/* roulang page: index */
:root{
  --primary:#D6338E;
  --primary-hover:#F04BA6;
  --primary-deep:#A81E6C;
  --gold:#FFB23F;
  --teal:#2ED9B0;
  --bg:#141118;
  --card:#1C1721;
  --layer:#241D2B;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(214,51,142,.45);
  --text:#F6F1F8;
  --text-2:#B4A9BC;
  --text-3:#7E7385;
  --light-bg:#F7F4F9;
  --light-text:#241C2C;
  --light-text-2:#5A5163;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(214,51,142,.45);
  --shadow-soft:0 12px 28px -18px rgba(36,28,44,.35);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border-radius:var(--radius-img);background:var(--layer);object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.wrap{padding:0 32px;}}
.sec{padding:56px 0;scroll-margin-top:80px;}
@media (min-width:768px){.sec{padding:88px 0;}}
@media (min-width:1024px){.sec{padding:96px 0;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.04em;color:var(--primary-hover);
  border:1px solid rgba(214,51,142,.35);background:rgba(214,51,142,.12);
  padding:5px 12px;border-radius:999px;
}
.sec-head{max-width:720px;margin-bottom:36px;}
.sec-head h2{font-size:28px;margin-bottom:14px;}
@media (min-width:768px){.sec-head h2{font-size:32px;}}
.sec-head p{color:var(--text-2);font-size:15.5px;margin:0;}
.muted{color:var(--text-3);font-size:14px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(20,17,24,.92);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:56px;}
@media (min-width:1024px){.header-inner{height:64px;gap:28px;}}
.logo{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.logo-mark{font-weight:700;font-size:17px;color:var(--text);letter-spacing:0;}
.logo-sub{font-weight:500;font-size:17px;color:var(--primary-hover);}
.logo-badge{
  display:none;align-items:center;gap:5px;font-size:11px;color:var(--teal);
  border:1px solid rgba(46,217,176,.4);background:rgba(46,217,176,.1);
  padding:2px 8px;border-radius:999px;margin-left:4px;
}
@media (min-width:1024px){.logo-badge{display:inline-flex;}}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block;}
.main-nav{display:none;align-items:center;gap:22px;margin-left:12px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.main-nav a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--text);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--text);}
.main-nav a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.countdown{
  display:none;align-items:center;gap:6px;
  border:1px solid var(--line);background:var(--card);
  padding:5px 12px;border-radius:999px;font-size:12px;color:var(--text-2);
}
@media (min-width:1024px){.countdown{display:inline-flex;}}
.countdown b{font-variant-numeric:tabular-nums;color:var(--gold);font-weight:600;letter-spacing:.02em;}
.countdown i{font-style:normal;color:var(--text-3);}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;color:var(--text-2);
}
@media (min-width:1024px){.nav-toggle{display:none;}}
.nav-toggle:hover{border-color:var(--line-hover);color:var(--text);}
.drawer{
  display:none;position:fixed;inset:56px 0 0 0;z-index:55;
  background:var(--bg);border-top:1px solid var(--line);
  padding:24px 20px 120px;overflow-y:auto;
}
.drawer.open{display:block;}
.drawer a.drawer-link{
  display:block;font-size:20px;font-weight:600;padding:16px 0;border-bottom:1px solid var(--line);color:var(--text-2);
}
.drawer a.drawer-link.active{color:var(--primary-hover);}
.drawer-cta{position:fixed;left:20px;right:20px;bottom:20px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn .arrow{transition:transform .18s ease;font-size:16px;line-height:1;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{
  background:var(--primary);color:#fff;
  box-shadow:0 1px 0 rgba(255,255,255,.12), 0 14px 30px -18px rgba(214,51,142,.9);
}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);background:var(--primary-deep);}
.btn-ghost{
  background:transparent;color:var(--text);border-color:rgba(214,51,142,.5);
}
.btn-ghost:hover{background:rgba(214,51,142,.12);border-color:var(--primary);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-pill{border-radius:999px;}
.link-text{
  display:inline-block;color:var(--primary-hover);font-size:14px;position:relative;
}
.link-text::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.link-text:hover::after{transform:scaleX(1);}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.6;padding:4px 11px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);
}
.badge-primary{border-color:rgba(214,51,142,.4);background:rgba(214,51,142,.12);color:var(--primary-hover);}
.badge-gold{border-color:rgba(255,178,63,.4);background:rgba(255,178,63,.12);color:var(--gold);}
.badge-teal{border-color:rgba(46,217,176,.4);background:rgba(46,217,176,.1);color:var(--teal);}

/* ---------- hero ---------- */
.hero{padding:48px 0 40px;border-bottom:1px solid var(--line);}
@media (min-width:1024px){.hero{padding:72px 0 64px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:52px;}}
.hero-title{
  font-size:30px;line-height:1.25;font-weight:700;margin:18px 0 14px;
}
@media (min-width:768px){.hero-title{font-size:40px;}}
.hero-sub{font-size:17px;color:var(--text-2);margin:0 0 16px;}
.hero-desc{color:var(--text-2);font-size:15.5px;max-width:56ch;margin:0 0 26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.status-bar{display:flex;flex-wrap:wrap;gap:8px;}
.hero-visual{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);}
.hero-visual img{width:100%;aspect-ratio:16/10;border-radius:0;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(214,51,142,.28),rgba(20,17,24,.72) 78%);
  pointer-events:none;
}

/* ---------- features bento ---------- */
.bento{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:1024px){
  .bento{grid-template-columns:1.35fr 1fr 1fr;grid-auto-rows:minmax(150px,auto);}
  .bento-main{grid-column:1/2;grid-row:1/3;}
  .bento-a{grid-column:2/3;grid-row:1/2;}
  .bento-b{grid-column:3/4;grid-row:1/2;}
  .bento-c{grid-column:2/4;grid-row:2/3;}
  .bento-d{grid-column:1/4;grid-row:3/4;display:grid;grid-template-columns:1fr 1.6fr;gap:24px;align-items:center;}
}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
@media (min-width:768px){.card{padding:24px;}}
.card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-card);}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{color:var(--text-2);font-size:14.5px;margin:0;}
.bento-main{display:flex;flex-direction:column;gap:18px;}
.bento-main img{width:100%;aspect-ratio:16/10;}
.icon-box{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(214,51,142,.12);border:1px solid rgba(214,51,142,.3);color:var(--primary-hover);
  font-size:15px;font-weight:600;margin-bottom:14px;
}
.bento-d .list-line{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}

/* ---------- demo ---------- */
.demo-panel{
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--card);
  display:grid;grid-template-columns:1fr;
}
@media (min-width:1024px){.demo-panel{grid-template-columns:1.5fr 1fr;}}
.demo-panel img{width:100%;height:100%;border-radius:0;min-height:240px;aspect-ratio:16/9;}
.demo-steps{padding:26px 22px;display:flex;flex-direction:column;justify-content:center;gap:18px;}
@media (min-width:768px){.demo-steps{padding:32px 30px;}}
.step-row{display:flex;gap:14px;align-items:flex-start;}
.step-num{
  font-variant-numeric:tabular-nums;font-size:14px;font-weight:600;color:var(--gold);
  border:1px solid rgba(255,178,63,.35);background:rgba(255,178,63,.1);
  border-radius:999px;padding:2px 10px;flex-shrink:0;
}
.step-row h3{font-size:16px;margin-bottom:4px;}
.step-row p{margin:0;font-size:14px;color:var(--text-2);}
.demo-foot{border-top:1px solid var(--line);margin-top:22px;}

/* ---------- proof (light) ---------- */
.proof{background:var(--light-bg);color:var(--light-text);}
.proof .eyebrow{border-color:rgba(214,51,142,.3);background:rgba(214,51,142,.1);color:var(--primary-deep);}
.proof .sec-head h2{color:var(--light-text);}
.proof .sec-head p{color:var(--light-text-2);}
.proof-grid{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:1024px){.proof-grid{grid-template-columns:260px 1fr;gap:48px;}}
.stat-list{display:flex;flex-direction:column;gap:22px;}
@media (min-width:768px) and (max-width:1023px){.stat-list{flex-direction:row;gap:32px;}}
.stat-list .stat b{display:block;font-size:34px;line-height:1.2;font-weight:700;color:var(--primary-deep);font-variant-numeric:tabular-nums;}
.stat-list .stat span{font-size:13.5px;color:var(--light-text-2);}
.quote-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){.quote-grid{grid-template-columns:1fr 1fr;}}
.quote-card{
  background:#fff;border:1px solid rgba(36,28,44,.08);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-soft);display:flex;gap:14px;
}
.quote-card img{width:52px;height:52px;border-radius:12px;flex-shrink:0;}
.quote-card h4{font-size:15px;color:var(--light-text);margin-bottom:6px;}
.quote-card p{font-size:14px;color:var(--light-text-2);margin:0;}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:1fr;gap:20px;align-items:start;}
@media (min-width:900px){.price-grid{grid-template-columns:1fr 1fr 1fr;gap:24px;}}
.price-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;display:flex;flex-direction:column;gap:16px;position:relative;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.price-card:hover{transform:translateY(-2px);border-color:var(--line-hover);}
.price-card.featured{border-color:rgba(255,178,63,.55);box-shadow:0 1px 0 rgba(255,255,255,.06),0 20px 44px -26px rgba(255,178,63,.6);}
@media (min-width:900px){.price-card.featured{margin-top:-16px;padding-top:32px;}}
.price-card .plan{font-size:19px;font-weight:600;}
.price-card .price{font-size:26px;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums;}
.price-card .fit{font-size:14px;color:var(--text-2);}
.price-card ul{display:flex;flex-direction:column;gap:8px;font-size:14.5px;color:var(--text-2);}
.price-card ul li{position:relative;padding-left:18px;}
.price-card ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--primary);}
.price-card .note{font-size:12.5px;color:var(--text-3);border-top:1px solid var(--line);padding-top:14px;margin:0;}
.ribbon{
  position:absolute;top:16px;right:16px;font-size:11.5px;color:#2A1A05;
  background:var(--gold);padding:2px 10px;border-radius:999px;font-weight:600;
}

/* ---------- cms list ---------- */
.list-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px;}
.list-head h2{font-size:26px;}
@media (min-width:768px){.list-head h2{font-size:30px;}}
.post-list{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){.post-list{grid-template-columns:1fr 1fr;gap:20px;}}
.post-card{
  position:relative;display:flex;gap:16px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:18px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-card);}
.post-card img{width:96px;height:96px;flex-shrink:0;border-radius:12px;}
@media (max-width:519px){.post-card img{display:none;}}
.post-body{min-width:0;display:flex;flex-direction:column;gap:6px;}
.post-body h3{font-size:16.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover .post-body h3{color:var(--primary-hover);}
.post-body .excerpt{
  font-size:13.5px;color:var(--text-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--text-3);margin-top:2px;}
.post-meta .sep{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);padding:32px 24px;text-align:center;
  color:var(--text-2);font-size:14.5px;display:flex;flex-direction:column;align-items:center;gap:14px;
}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:1024px){.faq-grid{grid-template-columns:320px 1fr;gap:48px;}}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-list details{
  border:1px solid var(--line);border-left:3px solid var(--primary);
  border-radius:12px;background:var(--card);padding:0 18px;
  transition:border-color .2s ease,background-color .2s ease;
}
.faq-list details:hover{border-color:var(--line-hover);border-left-color:var(--primary-hover);}
.faq-list details[open]{background:var(--layer);}
.faq-list summary{
  cursor:pointer;list-style:none;padding:16px 0;font-size:16px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::after{content:"+";color:var(--primary-hover);font-size:18px;line-height:1;}
.faq-list details[open] summary::after{content:"–";}
.faq-list details[open] summary{color:var(--primary-hover);}
.faq-list .answer{padding:0 0 18px;font-size:14.5px;color:var(--text-2);margin:0;}

/* ---------- contact form ---------- */
.form-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:768px){.form-grid{grid-template-columns:1fr 1fr;}.form-grid .full{grid-column:1/-1;}}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:6px;}
.field input,.field textarea{
  width:100%;background:var(--layer);border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:12px 14px;color:var(--text);font-size:15px;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:120px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(214,51,142,.25);
}
.field.error input,.field.error textarea{border-color:var(--gold);}
.field .tip{font-size:12.5px;color:var(--gold);margin-top:6px;display:none;}
.field.error .tip{display:block;}

/* ---------- cta ---------- */
.cta-panel{
  background:var(--primary);border-radius:24px;padding:34px 24px;color:#fff;
  display:flex;flex-direction:column;gap:22px;
  box-shadow:0 1px 0 rgba(255,255,255,.18),0 30px 60px -30px rgba(214,51,142,1);
}
@media (min-width:768px){.cta-panel{padding:44px 44px;flex-direction:row;align-items:center;justify-content:space-between;}}
.cta-panel h2{font-size:26px;margin-bottom:8px;}
.cta-panel p{margin:0;color:rgba(255,255,255,.86);font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}
.btn-light{background:#fff;color:var(--primary-deep);font-weight:600;}
.btn-light:hover{background:#F7F4F9;transform:translateY(-2px);}
.cta-link{color:#fff;font-size:14px;border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:2px;}
.cta-link:hover{border-bottom-color:#fff;}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:#100D14;padding:48px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--text);}
.footer-col p,.footer-col li{font-size:14px;color:var(--text-3);}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a:hover{color:var(--primary-hover);text-decoration:underline;text-underline-offset:4px;}
.footer-brand{display:flex;align-items:center;gap:8px;margin-bottom:12px;}
.footer-bottom{
  border-top:1px solid var(--line);margin-top:36px;padding-top:18px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--text-3);
}
.footer-accordion summary{
  display:none;
}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;z-index:50;right:24px;bottom:24px;
  display:none;align-items:center;gap:14px;
  background:var(--bg);border:1px solid var(--primary);border-radius:999px;
  padding:8px 8px 8px 18px;
  box-shadow:0 1px 0 rgba(255,255,255,.14),0 20px 40px -22px rgba(214,51,142,1);
  opacity:0;transform:translateY(14px);transition:opacity .25s ease,transform .25s ease;
}
.float-cta.show{opacity:1;transform:translateY(0);display:flex;}
.float-cta .cd{font-size:12px;color:var(--text-2);font-variant-numeric:tabular-nums;}
.float-cta .cd b{color:var(--gold);}
@media (max-width:767px){
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    padding:12px 16px calc(12px + env(safe-area-inset-bottom));
    justify-content:space-between;
  }
  .float-cta .btn{flex-shrink:0;}
}
@media (min-width:1024px){
  .sec-head{max-width:760px;}
}

/* roulang page: article */
:root{
  --brand:#D6338E;
  --brand-hover:#F04BA6;
  --brand-deep:#A81E6C;
  --amber:#FFB23F;
  --mint:#2ED9B0;
  --bg:#141118;
  --card:#1C1721;
  --layer:#241D2B;
  --light:#F7F4F9;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(214,51,142,.45);
  --text:#F6F1F8;
  --muted:#B4A9BC;
  --weak:#7E7385;
  --r-card:18px;
  --r-img:14px;
  --r-btn:10px;
  --shadow:0 1px 0 rgba(255,255,255,.06),0 18px 40px -24px rgba(214,51,142,.45);
  --shadow-soft:0 10px 30px -18px rgba(0,0,0,.7);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(214,51,142,.16), transparent 62%),
    radial-gradient(720px 460px at 4% 12%, rgba(255,178,63,.07), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--layer);border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
@media (min-width:1024px){.wrap{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(20,17,24,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.logo{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.logo-mark{font-size:20px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.logo-sub{font-size:20px;font-weight:500;color:var(--brand-hover);letter-spacing:.2px;}
.logo-badge{
  display:inline-flex;align-items:center;gap:5px;
  margin-left:6px;padding:2px 9px;border-radius:999px;
  border:1px solid rgba(46,217,176,.45);background:rgba(46,217,176,.12);
  font-size:12px;color:var(--mint);white-space:nowrap;
}
.logo-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.main-nav a{
  position:relative;font-size:15px;color:var(--muted);padding:6px 0;
  border-bottom:2px solid transparent;
}
.main-nav a:hover{color:var(--text);}
.main-nav a.active{color:var(--text);border-bottom-color:var(--brand);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.countdown{
  display:flex;align-items:center;gap:4px;
  padding:6px 12px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);
  font-size:12px;color:var(--muted);white-space:nowrap;
}
.countdown span{margin-right:4px;}
.countdown b{font-variant-numeric:tabular-nums;color:var(--amber);font-weight:600;font-size:13px;}
.countdown i{font-style:normal;color:var(--weak);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,background-color .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.btn-sm{min-height:38px;padding:0 15px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow);}
.btn-primary:hover{background:var(--brand-hover);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);background:var(--brand-deep);}
.btn-ghost{border-color:rgba(214,51,142,.55);color:var(--text);background:transparent;}
.btn-ghost:hover{background:rgba(214,51,142,.12);border-color:var(--brand-hover);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;min-height:44px;
  color:var(--brand-hover);font-size:15px;position:relative;
}
.btn-link::after{
  content:"";position:absolute;left:0;bottom:10px;height:1px;width:0;
  background:var(--brand-hover);transition:width .25s ease;
}
.btn-link:hover::after{width:100%;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--card);color:var(--text);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--line-hover);}
.mobile-drawer{
  position:fixed;inset:0;z-index:70;background:rgba(16,13,19,.98);
  padding:76px 24px 28px;display:none;flex-direction:column;gap:6px;
}
.mobile-drawer.open{display:flex;}
.mobile-drawer a{
  font-size:19px;color:var(--text);padding:14px 4px;border-bottom:1px solid var(--line);
}
.mobile-drawer a:hover{color:var(--brand-hover);}
.mobile-drawer .drawer-cta{margin-top:18px;width:100%;}
.drawer-close{
  position:absolute;top:16px;right:20px;width:44px;height:44px;
  border-radius:var(--r-btn);border:1px solid var(--line);background:var(--card);
  color:var(--text);font-size:18px;cursor:pointer;
}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(28,23,33,.5);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--weak);}
.crumb a{color:var(--weak);}
.crumb a:hover{color:var(--brand-hover);}
.crumb .sep{color:rgba(255,255,255,.18);}
.crumb .now{color:var(--muted);}

/* ---------- article ---------- */
.article-shell{padding:44px 0 8px;}
.article-inner{max-width:780px;margin:0 auto;}
.article-cat{
  display:inline-flex;align-items:center;padding:3px 12px;border-radius:999px;
  border:1px solid rgba(214,51,142,.45);background:rgba(214,51,142,.12);
  color:var(--brand-hover);font-size:12px;margin-bottom:16px;
}
.article-title{
  font-size:32px;line-height:1.35;font-weight:700;color:var(--text);
}
@media (min-width:768px){.article-title{font-size:36px;}}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:14px;color:var(--weak);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22);display:inline-block;}
.article-meta b{color:var(--muted);font-weight:500;}
.article-divider{height:1px;background:var(--line);margin:26px 0 34px;}
.article-body{
  font-size:17px;line-height:1.95;color:#E9E1EC;
}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  font-size:26px;line-height:1.42;color:var(--text);
  margin:42px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.5;color:var(--text);margin:30px 0 12px;}
.article-body h4{font-size:17px;color:var(--text);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:0;}
.article-body li{
  position:relative;padding-left:18px;margin-bottom:.5em;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;
  border-radius:50%;background:var(--brand);
}
.article-body ol{counter-reset:li;}
.article-body ol li::before{
  counter-increment:li;content:counter(li);
  position:absolute;left:0;top:0;color:var(--brand-hover);font-size:15px;font-weight:600;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--brand);
  background:rgba(214,51,142,.08);border-radius:0 10px 10px 0;color:var(--muted);
}
.article-body img{border-radius:var(--r-img);margin:24px auto;background:var(--layer);}
.article-body a{color:var(--brand-hover);border-bottom:1px solid rgba(214,51,142,.4);}
.article-body a:hover{border-bottom-color:var(--brand-hover);}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-btn);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--layer);color:var(--text);font-weight:600;}
.article-body tr:last-child td{border-bottom:none;}
.article-body code{
  background:var(--layer);padding:2px 7px;border-radius:6px;font-size:14px;color:var(--amber);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:8px;}

/* ---------- empty state ---------- */
.empty-state{
  border:1px solid var(--line);background:var(--card);border-radius:var(--r-card);
  padding:44px 28px;text-align:center;
}
.empty-state h2{font-size:22px;color:var(--text);margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

/* ---------- back entry ---------- */
.back-entry{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}

/* ---------- channel cards ---------- */
.channel-section{padding:64px 0 0;}
.section-head{margin-bottom:26px;}
.section-head h2{font-size:26px;color:var(--text);}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;}
.channel-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.channel-grid{grid-template-columns:repeat(3,1fr);}}
.channel-card{
  display:flex;flex-direction:column;gap:14px;
  border:1px solid var(--line);background:var(--card);border-radius:var(--r-card);
  padding:20px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.channel-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow);}
.channel-card img{aspect-ratio:16/9;object-fit:cover;width:100%;}
.channel-card h3{font-size:18px;color:var(--text);}
.channel-card p{font-size:14px;color:var(--muted);line-height:1.8;}
.channel-card .more{font-size:14px;color:var(--brand-hover);margin-top:auto;}

/* ---------- FAQ ---------- */
.faq-section{padding:72px 0 0;}
.faq-list{display:grid;gap:14px;max-width:820px;}
.faq-item{
  border:1px solid var(--line);border-left:3px solid var(--brand);
  background:var(--card);border-radius:0 var(--r-btn) var(--r-btn) 0;
  padding:16px 20px;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item[open]{background:var(--layer);}
.faq-item summary{
  cursor:pointer;list-style:none;font-size:16px;color:var(--text);font-weight:500;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--brand-hover);font-size:20px;line-height:1;}
.faq-item[open] summary::after{content:"−";}
.faq-item p{margin-top:12px;font-size:15px;color:var(--muted);}

/* ---------- CTA ---------- */
.cta-band{padding:72px 0 88px;}
.cta-panel{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  border-radius:24px;padding:44px 32px;box-shadow:var(--shadow);
  display:grid;gap:22px;
}
@media (min-width:768px){
  .cta-panel{padding:52px 48px;grid-template-columns:1.6fr 1fr;align-items:center;}
}
.cta-panel h2{font-size:26px;color:#fff;line-height:1.4;}
.cta-panel p{color:rgba(255,255,255,.86);font-size:15px;margin-top:10px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-onbrand{background:#fff;color:var(--brand-deep);}
.btn-onbrand:hover{background:#F7F4F9;transform:translateY(-1px);}
.btn-line{border-color:rgba(255,255,255,.6);color:#fff;}
.btn-line:hover{background:rgba(255,255,255,.14);}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:rgba(20,17,24,.9);padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:24px;}}
.footer-brand{display:flex;align-items:baseline;gap:6px;margin-bottom:14px;}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.85;max-width:340px;}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:14px;}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:var(--muted);}
.footer-col ul li a{color:var(--muted);}
.footer-col ul li a:hover{color:var(--brand-hover);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--weak);
}

@media (max-width:900px){
  .main-nav{display:none;}
  .countdown{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:56px;gap:12px;}
  .logo-mark,.logo-sub{font-size:17px;}
  .logo-badge{display:none;}
  .header-actions{gap:10px;}
}
@media (max-width:520px){
  .article-title{font-size:28px;}
  .article-body{font-size:16px;}
  .cta-panel{padding:32px 22px;border-radius:20px;}
  .back-entry .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --brand:#D6338E;
  --brand-hi:#F04BA6;
  --brand-deep:#A81E6C;
  --gold:#FFB23F;
  --mint:#2ED9B0;
  --bg:#141118;
  --layer:#1C1721;
  --layer-2:#241D2B;
  --line:rgba(255,255,255,.08);
  --line-hi:rgba(214,51,142,.45);
  --text:#F6F1F8;
  --text-2:#B4A9BC;
  --text-3:#7E7385;
  --r-card:18px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(214,51,142,.45);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--layer-2);border-style:none}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;width:100%}
.section{padding:60px 0}
.section-tight{padding:48px 0}
[id]{scroll-margin-top:80px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(20,17,24,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.logo{display:flex;align-items:center;gap:2px;font-size:18px;font-weight:700;white-space:nowrap}
.logo-mark{color:var(--text)}
.logo-sub{color:var(--brand-hi)}
.logo-badge{
  display:inline-flex;align-items:center;gap:6px;
  margin-left:8px;padding:2px 10px;
  font-size:12px;font-weight:500;color:var(--mint);
  border:1px solid rgba(46,217,176,.45);
  background:rgba(46,217,176,.12);
  border-radius:var(--r-pill);
}
.logo-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:10px}
.main-nav a{
  position:relative;font-size:15px;color:var(--text-2);
  padding:6px 0;transition:color .2s ease;
}
.main-nav a:hover{color:var(--text)}
.main-nav a.active{color:var(--text);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.countdown{
  display:flex;align-items:center;gap:3px;
  padding:4px 12px;font-size:12px;color:var(--text-2);
  border:1px solid var(--line);border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.countdown span{margin-right:4px}
.countdown b{color:var(--gold);font-weight:600}
.countdown i{color:var(--text-3);font-style:normal}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);color:var(--text);
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--line-hi);color:var(--brand-hi)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{background:var(--brand-hi);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px);background:var(--brand-deep)}
.btn-ghost{border-color:var(--brand);color:var(--brand-hi)}
.btn-ghost:hover{background:rgba(214,51,142,.12);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--brand-deep)}
.btn-light:hover{background:#FFE9F4;transform:translateY(-2px)}
.btn-sm{min-height:36px;padding:0 16px;font-size:13px}
.btn-link{
  position:relative;padding:0;min-height:auto;font-weight:500;
  color:var(--brand-hi);background:none;
}
.btn-link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;
  background:var(--brand-hi);transition:width .25s ease;
}
.btn-link:hover::after{width:100%}
.btn-arrow{transition:transform .2s ease;display:inline-block}
.btn:hover .btn-arrow{transform:translateX(4px)}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;font-size:12.5px;line-height:1.6;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--text-2);
  white-space:nowrap;
}
.badge-brand{border-color:rgba(214,51,142,.45);background:rgba(214,51,142,.12);color:#F7B9DA}
.badge-mint{border-color:rgba(46,217,176,.4);background:rgba(46,217,176,.12);color:var(--mint)}
.badge-gold{border-color:rgba(255,178,63,.4);background:rgba(255,178,63,.12);color:var(--gold)}

/* ============ 首屏 ============ */
.hero{position:relative;overflow:hidden;padding:52px 0 64px}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity:.16;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,17,24,.6) 0%,rgba(20,17,24,.92) 62%,var(--bg) 100%);
}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.hero-title{
  font-size:40px;line-height:1.25;font-weight:700;
  margin:18px 0 14px;letter-spacing:0;
}
.hero-sub{font-size:18px;color:var(--text);font-weight:500;margin-bottom:16px}
.hero-desc{font-size:15.5px;color:var(--text-2);max-width:56ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.status-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;padding-top:26px;border-top:1px solid var(--line)}

/* ============ 信息卡 ============ */
.info-card{
  background:var(--layer);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow);
}
.info-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img)}
.info-card h3{font-size:19px;font-weight:600;margin:18px 0 6px}
.info-card .info-note{font-size:13.5px;color:var(--text-3);margin-bottom:12px}
.info-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-top:1px solid var(--line);
  font-size:14.5px;color:var(--text-2);
}
.info-list li:first-child{border-top:none}
.info-list .num{
  font-size:13px;font-weight:700;color:var(--brand-hi);
  font-variant-numeric:tabular-nums;padding-top:2px;
}

/* ============ 通用标题 ============ */
.sec-head{margin-bottom:34px;max-width:760px}
.sec-head h2{font-size:30px;line-height:1.35;font-weight:600;margin-bottom:12px}
.sec-head p{font-size:15.5px;color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--brand-hi);letter-spacing:.02em;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}

/* ============ 横向图文列表 ============ */
.h-list{display:flex;flex-direction:column;gap:18px}
.h-item{
  display:grid;grid-template-columns:200px 1fr;gap:26px;align-items:center;
  background:var(--layer);border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.h-item:hover{transform:translateY(-2px);border-color:var(--line-hi);box-shadow:var(--shadow)}
.h-item img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img)}
.h-item h3{font-size:20px;font-weight:600;margin-bottom:8px}
.h-item p{font-size:14.8px;color:var(--text-2);margin-bottom:12px}
.h-item .h-tag{margin-bottom:10px;display:inline-block}

/* ============ 流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-card{
  background:linear-gradient(180deg,var(--layer-2),var(--layer));
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;position:relative;
  transition:transform .22s ease,border-color .22s ease;
}
.flow-card:hover{transform:translateY(-2px);border-color:var(--line-hi)}
.flow-card::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;
  width:3px;border-radius:0 3px 3px 0;background:var(--brand);
}
.flow-num{
  font-size:30px;font-weight:700;color:var(--brand-hi);
  font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:10px;
}
.flow-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.flow-card p{font-size:14px;color:var(--text-2)}
.flow-note{
  margin-top:24px;padding-top:22px;border-top:1px solid var(--line);
  font-size:14px;color:var(--text-3);
}

/* ============ 版本对照 ============ */
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.split h2{font-size:30px;font-weight:600;margin-bottom:14px}
.split .split-desc{font-size:15.5px;color:var(--text-2);margin-bottom:20px}
.split .split-tags{display:flex;flex-wrap:wrap;gap:10px}
.stat-table{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--layer)}
.stat-row{
  display:grid;grid-template-columns:150px 110px 1fr;gap:18px;align-items:center;
  padding:20px 24px;border-top:1px solid var(--line);
}
.stat-row:first-child{border-top:none}
.stat-row .stat-name{font-size:15.5px;font-weight:600}
.stat-row .stat-num{
  font-size:20px;font-weight:700;color:var(--gold);
  font-variant-numeric:tabular-nums;
}
.stat-row .stat-desc{font-size:14px;color:var(--text-2)}

/* ============ 提示处理 ============ */
.tip-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.tip-item{
  background:var(--layer);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;
  transition:border-color .22s ease,transform .22s ease;
}
.tip-item:hover{border-color:var(--line-hi);transform:translateY(-2px)}
.tip-item h3{font-size:16.5px;font-weight:600;margin-bottom:10px;display:flex;gap:10px;align-items:baseline}
.tip-item h3 span{font-size:13px;color:var(--brand-hi);font-variant-numeric:tabular-nums}
.tip-item p{font-size:14.5px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.6fr;gap:48px;align-items:start}
.faq-side h2{font-size:28px;font-weight:600;margin-bottom:12px}
.faq-side p{font-size:15px;color:var(--text-2);margin-bottom:22px}
.faq-item{
  background:var(--layer);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:0 14px 14px 0;padding:16px 22px;margin-bottom:14px;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:var(--line-hi);border-left-color:var(--brand-hi)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;
  gap:16px;align-items:flex-start;font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--brand-hi);font-weight:700;line-height:1.4}
.faq-item[open] summary::after{content:"–"}
.faq-item[open] summary{color:var(--brand-hi)}
.faq-item p{font-size:14.8px;color:var(--text-2);margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand);border-radius:24px;padding:40px;
  display:flex;justify-content:space-between;align-items:center;
  gap:28px;flex-wrap:wrap;
  box-shadow:0 24px 60px -30px rgba(214,51,142,.9);
}
.cta-band h2{font-size:26px;font-weight:700;color:#fff;margin-bottom:8px}
.cta-band p{font-size:15px;color:rgba(255,255,255,.86);max-width:52ch}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-actions .btn-link{color:#fff}
.cta-actions .btn-link::after{background:#fff}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:#100D14;padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px;padding-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:2px;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-col p{font-size:14px;color:var(--text-3);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a,.footer-col ul li span{
  font-size:14px;color:var(--text-2);position:relative;transition:color .2s ease;
}
.footer-col ul li a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;
  background:var(--brand-hi);transition:width .25s ease;
}
.footer-col ul li a:hover{color:var(--brand-hi)}
.footer-col ul li a:hover::after{width:100%}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .header-inner{height:56px;gap:14px}
  .logo{font-size:16px}
  .logo-badge{display:none}
  .main-nav{
    position:fixed;left:0;right:0;top:56px;bottom:0;
    background:rgba(20,17,24,.98);
    flex-direction:column;align-items:stretch;gap:0;
    padding:24px 24px 40px;margin:0;
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:opacity .25s ease,transform .25s ease;
    overflow-y:auto;
  }
  .main-nav.open{opacity:1;transform:none;pointer-events:auto}
  .main-nav a{
    font-size:20px;font-weight:600;color:var(--text);
    padding:16px 0;border-bottom:1px solid var(--line);
  }
  .main-nav a.active::after{display:none}
  .main-nav a.active{color:var(--brand-hi)}
  .countdown{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .split{grid-template-columns:1fr;gap:28px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .tip-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .hero{padding:36px 0 52px}
  .hero-title{font-size:30px}
  .hero-sub{font-size:16px}
  .sec-head h2,.split h2{font-size:24px}
  .cta-band{padding:28px 24px}
  .cta-band h2{font-size:22px}
  .h-item{grid-template-columns:1fr;gap:16px}
  .h-item img{aspect-ratio:16/9}
  .stat-row{grid-template-columns:1fr 1fr;gap:8px 14px;padding:18px}
  .stat-row .stat-desc{grid-column:1 / -1}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .flow-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .logo{font-size:15px}
}

/* roulang page: category2 */
:root{
    --brand:#D6338E;
    --brand-hover:#F04BA6;
    --brand-deep:#A81E6C;
    --gold:#FFB23F;
    --mint:#2ED9B0;
    --bg:#141118;
    --card:#1C1721;
    --card-2:#241D2B;
    --line:rgba(255,255,255,.08);
    --line-hover:rgba(214,51,142,.45);
    --text:#F6F1F8;
    --text-2:#B4A9BC;
    --text-3:#7E7385;
    --light-bg:#F7F4F9;
    --light-text:#241C2C;
    --light-text-2:#5A5163;
    --radius-card:18px;
    --radius-img:14px;
    --radius-btn:10px;
    --shadow:0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(214,51,142,.45);
    --wrap:1200px;
  }

  *,*::before,*::after{box-sizing:border-box;}

  html{scroll-behavior:smooth;}

  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
    font-size:16px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }

  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font:inherit;color:inherit;cursor:pointer;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul{list-style:none;padding:0;}

  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

  .wrap{
    max-width:var(--wrap);
    margin:0 auto;
    padding:0 20px;
  }

  /* ---------- 顶栏 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(20,17,24,.94);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:20px;
    height:64px;
  }
  .logo{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:18px;
    font-weight:700;
    letter-spacing:.2px;
    white-space:nowrap;
  }
  .logo-mark{color:var(--text);}
  .logo-sub{color:var(--brand);}
  .logo-badge{
    display:inline-flex;
    align-items:center;
    gap:5px;
    margin-left:6px;
    padding:3px 10px;
    font-size:11px;
    font-weight:500;
    color:var(--mint);
    border:1px solid rgba(46,217,176,.42);
    background:rgba(46,217,176,.1);
    border-radius:999px;
  }
  .logo-badge .dot{
    width:6px;height:6px;border-radius:50%;
    background:var(--mint);
    box-shadow:0 0 0 3px rgba(46,217,176,.16);
  }

  .main-nav{
    display:flex;
    align-items:center;
    gap:4px;
    margin-left:auto;
  }
  .main-nav a{
    position:relative;
    padding:8px 12px;
    font-size:15px;
    color:var(--text-2);
    border-bottom:2px solid transparent;
    transition:color .2s ease,border-color .2s ease;
  }
  .main-nav a:hover{color:var(--text);}
  .main-nav a.active{
    color:var(--text);
    border-bottom-color:var(--brand);
  }

  .header-actions{
    display:flex;
    align-items:center;
    gap:12px;
  }

  .countdown{
    display:inline-flex;
    align-items:center;
    gap:5px;
    padding:6px 13px;
    font-size:12px;
    color:var(--text-2);
    background:var(--card);
    border:1px solid var(--line);
    border-radius:999px;
    white-space:nowrap;
  }
  .countdown b{
    font-variant-numeric:tabular-nums;
    font-weight:600;
    color:var(--gold);
    font-size:13px;
  }
  .countdown i{font-style:normal;color:var(--text-3);}

  .nav-toggle{
    display:none;
    width:44px;height:44px;
    place-items:center;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:10px;
    color:var(--text);
    transition:border-color .2s ease,background .2s ease;
  }
  .nav-toggle:hover{border-color:var(--line-hover);}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 22px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    border:1px solid transparent;
    transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .btn-primary{
    background:var(--brand);
    color:#fff;
    box-shadow:0 12px 30px -14px rgba(214,51,142,.85);
  }
  .btn-primary:hover{background:var(--brand-hover);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(1px);}
  .btn-primary svg{transition:transform .22s ease;}
  .btn-primary:hover svg{transform:translateX(4px);}

  .btn-ghost{
    background:transparent;
    color:var(--text);
    border-color:rgba(214,51,142,.55);
  }
  .btn-ghost:hover{background:rgba(214,51,142,.12);border-color:var(--brand-hover);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(1px);}

  .btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:10px;}

  .btn-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    min-height:44px;
    font-size:14px;
    color:var(--text-2);
    border-bottom:1px solid transparent;
    transition:color .2s ease,border-color .2s ease;
  }
  .btn-link:hover{color:var(--brand-hover);border-bottom-color:var(--brand-hover);}

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    font-size:12px;
    line-height:1.6;
    border-radius:999px;
    border:1px solid var(--line);
    color:var(--text-2);
    background:rgba(255,255,255,.03);
    white-space:nowrap;
  }
  .badge-brand{color:var(--brand-hover);border-color:rgba(214,51,142,.45);background:rgba(214,51,142,.12);}
  .badge-gold{color:var(--gold);border-color:rgba(255,178,63,.42);background:rgba(255,178,63,.12);}
  .badge-mint{color:var(--mint);border-color:rgba(46,217,176,.4);background:rgba(46,217,176,.1);}

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;scroll-margin-top:80px;}
  .section-tight{padding:72px 0;}
  .section-light{background:var(--light-bg);color:var(--light-text);}
  .section-light .sec-sub{color:var(--light-text-2);}

  .sec-head{max-width:720px;margin-bottom:44px;}
  .sec-eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--brand-hover);
    margin-bottom:14px;
  }
  .sec-eyebrow::before{
    content:"";
    width:22px;height:1px;
    background:var(--brand);
    display:inline-block;
  }
  .sec-head h2{
    font-size:30px;
    line-height:1.35;
    font-weight:600;
    letter-spacing:.2px;
  }
  .sec-sub{
    margin-top:14px;
    font-size:15px;
    line-height:1.9;
    color:var(--text-2);
    max-width:52ch;
  }

  .divider{height:1px;background:var(--line);border:0;}

  /* ---------- 分类首屏 ---------- */
  .cat-hero{
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .cat-hero-bg{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
    background:var(--card-2);
  }
  .cat-hero-mask{
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(20,17,24,.74) 0%,rgba(20,17,24,.9) 58%,rgba(20,17,24,1) 100%),
               radial-gradient(120% 90% at 12% 20%,rgba(214,51,142,.35),transparent 60%);
  }
  .cat-hero-inner{
    position:relative;
    min-height:42vh;
    padding:70px 0 62px;
    display:flex;
    flex-direction:column;
    justify-content:center;
    gap:18px;
  }
  .crumb{
    font-size:13px;
    color:var(--text-3);
    display:flex;
    align-items:center;
    gap:8px;
  }
  .crumb span{color:var(--text-3);}
  .cat-hero h1{
    font-size:40px;
    line-height:1.25;
    font-weight:700;
    letter-spacing:.3px;
  }
  .cat-hero-lead{
    font-size:16px;
    line-height:1.9;
    color:var(--text-2);
    max-width:56ch;
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    margin-top:6px;
  }
  .hero-badges{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:14px;
  }

  /* ---------- 功能模块网格 ---------- */
  .mod-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;
  }
  .mod-card{
    position:relative;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:26px;
    transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
  }
  .mod-card::after{
    content:"";
    position:absolute;
    left:26px;right:26px;top:0;
    height:1px;
    background:linear-gradient(90deg,rgba(214,51,142,.6),rgba(214,51,142,0));
    opacity:0;
    transition:opacity .24s ease;
  }
  .mod-card:hover{
    transform:translateY(-2px);
    border-color:var(--line-hover);
    box-shadow:var(--shadow);
  }
  .mod-card:hover::after{opacity:1;}
  .mod-icon{
    width:48px;height:48px;
    display:grid;place-items:center;
    border-radius:14px;
    background:rgba(214,51,142,.12);
    border:1px solid rgba(214,51,142,.35);
    color:var(--brand-hover);
    margin-bottom:18px;
  }
  .mod-card h3{
    font-size:20px;
    font-weight:600;
    line-height:1.5;
    margin-bottom:10px;
  }
  .mod-card p{
    font-size:15px;
    color:var(--text-2);
    line-height:1.9;
  }

  /* ---------- 图文 + 指标 ---------- */
  .split{
    display:grid;
    grid-template-columns:1.05fr 1fr;
    gap:44px;
    align-items:center;
  }
  .figure{
    position:relative;
    border-radius:var(--radius-img);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--card-2);
  }
  .figure img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
  }
  .figure-mask{
    position:absolute;
    inset:0;
    background:linear-gradient(190deg,rgba(214,51,142,.22),rgba(20,17,24,.55));
    pointer-events:none;
  }
  .figure figcaption{
    position:absolute;
    left:16px;bottom:14px;
    font-size:12px;
    color:var(--text-2);
    background:rgba(20,17,24,.7);
    border:1px solid var(--line);
    border-radius:999px;
    padding:4px 12px;
  }
  .stat-row{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:18px;
    margin-top:30px;
    padding-top:26px;
    border-top:1px solid var(--line);
  }
  .stat b{
    display:block;
    font-size:30px;
    font-weight:700;
    line-height:1.2;
    color:var(--brand-hover);
    font-variant-numeric:tabular-nums;
  }
  .stat span{
    display:block;
    margin-top:8px;
    font-size:13px;
    line-height:1.7;
    color:var(--text-3);
  }
  .body-text{
    font-size:16px;
    line-height:1.9;
    color:var(--text-2);
    max-width:56ch;
  }
  .body-text + .body-text{margin-top:1em;}

  /* ---------- 步骤列表（浅底反转） ---------- */
  .step-list{
    border-top:1px solid rgba(36,28,44,.12);
  }
  .step-row{
    display:grid;
    grid-template-columns:96px minmax(0,1fr);
    gap:26px;
    padding:30px 0;
    border-bottom:1px solid rgba(36,28,44,.12);
  }
  .step-num{
    font-size:30px;
    font-weight:700;
    line-height:1.2;
    color:var(--brand);
    font-variant-numeric:tabular-nums;
  }
  .step-row h3{
    font-size:20px;
    font-weight:600;
    color:var(--light-text);
    margin-bottom:8px;
  }
  .step-row p{
    font-size:15px;
    line-height:1.9;
    color:var(--light-text-2);
    max-width:62ch;
  }
  .step-note{
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin-top:16px;
    font-size:13px;
    color:var(--light-text-2);
  }
  .step-note i{
    font-style:normal;
    width:6px;height:6px;border-radius:50%;
    background:var(--brand);
    display:inline-block;
  }

  /* ---------- 场景区 ---------- */
  .scene-grid{
    display:grid;
    grid-template-columns:1.25fr .85fr;
    gap:40px;
    align-items:start;
  }
  .scene-list li{
    display:grid;
    grid-template-columns:34px minmax(0,1fr);
    gap:14px;
    padding:20px 0;
    border-bottom:1px solid var(--line);
    font-size:15px;
    color:var(--text-2);
    line-height:1.9;
  }
  .scene-list li:first-child{border-top:1px solid var(--line);}
  .scene-list .idx{
    font-size:13px;
    font-weight:600;
    color:var(--brand-hover);
    font-variant-numeric:tabular-nums;
    padding-top:4px;
  }
  .side-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:28px;
  }
  .side-card h3{
    font-size:20px;
    font-weight:600;
    margin-bottom:16px;
  }
  .side-card ul li{
    position:relative;
    padding-left:18px;
    font-size:14px;
    color:var(--text-2);
    line-height:1.9;
    margin-bottom:12px;
  }
  .side-card ul li::before{
    content:"";
    position:absolute;
    left:0;top:12px;
    width:6px;height:6px;
    border-radius:50%;
    background:var(--brand);
  }
  .side-card .side-foot{
    margin-top:22px;
    padding-top:20px;
    border-top:1px solid var(--line);
  }

  /* ---------- FAQ ---------- */
  .faq-grid{
    display:grid;
    grid-template-columns:320px minmax(0,1fr);
    gap:48px;
    align-items:start;
  }
  .faq-aside p{
    font-size:15px;
    line-height:1.9;
    color:var(--text-2);
    margin-top:14px;
    max-width:34ch;
  }
  .faq-aside .btn{margin-top:22px;}
  .faq-item{
    border-left:3px solid var(--brand);
    padding-left:20px;
    margin-bottom:4px;
  }
  .faq-item + .faq-item{margin-top:6px;}
  .faq-item summary{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:18px;
    padding:18px 0;
    font-size:17px;
    font-weight:600;
    color:var(--text);
    cursor:pointer;
    list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--brand-hover);}
  .faq-item .mark{
    flex:0 0 auto;
    width:22px;height:22px;
    display:grid;place-items:center;
    border:1px solid var(--line);
    border-radius:50%;
    font-size:14px;
    font-weight:400;
    color:var(--text-2);
    transition:transform .22s ease,color .22s ease,border-color .22s ease;
    margin-top:4px;
  }
  .faq-item[open] .mark{
    transform:rotate(45deg);
    color:var(--brand-hover);
    border-color:var(--line-hover);
  }
  .faq-item[open] summary{color:var(--text);}
  .faq-item .answer{
    padding:0 0 20px;
    font-size:15px;
    line-height:1.95;
    color:var(--text-2);
    max-width:64ch;
  }

  /* ---------- CTA 横带 ---------- */
  .cta-band{
    position:relative;
    overflow:hidden;
    background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
    border-radius:24px;
    padding:52px 48px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:28px;
    box-shadow:0 30px 60px -34px rgba(214,51,142,.9);
  }
  .cta-band::after{
    content:"";
    position:absolute;
    right:-60px;top:-60px;
    width:240px;height:240px;
    border-radius:50%;
    background:rgba(255,255,255,.1);
  }
  .cta-band h2{
    font-size:26px;
    font-weight:700;
    color:#fff;
    line-height:1.4;
  }
  .cta-band p{
    margin-top:10px;
    font-size:15px;
    color:rgba(255,255,255,.86);
    max-width:46ch;
  }
  .cta-actions{
    position:relative;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:20px;
  }
  .btn-light{
    background:#fff;
    color:var(--brand-deep);
    border-radius:999px;
    padding:0 26px;
  }
  .btn-light:hover{background:#FDF3F9;transform:translateY(-1px);}
  .cta-actions .text-link{
    font-size:14px;
    color:#fff;
    border-bottom:1px solid rgba(255,255,255,.5);
    min-height:auto;
    padding-bottom:2px;
    transition:border-color .2s ease,color .2s ease;
  }
  .cta-actions .text-link:hover{border-bottom-color:#fff;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:88px;
    background:#100D13;
    border-top:1px solid var(--line);
    padding:64px 0 26px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1fr;
    gap:40px;
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:6px;
    font-size:18px;
    font-weight:700;
    margin-bottom:16px;
  }
  .footer-brand .logo-mark{color:var(--text);}
  .footer-brand .logo-sub{color:var(--brand-hover);}
  .footer-col p{
    font-size:14px;
    line-height:1.9;
    color:var(--text-2);
    max-width:36ch;
  }
  .footer-col h4{
    font-size:15px;
    font-weight:600;
    color:var(--text);
    margin-bottom:18px;
  }
  .footer-col ul li{
    font-size:14px;
    color:var(--text-2);
    margin-bottom:12px;
    line-height:1.8;
  }
  .footer-col ul a{
    transition:color .2s ease;
    border-bottom:1px solid transparent;
  }
  .footer-col ul a:hover{
    color:var(--brand-hover);
    border-bottom-color:var(--brand-hover);
  }
  .footer-bottom{
    margin-top:52px;
    padding-top:24px;
    border-top:1px solid var(--line);
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:12px;
    font-size:13px;
    color:var(--text-3);
    line-height:1.8;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .nav-toggle{display:grid;}

    .main-nav{
      position:fixed;
      left:0;right:0;
      top:64px;bottom:0;
      margin:0;
      padding:20px 20px 96px;
      flex-direction:column;
      align-items:stretch;
      gap:0;
      background:#141118;
      border-top:1px solid var(--line);
      transform:translateY(-10px);
      opacity:0;
      visibility:hidden;
      transition:transform .24s ease,opacity .24s ease,visibility .24s ease;
      overflow-y:auto;
      z-index:55;
    }
    .main-nav.open{
      transform:none;
      opacity:1;
      visibility:visible;
    }
    .main-nav a{
      font-size:19px;
      padding:18px 0 18px 14px;
      border-bottom:1px solid var(--line);
      border-left:3px solid transparent;
    }
    .main-nav a.active{
      color:var(--brand-hover);
      border-left-color:var(--brand);
      border-bottom-color:var(--line);
    }
    .header-inner{height:56px;gap:12px;}
    .logo{font-size:16px;}
    .logo-badge{display:none;}
    .countdown{display:none;}

    .section{padding:64px 0;}
    .section-tight{padding:56px 0;}
    .split{grid-template-columns:1fr;gap:32px;}
    .scene-grid{grid-template-columns:1fr;gap:32px;}
    .faq-grid{grid-template-columns:1fr;gap:32px;}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
    .cat-hero h1{font-size:34px;}
    .cat-hero-inner{padding:54px 0 48px;}
  }

  @media (max-width:768px){
    .mod-grid{grid-template-columns:1fr;}
    .stat-row{grid-template-columns:1fr;gap:20px;}
    .step-row{grid-template-columns:60px minmax(0,1fr);gap:16px;padding:24px 0;}
    .step-num{font-size:24px;}
    .cta-band{padding:36px 24px;border-radius:20px;}
    .cta-band h2{font-size:22px;}
    .sec-head h2{font-size:24px;}
    .sec-head{margin-bottom:32px;}
  }

  @media (max-width:520px){
    body{font-size:15px;}
    .cat-hero h1{font-size:30px;}
    .cat-hero-lead{font-size:15px;}
    .hero-actions{gap:10px;}
    .hero-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;}
    .site-footer{margin-top:64px;padding-top:48px;}
    .btn{padding:0 18px;}
    .mod-card{padding:22px;}
  }

/* roulang page: category3 */
:root{
    --primary:#D6338E;
    --primary-hover:#F04BA6;
    --primary-deep:#A81E6C;
    --amber:#FFB23F;
    --mint:#2ED9B0;
    --bg:#141118;
    --surface:#1C1721;
    --surface-2:#241D2B;
    --line:rgba(255,255,255,.08);
    --line-hover:rgba(214,51,142,.45);
    --text:#F6F1F8;
    --text-2:#B4A9BC;
    --text-3:#7E7385;
    --light-bg:#F7F4F9;
    --light-text:#241C2C;
    --light-text-2:#5A5163;
    --radius-card:18px;
    --radius-img:14px;
    --radius-btn:10px;
    --shadow-card:0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(214,51,142,.45);
    --wrap:1200px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:0}
  p{margin:0}
  a{color:inherit;text-decoration:none;transition:color .2s ease}
  img{display:block;max-width:100%}
  ul,ol{margin:0;padding:0;list-style:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px}

  .wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
  @media (min-width:768px){.wrap{padding:0 32px}}

  /* ============ Header ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(20,17,24,.94);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;gap:18px;height:64px}
  .logo{display:flex;align-items:center;gap:6px;font-size:18px;font-weight:700;white-space:nowrap}
  .logo-mark{color:var(--primary-hover)}
  .logo-sub{color:var(--text)}
  .logo-badge{
    display:inline-flex;align-items:center;gap:6px;
    margin-left:8px;padding:3px 10px;border-radius:999px;
    font-size:12px;font-weight:400;color:var(--mint);
    border:1px solid rgba(46,217,176,.35);
    background:rgba(46,217,176,.08);
  }
  .logo-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 3px rgba(46,217,176,.15)}
  .main-nav{display:flex;align-items:center;gap:26px;margin:0 auto}
  .main-nav a{position:relative;font-size:15px;color:var(--text-2);padding:20px 0;min-height:44px;display:inline-flex;align-items:center}
  .main-nav a:hover{color:var(--text)}
  .main-nav a.active{color:var(--text);font-weight:600}
  .main-nav a.active::after{
    content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;
    background:var(--primary);border-radius:2px;
  }
  .header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
  .countdown{
    display:flex;align-items:center;gap:6px;
    padding:6px 12px;border-radius:999px;
    font-size:12px;color:var(--text-2);
    background:var(--surface);border:1px solid var(--line);
    font-variant-numeric:tabular-nums;
  }
  .countdown b{font-size:13px;font-weight:600;color:var(--text)}
  .countdown i{font-style:normal;color:var(--text-3)}
  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:var(--radius-btn);
    border:1px solid var(--line);color:var(--text);
  }
  .nav-toggle:hover{border-color:var(--line-hover);color:var(--primary-hover)}

  /* ============ Buttons ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:12px 22px;
    border-radius:var(--radius-btn);
    font-size:14px;font-weight:600;
    border:1px solid transparent;
    transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .btn-sm{padding:9px 16px;font-size:13px;min-height:38px}
  .btn-primary{background:var(--primary);color:#fff}
  .btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-card)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-primary .arrow{transition:transform .2s ease}
  .btn-primary:hover .arrow{transform:translateX(4px)}
  .btn-ghost{border-color:rgba(214,51,142,.5);color:var(--primary-hover);background:transparent}
  .btn-ghost:hover{background:rgba(214,51,142,.12);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-light{background:#fff;color:var(--primary-deep)}
  .btn-light:hover{background:#fdf2f8;transform:translateY(-1px);box-shadow:0 18px 40px -22px rgba(0,0,0,.5)}

  .link-underline{
    position:relative;display:inline-flex;align-items:center;gap:6px;
    min-height:44px;font-size:14px;font-weight:600;color:var(--primary-hover);
  }
  .link-underline::after{
    content:"";position:absolute;left:0;right:0;bottom:8px;height:1px;
    background:currentColor;transform:scaleX(0);transform-origin:left;
    transition:transform .25s ease;
  }
  .link-underline:hover::after{transform:scaleX(1)}

  /* ============ Chips ============ */
  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;
    font-size:12px;color:var(--text-2);
    background:var(--surface);border:1px solid var(--line);
    white-space:nowrap;
  }
  .chip-mint{color:var(--mint);border-color:rgba(46,217,176,.35);background:rgba(46,217,176,.08)}
  .chip-amber{color:var(--amber);border-color:rgba(255,178,63,.35);background:rgba(255,178,63,.1)}
  .chip-primary{color:var(--primary-hover);border-color:var(--line-hover);background:rgba(214,51,142,.1)}

  /* ============ Sections ============ */
  .section{padding:88px 0}
  .section-head h2{font-size:30px;line-height:1.35}
  .section-head p{margin-top:12px;color:var(--text-2);font-size:16px;max-width:64ch}
  .rule{height:1px;background:var(--line);border:0;margin:0}

  /* ============ Hero ============ */
  .page-hero{
    position:relative;
    padding:56px 0 80px;
    border-bottom:1px solid var(--line);
    background:
      radial-gradient(900px 420px at 84% -12%, rgba(214,51,142,.24), transparent 62%),
      radial-gradient(700px 360px at 4% 110%, rgba(255,178,63,.08), transparent 60%);
  }
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
  .breadcrumb a:hover{color:var(--primary-hover)}
  .breadcrumb .sep{color:var(--text-3)}
  .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:36px;align-items:start;margin-top:26px}
  .eyebrow{
    display:inline-block;padding:5px 12px;border-radius:999px;
    font-size:13px;color:var(--primary-hover);
    border:1px solid var(--line-hover);background:rgba(214,51,142,.1);
  }
  h1{font-size:44px;line-height:1.25;font-weight:700;margin-top:16px}
  .hero-lead{margin-top:16px;font-size:18px;color:var(--text);max-width:34ch}
  .hero-desc{margin-top:14px;font-size:16px;color:var(--text-2);max-width:56ch}
  .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

  .steps-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:28px;
    box-shadow:var(--shadow-card);
  }
  .steps-card h2{font-size:20px}
  .steps-card .steps-note{margin-top:8px;font-size:14px;color:var(--text-3)}
  .step-list{margin-top:22px}
  .step-item{position:relative;padding-left:50px;padding-bottom:24px}
  .step-item:last-child{padding-bottom:0}
  .step-item::before{
    content:attr(data-step);
    position:absolute;left:0;top:2px;
    width:34px;height:34px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:600;color:var(--primary-hover);
    background:rgba(214,51,142,.12);border:1px solid var(--line-hover);
    font-variant-numeric:tabular-nums;
  }
  .step-item::after{
    content:"";position:absolute;left:17px;top:44px;bottom:6px;width:1px;background:var(--line);
  }
  .step-item:last-child::after{display:none}
  .step-item h3{font-size:16px;margin-bottom:4px}
  .step-item p{font-size:14px;color:var(--text-2);line-height:1.8}

  /* ============ Capability list ============ */
  .cap-list{border-top:1px solid var(--line);margin-top:34px}
  .cap-item{
    display:grid;grid-template-columns:64px 1fr auto;gap:22px;align-items:center;
    padding:22px 6px;border-bottom:1px solid var(--line);
    transition:background .2s ease,padding .2s ease;
  }
  .cap-item:hover{background:var(--surface);padding-left:14px;padding-right:14px}
  .cap-num{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:.08em}
  .cap-body h3{font-size:18px;margin-bottom:4px}
  .cap-body p{font-size:15px;color:var(--text-2)}

  /* ============ Light section ============ */
  .section-light{background:var(--light-bg);color:var(--light-text)}
  .section-light h2{color:var(--light-text)}
  .light-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:48px;align-items:start}
  .light-grid .intro{margin-top:14px;font-size:16px;color:var(--light-text-2)}
  .stat-block{margin-top:30px;display:flex;flex-direction:column;gap:24px}
  .stat-item{border-left:3px solid var(--primary);padding-left:16px}
  .stat-item b{display:block;font-size:36px;font-weight:700;line-height:1.15;color:var(--primary-deep);font-variant-numeric:tabular-nums}
  .stat-item span{font-size:14px;color:var(--light-text-2)}
  .quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .quote-card{
    background:#fff;border:1px solid rgba(36,28,44,.08);border-radius:var(--radius-card);
    padding:24px;box-shadow:0 16px 34px -26px rgba(36,28,44,.45);
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .quote-card:hover{transform:translateY(-2px);box-shadow:0 22px 40px -26px rgba(36,28,44,.5)}
  .quote-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
  .quote-avatar{width:46px;height:46px;border-radius:12px;object-fit:cover;background:var(--surface-2);flex:0 0 auto}
  .quote-name{font-size:14px;font-weight:600;color:var(--light-text)}
  .quote-meta{font-size:12px;color:var(--light-text-2)}
  .quote-card p{font-size:15px;color:var(--light-text-2);line-height:1.85}

  /* ============ Cases ============ */
  .cases-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:52px;align-items:start}
  .cases-aside p{margin-top:14px;font-size:16px;color:var(--text-2)}
  .cases-figure{margin-top:26px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);background:var(--surface-2)}
  .cases-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
  .case-item{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:24px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .case-item + .case-item{margin-top:16px}
  .case-item:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-card)}
  .case-item h3{font-size:18px;margin-bottom:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
  .case-item p{font-size:15px;color:var(--text-2)}
  .case-tag{font-size:12px;color:var(--text-3);border-left:1px solid var(--line);padding-left:10px;font-weight:400}

  /* ============ Tiers ============ */
  .tier-list{margin-top:34px;display:flex;flex-direction:column;gap:16px}
  .tier-row{
    display:grid;grid-template-columns:.85fr 1.25fr 1.35fr auto;gap:26px;align-items:center;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .tier-row:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-card)}
  .tier-featured{background:var(--surface-2);border-color:rgba(255,178,63,.55);box-shadow:0 20px 44px -30px rgba(255,178,63,.55)}
  .tier-name{font-size:18px;font-weight:600;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
  .tier-desc{font-size:14px;color:var(--text-2)}
  .tier-points li{position:relative;padding-left:16px;font-size:14px;color:var(--text-2);margin-bottom:4px}
  .tier-points li::before{
    content:"";position:absolute;left:0;top:.72em;
    width:5px;height:5px;border-radius:50%;background:var(--primary);
  }
  .tier-note{margin-top:18px;font-size:13px;color:var(--text-3)}

  /* ============ FAQ ============ */
  .faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:52px;align-items:start}
  .faq-aside p{margin-top:14px;font-size:16px;color:var(--text-2);max-width:32ch}
  .faq-aside .btn{margin-top:24px}
  .faq-item{
    border-left:3px solid var(--primary);
    border-bottom:1px solid var(--line);
    padding-left:18px;
  }
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 0;font-size:17px;font-weight:600;color:var(--text);
    cursor:pointer;list-style:none;min-height:44px;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{content:"＋";color:var(--primary-hover);font-size:18px;line-height:1;transition:transform .2s ease}
  .faq-item[open] summary::after{content:"－"}
  .faq-item[open] summary{color:var(--primary-hover)}
  .faq-item p{padding:0 0 20px;font-size:15px;color:var(--text-2);max-width:68ch}

  /* ============ CTA ============ */
  .cta-panel{
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    border-radius:24px;
    padding:56px 48px;
    text-align:center;
    box-shadow:0 28px 64px -34px rgba(214,51,142,.75);
  }
  .cta-panel h2{font-size:32px;line-height:1.35;color:#fff}
  .cta-panel p{margin:16px auto 0;font-size:16px;color:rgba(255,255,255,.86);max-width:60ch}
  .cta-actions{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;align-items:center;margin-top:28px}
  .cta-panel .link-underline{color:#fff}

  /* ============ Footer ============ */
  .site-footer{border-top:1px solid var(--line);background:var(--surface);padding:64px 0 28px;margin-top:0}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
  .footer-brand{display:flex;align-items:center;gap:4px;font-size:18px;font-weight:700;margin-bottom:14px}
  .footer-col p{font-size:14px;color:var(--text-2);max-width:34ch}
  .footer-col h4{font-size:15px;margin-bottom:14px;color:var(--text)}
  .footer-col li{margin-bottom:10px;font-size:14px;color:var(--text-2)}
  .footer-col a{font-size:14px;color:var(--text-2)}
  .footer-col a:hover{color:var(--primary-hover);text-decoration:underline;text-underline-offset:4px}
  .footer-bottom{
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    border-top:1px solid var(--line);margin-top:44px;padding-top:20px;
    font-size:13px;color:var(--text-3);
  }

  /* ============ Responsive ============ */
  @media (max-width:1024px){
    .hero-grid{grid-template-columns:1fr;gap:28px}
    .light-grid{grid-template-columns:1fr;gap:36px}
    .cases-grid{grid-template-columns:1fr;gap:32px}
    .faq-grid{grid-template-columns:1fr;gap:32px}
    .tier-row{grid-template-columns:1fr 1fr;gap:20px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .section{padding:76px 0}
  }
  @media (max-width:900px){
    .header-inner{height:56px}
    .logo{font-size:16px}
    .logo-badge{display:none}
    .countdown{display:none}
    .nav-toggle{display:inline-flex}
    .main-nav{
      position:fixed;left:0;right:0;top:56px;bottom:0;
      margin:0;padding:20px 20px 96px;
      flex-direction:column;align-items:stretch;gap:0;
      background:var(--bg);border-top:1px solid var(--line);
      transform:translateX(100%);transition:transform .3s ease;
      overflow-y:auto;z-index:55;
    }
    body.nav-open .main-nav{transform:translateX(0)}
    .main-nav a{font-size:20px;font-weight:600;padding:18px 0;border-bottom:1px solid var(--line);color:var(--text)}
    .main-nav a.active::after{display:none}
    .main-nav a.active{color:var(--primary-hover)}
    body.nav-open{overflow:hidden}
  }
  @media (max-width:640px){
    .section{padding:58px 0}
    h1{font-size:30px}
    .hero-lead{font-size:17px;max-width:none}
    .section-head h2{font-size:24px}
    .page-hero{padding:36px 0 60px}
    .cap-item{grid-template-columns:1fr;gap:10px;padding:20px 4px}
    .cap-item:hover{padding-left:4px;padding-right:4px}
    .quote-grid{grid-template-columns:1fr}
    .tier-row{grid-template-columns:1fr;padding:22px}
    .cta-panel{padding:40px 22px;border-radius:20px}
    .cta-panel h2{font-size:24px}
    .footer-grid{grid-template-columns:1fr;gap:26px}
    .stat-item b{font-size:30px}
  }