/* ============================================
   福利姬 - 主样式文件
   Brand: 福利姬 | bddism.cn
   ============================================ */

/* ---- CSS变量 ---- */
:root {
  --primary: #e8336d;
  --primary-dark: #c41f57;
  --primary-light: #ff6b9d;
  --secondary: #ff9ec4;
  --accent: #ff4d8d;
  --bg-dark: #0d0d1a;
  --bg-card: #16162a;
  --bg-section: #111124;
  --text-primary: #ffffff;
  --text-secondary: #c8c8e0;
  --text-muted: #8888aa;
  --border: rgba(232,51,109,0.2);
  --gradient-main: linear-gradient(135deg, #e8336d 0%, #ff6b9d 50%, #c41f57 100%);
  --gradient-hero: linear-gradient(135deg, #0d0d1a 0%, #1a0a2e 50%, #0d0d1a 100%);
  --shadow: 0 8px 32px rgba(232,51,109,0.25);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.4);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
}

/* ---- 全局重置 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
ul { 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; }

/* ---- 顶部公告条 ---- */
.top-bar {
  background: var(--gradient-main);
  text-align: center;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.top-bar a { color: #fff; }

/* ---- 导航栏 ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,13,26,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.navbar-brand img.site-favicon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  object-fit: cover;
}
.navbar-brand img.site-logo {
  height: 40px;
  width: auto;
}
.navbar-brand .brand-text {
  font-size: 20px;
  font-weight: 700;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.navbar-nav a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
}
.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--primary-light);
  background: rgba(232,51,109,0.12);
}
.navbar-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;
}
.navbar-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 13px;
  width: 100%;
}
.navbar-search input::placeholder { color: var(--text-muted); }
.navbar-search button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  padding: 0;
  transition: var(--transition);
}
.navbar-search button:hover { color: var(--primary-light); }
.navbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.btn-login {
  padding: 7px 18px;
  border: 1px solid var(--primary);
  border-radius: 20px;
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
}
.btn-login:hover { background: var(--primary); color: #fff; }
.btn-register {
  padding: 7px 18px;
  background: var(--gradient-main);
  border-radius: 20px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(232,51,109,0.35);
}
.btn-register:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(232,51,109,0.5); color: #fff; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- 英雄区 ---- */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--gradient-hero);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  filter: blur(1px);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,13,26,0.85) 0%, rgba(26,10,46,0.7) 50%, rgba(13,13,26,0.9) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(232,51,109,0.15);
  border: 1px solid rgba(232,51,109,0.4);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 12px;
  color: var(--secondary);
  margin-bottom: 20px;
}
.hero-badge::before { content: "●"; color: var(--primary); font-size: 8px; }
.hero h1 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero h1 .brand { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 480px;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  background: var(--gradient-main);
  border-radius: 28px;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(232,51,109,0.5); color: #fff; }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border: 2px solid var(--primary);
  border-radius: 28px;
  color: var(--primary-light);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-outline:hover { background: rgba(232,51,109,0.12); transform: translateY(-2px); color: var(--primary-light); }
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
}
.hero-stat-item { text-align: center; }
.hero-stat-num {
  font-size: 28px;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.hero-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.hero-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.hero-card img { width: 100%; height: 160px; object-fit: cover; }
.hero-card-info { padding: 12px; }
.hero-card-info h4 { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.hero-card-info span { font-size: 11px; color: var(--text-muted); }
.hero-card.featured { grid-column: span 2; }
.hero-card.featured img { height: 200px; }

/* ---- 通用Section ---- */
.section { padding: 72px 24px; }
.section-alt { background: var(--bg-section); }
.container { max-width: 1280px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(232,51,109,0.1);
  border: 1px solid rgba(232,51,109,0.3);
  border-radius: 16px;
  padding: 4px 14px;
  font-size: 12px;
  color: var(--primary-light);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  margin-bottom: 12px;
}
.section-title .highlight { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-desc { color: var(--text-secondary); font-size: 15px; max-width: 560px; margin: 0 auto; }

/* ---- 视频卡片 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--primary); }
.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: #1a1a2e;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: var(--transition);
  opacity: 0;
}
.video-card:hover .video-play-btn { opacity: 1; background: rgba(0,0,0,0.45); }
.play-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(232,51,109,0.6);
  transform: scale(0.8);
  transition: var(--transition);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon 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: 11px;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--gradient-main);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info { padding: 14px; }
.video-info h3 {
  font-size: 14px;
  font-weight: 600;
  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;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-meta svg { width: 13px; height: 13px; fill: currentColor; }
.video-author { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.video-author-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.video-author-name { font-size: 12px; color: var(--text-muted); }

/* ---- 内容分类Tab ---- */
.category-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.tab-btn {
  padding: 8px 20px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.tab-btn:hover,
.tab-btn.active {
  background: var(--gradient-main);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 12px rgba(232,51,109,0.35);
}

/* ---- 专家卡片 ---- */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}
.expert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--primary); }
.expert-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  border: 3px solid var(--primary);
  overflow: hidden;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 800;
  color: #fff;
}
.expert-avatar img { width: 100%; height: 100%; object-fit: cover; }
.expert-name { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.expert-title { font-size: 12px; color: var(--primary-light); margin-bottom: 10px; }
.expert-desc { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; line-height: 1.6; }
.expert-tags { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-bottom: 16px; }
.expert-tag {
  background: rgba(232,51,109,0.1);
  border: 1px solid rgba(232,51,109,0.25);
  border-radius: 10px;
  padding: 2px 10px;
  font-size: 11px;
  color: var(--primary-light);
}
.expert-btns { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  padding: 6px 14px;
  border-radius: 14px;
  font-size: 12px;
  font-weight: 500;
  transition: var(--transition);
}
.btn-sm-primary { background: var(--gradient-main); color: #fff; }
.btn-sm-primary:hover { box-shadow: 0 4px 12px rgba(232,51,109,0.4); color: #fff; }
.btn-sm-outline { border: 1px solid var(--primary); color: var(--primary-light); }
.btn-sm-outline:hover { background: rgba(232,51,109,0.1); color: var(--primary-light); }

/* ---- 功能特性 ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--primary); box-shadow: var(--shadow); }
.feature-icon {
  width: 56px;
  height: 56px;
  background: rgba(232,51,109,0.12);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 24px;
}
.feature-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ---- 合作品牌 ---- */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}
.partner-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}
.partner-item:hover { border-color: var(--primary); transform: translateY(-3px); }
.partner-logo {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}
.partner-name { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.partner-type { font-size: 11px; color: var(--text-muted); }

/* ---- 评价卡片 ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.review-card:hover { border-color: var(--primary); transform: translateY(-3px); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-user-info { flex: 1; }
.review-name { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.review-date { font-size: 11px; color: var(--text-muted); }
.review-stars { color: #ffd700; font-size: 13px; }
.review-text { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.review-platform {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 11px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  padding: 3px 10px;
  border-radius: 10px;
}

/* ---- 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;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--primary); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  user-select: none;
}
.faq-question:hover { color: var(--primary-light); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(232,51,109,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  color: var(--primary-light);
  font-size: 16px;
  font-weight: 700;
}
.faq-item.open .faq-icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 22px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 22px 18px; }

/* ---- 联系区 ---- */
.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: 20px; font-weight: 700; margin-bottom: 20px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.contact-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(232,51,109,0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-label { font-size: 12px; color: var(--text-muted); margin-bottom: 3px; }
.contact-value { font-size: 14px; font-weight: 500; }
.qrcode-row {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}
.qrcode-item { text-align: center; }
.qrcode-item img {
  width: 120px;
  height: 120px;
  border-radius: 12px;
  border: 2px solid var(--border);
  margin-bottom: 8px;
}
.qrcode-item p { font-size: 12px; color: var(--text-muted); }

/* ---- 社区入口 ---- */
.community-entries {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.community-entry {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.community-entry:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: var(--shadow); }
.entry-icon { font-size: 32px; margin-bottom: 10px; }
.entry-name { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.entry-desc { font-size: 12px; color: var(--text-muted); }

/* ---- 分享按钮 ---- */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.share-label { font-size: 14px; color: var(--text-muted); margin-right: 4px; }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.share-wechat { background: #07c160; color: #fff; }
.share-weibo { background: #e6162d; color: #fff; }
.share-douyin { background: #010101; color: #fff; border: 1px solid #333; }
.share-bilibili { background: #00a1d6; color: #fff; }
.share-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.3); }

/* ---- 页脚 ---- */
.footer {
  background: #080812;
  border-top: 1px solid var(--border);
  padding: 60px 24px 24px;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .brand-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand .brand-logo img { height: 36px; }
.footer-brand .brand-logo span { font-size: 18px; font-weight: 700; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer-brand p { font-size: 13px; color: var(--text-muted); line-height: 1.8; max-width: 280px; }
.footer-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 16px; color: var(--text-primary); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 13px; color: var(--text-muted); transition: 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: gap;
  gap: 16px;
}
.footer-copyright { font-size: 13px; color: var(--text-muted); }
.footer-copyright a { color: var(--text-muted); }
.footer-copyright a:hover { color: var(--primary-light); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 12px; color: var(--text-muted); }
.footer-links a:hover { color: var(--primary-light); }
.update-time { font-size: 12px; color: var(--text-muted); }

/* ---- 直播标签 ---- */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #e8336d;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  animation: pulse 1.5s infinite;
}
.live-badge::before { content: "●"; font-size: 7px; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.6} }

/* ---- 加入指南 ---- */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.step-card:hover { border-color: var(--primary); transform: translateY(-3px); }
.step-num {
  width: 40px;
  height: 40px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 14px;
}
.step-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ---- 统计数据条 ---- */
.stats-bar {
  background: var(--gradient-main);
  padding: 32px 24px;
}
.stats-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat-item .num { font-size: 32px; font-weight: 800; color: #fff; }
.stat-item .label { font-size: 13px; color: rgba(255,255,255,0.8); margin-top: 4px; }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-content { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-bar .container { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .navbar-nav { display: none; }
  .navbar-search { display: none; }
  .hamburger { display: flex; }
  .navbar-actions .btn-login { display: none; }
  .hero { min-height: 480px; }
  .hero h1 { font-size: 28px; }
  .hero-stats { gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: 1fr; }
  .section { padding: 48px 16px; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .stats-bar .container { grid-template-columns: repeat(2, 1fr); }
}

/* ---- 移动端菜单 ---- */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0,0,0,0.8);
}
.mobile-menu.open { display: block; }
.mobile-menu-inner {
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  background: var(--bg-card);
  padding: 24px;
  overflow-y: auto;
}
.mobile-menu-close {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 24px;
}
.mobile-menu-close button {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
}
.mobile-menu-nav { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu-nav a {
  color: var(--text-secondary);
  font-size: 15px;
  padding: 12px 16px;
  border-radius: 8px;
  display: block;
  transition: var(--transition);
}
.mobile-menu-nav a:hover { background: rgba(232,51,109,0.1); color: var(--primary-light); }
.mobile-search {
  margin-top: 20px;
  display: flex;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 8px 16px;
  gap: 8px;
}
.mobile-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 14px;
  width: 100%;
}
.mobile-search button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
}

/* ---- 面包屑 ---- */
.breadcrumb {
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb .sep { color: var(--text-muted); }
.breadcrumb .current { color: var(--primary-light); }

/* ---- 懒加载占位 ---- */
.lazy-placeholder {
  background: linear-gradient(90deg, var(--bg-card) 25%, rgba(232,51,109,0.05) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* ---- 内页Banner ---- */
.page-banner {
  background: var(--gradient-hero);
  padding: 60px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(232,51,109,0.15) 0%, transparent 70%);
}
.page-banner h1 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; position: relative; z-index: 1; }
.page-banner p { color: var(--text-secondary); font-size: 15px; margin-top: 12px; position: relative; z-index: 1; }

/* ---- 通用工具类 ---- */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-8 { gap: 8px; }
.gap-16 { gap: 16px; }
.w-full { width: 100%; }
.hidden { display: none; }