/* roulang page: index */
:root {
            --primary: #00C896;
            --primary-dark: #00A87D;
            --primary-light: #66E3C2;
            --bg-dark: #0B1220;
            --bg-light: #F6F8FB;
            --bg-white: #FFFFFF;
            --text-primary: #1E293B;
            --text-secondary: #64748B;
            --text-inverse: #FFFFFF;
            --text-inverse-70: rgba(255, 255, 255, 0.7);
            --border-color: #E2E8F0;
            --gold: #F5A623;
            --radius-card: 16px;
            --radius-btn: 9999px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 24px rgba(0, 200, 150, 0.12);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'sans-serif';
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-white);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            padding-bottom: 64px;
        }

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

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

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

        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
            border-bottom: 1px solid transparent;
        }

        .site-header.scrolled {
            background: rgba(11, 18, 32, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom-color: rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
        }

        .site-header .container {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
            flex-shrink: 0;
        }

        .brand-mark svg {
            width: 20px;
            height: 20px;
            fill: #0B1220;
        }

        .brand-name {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .brand-name span {
            color: var(--primary-light);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            margin-left: 1.5rem;
        }

        .nav-links a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.875rem;
            font-weight: 500;
            padding: 6px 2px;
            position: relative;
            transition: var(--transition);
        }

        .nav-links a:hover {
            color: #fff;
        }

        .nav-links a.active {
            color: #fff;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 6px 14px;
            transition: var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.2);
        }

        .search-box svg {
            width: 16px;
            height: 16px;
            color: rgba(255, 255, 255, 0.6);
            flex-shrink: 0;
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            font-size: 0.85rem;
            margin-left: 8px;
            width: 0;
            transition: width 0.35s ease;
        }

        .search-box:hover input,
        .search-box:focus-within input {
            width: 130px;
        }

        .search-box ::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .btn-header-cta {
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 8px 20px;
            font-size: 0.875rem;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-header-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(0, 200, 150, 0.3);
        }

        .btn-header-cta:active {
            transform: scale(0.97);
        }

        .mobile-menu-btn {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #fff;
        }

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

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

        .mobile-menu-btn svg {
            width: 22px;
            height: 22px;
        }

        .mobile-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #0B1220;
            z-index: 99;
            padding: 2rem 1.5rem;
            flex-direction: column;
            overflow-y: auto;
        }

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

        .mobile-panel a.mobile-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.25rem;
            font-weight: 500;
            padding: 0.75rem 0 0.75rem 1rem;
            border-left: 3px solid transparent;
            margin-bottom: 0.5rem;
            transition: var(--transition);
        }

        .mobile-panel a.mobile-link.active {
            border-left-color: var(--primary);
            color: #fff;
            background: rgba(0, 200, 150, 0.06);
        }

        .mobile-panel a.mobile-link:hover {
            border-left-color: var(--primary);
            color: #fff;
            padding-left: 1.25rem;
        }

        .mobile-panel .mobile-cta {
            margin-top: 1.5rem;
            text-align: center;
        }

        /* Hero */
        .hero-section {
            background: var(--bg-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 80vh;
            display: flex;
            align-items: center;
            padding-top: 64px;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background: radial-gradient(ellipse at center, rgba(0, 200, 150, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-content {
            padding: 3rem 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 200, 150, 0.12);
            border: 1px solid rgba(0, 200, 150, 0.3);
            color: var(--primary-light);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            letter-spacing: 0.02em;
        }

        .hero-badge svg {
            width: 14px;
            height: 14px;
            fill: var(--primary);
        }

        .hero-title {
            font-size: 2.25rem;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 1.5rem;
        }

        @media (min-width: 768px) {
            .hero-title {
                font-size: 3rem;
                line-height: 1.15;
            }
        }

        .hero-subtitle {
            color: rgba(255, 255, 255, 0.78);
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 2rem;
            max-width: 540px;
        }

        .hero-ctas {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 14px 28px;
            font-size: 0.95rem;
            font-weight: 700;
            transition: var(--transition);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 200, 150, 0.35);
        }

        .btn-primary:active {
            transform: scale(0.96);
        }

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

        .btn-primary svg {
            width: 18px;
            height: 18px;
            transition: transform 0.25s ease;
        }

        .btn-primary:hover svg {
            transform: translateX(4px);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            border-radius: 999px;
            padding: 14px 24px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.3);
        }

        .btn-ghost:active {
            transform: scale(0.96);
        }

        .btn-ghost:focus-visible {
            outline: 2px solid rgba(255, 255, 255, 0.6);
            outline-offset: 3px;
        }

        .trust-signal {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            margin-bottom: 2rem;
        }

        .trust-signal svg {
            width: 18px;
            height: 18px;
            fill: var(--primary);
            flex-shrink: 0;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
        }

        .stat-num {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--primary-light);
            font-variant-numeric: tabular-nums;
        }

        .stat-num.gold {
            color: var(--gold);
        }

        .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 2px;
        }

        .hero-visual {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            min-height: 420px;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 20px;
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.2) 0%, transparent 60%);
            border-radius: 20px;
        }

        .float-card {
            position: absolute;
            bottom: 24px;
            left: 24px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 16px;
            padding: 14px 18px;
            z-index: 3;
            animation: floatUpDown 3s ease-in-out infinite;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        @keyframes floatUpDown {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        .float-card-icon {
            width: 36px;
            height: 36px;
            background: rgba(0, 200, 150, 0.3);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .float-card-icon svg {
            width: 18px;
            height: 18px;
            fill: var(--primary-light);
        }

        .float-card-text {
            color: #fff;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .float-card-text small {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.7rem;
            font-weight: 400;
        }

        .corner-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: rgba(11, 18, 32, 0.7);
            border: 1px solid rgba(245, 166, 35, 0.4);
            color: var(--gold);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 6px 12px;
            border-radius: 999px;
            z-index: 3;
            backdrop-filter: blur(8px);
            letter-spacing: 0.04em;
        }

        /* 卖点区 */
        .section-padding {
            padding: 80px 0;
        }

        @media (max-width: 767px) {
            .section-padding {
                padding: 56px 0;
            }
        }

        .features-section {
            background: var(--bg-light);
        }

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

        .section-heading .eyebrow {
            display: inline-block;
            background: rgba(0, 200, 150, 0.08);
            border: 1px solid rgba(0, 200, 150, 0.15);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .section-heading h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .section-heading h2 {
                font-size: 2rem;
            }
        }

        .section-heading p {
            color: var(--text-secondary);
            margin-top: 8px;
            max-width: 600px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .feature-card-large {
            grid-column: span 7;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card-large::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(0, 200, 150, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .feature-card-large:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 200, 150, 0.3);
            transform: translateY(-2px);
        }

        .feature-card-small-wrap {
            grid-column: span 5;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .feature-card-small {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

        .feature-card-small:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 200, 150, 0.3);
            transform: translateY(-2px);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .feature-icon.jade {
            background: rgba(0, 200, 150, 0.12);
        }

        .feature-icon.gold {
            background: rgba(245, 166, 35, 0.12);
        }

        .feature-icon svg {
            width: 24px;
            height: 24px;
        }

        .feature-card-large h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .feature-card-small h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .feature-card-large p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 440px;
        }

        .feature-card-small p {
            color: var(--text-secondary);
            font-size: 0.875rem;
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary-dark);
            font-size: 0.875rem;
            font-weight: 600;
            transition: var(--transition);
        }

        .feature-link svg {
            width: 14px;
            height: 14px;
            transition: transform 0.25s ease;
        }

        .feature-link:hover svg {
            transform: translateX(4px);
        }

        /* 场景演示 */
        .steps-section {
            background: #fff;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 56px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
            opacity: 0.3;
            z-index: 0;
        }

        .step-item {
            position: relative;
            z-index: 1;
            text-align: center;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            transition: var(--transition);
        }

        .step-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 200, 150, 0.3);
        }

        .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 200, 150, 0.3);
        }

        .step-item h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .step-item p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .step-cta {
            text-align: center;
            margin-top: 48px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 2px solid var(--primary);
            color: var(--primary-dark);
            border-radius: 999px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 200, 150, 0.3);
        }

        .btn-outline:active {
            transform: scale(0.96);
        }

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

        /* 社会认同 */
        .social-proof-section {
            background: var(--bg-dark);
            color: #fff;
        }

        .social-proof-heading {
            text-align: center;
            margin-bottom: 48px;
        }

        .social-proof-heading .eyebrow {
            background: rgba(245, 166, 35, 0.12);
            border-color: rgba(245, 166, 35, 0.25);
            color: var(--gold);
        }

        .social-proof-heading h2 {
            color: #fff;
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        @media (min-width: 768px) {
            .social-proof-heading h2 {
                font-size: 2rem;
            }
        }

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

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

        .testimonial-card:hover {
            border-color: rgba(0, 200, 150, 0.3);
            background: rgba(255, 255, 255, 0.06);
        }

        .stars {
            color: var(--gold);
            font-size: 0.9rem;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        .testimonial-card p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 16px;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            font-weight: 700;
            color: #0B1220;
        }

        .testimonial-author .name {
            font-size: 0.85rem;
            font-weight: 500;
            color: #fff;
        }

        .testimonial-author .role {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .stats-bar {
            display: flex;
            justify-content: center;
            gap: 64px;
            padding: 32px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .stats-item {
            text-align: center;
        }

        .stats-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .stats-item .label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 4px;
        }

        .partners-row {
            display: flex;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
            align-items: center;
        }

        .partner-logo {
            color: rgba(255, 255, 255, 0.35);
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            transition: var(--transition);
            filter: grayscale(1);
            padding: 8px 16px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 8px;
        }

        .partner-logo:hover {
            filter: grayscale(0);
            color: #fff;
            border-color: rgba(0, 200, 150, 0.4);
            background: rgba(255, 255, 255, 0.04);
        }

        /* 最新信息 */
        .latest-section {
            background: var(--bg-light);
        }

        .latest-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .latest-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary-dark);
            font-size: 0.875rem;
            font-weight: 500;
            transition: var(--transition);
            padding: 8px 16px;
            border-radius: 999px;
            border: 1px solid rgba(0, 200, 150, 0.2);
        }

        .latest-more:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .latest-more svg {
            width: 14px;
            height: 14px;
            transition: transform 0.25s ease;
        }

        .latest-more:hover svg {
            transform: translateX(4px);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .news-featured {
            grid-column: span 7;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition);
            display: block;
        }

        .news-featured:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 200, 150, 0.3);
            transform: translateY(-2px);
        }

        .news-featured-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

        .news-featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-featured:hover .news-featured-img img {
            transform: scale(1.05);
        }

        .news-featured-body {
            padding: 24px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }

        .badge-category {
            display: inline-block;
            background: rgba(0, 200, 150, 0.1);
            border: 1px solid rgba(0, 200, 150, 0.15);
            color: var(--primary-dark);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 999px;
        }

        .news-meta time {
            font-size: 0.78rem;
            color: var(--text-secondary);
        }

        .news-featured-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .news-featured-body p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            margin-bottom: 16px;
        }

        .news-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-dark);
        }

        .news-readmore svg {
            width: 14px;
            height: 14px;
            transition: transform 0.25s ease;
        }

        .news-featured:hover .news-readmore svg {
            transform: translateX(4px);
        }

        .news-list {
            grid-column: span 5;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 12px;
            transition: var(--transition);
        }

        .news-item:hover {
            border-color: rgba(0, 200, 150, 0.3);
            box-shadow: var(--shadow-hover);
        }

        .news-thumb {
            width: 64px;
            height: 64px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-item-info {
            flex: 1;
            min-width: 0;
        }

        .news-item-info h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .news-item-info .meta-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.72rem;
            color: var(--text-secondary);
        }

        .news-item-info .meta-row .badge-category {
            font-size: 0.65rem;
            padding: 2px 8px;
        }

        .empty-state {
            grid-column: 1 / -1;
            border: 2px dashed var(--border-color);
            border-radius: var(--radius-card);
            padding: 60px 24px;
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.95rem;
            background: rgba(255, 255, 255, 0.6);
        }

        /* FAQ */
        .faq-section {
            background: #fff;
        }

        .faq-container {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            margin-bottom: 16px;
            border: 1px solid var(--border-color);
            border-radius: 14px;
            border-left: 4px solid var(--primary);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 200, 150, 0.4);
            border-left-color: var(--primary);
            box-shadow: 0 2px 12px rgba(0, 200, 150, 0.06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            user-select: none;
            background: #fff;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 200, 150, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            flex-shrink: 0;
        }

        .faq-icon svg {
            width: 14px;
            height: 14px;
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
        }

        .faq-item.open .faq-icon svg {
            transform: rotate(45deg);
            fill: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 240px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            background: rgba(246, 248, 251, 0.7);
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            border-radius: 0 0 14px 14px;
        }

        /* CTA */
        .cta-section {
            padding: 0 0 80px;
            background: #fff;
        }

        .cta-banner {
            background:
                linear-gradient(to right, rgba(11, 18, 32, 0.85) 0%, rgba(11, 18, 32, 0.6) 100%),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-radius: 20px;
            padding: 64px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            left: -40px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(0, 200, 150, 0.2);
            filter: blur(60px);
        }

        .cta-banner h2 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 12px;
            line-height: 1.3;
            position: relative;
            z-index: 1;
        }

        @media (min-width: 768px) {
            .cta-banner h2 {
                font-size: 2rem;
            }
        }

        .cta-banner p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 520px;
            font-size: 0.95rem;
            position: relative;
            z-index: 1;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 16px 36px;
            font-size: 1rem;
            font-weight: 700;
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }

        .cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0, 200, 150, 0.4);
        }

        .cta-btn:active {
            transform: scale(0.96);
        }

        .cta-btn svg {
            width: 18px;
            height: 18px;
            transition: transform 0.25s ease;
        }

        .cta-btn:hover svg {
            transform: translateX(4px);
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .brand-name {
            margin-bottom: 16px;
            display: flex;
            align-items: center;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-links h4,
        .footer-contact h4 {
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 18px;
        }

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

        .footer-links a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-links a::before {
            content: '›';
            color: var(--primary);
            font-size: 1rem;
            line-height: 1;
            margin-right: 2px;
        }

        .footer-contact ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-contact ul li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact svg {
            width: 16px;
            height: 16px;
            opacity: 0.5;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
        }

        /* 底部悬浮条 */
        .float-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 80;
            background: rgba(11, 18, 32, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 12px 24px;
            backdrop-filter: blur(12px);
            transform: translateY(100%);
            transition: transform 0.4s ease;
        }

        .float-cta.visible {
            transform: translateY(0);
        }

        .float-cta-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .float-cta-text {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.88rem;
        }

        .float-cta-text strong {
            color: #fff;
            font-weight: 600;
        }

        .float-cta .btn-primary {
            padding: 10px 24px;
            font-size: 0.88rem;
        }

        @media (max-width: 640px) {
            .float-cta-inner {
                flex-direction: column;
            }

            .float-cta-text {
                display: none;
            }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .hero-visual {
                min-height: 320px;
            }

            .nav-links {
                display: none;
            }

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

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

            .feature-card-large {
                grid-column: span 1;
            }

            .feature-card-small-wrap {
                grid-column: span 1;
                display: grid;
                grid-template-columns: 1fr 1fr;
            }

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

            .news-featured {
                grid-column: span 1;
            }

            .news-list {
                grid-column: span 1;
                display: grid;
                grid-template-columns: 1fr 1fr;
            }

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

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

            .steps-grid::before {
                display: none;
            }

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

        @media (max-width: 768px) {
            .header-right .search-box {
                display: none;
            }

            .feature-card-small-wrap {
                grid-template-columns: 1fr;
            }

            .news-list {
                grid-template-columns: 1fr;
            }

            .stats-bar {
                gap: 32px;
            }

            .cta-banner {
                padding: 48px 24px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.75rem;
            }

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

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

            .hero-stats {
                gap: 1rem;
            }

            .stat-num {
                font-size: 1.3rem;
            }
        }

        /* 通用 focus-visible */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category1 */
:root {
            --primary: #00C896;
            --primary-hover: #00b382;
            --primary-dark: #0B1220;
            --content-bg: #F6F8FB;
            --amber: #F5A623;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius-card: 16px;
            --radius-btn: 999px;
            --shadow-card: 0 4px 20px rgba(15, 23, 42, 0.06);
            --shadow-primary: 0 8px 30px rgba(0, 200, 150, 0.15);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--content-bg);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        .section {
            padding-top: 72px;
            padding-bottom: 72px;
        }

        @media (max-width: 768px) {
            .section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 68px;
            background: rgba(11, 18, 32, .92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            transition: background .3s ease, border-color .3s ease;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #00C896, #00A67A);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 4px 16px rgba(0, 200, 150, .35);
        }

        .brand-mark svg {
            width: 22px;
            height: 22px;
        }

        .brand-name {
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            letter-spacing: .5px;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-name span {
            color: var(--primary);
            display: block;
            font-size: .72rem;
            font-weight: 600;
            letter-spacing: .8px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-left: 24px;
        }

        .nav-links a {
            color: rgba(255, 255, 255, .75);
            font-size: .88rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            transition: color .2s;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #fff;
        }

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 3px;
            border-radius: 999px;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(0, 200, 150, .5);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-left: auto;
            flex-shrink: 0;
        }

        .search-wrap {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-wrap svg {
            width: 18px;
            height: 18px;
            color: rgba(255, 255, 255, .6);
            position: absolute;
            left: 12px;
            pointer-events: none;
            transition: color .2s;
        }

        .search-wrap input {
            width: 36px;
            height: 38px;
            border-radius: 999px;
            border: 1px solid transparent;
            background: rgba(255, 255, 255, .08);
            color: #fff;
            font-size: .85rem;
            padding: 0 12px;
            outline: none;
            transition: all .3s ease;
            cursor: pointer;
        }

        .search-wrap input::placeholder {
            color: transparent;
        }

        .search-wrap input:focus {
            width: 180px;
            border-color: rgba(0, 200, 150, .5);
            background: rgba(255, 255, 255, .14);
            padding-left: 38px;
            padding-right: 16px;
            cursor: text;
        }

        .search-wrap input:focus~svg,
        .search-wrap input:focus {
            color: var(--primary);
        }

        .search-wrap input:focus::placeholder {
            color: rgba(255, 255, 255, .45);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: .9rem;
            padding: 10px 22px;
            border-radius: 999px;
            border: none;
            box-shadow: 0 4px 18px rgba(0, 200, 150, .3);
            transition: all .25s ease;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 200, 150, .4);
        }

        .btn-primary:active {
            transform: scale(.97);
        }

        .btn-primary svg {
            width: 16px;
            height: 16px;
            transition: transform .25s;
        }

        .btn-primary:hover svg {
            transform: translateX(4px);
        }

        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
            font-weight: 600;
            font-size: .9rem;
            padding: 10px 22px;
            border-radius: 999px;
            backdrop-filter: blur(8px);
            transition: all .25s;
        }

        .btn-light:hover {
            background: rgba(255, 255, 255, .2);
            transform: translateY(-2px);
        }

        .btn-light:active {
            transform: scale(.96);
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .1);
        }

        .mobile-toggle svg {
            width: 20px;
            height: 20px;
            color: #fff;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(11, 18, 32, .98);
            z-index: 99;
            padding: 96px 32px 32px;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu a {
            color: rgba(255, 255, 255, .85);
            font-size: 1.25rem;
            font-weight: 600;
            padding: 16px 20px;
            border-left: 3px solid transparent;
            transition: all .2s;
        }

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .search-wrap {
                display: none;
            }
            .header-actions .btn-primary {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
        }

        /* ===== 分类 Banner ===== */
        .category-banner {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            margin-top: 68px;
            background-color: var(--primary-dark);
            overflow: hidden;
        }

        .banner-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .45;
        }

        .banner-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(11, 18, 32, .95) 20%, rgba(11, 18, 32, .45) 70%, rgba(11, 18, 32, .25));
        }

        .banner-content {
            position: relative;
            z-index: 2;
            padding-top: 64px;
            padding-bottom: 64px;
            max-width: 720px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 200, 150, .18);
            border: 1px solid rgba(0, 200, 150, .35);
            color: var(--primary);
            font-size: .8rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
            letter-spacing: .5px;
        }

        .banner-badge svg {
            width: 14px;
            height: 14px;
        }

        .banner-content h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .banner-content h1 .highlight {
            color: var(--primary);
        }

        .banner-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 32px;
            max-width: 560px;
        }

        .banner-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        @media (max-width: 640px) {
            .category-banner {
                min-height: 300px;
            }
            .banner-content h1 {
                font-size: 1.7rem;
            }
            .banner-content p {
                font-size: .95rem;
            }
        }

        /* ===== 通用区块标题 ===== */
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }

        .section-head .eyebrow {
            color: var(--primary);
            font-size: .8rem;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: .98rem;
        }

        @media (max-width: 640px) {
            .section-head h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== 核心优势（非对称网格） ===== */
        .features-section {
            background: #fff;
        }

        .features-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 24px;
        }

        .feature-card {
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 32px;
            background: #fff;
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-primary);
            transform: translateY(-4px);
        }

        .feature-card.large {
            grid-row: span 2;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            min-height: 360px;
            background: linear-gradient(150deg, #0B1220, #0e1a2e);
            border-color: transparent;
        }

        .feature-card.large .feature-icon {
            background: rgba(0, 200, 150, .15);
            color: var(--primary);
            margin-bottom: auto;
        }

        .feature-card.large h3 {
            color: #fff;
            font-size: 1.4rem;
        }

        .feature-card.large p {
            color: rgba(255, 255, 255, .75);
        }

        .feature-card.large .feature-link {
            color: var(--primary);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(0, 200, 150, .1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .feature-icon svg {
            width: 26px;
            height: 26px;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .feature-card p {
            font-size: .92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .88rem;
            font-weight: 600;
            color: var(--primary);
        }

        .feature-link svg {
            width: 15px;
            height: 15px;
            transition: transform .25s;
        }

        .feature-link:hover svg {
            transform: translateX(4px);
        }

        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card.large {
                grid-row: auto;
                min-height: auto;
            }
        }

        /* ===== 适用场景 ===== */
        .scenarios-section {
            background: var(--content-bg);
        }

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

        .scenario-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all .3s;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-primary);
            border-color: var(--primary);
            transform: translateY(-4px);
        }

        .scenario-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .scenario-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .scenario-tag {
            display: inline-block;
            font-size: .72rem;
            font-weight: 700;
            color: var(--amber);
            background: rgba(245, 166, 35, .1);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
            width: fit-content;
        }

        .scenario-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .scenario-body p {
            font-size: .9rem;
            color: var(--text-muted);
            line-height: 1.65;
            flex: 1;
        }

        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 使用流程 ===== */
        .process-section {
            background: #fff;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
            margin-bottom: 40px;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 16%;
            right: 16%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), rgba(0, 200, 150, .2), var(--primary));
            border-radius: 2px;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 0 12px;
        }

        .step-circle {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, #00C896, #00A67A);
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px rgba(0, 200, 150, .3);
            position: relative;
            z-index: 2;
            border: 4px solid #fff;
        }

        .process-step h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: .9rem;
            color: var(--text-muted);
            max-width: 240px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .process-cta {
            text-align: center;
            margin-top: 12px;
        }

        .process-cta a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 700;
            font-size: .95rem;
            border: 2px solid rgba(0, 200, 150, .3);
            padding: 10px 28px;
            border-radius: 999px;
            transition: all .25s;
        }

        .process-cta a:hover {
            background: rgba(0, 200, 150, .08);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .process-steps::before {
                display: none;
            }
            .process-step {
                text-align: left;
                display: flex;
                gap: 20px;
                align-items: flex-start;
            }
            .step-circle {
                flex-shrink: 0;
                margin: 0;
            }
            .process-step p {
                margin: 0;
            }
        }

        /* ===== 信任/数据区 ===== */
        .trust-section {
            background: var(--primary-dark);
            padding: 80px 0;
        }

        .trust-section .section-head h2 {
            color: #fff;
        }

        .trust-section .section-head p {
            color: rgba(255, 255, 255, .6);
        }

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

        .trust-stat {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255, 255, 255, .03);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 16px;
            transition: all .3s;
        }

        .trust-stat:hover {
            border-color: rgba(0, 200, 150, .4);
            background: rgba(0, 200, 150, .05);
        }

        .trust-stat .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--amber);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .trust-stat .label {
            color: rgba(255, 255, 255, .6);
            font-size: .9rem;
            margin-top: 8px;
            display: block;
        }

        @media (max-width: 768px) {
            .trust-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 480px) {
            .trust-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--content-bg);
        }

        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 14px;
            background: #fff;
            overflow: hidden;
            transition: all .3s;
            position: relative;
        }

        .faq-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: opacity .3s;
        }

        .faq-item.open::before,
        .faq-item:hover::before {
            opacity: 1;
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            background: none;
            transition: color .2s;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 200, 150, .1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform .3s;
        }

        .faq-icon svg {
            width: 14px;
            height: 14px;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-a {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            color: var(--text-muted);
            font-size: .92rem;
            line-height: 1.75;
            border-top: 1px solid transparent;
        }

        .faq-item.open .faq-a {
            padding: 16px 24px 20px;
            max-height: 320px;
            border-top-color: var(--border);
            background: #fafbfc;
        }

        @media (max-width: 640px) {
            .faq-q {
                font-size: .92rem;
                padding: 16px 18px;
            }
            .faq-a {
                padding: 0 18px;
            }
            .faq-item.open .faq-a {
                padding: 14px 18px 18px;
            }
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background-color: var(--primary-dark);
            overflow: hidden;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .35;
        }

        .cta-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(0, 200, 150, .25), transparent 70%), linear-gradient(180deg, rgba(11, 18, 32, .6), rgba(11, 18, 32, .9));
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            color: #fff;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, .7);
            font-size: 1.05rem;
            margin-bottom: 32px;
        }

        .cta-content .btn-primary {
            font-size: 1.05rem;
            padding: 14px 36px;
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 60px 0;
            }
            .cta-content h2 {
                font-size: 1.6rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070D17;
            padding: 72px 0 0;
            border-top: 1px solid rgba(255, 255, 255, .05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, .55);
            font-size: .9rem;
            line-height: 1.8;
            margin-top: 12px;
        }

        .footer-links h4,
        .footer-contact h4 {
            color: rgba(255, 255, 255, .9);
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

        .footer-links ul,
        .footer-contact ul {
            list-style: none;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .55);
            font-size: .9rem;
            transition: color .2s, padding-left .2s;
        }

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

        .footer-contact ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .55);
            font-size: .88rem;
        }

        .footer-contact ul li svg {
            width: 16px;
            height: 16px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding: 22px 0;
            text-align: center;
            color: rgba(255, 255, 255, .35);
            font-size: .8rem;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ===== 底部悬浮条 ===== */
        .float-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(11, 18, 32, .95);
            backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 12px 20px;
            transform: translateY(100%);
            opacity: 0;
            transition: transform .4s ease, opacity .4s ease;
        }

        .float-bar.visible {
            transform: translateY(0);
            opacity: 1;
        }

        .float-bar-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .float-bar-text {
            color: rgba(255, 255, 255, .85);
            font-size: .92rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .float-bar-text svg {
            width: 18px;
            height: 18px;
            color: var(--primary);
        }

        .float-bar .btn-primary {
            padding: 8px 20px;
            font-size: .88rem;
            white-space: nowrap;
        }

        @media (max-width: 640px) {
            .float-bar {
                padding: 10px 16px;
            }
            .float-bar-inner {
                justify-content: center;
            }
            .float-bar-text {
                display: none;
            }
            .float-bar .btn-primary {
                width: 100%;
                justify-content: center;
            }
        }

        body {
            padding-bottom: 0;
        }

        .float-bar-gap {
            height: 68px;
            display: none;
        }

        @media (max-width: 640px) {
            body.float-active {
                padding-bottom: 56px;
            }
        }

        /* ===== focus-visible 无障碍 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: article */
:root {
            --primary: #00C896;
            --primary-hover: #0B9D77;
            --bg-dark: #0B1220;
            --bg-light: #F6F8FB;
            --accent: #F5A623;
            --text-primary: #1E293B;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius-card: 0.75rem;
            --radius-btn: 9999px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 12px 30px rgba(0, 200, 150, 0.12);
        }

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

        body {
            font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        .container {
            max-width: 80rem;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            background-color: var(--bg-dark);
            padding: 1rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 3.5rem;
            gap: 1rem;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            flex-shrink: 0;
        }

        .brand-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 2.25rem;
            height: 2.25rem;
            background: linear-gradient(135deg, var(--primary), #059669);
            border-radius: 0.625rem;
            color: #fff;
        }

        .brand-mark svg {
            width: 1.25rem;
            height: 1.25rem;
        }

        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .brand-name span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
        }

        .nav-links a {
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.875rem;
            font-weight: 500;
            padding: 0.375rem 0.25rem;
            border-bottom: 2px solid transparent;
            transition: all 0.25s ease;
        }

        .nav-links a:hover {
            color: #fff;
        }

        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 2rem;
            padding: 0.375rem 1rem;
            width: 13rem;
            transition: all 0.3s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.15);
        }

        .search-box i {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8125rem;
        }

        .search-box input {
            width: 100%;
            color: #fff;
            font-size: 0.8125rem;
            background: transparent;
        }

        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 700;
            padding: 0.625rem 1.375rem;
            border-radius: var(--radius-btn);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: #00b687;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 200, 150, 0.25);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(0, 200, 150, 0.4);
            outline-offset: 2px;
        }

        .btn-primary i {
            transition: transform 0.3s ease;
        }

        .btn-primary:hover i {
            transform: translateX(4px);
        }

        .mobile-menu-toggle {
            display: none;
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 0.625rem;
            align-items: center;
            justify-content: center;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            font-size: 1rem;
            transition: all 0.2s ease;
        }

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

        .mobile-menu {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(11, 18, 32, 0.98);
            z-index: 100;
            padding: 5rem 2rem 2rem;
            flex-direction: column;
            gap: 0.25rem;
        }

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

        .mobile-menu a {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 600;
            padding: 1rem 0.75rem;
            border-left: 3px solid transparent;
            transition: all 0.2s ease;
        }

        .mobile-menu a:hover {
            border-left-color: var(--primary);
            background: rgba(255, 255, 255, 0.05);
        }

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

        .mobile-menu-close {
            position: absolute;
            top: 1.25rem;
            right: 1.25rem;
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 0.625rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 1.25rem;
            cursor: pointer;
        }

        @media (max-width: 767px) {
            .nav-links {
                display: none;
            }

            .search-box {
                display: none;
            }

            .header-right .btn-primary {
                display: none;
            }

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

        /* ===== 面包屑 ===== */
        .breadcrumb {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 0.875rem 0;
            font-size: 0.8125rem;
        }

        .breadcrumb .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.375rem;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s;
        }

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

        .breadcrumb .sep {
            color: #CBD5E1;
        }

        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 2.5rem 0 3rem;
        }

        .article-header {
            text-align: center;
            margin-bottom: 1.5rem;
        }

        .article-header h1 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.25rem;
            color: var(--text-secondary);
            font-size: 0.8125rem;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
        }

        .article-meta i {
            color: var(--primary);
        }

        .article-meta a:hover {
            color: var(--primary);
        }

        .article-cover {
            margin-bottom: 2rem;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .article-cover img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }

        .article-content {
            font-size: 1rem;
            line-height: 1.85;
            color: #334155;
            margin-bottom: 2rem;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #f1f5f9;
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 2rem 0 0.75rem;
        }

        .article-content h4 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 1.5rem 0 0.5rem;
        }

        .article-content p {
            margin-bottom: 1.25rem;
        }

        .article-content a {
            color: var(--primary);
            font-weight: 500;
            border-bottom: 1px solid rgba(0, 200, 150, 0.3);
            transition: all 0.2s;
        }

        .article-content a:hover {
            color: var(--primary-hover);
            border-bottom-color: var(--primary-hover);
        }

        .article-content img {
            border-radius: var(--radius-card);
            margin: 2rem 0;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: #F0FDFA;
            padding: 1rem 1.25rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            color: #0f766e;
        }

        .article-content ul {
            margin: 1rem 0 1.5rem;
            padding-left: 1.5rem;
            list-style: disc;
        }

        .article-content ol {
            margin: 1rem 0 1.5rem;
            padding-left: 1.5rem;
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 0.5rem;
            line-height: 1.8;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .article-content table th {
            background: #f8fafc;
            font-weight: 600;
            text-align: left;
            padding: 0.75rem 1rem;
            border-bottom: 1px solid var(--border);
            color: var(--text-primary);
        }

        .article-content table td {
            padding: 0.625rem 1rem;
            border-bottom: 1px solid #f1f5f9;
        }

        .article-content pre {
            background: #0f172a;
            color: #e2e8f0;
            padding: 1.25rem;
            border-radius: var(--radius-card);
            overflow-x: auto;
            margin: 1.5rem 0;
            font-size: 0.875rem;
        }

        .article-content code {
            font-family: "SF Mono", "Consolas", monospace;
        }

        /* 标签区 */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border);
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            font-size: 0.75rem;
            background: #f1f5f9;
            color: var(--text-secondary);
            padding: 0.375rem 0.875rem;
            border-radius: 2rem;
            font-weight: 500;
            transition: all 0.2s ease;
        }

        .tag-chip:hover {
            background: #e2e8f0;
            color: var(--text-primary);
        }

        /* 无文章提示 */
        .not-found {
            text-align: center;
            padding: 4rem 1.5rem;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px dashed #cbd5e1;
            max-width: 36rem;
            margin: 0 auto;
        }

        .not-found i {
            font-size: 3rem;
            color: #94a3b8;
            margin-bottom: 1rem;
        }

        .not-found p {
            font-size: 1.125rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 3rem 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.5rem;
        }

        .section-header h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .view-all {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: var(--primary);
            font-weight: 500;
            transition: all 0.2s;
        }

        .view-all:hover {
            color: var(--primary-hover);
        }

        .view-all:hover i {
            transform: translateX(3px);
        }

        .view-all i {
            transition: transform 0.3s;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(1, 1fr);
            gap: 1.25rem;
        }

        @media (min-width: 768px) {
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .related-card {
            display: flex;
            gap: 0.875rem;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 0.75rem;
            transition: all 0.25s ease;
        }

        .related-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .related-thumb {
            width: 4rem;
            height: 4rem;
            border-radius: 0.5rem;
            overflow: hidden;
            flex-shrink: 0;
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }

        .related-info h3 {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 0.375rem;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .related-card:hover .related-info h3 {
            color: var(--primary);
        }

        .related-info .time {
            font-size: 0.75rem;
            color: #94a3b8;
        }

        /* ===== 上下篇 ===== */
        .prev-next {
            padding: 2rem 0;
            background: #fff;
        }

        .prev-next .container {
            display: flex;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .prev-next a {
            display: inline-flex;
            align-items: center;
            gap: 0.625rem;
            font-size: 0.875rem;
            color: var(--text-secondary);
            padding: 0.75rem 1.25rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: all 0.25s ease;
            max-width: 46%;
        }

        .prev-next a:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: #F0FDFA;
        }

        .prev-next a i {
            transition: transform 0.3s;
        }

        .prev-next a.prev-link:hover i {
            transform: translateX(-4px);
        }

        .prev-next a.next-link:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 640px) {
            .prev-next .container {
                flex-direction: column;
                align-items: stretch;
            }

            .prev-next a {
                max-width: 100%;
                justify-content: center;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: linear-gradient(rgba(11, 18, 32, 0.85), rgba(11, 18, 32, 0.9)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 4rem 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 1.5rem;
        }

        .cta-badge {
            display: inline-block;
            background: rgba(245, 166, 35, 0.15);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.375rem 0.875rem;
            border-radius: 2rem;
            margin-bottom: 1.25rem;
            border: 1px solid rgba(245, 166, 35, 0.25);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.2fr 0.8fr 1fr;
                gap: 3rem;
            }
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.7;
            margin-top: 0.75rem;
            max-width: 22rem;
        }

        .footer-links h4,
        .footer-contact h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-links ul,
        .footer-contact ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.625rem;
        }

        .footer-links a {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s;
        }

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-size: 0.875rem;
            margin-bottom: 0.75rem;
        }

        .footer-contact li svg {
            width: 1rem;
            height: 1rem;
            color: var(--primary);
            flex-shrink: 0;
            fill: currentColor;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.25rem 0;
            text-align: center;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 底部悬浮转化条 ===== */
        .float-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 40;
            background: rgba(11, 18, 32, 0.96);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            padding: 0.875rem 0;
            transform: translateY(120%);
            transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            box-shadow: 0 -6px 24px rgba(0, 0, 0, 0.2);
        }

        .float-bar.visible {
            transform: translateY(0);
        }

        .float-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        .float-bar .bar-text {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            gap: 0.625rem;
        }

        .float-bar .bar-text i {
            color: var(--primary);
        }

        .float-bar .btn-primary {
            padding: 0.5rem 1.25rem;
            font-size: 0.8125rem;
        }

        @media (max-width: 640px) {
            .float-bar .bar-text {
                display: none;
            }

            .float-bar .container {
                justify-content: center;
            }

            .float-bar .btn-primary {
                width: 100%;
                justify-content: center;
            }
        }

        body {
            padding-bottom: 0;
        }