/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: #ff6b81;
    transition: all 0.3s ease;
}

a:hover {
    color: #ff4757;
}

ul {
    list-style: none;
}

/* 渐变背景替代图片 */
.gradient-1 { background: linear-gradient(135deg, #ff6b81, #ff4757); }
.gradient-2 { background: linear-gradient(135deg, #70a1ff, #1e90ff); }
.gradient-3 { background: linear-gradient(135deg, #7bed9f, #2ed573); }
.gradient-4 { background: linear-gradient(135deg, #eccc68, #ffa502); }
.gradient-5 { background: linear-gradient(135deg, #a4b0be, #747d8c); }
.gradient-6 { background: linear-gradient(135deg, #ff6b81, #ff4757); }
.gradient-7 { background: linear-gradient(135deg, #70a1ff, #1e90ff); }
.gradient-8 { background: linear-gradient(135deg, #7bed9f, #2ed573); }
.gradient-9 { background: linear-gradient(135deg, #eccc68, #ffa502); }
.gradient-10 { background: linear-gradient(135deg, #a4b0be, #747d8c); }
.gradient-11 { background: linear-gradient(135deg, #ff6b81, #ff4757); }
.gradient-12 { background: linear-gradient(135deg, #70a1ff, #1e90ff); }
.gradient-13 { background: linear-gradient(135deg, #7bed9f, #2ed573); }
.gradient-14 { background: linear-gradient(135deg, #eccc68, #ffa502); }
.gradient-15 { background: linear-gradient(135deg, #a4b0be, #747d8c); }
.gradient-16 { background: linear-gradient(135deg, #ff6b81, #ff4757); }
.gradient-17 { background: linear-gradient(135deg, #70a1ff, #1e90ff); }
.gradient-18 { background: linear-gradient(135deg, #7bed9f, #2ed573); }
.gradient-19 { background: linear-gradient(135deg, #eccc68, #ffa502); }
.gradient-20 { background: linear-gradient(135deg, #a4b0be, #747d8c); }
.gradient-21 { background: linear-gradient(135deg, #ff6b81, #ff4757); }
.gradient-22 { background: linear-gradient(135deg, #70a1ff, #1e90ff); }
.gradient-23 { background: linear-gradient(135deg, #7bed9f, #2ed573); }
.gradient-24 { background: linear-gradient(135deg, #eccc68, #ffa502); }
.gradient-25 { background: linear-gradient(135deg, #a4b0be, #747d8c); }
.gradient-26 { background: linear-gradient(135deg, #ff6b81, #ff4757); }
.gradient-27 { background: linear-gradient(135deg, #70a1ff, #1e90ff); }
.gradient-28 { background: linear-gradient(135deg, #7bed9f, #2ed573); }
.gradient-29 { background: linear-gradient(135deg, #eccc68, #ffa502); }

/* 头部样式 */
.header {
    background-color: #ff6b81;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo h1 {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    margin: 0;
}

.main-nav ul {
    display: flex;
    gap: 20px;
}

.main-nav a {
    color: #fff;
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.main-nav a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* 横幅样式 */
.banner {
    background-color: #ff4757;
    color: #fff;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.banner-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.banner h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.banner p {
    font-size: 18px;
    margin-bottom: 30px;
}

.banner-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 129, 0.8), rgba(255, 71, 87, 0.8));
    z-index: 1;
}

.search-box {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
}

.search-box input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 4px 0 0 4px;
    font-size: 16px;
}

.search-box button {
    background-color: #ff6b81;
    color: #fff;
    border: none;
    padding: 0 20px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-box button:hover {
    background-color: #ff4757;
}

/* 内容区域样式 */
.section {
    padding: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 30px;
    color: #ff4757;
    margin-bottom: 10px;
}

.section-header p {
    color: #747d8c;
    font-size: 16px;
}

/* 卡片样式 */
.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.card-img {
    height: 180px;
    width: 100%;
}

.card-content {
    padding: 15px;
}

.card-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: #2f3542;
}

.card-content p {
    color: #747d8c;
    font-size: 14px;
    margin-bottom: 10px;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.card-tags span {
    background-color: #f1f2f6;
    color: #ff6b81;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
}

/* 分类浏览样式 */
.category-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.category-item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.category-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.category-img {
    height: 120px;
    width: 100%;
}

.category-item h3 {
    font-size: 18px;
    margin: 15px 0 5px;
    color: #2f3542;
}

.category-item p {
    color: #747d8c;
    font-size: 14px;
    margin-bottom: 15px;
}

/* 排行榜样式 */
.ranking-container {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.ranking-tabs {
    display: flex;
    background-color: #f1f2f6;
}

.tab {
    padding: 15px 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab.active {
    background-color: #ff6b81;
    color: #fff;
}

.ranking-list {
    padding: 15px;
}

.ranking-item {
    display: flex;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid #f1f2f6;
}

.ranking-item:last-child {
    border-bottom: none;
}

.ranking-num {
    font-size: 24px;
    font-weight: 700;
    color: #ff6b81;
    width: 40px;
    text-align: center;
}

.ranking-img {
    width: 80px;
    height: 80px;
    border-radius: 4px;
    margin: 0 15px;
}

.ranking-info {
    flex: 1;
}

.ranking-info h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #2f3542;
}

.ranking-info p {
    color: #747d8c;
    font-size: 14px;
    margin-bottom: 5px;
}

.ranking-tags {
    display: flex;
    gap: 5px;
}

.ranking-tags span {
    background-color: #f1f2f6;
    color: #ff6b81;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
}

/* 社区互动样式 */
.community-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.community-box {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.community-img {
    height: 150px;
    width: 100%;
}

.community-box h3 {
    font-size: 20px;
    padding: 15px;
    color: #2f3542;
    border-bottom: 1px solid #f1f2f6;
}

.community-list {
    padding: 15px;
}

.community-list li {
    margin-bottom: 10px;
}

.community-list li:last-child {
    margin-bottom: 0;
}

.community-list a {
    display: block;
    padding: 8px 0;
    color: #2f3542;
    transition: all 0.3s ease;
}

.community-list a:hover {
    color: #ff6b81;
}

/* 关于我们样式 */
.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: center;
}

.about-img {
    flex: 1;
    min-width: 300px;
    height: 300px;
    border-radius: 8px;
}

.about-text {
    flex: 2;
    min-width: 300px;
}

.about-text h3 {
    font-size: 22px;
    color: #2f3542;
    margin-bottom: 15px;
    margin-top: 20px;
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-text p {
    color: #747d8c;
    margin-bottom: 15px;
}

/* 文章样式 */
.article-section {
    background-color: #f8f9fa;
}

.article-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.article-item {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.article-item h3 {
    font-size: 20px;
    color: #2f3542;
    margin-bottom: 15px;
}

.article-item p {
    color: #747d8c;
    font-size: 15px;
    line-height: 1.7;
}

/* 页脚样式 */
.footer {
    background-color: #2f3542;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

.footer-logo p {
    color: #a4b0be;
}

.footer-links {
    flex: 3;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links-column {
    flex: 1;
    min-width: 150px;
}

.footer-links-column h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #ff6b81;
}

.footer-links-column ul li {
    margin-bottom: 8px;
}

.footer-links-column a {
    color: #a4b0be;
    transition: all 0.3s ease;
}

.footer-links-column a:hover {
    color: #ff6b81;
}

.footer-bottom {
    border-top: 1px solid #3d4452;
    padding-top: 30px;
    text-align: center;
}

.footer-info {
    margin-bottom: 15px;
}

.footer-info p {
    color: #a4b0be;
    margin-bottom: 5px;
}

.footer-statement {
    color: #747d8c;
    font-size: 14px;
}

.footer-statement p {
    margin-bottom: 5px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
    }
    
    .logo {
        margin-bottom: 15px;
    }
    
    .main-nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .banner {
        padding: 60px 0;
    }
    
    .banner h2 {
        font-size: 28px;
    }
    
    .banner p {
        font-size: 16px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-header h2 {
        font-size: 26px;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .about-img {
        width: 100%;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-links {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .banner h2 {
        font-size: 24px;
    }
    
    .banner p {
        font-size: 14px;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-box input {
        border-radius: 4px;
        margin-bottom: 10px;
    }
    
    .search-box button {
        border-radius: 4px;
        width: 100%;
        padding: 12px;
    }
    
    .card-container,
    .category-container,
    .community-container,
    .article-container {
        grid-template-columns: 1fr;
    }
}