/* =============================================
   国产主播 - 全局样式
   Brand: 国产主播 | Domain: vhLtyup.cn
   ============================================= */

/* --- CSS变量 --- */
:root {
  --primary: #7C3AED;
  --primary-dark: #5B21B6;
  --primary-light: #A78BFA;
  --accent: #3B82F6;
  --accent-dark: #1D4ED8;
  --neon: #06B6D4;
  --bg-dark: #0D0D1A;
  --bg-card: #13132A;
  --bg-card2: #1A1A35;
  --text-main: #F1F0FF;
  --text-muted: #9CA3AF;
  --text-light: #D1D5DB;
  --border: rgba(124,58,237,0.25);
  --gold: #F59E0B;
  --red: #EF4444;
  --green: #10B981;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(124,58,237,0.18);
  --shadow-hover: 0 8px 40px rgba(124,58,237,0.38);
  --transition: 0.28s cubic-bezier(.4,0,.2,1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--neon); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

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

/* =============================================
   顶部导航
   ============================================= */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(13,13,26,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  height: 68px;
  gap: 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-logo img {
  height: 40px;
  width: auto;
}
.site-logo .logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light), var(--neon));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.main-nav a {
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-light);
  white-space: nowrap;
  transition: all var(--transition);
}
.main-nav a:hover,
.main-nav a.active {
  background: rgba(124,58,237,0.18);
  color: var(--primary-light);
}
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 6px 16px;
  gap: 8px;
  min-width: 200px;
}
.header-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 0.88rem;
  width: 140px;
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--primary-light);
  font-size: 1rem;
  padding: 0;
  display: flex;
  align-items: center;
}
.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: all var(--transition);
}

/* =============================================
   搜索框（导航下方）
   ============================================= */
#nav-search-bar {
  background: rgba(13,13,26,0.85);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  display: flex;
  justify-content: center;
  margin-top: 68px;
}
.nav-search-inner {
  max-width: 640px;
  width: 100%;
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.05);
  border: 1.5px solid var(--primary);
  border-radius: 30px;
  overflow: hidden;
  box-shadow: 0 0 16px rgba(124,58,237,0.2);
}
.nav-search-inner input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 0.95rem;
  padding: 10px 20px;
}
.nav-search-inner input::placeholder { color: var(--text-muted); }
.nav-search-inner button {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: none;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 28px;
  cursor: pointer;
  transition: opacity var(--transition);
}
.nav-search-inner button:hover { opacity: 0.88; }

/* =============================================
   Banner 区域
   ============================================= */
#hero-banner {
  position: relative;
  width: 100%;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 0;
}
.banner-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/banner_bg.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.55);
  z-index: 0;
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(91,33,182,0.55) 0%, rgba(13,13,26,0.7) 100%);
  z-index: 1;
}
.banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 60px 20px 40px;
  max-width: 900px;
}
.vurfz {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(124,58,237,0.3);
  border: 1px solid var(--primary-light);
  border-radius: 20px;
  padding: 4px 16px;
  font-size: 0.82rem;
  color: var(--primary-light);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}
.banner-content h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #fff 0%, var(--primary-light) 50%, var(--neon) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.banner-content p {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: rgba(255,255,255,0.82);
  max-width: 680px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
.banner-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  padding: 12px 32px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(124,58,237,0.4);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(124,58,237,0.6);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: #fff;
  padding: 12px 32px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-outline:hover {
  border-color: var(--primary-light);
  color: var(--primary-light);
  background: rgba(124,58,237,0.12);
}
.banner-stats {
  display: flex;
  gap: 40px;
  justify-content: center;
  margin-top: 40px;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.iyuqq {
  font-size: 1.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--gold), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.b0vv10 { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

/* =============================================
   通用 Section
   ============================================= */
.section {
  padding: 72px 20px;
  max-width: 1280px;
  margin: 0 auto;
}
.section-alt {
  background: rgba(124,58,237,0.04);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-alt .section { padding: 72px 20px; }
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.ws6egsfs {
  display: inline-block;
  background: rgba(124,58,237,0.15);
  color: var(--primary-light);
  border: 1px solid var(--primary);
  border-radius: 20px;
  padding: 3px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}
.section-header h2 span { color: var(--primary-light); }
.section-header p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
}

/* =============================================
   视频卡片
   ============================================= */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.video-thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  background: var(--bg-card2);
}
.video-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.35);
  opacity: 0;
  transition: opacity var(--transition);
}
.video-card:hover .play-overlay { opacity: 1; }
.play-btn {
  width: 56px;
  height: 56px;
  background: rgba(124,58,237,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  border: 2px solid rgba(255,255,255,0.3);
  transition: transform var(--transition);
}
.play-btn:hover { transform: scale(1.12); }
.play-btn svg { width: 22px; height: 22px; fill: #fff; margin-left: 3px; }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}
.sqsi1jx {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}
.video-info {
  padding: 14px 16px;
}
.video-info h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 3px; }
.video-author {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.author-name { font-size: 0.8rem; color: var(--text-muted); }

/* =============================================
   功能模块卡片
   ============================================= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 52px;
  height: 52px;
  background: rgba(124,58,237,0.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* =============================================
   专家展示
   ============================================= */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.expert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}
.expert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.expert-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border: 3px solid var(--primary-light);
  box-shadow: 0 0 20px rgba(124,58,237,0.3);
}
.expert-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 4px; }
.lqylf { color: var(--primary-light); font-size: 0.82rem; margin-bottom: 12px; }
.5qcz0vr { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 16px; line-height: 1.6; }
.sgnulely { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 16px; }
.6v7c4a {
  background: rgba(245,158,11,0.12);
  color: var(--gold);
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: 12px;
  padding: 2px 10px;
  font-size: 0.72rem;
}
.expert-btns { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}
.btn-sm-primary { background: var(--primary); color: #fff; }
.btn-sm-primary:hover { background: var(--primary-dark); }
.btn-sm-outline { background: transparent; color: var(--primary-light); border: 1px solid var(--primary); }
.btn-sm-outline:hover { background: rgba(124,58,237,0.15); }

/* =============================================
   FAQ
   ============================================= */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-question {
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--transition);
  gap: 12px;
}
.faq-question:hover { background: rgba(124,58,237,0.08); }
.faq-icon {
  width: 24px;
  height: 24px;
  background: rgba(124,58,237,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  transition: transform var(--transition);
  color: var(--primary-light);
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding var(--transition);
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 18px; }

/* =============================================
   用户评论
   ============================================= */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}
.review-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.8fgmv4o2 { color: var(--gold); font-size: 1rem; margin-bottom: 12px; }
.review-text { font-size: 0.88rem; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; }
.review-user { display: flex; align-items: center; gap: 10px; }
.review-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--neon));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.9upa4h { font-size: 0.88rem; font-weight: 600; }
.l961xcsc { font-size: 0.75rem; color: var(--text-muted); }

/* =============================================
   合作品牌 Logo 墙
   ============================================= */
.partner-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}
.partner-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 28px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: all var(--transition);
  cursor: pointer;
}
.partner-item:hover { border-color: var(--primary); color: var(--primary-light); background: rgba(124,58,237,0.08); }

/* =============================================
   How-To 加入社区
   ============================================= */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
  counter-reset: step;
}
.howto-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px 24px;
  text-align: center;
  position: relative;
  transition: all var(--transition);
}
.howto-step:hover { border-color: var(--primary); transform: translateY(-4px); }
.weptpt {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: #fff;
  margin: 0 auto 16px;
}
.howto-step h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; }
.howto-step p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; }

/* =============================================
   联系我们 / 社区入口
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.contact-info-card h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 20px; color: var(--primary-light); }
.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.tuwe8ct { font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.5dv11 { color: var(--text-muted); font-size: 0.8rem; }
.contact-val { color: var(--text-main); font-weight: 500; }
.qr-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.qr-item { text-align: center; }
.qr-item img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  border: 2px solid var(--border);
  margin-bottom: 6px;
}
.qr-item p { font-size: 0.75rem; color: var(--text-muted); }

/* =============================================
   社交分享
   ============================================= */
.share-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 24px;
}
.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 24px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  color: #fff;
}
.share-wechat { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-douyin { background: #010101; border: 1px solid #333; }
.share-bilibili { background: #00A1D6; }
.share-btn:hover { opacity: 0.85; transform: translateY(-2px); }

/* =============================================
   页脚
   ============================================= */
#site-footer {
  background: #080812;
  border-top: 1px solid var(--border);
  padding: 56px 20px 28px;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo-text {
  font-size: 1.4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary-light), var(--neon));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.footer-col h4 { font-size: 0.9rem; font-weight: 700; color: var(--text-main); margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.83rem; color: var(--text-muted); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-logo-img { height: 32px; width: auto; }

/* =============================================
   面包屑
   ============================================= */
.breadcrumb {
  padding: 12px 20px;
  max-width: 1280px;
  margin: 0 auto;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--primary-light); }

/* =============================================
   内页 Hero
   ============================================= */
.inner-hero {
  position: relative;
  padding: 80px 20px 60px;
  text-align: center;
  overflow: hidden;
}
.inner-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(91,33,182,0.15), rgba(59,130,246,0.08));
  z-index: 0;
}
.inner-hero > * { position: relative; z-index: 1; }
.inner-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  margin-bottom: 12px;
}
.inner-hero h1 span { color: var(--primary-light); }
.inner-hero p { color: var(--text-muted); font-size: 1rem; max-width: 560px; margin: 0 auto; }

/* =============================================
   AI 赋能模块
   ============================================= */
.ai-feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 60px;
}
.ai-feature-row.reverse { direction: rtl; }
.ai-feature-row.reverse > * { direction: ltr; }
.ai-img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.ai-img-wrap img { width: 100%; display: block; }
.ai-text h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 12px; }
.ai-text h3 span { color: var(--primary-light); }
.ai-text p { color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }
.czyd12s { display: flex; flex-wrap: wrap; gap: 8px; }
.czyd12 {
  background: rgba(124,58,237,0.12);
  color: var(--primary-light);
  border: 1px solid var(--primary);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 600;
}

/* =============================================
   Tab 切换
   ============================================= */
.tab-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.tab-btn {
  padding: 8px 20px;
  border-radius: 24px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  transition: all var(--transition);
}
.tab-btn.active, .tab-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .ai-feature-row { grid-template-columns: 1fr; }
  .ai-feature-row.reverse { direction: ltr; }
}
@media (max-width: 768px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: rgba(13,13,26,0.97); padding: 16px; border-bottom: 1px solid var(--border); z-index: 999; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 10px 16px; border-radius: 8px; }
  .hamburger { display: flex; }
  .header-search { display: none; }
  .footer-top { grid-template-columns: 1fr; }
  .banner-stats { gap: 24px; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .expert-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
}
@media (max-width: 480px) {
  .section { padding: 48px 16px; }
  .video-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 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); }
}
.fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* =============================================
   懒加载占位
   ============================================= */
img[data-src] { opacity: 0; transition: opacity 0.4s ease; }
img.loaded { opacity: 1; }

/* =============================================
   模态框
   ============================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-box {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 480px;
  width: 90%;
  text-align: center;
}
.modal-box h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 12px; }
.modal-box p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 20px; }
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
}

/* =============================================
   导航搜索栏标签
   ============================================= */
.lq804km {
  padding: 0 16px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary-light);
  white-space: nowrap;
  border-right: 1px solid var(--border);
  margin-right: 0;
}

/* =============================================
   Footer 增强样式
   ============================================= */
.footer-logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  text-decoration: none;
}
.yh5n0p9e {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.e8x8zv1 {
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.3);
  color: var(--primary-light);
  border-radius: 20px;
  padding: 3px 12px;
  font-size: 0.75rem;
  font-weight: 600;
}
.footer-share-wrap {
  text-align: center;
  padding: 28px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.nzqn0 {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.footer-bottom-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom-right a {
  color: var(--text-muted);
  font-size: 0.8rem;
}
.footer-bottom-right a:hover { color: var(--primary-light); }
.3so8uw {
  text-align: center;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.3so8uw p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* =============================================
   娱乐专区 / 幕后花絮 / 亲密教育 专属样式
   ============================================= */
.entertainment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}
.entertainment-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
}
.entertainment-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.entertainment-thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  background: var(--bg-card2);
}
.entertainment-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.entertainment-card:hover .entertainment-thumb img { transform: scale(1.06); }
.entertainment-thumb .play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  transition: opacity var(--transition);
}
.entertainment-card:hover .play-overlay { opacity: 1; }
.entertainment-body {
  padding: 18px 20px;
}
.entertainment-body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.45;
}
.entertainment-body p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 12px;
}
.ejywp {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.7nnnjc3a {
  display: inline-block;
  background: rgba(124,58,237,0.18);
  color: var(--primary-light);
  border-radius: 6px;
  padding: 2px 10px;
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 8px;
}

/* =============================================
   社区频道卡片（JSON格式展示）
   ============================================= */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
}
.channel-card:hover {
  border-color: var(--primary);
  background: rgba(124,58,237,0.08);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.4olrtvn {
  font-size: 2.2rem;
  margin-bottom: 12px;
}
.vt2nk5 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-main);
}
.96bxf {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.t03iim3 {
  margin-top: 10px;
  font-size: 0.75rem;
  color: var(--primary-light);
  font-weight: 600;
}

/* =============================================
   TikTok 短视频样式
   ============================================= */
.tiktok-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.tiktok-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
}
.tiktok-card:hover {
  border-color: var(--primary);
  transform: scale(1.03);
  box-shadow: var(--shadow);
}
.tiktok-thumb {
  position: relative;
  width: 100%;
  padding-top: 177.78%; /* 9:16 竖版 */
  overflow: hidden;
  background: var(--bg-card2);
}
.tiktok-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.tiktok-card:hover .tiktok-thumb img { transform: scale(1.06); }
.tiktok-thumb .play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.35);
  opacity: 0;
  transition: opacity var(--transition);
}
.tiktok-card:hover .play-overlay { opacity: 1; }
.14rtc {
  padding: 10px 12px;
}
.14rtc h4 {
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.14rtc .g53je3mx {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* =============================================
   隐私/协议/免责声明 页面
   ============================================= */
.ymoon {
  max-width: 860px;
  margin: 0 auto;
  padding: 80px 20px 60px;
}
.ymoon h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 900;
  margin-bottom: 8px;
  color: var(--text-main);
}
.ymoon .mfydennw {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.ymoon h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--primary-light);
}
.ymoon h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 18px 0 8px;
  color: var(--text-main);
}
.ymoon p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}
.ymoon ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 12px;
}
.ymoon ul li {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 6px;
}

/* =============================================
   404 页面
   ============================================= */
.page-404 {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}
.page-404 .error-code {
  font-size: clamp(4rem, 15vw, 9rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}
.page-404 h1 {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 12px;
}
.page-404 p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 32px;
  max-width: 480px;
}
.page-404 .btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* =============================================
   响应式补充
   ============================================= */
@media (max-width: 768px) {
  .tiktok-grid { grid-template-columns: repeat(3, 1fr); }
  .channel-grid { grid-template-columns: repeat(2, 1fr); }
  .entertainment-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
  .footer-bottom-right { flex-wrap: wrap; gap: 10px; }
  #nav-search-bar { margin-top: 68px; }
}
@media (max-width: 480px) {
  .tiktok-grid { grid-template-columns: repeat(2, 1fr); }
  .channel-grid { grid-template-columns: 1fr 1fr; }
  .e8x8zv1 { font-size: 0.7rem; }
}