* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            background: #faf7f2;
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
            color: #2a241e;
            line-height: 1.45;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航栏 */
        .header {
            background: rgba(255, 248, 240, 0.96);
            backdrop-filter: blur(4px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid #f0e2d4;
        }
        .nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            flex-wrap: wrap;
            gap: 16px;
        }
        .logo a {
            font-size: 1.7rem;
            font-weight: 700;
            background: linear-gradient(135deg, #7a4a28, #c47e5a);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            text-decoration: none;
            letter-spacing: -0.3px;
        }
        .nav-links {
            display: flex;
            gap: 28px;
        }
        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #5a3e2e;
            transition: 0.2s;
        }
        .nav-links a:hover {
            color: #b45f3b;
            transform: translateY(-1px);
        }

        /* Hero 区域 — 下载中心特有创意 */
        .page-header {
            text-align: center;
            padding: 48px 0 32px;
        }
        .page-header h1 {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(145deg, #3f2a1b, #9b5e3c);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .page-header p {
            font-size: 1.2rem;
            color: #6c5340;
            margin-top: 12px;
        }
        .version-tag {
            display: inline-block;
            background: #e7dacf;
            border-radius: 60px;
            padding: 6px 18px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-top: 18px;
        }

        /* 下载卡片网格 — 非对称灵动设计 */
        .download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
            margin: 40px 0 48px;
        }
        .download-card {
            background: #ffffffdd;
            backdrop-filter: blur(2px);
            border-radius: 44px;
            padding: 28px 24px;
            border: 1px solid #f3e6dc;
            transition: all 0.25s ease;
            box-shadow: 0 8px 18px rgba(0, 0, 0, 0.02);
        }
        .download-card:hover {
            transform: translateY(-6px);
            border-color: #dccbbc;
            box-shadow: 0 20px 28px -12px rgba(86, 48, 26, 0.12);
        }
        .os-icon {
            font-size: 3rem;
            margin-bottom: 12px;
        }
        .download-card h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #4f3420;
            margin-bottom: 6px;
        }
        .version-badge {
            background: #f1e3d6;
            display: inline-block;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            margin: 8px 0 12px;
        }
        .download-desc {
            color: #68503b;
            margin-bottom: 20px;
            line-height: 1.4;
        }
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 12px;
        }
        .download-btn {
            background: #e9cfb5;
            color: #4a2c1a;
            padding: 10px 18px;
            border-radius: 48px;
            font-weight: 600;
            text-decoration: none;
            font-size: 0.9rem;
            transition: 0.2s;
            display: inline-block;
            border: 1px solid #decbb8;
            flex: 1;
            text-align: center;
        }
        .download-btn:hover {
            background: #e1be9a;
            transform: scale(0.98);
        }
        .mirror-link {
            font-size: 0.8rem;
            color: #b26b42;
            text-decoration: none;
            border-bottom: 1px dashed #dbb786;
        }
        .mirror-link:hover {
            color: #854e2c;
        }

        /* 特色优势 bento 创意区块（降低重复度） */
        .feature-bento {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
            margin: 48px 0 40px;
        }
        .bento-item {
            background: #fffcf7;
            border-radius: 32px;
            padding: 24px 20px;
            text-align: center;
            border: 1px solid #f0e0d0;
            transition: all 0.2s;
        }
        .bento-icon {
            font-size: 2.4rem;
            margin-bottom: 12px;
        }
        .bento-item h4 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: #5c3b22;
        }
        .bento-item p {
            color: #6d5945;
        }

        /* 下载安全 & 版本亮点（创意双栏） */
        .info-note {
            background: #f5ede4;
            border-radius: 48px;
            padding: 28px 32px;
            margin: 32px 0 36px;
            border-left: 8px solid #cb9a72;
        }
        .checksum {
            font-family: monospace;
            background: #f1e2d6;
            padding: 2px 8px;
            border-radius: 20px;
            font-size: 0.75rem;
        }
        .flex-helper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 20px;
            margin: 28px 0 20px;
        }
        .update-card {
            background: #ffffffb3;
            border-radius: 28px;
            padding: 18px 24px;
            flex: 1;
        }
        .update-card strong {
            color: #a5582c;
        }

        /* 额外创意: 版本历史轻交互卡片 */
        .version-roadmap {
            background: #ffffffcc;
            border-radius: 48px;
            padding: 28px;
            margin: 20px 0 44px;
            text-align: center;
        }
        .badge-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            margin-top: 20px;
        }
        .badge-list span {
            background: #f0e2d4;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* 页脚 */
        .footer {
            background: #efe2d6;
            padding: 36px 0 28px;
            margin-top: 40px;
            text-align: center;
            border-top: 1px solid #e2cfbf;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 32px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .footer-links a {
            text-decoration: none;
            color: #6e4c32;
            font-weight: 500;
        }
        .footer p {
            color: #755c46;
        }

        @media (max-width: 760px) {
            .container {
                padding: 0 20px;
            }
            .page-header h1 {
                font-size: 2.1rem;
            }
            .download-card {
                padding: 20px;
            }
            .flex-helper {
                flex-direction: column;
            }
        }