/* S1主题 - 重构版样式 (无侧边栏) */
        :root {
            --s1-primary: #667eea;
            --s1-secondary: #764ba2;
            --s1-pink: #f093fb;
            --s1-gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --s1-gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --s1-gradient-cool: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
            --s1-gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
            --s1-gradient-danger: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
            --s1-text: #1e293b;
            --s1-text-muted: #64748b;
            --s1-bg: #f0f4ff;
            --s1-card-bg: #ffffff;
            --s1-border: rgba(102, 126, 234, 0.1);
            --s1-radius: 16px;
            --s1-radius-lg: 24px;
            --s1-shadow: 0 8px 32px rgba(102, 126, 234, 0.15);
            --s1-shadow-hover: 0 16px 48px rgba(102, 126, 234, 0.25);
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: var(--s1-bg);
            color: var(--s1-text);
            min-height: 100vh;
        }
        
        /* 顶部导航栏 */
        .s1-topnav {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            box-shadow: var(--s1-shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0 32px;
        }
        
        .s1-topnav-inner {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        
        .s1-nav-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .s1-nav-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 20px;
            color: var(--s1-text-muted);
            text-decoration: none;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 500;
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        
        .s1-nav-item:hover {
            background: var(--s1-bg);
            color: var(--s1-primary);
        }
        
        .s1-nav-item.active {
            background: var(--s1-gradient-primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
        }
        
        .s1-nav-item i {
            font-size: 20px;
        }
        
        .s1-nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .s1-user-dropdown {
            position: relative;
        }
        
        .s1-user-btn {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 16px 8px 8px;
            background: var(--s1-bg);
            border-radius: var(--s1-radius);
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .s1-user-btn:hover {
            background: var(--s1-gradient-cool);
        }
        
        .s1-user-btn .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--s1-gradient-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 14px;
        }
        
        .s1-user-btn span {
            font-size: 14px;
            font-weight: 500;
            color: var(--s1-text);
        }
        
        .s1-dropdown-menu {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: #fff;
            border-radius: var(--s1-radius);
            box-shadow: var(--s1-shadow-hover);
            min-width: 200px;
            padding: 8px;
            display: none;
            z-index: 1000;
        }
        
        .s1-dropdown-menu.show {
            display: block;
        }
        
        .s1-dropdown-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            color: var(--s1-text);
            text-decoration: none;
            border-radius: 10px;
            transition: all 0.2s ease;
        }
        
        .s1-dropdown-item:hover {
            background: var(--s1-bg);
            color: var(--s1-primary);
        }
        
        .s1-dropdown-item i {
            font-size: 18px;
            color: var(--s1-text-muted);
        }
        
        .s1-dropdown-divider {
            height: 1px;
            background: var(--s1-border);
            margin: 8px 0;
        }
        
        /* Hero区域背景 */
        .s1-hero {
            background: linear-gradient(135deg, #e8f0fe 0%, #f5f0ff 50%, #fff0f5 100%);
            padding: 20px 32px 80px;
            position: relative;
            overflow: hidden;
        }
        
        .s1-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 60%;
            height: 100%;
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 800 400'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:%23667eea;stop-opacity:0.1'/%3E%3Cstop offset='100%25' style='stop-color:%23764ba2;stop-opacity:0.05'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect fill='url(%23g)' width='800' height='400'/%3E%3Cg fill='none' stroke='%23667eea' stroke-opacity='0.1' stroke-width='1'%3E%3Cpath d='M0 100 Q200 50 400 100 T800 100'/%3E%3Cpath d='M0 200 Q200 150 400 200 T800 200'/%3E%3Cpath d='M0 300 Q200 250 400 300 T800 300'/%3E%3C/g%3E%3C/svg%3E") no-repeat center right;
            background-size: cover;
            opacity: 0.6;
            pointer-events: none;
        }
        
        .s1-hero-inner {
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        
        /* 主内容区 */
        .s1-main {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px 32px;
        }
        
        /* 公告栏 */
        .s1-announcement {
            background: var(--s1-card-bg);
            border-radius: var(--s1-radius-lg);
            padding: 24px 28px;
            margin-bottom: 24px;
            box-shadow: var(--s1-shadow);
            display: flex;
            align-items: center;
            gap: 20px;
            position: relative;
            overflow: hidden;
        }
        
        .s1-announcement::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 5px;
            background: var(--s1-gradient-cool);
        }
        
        .s1-announcement-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--s1-radius);
            background: var(--s1-gradient-cool);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .s1-announcement-icon i {
            font-size: 28px;
            color: #fff;
        }
        
        .s1-announcement-title {
            font-weight: 600;
            font-size: 16px;
            margin-bottom: 4px;
        }
        
        .s1-announcement-text {
            color: var(--s1-text-muted);
            font-size: 14px;
        }
        
        /* 统计卡片 */
        .s1-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 32px;
            margin-top: -40px;
            position: relative;
            z-index: 10;
        }
        
        .s1-stat-card {
            border-radius: var(--s1-radius-lg);
            padding: 28px;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--s1-shadow);
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all 0.3s ease;
        }
        
        .s1-stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--s1-shadow-hover);
        }
        
        .s1-stat-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 100%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
        }
        
        .s1-stat-primary { background: var(--s1-gradient-primary); }
        .s1-stat-pink { background: var(--s1-gradient-cool); }
        .s1-stat-success { background: var(--s1-gradient-success); }
        .s1-stat-danger { background: var(--s1-gradient-danger); }
        
        .s1-stat-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--s1-radius);
            background: rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .s1-stat-icon i {
            font-size: 32px;
        }
        
        .s1-stat-value {
            font-size: 36px;
            font-weight: 700;
            line-height: 1;
        }
        
        .s1-stat-label {
            font-size: 14px;
            opacity: 0.9;
            margin-top: 4px;
        }
        
        /* API卡片网格 */
        .s1-section-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .s1-section-title i {
            color: var(--s1-primary);
        }
        
        .s1-api-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
            gap: 24px;
        }
        
        .s1-api-card {
            background: var(--s1-card-bg);
            border-radius: var(--s1-radius-lg);
            padding: 28px;
            box-shadow: var(--s1-shadow);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .s1-api-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--s1-shadow-hover);
        }
        
        .s1-api-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--s1-gradient-primary);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .s1-api-card:hover::before {
            opacity: 1;
        }
        
        .s1-api-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 12px;
        }
        
        .s1-api-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--s1-text);
            margin: 0;
        }
        
        /* 状态徽章 */
        .s1-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
        }
        
        .s1-badge-success {
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(56, 239, 125, 0.1));
            color: #10b981;
        }
        
        .s1-badge-danger {
            background: linear-gradient(135deg, rgba(245, 87, 108, 0.1), rgba(240, 147, 251, 0.1));
            color: #f5576c;
        }
        
        .s1-badge-warning {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.1), rgba(245, 158, 11, 0.1));
            color: #f59e0b;
        }
        
        .s1-badge-secondary {
            background: rgba(100, 116, 139, 0.1);
            color: #64748b;
        }
        
        /* 标签 */
        .s1-api-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }
        
        .s1-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 12px;
        }
        
        .s1-tag-success {
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(56, 239, 125, 0.1));
            color: #10b981;
        }
        
        .s1-tag-warning {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.1), rgba(245, 158, 11, 0.1));
            color: #f59e0b;
        }
        
        .s1-tag-purple {
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
            color: var(--s1-primary);
        }
        
        .s1-tag-light {
            background: rgba(100, 116, 139, 0.08);
            color: var(--s1-text-muted);
        }
        
        .s1-api-desc {
            color: var(--s1-text-muted);
            font-size: 14px;
            line-height: 1.6;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .s1-api-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 16px;
            border-top: 1px solid var(--s1-border);
        }
        
        .s1-api-stats {
            display: flex;
            gap: 16px;
            font-size: 13px;
        }
        
        .s1-api-stats span {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--s1-text-muted);
        }
        
        .s1-text-danger { color: #f5576c; }
        .s1-text-warning { color: #f59e0b; }
        
        .s1-flame {
            animation: flame 0.5s ease-in-out infinite alternate;
        }
        
        @keyframes flame {
            from { transform: scale(1); }
            to { transform: scale(1.2); }
        }
        
        /* 按钮 */
        .s1-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--s1-radius);
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        
        .s1-btn-primary {
            background: var(--s1-gradient-primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
        }
        
        .s1-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
            color: #fff;
        }
        
        .s1-btn-sm {
            padding: 8px 14px;
            font-size: 13px;
        }
        
        /* 空状态 */
        .s1-empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 80px 20px;
            color: var(--s1-text-muted);
        }
        
        .s1-empty-state i {
            font-size: 80px;
            opacity: 0.3;
            margin-bottom: 20px;
            display: block;
        }
        
        /* 页脚 */
        .s1-footer {
            text-align: center;
            padding: 32px;
            color: var(--s1-text-muted);
            font-size: 14px;
        }
        
        .s1-footer a {
            color: var(--s1-primary);
            text-decoration: none;
        }
        
        /* 动画 */
        .s1-fade-in {
            animation: fadeIn 0.5s ease forwards;
        }
        
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* 移动端菜单按钮 */
        .s1-mobile-menu-btn {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--s1-radius);
            background: var(--s1-bg);
            border: none;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--s1-text);
        }
        
        /* 移动端导航菜单 */
        .s1-mobile-nav {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            background: #fff;
            padding: 16px;
            box-shadow: var(--s1-shadow);
            z-index: 999;
            flex-direction: column;
            gap: 8px;
        }
        
        .s1-mobile-nav.show {
            display: flex;
        }
        
        .s1-mobile-nav .s1-nav-item {
            justify-content: flex-start;
            padding: 14px 20px;
        }
        
        /* 响应式 */
        @media (max-width: 1200px) {
            .s1-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 992px) {
            .s1-nav-left {
                display: none;
            }
            
            .s1-mobile-menu-btn {
                display: flex;
            }
            
            .s1-topnav {
                padding: 0 16px;
            }
            
            .s1-hero {
                padding: 20px 16px 40px;
            }
            
            .s1-main {
                padding: 0 16px 32px;
            }
        }
        
        @media (max-width: 768px) {
            .s1-stats-grid {
                grid-template-columns: 1fr;
                margin-top: -40px;
            }
            
            .s1-api-grid {
                grid-template-columns: 1fr;
            }
            
            .s1-user-btn span {
                display: none;
            }
            
            .s1-announcement {
                flex-direction: column;
                text-align: center;
            }
        }
        
        /* 搜索框 */
        .s1-search-box {
            display: flex;
            align-items: center;
            background: var(--s1-bg);
            border-radius: var(--s1-radius);
            padding: 0 16px;
            border: 2px solid transparent;
            transition: all 0.3s ease;
            margin-left: 16px;
        }
        
        .s1-search-box:focus-within {
            border-color: var(--s1-primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
        }
        
        .s1-search-box i {
            color: var(--s1-text-muted);
            font-size: 18px;
        }
        
        .s1-search-box input {
            width: 200px;
            padding: 10px 12px;
            border: none;
            background: transparent;
            font-size: 14px;
            outline: none;
        }
        
        @media (max-width: 1100px) {
            .s1-search-box {
                display: none;
            }
        }