/* roulang page: index */
:root {
            --bs-font-sans-serif: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --primary: #1D4ED8;
            --primary-hover: #1e40af;
            --primary-light: #EFF6FF;
            --secondary: #0EA5E9;
            --accent: #F97316;
            --dark-navy: #0F172A;
            --navy-surface: #1E293B;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --bg-body: #FFFFFF;
            --bg-alt: #F8FAFC;
            --bg-subtle: #F1F5F9;
            --card-border: rgba(226, 232, 240, 0.85);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-card: 16px;
            --radius-pill: 9999px;
            --shadow-subtle: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 20px 25px -5px rgba(29, 78, 216, 0.1);
            --transition-smooth: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--bs-font-sans-serif);
            color: var(--text-body);
            background-color: var(--bg-body);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-heading);
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.02em;
        }

        /* 顶部悬浮胶囊导航 */
        .capsule-nav-wrapper {
            position: fixed;
            top: 18px;
            left: 0;
            right: 0;
            z-index: 1040;
            pointer-events: none;
            padding: 0 16px;
        }

        .capsule-nav-container {
            max-width: 1240px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-pill);
            box-shadow: 0 10px 30px -4px rgba(15, 23, 42, 0.08);
            pointer-events: auto;
            padding: 8px 14px 8px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.22rem;
            color: var(--primary);
            letter-spacing: -0.01em;
        }

        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-size: 1.1rem;
            box-shadow: 0 4px 10px rgba(29, 78, 216, 0.25);
        }

        .nav-links-menu {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-link-custom {
            font-size: 0.93rem;
            font-weight: 600;
            color: var(--text-body);
            padding: 6px 4px;
            position: relative;
        }

        .nav-link-custom:hover {
            color: var(--primary);
        }

        .nav-cta-btn {
            background-color: var(--primary);
            color: #ffffff !important;
            padding: 8px 22px;
            font-size: 0.92rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            box-shadow: 0 4px 14px rgba(29, 78, 216, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-cta-btn:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(29, 78, 216, 0.35);
        }

        /* 移动端菜单折叠层 */
        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.4rem;
            color: var(--text-heading);
            padding: 4px 8px;
        }

        .mobile-drawer {
            display: none;
        }

        @media (max-width: 991px) {
            .nav-links-menu {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .capsule-nav-container {
                padding: 8px 16px;
            }
            .mobile-drawer.show {
                display: block;
                position: fixed;
                top: 76px;
                left: 16px;
                right: 16px;
                background: #ffffff;
                border: 1px solid var(--card-border);
                border-radius: var(--radius-card);
                padding: 20px;
                box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
                z-index: 1041;
            }
            .mobile-drawer-link {
                display: block;
                padding: 10px 0;
                font-weight: 600;
                color: var(--text-heading);
                border-bottom: 1px solid var(--bg-alt);
            }
        }

        /* 通用排版与板块系统 */
        .section-py {
            padding-top: 86px;
            padding-bottom: 86px;
        }

        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background-color: var(--primary-light);
            color: var(--primary);
            margin-bottom: 14px;
        }

        .section-badge-dark {
            background-color: rgba(14, 165, 233, 0.15);
            color: var(--secondary);
        }

        .section-title {
            font-size: 2.15rem;
            margin-bottom: 14px;
            color: var(--text-heading);
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto 46px;
        }

        /* 卡片通用组件 */
        .platform-card {
            background: #ffffff;
            border: 1px solid var(--card-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-smooth);
            height: 100%;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .platform-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(29, 78, 216, 0.2);
        }

        /* 板块1：矮横幅全宽顶栏 Hero */
        .hero-banner-wrap {
            padding-top: 105px;
            background: linear-gradient(180deg, #F0F6FF 0%, #FFFFFF 100%);
            border-bottom: 1px solid var(--card-border);
        }

        .hero-banner {
            position: relative;
            border-radius: var(--radius-card);
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(29, 78, 216, 0.82) 100%), url('/assets/images/a85479aa4c35f683.jpg') center/cover no-repeat;
            color: #ffffff;
            padding: 58px 42px;
            box-shadow: 0 20px 45px -10px rgba(15, 23, 42, 0.18);
            margin-bottom: 24px;
        }

        .hero-badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.16);
            backdrop-filter: blur(8px);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.84rem;
            font-weight: 600;
            margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .hero-main-title {
            font-size: 2.45rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .hero-lead-text {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 860px;
            margin-bottom: 28px;
            line-height: 1.75;
        }

        .hero-btn-primary {
            background-color: var(--accent);
            color: #ffffff;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.4);
        }

        .hero-btn-primary:hover {
            background-color: #ea580c;
            color: #ffffff;
            transform: translateY(-2px);
        }

        .hero-btn-secondary {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            color: #ffffff;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, 0.35);
        }

        .hero-btn-secondary:hover {
            background: rgba(255, 255, 255, 0.25);
            color: #ffffff;
        }

        .hero-pill-indicator {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.18);
        }

        .indicator-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.85);
        }

        .indicator-dot {
            width: 8px;
            height: 8px;
            background-color: #22c55e;
            border-radius: 50%;
            box-shadow: 0 0 8px #22c55e;
        }

        /* 痛点对比卡片 */
        .pain-card {
            border-left: 4px solid #ef4444;
            padding: 28px;
        }

        .pain-tag {
            font-size: 0.78rem;
            font-weight: 700;
            color: #ef4444;
            background: #fef2f2;
            padding: 3px 10px;
            border-radius: var(--radius-sm);
            display: inline-block;
            margin-bottom: 12px;
        }

        /* 架构区参数徽章 */
        .tech-spec-bar {
            background: var(--bg-alt);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 24px;
        }

        /* 优势网格六卡片 */
        .adv-card {
            padding: 32px 26px;
        }

        .adv-icon-wrap {
            width: 52px;
            height: 52px;
            background: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.45rem;
            margin-bottom: 20px;
        }

        /* 产品场景矩阵大卡片 */
        .feature-card {
            overflow: hidden;
        }

        .feature-card-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: var(--transition-smooth);
        }

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

        .feature-body {
            padding: 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        /* 深色沉浸理念区 */
        .philosophy-section {
            background-color: var(--dark-navy);
            color: #ffffff;
            position: relative;
            background-image: radial-gradient(circle at 10% 20%, rgba(29, 78, 216, 0.25) 0%, transparent 40%), radial-gradient(circle at 90% 80%, rgba(14, 165, 233, 0.2) 0%, transparent 40%);
        }

        .philosophy-card {
            background: var(--navy-surface);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 32px;
            height: 100%;
            transition: var(--transition-smooth);
        }

        .philosophy-card:hover {
            border-color: var(--secondary);
            transform: translateY(-4px);
            box-shadow: 0 16px 30px rgba(0, 0, 0, 0.35);
        }

        /* 四步路径步骤轴 */
        .step-box {
            position: relative;
            padding: 28px 22px;
            background: #ffffff;
            border: 1px solid var(--card-border);
            border-radius: var(--radius-card);
            height: 100%;
        }

        .step-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.25;
            line-height: 1;
            margin-bottom: 8px;
        }

        /* 达人真实故事区 */
        .creator-story-card {
            padding: 32px;
            background: #ffffff;
            border: 1px solid var(--card-border);
            border-radius: var(--radius-card);
        }

        .creator-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            object-fit: cover;
            border: 3px solid var(--primary-light);
        }

        /* 数据计数指标条 */
        .counter-number {
            font-size: 2.75rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.1;
            margin-bottom: 6px;
        }

        /* 口碑评价卡片 */
        .review-card {
            padding: 28px;
            background: #ffffff;
            border: 1px solid var(--card-border);
            border-radius: var(--radius-card);
        }

        .star-rating {
            color: #f59e0b;
            margin-bottom: 14px;
        }

        /* 资讯速递图文列表 */
        .news-hero-card {
            border-radius: var(--radius-card);
            overflow: hidden;
            background: #ffffff;
            border: 1px solid var(--card-border);
            height: 100%;
        }

        .news-item-horizontal {
            padding: 16px;
            border-radius: var(--radius-md);
            background: #ffffff;
            border: 1px solid var(--card-border);
            margin-bottom: 16px;
            transition: var(--transition-smooth);
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .news-item-horizontal:hover {
            border-color: var(--primary);
            transform: translateX(4px);
        }

        /* 治理指标对比表 */
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--card-border);
        }

        .compare-table th, .compare-table td {
            padding: 18px 22px;
            vertical-align: middle;
        }

        .compare-table thead th {
            background-color: var(--dark-navy);
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 700;
        }

        .compare-table tbody tr:nth-child(even) {
            background-color: var(--bg-alt);
        }

        .highlight-col {
            background-color: rgba(29, 78, 216, 0.04);
            font-weight: 600;
            color: var(--primary);
        }

        /* FAQ 手风琴 */
        .accordion-item {
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
        }

        .accordion-button {
            font-weight: 700;
            color: var(--text-heading);
            padding: 18px 22px;
            background-color: #ffffff;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background-color: var(--primary-light);
            box-shadow: none;
            border-left: 4px solid var(--primary);
        }

        .accordion-body {
            padding: 20px 24px;
            color: var(--text-body);
            background-color: #ffffff;
        }

        /* 底部行动号召 CTA 卡片 */
        .cta-spotlight-box {
            background: linear-gradient(135deg, #0F172A 0%, #1D4ED8 100%);
            border-radius: var(--radius-card);
            color: #ffffff;
            padding: 56px 40px;
            box-shadow: 0 25px 50px -12px rgba(29, 78, 216, 0.35);
        }

        .cta-input-group {
            max-width: 540px;
            margin: 28px auto 14px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            padding: 6px;
            border-radius: var(--radius-pill);
            display: flex;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .cta-input {
            border: none;
            background: transparent;
            color: #ffffff;
            padding: 10px 20px;
            flex: 1;
            outline: none;
            font-size: 0.95rem;
        }

        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }

        .cta-submit-btn {
            background-color: var(--accent);
            color: #ffffff;
            font-weight: 700;
            border: none;
            padding: 10px 26px;
            border-radius: var(--radius-pill);
            transition: var(--transition-smooth);
        }

        .cta-submit-btn:hover {
            background-color: #ea580c;
        }

        /* 页脚规范 */
        .site-footer {
            background-color: #0b1120;
            color: #94a3b8;
            padding-top: 70px;
            padding-bottom: 30px;
            font-size: 0.9rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-heading {
            color: #ffffff;
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-links-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links-list li {
            margin-bottom: 10px;
        }

        .footer-links-list a:hover {
            color: #ffffff;
        }

        .footer-divider {
            border-color: rgba(255, 255, 255, 0.1);
            margin: 40px 0 24px;
        }

        @media (max-width: 767px) {
            .hero-banner {
                padding:34px 20px;
            }
            .hero-main-title {
                font-size: 1.75rem;
            }
            .section-title {
                font-size: 1.65rem;
            }
            .section-py {
                padding-top: 60px;
                padding-bottom: 60px;
            }
            .cta-input-group {
                flex-direction: column;
                background: transparent;
                border: none;
                gap: 12px;
                padding: 0;
            }
            .cta-input {
                background: rgba(255, 255, 255, 0.15);
                border-radius: var(--radius-pill);
                border: 1px solid rgba(255, 255, 255, 0.3);
                width: 100%;
            }
            .cta-submit-btn {
                width: 100%;
            }
        }