/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --accent-color: #4cc9f0;
    --text-color: #333;
    --text-light: #666;
    --background-color: #f8f9fa;
    --card-background: #fff;
    --border-color: #e9ecef;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --error-color: #f44336;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    background-image: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* 头部样式 */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 5px 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    padding: 15px 0;
    box-shadow: var(--shadow-md);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.logo-image {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    transition: var(--transition);
}

.logo-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.header-logo:hover .logo-image {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.header-logo:hover .logo-text {
    transform: scale(1.05);
    color: var(--secondary-color);
}

.nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link.current {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-link.current::after,
.nav-link:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

/* 搜索样式 */
.search-form {
    display: flex;
    margin-left: 30px;
    position: relative;
    transition: var(--transition);
}

.search-input {
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 25px 0 0 25px;
    font-size: 14px;
    outline: none;
    width: 200px;
    transition: var(--transition);
    background-color: rgba(255, 255, 255, 0.9);
}

.search-input:focus {
    width: 250px;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.25);
}

.search-button {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 0 25px 25px 0;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.search-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* 面包屑导航样式 */
.breadcrumb {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(5px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.breadcrumb .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
}

.breadcrumb ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    font-size: 14px;
    font-weight: 500;
}

.breadcrumb li:not(:last-child)::after {
    content: "→";
    margin: 0 15px;
    color: var(--text-light);
    font-weight: 300;
    transition: var(--transition);
}

.breadcrumb li:not(:last-child):hover::after {
    color: var(--primary-color);
    transform: translateX(3px);
}

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

.breadcrumb a:hover {
    color: var(--primary-color);
    transform: translateY(-1px);
}

/* 主内容容器 */
.main-container {
    max-width: 1200px;
    margin: 24px auto;
    padding: 0 20px;
    /* Grid 布局：轮播图独占一行，下方左侧文章容器与右侧侧边栏顶端对齐 */
    display: grid;
    grid-template-columns: 3fr 1fr;
    grid-template-areas:
        "carousel carousel"
        "content  sidebar";
    gap: 24px 32px;
    animation: fadeIn 0.5s ease;
}

/* 无侧边栏页面（智用、商品）：主内容占满整行 */
.main-container.no-sidebar {
    display: block;
}
.main-container.no-sidebar .left-content {
    min-width: 0;
    max-width: 100%;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 左侧内容区域 */
.left-content {
    grid-area: content;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 轮播图样式（基于 Swiper） */
.carousel {
    grid-area: carousel;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

/* Swiper 容器与滑块 */
.carousel.swiper {
    width: 100%;
    max-width: 100%;
    --swiper-theme-color: var(--primary-color);
    --swiper-navigation-color: #fff;
    --swiper-pagination-color: #fff;
}

/* 降级保护：Swiper 未初始化（JS 失败/被墙）时，只显示首张 slide，
   避免多个 100% 宽的 slide 在 .swiper-wrapper 内横向排开把页面撑宽。
   Swiper 初始化成功会自动加上 .swiper-initialized 类，此时本条失效、由 Swiper 接管布局。 */
.carousel.swiper:not(.swiper-initialized) .swiper-slide:not(:first-child),
.carousel.swiper:not(.swiper-initialized) .swiper-pagination,
.carousel.swiper:not(.swiper-initialized) .swiper-button-prev,
.carousel.swiper:not(.swiper-initialized) .swiper-button-next {
    display: none;
}

/* 双保险：即便 Swiper 异常写出超大 inline width（如 2.68e7px），
   也限制在容器内，配合 .left-content 的 min-width:0，巨宽不会外溢撑爆整页 */
.carousel .swiper-wrapper {
    max-width: 100%;
}

.carousel .swiper-slide {
    position: relative;
    overflow: hidden;
}

.carousel .slide-img {
    width: 100%;
    height: 340px;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.carousel .swiper-slide:hover .slide-img {
    transform: scale(1.05);
}

/* 标题说明（常驻显示，banner 风格） */
.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0.4));
    color: #fff;
    padding: 40px 30px;
    z-index: 2;
}

.slide-caption h3 {
    margin-bottom: 15px;
    font-size: 24px;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.slide-caption p {
    font-size: 16px;
    line-height: 1.6;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
    max-width: 80%;
}

/* 左右切换按钮（沿用原圆形玻璃拟态风格，hover 时才显现） */
.carousel .swiper-button-prev,
.carousel .swiper-button-next {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: #fff;
    transition: var(--transition);
    opacity: 0;
}

.carousel:hover .swiper-button-prev,
.carousel:hover .swiper-button-next {
    opacity: 1;
}

.carousel .swiper-button-prev::after,
.carousel .swiper-button-next::after {
    font-size: 22px;
    font-weight: bold;
}

.carousel .swiper-button-prev:hover,
.carousel .swiper-button-next:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* 分页小圆点 */
.carousel .swiper-pagination-bullet {
    background: #fff;
    opacity: 0.6;
}

.carousel .swiper-pagination-bullet-active {
    background: var(--primary-color);
    opacity: 1;
}

/* 文章列表样式 */
.article-container {
    background-color: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    padding: 30px;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.article-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
    position: relative;
}

.article-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

.article-header h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.article-header h2::before {
    content: '';
    width: 4px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.sort-box {
    display: flex;
    align-items: center;
    gap: 20px;
    background-color: rgba(248, 249, 250, 0.8);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.sort-label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

.sort-link {
    font-size: 14px;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    padding: 4px 12px;
    border-radius: 12px;
    font-weight: 500;
}

.sort-link:hover {
    color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.1);
}

.sort-link.active {
    color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.1);
    font-weight: 600;
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.article-item {
    background-color: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    gap: 25px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
}

.article-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.article-image {
    flex-shrink: 0;
    width: 280px;
    height: 200px;
    overflow: hidden;
    border-radius: 8px;
    position: relative;
}

.article-image img {
    width: 280px;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.article-item:hover .article-image img {
    transform: scale(1.1);
}

.article-content {
    flex: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.article-category {
    margin-bottom: 12px;
}

.article-category a {
    font-size: 12px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    padding: 4px 12px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 12px;
    transition: var(--transition);
}

.article-category a:hover {
    background-color: rgba(67, 97, 238, 0.2);
    transform: translateY(-1px);
}

.article-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 3px;
    line-height: 1.4;
    transition: var(--transition);
}

.article-item:hover .article-title {
    color: var(--primary-color);
}

.article-title a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.article-title a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.article-meta {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 20px;
    display: flex;
    gap: 20px;
    align-items: center;
}

.article-date {
    display: flex;
    align-items: center;
    gap: 5px;
}

.article-author {
    display: flex;
    align-items: center;
    gap: 5px;
}

.article-excerpt {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 3px;
    flex: 1;
    transition: var(--transition);
}

.article-item:hover .article-excerpt {
    color: var(--text-color);
}

/* 文章底部 */
.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2px;
    padding-top: 5px;
    border-top: 1px solid var(--border-color);
}

/* 标签和按钮容器 */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.article-tag {
    font-size: 12px;
    color: var(--text-light);
    text-decoration: none;
    padding: 6px 14px;
    background-color: rgba(240, 240, 240, 0.8);
    border-radius: 16px;
    transition: var(--transition);
    display: inline-block;
    height: 32px;
    line-height: 20px;
    vertical-align: middle;
    font-weight: 500;
}

.article-tag:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-1px);
}

/* 文章操作按钮 */
.article-actions {
    display: flex;
    align-items: center;
}

.btn {
    display: inline-block;
    /*padding: 10px 20px;*/
    margin-top: 5px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-size: 14px;
    transition: var(--transition);
    /*height: 40px;*/
    /*line-height: 20px;*/
    vertical-align: middle;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

/* 文章阅读量和评论数 */
.article-stats {
    display: flex;
    gap: 15px;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.article-stats span {
    display: flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.article-item:hover .article-stats span {
    color: var(--primary-color);
}

/* 侧边栏样式 */
.sidebar {
    grid-area: sidebar;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-section {
    background-color: var(--card-background);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.sidebar-section:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.sidebar-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-color);
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-section h3::before {
    content: '';
    width: 4px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.sidebar-section ul {
    padding: 0;
    list-style: none;
}

.sidebar-section li {
    /*margin-bottom: 12px;*/
    transition: var(--transition);
}

.sidebar-section li:hover {
    transform: translateX(5px);
}

.sidebar-section a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
    display: block;
    padding: 8px 12px;
    border-radius: 6px;
    font-weight: 500;
}

.sidebar-section a:hover {
    color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.1);
    padding-left: 15px;
}

/* 标签云样式 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-cloud a {
    font-size: 13px;
    color: var(--text-light);
    text-decoration: none;
    padding: 8px 16px;
    background-color: rgba(240, 240, 240, 0.8);
    border-radius: 20px;
    transition: var(--transition);
    display: inline-block;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.tag-cloud a:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

/* Tab样式 */
.tab-container {
    background-color: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.tab-container:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.tab-header {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    background-color: rgba(248, 249, 250, 0.8);
}

.tab-button {
    flex: 1;
    padding: 15px 20px;
    background: none;
    border: none;
    font-size: 14px;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    font-weight: 500;
    position: relative;
}

.tab-button:hover {
    color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.1);
}

.tab-button.active {
    color: var(--primary-color);
    font-weight: 600;
    background-color: rgba(67, 97, 238, 0.1);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
    animation: slideIn 0.3s ease;
}

.tab-content {
    padding: 25px;
}

.tab-content .sidebar-section {
    background: none;
    padding: 0;
    box-shadow: none;
    border: none;
}

.tab-content .sidebar-section h3 {
    display: none;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-pane.active {
    display: block;
}

/* 广告卡片样式 */
.ad-card {
    background-color: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: 20px;
    padding: 25px;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    overflow: hidden;
    position: relative;
}

.ad-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.ad-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-color);
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
}

.ad-card h3::before {
    content: '';
    width: 4px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.ad-content {
    text-align: center;
    transition: var(--transition);
}

.ad-card:hover .ad-content {
    transform: scale(1.05);
}

.ad-content img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 20px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.ad-card:hover .ad-content img {
    box-shadow: var(--shadow-md);
}

.ad-content p {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 20px;
    font-weight: 500;
}

.ad-link {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-size: 14px;
    transition: var(--transition);
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.ad-link:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 滚动固定效果 */
.sticky-ad {
    position: sticky;
    top: 20px;
    z-index: 100;
}

/* 作者卡片样式 */
.author-card {
    height: 340px;
    background-color: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    padding: 30px;
    text-align: center;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.author-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.author-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.author-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 20px;
    overflow: hidden;
    border: 4px solid rgba(67, 97, 238, 0.1);
    transition: var(--transition);
    position: relative;
}

.author-card:hover .author-avatar {
    border-color: var(--primary-color);
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.author-name {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-color);
    transition: var(--transition);
}

.author-card:hover .author-name {
    color: var(--primary-color);
}

.author-bio {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
    transition: var(--transition);
}

.author-card:hover .author-bio {
    color: var(--text-color);
}

/* 侧边栏随机歌词（五月天金句），显示在用户名下方 */
.author-lyric {
    margin: 12px 0 4px;
    padding: 10px 12px;
    background: rgba(67, 97, 238, 0.06);
    border-left: 3px solid var(--primary-color);
    border-radius: 6px;
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-color);
    font-style: italic;
    word-break: break-word;
}
.author-lyric .lyric-mark {
    color: var(--primary-color);
    font-weight: 700;
    font-style: normal;
    margin: 0 2px;
}

/* 作者卡片内默认头像（无头像时回退） */
.author-card .default-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #7c9cff);
    color: #fff;
    font-size: 28px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 作者社交链接 */
.author-social {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.author-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(240, 240, 240, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.author-social a:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid var(--border-color);
}

.pagination a {
    font-size: 14px;
    color: var(--text-light);
    text-decoration: none;
    padding: 10px 18px;
    border: 1px solid var(--border-color);
    border-radius: 25px;
    transition: var(--transition);
    font-weight: 500;
    background-color: rgba(255, 255, 255, 0.8);
}

.pagination a:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.1);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.pagination .current {
    font-size: 14px;
    color: #fff;
    padding: 10px 18px;
    border: 1px solid var(--primary-color);
    border-radius: 25px;
    background-color: var(--primary-color);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.pagination .disabled {
    color: var(--text-light);
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination .disabled:hover {
    color: var(--text-light);
    border-color: var(--border-color);
    background-color: rgba(255, 255, 255, 0.8);
    transform: none;
    box-shadow: none;
}

/* 页脚样式 */
.footer {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    margin-top: 60px;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
    font-size: 14px;
    color: var(--text-light);
}

.footer-links {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

.footer-links a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
    transition: var(--transition);
}

.footer-links a:hover::after {
    width: 100%;
}

.footer-bottom {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 13px;
    color: var(--text-light);
}

.footer-bottom p {
    margin: 0;
    transition: var(--transition);
}

.footer:hover .footer-bottom p {
    color: var(--text-color);
}

/* 响应式设计 */
@media screen and (max-width: 1024px) {
    .main-container {
        gap: 24px;
    }

    .article-image {
        width: 240px;
        height: 180px;
    }

    .article-content {
        padding: 20px;
    }
}

@media screen and (max-width: 992px) {
    .main-container {
        /* 移动端改为单列堆叠：轮播图 → 侧边栏 → 文章内容 */
        grid-template-columns: 1fr;
        grid-template-areas:
            "carousel"
            "sidebar"
            "content";
    }

    .sidebar {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 20px;
    }

    .sidebar-section,
    .author-card,
    .tab-container,
    .ad-card {
        flex: 1 1 calc(50% - 15px);
        min-width: 300px;
    }

    .article-image {
        width: 200px;
        height: 150px;
    }
}

@media screen and (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .nav {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .search-form {
        margin-left: 0;
        width: 100%;
    }
    
    .search-input {
        width: 100%;
    }
    
    .main-container {
        padding: 15px;
        margin: 20px auto;
    }

    .sidebar {
        flex-direction: column;
    }
    
    .sidebar-section,
    .author-card,
    .tab-container,
    .ad-card {
        flex: 1 1 100%;
    }
    
    .article-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .article-item {
        flex-direction: column;
        gap: 15px;
    }
    
    .article-image {
        width: 100%;
        height: 200px;
    }
    
    .article-content {
        padding: 20px;
    }
    
    .article-title {
        font-size: 20px;
    }
    
    .carousel .slide-img {
        height: auto;
        aspect-ratio: 16 / 9;
        min-height: 200px;
        max-height: 280px;
    }
    
    .slide-caption {
        padding: 25px 20px;
    }
    
    .slide-caption h3 {
        font-size: 18px;
    }
    
    .tab-button {
        font-size: 13px;
        padding: 12px;
    }
    
    .footer-links {
        gap: 15px;
    }
}

@media screen and (max-width: 480px) {
    .header {
        padding: 15px 0;
    }
    
    .logo {
        font-size: 24px;
    }
    
    .nav-link {
        font-size: 14px;
    }
    
    .article-item {
        padding: 0;
    }
    
    .article-image {
        height: 180px;
    }
    
    .sort-box {
        flex-wrap: wrap;
        gap: 10px;
        width: 100%;
    }
    
    .carousel .slide-img {
        height: auto;
        aspect-ratio: 16 / 9;
        min-height: 160px;
        max-height: 220px;
    }
    
    .slide-caption {
        padding: 20px 15px;
    }
    
    .slide-caption h3 {
        font-size: 16px;
        margin-bottom: 6px;
    }
    
    .slide-caption p {
        font-size: 13px;
        line-height: 1.4;
    }
    
    .slide-caption p {
        font-size: 14px;
        max-width: 100%;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .footer {
        padding: 30px 0;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-links a {
        font-size: 13px;
    }
}

/* 登录对话框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--card-background);
    margin: 10% auto;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 450px;
    position: relative;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.close {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close:hover {
    color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.1);
    transform: scale(1.1);
}

.modal-content h2 {
    margin-bottom: 30px;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color);
    text-align: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.modal-content h2::before,
.modal-content h2::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--border-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
    background-color: rgba(255, 255, 255, 0.8);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
    background-color: #fff;
}

.login-button {
    width: 100%;
    padding: 14px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    margin-top: 10px;
    box-shadow: var(--shadow-sm);
}

.login-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 弹窗内登录错误提示（AJAX 返回，不整页跳转） */
.login-error {
    display: none;
    margin-bottom: 14px;
    padding: 10px 14px;
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.4);
    border-radius: 8px;
    color: #dc3545;
    font-size: 14px;
    text-align: center;
}

.register-link {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-light);
}

.register-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 2px 0;
}

.register-link a:hover {
    color: var(--secondary-color);
}

.register-link a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
    transition: var(--transition);
}

.register-link a:hover::after {
    width: 100%;
}

.alert {
    padding: 12px 16px;
    margin-bottom: 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
}

.alert-error {
    background-color: rgba(244, 67, 54, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(244, 67, 54, 0.2);
}

/* 表单动画效果 */
.form-group input:focus + label {
    color: var(--primary-color);
    transform: translateY(-5px);
    font-size: 12px;
}

.form-group label {
    transition: var(--transition);
}

/* 下拉菜单样式 */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    display: none;
    position: absolute;
    background-color: var(--card-background);
    min-width: 180px;
    box-shadow: var(--shadow-md);
    z-index: 1000;
    right: 0;
    top: 100%;
    margin-top: 8px;
    border-radius: 8px;
    padding: 8px 0;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    animation: fadeIn 0.3s ease;
    transition: all 0.3s ease;
}

.dropdown:hover .dropdown-menu,
.user-dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-item {
    color: var(--text-color);
    padding: 12px 20px;
    text-decoration: none;
    display: block;
    text-align: left;
    transition: var(--transition);
    border-radius: 0;
    font-weight: 500;
    position: relative;
}

.dropdown-item:hover {
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary-color);
    padding-left: 25px;
}

.dropdown-item:hover::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

/* 当前页高亮（与顶部 nav-link.current 风格一致） */
.dropdown-item.current {
    color: var(--primary-color);
    font-weight: 600;
    background-color: rgba(67, 97, 238, 0.1);
    padding-left: 25px;
}

.dropdown-item.current::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* 退出登录：用 POST 表单提交，避免 GET 触发 405（Django 退出默认要求 POST） */
.logout-form {
    margin: 0;
    border: none;
    background: none;
    cursor: pointer;
}
.logout-form .logout-submit {
    all: unset;
    display: block;
    width: 100%;
    cursor: pointer;
}

/* 用户头像下拉菜单样式 */
.user-dropdown {
    position: relative;
    display: inline-block;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: 25px;
    transition: var(--transition);
    cursor: pointer;
}

.user-info:hover {
    background-color: rgba(67, 97, 238, 0.1);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50% !important;
    overflow: hidden !important;
    vertical-align: middle;
    display: inline-block;
    box-sizing: content-box;
    transition: var(--transition);
    border: 2px solid transparent;
}

.user-avatar:hover {
    border-color: var(--primary-color);
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50% !important;
    transition: var(--transition);
}

.user-avatar:hover img {
    transform: scale(1.1);
}

.user-avatar .default-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50% !important;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    transition: var(--transition);
}

.user-avatar:hover .default-avatar {
    transform: scale(1.1);
}

.user-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    transition: var(--transition);
}

.user-info:hover .user-name {
    color: var(--primary-color);
}

.user-dropdown {
    position: relative;
    display: inline-block;
    /* 增加悬停区域，使菜单更容易触发 */
    padding: 5px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: 25px;
    transition: var(--transition);
    cursor: pointer;
}

.user-info:hover {
    background-color: rgba(67, 97, 238, 0.1);
}

.user-dropdown .dropdown-menu {
    right: 0;
    left: auto;
    min-width: 200px;
    /* 增加菜单的显示时间和延迟消失 */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    display: block;
    /* 增加菜单的z-index，确保它在其他元素之上 */
    z-index: 1000;
}

.user-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    /* 立即显示菜单 */
    transition-delay: 0s;
}

/* 当鼠标离开时，延迟隐藏菜单 */
.user-dropdown:not(:hover) .dropdown-menu {
    transition-delay: 0.3s; /* 延迟0.3秒隐藏，给用户足够的时间点击 */
}

/* 当鼠标悬停在菜单上时，保持菜单显示 */
.user-dropdown .dropdown-menu:hover {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    /* 悬停在菜单上时，取消延迟隐藏 */
    transition-delay: 0s;
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 8px 0;
}

/* 轮播图：Swiper 接管切换，标题说明常驻显示，无需 .active 规则 */