/* roulang page: index */
:root {
            --primary: #1E3A8A;
            --primary-dark: #0F172A;
            --accent-cyan: #0EA5E9;
            --accent-teal: #06B6D4;
            --highlight-amber: #F59E0B;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-light: rgba(226, 232, 240, 0.9);
            --radius-card: 20px;
            --radius-pill: 9999px;
            --shadow-subtle: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 16px 32px -4px rgba(14, 165, 233, 0.16);
            --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-body);
            line-height: 1.6;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部通栏 */
        .top-bar {
            height: 38px;
            background-color: var(--primary-dark);
            color: #94A3B8;
            font-size: 13px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

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

        .pulse-dot {
            width: 8px;
            height: 8px;
            background: #10B981;
            border-radius: 50%;
            box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
            100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
        }

        /* 主导航 */
        .header-main {
            height: 74px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
        }

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

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

        .logo-symbol {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--primary));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
        }

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

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

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

        .nav-btn {
            background: linear-gradient(135deg, var(--primary) 0%, #1D4ED8 100%);
            color: #ffffff;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 14px rgba(30, 58, 138, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 58, 138, 0.35);
        }

        /* 布局通用 */
        section {
            padding: 88px 0;
            position: relative;
        }

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

        .section-tag {
            display: inline-block;
            background: rgba(14, 165, 233, 0.1);
            color: #0284C7;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 34px;
            line-height: 1.35;
            color: var(--text-main);
            font-weight: 800;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

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

        /* Hero */
        #hero {
            padding: 70px 0 100px;
            background: radial-gradient(circle at top right, rgba(14, 165, 233, 0.12), transparent 50%),
                        radial-gradient(circle at bottom left, rgba(30, 58, 138, 0.08), transparent 40%),
                        linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
            position: relative;
            overflow: hidden;
        }

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

        .hero-left h1 {
            font-size: 46px;
            line-height: 1.25;
            color: var(--text-main);
            font-weight: 850;
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero-left h1 span {
            background: linear-gradient(120deg, #1E3A8A, #0284C7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

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

        .hero-point-pill {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #FFFFFF;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border-light);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            box-shadow: var(--shadow-subtle);
        }

        .hero-point-pill svg {
            width: 18px;
            height: 18px;
            fill: #0284C7;
        }

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

        .btn-large-primary {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--primary) 100%);
            color: #FFFFFF;
            padding: 16px 36px;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            box-shadow: 0 10px 24px rgba(14, 165, 233, 0.3);
            border: none;
            cursor: pointer;
            transition: var(--transition-smooth);
        }

        .btn-large-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(14, 165, 233, 0.4);
        }

        .hero-board-frame {
            background: #FFFFFF;
            border-radius: 24px;
            padding: 16px;
            box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.12);
            border: 1px solid var(--border-light);
            position: relative;
        }

        .hero-board-frame img {
            border-radius: 16px;
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .floating-stat-badge {
            position: absolute;
            bottom: -20px;
            left: -20px;
            background: #FFFFFF;
            padding: 14px 22px;
            border-radius: 16px;
            box-shadow: 0 12px 28px rgba(15, 23, 42, 0.15);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .badge-value {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }

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

        /* 卖点三连 */
        #core-pillars {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--border-light);
        }

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

        .pillar-card {
            background: var(--bg-light);
            padding: 40px 32px;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .pillar-card:hover {
            transform: translateY(-6px);
            background: #FFFFFF;
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-hover);
        }

        .pillar-num {
            font-size: 40px;
            font-weight: 900;
            color: rgba(14, 165, 233, 0.15);
            line-height: 1;
            margin-bottom: 16px;
        }

        .pillar-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .pillar-text {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* 概览与实测参数 */
        #overview {
            background: var(--bg-light);
        }

        .overview-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            background: #FFFFFF;
            padding: 48px;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
        }

        .tech-params-list {
            margin-top: 24px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .tech-param-item {
            background: var(--bg-light);
            padding: 14px 18px;
            border-radius: 12px;
            border-left: 3px solid var(--accent-cyan);
        }

        .param-title {
            font-size: 12px;
            color: var(--text-muted);
            text-transform: uppercase;
        }

        .param-detail {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-top: 4px;
        }

        /* 优势矩阵 3x2 */
        #matrix {
            background-color: #FFFFFF;
        }

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

        .matrix-card {
            background: #FFFFFF;
            padding: 32px 28px;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            transition: var(--transition-smooth);
        }

        .matrix-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 165, 233, 0.5);
        }

        .matrix-icon {
            width: 50px;
            height: 50px;
            background: rgba(14, 165, 233, 0.1);
            color: var(--accent-cyan);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 22px;
        }

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

        .matrix-p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* 场景演示（步骤条） */
        #scenarios {
            background: var(--bg-light);
        }

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

        .step-card {
            background: #FFFFFF;
            padding: 32px 24px;
            border-radius: 18px;
            border: 1px solid var(--border-light);
            position: relative;
        }

        .step-badge {
            display: inline-block;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 800;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
        }

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

        .step-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 服务方案套件 */
        #suites {
            background-color: #FFFFFF;
        }

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

        .suite-card {
            background: #FFFFFF;
            border-radius: 24px;
            border: 1px solid var(--border-light);
            padding: 40px 32px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition-smooth);
            position: relative;
        }

        .suite-card.highlight {
            border: 2px solid var(--accent-cyan);
            box-shadow: 0 16px 36px -6px rgba(14, 165, 233, 0.2);
        }

        .suite-tag-top {
            position: absolute;
            top: -14px;
            right: 32px;
            background: var(--highlight-amber);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
        }

        .suite-name {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .suite-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 24px;
        }

        .suite-feature-list {
            list-style: none;
            margin-bottom: 32px;
        }

        .suite-feature-list li {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .suite-feature-list li::before {
            content: "✓";
            color: var(--accent-cyan);
            font-weight: 800;
        }

        .suite-btn {
            display: block;
            text-align: center;
            padding: 12px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            background: var(--bg-light);
            color: var(--text-main);
            border: 1px solid var(--border-light);
            transition: var(--transition-smooth);
        }

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

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

        .suite-card.highlight .suite-btn:hover {
            background: #0284C7;
        }

        /* 深色沉浸式全球案例理念 */
        #dark-cases {
            background-color: var(--primary-dark);
            color: #F8FAFC;
        }

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

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

        .dark-box-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .dark-card-content {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 40px;
            border-radius: var(--radius-card);
        }

        .dark-spec-item {
            margin-bottom: 24px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .dark-spec-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }

        .dark-spec-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }

        .dark-spec-desc {
            font-size: 14px;
            color: #CBD5E1;
            line-height: 1.7;
        }

        /* 标杆客户真实落地故事 */
        #stories {
            background: var(--bg-light);
        }

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

        .story-item {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
        }

        .story-img-wrap {
            height: 180px;
            overflow: hidden;
        }

        .story-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }

        .story-item:hover .story-img-wrap img {
            transform: scale(1.05);
        }

        .story-content {
            padding: 28px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .story-badge-kpi {
            display: inline-block;
            background: rgba(16, 185, 129, 0.1);
            color: #059669;
            font-size: 13px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
        }

        .story-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .story-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 全球服务量化指标条 */
        #metrics-bar {
            background: linear-gradient(135deg, var(--primary) 0%, #0F2D6B 100%);
            padding: 60px 0;
            color: #FFFFFF;
        }

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

        .metric-num {
            font-size: 44px;
            font-weight: 900;
            color: #38BDF8;
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 4px;
        }

        .metric-sub {
            font-size: 12px;
            color: #94A3B8;
        }

        /* 对比差异 */
        #comparison {
            background-color: #FFFFFF;
        }

        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
        }

        .compare-table th, .compare-table td {
            padding: 20px 24px;
            text-align: left;
            font-size: 15px;
            border-bottom: 1px solid var(--border-light);
        }

        .compare-table th {
            background: var(--bg-light);
            font-weight: 700;
            color: var(--text-main);
        }

        .compare-table th.highlight-col {
            background: rgba(14, 165, 233, 0.1);
            color: #0284C7;
            font-size: 17px;
        }

        .compare-table td.highlight-col {
            background: rgba(14, 165, 233, 0.03);
            font-weight: 600;
            color: var(--primary);
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        /* 决策者评价 */
        #testimonials {
            background: var(--bg-light);
        }

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

        .testi-card {
            background: #FFFFFF;
            padding: 36px 28px;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .testi-quote {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-body);
            margin-bottom: 24px;
            position: relative;
        }

        .testi-author {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .avatar-initial {
            width: 44px;
            height: 44px;
            background: #E2E8F0;
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .author-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
        }

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

        /* 研报白皮书与资讯证据 */
        #insights {
            background-color: #FFFFFF;
        }

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

        .insight-card {
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            padding: 28px;
            background: var(--bg-light);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .insight-category {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-cyan);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .insight-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .insight-snippet {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 20px;
        }

        .insight-meta {
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            display: flex;
            justify-content: space-between;
        }

        /* FAQ 手风琴 */
        #faq {
            background: var(--bg-light);
        }

        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }

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

        .faq-question {
            padding: 22px 28px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-icon {
            font-size: 20px;
            color: var(--accent-cyan);
            transition: transform 0.3s;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 28px;
            color: var(--text-body);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-bottom: 22px;
        }

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

        /* 底层技术合规与 SLA 保障条 */
        #guarantee {
            background: #FFFFFF;
            padding: 48px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .guarantee-grid {
            display: flex;
            justify-content: space-around;
            align-items: center;
            flex-wrap: wrap;
            gap: 24px;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .guarantee-icon {
            width: 44px;
            height: 44px;
            background: rgba(14, 165, 233, 0.1);
            color: var(--accent-cyan);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: bold;
        }

        .guarantee-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
        }

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

        /* 预约演示收口表单 */
        #conversion-form {
            background: radial-gradient(circle at center, #1E3A8A 0%, #0F172A 100%);
            color: #FFFFFF;
            padding: 80px 0;
            text-align: center;
        }

        .form-container {
            max-width: 680px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.05);
            padding: 44px;
            border-radius: 24px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
        }

        .form-title {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .form-desc {
            font-size: 15px;
            color: #94A3B8;
            margin-bottom: 32px;
        }

        .form-inline-wrap {
            display: flex;
            gap: 12px;
        }

        .form-input {
            flex: 1;
            padding: 16px 20px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
            font-size: 15px;
            outline: none;
            transition: var(--transition-smooth);
        }

        .form-input::placeholder {
            color: #94A3B8;
        }

        .form-input:focus {
            border-color: var(--accent-cyan);
            background: rgba(255, 255, 255, 0.15);
        }

        .form-submit-btn {
            background: linear-gradient(135deg, var(--accent-cyan), #0284C7);
            color: #FFFFFF;
            padding: 16px 36px;
            border-radius: var(--radius-pill);
            border: none;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-smooth);
            white-space: nowrap;
        }

        .form-submit-btn:hover {
            opacity: 0.95;
            transform: translateY(-2px);
        }

        /* 底部固定转化条 */
        .floating-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 14px 0;
            z-index: 999;
            transform: translateY(100%);
            transition: transform 0.4s ease;
        }

        .floating-cta-bar.visible {
            transform: translateY(0);
        }

        .floating-bar-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .floating-bar-txt {
            color: #F8FAFC;
            font-size: 14px;
        }

        .floating-bar-txt strong {
            color: var(--accent-cyan);
        }

        .floating-bar-btn {
            background: var(--accent-cyan);
            color: #FFFFFF;
            padding: 8px 24px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            transition: var(--transition-smooth);
        }

        .floating-bar-btn:hover {
            background: #0284C7;
        }

        /* 页脚 */
        footer {
            background: var(--primary-dark);
            color: #94A3B8;
            padding: 72px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 56px;
        }

        .footer-brand-title {
            font-size: 18px;
            color: #FFFFFF;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 18px;
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition-smooth);
        }

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

        .footer-contact-info {
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 32px;
            font-size: 13px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-grid, .overview-box, .dark-box-grid {
                grid-template-columns: 1fr;
            }
            .matrix-grid, .suites-grid, .stories-grid, .testimonials-grid, .insights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .hero-left h1 {
                font-size: 32px;
            }
            .section-title {
                font-size: 26px;
            }
            .pillars-grid, .matrix-grid, .suites-grid, .stories-grid, .testimonials-grid, .insights-grid, .steps-container {
                grid-template-columns: 1fr;
            }
            .overview-box {
                padding: 24px;
            }
            .form-inline-wrap {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .floating-bar-txt {
                font-size: 12px;
            }
        }