/*
 * 猎奇 主样式 - main.css
 * 域名: coguar.cn
 * 原创橙金暗色主题设计
 * ================================================ */

/* ---- CSS变量 ---- */
:root {
  --brand-orange: #FF6B35;
  --brand-gold: #FFD700;
  --brand-amber: #FF9500;
  --brand-deep: #CC4400;
  --bg-base: #0A0E1A;
  --bg-card: #111827;
  --bg-card2: #1C2333;
  --bg-nav: rgba(10,14,26,0.97);
  --border-color: #2A3550;
  --text-primary: #F0F4FF;
  --text-secondary: #9AAAC8;
  --text-muted: #5A6A8A;
  --grad-brand: linear-gradient(135deg, #FF6B35 0%, #FFD700 100%);
  --grad-warm: linear-gradient(135deg, #FF9500 0%, #FF6B35 100%);
  --grad-dark: linear-gradient(180deg, #0A0E1A 0%, #111827 100%);
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.3);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.45);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 24px rgba(255,107,53,0.25);
  --trans: all 0.22s cubic-bezier(0.4,0,0.2,1);
}

/* ---- 重置 ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--bg-base);
  color:var(--text-primary);
  line-height:1.65;
  min-height:100vh;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:var(--trans)}
img{max-width:100%;height:auto;display:block}
button{cursor:pointer;border:none;background:none;font-family:inherit;color:inherit}
ul,ol{list-style:none}
input,textarea,select{font-family:inherit;outline:none;border:none}

/* ---- 滚动条 ---- */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg-base)}
::-webkit-scrollbar-thumb{background:var(--brand-orange);border-radius:3px}

/* ---- 工具类 ---- */
.wrap{max-width:1300px;margin:0 auto;padding:0 24px}
.sec{padding:72px 0}
.sec-sm{padding:48px 0}
.text-center{text-align:center}
.text-brand{background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.badge{display:inline-block;padding:2px 10px;border-radius:50px;font-size:12px;font-weight:600;letter-spacing:.5px}
.badge-orange{background:rgba(255,107,53,.15);color:var(--brand-orange);border:1px solid rgba(255,107,53,.3)}
.badge-gold{background:rgba(255,215,0,.12);color:var(--brand-gold);border:1px solid rgba(255,215,0,.25)}
.badge-live{background:#E53E3E;color:#fff;animation:pulse-live 1.5s infinite}
@keyframes pulse-live{0%,100%{opacity:1}50%{opacity:.6}}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 28px;border-radius:var(--radius-md);font-size:15px;font-weight:600;transition:var(--trans);cursor:pointer}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(255,107,53,.4)}
.btn-outline{border:1.5px solid var(--brand-orange);color:var(--brand-orange);background:transparent}
.btn-outline:hover{background:var(--brand-orange);color:#fff}
.btn-ghost{color:var(--text-secondary);background:var(--bg-card2)}
.btn-ghost:hover{color:var(--brand-gold);background:var(--bg-card)}
.tag{display:inline-block;padding:4px 12px;background:var(--bg-card2);border:1px solid var(--border-color);border-radius:50px;font-size:13px;color:var(--text-secondary);transition:var(--trans)}
.tag:hover{border-color:var(--brand-orange);color:var(--brand-orange)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--border-color),transparent);margin:0}

/* ---- 淡入动画 ---- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-28px);transition:opacity .6s ease,transform .6s ease}
.reveal-left.in{opacity:1;transform:translateX(0)}

/* ================================================================
   顶部公告条
================================================================ */
.lltlb11{
  background:var(--grad-brand);
  padding:7px 0;
  font-size:13px;
  font-weight:500;
  color:#fff;
  overflow:hidden;
  white-space:nowrap;
}
.lltlb11 .wrap{display:flex;align-items:center;gap:16px}
.lltlb11 .v662frv{
  flex-shrink:0;
  background:rgba(0,0,0,.2);
  padding:2px 10px;
  border-radius:50px;
  font-size:11px;
  letter-spacing:1px;
}
.lltlb11 .dxtjm6{flex:1;overflow:hidden}
.lltlb11 .wu72y63{display:inline-block;animation:scroll-x 30s linear infinite}
@keyframes scroll-x{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ================================================================
   导航栏
================================================================ */
.site-nav{
  position:sticky;
  top:0;
  z-index:1000;
  background:var(--bg-nav);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-color);
  transition:var(--trans);
}
.site-nav.scrolled{box-shadow:var(--shadow-md)}
.nav-inner{
  display:flex;
  align-items:center;
  gap:0;
  height:64px;
}
/* Logo区域 */
.nav-logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  margin-right:32px;
  text-decoration:none;
}
.nav-logo img.logo-icon{width:36px;height:36px;border-radius:8px;object-fit:cover}
.nav-logo .logo-text{font-size:20px;font-weight:800;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.3px}
/* 主导航 */
.nav-menu{display:flex;align-items:center;gap:4px;flex:1}
.nav-menu a{
  padding:8px 14px;
  border-radius:var(--radius-sm);
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  transition:var(--trans);
  white-space:nowrap;
}
.nav-menu a:hover,.nav-menu a.active{color:var(--brand-orange);background:rgba(255,107,53,.08)}
.nav-menu a.active{font-weight:700}
/* 右侧操作区 */
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.nav-search-btn{
  display:flex;align-items:center;gap:6px;
  padding:7px 14px;
  background:var(--bg-card2);
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  font-size:13px;
  color:var(--text-muted);
  cursor:pointer;
  transition:var(--trans);
}
.nav-search-btn:hover{border-color:var(--brand-orange);color:var(--brand-orange)}
.nav-search-btn svg{width:14px;height:14px}
.nav-btn-login{
  padding:7px 20px;
  background:var(--grad-brand);
  border-radius:var(--radius-md);
  font-size:13px;
  font-weight:600;
  color:#fff;
  transition:var(--trans);
}
.nav-btn-login:hover{transform:translateY(-1px);box-shadow:var(--shadow-glow)}
/* 汉堡 */
.nav-hamburger{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.nav-hamburger span{display:block;width:22px;height:2px;background:var(--text-primary);border-radius:2px;transition:var(--trans)}
.nav-hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-hamburger.open span:nth-child(2){opacity:0}
.nav-hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ================================================================
   搜索栏（导航下方）
================================================================ */
.search-strip{
  background:var(--bg-card);
  border-bottom:1px solid var(--border-color);
  padding:14px 0;
}
.search-form-wrap{
  display:flex;
  align-items:center;
  gap:12px;
  max-width:720px;
  margin:0 auto;
}
.search-input-box{
  flex:1;
  display:flex;
  align-items:center;
  background:var(--bg-base);
  border:1.5px solid var(--border-color);
  border-radius:var(--radius-xl);
  padding:0 20px;
  gap:10px;
  transition:var(--trans);
}
.search-input-box:focus-within{border-color:var(--brand-orange);box-shadow:0 0 0 3px rgba(255,107,53,.12)}
.search-input-box svg{width:16px;height:16px;color:var(--text-muted);flex-shrink:0}
.search-input-box input{
  flex:1;
  background:transparent;
  color:var(--text-primary);
  font-size:14px;
  padding:10px 0;
}
.search-input-box input::placeholder{color:var(--text-muted)}
.search-submit{
  padding:10px 24px;
  background:var(--grad-brand);
  border-radius:var(--radius-xl);
  font-size:14px;
  font-weight:600;
  color:#fff;
  cursor:pointer;
  transition:var(--trans);
  flex-shrink:0;
}
.search-submit:hover{transform:translateY(-1px);box-shadow:var(--shadow-glow)}
.8nc8p{margin-top:10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;max-width:720px;margin-left:auto;margin-right:auto}
.euzr8je{font-size:12px;color:var(--text-muted)}
.8nc8p a{font-size:12px;color:var(--text-secondary);padding:3px 10px;background:var(--bg-base);border:1px solid var(--border-color);border-radius:50px;transition:var(--trans)}
.8nc8p a:hover{color:var(--brand-orange);border-color:var(--brand-orange)}

/* ================================================================
   Hero区域（全新瀑布流布局）
================================================================ */
.hero-section{
  position:relative;
  padding:60px 0 72px;
  overflow:hidden;
}
.hero-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:radial-gradient(ellipse 80% 60% at 50% 0%, rgba(255,107,53,.12) 0%, transparent 70%);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.hero-left{}
.ujbn8qxg{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  background:rgba(255,107,53,.1);
  border:1px solid rgba(255,107,53,.25);
  border-radius:50px;
  font-size:13px;
  color:var(--brand-orange);
  margin-bottom:24px;
}
.ujbn8qxg .dot{width:6px;height:6px;background:var(--brand-orange);border-radius:50%;animation:pulse-live 1.5s infinite}
.hero-h1{
  font-size:clamp(32px,4vw,52px);
  font-weight:900;
  line-height:1.2;
  margin-bottom:20px;
  letter-spacing:-1px;
}
.hero-h1 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{
  font-size:16px;
  color:var(--text-secondary);
  line-height:1.8;
  margin-bottom:32px;
  max-width:480px;
}
.hero-cta{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero-stats{
  display:flex;
  gap:32px;
  margin-top:40px;
  padding-top:32px;
  border-top:1px solid var(--border-color);
}
.hero-stat-item{}
.hero-stat-num{
  font-size:28px;
  font-weight:800;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-stat-label{font-size:12px;color:var(--text-muted);margin-top:2px}
/* Hero右侧：视频卡片堆叠 */
.hero-right{position:relative}
.hero-main-card{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  aspect-ratio:16/10;
}
.hero-main-card img{width:100%;height:100%;object-fit:cover}
.hero-main-card .play-overlay{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.35);
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  transition:var(--trans);
}
.hero-main-card:hover .play-overlay{opacity:1}
.play-circle{
  width:64px;height:64px;
  background:rgba(255,107,53,.9);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  backdrop-filter:blur(4px);
  transition:var(--trans);
}
.play-circle:hover{transform:scale(1.1)}
.play-circle svg{width:24px;height:24px;color:#fff;margin-left:4px}
.hero-card-info{
  position:absolute;
  bottom:0;left:0;right:0;
  padding:20px;
  background:linear-gradient(0deg,rgba(0,0,0,.85) 0%,transparent 100%);
}
.hero-card-title{font-size:16px;font-weight:700;margin-bottom:6px}
.hero-card-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:rgba(255,255,255,.7)}
.hero-mini-cards{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
  margin-top:12px;
}
.hero-mini-card{
  position:relative;
  border-radius:var(--radius-md);
  overflow:hidden;
  aspect-ratio:16/9;
  cursor:pointer;
}
.hero-mini-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.hero-mini-card:hover img{transform:scale(1.06)}
.hero-mini-card .mini-play{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.4);
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:var(--trans);
}
.hero-mini-card:hover .mini-play{opacity:1}
.mini-play-btn{
  width:36px;height:36px;
  background:rgba(255,107,53,.85);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
}
.mini-play-btn svg{width:14px;height:14px;color:#fff;margin-left:2px}
.hero-mini-label{
  position:absolute;
  bottom:8px;left:8px;right:8px;
  font-size:11px;font-weight:600;
  color:#fff;
  text-shadow:0 1px 4px rgba(0,0,0,.8);
  overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
}

/* ================================================================
   频道导航条
================================================================ */
.6oldb{
  background:var(--bg-card);
  border-bottom:1px solid var(--border-color);
  position:sticky;
  top:64px;
  z-index:900;
}
.t92av8{
  display:flex;
  align-items:center;
  gap:0;
  overflow-x:auto;
  scrollbar-width:none;
}
.t92av8::-webkit-scrollbar{display:none}
.lmm4m{
  flex-shrink:0;
  padding:14px 20px;
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  border-bottom:2px solid transparent;
  cursor:pointer;
  transition:var(--trans);
  white-space:nowrap;
}
.lmm4m:hover{color:var(--brand-orange)}
.channel-tab.active{color:var(--brand-orange);border-bottom-color:var(--brand-orange);font-weight:700}

/* ================================================================
   通用区块标题
================================================================ */
.sec-header{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:32px;
  gap:16px;
}
.sec-title-wrap{}
.sec-label{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--brand-orange);margin-bottom:8px;
}
.sec-label::before{content:'';display:block;width:16px;height:2px;background:var(--brand-orange);border-radius:2px}
.sec-h2{font-size:clamp(22px,3vw,32px);font-weight:800;letter-spacing:-.5px}
.sec-h2 span{background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.sec-desc{font-size:14px;color:var(--text-secondary);margin-top:6px}
.sec-more{
  display:flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;
  color:var(--brand-orange);
  flex-shrink:0;
  transition:var(--trans);
}
.sec-more:hover{gap:10px}
.sec-more svg{width:14px;height:14px}

/* ================================================================
   视频卡片网格
================================================================ */
.video-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:20px;
}
.video-grid-4{grid-template-columns:repeat(4,1fr)}
.video-grid-3{grid-template-columns:repeat(3,1fr)}
.video-grid-2{grid-template-columns:repeat(2,1fr)}
.vcard{
  background:var(--bg-card);
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border-color);
  transition:var(--trans);
  cursor:pointer;
}
.vcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,107,53,.3)}
.vcard-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-card2);
}
.vcard-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.vcard:hover .vcard-thumb img{transform:scale(1.06)}
.vcard-play{
  position:absolute;inset:0;
  background:rgba(0,0,0,.45);
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:var(--trans);
}
.vcard:hover .vcard-play{opacity:1}
.vcard-play-btn{
  width:48px;height:48px;
  background:rgba(255,107,53,.9);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  transition:var(--trans);
}
.vcard:hover .vcard-play-btn{transform:scale(1.1)}
.vcard-play-btn svg{width:18px;height:18px;color:#fff;margin-left:3px}
.vcard-duration{
  position:absolute;bottom:8px;right:8px;
  background:rgba(0,0,0,.75);
  color:#fff;font-size:11px;font-weight:600;
  padding:2px 7px;border-radius:4px;
}
.vcard-badge{
  position:absolute;top:8px;left:8px;
}
.vcard-body{padding:14px}
.vcard-title{
  font-size:14px;font-weight:600;
  line-height:1.5;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.vcard-meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--text-muted);
}
.vcard-author{display:flex;align-items:center;gap:6px}
.vcard-author-avatar{
  width:20px;height:20px;border-radius:50%;
  background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;
  font-size:10px;font-weight:700;color:#fff;
  flex-shrink:0;
}
.vcard-stats{display:flex;align-items:center;gap:10px}
.vcard-stat{display:flex;align-items:center;gap:3px}
.vcard-stat svg{width:11px;height:11px}

/* 大卡片 */
.vcard-lg .vcard-thumb{aspect-ratio:16/10}
.vcard-lg .vcard-title{font-size:16px}

/* ================================================================
   影视传媒专区（横向滚动卡片）
================================================================ */
.media-section{background:var(--bg-card);padding:64px 0}
.media-tabs{display:flex;gap:8px;margin-bottom:28px;flex-wrap:wrap}
.media-tab{
  padding:8px 20px;
  border-radius:50px;
  font-size:13px;font-weight:600;
  background:var(--bg-card2);
  border:1px solid var(--border-color);
  color:var(--text-secondary);
  cursor:pointer;transition:var(--trans);
}
.media-tab.active,.media-tab:hover{background:var(--grad-brand);color:#fff;border-color:transparent}
.media-scroll-wrap{overflow-x:auto;margin:0 -24px;padding:0 24px;scrollbar-width:none}
.media-scroll-wrap::-webkit-scrollbar{display:none}
.media-scroll{display:flex;gap:16px;width:max-content;padding-bottom:4px}
.media-card{
  width:220px;flex-shrink:0;
  background:var(--bg-base);
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border-color);
  transition:var(--trans);
  cursor:pointer;
}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,107,53,.3)}
.media-card-cover{
  position:relative;
  aspect-ratio:3/4;
  overflow:hidden;
}
.media-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.media-card:hover .media-card-cover img{transform:scale(1.06)}
.media-card-overlay{
  position:absolute;inset:0;
  background:rgba(0,0,0,.5);
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:var(--trans);
}
.media-card:hover .media-card-overlay{opacity:1}
.media-card-info{padding:12px}
.media-card-title{font-size:13px;font-weight:600;margin-bottom:4px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.media-card-sub{font-size:11px;color:var(--text-muted)}
.media-card-score{
  position:absolute;top:8px;right:8px;
  background:rgba(255,215,0,.9);
  color:#000;font-size:11px;font-weight:800;
  padding:2px 7px;border-radius:4px;
}

/* ================================================================
   AI赋能区块（卡片+图标）
================================================================ */
.ai-section{background:var(--bg-base);padding:72px 0;position:relative;overflow:hidden}
.ai-section::before{
  content:'';position:absolute;
  top:-200px;right:-200px;
  width:600px;height:600px;
  background:radial-gradient(circle,rgba(255,107,53,.08) 0%,transparent 70%);
  pointer-events:none;
}
.ai-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.ai-left{}
.ai-feature-list{display:flex;flex-direction:column;gap:20px;margin-top:32px}
.ai-feature-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px;
  background:var(--bg-card);
  border-radius:var(--radius-md);
  border:1px solid var(--border-color);
  transition:var(--trans);
}
.ai-feature-item:hover{border-color:rgba(255,107,53,.3);box-shadow:var(--shadow-sm)}
.ai-icon{
  width:44px;height:44px;flex-shrink:0;
  background:rgba(255,107,53,.1);
  border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;
}
.ai-feature-text h4{font-size:15px;font-weight:700;margin-bottom:4px}
.ai-feature-text p{font-size:13px;color:var(--text-secondary);line-height:1.6}
.ai-right{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.ai-stat-card{
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  padding:24px 20px;
  text-align:center;
  transition:var(--trans);
}
.ai-stat-card:hover{border-color:rgba(255,107,53,.3);transform:translateY(-3px)}
.ai-stat-card:first-child{grid-column:1/-1}
.ai-stat-num{font-size:36px;font-weight:900;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.ai-stat-label{font-size:13px;color:var(--text-secondary);margin-top:4px}

/* ================================================================
   社区功能区
================================================================ */
.community-section{background:var(--bg-card);padding:72px 0}
.community-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:40px;
}
.comm-card{
  background:var(--bg-base);
  border-radius:var(--radius-lg);
  padding:32px 24px;
  border:1px solid var(--border-color);
  text-align:center;
  transition:var(--trans);
  position:relative;
  overflow:hidden;
}
.comm-card::before{
  content:'';position:absolute;
  top:0;left:0;right:0;height:3px;
  background:var(--grad-brand);
  transform:scaleX(0);
  transition:var(--trans);
}
.comm-card:hover::before{transform:scaleX(1)}
.comm-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.comm-icon{
  width:64px;height:64px;
  background:rgba(255,107,53,.1);
  border-radius:var(--radius-lg);
  display:flex;align-items:center;justify-content:center;
  font-size:28px;
  margin:0 auto 20px;
  transition:var(--trans);
}
.comm-card:hover .comm-icon{background:rgba(255,107,53,.2);transform:scale(1.1)}
.comm-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.comm-card p{font-size:13px;color:var(--text-secondary);line-height:1.7}
.comm-card .comm-num{
  font-size:22px;font-weight:800;
  background:var(--grad-brand);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  margin-top:16px;
}

/* ================================================================
   专家团队
================================================================ */
.experts-section{background:var(--bg-base);padding:72px 0}
.experts-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:40px;
}
.expert-card{
  background:var(--bg-card);
  border-radius:var(--radius-lg);
  padding:32px 24px;
  border:1px solid var(--border-color);
  text-align:center;
  transition:var(--trans);
}
.expert-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,107,53,.25)}
.expert-avatar{
  width:88px;height:88px;
  border-radius:50%;
  object-fit:cover;
  margin:0 auto 16px;
  border:3px solid rgba(255,107,53,.3);
}
.expert-name{font-size:18px;font-weight:700;margin-bottom:4px}
.expert-role{font-size:13px;color:var(--brand-orange);margin-bottom:12px}
.expert-bio{font-size:13px;color:var(--text-secondary);line-height:1.7;margin-bottom:16px}
.expert-tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:20px}
.expert-tag{
  padding:3px 10px;
  background:rgba(255,107,53,.08);
  border:1px solid rgba(255,107,53,.2);
  border-radius:50px;
  font-size:11px;color:var(--brand-orange);
}
.expert-actions{display:flex;gap:8px;justify-content:center}
.expert-btn{
  padding:7px 16px;
  border-radius:var(--radius-sm);
  font-size:12px;font-weight:600;
  transition:var(--trans);
}
.expert-btn-primary{background:var(--grad-brand);color:#fff}
.expert-btn-outline{border:1px solid var(--border-color);color:var(--text-secondary)}
.expert-btn-outline:hover{border-color:var(--brand-orange);color:var(--brand-orange)}

/* ================================================================
   合作伙伴
================================================================ */
.0jqhse{background:var(--bg-card);padding:56px 0}
.0hjgob{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:40px;
  flex-wrap:wrap;
  margin-top:32px;
}
.gpqe8xhe{
  padding:12px 24px;
  background:var(--bg-base);
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  font-size:14px;font-weight:700;
  color:var(--text-muted);
  transition:var(--trans);
}
.gpqe8xhe:hover{color:var(--brand-orange);border-color:rgba(255,107,53,.3)}

/* ================================================================
   FAQ
================================================================ */
.faq-section{background:var(--bg-base);padding:72px 0}
.faq-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:40px;
}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:var(--trans);
}
.faq-item.open{border-color:rgba(255,107,53,.3)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;
  cursor:pointer;
  gap:16px;
}
.faq-q-text{font-size:15px;font-weight:600;flex:1}
.faq-icon{
  width:28px;height:28px;flex-shrink:0;
  background:var(--bg-card2);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  transition:var(--trans);
}
.faq-item.open .faq-icon{background:var(--brand-orange);transform:rotate(45deg)}
.faq-icon svg{width:14px;height:14px}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .35s ease,padding .35s ease;
  padding:0 24px;
  font-size:14px;color:var(--text-secondary);line-height:1.8;
}
.faq-item.open .faq-a{max-height:200px;padding:0 24px 20px}

/* ================================================================
   用户评价
================================================================ */
.reviews-section{background:var(--bg-card);padding:72px 0}
.reviews-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:40px;
}
.review-card{
  background:var(--bg-base);
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  padding:24px 20px;
  transition:var(--trans);
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:rgba(255,107,53,.2)}
.review-stars{display:flex;gap:3px;margin-bottom:12px}
.review-stars span{color:var(--brand-gold);font-size:14px}
.review-text{font-size:13px;color:var(--text-secondary);line-height:1.7;margin-bottom:16px}
.review-user{display:flex;align-items:center;gap:10px}
.review-avatar{
  width:36px;height:36px;border-radius:50%;
  background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:#fff;flex-shrink:0;
}
.review-name{font-size:13px;font-weight:600}
.review-date{font-size:11px;color:var(--text-muted)}

/* ================================================================
   联系我们
================================================================ */
.contact-section{background:var(--bg-base);padding:72px 0}
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  margin-top:40px;
}
.contact-info{}
.contact-info h3{font-size:22px;font-weight:700;margin-bottom:20px}
.contact-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:16px 0;
  border-bottom:1px solid var(--border-color);
}
.contact-item:last-child{border-bottom:none}
.contact-icon{
  width:40px;height:40px;flex-shrink:0;
  background:rgba(255,107,53,.1);
  border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
}
.contact-item-label{font-size:12px;color:var(--text-muted);margin-bottom:3px}
.contact-item-val{font-size:14px;font-weight:600}
.contact-qr-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.contact-qr-item{
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  padding:24px;
  text-align:center;
}
.contact-qr-placeholder{
  width:120px;height:120px;
  background:var(--bg-card2);
  border:2px dashed var(--border-color);
  border-radius:var(--radius-sm);
  margin:0 auto 12px;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;color:var(--text-muted);
}
.contact-qr-label{font-size:13px;font-weight:600;margin-bottom:4px}
.contact-qr-sub{font-size:11px;color:var(--text-muted)}

/* ================================================================
   分享区
================================================================ */
.xreoi9{
  background:linear-gradient(135deg,rgba(255,107,53,.08) 0%,rgba(255,215,0,.05) 100%);
  border-top:1px solid var(--border-color);
  border-bottom:1px solid var(--border-color);
  padding:40px 0;
}
.5kgew{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.ije97jjz h3{font-size:20px;font-weight:700;margin-bottom:4px}
.ije97jjz p{font-size:13px;color:var(--text-secondary)}
.4g8az6{display:flex;gap:12px;flex-wrap:wrap}
.5rpmgo55{
  display:flex;align-items:center;gap:8px;
  padding:10px 20px;
  border-radius:var(--radius-md);
  font-size:13px;font-weight:600;
  border:1.5px solid var(--border-color);
  color:var(--text-secondary);
  transition:var(--trans);
  cursor:pointer;
}
.5rpmgo55:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.share-btn.weixin:hover{border-color:#07C160;color:#07C160}
.share-btn.weibo:hover{border-color:#E6162D;color:#E6162D}
.share-btn.douyin:hover{border-color:#FE2C55;color:#FE2C55}
.share-btn.bilibili:hover{border-color:#00A1D6;color:#00A1D6}

/* ================================================================
   页脚
================================================================ */
.site-footer{
  background:var(--bg-card);
  border-top:1px solid var(--border-color);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo img{width:32px;height:32px;border-radius:6px}
.footer-logo-text{font-size:18px;font-weight:800;background:var(--grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.footer-brand-desc{font-size:13px;color:var(--text-secondary);line-height:1.8;margin-bottom:20px;max-width:280px}
.zk3zf{display:flex;gap:10px}
.68bno{
  width:36px;height:36px;
  background:var(--bg-base);
  border:1px solid var(--border-color);
  border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;
  transition:var(--trans);
}
.68bno:hover{border-color:var(--brand-orange);background:rgba(255,107,53,.1)}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text-primary)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:13px;color:var(--text-secondary);transition:var(--trans)}
.footer-col ul a:hover{color:var(--brand-orange)}
.footer-bottom{
  border-top:1px solid var(--border-color);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
}
.footer-copy{font-size:12px;color:var(--text-muted)}
.footer-copy a{color:var(--brand-orange)}
.footer-update{font-size:12px;color:var(--text-muted)}
.footer-links{display:flex;gap:16px}
.footer-links a{font-size:12px;color:var(--text-muted);transition:var(--trans)}
.footer-links a:hover{color:var(--brand-orange)}

/* ================================================================
   Toast
================================================================ */
.64x3s{
  position:fixed;bottom:32px;left:50%;transform:translateX(-50%) translateY(16px);
  background:rgba(17,24,39,.96);color:var(--text-primary);
  padding:12px 28px;border-radius:50px;font-size:14px;
  border:1px solid var(--border-color);box-shadow:var(--shadow-lg);
  z-index:9999;opacity:0;transition:all .3s ease;pointer-events:none;white-space:nowrap;
}
.toast-msg.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ================================================================
   内页通用
================================================================ */
.page-hero{
  background:var(--bg-card);
  border-bottom:1px solid var(--border-color);
  padding:40px 0;
}
.page-hero h1{font-size:clamp(24px,3vw,36px);font-weight:800;margin-bottom:8px}
.page-hero p{font-size:15px;color:var(--text-secondary)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:16px}
.breadcrumb a{color:var(--text-muted);transition:var(--trans)}
.breadcrumb a:hover{color:var(--brand-orange)}
.breadcrumb .sep{color:var(--border-color)}
.breadcrumb .current{color:var(--brand-orange)}

/* 侧边栏 */
.content-with-sidebar{display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:start}
.sidebar{}
.sidebar-widget{
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  padding:20px;
  margin-bottom:20px;
}
.sidebar-widget h3{font-size:15px;font-weight:700;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}
.sidebar-list{display:flex;flex-direction:column;gap:12px}
.sidebar-list-item{display:flex;gap:12px;cursor:pointer;transition:var(--trans)}
.sidebar-list-item:hover .sidebar-item-title{color:var(--brand-orange)}
.sidebar-item-thumb{width:72px;height:48px;border-radius:var(--radius-xs);object-fit:cover;flex-shrink:0}
.sidebar-item-title{font-size:13px;font-weight:500;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sidebar-item-meta{font-size:11px;color:var(--text-muted);margin-top:3px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}

/* 分页 */
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:40px}
.page-btn{
  width:36px;height:36px;
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;cursor:pointer;transition:var(--trans);
}
.page-btn:hover,.page-btn.active{background:var(--brand-orange);border-color:var(--brand-orange);color:#fff}

/* ================================================================
   响应式
================================================================ */
@media(max-width:1200px){
  .video-grid-4{grid-template-columns:repeat(3,1fr)}
  .reviews-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-right{order:-1}
  .ai-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .content-with-sidebar{grid-template-columns:1fr}
  .sidebar{display:none}
  .experts-grid{grid-template-columns:repeat(2,1fr)}
  .community-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-menu{display:none;position:fixed;top:64px;left:0;right:0;background:var(--bg-nav);flex-direction:column;padding:16px;border-bottom:1px solid var(--border-color);gap:4px}
  .nav-menu.open{display:flex}
  .nav-hamburger{display:flex}
  .nav-actions .nav-btn-login{display:none}
  .hero-stats{gap:20px}
  .hero-stats .hero-stat-num{font-size:22px}
  .video-grid-4,.video-grid-3{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:1fr}
  .experts-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .5kgew{flex-direction:column;text-align:center}
  .search-strip{display:none}
}
@media(max-width:480px){
  .wrap{padding:0 16px}
  .sec{padding:48px 0}
  .hero-h1{font-size:28px}
  .hero-mini-cards{grid-template-columns:1fr}
  .video-grid-4,.video-grid-3,.video-grid-2{grid-template-columns:1fr}
  .ai-right{grid-template-columns:1fr}
  .ai-stat-card:first-child{grid-column:auto}
  .0hjgob{gap:16px}
}