/* =====================================================
   91 修车改装视频社区 - 主样式表
   品牌色：#FF6B00（橙）#1A1A2E（深蓝黑）#E94560（红橙）
   设计风格：工业赛车风 + 现代科技感
   ===================================================== */

/* ---- 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: #0d0d1a;
  color: #e0e0e0;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: #FF6B00; text-decoration: none; transition: color .25s; }
a:hover { color: #ffaa55; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ---- CSS变量 ---- */
:root {
  --orange: #FF6B00;
  --orange-light: #ff8c33;
  --red: #E94560;
  --dark: #0d0d1a;
  --dark2: #141428;
  --dark3: #1e1e3a;
  --card: #181830;
  --border: rgba(255,107,0,.25);
  --text: #e0e0e0;
  --text-muted: #888;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,.5);
  --glow: 0 0 20px rgba(255,107,0,.3);
}

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

/* =====================================================
   顶部公告条
   ===================================================== */
.top-bar {
  background: linear-gradient(90deg, var(--red), var(--orange));
  color: #fff;
  font-size: .82rem;
  text-align: center;
  padding: 6px 20px;
  letter-spacing: .05em;
}
.top-bar a { color: #fff; font-weight: 700; }

/* =====================================================
   头部导航
   ===================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,13,26,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 20px rgba(0,0,0,.6);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 20px;
}
.logo-wrap { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--orange), var(--red));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; font-weight: 900; color: #fff;
  box-shadow: var(--glow);
  letter-spacing: -1px;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-name { font-size: 1.25rem; font-weight: 900; color: #fff; letter-spacing: .05em; }
.logo-slogan { font-size: .7rem; color: var(--orange); letter-spacing: .1em; }

/* 主导航 */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  color: #ccc;
  font-size: .9rem;
  padding: 8px 14px;
  border-radius: 6px;
  transition: all .2s;
  white-space: nowrap;
  font-weight: 500;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--orange);
  background: rgba(255,107,0,.12);
}

/* 搜索框 */
.search-wrap {
  display: flex; align-items: center;
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  min-width: 200px;
}
.search-wrap input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  padding: 8px 14px;
  font-size: .88rem;
  width: 100%;
}
.search-wrap input::placeholder { color: var(--text-muted); }
.search-wrap button {
  background: var(--orange);
  border: none;
  color: #fff;
  padding: 8px 16px;
  cursor: pointer;
  font-size: .88rem;
  transition: background .2s;
}
.search-wrap button:hover { background: var(--orange-light); }

/* 汉堡菜单 */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s; }

/* =====================================================
   Hero Banner
   ===================================================== */
.hero-banner {
  position: relative;
  min-height: 90vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('/images/banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(.45);
  transform: scale(1.05);
  transition: transform 8s ease;
}
.hero-banner:hover .hero-bg { transform: scale(1); }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(13,13,26,.8) 0%, rgba(233,69,96,.15) 50%, rgba(255,107,0,.1) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 40px 24px;
}
.hcwc0s4 {
  display: inline-block;
  background: rgba(255,107,0,.2);
  border: 1px solid var(--orange);
  color: var(--orange);
  font-size: .8rem;
  padding: 5px 16px;
  border-radius: 20px;
  letter-spacing: .15em;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,.8);
}
.hero-title .highlight { color: var(--orange); }
.hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,.8);
  max-width: 680px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  background: linear-gradient(135deg, var(--orange), var(--red));
  color: #fff;
  padding: 14px 36px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 4px 20px rgba(255,107,0,.4);
  transition: all .3s;
  border: none; cursor: pointer;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,107,0,.6); color: #fff; }
.btn-outline {
  background: transparent;
  color: #fff;
  padding: 13px 36px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid rgba(255,255,255,.5);
  transition: all .3s;
  cursor: pointer;
}
.btn-outline:hover { border-color: var(--orange); color: var(--orange); transform: translateY(-2px); }
.9qqmar19 {
  display: flex; gap: 40px; justify-content: center;
  margin-top: 48px;
  flex-wrap: wrap;
}
.chjnzt7g { text-align: center; }
.qmti0k3 { font-size: 2rem; font-weight: 900; color: var(--orange); display: block; }
.l310yz5y { font-size: .8rem; color: rgba(255,255,255,.6); letter-spacing: .1em; }

/* =====================================================
   通用区块样式
   ===================================================== */
.section { padding: 80px 0; }
.section-alt { background: var(--dark2); }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  background: rgba(255,107,0,.15);
  border: 1px solid var(--border);
  color: var(--orange);
  font-size: .78rem;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: .12em;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 900;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.3;
}
.section-title .accent { color: var(--orange); }
.section-desc { color: var(--text-muted); max-width: 600px; margin: 0 auto; font-size: .95rem; }
.j56sny {
  width: 60px; height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--red));
  margin: 16px auto 0;
  border-radius: 2px;
}

/* =====================================================
   视频卡片
   ===================================================== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all .3s;
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(255,107,0,.2);
  border-color: var(--orange);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #111;
}
.video-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.video-card:hover .video-thumb img { transform: scale(1.08); }
.play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 56px; height: 56px;
  background: rgba(255,107,0,.9);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: all .3s;
  box-shadow: 0 0 30px rgba(255,107,0,.5);
}
.play-btn::after {
  content: '';
  border-left: 18px solid #fff;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  margin-left: 4px;
}
.video-card:hover .play-btn { transform: translate(-50%, -50%) scale(1); }
.video-duration {
  position: absolute;
  bottom: 8px; right: 10px;
  background: rgba(0,0,0,.75);
  color: #fff;
  font-size: .75rem;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 10px; left: 10px;
  background: var(--orange);
  color: #fff;
  font-size: .7rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
}
.video-info { padding: 14px 16px 16px; }
.video-title {
  font-size: .95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex; gap: 14px;
  font-size: .78rem;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* =====================================================
   模块卡片（服务/功能）
   ===================================================== */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.module-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all .3s;
  position: relative;
  overflow: hidden;
}
.module-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--red));
  transform: scaleX(0);
  transition: transform .3s;
}
.module-card:hover::before { transform: scaleX(1); }
.module-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--orange); }
.module-icon {
  width: 52px; height: 52px;
  background: rgba(255,107,0,.15);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 16px;
}
.module-title { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.module-desc { font-size: .85rem; color: var(--text-muted); line-height: 1.6; }

/* =====================================================
   专家团队
   ===================================================== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 28px;
}
.team-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s;
  text-align: center;
}
.team-card:hover { transform: translateY(-6px); box-shadow: var(--glow); border-color: var(--orange); }
.team-photo {
  width: 100%; aspect-ratio: 1;
  object-fit: cover;
  filter: grayscale(20%);
  transition: filter .3s;
}
.team-card:hover .team-photo { filter: grayscale(0); }
.team-info { padding: 18px 16px 20px; }
.team-name { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.team-role { font-size: .8rem; color: var(--orange); margin-bottom: 10px; font-weight: 600; }
.team-bio { font-size: .82rem; color: var(--text-muted); margin-bottom: 14px; line-height: 1.5; }
.team-links { display: flex; gap: 8px; justify-content: center; }
.team-links a {
  background: rgba(255,107,0,.15);
  color: var(--orange);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: .75rem;
  border: 1px solid var(--border);
  transition: all .2s;
}
.team-links a:hover { background: var(--orange); color: #fff; }

/* =====================================================
   合作品牌 Logo墙
   ===================================================== */
.wuu04 {
  display: flex; flex-wrap: wrap;
  gap: 16px; justify-content: center; align-items: center;
}
.fke3n2 {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 24px;
  font-size: .9rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: all .25s;
  letter-spacing: .05em;
}
.fke3n2:hover { border-color: var(--orange); color: var(--orange); background: rgba(255,107,0,.08); }

/* =====================================================
   用户评价
   ===================================================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all .3s;
}
.review-card:hover { border-color: var(--orange); box-shadow: var(--glow); }
.l6u9xh29 { color: #FFD700; font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
.review-text { font-size: .9rem; color: var(--text); line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 12px; }
.9z2sij {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--orange), var(--red));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: #fff; font-size: .9rem;
  flex-shrink: 0;
}
.070wp { font-size: .88rem; font-weight: 700; color: #fff; }
.8qygi { font-size: .75rem; color: var(--text-muted); }

/* =====================================================
   FAQ
   ===================================================== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item.open { border-color: var(--orange); }
.faq-question {
  padding: 18px 24px;
  display: flex; justify-content: space-between; align-items: center;
  cursor: pointer;
  font-weight: 600; color: #fff; font-size: .95rem;
  user-select: none;
}
.faq-question:hover { color: var(--orange); }
.faq-toggle {
  width: 24px; height: 24px;
  background: rgba(255,107,0,.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--orange);
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: transform .3s;
}
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .4s ease, padding .3s;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: .9rem;
  line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 18px; }

/* =====================================================
   联系我们
   ===================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info { }
.contact-info h3 { font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 20px; }
.contact-item {
  display: flex; gap: 14px; align-items: flex-start;
  margin-bottom: 18px;
}
.contact-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  background: rgba(255,107,0,.15);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.contact-label { font-size: .78rem; color: var(--text-muted); margin-bottom: 2px; }
.contact-val { font-size: .95rem; color: #fff; font-weight: 600; }
.fvm0y0 { display: flex; gap: 24px; margin-top: 28px; }
.9d5rk { text-align: center; }
.9d5rk img { width: 110px; height: 110px; border-radius: 8px; border: 2px solid var(--border); }
.g41ger { font-size: .75rem; color: var(--text-muted); margin-top: 6px; }

/* =====================================================
   社区入口
   ===================================================== */
.community-entry {
  background: linear-gradient(135deg, var(--dark3), var(--dark2));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
}
.community-entry h3 { font-size: 1.2rem; font-weight: 800; color: #fff; margin-bottom: 20px; }
.prc32kz { display: flex; flex-direction: column; gap: 12px; }
.4oqpd {
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  transition: all .2s;
}
.4oqpd:hover { border-color: var(--orange); background: rgba(255,107,0,.08); }
.tkz0zmhz { font-size: .9rem; color: #fff; font-weight: 600; }
.ljp6n {
  background: var(--orange);
  color: #fff;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .78rem;
  font-weight: 700;
  transition: background .2s;
}
.ljp6n:hover { background: var(--orange-light); color: #fff; }

/* =====================================================
   分享按钮
   ===================================================== */
.kk12p {
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;
  margin-top: 32px;
}
.share-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 9px 18px;
  border-radius: 24px;
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all .2s;
}
.htq068ze { background: #07C160; color: #fff; }
.9e0mnpi { background: #E6162D; color: #fff; }
.oum5y4 { background: #010101; color: #fff; border: 1px solid #333; }
.a9q0t0 { background: #00A1D6; color: #fff; }
.share-btn:hover { transform: translateY(-2px); opacity: .9; }

/* =====================================================
   页脚
   ===================================================== */
.site-footer {
  background: #080812;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo-wrap { margin-bottom: 16px; }
.footer-brand p { font-size: .85rem; color: var(--text-muted); line-height: 1.7; max-width: 280px; }
.footer-col h4 { font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: .85rem; color: var(--text-muted); transition: color .2s; }
.footer-col ul li a:hover { color: var(--orange); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy { font-size: .82rem; color: var(--text-muted); }
.footer-copy a { color: var(--orange); }
.footer-links { display: flex; gap: 16px; }
.footer-links a { font-size: .82rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--orange); }
.update-time { font-size: .78rem; color: var(--text-muted); }

/* =====================================================
   面包屑
   ===================================================== */
.breadcrumb {
  background: var(--dark2);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.breadcrumb-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 8px;
  font-size: .82rem; color: var(--text-muted);
}
.breadcrumb-inner a { color: var(--text-muted); }
.breadcrumb-inner a:hover { color: var(--orange); }
.breadcrumb-inner .sep { color: var(--border); }
.breadcrumb-inner .current { color: var(--orange); }

/* =====================================================
   内页 Hero
   ===================================================== */
.page-hero {
  background: linear-gradient(135deg, var(--dark2), var(--dark3));
  border-bottom: 1px solid var(--border);
  padding: 60px 0;
  text-align: center;
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 900; color: #fff; margin-bottom: 12px; }
.page-hero p { font-size: 1rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

/* =====================================================
   AI赋能模块
   ===================================================== */
.ai-section {
  background: linear-gradient(135deg, #0a0a1f, #1a0a2e);
  position: relative;
  overflow: hidden;
}
.ai-section::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at center, rgba(100,0,255,.08) 0%, transparent 60%);
  pointer-events: none;
}
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.ai-visual img { border-radius: 16px; box-shadow: 0 0 60px rgba(100,0,255,.3); }
.ai-content h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 900; color: #fff; margin-bottom: 20px; }
.ai-features { display: flex; flex-direction: column; gap: 16px; margin-top: 24px; }
.ai-feature {
  display: flex; gap: 14px; align-items: flex-start;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(100,0,255,.2);
  border-radius: 10px;
  padding: 14px 16px;
}
.ai-feature-icon { font-size: 1.4rem; flex-shrink: 0; }
.ai-feature-title { font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.ai-feature-desc { font-size: .82rem; color: var(--text-muted); }

/* =====================================================
   How-To 加入社区
   ===================================================== */
.7qfy9 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
  counter-reset: step;
}
.de4ti {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  position: relative;
  transition: all .3s;
}
.de4ti:hover { border-color: var(--orange); transform: translateY(-4px); }
.lkgij {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--orange), var(--red));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; font-weight: 900; color: #fff;
  margin: 0 auto 16px;
}
.k28mdki { font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.5e6bo { font-size: .82rem; color: var(--text-muted); }

/* =====================================================
   响应式
   ===================================================== */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: rgba(13,13,26,.98); padding: 16px; border-bottom: 1px solid var(--border); }
  .main-nav.open { display: flex; }
  .hamburger { display: flex; }
  .search-wrap { display: none; }
  .9qqmar19 { gap: 24px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .video-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 56px 0; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
}

/* =====================================================
   动画
   ===================================================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-orange {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,107,0,.4); }
  50% { box-shadow: 0 0 0 12px rgba(255,107,0,0); }
}
.animate-in { animation: fadeInUp .6s ease forwards; }
.pulse { animation: pulse-orange 2s infinite; }

/* =====================================================
   滚动动画触发
   ===================================================== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* =====================================================
   视频展示区特殊样式
   ===================================================== */
.video-hero-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 16/9;
  cursor: pointer;
  border: 2px solid var(--border);
  transition: border-color .3s;
}
.video-hero-card:hover { border-color: var(--orange); }
.video-hero-card img { width: 100%; height: 100%; object-fit: cover; }
.video-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.8) 0%, transparent 50%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 24px;
}
.video-hero-title { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.video-hero-meta { font-size: .82rem; color: rgba(255,255,255,.7); }
.play-btn-large {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 72px; height: 72px;
  background: rgba(255,107,0,.85);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: all .3s;
  box-shadow: 0 0 40px rgba(255,107,0,.5);
}
.play-btn-large::after {
  content: '';
  border-left: 24px solid #fff;
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  margin-left: 5px;
}
.video-hero-card:hover .play-btn-large { transform: translate(-50%, -50%) scale(1.1); }

/* 标签云 */
.9yi1dy { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag {
  background: rgba(255,107,0,.12);
  border: 1px solid var(--border);
  color: var(--orange);
  font-size: .75rem;
  padding: 4px 12px;
  border-radius: 20px;
  transition: all .2s;
  cursor: pointer;
}
.tag:hover { background: var(--orange); color: #fff; }

/* 数字统计条 */
.doxq68u8 {
  background: linear-gradient(90deg, var(--dark3), var(--dark2));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 32px 0;
}
.lftydo0 {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.h16yyfuo { padding: 16px; }
.h16yyfuo .num { font-size: 2.2rem; font-weight: 900; color: var(--orange); display: block; }
.h16yyfuo .label { font-size: .82rem; color: var(--text-muted); margin-top: 4px; }
@media (max-width: 600px) { .lftydo0 { grid-template-columns: repeat(2, 1fr); } }

/* =====================================================
   About页面两列布局
   ===================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
}

/* =====================================================
   视频弹窗移动端优化
   ===================================================== */
@media (max-width: 768px) {
  #videoModal > div { width: 95%; }
  #videoModal video { border-radius: 8px; }
}

/* =====================================================
   情感话题/生活模块标签云
   ===================================================== */
#lifestyle .9yi1dy { justify-content: flex-start; }