/* =====================================================
   校花 - 主样式文件 | 958dqx.cn
   原创校园粉色主题 | 版本 1.0.0
   ===================================================== */

/* ── 1. CSS变量 ── */
:root {
  --pink-primary:   #FF6B9D;
  --pink-deep:      #C2185B;
  --pink-light:     #FFE4EF;
  --pink-pale:      #FFF0F6;
  --rose:           #E91E8C;
  --cherry:         #FF4081;
  --purple-soft:    #9C27B0;
  --purple-light:   #F3E5F5;
  --white:          #FFFFFF;
  --gray-100:       #F8F9FA;
  --gray-200:       #F1F3F5;
  --gray-300:       #DEE2E6;
  --gray-500:       #ADB5BD;
  --gray-700:       #495057;
  --gray-900:       #212529;
  --text-main:      #2D2D2D;
  --text-sub:       #666666;
  --text-light:     #999999;
  --border-color:   #FFD6E7;
  --shadow-sm:      0 2px 8px rgba(255,107,157,0.12);
  --shadow-md:      0 4px 20px rgba(255,107,157,0.18);
  --shadow-lg:      0 8px 40px rgba(255,107,157,0.22);
  --radius-sm:      6px;
  --radius-md:      12px;
  --radius-lg:      20px;
  --radius-xl:      32px;
  --transition:     all 0.28s cubic-bezier(0.4,0,0.2,1);
  --font-main:      'PingFang SC','Microsoft YaHei','Hiragino Sans GB',sans-serif;
}

/* ── 2. 重置与基础 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-main);
  color: var(--text-main);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--pink-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--pink-deep); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-main); }
input, textarea, select { font-family: var(--font-main); }

/* ── 3. 通用工具类 ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }
.section-alt { background: var(--pink-pale); }
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.section-title span { color: var(--pink-primary); }
.section-sub {
  text-align: center;
  color: var(--text-sub);
  font-size: 1rem;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 28px;
  border-radius: var(--radius-xl);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--pink-primary), var(--rose));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(255,107,157,0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--rose), var(--pink-deep));
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255,107,157,0.45);
  color: var(--white);
}
.btn-outline {
  border: 2px solid var(--pink-primary);
  color: var(--pink-primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--pink-primary);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-ghost {
  color: var(--text-sub);
  border: 1px solid var(--gray-300);
  background: var(--white);
}
.btn-ghost:hover { border-color: var(--pink-primary); color: var(--pink-primary); }
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.badge-hot { background: #FF4757; color: #fff; }
.badge-new { background: var(--pink-primary); color: #fff; }
.badge-live { background: #FF4757; color: #fff; animation: pulse-badge 1.4s infinite; }
.badge-free { background: #2ED573; color: #fff; }
@keyframes pulse-badge {
  0%,100% { opacity: 1; }
  50% { opacity: 0.65; }
}

/* ── 4. 顶部公告栏 ── */
.top-notice {
  background: linear-gradient(90deg, var(--pink-deep), var(--rose), var(--pink-primary));
  color: #fff;
  text-align: center;
  font-size: 0.82rem;
  padding: 7px 20px;
  letter-spacing: 0.02em;
}
.top-notice a { color: #ffe; text-decoration: underline; }

/* ── 5. 导航栏 ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 20px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-logo img.logo-img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--pink-light);
}
.site-logo .logo-text-wrap .logo-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--pink-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.site-logo .logo-text-wrap .logo-slogan {
  font-size: 0.68rem;
  color: var(--text-light);
  letter-spacing: 0.06em;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  background: var(--pink-light);
  color: var(--pink-primary);
}
.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.header-actions .btn { padding: 8px 18px; font-size: 0.85rem; }
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  cursor: pointer;
}
.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--pink-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── 6. 搜索框 ── */
.search-bar-wrap {
  background: var(--pink-pale);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
}
.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto;
}
.search-input-box {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--white);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 8px 16px;
  gap: 8px;
  transition: var(--transition);
}
.search-input-box:focus-within {
  border-color: var(--pink-primary);
  box-shadow: 0 0 0 3px rgba(255,107,157,0.12);
}
.search-input-box svg { color: var(--gray-500); flex-shrink: 0; }
.search-input-box input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 0.92rem;
  color: var(--text-main);
  background: transparent;
}
.search-input-box input::placeholder { color: var(--text-light); }
.search-submit-btn {
  background: linear-gradient(135deg, var(--pink-primary), var(--rose));
  color: #fff;
  border: none;
  border-radius: var(--radius-xl);
  padding: 9px 22px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.search-submit-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.search-hot-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 6px; max-width: 700px; margin-left: auto; margin-right: auto; }
.search-hot-tags span { font-size: 0.78rem; color: var(--text-light); }
.search-hot-tags a {
  font-size: 0.78rem;
  color: var(--text-sub);
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2px 10px;
  transition: var(--transition);
}
.search-hot-tags a:hover { background: var(--pink-light); color: var(--pink-primary); border-color: var(--pink-primary); }

/* ── 7. 移动端导航 ── */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
}
.mobile-nav.open { display: block; }
.mobile-nav-panel {
  position: absolute;
  top: 0; right: 0;
  width: 280px;
  height: 100%;
  background: var(--white);
  padding: 20px;
  overflow-y: auto;
  box-shadow: -4px 0 20px rgba(0,0,0,0.15);
  transform: translateX(100%);
  transition: transform 0.3s ease;
}
.mobile-nav.open .mobile-nav-panel { transform: translateX(0); }
.mobile-nav-close {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 20px;
}
.mobile-nav-close button { font-size: 1.5rem; color: var(--text-sub); }
.mobile-nav-links { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav-links a {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 500;
  border-bottom: 1px solid var(--gray-200);
}
.mobile-nav-links a:hover { background: var(--pink-light); color: var(--pink-primary); }

/* ── 8. Hero 首屏 ── */
.hero-section {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #FFF0F6 0%, #FFE4EF 50%, #F3E5F5 100%);
}
.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
}
.hero-petals {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.petal {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--pink-primary);
  border-radius: 50% 0 50% 0;
  opacity: 0.3;
  animation: fall linear infinite;
}
@keyframes fall {
  0% { transform: translateY(-20px) rotate(0deg); opacity: 0.4; }
  100% { transform: translateY(100vh) rotate(360deg); opacity: 0; }
}
.hero-content-wrap {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 60px 0;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--pink-light);
  color: var(--pink-deep);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.hero-h1 {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}
.hero-h1 .brand-highlight {
  background: linear-gradient(135deg, var(--pink-primary), var(--rose));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.05rem;
  color: var(--text-sub);
  margin-bottom: 28px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }
.hero-stats { display: flex; gap: 28px; }
.hero-stat { text-align: center; }
.hero-stat .num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--pink-primary);
  line-height: 1;
}
.hero-stat .label { font-size: 0.78rem; color: var(--text-light); margin-top: 2px; }
.hero-visual { position: relative; }
.hero-main-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  aspect-ratio: 3/4;
}
.hero-float-card {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  box-shadow: var(--shadow-md);
  font-size: 0.82rem;
}
.hero-float-card.card-top {
  top: 20px; left: -20px;
  display: flex; align-items: center; gap: 8px;
}
.hero-float-card.card-bottom {
  bottom: 30px; right: -20px;
  display: flex; align-items: center; gap: 8px;
}
.float-icon { font-size: 1.4rem; }
.float-text .t1 { font-weight: 700; color: var(--text-main); font-size: 0.88rem; }
.float-text .t2 { color: var(--text-light); font-size: 0.75rem; }

/* ── 9. 弹幕条 ── */
.danmaku-strip {
  background: linear-gradient(90deg, var(--pink-deep), var(--rose));
  color: #fff;
  padding: 10px 0;
  overflow: hidden;
  position: relative;
}
.danmaku-track {
  display: flex;
  gap: 60px;
  animation: danmaku-scroll 30s linear infinite;
  white-space: nowrap;
}
.danmaku-track:hover { animation-play-state: paused; }
.danmaku-item { font-size: 0.85rem; opacity: 0.9; }
.danmaku-item::before { content: "🌸 "; }
@keyframes danmaku-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── 10. 视频卡片 ── */
.video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.video-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--pink-primary);
}
.video-thumb-wrap {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--gray-200);
}
.video-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb-wrap img { transform: scale(1.06); }
.video-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.video-card:hover .video-play-overlay { background: rgba(0,0,0,0.3); }
.play-btn-circle {
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.7);
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.video-card:hover .play-btn-circle {
  opacity: 1;
  transform: scale(1);
}
.play-btn-circle svg { color: var(--pink-primary); margin-left: 3px; }
.video-duration {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 4px;
}
.video-badge-wrap {
  position: absolute;
  top: 8px; left: 8px;
  display: flex; gap: 4px;
}
.video-info { padding: 12px; }
.video-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
  margin-bottom: 6px;
  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: 0.75rem;
  color: var(--text-light);
}
.video-meta .views::before { content: "▶ "; }
.video-meta .likes::before { content: "♥ "; color: var(--pink-primary); }
.video-author { display: flex; align-items: center; gap: 5px; margin-top: 6px; }
.video-author img {
  width: 20px; height: 20px;
  border-radius: 50%;
  object-fit: cover;
}
.video-author span { font-size: 0.75rem; color: var(--text-sub); }

/* ── 11. 直播卡片 ── */
.live-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.live-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition);
}
.live-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.live-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.live-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%);
}
.live-top-badges {
  position: absolute;
  top: 10px; left: 10px;
  display: flex; gap: 6px;
}
.live-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 14px;
  color: #fff;
}
.live-host { font-weight: 700; font-size: 0.95rem; margin-bottom: 2px; }
.live-viewers { font-size: 0.78rem; opacity: 0.85; }
.live-viewers::before { content: "👁 "; }

/* ── 12. 分类标签 ── */
.category-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.cat-tab {
  padding: 7px 18px;
  border-radius: var(--radius-xl);
  font-size: 0.88rem;
  font-weight: 500;
  border: 1.5px solid var(--border-color);
  color: var(--text-sub);
  background: var(--white);
  cursor: pointer;
  transition: var(--transition);
}
.cat-tab:hover, .cat-tab.active {
  background: var(--pink-primary);
  border-color: var(--pink-primary);
  color: var(--white);
}

/* ── 13. 功能模块卡片 ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-align: center;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--pink-primary);
}
.feature-icon {
  width: 60px; height: 60px;
  border-radius: var(--radius-md);
  background: var(--pink-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.6rem;
}
.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--text-main); }
.feature-card p { font-size: 0.88rem; color: var(--text-sub); line-height: 1.6; }

/* ── 14. AI赋能区 ── */
.ai-section-wrap {
  background: linear-gradient(135deg, #1a0533 0%, #3d0066 50%, #1a0533 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  position: relative;
  overflow: hidden;
}
.ai-section-wrap::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,107,157,0.2) 0%, transparent 70%);
  pointer-events: none;
}
.ai-section-wrap .section-title { color: #fff; }
.ai-section-wrap .section-sub { color: rgba(255,255,255,0.7); }
.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.ai-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,107,157,0.25);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}
.ai-card:hover {
  background: rgba(255,107,157,0.15);
  border-color: var(--pink-primary);
  transform: translateY(-3px);
}
.ai-icon { font-size: 2rem; margin-bottom: 12px; }
.ai-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: #fff; }
.ai-card p { font-size: 0.85rem; color: rgba(255,255,255,0.7); line-height: 1.6; }

/* ── 15. 专家展示 ── */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.expert-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 20px;
  transition: var(--transition);
}
.expert-card:hover { box-shadow: var(--shadow-md); border-color: var(--pink-primary); }
.expert-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--pink-light);
}
.expert-info { flex: 1; }
.expert-name { font-size: 1.05rem; font-weight: 700; color: var(--text-main); margin-bottom: 2px; }
.expert-title { font-size: 0.82rem; color: var(--pink-primary); font-weight: 600; margin-bottom: 6px; }
.expert-desc { font-size: 0.85rem; color: var(--text-sub); line-height: 1.6; margin-bottom: 10px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 12px; }
.award-tag {
  font-size: 0.72rem;
  background: var(--pink-light);
  color: var(--pink-deep);
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
}
.expert-btns { display: flex; gap: 8px; }
.expert-btns .btn { padding: 6px 14px; font-size: 0.78rem; }

/* ── 16. 用户评价 ── */
.review-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 22px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.review-card:hover { box-shadow: var(--shadow-md); }
.review-stars { color: #FFB800; font-size: 0.95rem; margin-bottom: 10px; }
.review-text { font-size: 0.9rem; color: var(--text-sub); line-height: 1.7; margin-bottom: 14px; font-style: italic; }
.review-text::before { content: '"'; font-size: 1.5rem; color: var(--pink-primary); line-height: 0; vertical-align: -0.4em; }
.review-author { display: flex; align-items: center; gap: 10px; }
.review-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink-primary), var(--rose));
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.review-author-info .name { font-size: 0.88rem; font-weight: 700; color: var(--text-main); }
.review-author-info .date { font-size: 0.75rem; color: var(--text-light); }

/* ── 17. FAQ ── */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--pink-primary); box-shadow: var(--shadow-sm); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  cursor: pointer;
  background: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
  transition: var(--transition);
  gap: 12px;
}
.faq-question:hover { background: var(--pink-pale); }
.faq-item.open .faq-question { background: var(--pink-pale); color: var(--pink-primary); }
.faq-icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--pink-light);
  color: var(--pink-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon { background: var(--pink-primary); color: #fff; transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 20px 16px;
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.8;
  background: var(--white);
}
.faq-item.open .faq-answer { display: block; }

/* ── 18. 图集展示 ── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery-item:hover img { transform: scale(1.08); }
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(255,107,157,0.7) 0%, transparent 60%);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 12px;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 600;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }

/* ── 19. 合作品牌 ── */
.partners-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.partner-logo {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-sub);
  transition: var(--transition);
}
.partner-logo:hover { background: var(--pink-light); color: var(--pink-primary); border-color: var(--pink-primary); }

/* ── 20. 步骤指南 ── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--pink-primary), var(--rose));
  z-index: 0;
}
.step-card {
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-num {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink-primary), var(--rose));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 4px 16px rgba(255,107,157,0.35);
}
.step-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 6px; color: var(--text-main); }
.step-card p { font-size: 0.83rem; color: var(--text-sub); line-height: 1.6; }

/* ── 21. 联系/二维码区 ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}
.contact-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--pink-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-text .label { font-size: 0.78rem; color: var(--text-light); margin-bottom: 2px; }
.contact-text .value { font-size: 0.92rem; font-weight: 600; color: var(--text-main); }
.qr-codes { display: flex; gap: 24px; justify-content: center; }
.qr-item { text-align: center; }
.qr-item img {
  width: 130px; height: 130px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-color);
  margin-bottom: 8px;
}
.qr-item span { font-size: 0.8rem; color: var(--text-sub); display: block; }

/* ── 22. 社交分享 ── */
.share-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 20px 0;
}
.share-bar span { font-size: 0.88rem; color: var(--text-sub); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 16px;
  border-radius: var(--radius-xl);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1.5px solid transparent;
}
.share-wechat { background: #07C160; color: #fff; }
.share-weibo { background: #E6162D; color: #fff; }
.share-douyin { background: #010101; color: #fff; }
.share-bilibili { background: #00A1D6; color: #fff; }
.share-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* ── 23. 页脚 ── */
.site-footer {
  background: linear-gradient(135deg, #1a0020 0%, #2d0040 100%);
  color: rgba(255,255,255,0.75);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand .logo-wrap img {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 2px solid var(--pink-primary);
}
.footer-brand .logo-wrap .name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--pink-primary);
}
.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.7;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.6);
}
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--pink-primary); color: #fff; }
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,107,157,0.3);
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--pink-primary); padding-left: 4px; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--pink-primary); }
.footer-update { color: var(--pink-primary); font-weight: 600; }

/* ── 24. 回到顶部 ── */
.back-to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--pink-primary), var(--rose));
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
  font-size: 1rem;
  border: none;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

/* ── 25. 面包屑 ── */
.breadcrumb-bar {
  background: var(--pink-pale);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-light);
}
.breadcrumb a { color: var(--text-sub); }
.breadcrumb a:hover { color: var(--pink-primary); }
.breadcrumb .sep { color: var(--gray-300); }
.breadcrumb .current { color: var(--pink-primary); font-weight: 600; }

/* ── 26. 内页Hero ── */
.page-hero {
  background: linear-gradient(135deg, var(--pink-pale) 0%, var(--purple-light) 100%);
  padding: 48px 0;
  border-bottom: 1px solid var(--border-color);
}
.page-hero h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 8px;
}
.page-hero h1 span { color: var(--pink-primary); }
.page-hero p { font-size: 1rem; color: var(--text-sub); }

/* ── 27. 标签云 ── */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 5px 14px;
  border-radius: var(--radius-xl);
  font-size: 0.8rem;
  background: var(--pink-light);
  color: var(--pink-deep);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
}
.tag:hover { background: var(--pink-primary); color: #fff; border-color: var(--pink-primary); }

/* ── 28. 提示Toast ── */
.xh-toast {
  position: fixed;
  top: 80px; left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(0,0,0,0.8);
  color: #fff;
  padding: 10px 24px;
  border-radius: var(--radius-xl);
  font-size: 0.88rem;
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
}
.xh-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── 29. 响应式 ── */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-content-wrap { grid-template-columns: 1fr; gap: 30px; }
  .hero-visual { display: none; }
  .hero-h1 { font-size: 2.2rem; }
}
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .section-title { font-size: 1.6rem; }
  .main-nav { display: none; }
  .header-actions .btn-outline { display: none; }
  .mobile-menu-btn { display: flex; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .live-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid::before { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .ai-section-wrap { padding: 36px 24px; }
  .hero-h1 { font-size: 1.8rem; }
}
@media (max-width: 480px) {
  .container { padding: 0 14px; }
  .video-grid { grid-template-columns: 1fr; }
  .live-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .hero-stats { gap: 16px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .qr-codes { flex-direction: column; align-items: center; }
}

/* ── 30. 内页额外样式 ── */
.inner-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.inner-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.tool-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--pink-primary); }
.tool-icon { font-size: 2.4rem; margin-bottom: 12px; }
.tool-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--text-main); }
.tool-card p { font-size: 0.85rem; color: var(--text-sub); line-height: 1.6; margin-bottom: 14px; }
.sitemap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.sitemap-col h3 { font-size: 1rem; font-weight: 700; color: var(--pink-primary); margin-bottom: 12px; padding-bottom: 8px; border-bottom: 2px solid var(--pink-light); }
.sitemap-col ul { display: flex; flex-direction: column; gap: 6px; }
.sitemap-col ul li a { font-size: 0.88rem; color: var(--text-sub); }
.sitemap-col ul li a:hover { color: var(--pink-primary); }
.about-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.value-card { background: var(--pink-pale); border-radius: var(--radius-md); padding: 24px; text-align: center; }
.value-card .icon { font-size: 2rem; margin-bottom: 10px; }
.value-card h3 { font-size: 0.95rem; font-weight: 700; color: var(--text-main); margin-bottom: 6px; }
.value-card p { font-size: 0.83rem; color: var(--text-sub); }
@media (max-width: 768px) {
  .inner-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .sitemap-grid { grid-template-columns: repeat(2, 1fr); }
  .about-values { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .inner-grid-3 { grid-template-columns: 1fr; }
  .inner-grid-2 { grid-template-columns: 1fr; }
  .sitemap-grid { grid-template-columns: 1fr; }
  .about-values { grid-template-columns: 1fr; }
}