* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Serif SC", serif;
            color: #2c2c2c;
            background: #fcf8f0;
            line-height: 1.8;
            font-size: 16px;
        }
        .site-header {
            max-width: 1100px;
            margin: 0 auto;
            padding: 18px 24px 14px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            border-bottom: 2px solid #d4b48c;
        }
        .logo-link {
            text-decoration: none;
            color: #5a2d0c;
            font-size: 24px;
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-link i { color: #d4a050; font-size: 26px; }
        .logo-link span { letter-spacing: 2px; }
        .nav-links {
            display: flex;
            gap: 6px;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-links a {
            color: #7a4a1a;
            text-decoration: none;
            font-size: 14px;
            padding: 6px 16px;
            border: 1px solid #d4b48c;
            border-radius: 4px;
            transition: all 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background: #d4b48c;
            color: #fff;
        }
        .hero {
            max-width: 1100px;
            margin: 0 auto;
            padding: 50px 24px 40px;
            text-align: center;
            background: linear-gradient(135deg, #fcf8f0 0%, #f5ede4 100%);
            border-radius: 0 0 20px 20px;
        }
        .hero h1 {
            font-size: 38px;
            font-weight: bold;
            color: #3d1f00;
            letter-spacing: 6px;
            margin-bottom: 8px;
        }
        .hero h1 i { color: #d4a050; margin-right: 12px; }
        .hero .subtitle {
            font-size: 18px;
            color: #6a5a4a;
            letter-spacing: 4px;
            margin-bottom: 14px;
        }
        .hero .desc {
            max-width: 700px;
            margin: 0 auto 20px;
            font-size: 15px;
            color: #5a4a3a;
            line-height: 2;
        }
        .hero .stats {
            display: flex;
            justify-content: center;
            gap: 50px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .hero .stats .stat-item {
            text-align: center;
        }
        .hero .stats .stat-item .num {
            font-size: 30px;
            font-weight: bold;
            color: #5a2d0c;
        }
        .hero .stats .stat-item .label {
            font-size: 13px;
            color: #8a7a6a;
        }
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 40px 24px;
        }
        .container-sm { padding-top: 0; }
        .section-title {
            text-align: center;
            margin-bottom: 28px;
        }
        .section-title h2 {
            font-size: 26px;
            font-weight: bold;
            color: #3d1f00;
            letter-spacing: 4px;
            display: inline-block;
            padding-bottom: 8px;
            border-bottom: 3px solid #d4b48c;
        }
        .section-title h2 i { color: #d4a050; margin-right: 10px; }
        .section-title p {
            font-size: 14px;
            color: #8a7a6a;
            margin-top: 6px;
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
            gap: 12px;
        }
        .category-grid a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 18px 12px;
            background: #fffcf9;
            border: 1px solid #e8ddd0;
            border-radius: 8px;
            text-decoration: none;
            color: #4a3a2a;
            font-size: 14px;
            transition: all 0.3s;
            text-align: center;
            min-height: 80px;
        }
        .category-grid a:hover {
            background: #d4b48c;
            color: #fff;
            transform: translateY(-4px);
            box-shadow: 0 6px 20px rgba(212,180,140,0.3);
        }
        .category-grid a i {
            font-size: 28px;
            margin-bottom: 6px;
            color: #d4a050;
        }
        .category-grid a:hover i { color: #fff; }
        .category-grid a .cat-count {
            font-size: 11px;
            color: #b8a898;
            margin-top: 2px;
        }
        .category-grid a:hover .cat-count { color: rgba(255,255,255,0.8); }
        .sutra-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
            gap: 12px;
        }
        .sutra-grid a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            background: #fffcf9;
            border: 1px solid #e8ddd0;
            border-radius: 6px;
            text-decoration: none;
            color: #4a3a2a;
            font-size: 14px;
            transition: all 0.3s;
        }
        .sutra-grid a:hover {
            background: #f5efe8;
            border-color: #d4b48c;
            transform: translateX(4px);
        }
        .sutra-grid a i {
            color: #d4a050;
            font-size: 16px;
            flex-shrink: 0;
        }
        .intro-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            background: #fffcf9;
            border: 1px solid #e8ddd0;
            border-radius: 12px;
            padding: 32px 36px;
        }
        .intro-box .intro-text h3 {
            font-size: 20px;
            color: #3d1f00;
            margin-bottom: 10px;
        }
        .intro-box .intro-text h3 i { color: #d4a050; margin-right: 8px; }
        .intro-box .intro-text p {
            font-size: 14px;
            color: #5a4a3a;
            line-height: 2;
   
        }
        .intro-box .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            align-content: center;
        }
        .intro-box .intro-features .feat {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            background: #f5efe8;
            border-radius: 6px;
            font-size: 14px;
            color: #4a3a2a;
        }
        .intro-box .intro-features .feat i {
            color: #d4a050;
            font-size: 18px;
            width: 20px;
            text-align: center;
        }
        .site-footer {
            max-width: 1100px;
            margin: 0 auto;
            padding: 30px 24px 20px;
            border-top: 2px solid #d4b48c;
            text-align: center;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .footer-links a {
            color: #7a6a5a;
            text-decoration: none;
            font-size: 14px;
            padding: 4px 8px;
            border-radius: 4px;
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover {
            color: #3d1f00;
            background: #f5efe8;
        }
        .copyright {
            color: #999;
            font-size: 13px;
            line-height: 1.8;
        }
        .copyright .sutra {
            color: #b8a898;
            margin-top: 6px;
            font-size: 14px;
            letter-spacing: 3px;
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 28px; letter-spacing: 3px; }
            .hero .subtitle { font-size: 15px; }
            .hero .stats { gap: 24px; }
            .hero .stats .stat-item .num { font-size: 24px; }
            .intro-box {
                grid-template-columns: 1fr;
                padding: 24px 20px;
            }
            .intro-box .intro-features {
                grid-template-columns: 1fr 1fr;
            }
            .category-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
            .sutra-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
        }
        @media (max-width: 480px) {
            .site-header { flex-direction: column; text-align: center; }
            .nav-links { justify-content: center; }
            .hero h1 { font-size: 22px; }
            .hero { padding: 30px 16px 24px; }
            .container { padding: 24px 16px; }
            .intro-box .intro-features { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
            .category-grid a { min-height: 60px; padding: 12px 8px; font-size: 12px; }
            .category-grid a i { font-size: 20px; }
            .sutra-grid { grid-template-columns: 1fr 1fr; }
            .sutra-grid a { font-size: 12px; padding: 8px 12px; }
        }