/* roulang page: index */
:root{
  --brand:#E24B26;
  --brand-deep:#B5321A;
  --accent:#17A88C;
  --accent-tint:#E6F6F2;
  --highlight:#FFD166;
  --ink:#16181D;
  --ink-2:#3D444F;
  --ink-3:#6B7280;
  --paper:#FAF7F1;
  --card:#FFFFFF;
  --line:#E4E0D8;
  --tint:#FDECE6;
  --hover-tint:#F1EDE4;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(22,24,29,.06), 0 8px 24px -12px rgba(22,24,29,.18);
  --sh-2:0 12px 32px -14px rgba(22,24,29,.26);
  --maxw:1200px;
}
*,*::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","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  color:var(--ink-2);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:0;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.section{padding:88px 0;border-bottom:1px solid var(--line);}
.section-last{border-bottom:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--accent);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px;}
.h2{
  font-size:28px;line-height:1.35;font-weight:700;color:var(--ink);
  padding-left:12px;border-left:4px solid var(--brand);
  margin-bottom:16px;
}
.lead{font-size:16px;line-height:1.85;color:var(--ink-2);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,247,241,.92);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:18px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:8px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.logo-mark svg{width:18px;height:18px;}
.logo-text{
  font-size:18px;font-weight:800;color:var(--ink);
  white-space:nowrap;line-height:1.2;
}
.nav-tabs{display:flex;align-items:center;gap:2px;margin-left:6px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:999px;font-size:13px;font-weight:500;
  color:var(--ink-2);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.chip:hover{background:var(--hover-tint);color:var(--ink);}
.chip.active{background:var(--brand);color:#fff;font-weight:600;}
.chip.active:hover{background:var(--brand-deep);color:#fff;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;text-align:center;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand);}
.btn-primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(226,75,38,.85);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink);font-size:14px;font-weight:600;
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.btn-link .arrow{transition:transform .18s ease;}
.btn-link:hover{color:var(--brand);border-bottom-color:rgba(226,75,38,.4);}
.btn-link:hover .arrow{transform:translateX(3px);}

.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);
  border-radius:10px;background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.nav-mask{position:fixed;inset:0;background:rgba(22,24,29,.45);opacity:0;pointer-events:none;transition:opacity .2s ease;z-index:55;}
.nav-mask.open{opacity:1;pointer-events:auto;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;
  background:var(--paper);z-index:60;padding:22px 20px 20px;
  transform:translateX(100%);transition:transform .22s ease;
  display:flex;flex-direction:column;border-left:1px solid var(--line);
  overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:14px;font-weight:600;color:var(--ink-3);}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:18px;color:var(--ink);cursor:pointer;line-height:1;}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}
.drawer-links a{
  display:block;padding:12px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--ink-2);border:1px solid transparent;
}
.drawer-links a:hover{background:var(--hover-tint);color:var(--ink);}
.drawer-links a.active{background:var(--brand);color:#fff;font-weight:600;}
.drawer-cta{margin-top:auto;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:80px 0 76px;border-bottom:1px solid var(--line);}
.hero::before{
  content:"";position:absolute;top:-130px;right:-110px;
  width:240px;height:240px;border-radius:50%;
  background:rgba(226,75,38,.08);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;top:26px;right:24px;width:140px;height:140px;
  background-image:radial-gradient(rgba(22,24,29,.55) 1px, transparent 1px);
  background-size:10px 10px;opacity:.06;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--tint);color:var(--brand-deep);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;
  margin-bottom:20px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);}
.hero-title{
  font-size:44px;line-height:1.18;font-weight:800;color:var(--ink);
  margin-bottom:18px;
}
.hero-title em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-3);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-stats{display:flex;align-items:flex-start;gap:0;margin-top:36px;}
.hero-stats .stat{padding:0 24px;}
.hero-stats .stat:first-child{padding-left:0;}
.hero-stats .stat + .stat{border-left:1px solid var(--line);}
.stat-num{
  font-size:26px;font-weight:800;color:var(--ink);line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-label{font-size:12px;color:var(--ink-3);margin-top:2px;line-height:1.5;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);
}
.hero-float{
  position:absolute;right:-10px;bottom:-20px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;box-shadow:var(--sh-1);min-width:172px;
}
.hero-float .f-label{font-size:12px;color:var(--ink-3);line-height:1.5;}
.hero-float .f-value{
  font-size:22px;font-weight:800;color:var(--brand);line-height:1.3;
  font-variant-numeric:tabular-nums;
}

/* ---------- promise ---------- */
.promise{background:var(--card);padding:26px 0;border-bottom:1px solid var(--line);}
.promise-row{display:flex;gap:12px;overflow-x:auto;padding-bottom:2px;-webkit-overflow-scrolling:touch;}
.promise-row::-webkit-scrollbar{height:0;}
.pill{
  flex:0 0 auto;background:var(--tint);color:var(--brand-deep);
  font-size:14px;font-weight:500;padding:8px 18px;border-radius:999px;
  white-space:nowrap;
}

/* ---------- story ---------- */
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.story-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.story-body p + p{margin-top:14px;}
.timeline{margin-top:30px;}
.timeline li{position:relative;padding-left:26px;padding-bottom:22px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
  border-radius:50%;background:var(--brand);
}
.timeline li::after{
  content:"";position:absolute;left:3.5px;top:21px;bottom:0;width:1px;background:var(--line);
}
.timeline li:last-child::after{display:none;}
.tl-title{font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;}
.tl-desc{font-size:14px;color:var(--ink-3);line-height:1.7;margin-top:2px;}

/* ---------- cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.card:hover{border-color:rgba(226,75,38,.35);transform:translateY(-4px);box-shadow:var(--sh-2);}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;line-height:1.4;
  padding:4px 11px;border-radius:999px;
}
.badge-accent{background:var(--accent-tint);color:#0E7A66;}
.badge-tint{background:var(--tint);color:var(--brand-deep);}
.badge-hl{background:var(--highlight);color:#6B4A00;}
.meta{font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;}

/* ---------- feature grid ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-top:34px;}
.feature-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.feature-main:hover{border-color:rgba(226,75,38,.35);transform:translateY(-4px);box-shadow:var(--sh-2);}
.feature-main .thumb{overflow:hidden;}
.feature-main .thumb img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform .4s ease;
}
.feature-main:hover .thumb img{transform:scale(1.03);}
.feature-main .fbody{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.feature-main h3{font-size:22px;line-height:1.45;font-weight:700;color:var(--ink);}
.feature-main:hover h3{color:var(--brand);}
.feature-main .fdesc{font-size:14px;line-height:1.8;color:var(--ink-3);}
.feature-main .fmeta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px;}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.mini-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;display:flex;flex-direction:column;gap:10px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.mini-card:hover{border-color:rgba(226,75,38,.35);transform:translateY(-4px);box-shadow:var(--sh-2);}
.mini-card h3{font-size:16px;line-height:1.55;font-weight:600;color:var(--ink);}
.mini-card:hover h3{color:var(--brand);}
.mini-card p{font-size:13px;line-height:1.7;color:var(--ink-3);}
.mini-card .meta{margin-top:auto;}

/* ---------- cms list ---------- */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.cms-list{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.cms-item{
  display:flex;flex-direction:column;gap:10px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.cms-item:hover{border-color:rgba(226,75,38,.35);transform:translateY(-4px);box-shadow:var(--sh-2);}
.cms-title{
  font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease,transform .18s ease;
}
.cms-item:hover .cms-title{color:var(--brand);transform:translateX(2px);}
.cms-desc{
  font-size:14px;line-height:1.75;color:var(--ink-3);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px;}
.cms-arrow{color:var(--ink-3);font-size:15px;transition:transform .18s ease,color .18s ease;}
.cms-item:hover .cms-arrow{transform:translateX(3px);color:var(--brand);}
.cms-empty{
  min-height:240px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--card);display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:32px;text-align:center;
}
.cms-empty svg{width:40px;height:40px;color:var(--ink-3);opacity:.6;}
.cms-empty p{font-size:14px;color:var(--ink-3);}

/* ---------- proof ---------- */
.proof-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.proof-stats{display:grid;grid-template-columns:1fr 1fr;gap:28px 32px;}
.proof-stat{border-top:1px solid var(--line);padding-top:16px;}
.proof-num{
  font-size:40px;font-weight:800;color:var(--brand);line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.proof-label{font-size:14px;color:var(--ink-2);margin-top:4px;line-height:1.6;}
.proof-note{font-size:12px;color:var(--ink-3);margin-top:2px;}
.logo-strip{
  display:grid;grid-template-columns:repeat(6,1fr);gap:14px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}
.logo-strip span{
  height:46px;border-radius:8px;background:#F0EDE6;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--ink-3);text-align:center;line-height:1.4;
  filter:grayscale(1);transition:filter .2s ease,background .2s ease;
  padding:0 8px;
}
.logo-strip span:hover{filter:grayscale(0);background:var(--tint);color:var(--brand-deep);}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-aside{position:sticky;top:96px;}
.faq-aside .lead{margin-top:4px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-item.open .faq-q{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:20px;height:20px;color:var(--ink-3);
  transition:transform .2s ease,color .18s ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg);color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-2);padding-bottom:20px;}

/* ---------- cta ---------- */
.cta-section{padding:88px 0;}
.cta-block{
  position:relative;overflow:hidden;
  background:var(--brand);border-radius:20px;padding:56px;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  color:#fff;
}
.cta-block::before{
  content:"";position:absolute;top:-140px;right:-90px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.09);pointer-events:none;
}
.cta-block h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:12px;}
.cta-block p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86);}
.cta-form{position:relative;display:flex;gap:12px;}
.cta-form input{
  flex:1;min-width:0;height:48px;border-radius:10px;border:1px solid transparent;
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.cta-form input::placeholder{color:var(--ink-3);}
.cta-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(23,168,140,.28);}
.cta-form button{
  height:48px;padding:0 24px;border-radius:10px;border:1px solid #fff;
  background:#fff;color:var(--brand-deep);font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.cta-form button:hover{background:var(--ink);border-color:var(--ink);color:#fff;transform:translateY(-1px);}
.cta-note{font-size:12px;color:rgba(255,255,255,.72);margin-top:12px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:300px;}
.footer-kw{font-size:12px;color:rgba(255,255,255,.42);margin-top:12px;line-height:1.7;}
.footer-title{font-size:14px;font-weight:600;color:var(--paper);margin-bottom:16px;line-height:1.5;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--brand);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.72);line-height:1.8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;
  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,.62);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-tabs{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid,.story-grid,.proof-grid,.faq-grid{grid-template-columns:1fr;gap:40px;}
  .faq-aside{position:static;}
  .feature-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero{padding:60px 0 64px;}
  .section{padding:64px 0;}
  .cta-section{padding:64px 0;}
  .cta-block{padding:44px;}
  .logo-strip{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:768px){
  .wrap{padding:0 24px;}
  .hero-title{font-size:32px;}
  .h2{font-size:22px;}
  .hero-stats{flex-wrap:wrap;gap:18px 0;}
  .hero-stats .stat{padding:0 20px;}
  .hero-stats .stat:first-child{padding-left:0;}
  .cms-list{grid-template-columns:1fr;}
  .proof-stats{grid-template-columns:1fr 1fr;gap:24px;}
  .cta-block{grid-template-columns:1fr;gap:28px;padding:36px 28px;}
  .cta-block h2{font-size:22px;}
  .cta-form{flex-direction:column;}
  .cta-form button{width:100%;}
  .mini-grid{grid-template-columns:1fr;}
}
@media (max-width:640px){
  .wrap{padding:0 20px;}
  .header-inner{height:60px;gap:12px;}
  .logo-text{font-size:15px;}
  .logo-mark{width:28px;height:28px;border-radius:7px;}
  .logo-mark svg{width:16px;height:16px;}
  .header-actions .btn-sm{display:none;}
  .hero{padding:44px 0 56px;}
  .hero-title{font-size:27px;line-height:1.25;}
  .hero-sub{font-size:15px;}
  .hero-float{right:8px;bottom:-16px;padding:12px 14px;min-width:150px;}
  .hero-float .f-value{font-size:19px;}
  .section{padding:48px 0;}
  .cta-section{padding:48px 0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .logo-strip{grid-template-columns:1fr 1fr;}
  .proof-num{font-size:32px;}
  .stat-num{font-size:22px;}
  .cms-item{padding:18px;}
  .card{padding:20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: article */
:root{
    --brand:#E24B26;
    --brand-deep:#B5321A;
    --accent:#17A88C;
    --highlight:#FFD166;
    --ink:#16181D;
    --ink-2:#3D444F;
    --ink-3:#6B7280;
    --paper:#FAF7F1;
    --card:#FFFFFF;
    --line:#E4E0D8;
    --tint:#FDECE6;
    --accent-soft:#E6F6F2;
    --hover-tint:#F1EDE4;
    --radius:14px;
    --radius-md:12px;
    --radius-sm:10px;
    --shadow-1:0 1px 2px rgba(22,24,29,.06), 0 8px 24px -12px rgba(22,24,29,.18);
    --shadow-2:0 12px 32px -14px rgba(22,24,29,.26);
    --wrap:1200px;
    --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink-2);
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.8;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;}
  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:2px;border-radius:4px;}

  .wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px;}
  @media (min-width:768px){.wrap{padding:0 24px;}}
  @media (min-width:1280px){.wrap{padding:0 32px;}}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(250,247,241,.94);
    border-bottom:1px solid var(--line);
    backdrop-filter:saturate(150%) blur(8px);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--shadow-1);}
  .header-inner{
    display:flex;align-items:center;gap:20px;
    height:60px;
  }
  @media (min-width:1024px){.header-inner{height:68px;gap:28px;}}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{
    width:32px;height:32px;border-radius:8px;
    background:var(--brand);
    display:inline-flex;align-items:center;justify-content:center;
    flex-shrink:0;
    box-shadow:0 6px 14px -8px rgba(226,75,38,.8);
  }
  .logo-mark svg{width:18px;height:18px;}
  .logo-text{
    font-size:17px;font-weight:800;color:var(--ink);
    letter-spacing:0;white-space:nowrap;
  }
  @media (min-width:1024px){.logo-text{font-size:18px;}}
  .nav-tabs{display:none;align-items:center;gap:4px;flex:1;justify-content:center;}
  @media (min-width:1024px){.nav-tabs{display:flex;}}
  .chip{
    display:inline-flex;align-items:center;
    height:34px;padding:0 14px;border-radius:999px;
    font-size:14px;font-weight:500;color:var(--ink-2);
    white-space:nowrap;
    transition:background-color .18s ease,color .18s ease;
  }
  .chip:hover{background:var(--hover-tint);color:var(--ink);}
  .chip.active{background:var(--brand);color:#fff;font-weight:600;}
  .chip.active:hover{background:var(--brand-deep);color:#fff;}
  .header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;line-height:1;
    padding:0 22px;height:44px;
    border:1.5px solid transparent;
    transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--brand);color:#fff;}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(226,75,38,.95);}
  .btn-primary:active{transform:translateY(0);box-shadow:none;}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;}
  .btn-lg{height:50px;padding:0 28px;font-size:16px;}
  .btn[disabled]{opacity:.45;cursor:not-allowed;}

  .nav-toggle{
    display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
    width:40px;height:40px;padding:0 9px;
    background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  }
  .nav-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:transform .2s 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);}
  @media (min-width:1024px){.nav-toggle{display:none;}}

  .nav-mask{
    position:fixed;inset:0;background:rgba(22,24,29,.45);
    opacity:0;pointer-events:none;transition:opacity .2s ease;z-index:55;
  }
  .nav-mask.is-open{opacity:1;pointer-events:auto;}
  .mobile-drawer{
    position:fixed;top:0;right:0;height:100%;width:82vw;max-width:340px;
    background:var(--paper);border-left:1px solid var(--line);
    transform:translateX(102%);transition:transform .2s ease;
    z-index:60;display:flex;flex-direction:column;
    padding:22px 20px 20px;
  }
  .mobile-drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
  .drawer-title{font-size:15px;font-weight:700;color:var(--ink);}
  .drawer-close{
    width:34px;height:34px;border-radius:8px;border:1px solid var(--line);
    background:transparent;color:var(--ink);font-size:18px;line-height:1;
    display:inline-flex;align-items:center;justify-content:center;
  }
  .drawer-close:hover{background:var(--hover-tint);}
  .drawer-links{display:flex;flex-direction:column;gap:6px;}
  .drawer-links a{
    display:block;padding:12px 14px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:500;color:var(--ink-2);
  }
  .drawer-links a:hover{background:var(--hover-tint);color:var(--ink);}
  .drawer-links a.active{background:var(--brand);color:#fff;}
  .drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}

  /* ---------- Article head ---------- */
  .article-head{padding:24px 0 34px;border-bottom:1px solid var(--line);}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;color:var(--ink-3);margin-bottom:20px;
  }
  .breadcrumb a{color:var(--ink-3);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:#B9B3A7;}
  .breadcrumb .current{
    color:var(--ink-3);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    background:var(--accent-soft);color:#0F7A66;
    font-size:12px;font-weight:600;line-height:1;
    padding:7px 12px;border-radius:999px;
  }
  .badge-hot{background:var(--highlight);color:#6B4B00;}
  .article-title{
    font-size:26px;line-height:1.3;font-weight:700;color:var(--ink);
    margin:14px 0 0;letter-spacing:0;
  }
  @media (min-width:768px){.article-title{font-size:34px;}}
  @media (min-width:1024px){.article-title{font-size:36px;}}
  .article-meta{
    display:flex;align-items:center;flex-wrap:wrap;gap:10px;
    font-size:13px;color:var(--ink-3);margin-top:16px;
    font-variant-numeric:tabular-nums;
  }
  .article-meta .dot{width:1px;height:12px;background:var(--line);display:inline-block;}
  .title-rule{width:48px;height:3px;background:var(--brand);border-radius:2px;margin-top:22px;}

  /* ---------- Layout ---------- */
  .article-main{padding:36px 0 8px;}
  @media (min-width:1024px){.article-main{padding:52px 0 16px;}}
  .article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;}
  @media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:48px;}}
  .article-col{min-width:0;max-width:760px;}

  /* ---------- Article body ---------- */
  .article-body{font-size:17px;line-height:1.9;color:var(--ink-2);overflow-wrap:break-word;word-break:break-word;}
  .article-body > *:first-child{margin-top:0;}
  .article-body > p:first-of-type{font-weight:500;color:var(--ink);}
  .article-body p{margin:1.25em 0;}
  .article-body h2{
    font-size:22px;line-height:1.4;font-weight:700;color:var(--ink);
    margin:40px 0 16px;border-left:4px solid var(--brand);padding-left:12px;
  }
  @media (min-width:768px){.article-body h2{font-size:26px;}}
  .article-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink);margin:28px 0 12px;}
  .article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:22px 0 10px;}
  .article-body ul,.article-body ol{padding-left:1.5em;margin:1.1em 0;}
  .article-body ul{list-style:disc;}
  .article-body ol{list-style:decimal;}
  .article-body li{margin:8px 0;}
  .article-body li::marker{color:var(--brand);}
  .article-body strong{color:var(--ink);font-weight:600;}
  .article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
  .article-body a:hover{color:var(--brand);}
  .article-body blockquote{
    margin:24px 0;padding:16px 20px;
    background:var(--tint);border-left:4px solid var(--brand);
    border-radius:0 var(--radius-md) var(--radius-md) 0;
    color:var(--ink-2);
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{border-radius:var(--radius-md);margin:24px 0;width:100%;height:auto;}
  .article-body figure{margin:24px 0;}
  .article-body figcaption{font-size:12px;color:var(--ink-3);margin-top:-14px;margin-bottom:24px;text-align:center;}
  .article-body table{
    width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;
    display:block;overflow-x:auto;
  }
  .article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top;}
  .article-body th{background:#F3F0E9;font-weight:600;color:var(--ink);white-space:nowrap;}
  .article-body tr:hover td{background:#FCF6F2;}
  .article-body code{
    background:#F1EDE4;color:var(--brand-deep);
    padding:2px 5px;border-radius:2px;font-size:.92em;
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  }
  .article-body pre{
    background:#1F2229;color:#F2EFE9;padding:16px 18px;border-radius:var(--radius-md);
    overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
  }
  .article-body pre code{background:none;color:inherit;padding:0;}
  .article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

  .cms-empty{
    min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
    border:1px dashed #CFC9BC;border-radius:var(--radius);background:#fff;
    padding:32px 20px;text-align:center;
  }
  .cms-empty svg{width:34px;height:34px;stroke:var(--ink-3);}
  .cms-empty p{font-size:15px;color:var(--ink-3);margin:0;}

  /* ---------- Sidebar ---------- */
  .article-side{display:flex;flex-direction:column;gap:20px;}
  @media (min-width:1024px){
    .article-side{position:sticky;top:88px;align-self:start;}
  }
  .side-card{
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius);padding:20px;
    box-shadow:var(--shadow-1);
  }
  .side-card h2,.side-card h3{
    font-size:15px;font-weight:700;color:var(--ink);margin:0 0 14px;
    display:flex;align-items:center;gap:8px;
  }
  .side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--brand);}
  .side-list{display:flex;flex-direction:column;}
  .side-list a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:11px 0;border-bottom:1px solid var(--line);
    font-size:14px;color:var(--ink-2);transition:color .18s ease;
  }
  .side-list li:last-child a{border-bottom:none;padding-bottom:0;}
  .side-list a:hover{color:var(--brand);}
  .side-list .arrow{color:var(--ink-3);font-size:14px;transition:transform .18s ease;}
  .side-list a:hover .arrow{transform:translateX(3px);color:var(--brand);}
  .side-note{font-size:13.5px;line-height:1.85;color:var(--ink-3);margin:0;}
  .side-note + .side-note{margin-top:10px;}
  .side-thumb{border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);margin-bottom:14px;}
  .side-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease;}
  .side-thumb:hover img{transform:scale(1.03);}

  /* ---------- Related ---------- */
  .related{padding:44px 0 8px;border-top:1px solid var(--line);margin-top:44px;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
  .section-title{font-size:22px;font-weight:700;color:var(--ink);line-height:1.35;}
  @media (min-width:768px){.section-title{font-size:26px;}}
  .section-sub{font-size:14px;color:var(--ink-3);margin-top:6px;}
  .text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);}
  .text-link .arrow{transition:transform .18s ease;}
  .text-link:hover{color:var(--brand);}
  .text-link:hover .arrow{transform:translateX(3px);}

  .related-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:768px){.related-grid{grid-template-columns:repeat(3,1fr);}}
  .related-card{
    display:flex;flex-direction:column;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(226,75,38,.35);}
  .related-card .thumb{overflow:hidden;background:#F1EDE4;}
  .related-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease;}
  .related-card:hover .thumb img{transform:scale(1.03);}
  .related-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .related-card h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);}
  .related-card:hover h3{color:var(--brand);}
  .related-card p{font-size:14px;line-height:1.75;color:var(--ink-3);}
  .related-card .meta{font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;margin-top:auto;}

  .back-row{display:flex;justify-content:center;padding:44px 0 8px;}

  /* ---------- CTA ---------- */
  .cta-section{padding:44px 0 64px;}
  .cta-box{
    background:var(--brand);border-radius:20px;
    padding:34px 24px;color:#fff;
    display:flex;flex-direction:column;gap:20px;
  }
  @media (min-width:768px){
    .cta-box{padding:44px 48px;flex-direction:row;align-items:center;justify-content:space-between;gap:32px;}
  }
  .cta-box h2{font-size:22px;line-height:1.35;font-weight:700;color:#fff;}
  @media (min-width:768px){.cta-box h2{font-size:28px;}}
  .cta-box p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);margin-top:8px;max-width:560px;}
  .btn-white{background:#fff;color:var(--brand);}
  .btn-white:hover{background:#FFF1EC;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(0,0,0,.5);}
  .btn-white:active{transform:translateY(0);}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
  .btn-outline-light:hover{background:#fff;color:var(--brand);border-color:#fff;}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:52px 0 0;border-top:1px solid rgba(255,255,255,.12);}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .logo-text{color:#FAF7F1;font-size:17px;font-weight:800;}
  .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:340px;}
  .footer-kw{font-size:12.5px;color:rgba(255,255,255,.45);margin-top:12px;}
  .footer-title{font-size:14px;font-weight:600;color:#FAF7F1;margin-bottom:14px;}
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease;}
  .footer-links a:hover{color:var(--brand);}
  .footer-contact li{font-size:14px;color:rgba(255,255,255,.72);font-variant-numeric:tabular-nums;}
  .footer-bottom{
    margin-top:36px;padding:18px 0 22px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-direction:column;gap:8px;
    font-size:12px;color:rgba(255,255,255,.5);
  }
  @media (min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between;align-items:center;}}

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category1 */
:root{
    --brand:#E24B26;
    --brand-deep:#B5321A;
    --accent:#17A88C;
    --highlight:#FFD166;
    --ink:#16181D;
    --ink-2:#3D444F;
    --ink-3:#6B7280;
    --paper:#FAF7F1;
    --card:#FFFFFF;
    --line:#E4E0D8;
    --tint:#FDECE6;
    --r-card:14px;
    --r-img:12px;
    --r-btn:10px;
    --sh-1:0 1px 2px rgba(22,24,29,.06), 0 8px 24px -12px rgba(22,24,29,.18);
    --sh-2:0 12px 32px -14px rgba(22,24,29,.26);
  }

  *{box-sizing:border-box;}

  .site{
    margin:0;
    background:var(--paper);
    color:var(--ink-2);
    font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.8;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }

  .site img{max-width:100%;display:block;}
  .site a{text-decoration:none;color:inherit;}
  .site ul,.site ol{margin:0;padding:0;list-style:none;}

  .wrap{
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:768px){ .wrap{padding:0 24px;} }
  @media (min-width:1280px){ .wrap{padding:0 32px;} }

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(250,247,241,.94);
    border-bottom:1px solid var(--line);
    backdrop-filter:saturate(150%) blur(8px);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{ box-shadow:var(--sh-1); }

  .header-inner{
    display:flex;
    align-items:center;
    gap:12px;
    height:60px;
  }
  @media (min-width:1024px){ .header-inner{height:68px;gap:16px;} }

  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex:0 0 auto;
  }
  .logo-mark{
    width:32px;height:32px;
    border-radius:8px;
    background:var(--brand);
    display:inline-flex;align-items:center;justify-content:center;
    flex:0 0 auto;
  }
  .logo-mark svg{width:19px;height:19px;display:block;}
  .logo-text{
    font-size:16px;
    font-weight:800;
    color:var(--ink);
    white-space:nowrap;
    letter-spacing:0;
  }
  @media (min-width:768px){ .logo-text{font-size:18px;} }

  .nav-tabs{
    display:none;
    flex:1;
    align-items:center;
    justify-content:center;
    gap:4px;
  }
  @media (min-width:1024px){ .nav-tabs{display:flex;} }

  .chip{
    display:inline-flex;
    align-items:center;
    height:34px;
    padding:0 14px;
    border-radius:999px;
    font-size:14px;
    font-weight:500;
    color:var(--ink-2);
    white-space:nowrap;
    transition:background .18s ease,color .18s ease;
  }
  .chip:hover{ background:#F1EDE4; color:var(--ink); }
  .chip.active{
    background:var(--brand);
    color:#FFFFFF;
    font-weight:600;
  }
  .chip.active:hover{ background:var(--brand-deep); color:#FFFFFF; }
  .chip:focus-visible{
    outline:2px solid var(--accent);
    outline-offset:2px;
  }

  .header-actions{
    display:flex;
    align-items:center;
    gap:10px;
    margin-left:auto;
    flex:0 0 auto;
  }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    font-family:inherit;
    font-size:15px;
    font-weight:600;
    line-height:1.4;
    padding:12px 24px;
    border-radius:var(--r-btn);
    border:1.5px solid transparent;
    cursor:pointer;
    transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
    text-align:center;
  }
  .btn-primary{
    background:var(--brand);
    border-color:var(--brand);
    color:#FFFFFF;
  }
  .btn-primary:hover{
    background:var(--brand-deep);
    border-color:var(--brand-deep);
    transform:translateY(-1px);
    box-shadow:0 12px 24px -14px rgba(226,75,38,.85);
  }
  .btn-primary:active{ transform:translateY(0); box-shadow:none; }

  .btn-ghost{
    background:transparent;
    border-color:var(--ink);
    color:var(--ink);
  }
  .btn-ghost:hover{ background:var(--ink); color:var(--paper); }

  .btn-cream{
    background:#FFFFFF;
    border-color:#FFFFFF;
    color:var(--brand-deep);
  }
  .btn-cream:hover{
    background:#FFF3EE;
    border-color:#FFF3EE;
    transform:translateY(-1px);
    box-shadow:0 12px 26px -16px rgba(0,0,0,.5);
  }

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

  .btn:focus-visible{
    outline:2px solid var(--accent);
    outline-offset:2px;
  }

  .nav-toggle{
    display:inline-flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
    width:40px;height:40px;
    border:1px solid var(--line);
    border-radius:10px;
    background:#FFFFFF;
    cursor:pointer;
    transition:border-color .18s ease;
  }
  .nav-toggle:hover{ border-color:rgba(226,75,38,.4); }
  .nav-toggle span{
    display:block;
    width:18px;height:2px;
    border-radius:2px;
    background:var(--ink);
    transition:transform .2s 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); }
  @media (min-width:1024px){ .nav-toggle{display:none;} }

  .header-cta{ display:none; }
  @media (min-width:640px){ .header-cta{ display:inline-flex; } }

  /* ---------- Mobile drawer ---------- */
  .drawer-mask{
    position:fixed;
    inset:0;
    background:rgba(22,24,29,.45);
    z-index:70;
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease;
  }
  .drawer-mask.show{ opacity:1; pointer-events:auto; }

  .drawer{
    position:fixed;
    top:0;right:0;
    height:100%;
    width:82vw;
    max-width:340px;
    background:var(--paper);
    z-index:80;
    transform:translateX(102%);
    transition:transform .2s ease;
    display:flex;
    flex-direction:column;
    padding:20px;
    border-left:1px solid var(--line);
  }
  .drawer.open{ transform:translateX(0); }
  .drawer-head{
    display:flex;
    align-items:center;
    gap:10px;
    padding-bottom:16px;
    border-bottom:1px solid var(--line);
    margin-bottom:16px;
  }
  .drawer-nav{ display:flex; flex-direction:column; gap:4px; }
  .drawer-link{
    display:block;
    padding:12px 14px;
    border-radius:10px;
    font-size:15px;
    font-weight:500;
    color:var(--ink-2);
    transition:background .18s ease,color .18s ease;
  }
  .drawer-link:hover{ background:#F1EDE4; color:var(--ink); }
  .drawer-link.active{ background:var(--brand); color:#FFFFFF; font-weight:600; }
  .drawer-cta{ margin-top:auto; width:100%; }
  @media (min-width:1024px){ .drawer,.drawer-mask{ display:none; } }

  /* ---------- Page head ---------- */
  .pagehead{
    padding:44px 0 36px;
    border-bottom:1px solid var(--line);
  }
  @media (min-width:1024px){ .pagehead{padding:64px 0 48px;} }

  .crumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--ink-3);
    margin-bottom:18px;
  }
  .crumb a{ color:var(--ink-3); }
  .crumb a:hover{ color:var(--brand); }
  .crumb-sep{ color:#B9B3A7; }
  .crumb-current{ color:var(--ink-3); }

  .pagehead-title{
    font-size:26px;
    line-height:1.3;
    font-weight:700;
    color:var(--ink);
    margin:0 0 14px;
    letter-spacing:0;
  }
  @media (min-width:768px){ .pagehead-title{font-size:32px;} }
  @media (min-width:1024px){ .pagehead-title{font-size:36px;line-height:1.25;} }

  .pagehead-sub{
    font-size:16px;
    line-height:1.85;
    color:var(--ink-2);
    margin:0 0 22px;
    max-width:720px;
  }

  .tag-row{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
  }
  .tag{
    display:inline-flex;
    align-items:center;
    height:30px;
    padding:0 13px;
    border-radius:999px;
    background:var(--tint);
    color:var(--brand-deep);
    font-size:13px;
    font-weight:500;
  }
  .tag.badge-accent{
    background:#E6F6F2;
    color:#0F6F5C;
  }

  /* ---------- Sections ---------- */
  .section{ padding:48px 0; }
  @media (min-width:768px){ .section{padding:64px 0;} }
  @media (min-width:1024px){ .section{padding:88px 0;} }

  .section-alt{
    background:var(--card);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }

  .section-title{
    position:relative;
    padding-left:16px;
    font-size:22px;
    line-height:1.4;
    font-weight:700;
    color:var(--ink);
    margin:0 0 12px;
    letter-spacing:0;
  }
  .section-title::before{
    content:"";
    position:absolute;
    left:0;top:5px;bottom:5px;
    width:4px;
    border-radius:2px;
    background:var(--brand);
  }
  @media (min-width:768px){ .section-title{font-size:28px;line-height:1.35;} }

  .section-sub{
    font-size:15px;
    line-height:1.85;
    color:var(--ink-2);
    margin:0 0 32px;
    max-width:680px;
  }
  @media (min-width:768px){ .section-sub{font-size:16px;} }

  /* ---------- Flow layout ---------- */
  .flow-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:36px;
  }
  @media (min-width:1024px){
    .flow-grid{ grid-template-columns:minmax(0,2fr) minmax(0,1fr); gap:48px; align-items:start; }
  }

  .flow-list{ display:flex; flex-direction:column; }

  .step{
    position:relative;
    display:grid;
    grid-template-columns:56px minmax(0,1fr);
    gap:16px;
    padding-bottom:34px;
  }
  .step:last-child{ padding-bottom:0; }
  .step::before{
    content:"";
    position:absolute;
    left:27px;
    top:54px;
    bottom:0;
    border-left:2px dashed var(--line);
  }
  .step:last-child::before{ display:none; }

  .step-num{
    font-size:38px;
    font-weight:800;
    line-height:1;
    color:var(--brand);
    font-variant-numeric:tabular-nums;
    padding-top:2px;
  }
  @media (min-width:768px){ .step-num{font-size:44px;} }

  .step-title{
    font-size:18px;
    font-weight:600;
    color:var(--ink);
    margin:0 0 8px;
    line-height:1.5;
  }
  @media (min-width:768px){ .step-title{font-size:20px;} }

  .step-text{
    font-size:15px;
    line-height:1.85;
    color:var(--ink-2);
    margin:0;
  }

  /* ---------- Index card ---------- */
  .index-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:22px;
    box-shadow:var(--sh-1);
  }
  @media (min-width:1024px){
    .index-card{ position:sticky; top:88px; }
  }
  .index-title{
    font-size:14px;
    font-weight:700;
    color:var(--ink);
    letter-spacing:.02em;
    margin:0 0 14px;
  }
  .index-link{
    display:flex;
    align-items:center;
    gap:10px;
    padding:11px 0;
    border-bottom:1px dashed var(--line);
    font-size:14px;
    color:var(--ink-2);
    transition:color .18s ease,padding-left .18s ease;
  }
  .index-link:last-of-type{ border-bottom:none; }
  .index-link:hover{ color:var(--brand); padding-left:3px; }
  .index-link:focus-visible{ outline:2px solid var(--accent); outline-offset:2px; border-radius:6px; }
  .index-num{
    font-size:12px;
    font-weight:700;
    color:var(--accent);
    font-variant-numeric:tabular-nums;
    flex:0 0 auto;
  }
  .index-note{
    margin:16px 0 0;
    padding-top:14px;
    border-top:1px solid var(--line);
    font-size:12px;
    line-height:1.7;
    color:var(--ink-3);
  }

  /* ---------- Checklist ---------- */
  .check-list{ max-width:860px; }
  .check-item{
    display:flex;
    align-items:flex-start;
    gap:16px;
    padding:18px 0;
    border-bottom:1px solid var(--line);
  }
  .check-item:first-child{ border-top:1px solid var(--line); }
  .check-dot{
    flex:0 0 auto;
    width:26px;height:26px;
    margin-top:3px;
    border-radius:999px;
    background:var(--tint);
    color:var(--brand);
    font-size:13px;
    font-weight:700;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-variant-numeric:tabular-nums;
  }
  .check-body{ min-width:0; }
  .check-title{
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    margin:0 0 4px;
    line-height:1.6;
  }
  .check-text{
    font-size:15px;
    line-height:1.8;
    color:var(--ink-2);
    margin:0;
  }

  /* ---------- Split image block ---------- */
  .split{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    align-items:center;
  }
  @media (min-width:768px){
    .split{ grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:40px; }
  }
  .split-media img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    border-radius:var(--r-img);
    border:1px solid var(--line);
  }
  .split-text p{
    font-size:16px;
    line-height:1.85;
    color:var(--ink-2);
    margin:0 0 16px;
  }
  .split-text p:last-child{ margin-bottom:0; }
  .inline-point{
    display:flex;
    gap:12px;
    padding:14px 16px;
    border-radius:12px;
    background:var(--tint);
    font-size:15px;
    line-height:1.75;
    color:var(--ink-2);
    margin-bottom:12px;
  }
  .inline-point:last-child{ margin-bottom:0; }
  .inline-point strong{ color:var(--brand-deep); font-weight:600; flex:0 0 auto; }

  /* ---------- Tip bars ---------- */
  .tip{
    background:var(--tint);
    border-left:4px solid var(--brand);
    border-radius:0 12px 12px 0;
    padding:18px 20px;
    margin-bottom:14px;
  }
  .tip:last-child{ margin-bottom:0; }
  .tip-title{
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    margin:0 0 6px;
    line-height:1.6;
  }
  .tip-text{
    font-size:15px;
    line-height:1.8;
    color:var(--ink-2);
    margin:0;
  }

  /* ---------- CTA band ---------- */
  .cta-band{
    background:var(--brand);
    border-radius:20px;
    padding:32px 24px;
    display:grid;
    grid-template-columns:1fr;
    gap:22px;
    align-items:center;
  }
  @media (min-width:768px){
    .cta-band{ padding:40px 40px; grid-template-columns:minmax(0,1fr) auto; gap:32px; }
  }
  .cta-title{
    font-size:22px;
    line-height:1.35;
    font-weight:700;
    color:#FFFFFF;
    margin:0 0 8px;
  }
  @media (min-width:768px){ .cta-title{font-size:26px;} }
  .cta-text{
    font-size:15px;
    line-height:1.8;
    color:rgba(255,255,255,.88);
    margin:0;
  }
  .cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
  }

  /* ---------- Footer ---------- */
  .site-footer{
    background:var(--ink);
    color:rgba(255,255,255,.72);
    padding:52px 0 0;
    margin-top:8px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    padding-bottom:36px;
  }
  @media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px;} }

  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:14px;
  }
  .footer-brand .logo-mark{ background:var(--brand); }
  .footer-brand .logo-text{ color:#FFFFFF; font-size:17px; }
  .footer-desc{
    font-size:14px;
    line-height:1.8;
    color:rgba(255,255,255,.66);
    margin:0 0 12px;
    max-width:340px;
  }
  .footer-kw{
    font-size:12px;
    line-height:1.7;
    color:rgba(255,255,255,.45);
    margin:0;
  }
  .footer-title{
    font-size:14px;
    font-weight:600;
    color:#FAF7F1;
    margin-bottom:14px;
    letter-spacing:.02em;
  }
  .footer-links{ display:flex; flex-direction:column; gap:10px; }
  .footer-links a{
    font-size:14px;
    color:rgba(255,255,255,.72);
    transition:color .18s ease;
  }
  .footer-links a:hover{ color:var(--brand); }
  .footer-links a:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:4px; }
  .footer-contact li{
    font-size:14px;
    color:rgba(255,255,255,.66);
    line-height:1.7;
  }
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    padding:18px 0 22px;
    display:flex;
    flex-wrap:wrap;
    gap:10px 24px;
    justify-content:space-between;
    font-size:12px;
    color:rgba(255,255,255,.5);
  }

  /* utility */
  .mt-6{ margin-top:24px; }
  .mt-8{ margin-top:32px; }
  .no-scroll{ overflow:hidden; }

/* roulang page: category2 */
:root{
    --brand:#E24B26;
    --brand-deep:#B5321A;
    --accent:#17A88C;
    --accent-soft:#E6F6F2;
    --highlight:#FFD166;
    --ink:#16181D;
    --ink-2:#3D444F;
    --ink-3:#6B7280;
    --paper:#FAF7F1;
    --card:#FFFFFF;
    --line:#E4E0D8;
    --tint:#FDECE6;
    --radius:14px;
    --radius-sm:10px;
    --shadow-1:0 1px 2px rgba(22,24,29,.06),0 8px 24px -12px rgba(22,24,29,.18);
    --shadow-2:0 12px 32px -14px rgba(22,24,29,.26);
    --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.8;
    color:var(--ink-2);
    background:var(--paper);
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  img{max-width:100%;display:block;border-radius:12px}
  a{color:inherit;text-decoration:none;transition:color .18s ease}
  button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px}
  .wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media(min-width:768px){.wrap{padding-left:24px;padding-right:24px}}
  @media(min-width:1280px){.wrap{padding-left:32px;padding-right:32px}}

  /* ============ 头部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(250,247,241,.92);
    backdrop-filter:saturate(140%) blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--shadow-1)}
  .header-inner{
    display:flex;align-items:center;gap:18px;
    height:60px;
  }
  @media(min-width:1024px){.header-inner{height:68px}}
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:32px;height:32px;border-radius:8px;
    background:var(--brand);
    display:inline-flex;align-items:center;justify-content:center;
    flex:0 0 auto;
    box-shadow:0 6px 14px -8px rgba(226,75,38,.9);
  }
  .logo-mark svg{width:19px;height:19px}
  .logo-text{
    font-size:18px;font-weight:800;color:var(--ink);
    white-space:nowrap;letter-spacing:0;
  }
  @media(max-width:520px){.logo-text{font-size:16px}}
  .nav-tabs{display:none;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
  .chip{
    display:inline-flex;align-items:center;
    height:34px;padding:0 14px;border-radius:999px;
    font-size:14px;font-weight:500;color:var(--ink-2);
    transition:background .18s ease,color .18s ease;
    white-space:nowrap;
  }
  .chip:hover{background:#F1EDE4;color:var(--ink)}
  .chip.active{background:var(--brand);color:#fff;font-weight:600}
  .chip.active:hover{background:var(--brand-deep);color:#fff}
  .header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:600;line-height:1;
    padding:12px 24px;border-radius:var(--radius-sm);
    transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -12px rgba(226,75,38,.9)}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(181,50,26,.75)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{border:1.5px solid var(--ink);color:var(--ink);background:transparent}
  .btn-ghost:hover{background:var(--ink);color:var(--paper)}
  .btn-sm{padding:10px 18px;font-size:14px}
  .header-cta{display:none}
  @media(min-width:1024px){.header-cta{display:inline-flex}}
  .nav-toggle{
    display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
    width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
    background:var(--card);align-items:center;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
  @media(min-width:1024px){.nav-toggle{display:none}}
  .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)}

  .drawer-mask{
    position:fixed;inset:0;background:rgba(22,24,29,.45);
    opacity:0;pointer-events:none;transition:opacity .2s ease;z-index:80;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;
    background:var(--paper);z-index:90;
    transform:translateX(100%);transition:transform .24s ease;
    display:flex;flex-direction:column;padding:20px;
    box-shadow:var(--shadow-2);
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
  .drawer-title{font-size:15px;font-weight:700;color:var(--ink)}
  .drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:var(--card);font-size:18px;line-height:1;color:var(--ink-2)}
  .drawer-nav{display:flex;flex-direction:column;gap:6px}
  .drawer-nav a{
    display:block;padding:12px 14px;border-radius:10px;
    font-size:15px;font-weight:500;color:var(--ink-2);
    border:1px solid transparent;
  }
  .drawer-nav a:hover{background:#F1EDE4}
  .drawer-nav a.active{background:var(--brand);color:#fff;font-weight:600}
  .drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
  .drawer-foot .btn{width:100%}
  @media(min-width:1024px){
    .nav-tabs{display:flex}
    .drawer,.drawer-mask{display:none}
  }

  /* ============ 页头 ============ */
  .page-head{padding:44px 0 0;position:relative}
  @media(min-width:768px){.page-head{padding:64px 0 0}}
  @media(min-width:1024px){.page-head{padding:76px 0 0}}
  .crumb{font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:18px}
  .crumb a{color:var(--ink-3)}
  .crumb a:hover{color:var(--brand)}
  .crumb .sep{color:#C9C3B8}
  .crumb .cur{color:var(--ink-3)}
  .head-grid{display:grid;gap:28px;grid-template-columns:1fr;align-items:center}
  @media(min-width:1024px){.head-grid{grid-template-columns:7fr 5fr;gap:48px}}
  .head-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:600;letter-spacing:.02em;
    color:var(--accent);background:var(--accent-soft);
    padding:6px 12px;border-radius:999px;margin-bottom:16px;
  }
  .head-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
  h1{
    font-size:26px;line-height:1.32;font-weight:700;color:var(--ink);
    letter-spacing:0;
  }
  @media(min-width:768px){h1{font-size:32px}}
  @media(min-width:1024px){h1{font-size:36px;line-height:1.28}}
  .head-sub{margin-top:16px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:640px}
  @media(min-width:768px){.head-sub{font-size:17px}}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
  .tag{
    font-size:13px;font-weight:500;color:var(--ink-2);
    background:var(--card);border:1px solid var(--line);
    padding:6px 13px;border-radius:999px;
  }
  .head-figure{position:relative}
  .head-figure img{
    width:100%;aspect-ratio:16/10;object-fit:cover;
    border:1px solid var(--line);border-radius:12px;
    box-shadow:var(--shadow-1);
  }
  .head-badge{
    position:absolute;right:14px;bottom:14px;
    background:#fff;border:1px solid var(--line);border-radius:12px;
    padding:10px 14px;box-shadow:var(--shadow-1);
  }
  .head-badge .h-title{font-size:12px;color:var(--ink-3);line-height:1.5}
  .head-badge .h-num{font-size:17px;font-weight:800;color:var(--ink);line-height:1.4;font-variant-numeric:tabular-nums}
  .head-rule{margin-top:36px;height:1px;background:var(--line)}

  /* ============ 数字横条 ============ */
  .stat-strip{
    background:var(--tint);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:26px 0;
    margin-top:0;
  }
  .stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 16px}
  @media(min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
  .stat-item{display:flex;flex-direction:column;gap:2px}
  .stat-num{
    font-size:28px;font-weight:800;color:var(--brand);line-height:1.2;
    font-variant-numeric:tabular-nums;
  }
  @media(min-width:768px){.stat-num{font-size:34px}}
  .stat-label{font-size:13px;color:var(--ink-2);line-height:1.6}

  /* ============ 通用板块 ============ */
  .section{padding:48px 0}
  @media(min-width:768px){.section{padding:64px 0}}
  @media(min-width:1024px){.section{padding:88px 0}}
  .section-alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{max-width:720px;margin-bottom:32px}
  .section-head h2{
    font-size:22px;line-height:1.4;font-weight:700;color:var(--ink);
    padding-left:12px;border-left:4px solid var(--brand);
  }
  @media(min-width:768px){.section-head h2{font-size:26px}}
  .section-head p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-2)}

  /* ============ 交错图文 ============ */
  .zig-list{display:flex;flex-direction:column;gap:32px}
  @media(min-width:768px){.zig-list{gap:40px}}
  .zig-item{
    display:grid;grid-template-columns:1fr;gap:18px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    padding:18px;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  }
  @media(min-width:768px){
    .zig-item{grid-template-columns:1fr 1fr;gap:32px;padding:22px;align-items:center}
    .zig-item:nth-child(even) .zig-media{order:2}
  }
  .zig-item:hover{border-color:rgba(226,75,38,.35);box-shadow:var(--shadow-1);transform:translateY(-2px)}
  .zig-media{overflow:hidden;border-radius:12px}
  .zig-media img{
    width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;
    transition:transform .35s ease;
  }
  .zig-item:hover .zig-media img{transform:scale(1.03)}
  .zig-body{padding:2px}
  .zig-step{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:700;color:var(--brand);
    font-variant-numeric:tabular-nums;letter-spacing:.02em;
    background:var(--tint);padding:4px 11px;border-radius:999px;margin-bottom:12px;
  }
  .zig-body h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink)}
  @media(min-width:768px){.zig-body h3{font-size:20px}}
  .zig-body p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-2)}
  .text-link{
    display:inline-flex;align-items:center;gap:6px;margin-top:14px;
    font-size:14px;font-weight:600;color:var(--ink);
  }
  .text-link svg{width:15px;height:15px;transition:transform .18s ease}
  .text-link:hover{color:var(--brand)}
  .text-link:hover svg{transform:translateX(2px)}

  /* ============ 双列对照 ============ */
  .compare-grid{display:grid;grid-template-columns:1fr;gap:20px}
  @media(min-width:768px){.compare-grid{grid-template-columns:1fr 1fr;gap:24px}}
  .compare-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .compare-card:hover{border-color:rgba(23,168,140,.4);box-shadow:var(--shadow-1)}
  .compare-card h3{
    font-size:18px;font-weight:600;color:var(--ink);
    display:flex;align-items:center;gap:10px;
  }
  .compare-card h3 .dot{
    width:26px;height:26px;border-radius:8px;background:var(--accent-soft);
    display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  }
  .compare-card h3 .dot svg{width:15px;height:15px;stroke:var(--accent)}
  .compare-card .c-lead{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-3)}
  .compare-list{margin-top:16px;display:flex;flex-direction:column;gap:12px}
  .compare-list li{
    display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:var(--ink-2);
    padding-bottom:12px;border-bottom:1px dashed var(--line);
  }
  .compare-list li:last-child{border-bottom:0;padding-bottom:0}
  .compare-list li b{color:var(--ink);font-weight:600;flex:0 0 auto}
  .compare-list li span{color:var(--ink-2)}

  /* ============ 检查清单 ============ */
  .check-wrap{
    display:grid;grid-template-columns:1fr;gap:24px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    padding:26px;
  }
  @media(min-width:1024px){.check-wrap{grid-template-columns:4fr 8fr;gap:40px;padding:34px}}
  .check-intro h2{
    font-size:22px;line-height:1.4;font-weight:700;color:var(--ink);
    padding-left:12px;border-left:4px solid var(--brand);
  }
  .check-intro p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-2)}
  .check-list{display:grid;grid-template-columns:1fr;gap:14px}
  @media(min-width:768px){.check-list{grid-template-columns:1fr 1fr}}
  .check-list li{
    display:flex;gap:12px;align-items:flex-start;
    background:var(--paper);border:1px solid var(--line);border-radius:12px;
    padding:14px 16px;
    transition:border-color .2s ease,background .2s ease;
  }
  .check-list li:hover{border-color:rgba(226,75,38,.35);background:var(--tint)}
  .check-list .tick{
    width:20px;height:20px;border-radius:50%;background:var(--accent-soft);
    display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;margin-top:3px;
  }
  .check-list .tick svg{width:11px;height:11px;stroke:var(--accent);stroke-width:2.6;fill:none}
  .check-list .ck-t{font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.6}
  .check-list .ck-d{font-size:13.5px;color:var(--ink-3);line-height:1.7;margin-top:2px}

  /* ============ FAQ ============ */
  .faq-wrap{display:grid;grid-template-columns:1fr;gap:28px}
  @media(min-width:1024px){.faq-wrap{grid-template-columns:4fr 8fr;gap:48px}}
  .faq-side h2{
    font-size:22px;line-height:1.4;font-weight:700;color:var(--ink);
    padding-left:12px;border-left:4px solid var(--brand);
  }
  @media(min-width:768px){.faq-side h2{font-size:26px}}
  .faq-side p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-2)}
  @media(min-width:1024px){.faq-side{position:sticky;top:88px;align-self:start}}
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 0;text-align:left;
    font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
    transition:color .18s ease;
  }
  .faq-q:hover{color:var(--brand)}
  .faq-item.open .faq-q{color:var(--brand)}
  .faq-arrow{width:20px;height:20px;flex:0 0 auto;transition:transform .2s ease;stroke:currentColor;fill:none;stroke-width:2}
  .faq-item.open .faq-arrow{transform:rotate(180deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
  .faq-item.open .faq-a{max-height:420px}
  .faq-a p{padding-bottom:20px;font-size:15px;line-height:1.85;color:var(--ink-2)}

  /* ============ CTA ============ */
  .cta-band{padding:40px 0}
  @media(min-width:768px){.cta-band{padding:56px 0}}
  .cta-inner{
    background:var(--brand);border-radius:20px;
    padding:28px 24px;
    display:grid;grid-template-columns:1fr;gap:20px;align-items:center;
  }
  @media(min-width:768px){.cta-inner{padding:32px 40px;grid-template-columns:1fr auto;gap:32px}}
  .cta-inner h2{font-size:20px;line-height:1.45;font-weight:700;color:#fff}
  @media(min-width:768px){.cta-inner h2{font-size:24px}}
  .cta-inner p{margin-top:8px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.86);max-width:620px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
  .btn-light{background:#fff;color:var(--brand);box-shadow:0 10px 22px -14px rgba(22,24,29,.8)}
  .btn-light:hover{background:#FDECE6;color:var(--brand-deep);transform:translateY(-1px)}
  .btn-outline-light{border:1.5px solid rgba(255,255,255,.72);color:#fff}
  .btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:48px 0 24px;margin-top:12px}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .footer-brand .logo-text{color:#fff;font-size:17px}
  .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68)}
  .footer-kw{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.5);line-height:1.7}
  .footer-title{font-size:14px;font-weight:600;color:#FAF7F1;margin-bottom:14px}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
  .footer-links a:hover{color:var(--brand)}
  .footer-contact li{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
  .footer-bottom{
    margin-top:36px;padding-top:18px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:12px;color:rgba(255,255,255,.52);
  }

  @media(prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
  }

/* roulang page: category3 */
:root{
  --brand:#E24B26;
  --brand-deep:#B5321A;
  --accent:#17A88C;
  --accent-soft:#E6F6F2;
  --highlight:#FFD166;
  --ink:#16181D;
  --ink-2:#3D444F;
  --ink-3:#6B7280;
  --paper:#FAF7F1;
  --card:#FFFFFF;
  --line:#E4E0D8;
  --tint:#FDECE6;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(22,24,29,.06),0 8px 24px -12px rgba(22,24,29,.18);
  --shadow-2:0 12px 32px -14px rgba(22,24,29,.26);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--paper);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{color:var(--ink);letter-spacing:0;font-weight:700}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 24px}}
@media (min-width:1280px){.wrap{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,241,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(1.4) blur(6px);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:16px;height:60px}
@media (min-width:1024px){.header-inner{height:68px;gap:24px}}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;border-radius:8px;background:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:16px;font-weight:800;color:var(--ink);white-space:nowrap}
@media (min-width:768px){.logo-text{font-size:18px}}
.nav-tabs{display:none}
@media (min-width:1024px){
  .nav-tabs{display:flex;align-items:center;gap:4px;margin:0 auto}
}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;
  font-size:13.5px;color:var(--ink-2);transition:background .18s ease,color .18s ease;
  white-space:nowrap;
}
.chip:hover{background:#F1EDE4;color:var(--ink)}
.chip.active{background:var(--brand);color:#fff}
.chip.active:hover{background:var(--brand-deep);color:#fff}
.header-cta{display:none}
@media (min-width:1024px){.header-cta{display:inline-flex;flex:0 0 auto}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:12px 24px;border-radius:var(--radius-btn);
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px -10px rgba(226,75,38,.9)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(226,75,38,.95)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- page head ---------- */
.page-head{border-bottom:1px solid var(--line);background:var(--paper)}
.page-head-inner{padding:36px 0 32px}
@media (min-width:768px){.page-head-inner{padding:52px 0 40px}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line)}
.crumb .now{color:var(--ink-3)}
.page-head h1{font-size:26px;line-height:1.3;max-width:820px}
@media (min-width:768px){.page-head h1{font-size:34px}}
@media (min-width:1024px){.page-head h1{font-size:36px}}
.page-sub{margin-top:14px;max-width:720px;font-size:16px;color:var(--ink-2)}
@media (min-width:768px){.page-sub{font-size:17px}}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2)}
.tag.is-accent{background:var(--accent-soft);border-color:transparent;color:#0E7A65;font-weight:500}

/* ---------- sections ---------- */
.section{padding:48px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:88px 0}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:28px}
.sec-head h2{font-size:22px;line-height:1.35}
@media (min-width:768px){.sec-head h2{font-size:28px}}
.sec-head p{margin-top:12px;font-size:15.5px;color:var(--ink-2)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--brand);
  letter-spacing:.02em;margin-bottom:10px}
.eyebrow::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--brand)}

/* ---------- table ---------- */
.table-scroll{width:100%;overflow-x:auto}
.qa-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;font-size:14.5px}
.qa-table thead th{
  background:#F4F1EA;color:var(--ink);font-weight:600;font-size:13.5px;text-align:left;
  padding:14px 16px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.qa-table tbody td{padding:16px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top}
.qa-table tbody tr:last-child td{border-bottom:0}
.qa-table tbody tr{transition:background .18s ease}
.qa-table tbody tr:hover{background:var(--tint)}
.qa-table .cell-strong{color:var(--ink);font-weight:600}
.qa-table .cell-time{font-variant-numeric:tabular-nums;color:var(--ink-3);white-space:nowrap}
.table-note{margin-top:14px;font-size:12.5px;color:var(--ink-3)}

@media (max-width:767px){
  .table-scroll{overflow-x:visible}
  .qa-table{border:0;background:transparent;border-radius:0}
  .qa-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
  .qa-table,.qa-table tbody,.qa-table tr,.qa-table td{display:block;width:100%}
  .qa-table tbody tr{
    background:#fff;border-radius:12px;padding:8px 16px;margin-bottom:12px;
    box-shadow:var(--shadow-1);
  }
  .qa-table tbody tr:hover{background:#fff}
  .qa-table tbody td{border-bottom:1px dashed var(--line);padding:10px 0;display:flex;gap:12px;align-items:flex-start}
  .qa-table tbody td:last-child{border-bottom:0}
  .qa-table tbody td::before{
    content:attr(data-label);flex:0 0 76px;font-size:12.5px;color:var(--ink-3);font-weight:500;line-height:1.7;
  }
}

/* ---------- tip cards ---------- */
.tip-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.tip-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.tip-grid{grid-template-columns:repeat(3,1fr)}}
.tip-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.tip-card:hover{border-color:rgba(226,75,38,.35);transform:translateY(-4px);box-shadow:var(--shadow-2)}
.tip-num{
  display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;
  background:var(--tint);color:var(--brand);font-weight:800;font-size:14px;font-variant-numeric:tabular-nums;
}
.tip-card h3{margin-top:14px;font-size:18px;font-weight:600;line-height:1.5}
.tip-card p{margin-top:8px;font-size:14.5px;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:20px 0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
@media (min-width:768px){.faq-q{font-size:17px;padding:22px 0}}
.faq-q:hover{color:var(--brand)}
.faq-item.open .faq-q{color:var(--brand)}
.faq-icon{flex:0 0 auto;width:20px;height:20px;color:var(--ink-3);transition:transform .2s ease,color .2s ease}
.faq-item.open .faq-icon{transform:rotate(180deg);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:820px}
.faq-a-inner p+p{margin-top:10px}

/* ---------- feature split ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:900px){.split{grid-template-columns:1.05fr 1fr;gap:48px}}
.split-media{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-body h2{font-size:22px;line-height:1.35}
@media (min-width:768px){.split-body h2{font-size:28px}}
.split-body p{margin-top:14px;font-size:15.5px;color:var(--ink-2)}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.75}
.check-list .dot{
  flex:0 0 auto;margin-top:6px;width:8px;height:8px;border-radius:50%;background:var(--accent);
}

/* ---------- cta ---------- */
.cta-band{background:var(--brand);border-radius:20px;padding:32px 24px;color:#fff;
  display:grid;gap:20px;align-items:center}
@media (min-width:900px){.cta-band{grid-template-columns:1fr auto;padding:40px 48px;gap:32px}}
.cta-band h2{color:#fff;font-size:22px;line-height:1.35}
@media (min-width:768px){.cta-band h2{font-size:26px}}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.88);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn-onbrand{background:#fff;color:var(--brand-deep);font-weight:700}
.btn-onbrand:hover{background:var(--tint);transform:translateY(-1px)}
.btn-outline-white{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn-outline-white:hover{background:rgba(255,255,255,.14);border-color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:48px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:36px;
  border-top:1px solid rgba(255,255,255,.12);padding-top:40px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:800}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:300px}
.footer-kw{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.5)}
.footer-title{font-size:14px;font-weight:600;color:var(--paper);margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a,.footer-links li{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a{transition:color .18s ease}
.footer-links a:hover{color:var(--brand)}
.footer-contact li{color:rgba(255,255,255,.62)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;
  font-size:12px;color:rgba(255,255,255,.5);
}

/* ---------- mobile drawer ---------- */
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:10px;border:1px solid var(--line);background:#fff;margin-left:auto;
}
@media (min-width:1024px){.menu-btn{display:none}}
.menu-btn span{display:block;position:relative;width:18px;height:2px;background:var(--ink);border-radius:2px}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,top .2s ease}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
body.drawer-open .menu-btn span{background:transparent}
body.drawer-open .menu-btn span::before{top:0;transform:rotate(45deg)}
body.drawer-open .menu-btn span::after{top:0;transform:rotate(-45deg)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,24,29,.45);opacity:0;pointer-events:none;
  transition:opacity .2s ease;z-index:80;
}
body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;background:var(--paper);
  z-index:90;transform:translateX(100%);transition:transform .24s ease;
  display:flex;flex-direction:column;padding:20px;box-shadow:var(--shadow-2);
}
body.drawer-open .drawer{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink)}
.drawer-nav{display:grid;gap:6px}
.drawer-nav .chip{height:44px;border-radius:10px;font-size:15px;padding:0 16px}
.drawer-foot{margin-top:auto;padding-top:20px}