/* =============================================
   无限臀山 - 主样式文件
   品牌色：玫瑰粉 #FF4B7D / 珊瑚橙 #FF8C42
   ============================================= */

/* ---- CSS变量 ---- */
:root {
  --primary: #FF4B7D;
  --primary-dark: #e03568;
  --secondary: #FF8C42;
  --accent: #7C3AED;
  --dark: #0F0F1A;
  --dark2: #1A1A2E;
  --dark3: #16213E;
  --card-bg: #1E1E35;
  --text-main: #F0F0F5;
  --text-muted: #9090AA;
  --border: rgba(255,255,255,0.08);
  --gradient: linear-gradient(135deg, #FF4B7D 0%, #FF8C42 100%);
  --gradient2: linear-gradient(135deg, #7C3AED 0%, #FF4B7D 100%);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(255,75,125,0.15);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- 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', 'Hiragino Sans GB', sans-serif;
  background: var(--dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark2); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* =============================================
   顶部公告栏
   ============================================= */
.top-notice {
  background: var(--gradient);
  text-align: center;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.top-notice a { color: #fff; text-decoration: underline; margin-left: 8px; }

/* =============================================
   头部导航
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 15, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.krok7m3b {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  height: 64px;
  gap: 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-logo img.logo-icon {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 8px;
}
.site-logo img.logo-full {
  height: 32px;
  object-fit: contain;
}
.site-logo .logo-text {
  font-size: 20px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.main-nav a {
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  transition: var(--transition);
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--text-main);
  background: rgba(255,75,125,0.12);
}
.main-nav a.active { color: var(--primary); }

/* 搜索框 */
.19qdzf8 {
  position: relative;
  flex-shrink: 0;
}
.19qdzf8 input {
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 8px 40px 8px 16px;
  color: var(--text-main);
  font-size: 14px;
  width: 200px;
  outline: none;
  transition: var(--transition);
}
.19qdzf8 input::placeholder { color: var(--text-muted); }
.19qdzf8 input:focus {
  border-color: var(--primary);
  background: rgba(255,75,125,0.08);
  width: 240px;
}
.19qdzf8 .lf0lwz {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 15px;
  transition: var(--transition);
}
.19qdzf8 .lf0lwz:hover { color: var(--primary); }

.q8mumu {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.btn-login {
  padding: 7px 18px;
  border-radius: 8px;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-login:hover { background: rgba(255,75,125,0.12); }
.btn-join {
  padding: 7px 18px;
  border-radius: 8px;
  background: var(--gradient);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-join:hover { opacity: 0.88; transform: translateY(-1px); }

/* 汉堡菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* =============================================
   搜索栏（导航下方）
   ============================================= */
.q1jykd3l {
  background: var(--dark2);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.ognhgh {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.qjh3rm2 {
  flex: 1;
  position: relative;
  max-width: 680px;
}
.qjh3rm2 input {
  width: 100%;
  background: rgba(255,255,255,0.06);
  border: 1.5px solid var(--border);
  border-radius: 30px;
  padding: 11px 52px 11px 22px;
  color: var(--text-main);
  font-size: 15px;
  outline: none;
  transition: var(--transition);
}
.qjh3rm2 input:focus {
  border-color: var(--primary);
  background: rgba(255,75,125,0.06);
}
.qjh3rm2 input::placeholder { color: var(--text-muted); }
.qjh3rm2 .45ojyz {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--gradient);
  border: none;
  border-radius: 24px;
  padding: 6px 18px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.qjh3rm2 .45ojyz:hover { opacity: 0.88; }
.l9kfh {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
}
.l9kfh span { font-weight: 600; color: var(--secondary); }
.l9kfh a {
  padding: 3px 10px;
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  color: var(--text-muted);
  transition: var(--transition);
}
.l9kfh a:hover { color: var(--primary); background: rgba(255,75,125,0.1); }

/* =============================================
   通用容器
   ============================================= */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}
.section { padding: 60px 0; }
.section-sm { padding: 40px 0; }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.section-title {
  font-size: 24px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title::before {
  content: '';
  display: block;
  width: 4px;
  height: 24px;
  background: var(--gradient);
  border-radius: 2px;
}
.section-more {
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}
.section-more:hover { color: var(--primary); }

/* =============================================
   按钮
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 15px rgba(255,75,125,0.35);
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255,75,125,0.45); }
.btn-outline {
  border: 1.5px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover { background: rgba(255,75,125,0.1); }
.btn-ghost {
  color: var(--text-muted);
  background: rgba(255,255,255,0.06);
}
.btn-ghost:hover { background: rgba(255,255,255,0.1); color: var(--text-main); }

/* =============================================
   视频卡片
   ============================================= */
.video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.video-grid-3 { grid-template-columns: repeat(3, 1fr); }
.video-grid-5 { grid-template-columns: repeat(5, 1fr); }

.video-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--border);
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(255,75,125,0.3);
}
.video-card:hover .2jgt7vts { opacity: 1; }
.video-card:hover .gq8kw { transform: scale(1.05); }

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--dark3);
}
.video-thumb .gq8kw {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.2jgt7vts {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.584g56p {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,75,125,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  transition: var(--transition);
}
.584g56p:hover { transform: scale(1.1); background: var(--primary); }
.584g56p 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: #fff;
  font-size: 12px;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--gradient);
  color: #fff;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
}
.video-info {
  padding: 12px 14px 14px;
}
.video-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}
.video-author {
  display: flex;
  align-items: center;
  gap: 6px;
}
.1rbfa7 {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}
.video-stats {
  display: flex;
  gap: 10px;
}
.video-stats span {
  display: flex;
  align-items: center;
  gap: 3px;
}

/* =============================================
   Hero 轮播区
   ============================================= */
.hero-section {
  position: relative;
  overflow: hidden;
  min-height: 480px;
}
.hero-slider {
  position: relative;
}
.hero-slide {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15,15,26,0.85) 0%, rgba(15,15,26,0.4) 60%, transparent 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 60px 20px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,75,125,0.2);
  border: 1px solid rgba(255,75,125,0.4);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.hero-title {
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  max-width: 600px;
}
.hero-title .brand { color: var(--primary); }
.hero-desc {
  font-size: 16px;
  color: rgba(240,240,245,0.8);
  max-width: 500px;
  margin-bottom: 28px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
}
.hero-stat-item { text-align: left; }
.hero-stat-num {
  font-size: 28px;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat-label { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

/* 轮播控制 */
.slider-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 5;
}
.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: var(--transition);
}
.slider-dot.active {
  width: 24px;
  background: var(--primary);
}

/* =============================================
   分类标签栏
   ============================================= */
.category-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.category-tabs::-webkit-scrollbar { display: none; }
.cat-tab {
  flex-shrink: 0;
  padding: 7px 18px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  background: rgba(255,255,255,0.06);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}
.cat-tab:hover { color: var(--text-main); background: rgba(255,255,255,0.1); }
.cat-tab.active {
  background: var(--gradient);
  color: #fff;
  font-weight: 700;
}

/* =============================================
   特色模块卡片
   ============================================= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: rgba(255,75,125,0.2); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(255,75,125,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}
.feature-title { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* =============================================
   专家展示
   ============================================= */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.expert-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--transition);
}
.expert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(255,75,125,0.25); }
.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid rgba(255,75,125,0.4);
}
.expert-name { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.expert-role {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}
.expert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 14px;
}
.expert-tag {
  font-size: 12px;
  padding: 3px 10px;
  background: rgba(255,75,125,0.1);
  color: var(--primary);
  border-radius: 10px;
  border: 1px solid rgba(255,75,125,0.2);
}
.expert-desc { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.6; }
.expert-actions { display: flex; gap: 8px; justify-content: center; }
.expert-social { display: flex; gap: 8px; justify-content: center; margin-top: 12px; }
.expert-social a {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.07);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  transition: var(--transition);
}
.expert-social a:hover { background: var(--primary); color: #fff; }

/* =============================================
   用户评价
   ============================================= */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.review-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.review-card:hover { border-color: rgba(255,75,125,0.2); transform: translateY(-2px); }
.review-stars { color: #FFD700; font-size: 14px; margin-bottom: 10px; }
.review-text { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; }
.review-user { display: flex; align-items: center; gap: 10px; }
.review-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 700; color: #fff;
  flex-shrink: 0;
}
.review-name { font-size: 14px; font-weight: 600; }
.review-date { font-size: 12px; color: var(--text-muted); }

/* =============================================
   FAQ
   ============================================= */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: rgba(255,75,125,0.3); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: rgba(255,75,125,0.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  color: var(--primary);
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer {
  display: none;
  padding: 0 22px 18px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}
.faq-item.open .faq-answer { display: block; }

/* =============================================
   合作品牌
   ============================================= */
.partners-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}
.partner-logo {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 28px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
}
.partner-logo:hover { color: var(--primary); border-color: rgba(255,75,125,0.3); }

/* =============================================
   联系我们
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info-item {
  display: flex;
  gap: 14px;
  margin-bottom: 20px;
}
.contact-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(255,75,125,0.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-label { font-size: 13px; color: var(--text-muted); margin-bottom: 2px; }
.contact-value { font-size: 15px; font-weight: 600; }
.qr-row { display: flex; gap: 24px; margin-top: 24px; }
.qr-item { text-align: center; }
.qr-item img { width: 110px; height: 110px; border-radius: 10px; border: 2px solid var(--border); }
.qr-label { font-size: 13px; color: var(--text-muted); margin-top: 8px; }

/* =============================================
   社区入口
   ============================================= */
.community-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.community-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.community-card:hover { transform: translateY(-3px); border-color: rgba(255,75,125,0.3); box-shadow: var(--shadow-card); }
.community-icon { font-size: 32px; margin-bottom: 10px; }
.community-name { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.community-desc { font-size: 13px; color: var(--text-muted); }

/* =============================================
   社交分享
   ============================================= */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-label { font-size: 14px; color: var(--text-muted); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}
.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 { opacity: 0.85; transform: translateY(-1px); }

/* =============================================
   面包屑
   ============================================= */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  padding: 16px 0;
}
.breadcrumb a { color: var(--text-muted); transition: var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: var(--text-main); }

/* =============================================
   分页
   ============================================= */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}
.page-btn {
  width: 38px; height: 38px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  font-weight: 600;
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.page-btn:hover, .page-btn.active {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
}

/* =============================================
   底部
   ============================================= */
.site-footer {
  background: var(--dark2);
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .logo-text {
  font-size: 22px;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 280px;
  margin-bottom: 20px;
}
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.07);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); }
.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--primary); }
.footer-update { font-size: 13px; color: var(--text-muted); }

/* =============================================
   内页 Banner
   ============================================= */
.page-banner {
  background: linear-gradient(135deg, var(--dark2) 0%, var(--dark3) 100%);
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,75,125,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.page-banner h1 {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 8px;
}
.page-banner p { font-size: 15px; color: var(--text-muted); }

/* =============================================
   加载动画
   ============================================= */
.skeleton {
  background: linear-gradient(90deg, var(--card-bg) 25%, rgba(255,255,255,0.05) 50%, var(--card-bg) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius);
}
@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1100px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .video-grid-5 { grid-template-columns: repeat(3, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .expert-grid { grid-template-columns: 1fr 1fr; }
  .community-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--dark2);
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    z-index: 999;
  }
  .menu-toggle { display: flex; }
  .19qdzf8 { display: none; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .video-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .video-grid-5 { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 26px; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .ognhgh { flex-direction: column; align-items: stretch; }
  .l9kfh { display: none; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-direction: column; }
  .section { padding: 40px 0; }
}

/* =============================================
   工具类
   ============================================= */
.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 700;
}
.badge-hot { background: rgba(255,75,125,0.15); color: var(--primary); border: 1px solid rgba(255,75,125,0.3); }
.badge-new { background: rgba(124,58,237,0.15); color: #A78BFA; border: 1px solid rgba(124,58,237,0.3); }
.badge-live { background: rgba(239,68,68,0.15); color: #F87171; border: 1px solid rgba(239,68,68,0.3); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.6} }
.divider {
  height: 1px;
  background: var(--border);
  margin: 40px 0;
}
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.gap-8 { gap: 8px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.hidden { display: none; }

/* =============================================
   直播标记
   ============================================= */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #EF4444;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 1px;
}
.gp21eb {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: pulse 1.2s infinite;
}

/* =============================================
   统计数字展示
   ============================================= */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.stat-card:hover { border-color: rgba(255,75,125,0.3); transform: translateY(-2px); }
.stat-num {
  font-size: 32px;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}
.stat-label { font-size: 14px; color: var(--text-muted); }

/* =============================================
   How-To 步骤
   ============================================= */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  position: relative;
  text-align: center;
}
.step-num {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 900; color: #fff;
  margin: 0 auto 14px;
}
.step-title { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.step-desc { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
@media (max-width: 768px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}

/* =============================================
   顶部公告栏（新版）
   ============================================= */
.pvrm3j {
  background: var(--dark2);
  border-bottom: 1px solid var(--border);
  height: 36px;
  font-size: 12px;
  color: var(--text-muted);
  position: relative;
  z-index: 200;
}
.znarfe {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}
.e40dh93, .dd3h0s { display: flex; align-items: center; gap: 10px; }
.dd3h0s a { color: var(--text-muted); }
.dd3h0s a:hover { color: var(--primary); }
.hcdjxu { color: rgba(255,255,255,0.15); }
.pg8v18jt {
  background: var(--gradient);
  color: #fff !important;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
}

/* =============================================
   Logo（新版）
   ============================================= */
.gh3e2 {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.zixmn6ci {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  object-fit: contain;
}
.edgl8wa {
  height: 36px;
  width: auto;
  object-fit: contain;
}
.67d1u3 {
  font-size: 20px;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

/* =============================================
   搜索框（新版）
   ============================================= */
.19qdzf8 {
  flex: 1;
  max-width: 380px;
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  transition: var(--transition);
}
.19qdzf8:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255,75,125,0.1);
}
.iam1e {
  flex: 1;
  background: none;
  border: none;
  padding: 8px 16px;
  color: var(--text-main);
  font-size: 13px;
  outline: none;
}
.iam1e::placeholder { color: var(--text-muted); }
.lf0lwz {
  padding: 8px 14px;
  color: var(--text-muted);
  transition: var(--transition);
}
.lf0lwz:hover { color: var(--primary); }

/* =============================================
   导航链接（新版）
   ============================================= */
.drpi4 {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  transition: var(--transition);
  position: relative;
}
.drpi4:hover, .nav-link.active {
  color: var(--text-main);
  background: rgba(255,255,255,0.06);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--gradient);
  border-radius: 1px;
}
.sxbog { color: var(--primary) !important; }

/* =============================================
   移动端菜单按钮
   ============================================= */
.oxuk4g8 {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: 6px;
}
.oxuk4g8 span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 1px;
  transition: var(--transition);
}
.1azve9a0 {
  display: none;
  flex-direction: column;
  background: var(--dark2);
  border-top: 1px solid var(--border);
  padding: 8px 0;
}
.mobile-nav.open { display: flex; }
.tyo664ek {
  padding: 12px 20px;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.tyo664ek:hover { color: var(--primary); background: rgba(255,75,125,0.05); }

/* =============================================
   回到顶部按钮
   ============================================= */
#ite8746 {
  position: fixed;
  bottom: 30px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
  z-index: 999;
  box-shadow: 0 4px 15px rgba(255,75,125,0.4);
  text-decoration: none;
}
#ite8746.visible { opacity: 1; pointer-events: auto; }
#back-top:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(255,75,125,0.5); }

@media (max-width: 1024px) {
  .main-nav { display: none; }
  .oxuk4g8 { display: flex; }
  .19qdzf8 { max-width: 260px; }
}
@media (max-width: 768px) {
  .pvrm3j { display: none; }
  .19qdzf8 { display: none; }
}

/* ============ 补充缺失CSS类（EEAT修复版） ============ */
.inner-banner { padding: 64px 0 48px; background: linear-gradient(135deg, #0F0F1A 0%, var(--dark2) 100%); text-align: center; position: relative; overflow: hidden; }
.inner-banner::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(ellipse at center, rgba(255,75,125,0.08) 0%, transparent 60%); pointer-events: none; }
.inner-title { font-size: clamp(26px, 5vw, 40px); font-weight: 900; margin-bottom: 12px; line-height: 1.2; }
.inner-desc { font-size: 15px; color: var(--text-muted); max-width: 640px; margin: 0 auto; line-height: 1.7; }
.faq-q { font-size: 15px; font-weight: 700; color: var(--text-main); padding: 16px 20px 16px 48px; background: var(--card-bg); border-radius: var(--radius) var(--radius) 0 0; border: 1px solid var(--border); border-bottom: none; cursor: pointer; position: relative; }
.faq-q::before { content: 'Q'; position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 24px; height: 24px; background: var(--primary); border-radius: 50%; font-size: 11px; font-weight: 900; color: #fff; display: flex; align-items: center; justify-content: center; }
.faq-a { font-size: 14px; color: var(--text-muted); padding: 14px 20px 14px 48px; background: var(--dark2); border-radius: 0 0 var(--radius) var(--radius); border: 1px solid var(--border); border-top: none; line-height: 1.8; margin-bottom: 12px; position: relative; }
.faq-a::before { content: 'A'; position: absolute; left: 14px; top: 14px; width: 24px; height: 24px; background: rgba(255,75,125,0.15); border: 1px solid rgba(255,75,125,0.3); border-radius: 50%; font-size: 11px; font-weight: 900; color: var(--primary); display: flex; align-items: center; justify-content: center; }
.gh3e2 { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.zixmn6ci { width: 32px; height: 32px; border-radius: 6px; object-fit: contain; }
.edgl8wa { height: 40px; width: auto; object-fit: contain; }
.67d1u3 { font-size: 18px; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.1azve9a0 { display: none; background: var(--dark2); border-top: 1px solid var(--border); padding: 12px 0; }
.mobile-nav.open { display: block; }
.tyo664ek { display: block; padding: 12px 20px; font-size: 15px; color: var(--text-muted); border-bottom: 1px solid var(--border); transition: var(--transition); }
.tyo664ek:hover { color: var(--primary); background: rgba(255,75,125,0.06); }
.breadcrumb { display: flex; align-items: center; gap: 6px; padding: 12px 0; font-size: 13px; color: var(--text-muted); flex-wrap: wrap; }
.breadcrumb a { color: var(--text-muted); transition: var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: var(--text-main); }
@media (max-width: 768px) { .inner-banner { padding: 40px 0 28px; } }

/* ===== 政策卡片（about页编辑规范） ===== */
.policy-card { padding: 20px; background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border); }
.policy-title { font-size: 14px; font-weight: 700; margin-bottom: 8px; color: var(--text-main); }
.policy-desc { font-size: 13px; color: var(--text-muted); line-height: 1.7; }