:root {
            --primary-color: #0b3d91; 
            --accent-color: #f03e3e;  
            --bg-color: #f4f7f9;
            --text-main: #1e293b;
            --text-light: #64748b;
            --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
            --hover-shadow: 0 15px 40px rgba(11, 61, 145, 0.12);
        }
        * { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
        body { background-color: var(--bg-color); color: var(--text-main); line-height: 1.6; overflow-x: hidden; }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        ul { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        /* ================= 供搜索引擎与屏幕阅读器抓取的隐藏图片类 ================= */
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border-width: 0; }
.responsive-image {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    object-fit: contain;
}
        /* ================= 动画特效 ================= */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-up { animation: fadeInUp 0.8s ease forwards; }

        /* ================= 头部导航 ================= */
        header { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(12px); box-shadow: 0 2px 10px rgba(0,0,0,0.03); position: sticky; top: 0; z-index: 100; }
        .nav-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
        .logo { font-size: 26px; font-weight: 800; color: var(--primary-color); display: flex; align-items: center; gap: 8px;}
        .logo-icon { width: 30px; height: 30px; background: var(--accent-color); border-radius: 6px; display: inline-block; position: relative; }
        .logo-icon::after { content: 'M'; color: #fff; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); font-size: 18px; }
        .nav-links { display: flex; gap: 35px; }
        .nav-links a { font-weight: 600; color: var(--text-main); position: relative; }
        .nav-links a::after { content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 2px; background: var(--accent-color); transition: width 0.3s; }
        .nav-links a:hover::after { width: 100%; }
        .nav-links a:hover { color: var(--primary-color); }
        .tag-2026 { background: #ff9800; color: #fff; font-size: 10px; padding: 2px 6px; border-radius: 4px; vertical-align: top; margin-left: 4px; font-weight: bold; }

        /* ================= 首屏 Hero ================= */
        .hero { background: linear-gradient(135deg, #020617 0%, #0f172a 100%); color: #fff; padding: 80px 0; position: relative; overflow: hidden; }
        .hero::before { content: ''; position: absolute; top: -50%; right: -10%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(56,189,248,0.15) 0%, rgba(255,255,255,0) 70%); border-radius: 50%; }
        .hero-inner { display: flex; align-items: center; justify-content: space-between; position: relative; z-index: 2; }
        .hero-text { flex: 1; max-width: 620px; }
        .hero h1 { font-size: 44px; line-height: 1.3; margin-bottom: 20px; text-shadow: 0 2px 4px rgba(0,0,0,0.5); }
        .hero h1 span { color: #38bdf8; } 
        .hero p { font-size: 18px; color: #94a3b8; margin-bottom: 35px; }
        .btn-group { display: flex; gap: 15px; }
        .btn-main { background: var(--accent-color); color: #fff; padding: 15px 35px; border-radius: 30px; font-size: 18px; font-weight: bold; box-shadow: 0 4px 15px rgba(240, 62, 62, 0.4); }
        .btn-main:hover { background: #c92a2a; transform: translateY(-2px); color: #fff; }
        .btn-outline { background: transparent; color: #fff; padding: 15px 35px; border-radius: 30px; font-size: 18px; font-weight: bold; border: 2px solid #38bdf8; }
        .btn-outline:hover { background: rgba(56, 189, 248, 0.1); color: #fff; }
        .hero-graphic { flex: 1; text-align: right; display: none; }
        
        @media (min-width: 900px) {
            .hero-graphic { display: block; }
            .mockup { width: 260px; height: 520px; border: 12px solid #1e293b; border-radius: 40px; margin-left: auto; background: linear-gradient(180deg, #0f172a 0%, #020617 100%); position: relative; box-shadow: -20px 20px 40px rgba(0,0,0,0.6); overflow: hidden;}
            .mockup::before { content: '2026 AI-TRADE\n\nNVDA +5.2%\nTSLA +2.8%\nBTC +4.1%'; white-space: pre-line; position: absolute; top: 80px; left: 20px; color: #38bdf8; font-weight: bold; font-size: 22px; text-align: left; opacity: 0.9;}
        }

        /* ================= 通用区块设计 ================= */
        .section { padding: 80px 0; }
        .section-white { background: #fff; }
        .section-header { text-align: center; margin-bottom: 60px; }
        .section-header h2 { font-size: 32px; color: var(--text-main); margin-bottom: 15px; font-weight: 800;}
        .section-header h2 span { color: var(--primary-color); }
        .section-header p { color: var(--text-light); font-size: 16px; }

        /* ================= APP下载卡片 ================= */
        .app-grid { display: flex; flex-wrap: wrap; gap: 30px; justify-content: center; }
        .app-card { background: #fff; border-radius: 16px; padding: 30px 20px; text-align: center; box-shadow: var(--card-shadow); border: 1px solid #e2e8f0; position: relative; transition: all 0.3s ease; width: calc(33.333% - 20px); min-width: 280px; max-width: 350px;}
        .app-card:hover { transform: translateY(-10px); box-shadow: var(--hover-shadow); border-color: var(--primary-color); }
        .badge { position: absolute; top: -12px; right: 20px; background: linear-gradient(90deg, #ff8a00, #e52e71); color: #fff; padding: 5px 12px; border-radius: 20px; font-size: 12px; font-weight: bold; box-shadow: 0 4px 10px rgba(229, 46, 113, 0.3); }
        .app-icon { width: 80px; height: 80px; background: linear-gradient(135deg, #f1f5f9 0%, #cbd5e1 100%); border-radius: 20px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; font-size: 28px; font-weight: bold; color: var(--primary-color); }
        .stars { color: #f59e0b; font-size: 14px; margin-bottom: 10px; }
        .app-card h3 { font-size: 22px; margin-bottom: 10px; color: #0f172a; }
        .app-card p { font-size: 14px; color: var(--text-light); margin-bottom: 25px; line-height: 1.6; height: 45px; }
        .download-btns { display: flex; flex-direction: column; gap: 10px; }
        .btn-dl { padding: 10px; border-radius: 8px; font-size: 14px; font-weight: 600; display: flex; align-items: center; justify-content: center; gap: 8px; }
        .btn-dl-primary { background: var(--primary-color); color: #fff; }
        .btn-dl-primary:hover { background: #082f70; color: #fff; }
        .btn-dl-sec { background: #f1f5f9; color: var(--text-main); }
        .btn-dl-sec:hover { background: #e2e8f0; }

        /* ================= SEO表格 ================= */
        .table-wrapper { overflow-x: auto; background: #fff; border-radius: 12px; box-shadow: var(--card-shadow); border: 1px solid #e2e8f0; }
        table { width: 100%; border-collapse: collapse; min-width: 850px; text-align: center; }
        th { background: #0f172a; color: #fff; padding: 18px 15px; font-size: 16px; font-weight: 600; }
        td { padding: 16px 15px; border-bottom: 1px solid #e2e8f0; color: var(--text-main); font-size: 15px; }
        tr:last-child td { border-bottom: none; }
        tr:hover td { background-color: #f8fafc; }
        .highlight-text { color: var(--accent-color); font-weight: bold; }
        .tech-text { color: #0284c7; font-weight: 600; }

        /* ================= 热门问答 FAQ ================= */
        .faq-container { max-width: 900px; margin: 0 auto; }
        .faq-item { background: #fff; border-radius: 12px; padding: 25px 30px; margin-bottom: 20px; box-shadow: 0 4px 15px rgba(0,0,0,0.02); border-left: 5px solid var(--primary-color); transition: transform 0.2s; }
        .faq-item:hover { transform: translateX(5px); }
        
        /* 百度爬虫高度依赖H标签，将原div改为h3并继承样式 */
        h3.faq-q { font-size: 18px; font-weight: bold; color: #0f172a; margin-bottom: 12px; display: flex; align-items: flex-start; gap: 10px; }
        h3.faq-q::before { content: 'Q.'; color: var(--accent-color); font-size: 22px; line-height: 1; font-weight: 900;}
        
        .faq-a { font-size: 15px; color: #475569; line-height: 1.7; display: flex; align-items: flex-start; gap: 10px; }
        .faq-a::before { content: 'A.'; color: #94a3b8; font-size: 20px; font-weight: bold; line-height: 1; }
        /* 新增内链文本样式 */
        .faq-a a { color: var(--primary-color); text-decoration: underline; text-underline-offset: 4px; font-weight: 600; }
        .faq-a a:hover { color: var(--accent-color); }

        /* ================= 底部 ================= */
        footer { background: #020617; color: #94a3b8; padding: 60px 0 30px; font-size: 14px; border-top: 1px solid #1e293b; }
        .footer-grid { display: flex; justify-content: space-between; border-bottom: 1px solid #1e293b; padding-bottom: 30px; margin-bottom: 30px; flex-wrap: wrap; gap: 30px; }
        .footer-logo { font-size: 24px; font-weight: bold; color: #fff; margin-bottom: 15px; display: block; }
        .footer-links h4 { color: #fff; margin-bottom: 15px; font-size: 16px; }
        .footer-links a { color: #94a3b8; display: block; margin-bottom: 10px; }
        .footer-links a:hover { color: #38bdf8; text-decoration: none;}
        .disclaimer { font-size: 12px; line-height: 1.8; color: #475569; }

        /* 移动端适配 */
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .hero { padding: 50px 0; text-align: center; }
            .btn-group { justify-content: center; }
            .app-card { width: 100%; }
            .faq-item { padding: 20px; }
            .hero h1 { font-size: 36px; }
        }