* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Helvetica, 'Noto Sans', sans-serif;
            background: #f8fafc;
            color: #0f172a;
            line-height: 1.5;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
.navbar { background: white; box-shadow: 0 1px 3px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; max-width: 1200px; margin: 0 auto; }
.logo { font-size: 1.5rem; font-weight: 700; background: linear-gradient(135deg, #2563eb, #7c3aed); background-clip: text; -webkit-background-clip: text; color: transparent; }

/* 导航菜单默认横排 */
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { text-decoration: none; font-weight: 500; color: #334155; transition: color 0.2s; font-size: 1rem; }
.nav-links a:hover, .nav-links a.active { color: #2563eb; }

/* 手机端：默认隐藏导航，点击展开 */
.nav-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; padding: 5px; }
@media (max-width: 640px) {
  .nav-toggle { display: block; } /* 显示菜单按钮 */
  .nav-links {
    display: none; /* 默认隐藏 */
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    padding: 12px 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    flex-direction: row; /* 关键：横排 */
    justify-content: center;
    gap: 16px;
  }
  .nav-links.show { display: flex; } /* 点击展开 */
  .nav-links a { font-size: 0.9rem; }
}

        .hero {
            background: linear-gradient(135deg, #eef2ff 0%, #ffffff 100%);
            padding: 60px 0 70px;
            text-align: center;
            border-bottom: 1px solid #e2e8f0;
        }
        .hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, #1e293b, #2563eb);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 16px;
        }
        .hero p {
            font-size: 1.2rem;
            color: #475569;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.25s;
            cursor: pointer;
            border: none;
            font-size: 1rem;
        }
        .btn-primary {
            background: #2563eb;
            color: white;
            box-shadow: 0 4px 8px rgba(37,99,235,0.2);
        }
        .btn-primary:hover {
            background: #1d4ed8;
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid #2563eb;
            color: #2563eb;
        }
        .btn-outline:hover {
            background: #eff6ff;
            transform: translateY(-2px);
        }

        .section {
            padding: 64px 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .section-title {
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 40px;
            text-align: center;
            color: #0f172a;
        }
        .section-sub {
            text-align: center;
            color: #475569;
            margin-bottom: 48px;
        }

        .video-card {
            background: #0f172a;
            border-radius: 28px;
            overflow: hidden;
            box-shadow: 0 20px 35px -12px rgba(0,0,0,0.2);
            max-width: 880px;
            margin: 0 auto;
        }
        .video-wrapper {
            position: relative;
            width: 100%;
            padding-bottom: 56.25%;
            background: #000;
        }
        .video-wrapper iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: 0;
        }
        .live-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: #ef4444;
            color: white;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: bold;
            z-index: 2;
            box-shadow: 0 2px 6px rgba(0,0,0,0.2);
        }
        .video-info {
            padding: 20px 24px;
            background: white;
        }
        .video-info h3 {
            font-size: 1.4rem;
            margin-bottom: 8px;
        }
        .video-info p {
            color: #475569;
        }

        .download-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            justify-content: center;
        }
        .doc-card {
            background: white;
            border-radius: 24px;
            padding: 24px;
            width: 260px;
            text-align: center;
            box-shadow: 0 8px 20px rgba(0,0,0,0.03);
            border: 1px solid #eef2ff;
            transition: transform 0.2s;
        }
        .doc-card:hover {
            transform: translateY(-4px);
            border-color: #cbd5e1;
        }
        .doc-icon {
            font-size: 2.8rem;
            margin-bottom: 16px;
        }
        .doc-card h4 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }
        .doc-size {
            font-size: 0.8rem;
            color: #64748b;
            margin-bottom: 18px;
        }
        .download-btn {
            background: #f1f5f9;
            padding: 8px 18px;
            border-radius: 40px;
            text-decoration: none;
            color: #2563eb;
            font-weight: 500;
            display: inline-block;
            transition: background 0.2s;
        }
        .download-btn:hover {
            background: #e2e8f0;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: white;
            border-radius: 20px;
            margin-bottom: 16px;
            border: 1px solid #eef2ff;
            overflow: hidden;
        }
        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1.1rem;
            background: #ffffff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.2s;
        }
        .faq-question:hover {
            background: #f8fafc;
        }
        .faq-answer {
            padding: 0 24px 20px 24px;
            color: #334155;
            border-top: 1px solid #f0f2f5;
            line-height: 1.6;
            display: block;
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 32px;
        }
        .post-card {
            background: white;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.02);
            border: 1px solid #eef2ff;
            transition: all 0.25s;
        }
        .post-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -12px rgba(0,0,0,0.1);
        }
        .card-img {
            height: 180px;
            background: #cbd5e1;
            background-size: cover;
            background-position: center;
        }
        .card-content {
            padding: 20px;
        }
        .card-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .card-meta {
            color: #64748b;
            font-size: 0.8rem;
            margin-bottom: 12px;
        }
        .card-excerpt {
            color: #334155;
            margin-bottom: 20px;
            line-height: 1.5;
        }
        .read-more {
            color: #2563eb;
            font-weight: 600;
            text-decoration: none;
        }

        .article-container {
            background: white;
            border-radius: 32px;
            padding: 32px 28px;
            margin: 48px auto;
            max-width: 860px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.03);
            border: 1px solid #eef2ff;
        }
        .article-header {
            margin-bottom: 32px;
            border-bottom: 1px solid #eef2ff;
            padding-bottom: 20px;
        }
        .article-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .article-meta {
            color: #64748b;
            display: flex;
            gap: 24px;
            font-size: 0.9rem;
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.7;
            color: #1e293b;
        }
        .article-content p {
            margin-bottom: 1.5rem;
        }
        .article-content h2 {
            margin: 1.8rem 0 1rem;
            font-size: 1.6rem;
        }

        /* 上一篇 / 下一篇 样式 */
        .article-nav {
            display: flex;
            justify-content: space-between;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #eef2ff;
            gap: 20px;
        }
        .article-nav a {
            flex: 1;
            padding: 16px 20px;
            border-radius: 16px;
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            text-decoration: none;
            color: #2563eb;
            font-weight: 500;
            transition: all 0.2s;
        }
        .article-nav a:hover {
            background: #eff6ff;
            border-color: #cbd5e1;
        }
        .article-nav .prev {
            text-align: left;
        }
        .article-nav .next {
            text-align: right;
        }

        .footer {
            background: #ffffff;
            text-align: center;
            padding: 40px 20px;
            color: #5b6e8c;
            border-top: 1px solid #eef2ff;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 24px;
            text-decoration: none;
            color: #2563eb;
            font-weight: 500;
        }

        /* 🔥 唯一安全、不隐藏页面、只清理垃圾标签的 CSS */
        [date-time],
        [date-site],
        [data-id],
        [data-random],
        [draggable],
        [dropzone]
        {
            position: absolute !important;
            width: 0 !important;
            height: 0 !important;
            margin: 0 !important;
            padding: 0 !important;
            overflow: hidden !important;
            visibility: hidden !important;
            opacity: 0 !important;
            z-index: -999 !important;
            pointer-events: none !important;
        }/* 6a42ed0a15328 */