* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', 'Noto Sans', 'Helvetica Neue', sans-serif;
            background: linear-gradient(145deg, #fffaf2 0%, #fff5e8 100%);
            color: #2c2418;
            line-height: 1.45;
            scroll-behavior: smooth;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 头部导航 */
        .header {
            background: rgba(255, 250, 240, 0.92);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(235, 205, 167, 0.5);
        }
        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.9rem 0;
        }
        .logo a {
            font-size: 1.7rem;
            font-weight: 800;
            background: linear-gradient(135deg, #e09d5e, #c2742c);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            text-decoration: none;
        }
        .nav-links {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }
        .nav-links a {
            text-decoration: none;
            font-weight: 600;
            color: #7d6444;
            transition: 0.2s;
        }
        .nav-links a:hover { color: #e08e3a; }
        /* 页面头部 */
        .page-header {
            text-align: center;
            padding: 2.5rem 0 1rem;
        }
        .page-header h1 {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(125deg, #b86f2e, #e7a15f);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.02em;
            margin-bottom: 0.5rem;
        }
        .page-header p {
            font-size: 1.2rem;
            color: #9b7f5c;
            max-width: 620px;
            margin: 0 auto;
        }
        /* 下载卡片网格 */
        .download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin: 3rem 0 2rem;
        }
        .download-card {
            background: #fffff7;
            border-radius: 2rem;
            padding: 1.8rem 1.2rem;
            text-align: center;
            transition: transform 0.2s ease, box-shadow 0.2s;
            border: 1px solid #ffe5ca;
            box-shadow: 0 10px 20px -8px rgba(90, 60, 30, 0.08);
        }
        .download-card:hover {
            transform: translateY(-8px);
            border-color: #ffdaad;
            background: #ffffff;
            box-shadow: 0 20px 30px -12px rgba(168, 102, 33, 0.15);
        }
        .os-icon {
            font-size: 3rem;
            margin-bottom: 0.6rem;
        }
        .download-card h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #c28441;
            margin-bottom: 0.2rem;
        }
        .version-badge {
            display: inline-block;
            background: #fff0dc;
            color: #d9923a;
            font-size: 0.7rem;
            padding: 0.2rem 0.9rem;
            border-radius: 40px;
            margin-bottom: 0.8rem;
            font-weight: 700;
        }
        .download-desc {
            color: #8e7656;
            font-size: 0.85rem;
            margin: 0.6rem 0 1.2rem;
            line-height: 1.4;
        }
        .btn-group {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            align-items: center;
        }
        .download-btn {
            display: inline-block;
            background: #f5cf9b;
            color: #a2692a;
            padding: 0.6rem 1.2rem;
            border-radius: 60px;
            text-decoration: none;
            font-weight: 700;
            font-size: 0.9rem;
            transition: all 0.2s;
            width: 85%;
            text-align: center;
        }
        .download-btn:hover {
            background: #f3c68b;
            color: #8b591f;
            transform: scale(0.97);
        }
        .mirror-link {
            font-size: 0.7rem;
            color: #b88f5a;
            text-decoration: none;
            border-bottom: 1px dashed #e7cbaa;
        }
        .mirror-link:hover { color: #d98f3a; }
        /* 特性亮点区域 */
        .feature-bento {
            background: #fff7ef;
            border-radius: 2rem;
            padding: 2rem;
            margin: 2rem 0;
            border: 1px solid #ffefdd;
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            justify-content: space-between;
        }
        .bento-item {
            flex: 1;
            min-width: 160px;
            text-align: center;
            background: white;
            border-radius: 1.5rem;
            padding: 1rem 0.6rem;
            border: 1px solid #ffe2c9;
        }
        .bento-icon { font-size: 2rem; margin-bottom: 0.4rem; }
        .bento-item h4 { color: #bc7a3c; margin-bottom: 0.3rem; }
        .bento-item p { font-size: 0.75rem; color: #8c7355; }
        /* 安全提示 */
        .info-note {
            background: #fff7ed;
            border-radius: 1.5rem;
            padding: 1.2rem 1.8rem;
            margin: 1rem 0 2rem;
            text-align: center;
            border: 1px solid #ffefdb;
        }
        .checksum {
            font-family: monospace;
            background: #f3ede5;
            padding: 0.2rem 0.5rem;
            border-radius: 40px;
            font-size: 0.7rem;
            color: #b4682a;
        }
        /* 下载帮助栏 */
        .help-bar {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1rem;
            background: #fffaf5;
            border-radius: 1.5rem;
            padding: 1rem 1.5rem;
            margin-bottom: 2rem;
        }
        /* 页脚 */
        .footer {
            border-top: 1px solid #ffefdb;
            background: #fffaf2;
            padding: 2rem 0;
            margin-top: 1rem;
            text-align: center;
            color: #b48a5a;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
            margin-bottom: 1rem;
        }
        .footer-links a { text-decoration: none; color: #ba8b4a; }
        .footer-links a:hover { color: #d98f3a; }
        @media (max-width: 780px) {
            .download-grid { grid-template-columns: 1fr; max-width: 380px; margin-left: auto; margin-right: auto; }
            .nav { flex-direction: column; gap: 0.8rem; }
            .page-header h1 { font-size: 2rem; }
            .feature-bento { flex-direction: column; gap: 1rem; }
            .help-bar { flex-direction: column; text-align: center; }
        }