/**
 * 模板一 - 简洁现代化风格（优化版）
 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 亮色模式变量 */
:root {
    --bg-color: #f5f7fa;
    --card-bg: #ffffff;
    --text-color: #333;
    --text-light: #666;
    --text-muted: #999;
    --border-color: #e8e8e8;
    --primary-color: #1ab394;
    --primary-hover: #0e9a7a;
    --header-bg: #2f4050;
    --success-color: #52c41a;
    --danger-color: #f5222d;
    --warning-color: #faad14;
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

/* 暗色模式 */
body.dark {
    --bg-color: #1a1a2e;
    --card-bg: #16213e;
    --text-color: #eee;
    --text-light: #aaa;
    --text-muted: #777;
    --border-color: #2a2a4a;
    --header-bg: #0f0f1a;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 头部 ========== */
.header {
    background: var(--header-bg);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 12px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.logo a {
    color: white;
    text-decoration: none;
    font-size: 24px;
    font-weight: bold;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* 主题切换开关 */
.theme-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.theme-label {
    color: white;
    font-size: 14px;
}

.template-switch-btn {
    background: none;
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
}

.template-switch-btn:hover {
    background: rgba(255,255,255,0.1);
}

.nav-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    margin-left: 20px;
    font-size: 14px;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: white;
}

/* ========== 搜索区域 ========== */
.search-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 50px 0;
    text-align: center;
}

.search-title h2 {
    color: white;
    font-size: 32px;
    margin-bottom: 10px;
}

.search-title p {
    color: rgba(255,255,255,0.8);
    margin-bottom: 30px;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    background: white;
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.search-box input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    font-size: 16px;
    outline: none;
}

.search-box button {
    padding: 0 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.2s;
}

.search-box button:hover {
    background: var(--primary-hover);
}

.engine-list {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.engine-list a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 20px;
    transition: all 0.2s;
}

.engine-list a:hover,
.engine-list a.active {
    background: rgba(255,255,255,0.2);
    color: white;
}

/* ========== 主要内容 ========== */
.main {
    padding: 30px 0;
}

/* 分类区块 */
.category-block {
    margin-bottom: 40px;
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

.category-header h3 {
    font-size: 20px;
    font-weight: 600;
    padding-left: 12px;
    position: relative;
}

.category-header h3:before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 2px;
}

.more-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 13px;
}

/* 精选推荐网格 */
.recommend-section {
    margin-bottom: 40px;
}

.recommend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 15px;
}

.recommend-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 15px 10px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.2s;
    border: 1px solid var(--border-color);
}

.recommend-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.recommend-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 10px;
}

.recommend-icon img {
    width: 100%;
    height: 100%;
    border-radius: 16px;
    object-fit: cover;
}

.recommend-icon .no-img {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
}

.recommend-info h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 分类网站网格 */
.sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

.site-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 12px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s;
    border: 1px solid var(--border-color);
}

.site-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.site-icon {
    flex-shrink: 0;
}

.site-icon img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
}

.site-icon .no-img {
    width: 40px;
    height: 40px;
    background: var(--bg-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-light);
}

.site-info {
    flex: 1;
    min-width: 0;
}

.site-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.site-info p {
    font-size: 11px;
    color: var(--text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 友情链接 */
.friendlink-section {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.friendlink-list {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 15px;
}

.friendlink-list a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
}

.friendlink-list a:hover {
    color: var(--primary-color);
}

/* 底部 */
.footer {
    background: var(--header-bg);
    color: rgba(255,255,255,0.7);
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
}

.footer p {
    font-size: 13px;
}

/* 列表页样式 */
.breadcrumb {
    margin-bottom: 20px;
    padding: 10px 0;
    color: var(--text-light);
    font-size: 13px;
}

.breadcrumb a {
    color: var(--text-light);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.sub-cat-link {
    padding: 5px 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    text-decoration: none;
    color: var(--text-color);
    font-size: 13px;
}

.sub-cat-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.pagination a, .pagination span {
    display: inline-block;
    padding: 8px 14px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 13px;
}

.pagination a:hover, .pagination a.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* 表单通用样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.required {
    color: var(--danger-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--card-bg);
    color: var(--text-color);
    font-size: 14px;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 179, 148, 0.1);
}

.form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 5px;
}

.captcha-row {
    display: flex;
    gap: 10px;
}

.captcha-row input {
    flex: 1;
}

.captcha-row img {
    height: 42px;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.submit-btn, .cancel-btn {
    flex: 1;
    padding: 12px;
    text-align: center;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.submit-btn {
    background: var(--primary-color);
    color: white;
    border: none;
}

.submit-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.cancel-btn {
    background: var(--card-bg);
    color: var(--text-light);
    border: 1px solid var(--border-color);
}

.cancel-btn:hover {
    background: var(--bg-color);
}

/* 提示框样式 */
.tip-box {
    background: rgba(250, 173, 20, 0.1);
    border: 1px solid var(--warning-color);
    border-radius: var(--radius-md);
    padding: 15px;
    margin: 20px 0;
}

.tip-box h4 {
    color: var(--warning-color);
    margin-bottom: 10px;
}

.tip-box code {
    display: inline-block;
    background: var(--card-bg);
    padding: 5px 10px;
    border-radius: 5px;
    font-family: monospace;
    margin: 8px 0;
}

/* 警告框样式 */
.alert {
    display: flex;
    gap: 15px;
    padding: 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.alert-success {
    background: rgba(82, 196, 26, 0.1);
    border: 1px solid var(--success-color);
}

.alert-error {
    background: rgba(245, 34, 45, 0.1);
    border: 1px solid var(--danger-color);
}

.alert-icon {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.alert-success .alert-icon {
    background: var(--success-color);
}

.alert-error .alert-icon {
    background: var(--danger-color);
}

.alert-content {
    flex: 1;
}

.alert-content h3 {
    margin-bottom: 8px;
    font-size: 18px;
}

/* 页面头部 */
.page-header {
    text-align: center;
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 28px;
    color: var(--text-color);
}

.page-header p {
    color: var(--text-light);
}

/* 响应式 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .recommend-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .recommend-card {
        padding: 12px 8px;
    }
    
    .recommend-icon {
        width: 60px;
        height: 60px;
    }
    
    .sites-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .site-card {
        padding: 10px;
        flex-direction: column;
        text-align: center;
    }
    
    .site-icon {
        margin-bottom: 8px;
    }
    
    .site-icon img,
    .site-icon .no-img {
        width: 50px;
        height: 50px;
    }
    
    .site-info h4 {
        font-size: 13px;
        white-space: normal;
        word-break: break-word;
    }
    
    .site-info p {
        display: none;
    }
    
    .header .container {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-links a {
        margin: 0 10px;
    }
    
    .search-title h2 {
        font-size: 24px;
    }
    
    .search-box input {
        padding: 12px 15px;
        font-size: 14px;
    }
    
    .search-box button {
        padding: 0 20px;
        font-size: 14px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .alert {
        flex-direction: column;
        text-align: center;
    }
    
    .alert-icon {
        margin: 0 auto;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .sites-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }
}

/* ========== 实用工具 - 文字网格样式 ========== */
.tools-section {
    margin-bottom: 40px;
}

.tools-text-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 12px;
    margin-top: 5px;
}

.tool-text-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 8px;
    text-align: center;
    text-decoration: none;
    font-size: 13px;
    color: var(--text-color);
    transition: all 0.2s;
    display: block;
}

.tool-text-item:hover {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* 响应式 */
@media (max-width: 768px) {
    .tools-text-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .tool-text-item {
        padding: 8px 6px;
        font-size: 12px;
    }
}