/* roulang page: index */
:root{
  --bg:#0A0C14;
  --bg-2:#0E1120;
  --bg-3:#141830;
  --panel:#12162A;
  --line:rgba(255,255,255,.08);
  --primary:#2BF0B0;
  --primary-dim:rgba(43,240,176,.12);
  --magenta:#FF3D81;
  --amber:#FFB427;
  --t1:#F2F5FF;
  --t2:#C9D2E8;
  --t3:#8C97B4;
  --t4:#6C7691;
  --r-card:14px;
  --r-btn:999px;
  --glow:0 0 0 1px rgba(43,240,176,.45),0 0 20px rgba(43,240,176,.22);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Barlow","DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--t2);
  font-family:var(--font);font-size:16.5px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.026) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.026) 1px,transparent 1px);
  background-size:66px 66px;
}
h1,h2,h3,h4{color:var(--t1);font-weight:700;margin:0;line-height:1.35;}
p{margin:0;}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
ul{margin:0;padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(43,240,176,.32);color:#06110D;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;position:relative;z-index:1;}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:740px;margin-bottom:40px;}
.sec-head h2{font-size:27px;}
.sec-head .sec-desc{margin-top:12px;color:var(--t3);font-size:15.5px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;line-height:1;
  color:var(--primary);background:var(--primary-dim);
  border:1px solid rgba(43,240,176,.28);border-radius:6px;padding:6px 11px;
}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);border:0;cursor:pointer;
  background:var(--primary);color:#06110D;font-weight:700;font-size:15px;
  transition:transform .22s ease,filter .22s ease,box-shadow .22s ease;
}
.btn-main:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--glow);color:#06110D;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:10px;
  border:1px solid rgba(43,240,176,.5);background:transparent;color:var(--primary);
  font-weight:600;font-size:15px;
  transition:transform .22s ease,background .22s ease;
}
.btn-ghost:hover{background:rgba(43,240,176,.08);transform:translateY(-1px);color:var(--primary);}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;transition:gap .2s ease;}
.link-more:hover{gap:10px;text-decoration:underline;text-underline-offset:3px;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,12,20,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,240,176,.72),transparent);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px;}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(43,240,176,.95),rgba(43,240,176,.28));
  color:#06110D;font-family:var(--font-num);font-weight:800;font-size:15px;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{color:var(--t1);font-size:16px;letter-spacing:.6px;}
.brand-text em{font-style:normal;color:var(--t4);font-size:11px;letter-spacing:1.5px;}
.nav-collapse{display:flex;align-items:center;gap:26px;flex:1;justify-content:flex-end;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-item{
  display:inline-block;padding:9px 12px;font-size:15px;color:var(--t3);
  border-radius:8px;position:relative;transition:color .2s ease,background .2s ease;
}
.nav-item:hover{color:var(--t1);background:rgba(255,255,255,.045);}
.nav-item.active{color:var(--primary);}
.nav-item.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(43,240,176,.7);
}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:40px;border-radius:10px;cursor:pointer;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--t1);}
.nav-cta{height:40px;padding:0 20px;font-size:14px;}

/* Hero */
.hero{
  position:relative;z-index:1;padding:76px 0 84px;
  background:
    linear-gradient(180deg,rgba(10,12,20,.84),rgba(10,12,20,.97)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;margin:18px 0 18px;}
.hero h1 span{color:var(--primary);}
.hero-sub{color:var(--t2);font-size:16.5px;max-width:570px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 30px;}
.hero-points li{
  font-size:13px;color:var(--t3);line-height:1.4;
  border:1px solid var(--line);border-radius:6px;padding:6px 11px;
  background:rgba(255,255,255,.03);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{
  position:relative;border-radius:18px;overflow:hidden;
  border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.55);
}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(10,12,20,.12),rgba(10,12,20,.78));
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(10,12,20,.8);border:1px solid rgba(43,240,176,.35);
  border-radius:10px;padding:10px 14px;font-size:13px;color:var(--t2);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.hero-badge strong{color:var(--primary);font-family:var(--font-num);font-size:16px;margin-right:4px;}

/* 能力点条 */
.strip{background:var(--bg-2);border-bottom:1px solid var(--line);position:relative;z-index:1;}
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.strip-item{display:flex;align-items:center;gap:12px;padding:24px 18px;border-left:1px solid var(--line);}
.strip-item:first-child{border-left:0;}
.strip-ico{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:grid;place-items:center;background:var(--primary-dim);color:var(--primary);font-size:15px;
}
.strip-item b{display:block;color:var(--t1);font-size:15px;font-weight:600;line-height:1.5;}
.strip-item i{font-style:normal;color:var(--t4);font-size:12.5px;}

/* 故事区 */
.story-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.story-row + .story-row{margin-top:64px;}
.story-media{border-radius:16px;overflow:hidden;border:1px solid var(--line);}
.story-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.story-copy h3{font-size:22px;margin-bottom:16px;}
.story-copy p{color:var(--t2);font-size:16px;margin-bottom:14px;}
.story-row.reverse .story-media{order:2;}
.story-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}

/* 精选卡 */
.pick-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:22px;}
.pick-side{display:grid;gap:22px;}
.card-x{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.card-x:hover{transform:translateY(-2px);border-color:rgba(43,240,176,.5);box-shadow:var(--glow);}
.card-thumb{position:relative;overflow:hidden;}
.card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.card-x:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:18px 20px 22px;}
.card-body h3{font-size:19px;line-height:1.45;margin:10px 0 10px;}
.card-body p{color:var(--t3);font-size:15px;}
.pick-main .card-thumb img{aspect-ratio:16/9;}
.pick-main .card-body{padding:22px 24px 26px;}
.pick-main .card-body h3{font-size:23px;}

.badge-x{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:6px;
  font-size:12.5px;line-height:1;background:var(--primary-dim);color:var(--primary);
  border:1px solid rgba(43,240,176,.25);white-space:nowrap;
}
.badge-mag{background:rgba(255,61,129,.12);color:var(--magenta);border-color:rgba(255,61,129,.3);}
.badge-amber{background:rgba(255,180,39,.12);color:var(--amber);border-color:rgba(255,180,39,.3);}

/* 最新信息 */
.latest-list{display:grid;gap:20px;}
.latest-item{
  display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:center;
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.latest-item:hover{transform:translateY(-2px);border-color:rgba(43,240,176,.45);box-shadow:var(--glow);}
.latest-thumb{display:block;overflow:hidden;}
.latest-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.latest-item:hover .latest-thumb img{transform:scale(1.04);}
.latest-body{padding:20px 24px 20px 0;}
.latest-title{font-size:19px;line-height:1.45;margin:12px 0 8px;}
.latest-title a:hover{color:var(--primary);}
.latest-sum{
  color:var(--t3);font-size:15px;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--t4);}
.time-x{font-family:var(--font-num);color:var(--t4);letter-spacing:.3px;}
.empty-x{
  text-align:center;padding:56px 24px;border-radius:var(--r-card);
  background:var(--bg-3);border:1px dashed var(--line);color:var(--t3);
}
.empty-x .empty-icon{
  display:block;font-size:26px;color:var(--primary);margin-bottom:10px;line-height:1;
}

/* 信任背书 */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.trust-cell{
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;transition:border-color .22s ease,transform .22s ease;
}
.trust-cell:hover{border-color:rgba(43,240,176,.42);transform:translateY(-2px);}
.trust-num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--primary);line-height:1;}
.trust-num small{font-size:14px;color:var(--t3);font-weight:500;margin-left:6px;}
.trust-cell p{margin-top:12px;color:var(--t3);font-size:14.5px;}

/* FAQ */
.faq-list{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 8px 20px 0;color:var(--t1);font-size:17px;font-weight:600;
  transition:color .2s ease,padding .2s ease,border-color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"⌄";flex:0 0 auto;font-size:20px;line-height:1;color:var(--primary);
  transition:transform .25s ease;
}
.faq-item[open] summary{color:var(--primary);padding-left:14px;border-left:3px solid var(--primary);}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-item[open]{background:rgba(255,255,255,.02);}
.faq-item p{padding:0 8px 22px 14px;color:var(--t3);font-size:15.5px;}

/* CTA */
.cta-band{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
  background:linear-gradient(120deg,#0F1424,#141A2E);
  border:1px solid var(--line);border-radius:18px;padding:40px;
}
.cta-band h2{font-size:25px;margin-bottom:10px;}
.cta-band p{color:var(--t3);font-size:15px;}
.form-row{display:flex;gap:12px;}
.input-x{
  flex:1;height:48px;padding:0 16px;border-radius:10px;font-size:15px;
  background:#0B0F1C;border:1px solid var(--line);color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.input-x::placeholder{color:var(--t4);}
.input-x:focus{outline:none;border-color:var(--primary);box-shadow:var(--glow);}
.form-tip{margin-top:10px;font-size:13px;color:var(--t4);}
.form-tip.ok{color:var(--primary);}

/* 页脚 */
.site-footer{
  position:relative;z-index:1;background:var(--bg-2);
  border-top:1px solid var(--line);padding-top:64px;
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{color:var(--t4);font-size:13.5px;max-width:330px;}
.foot-col h4{font-size:14.5px;color:var(--t1);margin-bottom:16px;}
.foot-col li{margin-bottom:10px;}
.foot-col a{color:var(--t4);font-size:13.5px;}
.foot-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.foot-bottom{
  border-top:1px solid rgba(43,240,176,.35);
  box-shadow:0 -1px 14px rgba(43,240,176,.12);
  padding:18px 0 26px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  color:var(--t4);font-size:13px;
}
.foot-bottom a{color:var(--t4);}
.foot-bottom a:hover{color:var(--primary);}

@media (min-width:992px){
  .nav-collapse{display:flex !important;}
}
@media (max-width:1199px){
  .hero-grid{gap:38px;}
  .latest-item{grid-template-columns:240px 1fr;}
  .nav-collapse{gap:18px;}
  .nav-item{padding:9px 9px;font-size:14.5px;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .nav-toggle{display:flex;}
  .nav-collapse{display:none;}
  .nav-collapse.show{
    display:flex !important;flex-direction:column;align-items:stretch;gap:10px;
    position:absolute;left:0;right:0;top:100%;
    background:#0B0E18;border-bottom:1px solid var(--line);
    padding:16px 24px 22px;box-shadow:0 20px 44px rgba(0,0,0,.55);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-item{padding:13px 10px;border-bottom:1px solid var(--line);border-radius:0;font-size:15px;}
  .nav-item.active::after{display:none;}
  .nav-item.active{border-left:3px solid var(--primary);padding-left:14px;}
  .nav-cta{width:100%;margin-top:8px;height:44px;}
  .strip-grid{grid-template-columns:repeat(2,1fr);}
  .strip-item{border-top:1px solid var(--line);}
  .strip-item:nth-child(1),.strip-item:nth-child(2){border-top:0;}
  .strip-item:nth-child(3){border-left:0;}
  .story-row{grid-template-columns:1fr;gap:26px;}
  .story-row.reverse .story-media{order:0;}
  .pick-grid{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:30px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:52px 0;}
  .sec-head{margin-bottom:28px;}
  .sec-head h2{font-size:23px;}
  .hero h1{font-size:clamp(27px,7.4vw,34px);}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .latest-item{grid-template-columns:1fr;gap:0;}
  .latest-body{padding:18px 20px 22px;}
  .trust-grid{grid-template-columns:1fr;}
  .form-row{flex-direction:column;}
  .form-row .btn-main{width:100%;}
  .foot-grid{grid-template-columns:1fr;}
  .strip-grid{grid-template-columns:1fr;}
  .strip-item{border-left:0 !important;border-top:1px solid var(--line);}
  .strip-item:first-child{border-top:0;}
  .cta-band{padding:24px;}
  .card-body h3{font-size:18px;}
  .pick-main .card-body h3{font-size:20px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text strong{font-size:15px;}
  .brand-text em{font-size:10px;letter-spacing:1px;}
  .hero-points li{font-size:12.5px;}
  .faq-item summary{font-size:16px;}
}

/* roulang page: article */
:root{
  --bg:#0A0C14;
  --bg-soft:#0E1120;
  --panel:#141830;
  --panel-read:#12162A;
  --main:#2BF0B0;
  --magenta:#FF3D81;
  --amber:#FFB427;
  --t1:#F2F5FF;
  --t2:#C9D2E8;
  --t3:#8C97B4;
  --t4:#6C7691;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(43,240,176,.45);
  --glow:0 0 0 1px rgba(43,240,176,.45), 0 0 20px rgba(43,240,176,.22);
  --r-card:14px;
  --r-btn:999px;
  --r-btn2:10px;
  --r-input:10px;
  --r-badge:6px;
  --gap-block:92px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.9;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.55;
}
img{max-width:100%;display:block}
a{color:var(--main);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:#6df7c6;text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4,h5{color:var(--t1);margin:0;font-weight:700;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--main);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;position:relative;z-index:1}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,12,20,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,240,176,.7),transparent);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:68px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(43,240,176,.95),rgba(43,240,176,.35));
  color:#06131A;font-weight:800;font-size:18px;
  box-shadow:0 0 0 1px rgba(43,240,176,.4),0 0 18px rgba(43,240,176,.22);
}
.brand-text strong{display:block;color:var(--t1);font-size:16px;line-height:1.15;letter-spacing:.5px}
.brand-text em{display:block;font-style:normal;font-size:11px;color:var(--t3);letter-spacing:3px;margin-top:2px}
.nav-list{list-style:none;display:flex;align-items:center;gap:6px;margin:0;padding:0}
.nav-item{
  display:block;position:relative;padding:9px 13px;font-size:15px;color:var(--t2);
  border-radius:8px;text-decoration:none;white-space:nowrap;transition:all .2s ease;
}
.nav-item:hover{color:var(--t1);background:rgba(255,255,255,.045);text-decoration:none}
.nav-item.active{color:var(--main)}
.nav-item.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--main);box-shadow:0 0 10px rgba(43,240,176,.85);
}
.nav-toggle{
  display:none;width:44px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:rgba(255,255,255,.03);padding:9px 10px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--t2);margin:4px 0}
.nav-toggle span:first-child{margin-top:0}
.nav-toggle span:last-child{margin-bottom:0}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--main);color:#062018;border:1px solid var(--main);
  border-radius:var(--r-btn);padding:12px 26px;font-size:15px;font-weight:600;
  cursor:pointer;text-decoration:none;transition:all .2s ease;
}
.btn-main:hover{filter:brightness(1.08);transform:translateY(-1px);color:#062018;text-decoration:none;box-shadow:0 0 22px rgba(43,240,176,.3)}
.btn-main:active{transform:translateY(0)}
.nav-cta{padding:10px 22px;font-size:14.5px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--main);border:1px solid var(--line-strong);
  border-radius:var(--r-btn2);padding:12px 24px;font-size:15px;font-weight:600;
  text-decoration:none;transition:all .2s ease;
}
.btn-ghost:hover{background:rgba(43,240,176,.1);transform:translateY(-1px);text-decoration:none;color:var(--main)}
.btn-text{display:inline-flex;align-items:center;gap:8px;color:var(--main);font-weight:600;font-size:15px}
.btn-text:hover{text-decoration:none;gap:12px}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;
  padding:66px 0 54px;
  background-image:linear-gradient(180deg,rgba(10,12,20,.86),rgba(10,12,20,.95)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.banner-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1px;
  color:var(--main);background:rgba(43,240,176,.12);border:1px solid rgba(43,240,176,.28);
  border-radius:var(--r-badge);padding:5px 12px;margin-bottom:16px;
}
.banner-heading{font-size:clamp(24px,3vw,34px);line-height:1.3}
.banner-desc{margin-top:12px;max-width:720px;color:var(--t3);font-size:15.5px;line-height:1.85}

/* ---------- article ---------- */
.article-wrap{padding:58px 0 var(--gap-block)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t4);margin-bottom:26px}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--main)}
.crumb .sep{color:var(--t4)}
.crumb .current{color:var(--t3);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:880px}
.article-cat{
  display:inline-block;background:rgba(43,240,176,.12);color:var(--main);
  border-radius:var(--r-badge);padding:4px 12px;font-size:12.5px;letter-spacing:.5px;
}
.article-title{
  font-size:clamp(28px,4vw,44px);line-height:1.28;margin:18px 0 16px;letter-spacing:.2px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13.5px;color:var(--t4)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--t4);display:inline-block}
.article-divider{
  height:1px;margin:26px 0 34px;max-width:880px;
  background:linear-gradient(90deg,rgba(43,240,176,.85),rgba(43,240,176,.12),transparent);
}
.article-body{
  max-width:800px;background:var(--panel-read);border:1px solid var(--line);
  border-radius:var(--r-card);padding:40px 44px;font-size:17px;line-height:1.9;color:var(--t2);
}
.article-body p{margin:0 0 1em;text-indent:0}
.article-body h2{
  font-size:27px;line-height:1.35;margin:1.6em 0 .7em;padding-left:12px;
  border-left:3px solid var(--main);color:var(--t1);
}
.article-body h3{font-size:20px;line-height:1.4;margin:1.4em 0 .6em;color:#E6ECFF}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body ul,.article-body ol{margin:0 0 1em;padding-left:22px}
.article-body li{line-height:1.9;margin-bottom:.35em}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;border-left:3px solid var(--main);
  background:rgba(43,240,176,.06);border-radius:0 10px 10px 0;color:#DCE5FA;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.2em auto;max-width:100%;height:auto}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--t4);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:1.3em 0;font-size:15.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body thead th{background:rgba(43,240,176,.09);color:var(--t1);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.028)}
.article-body a{color:var(--main);text-decoration:underline;text-decoration-style:dashed;text-underline-offset:3px}
.article-body a:hover{color:#7bf8cd}
.article-body strong{color:var(--t1)}
.article-body code{background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;font-size:15px}
.empty-note{
  max-width:800px;background:var(--panel-read);border:1px solid var(--line);
  border-radius:var(--r-card);padding:52px 32px;text-align:center;
}
.empty-note i{font-size:30px;color:var(--main);display:block;margin-bottom:14px}
.empty-note h3{font-size:20px;margin-bottom:10px}
.empty-note p{color:var(--t3);font-size:15.5px;margin-bottom:22px}
.back-bar{margin-top:34px;max-width:800px}

/* ---------- sections ---------- */
.section{padding:var(--gap-block) 0}
.section-alt{background:var(--bg-soft);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:16px;margin-bottom:36px}
.sec-title{font-size:clamp(22px,2.6vw,29px);line-height:1.35}
.sec-title span{color:var(--main)}
.sec-desc{margin-top:10px;color:var(--t3);font-size:15px;max-width:640px}

.news-list{display:flex;flex-direction:column;gap:20px}
.news-card{
  display:grid;grid-template-columns:240px 1fr;gap:22px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;text-decoration:none;transition:all .25s ease;
}
.news-card:hover{
  transform:translateY(-2px);border-color:var(--line-strong);text-decoration:none;
  box-shadow:0 0 0 1px rgba(43,240,176,.45),0 0 22px rgba(43,240,176,.18);
}
.news-thumb{aspect-ratio:16/10;border-radius:10px;overflow:hidden;background:#0E1120}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body h3{font-size:19px;line-height:1.45;color:var(--t1);margin-bottom:9px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:15px;color:var(--t3);line-height:1.75;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--t4)}
.badge-cat{
  display:inline-block;background:rgba(43,240,176,.12);color:var(--main);
  border-radius:var(--r-badge);padding:3px 10px;font-size:12.5px;
}
.badge-alt{background:rgba(255,61,129,.12);color:#FF7FA9}
.badge-time{background:rgba(255,180,39,.12);color:var(--amber)}
.news-foot .more{color:var(--main);font-weight:600;margin-left:auto}

/* ---------- CTA ---------- */
.cta-strip{
  background:linear-gradient(135deg,rgba(20,24,48,.95),rgba(14,17,32,.98));
  border:1px solid var(--line);border-radius:18px;padding:40px 42px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;
}
.cta-strip::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,240,176,.22),transparent 68%);
}
.cta-left{max-width:520px;position:relative;z-index:1}
.cta-left h2{font-size:clamp(21px,2.3vw,26px);line-height:1.4;margin-bottom:10px}
.cta-left p{color:var(--t3);font-size:15px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.form-input{
  width:290px;max-width:100%;background:#0B0E1A;border:1px solid var(--line);color:var(--t1);
  border-radius:var(--r-input);padding:12px 16px;font-size:15px;transition:all .2s ease;
}
.form-input::placeholder{color:var(--t4)}
.form-input:focus{outline:none;border-color:var(--main);box-shadow:0 0 0 1px rgba(43,240,176,.45),0 0 18px rgba(43,240,176,.2)}
.form-tip{width:100%;font-size:13.5px;color:var(--t4);margin-top:2px}
.form-tip.is-error{color:var(--magenta)}

/* ---------- footer ---------- */
.site-footer{background:#080A11;border-top:1px solid var(--line);padding:64px 0 30px;position:relative;margin-top:20px}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,240,176,.8),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.foot-brand p{margin-top:18px;font-size:14px;color:var(--t4);line-height:1.85;max-width:340px}
.foot-col h4{font-size:15px;color:var(--t1);margin-bottom:16px}
.foot-col ul{list-style:none}
.foot-col li{margin-bottom:11px}
.foot-col a{font-size:13.5px;color:var(--t3)}
.foot-col a:hover{color:var(--main);text-decoration:none}
.foot-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t4);
}

/* ---------- responsive ---------- */
@media (min-width:992px){
  .nav-toggle{display:none}
  .nav-collapse.collapse{display:flex !important;align-items:center;justify-content:flex-end;gap:20px;flex:1}
  .nav-collapse.collapse .nav-list{flex:1;justify-content:flex-end}
}
@media (max-width:1199.98px){
  :root{--gap-block:80px}
  .article-body{padding:34px 34px}
}
@media (max-width:991.98px){
  :root{--gap-block:64px}
  .nav-toggle{display:block}
  .nav-collapse{
    position:absolute;top:100%;left:0;right:0;
    background:rgba(10,12,20,.98);backdrop-filter:blur(12px);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    padding:14px 22px 22px;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{padding:13px 6px;border-bottom:1px solid rgba(255,255,255,.06);border-radius:0}
  .nav-item.active::after{left:6px;right:auto;width:22px;bottom:6px}
  .nav-cta{width:100%;margin-top:16px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .news-card{grid-template-columns:200px 1fr;gap:18px}
  .article-title{font-size:clamp(25px,4.6vw,34px)}
}
@media (max-width:767.98px){
  :root{--gap-block:56px}
  body{font-size:16.5px}
  .page-banner{padding:48px 0 40px}
  .article-wrap{padding:40px 0 var(--gap-block)}
  .article-body{padding:26px 20px;font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18.5px}
  .news-card{grid-template-columns:1fr;gap:14px;padding:14px}
  .news-foot .more{margin-left:0}
  .cta-strip{padding:30px 22px;border-radius:16px}
  .cta-form{width:100%}
  .form-input{width:100%}
  .cta-form .btn-main{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column}
  .crumb .current{white-space:normal;max-width:100%}
}
@media (max-width:519.98px){
  .container{padding-left:18px;padding-right:18px}
  .brand-text strong{font-size:15px}
  .brand-text em{letter-spacing:2px}
  .article-body{padding:22px 16px;border-radius:12px}
}

/* roulang page: category1 */
:root{
  --bg:#0A0C14;
  --bg-block:#0E1120;
  --panel:#141830;
  --panel-soft:#12162A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --main:#2BF0B0;
  --main-deep:#16B986;
  --magenta:#FF3D81;
  --amber:#FFB427;
  --t1:#F2F5FF;
  --t2:#C9D2E8;
  --t3:#8C97B4;
  --t4:#6C7691;
  --r-card:14px;
  --r-btn:999px;
  --r-input:10px;
  --r-badge:6px;
  --glow:0 0 0 1px rgba(43,240,176,.45),0 0 20px rgba(43,240,176,.22);
  --shadow-soft:0 18px 40px rgba(0,0,0,.35);
  --gap-block:88px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--main)}
h1,h2,h3,h4{color:var(--t1);margin:0;font-weight:700;letter-spacing:.2px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.num{font-family:"Barlow","DIN Alternate",system-ui,sans-serif;font-variant-numeric:tabular-nums}
::selection{background:rgba(43,240,176,.28);color:#fff}
:focus-visible{outline:2px solid var(--main);outline-offset:3px;border-radius:6px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,12,20,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,240,176,.75),transparent);
  pointer-events:none;
}
.nav-bar{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(43,240,176,.22),rgba(43,240,176,.06));
  border:1px solid rgba(43,240,176,.45);
  color:var(--main);font-weight:800;font-size:18px;
  box-shadow:0 0 18px rgba(43,240,176,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{color:var(--t1);font-size:17px;letter-spacing:1px}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--t3);letter-spacing:3px}
.nav-toggle{
  margin-left:auto;width:44px;height:40px;border:1px solid var(--line);
  border-radius:10px;background:rgba(255,255,255,.03);
  display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t2);border-radius:2px}
.nav-collapse{display:flex;align-items:center;gap:24px;flex:1 1 auto;justify-content:space-between}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-item{
  position:relative;display:block;padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--t3);transition:color .2s ease,background .2s ease;
}
.nav-item:hover{color:var(--t1);background:rgba(255,255,255,.04)}
.nav-item.active{color:var(--main)}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
  background:var(--main);box-shadow:0 0 12px rgba(43,240,176,.85);
}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--main);color:#062019;font-weight:700;font-size:15px;
  border:none;border-radius:var(--r-btn);padding:11px 24px;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
  white-space:nowrap;
}
.btn-main:hover{filter:brightness(1.08);transform:translateY(-1px);color:#062019;box-shadow:0 0 0 1px rgba(43,240,176,.5),0 10px 26px rgba(43,240,176,.22)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--main);font-weight:600;font-size:15px;
  border:1px solid rgba(43,240,176,.5);border-radius:10px;padding:10px 22px;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-ghost:hover{background:rgba(43,240,176,.1);transform:translateY(-1px);color:var(--main);box-shadow:var(--glow)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--main);font-size:14px;font-weight:600}
.btn-text::after{content:"›";transition:transform .2s ease}
.btn-text:hover::after{transform:translateX(3px)}
.nav-cta{font-size:14.5px;padding:10px 22px}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:82px 0 68px;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,12,20,.86) 0%,rgba(10,12,20,.92) 55%,var(--bg) 100%),
             radial-gradient(900px 380px at 12% 0%,rgba(43,240,176,.16),transparent 62%);
}
.cat-hero .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t4);margin-bottom:20px}
.crumbs a{color:var(--t4)}
.crumbs a:hover{color:var(--main)}
.crumbs span{color:var(--t3)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--main);border-radius:var(--r-badge);
  background:rgba(43,240,176,.12);border:1px solid rgba(43,240,176,.28);
  padding:5px 12px;margin-bottom:18px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--main);box-shadow:0 0 10px var(--main)}
.cat-hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;max-width:820px}
.cat-hero .lead{
  margin-top:18px;max-width:660px;font-size:17px;color:var(--t2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
.hero-meta div{min-width:130px}
.hero-meta b{display:block;font-family:"Barlow",system-ui,sans-serif;font-size:24px;color:var(--main);line-height:1.2}
.hero-meta span{font-size:13px;color:var(--t4)}

/* ---------- sections ---------- */
.section{padding:var(--gap-block) 0;position:relative;z-index:1}
.section-alt{background:var(--bg-block);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:42px}
.sec-tag{
  display:inline-block;font-size:12.5px;color:var(--amber);
  background:rgba(255,180,39,.1);border:1px solid rgba(255,180,39,.25);
  border-radius:var(--r-badge);padding:4px 10px;margin-bottom:14px;letter-spacing:.5px;
}
.sec-head h2{font-size:clamp(24px,2.4vw,28px);line-height:1.35}
.sec-head p{margin-top:14px;color:var(--t3);font-size:15.5px}

/* intro */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.intro-text p{font-size:16.5px;color:var(--t2)}
.intro-text h2{font-size:27px;margin-bottom:20px}
.intro-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);position:relative}
.intro-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.intro-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;font-size:13px;color:var(--t2);
  background:linear-gradient(180deg,transparent,rgba(10,12,20,.92));
}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.stat:hover{border-color:rgba(43,240,176,.45);transform:translateY(-2px);box-shadow:var(--glow)}
.stat b{display:block;font-family:"Barlow",system-ui,sans-serif;font-size:26px;color:var(--main);line-height:1.3}
.stat span{font-size:13.5px;color:var(--t3)}

/* layout: toc + entries */
.cat-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:44px;align-items:start}
.toc{
  position:sticky;top:96px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;
}
.toc h3{font-size:16px;margin-bottom:6px}
.toc .toc-note{font-size:13px;color:var(--t4);margin-bottom:16px}
.toc ol{list-style:none;counter-reset:toc;display:flex;flex-direction:column;gap:2px}
.toc ol li{counter-increment:toc}
.toc ol a{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--t3);padding:8px 10px;border-radius:8px;
  border-left:2px solid transparent;transition:all .18s ease;
}
.toc ol a::before{
  content:counter(toc,decimal-leading-zero);
  font-family:"Barlow",system-ui,sans-serif;font-size:12.5px;color:var(--t4);
}
.toc ol a:hover{color:var(--t1);background:rgba(255,255,255,.04);border-left-color:var(--main)}
.toc ol a:hover::before{color:var(--main)}
.toc-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--t4)}

.entry-list{display:flex;flex-direction:column;gap:18px}
.entry-card{
  display:grid;grid-template-columns:200px minmax(0,1fr);gap:20px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(43,240,176,.45);box-shadow:var(--glow)}
.entry-thumb{position:relative;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.entry-thumb img{width:100%;height:100%;aspect-ratio:3/2;object-fit:cover}
.entry-body{display:flex;flex-direction:column;min-width:0}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.badge-soft,.badge-magenta,.badge-amber{
  display:inline-flex;align-items:center;font-size:12.5px;border-radius:var(--r-badge);
  padding:3px 10px;line-height:1.7;
}
.badge-soft{color:var(--main);background:rgba(43,240,176,.12);border:1px solid rgba(43,240,176,.24)}
.badge-magenta{color:var(--magenta);background:rgba(255,61,129,.12);border:1px solid rgba(255,61,129,.24)}
.badge-amber{color:var(--amber);background:rgba(255,180,39,.1);border:1px solid rgba(255,180,39,.24)}
.entry-body h3{font-size:19px;line-height:1.45;margin-bottom:8px}
.entry-body p{font-size:15px;color:var(--t3);margin-bottom:14px}
.entry-foot{display:flex;flex-wrap:wrap;gap:18px;align-items:center;margin-top:auto;font-size:13px;color:var(--t4)}
.entry-foot .dot{width:4px;height:4px;border-radius:50%;background:var(--t4)}

/* scenes */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.scene-card:hover{transform:translateY(-2px);border-color:rgba(43,240,176,.45);box-shadow:var(--glow)}
.scene-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(43,240,176,.12);border:1px solid rgba(43,240,176,.3);
  color:var(--main);font-weight:800;font-size:15px;margin-bottom:18px;
}
.scene-card h3{font-size:19px;margin-bottom:10px}
.scene-card p{font-size:15px;color:var(--t3)}

/* flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.flow::before{
  content:"";position:absolute;left:22px;right:22px;top:22px;height:1px;
  background:linear-gradient(90deg,rgba(43,240,176,.5),rgba(43,240,176,.08));
}
.flow-step{position:relative;padding-top:58px}
.flow-num{
  position:absolute;top:0;left:0;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;background:var(--bg-block);
  border:1px solid rgba(43,240,176,.5);color:var(--main);
  font-family:"Barlow",system-ui,sans-serif;font-weight:700;
  box-shadow:0 0 16px rgba(43,240,176,.2);
}
.flow-step h3{font-size:17.5px;margin-bottom:8px}
.flow-step p{font-size:14.5px;color:var(--t3)}

/* faq */
.faq-list{max-width:880px;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 4px;font-size:17px;color:var(--t1);font-weight:600;
  transition:color .2s ease,padding .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"⌄";color:var(--main);font-size:20px;line-height:1;transition:transform .25s ease;flex:0 0 auto;
}
.faq-item[open] summary{color:var(--main)}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-body{
  padding:0 4px 22px;border-left:3px solid var(--main);padding-left:16px;
  background:linear-gradient(90deg,rgba(43,240,176,.06),transparent 70%);
  font-size:15.5px;color:var(--t2);
}

/* cta */
.cta-band{
  background:linear-gradient(120deg,rgba(43,240,176,.1),rgba(255,61,129,.07) 60%,transparent);
  border:1px solid var(--line);border-radius:18px;padding:40px;
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
}
.cta-band h2{font-size:26px}
.cta-band p{margin-top:12px;color:var(--t3);font-size:15.5px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 240px;background:#0A0D1B;border:1px solid var(--line);border-radius:var(--r-input);
  padding:12px 16px;color:var(--t1);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--t4)}
.cta-form input:focus{outline:none;border-color:var(--main);box-shadow:var(--glow)}
.form-tip{font-size:13px;color:var(--t4);margin-top:12px}
.form-msg{font-size:13.5px;color:var(--main);margin-top:10px;display:none}

/* footer */
.site-footer{background:var(--bg-block);border-top:1px solid var(--line);padding:64px 0 28px;position:relative;z-index:1}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:13.5px;color:var(--t4);max-width:340px}
.foot-col h4{font-size:15px;margin-bottom:16px;color:var(--t1)}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:13.5px;color:var(--t4)}
.foot-col a:hover{color:var(--main)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t4);position:relative;
}
.foot-bottom::before{
  content:"";position:absolute;top:-1px;left:0;width:120px;height:1px;
  background:linear-gradient(90deg,var(--main),transparent);
}

/* responsive */
@media (max-width:1199.98px){
  :root{--gap-block:76px}
  .cat-layout{gap:32px;grid-template-columns:232px minmax(0,1fr)}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px}
  .flow::before{display:none}
}
@media (max-width:991.98px){
  .nav-toggle{display:flex}
  .nav-collapse{
    position:absolute;left:0;right:0;top:72px;flex-direction:column;align-items:stretch;gap:16px;
    background:#0E1120;border-bottom:1px solid var(--line);padding:18px 24px 24px;
    box-shadow:0 24px 40px rgba(0,0,0,.45);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-item{padding:12px 14px;border-radius:10px;font-size:15.5px}
  .nav-item.active{background:rgba(43,240,176,.08)}
  .nav-item.active::after{display:none}
  .nav-cta{width:100%}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .scene-grid{grid-template-columns:1fr 1fr}
  .cat-layout{grid-template-columns:1fr}
  .toc{position:static}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (min-width:992px){
  .nav-collapse.collapse{display:flex !important;height:auto !important;visibility:visible !important}
}
@media (max-width:767.98px){
  :root{--gap-block:56px}
  body{font-size:16px}
  .container{padding-left:18px;padding-right:18px}
  .brand-text em{letter-spacing:2px}
  .cat-hero{padding:56px 0 48px}
  .cat-hero .lead{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .hero-meta{gap:18px}
  .stats{grid-template-columns:1fr 1fr}
  .scene-grid{grid-template-columns:1fr}
  .entry-card{grid-template-columns:1fr;padding:14px}
  .entry-thumb img{aspect-ratio:16/9}
  .flow{grid-template-columns:1fr}
  .cta-band{padding:26px 20px;border-radius:14px}
  .cta-form input{flex:1 1 100%}
  .cta-form .btn-main{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr}
  .cat-hero h1{font-size:28px}
}

/* roulang page: category2 */
:root{
  --bg:#0A0C14;
  --bg-soft:#0E1120;
  --panel:#141830;
  --panel-2:#12162A;
  --line:rgba(255,255,255,.08);
  --main:#2BF0B0;
  --main-dim:rgba(43,240,176,.12);
  --magenta:#FF3D81;
  --amber:#FFB427;
  --t1:#F2F5FF;
  --t2:#C9D2E8;
  --t3:#8C97B4;
  --t4:#6C7691;
  --radius-card:14px;
  --radius-btn:999px;
  --radius-sm:10px;
  --glow:0 0 0 1px rgba(43,240,176,.45),0 0 20px rgba(43,240,176,.22);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Barlow","DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.6;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:var(--main);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease;}
a:hover{color:#5BF6C6;text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{color:var(--t1);font-weight:700;margin:0;line-height:1.35;letter-spacing:.2px;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--main);
  outline-offset:3px;
  border-radius:6px;
}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;position:relative;z-index:1;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(10,12,20,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,240,176,.65),transparent);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px;}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,rgba(43,240,176,.22),rgba(43,240,176,.05));
  border:1px solid rgba(43,240,176,.45);
  color:var(--main);
  font-weight:800;
  font-size:18px;
  box-shadow:0 0 16px rgba(43,240,176,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{color:var(--t1);font-size:17px;letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--t3);letter-spacing:2px;}
.nav-collapse{display:flex;align-items:center;gap:20px;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-item{
  display:block;
  position:relative;
  padding:9px 13px;
  font-size:15px;
  color:var(--t2);
  border-radius:8px;
  text-decoration:none;
  transition:color .2s ease,background .2s ease;
}
.nav-item:hover{color:var(--t1);background:rgba(255,255,255,.05);text-decoration:none;}
.nav-item.active{color:var(--main);}
.nav-item.active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--main);
  box-shadow:0 0 12px rgba(43,240,176,.75);
}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;
  border-radius:var(--radius-btn);
  background:var(--main);
  border:1px solid var(--main);
  color:#07211A;
  font-weight:700;
  font-size:15px;
  cursor:pointer;
  text-decoration:none;
  transition:transform .18s ease,filter .18s ease,box-shadow .18s ease;
  box-shadow:0 0 0 1px rgba(43,240,176,.25),0 8px 24px rgba(43,240,176,.14);
}
.btn-main:hover{filter:brightness(1.08);transform:translateY(-1px);color:#07211A;text-decoration:none;box-shadow:var(--glow);}
.btn-main:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;
  border-radius:var(--radius-sm);
  background:transparent;
  border:1px solid rgba(43,240,176,.55);
  color:var(--main);
  font-weight:600;
  font-size:15px;
  cursor:pointer;
  text-decoration:none;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-ghost:hover{background:var(--main-dim);transform:translateY(-1px);color:var(--main);text-decoration:none;box-shadow:0 0 0 1px rgba(43,240,176,.35);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--main);font-weight:600;font-size:14.5px;text-decoration:none;
}
.btn-text::after{content:"→";transition:transform .2s ease;}
.btn-text:hover{text-decoration:none;}
.btn-text:hover::after{transform:translateX(3px);}
.nav-toggle{
  display:none;
  width:44px;height:40px;
  border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  padding:10px 10px;
  cursor:pointer;
  flex-direction:column;
  justify-content:space-between;
}
.nav-toggle span{display:block;height:2px;background:var(--t1);border-radius:2px;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:96px 0 76px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,12,20,.82) 0%,rgba(10,12,20,.93) 55%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:6px;
  background:var(--main-dim);
  border:1px solid rgba(43,240,176,.3);
  color:var(--main);
  font-size:13px;
  letter-spacing:1px;
  margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--main);box-shadow:0 0 10px var(--main);}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.25;
  margin-bottom:18px;
}
.hero h1 .hl{color:var(--main);}
.hero-sub{
  font-size:17px;
  color:var(--t2);
  max-width:640px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-facts{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  max-width:720px;
}
.fact{
  background:rgba(20,24,48,.72);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:16px 18px;
}
.fact b{display:block;font-family:var(--font-num);font-size:22px;color:var(--main);line-height:1.3;}
.fact span{font-size:13px;color:var(--t3);}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section.alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:clamp(23px,2.6vw,28px);margin-bottom:12px;}
.sec-head p{color:var(--t3);font-size:15.5px;margin:0;}
.sec-tag{
  display:inline-block;
  font-size:12.5px;
  color:var(--main);
  letter-spacing:2px;
  margin-bottom:10px;
}

/* ---------- 主张条 ---------- */
.claim-bar{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.claim-item{
  background:var(--bg-soft);
  padding:24px 20px;
  display:flex;align-items:center;gap:12px;
  font-size:15px;color:var(--t2);
}
.claim-item i{
  width:10px;height:10px;border-radius:3px;
  background:var(--main);
  box-shadow:0 0 12px rgba(43,240,176,.6);
  flex:0 0 auto;
}

/* ---------- 导读 ---------- */
.lead-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:36px;align-items:start;}
.lead-text p{font-size:16.5px;color:var(--t2);}
.lead-note{
  background:var(--panel);
  border:1px solid var(--line);
  border-left:3px solid var(--main);
  border-radius:var(--radius-card);
  padding:22px 24px;
}
.lead-note h3{font-size:17px;margin-bottom:12px;}
.lead-note li{
  font-size:14.5px;color:var(--t3);
  padding-left:16px;position:relative;margin-bottom:9px;
}
.lead-note li::before{
  content:"";position:absolute;left:0;top:12px;
  width:6px;height:6px;border-radius:50%;
  background:var(--amber);
}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:16px;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:32px;
}
.chip{
  padding:8px 16px;
  border-radius:6px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--t3);
  font-size:14px;
  cursor:pointer;
  transition:all .2s ease;
}
.chip:hover{color:var(--t1);border-color:rgba(43,240,176,.4);}
.chip.is-active{
  background:var(--main-dim);
  border-color:rgba(43,240,176,.5);
  color:var(--main);
  box-shadow:0 0 14px rgba(43,240,176,.16);
}

/* ---------- 卡片栅格 ---------- */
.cal-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.cal-card{
  display:flex;flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.cal-card:hover{transform:translateY(-2px);border-color:rgba(43,240,176,.5);box-shadow:var(--glow);}
.cal-media{aspect-ratio:16/10;overflow:hidden;background:var(--bg);}
.cal-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.cal-card:hover .cal-media img{transform:scale(1.04);}
.cal-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.badge{
  display:inline-block;
  padding:3px 10px;
  border-radius:6px;
  font-size:12.5px;
  background:var(--main-dim);
  color:var(--main);
  border:1px solid rgba(43,240,176,.22);
}
.badge.magenta{background:rgba(255,61,129,.12);color:var(--magenta);border-color:rgba(255,61,129,.25);}
.badge.amber{background:rgba(255,180,39,.12);color:var(--amber);border-color:rgba(255,180,39,.25);}
.cal-body h3{font-size:19px;margin-bottom:10px;line-height:1.45;}
.cal-body p{font-size:15px;color:var(--t3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.cal-foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--t4);
}
.cal-foot a{font-size:14px;font-weight:600;}

/* ---------- 时间节点 ---------- */
.node-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.node-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px;
  position:relative;
  transition:border-color .2s ease,transform .2s ease;
}
.node-card:hover{border-color:rgba(43,240,176,.45);transform:translateY(-2px);}
.node-card .node-idx{
  font-family:var(--font-num);
  font-size:13px;letter-spacing:2px;color:var(--main);
  display:block;margin-bottom:14px;
}
.node-card h3{font-size:18px;margin-bottom:10px;}
.node-card p{font-size:14.8px;color:var(--t3);margin:0;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{
  position:relative;
  padding:26px 22px 24px;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
}
.step::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  font-family:var(--font-num);
  font-size:14px;color:var(--main);
  display:block;margin-bottom:12px;letter-spacing:1px;
}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--t3);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);background:transparent;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 44px 20px 18px;
  position:relative;
  font-size:17px;
  font-weight:600;
  color:var(--t1);
  transition:color .2s ease,background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"▾";
  position:absolute;
  right:18px;top:50%;
  transform:translateY(-50%);
  color:var(--main);
  font-size:14px;
  transition:transform .25s ease;
}
.faq-item[open] summary{color:var(--main);}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg);}
.faq-item[open]{
  background:rgba(255,255,255,.025);
  border-left:3px solid var(--main);
}
.faq-item summary:hover{background:rgba(255,255,255,.03);}
.faq-body{padding:0 44px 20px 21px;font-size:15.5px;color:var(--t3);}
.faq-body p{margin:0;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,rgba(20,24,48,.95),rgba(14,17,32,.95));
  border:1px solid rgba(43,240,176,.25);
  border-radius:18px;
  padding:44px 40px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:32px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;right:-80px;top:-80px;
  width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,240,176,.22),transparent 70%);
}
.cta-band h2{font-size:clamp(21px,2.4vw,26px);margin-bottom:12px;position:relative;}
.cta-band p{font-size:15px;color:var(--t3);margin:0;position:relative;}
.cta-form{display:flex;gap:12px;position:relative;z-index:1;}
.cta-form input{
  flex:1;
  padding:13px 16px;
  border-radius:var(--radius-sm);
  background:rgba(10,12,20,.85);
  border:1px solid var(--line);
  color:var(--t1);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--t4);}
.cta-form input:focus{
  outline:none;
  border-color:var(--main);
  box-shadow:0 0 0 1px rgba(43,240,176,.45),0 0 18px rgba(43,240,176,.2);
}
.cta-form .btn-main{white-space:nowrap;}
.form-tip{font-size:13px;color:var(--t4);margin-top:12px;position:relative;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,240,176,.55),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--t3);max-width:360px;margin:0;}
.foot-col h4{font-size:15px;margin-bottom:16px;color:var(--t1);}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:var(--t3);}
.foot-col a:hover{color:var(--main);text-decoration:none;}
.foot-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--t4);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding-left:22px;padding-right:22px;}
  .section{padding:76px 0;}
}
@media (max-width:991px){
  .nav-toggle{display:flex;}
  .nav-collapse{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:16px 0 8px;
  }
  .nav-collapse.show{display:flex;}
  .nav-bar{flex-wrap:wrap;height:auto;padding:12px 0;}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-item{padding:12px 14px;border-radius:10px;}
  .nav-item.active{background:rgba(43,240,176,.08);}
  .nav-item.active::after{display:none;}
  .nav-cta{width:100%;margin-top:6px;}
  .lead-grid{grid-template-columns:1fr;gap:24px;}
  .node-grid{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .claim-bar{grid-template-columns:1fr 1fr;}
  .cta-band{grid-template-columns:1fr;padding:36px 26px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:52px 0;}
  .hero{padding:64px 0 52px;}
  .hero-facts{grid-template-columns:1fr;gap:12px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .cal-grid{grid-template-columns:1fr;gap:18px;}
  .node-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .claim-bar{grid-template-columns:1fr;}
  .cta-form{flex-direction:column;}
  .cta-form .btn-main{width:100%;}
  .foot-grid{grid-template-columns:1fr;}
  .sec-head{margin-bottom:30px;}
  .faq-item summary{font-size:15.8px;padding:17px 40px 17px 14px;}
  .faq-body{padding:0 20px 18px 17px;}
}
@media (max-width:519px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text em{letter-spacing:1px;}
  .cal-body{padding:16px 16px 18px;}
}

/* roulang page: category3 */
:root{
  --bg:#0A0C14;
  --bg-soft:#0E1120;
  --panel:#141830;
  --panel-2:#12162A;
  --line:rgba(255,255,255,.08);
  --main:#2BF0B0;
  --main-dim:rgba(43,240,176,.12);
  --magenta:#FF3D81;
  --amber:#FFB427;
  --t1:#F2F5FF;
  --t2:#C9D2E8;
  --t3:#8C97B4;
  --t4:#6C7691;
  --r-card:14px;
  --r-btn:999px;
  --r-btn2:10px;
  --glow:0 0 0 1px rgba(43,240,176,.45),0 0 20px rgba(43,240,176,.22);
  --shadow:0 18px 40px rgba(0,0,0,.35);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Barlow","DIN Alternate",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--main);outline-offset:3px;border-radius:4px}

.container{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline:24px;
}

/* ---------- 顶栏导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(10,12,20,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";
  display:block;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,240,176,.75),transparent);
}
.nav-bar{
  min-height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--main),#12b585);
  color:#04140f;
  font-size:19px;
  font-weight:800;
  box-shadow:0 0 18px rgba(43,240,176,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{color:var(--t1);font-size:17px;letter-spacing:.5px}
.brand-text em{font-style:normal;font-size:12px;color:var(--t3);letter-spacing:2px}

.nav-collapse{
  display:flex;
  align-items:center;
  gap:26px;
  flex:1 1 auto;
  justify-content:flex-end;
}
.nav-list{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-item{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--t3);
  border-radius:8px;
}
.nav-item:hover{color:var(--t1)}
.nav-item.active{color:var(--main)}
.nav-item.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--main);
  box-shadow:0 0 12px rgba(43,240,176,.7);
}
.nav-toggle{
  display:none;
  width:44px;height:40px;
  border:1px solid var(--line);
  border-radius:10px;
  background:rgba(255,255,255,.03);
  padding:0;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  margin:3px auto;
  border-radius:2px;
  background:var(--t2);
}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  padding:13px 26px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-main{
  background:var(--main);
  color:#04140f;
  box-shadow:0 10px 26px rgba(43,240,176,.18);
}
.btn-main:hover{background:#41ffc2;color:#04140f;transform:translateY(-1px);box-shadow:var(--glow)}
.btn-ghost{
  background:transparent;
  border-color:rgba(43,240,176,.55);
  color:var(--main);
  border-radius:var(--r-btn2);
}
.btn-ghost:hover{background:rgba(43,240,176,.1);transform:translateY(-1px);box-shadow:var(--glow)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--main);font-size:14.5px;font-weight:600;
}
.btn-text span{transition:transform .2s ease}
.btn-text:hover span{transform:translateX(3px)}
.nav-cta{padding:11px 22px;font-size:14.5px}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;
  padding:104px 0 82px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(10,12,20,.96) 0%,rgba(10,12,20,.82) 46%,rgba(10,12,20,.6) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(43,240,176,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(43,240,176,.06) 1px,transparent 1px);
  background-size:52px 52px;
  opacity:.55;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 80%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 80%);
  z-index:0;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--t4);
  margin-bottom:20px;
}
.crumb a:hover{color:var(--main)}
.crumb .sep{color:var(--t4)}
.crumb .now{color:var(--t3)}
.hero-tagline{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--main);
  background:var(--main-dim);
  border:1px solid rgba(43,240,176,.28);
  border-radius:6px;
  padding:6px 12px;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.25;
  color:var(--t1);
  font-weight:800;
  letter-spacing:.4px;
  max-width:820px;
}
.hero-sub{
  margin-top:20px;
  max-width:700px;
  font-size:17px;
  color:var(--t3);
  line-height:1.9;
}
.hero-actions{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-soft{background:var(--bg-soft);border-block:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-kicker{
  display:inline-block;
  font-size:13px;
  letter-spacing:2px;
  color:var(--main);
  margin-bottom:14px;
}
.sec-head h2{
  font-size:clamp(24px,2.6vw,28px);
  line-height:1.35;
  color:var(--t1);
  font-weight:700;
}
.sec-head p{
  margin-top:14px;
  font-size:15.5px;
  color:var(--t3);
  line-height:1.85;
}
.divider-neon{
  height:1px;
  background:linear-gradient(90deg,rgba(43,240,176,.7),rgba(43,240,176,0));
  margin-top:22px;
  width:120px;
}

/* ---------- 速览条 ---------- */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.quick-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 20px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.quick-item:hover{transform:translateY(-2px);border-color:rgba(43,240,176,.5);box-shadow:var(--glow)}
.quick-item .q-label{
  display:block;
  font-size:12.5px;
  letter-spacing:1px;
  color:var(--t4);
  margin-bottom:8px;
}
.quick-item strong{
  display:block;
  font-size:18px;
  color:var(--t1);
  font-weight:700;
  line-height:1.5;
}
.quick-item em{
  display:block;
  margin-top:8px;
  font-style:normal;
  font-size:13.5px;
  color:var(--t3);
  line-height:1.7;
}

/* ---------- 时间轴 ---------- */
.timeline{
  position:relative;
  padding-left:44px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:13px;
  top:10px;
  bottom:10px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,rgba(43,240,176,.85),rgba(43,240,176,.28) 55%,rgba(43,240,176,.04));
}
.tl-item{position:relative;margin-bottom:30px}
.tl-item:last-child{margin-bottom:0}
.tl-node{
  position:absolute;
  left:-37px;
  top:34px;
  width:14px;height:14px;
  border-radius:50%;
  background:#0A0C14;
  border:2px solid var(--main);
  box-shadow:0 0 0 1px rgba(43,240,176,.45),0 0 20px rgba(43,240,176,.22);
  z-index:2;
}
.tl-card{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.tl-item:hover .tl-card{transform:translateY(-2px);border-color:rgba(43,240,176,.5);box-shadow:var(--glow)}
.tl-media{position:relative;background:#0b0e1a}
.tl-media img{width:100%;height:100%;min-height:200px;object-fit:cover;opacity:.92}
.tl-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,12,20,.15),rgba(10,12,20,.62));
}
.tl-body{padding:26px 28px}
.tl-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.badge-tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;
  padding:4px 10px;
  border-radius:6px;
  background:var(--main-dim);
  color:var(--main);
}
.badge-tag.tag-magenta{background:rgba(255,61,129,.12);color:var(--magenta)}
.badge-tag.tag-amber{background:rgba(255,180,39,.13);color:var(--amber)}
.tl-time{font-family:var(--font-num);font-size:13px;color:var(--t4);letter-spacing:.6px}
.tl-body h3{
  font-size:20px;
  line-height:1.45;
  color:var(--t1);
  font-weight:700;
}
.tl-body p{
  margin-top:12px;
  font-size:15.5px;
  color:var(--t3);
  line-height:1.85;
}
.tl-points{margin-top:16px;display:grid;gap:8px}
.tl-points li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--t2);
  line-height:1.75;
}
.tl-points li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--main);
  box-shadow:0 0 8px rgba(43,240,176,.6);
}
.tl-body .btn-text{margin-top:18px}

/* ---------- 步骤流 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.step{
  position:relative;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 22px 24px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-2px);border-color:rgba(43,240,176,.5);box-shadow:var(--glow)}
.step-num{
  font-family:var(--font-num);
  font-size:30px;
  font-weight:700;
  color:rgba(43,240,176,.85);
  line-height:1;
  letter-spacing:1px;
}
.step h3{
  margin-top:14px;
  font-size:17.5px;
  color:var(--t1);
  font-weight:700;
  line-height:1.5;
}
.step p{
  margin-top:10px;
  font-size:14.5px;
  color:var(--t3);
  line-height:1.8;
}

/* ---------- 图文两栏 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:52px;
  align-items:center;
}
.split .media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:4/3;
}
.split .media img{width:100%;height:100%;object-fit:cover}
.split .media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(43,240,176,.1),rgba(10,12,20,.55));
}
.split h2{
  font-size:clamp(23px,2.4vw,27px);
  color:var(--t1);
  line-height:1.4;
  font-weight:700;
}
.split p{margin-top:16px;font-size:16px;color:var(--t3);line-height:1.9}
.split .mini-list{margin-top:24px;display:grid;gap:12px}
.split .mini-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--t2);line-height:1.75;
}
.split .mini-list li .dot{
  flex:0 0 auto;
  width:8px;height:8px;margin-top:10px;
  border-radius:50%;
  background:var(--magenta);
  box-shadow:0 0 10px rgba(255,61,129,.5);
}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--t1);
  font-size:17.5px;
  font-weight:600;
  line-height:1.6;
  padding:22px 52px 22px 18px;
  border-radius:0;
  box-shadow:none;
  transition:background .2s ease,color .2s ease;
}
.faq-acc .accordion-button:hover{color:var(--main)}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--main);
  background:rgba(43,240,176,.06);
  box-shadow:inset 3px 0 0 0 var(--main);
}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid rgba(43,240,176,.5);outline-offset:-2px}
.faq-acc .accordion-button::after{
  content:"";
  position:absolute;
  right:22px;
  top:50%;
  width:9px;height:9px;
  margin:0;
  border-right:2px solid var(--main);
  border-bottom:2px solid var(--main);
  background-image:none;
  transform:translateY(-70%) rotate(45deg);
  transition:transform .25s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:translateY(-30%) rotate(-135deg)}
.faq-acc .accordion-body{
  padding:4px 52px 24px 18px;
  font-size:15.5px;
  color:var(--t3);
  line-height:1.9;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:18px;
  border:1px solid rgba(43,240,176,.22);
  background:linear-gradient(120deg,#0E1120 0%,#141830 58%,#101a2a 100%);
  padding:44px 46px;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,420px);
  gap:32px;
  align-items:center;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,240,176,.18),transparent 70%);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(22px,2.4vw,26px);
  color:var(--t1);
  font-weight:700;
  line-height:1.4;
}
.cta-band p{margin-top:12px;font-size:15px;color:var(--t3);line-height:1.85}
.sub-form{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
.sub-form input{
  flex:1 1 200px;
  min-width:0;
  background:#0A0C14;
  border:1px solid var(--line);
  border-radius:10px;
  padding:13px 16px;
  color:var(--t1);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--t4)}
.sub-form input:focus{
  outline:none;
  border-color:rgba(43,240,176,.7);
  box-shadow:var(--glow);
}
.sub-form .btn-main{flex:0 0 auto}
.form-tip{
  width:100%;
  font-size:13.5px;
  color:var(--t4);
  margin-top:2px;
}
.form-tip.is-ok{color:var(--main)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#080A12;
  border-top:1px solid var(--line);
  padding:64px 0 26px;
  margin-top:0;
}
.site-footer::before{
  content:"";
  display:block;
  height:1px;
  margin-top:-65px;
  margin-bottom:64px;
  background:linear-gradient(90deg,transparent,rgba(43,240,176,.6),transparent);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:13.5px;color:var(--t4);line-height:1.85;max-width:340px}
.foot-col h4{
  font-size:14px;
  color:var(--t1);
  font-weight:700;
  margin-bottom:16px;
  letter-spacing:.6px;
}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:13.5px;color:var(--t3)}
.foot-col a:hover{color:var(--main);text-decoration:underline;text-underline-offset:3px}
.foot-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:var(--t4);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{padding-inline:20px}
  .section{padding:76px 0}
  .tl-card{grid-template-columns:240px minmax(0,1fr)}
  .split{gap:36px}
}

@media (max-width:991.98px){
  .nav-toggle{display:block}
  .nav-collapse{
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    padding:16px 0 20px;
    border-top:1px solid var(--line);
    margin-top:12px;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-item{padding:12px 12px;border-bottom:1px solid rgba(255,255,255,.05)}
  .nav-item.active::after{left:12px;right:auto;width:26px;bottom:6px}
  .nav-cta{width:100%}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:34px 28px}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  .page-hero{padding:82px 0 66px}
}

@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:56px 0}
  .page-hero{padding:64px 0 54px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .timeline{padding-left:30px}
  .timeline::before{left:8px}
  .tl-node{left:-25px;top:26px;width:12px;height:12px}
  .tl-card{grid-template-columns:1fr}
  .tl-media img{min-height:190px;aspect-ratio:16/10}
  .tl-body{padding:22px 20px}
  .quick-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;gap:8px}
  .faq-acc .accordion-button{font-size:16.5px;padding:18px 46px 18px 14px}
  .faq-acc .accordion-body{padding:2px 24px 20px 14px}
  .sub-form{flex-direction:column}
  .sub-form .btn-main{width:100%}
}

@media (max-width:519.98px){
  .container{padding-inline:16px}
  .sec-head{margin-bottom:32px}
  .timeline{padding-left:24px}
  .timeline::before{left:6px}
  .tl-node{left:-21px;width:11px;height:11px}
  .cta-band{padding:26px 18px;border-radius:14px}
  .quick-item{padding:18px 16px}
  .step{padding:22px 18px}
}