* { margin: 0; padding: 0; box-sizing: border-box; }
        
        .download-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 20px;
        }
        
        /* 页面标题 */
        .page-header {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .page-header .header-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
        }
        
        .page-header h1 {
            font-size: 42px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        
        .page-header p {
            font-size: 18px;
            color: var(--text-secondary);
        }
        
        /* 最新版本卡片 */
        .latest-version {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 32px;
            padding: 40px;
            margin-bottom: 40px;
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .latest-version::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 100%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }
        
        .latest-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
        }
        
        .latest-info h2 {
            font-size: 32px;
            margin-bottom: 10px;
        }
        
        .latest-info .version-badge {
            display: inline-block;
            background: rgba(255,255,255,0.2);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 18px;
            margin-right: 15px;
        }
        
        .latest-info .release-date {
            opacity: 0.9;
        }
        
        .latest-info .meta-info {
            margin-top: 20px;
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        .meta-info span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .meta-info img {
            width: 20px;
            height: 20px;
            filter: brightness(0) invert(1);
        }
        
        .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 18px 36px;
            background: #3B82F6;
            color: white;
            border-radius: 60px;
            font-size: 20px;
            font-weight: 700;
            text-decoration: none;
            transition: all 0.3s;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        
        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.3);
        }
        
        .download-btn img {
            width: 28px;
            height: 28px;
        }
        
        /* 特性网格 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            margin-bottom: 50px;
        }
        
        .feature-item {
            background: var(--bg-primary);
            border-radius: 20px;
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }
        
        .feature-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        
        .feature-item img {
            width: 48px;
            height: 48px;
            margin-bottom: 16px;
        }
        
        .feature-item h4 {
            font-size: 18px;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        
        .feature-item p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        
        /* 环境要求 */
        .requirements-section {
            background: var(--bg-primary);
            border-radius: 24px;
            padding: 30px;
            margin-bottom: 50px;
            border: 1px solid var(--border-color);
        }
        
        .requirements-section h3 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            margin-bottom: 24px;
            color: var(--text-primary);
        }
        
        .requirements-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        
        .req-item {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 16px;
            background: var(--bg-secondary);
            border-radius: 16px;
        }
        
        .req-item img {
            width: 40px;
            height: 40px;
        }
        
        .req-info h5 {
            font-size: 16px;
            color: var(--text-primary);
        }
        
        .req-info p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        
        .req-badge {
            margin-left: auto;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
        }
        
        .req-badge.required {
            background: #fee2e2;
            color: #dc2626;
        }
        
        .req-badge.recommend {
            background: #fef3c7;
            color: #d97706;
        }
        
        /* 版本历史 */
        .version-history {
            margin-bottom: 50px;
        }
        
        .version-history h3 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            margin-bottom: 24px;
            color: var(--text-primary);
        }
        
        .version-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        
        .version-item {
            background: var(--bg-primary);
            border-radius: 20px;
            padding: 24px;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        
        .version-info {
            flex: 1;
        }
        
        .version-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        
        .version-number {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
        }
        
        .version-type {
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 500;
        }
        
        .version-type.stable {
            background: #d1fae5;
            color: #059669;
        }
        
        .version-type.legacy {
            background: #f3f4f6;
            color: #6b7280;
        }
        
        .version-meta {
            display: flex;
            gap: 20px;
            color: var(--text-secondary);
            font-size: 14px;
            margin-bottom: 15px;
        }
        
        .version-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .version-meta img {
            width: 16px;
            height: 16px;
            opacity: 0.6;
        }
        
        .changelog {
            background: var(--bg-secondary);
            border-radius: 14px;
            padding: 16px 20px;
            margin-top: 12px;
        }
        
        .changelog ul {
            list-style: none;
        }
        
        .changelog li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 6px 0;
            color: var(--text-secondary);
            font-size: 14px;
        }
        
        .changelog li img {
            width: 18px;
            height: 18px;
            margin-top: 2px;
        }
        
        .version-download {
            min-width: 140px;
            text-align: right;
        }
        
        .version-download .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--primary-color);
            color: white;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
        }
        
        .version-download .btn-download:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
        }
        
        .version-download .btn-download img {
            width: 20px;
            height: 20px;
            filter: brightness(0) invert(1);
        }
        
        .download-count {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 8px;
        }
        
        /* 提示卡片 */
        .info-card {
            background: #e0f2fe;
            border-radius: 20px;
            padding: 24px 30px;
            display: flex;
            align-items: center;
            gap: 20px;
            color: #0369a1;
        }
        
        .info-card img {
            width: 40px;
            height: 40px;
        }
        
        .info-card p {
            font-size: 15px;
            line-height: 1.6;
        }
        
        .info-card a {
            color: #0369a1;
            font-weight: 600;
            text-decoration: underline;
        }
        
        /* 响应式 */
        @media (max-width: 768px) {
            .page-header h1 { font-size: 32px; }
            .latest-version { padding: 30px 20px; }
            .latest-info h2 { font-size: 24px; }
            .download-btn { padding: 14px 28px; font-size: 18px; }
            .version-item { flex-direction: column; }
            .version-download { text-align: left; width: 100%; }
            .info-card { flex-direction: column; text-align: center; }
        }