/* =============================================
   91修车改装社区 - 主样式文件
   域名: lyd6jse.cn
   ============================================= */

/* ---- CSS变量 ---- */
:root {
  --primary: #e8320a;
  --primary-dark: #c02507;
  --secondary: #1a1a2e;
  --accent: #f5a623;
  --bg-dark: #0d0d1a;
  --bg-card: #16213e;
  --bg-light: #f7f8fc;
  --text-main: #1a1a2e;
  --text-light: #f0f0f0;
  --text-muted: #888;
  --border: #2a2a4a;
  --gradient-hero: linear-gradient(135deg, rgba(13,13,26,0.92) 0%, rgba(232,50,10,0.55) 100%);
  --gradient-card: linear-gradient(180deg, rgba(22,33,62,0) 60%, rgba(13,13,26,0.95) 100%);
  --shadow: 0 4px 24px rgba(0,0,0,0.18);
  --radius: 12px;
  --radius-sm: 6px;
  --transition: 0.28s cubic-bezier(.4,0,.2,1);
}

/* ---- 重置 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-light);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
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: #1a1a2e; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* =============================================
   顶部公告栏
   ============================================= */
.ra46z7h {
  background: var(--primary);
  color: #fff;
  text-align: center;
  font-size: 13px;
  padding: 6px 20px;
  letter-spacing: 0.5px;
}
.ra46z7h a { color: #fff; text-decoration: underline; }

/* =============================================
   头部导航
   ============================================= */
.site-header {
  background: var(--secondary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 16px rgba(0,0,0,0.4);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 20px;
}
.yheow {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.um81i {
  width: 48px;
  height: 48px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -1px;
  position: relative;
  overflow: hidden;
}
.um81i::after {
  content: '';
  position: absolute;
  top: -10px;
  right: -10px;
  width: 28px;
  height: 28px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
}
.kzzu2bm3 { color: #fff; }
.kzzu2bm3 strong { display: block; font-size: 20px; font-weight: 800; line-height: 1.1; }
.kzzu2bm3 span { font-size: 11px; color: rgba(255,255,255,0.55); letter-spacing: 1px; }

/* 主导航 */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  color: rgba(255,255,255,0.82);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: #fff;
  background: rgba(232,50,10,0.22);
}
.main-nav a.active { color: var(--primary); }

/* 搜索框 */
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  padding: 6px 16px;
  gap: 8px;
  min-width: 200px;
  transition: var(--transition);
}
.header-search:focus-within {
  background: rgba(255,255,255,0.14);
  border-color: var(--primary);
}
.header-search input {
  background: none;
  border: none;
  outline: none;
  color: #fff;
  font-size: 13px;
  width: 100%;
}
.header-search input::placeholder { color: rgba(255,255,255,0.4); }
.header-search button {
  color: rgba(255,255,255,0.6);
  font-size: 15px;
  transition: var(--transition);
  padding: 0;
}
.header-search button:hover { color: var(--primary); }

/* 汉堡菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

/* =============================================
   搜索栏（导航下方）
   ============================================= */
.search-bar-section {
  background: #fff;
  border-bottom: 1px solid #eee;
  padding: 12px 0;
}
.search-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-bar-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  background: #f5f5f5;
  border: 2px solid transparent;
  border-radius: 28px;
  padding: 8px 20px;
  gap: 10px;
  transition: var(--transition);
}
.search-bar-wrap:focus-within {
  border-color: var(--primary);
  background: #fff;
}
.search-bar-wrap input {
  flex: 1;
  border: none;
  background: none;
  outline: none;
  font-size: 15px;
  color: var(--text-main);
}
.search-bar-wrap input::placeholder { color: #aaa; }
.search-bar-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 24px;
  padding: 10px 28px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.search-bar-btn:hover { background: var(--primary-dark); }
.search-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.search-tag {
  background: #f0f0f0;
  color: #666;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
}
.search-tag:hover { background: var(--primary); color: #fff; }

/* =============================================
   面包屑
   ============================================= */
.breadcrumb {
  background: #fff;
  border-bottom: 1px solid #eee;
  padding: 10px 0;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { color: #ccc; }

/* =============================================
   Hero Banner
   ============================================= */
.hero-section {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scale(1.04);
  transition: transform 8s ease;
}
.hero-section:hover .hero-bg { transform: scale(1.0); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 24px;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(232,50,10,0.2);
  border: 1px solid rgba(232,50,10,0.4);
  color: #ff7a5a;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}
.hero-title {
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.hero-title em { color: var(--primary); font-style: normal; }
.hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.78);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.d3orpck {
  display: flex;
  gap: 40px;
  margin-bottom: 36px;
}
.ig8uq2p { text-align: left; }
.ig8uq2p .num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  display: block;
}
.ig8uq2p .label {
  font-size: 12px;
  color: rgba(255,255,255,0.55);
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  background: var(--primary);
  color: #fff;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 20px rgba(232,50,10,0.4);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(232,50,10,0.5);
}
.btn-outline {
  background: rgba(255,255,255,0.1);
  color: #fff;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.3);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(4px);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}
.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255,255,255,0.5);
  font-size: 12px;
  text-align: center;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* =============================================
   通用区块
   ============================================= */
.section { padding: 72px 0; }
.section-dark { background: var(--secondary); color: var(--text-light); }
.section-gray { background: #f2f4f8; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag {
  display: inline-block;
  background: rgba(232,50,10,0.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
  line-height: 1.25;
}
.section-dark .section-title { color: #fff; }
.section-subtitle {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}
.section-dark .section-subtitle { color: rgba(255,255,255,0.55); }

/* =============================================
   视频卡片
   ============================================= */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.16);
}
.video-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
  background: #111;
}
.video-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.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(0,0,0,0.3);
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 60px;
  height: 60px;
  background: rgba(232,50,10,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(232,50,10,0.5);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon svg { width: 24px; height: 24px; fill: #fff; margin-left: 4px; }
.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.sjtchcx {
  display: flex;
  gap: 16px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid #f0f0f0;
  font-size: 12px;
  color: var(--text-muted);
}
.sjtchcx span { display: flex; align-items: center; gap: 4px; }

/* 大视频卡片 */
.video-card-lg {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.video-card-lg:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.16); }
.video-card-lg .video-thumb { padding-top: 0; height: 100%; min-height: 220px; }
.video-card-lg .video-thumb img { position: static; width: 100%; height: 100%; }
.video-card-lg .video-info { padding: 28px; display: flex; flex-direction: column; justify-content: space-between; }

/* =============================================
   特色模块卡片
   ============================================= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.feature-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  transition: var(--transition);
  border: 1px solid #f0f0f0;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}
.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}
.feature-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}
.feature-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* =============================================
   专家卡片
   ============================================= */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.expert-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border);
}
.expert-card:hover { transform: translateY(-6px); box-shadow: 0 16px 48px rgba(0,0,0,0.3); }
.expert-photo {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.expert-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform var(--transition);
}
.expert-card:hover .expert-photo img { transform: scale(1.05); }
.expert-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
}
.expert-body { padding: 20px; }
.expert-name {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}
.expert-role {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.expert-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 16px;
}
.expert-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.expert-tag {
  background: rgba(232,50,10,0.15);
  color: #ff7a5a;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 12px;
}
.expert-actions { display: flex; gap: 10px; }
.btn-sm {
  flex: 1;
  text-align: center;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-sm-primary {
  background: var(--primary);
  color: #fff;
}
.btn-sm-primary:hover { background: var(--primary-dark); }
.btn-sm-outline {
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.7);
}
.btn-sm-outline:hover { border-color: var(--primary); color: var(--primary); }

/* =============================================
   评价区
   ============================================= */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  border: 1px solid #f0f0f0;
  transition: var(--transition);
  position: relative;
}
.review-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.review-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  right: 24px;
  font-size: 72px;
  color: rgba(232,50,10,0.08);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-stars { color: #f5a623; font-size: 15px; margin-bottom: 12px; }
.review-text {
  font-size: 14px;
  color: #444;
  line-height: 1.8;
  margin-bottom: 20px;
}
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}
.review-name { font-size: 14px; font-weight: 700; color: var(--text-main); }
.review-date { font-size: 12px; color: var(--text-muted); }

/* =============================================
   FAQ
   ============================================= */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid #e8e8e8;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active { border-color: var(--primary); }
.faq-question {
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: #fff;
  transition: var(--transition);
}
.faq-item.active .faq-question { background: rgba(232,50,10,0.04); color: var(--primary); }
.faq-arrow {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #f0f0f0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  font-size: 12px;
}
.faq-item.active .faq-arrow { background: var(--primary); color: #fff; transform: rotate(180deg); }
.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 14px;
  color: #555;
  line-height: 1.8;
  background: #fff;
}
.faq-item.active .faq-answer { max-height: 300px; padding: 0 24px 18px; }

/* =============================================
   合作品牌
   ============================================= */
.partners-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  align-items: center;
}
.ujulr {
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: var(--radius-sm);
  padding: 16px 28px;
  font-size: 15px;
  font-weight: 700;
  color: #666;
  transition: var(--transition);
  min-width: 120px;
  text-align: center;
}
.ujulr:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

/* =============================================
   联系我们
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(232,50,10,0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.contact-value { font-size: 15px; font-weight: 600; color: var(--text-main); }
.qr-codes { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-box {
  width: 100px;
  height: 100px;
  background: #f5f5f5;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
}
.qr-box svg { width: 80px; height: 80px; }
.qr-label { font-size: 12px; color: var(--text-muted); }

/* =============================================
   分享按钮
   ============================================= */
.cv1ic {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-label { font-size: 13px; color: var(--text-muted); }
.s2t36ml6 {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}
.jsbsn4 { background: #07c160; color: #fff; }
.mmhtc { background: #e6162d; color: #fff; }
.qqy6yc { background: #010101; color: #fff; }
.ikj1cok { background: #00a1d6; color: #fff; }
.s2t36ml6:hover { opacity: 0.85; transform: translateY(-2px); }

/* =============================================
   AI赋能区块
   ============================================= */
.ai-section { background: linear-gradient(135deg, #0d0d1a 0%, #1a1a3e 100%); }
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.ai-features { display: flex; flex-direction: column; gap: 20px; }
.ai-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}
.ai-feature-item:hover { border-color: rgba(232,50,10,0.3); background: rgba(232,50,10,0.05); }
.ai-feature-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), #ff7a5a);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.ai-feature-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.ai-feature-desc { font-size: 13px; color: rgba(255,255,255,0.55); line-height: 1.7; }
.ai-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}
.ai-visual img { width: 100%; border-radius: var(--radius); }
.ai-visual-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(13,13,26,0.85);
  border: 1px solid rgba(232,50,10,0.4);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  backdrop-filter: blur(8px);
}
.ai-visual-badge .num { font-size: 24px; font-weight: 800; color: var(--primary); }
.ai-visual-badge .desc { font-size: 12px; color: rgba(255,255,255,0.6); }

/* =============================================
   统计数字
   ============================================= */
.px8crcw { background: var(--primary); }
.mxddpw0j {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.sxdtu1x {
  text-align: center;
  padding: 40px 20px;
  border-right: 1px solid rgba(255,255,255,0.15);
}
.sxdtu1x:last-child { border-right: none; }
.tzwww7m2 {
  font-size: 42px;
  font-weight: 900;
  color: #fff;
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}
.h9a279v { font-size: 13px; color: rgba(255,255,255,0.7); }

/* =============================================
   加入社区
   ============================================= */
.join-section {
  background: linear-gradient(135deg, var(--secondary) 0%, #2a1a3e 100%);
  text-align: center;
  padding: 80px 0;
}
.join-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 48px 0;
  position: relative;
}
.join-steps::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 0;
}
.join-step {
  position: relative;
  z-index: 1;
  text-align: center;
}
.step-num {
  width: 64px;
  height: 64px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 16px;
  box-shadow: 0 4px 20px rgba(232,50,10,0.4);
}
.step-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.step-desc { font-size: 13px; color: rgba(255,255,255,0.5); line-height: 1.6; }

/* =============================================
   页脚
   ============================================= */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.6);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .um81i { margin-bottom: 16px; }
.footer-desc {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255,255,255,0.45);
  margin-bottom: 20px;
}
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition);
  color: rgba(255,255,255,0.5);
}
.social-btn:hover { background: var(--primary); color: #fff; }
.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--primary); }
.f4lbb { color: rgba(255,255,255,0.3); font-size: 12px; }

/* =============================================
   内页样式
   ============================================= */
.page-hero {
  background: linear-gradient(135deg, var(--secondary) 0%, #2a1a3e 100%);
  padding: 60px 0;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.page-hero p { font-size: 15px; color: rgba(255,255,255,0.6); }

/* 侧边栏 */
.content-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
  align-items: start;
}
.sidebar-widget {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.widget-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}
.page-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  background: #fff;
  color: var(--text-main);
  border: 1px solid #e0e0e0;
  cursor: pointer;
}
.page-btn:hover, .page-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .mxddpw0j { grid-template-columns: repeat(2, 1fr); }
  .join-steps { grid-template-columns: repeat(2, 1fr); }
  .join-steps::before { display: none; }
  .content-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .header-search { display: none; }
  .d3orpck { gap: 20px; }
  .hero-section { min-height: 440px; }
  .video-card-lg { grid-template-columns: 1fr; }
  .video-card-lg .video-thumb { height: 200px; }
  .experts-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .mxddpw0j { grid-template-columns: repeat(2, 1fr); }
  .join-steps { grid-template-columns: 1fr 1fr; }
  .search-bar-inner { flex-wrap: wrap; }
  .search-tags { display: none; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .experts-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .mxddpw0j { grid-template-columns: 1fr 1fr; }
  .join-steps { grid-template-columns: 1fr; }
  .d3orpck { flex-wrap: wrap; gap: 16px; }
}

/* =============================================
   移动端菜单
   ============================================= */
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--secondary);
  z-index: 999;
  overflow-y: auto;
  padding: 20px;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}
.mobile-menu a:hover { color: var(--primary); padding-left: 8px; }

/* =============================================
   懒加载占位
   ============================================= */
.lazy-placeholder {
  background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* =============================================
   滚动动画
   ============================================= */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   面包屑导航（百度富媒体摘要）
   ============================================= */
.breadcrumb-nav {
  background: #fff;
  border-bottom: 1px solid #eee;
  padding: 10px 0;
}
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: #888;
  flex-wrap: wrap;
}
.breadcrumb-list a { color: var(--primary); }
.breadcrumb-list a:hover { text-decoration: underline; }
.breadcrumb-list .sep { color: #ccc; }

/* =============================================
   页面Hero（内页）
   ============================================= */
.page-hero {
  padding: 64px 0 56px;
  text-align: center;
  color: #fff;
}
.page-hero-title {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.2;
  letter-spacing: -0.5px;
}
.page-hero-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

/* =============================================
   搜索栏区域（header下方）
   ============================================= */
.search-bar-section {
  background: #fff;
  border-bottom: 1px solid #eee;
  padding: 12px 0;
}
.search-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.search-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f7f8fc;
  border: 1.5px solid #eee;
  border-radius: 24px;
  padding: 8px 18px;
  transition: var(--transition);
}
.search-bar-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232,50,10,0.08);
}
.search-bar-wrap input {
  border: none;
  background: none;
  outline: none;
  font-size: 14px;
  color: var(--text-main);
  width: 320px;
  max-width: 100%;
}
.search-bar-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 20px;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.search-bar-btn:hover { background: var(--primary-dark); }
.search-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.search-tag {
  background: #f0f0f0;
  color: #666;
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
}
.search-tag:hover {
  background: var(--primary);
  color: #fff;
}

/* =============================================
   H5 video 播放器（百度视频收录关键）
   ============================================= */
.video-h5-player {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.video-poster-img {
  transition: transform var(--transition);
}
.video-card:hover .video-poster-img { transform: scale(1.06); }

/* 视频卡片迷你版（侧边栏） */
.video-card-mini {
  cursor: pointer;
  transition: var(--transition);
}
.video-card-mini:hover { background: #fafafa; }

/* =============================================
   视频模态框
   ============================================= */
.video-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.88);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.video-modal.open {
  display: flex;
}
.video-modal-inner {
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  width: 100%;
  max-width: 900px;
  position: relative;
}
.video-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  color: #fff;
  font-size: 18px;
  transition: var(--transition);
}
.video-modal-close:hover { background: var(--primary); }
.video-modal video {
  width: 100%;
  display: block;
  max-height: 80vh;
}

/* =============================================
   视频标签云
   ============================================= */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-item {
  background: #f5f5f5;
  color: #666;
  font-size: 12px;
  padding: 5px 14px;
  border-radius: 14px;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}
.tag-item:hover, .tag-item.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* =============================================
   EEAT 专家卡片增强
   ============================================= */
.expert-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(232,50,10,0.08);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 10px;
  margin-top: 6px;
}
.expert-verified {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #e8f5e9;
  color: #2e7d32;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 10px;
}

/* =============================================
   娱乐专区 / TikTok风格短视频
   ============================================= */
.entertainment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.entertainment-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 9/16;
  cursor: pointer;
  background: #111;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  transition: var(--transition);
}
.entertainment-card:hover { transform: scale(1.03); box-shadow: 0 8px 32px rgba(0,0,0,0.25); }
.entertainment-card video,
.entertainment-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.entertainment-card .card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
}
.entertainment-card .card-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: rgba(232,50,10,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  z-index: 3;
}
.entertainment-card:hover .card-play { opacity: 1; }
.entertainment-card .card-play svg { width: 20px; height: 20px; fill: #fff; margin-left: 3px; }
.entertainment-card .card-title {
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
  z-index: 3;
}
.entertainment-card .card-views {
  color: rgba(255,255,255,0.7);
  font-size: 11px;
  margin-top: 4px;
  z-index: 3;
}
.entertainment-card .card-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  z-index: 3;
}

/* =============================================
   获奖视频专区
   ============================================= */
.award-card {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(232,50,10,0.2);
  transition: var(--transition);
}
.award-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(232,50,10,0.15);
}
.award-badge {
  background: linear-gradient(135deg, #f5a623, #e8320a);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 4px;
  display: inline-block;
}

/* =============================================
   亲密教育科普模块
   ============================================= */
.edu-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  border: 1px solid #eee;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: var(--transition);
}
.edu-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.edu-icon {
  width: 48px;
  height: 48px;
  background: rgba(232,50,10,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 14px;
}

/* =============================================
   移动端响应式增强（百度移动端权重）
   ============================================= */
@media (max-width: 768px) {
  .search-bar-section { display: none; }
  .breadcrumb-nav { padding: 8px 0; }
  .breadcrumb-list { font-size: 12px; }
  .page-hero { padding: 40px 0 32px; }
  .page-hero-title { font-size: 22px; }
  .page-hero-desc { font-size: 13px; }
  .entertainment-grid { grid-template-columns: repeat(2, 1fr); }
  .video-modal-inner { border-radius: 8px; }
  .video-modal video { max-height: 60vh; }
}
@media (max-width: 480px) {
  .entertainment-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .tag-cloud { gap: 6px; }
  .tag-item { font-size: 11px; padding: 4px 10px; }
}

/* =============================================
   LocalBusiness 信任信号条
   ============================================= */
.o3y63sqt {
  background: linear-gradient(90deg, #1a1a2e, #16213e);
  padding: 16px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.u59x3ke {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 32px;
  justify-content: center;
  flex-wrap: wrap;
}
.z61hw7l {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}
.z61hw7l strong { color: #fff; }

/* =============================================
   AggregateRating 星级展示
   ============================================= */
.rating-stars {
  display: inline-flex;
  gap: 2px;
  color: #f5a623;
  font-size: 16px;
}
.rating-score {
  font-size: 28px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
}
.rating-count {
  font-size: 12px;
  color: #888;
}

/* =============================================
   内容布局（侧边栏）
   ============================================= */
.content-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
  align-items: start;
}
@media (max-width: 1024px) {
  .content-layout { grid-template-columns: 1fr; }
}
.sidebar-widget {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: 1px solid #eee;
}
.widget-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}