/* roulang page: index */
:root{
  --primary-600:#0F6357;
  --primary-700:#0A4A41;
  --primary-100:#E2F0EC;
  --accent-500:#E0763A;
  --accent-100:#FDEBDD;
  --ink-900:#101A18;
  --ink-700:#2C3A37;
  --ink-500:#5A6B67;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0D1614;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:20px;
  --shadow-1:0 1px 2px rgba(16,26,24,.04), 0 1px 3px rgba(16,26,24,.06);
  --shadow-2:0 8px 24px -12px rgba(16,26,24,.18);
  --font-head:"PingFang SC","Microsoft YaHei","Source Han Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink-900);
  font-family:var(--font-body);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:600;margin:0;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media(max-width:639px){.container{padding:0 16px;}}
.section{padding:88px 0;}
@media(max-width:1023px){.section{padding:64px 0;}}
@media(max-width:639px){.section{padding:48px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;position:relative;padding-left:16px;display:flex;align-items:center;}
.section-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:.86em;background:var(--primary-600);border-radius:2px;}
.section-head .head-note{font-size:13px;color:var(--ink-500);letter-spacing:.02em;max-width:420px;line-height:1.8;}
@media(max-width:767px){.section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;flex-shrink:0;}
.brand-text{font-family:var(--font-head);font-size:16px;font-weight:600;color:var(--ink-900);letter-spacing:-.01em;line-height:1.2;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;color:var(--ink-700);border-radius:6px;
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--primary-700);background:var(--primary-100);}
.nav-link.active{color:var(--primary-700);}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-14px;height:2px;
  background:var(--primary-600);border-radius:2px;
}
.nav-cta{flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-700);border-radius:2px;position:relative;transition:background .2s;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-700);border-radius:2px;
  transition:transform .25s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg);}
@media(max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-wrap{height:60px;gap:12px;}
}
@media(max-width:639px){
  .brand-text{font-size:14px;max-width:150px;}
  .brand-mark{width:28px;height:28px;}
}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(13,22,20,.42);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;
  background:#fff;border-radius:20px 0 0 20px;padding:24px 20px;
  transform:translateX(102%);transition:transform .3s ease-out;z-index:90;
  box-shadow:-12px 0 40px rgba(16,26,24,.16);overflow-y:auto;
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-title{font-size:13px;letter-spacing:.14em;color:var(--ink-500);margin-bottom:12px;}
.drawer-link{
  display:flex;align-items:center;height:52px;font-size:15px;color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--primary-700);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:24px;}
.drawer-contact{font-size:13px;color:var(--ink-500);margin-top:14px;line-height:1.8;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:500;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary-600);color:#fff;}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(15,99,87,.4);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900);}
.btn-ghost:hover{border-color:var(--primary-600);color:var(--primary-700);}
.btn-ghost:active{transform:translateY(1px);}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(15,99,87,.28);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;
  color:var(--primary-600);border-bottom:1px solid transparent;padding-bottom:2px;
  transition:border-color .18s ease,color .18s ease;
}
.btn-link:hover{border-bottom-color:var(--primary-600);color:var(--primary-700);}
.btn-block{width:100%;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:13px;letter-spacing:.02em;line-height:1;white-space:nowrap;
}
.badge-green{background:var(--primary-100);color:var(--primary-700);}
.badge-orange{background:var(--accent-100);color:#A9521C;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;
  color:var(--primary-700);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px;}

/* ---------- hero ---------- */
.hero{position:relative;padding:72px 0 96px;overflow:hidden;}
.hero-contour{position:absolute;inset:0;width:100%;height:100%;opacity:.06;pointer-events:none;}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:4px;
  background:linear-gradient(135deg,#0F6357 0%,#148072 100%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.22;font-weight:600;letter-spacing:-.01em;margin:18px 0 18px;}
.hero-sub{font-size:16px;line-height:1.9;color:var(--ink-700);max-width:540px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags span{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:var(--primary-100);color:var(--primary-700);font-size:13px;letter-spacing:.02em;
}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:20px;box-shadow:var(--shadow-2);
}
.hero-float{
  position:absolute;left:-20px;bottom:-22px;background:#fff;border-radius:var(--radius-md);
  padding:16px 20px;box-shadow:var(--shadow-2);border:1px solid var(--line);min-width:170px;
}
.hero-float strong{
  display:block;font-family:var(--font-head);font-size:28px;line-height:1.1;
  color:var(--primary-700);font-variant-numeric:tabular-nums;
}
.hero-float span{display:block;font-size:13px;color:var(--ink-500);margin-top:4px;}
@media(max-width:1023px){
  .hero{padding:48px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-sub{max-width:none;}
  .hero-media{order:2;}
}
@media(max-width:639px){
  .hero{padding:36px 0 60px;}
  .hero-media img{aspect-ratio:16/11;min-height:220px;max-height:260px;}
  .hero-float{display:none;}
  .hero-cta .btn{width:100%;}
}

/* ---------- metrics ---------- */
.metrics-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.metric{padding:30px 26px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric-num{
  font-family:var(--font-head);font-size:clamp(26px,3vw,38px);line-height:1.15;
  color:var(--primary-700);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.metric-num.is-accent{color:var(--accent-500);}
.metric-label{font-size:13px;color:var(--ink-500);letter-spacing:.02em;margin-top:8px;line-height:1.75;}
@media(max-width:767px){
  .metrics-band{grid-template-columns:repeat(2,1fr);}
  .metric{padding:22px 18px;}
  .metric:nth-child(2n){border-right:0;}
  .metric:nth-child(n+3){border-top:1px solid var(--line);}
}

/* ---------- cards ---------- */
.card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:14px;padding:24px;box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.card-no{
  position:absolute;top:18px;right:20px;font-size:12px;letter-spacing:.08em;
  color:#9BB7B0;font-variant-numeric:tabular-nums;
}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.card-icon svg{width:22px;height:22px;stroke:var(--primary-700);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.card h3{font-size:18px;line-height:1.45;margin-bottom:10px;}
.card p{font-size:15px;color:var(--ink-700);line-height:1.85;}
.card-link{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary-600);font-weight:500;}
.card-link svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s ease;}
.card:hover .card-link svg{transform:translateX(3px);}
.svc-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.svc-lg{grid-column:span 6;}
.svc-sm{grid-column:span 4;}
.svc-sm h3{font-size:17px;}
.svc-sm p{font-size:14px;}
@media(max-width:1023px){
  .svc-lg{grid-column:span 12;}
  .svc-sm{grid-column:span 6;}
}
@media(max-width:639px){
  .svc-sm{grid-column:span 12;}
  .card{padding:20px;}
}

/* ---------- news ---------- */
.news-feature{
  display:grid;grid-template-columns:1.05fr 1fr;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.news-feature:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.news-feature-media{display:block;height:100%;min-height:280px;overflow:hidden;}
.news-feature-media img{width:100%;height:100%;object-fit:cover;}
.news-feature-body{padding:32px;display:flex;flex-direction:column;gap:14px;}
.news-feature-body h3{font-size:22px;line-height:1.45;}
.news-feature-body h3 a{transition:color .18s ease;}
.news-feature-body h3 a:hover{color:var(--primary-700);}
.news-feature-body p{
  font-size:15px;color:var(--ink-700);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-500);letter-spacing:.02em;font-variant-numeric:tabular-nums;margin-top:auto;}
.news-meta .dot-sep{width:1px;height:12px;background:var(--line);}
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px;}
.news-row{
  display:flex;flex-direction:column;gap:12px;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.news-row:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.news-row h3{
  font-size:17px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-row h3 a{transition:color .18s ease;}
.news-row h3 a:hover{color:var(--primary-700);}
.news-row p{
  font-size:14px;color:var(--ink-500);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-empty{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:56px 24px;text-align:center;box-shadow:var(--shadow-1);
}
.news-empty svg{width:44px;height:44px;margin:0 auto 16px;stroke:var(--primary-600);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.news-empty p{color:var(--ink-500);font-size:15px;margin-bottom:20px;}
@media(max-width:1023px){
  .news-feature{grid-template-columns:1fr;}
  .news-feature-media{min-height:220px;max-height:260px;}
  .news-list{grid-template-columns:1fr 1fr;}
}
@media(max-width:639px){
  .news-feature-body{padding:22px;}
  .news-feature-body h3{font-size:19px;}
  .news-list{grid-template-columns:1fr;}
}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:5fr auto 7fr;gap:20px;align-items:center;}
.compare-col{border-radius:var(--radius-lg);padding:32px;border:1px solid var(--line);}
.compare-col h3{font-size:19px;margin-bottom:18px;line-height:1.4;}
.compare-col ul{display:flex;flex-direction:column;gap:12px;}
.compare-col li{position:relative;padding-left:20px;font-size:15px;line-height:1.8;}
.compare-col li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.42;}
.compare-self{background:var(--paper);color:var(--ink-500);}
.compare-self h3{color:var(--ink-700);}
.compare-help{background:var(--primary-100);color:var(--primary-700);}
.compare-help li::before{background:var(--primary-600);opacity:1;}
.compare-help li:first-child{
  border-left:3px solid var(--accent-500);padding-left:14px;margin-left:-14px;
}
.compare-help li:first-child::before{left:14px;}
.compare-arrow{display:flex;align-items:center;justify-content:center;}
.compare-arrow svg{width:34px;height:34px;stroke:var(--primary-600);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
@media(max-width:1023px){
  .compare{grid-template-columns:1fr;gap:16px;}
  .compare-arrow svg{transform:rotate(90deg);}
  .compare-col{padding:24px;}
  .compare-help li:first-child{border-left:0;padding-left:20px;margin-left:0;border-top:3px solid var(--accent-500);padding-top:12px;}
  .compare-help li:first-child::before{left:0;}
}

/* ---------- faq ---------- */
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 64px 22px 24px;font-size:17px;font-weight:600;color:var(--ink-900);
  line-height:1.55;transition:background-color .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#FAF9F6;}
.faq-item summary::after{
  content:"+";position:absolute;right:26px;top:22px;font-size:20px;line-height:1.4;
  color:var(--primary-600);font-weight:400;transition:transform .2s ease;
}
.faq-item[open] summary{background:rgba(226,240,236,.4);}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-item[open] summary::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary-600);}
.faq-body{padding:0 64px 22px 24px;font-size:15px;line-height:1.9;color:var(--ink-700);}
@media(max-width:639px){
  .faq-item summary{font-size:16px;padding:18px 52px 18px 18px;}
  .faq-item summary::after{right:18px;top:18px;}
  .faq-body{padding:0 18px 18px;}
}

/* ---------- form ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.contact-copy h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:16px;}
.contact-copy > p{font-size:15px;color:var(--ink-700);line-height:1.9;margin-bottom:22px;}
.contact-points{display:flex;flex-direction:column;gap:14px;margin-bottom:26px;}
.contact-points li{position:relative;padding-left:22px;font-size:15px;color:var(--ink-700);line-height:1.8;}
.contact-points li::before{
  content:"";position:absolute;left:0;top:.6em;width:8px;height:8px;border-radius:2px;
  background:var(--accent-500);opacity:.8;
}
.contact-info{
  border-top:1px solid var(--line);padding-top:20px;font-size:14px;color:var(--ink-500);line-height:1.9;
}
.contact-info strong{color:var(--ink-900);font-weight:600;}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);padding:32px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;color:var(--ink-700);letter-spacing:.02em;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:10px;
  background:#fff;font-size:15px;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:124px;padding:12px 14px;line-height:1.75;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary-600);box-shadow:0 0 0 3px rgba(15,99,87,.16);
}
.field-full{grid-column:1/-1;}
.form-tip{font-size:13px;color:var(--ink-500);line-height:1.8;margin-top:14px;}
@media(max-width:1023px){
  .contact-wrap{grid-template-columns:1fr;gap:32px;}
}
@media(max-width:639px){
  .form-card{padding:20px;}
  .form-grid{grid-template-columns:1fr;}
}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#A8B5B1;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:30px;height:30px;}
.footer-brand span{font-family:var(--font-head);font-size:16px;color:#fff;font-weight:600;}
.footer-desc{font-size:14px;line-height:1.9;color:#A8B5B1;max-width:320px;}
.footer-contact{margin-top:16px;font-size:14px;line-height:1.9;color:#8FA09B;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#A8B5B1;transition:color .18s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:#7D8E8A;letter-spacing:.02em;
}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media(max-width:639px){
  .site-footer{padding:44px 0 0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{margin-top:36px;flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
:root{
  --primary-600:#0F6357;
  --primary-700:#0A4A41;
  --primary-800:#148072;
  --primary-100:#E2F0EC;
  --accent-500:#E0763A;
  --accent-100:#FDEBDD;
  --ink-900:#101A18;
  --ink-700:#2C3A37;
  --ink-500:#5A6B67;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0D1614;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --shadow-1:0 1px 2px rgba(16,26,24,.04), 0 1px 3px rgba(16,26,24,.06);
  --shadow-2:0 8px 24px -12px rgba(16,26,24,.18);
  --font-title:"PingFang SC","Microsoft YaHei","Source Han Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);color:var(--ink-900);font-weight:600}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid rgba(15,99,87,.45);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:640px){.container{padding:0 16px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;flex:0 0 auto}
.brand-text{font-family:var(--font-title);font-size:17px;font-weight:600;color:var(--ink-900);letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:8px 12px;border-radius:6px;
  font-size:15px;color:var(--ink-700);transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--primary-700);background:var(--primary-100)}
.nav-link.active{color:var(--primary-600);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-4px;height:2px;border-radius:2px;background:var(--primary-600);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary-600);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghostline{background:var(--surface);border:1px solid var(--line);color:var(--ink-900)}
.btn-ghostline:hover{border-color:var(--primary-600);color:var(--primary-600)}
.btn-text{color:var(--primary-600);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px}
.nav-cta{height:44px;padding:0 20px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:8px;border-radius:10px;
  align-items:center;justify-content:center;border:1px solid var(--line);background:var(--surface);
}
.nav-toggle span{position:relative;width:20px;height:2px;background:var(--ink-900);display:block;border-radius:2px;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .22s ease,top .22s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

/* ---------- Drawer ---------- */
.nav-scrim{
  position:fixed;inset:0;background:rgba(13,22,20,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:70;
}
.nav-scrim.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:var(--surface);
  border-radius:var(--r-xl) 0 0 var(--r-xl);z-index:80;
  transform:translateX(102%);transition:transform .28s cubic-bezier(.32,.72,.28,1);
  display:flex;flex-direction:column;padding:20px 0 24px;box-shadow:var(--shadow-2);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 14px;border-bottom:1px solid var(--line)}
.drawer-title{font-family:var(--font-title);font-size:15px;font-weight:600;color:var(--ink-900)}
.drawer-close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:10px;color:var(--ink-500);font-size:20px;line-height:1}
.drawer-close:hover{background:var(--paper);color:var(--ink-900)}
.drawer-nav{flex:1;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;padding:0 20px;font-size:15px;color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--primary-600);background:rgba(226,240,236,.6)}
.drawer-foot{padding:18px 20px 0}
.drawer-foot .btn{width:100%}
.drawer-note{margin-top:12px;font-size:13px;color:var(--ink-500)}

/* ---------- Page intro ---------- */
.page-head{padding:32px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;letter-spacing:.02em;color:var(--ink-500)}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--primary-600)}
.crumb .sep{color:#BFB9AC}
.crumb .now{color:var(--ink-500);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero{padding:20px 0 0}
.article-hero h1{
  font-size:clamp(26px,3.4vw,38px);line-height:1.35;letter-spacing:-.01em;font-weight:600;max-width:24ch;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--ink-500);letter-spacing:.02em}
.article-meta .vline{width:1px;height:12px;background:var(--line)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:13px;background:var(--primary-100);color:var(--primary-600);font-weight:600;
}
.badge-accent{background:var(--accent-100);color:#B4551E}

/* ---------- Article layout ---------- */
.article-block{padding:36px 0 8px}
.article-shell{display:block}
.article-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px 40px;box-shadow:var(--shadow-1);
}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-700)}
.article-body > * + *{margin-top:1.15em}
.article-body p{margin:0;line-height:1.9}
.article-body h2{
  position:relative;font-size:clamp(20px,2.2vw,26px);line-height:1.4;margin-top:40px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1em;border-radius:2px;background:var(--primary-600);
}
.article-body h3{font-size:18px;line-height:1.5;margin-top:28px;color:var(--primary-700)}
.article-body ul,.article-body ol{line-height:1.85;padding-left:2px}
.article-body li{position:relative;padding-left:20px;margin-top:.5em}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--primary-600);
}
.article-body ol{counter-reset:olitem}
.article-body ol > li{counter-increment:olitem;padding-left:26px}
.article-body ol > li::before{
  content:counter(olitem);position:absolute;left:0;top:0;font-size:13px;font-weight:700;color:var(--primary-600);
  font-variant-numeric:tabular-nums;line-height:1.9;
}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;background:var(--paper);border-left:3px solid var(--accent-500);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-700);font-size:16px;
}
.article-body img{border-radius:var(--r-md);margin:24px 0 8px;width:100%}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-500);margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.article-body th{background:var(--primary-100);color:var(--primary-700);text-align:left;font-weight:600}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FBFAF7}
.article-body a{color:var(--primary-600);text-decoration:underline;text-underline-offset:3px}
.article-body strong{color:var(--ink-900)}

/* ---------- TOC ---------- */
.article-toc{display:none}
.toc-inner{
  border-left:1px solid var(--line);padding-left:18px;
}
.toc-title{font-size:13px;letter-spacing:.06em;color:var(--ink-500);margin-bottom:12px}
.toc-list li{margin-bottom:8px}
.toc-link{
  display:block;font-size:14px;line-height:1.6;color:var(--ink-500);border-left:2px solid transparent;
  padding:2px 0 2px 10px;margin-left:-19px;transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.toc-link:hover{color:var(--primary-600)}
.toc-link.is-active{color:var(--primary-600);border-left-color:var(--primary-600);background:rgba(226,240,236,.5)}
.toc-sub{padding-left:16px}

/* ---------- Article footer utilities ---------- */
.article-foot{max-width:760px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--primary-100);color:var(--primary-600);font-size:13px;transition:background-color .18s ease;
}
.tag:hover{background:#D3E8E1}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px;font-size:13px;color:var(--ink-500)}
.share-row span.share-label{color:var(--ink-700);font-weight:600}
.share-row button{font-size:13px;color:var(--ink-500);transition:color .18s ease}
.share-row button:hover{color:var(--primary-600)}
.back-cat{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:14px;color:var(--primary-600);font-weight:600}
.back-cat:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- Empty state ---------- */
.empty-state{
  max-width:760px;text-align:center;padding:48px 24px;border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--paper);
}
.empty-state svg{margin:0 auto 16px}
.empty-state h3{font-size:19px;margin-bottom:8px}
.empty-state p{font-size:15px;color:var(--ink-500);margin-bottom:20px}

/* ---------- Sections ---------- */
.section{padding:72px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35}
.section-head .section-sub{margin-top:10px;font-size:15px;color:var(--ink-500);max-width:56ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--primary-600);
  font-weight:600;margin-bottom:12px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--primary-600)}

/* ---------- Related cards ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px;
  box-shadow:var(--shadow-1);transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.related-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.related-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--paper)}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .thumb img{transform:scale(1.04)}
.related-card .rc-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.related-card h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.9em}
.related-card .rc-meta{margin-top:auto;padding-top:14px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-500)}
.rc-link{margin-top:14px;font-size:14px;font-weight:600;color:var(--primary-600);display:inline-flex;align-items:center;gap:6px}
.related-card:hover .rc-link{gap:10px}
.rc-link{cursor:pointer}

/* ---------- Info strip ---------- */
.info-strip{
  display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);
}
.info-cell{padding:26px 24px;border-right:1px solid var(--line)}
.info-cell:last-child{border-right:none}
.info-num{font-size:32px;font-weight:600;color:var(--primary-700);font-variant-numeric:tabular-nums;line-height:1.1}
.info-num.accent{color:var(--accent-500)}
.info-label{margin-top:10px;font-size:13px;color:var(--ink-500);letter-spacing:.02em}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color .18s ease;
}
.faq-item[open]{border-color:#CFE3DC}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;line-height:1;color:var(--primary-600);font-weight:400;flex:0 0 auto;transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item[open] summary{background:rgba(226,240,236,.4)}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--primary-600);
}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-700);border-top:1px solid var(--line);padding-top:18px}

/* ---------- CTA form ---------- */
.cta-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--shadow-1);
  padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;
}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35}
.cta-copy p{margin-top:14px;font-size:15px;color:var(--ink-500);max-width:44ch}
.cta-points{margin-top:24px;display:grid;gap:14px}
.cta-points li{position:relative;padding-left:26px;font-size:15px;line-height:1.7;color:var(--ink-700)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.55em;width:14px;height:8px;border-left:2px solid var(--primary-600);border-bottom:2px solid var(--primary-600);
  transform:rotate(-45deg);
}
.cta-contact{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-500);line-height:1.9}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:32px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--ink-700);letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;border:1px solid var(--line);border-radius:10px;background:var(--surface);
  padding:12px 14px;font-size:15px;color:var(--ink-900);transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:110px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9AA8A4}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary-600);box-shadow:0 0 0 3px rgba(15,99,87,.16);
}
.field .hint{font-size:12px;color:var(--ink-500)}
.form-card .btn{width:100%;margin-top:22px}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-500);line-height:1.7}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#A8B5B1;margin-top:0;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand span{font-family:var(--font-title);font-size:16px;color:#fff;font-weight:600}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;max-width:36ch}
.footer-contact{margin-top:16px;font-size:14px;line-height:1.9;color:#8FA09B}
.footer-col h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#A8B5B1}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#8FA09B;
}

/* ---------- Responsive ---------- */
@media (min-width:1280px){
  .article-shell{display:grid;grid-template-columns:minmax(0,760px) 180px;gap:56px;justify-content:center;align-items:start}
  .article-toc{display:block;position:sticky;top:96px}
  .article-card{padding:40px 48px}
}
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-wrap{grid-template-columns:1fr;gap:32px;padding:36px}
  .related-grid{grid-template-columns:1fr 1fr}
  .related-grid .related-card:last-child{display:none}
  .info-strip{grid-template-columns:1fr 1fr}
  .info-cell:nth-child(2){border-right:none}
  .info-cell:nth-child(1),.info-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .section{padding:64px 0}
}
@media (max-width:767px){
  .nav-wrap{height:60px;gap:12px}
  .brand-text{font-size:14px;white-space:normal;line-height:1.25;max-width:190px}
  .article-card{padding:28px 20px}
  .related-grid{grid-template-columns:1fr}
  .related-grid .related-card:nth-child(2){display:none}
  .form-grid{grid-template-columns:1fr}
  .cta-wrap{padding:28px 20px;border-radius:var(--r-lg)}
  .form-card{padding:22px}
  .section{padding:48px 0}
  .article-body{font-size:17px}
  .info-num{font-size:28px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .article-hero h1{max-width:none}
}
@media (max-width:520px){
  .article-card{padding:22px 16px}
  .info-cell{padding:20px 16px}
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-answer{padding:16px 18px 18px}
  .article-body h2{margin-top:32px}
}

/* roulang page: category1 */
:root{
  --primary-600:#0F6357;
  --primary-700:#0A4A41;
  --primary-100:#E2F0EC;
  --accent-500:#E0763A;
  --accent-100:#FDEBDD;
  --ink-900:#101A18;
  --ink-700:#2C3A37;
  --ink-500:#5A6B67;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0D1614;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:20px;
  --shadow-1:0 1px 2px rgba(16,26,24,.04), 0 1px 3px rgba(16,26,24,.06);
  --shadow-2:0 8px 24px -12px rgba(16,26,24,.18);
  --font-title:"PingFang SC","Microsoft YaHei","Source Han Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background-color:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding-top:88px;padding-bottom:88px}
.section-tight{padding-top:56px;padding-bottom:56px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.nav-wrap{display:flex;align-items:center;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;flex-shrink:0}
.brand-text{font-family:var(--font-title);font-size:17px;font-weight:600;letter-spacing:-.01em;color:var(--ink-900)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:6px;
  font-size:15px;color:var(--ink-700);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--primary-700);background-color:var(--primary-100)}
.nav-link.active{color:var(--primary-700);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  background-color:var(--primary-600);border-radius:2px;
}
.nav-cta{margin-left:12px;height:42px;padding:0 20px;font-size:15px}
.nav-toggle{
  display:none;position:relative;
  width:44px;height:44px;margin-left:auto;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  cursor:pointer;
}
.nav-toggle span{position:absolute;left:12px;right:12px;top:50%;height:2px;margin-top:-1px;background:var(--ink-900);border-radius:2px;transition:opacity .2s ease}
.nav-toggle::before,.nav-toggle::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;background:var(--ink-900);border-radius:2px;
  transition:transform .22s ease,top .22s ease;
}
.nav-toggle::before{top:calc(50% - 8px)}
.nav-toggle::after{top:calc(50% + 6px)}
.nav-toggle.is-open span{opacity:0}
.nav-toggle.is-open::before{top:50%;transform:rotate(45deg)}
.nav-toggle.is-open::after{top:50%;transform:rotate(-45deg)}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;
  width:84vw;max-width:360px;
  background:var(--surface);
  border-radius:20px 0 0 20px;
  box-shadow:-12px 0 40px -18px rgba(16,26,24,.3);
  transform:translateX(102%);
  transition:transform .28s ease;
  padding:24px 20px;display:flex;flex-direction:column;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:14px;color:var(--ink-500);letter-spacing:.02em}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:var(--surface);cursor:pointer;font-size:16px;line-height:1;color:var(--ink-700)}
.drawer-link{
  display:flex;align-items:center;height:52px;
  border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink-700);
}
.drawer-link:hover{color:var(--primary-700)}
.drawer-link.active{color:var(--primary-700);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:20px}
.drawer-contact{font-size:13px;color:var(--ink-500);line-height:1.7;margin-top:12px}
.nav-scrim{position:fixed;inset:0;z-index:80;background:rgba(16,26,24,.42);opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease}
.nav-scrim.is-open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{
  background-color:var(--primary-600);color:#fff;
  box-shadow:0 1px 2px rgba(16,26,24,.06);
}
.btn-primary:hover{background-color:var(--primary-700);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background-color:var(--surface);border-color:var(--line);color:var(--ink-900)}
.btn-secondary:hover{border-color:var(--primary-600);color:var(--primary-600)}
.btn-secondary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--primary-600);height:auto;padding:0;border:0;text-decoration:underline;text-underline-offset:4px;font-weight:600}
.btn-ghost:hover{color:var(--primary-700)}
.btn-block{width:100%}
.btn:focus-visible,.nav-toggle:focus-visible,.drawer-close:focus-visible,.anchor-link:focus-visible,.tab-link:focus-visible{
  outline:2px solid rgba(15,99,87,.4);outline-offset:2px;
}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:13px;line-height:1;
  background-color:var(--primary-100);color:var(--primary-700);letter-spacing:.02em;
}
.badge-accent{background-color:var(--accent-100);color:var(--accent-500)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);letter-spacing:.02em;padding:20px 0 16px}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--primary-700)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-500)}

/* ---------- Hero ---------- */
.page-hero{padding-bottom:8px}
.hero-banner{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  min-height:200px;
  display:flex;align-items:flex-end;
  border:1px solid var(--line);
}
.hero-banner-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-banner-mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,99,87,.88) 0%,rgba(15,99,87,.62) 46%,rgba(13,22,20,.42) 100%);
}
.hero-banner-inner{position:relative;z-index:2;padding:32px 32px 30px;max-width:760px}
.page-title{
  font-family:var(--font-title);
  font-size:clamp(26px,3.4vw,38px);
  line-height:1.28;font-weight:600;letter-spacing:-.01em;
  color:#fff;margin-top:14px;
}
.page-sub{color:rgba(255,255,255,.86);font-size:15px;line-height:1.7;margin-top:12px;max-width:620px}

/* ---------- 移动端锚点标签条 ---------- */
.anchor-tabs{
  display:none;gap:8px;overflow-x:auto;padding:4px 0 10px;
  -webkit-overflow-scrolling:touch;scrollbar-width:none;
}
.anchor-tabs::-webkit-scrollbar{display:none}
.tab-link{
  flex:0 0 auto;white-space:nowrap;
  padding:9px 15px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);
  font-size:13px;color:var(--ink-700);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.tab-link:hover{border-color:var(--primary-600);color:var(--primary-700)}
.tab-link.active{background-color:var(--primary-600);border-color:var(--primary-600);color:#fff;font-weight:600}

/* ---------- 内容网格 ---------- */
.content-grid{display:grid;grid-template-columns:200px minmax(0,1fr);gap:40px;align-items:start}
.anchor-col{position:sticky;top:96px}
.anchor-title{font-size:13px;color:var(--ink-500);letter-spacing:.06em;padding:0 12px 10px}
.anchor-link{
  display:block;height:40px;line-height:40px;padding:0 12px;
  border-left:2px solid transparent;border-radius:0 8px 8px 0;
  font-size:14px;color:var(--ink-700);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.anchor-link:hover{color:var(--primary-700);background-color:rgba(226,240,236,.6)}
.anchor-link.active{color:var(--primary-700);font-weight:600;background-color:var(--primary-100);border-left-color:var(--primary-600)}
.anchor-side-note{margin-top:20px;padding:16px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);font-size:13px;color:var(--ink-500);line-height:1.7}

/* ---------- 分组 ---------- */
.group{padding-bottom:56px}
.group:last-child{padding-bottom:0}
.section-bar{position:relative;padding-left:14px}
.section-bar::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background-color:var(--primary-600)}
.group-title{font-family:var(--font-title);font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:600;letter-spacing:-.01em}
.group-lead{font-size:15px;color:var(--ink-500);line-height:1.8;margin-top:10px;max-width:680px}
.entry-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.entry-card{
  display:flex;align-items:center;gap:18px;
  padding:18px 22px;
  background-color:var(--surface);
  border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease,transform .18s ease,background-color .18s ease;
}
.entry-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);background-color:var(--paper)}
.entry-num{
  flex:0 0 auto;min-width:34px;
  font-size:12px;letter-spacing:.08em;color:var(--primary-600);
  font-variant-numeric:tabular-nums;
}
.entry-body{flex:1 1 auto;min-width:0}
.entry-title{font-size:17px;font-weight:600;line-height:1.45;color:var(--ink-900)}
.entry-desc{font-size:14px;color:var(--ink-500);line-height:1.7;margin-top:4px}
.entry-arrow{
  flex:0 0 auto;width:34px;height:34px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--primary-600);
  transition:transform .18s ease,border-color .18s ease,background-color .18s ease;
}
.entry-card:hover .entry-arrow{transform:translateX(2px);border-color:var(--primary-600);background-color:var(--primary-100)}

/* ---------- 图文自查区块 ---------- */
.check-panel{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:0;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--surface);box-shadow:var(--shadow-1);
  margin-bottom:56px;
}
.check-media{position:relative;min-height:280px}
.check-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.check-body{padding:32px}
.check-list{margin-top:18px;display:flex;flex-direction:column}
.check-item{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-700);line-height:1.7}
.check-item:last-child{border-bottom:0}
.check-item svg{flex:0 0 auto;margin-top:5px}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:26px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line);transition:background-color .18s ease}
.faq-item:last-child{border-bottom:0}
.faq-item.is-open{background-color:rgba(226,240,236,.4);box-shadow:inset 3px 0 0 var(--primary-600)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;
}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .22s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background-color:var(--primary-600);border-radius:2px}
.faq-icon::before{left:2px;right:2px;top:50%;height:2px;margin-top:-1px}
.faq-icon::after{top:2px;bottom:2px;left:50%;width:2px;margin-left:-1px;transition:opacity .22s ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;color:var(--ink-700);line-height:1.85;max-width:720px}
.faq-item.is-open .faq-a{display:block}

/* ---------- CTA 表单 ---------- */
.cta-band{background-color:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.cta-point{display:flex;gap:12px;font-size:15px;color:var(--ink-700);line-height:1.75}
.cta-point svg{flex:0 0 auto;margin-top:5px}
.cta-contact{margin-top:26px;padding-top:22px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-500);line-height:1.9}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:32px}
.form-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px}
.field{margin-bottom:18px}
.field-label{display:block;font-size:13px;color:var(--ink-700);letter-spacing:.02em;margin-bottom:8px}
.field-input{
  width:100%;height:48px;padding:0 14px;
  background-color:var(--surface);
  border:1px solid var(--line);border-radius:10px;
  font-size:15px;color:var(--ink-900);
  transition:border-color .18s ease,box-shadow .18s ease;
  appearance:none;
}
.field-textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;min-height:112px}
.field-input::placeholder{color:#9AA6A2}
.field-input:focus{outline:none;border-color:var(--primary-600);box-shadow:0 0 0 3px rgba(15,99,87,.16)}
.field-input.is-error{border-color:var(--accent-500);box-shadow:0 0 0 3px rgba(224,118,58,.14)}
.field-error{display:block;font-size:13px;color:var(--accent-500);margin-top:6px}
.form-note{margin-top:14px;font-size:14px;color:var(--primary-700);background-color:var(--primary-100);border-radius:10px;padding:12px 14px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background-color:var(--dark);color:#A8B5B1;padding-top:72px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff}
.footer-brand .brand-mark{width:36px;height:36px}
.footer-brand span{font-family:var(--font-title);font-size:16px;font-weight:600;color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:#A8B5B1;margin-top:14px;max-width:340px}
.footer-contact{font-size:13px;line-height:1.9;color:#8D9A96;margin-top:14px}
.footer-col h4{font-size:14px;color:#fff;font-weight:600;letter-spacing:.02em;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#A8B5B1;transition:color .18s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding:20px 0;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8D9A96;letter-spacing:.02em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:block}
  .section{padding-top:64px;padding-bottom:64px}
  .content-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .anchor-col{display:none}
  .anchor-tabs{display:flex}
  .check-panel{grid-template-columns:minmax(0,1fr)}
  .check-media{min-height:220px}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .hero-banner-inner{padding:26px 24px}
}
@media (min-width:1024px){
  .nav-drawer{display:none}
  .nav-scrim{display:none}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding-top:48px;padding-bottom:48px}
  .nav-wrap{height:60px}
  .brand-text{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:56vw}
  .entry-card{padding:16px;gap:12px;align-items:flex-start;flex-wrap:wrap}
  .entry-arrow{width:32px;height:32px}
  .form-grid{grid-template-columns:minmax(0,1fr)}
  .form-card{padding:22px}
  .check-body{padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a{padding:0 18px 20px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
  --primary-600:#0F6357;
  --primary-700:#0A4A41;
  --primary-100:#E2F0EC;
  --accent-500:#E0763A;
  --accent-100:#FDEBDD;
  --ink-900:#101A18;
  --ink-700:#2C3A37;
  --ink-500:#5A6B67;
  --line:#E3DFD6;
  --paper:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0D1614;
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:20px;
  --shadow-1:0 1px 2px rgba(16,26,24,.04), 0 1px 3px rgba(16,26,24,.06);
  --shadow-2:0 8px 24px -12px rgba(16,26,24,.18);
  --font-title:"PingFang SC","Microsoft YaHei","Source Han Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink-700);
  font-family:var(--font-body);font-size:16px;line-height:1.85;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:56px 0}

/* ================= 导航 ================= */
.site-header{
  position:sticky;top:0;z-index:110;
  background:rgba(247,245,240,.92);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0}
.brand-mark{width:38px;height:38px;flex:0 0 auto}
.brand-text{font-family:var(--font-title);font-size:17px;font-weight:600;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:8px;font-size:15px;color:var(--ink-700);transition:color .18s ease-out,background-color .18s ease-out}
.nav-link:hover{color:var(--primary-700);background:var(--primary-100)}
.nav-link.active{color:var(--primary-600);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;background:var(--primary-600)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.btn:focus-visible{outline:2px solid rgba(15,99,87,.4);outline-offset:2px}
.btn-primary{background-color:var(--primary-600);background-image:linear-gradient(135deg,#0F6357,#148072);color:#fff}
.btn-primary:hover{background-image:none;background-color:var(--primary-700);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background-color:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-secondary:hover{border-color:var(--primary-600);color:var(--primary-600);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0)}
.btn-block{width:100%}
.btn-onDark{background-color:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4);color:#fff}
.btn-onDark:hover{background-color:#fff;color:var(--primary-700);border-color:#fff;transform:translateY(-1px)}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary-600);font-size:15px;font-weight:600;border-bottom:1px solid rgba(15,99,87,.35);padding-bottom:2px;transition:color .18s ease-out,border-color .18s ease-out}
.link-more:hover{color:var(--primary-700);border-color:var(--primary-700)}
.nav-toggle{display:none;position:relative;width:44px;height:44px;border:0;background:transparent;cursor:pointer;margin-left:6px;border-radius:10px}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:11px;width:22px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s ease-out,background-color .2s ease-out}
.nav-toggle span{top:21px}
.nav-toggle span::before{content:"";top:-7px;left:0}
.nav-toggle span::after{content:"";top:7px;left:0}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-7px) rotate(-45deg)}
.nav-overlay{position:fixed;inset:0;background:rgba(13,22,20,.45);opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out;z-index:105}
body.nav-open .nav-overlay{opacity:1;visibility:visible}
body.nav-open{overflow:hidden}

/* ================= 横幅 ================= */
.banner-wrap{padding-top:28px}
.cat-banner{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  min-height:200px;display:flex;align-items:flex-end;
  background:var(--dark);
}
.cat-banner > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cat-banner::after{content:"";position:absolute;inset:0;background:rgba(15,99,87,.12)}
.cat-banner .shade{position:absolute;inset:0;background:rgba(13,22,20,.62)}
.cat-banner-inner{position:relative;z-index:2;padding:34px 40px 38px;color:#fff;width:100%}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;letter-spacing:.02em;color:rgba(255,255,255,.72);margin-bottom:14px}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color .18s ease-out}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.45)}
.breadcrumb .current{color:rgba(255,255,255,.95)}
.cat-banner h1{
  font-family:var(--font-title);font-weight:600;letter-spacing:-.01em;
  font-size:clamp(26px,3.4vw,38px);line-height:1.32;max-width:820px;
}
.cat-banner .banner-sub{margin-top:14px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:720px}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hero-tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--primary-100);color:var(--primary-700);font-size:13px;letter-spacing:.02em}

/* ================= 通用板块标题 ================= */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.sec-title{position:relative;padding-left:16px;font-family:var(--font-title);font-weight:600;color:var(--ink-900);font-size:clamp(22px,2.4vw,30px);line-height:1.35}
.sec-title::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--primary-600)}
.sec-sub{margin-top:10px;padding-left:16px;font-size:15px;color:var(--ink-500);max-width:640px}
.sec-note{font-size:13px;color:var(--ink-500);letter-spacing:.02em}

/* ================= 筛选条 ================= */
.filter-bar{display:flex;gap:10px;overflow-x:auto;padding:4px 0 16px;margin-bottom:8px;-ms-overflow-style:none;scrollbar-width:none}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{
  flex:0 0 auto;height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-700);font-size:14px;
  cursor:pointer;transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.filter-chip:hover{border-color:var(--primary-600);color:var(--primary-700)}
.filter-chip:focus-visible{outline:2px solid rgba(15,99,87,.4);outline-offset:2px}
.filter-chip.is-active{background-color:var(--primary-600);border-color:var(--primary-600);color:#fff;font-weight:600}

/* ================= 卡片网格 ================= */
.grid-asym{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;align-items:start}
.stack{display:flex;flex-direction:column;gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:24px;box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D8D2C6}
.card-media{margin:-4px 0 18px}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px}
.card h3{font-family:var(--font-title);font-size:18px;font-weight:600;line-height:1.45;color:var(--ink-900);margin-bottom:10px}
.card .summary{font-size:14.5px;line-height:1.8;color:var(--ink-500)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--primary-100);color:var(--primary-600);font-size:13px;letter-spacing:.02em}
.badge-accent{background:var(--accent-100);color:#B85A24}
.card-top{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px}
.points{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.points li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.75;color:var(--ink-700)}
.points li::before{content:"";position:absolute;left:0;top:.6em;width:8px;height:8px;border-radius:3px;background:var(--primary-100);border:1.5px solid var(--primary-600)}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:600;color:var(--primary-600);transition:color .18s ease-out,gap .18s ease-out}
.card-link:hover{color:var(--primary-700);gap:10px}
.card-compact{padding:20px 22px}
.card-compact h3{font-size:17px}
.card-compact .summary{font-size:14px;line-height:1.75}

/* ================= 环境速查条 ================= */
.spec-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-1);overflow:hidden;
}
.spec-cell{padding:26px 24px;border-left:1px solid var(--line)}
.spec-cell:first-child{border-left:0}
.spec-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);letter-spacing:.02em;margin-bottom:10px}
.spec-value{font-family:var(--font-title);font-size:19px;font-weight:600;color:var(--primary-700);line-height:1.5}
.spec-desc{margin-top:8px;font-size:13.5px;color:var(--ink-500);line-height:1.75}

/* ================= 流程 ================= */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:22px;border-top:1px solid var(--line)}
.step-no{font-size:12px;letter-spacing:.14em;color:var(--primary-600);font-weight:600}
.step h3{margin-top:10px;font-family:var(--font-title);font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.45}
.step p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-500)}

/* ================= 反馈摘录 ================= */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote{background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent-500);border-radius:12px;padding:22px;box-shadow:var(--shadow-1)}
.quote p{font-size:14.5px;line-height:1.85;color:var(--ink-700)}
.quote .meta{margin-top:14px;font-size:13px;color:var(--ink-500);letter-spacing:.02em}

/* ================= FAQ ================= */
.faq-list{display:flex;flex-direction:column;gap:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item:last-child{border-bottom:0}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary-600);opacity:0;transition:opacity .2s ease-out}
.faq-item.open::before{opacity:1}
.faq-item.open{background:rgba(226,240,236,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-family:var(--font-title);font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;
}
.faq-q:focus-visible{outline:2px solid rgba(15,99,87,.4);outline-offset:-2px}
.faq-icon{flex:0 0 auto;width:24px;height:24px;color:var(--primary-600);transition:transform .22s ease-out}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a-inner{padding:0 24px 24px;font-size:15px;line-height:1.9;color:var(--ink-700);max-width:820px}

/* ================= CTA 表单 ================= */
.cta-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:40px;align-items:start}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.cta-points li{position:relative;padding-left:26px;font-size:15px;line-height:1.8;color:var(--ink-700)}
.cta-points li svg{position:absolute;left:0;top:.35em;width:18px;height:18px;color:var(--primary-600)}
.contact-line{margin-top:26px;padding:18px 20px;background:var(--primary-100);border-radius:12px;font-size:14.5px;line-height:1.85;color:var(--primary-700)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;box-shadow:var(--shadow-1)}
.form-card h3{font-family:var(--font-title);font-size:20px;font-weight:600;color:var(--ink-900);margin-bottom:6px}
.form-card .form-tip{font-size:13.5px;color:var(--ink-500);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-700);letter-spacing:.02em;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:48px;border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:0 14px;font-size:15px;color:var(--ink-900);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;min-height:124px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary-600);box-shadow:0 0 0 3px rgba(15,99,87,.16)}
.field input::placeholder,.field textarea::placeholder{color:#9AA8A3}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-500);line-height:1.7}
.form-feedback{margin-top:14px;font-size:13.5px;color:var(--primary-700);display:none}
.form-feedback.show{display:block}

/* ================= 页脚 ================= */
.site-footer{background:var(--dark);color:#A8B5B1;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand span{font-family:var(--font-title);font-size:17px;font-weight:600;color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:#A8B5B1;max-width:340px}
.footer-contact{margin-top:16px;font-size:13.5px;line-height:1.9;color:#8E9C98}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#A8B5B1;transition:color .18s ease-out}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8E9C98}

/* ================= 响应式 ================= */
@media (max-width:1279px){
  .grid-asym{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .grid-asym{grid-template-columns:minmax(0,1fr)}
  .spec-strip{grid-template-columns:1fr 1fr}
  .spec-cell:nth-child(odd){border-left:0}
  .spec-cell{border-top:1px solid var(--line)}
  .spec-cell:nth-child(-n+2){border-top:0}
  .steps{grid-template-columns:1fr 1fr}
  .quotes{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}

  .nav-links{
    position:fixed;top:0;right:0;left:auto;width:84vw;max-width:380px;height:100vh;
    margin:0;padding:86px 8px 130px;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-radius:20px 0 0 20px;overflow-y:auto;
    box-shadow:-20px 0 44px -24px rgba(16,26,24,.34);
    transform:translateX(104%);transition:transform .28s ease-out;z-index:120;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{height:52px;padding:0 20px;border-radius:0;border-bottom:1px solid var(--line);font-size:16px}
  .nav-link:hover{background:var(--paper)}
  .nav-link.active::after{display:none}
  .nav-link.active{background:var(--primary-100)}
  .nav-cta{display:none}
  .nav-links.open ~ .nav-cta{
    display:inline-flex;position:fixed;bottom:28px;right:16px;
    width:calc(min(84vw,380px) - 32px);z-index:130;
  }
  .nav-toggle{display:inline-block;z-index:130}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .nav-wrap{height:60px}
  .brand-text{font-size:15px;white-space:normal;line-height:1.25;max-width:150px}
  .brand-mark{width:34px;height:34px}
  .section{padding:48px 0}
  .cat-banner{border-radius:16px;min-height:180px}
  .cat-banner-inner{padding:24px 20px 28px}
  .cat-banner .banner-sub{font-size:15px}
  .banner-actions{gap:12px}
  .banner-actions .btn{flex:1 1 auto}
  .spec-strip{grid-template-columns:1fr}
  .spec-cell{border-left:0;border-top:1px solid var(--line)}
  .spec-cell:first-child{border-top:0}
  .steps{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:24px 20px}
  .card{padding:20px}
  .faq-q{padding:18px 18px;font-size:16px}
  .faq-a-inner{padding:0 18px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .section-head{margin-bottom:24px}
}