/* ===== 糖心Vlog 主样式表 ===== */
:root {
  --primary: #e8315a;
  --primary-dark: #c0254a;
  --secondary: #ff6b8a;
  --accent: #ff9eb5;
  --dark: #1a1a2e;
  --dark-2: #16213e;
  --gray: #6c757d;
  --light-gray: #f8f9fa;
  --border: #e9ecef;
  --white: #ffffff;
  --text: #333333;
  --text-light: #666666;
  --font: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', sans-serif;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 24px rgba(232,49,90,0.15);
  --radius: 8px;
  --radius-lg: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: #f5f5f7;
  line-height: 1.6;
  font-size: 15px;
}

a { color: inherit; text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.section { padding: 40px 0; }
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 20px;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.section-title .more-link {
  font-size: 13px;
  font-weight: 400;
  color: var(--gray);
  border: none;
  padding: 0;
}
.section-title .more-link:hover { color: var(--primary); }

/* ===== 顶部公告栏 ===== */
.top-bar {
  background: var(--dark);
  color: #ccc;
  font-size: 12px;
  padding: 6px 0;
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.top-bar a { color: #ccc; }
.top-bar a:hover { color: var(--accent); }
.top-bar-left { display: flex; align-items: center; gap: 16px; }
.top-bar-right { display: flex; align-items: center; gap: 12px; }
.live-badge {
  background: var(--primary);
  color: white;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 11px;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity:1; }
  50% { opacity:0.7; }
}

/* ===== 头部 ===== */
.site-header {
  background: var(--white);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 20px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  font-weight: 900;
}
.logo-text { font-size: 20px; font-weight: 800; color: var(--dark); }
.logo-text span { color: var(--primary); }
.logo-sub { font-size: 11px; color: var(--gray); margin-top: 1px; }

/* 主导航 */
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: all 0.2s;
}
.main-nav a:hover, .main-nav a.active {
  background: rgba(232,49,90,0.08);
  color: var(--primary);
}
.main-nav .nav-hot {
  background: var(--primary);
  color: white;
  border-radius: 6px;
}
.main-nav .nav-hot:hover { background: var(--primary-dark); color: white; }

/* 头部右侧 */
.header-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.btn-subscribe {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-subscribe:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(232,49,90,0.3); }

/* ===== 搜索框 ===== */
.search-bar-wrap {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  padding: 16px 0;
  border-bottom: 3px solid var(--primary);
}
.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto;
}
.search-label {
  color: var(--accent);
  font-size: 13px;
  white-space: nowrap;
  font-weight: 600;
}
.search-form {
  flex: 1;
  display: flex;
  background: white;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}
.search-input {
  flex: 1;
  border: none;
  outline: none;
  padding: 10px 18px;
  font-size: 14px;
  font-family: var(--font);
  color: var(--text);
}
.search-btn {
  background: var(--primary);
  border: none;
  padding: 10px 22px;
  color: white;
  font-size: 14px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s;
}
.search-btn:hover { background: var(--primary-dark); }
.search-hot-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
  justify-content: center;
}
.search-hot-tags span { color: #aaa; font-size: 12px; }
.hot-tag {
  color: var(--accent);
  font-size: 12px;
  cursor: pointer;
  padding: 2px 8px;
  border: 1px solid rgba(255,158,181,0.3);
  border-radius: 12px;
  transition: all 0.2s;
}
.hot-tag:hover { background: var(--primary); color: white; border-color: var(--primary); }

/* ===== 面包屑 ===== */
.breadcrumb {
  background: white;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--gray);
}
.breadcrumb a { color: var(--gray); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

/* ===== 主内容区 ===== */
.main-content { padding: 24px 0; }
.content-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
}

/* ===== Banner/头条 ===== */
.hero-section { margin-bottom: 24px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 16px;
  height: 360px;
}
.hero-main {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}
.hero-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.hero-main:hover img { transform: scale(1.03); }
.hero-main-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  padding: 40px 20px 20px;
  color: white;
}
.hero-category {
  background: var(--primary);
  color: white;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 12px;
  display: inline-block;
  margin-bottom: 8px;
}
.hero-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}
.hero-meta { font-size: 12px; opacity: 0.8; display: flex; gap: 12px; }

.hero-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hero-side-item {
  flex: 1;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
}
.hero-side-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.hero-side-item:hover img { transform: scale(1.05); }
.hero-side-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.75));
  padding: 24px 12px 10px;
  color: white;
}
.hero-side-title { font-size: 13px; font-weight: 600; line-height: 1.4; }

/* ===== 视频卡片 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.video-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.video-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
  background: #000;
}
.video-thumb img {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 52px;
  height: 52px;
  background: rgba(232,49,90,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  z-index: 2;
}
.video-play-btn::after {
  content: '';
  border-left: 18px solid white;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  margin-left: 4px;
}
.video-card:hover .video-play-btn { transform: translate(-50%, -50%) scale(1); }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: white;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--primary);
  color: white;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info { padding: 12px; }
.video-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--text);
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--gray);
}
.video-stats { display: flex; gap: 10px; }
.video-stat { display: flex; align-items: center; gap: 3px; }
.video-author { font-size: 12px; color: var(--primary); font-weight: 500; }

/* ===== 新闻列表 ===== */
.news-list { display: flex; flex-direction: column; gap: 0; }
.news-item {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}
.news-item:last-child { border-bottom: none; }
.news-thumb {
  width: 100px;
  height: 68px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-body { flex: 1; }
.news-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-title:hover { color: var(--primary); }
.news-desc {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.5;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-footer {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--gray);
}
.news-cat {
  background: rgba(232,49,90,0.08);
  color: var(--primary);
  padding: 1px 8px;
  border-radius: 4px;
  font-size: 11px;
}

/* ===== 侧边栏 ===== */
.sidebar { display: flex; flex-direction: column; gap: 20px; }
.sidebar-widget {
  background: white;
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow);
}
.widget-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  gap: 6px;
}
.widget-title::before {
  content: '';
  width: 4px;
  height: 16px;
  background: var(--primary);
  border-radius: 2px;
}

/* 热门标签 */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-item {
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 12px;
  border: 1px solid var(--border);
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
}
.tag-item:hover { background: var(--primary); color: white; border-color: var(--primary); }
.tag-item.hot { background: rgba(232,49,90,0.08); color: var(--primary); border-color: rgba(232,49,90,0.2); }

/* 推荐作者 */
.author-list { display: flex; flex-direction: column; gap: 12px; }
.author-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.2s;
  cursor: pointer;
}
.author-item:hover { background: var(--light-gray); }
.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.author-info { flex: 1; }
.author-name { font-size: 14px; font-weight: 600; color: var(--text); }
.author-role { font-size: 12px; color: var(--gray); }
.author-count { font-size: 12px; color: var(--primary); font-weight: 600; }

/* 热门排行 */
.rank-list { display: flex; flex-direction: column; gap: 10px; }
.rank-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}
.rank-num {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: var(--light-gray);
  color: var(--gray);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.rank-num.top1 { background: #e8315a; color: white; }
.rank-num.top2 { background: #ff6b35; color: white; }
.rank-num.top3 { background: #ffa500; color: white; }
.rank-title { font-size: 13px; line-height: 1.5; color: var(--text); }
.rank-title:hover { color: var(--primary); }

/* ===== 专题卡片 ===== */
.special-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.special-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s;
}
.special-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.special-cover {
  position: relative;
  height: 140px;
  overflow: hidden;
}
.special-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.special-card:hover .special-cover img { transform: scale(1.05); }
.special-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}
.special-body { padding: 14px; }
.special-title { font-size: 15px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.special-desc { font-size: 13px; color: var(--text-light); line-height: 1.5; margin-bottom: 10px; }
.special-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--gray);
}
.special-count { color: var(--primary); font-weight: 600; }

/* ===== 用户评论 ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.review-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow);
  border-left: 3px solid var(--primary);
}
.review-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.review-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 14px;
  font-weight: 700;
}
.review-user { font-size: 14px; font-weight: 600; }
.review-stars { color: #ffc107; font-size: 13px; margin-top: 2px; }
.review-text { font-size: 14px; color: var(--text-light); line-height: 1.6; }
.review-date { font-size: 12px; color: var(--gray); margin-top: 8px; }

/* ===== FAQ ===== */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.faq-question {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text);
  transition: color 0.2s;
  user-select: none;
}
.faq-question:hover { color: var(--primary); }
.faq-question::after {
  content: '+';
  font-size: 20px;
  color: var(--primary);
  transition: transform 0.3s;
  flex-shrink: 0;
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer-inner {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.faq-item.open .faq-answer { max-height: 200px; }

/* ===== 联系/投稿 ===== */
.contact-section {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  border-radius: var(--radius-lg);
  padding: 32px;
  color: white;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}
.contact-info h3 { font-size: 20px; margin-bottom: 12px; }
.contact-info p { color: #aaa; font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.contact-items { display: flex; flex-direction: column; gap: 10px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #ccc;
}
.contact-icon {
  width: 32px;
  height: 32px;
  background: rgba(232,49,90,0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.contact-form { display: flex; flex-direction: column; gap: 12px; }
.form-input, .form-textarea {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  padding: 12px 16px;
  color: white;
  font-size: 14px;
  font-family: var(--font);
  transition: border-color 0.2s;
  outline: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: rgba(255,255,255,0.4); }
.form-input:focus, .form-textarea:focus { border-color: var(--primary); }
.form-textarea { resize: vertical; min-height: 90px; }
.form-submit {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
  padding: 12px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.form-submit:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(232,49,90,0.4); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  color: #aaa;
  padding: 40px 0 0;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo-text { color: white; font-size: 18px; }
.footer-brand .logo-text span { color: var(--primary); }
.footer-brand p { font-size: 13px; line-height: 1.7; margin-top: 10px; color: #888; }
.footer-col h4 { color: white; font-size: 14px; font-weight: 700; margin-bottom: 14px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a { font-size: 13px; color: #888; transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--primary); }
.footer-bottom {
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: #666;
}
.footer-bottom a { color: #666; }
.footer-bottom a:hover { color: var(--primary); }
.footer-links { display: flex; gap: 16px; }
.update-time { color: var(--primary); font-size: 12px; }

/* ===== 移动端适配 ===== */
@media (max-width: 1024px) {
  .content-grid { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; height: auto; }
  .hero-side { display: none; }
  .hero-main { height: 240px; }
  .special-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .main-nav { display: none; }
  .header-right .btn-subscribe { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .top-bar-left { display: none; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .container { padding: 0 12px; }
  .section { padding: 24px 0; }
}

/* ===== 通用工具类 ===== */
.text-primary { color: var(--primary); }
.text-gray { color: var(--gray); }
.bg-white { background: white; border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow); }
.mb-16 { margin-bottom: 16px; }
.mt-16 { margin-top: 16px; }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-8 { gap: 8px; }
.font-bold { font-weight: 700; }

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #ccc; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ===== 加载动画 ===== */
.fade-in { animation: fadeIn 0.5s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ===== 分页 ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 24px;
}
.page-btn {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: white;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.page-btn:hover, .page-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ===== 移动端汉堡菜单 ===== */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}
@media (max-width: 768px) {
  .mobile-menu-btn { display: flex; }
}

/* ===== 视频播放遮罩 ===== */
.video-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.9);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.video-overlay.active { display: flex; }
.video-overlay-inner {
  width: 90%;
  max-width: 800px;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}
.video-overlay-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: white;
  font-size: 18px;
  z-index: 1;
}
.video-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: #111;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  gap: 12px;
}
.video-placeholder-icon {
  width: 72px;
  height: 72px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.video-placeholder-icon::after {
  content: '';
  border-left: 26px solid white;
  border-top: 16px solid transparent;
  border-bottom: 16px solid transparent;
  margin-left: 6px;
}

/* 搜索提示 */
.search-tip {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: white;
  border-radius: 0 0 12px 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  padding: 12px;
  z-index: 200;
}
.search-tip-item {
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.2s;
}
.search-tip-item:hover { background: var(--light-gray); color: var(--primary); }