/* roulang page: index */
:root {
            --color-bg-dark: #0B0E14;
            --color-bg-slate: #0F172A;
            --color-bg-light: #F8FAFC;
            --color-card-light: #FFFFFF;
            --color-primary: #00C389;
            --color-primary-dark: #009968;
            --color-primary-light: #E6FBF4;
            --color-accent: #F59E0B;
            --color-accent-blue: #38BDF8;
            --color-text-main: #0F172A;
            --color-text-muted: #64748B;
            --color-text-dark-sub: #94A3B8;
            --color-text-dark-main: #F8FAFC;
            --color-border-light: #E2E8F0;
            --color-border-dark: rgba(255, 255, 255, 0.1);
            --shadow-subtle: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
            --shadow-hover: 0 14px 30px -4px rgba(0, 195, 137, 0.18);
            --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.06);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-pill: 9999px;
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-light);
            color: var(--color-text-main);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }

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

        button, input, select, textarea {
            font: inherit;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Utility Top Bar */
        .utility-bar {
            background-color: var(--color-bg-dark);
            color: var(--color-text-dark-sub);
            font-size: 0.8125rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 0.5rem 0;
        }
        .utility-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .utility-left {
            display: flex;
            align-items: center;
            gap: 1.25rem;
        }
        .utility-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            color: var(--color-primary);
        }
        .utility-right {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        /* Sticky Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-light);
            transition: all 0.3s ease;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 4.75rem;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-text-main);
            letter-spacing: -0.02em;
        }
        .logo-symbol {
            width: 2.5rem;
            height: 2.5rem;
            background: linear-gradient(135deg, var(--color-primary), #059669);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
            box-shadow: 0 4px 12px rgba(0, 195, 137, 0.35);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-link {
            font-weight: 500;
            font-size: 0.9375rem;
            color: #334155;
            padding: 0.5rem 0.25rem;
            position: relative;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--color-primary-dark);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--color-primary);
            transition: width 0.25s ease;
        }
        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }
        .nav-action {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--color-text-main);
            padding: 0.5rem;
        }

        /* Buttons & Badges */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 1.625rem;
            font-size: 0.9375rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all 0.25s ease;
            gap: 0.5rem;
            line-height: 1.2;
            border: 1px solid transparent;
            min-height: 44px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(0, 195, 137, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(0, 195, 137, 0.4);
            color: #FFFFFF;
        }
        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--color-text-main);
            border-color: var(--color-border-light);
        }
        .btn-secondary:hover {
            border-color: var(--color-primary);
            color: var(--color-primary-dark);
            background-color: var(--color-primary-light);
        }
        .btn-ghost-dark {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.15);
            color: #FFFFFF;
        }
        .btn-ghost-dark:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            text-transform: uppercase;
        }
        .badge-primary {
            background-color: var(--color-primary-light);
            color: var(--color-primary-dark);
            border: 1px solid rgba(0, 195, 137, 0.25);
        }
        .badge-dark {
            background-color: rgba(255, 255, 255, 0.1);
            color: #38BDF8;
            border: 1px solid rgba(56, 189, 248, 0.3);
        }
        .badge-amber {
            background-color: #FEF3C7;
            color: #D97706;
            border: 1px solid #FCD34D;
        }

        /* Section Layout Presets */
        .section-py {
            padding-top: 5.5rem;
            padding-bottom: 5.5rem;
        }
        .section-py-sm {
            padding-top: 3.5rem;
            padding-bottom: 3.5rem;
        }
        .section-title-wrap {
            max-width: 800px;
            margin-bottom: 3.5rem;
        }
        .section-title-wrap.text-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-subtitle {
            font-size: 0.875rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-primary-dark);
            margin-bottom: 0.75rem;
            display: block;
        }
        .section-heading {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.28;
            letter-spacing: -0.02em;
            margin-bottom: 1.125rem;
            color: var(--color-text-main);
        }
        .section-desc {
            font-size: 1.0625rem;
            color: var(--color-text-muted);
            line-height: 1.75;
        }

        /* SECTION 1: HERO - 双栏门户 (左主张右快捷入口网格) */
        .hero-section {
            position: relative;
            background: linear-gradient(170deg, #0B0E14 0%, #111827 60%, #0F172A 100%);
            color: #FFFFFF;
            padding: 5rem 0 6rem 0;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/bb5dba5048590dc4.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.16;
            mix-blend-mode: luminosity;
            pointer-events: none;
        }
        .hero-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3.5rem;
            align-items: center;
        }
        .hero-h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.18;
            letter-spacing: -0.03em;
            margin-bottom: 1.25rem;
            color: #FFFFFF;
        }
        .hero-h1 .gradient-text {
            background: linear-gradient(120deg, #00C389 0%, #38BDF8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-p {
            font-size: 1.125rem;
            color: #CBD5E1;
            margin-bottom: 2rem;
            line-height: 1.8;
            max-width: 620px;
        }
        .hero-cta-group {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2.5rem;
        }
        .hero-specs {
            display: flex;
            align-items: center;
            gap: 2rem;
            padding-top: 1.75rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-spec-item h4 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.1;
        }
        .hero-spec-item p {
            font-size: 0.8125rem;
            color: var(--color-text-dark-sub);
            margin-top: 0.25rem;
        }
        
        /* Hero Right: Quick Entrance Grid */
        .quick-portal-box {
            background: rgba(15, 23, 42, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 2rem;
            backdrop-filter: blur(16px);
            box-shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
        }
        .quick-portal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .quick-portal-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: #FFFFFF;
        }
        .portal-grid-items {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }
        .portal-item-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            padding: 1.125rem;
            transition: all 0.25s ease;
            display: block;
        }
        .portal-item-card:hover {
            background: rgba(0, 195, 137, 0.1);
            border-color: rgba(0, 195, 137, 0.4);
            transform: translateY(-3px);
        }
        .portal-card-tag {
            font-size: 0.6875rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.375rem;
            display: block;
        }
        .portal-card-name {
            font-size: 0.9375rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 0.25rem;
        }
        .portal-card-brief {
            font-size: 0.75rem;
            color: var(--color-text-dark-sub);
            line-height: 1.45;
        }

        /* SECTION 2: 分类入口 (Categories) */
        .category-matrix {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .cat-card {
            background: var(--color-card-light);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-subtle);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            position: relative;
            overflow: hidden;
        }
        .cat-card:hover {
            transform: translateY(-5px);
            border-color: var(--color-primary);
            box-shadow: var(--shadow-hover);
        }
        .cat-card-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 1.25rem;
        }
        .cat-icon-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        .cat-title {
            font-size: 1.1875rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 0.625rem;
        }
        .cat-desc {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        .cat-meta-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.375rem;
        }
        .cat-subtag {
            font-size: 0.75rem;
            background: #F1F5F9;
            color: #475569;
            padding: 0.2rem 0.5rem;
            border-radius: var(--radius-sm);
        }

        /* SECTION 3: 精选推荐方案 (Solutions) */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .solution-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }
        .solution-card:hover {
            border-color: var(--color-primary);
            box-shadow: 0 16px 36px -4px rgba(15, 23, 42, 0.1);
            transform: translateY(-4px);
        }
        .solution-cover {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .solution-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .solution-card:hover .solution-cover img {
            transform: scale(1.05);
        }
        .solution-body {
            padding: 1.75rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .solution-type-badge {
            margin-bottom: 0.75rem;
            align-self: flex-start;
        }
        .solution-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 0.75rem;
        }
        .solution-desc {
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            line-height: 1.65;
            margin-bottom: 1.25rem;
            flex-grow: 1;
        }
        .solution-feature-list {
            list-style: none;
            padding-top: 1rem;
            border-top: 1px solid var(--color-border-light);
            margin-bottom: 1.25rem;
        }
        .solution-feature-list li {
            font-size: 0.8125rem;
            color: #475569;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.375rem;
        }
        .solution-feature-list li::before {
            content: '✓';
            color: var(--color-primary);
            font-weight: bold;
        }

        /* SECTION 4: 研发资讯与技术干货 (News) */
        .news-container-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .news-featured-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
        }
        .news-featured-img {
            height: 240px;
            object-fit: cover;
            width: 100%;
        }
        .news-featured-content {
            padding: 2rem;
            flex-grow: 1;
        }
        .news-date {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            margin-bottom: 0.625rem;
            display: block;
        }
        .news-featured-title {
            font-size: 1.375rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 0.875rem;
            line-height: 1.4;
        }
        .news-featured-desc {
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }
        
        .news-list-stack {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }
        .news-list-item {
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            box-shadow: var(--shadow-subtle);
            transition: all 0.25s ease;
            display: block;
        }
        .news-list-item:hover {
            border-color: var(--color-primary);
            transform: translateX(4px);
        }
        .news-item-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.5rem;
        }
        .news-item-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary-dark);
            background: var(--color-primary-light);
            padding: 0.15rem 0.5rem;
            border-radius: var(--radius-sm);
        }
        .news-item-title {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 0.375rem;
            line-height: 1.4;
        }
        .news-item-excerpt {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.55;
        }

        /* SECTION 5: 排行榜 (Ranking) */
        .ranking-table-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .ranking-row {
            display: grid;
            grid-template-columns: 80px 1.8fr 1.2fr 1fr 1fr;
            align-items: center;
            padding: 1.25rem 2rem;
            border-bottom: 1px solid var(--color-border-light);
            transition: background-color 0.2s ease;
        }
        .ranking-row:last-child {
            border-bottom: none;
        }
        .ranking-row.header-row {
            background: #F8FAFC;
            font-size: 0.875rem;
            font-weight: 700;
            color: #475569;
            text-transform: uppercase;
        }
        .ranking-row:not(.header-row):hover {
            background: #F1FDF8;
        }
        .rank-num {
            font-size: 1.375rem;
            font-weight: 900;
            color: #94A3B8;
        }
        .rank-num.top-1 { color: #EAB308; }
        .rank-num.top-2 { color: #94A3B8; }
        .rank-num.top-3 { color: #B45309; }
        .rank-name-box {
            display: flex;
            flex-direction: column;
        }
        .rank-name {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-main);
        }
        .rank-sub {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
        }
        .rank-metric-bar {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .bar-outer {
            flex-grow: 1;
            height: 8px;
            background: #E2E8F0;
            border-radius: 4px;
            overflow: hidden;
        }
        .bar-inner {
            height: 100%;
            background: linear-gradient(90deg, var(--color-primary), #38BDF8);
            border-radius: 4px;
        }

        /* SECTION 6: 案例与证据 (Cases) - 深色区块 */
        .cases-section {
            background: #0B0E14;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }
        .cases-bg-pattern {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/1ed5ddee69e9097d.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cases-container-inner {
            position: relative;
            z-index: 2;
        }
        .case-showcase-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3.5rem;
            align-items: center;
            margin-bottom: 4rem;
            background: rgba(15, 23, 42, 0.65);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            backdrop-filter: blur(12px);
        }
        .case-showcase-box:last-child {
            margin-bottom: 0;
        }
        .case-showcase-box.reverse {
            direction: rtl;
        }
        .case-showcase-box.reverse .case-text-side {
            direction: ltr;
        }
        .case-showcase-box.reverse .case-media-side {
            direction: ltr;
        }
        .case-media-side img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 320px;
            object-fit: cover;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .case-badge-meta {
            margin-bottom: 0.75rem;
        }
        .case-title {
            font-size: 1.75rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .case-desc {
            font-size: 0.9375rem;
            color: #CBD5E1;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .case-stats-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.25rem;
        }
        .case-stat-num {
            font-size: 1.375rem;
            font-weight: 800;
            color: var(--color-primary);
        }
        .case-stat-label {
            font-size: 0.75rem;
            color: var(--color-text-dark-sub);
        }

        /* SECTION 7: 核心研发优势 (Advantages) */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .adv-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 2.25rem 2rem;
            box-shadow: var(--shadow-subtle);
            transition: all 0.3s ease;
            position: relative;
        }
        .adv-card:hover {
            border-color: var(--color-primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .adv-icon {
            width: 3.5rem;
            height: 3.5rem;
            background: var(--color-primary-light);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--color-primary-dark);
            margin-bottom: 1.25rem;
            font-weight: 800;
        }
        .adv-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 0.75rem;
        }
        .adv-desc {
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            line-height: 1.65;
        }

        /* SECTION 8: 性能指标统计 (Metrics) */
        .metrics-banner {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            border-radius: var(--radius-lg);
            padding: 3.5rem 3rem;
            color: #FFFFFF;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }
        .metric-item {
            position: relative;
        }
        .metric-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, 0.1);
        }
        .metric-large {
            font-size: 3rem;
            font-weight: 900;
            color: var(--color-primary);
            line-height: 1.1;
            margin-bottom: 0.5rem;
            font-family: ui-monospace, monospace;
        }
        .metric-name {
            font-size: 1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 0.25rem;
        }
        .metric-note {
            font-size: 0.8125rem;
            color: var(--color-text-dark-sub);
        }

        /* SECTION 9: 交付流程时间线 (Timeline) */
        .timeline-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1.5rem;
            position: relative;
        }
        .timeline-step-card {
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.25rem;
            position: relative;
            box-shadow: var(--shadow-subtle);
            transition: all 0.25s ease;
        }
        .timeline-step-card:hover {
            border-color: var(--color-primary);
            transform: translateY(-4px);
        }
        .step-badge {
            font-size: 0.8125rem;
            font-weight: 800;
            color: var(--color-primary);
            background: var(--color-primary-light);
            width: 2.25rem;
            height: 2.25rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
        }
        .step-title {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 0.5rem;
        }
        .step-desc {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            line-height: 1.55;
        }

        /* SECTION 10: 合作伙伴与架构生态 (Partners) */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 1.25rem;
        }
        .partner-box {
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 1.5rem 1rem;
            text-align: center;
            box-shadow: var(--shadow-subtle);
            transition: all 0.2s ease;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        .partner-box:hover {
            border-color: var(--color-primary);
            background: #F8FAFC;
        }
        .partner-name {
            font-size: 0.9375rem;
            font-weight: 700;
            color: #334155;
            margin-bottom: 0.25rem;
        }
        .partner-type {
            font-size: 0.75rem;
            color: #94A3B8;
        }

        /* SECTION 11: 平台质量与安全保障条 (Guarantee) */
        .guarantee-bar-strip {
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 2.5rem 3rem;
            box-shadow: var(--shadow-card);
        }
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }
        .guar-item {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
        }
        .guar-icon-box {
            width: 2.75rem;
            height: 2.75rem;
            background: var(--color-primary-light);
            color: var(--color-primary-dark);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .guar-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 0.375rem;
        }
        .guar-desc {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        /* SECTION 12: 试用入口与技术咨询转化 (Contact) */
        .contact-cta-wrapper {
            background: linear-gradient(135deg, #0B0E14 0%, #0F172A 100%);
            border-radius: var(--radius-lg);
            padding: 3.5rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
        }
        .contact-cta-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3.5rem;
            align-items: center;
        }
        .cta-text-side h3 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 1rem;
            color: #FFFFFF;
        }
        .cta-text-side p {
            font-size: 1rem;
            color: #CBD5E1;
            line-height: 1.7;
            margin-bottom: 1.75rem;
        }
        .cta-perks {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .perk-item {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-size: 0.875rem;
            color: #E2E8F0;
        }
        .perk-item span {
            color: var(--color-primary);
            font-weight: 800;
        }
        .cta-form-box {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 2rem;
            backdrop-filter: blur(12px);
        }
        .form-group {
            margin-bottom: 1.25rem;
        }
        .form-label {
            display: block;
            font-size: 0.8125rem;
            font-weight: 600;
            color: #CBD5E1;
            margin-bottom: 0.375rem;
        }
        .form-input, .form-select {
            width: 100%;
            padding: 0.75rem 1rem;
            background: rgba(15, 23, 42, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            color: #FFFFFF;
            font-size: 0.875rem;
            transition: all 0.2s ease;
        }
        .form-input:focus, .form-select:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(0, 195, 137, 0.2);
        }
        .form-input::placeholder {
            color: #64748B;
        }
        .form-submit-btn {
            width: 100%;
            padding: 0.875rem;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #FFFFFF;
            font-weight: 700;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 4px 15px rgba(0, 195, 137, 0.3);
        }
        .form-submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 195, 137, 0.45);
        }

        /* Site Footer */
        .site-footer {
            background: #0B0E14;
            color: #94A3B8;
            padding-top: 4.5rem;
            padding-bottom: 2.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.875rem;
        }
        .footer-top-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 3rem;
            margin-bottom: 3.5rem;
        }
        .footer-brand-title {
            font-size: 1.25rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-desc {
            line-height: 1.7;
            margin-bottom: 1.25rem;
            font-size: 0.8125rem;
            color: #64748B;
        }
        .footer-col-title {
            font-size: 0.9375rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }
        .footer-links-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .footer-links-list a {
            color: #94A3B8;
            transition: color 0.2s ease;
        }
        .footer-links-list a:hover {
            color: var(--color-primary);
        }
        .footer-contact-info {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            font-size: 0.8125rem;
        }
        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
        }
        .footer-bottom-bar {
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.75rem;
            color: #64748B;
        }
        .footer-verify-icons {
            display: flex;
            gap: 1rem;
            align-items: center;
        }
        .verify-tag {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 0.25rem 0.625rem;
            border-radius: var(--radius-sm);
            color: #94A3B8;
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .category-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .solutions-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-container-grid {
                grid-template-columns: 1fr;
            }
            .case-showcase-box {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .case-showcase-box.reverse {
                direction: ltr;
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline-steps {
                grid-template-columns: repeat(3, 1fr);
            }
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .contact-cta-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .footer-top-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 2.5rem;
            }
        }

        @media (max-width: 768px) {
            .utility-bar {
                display: none;
            }
            .main-nav {
                top: 0;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                padding: 1.5rem 2rem;
                box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--color-border-light);
            }
            .nav-links.active {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
            .hero-h1 {
                font-size: 2.25rem;
            }
            .hero-specs {
                flex-wrap: wrap;
                gap: 1.25rem;
            }
            .solutions-grid {
                grid-template-columns: 1fr;
            }
            .advantages-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .metric-item:not(:last-child)::after {
                display: none;
            }
            .timeline-steps {
                grid-template-columns: 1fr;
            }
            .ranking-row {
                grid-template-columns: 50px 1.5fr 1fr;
            }
            .ranking-row > *:nth-child(4),
            .ranking-row > *:nth-child(5) {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .category-matrix {
                grid-template-columns: 1fr;
            }
            .portal-grid-items {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .footer-top-grid {
                grid-template-columns: 1fr;
            }
            .contact-cta-wrapper {
                padding: 2rem 1.5rem;
            }
            .hero-section {
                padding: 3.5rem 0 4rem 0;
            }
        }