/* ========== 极简重置 + 创意核心 ========== */
        *{margin:0;padding:0;box-sizing:border-box;}
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f9fafc;
            color: #0b1e33;
            line-height: 1.5;
            scroll-behavior: smooth;
        }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        
        /* 头部 — 毛玻璃现代 */
        header {
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid #eef2f6;
        }
        .header-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 14px 0;
        }
        .logo-area h1 {
            font-size: 1.9rem;
            font-weight: 750;
            background: linear-gradient(145deg, #0f2b4b, #2563eb);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .logo-area p {
            font-size: 0.75rem;
            color: #54708f;
            margin-top: 4px;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        .nav-links {
            display: flex;
            gap: 1.4rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-links a {
            text-decoration: none;
            font-weight: 530;
            color: #1e2f44;
            transition: color 0.15s;
            font-size: 0.95rem;
        }
        .nav-links a:hover, .nav-links a.active {
            color: #2563eb;
        }

        /* 决策中枢 —— 创意身份卡片 */
        .hero-decision {
            text-align: center;
            padding: 48px 0 28px;
        }
        .badge-2026 {
            display: inline-block;
            background: #dbeafe;
            color: #1e4bd2;
            padding: 6px 20px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 20px;
            border: 1px solid #bdd3ff;
        }
        .hero-decision h2 {
            font-size: 3.2rem;
            font-weight: 800;
            background: linear-gradient(135deg, #0f2b4b, #2563eb, #3b82f6);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .persona-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: 40px 0 30px;
        }
        .persona-card {
            background: white;
            border-radius: 32px;
            padding: 28px 18px 24px;
            box-shadow: 0 15px 30px -8px rgba(0,35,70,0.06);
            border: 1px solid #e9edf4;
            transition: all 0.2s ease;
            text-align: center;
            cursor: pointer;
        }
        .persona-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 28px 35px -12px rgba(37,99,235,0.12);
            border-color: #bdd3ff;
        }
        .persona-emoji { font-size: 3.2rem; margin-bottom: 18px; }
        .persona-card h3 { font-size: 1.7rem; font-weight: 700; margin-bottom: 8px; }
        .persona-badge {
            background: #eef4ff;
            padding: 4px 10px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #2563eb;
            display: inline-block;
            margin: 8px 0 12px;
        }
        .persona-desc { color: #3e5a77; font-size: 0.9rem; margin-bottom: 18px; }
        .persona-btn {
            background: transparent;
            border: 1.5px solid #2563eb;
            color: #2563eb;
            padding: 8px 22px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: 0.15s;
            display: inline-block;
        }
        .persona-btn:hover { background: #2563eb; color: white; }

        /* 智能推荐 — 第二屏核心 */
        .recommend-box {
            background: linear-gradient(105deg, #ffffff 0%, #f5faff 100%);
            border-radius: 48px;
            padding: 40px 40px;
            margin: 50px 0 40px;
            border: 1px solid #d9e6ff;
            box-shadow: 0 25px 40px -20px rgba(0,67,156,0.12);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }
        .recommend-left { flex: 2; }
        .rec-chip {
            background: #1e3b63;
            color: white;
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 20px;
        }
        .recommend-left h3 { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; }
        .rec-highlight { color: #2563eb; }
        .reason-list { list-style: none; margin: 24px 0; }
        .reason-list li { margin-bottom: 12px; font-size: 1.1rem; display: flex; align-items: center; gap: 10px; }
        .check-icon { color: #10b981; font-weight: bold; font-size: 1.4rem; }
        .recommend-right { flex: 1; text-align: center; }
        .download-big-btn {
            background: #1e3b63;
            color: white;
            padding: 18px 38px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1.3rem;
            text-decoration: none;
            display: inline-block;
            box-shadow: 0 16px 28px -8px rgba(30,59,99,0.3);
            transition: 0.15s;
            border: none;
            cursor: pointer;
            margin-bottom: 12px;
        }
        .download-big-btn:hover { background: #0f2b4b; transform: scale(1.02); }
        .small-note { color: #52739c; font-size: 0.9rem; }

        /* 生态地图 — 节点可视化 */
        .eco-map { margin: 70px 0 40px; }
        .map-title { font-size: 2rem; font-weight: 700; text-align: center; margin-bottom: 40px; }
        .map-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px 50px;
            background: #ffffffd6;
            border-radius: 60px;
            padding: 40px 20px;
            backdrop-filter: blur(4px);
            border: 1px solid #eef2f8;
        }
        .map-node { text-align: center; min-width: 160px; }
        .node-main {
            background: #1e3b63;
            color: white;
            padding: 18px 16px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1.4rem;
            box-shadow: 0 15px 20px -6px rgba(0,0,0,0.1);
        }
        .node-sub { margin-top: 15px; display: flex; flex-direction: column; gap: 8px; }
        .sub-item {
            background: #eef4ff;
            padding: 10px 12px;
            border-radius: 40px;
            font-weight: 500;
            color: #1e3b63;
            border: 1px solid #cfdff5;
        }
        .legacy-node { opacity: 0.8; }
        .legacy-node .node-main { background: #64748b; }
        .arrow-symbol { font-size: 2.5rem; color: #3b82f6; align-self: center; }

        /* 快速入口网格 — 新增 SEO 枢纽 (分流/解决方案/更新) */
        .quick-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin: 48px 0 30px;
        }
        .quick-card {
            background: white;
            padding: 28px 20px;
            border-radius: 30px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.02);
            border: 1px solid #e9edf4;
            transition: all 0.15s;
            text-decoration: none;
            color: inherit;
            display: block;
        }
        .quick-card:hover {
            border-color: #2563eb;
            box-shadow: 0 18px 30px -10px rgba(37,99,235,0.1);
            transform: translateY(-3px);
        }
        .quick-emoji { font-size: 2.5rem; margin-bottom: 18px; }
        .quick-card h4 { font-size: 1.5rem; margin-bottom: 8px; color: #0b1e33; }
        .quick-card p { color: #4a607a; font-size: 0.95rem; }

        /* 常见问题 + 更新摘要融合区 */
        .faq-update-row {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin: 30px 0 60px;
        }
        .faq-box {
            flex: 2;
            background: #ffffffd6;
            border-radius: 32px;
            padding: 32px;
            border: 1px solid #eef2f8;
        }
        .faq-box h3 { font-size: 1.9rem; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
        .faq-item { margin-bottom: 18px; border-bottom: 1px dashed #d0ddee; padding-bottom: 12px; }
        .faq-q { font-weight: 700; color: #1e3b63; margin-bottom: 6px; }
        .faq-a { color: #365573; }
        .update-box {
            flex: 1.2;
            background: #0f2b4b;
            border-radius: 32px;
            padding: 32px;
            color: white;
        }
        .update-box h3 { font-size: 1.8rem; margin-bottom: 16px; color: white; }
        .update-list { list-style: none; }
        .update-list li { padding: 12px 0; border-bottom: 1px solid #254a6e; display: flex; gap: 12px; }
        .update-date { background: #2563eb; padding: 2px 12px; border-radius: 30px; font-size: 0.75rem; font-weight: 600; }
        .update-link { color: #bdd3ff; text-decoration: none; font-weight: 500; }
        .update-link:hover { text-decoration: underline; }

        /* CTA 下载区 */
        .cta-download-section {
            background: #0f2b4b;
            border-radius: 60px;
            padding: 48px 40px;
            margin: 60px 0;
            color: white;
            text-align: center;
        }
        .cta-download-section h3 { font-size: 2.5rem; font-weight: 700; margin-bottom: 20px; }
        .btn-light {
            background: white;
            color: #0f2b4b;
            padding: 16px 48px;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1.3rem;
            text-decoration: none;
            display: inline-block;
            margin-top: 20px;
            transition: 0.2s;
        }
        .btn-light:hover { background: #e0edff; transform: scale(1.02); }

        footer {
            background: #0b1a2a;
            color: #b0c7de;
            padding: 40px 0 24px;
            margin-top: 20px;
            border-top: 1px solid #1e3347;
        }
        .footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 32px; }
        .footer-copyright {
            text-align: center;
            padding-top: 32px;
            font-size: 0.85rem;
            border-top: 1px solid #1e3347;
            margin-top: 24px;
        }

        @media (max-width: 900px) {
            .persona-grid { grid-template-columns: repeat(2, 1fr); }
            .recommend-box { flex-direction: column; text-align: center; }
            .map-container { flex-direction: column; align-items: center; }
            .arrow-symbol { transform: rotate(90deg); }
            .quick-grid { grid-template-columns: 1fr; }
            .faq-update-row { flex-direction: column; }
        }
        @media (max-width: 600px) {
            .persona-grid { grid-template-columns: 1fr; }
            .header-flex { flex-direction: column; gap: 12px; }
            .nav-links { gap: 0.8rem; justify-content: center; }
        }