/* roulang page: index */
:root{
  --ink:#141726;
  --ink-2:#3c4159;
  --muted:#6b7086;
  --line:#e6e8f0;
  --line-2:#d9dcea;
  --bg:#f6f7fb;
  --surface:#ffffff;
  --brand:#5a3ff0;
  --brand-dark:#432bd6;
  --brand-soft:#eeeaff;
  --accent:#ff6b3d;
  --accent-2:#19c2a8;
  --radius-xs:8px;
  --radius-s:12px;
  --radius:18px;
  --radius-l:28px;
  --shadow-s:0 2px 10px rgba(20,23,38,.06);
  --shadow:0 16px 38px rgba(20,23,38,.09);
  --shadow-l:0 30px 70px rgba(20,23,38,.16);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:28px;height:28px;border-radius:10px;
  background:conic-gradient(from 200deg,#5a3ff0,#ff6b3d,#19c2a8,#5a3ff0);
  box-shadow:0 4px 12px rgba(90,63,240,.32);
}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.06em}
.brand-sub{font-size:12px;color:var(--muted);padding-left:10px;border-left:1px solid var(--line-2)}
.nav{display:flex;align-items:center;gap:6px}
.nav-link{
  padding:9px 16px;border-radius:999px;font-size:15px;color:var(--ink-2);
  transition:background .2s,color .2s,box-shadow .2s;white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand)}
.nav-link.is-active{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(90,63,240,.28)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:13px;
  background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.2s}

/* ---------- hero ---------- */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(16,14,42,.9),rgba(45,26,96,.74)),url("/assets/images/0ee1783edf013d33.jpg");
  background-size:cover;background-position:center;
  padding:104px 0 108px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 340px at 20% 8%,rgba(90,63,240,.52),transparent 68%),
             radial-gradient(520px 300px at 88% 92%,rgba(25,194,168,.32),transparent 70%);
}
.hero-inner{position:relative;z-index:2;max-width:900px;margin:0 auto;text-align:center}
.hero-eyebrow{
  display:inline-block;margin:0 0 22px;padding:7px 16px;border-radius:999px;font-size:13px;letter-spacing:.18em;
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.28);
}
.hero h1{
  font-size:clamp(28px,4.2vw,46px);line-height:1.32;letter-spacing:-.015em;
  text-shadow:0 6px 30px rgba(0,0,0,.28);
}
.hero-lead{
  margin:22px auto 0;max-width:740px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:36px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15.5px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,color .2s;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 16px 34px rgba(90,63,240,.34)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 20px 42px rgba(90,63,240,.42)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-2)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 16px 34px rgba(255,107,61,.32)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(255,107,61,.4)}

/* ---------- metrics ---------- */
.metrics{background:#fff;border-bottom:1px solid var(--line)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:30px 20px;text-align:center;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric b{display:block;font-size:30px;font-weight:800;color:var(--brand);letter-spacing:-.02em}
.metric span{display:block;margin-top:4px;font-size:14px;color:var(--muted)}

/* ---------- section base ---------- */
.section{padding:78px 0}
.section--alt{background:#fff}
.section--tint{background:linear-gradient(180deg,#f9f8ff,#f6f7fb)}
.section-head{max-width:740px;margin-bottom:42px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--brand);
  text-transform:uppercase;
}
.section-head h2{font-size:clamp(23px,3vw,33px);margin:12px 0 14px}
.section-head p{color:var(--muted);font-size:16px}

/* ---------- grid ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;
  box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s,border-color .25s;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d5cfff}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.card-icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;color:#fff;margin-bottom:18px;
  background:linear-gradient(135deg,var(--brand),#8a6bff);
}
.card:nth-child(2) .card-icon{background:linear-gradient(135deg,var(--accent),#ff9a5c)}
.card:nth-child(3) .card-icon{background:linear-gradient(135deg,var(--accent-2),#4ad6c2)}

/* ---------- channel / media card ---------- */
.media-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column;
}
.media-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.media-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media-body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.media-body h3{font-size:19px;margin-bottom:10px}
.media-body p{color:var(--muted);font-size:15px;flex:1}
.card-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:14.5px;font-weight:700;color:var(--brand);transition:gap .2s,color .2s;
}
.card-link:hover{gap:11px;color:var(--brand-dark)}

/* ---------- scheme cards ---------- */
.scheme-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s;
}
.scheme-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.scheme-swatches{display:flex;height:100px}
.scheme-swatches span{flex:1}
.scheme-body{padding:20px 22px 24px}
.scheme-body h3{font-size:17px;margin-bottom:8px}
.scheme-body p{font-size:14.5px;color:var(--muted)}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12.5px;
  background:var(--brand-soft);color:var(--brand);font-weight:600;
}
.chip--warm{background:#fff0e9;color:#d1471a}
.chip--cool{background:#e6f8f5;color:#0d8a78}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 24px 28px;box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s;
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--accent);margin-bottom:14px;
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{color:var(--muted);font-size:14.6px}

/* ---------- tool list ---------- */
.tool-panel{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);
}
.tool-panel img{width:100%;height:100%;min-height:340px;object-fit:cover}
.tool-content{padding:44px 42px}
.tool-list{margin-top:24px;display:grid;gap:16px}
.tool-list li{
  display:flex;gap:14px;padding:16px 18px;border-radius:var(--radius-s);
  background:#fafaff;border:1px solid var(--line);
}
.tool-list b{display:block;font-size:15.5px;margin-bottom:3px}
.tool-list small{color:var(--muted);font-size:14px;line-height:1.7;display:block}
.tool-dot{
  flex-shrink:0;width:10px;height:10px;margin-top:9px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--accent));
}

/* ---------- cases ---------- */
.case-card{
  border-radius:var(--radius-l);overflow:hidden;position:relative;min-height:320px;display:flex;align-items:flex-end;
  border:1px solid var(--line);box-shadow:var(--shadow);color:#fff;
}
.case-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.case-card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(16,14,42,.1) 20%,rgba(16,14,42,.86));
}
.case-body{position:relative;z-index:2;padding:34px 32px}
.case-body h3{font-size:21px;margin-bottom:10px}
.case-body p{color:rgba(255,255,255,.85);font-size:15px}
.case-tag{
  display:inline-block;margin-bottom:14px;padding:5px 13px;border-radius:999px;font-size:12.5px;
  background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.34);
}

/* ---------- quotes ---------- */
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;
  box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column;
}
.quote:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.quote p{font-size:15.4px;color:var(--ink-2);flex:1}
.quote-author{display:flex;align-items:center;gap:12px;margin-top:22px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,#8a6bff,#5a3ff0);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.quote-author b{display:block;font-size:14.5px}
.quote-author small{color:var(--muted);font-size:13px}

/* ---------- updates list ---------- */
.update-list{display:grid;gap:14px}
.update-item{
  display:grid;grid-template-columns:118px 1fr auto;gap:22px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px;
  box-shadow:var(--shadow-s);transition:transform .22s,box-shadow .22s,border-color .22s;
}
.update-item:hover{transform:translateX(6px);box-shadow:var(--shadow);border-color:#d5cfff}
.update-date{font-size:13.5px;font-weight:700;color:var(--brand);letter-spacing:.04em}
.update-item h3{font-size:17px;margin-bottom:5px}
.update-item p{color:var(--muted);font-size:14.4px}
.update-tag{font-size:12.5px;padding:5px 13px;border-radius:999px;background:#f1f2f8;color:var(--ink-2);white-space:nowrap}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:6px 26px;
  box-shadow:var(--shadow-s);transition:border-color .22s,box-shadow .22s;
}
.faq-item[open]{border-color:#d5cfff;box-shadow:var(--shadow)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:20px 0;font-size:16.5px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--brand);transition:transform .22s;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 0 22px;color:var(--muted);font-size:15.2px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-l);color:#fff;padding:64px 56px;
  background-image:linear-gradient(110deg,rgba(18,15,50,.92),rgba(66,38,128,.78)),url("/assets/images/f8394ebbb2192232.jpg");
  background-size:cover;background-position:center;box-shadow:var(--shadow-l);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 260px at 84% 18%,rgba(255,107,61,.36),transparent 70%);
}
.cta-inner{position:relative;z-index:2;max-width:660px}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:16px}
.cta-band p{color:rgba(255,255,255,.86);font-size:16.4px;margin-bottom:30px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{background:#111327;color:#c6c9dd;margin-top:0;padding-top:60px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:46px}
.footer-brand .brand-name{color:#fff;font-size:21px;margin-bottom:14px}
.footer-brand p{font-size:14.4px;color:#9ba0bd;line-height:1.85}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col li{margin-bottom:10px;font-size:14.2px;color:#9ba0bd}
.footer-col a{color:#c6c9dd;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;font-size:13.4px;color:#83879f;
}
.footer-bottom .wrap{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .tool-panel{grid-template-columns:1fr}
  .tool-panel img{min-height:260px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-link{padding:9px 12px;font-size:14.5px}
}
@media (max-width:820px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line)}
  .update-item{grid-template-columns:1fr;gap:10px}
  .update-item:hover{transform:none}
  .nav-toggle{display:flex}
  .nav{
    position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--line);padding:14px 20px 20px;
    box-shadow:var(--shadow);display:none;
  }
  .nav.is-open{display:flex}
  .nav-link{padding:13px 16px;border-radius:12px;text-align:left}
}
@media (max-width:520px){
  .wrap{padding:0 18px}
  .hero{padding:76px 0 80px}
  .hero-lead{font-size:15.6px}
  .section{padding:58px 0}
  .grid-2,.grid-3,.grid-4,.steps{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .brand-sub{display:none}
  .tool-content{padding:32px 24px}
  .cta-band{padding:44px 26px}
  .faq-item{padding:4px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom .wrap{flex-direction:column}
}

/* roulang page: category1 */
:root{
 --ink:#141726;
 --ink-2:#3c4159;
 --muted:#6b7086;
 --line:#e6e8f0;
 --line-2:#d9dcea;
 --bg:#f6f7fb;
 --surface:#ffffff;
 --brand:#5a3ff0;
 --brand-dark:#432bd6;
 --brand-soft:#eeeaff;
 --accent:#ff6b3d;
 --accent-2:#19c2a8;
 --radius-xs:8px;
 --radius-s:12px;
 --radius:18px;
 --radius-l:28px;
 --shadow-s:0 2px 10px rgba(20,23,38,.06);
 --shadow:0 16px 38px rgba(20,23,38,.09);
 --shadow-l:0 30px 70px rgba(20,23,38,.16);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.4;font-weight:800}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
:focus-visible{outline:3px solid rgba(90,63,240,.55);outline-offset:2px;border-radius:6px}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.92);
 -webkit-backdrop-filter:blur(14px);
 backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px;position:relative}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
 width:28px;height:28px;border-radius:10px;
 background:conic-gradient(from 200deg,#5a3ff0,#ff6b3d,#19c2a8,#5a3ff0);
 box-shadow:0 4px 12px rgba(90,63,240,.32);
}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.06em}
.brand-sub{font-size:12px;color:var(--muted);padding-left:10px;border-left:1px solid var(--line-2)}
.nav{display:flex;align-items:center;gap:6px}
.nav-link{
 padding:9px 16px;border-radius:999px;font-size:15px;color:var(--ink-2);
 transition:background .2s,color .2s,box-shadow .2s;white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand)}
.nav-link.is-active{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(90,63,240,.28)}
.nav-toggle{
 display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:13px;
 background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.2s}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:999px;font-size:15.5px;font-weight:700;
 border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,color .2s;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 16px 34px rgba(90,63,240,.34)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 20px 42px rgba(90,63,240,.42)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 16px 34px rgba(255,107,61,.32)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(255,107,61,.4)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-2)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14.5px}

/* ---------- page hero ---------- */
.page-hero{
 position:relative;color:#fff;overflow:hidden;
 padding:74px 0 82px;
 background-image:linear-gradient(115deg,rgba(16,14,42,.9),rgba(46,26,100,.74)),url("/assets/images/3513f42a00c50878.jpg");
 background-size:cover;background-position:center;
}
.page-hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:radial-gradient(620px 320px at 14% 6%,rgba(90,63,240,.5),transparent 68%),
 radial-gradient(480px 280px at 88% 96%,rgba(25,194,168,.3),transparent 72%);
}
.page-hero .wrap{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.7);transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{opacity:.55}
.page-hero h1{font-size:clamp(26px,3.6vw,42px);letter-spacing:-.01em;text-shadow:0 6px 28px rgba(0,0,0,.3);max-width:22em}
.page-hero-lead{margin-top:20px;max-width:780px;font-size:16.5px;line-height:1.92;color:rgba(255,255,255,.87)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag{
 display:inline-flex;align-items:center;padding:7px 15px;border-radius:999px;font-size:13.5px;
 background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);color:#fff;
 transition:background .2s,border-color .2s;
}
.tag:hover{background:rgba(255,255,255,.22)}
.tag--solid{background:var(--brand-soft);color:var(--brand);border-color:transparent;font-weight:700}
.tag--solid:hover{background:#e2dbff}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
.hero-stat{
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
 border-radius:var(--radius);padding:18px 20px;transition:background .25s,transform .25s;
}
.hero-stat:hover{background:rgba(255,255,255,.17);transform:translateY(-3px)}
.hero-stat b{display:block;font-size:26px;font-weight:800;letter-spacing:.01em}
.hero-stat span{display:block;margin-top:4px;font-size:13.5px;color:rgba(255,255,255,.72)}

/* ---------- section base ---------- */
.section{padding:76px 0}
.section--alt{background:#fff}
.section--tint{background:linear-gradient(180deg,#f9f8ff,#f6f7fb)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
 display:inline-block;font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--brand);
}
.section-head h2{font-size:clamp(23px,3vw,33px);margin:12px 0 14px}
.section-head p{color:var(--muted);font-size:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

/* ---------- generic card ---------- */
.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;
 box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s,border-color .25s;
 display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d5cfff}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.card-icon{
 width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
 font-size:18px;font-weight:800;color:#fff;margin-bottom:18px;
 background:linear-gradient(135deg,var(--brand),#8a6bff);
}
.grid-4 .card:nth-child(2) .card-icon{background:linear-gradient(135deg,var(--accent),#ff9a5c)}
.grid-4 .card:nth-child(3) .card-icon{background:linear-gradient(135deg,var(--accent-2),#4ad6c2)}
.grid-4 .card:nth-child(4) .card-icon{background:linear-gradient(135deg,#2b3450,#5c6a92)}

/* ---------- scene card ---------- */
.scene-card{position:relative;overflow:hidden}
.scene-card .scene-list{margin-top:14px;display:grid;gap:8px}
.scene-card .scene-list li{
 position:relative;padding-left:16px;font-size:14.5px;color:var(--ink-2);
}
.scene-card .scene-list li::before{
 content:"";position:absolute;left:0;top:.65em;width:6px;height:6px;border-radius:50%;
 background:var(--brand);opacity:.7;
}

/* ---------- scheme cards ---------- */
.scheme-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.scheme-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
 box-shadow:var(--shadow-s);display:flex;flex-direction:column;
 transition:transform .28s,box-shadow .28s,border-color .28s;
}
.scheme-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#d5cfff}
.scheme-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:#e9ebf3}
.scheme-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scheme-card:hover .scheme-media img{transform:scale(1.06)}
.scheme-media::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(20,23,38,.05),rgba(20,23,38,.42));
}
.scheme-badge{
 position:absolute;z-index:2;top:14px;left:14px;
 padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.04em;
 background:rgba(255,255,255,.94);color:var(--brand);box-shadow:var(--shadow-s);
}
.scheme-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.scheme-body h3{font-size:18px;margin-bottom:8px}
.scheme-body p{color:var(--muted);font-size:14.5px;flex:1}
.swatches{display:flex;gap:8px;margin:16px 0 14px}
.swatch{
 width:32px;height:32px;border-radius:10px;
 box-shadow:inset 0 0 0 1px rgba(20,23,38,.09);
 transition:transform .2s;
}
.swatch:hover{transform:translateY(-3px)}
.scheme-meta{
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
 border-top:1px solid var(--line);padding-top:13px;font-size:13px;color:var(--muted);
}
.scheme-meta strong{color:var(--ink-2);font-weight:700}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.split-media{
 border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3;background:#e9ebf3;
}
.split-media img{width:100%;height:100%;object-fit:cover}
.split h2{font-size:clamp(23px,3vw,32px);margin:12px 0 16px}
.split p{color:var(--muted);font-size:15.5px}
.ratio-bar{display:flex;height:14px;border-radius:999px;overflow:hidden;margin:24px 0 16px}
.ratio-bar span{display:block;height:100%}
.ratio-legend{display:grid;gap:12px;margin-bottom:22px}
.ratio-legend div{display:flex;align-items:center;gap:12px;font-size:14.5px;color:var(--ink-2)}
.ratio-legend i{width:14px;height:14px;border-radius:5px;display:inline-block;flex-shrink:0}
.tick-list{display:grid;gap:12px;margin-top:6px}
.tick-list li{
 position:relative;padding-left:30px;font-size:15px;color:var(--ink-2);line-height:1.8;
}
.tick-list li::before{
 content:"";position:absolute;left:0;top:.42em;width:18px;height:18px;border-radius:6px;
 background:var(--brand-soft);box-shadow:inset 0 0 0 1px rgba(90,63,240,.25);
}
.tick-list li::after{
 content:"";position:absolute;left:6px;top:.86em;width:6px;height:3px;border-left:2px solid var(--brand);
 border-bottom:2px solid var(--brand);transform:rotate(-45deg);
}

/* ---------- material cards ---------- */
.material-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s}
.material-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.material-card h3{font-size:17.5px;margin-bottom:10px}
.material-card p{color:var(--muted);font-size:14.8px}
.material-card .material-tag{
 display:inline-block;margin-bottom:14px;padding:5px 12px;border-radius:999px;
 font-size:12.5px;font-weight:700;color:var(--brand);background:var(--brand-soft);
}

/* ---------- resource rows ---------- */
.row-list{display:grid;gap:14px}
.row-item{
 display:grid;grid-template-columns:52px 1fr auto;gap:18px;align-items:center;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;
 box-shadow:var(--shadow-s);transition:transform .22s,box-shadow .22s,border-color .22s;
}
.row-item:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:#d5cfff}
.row-num{
 width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
 font-weight:800;font-size:16px;color:#fff;background:linear-gradient(135deg,var(--brand),#8a6bff);
}
.row-item h3{font-size:17px;margin-bottom:5px}
.row-item p{color:var(--muted);font-size:14.5px}
.row-item .row-meta{font-size:13px;color:var(--muted);white-space:nowrap}

/* ---------- checklist panel ---------- */
.check-panel{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
 padding:40px 38px;box-shadow:var(--shadow);
}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 34px;margin-top:26px}
.check-item{display:flex;gap:14px;align-items:flex-start}
.check-item .dot{
 flex-shrink:0;width:26px;height:26px;border-radius:9px;margin-top:3px;
 background:var(--brand-soft);display:flex;align-items:center;justify-content:center;
 font-size:13px;font-weight:800;color:var(--brand);
}
.check-item h4{font-size:16px;margin-bottom:6px}
.check-item p{color:var(--muted);font-size:14.5px}

/* ---------- updates ---------- */
.update-list{display:grid;gap:16px}
.update-item{
 display:grid;grid-template-columns:112px 1fr;gap:22px;align-items:start;
 padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-s);transition:box-shadow .22s,transform .22s;
}
.update-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.update-date{
 font-size:13px;font-weight:700;color:var(--brand);background:var(--brand-soft);
 border-radius:var(--radius-xs);padding:7px 10px;text-align:center;
}
.update-item h3{font-size:17px;margin-bottom:8px}
.update-item p{color:var(--muted);font-size:14.5px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);
 padding:0 24px;box-shadow:var(--shadow-s);transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{border-color:#d5cfff}
.faq-item[open]{box-shadow:var(--shadow);border-color:#d5cfff}
.faq-item summary{
 cursor:pointer;list-style:none;padding:20px 0;font-weight:700;font-size:16.5px;
 display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:22px;line-height:1;color:var(--brand);transition:transform .25s;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{color:var(--muted);font-size:15px;padding-bottom:22px;margin:0}

/* ---------- cta ---------- */
.cta-band{
 background:linear-gradient(120deg,#251a5e 0%,#5a3ff0 58%,#7d5dff 100%);
 color:#fff;border-radius:var(--radius-l);padding:48px 46px;
 display:grid;grid-template-columns:1.08fr .92fr;gap:38px;align-items:center;
 box-shadow:var(--shadow-l);position:relative;overflow:hidden;
}
.cta-band::after{
 content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.85);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.subscribe-form{
 display:flex;gap:8px;background:#fff;border-radius:999px;padding:8px;
 box-shadow:0 18px 40px rgba(20,23,38,.22);position:relative;z-index:2;
}
.subscribe-form input{
 flex:1;min-width:0;border:0;background:transparent;padding:11px 18px;font-size:15px;outline:none;color:var(--ink);
}
.subscribe-form input::placeholder{color:#9aa0b5}
.subscribe-form button{
 border:0;border-radius:999px;padding:11px 24px;font-size:15px;font-weight:700;cursor:pointer;
 background:var(--accent);color:#fff;transition:background .2s,transform .2s;white-space:nowrap;
}
.subscribe-form button:hover{background:#ea5a2c;transform:translateY(-1px)}
.form-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.7)}

/* ---------- footer ---------- */
.site-footer{background:#141726;color:rgba(255,255,255,.72);padding:58px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding-bottom:42px}
.footer-brand .brand-name{color:#fff;font-size:20px;font-weight:800;margin-bottom:14px;letter-spacing:.06em}
.footer-brand p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.6);margin:0}
.footer-col h4{color:#fff;font-size:15.5px;margin:0 0 16px}
.footer-col ul{display:grid;gap:10px;font-size:14.5px}
.footer-col li{color:rgba(255,255,255,.62)}
.footer-col a{color:rgba(255,255,255,.62);transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom .wrap{
 display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
 padding-top:20px;padding-bottom:20px;font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .scheme-grid{grid-template-columns:repeat(2,1fr)}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .hero-stats{grid-template-columns:repeat(2,1fr)}
 .split{grid-template-columns:1fr;gap:32px}
 .cta-band{grid-template-columns:1fr;padding:40px 34px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
 .nav-toggle{display:flex}
 .nav{
  position:absolute;top:100%;left:0;right:0;display:none;
  flex-direction:column;align-items:stretch;gap:6px;
  background:#fff;padding:14px 16px 20px;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow);
 }
 .nav.is-open{display:flex}
 .nav-link{padding:12px 14px;border-radius:12px;font-size:15.5px}
 .nav-link.is-active{box-shadow:none}
 .brand-sub{display:none}
}
@media (max-width:768px){
 .section{padding:58px 0}
 .page-hero{padding:56px 0 62px}
 .grid-2,.grid-3,.grid-4,.scheme-grid{grid-template-columns:1fr}
 .check-grid{grid-template-columns:1fr;gap:20px}
 .check-panel{padding:30px 24px}
 .row-item{grid-template-columns:46px 1fr;gap:14px}
 .row-item .row-meta{grid-column:2;justify-self:start}
 .row-num{width:46px;height:46px}
 .update-item{grid-template-columns:1fr;gap:14px}
 .update-date{justify-self:start;text-align:left;padding:6px 14px}
 .hero-stats{grid-template-columns:1fr 1fr;gap:12px}
 .cta-band{padding:32px 22px;border-radius:22px}
}
@media (max-width:520px){
 .header-inner{height:66px}
 .brand-name{font-size:18px}
 .hero-stats{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr}
 .subscribe-form{flex-direction:column;border-radius:20px;padding:10px}
 .subscribe-form button{width:100%}
 .subscribe-form input{padding:10px 14px}
 .btn{width:100%}
 .cta-actions .btn{width:100%}
 .scheme-body{padding:18px 18px 20px}
}

/* roulang page: category2 */
:root{
 --ink:#141726;
 --ink-2:#3c4159;
 --muted:#6b7086;
 --line:#e6e8f0;
 --line-2:#d9dcea;
 --bg:#f6f7fb;
 --surface:#ffffff;
 --brand:#5a3ff0;
 --brand-dark:#432bd6;
 --brand-soft:#eeeaff;
 --accent:#ff6b3d;
 --accent-2:#19c2a8;
 --radius-xs:8px;
 --radius-s:12px;
 --radius:18px;
 --radius-l:28px;
 --shadow-s:0 2px 10px rgba(20,23,38,.06);
 --shadow:0 16px 38px rgba(20,23,38,.09);
 --shadow-l:0 30px 70px rgba(20,23,38,.16);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand);color:#fff}

/* ---------- 容器 ---------- */
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ---------- 按钮 ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:14px 28px;border-radius:999px;font-size:15.5px;font-weight:700;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 16px 34px rgba(90,63,240,.34)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 20px 42px rgba(90,63,240,.42)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(90,63,240,.3)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-2)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 16px 34px rgba(255,107,61,.32)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(255,107,61,.4)}

/* ---------- 标签 / 徽章 ---------- */
.tag{
 display:inline-block;padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:700;
 background:var(--brand-soft);color:var(--brand);letter-spacing:.02em;
}
.tag--accent{background:#fff1eb;color:#d8481c}
.tag--teal{background:#e4faf5;color:#0f8b79}
.tag-row{display:flex;flex-wrap:wrap;gap:9px}

/* ---------- 头部导航 ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.92);
 -webkit-backdrop-filter:blur(14px);
 backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
 width:28px;height:28px;border-radius:10px;
 background:conic-gradient(from 200deg,#5a3ff0,#ff6b3d,#19c2a8,#5a3ff0);
 box-shadow:0 4px 12px rgba(90,63,240,.32);
}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.06em}
.brand-sub{font-size:12px;color:var(--muted);padding-left:10px;border-left:1px solid var(--line-2)}
.nav{display:flex;align-items:center;gap:6px}
.nav-link{
 padding:9px 16px;border-radius:999px;font-size:15px;color:var(--ink-2);
 transition:background .2s,color .2s,box-shadow .2s;white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand)}
.nav-link.is-active{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(90,63,240,.28)}
.nav-toggle{
 display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:13px;
 background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.2s}

/* ---------- 内页首屏 ---------- */
.page-hero{
 position:relative;color:#fff;overflow:hidden;
 background-image:linear-gradient(115deg,rgba(16,14,42,.92),rgba(45,26,96,.74)),url("/assets/images/ac08bef16112acbc.webp");
 background-size:cover;background-position:center;
 padding:86px 0 92px;
}
.page-hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:radial-gradient(640px 320px at 16% 10%,rgba(90,63,240,.5),transparent 68%),
 radial-gradient(520px 300px at 90% 92%,rgba(25,194,168,.3),transparent 70%);
}
.page-hero .wrap{position:relative;z-index:2}
.hero-crumb{font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:20px}
.hero-crumb a{color:rgba(255,255,255,.86);border-bottom:1px solid rgba(255,255,255,.32)}
.hero-crumb a:hover{color:#fff;border-bottom-color:#fff}
.hero-crumb span{margin:0 8px;opacity:.6}
.hero-eyebrow{
 display:inline-block;margin-bottom:20px;padding:7px 16px;border-radius:999px;font-size:13px;letter-spacing:.18em;
 background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.28);
}
.page-hero h1{
 font-size:clamp(27px,4vw,44px);line-height:1.32;letter-spacing:-.015em;max-width:900px;
 text-shadow:0 6px 30px rgba(0,0,0,.28);
}
.hero-lead{margin-top:22px;max-width:760px;font-size:17px;line-height:1.95;color:rgba(255,255,255,.87)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.hero-tags span{
 padding:6px 14px;border-radius:999px;font-size:13px;color:rgba(255,255,255,.88);
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);
}

/* ---------- 板块 ---------- */
.section{padding:78px 0}
.section--alt{background:#fff}
.section--tint{background:linear-gradient(180deg,#f9f8ff,#f6f7fb)}
.section-head{max-width:760px;margin-bottom:42px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
 display:inline-block;font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--brand);text-transform:uppercase;
}
.section-head h2{font-size:clamp(23px,3vw,33px);margin:12px 0 14px;letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:16px}

/* ---------- 网格 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

/* ---------- 通用卡片 ---------- */
.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;
 box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s,border-color .25s;
 display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d5cfff}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.card-icon{
 width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
 font-size:20px;font-weight:800;color:#fff;margin-bottom:18px;
 background:linear-gradient(135deg,var(--brand),#8a6bff);
}
.grid-3 .card:nth-child(3n+2) .card-icon{background:linear-gradient(135deg,var(--accent),#ff9a5c)}
.grid-3 .card:nth-child(3n) .card-icon{background:linear-gradient(135deg,var(--accent-2),#4ad6c2)}
.grid-2 .card:nth-child(2n) .card-icon{background:linear-gradient(135deg,var(--accent-2),#4ad6c2)}

/* ---------- 媒体卡片 ---------- */
.media-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
 box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s,border-color .25s;
 display:flex;flex-direction:column;
}
.media-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#d5cfff}
.media-card img{width:100%;height:214px;object-fit:cover;transition:transform .5s ease}
.media-card:hover img{transform:scale(1.045)}
.media-thumb{overflow:hidden;position:relative}
.media-body{padding:24px 24px 28px;display:flex;flex-direction:column;gap:11px;flex:1}
.media-body h3{font-size:18.5px;line-height:1.5}
.media-body p{color:var(--muted);font-size:15px}
.media-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}

/* ---------- 数据块 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;
 box-shadow:var(--shadow-s);position:relative;overflow:hidden;
 transition:transform .25s,box-shadow .25s;
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.stat::before{
 content:"";position:absolute;left:0;top:0;height:5px;width:100%;
 background:linear-gradient(90deg,var(--brand),var(--accent));
}
.stat-num{font-size:32px;font-weight:800;letter-spacing:-.02em;color:var(--brand);line-height:1.2}
.stat-label{font-size:15.5px;font-weight:700;margin:6px 0 8px}
.stat p{color:var(--muted);font-size:14.5px;line-height:1.8}

/* ---------- 图文区块 ---------- */
.feature{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.feature-media{position:relative}
.feature-media img{
 width:100%;height:400px;object-fit:cover;border-radius:var(--radius-l);
 box-shadow:var(--shadow);border:1px solid var(--line);
}
.feature-media::after{
 content:"";position:absolute;inset:auto -16px -16px auto;width:132px;height:132px;border-radius:26px;
 background:linear-gradient(135deg,rgba(90,63,240,.18),rgba(255,107,61,.2));z-index:-1;
}
.feature h2{font-size:clamp(22px,2.8vw,31px);margin:12px 0 16px}
.feature > div > p{color:var(--muted);font-size:16px}

/* ---------- 列表 ---------- */
.check-list{margin-top:22px;display:grid;gap:14px}
.check-list li{position:relative;padding-left:32px;font-size:15.5px;color:var(--ink-2);line-height:1.8}
.check-list li::before{
 content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:6px;
 background:linear-gradient(135deg,var(--brand),#8a6bff);
 box-shadow:0 4px 10px rgba(90,63,240,.3);
}
.check-list li strong{color:var(--ink)}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px 28px;
 box-shadow:var(--shadow-s);counter-increment:step;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d5cfff}
.step::before{
 content:"0" counter(step);display:block;font-size:26px;font-weight:800;line-height:1;
 color:#cbc3ff;margin-bottom:14px;letter-spacing:.04em;
}
.step h3{font-size:17.5px;margin-bottom:9px}
.step p{color:var(--muted);font-size:14.5px;line-height:1.8}

/* ---------- 色卡条 ---------- */
.swatch-row{display:flex;gap:8px;margin-top:16px}
.swatch{
 flex:1;height:46px;border-radius:12px;border:1px solid rgba(20,23,38,.07);
 box-shadow:inset 0 -10px 20px rgba(255,255,255,.16);
}
.swatch-cap{font-size:12.5px;color:var(--muted);margin-top:8px;letter-spacing:.02em}

/* ---------- 频道矩阵 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.channel-card{
 display:flex;flex-direction:column;gap:12px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;
 box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s,border-color .25s;
}
a.channel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d5cfff}
a.channel-card:hover .channel-link{color:var(--brand-dark)}
.channel-card.is-current{border-color:#d5cfff;background:linear-gradient(180deg,#faf9ff,#fff)}
.channel-card h3{font-size:19px}
.channel-card p{color:var(--muted);font-size:15px}
.channel-link{margin-top:auto;font-size:14.5px;font-weight:700;color:var(--brand);transition:color .2s}
.channel-badge{font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:.04em}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);
 padding:0 26px;box-shadow:var(--shadow-s);transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{border-color:#d5cfff;box-shadow:var(--shadow)}
.faq-item[open]{border-color:#d5cfff}
.faq-item summary{
 cursor:pointer;list-style:none;padding:20px 0;font-size:16.5px;font-weight:700;
 display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:22px;font-weight:600;color:var(--brand);line-height:1;flex-shrink:0;transition:transform .25s;
}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-a{padding:0 0 22px;color:var(--muted);font-size:15.5px;line-height:1.9;max-width:800px}

/* ---------- 行动区 ---------- */
.cta-band{
 position:relative;overflow:hidden;
 background:linear-gradient(120deg,#1d1550,#432bd6 58%,#5a3ff0);
 color:#fff;border-radius:var(--radius-l);padding:56px 52px;
 display:grid;grid-template-columns:1.5fr auto;gap:34px;align-items:center;
 box-shadow:var(--shadow-l);
}
.cta-band::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:radial-gradient(460px 240px at 90% 12%,rgba(25,194,168,.34),transparent 70%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);line-height:1.4;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.85);font-size:16px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{background:#12142a;color:#b9bdd4;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px;padding-bottom:46px}
.footer-brand .brand-name{color:#fff;font-size:20px;font-weight:800;letter-spacing:.06em;margin-bottom:14px}
.footer-brand p{font-size:14.5px;line-height:1.9;color:#9ca1bd;max-width:360px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.03em}
.footer-col ul li{font-size:14.5px;margin-bottom:11px;color:#9ca1bd}
.footer-col a{transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:13.5px}
.footer-bottom .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;color:#868ba8}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .stat-grid{grid-template-columns:repeat(2,1fr)}
 .steps{grid-template-columns:repeat(2,1fr)}
 .channel-grid{grid-template-columns:repeat(2,1fr)}
 .feature{grid-template-columns:1fr;gap:32px}
 .feature-media img{height:340px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
 .cta-band{grid-template-columns:1fr;padding:46px 34px}
 .cta-actions{justify-content:flex-start}
}
@media (max-width:860px){
 .nav-toggle{display:flex}
 .nav{
  position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;gap:6px;
  padding:14px 20px 20px;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow);display:none;
 }
 .nav.is-open{display:flex}
 .nav-link{padding:12px 16px;border-radius:14px}
 .brand-sub{display:none}
 .section{padding:60px 0}
 .page-hero{padding:64px 0 70px}
}
@media (max-width:640px){
 .wrap{padding:0 18px}
 .grid-2,.grid-3,.grid-4,.stat-grid,.steps,.channel-grid{grid-template-columns:1fr}
 .section{padding:52px 0}
 .card{padding:24px 22px}
 .media-card img{height:196px}
 .feature-media img{height:250px}
 .cta-band{padding:38px 24px;border-radius:22px}
 .cta-actions .btn{width:100%}
 .hero-actions .btn{width:100%}
 .footer-grid{grid-template-columns:1fr;gap:28px}
 .footer-bottom .wrap{flex-direction:column;align-items:flex-start;gap:6px}
 .faq-item{padding:0 20px}
 .stat-num{font-size:27px}
}

/* roulang page: category3 */
:root{
 --ink:#141726;
 --ink-2:#3c4159;
 --muted:#6b7086;
 --line:#e6e8f0;
 --line-2:#d9dcea;
 --bg:#f6f7fb;
 --surface:#ffffff;
 --brand:#5a3ff0;
 --brand-dark:#432bd6;
 --brand-soft:#eeeaff;
 --accent:#ff6b3d;
 --accent-2:#19c2a8;
 --radius-xs:8px;
 --radius-s:12px;
 --radius:18px;
 --radius-l:28px;
 --shadow-s:0 2px 10px rgba(20,23,38,.06);
 --shadow:0 16px 38px rgba(20,23,38,.09);
 --shadow-l:0 30px 70px rgba(20,23,38,.16);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--brand)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(90,63,240,.45);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.92);
 -webkit-backdrop-filter:blur(14px);
 backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
 width:28px;height:28px;border-radius:10px;
 background:conic-gradient(from 200deg,#5a3ff0,#ff6b3d,#19c2a8,#5a3ff0);
 box-shadow:0 4px 12px rgba(90,63,240,.32);
}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.06em}
.brand-sub{font-size:12px;color:var(--muted);padding-left:10px;border-left:1px solid var(--line-2)}
.nav{display:flex;align-items:center;gap:6px}
.nav-link{
 padding:9px 16px;border-radius:999px;font-size:15px;color:var(--ink-2);
 transition:background .2s,color .2s,box-shadow .2s;white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand)}
.nav-link.is-active{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(90,63,240,.28)}
.nav-toggle{
 display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:13px;
 background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.2s}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:14px 28px;border-radius:999px;font-size:15.5px;font-weight:700;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 16px 34px rgba(90,63,240,.34)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 20px 42px rgba(90,63,240,.42)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-2)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 16px 34px rgba(255,107,61,.32)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(255,107,61,.4);color:#fff}
.btn-sm{padding:10px 20px;font-size:14.5px}
/* ---------- badge / tag ---------- */
.badge-soft{
 display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
 font-size:12.5px;font-weight:700;color:var(--brand);background:var(--brand-soft);
}
.badge-accent{background:#ffeee8;color:#d94a1d}
.badge-green{background:#e2f8f4;color:#0f8a78}
.tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
.tag{
 padding:6px 13px;border-radius:999px;font-size:13px;color:var(--ink-2);
 background:#f2f3f9;border:1px solid var(--line);transition:.2s;
}
.tag:hover{background:var(--brand-soft);border-color:#cfc6ff;color:var(--brand)}
/* ---------- page hero ---------- */
.page-hero{
 position:relative;color:#fff;overflow:hidden;
 background-image:linear-gradient(115deg,rgba(16,14,42,.92),rgba(45,26,96,.72)),url("/assets/images/3513f42a00c50878.jpg");
 background-size:cover;background-position:center;
 padding:78px 0 84px;
}
.page-hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:radial-gradient(620px 320px at 18% 6%,rgba(90,63,240,.5),transparent 68%),
 radial-gradient(480px 280px at 90% 94%,rgba(25,194,168,.3),transparent 72%);
}
.page-hero .wrap{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:20px}
.crumb a:hover{color:#fff}
.page-hero h1{
 font-size:clamp(27px,3.8vw,42px);line-height:1.32;max-width:900px;
 text-shadow:0 6px 30px rgba(0,0,0,.28);
}
.page-hero p.lead{
 margin-top:20px;max-width:760px;font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.86);
}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px 28px;margin-top:30px;font-size:14px;color:rgba(255,255,255,.8)}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent-2);display:inline-block}
/* ---------- section base ---------- */
.section{padding:76px 0}
.section--alt{background:#fff}
.section--tint{background:linear-gradient(180deg,#f9f8ff,#f6f7fb)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
 display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.16em;color:var(--brand);
 text-transform:uppercase;
}
.section-head h2{font-size:clamp(22px,2.9vw,32px);margin:12px 0 14px}
.section-head p{color:var(--muted);font-size:15.8px}
/* ---------- grids ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
/* ---------- cards ---------- */
.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;
 box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s,border-color .25s;
 display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d5cfff}
.card h3{font-size:18.5px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.card-icon{
 width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
 font-size:18px;font-weight:800;color:#fff;margin-bottom:18px;flex-shrink:0;
 background:linear-gradient(135deg,var(--brand),#8a6bff);
}
.grid-3 > .card:nth-child(2) .card-icon{background:linear-gradient(135deg,var(--accent),#ff9a5c)}
.grid-3 > .card:nth-child(3) .card-icon{background:linear-gradient(135deg,var(--accent-2),#4ad6c2)}
.grid-4 > .card:nth-child(2) .card-icon{background:linear-gradient(135deg,var(--accent),#ff9a5c)}
.grid-4 > .card:nth-child(3) .card-icon{background:linear-gradient(135deg,var(--accent-2),#4ad6c2)}
.grid-4 > .card:nth-child(4) .card-icon{background:linear-gradient(135deg,#f0b429,#f6d365)}
/* ---------- media card ---------- */
.media-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
 box-shadow:var(--shadow-s);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column;
}
.media-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.media-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#eceef7}
.media-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.media-card:hover .thumb img{transform:scale(1.05)}
.media-card .thumb .chip{
 position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;
 background:rgba(20,23,38,.72);color:#fff;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.media-card .body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.media-card h3{font-size:18px;margin-bottom:9px}
.media-card p{color:var(--muted);font-size:14.6px;flex:1}
.meta-line{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;font-size:13px;color:var(--muted)}
/* ---------- stat strip ---------- */
.stat-strip{
 display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
 border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-s);
}
.stat-strip .item{background:#fff;padding:28px 24px;text-align:center;transition:background .25s}
.stat-strip .item:hover{background:#faf9ff}
.stat-strip .num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.2}
.stat-strip .label{font-size:14px;color:var(--muted);margin-top:6px}
/* ---------- ratio bars ---------- */
.ratio-list{display:flex;flex-direction:column;gap:22px;margin-top:6px}
.ratio-item .head{display:flex;justify-content:space-between;font-size:14.6px;font-weight:700;margin-bottom:9px}
.ratio-item .head em{font-style:normal;color:var(--muted);font-weight:600}
.bar{height:12px;border-radius:999px;background:#eef0f8;overflow:hidden}
.bar span{display:block;height:100%;border-radius:999px}
.bar .c1{background:linear-gradient(90deg,#5a3ff0,#8a6bff)}
.bar .c2{background:linear-gradient(90deg,#19c2a8,#5ce0cd)}
.bar .c3{background:linear-gradient(90deg,#ff6b3d,#ffa176)}
.bar .c4{background:linear-gradient(90deg,#f0b429,#ffd977)}
/* ---------- swatch ---------- */
.swatch-box{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:22px;box-shadow:var(--shadow-s);transition:.25s;
}
.swatch-box:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.swatch-row{display:flex;gap:8px;margin-bottom:16px}
.swatch-row i{flex:1;height:52px;border-radius:12px;display:block}
.swatch-box h4{font-size:16px;margin-bottom:8px}
.swatch-box p{font-size:14.2px;color:var(--muted)}
.code-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.code-list code{
 font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;
 padding:4px 9px;border-radius:8px;background:#f3f4fa;color:var(--ink-2);border:1px solid var(--line);
}
/* ---------- list blocks ---------- */
.pkg-list{display:flex;flex-direction:column;gap:14px}
.pkg-item{
 display:flex;align-items:flex-start;gap:16px;padding:18px 20px;background:#fff;
 border:1px solid var(--line);border-radius:var(--radius-s);box-shadow:var(--shadow-s);
 transition:transform .2s,border-color .2s,box-shadow .2s;
}
.pkg-item:hover{transform:translateX(4px);border-color:#cfc6ff;box-shadow:var(--shadow)}
.pkg-item .idx{
 width:36px;height:36px;flex-shrink:0;border-radius:11px;display:flex;align-items:center;justify-content:center;
 font-weight:800;font-size:14px;color:var(--brand);background:var(--brand-soft);
}
.pkg-item h4{font-size:16px;margin-bottom:4px}
.pkg-item p{font-size:14.2px;color:var(--muted)}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{
 position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 24px;box-shadow:var(--shadow-s);transition:.25s;
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.step .no{
 position:absolute;right:22px;top:18px;font-size:34px;font-weight:800;color:#eff0f8;line-height:1;
}
.step h4{font-size:16.5px;margin-bottom:9px}
.step p{font-size:14.4px;color:var(--muted)}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto}
.faq-list details{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);
 padding:18px 22px;box-shadow:var(--shadow-s);transition:border-color .2s,box-shadow .2s;
}
.faq-list details[open]{border-color:#cfc6ff;box-shadow:var(--shadow)}
.faq-list summary{
 cursor:pointer;font-weight:700;font-size:16px;list-style:none;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--brand);flex-shrink:0;transition:transform .2s;
}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list .answer{margin-top:12px;font-size:14.8px;color:var(--muted);line-height:1.85}
/* ---------- cta ---------- */
.cta{
 position:relative;overflow:hidden;border-radius:var(--radius-l);color:#fff;
 background-image:linear-gradient(120deg,rgba(24,18,64,.92),rgba(64,36,140,.78)),url("/assets/images/92c297f489498091.webp");
 background-size:cover;background-position:center;padding:56px 48px;box-shadow:var(--shadow-l);
}
.cta-inner{position:relative;z-index:2;max-width:660px}
.cta h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:14px}
.cta p{color:rgba(255,255,255,.86);font-size:15.8px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
/* ---------- footer ---------- */
.site-footer{background:#111426;color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:12px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.site-footer .brand-name{color:#fff;font-size:20px;font-weight:800;letter-spacing:.06em;margin-bottom:14px}
.footer-brand p{font-size:14.4px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h4{font-size:15.5px;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14.3px;color:rgba(255,255,255,.62);transition:color .2s}
.footer-col a{color:rgba(255,255,255,.62)}
.footer-col a:hover{color:#fff}
.footer-col li:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1)}
.footer-bottom .wrap{
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
 padding-top:22px;padding-bottom:26px;font-size:13.5px;color:rgba(255,255,255,.5);
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .split{grid-template-columns:1fr;gap:34px}
 .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
 .header-inner{height:64px}
 .brand-sub{display:none}
 .nav-toggle{display:flex}
 .nav{
  position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border-bottom:1px solid var(--line);padding:14px 18px 20px;
  box-shadow:0 24px 40px rgba(20,23,38,.12);
  display:none;
 }
 .nav.is-open{display:flex}
 .nav-link{padding:12px 14px;border-radius:12px;font-size:15.5px}
 .page-hero{padding:56px 0 62px}
 .section{padding:56px 0}
 .stat-strip{grid-template-columns:repeat(2,1fr)}
 .cta{padding:40px 26px;border-radius:var(--radius)}
}
@media (max-width:520px){
 .grid-2,.grid-3,.grid-4,.steps{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr}
 .wrap{padding:0 18px}
 .page-hero h1{font-size:25px}
 .btn{width:100%;padding:13px 20px}
 .cta-actions{flex-direction:column}
 .stat-strip .num{font-size:25px}
 .media-card .thumb{aspect-ratio:16/11}
 .pkg-item{padding:16px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}