/* roulang page: index */
:root {
            --primary-navy: #0B192C;
            --primary-teal: #008170;
            --emerald-vibrant: #10B981;
            --amber-warm: #F59E0B;
            --bg-light: #F8FAFC;
            --bg-mint: #F0FDF4;
            --surface-white: #FFFFFF;
            --text-main: #0F172A;
            --text-muted: #475569;
            --border-light: rgba(16, 185, 129, 0.15);
            --border-dark: rgba(255, 255, 255, 0.1);
            --shadow-card: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
            --shadow-hover: 0 25px 30px -5px rgba(0, 129, 112, 0.12), 0 10px 15px -3px rgba(0, 0, 0, 0.05);
            --radius-large: 24px;
            --radius-pill: 9999px;
            --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 顶部双行导航系统 */
        .header-topline {
            background-color: #060e18;
            color: #94A3B8;
            font-size: 0.8125rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 8px 0;
        }

        .header-topline .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .topline-meta {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .badge-live-pulse {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(16, 185, 129, 0.12);
            color: #34D399;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            font-weight: 500;
        }

        .pulse-dot {
            width: 7px;
            height: 7px;
            background-color: #10B981;
            border-radius: 50%;
            box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
            animation: pulse-ring 2s infinite cubic-bezier(0.66, 0, 0, 1);
        }

        @keyframes pulse-ring {
            0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
            70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
            100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
        }

        .main-nav-wrapper {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: var(--transition-smooth);
        }

        .main-nav-wrapper .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-symbol {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, #0B192C 0%, #008170 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-weight: 800;
            font-size: 1.25rem;
            box-shadow: 0 4px 10px rgba(0, 129, 112, 0.3);
        }

        .logo-text-group {
            display: flex;
            flex-direction: column;
        }

        .brand-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary-navy);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .brand-sub {
            font-size: 0.75rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            align-items: center;
            gap: 24px;
        }

        .nav-item a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 12px;
            border-radius: 8px;
        }

        .nav-item a:hover {
            color: var(--primary-teal);
            background-color: var(--bg-mint);
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--primary-teal) 0%, #0B192C 100%);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 0.9375rem;
            border-radius: var(--radius-pill);
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(0, 129, 112, 0.25);
            transition: var(--transition-smooth);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 129, 112, 0.35);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary-navy);
            margin: 5px 0;
            transition: var(--transition-smooth);
        }

        /* 基础 Section 排版结构 */
        section {
            padding: 90px 0;
            position: relative;
        }

        .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(--primary-teal);
            background: var(--bg-mint);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--primary-navy);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 1.0625rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 600;
        }

        .badge-emerald {
            background-color: #ECFDF5;
            color: #065F46;
            border: 1px solid #A7F3D0;
        }

        .badge-amber {
            background-color: #FFFBEB;
            color: #92400E;
            border: 1px solid #FDE68A;
        }

        /* 板块 1: Hero 首屏 */
        .section-hero {
            position: relative;
            background-color: #07101B;
            background-image: linear-gradient(rgba(7, 16, 27, 0.88), rgba(7, 16, 27, 0.95)), url('/assets/images/acb1d5d2b248ccd9.png');
            background-size: cover;
            background-position: center;
            color: #FFFFFF;
            padding: 110px 0 100px 0;
            overflow: hidden;
        }

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

        .hero-content h1 {
            font-size: 2.85rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
            color: #FFFFFF;
        }

        .hero-lead {
            font-size: 1.125rem;
            line-height: 1.8;
            color: #CBD5E1;
            margin-bottom: 32px;
        }

        .hero-keypoints {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 36px;
        }

        .hero-keypoint-item {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-pill);
            padding: 8px 18px;
            font-size: 0.875rem;
            color: #F1F5F9;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .hero-board-card {
            background: rgba(15, 23, 42, 0.75);
            border: 1px solid rgba(16, 185, 129, 0.3);
            border-radius: var(--radius-large);
            padding: 28px;
            backdrop-filter: blur(20px);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        }

        .board-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .board-metrics-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 20px;
        }

        .metric-cell {
            background: rgba(255, 255, 255, 0.04);
            border-radius: 16px;
            padding: 16px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .metric-cell .label {
            font-size: 0.8125rem;
            color: #94A3B8;
            margin-bottom: 6px;
        }

        .metric-cell .val {
            font-size: 1.5rem;
            font-weight: 700;
            color: #38BDF8;
        }

        /* 板块 2: 架构解构 (#overview) */
        .section-overview {
            background-color: var(--surface-white);
        }

        .overview-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .overview-img-wrap {
            position: relative;
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }

        .overview-img-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .overview-text-block h3 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--primary-navy);
            margin-bottom: 20px;
            line-height: 1.4;
        }

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

        .overview-features-list li {
            display: flex;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        .overview-features-list strong {
            color: var(--primary-navy);
        }

        /* 板块 3: 优势矩阵 (#advantages) */
        .section-advantages {
            background-color: var(--bg-light);
        }

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

        .card-matrix {
            background: var(--surface-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-large);
            padding: 32px 28px;
            transition: var(--transition-smooth);
            position: relative;
        }

        .card-matrix:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 129, 112, 0.4);
        }

        .card-matrix .num-indicator {
            font-size: 1.75rem;
            font-weight: 800;
            color: #E2E8F0;
            position: absolute;
            top: 24px;
            right: 28px;
            line-height: 1;
        }

        .card-matrix h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-navy);
            margin-top: 12px;
            margin-bottom: 12px;
        }

        .card-matrix p {
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 板块 4: 功能套件 (#features) */
        .section-features {
            background-color: var(--surface-white);
        }

        .suites-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .card-suite {
            background: var(--surface-white);
            border-radius: var(--radius-large);
            border: 1px solid #E2E8F0;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition-smooth);
        }

        .card-suite:hover {
            transform: translateY(-5px);
            border-color: var(--primary-teal);
        }

        .suite-cover {
            height: 180px;
            overflow: hidden;
        }

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

        .card-suite:hover .suite-cover img {
            transform: scale(1.05);
        }

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

        .suite-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-navy);
            margin-bottom: 12px;
        }

        .suite-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .suite-specs {
            margin-top: auto;
            border-top: 1px solid #F1F5F9;
            padding-top: 16px;
            margin-bottom: 20px;
            list-style: none;
            font-size: 0.85rem;
            color: #64748B;
        }

        .suite-specs li {
            padding: 4px 0;
            display: flex;
            justify-content: space-between;
        }

        /* 板块 5: 代谢对比 (#metabolism) */
        .section-metabolism {
            background-color: #0D1520;
            color: #FFFFFF;
        }

        .section-metabolism .section-title {
            color: #FFFFFF;
        }

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

        .contrast-table-box {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-large);
            padding: 32px;
            backdrop-filter: blur(10px);
        }

        .contrast-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .contrast-col {
            border-radius: 16px;
            padding: 24px;
        }

        .contrast-col.legacy {
            background: rgba(255, 255, 255, 0.02);
            border: 1px dashed rgba(255, 255, 255, 0.15);
        }

        .contrast-col.system-pro {
            background: linear-gradient(180deg, rgba(0, 129, 112, 0.15) 0%, rgba(11, 25, 44, 0.4) 100%);
            border: 1px solid rgba(16, 185, 129, 0.4);
        }

        .col-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

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

        .comparison-items li {
            font-size: 0.925rem;
            line-height: 1.6;
            color: #CBD5E1;
        }

        /* 板块 6: 实测案例 (#cases) */
        .section-cases {
            background-color: var(--bg-mint);
        }

        .case-hero-card {
            background: var(--surface-white);
            border-radius: var(--radius-large);
            padding: 40px;
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .case-data-badges {
            display: flex;
            gap: 12px;
            margin-bottom: 20px;
        }

        .case-stats-panel {
            background: #F8FAFC;
            border-radius: 20px;
            padding: 24px;
            border: 1px solid #E2E8F0;
        }

        .timeline-steps {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .timeline-steps li {
            position: relative;
            padding-left: 24px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .timeline-steps li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--primary-teal);
        }

        /* 板块 7: 大数据看板 (#metrics) */
        .section-metrics {
            background: linear-gradient(135deg, #09131F 0%, #004D40 100%);
            color: #FFFFFF;
            padding: 60px 0;
        }

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

        .counter-item .number {
            font-size: 2.75rem;
            font-weight: 800;
            color: #6EE7B7;
            line-height: 1.2;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }

        .counter-item .label {
            font-size: 0.95rem;
            color: #E2E8F0;
        }

        /* 板块 8: 专家评价 (#reviews) */
        .section-reviews {
            background-color: var(--surface-white);
        }

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

        .card-review {
            background: var(--bg-light);
            border-radius: var(--radius-large);
            padding: 32px;
            border: 1px solid #E2E8F0;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-quote {
            font-size: 0.95rem;
            color: var(--text-main);
            line-height: 1.7;
            margin-bottom: 24px;
            font-style: normal;
        }

        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .reviewer-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #CBD5E1;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #334155;
        }

        .reviewer-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--primary-navy);
        }

        .reviewer-title {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 板块 9: 科研资讯 (#insights) */
        .section-insights {
            background-color: var(--bg-light);
        }

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

        .card-insight {
            background: var(--surface-white);
            border-radius: var(--radius-large);
            overflow: hidden;
            border: 1px solid #E2E8F0;
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
        }

        .card-insight:hover {
            transform: translateY(-4px);
        }

        .insight-thumb {
            height: 180px;
        }

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

        .insight-body {
            padding: 24px;
        }

        .insight-date {
            font-size: 0.8rem;
            color: #94A3B8;
            margin-bottom: 8px;
        }

        .insight-body h3 {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--primary-navy);
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .insight-body p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .btn-link-scroll {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-teal);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 板块 10: 平台保障与合规 (#security) */
        .section-security {
            background-color: var(--surface-white);
        }

        .security-badge-wall {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 36px;
        }

        .security-pill-card {
            background: #F8FAFC;
            border: 1px solid #E2E8F0;
            border-radius: 16px;
            padding: 20px;
            text-align: center;
        }

        .security-pill-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary-navy);
            margin-bottom: 6px;
        }

        .security-pill-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 板块 11: 场景解答引导 (#solutions) */
        .section-solutions {
            background-color: var(--bg-mint);
        }

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

        .solution-card {
            background: var(--surface-white);
            border-radius: var(--radius-large);
            padding: 30px;
            border: 1px solid var(--border-light);
        }

        .solution-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-navy);
            margin-bottom: 12px;
        }

        .solution-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        /* 板块 12: 疑难解答手风琴 (#faq) */
        .section-faq {
            background-color: var(--surface-white);
        }

        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid #E2E8F0;
            border-radius: 16px;
            background: #FFFFFF;
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .faq-item[open] {
            border-color: var(--primary-teal);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--primary-navy);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::-webkit-details-marker {
            display: none;
        }

        .faq-question::after {
            content: "+";
            font-size: 1.5rem;
            font-weight: 400;
            color: var(--primary-teal);
            transition: transform 0.2s ease;
        }

        .faq-item[open] .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px 20px 24px;
            color: var(--text-muted);
            font-size: 0.9375rem;
            line-height: 1.7;
        }

        /* 板块 13: 预约演示表单 (#contact) */
        .section-contact {
            background-color: #07101B;
            background-image: linear-gradient(rgba(7, 16, 27, 0.9), rgba(7, 16, 27, 0.95)), url('/assets/images/9b86920868abf093.webp');
            background-size: cover;
            background-position: center;
            color: #FFFFFF;
        }

        .contact-form-wrapper {
            max-width: 760px;
            margin: 0 auto;
            background: rgba(15, 23, 42, 0.85);
            border: 1px solid rgba(16, 185, 129, 0.3);
            border-radius: var(--radius-large);
            padding: 44px;
            backdrop-filter: blur(20px);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
        }

        .form-title {
            font-size: 1.85rem;
            font-weight: 800;
            margin-bottom: 12px;
            text-align: center;
            color: #FFFFFF;
        }

        .form-desc {
            font-size: 0.95rem;
            color: #94A3B8;
            text-align: center;
            margin-bottom: 32px;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-group label {
            font-size: 0.875rem;
            color: #E2E8F0;
            font-weight: 500;
        }

        .form-control {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 12px;
            padding: 12px 16px;
            color: #FFFFFF;
            font-size: 0.925rem;
            outline: none;
            transition: var(--transition-smooth);
        }

        .form-control:focus {
            border-color: var(--emerald-vibrant);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
        }

        .form-btn-submit {
            grid-column: span 2;
            background: linear-gradient(135deg, var(--emerald-vibrant) 0%, var(--primary-teal) 100%);
            color: #FFFFFF;
            border: none;
            border-radius: var(--radius-pill);
            padding: 15px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-smooth);
            margin-top: 12px;
        }

        .form-btn-submit:hover {
            filter: brightness(1.1);
            box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
        }

        .form-privacy-note {
            grid-column: span 2;
            text-align: center;
            font-size: 0.8rem;
            color: #64748B;
            margin-top: 12px;
        }

        /* 页脚规范 */
        .site-footer {
            background-color: #03080F;
            color: #94A3B8;
            padding: 70px 0 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 50px;
        }

        .footer-brand h4 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-nav-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-nav-list a:hover {
            color: var(--emerald-vibrant);
        }

        .footer-copyright-bar {
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8125rem;
            color: #64748B;
        }

        /* 响应式断点控制 */
        @media (max-width: 1024px) {
            .matrix-grid, .suites-grid, .reviews-grid, .insights-grid, .solutions-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-grid, .overview-layout, .case-hero-card {
                grid-template-columns: 1fr;
            }
            .security-badge-wall, .counter-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-topline {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 76px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
                border-top: 1px solid #F1F5F9;
            }
            .nav-menu.active {
                display: flex;
            }
            .matrix-grid, .suites-grid, .reviews-grid, .insights-grid, .solutions-grid, .contrast-grid {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width, .form-btn-submit, .form-privacy-note {
                grid-column: span 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-copyright-bar {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .hero-content h1 {
                font-size: 2.15rem;
            }
            .section-title {
                font-size: 1.85rem;
            }
        }