/* roulang page: index */
:root{
  --brand-1:#FF6A3D;
  --brand-2:#A044E0;
  --brand-mid:#D9508F;
  --brand-grad:linear-gradient(118deg,#FF6A3D 0%,#D9508F 52%,#A044E0 100%);
  --accent:#17C3A2;
  --bg:#FFF8F4;
  --surface:#FFFFFF;
  --soft:#FDF1EA;
  --ink:#1B1526;
  --ink-2:#4A4358;
  --muted:#8A8296;
  --line:#F0E7F2;
  --dark:#241A33;
  --dark-text:#F7F2FA;
  --dark-link:#C9BEDA;
  --r-sm:14px;
  --r-md:20px;
  --r-lg:24px;
  --r-xl:32px;
  --pill:999px;
  --shadow-1:0 8px 24px rgba(27,21,38,.06);
  --shadow-2:0 18px 40px rgba(160,68,224,.14);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:88px 0;}
.section-soft{background:var(--soft);}
.section-tight{padding:64px 0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,248,244,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(27,21,38,.08);}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.3px;font-size:19px;}
.brand-mark{display:grid;grid-template-columns:repeat(2,9px);grid-template-rows:repeat(2,9px);gap:3px;}
.brand-mark span{display:block;border-radius:3px;background:var(--brand-grad);}
.brand-mark span:nth-child(2){opacity:.72;}
.brand-mark span:nth-child(3){opacity:.55;}
.brand-mark span:nth-child(4){opacity:.9;}
.brand-text{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:var(--pill);
  font-size:15px;color:var(--ink-2);transition:color .2s ease,transform .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-2);transform:translateY(-1px);background:rgba(160,68,224,.06);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:var(--pill);
  background:var(--brand-grad);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .25s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(27,21,38,.45);opacity:0;pointer-events:none;
  transition:opacity .25s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:var(--surface);
  z-index:80;transform:translateX(100%);transition:transform .28s ease;padding:26px 22px;
  display:flex;flex-direction:column;border-radius:24px 0 0 24px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-head strong{font-size:17px;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.drawer-close{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);font-size:18px;color:var(--ink-2);line-height:1;}
.drawer nav{display:flex;flex-direction:column;}
.drawer nav a{padding:0 6px;height:56px;display:flex;align-items:center;font-size:18px;color:var(--ink-2);border-bottom:1px solid var(--line);}
.drawer nav a.is-active{color:var(--brand-2);font-weight:600;}
.drawer .btn{margin-top:auto;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--pill);font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(160,68,224,.25);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px) scale(1.02);box-shadow:0 16px 32px rgba(160,68,224,.3);}
.btn-ghost{background:var(--surface);color:var(--ink);position:relative;border:1px solid transparent;
  background-image:linear-gradient(var(--surface),var(--surface)),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;box-shadow:var(--shadow-1);}
.btn-ghost:hover{color:var(--brand-2);transform:translateY(-2px);}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-2);font-weight:600;font-size:15px;}
.text-link i{font-style:normal;transition:transform .2s ease;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- badges ---------- */
.pill-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--pill);
  font-size:13px;letter-spacing:.5px;color:var(--brand-2);
  background:linear-gradient(var(--surface),var(--surface)) padding-box,var(--brand-grad) border-box;
  border:1px solid transparent;
}
.pill-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--brand-grad);}
.tag-cat{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--pill);
  font-size:12px;letter-spacing:.5px;color:var(--brand-2);background:rgba(160,68,224,.1);
}
.tag-accent{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--pill);
  font-size:12.5px;color:#0E7F6B;background:rgba(23,195,162,.12);
}
.stat-badge{
  display:inline-flex;align-items:baseline;gap:6px;padding:9px 16px;border-radius:var(--pill);
  background:rgba(160,68,224,.08);color:var(--brand-2);font-size:13px;
}
.stat-badge b{font-size:19px;font-weight:800;font-variant-numeric:tabular-nums;}

/* ---------- typography ---------- */
.h1{font-size:34px;line-height:1.25;font-weight:800;letter-spacing:-.5px;}
.h2{font-size:26px;line-height:1.35;font-weight:700;letter-spacing:-.3px;padding-left:16px;position:relative;}
.h2::before{
  content:"";position:absolute;left:0;top:6px;width:6px;height:22px;border-radius:3px;background:var(--brand-grad);
}
.h3{font-size:19px;font-weight:600;line-height:1.5;}
.lead{font-size:17px;color:var(--ink-2);}
.muted{font-size:13px;color:var(--muted);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-desc{font-size:15.5px;color:var(--ink-2);margin-top:10px;max-width:640px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 80px;}
.hero::before{
  content:"";position:absolute;top:-160px;right:-140px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(255,106,61,.18),rgba(160,68,224,.14) 45%,transparent 70%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.hero-copy{max-width:560px;}
.hero-copy .h1{margin:20px 0 18px;}
.hero-sub{font-size:17px;color:var(--ink-2);margin-bottom:28px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;}
.phone-card{
  position:relative;border-radius:var(--r-xl);overflow:hidden;background:var(--soft);
  border:1px solid var(--line);box-shadow:var(--shadow-2);aspect-ratio:9/16;max-width:420px;margin-left:auto;
}
.phone-card img{width:100%;height:100%;object-fit:cover;}
.phone-card::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:42%;
  background:linear-gradient(180deg,rgba(27,21,38,0),rgba(27,21,38,.78));
}
.phone-chip{
  position:absolute;top:16px;left:16px;z-index:2;padding:5px 12px;border-radius:var(--pill);
  background:rgba(255,255,255,.9);font-size:12.5px;color:var(--brand-2);font-variant-numeric:tabular-nums;
}
.phone-caption{position:absolute;left:20px;right:20px;bottom:20px;z-index:2;color:#fff;}
.phone-caption strong{display:block;font-size:17px;font-weight:700;margin-bottom:4px;}
.phone-caption span{font-size:13px;color:rgba(255,255,255,.82);}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

/* ---------- metric strip ---------- */
.metric-strip{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:34px 0;}
.metric{display:flex;align-items:center;gap:14px;padding:6px 4px;}
.metric-icon{
  width:46px;height:46px;flex:0 0 46px;border-radius:16px;display:grid;place-items:center;
  background:rgba(255,106,61,.12);color:var(--brand-1);font-size:20px;
}
.metric b{display:block;font-size:24px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums;}
.metric span{font-size:13.5px;color:var(--muted);}

/* ---------- snap row ---------- */
.snap-row{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(210px,1fr);gap:20px;
  overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:14px;
  scrollbar-width:thin;
}
.snap-row::-webkit-scrollbar{height:6px;}
.snap-row::-webkit-scrollbar-thumb{background:rgba(160,68,224,.25);border-radius:99px;}
.snap-card{scroll-snap-align:start;display:block;}
.snap-thumb{
  position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:9/16;background:var(--soft);
  border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease;
}
.snap-thumb img{width:100%;height:100%;object-fit:cover;}
.snap-card:hover .snap-thumb{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.snap-time{
  position:absolute;left:12px;top:12px;padding:4px 10px;border-radius:var(--pill);
  background:rgba(27,21,38,.6);color:#fff;font-size:12px;font-variant-numeric:tabular-nums;
}
.snap-title{font-size:15.5px;font-weight:600;margin-top:12px;line-height:1.55;}
.snap-card:hover .snap-title{color:var(--brand-2);}

/* ---------- pick list ---------- */
.pick-item{
  display:flex;align-items:center;gap:22px;padding:24px 8px;border-bottom:1px solid var(--line);
  position:relative;transition:background .2s ease,transform .2s ease;
}
.pick-item:first-child{border-top:1px solid var(--line);}
.pick-item::before{
  content:"";position:absolute;left:-8px;top:18px;bottom:18px;width:4px;border-radius:3px;
  background:var(--brand-grad);opacity:0;transition:opacity .2s ease;
}
.pick-item:hover::before{opacity:1;}
.pick-item:hover{transform:translateX(4px);}
.pick-num{
  font-size:40px;font-weight:800;line-height:1;min-width:70px;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.pick-body{flex:1;}
.pick-body h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.pick-body p{font-size:14.5px;color:var(--muted);}
.pick-arrow{font-size:20px;color:var(--brand-2);transition:transform .2s ease;}
.pick-item:hover .pick-arrow{transform:translateX(4px);}

/* ---------- post cards ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.post-thumb{position:relative;aspect-ratio:16/10;background:var(--soft);overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-thumb .tag-cat{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-body h3{
  font-size:17px;font-weight:600;line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:16px;}
.post-foot span{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.post-foot i{font-style:normal;color:var(--brand-2);transition:transform .2s ease;}
.post-card:hover .post-foot i{transform:translateX(4px);}
.empty-state{
  background:var(--surface);border:1px dashed rgba(160,68,224,.35);border-radius:var(--r-lg);
  padding:48px 28px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:18px;margin:0 auto 18px;display:grid;place-items:center;
  background:rgba(160,68,224,.1);color:var(--brand-2);font-size:24px;
}
.empty-state p{color:var(--ink-2);margin-bottom:20px;}

/* ---------- category entries ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.cat-card{
  position:relative;display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;overflow:hidden;
}
.cat-card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--brand-grad);opacity:0;
  transition:opacity .25s ease;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.cat-card:hover::after{opacity:1;}
.cat-card h3{font-size:20px;font-weight:700;margin:14px 0 10px;}
.cat-card p{font-size:14.5px;color:var(--muted);margin-bottom:22px;}
.cat-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;}
.cat-wide{
  grid-column:1/-1;display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:center;
  background:linear-gradient(180deg,#fff,#FFF8F4);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:28px;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease;
}
.cat-wide:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.cat-wide-media{border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/10;background:var(--soft);}
.cat-wide-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- reviews ---------- */
.review-row{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,1fr);gap:16px;overflow-x:auto;
  padding-bottom:12px;scroll-snap-type:x mandatory;
}
.review-card{
  scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow-1);
}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:42px;height:42px;flex:0 0 42px;border-radius:50%;display:grid;place-items:center;
  color:#fff;font-weight:700;font-size:15px;background:var(--brand-grad);
}
.review-head strong{font-size:15px;display:block;}
.stars{color:#FF9A5A;font-size:13px;letter-spacing:2px;}
.review-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:12px;}

/* ---------- cta ---------- */
.cta-band{
  border-radius:var(--r-xl);background:var(--brand-grad);color:#fff;padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 24px 50px rgba(160,68,224,.28);
}
.cta-band h2{font-size:26px;font-weight:800;line-height:1.35;margin-bottom:10px;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.88);max-width:560px;}
.cta-checks{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.cta-checks span{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--pill);
  background:rgba(255,255,255,.16);font-size:13px;
}
.cta-checks span::before{content:"✓";font-size:12px;color:#BFF5E9;}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:20px;}
.cta-form input{
  height:48px;padding:0 16px;border-radius:12px;border:1px solid rgba(255,255,255,.4);
  background:rgba(255,255,255,.14);color:#fff;min-width:240px;
}
.cta-form input::placeholder{color:rgba(255,255,255,.72);}
.cta-form input:focus{outline:none;border-color:#BFF5E9;box-shadow:0 0 0 3px rgba(23,195,162,.35);}
.cta-form .btn{background:#fff;color:var(--brand-2);}
.cta-form .btn:hover{filter:none;transform:translateY(-2px);}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);overflow:hidden;position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:6px;border-radius:0 4px 4px 0;
  background:var(--brand-grad);opacity:0;transition:opacity .25s ease;
}
.faq-item[open]::before{opacity:1;}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;gap:12px;
  padding:16px 24px 16px 26px;font-size:16.5px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:20px;font-weight:400;color:var(--brand-2);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 26px 22px;font-size:15px;color:var(--ink-2);animation:fadeIn .3s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--dark-text);padding:66px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:38px;border-bottom:1px solid rgba(247,242,250,.12);}
.footer-brand strong{font-size:19px;font-weight:800;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.footer-brand p{font-size:14px;color:var(--dark-link);margin-top:14px;max-width:320px;line-height:1.8;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:#fff;}
.footer-col a{display:block;font-size:14px;color:var(--dark-link);padding:5px 0;transition:color .2s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:22px;font-size:13px;color:var(--dark-link);}

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

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:64px 0;}
  .hero{padding:52px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-copy{max-width:none;}
  .phone-card{margin:0 auto;max-width:360px;width:100%;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .footer-brand{grid-column:1/-1;}
  .cta-band{padding:36px 32px;}
}
@media (max-width:860px){
  .nav-links{display:none;}
  .nav-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .snap-row{grid-auto-columns:minmax(180px,58%);}
}
@media (max-width:768px){
  .h1{font-size:26px;}
  .h2{font-size:20px;}
  .h3{font-size:17px;}
  body{font-size:15.5px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .cat-grid{grid-template-columns:1fr;}
  .cat-wide{grid-template-columns:1fr;gap:18px;}
  .post-grid{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .pick-item{gap:14px;padding:20px 4px;}
  .pick-num{font-size:30px;min-width:52px;}
  .review-row{grid-auto-flow:row;grid-auto-columns:auto;grid-template-columns:1fr;overflow:visible;}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left;padding:32px 24px;}
  .cta-band .btn{width:100%;}
  .cta-form{width:100%;}
  .cta-form input{width:100%;min-width:0;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero-btns .btn{width:100%;}
  .hero-stats{gap:8px;}
  .stat-badge b{font-size:17px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-bottom{justify-content:flex-start;}
}

/* roulang page: article */
:root{
  --brand-1:#FF6A3D;
  --brand-2:#A044E0;
  --brand-grad:linear-gradient(118deg,#FF6A3D 0%,#D9508F 52%,#A044E0 100%);
  --accent:#17C3A2;
  --bg:#FFF8F4;
  --surface:#FFFFFF;
  --soft:#FDF1EA;
  --ink:#1B1526;
  --ink-2:#4A4358;
  --ink-3:#8A8296;
  --line:#F0E7F2;
  --deep:#241A33;
  --deep-text:#F7F2FA;
  --deep-mute:#C9BEDA;
  --r-xl:32px;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-sm:0 8px 24px rgba(27,21,38,.06);
  --shadow-lg:0 18px 40px rgba(160,68,224,.14);
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  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;transition:color .2s ease}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,248,244,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(27,21,38,.08)}
.nav-inner{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.4px;color:var(--ink)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--brand-grad);
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;padding:5px;
  box-shadow:0 6px 16px rgba(160,68,224,.28);flex:none;
}
.brand-mark span{background:rgba(255,255,255,.92);border-radius:2px;display:block}
.brand-mark span:nth-child(2){opacity:.66}
.brand-mark span:nth-child(3){opacity:.66}
.brand-mark span:nth-child(4){opacity:.86}
.brand-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--brand-2);transform:translateY(-1px)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;background:var(--brand-grad);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .2s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-overlay{
  position:fixed;inset:0;z-index:45;background:rgba(27,21,38,.45);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.nav-overlay.is-open{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:600;
  white-space:nowrap;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,color .2s ease;
}
.btn-primary{background-image:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(160,68,224,.25)}
.btn-primary:hover{filter:brightness(1.06);transform:scale(1.02);box-shadow:0 14px 30px rgba(160,68,224,.32)}
.btn-ghost{
  color:var(--ink);
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  border:1px solid transparent;
}
.btn-ghost:hover{color:var(--brand-2);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-light{background:#fff;color:var(--brand-2)}
.btn-light:hover{transform:scale(1.02);box-shadow:0 14px 30px rgba(27,21,38,.22)}
.btn-sm{padding:10px 20px;font-size:14px}

/* ============ 徽章 ============ */
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.4px;line-height:1.6;
}
.chip-brand{background:rgba(160,68,224,.10);color:#8A34C6}
.chip-soft{background:rgba(255,106,61,.10);color:#D8501F}
.chip-accent{background:rgba(23,195,162,.13);color:#0E9C81}

/* ============ 面包屑 ============ */
.page-head{padding:26px 0 0}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand-2)}
.crumb-sep{color:#D9CFDE}
.crumb-cat{color:var(--ink-2)}
.crumb-current{color:var(--ink);font-weight:600;max-width:min(560px,52vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章卡片 ============ */
.article-shell{padding:28px 0 var(--sec)}
.article-card{
  max-width:900px;margin:0 auto;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-xl);
  padding:48px;box-shadow:var(--shadow-sm);
}
.article-head{display:flex;flex-direction:column;gap:16px}
.article-title{
  font-size:clamp(26px,3.4vw,36px);font-weight:800;line-height:1.28;
  letter-spacing:-.5px;color:var(--ink);
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--ink-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#DED3E4;display:inline-block}
.article-cover{margin-top:28px}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--soft)}
.article-cover figcaption{margin-top:10px;font-size:13px;color:var(--ink-3);text-align:center}

/* ============ 正文排版 ============ */
.article-body{margin-top:30px;font-size:16px;line-height:1.8;color:var(--ink-2);max-width:760px;margin-left:auto;margin-right:auto}
.article-body p{margin:0 0 1em}
.article-body h2{
  position:relative;padding-left:18px;margin:1.7em 0 .7em;
  font-size:24px;font-weight:700;line-height:1.4;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:6px;background:var(--brand-grad);
}
.article-body h3{margin:1.4em 0 .55em;font-size:19px;font-weight:600;color:var(--ink)}
.article-body h4{margin:1.2em 0 .5em;font-size:16px;font-weight:600;color:var(--ink)}
.article-body strong{color:var(--ink);font-weight:600}
.article-body a{color:var(--brand-2);border-bottom:1px solid rgba(160,68,224,.35)}
.article-body a:hover{color:var(--brand-1);border-bottom-color:var(--brand-1)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;list-style:none}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--brand-1);
}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;counter-increment:li;padding-left:32px;margin-bottom:.6em}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.35em;width:20px;height:20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,106,61,.12);color:#D8501F;font-size:12px;font-weight:700;
}
.article-body blockquote{
  position:relative;margin:1.5em 0;padding:18px 22px 18px 26px;
  background:var(--soft);border-radius:var(--r-md);color:var(--ink-2);
}
.article-body blockquote::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:4px;background:var(--brand-grad);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:20px;border:1px solid var(--line);margin:1.5em auto;object-fit:cover}
.article-body table{
  display:block;width:100%;overflow-x:auto;margin:1.5em 0;
  border:1px solid var(--line);border-radius:var(--r-md);border-collapse:collapse;
  background:#fff;font-size:15px;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--soft);color:var(--ink);font-weight:600;white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0}

/* ============ 空态 ============ */
.empty-state{
  background:var(--soft);border:1px dashed #E9D9E6;border-radius:var(--r-lg);
  padding:48px 26px;text-align:center;
}
.empty-state h2{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:10px}
.empty-state p{color:var(--ink-2);margin-bottom:22px}

/* ============ 阅读要点 ============ */
.key-points{
  max-width:760px;margin:38px auto 0;padding:24px 26px;border-radius:var(--r-lg);
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;border:1px solid transparent;
}
.key-points h2{font-size:18px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:8px}
.key-points h2::before{content:"";width:6px;height:18px;border-radius:6px;background:var(--brand-grad);display:inline-block}
.key-points ul{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:10px}
.key-points li{position:relative;padding-left:28px;font-size:15px;color:var(--ink-2)}
.key-points li::before{
  content:"✓";position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,195,162,.14);color:var(--accent);font-size:12px;font-weight:700;
}

/* ============ 文章底部 ============ */
.article-foot{
  max-width:760px;margin:36px auto 0;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.sibling-link{
  font-size:14px;font-weight:600;color:var(--brand-2);border-bottom:1px solid rgba(160,68,224,.3);padding-bottom:2px;
}
.sibling-link:hover{color:var(--brand-1);border-bottom-color:var(--brand-1)}

/* ============ 通用板块 ============ */
.section{padding:var(--sec) 0}
.section-soft{background:var(--soft)}
.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:32px;max-width:760px}
.section-title{
  position:relative;padding-left:18px;font-size:26px;font-weight:700;color:var(--ink);line-height:1.4;
}
.section-title::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:6px;border-radius:6px;background:var(--brand-grad);
}
.section-sub{font-size:15px;color:var(--ink-2)}

/* ============ 相关推荐 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;gap:12px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.rel-cover{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);background:var(--soft)}
.rel-card h3{font-size:17px;font-weight:600;color:var(--ink);line-height:1.5}
.rel-meta{font-size:13px;color:var(--ink-3);margin-top:auto;display:flex;align-items:center;gap:8px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:880px}
.faq-item{
  position:relative;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:0 22px;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--brand-grad);
  transform:scaleY(0);transform-origin:top;transition:transform .28s ease;
}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;padding:14px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(160,68,224,.10);color:var(--brand-2);font-size:18px;font-weight:400;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 0 18px;font-size:15px;color:var(--ink-2);animation:fadeIn .3s ease both;max-width:720px}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ============ CTA ============ */
.cta-band{padding:0 0 var(--sec)}
.cta-card{
  background-image:var(--brand-grad);border-radius:var(--r-xl);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 56px rgba(160,68,224,.28);color:#fff;position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.16);
}
.cta-text{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px;max-width:640px}
.cta-text h2{font-size:26px;font-weight:700;letter-spacing:-.4px;line-height:1.4}
.cta-text p{font-size:15px;color:rgba(255,255,255,.9)}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.cta-badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.18);font-size:13px;font-weight:500;color:#fff;
}
.cta-card .btn{position:relative;z-index:1;flex:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:var(--deep-text);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand strong{display:block;font-size:19px;font-weight:800;letter-spacing:-.4px;margin-bottom:12px}
.footer-brand p{color:var(--deep-mute);font-size:14px;line-height:1.9;max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col a{display:block;padding:5px 0;font-size:14px;color:var(--deep-mute)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--deep-mute);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sec:64px}
  .nav-actions{margin-left:auto}
  .nav-actions .btn{display:none}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:0;right:0;z-index:55;height:100%;
    width:290px;max-width:84vw;padding:88px 20px 28px;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    transform:translateX(102%);transition:transform .3s ease;
    box-shadow:-12px 0 40px rgba(27,21,38,.2);overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{padding:16px 14px;font-size:17px;border-radius:14px}
  .nav-link:hover{background:var(--soft);transform:none}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:rgba(160,68,224,.08)}
  .article-card{padding:36px}
  .rel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-card{padding:36px}
}
@media (max-width:768px){
  .article-shell{padding:20px 0 64px}
  .article-card{padding:24px;border-radius:var(--r-lg)}
  .article-body{font-size:15.5px}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .section-title{font-size:21px}
  .section-head{margin-bottom:24px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-text h2{font-size:21px}
  .cta-card .btn{width:100%}
  .key-points{padding:20px}
  .crumb-current{max-width:70vw}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-inner{height:64px;gap:12px}
  .brand{font-size:17px}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .article-foot{flex-direction:column;align-items:flex-start}
  .article-foot .btn{width:100%}
  .empty-state{padding:34px 18px}
}

/* roulang page: category1 */
:root{
    --brand-1:#FF6A3D;
    --brand-2:#A044E0;
    --brand-grad:linear-gradient(118deg,#FF6A3D 0%,#D9508F 52%,#A044E0 100%);
    --accent:#17C3A2;
    --bg:#FFF8F4;
    --surface:#FFFFFF;
    --soft:#FDF1EA;
    --ink:#1B1526;
    --ink-2:#4A4358;
    --ink-3:#8A8296;
    --line:#F0E7F2;
    --dark:#241A33;
    --dark-ink:#F7F2FA;
    --r-sm:12px;
    --r-md:20px;
    --r-lg:24px;
    --r-xl:32px;
    --sh-1:0 8px 24px rgba(27,21,38,.06);
    --sh-2:0 18px 40px rgba(160,68,224,.14);
    --sh-3:0 20px 44px rgba(160,68,224,.28);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  html body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--bg);
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;object-fit:cover;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:10px;}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

  /* ---------- 导航 ---------- */
  .site-header{position:sticky;top:0;z-index:80;background:rgba(255,248,244,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
  .site-header.is-scrolled{box-shadow:0 12px 30px rgba(27,21,38,.09);}
  .nav-inner{display:flex;align-items:center;gap:18px;min-height:72px;}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.3px;flex-shrink:0;}
  .brand-mark{display:grid;grid-template-columns:repeat(2,1fr);gap:3px;width:28px;height:28px;padding:5px;border-radius:9px;background:var(--brand-grad);box-shadow:0 6px 16px rgba(160,68,224,.28);}
  .brand-mark span{background:rgba(255,255,255,.94);border-radius:3px;}
  .brand-mark span:nth-child(2),.brand-mark span:nth-child(3){opacity:.6;}
  .brand-text{font-size:19px;color:var(--ink);}
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
  .nav-link{position:relative;display:inline-block;padding:10px 14px;font-size:15px;color:var(--ink-2);border-radius:12px;transition:color .2s ease,transform .2s ease,background .2s ease;}
  .nav-link:hover{color:var(--brand-2);background:rgba(160,68,224,.07);transform:translateY(-1px);}
  .nav-link.is-active{color:var(--brand-1);font-weight:700;}
  .nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;border-radius:99px;background:var(--brand-grad);}
  .nav-actions{display:flex;align-items:center;gap:10px;}
  .nav-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;transition:box-shadow .2s ease;}
  .nav-toggle:hover{box-shadow:var(--sh-1);}
  .nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--ink-2);}

  /* ---------- 按钮与标签 ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:999px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,color .2s ease,background .2s ease;}
  .btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(160,68,224,.25);}
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px) scale(1.02);}
  .btn-outline{position:relative;background:#fff;color:var(--ink);box-shadow:var(--sh-1);}
  .btn-outline::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:var(--brand-grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;}
  .btn-outline:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
  .btn-sm{padding:10px 20px;font-size:14px;}
  .btn-white{background:#fff;color:var(--ink);box-shadow:0 12px 28px rgba(27,21,38,.16);}
  .btn-white:hover{transform:translateY(-2px);}
  .badge-pill{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:#fff;border:1px solid transparent;background-image:linear-gradient(#fff,#fff),var(--brand-grad);background-origin:border-box;background-clip:padding-box,border-box;font-size:13px;color:var(--brand-2);letter-spacing:.4px;font-weight:600;}
  .tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:rgba(160,68,224,.09);color:var(--brand-2);font-size:12px;letter-spacing:.5px;font-weight:600;}
  .tag-accent{background:rgba(23,195,162,.12);color:#0E9C82;}

  /* ---------- 页面头 ---------- */
  .page-head{position:relative;overflow:hidden;padding:64px 0 56px;border-bottom:1px solid var(--line);background-image:linear-gradient(180deg,rgba(255,248,244,.95),rgba(255,248,244,.9)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;}
  .page-head::after{content:"";position:absolute;right:-140px;bottom:-160px;width:440px;height:440px;border-radius:50%;background:radial-gradient(circle,rgba(160,68,224,.22),rgba(255,106,61,.06) 58%,transparent 72%);pointer-events:none;}
  .page-head-inner{position:relative;z-index:1;}
  .page-head h1{margin:18px 0 0;font-size:34px;font-weight:800;line-height:1.25;letter-spacing:-.5px;max-width:840px;}
  .page-head .lead{margin:16px 0 0;max-width:760px;color:var(--ink-2);font-size:16.5px;}
  .stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .stat-pill{display:inline-flex;align-items:baseline;gap:8px;padding:10px 20px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);font-size:13px;color:var(--ink-3);}
  .stat-pill b{font-size:20px;font-weight:800;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}

  /* ---------- 板块 ---------- */
  .section{padding:88px 0;}
  .section.soft{background:var(--soft);}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
  .section-title{position:relative;margin:0;padding-left:18px;font-size:26px;font-weight:700;line-height:1.35;letter-spacing:-.3px;}
  .section-title::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:6px;border-radius:99px;background:var(--brand-grad);}
  .section-head p{margin:0;color:var(--ink-3);font-size:14px;}

  /* ---------- 目录 + 主内容 3:7 ---------- */
  .cat-layout{display:grid;grid-template-columns:minmax(240px,3fr) minmax(0,7fr);gap:36px;align-items:start;}
  .toc-card{position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);}
  .toc-card h2{margin:0 0 14px;font-size:14px;font-weight:700;letter-spacing:.6px;color:var(--ink-3);}
  .toc-list{list-style:none;margin:0;padding:0;display:grid;gap:4px;}
  .toc-list a{display:block;padding:10px 12px;border-left:3px solid transparent;border-radius:12px;color:var(--ink-2);font-size:15px;transition:all .2s ease;}
  .toc-list a:hover{background:var(--soft);border-left-color:var(--brand-1);color:var(--ink);padding-left:16px;}
  .toc-note{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3);}

  .stack{display:grid;gap:24px;}
  .feature-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;}
  .feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
  .feature-media{position:relative;min-height:280px;}
  .feature-media img{width:100%;height:100%;min-height:280px;}
  .feature-body{padding:32px;}
  .feature-body h3{margin:14px 0 10px;font-size:20px;font-weight:700;line-height:1.45;}
  .feature-body p{margin:0 0 12px;color:var(--ink-2);font-size:15px;}
  .check-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:8px;font-size:15px;color:var(--ink-2);}
  .check-list li{display:flex;gap:10px;align-items:flex-start;}
  .check-list li::before{content:"✓";color:var(--accent);font-weight:800;line-height:1.8;}

  .mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .mini-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;}
  .mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
  .mini-card h3{margin:12px 0 8px;font-size:18px;font-weight:600;}
  .mini-card p{margin:0;color:var(--ink-2);font-size:15px;}

  /* ---------- 时间线 ---------- */
  .timeline{border-top:1px solid var(--line);}
  .step{display:grid;grid-template-columns:72px minmax(0,1fr);gap:20px;padding:24px 0;border-bottom:1px solid var(--line);}
  .step-num{font-size:34px;font-weight:800;line-height:1.1;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
  .step h3{margin:0 0 6px;font-size:18px;font-weight:600;}
  .step p{margin:0;color:var(--ink-2);font-size:15px;}

  /* ---------- 场景卡 ---------- */
  .scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
  .scene-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 22px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;}
  .scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
  .scene-card::before{content:"";display:block;width:44px;height:5px;border-radius:99px;background:var(--brand-grad);margin-bottom:16px;}
  .scene-card h3{margin:0 0 8px;font-size:17px;font-weight:600;}
  .scene-card p{margin:0;color:var(--ink-2);font-size:14.5px;}

  /* ---------- 相关文章 ---------- */
  .rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
  .post-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;}
  .post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
  .post-card img{width:100%;aspect-ratio:16/10;}
  .post-body{padding:18px 20px 22px;}
  .post-body h3{margin:10px 0 8px;font-size:16.5px;font-weight:600;line-height:1.55;}
  .post-meta{font-size:13px;color:var(--ink-3);}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:14px;}
  .faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
  .faq-item summary{position:relative;list-style:none;cursor:pointer;min-height:56px;padding:18px 24px 18px 34px;font-size:16px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:16px;}
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{content:"";position:absolute;left:12px;top:50%;width:6px;height:26px;border-radius:99px;background:var(--brand-grad);transform:translateY(-50%) scaleY(0);transition:transform .25s ease;}
  .faq-item[open] summary::before{transform:translateY(-50%) scaleY(1);}
  .faq-item summary::after{content:"＋";color:var(--brand-2);font-weight:700;transition:transform .25s ease;}
  .faq-item[open] summary::after{transform:rotate(45deg);}
  .faq-body{padding:0 24px 22px 34px;color:var(--ink-2);font-size:15px;animation:fadeUp .3s ease;}
  @keyframes fadeUp{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}

  /* ---------- CTA ---------- */
  .cta-band{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:44px 48px;border-radius:var(--r-xl);background:var(--brand-grad);color:#fff;box-shadow:var(--sh-3);flex-wrap:wrap;}
  .cta-band h2{margin:0 0 10px;font-size:26px;font-weight:800;letter-spacing:-.3px;}
  .cta-band p{margin:0;max-width:640px;color:rgba(255,255,255,.92);font-size:15px;}
  .cta-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
  .cta-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.18);font-size:13px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--dark);color:var(--dark-ink);padding:64px 0 28px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
  .footer-brand strong{display:block;margin-bottom:12px;font-size:20px;font-weight:800;}
  .footer-brand p{margin:0;max-width:330px;color:#C9BEDA;font-size:14.5px;}
  .footer-col h4{margin:0 0 14px;font-size:15px;color:#fff;}
  .footer-col a{display:block;padding:6px 0;color:#C9BEDA;font-size:14.5px;transition:color .2s ease;}
  .footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  .footer-bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#A79CB8;}

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .45s ease,transform .45s ease;}
  .reveal.is-visible{opacity:1;transform:none;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .nav-links{position:fixed;top:72px;right:0;width:min(320px,84vw);height:calc(100vh - 72px);background:#fff;flex-direction:column;align-items:stretch;gap:6px;padding:20px;margin-left:0;border-left:1px solid var(--line);box-shadow:-20px 0 40px rgba(27,21,38,.12);transform:translateX(105%);transition:transform .3s ease;overflow-y:auto;z-index:70;}
    .nav-links.is-open{transform:none;}
    .nav-link{font-size:18px;line-height:56px;padding:0 14px;}
    .nav-link.is-active::after{display:none;}
    .nav-toggle{display:flex;}
    .cat-layout{grid-template-columns:1fr;}
    .toc-card{position:static;}
    .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  }
  @media (max-width:900px){
    .section{padding:64px 0;}
    .feature-card{grid-template-columns:1fr;}
    .feature-media{min-height:220px;}
    .feature-media img{min-height:220px;aspect-ratio:16/10;}
    .mini-grid,.rel-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;}
    .footer-brand{grid-column:1 / -1;}
  }
  @media (max-width:720px){
    .page-head{padding:44px 0 40px;}
    .page-head h1{font-size:26px;}
    .section-title{font-size:20px;}
    .cta-band{padding:32px 24px;}
    .cta-band h2{font-size:22px;}
    .step{grid-template-columns:52px minmax(0,1fr);gap:14px;}
    .step-num{font-size:26px;}
  }
  @media (max-width:520px){
    .container{padding:0 16px;}
    .scene-grid{grid-template-columns:1fr;}
    .stat-pill{padding:8px 14px;}
    .stat-pill b{font-size:18px;}
    .cta-actions,.cta-band .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;}
    .brand-text{font-size:17px;}
  }

/* roulang page: category2 */
:root{
  --brand-1:#FF6A3D;
  --brand-2:#A044E0;
  --brand-grad:linear-gradient(118deg,#FF6A3D 0%,#D9508F 52%,#A044E0 100%);
  --accent:#17C3A2;
  --bg:#FFF8F4;
  --surface:#FFFFFF;
  --soft:#FDF1EA;
  --ink:#1B1526;
  --ink-2:#4A4358;
  --ink-3:#8A8296;
  --line:#F0E7F2;
  --dark:#241A33;
  --r-card:24px;
  --r-lg:32px;
  --r-img:20px;
  --shadow-1:0 8px 24px rgba(27,21,38,.06);
  --shadow-2:0 18px 40px rgba(160,68,224,.14);
  --gap-sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  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;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,248,244,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(27,21,38,.08);background:rgba(255,248,244,.95);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--brand-grad);
  display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:7px;
  box-shadow:0 6px 16px rgba(160,68,224,.28);
}
.brand-mark span{border-radius:3px;background:rgba(255,255,255,.9);}
.brand-mark span:nth-child(2),.brand-mark span:nth-child(3){background:rgba(255,255,255,.55);}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.4px;color:var(--ink);}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  border-radius:999px;
  transition:color .2s ease,transform .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:999px;
  background:var(--brand-grad);transform:scaleX(0);transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand-2);transform:translateY(-1px);background:rgba(160,68,224,.06);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-2);transition:transform .25s ease,opacity .25s ease;}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-open .nav-toggle span:nth-child(2){opacity:0;}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-overlay{
  position:fixed;inset:0;background:rgba(27,21,38,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:55;
}
.nav-open .nav-overlay{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease,color .2s ease,background .2s ease;
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-primary{
  color:#fff;background:var(--brand-grad);
  box-shadow:0 10px 24px rgba(160,68,224,.25);
}
.btn-primary:hover{filter:brightness(1.06);transform:scale(1.02);box-shadow:0 14px 30px rgba(160,68,224,.32);}
.btn-primary:active{transform:scale(.99);}
.btn-ghost{
  position:relative;color:var(--ink);background:#fff;
}
.btn-ghost::before{
  content:"";position:absolute;inset:0;border-radius:999px;padding:1px;
  background:var(--brand-grad);
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;
  mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  mask-composite:exclude;
  pointer-events:none;
}
.btn-ghost:hover{color:var(--brand-2);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-2);
}
.link-arrow span{transition:transform .25s ease;}
.link-arrow:hover span{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.pill-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.5px;
  color:var(--brand-2);background:rgba(160,68,224,.08);
  border:1px solid rgba(160,68,224,.18);
}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.stat-pill{
  display:inline-flex;align-items:baseline;gap:6px;
  padding:9px 16px;border-radius:999px;
  font-size:13px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.stat-pill b{
  font-size:19px;font-weight:800;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.tag-mint{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:#0E8E77;background:rgba(23,195,162,.12);
}

/* ---------- 页面头 ---------- */
.page-head{
  position:relative;overflow:hidden;
  background:var(--soft);
  border-bottom:1px solid var(--line);
  padding:76px 0 68px;
}
.page-head::after{
  content:"";position:absolute;right:-140px;bottom:-180px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at 32% 32%,rgba(255,106,61,.30),rgba(160,68,224,.15) 55%,rgba(160,68,224,0) 72%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2;max-width:900px;}
.page-head h1{
  font-size:34px;font-weight:800;letter-spacing:-.5px;line-height:1.25;
  margin:18px 0 0;
}
.page-head .lead{
  margin-top:18px;font-size:16.5px;line-height:1.85;color:var(--ink-2);
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--gap-sec) 0;}
.section-head{margin-bottom:32px;max-width:760px;}
.section-head h2{
  position:relative;
  font-size:26px;font-weight:700;line-height:1.35;letter-spacing:-.3px;
  padding-left:18px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:999px;
  background:var(--brand-grad);
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:15.5px;}

/* ---------- 编号清单 ---------- */
.feature-list{border-top:1px solid var(--line);}
.feature-item{
  position:relative;
  display:grid;
  grid-template-columns:96px minmax(0,1fr) 240px;
  gap:36px;
  align-items:center;
  padding:40px 0;
  border-bottom:1px solid var(--line);
  transition:transform .25s ease,background .25s ease;
}
.feature-item:hover{transform:translateY(-3px);}
.feature-num{
  font-size:46px;font-weight:800;line-height:1;letter-spacing:-2px;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.feature-body h3{font-size:19px;font-weight:600;letter-spacing:-.2px;}
.feature-body p{margin-top:10px;font-size:15.5px;line-height:1.8;color:var(--ink-2);}
.feature-note{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13px;color:var(--ink-3);
}
.feature-note i{
  width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;flex-shrink:0;
}
.feature-thumb{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);
  background:var(--soft);
  box-shadow:var(--shadow-1);
}
.feature-thumb img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .45s ease;
}
.feature-item:hover .feature-thumb img{transform:scale(1.04);}

/* ---------- 相关主题 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.rel-card h3{font-size:17px;font-weight:600;line-height:1.55;}
.rel-card h3 a:hover{color:var(--brand-2);}
.rel-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);margin-top:auto;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:0 26px 0 30px;
  overflow:hidden;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:6px;border-radius:999px;
  background:var(--brand-grad);opacity:0;transition:opacity .25s ease;
}
.faq-item[open]::before{opacity:1;}
.faq-item[open]{box-shadow:var(--shadow-1);border-color:rgba(160,68,224,.2);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 0;
  font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex-shrink:0;
  width:10px;height:10px;margin-right:4px;
  border-right:2px solid var(--brand-2);border-bottom:2px solid var(--brand-2);
  transform:rotate(45deg) translate(-2px,-2px);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(225deg) translate(-2px,-2px);}
.faq-body{padding:0 0 22px;animation:faqIn .3s ease both;}
.faq-body p{font-size:15px;line-height:1.8;color:var(--ink-2);}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 var(--gap-sec);}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--brand-grad);
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  color:#fff;
  box-shadow:0 24px 56px rgba(160,68,224,.26);
}
.cta-card::after{
  content:"";position:absolute;right:-90px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle at 40% 40%,rgba(255,255,255,.28),rgba(255,255,255,0) 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-copy h2{font-size:26px;font-weight:700;line-height:1.35;letter-spacing:-.3px;}
.cta-copy p{margin-top:12px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.9);}
.check-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.check-row li{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;
  font-size:13px;font-weight:500;
  background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.28);
}
.check-row li svg{width:14px;height:14px;flex-shrink:0;}
.cta-card .btn-light{
  position:relative;z-index:2;
  background:#fff;color:#8A2FC4;font-weight:700;
  box-shadow:0 12px 26px rgba(27,21,38,.18);
}
.cta-card .btn-light:hover{transform:scale(1.02);filter:brightness(1.02);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C9BEDA;padding:72px 0 26px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand strong{
  display:block;font-size:19px;font-weight:800;color:#fff;letter-spacing:-.3px;
}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:#B7A9CC;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-col a{
  display:block;font-size:14px;line-height:2.1;color:#C9BEDA;
  transition:color .2s ease,text-decoration-color .2s ease;
}
.footer-col a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:22px;font-size:13px;color:#9C90B2;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s ease,transform .45s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--gap-sec:64px;}
  .nav-links{
    position:fixed;top:0;right:0;z-index:58;
    width:280px;height:100vh;
    flex-direction:column;align-items:flex-start;gap:0;
    background:#fff;padding:88px 20px 28px;
    box-shadow:-16px 0 40px rgba(27,21,38,.14);
    transform:translateX(102%);
    transition:transform .3s cubic-bezier(.4,0,.2,1);
    overflow-y:auto;
  }
  .nav-open .nav-links{transform:translateX(0);}
  .nav-link{width:100%;font-size:17px;line-height:56px;padding:0 12px;border-radius:14px;}
  .nav-link::after{left:12px;right:auto;width:36px;bottom:8px;}
  .nav-toggle{display:flex;}
  .nav-actions .btn-sm{display:none;}
  .feature-item{grid-template-columns:72px minmax(0,1fr) 200px;gap:26px;}
  .feature-num{font-size:38px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  :root{--gap-sec:48px;}
  .container{padding:0 16px;}
  .nav-inner{height:66px;}
  .brand-text{font-size:17px;}
  .page-head{padding:56px 0 48px;}
  .page-head h1{font-size:26px;}
  .page-head .lead{font-size:15.5px;}
  .section-head h2{font-size:20px;padding-left:14px;}
  .section-head h2::before{width:5px;}
  .feature-item{grid-template-columns:1fr;gap:18px;padding:32px 0;}
  .feature-num{font-size:34px;}
  .feature-thumb{max-width:340px;}
  .rel-grid{grid-template-columns:1fr;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 26px;gap:24px;}
  .cta-copy h2{font-size:20px;}
  .cta-card .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .site-footer{padding:56px 0 22px;}
}
@media (max-width:520px){
  .stat-row{gap:10px;}
  .stat-pill{font-size:12px;padding:8px 13px;}
  .rel-card{padding:24px 20px;}
  .faq-item{padding:0 18px 0 22px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --brand-1:#FF6A3D;
  --brand-2:#A044E0;
  --brand-grad:linear-gradient(118deg,#FF6A3D 0%,#D9508F 52%,#A044E0 100%);
  --accent:#17C3A2;
  --bg:#FFF8F4;
  --surface:#FFFFFF;
  --soft:#FDF1EA;
  --ink:#1B1526;
  --ink-2:#4A4358;
  --ink-3:#8A8296;
  --line:#F0E7F2;
  --dark:#241A33;
  --r-xl:32px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --shadow-1:0 8px 24px rgba(27,21,38,.06);
  --shadow-2:0 18px 40px rgba(160,68,224,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:8px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,248,244,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(27,21,38,.08)}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{width:30px;height:30px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px}
.brand-mark span{border-radius:5px;display:block}
.brand-mark span:nth-child(1){background:var(--brand-1)}
.brand-mark span:nth-child(2){background:#D9508F;opacity:.85}
.brand-mark span:nth-child(3){background:var(--brand-2);opacity:.85}
.brand-mark span:nth-child(4){background:var(--accent);opacity:.7}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.4px;color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;
  padding:9px 15px;
  border-radius:999px;
  font-size:15px;
  color:var(--ink-2);
  transition:color .2s ease,transform .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-2);background:rgba(160,68,224,.07);transform:translateY(-1px)}
.nav-link.is-active{
  font-weight:700;
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:2px;
  height:3px;
  border-radius:3px;
  background:var(--brand-grad);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  font-weight:600;
  line-height:1;
  padding:15px 28px;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,background .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-primary{
  background:var(--brand-grad);
  color:#fff;
  box-shadow:0 10px 24px rgba(160,68,224,.25);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px) scale(1.02);box-shadow:0 16px 32px rgba(160,68,224,.3)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  border:1px solid transparent;
  color:var(--ink);
  box-shadow:var(--shadow-1);
}
.btn-ghost:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(160,68,224,.16);color:var(--brand-2)}
.btn-light{background:#fff;color:#A044E0;box-shadow:0 12px 26px rgba(27,21,38,.16)}
.btn-light:hover{transform:translateY(-1px) scale(1.02);filter:brightness(1.03)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-2);font-weight:600;font-size:14px;transition:gap .2s ease,color .2s ease}
.link-arrow:hover{gap:10px;color:#7f2fc0}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  background:#fff;border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-2);transition:.25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.nav-overlay{
  position:fixed;inset:0;background:rgba(27,21,38,.45);
  opacity:0;visibility:hidden;transition:.25s ease;z-index:70;
}
.nav-overlay.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:80;padding:24px 22px;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;gap:6px;
  box-shadow:-18px 0 40px rgba(27,21,38,.16);
}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer .drawer-brand{font-weight:800;font-size:18px;margin-bottom:14px}
.nav-drawer a{
  display:flex;align-items:center;min-height:56px;font-size:17px;
  color:var(--ink-2);border-bottom:1px solid var(--line);
}
.nav-drawer a.is-active{color:var(--brand-2);font-weight:700}
.nav-drawer .btn{margin-top:20px;width:100%}

/* ---------- 页面头 ---------- */
.page-head{
  position:relative;
  overflow:hidden;
  background:var(--soft);
  border-bottom:1px solid var(--line);
  padding:60px 0 54px;
}
.page-head::after{
  content:"";position:absolute;right:-120px;bottom:-160px;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(160,68,224,.18),rgba(255,106,61,.10) 45%,transparent 70%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.5px;color:var(--brand-2);
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  border:1px solid transparent;
}
h1.page-title{
  margin-top:18px;
  font-size:34px;font-weight:800;letter-spacing:-.5px;line-height:1.25;
  max-width:820px;
}
.page-lead{margin-top:16px;max-width:760px;color:var(--ink-2);font-size:16.5px}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.stat-chip{
  display:inline-flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:10px 18px;box-shadow:var(--shadow-1);
}
.stat-chip i{color:var(--accent)}
.stat-chip b{font-variant-numeric:tabular-nums;font-size:17px;font-weight:800;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-chip span{font-size:13px;color:var(--ink-3)}

/* ---------- 通用板块 ---------- */
.sec{padding:72px 0}
.sec-soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:30px}
.sec-title{position:relative;padding-left:17px;font-size:26px;font-weight:700;letter-spacing:-.3px}
.sec-title::before{
  content:"";position:absolute;left:0;top:5px;
  width:6px;height:22px;border-radius:3px;background:var(--brand-grad);
}
.sec-desc{margin-top:10px;color:var(--ink-3);font-size:14.5px;max-width:640px}

/* ---------- 对比双卡 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-card{
  background:var(--surface);
  border-radius:var(--r-xl);
  padding:34px 32px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.compare-card.is-grad{
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
}
.compare-card h3{font-size:20px;font-weight:700;margin-bottom:8px}
.compare-card .compare-note{font-size:14px;color:var(--ink-3);margin-bottom:20px}
.compare-list li{display:flex;gap:12px;padding:13px 0;border-top:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.compare-list li:first-child{border-top:none;padding-top:0}
.compare-list i{color:var(--accent);margin-top:6px;font-size:14px}
.compare-card.is-grad .compare-list i{color:var(--brand-1)}

/* ---------- 阅读顺序 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step-num{
  width:44px;height:44px;border-radius:14px;background:var(--brand-grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px}
.step p{font-size:14px;color:var(--ink-3);line-height:1.75}

/* ---------- 问答手风琴 ---------- */
.qa-list{max-width:900px}
.qa-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);margin-bottom:14px;overflow:hidden;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.qa-item:hover{border-color:#E7D8EE}
.qa-item[open]{box-shadow:var(--shadow-1)}
.qa-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
  background:var(--brand-grad);opacity:0;transition:opacity .25s ease;
}
.qa-item[open]::before{opacity:1}
.qa-item summary{
  display:flex;align-items:center;gap:16px;
  min-height:56px;padding:16px 26px;
  font-size:17px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.qa-item summary::-webkit-details-marker{display:none}
.qa-item summary::after{
  content:"";width:9px;height:9px;margin-left:auto;flex:0 0 auto;
  border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);transition:transform .25s ease,border-color .25s ease;
}
.qa-item[open] summary::after{transform:rotate(-135deg);border-color:var(--brand-2)}
.qa-body{padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--ink-2);animation:fadeUp .3s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- 三列小卡 ---------- */
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mini-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 26px;transition:transform .25s ease,box-shadow .25s ease;
}
.mini-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--brand-grad);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.mini-icon{
  width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(160,68,224,.09);color:var(--brand-2);margin-bottom:16px;font-size:17px;
}
.mini-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.mini-card p{font-size:14.5px;color:var(--ink-3);line-height:1.78}
.mini-card .link-arrow{margin-top:16px}

/* ---------- 内容动态 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--soft)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-tag{
  position:absolute;left:14px;top:14px;
  padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.5px;
  background:rgba(160,68,224,.12);color:var(--brand-2);font-weight:600;
  backdrop-filter:blur(6px);
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:600;line-height:1.55}
.post-body p{font-size:13.5px;color:var(--ink-3);line-height:1.75}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);padding-top:10px;border-top:1px solid var(--line);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-grad);
  border-radius:var(--r-xl);
  padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  color:#fff;box-shadow:0 22px 50px rgba(160,68,224,.24);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.28),transparent 65%);
}
.cta-band h2{font-size:26px;font-weight:800;letter-spacing:-.3px;position:relative;z-index:2}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9);position:relative;z-index:2;max-width:620px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{background-image:linear-gradient(rgba(255,255,255,.16),rgba(255,255,255,.16));border:1px solid rgba(255,255,255,.6);color:#fff;box-shadow:none;backdrop-filter:blur(4px)}
.cta-band .btn-ghost:hover{background-image:linear-gradient(rgba(255,255,255,.26),rgba(255,255,255,.26));color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#F7F2FA;padding:60px 0 24px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand strong{display:block;font-size:19px;font-weight:800;letter-spacing:-.3px;margin-bottom:12px}
.footer-brand p{font-size:14px;line-height:1.85;color:#C9BEDA;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:14px;color:#fff}
.footer-col a{display:block;font-size:14px;color:#C9BEDA;padding:6px 0;transition:color .2s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;
  font-size:13px;color:#C9BEDA;
}

/* ---------- 滚动进入 ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity .4s ease,transform .4s ease}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .sec{padding:60px 0}
  .compare{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .mini-grid{grid-template-columns:1fr 1fr}
  .post-grid{grid-template-columns:1fr 1fr}
  h1.page-title{font-size:30px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:768px){
  .sec{padding:48px 0}
  .container{padding:0 16px}
  h1.page-title{font-size:26px}
  .page-lead{font-size:15.5px}
  .sec-title{font-size:20px}
  .sec-title::before{height:18px;top:4px}
  .mini-grid,.post-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cta-band h2{font-size:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .nav-actions .btn{display:none}
  .qa-item summary{padding:14px 18px;font-size:16px}
  .qa-body{padding:0 18px 20px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .stat-chip{padding:9px 14px}
  .stat-chip b{font-size:15px}
  .compare-card{padding:26px 22px}
}