/* 大象传媒植物视频社区 - 主样式文件 */
/* emfseqgs.cn */

:root {
  --primary: #1a7a3c;
  --primary-dark: #0f5228;
  --primary-light: #2db85a;
  --accent: #f5a623;
  --accent2: #e74c3c;
  --bg: #f0f7f2;
  --bg2: #e8f5ec;
  --white: #ffffff;
  --dark: #1a2a1e;
  --gray: #6b7c72;
  --gray-light: #d4e8da;
  --border: #c3dfc9;
  --shadow: 0 4px 20px rgba(26,122,60,0.12);
  --shadow-hover: 0 8px 32px rgba(26,122,60,0.22);
  --radius: 12px;
  --radius-sm: 6px;
  --transition: all 0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', 'Hiragino Sans GB', sans-serif;
  background: var(--bg);
  color: var(--dark);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== 隐藏干扰标签 ===== */
.dy-noise { display: none !important; }

/* ===== 顶部公告栏 ===== */
.top-bar {
  background: var(--primary-dark);
  color: #b8f5cc;
  font-size: 13px;
  padding: 6px 0;
  text-align: center;
}
.top-bar a { color: var(--accent); text-decoration: none; }

/* ===== 头部导航 ===== */
.site-header {
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.site-logo img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}
.site-logo .logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 1px;
}
.site-logo .logo-sub {
  font-size: 11px;
  color: var(--gray);
  display: block;
  line-height: 1.2;
}

/* 导航菜单 */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  color: var(--dark);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--primary);
  background: var(--bg2);
}
.main-nav .nav-hot {
  position: relative;
}
.main-nav .nav-hot::after {
  content: 'HOT';
  position: absolute;
  top: -4px;
  right: -2px;
  background: var(--accent2);
  color: #fff;
  font-size: 9px;
  padding: 1px 4px;
  border-radius: 3px;
  font-weight: 700;
}

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

/* ===== 搜索框 ===== */
.search-bar-wrap {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.search-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-bar-inner form {
  display: flex;
  flex: 1;
  max-width: 600px;
  margin: 0 auto;
  gap: 0;
}
.search-bar-inner input[type="text"] {
  flex: 1;
  padding: 9px 16px;
  border: 2px solid var(--border);
  border-right: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  font-size: 14px;
  outline: none;
  background: var(--white);
  transition: var(--transition);
}
.search-bar-inner input[type="text"]:focus { border-color: var(--primary); }
.search-bar-inner button[type="submit"] {
  padding: 9px 22px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}
.search-bar-inner button[type="submit"]:hover { background: var(--primary-dark); }

/* ===== 面包屑 ===== */
.breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 10px 20px;
  font-size: 13px;
  color: var(--gray);
}
.breadcrumb a { color: var(--primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 6px; }

/* ===== 容器 ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}
.section { padding: 60px 0; }
.section-alt { background: var(--bg2); }
.section-dark { background: var(--primary-dark); color: #fff; }

/* ===== 标题 ===== */
.section-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 8px;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 4px;
  background: var(--primary-light);
  border-radius: 2px;
  margin-top: 6px;
}
.section-subtitle {
  color: var(--gray);
  font-size: 15px;
  margin-bottom: 36px;
}
.section-header { margin-bottom: 36px; }

/* ===== Banner ===== */
.hero-banner {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--primary-dark);
}
.hero-banner .banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}
.hero-banner .banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,50,20,0.75) 0%, rgba(10,50,20,0.3) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 20px;
  color: #fff;
}
.hero-content h1 {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.hero-content h1 .brand { color: #7eff9e; }
.hero-content .hero-desc {
  font-size: 18px;
  max-width: 600px;
  margin-bottom: 32px;
  opacity: 0.92;
  line-height: 1.8;
}
.hero-content .hero-desc strong { color: var(--accent); }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  background: var(--primary-light);
  color: #fff;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.btn-primary:hover { background: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.7);
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  transition: var(--transition);
}
.btn-outline:hover { background: rgba(255,255,255,0.15); }
.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

/* 统计数字 */
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-item .num {
  font-size: 32px;
  font-weight: 900;
  color: #7eff9e;
  display: block;
}
.stat-item .label { font-size: 13px; opacity: 0.8; }

/* ===== 视频卡片 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: #1a2a1e;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  background: rgba(0,0,0,0.35);
  transition: var(--transition);
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 60px;
  height: 60px;
  background: rgba(255,255,255,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.play-icon svg { width: 24px; height: 24px; fill: var(--primary); margin-left: 4px; }
.video-card:hover .play-icon { transform: scale(1.12); }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 10px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 12px;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
}
.video-info { padding: 14px 16px; }
.video-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  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: 12px;
  color: var(--gray);
  align-items: center;
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-meta svg { width: 13px; height: 13px; fill: var(--gray); }

/* ===== 专家卡片 ===== */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.expert-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}
.expert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--primary-light);
  margin: 0 auto 14px;
  display: block;
}
.expert-name { font-size: 18px; font-weight: 800; color: var(--dark); margin-bottom: 4px; }
.expert-title { font-size: 13px; color: var(--primary); font-weight: 600; margin-bottom: 10px; }
.expert-desc { font-size: 13px; color: var(--gray); line-height: 1.6; margin-bottom: 14px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 14px; }
.award-tag {
  background: var(--bg2);
  color: var(--primary-dark);
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 20px;
  border: 1px solid var(--border);
}
.expert-btns { display: flex; gap: 10px; justify-content: center; }
.btn-ghost {
  padding: 7px 16px;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  border-radius: var(--radius-sm);
  font-size: 13px;
  text-decoration: none;
  transition: var(--transition);
  font-weight: 600;
}
.btn-ghost:hover { background: var(--primary); color: #fff; }

/* ===== 评论卡片 ===== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary-light);
}
.review-stars { color: var(--accent); font-size: 16px; margin-bottom: 10px; }
.review-text { font-size: 14px; color: var(--dark); line-height: 1.7; margin-bottom: 14px; font-style: italic; }
.reviewer { display: flex; align-items: center; gap: 10px; }
.reviewer-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
}
.reviewer-name { font-size: 14px; font-weight: 700; color: var(--dark); }
.reviewer-info { font-size: 12px; color: var(--gray); }

/* ===== FAQ ===== */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-question {
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question .faq-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
  transition: var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 22px 18px; }

/* ===== 合作品牌 ===== */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  align-items: center;
}
.partner-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 16px 28px;
  box-shadow: var(--shadow);
  font-size: 15px;
  font-weight: 700;
  color: var(--gray);
  transition: var(--transition);
  border: 2px solid transparent;
}
.partner-item:hover { color: var(--primary); border-color: var(--primary-light); transform: translateY(-2px); }

/* ===== 联系信息 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.contact-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 22px;
  box-shadow: var(--shadow);
  text-align: center;
}
.contact-icon {
  width: 56px;
  height: 56px;
  background: var(--bg2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 24px;
}
.contact-label { font-size: 13px; color: var(--gray); margin-bottom: 6px; }
.contact-value { font-size: 16px; font-weight: 700; color: var(--dark); }

/* ===== 分享按钮 ===== */
.share-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 20px;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.share-wechat { background: #07c160; color: #fff; }
.share-weibo { background: #e6162d; color: #fff; }
.share-douyin { background: #010101; color: #fff; }
.share-bilibili { background: #00a1d6; color: #fff; }
.share-btn:hover { opacity: 0.88; transform: translateY(-2px); }

/* ===== AI功能模块 ===== */
.ai-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.ai-card {
  background: linear-gradient(135deg, var(--primary-dark) 0%, #0d4a25 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 30px 26px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.ai-card::before {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 120px;
  height: 120px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}
.ai-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.ai-card-icon { font-size: 36px; margin-bottom: 14px; }
.ai-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; color: #7eff9e; }
.ai-card p { font-size: 14px; opacity: 0.85; line-height: 1.7; }

/* ===== 社区功能 ===== */
.community-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 9px 20px;
  border-radius: 24px;
  border: 2px solid var(--border);
  background: var(--white);
  color: var(--gray);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.tab-btn.active, .tab-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== 底部 ===== */
.site-footer {
  background: var(--dark);
  color: #a8c4b0;
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo-text { color: #7eff9e; font-size: 20px; font-weight: 800; }
.footer-brand p { font-size: 13px; line-height: 1.8; margin-top: 12px; opacity: 0.75; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul li a {
  color: #a8c4b0;
  text-decoration: none;
  font-size: 13px;
  transition: var(--transition);
}
.footer-col ul li a:hover { color: #7eff9e; }
.footer-qr { display: flex; gap: 20px; margin-top: 16px; }
.footer-qr-item { text-align: center; }
.footer-qr-item img { width: 90px; height: 90px; border-radius: 8px; border: 2px solid #2a4a30; }
.footer-qr-item p { font-size: 11px; margin-top: 6px; opacity: 0.7; }
.footer-bottom {
  border-top: 1px solid #2a3a2e;
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  opacity: 0.65;
}
.footer-bottom a { color: #7eff9e; text-decoration: none; }

/* ===== 标签云 ===== */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 5px 13px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--primary-dark);
  text-decoration: none;
  transition: var(--transition);
}
.tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== 内页样式 ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff;
  padding: 60px 0 50px;
  text-align: center;
}
.page-hero h1 { font-size: 36px; font-weight: 900; margin-bottom: 10px; }
.page-hero p { font-size: 16px; opacity: 0.85; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero-content h1 { font-size: 30px; }
  .hero-content .hero-desc { font-size: 15px; }
  .main-nav { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: #fff; padding: 16px; box-shadow: 0 8px 24px rgba(0,0,0,0.1); }
  .main-nav.open { display: flex; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .section { padding: 40px 0; }
  .section-title { font-size: 22px; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .hero-stats { gap: 24px; }
  .stat-item .num { font-size: 24px; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 24px; }
  .hero-btns { flex-direction: column; }
  .video-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.6s ease both; }

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

/* ===== 加载更多 ===== */
.load-more-wrap { text-align: center; margin-top: 36px; }

/* ===== 视频弹窗 ===== */
.video-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.video-modal.show { display: flex; }
.video-modal-inner {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 800px;
  width: 90%;
  position: relative;
}
.video-modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  z-index: 10;
  line-height: 1;
}
.video-modal video { width: 100%; display: block; }

/* ===== 通知条 ===== */
.notice-bar {
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  padding: 10px 0;
  overflow: hidden;
}
.notice-bar .marquee { white-space: nowrap; animation: marquee 30s linear infinite; display: inline-block; }
@keyframes marquee { from { transform: translateX(100vw); } to { transform: translateX(-100%); } }

/* ===== 数据统计条 ===== */
.stats-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
.stats-inner {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 16px;
}
.stats-item { text-align: center; }
.stats-item .s-num { font-size: 28px; font-weight: 900; color: var(--primary); display: block; }
.stats-item .s-label { font-size: 12px; color: var(--gray); }

/* ===== 内页文章 ===== */
.article-content { max-width: 860px; margin: 0 auto; }
.article-content h2 { font-size: 22px; font-weight: 800; color: var(--primary-dark); margin: 28px 0 12px; }
.article-content h3 { font-size: 18px; font-weight: 700; color: var(--dark); margin: 22px 0 10px; }
.article-content p { font-size: 15px; line-height: 1.9; color: var(--dark); margin-bottom: 16px; }
.article-content ul { padding-left: 22px; margin-bottom: 16px; }
.article-content ul li { font-size: 15px; line-height: 1.8; color: var(--dark); margin-bottom: 6px; }

/* ===== 关键词标签 ===== */
.kw-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0; }
.kw-tag {
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 600;
}

/* ===== 补充样式 ===== */

/* 视频关键词横幅 */
.video-kw-banner {
  background: var(--primary-dark);
  padding: 12px 0;
  overflow: hidden;
}
.kw-scroll {
  display: flex;
  gap: 24px;
  animation: scrollKw 30s linear infinite;
  white-space: nowrap;
}
.kw-scroll span {
  color: rgba(255,255,255,0.75);
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}
@keyframes scrollKw {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* 面包屑条 */
.breadcrumb-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--gray);
  padding: 10px 20px;
  max-width: 1280px;
  margin: 0 auto;
}
.breadcrumb .sep { color: #ccc; }
.breadcrumb a { color: var(--primary); font-weight: 600; }

/* Hero Banner 补充 */
.hero-banner {
  position: relative;
  min-height: 580px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,50,25,0.92) 0%, rgba(26,122,60,0.82) 60%, rgba(45,184,90,0.65) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 20px;
  color: #fff;
  text-align: center;
  width: 100%;
}
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 8px 22px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 22px;
  color: #7eff9e;
}
.hero-title {
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 18px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.brand-name { color: #7eff9e; }
.hero-subtitle {
  font-size: clamp(14px, 2vw, 18px);
  opacity: 0.9;
  max-width: 780px;
  margin: 0 auto 30px;
  line-height: 1.8;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero-stat { display: flex; flex-direction: column; align-items: center; }
.hero-stat .stat-num { font-size: 28px; font-weight: 900; color: #7eff9e; line-height: 1; }
.hero-stat .stat-label { font-size: 12px; opacity: 0.8; margin-top: 4px; }
.hero-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-kw-bar {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.hero-kw-bar span {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  color: rgba(255,255,255,0.82);
}

/* section-more */
.section-more {
  display: inline-block;
  margin-top: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
}

/* section-header 居中 */
.section-header {
  margin-bottom: 36px;
  text-align: center;
}
.section-header .section-title { display: inline-block; }
.section-header .section-subtitle { max-width: 700px; margin: 12px auto 0; }

/* 娱乐专区布局 */
.ent-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
}
.ent-side { display: flex; flex-direction: column; gap: 14px; }
.video-card-sm {
  display: flex;
  gap: 12px;
  background: var(--white);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: var(--transition);
}
.video-card-sm:hover { transform: translateX(4px); box-shadow: var(--shadow); }
.video-card-sm .video-thumb { width: 130px; flex-shrink: 0; aspect-ratio: 16/9; }
.video-card-sm .video-info { padding: 10px 12px 10px 0; flex: 1; }

/* AI Section */
.ai-section {
  background: linear-gradient(135deg, #0a3d1f 0%, #1a7a3c 50%, #0f5228 100%);
  position: relative;
  overflow: hidden;
}
.ai-section .section-title { color: #7eff9e; }
.ai-section .section-subtitle { color: rgba(255,255,255,0.8); }
.ai-section .section-more { color: #7eff9e; }
.ai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 22px;
}

/* 植物传媒 */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 22px;
}
.media-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.media-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.media-icon { font-size: 36px; margin-bottom: 12px; }
.media-card h3 { font-size: 17px; font-weight: 800; color: var(--dark); margin-bottom: 6px; }
.media-count { font-size: 13px; color: var(--primary); font-weight: 700; display: block; margin-bottom: 10px; }
.media-card p { font-size: 13px; color: var(--gray); line-height: 1.7; margin-bottom: 16px; }
.media-link { font-size: 13px; font-weight: 700; color: var(--primary); }

/* 专家卡片（首页版） */
.expert-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.expert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.expert-img-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.expert-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.expert-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
}
.expert-info { padding: 16px 18px 18px; }
.expert-info h2, .expert-info h3 { font-size: 17px; font-weight: 800; color: var(--dark); margin-bottom: 4px; }
.expert-title { font-size: 13px; color: var(--primary); font-weight: 700; margin-bottom: 10px; }
.expert-desc { font-size: 13px; color: var(--gray); line-height: 1.7; margin-bottom: 12px; }
.expert-tags { display: flex; gap: 6px; flex-wrap: wrap; }

/* 合作品牌 */
.partner-logos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}
.partner-logo-item {
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.partner-logo-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow); transform: translateY(-3px); }
.partner-logo-inner { padding: 20px 12px; text-align: center; }
.partner-logo-inner span { font-size: 28px; display: block; margin-bottom: 8px; }
.partner-logo-inner p { font-size: 13px; font-weight: 700; color: var(--gray); }

/* 关于区块 */
.about-block {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-text h2 { font-size: 26px; font-weight: 900; color: var(--dark); margin-bottom: 16px; }
.about-text p { font-size: 15px; color: var(--gray); line-height: 1.85; margin-bottom: 14px; }
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.stat-card {
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 14px;
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover { border-color: var(--primary-light); box-shadow: var(--shadow); }
.stat-card .stat-num { font-size: 22px; font-weight: 900; color: var(--primary); display: block; line-height: 1.2; }
.stat-card .stat-label { font-size: 12px; color: var(--gray); display: block; margin-top: 4px; }

/* 视频hot标签 */
.video-hot {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #e74c3c;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}

/* 关键词区 */
.kw-section { padding: 40px 0; }
.kw-section .section-title { font-size: 18px; margin-bottom: 20px; }

/* 返回顶部 */
#backTop {
  display: none;
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  font-size: 20px;
  z-index: 999;
  border: none;
}
#backTop.show { display: flex; }

/* 响应式补充 */
@media (max-width: 1024px) {
  .about-block { grid-template-columns: 1fr; }
  .ent-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .hero-banner { min-height: 480px; }
  .hero-title { font-size: 30px; }
  .hero-stats { gap: 20px; }
  .media-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .expert-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .partner-logos { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 480px) {
  .hero-title { font-size: 26px; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .partner-logos { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 专家详情卡片（expert内页）===== */
.expert-detail-card {
  display: flex;
  gap: 32px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 4px solid var(--primary);
}
.expert-detail-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.expert-detail-img {
  flex-shrink: 0;
  position: relative;
  width: 160px;
}
.expert-detail-img img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--primary-light);
}
.expert-detail-info { flex: 1; }
.expert-detail-info h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 6px;
}
.expert-detail-info .expert-title {
  font-size: 14px;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
}
.expert-detail-info .expert-org,
.expert-detail-info .expert-award,
.expert-detail-info .expert-edu,
.expert-detail-info .expert-exp {
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 6px;
  line-height: 1.6;
}
.expert-detail-info .expert-desc {
  font-size: 14px;
  color: var(--dark);
  line-height: 1.8;
  margin: 12px 0;
}
@media (max-width: 768px) {
  .expert-detail-card { flex-direction: column; align-items: center; text-align: center; }
  .expert-detail-img { width: 120px; }
  .expert-detail-img img { width: 120px; height: 120px; }
}

/* ===== 更新时间 ===== */
.update-time {
  text-align: center;
  padding: 16px 0;
  color: var(--gray);
  font-size: 13px;
  border-top: 1px solid var(--border);
  margin-top: 20px;
}

/* ===== FAQ h3 样式 ===== */
.faq-question h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  margin: 0;
  flex: 1;
  line-height: 1.5;
}
.faq-item.open .faq-question h3 { color: var(--primary); }

/* ===== 快速链接卡片 ===== */
.quick-link-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover) !important;
}
.quick-link-card h3 { margin: 0 0 4px; }
.quick-link-card p { margin: 0; }

/* ===== 页面Hero补充 ===== */
.page-hero-title {
  font-size: 36px;
  font-weight: 900;
  margin-bottom: 10px;
  color: #fff;
}
.page-hero-desc {
  font-size: 16px;
  opacity: 0.85;
  color: rgba(255,255,255,0.9);
}

/* ===== 面包屑条补充 ===== */
.breadcrumb-bar + .page-hero { margin-top: 0; }

/* ===== 内页section-alt ===== */
.section-alt { background: var(--bg2); }

/* ===== 专家卡片补充 ===== */
.expert-card .expert-img-wrap {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}
.expert-card .expert-img-wrap img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-light);
}
.expert-card .expert-badge {
  position: absolute;
  bottom: 0;
  right: calc(50% - 60px);
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  white-space: nowrap;
}
.expert-card .expert-info { text-align: center; }
.expert-card .expert-info h2,
.expert-card .expert-info h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 4px;
}
.expert-card .expert-title {
  font-size: 13px;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 6px;
}
.expert-card .expert-org {
  font-size: 12px;
  color: var(--gray);
  margin-bottom: 6px;
}
.expert-card .expert-award {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}
.expert-card .expert-desc {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 10px;
}
.expert-card .expert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

/* ===== 标签云 ===== */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-cloud .tag {
  display: inline-block;
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--primary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}
.tag-cloud .tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== 响应式补充 ===== */
@media (max-width: 768px) {
  .expert-detail-card { padding: 20px; }
  .page-hero-title { font-size: 26px; }
}