* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --secondary-color: #2ecc71;
    --secondary-dark: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #1abc9c;
    --light-color: #f8f9fa;
    --dark-color: #2c3e50;
    --gray-color: #7f8c8d;
    --border-color: #e0e0e0;
    --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

body {
    background-color: #f5f7fa;
    color: var(--dark-color);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo span {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 600;
    padding: 0.5rem 0;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}
.notification-btn {
    position: relative;
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--gray-color);
    cursor: pointer;
}

.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--accent-color);
    color: white;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.user-info a{
    display: inline-block;
    padding: 0 8px;
}
.user-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 5px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 筛选和搜索区域 */
.filters-section {
    background-color: white;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2rem 0;
    box-shadow: var(--card-shadow);
}

.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

.filter-select, .filter-input {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
}

/* 分类展示栏 */
.categories-display {
    margin-top: 1.5rem;
}

.categories-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.categories-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.category-tag {
    color: darkcyan;
    padding: 0.3rem 1.2rem;
    background-color: #e8f4ff;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid transparent;
}

.category-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.category-tag.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.category-count {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 0.85rem;
}

/* 网站卡片网格 */
.websites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.website-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.website-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.card-header {
    padding: 1.5rem 1.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.website-favicon {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.website-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.website-url {
    color: var(--gray-color);
    font-size: 0.9rem;
    word-break: break-all;
}

.card-body {
    padding: 1.5rem;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.8rem;
    border-radius: 8px;
    background-color: #f8f9fa;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--gray-color);
}

.metric-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}
.metric-icon img{
    max-width: 100%;
    max-height: 100%;
}
.metric-icon.baidu {
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
}

.metric-icon.index {
    background-color: rgba(46, 204, 113, 0.1);
    color: var(--secondary-color);
}

.metric-icon.outlink {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--danger-color);
}

.metric-icon.inlink {
    background-color: rgba(243, 156, 18, 0.1);
    color: var(--warning-color);
}

.website-description {
    color: var(--gray-color);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    background-color: #f8f9fa;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.website-category {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background-color: #e8f4fc;
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.website-price {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background-color: #ff491d;
    color: #fae875;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.exchange-btn {
    padding: 0.5rem 1.2rem;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.exchange-btn:hover {
    background-color: var(--secondary-dark);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
}

.page-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    background-color: white;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

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

/* 统计概览 */
.stats-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0 3rem;
}

.stat-card {
    background-color: white;
    border-radius: 10px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--card-shadow);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
}

.stat-content h3 {
    font-size: 1.8rem;
    margin-bottom: 0.2rem;
}

.stat-content p {
    color: var(--gray-color);
    font-size: 0.9rem;
}
/*login*/
.login-container {
    width: 500px;
    margin: 25px auto;
    padding: 20px;
    border-radius: 8px;
    background: #fff;
}

.logo h1 {
    color: #3498db;
    font-size: 28px;
    margin: 10px 0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.form-group input:focus {
    border-color: #3498db;
    outline: none;
}

.submit-btn {
    width: 100%;
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-btn:hover {
    background-color: #2980b9;
}

.submit-btn:disabled {
    background: #6c757d;
    cursor: not-allowed;
}

.links {
    margin-top: 20px;
    text-align: center;
}

.links a {
    color: #3498db;
    text-decoration: none;
    margin: 0 10px;
}

.error-message {
    color: #e74c3c;
    margin-top: 10px;
    text-align: center;
    display: none;
}
/* 文章列表 */
.breadcrumb{
    margin: 20px 0;
    padding: 10px;
    border: 1px solid #eaeaea;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    border-radius: 8px;
    background: white;
}
.article-list {
    display: grid;
    gap: 30px;
    margin-bottom: 50px;
}

.article-item {
    background: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.article-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    color: #777;
    font-size: 14px;
}

.article-title {
    font-size: 24px;
    margin-bottom: 15px;
}

.article-excerpt {
    color: #555;
    margin-bottom: 20px;
}

.read-more {
    display: inline-block;
    padding: 8px 15px;
    background: var(--primary-color);
    color: white;
    border-radius: 4px;
    font-size: 14px;
}
.article{
    font-size: 16px;
    line-height: 1.75em;
    text-align: justify;
}
.article p,.article div,.article ul{
    display: block;
    margin: 20px 0;
}
.article h2{
    color: #3498db;
    font-size: 22px;
    line-height: 22px;
    padding: 3px 10px;
    position: relative;
}
.article h2:before{
    content: '';
    position: absolute;
    left: 0;
    width: 4px;
    height: 20px;
    top: 4px;
    background: #3498db;
    border-radius: 2px;
}
.article h3,.article h4{
    color: #3498db;
    font-size: 18px;
    line-height: 18px;
    padding: 3px 10px;
    position: relative;
}
.article h3:before,.article h4:before{
    content: '';
    position: absolute;
    left: 0;
    width: 4px;
    height: 18px;
    top: 4px;
    background: #3498db;
    border-radius: 2px;
}
.article img{
    max-width: 100%;
    height: auto!important;
}
/* 页脚 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .websites-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-overview {
        grid-template-columns: 1fr;
    }
    
    .categories-container {
        justify-content: center;
    }
}