/* 糖心vlog - 91shipin24.com | 剑来风格主题 */
/* 原创配色：深墨藏青 + 朱砂红 + 金色 */

:root {
  --primary: #1a1a2e;
  --secondary: #16213e;
  --accent: #c0392b;
  --gold: #d4af37;
  --gold-light: #f0d060;
  --text-main: #e8e0d0;
  --text-sub: #a89880;
  --text-dark: #2c2c3e;
  --card-bg: #1e2240;
  --card-border: rgba(212,175,55,0.25);
  --nav-bg: rgba(16,21,46,0.97);
  --footer-bg: #0d0f1e;
  --ink-shadow: 0 4px 24px rgba(192,57,43,0.18);
  --gold-shadow: 0 2px 12px rgba(212,175,55,0.22);
  --radius: 10px;
  --radius-lg: 18px;
  --transition: 0.32s cubic-bezier(.4,0,.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', 'Noto Sans SC', sans-serif;
  background: var(--primary);
  color: var(--text-main);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

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

/* ===== 链接 ===== */
a { color: var(--gold); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold-light); }

/* ===== 干扰标签隐藏 ===== */
.disturbance-wrap { display: none !important; visibility: hidden !important; height: 0 !important; overflow: hidden !important; }

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: var(--nav-bg);
  border-bottom: 1px solid rgba(212,175,55,0.18);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 64px;
}

.site-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.35rem; font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.04em;
}
.site-logo img {
  width: 38px; height: 38px; border-radius: 50%;
  border: 2px solid var(--gold);
  object-fit: cover;
}
.site-logo .logo-text { color: var(--gold); }
.site-logo .logo-sub { font-size: 0.7rem; color: var(--text-sub); font-weight: 400; display: block; line-height: 1; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 6px 14px; border-radius: 6px;
  color: var(--text-main); font-size: 0.92rem;
  transition: all var(--transition);
}
.main-nav a:hover, .main-nav a.active {
  background: rgba(192,57,43,0.18);
  color: var(--gold);
}

.header-actions { display: flex; align-items: center; gap: 10px; }
.btn-login {
  padding: 7px 18px; border-radius: 20px;
  background: linear-gradient(135deg, var(--accent), #8b0000);
  color: #fff; font-size: 0.88rem; font-weight: 600;
  border: none; cursor: pointer;
  transition: all var(--transition);
  box-shadow: var(--ink-shadow);
}
.btn-login:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(192,57,43,0.4); }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { width: 24px; height: 2px; background: var(--gold); border-radius: 2px; transition: all var(--transition); }

/* ===== 搜索框 ===== */
.search-bar-wrap {
  background: var(--secondary);
  border-bottom: 1px solid rgba(212,175,55,0.1);
  padding: 10px 0;
}
.search-bar-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 12px;
}
.search-form {
  display: flex; align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(212,175,55,0.2);
  border-radius: 24px; overflow: hidden;
  flex: 1; max-width: 560px;
  transition: border-color var(--transition);
}
.search-form:focus-within { border-color: var(--gold); }
.search-form input {
  flex: 1; padding: 8px 16px;
  background: transparent; border: none; outline: none;
  color: var(--text-main); font-size: 0.92rem;
}
.search-form input::placeholder { color: var(--text-sub); }
.search-form button {
  padding: 8px 18px;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  border: none; cursor: pointer; color: #fff;
  font-size: 0.9rem; font-weight: 600;
  transition: opacity var(--transition);
}
.search-form button:hover { opacity: 0.85; }
.search-hot { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.search-hot span { font-size: 0.78rem; color: var(--text-sub); }
.search-hot a {
  font-size: 0.78rem; color: var(--text-sub);
  padding: 2px 8px; border-radius: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(212,175,55,0.12);
  transition: all var(--transition);
}
.search-hot a:hover { color: var(--gold); border-color: var(--gold); }

/* ===== 主内容区 ===== */
.page-main { padding-top: 110px; }

/* ===== Hero Banner ===== */
.hero-banner {
  position: relative; overflow: hidden;
  min-height: 520px;
  display: flex; align-items: center; justify-content: center;
  background: var(--secondary);
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('../images/banner_bg.jpg');
  background-size: cover; background-position: center;
  filter: brightness(0.45);
  transform: scale(1.04);
  transition: transform 8s ease;
}
.hero-banner:hover .hero-bg { transform: scale(1.08); }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.82) 0%, rgba(192,57,43,0.22) 60%, rgba(212,175,55,0.08) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  text-align: center; padding: 60px 24px;
  max-width: 800px;
}
.hero-badge {
  display: inline-block; margin-bottom: 16px;
  padding: 4px 16px; border-radius: 20px;
  background: rgba(192,57,43,0.28);
  border: 1px solid rgba(192,57,43,0.5);
  font-size: 0.82rem; color: #ff8080;
  letter-spacing: 0.08em;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800; line-height: 1.2;
  color: #fff; margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.6);
}
.hero-title .brand { color: var(--gold); }
.hero-desc {
  font-size: 1.05rem; color: rgba(255,255,255,0.82);
  margin-bottom: 28px; line-height: 1.8;
}
.hero-stats {
  display: flex; justify-content: center; gap: 32px;
  margin-bottom: 28px; flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 1.6rem; font-weight: 800; color: var(--gold); }
.hero-stat .label { font-size: 0.78rem; color: rgba(255,255,255,0.6); }
.hero-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  padding: 12px 28px; border-radius: 28px;
  background: linear-gradient(135deg, var(--accent) 0%, #8b0000 100%);
  color: #fff; font-size: 1rem; font-weight: 700;
  border: none; cursor: pointer;
  box-shadow: 0 4px 20px rgba(192,57,43,0.45);
  transition: all var(--transition);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(192,57,43,0.55); color: #fff; }
.btn-outline {
  padding: 12px 28px; border-radius: 28px;
  background: transparent;
  border: 2px solid var(--gold);
  color: var(--gold); font-size: 1rem; font-weight: 700;
  cursor: pointer; transition: all var(--transition);
}
.btn-outline:hover { background: var(--gold); color: var(--primary); }

/* ===== 通用区块 ===== */
.section { padding: 64px 0; }
.section-alt { background: var(--secondary); }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section-header { text-align: center; margin-bottom: 40px; }
.section-tag {
  display: inline-block; margin-bottom: 10px;
  padding: 3px 14px; border-radius: 14px;
  background: rgba(192,57,43,0.18);
  border: 1px solid rgba(192,57,43,0.35);
  font-size: 0.78rem; color: var(--accent);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800; color: #fff;
  margin-bottom: 10px;
}
.section-title .brand { color: var(--gold); }
.section-sub { font-size: 0.95rem; color: var(--text-sub); max-width: 560px; margin: 0 auto; }

/* ===== 视频卡片 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.video-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-5px);
  border-color: var(--gold);
  box-shadow: 0 12px 36px rgba(212,175,55,0.18);
}
.video-thumb {
  position: relative; overflow: hidden;
  aspect-ratio: 16/9;
  background: #0d0f1e;
}
.video-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.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);
  opacity: 0; transition: all var(--transition);
}
.video-card:hover .video-play-btn { opacity: 1; background: rgba(0,0,0,0.38); }
.play-icon {
  width: 54px; height: 54px; border-radius: 50%;
  background: rgba(192,57,43,0.9);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(192,57,43,0.6);
  transform: scale(0.8); transition: transform var(--transition);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon::after {
  content: '';
  width: 0; height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}
.video-duration {
  position: absolute; bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.75); color: #fff;
  font-size: 0.75rem; padding: 2px 7px; border-radius: 4px;
}
.video-info { padding: 14px 16px; }
.video-title {
  font-size: 0.95rem; 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-meta {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.78rem; color: var(--text-sub);
}
.video-stats { display: flex; gap: 12px; }
.video-stats span::before { margin-right: 3px; }
.video-tag {
  padding: 2px 8px; border-radius: 8px;
  background: rgba(192,57,43,0.18);
  color: var(--accent); font-size: 0.72rem;
}

/* ===== 分类导航 ===== */
.cat-tabs {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 28px;
}
.cat-tab {
  padding: 7px 18px; border-radius: 20px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(212,175,55,0.15);
  color: var(--text-sub); font-size: 0.88rem;
  cursor: pointer; transition: all var(--transition);
}
.cat-tab:hover, .cat-tab.active {
  background: rgba(192,57,43,0.2);
  border-color: var(--accent);
  color: #fff;
}

/* ===== 功能模块卡片 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  transition: all var(--transition);
}
.feature-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: var(--gold-shadow);
}
.feature-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(192,57,43,0.25), rgba(212,175,55,0.15));
  border: 2px solid rgba(212,175,55,0.3);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.6rem;
}
.feature-title { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.feature-desc { font-size: 0.85rem; color: var(--text-sub); line-height: 1.6; }

/* ===== AI赋能区 ===== */
.ai-section { background: linear-gradient(135deg, var(--primary) 0%, rgba(192,57,43,0.08) 50%, var(--secondary) 100%); }
.ai-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
  align-items: center;
}
.ai-content { }
.ai-title { font-size: 1.8rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
.ai-title .brand { color: var(--gold); }
.ai-desc { color: var(--text-sub); margin-bottom: 24px; line-height: 1.8; }
.ai-features { list-style: none; }
.ai-features li {
  display: flex; align-items: flex-start; gap: 12px;
  margin-bottom: 16px; padding: 14px 16px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent);
}
.ai-features li .icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.ai-features li .text h4 { font-size: 0.95rem; color: #fff; margin-bottom: 4px; }
.ai-features li .text p { font-size: 0.82rem; color: var(--text-sub); }
.ai-visual {
  position: relative; border-radius: var(--radius-lg);
  overflow: hidden; aspect-ratio: 4/3;
  border: 1px solid var(--card-border);
}
.ai-visual img { width: 100%; height: 100%; object-fit: cover; }
.ai-visual-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(26,26,46,0.8) 0%, transparent 60%);
  display: flex; align-items: flex-end; padding: 20px;
}
.ai-visual-tag {
  padding: 6px 14px; border-radius: 20px;
  background: rgba(192,57,43,0.8);
  color: #fff; font-size: 0.82rem; font-weight: 600;
}

/* ===== 专家展示 ===== */
.expert-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 22px;
}
.expert-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden; transition: all var(--transition);
}
.expert-card:hover { border-color: var(--gold); transform: translateY(-4px); box-shadow: var(--gold-shadow); }
.expert-photo { aspect-ratio: 3/4; overflow: hidden; }
.expert-photo img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.expert-card:hover .expert-photo img { transform: scale(1.05); }
.expert-info { padding: 16px; }
.expert-name { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.expert-role { font-size: 0.82rem; color: var(--accent); margin-bottom: 8px; }
.expert-desc { font-size: 0.82rem; color: var(--text-sub); margin-bottom: 12px; line-height: 1.6; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.expert-award {
  font-size: 0.72rem; padding: 2px 8px; border-radius: 8px;
  background: rgba(212,175,55,0.12); color: var(--gold);
  border: 1px solid rgba(212,175,55,0.2);
}
.expert-actions { display: flex; gap: 8px; }
.btn-sm {
  flex: 1; padding: 7px 12px; border-radius: 8px;
  font-size: 0.8rem; font-weight: 600; text-align: center;
  cursor: pointer; transition: all var(--transition); border: none;
}
.btn-sm-primary { background: var(--accent); color: #fff; }
.btn-sm-primary:hover { background: #a93226; color: #fff; }
.btn-sm-outline { background: transparent; border: 1px solid var(--gold); color: var(--gold); }
.btn-sm-outline:hover { background: var(--gold); color: var(--primary); }

/* ===== 社区功能 ===== */
.community-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.community-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 22px 16px; text-align: center;
  transition: all var(--transition); cursor: pointer;
}
.community-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.community-icon { font-size: 2rem; margin-bottom: 10px; }
.community-name { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.community-count { font-size: 0.8rem; color: var(--text-sub); }
.community-count strong { color: var(--gold); }

/* ===== 合作品牌 ===== */
.partner-grid {
  display: flex; flex-wrap: wrap; gap: 16px;
  justify-content: center; align-items: center;
}
.partner-item {
  padding: 12px 24px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(212,175,55,0.15);
  border-radius: var(--radius);
  font-size: 0.9rem; color: var(--text-sub);
  transition: all var(--transition);
}
.partner-item:hover { border-color: var(--gold); color: var(--gold); background: rgba(212,175,55,0.08); }

/* ===== 用户评论 ===== */
.review-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: all var(--transition);
}
.review-card:hover { border-color: var(--gold); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; font-weight: 700; color: #fff; flex-shrink: 0;
}
.review-user { }
.review-name { font-size: 0.95rem; font-weight: 600; color: #fff; }
.review-date { font-size: 0.75rem; color: var(--text-sub); }
.review-stars { color: var(--gold); font-size: 0.9rem; margin-bottom: 10px; }
.review-text { font-size: 0.88rem; color: var(--text-sub); line-height: 1.7; }
.review-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.review-tag {
  font-size: 0.72rem; padding: 2px 8px; border-radius: 8px;
  background: rgba(192,57,43,0.12); color: var(--accent);
}

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-bottom: 12px; overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.open { border-color: var(--gold); }
.faq-q {
  padding: 18px 22px; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.97rem; font-weight: 600; color: #fff;
  user-select: none;
}
.faq-q .arrow {
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(212,175,55,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; color: var(--gold);
  transition: transform var(--transition); flex-shrink: 0;
}
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 22px;
}
.faq-item.open .faq-a { max-height: 300px; padding: 0 22px 18px; }
.faq-a p { font-size: 0.88rem; color: var(--text-sub); line-height: 1.8; }

/* ===== 联系我们 ===== */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.contact-info { }
.contact-title { font-size: 1.4rem; font-weight: 700; color: #fff; margin-bottom: 20px; }
.contact-item {
  display: flex; align-items: flex-start; gap: 14px;
  margin-bottom: 18px; padding: 16px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius);
  border-left: 3px solid var(--gold);
}
.contact-item .ci-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.contact-item .ci-text h4 { font-size: 0.9rem; color: var(--gold); margin-bottom: 4px; }
.contact-item .ci-text p { font-size: 0.85rem; color: var(--text-sub); }
.qrcode-area {
  display: flex; gap: 20px; justify-content: center;
  flex-wrap: wrap;
}
.qrcode-box { text-align: center; }
.qrcode-box img {
  width: 130px; height: 130px; border-radius: var(--radius);
  border: 2px solid var(--card-border);
}
.qrcode-box p { font-size: 0.8rem; color: var(--text-sub); margin-top: 8px; }

/* ===== 社交分享 ===== */
.share-bar {
  display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;
  padding: 20px 0;
}
.share-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 20px;
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  border: none; transition: all var(--transition);
}
.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; }
.share-btn:hover { transform: translateY(-2px); opacity: 0.9; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--footer-bg);
  border-top: 1px solid rgba(212,175,55,0.12);
  padding: 48px 0 24px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px; margin-bottom: 36px;
}
.footer-brand .logo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand .logo img { width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--gold); }
.footer-brand .logo span { font-size: 1.2rem; font-weight: 700; color: var(--gold); }
.footer-brand p { font-size: 0.85rem; color: var(--text-sub); line-height: 1.8; margin-bottom: 16px; }
.footer-col h4 { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 14px; padding-bottom: 8px; border-bottom: 1px solid rgba(212,175,55,0.15); }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.85rem; color: var(--text-sub); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: 0.8rem; color: var(--text-sub); }
.footer-bottom a { color: var(--text-sub); }
.footer-bottom a:hover { color: var(--gold); }
.footer-update { font-size: 0.78rem; color: rgba(255,255,255,0.35); }

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 12px 0; font-size: 0.82rem;
  display: flex; align-items: center; gap: 6px;
  color: var(--text-sub);
}
.breadcrumb a { color: var(--text-sub); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: var(--gold); }

/* ===== 内页标题区 ===== */
.page-hero {
  background: linear-gradient(135deg, var(--secondary), rgba(192,57,43,0.12));
  border-bottom: 1px solid rgba(212,175,55,0.12);
  padding: 36px 0;
}
.page-hero h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; color: #fff; margin-bottom: 8px; }
.page-hero h1 .brand { color: var(--gold); }
.page-hero p { font-size: 0.95rem; color: var(--text-sub); }

/* ===== 分页 ===== */
.pagination {
  display: flex; gap: 8px; justify-content: center;
  margin-top: 36px; flex-wrap: wrap;
}
.page-btn {
  width: 36px; height: 36px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  background: var(--card-bg); border: 1px solid var(--card-border);
  color: var(--text-sub); font-size: 0.88rem; cursor: pointer;
  transition: all var(--transition);
}
.page-btn:hover, .page-btn.active {
  background: var(--accent); border-color: var(--accent); color: #fff;
}

/* ===== 加载更多 ===== */
.load-more-wrap { text-align: center; margin-top: 36px; }
.btn-load-more {
  padding: 12px 36px; border-radius: 28px;
  background: transparent; border: 2px solid var(--gold);
  color: var(--gold); font-size: 0.95rem; font-weight: 600;
  cursor: pointer; transition: all var(--transition);
}
.btn-load-more:hover { background: var(--gold); color: var(--primary); }

/* ===== 标签云 ===== */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-item {
  padding: 5px 14px; border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(212,175,55,0.15);
  color: var(--text-sub); font-size: 0.82rem;
  cursor: pointer; transition: all var(--transition);
}
.tag-item:hover { border-color: var(--gold); color: var(--gold); background: rgba(212,175,55,0.08); }

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

@media (max-width: 768px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--nav-bg); padding: 16px; gap: 4px; border-bottom: 1px solid rgba(212,175,55,0.15); }
  .main-nav.open { display: flex; }
  .hamburger { display: flex; }
  .header-actions .btn-login { display: none; }
  .hero-stats { gap: 20px; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .expert-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .footer-grid { grid-template-columns: 1fr; }
  .search-hot { display: none; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.6rem; }
  .hero-btns { flex-direction: column; align-items: center; }
  .video-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 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 forwards; }

@keyframes inkFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.ink-gradient {
  background: linear-gradient(270deg, var(--accent), var(--gold), var(--accent));
  background-size: 200% 200%;
  animation: inkFlow 4s ease infinite;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== 视频弹窗 ===== */
.video-modal {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.88);
  align-items: center; justify-content: center;
}
.video-modal.show { display: flex; }
.video-modal-inner {
  position: relative; width: 90%; max-width: 860px;
  background: var(--card-bg); border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  overflow: hidden;
}
.video-modal-close {
  position: absolute; top: 12px; right: 14px; z-index: 10;
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(0,0,0,0.6); border: none; cursor: pointer;
  color: #fff; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
}
.video-modal-player {
  aspect-ratio: 16/9; background: #000;
  display: flex; align-items: center; justify-content: center;
}
.video-modal-player .mock-player {
  text-align: center; color: rgba(255,255,255,0.5);
}
.video-modal-player .mock-player .big-play {
  width: 80px; height: 80px; border-radius: 50%;
  background: rgba(192,57,43,0.7);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; font-size: 2rem; cursor: pointer;
}
.video-modal-info { padding: 16px 20px; }
.video-modal-title { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.video-modal-meta { font-size: 0.82rem; color: var(--text-sub); }