/* =============================================
   糖心 TangXin - 主样式文件
   版本: 1.0.0 | 域名: hmki6w.cn
   ============================================= */

/* CSS变量 - 品牌色彩系统 */
:root {
  --color-primary: #E8507A;
  --color-primary-dark: #C73D62;
  --color-primary-light: #F27A9A;
  --color-secondary: #2D1B69;
  --color-secondary-light: #4A2D9A;
  --color-gold: #F5C842;
  --color-gold-dark: #D4A520;
  --color-bg: #0F0A1E;
  --color-bg-card: #1A1030;
  --color-bg-light: #231540;
  --color-text: #F0EAF8;
  --color-text-muted: #A89CC0;
  --color-border: rgba(232, 80, 122, 0.2);
  --color-white: #FFFFFF;
  --font-main: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 8px 30px rgba(232, 80, 122, 0.3);
  --transition: all 0.3s ease;
}

/* 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: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--color-primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-gold); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-main); }

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

/* =============================================
   顶部导航栏
   ============================================= */
.site-header {
  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 24px;
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.site-logo img.logo-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
}
.site-logo .logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 2px;
}
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.site-nav a:hover, .site-nav a.active {
  color: var(--color-white);
  background: rgba(232, 80, 122, 0.15);
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.btn-join {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}
.btn-join:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(232, 80, 122, 0.5);
  color: var(--color-white);
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* =============================================
   搜索框
   ============================================= */
.search-bar-wrapper {
  background: rgba(26, 16, 48, 0.8);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 24px;
}
.search-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-form {
  flex: 1;
  max-width: 600px;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 30px;
  overflow: hidden;
  transition: var(--transition);
}
.search-form:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(232, 80, 122, 0.15);
}
.search-form input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: 0.95rem;
  padding: 10px 18px;
  font-family: var(--font-main);
}
.search-form input::placeholder { color: var(--color-text-muted); }
.search-form button {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}
.search-form button:hover { background: var(--color-primary-dark); }
.search-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.search-tag {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: 4px 10px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
}
.search-tag:hover {
  color: var(--color-primary-light);
  border-color: var(--color-primary);
}

/* =============================================
   面包屑
   ============================================= */
.breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary-light); }
.breadcrumb span { color: var(--color-text-muted); }

/* =============================================
   Hero Banner
   ============================================= */
.hero-section {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/banner_hero.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.5);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(45, 27, 105, 0.85) 0%, rgba(232, 80, 122, 0.3) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 60px 24px;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(232, 80, 122, 0.2);
  border: 1px solid rgba(232, 80, 122, 0.4);
  color: var(--color-primary-light);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero-title .brand { color: var(--color-primary); }
.hero-title .highlight {
  background: linear-gradient(135deg, var(--color-gold), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  color: var(--color-white);
}
.btn-outline {
  background: transparent;
  color: var(--color-white);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,0.4);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  background: rgba(232, 80, 122, 0.1);
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat .num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-gold);
  display: block;
}
.hero-stat .label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}

/* =============================================
   通用区块
   ============================================= */
.section { padding: 60px 24px; }
.section-inner { max-width: 1280px; margin: 0 auto; }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 12px;
}
.section-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title::before {
  content: '';
  width: 4px;
  height: 24px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-gold));
  border-radius: 2px;
  flex-shrink: 0;
}
.section-title .brand { color: var(--color-primary); }
.section-more {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 4px;
}
.section-more:hover { color: var(--color-primary-light); }
.section-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 28px;
  line-height: 1.8;
  max-width: 800px;
}

/* =============================================
   视频卡片
   ============================================= */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.video-grid-4 { grid-template-columns: repeat(4, 1fr); }
.video-grid-3 { grid-template-columns: repeat(3, 1fr); }
.video-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(232, 80, 122, 0.4);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-bg-light);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  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(232, 80, 122, 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 svg { width: 22px; height: 22px; fill: white; margin-left: 3px; }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: white;
  font-size: 0.78rem;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--color-primary);
  color: white;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}
.video-info { padding: 14px; }
.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  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;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.video-stats { display: flex; align-items: center; gap: 12px; }
.video-stat { display: flex; align-items: center; gap: 4px; }
.video-stat svg { width: 14px; height: 14px; fill: currentColor; }

/* =============================================
   图片卡片
   ============================================= */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.photo-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  aspect-ratio: 3/4;
  cursor: pointer;
}
.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.photo-card:hover img { transform: scale(1.08); }
.photo-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  padding: 20px 12px 12px;
  opacity: 0;
  transition: var(--transition);
}
.photo-card:hover .photo-overlay { opacity: 1; }
.photo-name { font-size: 0.9rem; font-weight: 600; color: white; }

/* =============================================
   专家卡片
   ============================================= */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(232, 80, 122, 0.4);
}
.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--color-primary);
}
.expert-name { font-size: 1.1rem; font-weight: 700; color: var(--color-white); margin-bottom: 4px; }
.expert-role {
  font-size: 0.85rem;
  color: var(--color-primary-light);
  margin-bottom: 12px;
}
.expert-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 16px; }
.award-tag {
  font-size: 0.75rem;
  background: rgba(245, 200, 66, 0.15);
  color: var(--color-gold);
  border: 1px solid rgba(245, 200, 66, 0.3);
  padding: 3px 8px;
  border-radius: 4px;
}
.expert-actions { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  font-size: 0.82rem;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: var(--transition);
}
.btn-sm-primary {
  background: var(--color-primary);
  color: white;
}
.btn-sm-primary:hover { background: var(--color-primary-dark); color: white; }
.btn-sm-outline {
  border: 1px solid var(--color-primary);
  color: var(--color-primary-light);
}
.btn-sm-outline:hover { background: rgba(232, 80, 122, 0.1); color: var(--color-primary-light); }

/* =============================================
   评论区
   ============================================= */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.review-card:hover { border-color: rgba(232, 80, 122, 0.3); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}
.review-user { flex: 1; }
.review-name { font-size: 0.95rem; font-weight: 600; color: var(--color-white); }
.review-date { font-size: 0.78rem; color: var(--color-text-muted); }
.review-stars { display: flex; gap: 2px; }
.star { color: var(--color-gold); font-size: 0.9rem; }
.review-content {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.review-tags { display: flex; gap: 6px; margin-top: 12px; flex-wrap: wrap; }
.review-tag {
  font-size: 0.75rem;
  background: rgba(232, 80, 122, 0.1);
  color: var(--color-primary-light);
  border: 1px solid rgba(232, 80, 122, 0.2);
  padding: 3px 8px;
  border-radius: 4px;
}

/* =============================================
   FAQ
   ============================================= */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.faq-question {
  padding: 18px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  transition: var(--transition);
}
.faq-question:hover { color: var(--color-primary-light); }
.faq-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(232, 80, 122, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  color: var(--color-primary);
  transition: var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--color-primary); color: white; }
.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 20px 18px;
}
.faq-answer p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* =============================================
   合作品牌
   ============================================= */
.partners-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.partner-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: var(--transition);
}
.partner-item:hover {
  color: var(--color-white);
  border-color: var(--color-primary);
  background: rgba(232, 80, 122, 0.1);
}

/* =============================================
   联系我们
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.contact-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--color-border);
  text-align: center;
  transition: var(--transition);
}
.contact-card:hover { border-color: rgba(232, 80, 122, 0.4); transform: translateY(-2px); }
.contact-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 1.4rem;
}
.contact-label { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 6px; }
.contact-value { font-size: 1rem; font-weight: 600; color: var(--color-white); }
.qrcode-row { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.qrcode-item { text-align: center; }
.qrcode-item img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  margin-bottom: 10px;
}
.qrcode-item p { font-size: 0.85rem; color: var(--color-text-muted); }

/* =============================================
   社交分享
   ============================================= */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-label { font-size: 0.9rem; color: var(--color-text-muted); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}
.share-wechat { background: #07C160; color: white; }
.share-weibo { background: #E6162D; color: white; }
.share-douyin { background: #161823; color: white; border: 1px solid #FE2C55; }
.share-bilibili { background: #00A1D6; color: white; }
.share-btn:hover { transform: translateY(-2px); opacity: 0.9; color: white; }

/* =============================================
   How-To 加入社区
   ============================================= */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  counter-reset: step;
}
.howto-step {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  border: 1px solid var(--color-border);
  position: relative;
  text-align: center;
  transition: var(--transition);
}
.howto-step:hover { border-color: rgba(232, 80, 122, 0.4); }
.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  font-size: 1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.step-title { font-size: 1rem; font-weight: 700; color: var(--color-white); margin-bottom: 8px; }
.step-desc { font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.6; }

/* =============================================
   分类标签栏
   ============================================= */
.category-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.cat-tab {
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: transparent;
}
.cat-tab:hover, .cat-tab.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* =============================================
   页脚
   ============================================= */
.site-footer {
  background: rgba(10, 6, 20, 0.95);
  border-top: 1px solid var(--color-border);
  padding: 48px 24px 24px;
}
.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: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
  display: block;
}
.footer-brand p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}
.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--color-primary-light); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy { font-size: 0.85rem; color: var(--color-text-muted); }
.footer-copy a { color: var(--color-primary-light); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.85rem; color: var(--color-text-muted); }
.footer-links a:hover { color: var(--color-primary-light); }
.footer-logo-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo-wrap img { width: 36px; height: 36px; object-fit: contain; }

/* =============================================
   内页通用
   ============================================= */
.page-hero {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-bg) 100%);
  padding: 60px 24px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 12px;
}
.page-hero h1 .brand { color: var(--color-primary); }
.page-hero p {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}
.page-intro {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  border: 1px solid var(--color-border);
  margin-bottom: 36px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.9;
}
.page-intro strong { color: var(--color-primary-light); }

/* =============================================
   统计数字展示
   ============================================= */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}
.stat-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  border: 1px solid var(--color-border);
}
.stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
  display: block;
}
.stat-label { font-size: 0.82rem; color: var(--color-text-muted); margin-top: 4px; }

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1024px) {
  .video-grid-4 { grid-template-columns: repeat(3, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .site-nav { display: none; }
  .site-nav.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: 999;
  }
  .menu-toggle { display: flex; }
  .video-grid-4, .video-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .hero-stats { gap: 20px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-section { min-height: 400px; }
}
@media (max-width: 480px) {
  .video-grid, .video-grid-4, .video-grid-3 { grid-template-columns: 1fr; }
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-direction: column; }
  .section { padding: 40px 16px; }
}

/* =============================================
   动画
   ============================================= */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.5s ease forwards; }

/* =============================================
   懒加载占位
   ============================================= */
.lazy-placeholder {
  background: linear-gradient(90deg, var(--color-bg-card) 25%, var(--color-bg-light) 50%, var(--color-bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* =============================================
   特色标签
   ============================================= */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
}
.badge-hot { background: rgba(232, 80, 122, 0.2); color: var(--color-primary); border: 1px solid rgba(232, 80, 122, 0.3); }
.badge-new { background: rgba(245, 200, 66, 0.2); color: var(--color-gold); border: 1px solid rgba(245, 200, 66, 0.3); }
.badge-live { background: rgba(255, 60, 60, 0.2); color: #FF6B6B; border: 1px solid rgba(255, 60, 60, 0.3); }
.badge-ai { background: rgba(100, 80, 200, 0.2); color: #A080FF; border: 1px solid rgba(100, 80, 200, 0.3); }

/* =============================================
   通知横幅
   ============================================= */
.notice-bar {
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-secondary));
  padding: 10px 24px;
  text-align: center;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.9);
}
.notice-bar a { color: var(--color-gold); font-weight: 600; }