/* 麻豆传媒植物视频社区 - 主样式文件 */
/* ex7zr6e.cn */

/* ===== CSS变量 ===== */
:root {
  --primary: #1a7a45;
  --primary-dark: #0f4a28;
  --primary-light: #e8f5ed;
  --secondary: #f5a623;
  --dark: #1a1a1a;
  --gray: #666;
  --gray-light: #f5f5f5;
  --white: #ffffff;
  --border: #e0e0e0;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
  --transition: all 0.3s ease;
  --radius: 12px;
  --radius-lg: 20px;
}

/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ===== 干扰标签隐藏 ===== */
.dj-noise { display: none !important; visibility: hidden !important; height: 0 !important; overflow: hidden !important; position: absolute !important; left: -9999px !important; }

/* ===== 布局 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 70px 0; }
.section-sm { padding: 40px 0; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 32px; font-weight: 800; color: var(--primary-dark); margin-bottom: 12px; }
.section-title p { font-size: 15px; color: var(--gray); max-width: 600px; margin: 0 auto; }

/* ===== 顶部公告 ===== */
.top-bar {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  padding: 8px 0;
  text-align: center;
}
.top-bar a { color: var(--secondary); margin: 0 4px; }
.top-bar a:hover { text-decoration: underline; }

/* ===== 导航 ===== */
.header {
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary-dark);
  flex-shrink: 0;
}
.logo img { border-radius: 8px; }
.nav { display: flex; align-items: center; gap: 4px; flex-wrap: nowrap; overflow-x: auto; }
.nav a {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--dark);
  white-space: nowrap;
  transition: var(--transition);
}
.nav a:hover, .nav a.active { background: var(--primary-light); color: var(--primary); }
.nav-mobile-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 6px;
  flex-shrink: 0;
}
.nav-mobile-btn span { display: block; width: 22px; height: 2px; background: var(--dark); border-radius: 2px; transition: var(--transition); }

/* ===== 搜索框 ===== */
.search-bar { background: var(--gray-light); padding: 12px 0; border-bottom: 1px solid var(--border); }
.search-form { max-width: 700px; margin: 0 auto; }
.search-inner { display: flex; gap: 0; border-radius: 30px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.search-inner input {
  flex: 1;
  padding: 12px 20px;
  border: none;
  font-size: 14px;
  outline: none;
  background: var(--white);
}
.search-inner button {
  padding: 12px 24px;
  background: var(--primary);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
}
.search-inner button:hover { background: var(--primary-dark); }

/* ===== Banner ===== */
.banner {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.banner-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: brightness(0.45);
  z-index: 0;
}
.banner .container { position: relative; z-index: 1; }
.banner-content { max-width: 700px; color: var(--white); padding: 60px 0; }
.banner-content h1 {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.banner-content h1 em { color: var(--secondary); font-style: normal; }
.banner-content p { font-size: 17px; opacity: 0.9; line-height: 1.8; margin-bottom: 28px; }
.banner-btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,122,69,0.4); }
.btn-secondary { background: var(--secondary); color: var(--white); }
.btn-secondary:hover { background: #e09000; color: var(--white); }
.btn-outline { background: transparent; border-color: var(--white); color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--primary); }
.btn-sm { padding: 8px 18px; font-size: 13px; }

/* ===== 统计数据 ===== */
.stats-bar { background: var(--primary); padding: 30px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-item { text-align: center; color: var(--white); }
.stat-item h3 { font-size: 32px; font-weight: 800; margin-bottom: 4px; }
.stat-item p { font-size: 13px; opacity: 0.8; }

/* ===== 视频卡片 ===== */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 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-lg); }
.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: #111;
}
.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;
  background: rgba(0,0,0,0);
  transition: var(--transition);
}
.video-card:hover .video-play-btn { background: rgba(0,0,0,0.35); }
.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.7);
  transition: var(--transition);
}
.play-icon::after {
  content: '';
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--primary);
  margin-left: 4px;
}
.video-card:hover .play-icon { opacity: 1; transform: scale(1); }
.video-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: var(--white);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
}
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: var(--white);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info { padding: 14px 16px; }
.video-info h3 { font-size: 14px; font-weight: 600; line-height: 1.5; margin-bottom: 10px; color: var(--dark); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-meta { display: flex; gap: 12px; font-size: 12px; color: var(--gray); margin-bottom: 8px; }
.video-author { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--gray); }
.video-author img { border-radius: 50%; object-fit: cover; }

/* ===== 标签 ===== */
.tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
}

/* ===== 模块标签切换 ===== */
.module-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.tab-btn {
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  background: var(--gray-light);
  color: var(--gray);
  border: 2px solid transparent;
  transition: var(--transition);
}
.tab-btn.active, .tab-btn:hover { background: var(--primary); color: var(--white); }

/* ===== AI功能 ===== */
.ai-features { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; }
.ai-card {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  padding: 24px;
  color: var(--white);
  text-align: center;
  transition: var(--transition);
}
.ai-card:hover { background: rgba(255,255,255,0.18); transform: translateY(-4px); }
.ai-icon { font-size: 36px; margin-bottom: 12px; }
.ai-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.ai-card p { font-size: 13px; opacity: 0.8; line-height: 1.6; }

/* ===== 社区入口 ===== */
.community-entries { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 16px; }
.community-entry {
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 14px;
  text-align: center;
  transition: var(--transition);
  display: block;
}
.community-entry:hover { border-color: var(--primary); background: var(--primary-light); transform: translateY(-3px); }
.community-entry .icon { font-size: 30px; margin-bottom: 8px; }
.community-entry h4 { font-size: 14px; font-weight: 700; color: var(--primary-dark); margin-bottom: 4px; }
.community-entry p { font-size: 12px; color: var(--gray); }

/* ===== 专家团队 ===== */
.expert-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.expert-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.expert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.expert-avatar { height: 200px; overflow: hidden; }
.expert-avatar img { width: 100%; height: 100%; object-fit: cover; }
.expert-body { padding: 20px; text-align: center; }
.expert-body h3 { font-size: 20px; font-weight: 800; color: var(--primary-dark); margin-bottom: 4px; }
.expert-title { font-size: 13px; color: var(--primary); font-weight: 600; margin-bottom: 10px; }
.expert-body p { font-size: 13px; color: var(--gray); line-height: 1.7; margin-bottom: 14px; }
.expert-stats { display: flex; justify-content: center; gap: 24px; margin-bottom: 14px; }
.expert-stats div { text-align: center; }
.expert-stats strong { display: block; font-size: 18px; font-weight: 800; color: var(--primary-dark); }
.expert-stats span { font-size: 11px; color: var(--gray); }
.expert-btns { display: flex; gap: 8px; justify-content: center; }

/* ===== 合作品牌 ===== */
.partner-grid { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.partner-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray);
  transition: var(--transition);
}
.partner-item:hover { border-color: var(--primary); color: var(--primary); }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; }
.faq-question {
  padding: 18px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  background: var(--white);
}
.faq-question:hover, .faq-question.open { background: var(--primary-light); color: var(--primary); }
.faq-icon { font-size: 20px; font-weight: 300; transition: var(--transition); }
.faq-question.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer.open { max-height: 300px; }
.faq-answer > div { padding: 16px 20px; font-size: 14px; color: var(--gray); line-height: 1.8; border-top: 1px solid var(--border); }

/* ===== 用户评价 ===== */
.review-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}
.review-stars { color: #f5a623; font-size: 16px; margin-bottom: 12px; }
.review-text { font-size: 14px; color: var(--gray); line-height: 1.8; margin-bottom: 16px; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 40px; height: 40px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700;
  flex-shrink: 0;
}
.review-author-info strong { display: block; font-size: 14px; font-weight: 700; }
.review-author-info span { font-size: 12px; color: var(--gray); }

/* ===== 联系 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-info h3 { font-size: 22px; font-weight: 700; color: var(--primary-dark); margin-bottom: 24px; }
.contact-item { display: flex; gap: 14px; margin-bottom: 18px; align-items: flex-start; }
.contact-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.contact-item-text strong { display: block; font-size: 13px; font-weight: 700; color: var(--dark); margin-bottom: 2px; }
.contact-item-text span { font-size: 14px; color: var(--gray); }
.qr-codes { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-item img { border-radius: 8px; border: 1px solid var(--border); }
.qr-item p { font-size: 12px; color: var(--gray); margin-top: 6px; }

/* ===== 分享 ===== */
.share-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.share-label { font-size: 14px; color: var(--gray); }
.share-btn {
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  border: 2px solid var(--border);
  color: var(--dark);
  transition: var(--transition);
}
.share-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

/* ===== 面包屑 ===== */
.breadcrumb {
  background: var(--gray-light);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  font-size: 13px;
  color: var(--gray);
}
.breadcrumb .container { display: flex; align-items: center; gap: 8px; }
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { color: var(--gray); }

/* ===== 底部 ===== */
.footer { background: #1a1a2e; color: rgba(255,255,255,0.75); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { color: var(--white); margin-bottom: 16px; }
.footer-brand p { font-size: 13px; line-height: 1.8; margin-bottom: 8px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: var(--white); margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a { font-size: 13px; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--white); padding-left: 4px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255,255,255,0.5); }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--white); }

/* ===== 悬浮按钮 ===== */
.float-btns { position: fixed; bottom: 30px; right: 20px; display: flex; flex-direction: column; gap: 10px; z-index: 999; }
.float-btn {
  width: 46px; height: 46px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  box-shadow: 0 4px 16px rgba(26,122,69,0.4);
  transition: var(--transition);
}
.float-btn:hover { transform: scale(1.1); background: var(--primary-dark); }

/* ===== 视频弹窗 ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal-box {
  background: #111;
  border-radius: 16px;
  width: 90%;
  max-width: 700px;
  position: relative;
  overflow: hidden;
}
.modal-close {
  position: absolute;
  top: 12px; right: 16px;
  color: var(--white);
  font-size: 28px;
  z-index: 1;
  opacity: 0.7;
  transition: var(--transition);
}
.modal-close:hover { opacity: 1; }
.modal-video { aspect-ratio: 16/9; background: #000; }

/* ===== 图片懒加载 ===== */
img[data-src] { opacity: 0.3; transition: opacity 0.3s; }
img.loaded { opacity: 1; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .banner-content h1 { font-size: 30px; }
  .section { padding: 50px 0; }
  .section-title h2 { font-size: 24px; }
  .nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--white); padding: 16px; box-shadow: var(--shadow); border-top: 1px solid var(--border); }
  .nav.open { display: flex; }
  .nav-mobile-btn { display: flex; }
  .header-inner { position: relative; }
  .video-grid { grid-template-columns: 1fr 1fr; }
  .expert-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-features { grid-template-columns: 1fr 1fr; }
  .community-entries { grid-template-columns: repeat(4, 1fr); }
  .review-grid { grid-template-columns: 1fr; }
  .banner { min-height: 400px; }
}
@media (max-width: 480px) {
  .banner-content h1 { font-size: 24px; }
  .video-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-features { grid-template-columns: 1fr; }
  .community-entries { grid-template-columns: repeat(3, 1fr); }
  .banner-btns { flex-direction: column; }
  .btn { justify-content: center; }
  .search-inner input { font-size: 13px; }
}

/* ===== 打印样式 ===== */
@media print {
  .header, .footer, .float-btns, .modal-overlay, .search-bar, .top-bar { display: none; }
  .banner { min-height: auto; }
}

/* ===== 底部补充样式 ===== */
.footer-bottom-bar { background: rgba(0,0,0,0.25); padding: 20px 0; margin-top: 0; }
.footer-update { margin-left: 16px; color: rgba(255,255,255,0.45); }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }
.footer-links a { color: rgba(255,255,255,0.5); font-size: 13px; }
.footer-links a:hover { color: var(--white); }
.footer-qr-row { display: flex; gap: 16px; margin-top: 16px; }
.footer-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.footer-tag { font-size: 11px; padding: 3px 10px; background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.55); border-radius: 12px; transition: var(--transition); }
.footer-tag:hover { background: var(--primary); color: var(--white); }

/* ===== 视频弹窗内容 ===== */
.modal-placeholder { text-align: center; padding: 50px 20px; }
.modal-play-icon { font-size: 56px; margin-bottom: 16px; color: var(--primary); }
.modal-title { color: rgba(255,255,255,0.85); font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.modal-sub { color: rgba(255,255,255,0.5); font-size: 13px; margin-bottom: 6px; }
.modal-domain { color: rgba(255,255,255,0.35); font-size: 12px; }

/* ===== 内页页头 ===== */
.page-hero { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: var(--white); padding: 60px 0; text-align: center; position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background: url('/images/hero_bg.jpg') center/cover; opacity: 0.15; }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: 38px; font-weight: 800; margin-bottom: 12px; }
.page-hero p { font-size: 16px; opacity: 0.85; max-width: 600px; margin: 0 auto; }

/* ===== 关键词标签云 ===== */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 20px; }
.tag-cloud a { font-size: 13px; padding: 5px 14px; background: var(--primary-light); color: var(--primary-dark); border-radius: 20px; transition: var(--transition); }
.tag-cloud a:hover { background: var(--primary); color: var(--white); }

/* ===== 视频专题页布局 ===== */
.topic-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; margin-bottom: 50px; }
.topic-intro-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.topic-intro-img img { width: 100%; height: 300px; object-fit: cover; }
.topic-intro-text h2 { font-size: 28px; font-weight: 800; color: var(--primary-dark); margin-bottom: 16px; }
.topic-intro-text p { color: var(--gray); line-height: 1.8; margin-bottom: 12px; font-size: 15px; }
.topic-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
.topic-fact { background: var(--primary-light); border-radius: 10px; padding: 12px 16px; }
.topic-fact strong { display: block; font-size: 13px; color: var(--primary-dark); margin-bottom: 4px; }
.topic-fact span { font-size: 12px; color: var(--gray); }

/* ===== 视频页分类标签 ===== */
.video-cats { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.video-cat-btn { padding: 8px 20px; border-radius: 20px; font-size: 14px; font-weight: 600; border: 2px solid var(--border); color: var(--gray); background: var(--white); transition: var(--transition); cursor: pointer; }
.video-cat-btn.active, .video-cat-btn:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ===== 分页 ===== */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.page-btn { width: 38px; height: 38px; border-radius: 8px; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 14px; color: var(--gray); transition: var(--transition); cursor: pointer; }
.page-btn.active, .page-btn:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ===== 专家详情卡 ===== */
.expert-detail { background: var(--white); border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow); margin-bottom: 24px; display: grid; grid-template-columns: 160px 1fr; gap: 30px; align-items: start; }
.expert-detail-avatar { width: 160px; height: 160px; border-radius: 50%; overflow: hidden; border: 4px solid var(--primary-light); }
.expert-detail-avatar img { width: 100%; height: 100%; object-fit: cover; }
.expert-detail-name { font-size: 24px; font-weight: 800; color: var(--primary-dark); margin-bottom: 6px; }
.expert-detail-title { font-size: 14px; color: var(--primary); margin-bottom: 16px; font-weight: 600; }
.expert-detail-bio { font-size: 14px; color: var(--gray); line-height: 1.8; margin-bottom: 16px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 8px; }
.expert-award-tag { font-size: 12px; padding: 4px 12px; background: var(--secondary); color: var(--white); border-radius: 12px; font-weight: 600; }

/* ===== 社区话题卡 ===== */
.topic-card { background: var(--white); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); transition: var(--transition); border-left: 4px solid var(--primary); }
.topic-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.topic-card-icon { font-size: 32px; margin-bottom: 12px; }
.topic-card h3 { font-size: 17px; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
.topic-card p { font-size: 13px; color: var(--gray); line-height: 1.7; margin-bottom: 12px; }
.topic-card-meta { font-size: 12px; color: var(--primary); font-weight: 600; }

/* ===== 创作者等级 ===== */
.level-card { background: var(--white); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow); text-align: center; border-top: 4px solid var(--primary); transition: var(--transition); }
.level-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.level-icon { font-size: 48px; margin-bottom: 12px; }
.level-name { font-size: 20px; font-weight: 800; color: var(--primary-dark); margin-bottom: 8px; }
.level-req { font-size: 13px; color: var(--gray); margin-bottom: 16px; }
.level-perks { text-align: left; }
.level-perk { font-size: 13px; color: var(--dark); padding: 6px 0; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.level-perk:last-child { border-bottom: none; }

/* ===== 关于页时间线 ===== */
.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ''; position: absolute; left: 10px; top: 0; bottom: 0; width: 2px; background: var(--primary-light); }
.timeline-item { position: relative; margin-bottom: 28px; }
.timeline-dot { position: absolute; left: -24px; top: 4px; width: 12px; height: 12px; background: var(--primary); border-radius: 50%; border: 2px solid var(--white); box-shadow: 0 0 0 3px var(--primary-light); }
.timeline-year { font-size: 13px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.timeline-event { font-size: 14px; color: var(--gray); line-height: 1.7; }

/* ===== 资质荣誉 ===== */
.cert-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.cert-card { background: var(--white); border-radius: var(--radius); padding: 20px; text-align: center; box-shadow: var(--shadow); border: 1px solid var(--border); }
.cert-icon { font-size: 36px; margin-bottom: 10px; }
.cert-title { font-size: 14px; font-weight: 700; color: var(--primary-dark); margin-bottom: 4px; }
.cert-year { font-size: 12px; color: var(--gray); }

/* ===== 联系表单 ===== */
.contact-form { background: var(--white); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--dark); margin-bottom: 8px; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; transition: var(--transition); background: var(--gray-light); }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--primary); background: var(--white); box-shadow: 0 0 0 3px rgba(26,122,69,0.1); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* ===== 配件产品卡 ===== */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.product-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-icon { font-size: 60px; text-align: center; padding: 30px 20px 10px; background: var(--primary-light); }
.product-body { padding: 20px; }
.product-name { font-size: 17px; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
.product-desc { font-size: 13px; color: var(--gray); line-height: 1.7; margin-bottom: 14px; }
.product-price { font-size: 20px; font-weight: 800; color: var(--primary); margin-bottom: 14px; }
.product-btn { display: block; text-align: center; padding: 10px; background: var(--primary); color: var(--white); border-radius: 8px; font-size: 14px; font-weight: 600; transition: var(--transition); }
.product-btn:hover { background: var(--primary-dark); color: var(--white); }

/* ===== JSON-LD面包屑补充 ===== */
.breadcrumb-jsonld { display: none; }

/* ===== 内页响应式 ===== */
@media (max-width: 768px) {
  .topic-intro { grid-template-columns: 1fr; }
  .expert-detail { grid-template-columns: 1fr; text-align: center; }
  .expert-detail-avatar { margin: 0 auto; }
  .topic-facts { grid-template-columns: 1fr; }
  .footer-qr-row { justify-content: flex-start; }
  .page-hero h1 { font-size: 28px; }
}
@media (max-width: 480px) {
  .cert-grid { grid-template-columns: 1fr 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}

/* ===== 内页Hero ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 60px 0;
  color: var(--white);
}
.page-hero h1 { font-size: 38px; font-weight: 800; margin-bottom: 12px; }
.page-hero p { font-size: 16px; opacity: 0.85; margin-bottom: 20px; }
.page-hero .tag-cloud a { background: rgba(255,255,255,0.15); color: var(--white); border-color: rgba(255,255,255,0.3); }
.page-hero .tag-cloud a:hover { background: rgba(255,255,255,0.3); }

/* ===== 专题介绍 ===== */
.topic-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 60px;
}
.topic-intro-img img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.topic-intro-text h2 { font-size: 26px; font-weight: 700; color: var(--primary-dark); margin-bottom: 16px; }
.topic-intro-text p { color: var(--gray); line-height: 1.8; margin-bottom: 14px; }
.topic-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
.topic-fact { background: var(--primary-light); border-radius: 10px; padding: 12px 16px; }
.topic-fact strong { display: block; font-size: 13px; font-weight: 700; color: var(--primary-dark); margin-bottom: 4px; }
.topic-fact span { font-size: 12px; color: var(--gray); }

/* ===== 视频分类按钮 ===== */
.video-cats { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.video-cat-btn { padding: 8px 18px; border-radius: 20px; font-size: 14px; font-weight: 600; background: var(--gray-light); color: var(--gray); border: 1px solid var(--border); transition: var(--transition); }
.video-cat-btn.active, .video-cat-btn:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ===== 关于页布局 ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; margin-bottom: 60px; }
.about-text h2 { font-size: 28px; font-weight: 700; color: var(--primary-dark); margin-bottom: 20px; }
.about-text p { color: var(--gray); line-height: 1.8; margin-bottom: 16px; }
.about-img img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow); }

/* ===== 合作伙伴 ===== */
.partners-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; }
.partner-item { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; text-align: center; font-size: 13px; font-weight: 600; color: var(--primary-dark); transition: var(--transition); }
.partner-item:hover { border-color: var(--primary); background: var(--primary-light); }

/* ===== 配件产品卡（新） ===== */
.accessories-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.accessory-card { background: var(--white); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); transition: var(--transition); position: relative; }
.accessory-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.accessory-icon { font-size: 40px; margin-bottom: 12px; }
.accessory-tag { position: absolute; top: 16px; right: 16px; background: var(--primary-light); color: var(--primary); font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 4px; }
.accessory-card h3 { font-size: 17px; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
.accessory-card p { font-size: 13px; color: var(--gray); line-height: 1.7; margin-bottom: 14px; }
.accessory-footer { display: flex; justify-content: space-between; align-items: center; }
.accessory-price { font-size: 18px; font-weight: 800; color: var(--primary); }
.topic-card-link { font-size: 13px; color: var(--primary); font-weight: 600; }
.topic-card-link:hover { text-decoration: underline; }

/* ===== 视频导航卡 ===== */
.video-nav-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.video-nav-card { display: block; background: var(--white); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); transition: var(--transition); text-align: center; border-top: 3px solid var(--primary); }
.video-nav-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: var(--primary); }
.video-nav-icon { font-size: 36px; margin-bottom: 10px; }
.video-nav-card h3 { font-size: 16px; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
.video-nav-card p { font-size: 12px; color: var(--gray); margin-bottom: 10px; }
.video-nav-count { font-size: 12px; font-weight: 700; color: var(--primary); background: var(--primary-light); padding: 3px 8px; border-radius: 4px; }

/* ===== 分页 ===== */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; flex-wrap: wrap; }
.page-active { padding: 8px 16px; background: var(--primary); color: var(--white); border-radius: 6px; font-size: 14px; font-weight: 700; }
.page-link { padding: 8px 16px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; color: var(--dark); transition: var(--transition); }
.page-link:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ===== 联系页 ===== */
.contact-form-wrap h3 { font-size: 20px; font-weight: 700; color: var(--primary-dark); margin-bottom: 20px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--dark); margin-bottom: 6px; }
.form-input { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; outline: none; box-sizing: border-box; transition: var(--transition); }
.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,122,69,0.1); }
.form-textarea { resize: vertical; min-height: 100px; }
.btn-full { width: 100%; }

/* ===== 资质卡片补充 ===== */
.cert-card h3 { font-size: 14px; font-weight: 700; color: var(--primary-dark); margin-bottom: 4px; }
.cert-card p { font-size: 12px; color: var(--gray); }

/* ===== 响应式补充 ===== */
@media (max-width: 768px) {
  .topic-intro { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .topic-facts { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 26px; }
  .accessories-grid { grid-template-columns: 1fr; }
  .video-nav-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .video-nav-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
}