/* roulang page: index */
:root {
            --primary: #00F0FF;
            --primary-glow: rgba(0, 240, 255, 0.4);
            --primary-dark: #00b8c4;
            --secondary: #6366F1;
            --accent: #10B981;
            --warning: #F59E0B;
            --bg-main: #0B0F19;
            --bg-card: #131B2E;
            --bg-card-hover: #1A243D;
            --bg-light: #F8FAFC;
            --text-title: #FFFFFF;
            --text-body: #94A3B8;
            --text-muted: #64748B;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-highlight: rgba(0, 240, 255, 0.3);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 杂志刊头导航 */
        .masthead-header {
            background-color: rgba(11, 15, 25, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .masthead-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

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

        .brand-logo {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #FFFFFF 40%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .brand-tagline {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .masthead-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
        }

        .version-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 10px;
            background: rgba(0, 240, 255, 0.1);
            color: var(--primary);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-sm);
            font-weight: 600;
        }

        .status-dot {
            width: 6px;
            height: 6px;
            background-color: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--accent);
        }

        .masthead-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
        }

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

        .nav-link {
            font-size: 14px;
            font-weight: 600;
            color: #CBD5E1;
            padding: 4px 0;
            position: relative;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -12px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px var(--primary);
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #050811;
            box-shadow: 0 0 16px var(--primary-glow);
        }

        .btn-header:hover {
            background: #fff;
            box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
            transform: translateY(-1px);
        }

        /* 基础区块样式 */
        section {
            padding: 90px 0;
            position: relative;
        }

        .section-alt {
            background-color: #0E1424;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            margin-bottom: 56px;
        }

        .section-subtitle {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-title);
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-body);
            margin-top: 14px;
            max-width: 680px;
        }

        /* 1. Hero 痛点提问首屏 */
        .hero-section {
            padding: 80px 0 100px;
            background: radial-gradient(circle at 80% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 20% 60%, rgba(0, 240, 255, 0.08) 0%, transparent 40%),
                        url('/assets/images/76d3452df8da87ec.jpg') center/cover no-repeat;
            position: relative;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: rgba(11, 15, 25, 0.88);
            backdrop-filter: blur(4px);
        }

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

        .hero-badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 20px;
            font-size: 13px;
            color: #E2E8F0;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 20px;
        }

        .hero-title span {
            color: var(--primary);
        }

        .hero-desc {
            font-size: 16px;
            color: #94A3B8;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-stats-row {
            display: flex;
            gap: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }

        .hero-stat-item h4 {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
        }

        .hero-stat-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .hero-card-form {
            background: var(--bg-card);
            border: 1px solid var(--border-highlight);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            position: relative;
        }

        .form-header h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .form-header p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: #CBD5E1;
            margin-bottom: 8px;
        }

        .form-input, .form-select {
            width: 100%;
            padding: 12px 14px;
            background: #0B0F19;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-input:focus, .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
        }

        .btn-submit {
            width: 100%;
            padding: 14px;
            background: var(--primary);
            color: #050811;
            font-size: 15px;
            font-weight: 800;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 0 20px var(--primary-glow);
            margin-top: 10px;
        }

        .btn-submit:hover {
            background: #fff;
            box-shadow: 0 0 25px rgba(255, 255, 255, 0.6);
        }

        .form-notice {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 14px;
        }

        /* 2. 软件定位与性能展示 (#about) */
        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .showcase-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
        }

        .showcase-media img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .param-list {
            list-style: none;
            display: grid;
            gap: 16px;
            margin-top: 24px;
        }

        .param-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: rgba(255, 255, 255, 0.02);
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--primary);
        }

        .param-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 2px;
        }

        .param-desc {
            font-size: 13px;
            color: var(--text-body);
        }

        /* 3. 6大核心卖点网格 (#features) */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 30px;
            transition: var(--transition);
            position: relative;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-highlight);
            box-shadow: 0 12px 30px rgba(0, 240, 255, 0.08);
        }

        .feature-icon-box {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

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

        /* 4. 解决方案方案卡 (#editions) */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

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

        .solution-card.featured {
            border-color: var(--primary);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
            position: relative;
        }

        .solution-badge {
            background: var(--primary);
            color: #0B0F19;
            font-size: 11px;
            font-weight: 800;
            text-align: center;
            padding: 4px 0;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .solution-body {
            padding: 32px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .solution-body h3 {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }

        .solution-body p {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 20px;
        }

        .solution-specs {
            list-style: none;
            margin-top: auto;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            margin-bottom: 24px;
        }

        .solution-specs li {
            font-size: 13px;
            color: #CBD5E1;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .solution-specs li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 800;
        }

        .btn-card {
            display: block;
            text-align: center;
            padding: 12px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 700;
            border: 1px solid var(--border-color);
            color: #fff;
            background: rgba(255, 255, 255, 0.03);
        }

        .btn-card:hover {
            background: var(--primary);
            color: #0B0F19;
            border-color: var(--primary);
        }

        .solution-card.featured .btn-card {
            background: var(--primary);
            color: #0B0F19;
            border-color: var(--primary);
        }

        /* 5. 引擎渲染核心优势 (#technology) */
        .tech-box {
            background: #060911;
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-lg);
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .tech-info h3 {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .tech-info p {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 24px;
        }

        .tech-metrics {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 20px;
        }

        .metric-val {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
        }

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

        /* 6. 高光场景实测 (#scenarios) */
        .scenario-row {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 48px;
        }

        .scenario-row.reverse {
            grid-template-columns: 1.1fr 1fr;
        }

        .scenario-img-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .scenario-img-wrap img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .scenario-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .scenario-text p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .tag-pill-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-pill {
            font-size: 12px;
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            color: #CBD5E1;
            border: 1px solid var(--border-color);
        }

        /* 7. 性能数据看板 (#stats) */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
        }

        .stats-item h3 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: 8px;
        }

        .stats-item h3 span {
            color: var(--primary);
        }

        .stats-item p {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* 8. 创作者案例 (#stories) */
        .stories-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

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

        .story-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .story-content {
            padding: 28px;
        }

        .story-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
        }

        .story-author {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
        }

        .story-tag {
            font-size: 11px;
            color: var(--warning);
            background: rgba(245, 158, 11, 0.1);
            padding: 2px 8px;
            border-radius: var(--radius-sm);
        }

        .story-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .story-desc {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* 9. 口碑与评价墙 (#testimonials) */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .t-stars {
            color: var(--warning);
            font-size: 14px;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }

        .t-content {
            font-size: 14px;
            color: #E2E8F0;
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .t-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .t-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-weight: 800;
            font-size: 14px;
        }

        .t-info h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
        }

        .t-info span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 10. 技巧资讯卡片 (#insights) */
        .insights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .insight-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .insight-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-highlight);
        }

        .insight-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .insight-info {
            padding: 24px;
        }

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

        .insight-info h3 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .insight-info p {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 11. FAQ 手风琴 (#faq) */
        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.active {
            border-color: var(--border-highlight);
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
        }

        .faq-icon {
            font-size: 18px;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: rgba(0, 0, 0, 0.2);
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* 12. 底线终极转化与服务保障条 (#cta-bar) */
        .cta-bottom-box {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.1) 0%, rgba(99, 102, 241, 0.12) 100%), var(--bg-card);
            border: 1px solid var(--border-highlight);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
        }

        .cta-bottom-title {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-bottom-desc {
            font-size: 15px;
            color: #CBD5E1;
            max-width: 640px;
            margin: 0 auto 32px;
        }

        .cta-btn-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 28px;
        }

        .btn-large-primary {
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 800;
            background: var(--primary);
            color: #050811;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 24px var(--primary-glow);
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-large-primary:hover {
            background: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(255, 255, 255, 0.6);
        }

        .btn-large-outline {
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 700;
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-large-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0, 240, 255, 0.05);
        }

        .guarantee-badges {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 28px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .guarantee-item span {
            color: var(--accent);
            font-weight: 700;
        }

        /* 悬浮转化条 */
        .sticky-dock {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(11, 15, 25, 0.96);
            backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-highlight);
            padding: 12px 24px;
            z-index: 999;
            transform: translateY(100%);
            transition: transform 0.3s ease;
        }

        .sticky-dock.visible {
            transform: translateY(0);
        }

        .sticky-dock-inner {
            max-width: 1240px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .sticky-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .sticky-name {
            font-size: 15px;
            font-weight: 800;
            color: #fff;
        }

        .sticky-spec {
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .btn-back-top {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-body);
            cursor: pointer;
        }

        .btn-back-top:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* 页脚 */
        .site-footer {
            background: #060911;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 32px;
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            line-height: 1.8;
            margin-bottom: 16px;
            color: var(--text-body);
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
            display: grid;
            gap: 10px;
        }

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

        .footer-meta-item {
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 移动端汉堡菜单 */
        .menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: #fff;
            cursor: pointer;
        }

        /* 响应式断点适配 */
        @media (max-width: 1024px) {
            .hero-grid, .showcase-grid, .tech-box {
                grid-template-columns: 1fr;
            }
            .features-grid, .solutions-grid, .testimonials-grid, .insights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .masthead-nav {
                position: relative;
            }
            .menu-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #0B0F19;
                flex-direction: column;
                padding: 16px;
                border: 1px solid var(--border-color);
                border-radius: var(--radius-sm);
                gap: 14px;
                box-shadow: 0 10px 25px rgba(0,0,0,0.5);
            }
            .nav-links.active-menu {
                display: flex;
            }
            .btn-header {
                display: none;
            }
            .hero-title {
                font-size: 32px;
            }
            .section-title {
                font-size: 26px;
            }
            .features-grid, .solutions-grid, .testimonials-grid, .insights-grid, .stories-grid {
                grid-template-columns: 1fr;
            }
            .scenario-row, .scenario-row.reverse {
                grid-template-columns: 1fr;
            }
            .tech-metrics {
                grid-template-columns: 1fr;
            }
            .sticky-spec {
                display: none;
            }
            .cta-btn-group {
                flex-direction: column;
            }
            .btn-large-primary, .btn-large-outline {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }