/* ============================================
   小马拉大车传媒 - 主样式文件
   yfhuoeka.cn
   ============================================ */

/* CSS变量 */
:root {
  --primary: #e8547a;
  --primary-dark: #c73d62;
  --primary-light: #f9d0db;
  --secondary: #2d2d5e;
  --accent: #ff8fab;
  --gold: #f5a623;
  --bg-main: #fdf6f8;
  --bg-dark: #1a1a2e;
  --bg-card: #ffffff;
  --text-main: #2c2c3e;
  --text-muted: #7a7a9a;
  --text-light: #ffffff;
  --border: #f0dde5;
  --shadow: 0 4px 24px rgba(232,84,122,0.10);
  --shadow-hover: 0 8px 40px rgba(232,84,122,0.22);
  --radius: 14px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', Arial, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
ul { list-style: none; }

/* ============ 顶部公告栏 ============ */
.top-bar {
  background: linear-gradient(90deg, var(--secondary) 0%, #4a1942 100%);
  color: #fff;
  font-size: 13px;
  padding: 6px 0;
  text-align: center;
  letter-spacing: 0.5px;
}
.top-bar a { color: var(--accent); }

/* ============ 头部导航 ============ */
.site-header {
  background: #fff;
  box-shadow: 0 2px 16px rgba(232,84,122,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-icon {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #fff;
  font-weight: 900;
  letter-spacing: -1px;
  box-shadow: 0 4px 12px rgba(232,84,122,0.35);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-name { font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: 2px; }
.logo-slogan { font-size: 11px; color: var(--text-muted); letter-spacing: 1px; }

/* 主导航 */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
  position: relative;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
  background: var(--primary-light);
}
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-btn {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: 24px !important;
  font-weight: 600 !important;
  box-shadow: 0 4px 12px rgba(232,84,122,0.3);
}
.nav-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(232,84,122,0.4); background: var(--primary-dark) !important; }

/* 汉堡菜单 */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { width: 24px; height: 2px; background: var(--text-main); border-radius: 2px; transition: var(--transition); }

/* ============ 搜索框 ============ */
.search-bar-wrap {
  background: linear-gradient(135deg, #fff0f4 0%, #fff 100%);
  border-bottom: 1px solid var(--border);
  padding: 12px 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: #fff;
  border: 2px solid var(--border);
  border-radius: 32px;
  overflow: hidden;
  flex: 1;
  max-width: 600px;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(232,84,122,0.06);
}
.search-form:focus-within { border-color: var(--primary); box-shadow: 0 4px 16px rgba(232,84,122,0.15); }
.search-form input {
  flex: 1;
  border: none;
  outline: none;
  padding: 10px 20px;
  font-size: 14px;
  background: transparent;
  color: var(--text-main);
}
.search-form button {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border: none;
  color: #fff;
  padding: 10px 24px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  letter-spacing: 0.5px;
}
.search-form button:hover { background: var(--primary-dark); }
.search-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.search-tag {
  background: var(--primary-light);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
}
.search-tag:hover { background: var(--primary); color: #fff; }

/* ============ 面包屑 ============ */
.breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

/* ============ 通用容器 ============ */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.section-sm { padding: 48px 0; }
.section-title {
  text-align: center;
  margin-bottom: 48px;
}
.section-title h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}
.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}
.section-title p { color: var(--text-muted); font-size: 16px; margin-top: 16px; }
.section-title .tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 4px 14px;
  border-radius: 16px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

/* ============ Hero 横幅 ============ */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--secondary) 0%, #4a1942 60%, var(--primary-dark) 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero_banner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(45,45,94,0.85) 0%, rgba(199,61,98,0.6) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-text h1 {
  font-size: 52px;
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-text h1 span { color: var(--accent); }
.hero-text p {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 32px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  box-shadow: 0 6px 20px rgba(232,84,122,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(232,84,122,0.5); color: #fff; }
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-outline:hover { background: rgba(255,255,255,0.15); border-color: #fff; color: #fff; }
.hero-stats { display: flex; gap: 32px; margin-top: 40px; }
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 28px; font-weight: 800; color: var(--accent); }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.7); }
.hero-visual { position: relative; }
.hero-video-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.hero-video-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; opacity: 0.8; }
.hero-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-play-btn svg { width: 64px; height: 64px; filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4)); }
.hero-video-card:hover .hero-play-btn { background: rgba(232,84,122,0.4); }
.hero-tags { display: flex; gap: 8px; flex-wrap: wrap; padding: 16px; }
.hero-tag {
  background: rgba(255,255,255,0.15);
  color: #fff;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
}

/* ============ 视频卡片 ============ */
.video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.video-card {
  background: var(--bg-card);
  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-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #1a1a2e;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.video-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .video-play-overlay { opacity: 1; }
.play-icon {
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transform: scale(0.8);
  transition: var(--transition);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon::after {
  content: '';
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 18px solid var(--primary);
  margin-left: 4px;
}
.video-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;
}
.video-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-info { padding: 14px; }
.video-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.5;
  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: 12px; color: var(--text-muted); }
.video-stats { display: flex; gap: 10px; }
.video-stat { display: flex; align-items: center; gap: 3px; }

/* ============ 分类标签栏 ============ */
.category-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.cat-tab {
  padding: 8px 20px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 2px solid var(--border);
  background: #fff;
  color: var(--text-muted);
  transition: var(--transition);
}
.cat-tab:hover, .cat-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ============ 功能模块卡片 ============ */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
  background: var(--primary-light);
}
.feature-card h3 { font-size: 18px; font-weight: 700; color: var(--secondary); margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  margin-top: 16px;
}

/* ============ 专家卡片 ============ */
.xof9325 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.xf6p7f2x {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}
.xf6p7f2x:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.xncw7z {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--primary-light);
}
.xncw7z img { width: 100%; height: 100%; object-fit: cover; }
.x19frrr61 {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  padding: 3px 12px;
  border-radius: 12px;
  white-space: nowrap;
  font-weight: 600;
}
.x92zj5gg { padding: 16px; }
.xtk2ud { font-size: 16px; font-weight: 700; color: var(--secondary); margin-bottom: 4px; }
.xg121q { font-size: 12px; color: var(--text-muted); margin-bottom: 10px; }
.xhdouqh4z { display: flex; justify-content: center; gap: 16px; font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }
.xkt7snh3l { display: flex; gap: 8px; justify-content: center; }
.xtl2m63x {
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--primary);
}
.xbyw043q { background: var(--primary); color: #fff; }
.xhu3svo { background: transparent; color: var(--primary); }
.xtl2m63x:hover { opacity: 0.85; }

/* ============ 评价 ============ */
.xuah15i2 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.xxmrcbia {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.xxmrcbia:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.xubyabu { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.xowqvm0 {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}
.xy2og9u5q { flex: 1; }
.xinpyu8o7 { font-size: 14px; font-weight: 600; color: var(--text-main); }
.xck7cfjo { font-size: 12px; color: var(--text-muted); }
.x57xv15k4 { color: var(--gold); font-size: 14px; margin-bottom: 10px; }
.xpccbvo { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
.xz516qh { display: inline-block; background: var(--primary-light); color: var(--primary); padding: 2px 8px; border-radius: 8px; font-size: 11px; margin-top: 10px; }

/* ============ FAQ ============ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-question {
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.faq-question::after {
  content: '+';
  font-size: 20px;
  color: var(--primary);
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-question::after { content: '−'; }
.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s 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-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; }
.partner-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
  min-width: 140px;
}
.partner-item:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow); }

/* ============ 社区入口 ============ */
.xb1obv { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.xal3vfy5 {
  background: linear-gradient(135deg, var(--secondary) 0%, #4a1942 100%);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  color: #fff;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.xal3vfy5::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(232,84,122,0.2) 0%, transparent 60%);
  transition: var(--transition);
}
.xal3vfy5:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(45,45,94,0.3); }
.xal3vfy5:hover::before { transform: scale(1.2); }
.x02ydsrg { font-size: 36px; margin-bottom: 14px; }
.xal3vfy5 h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.xal3vfy5 p { font-size: 12px; opacity: 0.8; }
.x8b79v { font-size: 20px; font-weight: 800; color: var(--accent); margin-top: 10px; }

/* ============ 联系信息 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info h3 { font-size: 22px; font-weight: 700; color: var(--secondary); margin-bottom: 24px; }
.contact-item { display: flex; gap: 14px; margin-bottom: 18px; align-items: flex-start; }
.contact-icon {
  width: 42px;
  height: 42px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-detail .label { font-size: 12px; color: var(--text-muted); margin-bottom: 2px; }
.contact-detail .value { font-size: 15px; font-weight: 600; color: var(--text-main); }
.qr-group { display: flex; gap: 24px; }
.qr-item { text-align: center; }
.qr-item img { width: 120px; height: 120px; border-radius: 12px; border: 2px solid var(--border); }
.qr-item p { font-size: 12px; color: var(--text-muted); margin-top: 8px; }

/* ============ 分享按钮 ============ */
.x7umgru { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.x8tqaafy { font-size: 14px; color: var(--text-muted); font-weight: 600; }
.xd4ani5r {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}
.x7hzdrf { background: #07c160; color: #fff; }
.xwmrn8wb { background: #e6162d; color: #fff; }
.x0akq26 { background: #010101; color: #fff; }
.xl0sjj0a { background: #00a1d6; color: #fff; }
.xd4ani5r:hover { opacity: 0.85; transform: translateY(-1px); }

/* ============ 底部 Footer ============ */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.75);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo-name { color: var(--accent); font-size: 24px; }
.footer-brand p { font-size: 13px; line-height: 1.8; margin-top: 12px; opacity: 0.7; }
.footer-qr { display: flex; gap: 16px; margin-top: 20px; }
.footer-qr-item { text-align: center; }
.footer-qr-item img { width: 80px; height: 80px; border-radius: 8px; }
.footer-qr-item p { font-size: 11px; opacity: 0.6; margin-top: 6px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.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); padding-left: 4px; }
.footer-bottom {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  opacity: 0.6;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--accent); }

/* ============ 背景色块 ============ */
.bg-pink { background: linear-gradient(135deg, #fff0f4 0%, #fff 100%); }
.bg-dark-section { background: linear-gradient(135deg, var(--secondary) 0%, #2d1b4e 100%); }
.bg-dark-section .section-title h2 { color: #fff; }
.bg-dark-section .section-title p { color: rgba(255,255,255,0.7); }
.bg-dark-section .section-title .tag { background: rgba(232,84,122,0.3); color: var(--accent); }

/* ============ 图片懒加载占位 ============ */
.lazy-placeholder {
  background: linear-gradient(90deg, #f0dde5 25%, #f9d0db 50%, #f0dde5 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ============ 移动端适配 ============ */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .xof9325 { grid-template-columns: repeat(3, 1fr); }
  .xuah15i2 { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-content { grid-template-columns: 1fr; gap: 40px; }
  .hero-text h1 { font-size: 38px; }
  .hero-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .xb1obv { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav { display: none; position: absolute; top: 70px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px; box-shadow: 0 8px 24px rgba(0,0,0,0.1); }
  .main-nav.open { display: flex; }
  .hamburger { display: flex; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .xof9325 { grid-template-columns: repeat(2, 1fr); }
  .xuah15i2 { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .section-title h2 { font-size: 24px; }
  .hero-text h1 { font-size: 30px; }
  .hero-stats { gap: 20px; }
  .search-tags { display: none; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .xb1obv { grid-template-columns: 1fr 1fr; }
  .hero-btns { flex-direction: column; }
  .btn { justify-content: center; }
}

/* ============ 页面内页 ============ */
.page-hero {
  background: linear-gradient(135deg, var(--secondary) 0%, #4a1942 100%);
  padding: 60px 0;
  text-align: center;
  color: #fff;
}
.page-hero h1 { font-size: 36px; font-weight: 800; margin-bottom: 12px; }
.page-hero p { font-size: 16px; opacity: 0.8; }

/* 标签 */
.tag-list { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.tag-item { background: var(--primary-light); color: var(--primary); padding: 4px 12px; border-radius: 12px; font-size: 12px; font-weight: 500; }

/* 加载更多 */
.load-more-wrap { text-align: center; margin-top: 40px; }

/* 工具提示 */
.tooltip { position: relative; }
.tooltip:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 120%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary);
  color: #fff;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  white-space: nowrap;
  z-index: 10;
}

/* 滚动条 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f0dde5; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }