/* roulang page: index */
:root{
  --brand:#6A3BE4;
  --brand-deep:#4A21B8;
  --brand-soft:#EFE9FF;
  --accent:#14D8C0;
  --action:#FF6A3D;
  --ink:#1B1530;
  --ink-2:#4A4360;
  --ink-3:#867FA0;
  --bg:#F7F5FC;
  --card:#FFFFFF;
  --dark:#120C22;
  --line:#E7E2F3;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:12px;
  --pill:999px;
  --shadow:0 4px 16px rgba(106,59,228,.08);
  --shadow-hover:0 12px 32px rgba(106,59,228,.16);
  --grad:linear-gradient(120deg,#6A3BE4 0%,#A24BFF 48%,#FF6A9A 100%);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --container-wide:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-deep)}
button,input,select,textarea{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{line-height:1.25;font-weight:800;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container-wide{width:100%;max-width:var(--container-wide);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--pill);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:26px}
.section-head .sub{margin-top:8px;color:var(--ink-2);font-size:15px;max-width:620px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap}
.link-more span{transition:transform .24s var(--ease)}
.link-more:hover span{transform:translateX(4px)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--pill);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(106,59,228,.28)}
.btn-primary:hover{background:var(--grad);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-deep)}
.btn-light:hover{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.85);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 18px;font-size:13px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}

/* ---------- chips / badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--pill);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:12px;font-weight:600;
}
.chip-action{background:rgba(255,106,61,.12);color:#C9401A}
.chip-accent{background:rgba(20,216,192,.14);color:#0A7F72}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--pill);
  background:rgba(20,216,192,.1);color:#0A7F72;
  font-size:12px;font-weight:600;white-space:nowrap;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.num{font-variant-numeric:tabular-nums}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:center;
  height:64px;
}
.nav-left{display:flex;align-items:center;gap:28px;min-width:0}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:none;
  background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;box-shadow:0 4px 12px rgba(106,59,228,.3);
}
.nav-menu{display:flex;align-items:center;gap:26px;min-width:0}
.nav-menu a{
  position:relative;font-size:15px;color:var(--ink-2);font-weight:500;
  padding:6px 0;white-space:nowrap;transition:color .2s var(--ease);
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:-4px;transform:translateX(-50%) scaleX(0);
  width:16px;height:2px;border-radius:2px;background:var(--grad);
  transition:transform .24s var(--ease);
}
.nav-menu a:hover{color:var(--brand)}
.nav-menu a:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-menu a.active{color:var(--brand);font-weight:600}
.nav-menu a.active::after{transform:translateX(-50%) scaleX(1)}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;
  height:36px;padding:0 12px;border-radius:var(--pill);
  border:1px solid var(--line);background:#fff;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease),width .24s var(--ease);
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(106,59,228,.16)}
.search svg{flex:none;color:var(--ink-3)}
.search input{
  width:120px;border:0;background:transparent;outline:none;
  font-size:13px;color:var(--ink);
  transition:width .24s var(--ease);
}
.search input::placeholder{color:var(--ink-3)}
.search.is-open input,.search:focus-within input{width:170px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);
  align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .24s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(84vw,340px);z-index:120;
  background:#fff;box-shadow:-12px 0 32px rgba(18,12,34,.16);
  transform:translateX(102%);transition:transform .3s var(--ease);
  padding:24px;display:flex;flex-direction:column;gap:8px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer a.drawer-link{
  display:block;padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink);font-weight:600;
}
.drawer a.drawer-link.active{color:var(--brand)}
.drawer .btn{margin-top:18px}
.mask{
  position:fixed;inset:0;background:rgba(18,12,34,.45);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.mask.open{opacity:1;visibility:visible}
body.locked{overflow:hidden}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 80px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(106,59,228,.16) 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:center}
.hero-copy{max-width:560px}
.hero h1{font-size:34px;margin:20px 0 16px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px}
.stat-pill{
  display:flex;align-items:baseline;gap:6px;
  padding:10px 16px;border-radius:var(--pill);
  background:rgba(20,216,192,.08);border:1px solid rgba(20,216,192,.22);
}
.stat-pill b{font-size:24px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1}
.stat-pill i{font-style:normal;font-size:13px;color:#0A7F72;font-weight:600}
.stat-pill small{display:block;font-size:12px;color:var(--ink-3);margin-left:2px}
.hero-visual{position:relative}
.hero-visual::before{
  content:"";position:absolute;inset:-8% -12% -12% -8%;border-radius:50%;
  background:var(--grad);filter:blur(70px);opacity:.22;z-index:0;
}
.hero-frame{
  position:relative;z-index:1;border-radius:20px;overflow:hidden;
  border:1px solid rgba(255,255,255,.6);box-shadow:var(--shadow-hover);
  background:var(--dark);
}
.hero-frame img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(74,33,184,.62),rgba(18,12,34,.72));
}
.float-card{
  position:absolute;z-index:2;background:#fff;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-hover);padding:14px 16px;min-width:158px;
}
.float-card .fc-top{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-3)}
.fc-icon{
  width:22px;height:22px;border-radius:8px;flex:none;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
}
.float-card b{display:block;font-size:22px;font-weight:800;margin-top:6px;font-variant-numeric:tabular-nums}
.float-card small{font-size:12px;color:var(--ink-3)}
.float-card.fc-1{left:-18px;top:14%}
.float-card.fc-2{right:-14px;bottom:10%}

/* ---------- grid & cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(106,59,228,.28)}
.card-media{position:relative;overflow:hidden;background:var(--brand-soft)}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .tagline{position:absolute;left:12px;top:12px}
.card-body{padding:20px 22px 22px}
.card-body h3{font-size:18px;margin-bottom:8px;transition:color .24s var(--ease)}
.card:hover .card-body h3{color:var(--brand)}
.card-body p{font-size:14px;color:var(--ink-2)}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:14px;font-size:12px;color:var(--ink-3)}
.card-feature{grid-column:span 2;display:grid;grid-template-columns:1.1fr 1fr}
.card-feature .card-media img{height:100%;aspect-ratio:auto;min-height:230px}
.card-feature .card-body{display:flex;flex-direction:column;justify-content:center;padding:26px 26px}
.card-feature h3{font-size:21px}
.card-feature p{font-size:15px}
.dot-sep{width:3px;height:3px;border-radius:50%;background:var(--ink-3);display:inline-block;opacity:.7}

/* ---------- news (cms) ---------- */
.news-card{display:flex;flex-direction:column;height:100%}
.news-card .card-media img{aspect-ratio:4/3}
.news-card .card-body{display:flex;flex-direction:column;flex:1}
.news-title{
  font-size:16px;font-weight:700;line-height:1.45;margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand)}
.news-excerpt{
  font-size:13.5px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-3);
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
}
.empty-icon{
  width:52px;height:52px;margin:0 auto 14px;border-radius:16px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;
}
.empty-state p{color:var(--ink-2);font-size:14px;margin-bottom:16px}

/* ---------- reviews ---------- */
.review-wrap{position:relative}
.review-track{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(320px,1fr);
  gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 12px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow);
  transition:box-shadow .24s var(--ease),transform .24s var(--ease);
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:none;
  background:var(--grad);color:#fff;font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
}
.review-top b{font-size:15px;display:block}
.review-top small{font-size:12px;color:var(--ink-3)}
.stars{color:var(--accent);font-size:14px;letter-spacing:2px;margin-bottom:8px}
.review-card p{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.review-foot{margin-top:14px;font-size:12px;color:var(--ink-3);display:flex;justify-content:space-between}
.review-nav{display:flex;gap:10px}
.rv-btn{
  width:40px;height:40px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.rv-btn:hover{background:var(--brand-soft);color:var(--brand);border-color:rgba(106,59,228,.3)}

/* ---------- assurance ---------- */
.assure{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--brand-soft);border-radius:var(--radius-lg);overflow:hidden;
}
.assure-item{padding:26px 24px;border-left:1px solid rgba(106,59,228,.14)}
.assure-item:first-child{border-left:0}
.assure-item b{display:flex;align-items:center;gap:8px;font-size:14px}
.assure-item b i{
  width:20px;height:20px;border-radius:6px;background:var(--brand);color:#fff;font-style:normal;
  font-size:11px;display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.assure-item p{font-size:12px;color:var(--ink-2);margin-top:6px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;
  background:var(--grad);color:#fff;padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 18px 44px rgba(106,59,228,.28);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.16;mix-blend-mode:luminosity;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h3{font-size:24px;color:#fff}
.cta-band p{font-size:14px;color:rgba(255,255,255,.88);margin-top:8px;max-width:520px}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);margin-bottom:12px;overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--grad);opacity:0;transition:opacity .2s var(--ease);
}
.faq-item[open]{border-color:rgba(106,59,228,.3);box-shadow:var(--shadow)}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 56px 20px 24px;
  font-size:16px;font-weight:600;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand);transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-body{padding:0 24px 20px;font-size:14.5px;color:var(--ink-2)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:64px 0 0;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff}
.footer-brand .logo:hover{color:#fff}
.footer-brand p{font-size:13px;margin-top:16px;max-width:300px;color:rgba(255,255,255,.6)}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col li{margin-bottom:10px}
.footer-col a{
  font-size:13px;color:rgba(255,255,255,.7);
  transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-contact p{font-size:13px;margin-bottom:8px;color:rgba(255,255,255,.7)}
.sub-form{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 160px;height:44px;padding:0 14px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  color:#fff;font-size:13px;outline:none;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.sub-form input::placeholder{color:rgba(255,255,255,.42)}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(20,216,192,.2)}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-inner{grid-template-columns:auto 1fr;gap:16px}
  .nav-menu{display:none}
  .nav-right .btn{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:64px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero h1{font-size:30px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .card-feature{grid-column:span 2}
  .assure{grid-template-columns:repeat(2,1fr)}
  .assure-item:nth-child(3){border-left:0}
  .assure-item:nth-child(n+3){border-top:1px solid rgba(106,59,228,.14)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .float-card.fc-1{left:8px}
  .float-card.fc-2{right:8px}
}
@media (max-width:768px){
  .container,.container-wide{padding:0 20px}
  .hero h1{font-size:26px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section{padding:48px 0}
  .grid-4,.grid-3{grid-template-columns:1fr}
  .card-feature{grid-column:span 1;grid-template-columns:1fr}
  .card-feature .card-media img{min-height:0;aspect-ratio:16/10}
  .review-track{grid-auto-columns:minmax(260px,86%)}
  .review-nav{display:none}
  .assure{grid-template-columns:1fr}
  .assure-item{border-left:0;border-top:1px solid rgba(106,59,228,.14)}
  .assure-item:first-child{border-top:0}
  .cta-band{padding:32px 24px;border-radius:22px}
  .cta-band h3{font-size:20px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  .hero-actions .btn{flex:1 1 100%}
  .stat-pill{padding:8px 12px}
  .stat-pill b{font-size:20px}
  .search input,.search:focus-within input{width:96px}
}

/* roulang page: article */
:root{
  --brand:#6A3BE4;
  --brand-deep:#4A21B8;
  --brand-soft:#EFE9FF;
  --accent:#14D8C0;
  --accent-deep:#0B9C8B;
  --action:#FF6A3D;
  --ink:#1B1530;
  --ink-2:#4A4360;
  --ink-3:#867FA0;
  --page:#F7F5FC;
  --card:#FFFFFF;
  --dark:#120C22;
  --line:#E7E2F3;
  --grad:linear-gradient(120deg,#6A3BE4 0%,#A24BFF 48%,#FF6A9A 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 4px 16px rgba(106,59,228,.08);
  --sh-2:0 12px 32px rgba(106,59,228,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{padding:0;margin:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.container-wide{max-width:1280px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:32px;
  align-items:center;
  height:64px;
}
.nav-left{display:flex;align-items:center;gap:28px;min-width:0;}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:12px;}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:17px;color:var(--ink);white-space:nowrap;
}
.logo-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad);
  color:#fff;font-size:16px;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(106,59,228,.28);
}
.nav-menu{display:flex;align-items:center;gap:22px;}
.nav-menu a{
  position:relative;
  font-size:15px;color:var(--ink-2);
  padding:20px 0;
  transition:color .2s var(--ease);
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:12px;
  width:16px;height:2px;border-radius:2px;
  background:var(--grad);
  transform:translateX(-50%) scaleX(0);
  transform-origin:center;
  transition:transform .24s var(--ease);
}
.nav-menu a:hover{color:var(--brand);}
.nav-menu a:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-menu a.active{color:var(--brand);font-weight:600;}
.nav-menu a.active::after{transform:translateX(-50%) scaleX(1);}
.search{
  display:flex;align-items:center;gap:8px;
  height:36px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;
  background:#fff;color:var(--ink-3);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(106,59,228,.14);}
.search input{
  border:0;outline:none;background:transparent;
  width:130px;font-size:14px;
}
.search input::placeholder{color:var(--ink-3);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px rgba(106,59,228,.24);}
.btn-primary:hover{background:var(--grad);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-1px);}
.btn-sm{height:36px;padding:0 18px;font-size:14px;}
.btn-md{height:44px;padding:0 24px;font-size:15px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.nav-toggle{
  display:none;width:40px;height:36px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;width:16px;height:2px;border-radius:2px;background:var(--ink);
  position:relative;transition:background .2s var(--ease);
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .24s var(--ease),top .24s var(--ease);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* ============ breadcrumb & head ============ */
.article-top{padding:28px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);
}
.breadcrumb a{transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--brand);font-weight:600;}
.article-head{max-width:800px;margin:26px auto 0;}
.article-head .chip{margin-bottom:16px;}
.chip{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;
  background:var(--brand-soft);color:var(--brand);
}
.article-head h1{
  font-size:34px;font-weight:800;letter-spacing:-.02em;
  margin-bottom:16px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--ink-3);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.head-divider{height:1px;background:var(--line);margin:26px 0 0;}

/* ============ article body ============ */
.article-main{padding:36px 0 0;}
.article-body{
  max-width:800px;margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:40px 44px;
  box-shadow:var(--sh-1);
  font-size:17px;line-height:1.9;color:var(--ink-2);
}
.article-body > *:first-child{margin-top:0;}
.article-body > p:first-of-type{font-size:18px;color:var(--ink);}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  position:relative;
  font-size:26px;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;
  scroll-margin-top:84px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:var(--grad);
}
.article-body h3{font-size:19px;color:var(--ink);margin:28px 0 12px;}
.article-body h4{font-size:17px;color:var(--ink);margin:22px 0 10px;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(106,59,228,.45);transition:color .2s var(--ease),border-color .2s var(--ease);}
.article-body a:hover{color:var(--action);border-color:var(--action);}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.4em;}
.article-body ul li{list-style:disc;margin:0 0 .55em;}
.article-body ol li{list-style:decimal;margin:0 0 .55em;}
.article-body ul li::marker,.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  background:var(--brand-soft);
  border-left:4px solid var(--accent);
  border-radius:0 16px 16px 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{margin:24px auto;border-radius:var(--r-md);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  margin:24px 0;font-size:15px;
}
.article-body thead th{background:var(--brand-soft);color:var(--ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAF8FF;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  background:var(--brand-soft);color:var(--brand-deep);
  padding:2px 6px;border-radius:6px;font-size:14px;
}
.article-body pre{
  background:var(--dark);color:#EDE9FF;
  padding:18px 20px;border-radius:var(--r-md);overflow-x:auto;font-size:14px;
}
.table-scroll{overflow-x:auto;margin:24px 0;}

/* ============ tags ============ */
.tag-sec{max-width:800px;margin:26px auto 0;}
.tag-sec h2{font-size:15px;color:var(--ink);margin-bottom:12px;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;font-size:13px;font-weight:600;
  background:#fff;color:var(--brand);border:1px solid var(--line);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{background:var(--brand-soft);border-color:var(--brand-soft);transform:translateY(-2px);}

/* ============ pager ============ */
.pager-sec{padding:48px 0 0;}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);max-width:1100px;margin:0 auto;}
.pager-card{
  display:flex;gap:14px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#DCD3F7;}
.pager-card.next{justify-content:flex-end;text-align:right;}
.pager-arrow{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.pager-card:hover .pager-arrow{background:var(--brand);color:#fff;}
.pager-card small{display:block;font-size:12px;color:var(--ink-3);margin-bottom:4px;}
.pager-card strong{font-size:16px;color:var(--ink);font-weight:700;}
.pager-card:hover strong{color:var(--brand);}

/* ============ related ============ */
.related-sec{padding:64px 0 0;}
.sec-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;
  margin-bottom:24px;
}
.sec-head h2{font-size:26px;font-weight:800;}
.sec-head p{font-size:14px;color:var(--ink-3);margin:6px 0 0;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.text-link span{transition:transform .2s var(--ease);}
.text-link:hover span{transform:translateX(3px);}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD3F7;}
.card-cover{aspect-ratio:16/10;overflow:hidden;border-radius:0;}
.card-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s var(--ease);}
.card:hover .card-cover img{transform:scale(1.04);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;font-weight:700;transition:color .2s var(--ease);}
.card:hover .card-body h3{color:var(--brand);}
.card-body p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.7;}
.card-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:12px;color:var(--ink-3);margin-top:auto;
}
.badge-accent{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;
  background:rgba(20,216,192,.12);color:var(--accent-deep);
}
.badge-accent::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent);}

/* ============ back ============ */
.back-wrap{padding:48px 0 72px;text-align:center;}

/* ============ empty state ============ */
.empty-state{
  text-align:center;padding:40px 20px;
  background:#FAF8FF;border:1px dashed var(--line);border-radius:var(--r-md);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;
}
.empty-state p{color:var(--ink-2);margin-bottom:18px;}

/* ============ CTA strip ============ */
.cta-sec{padding:0 0 8px;}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:28px;
  background:var(--grad);
  padding:40px 44px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--sh-2);
}
.cta-card::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.28) 1px,transparent 1px);
  background-size:16px 16px;opacity:.10;pointer-events:none;
}
.cta-text{position:relative;z-index:1;max-width:620px;color:#fff;}
.cta-text h2{font-size:24px;margin-bottom:8px;color:#fff;}
.cta-text p{margin:0;font-size:15px;color:rgba(255,255,255,.9);}
.cta-card .btn{
  position:relative;z-index:1;
  background:#fff;color:var(--brand);
}
.cta-card .btn:hover{background:transparent;color:#fff;box-shadow:inset 0 0 0 1px #fff;transform:translateY(-1px);}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:36px;}
.footer-brand .logo{color:#fff;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.8;margin:0;max-width:320px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-contact p{font-size:14px;margin:0 0 8px;}
.sub-form{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 160px;height:40px;padding:0 14px;
  border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;outline:none;font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:rgba(255,255,255,.5);}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(20,216,192,.2);}
.footer-bottom{
  margin-top:48px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--accent);}

/* ============ responsive ============ */
@media (max-width:1024px){
  .nav-inner{display:flex;justify-content:space-between;gap:16px;}
  .nav-menu{
    position:absolute;left:0;right:0;top:64px;
    flex-direction:column;align-items:flex-start;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:8px 24px 16px;
    box-shadow:var(--sh-2);
    display:none;
  }
  .nav-menu.open{display:flex;}
  .nav-menu a{width:100%;padding:14px 0;font-size:15px;border-bottom:1px solid var(--line);}
  .nav-menu a::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .search input{width:96px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container,.container-wide{padding:0 20px;}
  .article-head h1{font-size:26px;}
  .article-body{padding:26px 20px;font-size:16px;border-radius:var(--r-md);}
  .article-body h2{font-size:22px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .pager{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr;}
  .sec-head h2{font-size:22px;}
  .cta-card{padding:28px 22px;border-radius:22px;}
  .cta-text h2{font-size:20px;}
  .related-sec{padding-top:48px;}
  .back-wrap{padding:36px 0 56px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .search{display:none;}
  .meta-row{font-size:12px;}
  .article-body{padding:22px 16px;}
  .article-top{padding-top:20px;}
  .article-head{margin-top:20px;}
}

/* roulang page: category1 */
:root{
  --brand:#6A3BE4;
  --brand-deep:#4A21B8;
  --brand-soft:#EFE9FF;
  --accent:#14D8C0;
  --accent-soft:rgba(20,216,192,.1);
  --action:#FF6A3D;
  --ink:#1B1530;
  --ink-2:#4A4360;
  --ink-3:#867FA0;
  --bg:#F7F5FC;
  --card:#FFFFFF;
  --dark:#120C22;
  --line:#E7E2F3;
  --grad:linear-gradient(120deg,#6A3BE4 0%,#A24BFF 48%,#FF6A9A 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --pill:999px;
  --sh1:0 4px 16px rgba(106,59,228,.08);
  --sh2:0 12px 32px rgba(106,59,228,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease),transform .2s var(--ease)}
a:hover{color:var(--action)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.container-wide{max-width:1280px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;height:64px;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:center;height:64px}
.nav-left{display:flex;align-items:center;gap:26px;min-width:0}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:30px;height:30px;flex:none;border-radius:9px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:800;
  box-shadow:0 4px 12px rgba(106,59,228,.32);
}
.nav-menu{display:flex;align-items:center;gap:26px}
.nav-menu a{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:0;width:16px;height:2px;border-radius:2px;
  background:var(--grad);transform:translateX(-50%) scaleX(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.nav-menu a:hover{color:var(--brand)}
.nav-menu a:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-menu a.active{color:var(--brand);font-weight:600}
.nav-menu a.active::after{transform:translateX(-50%) scaleX(1)}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;height:36px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--pill);background:var(--bg);color:var(--ink-3);
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(106,59,228,.2);background:#fff}
.search input{border:0;background:transparent;outline:none;width:148px;color:var(--ink);font-size:14px}
.search input::placeholder{color:var(--ink-3)}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:12px;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .22s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.open span{background:transparent}
.nav-toggle.open span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:var(--pill);font-weight:600;font-size:15px;padding:12px 24px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s,color .2s;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(106,59,228,.28)}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(106,59,228,.34)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand)}
.btn-light:hover{background:transparent;color:#fff;box-shadow:inset 0 0 0 1px #fff}
.btn-sm{padding:9px 18px;font-size:14px}
.btn:active{transform:translateY(0)}
.btn[disabled]{opacity:.45;pointer-events:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.text-link svg{transition:transform .2s var(--ease)}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- 分类页首屏 ---------- */
.cat-hero{
  position:relative;overflow:hidden;background-color:var(--dark);
  background-image:linear-gradient(115deg,rgba(18,12,34,.95) 8%,rgba(74,33,184,.8) 55%,rgba(106,59,228,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.3;
}
.cat-hero-inner{position:relative;z-index:2;padding:60px 0 56px;max-width:780px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.74)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#9FF3E7;font-weight:600}
.cat-hero h1{color:#fff;font-size:34px;letter-spacing:.2px}
.cat-hero .lead{color:rgba(255,255,255,.84);font-size:17px;margin-top:14px;max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags span{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#EAE4FF;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  padding:6px 14px;border-radius:var(--pill);
}
.hero-tags span::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent)}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section-soft{padding:56px 0}
.section-head{margin-bottom:26px}
.section-head h2{font-size:26px}
.section-head p{font-size:15px;color:var(--ink-3);margin-top:8px;max-width:760px}
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}
.block-head h2{font-size:24px}
.block-head p{font-size:14px;color:var(--ink-3);margin-top:6px}

/* ---------- 主体两栏 ---------- */
.cat-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:32px;align-items:start}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh1);margin-bottom:20px;
}
.side-card:last-child{margin-bottom:0}
.side-card h3{font-size:15px;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--grad)}
.filter-list li{margin-bottom:4px}
.filter-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:14px;color:var(--ink-2);padding:8px 10px;border-radius:10px;
}
.filter-list a:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px)}
.filter-list a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.filter-list .cnt{font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{font-size:12px;color:var(--brand);background:var(--brand-soft);border-radius:var(--pill);padding:5px 12px}
.tag-cloud a:hover{background:var(--brand);color:#fff}
.rank-list li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed var(--line)}
.rank-list li:last-child{border-bottom:0;padding-bottom:0}
.rank-no{
  width:22px;height:22px;flex:none;border-radius:7px;background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:800;display:grid;place-items:center;font-variant-numeric:tabular-nums;
}
.rank-list li:first-child .rank-no{background:var(--grad);color:#fff}
.rank-title{font-size:14px;font-weight:600;line-height:1.5}
.rank-meta{font-size:12px;color:var(--ink-3);margin-top:2px}

/* ---------- 入口卡片 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#D9CFFB}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-chip{
  position:absolute;left:12px;top:12px;font-size:12px;line-height:1.6;
  background:rgba(18,12,34,.74);color:#fff;padding:4px 10px;border-radius:var(--pill);
  backdrop-filter:blur(4px);
}
.card-chip.warm{background:rgba(255,106,61,.92)}
.card-body{padding:20px}
.card-body h3{font-size:17px;line-height:1.45;margin-bottom:8px;transition:color .2s}
.card:hover .card-body h3{color:var(--brand)}
.card-desc{
  font-size:14px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px;
}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#0B8C7C;
  background:var(--accent-soft);border-radius:var(--pill);padding:4px 10px;
  font-variant-numeric:tabular-nums;
}
.badge::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent)}
.badge.hot{color:#C8401B;background:rgba(255,106,61,.1)}
.badge.hot::before{background:var(--action)}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}

/* ---------- 分页 ---------- */
.pager{display:flex;justify-content:center;gap:10px;margin-top:36px;flex-wrap:wrap}
.pager a,.pager span{
  width:40px;height:40px;display:grid;place-items:center;border-radius:12px;
  border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink-2);
  font-variant-numeric:tabular-nums;
}
.pager a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.pager .is-current{background:var(--grad);border-color:transparent;color:#fff}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh1);position:relative;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.step-no{
  font-size:28px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h3{font-size:17px;margin:14px 0 8px}
.step p{font-size:14px;color:var(--ink-2);line-height:1.75}

/* ---------- 保障条 ---------- */
.guard{
  background:var(--brand-soft);border-radius:var(--r-lg);
  padding:24px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.guard-item{display:flex;gap:12px;align-items:flex-start;position:relative}
.guard-item+.guard-item::before{
  content:"";position:absolute;left:-9px;top:6px;bottom:6px;width:1px;background:#DED4FA;
}
.guard-ico{
  width:34px;height:34px;flex:none;border-radius:10px;background:#fff;color:var(--brand);
  display:grid;place-items:center;box-shadow:var(--sh1);
}
.guard-item b{display:block;font-size:14px;font-weight:600}
.guard-item span{font-size:12px;color:var(--ink-3);line-height:1.6}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-sm);margin-bottom:12px;overflow:hidden;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
  transform:scaleY(0);transform-origin:top;transition:transform .22s var(--ease);
}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;background:none;border:0;padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand)}
.faq-ico{width:22px;height:22px;flex:none;position:relative;transition:transform .2s var(--ease)}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-ico::before{width:14px;height:2px}
.faq-ico::after{width:2px;height:14px}
.faq-item.open .faq-ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;background:var(--grad);
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  color:#fff;box-shadow:0 18px 44px rgba(106,59,228,.26);
}
.cta-band::after{
  content:"";position:absolute;right:-50px;bottom:-70px;width:340px;height:340px;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.18;border-radius:28px;pointer-events:none;
}
.cta-band h2{font-size:24px;color:#fff;position:relative;z-index:2}
.cta-band p{font-size:14px;color:rgba(255,255,255,.9);margin-top:8px;position:relative;z-index:2;max-width:620px}
.cta-band .btn{position:relative;z-index:2;flex:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:56px 0 0;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:32px}
.footer-brand .logo{color:#fff}
.footer-brand .logo:hover{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:14px;color:rgba(255,255,255,.66);max-width:330px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{display:inline-block;font-size:14px;color:rgba(255,255,255,.7)}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-contact p{font-size:14px;margin-bottom:8px}
.sub-form{display:flex;gap:8px;margin-top:12px}
.sub-form input{
  flex:1;min-width:0;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px;outline:none;font-size:14px;
  transition:border-color .2s,box-shadow .2s;
}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 2px rgba(20,216,192,.2)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding:20px 0;font-size:13px;
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container,.container-wide{padding:0 24px}
}
@media (max-width:1024px){
  .nav-inner{grid-template-columns:1fr;gap:0}
  .nav-menu{
    position:fixed;left:0;right:0;top:64px;flex-direction:column;align-items:flex-start;gap:0;
    background:#fff;border-bottom:1px solid var(--line);padding:8px 24px 18px;
    box-shadow:var(--sh2);transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:transform .22s var(--ease),opacity .22s var(--ease),visibility .22s;
  }
  .nav-menu.open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-menu a{width:100%;padding:13px 0;border-bottom:1px solid var(--line);font-size:15px}
  .nav-menu a::after{display:none}
  .nav-toggle{display:flex}
  .cat-layout{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:1fr}
  .guard{grid-template-columns:repeat(2,1fr)}
  .guard-item+.guard-item::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cat-hero h1{font-size:28px}
  .section{padding:64px 0}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .section-soft{padding:40px 0}
  .section-head h2,.block-head h2{font-size:22px}
  .cat-hero-inner{padding:44px 0 40px}
  .cat-hero h1{font-size:26px}
  .cat-hero .lead{font-size:15px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;border-radius:22px}
  .cta-band h2{font-size:21px}
  .site-footer{margin-top:56px}
}
@media (max-width:640px){
  .entry-grid{grid-template-columns:1fr}
  .guard{grid-template-columns:1fr;padding:20px}
  .footer-grid{grid-template-columns:1fr}
  .search{display:none}
  .block-head{flex-direction:column;align-items:flex-start;gap:6px}
  .card-desc{-webkit-line-clamp:3}
}

/* roulang page: category2 */
:root{
  --primary:#6A3BE4;
  --primary-dark:#4A21B8;
  --primary-soft:#EFE9FF;
  --accent:#14D8C0;
  --accent-deep:#0E9E8D;
  --action:#FF6A3D;
  --ink:#1B1530;
  --muted:#4A4360;
  --weak:#867FA0;
  --bg:#F7F5FC;
  --card:#FFFFFF;
  --dark:#120C22;
  --line:#E7E2F3;
  --grad:linear-gradient(120deg,#6A3BE4 0%,#A24BFF 48%,#FF6A9A 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 4px 16px rgba(106,59,228,.08);
  --sh-2:0 12px 32px rgba(106,59,228,.16);
  --sp:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
img{max-width:100%;display:block;}
button{font-family:inherit;}
input,button{font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.container-wide{max-width:1280px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:grid;grid-template-columns:1.05fr 1fr;gap:32px;
  align-items:center;height:64px;
}
.nav-left{display:flex;align-items:center;gap:30px;min-width:0;}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:17px;color:var(--ink);white-space:nowrap;letter-spacing:.2px;
}
.logo-mark{
  width:28px;height:28px;border-radius:9px;background:var(--grad);
  color:#fff;font-size:15px;font-weight:800;display:grid;place-items:center;flex:0 0 auto;
}
.nav-menu{display:flex;align-items:center;gap:24px;}
.nav-menu a{
  position:relative;color:var(--muted);font-size:15px;padding:6px 0;white-space:nowrap;
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:0;width:16px;height:2px;border-radius:2px;
  background:var(--grad);transform:translateX(-50%) scaleX(0);transition:transform .22s ease;
}
.nav-menu a:hover{color:var(--primary);}
.nav-menu a:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-menu a.active{color:var(--primary);font-weight:600;}
.nav-menu a.active::after{transform:translateX(-50%) scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;justify-content:flex-end;}
.search{
  display:flex;align-items:center;gap:8px;height:36px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--weak);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search input{
  border:0;outline:0;background:transparent;width:132px;font-size:14px;color:var(--ink);
}
.search input::placeholder{color:var(--weak);}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(106,59,228,.14);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:1px solid transparent;border-radius:999px;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .24s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 16px rgba(106,59,228,.18);}
.btn-primary:hover{background-image:var(--grad);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary);}
.btn-outline:hover{background:var(--primary-soft);transform:translateY(-1px);}
.btn-white{background:#fff;color:var(--primary);}
.btn-white:hover{background:transparent;border-color:#fff;color:#fff;transform:translateY(-1px);}
.btn-light-line{background:transparent;border-color:rgba(255,255,255,.7);color:#fff;}
.btn-light-line:hover{background:#fff;color:var(--primary);transform:translateY(-1px);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn:disabled{opacity:.45;pointer-events:none;}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:12px;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- page head ---------- */
.crumb{
  padding:26px 0 6px;font-size:13px;color:var(--weak);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.crumb a{color:var(--weak);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#C9C2DE;}
.crumb .now{color:var(--primary);font-weight:600;}
.page-head{padding:8px 0 4px;}
.h1-row{
  display:grid;grid-template-columns:1fr auto;gap:28px;align-items:end;
}
.h1-row h1{font-size:34px;letter-spacing:-.3px;}
.h1-row h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.lede{margin-top:12px;font-size:16px;color:var(--muted);max-width:660px;line-height:1.8;}
.stats-strip{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;padding-bottom:6px;}
.stat-pill{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  background:rgba(20,216,192,.09);color:var(--accent-deep);font-size:13px;
}
.stat-pill b{font-size:17px;font-weight:800;color:var(--accent-deep);font-variant-numeric:tabular-nums;}
.tag-bar{
  display:flex;gap:10px;overflow-x:auto;padding:22px 0 6px;margin-bottom:6px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.tag-bar::-webkit-scrollbar{display:none;}
.tag{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:9px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);
  color:var(--muted);font-size:14px;cursor:pointer;transition:all .2s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary);}
.tag.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(106,59,228,.22);}

/* ---------- sections ---------- */
.section{padding:var(--sp) 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head h2{font-size:26px;}
.section-head p{margin-top:8px;font-size:14px;color:var(--weak);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.text-link svg{transition:transform .22s ease;}
.text-link:hover svg{transform:translateX(3px);}

/* ---------- feed ---------- */
.feed{border-top:1px solid var(--line);}
.feed-item{
  display:grid;grid-template-columns:320px 1fr;gap:30px;
  padding:28px 20px;border-bottom:1px solid var(--line);border-radius:var(--r-md);
  transition:background .24s ease,transform .24s cubic-bezier(.2,.7,.3,1);
}
.feed-item:hover{background:#FAF8FF;transform:translateX(4px);}
.feed-thumb{
  border-radius:var(--r-md);overflow:hidden;background:var(--primary-soft);
  aspect-ratio:4/3;
}
.feed-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s cubic-bezier(.2,.7,.3,1);}
.feed-item:hover .feed-thumb img{transform:scale(1.04);}
.feed-body{min-width:0;display:flex;flex-direction:column;gap:12px;justify-content:center;}
.feed-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.chip{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600;
}
.state{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;}
.state-hot{background:rgba(255,106,61,.12);color:#D8451A;}
.state-new{background:rgba(20,216,192,.14);color:var(--accent-deep);}
.feed-body h3{font-size:20px;}
.feed-body h3 a{color:var(--ink);}
.feed-item:hover .feed-body h3 a{color:var(--primary);}
.feed-excerpt{
  font-size:15px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.badges{display:flex;gap:8px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;
  background:rgba(20,216,192,.08);color:var(--accent-deep);font-size:12.5px;
}
.badge::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent);flex:0 0 auto;}
.badge b{font-variant-numeric:tabular-nums;font-weight:700;}

/* ---------- dark band ---------- */
.dark-band{
  border-radius:28px;background:var(--dark);color:#fff;padding:44px 40px;position:relative;overflow:hidden;
}
.dark-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:22px 22px;opacity:.06;
}
.dark-band::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:var(--grad);filter:blur(90px);opacity:.35;
}
.dark-band > *{position:relative;z-index:1;}
.dark-band h2{font-size:26px;color:#fff;}
.dark-band .band-sub{margin-top:10px;font-size:14px;color:rgba(255,255,255,.66);max-width:600px;}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:32px;}
.metric{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-md);padding:20px;
}
.metric .label{font-size:13px;color:rgba(255,255,255,.6);}
.metric .value{
  margin-top:6px;font-size:30px;font-weight:800;font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#fff 0%,#BFA9FF 60%,#7BF3E3 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric .unit{font-size:14px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.7);-webkit-text-fill-color:rgba(255,255,255,.7);}
.metric .desc{margin-top:6px;font-size:12px;color:rgba(255,255,255,.52);}

/* ---------- subscribe ---------- */
.sub-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-1);
  display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center;
}
.sub-card h2{font-size:24px;}
.sub-card p{margin-top:10px;font-size:14.5px;color:var(--muted);}
.field-row{display:flex;gap:12px;}
.field-row input{
  flex:1;min-width:0;height:48px;padding:0 16px;border-radius:14px;
  border:1px solid var(--line);background:#fff;color:var(--ink);outline:0;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field-row input::placeholder{color:var(--weak);}
.field-row input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(106,59,228,.16);}
.form-note{margin-top:10px;font-size:12.5px;color:var(--weak);}
.form-ok{
  display:none;margin-top:12px;padding:10px 14px;border-radius:var(--r-sm);
  border:1px solid var(--accent);color:var(--accent-deep);background:rgba(20,216,192,.08);font-size:13px;
}
.form-ok.show{display:block;}

/* ---------- CTA duo ---------- */
.cta-duo{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.cta-card{border-radius:var(--r-lg);padding:34px;position:relative;overflow:hidden;}
.cta-solid{background-image:var(--grad);color:#fff;}
.cta-solid::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.16);filter:blur(40px);
}
.cta-card > *{position:relative;z-index:1;}
.cta-card h3{font-size:22px;}
.cta-card p{margin:12px 0 22px;font-size:14.5px;line-height:1.8;}
.cta-solid p{color:rgba(255,255,255,.86);}
.cta-line{background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);}
.cta-line p{color:var(--muted);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- faq ---------- */
.faq{max-width:820px;margin:0 auto;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
  opacity:0;transition:opacity .2s ease;
}
.faq-item.open{box-shadow:var(--sh-1);}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q .ico{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--primary-soft);
  color:var(--primary);display:grid;place-items:center;font-size:15px;font-weight:700;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:var(--primary);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .24s ease;
  padding:0 22px;font-size:14.5px;color:var(--muted);line-height:1.8;
}
.faq-item.open .faq-a{max-height:320px;padding-bottom:20px;}
.faq-hint{margin-top:16px;text-align:center;font-size:13px;color:var(--weak);}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:88px;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:32px;}
.footer-brand .logo{color:#fff;font-size:16px;}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:300px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{display:inline-block;color:rgba(255,255,255,.7);font-size:14px;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-contact p{font-size:14px;color:rgba(255,255,255,.62);margin-bottom:8px;}
.sub-form{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;}
.sub-form input{
  flex:1;min-width:0;height:48px;padding:0 16px;border-radius:14px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;outline:0;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:rgba(255,255,255,.45);}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(20,216,192,.18);}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sp:64px;}
  .nav-inner{grid-template-columns:auto 1fr;}
  .nav-menu{gap:18px;}
  .search input{width:104px;}
  .h1-row{grid-template-columns:1fr;}
  .stats-strip{justify-content:flex-start;}
  .feed-item{grid-template-columns:260px 1fr;gap:24px;padding:24px 14px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .sub-card{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:880px){
  .nav-inner{display:flex;justify-content:space-between;}
  .nav-left{gap:14px;}
  .nav-menu{
    display:none;position:absolute;top:64px;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:4px;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-1);
    padding:14px 24px 18px;
  }
  .nav-menu.open{display:flex;}
  .nav-menu a{width:100%;padding:10px 0;font-size:15px;}
  .nav-menu a::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .search{display:none;}
}
@media (max-width:768px){
  :root{--sp:48px;}
  .container,.container-wide{padding:0 20px;}
  .h1-row h1{font-size:26px;}
  .section-head h2{font-size:22px;}
  .feed{border-top:0;}
  .feed-item{grid-template-columns:1fr;gap:16px;padding:20px 0;border-radius:0;}
  .feed-item:hover{transform:none;background:transparent;}
  .feed-item:hover .feed-body h3 a{color:var(--ink);}
  .feed-thumb{border-radius:var(--r-md);}
  .dark-band{padding:32px 22px;border-radius:22px;}
  .metrics{grid-template-columns:1fr 1fr;gap:14px;}
  .metric{padding:16px;}
  .metric .value{font-size:24px;}
  .cta-duo{grid-template-columns:1fr;}
  .cta-card{padding:26px 22px;}
  .sub-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:480px){
  .h1-row h1{font-size:24px;}
  .metrics{grid-template-columns:1fr;}
  .field-row{flex-direction:column;}
  .field-row .btn{width:100%;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .btn{width:auto;}
}