/* roulang page: index */
:root{
  --brand:#6C4CF1;
  --brand-strong:#5A3BE0;
  --accent:#FF5C7A;
  --reward:#FFD23F;
  --ink:#1A1723;
  --ink-2:#6B6580;
  --paper:#FBFAF7;
  --paper-2:#F2EEE7;
  --line:#E7E3DC;
  --dark:#16121F;
  --radius-card:14px;
  --radius-btn:9px;
  --shadow-card:0 1px 0 rgba(26,23,35,.04),0 8px 24px rgba(26,23,35,.06);
  --shadow-card-hover:0 2px 0 rgba(26,23,35,.05),0 14px 34px rgba(26,23,35,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1{font-size:clamp(32px,4.4vw,54px);font-weight:800;letter-spacing:-.02em;line-height:1.15}
h2{font-size:clamp(24px,2.7vw,34px);font-weight:800;letter-spacing:-.015em;line-height:1.25}
h3{font-size:20px;font-weight:700;line-height:1.5}
::selection{background:rgba(108,76,241,.18)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-head p{color:var(--ink-2);font-size:15px;max-width:52ch;margin-top:10px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2)}
.eyebrow .dot{width:8px;height:8px;border-radius:999px;background:var(--brand);display:inline-block}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,250,247,.97);border-bottom:1px solid var(--line);transition:background-color .2s ease-out}
.header-inner{display:flex;align-items:center;gap:32px;height:78px;transition:height .2s ease-out}
.site-header.is-stuck .header-inner{height:66px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{position:relative;width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-strong));flex-shrink:0}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:3px;background:var(--reward)}
.brand-name{display:flex;flex-direction:column;line-height:1.14}
.brand-name strong{font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand-name em{font-style:normal;font-size:10.5px;font-weight:600;letter-spacing:.16em;color:var(--ink-2)}
.primary-nav{display:flex;align-items:center;gap:30px;margin-right:auto}
.nav-item{position:relative;padding:6px 0;font-size:15px;color:var(--ink-2);transition:color .16s ease-out}
.nav-item::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);transition:width .16s ease-out}
.nav-item:hover{color:var(--ink)}
.nav-item:hover::after{width:100%}
.nav-item.is-active{color:var(--ink);font-weight:700}
.nav-item.is-active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{width:40px;height:40px;border-radius:9px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink);transition:border-color .16s ease-out,color .16s ease-out,background-color .16s ease-out}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.icon-btn svg{width:18px;height:18px;stroke-width:1.5}
.menu-btn{display:none}
.search-panel{border-top:1px solid var(--line);background:var(--paper-2);padding:18px 0}
.search-form{display:flex;gap:12px;align-items:center}
.search-form input{flex:1 1 auto;min-width:0;padding:12px 16px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);outline:none;transition:border-color .16s ease-out,box-shadow .16s ease-out}
.search-form input::placeholder{color:#A39DAF}
.search-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,76,241,.20)}
.drawer{position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 18px 40px rgba(26,23,35,.10)}
.drawer-inner{padding:8px 0 20px}
.drawer a{display:block;font-size:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.drawer a.is-active{color:var(--brand);font-weight:700}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;padding:13px 24px;line-height:1;transition:transform .16s ease-out,background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out}
.btn svg{width:16px;height:16px;stroke-width:1.8}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(108,76,241,.22)}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-1px);box-shadow:0 10px 24px rgba(108,76,241,.28)}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--reward);color:var(--ink);transform:translateY(-1px)}
.btn-ghostlight{border:1px solid rgba(255,255,255,.45);color:#fff}
.btn-ghostlight:hover{border-color:#fff;background:rgba(255,255,255,.10)}
.btn-sm{padding:10px 17px;font-size:14px}
.btn:focus-visible,.icon-btn:focus-visible,.nav-item:focus-visible,a:focus-visible,button:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(108,76,241,.22);border-radius:8px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);position:relative}
.link-arrow svg{width:15px;height:15px;stroke-width:2;transition:transform .16s ease-out}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--brand);background:rgba(108,76,241,.10);border-radius:999px;padding:4px 11px}
.badge-warm{color:#B23A55;background:rgba(255,92,122,.12)}
.badge-reward{color:#7A5A00;background:rgba(255,210,63,.28)}
.tagline{display:inline-flex;align-items:center;font-size:12.5px;color:var(--ink-2);border:1px solid var(--line);border-radius:999px;padding:4px 12px;background:#fff}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 84px}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(108,76,241,.9) 1px,transparent 1px);background-size:24px 24px;opacity:.06;pointer-events:none}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy h1{margin:20px 0 0}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.8;color:var(--ink-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:44px;border-top:1px solid var(--line);padding-top:26px}
.hero-stats li{display:flex;flex-direction:column;gap:2px;padding-right:8px}
.hero-stats strong{font-size:22px;font-weight:800;letter-spacing:-.01em}
.hero-stats span{font-size:12.5px;color:var(--ink-2)}
.hero-media{position:relative;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;aspect-ratio:4/3;background:var(--paper-2);box-shadow:var(--shadow-card)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media figcaption{position:absolute;left:16px;bottom:16px;right:16px;font-size:12.5px;color:#fff;background:rgba(22,18,31,.72);border-radius:999px;padding:7px 14px;backdrop-filter:none}

/* ---------- theme cover ---------- */
.theme-cover{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:#fff;box-shadow:var(--shadow-card)}
.theme-cover-media{position:relative;aspect-ratio:16/11;background:var(--paper-2)}
.theme-cover-media img{width:100%;height:100%;object-fit:cover}
.cover-index{position:absolute;left:20px;top:20px;background:var(--reward);color:var(--ink);font-size:13px;font-weight:800;letter-spacing:.1em;border-radius:999px;padding:6px 13px}
.theme-cover-body{padding:44px 42px;display:flex;flex-direction:column;gap:16px;justify-content:center}
.theme-cover-body p{color:var(--ink-2);font-size:15.5px;line-height:1.85}
.cover-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.cover-points li{font-size:12.5px;color:var(--ink-2);border:1px solid var(--line);border-radius:999px;padding:4px 12px;background:var(--paper)}
.theme-cover-body .btn{align-self:flex-start;margin-top:8px}

/* ---------- collection index ---------- */
.collection-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 56px;border-top:1px solid var(--line)}
.collection-row{display:flex;align-items:center;gap:18px;padding:22px 4px;border-bottom:1px solid var(--line);transition:background-color .18s ease-out,padding-left .18s ease-out}
.collection-row:hover{background:var(--paper-2);padding-left:14px}
.row-num{width:34px;flex-shrink:0;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--ink-2);transition:color .18s ease-out}
.collection-row:hover .row-num{color:var(--brand)}
.row-main{flex:1 1 auto;min-width:0;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.row-title{font-size:17px;font-weight:600}
.row-desc{font-size:13px;color:var(--ink-2);width:100%;margin-top:2px}
.row-tags{display:none}
.row-arrow{flex-shrink:0;color:var(--ink-2);transition:transform .18s ease-out,color .18s ease-out}
.row-arrow svg{width:18px;height:18px;stroke-width:1.8}
.collection-row:hover .row-arrow{transform:translateX(4px);color:var(--brand)}

/* ---------- cards ---------- */
.card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:var(--brand)}
.card-media{position:relative;aspect-ratio:16/10;background:var(--paper-2);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-title{font-size:18px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-summary{font-size:14px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-2)}
.card-meta .sep{width:1px;height:11px;background:var(--line);display:inline-block}

.featured-grid{display:grid;grid-template-columns:1.4fr 1fr;grid-template-rows:1fr 1fr;gap:24px}
.featured-main{grid-row:1 / span 2}
.featured-main .card-media{aspect-ratio:16/11}
.featured-main .card-title{font-size:23px;-webkit-line-clamp:3}
.featured-main .card-summary{-webkit-line-clamp:3;font-size:15px}
.featured-side .card{flex-direction:row;align-items:stretch}
.featured-side .card-media{width:38%;aspect-ratio:auto;flex-shrink:0}
.featured-side .card-body{padding:18px 20px}

.latest-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.empty-state{grid-column:1 / -1;background:var(--paper-2);border:1px dashed var(--line);border-radius:var(--radius-card);padding:52px 24px;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;color:var(--ink-2);font-size:14px}

.mini-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.mini-card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;height:100%;transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;box-shadow:var(--shadow-card)}
.mini-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--shadow-card-hover)}
.mini-card h3{font-size:16px;font-weight:700}
.mini-card p{font-size:13.5px;color:var(--ink-2);line-height:1.75}
.mini-num{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--brand)}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--dark);color:#fff;border-radius:18px;padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);background-size:26px 26px;opacity:.05;pointer-events:none}
.cta-band h2{color:#fff;max-width:22ch}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.72);font-size:15px;max-width:46ch}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0}
.cta-inner{position:relative;z-index:1}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:flex-start;gap:16px;padding:24px 4px;text-align:left}
.faq-idx{flex-shrink:0;font-size:13px;font-weight:800;color:var(--ink-2);letter-spacing:.06em;padding-top:5px}
.faq-text{flex:1 1 auto;font-size:17px;font-weight:700;line-height:1.6}
.faq-sign{flex-shrink:0;width:22px;height:22px;margin-top:4px;color:var(--ink-2);transition:transform .2s ease-out,color .2s ease-out}
.faq-sign svg{width:22px;height:22px;stroke-width:1.8}
.faq-item.is-open .faq-sign{color:var(--brand);transform:rotate(45deg)}
.faq-item.is-open .faq-text{color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a p{padding:0 44px 24px 52px;color:var(--ink-2);font-size:15px;line-height:1.85}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#fff;margin-top:96px;padding:76px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer-brand .brand-mark{width:26px;height:26px}
.footer-brand .brand-name strong{color:#fff}
.footer-brand .brand-name em{color:rgba(255,255,255,.55)}
.footer-about{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:34ch}
.footer-col h4{font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.48);margin-bottom:18px}
.footer-col li{margin-bottom:12px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.78);transition:color .16s ease-out}
.footer-col a:hover{color:var(--reward);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:24px 0 32px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.52)}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s ease-out,transform .55s ease-out}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 8px}
  .primary-nav{display:none}
  .menu-btn{display:inline-flex}
  .theme-cover{grid-template-columns:1fr}
  .theme-cover-body{padding:32px 26px}
  .featured-grid{grid-template-columns:1fr;grid-template-rows:none}
  .featured-main{grid-row:auto}
  .latest-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .search-form{flex-direction:column;align-items:stretch}
  .featured-side .card{flex-direction:column}
  .featured-side .card-media{width:100%;aspect-ratio:16/10}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{margin-top:64px;padding-top:56px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .btn{width:auto}
  .hero-actions .btn{flex:1 1 100%}
  .collection-grid{grid-template-columns:1fr;gap:0}
  .latest-grid,.mini-grid{grid-template-columns:1fr}
  .card-meta{flex-wrap:wrap}
  .faq-a p{padding-left:16px;padding-right:8px}
  .cta-band{padding:32px 22px;border-radius:14px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
}

/* roulang page: article */
:root{
  --brand:#6C4CF1;
  --brand-strong:#5A3BE0;
  --accent:#FF5C7A;
  --reward:#FFD23F;
  --ink:#1A1723;
  --ink-2:#6B6580;
  --paper:#FBFAF7;
  --paper-2:#F2EEE7;
  --line:#E7E3DC;
  --dark:#16121F;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 1px 0 rgba(26,23,35,.04), 0 8px 24px rgba(26,23,35,.06);
  --shadow-hover:0 1px 0 rgba(26,23,35,.04), 0 14px 34px rgba(26,23,35,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:3px solid rgba(108,76,241,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,250,247,.97);
  border-bottom:1px solid var(--line);
  transition:background .18s ease-out;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;height:78px;
  transition:height .18s ease-out;
}
.site-header.is-scrolled .header-inner{height:66px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  position:relative;width:36px;height:36px;border-radius:11px;
  background:var(--brand);flex:0 0 auto;
  box-shadow:0 6px 16px rgba(108,76,241,.28);
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:11px;height:11px;
  transform:translate(-50%,-50%);border-radius:3px;background:#fff;opacity:.92;
}
.brand-name{display:flex;flex-direction:column;line-height:1.12}
.brand-name strong{font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-name em{font-style:normal;font-size:11px;letter-spacing:.18em;color:var(--ink-2)}
.primary-nav{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-item{
  position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;
  transition:color .18s ease-out;
}
.nav-item::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);transition:width .16s ease-out;
}
.nav-item:hover{color:var(--ink)}
.nav-item:hover::after{width:100%}
.nav-item.is-active{color:var(--ink);font-weight:600}
.nav-item.is-active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  display:grid;place-items:center;width:40px;height:40px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:transparent;cursor:pointer;
  transition:border-color .18s ease-out, background .18s ease-out, transform .18s ease-out;
}
.icon-btn:hover{border-color:var(--brand);background:#fff;transform:translateY(-1px)}
.nav-toggle{display:none}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease-out, color .18s ease-out, border-color .18s ease-out, transform .18s ease-out;
}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-1px)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-ghost{border-color:var(--line);color:var(--ink-2);background:#fff}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.on-dark.btn-outline{border-color:rgba(255,255,255,.45);color:#fff}
.on-dark.btn-outline:hover{background:#fff;color:var(--dark);border-color:#fff}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  background:rgba(108,76,241,.10);color:var(--brand);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-reward{background:rgba(255,210,63,.22);color:#8a6400}
.badge-accent{background:rgba(255,92,122,.12);color:#C93452}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;
  border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:var(--ink-2);background:#fff;
  transition:border-color .16s ease-out, color .16s ease-out, background .16s ease-out;
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:rgba(108,76,241,.05)}

/* ===== 区块标题 ===== */
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:30px;font-weight:800;line-height:1.25}
.section-head p{color:var(--ink-2);font-size:15px;margin-top:8px;max-width:56ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;letter-spacing:.20em;color:var(--ink-2);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:4px;height:4px;background:var(--brand);border-radius:1px}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--brand);position:relative;
}
.link-arrow span.arrow{transition:transform .16s ease-out}
.link-arrow:hover span.arrow{transform:translateX(4px)}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;
  background:var(--brand);transition:width .16s ease-out;
}
.link-arrow:hover::after{width:100%}

/* ===== 文章页头 ===== */
.article-hero{padding:44px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:24px}
.breadcrumb a{transition:color .16s ease-out}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C9C3D6}
.article-title{font-size:44px;font-weight:800;line-height:1.2;letter-spacing:-.02em;max-width:20ch}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:22px;font-size:12.5px;color:var(--ink-2);
}
.article-meta .divider{width:1px;height:12px;background:var(--line)}
.article-cover{
  margin-top:36px;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--paper-2);
  box-shadow:var(--shadow-card);
}
.article-cover .ratio{position:relative;width:100%;padding-top:56.25%}
.article-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.article-cover figcaption{font-size:12px;color:var(--ink-2);text-align:center;padding:12px 16px;border-top:1px solid var(--line);background:#fff}

/* ===== 正文布局 ===== */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 240px;
  gap:64px;align-items:start;padding:56px 0 88px;
}
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:#26222F;overflow-wrap:anywhere;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  position:relative;font-size:27px;font-weight:800;line-height:1.32;
  margin:2.1em 0 .75em;padding-left:16px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  background:var(--brand);border-radius:2px;
}
.article-body h3{font-size:20px;font-weight:700;margin:1.7em 0 .6em;color:var(--ink)}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.3em}
.article-body li{margin:.4em 0}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;border-left:3px solid var(--brand);
  background:var(--paper-2);border-radius:0 12px 12px 0;color:#4A4557;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-card);margin:1.5em 0}
.article-body figure{margin:1.5em 0}
.article-body figcaption{font-size:12px;color:var(--ink-2);text-align:center;margin-top:8px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-strong)}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  font-size:15px;margin:1.5em 0;border:1px solid var(--line);border-radius:10px;
}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--paper-2);font-weight:600}
.article-body code{
  background:var(--paper-2);border-radius:6px;padding:2px 6px;font-size:14.5px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ===== 侧栏 ===== */
.article-aside{position:sticky;top:104px;display:flex;flex-direction:column;gap:26px}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-card);
}
.aside-card h3{font-size:13px;letter-spacing:.16em;color:var(--ink-2);font-weight:700;margin-bottom:14px;text-transform:uppercase}
.aside-card ul{list-style:none;padding:0}
.aside-card li + li{border-top:1px solid var(--line)}
.aside-card li a{display:block;padding:11px 0;font-size:14px;color:var(--ink);transition:color .16s ease-out, padding-left .16s ease-out}
.aside-card li a:hover{color:var(--brand);padding-left:4px}
.aside-note{font-size:13px;color:var(--ink-2);line-height:1.75}

/* ===== 文末动作条 ===== */
.article-foot{
  max-width:760px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.share-row{display:flex;align-items:center;gap:10px}
.share-row button{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 15px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;font-size:13.5px;color:var(--ink-2);cursor:pointer;
  transition:border-color .16s ease-out, color .16s ease-out, transform .16s ease-out;
}
.share-row button:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}

/* ===== 卡片 ===== */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand)}
.card-cover{position:relative;padding-top:60%;background:var(--paper-2)}
.card-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.card-body{padding:22px}
.card-body h3{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:10px}
.card-body p{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:16px}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-2)}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}

/* ===== 深色 CTA ===== */
.cta-band{
  background:var(--dark);color:#EDEAF5;border-radius:var(--radius-card);
  padding:52px 48px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:22px 22px;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:30px;font-weight:800;line-height:1.3;max-width:24ch}
.cta-band p{color:#B3ACC6;font-size:15px;margin-top:12px;max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.cta-stats div strong{display:block;font-size:24px;font-weight:800;color:#fff}
.cta-stats div span{font-size:12.5px;color:#9C95B4;letter-spacing:.06em}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:flex-start;gap:14px;cursor:pointer;list-style:none;
  padding:22px 4px;font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .16s ease-out, background .16s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-num{font-size:12.5px;color:var(--ink-2);letter-spacing:.08em;padding-top:5px;flex:0 0 auto}
.faq-sign{margin-left:auto;flex:0 0 auto;font-size:20px;line-height:1;color:var(--ink-2);transition:transform .2s ease-out, color .2s ease-out}
.faq-item[open] .faq-sign{color:var(--brand);transform:rotate(45deg)}
.faq-answer{padding:0 4px 24px 44px;color:var(--ink-2);font-size:15px;line-height:1.85;max-width:70ch}

/* ===== 空态 ===== */
.empty-state{
  background:var(--paper-2);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:52px 24px;text-align:center;
}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:18px}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:#C9C3DA;margin-top:0;padding:72px 0 34px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{background:var(--brand)}
.footer-brand .brand-name strong{color:#fff}
.footer-brand .brand-name em{color:#9C95B4}
.footer-about{font-size:14px;line-height:1.85;color:#A39CB8;max-width:42ch}
.footer-col h4{
  font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:#8A82A3;font-weight:700;margin-bottom:16px;
}
.footer-col ul{list-style:none;padding:0}
.footer-col li{margin:9px 0;font-size:14px}
.footer-col a{color:#C9C3DA;transition:color .16s ease-out}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-col span{color:#A39CB8}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;color:#8A82A3;
}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out, transform .5s ease-out}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .container{padding:0 24px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:44px;padding:44px 0 72px}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap}
  .article-aside .aside-card{flex:1 1 260px}
  .article-title{font-size:36px}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section{padding:68px 0}
}
@media (max-width:900px){
  .nav-toggle{display:grid}
  .primary-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
    background:var(--paper);border-left:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 32px;margin:0;
    transform:translateX(101%);transition:transform .24s ease-out;z-index:70;
    overflow-y:auto;
  }
  .primary-nav.is-open{transform:translateX(0);box-shadow:-18px 0 44px rgba(26,23,35,.14)}
  .primary-nav .nav-item{font-size:16px;padding:16px 0;border-bottom:1px solid var(--line);color:var(--ink)}
  .primary-nav .nav-item::after{display:none}
  .primary-nav .nav-item.is-active{color:var(--brand)}
  .primary-nav .nav-item.is-active::before{
    content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
    background:var(--brand);margin-right:10px;vertical-align:middle;
  }
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .header-inner{height:66px}
  .site-header.is-scrolled .header-inner{height:60px}
  .article-title{font-size:31px;max-width:none}
  .article-meta{margin-top:16px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:23px}
  .section{padding:56px 0}
  .section-head h2{font-size:25px}
  .cta-band{padding:36px 24px}
  .cta-band h2{font-size:24px}
  .cta-stats{gap:26px}
  .rec-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:56px 0 28px}
  .faq-answer{padding-left:4px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .brand-name em{letter-spacing:.12em}
  .article-title{font-size:27px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .section-head h2{font-size:22px}
  .cta-stats div strong{font-size:20px}
}

/* roulang page: category1 */
:root{
    --brand:#6C4CF1;
    --brand-strong:#5A3BE0;
    --brand-soft:#B7A9FF;
    --accent:#FF5C7A;
    --reward:#FFD23F;
    --ink:#1A1723;
    --ink-2:#6B6580;
    --paper:#FBFAF7;
    --paper-2:#F2EEE7;
    --line:#E7E3DC;
    --dark:#16121F;
    --radius-card:14px;
    --radius-btn:10px;
    --shadow-card:0 1px 0 rgba(26,23,35,.04), 0 8px 24px rgba(26,23,35,.06);
    --shadow-lift:0 2px 0 rgba(26,23,35,.05), 0 14px 34px rgba(26,23,35,.10);
    --container:1220px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;}
  input{font:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul{list-style:none;padding:0;}
  .num{font-variant-numeric:tabular-nums;}

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

  /* ---------- header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(251,250,247,.97);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:32px;
    height:78px;
    transition:height .18s ease-out;
  }
  .site-header.is-scrolled .header-inner{height:66px;}

  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:12px;height:12px;border-radius:3px;
    background:var(--brand);
    display:block;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-text strong{font-size:17px;font-weight:800;letter-spacing:-.01em;}
  .brand-text em{
    font-style:normal;
    font-size:11px;
    letter-spacing:.14em;
    color:var(--ink-2);
  }

  .primary-nav{display:flex;align-items:center;gap:30px;}
  .nav-item{
    position:relative;
    font-size:15px;
    color:var(--ink-2);
    padding:6px 0;
    transition:color .16s ease-out;
  }
  .nav-item::after{
    content:"";
    position:absolute;left:0;bottom:0;
    height:2px;width:0;
    background:var(--brand);
    transition:width .16s ease-out;
  }
  .nav-item:hover{color:var(--ink);}
  .nav-item:hover::after{width:100%;}
  .nav-item.is-active{color:var(--ink);font-weight:600;}
  .nav-item.is-active::after{width:100%;}

  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
  .btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;
    height:38px;padding:0 18px;
    border:1px solid var(--ink);
    border-radius:var(--radius-btn);
    font-size:14px;
    background:transparent;
    cursor:pointer;
    transition:background .16s ease-out,color .16s ease-out;
  }
  .btn-ghost:hover{background:var(--ink);color:#fff;}
  .btn-ghost:focus-visible{outline:3px solid rgba(108,76,241,.28);outline-offset:2px;}
  .icon-btn{
    width:38px;height:38px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:var(--radius-btn);
    background:transparent;
    color:var(--ink-2);
    cursor:pointer;
    transition:border-color .16s ease-out,color .16s ease-out;
  }
  .icon-btn:hover{border-color:var(--brand);color:var(--brand);}
  .icon-btn:focus-visible{outline:3px solid rgba(108,76,241,.28);outline-offset:2px;}
  .nav-toggle{display:none;}

  /* ---------- drawer ---------- */
  .drawer-overlay{
    position:fixed;inset:0;background:rgba(22,18,31,.34);
    opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
    z-index:70;
  }
  .drawer-overlay.is-open{opacity:1;visibility:visible;}
  .mobile-drawer{
    position:fixed;top:0;right:0;bottom:0;
    width:min(86vw,360px);
    background:var(--paper);
    border-left:1px solid var(--line);
    padding:20px;
    z-index:80;
    transform:translateX(100%);
    transition:transform .22s ease-out;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
  .drawer-title{font-size:13px;letter-spacing:.12em;color:var(--ink-2);}
  .drawer-link{
    display:flex;align-items:center;gap:10px;
    padding:16px 4px;
    border-bottom:1px solid var(--line);
    font-size:16px;
    color:var(--ink);
    transition:color .16s ease-out;
  }
  .drawer-link:hover{color:var(--brand);}
  .drawer-link.is-active{color:var(--brand);font-weight:600;}
  .drawer-link.is-active::before{
    content:"";width:6px;height:6px;border-radius:999px;background:var(--brand);
  }
  .drawer-cta{margin-top:22px;width:100%;}

  /* ---------- buttons ---------- */
  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;
    height:46px;padding:0 24px;
    border:0;border-radius:var(--radius-btn);
    background:var(--brand);color:#fff;
    font-size:15px;font-weight:600;
    cursor:pointer;
    transition:background .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
  }
  .btn-primary:hover{background:var(--brand-strong);transform:translateY(-1px);}
  .btn-primary:focus-visible{outline:3px solid rgba(108,76,241,.35);outline-offset:2px;}
  .btn-outline-light{
    display:inline-flex;align-items:center;justify-content:center;
    height:46px;padding:0 22px;
    border:1px solid rgba(255,255,255,.42);
    border-radius:var(--radius-btn);
    background:transparent;color:#fff;
    font-size:15px;font-weight:600;cursor:pointer;
    transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
  }
  .btn-outline-light:hover{background:#fff;color:var(--dark);border-color:#fff;}
  .btn-outline-light:focus-visible{outline:3px solid rgba(255,255,255,.5);outline-offset:2px;}

  /* ---------- hero ---------- */
  .page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
  .page-hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
    opacity:.18;
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(251,250,247,.88),rgba(251,250,247,.97));
  }
  .page-hero-inner{position:relative;z-index:2;padding:52px 0 64px;}
  .breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-2);}
  .breadcrumb a{transition:color .16s ease-out;}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .current{color:var(--ink);}
  .page-title{
    margin-top:20px;
    font-size:clamp(34px,4.6vw,54px);
    font-weight:800;
    letter-spacing:-.02em;
    line-height:1.15;
    max-width:16em;
  }
  .page-lede{
    margin-top:18px;
    font-size:17px;
    color:var(--ink-2);
    max-width:44em;
  }
  .hero-stats{
    display:flex;flex-wrap:wrap;gap:40px;
    margin-top:34px;
    padding-top:24px;
    border-top:1px solid var(--line);
  }
  .hero-stats li{display:flex;flex-direction:column;gap:2px;}
  .hero-stats strong{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;}
  .hero-stats span{font-size:13px;color:var(--ink-2);}

  /* ---------- section base ---------- */
  .section{padding:96px 0;}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:40px;
    margin-bottom:44px;
  }
  .section-kicker{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.1em;
    color:var(--brand);
    margin-bottom:12px;
  }
  .section-kicker::before{
    content:"";width:4px;height:4px;background:var(--brand);display:block;
  }
  .section-title{
    font-size:clamp(26px,3.1vw,34px);
    font-weight:800;
    letter-spacing:-.02em;
    line-height:1.25;
  }
  .section-note{
    font-size:15px;
    color:var(--ink-2);
    max-width:34em;
  }

  /* ---------- index list ---------- */
  .index-list{border-top:1px solid var(--line);}
  .index-row{
    display:grid;
    grid-template-columns:72px minmax(0,1fr) 40px;
    align-items:center;
    gap:20px;
    min-height:76px;
    padding:14px 16px;
    border-bottom:1px solid var(--line);
    transition:background .16s ease-out;
  }
  .index-row:hover,.index-row:focus-visible{background:var(--paper-2);outline:none;}
  .row-num{
    font-size:15px;font-weight:700;
    color:var(--ink-2);
    font-variant-numeric:tabular-nums;
    transition:color .16s ease-out;
  }
  .index-row:hover .row-num{color:var(--brand);}
  .row-title{font-size:17px;font-weight:600;line-height:1.5;}
  .row-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;}
  .tag{
    display:inline-flex;align-items:center;height:22px;padding:0 9px;
    border-radius:999px;
    background:rgba(108,76,241,.10);
    color:var(--brand);
    font-size:12px;
    letter-spacing:.02em;
  }
  .row-arrow{
    justify-self:end;
    color:var(--ink-2);
    font-size:18px;
    transition:transform .16s ease-out,color .16s ease-out;
  }
  .index-row:hover .row-arrow{transform:translateX(4px);color:var(--brand);}

  /* ---------- points ---------- */
  .points{
    display:grid;
    grid-template-columns:minmax(0,5fr) minmax(0,7fr);
    gap:56px;
    align-items:center;
  }
  .ratio-4-3{
    position:relative;
    aspect-ratio:4 / 3;
    border-radius:var(--radius-card);
    overflow:hidden;
    background:var(--paper-2);
    border:1px solid var(--line);
  }
  .ratio-4-3 img{width:100%;height:100%;object-fit:cover;}
  .check-list{margin-top:26px;border-top:1px solid var(--line);}
  .check-list li{
    display:grid;
    grid-template-columns:44px minmax(0,1fr);
    gap:16px;
    padding:20px 0;
    border-bottom:1px solid var(--line);
  }
  .check-num{
    font-size:13px;font-weight:700;color:var(--brand);
    font-variant-numeric:tabular-nums;
    padding-top:3px;
  }
  .check-list h3{font-size:17px;font-weight:600;line-height:1.5;}
  .check-list p{margin-top:6px;font-size:15px;color:var(--ink-2);line-height:1.8;}

  /* ---------- faq ---------- */
  .faq{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    display:flex;align-items:center;gap:16px;
    width:100%;
    padding:22px 4px;
    background:none;border:0;
    text-align:left;cursor:pointer;
    transition:color .16s ease-out;
  }
  .faq-q:hover{color:var(--brand);}
  .faq-q:focus-visible{outline:3px solid rgba(108,76,241,.28);outline-offset:-2px;}
  .faq-num{
    font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums;flex:0 0 auto;
  }
  .faq-text{font-size:17px;font-weight:600;line-height:1.5;}
  .faq-icon{
    margin-left:auto;
    font-size:20px;line-height:1;
    color:var(--ink-2);
    transition:transform .2s ease-out,color .2s ease-out;
  }
  .faq-item.is-open .faq-icon{color:var(--brand);transform:rotate(45deg);}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .26s ease-out;
  }
  .faq-a p{
    padding:0 4px 24px 46px;
    font-size:15.5px;
    color:var(--ink-2);
    line-height:1.85;
  }

  /* ---------- related ---------- */
  .related-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:28px;
  }
  .related-card{
    display:grid;
    grid-template-columns:200px minmax(0,1fr);
    gap:24px;
    padding:20px;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--paper);
    box-shadow:var(--shadow-card);
    transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  }
  .related-card:hover{
    transform:translateY(-2px);
    box-shadow:var(--shadow-lift);
    border-color:var(--brand);
  }
  .related-media{
    aspect-ratio:16 / 10;
    border-radius:10px;
    overflow:hidden;
    background:var(--paper-2);
  }
  .related-media img{width:100%;height:100%;object-fit:cover;}
  .related-card h3{font-size:19px;font-weight:700;letter-spacing:-.01em;}
  .related-card p{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.8;}
  .text-arrow{
    display:inline-flex;align-items:center;gap:6px;
    margin-top:14px;
    font-size:14px;font-weight:600;color:var(--brand);
    border-bottom:1px solid transparent;
    transition:border-color .16s ease-out;
  }
  .text-arrow span{transition:transform .16s ease-out;}
  .related-card:hover .text-arrow{border-color:var(--brand);}
  .related-card:hover .text-arrow span{transform:translateX(4px);}

  /* ---------- cta band ---------- */
  .cta-band{
    position:relative;
    background:var(--dark);
    color:#fff;
    padding:76px 0;
    overflow:hidden;
  }
  .cta-band::before{
    content:"";
    position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:24px 24px;
    opacity:.85;
  }
  .cta-inner{
    position:relative;z-index:2;
    display:flex;align-items:center;justify-content:space-between;
    gap:48px;
  }
  .cta-kicker{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.1em;
    color:var(--brand-soft);
    margin-bottom:12px;
  }
  .cta-kicker::before{content:"";width:4px;height:4px;background:var(--reward);display:block;}
  .cta-title{
    font-size:clamp(24px,2.8vw,32px);
    font-weight:800;
    letter-spacing:-.02em;
    line-height:1.3;
    max-width:20em;
  }
  .cta-text{
    margin-top:14px;
    font-size:15px;
    color:rgba(255,255,255,.72);
    max-width:34em;
  }
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

  /* ---------- footer ---------- */
  .site-footer{
    background:var(--dark);
    color:rgba(255,255,255,.76);
    padding:72px 0 28px;
    border-top:1px solid rgba(255,255,255,.08);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1.2fr;
    gap:40px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .footer-brand .brand-mark{background:var(--brand);}
  .brand-name{display:flex;flex-direction:column;line-height:1.2;}
  .brand-name strong{font-size:17px;font-weight:800;color:#fff;}
  .brand-name em{font-style:normal;font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.55);}
  .footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:30em;}
  .footer-col h4{
    font-size:13px;
    letter-spacing:.12em;
    color:rgba(255,255,255,.5);
    margin-bottom:16px;
    font-weight:600;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:12px;}
  .footer-col li{font-size:14px;color:rgba(255,255,255,.66);}
  .footer-col a{
    font-size:14px;
    color:rgba(255,255,255,.72);
    border-bottom:1px solid transparent;
    transition:color .16s ease-out,border-color .16s ease-out;
  }
  .footer-col a:hover{color:var(--brand-soft);border-color:var(--brand-soft);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    margin-top:52px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.10);
    font-size:13px;
    color:rgba(255,255,255,.52);
  }

  /* ---------- motion ---------- */
  .reveal{
    opacity:0;
    transform:translateY(12px);
    transition:opacity .5s ease-out,transform .5s ease-out;
  }
  .reveal.is-in{opacity:1;transform:none;}

  /* ---------- responsive ---------- */
  @media (max-width:1280px){
    .container{padding:0 36px;}
  }
  @media (max-width:1024px){
    .container{padding:0 24px;}
    .section{padding:76px 0;}
    .points{grid-template-columns:minmax(0,1fr);gap:36px;}
    .related-grid{grid-template-columns:minmax(0,1fr);}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
    .cta-inner{flex-direction:column;align-items:flex-start;gap:32px;}
  }
  @media (max-width:900px){
    .primary-nav{display:none;}
    .nav-toggle{display:inline-flex;}
    .header-actions .btn-ghost{display:none;}
    .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  }
  @media (max-width:768px){
    .header-inner{height:68px;}
    .site-header.is-scrolled .header-inner{height:60px;}
    .section{padding:56px 0;}
    .page-hero-inner{padding:36px 0 48px;}
    .hero-stats{gap:28px;}
    .related-card{grid-template-columns:minmax(0,1fr);gap:16px;}
    .index-row{grid-template-columns:48px minmax(0,1fr) 26px;gap:12px;padding:14px 8px;}
    .row-title{font-size:16px;}
    .faq-text{font-size:16px;}
    .faq-a p{padding-left:0;}
  }
  @media (max-width:520px){
    .container{padding:0 20px;}
    .page-title{font-size:32px;}
    .hero-stats{gap:22px;padding-top:20px;}
    .hero-stats strong{font-size:17px;}
    .check-list li{grid-template-columns:34px minmax(0,1fr);gap:12px;}
    .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
    .cta-actions{width:100%;}
    .cta-actions .btn-primary,.cta-actions .btn-outline-light{flex:1 1 auto;}
  }
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *,*::before,*::after{transition:none !important;animation:none !important;}
    .reveal{opacity:1;transform:none;}
  }

/* roulang page: category2 */
:root {
    --brand: #6C4CF1;
    --brand-strong: #5A3BE0;
    --accent: #FF5C7A;
    --reward: #FFD23F;
    --ink: #1A1723;
    --ink-2: #6B6580;
    --paper: #FBFAF7;
    --paper-2: #F2EEE7;
    --line: #E7E3DC;
    --dark: #16121F;
    --radius-card: 14px;
    --radius-btn: 10px;
    --shadow-card: 0 1px 0 rgba(26, 23, 35, .04), 0 8px 24px rgba(26, 23, 35, .06);
    --shadow-lift: 0 1px 0 rgba(26, 23, 35, .04), 0 16px 36px rgba(26, 23, 35, .12);
    --ease: cubic-bezier(.22, .61, .36, 1);
  }

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

  html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

  body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.85;
    font-variant-numeric: tabular-nums;
    -webkit-font-smoothing: antialiased;
  }

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

  :focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(108, 76, 241, .22); border-radius: 6px; }

  body .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
  }

  /* ============ 顶部导航 ============ */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 90;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }

  .header-inner {
    display: flex;
    align-items: center;
    gap: 28px;
    height: 78px;
    transition: height .18s var(--ease);
  }

  .site-header.is-scrolled .header-inner { height: 66px; }

  .brand { display: flex; align-items: center; gap: 10px; flex: none; }

  .brand-mark {
    width: 12px; height: 12px;
    border-radius: 3px;
    background: var(--brand);
    flex: none;
  }

  .brand-name { display: flex; flex-direction: column; line-height: 1.15; }
  .brand-name strong { font-size: 17px; font-weight: 800; letter-spacing: -.01em; }
  .brand-name em { font-style: normal; font-size: 11px; letter-spacing: .16em; color: var(--ink-2); }

  .primary-nav {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-left: auto;
    margin-right: auto;
  }

  .nav-item {
    position: relative;
    font-size: 15px;
    color: var(--ink);
    padding: 6px 0;
    white-space: nowrap;
    transition: color .16s var(--ease);
  }

  .nav-item::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 2px;
    background: var(--brand);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .16s var(--ease);
  }

  .nav-item:hover { color: var(--brand); }
  .nav-item:hover::after,
  .nav-item.is-active::after { transform: scaleX(1); }

  .header-actions { display: flex; align-items: center; gap: 12px; flex: none; }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    border: 1px solid transparent;
    white-space: nowrap;
    transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease);
  }

  .btn-sm { padding: 9px 18px; font-size: 14px; }

  .btn-primary { background: var(--brand); color: #fff; border-color: var(--brand); }
  .btn-primary:hover { background: var(--brand-strong); border-color: var(--brand-strong); transform: translateY(-1px); }

  .btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
  .btn-outline:hover { background: var(--ink); color: #fff; }

  .btn-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .45); }
  .btn-light:hover { background: #fff; color: var(--dark); border-color: #fff; }

  .icon-btn {
    width: 40px; height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: var(--radius-btn);
    background: transparent;
    color: var(--ink);
    transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
  }

  .icon-btn:hover { border-color: var(--brand); color: var(--brand); }
  .menu-toggle { display: none; }

  .search-panel { border-top: 1px solid var(--line); background: var(--paper-2); padding: 14px 0; }
  .search-panel input {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-btn);
  }
  .search-panel input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(108, 76, 241, .18); }

  .mobile-drawer {
    background: var(--paper);
    border-top: 1px solid var(--line);
    padding: 8px 0 16px;
  }
  .mobile-drawer .drawer-top { display: flex; justify-content: flex-end; padding: 8px 0; }
  .mobile-drawer a {
    display: block;
    font-size: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
  }
  .mobile-drawer a.is-active { color: var(--brand); font-weight: 700; }
  .mobile-drawer a.is-active::before {
    content: "";
    display: inline-block;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--brand);
    margin-right: 10px;
    vertical-align: middle;
  }

  /* ============ 页面主体节奏 ============ */
  .page-main { display: block; }
  .page-main > section + section { margin-top: 88px; }

  .section-head { max-width: 740px; }
  .section-head .eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--brand);
    margin-bottom: 10px;
  }
  .section-head h2 {
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 800;
    line-height: 1.28;
    letter-spacing: -.01em;
  }
  .section-head p { margin-top: 12px; font-size: 15px; color: var(--ink-2); }

  /* ============ 分类页头 ============ */
  .cat-hero {
    position: relative;
    padding: 60px 0 56px;
    background-color: var(--paper);
    background-image: linear-gradient(rgba(251, 250, 247, .93), rgba(251, 250, 247, .98)), url("/assets/images/backpic/back-2.png");
    background-size: cover;
    background-position: center;
    border-bottom: 1px solid var(--line);
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: var(--ink-2);
    margin-bottom: 22px;
  }
  .breadcrumb a:hover { color: var(--brand); text-decoration: underline; }
  .breadcrumb .sep { color: #C4BFB6; }

  .cat-hero h1 {
    max-width: 900px;
    font-size: clamp(32px, 4.6vw, 54px);
    font-weight: 800;
    line-height: 1.16;
    letter-spacing: -.02em;
  }

  .cat-hero .hero-sub {
    max-width: 720px;
    margin-top: 18px;
    font-size: 17px;
    color: var(--ink-2);
  }

  .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

  .hero-stats {
    display: flex;
    flex-wrap: wrap;
    margin-top: 42px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
  }
  .hero-stats li {
    flex: 1 1 170px;
    padding: 0 24px;
    border-right: 1px solid var(--line);
  }
  .hero-stats li:first-child { padding-left: 0; }
  .hero-stats li:last-child { border-right: none; }
  .stat-num { display: block; font-size: 24px; font-weight: 800; letter-spacing: -.02em; }
  .stat-num em { font-style: normal; font-size: 14px; font-weight: 700; color: var(--brand); margin-left: 4px; }
  .stat-label { display: block; font-size: 13px; color: var(--ink-2); margin-top: 2px; }

  /* ============ 非对称图文卡 ============ */
  .guide-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
    margin-top: 42px;
  }

  .guide-card {
    grid-column: span 12;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
  }
  .guide-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lift);
    border-color: var(--brand);
  }

  .guide-link { display: flex; flex-direction: column; height: 100%; }

  .guide-media {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;
    background: var(--paper-2);
    overflow: hidden;
  }
  .guide-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s var(--ease); }
  .guide-card:hover .guide-media img { transform: scale(1.03); }

  .guide-body { padding: 22px 24px 24px; display: flex; flex-direction: column; }

  .card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }

  .badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    line-height: 1.5;
    background: rgba(108, 76, 241, .10);
    color: var(--brand);
  }
  .badge-quiet { background: var(--paper-2); color: var(--ink-2); }
  .badge-accent { background: rgba(255, 92, 122, .12); color: var(--accent); }

  .guide-title {
    display: block;
    font-size: 20px;
    font-weight: 800;
    line-height: 1.45;
    letter-spacing: -.01em;
    color: var(--ink);
  }
  .guide-card:hover .guide-title { color: var(--brand); }

  .guide-desc {
    display: block;
    margin-top: 10px;
    font-size: 14.5px;
    line-height: 1.85;
    color: var(--ink-2);
  }

  .arrow-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 18px;
    font-size: 14px;
    font-weight: 600;
    color: var(--brand);
    position: relative;
    align-self: flex-start;
  }
  .arrow-link i { font-style: normal; transition: transform .18s var(--ease); }
  .arrow-link::after {
    content: "";
    position: absolute;
    left: 0; right: 22px; bottom: -3px;
    height: 1px;
    background: var(--brand);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .18s var(--ease);
  }
  .guide-card:hover .arrow-link::after { transform: scaleX(1); }
  .guide-card:hover .arrow-link i { transform: translateX(4px); }

  @media (min-width: 1024px) {
    .span-7 { grid-column: span 7; }
    .span-5 { grid-column: span 5; }
    .span-7 .guide-link { flex-direction: row; }
    .span-7 .guide-media { flex: 0 0 46%; aspect-ratio: auto; }
    .span-7 .guide-media img { height: 100%; }
    .span-7 .guide-body { flex: 1 1 54%; justify-content: center; padding: 30px 32px; }
    .span-7 .guide-title { font-size: 23px; }
  }

  /* ============ 适用场景 ============ */
  .scene-wrap {
    display: grid;
    grid-template-columns: 1fr 1.25fr;
    gap: 56px;
    align-items: start;
  }

  .scene-intro h2 {
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 800;
    line-height: 1.28;
    letter-spacing: -.01em;
  }
  .scene-intro p { margin-top: 14px; font-size: 15px; color: var(--ink-2); }

  .scene-list { border-top: 1px solid var(--line); }
  .scene-list li {
    display: grid;
    grid-template-columns: 148px 1fr;
    gap: 20px;
    padding: 22px 0;
    border-bottom: 1px solid var(--line);
    transition: background .18s var(--ease);
  }
  .scene-list li:hover { background: var(--paper-2); }
  .scene-list strong { font-size: 15px; font-weight: 700; color: var(--brand); }
  .scene-list span { font-size: 14.5px; color: var(--ink-2); }

  /* ============ 上手流程 ============ */
  .flow-band { background: var(--paper-2); padding: 64px 0; border-radius: 0; }

  .flow-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    margin-top: 42px;
  }
  .flow-list li { position: relative; padding-top: 22px; }
  .flow-list li::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 44px; height: 2px;
    background: var(--brand);
  }
  .flow-no {
    display: block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--brand);
    margin-bottom: 8px;
  }
  .flow-list h3 { font-size: 18px; font-weight: 800; line-height: 1.5; }
  .flow-list p { margin-top: 8px; font-size: 14px; color: var(--ink-2); line-height: 1.8; }

  /* ============ FAQ ============ */
  .faq-list { margin-top: 36px; border-top: 1px solid var(--line); }

  .faq-item { border-bottom: 1px solid var(--line); }

  .faq-item summary {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 22px 0;
    cursor: pointer;
    list-style: none;
  }
  .faq-item summary::-webkit-details-marker { display: none; }

  .faq-no {
    flex: none;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .06em;
    color: var(--ink-2);
    transition: color .18s var(--ease);
  }
  .faq-q { flex: 1; font-size: 16.5px; font-weight: 700; line-height: 1.6; }

  .faq-icon { position: relative; width: 16px; height: 16px; flex: none; }
  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--ink-2);
    transition: transform .18s var(--ease), background .18s var(--ease);
  }
  .faq-icon::before { left: 0; right: 0; top: 7.25px; height: 1.5px; }
  .faq-icon::after { top: 0; bottom: 0; left: 7.25px; width: 1.5px; }

  .faq-item[open] .faq-no { color: var(--brand); }
  .faq-item[open] .faq-icon::before { background: var(--brand); }
  .faq-item[open] .faq-icon::after { transform: scaleY(0); background: var(--brand); }

  .faq-a { padding: 0 0 24px 34px; }
  .faq-a p { font-size: 15px; color: var(--ink-2); line-height: 1.9; max-width: 760px; }

  /* ============ 交叉推荐 ============ */
  .cross-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 36px;
  }

  .cross-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 22px 24px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: transform .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
  }
  .cross-card:hover { transform: translateY(-2px); border-color: var(--brand); box-shadow: var(--shadow-lift); }

  .cross-thumb {
    flex: none;
    width: 96px; height: 68px;
    border-radius: 10px;
    overflow: hidden;
    background: var(--paper-2);
  }
  .cross-thumb img { width: 100%; height: 100%; object-fit: cover; }

  .cross-body h3 { font-size: 17px; font-weight: 800; }
  .cross-body p { margin-top: 6px; font-size: 13.5px; color: var(--ink-2); line-height: 1.75; }

  .cross-arrow {
    margin-left: auto;
    flex: none;
    color: var(--brand);
    font-size: 18px;
    transition: transform .18s var(--ease);
  }
  .cross-card:hover .cross-arrow { transform: translateX(4px); }

  /* ============ 深色 CTA ============ */
  .cta-band {
    position: relative;
    background: var(--dark);
    color: #fff;
    padding: 68px 0;
    overflow: hidden;
    border-radius: var(--radius-card);
  }
  .cta-band::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px);
    background-size: 22px 22px;
    pointer-events: none;
  }
  .cta-band > .container { position: relative; }
  .cta-inner {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .cta-inner h2 {
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 800;
    line-height: 1.28;
    letter-spacing: -.01em;
  }
  .cta-inner p { margin-top: 14px; font-size: 15px; color: #B9B1CC; max-width: 520px; }

  .cta-form { display: flex; gap: 12px; }
  .cta-form input {
    flex: 1;
    padding: 12px 16px;
    font-size: 15px;
    color: var(--ink);
    background: #fff;
    border: 1px solid transparent;
    border-radius: var(--radius-btn);
  }
  .cta-form input:focus { outline: none; box-shadow: 0 0 0 3px rgba(108, 76, 241, .35); }

  .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }

  .cta-note { margin-top: 16px; font-size: 13px; color: #8C82A6; }

  /* ============ 页脚 ============ */
  .site-footer {
    background: var(--dark);
    color: #CFC9DA;
    padding: 72px 0 28px;
    margin-top: 96px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 40px;
  }

  .footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
  .footer-brand .brand-name strong { color: #fff; }
  .footer-brand .brand-name em { color: #9C93B3; }

  .footer-about { font-size: 14px; line-height: 1.9; color: #A79EBE; max-width: 340px; }

  .footer-col h4 {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
    color: #fff;
    margin-bottom: 16px;
  }
  .footer-col ul li { font-size: 14px; color: #A79EBE; margin-bottom: 10px; }
  .footer-col a { transition: color .16s var(--ease); }
  .footer-col a:hover { color: #fff; text-decoration: underline; }

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 46px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, .12);
    font-size: 13px;
    color: #8C82A6;
  }

  /* ============ 进场动画 ============ */
  .reveal { opacity: 0; transform: translateY(12px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
  .reveal.is-in { opacity: 1; transform: none; }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  }

  /* ============ 响应式 ============ */
  @media (max-width: 1280px) {
    body .container { max-width: 1160px; }
  }

  @media (max-width: 1024px) {
    body .container { padding: 0 24px; }
    .primary-nav { display: none; }
    .menu-toggle { display: inline-flex; }
    .page-main > section + section { margin-top: 68px; }
    .scene-wrap { grid-template-columns: 1fr; gap: 32px; }
    .flow-list { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .cta-inner { grid-template-columns: 1fr; gap: 28px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  }

  @media (max-width: 768px) {
    body { font-size: 15.5px; }
    body .container { padding: 0 20px; }
    .header-inner { height: 66px; gap: 16px; }
    .site-header.is-scrolled .header-inner { height: 60px; }
    .header-actions .btn-sm { display: none; }
    .cat-hero { padding: 40px 0 40px; }
    .cat-hero h1 { font-size: 32px; }
    .cat-hero .hero-sub { font-size: 15.5px; }
    .hero-stats { margin-top: 30px; }
    .hero-stats li {
      flex: 1 1 50%;
      padding: 10px 0;
      border-right: none;
      border-bottom: 1px solid var(--line);
    }
    .hero-stats li:first-child { padding-left: 0; }
    .hero-stats li:last-child { border-bottom: none; }
    .page-main > section + section { margin-top: 56px; }
    .guide-grid { gap: 18px; margin-top: 30px; }
    .guide-body { padding: 18px 20px 20px; }
    .guide-title { font-size: 18px; }
    .scene-list li { grid-template-columns: 1fr; gap: 6px; padding: 18px 0; }
    .flow-band { padding: 44px 0; }
    .flow-list { grid-template-columns: 1fr; gap: 20px; margin-top: 30px; }
    .cross-grid { grid-template-columns: 1fr; gap: 16px; }
    .cross-thumb { width: 78px; height: 58px; }
    .cta-band { padding: 44px 0; border-radius: 12px; }
    .cta-form { flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .site-footer { padding: 52px 0 24px; margin-top: 64px; }
    .faq-a { padding-left: 0; }
  }

  @media (max-width: 520px) {
    .cat-hero h1 { font-size: 30px; line-height: 1.2; }
    .section-head h2 { font-size: 23px; }
    .hero-actions .btn { flex: 1 1 100%; }
    .cross-card { flex-direction: column; align-items: flex-start; }
    .cross-arrow { margin-left: 0; }
  }

/* roulang page: category3 */
:root{
  --brand:#6C4CF1;
  --brand-strong:#5A3BE0;
  --accent:#FF5C7A;
  --reward:#FFD23F;
  --ink:#1A1723;
  --ink-2:#6B6580;
  --paper:#FBFAF7;
  --paper-2:#F2EEE7;
  --line:#E7E3DC;
  --dark:#16121F;
  --radius-card:14px;
  --radius-btn:9px;
  --shadow-card:0 1px 0 rgba(26,23,35,.04), 0 8px 24px rgba(26,23,35,.06);
  --shadow-hover:0 2px 0 rgba(26,23,35,.05), 0 16px 34px rgba(26,23,35,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
::selection{background:rgba(108,76,241,.18);}

.container{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline:40px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  height:78px;
  transition:height .18s var(--ease);
}
.site-header.is-scrolled .header-inner{height:68px;}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.brand-mark{
  position:relative;
  width:34px;height:34px;
  border-radius:9px;
  background:var(--brand);
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:11px;
  border-radius:3px;
  background:var(--reward);
}
.brand-text strong{
  display:block;
  font-size:17px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.1;
  color:var(--ink);
}
.brand-text em{
  display:block;
  font-style:normal;
  font-size:11px;
  letter-spacing:.18em;
  color:var(--ink-2);
  margin-top:4px;
  text-transform:none;
}

.primary-nav{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-item{
  position:relative;
  display:inline-block;
  font-size:15px;
  color:var(--ink-2);
  padding:6px 0;
  transition:color .16s ease-out;
}
.nav-item::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--brand);
  transition:width .16s ease-out;
}
.nav-item:hover{color:var(--ink);}
.nav-item:hover::after{width:100%;}
.nav-item.is-active{color:var(--ink);font-weight:600;}
.nav-item.is-active::after{width:100%;}

.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:38px;
  padding:0 18px;
  border:1px solid var(--ink);
  border-radius:var(--radius-btn);
  background:transparent;
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:background .16s ease-out,color .16s ease-out,transform .16s ease-out;
  white-space:nowrap;
}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:transparent;
  color:var(--ink-2);
  cursor:pointer;
  transition:border-color .16s ease-out,color .16s ease-out;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);}
.icon-btn svg{width:18px;height:18px;stroke-width:1.5;}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:38px;height:38px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:transparent;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:16px;height:1.5px;
  margin-inline:auto;
  background:var(--ink);
  border-radius:2px;
}
.nav-close{display:none;}
.nav-scrim{
  position:fixed;
  inset:0;
  background:rgba(22,18,31,.42);
  z-index:65;
}

/* ---------- 页头（分类页 Hero） ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center 30%;
}
.page-hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(251,250,247,.93) 0%, rgba(251,250,247,.97) 62%, rgba(251,250,247,1) 100%);
}
.page-hero-inner{
  position:relative;
  padding-top:56px;
  padding-bottom:72px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--ink-2);
  margin-bottom:26px;
}
.breadcrumb a{transition:color .16s ease-out;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span[aria-hidden]{color:#C4BFB6;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(108,76,241,.10);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(32px,4.4vw,52px);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
  max-width:16em;
}
.hero-sub{
  margin-top:18px;
  max-width:34em;
  font-size:17px;
  color:var(--ink-2);
  line-height:1.85;
}

.stat-strip{
  margin-top:44px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
}
.stat-item{
  padding:22px 24px 0 24px;
  border-left:1px solid var(--line);
}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{
  display:block;
  font-size:24px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
}
.stat-label{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:var(--ink-2);
}

/* ---------- 通用板块头 ---------- */
.section{padding:92px 0;}
.section--tight{padding:72px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
  margin-bottom:8px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:800;
  letter-spacing:-.015em;
  line-height:1.3;
}
.section-head p{
  max-width:36em;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.8;
}
.section-note{
  font-size:13px;
  color:var(--ink-2);
  white-space:nowrap;
}

/* ---------- 公告清单 ---------- */
.notice-list{border-top:1px solid var(--line);}
.notice-row{
  display:grid;
  grid-template-columns:112px 1fr 28px;
  align-items:start;
  gap:28px;
  padding:26px 16px 26px 4px;
  border-bottom:1px solid var(--line);
  transition:background .16s ease-out;
}
.notice-row:hover{background:var(--paper-2);}
.notice-row:hover .notice-arrow{transform:translateX(4px);color:var(--brand);}
.notice-row:hover .notice-title{color:var(--brand-strong);}
.notice-date{
  padding-top:2px;
  font-size:13px;
  color:var(--ink-2);
  line-height:1.5;
}
.notice-date b{
  display:block;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.01em;
}
.notice-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:10px;
}
.notice-meta time{
  font-size:12px;
  color:var(--ink-2);
  letter-spacing:.02em;
}
.notice-title{
  font-size:18px;
  font-weight:700;
  line-height:1.5;
  letter-spacing:-.005em;
  transition:color .16s ease-out;
}
.notice-desc{
  margin-top:8px;
  max-width:56em;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.8;
}
.notice-arrow{
  align-self:center;
  font-size:18px;
  color:#C4BFB6;
  transition:transform .16s ease-out,color .16s ease-out;
}

.badge{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  background:rgba(108,76,241,.10);
  color:var(--brand);
  white-space:nowrap;
}
.badge--accent{background:rgba(255,92,122,.13);color:#D5395C;}
.badge--reward{background:rgba(255,210,63,.24);color:#8A6A00;}
.badge--muted{background:var(--paper-2);color:var(--ink-2);}

.list-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  margin-top:32px;
  font-size:14px;
  color:var(--ink-2);
  flex-wrap:wrap;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .16s ease-out,color .16s ease-out,transform .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-1px);}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-reward{
  background:transparent;
  border-color:rgba(255,210,63,.5);
  color:var(--reward);
}
.btn-reward:hover{border-color:var(--reward);background:rgba(255,210,63,.10);}
.btn:focus-visible,
.icon-btn:focus-visible,
.nav-toggle:focus-visible,
.btn-ghost:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(108,76,241,.20);
}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  position:relative;
}
.btn-link i{
  font-style:normal;
  transition:transform .16s ease-out;
}
.btn-link::after{
  content:"";
  position:absolute;
  left:0;bottom:-4px;
  height:1px;width:0;
  background:var(--brand);
  transition:width .16s ease-out;
}
.btn-link:hover::after{width:100%;}
.btn-link:hover i{transform:translateX(4px);}

/* ---------- 类型与影响范围 ---------- */
.split{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:64px;
  align-items:start;
}
.type-row{
  display:grid;
  grid-template-columns:52px 1fr;
  gap:20px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
}
.type-row:first-child{padding-top:8px;}
.type-no{
  font-size:13px;
  font-weight:700;
  color:var(--ink-2);
  letter-spacing:.06em;
  padding-top:3px;
}
.type-row h3{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
}
.type-row p{
  margin-top:8px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.8;
}
.split-figure{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--paper-2);
}
.split-figure img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
}
.split-figure figcaption{
  padding:14px 18px;
  font-size:12.5px;
  color:var(--ink-2);
  border-top:1px solid var(--line);
  background:var(--paper);
}

/* ---------- 发布流程 ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--line);
}
.flow-step{
  padding:28px 26px 30px 0;
  border-right:1px solid var(--line);
  padding-left:26px;
}
.flow-step:first-child{padding-left:0;}
.flow-step:last-child{border-right:0;}
.flow-no{
  display:block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--brand);
  margin-bottom:14px;
}
.flow-step h3{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
}
.flow-step p{
  margin-top:10px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.8;
}

/* ---------- FAQ ---------- */
.faq-wrap{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:grid;
  grid-template-columns:48px 1fr 24px;
  align-items:center;
  gap:16px;
  padding:24px 4px;
  font-size:17px;
  font-weight:700;
  line-height:1.6;
  transition:color .16s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-strong);}
.faq-no{
  font-size:13px;
  font-weight:700;
  color:var(--ink-2);
  letter-spacing:.06em;
}
.faq-sign{
  position:relative;
  width:16px;height:16px;
  justify-self:end;
}
.faq-sign::before,
.faq-sign::after{
  content:"";
  position:absolute;
  left:0;top:7.5px;
  width:16px;height:1.5px;
  background:var(--ink-2);
  transition:transform .18s ease-out,background .18s ease-out;
}
.faq-sign::after{transform:rotate(90deg);}
.faq-item[open] .faq-sign::before{background:var(--brand);}
.faq-item[open] .faq-sign::after{transform:rotate(0deg);background:var(--brand);}
.faq-answer{
  padding:0 60px 26px 64px;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.9;
  max-width:62em;
}

/* ---------- 深色 CTA ---------- */
.cta-band{
  position:relative;
  background:var(--dark);
  color:#fff;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.06;
}
.cta-inner{
  position:relative;
  padding:76px 0;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.cta-inner h2{
  font-size:clamp(24px,2.8vw,34px);
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.015em;
}
.cta-inner p{
  margin-top:16px;
  font-size:15px;
  color:rgba(255,255,255,.68);
  line-height:1.85;
  max-width:30em;
}
.cta-form{
  display:flex;
  gap:12px;
  margin-top:0;
}
.cta-form input{
  flex:1 1 auto;
  min-width:0;
  height:44px;
  padding:0 16px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:15px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.cta-form input::placeholder{color:rgba(255,255,255,.45);}
.cta-form input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(108,76,241,.24);
}
.cta-actions{
  display:flex;
  align-items:center;
  gap:22px;
  margin-top:22px;
  flex-wrap:wrap;
  font-size:14px;
}
.cta-actions .link-plain{
  color:rgba(255,255,255,.72);
  position:relative;
  transition:color .16s ease-out;
}
.cta-actions .link-plain::after{
  content:"";
  position:absolute;
  left:0;bottom:-4px;
  height:1px;width:0;
  background:var(--reward);
  transition:width .16s ease-out;
}
.cta-actions .link-plain:hover{color:#fff;}
.cta-actions .link-plain:hover::after{width:100%;}

/* ---------- 交叉推荐 ---------- */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:28px;
}
.cross-card{
  display:grid;
  grid-template-columns:180px 1fr;
  gap:24px;
  align-items:center;
  padding:20px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--paper);
  box-shadow:var(--shadow-card);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s ease-out;
}
.cross-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:var(--brand);
}
.cross-card img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:10px;
  background:var(--paper-2);
}
.cross-card h3{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
}
.cross-card p{
  margin-top:8px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.75;
}
.cross-card .btn-link{margin-top:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  padding-top:70px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:52px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.footer-brand .brand-mark{
  width:30px;height:30px;border-radius:8px;
}
.footer-brand .brand-mark::after{inset:10px;}
.brand-name strong{
  display:block;
  font-size:16px;
  font-weight:800;
  line-height:1.1;
  color:var(--ink);
}
.brand-name em{
  display:block;
  font-style:normal;
  font-size:11px;
  letter-spacing:.18em;
  color:var(--ink-2);
  margin-top:4px;
}
.footer-about{
  font-size:14px;
  color:var(--ink-2);
  line-height:1.85;
  max-width:26em;
}
.footer-col h4{
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--ink);
  margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px;}
.footer-col a,
.footer-col span{
  font-size:14px;
  color:var(--ink-2);
  transition:color .16s ease-out;
}
.footer-col a:hover{color:var(--brand);text-decoration:underline;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:22px 0 30px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-2);
}

/* ---------- 动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s ease-out,transform .5s ease-out;
}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  *{transition-duration:.01ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding-inline:24px;}
  .primary-nav{
    position:fixed;
    top:0;right:0;bottom:0;
    width:min(86vw,340px);
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:24px 24px 40px;
    background:var(--paper);
    box-shadow:-18px 0 44px rgba(26,23,35,.14);
    transform:translateX(102%);
    transition:transform .22s var(--ease);
    z-index:70;
    overflow-y:auto;
  }
  .primary-nav.is-open{transform:translateX(0);}
  .nav-item{
    padding:16px 0;
    font-size:16px;
    border-bottom:1px solid var(--line);
    color:var(--ink);
  }
  .nav-item::after{display:none;}
  .nav-item.is-active{font-weight:700;}
  .nav-item.is-active::before{
    content:"";
    display:inline-block;
    width:5px;height:5px;
    border-radius:50%;
    background:var(--brand);
    margin-right:10px;
    vertical-align:middle;
  }
  .nav-close{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    align-self:flex-end;
    width:36px;height:36px;
    margin-bottom:14px;
    border:1px solid var(--line);
    border-radius:var(--radius-btn);
    background:transparent;
    color:var(--ink-2);
    cursor:pointer;
  }
  .nav-close:hover{border-color:var(--brand);color:var(--brand);}
  .nav-toggle{display:flex;}
  .split{grid-template-columns:1fr;gap:44px;}
  .split-figure img{aspect-ratio:16/10;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow-step:nth-child(2){border-right:0;}
  .flow-step:nth-child(1),
  .flow-step:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-inner{grid-template-columns:1fr;gap:34px;padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
}

@media (max-width:768px){
  .header-inner{height:66px;gap:16px;}
  .site-header.is-scrolled .header-inner{height:60px;}
  .header-actions .btn-ghost{display:none;}
  .page-hero-inner{padding-top:36px;padding-bottom:52px;}
  .hero-sub{font-size:15.5px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:34px;}
  .stat-item{padding:18px 18px 0 18px;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .section{padding:60px 0;}
  .section--tight{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;padding-bottom:20px;}
  .section-note{white-space:normal;}
  .notice-row{
    grid-template-columns:1fr 24px;
    gap:14px;
    padding:22px 8px 22px 0;
  }
  .notice-date{
    display:flex;
    align-items:baseline;
    gap:10px;
    grid-column:1 / -1;
    padding-top:0;
  }
  .notice-date b{font-size:15px;}
  .notice-title{font-size:16.5px;}
  .notice-desc{font-size:14px;}
  .faq-item summary{grid-template-columns:36px 1fr 20px;gap:12px;font-size:16px;padding:20px 2px;}
  .faq-answer{padding:0 28px 22px 50px;font-size:14.5px;}
  .cross-grid{grid-template-columns:1fr;gap:18px;}
  .cross-card{grid-template-columns:120px 1fr;gap:16px;padding:16px;}
  .footer-grid{grid-template-columns:1fr;gap:34px;padding-bottom:40px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
}

@media (max-width:520px){
  .container{padding-inline:20px;}
  .brand-text strong{font-size:15.5px;}
  .brand-text em{font-size:10px;letter-spacing:.14em;}
  .page-hero h1{font-size:30px;line-height:1.22;}
  .flow{grid-template-columns:1fr;}
  .flow-step{
    border-right:0;
    border-bottom:1px solid var(--line);
    padding-left:0;
    padding-right:0;
  }
  .flow-step:last-child{border-bottom:0;}
  .notice-row{padding-right:0;}
  .cross-card{grid-template-columns:1fr;}
  .cross-card img{aspect-ratio:16/9;}
  .cta-actions{gap:16px;}
  .footer-bottom{font-size:12.5px;}
}