/* roulang page: index */
:root {
            --bg-page: #F8F9FA;
            --bg-card: #FFFFFF;
            --bg-dark: #0B0F17;
            --bg-dark-card: #151D2A;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-light: #F1F5F9;
            --color-primary: #0F172A;
            --color-accent: #D97706;
            --color-accent-hover: #B45309;
            --color-accent-subtle: #FEF3C7;
            --color-border: #E2E8F0;
            --color-border-dark: #1E293B;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部双行导航系统 */
        .top-trust-bar {
            background-color: #0F172A;
            color: #94A3B8;
            font-size: 0.8125rem;
            border-bottom: 1px solid #1E293B;
            padding: 8px 0;
        }

        .top-trust-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
        }

        .main-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
        }

        .logo-symbol {
            width: 34px;
            height: 34px;
            background: var(--text-main);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 900;
            border: 1px solid #334155;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 32px;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9375rem;
            font-weight: 600;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--text-main);
            color: #FFFFFF;
            border-color: var(--text-main);
        }

        .btn-primary:hover {
            background-color: #1E293B;
            border-color: #1E293B;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-accent {
            background-color: var(--color-accent);
            color: #FFFFFF;
            border-color: var(--color-accent);
        }

        .btn-accent:hover {
            background-color: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--text-main);
            border-color: var(--color-border);
        }

        .btn-outline:hover {
            border-color: var(--text-main);
            background-color: #F1F5F9;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            font-size: 1.5rem;
            color: var(--text-main);
        }

        /* 统一标题与排版系统 */
        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 56px auto;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            background: var(--color-accent-subtle);
            padding: 4px 12px;
            border-radius: 9999px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        section {
            padding: 96px 0;
            position: relative;
        }

        .section-alt {
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        /* 板块 1：Hero 首屏 */
        .hero-section {
            padding: 80px 0 100px 0;
            background: linear-gradient(180deg, #FFFFFF 0%, #F8F9FA 100%);
            border-bottom: 1px solid var(--color-border);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            max-width: 640px;
        }

        .hero-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: 9999px;
            font-size: 0.875rem;
            color: var(--text-body);
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }

        .hero-pill .dot {
            width: 6px;
            height: 6px;
            background: var(--color-accent);
            border-radius: 50%;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-main);
            letter-spacing: -0.03em;
            margin-bottom: 24px;
        }

        .hero-desc {
            font-size: 1.125rem;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .hero-proof-line {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .hero-visual-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .visual-preview-img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 340px;
            object-fit: cover;
            border: 1px solid var(--color-border);
            margin-bottom: 16px;
        }

        .visual-console-sim {
            background: #F8F9FA;
            border-radius: var(--radius-sm);
            padding: 14px;
            border: 1px solid var(--color-border);
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            font-size: 0.825rem;
            color: #334155;
            line-height: 1.6;
        }

        /* 板块 2：架构三连 */
        .arch-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .arch-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 36px 30px;
            transition: var(--transition);
            position: relative;
        }

        .arch-card:hover {
            transform: translateY(-4px);
            border-color: var(--text-main);
            box-shadow: var(--shadow-lg);
        }

        .arch-num {
            font-family: ui-monospace, monospace;
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 16px;
            display: block;
        }

        .arch-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .arch-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .arch-meta {
            padding-top: 16px;
            border-top: 1px dashed var(--color-border);
            font-size: 0.8125rem;
            color: var(--text-main);
            font-weight: 600;
        }

        /* 板块 3：品牌故事与体系 */
        .about-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-img-box {
            position: relative;
        }

        .about-img {
            border-radius: var(--radius-lg);
            width: 100%;
            height: 440px;
            object-fit: cover;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-lg);
        }

        .about-badge-floating {
            position: absolute;
            bottom: -20px;
            right: -20px;
            background: #0F172A;
            color: #FFFFFF;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid #1E293B;
            max-width: 240px;
        }

        .about-badge-floating .val {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--color-accent);
            display: block;
            line-height: 1.1;
        }

        .about-badge-floating .lbl {
            font-size: 0.8125rem;
            color: #94A3B8;
            margin-top: 4px;
        }

        .about-content h3 {
            font-size: 1.85rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .about-content p {
            font-size: 1rem;
            color: var(--text-body);
            margin-bottom: 20px;
            line-height: 1.8;
        }

        .trust-metrics-strip {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 28px;
        }

        .trust-metric-item {
            background: #F8F9FA;
            padding: 16px;
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--color-accent);
        }

        .trust-metric-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .trust-metric-item p {
            font-size: 0.825rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.5;
        }

        /* 板块 4：功能矩阵网格 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-box {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 32px 26px;
            transition: var(--transition);
        }

        .feature-box:hover {
            transform: translateY(-4px);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-md);
        }

        .feature-icon-wrapper {
            width: 44px;
            height: 44px;
            background: #F8F9FA;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 20px;
            color: var(--color-accent);
            font-weight: bold;
        }

        .feature-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .feature-desc {
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 板块 5：场景演示大卡 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .solution-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .solution-img-holder {
            height: 200px;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
        }

        .solution-img-holder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .solution-card:hover .solution-img-holder img {
            transform: scale(1.05);
        }

        .solution-body {
            padding: 28px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .solution-tag {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .solution-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .solution-pain {
            font-size: 0.875rem;
            color: #EF4444;
            background: #FEF2F2;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
        }

        .solution-desc {
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .solution-stat {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 16px;
            border-top: 1px solid var(--color-border);
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-main);
        }

        .solution-stat span {
            color: var(--color-accent);
            font-size: 1.15rem;
            font-weight: 800;
        }

        /* 板块 6：深色算力与哲学 */
        .tech-dark-section {
            background-color: var(--bg-dark);
            color: var(--text-light);
            border-top: 1px solid var(--color-border-dark);
            border-bottom: 1px solid var(--color-border-dark);
        }

        .tech-dark-section .section-title {
            color: #FFFFFF;
        }

        .tech-dark-section .section-desc {
            color: #94A3B8;
        }

        .tech-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .tech-manifesto h3 {
            font-size: 1.75rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 20px;
            line-height: 1.35;
        }

        .tech-manifesto p {
            font-size: 1rem;
            color: #94A3B8;
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .terminal-window {
            background: #030712;
            border: 1px solid #1E293B;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
        }

        .terminal-header {
            background: #111827;
            padding: 10px 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid #1F2937;
        }

        .term-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            display: inline-block;
        }

        .term-dot-red { background: #EF4444; }
        .term-dot-yellow { background: #F59E0B; }
        .term-dot-green { background: #10B981; }

        .terminal-title {
            font-size: 0.75rem;
            color: #64748B;
            margin-left: 8px;
        }

        .terminal-body {
            padding: 20px;
            font-size: 0.85rem;
            line-height: 1.7;
            color: #E2E8F0;
        }

        .terminal-body .code-comment { color: #64748B; }
        .terminal-body .code-kw { color: #F43F5E; }
        .terminal-body .code-str { color: #34D399; }
        .terminal-body .code-accent { color: var(--color-accent); }

        /* 板块 7：行业案例 */
        .case-cards-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }

        .case-unit {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }

        .case-img-top {
            height: 220px;
            width: 100%;
            object-fit: cover;
            border-bottom: 1px solid var(--color-border);
        }

        .case-unit-body {
            padding: 32px;
        }

        .case-unit-tag {
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 12px;
            display: inline-block;
        }

        .case-unit-title {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .case-unit-text {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .case-comparison-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            background: #F8F9FA;
            padding: 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
        }

        .case-comparison-row .comp-item span {
            display: block;
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .case-comparison-row .comp-item strong {
            font-size: 1rem;
            color: var(--text-main);
        }

        /* 板块 8：关键效能数据 */
        .metrics-section {
            padding: 60px 0;
            background: #FFFFFF;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .metric-unit {
            padding: 16px;
        }

        .metric-value {
            font-size: 3rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.1;
            margin-bottom: 8px;
            font-family: ui-sans-serif, system-ui, sans-serif;
            letter-spacing: -0.03em;
        }

        .metric-label {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .metric-sub {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* 板块 9：用户真实评价 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testi-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .testi-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent);
        }

        .testi-stars {
            color: #F59E0B;
            font-size: 1.1rem;
            margin-bottom: 16px;
        }

        .testi-text {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 24px;
            font-style: italic;
        }

        .testi-author {
            display: flex;
            align-items: center;
            gap: 14px;
            padding-top: 16px;
            border-top: 1px solid var(--color-border);
        }

        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #0F172A;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
        }

        .author-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .author-info p {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* 板块 10：资讯与行业前沿 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-4px);
            border-color: var(--text-main);
            box-shadow: var(--shadow-md);
        }

        .news-header-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
            font-size: 0.8125rem;
        }

        .news-category {
            color: var(--color-accent);
            font-weight: 700;
            background: var(--color-accent-subtle);
            padding: 2px 8px;
            border-radius: var(--radius-sm);
        }

        .news-date {
            color: var(--text-muted);
        }

        .news-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .news-summary {
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .news-link-btn {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--text-main);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .news-link-btn:hover {
            color: var(--color-accent);
        }

        /* 板块 11：FAQ 折叠区 */
        .faq-wrapper {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 22px 28px;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-icon {
            font-size: 1.25rem;
            color: var(--color-accent);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            background-color: #FAFAFA;
        }

        .faq-answer-inner {
            padding: 0 28px 24px 28px;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.8;
            border-top: 1px solid #F1F5F9;
        }

        /* 板块 12：安全与服务保障 */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .guarantee-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
        }

        .guarantee-badge {
            width: 50px;
            height: 50px;
            margin: 0 auto 16px auto;
            border-radius: 50%;
            background: var(--color-accent-subtle);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 800;
        }

        .guarantee-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .guarantee-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 转化收口区与全局页脚 */
        .cta-bottom-block {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            text-align: center;
            color: #FFFFFF;
            margin-bottom: -60px;
            position: relative;
            z-index: 10;
            box-shadow: var(--shadow-lg);
            border: 1px solid #334155;
        }

        .cta-bottom-block h2 {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-bottom-block p {
            font-size: 1.05rem;
            color: #94A3B8;
            max-width: 600px;
            margin: 0 auto 32px auto;
        }

        .cta-form-inline {
            display: flex;
            max-width: 500px;
            margin: 0 auto;
            gap: 12px;
        }

        .cta-input {
            flex-grow: 1;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid #334155;
            background: #0B0F17;
            color: #FFFFFF;
            font-size: 0.95rem;
            outline: none;
        }

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

        .global-footer {
            background-color: var(--bg-dark);
            color: #94A3B8;
            padding-top: 120px;
            padding-bottom: 40px;
            border-top: 1px solid #1E293B;
            font-size: 0.875rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 60px;
        }

        .footer-brand .brand-logo {
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-brand p {
            line-height: 1.7;
            margin-bottom: 20px;
            color: #64748B;
        }

        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
        }

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

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

        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid #1E293B;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            color: #64748B;
            font-size: 0.8125rem;
        }

        /* 吸底固定转化栏 */
        .bottom-sticky-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: rgba(15, 23, 42, 0.96);
            backdrop-filter: blur(10px);
            border-top: 1px solid #1E293B;
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.15);
        }

        .sticky-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .sticky-left-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #FFFFFF;
        }

        .sticky-left-sub {
            font-size: 0.8125rem;
            color: #94A3B8;
        }

        /* 响应式样式适配 */
        @media (max-width: 1024px) {
            .hero-grid, .about-split, .tech-split, .case-cards-wrapper {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .arch-grid, .features-grid, .solutions-grid, .testimonials-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid, .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .top-trust-bar {
                display: none;
            }
            .nav-links, .nav-actions {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .mobile-menu-drawer {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                border-bottom: 1px solid var(--color-border);
                padding: 24px;
                display: none;
                flex-direction: column;
                gap: 16px;
                box-shadow: var(--shadow-lg);
            }
            .mobile-menu-drawer.show {
                display: flex;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.85rem;
            }
            .arch-grid, .features-grid, .solutions-grid, .testimonials-grid, .news-grid, .guarantee-grid, .metrics-grid {
                grid-template-columns: 1fr;
            }
            .cta-form-inline {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .sticky-left-sub {
                display: none;
            }
            .about-badge-floating {
                position: static;
                margin-top: 16px;
                max-width: 100%;
            }
        }