/* roulang page: index */
:root {
            --bg-primary: #090A0F;
            --bg-secondary: #12141C;
            --bg-tertiary: #1A1D28;
            --bg-card: rgba(26, 29, 40, 0.75);
            --primary: #00F2FE;
            --primary-glow: rgba(0, 242, 254, 0.35);
            --accent: #4FACFE;
            --accent-purple: #7F00FF;
            --text-main: #FFFFFF;
            --text-body: #E2E8F0;
            --text-muted: #94A3B8;
            --border-line: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 242, 254, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --container-max: 1280px;
            --transition-fast: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
            --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.6;
            overflow-x: hidden;
        }

        body {
            position: relative;
            background-color: var(--bg-primary);
            background-image: 
                radial-gradient(circle at 15% 10%, rgba(0, 242, 254, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 85% 60%, rgba(79, 172, 254, 0.05) 0%, transparent 45%);
            background-attachment: fixed;
            overflow-x: hidden;
        }

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

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

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

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 顶部双行导航系统 */
        .top-status-bar {
            height: 38px;
            background-color: rgba(9, 10, 15, 0.95);
            border-bottom: 1px solid var(--border-line);
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
        }

        .status-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .status-pulse {
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            box-shadow: 0 0 10px #10B981;
            animation: pulse-ring 2s infinite;
        }

        @keyframes pulse-ring {
            0% { transform: scale(0.95); opacity: 0.8; }
            50% { transform: scale(1.2); opacity: 1; }
            100% { transform: scale(0.95); opacity: 0.8; }
        }

        .status-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }

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

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(18, 20, 28, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-line);
            transition: var(--transition-fast);
        }

        .nav-wrapper {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }

        .logo-symbol {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px var(--primary-glow);
        }

        .logo-symbol svg {
            width: 20px;
            height: 20px;
            fill: #090A0F;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-item a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 8px 0;
        }

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

        .nav-item a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition-fast);
        }

        .nav-item a:hover::after {
            width: 100%;
        }

        .nav-cta-group {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

        .btn-subtle {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            border: 1px solid var(--border-line);
        }

        .btn-subtle:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            color: var(--primary);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: #090A0F;
            box-shadow: 0 4px 18px rgba(0, 242, 254, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(0, 242, 254, 0.45);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-main);
            cursor: pointer;
            padding: 8px;
        }

        .mobile-toggle svg {
            width: 26px;
            height: 26px;
            stroke: currentColor;
        }

        /* 移动端抽屉菜单 */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 110px;
            left: 0;
            width: 100%;
            height: calc(100vh - 110px);
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-line);
            padding: 30px 24px;
            flex-direction: column;
            gap: 20px;
            z-index: 999;
            overflow-y: auto;
        }

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

        .mobile-nav-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .mobile-nav-list a {
            font-size: 18px;
            color: var(--text-main);
            font-weight: 500;
            display: block;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-line);
        }

        /* 通用区块排版 */
        section {
            padding: 96px 0;
            position: relative;
        }

        .section-dark {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-line);
            border-bottom: 1px solid var(--border-line);
        }

        .section-deeper {
            background-color: #07080B;
        }

        .section-header {
            max-width: 820px;
            margin: 0 auto 56px auto;
            text-align: center;
        }

        .section-header.text-left {
            text-align: left;
            margin-left: 0;
        }

        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--primary);
            background: rgba(0, 242, 254, 0.08);
            border: 1px solid rgba(0, 242, 254, 0.2);
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 统一卡片样式 */
        .glass-card {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-md);
            padding: 32px;
            transition: var(--transition-smooth);
            position: relative;
            backdrop-filter: blur(8px);
        }

        .glass-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: 0 16px 36px -10px rgba(0, 242, 254, 0.12);
        }

        /* 板块一：首屏 Hero Banner - 提问式获客与极速试听入口 */
        .hero-section {
            padding: 80px 0 100px 0;
            background: linear-gradient(180deg, rgba(18, 20, 28, 0.4) 0%, rgba(9, 10, 15, 1) 100%),
                        url('/assets/images/45dfc5202e079906.webp') no-repeat center top / cover;
            position: relative;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 50% 30%, rgba(9, 10, 15, 0.6) 0%, rgba(9, 10, 15, 0.95) 85%);
        }

        .hero-container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 22px;
            letter-spacing: -0.8px;
        }

        .hero-content h1 span {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-lead-text {
            font-size: 17px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 36px;
        }

        .hero-feature-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-line);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 13px;
            color: var(--text-body);
        }

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

        .hero-interactive-card {
            background: rgba(18, 20, 28, 0.85);
            border: 1px solid rgba(0, 242, 254, 0.3);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.7), 0 0 30px rgba(0, 242, 254, 0.15);
        }

        .lead-form-header {
            margin-bottom: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .lead-form-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);}

        .lead-latency-tag {
            font-size: 12px;
            color: var(--primary);
            background: rgba(0, 242, 254, 0.1);
            padding: 4px 10px;
            border-radius: 4px;
            border: 1px solid rgba(0, 242, 254, 0.2);
        }

        .hero-waveform {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
            height: 48px;
            margin-bottom: 24px;
            background: rgba(9, 10, 15, 0.6);
            border-radius: var(--radius-sm);
            padding: 0 16px;
        }

        .wave-bar {
            width: 3px;
            background: var(--primary);
            border-radius: 3px;
            animation: wave-anim 1.2s ease-in-out infinite alternate;
        }

        .wave-bar:nth-child(2) { animation-delay: 0.1s; height: 18px; }
        .wave-bar:nth-child(3) { animation-delay: 0.2s; height: 28px; }
        .wave-bar:nth-child(4) { animation-delay: 0.3s; height: 40px; }
        .wave-bar:nth-child(5) { animation-delay: 0.4s; height: 24px; }
        .wave-bar:nth-child(6) { animation-delay: 0.15s; height: 32px; }
        .wave-bar:nth-child(7) { animation-delay: 0.35s; height: 16px; }
        .wave-bar:nth-child(8) { animation-delay: 0.25s; height: 36px; }

        @keyframes wave-anim {
            0% { transform: scaleY(0.3); opacity: 0.5; }
            100% { transform: scaleY(1); opacity: 1; }
        }

        .hero-form-group {
            margin-bottom: 16px;
        }

        .hero-form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .hero-select, .hero-input, .hero-textarea {
            width: 100%;
            background: rgba(9, 10, 15, 0.8);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-sm);
            color: var(--text-main);
            padding: 12px 14px;
            font-size: 14px;
            transition: var(--transition-fast);
        }

        .hero-select:focus, .hero-input:focus, .hero-textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(0, 242, 254, 0.2);
        }

        .hero-btn-block {
            width: 100%;
            padding: 14px;
            font-size: 15px;
            margin-top: 8px;
        }

        /* 网格系统与工具样式 */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

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

        /* 板块二：声学引擎架构 */
        .engine-preview-box {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-line);
        }

        .engine-preview-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
        }

        .engine-spec-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 24px;
        }

        .engine-spec-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .spec-icon-check {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(0, 242, 254, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* 板块三：核心优势矩阵 */
        .feature-icon-container {
            width: 52px;
            height: 52px;
            background: rgba(0, 242, 254, 0.08);
            border: 1px solid rgba(0, 242, 254, 0.2);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 20px;
        }

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

        .feature-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .feature-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 板块四：热门模型应用区 */
        .model-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            display: flex;
            flex-direction: column;
            transition: var(--transition-smooth);
        }

        .model-card:hover {
            border-color: var(--primary);
            transform: translateY(-6px);
            box-shadow: 0 20px 40px -15px rgba(0, 242, 254, 0.18);
        }

        .model-card-img-wrap {
            height: 210px;
            width: 100%;
            position: relative;
            overflow: hidden;
        }

        .model-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .model-card-content {
            padding: 26px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .model-tag {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .model-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .model-card-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .model-card-footer {
            border-top: 1px solid var(--border-line);
            padding-top: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 板块五：声学实验室规范 */
        .lab-highlight-banner {
            border: 1px solid rgba(0, 242, 254, 0.25);
            background: linear-gradient(135deg, rgba(18, 20, 28, 0.95) 0%, rgba(9, 10, 15, 0.95) 100%),
                        url('/assets/images/1ae35e88a727399c.webp') center/cover;
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            position: relative;
            overflow: hidden;
        }

        .lab-badge {
            display: inline-block;
            background: rgba(0, 242, 254, 0.15);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        /* 板块六：流程步骤条 */
        .step-timeline-wrapper {
            position: relative;
            margin-top: 40px;
        }

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
        }

        .step-num-badge {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #090A0F;
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .step-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .step-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块七：行业客户故事 */
        .story-item {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            padding: 36px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .story-item-media {
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 280px;
        }

        .story-item-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .story-metric-pill {
            display: inline-flex;
            gap: 6px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* 板块八：数据指标条 */
        .metric-counter-section {
            background: linear-gradient(90deg, #090A0F 0%, #161A26 50%, #090A0F 100%);
            border-top: 1px solid var(--border-line);
            border-bottom: 1px solid var(--border-line);
            padding: 60px 0;
        }

        .metric-item {
            text-align: center;
            padding: 0 16px;
        }

        .metric-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -1px;
            margin-bottom: 6px;
            background: linear-gradient(135deg, #FFFFFF 30%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 板块九：评测卡片墙 */
        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-md);
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-stars {
            color: #F59E0B;
            font-size: 14px;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }

        .review-quote {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .reviewer-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-line);
            padding-top: 14px;
        }

        .reviewer-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #2D3748, #4A5568);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--text-main);
            font-size: 14px;
        }

        .reviewer-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }

        .reviewer-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 板块十：前沿动态 */
        .article-summary-card {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .article-thumb {
            height: 180px;
            width: 100%;
            overflow: hidden;
        }

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

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

        .article-time {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .article-heading {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .article-snippet {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        /* 板块十一：生态兼容 */
        .eco-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .eco-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-sm);
            padding: 20px;
            text-align: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--transition-fast);
        }

        .eco-item:hover {
            border-color: rgba(255, 255, 255, 0.2);
            color: var(--primary);
            background: rgba(255, 255, 255, 0.04);
        }

        /* 板块十二：FAQ 手风琴 */
        .faq-accordion-wrap {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-fast);
        }

        .faq-header {
            padding: 22px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-icon-arrow {
            width: 18px;
            height: 18px;
            fill: var(--text-muted);
            transition: transform 0.3s ease;
        }

        .faq-accordion-item.active {
            border-color: rgba(0, 242, 254, 0.3);
        }

        .faq-accordion-item.active .faq-icon-arrow {
            transform: rotate(180deg);
            fill: var(--primary);
        }

        .faq-content {
            padding: 0 26px 22px 26px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }

        .faq-accordion-item.active .faq-content {
            display: block;
        }

        /* 板块十三：合规安全条 */
        .security-badge-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .security-badge-card {
            background: rgba(18, 20, 28, 0.6);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-md);
            padding: 22px;
            text-align: center;
        }

        .security-badge-card svg {
            width: 32px;
            height: 32px;
            fill: var(--primary);
            margin: 0 auto 12px auto;
        }

        .sec-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .sec-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 底部转换区 */
        .final-cta-section {
            background: radial-gradient(circle at 50% 50%, rgba(0, 242, 254, 0.08) 0%, rgba(9, 10, 15, 1) 75%);
            padding: 100px 0;
            border-top: 1px solid var(--border-line);
        }

        .final-cta-box {
            background: linear-gradient(180deg, rgba(26, 29, 40, 0.8) 0%, rgba(18, 20, 28, 0.95) 100%);
            border: 1px solid rgba(0, 242, 254, 0.3);
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            max-width: 960px;
            margin: 0 auto;
            text-align: center;
            box-shadow: 0 25px 60px -20px rgba(0, 242, 254, 0.15);
        }

        .final-cta-box h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .final-cta-box p {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 32px;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-inline-form {
            display: flex;
            gap: 12px;
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-inline-input {
            flex-grow: 1;
            background: rgba(9, 10, 15, 0.9);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-sm);
            color: var(--text-main);
            padding: 14px 18px;
            font-size: 15px;
        }

        .cta-inline-input:focus {
            border-color: var(--primary);
        }

        /* 全局页脚 */
        .site-footer {
            background-color: #07080B;
            border-top: 1px solid var(--border-line);
            padding: 72px 0 36px 0;
            color: var(--text-muted);
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 56px;
        }

        .footer-brand-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 18px;
        }

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

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

        .footer-contact-info {
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 13px;
        }

        .footer-bottom-bar {
            border-top: 1px solid var(--border-line);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 12px;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .story-item {
                grid-template-columns: 1fr;
            }
            .story-item-media {
                height: 220px;
            }
        }

        @media (max-width: 768px) {
            .top-status-bar {
                display: none;
            }
            .nav-menu, .nav-cta-group {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .grid-2, .grid-3 {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .section-title {
                font-size: 28px;
            }
            .metric-counter-section .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .security-badge-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-inline-form {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom-bar {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .metric-counter-section .grid-4 {
                grid-template-columns: 1fr;
            }
            .security-badge-grid {
                grid-template-columns: 1fr;
            }
            .eco-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }