/* roulang page: index */
:root {
            --primary: #FF5F1F;
            --primary-hover: #FFB347;
            --dark: #0D0D0D;
            --dark-card: #1A1A1A;
            --warm-bg: #F6F2ED;
            --white: #ffffff;
            --text-main: #1A1A1A;
            --text-muted: #6B6560;
            --text-light: #A8A29E;
            --border: #E5DFD8;
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(13, 13, 13, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(255, 95, 31, 0.12);
            --font-title: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 200ms ease;
            --transition-base: 300ms ease;
            --transition-slow: 400ms ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--warm-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        ::selection {
            background-color: rgba(255, 95, 31, 0.22);
            color: var(--dark);
        }

        .sidebar-scroll {
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
        }
        .sidebar-scroll::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar-scroll::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.25);
            border-radius: 4px;
        }

        .main-content {
            margin-left: 240px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: 240px;
            background: var(--dark);
            z-index: 100;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-slow);
        }

        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }
        .sidebar-brand:hover .brand-icon {
            background: var(--primary-hover);
        }

        .sidebar-brand .brand-text {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 18px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }
        .sidebar-brand .brand-sub {
            color: var(--text-light);
            font-size: 11px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav .nav-label {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 12px 12px 6px;
            font-weight: 500;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav a i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .sidebar-nav a:hover i {
            color: var(--primary-hover);
        }
        .sidebar-nav a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
            font-weight: 700;
        }
        .sidebar-nav a.active i {
            color: var(--primary);
        }
        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .sidebar-footer p {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            line-height: 1.5;
        }

        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 99;
            background: var(--dark);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
        }
        .mobile-topbar .brand {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 900;
            font-size: 16px;
            font-family: var(--font-title);
        }
        .mobile-topbar .brand-icon {
            width: 30px;
            height: 30px;
            background: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }
        .mobile-hamburger {
            color: #fff;
            font-size: 22px;
            padding: 4px 8px;
            border-radius: 4px;
            transition: background var(--transition-fast);
        }
        .mobile-hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 150;
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition-base);
        }
        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-drawer .drawer-panel {
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            background: var(--dark);
            padding: 20px;
            transform: translateX(-100%);
            transition: transform var(--transition-slow);
            display: flex;
            flex-direction: column;
        }
        .mobile-drawer.open .drawer-panel {
            transform: translateX(0);
        }
        .mobile-drawer .drawer-close {
            align-self: flex-end;
            color: #fff;
            font-size: 24px;
            padding: 4px 8px;
        }
        .mobile-drawer .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-top: 20px;
        }
        .mobile-drawer .drawer-nav a {
            color: rgba(255, 255, 255, 0.75);
            padding: 12px 14px;
            border-radius: 6px;
            font-size: 15px;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mobile-drawer .drawer-nav a i {
            width: 18px;
            color: rgba(255, 255, 255, 0.4);
        }
        .mobile-drawer .drawer-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .mobile-drawer .drawer-nav a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
            font-weight: 700;
        }

        .section-pad {
            padding: 64px 0;
        }
        .section-pad-sm {
            padding: 48px 0;
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .section-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 34px;
            line-height: 1.35;
            color: var(--dark);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.75;
            max-width: 680px;
            margin-bottom: 36px;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .hero-section {
            position: relative;
            background: var(--dark);
            min-height: 520px;
            display: flex;
            align-items: flex-end;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.55;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 13, 13, 0.25) 0%, rgba(13, 13, 13, 0.85) 75%, rgba(13, 13, 13, 0.95) 100%);
        }
        .hero-skew-bar {
            position: absolute;
            top: -60px;
            right: -40px;
            width: 400px;
            height: 120px;
            background: var(--primary);
            transform: rotate(-12deg);
            opacity: 0.75;
            z-index: 1;
        }
        .hero-skew-bar-2 {
            position: absolute;
            top: 60px;
            right: -120px;
            width: 300px;
            height: 60px;
            background: var(--primary-hover);
            transform: rotate(-12deg);
            opacity: 0.35;
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0 40px;
        }
        .hero-creator-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: 0 4px 28px rgba(0, 0, 0, 0.3);
            max-width: 720px;
            width: 100%;
        }
        .hero-creator-top {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
        }
        .hero-avatar {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background: var(--primary);
            overflow: hidden;
            flex-shrink: 0;
            border: 3px solid #fff;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .hero-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
        }
        .hero-nickname {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 22px;
            color: var(--dark);
            line-height: 1.3;
        }
        .hero-role {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            padding: 16px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .hero-badge-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-badge-num {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 26px;
            color: var(--dark);
            line-height: 1.2;
        }
        .hero-badge-label {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            margin-top: 18px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: scale(1.02);
            box-shadow: 0 4px 16px rgba(255, 95, 31, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: transparent;
            color: var(--dark);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid var(--border);
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(255, 95, 31, 0.06);
            color: var(--primary);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: 2px solid rgba(255, 255, 255, 0.4);
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }
        .btn-full {
            width: 100%;
            justify-content: center;
        }

        .hero-h1 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 48px;
            line-height: 1.25;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 14px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }
        .hero-sub {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            line-height: 1.7;
            text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
        }

        .metric-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .metric-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }
        .metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .metric-card:hover::after {
            transform: scaleX(1);
        }
        .metric-card:hover .metric-num {
            transform: translateY(-3px);
        }
        .metric-num {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 44px;
            color: var(--dark);
            line-height: 1.2;
            transition: transform var(--transition-base);
            display: inline-block;
        }
        .metric-num .unit {
            font-size: 22px;
            font-weight: 700;
            margin-left: 2px;
        }
        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 6px;
        }
        .metric-divider {
            width: 36px;
            height: 3px;
            background: var(--primary);
            margin: 12px auto 0;
            border-radius: 2px;
            opacity: 0.6;
        }

        .service-card {
            background: var(--white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .service-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .service-card:hover .service-card-img img {
            transform: scale(1.04);
        }
        .service-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 19px;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .service-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .service-card-link {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }
        .service-card-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }

        .compare-block {
            background: #F0EAE3;
            border-left: 4px solid var(--primary);
            border-radius: var(--radius-card);
            padding: 28px 30px;
            box-shadow: var(--shadow-card);
        }
        .compare-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 10px 0;
        }
        .compare-item+.compare-item {
            border-top: 1px solid rgba(13, 13, 13, 0.06);
        }
        .compare-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
        }
        .compare-icon.old {
            background: rgba(13, 13, 13, 0.08);
            color: var(--text-muted);
        }
        .compare-icon.new {
            background: rgba(255, 95, 31, 0.15);
            color: var(--primary);
        }
        .compare-text {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.6;
        }
        .compare-text strong {
            font-weight: 700;
            color: var(--dark);
        }

        .deep-article {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            box-shadow: var(--shadow-card);
        }
        .deep-article h3 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .deep-article p {
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.85;
            margin-bottom: 14px;
        }
        .deep-article p:last-child {
            margin-bottom: 0;
        }
        .deep-article .article-img {
            margin: 20px 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 260px;
        }
        .deep-article .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            align-items: flex-start;
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-date {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            padding-top: 2px;
            font-family: var(--font-title);
        }
        .news-body {
            flex: 1;
        }
        .news-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 6px;
            line-height: 1.5;
            transition: color var(--transition-fast);
        }
        .news-title:hover {
            color: var(--primary);
        }
        .news-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .news-readmore {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: all var(--transition-fast);
        }
        .news-readmore:hover {
            color: var(--primary-hover);
            gap: 8px;
        }

        .news-recommend {
            background: var(--dark-card);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            color: #fff;
            height: 100%;
        }
        .news-recommend h4 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 16px;
            margin-bottom: 14px;
            color: #fff;
        }
        .news-recommend a {
            display: block;
            color: rgba(255, 255, 255, 0.72);
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: color var(--transition-fast);
        }
        .news-recommend a:last-child {
            border-bottom: none;
        }
        .news-recommend a:hover {
            color: var(--primary-hover);
        }

        .review-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 24px 26px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .review-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .review-stars {
            color: var(--primary-hover);
            font-size: 13px;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }
        .review-text {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .review-author {
            font-size: 13px;
            font-weight: 700;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .review-author .avatar-sm {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: #fff;
            font-weight: 700;
        }

        .step-card {
            text-align: center;
            padding: 28px 20px;
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .step-num {
            width: 48px;
            height: 48px;
            background: var(--dark);
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 20px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }
        .step-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 17px;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .step-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .plan-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 30px 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            border: 2px solid transparent;
        }
        .plan-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .plan-card.highlight {
            border-color: var(--primary);
            background: #FFF9F5;
        }
        .plan-card .plan-badge {
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
        }
        .plan-name {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 20px;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .plan-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .plan-price {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .plan-price span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
        }
        .plan-features {
            list-style: none;
            padding: 0;
            margin-bottom: 20px;
        }
        .plan-features li {
            font-size: 13px;
            color: var(--text-main);
            padding: 6px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .plan-features li i {
            color: var(--primary);
            font-size: 12px;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 15px;
            color: var(--dark);
            transition: color var(--transition-fast);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-muted);
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(90deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .form-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            box-shadow: 0 4px 32px rgba(13, 13, 13, 0.08);
            max-width: 560px;
            margin: 0 auto;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            border: 2px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text-main);
            background: #fff;
            transition: border-color var(--transition-fast);
        }
        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--primary);
            outline: none;
        }
        .form-group input::placeholder {
            color: var(--text-light);
        }
        .privacy-note {
            font-size: 12px;
            color: var(--text-light);
            text-align: center;
            margin-top: 12px;
        }

        .floating-cta-bar {
            position: fixed;
            bottom: 0;
            left: 240px;
            right: 0;
            background: var(--dark);
            color: #fff;
            padding: 12px 24px;
            z-index: 80;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 -2px 16px rgba(0, 0, 0, 0.25);
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }
        .floating-cta-bar.visible {
            transform: translateY(0);
        }
        .floating-cta-bar p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            flex: 1;
        }
        .floating-cta-bar .btn-primary {
            padding: 8px 18px;
            font-size: 13px;
        }

        .footer {
            background: var(--dark);
            color: #fff;
            padding: 44px 0 28px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand-name {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 20px;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-brand-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 13px;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.55);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--primary-hover);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            align-items: center;
            justify-content: space-between;
        }
        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            margin: 0;
        }
        .footer-bottom a {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--primary-hover);
        }

        @media (max-width: 1023px) {
            .sidebar {
                display: none;
            }
            .mobile-topbar {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            .floating-cta-bar {
                left: 0;
            }
            .section-title {
                font-size: 28px;
            }
            .hero-h1 {
                font-size: 32px;
            }
            .hero-section {
                min-height: 420px;
            }
            .container-main {
                padding: 0 20px;
            }
            .section-pad {
                padding: 48px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .compare-block {
                padding: 20px 22px;
            }
        }

        @media (max-width: 767px) {
            .section-title {
                font-size: 24px;
            }
            .hero-h1 {
                font-size: 26px;
            }
            .hero-section {
                min-height: 360px;
            }
            .hero-creator-card {
                padding: 20px;
            }
            .hero-creator-top {
                flex-wrap: wrap;
            }
            .hero-badges {
                gap: 12px;
                flex-wrap: wrap;
            }
            .hero-badge-num {
                font-size: 20px;
            }
            .metric-num {
                font-size: 32px;
            }
            .service-card-img {
                height: 160px;
            }
            .deep-article {
                padding: 24px 20px;
            }
            .deep-article .article-img {
                height: 180px;
            }
            .news-list-item {
                flex-direction: column;
                gap: 6px;
            }
            .form-card {
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .container-main {
                padding: 0 16px;
            }
            .section-pad {
                padding: 40px 0;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 14px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 519px) {
            .hero-h1 {
                font-size: 22px;
            }
            .hero-sub {
                font-size: 14px;
            }
            .section-title {
                font-size: 21px;
            }
            .metric-num {
                font-size: 26px;
            }
            .metric-num .unit {
                font-size: 16px;
            }
            .metric-card {
                padding: 18px 14px;
            }
            .compare-block {
                padding: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #FF5F1F;
            --primary-hover: #FFB347;
            --dark: #0D0D0D;
            --dark-card: #1A1A1A;
            --warm-bg: #F6F2ED;
            --white: #ffffff;
            --text-main: #1A1A1A;
            --text-muted: #6B6560;
            --text-light: #A8A29E;
            --border: #E5DFD8;
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(13, 13, 13, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(255, 95, 31, 0.12);
            --font-title: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 200ms ease;
            --transition-base: 300ms ease;
            --transition-slow: 400ms ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--warm-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .main-content {
            margin-left: 240px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 240px;
            background: var(--dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
        }

        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }

        .sidebar-brand:hover .brand-icon {
            background: var(--primary-hover);
        }

        .sidebar-brand .brand-text {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 18px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .sidebar-brand .brand-sub {
            color: var(--text-light);
            font-size: 11px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav .nav-label {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 12px 12px 6px;
            font-weight: 500;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .sidebar-nav a:hover i {
            color: var(--primary-hover);
        }

        .sidebar-nav a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
            font-weight: 700;
        }

        .sidebar-nav a.active i {
            color: var(--primary);
        }

        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-footer p {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            line-height: 1.5;
        }

        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 99;
            background: var(--dark);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
        }

        .mobile-topbar .brand {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 900;
            font-size: 16px;
            font-family: var(--font-title);
        }

        .mobile-topbar .brand-icon {
            width: 30px;
            height: 30px;
            background: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }

        .mobile-hamburger {
            width: 38px;
            height: 38px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            transition: background var(--transition-fast);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .mobile-hamburger:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(13, 13, 13, 0.98);
            z-index: 98;
            flex-direction: column;
            padding: 80px 20px 20px;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 16px;
            border-radius: 8px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-menu a i {
            width: 22px;
            text-align: center;
            color: rgba(255, 255, 255, 0.45);
        }

        .mobile-menu a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .mobile-menu a.active {
            background: rgba(255, 95, 31, 0.2);
            color: #fff;
            font-weight: 700;
        }

        .mobile-menu a.active i {
            color: var(--primary);
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 60px 0;
        }

        .section-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 32px;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

        .section-sub {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 720px;
            margin-bottom: 32px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(255, 95, 31, 0.25);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: var(--dark);
            transform: scale(1.02);
            box-shadow: 0 4px 16px rgba(255, 95, 31, 0.35);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-main);
            font-weight: 600;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--border);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(255, 95, 31, 0.05);
            color: var(--primary);
        }

        .card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .metric-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width var(--transition-base);
        }

        .metric-card:hover::after {
            width: 100%;
        }

        .metric-card:hover .metric-number {
            transform: translateY(-3px);
        }

        .metric-number {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 44px;
            color: var(--primary);
            line-height: 1.2;
            transition: transform var(--transition-base);
            letter-spacing: -1px;
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        .service-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .service-image {
            height: 200px;
            overflow: hidden;
            border-radius: 8px 8px 0 0;
        }

        .service-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 8px 8px 0 0;
            transition: transform var(--transition-slow);
        }

        .service-card:hover .service-image img {
            transform: scale(1.03);
        }

        .content-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .content-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .content-card-image {
            height: 180px;
            overflow: hidden;
            border-radius: 8px 8px 0 0;
        }

        .content-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 8px 8px 0 0;
            transition: transform var(--transition-slow);
        }

        .content-card:hover .content-card-image img {
            transform: scale(1.03);
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            background: var(--white);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--primary);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 700;
            font-size: 15px;
            color: var(--text-main);
            transition: color var(--transition-fast);
            gap: 12px;
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            transition: transform var(--transition-base);
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(90deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .comparison-col {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px;
            border-left: 4px solid var(--border);
            transition: all var(--transition-base);
        }

        .comparison-col.highlight {
            border-left-color: var(--primary);
        }

        .comparison-col:hover {
            box-shadow: var(--shadow-card-hover);
        }

        .comparison-col h4 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 18px;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .comparison-col ul {
            list-style: none;
            padding: 0;
        }

        .comparison-col ul li {
            padding: 8px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .comparison-col ul li i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 12px;
            flex-shrink: 0;
        }

        .form-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 36px;
            max-width: 640px;
            margin: 0 auto;
        }

        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text-main);
            transition: all var(--transition-fast);
            background: var(--white);
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 95, 31, 0.1);
        }

        .form-input::placeholder {
            color: var(--text-light);
        }

        .select-wrap {
            position: relative;
        }

        .select-wrap::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 12px;
            pointer-events: none;
        }

        .select-wrap select {
            appearance: none;
            -webkit-appearance: none;
            -moz-appearance: none;
            width: 100%;
            padding: 12px 40px 12px 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text-main);
            background: var(--white);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .select-wrap select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 95, 31, 0.1);
        }

        .footer {
            background: var(--dark);
            color: #fff;
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand-name {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .footer-brand-desc {
            color: var(--text-light);
            font-size: 13px;
            line-height: 1.7;
            max-width: 380px;
        }

        .footer-col h5 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 14px;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: var(--text-light);
            font-size: 13px;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--primary-hover);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-light);
        }

        .footer-bottom a {
            color: var(--text-light);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--primary-hover);
        }

        .hero-category {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(13, 13, 13, 0.92) 0%, rgba(26, 26, 26, 0.85) 50%, rgba(255, 95, 31, 0.55) 100%);
        }

        .hero-category-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .hero-category-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            opacity: 0.35;
        }

        .hero-category-content {
            position: relative;
            z-index: 1;
            padding: 60px 0;
            color: #fff;
        }

        .hero-category-tag {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 13px;
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .hero-category h1 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 52px;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 12px;
            color: #fff;
        }

        .hero-category-desc {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
            max-width: 560px;
            margin-bottom: 24px;
        }

        .deep-content {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 36px;
            margin-bottom: 24px;
        }

        .deep-content h3 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 22px;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .deep-content p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .news-item {
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition-fast);
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover .news-title {
            color: var(--primary);
        }

        .news-date {
            font-size: 12px;
            color: var(--text-light);
            letter-spacing: 1px;
            margin-bottom: 6px;
            font-weight: 500;
        }

        .news-title {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 16px;
            color: var(--text-main);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }

        .news-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 13px;
            transition: all var(--transition-fast);
        }

        .btn-text:hover {
            color: var(--primary-hover);
            gap: 10px;
        }

        .brand-section {
            background: var(--dark);
            color: #fff;
            border-radius: var(--radius-card);
            padding: 48px 36px;
            margin: 40px 0;
        }

        .brand-section h3 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 28px;
            color: #fff;
            margin-bottom: 16px;
        }

        .brand-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            line-height: 1.8;
        }

        .tag-badge {
            display: inline-block;
            background: rgba(255, 95, 31, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }

        .divider-accent {
            width: 48px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            margin-bottom: 16px;
        }

        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .hero-category h1 {
                font-size: 36px;
            }
            .section-title {
                font-size: 28px;
            }
            .section-pad {
                padding: 40px 0;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .hero-category {
                min-height: 320px;
            }
            .hero-category h1 {
                font-size: 30px;
            }
            .hero-category-desc {
                font-size: 15px;
            }
            .section-title {
                font-size: 24px;
            }
            .metric-number {
                font-size: 34px;
            }
            .container-main {
                padding: 0 16px;
            }
            .form-card {
                padding: 24px 20px;
            }
            .deep-content {
                padding: 24px 20px;
            }
            .brand-section {
                padding: 32px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 26px;
            }
            .metric-number {
                font-size: 28px;
            }
            .section-pad {
                padding: 28px 0;
            }
            .btn-primary,
            .btn-secondary {
                font-size: 13px;
                padding: 10px 18px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #FF5F1F;
            --primary-hover: #FFB347;
            --dark: #0D0D0D;
            --dark-card: #1A1A1A;
            --warm-bg: #F6F2ED;
            --white: #ffffff;
            --text-main: #1A1A1A;
            --text-muted: #6B6560;
            --text-light: #A8A29E;
            --border: #E5DFD8;
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(13, 13, 13, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(255, 95, 31, 0.12);
            --font-title: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 200ms ease;
            --transition-base: 300ms ease;
            --transition-slow: 400ms ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--warm-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: 240px;
            height: 100vh;
            background: var(--dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            border-right: 1px solid rgba(255,255,255,0.06);
        }
        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }
        .sidebar-brand:hover .brand-icon {
            background: var(--primary-hover);
        }
        .sidebar-brand .brand-text {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 18px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }
        .sidebar-brand .brand-sub {
            color: var(--text-light);
            font-size: 11px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav .nav-label {
            color: rgba(255,255,255,0.35);
            font-size: 11px;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 12px 12px 6px;
            font-weight: 500;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            color: rgba(255,255,255,0.72);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav a i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            color: rgba(255,255,255,0.45);
            transition: color var(--transition-fast);
        }
        .sidebar-nav a:hover {
            background: rgba(255,255,255,0.06);
            color: #fff;
        }
        .sidebar-nav a:hover i {
            color: var(--primary-hover);
        }
        .sidebar-nav a.active {
            background: rgba(255,95,31,0.18);
            color: #fff;
            font-weight: 700;
        }
        .sidebar-nav a.active i {
            color: var(--primary);
        }
        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
        }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
            flex-shrink: 0;
        }
        .sidebar-footer p {
            color: rgba(255,255,255,0.35);
            font-size: 11px;
            line-height: 1.5;
        }
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 99;
            background: var(--dark);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0,0,0,0.25);
        }
        .mobile-topbar .brand {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 900;
            font-size: 16px;
            font-family: var(--font-title);
        }
        .mobile-topbar .brand-icon {
            width: 30px;
            height: 30px;
            background: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }
        .mobile-hamburger {
            color: #fff;
            font-size: 20px;
            padding: 8px 10px;
            border-radius: 6px;
            background: rgba(255,255,255,0.08);
            transition: background var(--transition-fast);
        }
        .mobile-hamburger:hover {
            background: rgba(255,95,31,0.3);
        }
        .mobile-menu {
            display: none;
            position: sticky;
            top: 54px;
            z-index: 98;
            background: var(--dark);
            padding: 10px 16px 16px;
            border-bottom: 2px solid rgba(255,95,31,0.35);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 6px;
            color: rgba(255,255,255,0.75);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }
        .mobile-menu nav a i {
            width: 18px;
            text-align: center;
            color: rgba(255,255,255,0.45);
        }
        .mobile-menu nav a:hover {
            background: rgba(255,255,255,0.06);
            color: #fff;
        }
        .mobile-menu nav a.active {
            background: rgba(255,95,31,0.18);
            color: #fff;
            font-weight: 700;
        }
        .mobile-menu nav a.active i {
            color: var(--primary);
        }
        .main-content {
            margin-left: 240px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .container-main {
            width: 100%;
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .section-stack {
            padding: 56px 0;
        }
        .section-stack-sm {
            padding: 40px 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 36px;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 720px;
            margin-bottom: 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            cursor: pointer;
            text-align: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: none;
            box-shadow: 0 2px 10px rgba(255,95,31,0.25);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(255,95,31,0.35);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border: 1.5px solid var(--border);
            transition: all var(--transition-base);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(255,95,31,0.06);
            color: var(--primary);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255,255,255,0.4);
        }
        .btn-outline-light:hover {
            border-color: var(--primary-hover);
            background: rgba(255,179,71,0.12);
            color: var(--primary-hover);
        }
        .hero-section {
            padding: 60px 0 40px;
            background: linear-gradient(165deg, #fff 0%, #fff 55%, var(--warm-bg) 100%);
            border-bottom: 1px solid var(--border);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 52px;
            line-height: 1.15;
            color: var(--dark);
            letter-spacing: -1px;
            margin-bottom: 16px;
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-visual {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .icon-matrix {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
        }
        .icon-matrix-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px 8px;
            text-align: center;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }
        .icon-matrix-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255,95,31,0.3);
        }
        .icon-matrix-item i {
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 8px;
            display: block;
        }
        .icon-matrix-item span {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
            display: block;
            line-height: 1.3;
        }
        .status-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--dark);
            border-radius: var(--radius-card);
            padding: 14px 20px;
            color: #fff;
        }
        .status-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #22c55e;
            position: relative;
            flex-shrink: 0;
        }
        .status-dot::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            background: rgba(34,197,94,0.35);
            animation: pulse 1.8s ease infinite;
        }
        @keyframes pulse {
            0%,100% { transform: scale(0.8); opacity: 0.6; }
            50% { transform: scale(1.4); opacity: 0; }
        }
        .status-bar .status-text {
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .status-bar .status-sub {
            font-size: 12px;
            color: var(--text-light);
            margin-left: auto;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .stat-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }
        .stat-card:hover::after {
            transform: scaleX(1);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 44px;
            color: var(--primary);
            line-height: 1.15;
            transition: transform var(--transition-base);
            display: block;
        }
        .stat-card:hover .stat-number {
            transform: translateY(-2px);
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 4px;
            display: block;
        }
        .stat-divider {
            width: 36px;
            height: 3px;
            background: var(--border);
            margin: 10px 0 8px;
            border-radius: 2px;
        }
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .service-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .service-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255,95,31,0.2);
        }
        .service-card-img {
            height: 190px;
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .service-card:hover .service-card-img img {
            transform: scale(1.05);
        }
        .service-card-body {
            padding: 20px 22px 22px;
        }
        .service-card-title {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 19px;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .service-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 14px;
        }
        .service-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }
        .service-card-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }
        .compare-block {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            border-left: 4px solid var(--primary);
        }
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .compare-col {
            padding: 20px 24px;
            border-radius: 8px;
            background: var(--warm-bg);
        }
        .compare-col-title {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 17px;
            margin-bottom: 12px;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compare-col-title i {
            color: var(--primary);
        }
        .compare-item {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            color: var(--text-muted);
        }
        .compare-item:last-child {
            border-bottom: none;
        }
        .compare-item i {
            color: #22c55e;
            font-size: 13px;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .compare-item.less i {
            color: #ef4444;
        }
        .deep-content {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 36px 36px 32px;
            box-shadow: var(--shadow-card);
        }
        .deep-content h3 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .deep-content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .deep-content p:last-child {
            margin-bottom: 0;
        }
        .deep-content-img {
            margin: 20px 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 260px;
        }
        .deep-content-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .news-list {
            display: flex;
            flex-direction: column;
        }
        .news-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition-fast);
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-date {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            white-space: nowrap;
            min-width: 90px;
            padding-top: 3px;
        }
        .news-body {
            flex: 1;
        }
        .news-title {
            font-weight: 700;
            font-size: 17px;
            color: var(--dark);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .news-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 10px;
        }
        .news-btn {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }
        .news-btn:hover {
            color: var(--primary-hover);
            gap: 10px;
        }
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-weight: 700;
            font-size: 16px;
            color: var(--dark);
            transition: all var(--transition-fast);
            text-align: left;
        }
        .faq-question:hover {
            background: rgba(255,95,31,0.04);
            color: var(--primary);
        }
        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--primary);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-arrow {
            transform: rotate(90deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 22px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 240px;
            padding: 0 22px 20px;
        }
        .cta-form-section {
            background: var(--dark);
            border-radius: 16px;
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
        }
        .cta-form-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255,95,31,0.12);
            pointer-events: none;
        }
        .cta-form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            position: relative;
            z-index: 1;
        }
        .cta-form-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 30px;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .cta-form-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .cta-form-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px 26px;
            box-shadow: 0 8px 32px rgba(0,0,0,0.28);
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .form-input, .form-select {
            width: 100%;
            padding: 11px 14px;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            background: #fff;
            transition: all var(--transition-fast);
            color: var(--text-main);
        }
        .form-input:focus, .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255,95,31,0.1);
            outline: none;
        }
        .form-select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B6560' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }
        .form-btn {
            width: 100%;
            padding: 13px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
        }
        .form-btn:hover {
            background: var(--primary-hover);
            transform: scale(1.01);
            box-shadow: 0 6px 20px rgba(255,95,31,0.3);
        }
        .form-privacy {
            font-size: 11px;
            color: var(--text-light);
            text-align: center;
            margin-top: 10px;
        }
        .brand-intro-block {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 36px 36px 32px;
            box-shadow: var(--shadow-card);
            border-top: 3px solid var(--primary);
        }
        .brand-intro-block h3 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 14px;
        }
        .brand-intro-block p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .footer {
            background: var(--dark);
            color: rgba(255,255,255,0.75);
            margin-top: auto;
            flex-shrink: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding: 48px 0 36px;
        }
        .footer-brand-name {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 22px;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 1px;
        }
        .footer-brand-desc {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-light);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--primary-hover);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            align-items: center;
            font-size: 12px;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.5);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--primary-hover);
        }
        @media (max-width: 1100px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 1023px) {
            .sidebar {
                display: none;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-title {
                font-size: 36px;
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .cta-form-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .container-main {
                padding: 0 16px;
            }
            .section-stack {
                padding: 36px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .icon-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 6px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .compare-block {
                padding: 24px 18px;
            }
            .deep-content {
                padding: 24px 20px;
            }
            .brand-intro-block {
                padding: 24px 20px;
            }
            .cta-form-section {
                padding: 30px 20px;
            }
            .section-stack-sm {
                padding: 28px 0;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 24px;
            }
            .section-title {
                font-size: 24px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }
            .icon-matrix-item {
                padding: 12px 6px;
            }
            .icon-matrix-item i {
                font-size: 20px;
            }
            .stat-number {
                font-size: 34px;
            }
        }

/* roulang page: category3 */
/* ============ 设计系统变量 ============ */
        :root {
            --primary: #FF5F1F;
            --primary-hover: #FFB347;
            --dark: #0D0D0D;
            --dark-card: #1A1A1A;
            --warm-bg: #F6F2ED;
            --white: #ffffff;
            --text-main: #1A1A1A;
            --text-muted: #6B6560;
            --text-light: #A8A29E;
            --border: #E5DFD8;
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(13, 13, 13, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(255, 95, 31, 0.12);
            --font-title: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 200ms ease;
            --transition-base: 300ms ease;
            --transition-slow: 400ms ease;
            --sidebar-width: 240px;
        }

        /* ============ 基础重置 ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--warm-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        /* ============ 布局容器 ============ */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            width: calc(100% - var(--sidebar-width));
        }

        .container-main {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .section-pad {
            padding: 72px 0;
        }

        .section-pad-sm {
            padding: 48px 0;
        }

        /* ============ 左侧竖向导航 ============ */
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--dark);
            z-index: 100;
            display: flex;
            flex-direction: column;
            box-shadow: 2px 0 16px rgba(0, 0, 0, 0.2);
        }

        .sidebar-brand {
            padding: 26px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .sidebar-brand .brand-icon {
            width: 42px;
            height: 42px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }

        .sidebar-brand:hover .brand-icon {
            background: var(--primary-hover);
        }

        .sidebar-brand .brand-text {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 18px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .sidebar-brand .brand-sub {
            color: var(--text-light);
            font-size: 10px;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-top: 2px;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }

        .sidebar-nav .nav-label {
            color: rgba(255, 255, 255, 0.35);
            font-size: 10px;
            letter-spacing: 2.5px;
            text-transform: uppercase;
            padding: 14px 12px 6px;
            font-weight: 600;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .sidebar-nav a:hover i {
            color: var(--primary-hover);
        }

        .sidebar-nav a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
            font-weight: 700;
        }

        .sidebar-nav a.active i {
            color: var(--primary);
        }

        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
        }

        .sidebar-footer {
            padding: 14px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-footer p {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            line-height: 1.5;
        }

        /* ============ 移动端顶部导航 ============ */
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 99;
            background: var(--dark);
            padding: 10px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
        }

        .mobile-topbar .brand {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 900;
            font-size: 16px;
            font-family: var(--font-title);
        }

        .mobile-topbar .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }

        .mobile-hamburger {
            width: 36px;
            height: 36px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            background: rgba(255, 255, 255, 0.08);
            transition: background var(--transition-fast);
        }

        .mobile-hamburger:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        .mobile-nav-drawer {
            display: none;
            position: fixed;
            top: 56px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(13, 13, 13, 0.98);
            z-index: 98;
            padding: 16px;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-nav-drawer.open {
            display: flex;
        }

        .mobile-nav-drawer a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: 8px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .mobile-nav-drawer a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .mobile-nav-drawer a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
            font-weight: 700;
        }

        .mobile-nav-drawer a i {
            width: 22px;
            text-align: center;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ============ Hero 区域 ============ */
        .hero-category {
            position: relative;
            background: var(--dark);
            overflow: hidden;
            min-height: 480px;
            display: flex;
            align-items: center;
        }

        .hero-category .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            transition: transform 8s ease;
        }

        .hero-category:hover .hero-bg {
            transform: scale(1.05);
        }

        .hero-category .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 13, 0.92) 0%, rgba(13, 13, 13, 0.55) 40%, rgba(13, 13, 13, 0.2) 70%, rgba(13, 13, 13, 0.75) 100%);
        }

        .hero-category .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0;
            max-width: 720px;
        }

        .hero-category .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 95, 31, 0.18);
            color: var(--primary-hover);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 95, 31, 0.3);
        }

        .hero-category h1 {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 52px;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .hero-category h1 .highlight {
            color: var(--primary);
        }

        .hero-category .hero-desc {
            color: rgba(255, 255, 255, 0.78);
            font-size: 18px;
            line-height: 1.7;
            max-width: 600px;
            margin-bottom: 28px;
        }

        .hero-category .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ============ 按钮体系 ============ */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 95, 31, 0.3);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: var(--dark);
            transform: scale(1.02);
            box-shadow: 0 6px 24px rgba(255, 149, 60, 0.45);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(255, 95, 31, 0.5);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.5px;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            border-color: var(--primary-hover);
            color: var(--primary-hover);
            background: rgba(255, 95, 31, 0.08);
        }

        .btn-secondary:focus-visible {
            outline: 3px solid rgba(255, 95, 31, 0.4);
            outline-offset: 2px;
        }

        .btn-dark {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--dark);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-dark:hover {
            background: var(--dark-card);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        /* ============ 指标看板 ============ */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .metric-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transition: transform var(--transition-base);
            transform-origin: left;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .metric-card:hover::after {
            transform: scaleX(1);
        }

        .metric-card .metric-icon {
            width: 48px;
            height: 48px;
            background: rgba(255, 95, 31, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin: 0 auto 14px;
            transition: all var(--transition-fast);
        }

        .metric-card:hover .metric-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.08);
        }

        .metric-card .metric-number {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 42px;
            color: var(--dark);
            line-height: 1.2;
            letter-spacing: -1px;
            transition: transform var(--transition-base);
        }

        .metric-card:hover .metric-number {
            transform: translateY(-2px);
        }

        .metric-card .metric-unit {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-left: 2px;
        }

        .metric-card .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        .metric-card .metric-divider {
            width: 40px;
            height: 2px;
            background: var(--border);
            margin: 10px auto 0;
            border-radius: 2px;
        }

        /* ============ 服务矩阵 ============ */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .service-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(255, 95, 31, 0.3);
        }

        .service-card .service-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .service-card .service-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }

        .service-card:hover .service-img img {
            transform: scale(1.06);
        }

        .service-card .service-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card .service-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(255, 95, 31, 0.08);
            padding: 3px 10px;
            border-radius: 12px;
            letter-spacing: 1px;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .service-card h3 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }

        .service-card .service-link {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }

        .service-card .service-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }

        /* ============ 结果对比 ============ */
        .compare-section {
            background: var(--dark);
            border-radius: 16px;
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
        }

        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            position: relative;
            z-index: 2;
        }

        .compare-col {
            padding: 24px 32px;
            border-radius: 10px;
        }

        .compare-col.before {
            background: rgba(255, 255, 255, 0.04);
            border-left: 4px solid rgba(255, 255, 255, 0.2);
        }

        .compare-col.after {
            background: rgba(255, 95, 31, 0.1);
            border-left: 4px solid var(--primary);
        }

        .compare-col h4 {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 20px;
            margin-bottom: 14px;
        }

        .compare-col.after h4 {
            color: var(--primary-hover);
        }

        .compare-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .compare-col ul li {
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.6;
        }

        .compare-col ul li i {
            margin-top: 4px;
            font-size: 13px;
            flex-shrink: 0;
        }

        .compare-col.before ul li i {
            color: rgba(255, 255, 255, 0.35);
        }
        .compare-col.after ul li i {
            color: var(--primary-hover);
        }

        /* ============ 主播卡片网格 ============ */
        .streamer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .streamer-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }

        .streamer-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(255, 95, 31, 0.3);
        }

        .streamer-card .streamer-img {
            height: 240px;
            overflow: hidden;
            position: relative;
        }

        .streamer-card .streamer-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }

        .streamer-card:hover .streamer-img img {
            transform: scale(1.05);
        }

        .streamer-card .streamer-img .badge-overlay {
            position: absolute;
            top: 14px;
            left: 14px;
            display: flex;
            gap: 6px;
        }

        .streamer-card .streamer-img .badge-overlay span {
            background: var(--primary);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 12px;
            letter-spacing: 0.5px;
        }
        .streamer-card .streamer-img .badge-overlay span.outline {
            background: rgba(13, 13, 13, 0.7);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .streamer-card .streamer-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .streamer-card .streamer-body h4 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .streamer-card .streamer-body .streamer-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .streamer-card .streamer-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }

        .streamer-card .streamer-body .streamer-tag {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ============ 深度内容区 ============ */
        .content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .content-block .content-text h2 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 30px;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .content-block .content-text p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .content-block .content-text p strong {
            color: var(--dark);
            font-weight: 600;
        }

        .content-block .content-img {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .content-block .content-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
            min-height: 300px;
        }

        /* ============ 流程/路径 ============ */
        .timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .timeline::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 12.5%;
            right: 12.5%;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        .timeline-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .timeline-step .step-dot {
            width: 64px;
            height: 64px;
            background: var(--white);
            border: 2px solid var(--border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin: 0 auto 16px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            font-weight: 700;
        }

        .timeline-step:hover .step-dot {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: scale(1.08);
            box-shadow: 0 6px 20px rgba(255, 95, 31, 0.3);
        }

        .timeline-step h5 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 15px;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .timeline-step p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* ============ 新闻列表 ============ */
        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-item {
            display: flex;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover {
            padding-left: 8px;
        }

        .news-item .news-date {
            flex-shrink: 0;
            text-align: center;
            background: var(--white);
            border-radius: 8px;
            padding: 12px 16px;
            min-width: 80px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
        }

        .news-item:hover .news-date {
            background: var(--primary);
            border-color: var(--primary);
        }

        .news-item .news-date .day {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 22px;
            color: var(--dark);
            display: block;
            line-height: 1.2;
        }
        .news-item:hover .news-date .day {
            color: #fff;
        }
        .news-item .news-date .month {
            font-size: 11px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .news-item:hover .news-date .month {
            color: rgba(255, 255, 255, 0.7);
        }

        .news-item .news-content h4 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 6px;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }

        .news-item:hover .news-content h4 {
            color: var(--primary);
        }

        .news-item .news-content p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 8px;
        }

        .news-item .news-content .news-link {
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ============ FAQ 手风琴 ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--white);
            border-radius: 10px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(255, 95, 31, 0.3);
        }
        .faq-item.open {
            border-color: rgba(255, 95, 31, 0.4);
            box-shadow: var(--shadow-card-hover);
        }

        .faq-question {
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            transition: all var(--transition-fast);
            width: 100%;
            text-align: left;
            background: none;
            border: none;
        }

        .faq-question:hover {
            background: rgba(255, 95, 31, 0.03);
        }

        .faq-question span {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 15px;
            color: var(--dark);
            line-height: 1.5;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 95, 31, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(90deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
        }

        .faq-answer p {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ============ 表单区域 ============ */
        .form-section {
            background: var(--white);
            border-radius: 16px;
            box-shadow: var(--shadow-card);
            padding: 44px 40px;
            max-width: 640px;
            margin: 0 auto;
            border: 1px solid var(--border);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text-main);
            background: var(--warm-bg);
            transition: all var(--transition-fast);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(255, 95, 31, 0.1);
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-light);
        }

        .form-submit {
            width: 100%;
            padding: 14px 28px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            letter-spacing: 1px;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 95, 31, 0.3);
        }

        .form-submit:hover {
            background: var(--primary-hover);
            color: var(--dark);
            box-shadow: 0 6px 24px rgba(255, 149, 60, 0.45);
        }

        .form-submit:active {
            transform: scale(0.98);
        }

        .privacy-notice {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 14px;
            text-align: center;
            line-height: 1.5;
        }

        /* ============ 页脚 ============ */
        .footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
            margin-top: auto;
            flex-shrink: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand-name {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .footer-brand-desc {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }

        .footer-col h5 {
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            padding: 4px 0;
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--primary-hover);
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
            font-size: 12px;
        }
        .footer-bottom a:hover {
            color: var(--primary-hover);
        }

        /* ============ Section标题 ============ */
        .section-title {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-title .title-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-title h2 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 34px;
            color: var(--dark);
            line-height: 1.25;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }

        .section-title p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-title.left {
            text-align: left;
        }
        .section-title.left p {
            margin: 0;
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 0px;
            }

            body {
                flex-direction: column;
            }

            .sidebar {
                display: none;
            }

            .main-content {
                margin-left: 0;
                width: 100%;
            }

            .mobile-topbar {
                display: flex;
            }

            .container-main {
                padding: 0 20px;
            }

            .section-pad {
                padding: 48px 0;
            }

            .section-pad-sm {
                padding: 32px 0;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .service-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .streamer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .timeline::before {
                display: none;
            }

            .content-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .hero-category h1 {
                font-size: 40px;
            }

            .section-title h2 {
                font-size: 28px;
            }

            .compare-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .container-main {
                padding: 0 16px;
            }

            .section-pad {
                padding: 36px 0;
            }

            .hero-category {
                min-height: 400px;
            }

            .hero-category h1 {
                font-size: 32px;
                line-height: 1.25;
            }

            .hero-category .hero-desc {
                font-size: 15px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .metric-card {
                padding: 20px 16px;
            }

            .metric-card .metric-number {
                font-size: 32px;
            }

            .service-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .streamer-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .timeline {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .section-title {
                margin-bottom: 28px;
            }
            .section-title h2 {
                font-size: 24px;
            }

            .form-section {
                padding: 28px 20px;
            }

            .compare-section {
                padding: 28px 18px;
            }

            .compare-col {
                padding: 18px 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .news-item {
                flex-direction: column;
                gap: 10px;
            }
            .news-item .news-date {
                min-width: auto;
                text-align: left;
                display: inline-flex;
                align-items: center;
                gap: 8px;
                padding: 6px 12px;
            }
            .news-item .news-date .day {
                font-size: 18px;
                display: inline;
            }
        }

        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 26px;
            }

            .hero-category .hero-badge {
                font-size: 11px;
                padding: 6px 12px;
            }

            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 13px;
                width: 100%;
                justify-content: center;
            }

            .hero-category .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .metric-card .metric-number {
                font-size: 28px;
            }

            .section-title h2 {
                font-size: 22px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #FF5F1F;
            --primary-hover: #FFB347;
            --dark: #0D0D0D;
            --dark-card: #1A1A1A;
            --warm-bg: #F6F2ED;
            --white: #ffffff;
            --text-main: #1A1A1A;
            --text-muted: #6B6560;
            --text-light: #A8A29E;
            --border: #E5DFD8;
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(13, 13, 13, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(255, 95, 31, 0.12);
            --font-title: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 200ms ease;
            --transition-base: 300ms ease;
            --transition-slow: 400ms ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--warm-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .main-content {
            margin-left: 240px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav .nav-label {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 12px 12px 6px;
            font-weight: 500;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .sidebar-nav a:hover i {
            color: var(--primary-hover);
        }

        .sidebar-nav a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
            font-weight: 700;
        }

        .sidebar-nav a.active i {
            color: var(--primary);
        }

        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-footer p {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            line-height: 1.5;
        }

        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 99;
            background: var(--dark);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
        }

        .mobile-topbar .brand {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 900;
            font-size: 16px;
            font-family: var(--font-title);
        }

        .mobile-topbar .brand-icon {
            width: 30px;
            height: 30px;
            background: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }

        .mobile-hamburger {
            width: 36px;
            height: 36px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            cursor: pointer;
            transition: background var(--transition-fast);
        }

        .mobile-hamburger:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        .mobile-hamburger span {
            width: 18px;
            height: 2px;
            background: #fff;
            border-radius: 1px;
            transition: all var(--transition-fast);
        }

        .mobile-hamburger.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .mobile-hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-hamburger.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 54px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--dark);
            z-index: 98;
            flex-direction: column;
            padding: 16px;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.72);
            font-size: 16px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .mobile-menu a i {
            width: 20px;
            text-align: center;
            color: rgba(255, 255, 255, 0.45);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
        }
        .mobile-menu a.active i {
            color: var(--primary);
        }

        .hero-section {
            position: relative;
            overflow: hidden;
            background: var(--dark);
            color: #fff;
            padding: 48px 0 56px;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 13, 0.92) 0%, rgba(13, 13, 13, 0.7) 50%, rgba(255, 95, 31, 0.15) 100%);
            z-index: 1;
        }

        .hero-section .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
            border-radius: 0;
        }

        .hero-section .container-main {
            position: relative;
            z-index: 2;
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 95, 31, 0.2);
            border: 1px solid rgba(255, 95, 31, 0.4);
            border-radius: 20px;
            font-size: 12px;
            color: var(--primary-hover);
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .hero-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 48px;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.6;
            max-width: 580px;
            margin-bottom: 28px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            box-shadow: 0 4px 14px rgba(255, 95, 31, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: scale(1.02);
            box-shadow: 0 8px 24px rgba(255, 95, 31, 0.4);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
        }
        .btn-secondary:hover {
            border-color: var(--primary-hover);
            background: rgba(255, 179, 71, 0.1);
            color: var(--primary-hover);
        }

        .section-block {
            padding: 56px 0;
        }

        .section-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 32px;
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-sub {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 640px;
            line-height: 1.6;
            margin-bottom: 32px;
        }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border-bottom: 2px solid transparent;
            position: relative;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-bottom-color: var(--primary);
            transform: translateY(-2px);
        }

        .metric-number {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 40px;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
            transition: transform var(--transition-base);
        }
        .metric-card:hover .metric-number {
            transform: translateY(-2px);
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .content-card {
            background: var(--white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .content-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }

        .content-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .content-card h3 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 18px;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .content-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }

        .content-card-date {
            font-size: 12px;
            color: var(--text-light);
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .content-card-date i {
            color: var(--primary);
        }

        .compare-section {
            background: var(--dark);
            color: #fff;
        }

        .compare-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .compare-panel {
            background: var(--dark-card);
            border-radius: var(--radius-card);
            padding: 28px;
            border-left: 3px solid var(--text-light);
            transition: all var(--transition-base);
        }

        .compare-panel.featured {
            border-left-color: var(--primary);
            background: #1A1A1A;
        }

        .compare-panel h3 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 20px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .compare-panel.featured h3 i {
            color: var(--primary);
        }
        .compare-panel:not(.featured) h3 i {
            color: var(--text-light);
        }

        .compare-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.8);
        }

        .compare-list li i {
            margin-top: 3px;
            flex-shrink: 0;
        }
        .compare-panel.featured .compare-list li i {
            color: var(--primary-hover);
        }
        .compare-panel:not(.featured) .compare-list li i {
            color: rgba(255, 255, 255, 0.4);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card-hover);
        }

        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 16px;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(255, 95, 31, 0.04);
        }

        .faq-question h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            margin: 0;
            flex: 1;
        }

        .faq-arrow {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 95, 31, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform var(--transition-base);
            color: var(--primary);
        }

        .faq-arrow.open {
            transform: rotate(90deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-answer.open {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        .cta-section {
            background: linear-gradient(135deg, #F6F2ED 0%, #EDE6DE 100%);
        }

        .cta-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card-hover);
            padding: 40px;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-card input,
        .cta-card select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            background: var(--warm-bg);
            color: var(--text-main);
        }

        .cta-card input:focus,
        .cta-card select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 95, 31, 0.12);
        }

        .cta-card label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .cta-card .form-group {
            margin-bottom: 18px;
        }

        .btn-submit {
            width: 100%;
            padding: 14px 24px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            box-shadow: 0 4px 14px rgba(255, 95, 31, 0.3);
        }
        .btn-submit:hover {
            background: var(--primary-hover);
            transform: scale(1.01);
            box-shadow: 0 8px 24px rgba(255, 95, 31, 0.4);
        }

        .privacy-note {
            font-size: 12px;
            color: var(--text-light);
            text-align: center;
            margin-top: 12px;
        }

        .footer {
            background: var(--dark);
            color: #fff;
            padding: 56px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand-name {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 20px;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand-desc {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            line-height: 1.6;
            max-width: 320px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            padding: 6px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--primary-hover);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--primary-hover);
        }

        .brand-intro-section {
            background: var(--white);
        }

        .brand-intro-text {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-main);
            max-width: 840px;
        }

        .deep-content-section {
            background: var(--warm-bg);
        }

        .deep-content-text {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-main);
            max-width: 840px;
        }

        .deep-content-text p {
            margin-bottom: 20px;
        }

        .focus-ring:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        @media (max-width: 1024px) {
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 32px;
            }
            .section-title {
                font-size: 26px;
            }
            .container-main {
                padding: 0 16px;
            }
            .section-block {
                padding: 40px 0;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .metric-number {
                font-size: 32px;
            }
            .cta-card {
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .hero-section {
                padding: 32px 0 40px;
            }
            .hero-sub {
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 26px;
            }
            .section-title {
                font-size: 22px;
            }
            .metric-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 16px 14px;
            }
            .metric-number {
                font-size: 28px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
            }
            .content-card img {
                height: 160px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #FF5F1F;
            --primary-hover: #FFB347;
            --dark: #0D0D0D;
            --dark-card: #1A1A1A;
            --warm-bg: #F6F2ED;
            --white: #ffffff;
            --text-main: #1A1A1A;
            --text-muted: #6B6560;
            --text-light: #A8A29E;
            --border: #E5DFD8;
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(13, 13, 13, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(255, 95, 31, 0.12);
            --font-title: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 200ms ease;
            --transition-base: 300ms ease;
            --transition-slow: 400ms ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--warm-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: 240px;
            background: var(--dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.15);
        }

        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }

        .sidebar-brand:hover .brand-icon {
            background: var(--primary-hover);
        }

        .sidebar-brand .brand-text {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 18px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .sidebar-brand .brand-sub {
            color: var(--text-light);
            font-size: 11px;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            font-weight: 500;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav .nav-label {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 12px 12px 6px;
            font-weight: 500;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .sidebar-nav a:hover i {
            color: var(--primary-hover);
        }

        .sidebar-nav a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
            font-weight: 700;
        }

        .sidebar-nav a.active i {
            color: var(--primary);
        }

        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-footer p {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            line-height: 1.5;
            margin: 0;
        }

        .main-content {
            margin-left: 240px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 99;
            background: var(--dark);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
        }

        .mobile-topbar .brand {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 900;
            font-size: 16px;
            font-family: var(--font-title);
        }

        .mobile-topbar .brand-icon {
            width: 30px;
            height: 30px;
            background: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }

        .mobile-hamburger {
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: color var(--transition-fast);
        }

        .mobile-hamburger:hover {
            color: var(--primary-hover);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 200;
            background: rgba(0, 0, 0, 0.6);
        }

        .mobile-drawer.open {
            display: block;
        }

        .mobile-drawer .drawer-content {
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            background: var(--dark);
            padding: 20px 16px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 4px;
            box-shadow: 4px 0 30px rgba(0, 0, 0, 0.4);
        }

        .mobile-drawer .drawer-content a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .mobile-drawer .drawer-content a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .mobile-drawer .drawer-content a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
            font-weight: 700;
        }

        .mobile-drawer .drawer-content a i {
            width: 20px;
            text-align: center;
        }

        .drawer-close {
            display: flex;
            justify-content: flex-end;
            margin-bottom: 16px;
        }

        .drawer-close button {
            color: #fff;
            font-size: 24px;
            background: none;
            border: none;
            padding: 4px;
            transition: color var(--transition-fast);
        }

        .drawer-close button:hover {
            color: var(--primary-hover);
        }

        .page-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        .hero-band {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 32px 0 28px;
            position: relative;
            overflow: hidden;
        }

        .hero-band::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--primary-hover));
        }

        .hero-band .hero-flex {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
        }

        .hero-band .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 95, 31, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }

        .hero-band h1 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 40px;
            line-height: 1.25;
            margin: 12px 0 8px;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }

        .hero-band .hero-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 520px;
            line-height: 1.7;
        }

        .hero-band .hero-img {
            flex: 1;
            min-width: 280px;
            height: 180px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .hero-band .hero-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .section-block {
            padding: 44px 0;
        }

        .section-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 30px;
            line-height: 1.35;
            margin: 0 0 6px;
            color: var(--text-main);
            letter-spacing: -0.3px;
        }

        .section-sub {
            color: var(--text-muted);
            font-size: 15px;
            margin: 0 0 28px;
            max-width: 680px;
            line-height: 1.7;
        }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 8px;
        }

        .metric-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: all var(--transition-base);
            border: 1px solid var(--border);
        }

        .metric-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .metric-card:hover::after {
            transform: scaleX(1);
        }

        .metric-number {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 42px;
            line-height: 1.2;
            color: var(--primary);
            transition: transform var(--transition-base);
        }

        .metric-card:hover .metric-number {
            transform: translateY(-3px);
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(255, 95, 31, 0.25);
        }

        .service-card .card-img {
            height: 180px;
            overflow: hidden;
        }

        .service-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .service-card:hover .card-img img {
            transform: scale(1.04);
        }

        .service-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card .card-title {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 18px;
            color: var(--text-main);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .service-card .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 12px;
        }

        .service-card .card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }

        .service-card .card-link:hover {
            color: var(--primary-hover);
        }

        .compare-section {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        .compare-table th {
            background: var(--dark);
            color: #fff;
            font-weight: 600;
            padding: 14px 16px;
            text-align: left;
            font-size: 14px;
            letter-spacing: 0.5px;
        }

        .compare-table th:first-child {
            width: 25%;
        }

        .compare-table td {
            padding: 13px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text-main);
            vertical-align: top;
            line-height: 1.6;
        }

        .compare-table tr:nth-child(even) td {
            background: #FAF7F2;
        }

        .compare-table .highlight-col {
            border-left: 3px solid var(--primary);
            background: rgba(255, 95, 31, 0.04) !important;
            font-weight: 500;
        }

        .compare-table .label-cell {
            font-weight: 600;
            color: var(--dark);
        }

        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .tech-card {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 22px 20px;
            border: 1px solid var(--border);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .tech-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .tech-card .tech-icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 95, 31, 0.1);
            color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 12px;
            transition: all var(--transition-fast);
        }

        .tech-card:hover .tech-icon {
            background: var(--primary);
            color: #fff;
        }

        .tech-card .tech-title {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 17px;
            margin: 0 0 6px;
            color: var(--text-main);
        }

        .tech-card .tech-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 10px;
            flex: 1;
        }

        .tech-card .tech-date {
            font-size: 12px;
            color: var(--text-light);
            font-weight: 500;
        }

        .deep-article {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px 28px;
            border: 1px solid var(--border);
            margin-bottom: 20px;
        }

        .deep-article h2 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 24px;
            margin: 0 0 16px;
            color: var(--text-main);
            line-height: 1.4;
        }

        .deep-article p {
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .deep-article .article-img {
            height: 220px;
            border-radius: var(--radius-img);
            overflow: hidden;
            margin: 16px 0;
        }

        .deep-article .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .faq-section {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            border: 1px solid var(--border);
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 700;
            font-size: 15px;
            color: var(--text-main);
            cursor: pointer;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            background: rgba(255, 95, 31, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--primary);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(90deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            padding: 0 8px;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 8px 8px 4px;
        }

        .cta-section {
            background: var(--dark);
            border-radius: var(--radius-card);
            padding: 36px 28px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--primary-hover));
        }

        .cta-section h2 {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 26px;
            color: #fff;
            margin: 0 0 8px;
        }

        .cta-section .cta-desc {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr auto;
            gap: 12px;
            align-items: end;
        }

        .cta-form .form-group {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .cta-form label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .cta-form input,
        .cta-form select {
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 14px;
            transition: all var(--transition-fast);
            width: 100%;
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 3px rgba(255, 95, 31, 0.2);
        }

        .cta-form select option {
            background: var(--dark-card);
            color: #fff;
        }

        .cta-submit {
            padding: 10px 22px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .cta-submit:hover {
            background: var(--primary-hover);
            transform: scale(1.02);
            box-shadow: 0 4px 16px rgba(255, 179, 71, 0.3);
        }

        .privacy-note {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            margin-top: 12px;
        }

        .footer {
            background: var(--dark);
            color: #fff;
            padding: 40px 0 20px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 28px;
            margin-bottom: 28px;
        }

        .footer-brand-name {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 20px;
            color: #fff;
            margin-bottom: 8px;
        }

        .footer-brand-desc {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
            line-height: 1.7;
            max-width: 320px;
            margin: 0;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--primary-hover);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
            margin-right: 14px;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .flex-gap-4 {
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
        }

        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .page-container {
                padding: 0 20px;
            }
            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tech-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-form {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-band h1 {
                font-size: 32px;
            }
            .section-title {
                font-size: 26px;
            }
        }

        @media (max-width: 768px) {
            .page-container {
                padding: 0 16px;
            }
            .hero-band {
                padding: 24px 0 20px;
            }
            .hero-band h1 {
                font-size: 26px;
            }
            .hero-band .hero-flex {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-band .hero-img {
                width: 100%;
                min-width: auto;
                height: 150px;
            }
            .section-title {
                font-size: 22px;
            }
            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .metric-number {
                font-size: 30px;
            }
            .service-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .tech-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cta-form {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .compare-table {
                font-size: 12px;
            }
            .compare-table th,
            .compare-table td {
                padding: 10px 8px;
            }
            .deep-article {
                padding: 20px 16px;
            }
            .deep-article h2 {
                font-size: 20px;
            }
            .cta-section {
                padding: 24px 18px;
            }
            .cta-section h2 {
                font-size: 20px;
            }
            .faq-section {
                padding: 18px 14px;
            }
        }

        @media (max-width: 520px) {
            .page-container {
                padding: 0 12px;
            }
            .hero-band h1 {
                font-size: 22px;
            }
            .hero-band .hero-desc {
                font-size: 13px;
            }
            .metric-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 16px 14px;
            }
            .metric-number {
                font-size: 26px;
            }
            .section-title {
                font-size: 19px;
            }
            .section-sub {
                font-size: 13px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .deep-article p {
                font-size: 13px;
            }
            .tech-card .tech-title {
                font-size: 15px;
            }
            .service-card .card-title {
                font-size: 16px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #FF5F1F;
            --primary-hover: #FFB347;
            --dark: #0D0D0D;
            --dark-card: #1A1A1A;
            --warm-bg: #F6F2ED;
            --white: #ffffff;
            --text-main: #1A1A1A;
            --text-muted: #6B6560;
            --text-light: #A8A29E;
            --border: #E5DFD8;
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(13, 13, 13, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(255, 95, 31, 0.12);
            --font-title: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 200ms ease;
            --transition-base: 300ms ease;
            --transition-slow: 400ms ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--warm-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .main-content {
            margin-left: 240px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* 左侧竖向导航 */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 240px;
            background: var(--dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.15);
        }

        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }

        .sidebar-brand:hover .brand-icon {
            background: var(--primary-hover);
        }

        .sidebar-brand .brand-text {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 18px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .sidebar-brand .brand-sub {
            color: var(--text-light);
            font-size: 11px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav .nav-label {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 12px 12px 6px;
            font-weight: 500;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav a i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }

        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        .sidebar-nav a:hover i {
            color: var(--primary-hover);
        }

        .sidebar-nav a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
            font-weight: 700;
        }

        .sidebar-nav a.active i {
            color: var(--primary);
        }

        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-footer p {
            color: rgba(255, 255, 255, 0.35);
            font-size: 11px;
            line-height: 1.5;
        }

        /* 移动端顶部导航 */
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 99;
            background: var(--dark);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
        }

        .mobile-topbar .brand {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 900;
            font-size: 16px;
            font-family: var(--font-title);
        }

        .mobile-topbar .brand-icon {
            width: 30px;
            height: 30px;
            background: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }

        .mobile-hamburger {
            color: #fff;
            font-size: 20px;
            padding: 8px 10px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition-fast);
        }

        .mobile-hamburger:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        .mobile-menu {
            display: none;
            background: var(--dark);
            padding: 12px 16px;
            flex-direction: column;
            gap: 4px;
            position: sticky;
            top: 54px;
            z-index: 98;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(255, 95, 31, 0.18);
            color: #fff;
        }

        .mobile-menu a.active {
            font-weight: 700;
        }

        .mobile-menu a i {
            width: 18px;
            text-align: center;
        }

        /* 通用容器 */
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 80px 0;
        }

        .section-pad-sm {
            padding: 56px 0;
        }

        .section-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 36px;
            line-height: 1.3;
            color: var(--dark);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 640px;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head.center {
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .section-head.center .section-subtitle {
            margin: 0 auto;
        }

        /* Hero 区域 */
        .hero-danmaku {
            position: relative;
            background: var(--dark);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-danmaku .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }

        .hero-danmaku .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 13, 0.95) 0%, rgba(13, 13, 13, 0.75) 40%, rgba(255, 95, 31, 0.35) 100%);
        }

        .hero-danmaku .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 95, 31, 0.15);
            color: var(--primary-hover);
            border: 1px solid rgba(255, 95, 31, 0.35);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .hero-title {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 52px;
            line-height: 1.2;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: 16px;
        }

        .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            border: 2px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: scale(1.02);
            box-shadow: 0 8px 24px rgba(255, 95, 31, 0.35);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            border: 2px solid rgba(255, 255, 255, 0.4);
        }

        .btn-secondary:hover {
            border-color: var(--primary-hover);
            color: var(--primary-hover);
            background: rgba(255, 179, 71, 0.08);
        }

        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .btn-outline:focus-visible {
            outline: 3px solid var(--primary-hover);
            outline-offset: 2px;
        }

        /* 数据看板 */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .stat-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transition: transform var(--transition-base);
        }

        .stat-card:hover::after {
            transform: scaleX(1);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .stat-number {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 44px;
            line-height: 1.1;
            color: var(--dark);
            margin-bottom: 8px;
            transition: transform var(--transition-base);
        }

        .stat-card:hover .stat-number {
            transform: translateY(-4px);
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }

        /* 服务卡片 */
        .card-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .service-card-img {
            height: 200px;
            overflow: hidden;
            border-radius: 0;
        }

        .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
            border-radius: 0;
        }

        .service-card:hover .service-card-img img {
            transform: scale(1.05);
        }

        .service-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card-title {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 19px;
            color: var(--dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .service-card-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .service-card-date {
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .service-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .service-card-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }

        /* 对比结构 */
        .compare-wrap {
            background: var(--dark-card);
            border-radius: var(--radius-card);
            padding: 40px;
            position: relative;
            overflow: hidden;
        }

        .compare-wrap::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
            border-radius: 0 2px 2px 0;
        }

        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .compare-col {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-card);
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .compare-col.better {
            background: rgba(255, 95, 31, 0.08);
            border-color: rgba(255, 95, 31, 0.25);
        }

        .compare-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .compare-col.better .compare-label {
            color: var(--primary-hover);
            border-bottom-color: rgba(255, 95, 31, 0.3);
        }

        .compare-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            line-height: 1.7;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .compare-item:last-child {
            border-bottom: none;
        }

        .compare-item i {
            color: var(--text-light);
            font-size: 13px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .compare-col.better .compare-item i {
            color: var(--primary);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 15px;
            color: var(--dark);
            transition: all var(--transition-fast);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            color: var(--text-light);
            font-size: 14px;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(90deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* 表单 */
        .form-wrap {
            background: var(--warm-bg);
            border-radius: var(--radius-card);
            padding: 48px;
            max-width: 560px;
            margin: 0 auto;
            box-shadow: var(--shadow-card);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-input,
        .form-select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            background: var(--white);
            color: var(--text-main);
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .form-input:focus,
        .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 95, 31, 0.12);
        }

        .form-submit {
            width: 100%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .form-submit:hover {
            background: var(--primary-hover);
            transform: scale(1.02);
            box-shadow: 0 8px 24px rgba(255, 95, 31, 0.3);
        }

        .form-privacy {
            font-size: 12px;
            color: var(--text-light);
            text-align: center;
            margin-top: 12px;
        }

        /* 深色内容区块 */
        .section-dark {
            background: var(--dark);
            color: #fff;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        /* 流程 */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: flow;
        }

        .flow-item {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
        }

        .flow-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .flow-step {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 18px;
            margin: 0 auto 14px;
            transition: background var(--transition-fast);
        }

        .flow-item:hover .flow-step {
            background: var(--primary-hover);
        }

        .flow-name {
            font-weight: 700;
            font-size: 15px;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .flow-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 新闻列表 */
        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition-fast);
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover {
            padding-left: 8px;
        }

        .news-date {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--text-light);
            font-weight: 500;
            white-space: nowrap;
            padding-top: 2px;
        }

        .news-content {
            flex: 1;
        }

        .news-title {
            font-weight: 700;
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .news-btn {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition-fast);
        }

        .news-btn:hover {
            color: var(--primary-hover);
            gap: 8px;
        }

        /* 页脚 */
        .footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand-name {
            color: #fff;
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 22px;
            margin-bottom: 12px;
        }

        .footer-brand-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 340px;
        }

        .footer-col h5 {
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            padding: 5px 0;
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--primary-hover);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--primary-hover);
        }

        /* 长文内容 */
        .prose-content {
            max-width: 760px;
        }

        .prose-content p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .prose-content p strong {
            color: var(--text-main);
            font-weight: 600;
        }

        .prose-content .prose-quote {
            border-left: 3px solid var(--primary);
            padding: 12px 20px;
            background: rgba(255, 95, 31, 0.04);
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            margin: 20px 0;
            font-size: 14px;
            color: var(--text-main);
            font-weight: 500;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-topbar {
                display: flex;
            }

            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .card-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }

            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .compare-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .hero-title {
                font-size: 38px;
            }

            .section-title {
                font-size: 30px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .section-pad {
                padding: 56px 0;
            }

            .section-pad-sm {
                padding: 40px 0;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 32px;
            }

            .hero-desc {
                font-size: 15px;
            }

            .section-title {
                font-size: 26px;
            }

            .section-subtitle {
                font-size: 14px;
            }

            .card-grid-3 {
                grid-template-columns: 1fr;
            }

            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-number {
                font-size: 32px;
            }

            .flow-grid {
                grid-template-columns: 1fr;
            }

            .compare-wrap {
                padding: 24px;
            }

            .form-wrap {
                padding: 28px 20px;
            }

            .container-main {
                padding: 0 16px;
            }

            .news-item {
                flex-direction: column;
                gap: 8px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .section-pad {
                padding: 40px 0;
            }

            .section-pad-sm {
                padding: 32px 0;
            }

            .hero-actions {
                flex-direction: column;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 26px;
            }

            .section-title {
                font-size: 22px;
            }

            .stat-grid {
                grid-template-columns: 1fr;
            }

            .stat-number {
                font-size: 36px;
            }

            .container-main {
                padding: 0 12px;
            }
        }