/* ===================================
   湖南门户网 - 样式文件
   =================================== */

/* CSS变量 - 科技蓝主题 */
:root {
    /* 主色调 - 科技蓝 */
    --primary-color: #0052CC;
    --primary-light: #2684FF;
    --primary-dark: #0747A6;
    --primary-light-bg: #DEEBFF;
    
    /* 辅助色 */
    --accent-color: #00B8D9;
    --accent-light: #36B37E;
    --danger-color: #DE350B;
    
    /* 中性色 */
    --white: #FFFFFF;
    --gray-50: #F4F5F7;
    --gray-100: #EBECF0;
    --gray-200: #DFE1E6;
    --gray-300: #C1C7D0;
    --gray-400: #A5ADBA;
    --gray-500: #6B778C;
    --gray-600: #505F79;
    --gray-700: #344563;
    --gray-800: #172B4D;
    --gray-900: #091E42;
    
    /* 背景色 */
    --bg-light: #F4F5F7;
    --bg-white: #FFFFFF;
    
    /* 文字色 */
    --text-primary: #172B4D;
    --text-secondary: #505F79;
    --text-muted: #6B778C;
    --text-light: #A5ADBA;
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.35s ease;
    
    /* 头部高度 */
    --header-height: 70px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   头部导航
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.logo-icon span {
    color: var(--white);
    font-size: 20px;
    font-weight: bold;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-dark);
    letter-spacing: 1px;
}

.logo-subtitle {
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 2px;
}

/* 导航菜单 */
.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

.nav-link i {
    font-size: 10px;
    transition: transform var(--transition-fast);
}

/* 下拉菜单 */
.has-submenu .submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 102px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    padding: var(--spacing-xs) 0;
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.has-submenu:hover .nav-link i {
    transform: rotate(180deg);
}

.submenu li a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 13px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.submenu li a:hover {
    color: var(--primary-color);
    background: var(--primary-light-bg);
    padding-left: var(--spacing-lg);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 20px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--gray-100);
}

/* ===================================
   主内容区域
   =================================== */
.main-content {
    padding-top: var(--header-height);
    min-height: 100vh;
}

/* 区块通用样式 */
.section {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.section:nth-child(even) {
    background: var(--bg-light);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.section-title-bar {
    width: 4px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
}

.section-more {
    margin-left: auto;
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.section-more:hover {
    color: var(--primary-color);
}

.section-more i {
    font-size: 12px;
}

/* ===================================
   头条新闻区域
   =================================== */
.headlight-section {
    background: linear-gradient(to bottom, var(--white), var(--gray-50));
    padding: var(--spacing-xl) 0;
}

.headlines-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.headline-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.headline-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.headline-tag {
    flex-shrink: 0;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: #FFEBE6;
    color: var(--danger-color);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.headline-content {
    flex: 1;
}

.headline-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
    transition: color var(--transition-fast);
}

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

.headline-summary {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.headline-date {
    font-size: 12px;
    color: var(--text-light);
    margin-top: var(--spacing-xs);
}

/* 头条新闻居中样式 */
.headline-center {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;

}

.headline-item-center {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
    margin: 0 auto;
    max-width: 1200px;
    width: 100%;
}

.headline-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.headline-image {
    width: 100%;
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    border-radius: var(--radius-md);
}

.headline-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.headline-link:hover .headline-title-center {
    color: var(--primary-color);
}

.headline-item-center .headline-tag {
    display: inline-block;
    margin-bottom: var(--spacing-md);
}

.headline-title-center {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
    transition: color var(--transition-fast);
}

.headline-title-center:hover {
    color: var(--primary-color);
}

.headline-summary-center {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

/* ===================================
   专题聚焦区域
   =================================== */
.special-section {
    background: var(--white);
}

.special-wrapper {
    display: flex;
    gap: 0;
}

.special-label {
    flex-shrink: 0;
    width: 40px;
    background: #deebff;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) 0;
}

.special-label span {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    color: #0052cc;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2px;
}

.special-carousel-wrapper {
    flex: 1;
    position: relative;
    background: var(--gray-50);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    overflow: hidden;
}

.special-carousel {
    width: 100%;
    overflow: hidden;
}

.special-track {
    display: flex;
    gap: var(--spacing-md);
    transition: transform 0.3s ease;
}

.special-card {
    flex-shrink: 0;
    width: calc(20% - var(--spacing-md) * 4 / 5);
    background: var(--white);
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.special-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.special-card-img {
    position: relative;
    width: 100%;
    height: 120px;
    overflow: hidden;
}

.special-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.special-card-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    background: var(--primary-color);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 2px;
}

.special-card-content {
    padding: var(--spacing-sm);
}

.special-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    transition: color var(--transition-fast);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.special-card:hover .special-card-title {
    color: var(--primary-color);
}

.special-carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    background: var(--gray-200);
    border: none;
    border-radius: 50%;
    color: var(--gray-600);
    font-size: 12px;
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.special-carousel-wrapper:hover .special-carousel-btn {
    opacity: 1;
}

.special-carousel-btn:hover {
    background: var(--gray-300);
    color: var(--text-primary);
}

.special-carousel-btn-prev {
    left: 8px;
}

.special-carousel-btn-next {
    right: 8px;
}

/* ===================================
   轮播图区域
   =================================== */
.carousel-section {
    background: var(--gray-50);
}

.carousel-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
}

/* 图片新闻轮播 */
.photo-carousel {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    height: 400px;
}

.carousel-track {
    width: 100%;
    height: 100%;
    position: relative;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-lg);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
}

.carousel-title {
    color: var(--white);
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.4);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 16px;
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-carousel:hover .carousel-btn {
    opacity: 1;
}

.carousel-btn:hover {
    background: rgba(0, 0, 0, 0.7);
}

.carousel-btn-prev {
    left: var(--spacing-md);
}

.carousel-btn-next {
    right: var(--spacing-md);
}

.carousel-dots {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-sm);
}

.carousel-dot {
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel-dot.active {
    background: var(--white);
    width: 24px;
    border-radius: 4px;
}

/* 要闻聚焦 */
.focus-news {
    height: 100%;
}

.focus-list {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.focus-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-100);
    transition: background var(--transition-fast);
}

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

.focus-item:hover {
    background: var(--gray-50);
}

.focus-number {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.focus-title {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    transition: color var(--transition-fast);
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

/* ===================================
   卡片通用样式
   =================================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.card {
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
    background: var(--gray-200);
}

.card-content {
    padding: var(--spacing-md);
}

.card-tag {
    display: inline-block;
    padding: 2px var(--spacing-sm);
    background: var(--primary-light-bg);
    color: var(--primary-color);
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}

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

.card-meta {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
    font-size: 12px;
    color: var(--text-light);
}

/* ===================================
   市州县域
   =================================== */
.cities-section {
    background: var(--white);
}

.cities-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--spacing-md);
}

.city-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    transition: all var(--transition-normal);
}

.city-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.city-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-light-bg), var(--primary-light-bg));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary-color);
}

.city-card:hover .city-icon {
    background: var(--primary-color);
    color: var(--white);
}

.city-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ===================================
   页脚
   =================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
}

.footer-main {
    padding: var(--spacing-xxl) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xxl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
}

.footer-logo .logo-title {
    color: var(--white);
    font-size: 18px;
}

.footer-desc {
    font-size: 13px;
    line-height: 1.8;
    color: var(--gray-400);
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    width: 36px;
    height: 36px;
    background: var(--gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--gray-400);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--primary-color);
    color: var(--white);
}

.footer-heading {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    font-size: 13px;
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-light);
}

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: 13px;
    color: var(--gray-400);
}

.footer-contact i {
    color: var(--primary-light);
    margin-top: 3px;
}

.footer-bottom {
    background: var(--gray-800);
    padding: var(--spacing-md) 0;
}

.footer-bottom-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
}

.copyright {
    font-size: 12px;
    color: var(--gray-500);
}

.footer-icp {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 12px;
    color: var(--gray-500);
}

/* ===================================
   响应式设计
   =================================== */
@media (max-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .cities-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .carousel-wrapper {
        grid-template-columns: 1fr;
    }
    
    .photo-carousel {
        height: 350px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-about {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }
    
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--white);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-md);
        justify-content: space-between;
    }
    
    .has-submenu .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--gray-50);
        padding-left: var(--spacing-md);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cities-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .photo-carousel {
        height: 280px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-about {
        grid-column: span 1;
    }
    
    /* 专题聚焦移动端 */
    .special-wrapper {
        flex-direction: column;
    }
    
    .special-label {
        width: 100%;
        border-radius: var(--radius-md) var(--radius-md) 0 0;
        padding: var(--spacing-sm) 0;
    }
    
    .special-label span {
        writing-mode: horizontal-tb;
        font-size: 16px;
        padding: var(--spacing-xs) var(--spacing-md);
    }
    
    .special-carousel-wrapper {
        border-radius: 0 0 var(--radius-md) var(--radius-md);
    }
    
    .special-track {
        gap: var(--spacing-sm);
    }
    
    .special-card {
        width: calc(33.333% - var(--spacing-sm) * 2 / 3);
    }
    
    .special-card-img {
        height: 80px;
    }
    
    .special-card-title {
        font-size: 12px;
    }
    
    /* 头条新闻移动端 */
    .headline-center {
        padding: var(--spacing-md);
    }
    
    .headline-item-center {
        padding: var(--spacing-md);
    }
    
    .headline-title-center {
        font-size: 18px;
    }
    
    .headline-summary-center {
        font-size: 14px;
    }
    
    /* 轮播图区域 */
    .carousel-wrapper {
        gap: var(--spacing-md);
    }
    
    .focus-list {
        margin-top: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .cities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .headline-item {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 18px;
    }
    
    /* 专题聚焦更小屏幕 */
    .special-card {
        width: calc(50% - var(--spacing-sm) / 2);
    }
    
    .special-card-img {
        height: 70px;
    }
    
    .special-card-title {
        font-size: 11px;
        -webkit-line-clamp: 1;
    }
    
    .special-carousel-btn {
        width: 28px;
        height: 28px;
        font-size: 10px;
    }
    
    /* 头条新闻更小屏幕 */
    .headline-title-center {
        font-size: 16px;
    }
    
    .headline-summary-center {
        font-size: 13px;
        -webkit-line-clamp: 3;
    }
}

@media (max-width: 375px) {
    .special-card {
        width: calc(50% - 4px);
    }
    
    .special-card-img {
        height: 60px;
    }
    
    .special-card-title {
        font-size: 10px;
        padding: 4px;
    }
    
    .special-label span {
        font-size: 14px;
    }
    
    .special-carousel-btn {
        width: 24px;
        height: 24px;
    }
    
    .headline-title-center {
        font-size: 15px;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeIn 0.4s ease forwards;
}

.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.2s; }
.card:nth-child(4) { animation-delay: 0.3s; }