/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --bg0:#0A0D12;
  --bg1:#111720;
  --bg2:#18202B;
  --bg3:#222C39;
  --primary:#23C4B8;
  --primary-dark:#12A196;
  --primary-light:#6FE3D9;
  --accent:#F0A24B;
  --accent-dark:#C97F2E;
  --danger:#E5484D;
  --success:#3DD68C;
  --text:#F2F5F8;
  --text2:#9AA6B4;
  --text3:#5F6B7A;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --line-3:rgba(255,255,255,.20);
  --r-btn:999px;
  --r-card:14px;
  --r-poster:18px;
  --r-img:16px;
  --r-input:10px;
  --shadow-1:0 12px 32px rgba(0,0,0,.45);
  --shadow-2:0 24px 60px rgba(0,0,0,.55),0 0 0 1px rgba(35,196,184,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1280px;
  --pad-x:40px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg0);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),border-color .25s var(--ease),background-color .25s var(--ease);}
a:hover{color:var(--primary);}
button,input,textarea,select{font:inherit;color:inherit;background:none;border:none;outline:none;}
button{cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(35,196,184,.32);color:#fff;}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--pad-x);
}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:clamp(28px,3.4vw,44px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.12;
}
.section-head .sub{
  margin-top:12px;
  color:var(--text2);
  font-size:15px;
  line-height:1.7;
  max-width:620px;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.28em;
  color:var(--primary);
  text-transform:uppercase;
  margin-bottom:14px;
  font-weight:600;
}
.link-more{
  color:var(--primary);
  font-size:14px;
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding-bottom:2px;
}
.link-more svg{transition:transform .25s var(--ease);}
.link-more:hover svg{transform:translateX(4px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .25s var(--ease),background-color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#06110F;
  box-shadow:0 8px 24px rgba(35,196,184,.22);
}
.btn-primary:hover{
  background:var(--primary-light);
  color:#06110F;
  transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(35,196,184,.3);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--line-3);
}
.btn-ghost:hover{
  background:rgba(35,196,184,.12);
  border-color:rgba(35,196,184,.5);
  color:var(--text);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;pointer-events:none;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border:1px solid rgba(240,162,75,.55);
  border-radius:999px;
  font-size:11px;
  letter-spacing:.14em;
  color:var(--accent);
  font-weight:600;
  white-space:nowrap;
}
.badge--primary{border-color:rgba(35,196,184,.55);color:var(--primary);}
.badge--live{border-color:rgba(229,72,77,.55);color:#FF8A8D;}
.dot-live{
  width:6px;height:6px;border-radius:50%;
  background:var(--danger);
  display:inline-block;
  box-shadow:0 0 0 0 rgba(229,72,77,.6);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(229,72,77,.55);}
  70%{box-shadow:0 0 0 8px rgba(229,72,77,0);}
  100%{box-shadow:0 0 0 0 rgba(229,72,77,0);}
}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  transition:background-color .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(17,23,32,.86);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  border-bottom-color:var(--line);
  box-shadow:0 12px 32px rgba(0,0,0,.35);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:32px;
  height:76px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:rgba(35,196,184,.1);
  border:1px solid rgba(35,196,184,.28);
}
.logo-text{
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  line-height:1.2;
  white-space:nowrap;
}
.logo:hover .logo-text{color:var(--primary);}

.main-nav{flex:1;display:flex;justify-content:center;}
.main-nav > ul{
  display:flex;
  align-items:center;
  gap:4px;
}
.main-nav > ul > li{position:relative;}
.main-nav > ul > li > a{
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  font-size:15px;
  color:var(--text2);
  border-radius:8px;
  position:relative;
  font-weight:500;
}
.main-nav > ul > li > a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .28s var(--ease);
  border-radius:2px;
}
.main-nav > ul > li > a:hover{color:var(--text);}
.main-nav > ul > li > a:hover::after{transform:scaleX(1);}
.main-nav > ul > li > a.is-active{color:var(--primary);font-weight:600;}
.main-nav > ul > li > a.is-active::after{transform:scaleX(1);}

.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.icon-btn{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--text2);
  transition:border-color .25s var(--ease),color .25s var(--ease),background-color .25s var(--ease);
}
.icon-btn:hover{
  color:var(--primary);
  border-color:rgba(35,196,184,.45);
  background:rgba(35,196,184,.08);
}
.burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);color:var(--text);align-items:center;justify-content:center;}
.burger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* Mega 面板 */
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  left:50%;
  transform:translate(-50%,8px);
  width:1120px;
  max-width:calc(100vw - 60px);
  background:var(--bg3);
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  padding:28px;
  display:grid;
  grid-template-columns:1fr 1.15fr .9fr;
  gap:28px;
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  box-shadow:0 32px 80px rgba(0,0,0,.6);
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel{
  opacity:1;
  visibility:visible;
  pointer-events:auto;
  transform:translate(-50%,0);
}
.mega-col-title{
  font-size:12px;
  letter-spacing:.22em;
  color:var(--text3);
  margin-bottom:16px;
  font-weight:600;
}
.mega-list li a{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:9px 0;
  color:var(--text2);
  font-size:14.5px;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mega-list li:last-child a{border-bottom:none;}
.mega-list li a .num{
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-weight:300;
  font-size:17px;
  color:var(--accent);
  letter-spacing:.02em;
  min-width:26px;
}
.mega-list li a:hover{color:var(--text);}
.mega-list li a:hover .num{color:var(--primary);}
.mega-mini{display:flex;flex-direction:column;gap:12px;}
.mega-mini a{
  display:flex;
  gap:12px;
  align-items:center;
  padding:8px;
  border-radius:10px;
  border:1px solid transparent;
  transition:background-color .25s var(--ease),border-color .25s var(--ease);
}
.mega-mini a:hover{background:var(--bg2);border-color:var(--line);}
.mega-mini img{
  width:72px;height:48px;
  object-fit:cover;
  border-radius:8px;
  aspect-ratio:3/2;
  flex-shrink:0;
}
.mega-mini .mt{font-size:14px;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mega-mini .md{font-size:12px;color:var(--text3);font-family:"Inter",system-ui,sans-serif;}
.mega-cta{
  background:rgba(35,196,184,.08);
  border:1px solid rgba(35,196,184,.4);
  border-radius:12px;
  padding:22px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:20px;
  transition:background-color .25s var(--ease),border-color .25s var(--ease);
}
.mega-cta:hover{background:rgba(35,196,184,.13);border-color:rgba(35,196,184,.65);color:inherit;}
.mega-cta strong{font-size:16px;font-weight:700;line-height:1.5;display:block;}
.mega-cta p{font-size:13px;color:var(--text2);margin-top:8px;line-height:1.7;}
.mega-cta .arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
}
.mega-cta .arrow svg{transition:transform .25s var(--ease);}
.mega-cta:hover .arrow svg{transform:translateX(4px);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:200;
  background:var(--bg0);
  padding:24px;
  display:none;
  flex-direction:column;
  overflow-y:auto;
}
body.nav-open .mobile-drawer{display:flex;}
body.nav-open{overflow:hidden;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text);
}
.drawer-nav{display:flex;flex-direction:column;gap:2px;}
.drawer-nav a{
  padding:16px 4px;
  font-size:17px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--primary);}
.drawer-foot{margin-top:auto;padding-top:28px;}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:clamp(560px,78vh,860px);
  display:flex;
  align-items:flex-end;
  padding-top:120px;
  padding-bottom:0;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  transform:scale(1);
  animation:kenburns 24s ease-in-out infinite alternate;
  will-change:transform;
}
@keyframes kenburns{
  from{transform:scale(1);}
  to{transform:scale(1.06);}
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:
    linear-gradient(120deg,rgba(10,13,18,.96) 0%,rgba(10,13,18,.72) 42%,rgba(10,13,18,.28) 72%,rgba(10,13,18,.5) 100%);
}
.hero-fade{
  position:absolute;
  left:0;right:0;bottom:0;
  height:40%;
  background:linear-gradient(to bottom,rgba(10,13,18,0),var(--bg0) 88%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:3;
  width:100%;
  padding-bottom:64px;
}
.hero-content{max-width:900px;}
.hero h1{
  font-size:clamp(38px,6.2vw,84px);
  font-weight:800;
  line-height:1.06;
  letter-spacing:-.02em;
  margin:20px 0 0;
  text-wrap:balance;
}
.hero-sub{
  margin-top:22px;
  font-size:clamp(16px,1.6vw,19px);
  color:var(--text2);
  max-width:640px;
  line-height:1.75;
}
.hero-actions{
  margin-top:38px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-metrics{
  margin-top:56px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--line);
  padding-top:28px;
  max-width:820px;
}
.metric{
  padding-right:20px;
  position:relative;
}
.metric + .metric{padding-left:24px;border-left:1px solid var(--line);}
.metric strong{
  display:block;
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-size:28px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--primary);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.metric span{
  display:block;
  font-size:13px;
  color:var(--text3);
  margin-top:4px;
  letter-spacing:.02em;
}
.hero-corner{
  position:absolute;
  right:40px;
  bottom:64px;
  z-index:4;
  width:52px;height:52px;
  border-radius:14px;
  border:1px solid var(--line-3);
  background:rgba(17,23,32,.5);
  backdrop-filter:blur(8px);
  display:grid;place-items:center;
  color:var(--primary);
  transition:border-color .25s var(--ease),background-color .25s var(--ease);
}
.hero-corner:hover{border-color:rgba(35,196,184,.6);background:rgba(35,196,184,.12);}

/* ============ 横滑片库 ============ */
.rail-section{padding:96px 0 88px;}
.rail-wrap{position:relative;}
.rail{
  display:flex;
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px var(--pad-x) 26px;
  margin:0 calc(var(--pad-x) * -1);
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 auto;
  width:clamp(220px,22vw,300px);
  scroll-snap-align:start;
  border-radius:var(--r-poster);
  overflow:hidden;
  position:relative;
  background:var(--bg2);
  border:1px solid var(--line);
  transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.rail-card:hover{
  transform:translateY(-6px);
  border-color:rgba(35,196,184,.4);
  box-shadow:var(--shadow-2);
}
.rail-poster{
  position:relative;
  aspect-ratio:3/4;
  overflow:hidden;
}
.rail-poster img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.rail-card:hover .rail-poster img{transform:scale(1.04);}
.rail-poster::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(10,13,18,.92) 0%,rgba(10,13,18,.34) 44%,rgba(10,13,18,0) 72%);
}
.rail-num{
  position:absolute;
  top:14px;left:16px;
  z-index:2;
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-size:30px;
  font-weight:300;
  color:var(--accent);
  line-height:1;
  letter-spacing:.02em;
}
.rail-tag{
  position:absolute;
  top:16px;right:14px;
  z-index:2;
  padding:4px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.2);
  background:rgba(10,13,18,.5);
  backdrop-filter:blur(6px);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--text);
}
.rail-title{
  position:absolute;
  left:16px;right:16px;bottom:14px;
  z-index:2;
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rail-play{
  position:absolute;
  inset:0;
  z-index:3;
  display:grid;
  place-items:center;
  opacity:0;
  transition:opacity .3s var(--ease);
}
.rail-card:hover .rail-play{opacity:1;}
.rail-play span{
  width:54px;height:54px;
  border-radius:50%;
  border:1.5px solid rgba(35,196,184,.9);
  background:rgba(10,13,18,.55);
  display:grid;place-items:center;
  color:var(--primary);
}
.rail-nav{
  position:absolute;
  top:38%;
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--line-3);
  background:rgba(17,23,32,.85);
  backdrop-filter:blur(8px);
  display:grid;place-items:center;
  color:var(--text2);
  z-index:5;
  transition:color .25s var(--ease),border-color .25s var(--ease),background-color .25s var(--ease);
}
.rail-nav:hover{color:var(--primary);border-color:rgba(35,196,184,.55);background:rgba(17,23,32,.95);}
.rail-nav.prev{left:-14px;}
.rail-nav.next{right:-14px;}
.rail-dots{
  display:none;
  justify-content:center;
  gap:8px;
  margin-top:6px;
}
.rail-dots i{
  width:6px;height:6px;border-radius:50%;background:var(--line-3);
}
.rail-dots i.on{background:var(--primary);width:18px;border-radius:3px;}

/* ============ 热播推荐（非对称网格） ============ */
.hot-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:24px;
}
.hot-main{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/9;
  display:block;
  transition:border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.hot-main:hover{border-color:rgba(35,196,184,.4);box-shadow:var(--shadow-2);}
.hot-main img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.hot-main:hover img{transform:scale(1.03);}
.hot-main::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,13,18,.95) 6%,rgba(10,13,18,.55) 42%,rgba(10,13,18,.12) 78%);
  transition:opacity .35s var(--ease);
}
.hot-main:hover::after{opacity:.88;}
.hot-main-body{
  position:absolute;
  left:34px;right:34px;bottom:32px;
  z-index:3;
}
.hot-main-body h3{
  font-size:clamp(20px,2.2vw,28px);
  font-weight:700;
  line-height:1.3;
  margin:14px 0 0;
  letter-spacing:-.01em;
}
.hot-main-body p{
  margin-top:12px;
  font-size:14.5px;
  color:var(--text2);
  line-height:1.75;
  max-width:520px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.hot-main-body .link-more{margin-top:16px;}
.hot-side{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.hot-mini{
  display:flex;
  gap:16px;
  align-items:center;
  padding:14px;
  border-radius:var(--r-card);
  background:var(--bg1);
  border:1px solid var(--line);
  transition:background-color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease);
  flex:1;
}
.hot-mini:hover{
  background:var(--bg2);
  border-color:rgba(35,196,184,.35);
  transform:translateX(4px);
  color:inherit;
}
.hot-mini img{
  width:96px;height:64px;
  object-fit:cover;
  border-radius:10px;
  aspect-ratio:3/2;
  flex-shrink:0;
}
.hot-mini .hm-t{
  font-size:15px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.hot-mini .hm-m{
  margin-top:6px;
  display:flex;
  gap:10px;
  align-items:center;
  font-size:12.5px;
  color:var(--text3);
  font-family:"Inter",system-ui,sans-serif;
}
.hot-mini .hm-m .cat{color:var(--accent);font-family:inherit;}

/* ============ 最新内容（CMS 区） ============ */
.news-section{
  padding:96px 0;
  border-top:1px solid var(--line);
}
.news-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 56px;
}
.news-item{
  display:block;
  padding:24px 20px 24px 22px;
  border-bottom:1px solid var(--line);
  position:relative;
  transition:background-color .3s var(--ease);
}
.news-item::before{
  content:"";
  position:absolute;
  left:0;top:22px;bottom:22px;
  width:2px;
  background:var(--primary);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .3s var(--ease);
  border-radius:2px;
}
.news-item:hover{background:var(--bg2);}
.news-item:hover::before{transform:scaleY(1);}
.news-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:10px;
  flex-wrap:wrap;
}
.news-meta .cat{
  font-size:12px;
  color:var(--primary);
  letter-spacing:.08em;
  font-weight:600;
}
.news-meta time{
  font-size:12.5px;
  color:var(--text3);
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
}
.news-item h3{
  font-size:18px;
  font-weight:600;
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .25s var(--ease);
}
.news-item:hover h3{color:var(--primary-light);}
.news-item p{
  margin-top:10px;
  font-size:14px;
  color:var(--text2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
/* 空态 */
.empty-state{
  min-height:220px;
  border:1px dashed rgba(255,255,255,.12);
  border-radius:14px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  color:var(--text2);
  font-size:15px;
  background:rgba(24,32,43,.35);
}
.empty-state svg{color:var(--text3);}
/* 骨架屏（加载占位）：B2 灰块 + 微光扫过
.skeleton{background:var(--bg2);overflow:hidden;position:relative;border-radius:6px;}
.skeleton::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);animation:shine 1.4s infinite;}
@keyframes shine{from{transform:translateX(-100%);}to{transform:translateX(100%);}}
*/

/* ============ 分类入口 ============ */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.cat-card{
  position:relative;
  display:flex;
  align-items:center;
  gap:26px;
  min-height:180px;
  padding:32px 34px;
  border-radius:var(--r-card);
  background:var(--bg1);
  border:1px solid var(--line);
  overflow:hidden;
  transition:background-color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease);
}
.cat-card:hover{
  background:var(--bg2);
  border-color:rgba(35,196,184,.35);
  transform:translateY(-3px);
  color:inherit;
}
.cat-card .idx{
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-size:64px;
  font-weight:200;
  line-height:1;
  color:var(--accent);
  letter-spacing:-.02em;
  transition:color .3s var(--ease);
  flex-shrink:0;
}
.cat-card:hover .idx{color:var(--primary);}
.cat-card .cc-body{flex:1;min-width:0;}
.cat-card h3{
  font-size:20px;
  font-weight:700;
  letter-spacing:-.01em;
}
.cat-card p{
  margin-top:10px;
  font-size:14px;
  color:var(--text2);
  line-height:1.75;
}
.cat-card .cc-arrow{
  flex-shrink:0;
  color:var(--text3);
  transition:transform .3s var(--ease),color .3s var(--ease);
}
.cat-card:hover .cc-arrow{transform:translateX(6px);color:var(--primary);}
.cat-card--solid{
  background:var(--primary);
  border-color:var(--primary);
  color:#06110F;
}
.cat-card--solid .idx{color:rgba(6,17,15,.5);}
.cat-card--solid h3{color:#06110F;}
.cat-card--solid p{color:rgba(6,17,15,.78);}
.cat-card--solid .cc-arrow{color:rgba(6,17,15,.7);}
.cat-card--solid:hover{
  background:var(--primary-light);
  border-color:var(--primary-light);
  color:#06110F;
}
.cat-card--solid:hover .idx{color:rgba(6,17,15,.55);}
.cat-card--solid:hover .cc-arrow{color:#06110F;}

/* ============ 数据条 ============ */
.stats-strip{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
}
.stat{
  text-align:center;
  padding:0 20px;
  position:relative;
}
.stat + .stat::before{
  content:"";
  position:absolute;
  left:0;top:12%;bottom:12%;
  width:1px;
  background:var(--line);
}
.stat strong{
  display:block;
  font-family:"Inter","DIN Alternate",system-ui,sans-serif;
  font-size:clamp(30px,4vw,40px);
  font-weight:800;
  color:var(--primary);
  line-height:1.15;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.stat span{
  display:block;
  margin-top:8px;
  font-size:13px;
  color:var(--text3);
  letter-spacing:.04em;
}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:56px;
  align-items:start;
}
.faq-intro h2{
  font-size:clamp(28px,3.4vw,44px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.14;
}
.faq-intro p{
  margin-top:18px;
  color:var(--text2);
  font-size:15px;
  line-height:1.8;
}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:64px;
  padding:14px 4px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  transition:color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-icon{
  position:relative;
  width:20px;height:20px;
  flex-shrink:0;
  color:var(--primary);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-answer{
  padding:0 60px 26px 4px;
  color:var(--text2);
  font-size:15px;
  line-height:1.85;
  max-width:680px;
}
.faq-item[open] .faq-answer{animation:fadeUp .3s var(--ease);}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(6px);}
  to{opacity:1;transform:translateY(0);}
}

/* ============ CTA ============ */
.cta-section{
  padding:96px 0;
  position:relative;
  background:linear-gradient(to bottom,var(--bg1),var(--bg0));
  overflow:hidden;
}
.cta-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.08;
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:760px;
  margin:0 auto;
}
.cta-inner h2{
  font-size:clamp(26px,3.2vw,40px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
}
.cta-inner p{
  margin-top:18px;
  color:var(--text2);
  font-size:16px;
  line-height:1.8;
}
.cta-actions{
  margin-top:34px;
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:14px;
}
.cta-note{
  margin-top:22px;
  font-size:12.5px;
  color:var(--text3);
  letter-spacing:.02em;
}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg0);
  position:relative;
  overflow:hidden;
}
.footer-pattern{
  position:absolute;
  inset:0;
  opacity:.05;
  background-image:radial-gradient(circle,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:22px 22px;
  pointer-events:none;
}
.footer-main{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:48px;
  padding:72px 0 56px;
}
.footer-brand .logo{margin-bottom:20px;}
.footer-brand p{
  color:var(--text2);
  font-size:14px;
  line-height:1.8;
  max-width:320px;
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.2em;
  color:var(--text3);
  font-weight:600;
  margin-bottom:20px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col ul a{
  font-size:14px;
  color:var(--text2);
}
.footer-col ul a:hover{color:var(--primary);}
.footer-sub p{
  font-size:14px;
  color:var(--text2);
  line-height:1.8;
  margin-bottom:18px;
}
.sub-form{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.sub-form input{
  flex:1;
  min-width:0;
  padding:13px 16px;
  border-radius:var(--r-input);
  background:var(--bg1);
  border:1px solid var(--line);
  color:var(--text);
  font-size:14px;
  transition:border-color .25s var(--ease),background-color .25s var(--ease);
}
.sub-form input::placeholder{color:var(--text3);}
.sub-form input:focus{
  border-color:var(--primary);
  background:var(--bg2);
  outline:none;
  box-shadow:0 0 0 3px rgba(35,196,184,.14);
}
.sub-form button{padding:13px 22px;font-size:14px;}
.footer-bottom{
  position:relative;
  z-index:2;
  border-top:1px solid var(--line);
  padding:24px 0 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text3);
}
.footer-bottom .fb-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .fb-links a{color:var(--text3);}
.footer-bottom .fb-links a:hover{color:var(--primary);}
.lang-switch{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:12.5px;
  color:var(--text2);
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.lang-switch:hover{border-color:rgba(35,196,184,.45);color:var(--primary);}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .hero-bg{animation:none;transform:none;}
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  :root{--pad-x:32px;}
  .mega-panel{width:980px;}
  .rail-nav.prev{left:4px;}
  .rail-nav.next{right:4px;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .burger{display:flex;}
  .nav-actions .btn-primary{display:none;}
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 0;}
  .metric:nth-child(3){border-left:none;padding-left:0;}
  .metric:nth-child(3),.metric:nth-child(4){padding-top:4px;}
  .hot-grid{grid-template-columns:1fr;}
  .hot-main{aspect-ratio:16/10;}
  .hot-side{flex-direction:row;gap:14px;}
  .hot-mini{flex-direction:column;align-items:flex-start;gap:12px;}
  .hot-mini img{width:100%;height:auto;aspect-ratio:16/9;}
  .news-grid{grid-template-columns:1fr;gap:0;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .footer-main{grid-template-columns:1fr 1fr;gap:40px;}
}
@media (max-width:768px){
  :root{--pad-x:20px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .news-section{padding:56px 0;}
  .rail-section{padding:56px 0;}
  .cta-section{padding:64px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:30px;}
  .logo-text{font-size:15px;}
  .hero{min-height:auto;padding-top:104px;}
  .hero-inner{padding-bottom:48px;}
  .hero-actions .btn{flex:1;justify-content:center;}
  .hero-corner{display:none;}
  .hero-metrics{margin-top:40px;gap:20px 0;}
  .metric strong{font-size:24px;}
  .rail-nav{display:none;}
  .rail-dots{display:flex;}
  .cat-grid{grid-template-columns:1fr;}
  .cat-card{min-height:auto;padding:26px 24px;gap:20px;}
  .cat-card .idx{font-size:44px;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 0;}
  .stat:nth-child(3)::before{display:none;}
  .stat:nth-child(3),.stat:nth-child(4){padding-top:0;}
  .faq-answer{padding-right:24px;}
  .footer-main{grid-template-columns:1fr;gap:36px;padding:52px 0 40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:16px;}
  .hot-side{flex-direction:column;}
  .hot-main-body{left:20px;right:20px;bottom:20px;}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(30px,8.6vw,40px);}
  .hero-sub{font-size:15px;}
  .metric strong{font-size:22px;}
  .metric span{font-size:12px;}
  .cat-card .idx{font-size:36px;}
  .news-item{padding:20px 14px 20px 16px;}
  .rail-card{width:74vw;}
  .sub-form{flex-direction:column;}
  .sub-form button{width:100%;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A0D12;
  --bg-1:#111720;
  --bg-2:#18202B;
  --bg-3:#222C39;
  --brand:#23C4B8;
  --brand-d:#12A196;
  --brand-l:#6FE3D9;
  --amber:#F0A24B;
  --amber-d:#C97F2E;
  --red:#E5484D;
  --ok:#3DD68C;
  --tx:#F2F5F8;
  --tx-2:#9AA6B4;
  --tx-3:#5F6B7A;
  --line:rgba(255,255,255,.08);
  --line-h:rgba(255,255,255,.14);
  --brand-line:rgba(35,196,184,.4);
  --r-sm:10px;
  --r-card:14px;
  --r-poster:18px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 12px 32px rgba(0,0,0,.45);
  --sh-2:0 24px 60px rgba(0,0,0,.55);
  --sp:8px;
  --container:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--tx);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;object-fit:cover}
a{color:inherit;text-decoration:none}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.18;letter-spacing:-.02em;font-weight:800}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(35,196,184,.32);color:#fff}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section-tight{padding:72px 0}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,13,18,.7);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(17,23,32,.94);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;gap:28px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(35,196,184,.1);
  border:1px solid var(--brand-line);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:26px}
.main-nav > ul > li > a{
  position:relative;display:inline-block;padding:8px 0;
  font-size:15px;color:var(--tx-2);
  transition:color .2s var(--ease);
}
.main-nav > ul > li > a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.main-nav > ul > li > a:hover{color:var(--tx)}
.main-nav > ul > li > a:hover::after,
.main-nav > ul > li > a.is-active::after{transform:scaleX(1)}
.main-nav > ul > li > a.is-active{color:var(--brand)}
.has-mega{position:relative}
.mega-panel{
  position:absolute;top:calc(100% + 14px);left:50%;transform:translate(-50%,8px);
  width:min(1120px,calc(100vw - 80px));
  display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:32px;
  padding:28px;border-radius:var(--r-card);
  background:var(--bg-3);border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.mega-col-title{font-size:12px;letter-spacing:.22em;color:var(--tx-3);text-transform:uppercase;margin-bottom:14px}
.mega-list li + li{margin-top:10px}
.mega-list a{display:flex;align-items:baseline;gap:10px;font-size:15px;color:var(--tx-2);transition:color .2s var(--ease)}
.mega-list a:hover{color:var(--brand)}
.mega-list .num{font-family:Inter,"DIN Alternate",sans-serif;font-size:13px;font-weight:700;color:var(--amber);letter-spacing:.04em}
.mega-mini a{display:flex;gap:12px;align-items:center;padding:10px;border-radius:12px;transition:background .2s var(--ease)}
.mega-mini a:hover{background:rgba(255,255,255,.04)}
.mega-mini img{width:72px;height:48px;border-radius:8px;flex:none}
.mega-mini .mt{display:block;font-size:14px;line-height:1.5;color:var(--tx)}
.mega-mini .md{display:block;font-size:12px;color:var(--tx-3);margin-top:2px}
.mega-cta{
  display:flex;flex-direction:column;justify-content:space-between;gap:16px;
  padding:22px;border-radius:var(--r-card);
  background:rgba(35,196,184,.08);border:1px solid var(--brand-line);
}
.mega-cta strong{font-size:17px;line-height:1.5}
.mega-cta span{font-size:13px;color:var(--tx-2);line-height:1.7}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--tx-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand-line);background:rgba(35,196,184,.08)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);color:var(--tx);align-items:center;justify-content:center}
.nav-toggle-input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}

/* ============ Buttons / Badges ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--brand);color:#06110F;box-shadow:0 10px 26px rgba(35,196,184,.22)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(255,255,255,.2);color:var(--tx)}
.btn-ghost:hover{background:rgba(35,196,184,.12);border-color:var(--brand-line);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:600}
.link-more svg{transition:transform .22s var(--ease)}
.link-more:hover{text-decoration:underline;text-underline-offset:4px}
.link-more:hover svg{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.08em;
  color:var(--amber);border:1px solid rgba(240,162,75,.42);
  background:rgba(240,162,75,.07);white-space:nowrap;
}
.badge-brand{color:var(--brand-l);border-color:var(--brand-line);background:rgba(35,196,184,.09)}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.24em;color:var(--brand);margin-bottom:14px;font-weight:700}

/* ============ Breadcrumb ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--tx-3);margin-bottom:22px}
.breadcrumb a{color:var(--tx-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--tx-3);opacity:.6}
.breadcrumb .current{color:var(--tx-2)}

/* ============ Category Hero ============ */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.cat-hero-bg{position:absolute;inset:0;z-index:0}
.cat-hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(120deg,rgba(10,13,18,.96) 0%,rgba(10,13,18,.78) 46%,rgba(10,13,18,.42) 100%);
}
.cat-hero::before{
  content:"";position:absolute;left:0;right:0;bottom:0;height:42%;z-index:2;
  background:linear-gradient(180deg,rgba(10,13,18,0) 0%,rgba(10,13,18,.96) 100%);
}
.cat-hero-inner{position:relative;z-index:3;padding:56px 40px 52px;max-width:1280px;margin:0 auto}
.cat-hero h1{font-size:clamp(32px,4.4vw,58px);line-height:1.12;max-width:900px}
.cat-hero .lead{margin-top:18px;max-width:720px;color:var(--tx-2);font-size:16px}
.hero-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:34px;max-width:760px}
.fact{border-top:1px solid var(--line-h);padding-top:14px}
.fact b{display:block;font-family:Inter,"DIN Alternate",sans-serif;font-size:28px;font-weight:800;color:var(--brand);line-height:1.1}
.fact span{display:block;font-size:13px;color:var(--tx-3);margin-top:6px}

/* ============ Pill filter ============ */
.pillbar{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 34px}
.pill{
  padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--tx-2);
  border:1px solid var(--line);background:var(--bg-1);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.pill:hover{color:var(--tx);border-color:var(--line-h)}
.pill.is-active{background:var(--brand);color:#06110F;border-color:var(--brand);font-weight:700}

/* ============ Section head ============ */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.section-head h2{font-size:clamp(26px,3.2vw,40px)}
.section-sub{color:var(--tx-2);font-size:15px;max-width:620px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ Poster wall ============ */
.poster-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px 24px}
.pcard{position:relative;border-radius:var(--r-poster);transition:transform .3s var(--ease)}
.pcard > a{display:block;border-radius:var(--r-poster)}
.pc-media{
  position:relative;aspect-ratio:3/4;overflow:hidden;border-radius:var(--r-poster);
  background:var(--bg-2);border:1px solid var(--line);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.pc-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.pc-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,18,.1) 0%,rgba(10,13,18,.72) 100%);
}
.pc-num{
  position:absolute;top:14px;left:16px;z-index:2;
  font-family:Inter,"DIN Alternate",sans-serif;font-size:26px;font-weight:800;
  color:var(--amber);letter-spacing:.02em;line-height:1;
}
.pc-tag{position:absolute;top:16px;right:14px;z-index:2}
.pc-play{
  position:absolute;left:50%;top:52%;z-index:2;
  width:48px;height:48px;margin:-24px 0 0 -24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(10,13,18,.6);border:1px solid var(--brand-line);color:var(--brand);
  opacity:0;transform:scale(.9);transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.pcard h3{font-size:17px;font-weight:700;margin-top:16px;line-height:1.45}
.pcard p{font-size:14px;color:var(--tx-2);margin-top:8px;line-height:1.75}
.pc-meta{display:flex;align-items:center;gap:8px;margin-top:10px;font-size:12px;color:var(--tx-3);font-family:Inter,"DIN Alternate",sans-serif}
.pcard:hover{transform:translateY(-6px)}
.pcard:hover .pc-media{border-color:var(--brand-line);box-shadow:0 0 0 1px rgba(35,196,184,.35),var(--sh-1)}
.pcard:hover .pc-media img{transform:scale(1.04)}
.pcard:hover .pc-play{opacity:1;transform:scale(1)}

/* ============ Pager ============ */
.pager{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:48px}
.pager a,.pager span{
  min-width:44px;height:44px;padding:0 14px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--tx-2);border:1px solid var(--line);background:var(--bg-1);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.pager a:hover{color:var(--brand);border-color:var(--brand-line)}
.pager .is-current{background:var(--brand);color:#06110F;border-color:var(--brand);font-weight:700}

/* ============ Split feature ============ */
.split{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/11}
.split-media img{width:100%;height:100%}
.split h2{font-size:clamp(26px,3.2vw,38px)}
.split p{color:var(--tx-2);margin-top:16px}
.step-list{margin-top:26px;border-top:1px solid var(--line)}
.step-list li{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.step-list .no{
  font-family:Inter,"DIN Alternate",sans-serif;font-size:14px;font-weight:800;
  color:var(--amber);letter-spacing:.06em;flex:none;padding-top:3px;width:28px;
}
.step-list strong{display:block;font-size:16px;font-weight:700}
.step-list span{display:block;font-size:14px;color:var(--tx-2);margin-top:6px}

/* ============ Stats ============ */
.stats-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-1)}
.stats-inner{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.stat{padding:36px 24px;text-align:center;position:relative}
.stat + .stat::before{content:"";position:absolute;left:0;top:24%;bottom:24%;width:1px;background:var(--line)}
.stat b{display:block;font-family:Inter,"DIN Alternate",sans-serif;font-size:40px;font-weight:800;color:var(--brand);line-height:1.05}
.stat span{display:block;font-size:13px;color:var(--tx-3);margin-top:10px}

/* ============ Notice list ============ */
.notice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.notice{
  padding:26px 24px;border-radius:var(--r-card);
  background:var(--bg-1);border:1px solid var(--line);
  transition:background .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.notice:hover{background:var(--bg-2);border-color:var(--line-h);transform:translateY(-4px)}
.notice h3{font-size:18px;margin-bottom:12px}
.notice p{font-size:14px;color:var(--tx-2)}
.notice.is-accent{background:rgba(35,196,184,.1);border-color:var(--brand-line)}
.notice.is-accent h3{color:var(--brand-l)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-intro h2{font-size:clamp(26px,3.2vw,38px)}
.faq-intro p{color:var(--tx-2);margin-top:16px;font-size:15px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16px;font-weight:600;transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{position:relative;width:18px;height:18px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:50%;width:18px;height:2px;border-radius:2px;
  background:var(--brand);transform:translateY(-50%);transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-icon::after{transform:translateY(-50%) rotate(90deg)}
.faq-item[open] .faq-icon::after{transform:translateY(-50%) rotate(0);opacity:0}
.faq-item p{max-width:680px;font-size:15px;color:var(--tx-2);line-height:1.85;padding-bottom:24px}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--bg-1) 0%,var(--bg-0) 100%);
  border-top:1px solid var(--line);
}
.cta-band .cta-bg{position:absolute;inset:0;opacity:.08;z-index:0}
.cta-band .cta-bg img{width:100%;height:100%}
.cta-inner{position:relative;z-index:1;text-align:center;padding:88px 0}
.cta-inner h2{font-size:clamp(26px,3.2vw,40px);max-width:720px;margin:0 auto}
.cta-inner p{color:var(--tx-2);margin:18px auto 0;max-width:620px;font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.cta-note{margin-top:18px;font-size:12px;color:var(--tx-3)}

/* ============ Footer ============ */
.site-footer{position:relative;background:var(--bg-0);border-top:1px solid var(--line);overflow:hidden}
.footer-pattern{
  position:absolute;right:-40px;top:20px;width:320px;height:320px;opacity:.05;
  background-image:radial-gradient(rgba(35,196,184,.9) 1.4px,transparent 1.4px);
  background-size:22px 22px;
}
.footer-main{position:relative;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:44px;padding:72px 0 52px}
.footer-brand p{color:var(--tx-2);font-size:14px;margin-top:18px;max-width:320px}
.footer-col h4{font-size:14px;letter-spacing:.16em;color:var(--tx-3);margin-bottom:18px;font-weight:700}
.footer-col ul li + li{margin-top:12px}
.footer-col ul a{font-size:14px;color:var(--tx-2);transition:color .2s var(--ease)}
.footer-col ul a:hover{color:var(--brand)}
.footer-sub p{font-size:14px;color:var(--tx-2);margin-bottom:16px}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
  flex:1;min-width:180px;padding:12px 14px;border-radius:var(--r-sm);
  background:var(--bg-1);border:1px solid var(--line);color:var(--tx);font-size:14px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.sub-form input::placeholder{color:var(--tx-3)}
.sub-form input:focus{outline:none;border-color:var(--brand);background:var(--bg-2)}
.footer-bottom{
  position:relative;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding:24px 0 34px;font-size:13px;color:var(--tx-3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:20px}
.fb-links a{color:var(--tx-3);transition:color .2s var(--ease)}
.fb-links a:hover{color:var(--brand)}
.lang-tag{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 12px}

/* ============ Responsive ============ */
@media (max-width:1180px){
  .poster-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
}
@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;bottom:0;margin:0;
    background:var(--bg-0);border-top:1px solid var(--line);
    padding:22px 20px 110px;overflow-y:auto;display:none;
  }
  .nav-toggle-input:checked ~ .main-nav{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav > ul > li{border-bottom:1px solid var(--line)}
  .main-nav > ul > li > a{padding:16px 0;font-size:16px;width:100%}
  .main-nav > ul > li > a::after{display:none}
  .main-nav > ul > li > a.is-active{color:var(--brand)}
  .mega-panel{display:none}
  .nav-actions .icon-btn{display:none}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .cat-hero-inner{padding:44px 24px 46px}
  .split{grid-template-columns:1fr;gap:34px}
  .faq-wrap{grid-template-columns:1fr;gap:30px}
  .notice-grid{grid-template-columns:1fr 1fr}
  .stats-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(3)::before,.stat:nth-child(odd)::before{display:none}
  .section{padding:76px 0}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .poster-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 16px}
  .pc-num{font-size:22px}
  .hero-facts{grid-template-columns:1fr 1fr;gap:16px}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 40px}
  .footer-brand{grid-column:1 / -1}
  .footer-sub{grid-column:1 / -1}
  .notice-grid{grid-template-columns:1fr}
  .cta-inner{padding:66px 0}
}
@media (max-width:520px){
  .poster-grid{grid-template-columns:1fr;gap:26px}
  .hero-facts{grid-template-columns:1fr}
  .stats-inner{grid-template-columns:1fr}
  .stat + .stat::before{display:none}
  .stat{padding:24px 0;text-align:left}
  .cat-hero h1{font-size:clamp(28px,8vw,40px)}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .logo-text{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --b0:#0A0D12;--b1:#111720;--b2:#18202B;--b3:#222C39;
  --primary:#23C4B8;--primary-d:#12A196;--primary-l:#6FE3D9;
  --amber:#F0A24B;--amber-d:#C97F2E;
  --red:#E5484D;--ok:#3DD68C;
  --line:rgba(255,255,255,.08);--line-2:rgba(255,255,255,.14);--line-primary:rgba(35,196,184,.4);
  --t1:#F2F5F8;--t2:#9AA6B4;--t3:#5F6B7A;
  --r-sm:10px;--r-md:14px;--r-lg:18px;--r-pill:999px;
  --sh-1:0 12px 32px rgba(0,0,0,.45);
  --sh-2:0 24px 60px rgba(0,0,0,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1280px;
  --font-sans:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--b0);color:var(--t1);
  font-family:var(--font-sans);font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.2}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(35,196,184,.35)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);cursor:pointer;
  padding:13px 28px;font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#06110F}
.btn-primary:hover{background:var(--primary-l);transform:translateY(-2px);box-shadow:0 12px 28px rgba(35,196,184,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--t1);border-color:rgba(255,255,255,.2)}
.btn-ghost:hover{background:rgba(35,196,184,.12);border-color:rgba(35,196,184,.5)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14.5px;font-weight:600}
.link-arrow svg{transition:transform .2s var(--ease)}
.link-arrow:hover{color:var(--primary-l)}
.link-arrow:hover svg{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid rgba(240,162,75,.55);border-radius:var(--r-pill);
  padding:4px 12px;font-size:11.5px;letter-spacing:.14em;color:var(--amber);background:rgba(240,162,75,.08);
}
.badge-teal{border-color:rgba(35,196,184,.5);color:var(--primary-l);background:rgba(35,196,184,.1)}
.tag{
  display:inline-flex;align-items:center;border:1px solid var(--line-2);border-radius:var(--r-pill);
  padding:7px 15px;font-size:13px;color:var(--t2);background:var(--b1);
}
.tag:hover{border-color:var(--line-primary);color:var(--primary-l);background:var(--b2)}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--red);display:inline-block}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),backdrop-filter .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(17,23,32,.88);backdrop-filter:blur(12px);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;gap:26px;height:76px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(35,196,184,.1);border:1px solid var(--line-primary);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--t1)}
.main-nav{flex:1;display:flex}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav li{position:relative}
.main-nav a{
  display:inline-flex;align-items:center;padding:10px 14px;border-radius:var(--r-sm);
  font-size:15px;color:var(--t2);position:relative;
}
.main-nav a:hover{color:var(--t1);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--primary)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--primary);
}
.has-mega{position:static}
.mega-panel{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translate(-50%,8px);
  width:min(1120px,calc(100vw - 48px));
  display:grid;grid-template-columns:1.15fr 1.35fr 1fr;gap:30px;
  background:var(--b3);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.has-mega:hover .mega-panel,.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.mega-col-title{font-size:12.5px;letter-spacing:.16em;color:var(--t3);margin-bottom:14px}
.mega-list li a{display:flex;align-items:center;gap:12px;padding:9px 10px;border-radius:var(--r-sm);font-size:14.5px;color:var(--t2)}
.mega-list li a:hover{background:var(--b2);color:var(--t1)}
.mega-list .num{font-size:17px;font-weight:300;color:var(--amber);min-width:24px;font-variant-numeric:tabular-nums}
.mega-mini a{display:flex;gap:12px;padding:9px 10px;border-radius:var(--r-sm);align-items:center}
.mega-mini a:hover{background:var(--b2)}
.mega-mini img{width:72px;height:48px;border-radius:8px;flex:none}
.mega-mini .mt{display:block;font-size:14px;color:var(--t1);line-height:1.5}
.mega-mini .md{display:block;font-size:12.5px;color:var(--t3);margin-top:2px}
.mega-cta{
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
  background:rgba(35,196,184,.08);border:1px solid var(--line-primary);border-radius:var(--r-md);padding:22px;
}
.mega-cta strong{font-size:16px;display:block;margin-bottom:8px}
.mega-cta span{font-size:13.5px;color:var(--t2);line-height:1.7}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:transparent;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--t2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-primary);background:rgba(35,196,184,.08)}
.nav-toggle-input{position:fixed;left:-9999px;width:1px;height:1px;opacity:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:1.6px;border-radius:2px;background:var(--t1);transition:transform .2s var(--ease)}
.only-mobile{display:none}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;padding:150px 0 46px;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(10,13,18,.97) 0%,rgba(10,13,18,.82) 48%,rgba(10,13,18,.5) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);background-size:24px 24px;
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:22px}
.breadcrumb a{color:var(--t3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--t2);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.25;max-width:880px;margin:16px 0 18px;font-weight:800;letter-spacing:-.02em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--t3)}
.article-meta .sep{color:var(--t3);opacity:.6}
.article-meta .mono{font-variant-numeric:tabular-nums}
.article-figure{max-width:var(--container);margin:36px auto 0;padding:0 40px}
.article-figure img{width:100%;aspect-ratio:16/9;border-radius:16px;border:1px solid var(--line)}

/* ---------- 主体栅格 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:56px;padding-top:56px;padding-bottom:8px}
.article-main{min-width:0}
.article-body{font-family:var(--font-serif);font-size:17px;line-height:1.9;color:#DCE3EB;max-width:760px}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  font-family:var(--font-sans);font-size:26px;line-height:1.35;color:var(--t1);
  margin:48px 0 18px;padding-left:16px;position:relative;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:3px;border-radius:2px;background:var(--primary)}
.article-body h3{font-family:var(--font-sans);font-size:20px;margin:34px 0 14px;color:var(--t1)}
.article-body h4{font-family:var(--font-sans);font-size:17px;margin:26px 0 12px;color:var(--t1)}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.4em;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:0 0 1.6em;background:var(--b2);border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;padding:20px 24px;color:var(--t2);font-size:16px;
}
.article-body a{color:var(--primary-l);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary)}
.article-body img{border-radius:12px;margin:26px 0;width:100%}
.article-body figure{margin:26px 0}
.article-body figcaption{font-family:var(--font-sans);font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.article-body strong{color:#fff}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.6em;font-family:var(--font-sans);font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--b2);color:var(--t1);font-weight:600}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.04)}
.article-body code{background:var(--b2);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px}

.empty-state{
  border:1px dashed rgba(255,255,255,.12);border-radius:var(--r-md);
  padding:56px 24px;text-align:center;color:var(--t2);background:var(--b1);
}
.empty-state svg{margin:0 auto 16px;display:block;opacity:.55}
.empty-state p{font-family:var(--font-sans);font-size:16px;margin-bottom:18px}

/* ---------- 标签与分享 ---------- */
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);max-width:760px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.share-row{display:flex;align-items:center;gap:12px;margin-top:22px;color:var(--t3);font-size:13px}
.share-row .icon-btn{width:38px;height:38px;border-radius:50%}

/* ---------- 上下篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:48px}
.post-nav a{
  display:block;background:var(--b1);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;transition:border-color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease);
}
.post-nav a:hover{border-color:var(--line-primary);background:var(--b2);transform:translateY(-3px)}
.post-nav .pn-label{font-size:12.5px;letter-spacing:.14em;color:var(--amber);display:block;margin-bottom:10px}
.post-nav .pn-title{font-size:16px;font-weight:600;line-height:1.5;color:var(--t1)}
.post-nav .pn-sub{font-size:13.5px;color:var(--t3);margin-top:6px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;align-self:start;display:flex;flex-direction:column;gap:18px}
.side-card{background:var(--b1);border:1px solid var(--line);border-radius:var(--r-md);padding:22px}
.side-card h2{font-size:12.5px;letter-spacing:.18em;color:var(--primary);margin-bottom:16px;font-weight:600}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--r-sm);font-size:14.5px;color:var(--t2);
  border-left:2px solid transparent;
}
.side-link:hover{background:var(--b2);color:var(--t1);border-left-color:var(--primary)}
.side-link .arrow{color:var(--t3);transition:transform .2s var(--ease)}
.side-link:hover .arrow{color:var(--primary);transform:translateX(3px)}
.mini-post{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.mini-post:last-child{border-bottom:0;padding-bottom:0}
.mini-post img{width:72px;height:48px;border-radius:8px;flex:none}
.mini-post .mp-title{font-size:14px;line-height:1.55;color:var(--t1);display:block}
.mini-post:hover .mp-title{color:var(--primary-l)}
.mini-post .mp-date{font-size:12.5px;color:var(--t3);margin-top:4px;display:block;font-variant-numeric:tabular-nums}

/* ---------- 相关推荐 ---------- */
.related{margin-top:88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.4vw,30px)}
.section-head p{font-size:14.5px;color:var(--t2);margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  background:var(--b2);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.card:hover{transform:translateY(-6px);border-color:var(--line-primary);box-shadow:var(--sh-1)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.card-media img{width:100%;height:100%;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;top:12px;left:12px;background:rgba(10,13,18,.75);backdrop-filter:blur(4px)}
.card-body{padding:18px 20px 22px}
.card-body h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.card-body h3 a:hover{color:var(--primary-l)}
.card-body p{font-size:14px;color:var(--t2);line-height:1.75}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--t3);margin-top:14px;font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq-section{margin-top:88px;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px}
.faq-intro h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px}
.faq-intro p{font-size:14.5px;color:var(--t2);line-height:1.8;max-width:320px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--t1);transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary-l)}
.faq-item summary::after{
  content:"+";color:var(--primary);font-size:22px;font-weight:400;line-height:1;flex:none;
  transition:transform .24s var(--ease);
}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 0 22px;font-size:15px;color:var(--t2);line-height:1.85;max-width:680px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;margin-top:96px;padding:88px 0;overflow:hidden;
  background:linear-gradient(180deg,var(--b1) 0%,var(--b0) 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.08;pointer-events:none;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.cta-band .container{position:relative;z-index:2;text-align:center}
.cta-band h2{font-size:clamp(24px,3vw,38px);max-width:20ch;margin:0 auto 16px}
.cta-band p{color:var(--t2);font-size:15.5px;max-width:56ch;margin:0 auto 30px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-note{margin-top:18px;font-size:12.5px;color:var(--t3)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--b0);border-top:1px solid var(--line);padding:72px 0 0;overflow:hidden}
.footer-pattern{
  position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);background-size:24px 24px;
}
.site-footer .container{position:relative;z-index:2}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:56px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--t2);line-height:1.8;max-width:34ch}
.footer-col h4{font-size:13px;letter-spacing:.16em;color:var(--t3);font-weight:600;margin-bottom:18px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14.5px;color:var(--t2)}
.footer-col ul a:hover{color:var(--primary)}
.footer-sub p{font-size:14px;color:var(--t2);margin-bottom:16px}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 160px;min-width:0;background:var(--b1);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 14px;font-size:14px;color:var(--t1);transition:border-color .2s var(--ease),background .2s var(--ease);
}
.sub-form input::placeholder{color:var(--t3)}
.sub-form input:focus{outline:none;border-color:var(--primary);background:var(--b2)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid var(--line);padding:22px 0 30px;font-size:13.5px;color:var(--t3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:20px}
.fb-links a{color:var(--t3)}
.fb-links a:hover{color:var(--primary)}
.fb-lang{border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 14px;color:var(--t2);font-size:13px}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:40px}
}
@media (max-width:1024px){
  .container{padding:0 28px}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;inset:76px 0 0 0;background:var(--b0);display:none;
    flex-direction:column;padding:22px 24px 120px;overflow-y:auto;border-top:1px solid var(--line);
  }
  .nav-toggle-input:checked ~ .main-nav{display:flex}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav a{padding:14px 12px;font-size:16px;border-radius:var(--r-sm)}
  .main-nav a.is-active::after{display:none}
  .main-nav a.is-active{background:rgba(35,196,184,.1)}
  .mega-panel{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    width:100%;grid-template-columns:1fr;gap:22px;box-shadow:none;margin-top:8px;background:var(--b1);
  }
  .only-mobile{display:block;margin-top:10px}
  .nav-actions .icon-btn{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-side{position:static;top:auto}
  .faq-section{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-main{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .article-hero{padding-top:118px}
  .article-figure{padding:0 20px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:22px;margin-top:38px}
  .article-body h3{font-size:18.5px}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .post-nav{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-band{padding:64px 0;margin-top:64px}
  .related,.faq-section{margin-top:64px}
  .footer-main{grid-template-columns:1fr;gap:30px;padding-bottom:40px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .logo-text{font-size:15.5px}
  .btn{padding:12px 20px;font-size:14.5px}
  .article-hero h1{font-size:clamp(24px,7vw,30px)}
  .cta-actions .btn{width:100%}
  .breadcrumb .current{max-width:26ch}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg0:#0A0D12;
  --bg1:#111720;
  --bg2:#18202B;
  --bg3:#222C39;
  --pri:#23C4B8;
  --pri-d:#12A196;
  --pri-l:#6FE3D9;
  --amb:#F0A24B;
  --amb-d:#C97F2E;
  --red:#E5484D;
  --ok:#3DD68C;
  --tx:#F2F5F8;
  --tx2:#9AA6B4;
  --tx3:#5F6B7A;
  --line:rgba(255,255,255,.08);
  --line-hi:rgba(255,255,255,.14);
  --line-pri:rgba(35,196,184,.4);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:16px;
  --r-xl:18px;
  --r-pill:999px;
  --sh1:0 12px 32px rgba(0,0,0,.45);
  --sh2:0 24px 60px rgba(0,0,0,.55);
  --w:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg0);
  color:var(--tx);
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--pri)}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.18}
p{margin:0}
:focus-visible{outline:2px solid var(--pri);outline-offset:2px;border-radius:6px}
::selection{background:rgba(35,196,184,.3);color:#fff}

.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 40px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--pri);color:#06110F}
.btn-primary:hover{background:#31d3c6;color:#06110F;transform:translateY(-2px);box-shadow:0 14px 30px rgba(35,196,184,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(35,196,184,.22)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.2);color:var(--tx)}
.btn-ghost:hover{background:rgba(35,196,184,.12);border-color:rgba(35,196,184,.5);color:var(--tx);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn.is-disabled,.btn[disabled]{opacity:.4;pointer-events:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(240,162,75,.45);background:rgba(240,162,75,.07);
  color:var(--amb);font-size:11.5px;letter-spacing:.12em;line-height:1.7;
}
.badge-pri{border-color:var(--line-pri);background:rgba(35,196,184,.09);color:var(--pri-l)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-pill);
  border:1px solid var(--line-hi);color:var(--tx2);font-size:12px;line-height:1.7;
}
.dot-live{width:6px;height:6px;border-radius:50%;background:var(--red);display:inline-block}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.is-solid{
  background:rgba(17,23,32,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:rgba(35,196,184,.12);border:1px solid var(--line-pri);
}
.logo-text{font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}

.main-nav{margin-left:auto}
.main-nav>ul{display:flex;align-items:center;gap:4px}
.main-nav>ul>li{position:relative}
.main-nav>ul>li>a{
  display:inline-block;position:relative;
  padding:9px 14px;border-radius:8px;
  font-size:15px;color:var(--tx2);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.main-nav>ul>li>a:hover{color:var(--tx);background:rgba(255,255,255,.05)}
.main-nav>ul>li>a.is-active{color:var(--pri)}
.main-nav>ul>li>a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;
  height:2px;border-radius:2px;background:var(--pri);
}

.mega-panel{
  position:absolute;top:calc(100% + 14px);left:50%;
  transform:translate(-50%,8px);
  width:1120px;max-width:calc(100vw - 80px);
  display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:28px;
  padding:28px;background:var(--bg3);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--r-md);
  box-shadow:var(--sh2);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
}
.has-mega:hover .mega-panel,.has-mega:focus-within .mega-panel{
  opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);
}
.mega-col-title{
  font-size:12px;letter-spacing:.16em;color:var(--tx3);
  padding-bottom:14px;margin-bottom:12px;border-bottom:1px solid var(--line);
}
.mega-list{display:grid;gap:2px}
.mega-list a{
  display:flex;align-items:center;gap:12px;
  padding:10px 12px;border-radius:8px;font-size:14px;color:var(--tx2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.mega-list a:hover{background:rgba(35,196,184,.08);color:var(--tx)}
.mega-list .num{font-family:Inter,"DIN Alternate",sans-serif;font-size:13px;color:var(--amb);font-weight:600;letter-spacing:.06em}
.mega-mini{display:grid;gap:8px}
.mega-mini a{display:flex;gap:12px;padding:8px;border-radius:10px;transition:background .2s var(--ease)}
.mega-mini a:hover{background:rgba(255,255,255,.04)}
.mega-mini img{width:72px;height:48px;object-fit:cover;border-radius:8px;flex:none;border:1px solid var(--line)}
.mega-mini .mt{display:block;font-size:14px;color:var(--tx);line-height:1.5;margin-bottom:4px}
.mega-mini .md{display:block;font-size:12px;color:var(--tx3)}
.mega-cta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:20px;border-radius:var(--r-md);
  background:rgba(35,196,184,.08);border:1px solid var(--line-pri);
  font-size:14px;line-height:1.7;color:var(--tx);height:100%;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.mega-cta:hover{background:rgba(35,196,184,.14);color:var(--tx);transform:translateY(-2px)}
.mega-cta .arw{color:var(--pri);font-size:18px;flex:none}

.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{
  width:40px;height:40px;flex:none;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:transparent;color:var(--tx2);cursor:pointer;
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.icon-btn:hover{border-color:var(--line-pri);color:var(--pri);background:rgba(35,196,184,.08)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:transparent;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--tx);transition:transform .2s var(--ease),opacity .2s var(--ease)}
#navToggle{position:absolute;opacity:0;pointer-events:none}
#navToggle:checked ~ .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
#navToggle:checked ~ .nav-toggle span:nth-child(2){opacity:0}
#navToggle:checked ~ .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--tx3);margin-bottom:20px}
.crumb a{color:var(--tx3)}
.crumb a:hover{color:var(--pri)}
.crumb .sep{opacity:.5}
.crumb .cur{color:var(--tx2)}

/* ---------- Hero ---------- */
.page-hero{position:relative;padding:152px 0 88px;overflow:hidden}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:26px 26px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 76%);
  mask-image:linear-gradient(180deg,#000 0%,transparent 76%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero-copy h1{
  font-size:clamp(34px,4.6vw,58px);
  line-height:1.12;letter-spacing:-.02em;margin:20px 0 18px;
}
.hero-copy h1 em{font-style:normal;color:var(--pri);display:block}
.hero-lead{color:var(--tx2);font-size:17px;line-height:1.85;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:44px;
  padding-top:28px;border-top:1px solid var(--line);
}
.hero-facts .hf b{display:block;font-family:Inter,"DIN Alternate",sans-serif;font-size:26px;font-weight:800;color:var(--tx);line-height:1.2}
.hero-facts .hf span{display:block;margin-top:6px;font-size:13px;color:var(--tx3)}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh1);
  aspect-ratio:16/11;background:var(--bg2);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media .badge{position:absolute;top:16px;left:16px;background:rgba(10,13,18,.72);backdrop-filter:blur(6px)}
.hero-media .cap{
  position:absolute;left:0;right:0;bottom:0;padding:52px 22px 20px;
  background:linear-gradient(180deg,transparent,rgba(10,13,18,.9));
  font-size:14px;color:var(--tx2);
}

/* ---------- 区块 ---------- */
.section{padding:96px 0;position:relative}
.section-alt{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-line{width:48px;height:3px;border-radius:3px;background:var(--pri);margin-bottom:22px}
.section-head.center .sec-line{margin-left:auto;margin-right:auto}
.sec-title{font-size:clamp(26px,3.2vw,40px);line-height:1.16}
.sec-sub{margin-top:16px;color:var(--tx2);font-size:16px;line-height:1.85;max-width:680px}
.section-head.center .sec-sub{margin-left:auto;margin-right:auto}

/* ---------- 能力卡 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.cap-card{
  position:relative;padding:30px;border-radius:var(--r-md);
  background:var(--bg2);border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease),background .28s var(--ease);
  overflow:hidden;
}
.cap-card::after{
  content:"";position:absolute;left:0;top:0;width:2px;height:100%;
  background:var(--pri);transform:scaleY(0);transform-origin:top;
  transition:transform .3s var(--ease);
}
.cap-card:hover{transform:translateY(-4px);border-color:var(--line-pri);box-shadow:var(--sh2);background:var(--bg3)}
.cap-card:hover::after{transform:scaleY(1)}
.cap-card .idx{
  font-family:Inter,"DIN Alternate",sans-serif;
  font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--amb);
}
.cap-card h3{margin:14px 0 10px;font-size:20px}
.cap-card p{color:var(--tx2);font-size:15px;line-height:1.8}

/* ---------- 数字条 ---------- */
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--bg1);overflow:hidden;
}
.stat{padding:28px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:Inter,"DIN Alternate",sans-serif;font-size:34px;font-weight:800;color:var(--pri);line-height:1.1}
.stat span{display:block;margin-top:10px;font-size:13px;color:var(--tx3);line-height:1.7}

/* ---------- 左图右文长列表 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.entry-list{border-top:1px solid var(--line)}
.entry{
  position:relative;display:grid;grid-template-columns:40% minmax(0,1fr);
  gap:28px;padding:30px 0;border-bottom:1px solid var(--line);
  transition:background .28s var(--ease);
}
.entry::before{
  content:"";position:absolute;left:0;top:30px;bottom:30px;width:2px;
  background:var(--pri);transform:scaleY(0);transform-origin:top;
  transition:transform .3s var(--ease);
}
.entry:hover::before{transform:scaleY(1)}
.entry:hover{background:linear-gradient(90deg,rgba(35,196,184,.055),transparent 62%)}
.entry-thumb{
  border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/9;background:var(--bg2);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.entry:hover .entry-thumb img{transform:scale(1.04)}
.entry-num{
  font-family:Inter,"DIN Alternate",sans-serif;
  font-size:13px;font-weight:700;letter-spacing:.2em;color:var(--amb);
}
.entry-body h3{margin:10px 0 10px;font-size:21px;line-height:1.35}
.entry-body p{color:var(--tx2);font-size:15px;line-height:1.82}
.entry-meta{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:14px;font-size:13px;color:var(--tx3)}
.entry-meta .mx{display:inline-flex;align-items:center;gap:6px}
.entry-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:14px;font-weight:600;color:var(--pri);
}
.entry-link svg{transition:transform .22s var(--ease)}
.entry:hover .entry-link svg{transform:translateX(4px)}

/* ---------- 侧栏 ---------- */
.aside{position:sticky;top:96px;display:grid;gap:20px}
.aside-card{background:var(--bg1);border:1px solid var(--line);border-radius:var(--r-md);padding:22px}
.aside-card h4{font-size:15px;margin-bottom:14px;letter-spacing:.04em}
.aside-nav a{
  display:block;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--tx2);
  border-left:2px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.aside-nav a:hover{background:var(--bg2);color:var(--tx);border-left-color:var(--pri)}
.aside-card .hint{font-size:13px;color:var(--tx3);line-height:1.8}
.aside-card .btn{width:100%;margin-top:16px}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  position:relative;padding:30px 24px;border-radius:var(--r-md);
  background:var(--bg2);border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:var(--line-pri);box-shadow:var(--sh1)}
.step .n{
  font-family:Inter,"DIN Alternate",sans-serif;
  font-size:34px;font-weight:800;line-height:1;color:rgba(35,196,184,.32);
}
.step h3{margin:16px 0 10px;font-size:18px}
.step p{color:var(--tx2);font-size:14.5px;line-height:1.8}

/* ---------- 场景双栏 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh1);aspect-ratio:4/3}
.split-media img{width:100%;height:100%;object-fit:cover}
.check-list{display:grid;gap:16px;margin-top:28px}
.check-list li{display:flex;gap:14px;align-items:flex-start;font-size:15.5px;color:var(--tx2);line-height:1.8}
.check-list li strong{display:block;color:var(--tx);font-size:16px;font-weight:600;margin-bottom:4px}
.check-list .ck{
  flex:none;width:22px;height:22px;border-radius:50%;margin-top:5px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-pri);background:rgba(35,196,184,.1);color:var(--pri);font-size:12px;
}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:58px;padding:16px 0;font-size:16px;font-weight:600;
  cursor:pointer;list-style:none;
  transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--pri)}
.faq .ic{position:relative;width:20px;height:20px;flex:none}
.faq .ic::before,.faq .ic::after{
  content:"";position:absolute;background:var(--pri);border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq .ic::before{left:0;top:9px;width:20px;height:2px}
.faq .ic::after{left:9px;top:0;width:2px;height:20px}
.faq details[open] summary .ic::after{transform:rotate(90deg);opacity:0}
.faq .ans{padding:0 0 22px;color:var(--tx2);font-size:15px;line-height:1.85;max-width:680px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;text-align:center;
  padding:92px 0;border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--bg1),var(--bg0));
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  opacity:.08;
}
.cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto}
.cta-inner h2{font-size:clamp(24px,3vw,36px)}
.cta-inner p{margin-top:16px;color:var(--tx2);font-size:16px;line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.cta-note{margin-top:20px;font-size:12.5px;color:var(--tx3)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg0);border-top:1px solid var(--line);padding:72px 0 0;overflow:hidden}
.footer-pattern{
  position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 70%);
  mask-image:linear-gradient(180deg,#000,transparent 70%);
}
.footer-main{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand p{margin-top:16px;color:var(--tx2);font-size:14px;line-height:1.85;max-width:320px}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:var(--tx);margin-bottom:18px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--tx2)}
.footer-col a:hover{color:var(--pri)}
.footer-sub p{color:var(--tx2);font-size:14px;line-height:1.8;margin-bottom:16px}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 180px;height:46px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--bg2);border:1px solid var(--line);color:var(--tx);
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.sub-form input::placeholder{color:var(--tx3)}
.sub-form input:focus{outline:none;border-color:var(--pri);background:var(--bg3)}
.footer-bottom{
  position:relative;z-index:2;margin-top:56px;padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--tx3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px}
.fb-links a{color:var(--tx3)}
.fb-links a:hover{color:var(--pri)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .mega-panel{width:1000px}
}
@media (max-width:1024px){
  .container{padding:0 28px}
  .nav-toggle{display:inline-flex}
  #navToggle{display:none}
  .logo{margin-right:auto}
  .main-nav{
    position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;
    margin-left:0;padding:22px 24px 120px;overflow-y:auto;
    background:var(--bg0);border-top:1px solid var(--line);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
  }
  #navToggle:checked ~ .main-nav{opacity:1;visibility:visible;transform:none}
  .main-nav>ul{flex-direction:column;align-items:stretch;gap:2px}
  .main-nav>ul>li>a{padding:14px 12px;font-size:16px;border-radius:10px}
  .main-nav>ul>li>a.is-active{color:var(--pri);background:rgba(35,196,184,.1)}
  .main-nav>ul>li>a.is-active::after{display:none}
  .mega-panel{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    width:auto;max-width:none;grid-template-columns:1fr;gap:20px;
    padding:16px 0 8px 12px;background:transparent;border:0;box-shadow:none;
  }
  .has-mega:hover .mega-panel,.has-mega:focus-within .mega-panel{transform:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-lead{max-width:none}
  .layout{grid-template-columns:minmax(0,1fr);gap:44px}
  .aside{position:static}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .split{grid-template-columns:1fr;gap:36px}
  .footer-main{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .page-hero{padding:124px 0 64px}
  .hero-copy h1{margin:16px 0 14px}
  .hero-facts{gap:24px}
  .hero-facts .hf{flex:1 1 40%}
  .cap-grid{grid-template-columns:1fr}
  .entry{grid-template-columns:1fr;gap:18px;padding:24px 0}
  .entry::before{display:none}
  .entry-body h3{font-size:19px}
  .stat{padding:22px 18px}
  .stat b{font-size:28px}
  .steps{grid-template-columns:1fr}
  .cta-band{padding:68px 0}
  .footer-main{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .logo-text{font-size:15px}
  .hero-actions .btn{width:100%}
  .stat-row{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .badge{font-size:11px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --bg-0:#0A0D12;
  --bg-1:#111720;
  --bg-2:#18202B;
  --bg-3:#222C39;
  --primary:#23C4B8;
  --primary-d:#12A196;
  --primary-l:#6FE3D9;
  --amber:#F0A24B;
  --amber-d:#C97F2E;
  --crimson:#E5484D;
  --ok:#3DD68C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --line-pri:rgba(35,196,184,.40);
  --t1:#F2F5F8;
  --t2:#9AA6B4;
  --t3:#5F6B7A;
  --r-pill:999px;
  --r-card:14px;
  --r-poster:18px;
  --r-img:16px;
  --r-input:10px;
  --sh-1:0 12px 32px rgba(0,0,0,.45);
  --sh-2:0 24px 60px rgba(0,0,0,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1280px;
  --font-sans:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","DIN Alternate","SFMono-Regular",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.15;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(35,196,184,.3);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(17,23,32,.78);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(17,23,32,.96);border-bottom-color:var(--line-2);}
.nav-wrap{display:flex;align-items:center;gap:32px;min-height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:rgba(35,196,184,.10);
  border:1px solid rgba(35,196,184,.32);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.main-nav{margin-right:auto;}
.main-nav > ul{display:flex;align-items:center;gap:26px;}
.main-nav > ul > li{position:relative;}
.main-nav > ul > li > a{
  display:inline-block;position:relative;
  padding:24px 2px;font-size:15px;color:var(--t2);
  transition:color .25s var(--ease);
}
.main-nav > ul > li > a::after{
  content:"";position:absolute;left:2px;right:2px;bottom:16px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.main-nav > ul > li > a:hover{color:var(--t1);}
.main-nav > ul > li > a:hover::after{transform:scaleX(1);}
.main-nav > ul > li > a.is-active{color:var(--primary);}
.main-nav > ul > li > a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);color:var(--t2);
  transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-pri);background:rgba(35,196,184,.08);}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);align-items:center;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease);}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  transition:transform .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary{
  background:linear-gradient(120deg,var(--primary),var(--primary-l));
  color:#06110F;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(35,196,184,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;color:var(--t1);
  border-color:rgba(255,255,255,.20);
}
.btn-ghost:hover{background:rgba(35,196,184,.12);border-color:rgba(35,196,184,.50);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* ---------- mega panel ---------- */
.has-mega .mega-panel{
  position:absolute;top:calc(100% - 8px);left:50%;
  width:min(1120px,calc(100vw - 80px));
  transform:translate(-50%,8px);
  display:grid;grid-template-columns:1.05fr 1.25fr 1fr;gap:28px;
  padding:28px;border-radius:var(--r-card);
  background:var(--bg-3);border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
  z-index:120;
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);}
.mega-col-title{font-size:12px;letter-spacing:.22em;color:var(--t3);margin-bottom:16px;}
.mega-list li + li{margin-top:4px;}
.mega-list a{
  display:flex;align-items:baseline;gap:12px;
  padding:9px 10px;border-radius:10px;font-size:15px;color:var(--t2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.mega-list a:hover{background:var(--bg-2);color:var(--t1);}
.mega-list .num{font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--amber);letter-spacing:.06em;}
.mega-mini a{
  display:flex;gap:12px;align-items:center;
  padding:8px;border-radius:12px;
  transition:background .2s var(--ease);
}
.mega-mini a:hover{background:var(--bg-2);}
.mega-mini img{width:72px;height:48px;object-fit:cover;border-radius:8px;flex-shrink:0;}
.mega-mini .mt{display:block;font-size:14px;color:var(--t1);line-height:1.5;}
.mega-mini .md{display:block;font-size:12px;color:var(--t3);margin-top:2px;}
.mega-cta-card{
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
  padding:22px;border-radius:12px;
  background:rgba(35,196,184,.08);
  border:1px solid rgba(35,196,184,.38);
}
.mega-cta-card .label{font-size:12px;letter-spacing:.2em;color:var(--primary);}
.mega-cta-card p{font-size:15px;color:var(--t1);line-height:1.7;}
.mega-cta-card a{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.mega-cta-card a span{transition:transform .2s var(--ease);}
.mega-cta-card a:hover span{transform:translateX(4px);}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);}
.crumb a{color:var(--t3);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--t3);opacity:.7;}
.crumb .cur{color:var(--t1);}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:64px 0 76px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,var(--bg-1),var(--bg-0));
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(35,196,184,.9) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.05;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.95),transparent 88%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.95),transparent 88%);
}
.cat-hero .container{position:relative;z-index:1;}
.hero-rule{width:48px;height:3px;background:var(--primary);border-radius:2px;margin:36px 0 26px;}
.hero-title{font-size:clamp(38px,6vw,72px);font-weight:800;line-height:1.06;}
.hero-title .kw{color:var(--primary);}
.hero-sub{margin-top:22px;font-size:clamp(16px,1.4vw,18px);color:var(--t2);max-width:720px;line-height:1.8;}
.hero-meta{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.08em;color:var(--amber);
  border:1px solid rgba(240,162,75,.42);
  background:rgba(240,162,75,.07);
}
.chip.is-primary{color:var(--primary);border-color:var(--line-pri);background:rgba(35,196,184,.08);}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--crimson);display:inline-block;}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.eyebrow{font-size:12px;letter-spacing:.24em;color:var(--primary);margin-bottom:14px;}
.h2{font-size:clamp(26px,3.2vw,42px);}
.sec-sub{margin-top:14px;color:var(--t2);font-size:15px;max-width:640px;line-height:1.8;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  transition:color .2s var(--ease);
}
.link-arrow span{transition:transform .25s var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.feat-card{
  position:relative;
  padding:30px 30px 28px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.feat-card:hover{transform:translateY(-4px);border-color:var(--line-pri);background:var(--bg-3);box-shadow:var(--sh-1);}
.feat-card .num{
  font-family:var(--font-num);font-size:14px;font-weight:700;letter-spacing:.12em;
  color:var(--amber);display:block;margin-bottom:16px;
}
.feat-card h3{font-size:20px;margin-bottom:12px;}
.feat-card p{color:var(--t2);font-size:15px;line-height:1.85;}
.feat-card .link-arrow{margin-top:20px;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:44px;}
.timeline::before{
  content:"";position:absolute;left:13px;top:10px;bottom:10px;width:1px;
  background:rgba(255,255,255,.20);
}
.tl-item{position:relative;}
.tl-item + .tl-item{margin-top:18px;}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:34px;
  width:9px;height:9px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 5px rgba(35,196,184,.12);
}
.tl-card{
  display:grid;grid-template-columns:52px 108px minmax(0,1fr) auto;
  gap:20px;align-items:center;
  padding:18px 24px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
}
.tl-card:hover{transform:translateY(-3px);border-color:var(--line-pri);background:var(--bg-3);}
.tl-order{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--amber);letter-spacing:.02em;}
.tl-card img{width:108px;aspect-ratio:16/9;object-fit:cover;border-radius:10px;border:1px solid var(--line);}
.tl-body h3{font-size:18px;margin-bottom:6px;}
.tl-body p{font-size:14px;color:var(--t2);line-height:1.75;max-width:640px;}
.tl-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;text-align:right;}
.tl-time{font-family:var(--font-num);font-size:12px;color:var(--t3);letter-spacing:.06em;white-space:nowrap;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:11px;letter-spacing:.12em;
  color:var(--amber);border:1px solid rgba(240,162,75,.42);
  background:rgba(240,162,75,.06);white-space:nowrap;
}
.tag.is-primary{color:var(--primary);border-color:var(--line-pri);background:rgba(35,196,184,.08);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  padding:26px 24px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line);
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.step:hover{border-color:var(--line-pri);transform:translateY(-4px);}
.step .num{font-family:var(--font-num);font-size:13px;letter-spacing:.14em;color:var(--primary);}
.step h3{font-size:17px;margin:14px 0 10px;}
.step p{font-size:14px;color:var(--t2);line-height:1.8;}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.split-figure{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.split-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(10,13,18,.62),rgba(10,13,18,0) 62%);
}
.aud-list li{
  display:flex;gap:18px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.aud-list li:first-child{padding-top:0;}
.aud-list li:last-child{border-bottom:none;padding-bottom:0;}
.aud-list .idx{font-family:var(--font-num);font-size:13px;color:var(--amber);letter-spacing:.1em;padding-top:5px;}
.aud-list h3{font-size:17px;margin-bottom:8px;}
.aud-list p{font-size:14px;color:var(--t2);line-height:1.8;}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:20px 4px;
  font-size:16px;font-weight:600;cursor:pointer;list-style:none;
  transition:color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex-shrink:0;
  font-family:var(--font-num);font-size:20px;font-weight:600;color:var(--primary);
  transition:transform .25s var(--ease);
}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{color:var(--primary-l);}
.faq-item .faq-answer{
  padding:0 4px 24px;
  font-size:15px;color:var(--t2);line-height:1.85;max-width:680px;
}
.faq-note{
  padding:24px;border-radius:var(--r-card);
  border:1px dashed rgba(255,255,255,.12);
  background:var(--bg-1);
}
.faq-note h3{font-size:16px;margin-bottom:10px;}
.faq-note p{font-size:14px;color:var(--t2);line-height:1.8;margin-bottom:18px;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:88px 0;
  background:linear-gradient(180deg,var(--bg-1),var(--bg-0));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.08;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  pointer-events:none;
}
.cta-band .container{position:relative;z-index:1;}
.cta-inner{max-width:760px;}
.cta-inner .h2{margin-bottom:18px;}
.cta-inner p{color:var(--t2);font-size:16px;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.cta-foot{margin-top:20px;font-size:12px;color:var(--t3);letter-spacing:.04em;}

/* ---------- skeleton & empty ---------- */
.skeleton{
  background:var(--bg-2);border-radius:12px;position:relative;overflow:hidden;
}
.skeleton::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);
  animation:shimmer 1.6s infinite;
}
@keyframes shimmer{0%{transform:translateX(-100%);}100%{transform:translateX(100%);}}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:220px;padding:36px;text-align:center;
  border:1px dashed rgba(255,255,255,.12);border-radius:var(--r-card);
  color:var(--t3);font-size:14px;
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;overflow:hidden;
  padding:80px 0 32px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
}
.footer-pattern{
  position:absolute;top:0;right:0;width:420px;height:220px;pointer-events:none;
  background-image:radial-gradient(rgba(35,196,184,.9) 1px,transparent 1px);
  background-size:22px 22px;opacity:.05;
}
.footer-main{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--t2);line-height:1.8;max-width:320px;}
.footer-col h4{font-size:14px;letter-spacing:.12em;color:var(--t1);margin-bottom:20px;}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{font-size:14px;color:var(--t2);transition:color .2s var(--ease);}
.footer-col ul a:hover{color:var(--primary);}
.footer-sub p{font-size:14px;color:var(--t2);line-height:1.8;margin-bottom:18px;}
.sub-form{display:flex;gap:10px;}
.sub-form input{
  flex:1;min-width:0;
  padding:12px 16px;border-radius:var(--r-input);
  background:var(--bg-1);
  border:1px solid var(--line);
  color:var(--t1);font-size:14px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.sub-form input::placeholder{color:var(--t3);}
.sub-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(35,196,184,.15);}
.footer-bottom{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding-top:28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:20px;}
.fb-links a{color:var(--t3);transition:color .2s var(--ease);}
.fb-links a:hover{color:var(--primary);}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 32px;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    padding:20px 24px 120px;overflow-y:auto;
    background:var(--bg-0);
    border-top:1px solid var(--line);
    transform:translateX(100%);
    transition:transform .3s var(--ease);
    z-index:90;
  }
  body.nav-open .main-nav{transform:translateX(0);}
  .main-nav > ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav > ul > li{border-bottom:1px solid var(--line);}
  .main-nav > ul > li > a{display:block;padding:18px 2px;font-size:16px;}
  .main-nav > ul > li > a::after{display:none;}
  .has-mega .mega-panel{display:none;}
  .nav-right .btn{display:none;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;gap:36px;}
  .faq-grid{grid-template-columns:1fr;gap:36px;}
  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
  .section{padding:80px 0;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .cat-hero{padding:44px 0 56px;}
  .hero-rule{margin:28px 0 20px;}
  .grid-2{grid-template-columns:1fr;}
  .timeline{padding-left:28px;}
  .timeline::before{left:8px;}
  .tl-item::before{left:-24px;top:26px;}
  .tl-card{grid-template-columns:1fr;gap:14px;padding:20px;}
  .tl-card img{width:100%;max-width:220px;}
  .tl-order{font-size:20px;}
  .tl-side{flex-direction:row;align-items:center;justify-content:space-between;text-align:left;width:100%;}
  .feat-card{padding:24px;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:64px 0;}
  .footer-main{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding:56px 0 28px;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
}
@media (max-width:520px){
  .logo-text{font-size:15px;}
  .hero-title{font-size:clamp(30px,9vw,40px);}
  .hero-meta{gap:8px;}
  .chip{font-size:11px;padding:6px 11px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .faq-item summary{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --b0:#0A0D12; --b1:#111720; --b2:#18202B; --b3:#222C39;
  --pri:#23C4B8; --pri-d:#12A196; --pri-l:#6FE3D9;
  --acc:#F0A24B; --acc-d:#C97F2E;
  --red:#E5484D; --ok:#3DD68C;
  --line:rgba(255,255,255,.08); --line-2:rgba(255,255,255,.14);
  --t1:#F2F5F8; --t2:#9AA6B4; --t3:#5F6B7A;
  --r-card:14px; --r-poster:18px; --r-img:16px; --r-in:10px;
  --sh1:0 12px 32px rgba(0,0,0,.45);
  --sh2:0 24px 60px rgba(0,0,0,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --cont:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--b0);color:var(--t1);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.12;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--pri);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--cont);margin:0 auto;padding:0 40px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.skip-link{position:absolute;left:-9999px;top:8px;background:var(--pri);color:#06110F;padding:10px 18px;border-radius:999px;z-index:200;}
.skip-link:focus{left:16px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;transition:all .22s var(--ease);white-space:nowrap;}
.btn-primary{background:var(--pri);color:#06110F;box-shadow:0 10px 26px rgba(35,196,184,.24);}
.btn-primary:hover{background:var(--pri-l);transform:translateY(-2px);box-shadow:0 16px 34px rgba(35,196,184,.3);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(35,196,184,.22);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.2);color:var(--t1);}
.btn-ghost:hover{background:rgba(35,196,184,.12);border-color:rgba(35,196,184,.5);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;pointer-events:none;}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--pri);font-size:14px;font-weight:700;}
.link-more::after{content:"→";transition:transform .2s var(--ease);}
.link-more:hover::after{transform:translateX(4px);}
.link-more:hover{text-decoration:underline;text-underline-offset:4px;}

.tag{display:inline-flex;align-items:center;padding:3px 12px;border-radius:999px;
  border:1px solid rgba(240,162,75,.5);color:var(--acc);font-size:11.5px;letter-spacing:.12em;font-weight:600;background:rgba(240,162,75,.08);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;
  border:1px solid rgba(35,196,184,.45);color:var(--pri);background:rgba(35,196,184,.08);
  font-size:12.5px;font-weight:700;letter-spacing:.16em;}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background-color .3s var(--ease),box-shadow .3s var(--ease),backdrop-filter .3s var(--ease);}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:transparent;transition:background-color .3s var(--ease);}
.site-header.is-scrolled{background:rgba(17,23,32,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.site-header.is-scrolled::after{background:var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:rgba(35,196,184,.1);border:1px solid rgba(35,196,184,.32);}
.logo-text{font-size:16px;font-weight:800;letter-spacing:.02em;color:var(--t1);white-space:nowrap;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav li{position:relative;}
.main-nav a{display:inline-block;padding:10px 14px;font-size:14.5px;font-weight:600;color:var(--t2);border-radius:8px;position:relative;}
.main-nav > ul > li > a:hover{color:var(--t1);background:rgba(255,255,255,.05);}
.main-nav > ul > li > a.is-active{color:var(--pri);}
.main-nav > ul > li > a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--pri);border-radius:2px;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line-2);background:transparent;color:var(--t2);cursor:pointer;transition:all .2s var(--ease);}
.icon-btn:hover{color:var(--pri);border-color:rgba(35,196,184,.5);background:rgba(35,196,184,.08);}
.nav-cta{padding:10px 20px;font-size:14px;}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line-2);background:transparent;color:var(--t1);cursor:pointer;align-items:center;justify-content:center;}

.mega-panel{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(8px);
  width:min(1120px,92vw);background:var(--b3);border:1px solid rgba(255,255,255,.12);border-radius:14px;
  padding:26px 28px;display:grid;grid-template-columns:1.05fr 1.35fr 1fr;gap:28px;
  box-shadow:var(--sh2);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease);z-index:80;}
.has-mega:hover .mega-panel,.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0);}
.mega-col-title{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--pri);margin-bottom:14px;}
.mega-list li + li{margin-top:4px;}
.mega-list a{display:flex;align-items:baseline;gap:10px;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--t2);}
.mega-list a:hover{background:rgba(255,255,255,.05);color:var(--t1);}
.mega-list .num{font-family:"Inter","DIN Alternate",ui-monospace,monospace;font-size:13px;font-weight:700;color:var(--acc);font-variant-numeric:tabular-nums;}
.mega-list a.is-active{color:var(--pri);}
.mega-mini a{display:flex;gap:12px;padding:8px;border-radius:10px;}
.mega-mini a:hover{background:rgba(255,255,255,.05);}
.mega-mini img{width:72px;height:48px;object-fit:cover;border-radius:8px;flex-shrink:0;}
.mega-mini .mt{display:block;font-size:13.5px;font-weight:600;color:var(--t1);line-height:1.5;}
.mega-mini .md{display:block;font-size:12px;color:var(--t3);margin-top:2px;}
.mega-cta{background:rgba(35,196,184,.08);border:1px solid rgba(35,196,184,.35);border-radius:12px;padding:20px;display:flex;flex-direction:column;justify-content:space-between;gap:16px;}
.mega-cta p{font-size:14px;color:var(--t2);line-height:1.7;}
.mega-cta strong{display:block;color:var(--t1);font-size:15px;margin-bottom:6px;}

/* ---------- 面包屑 / Hero ---------- */
.cat-hero{position:relative;overflow:hidden;padding-top:70px;}
.cat-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.4;transform:scale(1.02);}
.cat-hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(10,13,18,.96) 0%,rgba(10,13,18,.66) 52%,rgba(10,13,18,.3) 100%),
             linear-gradient(to bottom,rgba(10,13,18,.3) 0%,rgba(10,13,18,.6) 62%,var(--b0) 100%);}
.cat-hero-inner{position:relative;z-index:2;padding-top:38px;padding-bottom:60px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:26px;}
.breadcrumb a{color:var(--t2);}
.breadcrumb a:hover{color:var(--pri);}
.breadcrumb .cur{color:var(--pri);}
.cat-hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.16;max-width:900px;margin:20px 0 18px;}
.hero-sub{font-size:17px;color:var(--t2);max-width:640px;line-height:1.8;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:46px;max-width:720px;}
.hero-stats li{border-left:2px solid rgba(35,196,184,.4);padding-left:16px;}
.hero-stats strong{display:block;font-family:"Inter","DIN Alternate",ui-monospace,monospace;font-size:30px;font-weight:800;color:var(--pri);line-height:1.1;font-variant-numeric:tabular-nums;}
.hero-stats span{display:block;font-size:13px;color:var(--t3);margin-top:6px;}
.hero-stats em{font-style:normal;font-size:16px;color:var(--acc);}

/* ---------- 主体三栏 ---------- */
.cat-layout{display:grid;grid-template-columns:repeat(12,1fr);gap:36px;padding-top:72px;padding-bottom:88px;align-items:start;}
.side-panel{grid-column:span 3;position:sticky;top:96px;}
.side-rec{grid-column:span 3;position:sticky;top:96px;}
.cat-main{grid-column:span 6;}
.side-title{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--pri);text-transform:none;margin-bottom:14px;}
.side-panel .side-title + .anchor-list{margin-bottom:34px;}
.anchor-list li + li{margin-top:2px;}
.anchor-list a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:10px;font-size:14.5px;color:var(--t2);border-left:2px solid transparent;}
.anchor-list a:hover{background:var(--b2);color:var(--t1);}
.anchor-list a.is-active{color:var(--pri);border-left-color:var(--pri);background:rgba(35,196,184,.08);}
.anchor-list .idx{font-family:"Inter","DIN Alternate",ui-monospace,monospace;font-size:12px;color:var(--acc);font-weight:700;font-variant-numeric:tabular-nums;}

.sec-head{margin-bottom:26px;}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);}
.sec-head p{font-size:14.5px;color:var(--t2);margin-top:10px;}

.cat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.card{background:var(--b1);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);}
.card:hover{transform:translateY(-6px);border-color:rgba(35,196,184,.4);box-shadow:var(--sh2);}
.card-media{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:var(--b2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease),opacity .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .tag{position:absolute;left:12px;top:12px;background:rgba(10,13,18,.78);}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17.5px;line-height:1.45;font-weight:700;}
.card-body h3 a{color:var(--t1);}
.card-body h3 a:hover{color:var(--pri);}
.card-body p{font-size:14px;color:var(--t2);line-height:1.75;flex:1;}
.card-meta{font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums;}

.mini-list li + li{margin-top:10px;}
.mini-card a{display:flex;gap:12px;padding:10px;border-radius:12px;border:1px solid transparent;transition:all .22s var(--ease);}
.mini-card a:hover{background:var(--b2);border-color:var(--line);}
.mini-card img{width:76px;height:56px;object-fit:cover;border-radius:10px;flex-shrink:0;}
.mini-card .mt{display:block;font-size:14px;font-weight:600;line-height:1.5;color:var(--t1);}
.mini-card a:hover .mt{color:var(--pri);}
.mini-card .md{display:block;font-size:12px;color:var(--t3);margin-top:4px;}
.side-note{margin-top:24px;padding:18px;border-radius:12px;background:var(--b2);border:1px solid var(--line);font-size:13.5px;color:var(--t2);line-height:1.8;}
.side-note strong{color:var(--t1);display:block;margin-bottom:6px;font-size:14px;}

/* ---------- FAQ ---------- */
.faq-section{border-top:1px solid var(--line);background:var(--b1);padding:88px 0;}
.faq-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:36px;}
.faq-intro{grid-column:span 4;}
.faq-intro h2{font-size:clamp(24px,2.8vw,34px);line-height:1.2;}
.faq-intro p{font-size:14.5px;color:var(--t2);margin-top:16px;max-width:320px;}
.faq-list{grid-column:span 8;}
.faq-list details{border-bottom:1px solid var(--line);}
.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:56px;padding:14px 0;
  cursor:pointer;font-size:16px;font-weight:700;color:var(--t1);list-style:none;transition:color .2s var(--ease);}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::after{content:"+";color:var(--pri);font-size:20px;font-weight:600;line-height:1;transition:transform .24s var(--ease);}
.faq-list details[open] summary{color:var(--pri);}
.faq-list details[open] summary::after{content:"−";}
.faq-list summary:hover{color:var(--pri);}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--t2);max-width:680px;}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--b1) 0%,var(--b0) 100%);padding:88px 0 96px;}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.08;}
.cta-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);background-size:22px 22px;opacity:.05;}
.cta-inner{position:relative;z-index:2;max-width:760px;}
.cta-inner h2{font-size:clamp(24px,3vw,36px);}
.cta-inner > p{font-size:16px;color:var(--t2);margin-top:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.cta-note{font-size:12.5px;color:var(--t3);margin-top:18px;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--b0);border-top:1px solid var(--line);padding:72px 0 0;overflow:hidden;}
.footer-pattern{position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);background-size:24px 24px;opacity:.05;pointer-events:none;}
.site-footer .container{position:relative;z-index:2;}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:56px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--t2);line-height:1.85;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--t1);margin-bottom:18px;letter-spacing:.06em;}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{font-size:14px;color:var(--t2);}
.footer-col ul a:hover{color:var(--pri);}
.footer-sub p{font-size:14px;color:var(--t2);line-height:1.8;margin-bottom:16px;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{flex:1;min-width:170px;padding:11px 14px;border-radius:var(--r-in);border:1px solid var(--line-2);
  background:var(--b1);color:var(--t1);font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.sub-form input::placeholder{color:var(--t3);}
.sub-form input:focus{outline:none;border-color:var(--pri);box-shadow:0 0 0 3px rgba(35,196,184,.16);}
.sub-form .btn{padding:11px 20px;font-size:14px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding:22px 0 30px;font-size:13px;color:var(--t3);}
.fb-links{display:flex;flex-wrap:wrap;gap:20px;}
.fb-links a{font-size:13px;color:var(--t3);}
.fb-links a:hover{color:var(--pri);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{padding:0 32px;}
  .cat-layout{gap:28px;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{position:fixed;top:70px;left:0;right:0;bottom:0;background:var(--b0);border-top:1px solid var(--line);
    padding:20px 24px 40px;overflow-y:auto;display:none;}
  .site-header.nav-open .main-nav{display:block;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:2px;}
  .main-nav a{padding:13px 12px;font-size:15.5px;}
  .main-nav > ul > li > a.is-active::after{display:none;}
  .mega-panel{position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    width:auto;background:transparent;border:0;box-shadow:none;padding:4px 0 10px;display:block;}
  .mega-panel > div:nth-child(3),.mega-mini{display:none;}
  .mega-panel > div + div{margin-top:12px;}
  .cat-hero{padding-top:70px;}
  .cat-layout{grid-template-columns:1fr;gap:34px;padding-top:56px;padding-bottom:64px;}
  .side-panel,.side-rec,.cat-main{grid-column:span 12;position:static;}
  .side-panel{border-bottom:1px solid var(--line);padding-bottom:20px;}
  .anchor-list{display:flex;flex-wrap:wrap;gap:8px;}
  .anchor-list li + li{margin-top:0;}
  .anchor-list a{border:1px solid var(--line);border-radius:999px;padding:8px 16px;}
  .anchor-list a.is-active{border-color:var(--pri);background:var(--pri);color:#06110F;}
  .anchor-list a.is-active .idx{color:#06110F;}
  .faq-section{padding:64px 0;}
  .faq-intro,.faq-list{grid-column:span 12;}
  .faq-intro p{max-width:none;}
  .footer-main{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:64px 0 72px;}
}
@media (max-width:768px){
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .cat-grid{grid-template-columns:1fr;}
  .footer-main{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cat-hero-inner{padding-bottom:44px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .logo-text{font-size:15px;}
  .nav-cta{padding:9px 16px;font-size:13px;}
  .hero-actions .btn{flex:1;justify-content:center;}
  .hero-stats{grid-template-columns:1fr;gap:14px;}
  .hero-stats strong{font-size:26px;}
  .cat-hero h1{font-size:clamp(26px,7.6vw,34px);}
  .faq-list summary{font-size:15px;}
  .card-body h3{font-size:16.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
  .card:hover{transform:none;}
}