/* ============================================
   51视频 - 原创样式表
   品牌定位：国内影视传媒公司+动漫社区
   配色：深紫黑 + 亮紫 + 暖橙
   ============================================ */

/* === 基础重置与变量 === */
:root {
  --color-primary: #1A0A2E;
  --color-secondary: #7B2FF7;
  --color-accent: #FF6B35;
  --color-bg: #0D0D1A;
  --color-text: #E8E0F0;
  --color-card: #1E1433;
  --color-card-hover: #2A1B45;
  --color-border: #3D2A5C;
  --color-muted: #9B8AB8;
  --color-success: #4CAF50;
  --color-white: #FFFFFF;
  --gradient-main: linear-gradient(135deg, #7B2FF7 0%, #FF6B35 100%);
  --gradient-dark: linear-gradient(180deg, #1A0A2E 0%, #0D0D1A 100%);
  --gradient-card: linear-gradient(145deg, #1E1433 0%, #150E25 100%);
  --shadow-sm: 0 2px 8px rgba(123,47,247,0.15);
  --shadow-md: 0 4px 20px rgba(123,47,247,0.2);
  --shadow-lg: 0 8px 40px rgba(123,47,247,0.25);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 50%;
  --font-main: 'PingFang SC','Hiragino Sans GB','Microsoft YaHei','WenQuanYi Micro Hei',sans-serif;
  --max-width: 1200px;
  --transition: all 0.3s ease;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* === 头部导航 === */
.site-header {
  background: rgba(26,10,46,0.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo img {
  height: 42px;
  width: auto;
}

.site-logo span {
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  color: var(--color-text);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  background: rgba(123,47,247,0.15);
  color: var(--color-secondary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* === 搜索栏 === */
.search-bar {
  background: var(--color-primary);
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.search-bar .container {
  display: flex;
  justify-content: center;
}

.search-form {
  display: flex;
  width: 100%;
  max-width: 600px;
  position: relative;
}

.search-form input {
  width: 100%;
  padding: 10px 20px;
  padding-right: 50px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 25px;
  color: var(--color-text);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.search-form input:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(123,47,247,0.2);
}

.search-form input::placeholder {
  color: var(--color-muted);
}

.search-form button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--gradient-main);
  border: none;
  color: var(--color-white);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.search-form button:hover {
  opacity: 0.85;
  transform: translateY(-50%) scale(1.05);
}

/* === Hero Banner === */
.hero-section {
  position: relative;
  overflow: hidden;
  padding: 60px 0;
  background: var(--gradient-dark);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('images/hero-banner.png') center/cover no-repeat;
  opacity: 0.4;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 40px 20px;
}

.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--color-muted);
  max-width: 700px;
  margin: 0 auto 30px;
  line-height: 1.8;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
}

.hero-tags span {
  background: rgba(123,47,247,0.2);
  color: var(--color-secondary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  border: 1px solid rgba(123,47,247,0.3);
}

.hero-btn {
  display: inline-block;
  padding: 14px 36px;
  background: var(--gradient-main);
  color: var(--color-white);
  border-radius: 30px;
  font-size: 1.05rem;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.hero-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}

/* === 通用板块标题 === */
.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.section-title h2 span {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title p {
  color: var(--color-muted);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* === 动漫视频卡片 === */
.anime-section {
  padding: 60px 0;
}

.anime-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  cursor: pointer;
}

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

.video-card .card-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.video-card .card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.video-card .play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(13,13,26,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.play-btn {
  width: 60px;
  height: 60px;
  background: var(--gradient-main);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s ease;
}

.play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--color-white);
  margin-left: 4px;
}

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

.card-info {
  padding: 16px;
}

.card-info h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-info .card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--color-muted);
  font-size: 0.82rem;
}

.card-info .card-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.card-tags span {
  background: rgba(123,47,247,0.12);
  color: var(--color-secondary);
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
}

/* === 影视传媒服务 === */
.services-section {
  padding: 60px 0;
  background: var(--color-primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}

.service-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  text-align: center;
}

.service-card:hover {
  border-color: var(--color-secondary);
  transform: translateY(-3px);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-main);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.6rem;
}

.service-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--color-text);
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* === AI赋能专区 === */
.ai-section {
  padding: 60px 0;
}

.ai-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.ai-content img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.ai-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.ai-feature-item {
  background: var(--gradient-card);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.ai-feature-item:hover {
  border-color: var(--color-accent);
}

.ai-feature-item h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--color-accent);
}

.ai-feature-item p {
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* === 社区互动 === */
.community-section {
  padding: 60px 0;
  background: var(--color-primary);
}

.community-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.community-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.community-item {
  background: var(--gradient-card);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: var(--transition);
}

.community-item:hover {
  border-color: var(--color-secondary);
  transform: translateY(-2px);
}

.community-item .icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.community-item h4 {
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.community-item p {
  font-size: 0.82rem;
  color: var(--color-muted);
}

/* === 专家团队 === */
.experts-section {
  padding: 60px 0;
}

.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.expert-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid var(--color-border);
  text-align: center;
  transition: var(--transition);
}

.expert-card:hover {
  border-color: var(--color-secondary);
  transform: translateY(-3px);
}

.expert-card .avatar {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-full);
  margin: 0 auto 16px;
  overflow: hidden;
  border: 3px solid var(--color-secondary);
}

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

.expert-card h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.expert-card .title {
  color: var(--color-accent);
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.expert-card p {
  font-size: 0.88rem;
  color: var(--color-muted);
  margin-bottom: 14px;
  line-height: 1.6;
}

.expert-card .awards {
  font-size: 0.8rem;
  color: var(--color-secondary);
  margin-bottom: 14px;
}

.expert-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.btn-sm {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: transparent;
  cursor: pointer;
}

.btn-sm:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.btn-sm.primary {
  background: var(--gradient-main);
  border: none;
  color: var(--color-white);
}

.btn-sm.primary:hover {
  opacity: 0.9;
}

/* === 合作品牌 === */
.partners-section {
  padding: 60px 0;
  background: var(--color-primary);
}

.partners-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  align-items: center;
}

.partner-logo {
  background: var(--color-card);
  padding: 16px 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-muted);
  transition: var(--transition);
}

.partner-logo:hover {
  border-color: var(--color-secondary);
  color: var(--color-text);
}

/* === 用户评价 === */
.reviews-section {
  padding: 60px 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.review-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--color-border);
}

.review-card .stars {
  color: #FFD700;
  font-size: 0.9rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.review-card .review-text {
  font-size: 0.92rem;
  color: var(--color-text);
  margin-bottom: 14px;
  line-height: 1.7;
  font-style: italic;
}

.review-card .reviewer {
  display: flex;
  align-items: center;
  gap: 10px;
}

.review-card .reviewer-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 0.85rem;
  font-weight: 600;
}

.review-card .reviewer-info {
  font-size: 0.82rem;
}

.review-card .reviewer-info .name {
  color: var(--color-text);
  font-weight: 500;
}

.review-card .reviewer-info .date {
  color: var(--color-muted);
}

/* === FAQ === */
.faq-section {
  padding: 60px 0;
  background: var(--color-primary);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.faq-question {
  padding: 18px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 0.98rem;
  transition: var(--transition);
}

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

.faq-question .toggle {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--color-secondary);
}

.faq-item.active .faq-question .toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 18px;
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

/* === 加入社区指南 === */
.guide-section {
  padding: 60px 0;
}

.guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}

.guide-step {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid var(--color-border);
  text-align: center;
  position: relative;
}

.guide-step .step-num {
  width: 40px;
  height: 40px;
  background: var(--gradient-main);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-weight: 700;
  color: var(--color-white);
}

.guide-step h4 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.guide-step p {
  font-size: 0.88rem;
  color: var(--color-muted);
}

/* === 联系我们 === */
.contact-section {
  padding: 60px 0;
  background: var(--color-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--gradient-card);
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.contact-item .icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-main);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item .info h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.contact-item .info p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.contact-qrcodes {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: flex-start;
}

.qrcode-box {
  text-align: center;
}

.qrcode-box img {
  width: 160px;
  height: 160px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  margin-bottom: 8px;
}

.qrcode-box p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* === 社交分享 === */
.share-bar {
  display: flex;
  gap: 10px;
  justify-content: center;
  padding: 20px 0;
}

.share-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--color-white);
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.share-btn:hover {
  transform: translateY(-2px);
}

.share-btn.wechat { background: #07C160; }
.share-btn.weibo { background: #E6162D; }
.share-btn.douyin { background: #161823; border: 1px solid #333; }
.share-btn.bilibili { background: #00A1D6; }

/* === 页脚 === */
.site-footer {
  background: var(--color-primary);
  border-top: 1px solid var(--color-border);
  padding: 40px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 30px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--color-text);
}

.footer-col p {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.7;
}

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

.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--color-muted);
}

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

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--color-muted);
}

.footer-qrcodes {
  display: flex;
  gap: 16px;
}

.footer-qrcodes .qr-item {
  text-align: center;
}

.footer-qrcodes .qr-item img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.footer-qrcodes .qr-item p {
  font-size: 0.72rem;
  color: var(--color-muted);
  margin-top: 4px;
}

/* === 面包屑 === */
.breadcrumb {
  padding: 14px 0;
  font-size: 0.85rem;
  color: var(--color-muted);
}

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

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

.breadcrumb span {
  margin: 0 8px;
  color: var(--color-border);
}

/* === 内页详情 === */
.detail-section {
  padding: 40px 0;
}

.detail-hero {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 30px;
  aspect-ratio: 21/9;
}

.detail-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-hero .play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(13,13,26,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
}

.detail-main h2 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.detail-main .desc {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.detail-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--color-border);
}

.sidebar-card h4 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--color-accent);
}

.info-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid rgba(61,42,92,0.5);
  font-size: 0.88rem;
}

.info-row .label {
  color: var(--color-muted);
}

.info-row .value {
  color: var(--color-text);
}

/* === 关于页面 === */
.about-hero {
  padding: 60px 0;
  text-align: center;
  background: var(--gradient-dark);
}

.about-hero h1 {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.about-content {
  padding: 40px 0;
}

.about-block {
  margin-bottom: 40px;
}

.about-block h2 {
  font-size: 1.6rem;
  margin-bottom: 16px;
  color: var(--color-secondary);
}

.about-block p {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}

/* === 响应式设计 === */
@media (max-width: 968px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
  }

  .main-nav.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .ai-content,
  .community-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .detail-content {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .hero-content h1 {
    font-size: 1.6rem;
  }

  .section-title h2 {
    font-size: 1.5rem;
  }

  .anime-grid {
    grid-template-columns: 1fr;
  }

  .community-features {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .contact-qrcodes {
    flex-direction: column;
    align-items: center;
  }
}

/* === 懒加载 === */
img[loading="lazy"] {
  opacity: 1;
  transition: opacity 0.5s ease;
}

img[loading="lazy"].lazy-init {
  opacity: 0;
}

img[loading="lazy"].loaded {
  opacity: 1;
}

/* === 动画 === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* === 数据统计条 === */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: 40px;
  padding: 30px 0;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-item .num {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item .label {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-top: 4px;
}

/* === 动漫列表页 === */
.anime-list-section {
  padding: 40px 0;
}

.anime-filter {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  font-size: 0.88rem;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-main);
  border-color: transparent;
  color: var(--color-white);
}

/* === 页面内容区 === */
.page-content {
  padding: 40px 0;
  min-height: 60vh;
}

.page-content h1 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.page-content h2 {
  font-size: 1.5rem;
  margin-bottom: 14px;
  margin-top: 30px;
  color: var(--color-secondary);
}

.page-content p {
  margin-bottom: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}
/* === 今日推荐 时效性模块 === */
.today-update {
  padding: 10px 0;
}

.update-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: var(--gradient-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: 0.88rem;
  color: var(--color-muted);
  flex-wrap: wrap;
}

.update-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.update-tags {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.update-tags a {
  font-size: 0.82rem;
  color: var(--color-secondary);
  padding: 2px 10px;
  border: 1px solid rgba(123,47,247,0.3);
  border-radius: 12px;
  transition: var(--transition);
}

.update-tags a:hover {
  background: rgba(123,47,247,0.15);
}

/* === 娱乐专区 === */
.entertainment-section {
  padding: 60px 0;
  background: var(--color-primary);
}

/* === EEAT 内容质量标准 === */
.eeat-section {
  padding: 60px 0;
}

.eeat-section .service-icon {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-white);
}

/* === 响应式补充 === */
@media (max-width: 968px) {
  .update-tags {
    margin-left: 0;
    margin-top: 8px;
  }
  .update-badge {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .update-tags {
    flex-wrap: wrap;
  }
  .update-tags a {
    font-size: 0.78rem;
  }
}