/* =============================================
   麻豆 - 主样式文件
   Brand: 麻豆 | Domain: pirquxdw.cn
   ============================================= */

/* ---- CSS变量 ---- */
:root {
  --color-primary: #7c3aed;
  --color-primary-dark: #5b21b6;
  --color-secondary: #ec4899;
  --color-accent: #06b6d4;
  --color-bg: #0f0a1e;
  --color-bg2: #1a1033;
  --color-bg3: #241848;
  --color-card: #1e1540;
  --color-card2: #2a1f5a;
  --color-text: #e2d9f3;
  --color-text-muted: #9d8ec7;
  --color-border: #3d2f7a;
  --color-gold: #f59e0b;
  --gradient-main: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
  --gradient-dark: linear-gradient(135deg, #1a1033 0%, #0f0a1e 100%);
  --gradient-card: linear-gradient(145deg, #1e1540 0%, #2a1f5a 100%);
  --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.4);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --font-main: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', sans-serif;
}

/* ---- 重置 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
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-primary); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-main); }

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg2); }
::-webkit-scrollbar-thumb { background: var(--color-primary); border-radius: 3px; }

/* ---- 通用工具类 ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }
.section-sm { padding: 48px 0; }
.text-center { text-align: center; }
.text-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.badge-primary { background: rgba(124,58,237,0.2); color: var(--color-primary); border: 1px solid rgba(124,58,237,0.4); }
.badge-secondary { background: rgba(236,72,153,0.2); color: var(--color-secondary); border: 1px solid rgba(236,72,153,0.4); }
.badge-accent { background: rgba(6,182,212,0.2); color: var(--color-accent); border: 1px solid rgba(6,182,212,0.4); }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 4px 15px rgba(124,58,237,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(124,58,237,0.5); color: #fff; }
.btn-outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-sm { padding: 8px 18px; font-size: 13px; }

/* ---- 章节标题 ---- */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-header p {
  color: var(--color-text-muted);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}
.divider {
  width: 60px;
  height: 4px;
  background: var(--gradient-main);
  border-radius: 2px;
  margin: 16px auto 0;
}

/* ---- 顶部公告栏 ---- */
.top-bar {
  background: var(--gradient-main);
  padding: 8px 0;
  font-size: 13px;
  text-align: center;
  color: #fff;
  position: relative;
  z-index: 100;
}
.top-bar a { color: #fff; font-weight: 600; }

/* ---- 导航栏 ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(15, 10, 30, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 0;
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 20px;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.navbar-brand .site-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
}
.navbar-brand .brand-name {
  font-size: 22px;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-menu a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  white-space: nowrap;
  transition: var(--transition);
}
.nav-menu a:hover, .nav-menu a.active {
  color: #fff;
  background: rgba(124,58,237,0.2);
}
.nav-search {
  display: flex;
  align-items: center;
  background: var(--color-bg3);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  padding: 6px 16px;
  gap: 8px;
  min-width: 180px;
}
.nav-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: 14px;
  width: 100%;
  font-family: var(--font-main);
}
.nav-search input::placeholder { color: var(--color-text-muted); }
.nav-search button {
  color: var(--color-text-muted);
  font-size: 16px;
  padding: 0;
  line-height: 1;
}
.nav-search button:hover { color: var(--color-secondary); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- Banner区域 ---- */
.hero-banner {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-banner .banner-bg-mio992 {
  position: absolute;
  inset: 0;
  background-image: url('../images/banner_bg.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
  z-index: 0;
}
.hero-banner .banner-overlay-hbn728 {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.6) 0%, rgba(236,72,153,0.3) 50%, rgba(15,10,30,0.8) 100%);
  z-index: 1;
}
.hero-banner .banner-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}
.hero-banner .hero-tag-hte435 {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(124,58,237,0.3);
  border: 1px solid rgba(124,58,237,0.5);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 13px;
  color: #c4b5fd;
  margin-bottom: 20px;
}
.hero-banner h1 {
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  color: #fff;
}
.hero-banner h1 span { color: var(--color-secondary); }
.hero-banner .hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-banner .hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 36px;
}
.hero-stat .num {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
}
.hero-stat .num span { color: var(--color-secondary); }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.6); }
.hero-banner .hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.5);
  font-size: 12px;
  animation: bounce 2s infinite;
}
.hero-scroll .arrow { width: 20px; height: 20px; border-right: 2px solid rgba(255,255,255,0.5); border-bottom: 2px solid rgba(255,255,255,0.5); transform: rotate(45deg); }
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(8px)} }

/* ---- 搜索栏（首页横幅下方） ---- */
.search-bar-section {
  background: var(--color-bg2);
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}
.search-bar-wrap {
  display: flex;
  align-items: center;
  background: var(--color-card);
  border: 2px solid var(--color-border);
  border-radius: 50px;
  padding: 8px 8px 8px 24px;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto;
  transition: var(--transition);
}
.search-bar-wrap:focus-within { border-color: var(--color-primary); box-shadow: var(--shadow-glow); }
.search-bar-wrap input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-size: 16px;
  color: var(--color-text);
  font-family: var(--font-main);
}
.search-bar-wrap input::placeholder { color: var(--color-text-muted); }
.search-bar-wrap .search-btn-mlu849 {
  background: var(--gradient-main);
  color: #fff;
  border-radius: 50px;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.search-bar-wrap .search-btn-mlu849:hover { opacity: 0.9; transform: scale(1.03); }
.search-tags { display: flex; gap: 10px; justify-content: center; margin-top: 12px; flex-wrap: wrap; }
.search-tags span { font-size: 12px; color: var(--color-text-muted); }
.search-tags a { font-size: 13px; color: var(--color-text-muted); padding: 3px 12px; border-radius: 20px; border: 1px solid var(--color-border); transition: var(--transition); }
.search-tags a:hover { border-color: var(--color-secondary); color: var(--color-secondary); }

/* ---- 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-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-glow), var(--shadow-card); border-color: var(--color-primary); }
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-bg3);
}
.video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s 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(0,0,0,0.3);
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 60px;
  height: 60px;
  background: rgba(124,58,237,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  transform: scale(0.8);
  transition: var(--transition);
  box-shadow: 0 0 30px rgba(124,58,237,0.6);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  border-left: 20px solid #fff;
  margin-left: 4px;
}
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
}
.video-info { padding: 14px 16px; }
.video-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  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: 13px;
  color: var(--color-text-muted);
}
.video-stats { display: flex; gap: 12px; }
.video-stats span { display: flex; align-items: center; gap: 4px; }

/* ---- 特色区块 ---- */
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.feature-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transition: var(--transition);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: var(--color-primary); }
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 16px;
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.3);
}
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.feature-card p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }

/* ---- 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(--color-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}
.expert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-glow); border-color: var(--color-primary); }
.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--color-primary);
  box-shadow: 0 0 20px rgba(124,58,237,0.4);
}
.expert-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.expert-role { font-size: 13px; color: var(--color-secondary); margin-bottom: 12px; }
.expert-desc { font-size: 13px; color: var(--color-text-muted); margin-bottom: 16px; line-height: 1.6; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 16px; }
.expert-btns { display: flex; gap: 8px; justify-content: center; }

/* ---- 评价区 ---- */
.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(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.review-card:hover { border-color: var(--color-primary); transform: translateY(-3px); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-user h4 { font-size: 15px; font-weight: 600; color: #fff; }
.review-user span { font-size: 12px; color: var(--color-text-muted); }
.review-stars { color: var(--color-gold); font-size: 14px; margin-bottom: 10px; }
.review-text { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }
.review-tag { margin-top: 12px; }

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--color-primary); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  gap: 12px;
}
.faq-question .q-icon { color: var(--color-primary); font-size: 18px; font-weight: 800; flex-shrink: 0; }
.faq-question .arrow { color: var(--color-text-muted); transition: var(--transition); flex-shrink: 0; }
.faq-item.open .faq-question .arrow { transform: rotate(180deg); color: var(--color-primary); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 18px; }

/* ---- 合作品牌 ---- */
.partners-grid { display: flex; flex-wrap: wrap; gap: 20px; justify-content: center; align-items: center; }
.partner-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 28px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-muted);
  transition: var(--transition);
  min-width: 120px;
  text-align: center;
}
.partner-item:hover { border-color: var(--color-primary); color: #fff; background: var(--color-card2); }

/* ---- 统计数据 ---- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  padding: 48px 0;
}
.stat-item { text-align: center; }
.stat-item .num {
  font-size: 42px;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-item .desc { font-size: 14px; color: var(--color-text-muted); }

/* ---- 分享按钮 ---- */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-bar .share-label { font-size: 14px; color: var(--color-text-muted); }
.share-btn-yvp421 {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: var(--transition);
}
.share-btn-yvp421:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(124,58,237,0.1); }
.share-btn-yvp421.wechat:hover { border-color: #07c160; color: #07c160; background: rgba(7,193,96,0.1); }
.share-btn-yvp421.weibo:hover { border-color: #e6162d; color: #e6162d; background: rgba(230,22,45,0.1); }
.share-btn-yvp421.douyin:hover { border-color: #fe2c55; color: #fe2c55; background: rgba(254,44,85,0.1); }
.share-btn-yvp421.bilibili:hover { border-color: #00a1d6; color: #00a1d6; background: rgba(0,161,214,0.1); }

/* ---- 面包屑 ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  padding: 16px 0;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-secondary); }
.breadcrumb .sep { color: var(--color-border); }
.breadcrumb .current { color: var(--color-text); }

/* ---- 页脚 ---- */
.footer {
  background: var(--color-bg2);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .logo-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand .site-logo { width: 44px; height: 44px; border-radius: 10px; }
.footer-brand .brand-name { font-size: 22px; font-weight: 800; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer-brand p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 20px; }
.footer-qr-xdw122 { display: flex; gap: 20px; }
.footer-qr-xdw122-item { text-align: center; }
.footer-qr-xdw122-item .qr-box-jhf505 {
  width: 80px;
  height: 80px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 6px;
}
.footer-qr-xdw122-item span { font-size: 11px; color: var(--color-text-muted); }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: var(--color-text-muted); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--color-secondary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 13px; color: var(--color-text-muted); }
.footer-bottom a { color: var(--color-text-muted); }
.footer-bottom a:hover { color: var(--color-secondary); }
.footer-links { display: flex; gap: 16px; }

/* ---- 联系页 ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.contact-info-item { display: flex; gap: 16px; margin-bottom: 24px; align-items: flex-start; }
.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.contact-info-item h4 { font-size: 14px; color: var(--color-text-muted); margin-bottom: 4px; }
.contact-info-item p { font-size: 16px; color: #fff; font-weight: 600; }

/* ---- 关于页 ---- */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-glow); }
.about-text h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 800; margin-bottom: 20px; }
.about-text p { font-size: 15px; color: var(--color-text-muted); line-height: 1.8; margin-bottom: 16px; }
.about-list { margin: 20px 0; }
.about-list li { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--color-text); margin-bottom: 12px; }
.about-list li::before { content: '✦'; color: var(--color-secondary); flex-shrink: 0; }

/* ---- 内页 Hero ---- */
.page-hero {
  background: var(--gradient-dark);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero h1 { font-size: clamp(28px, 4vw, 48px); font-weight: 900; margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: var(--color-text-muted); max-width: 600px; }

/* ---- AI赋能区 ---- */
.ai-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ai-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.ai-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transition: var(--transition);
}
.ai-card:hover::after { transform: scaleX(1); }
.ai-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.ai-icon { font-size: 48px; margin-bottom: 16px; }
.ai-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.ai-card p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }

/* ---- 社区频道 ---- */
.channels-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.channel-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.channel-card:hover { transform: translateY(-4px); border-color: var(--color-secondary); box-shadow: 0 0 20px rgba(236,72,153,0.3); }
.channel-emoji { font-size: 48px; margin-bottom: 12px; }
.channel-card h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.channel-card p { font-size: 13px; color: var(--color-text-muted); }
.channel-count { font-size: 12px; color: var(--color-secondary); margin-top: 8px; font-weight: 600; }

/* ---- 加入指南 ---- */
.join-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; }
.step-card {
  text-align: center;
  padding: 24px 16px;
  position: relative;
}
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-main);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 0 20px rgba(124,58,237,0.4);
}
.step-card h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.step-card p { font-size: 13px; color: var(--color-text-muted); }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .ai-features { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .nav-menu.open { display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: rgba(15,10,30,0.98); padding: 16px; border-bottom: 1px solid var(--color-border); z-index: 998; }
  .nav-search { display: none; }
  .hamburger { display: flex; }
  .hero-banner { min-height: 480px; }
  .hero-banner .hero-stats { gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .ai-features { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .section { padding: 48px 0; }
}
@media (max-width: 480px) {
  .hero-banner h1 { font-size: 28px; }
  .hero-banner .hero-btns { flex-direction: column; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
}

/* ---- 动画 ---- */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.6} }
.animate-fade-up { animation: fadeInUp 0.6s ease forwards; }
.live-dot-siw720 { display: inline-block; width: 8px; height: 8px; background: #ef4444; border-radius: 50%; animation: pulse 1.5s infinite; }

/* ---- 视频模态框 ---- */
.modal-overlay-mns202 {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.modal-overlay-mns202.open { opacity: 1; pointer-events: all; }
.modal-box-dpp250 {
  background: var(--color-bg2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  overflow: hidden;
  transform: scale(0.9);
  transition: var(--transition);
}
.modal-overlay-mns202.open .modal-box-dpp250 { transform: scale(1); }
.modal-header-dcr197 { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--color-border); }
.modal-header-dcr197 h3 { font-size: 16px; font-weight: 700; color: #fff; }
.modal-close-rbi991 { color: var(--color-text-muted); font-size: 22px; cursor: pointer; transition: var(--transition); }
.modal-close-rbi991:hover { color: var(--color-secondary); }
.modal-video-wlr559 { aspect-ratio: 16/9; background: #000; position: relative; }
.modal-video-wlr559 video { width: 100%; height: 100%; }
.modal-video-wlr559 .video-placeholder-bgh781 {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: var(--color-bg3);
}
.modal-video-wlr559 .video-placeholder-bgh781 .big-play-sxf451 {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 0 40px rgba(124,58,237,0.5);
  transition: var(--transition);
}
.modal-video-wlr559 .video-placeholder-bgh781 .big-play-sxf451:hover { transform: scale(1.1); }
.modal-video-wlr559 .video-placeholder-bgh781 .big-play-sxf451::after { content:''; width:0; height:0; border-top:16px solid transparent; border-bottom:16px solid transparent; border-left:26px solid #fff; margin-left:6px; }
.modal-video-wlr559 .video-placeholder-bgh781 p { color: var(--color-text-muted); font-size: 14px; }
.modal-info-tub812 { padding: 16px 20px; }
.modal-info-tub812 h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.modal-info-tub812 p { font-size: 13px; color: var(--color-text-muted); }

/* ---- H5 video 悬停样式 ---- */
.hover-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
  pointer-events: none;
}
.video-card:hover .hover-video { opacity: 0.7; }
.video-thumb img { position: relative; z-index: 0; }
.video-play-btn { z-index: 2; }
.badge.video-tag { z-index: 3; }
.video-duration { z-index: 3; }

/* ---- 面包屑 BreadcrumbList ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-secondary); }
.breadcrumb .sep { color: var(--color-border); }
.breadcrumb .current { color: var(--color-text); }

/* ---- 搜索栏 ---- */
.search-bar-section {
  background: var(--color-bg2);
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
}
.search-bar-wrap {
  display: flex;
  gap: 0;
  max-width: 600px;
  margin: 0 auto 12px;
}
.search-bar-wrap input {
  flex: 1;
  padding: 12px 20px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-right: none;
  border-radius: var(--radius) 0 0 var(--radius);
  color: var(--color-text);
  font-size: 15px;
  outline: none;
}
.search-bar-wrap input:focus { border-color: var(--color-primary); }
.search-btn-mlu849 {
  padding: 12px 24px;
  background: var(--gradient-main);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer;
  border: none;
  white-space: nowrap;
}
.search-tags {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
}
.search-tags a {
  display: inline-block;
  margin: 0 6px;
  color: var(--color-accent);
  font-size: 13px;
}
.search-tags a:hover { color: var(--color-secondary); }

/* ---- 关于页面 ---- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 768px) { .about-intro { grid-template-columns: 1fr; } }
.about-img img { border-radius: var(--radius-lg); width: 100%; object-fit: cover; max-height: 400px; }
.about-text h2 { font-size: 28px; font-weight: 800; margin-bottom: 16px; color: #fff; }
.about-text p { color: var(--color-text-muted); margin-bottom: 12px; line-height: 1.8; }
.about-list { margin: 16px 0; padding-left: 0; }
.about-list li { padding: 8px 0; color: var(--color-text); border-bottom: 1px solid var(--color-border); font-size: 14px; }
.about-list li::before { content: '✓ '; color: var(--color-accent); font-weight: 700; }

/* ---- 联系页面 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}
.contact-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.contact-info-item h4 { font-size: 13px; color: var(--color-text-muted); margin-bottom: 4px; }
.contact-info-item p { font-size: 15px; color: var(--color-text); }

/* ---- 加入步骤 ---- */
.join-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .join-steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .join-steps { grid-template-columns: 1fr; } }
.step-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}
.step-card:hover { border-color: var(--color-primary); transform: translateY(-4px); }
.step-num {
  width: 48px;
  height: 48px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 16px;
}
.step-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: #fff; }
.step-card p { font-size: 13px; color: var(--color-text-muted); line-height: 1.7; }

/* ---- AI功能卡片 ---- */
.ai-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .ai-features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .ai-features { grid-template-columns: 1fr; } }
.ai-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.ai-card:hover { border-color: var(--color-accent); transform: translateY(-4px); box-shadow: 0 0 20px rgba(6,182,212,0.2); }
.ai-icon { font-size: 36px; margin-bottom: 16px; }
.ai-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.ai-card p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }

/* ---- 频道卡片 ---- */
.channels-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .channels-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .channels-grid { grid-template-columns: 1fr; } }
.channel-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: var(--transition);
}
.channel-card:hover { border-color: var(--color-secondary); transform: translateY(-4px); }
.channel-emoji { font-size: 48px; margin-bottom: 16px; }
.channel-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.channel-card p { font-size: 14px; color: var(--color-text-muted); margin-bottom: 12px; line-height: 1.7; }
.channel-count { font-size: 12px; color: var(--color-accent); font-weight: 600; }

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--color-primary); }
.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  user-select: none;
}
.faq-question .q-icon {
  width: 28px;
  height: 28px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.faq-question span:nth-child(2) { flex: 1; }
.faq-question .arrow { font-size: 12px; color: var(--color-text-muted); transition: transform 0.3s; }
.faq-item.open .faq-question .arrow { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 20px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer { max-height: 200px; padding: 0 20px 18px; }

/* ---- 用户评价 ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (max-width: 768px) { .reviews-grid { grid-template-columns: 1fr; } }
.review-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.review-card:hover { border-color: var(--color-primary); }
.review-header { display: flex; gap: 12px; align-items: center; margin-bottom: 12px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-user h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 2px; }
.review-user span { font-size: 12px; color: var(--color-text-muted); }
.review-stars { color: var(--color-gold); font-size: 16px; margin-bottom: 10px; letter-spacing: 2px; }
.review-text { font-size: 14px; color: var(--color-text-muted); line-height: 1.8; margin-bottom: 12px; }
.review-tag { font-size: 11px; }

/* ---- 合作伙伴 ---- */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
@media (max-width: 900px) { .partners-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px) { .partners-grid { grid-template-columns: repeat(2, 1fr); } }
.partner-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: var(--transition);
}
.partner-item:hover { border-color: var(--color-primary); color: var(--color-text); }

/* ---- 分享按钮 ---- */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-label { font-size: 14px; color: var(--color-text-muted); }
.share-btn-yvp421 {
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: var(--color-card);
}
.share-btn-yvp421:hover { transform: translateY(-2px); }
.share-btn-yvp421.wechat:hover { background: #07c160; border-color: #07c160; color: #fff; }
.share-btn-yvp421.weibo:hover { background: #e6162d; border-color: #e6162d; color: #fff; }
.share-btn-yvp421.douyin:hover { background: #000; border-color: #fe2c55; color: #fff; }
.share-btn-yvp421.bilibili:hover { background: #00a1d6; border-color: #00a1d6; color: #fff; }

/* ---- 专家卡片 ---- */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}
@media (max-width: 640px) { .experts-grid { grid-template-columns: 1fr; } }
.expert-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}
.expert-card:hover { border-color: var(--color-secondary); transform: translateY(-4px); }
.expert-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--color-primary);
}
.expert-card h3 { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 6px; }
.expert-role { font-size: 13px; color: var(--color-accent); margin-bottom: 12px; }
.expert-desc { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 16px; }
.expert-awards { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 16px; }
.expert-btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---- 数据统计 ---- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
@media (max-width: 768px) { .stats-row { grid-template-columns: repeat(2, 1fr); } }
.stat-item .num {
  font-size: 36px;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.stat-item .desc { font-size: 14px; color: var(--color-text-muted); }

/* ---- 特性卡片 ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .features-grid { grid-template-columns: 1fr; } }
.feature-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.feature-card:hover { border-color: var(--color-primary); transform: translateY(-4px); }
.feature-icon { font-size: 36px; margin-bottom: 16px; }
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.feature-card p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }

/* ---- 页面Hero ---- */
.page-hero {
  background: var(--gradient-dark);
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--color-border);
}
.page-hero h1 { font-size: 36px; font-weight: 900; margin-bottom: 12px; color: #fff; }
.page-hero p { font-size: 16px; color: var(--color-text-muted); max-width: 600px; }

/* ---- 视频信息 ---- */
.video-info { padding: 16px; }
.video-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 10px; line-height: 1.5; }
.video-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--color-text-muted); }
.video-stats { display: flex; gap: 12px; }
.video-tag { position: absolute; top: 10px; left: 10px; font-size: 11px; }
.video-duration { position: absolute; bottom: 10px; right: 10px; background: rgba(0,0,0,0.7); color: #fff; font-size: 12px; padding: 2px 8px; border-radius: 4px; }

/* ---- 视频网格 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .video-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .video-grid { grid-template-columns: 1fr; } }
.video-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-glow), var(--shadow-card); border-color: var(--color-primary); }

/* ---- 模态框 ---- */
.modal-overlay-mns202 {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  padding: 20px;
}
.modal-overlay-mns202.open { opacity: 1; pointer-events: all; }
.modal-box-dpp250 {
  background: var(--color-card2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 700px;
  width: 100%;
  overflow: hidden;
  transform: scale(0.9);
  transition: transform 0.3s;
}
.modal-overlay-mns202.open .modal-box-dpp250 { transform: scale(1); }
.modal-header-dcr197 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}
.modal-header-dcr197 h3 { font-size: 16px; font-weight: 700; color: #fff; }
.modal-close-rbi991 { font-size: 24px; cursor: pointer; color: var(--color-text-muted); line-height: 1; }
.modal-close-rbi991:hover { color: var(--color-secondary); }
.modal-video-wlr559 {
  aspect-ratio: 16/9;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.video-placeholder-bgh781 { text-align: center; color: var(--color-text-muted); }
.big-play-sxf451 {
  width: 80px;
  height: 80px;
  background: var(--gradient-main);
  border-radius: 50%;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.big-play-sxf451::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-top: 16px solid transparent;
  border-bottom: 16px solid transparent;
  border-left: 28px solid #fff;
  margin-left: 6px;
}
.modal-info-tub812 { padding: 16px 20px; }
.modal-info-tub812 h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.modal-info-tub812 p { font-size: 13px; color: var(--color-text-muted); }

/* ---- 页脚 ---- */
.footer {
  background: var(--color-bg2);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-border);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand .logo-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand p { font-size: 13px; color: var(--color-text-muted); line-height: 1.8; margin-bottom: 20px; }
.footer-qr-xdw122 { display: flex; gap: 20px; }
.footer-qr-xdw122-item { text-align: center; }
.qr-box-jhf505 {
  width: 80px;
  height: 80px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 6px;
  overflow: hidden;
}
.footer-qr-xdw122-item span { font-size: 11px; color: var(--color-text-muted); }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 13px; color: var(--color-text-muted); }
.footer-col ul li a:hover { color: var(--color-secondary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 13px;
  color: var(--color-text-muted);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--color-text-muted); font-size: 13px; }
.footer-links a:hover { color: var(--color-secondary); }

/* ---- 顶部公告 ---- */
.top-bar {
  background: var(--gradient-main);
  padding: 8px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.9);
}
.top-bar a { color: #fff; font-weight: 600; text-decoration: underline; }

/* ---- 导航栏 ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15,10,30,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 0;
}
.navbar-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.site-logo { width: 36px; height: 36px; object-fit: contain; border-radius: 8px; }
.brand-name { font-size: 18px; font-weight: 800; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; white-space: nowrap; }
.nav-menu {
  display: flex;
  gap: 4px;
  flex: 1;
  flex-wrap: nowrap;
  overflow-x: auto;
}
.nav-menu a {
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: 8px;
  white-space: nowrap;
  transition: var(--transition);
}
.nav-menu a:hover, .nav-menu a.active { color: var(--color-text); background: var(--color-card); }
.nav-search {
  display: flex;
  align-items: center;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  padding: 6px 14px;
  gap: 8px;
  flex-shrink: 0;
}
.nav-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: 13px;
  width: 120px;
}
.nav-search button { color: var(--color-text-muted); font-size: 16px; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: var(--transition); }
@media (max-width: 900px) {
  .nav-menu { display: none; position: absolute; top: 64px; left: 0; right: 0; background: rgba(15,10,30,0.98); flex-direction: column; padding: 16px; border-bottom: 1px solid var(--color-border); }
  .nav-menu.open { display: flex; }
  .hamburger { display: flex; }
  .nav-search { display: none; }
}

/* ---- Hero Banner ---- */
.hero-banner {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.banner-bg-mio992 {
  position: absolute;
  inset: 0;
  background: url('../images/banner_bg.jpg') center/cover no-repeat;
  z-index: 0;
}
.banner-overlay-hbn728 {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,10,30,0.92) 0%, rgba(26,16,51,0.85) 100%);
  z-index: 1;
}
.hero-banner .container { position: relative; z-index: 2; }
.banner-content { max-width: 680px; }
.hero-tag-hte435 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.4);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--color-primary);
  margin-bottom: 24px;
}
.live-dot-siw720 {
  width: 8px;
  height: 8px;
  background: var(--color-secondary);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero-banner h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 20px;
}
.hero-desc { font-size: 16px; color: var(--color-text-muted); line-height: 1.8; margin-bottom: 32px; max-width: 560px; }
.hero-stats { display: flex; gap: 32px; margin-bottom: 32px; flex-wrap: wrap; }
.hero-stat .num { font-size: 28px; font-weight: 900; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-stat .label { font-size: 12px; color: var(--color-text-muted); margin-top: 4px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 12px;
}
.hero-scroll .arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  margin: 6px auto 0;
  animation: bounce 1.5s infinite;
}
@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(4px); }
}

/* ---- 章节标题 ---- */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section-header h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 900; color: #fff; margin-bottom: 12px; }
.section-header p { font-size: 15px; color: var(--color-text-muted); max-width: 560px; margin: 0 auto; }
.divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-main);
  border-radius: 2px;
  margin: 16px auto 0;
}

/* ---- 动画 ---- */
.animate-fade-up { animation: fadeUp 0.8s ease forwards; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}