/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
  --ink:#17141C;
  --ink-2:#2B2536;
  --paper:#FAF6F0;
  --card:#FFFFFF;
  --brand:#F0502A;
  --brand-600:#D23F1C;
  --brand-soft:#FDE7DF;
  --accent:#C8F45C;
  --violet:#6B4EF0;
  --muted:#6E6878;
  --line:#E7E0D6;
  --shadow:0 1px 2px rgba(23,20,28,.06),0 12px 32px -14px rgba(23,20,28,.18);
  --shadow-hover:0 2px 6px rgba(23,20,28,.08),0 22px 44px -18px rgba(23,20,28,.3);
  --r-btn:12px;
  --r-card:18px;
  --r-img:20px;
  --r-block:28px;
}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-title{font-size:32px;font-weight:800;line-height:1.25}
.section-note{font-size:14px;color:var(--muted);line-height:1.7;max-width:22em;text-align:right}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 12px;border-radius:999px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(240,80,42,.9)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-sm{height:44px;padding:0 20px;font-size:14.5px}
.btn-full{width:100%}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 10px;border-radius:999px;line-height:1.4;width:fit-content;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-600)}
.badge-violet{background:rgba(107,78,240,.1);color:var(--violet)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--paper);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{
  background:#fff;
  box-shadow:0 1px 0 var(--line),0 10px 30px -24px rgba(23,20,28,.8);
}
.nav-wrap{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:16px;
}
.nav-side{display:flex;align-items:center;gap:16px}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .2s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link.active{color:var(--ink);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;
  height:2px;border-radius:2px;background:var(--accent);
}
.brand{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  display:inline-flex;align-items:baseline;gap:5px;white-space:nowrap;
}
.brand-main{font-size:22px;font-weight:900;letter-spacing:-.02em;color:var(--ink)}
.brand-sub{font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--muted)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:4px;
  width:40px;height:40px;padding:0 10px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink)}
.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:70;
  background:#fff;padding:12px 20px 32px;display:none;
  flex-direction:column;gap:4px;overflow-y:auto;
}
.mobile-drawer.open{display:flex}
.drawer-link{
  padding:16px 4px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--ink-2);
}
.drawer-link.active{color:var(--brand);font-weight:700}
.mobile-drawer .btn{margin-top:24px}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 88px}
.hero::before{
  content:"";position:absolute;top:-260px;right:-200px;width:720px;height:720px;
  border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(240,80,42,.16),rgba(240,80,42,0) 68%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:48px;line-height:1.15;font-weight:900;letter-spacing:-.02em}
.hero-sub{margin-top:20px;font-size:20px;line-height:1.6;color:var(--ink-2);max-width:30em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:28px;font-size:13.5px;color:var(--muted)}
.hero-points li{display:flex;align-items:center;gap:9px}
.hero-points li::before{
  content:"";width:7px;height:7px;border-radius:50%;flex:none;
  background:var(--accent);box-shadow:0 0 0 3px rgba(200,244,92,.35);
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--shadow);
}
.deco-dot{
  position:absolute;top:-11px;right:-11px;width:22px;height:22px;
  border-radius:50%;background:var(--accent);border:4px solid var(--paper);
}
.deco-dots{
  position:absolute;right:14px;bottom:-16px;width:96px;height:64px;
  background-image:radial-gradient(rgba(23,20,28,.18) 2px,transparent 2px);
  background-size:16px 16px;pointer-events:none;
}

/* ---------- 三步上手 ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 28px 30px;box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(240,80,42,.3);box-shadow:var(--shadow-hover)}
.step-num{
  display:block;font-size:56px;font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px #DCD2C4;
  letter-spacing:-.02em;margin-bottom:18px;
}
.step-card h3{font-size:20px;margin-bottom:10px}
.step-card p{font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- 栏目速览 ---------- */
.topics-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.topic-item{
  display:flex;align-items:center;gap:20px;
  padding:22px 26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.topic-item:hover{transform:translateY(-3px);border-color:rgba(107,78,240,.35);box-shadow:var(--shadow-hover)}
.topic-idx{
  flex:none;display:grid;place-items:center;width:44px;height:44px;border-radius:12px;
  font-size:14px;font-weight:800;color:var(--violet);
  background:rgba(107,78,240,.08);border:1px solid rgba(107,78,240,.22);
}
.topic-item h3{font-size:17px;margin-bottom:2px}
.topic-item p{font-size:14px;line-height:1.7;color:var(--muted)}
.topic-arrow{
  margin-left:auto;flex:none;font-size:18px;color:var(--muted);
  transition:transform .2s ease,color .2s ease;
}
.topic-item:hover .topic-arrow{transform:translateX(4px);color:var(--brand)}

/* ---------- 案例 ---------- */
.cases-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.case-main{
  display:grid;grid-template-columns:2fr 3fr;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.case-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(240,80,42,.28)}
.case-media{min-height:280px;background:var(--paper)}
.case-media img{width:100%;height:100%;object-fit:cover}
.case-body{padding:32px;display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.case-body h3{font-size:20px;line-height:1.45}
.case-body p{font-size:15px;line-height:1.8;color:var(--muted)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;margin-top:auto;
  font-size:14px;font-weight:700;color:var(--brand);
  transition:gap .2s ease;
}
.case-main:hover .link-arrow{gap:12px}
.case-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.quote-card{
  margin:0;padding:26px;background:#fff;border:1px solid var(--line);
  border-left:4px solid var(--accent);border-radius:var(--r-card);
  box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center;
}
.quote-card p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.quote-card footer{margin-top:14px;font-size:13px;color:var(--muted)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(240,80,42,.28)}
.news-media{aspect-ratio:16/9;overflow:hidden;background:var(--paper)}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-media img{transform:scale(1.04)}
.news-body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{
  font-size:16px;line-height:1.55;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-excerpt{
  font-size:14px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--muted);
}
.news-foot .arrow-link{font-weight:700;color:var(--brand)}
.news-card:hover .news-foot .arrow-link{text-decoration:underline;text-decoration-thickness:2px;text-decoration-color:var(--accent)}
.empty-state{
  padding:48px 32px;border:1.5px dashed var(--line);border-radius:var(--r-card);
  background:#fff;text-align:center;font-size:14px;color:var(--muted);
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-intro p{margin-top:16px;font-size:15px;line-height:1.8;color:var(--muted)}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:0 20px;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:rgba(240,80,42,.32);box-shadow:var(--shadow)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 0;text-align:left;font-size:16px;font-weight:600;line-height:1.55;
}
.faq-icon{
  flex:none;font-size:20px;line-height:1;color:var(--brand);font-weight:400;
  transition:transform .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{font-size:15px;line-height:1.8;color:var(--muted);padding-bottom:20px}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;
  background:var(--ink);color:#fff;border-radius:var(--r-block);
  padding:64px 56px;
}
.cta-block::after{
  content:"";position:absolute;left:-120px;bottom:-180px;width:440px;height:440px;
  border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(200,244,92,.16),transparent 70%);
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:32px;line-height:1.3;color:#fff}
.cta-copy p{margin-top:16px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.72);max-width:30em}
.cta-points{margin-top:26px;display:grid;gap:14px;font-size:14.5px;color:rgba(255,255,255,.86)}
.cta-points li{display:flex;align-items:center;gap:12px}
.cta-points li::before{
  content:"";flex:none;width:8px;height:8px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 0 4px rgba(200,244,92,.16);
}
.cta-form{
  position:relative;z-index:1;
  background:#fff;color:var(--ink);border-radius:var(--r-card);
  padding:32px;display:grid;gap:8px;
}
.cta-form .field-label{font-size:13px;font-weight:700;color:var(--ink-2);margin-top:12px;margin-bottom:2px}
.cta-form .field-label:first-child{margin-top:0}
.cta-form input[type=text]{
  height:48px;width:100%;padding:0 14px;border-radius:12px;
  border:1px solid var(--line);background:#fff;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input[type=text]::placeholder{color:#A9A2AE}
.cta-form input[type=text]:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 2px var(--accent);
}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 6px}
.chip{position:relative;display:inline-flex}
.chip input{position:absolute;inset:0;opacity:0;cursor:pointer}
.chip span{
  display:inline-flex;align-items:center;height:40px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);
  font-size:14px;font-weight:500;color:var(--ink-2);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.chip input:checked+span{
  background:var(--brand-soft);border-color:rgba(240,80,42,.5);
  color:var(--brand-600);font-weight:700;
}
.chip input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}
.cta-form .btn{margin-top:14px}
.form-tip{font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:10px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:72px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px}
.footer-grid h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:18px}
.footer-grid ul{display:grid;gap:12px}
.footer-grid ul a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s ease}
.footer-grid ul a:hover{color:var(--accent)}
.brand-light .brand-main{color:#fff}
.brand-light .brand-sub{color:rgba(255,255,255,.55)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:26em}
.footer-meta{display:grid;gap:12px;font-size:14px;color:rgba(255,255,255,.62);line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:flex}
  .brand-main{font-size:18px}
  .brand-sub{font-size:10px}
  .hero{padding:40px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:38px}
  .hero-media{max-width:560px}
  .section-title{font-size:26px}
  .steps-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .cases-grid{grid-template-columns:1fr}
  .case-main{grid-template-columns:1fr}
  .case-media{min-height:220px;aspect-ratio:16/9}
  .case-side{grid-template-rows:auto auto}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-block{grid-template-columns:1fr;padding:44px 32px;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-note{text-align:left;max-width:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero h1{font-size:32px}
  .hero-sub{font-size:17px}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%}
  .steps-grid{grid-template-columns:1fr;gap:18px}
  .topics-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .cta-block{padding:36px 20px;border-radius:22px}
  .cta-copy h2{font-size:24px}
  .cta-form{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .brand-main{font-size:17px}
  .brand-sub{font-size:9.5px}
  .nav-cta.btn-sm{height:38px;padding:0 14px;font-size:13px}
  .section-title{font-size:24px}
  .case-body{padding:24px}
  .footer-bottom{font-size:12px}
}
@media (max-width:400px){
  .brand-sub{display:none}
}

/* roulang page: article */
:root{
  --ink:#17141C;
  --ink-2:#2B2536;
  --paper:#FAF6F0;
  --card:#FFFFFF;
  --brand:#F0502A;
  --brand-600:#D23F1C;
  --brand-soft:#FDE7DF;
  --accent:#C8F45C;
  --violet:#6B4EF0;
  --muted:#6E6878;
  --line:#E7E0D6;
  --radius-btn:12px;
  --radius-card:18px;
  --radius-img:20px;
  --radius-block:28px;
  --shadow-card:0 1px 2px rgba(23,20,28,.06), 0 12px 32px -14px rgba(23,20,28,.18);
  --shadow-card-hover:0 2px 4px rgba(23,20,28,.08), 0 22px 44px -18px rgba(23,20,28,.3);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body.site-body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,opacity .18s ease;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;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 32px;}
.top-strip{height:8px;background:var(--brand);width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,246,240,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(23,20,28,.05),0 10px 26px -20px rgba(23,20,28,.35);
}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 32px;height:72px;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
}
.nav-left{display:flex;align-items:center;gap:30px;justify-self:start;}
.nav-right{display:flex;align-items:center;gap:30px;justify-self:end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:8px 0;letter-spacing:.01em;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;transition:right .22s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.active::after{right:0;}
.nav-link.active{color:var(--ink);font-weight:700;}
.brand{display:flex;flex-direction:column;align-items:center;line-height:1;}
.brand-main{font-size:22px;font-weight:900;color:var(--ink);letter-spacing:.02em;}
.brand-sub{font-size:11px;font-weight:600;letter-spacing:.12em;color:var(--muted);margin-top:6px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(240,80,42,.9);}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(210,63,28,.85);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-1px);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.nav-cta{height:44px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  align-items:center;justify-content:center;background:transparent;
  border:1px solid var(--line);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-bar{display:none;}
.drawer{
  position:fixed;inset:0;background:#fff;z-index:90;
  transform:translateY(-100%);transition:transform .34s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px 24px 32px;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-brand{font-size:18px;font-weight:900;}
.drawer-brand small{display:block;font-size:10px;letter-spacing:.14em;color:var(--muted);font-weight:600;margin-top:4px;}
.drawer-close{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);font-size:20px;line-height:1;color:var(--ink-2);}
.drawer-list{margin-top:8px;}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-list a.active{color:var(--brand);font-weight:700;}
.drawer-list a::after{content:"›";color:var(--muted);font-size:20px;}
.drawer .btn{width:100%;margin-top:24px;}

/* ---------- 文章头部 ---------- */
.page-main{padding:40px 0 0;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);line-height:1.7;
}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#C9C1B5;}
.crumbs .current{color:var(--ink-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:760px;margin:22px auto 0;padding:0 32px;}
.article-title{
  font-size:36px;font-weight:800;line-height:1.3;letter-spacing:-.015em;color:var(--ink);
  margin-top:14px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:13px;color:var(--muted);
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1.6;
}
.badge-violet{background:rgba(107,78,240,.1);color:var(--violet);}
.badge-brand{background:var(--brand-soft);color:var(--brand-600);}
.dot-sep{width:3px;height:3px;border-radius:50%;background:#C9C1B5;display:inline-block;}
.article-hero-line{
  max-width:760px;margin:28px auto 0;padding:0 32px;
}
.article-hero-line .rule{height:1px;background:var(--line);}

/* ---------- 正文 ---------- */
.reading{max-width:760px;margin:0 auto;padding:32px 32px 0;}
.reading .prose{font-size:16.5px;line-height:1.85;color:var(--ink-2);}
.reading .prose > *:first-child{margin-top:0;}
.reading .prose p{margin:0 0 20px;}
.reading .prose h2{
  position:relative;font-size:24px;font-weight:700;color:var(--ink);
  margin:40px 0 16px;padding-left:16px;line-height:1.4;
}
.reading .prose h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--accent);
}
.reading .prose h3{font-size:19px;font-weight:700;color:var(--ink);margin:30px 0 12px;}
.reading .prose h4{font-size:17px;font-weight:700;color:var(--ink);margin:24px 0 10px;}
.reading .prose a{color:var(--brand);border-bottom:2px solid rgba(240,80,42,.25);}
.reading .prose a:hover{border-bottom-color:var(--brand);}
.reading .prose ul,.reading .prose ol{margin:0 0 20px;padding-left:0;}
.reading .prose ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.reading .prose ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--brand);
}
.reading .prose ol{counter-reset:li;padding-left:0;}
.reading .prose ol li{position:relative;padding-left:28px;margin-bottom:10px;counter-increment:li;}
.reading .prose ol li::before{
  content:counter(li);position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:50%;background:var(--brand-soft);color:var(--brand-600);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.reading .prose blockquote{
  margin:24px 0;padding:20px 22px;background:var(--paper);
  border-left:4px solid var(--brand);border-radius:0 14px 14px 0;
  color:var(--ink-2);font-size:16px;
}
.reading .prose blockquote p:last-child{margin-bottom:0;}
.reading .prose img{width:100%;border-radius:16px;margin:8px 0 12px;}
.reading .prose figure{margin:24px 0;}
.reading .prose figcaption{font-size:13px;color:var(--muted);text-align:center;}
.reading .prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
.reading .prose th,.reading .prose td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.reading .prose th{background:var(--paper);font-weight:700;color:var(--ink);}
.reading .prose hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.reading .prose strong{color:var(--ink);font-weight:700;}

/* 空态 */
.empty-state{
  border:1.5px dashed var(--line);border-radius:var(--radius-card);
  padding:40px 24px;text-align:center;background:#fff;
}
.empty-state .es-title{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.empty-state .es-text{font-size:14px;color:var(--muted);margin-bottom:20px;}

/* ---------- 相关推荐 ---------- */
.section{padding:56px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.section-title{font-size:24px;font-weight:800;color:var(--ink);}
.section-note{font-size:14px;color:var(--muted);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.link-arrow .arw{transition:transform .2s ease;}
.link-arrow:hover{color:var(--brand);border-bottom-color:var(--accent);}
.link-arrow:hover .arw{transform:translateX(3px);}
.relate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px;}
.relate-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.relate-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(240,80,42,.3);}
.relate-thumb{aspect-ratio:16/9;background:var(--paper);overflow:hidden;}
.relate-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.relate-card:hover .relate-thumb img{transform:scale(1.04);}
.relate-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.relate-body h3{font-size:16px;font-weight:700;line-height:1.55;color:var(--ink);}
.relate-body .relate-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);padding-top:6px;
}
.back-row{display:flex;justify-content:center;margin-top:36px;}

/* ---------- 窄版 CTA ---------- */
.cta-bar{
  margin-top:56px;background:var(--brand-soft);border-radius:var(--radius-card);
  padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.cta-bar h3{font-size:20px;font-weight:800;color:var(--ink);}
.cta-bar p{font-size:14px;color:#7C5A4C;margin-top:8px;}
.cta-bar .btn{flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;margin-top:96px;}
.footer-inner{max-width:1200px;margin:0 auto;padding:64px 32px 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand-name{font-size:20px;font-weight:900;letter-spacing:.02em;color:#fff;}
.footer-brand-name small{display:block;font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.5);font-weight:600;margin-top:8px;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:280px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62);}
.footer-links a:hover{color:var(--accent);}
.footer-info li{
  font-size:14px;color:rgba(255,255,255,.62);margin-bottom:10px;
  display:flex;gap:8px;align-items:flex-start;
}
.footer-info li::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);
  margin-top:9px;flex-shrink:0;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.45);
}
.footer-bottom a{color:rgba(255,255,255,.45);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-inner{height:64px;padding:0 20px;}
  .nav-left,.nav-right .nav-link{display:none;}
  .nav-right{gap:12px;}
  .nav-toggle{display:flex;}
  .mobile-bar{
    display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
    max-width:100%;padding:0 20px;height:64px;
  }
  .nav-inner{display:none;}
  .site-header .nav-toggle{justify-self:end;}
  .relate-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-inner{padding:48px 24px 0;}
  .footer-bottom{padding:18px 0 24px;}
  .container{padding:0 20px;}
  .article-head,.reading,.article-hero-line{padding:0 20px;}
  .article-title{font-size:30px;}
  .cta-bar{padding:24px;flex-direction:column;align-items:flex-start;}
  .cta-bar .btn{width:100%;}
}
@media (max-width:767px){
  body.site-body{font-size:16px;}
  .article-title{font-size:26px;}
  .reading .prose h2{font-size:21px;margin-top:34px;}
  .reading .prose h3{font-size:18px;}
  .relate-grid{grid-template-columns:1fr;}
  .section-title{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-desc{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{margin-top:56px;}
  .cta-bar h3{font-size:18px;}
}
@media (max-width:520px){
  .nav-cta{padding:0 14px;font-size:13px;height:40px;}
  .brand-main{font-size:18px;}
  .brand-sub{font-size:10px;letter-spacing:.1em;margin-top:4px;}
  .article-meta{font-size:12px;}
  .btn{width:100%;}
  .cta-bar .btn{width:100%;}
  .back-row .btn{width:100%;}
}

/* roulang page: category1 */
:root{
    --ink:#17141C;
    --ink-2:#2B2536;
    --paper:#FAF6F0;
    --card:#FFFFFF;
    --brand:#F0502A;
    --brand-600:#D23F1C;
    --brand-soft:#FDE7DF;
    --accent:#C8F45C;
    --violet:#6B4EF0;
    --muted:#6E6878;
    --line:#E7E0D6;
    --r-btn:12px;
    --r-card:18px;
    --r-img:20px;
    --r-block:28px;
    --shadow:0 1px 2px rgba(23,20,28,.06),0 12px 32px -14px rgba(23,20,28,.18);
    --shadow-hover:0 2px 4px rgba(23,20,28,.08),0 22px 44px -18px rgba(23,20,28,.28);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    font-size:16.5px;
    line-height:1.8;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  ::selection{background:var(--accent);color:var(--ink);}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:1024px){ .container{padding:0 32px;} }

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(250,246,240,.94);
    backdrop-filter:blur(10px);
    border-bottom:1px solid transparent;
    transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .site-header.is-scrolled{
    background:#fff;
    border-bottom-color:var(--line);
    box-shadow:0 10px 28px -22px rgba(23,20,28,.65);
  }
  .header-inner{
    max-width:1200px;margin:0 auto;padding:0 32px;height:72px;
    display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
  }
  .nav-left{display:flex;align-items:center;gap:28px;}
  .nav-right{display:flex;align-items:center;gap:24px;justify-content:flex-end;}
  .nav-link{
    position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
    padding:6px 2px;transition:color .2s ease;
  }
  .nav-link:hover{color:var(--brand);}
  .nav-link.active{color:var(--ink);font-weight:700;}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
    background:var(--accent);border-radius:2px;
  }
  .brand{display:flex;flex-direction:column;align-items:center;line-height:1.06;}
  .brand-main{font-size:22px;font-weight:900;letter-spacing:.01em;color:var(--ink);}
  .brand-sub{font-size:11px;letter-spacing:.12em;color:var(--muted);margin-top:3px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 24px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;
    transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -16px rgba(240,80,42,.9);}
  .btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-outline{border:1.5px solid var(--ink);color:var(--ink);background:transparent;}
  .btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
  .btn-sm{min-height:44px;padding:0 20px;}
  .nav-cta{height:44px;min-height:44px;padding:0 20px;}

  .menu-toggle,.mobile-cta{display:none;}
  .menu-toggle{
    width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
    background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  }
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
  .menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .menu-toggle.is-open span:nth-child(2){opacity:0;}
  .menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .mobile-cta{
    height:40px;min-height:40px;padding:0 14px;font-size:14px;border-radius:10px;
    background:var(--brand);color:#fff;font-weight:600;align-items:center;
  }

  .mobile-drawer{
    position:fixed;top:0;left:0;right:0;height:100vh;z-index:70;
    background:#fff;transform:translateY(-102%);
    transition:transform .32s cubic-bezier(.4,0,.2,1);
    display:flex;flex-direction:column;padding:88px 24px 32px;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateY(0);}
  .mobile-drawer a.drawer-link{
    display:flex;align-items:center;height:56px;font-size:17px;font-weight:600;
    border-bottom:1px solid var(--line);color:var(--ink-2);
  }
  .mobile-drawer a.drawer-link.active{color:var(--brand);}
  .mobile-drawer .drawer-cta{margin-top:28px;width:100%;}

  @media (max-width:1023px){
    .header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 20px;gap:12px;}
    .nav-left,.nav-right{display:none;}
    .menu-toggle{display:flex;}
    .mobile-cta{display:inline-flex;}
    .brand-main{font-size:18px;}
    .brand-sub{font-size:10px;letter-spacing:.1em;}
  }
  @media (max-width:380px){
    .brand-main{font-size:16px;}
    .mobile-cta{padding:0 10px;font-size:13px;}
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:96px 0;}
  .section-tight{padding:64px 0;}
  @media (max-width:767px){ .section{padding:56px 0;} .section-tight{padding:44px 0;} }

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--muted);
    text-transform:uppercase;
  }
  .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
    margin-bottom:40px;flex-wrap:wrap;
  }
  .section-title{font-size:32px;font-weight:800;line-height:1.25;letter-spacing:-.01em;margin-top:12px;}
  @media (max-width:767px){ .section-title{font-size:24px;} }
  .section-desc{font-size:15px;color:var(--muted);margin-top:10px;max-width:640px;}

  .arrow-link{
    display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink);
    border-bottom:2px solid transparent;padding-bottom:2px;transition:color .2s ease,border-color .2s ease;
  }
  .arrow-link span.arrow{transition:transform .2s ease;display:inline-block;}
  .arrow-link:hover{color:var(--brand);border-bottom-color:var(--accent);}
  .arrow-link:hover span.arrow{transform:translateX(2px);}
  .arrow-link:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}

  /* ---------- 分类头部 ---------- */
  .cat-hero{position:relative;overflow:hidden;padding:44px 0 8px;}
  .hero-glow{
    position:absolute;top:-160px;right:-140px;width:560px;height:560px;pointer-events:none;
    background:radial-gradient(circle,rgba(240,80,42,.16),rgba(240,80,42,0) 65%);
  }
  .dot-field{
    position:absolute;left:-60px;bottom:-40px;width:320px;height:220px;pointer-events:none;opacity:.55;
    background-image:radial-gradient(rgba(23,20,28,.16) 1.5px,transparent 1.5px);
    background-size:16px 16px;
  }
  .breadcrumb{
    position:relative;z-index:1;display:flex;align-items:center;gap:8px;
    font-size:13px;color:var(--muted);flex-wrap:wrap;
  }
  .breadcrumb a{transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:#C9C1B4;}

  .cat-hero-grid{
    position:relative;z-index:1;
    display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:end;
    margin-top:28px;
  }
  .cat-title{
    font-size:48px;line-height:1.15;font-weight:900;letter-spacing:-.02em;margin-top:14px;
  }
  .cat-title em{font-style:normal;color:var(--brand);}
  .cat-lead{font-size:14px;color:var(--muted);margin-top:16px;}
  .cat-intro{font-size:16.5px;line-height:1.85;color:var(--ink-2);margin-top:18px;max-width:680px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
  .trust-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;}
  .trust-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
  .trust-item::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 auto;}
  .cat-thumb{
    width:320px;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);
    border:1px solid var(--line);background:var(--card);
  }
  .cat-thumb img{width:100%;height:200px;object-fit:cover;}
  @media (max-width:1023px){
    .cat-hero-grid{grid-template-columns:1fr;gap:28px;}
    .cat-thumb{display:none;}
    .cat-title{font-size:32px;}
  }

  /* ---------- 资讯卡片 ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  @media (max-width:1023px){ .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (max-width:639px){ .card-grid{grid-template-columns:1fr;} }

  .info-card{
    display:flex;flex-direction:column;background:var(--card);
    border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
    box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(240,80,42,.35);}
  .info-card:focus-within{outline:2px solid var(--accent);outline-offset:3px;}
  .card-media{aspect-ratio:16/9;overflow:hidden;background:var(--paper);}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
  .info-card:hover .card-media img{transform:scale(1.04);}
  .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
  .badge{
    display:inline-flex;align-items:center;font-size:12px;letter-spacing:.04em;font-weight:600;
    padding:4px 10px;border-radius:999px;background:rgba(107,78,240,.1);color:var(--violet);
    width:fit-content;
  }
  .badge-warm{background:var(--brand-soft);color:var(--brand-600);}
  .card-title{
    font-size:16px;font-weight:700;line-height:1.55;margin-top:12px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-text{
    font-size:14px;line-height:1.75;color:var(--muted);margin-top:8px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-foot{
    margin-top:16px;padding-top:12px;border-top:1px dashed var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--muted);
  }
  .card-foot .read{color:var(--ink);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
  .info-card:hover .card-foot .read{color:var(--brand);}

  /* ---------- 错落栅格 ---------- */
  .split{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
  @media (max-width:1023px){ .split{grid-template-columns:1fr;} }
  .feature-card{
    display:grid;grid-template-columns:42% minmax(0,1fr);
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
  }
  .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  .feature-card .fc-media{background:var(--paper);min-height:100%;}
  .feature-card .fc-media img{width:100%;height:100%;object-fit:cover;}
  .feature-card .fc-body{padding:28px;display:flex;flex-direction:column;justify-content:center;gap:12px;}
  .feature-card h3{font-size:20px;font-weight:800;line-height:1.45;}
  .feature-card p{font-size:14.5px;line-height:1.8;color:var(--muted);}
  @media (max-width:639px){
    .feature-card{grid-template-columns:1fr;}
    .feature-card .fc-media{aspect-ratio:16/10;}
    .feature-card .fc-body{padding:22px;}
  }
  .quote-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
  .quote-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:space-between;gap:16px;
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(107,78,240,.28);}
  .quote-card .qtext{font-size:15.5px;line-height:1.8;font-weight:500;color:var(--ink-2);}
  .quote-card .qtext::before{content:"“";color:var(--brand);font-weight:900;margin-right:2px;}
  .quote-card .qtext::after{content:"”";color:var(--brand);font-weight:900;margin-left:2px;}

  /* ---------- 阅读路径 ---------- */
  .path-wrap{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:40px;align-items:start;}
  @media (max-width:1023px){ .path-wrap{grid-template-columns:1fr;gap:28px;} }
  .steps{position:relative;display:flex;flex-direction:column;}
  .step{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;padding-bottom:32px;}
  .step:last-child{padding-bottom:0;}
  .step:not(:last-child)::before{
    content:"";position:absolute;left:27px;top:56px;bottom:6px;width:0;
    border-left:2px dashed var(--line);
  }
  .step-num{
    position:relative;z-index:1;width:56px;height:56px;border-radius:50%;
    background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
    font-size:17px;font-weight:900;color:var(--violet);box-shadow:var(--shadow);
  }
  .step-body h3{font-size:18px;font-weight:700;line-height:1.5;}
  .step-body p{font-size:14.5px;line-height:1.8;color:var(--muted);margin-top:6px;}
  .side-card{
    background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
    padding:28px;box-shadow:var(--shadow);
  }
  .side-card h3{font-size:18px;font-weight:800;}
  .side-card .side-sub{font-size:13px;color:var(--muted);margin-top:6px;}
  .check-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
  .check-list li{position:relative;padding-left:26px;font-size:14.5px;line-height:1.7;color:var(--ink-2);}
  .check-list li::before{
    content:"";position:absolute;left:0;top:8px;width:12px;height:12px;border-radius:4px;
    background:var(--accent);
  }

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start;}
  @media (max-width:1023px){ .faq-wrap{grid-template-columns:1fr;gap:28px;} }
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:14px;
    margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:hover{border-color:rgba(240,80,42,.3);}
  .faq-item.is-open{box-shadow:var(--shadow);border-color:rgba(240,80,42,.35);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:16px 20px;font-size:16px;font-weight:600;text-align:left;line-height:1.6;
  }
  .faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:-4px;}
  .faq-icon{flex:0 0 auto;font-size:22px;line-height:1;color:var(--brand);transition:transform .28s ease;font-weight:400;}
  .faq-item.is-open .faq-icon{transform:rotate(45deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
  .faq-item.is-open .faq-a{max-height:420px;}
  .faq-a p{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--muted);}

  /* ---------- 相关分类 ---------- */
  .pill-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
  .pill{
    display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;
    border-radius:999px;border:1px solid var(--line);background:#fff;
    font-size:14.5px;font-weight:600;color:var(--ink-2);
    transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .pill:hover{background:var(--brand-soft);border-color:transparent;color:var(--brand-600);transform:translateY(-1px);}
  .pill.is-current{background:var(--ink);color:#fff;border-color:var(--ink);}
  .pill.is-current:hover{background:var(--ink);color:#fff;}

  /* ---------- CTA 横条 ---------- */
  .cta-bar{
    background:var(--brand-soft);border-radius:var(--r-card);
    padding:32px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;
    flex-wrap:wrap;
  }
  .cta-bar h3{font-size:22px;font-weight:800;line-height:1.4;letter-spacing:-.01em;}
  .cta-bar p{font-size:14.5px;color:#7A5A4C;margin-top:6px;}
  @media (max-width:639px){
    .cta-bar{padding:24px;flex-direction:column;align-items:flex-start;}
    .cta-bar .btn{width:100%;}
  }

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:#fff;margin-top:96px;}
  .footer-inner{
    max-width:1200px;margin:0 auto;padding:64px 32px 0;
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:40px;
  }
  @media (max-width:1023px){ .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:48px 20px 0;} }
  @media (max-width:639px){ .footer-inner{grid-template-columns:1fr;} }
  .foot-brand{display:flex;flex-direction:column;line-height:1.1;}
  .foot-brand .fb-main{font-size:22px;font-weight:900;}
  .foot-brand .fb-sub{font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.55);margin-top:4px;}
  .foot-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin-top:16px;max-width:280px;}
  .foot-title{font-size:14px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:16px;}
  .foot-list{display:flex;flex-direction:column;gap:10px;}
  .foot-list a,.foot-list span{font-size:14px;color:rgba(255,255,255,.6);transition:color .2s ease;}
  .foot-list a:hover{color:var(--accent);}
  .footer-bottom{
    max-width:1200px;margin:48px auto 0;padding:22px 32px 32px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(255,255,255,.45);
  }
  @media (max-width:639px){ .footer-bottom{padding:20px 20px 28px;} }

  .skip-link{
    position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;
    padding:10px 16px;border-radius:0 0 10px 0;z-index:200;
  }
  .skip-link:focus{left:0;}

/* roulang page: category3 */
:root{
  --ink:#17141C;
  --ink-2:#2B2536;
  --paper:#FAF6F0;
  --card:#FFFFFF;
  --brand:#F0502A;
  --brand-600:#D23F1C;
  --brand-soft:#FDE7DF;
  --accent:#C8F45C;
  --violet:#6B4EF0;
  --muted:#6E6878;
  --line:#E7E0D6;
  --radius-btn:12px;
  --radius-card:18px;
  --radius-img:20px;
  --radius-block:28px;
  --shadow:0 1px 2px rgba(23,20,28,.06),0 12px 32px -14px rgba(23,20,28,.18);
  --shadow-hover:0 2px 6px rgba(23,20,28,.08),0 24px 48px -18px rgba(23,20,28,.26);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:6px 12px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:32px;font-weight:900;}
.section-head .sect-note{font-size:14px;color:var(--muted);margin-top:10px;}
.arrow-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink);border-bottom:2px solid transparent;padding-bottom:2px;transition:all .2s ease;}
.arrow-link span.ar{transition:transform .2s ease;}
.arrow-link:hover{color:var(--brand);border-bottom-color:var(--accent);}
.arrow-link:hover span.ar{transform:translateX(3px);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:0;cursor:pointer;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border-radius:var(--radius-btn);
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(240,80,42,.9);}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;border:1.5px solid var(--ink);color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.btn-xs{height:38px;padding:0 14px;font-size:13px;border-radius:10px;}
.btn-block{width:100%;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,246,240,.86);
  backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 24px -18px rgba(23,20,28,.5);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:72px;
}
.nav-left{display:flex;align-items:center;gap:26px;}
.nav-right{display:flex;align-items:center;gap:26px;justify-self:end;}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-2);
  padding:6px 0;transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);}
.brand{display:flex;flex-direction:column;align-items:center;justify-self:center;line-height:1;}
.brand-main{font-size:22px;font-weight:900;letter-spacing:.02em;color:var(--ink);}
.brand-sub{font-size:11px;letter-spacing:.14em;color:var(--muted);margin-top:4px;font-weight:600;}
.menu-btn{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.mobile-cta{display:none;justify-self:end;}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;background:#fff;
  padding:24px 20px 32px;display:flex;flex-direction:column;
  transform:translateY(-102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  font-size:20px;line-height:1;color:var(--ink);cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;font-size:16px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-cta{margin-top:24px;}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 72px;
  background:
    radial-gradient(600px 320px at 88% 0%, rgba(240,80,42,.13), transparent 70%),
    radial-gradient(420px 260px at 6% 92%, rgba(200,244,92,.16), transparent 72%),
    var(--paper);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(23,20,28,.07) 1px, transparent 1px);
  background-size:16px 16px;opacity:.55;
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.8), transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom, rgba(0,0,0,.8), transparent 78%);
}
.crumbs{position:relative;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:24px;flex-wrap:wrap;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line);}
.crumbs .cur{color:var(--ink);font-weight:600;}
.hero-grid{position:relative;display:grid;grid-template-columns:1.55fr .85fr;gap:48px;align-items:center;}
.hero-grid h1{font-size:44px;font-weight:900;line-height:1.18;letter-spacing:-.02em;}
.hero-grid h1 .hl{color:var(--brand);}
.hero-lead{margin-top:18px;font-size:14px;color:var(--muted);letter-spacing:.02em;}
.hero-desc{margin-top:16px;font-size:16px;color:var(--ink-2);max-width:640px;}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-img);box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.hero-media .dot-deco{
  position:absolute;right:-10px;top:-10px;width:18px;height:18px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 6px rgba(200,244,92,.28);
}
.hero-badges{display:flex;gap:18px;margin-top:26px;flex-wrap:wrap;}
.hero-badges li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.hero-badges li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 6px;}

/* ---------- Metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.metric-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(240,80,42,.32);}
.metric-num{
  font-size:50px;font-weight:900;line-height:1;color:var(--violet);
  letter-spacing:-.03em;display:block;
}
.metric-label{margin-top:12px;font-size:16px;font-weight:700;}
.metric-note{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.7;}

/* ---------- Compare table ---------- */
.compare-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);overflow:hidden;
}
.cmp-table{width:100%;border-collapse:collapse;font-size:15px;}
.cmp-table thead th{
  background:#fff;text-align:left;font-size:13px;letter-spacing:.06em;
  color:var(--muted);font-weight:700;padding:20px 24px;border-bottom:1px solid var(--line);
}
.cmp-table tbody td{padding:22px 24px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.75;color:var(--ink-2);}
.cmp-table tbody tr:nth-child(even){background:var(--paper);}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table td:first-child{font-weight:700;color:var(--ink);}
.tag{
  display:inline-block;font-size:12px;letter-spacing:.04em;font-weight:700;
  padding:4px 10px;border-radius:999px;
}
.tag-violet{background:rgba(107,78,240,.1);color:var(--violet);}
.tag-brand{background:var(--brand-soft);color:var(--brand-600);}
.cmp-note{margin-top:16px;font-size:13px;color:var(--muted);}

/* ---------- Flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(240,80,42,.32);}
.flow-index{
  display:block;font-size:44px;font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1.6px var(--line);letter-spacing:-.02em;
}
.flow-card h3{margin-top:14px;font-size:18px;font-weight:800;}
.flow-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.75;}
.flow-card .flow-dot{
  position:absolute;right:22px;top:30px;width:9px;height:9px;border-radius:50%;background:var(--accent);
}

/* ---------- Checklist ---------- */
.check-split{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center;}
.check-panel{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow);
}
.check-panel h3{font-size:20px;font-weight:800;margin-bottom:6px;}
.check-panel .panel-sub{font-size:13px;color:var(--muted);margin-bottom:20px;}
.check-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list li::before{
  content:"";flex:0 0 16px;width:16px;height:16px;margin-top:6px;border-radius:5px;
  background:var(--accent);
  clip-path:polygon(14% 46%,0 62%,40% 100%,100% 22%,84% 8%,38% 68%);
}
.check-copy h2{font-size:32px;font-weight:900;margin-bottom:16px;}
.check-copy p{color:var(--muted);font-size:15.5px;margin-bottom:16px;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start;}
.faq-side h2{font-size:32px;font-weight:900;margin-bottom:14px;}
.faq-side p{font-size:15px;color:var(--muted);}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);margin-bottom:14px;overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(240,80,42,.3);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;cursor:pointer;list-style:none;font-size:16px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{position:relative;flex:0 0 22px;width:22px;height:22px;transition:transform .25s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-body{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--muted);}

/* ---------- CTA ---------- */
.cta-block{padding:0 0 96px;}
.cta-inner{
  background:var(--ink);color:#fff;border-radius:var(--radius-block);
  padding:64px 56px;display:grid;grid-template-columns:1fr 1fr;gap:48px;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle, rgba(200,244,92,.24), transparent 68%);
  pointer-events:none;
}
.cta-text h2{font-size:32px;font-weight:900;color:#fff;line-height:1.25;}
.cta-text p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.68);max-width:420px;}
.ticks{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.ticks li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(255,255,255,.86);}
.ticks li::before{content:"";flex:0 0 16px;width:16px;height:16px;margin-top:5px;border-radius:5px;background:var(--accent);clip-path:polygon(14% 46%,0 62%,40% 100%,100% 22%,84% 8%,38% 68%);}
.cta-form{
  position:relative;z-index:2;background:#fff;border-radius:var(--radius-card);
  padding:28px;color:var(--ink);box-shadow:0 24px 60px -30px rgba(0,0,0,.7);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:8px;letter-spacing:.02em;}
.field input[type="text"],
.field input[type="tel"]{
  width:100%;height:48px;padding:0 14px;font-size:15px;font-family:inherit;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:12px;transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:#A9A2AE;}
.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(200,244,92,.42);}
.pill-group{display:flex;gap:10px;flex-wrap:wrap;}
.pill-group input{position:absolute;opacity:0;width:0;height:0;}
.pill-group label{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 18px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-2);cursor:pointer;background:#fff;
  transition:all .18s ease;margin:0;
}
.pill-group label:hover{border-color:rgba(240,80,42,.5);color:var(--brand-600);}
.pill-group input:checked + label{background:var(--ink);color:#fff;border-color:var(--ink);}
.pill-group input:focus-visible + label{outline:2px solid var(--accent);outline-offset:2px;}
.form-hint{margin-top:12px;font-size:12.5px;color:var(--muted);line-height:1.7;}

/* ---------- Related pills ---------- */
.related{display:flex;gap:12px;flex-wrap:wrap;}
.related a{
  display:inline-flex;align-items:center;height:42px;padding:0 20px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink-2);
  transition:all .2s ease;
}
.related a:hover{background:var(--brand-soft);border-color:transparent;color:var(--brand-600);}
.related a.is-current{background:var(--ink);border-color:var(--ink);color:#fff;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#fff;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.f-brand .f-logo{font-size:22px;font-weight:900;line-height:1.2;}
.f-brand .f-logo span{display:block;font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.5);margin-top:6px;font-weight:600;}
.f-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.55);max-width:280px;}
.f-title{font-size:14px;font-weight:800;letter-spacing:.06em;color:#fff;margin-bottom:18px;}
.f-links{display:flex;flex-direction:column;gap:12px;}
.f-links a{font-size:14px;color:rgba(255,255,255,.58);transition:color .18s ease;}
.f-links a:hover{color:var(--accent);}
.f-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.58);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{max-width:480px;}
  .hero-grid h1{font-size:36px;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .check-split{grid-template-columns:1fr;gap:32px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;padding:48px 36px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:860px){
  .nav-left,.nav-right{display:none;}
  .menu-btn{display:flex;}
  .mobile-cta{display:inline-flex;}
  .header-inner{min-height:64px;}
  .brand-main{font-size:18px;}
  .brand-sub{font-size:10px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-head h2,.faq-side h2,.check-copy h2,.cta-text h2{font-size:24px;}
  .hero-grid h1{font-size:30px;}
  .page-hero{padding:32px 0 48px;}
  .hero-media{display:none;}
  .metric-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .metric-num{font-size:42px;}
  .compare-wrap{background:transparent;border:0;box-shadow:none;border-radius:0;}
  .cmp-table thead{display:none;}
  .cmp-table,.cmp-table tbody,.cmp-table tr,.cmp-table td{display:block;width:100%;}
  .cmp-table tbody tr{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    margin-bottom:16px;padding:8px 0;box-shadow:var(--shadow);
  }
  .cmp-table tbody tr:nth-child(even){background:#fff;}
  .cmp-table tbody td{border:0;padding:10px 20px;font-size:14.5px;}
  .cmp-table tbody td::before{
    content:attr(data-label);display:block;font-size:12px;letter-spacing:.06em;
    color:var(--muted);font-weight:700;margin-bottom:4px;
  }
  .cmp-table td:first-child{font-size:17px;padding-top:14px;}
  .cta-inner{padding:36px 22px;border-radius:22px;}
  .cta-form{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .site-footer{padding-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .pill-group label{padding:0 14px;font-size:13px;}
}

/* roulang page: category2 */
:root{
    --ink:#17141C;
    --ink-2:#2B2536;
    --paper:#FAF6F0;
    --card:#FFFFFF;
    --brand:#F0502A;
    --brand-600:#D23F1C;
    --brand-soft:#FDE7DF;
    --accent:#C8F45C;
    --violet:#6B4EF0;
    --muted:#6E6878;
    --line:#E7E0D6;
    --r-btn:12px;
    --r-card:18px;
    --r-img:20px;
    --r-block:28px;
    --shadow-sm:0 1px 2px rgba(23,20,28,.06),0 12px 32px -14px rgba(23,20,28,.18);
    --shadow-lg:0 2px 6px rgba(23,20,28,.08),0 22px 48px -18px rgba(23,20,28,.26);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16.5px;
    line-height:1.8;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;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:6px;}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
    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;box-shadow:0 10px 26px -16px rgba(240,80,42,.95);}
  .btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:0 14px 30px -16px rgba(240,80,42,1);}
  .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:#fff;transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-sm{height:42px;padding:0 20px;font-size:14px;}
  .btn-block{width:100%;}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(250,246,240,.82);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .site-header.is-scrolled,
  .site-header.drawer-open{
    background:#fff;border-bottom-color:var(--line);
    box-shadow:0 10px 30px -24px rgba(23,20,28,.75);
  }
  .nav-wrap{
    display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
    gap:16px;height:72px;
  }
  .nav-left{display:flex;align-items:center;gap:26px;justify-self:start;}
  .nav-right{display:flex;align-items:center;gap:26px;justify-self:end;}
  .nav-link{
    position:relative;font-size:15px;font-weight:500;color:var(--ink);
    padding:6px 0;transition:color .18s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
    background:var(--accent);transform:scaleX(0);transform-origin:left;
    transition:transform .24s ease;
  }
  .nav-link:hover{color:var(--brand);}
  .nav-link.active{font-weight:700;}
  .nav-link.active::after{transform:scaleX(1);}
  .brand{justify-self:center;display:inline-flex;align-items:baseline;gap:7px;line-height:1;padding:4px 0;}
  .brand-main{font-size:22px;font-weight:900;letter-spacing:.01em;color:var(--ink);}
  .brand-sub{font-size:11px;font-weight:600;letter-spacing:.12em;color:var(--muted);}
  .nav-toggle{
    display:none;width:40px;height:40px;border-radius:10px;
    border:1px solid var(--line);background:#fff;
    align-items:center;justify-content:center;flex-direction:column;gap:5px;
    justify-self:start;transition:background-color .18s ease;
  }
  .nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink);transition:transform .22s ease,opacity .22s ease;}
  .nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle.is-active span:nth-child(2){opacity:0;}
  .nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  .mobile-drawer{
    position:fixed;left:0;right:0;top:0;z-index:70;
    background:#fff;padding:84px 20px 28px;
    transform:translateY(-102%);visibility:hidden;
    transition:transform .3s ease,visibility .3s ease;
    box-shadow:0 28px 56px -28px rgba(23,20,28,.45);
    max-height:100vh;overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateY(0);visibility:visible;}
  .drawer-nav a{
    display:flex;align-items:center;height:56px;
    border-bottom:1px solid var(--line);
    font-size:16px;font-weight:600;color:var(--ink);
  }
  .drawer-nav a:first-child{border-top:1px solid var(--line);}
  .drawer-nav a.is-current{color:var(--brand);}
  .drawer-cta{margin-top:24px;}

  /* ---------- 通用板块 ---------- */
  .section{padding:64px 0;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
  .section-title{font-size:32px;font-weight:800;line-height:1.25;letter-spacing:-.01em;}
  .section-desc{font-size:14px;color:var(--muted);line-height:1.7;margin-top:8px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:700;letter-spacing:.04em;
    color:var(--violet);background:rgba(107,78,240,.1);
    padding:6px 12px;border-radius:999px;margin-bottom:18px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--violet);}

  /* ---------- 面包屑 ---------- */
  .crumbs{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--muted);padding-top:32px;
  }
  .crumbs a{transition:color .18s ease;}
  .crumbs a:hover{color:var(--brand);}
  .crumbs .sep{color:#CFC6B9;}
  .crumbs .current{color:var(--ink-2);font-weight:600;}

  /* ---------- 页头 ---------- */
  .page-hero{padding:24px 0 56px;position:relative;}
  .page-hero::before{
    content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
    background:radial-gradient(circle at center,rgba(240,80,42,.12),rgba(240,80,42,0) 68%);
    pointer-events:none;
  }
  .page-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:center;position:relative;}
  .page-hero h1{font-size:42px;line-height:1.2;font-weight:900;letter-spacing:-.015em;}
  .page-hero .lead{font-size:18px;line-height:1.75;color:var(--muted);margin-top:18px;max-width:660px;}
  .hero-note{font-size:14px;color:var(--ink-2);margin-top:20px;display:inline-flex;align-items:center;gap:8px;}
  .hero-note::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);}
  .hero-figure img{
    width:320px;height:200px;object-fit:cover;border-radius:16px;
    border:1px solid var(--line);box-shadow:var(--shadow-sm);margin-left:auto;
  }

  /* ---------- 步骤条 ---------- */
  .step-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start;}
  .steps{position:relative;display:flex;flex-direction:column;gap:24px;}
  .steps::before{
    content:"";position:absolute;left:19px;top:22px;bottom:22px;width:2px;
    background:repeating-linear-gradient(to bottom,var(--line) 0 6px,transparent 6px 12px);
  }
  .step{position:relative;display:grid;grid-template-columns:40px minmax(0,1fr);gap:20px;align-items:start;}
  .step-dot{
    width:40px;height:40px;border-radius:50%;background:#fff;
    border:1.5px solid var(--line);color:var(--violet);
    display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:800;letter-spacing:.02em;
    position:relative;z-index:1;transition:border-color .2s ease,color .2s ease;
  }
  .step:hover .step-dot{border-color:var(--brand);color:var(--brand);}
  .step-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:22px 26px;box-shadow:var(--shadow-sm);
    transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  }
  .step-card:hover{border-color:rgba(240,80,42,.35);transform:translateY(-3px);box-shadow:var(--shadow-lg);}
  .step-card h3{font-size:18px;font-weight:700;margin-bottom:6px;line-height:1.5;}
  .step-card p{font-size:15px;line-height:1.8;color:var(--muted);}

  .side-card{
    background:linear-gradient(160deg,#F3ECE2 0%,var(--paper) 100%);
    border:1px solid var(--line);border-radius:var(--r-card);
    padding:28px;box-shadow:var(--shadow-sm);position:sticky;top:96px;
  }
  .side-card h3{font-size:17px;font-weight:800;margin-bottom:6px;}
  .side-card .side-sub{font-size:13px;color:var(--muted);margin-bottom:20px;}
  .check-list li{
    position:relative;padding-left:28px;font-size:15px;line-height:1.75;
    color:var(--ink-2);margin-bottom:14px;
  }
  .check-list li:last-child{margin-bottom:0;}
  .check-list li::before{
    content:"✓";position:absolute;left:0;top:3px;
    width:18px;height:18px;line-height:18px;text-align:center;
    border-radius:50%;background:var(--accent);color:var(--ink);
    font-size:11px;font-weight:900;
  }

  /* ---------- 场景卡片 ---------- */
  .scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .scene-card{
    display:flex;flex-direction:column;overflow:hidden;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-sm);
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(240,80,42,.25);}
  .scene-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--paper);}
  .scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
  .scene-card:hover .scene-thumb img{transform:scale(1.04);}
  .scene-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .badge{
    display:inline-flex;align-items:center;align-self:flex-start;
    font-size:12px;font-weight:700;letter-spacing:.04em;
    padding:5px 11px;border-radius:999px;
    color:var(--violet);background:rgba(107,78,240,.1);
  }
  .badge-warm{color:var(--brand-600);background:var(--brand-soft);}
  .scene-body h3{font-size:18px;font-weight:700;line-height:1.5;}
  .scene-body p{font-size:14.5px;line-height:1.8;color:var(--muted);}

  /* ---------- 进阶台阶 ---------- */
  .level-list{display:grid;gap:20px;}
  .level-item{
    display:grid;grid-template-columns:104px minmax(0,1fr);gap:24px;align-items:center;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:26px 30px;box-shadow:var(--shadow-sm);
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .level-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(240,80,42,.25);}
  .level-num{
    font-size:64px;font-weight:900;line-height:1;
    color:transparent;-webkit-text-stroke:2px var(--line);
    letter-spacing:-.02em;
  }
  .level-item h3{font-size:18px;font-weight:700;margin-bottom:6px;}
  .level-item p{font-size:15px;line-height:1.8;color:var(--muted);}

  /* ---------- FAQ ---------- */
  .faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start;}
  .faq-aside .section-title{margin-bottom:12px;}
  .faq-aside p{font-size:15px;line-height:1.8;color:var(--muted);max-width:320px;}
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:14px;
    margin-bottom:12px;overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:last-child{margin-bottom:0;}
  .faq-item.is-open{border-color:rgba(240,80,42,.35);box-shadow:var(--shadow-sm);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:17px 22px;text-align:left;font-size:16px;font-weight:600;line-height:1.6;
    transition:color .18s ease;
  }
  .faq-q:hover{color:var(--brand);}
  .faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;transition:transform .28s ease;}
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;}
  .faq-icon::before{left:0;top:9px;width:20px;height:2px;}
  .faq-icon::after{left:9px;top:0;width:2px;height:20px;}
  .faq-item.is-open .faq-icon{transform:rotate(45deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
  .faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--muted);}

  /* ---------- 相关分类 ---------- */
  .pill-group{display:flex;flex-wrap:wrap;gap:12px;}
  .pill{
    display:inline-flex;align-items:center;height:44px;padding:0 22px;
    border-radius:999px;border:1px solid var(--line);background:#fff;
    font-size:14px;font-weight:600;color:var(--ink-2);
    transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  }
  .pill:hover{background:var(--brand-soft);border-color:transparent;color:var(--brand-600);transform:translateY(-2px);}
  .pill.is-current{background:var(--ink);border-color:var(--ink);color:#fff;}
  .pill.is-current:hover{background:var(--ink);color:#fff;transform:none;}

  /* ---------- CTA 横条 ---------- */
  .cta-strip{
    display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
    background:var(--brand-soft);border-radius:var(--r-card);
    padding:34px 40px;
  }
  .cta-strip h2{font-size:24px;font-weight:800;line-height:1.35;margin-bottom:6px;}
  .cta-strip p{font-size:14.5px;color:#8C5B49;line-height:1.7;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:#fff;margin-top:96px;padding-top:72px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
  .footer-brand .brand-main{color:#fff;font-size:21px;}
  .footer-brand .brand-sub{color:#9C96A6;}
  .footer-brand p{font-size:14px;line-height:1.8;color:#9C96A6;margin-top:16px;max-width:300px;}
  .footer-col h3{font-size:14px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:16px;}
  .footer-col a{display:block;font-size:14px;color:#9C96A6;padding:5px 0;transition:color .18s ease,transform .18s ease;}
  .footer-col a:hover{color:var(--accent);transform:translateX(2px);}
  .footer-col p{font-size:14px;color:#9C96A6;padding:5px 0;line-height:1.7;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.1);
    padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;
    gap:16px;flex-wrap:wrap;font-size:13px;color:#8B8595;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .page-hero h1{font-size:38px;}
  }
  @media (max-width:1023px){
    .nav-wrap{grid-template-columns:auto 1fr auto;height:64px;}
    .nav-toggle{display:flex;}
    .nav-left{display:none;}
    .nav-right{gap:12px;}
    .nav-right .nav-link{display:none;}
    .brand-main{font-size:19px;}
    .brand-sub{font-size:10px;}
    .page-hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
    .hero-figure{display:none;}
    .page-hero h1{font-size:34px;}
    .step-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
    .side-card{position:static;}
    .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .faq-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
    .faq-aside p{max-width:none;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
    .level-item{grid-template-columns:84px minmax(0,1fr);}
  }
  @media (max-width:767px){
    .wrap{padding:0 20px;}
    .section{padding:56px 0;}
    .crumbs{padding-top:20px;}
    .page-hero{padding:18px 0 44px;}
    .page-hero h1{font-size:28px;line-height:1.3;}
    .page-hero .lead{font-size:16px;}
    .section-title{font-size:24px;}
    .scene-grid{grid-template-columns:minmax(0,1fr);}
    .level-item{grid-template-columns:64px minmax(0,1fr);gap:16px;padding:22px 20px;}
    .level-num{font-size:44px;-webkit-text-stroke-width:1.6px;}
    .cta-strip{padding:26px 22px;}
    .cta-strip h2{font-size:20px;}
    .cta-strip .btn{width:100%;}
    .site-footer{margin-top:64px;padding-top:52px;}
    .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:36px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .step-card{padding:18px 20px;}
    .faq-q{padding:15px 18px;font-size:15px;}
    .faq-a-inner{padding:0 18px 18px;}
  }
  @media (max-width:520px){
    .page-hero h1{font-size:25px;}
    .step{grid-template-columns:34px minmax(0,1fr);gap:14px;}
    .step-dot{width:34px;height:34px;font-size:12px;}
    .steps::before{left:16px;}
    .btn{height:46px;padding:0 20px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  }

/* roulang page: category4 */
:root{
    --ink:#17141C;
    --ink-2:#2B2536;
    --paper:#FAF6F0;
    --card:#FFFFFF;
    --brand:#F0502A;
    --brand-600:#D23F1C;
    --brand-soft:#FDE7DF;
    --accent:#C8F45C;
    --violet:#6B4EF0;
    --muted:#6E6878;
    --line:#E7E0D6;
    --radius-btn:12px;
    --radius-card:18px;
    --radius-img:20px;
    --radius-block:28px;
    --shadow-sm:0 1px 2px rgba(23,20,28,.06),0 12px 32px -14px rgba(23,20,28,.18);
    --shadow-md:0 2px 4px rgba(23,20,28,.06),0 22px 48px -18px rgba(23,20,28,.26);
    --maxw:1200px;
    --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:var(--font-cn);
    font-size:16.5px;
    line-height:1.8;
    color:var(--ink);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-radius:var(--radius-img)}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  .container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px}
  section{position:relative}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:var(--paper);
    border-bottom:1px solid transparent;
    transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .site-header.scrolled{
    background:#fff;
    border-bottom-color:var(--line);
    box-shadow:0 1px 2px rgba(23,20,28,.06),0 10px 26px -20px rgba(23,20,28,.5);
  }
  .nav-wrap{
    max-width:var(--maxw);margin:0 auto;padding:0 32px;height:72px;
    display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;
  }
  .nav-left{display:flex;align-items:center;gap:28px;justify-self:start}
  .nav-right{display:flex;align-items:center;gap:28px;justify-self:end}
  .nav-link{
    position:relative;font-size:15px;font-weight:500;color:var(--ink);
    padding:6px 0;transition:color .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;
    background:var(--accent);border-radius:2px;transform:scaleX(0);
    transform-origin:left;transition:transform .25s ease;
  }
  .nav-link:hover{color:var(--brand)}
  .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
  .nav-link.active{color:var(--brand);font-weight:700}
  .brand{display:flex;flex-direction:column;align-items:center;line-height:1;justify-self:center}
  .brand-main{font-size:22px;font-weight:900;letter-spacing:.02em;color:var(--ink)}
  .brand-sub{font-size:11px;letter-spacing:.12em;color:var(--muted);margin-top:5px}
  .brand:hover .brand-main{color:var(--brand)}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
    transition:transform .18s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .btn-primary{background:var(--brand);color:#fff}
  .btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:0 12px 22px -14px rgba(240,80,42,.95)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
  .btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
  .btn-nav{height:44px;padding:0 20px;font-size:14px}
  .btn-block{width:100%}

  .nav-toggle{
    display:none;width:44px;height:44px;border:1px solid var(--line);
    border-radius:12px;background:#fff;align-items:center;justify-content:center;
    cursor:pointer;
  }
  .nav-toggle span{
    display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;
  }
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}

  .mobile-drawer{
    position:fixed;inset:0;background:#fff;z-index:70;
    transform:translateY(-100%);transition:transform .32s ease;
    padding:88px 24px 32px;overflow-y:auto;
  }
  .mobile-drawer.open{transform:translateY(0)}
  .mobile-drawer a{
    display:flex;align-items:center;min-height:56px;font-size:17px;font-weight:600;
    border-bottom:1px solid var(--line);color:var(--ink);
  }
  .mobile-drawer a.active{color:var(--brand)}
  .mobile-drawer .drawer-cta{
    margin-top:28px;min-height:50px;justify-content:center;display:flex;
    border:none;border-radius:var(--radius-btn);background:var(--brand);color:#fff;
  }
  .drawer-close{
    position:absolute;top:20px;right:24px;width:44px;height:44px;border-radius:12px;
    border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;cursor:pointer;color:var(--ink);
  }

  /* ---------- Page head ---------- */
  .page-head{padding:56px 0 64px;overflow:hidden}
  .page-head::before{
    content:"";position:absolute;right:-120px;top:-160px;width:520px;height:520px;
    background:radial-gradient(circle,rgba(240,80,42,.16),rgba(240,80,42,0) 68%);
    pointer-events:none;
  }
  .page-head-grid{
    position:relative;display:grid;grid-template-columns:1fr 340px;
    gap:48px;align-items:start;
  }
  .breadcrumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
  .breadcrumb a:hover{color:var(--brand)}
  .breadcrumb .sep{color:var(--line)}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;letter-spacing:.04em;font-weight:600;
    padding:5px 11px;border-radius:999px;margin-top:18px;
  }
  .badge-violet{background:rgba(107,78,240,.10);color:var(--violet)}
  .badge-brand{background:var(--brand-soft);color:var(--brand-600)}
  .page-head h1{
    font-size:44px;line-height:1.2;font-weight:900;letter-spacing:-.01em;
    margin-top:16px;max-width:16em;
  }
  .page-head h1 em{font-style:normal;color:var(--brand)}
  .page-lead{font-size:14px;color:var(--muted);margin-top:16px}
  .page-head p.desc{
    font-size:16.5px;color:var(--ink-2);margin-top:18px;max-width:34em;
  }
  .page-head-media{margin-top:34px}
  .page-head-media img{
    width:100%;aspect-ratio:16/11;object-fit:cover;
    border-radius:var(--radius-img);box-shadow:var(--shadow-sm);
    border:1px solid var(--line);
  }

  /* ---------- Section basics ---------- */
  .section{padding:0 0 96px}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:24px;margin-bottom:36px;flex-wrap:wrap;
  }
  .section-head h2{font-size:32px;font-weight:800;line-height:1.25}
  .section-head .sub{font-size:14px;color:var(--muted);max-width:26em}
  .dot-accent{
    display:inline-block;width:8px;height:8px;border-radius:999px;
    background:var(--accent);margin-right:10px;vertical-align:middle;
  }

  /* ---------- Quick facts ---------- */
  .quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .quick-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px 24px;box-shadow:var(--shadow-sm);
    transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  }
  .quick-card:hover{transform:translateY(-4px);border-color:rgba(240,80,42,.32);box-shadow:var(--shadow-md)}
  .quick-num{
    font-size:30px;font-weight:900;line-height:1;color:transparent;
    -webkit-text-stroke:1.4px var(--line);letter-spacing:.02em;
  }
  .quick-card h3{font-size:18px;font-weight:700;margin-top:14px}
  .quick-card p{font-size:14px;color:var(--muted);margin-top:10px}

  /* ---------- FAQ ---------- */
  .faq-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px 40px;align-items:start}
  .faq-group-title{
    display:flex;align-items:center;gap:10px;
    font-size:20px;font-weight:800;margin-bottom:18px;
  }
  .faq-group-title .tag{
    font-size:12px;font-weight:600;letter-spacing:.04em;
    background:rgba(107,78,240,.10);color:var(--violet);
    padding:4px 10px;border-radius:999px;
  }
  .faq-list{display:flex;flex-direction:column;gap:14px}
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--shadow-sm);overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:hover{border-color:rgba(240,80,42,.32)}
  .faq-item.open{border-color:rgba(240,80,42,.42);box-shadow:var(--shadow-md)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:16px 20px;background:transparent;border:0;cursor:pointer;
    text-align:left;font-size:16px;font-weight:700;color:var(--ink);line-height:1.6;
  }
  .faq-q .plus{
    flex:0 0 auto;width:24px;height:24px;position:relative;border-radius:999px;
    background:var(--brand-soft);transition:transform .3s ease,background .2s ease;
  }
  .faq-q .plus::before,.faq-q .plus::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);
    border-radius:2px;transform:translate(-50%,-50%);
  }
  .faq-q .plus::before{width:11px;height:2px}
  .faq-q .plus::after{width:2px;height:11px}
  .faq-item.open .faq-q .plus{transform:rotate(45deg);background:rgba(107,78,240,.14)}
  .faq-item.open .faq-q .plus::before,.faq-item.open .faq-q .plus::after{background:var(--violet)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
  .faq-item.open .faq-a{max-height:460px}
  .faq-a-inner{
    padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--muted);
  }

  /* ---------- Help card ---------- */
  .help-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-block);
    box-shadow:var(--shadow-sm);overflow:hidden;
    display:grid;grid-template-columns:1.15fr .85fr;align-items:stretch;
  }
  .help-body{padding:48px}
  .help-body h2{font-size:30px;font-weight:800;line-height:1.3}
  .help-body p{font-size:16px;color:var(--ink-2);margin-top:16px;max-width:30em}
  .help-steps{display:flex;flex-direction:column;gap:14px;margin-top:26px}
  .help-steps li{display:flex;gap:12px;font-size:15px;color:var(--ink-2)}
  .help-steps li .tick{
    flex:0 0 auto;width:20px;height:20px;border-radius:999px;background:var(--accent);
    position:relative;margin-top:3px;
  }
  .help-steps li .tick::after{
    content:"";position:absolute;left:6px;top:5px;width:7px;height:4px;
    border-left:2px solid var(--ink);border-bottom:2px solid var(--ink);
    transform:rotate(-45deg);
  }
  .help-media{position:relative;min-height:280px}
  .help-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
  .help-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}

  /* ---------- Tag links ---------- */
  .tag-cloud{display:flex;flex-wrap:wrap;gap:14px}
  .tag-link{
    display:inline-flex;align-items:center;gap:8px;
    padding:12px 22px;border-radius:999px;font-size:15px;font-weight:600;
    background:#fff;border:1px solid var(--line);color:var(--ink);
    transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .tag-link:hover{background:var(--brand-soft);border-color:rgba(240,80,42,.35);color:var(--brand-600);transform:translateY(-2px)}
  .tag-link.current{background:var(--ink);color:#fff;border-color:var(--ink)}
  .tag-link.current:hover{background:var(--ink);color:#fff}
  .tag-link .slug-dot{width:6px;height:6px;border-radius:999px;background:var(--accent)}

  /* ---------- Narrow CTA ---------- */
  .cta-strip{
    background:var(--brand-soft);border-radius:var(--radius-card);
    padding:28px 32px;display:flex;align-items:center;justify-content:space-between;
    gap:24px;flex-wrap:wrap;border:1px solid rgba(240,80,42,.16);
  }
  .cta-strip h3{font-size:20px;font-weight:800;color:var(--ink)}
  .cta-strip p{font-size:14px;color:var(--ink-2);margin-top:6px}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--ink);color:#fff;margin-top:8px}
  .footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    gap:40px;padding:64px 32px 48px;max-width:var(--maxw);margin:0 auto;
  }
  .footer-logo{display:flex;flex-direction:column;line-height:1}
  .footer-logo .f-main{font-size:22px;font-weight:900}
  .footer-logo .f-sub{font-size:11px;letter-spacing:.12em;color:#9C94A6;margin-top:6px}
  .footer-brand p{font-size:14px;line-height:1.8;color:#B9B2C4;margin-top:18px;max-width:22em}
  .footer-note{
    display:inline-flex;align-items:center;gap:8px;margin-top:18px;
    font-size:13px;color:#B9B2C4;border:1px solid rgba(255,255,255,.16);
    padding:7px 14px;border-radius:999px;
  }
  .footer-note .slug-dot{width:6px;height:6px;border-radius:999px;background:var(--accent)}
  .footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px}
  .footer-col li{font-size:14px;line-height:2.1;color:#B9B2C4}
  .footer-col a{color:#B9B2C4;transition:color .2s ease}
  .footer-col a:hover{color:var(--accent)}
  .footer-bottom{
    max-width:var(--maxw);margin:0 auto;padding:22px 32px 32px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:#9C94A6;
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1023px){
    .nav-wrap{grid-template-columns:auto 1fr auto;gap:16px;padding:0 20px;height:64px}
    .nav-left,.nav-right{display:none}
    .nav-toggle{display:flex;justify-self:start}
    .brand{grid-column:2}
    .brand-main{font-size:18px}
    .brand-sub{font-size:10px}
    .nav-mini-cta{
      grid-column:3;display:inline-flex;align-items:center;justify-content:center;
      height:38px;padding:0 14px;border-radius:10px;background:var(--brand);color:#fff;
      font-size:13px;font-weight:600;
    }
    .container{padding:0 20px}
    .page-head{padding:36px 0 48px}
    .page-head-grid{grid-template-columns:1fr;gap:28px}
    .page-head h1{font-size:32px;max-width:100%}
    .page-head-media{display:none}
    .section{padding-bottom:56px}
    .section-head h2{font-size:24px}
    .quick-grid{grid-template-columns:1fr}
    .faq-layout{grid-template-columns:1fr;gap:36px}
    .help-card{grid-template-columns:1fr}
    .help-body{padding:32px 24px}
    .help-media{min-height:200px;order:-1}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 20px 36px}
    .footer-bottom{padding:20px 20px 28px;flex-direction:column}
    .cta-strip{padding:22px 20px}
  }
  @media (min-width:1024px){
    .nav-mini-cta{display:none}
  }
  @media (max-width:640px){
    .page-head h1{font-size:28px}
    .section-head{gap:12px}
    .btn{height:46px;padding:0 20px;font-size:14.5px}
    .faq-q{font-size:15px;padding:15px 16px}
    .faq-a-inner{padding:0 16px 16px}
    .footer-grid{grid-template-columns:1fr}
    .help-actions .btn{width:100%}
    .tag-link{padding:10px 18px;font-size:14px}
  }