/* =============================================
   网红主播 官方网站 - 主样式文件
   设计风格：新霓虹暗黑美学
   主色：#0D0D0D 强调色：#E8356D #FF7A00
   字体：Noto Sans SC
   ============================================= */

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: #0D0D0D;
  color: #E8E8E8;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: #E8356D; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #1A1A2E; }
::-webkit-scrollbar-thumb { background: #E8356D; border-radius: 3px; }

/* ---------- 通用容器 ---------- */
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 20px; }
.section { padding: 70px 0; }
.section-title {
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
}
.section-title span { color: #E8356D; }
.section-subtitle { color: #aaa; font-size: .95rem; margin-bottom: 40px; }
.divider {
  width: 60px; height: 3px;
  background: linear-gradient(90deg, #E8356D, #FF7A00);
  margin: 12px 0 30px;
  border-radius: 2px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 24px; border-radius: 4px;
  font-size: .9rem; font-weight: 700; cursor: pointer;
  border: none; transition: all .18s cubic-bezier(0.23,1,0.32,1);
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  color: #fff;
}
.btn-primary:hover { filter: brightness(1.15); color: #fff; }
.btn-outline {
  background: transparent;
  border: 1.5px solid #E8356D;
  color: #E8356D;
}
.btn-outline:hover { background: #E8356D; color: #fff; }
.btn-sm { padding: 7px 16px; font-size: .82rem; }

/* ---------- 顶部公告栏 ---------- */
.topbar {
  background: linear-gradient(90deg, #1A0A10, #1A1A2E);
  padding: 6px 0;
  font-size: .8rem;
  color: #aaa;
  border-bottom: 1px solid #2a2a3e;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar a { color: #E8356D; }

/* ---------- 导航栏 ---------- */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(13,13,13,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(232,53,109,.2);
  padding: 0;
}
.navbar .container {
  display: flex; align-items: center;
  height: 64px; gap: 24px;
}
.navbar-brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.4rem; font-weight: 900;
  color: #fff; white-space: nowrap;
}
.navbar-brand .logo-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #fff; font-weight: 900;
  flex-shrink: 0;
}
.navbar-brand .brand-text { color: #fff; }
.navbar-brand .brand-text em { color: #E8356D; font-style: normal; }
.navbar-nav {
  display: flex; align-items: center; gap: 4px;
  flex: 1;
}
.navbar-nav a {
  padding: 6px 12px; border-radius: 4px;
  font-size: .88rem; font-weight: 500; color: #ccc;
  transition: all .18s;
  position: relative;
}
.navbar-nav a::after {
  content: ''; position: absolute; bottom: 0; left: 12px; right: 12px;
  height: 2px; background: #E8356D;
  transform: scaleX(0); transform-origin: left;
  transition: transform .2s cubic-bezier(0.23,1,0.32,1);
}
.navbar-nav a:hover, .navbar-nav a.active { color: #fff; }
.navbar-nav a:hover::after, .navbar-nav a.active::after { transform: scaleX(1); }
.navbar-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }

/* ---------- 搜索框 ---------- */
.search-bar-wrap {
  background: #111122;
  border-bottom: 1px solid #1e1e35;
  padding: 10px 0;
}
.search-bar {
  display: flex; align-items: center;
  background: #1A1A2E; border: 1.5px solid #2a2a4a;
  border-radius: 6px; overflow: hidden;
  max-width: 600px; margin: 0 auto;
  transition: border-color .2s;
}
.search-bar:focus-within { border-color: #E8356D; }
.search-bar input {
  flex: 1; background: transparent; border: none; outline: none;
  color: #E8E8E8; padding: 9px 16px; font-size: .9rem;
  font-family: inherit;
}
.search-bar input::placeholder { color: #666; }
.search-bar button {
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  border: none; color: #fff; padding: 9px 20px;
  cursor: pointer; font-size: .88rem; font-weight: 700;
  transition: filter .18s;
}
.search-bar button:hover { filter: brightness(1.15); }

/* ---------- 移动端菜单按钮 ---------- */
.menu-toggle {
  display: none; background: none; border: none;
  color: #fff; cursor: pointer; padding: 6px;
  flex-direction: column; gap: 5px;
}
.menu-toggle span {
  display: block; width: 22px; height: 2px;
  background: #E8E8E8; border-radius: 2px;
  transition: all .2s;
}

/* ---------- 英雄区 ---------- */
.hero {
  position: relative; overflow: hidden;
  min-height: 520px;
  display: flex; align-items: center;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('../images/hero_banner.jpg');
  background-size: cover; background-position: center;
  filter: brightness(.55);
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(13,13,13,.85) 40%, rgba(232,53,109,.15) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 680px;
}
.hero-tag {
  display: inline-block; background: rgba(232,53,109,.2);
  border: 1px solid #E8356D; color: #E8356D;
  padding: 4px 14px; border-radius: 20px;
  font-size: .8rem; font-weight: 700; margin-bottom: 18px;
}
.hero h1 {
  font-size: 3rem; font-weight: 900; color: #fff;
  line-height: 1.2; margin-bottom: 18px;
}
.hero h1 em { color: #E8356D; font-style: normal; }
.hero p { color: #ccc; font-size: 1.05rem; margin-bottom: 28px; max-width: 520px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 36px; margin-top: 40px;
}
.hero-stat-item { text-align: left; }
.hero-stat-item .num {
  font-size: 1.8rem; font-weight: 900;
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat-item .label { font-size: .78rem; color: #888; }

/* ---------- 视频卡片网格 ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.video-card {
  background: #141420;
  border-radius: 10px; overflow: hidden;
  border: 1px solid #1e1e35;
  transition: transform .2s cubic-bezier(0.23,1,0.32,1), box-shadow .2s;
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 32px rgba(232,53,109,.25);
  border-color: rgba(232,53,109,.4);
}
.video-thumb {
  position: relative; overflow: hidden;
  aspect-ratio: 16/9; background: #1A1A2E;
}
.video-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .3s;
}
.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,.35);
  opacity: 0; transition: opacity .2s;
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 52px; height: 52px; border-radius: 50%;
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  display: flex; align-items: center; justify-content: center;
  transform: scale(0.95); transition: transform .2s;
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon svg { width: 22px; height: 22px; fill: #fff; margin-left: 3px; }
.video-duration {
  position: absolute; bottom: 8px; right: 8px;
  background: rgba(0,0,0,.75); color: #fff;
  padding: 2px 7px; border-radius: 3px; font-size: .75rem;
}
.video-tag {
  position: absolute; top: 8px; left: 8px;
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  color: #fff; padding: 2px 9px; border-radius: 3px;
  font-size: .72rem; font-weight: 700;
}
.video-info { padding: 14px; }
.video-title {
  font-size: .92rem; 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; align-items: center; gap: 12px;
  font-size: .78rem; color: #888;
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-meta svg { width: 13px; height: 13px; fill: #888; }

/* ---------- 分类标签栏 ---------- */
.category-tabs {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 28px;
}
.cat-tab {
  padding: 7px 18px; border-radius: 20px;
  background: #1A1A2E; border: 1px solid #2a2a4a;
  color: #aaa; font-size: .85rem; cursor: pointer;
  transition: all .18s;
}
.cat-tab:hover, .cat-tab.active {
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  border-color: transparent; color: #fff;
}

/* ---------- 专家团队 ---------- */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.expert-card {
  background: #141420; border-radius: 12px;
  border: 1px solid #1e1e35; overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.expert-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(232,53,109,.2);
}
.expert-photo {
  width: 100%; aspect-ratio: 3/4; overflow: hidden;
  background: #1A1A2E;
}
.expert-photo img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .3s;
}
.expert-card:hover .expert-photo img { transform: scale(1.05); }
.expert-info { padding: 16px; }
.expert-name { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.expert-role {
  font-size: .8rem; color: #E8356D; font-weight: 600; margin-bottom: 8px;
}
.expert-desc { font-size: .82rem; color: #999; line-height: 1.5; margin-bottom: 12px; }
.expert-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.expert-tag {
  background: rgba(232,53,109,.12); border: 1px solid rgba(232,53,109,.3);
  color: #E8356D; padding: 2px 9px; border-radius: 3px; font-size: .72rem;
}
.expert-actions { display: flex; gap: 8px; }

/* ---------- 社区功能 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.feature-card {
  background: #141420; border-radius: 10px;
  border: 1px solid #1e1e35; padding: 24px 20px;
  text-align: center; transition: all .2s;
}
.feature-card:hover {
  border-color: rgba(232,53,109,.4);
  box-shadow: 0 4px 20px rgba(232,53,109,.15);
  transform: translateY(-3px);
}
.feature-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(232,53,109,.2), rgba(255,122,0,.2));
  border: 1px solid rgba(232,53,109,.3);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px; font-size: 1.5rem;
}
.feature-title { font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.feature-desc { font-size: .8rem; color: #888; line-height: 1.5; }

/* ---------- AI 赋能 ---------- */
.ai-section { background: #0a0a18; }
.ai-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  align-items: center;
}
.ai-img { border-radius: 12px; overflow: hidden; }
.ai-img img { width: 100%; border-radius: 12px; }
.ai-list { margin-top: 20px; display: flex; flex-direction: column; gap: 14px; }
.ai-item {
  display: flex; gap: 14px; align-items: flex-start;
  background: #141420; border-radius: 8px; padding: 16px;
  border: 1px solid #1e1e35;
}
.ai-item-icon {
  width: 40px; height: 40px; border-radius: 8px; flex-shrink: 0;
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.ai-item-text h4 { font-size: .92rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.ai-item-text p { font-size: .8rem; color: #888; }

/* ---------- 合作品牌 ---------- */
.partners-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}
.partner-item {
  background: #141420; border: 1px solid #1e1e35;
  border-radius: 8px; padding: 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: .88rem; font-weight: 700; color: #888;
  transition: all .18s; min-height: 70px;
}
.partner-item:hover {
  border-color: rgba(232,53,109,.4); color: #E8356D;
  box-shadow: 0 2px 12px rgba(232,53,109,.1);
}

/* ---------- 用户评价 ---------- */
.reviews-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.review-card {
  background: #141420; border-radius: 10px;
  border: 1px solid #1e1e35; padding: 22px;
  transition: transform .2s;
}
.review-card:hover { transform: translateY(-3px); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 700; color: #fff; flex-shrink: 0;
}
.review-name { font-size: .92rem; font-weight: 700; color: #fff; }
.review-date { font-size: .75rem; color: #666; }
.review-stars { color: #FF7A00; font-size: .85rem; margin-bottom: 10px; }
.review-text { font-size: .85rem; color: #bbb; line-height: 1.6; }
.review-tag {
  display: inline-block; margin-top: 10px;
  background: rgba(232,53,109,.12); border: 1px solid rgba(232,53,109,.25);
  color: #E8356D; padding: 2px 9px; border-radius: 3px; font-size: .72rem;
}

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #141420; border: 1px solid #1e1e35;
  border-radius: 8px; margin-bottom: 12px; overflow: hidden;
}
.faq-question {
  width: 100%; background: none; border: none;
  color: #fff; text-align: left; padding: 18px 20px;
  font-size: .95rem; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  transition: color .18s; font-family: inherit;
}
.faq-question:hover { color: #E8356D; }
.faq-question .faq-arrow {
  width: 20px; height: 20px; flex-shrink: 0;
  transition: transform .25s; color: #E8356D;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .3s cubic-bezier(0.23,1,0.32,1);
}
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer-inner {
  padding: 0 20px 18px;
  font-size: .88rem; color: #aaa; line-height: 1.7;
}

/* ---------- 联系我们 ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
}
.contact-card {
  background: #141420; border-radius: 12px;
  border: 1px solid #1e1e35; padding: 28px;
}
.contact-card h3 { font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 18px; }
.contact-item {
  display: flex; gap: 12px; align-items: flex-start;
  margin-bottom: 14px; font-size: .88rem; color: #bbb;
}
.contact-item-icon {
  width: 32px; height: 32px; border-radius: 6px; flex-shrink: 0;
  background: rgba(232,53,109,.15); border: 1px solid rgba(232,53,109,.25);
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem;
}
.qr-grid { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-box {
  width: 100px; height: 100px; background: #fff;
  border-radius: 8px; margin: 0 auto 8px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.qr-box svg { width: 80px; height: 80px; }
.qr-label { font-size: .75rem; color: #888; }

/* ---------- 社交分享 ---------- */
.share-bar {
  background: #111122; border-top: 1px solid #1e1e35;
  padding: 14px 0;
}
.share-bar .container {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.share-label { font-size: .85rem; color: #888; }
.share-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.share-btn {
  padding: 6px 14px; border-radius: 4px;
  font-size: .8rem; font-weight: 600; cursor: pointer;
  border: 1px solid; transition: all .18s;
}
.share-btn.wechat { color: #07C160; border-color: #07C160; }
.share-btn.wechat:hover { background: #07C160; color: #fff; }
.share-btn.weibo { color: #E6162D; border-color: #E6162D; }
.share-btn.weibo:hover { background: #E6162D; color: #fff; }
.share-btn.douyin { color: #FF0050; border-color: #FF0050; }
.share-btn.douyin:hover { background: #FF0050; color: #fff; }
.share-btn.bilibili { color: #00A1D6; border-color: #00A1D6; }
.share-btn.bilibili:hover { background: #00A1D6; color: #fff; }

/* ---------- 页脚 ---------- */
.footer {
  background: #080810; border-top: 1px solid #1e1e35;
  padding: 50px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-brand .logo-wrap {
  display: flex; align-items: center; gap: 10px; margin-bottom: 14px;
}
.footer-brand .logo-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #fff; font-weight: 900;
}
.footer-brand .brand-name { font-size: 1.2rem; font-weight: 900; color: #fff; }
.footer-brand .brand-name em { color: #E8356D; font-style: normal; }
.footer-desc { font-size: .82rem; color: #666; line-height: 1.7; margin-bottom: 16px; }
.footer-contact { font-size: .8rem; color: #888; line-height: 1.8; }
.footer-contact a { color: #E8356D; }
.footer-col h4 {
  font-size: .9rem; font-weight: 700; color: #fff;
  margin-bottom: 16px; padding-bottom: 8px;
  border-bottom: 1px solid #1e1e35;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: .82rem; color: #777; transition: color .18s; }
.footer-col ul li a:hover { color: #E8356D; }
.footer-bottom {
  border-top: 1px solid #1e1e35;
  padding: 16px 0;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 10px;
}
.footer-bottom p { font-size: .78rem; color: #555; }
.footer-bottom a { color: #777; }
.footer-bottom a:hover { color: #E8356D; }
.footer-logo-img {
  width: 36px; height: 36px; border-radius: 8px;
  object-fit: cover;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  background: #0a0a18; padding: 12px 0;
  border-bottom: 1px solid #1e1e35;
}
.breadcrumb .container { display: flex; align-items: center; gap: 8px; font-size: .82rem; color: #666; }
.breadcrumb a { color: #888; }
.breadcrumb a:hover { color: #E8356D; }
.breadcrumb .sep { color: #444; }
.breadcrumb .current { color: #E8356D; }

/* ---------- 社区横幅 ---------- */
.community-banner {
  position: relative; overflow: hidden; border-radius: 12px;
  min-height: 260px; display: flex; align-items: center;
  margin-bottom: 40px;
}
.community-banner-bg {
  position: absolute; inset: 0;
  background-image: url('../images/community_banner.jpg');
  background-size: cover; background-position: center;
  filter: brightness(.45);
}
.community-banner-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(13,13,13,.9) 40%, transparent);
}
.community-banner-content {
  position: relative; z-index: 2; padding: 40px;
}
.community-banner-content h2 { font-size: 1.8rem; font-weight: 900; color: #fff; margin-bottom: 10px; }
.community-banner-content p { color: #ccc; margin-bottom: 20px; max-width: 480px; }

/* ---------- 内页 Hero ---------- */
.page-hero {
  background: linear-gradient(135deg, #0a0a18 0%, #1A0A10 100%);
  padding: 50px 0; border-bottom: 1px solid #1e1e35;
}
.page-hero h1 { font-size: 2.2rem; font-weight: 900; color: #fff; margin-bottom: 8px; }
.page-hero h1 em { color: #E8356D; font-style: normal; }
.page-hero p { color: #aaa; font-size: .95rem; }

/* ---------- 标签 ---------- */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 3px;
  font-size: .72rem; font-weight: 700;
}
.badge-hot { background: rgba(232,53,109,.2); color: #E8356D; border: 1px solid rgba(232,53,109,.3); }
.badge-new { background: rgba(255,122,0,.2); color: #FF7A00; border: 1px solid rgba(255,122,0,.3); }
.badge-ai { background: rgba(100,200,255,.15); color: #64C8FF; border: 1px solid rgba(100,200,255,.3); }

/* ---------- 加入指南 ---------- */
.guide-steps {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px; counter-reset: step;
}
.guide-step {
  background: #141420; border-radius: 10px;
  border: 1px solid #1e1e35; padding: 24px 20px;
  position: relative;
}
.guide-step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute; top: -12px; left: 20px;
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, #E8356D, #FF7A00);
  color: #fff; font-size: .8rem; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
}
.guide-step h4 { font-size: .92rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.guide-step p { font-size: .82rem; color: #888; }

/* ---------- 动画 ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeInUp .5s cubic-bezier(0.23,1,0.32,1) both;
}
.delay-1 { animation-delay: .05s; }
.delay-2 { animation-delay: .1s; }
.delay-3 { animation-delay: .15s; }
.delay-4 { animation-delay: .2s; }

/* ---------- 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; }
}
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .navbar-nav { display: none; }
  .navbar-nav.open {
    display: flex; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(13,13,13,.98); padding: 16px;
    border-bottom: 1px solid #1e1e35;
    z-index: 999;
  }
  .menu-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
  .section { padding: 48px 0; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .expert-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 1.6rem; }
  .section-title { font-size: 1.5rem; }
  .video-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- JSON-LD 隐藏 ---------- */
script[type="application/ld+json"] { display: none; }

/* ============================================
   补充样式 v2 - 百度SEO EEAT增强版新增页面所需
   ============================================ */

/* ---------- section 无底部内边距 ---------- */
.section-no-pb { padding-bottom: 0; }

/* ---------- 视频卡片 H5 video 元素 ---------- */
.video-preview {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity .25s;
  z-index: 1;
}
.video-poster {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
}
/* 悬停时显示 video 预览层 */
.video-card:hover .video-preview { opacity: 1; }

/* ---------- 加载更多按钮区 ---------- */
.section-more {
  text-align: center;
  margin-top: 40px;
}

/* ---------- SEO 文本块 ---------- */
.Sg0xE {
  max-width: 900px;
  margin: 0 auto;
}
.Sg0xE h2,
.Sg0xE h3 {
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
}
.Sg0xE p {
  color: #aaa;
  line-height: 1.85;
  margin-bottom: 14px;
  font-size: .95rem;
}
.Sg0xE strong { color: #E8356D; }
.LU5SV {
  color: #888;
  font-size: .88rem;
  margin-top: 20px;
  border-top: 1px solid #1e1e35;
  padding-top: 14px;
}
.LU5SV strong { color: #FF7A00; }

/* ---------- about 页专用 ---------- */
.about-text-col { display: flex; flex-direction: column; justify-content: center; }
.about-para {
  color: #bbb;
  line-height: 1.85;
  margin-bottom: 16px;
  font-size: .95rem;
}
.about-stat-num {
  font-size: 1.5rem !important;
  color: #E8356D !important;
}

/* ---------- 荣誉资质网格 ---------- */
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.award-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #141420;
  border: 1px solid #1e1e35;
  border-radius: 10px;
  padding: 20px;
  transition: border-color .2s, transform .2s;
}
.award-item:hover {
  border-color: rgba(232,53,109,.4);
  transform: translateY(-3px);
}
.award-icon { font-size: 2rem; flex-shrink: 0; }
.award-text h4 {
  font-size: .95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}
.award-text p { font-size: .82rem; color: #888; line-height: 1.6; }

/* ---------- contact 页专用 ---------- */
.contact-strong { color: #fff; }
.contact-small { color: #666; }
.contact-link { color: #E8356D; }
.contact-link:hover { color: #FF7A00; }
.legal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.legal-para {
  color: #888;
  font-size: .85rem;
  line-height: 1.7;
}
.qr-app-icon {
  background: #f5f5f5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

/* ---------- 社区横幅按钮行 ---------- */
.hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

/* ---------- logo 图片 ---------- */
.logo-img-icon {
  border-radius: 8px;
  object-fit: contain;
}
.footer-logo-img {
  object-fit: contain;
  margin-bottom: 12px;
}

/* ---------- 视频卡片 meta 补充 ---------- */
.meta-views, .meta-likes, .meta-author {
  font-size: .78rem;
  color: #888;
}

/* ---------- 响应式补充 ---------- */
@media (max-width: 768px) {
  .awards-grid { grid-template-columns: 1fr; }
  .legal-grid { grid-template-columns: 1fr; }
  .Sg0xE { padding: 0 4px; }
  .hero-btns { gap: 8px; }
}