/* roulang page: index */
:root {
            --gold: #C8A45C;
            --midnight-blue: #1B2A3B;
            --burgundy: #7B2D3E;
            --ivory: #FAF7F2;
            --white: #FFFFFF;
            --text-primary: #2C2C2C;
            --text-secondary: #6B6B6B;
            --text-on-dark: #FFFFFF;
            --border-light: #E8E3D9;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.04);
            --shadow-hover: 0 12px 32px rgba(0,0,0,0.08);
            --radius-card: 12px;
            --radius-button: 8px;
            --radius-capsule: 40px;
            --font-heading: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-decor: "Playfair Display", "Georgia", serif;
            --transition: all 0.25s ease;
        }

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

        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--white);
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, h4 {
            font-family: var(--font-heading);
            font-weight: 600;
            letter-spacing: -0.02em;
            margin-bottom: 0.5rem;
        }

        h1 {
            font-size: 52px;
            line-height: 1.15;
            font-weight: 700;
        }

        h2 {
            font-size: 36px;
            line-height: 1.25;
            font-weight: 600;
        }

        h3 {
            font-size: 24px;
            line-height: 1.3;
            font-weight: 600;
        }

        p {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }

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

        a:hover {
            color: var(--gold);
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* 胶囊导航 */
        .capsule-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            max-width: 1200px;
            width: calc(100% - 32px);
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-capsule);
            box-shadow: 0 8px 28px rgba(0,0,0,0.06);
            padding: 8px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--midnight-blue);
            letter-spacing: 0.5px;
            position: relative;
            padding-left: 12px;
            border-left: 3px solid var(--gold);
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            font-weight: 500;
        }

        .nav-links a {
            color: var(--text-primary);
            font-size: 0.95rem;
        }

        .nav-links a:hover {
            color: var(--gold);
        }

        .nav-cta {
            background: var(--burgundy);
            color: white !important;
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: #5E1F2E;
            color: white !important;
        }

        .hamburger {
            display: none;
            font-size: 1.6rem;
            color: var(--midnight-blue);
            cursor: pointer;
        }

        /* 首屏 Hero */
        .hero {
            height: 100vh;
            min-height: 650px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            color: white;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27,42,59,0.8) 0%, rgba(27,42,59,0.35) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            padding: 0 20px;
        }

        .hero h1 {
            color: var(--gold);
            text-shadow: 0 4px 12px rgba(0,0,0,0.4);
            font-size: 56px;
            margin-bottom: 1rem;
        }

        .hero-sub {
            font-size: 22px;
            font-weight: 400;
            color: rgba(255,255,255,0.92);
            margin-bottom: 2.5rem;
        }

        .btn-group {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--burgundy);
            color: white;
            padding: 14px 32px;
            border-radius: var(--radius-button);
            font-weight: 600;
            display: inline-block;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #5E1F2E;
            transform: translateY(-2px);
            color: white;
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--gold);
            color: var(--gold);
            padding: 14px 32px;
            border-radius: var(--radius-button);
            font-weight: 600;
            display: inline-block;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: rgba(200,164,92,0.12);
            color: var(--gold);
        }

        /* 通用区块 */
        .section {
            padding: 90px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-title h2 {
            color: var(--midnight-blue);
        }

        .section-title .gold-line {
            width: 60px;
            height: 2px;
            background: var(--gold);
            margin: 16px auto 0;
        }

        /* 核心优势 非对称网格 */
        .features-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.9fr 0.9fr;
            gap: 24px;
            align-items: start;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid rgba(200,164,92,0.15);
            height: 100%;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .feature-icon {
            font-size: 2.8rem;
            color: var(--gold);
            margin-bottom: 1.2rem;
        }

        /* 服务矩阵 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }

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

        .service-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .service-img {
            height: 220px;
            object-fit: cover;
            transition: transform 0.4s;
        }

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

        .service-text {
            padding: 24px;
        }

        /* 数据区 */
        .data-section {
            background: linear-gradient(180deg, #FAF7F2 0%, #FFFFFF 100%);
        }

        .stats-grid {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 30px;
            text-align: center;
        }

        .stat-number {
            font-family: var(--font-decor);
            font-size: 52px;
            font-weight: 700;
            color: var(--gold);
            line-height: 1.1;
        }

        .stat-label {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-top: 0.5rem;
        }

        /* 案例横向滚动 */
        .cases-scroll {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            padding-bottom: 16px;
        }

        .case-card {
            min-width: 300px;
            max-width: 340px;
            background: white;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            scroll-snap-align: start;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .case-card:hover {
            box-shadow: var(--shadow-hover);
            transform: scale(1.02);
        }

        .case-img {
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .case-info {
            padding: 20px;
        }

        .tag {
            background: rgba(200,164,92,0.18);
            color: #B38B40;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 8px;
        }

        /* 流程时间线 */
        .process-timeline {
            display: flex;
            flex-direction: column;
            gap: 28px;
            position: relative;
            padding-left: 40px;
        }

        .process-step {
            position: relative;
            padding-left: 32px;
        }

        .process-step::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--gold);
            border-radius: 50%;
            z-index: 2;
        }

        .process-step::after {
            content: '';
            position: absolute;
            left: 14px;
            top: 28px;
            bottom: -28px;
            width: 2px;
            background: rgba(200,164,92,0.35);
        }

        .process-step:last-child::after {
            display: none;
        }

        /* FAQ */
        .accordion-title {
            font-weight: 600;
            font-size: 1.1rem;
            background: transparent;
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .accordion-title .q-icon {
            color: var(--gold);
            font-weight: 700;
            font-size: 1.2rem;
        }

        .accordion-content {
            padding: 14px 0 24px;
            color: var(--text-secondary);
        }

        /* CTA */
        .cta-block {
            background: var(--midnight-blue);
            text-align: center;
            padding: 80px 20px;
        }

        .cta-block h2 {
            color: white;
        }

        .btn-gold {
            background: var(--gold);
            color: var(--midnight-blue);
            font-weight: 700;
            padding: 14px 36px;
            border-radius: var(--radius-button);
            display: inline-block;
            margin-top: 24px;
            transition: var(--transition);
        }

        .btn-gold:hover {
            background: #dbb45e;
            color: #0f1a26;
        }

        /* 页脚 */
        .footer {
            background: #0f1722;
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 30px;
        }

        .footer a {
            color: rgba(255,255,255,0.65);
        }

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

        .footer-brand {
            font-weight: 700;
            font-size: 1.3rem;
            color: white;
        }

        @media (max-width: 1024px) {
            h1 { font-size: 44px; }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .capsule-nav {
                padding: 8px 20px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 8px;
                right: 8px;
                background: rgba(255,255,255,0.95);
                backdrop-filter: blur(16px);
                border-radius: 28px;
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 12px 28px rgba(0,0,0,0.1);
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 36px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 60px 0;
            }
        }