/* roulang page: index */
:root {
            --primary: #0D52D6;
            --primary-hover: #093eb5;
            --primary-light: #EBF2FF;
            --accent-green: #00B42A;
            --accent-cyan: #0FC6C2;
            --text-dark: #1D2129;
            --text-medium: #4E5969;
            --text-light: #86909C;
            --bg-canvas: #F7F9FC;
            --bg-white: #FFFFFF;
            --bg-dark: #0B132B;
            --bg-dark-card: #141E3C;
            --border-light: #E5E6EB;
            --shadow-subtle: 0 4px 20px rgba(13, 82, 214, 0.06);
            --shadow-hover: 0 12px 32px rgba(13, 82, 214, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        /* 基础重置 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-canvas);
            color: var(--text-dark);
            line-height: 1.68;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.25s ease;
        }
        a:hover, a:focus {
            color: var(--primary-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 浮动胶囊导航 */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 16px;
        }
        .nav-capsule {
            max-width: 1240px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(229, 230, 235, 0.85);
            border-radius: var(--radius-pill);
            box-shadow: 0 6px 28px rgba(13, 82, 214, 0.08);
            padding: 8px 24px;
            transition: all 0.3s ease;
        }
        .nav-top-meta {
            font-size: 12px;
            color: var(--text-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(229, 230, 235, 0.6);
            padding-bottom: 4px;
            margin-bottom: 6px;
        }
        .nav-top-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.2px;
        }
        .brand-pulse {
            width: 10px;
            height: 10px;
            background: var(--accent-green);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 0 rgba(0, 180, 42, 0.7);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0% { box-shadow: 0 0 0 0 rgba(0, 180, 42, 0.7); }
            70% { box-shadow: 0 0 0 8px rgba(0, 180, 42, 0); }
            100% { box-shadow: 0 0 0 0 rgba(0, 180, 42, 0); }
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 20px;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            color: var(--text-dark);
            font-weight: 500;
            font-size: 14px;
            padding: 6px 4px;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-cta-btn {
            background: linear-gradient(135deg, #0D52D6 0%, #165DFF 100%);
            color: #fff !important;
            padding: 9px 20px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 14px rgba(13, 82, 214, 0.28);
        }
        .nav-cta-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(13, 82, 214, 0.38);
        }

        /* 移动端菜单开关 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 20px;
            color: var(--text-dark);
            cursor: pointer;
        }

        /* 通用 Section 样式规范 */
        .section-block {
            padding: 95px 0;
            position: relative;
        }
        .section-block.bg-alt {
            background-color: #EEF2F8;
        }
        .section-block.bg-dark {
            background-color: var(--bg-dark);
            color: #fff;
        }
        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 55px;
        }
        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .bg-dark .section-badge {
            background: rgba(13, 82, 214, 0.25);
            color: #6AA1FF;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-dark);
            margin-bottom: 14px;
        }
        .bg-dark .section-title {
            color: #FFFFFF;
        }
        .section-intro {
            font-size: 16px;
            color: var(--text-medium);
            line-height: 1.7;
        }
        .bg-dark .section-intro {
            color: #A4B3CB;
        }

        /* Hero 区域 */
        .hero-section {
            padding-top: 170px;
            padding-bottom: 90px;
            position: relative;
            background: linear-gradient(180deg, #F0F4FC 0%, #F7F9FC 100%);
            overflow: hidden;
        }
        .hero-banner-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-subtle);
            border: 1px solid var(--border-light);
        }
        .hero-banner-img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            filter: brightness(0.92);
        }
        .hero-banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 19, 43, 0.92) 0%, rgba(13, 82, 214, 0.72) 65%, rgba(13, 82, 214, 0.3) 100%);
            display: flex;
            align-items: center;
            padding: 48px;
            color: #fff;
        }
        .hero-content {
            max-width: 660px;
        }
        .hero-chip {
            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: 13px;
            color: #E2ECFF;
            margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .hero-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.75;
            color: #D2E0FB;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 30px;
        }
        .btn-primary-lg {
            background: #00B42A;
            color: #fff !important;
            padding: 13px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 16px rgba(0, 180, 42, 0.35);
        }
        .btn-primary-lg:hover {
            background: #009924;
            transform: translateY(-2px);
        }
        .btn-outline-lg {
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff !important;
            padding: 13px 26px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-lg:hover {
            background: rgba(255, 255, 255, 0.25);
        }
        .hero-stats-row {
            display: flex;
            gap: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.18);
            padding-top: 20px;
        }
        .hero-stat-item {
            font-size: 13px;
            color: #C0D3F8;
        }
        .hero-stat-item strong {
            display: block;
            font-size: 20px;
            color: #fff;
            font-weight: 700;
        }

        /* 硬件品牌与协议标章 */
        .hero-brand-strip {
            margin-top: 35px;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px 30px;
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            box-shadow: var(--shadow-subtle);
        }
        .brand-strip-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-medium);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-strip-tags {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .protocol-tag {
            background: #F2F5FA;
            border: 1px solid var(--border-light);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            font-weight: 600;
            color: var(--text-medium);
        }

        /* 卡片基础设计 */
        .custom-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            padding: 30px;
            height: 100%;
            transition: all 0.3s ease;
        }
        .custom-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(13, 82, 214, 0.25);
        }

        /* 痛点对比区 */
        .pain-card {
            border-left: 4px solid #F53F3F;
            position: relative;
        }
        .pain-badge {
            background: #FFECE8;
            color: #F53F3F;
            font-size: 12px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: var(--radius-sm);
            display: inline-block;
            margin-bottom: 12px;
        }
        .solution-badge {
            background: #E8FFEA;
            color: #00B42A;
            font-size: 12px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: var(--radius-sm);
            display: inline-block;
            margin-top: 14px;
            margin-bottom: 6px;
        }
        .pain-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .pain-text {
            font-size: 14px;
            color: var(--text-medium);
            line-height: 1.6;
        }
        .solution-text {
            font-size: 14px;
            color: #1D2129;
            font-weight: 500;
            line-height: 1.6;
        }

        /* 架构图解卡片 */
        .arch-grid-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 24px;
            position: relative;
            overflow: hidden;
            margin-bottom: 20px;
        }
        .arch-layer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 10px;
        }
        .arch-layer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .arch-layer-spec {
            font-size: 12px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .arch-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .arch-pill-item {
            background: #F7F9FC;
            border: 1px solid #E5E6EB;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--text-dark);
            font-weight: 500;
        }

        /* 核心优势矩阵 */
        .feature-icon-box {
            width: 54px;
            height: 54px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary-light) 0%, #D8E5FF 100%);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }
        .feature-card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .feature-card-desc {
            font-size: 14px;
            color: var(--text-medium);
            line-height: 1.65;
        }

        /* 硬件产品卡片 */
        .hardware-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: all 0.3s ease;
        }
        .hardware-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .hardware-img-wrap {
            height: 220px;
            overflow: hidden;
            background: #EDF2F9;
            position: relative;
        }
        .hardware-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .hardware-card:hover .hardware-img {
            transform: scale(1.05);
        }
        .hardware-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(13, 82, 214, 0.9);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 4px;
        }
        .hardware-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .hardware-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .hardware-desc {
            font-size: 14px;
            color: var(--text-medium);
            margin-bottom: 16px;
            flex: 1;
        }
        .hardware-specs {
            background: #F7F9FC;
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 12px;
            color: var(--text-medium);
            margin-bottom: 16px;
        }
        .hardware-specs li {
            list-style: none;
            display: flex;
            justify-content: space-between;
            margin-bottom: 4px;
        }
        .hardware-specs li:last-child {
            margin-bottom: 0;
        }

        /* 交付部署步骤 */
        .step-timeline-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-light);
            position: relative;
            height: 100%;
        }
        .step-num-badge {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.25;
            line-height: 1;
            margin-bottom: 10px;
        }
        .step-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .step-duration {
            display: inline-block;
            font-size: 11px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .step-desc {
            font-size: 13px;
            color: var(--text-medium);
            line-height: 1.6;
        }

        /* 深色数字孪生案例区 */
        .twin-banner-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: var(--bg-dark-card);
        }
        .twin-banner-img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            filter: brightness(0.65);
        }
        .twin-overlay{
            position: absolute;
            inset: 0;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            background: linear-gradient(0deg, rgba(11, 19, 43, 0.95) 0%, rgba(11, 19, 43, 0.4) 60%, transparent 100%);
        }
        .twin-tech-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: rgba(15, 198, 194, 0.18);
            border: 1px solid rgba(15, 198, 194, 0.4);
            border-radius: var(--radius-pill);
            color: var(--accent-cyan);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
            width: fit-content;
        }

        /* 客户故事交替排版 */
        .story-block {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            margin-bottom: 36px;
            box-shadow: var(--shadow-subtle);
        }
        .story-img-container {
            height: 100%;
            min-height: 280px;
            position: relative;
        }
        .story-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .story-body {
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .story-meta-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }
        .story-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .story-text {
            font-size: 15px;
            color: var(--text-medium);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .story-data-badges {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .story-stat-node strong {
            font-size: 22px;
            color: var(--primary);
            display: block;
        }
        .story-stat-node span {
            font-size: 12px;
            color: var(--text-light);
        }

        /* 关键指标统计条 */
        .metric-strip-wrapper {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 40px 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
        }
        .metric-item {
            text-align: center;
            position: relative;
        }
        .metric-item:not(:last-child)::after {
            content: "";
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background-color: var(--border-light);
        }
        .metric-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
            font-feature-settings: "tnum";
        }
        .metric-label {
            font-size: 14px;
            color: var(--text-medium);
            font-weight: 500;
        }

        /* 场景卡片矩阵 */
        .scene-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 26px;
            height: 100%;
            transition: all 0.3s ease;
        }
        .scene-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .scene-icon {
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .scene-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
        }
        .scene-desc {
            font-size: 14px;
            color: var(--text-medium);
            line-height: 1.6;
        }

        /* 客户评价证言 */
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 30px;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            box-shadow: var(--shadow-subtle);
        }
        .testimonial-quote {
            font-size: 14px;
            color: var(--text-medium);
            line-height: 1.7;
            margin-bottom: 20px;
            position: relative;
        }
        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-light);
            padding-top: 16px;
        }
        .user-avatar-circle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
        }
        .user-info-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
        }
        .user-info-role {
            font-size: 12px;
            color: var(--text-light);
        }
        .star-rating {
            color: #FFB800;
            font-size: 12px;
            margin-bottom: 8px;
        }

        /* 动态资讯三栏 */
        .news-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-subtle);
            transition: all 0.3s ease;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .news-cover-wrap {
            height: 180px;
            overflow: hidden;
        }
        .news-cover-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-cover-img {
            transform: scale(1.05);
        }
        .news-content {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-date {
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .news-summary {
            font-size: 13px;
            color: var(--text-medium);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        .news-link-btn {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* FAQ 手风琴重构 */
        .accordion {
            background: transparent;
            border: none;
            margin: 0;
        }
        .accordion-item {
            background: #fff;
            border: 1px solid var(--border-light) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
        }
        .accordion-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            padding: 20px 24px;
            border: none;
            position: relative;
        }
        .accordion-title:hover, .accordion-title:focus {
            background: #FAFCFF;
            color: var(--primary);
        }
        .accordion-content {
            padding: 0 24px 22px;
            border: none;
            color: var(--text-medium);
            font-size: 14px;
            line-height: 1.7;
        }

        /* 预约转化 CTA 表单卡 */
        .cta-box-card {
            background: linear-gradient(135deg, #0B132B 0%, #162447 100%);
            border-radius: var(--radius-lg);
            padding: 55px 45px;
            color: #fff;
            position: relative;
            box-shadow: 0 16px 40px rgba(11, 19, 43, 0.25);
        }
        .cta-title {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-subtitle {
            font-size: 15px;
            color: #BAC7DE;
            margin-bottom: 28px;
            line-height: 1.6;
        }
        .cta-form-input {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: var(--radius-sm);
            color: #fff;
            padding: 12px 16px;
            font-size: 14px;
            width: 100%;
            margin-bottom: 16px;
        }
        .cta-form-input:focus {
            background: rgba(255, 255, 255, 0.14);
            border-color: #3880FF;
            outline: none;
            box-shadow: 0 0 0 3px rgba(56, 128, 255, 0.25);
        }
        .cta-form-select {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: var(--radius-sm);
            color: #fff;
            padding: 12px 16px;
            font-size: 14px;
            width: 100%;
            margin-bottom: 16px;
        }
        .cta-form-select option {
            background: #162447;
            color: #fff;
        }
        .cta-submit-btn {
            background: #00B42A;
            border: none;
            border-radius: var(--radius-pill);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            padding: 14px 28px;
            cursor: pointer;
            width: 100%;
            box-shadow: 0 4px 16px rgba(0, 180, 42, 0.35);
            transition: all 0.25s ease;
        }
        .cta-submit-btn:hover {
            background: #009A24;
            transform: translateY(-2px);
        }
        .trust-micro-badges {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 18px;
            font-size: 12px;
            color: #8CA0BA;
        }

        /* 页脚规范与权威凭证 */
        .site-footer {
            background: #0B111E;
            color: #8C9BB0;
            padding: 70px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
        }
        .footer-brand-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-desc {
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links-list li {
            margin-bottom: 10px;
        }
        .footer-links-list a {
            color: #8C9BB0;
        }
        .footer-links-list a:hover {
            color: #fff;
        }
        .footer-trust-box {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            padding: 16px;
            margin-top: 30px;
            text-align: center;
            font-size: 12px;
            line-height: 1.8;
        }
        .footer-bottom-bar {
            margin-top: 35px;
            padding-top: 25px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* 响应式断点控制 */
        @media screen and (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-banner-img {
                height: 520px;
            }
            .hero-banner-overlay {
                padding: 30px;
            }
        }
        @media screen and (max-width: 640px) {
            .section-block {
                padding: 60px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .hero-title {
                font-size: 24px;
            }
            .hero-banner-img {
                height: 600px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: 12px;
            }
            .metric-item:not(:last-child)::after {
                display: none;
            }
            .metric-item {
                margin-bottom: 24px;
            }
            .cta-box-card {
                padding: 30px 20px;
            }
        }