/* roulang page: index */
:root{
  --c-ink:#171A18;
  --c-ink-2:#4C534C;
  --c-ink-3:#7B827B;
  --c-primary:#14544A;
  --c-primary-d:#0E3B34;
  --c-primary-l:#DEEAE5;
  --c-accent:#C4693B;
  --c-accent-l:#F6E4D9;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1EDE4;
  --c-line:#E5DFD3;
  --c-ok:#2F7D5B;
  --c-warn:#B8862F;
  --c-err:#B03A2E;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:16px;
  --radius-xl:24px;
  --radius-pill:999px;
  --sh-1:0 1px 2px rgba(23,26,24,.04), 0 8px 24px rgba(23,26,24,.06);
  --sh-2:0 12px 32px rgba(20,84,74,.12);
  --container:1200px;
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--c-primary-d);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section--tight{padding:72px 0;}
.section--paper{background:var(--c-surface);}
.section-label{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-accent);
  text-transform:uppercase;
  margin-bottom:14px;
}
.section-title{
  font-size:clamp(24px,3vw,36px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.section-lead{
  margin-top:14px;
  max-width:760px;
  font-size:17px;
  line-height:1.8;
  color:var(--c-ink-2);
}
.center{text-align:center;}
.center .section-lead{margin-left:auto;margin-right:auto;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-pill);
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#AD5730;color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(196,105,59,.25);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* 导航 */
.site-nav{position:sticky;top:14px;z-index:90;padding:0 18px;}
.nav-inner{
  position:relative;
  max-width:var(--container);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 12px 10px 18px;
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  border-radius:var(--radius-pill);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.site-nav.is-stuck .nav-inner{background:rgba(255,255,255,.94);box-shadow:var(--sh-1);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--c-primary),var(--c-primary-d));
  color:#fff;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  color:var(--c-ink-2);
  border-radius:var(--radius-pill);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-l);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--c-primary);
}
.nav-cta{margin-left:8px;}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  border-radius:var(--radius-pill);
  cursor:pointer;
  position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;top:50%;
  width:18px;height:2px;background:var(--c-ink);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span::before{content:"";transform:translate(-50%,-6px);}
.nav-toggle span::after{content:"";transform:translate(-50%,6px);}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translate(-50%,0) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translate(-50%,0) rotate(-45deg);}
.nav-panel{
  display:none;
  position:absolute;
  top:calc(100% + 10px);
  left:0;right:0;
  padding:10px;
  background:rgba(255,255,255,.97);
  border:1px solid var(--c-line);
  border-radius:var(--radius-xl);
  box-shadow:var(--sh-1);
  flex-direction:column;
  gap:2px;
  animation:panelIn .2s ease-out;
}
.nav-panel.is-open{display:flex;}
.nav-panel a{
  display:flex;align-items:center;
  min-height:44px;
  padding:0 16px;
  border-radius:var(--radius-m);
  color:var(--c-ink-2);
  font-size:15px;
}
.nav-panel a:hover{background:var(--c-primary-l);color:var(--c-primary);}
.nav-panel a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-l);}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}

/* Hero */
.hero{position:relative;padding:72px 0 96px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;right:-160px;top:-120px;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,84,74,.08) 0 32%,transparent 33% 46%,rgba(20,84,74,.06) 47% 60%,transparent 61%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:56px;
  align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--c-primary);
  background:var(--c-primary-l);
  border-radius:var(--radius-pill);
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.01em;
}
.hero-sub{
  margin-top:20px;
  max-width:640px;
  font-size:18px;
  line-height:1.75;
  color:var(--c-ink-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:14px 28px;
  margin-top:36px;padding-top:26px;
  border-top:1px solid var(--c-line);
}
.hero-trust li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--c-ink-2);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);flex:0 0 8px;}
.dot--green{background:var(--c-ok);}
.dot--gold{background:var(--c-warn);}
.hero-media{
  position:relative;
  border-radius:40px 40px 10px 40px;
  overflow:hidden;
  box-shadow:var(--sh-2);
  background:var(--c-surface);
  aspect-ratio:4/3.2;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(20,84,74,.24),rgba(14,59,52,.05) 55%,transparent);
}
.hero-chip{
  position:absolute;left:18px;bottom:18px;z-index:2;
  padding:12px 18px;
  background:rgba(255,255,255,.94);
  border-radius:var(--radius-l);
  box-shadow:var(--sh-1);
  font-size:14px;font-weight:600;color:var(--c-primary-d);
}

/* 卖点 */
.value-list{border-top:1px solid var(--c-line);margin-top:44px;}
.value-item{
  display:grid;
  grid-template-columns:110px 1fr;
  gap:28px;
  align-items:start;
  padding:34px 0;
  border-bottom:1px solid var(--c-line);
  transition:background-color .2s ease;
}
.value-item:hover{background:rgba(255,255,255,.6);}
.value-item:nth-child(even){padding-left:44px;}
.value-num{
  font-size:46px;
  font-weight:700;
  line-height:1;
  color:var(--c-primary);
  opacity:.26;
  font-variant-numeric:tabular-nums;
}
.value-body h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.value-body p{font-size:16px;color:var(--c-ink-2);max-width:720px;}

/* 演示区 */
.show-row{
  display:grid;
  grid-template-columns:5fr 4fr;
  gap:44px;
  align-items:center;
  margin-top:56px;
}
.show-row:first-of-type{margin-top:44px;}
.show-row.is-reverse{grid-template-columns:4fr 5fr;}
.show-row.is-reverse .show-media{order:2;}
.show-row.is-reverse .show-text{order:1;}
.show-media{
  padding:12px;
  border:1px solid var(--c-line);
  border-radius:var(--radius-xl);
  background:var(--c-surface);
}
.show-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-l);
}
.show-text h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;}
.show-text p{margin-top:14px;color:var(--c-ink-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.tag{
  display:inline-block;
  padding:6px 13px;
  font-size:12px;
  font-weight:600;
  color:var(--c-primary);
  background:var(--c-primary-l);
  border-radius:6px;
}
.tag--accent{color:#8A4522;background:var(--c-accent-l);}
.mini-list{margin-top:20px;display:grid;gap:10px;}
.mini-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--c-ink-2);
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:12px;
  width:8px;height:2px;border-radius:2px;background:var(--c-accent);
}

/* 证据区 */
.proof-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:38px 0;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  margin-top:44px;
}
.proof-item strong{
  display:block;
  font-size:clamp(30px,3.4vw,44px);
  font-weight:700;
  line-height:1.1;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.proof-item span{display:block;margin-top:8px;font-size:14px;color:var(--c-ink-2);}
.quote{
  margin-top:44px;
  padding:26px 30px;
  border-left:3px solid var(--c-accent);
  background:var(--c-accent-l);
  border-radius:0 var(--radius-l) var(--radius-l) 0;
}
.quote p{font-size:17px;line-height:1.85;color:#6B3B22;}
.quote cite{display:block;margin-top:12px;font-size:13px;font-style:normal;color:var(--c-ink-3);}

/* 资讯区 */
.news-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
  margin-top:44px;
}
.news-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-l);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:nth-child(even){margin-top:28px;}
.news-card:hover{transform:translateY(-2px);border-color:var(--c-primary-l);box-shadow:var(--sh-2);}
.news-cover{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-2);}
.news-cover img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:22px 24px 26px;}
.news-body h3{font-size:18px;font-weight:600;line-height:1.55;margin-top:12px;}
.news-card:hover h3{color:var(--c-primary);}
.news-body p{
  margin-top:10px;
  font-size:15px;
  color:var(--c-ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;gap:8px;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-ink-3);
}
.news-empty{
  margin-top:44px;
  padding:44px 28px;
  text-align:center;
  border:1px dashed var(--c-line);
  border-radius:var(--radius-l);
  background:var(--c-surface);
  color:var(--c-ink-2);
}
.news-empty a{margin-left:6px;font-weight:600;}

/* 方案档位 */
.plan-list{margin-top:44px;display:grid;gap:20px;}
.plan{
  display:grid;
  grid-template-columns:190px 1fr 220px;
  gap:28px;
  align-items:center;
  padding:28px 30px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-l);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.plan:hover{box-shadow:var(--sh-1);}
.plan.is-featured{
  border:1.5px solid var(--c-accent);
  box-shadow:0 12px 32px rgba(196,105,59,.12);
}
.plan-name{display:flex;flex-direction:column;gap:8px;}
.plan-name b{font-size:19px;font-weight:700;}
.badge-rec{
  align-self:flex-start;
  padding:5px 12px;
  font-size:12px;font-weight:600;
  color:#fff;background:var(--c-accent);
  border-radius:var(--radius-pill);
}
.badge-soft{
  align-self:flex-start;
  padding:5px 12px;
  font-size:12px;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-l);
  border-radius:var(--radius-pill);
}
.plan-desc{font-size:15px;color:var(--c-ink-2);}
.plan-desc ul{margin-top:10px;display:grid;gap:6px;}
.plan-desc li{position:relative;padding-left:18px;font-size:14px;color:var(--c-ink-2);}
.plan-desc li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:var(--c-primary);border-radius:2px;}
.plan-action{display:flex;flex-direction:column;align-items:flex-start;gap:12px;}
.plan-action .price-tag{font-size:20px;font-weight:700;color:var(--c-primary-d);}

/* FAQ */
.faq-list{margin-top:44px;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;
  background:transparent;border:0;
  text-align:left;
  font-size:17px;font-weight:600;
  color:var(--c-ink);
  cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  position:relative;flex:0 0 22px;width:22px;height:22px;
  border-radius:50%;
  background:var(--c-primary-l);
  color:var(--c-primary);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .24s ease,opacity .24s ease;
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  padding:0 4px;
  transition:max-height .3s ease,padding .24s ease;
}
.faq-item.is-open .faq-a{max-height:320px;padding:0 4px 20px;}
.faq-a p{font-size:15.5px;line-height:1.85;color:var(--c-ink-2);max-width:860px;}

/* 联系 */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:48px;
  align-items:start;
  margin-top:44px;
}
.contact-points{display:grid;gap:18px;margin-top:28px;}
.contact-points li{
  padding:18px 22px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-l);
  font-size:15px;
  color:var(--c-ink-2);
}
.contact-points b{display:block;color:var(--c-ink);font-size:16px;margin-bottom:4px;}
.form-card{
  padding:30px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-xl);
  box-shadow:var(--sh-1);
}
.form-row{display:grid;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:14px;font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border:1px solid var(--c-line);
  border-radius:var(--radius-m);
  background:var(--c-surface);
  color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.8;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px var(--c-primary-l);
}
.field .hint{font-size:13px;color:var(--c-ink-3);}
.form-ok{
  display:none;
  margin-bottom:18px;
  padding:12px 16px;
  border-radius:var(--radius-m);
  background:#E7F2EC;
  border:1px solid #C4E0D2;
  color:#1F5C43;
  font-size:14px;
}
.form-ok.is-show{display:block;}
.form-actions{margin-top:22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.form-actions .note{font-size:13px;color:var(--c-ink-3);}

/* 页脚 */
.site-footer{
  margin-top:20px;
  padding:64px 0 26px;
  background:var(--c-primary-d);
  color:rgba(255,255,255,.72);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.site-footer p{font-size:14px;line-height:1.85;}
.site-footer ul{display:grid;gap:10px;}
.site-footer a{color:rgba(255,255,255,.72);font-size:14px;display:inline-block;transition:color .2s ease,transform .2s ease;}
.site-footer a:hover{color:#fff;transform:translateX(-2px);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand span{color:#fff;font-size:16px;font-weight:700;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:95;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 22px;
  font-size:15px;font-weight:600;
  color:#fff;background:var(--c-accent);
  border-radius:var(--radius-pill);
  box-shadow:0 12px 28px rgba(196,105,59,.28);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background-color .2s ease;
}
.float-cta:hover{background:#AD5730;color:#fff;}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta.is-lowered{transform:translateY(72px);}

@media (max-width:1279px){
  .container{padding:0 24px;}
  .hero-grid{gap:44px;}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:block;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-media{aspect-ratio:16/10;}
  .show-row,.show-row.is-reverse{grid-template-columns:1fr;gap:28px;}
  .show-row.is-reverse .show-media{order:1;}
  .show-row.is-reverse .show-text{order:2;}
  .proof-bar{grid-template-columns:repeat(2,1fr);gap:28px;}
  .news-grid{grid-template-columns:1fr;}
  .news-card:nth-child(even){margin-top:0;}
  .plan{grid-template-columns:1fr;gap:18px;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .value-item,.value-item:nth-child(even){grid-template-columns:76px 1fr;gap:20px;padding-left:0;}
  .value-num{font-size:34px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 18px;}
  .section{padding:60px 0;}
  .section--tight{padding:48px 0;}
  .hero{padding:40px 0 64px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-sub{font-size:16px;}
  .proof-bar{grid-template-columns:1fr;gap:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .form-card{padding:22px 18px;}
  .float-cta{
    left:0;right:0;bottom:0;
    width:100%;
    justify-content:center;
    border-radius:0;
    padding:0 18px;
    height:56px;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .float-cta.is-lowered{transform:translateY(0);}
  .quote{padding:20px;}
}
@media (max-width:520px){
  .nav-inner{padding:8px 10px 8px 12px;gap:10px;}
  .brand-text{font-size:14px;}
  .nav-toggle{width:40px;height:40px;}
  .hero-chip{left:12px;bottom:12px;padding:10px 14px;font-size:13px;}
  .plan{padding:22px 18px;}
  .section-title{font-size:22px;}
}

/* roulang page: article */
:root{
  --c-ink:#171A18;--c-ink-2:#4C534C;--c-ink-3:#7B827B;
  --c-primary:#14544A;--c-primary-d:#0E3B34;--c-primary-l:#DEEAE5;
  --c-accent:#C4693B;--c-accent-l:#F6E4D9;
  --c-bg:#F7F4EE;--c-surface:#FFFFFF;--c-surface-2:#F1EDE4;
  --c-line:#E5DFD3;--c-ok:#2F7D5B;--c-warn:#B8862F;--c-err:#B03A2E;
  --radius-s:8px;--radius-m:12px;--radius-l:16px;--radius-xl:24px;--radius-pill:999px;
  --sh-1:0 1px 2px rgba(23,26,24,.04),0 8px 24px rgba(23,26,24,.06);
  --sh-2:0 12px 32px rgba(20,84,74,.12);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::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","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#fff;padding:10px 16px;border-radius:0 0 var(--radius-m) 0;z-index:200;}
.skip-link:focus{left:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  border:1.5px solid transparent;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#B25A31;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* 导航 */
.site-nav{position:sticky;top:14px;z-index:80;padding:0 18px;}
.nav-inner{
  position:relative;max-width:var(--container);margin:0 auto;
  display:flex;align-items:center;gap:20px;
  padding:10px 14px 10px 18px;
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--c-line);border-radius:var(--radius-pill);
  box-shadow:0 1px 2px rgba(23,26,24,.04);
  transition:background-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-nav.is-scrolled .nav-inner{background:rgba(255,255,255,.92);box-shadow:var(--sh-1);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:var(--radius-m);flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-d));
  color:#fff;font-weight:700;font-size:14px;letter-spacing:.02em;
}
.brand-text{font-size:16px;font-weight:700;color:var(--c-ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:20px;margin-left:6px;}
.nav-links a{
  position:relative;font-size:15px;color:var(--c-ink-2);padding:6px 2px;
  transition:color .2s var(--ease);
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:-4px;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--c-primary);
}
.nav-cta{margin-left:auto;min-height:42px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--c-line);
  border-radius:var(--radius-pill);background:var(--c-surface);cursor:pointer;
  align-items:center;justify-content:center;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(-90deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{opacity:0;}
.nav-panel{
  display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
  background:rgba(255,255,255,.97);border:1px solid var(--c-line);
  border-radius:var(--radius-xl);box-shadow:var(--sh-1);padding:10px;
}
.nav-panel a{
  display:flex;align-items:center;min-height:44px;padding:0 16px;border-radius:var(--radius-m);
  color:var(--c-ink-2);font-size:15px;transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-panel a:hover{background:var(--c-surface-2);color:var(--c-primary);}
.nav-panel a.is-active{background:var(--c-primary-l);color:var(--c-primary);font-weight:600;}
.site-nav.is-open .nav-panel{display:block;animation:panelIn .2s ease-out;}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}

/* 文章头部 */
.article-hero{
  margin-top:26px;padding:40px 0 34px;
  background:
    linear-gradient(180deg,rgba(222,234,229,.55),rgba(247,244,238,0)),
    radial-gradient(600px 240px at 88% 10%,rgba(20,84,74,.07),transparent 70%);
  border-bottom:1px solid var(--c-line);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-ink-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--c-ink-3);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{opacity:.7;}
.breadcrumb .current{
  max-width:46ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--c-ink-2);
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-primary-l);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  padding:5px 12px;border-radius:6px;
}
.article-title{
  margin-top:14px;
  font-size:clamp(28px,3.8vw,44px);line-height:1.24;font-weight:700;letter-spacing:-.01em;
  max-width:22ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:13px;color:var(--c-ink-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-ink-3);opacity:.6;}
.article-meta strong{color:var(--c-ink-2);font-weight:600;}

/* 布局 */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;
  padding-top:52px;padding-bottom:88px;align-items:start;
}
.article-main{min-width:0;}
.article-body{
  max-width:760px;font-size:16px;line-height:1.9;letter-spacing:.01em;color:var(--c-ink);
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;color:var(--c-ink-2);}
.article-body strong{color:var(--c-ink);}
.article-body h2{
  font-size:clamp(22px,2.5vw,28px);line-height:1.42;font-weight:700;
  margin:2em 0 .8em;padding-left:14px;border-left:3px solid var(--c-primary);
  color:var(--c-primary-d);
}
.article-body h3{font-size:19px;font-weight:600;margin:1.7em 0 .6em;color:var(--c-ink);}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--c-ink);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;color:var(--c-ink-2);}
.article-body ul li{list-style:disc;margin:.4em 0;}
.article-body ol li{list-style:decimal;margin:.4em 0;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--c-primary-l);
  border-left:3px solid var(--c-primary);border-radius:0 var(--radius-m) var(--radius-m) 0;
  color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-l);margin:1.6em auto;}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-ink-3);margin-top:10px;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-primary-d);}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body thead th{background:var(--c-surface-2);font-weight:600;color:var(--c-ink);}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left;}
.article-body code{background:var(--c-surface-2);padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0;}

/* 相关推荐 */
.related{margin-top:64px;padding-top:32px;border-top:1px solid var(--c-line);}
.section-label{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:8px;
}
.related h2{font-size:24px;font-weight:700;margin-bottom:22px;color:var(--c-ink);}
.related-list{display:grid;gap:16px;}
.related-item{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:20px;align-items:center;
  padding:16px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-l);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.related-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-l);}
.related-item:hover h3{color:var(--c-primary);}
.related-item img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-m);}
.related-item h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px;transition:color .2s var(--ease);}
.related-item p{font-size:14px;color:var(--c-ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-item .rmeta{font-size:12.5px;color:var(--c-ink-3);margin-top:8px;}
.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:32px;
  font-size:15px;font-weight:600;color:var(--c-primary);
}
.back-link .arrow{transition:transform .2s var(--ease);}
.back-link:hover .arrow{transform:translateX(4px);}
.back-link:hover{text-decoration:underline;text-underline-offset:4px;}

/* 空态 */
.empty-state{
  max-width:640px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-xl);padding:36px 32px;box-shadow:var(--sh-1);
}
.empty-state h2{font-size:24px;font-weight:700;margin-bottom:12px;}
.empty-state p{color:var(--c-ink-2);margin-bottom:22px;}

/* 侧栏 */
.article-side{position:sticky;top:96px;display:grid;gap:18px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-l);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:15px;font-weight:700;color:var(--c-ink);margin-bottom:14px;}
.side-card ul li + li{margin-top:10px;}
.side-card ul a{font-size:14.5px;color:var(--c-ink-2);transition:color .2s var(--ease),padding-left .2s var(--ease);}
.side-card ul a:hover{color:var(--c-primary);padding-left:4px;}
.side-card .points li{
  font-size:14px;color:var(--c-ink-2);line-height:1.7;padding-left:18px;position:relative;
}
.side-card .points li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--c-primary-l);border:2px solid var(--c-primary);
}
.side-card.accent{background:var(--c-accent-l);border-color:#EBD2C2;}
.side-card.accent h3{color:#8C4522;}

/* 底部 CTA */
.cta-band{
  background:linear-gradient(135deg,var(--c-primary-d),var(--c-primary));
  color:#fff;padding:56px 0;
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.78);max-width:56ch;font-size:15px;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-band .btn-primary{background:#fff;color:var(--c-primary-d);}
.cta-band .btn-primary:hover{background:var(--c-primary-l);}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);}

/* 页脚 */
.site-footer{background:var(--c-primary-d);color:rgba(255,255,255,.72);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff;}
.site-footer p{font-size:14px;line-height:1.85;max-width:38ch;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600;}
.site-footer ul li + li{margin-top:10px;}
.site-footer ul li,.site-footer ul a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);}
.site-footer ul a{display:inline-block;}
.site-footer ul a:hover{color:#fff;transform:translateX(-2px);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.58);
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:inline-flex;align-items:center;gap:8px;
  min-height:50px;padding:0 22px;border-radius:var(--radius-pill);
  background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-2);opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),background-color .2s var(--ease);
}
.float-cta.is-show{opacity:1;pointer-events:auto;transform:translateY(0);}
.float-cta:hover{background:#B25A31;}

@media (max-width:1279px){
  .container{padding:0 24px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 270px;gap:40px;}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:1fr;gap:0;padding-top:40px;padding-bottom:64px;}
  .article-side{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 18px;}
  .site-nav{top:10px;padding:0 12px;}
  .nav-inner{padding:8px 10px 8px 12px;gap:12px;}
  .brand-text{font-size:14.5px;}
  .brand-mark{width:34px;height:34px;font-size:13px;}
  .article-hero{padding:28px 0 26px;margin-top:16px;}
  .article-title{max-width:none;}
  .breadcrumb .current{max-width:24ch;}
  .article-body h2{padding-left:12px;}
  .related-item{grid-template-columns:1fr;gap:14px;padding:14px;}
  .related-item img{aspect-ratio:16/9;}
  .cta-band{padding:44px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    min-height:56px;padding:0 18px 0;padding-bottom:env(safe-area-inset-bottom);
  }
  .float-cta.is-show{transform:translateY(0);}
}

/* roulang page: category1 */
:root{
  --c-ink:#171A18;--c-ink-2:#4C534C;--c-ink-3:#7B827B;
  --c-primary:#14544A;--c-primary-d:#0E3B34;--c-primary-l:#DEEAE5;
  --c-accent:#C4693B;--c-accent-l:#F6E4D9;
  --c-bg:#F7F4EE;--c-surface:#FFFFFF;--c-surface-2:#F1EDE4;
  --c-line:#E5DFD3;--c-ok:#2F7D5B;--c-warn:#B8862F;--c-err:#B03A2E;
  --radius-s:8px;--radius-m:12px;--radius-l:16px;--radius-xl:24px;--radius-pill:999px;
  --sh-1:0 1px 2px rgba(23,26,24,.04),0 8px 24px rgba(23,26,24,.06);
  --sh-2:0 12px 32px rgba(20,84,74,.12);
  --container:1200px;
  --ff:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--ff);font-size:16px;line-height:1.9;letter-spacing:.01em;
  color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,transform .2s ease,background-color .2s ease,border-color .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.28}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.22}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:19px;font-weight:600;line-height:1.45}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:15px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--c-primary);background:var(--c-primary-l);border-radius:var(--radius-pill);
  padding:5px 14px;margin-bottom:16px;
}
.lead{font-size:17.5px;line-height:1.8;color:var(--c-ink-2);max-width:62ch}
.badge{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--c-primary);background:var(--c-primary-l);border-radius:6px;padding:3px 9px}
.badge-accent{color:#8A3F19;background:var(--c-accent-l)}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;top:14px;z-index:90;margin:14px auto 0;max-width:calc(var(--container) - 8px);
  padding:0 14px;
}
.nav-inner{
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.78);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--c-line);border-radius:var(--radius-pill);
  padding:9px 12px 9px 16px;transition:background-color .25s ease,box-shadow .25s ease;
}
.site-nav.is-scrolled .nav-inner{background:rgba(255,255,255,.94);box-shadow:var(--sh-1)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--c-primary),var(--c-primary-d));
  color:#fff;font-size:13px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:15.5px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;flex:1 1 auto}
.nav-links a{
  position:relative;font-size:15px;color:var(--c-ink-2);padding:8px 11px;border-radius:var(--radius-pill);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-l)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:0;width:4px;height:4px;border-radius:50%;
  background:var(--c-primary);transform:translateX(-50%);
}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid var(--c-line);background:var(--c-surface);position:relative;flex:0 0 auto;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:13px;right:13px;height:2px;border-radius:2px;background:var(--c-ink);
  transition:transform .2s ease,opacity .2s ease;content:"";
}
.nav-toggle span{top:50%;transform:translateY(-50%)}
.nav-toggle span::before{top:-6px;left:0;right:0}
.nav-toggle span::after{top:6px;left:0;right:0}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-panel{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;border-radius:var(--radius-pill);
  padding:14px 24px;border:1.5px solid transparent;min-height:44px;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#A95527;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.6)}
.btn-light:hover{background:rgba(255,255,255,.26);transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary)}
.arrow-link::after{content:"→";transition:transform .2s ease}
.arrow-link:hover::after{transform:translateX(4px)}
.arrow-link:hover{text-decoration:underline}

/* ---------- 分类首屏 ---------- */
.cat-hero{
  position:relative;margin-top:-64px;padding:150px 0 92px;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(14,59,52,.86),rgba(20,84,74,.66)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom-left-radius:32px;border-bottom-right-radius:32px;
}
.cat-hero::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.14),transparent 68%);
}
.cat-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:#fff}
.crumb span{opacity:.6}
.cat-hero h1{color:#fff;max-width:19ch}
.cat-hero h1 em{font-style:normal;color:#F3C9AE}
.hero-note{margin-top:18px;font-size:17.5px;line-height:1.8;color:rgba(255,255,255,.84);max-width:60ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px 34px;margin-top:36px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.24);
}
.hero-facts div{display:flex;align-items:center;gap:9px;font-size:14.5px;color:rgba(255,255,255,.86)}
.hero-facts i{width:7px;height:7px;border-radius:50%;background:#F3C9AE;display:inline-block}

/* ---------- 图文交错 ---------- */
.split{display:grid;grid-template-columns:repeat(2,1fr);gap:56px;align-items:center}
.split + .split{margin-top:64px}
.split-media{position:relative;padding:12px;border:1px solid var(--c-line);border-radius:var(--radius-xl);background:var(--c-surface)}
.split-media img{border-radius:var(--radius-l);width:100%;aspect-ratio:16/11;object-fit:cover}
.split-media figcaption{margin-top:12px;font-size:13px;color:var(--c-ink-3);text-align:center}
.split h2{margin-bottom:14px}
.split p{color:var(--c-ink-2)}
.check-list{margin-top:20px;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;font-size:15.5px;color:var(--c-ink-2)}
.check-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:7px;border-radius:6px;
  background:var(--c-primary-l);
  background-image:linear-gradient(var(--c-primary),var(--c-primary));
  background-size:9px 2px;background-repeat:no-repeat;background-position:center;
}

/* ---------- 编号步骤流 ---------- */
.steps-wrap{max-width:920px}
.step-list{margin-top:20px;position:relative}
.step{
  display:grid;grid-template-columns:92px 1fr;gap:30px;padding:32px 0;
  border-top:1px solid var(--c-line);position:relative;
}
.step:first-child{border-top:none}
.step-num{
  font-size:40px;font-weight:700;line-height:1;letter-spacing:-.04em;
  color:var(--c-primary);font-variant-numeric:tabular-nums;position:relative;
}
.step-list::before{
  content:"";position:absolute;left:45px;top:34px;bottom:34px;width:1px;background:var(--c-line);
}
.step-num span{position:relative;z-index:2;background:var(--c-bg);padding-right:6px}
.step h3{margin-bottom:8px}
.step p{color:var(--c-ink-2);max-width:60ch}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.step-tip{
  margin-top:14px;font-size:14.5px;color:var(--c-ink-2);background:var(--c-surface-2);
  border-left:3px solid var(--c-primary);border-radius:0 var(--radius-m) var(--radius-m) 0;
  padding:12px 16px;
}

/* ---------- 条目列表 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px}
.entry-grid .entry:nth-child(even){transform:translateY(26px)}
.entry{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-l)}
.entry-cover{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-2)}
.entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.entry:hover .entry-cover img{transform:scale(1.04)}
.entry-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.entry-body h3{transition:color .2s ease}
.entry:hover .entry-body h3{color:var(--c-primary)}
.entry-body p{color:var(--c-ink-2);font-size:15.5px}
.entry-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px}
.entry-time{font-size:13px;color:var(--c-ink-3)}

/* ---------- 动态 ---------- */
.news-block{background:var(--c-surface-2);border-radius:var(--radius-xl);padding:56px 48px;margin-top:0}
.news-list{display:grid;gap:0;margin-top:26px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-l);overflow:hidden}
.news-item{display:grid;grid-template-columns:120px 1fr auto;gap:22px;align-items:center;padding:20px 26px;border-top:1px solid var(--c-line)}
.news-item:first-child{border-top:none}
.news-item:hover{background:#FBF9F5}
.news-item time{font-size:13.5px;color:var(--c-ink-3);font-variant-numeric:tabular-nums}
.news-item h3{font-size:16.5px;margin-bottom:4px}
.news-item p{font-size:14.5px;color:var(--c-ink-2);margin:0}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin-top:32px;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:none;text-align:left;padding:22px 0;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .24s ease,opacity .24s ease;
}
.faq-icon::before{width:13px;height:2px}
.faq-icon::after{width:2px;height:13px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{font-size:15.5px;line-height:1.85;color:var(--c-ink-2);padding-bottom:20px;max-width:70ch}

/* ---------- CTA 与表单 ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--c-primary-d),var(--c-primary));
  border-radius:var(--radius-xl);padding:56px 48px;color:#fff;
  display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:start;
}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.82)}
.cta-points{display:grid;gap:10px;margin-top:22px}
.cta-points li{font-size:15px;color:rgba(255,255,255,.86);display:flex;gap:10px}
.cta-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:#F3C9AE;margin-top:11px;flex:0 0 auto}
.form-card{background:rgba(255,255,255,.97);border-radius:var(--radius-l);padding:28px;box-shadow:var(--sh-1)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--c-ink)}
.field input,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--radius-m);
  padding:13px 14px;color:var(--c-ink);background:var(--c-surface);transition:border-color .2s ease,box-shadow .2s ease;
}
.field input{height:48px}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-l);outline:none}
.form-hint{font-size:13px;color:var(--c-ink-3);margin-top:12px;text-align:center}
.form-card .btn{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-d);color:rgba(255,255,255,.72);margin-top:96px;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:16px}
.site-footer p{font-size:14.5px;line-height:1.85;max-width:36ch}
.site-footer h4{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.site-footer ul{display:grid;gap:10px}
.site-footer li{font-size:14.5px}
.site-footer a{color:rgba(255,255,255,.72)}
.site-footer a:hover{color:#fff;transform:translateX(-2px);display:inline-block}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.58);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-accent);color:#fff;font-size:14.5px;font-weight:600;
  padding:14px 22px;border-radius:var(--radius-pill);box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(16px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background-color .2s ease;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:#A95527}
.float-cta.is-low{transform:translateY(4px);opacity:.92}
.float-cta span{display:inline}
.float-cta::before{content:"";width:7px;height:7px;border-radius:50%;background:#fff;opacity:.85}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  :root{--container:1240px}
  .section{padding:112px 0}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .nav-inner{padding:8px 10px 8px 14px}
  .nav-panel{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
    background:rgba(255,255,255,.98);border:1px solid var(--c-line);border-radius:var(--radius-xl);
    box-shadow:var(--sh-1);padding:12px;flex-direction:column;gap:2px;
  }
  .nav-panel.is-open{display:flex;animation:drop .2s ease-out}
  @keyframes drop{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
  .nav-panel a{
    min-height:44px;display:flex;align-items:center;padding:0 14px;border-radius:var(--radius-m);
    font-size:15px;color:var(--c-ink-2);
  }
  .nav-panel a:hover,.nav-panel a.is-active{background:var(--c-primary-l);color:var(--c-primary)}
  .site-nav{position:sticky}
  .cat-hero{margin-top:-60px;padding:130px 0 76px;border-radius:0 0 24px 24px}
  .split{grid-template-columns:1fr;gap:32px}
  .split + .split{margin-top:48px}
  .entry-grid{grid-template-columns:1fr;gap:20px}
  .entry-grid .entry:nth-child(even){transform:none}
  .news-block{padding:40px 26px}
  .cta-band{grid-template-columns:1fr;gap:34px;padding:42px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .cat-hero{padding:118px 0 64px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:10px 20px}
  .step{grid-template-columns:56px 1fr;gap:16px;padding:26px 0}
  .step-num{font-size:30px}
  .step-list::before{left:27px}
  .news-item{grid-template-columns:1fr;gap:8px;padding:18px}
  .news-item .badge{justify-self:start;margin-top:4px}
  .cta-band{padding:32px 20px}
  .form-card{padding:22px 18px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{margin-top:56px;padding:52px 0 22px}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:16px 18px calc(16px + env(safe-area-inset-bottom));
  }
  .float-cta.is-low{transform:translateY(0);opacity:1}
}
@media (max-width:379px){
  .brand-text{font-size:14px}
  .cat-hero h1{font-size:26px}
}

/* roulang page: category2 */
:root{
  --c-ink:#171A18;
  --c-ink-2:#4C534C;
  --c-ink-3:#7B827B;
  --c-primary:#14544A;
  --c-primary-d:#0E3B34;
  --c-primary-l:#DEEAE5;
  --c-accent:#C4693B;
  --c-accent-l:#F6E4D9;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1EDE4;
  --c-line:#E5DFD3;
  --c-ok:#2F7D5B;
  --c-warn:#B8862F;
  --c-err:#B03A2E;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:16px;
  --radius-xl:24px;
  --radius-pill:999px;
  --sh-1:0 1px 2px rgba(23,26,24,.04),0 8px 24px rgba(23,26,24,.06);
  --sh-2:0 12px 32px rgba(20,84,74,.12);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,transform .2s ease;}
a:hover{color:var(--c-primary-d);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--c-surface-2);}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--c-accent);
  margin-bottom:14px;
}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:clamp(24px,3vw,36px);letter-spacing:-.01em;}
.section-head p{margin-top:16px;color:var(--c-ink-2);font-size:17px;line-height:1.75;}
.lead{font-size:18px;line-height:1.75;color:var(--c-ink-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;
  border-radius:var(--radius-pill);
  border:1.5px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent);}
.btn-accent:hover{background:#ad5730;border-color:#ad5730;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn.is-loading{position:relative;color:transparent;}
.btn.is-loading::after{
  content:"";position:absolute;width:18px;height:18px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.tag{
  display:inline-block;padding:3px 10px;border-radius:6px;
  background:var(--c-primary-l);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}

/* ---------- 悬浮胶囊导航 ---------- */
.site-nav{
  position:sticky;top:14px;z-index:60;
  padding:0 18px;
}
.nav-inner{
  position:relative;
  max-width:var(--container);
  margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 14px 10px 16px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.78);
  border:1px solid var(--c-line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.site-nav.is-scrolled .nav-inner{background:rgba(255,255,255,.92);box-shadow:var(--sh-1);}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;flex:0 0 36px;
  border-radius:10px;
  background:var(--c-primary);color:#fff;
  font-size:13px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:16px;letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;
  padding:8px 12px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--c-ink-2);white-space:nowrap;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-l);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;
  width:4px;height:4px;margin-left:-2px;border-radius:50%;background:var(--c-primary);
}
.nav-cta{flex:0 0 auto;min-height:44px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;flex:0 0 44px;
  border:1px solid var(--c-line);border-radius:var(--radius-pill);
  background:#fff;cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;margin-left:-9px;border-radius:2px;background:var(--c-ink);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{content:"";top:-6px;left:0;margin:0;}
.nav-toggle span::after{content:"";top:6px;left:0;margin:0;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}
.nav-panel{
  display:none;
  position:absolute;top:calc(100% + 10px);right:0;
  min-width:230px;padding:10px;
  border-radius:var(--radius-xl);
  background:rgba(255,255,255,.96);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(12px);
}
.nav-panel.is-open{display:block;animation:panelIn .2s ease-out;}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.nav-panel a{
  display:flex;align-items:center;min-height:44px;padding:0 14px;
  border-radius:var(--radius-m);font-size:15px;color:var(--c-ink-2);
}
.nav-panel a:hover,.nav-panel a.is-active{background:var(--c-primary-l);color:var(--c-primary);}

/* ---------- 分类页首屏 ---------- */
.page-hero{
  position:relative;
  margin:26px 18px 0;
  border-radius:var(--radius-xl);
  overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-1);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(14,59,52,.94) 0%,rgba(20,84,74,.86) 46%,rgba(20,84,74,.62) 100%);
}
.page-hero-inner{position:relative;padding:88px 0 80px;}
.page-hero .container{max-width:1180px;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span{opacity:.6;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.06em;
  margin-bottom:20px;
}
.page-hero h1{
  color:#fff;
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.22;
  letter-spacing:-.01em;
  max-width:840px;
}
.page-hero .hero-desc{
  margin-top:20px;max-width:660px;
  color:rgba(255,255,255,.86);
  font-size:17px;line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.page-hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.page-hero .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;border-color:#fff;}
.hero-facts{
  position:relative;
  display:flex;flex-wrap:wrap;gap:14px 40px;
  margin-top:44px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.22);
}
.hero-facts div{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.9);font-size:14px;}
.hero-facts i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--c-accent);}

/* ---------- 图文交错说明 ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split + .split{margin-top:72px;}
.split-media{
  position:relative;padding:12px;border:1px solid var(--c-line);border-radius:var(--radius-xl);background:var(--c-surface);box-shadow:var(--sh-1);
}
.split-media img{border-radius:14px;width:100%;height:340px;object-fit:cover;}
.split-body h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:18px;}
.split-body p{color:var(--c-ink-2);font-size:16.5px;line-height:1.9;}
.split.reverse .split-media{order:2;}
.check-list{margin-top:22px;}
.check-list li{
  position:relative;padding-left:26px;margin-bottom:12px;
  color:var(--c-ink-2);font-size:15.5px;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:10px;height:10px;border-radius:3px;background:var(--c-primary-l);
  border:1.5px solid var(--c-primary);
}

/* ---------- 左右对照 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:56px;}
.compare-col{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-l);
  padding:28px;
  box-shadow:var(--sh-1);
}
.compare-col.is-target{border:1.5px solid var(--c-primary);box-shadow:var(--sh-2);}
.compare-head{display:flex;align-items:center;gap:12px;margin-bottom:8px;}
.compare-head h3{font-size:19px;}
.compare-col.is-target .compare-head h3{color:var(--c-primary);}
.pill{
  display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  background:var(--c-surface-2);color:var(--c-ink-3);
}
.compare-col.is-target .pill{background:var(--c-primary-l);color:var(--c-primary);}
.compare-col > p{color:var(--c-ink-2);font-size:15px;margin-bottom:18px;}
.compare-col ul li{
  display:flex;gap:12px;
  padding:14px 0;border-top:1px solid var(--c-line);
  font-size:15px;color:var(--c-ink-2);
}
.compare-col ul li:first-child{border-top:0;}
.compare-col ul li b{color:var(--c-ink);font-weight:600;flex:0 0 auto;}
.mark-no{color:var(--c-err);font-weight:700;flex:0 0 auto;}
.mark-ok{color:var(--c-ok);font-weight:700;flex:0 0 auto;}

/* ---------- 规格表 ---------- */
.spec-wrap{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-l);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.spec-head{
  padding:24px 28px;border-bottom:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;
}
.spec-head h3{font-size:20px;}
.spec-head span{font-size:13px;color:var(--c-ink-3);}
.spec-scroll{overflow-x:auto;}
table.spec{width:100%;border-collapse:collapse;min-width:720px;}
table.spec th,table.spec td{
  padding:16px 20px;text-align:left;font-size:15px;
  border-bottom:1px solid var(--c-line);
  vertical-align:top;
}
table.spec th{
  background:var(--c-surface-2);
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--c-ink-2);
  white-space:nowrap;
}
table.spec tbody tr:last-child td{border-bottom:0;}
table.spec tbody tr:hover{background:#FBFAF6;}
table.spec td strong{color:var(--c-primary);font-weight:600;}
.state{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;}
.state-ok{color:var(--c-ok);}
.state-warn{color:var(--c-warn);}
.state-err{color:var(--c-err);}
.state::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;}

/* ---------- 条目列表 ---------- */
.entry-list{display:grid;gap:18px;}
.entry{
  display:grid;grid-template-columns:180px 1fr auto;gap:24px;align-items:center;
  padding:20px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-l);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.entry:hover{transform:translateY(-2px);border-color:var(--c-primary-l);box-shadow:var(--sh-2);}
.entry-thumb{border-radius:var(--radius-m);overflow:hidden;}
.entry-thumb img{height:110px;width:100%;object-fit:cover;}
.entry-body h3{font-size:18px;margin-bottom:8px;}
.entry:hover .entry-body h3{color:var(--c-primary);}
.entry-body p{font-size:15px;color:var(--c-ink-2);margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.entry-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:12.5px;color:var(--c-ink-3);}
.entry-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap;
}
.entry-link::after{content:"→";transition:transform .2s ease;}
.entry:hover .entry-link::after{transform:translateX(3px);}

/* ---------- 观察记录 ---------- */
.notes{
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;
}
.note{
  padding:26px;border-radius:var(--radius-l);
  background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.note time{display:block;font-size:13px;color:var(--c-ink-3);margin-bottom:10px;}
.note h3{font-size:17px;margin-bottom:10px;}
.note p{font-size:15px;color:var(--c-ink-2);margin:0;}
.empty-state{
  padding:32px;border:1px dashed var(--c-line);border-radius:var(--radius-l);
  background:var(--c-surface-2);color:var(--c-ink-2);font-size:15px;text-align:center;
}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .plus{
  position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  background:var(--c-primary-l);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transition:transform .24s ease;
}
.faq-q .plus::before{width:10px;height:2px;margin:-1px 0 0 -5px;}
.faq-q .plus::after{width:2px;height:10px;margin:-5px 0 0 -1px;}
.faq-item.is-open .faq-q .plus::after{transform:rotate(90deg) scaleY(0);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s ease,padding .28s ease;
  padding:0 4px;
}
.faq-item.is-open .faq-a{max-height:340px;padding:0 4px 20px;}
.faq-a p{margin:0;font-size:15.5px;line-height:1.85;color:var(--c-ink-2);max-width:760px;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  background:linear-gradient(120deg,var(--c-primary-d) 0%,var(--c-primary) 70%);
  padding:56px 48px;
  display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px);margin-bottom:16px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:16.5px;margin:0;max-width:560px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;border-color:#fff;}

/* ---------- 表单 ---------- */
.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-l);
  padding:28px;box-shadow:var(--sh-1);
}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.form-row input,.form-row select,.form-row textarea{
  width:100%;min-height:48px;padding:12px 14px;
  border:1px solid var(--c-line);border-radius:var(--radius-m);
  background:#FDFCF9;color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row textarea{min-height:112px;resize:vertical;line-height:1.7;}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-l);
}
.form-row.is-error input,.form-row.is-error textarea{border-color:var(--c-err);}
.form-msg{font-size:13px;color:var(--c-err);margin-top:6px;display:none;}
.form-row.is-error .form-msg{display:block;}
.form-note{font-size:13px;color:var(--c-ink-3);margin:14px 0 0;}
.form-success{
  display:none;margin-bottom:18px;padding:12px 16px;border-radius:var(--radius-m);
  background:#E6F1EA;color:var(--c-ok);font-size:14px;font-weight:600;
}
.form-success.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;background:var(--c-primary-d);color:rgba(255,255,255,.72);
  padding:72px 0 28px;font-size:14.5px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.site-footer p{line-height:1.85;margin:0;max-width:340px;}
.site-footer h4{font-size:14px;letter-spacing:.06em;color:#fff;margin-bottom:16px;font-weight:600;}
.site-footer ul li{margin-bottom:10px;}
.site-footer a{color:rgba(255,255,255,.72);display:inline-block;transition:color .2s ease,transform .2s ease;}
.site-footer a:hover{color:#fff;transform:translateX(-2px);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.58);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:10px;
  min-height:52px;padding:0 22px;border-radius:var(--radius-pill);
  background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:#ad5730;color:#fff;transform:translateY(-3px);}
.float-cta.is-tucked{transform:translateY(24px) scale(.94);}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  :root{--container:1240px;}
  .section{padding:112px 0;}
}
@media (max-width:1279px){
  .nav-links a{padding:8px 10px;font-size:14.5px;}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:block;margin-left:auto;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
  .split-media img{height:280px;}
  .compare{grid-template-columns:1fr;}
  .notes{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;}
  .entry{grid-template-columns:140px 1fr;gap:18px;}
  .entry-link{grid-column:2;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 18px;}
  .section{padding:64px 0;}
  .page-hero{margin:16px 12px 0;border-radius:var(--radius-l);}
  .page-hero-inner{padding:52px 0 48px;}
  .page-hero .hero-desc{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-facts{gap:12px 22px;margin-top:30px;}
  .cta-band{border-radius:var(--radius-l);padding:36px 22px;}
  .cta-actions{width:100%;}
  .entry{grid-template-columns:1fr;padding:16px;}
  .entry-thumb img{height:170px;}
  .entry-link{grid-column:1;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:56px 0 24px;margin-top:64px;}
  .float-cta{
    left:0;right:0;bottom:0;width:100%;justify-content:center;
    border-radius:0;min-height:56px;padding-bottom:env(safe-area-inset-bottom);
  }
  .float-cta.is-tucked{transform:none;}
  .spec-head{padding:20px;}
  table.spec th,table.spec td{padding:14px 16px;font-size:14px;}
}
@media (max-width:520px){
  .brand-text{font-size:14.5px;}
  .page-hero h1{font-size:28px;}
  .split-media{padding:8px;}
  .split-media img{height:220px;}
  .faq-q{font-size:16px;}
  .compare-col,.note,.form-card{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --c-ink:#171A18;
  --c-ink-2:#4C534C;
  --c-ink-3:#7B827B;
  --c-primary:#14544A;
  --c-primary-d:#0E3B34;
  --c-primary-l:#DEEAE5;
  --c-accent:#C4693B;
  --c-accent-l:#F6E4D9;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1EDE4;
  --c-line:#E5DFD3;
  --c-ok:#2F7D5B;
  --c-warn:#B8862F;
  --c-err:#B03A2E;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:16px;
  --radius-xl:24px;
  --radius-pill:999px;
  --sh-1:0 1px 2px rgba(23,26,24,.04),0 8px 24px rgba(23,26,24,.06);
  --sh-2:0 12px 32px rgba(20,84,74,.12);
  --container:1200px;
  --gap:24px;
  --sec-y:104px;
}
*,*::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","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,transform .2s ease}
a:hover{color:var(--c-primary-d)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.22;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(24px,3vw,36px);line-height:1.3;font-weight:700;letter-spacing:-.008em}
h3{font-size:20px;line-height:1.5;font-weight:600}
p{color:var(--c-ink-2)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:200}
.skip-link:focus{left:0;color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.site-nav{position:sticky;top:14px;z-index:80;padding:0 18px}
.nav-inner{
  position:relative;
  max-width:var(--container);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  border-radius:var(--radius-pill);
  padding:9px 12px 9px 14px;
  transition:background .25s ease,box-shadow .25s ease;
}
.site-nav.is-scrolled .nav-inner{background:rgba(255,255,255,.94);box-shadow:var(--sh-1)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--c-primary),var(--c-primary-d));
  color:#fff;border-radius:12px;
  font-size:14px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:16px;font-weight:700;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;
  font-size:15px;color:var(--c-ink-2);border-radius:var(--radius-pill);
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-l)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:5px;height:5px;border-radius:50%;
  background:var(--c-primary);transform:translateX(-50%);
}
.nav-cta{margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  align-items:center;justify-content:center;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-pill);cursor:pointer;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-panel{display:none}
.nav-panel.is-open{
  display:flex;flex-direction:column;gap:2px;
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-l);box-shadow:var(--sh-1);
  padding:10px;animation:panelIn .2s ease-out;
}
.nav-panel a{
  display:flex;align-items:center;min-height:44px;
  padding:0 14px;border-radius:var(--radius-m);
  font-size:15px;color:var(--c-ink-2);
}
.nav-panel a:hover{background:var(--c-primary-l);color:var(--c-primary)}
.nav-panel a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-l)}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;
  border-radius:var(--radius-pill);
  border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:#103F38;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-2px)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#AC5A31;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary)}
.link-more::after{content:"→";transition:transform .2s ease}
.link-more:hover::after{transform:translateX(4px)}
.tag{
  display:inline-block;padding:4px 10px;border-radius:6px;
  background:var(--c-primary-l);color:var(--c-primary);
  font-size:12px;font-weight:600;line-height:1.7;
}
.tag-accent{background:var(--c-accent-l);color:#9B5127}
.tag-line{background:transparent;border:1px solid var(--c-line);color:var(--c-ink-2)}
.sec-label{
  display:inline-block;margin-bottom:14px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--c-accent);text-transform:uppercase;
}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head p{margin-top:16px;font-size:17px;line-height:1.75}
.section{padding:var(--sec-y) 0}
.section-tight{padding:72px 0}

/* ============ 分类首屏 ============ */
.cat-hero-wrap{max-width:var(--container);margin:22px auto 0;padding:0 24px}
.cat-hero{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  min-height:420px;
  display:flex;align-items:flex-end;
  background:var(--c-primary) url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(14,59,52,.88) 12%,rgba(20,84,74,.66) 78%);
}
.cat-hero .hero-inner{position:relative;z-index:2;padding:56px 52px;max-width:820px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb span{opacity:.7}
.cat-hero h1{color:#fff;max-width:16em}
.cat-hero .hero-lead{margin-top:20px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.82);max-width:34em}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 22px;margin-top:26px}
.hero-trust li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.86)}
.hero-trust li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.cat-hero .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.cat-hero .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}

/* ============ 图文交替 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split+.split{margin-top:88px}
.split.reverse .split-media{order:2}
.split-body h3{font-size:22px;margin-bottom:16px}
.split-body p{font-size:16px;line-height:1.9}
.split-body p+p{margin-top:16px}
.split-body .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.frame{
  padding:12px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--radius-xl);
  box-shadow:var(--sh-1);
}
.frame img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-l)}
.frame figcaption{margin-top:12px;padding:0 4px 4px;font-size:13px;color:var(--c-ink-3);text-align:center}
.stat-strip{display:flex;flex-wrap:wrap;gap:28px;margin-top:26px}
.stat-strip .stat b{display:block;font-size:26px;font-weight:700;color:var(--c-primary);line-height:1.2;letter-spacing:-.02em}
.stat-strip .stat span{font-size:13px;color:var(--c-ink-3)}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:36px;margin-top:44px;max-width:900px}
.timeline::before{content:"";position:absolute;left:9px;top:10px;bottom:10px;width:2px;background:var(--c-line)}
.tl-item{position:relative;padding-bottom:36px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:6px;
  width:20px;height:20px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-primary);
  box-shadow:0 0 0 5px var(--c-primary-l);
}
.tl-item.is-key::before{background:var(--c-primary);border-color:var(--c-primary)}
.tl-time{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-accent)}
.tl-title{margin-top:6px;font-size:20px;font-weight:600}
.tl-desc{margin-top:8px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2);max-width:38em}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ============ 条目列表 ============ */
.entry-list{margin-top:12px;border-top:1px solid var(--c-line)}
.entry{
  display:block;padding:26px 4px;
  border-bottom:1px solid var(--c-line);
  transition:transform .2s ease,background .2s ease;
}
.entry:hover{transform:translateX(4px)}
.entry:hover .entry-title{color:var(--c-primary)}
.entry-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px}
.entry-title{font-size:18px;font-weight:600;color:var(--c-ink);transition:color .2s ease}
.entry-desc{font-size:15px;line-height:1.85;color:var(--c-ink-2);max-width:60em}
.entry-foot{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:14px}
.entry-time{font-size:13px;color:var(--c-ink-3)}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--c-line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transition:transform .24s ease;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{
  max-height:0;overflow:hidden;padding:0;
  font-size:15.5px;line-height:1.85;color:var(--c-ink-2);
  transition:max-height .3s ease,padding .24s ease;
}
.faq-item.is-open .faq-a{max-height:420px;padding:0 0 20px}
.faq-a p{font-size:15.5px;color:var(--c-ink-2)}

/* ============ CTA 与表单 ============ */
.cta-band{
  border-radius:var(--radius-xl);
  background:linear-gradient(140deg,var(--c-primary-d),var(--c-primary));
  color:#fff;padding:56px;display:grid;
  grid-template-columns:1.05fr 1fr;gap:48px;align-items:start;
  box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff}
.cta-band p{margin-top:16px;color:rgba(255,255,255,.78);font-size:16px;line-height:1.85}
.cta-band .cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-band .cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-band .cta-points li::before{content:"—";color:var(--c-accent);font-weight:700}
.form-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-l);padding:28px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:rgba(255,255,255,.9);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;
  background:rgba(255,255,255,.96);
  border:1px solid rgba(255,255,255,.3);border-radius:var(--radius-m);
  font-size:15px;font-family:inherit;color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(20,84,74,.28);
}
.field .hint{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,.6)}
.form-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.62)}
.form-status{
  display:none;margin-bottom:18px;padding:12px 14px;border-radius:var(--radius-m);
  background:rgba(47,125,91,.2);border:1px solid rgba(47,125,91,.5);
  color:#DFF3E8;font-size:14px;
}
.form-status.is-show{display:block}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;background:var(--c-primary-d);color:rgba(255,255,255,.72);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22)}
.site-footer p{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.85;max-width:26em}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.site-footer ul li{margin-bottom:10px;font-size:14.5px}
.site-footer a{color:rgba(255,255,255,.72);display:inline-block;transition:color .2s ease,transform .2s ease}
.site-footer a:hover{color:#fff;transform:translateX(-2px)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.56);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 22px;border-radius:var(--radius-pill);
  background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-2);
  opacity:0;transform:translateY(8px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.float-cta.is-show{opacity:1;transform:none;pointer-events:auto}
.float-cta:hover{background:#AC5A31;color:#fff}
.float-cta.is-hidden{opacity:0;pointer-events:none}

/* ============ 响应式 ============ */
@media (min-width:1280px){
  .container{max-width:1240px}
  .cat-hero-wrap{max-width:1240px}
}
@media (max-width:1100px){
  .cta-band{grid-template-columns:1fr;gap:36px;padding:44px}
}
@media (max-width:991px){
  :root{--sec-y:80px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .split{grid-template-columns:1fr;gap:32px}
  .split+.split{margin-top:64px}
  .split.reverse .split-media{order:0}
  .cat-hero .hero-inner{padding:44px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sec-y:64px}
  body{font-size:15px;line-height:1.88}
  .container{padding:0 18px}
  .site-nav{padding:0 12px;top:10px}
  .nav-inner{padding:8px 10px}
  .brand-text{font-size:15px}
  .cat-hero-wrap{padding:0 18px;margin-top:16px}
  .cat-hero{min-height:360px}
  .cat-hero .hero-inner{padding:34px 22px}
  .cat-hero h1{font-size:28px}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .frame{padding:10px}
  .cta-band{padding:32px 22px;border-radius:var(--radius-l)}
  .form-card{padding:22px}
  .timeline{padding-left:30px}
  .timeline::before{left:6px}
  .tl-item::before{left:-30px;width:16px;height:16px;box-shadow:0 0 0 4px var(--c-primary-l)}
  .tl-title{font-size:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:64px;padding:52px 0 24px}
  .float-cta{
    left:0;right:0;bottom:0;width:100%;
    justify-content:center;height:56px;padding:0 18px;
    border-radius:0;padding-bottom:env(safe-area-inset-bottom);
  }
  .float-cta.is-show{transform:none}
}
@media (max-width:520px){
  .stat-strip{gap:20px}
  .faq-q{font-size:16px;padding:18px 0}
  .entry-title{font-size:17px}
  .btn{padding:12px 20px}
  .cat-hero h1{font-size:25px}
}