/* roulang page: index */
:root{
  --c-primary:#4A2E8F;
  --c-primary-deep:#241654;
  --c-accent:#F2A93B;
  --c-cool:#12B2A6;
  --c-bg:#FAF7F2;
  --c-surface:#FFFFFF;
  --c-night:#14102B;
  --c-ink:#1A1730;
  --c-ink-2:#5B5670;
  --c-line:#E5E0D6;
  --c-danger:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(21,17,46,.05);
  --sh-2:0 14px 34px -20px rgba(36,22,84,.32);
  --sec:96px;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-primary:#4A2E8F;
  --bs-primary-rgb:74,46,143;
  --bs-body-color:#1A1730;
  --bs-body-bg:#FAF7F2;
  --bs-link-color:#4A2E8F;
  --bs-link-hover-color:#12B2A6;
  --bs-border-color:#E5E0D6;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:72px;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  text-align:left;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--c-cool);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
button{font-family:inherit}
h1,h2,h3,h4{line-height:1.28;letter-spacing:.01em;color:var(--c-ink);margin:0 0 .6em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:32px;padding-right:32px}
.section{padding:var(--sec) 0}
.section-tight{padding:72px 0}
.section-night{background:var(--c-night);color:#fff;position:relative;overflow:hidden}
.section-night h2,.section-night h3{color:#fff}
.dot-field::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.section-night > .container{position:relative;z-index:2}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(74,46,143,.35);
  outline-offset:2px;
}
/* ---------- 导航 ---------- */
.site-nav{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  height:72px;
  background:rgba(250,247,242,.94);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-nav.is-scrolled{box-shadow:0 6px 18px -14px rgba(21,17,46,.35);background:rgba(250,247,242,.98)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:18px;letter-spacing:.02em}
.brand:hover{color:var(--c-primary);text-decoration:none}
.brand-mark{
  width:10px;height:10px;border-radius:999px;
  background:var(--c-accent);
  box-shadow:0 0 0 4px rgba(242,169,59,.18);
  flex:none;
}
.brand-text{white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:32px}
.nav-links{display:flex;align-items:center;gap:32px;list-style:none}
.nav-links a{
  position:relative;
  display:inline-block;
  font-size:15px;
  color:var(--c-ink);
  padding:6px 0;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-4px;
  height:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .16s ease;
}
.nav-links a:hover{color:var(--c-primary);text-decoration:none}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{font-weight:600;color:var(--c-ink)}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{
  font-size:15px;
  color:var(--c-ink);
  font-weight:600;
  padding:6px 0;
  position:relative;
}
.nav-cta::before{
  content:"";
  display:inline-block;
  width:6px;height:6px;
  border-radius:999px;
  background:var(--c-accent);
  margin-right:8px;
  vertical-align:middle;
}
.nav-cta:hover{color:var(--c-primary);text-decoration:none}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  border-radius:10px;
  color:var(--c-ink);
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.nav-toggle svg{width:18px;height:18px}
#mobileNav{width:min(88vw,380px);background:#fff;border-left:1px solid var(--c-line)}
#mobileNav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:20px 24px}
#mobileNav .brand-text{font-size:17px;font-weight:700}
#mobileNav .mobile-links{list-style:none;padding:16px 0 0}
#mobileNav .mobile-links a{
  display:block;
  font-size:20px;
  line-height:2.4;
  color:var(--c-ink);
  padding-left:14px;
  border-left:3px solid transparent;
  transition:border-color .16s ease,color .16s ease;
}
#mobileNav .mobile-links a:hover{color:var(--c-primary);text-decoration:none;border-left-color:rgba(74,46,143,.35)}
#mobileNav .mobile-links a.active{border-left-color:var(--c-accent);font-weight:600;color:var(--c-primary)}
/* ---------- 按钮 ---------- */
.btn-accent,.btn-outline-ink,.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15.5px;
  font-weight:600;
  padding:13px 26px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .16s ease,background .16s ease,color .16s ease,border-color .16s ease,filter .16s ease;
  text-decoration:none;
  line-height:1.2;
}
.btn-accent{background:var(--c-accent);color:#1A1730}
.btn-accent:hover{filter:brightness(.94);transform:translateY(-1px);color:#1A1730;text-decoration:none}
.btn-outline-ink{background:transparent;color:var(--c-ink);border-color:var(--c-line)}
.btn-outline-ink:hover{border-color:var(--c-primary);background:rgba(74,46,143,.06);color:var(--c-primary);text-decoration:none}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:rgba(255,255,255,.7);color:#fff;text-decoration:none;transform:translateY(-1px)}
/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:var(--c-night);
  color:#fff;
  min-height:76vh;
  display:flex;
  align-items:center;
  padding:96px 0;
  overflow:hidden;
}
.hero .container{position:relative;z-index:2}
.hero-h1{
  color:#fff;
  font-size:clamp(30px,4vw,50px);
  font-weight:700;
  line-height:1.22;
  margin-bottom:20px;
}
.hero-sub{
  color:rgba(255,255,255,.74);
  font-size:17px;
  line-height:1.8;
  max-width:520px;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-trust{display:flex;flex-wrap:wrap;gap:28px;list-style:none}
.hero-trust li{
  color:rgba(255,255,255,.72);
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.hero-trust li::before{
  content:"";
  width:6px;height:6px;border-radius:999px;
  background:var(--c-accent);
  flex:none;
}
.hero-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 20px 50px -30px rgba(0,0,0,.6);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(74,46,143,.08);pointer-events:none}
/* ---------- 指标带 ---------- */
.metrics{background:var(--c-night);color:#fff;position:relative;padding:56px 0;border-top:1px solid rgba(255,255,255,.10);overflow:hidden}
.metrics .container{position:relative;z-index:2}
.metric{padding:8px 24px;border-left:1px solid rgba(255,255,255,.12)}
.metric:first-child{border-left:none;padding-left:0}
.metric-num{
  display:block;
  font-size:clamp(34px,3.4vw,46px);
  font-weight:600;
  line-height:1.05;
  color:var(--c-accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.metric-label{display:block;font-size:15.5px;color:#fff;margin-bottom:4px}
.metric-note{display:block;font-size:12px;color:rgba(255,255,255,.55);line-height:1.6}
/* ---------- 板块标题 ---------- */
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--c-primary);
  font-weight:600;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-accent);display:inline-block}
.section-night .eyebrow{color:var(--c-accent)}
.section-night .eyebrow::before{background:var(--c-accent)}
.section-head h2{font-size:clamp(24px,2.6vw,33px);font-weight:700;margin-bottom:12px}
.section-lead{color:var(--c-ink-2);font-size:16px;margin:0;max-width:640px}
.section-night .section-lead{color:rgba(255,255,255,.68)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.section-head-row .section-head{margin-bottom:0}
.text-link{font-size:15px;font-weight:600;color:var(--c-primary)}
.text-link:hover{color:var(--c-cool)}
/* ---------- 服务矩阵 ---------- */
.bento-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  height:100%;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.bento-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.bento-card:hover::before{transform:scaleX(1)}
.bento-card h3{font-size:20px;margin-bottom:10px}
.bento-card p{color:var(--c-ink-2);font-size:15.5px;margin-bottom:16px}
.bento-media{border-radius:var(--r-img);overflow:hidden;margin-bottom:22px}
.bento-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.bento-card:hover .bento-media img{transform:scale(1.03)}
.tick-list{list-style:none;display:flex;flex-direction:column;gap:10px}
.tick-list li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  color:var(--c-ink-2);
  line-height:1.7;
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  border-radius:2px;
  background:rgba(74,46,143,.18);
  border:1px solid var(--c-primary);
}
.numbered-strip{
  list-style:none;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.numbered-strip li{border-top:1px solid var(--c-line)}
.numbered-strip li:first-child{border-top:none}
.numbered-strip a{
  display:flex;
  align-items:center;
  gap:20px;
  padding:22px 28px;
  color:var(--c-ink);
  transition:background .16s ease;
}
.numbered-strip a:hover{background:rgba(74,46,143,.05);text-decoration:none;color:var(--c-ink)}
.strip-num{
  font-size:30px;
  font-weight:700;
  color:rgba(74,46,143,.20);
  font-variant-numeric:tabular-nums;
  line-height:1;
  flex:none;
  min-width:52px;
}
.strip-text{flex:1;font-size:15.5px;color:var(--c-ink-2)}
.strip-text strong{display:block;color:var(--c-ink);font-size:16.5px;margin-bottom:2px;font-weight:600}
.strip-arrow{color:var(--c-primary);font-size:18px;flex:none;transition:transform .16s ease}
.numbered-strip a:hover .strip-arrow{transform:translateX(4px)}
/* ---------- 对比条 ---------- */
.compare-wrap{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:32px;
}
.compare-legend{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:26px}
.compare-legend span{font-size:13.5px;color:var(--c-ink-2);display:inline-flex;align-items:center;gap:8px}
.legend-bar{width:26px;height:8px;border-radius:999px;display:inline-block}
.legend-old{background:var(--c-line)}
.legend-new{background:var(--c-primary)}
.compare-row{
  display:grid;
  grid-template-columns:180px 1fr 120px;
  gap:24px;
  align-items:center;
  padding:18px 0;
  border-top:1px solid var(--c-line);
}
.compare-row:first-of-type{border-top:none}
.compare-name{font-size:15.5px;font-weight:600;color:var(--c-ink)}
.compare-bars{display:flex;flex-direction:column;gap:8px}
.bar{display:block;height:8px;border-radius:999px;background:var(--c-line)}
.bar-new{background:var(--c-primary)}
.compare-value{
  text-align:right;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
/* ---------- 资讯卡片 ---------- */
.post-card{
  position:relative;
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
  color:var(--c-ink);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.post-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--c-ink);text-decoration:none}
.post-card:hover::before{transform:scaleX(1)}
.post-thumb{border-radius:var(--r-img);overflow:hidden;margin-bottom:18px;background:var(--c-bg)}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.tag{
  display:inline-block;
  align-self:flex-start;
  font-size:12px;
  line-height:1.8;
  padding:1px 12px;
  border-radius:999px;
  background:rgba(74,46,143,.08);
  color:var(--c-primary);
  border:1px solid rgba(74,46,143,.14);
  margin-bottom:12px;
}
.post-title{
  font-size:19px;
  font-weight:600;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-excerpt{
  font-size:15px;
  color:var(--c-ink-2);
  margin-bottom:18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13.5px;
  color:var(--c-ink-2);
}
.meta-dot{width:5px;height:5px;border-radius:999px;background:var(--c-line);flex:none}
.post-more{color:var(--c-primary);font-weight:600;margin-left:auto}
.post-card:hover .post-more{color:var(--c-cool)}
.empty-state{
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  padding:48px 32px;
  text-align:center;
}
.empty-title{font-size:17px;font-weight:600;margin-bottom:8px}
.empty-actions{font-size:15px;color:var(--c-ink-2);margin:0}
.more-row{display:flex;justify-content:center;margin-top:40px}
/* ---------- FAQ ---------- */
.faq-acc{border-top:1px solid var(--c-line)}
.faq-acc .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--c-line)}
.faq-acc .accordion-button{
  position:relative;
  background:transparent;
  box-shadow:none;
  padding:22px 44px 22px 0;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.6;
}
.faq-acc .accordion-button::before{
  content:"";
  position:absolute;
  left:-14px;top:22px;bottom:22px;
  width:3px;
  background:var(--c-accent);
  transform:scaleY(0);
  transform-origin:top center;
  transition:transform .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent}
.faq-acc .accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:3px solid rgba(74,46,143,.25);outline-offset:2px}
.faq-acc .accordion-button::after{
  content:"+";
  background-image:none;
  font-size:20px;
  font-weight:400;
  color:var(--c-primary);
  width:auto;height:auto;
  line-height:1;
  transform:none;
  display:flex;
  align-items:center;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−"}
.faq-acc .accordion-body{
  padding:0 60px 18px 0;
  font-size:15.5px;
  line-height:1.9;
  color:var(--c-ink-2);
}
/* ---------- 表单 ---------- */
.join-grid{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:36px;
}
.join-aside{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line)}
.join-aside img{width:100%;height:100%;min-height:280px;object-fit:cover}
.entry-form .form-label{font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:6px}
.entry-form .form-control,
.entry-form .form-select{
  height:44px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-line);
  background:#fff;
  font-size:15.5px;
  color:var(--c-ink);
  padding:8px 14px;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.entry-form textarea.form-control{height:auto;min-height:110px;padding:12px 14px;line-height:1.7}
.entry-form .form-control:focus,
.entry-form .form-select:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(74,46,143,.15);
  outline:none;
}
.entry-form .form-control::placeholder{color:#9C97AA}
.entry-form .form-check-input{border-color:var(--c-line);border-radius:4px;margin-top:.4em}
.entry-form .form-check-input:checked{background-color:var(--c-primary);border-color:var(--c-primary)}
.entry-form .form-check-label{font-size:14px;color:var(--c-ink-2)}
.was-validated .form-control:invalid,
.was-validated .form-select:invalid{
  border-color:var(--c-danger);
  box-shadow:none;
  background-image:none;
}
.was-validated .form-control:invalid ~ .invalid-tip,
.was-validated .form-check-input:invalid ~ .invalid-tip{display:block}
.invalid-tip{display:none;font-size:13px;color:var(--c-danger);margin-top:6px}
.form-tip{
  display:none;
  margin-top:18px;
  font-size:14.5px;
  color:var(--c-cool);
  border-left:3px solid var(--c-cool);
  padding:10px 14px;
  background:rgba(18,178,166,.07);
  border-radius:0 8px 8px 0;
}
.form-tip.is-visible{display:block}
/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--c-night);
  color:#fff;
  padding:72px 0;
  overflow:hidden;
}
.cta-band .container{position:relative;z-index:2}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);color:#fff;margin-bottom:8px}
.cta-inner p{color:rgba(255,255,255,.68);margin:0;font-size:16px}
/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--c-night);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  overflow:hidden;
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-title{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px}
.footer-brand:hover{color:var(--c-accent);text-decoration:none}
.footer-brand .brand-mark{background:var(--c-accent)}
.footer-text{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--c-accent);text-decoration:none}
.footer-note{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);margin-bottom:10px}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0 32px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:rgba(255,255,255,.5);
}
/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .container{max-width:1200px}
}
@media (max-width:1199.98px){
  .compare-row{grid-template-columns:150px 1fr 100px;gap:18px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
}
@media (max-width:991.98px){
  :root{--sec:72px}
  .container{padding-left:24px;padding-right:24px}
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .hero{min-height:auto;padding:56px 0 64px}
  .hero .row{--bs-gutter-y:36px}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/9}
  .hero-actions{flex-direction:column}
  .hero-actions .btn-accent,
  .hero-actions .btn-ghost{width:100%}
  .metric{border-left:none;border-top:1px solid rgba(255,255,255,.10);padding:20px 0}
  .metric:first-child{border-top:none;padding-top:0}
  .compare-row{grid-template-columns:1fr;gap:10px}
  .compare-value{text-align:left}
  .join-aside{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:16.5px}
  :root{--sec:56px}
  .section-head{margin-bottom:32px}
  .numbered-strip a{padding:18px 20px;gap:14px}
  .strip-num{font-size:24px;min-width:40px}
  .compare-wrap{padding:24px 20px}
  .join-grid{padding:24px 20px}
  .faq-acc .accordion-button{font-size:16px;padding-right:34px}
  .faq-acc .accordion-body{padding-right:0}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn-accent{width:100%}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .brand-text{font-size:16px}
  .hero-h1{font-size:clamp(26px,7vw,32px)}
  .hero-trust{gap:14px;flex-direction:column}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: article */
:root{
  --c-primary:#4A2E8F;
  --c-primary-deep:#241654;
  --c-accent:#F2A93B;
  --c-cool:#12B2A6;
  --c-bg:#FAF7F2;
  --c-surface:#FFFFFF;
  --c-night:#14102B;
  --c-ink:#1A1730;
  --c-ink-2:#5B5670;
  --c-line:#E5E0D6;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(21,17,46,.05);
  --sh-2:0 14px 34px -20px rgba(36,22,84,.32);
  --sp-section:96px;
  --wrap:1200px;
  --bs-primary:#4A2E8F;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-cool);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
h1,h2,h3,h4{line-height:1.28;letter-spacing:.01em;margin:0;font-weight:700;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(74,46,143,.35);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px;}
.dot-field{
  background-color:var(--c-night);
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:24px 24px;
}
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--c-accent);color:#241654;border:0;border-radius:var(--r-btn);
  padding:13px 26px;font-size:15.5px;font-weight:600;line-height:1;
  cursor:pointer;transition:transform .16s ease,filter .16s ease,box-shadow .16s ease;
}
.btn-solid:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:var(--sh-2);color:#241654;text-decoration:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--c-primary);border:1px solid var(--c-line);
  border-radius:var(--r-btn);padding:13px 24px;font-size:15.5px;font-weight:600;line-height:1;
  transition:border-color .18s ease,background .18s ease,transform .16s ease;
}
.btn-ghost:hover{border-color:var(--c-primary);background:rgba(74,46,143,.06);transform:translateY(-1px);text-decoration:none;color:var(--c-primary);}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(250,247,242,.92);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-nav.is-scrolled{box-shadow:0 1px 0 var(--c-line),0 10px 24px -22px rgba(36,22,84,.5);background:rgba(250,247,242,.98);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:17px;}
.brand:hover{color:var(--c-ink);text-decoration:none;}
.brand-mark{
  width:12px;height:12px;border-radius:50%;
  background:var(--c-accent);
  box-shadow:0 0 0 4px rgba(242,169,59,.18);
  flex:0 0 auto;
}
.brand-text{white-space:nowrap;}
.nav-desktop{display:flex;align-items:center;gap:32px;}
.nav-links{display:flex;align-items:center;gap:32px;}
.nav-links a{
  position:relative;color:var(--c-ink);font-size:15px;padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-accent);opacity:0;transition:opacity .16s ease;
}
.nav-links a:hover{color:var(--c-primary);text-decoration:none;}
.nav-links a:hover::after{opacity:.6;}
.nav-links a.active{color:var(--c-primary);}
.nav-links a.active::after{opacity:1;}
.nav-cta{
  font-size:15px;font-weight:600;color:var(--c-primary);
  border-bottom:2px solid transparent;padding-bottom:4px;transition:border-color .18s ease,color .18s ease;
}
.nav-cta:hover{color:var(--c-primary-deep);border-bottom-color:var(--c-accent);text-decoration:none;}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--c-line);border-radius:8px;
  width:40px;height:40px;align-items:center;justify-content:center;color:var(--c-ink);
}
.nav-toggle svg{width:18px;height:18px;}
.mobile-nav{background:var(--c-surface);}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px;}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:700;}
.mobile-nav .offcanvas-body{padding:12px 20px 32px;}
.mobile-links li + li{border-top:1px solid var(--c-line);}
.mobile-links a{
  display:block;padding:14px 12px;font-size:20px;line-height:2.4;color:var(--c-ink);
  border-left:3px solid transparent;
}
.mobile-links a:hover,.mobile-links a.active{color:var(--c-primary);border-left-color:var(--c-accent);text-decoration:none;}
.mobile-cta{display:block;margin-top:22px;text-align:center;}

/* ---------- 文章头部 ---------- */
.article-head{padding:56px 0 40px;border-bottom:1px solid var(--c-line);}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-ink-2);margin-bottom:22px;}
.breadcrumb-list li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb-list a{color:var(--c-ink-2);}
.breadcrumb-list a:hover{color:var(--c-primary);}
.breadcrumb-list [aria-current]{color:var(--c-ink);font-weight:600;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(74,46,143,.08);color:var(--c-primary);
  border-radius:999px;padding:5px 14px;font-size:12px;font-weight:600;letter-spacing:.04em;
}
.article-title{font-size:46px;line-height:1.24;margin:18px 0 20px;max-width:900px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:var(--c-ink-2);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);display:inline-block;}
.meta-status{color:var(--c-cool);font-weight:600;}

/* ---------- 正文布局 ---------- */
.article-wrap{padding:64px 0 var(--sp-section);}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 262px;gap:64px;justify-content:center;align-items:start;
}
.article-body{min-width:0;max-width:760px;font-size:17px;line-height:1.9;color:var(--c-ink);}
.article-body p{margin-bottom:1em;}
.article-body h2{
  position:relative;font-size:30px;margin:52px 0 20px;padding-left:16px;line-height:1.32;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.12em;width:3px;background:var(--c-accent);border-radius:2px;
}
.article-body h3{font-size:21px;margin:36px 0 14px;color:var(--c-primary-deep);}
.article-body h4{font-size:18px;margin:28px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:4px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.6em;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.article-body ol{counter-reset:artlist;}
.article-body ol li{counter-increment:artlist;}
.article-body ol li::before{
  content:counter(artlist,decimal-leading-zero);
  position:absolute;left:0;top:0;color:var(--c-accent);font-weight:700;font-size:14px;
}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;background:rgba(74,46,143,.05);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-card) var(--r-card) 0;color:var(--c-ink);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px 0 10px;box-shadow:var(--sh-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--c-ink-2);text-align:center;padding-top:6px;}
.article-body a{font-weight:600;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left;}
.article-body th{background:rgba(74,46,143,.06);color:var(--c-primary-deep);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:40px 0;}
.article-body strong{color:var(--c-primary-deep);}

.empty-state{
  border:1px solid var(--c-line);background:var(--c-surface);border-radius:var(--r-card);
  padding:48px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state .empty-mark{
  width:46px;height:46px;border-radius:50%;background:rgba(74,46,143,.08);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;color:var(--c-primary);
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--c-ink-2);font-size:15.5px;}

/* ---------- 侧栏 ---------- */
.article-aside{position:sticky;top:104px;border-top:1px solid var(--c-line);padding-top:22px;}
.aside-title{font-size:13px;letter-spacing:.14em;color:var(--c-ink-2);font-weight:600;margin-bottom:14px;text-transform:uppercase;}
.aside-links li{border-bottom:1px solid var(--c-line);}
.aside-links a{display:block;padding:11px 2px;font-size:14.5px;color:var(--c-ink);}
.aside-links a:hover{color:var(--c-primary);text-decoration:none;padding-left:6px;transition:padding .18s ease;}
.aside-note{font-size:13.5px;color:var(--c-ink-2);line-height:1.8;margin-top:18px;}
.aside-block + .aside-block{margin-top:34px;}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:48px;padding-top:26px;border-top:1px solid var(--c-line);}
.tag-row .tag-label{font-size:13.5px;color:var(--c-ink-2);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;border:1px solid var(--c-line);border-radius:999px;
  padding:6px 14px;font-size:13px;color:var(--c-ink-2);background:var(--c-surface);
  transition:border-color .18s ease,color .18s ease;
}
.tag:hover{border-color:var(--c-accent);color:var(--c-primary);text-decoration:none;}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 var(--sp-section);}
.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;}
.section-head .section-sub{font-size:15px;color:var(--c-ink-2);margin:8px 0 0;}
.head-link{font-size:15px;font-weight:600;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.post-card{
  position:relative;display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.post-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;z-index:2;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.post-card:hover::before{transform:scaleX(1);}
.post-card a{color:inherit;display:block;}
.post-card a:hover{text-decoration:none;color:inherit;}
.post-thumb{aspect-ratio:16/9;overflow:hidden;border-radius:0;}
.post-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;}
.post-cat{align-self:flex-start;background:rgba(74,46,143,.08);color:var(--c-primary);border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;}
.post-body h3{font-size:20px;line-height:1.42;}
.post-body p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;margin:0;}
.post-foot{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-2);margin-top:4px;}
.post-foot .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);}

/* ---------- 返回入口条 ---------- */
.back-strip{
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  padding:28px 0;margin-bottom:var(--sp-section);
}
.back-strip .strip-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.back-strip p{margin:0;font-size:15px;color:var(--c-ink-2);}
.strip-links{display:flex;gap:22px;flex-wrap:wrap;font-size:15px;font-weight:600;}

/* ---------- CTA 带 ---------- */
.cta-band{padding:64px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-band h2{font-size:30px;color:#fff;margin:0 0 10px;}
.cta-band p{color:rgba(255,255,255,.72);margin:0;font-size:15.5px;max-width:560px;}

/* ---------- 页脚 ---------- */
.site-footer{padding:72px 0 34px;color:rgba(255,255,255,.72);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-brand:hover{color:var(--c-accent);text-decoration:none;}
.footer-text{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px;}
.footer-title{font-size:14px;color:#fff;letter-spacing:.08em;margin-bottom:16px;}
.footer-links li + li{margin-top:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-links a:hover{color:var(--c-accent);text-decoration:none;}
.footer-note{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.6);margin-bottom:10px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.55);
}

@media (min-width:1400px){
  :root{--wrap:1240px;}
  .article-title{font-size:50px;}
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,760px);gap:0;}
  .article-aside{position:static;margin-top:48px;top:auto;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  :root{--sp-section:72px;}
  .nav-desktop{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-title{font-size:36px;}
  .article-head{padding:40px 0 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 24px;}
  .article-wrap{padding:44px 0 var(--sp-section);}
  .article-title{font-size:31px;}
  .article-body h2{font-size:24px;margin-top:42px;}
  .article-body h3{font-size:19px;}
  .section-head h2{font-size:25px;}
  .cta-band h2{font-size:24px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .back-strip .strip-inner{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:575px){
  :root{--sp-section:56px;}
  .container{padding:0 16px;}
  .brand-text{font-size:16px;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .article-title{font-size:28px;}
  .article-body{font-size:16.5px;}
  .btn-solid,.btn-ghost{width:100%;}
  .article-meta{font-size:13px;gap:10px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#4A2E8F;
  --c-primary-deep:#241654;
  --c-accent:#F2A93B;
  --c-cool:#12B2A6;
  --c-bg:#FAF7F2;
  --c-surface:#FFFFFF;
  --c-night:#14102B;
  --c-ink:#1A1730;
  --c-ink-2:#5B5670;
  --c-line:#E5E0D6;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(21,17,46,.05);
  --sh-2:0 14px 34px -20px rgba(36,22,84,.32);
  --sec-gap:96px;
  --bs-primary:#4A2E8F;
  --bs-body-color:#1A1730;
  --bs-body-bg:#FAF7F2;
  --bs-border-color:#E5E0D6;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  text-align:left;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--c-cool)}
h1,h2,h3{line-height:1.28;margin:0 0 .6em;font-weight:700;letter-spacing:.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec-gap) 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-primary);font-weight:700;margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
h2.section-title{font-size:32px;margin-bottom:14px}
.section-sub{color:var(--c-ink-2);font-size:16.5px;margin:0}
.dot-field{
  background-color:var(--c-night);
  background-image:radial-gradient(rgba(242,169,59,.14) 1px, transparent 1px);
  background-size:24px 24px;
  background-position:0 0;
  color:#F4F1FB;
}
/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-line);
  transition:background .2s ease, box-shadow .2s ease;
}
.site-nav.is-scrolled{background:rgba(250,247,242,.94);box-shadow:0 1px 0 var(--c-line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:18px}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:16px;height:16px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%, var(--c-accent) 0 30%, var(--c-primary) 32% 100%);
  box-shadow:0 0 0 1px rgba(74,46,143,.25);
}
.brand-text{white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:32px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{
  position:relative;font-size:15px;color:var(--c-ink);padding:4px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--c-accent);opacity:0;transform:scaleX(.6);
  transition:opacity .16s ease, transform .16s ease;
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after,.nav-links a.active::after{opacity:1;transform:scaleX(1)}
.nav-links a.active{color:var(--c-ink);font-weight:600}
.nav-cta{
  font-size:15px;color:var(--c-ink);border-bottom:1px solid var(--c-ink);
  padding-bottom:2px;
}
.nav-cta:hover{color:var(--c-primary);border-color:var(--c-primary)}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--c-line);border-radius:10px;
  width:42px;height:42px;align-items:center;justify-content:center;color:var(--c-ink);
}
.nav-toggle svg{width:18px;height:18px}
.offcanvas.mobile-nav{background:#fff;color:var(--c-ink);width:min(88vw,380px)}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 22px}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:700}
.mobile-nav .offcanvas-body{padding:18px 22px}
.mobile-nav ul li{border-bottom:1px solid var(--c-line)}
.mobile-nav ul li a{
  display:block;font-size:20px;line-height:2.4;color:var(--c-ink);
  padding-left:14px;border-left:3px solid transparent;
}
.mobile-nav ul li a.active{border-left-color:var(--c-accent);font-weight:700}
.mobile-nav .mobile-cta{
  display:block;margin-top:22px;text-align:center;
  background:var(--c-accent);color:var(--c-ink);font-weight:700;
  border-radius:10px;padding:12px;font-size:16px;
}
/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:16px;font-weight:600;
  padding:13px 26px;cursor:pointer;transition:all .16s ease;border:1px solid transparent;
}
.btn-main{background:var(--c-accent);color:#20143F;border-color:var(--c-accent)}
.btn-main:hover{filter:brightness(.94);transform:translateY(-1px);color:#20143F}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);background:rgba(74,46,143,.06);color:var(--c-primary)}
.btn-main:focus-visible,.btn-ghost:focus-visible,a:focus-visible,button:focus-visible{
  outline:3px solid rgba(74,46,143,.35);outline-offset:2px;
}
.text-link{
  font-weight:600;font-size:15px;border-bottom:2px solid transparent;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;
  text-decoration-color:rgba(74,46,143,.25);
}
.text-link:hover{text-decoration-color:var(--c-cool);color:var(--c-cool)}
/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:38vh;padding:72px 0 64px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.cat-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cat-hero h1{font-size:46px;color:#fff;margin-bottom:16px}
.cat-hero .lead{color:rgba(244,241,251,.78);font-size:17.5px;max-width:520px;margin-bottom:0}
.cat-hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(255,255,255,.12)}
.cat-hero-media img{width:100%;height:280px;object-fit:cover}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;background:rgba(74,46,143,.34);
}
.crumbs{display:flex;flex-wrap:wrap;gap:10px;font-size:13.5px;color:rgba(244,241,251,.62);margin-bottom:20px}
.crumbs li{display:inline-flex;align-items:center;gap:10px}
.crumbs li+li::before{content:"/";color:rgba(244,241,251,.35)}
.crumbs a{color:rgba(244,241,251,.82)}
.crumbs a:hover{color:var(--c-accent)}
/* ---------- 编号步骤 ---------- */
.step-list{display:grid;gap:0;border-top:1px solid var(--c-line)}
.step-item{
  display:grid;grid-template-columns:96px 1fr;gap:28px;align-items:start;
  padding:30px 0;border-bottom:1px solid var(--c-line);
}
.step-no{
  font-size:44px;font-weight:700;line-height:1;color:rgba(74,46,143,.22);
  font-variant-numeric:tabular-nums;padding-top:4px;
}
.step-body h3{font-size:21px;margin-bottom:8px}
.step-body p{color:var(--c-ink-2);margin:0;font-size:16px}
.step-tag{
  display:inline-block;margin-left:10px;font-size:12px;font-weight:600;
  color:var(--c-primary);background:rgba(74,46,143,.08);
  border:1px solid rgba(74,46,143,.16);border-radius:999px;padding:1px 10px;
  vertical-align:middle;
}
/* ---------- 信息卡 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.info-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease, box-shadow .18s ease;
}
.info-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.info-card:hover::before{transform:scaleX(1)}
.info-card img{width:100%;height:180px;object-fit:cover;border-radius:0}
.info-card-body{padding:24px 26px 28px}
.info-card-body h3{font-size:20px;margin-bottom:10px}
.info-card-body p{color:var(--c-ink-2);font-size:15.5px;margin-bottom:14px}
.pill-list{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  font-size:12px;color:var(--c-ink-2);border:1px solid var(--c-line);
  border-radius:999px;padding:3px 12px;background:#FCFAF6;
}
.pill.cool{color:#0C7C74;border-color:rgba(18,178,166,.35);background:rgba(18,178,166,.07)}
/* ---------- 深色核对面板 ---------- */
.panel{
  border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.panel h2{color:#fff;font-size:30px;margin-bottom:14px}
.panel p{color:rgba(244,241,251,.74);font-size:16px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.14);
  color:rgba(244,241,251,.88);font-size:16px;
}
.check-list li:last-child{border-bottom:0}
.check-list .dot{
  flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:5px;
  border:1px solid rgba(242,169,59,.6);position:relative;
}
.check-list .dot::after{
  content:"";position:absolute;left:4px;top:4px;width:8px;height:8px;
  border-radius:2px;background:var(--c-accent);opacity:.75;
}
.state-row{display:grid;gap:18px;margin-top:26px}
.state-item{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:18px 20px}
.state-item .state-top{display:flex;justify-content:space-between;font-size:14px;color:rgba(244,241,251,.72);margin-bottom:10px}
.state-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden}
.state-bar span{display:block;height:100%;background:var(--c-accent);border-radius:999px}
.state-bar.cool span{background:var(--c-cool)}
/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line)}
.accordion-item:first-child{border-top:1px solid var(--c-line)}
.accordion-button{
  background:transparent;box-shadow:none;color:var(--c-ink);
  font-size:17px;font-weight:600;padding:22px 0 22px 16px;border-radius:0;
}
.accordion-button:not(.collapsed){background:transparent;color:var(--c-primary);box-shadow:none}
.accordion-button::after{
  content:"";width:12px;height:12px;margin-left:auto;background:none;
  border-right:1.5px solid var(--c-primary);border-bottom:1.5px solid var(--c-primary);
  transform:rotate(45deg);transition:transform .2s ease;flex:0 0 auto;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(225deg);background:none;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  background:var(--c-accent);opacity:0;transition:opacity .2s ease;
}
.accordion-button:not(.collapsed)::before{opacity:1}
.accordion-button{position:relative}
.accordion-button:focus{box-shadow:none;outline:3px solid rgba(74,46,143,.28);outline-offset:-2px}
.accordion-body{
  padding:0 0 22px 16px;font-size:15.5px;line-height:1.9;color:var(--c-ink-2);
}
/* ---------- CTA 带 ---------- */
.cta-band{padding:72px 0}
.cta-inner{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}
.cta-inner h2{color:#fff;font-size:30px;margin-bottom:10px}
.cta-inner p{color:rgba(244,241,251,.74);margin:0;font-size:16.5px}
/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;padding:80px 0 32px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.footer-brand:hover{color:var(--c-accent)}
.footer-text{color:rgba(244,241,251,.66);font-size:14px;line-height:1.9;max-width:320px}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(244,241,251,.72);font-size:14px}
.footer-links a:hover{color:var(--c-accent)}
.footer-note{color:rgba(244,241,251,.6);font-size:13.5px;line-height:1.85;margin-bottom:10px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:rgba(244,241,251,.55);font-size:13px;
}
/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .container{max-width:1240px}
}
@media (max-width:1199.98px){
  .cat-hero h1{font-size:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:991.98px){
  :root{--sec-gap:64px}
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .cat-hero{padding:48px 0 52px;min-height:auto}
  .cat-hero-media img{height:220px}
  .panel-grid{grid-template-columns:1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .card-grid{gap:24px}
}
@media (max-width:767.98px){
  .container{padding:0 24px}
  h2.section-title{font-size:26px}
  .cat-hero h1{font-size:34px}
  .section{padding:56px 0}
  .step-item{grid-template-columns:64px 1fr;gap:18px;padding:24px 0}
  .step-no{font-size:34px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  body{font-size:16.5px}
  .cat-hero h1{font-size:30px}
  h2.section-title{font-size:24px}
  .btn-main,.btn-ghost{width:100%}
  .cat-hero-media img{height:180px}
  .info-card img{height:160px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --c-primary:#4A2E8F;
  --c-primary-deep:#241654;
  --c-accent:#F2A93B;
  --c-cool:#12B2A6;
  --c-bg:#FAF7F2;
  --c-surface:#FFFFFF;
  --c-night:#14102B;
  --c-ink:#1A1730;
  --c-ink-2:#5B5670;
  --c-line:#E5E0D6;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(21,17,46,.05);
  --sh-2:0 14px 34px -20px rgba(36,22,84,.32);
  --sp:96px;
  --bs-primary:#4A2E8F;
  --bs-link-color:#4A2E8F;
  --bs-link-hover-color:#12B2A6;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease,text-underline-offset .16s ease}
a:hover{color:var(--c-cool);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.28;letter-spacing:.01em;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(74,46,143,.35);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sp) 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{font-size:32px;margin-bottom:12px}
.section-head p{color:var(--c-ink-2);font-size:16.5px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;font-weight:600}
.line-sep{height:1px;background:var(--c-line);border:0;margin:0}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(250,247,242,.86);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-nav.scrolled{background:rgba(250,247,242,.97);box-shadow:0 1px 0 var(--c-line),0 6px 18px -14px rgba(36,22,84,.4)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:17px}
.brand:hover{color:var(--c-ink);text-decoration:none}
.brand-mark{width:14px;height:14px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(242,169,59,.18);flex:none}
.brand-text{white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:32px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{
  position:relative;color:var(--c-ink);font-size:15px;padding:6px 0;text-decoration:none;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform .16s ease;
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-block;font-size:14px;font-weight:600;color:var(--c-ink);
  border-bottom:2px solid var(--c-accent);padding-bottom:3px;line-height:1.4;
}
.nav-cta:hover{color:var(--c-primary);text-decoration:none;border-bottom-color:var(--c-primary)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);color:var(--c-ink);align-items:center;justify-content:center;
}
.nav-toggle svg{width:18px;height:18px}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.mobile-nav{background:var(--c-surface);width:min(420px,100%)}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 22px}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:700}
.mobile-nav .offcanvas-body{padding:14px 22px 32px}
.mobile-links li a{
  display:block;font-size:20px;line-height:2.4;color:var(--c-ink);border-bottom:1px solid var(--c-line);
  padding-left:0;text-decoration:none;
}
.mobile-links li a.active{color:var(--c-primary);font-weight:700;border-left:3px solid var(--c-accent);padding-left:14px}
.mobile-links li a:hover{color:var(--c-primary)}
.mobile-cta{
  display:block;margin-top:26px;text-align:center;background:var(--c-accent);color:#2A2007;
  font-weight:700;font-size:16px;padding:13px 20px;border-radius:var(--r-btn);
}
.mobile-cta:hover{color:#2A2007;text-decoration:none;filter:brightness(.94)}

/* ---------- 深色区通用 ---------- */
.dot-field{
  position:relative;
  background-color:var(--c-night);
  background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:24px 24px;
  color:#F4F2FF;
}
.dot-field h1,.dot-field h2,.dot-field h3{color:#FFFFFF}

/* ---------- 深色标题带 ---------- */
.data-hero{padding:64px 0 56px;border-bottom:1px solid rgba(255,255,255,.10)}
.data-hero .crumbs{font-size:13px;color:rgba(244,242,255,.62);margin-bottom:20px}
.data-hero .crumbs ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.data-hero .crumbs li{display:inline-flex;align-items:center;gap:8px}
.data-hero .crumbs li+li::before{content:"/";color:rgba(244,242,255,.34)}
.data-hero .crumbs a{color:rgba(244,242,255,.78)}
.data-hero .crumbs a:hover{color:var(--c-accent);text-decoration:none}
.data-hero h1{font-size:46px;margin-bottom:14px;max-width:900px}
.data-hero .lede{font-size:17px;color:rgba(244,242,255,.76);max-width:720px;margin-bottom:0}
.data-hero .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-block;font-size:12px;line-height:1;padding:7px 12px;border-radius:999px;
  background:rgba(242,169,59,.14);border:1px solid rgba(242,169,59,.42);color:#FFD79A;
}
.tag.cool{background:rgba(18,178,166,.14);border-color:rgba(18,178,166,.42);color:#8FE3DC}

/* ---------- 指标带 ---------- */
.metric-band{padding:0 0 var(--sp)}
.metric-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.10);
  border-bottom:1px solid rgba(255,255,255,.10);
  margin-top:-1px;
}
.metric{padding:34px 28px;border-left:1px solid rgba(255,255,255,.10)}
.metric:first-child{border-left:0}
.metric .value{font-size:44px;font-weight:600;line-height:1.1;color:var(--c-accent);margin-bottom:8px}
.metric .label{font-size:15px;color:#FFFFFF;font-weight:600;margin-bottom:6px}
.metric .foot{font-size:12px;color:rgba(244,242,255,.56);line-height:1.7}

/* ---------- 双列说明卡 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease;
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:21px;margin-bottom:12px}
.card p{color:var(--c-ink-2);font-size:16px}
.card .card-figure{margin:-32px -32px 24px;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0}
.card .card-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .3s ease}
.card:hover .card-figure img{transform:scale(1.03)}
.point-list{margin-top:18px;border-top:1px solid var(--c-line);padding-top:18px}
.point-list li{position:relative;padding-left:20px;font-size:15.5px;color:var(--c-ink-2);margin-bottom:10px}
.point-list li:last-child{margin-bottom:0}
.point-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ---------- 对比条 ---------- */
.compare-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:34px;box-shadow:var(--sh-1)}
.compare-legend{display:flex;flex-wrap:wrap;gap:22px;margin-bottom:26px;font-size:13.5px;color:var(--c-ink-2)}
.compare-legend span{display:inline-flex;align-items:center;gap:8px}
.legend-dot{width:22px;height:8px;border-radius:999px;display:inline-block}
.legend-dot.old{background:var(--c-line)}
.legend-dot.new{background:var(--c-primary)}
.compare-row{
  display:grid;grid-template-columns:180px 1fr 96px;align-items:center;gap:24px;
  padding:20px 0;border-top:1px solid var(--c-line);
}
.compare-row:first-of-type{border-top:0}
.compare-name{font-weight:600;font-size:16px}
.compare-name small{display:block;font-weight:400;font-size:12.5px;color:var(--c-ink-2);margin-top:2px}
.compare-bars{display:grid;gap:10px}
.bar-track{height:8px;border-radius:999px;background:rgba(74,46,143,.06);overflow:hidden}
.bar{display:block;height:100%;border-radius:999px}
.bar.old{background:var(--c-line)}
.bar.new{background:var(--c-primary)}
.compare-value{text-align:right;font-size:16px;font-weight:600;color:var(--c-primary)}

/* ---------- 范围卡片 ---------- */
.scope-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.scope-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);position:relative;transition:transform .18s ease,box-shadow .18s ease;
}
.scope-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;z-index:2;
}
.scope-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.scope-card:hover::before{transform:scaleX(1)}
.scope-card .thumb{aspect-ratio:16/9;overflow:hidden}
.scope-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.scope-card:hover .thumb img{transform:scale(1.03)}
.scope-body{padding:26px}
.scope-body h3{font-size:20px;margin-bottom:10px}
.scope-body p{color:var(--c-ink-2);font-size:15.5px;margin-bottom:0}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.badge-soft{
  display:inline-block;font-size:12px;line-height:1;padding:6px 10px;border-radius:999px;
  background:rgba(74,46,143,.08);color:var(--c-primary);border:1px solid rgba(74,46,143,.16);
}
.badge-soft.cool{background:rgba(18,178,166,.10);color:#0C7C74;border-color:rgba(18,178,166,.28)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.accordion-item{background:transparent;border:0;border-top:1px solid var(--c-line)}
.accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.accordion-button{
  background:transparent;border:0;box-shadow:none;color:var(--c-ink);
  font-size:17px;font-weight:600;line-height:1.6;padding:22px 44px 22px 0;position:relative;
}
.accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:-16px;top:22px;bottom:22px;width:3px;background:var(--c-accent);border-radius:2px;
}
.accordion-button::after{
  content:"";position:absolute;right:6px;top:50%;width:14px;height:14px;margin:0;transform:translateY(-50%);
  background:none;border-left:1.5px solid var(--c-ink-2);border-bottom:1.5px solid var(--c-ink-2);
}
.accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(-45deg);border-color:var(--c-primary)}
.accordion-button:focus{box-shadow:none;outline:none}
.accordion-button:focus-visible{outline:3px solid rgba(74,46,143,.35)}
.accordion-body{padding:0 40px 20px 0;font-size:15.5px;line-height:1.9;color:var(--c-ink-2)}

/* ---------- CTA 带 ---------- */
.cta-band{padding:72px 0}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
  border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);padding:44px;
}
.cta-inner h2{font-size:28px;margin-bottom:10px}
.cta-inner p{color:rgba(244,242,255,.74);margin-bottom:0;max-width:640px;font-size:16px}
.btn-main{
  display:inline-block;background:var(--c-accent);color:#2A2007;font-weight:700;font-size:15.5px;
  padding:13px 28px;border-radius:var(--r-btn);border:1px solid transparent;white-space:nowrap;
  transition:transform .16s ease,filter .16s ease;
}
.btn-main:hover{color:#2A2007;text-decoration:none;filter:brightness(.94);transform:translateY(-1px)}
.btn-ghost{
  display:inline-block;background:transparent;color:#FFFFFF;font-weight:600;font-size:15.5px;
  padding:12px 26px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.3);
  transition:border-color .16s ease,background .16s ease,color .16s ease;
}
.btn-ghost:hover{color:#FFFFFF;text-decoration:none;border-color:var(--c-accent);background:rgba(242,169,59,.10)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{padding:72px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:36px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#FFFFFF;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-brand:hover{color:var(--c-accent);text-decoration:none}
.footer-text{font-size:14px;color:rgba(244,242,255,.66);line-height:1.9;max-width:340px}
.footer-title{font-size:15px;color:#FFFFFF;margin-bottom:16px;font-weight:700}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:rgba(244,242,255,.72)}
.footer-links a:hover{color:var(--c-accent);text-decoration:none}
.footer-note{font-size:13.5px;color:rgba(244,242,255,.6);line-height:1.85;margin-bottom:12px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(244,242,255,.5);
}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .container{max-width:1240px}
  .data-hero h1{font-size:50px}
}
@media (max-width:1199.98px){
  :root{--sp:80px}
  .data-hero h1{font-size:40px}
  .metric .value{font-size:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  :root{--sp:64px}
  .container{padding:0 24px}
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .metric{padding:28px 22px;border-left:1px solid rgba(255,255,255,.10);border-top:1px solid rgba(255,255,255,.10)}
  .metric:nth-child(odd){border-left:0}
  .metric:nth-child(-n+2){border-top:0}
  .spec-grid{grid-template-columns:1fr}
  .scope-grid{grid-template-columns:repeat(2,1fr)}
  .compare-row{grid-template-columns:150px 1fr 80px;gap:18px}
  .cta-inner{padding:34px}
}
@media (max-width:767.98px){
  :root{--sp:56px}
  body{font-size:16.5px}
  .section-head h2{font-size:26px}
  .data-hero{padding:48px 0 42px}
  .data-hero h1{font-size:32px}
  .data-hero .lede{font-size:16px}
  .scope-grid{grid-template-columns:1fr}
  .compare-wrap{padding:24px}
  .compare-row{grid-template-columns:1fr;gap:12px;padding:18px 0}
  .compare-value{text-align:left}
  .card{padding:26px}
  .card .card-figure{margin:-26px -26px 20px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:28px}
  .btn-row{width:100%}
  .btn-row .btn-main,.btn-row .btn-ghost{width:100%;text-align:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .metric-grid{grid-template-columns:1fr}
  .metric{border-left:0!important;border-top:1px solid rgba(255,255,255,.10)!important}
  .metric:first-child{border-top:0!important}
  .metric .value{font-size:36px}
  .data-hero h1{font-size:30px}
  .section-head h2{font-size:24px}
  .accordion-button{font-size:16px;padding-right:34px}
  .accordion-button:not(.collapsed)::before{left:-10px}
}

/* roulang page: category3 */
:root{
  --c-primary:#4A2E8F;
  --c-primary-deep:#241654;
  --c-accent:#F2A93B;
  --c-cool:#12B2A6;
  --c-bg:#FAF7F2;
  --c-surface:#FFFFFF;
  --c-night:#14102B;
  --c-ink:#1A1730;
  --c-ink-2:#5B5670;
  --c-line:#E5E0D6;
  --c-soft:#F1ECFB;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-rest:0 1px 2px rgba(21,17,46,.05);
  --sh-hover:0 14px 34px -20px rgba(36,22,84,.32);
  --sec-y:96px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --bs-primary:#4A2E8F;
  --bs-primary-rgb:74,46,143;
  --bs-body-font-family:var(--font);
  --bs-link-color:var(--c-primary);
  --bs-link-hover-color:var(--c-cool);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:4px;transition:color .16s ease,opacity .16s ease}
a:hover{color:var(--c-cool);text-decoration:underline;text-decoration-thickness:2px}
h1,h2,h3,h4{line-height:1.28;margin:0 0 .6em;font-weight:700;letter-spacing:.01em}
h1{font-size:46px}
h2{font-size:32px}
h3{font-size:21px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(74,46,143,.35);
  outline-offset:2px;
  border-radius:var(--r-btn);
}
.container{max-width:1200px;padding:0 32px;margin:0 auto}
.dot-field{
  background-color:var(--c-night);
  background-image:radial-gradient(circle,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:24px 24px;
}
/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(250,247,242,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .18s ease,background .18s ease;
}
.site-nav.is-scrolled{box-shadow:0 1px 0 var(--c-line);backdrop-filter:saturate(140%) blur(2px)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:18px;letter-spacing:.02em;text-decoration:none}
.brand:hover{color:var(--c-ink);text-decoration:none}
.brand-mark{width:14px;height:14px;flex:0 0 14px;background:var(--c-accent);border-radius:3px;box-shadow:0 0 0 4px rgba(242,169,59,.16)}
.nav-desktop{display:flex;align-items:center;gap:32px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{
  position:relative;
  font-size:15px;color:var(--c-ink-2);text-decoration:none;
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .16s ease;
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-ink);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{
  font-size:15px;font-weight:600;color:var(--c-primary);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:9px 18px;background:var(--c-surface);text-decoration:none;
  transition:border-color .16s ease,background .16s ease,color .16s ease;
}
.nav-cta:hover{color:var(--c-primary);border-color:var(--c-primary);background:rgba(74,46,143,.06);text-decoration:none}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);color:var(--c-ink);align-items:center;justify-content:center;
}
.nav-toggle svg{width:18px;height:18px}
.offcanvas.mobile-nav{width:100%;max-width:100%;background:var(--c-surface)}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:20px 24px}
.mobile-nav .offcanvas-body{padding:12px 0 32px}
.mobile-nav .m-links a{
  display:block;font-size:20px;line-height:2.4;padding:2px 24px;color:var(--c-ink);text-decoration:none;
  border-left:3px solid transparent;
}
.mobile-nav .m-links a.active{border-left-color:var(--c-accent);font-weight:700}
.mobile-nav .m-cta{margin:20px 24px 0;display:block;text-align:center;background:var(--c-accent);color:#241654;font-weight:700;border-radius:var(--r-btn);padding:12px}
/* ---------- 通用按钮/标签 ---------- */
.btn-main,.btn-ghost{display:inline-flex;align-items:center;gap:8px;font-size:15.5px;font-weight:600;border-radius:var(--r-btn);padding:12px 22px;cursor:pointer;transition:transform .16s ease,background .16s ease,border-color .16s ease,box-shadow .16s ease}
.btn-main{background:var(--c-accent);color:#241654;border:1px solid var(--c-accent);text-decoration:none}
.btn-main:hover{background:#e59c2c;color:#241654;transform:translateY(-1px);text-decoration:none}
.btn-ghost{background:transparent;color:var(--c-ink);border:1px solid var(--c-line);text-decoration:none}
.btn-ghost:hover{border-color:var(--c-primary);background:rgba(74,46,143,.06);color:var(--c-primary);text-decoration:none}
.tag{display:inline-block;font-size:12px;line-height:1.7;padding:3px 10px;border-radius:999px;background:var(--c-soft);color:var(--c-primary);border:1px solid rgba(74,46,143,.14)}
.tag-accent{background:rgba(242,169,59,.14);color:#8a5a00;border-color:rgba(242,169,59,.35)}
.tag-cool{background:rgba(18,178,166,.12);color:#0a7a72;border-color:rgba(18,178,166,.3)}
/* ---------- Hero ---------- */
.page-hero{
  position:relative;color:#fff;padding:72px 0 64px;
  background-color:var(--c-night);
  background-image:radial-gradient(circle,rgba(255,255,255,.13) 1px,transparent 1px);
  background-size:24px 24px;
  border-bottom:1px solid rgba(255,255,255,.08);
  min-height:34vh;
  display:flex;align-items:center;
}
.page-hero .hero-inner{max-width:820px}
.crumb{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0 0 20px;font-size:13.5px;color:rgba(255,255,255,.62)}
.crumb li+li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.35)}
.crumb a{color:rgba(255,255,255,.82);text-decoration:none}
.crumb a:hover{color:var(--c-accent);text-decoration:underline}
.page-hero h1{font-size:44px;color:#fff;margin-bottom:18px}
.page-hero .hero-sub{font-size:17px;color:rgba(255,255,255,.78);margin:0;max-width:640px}
.hero-chip{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-accent);border:1px solid rgba(242,169,59,.4);border-radius:999px;padding:5px 14px;margin-bottom:22px}
/* ---------- 区块 ---------- */
.section{padding:var(--sec-y) 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{margin-bottom:14px}
.section-lead{color:var(--c-ink-2);margin:0;font-size:17px}
.eyebrow{font-size:13.5px;color:var(--c-primary);font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px;display:block}
.divider{height:1px;background:var(--c-line);border:0;margin:0}
/* ---------- 对照版式 ---------- */
.cmp-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start}
.cmp-side{position:sticky;top:104px}
.cmp-side-title{font-size:13px;letter-spacing:.08em;color:var(--c-ink-2);text-transform:uppercase;margin-bottom:14px}
.cmp-side ul{display:flex;flex-direction:column}
.cmp-side li+li{border-top:1px solid var(--c-line)}
.cmp-side a{display:block;padding:13px 0;font-size:14.5px;color:var(--c-ink-2);text-decoration:none;border-left:3px solid transparent;padding-left:12px}
.cmp-side a:hover{color:var(--c-primary);background:rgba(74,46,143,.04)}
.cmp-side a.is-active{color:var(--c-primary);border-left-color:var(--c-accent);font-weight:600}
.cmp-side-note{margin-top:24px;padding-top:20px;border-top:1px solid var(--c-line);font-size:13.5px;color:var(--c-ink-2);line-height:1.8}
.cmp-block{margin-bottom:64px;scroll-margin-top:100px}
.cmp-block:last-child{margin-bottom:0}
.cmp-block h2{font-size:26px;margin-bottom:12px}
.cmp-block .block-lead{color:var(--c-ink-2);margin-bottom:26px;font-size:16.5px}
/* 标签表 */
.cmp-table{border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;background:var(--c-surface);box-shadow:var(--sh-rest)}
.cmp-table-head,.cmp-table-row{display:grid;grid-template-columns:1.1fr 1.3fr 1.3fr 1.2fr}
.cmp-table-head{background:var(--c-soft);font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:.04em}
.cmp-table-head>div{padding:14px 18px}
.cmp-table-row{border-top:1px solid var(--c-line)}
.cmp-table-row>div{padding:18px;font-size:15px;color:var(--c-ink-2);border-left:1px solid var(--c-line)}
.cmp-table-row>div:first-child{border-left:0;color:var(--c-ink);font-weight:600}
.cmp-table-row .cell-label{display:none}
.cmp-table-row:hover{background:rgba(74,46,143,.03)}
/* 入口对照卡 */
.entry-compare{display:grid;gap:20px}
.entry-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh-rest);position:relative;
  transition:transform .18s ease,box-shadow .18s ease;
}
.entry-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c-primary);
  border-radius:var(--r-card) var(--r-card) 0 0;transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.entry-card:hover::before{transform:scaleX(1)}
.entry-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:8px}
.entry-top h3{margin:0;font-size:20px}
.entry-desc{color:var(--c-ink-2);font-size:15.5px;margin:0 0 20px}
.entry-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;border-top:1px solid var(--c-line);padding-top:18px}
.field-k{display:block;font-size:12px;letter-spacing:.06em;color:var(--c-ink-2);margin-bottom:6px}
.field-v{font-size:15px;color:var(--c-ink);line-height:1.7}
/* 状态条 */
.bar{height:8px;border-radius:999px;background:var(--c-line);position:relative;overflow:hidden}
.bar span{position:absolute;left:0;top:0;bottom:0;border-radius:999px;background:var(--c-primary)}
.bar.gold span{background:var(--c-accent)}
.bar.cool span{background:var(--c-cool)}
.entry-media{display:grid;grid-template-columns:320px minmax(0,1fr);gap:28px;align-items:center;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-rest)}
.entry-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img)}
.entry-media h3{margin-bottom:10px}
.entry-media ul li{position:relative;padding-left:20px;margin-bottom:10px;color:var(--c-ink-2);font-size:15.5px}
.entry-media ul li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--c-accent)}
/* 建议条 */
.advice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.advice-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-rest);transition:transform .18s ease,box-shadow .18s ease}
.advice-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.advice-num{font-size:34px;font-weight:700;color:rgba(74,46,143,.22);letter-spacing:.02em;display:block;margin-bottom:10px}
.advice-card h3{font-size:19px;margin-bottom:10px}
.advice-card p{margin:0;color:var(--c-ink-2);font-size:15.5px}
/* FAQ */
.faq-wrap{max-width:860px}
.accordion-item{border:0;border-top:1px solid var(--c-line);background:transparent}
.accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.accordion-button{
  background:transparent;box-shadow:none;border-left:3px solid transparent;
  font-size:17px;font-weight:600;color:var(--c-ink);padding:20px 44px 20px 16px;line-height:1.6;
}
.accordion-button:not(.collapsed){color:var(--c-primary);border-left-color:var(--c-accent);background:rgba(74,46,143,.03)}
.accordion-button:focus{box-shadow:none}
.accordion-button::after{
  background-image:none;content:"+";
  font-size:22px;line-height:1;color:var(--c-ink-2);width:auto;height:auto;
  transform:none;transform-origin:center;position:absolute;right:16px;
}
.accordion-button:not(.collapsed)::after{content:"−";color:var(--c-accent)}
.accordion-body{padding:0 44px 22px 16px;font-size:15.5px;line-height:1.9;color:var(--c-ink-2)}
/* CTA */
.cta-band{color:#fff;padding:72px 0;background-color:var(--c-primary-deep);background-image:radial-gradient(circle,rgba(255,255,255,.13) 1px,transparent 1px);background-size:24px 24px}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:30px;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.76);margin:0;max-width:620px;font-size:16px}
/* 表单 */
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-rest)}
.form-card h3{font-size:22px;margin-bottom:8px}
.form-card .form-note{color:var(--c-ink-2);font-size:14.5px;margin-bottom:24px}
.form-label{font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.form-control,.form-select{
  height:46px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  font-size:15.5px;color:var(--c-ink);background:#fff;
}
textarea.form-control{height:auto;min-height:112px;line-height:1.8;padding-top:10px}
.form-control:focus,.form-select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,46,143,.14)}
.form-check-input{width:18px;height:18px;margin-top:.35em;border-color:var(--c-line)}
.form-check-input:checked{background-color:var(--c-primary);border-color:var(--c-primary)}
.form-check-label{font-size:14.5px;color:var(--c-ink-2)}
.form-card .btn-main{width:100%;justify-content:center;margin-top:6px}
/* 页脚 */
.site-footer{color:rgba(255,255,255,.8);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;text-decoration:none;margin-bottom:16px}
.footer-brand:hover{color:#fff;text-decoration:none}
.footer-text{color:rgba(255,255,255,.62);font-size:14.5px;max-width:320px}
.footer-title{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);text-decoration:none}
.footer-links a:hover{color:var(--c-accent);text-decoration:none}
.footer-note{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:12px}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  h1{font-size:42px}
  .page-hero h1{font-size:40px}
}
@media (max-width:1199.98px){
  .cmp-layout{grid-template-columns:220px minmax(0,1fr);gap:36px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  :root{--sec-y:64px}
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .cmp-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .cmp-side{position:static;border:1px solid var(--c-line);border-radius:var(--r-card);padding:16px 20px;background:var(--c-surface)}
  .cmp-side ul{flex-direction:row;flex-wrap:wrap;gap:6px 8px}
  .cmp-side li+li{border-top:0}
  .cmp-side a{padding:6px 12px;border-left:0;border-radius:999px;background:var(--c-soft);font-size:13.5px}
  .cmp-side a.is-active{background:rgba(242,169,59,.18);border-left:0}
  .cmp-side-note{display:none}
  .entry-media{grid-template-columns:minmax(0,1fr);gap:20px}
  .advice-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  h2{font-size:26px}
  .page-hero{padding:56px 0 48px}
  .page-hero h1{font-size:34px}
  .page-hero .hero-sub{font-size:16px}
}
@media (max-width:767.98px){
  .container{padding:0 24px}
  .cmp-table{border:0;background:transparent;box-shadow:none;overflow:visible}
  .cmp-table-head{display:none}
  .cmp-table-row{
    display:block;background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--r-card);padding:18px 20px;margin-bottom:14px;box-shadow:var(--sh-rest);
  }
  .cmp-table-row>div{border-left:0;padding:0 0 14px}
  .cmp-table-row>div:last-child{padding-bottom:0}
  .cmp-table-row .cell-label{display:block;font-size:12px;letter-spacing:.06em;color:var(--c-ink-2);margin-bottom:4px}
  .cmp-table-row>div:first-child{font-size:17px}
  .entry-fields{grid-template-columns:repeat(2,minmax(0,1fr))}
  .advice-grid{grid-template-columns:minmax(0,1fr)}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .form-card{padding:24px}
}
@media (max-width:575.98px){
  :root{--sec-y:56px}
  body{font-size:16.5px}
  .container{padding:0 16px}
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:19px}
  .page-hero h1{font-size:30px}
  .brand-text{font-size:16px}
  .entry-fields{grid-template-columns:minmax(0,1fr)}
  .entry-card{padding:20px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .btn-main,.btn-ghost{width:100%;justify-content:center}
  .accordion-button{font-size:16px;padding:18px 40px 18px 14px}
  .accordion-body{padding:0 40px 20px 14px}
}

/* roulang page: category4 */
:root{
  --c-primary:#4A2E8F;
  --c-primary-deep:#241654;
  --c-accent:#F2A93B;
  --c-cool:#12B2A6;
  --c-bg:#FAF7F2;
  --c-surface:#FFFFFF;
  --c-night:#14102B;
  --c-ink:#1A1730;
  --c-ink-2:#5B5670;
  --c-line:#E5E0D6;
  --c-tint:rgba(74,46,143,.06);
  --c-tint-2:rgba(74,46,143,.12);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(21,17,46,.05);
  --sh-2:0 14px 34px -20px rgba(36,22,84,.32);
  --sp-section:96px;
  --sp-section-m:56px;
  --max:1200px;
  --bs-primary:#4A2E8F;
  --bs-primary-rgb:74,46,143;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:#1A1730;
  --bs-body-bg:#FAF7F2;
  --bs-border-color:#E5E0D6;
  --bs-link-color:#4A2E8F;
  --bs-link-hover-color:#12B2A6;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  text-align:left;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease,text-decoration-color .16s ease}
a:hover{color:var(--c-cool);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
h1,h2,h3,h4{line-height:1.28;margin:0 0 .6em;font-weight:700;letter-spacing:.01em;color:var(--c-ink)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding-left:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(74,46,143,.35);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px}
.section{padding:var(--sp-section) 0}
.section-tight{padding:56px 0}
.section-line{border-top:1px solid var(--c-line)}
.dot-field{
  background-color:var(--c-night);
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:24px 24px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-ink-2);margin-bottom:14px
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-accent)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:32px;margin:0}
.sec-head p{color:var(--c-ink-2);font-size:15px;margin:6px 0 0}
.sec-link{font-size:14.5px;white-space:nowrap;border-bottom:2px solid var(--c-tint-2);padding-bottom:2px}

/* ============ NAV ============ */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(250,247,242,.94);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-nav.is-scrolled{box-shadow:0 1px 0 var(--c-line),0 6px 18px -16px rgba(21,17,46,.28);background:rgba(250,247,242,.98)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:17px;letter-spacing:.02em}
.brand:hover{color:var(--c-ink);text-decoration:none}
.brand-mark{width:10px;height:10px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(242,169,59,.16)}
.brand-text{white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:32px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{
  position:relative;font-size:15px;color:var(--c-ink);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .16s ease;
}
.nav-links a:hover{color:var(--c-primary);text-decoration:none}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{
  font-size:15px;font-weight:600;color:var(--c-primary);
  padding:9px 18px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:transparent;transition:border-color .18s ease,background .18s ease,transform .18s ease;
}
.nav-cta:hover{color:var(--c-primary);text-decoration:none;border-color:var(--c-primary);background:var(--c-tint);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--c-line);border-radius:var(--r-btn);cursor:pointer;color:var(--c-ink);
}
.nav-toggle svg{width:20px;height:20px}
.offcanvas.mobile-nav{background:#fff;width:100%;max-width:420px}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:20px 24px}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:700}
.mobile-nav .offcanvas-body{padding:14px 24px 32px}
.mobile-links li{border-bottom:1px solid var(--c-line)}
.mobile-links a{
  display:block;font-size:20px;line-height:2.4;color:var(--c-ink);padding-left:12px;border-left:3px solid transparent;
}
.mobile-links a.active{color:var(--c-primary);font-weight:600;border-left-color:var(--c-accent)}
.mobile-cta{
  display:block;margin-top:26px;text-align:center;font-weight:600;
  background:var(--c-accent);color:#241654;padding:13px;border-radius:var(--r-btn);
}
.mobile-cta:hover{color:#241654;text-decoration:none;filter:brightness(.94)}

/* ============ HERO (compact) ============ */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-color:var(--c-night);
  background-image:radial-gradient(rgba(255,255,255,.13) 1px,transparent 1px);
  background-size:24px 24px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(36,22,84,.92) 0%,rgba(36,22,84,.72) 52%,rgba(20,16,43,.55) 100%);
  pointer-events:none;
}
.page-hero .hero-inner{position:relative;z-index:2;padding:74px 0 66px;max-width:820px}
.breadcrumb-list{display:flex;flex-wrap:wrap;gap:8px;font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:20px}
.breadcrumb-list li{display:flex;align-items:center;gap:8px}
.breadcrumb-list li+li::before{content:"/";color:rgba(255,255,255,.35)}
.breadcrumb-list a{color:rgba(255,255,255,.82)}
.breadcrumb-list a:hover{color:var(--c-accent);text-decoration:none}
.page-hero h1{font-size:46px;color:#fff;margin-bottom:16px}
.page-hero .lede{font-size:17px;color:rgba(255,255,255,.78);max-width:640px;margin:0}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tag{
  font-size:13px;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(242,169,59,.42);color:#F6C77C;background:rgba(242,169,59,.08);
}

/* ============ GENERIC ============ */
.tag{
  display:inline-block;font-size:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-tint);color:var(--c-primary);border:1px solid var(--c-tint-2);
}
.tag-cool{background:rgba(18,178,166,.1);color:#0c7d75;border-color:rgba(18,178,166,.28)}
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15.5px;font-weight:600;padding:12px 24px;border-radius:var(--r-btn);
  transition:transform .18s ease,filter .18s ease,border-color .18s ease,background .18s ease,color .18s ease;
  cursor:pointer;border:1px solid transparent;
}
.btn-main{background:var(--c-accent);color:#241654}
.btn-main:hover{filter:brightness(.94);transform:translateY(-1px);text-decoration:none;color:#241654}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-tint);text-decoration:none;color:var(--c-primary)}
.btn-onDark{background:transparent;color:#fff;border-color:rgba(255,255,255,.32)}
.btn-onDark:hover{color:#fff;border-color:var(--c-accent);background:rgba(242,169,59,.12);text-decoration:none}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);position:relative;overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card:hover::before{transform:scaleX(1)}
.card-body{padding:26px}
.card h3{font-size:20px;margin-bottom:10px}
.card p{color:var(--c-ink-2);font-size:15.5px}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ============ LEAD + INDEX ============ */
.lead-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:44px;align-items:start}
.lead-copy{max-width:700px}
.lead-copy h2{font-size:30px}
.lead-copy p{color:var(--c-ink-2)}
.index-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1)}
.index-card h3{font-size:17px;margin-bottom:14px}
.index-list li{border-top:1px solid var(--c-line)}
.index-list li:first-child{border-top:0}
.index-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;font-size:15px;color:var(--c-ink)}
.index-list a:hover{color:var(--c-primary);text-decoration:none}
.index-list .idx{font-size:12px;color:var(--c-ink-2);font-variant-numeric:tabular-nums}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px}
.accordion-item{background:transparent;border:0;border-top:1px solid var(--c-line)}
.accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.accordion-button{
  background:transparent;border:0;box-shadow:none !important;
  font-size:17px;font-weight:600;color:var(--c-ink);
  padding:22px 44px 22px 16px;position:relative;line-height:1.55;
  transition:color .16s ease;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;background:var(--c-accent);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;border-radius:2px;
}
.accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.accordion-button:not(.collapsed){color:var(--c-primary);background:transparent}
.accordion-button:hover{color:var(--c-primary)}
.accordion-button::after{
  content:none;
}
.accordion-button .pm{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;flex:none;
}
.accordion-button .pm::before,
.accordion-button .pm::after{
  content:"";position:absolute;background:var(--c-ink-2);transition:transform .2s ease,background .2s ease;
}
.accordion-button .pm::before{left:0;right:0;top:7.5px;height:1px}
.accordion-button .pm::after{top:0;bottom:0;left:7.5px;width:1px}
.accordion-button:not(.collapsed) .pm::after{transform:scaleY(0);background:var(--c-accent)}
.accordion-button:not(.collapsed) .pm::before{background:var(--c-accent)}
.accordion-body{
  font-size:15.5px;line-height:1.9;color:var(--c-ink-2);
  padding:0 56px 22px 16px;
}

/* ============ ARTICLE SECTIONS ============ */
.article-body{max-width:760px}
.article-body h2{font-size:26px;margin-top:0}
.article-body h2::before{
  content:"";display:inline-block;width:3px;height:20px;background:var(--c-accent);
  border-radius:2px;margin-right:12px;vertical-align:-2px;
}
.article-body h3{font-size:19px;margin-top:28px}
.article-body p{color:var(--c-ink-2)}
.article-body ul{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.6em;color:var(--c-ink-2)}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}
.quote-block{
  border-left:3px solid var(--c-primary);background:rgba(74,46,143,.06);
  padding:20px 24px;border-radius:0 var(--r-card) var(--r-card) 0;margin:26px 0;
  font-size:15.5px;color:var(--c-ink-2);
}
.media-figure{margin:32px 0}
.media-figure figcaption{font-size:13px;color:var(--c-ink-2);text-align:center;margin-top:12px}

/* ============ CHECK LIST (compact) ============ */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.check-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);display:flex;gap:16px;align-items:flex-start;
}
.check-num{
  font-size:26px;font-weight:700;color:var(--c-primary);opacity:.28;
  font-variant-numeric:tabular-nums;line-height:1;flex:none;
}
.check-item h3{font-size:16.5px;margin-bottom:6px}
.check-item p{font-size:14.5px;color:var(--c-ink-2);margin:0}

/* ============ CTA BAND ============ */
.cta-band{position:relative;color:#fff;border-top:1px solid rgba(255,255,255,.08)}
.cta-band .cta-inner{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  gap:36px;padding:62px 0;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:29px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.72);font-size:15.5px;margin:0;max-width:560px}

/* ============ FORM ============ */
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:34px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--c-ink)}
.form-control,.form-select{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;padding:0 14px;font-size:15px;color:var(--c-ink);
  transition:border-color .16s ease,box-shadow .16s ease;
}
textarea.form-control{height:auto;min-height:118px;padding:12px 14px;line-height:1.8;resize:vertical}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(74,46,143,.14);
}
.form-control::placeholder{color:#9a94a8}
.form-check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-ink-2);margin:6px 0 22px}
.form-check input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-primary);flex:none}
.btn-submit{width:100%;justify-content:center}
.form-hint{font-size:13px;color:var(--c-ink-2);margin-top:14px}

/* ============ FOOTER ============ */
.site-footer{color:rgba(255,255,255,.76);padding:72px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand:hover{color:var(--c-accent);text-decoration:none}
.footer-text{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);margin:0}
.footer-title{font-size:14px;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,.7)}
.footer-links a:hover{color:var(--c-accent);text-decoration:none}
.footer-note{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.58);margin-bottom:10px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ RESPONSIVE ============ */
@media (min-width:1400px){
  .page-hero h1{font-size:50px}
}
@media (max-width:1199.98px){
  .container{padding:0 24px}
  .lead-grid{grid-template-columns:1fr;gap:32px}
  .check-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .page-hero .hero-inner{padding:56px 0 50px}
  .page-hero h1{font-size:36px}
  .section{padding:72px 0}
  .sec-head h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .accordion-button{font-size:16px;padding:18px 40px 18px 14px}
  .accordion-body{padding:0 40px 18px 14px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:var(--sp-section-m) 0}
  .section-tight{padding:44px 0}
  .check-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .cta-band .cta-inner{padding:48px 0;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:24px}
  .form-card{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{margin-top:40px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .page-hero h1{font-size:30px}
  .page-hero .lede{font-size:15.5px}
  .page-hero .hero-inner{padding:46px 0 42px}
  .article-body h2{font-size:23px}
  .btn-main,.btn-ghost{width:100%}
  .sec-head h2{font-size:24px}
}