/* =============================================
   成人小说 - 影视传媒社区 主样式文件
   wkzw2c.cn
   ============================================= */

/* ---- CSS变量 ---- */
:root {
  --primary: #c8102e;
  --primary-dark: #9b0d23;
  --primary-light: #e8304a;
  --accent: #f5a623;
  --accent-dark: #d4891a;
  --bg-dark: #0d0d14;
  --bg-card: #16161f;
  --bg-section: #111119;
  --text-main: #f0f0f5;
  --text-muted: #9090a8;
  --text-light: #c8c8d8;
  --border: #2a2a3a;
  --gradient-hero: linear-gradient(135deg, #0d0d14 0%, #1a0a12 50%, #0d0d14 100%);
  --gradient-card: linear-gradient(145deg, #1c1c28, #13131e);
  --gradient-btn: linear-gradient(135deg, #c8102e, #f5a623);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-hover: 0 16px 48px rgba(200,16,46,0.25);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- 重置与基础 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ---- 容器 ---- */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.container-wide { max-width: 1440px; margin: 0 auto; padding: 0 32px; }

/* ---- 顶部公告栏 ---- */
.top-bar {
  background: var(--primary);
  color: #fff;
  text-align: center;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.top-bar a { color: #fff; text-decoration: underline; margin-left: 8px; }

/* ---- 导航栏 ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,13,20,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.6); }
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}
.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--gradient-btn);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -1px;
}
.logo-text { font-size: 22px; font-weight: 800; color: #fff; }
.logo-text span { color: var(--accent); }
.logo-sub { font-size: 11px; color: var(--text-muted); display: block; line-height: 1; }

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-item { position: relative; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: #fff;
  background: rgba(200,16,46,0.15);
}
.nav-link.active { color: var(--primary-light); }
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 160px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  z-index: 100;
}
.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--text-light);
  border-radius: var(--radius-sm);
}
.nav-dropdown a:hover { background: rgba(200,16,46,0.12); color: var(--primary-light); }

.navbar-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.btn-nav-join {
  padding: 8px 20px;
  background: var(--gradient-btn);
  color: #fff;
  border-radius: 24px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-nav-join:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(200,16,46,0.4); }

/* ---- 搜索框 ---- */
.search-bar-wrap {
  background: var(--bg-section);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.search-bar-inner {
  display: flex;
  align-items: center;
  max-width: 680px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 32px;
  overflow: hidden;
  transition: var(--transition);
}
.search-bar-inner:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(200,16,46,0.15);
}
.search-bar-inner input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--text-main);
}
.search-bar-inner input::placeholder { color: var(--text-muted); }
.search-bar-inner button {
  padding: 10px 24px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}
.search-bar-inner button:hover { background: var(--primary-dark); }
.search-hot-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 680px;
  margin: 8px auto 0;
  flex-wrap: wrap;
}
.search-hot-tags span { font-size: 12px; color: var(--text-muted); }
.search-hot-tags a {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2px 10px;
  border-radius: 12px;
  transition: var(--transition);
}
.search-hot-tags a:hover { color: var(--primary-light); border-color: var(--primary); }

/* ---- 英雄区 ---- */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
  transform: scale(1.05);
  transition: transform 8s ease;
}
.hero:hover .hero-bg { transform: scale(1.0); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,13,20,0.9) 0%, rgba(155,13,35,0.3) 50%, rgba(13,13,20,0.85) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(200,16,46,0.2);
  border: 1px solid rgba(200,16,46,0.4);
  color: var(--primary-light);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero-badge::before { content: '●'; font-size: 8px; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  color: #fff;
}
.hero h1 em { color: var(--accent); font-style: normal; }
.hero-desc {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.8;
  max-width: 560px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--gradient-btn);
  color: #fff;
  border-radius: 32px;
  font-size: 15px;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(200,16,46,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(200,16,46,0.5); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border: 2px solid rgba(255,255,255,0.3);
  color: #fff;
  border-radius: 32px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-outline:hover { border-color: var(--primary-light); color: var(--primary-light); background: rgba(200,16,46,0.1); }
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.hero-stat { text-align: left; }
.hero-stat-num { font-size: 28px; font-weight: 800; color: var(--accent); line-height: 1; }
.hero-stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ---- 区块通用 ---- */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-section); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  background: rgba(200,16,46,0.15);
  color: var(--primary-light);
  border: 1px solid rgba(200,16,46,0.3);
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-title span { color: var(--primary-light); }
.section-desc { font-size: 15px; color: var(--text-muted); max-width: 560px; margin: 0 auto; line-height: 1.8; }

/* ---- 视频卡片 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(200,16,46,0.3);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #1a1a26;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.08); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(200,16,46,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: var(--transition);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon::after {
  content: '';
  border-left: 20px solid #fff;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  margin-left: 4px;
}
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.8);
  color: #fff;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}
.video-stats { display: flex; gap: 12px; }
.video-stat { display: flex; align-items: center; gap: 4px; }

/* ---- 专家卡片 ---- */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}
.expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(200,16,46,0.3);
}
.expert-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--primary);
}
.expert-name { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.expert-title { font-size: 13px; color: var(--primary-light); margin-bottom: 8px; font-weight: 500; }
.expert-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.expert-tags { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-bottom: 16px; }
.expert-tag {
  font-size: 11px;
  background: rgba(200,16,46,0.12);
  color: var(--primary-light);
  border: 1px solid rgba(200,16,46,0.25);
  padding: 2px 8px;
  border-radius: 10px;
}
.expert-actions { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-sm-primary { background: var(--primary); color: #fff; }
.btn-sm-primary:hover { background: var(--primary-dark); }
.btn-sm-outline { border: 1px solid var(--border); color: var(--text-muted); }
.btn-sm-outline:hover { border-color: var(--primary); color: var(--primary-light); }

/* ---- 功能模块卡片 ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(200,16,46,0.35);
  box-shadow: 0 8px 32px rgba(200,16,46,0.15);
}
.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: rgba(200,16,46,0.12);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  transition: var(--transition);
}
.feature-card:hover .feature-icon { background: rgba(200,16,46,0.25); transform: scale(1.1); }
.feature-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.feature-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ---- 评论区 ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.review-card:hover { border-color: rgba(200,16,46,0.25); box-shadow: 0 4px 24px rgba(0,0,0,0.3); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-name { font-size: 14px; font-weight: 600; color: #fff; }
.review-date { font-size: 12px; color: var(--text-muted); }
.review-stars { color: var(--accent); font-size: 14px; margin-bottom: 10px; }
.review-text { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.review-tag { font-size: 11px; color: var(--primary-light); margin-top: 10px; }

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: rgba(200,16,46,0.35); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  background: var(--gradient-card);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
  gap: 16px;
}
.faq-question:hover { color: #fff; }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(200,16,46,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  font-size: 16px;
  color: var(--primary-light);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(200,16,46,0.3); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: var(--bg-card);
}
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* ---- 合作品牌 ---- */
.partners-grid {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}
.partner-item {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 28px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
  text-align: center;
}
.partner-item:hover { color: #fff; border-color: rgba(200,16,46,0.3); transform: translateY(-2px); }

/* ---- 联系区 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.contact-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.contact-card:hover { border-color: rgba(200,16,46,0.3); transform: translateY(-3px); }
.contact-icon { font-size: 36px; margin-bottom: 12px; }
.contact-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.contact-info { font-size: 14px; color: var(--text-muted); line-height: 1.8; }
.contact-info a { color: var(--primary-light); }
.qr-code {
  width: 100px;
  height: 100px;
  margin: 12px auto 0;
  background: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.qr-code canvas { display: block; }

/* ---- 分享按钮 ---- */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 24px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  border: 1px solid var(--border);
  color: var(--text-light);
}
.share-btn:hover { transform: translateY(-2px); }
.share-wechat { border-color: #07c160; }
.share-wechat:hover { background: rgba(7,193,96,0.1); color: #07c160; }
.share-weibo { border-color: #e6162d; }
.share-weibo:hover { background: rgba(230,22,45,0.1); color: #e6162d; }
.share-douyin { border-color: #fe2c55; }
.share-douyin:hover { background: rgba(254,44,85,0.1); color: #fe2c55; }
.share-bilibili { border-color: #00a1d6; }
.share-bilibili:hover { background: rgba(0,161,214,0.1); color: #00a1d6; }

/* ---- 页脚 ---- */
.footer {
  background: #080810;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .logo-text { font-size: 24px; margin-bottom: 12px; display: block; }
.footer-desc { font-size: 14px; color: var(--text-muted); line-height: 1.8; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.social-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition);
}
.social-icon:hover { border-color: var(--primary); background: rgba(200,16,46,0.15); }
.footer-col-title { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 13px; color: var(--text-muted); transition: var(--transition); }
.footer-links a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copyright { font-size: 13px; color: var(--text-muted); }
.footer-copyright a { color: var(--text-muted); }
.footer-copyright a:hover { color: var(--primary-light); }
.footer-update { font-size: 12px; color: var(--text-muted); }

/* ---- 汉堡菜单 ---- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- 面包屑 ---- */
.breadcrumb {
  padding: 14px 0;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb span { margin: 0 6px; }

/* ---- 分页 ---- */
.pagination {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 48px;
  flex-wrap: wrap;
}
.page-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  cursor: pointer;
}
.page-btn:hover, .page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---- 标签云 ---- */
.tag-cloud { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: var(--transition);
  cursor: pointer;
}
.tag:hover { border-color: var(--primary); color: var(--primary-light); }

/* ---- 统计数字 ---- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  text-align: center;
  padding: 28px 16px;
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.stat-num { font-size: 36px; font-weight: 800; color: var(--accent); line-height: 1; }
.stat-unit { font-size: 16px; color: var(--accent); }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 8px; }

/* ---- How-To指南 ---- */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
  position: relative;
}
.step-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  position: relative;
}
.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-btn);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.step-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ---- 弹窗 ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 480px;
  width: 90%;
  transform: scale(0.9);
  transition: var(--transition);
}
.modal-overlay.open .modal { transform: scale(1); }
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-section);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-muted);
  cursor: pointer;
}

/* ---- 返回顶部 ---- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  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;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: 0 4px 16px rgba(200,16,46,0.4);
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-3px); }

/* ---- 懒加载占位 ---- */
.lazy { opacity: 0; transition: opacity 0.5s ease; }
.lazy.loaded { opacity: 1; }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .navbar-nav { display: none; }
  .hamburger { display: flex; }
  .navbar-nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    gap: 4px;
  }
  .hero { min-height: 420px; }
  .hero h1 { font-size: 1.8rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .experts-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .section { padding: 56px 0; }
  .container { padding: 0 16px; }
}
@media (max-width: 480px) {
  .hero-stats { gap: 20px; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ---- 动画 ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.6s ease forwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* ---- 内页通用 ---- */
.page-hero {
  padding: 80px 0 60px;
  background: linear-gradient(135deg, var(--bg-dark) 0%, rgba(155,13,35,0.15) 50%, var(--bg-dark) 100%);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; color: #fff; margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: var(--text-muted); max-width: 560px; margin: 0 auto; }

/* ---- 文章卡片 ---- */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.article-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(200,16,46,0.3); }
.article-img { aspect-ratio: 16/9; overflow: hidden; }
.article-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.article-card:hover .article-img img { transform: scale(1.06); }
.article-body { padding: 20px; }
.article-cat {
  font-size: 11px;
  font-weight: 600;
  color: var(--primary-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.article-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; line-height: 1.5; }
.article-excerpt { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 12px; }
.article-footer { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--text-muted); }