/* roulang page: index */
:root {
            --bg-deep: #1A0A2E;
            --bg-dark: #0f0618;
            --bg-card: rgba(255, 255, 255, 0.05);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --gold: #C9A96E;
            --gold-light: #e0c78a;
            --gold-glow: rgba(201, 169, 110, 0.35);
            --red: #8B2E2E;
            --red-light: #b53d3d;
            --green: #1E3B2E;
            --green-light: #2a5240;
            --text-primary: #f0e6d8;
            --text-secondary: #b8a99a;
            --text-muted: #7a6e62;
            --text-white: #faf7f2;
            --border-gold: rgba(201, 169, 110, 0.35);
            --border-gold-light: rgba(201, 169, 110, 0.6);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.55), 0 0 0 1px var(--border-gold-light);
            --shadow-glow: 0 0 24px rgba(201, 169, 110, 0.25);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-width: 220px;
            --max-width: 1200px;
            --section-gap: 80px;
            --section-pad: 5rem 2rem;
            --card-pad: 1.5rem;
            --font-heading: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', '思源黑体', sans-serif;
            --font-body: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-deep);
            background-image:
                radial-gradient(ellipse at 25% 15%, rgba(139, 46, 46, 0.12) 0%, transparent 55%),
                radial-gradient(ellipse at 70% 60%, rgba(201, 169, 110, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 40% 80%, rgba(30, 59, 46, 0.1) 0%, transparent 50%),
                linear-gradient(180deg, var(--bg-deep) 0%, #0f0618 40%, #0c0415 100%);
            background-attachment: fixed;
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            position: relative;
        }

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            pointer-events: none;
            z-index: 0;
            background-image:
                repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 255, 255, 0.004) 2px, rgba(255, 255, 255, 0.004) 3px),
                repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255, 255, 255, 0.003) 2px, rgba(255, 255, 255, 0.003) 3px);
            opacity: 0.6;
        }

        a {
            color: var(--gold);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--gold-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-white);
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        .nav-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: rgba(15, 6, 24, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-right: 1px solid var(--border-gold);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 1.8rem 0;
            transition: transform var(--transition-slow);
            box-shadow: 2px 0 30px rgba(0, 0, 0, 0.5);
        }

        .nav-logo {
            padding: 0 1.5rem 1.5rem;
            border-bottom: 1px solid rgba(201, 169, 110, 0.2);
            margin-bottom: 1.5rem;
        }
        .nav-logo a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 0.04em;
            white-space: nowrap;
        }
        .nav-logo a i {
            font-size: 1.4rem;
            color: var(--gold-light);
        }
        .nav-logo a:hover {
            color: var(--gold-light);
        }

        .nav-menu {
            flex: 1;
            display: flex;
            flex-direction: column;
            padding: 0 0.75rem;
        }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            border-left: 3px solid transparent;
            margin-bottom: 0.2rem;
        }
        .nav-menu a i {
            width: 1.2rem;
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            background: var(--bg-card-hover);
            color: var(--gold);
            border-left-color: var(--gold);
        }
        .nav-menu a:hover i,
        .nav-menu a.active i {
            color: var(--gold);
        }
        .nav-menu a.active {
            font-weight: 600;
        }

        .nav-footer {
            padding: 1rem 1.5rem;
            border-top: 1px solid rgba(201, 169, 110, 0.15);
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .mobile-nav-toggle {
            display: none;
            position: fixed;
            top: 0.8rem;
            left: 0.8rem;
            z-index: 1100;
            background: rgba(15, 6, 24, 0.9);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            color: var(--gold);
            width: 42px;
            height: 42px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
        }
        .mobile-nav-toggle:hover {
            background: rgba(201, 169, 110, 0.15);
            border-color: var(--gold-light);
        }

        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.7);
            z-index: 999;
            transition: opacity var(--transition-normal);
        }
        .nav-overlay.active {
            display: block;
            opacity: 1;
        }

        .main-content {
            margin-left: var(--nav-width);
            position: relative;
            z-index: 1;
            min-height: 100vh;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        section {
            padding: var(--section-pad);
            position: relative;
        }
        section+section {
            margin-top: 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--gold);
            font-weight: 600;
            margin-bottom: 0.6rem;
            padding: 0.3rem 0.8rem;
            border: 1px solid var(--border-gold);
            border-radius: 20px;
            background: rgba(201, 169, 110, 0.06);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.5rem;
            letter-spacing: 0.02em;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
            margin-bottom: 2rem;
        }

        .hero-section {
            padding-top: 4rem;
            padding-bottom: 3rem;
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 40% 50%, rgba(201, 169, 110, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 65% 30%, rgba(139, 46, 46, 0.06) 0%, transparent 50%);
            z-index: 0;
        }
        .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 3rem;
        }
        .hero-text {
            flex: 1;
            min-width: 280px;
        }
        .hero-text h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }
        .hero-text h1 .highlight {
            color: var(--gold);
            position: relative;
        }
        .hero-text .hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 1.8rem;
            max-width: 550px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.6rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-normal);
            border: none;
            text-decoration: none;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--gold);
            color: #1A0A2E;
            box-shadow: 0 2px 12px rgba(201, 169, 110, 0.3);
        }
        .btn-primary:hover {
            background: var(--gold-light);
            box-shadow: 0 4px 22px rgba(201, 169, 110, 0.45);
            transform: translateY(-1px);
            color: #1A0A2E;
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 1px 6px rgba(201, 169, 110, 0.3);
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--border-gold);
            color: var(--gold);
        }
        .btn-outline:hover {
            background: rgba(201, 169, 110, 0.1);
            border-color: var(--gold-light);
            color: var(--gold-light);
            box-shadow: 0 0 16px rgba(201, 169, 110, 0.2);
        }
        .btn-accent {
            background: var(--red);
            color: #faf7f2;
            box-shadow: 0 2px 12px rgba(139, 46, 46, 0.35);
        }
        .btn-accent:hover {
            background: var(--red-light);
            box-shadow: 0 4px 20px rgba(139, 46, 46, 0.5);
            transform: translateY(-1px);
            color: #faf7f2;
        }
        .btn-accent:active {
            transform: translateY(1px);
        }
        .hero-visual {
            flex: 1;
            min-width: 260px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-data-preview {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.8rem;
            width: 100%;
            max-width: 380px;
        }
        .hero-data-preview .mini-stat {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 1rem;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .mini-stat .mini-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--gold);
            font-family: var(--font-heading);
        }
        .mini-stat .mini-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 0.2rem;
        }

        .stats-section {
            background: rgba(10, 4, 18, 0.7);
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            z-index: 0;
        }
        .stats-scroll {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 1.2rem;
            overflow-x: auto;
            padding: 0.5rem 0;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-gold) transparent;
        }
        .stats-scroll::-webkit-scrollbar {
            height: 4px;
        }
        .stats-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .stats-scroll::-webkit-scrollbar-thumb {
            background: var(--border-gold);
            border-radius: 4px;
        }
        .stat-card {
            flex: 0 0 240px;
            scroll-snap-align: start;
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .stat-card::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(201, 169, 110, 0.04) 0%, transparent 70%);
            pointer-events: none;
        }
        .stat-card:hover {
            border-color: var(--gold-light);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .stat-icon {
            font-size: 2rem;
            color: var(--gold);
            margin-bottom: 0.6rem;
            position: relative;
            z-index: 1;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--gold);
            font-family: var(--font-heading);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
            position: relative;
            z-index: 1;
        }
        .stat-pulse {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #4caf50;
            border-radius: 50%;
            margin-right: 0.4rem;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(76, 175, 80, 0);
            }
        }

        .services-section {
            position: relative;
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.2rem;
            position: relative;
            z-index: 1;
        }
        .service-card {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: var(--card-pad);
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            transition: all var(--transition-normal);
            cursor: pointer;
            position: relative;
            overflow: hidden;
            text-decoration: none;
            color: inherit;
        }
        .service-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--gold-light);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .service-card .card-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(201, 169, 110, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--gold);
            border: 1px solid rgba(201, 169, 110, 0.25);
            transition: all var(--transition-fast);
        }
        .service-card:hover .card-icon {
            background: rgba(201, 169, 110, 0.2);
            border-color: var(--gold);
            box-shadow: 0 0 14px rgba(201, 169, 110, 0.3);
        }
        .service-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 0.3rem;
            letter-spacing: 0.02em;
        }
        .service-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .service-card .card-arrow {
            position: absolute;
            right: 1.2rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 0.8rem;
            color: var(--gold);
            opacity: 0;
            transition: all var(--transition-fast);
        }
        .service-card:hover .card-arrow {
            opacity: 1;
            right: 0.8rem;
        }

        .about-brief {
            background: rgba(10, 4, 18, 0.5);
            border-top: 1px solid rgba(201, 169, 110, 0.12);
            border-bottom: 1px solid rgba(201, 169, 110, 0.12);
        }
        .about-brief .about-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
            align-items: center;
        }
        .about-brief .about-text {
            flex: 1;
            min-width: 260px;
        }
        .about-brief .about-text h2 {
            font-size: 1.6rem;
            margin-bottom: 0.8rem;
            color: var(--text-white);
        }
        .about-brief .about-text p {
            color: var(--text-secondary);
            line-height: 1.75;
            font-size: 0.95rem;
        }
        .about-brief .about-img {
            flex: 1;
            min-width: 240px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-gold);
        }
        .about-brief .about-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/10;
        }

        .compare-section {
            position: relative;
        }
        .compare-table-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            position: relative;
            z-index: 1;
        }
        .compare-col {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all var(--transition-normal);
        }
        .compare-col.featured {
            border-color: var(--gold-light);
            box-shadow: 0 0 28px rgba(201, 169, 110, 0.18);
            position: relative;
        }
        .compare-col.featured::before {
            content: '精选推荐';
            position: absolute;
            top: -14px;
            right: 1.5rem;
            background: var(--gold);
            color: #1A0A2E;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.05em;
        }
        .compare-col h3 {
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            color: var(--text-white);
            text-align: center;
        }
        .compare-col.featured h3 {
            color: var(--gold);
        }
        .compare-list {
            list-style: none;
            padding: 0;
        }
        .compare-list li {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 0.7rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .compare-list li i {
            font-size: 0.85rem;
        }
        .compare-list li i.fa-check {
            color: var(--green-light);
        }
        .compare-list li i.fa-times {
            color: #6b3a3a;
        }
        .compare-list li i.fa-star {
            color: var(--gold);
        }
        .compare-star-bar {
            display: flex;
            gap: 3px;
            margin-left: auto;
        }
        .compare-star-bar .star-filled {
            color: var(--gold);
            font-size: 0.75rem;
        }
        .compare-star-bar .star-empty {
            color: #3a3030;
            font-size: 0.75rem;
        }

        .guarantee-section {
            background: rgba(10, 4, 18, 0.5);
        }
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
            position: relative;
            z-index: 1;
        }
        .guarantee-item {
            text-align: center;
            padding: 1.5rem 1rem;
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .guarantee-item:hover {
            border-color: var(--gold-light);
            box-shadow: var(--shadow-card-hover);
        }
        .guarantee-item .g-icon {
            font-size: 2rem;
            color: var(--gold);
            margin-bottom: 0.6rem;
        }
        .guarantee-item h4 {
            font-size: 0.95rem;
            color: var(--text-white);
            margin-bottom: 0.3rem;
        }
        .guarantee-item p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

        .safety-section {
            position: relative;
        }
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.2rem;
            position: relative;
            z-index: 1;
        }
        .safety-card {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .safety-card:hover {
            border-color: var(--gold-light);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .safety-card .s-icon {
            font-size: 2.2rem;
            color: var(--green-light);
            margin-bottom: 0.6rem;
        }
        .safety-card h4 {
            font-size: 1rem;
            color: var(--text-white);
            margin-bottom: 0.4rem;
        }
        .safety-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .faq-section {
            background: rgba(10, 4, 18, 0.5);
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        .faq-item {
            border: 1px solid rgba(201, 169, 110, 0.2);
            border-radius: var(--radius-md);
            margin-bottom: 0.6rem;
            background: var(--bg-card);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        .faq-item summary {
            padding: 1.1rem 1.5rem;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 0.7rem;
            list-style: none;
            transition: color var(--transition-fast);
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gold);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .faq-item[open] summary::before {
            box-shadow: 0 0 10px var(--gold-glow);
            background: var(--gold-light);
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            margin-left: auto;
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--gold);
        }
        .faq-item .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            animation: fadeInDown 0.3s ease;
        }
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .cta-section {
            text-align: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin: 0 auto;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 2.5rem 2rem;
            box-shadow: var(--shadow-card);
        }
        .cta-inner h2 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
            color: var(--text-white);
        }
        .cta-inner .cta-hint {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .cta-form input {
            width: 100%;
            padding: 0.8rem 1rem;
            background: rgba(0, 0, 0, 0.5);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            outline: none;
        }
        .cta-form input:focus {
            border-color: var(--gold-light);
            box-shadow: 0 0 14px rgba(201, 169, 110, 0.25);
            background: rgba(0, 0, 0, 0.65);
        }
        .cta-form input::placeholder {
            color: var(--text-muted);
        }
        .cta-form .btn-accent {
            width: 100%;
            justify-content: center;
            padding: 0.85rem;
            font-size: 1rem;
        }

        .news-section {
            position: relative;
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 2rem;
            position: relative;
            z-index: 1;
        }
        .news-list-col h3 {
            font-size: 1.2rem;
            color: var(--text-white);
            margin-bottom: 1rem;
            padding-bottom: 0.6rem;
            border-bottom: 1px solid rgba(201, 169, 110, 0.2);
        }
        .news-list-col ul {
            list-style: none;
            padding: 0;
        }
        .news-list-col ul li {
            padding: 0.65rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: all var(--transition-fast);
        }
        .news-list-col ul li:hover {
            padding-left: 0.4rem;
        }
        .news-list-col ul li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: color var(--transition-fast);
        }
        .news-list-col ul li a:hover {
            color: var(--gold);
        }
        .news-list-col ul li a::before {
            content: '';
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--gold);
            flex-shrink: 0;
            opacity: 0.6;
        }
        .news-list-col ul li .news-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-left: auto;
            flex-shrink: 0;
        }
        .news-side-col {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            height: fit-content;
        }
        .news-side-col h3 {
            font-size: 1.1rem;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }
        .news-side-col .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .news-side-col .tag {
            display: inline-block;
            padding: 0.35rem 0.8rem;
            background: rgba(201, 169, 110, 0.08);
            border: 1px solid rgba(201, 169, 110, 0.25);
            border-radius: 20px;
            font-size: 0.78rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .news-side-col .tag:hover {
            background: rgba(201, 169, 110, 0.18);
            border-color: var(--gold);
            color: var(--gold);
        }

        .site-footer {
            background: rgba(8, 3, 16, 0.9);
            border-top: 1px solid rgba(201, 169, 110, 0.2);
            padding: 3rem 2rem 1.5rem;
            position: relative;
            z-index: 1;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .footer-col h4 {
            color: var(--gold);
            font-size: 1rem;
            margin-bottom: 0.8rem;
            letter-spacing: 0.04em;
        }
        .footer-col p,
        .footer-col a {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: block;
        }
        .footer-col a:hover {
            color: var(--gold-light);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(201, 169, 110, 0.1);
            font-size: 0.78rem;
            color: var(--text-muted);
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .safety-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-table-wrap {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .hero-data-preview {
                grid-template-columns: 1fr 1fr;
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-width: 0px;
                --section-gap: 48px;
                --section-pad: 3rem 1rem;
            }
            .nav-sidebar {
                transform: translateX(-100%);
                width: 260px;
                box-shadow: 4px 0 30px rgba(0, 0, 0, 0.7);
            }
            .nav-sidebar.open {
                transform: translateX(0);
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .nav-overlay.active {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            section {
                padding: var(--section-pad);
            }
            .hero-section {
                padding-top: 4.5rem;
                min-height: auto;
            }
            .hero-inner {
                flex-direction: column;
                gap: 1.5rem;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-text .hero-desc {
                font-size: 0.9rem;
            }
            .hero-data-preview {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }
            .mini-stat .mini-num {
                font-size: 1.3rem;
            }
            .stats-scroll {
                gap: 0.8rem;
            }
            .stat-card {
                flex: 0 0 180px;
                padding: 1rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
            }
            .safety-grid {
                grid-template-columns: 1fr;
            }
            .compare-table-wrap {
                grid-template-columns: 1fr;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-inner {
                padding: 1.8rem 1.2rem;
            }
            .about-brief .about-inner {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-data-preview {
                grid-template-columns: 1fr;
                gap: 0.5rem;
            }
            .stat-card {
                flex: 0 0 150px;
                padding: 0.8rem;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .btn {
                padding: 0.6rem 1.1rem;
                font-size: 0.85rem;
            }
            .compare-col {
                padding: 1.2rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
        }