/* ============================================================
   51 - 原创CSS样式表
   品牌色：深靛蓝 #1a1a4e | 电光蓝 #00d4ff | 活力橙 #ff6b35
   字体：系统字体栈（无外部依赖）
   ============================================================ */

/* ---------- CSS变量 ---------- */
:root {
  --primary: #1a1a4e;
  --primary-light: #2d2d7a;
  --accent: #00d4ff;
  --accent2: #ff6b35;
  --accent3: #7c3aed;
  --bg-dark: #0d0d2b;
  --bg-card: #1e1e4a;
  --bg-card2: #16163a;
  --text-main: #e8e8f0;
  --text-muted: #9999bb;
  --text-white: #ffffff;
  --border: rgba(0,212,255,0.18);
  --shadow: 0 4px 24px rgba(0,0,0,0.45);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.28s cubic-bezier(.4,0,.2,1);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent2); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: var(--font); }

/* ---------- 通用容器 ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }
.l3d8hu3n { padding: 48px 0; }

/* ---------- 通用标题 ---------- */
.afyns { text-align: center; margin-bottom: 48px; }
.afyns h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}
.afyns h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  margin: 10px auto 0;
  border-radius: 2px;
}
.afyns p { color: var(--text-muted); font-size: 1rem; max-width: 560px; margin: 0 auto; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #0099cc);
  color: #fff;
  box-shadow: 0 4px 18px rgba(0,212,255,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,212,255,0.5); color: #fff; }
.btn-orange {
  background: linear-gradient(135deg, var(--accent2), #e05520);
  color: #fff;
  box-shadow: 0 4px 18px rgba(255,107,53,0.35);
}
.btn-orange:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255,107,53,0.5); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}
.btn-outline:hover { background: var(--accent); color: var(--bg-dark); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* ---------- 徽章 ---------- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-orange { background: rgba(255,107,53,0.18); color: var(--accent2); border: 1px solid rgba(255,107,53,0.35); }
.badge-blue { background: rgba(0,212,255,0.12); color: var(--accent); border: 1px solid rgba(0,212,255,0.3); }
.badge-purple { background: rgba(124,58,237,0.15); color: #a78bfa; border: 1px solid rgba(124,58,237,0.3); }
.badge-live {
  background: #ef4444;
  color: #fff;
  animation: pulse-live 1.5s infinite;
}
@keyframes pulse-live {
  0%,100% { opacity: 1; }
  50% { opacity: 0.65; }
}

/* ============================================================
   顶部导航
   ============================================================ */
.bdexoz {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,13,43,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.3cfu9u {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
/* Logo区域 */
.aplkrr {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.aplkrr img.f1nhv415 {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  object-fit: cover;
}
.aplkrr .iumzst0 {
  font-size: 1.3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}
/* 主导航 */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-main);
  transition: all var(--transition);
}
.main-nav a:hover, .main-nav a.active {
  background: rgba(0,212,255,0.1);
  color: var(--accent);
}
/* 搜索框 */
.dns1i {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 6px 16px;
  gap: 8px;
  min-width: 200px;
  transition: border-color var(--transition);
}
.dns1i:focus-within { border-color: var(--accent); }
.dns1i input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 0.88rem;
  width: 100%;
  font-family: var(--font);
}
.dns1i input::placeholder { color: var(--text-muted); }
.dns1i button {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 0;
  font-size: 1rem;
  transition: color var(--transition);
}
.dns1i button:hover { color: var(--accent); }
/* 汉堡菜单 */
.nav-toggle { display: none; background: none; border: none; color: var(--text-main); font-size: 1.4rem; padding: 4px; }

/* 搜索栏（导航下方） */
.vl6f0bk {
  background: var(--bg-card2);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.xv6uo0 {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 20px;
}
.xv6uo0 input {
  flex: 1;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 10px 20px;
  color: var(--text-main);
  font-size: 0.9rem;
  outline: none;
  font-family: var(--font);
  transition: border-color var(--transition);
}
.xv6uo0 input:focus { border-color: var(--accent); }
.xv6uo0 button {
  background: linear-gradient(135deg, var(--accent), #0099cc);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 10px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
}
.xv6uo0 button:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(0,212,255,0.4); }

/* ============================================================
   Hero 首屏
   ============================================================ */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0d0d2b 0%, #1a1a4e 50%, #0d1a3a 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero_banner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.22;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,13,43,0.85) 0%, rgba(26,26,78,0.6) 100%);
}
.hero-particles {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(0,212,255,0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,107,53,0.06) 0%, transparent 50%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.25);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 20px;
  font-weight: 500;
}
.hero-eyebrow span.dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-live 1.5s infinite;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-white);
  margin-bottom: 18px;
}
.hero h1 .brand { color: var(--accent); }
.hero h1 .highlight { color: var(--accent2); }
.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 540px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.hero-stat .num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.hero-stat .label { font-size: 0.82rem; color: var(--text-muted); margin-top: 4px; }

/* ============================================================
   动漫视频卡片
   ============================================================ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.video-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
  border-color: rgba(0,212,255,0.4);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-card2);
}
.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); }
/* 播放按钮 - 鼠标悬停显示 */
.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.45);
  opacity: 0;
  transition: opacity var(--transition);
}
.video-card:hover .play-overlay { opacity: 1; }
.play-btn {
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.85);
  transition: transform var(--transition);
}
.video-card:hover .play-btn { transform: scale(1); }
.play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--primary);
  margin-left: 4px;
}
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}
.video-badge {
  position: absolute;
  top: 8px;
  left: 8px;
}
.video-info { padding: 14px 16px; }
.video-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.video-stats { display: flex; gap: 12px; }
.video-stats span { display: flex; align-items: center; gap: 4px; }

/* ============================================================
   分类标签栏
   ============================================================ */
.knnjr2s {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.h7fyih {
  padding: 7px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
}
.h7fyih:hover, .h7fyih.active {
  background: linear-gradient(135deg, var(--accent), #0099cc);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(0,212,255,0.3);
}

/* ============================================================
   服务/功能卡片
   ============================================================ */
.przyaz1 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.y89t7 {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px 22px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  text-align: center;
}
.y89t7:hover {
  transform: translateY(-4px);
  border-color: rgba(0,212,255,0.4);
  box-shadow: var(--shadow);
}
.1y1zr {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto 16px;
}
.rmqpe2yf { background: rgba(0,212,255,0.12); }
.9oqhpfbj { background: rgba(255,107,53,0.12); }
.bef3r { background: rgba(124,58,237,0.12); }
.to3ru0mq { background: rgba(16,185,129,0.12); }
.y89t7 h3 { font-size: 1rem; font-weight: 700; color: var(--text-white); margin-bottom: 8px; }
.y89t7 p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ============================================================
   专家展示
   ============================================================ */
.bvt9r3gd {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.848v89 {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  display: flex;
  gap: 18px;
  transition: all var(--transition);
}
.848v89:hover { border-color: rgba(0,212,255,0.4); box-shadow: var(--shadow); }
.8xiwnn2 {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--accent);
}
.a6s44 h3 { font-size: 1rem; font-weight: 700; color: var(--text-white); margin-bottom: 4px; }
.hn1sy { font-size: 0.8rem; color: var(--accent); margin-bottom: 8px; }
.68se1f { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 12px; }
.b1nmg { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.gb6w0n {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(0,212,255,0.08);
  color: var(--accent);
  border: 1px solid rgba(0,212,255,0.2);
}
.expert-actions { display: flex; gap: 8px; }

/* ============================================================
   用户评价
   ============================================================ */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.review-card:hover { border-color: rgba(255,107,53,0.3); box-shadow: var(--shadow); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  font-size: 1rem;
  flex-shrink: 0;
}
.review-user h4 { font-size: 0.9rem; font-weight: 600; color: var(--text-white); }
.review-user span { font-size: 0.75rem; color: var(--text-muted); }
.review-stars { color: #fbbf24; font-size: 0.85rem; margin-left: auto; }
.review-text { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; }
.review-date { font-size: 0.75rem; color: var(--text-muted); margin-top: 10px; }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  margin-bottom: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-white);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  transition: background var(--transition);
}
.faq-question:hover { background: rgba(0,212,255,0.05); }
.faq-question.open { color: var(--accent); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(0,212,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  color: var(--accent);
  transition: transform var(--transition);
}
.faq-question.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-answer.open { max-height: 300px; }
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ============================================================
   标签云
   ============================================================ */
.xl7lj { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.w3fkpo {
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: pointer;
}
.w3fkpo:hover {
  background: rgba(0,212,255,0.1);
  color: var(--accent);
  border-color: rgba(0,212,255,0.35);
}
.w3fkpo.hot { color: var(--accent2); border-color: rgba(255,107,53,0.3); background: rgba(255,107,53,0.07); }

/* ============================================================
   合作品牌Logo墙
   ============================================================ */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}
.partner-item {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 18px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
  min-height: 70px;
}
.partner-item:hover { border-color: rgba(0,212,255,0.4); color: var(--accent); background: rgba(0,212,255,0.05); }

/* ============================================================
   社区功能模块
   ============================================================ */
.8cy9uhdj {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.rpmy69n {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.rpmy69n:hover { border-color: rgba(124,58,237,0.4); transform: translateY(-3px); }
.rpmy69n h3 { font-size: 1rem; font-weight: 700; color: var(--text-white); margin-bottom: 8px; }
.rpmy69n p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }
.39eq5d { font-size: 2rem; margin-bottom: 14px; }

/* ============================================================
   AI赋能区块
   ============================================================ */
.xbearo {
  background: linear-gradient(135deg, #0d1a3a 0%, #1a0d3a 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.ai-features { display: flex; flex-direction: column; gap: 20px; }
.ai-feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.ai-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(124,58,237,0.25), rgba(0,212,255,0.15));
  border: 1px solid rgba(124,58,237,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.ai-feature-item h4 { font-size: 0.95rem; font-weight: 700; color: var(--text-white); margin-bottom: 4px; }
.ai-feature-item p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.6; }
.ai-visual {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
  text-align: center;
}
.ai-visual img { border-radius: var(--radius-sm); margin: 0 auto; }

/* ============================================================
   联系我们
   ============================================================ */
.fapocv {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.18pth {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
}
.18pth h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-white); margin-bottom: 20px; }
.s5g7e {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  align-items: flex-start;
}
.s5g7e-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(0,212,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.s5g7e-text strong { display: block; font-size: 0.82rem; color: var(--text-muted); margin-bottom: 2px; }
.s5g7e-text span { font-size: 0.9rem; color: var(--text-white); }
.w7gq08r { display: flex; gap: 20px; margin-top: 20px; }
.7g6gbxwa { text-align: center; }
.7g6gbxwa img { width: 100px; height: 100px; border-radius: 8px; margin: 0 auto 8px; }
.7g6gbxwa p { font-size: 0.78rem; color: var(--text-muted); }

/* ============================================================
   CTA区块
   ============================================================ */
.h52xrh8i {
  background: linear-gradient(135deg, var(--primary) 0%, #0d1a3a 100%);
  text-align: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.h52xrh8i::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 50%, rgba(0,212,255,0.1) 0%, transparent 60%),
    radial-gradient(circle at 70% 50%, rgba(255,107,53,0.08) 0%, transparent 60%);
}
.h52xrh8i h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: #fff; margin-bottom: 14px; position: relative; }
.h52xrh8i p { color: var(--text-muted); margin-bottom: 32px; font-size: 1rem; position: relative; }
.g2ax2v { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; }
.h52xrh8i h5 { color: var(--text-muted); font-size: 0.82rem; font-weight: 400; margin-top: 20px; position: relative; }
.h52xrh8i h6 { color: rgba(255,255,255,0.3); font-size: 0.75rem; font-weight: 400; margin-top: 8px; position: relative; }

/* ============================================================
   社交分享
   ============================================================ */
.bb8bj8i {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.bb8bj8i span { font-size: 0.85rem; color: var(--text-muted); }
.9nha8 {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  transition: all var(--transition);
}
.9nha8:hover { color: var(--text-white); border-color: rgba(255,255,255,0.3); }
.share-wechat:hover { background: rgba(7,193,96,0.15); border-color: #07c160; color: #07c160; }
.share-weibo:hover { background: rgba(230,22,45,0.12); border-color: #e6162d; color: #e6162d; }
.share-douyin:hover { background: rgba(0,0,0,0.3); border-color: #fff; color: #fff; }
.share-bilibili:hover { background: rgba(0,161,214,0.15); border-color: #00a1d6; color: #00a1d6; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  background: #080820;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.y47s5szh .logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.y47s5szh .logo-wrap img { width: 48px; height: 48px; border-radius: 10px; }
.y47s5szh .logo-wrap span {
  font-size: 1.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.y47s5szh p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.hao3kmnn h4 { font-size: 0.9rem; font-weight: 700; color: var(--text-white); margin-bottom: 16px; }
.hao3kmnn ul li { margin-bottom: 10px; }
.hao3kmnn ul li a { font-size: 0.83rem; color: var(--text-muted); transition: color var(--transition); }
.hao3kmnn ul li a:hover { color: var(--accent); }
.ultzvp66 {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.ultzvp66 p { font-size: 0.78rem; color: var(--text-muted); }
.ultzvp66 a { color: var(--text-muted); }
.ultzvp66 a:hover { color: var(--accent); }
.tsy24 { font-size: 0.75rem; color: rgba(255,255,255,0.25); }

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 14px 0;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: var(--text-white); }

/* ============================================================
   内页通用
   ============================================================ */
.4txkjns {
  background: linear-gradient(135deg, var(--primary) 0%, var(--bg-dark) 100%);
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--border);
}
.4txkjns h1 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: #fff; margin-bottom: 10px; }
.4txkjns p { color: var(--text-muted); font-size: 1rem; }

/* 视频详情页播放器 */
.ga9tl {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/9;
  margin-bottom: 24px;
}
.ga9tl iframe { width: 100%; height: 100%; border: none; }

/* 侧边栏 */
.5l630vc {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  margin-bottom: 20px;
}
.5l630vc h3 { font-size: 0.95rem; font-weight: 700; color: var(--text-white); margin-bottom: 16px; }

/* ============================================================
   弹幕效果
   ============================================================ */
.dy0hx3tm {
  background: rgba(0,0,0,0.5);
  border-radius: 4px;
  padding: 8px 16px;
  overflow: hidden;
  position: relative;
  height: 36px;
  margin: 12px 0;
}
.s9eo4k {
  position: absolute;
  white-space: nowrap;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.85);
  animation: danmaku-scroll 12s linear infinite;
  top: 50%;
  transform: translateY(-50%);
}
@keyframes danmaku-scroll {
  from { left: 100%; }
  to { left: -100%; }
}

/* ============================================================
   步骤指南
   ============================================================ */
.5s9z50r {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.nk3jivx {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  position: relative;
  text-align: center;
}
.cd82qrrb {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #0099cc);
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.nk3jivx h3 { font-size: 0.95rem; font-weight: 700; color: var(--text-white); margin-bottom: 8px; }
.nk3jivx p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.6; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .8cy9uhdj { grid-template-columns: 1fr 1fr; }
  .fapocv { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .main-nav { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: rgba(13,13,43,0.98); padding: 16px; border-bottom: 1px solid var(--border); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 16px; }
  .nav-toggle { display: block; }
  .dns1i { display: none; }
  .hero { min-height: 420px; }
  .hero-stats { gap: 20px; }
  .hero-stat .num { font-size: 1.4rem; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .bvt9r3gd { grid-template-columns: 1fr; }
  .8cy9uhdj { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .ultzvp66 { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .container { padding: 0 14px; }
  .hero h1 { font-size: 1.6rem; }
  .video-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; }
  .g2ax2v { flex-direction: column; align-items: center; }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   工具类
   ============================================================ */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-orange { color: var(--accent2); }
.text-muted { color: var(--text-muted); }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.hidden { display: none; }
.divider { border: none; border-top: 1px solid var(--border); margin: 32px 0; }

/* 懒加载占位 */
img[data-src] { background: var(--bg-card2); min-height: 80px; }