/* =====================================================
   抖阴 - 主样式文件 | ltajktpk.cn
   原创设计，版权所有
   ===================================================== */

/* ---- CSS变量 ---- */
:root {
  --pink: #E91E8C;
  --pink-light: #FF4DB8;
  --pink-dark: #C2186F;
  --orange: #FF6B35;
  --orange-light: #FF8C5A;
  --dark1: #0A0A14;
  --dark2: #0F0F1E;
  --dark3: #16162A;
  --dark4: #1E1E35;
  --dark5: #252540;
  --white: #F0F0F8;
  --text-muted: #8888AA;
  --border: rgba(255,255,255,0.07);
  --gradient-main: linear-gradient(135deg, #E91E8C 0%, #FF6B35 100%);
  --gradient-dark: linear-gradient(135deg, #0F0F1E 0%, #16162A 100%);
  --shadow-pink: 0 8px 32px rgba(233,30,140,0.3);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.4);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
}

/* ---- 重置 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--dark1);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input { font-family: inherit; }

/* ---- 公告栏 ---- */
.xm98qn {
  background: var(--gradient-main);
  padding: 8px 0;
  overflow: hidden;
}
.x5gm1v {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .82rem;
  font-weight: 500;
}
.xvwv9b {
  background: rgba(255,255,255,0.25);
  padding: 2px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 700;
  white-space: nowrap;
}
.xx362vj {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: .95;
}

/* ---- 头部 ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10,10,20,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
}
.logo-text {
  font-size: 1.25rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.main-nav a {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--white);
  background: rgba(233,30,140,0.15);
}
.main-nav a.active {
  color: var(--pink);
  background: rgba(233,30,140,0.12);
}
.header-search {
  display: flex;
  align-items: center;
  background: var(--dark4);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  flex-shrink: 0;
}
.header-search input {
  background: none;
  border: none;
  outline: none;
  padding: 8px 14px;
  color: var(--white);
  font-size: .85rem;
  width: 180px;
}
.header-search input::placeholder { color: var(--text-muted); }
.search-btn {
  padding: 8px 14px;
  color: var(--text-muted);
  transition: var(--transition);
}
.search-btn:hover { color: var(--pink); }
.search-btn svg { width: 16px; height: 16px; }
.menu-toggle {
  display: none;
  color: var(--white);
  padding: 8px;
}
.menu-toggle svg { width: 24px; height: 24px; }

/* ---- Hero 轮播 ---- */
.hero-section {
  position: relative;
  overflow: hidden;
  height: 520px;
}
.hero-slider { position: relative; width: 100%; height: 100%; }
.xt6fgmo3 {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .8s ease;
}
.xt6fgmo3.active { opacity: 1; }
.xt6fgmo3 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10,10,20,.92) 0%, rgba(10,10,20,.5) 60%, rgba(10,10,20,.1) 100%);
}
.hero-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 60px;
  max-width: 680px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(233,30,140,0.2);
  border: 1px solid rgba(233,30,140,0.4);
  color: var(--pink-light);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .78rem;
  font-weight: 700;
  margin-bottom: 16px;
  width: fit-content;
}
.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--white);
}
.hero-content h1 span {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p {
  font-size: .95rem;
  color: rgba(240,240,248,.75);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 480px;
}
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-main);
  color: #fff;
  padding: 12px 28px;
  border-radius: 28px;
  font-size: .9rem;
  font-weight: 700;
  box-shadow: var(--shadow-pink);
  transition: var(--transition);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(233,30,140,.45); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.2);
  color: var(--white);
  padding: 12px 28px;
  border-radius: 28px;
  font-size: .9rem;
  font-weight: 600;
  transition: var(--transition);
}
.btn-outline:hover { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.35); }
.xxwfhw85 {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}
.xlqwop6f {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.3);
  transition: var(--transition);
}
.xlqwop6f.active {
  background: var(--pink);
  width: 24px;
  border-radius: 4px;
}

/* ---- 统计栏 ---- */
.stats-bar {
  background: var(--dark3);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
.stats-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.x5wrpmn {
  display: flex;
  align-items: center;
  gap: 12px;
}
.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(233,30,140,.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-icon svg { width: 20px; height: 20px; color: var(--pink); }
.xw71a0 {
  font-size: 1.1rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.x0sqvotz { font-size: .75rem; color: var(--text-muted); margin-top: 2px; }

/* ---- 通用Section ---- */
.section { padding: 64px 0; }
.section.bg-dark2 { background: var(--dark2); }
.section-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}
.section-header { margin-bottom: 36px; }
.section-header.text-center { text-align: center; }
.section-header.text-center .section-tag { justify-content: center; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .78rem;
  font-weight: 700;
  color: var(--pink);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.section-tag::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
}
.section-title {
  font-size: 1.9rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 12px;
  color: var(--white);
}
.section-title span {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-desc { font-size: .9rem; color: var(--text-muted); max-width: 560px; line-height: 1.7; }
.section-header.text-center .section-desc { margin: 0 auto; }
.section-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 0;
  flex-wrap: wrap;
  gap: 12px;
}
.view-all {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--pink);
  flex-shrink: 0;
}
.view-all svg { width: 16px; height: 16px; }
.view-all:hover { color: var(--pink-light); }

/* ---- 分类Tab ---- */
.x2e2t9 {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.x46zpww {
  padding: 7px 18px;
  border-radius: 20px;
  font-size: .83rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--dark4);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.x46zpww:hover { color: var(--white); border-color: rgba(233,30,140,.3); }
.x46zpww.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(233,30,140,.3);
}

/* ---- 视频卡片 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.video-grid-lg {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.video-card {
  background: var(--dark3);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-4px);
  border-color: rgba(233,30,140,.3);
  box-shadow: 0 12px 40px rgba(233,30,140,.15);
}
.video-thumb {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--dark4);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .play-overlay { opacity: 1; }
.play-btn-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 8px rgba(233,30,140,.2);
  transition: var(--transition);
}
.play-btn-circle svg { width: 24px; height: 24px; color: #fff; margin-left: 3px; }
.video-card:hover .play-btn-circle { transform: scale(1.1); }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,.75);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}
.video-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--gradient-main);
  color: #fff;
  font-size: .68rem;
  font-weight: 800;
  padding: 3px 9px;
  border-radius: 4px;
  letter-spacing: .5px;
}
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255,50,50,.15);
  border: 1px solid rgba(255,50,50,.3);
  color: #FF5555;
  font-size: .72rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 4px;
}
.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #FF5555;
  animation: livePulse 1.2s infinite;
}
@keyframes livePulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.3); }
}
.video-info { padding: 12px; }
.video-title {
  font-size: .88rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
  color: var(--white);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  gap: 12px;
  font-size: .75rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.video-meta span { display: inline-flex; align-items: center; gap: 4px; }
.video-meta svg { width: 12px; height: 12px; }

/* ---- 功能卡片 ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: var(--transition);
}
.feature-card:hover {
  border-color: rgba(233,30,140,.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(233,30,140,.1);
  border: 1px solid rgba(233,30,140,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feature-icon svg { width: 24px; height: 24px; color: var(--pink); }
.feature-title { font-size: 1rem; font-weight: 700; margin-bottom: 10px; color: var(--white); }
.feature-desc { font-size: .85rem; color: var(--text-muted); line-height: 1.7; }

/* ---- AI卡片 ---- */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.ai-card {
  background: linear-gradient(135deg, var(--dark3), var(--dark4));
  border: 1px solid rgba(233,30,140,.15);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
}
.ai-card:hover {
  border-color: rgba(233,30,140,.35);
  box-shadow: var(--shadow-pink);
  transform: translateY(-4px);
}
.ai-card-icon { font-size: 2.2rem; margin-bottom: 16px; }
.ai-card-title { font-size: 1.05rem; font-weight: 800; margin-bottom: 12px; color: var(--white); }
.ai-card-desc { font-size: .85rem; color: var(--text-muted); line-height: 1.8; }

/* ---- 专家卡片 ---- */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.expert-card:hover {
  border-color: rgba(233,30,140,.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.expert-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid transparent;
  background: var(--gradient-main) 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: 1.1rem; font-weight: 800; margin-bottom: 4px; color: var(--white); }
.expert-role { font-size: .8rem; color: var(--pink); margin-bottom: 12px; font-weight: 600; }
.expert-desc { font-size: .83rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; }
.expert-awards { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-bottom: 16px; }
.award-tag {
  background: rgba(255,107,53,.1);
  border: 1px solid rgba(255,107,53,.25);
  color: var(--orange);
  font-size: .72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
}
.expert-btns { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  padding: 7px 16px;
  border-radius: 16px;
  font-size: .8rem;
  font-weight: 600;
  transition: var(--transition);
}
.btn-sm-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 3px 12px rgba(233,30,140,.3);
}
.btn-sm-outline {
  background: transparent;
  border: 1px solid rgba(233,30,140,.4);
  color: var(--pink);
}
.btn-sm-outline:hover { background: rgba(233,30,140,.1); }

/* ---- 合作伙伴 ---- */
.partners-section {
  background: var(--dark2);
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.partner-item {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
}
.partner-item:hover {
  color: var(--white);
  border-color: rgba(233,30,140,.3);
  background: rgba(233,30,140,.05);
}

/* ---- 步骤卡片 ---- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 32px;
}
.step-card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
  transition: var(--transition);
}
.step-card:hover {
  border-color: rgba(233,30,140,.3);
  transform: translateY(-3px);
}
.step-num {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
  box-shadow: 0 4px 16px rgba(233,30,140,.3);
}
.step-title { font-size: .95rem; font-weight: 700; margin-bottom: 10px; color: var(--white); }
.step-desc { font-size: .83rem; color: var(--text-muted); line-height: 1.7; }

/* ---- FAQ ---- */
.faq-section { background: var(--dark2); }
.faq-list { max-width: 800px; margin: 32px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: rgba(233,30,140,.3); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  text-align: left;
  gap: 12px;
}
.faq-q-text { font-size: .9rem; font-weight: 600; color: var(--white); flex: 1; }
.faq-icon { flex-shrink: 0; color: var(--pink); transition: var(--transition); }
.faq-icon svg { width: 18px; height: 18px; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  padding: 0 22px;
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.8;
}
.faq-item.open .faq-a {
  max-height: 300px;
  padding: 0 22px 18px;
}

/* ---- 评价卡片 ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 32px;
}
.review-card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}
.review-card:hover { border-color: rgba(233,30,140,.25); transform: translateY(-2px); }
.review-stars { margin-bottom: 12px; }
.star { color: #FFB800; font-size: 1rem; }
.review-text { font-size: .85rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.review-name { font-size: .85rem; font-weight: 700; color: var(--white); }
.review-date { font-size: .75rem; color: var(--text-muted); margin-top: 2px; }

/* ---- 联系 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
}
.contact-card {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}
.contact-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.contact-title svg { width: 20px; height: 20px; color: var(--pink); }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.contact-item:last-child { border-bottom: none; }
.contact-item-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(233,30,140,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item-icon svg { width: 16px; height: 16px; color: var(--pink); }
.contact-item-label { font-size: .75rem; color: var(--text-muted); margin-bottom: 2px; }
.contact-item-val { font-size: .85rem; color: var(--white); font-weight: 500; }
.qr-row { display: flex; gap: 20px; justify-content: center; }
.qr-item { text-align: center; }
.qr-item img { width: 110px; height: 110px; border-radius: 8px; object-fit: cover; border: 1px solid var(--border); }
.qr-label { font-size: .75rem; color: var(--text-muted); margin-top: 8px; line-height: 1.5; }

/* ---- 分享栏 ---- */
.share-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.share-label { font-size: .85rem; color: var(--text-muted); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--dark4);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 7px 16px;
  border-radius: 16px;
  font-size: .8rem;
  font-weight: 600;
  transition: var(--transition);
}
.share-btn:hover { color: var(--white); border-color: rgba(233,30,140,.3); background: rgba(233,30,140,.08); }

/* ---- 面包屑 ---- */
.breadcrumb {
  background: var(--dark3);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.breadcrumb-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: .8rem;
  color: var(--text-muted);
}
.breadcrumb-list a { color: var(--text-muted); }
.breadcrumb-list a:hover { color: var(--pink); }
.breadcrumb-list li:last-child { color: var(--white); }
.breadcrumb-sep { margin: 0 4px; }

/* ---- 页面Hero ---- */
.page-hero {
  background: linear-gradient(135deg, var(--dark2) 0%, var(--dark3) 100%);
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
}
.page-hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}
.page-hero h1 {
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 10px;
  color: var(--white);
}
.page-hero h1 span {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-hero p { font-size: .9rem; color: var(--text-muted); max-width: 560px; line-height: 1.7; }

/* ---- 分页 ---- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 36px;
}
.page-btn {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--dark4);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .85rem;
  font-weight: 600;
  transition: var(--transition);
}
.page-btn:hover { color: var(--white); border-color: rgba(233,30,140,.3); }
.page-btn.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(233,30,140,.3);
}

/* ---- 页脚 ---- */
.site-footer {
  background: var(--dark2);
  border-top: 1px solid var(--border);
  padding: 48px 0 0;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.footer-brand .logo-text { font-size: 1.4rem; display: block; margin-bottom: 14px; }
.footer-brand p { font-size: .83rem; color: var(--text-muted); line-height: 1.8; }
.footer-col h4 {
  font-size: .9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: .83rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-col a:hover { color: var(--pink); }
.footer-social { display: flex; gap: 10px; }
.social-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--dark4);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: var(--transition);
}
.social-icon svg { width: 16px; height: 16px; }
.social-icon:hover { color: var(--pink); border-color: rgba(233,30,140,.3); background: rgba(233,30,140,.08); }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .78rem;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--pink); }
.footer-links { display: flex; gap: 16px; }

/* ---- 视频弹窗 ---- */
.video-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
  backdrop-filter: blur(8px);
}
.video-modal.open { opacity: 1; pointer-events: all; }
.video-modal-inner {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 720px;
  position: relative;
  overflow: hidden;
}
.video-modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  z-index: 10;
  color: var(--text-muted);
  font-size: 1.1rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0,0,0,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.video-modal-close:hover { color: var(--white); background: rgba(233,30,140,.3); }
.video-placeholder {
  aspect-ratio: 16/9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: var(--dark1);
  color: var(--text-muted);
}
.video-placeholder svg { width: 64px; height: 64px; color: var(--pink); opacity: .5; }
.video-placeholder p { font-size: .9rem; }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 2.2rem; }
}
@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10,10,20,.98);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 12px 20px;
    gap: 4px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 10px 14px; }
  .header-search { display: none; }
  .hero-section { height: 400px; }
  .hero-content { padding: 0 24px; }
  .hero-content h1 { font-size: 1.7rem; }
  .hero-content p { font-size: .85rem; }
  .section-title { font-size: 1.5rem; }
  .stats-inner { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .section-header-row { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .hero-section { height: 340px; }
  .hero-content h1 { font-size: 1.4rem; }
  .hero-btns { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .video-grid-lg { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 40px 0; }
  .expert-grid { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}