/* =============================================
   抖音揭秘 - 主样式表 (外部CSS)
   品牌色：深蓝 #0d1b3e | 活力红 #e8192c | 青蓝 #00c8ff
   域名：y0216r.cn
   ============================================= */

:root {
  --primary: #0d1b3e;
  --accent: #e8192c;
  --cyan: #00c8ff;
  --dark: #080f1f;
  --card-bg: #111827;
  --text-main: #f0f4ff;
  --text-muted: #8899bb;
  --border: rgba(0,200,255,0.15);
  --gradient: linear-gradient(135deg, #0d1b3e 0%, #1a2a5e 50%, #0d1b3e 100%);
  --glow: 0 0 20px rgba(0,200,255,0.3);
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

*, *::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', 'Noto Sans SC', sans-serif;
  background: var(--dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--cyan); text-decoration: none; transition: var(--transition); }
a:hover { color: #fff; }

img { max-width: 100%; height: auto; display: block; }

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

/* ============ HEADER ============ */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8,15,31,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

/* 第一行：Logo + 导航 + 汉堡 */
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 24px;
  gap: 20px;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-wrap img {
  width: 44px;
  height: 44px;
  border-radius: 8px;
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(90deg, #fff 0%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
}

/* 主导航 */
#main-nav { display: flex; align-items: center; gap: 4px; }

#main-nav a {
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  transition: var(--transition);
}

#main-nav a:hover,
#main-nav a.active {
  background: rgba(0,200,255,0.12);
  color: var(--cyan);
}

/* 汉堡菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* 第二行：搜索框（导航下方独立行）*/
.6isvyt {
  background: rgba(8,15,31,0.95);
  border-top: 1px solid rgba(0,200,255,0.08);
  padding: 8px 24px;
}

.z3nimsq9 {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.j4t87 {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 0 6px 0 14px;
  gap: 8px;
  transition: var(--transition);
  flex: 1;
  max-width: 560px;
  min-width: 200px;
}

.j4t87:focus-within {
  border-color: var(--cyan);
  box-shadow: var(--glow);
}

.search-icon { color: var(--text-muted); flex-shrink: 0; }

.j4t87 input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 0.88rem;
  flex: 1;
  padding: 8px 0;
  min-width: 0;
}

.j4t87 input::placeholder { color: var(--text-muted); }

.search-btn {
  background: var(--accent);
  border: none;
  cursor: pointer;
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  flex-shrink: 0;
  transition: var(--transition);
}

.search-btn:hover { background: #c01020; }

/* 热门搜索标签 */
.ihtjyy1 {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.x9nj8nz {
  font-size: 0.78rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.aj147r {
  font-size: 0.76rem;
  color: var(--text-muted);
  background: rgba(0,200,255,0.06);
  border: 1px solid rgba(0,200,255,0.15);
  padding: 2px 10px;
  border-radius: 12px;
  transition: var(--transition);
  white-space: nowrap;
}

.aj147r:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(0,200,255,0.1);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.ufytm {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero_banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
  z-index: 0;
}

.npszmog8 {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8,15,31,0.9) 0%, rgba(8,15,31,0.3) 60%, transparent 100%);
  z-index: 1;
}

.8cpr91 {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 24px;
  width: 100%;
}

.5zdg5n {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232,25,44,0.15);
  border: 1px solid rgba(232,25,44,0.3);
  color: #ff6b7a;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 680px;
}

.hero h1 .highlight {
  background: linear-gradient(90deg, var(--cyan), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.05rem;
  color: rgba(240,244,255,0.8);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.8;
}

.yucq0wh {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.3b8yt1 {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.mx78b5 { text-align: center; }

.2eoku5 {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--cyan);
}

.nvcvqzu {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ============ BUTTONS ============ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary:hover {
  background: #c01020;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232,25,44,0.35);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-main);
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  border: 1.5px solid rgba(255,255,255,0.3);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
}

.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

.btn-sm {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-sm-primary { background: var(--accent); color: #fff; }
.btn-sm-primary:hover { background: #c01020; color: #fff; }
.btn-sm-outline { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-sm-outline:hover { border-color: var(--cyan); color: var(--cyan); }

/* ============ SECTIONS ============ */
.section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 72px 24px;
}

.section-full {
  background: rgba(0,200,255,0.03);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 72px 24px;
}

.g6qrzmmk {
  max-width: 1280px;
  margin: 0 auto;
}

.p4y6y {
  text-align: center;
  margin-bottom: 48px;
}

.gwed7 {
  display: inline-block;
  background: rgba(232,25,44,0.1);
  border: 1px solid rgba(232,25,44,0.25);
  color: var(--accent);
  padding: 4px 14px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  margin-bottom: 12px;
  line-height: 1.3;
}

.section-title span {
  background: linear-gradient(90deg, var(--cyan), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============ VIDEO CARDS ============ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

.video-card:hover {
  border-color: rgba(0,200,255,0.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.4);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #0d1b3e;
}

.video-thumb img,
.video-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}

.video-card:hover .video-thumb img,
.video-card:hover .video-thumb video {
  transform: scale(1.06);
}

/* H5 video 标签样式 */
.video-thumb video {
  pointer-events: none;
}

.play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: var(--transition);
}

.video-card:hover .play-btn { opacity: 1; }

.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(232,25,44,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  transform: scale(0.8);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(232,25,44,0.5);
}

.video-card:hover .play-icon { transform: scale(1); }

.play-icon svg {
  width: 22px;
  height: 22px;
  fill: #fff;
  margin-left: 3px;
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.78);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}

.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 700;
}

.video-info { padding: 14px 16px 16px; }

.video-title {
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 视频发布时间（EEAT时效性）*/
.video-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ============ FEATURE CARDS ============ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: rgba(0,200,255,0.35);
  transform: translateY(-4px);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============ EXPERT CARDS ============ */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.expert-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}

.expert-card:hover { border-color: rgba(0,200,255,0.35); }

.expert-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 14px;
  border: 3px solid rgba(0,200,255,0.3);
}

.expert-name {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.expert-role {
  font-size: 0.82rem;
  color: var(--cyan);
  margin-bottom: 12px;
  font-weight: 600;
}

.expert-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

.expert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 14px;
}

.expert-btns {
  display: flex;
  gap: 8px;
  justify-content: center;
}

/* 专家社交账号 */
.expert-social {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 14px;
}

.expert-social a {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(0,200,255,0.06);
  border: 1px solid rgba(0,200,255,0.15);
  padding: 3px 10px;
  border-radius: 12px;
  transition: var(--transition);
}

.expert-social a:hover { color: var(--cyan); border-color: var(--cyan); }

/* ============ REVIEW CARDS ============ */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.review-stars {
  color: #fbbf24;
  font-size: 1rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.review-info .name { font-size: 0.9rem; font-weight: 700; }
.review-info .date { font-size: 0.78rem; color: var(--text-muted); }

/* ============ FAQ ============ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover { border-color: rgba(0,200,255,0.3); }
.faq-item.open { border-color: rgba(0,200,255,0.4); }

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  gap: 16px;
  background: var(--card-bg);
  transition: var(--transition);
}

.faq-q:hover { color: var(--cyan); }
.faq-item.open .faq-q { color: var(--cyan); }

.faq-arrow {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--text-muted);
}

.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--cyan); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  background: rgba(0,200,255,0.03);
}

.faq-item.open .faq-a { max-height: 300px; }

.faq-a-inner {
  padding: 0 24px 18px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ============ PARTNER LOGOS ============ */
.fhxw5scx {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

.8z8cta {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 24px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
  min-width: 120px;
  text-align: center;
}

.8z8cta:hover { border-color: var(--cyan); color: var(--cyan); }

/* ============ CONTACT / QR ============ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.contact-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
}

.contact-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }

.contact-card p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 16px; }

.qr-img {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 10px;
  margin: 0 auto;
  border: 2px solid var(--border);
}

/* ============ SHARE BAR ============ */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.share-btn:hover { opacity: 0.85; transform: translateY(-2px); }
.share-wechat { background: #07c160; color: #fff; }
.share-weibo { background: #e6162d; color: #fff; }
.share-douyin { background: #010101; color: #fff; border: 1px solid #333; }
.share-bilibili { background: #00a1d6; color: #fff; }

/* ============ FOOTER ============ */
#site-footer {
  background: #050c1a;
  border-top: 1px solid var(--border);
  padding: 60px 24px 30px;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .logo-wrap { margin-bottom: 14px; }

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}

.footer-links { list-style: none; }

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-links a:hover { color: var(--cyan); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p { font-size: 0.82rem; color: var(--text-muted); }

.on6ph8bi { display: flex; align-items: center; gap: 8px; }
.on6ph8bi img { width: 32px; height: 32px; border-radius: 6px; }
.on6ph8bi span { font-size: 1rem; font-weight: 800; color: var(--text-main); }

/* ============ MCP 服务展示 ============ */
.4msrgz {
  background: rgba(0,200,255,0.03);
  border: 1px solid rgba(0,200,255,0.1);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 40px;
}

.9i8wm { max-width: 100%; }

.fnygss {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 16px;
}

.zo4to8r {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}

.omug3u8d {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(0,200,255,0.12);
  border-radius: 8px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 160px;
}

.omug3u8d-icon { font-size: 1.1rem; }
.omug3u8d-name { font-size: 0.82rem; font-weight: 600; flex: 1; }

.omug3u8d-status {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
}

.omug3u8d-status.online {
  background: rgba(16,185,129,0.15);
  color: #34d399;
  border: 1px solid rgba(16,185,129,0.25);
}

.wulr3 {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ============ BREADCRUMB ============ */
.breadcrumb {
  background: rgba(0,200,255,0.03);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.breadcrumb-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 10px 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* 新类名 */
.bc-link { color: var(--text-muted); }
.bc-link:hover { color: var(--cyan); }
.bc-sep { color: rgba(0,200,255,0.3); font-size: 0.9rem; }
.bc-current { color: var(--text-main); font-weight: 600; }

/* 兼容旧类名 */
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb .sep { color: rgba(0,200,255,0.3); }
.breadcrumb .current { color: var(--text-main); font-weight: 600; }

/* ============ TABS ============ */
.tab-nav {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 32px;
  overflow-x: auto;
  scrollbar-width: none;
}

.tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
  padding: 10px 20px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}

.tab-btn:hover { color: var(--text-main); }
.tab-btn.active { color: var(--cyan); border-bottom-color: var(--cyan); }

/* ============ TAG ============ */
.tag {
  display: inline-block;
  background: rgba(0,200,255,0.08);
  border: 1px solid rgba(0,200,255,0.18);
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.78rem;
}

/* ============ BANNER IMAGE ============ */
.img-banner {
  width: 100%;
  aspect-ratio: 16/5;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}

/* ============ LIVE BADGE ============ */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--accent);
  color: #fff;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.live-dot {
  width: 7px;
  height: 7px;
  background: #fff;
  border-radius: 50%;
  animation: blink 1.2s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ============ NOTICE BAR ============ */
.rhelcfjn {
  background: linear-gradient(90deg, rgba(232,25,44,0.15), rgba(0,200,255,0.1));
  border-bottom: 1px solid rgba(232,25,44,0.2);
  padding: 8px 24px;
  font-size: 0.83rem;
  color: var(--text-muted);
  overflow: hidden;
}

.qq3ufa {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.2s4s2 {
  background: var(--accent);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* ============ EEAT 内容审核标注 ============ */
.eeat-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(16,185,129,0.06);
  border: 1px solid rgba(16,185,129,0.15);
  padding: 4px 12px;
  border-radius: 6px;
}

.eeat-badge svg { color: #34d399; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  #main-nav a { padding: 8px 10px; font-size: 0.85rem; }
}

@media (max-width: 768px) {
  #main-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(8,15,31,0.98);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    gap: 4px;
    z-index: 999;
  }

  #main-nav.open { display: flex; }
  #main-nav a { padding: 12px 16px; width: 100%; }
  .menu-toggle { display: flex; }

  .6isvyt { padding: 8px 16px; }
  .z3nimsq9 { flex-direction: column; align-items: stretch; gap: 8px; }
  .j4t87 { max-width: 100%; }
  .ihtjyy1 { display: none; }

  .hero { min-height: 480px; }
  .3b8yt1 { gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .zo4to8r { gap: 8px; }
  .omug3u8d { min-width: 140px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .yucq0wh { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  /* 搜索框在移动端保持显示，不隐藏 */
  .j4t87 input { font-size: 0.85rem; }
  .video-grid { grid-template-columns: 1fr; }
  .omug3u8d { min-width: 100%; }
}

/* ============ UTILITY ============ */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.hidden { display: none; }

/* 懒加载占位 */
img[data-src] { background: var(--card-bg); }