/* roulang page: index */
:root {
            --primary: #16A34A;
            --primary-light: #4ADE80;
            --primary-soft: #86EFAC;
            --secondary: #22C55E;
            --accent: #F97316;
            --accent-deep: #EA580C;
            --dark: #18181B;
            --dark-soft: #1F1F23;
            --dark-card: #27272A;
            --light: #FAFAF9;
            --white: #FFFFFF;
            --border: #E4E4E7;
            --text: #27272A;
            --text-sub: #71717A;
            --text-placeholder: #A1A1AA;
            --text-disabled: #D4D4D8;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 10px rgba(24, 24, 27, 0.05);
            --shadow-hover: 0 16px 36px rgba(24, 24, 27, 0.12);
            --shadow-dark: 0 8px 24px rgba(0, 0, 0, 0.35);
            --sidebar-w: 72px;
            --content-max: 1200px;
            --spacer-y: 96px;
            --font-cn: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "DIN Alternate", "Barlow", "Roboto Mono", monospace;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text);
            background: var(--light);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
        }
        input,
        textarea {
            font-family: inherit;
        }
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container-page {
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 32px;
        }
        @media (max-width: 991.98px) {
            .container-page {
                padding: 0 24px;
            }
        }
        @media (max-width: 575.98px) {
            .container-page {
                padding: 0 16px;
            }
        }

        /* ---------- 左侧导航 App Shell ---------- */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-w);
            height: 100vh;
            background: var(--dark);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 20px 0;
            border-right: 1px solid rgba(255, 255, 255, 0.05);
        }
        .sidebar-logo {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: 24px;
            box-shadow: 0 4px 16px rgba(22, 163, 74, 0.4);
        }
        .sidebar-logo span {
            font-family: var(--font-num);
            font-size: 20px;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }
        .sidebar-nav-item {
            position: relative;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.55);
            font-size: 20px;
            transition: all 0.25s ease;
        }
        .sidebar-nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--primary-light);
        }
        .sidebar-nav-item.active {
            color: var(--primary-light);
            background: rgba(255, 255, 255, 0.06);
            border-left: 3px solid var(--primary-light);
            border-radius: 0 12px 12px 0;
            width: 44px;
            margin-left: 0;
            position: relative;
        }
        .sidebar-nav-item .tooltip-label {
            position: absolute;
            left: 64px;
            background: var(--dark);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.2s ease, transform 0.2s ease;
            transform: translateX(-6px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        }
        .sidebar-nav-item .tooltip-label::before {
            content: "";
            position: absolute;
            left: -5px;
            top: 50%;
            transform: translateY(-50%);
            border-top: 5px solid transparent;
            border-bottom: 5px solid transparent;
            border-right: 6px solid var(--dark);
        }
        .sidebar-nav-item:hover .tooltip-label {
            opacity: 1;
            transform: translateX(0);
        }
        .sidebar-contact {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.45);
            font-size: 18px;
            transition: all 0.25s ease;
            margin-top: auto;
        }
        .sidebar-contact:hover {
            color: var(--primary-light);
            background: rgba(255, 255, 255, 0.06);
        }
        .main-content {
            margin-left: var(--sidebar-w);
            min-height: 100vh;
            background: var(--light);
        }

        /* ---------- 移动端顶栏 ---------- */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--dark);
            z-index: 1050;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }
        .mobile-header .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
        }
        .mobile-header .mobile-logo .logo-badge {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-size: 14px;
            font-weight: 700;
            color: #fff;
        }
        .mobile-menu-btn {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            border-radius: 8px;
        }
        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            inset: 64px 0 0 0;
            background: var(--dark);
            z-index: 1045;
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer a.drawer-link {
            display: flex;
            align-items: center;
            gap: 14px;
            width: 100%;
            height: 56px;
            padding: 0 16px;
            border-radius: 12px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            font-weight: 500;
            transition: all 0.25s ease;
        }
        .mobile-drawer a.drawer-link i {
            width: 28px;
            text-align: center;
            font-size: 18px;
        }
        .mobile-drawer a.drawer-link:hover,
        .mobile-drawer a.drawer-link.active {
            background: rgba(255, 255, 255, 0.08);
            color: var(--primary-light);
        }
        .drawer-footer {
            margin-top: auto;
            padding: 16px 0 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.4);
            font-size: 13px;
            text-align: center;
        }
        body.drawer-open {
            overflow: hidden;
        }

        @media (max-width: 991.98px) {
            .app-sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-top: 64px;
            }
            .mobile-header {
                display: flex;
            }
            .mobile-drawer {
                display: flex;
            }
        }

        /* ---------- Hero ---------- */
        .hero-section {
            position: relative;
            min-height: 100vh;
            background: linear-gradient(135deg, #18181B 0%, #1E2B22 60%, #2D3A2E 100%);
            display: flex;
            align-items: center;
            padding: 64px 0;
            overflow: hidden;
        }
        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }
        .hero-section::after {
            content: "";
            position: absolute;
            top: -150px;
            left: -150px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(22, 163, 74, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-decor-circle {
            position: absolute;
            top: 18%;
            right: 8%;
            width: 180px;
            height: 180px;
            border: 2px solid rgba(74, 222, 128, 0.2);
            border-radius: 50%;
            transform: rotate(20deg);
            pointer-events: none;
        }
        .hero-section .container-page {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            width: 100%;
        }
        .hero-content .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(74, 222, 128, 0.1);
            border: 1px solid rgba(74, 222, 128, 0.25);
            color: var(--primary-light);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 24px;
        }
        .hero-content h1 {
            font-size: clamp(2.25rem, 5vw, 3.75rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.01em;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 20px;
        }
        .hero-content h1 .gradient-text {
            background: linear-gradient(90deg, #4ADE80, #86EFAC);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .hero-content .hero-subtitle {
            font-size: 1.0625rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            background: linear-gradient(135deg, #F97316, #EA580C);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            border: none;
            transition: all 0.25s ease;
            box-shadow: 0 4px 16px rgba(234, 88, 12, 0.25);
        }
        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(234, 88, 12, 0.35);
            color: #fff;
        }
        .btn-primary-custom:active {
            transform: scale(0.98);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            background: transparent;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: var(--radius-pill);
            transition: all 0.25s ease;
        }
        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }
        .btn-outline-custom:active {
            transform: scale(0.98);
        }
        .hero-visual {
            position: relative;
        }
        .hero-visual .main-img {
            width: 100%;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: var(--shadow-dark);
        }
        .floating-badge {
            position: absolute;
            background: rgba(24, 24, 27, 0.6);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        .floating-badge .badge-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(74, 222, 128, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary-light);
        }
        .floating-badge .badge-num {
            font-family: var(--font-num);
            font-size: 1.25rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary-light), var(--primary-soft));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
        }
        .floating-badge .badge-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.65);
            white-space: nowrap;
        }
        .badge-1 {
            top: -16px;
            right: 8%;
            transform: rotate(3deg);
        }
        .badge-2 {
            bottom: -14px;
            left: -6%;
            transform: rotate(-3deg);
        }

        /* ---------- 服务区块 ---------- */
        .section-padding {
            padding-top: var(--spacer-y);
            padding-bottom: var(--spacer-y);
        }
        .section-header {
            margin-bottom: 56px;
        }
        .section-header .section-tag {
            display: inline-block;
            background: rgba(22, 163, 74, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .section-header h2 {
            font-size: clamp(1.625rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-sub);
            font-size: 1rem;
            max-width: 620px;
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border);
            border-top: 4px solid rgba(22, 163, 74, 0.2);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-top-color: var(--primary);
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-card .service-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-md);
            background: #ECFDF5;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .service-card p {
            font-size: 0.9375rem;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .service-card.featured {
            transform: translateY(16px);
        }
        .service-card.featured:hover {
            transform: translateY(10px);
        }

        /* ---------- 统计/数据徽章 ---------- */
        .stats-section {
            background: var(--dark);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(22, 163, 74, 0.12) 0%, transparent 70%);
            transform: translate(-50%, -50%);
            pointer-events: none;
        }
        .stats-section .container-page {
            position: relative;
            z-index: 1;
        }
        .stats-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .stats-header h2 {
            font-size: clamp(1.625rem, 3vw, 2.375rem);
            font-weight: 700;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 12px;
        }
        .stats-header p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 1rem;
        }
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .stat-item {
            text-align: center;
            padding: 40px 24px;
            border-right: 1px solid rgba(255, 255, 255, 0.12);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-item .stat-num {
            font-family: var(--font-num);
            font-size: clamp(2rem, 3.2vw, 3.25rem);
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 8px;
            letter-spacing: 0.05em;
        }

        /* ---------- 案例区块 ---------- */
        .cases-section {
            padding: var(--spacer-y) 0;
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.35s ease;
        }
        .case-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .case-card .case-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .case-card:hover .case-img {
            transform: scale(1.04);
        }
        .case-card .case-body {
            padding: 24px;
        }
        .case-card .case-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(22, 163, 74, 0.08);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            display: inline-block;
            margin-bottom: 12px;
        }
        .case-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .case-card p {
            font-size: 0.9375rem;
            color: var(--text-sub);
            line-height: 1.65;
            margin-bottom: 12px;
        }
        .case-card .case-link {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--primary);
        }
        .case-card .case-link:hover {
            color: var(--accent);
        }

        /* ---------- 方案区块 ---------- */
        .solutions-section {
            padding: 0 0 var(--spacer-y);
        }
        .solution-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
            margin-bottom: 80px;
        }
        .solution-row:last-child {
            margin-bottom: 0;
        }
        .solution-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }
        .solution-img img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .solution-content h3 {
            font-size: 1.625rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.35;
        }
        .solution-content p {
            font-size: 1rem;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 24px;
        }
        .solution-content ul {
            list-style: none;
            padding: 0;
            margin-bottom: 28px;
        }
        .solution-content ul li {
            padding: 6px 0;
            padding-left: 24px;
            position: relative;
            color: var(--text);
            font-size: 0.9375rem;
        }
        .solution-content ul li::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 14px;
            width: 8px;
            height: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 2px;
        }
        .solution-content .btn-solution {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--dark);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            transition: all 0.25s ease;
        }
        .solution-content .btn-solution:hover {
            background: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(22, 163, 74, 0.3);
        }
        .solution-row.reverse .solution-img {
            order: 2;
        }
        .solution-row.reverse .solution-content {
            order: 1;
        }
        @media (max-width: 991.98px) {
            .solution-row,
            .solution-row.reverse {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .solution-row.reverse .solution-img {
                order: 1;
            }
            .solution-row.reverse .solution-content {
                order: 2;
            }
        }

        /* ---------- 最新资讯 ---------- */
        .news-section {
            padding: var(--spacer-y) 0;
            background: var(--light);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .news-card .post-category {
            align-self: flex-start;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            margin-bottom: 14px;
            transition: all 0.25s ease;
        }
        .news-card:hover .post-category {
            background: rgba(22, 163, 74, 0.1);
        }
        .news-card h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--dark);
            line-height: 1.5;
            margin-bottom: 10px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-card h3 a {
            color: inherit;
        }
        .news-card h3 a:hover {
            color: var(--primary);
        }
        .news-card .post-excerpt {
            font-size: 0.875rem;
            color: var(--text-sub);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            margin-bottom: 16px;
        }
        .news-card .post-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-placeholder);
        }
        .news-card .post-meta a {
            color: var(--primary);
            font-weight: 600;
        }
        .news-card .post-meta a:hover {
            color: var(--accent);
        }
        .news-empty-state {
            border: 2px dashed var(--text-disabled);
            background: var(--light);
            border-radius: var(--radius-lg);
            padding: 60px 32px;
            text-align: center;
        }
        .news-empty-state .empty-icon {
            font-size: 40px;
            color: var(--text-disabled);
            margin-bottom: 16px;
        }
        .news-empty-state .empty-title {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text-sub);
            margin-bottom: 6px;
        }
        .news-empty-state .empty-sub {
            font-size: 0.875rem;
            color: var(--text-placeholder);
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            padding: var(--spacer-y) 0;
            background: var(--light);
        }
        .accordion-custom .accordion-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            box-shadow: 0 2px 8px rgba(24, 24, 27, 0.05);
            overflow: hidden;
        }
        .accordion-custom .accordion-button {
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            background: var(--white);
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: none;
            border-radius: var(--radius-md);
            width: 100%;
            text-align: left;
            transition: color 0.2s ease;
        }
        .accordion-custom .accordion-button::after {
            content: "\2B";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 16px;
            width: 28px;
            height: 28px;
            background: #ECFDF5;
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: none;
            transition: all 0.3s ease;
            flex-shrink: 0;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--dark);
            background: var(--white);
            box-shadow: none;
        }
        .accordion-custom .accordion-button:not(.collapsed)::after {
            content: "\D7";
            background: var(--primary);
            color: #fff;
        }
        .accordion-custom .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-sub);
            font-size: 0.9375rem;
            line-height: 1.75;
            border-left: 4px solid var(--primary);
            margin: 0 24px 20px;
            border-radius: 0 8px 8px 0;
            background: rgba(22, 163, 74, 0.02);
            padding-top: 12px;
        }
        .faq-more {
            text-align: center;
            margin-top: 32px;
            font-size: 0.9375rem;
            color: var(--text-sub);
        }
        .faq-more a {
            color: var(--primary);
            font-weight: 600;
        }
        .faq-more a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        /* ---------- CTA / 联系横幅 ---------- */
        .contact-cta {
            background: linear-gradient(120deg, #16A34A 0%, #22C55E 45%, #F97316 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .contact-cta::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 36px 36px;
            pointer-events: none;
        }
        .contact-cta .container-page {
            position: relative;
            z-index: 1;
        }
        .contact-cta h2 {
            font-size: clamp(1.625rem, 3vw, 2.375rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .contact-cta p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            margin-bottom: 32px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-white-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            background: #fff;
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            transition: all 0.25s ease;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }
        .btn-white-cta:hover {
            background: var(--border);
            transform: translateY(-2px);
            color: var(--primary);
        }
        .btn-white-cta:active {
            transform: scale(0.98);
        }
        .contact-info-row {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .contact-info-item {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            font-size: 0.9375rem;
        }
        .contact-info-item i {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.9);
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: var(--dark);
            padding-top: 64px;
            padding-bottom: 32px;
        }
        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-wrap: wrap;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.125rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .footer-logo .logo-badge {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-size: 14px;
            font-weight: 700;
            color: #fff;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.875rem;
            max-width: 300px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-links-group {
            display: flex;
            gap: 64px;
            flex-wrap: wrap;
        }
        .footer-links-group .link-col h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 16px;
        }
        .footer-links-group .link-col a {
            display: block;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.45);
            padding: 4px 0;
            transition: color 0.2s ease;
        }
        .footer-links-group .link-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 32px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.3);
            line-height: 1.8;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1199.98px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-card.featured {
                transform: none;
            }
            .service-card.featured:hover {
                transform: translateY(-6px);
            }
        }
        @media (max-width: 991.98px) {
            :root {
                --spacer-y: 64px;
            }
            .hero-section {
                padding-top: 32px;
                padding-bottom: 48px;
            }
            .hero-section .container-page {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-content {
                text-align: center;
            }
            .hero-content .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-visual {
                max-width: 520px;
                margin: 0 auto;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item {
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .stat-item:nth-child(odd) {
                border-right: 1px solid rgba(255, 255, 255, 0.12);
            }
            .stat-item:nth-child(even) {
                border-right: none;
            }
            .stat-item:nth-child(n+3) {
                border-bottom: none;
            }
            .cases-grid {
                grid-template-columns: 1fr;
                max-width: 560px;
                margin: 0 auto;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                flex-direction: column;
                gap: 32px;
            }
            .contact-info-row {
                gap: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .hero-section {
                min-height: 92vh;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn-primary-custom,
            .hero-cta-group .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item .stat-num {
                font-size: 1.875rem;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .solution-content h3 {
                font-size: 1.375rem;
            }
            .contact-info-row {
                flex-direction: column;
                align-items: center;
            }
            .footer-links-group {
                gap: 32px;
            }
        }
        @media (max-width: 380px) {
            .floating-badge {
                padding: 8px 12px;
                gap: 8px;
            }
            .floating-badge .badge-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .floating-badge .badge-num {
                font-size: 1rem;
            }
            .floating-badge .badge-label {
                font-size: 10px;
            }
        }

/* roulang page: category1 */
:root {
        --primary: #16A34A;
        --primary-light: #4ADE80;
        --primary-soft: #86EFAC;
        --primary-deep: #15803D;
        --accent: #F97316;
        --accent-dark: #EA580C;
        --dark: #18181B;
        --dark-2: #1F1F23;
        --dark-3: #27272A;
        --light: #FAFAF9;
        --white: #FFFFFF;
        --border: #E4E4E7;
        --text: #27272A;
        --text-secondary: #71717A;
        --muted: #A1A1AA;
        --muted-2: #D4D4D8;
        --radius-lg: 24px;
        --radius-md: 16px;
        --radius-sm: 8px;
        --shadow-sm: 0 2px 10px rgba(24, 24, 27, 0.05);
        --shadow-md: 0 16px 36px rgba(24, 24, 27, 0.12);
        --sidebar-w: 72px;
        --font-sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        --font-num: "DIN Alternate", "Barlow", "Roboto Mono", monospace;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-sans);
        background: var(--light);
        color: var(--text);
        line-height: 1.75;
        font-size: 1rem;
        -webkit-font-smoothing: antialiased;
    }

    img {
        max-width: 100%;
        display: block;
    }

    a {
        text-decoration: none;
        color: inherit;
        transition: color 0.25s ease;
    }

    a:hover {
        text-decoration: none;
    }

    button {
        border: none;
        background: none;
        font-family: inherit;
        cursor: pointer;
    }

    ul,
    ol {
        list-style: none;
    }

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

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

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: var(--sidebar-w);
        height: 100vh;
        background: var(--dark);
        z-index: 1030;
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 20px 0 16px;
        border-right: 1px solid rgba(255, 255, 255, 0.06);
    }

    .sidebar-logo {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        box-shadow: 0 4px 16px rgba(22, 163, 74, 0.35);
        margin-bottom: 32px;
        flex-shrink: 0;
        transition: transform 0.25s ease;
    }

    .sidebar-logo:hover {
        transform: scale(1.06);
    }

    .sidebar-logo .logo-badge {
        font-size: 1.25rem;
        font-weight: 800;
        color: #fff;
        letter-spacing: -0.02em;
    }

    .sidebar-nav {
        display: flex;
        flex-direction: column;
        gap: 8px;
        width: 100%;
        align-items: center;
        flex: 1;
    }

    .sidebar-nav-item {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 12px;
        color: rgba(255, 255, 255, 0.6);
        font-size: 1.25rem;
        transition: background 0.25s ease, color 0.25s ease;
    }

    .sidebar-nav-item:hover {
        background: rgba(255, 255, 255, 0.06);
        color: var(--primary-light);
    }

    .sidebar-nav-item.active {
        background: rgba(255, 255, 255, 0.06);
        color: var(--primary-light);
    }

    .sidebar-nav-item.active::before {
        content: '';
        position: absolute;
        left: -14px;
        top: 12px;
        width: 3px;
        height: 20px;
        border-radius: 99px;
        background: var(--primary-light);
    }

    .tooltip-label {
        position: absolute;
        left: 58px;
        top: 50%;
        transform: translateY(-50%);
        background: var(--dark-2);
        color: #fff;
        padding: 6px 14px;
        border-radius: 8px;
        font-size: 0.8125rem;
        white-space: nowrap;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.2s ease, visibility 0.2s ease;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        z-index: 10;
    }

    .tooltip-label::before {
        content: '';
        position: absolute;
        left: -5px;
        top: 50%;
        transform: translateY(-50%);
        border-top: 5px solid transparent;
        border-bottom: 5px solid transparent;
        border-right: 5px solid var(--dark-2);
    }

    .sidebar-nav-item:hover .tooltip-label {
        opacity: 1;
        visibility: visible;
    }

    .sidebar-footer {
        padding-top: 12px;
    }

    .main-content {
        margin-left: var(--sidebar-w);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    .mobile-header {
        display: none;
    }

    .mobile-drawer {
        display: none;
    }

    .page-hero {
        position: relative;
        min-height: 480px;
        display: flex;
        align-items: center;
        background: linear-gradient(135deg, #18181B 0%, #1E2B22 60%, #2D3A2E 100%);
        background-image: linear-gradient(rgba(24, 24, 27, 0.82), rgba(24, 24, 27, 0.82)), url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        padding: 96px 0 88px;
        overflow: hidden;
    }

    .page-hero::before {
        content: '';
        position: absolute;
        top: -120px;
        left: -120px;
        width: 480px;
        height: 480px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(74, 222, 128, 0.18), transparent 65%);
        pointer-events: none;
    }

    .page-hero::after {
        content: '';
        position: absolute;
        bottom: -60px;
        right: 8%;
        width: 280px;
        height: 280px;
        border-radius: 50%;
        border: 2px solid rgba(255, 255, 255, 0.06);
        transform: rotate(18deg);
        pointer-events: none;
    }

    .hero-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 6px 18px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.14);
        border-radius: 999px;
        color: rgba(255, 255, 255, 0.75);
        font-size: 0.875rem;
        margin-bottom: 20px;
    }

    .hero-label i {
        color: var(--primary-light);
        font-size: 0.8125rem;
    }

    .page-hero h1 {
        font-size: clamp(2.25rem, 5vw, 3.75rem);
        line-height: 1.15;
        font-weight: 800;
        letter-spacing: -0.01em;
        color: rgba(255, 255, 255, 0.92);
        margin-bottom: 20px;
    }

    .page-hero h1 .highlight {
        background: linear-gradient(90deg, var(--primary-light), var(--primary-soft));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .page-hero .hero-desc {
        font-size: 1.0625rem;
        color: rgba(255, 255, 255, 0.78);
        max-width: 640px;
        margin-bottom: 36px;
        line-height: 1.8;
    }

    .hero-actions {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
    }

    .btn-custom-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 14px 32px;
        border-radius: 999px;
        background: linear-gradient(135deg, var(--accent), var(--accent-dark));
        color: #fff;
        font-weight: 600;
        font-size: 0.9375rem;
        transition: all 0.25s ease;
        box-shadow: 0 4px 14px rgba(234, 88, 12, 0.25);
        border: none;
    }

    .btn-custom-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 24px rgba(234, 88, 12, 0.35);
        color: #fff;
    }

    .btn-custom-ghost {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 14px 32px;
        border-radius: 999px;
        background: transparent;
        border: 1px solid rgba(255, 255, 255, 0.4);
        color: rgba(255, 255, 255, 0.9);
        font-weight: 600;
        font-size: 0.9375rem;
        transition: all 0.25s ease;
    }

    .btn-custom-ghost:hover {
        background: rgba(255, 255, 255, 0.08);
        color: #fff;
        border-color: rgba(255, 255, 255, 0.6);
    }

    .section {
        padding-top: 96px;
        padding-bottom: 96px;
    }

    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--primary);
        font-weight: 600;
        font-size: 0.875rem;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        margin-bottom: 12px;
    }

    .section-label::before {
        content: '';
        width: 18px;
        height: 2px;
        background: linear-gradient(90deg, var(--primary), var(--primary-light));
        border-radius: 99px;
    }

    .section-title {
        font-size: clamp(1.625rem, 3vw, 2.5rem);
        font-weight: 700;
        line-height: 1.2;
        letter-spacing: -0.01em;
        color: var(--dark);
        margin-bottom: 16px;
    }

    .section-desc {
        font-size: 1.0625rem;
        color: var(--text-secondary);
        max-width: 640px;
        line-height: 1.75;
    }

    .split-section {
        padding-top: 96px;
        padding-bottom: 96px;
        background: var(--white);
    }

    .split-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 64px;
        align-items: center;
    }

    .split-image {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-md);
    }

    .split-image img {
        width: 100%;
        height: 420px;
        object-fit: cover;
        border-radius: var(--radius-lg);
    }

    .split-image::after {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: var(--radius-lg);
        border: 1px solid rgba(255, 255, 255, 0.15);
        pointer-events: none;
    }

    .split-content h3 {
        font-size: 1.375rem;
        font-weight: 700;
        color: var(--dark);
        margin-bottom: 16px;
        line-height: 1.4;
    }

    .split-content p {
        color: var(--text-secondary);
        margin-bottom: 22px;
        line-height: 1.8;
        font-size: 1.0625rem;
    }

    .split-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 20px;
    }

    .split-tags span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 16px;
        background: #F0FDF4;
        color: var(--primary-deep);
        border-radius: 999px;
        font-size: 0.8125rem;
        font-weight: 500;
        border: 1px solid rgba(22, 163, 74, 0.12);
    }

    .split-tags i {
        font-size: 0.75rem;
        color: var(--primary);
    }

    .steps-section {
        background: var(--dark);
        padding-top: 96px;
        padding-bottom: 96px;
        position: relative;
        overflow: hidden;
    }

    .steps-section::before {
        content: '';
        position: absolute;
        top: -100px;
        right: -100px;
        width: 400px;
        height: 400px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(74, 222, 128, 0.1), transparent 65%);
        pointer-events: none;
    }

    .steps-section .section-title {
        color: rgba(255, 255, 255, 0.92);
    }

    .steps-section .section-desc {
        color: rgba(255, 255, 255, 0.65);
    }

    .steps-section .section-label {
        color: var(--primary-light);
    }

    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        margin-top: 48px;
    }

    .step-card {
        background: var(--dark-2);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--radius-md);
        padding: 32px 24px;
        position: relative;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .step-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    }

    .step-number {
        font-family: var(--font-num);
        font-size: 2.25rem;
        font-weight: 700;
        background: linear-gradient(135deg, var(--primary-light), var(--primary-soft));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        margin-bottom: 12px;
        display: block;
    }

    .step-card h4 {
        color: rgba(255, 255, 255, 0.9);
        font-size: 1.0625rem;
        font-weight: 600;
        margin-bottom: 10px;
    }

    .step-card p {
        color: rgba(255, 255, 255, 0.55);
        font-size: 0.875rem;
        line-height: 1.65;
    }

    .step-icon {
        position: absolute;
        top: 24px;
        right: 24px;
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.06);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary-light);
        font-size: 1rem;
    }

    .points-section {
        padding-top: 96px;
        padding-bottom: 96px;
        background: var(--light);
    }

    .points-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 48px 64px;
        margin-top: 48px;
    }

    .point-item {
        display: flex;
        gap: 16px;
    }

    .point-sq {
        width: 10px;
        height: 10px;
        background: linear-gradient(135deg, var(--primary), var(--primary-light));
        border-radius: 3px;
        margin-top: 10px;
        flex-shrink: 0;
    }

    .point-item h4 {
        font-size: 1.0625rem;
        font-weight: 600;
        color: var(--dark);
        margin-bottom: 6px;
    }

    .point-item p {
        color: var(--text-secondary);
        font-size: 0.9375rem;
        line-height: 1.7;
    }

    .scenarios-section {
        padding-top: 96px;
        padding-bottom: 96px;
        background: var(--white);
    }

    .scenario-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        margin-top: 48px;
    }

    .scenario-card {
        border-radius: var(--radius-lg);
        overflow: hidden;
        background: var(--dark-2);
        border: 1px solid rgba(255, 255, 255, 0.08);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        position: relative;
    }

    .scenario-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 16px 36px rgba(24, 24, 27, 0.25);
    }

    .scenario-card img {
        width: 100%;
        height: 200px;
        object-fit: cover;
    }

    .scenario-card .scenario-body {
        padding: 28px;
    }

    .scenario-card h4 {
        color: rgba(255, 255, 255, 0.9);
        font-size: 1.125rem;
        font-weight: 600;
        margin-bottom: 8px;
    }

    .scenario-card p {
        color: rgba(255, 255, 255, 0.55);
        font-size: 0.875rem;
        line-height: 1.65;
        margin-bottom: 14px;
    }

    .scenario-tag {
        display: inline-block;
        padding: 4px 12px;
        background: rgba(74, 222, 128, 0.12);
        color: var(--primary-light);
        border-radius: 999px;
        font-size: 0.75rem;
        font-weight: 500;
    }

    .faq-section {
        padding-top: 96px;
        padding-bottom: 96px;
        background: var(--light);
    }

    .faq-wrap {
        max-width: 860px;
        margin: 0 auto;
        margin-top: 48px;
    }

    .faq-item {
        background: var(--white);
        border-radius: var(--radius-md);
        margin-bottom: 16px;
        box-shadow: var(--shadow-sm);
        overflow: hidden;
        border: 1px solid var(--border);
        transition: box-shadow 0.3s ease;
    }

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

    .faq-question {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 24px;
        font-weight: 600;
        color: var(--dark);
        font-size: 1rem;
        background: var(--white);
        transition: background 0.2s ease;
        text-align: left;
    }

    .faq-question:hover {
        background: #F8FAF9;
    }

    .faq-figure {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: #ECFDF5;
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.875rem;
        font-weight: 700;
        flex-shrink: 0;
        transition: background 0.25s ease, color 0.25s ease;
    }

    .faq-item.open .faq-figure {
        background: var(--primary);
        color: #fff;
    }

    .faq-answer {
        padding: 0 24px 20px;
        color: var(--text-secondary);
        font-size: 0.9375rem;
        line-height: 1.7;
        border-left: 4px solid var(--primary);
        margin-left: 24px;
        display: none;
        padding-left: 20px;
    }

    .faq-item.open .faq-answer {
        display: block;
    }

    .faq-more {
        text-align: center;
        margin-top: 32px;
    }

    .faq-more a {
        color: var(--primary);
        font-weight: 500;
        font-size: 0.9375rem;
    }

    .faq-more a:hover {
        text-decoration: underline;
    }

    .cta-section {
        position: relative;
        padding: 80px 0;
        background: linear-gradient(120deg, var(--primary) 0%, #22C55E 45%, var(--accent) 100%);
        text-align: center;
        overflow: hidden;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        top: -80px;
        left: 10%;
        width: 300px;
        height: 300px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.08);
        pointer-events: none;
    }

    .cta-section h2 {
        color: #fff;
        font-size: clamp(1.625rem, 3vw, 2.5rem);
        font-weight: 700;
        margin-bottom: 16px;
        position: relative;
    }

    .cta-section p {
        color: rgba(255, 255, 255, 0.85);
        font-size: 1.0625rem;
        max-width: 560px;
        margin: 0 auto 32px;
        position: relative;
    }

    .btn-white {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 14px 36px;
        background: #fff;
        color: var(--primary);
        border-radius: 999px;
        font-weight: 600;
        font-size: 0.9375rem;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
        transition: all 0.25s ease;
        position: relative;
    }

    .btn-white:hover {
        background: #E4E4E7;
        transform: translateY(-2px);
        color: var(--primary-deep);
    }

    .cta-contact {
        display: flex;
        justify-content: center;
        gap: 48px;
        margin-top: 40px;
        position: relative;
        flex-wrap: wrap;
    }

    .cta-contact .contact-item {
        color: rgba(255, 255, 255, 0.85);
        font-size: 0.875rem;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .cta-contact .contact-item i {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.15);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.8125rem;
    }

    .site-footer {
        background: var(--dark);
        padding-top: 64px;
        padding-bottom: 32px;
    }

    .footer-top {
        display: grid;
        grid-template-columns: 1.4fr 2fr;
        gap: 48px;
        padding-bottom: 48px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-logo {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 1.375rem;
        font-weight: 700;
        color: rgba(255, 255, 255, 0.9);
        margin-bottom: 12px;
    }

    .footer-logo .logo-badge {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.875rem;
        font-weight: 800;
        color: #fff;
    }

    .footer-brand p {
        color: rgba(255, 255, 255, 0.45);
        font-size: 0.875rem;
        max-width: 280px;
        line-height: 1.7;
    }

    .footer-links-group {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }

    .link-col h4 {
        color: rgba(255, 255, 255, 0.75);
        font-size: 0.9375rem;
        font-weight: 600;
        margin-bottom: 14px;
    }

    .link-col a {
        display: block;
        color: rgba(255, 255, 255, 0.4);
        font-size: 0.875rem;
        padding: 4px 0;
        transition: color 0.2s ease;
    }

    .link-col a:hover {
        color: #fff;
    }

    .footer-bottom {
        text-align: center;
        padding-top: 24px;
        color: rgba(255, 255, 255, 0.3);
        font-size: 0.75rem;
        line-height: 1.8;
    }

    .footer-bottom a {
        color: rgba(255, 255, 255, 0.3);
    }

    .footer-bottom a:hover {
        color: rgba(255, 255, 255, 0.6);
    }

    .back-home {
        text-align: center;
        margin-top: 64px;
    }

    .back-home a {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--primary);
        font-weight: 500;
        font-size: 0.9375rem;
        padding: 10px 24px;
        border-radius: 999px;
        border: 1px solid rgba(22, 163, 74, 0.25);
        transition: all 0.25s ease;
        background: #F0FDF4;
    }

    .back-home a:hover {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
        transform: translateY(-2px);
    }

    .back-home i {
        font-size: 0.8125rem;
    }

    @media (max-width: 991.98px) {
        .sidebar {
            display: none;
        }

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

        .mobile-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            background: var(--dark);
            padding: 0 20px;
            position: sticky;
            top: 0;
            z-index: 1020;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.0625rem;
            font-weight: 700;
        }

        .mobile-logo .logo-badge {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.8125rem;
            font-weight: 800;
        }

        .hamburger-btn {
            width: 44px;
            height: 44px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: 10px;
            transition: background 0.2s ease;
        }

        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .hamburger-btn span {
            width: 20px;
            height: 2px;
            background: rgba(255, 255, 255, 0.8);
            border-radius: 99px;
            transition: all 0.3s ease;
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            display: block;
            position: fixed;
            top: 64px;
            left: 0;
            width: 100%;
            height: calc(100vh - 64px);
            background: var(--dark);
            z-index: 1010;
            padding: 24px 20px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .drawer-nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            border-radius: 12px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 1rem;
            min-height: 56px;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .drawer-nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.9);
        }

        .drawer-nav-item.active {
            background: rgba(74, 222, 128, 0.12);
            color: var(--primary-light);
        }

        .drawer-nav-item i {
            width: 28px;
            text-align: center;
            font-size: 1.125rem;
        }

        .drawer-contact {
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.8125rem;
            line-height: 2;
        }

        .split-grid {
            grid-template-columns: 1fr;
            gap: 48px;
        }

        .split-image img {
            height: 320px;
        }

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

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

        .scenario-grid {
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .footer-top {
            grid-template-columns: 1fr;
        }

        .footer-links-group {
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .container-page {
            padding-left: 24px;
            padding-right: 24px;
        }
    }

    @media (max-width: 767.98px) {
        .section {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        .split-section,
        .points-section,
        .steps-section,
        .scenarios-section,
        .faq-section {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        .page-hero {
            min-height: auto;
            padding: 72px 0 56px;
        }

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

        .hero-actions .btn-custom-primary,
        .hero-actions .btn-custom-ghost {
            width: 100%;
            justify-content: center;
        }

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

        .scenario-card img {
            height: 180px;
        }

        .cta-contact {
            gap: 16px;
            flex-direction: column;
            align-items: center;
        }

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

        .cta-section {
            padding: 64px 0;
        }

        .split-image img {
            height: 260px;
        }

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

    @media (max-width: 575.98px) {
        .container-page {
            padding-left: 16px;
            padding-right: 16px;
        }

        .page-hero h1 {
            font-size: 2rem;
        }

        .hero-actions .btn-custom-primary,
        .hero-actions .btn-custom-ghost {
            padding: 14px 20px;
        }

        .footer-links-group {
            grid-template-columns: 1fr;
        }

        .faq-question {
            padding: 18px 16px;
            font-size: 0.9375rem;
        }

        .faq-answer {
            padding-left: 16px;
            margin-left: 16px;
        }

        .btn-white {
            width: 100%;
            justify-content: center;
        }
    }

/* roulang page: article */
:root {
            --primary: #16A34A;
            --primary-light: #4ADE80;
            --primary-grad: linear-gradient(135deg, #16A34A, #4ADE80);
            --accent: #F97316;
            --accent-deep: #EA580C;
            --accent-grad: linear-gradient(135deg, #F97316, #EA580C);
            --dark-bg: #18181B;
            --dark-bg-2: #1F1F23;
            --dark-bg-3: #27272A;
            --light-bg: #FAFAF9;
            --card-bg: #FFFFFF;
            --border: #E4E4E7;
            --text-main: #27272A;
            --text-sub: #71717A;
            --text-placeholder: #A1A1AA;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(24, 24, 27, 0.05);
            --shadow-md: 0 8px 24px rgba(24, 24, 27, 0.1);
            --shadow-lg: 0 16px 36px rgba(24, 24, 27, 0.12);
            --sidebar-w: 72px;
            --mobile-header-h: 64px;
            --font-cn: 'PingFang SC', 'HarmonyOS Sans SC', 'MiSans', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'DIN Alternate', 'Barlow', 'Roboto Mono', monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            line-height: 1.75;
            background: var(--light-bg);
            color: var(--text-main);
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }

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

        /* ===== 布局容器 ===== */
        .main-wrapper {
            margin-left: var(--sidebar-w);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--light-bg);
        }

        .main-content {
            flex: 1;
        }

        .container-article {
            max-width: 860px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        .wrap {
            max-width: 860px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* ===== 左侧导航栏 ===== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-w);
            height: 100vh;
            background: var(--dark-bg);
            z-index: 1030;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 16px 0 24px;
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            margin-bottom: 32px;
            border-radius: 50%;
            background: var(--primary-grad);
            box-shadow: 0 4px 16px rgba(22, 163, 74, 0.4);
        }

        .logo-badge {
            font-family: var(--font-num);
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            width: 100%;
            align-items: center;
            flex: 1;
        }

        .sidebar-nav-item {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 1.2rem;
            transition: all 0.25s ease;
        }

        .sidebar-nav-item i {
            transition: transform 0.2s ease;
        }

        .sidebar-nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--primary-light);
        }

        .sidebar-nav-item:hover i {
            transform: scale(1.1);
        }

        .sidebar-nav-item.active {
            background: rgba(255, 255, 255, 0.06);
            color: var(--primary-light);
        }

        .sidebar-nav-item.active::before {
            content: '';
            position: absolute;
            left: -2px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            border-radius: 999px;
            background: var(--primary-light);
        }

        .tooltip-label {
            position: absolute;
            left: 60px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--dark-bg);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.2s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .tooltip-label::before {
            content: '';
            position: absolute;
            left: -4px;
            top: 50%;
            transform: translateY(-50%);
            width: 8px;
            height: 8px;
            background: var(--dark-bg);
            border-radius: 2px;
            rotate: 45deg;
        }

        .sidebar-nav-item:hover .tooltip-label {
            opacity: 1;
            visibility: visible;
            left: 56px;
        }

        .sidebar-bottom {
            display: flex;
            justify-content: center;
            width: 100%;
        }

        .sidebar-bottom .sidebar-nav-item {
            color: rgba(255, 255, 255, 0.4);
        }

        .sidebar-bottom .sidebar-nav-item:hover {
            color: var(--accent);
        }

        /* ===== 移动端顶栏 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--mobile-header-h);
            background: var(--dark-bg);
            z-index: 1040;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .mobile-logo .logo-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary-grad);
            font-size: 1rem;
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            width: 44px;
            height: 44px;
            padding: 10px;
            border-radius: 10px;
            align-items: center;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: rgba(255, 255, 255, 0.8);
            border-radius: 999px;
            transition: all 0.3s ease;
        }

        .hamburger:hover span {
            background: var(--primary-light);
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* ===== 移动端抽屉 ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--dark-bg);
            z-index: 1050;
            padding: 24px;
            flex-direction: column;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
        }

        .drawer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 1.15rem;
        }

        .drawer-logo .logo-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-grad);
            font-size: 1.05rem;
        }

        .drawer-close {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.3rem;
        }

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

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .drawer-nav-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 20px;
            border-radius: 14px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            font-weight: 500;
            min-height: 56px;
            transition: all 0.2s ease;
        }

        .drawer-nav-item i {
            font-size: 1.2rem;
            width: 28px;
            text-align: center;
        }

        .drawer-nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--primary-light);
        }

        .drawer-nav-item.active {
            background: rgba(255, 255, 255, 0.06);
            color: var(--primary-light);
        }

        .drawer-footer {
            margin-top: auto;
            padding: 20px 0;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.875rem;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 32px 0 0;
        }

        .custom-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.875rem;
            color: var(--text-sub);
        }

        .custom-breadcrumb li {
            display: flex;
            align-items: center;
        }

        .custom-breadcrumb li a {
            color: var(--text-sub);
            transition: color 0.2s ease;
        }

        .custom-breadcrumb li a:hover {
            color: var(--primary);
        }

        .custom-breadcrumb li.active {
            color: var(--dark-bg);
            font-weight: 600;
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .custom-breadcrumb li + li::before {
            content: '/';
            margin: 0 10px;
            color: var(--text-placeholder);
        }

        /* ===== 文章头部 ===== */
        .article-header {
            padding: 40px 0 32px;
        }

        .article-header h1 {
            font-size: clamp(1.75rem, 3.5vw, 2.75rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark-bg);
            letter-spacing: -0.01em;
            margin-bottom: 24px;
            word-break: break-word;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-sub);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-item i {
            font-size: 0.875rem;
            color: var(--text-placeholder);
        }

        .meta-dot {
            color: var(--text-placeholder);
            margin: 0 4px;
        }

        /* ===== 正文阅读区 ===== */
        .article-body {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 48px 56px;
            font-size: 1.0625rem;
            line-height: 1.8;
            color: var(--text-main);
            margin-bottom: 48px;
            word-wrap: break-word;
        }

        .article-body> :first-child {
            margin-top: 0;
        }

        .article-body h2 {
            font-size: 1.65rem;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--dark-bg);
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: var(--dark-bg);
            line-height: 1.35;
        }

        .article-body p {
            margin: 0 0 20px;
            line-height: 1.85;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--accent);
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: #F0FDF4;
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            color: #3F3F46;
            font-style: normal;
            margin: 24px 0;
            font-size: 1rem;
        }

        .article-body blockquote p:last-child {
            margin-bottom: 0;
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0 24px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 8px;
            line-height: 1.75;
        }

        .article-body img {
            max-width: 100%;
            border-radius: 16px;
            border: 1px solid var(--border);
            margin: 24px auto;
            display: block;
            height: auto;
        }

        .article-body code {
            background: #F4F4F5;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.875em;
            color: var(--accent-deep);
            font-family: var(--font-num);
        }

        .article-body pre {
            background: var(--dark-bg);
            color: #E4E4E7;
            padding: 20px;
            border-radius: 12px;
            overflow-x: auto;
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 24px 0;
        }

        .article-body pre code {
            background: transparent;
            padding: 0;
            color: inherit;
            font-size: inherit;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }

        .article-body table th,
        .article-body table td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
        }

        .article-body table th {
            background: #F8FAF9;
            font-weight: 600;
            color: var(--dark-bg);
        }

        /* ===== 内容未找到 ===== */
        .not-found {
            text-align: center;
            padding: 80px 32px;
            background: var(--card-bg);
            border: 2px dashed var(--border);
            border-radius: var(--radius-lg);
        }

        .not-found i {
            font-size: 3rem;
            color: var(--text-placeholder);
            margin-bottom: 24px;
            display: block;
        }

        .not-found h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--dark-bg);
            margin-bottom: 8px;
        }

        .not-found p {
            color: var(--text-sub);
            margin-bottom: 24px;
        }

        .not-found .btn {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 999px;
            background: var(--primary-grad);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.25s ease;
        }

        .not-found .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(22, 163, 74, 0.3);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 0 0 40px;
        }

        .related-section .section-heading {
            margin-bottom: 24px;
        }

        .related-section .section-heading h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark-bg);
            position: relative;
            padding-left: 16px;
        }

        .related-section .section-heading h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            border-radius: 999px;
            background: var(--primary-grad);
        }

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

        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all 0.3s ease;
            height: 100%;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(22, 163, 74, 0.3);
        }

        .related-card-img {
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 16px;
            aspect-ratio: 16 / 8;
        }

        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

        .related-tag {
            display: inline-block;
            padding: 4px 12px;
            border: 1px solid var(--primary);
            color: var(--primary);
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 500;
            align-self: flex-start;
            margin-bottom: 12px;
            background: #F0FDF4;
            transition: background 0.2s ease;
        }

        .related-card:hover .related-tag {
            background: rgba(22, 163, 74, 0.1);
        }

        .related-title {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--dark-bg);
            line-height: 1.4;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .related-date {
            font-size: 0.8125rem;
            color: var(--text-sub);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 返回入口 ===== */
        .back-entry {
            padding: 0 0 48px;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9375rem;
            transition: all 0.2s ease;
        }

        .back-link:hover {
            color: var(--accent);
            gap: 12px;
        }

        /* ===== CTA横幅 ===== */
        .cta-banner {
            background: linear-gradient(120deg, rgba(22, 163, 74, 0.88), rgba(34, 197, 94, 0.82), rgba(249, 115, 22, 0.85)), url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            padding: 80px 32px;
            text-align: center;
            color: #fff;
        }

        .cta-banner h2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }

        .cta-banner p {
            font-size: 1.0625rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.6;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 40px;
            border-radius: 999px;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.0625rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            transition: all 0.25s ease;
            margin-bottom: 40px;
        }

        .btn-cta-primary:hover {
            background: #E4E4E7;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            color: var(--accent-deep);
        }

        .btn-cta-primary:active {
            transform: scale(0.98);
        }

        .cta-contacts {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
        }

        .cta-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9375rem;
            color: rgba(255, 255, 255, 0.9);
        }

        .cta-contact-item i {
            font-size: 1.2rem;
            opacity: 0.85;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-bg);
            padding: 64px 32px 32px;
            color: rgba(255, 255, 255, 0.7);
        }

        .container-page {
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 60px;
            margin-bottom: 48px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-logo .logo-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-grad);
            font-size: 1.05rem;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.5);
            max-width: 280px;
        }

        .footer-links-group {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .link-col h4 {
            font-size: 0.875rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .link-col a {
            display: block;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.45);
            padding: 4px 0;
            transition: color 0.2s ease;
        }

        .link-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.3);
            line-height: 1.8;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.3);
        }

        .footer-bottom a:hover {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .app-sidebar {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

            .mobile-drawer {
                display: flex;
            }

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

            .article-body {
                padding: 36px 32px;
                border-radius: 20px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .cta-contacts {
                gap: 24px;
                flex-direction: column;
            }
        }

        @media (max-width: 767.98px) {
            .related-cards {
                grid-template-columns: 1fr;
            }

            .container-article,
            .wrap {
                padding-left: 20px;
                padding-right: 20px;
            }

            .article-header h1 {
                font-size: 1.6rem;
                line-height: 1.3;
            }

            .article-meta {
                font-size: 0.8125rem;
            }

            .article-body {
                padding: 28px 20px;
                font-size: 1rem;
                border-radius: 16px;
            }

            .article-body h2 {
                font-size: 1.35rem;
            }

            .article-body h3 {
                font-size: 1.15rem;
            }

            .cta-banner {
                padding: 56px 20px;
            }

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

            .breadcrumb-wrap {
                padding-top: 24px;
            }

            .custom-breadcrumb li.active {
                max-width: 160px;
            }
        }

        @media (max-width: 575.98px) {
            .footer-links-group {
                grid-template-columns: 1fr;
            }

            .cta-contacts {
                align-items: center;
            }

            .btn-cta-primary {
                width: 100%;
                justify-content: center;
                padding: 14px 24px;
            }

            .related-date {
                font-size: 0.75rem;
            }
        }

        @media (max-width: 520px) {
            .custom-breadcrumb {
                font-size: 0.8125rem;
            }

            .custom-breadcrumb li + li::before {
                margin: 0 6px;
            }

            .custom-breadcrumb li.active {
                max-width: 120px;
            }

            .article-header {
                padding: 28px 0 24px;
            }

            .article-header h1 {
                font-size: 1.4rem;
            }
        }

        @media print {
            .app-sidebar,
            .mobile-header,
            .mobile-drawer,
            .cta-banner,
            .site-footer {
                display: none !important;
            }

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

            .article-body {
                box-shadow: none;
                border: none;
            }
        }

/* roulang page: category2 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #16A34A;
            --primary-light: #4ADE80;
            --primary-mid: #22C55E;
            --primary-soft: #86EFAC;
            --accent: #F97316;
            --accent-dark: #EA580C;
            --dark-bg: #18181B;
            --dark-bg-2: #1F1F23;
            --dark-bg-3: #27272A;
            --light-bg: #FAFAF9;
            --card-bg: #FFFFFF;
            --border: #E4E4E7;
            --text: #27272A;
            --text-sub: #71717A;
            --text-light: rgba(255, 255, 255, .78);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-xs: 8px;
            --shadow-sm: 0 2px 10px rgba(24, 24, 27, .05);
            --shadow-md: 0 16px 36px rgba(24, 24, 27, .12);
            --shadow-dark: 0 8px 24px rgba(0, 0, 0, .35);
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "DIN Alternate", Barlow, "Roboto Mono", monospace;
            --transition: all .25s ease;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text);
            background: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        body.no-scroll {
            overflow: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }
        input,
        textarea,
        select {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ============ 容器与主布局 ============ */
        .container-page {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .main-content {
            margin-left: 72px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content>section,
        .main-content>div:not(.back-home-wrap) {
            flex-shrink: 0;
        }

        /* ============ 通用区块标题 ============ */
        .section-heading {
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(22, 163, 74, .08);
            color: var(--primary);
            font-size: .8125rem;
            font-weight: 600;
            letter-spacing: .02em;
            margin-bottom: 14px;
        }
        .section-tag i {
            font-size: .875rem;
        }
        .section-title {
            font-size: clamp(1.625rem, 3vw, 2.375rem);
            font-weight: 700;
            line-height: 1.2;
            color: var(--dark-bg);
            letter-spacing: -.01em;
            margin: 0 0 8px;
        }
        .section-lead {
            color: var(--text-sub);
            font-size: 1.0625rem;
            max-width: 640px;
            margin: 0;
        }
        .section-title-center {
            text-align: center;
            font-size: clamp(1.625rem, 3vw, 2.375rem);
            font-weight: 700;
            color: #fff;
            letter-spacing: -.01em;
            margin-bottom: 12px;
        }
        .section-lead-center {
            text-align: center;
            color: rgba(255, 255, 255, .75);
            font-size: 1.0625rem;
            max-width: 640px;
            margin: 0 auto 40px;
        }

        /* ============ 侧边栏导航 ============ */
        .sidebar-nav-wrap {
            position: fixed;
            top: 0;
            left: 0;
            width: 72px;
            height: 100vh;
            background: var(--dark-bg);
            z-index: 1030;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 22px 0 24px;
            border-right: 1px solid rgba(255, 255, 255, .06);
        }
        .sidebar-logo {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            font-size: 1.375rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 32px;
            box-shadow: 0 6px 20px rgba(22, 163, 74, .35);
            transition: var(--transition);
        }
        .sidebar-logo:hover {
            transform: scale(1.06);
            box-shadow: 0 8px 26px rgba(249, 115, 22, .4);
        }
        .sidebar-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
            width: 100%;
        }
        .sidebar-nav-item {
            position: relative;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            color: rgba(255, 255, 255, .65);
            font-size: 1.125rem;
            transition: var(--transition);
        }
        .sidebar-nav-item:hover {
            color: var(--primary-light);
            background: rgba(255, 255, 255, .06);
        }
        .sidebar-nav-item.active {
            color: var(--primary-light);
            background: rgba(255, 255, 255, .08);
        }
        .sidebar-nav-item.active::before {
            content: '';
            position: absolute;
            left: -14px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            border-radius: 0 4px 4px 0;
            background: linear-gradient(var(--primary-light), var(--primary-mid));
        }
        .tooltip-label {
            position: absolute;
            left: 60px;
            top: 50%;
            transform: translateY(-50%);
            white-space: nowrap;
            background: var(--dark-bg);
            color: #fff;
            font-size: .75rem;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 8px;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: var(--transition);
            box-shadow: 0 6px 16px rgba(0, 0, 0, .35);
            z-index: 10;
        }
        .tooltip-label::before {
            content: '';
            position: absolute;
            left: -5px;
            top: 50%;
            transform: translateY(-50%);
            border-top: 5px solid transparent;
            border-bottom: 5px solid transparent;
            border-right: 5px solid var(--dark-bg);
        }
        .sidebar-nav-item:hover .tooltip-label,
        .sidebar-nav-item:focus .tooltip-label {
            opacity: 1;
            visibility: visible;
        }
        .sidebar-contact {
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, .08);
            width: 100%;
            display: flex;
            justify-content: center;
        }

        /* ============ 移动端顶栏 ============ */
        .mobile-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1035;
            height: 64px;
            background: var(--dark-bg);
            display: none;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 1.0625rem;
        }
        .mobile-logo .logo-badge {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .875rem;
            font-weight: 800;
        }
        .mobile-menu-btn {
            width: 44px;
            height: 44px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: 10px;
        }
        .mobile-menu-btn .menu-bar {
            display: block;
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: #fff;
            transition: var(--transition);
        }
        .mobile-menu-btn.active .menu-bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-menu-btn.active .menu-bar:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-btn.active .menu-bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--dark-bg);
            z-index: 1034;
            padding: 88px 32px 32px;
            display: none;
            flex-direction: column;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }
        .drawer-nav-item {
            display: flex;
            align-items: center;
            gap: 16px;
            min-height: 56px;
            padding: 0 16px;
            border-radius: 14px;
            color: rgba(255, 255, 255, .8);
            font-size: 1rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .drawer-nav-item i {
            width: 28px;
            text-align: center;
            font-size: 1.125rem;
        }
        .drawer-nav-item:hover,
        .drawer-nav-item.active {
            background: rgba(255, 255, 255, .06);
            color: var(--primary-light);
        }
        .drawer-contact {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 24px;
            color: rgba(255, 255, 255, .5);
            font-size: .8125rem;
            line-height: 2;
        }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 30px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            box-shadow: 0 6px 20px rgba(234, 88, 12, .3);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(234, 88, 12, .38);
            color: #fff;
        }
        .btn-ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, .4);
            color: #fff;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, .08);
            border-color: rgba(255, 255, 255, .7);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 6px 22px rgba(255, 255, 255, .25);
        }
        .btn-white:hover {
            background: #F4F4F5;
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn:focus,
        .btn-ghost:focus,
        .btn-accent:focus,
        .btn-white:focus {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
            box-shadow: none;
        }
        .btn:active {
            transform: scale(.98);
        }

        /* ============ 分类 Hero ============ */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, #18181B 0%, #1E2B22 60%, #2D3A2E 100%);
            padding: 110px 0 100px;
            overflow: hidden;
            display: flex;
            align-items: center;
        }
        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            pointer-events: none;
        }
        .hero-grid-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
            background-size: 48px 48px;
        }
        .hero-glow {
            position: absolute;
            top: -160px;
            left: -140px;
            width: 620px;
            height: 620px;
            background: radial-gradient(circle, rgba(22, 163, 74, .28) 0%, transparent 65%);
            border-radius: 50%;
        }
        .hero-ring {
            position: absolute;
            top: 12%;
            right: 6%;
            width: 140px;
            height: 140px;
            border: 2px solid rgba(255, 255, 255, .08);
            border-radius: 50%;
            transform: rotate(20deg);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .08);
            color: var(--primary-light);
            font-size: .8125rem;
            font-weight: 500;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, .1);
        }
        .hero-title {
            font-size: clamp(2.5rem, 5vw, 3.75rem);
            font-weight: 800;
            line-height: 1.15;
            color: rgba(255, 255, 255, .92);
            letter-spacing: -.01em;
            margin-bottom: 20px;
        }
        .hero-desc {
            font-size: 1.0625rem;
            line-height: 1.85;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 0 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-visual {
            position: relative;
            padding: 20px 0;
        }
        .hero-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, .1);
            box-shadow: 0 28px 60px rgba(0, 0, 0, .45);
        }
        .hero-float-card {
            position: absolute;
            background: rgba(24, 24, 27, .72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: 0 14px 36px rgba(0, 0, 0, .35);
            z-index: 2;
        }
        .hero-float-card i {
            font-size: 1.5rem;
            color: var(--primary-light);
        }
        .float-num {
            font-family: var(--font-num);
            font-size: 1.25rem;
            font-weight: 700;
            display: block;
            line-height: 1.2;
        }
        .hero-float-card span {
            font-size: .75rem;
            color: rgba(255, 255, 255, .6);
            display: block;
            line-height: 1.4;
        }
        .float-card-1 {
            top: 16%;
            left: -4%;
            transform: rotate(-3deg);
        }
        .float-card-2 {
            bottom: 12%;
            right: -2%;
            transform: rotate(3deg);
        }

        /* ============ 数据徽章带 ============ */
        .data-band {
            background: var(--dark-bg);
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding: 72px 0 64px;
        }
        .data-band-head {
            text-align: center;
            margin-bottom: 44px;
        }
        .data-band-head .section-tag {
            background: rgba(255, 255, 255, .08);
            color: var(--primary-soft);
        }
        .data-band-title {
            display: block;
            font-size: clamp(1.375rem, 2.4vw, 1.875rem);
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 0;
            border-top: 1px solid rgba(255, 255, 255, .08);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .stat-item {
            text-align: center;
            padding: 36px 16px;
            border-right: 1px solid rgba(255, 255, 255, .08);
            transition: var(--transition);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-num {
            font-family: var(--font-num);
            font-size: clamp(2rem, 3.2vw, 3.25rem);
            font-weight: 700;
            line-height: 1.1;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: block;
        }
        .stat-num span {
            font-size: .55em;
            margin-left: 2px;
        }
        .stat-label {
            display: block;
            margin-top: 8px;
            font-size: .875rem;
            color: rgba(255, 255, 255, .55);
            letter-spacing: .04em;
        }

        /* ============ 核心功能 ============ */
        .features-section {
            background: var(--light-bg);
            padding: 96px 0;
        }
        .features-grid .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 32px 28px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .features-grid .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-mid));
            opacity: .2;
            transition: var(--transition);
        }
        .features-grid .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(22, 163, 74, .3);
        }
        .features-grid .feature-card:hover::before {
            opacity: 1;
        }
        .features-grid .col:nth-child(2) .feature-card {
            transform: translateY(16px);
        }
        .features-grid .col:nth-child(2) .feature-card:hover {
            transform: translateY(10px);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-md);
            background: #ECFDF5;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.625rem;
            margin-bottom: 22px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }
        .feature-card h4 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: .9375rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* ============ 图文对排 ============ */
        .split-section {
            background: #fff;
            padding: 96px 0;
            border-top: 1px solid var(--border);
        }
        .split-img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            width: 100%;
            object-fit: cover;
        }
        .split-body {
            padding-left: 24px;
        }
        .split-body .section-tag {
            margin-bottom: 16px;
        }
        .split-body h2 {
            font-size: clamp(1.625rem, 3vw, 2.25rem);
            font-weight: 700;
            color: var(--dark-bg);
            line-height: 1.25;
            letter-spacing: -.01em;
            margin-bottom: 16px;
        }
        .split-body>p {
            color: var(--text-sub);
            font-size: 1.0625rem;
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 24px;
        }
        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text);
            font-size: .9375rem;
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .check-list li i {
            color: var(--primary);
            font-size: .875rem;
            margin-top: 5px;
        }
        .split-heading-sm {
            display: block;
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--dark-bg);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        /* ============ 要点列表 ============ */
        .point-section {
            background: var(--light-bg);
            padding: 96px 0;
        }
        .point-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px 40px;
        }
        .point-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }
        .point-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(22, 163, 74, .25);
        }
        .point-marker {
            flex-shrink: 0;
            width: 12px;
            height: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-mid));
            border-radius: 3px;
            margin-top: 7px;
        }
        .point-item h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .point-item p {
            font-size: .9375rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* ============ 适用场景 ============ */
        .scenario-section {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 96px 0;
        }
        .scenario-card {
            background: var(--light-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }
        .scenario-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(22, 163, 74, .25);
        }
        .scenario-card i {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(22, 163, 74, .1), rgba(249, 115, 22, .1));
            color: var(--primary);
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
        }
        .scenario-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
        }
        .scenario-card p {
            font-size: .9375rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--light-bg);
            padding: 96px 0;
        }
        .faq-section .section-heading {
            margin-bottom: 32px;
        }
        .custom-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .custom-accordion .accordion-button {
            padding: 20px 24px;
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text);
            background: #fff;
            box-shadow: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            border-radius: var(--radius-md) !important;
        }
        .custom-accordion .accordion-button:not(.collapsed) {
            background: #fff;
            color: var(--text);
            box-shadow: none;
        }
        .custom-accordion .accordion-button::after {
            display: none;
        }
        .custom-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: var(--radius-md);
        }
        .accordion-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #ECFDF5;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
            font-size: 1.125rem;
            line-height: 1;
        }
        .accordion-icon::before {
            content: '+';
            font-weight: 400;
            transition: var(--transition);
        }
        .accordion-button:not(.collapsed) .accordion-icon {
            background: var(--primary);
            color: #fff;
        }
        .accordion-button:not(.collapsed) .accordion-icon::before {
            content: '×';
            font-size: 1.25rem;
        }
        .custom-accordion .accordion-body {
            padding: 0 24px 20px 16px;
            color: var(--text-sub);
            border-left: 4px solid var(--primary);
            margin-left: 24px;
            line-height: 1.8;
            font-size: .9375rem;
        }
        .faq-more {
            text-align: center;
            margin-top: 28px;
        }
        .faq-more a {
            color: var(--primary);
            font-weight: 500;
            font-size: .9375rem;
            border-bottom: 1px solid rgba(22, 163, 74, .3);
            transition: var(--transition);
        }
        .faq-more a:hover {
            border-bottom-color: var(--primary);
        }

        /* ============ CTA 横幅 ============ */
        .cta-banner {
            background: linear-gradient(120deg, #16A34A 0%, #22C55E 45%, #F97316 100%);
            padding: 80px 0;
            text-align: center;
            color: #fff;
        }
        .cta-banner h2 {
            font-size: clamp(1.625rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: -.01em;
        }
        .cta-banner>div>p {
            color: rgba(255, 255, 255, .88);
            font-size: 1.0625rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-actions {
            margin-bottom: 40px;
        }
        .contact-row {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: .9375rem;
            color: rgba(255, 255, 255, .92);
        }
        .contact-item i {
            font-size: 1.25rem;
            color: rgba(255, 255, 255, .9);
        }

        /* ============ 返回首页 ============ */
        .back-home-wrap {
            background: var(--dark-bg);
            padding: 32px 0;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }
        .back-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, .7);
            font-size: .9375rem;
            font-weight: 500;
            transition: var(--transition);
            padding: 8px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .06);
        }
        .back-home-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .12);
            transform: translateX(-2px);
        }
        .back-home-link:focus {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--dark-bg);
            padding: 64px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, .05);
        }
        .footer-top {
            display: flex;
            gap: 60px;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }
        .footer-brand {
            max-width: 300px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-logo .logo-badge {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .9rem;
            font-weight: 800;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, .55);
            font-size: .875rem;
            line-height: 1.7;
            margin: 0;
        }
        .footer-links-group {
            display: flex;
            gap: 64px;
            flex-wrap: wrap;
        }
        .link-col h4 {
            color: rgba(255, 255, 255, .9);
            font-size: .9375rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .link-col a {
            display: block;
            color: rgba(255, 255, 255, .55);
            font-size: .875rem;
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .link-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 24px;
            text-align: center;
            color: rgba(255, 255, 255, .35);
            font-size: .8125rem;
            line-height: 1.8;
        }

        /* ============ 焦点可访问性 ============ */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 8px;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1199.98px) {
            .container-page {
                padding: 0 24px;
            }
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stat-item:nth-child(3) {
                border-right: none;
            }
            .stat-item:nth-child(-n+3) {
                border-bottom: 1px solid rgba(255, 255, 255, .08);
            }
        }

        @media (max-width: 991.98px) {
            .sidebar-nav-wrap {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-top: 64px;
            }
            .mobile-header {
                display: flex;
            }
            .category-hero {
                padding: 70px 0 64px;
                min-height: auto;
            }
            .hero-visual {
                margin-top: 8px;
            }
            .float-card-1 {
                left: 2%;
            }
            .float-card-2 {
                right: 2%;
            }
            .split-body {
                padding: 0;
            }
            .features-grid .col:nth-child(2) .feature-card {
                transform: none;
            }
            .features-grid .col:nth-child(2) .feature-card:hover {
                transform: translateY(-6px);
            }
            .point-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stat-item:nth-child(3) {
                border-right: none;
            }
            .stat-item:nth-child(4),
            .stat-item:nth-child(5) {
                border-bottom: none;
            }
            .footer-top {
                flex-direction: column;
                gap: 36px;
            }
        }

        @media (max-width: 767.98px) {
            .container-page {
                padding: 0 20px;
            }
            .section-heading {
                margin-bottom: 36px;
            }
            .category-hero {
                padding: 56px 0 48px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-float-card {
                padding: 10px 14px;
            }
            .float-num {
                font-size: 1.0625rem;
            }
            .hero-float-card i {
                font-size: 1.25rem;
            }
            .data-band {
                padding: 56px 0 48px;
            }
            .features-section,
            .split-section,
            .point-section,
            .scenario-section,
            .faq-section {
                padding: 64px 0;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item {
                border-right: none;
                padding: 24px 12px;
            }
            .stat-item:nth-child(1),
            .stat-item:nth-child(2) {
                border-bottom: 1px solid rgba(255, 255, 255, .08);
            }
            .stat-item:nth-child(4) {
                border-bottom: none;
            }
            .stat-item:nth-child(5) {
                display: none;
            }
            .point-grid {
                gap: 16px;
            }
            .contact-row {
                gap: 24px;
                flex-direction: column;
                align-items: center;
            }
            .footer-links-group {
                gap: 32px;
            }
        }

        @media (max-width: 575.98px) {
            .hero-title {
                font-size: clamp(2rem, 10vw, 2.75rem);
            }
            .hero-desc {
                font-size: .9375rem;
            }
            .hero-badge {
                font-size: .75rem;
                padding: 5px 10px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .btn {
                padding: 13px 24px;
                font-size: .9375rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-num {
                font-size: 1.875rem;
            }
            .feature-card,
            .scenario-card {
                padding: 24px 20px;
            }
            .custom-accordion .accordion-button {
                font-size: .9375rem;
                padding: 16px 18px;
            }
            .cta-banner {
                padding: 56px 0;
            }
            .back-home-wrap {
                padding: 24px 0;
            }
        }