@charset "UTF-8";
* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            background: linear-gradient(145deg, #f6f9fc 0%, #eef2f5 100%);
            font-family: system-ui, 'Segoe UI', 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Roboto', sans-serif;
            padding: 2rem 1.5rem;
            min-height: 100vh;
            color: #1a2c3e;
        }

        /* 主容器 */
        .container {
            max-width: 1300px;
            margin: 0 auto;
        }

        /* 头部 */
        .hero {
            text-align: left;
            margin-bottom: 3rem;
        }
        .hero h1 {
            font-size: 2.8rem;
            background: linear-gradient(135deg, #1e3c72, #2b4c7c);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
            display: inline-block;
            margin-bottom: 0.5rem;
        }
        .hero .tagline {
            font-size: 1.2rem;
            color: #4a627a;
            border-bottom: 2px solid rgba(43, 76, 124, 0.2);
            display: inline-block;
            padding-bottom: 6px;
        }
        .hero .desc {
            margin-top: 1rem;
            color: #3e5a76;
            background: rgba(255,255,240,0.6);
            backdrop-filter: blur(2px);
            display: inline-block;
            padding: 0.4rem 1.2rem;
            border-radius: 40px;
            font-size: 0.9rem;
        }

        /* 卡片网格 */
        .ai-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 1.8rem;
            margin-bottom: 3rem;
        }

        .card {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(0px);
            border-radius: 32px;
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.05), 0 0 0 1px rgba(0, 0, 0, 0.02);
            transition: all 0.25s ease;
            overflow: hidden;
            border: 1px solid rgba(255,255,255,0.5);
        }
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 24px 40px rgba(0, 0, 0, 0.1);
            background: white;
        }

        .card-header {
            padding: 1.4rem 1.8rem 0.4rem 1.8rem;
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .card-header h2 {
            font-size: 1.8rem;
            font-weight: 600;
            background: linear-gradient(120deg, #1f3b4c, #2c5a74);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
        }
        .badge {
            background: #eef2ff;
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 500;
            color: #1e4b6e;
        }

        .card-content {
            padding: 0.2rem 1.8rem 1.4rem 1.8rem;
        }
        .warning {
            background: #fff7e5;
            border-left: 5px solid #f5a623;
            padding: 0.8rem 1rem;
            border-radius: 20px;
            margin: 1rem 0;
            font-size: 0.85rem;
            color: #8e6b2c;
        }
        .btn-group {
            display: flex;
            gap: 0.8rem;
            margin-top: 1rem;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #f0f4f9;
            padding: 0.6rem 1.2rem;
            border-radius: 60px;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9rem;
            color: #1f3b4c;
            transition: 0.2s;
            border: 1px solid #cddfe7;
        }
        .btn-primary {
            background: #1e3c72;
            color: white;
            border: none;
            box-shadow: 0 2px 6px rgba(0,0,0,0.1);
        }
        .btn-primary:hover {
            background: #0f2b4f;
            transform: scale(0.97);
        }
        .btn-outline:hover {
            background: #e6edf2;
            border-color: #8fbbd0;
        }

        /* 更新日志区 */
        .changelog {
            background: white;
            border-radius: 36px;
            padding: 1.8rem 2rem;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.03);
            border: 1px solid #e2edf2;
            margin-top: 1rem;
        }
        .changelog h3 {
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 1rem;
            color: #1f4460;
        }
        .log-list {
            list-style: none;
        }
        .log-list li {
            padding: 0.6rem 0;
            border-bottom: 1px dashed #dee9ef;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .log-date {
            font-family: monospace;
            background: #eef3fa;
            padding: 0.2rem 0.7rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            color: #2a5f7a;
        }
        .log-text {
            color: #2e4b6b;
        }
        footer {
            margin-top: 3rem;
            text-align: center;
            font-size: 0.8rem;
            color: #6c8eaa;
            border-top: 1px solid #cbdde6;
            padding-top: 2rem;
        }
        @media (max-width: 680px) {
            body { padding: 1rem; }
            .hero {text-align: center;}
            .hero h1 { font-size: 2rem; }
            .card-header h2 { font-size: 1.5rem; }
        }