/* =============================================
   高清3D动漫 - 原创样式系统
   品牌色：玫瑰粉 #FF6B9D | 深玫瑰 #C44569 | 橙粉 #FFA07A
   背景：深夜蓝 #0d0d1a | 卡片 #16162a | 边框 #2a2a45
   ============================================= */

/* === 基础重置 === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  background: #0d0d1a;
  color: #e0e0f0;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: #FF6B9D; text-decoration: none; transition: color .2s; }
a:hover { color: #FFA07A; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* === CSS 变量 === */
:root {
  --pink: #FF6B9D;
  --rose: #C44569;
  --coral: #FFA07A;
  --dark: #0d0d1a;
  --card: #16162a;
  --card2: #1e1e35;
  --border: #2a2a45;
  --text: #e0e0f0;
  --text-muted: #8888aa;
  --gradient: linear-gradient(135deg, #FF6B9D 0%, #C44569 50%, #FFA07A 100%);
  --gradient-soft: linear-gradient(135deg, rgba(255,107,157,.15) 0%, rgba(196,69,105,.1) 100%);
  --radius: 12px;
  --shadow: 0 4px 24px rgba(255,107,157,.12);
  --shadow-lg: 0 8px 40px rgba(255,107,157,.2);
}

/* === 容器 === */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

/* === 顶部公告栏 === */
.top-bar {
  background: var(--gradient);
  color: #fff;
  text-align: center;
  padding: 8px 20px;
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .5px;
}
.top-bar a { color: #fff; text-decoration: underline; }

/* === 导航栏 === */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,13,26,.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
}
.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 64px;
  gap: 24px;
}
.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.navbar-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}
.navbar-logo .logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.5px;
}
.navbar-logo .logo-text em {
  font-style: normal;
}
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.navbar-nav a {
  color: #c0c0d8;
  font-size: .9rem;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all .2s;
  white-space: nowrap;
}
.navbar-nav a:hover, .navbar-nav a.active {
  color: var(--pink);
  background: rgba(255,107,157,.1);
}
.navbar-search {
  display: flex;
  align-items: center;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 6px 14px;
  gap: 8px;
  min-width: 200px;
  transition: border-color .2s;
}
.navbar-search:focus-within { border-color: var(--pink); }
.navbar-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: .88rem;
  width: 100%;
}
.navbar-search input::placeholder { color: var(--text-muted); }
.navbar-search button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0;
  display: flex;
  align-items: center;
}
.navbar-search button:hover { color: var(--pink); }
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 6px;
}

/* === Hero 首屏 === */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center top;
  filter: brightness(.45);
  transform: scale(1.03);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,13,26,.85) 0%, rgba(196,69,105,.25) 60%, rgba(13,13,26,.7) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: 60px 20px 60px 40px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,107,157,.15);
  border: 1px solid rgba(255,107,157,.3);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: .8rem;
  color: var(--pink);
  margin-bottom: 20px;
}
.live-dot {
  width: 8px; height: 8px;
  background: #ff4444;
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50% { opacity:.6; transform:scale(1.3); }
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 18px;
  color: #fff;
}
.hero h1 em {
  font-style: normal;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1rem;
  color: rgba(255,255,255,.8);
  margin-bottom: 28px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient);
  color: #fff;
  padding: 12px 28px;
  border-radius: 28px;
  font-weight: 700;
  font-size: .95rem;
  border: none;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 4px 20px rgba(255,107,157,.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255,107,157,.5); color: #fff; }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  padding: 12px 28px;
  border-radius: 28px;
  font-weight: 600;
  font-size: .95rem;
  border: 2px solid rgba(255,255,255,.4);
  cursor: pointer;
  transition: all .2s;
}
.btn-outline:hover { border-color: var(--pink); color: var(--pink); background: rgba(255,107,157,.08); }
.hero-stats {
  position: absolute;
  right: 40px;
  bottom: 40px;
  display: flex;
  gap: 24px;
  z-index: 2;
}
.hero-stat {
  text-align: center;
  background: rgba(22,22,42,.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  backdrop-filter: blur(8px);
}
.hero-stat .num {
  font-size: 1.6rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat .label { font-size: .75rem; color: var(--text-muted); margin-top: 2px; }

/* === 通用 Section === */
.section { padding: 70px 0; }
.section-alt { background: var(--card); }
.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
  position: relative;
}
.section-title span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-subtitle {
  color: var(--text-muted);
  font-size: .95rem;
  margin-bottom: 40px;
  max-width: 600px;
}
.section-header { margin-bottom: 40px; }
.section-header-flex {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}
.view-all {
  color: var(--pink);
  font-size: .88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}
.view-all:hover { color: var(--coral); }

/* === 视频卡片网格 === */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.video-grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.video-card {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s, border-color .25s;
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255,107,157,.3);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #111128;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.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,.3);
  opacity: 0;
  transition: opacity .25s;
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 52px; height: 52px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(255,107,157,.5);
}
.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,.75);
  color: #fff;
  font-size: .72rem;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--gradient);
  color: #fff;
  font-size: .7rem;
  padding: 3px 9px;
  border-radius: 4px;
  font-weight: 700;
}
.video-info { padding: 14px; }
.video-title {
  font-size: .9rem;
  font-weight: 600;
  color: #fff;
  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;
  gap: 12px;
  font-size: .78rem;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* === 标签栏 === */
.tab-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.tab-btn {
  padding: 7px 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card2);
  color: var(--text-muted);
  font-size: .85rem;
  cursor: pointer;
  transition: all .2s;
}
.tab-btn:hover, .tab-btn.active {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
  font-weight: 600;
}

/* === 统计数据 === */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 50px;
}
.stat-card {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
}
.stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label { font-size: .85rem; color: var(--text-muted); }

/* === 专家展示 === */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: transform .25s, box-shadow .25s;
}
.expert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.expert-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 14px;
  border: 3px solid transparent;
  background: var(--gradient) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
}
.expert-name { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.expert-title { font-size: .8rem; color: var(--pink); margin-bottom: 10px; }
.expert-desc { font-size: .82rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 14px; }
.expert-tags { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 14px; }
.expert-tag {
  font-size: .72rem;
  padding: 3px 9px;
  border-radius: 4px;
  background: rgba(255,107,157,.12);
  color: var(--pink);
  border: 1px solid rgba(255,107,157,.2);
}
.expert-btns { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  font-size: .78rem;
  padding: 6px 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  transition: all .2s;
}
.btn-sm:hover { border-color: var(--pink); color: var(--pink); }
.btn-sm-primary {
  font-size: .78rem;
  padding: 6px 14px;
  border-radius: 16px;
  background: var(--gradient);
  color: #fff;
  border: none;
  cursor: pointer;
  font-weight: 600;
}

/* === 用户评论 === */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: 14px; right: 18px;
  font-size: 3rem;
  color: rgba(255,107,157,.15);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-stars { color: #FFD700; font-size: .9rem; margin-bottom: 10px; }
.review-text { font-size: .88rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; }
.review-user { display: flex; align-items: center; gap: 10px; }
.review-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-name { font-size: .85rem; font-weight: 600; color: #fff; }
.review-date { font-size: .75rem; color: var(--text-muted); }

/* === FAQ === */
.faq-list { max-width: 800px; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--card2);
}
.faq-question {
  padding: 18px 20px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background .2s;
  font-size: .95rem;
}
.faq-question:hover { background: rgba(255,107,157,.06); }
.faq-question.open { color: var(--pink); }
.faq-icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(255,107,157,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform .3s;
  color: var(--pink);
  font-size: 1rem;
  font-weight: 700;
}
.faq-question.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s;
  padding: 0 20px;
  color: var(--text-muted);
  font-size: .9rem;
  line-height: 1.8;
}
.faq-answer.open { max-height: 300px; padding: 0 20px 18px; }

/* === 社交分享 === */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-label { font-size: .88rem; color: var(--text-muted); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform .2s, box-shadow .2s;
}
.share-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 14px rgba(0,0,0,.3); }
.share-wechat { background: #07C160; color: #fff; }
.share-weibo { background: #E6162D; color: #fff; }
.share-douyin { background: #161823; color: #fff; border: 1px solid #333; }
.share-bilibili { background: #00A1D6; color: #fff; }

/* === 联系我们 === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info-list { display: flex; flex-direction: column; gap: 16px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.contact-icon {
  width: 40px; height: 40px;
  background: var(--gradient-soft);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-label { font-size: .78rem; color: var(--text-muted); margin-bottom: 2px; }
.contact-value { font-size: .9rem; color: #fff; font-weight: 500; }
.qrcode-row {
  display: flex;
  gap: 24px;
  justify-content: center;
}
.qrcode-item { text-align: center; }
.qrcode-item img {
  width: 130px; height: 130px;
  border-radius: 10px;
  border: 2px solid var(--border);
  object-fit: cover;
}
.qrcode-label { font-size: .78rem; color: var(--text-muted); margin-top: 8px; }

/* === 合作品牌 === */
.partners-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.partner-badge {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 20px;
  font-size: .85rem;
  color: var(--text-muted);
  font-weight: 600;
  transition: all .2s;
}
.partner-badge:hover { border-color: var(--pink); color: var(--pink); }

/* === 加入社区 How-To === */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step-card {
  text-align: center;
  padding: 28px 16px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
}
.step-num {
  width: 44px; height: 44px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  color: #fff;
  margin: 0 auto 14px;
}
.step-title { font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.step-desc { font-size: .82rem; color: var(--text-muted); line-height: 1.6; }

/* === 页脚 === */
.footer {
  background: #080814;
  border-top: 1px solid var(--border);
  padding: 50px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 12px;
}
.footer-brand p { font-size: .85rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 34px; height: 34px;
  border-radius: 8px;
  background: var(--card2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  color: var(--text-muted);
  transition: all .2s;
}
.social-btn:hover { background: var(--pink); border-color: var(--pink); color: #fff; }
.footer-col h4 { font-size: .9rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: .83rem; color: var(--text-muted); transition: color .2s; }
.footer-col ul li a:hover { color: var(--pink); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .8rem;
  color: var(--text-muted);
}
.footer-icp { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.footer-icp a { color: var(--text-muted); }
.footer-icp a:hover { color: var(--pink); }

/* === 视频播放页 === */
.video-player-wrap {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/9;
  margin-bottom: 20px;
}
.video-player-wrap video,
.video-player-wrap iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* === 面包屑 === */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--pink); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--pink); }

/* === 分页 === */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-btn {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--card2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .2s;
}
.page-btn:hover, .page-btn.active {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
}

/* === 搜索结果提示 === */
.search-toast {
  display: none;
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 24px;
  font-size: .88rem;
  color: var(--text);
  z-index: 2000;
  box-shadow: var(--shadow-lg);
  white-space: nowrap;
}

/* === 响应式 === */
@media (max-width: 1024px) {
  .video-grid-5 { grid-template-columns: repeat(3, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .howto-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { display: none; }
}
@media (max-width: 768px) {
  .navbar-nav { display: none; }
  .navbar-nav.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: rgba(13,13,26,.98); padding: 16px; border-bottom: 1px solid var(--border); z-index: 999; }
  .navbar-toggle { display: flex; }
  .navbar-search { min-width: 140px; }
  .hero { min-height: 420px; }
  .hero-content { padding: 40px 20px; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .video-grid-5 { grid-template-columns: repeat(2, 1fr); }
  .experts-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .howto-steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .video-grid, .video-grid-5 { grid-template-columns: 1fr; }
  .experts-grid { grid-template-columns: 1fr; }
  .howto-steps { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}