/* ========================================
   91网 - 主样式文件
   91爆料猛料吃瓜专题 | 新91视频与大事件全覆盖
   ======================================== */

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

:root {
    --primary: #c0392b;
    --primary-dark: #96281b;
    --primary-light: #e74c3c;
    --secondary: #2c3e50;
    --accent: #f39c12;
    --bg-light: #f5f5f5;
    --bg-white: #ffffff;
    --text-main: #222222;
    --text-sub: #555555;
    --text-light: #888888;
    --border: #e0e0e0;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-hover: 0 6px 20px rgba(0,0,0,0.14);
    --radius: 6px;
    --font-main: 'Microsoft YaHei', '微软雅黑', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-main);
    background: var(--bg-light);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

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

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

ul, ol {
    list-style: none;
}

/* ========================================
   顶部公告栏
   ======================================== */
.top-bar {
    background: var(--secondary);
    color: #ccc;
    font-size: 12px;
    padding: 5px 0;
}

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

.top-bar a {
    color: #aaa;
    margin-left: 12px;
}

.top-bar a:hover {
    color: #fff;
}

.top-bar .notice {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-bar .notice span.label {
    background: var(--primary);
    color: #fff;
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 11px;
}

/* ========================================
   头部 Header
   ======================================== */
.site-header {
    background: var(--bg-white);
    border-bottom: 3px solid var(--primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: #fff;
    font-size: 22px;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    letter-spacing: -1px;
}

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

.logo-text .brand {
    font-size: 22px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1.1;
}

.logo-text .slogan {
    font-size: 11px;
    color: var(--text-light);
    letter-spacing: 1px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-meta {
    font-size: 12px;
    color: var(--text-light);
    text-align: right;
}

.header-meta .update-time {
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   主导航
   ======================================== */
.main-nav {
    background: var(--secondary);
}

.nav-list {
    display: flex;
    align-items: center;
}

.nav-list > li {
    position: relative;
}

.nav-list > li > a {
    display: block;
    color: #fff;
    padding: 12px 18px;
    font-size: 14px;
    font-weight: 600;
    transition: background 0.2s;
    white-space: nowrap;
}

.nav-list > li > a:hover,
.nav-list > li.active > a {
    background: var(--primary);
    color: #fff;
}

.nav-list > li > a.hot::after {
    content: 'HOT';
    background: var(--primary);
    color: #fff;
    font-size: 9px;
    padding: 1px 4px;
    border-radius: 3px;
    margin-left: 4px;
    vertical-align: super;
}

/* 下拉菜单 */
.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    min-width: 160px;
    box-shadow: var(--shadow-hover);
    border-top: 2px solid var(--primary);
    z-index: 999;
}

.nav-list > li:hover .dropdown-menu {
    display: block;
}

.dropdown-menu li a {
    display: block;
    padding: 9px 16px;
    font-size: 13px;
    color: var(--text-main);
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}

.dropdown-menu li a:hover {
    background: #fef0f0;
    color: var(--primary);
}

/* ========================================
   搜索栏
   ======================================== */
.search-bar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}

.search-form {
    display: flex;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
    border: 2px solid var(--primary);
    border-radius: 24px;
    overflow: hidden;
    background: #fff;
}

.search-form input[type="text"] {
    flex: 1;
    border: none;
    outline: none;
    padding: 8px 18px;
    font-size: 14px;
    font-family: var(--font-main);
    color: var(--text-main);
    background: transparent;
}

.search-form input[type="text"]::placeholder {
    color: var(--text-light);
}

.search-form button {
    background: var(--primary);
    border: none;
    color: #fff;
    padding: 8px 22px;
    font-size: 14px;
    cursor: pointer;
    font-family: var(--font-main);
    font-weight: 600;
    transition: background 0.2s;
}

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

/* ========================================
   面包屑
   ======================================== */
.breadcrumb {
    padding: 8px 0;
    font-size: 13px;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--text-light);
}

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

.breadcrumb span {
    margin: 0 6px;
}

/* ========================================
   容器
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ========================================
   Hero Banner
   ======================================== */
.hero-banner {
    position: relative;
    overflow: hidden;
    background: var(--secondary);
}

.hero-banner img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    opacity: 0.85;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(44,62,80,0.85) 40%, transparent 100%);
    display: flex;
    align-items: center;
}

.hero-content {
    padding: 0 60px;
    max-width: 580px;
}

.hero-tag {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 3px;
    margin-bottom: 12px;
    font-weight: 600;
}

.hero-content h1 {
    font-size: 28px;
    font-weight: 900;
    color: #fff;
    line-height: 1.4;
    margin-bottom: 12px;
}

.hero-content p {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 20px;
    line-height: 1.7;
}

.hero-btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 10px 28px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    transition: background 0.2s, transform 0.2s;
}

.hero-btn:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
}

/* ========================================
   主内容区域布局
   ======================================== */
.main-content {
    padding: 24px 0 40px;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 24px;
}

/* ========================================
   栏目标题
   ======================================== */
.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border);
}

.section-title h2 {
    font-size: 18px;
    font-weight: 900;
    color: var(--text-main);
}

.section-title .title-bar {
    width: 4px;
    height: 20px;
    background: var(--primary);
    border-radius: 2px;
}

.section-title .more-link {
    margin-left: auto;
    font-size: 13px;
    color: var(--text-light);
}

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

/* ========================================
   视频卡片
   ======================================== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.video-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: box-shadow 0.25s, transform 0.25s;
    cursor: pointer;
}

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

.video-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: #000;
}

.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.video-play-btn {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s;
    background: rgba(0,0,0,0.35);
}

.video-card:hover .video-play-btn {
    opacity: 1;
}

.play-icon {
    width: 54px;
    height: 54px;
    background: rgba(192,57,43,0.92);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}

.video-card:hover .play-icon {
    transform: scale(1.1);
}

.play-icon::after {
    content: '';
    display: block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 11px 0 11px 20px;
    border-color: transparent transparent transparent #fff;
    margin-left: 4px;
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.75);
    color: #fff;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 3px;
}

.video-tag {
    position: absolute;
    top: 8px;
    left: 8px;
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 3px;
    font-weight: 600;
}

.video-info {
    padding: 12px;
}

.video-info h3 {
    font-size: 14px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-info h3 a:hover {
    color: var(--primary);
}

.video-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-light);
}

.video-meta .views::before { content: '▶ '; }
.video-meta .likes::before { content: '♥ '; color: var(--primary); }
.video-meta .comments::before { content: '💬 '; }

/* ========================================
   新闻列表卡片
   ======================================== */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.news-card {
    display: flex;
    gap: 14px;
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s;
}

.news-card:hover {
    box-shadow: var(--shadow-hover);
}

.news-card .thumb {
    flex-shrink: 0;
    width: 120px;
    height: 80px;
    border-radius: 4px;
    overflow: hidden;
}

.news-card .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.news-card:hover .thumb img {
    transform: scale(1.05);
}

.news-card .content {
    flex: 1;
    min-width: 0;
}

.news-card .content h3 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
    line-height: 1.5;
}

.news-card .content h3 a:hover {
    color: var(--primary);
}

.news-card .content p {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
}

.news-card .meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-light);
    flex-wrap: wrap;
}

.news-card .meta .author {
    color: var(--primary);
    font-weight: 600;
}

.news-card .meta .cat-tag {
    background: #fef0f0;
    color: var(--primary);
    padding: 1px 7px;
    border-radius: 3px;
    font-size: 11px;
}

/* ========================================
   热门阅读列表
   ======================================== */
.hot-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 24px;
}

.hot-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

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

.hot-rank {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: var(--border);
    color: var(--text-light);
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 3px;
}

.hot-rank.top1 { background: var(--primary); color: #fff; }
.hot-rank.top2 { background: #e67e22; color: #fff; }
.hot-rank.top3 { background: var(--accent); color: #fff; }

.hot-item h4 {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
    flex: 1;
}

.hot-item h4 a:hover {
    color: var(--primary);
}

/* ========================================
   专题卡片
   ======================================== */
.topic-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.topic-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 16/9;
    box-shadow: var(--shadow);
}

.topic-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.topic-card:hover img {
    transform: scale(1.05);
}

.topic-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.75) 40%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 16px;
}

.topic-overlay .tag {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 3px;
    margin-bottom: 6px;
    width: fit-content;
}

.topic-overlay h3 {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    line-height: 1.4;
}

.topic-overlay p {
    font-size: 12px;
    color: rgba(255,255,255,0.8);
    margin-top: 4px;
}

/* ========================================
   侧边栏
   ======================================== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-widget {
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.widget-title {
    background: var(--secondary);
    color: #fff;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 6px;
}

.widget-title::before {
    content: '';
    width: 3px;
    height: 16px;
    background: var(--primary);
    border-radius: 2px;
    display: block;
}

.widget-body {
    padding: 12px 14px;
}

/* 热门标签 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-cloud a {
    display: inline-block;
    background: var(--bg-light);
    color: var(--text-sub);
    padding: 4px 10px;
    border-radius: 3px;
    font-size: 12px;
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.tag-cloud a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* 推荐作者 */
.author-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.author-info h4 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 2px;
}

.author-info p {
    font-size: 12px;
    color: var(--text-light);
}

.author-follow {
    margin-left: auto;
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 3px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-main);
}

.author-follow:hover {
    background: var(--primary);
    color: #fff;
}

/* 侧边栏新闻 */
.sidebar-news {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.sidebar-news-item {
    display: flex;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

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

.sidebar-news-item .thumb {
    width: 70px;
    height: 50px;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
}

.sidebar-news-item .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sidebar-news-item h4 {
    font-size: 13px;
    font-weight: 600;
    line-height: 1.5;
    flex: 1;
}

.sidebar-news-item h4 a:hover {
    color: var(--primary);
}

.sidebar-news-item .date {
    font-size: 11px;
    color: var(--text-light);
    margin-top: 4px;
}

/* ========================================
   FAQ 区域
   ======================================== */
.faq-section {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.faq-item {
    border-bottom: 1px solid var(--border);
}

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

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    cursor: pointer;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-main);
    user-select: none;
    gap: 10px;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question .q-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 3px;
}

.faq-question .toggle {
    flex-shrink: 0;
    font-size: 18px;
    color: var(--text-light);
    transition: transform 0.25s;
}

.faq-item.open .toggle {
    transform: rotate(45deg);
    color: var(--primary);
}

.faq-answer {
    display: none;
    padding: 0 0 14px 34px;
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.8;
}

.faq-item.open .faq-answer {
    display: block;
}

/* ========================================
   用户评论
   ======================================== */
.reviews-section {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.review-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 14px;
    border-left: 3px solid var(--primary);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.review-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.review-user {
    font-size: 14px;
    font-weight: 700;
}

.review-stars {
    color: var(--accent);
    font-size: 13px;
    margin-left: auto;
}

.review-text {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.7;
}

.review-date {
    font-size: 11px;
    color: var(--text-light);
    margin-top: 6px;
}

/* ========================================
   投稿/联系入口
   ======================================== */
.contact-section {
    background: linear-gradient(135deg, var(--secondary) 0%, #34495e 100%);
    color: #fff;
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 24px;
    text-align: center;
}

.contact-section h2 {
    font-size: 22px;
    font-weight: 900;
    margin-bottom: 10px;
}

.contact-section p {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 20px;
}

.contact-btns {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-btn {
    display: inline-block;
    padding: 10px 28px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 700;
    transition: all 0.2s;
}

.contact-btn.primary {
    background: var(--primary);
    color: #fff;
}

.contact-btn.primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
}

.contact-btn.outline {
    border: 2px solid rgba(255,255,255,0.6);
    color: #fff;
}

.contact-btn.outline:hover {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

/* ========================================
   页脚
   ======================================== */
.site-footer {
    background: var(--secondary);
    color: rgba(255,255,255,0.75);
    padding: 40px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo-text .brand {
    color: #fff;
}

.footer-brand .logo-text .slogan {
    color: rgba(255,255,255,0.5);
}

.footer-brand p {
    font-size: 13px;
    line-height: 1.8;
    margin-top: 12px;
    color: rgba(255,255,255,0.6);
}

.footer-col h4 {
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}

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

.footer-col ul li a {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    transition: color 0.2s;
}

.footer-col ul li a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding: 16px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: rgba(255,255,255,0.45);
    flex-wrap: wrap;
    gap: 8px;
}

.footer-bottom a {
    color: rgba(255,255,255,0.45);
}

.footer-bottom a:hover {
    color: rgba(255,255,255,0.8);
}

.footer-links {
    display: flex;
    gap: 14px;
}

/* ========================================
   行业观察区块
   ======================================== */
.industry-section {
    margin-bottom: 24px;
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.industry-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    border-top: 3px solid var(--primary);
    transition: box-shadow 0.2s;
}

.industry-card:hover {
    box-shadow: var(--shadow-hover);
}

.industry-card .ic-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.industry-card .ic-icon {
    width: 32px;
    height: 32px;
    background: #fef0f0;
    color: var(--primary);
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
}

.industry-card h3 {
    font-size: 15px;
    font-weight: 700;
}

.industry-card p {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.7;
    margin-bottom: 10px;
}

.industry-card .read-more {
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   滚动公告
   ======================================== */
.ticker-wrap {
    background: #fef0f0;
    border-bottom: 1px solid #fcc;
    padding: 7px 0;
    overflow: hidden;
}

.ticker-label {
    background: var(--primary);
    color: #fff;
    padding: 2px 10px;
    font-size: 12px;
    font-weight: 700;
    border-radius: 3px;
    white-space: nowrap;
    flex-shrink: 0;
}

.ticker-inner {
    display: flex;
    align-items: center;
    gap: 14px;
}

.ticker-text {
    overflow: hidden;
    flex: 1;
}

.ticker-text ul {
    display: flex;
    gap: 40px;
    animation: ticker-scroll 30s linear infinite;
    white-space: nowrap;
}

.ticker-text ul li a {
    font-size: 13px;
    color: var(--text-sub);
}

.ticker-text ul li a:hover {
    color: var(--primary);
}

@keyframes ticker-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-banner img { height: 220px; }
    .hero-content { padding: 0 20px; }
    .hero-content h1 { font-size: 20px; }
    .video-grid { grid-template-columns: 1fr; }
    .topic-grid { grid-template-columns: 1fr; }
    .reviews-grid { grid-template-columns: 1fr; }
    .industry-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .nav-list > li > a { padding: 10px 12px; font-size: 13px; }
    .header-meta { display: none; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .container { padding: 0 12px; }
    .hero-overlay { background: rgba(44,62,80,0.7); }
    .news-card .thumb { width: 90px; height: 65px; }
    .contact-section { padding: 20px; }
}

/* ========================================
   工具类
   ======================================== */
.text-red { color: var(--primary); }
.text-muted { color: var(--text-light); }
.font-bold { font-weight: 700; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(192,57,43,0.4);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 999;
    text-decoration: none;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    background: var(--primary-dark);
    color: #fff;
}