/* =============================================
   每日大赛传媒 - 主样式文件
   rjhpr.cn | © 2026 每日大赛传媒
   ============================================= */

/* ---- CSS变量 ---- */
:root {
  --primary: #c0392b;
  --primary-dark: #922b21;
  --primary-light: #e74c3c;
  --accent: #d4ac0d;
  --accent-light: #f1c40f;
  --dark: #1a1a2e;
  --dark-mid: #16213e;
  --dark-light: #0f3460;
  --text-main: #2c2c2c;
  --text-muted: #666;
  --text-light: #999;
  --bg-light: #f8f5f0;
  --bg-white: #ffffff;
  --bg-section: #fdf6f0;
  --border: #e8ddd5;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(192,57,43,0.18);
  --radius: 12px;
  --radius-sm: 6px;
  --transition: all 0.3s ease;
  --font-main: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', sans-serif;
}

/* ---- 重置与基础 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-main);
  color: var(--text-main);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-main); }
input, textarea, select { font-family: var(--font-main); }

/* ---- 工具类 ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 70px 0; }
.section-alt { background: var(--bg-section); }
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-muted { color: var(--text-muted); }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.hidden { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ---- 标题组件 ---- */
.section-header { text-align: center; margin-bottom: 50px; }
.section-header .tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 14px;
  line-height: 1.3;
}
.section-header h2 span { color: var(--primary); }
.section-header p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}
.divider {
  width: 60px; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  margin: 16px auto 0;
}

/* ---- 按钮 ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 8px;
  font-size: 15px; font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: 0 4px 15px rgba(192,57,43,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(192,57,43,0.45);
}
.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-gold {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--dark);
  box-shadow: 0 4px 15px rgba(212,172,13,0.35);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(212,172,13,0.45); }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 16px 40px; font-size: 17px; }

/* ---- 顶部公告栏 ---- */
.top-bar {
  background: var(--dark);
  color: rgba(255,255,255,0.8);
  font-size: 13px;
  padding: 7px 0;
}
.top-bar .container {
  display: flex; align-items: center; justify-content: space-between;
}
.top-bar-left { display: flex; align-items: center; gap: 20px; }
.top-bar-right { display: flex; align-items: center; gap: 16px; }
.top-bar a { color: rgba(255,255,255,0.8); }
.top-bar a:hover { color: var(--accent-light); }
.top-bar .notice { color: var(--accent-light); font-weight: 600; }

/* ---- 头部导航 ---- */
.site-header {
  background: var(--bg-white);
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
  position: sticky; top: 0; z-index: 1000;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
  gap: 20px;
}
.site-logo {
  display: flex; align-items: center; gap: 12px;
  flex-shrink: 0;
}
.site-logo img.logo-img {
  height: 48px; width: auto;
  object-fit: contain;
}
.site-logo .logo-text {
  display: flex; flex-direction: column;
}
.site-logo .logo-name {
  font-size: 22px; font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  letter-spacing: 1px;
}
.site-logo .logo-slogan {
  font-size: 11px; color: var(--text-muted);
  letter-spacing: 2px;
}

/* 搜索框 */
.header-search {
  flex: 1; max-width: 420px;
  position: relative;
}
.header-search input {
  width: 100%;
  padding: 10px 46px 10px 18px;
  border: 2px solid var(--border);
  border-radius: 24px;
  font-size: 14px;
  background: var(--bg-light);
  transition: var(--transition);
  outline: none;
}
.header-search input:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(192,57,43,0.1);
}
.header-search input::placeholder { color: var(--text-light); }
.header-search .search-btn {
  position: absolute; right: 12px; top: 50%;
  transform: translateY(-50%);
  color: var(--primary); font-size: 16px;
  background: none; border: none; cursor: pointer;
}

/* 主导航 */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 14px;
  font-size: 14px; font-weight: 500;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute; bottom: 4px; left: 50%; right: 50%;
  height: 2px; background: var(--primary);
  transition: var(--transition); border-radius: 1px;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--primary); background: rgba(192,57,43,0.06);
}
.main-nav a:hover::after, .main-nav a.active::after {
  left: 14px; right: 14px;
}
.nav-live {
  background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
  color: #fff !important;
  border-radius: 20px !important;
  padding: 6px 16px !important;
  font-size: 13px !important;
}
.nav-live::after { display: none !important; }
.nav-live:hover { opacity: 0.9; transform: scale(1.03); }

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

/* ---- 搜索栏（导航下方） ---- */
.nav-search-bar {
  background: var(--bg-light);
  border-top: 1px solid var(--border);
  padding: 12px 0;
}
.nav-search-bar .container {
  display: flex; align-items: center; gap: 12px;
}
.nav-search-bar .search-wrap {
  display: flex; align-items: center;
  background: #fff; border: 2px solid var(--border);
  border-radius: 28px; overflow: hidden;
  flex: 1; max-width: 700px;
  transition: var(--transition);
}
.nav-search-bar .search-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(192,57,43,0.1);
}
.nav-search-bar input {
  flex: 1; padding: 10px 20px;
  border: none; outline: none;
  font-size: 14px; background: transparent;
}
.nav-search-bar button {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; padding: 10px 24px;
  font-size: 14px; font-weight: 600;
  border: none; cursor: pointer;
  transition: var(--transition);
}
.nav-search-bar button:hover { opacity: 0.9; }
.search-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.search-tags span {
  font-size: 12px; color: var(--text-muted);
  background: #fff; border: 1px solid var(--border);
  padding: 4px 12px; border-radius: 14px;
  cursor: pointer; transition: var(--transition);
}
.search-tags span:hover { border-color: var(--primary); color: var(--primary); }

/* ---- Hero Banner ---- */
.hero-banner {
  position: relative;
  background: var(--dark);
  overflow: hidden;
  min-height: 520px;
}
.hero-banner .hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.45;
}
.hero-banner .hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.92) 0%, rgba(192,57,43,0.4) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  padding: 80px 0 60px;
  color: #fff;
}
.hero-content .hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(212,172,13,0.2); border: 1px solid var(--accent);
  color: var(--accent-light); font-size: 13px; font-weight: 600;
  padding: 6px 16px; border-radius: 20px;
  margin-bottom: 20px;
}
.hero-content h1 {
  font-size: 48px; font-weight: 800;
  line-height: 1.2; margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-content h1 .highlight { color: var(--accent-light); }
.hero-content .hero-desc {
  font-size: 17px; color: rgba(255,255,255,0.85);
  max-width: 560px; margin-bottom: 32px; line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 40px; margin-top: 48px;
  padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stat .num {
  font-size: 32px; font-weight: 800;
  color: var(--accent-light); line-height: 1;
}
.hero-stat .label {
  font-size: 13px; color: rgba(255,255,255,0.7);
  margin-top: 4px;
}
.hero-right {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: center;
}
.hero-video-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 16px; overflow: hidden;
  width: 340px;
}
.hero-video-card .video-thumb {
  position: relative; aspect-ratio: 16/9;
  overflow: hidden;
}
.hero-video-card .video-thumb img {
  width: 100%; height: 100%; object-fit: cover;
}
.hero-video-card .play-btn {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.3);
  transition: var(--transition);
}
.hero-video-card .play-btn svg {
  width: 56px; height: 56px;
  fill: rgba(255,255,255,0.9);
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5));
  transition: var(--transition);
}
.hero-video-card:hover .play-btn { background: rgba(192,57,43,0.5); }
.hero-video-card:hover .play-btn svg { transform: scale(1.1); }
.hero-video-card .video-info { padding: 14px 16px; }
.hero-video-card .video-info .title {
  font-size: 14px; font-weight: 600; color: #fff;
  margin-bottom: 6px;
}
.hero-video-card .video-info .meta {
  font-size: 12px; color: rgba(255,255,255,0.6);
  display: flex; gap: 12px;
}

/* ---- 视频卡片 ---- */
.video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.video-card {
  background: var(--bg-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-card .thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--dark);
}
.video-card .thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .thumb img { transform: scale(1.08); }
.video-card .thumb .overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.video-card:hover .thumb .overlay { background: rgba(0,0,0,0.35); }
.video-card .thumb .play-icon {
  width: 52px; height: 52px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: scale(0.7);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.video-card:hover .thumb .play-icon {
  opacity: 1; transform: scale(1);
}
.video-card .thumb .play-icon svg {
  width: 22px; height: 22px;
  fill: var(--primary);
  margin-left: 3px;
}
.video-card .thumb .duration {
  position: absolute; bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.75); color: #fff;
  font-size: 11px; padding: 2px 7px;
  border-radius: 4px; font-weight: 600;
}
.video-card .thumb .badge {
  position: absolute; top: 8px; left: 8px;
  background: var(--primary); color: #fff;
  font-size: 11px; padding: 2px 8px;
  border-radius: 4px; font-weight: 600;
}
.video-card .badge-live { background: #e74c3c !important; }
.video-card .badge-hot { background: #e67e22 !important; }
.video-card .badge-new { background: #27ae60 !important; }
.video-card .info { padding: 14px; }
.video-card .info .title {
  font-size: 14px; font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-card .info .meta {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; color: var(--text-light);
}
.video-card .info .meta .stats {
  display: flex; gap: 10px;
}
.video-card .info .meta .stats span {
  display: flex; align-items: center; gap: 3px;
}
.video-card .info .author {
  display: flex; align-items: center; gap: 6px;
  margin-top: 8px;
}
.video-card .info .author img {
  width: 24px; height: 24px;
  border-radius: 50%; object-fit: cover;
}
.video-card .info .author span {
  font-size: 12px; color: var(--text-muted);
}

/* ---- 分类标签栏 ---- */
.category-tabs {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 28px;
}
.category-tabs .tab {
  padding: 8px 20px;
  border-radius: 24px;
  font-size: 14px; font-weight: 500;
  border: 2px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  background: #fff;
}
.category-tabs .tab:hover,
.category-tabs .tab.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(192,57,43,0.06);
}
.category-tabs .tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ---- 专家卡片 ---- */
.expert-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}
.expert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.expert-card .photo {
  aspect-ratio: 3/4;
  overflow: hidden;
  position: relative;
}
.expert-card .photo img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top;
  transition: transform 0.4s ease;
}
.expert-card:hover .photo img { transform: scale(1.05); }
.expert-card .photo .role-badge {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: #fff; padding: 20px 14px 10px;
  font-size: 12px; font-weight: 600;
  letter-spacing: 1px;
}
.expert-card .body { padding: 18px; }
.expert-card .body h3 { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.expert-card .body .title-text { font-size: 13px; color: var(--primary); font-weight: 600; margin-bottom: 8px; }
.expert-card .body p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 14px; }
.expert-card .body .awards { display: flex; flex-wrap: wrap; gap: 4px; justify-content: center; margin-bottom: 14px; }
.expert-card .body .awards span {
  background: rgba(212,172,13,0.1); border: 1px solid var(--accent);
  color: var(--accent); font-size: 11px; padding: 2px 8px; border-radius: 10px;
}
.expert-card .body .actions { display: flex; gap: 8px; justify-content: center; }

/* ---- 用户评价 ---- */
.review-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
  transition: var(--transition);
}
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.review-card .stars { color: var(--accent-light); font-size: 16px; margin-bottom: 10px; }
.review-card .content { font-size: 14px; color: var(--text-main); line-height: 1.8; margin-bottom: 16px; }
.review-card .user { display: flex; align-items: center; gap: 10px; }
.review-card .user img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.review-card .user .name { font-size: 14px; font-weight: 600; }
.review-card .user .date { font-size: 12px; color: var(--text-light); }

/* ---- FAQ ---- */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 12px;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-question {
  padding: 18px 24px;
  font-size: 15px; font-weight: 600;
  cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-white);
  transition: var(--transition);
}
.faq-question:hover, .faq-item.open .faq-question {
  background: rgba(192,57,43,0.04); color: var(--primary);
}
.faq-question .icon {
  width: 24px; height: 24px;
  border-radius: 50%; background: var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700;
  transition: var(--transition); flex-shrink: 0;
}
.faq-item.open .faq-question .icon {
  background: var(--primary); color: #fff; transform: rotate(45deg);
}
.faq-answer {
  padding: 0 24px;
  max-height: 0; overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  font-size: 14px; color: var(--text-muted); line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 18px; }

/* ---- 合作品牌 ---- */
.partner-logos {
  display: flex; flex-wrap: wrap;
  align-items: center; justify-content: center;
  gap: 24px;
}
.partner-logo {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 28px;
  font-size: 15px; font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
  min-width: 120px; text-align: center;
}
.partner-logo:hover {
  border-color: var(--primary); color: var(--primary);
  box-shadow: var(--shadow);
}

/* ---- 联系我们 ---- */
.contact-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  height: 100%;
}
.contact-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: var(--dark); }
.contact-item {
  display: flex; align-items: flex-start; gap: 12px;
  margin-bottom: 14px; font-size: 14px;
}
.contact-item .icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(192,57,43,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 16px; flex-shrink: 0;
}
.contact-item .text .label { font-size: 12px; color: var(--text-light); margin-bottom: 2px; }
.contact-item .text .value { font-weight: 600; color: var(--text-main); }
.qr-group { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-item img { width: 110px; height: 110px; border-radius: 8px; border: 1px solid var(--border); }
.qr-item p { font-size: 12px; color: var(--text-muted); margin-top: 6px; }

/* ---- 社交分享 ---- */
.share-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.share-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 9px 18px; border-radius: 8px;
  font-size: 13px; font-weight: 600;
  transition: var(--transition); cursor: pointer;
}
.share-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.share-wechat { background: #07c160; color: #fff; }
.share-weibo { background: #e6162d; color: #fff; }
.share-douyin { background: #010101; color: #fff; }
.share-bilibili { background: #00a1d6; color: #fff; }

/* ---- 页脚 ---- */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-brand .logo-area {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
}
.footer-brand .logo-area img { height: 40px; filter: brightness(0) invert(1); }
.footer-brand .logo-area .name { font-size: 20px; font-weight: 800; color: #fff; }
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); }
.footer-col h4 {
  font-size: 15px; font-weight: 700; color: #fff;
  margin-bottom: 16px; padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-col ul li { margin-bottom: 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(--accent-light); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px; color: rgba(255,255,255,0.5);
  flex-wrap: wrap; gap: 10px;
}
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--accent-light); }
.footer-links { display: flex; gap: 16px; }
.update-time { color: var(--accent-light); font-size: 12px; }

/* ---- 面包屑 ---- */
.breadcrumb {
  background: var(--bg-light);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.breadcrumb ol {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--text-muted);
}
.breadcrumb ol li a { color: var(--primary); }
.breadcrumb ol li a:hover { text-decoration: underline; }
.breadcrumb ol li::after { content: '/'; margin-left: 6px; }
.breadcrumb ol li:last-child::after { display: none; }
.breadcrumb ol li:last-child { color: var(--text-main); font-weight: 500; }

/* ---- 内页头部 ---- */
.page-hero {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  padding: 50px 0;
  color: #fff;
  text-align: center;
}
.page-hero h1 { font-size: 36px; font-weight: 800; margin-bottom: 10px; }
.page-hero h1 span { color: var(--accent-light); }
.page-hero p { font-size: 16px; color: rgba(255,255,255,0.75); max-width: 600px; margin: 0 auto; }

/* ---- 分页 ---- */
.pagination {
  display: flex; justify-content: center; gap: 8px;
  margin-top: 40px;
}
.pagination a, .pagination span {
  width: 38px; height: 38px;
  border-radius: 8px; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 500;
  transition: var(--transition);
}
.pagination a:hover, .pagination .current {
  background: var(--primary); color: #fff; border-color: var(--primary);
}

/* ---- 加载动画 ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeInUp 0.6s ease forwards; }
.fade-in-delay-1 { animation-delay: 0.1s; opacity: 0; }
.fade-in-delay-2 { animation-delay: 0.2s; opacity: 0; }
.fade-in-delay-3 { animation-delay: 0.3s; opacity: 0; }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-content h1 { font-size: 38px; }
}
@media (max-width: 768px) {
  .top-bar { display: none; }
  .header-search { display: none; }
  .main-nav { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(26,26,46,0.97); flex-direction: column; align-items: center; justify-content: center; gap: 20px; z-index: 2000; }
  .main-nav.open { display: flex; }
  .main-nav a { font-size: 18px; color: #fff; padding: 12px 24px; }
  .main-nav a:hover { color: var(--accent-light); }
  .hamburger { display: flex; }
  .hero-content h1 { font-size: 28px; }
  .hero-stats { gap: 20px; }
  .hero-stat .num { font-size: 24px; }
  .video-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .section-header h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .nav-search-bar .search-tags { display: none; }
  .hero-right { display: none; }
  .hero-content { padding: 50px 0 40px; }
  .section { padding: 50px 0; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 24px; }
  .btn-lg { padding: 12px 24px; font-size: 15px; }
  .hero-actions { flex-direction: column; }
}

/* ---- 特殊组件 ---- */
.live-badge {
  display: inline-flex; align-items: center; gap: 5px;
  background: #e74c3c; color: #fff;
  font-size: 11px; font-weight: 700;
  padding: 3px 8px; border-radius: 4px;
}
.live-badge::before {
  content: '';
  width: 6px; height: 6px;
  background: #fff; border-radius: 50%;
  animation: pulse 1.2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.stats-bar {
  background: linear-gradient(135deg, var(--dark), var(--dark-light));
  padding: 28px 0;
}
.stats-bar .container {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-item { text-align: center; color: #fff; }
.stat-item .num { font-size: 36px; font-weight: 800; color: var(--accent-light); }
.stat-item .label { font-size: 13px; color: rgba(255,255,255,0.7); margin-top: 4px; }

.how-to-steps { counter-reset: step; }
.how-to-step {
  display: flex; gap: 20px; margin-bottom: 28px;
  align-items: flex-start;
}
.how-to-step .step-num {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; font-size: 18px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.how-to-step .step-content h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.how-to-step .step-content p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

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

/* 选中文字颜色 */
::selection { background: rgba(192,57,43,0.2); color: var(--primary-dark); }