/* roulang page: index */
:root{
  --ink:#1E4D4A;
  --ink-deep:#143634;
  --accent:#C65A3A;
  --accent-hover:#A9472C;
  --grass:#6F8F4E;
  --paper:#F7F4EC;
  --mist:#EEF1EA;
  --text:#17201E;
  --muted:#5E6B66;
  --line:#DDD6C8;
  --tag-light:#EDF1E8;
  --tag-dark:#1F2A27;
  --success:#3F7D5A;
  --warn:#B8862F;
  --err:#A8402F;
  --radius-card:14px;
  --radius-btn:8px;
  --shadow-sm:0 8px 24px rgba(23,32,30,.06);
  --shadow-lg:0 14px 30px rgba(23,32,30,.10);
  --container:1200px;
}
*,*::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","Microsoft YaHei",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
button{font:inherit;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4,p,figure{margin:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-family:"DIN Alternate","Barlow Condensed","Helvetica Neue",Arial,sans-serif;}
#services,#news,#faq,#contact{scroll-margin-top:92px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .16s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 20px rgba(198,90,58,.22);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible{outline:3px solid rgba(198,90,58,.38);outline-offset:2px;}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.mobile-only{display:none;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(23,32,30,.09);}
.header-inner{display:flex;align-items:center;gap:20px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:8px;background:var(--ink);color:#fff;
  display:grid;place-items:center;flex:0 0 34px;
}
.brand-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:0;line-height:1.2;}
.brand:hover .brand-text{color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;padding:9px 13px;border-radius:6px;
  font-size:15px;color:var(--text);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--ink);background:var(--mist);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  background:var(--ink);border-radius:2px;
}
.nav-link:focus-visible{outline:3px solid rgba(30,77,74,.28);outline-offset:2px;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:10px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 84px;background:linear-gradient(180deg,#FBF9F3 0%,var(--paper) 100%);}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg,rgba(30,77,74,.045) 0 1px,transparent 1px 104px),
    repeating-linear-gradient(0deg,rgba(30,77,74,.045) 0 1px,transparent 1px 104px);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25));
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25));
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;}
.tag{
  display:inline-block;padding:4px 10px;border-radius:4px;
  background:var(--tag-light);color:var(--ink);
  font-size:12px;line-height:1.6;letter-spacing:.04em;white-space:nowrap;
}
.tag-dark{background:rgba(255,255,255,.14);color:#EAF2EE;}
.hero h1{
  font-size:46px;line-height:1.24;font-weight:800;color:var(--text);
  margin:0 0 20px;max-width:14em;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;list-style:none;}
.hero-trust li{position:relative;padding-left:16px;font-size:14px;color:var(--muted);}
.hero-trust li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;
  background:var(--grass);border-radius:2px;
}
.hero-visual{display:grid;gap:16px;align-content:start;}
.hero-figure{margin:0;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-lg);background:#DCD8CC;}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero-cards{display:grid;grid-template-columns:1.3fr 1fr;gap:14px;}
.hero-metric-card{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;box-shadow:var(--shadow-sm);
  display:grid;gap:4px;
}
.metric-label{font-size:13px;color:var(--muted);letter-spacing:.02em;}
.metric-value{
  font-size:34px;line-height:1.1;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;
  font-family:"DIN Alternate","Barlow Condensed","Helvetica Neue",Arial,sans-serif;
}
.metric-note{font-size:12px;line-height:1.6;color:var(--muted);}
.hero-status-card{
  display:flex;align-items:flex-start;gap:9px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:15px 16px;font-size:13px;line-height:1.7;color:var(--muted);
  box-shadow:var(--shadow-sm);
}
.dot{width:9px;height:9px;border-radius:50%;background:var(--grass);flex:0 0 9px;margin-top:7px;}

/* ---------- metrics ---------- */
.metrics{position:relative;overflow:hidden;background:var(--tag-dark);color:#E9EDE8;padding:88px 0;}
.metrics::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(90deg,rgba(233,237,232,.055) 1px,transparent 1px),
    linear-gradient(0deg,rgba(233,237,232,.055) 1px,transparent 1px);
  background-size:92px 92px;
}
.metrics .container{position:relative;}
.section-head{max-width:740px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--ink);
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--ink);}
.section-head h2{font-size:32px;line-height:1.32;font-weight:700;margin:14px 0 12px;color:var(--text);}
.section-lead{font-size:15.5px;line-height:1.8;color:var(--muted);max-width:640px;}
.section-head.light .eyebrow{color:#8FBDB4;}
.section-head.light .eyebrow::before{background:var(--accent);}
.section-head.light h2{color:#F2F5F0;}
.section-head.light .section-lead{color:#A8B5AF;}
.metrics-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:stretch;}
.metric-main{
  background:rgba(255,255,255,.05);border:1px solid rgba(233,237,232,.16);
  border-radius:var(--radius-card);padding:32px;
  display:flex;flex-direction:column;justify-content:space-between;gap:16px;
}
.metric-main .metric-label{color:#A8B5AF;}
.metric-main .metric-value{
  color:#F4F7F3;font-size:52px;line-height:1.05;letter-spacing:.01em;
}
.metric-main .metric-note{color:#93A29C;font-size:12.5px;}
.metric-side{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.metric-card{
  background:rgba(255,255,255,.04);border:1px solid rgba(233,237,232,.14);
  border-radius:12px;padding:22px 20px;display:flex;flex-direction:column;gap:8px;
  transition:background .2s ease,border-color .2s ease;
}
.metric-card:hover{background:rgba(255,255,255,.07);border-color:rgba(233,237,232,.28);}
.metric-card .metric-label{color:#A8B5AF;}
.metric-card .metric-value{color:#F4F7F3;font-size:38px;}
.metric-card .metric-note{color:#8B9A94;font-size:12px;line-height:1.65;}

/* ---------- services ---------- */
.services{padding:88px 0;}
.service-rows{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.service-card{
  display:flex;gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.service-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFC7B6;}
.sv-wide{grid-column:span 7;}
.sv-narrow{grid-column:span 5;}
.sv-full{grid-column:span 12;}
.sv-body{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.sv-top{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.sv-num{
  font-size:13px;font-weight:700;color:var(--ink);letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
  border:1px solid var(--line);border-radius:4px;padding:2px 8px;background:var(--tag-light);
}
.sv-body h3{font-size:21px;line-height:1.4;font-weight:700;margin-bottom:12px;color:var(--text);}
.sv-list{list-style:none;display:grid;gap:8px;margin-bottom:18px;}
.sv-list li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.75;color:var(--muted);}
.sv-list li::before{
  content:"";position:absolute;left:0;top:.68em;width:7px;height:7px;
  border-radius:2px;background:var(--grass);
}
.sv-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid rgba(30,77,74,.28);padding-bottom:2px;width:fit-content;
  transition:color .2s ease,border-color .2s ease,gap .2s ease;
}
.sv-link:hover{color:var(--accent);border-color:var(--accent);gap:10px;}
.sv-figure{margin:0;flex:0 0 38%;border-radius:10px;overflow:hidden;background:#E4E1D8;}
.sv-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .35s ease;}
.service-card:hover .sv-figure img{transform:scale(1.03);}
.sv-dark{background:var(--ink);border-color:var(--ink);color:#EAF2EE;}
.sv-dark:hover{border-color:var(--ink-deep);}
.sv-dark h3{color:#fff;}
.sv-dark .sv-num{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#EAF2EE;}
.sv-dark .sv-list li{color:#BCD0CA;}
.sv-dark .sv-list li::before{background:var(--accent);}
.sv-dark .sv-link{color:#fff;border-color:rgba(255,255,255,.35);}
.sv-dark .sv-link:hover{color:#F0C6B6;border-color:#F0C6B6;}
.sv-full .sv-figure{flex:0 0 32%;}
.sv-full .sv-figure img{aspect-ratio:16/10;}

/* ---------- compare ---------- */
.compare{background:var(--mist);padding:88px 0;}
.compare-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:6px 30px;box-shadow:var(--shadow-sm);
}
.compare-row{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line);}
.compare-row:last-child{border-bottom:none;}
.compare-cell{display:flex;align-items:flex-start;gap:10px;padding:22px 0;font-size:15.5px;line-height:1.75;}
.compare-before{color:var(--muted);padding-right:30px;border-right:1px solid var(--line);}
.compare-after{color:var(--ink);font-weight:600;padding-left:30px;}
.mark{
  flex:0 0 20px;width:20px;height:20px;border-radius:50%;
  display:grid;place-items:center;margin-top:4px;
  font-size:11px;font-weight:700;line-height:1;
}
.mark-x{background:#F3E6E2;color:var(--err);}
.mark-v{background:#E7EFE4;color:var(--success);}
.compare-note{margin-top:20px;font-size:13px;color:var(--muted);}
.compare-note a{color:var(--ink);border-bottom:1px solid rgba(30,77,74,.3);}
.compare-note a:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- news ---------- */
.news{padding:88px 0;}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.news-head .section-head{margin-bottom:0;}
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:26px;align-items:start;}
.feature-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFC7B6;}
.feature-media{overflow:hidden;background:#E4E1D8;}
.feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.feature-card:hover .feature-media img{transform:scale(1.03);}
.feature-body{padding:24px 26px 26px;}
.feature-body h3{font-size:22px;line-height:1.45;font-weight:700;margin:12px 0 10px;color:var(--text);}
.feature-body p{font-size:14.5px;line-height:1.8;color:var(--muted);margin-bottom:16px;}
.meta{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--muted);flex-wrap:wrap;}
.news-list{list-style:none;display:grid;gap:14px;}
.news-item{
  display:grid;grid-template-columns:80px 1fr;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:#CFC7B6;}
.news-thumb{width:80px;height:80px;border-radius:8px;overflow:hidden;background:#E4E1D8;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-item h4{font-size:15px;line-height:1.55;font-weight:600;margin-bottom:6px;color:var(--text);}
.news-item h4 a{color:inherit;}
.news-item:hover h4 a{color:var(--ink);}
.news-item .meta{font-size:12px;gap:10px;}
.empty-state{
  grid-column:1 / -1;
  display:flex;align-items:center;gap:12px;
  border:1px dashed var(--line);border-radius:12px;background:#FCFAF5;
  padding:34px 26px;font-size:14.5px;color:var(--muted);
}
.empty-state::before{
  content:"";width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--line);flex:0 0 26px;
}

/* ---------- faq ---------- */
.faq{background:var(--mist);padding:88px 0;}
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start;}
.faq-intro h2{font-size:30px;line-height:1.34;margin:14px 0 14px;font-weight:700;}
.faq-intro p{font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:20px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid rgba(30,77,74,.32);padding-bottom:2px;
}
.link-more:hover{color:var(--accent);border-color:var(--accent);}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;text-align:left;
  font-size:16.5px;font-weight:600;line-height:1.6;color:var(--text);cursor:pointer;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.faq-q:hover{background:#FAF8F2;}
.faq-item.is-open .faq-q{color:var(--ink);background:#FAF8F2;box-shadow:inset 3px 0 0 var(--accent);}
.faq-q:focus-visible{outline:3px solid rgba(30,77,74,.26);outline-offset:-3px;}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;transition:transform .24s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:1px;}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .26s ease;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-a a{color:var(--ink);border-bottom:1px solid rgba(30,77,74,.3);}

/* ---------- contact ---------- */
.contact{position:relative;overflow:hidden;background:var(--ink-deep);padding:88px 0;color:#E9EDE8;}
.contact::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(233,237,232,.05) 0 1px,transparent 1px 118px);
}
.contact .container{position:relative;}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.contact-info h2{font-size:32px;line-height:1.34;font-weight:700;color:#F4F7F3;margin:14px 0 16px;}
.contact-info p{font-size:15px;line-height:1.85;color:#AFBEB8;margin-bottom:26px;max-width:420px;}
.contact-points{list-style:none;display:grid;gap:14px;}
.contact-points li{
  display:flex;gap:12px;font-size:14px;color:#C4D1CB;
  padding-bottom:14px;border-bottom:1px solid rgba(233,237,232,.13);
}
.contact-points strong{color:#fff;font-weight:600;flex:0 0 76px;}
.form-card{background:#fff;border-radius:var(--radius-card);padding:30px;box-shadow:var(--shadow-lg);color:var(--text);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;}
.field{margin-bottom:18px;min-width:0;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#FDFCF8;color:var(--text);font-size:15px;line-height:1.6;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{resize:vertical;min-height:104px;}
.field input::placeholder,.field textarea::placeholder{color:#9AA49F;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);background:#fff;
  box-shadow:0 0 0 3px rgba(30,77,74,.13);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err);background:#FDF6F5;}
.field-error{display:none;margin-top:6px;font-size:12.5px;line-height:1.6;color:var(--err);}
.field.has-error .field-error{display:block;}
.check-field{margin-bottom:20px;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:var(--muted);font-weight:400;}
.check-row input[type="checkbox"]{
  width:16px;height:16px;flex:0 0 16px;margin:4px 0 0;accent-color:var(--ink);cursor:pointer;
}
.form-success{
  display:flex;flex-direction:column;align-items:flex-start;gap:12px;
  padding:8px 4px;
}
.success-icon{
  width:46px;height:46px;border-radius:50%;background:#E7EFE4;color:var(--success);
  display:grid;place-items:center;font-size:22px;font-weight:700;
}
.form-success h3{font-size:20px;font-weight:700;color:var(--text);}
.form-success p{font-size:14.5px;line-height:1.85;color:var(--muted);}

/* ---------- footer ---------- */
.site-footer{background:#17201E;color:#E9EDE8;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(233,237,232,.13);
}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{background:var(--ink);}
.footer-desc{font-size:14px;line-height:1.85;color:#A8B5AF;margin:16px 0 18px;max-width:300px;}
.footer-contact{font-size:13.5px;color:#8E9C96;line-height:1.9;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-links{list-style:none;display:grid;gap:10px;}
.footer-links a{font-size:14px;color:#A8B5AF;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0;font-size:12.5px;color:#7F8C87;
}
.footer-bottom a{color:#8E9C96;}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{display:none;}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .hero h1{font-size:42px;}
  .container{padding:0 22px;}
}
@media (max-width:991px){
  .site-header .header-inner{height:64px;}
  .main-nav{display:none;}
  .header-actions{margin-left:auto;}
  .header-actions .btn-primary{display:none;}
  .mobile-only{display:inline-flex;}
  body{padding-bottom:calc(62px + env(safe-area-inset-bottom));}
  .mobile-tabbar{
    display:grid;grid-template-columns:repeat(5,1fr);
    position:fixed;left:0;right:0;bottom:0;z-index:120;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -6px 18px rgba(23,32,30,.08);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{
    position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    height:62px;font-size:11px;line-height:1.2;color:#6B7772;
    transition:color .2s ease;
  }
  .tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
  .tab-item.is-active{color:var(--ink);font-weight:600;}
  .tab-item.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:2px;background:var(--ink);border-radius:0 0 2px 2px;
  }
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:36px;max-width:none;}
  .hero-sub{max-width:none;}
  .metrics,.services,.compare,.news,.faq,.contact{padding:60px 0;}
  .metrics-grid{grid-template-columns:1fr;gap:16px;}
  .metric-side{grid-template-columns:repeat(3,1fr);}
  .service-rows{grid-template-columns:1fr;}
  .sv-wide,.sv-narrow,.sv-full{grid-column:span 1;}
  .news-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .contact-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head h2{font-size:28px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .hero h1{font-size:32px;line-height:1.28;}
  .hero h1 br{display:none;}
  .hero-cards{grid-template-columns:1fr;}
  .hero-trust{gap:14px 20px;}
  .metric-side{grid-template-columns:1fr;}
  .metric-main .metric-value{font-size:44px;}
  .service-card{flex-direction:column-reverse;gap:18px;padding:22px;}
  .sv-figure{flex:1 1 auto;width:100%;}
  .sv-figure img,.sv-full .sv-figure img{aspect-ratio:16/9;}
  .sv-body h3{font-size:19px;}
  .compare-panel{padding:4px 20px;}
  .compare-row{grid-template-columns:1fr;}
  .compare-before{padding-right:0;border-right:none;border-bottom:1px dashed var(--line);}
  .compare-after{padding-left:0;padding-top:16px;}
  .news-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .contact-points strong{flex:0 0 68px;}
  .faq-q{font-size:15.5px;padding:18px 18px;}
  .faq-a p{padding:0 18px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;}
}
@media (max-width:480px){
  .hero{padding:36px 0 44px;}
  .hero h1{font-size:30px;}
  .hero-actions .btn{width:100%;}
  .metrics,.services,.compare,.news,.faq,.contact{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .metric-main{padding:24px;}
  .metric-main .metric-value{font-size:38px;}
  .feature-body{padding:20px;}
  .feature-body h3{font-size:19px;}
  .brand-text{font-size:16px;}
  .brand-mark{width:30px;height:30px;flex:0 0 30px;}
  .news-item{grid-template-columns:64px 1fr;}
  .news-thumb{width:64px;height:64px;}
  .contact-info h2{font-size:25px;}
}

/* roulang page: article */
:root{
  --ink:#17201E;
  --ink-soft:#5E6B66;
  --paper:#F7F4EC;
  --paper-alt:#EEF1EA;
  --paper-warm:#FBF8F0;
  --teal:#1E4D4A;
  --teal-deep:#143634;
  --clay:#C65A3A;
  --clay-deep:#A9472C;
  --grass:#6F8F4E;
  --line:#DDD6C8;
  --tag-bg:#EDF1E8;
  --white:#FFFFFF;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-tag:4px;
  --shadow-sm:0 8px 24px rgba(23,32,30,.06);
  --shadow-md:0 14px 30px rgba(23,32,30,.10);
  --container:1200px;
  --ease:200ms ease;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.tab-open{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:var(--teal);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--clay)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.32;letter-spacing:0}
p{margin:0}
button{font-family:inherit;font-size:inherit;cursor:pointer}
:focus-visible{outline:3px solid rgba(198,90,58,.45);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--clay);border-color:var(--clay);color:#fff;box-shadow:0 6px 16px rgba(198,90,58,.22)}
.btn-primary:hover{background:var(--clay-deep);border-color:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(198,90,58,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--teal);color:var(--teal)}
.btn-ghost:hover{background:var(--teal);border-color:var(--teal);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn:disabled,.btn.is-disabled{opacity:.5;pointer-events:none}

.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--teal);border-bottom:1px solid rgba(30,77,74,.35);padding-bottom:2px}
.text-link:hover{color:var(--clay);border-bottom-color:rgba(198,90,58,.55)}
.text-link svg{width:14px;height:14px}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,244,236,.97);border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(23,32,30,.08)}
.header-inner{display:flex;align-items:center;gap:22px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:7px;background:var(--teal);color:#fff;display:inline-flex;align-items:center;justify-content:center;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.brand:hover .brand-text{color:var(--teal)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;color:var(--ink);border-radius:6px}
.nav-link:hover{color:var(--teal);background:var(--tag-bg)}
.nav-link.is-active{color:var(--teal);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--teal);border-radius:2px}
.header-cta{flex:0 0 auto;margin-left:10px}
.mobile-cta{display:none;margin-left:auto;height:38px;padding:0 16px;border-radius:var(--radius-btn);background:var(--clay);color:#fff;font-size:14px;font-weight:600;align-items:center;justify-content:center}
.mobile-cta:hover{background:var(--clay-deep);color:#fff}

/* ---------- 面包屑 ---------- */
.article-main{padding-top:26px}
.breadcrumb{display:flex;flex-wrap:nowrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);line-height:1.6;overflow:hidden}
.breadcrumb a{color:var(--ink-soft)}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb .sep{color:#B9B2A3}
.breadcrumb .crumb-cat{color:var(--ink-soft);white-space:nowrap}
.breadcrumb .crumb-current{color:var(--teal);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46vw}

/* ---------- 栏目标签条 ---------- */
.channel-bar{display:flex;gap:8px;margin-top:18px;padding-bottom:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-bar::-webkit-scrollbar{display:none}
.channel-chip{flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--radius-tag);background:var(--tag-bg);color:var(--teal);font-size:13px;font-weight:600;border:1px solid transparent}
.channel-chip:hover{background:#E2E9DC;color:var(--teal-deep)}
.channel-chip.is-current{background:var(--teal);color:#fff}
.channel-chip.is-current:hover{background:var(--teal-deep);color:#fff}

/* ---------- 文章头部 ---------- */
.article-head{padding:26px 0 26px;border-bottom:1px solid var(--line)}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:var(--radius-tag);background:var(--tag-bg);color:var(--teal);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-dot{width:6px;height:6px;background:var(--clay);border-radius:1px;display:inline-block}
.article-title{font-size:42px;line-height:1.24;margin-top:16px;max-width:900px}
.article-lead{margin-top:16px;max-width:760px;font-size:16px;line-height:1.85;color:var(--ink-soft)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:20px;font-size:13px;color:var(--ink-soft)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta svg{width:15px;height:15px;color:var(--teal);flex:0 0 auto}
.article-meta .meta-sep{width:1px;height:12px;background:var(--line)}

/* ---------- 双栏布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:56px;
  align-items:start;
  padding:40px 0 8px;
}

/* ---------- 正文排版 ---------- */
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink)}
.article-body > * + *{margin-top:1.1em}
.article-body p{margin:0}
.article-body h2{font-size:26px;line-height:1.45;margin-top:2.2em;margin-bottom:.8em;position:relative;padding-left:15px}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;background:var(--clay);border-radius:2px}
.article-body h3{font-size:21px;line-height:1.5;margin-top:1.9em;margin-bottom:.6em;color:var(--teal-deep)}
.article-body h4{font-size:17px;margin-top:1.6em;margin-bottom:.5em}
.article-body ul,.article-body ol{padding-left:0;margin:1.1em 0}
.article-body ul li{position:relative;padding-left:22px;margin:.5em 0}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;background:var(--teal);border-radius:1px}
.article-body ol{list-style:decimal;padding-left:22px}
.article-body ol li{margin:.5em 0;padding-left:4px}
.article-body ol li::marker{color:var(--clay);font-weight:700}
.article-body blockquote{margin:1.5em 0;padding:18px 22px;background:var(--paper-warm);border-left:3px solid var(--clay);border-radius:0 10px 10px 0;color:var(--ink-soft);font-size:16px}
.article-body blockquote p{margin:0}
.article-body img{border-radius:10px;margin:1.5em 0;width:100%;height:auto}
.article-body figure{margin:1.5em 0}
.article-body figcaption{font-size:13px;color:var(--ink-soft);text-align:center;margin-top:10px;line-height:1.7}
.article-body a{color:var(--teal);text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(30,77,74,.4)}
.article-body a:hover{color:var(--clay);text-decoration-color:rgba(198,90,58,.6)}
.article-body strong{font-weight:700;color:var(--teal-deep)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.7;margin:1.6em 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--paper-alt);color:var(--teal-deep);font-weight:600}
.article-body code{background:var(--paper-alt);padding:2px 6px;border-radius:4px;font-size:15px}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  background:var(--white);padding:44px 28px;text-align:center;
}
.empty-state .empty-mark{width:44px;height:44px;border-radius:10px;background:var(--tag-bg);color:var(--teal);display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px}
.empty-state h2{font-size:20px;margin-bottom:8px}
.empty-state p{font-size:15px;color:var(--ink-soft)}
.empty-state .empty-actions{margin-top:18px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-sm)}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink)}
.side-title .side-mark{width:8px;height:8px;background:var(--clay);border-radius:1px;display:inline-block}
.side-title svg{width:16px;height:16px;color:var(--teal)}
.toc-list{margin-top:14px;display:flex;flex-direction:column;gap:2px;max-height:44vh;overflow-y:auto}
.toc-list::-webkit-scrollbar{width:4px}
.toc-list::-webkit-scrollbar-thumb{background:var(--line);border-radius:2px}
.toc-link{display:block;padding:7px 10px 7px 12px;font-size:14px;line-height:1.6;color:var(--ink-soft);border-left:2px solid transparent;border-radius:0 6px 6px 0;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
.toc-link:hover{color:var(--teal);background:var(--paper-alt)}
.toc-link.is-sub{padding-left:24px;font-size:13px}
.toc-link.is-active{color:var(--teal);border-left-color:var(--teal);background:var(--tag-bg);font-weight:600}

.cta-card{background:var(--teal);border-color:var(--teal-deep);color:#fff;box-shadow:0 14px 30px rgba(20,54,52,.22)}
.cta-card .side-title{color:#fff}
.cta-card .side-title .side-mark{background:var(--clay)}
.cta-card p{margin-top:10px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.82)}
.cta-card .btn{width:100%;margin-top:16px}
.cta-card .btn-primary{background:var(--clay);border-color:var(--clay)}
.cta-card .btn-primary:hover{background:var(--clay-deep);border-color:var(--clay-deep)}
.cta-card .cta-note{margin-top:12px;font-size:12px;color:rgba(255,255,255,.62);line-height:1.7}

.rel-list{margin-top:14px;display:flex;flex-direction:column;gap:2px}
.rel-item{display:flex;align-items:flex-start;gap:10px;padding:10px 8px;border-radius:8px;transition:background-color var(--ease)}
.rel-item:hover{background:var(--paper-alt)}
.rel-item .rel-index{flex:0 0 auto;font-size:12px;font-weight:700;color:var(--clay);line-height:1.7;font-variant-numeric:tabular-nums}
.rel-item .rel-body{min-width:0}
.rel-item .rel-name{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.6}
.rel-item:hover .rel-name{color:var(--teal)}
.rel-item .rel-desc{display:block;font-size:12px;color:var(--ink-soft);line-height:1.6;margin-top:2px}

/* ---------- 相关推荐 ---------- */
.related-section{max-width:100%;padding:56px 0 8px;border-top:1px solid var(--line);margin-top:48px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:24px}
.section-head h2{font-size:28px}
.section-head .section-sub{margin-top:8px;font-size:15px;color:var(--ink-soft)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.related-card{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#CFC7B6}
.related-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--paper-alt)}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.related-card:hover .related-thumb img{transform:scale(1.03)}
.related-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.related-tag{font-size:12px;font-weight:600;color:var(--teal);background:var(--tag-bg);border-radius:var(--radius-tag);padding:2px 8px;align-self:flex-start}
.related-title{font-size:17px;line-height:1.5;color:var(--ink)}
.related-desc{font-size:14px;line-height:1.75;color:var(--ink-soft);flex:1}
.related-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--clay)}
.related-more svg{width:14px;height:14px}

/* ---------- 文末 CTA ---------- */
.end-cta{margin:56px 0 72px;background:var(--teal-deep);border-radius:18px;padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;overflow:hidden}
.end-cta::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 72px);pointer-events:none}
.end-cta-copy{position:relative;z-index:1;max-width:560px}
.end-cta-copy h2{color:#fff;font-size:26px;line-height:1.4}
.end-cta-copy p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.78)}
.end-cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
.end-cta-actions .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.end-cta-actions .btn-ghost:hover{background:#fff;border-color:#fff;color:var(--teal-deep)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#E9EDE8;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{background:var(--teal)}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(233,237,232,.72);max-width:320px}
.footer-contact{margin-top:12px;font-size:13px;line-height:1.9;color:rgba(233,237,232,.6)}
.footer-title{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a,.footer-links span{font-size:14px;color:rgba(233,237,232,.72);line-height:1.7}
.footer-links a:hover{color:var(--clay)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12px;color:rgba(233,237,232,.55)}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tabbar{display:none}
.tab-drawer{position:fixed;inset:0;z-index:90;display:none}
.tab-drawer.is-open{display:block}
.tab-drawer-mask{position:absolute;inset:0;background:rgba(23,32,30,.45);border:0;padding:0;width:100%}
.tab-drawer-panel{position:absolute;left:0;right:0;bottom:calc(62px + env(safe-area-inset-bottom));background:#fff;border-radius:16px 16px 0 0;padding:20px 18px 24px;display:flex;flex-direction:column;gap:10px;box-shadow:0 -14px 30px rgba(23,32,30,.18)}
.tab-drawer-title{font-size:13px;color:var(--ink-soft);font-weight:600;margin-bottom:2px}
.tab-drawer-panel a{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-weight:600;color:var(--ink)}
.tab-drawer-panel a:hover{border-color:var(--teal);color:var(--teal);background:var(--tag-bg)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:40px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .header-cta{display:none}
  .mobile-cta{display:inline-flex}
  .header-inner{height:60px;gap:14px}
  .brand-text{font-size:16px}
  .brand-mark{width:30px;height:30px}
  .article-title{font-size:33px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:30px}
  .article-side{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  .mobile-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;
    height:calc(62px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -6px 18px rgba(23,32,30,.08);
  }
  .tab-item{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    border:0;background:transparent;padding:0;position:relative;
    font-size:11px;line-height:1.2;color:#6B7772;text-decoration:none;
  }
  .tab-item svg{width:22px;height:22px}
  .tab-item:hover{color:var(--teal)}
  .tab-item.is-active{color:var(--teal);font-weight:600}
  .tab-item.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;background:var(--teal);border-radius:0 0 2px 2px}
  .end-cta{padding:30px 26px;margin:44px 0 48px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .article-main{padding-top:18px}
  .article-title{font-size:30px}
  .article-lead{font-size:15px}
  .article-head{padding:20px 0 22px}
  .breadcrumb .crumb-current{max-width:40vw}
  .article-body{font-size:17px;line-height:1.85}
  .article-body h2{font-size:23px;margin-top:1.9em}
  .article-body h3{font-size:19px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;font-size:14px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .section-head h2{font-size:24px}
  .end-cta-copy h2{font-size:22px}
  .end-cta-actions{width:100%}
  .end-cta-actions .btn{flex:1 1 160px}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:480px){
  .article-title{font-size:28px}
  .article-meta{font-size:12px;gap:8px 12px}
  .article-meta .meta-sep{display:none}
  .side-card{padding:18px}
  .end-cta{padding:26px 20px;border-radius:14px}
  .channel-chip{height:30px;padding:0 12px;font-size:12px}
}

/* roulang page: category1 */
:root{
  --pine:#1E4D4A;
  --pine-deep:#143634;
  --terra:#C65A3A;
  --terra-deep:#A9472C;
  --turf:#6F8F4E;
  --paper:#F7F4EC;
  --mist:#EEF1EA;
  --ink:#17201E;
  --ink-soft:#1F2A27;
  --muted:#5E6B66;
  --line:#DDD6C8;
  --tag-bg:#EDF1E8;
  --success:#3F7D5A;
  --warn:#B8862F;
  --error:#A8402F;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-tag:4px;
  --shadow-sm:0 8px 24px rgba(23,32,30,.06);
  --shadow-md:0 14px 30px rgba(23,32,30,.10);
  --ease:200ms ease;
}
*,*::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","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--pine);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--terra)}
button{font-family:inherit}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink);font-family:inherit;font-weight:700;letter-spacing:0;line-height:1.3}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(198,90,58,.38);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#FBF9F3;border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(23,32,30,.08)}
.header-inner{display:flex;align-items:center;gap:20px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:19px;letter-spacing:.01em;flex:0 0 auto}
.brand:hover{color:var(--pine)}
.brand-mark{width:36px;height:36px;border-radius:9px;background:var(--pine);color:#fff;display:grid;place-items:center;box-shadow:0 5px 14px rgba(30,77,74,.24);flex:0 0 auto}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;display:inline-block;padding:9px 13px;font-size:15.5px;color:#3A4643;border-radius:6px;transition:color var(--ease),background var(--ease)}
.nav-link:hover{color:var(--pine);background:var(--mist)}
.nav-link.is-active{color:var(--pine);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;border-radius:2px;background:var(--pine)}
.header-cta{flex:0 0 auto;margin-left:8px}
.mobile-cta{display:none}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--radius-btn);border:1px solid transparent;font-size:15.5px;font-weight:600;cursor:pointer;text-decoration:none;transition:transform var(--ease),background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease)}
.btn-primary{background:var(--terra);color:#fff;border-color:var(--terra);box-shadow:0 6px 16px rgba(198,90,58,.22)}
.btn-primary:hover{background:var(--terra-deep);border-color:var(--terra-deep);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 3px 10px rgba(198,90,58,.2)}
.btn-ghost{background:transparent;color:var(--pine);border-color:var(--pine)}
.btn-ghost:hover{background:var(--pine);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn-block{width:100%}
.btn-light{background:#fff;color:var(--pine);border-color:#fff}
.btn-light:hover{background:var(--mist);color:var(--pine-deep);border-color:var(--mist)}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- labels / tags ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--pine);font-weight:700;text-transform:uppercase}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--pine);border-radius:2px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--radius-tag);background:var(--tag-bg);color:var(--pine);font-size:12.5px;font-weight:600;line-height:1.7}
.tag-turf{background:rgba(111,143,78,.16);color:#4B6633}
.tag-ink{background:var(--ink-soft);color:#EDF1E8}

/* ---------- breadcrumb / channel bar ---------- */
.crumb-wrap{padding:22px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--pine)}
.crumb .sep{color:#B9B2A3}
.crumb .current{color:var(--pine);font-weight:600}
.channel-bar{display:flex;gap:8px;overflow-x:auto;padding:16px 0 4px;scrollbar-width:none}
.channel-bar::-webkit-scrollbar{display:none}
.channel-link{flex:0 0 auto;display:inline-block;padding:6px 14px;border-radius:var(--radius-tag);border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13.5px;transition:all var(--ease)}
.channel-link:hover{color:var(--pine);border-color:var(--pine)}
.channel-link.is-active{background:var(--pine);border-color:var(--pine);color:#fff;font-weight:600}

/* ---------- hero ---------- */
.page-hero{position:relative;padding:40px 0 68px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(30,77,74,.055) 0 1px,transparent 1px 132px);opacity:.9;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.hero-copy h1{font-size:clamp(30px,3.6vw,46px);line-height:1.24;letter-spacing:-.01em;margin:16px 0 18px}
.hero-copy h1 .hl{color:var(--pine)}
.hero-sub{font-size:16.5px;line-height:1.85;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:#3A4643}
.hero-points li{display:flex;align-items:center;gap:7px}
.hero-points svg{color:var(--turf);flex:0 0 auto}
.hero-panel{position:relative}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform 420ms ease}
.hero-media:hover img{transform:scale(1.03)}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,54,52,.06),rgba(20,54,52,.30));pointer-events:none}
.hero-media .media-label{position:absolute;left:16px;top:16px;z-index:2;background:rgba(255,255,255,.94);color:var(--pine);font-size:12.5px;font-weight:700;padding:5px 11px;border-radius:var(--radius-tag);letter-spacing:.04em}
.hero-cards{display:grid;grid-template-columns:1.25fr .75fr;gap:14px;margin-top:14px}
.metric-card,.status-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 18px 16px;box-shadow:var(--shadow-sm)}
.metric-card .m-label{font-size:12.5px;color:var(--muted);letter-spacing:.06em}
.metric-card .m-value{font-family:"DIN Alternate","Barlow Condensed",inherit;font-size:40px;line-height:1.1;font-weight:700;color:var(--pine);letter-spacing:-.02em;margin:6px 0 6px;font-variant-numeric:tabular-nums}
.metric-card .m-note{font-size:12px;color:var(--muted);line-height:1.7}
.status-card{display:flex;flex-direction:column;justify-content:center;gap:6px}
.status-card .s-dot{width:9px;height:9px;border-radius:50%;background:var(--turf);box-shadow:0 0 0 4px rgba(111,143,78,.16)}
.status-card .s-title{font-size:14px;font-weight:700;color:var(--ink)}
.status-card .s-desc{font-size:12px;color:var(--muted);line-height:1.7}

/* ---------- sections ---------- */
.section{padding:76px 0}
.section-mist{background:var(--mist)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.7vw,32px);margin-top:12px}
.section-lead{max-width:640px;font-size:15.5px;color:var(--muted);margin-top:12px}

/* ---------- scope strip ---------- */
.scope-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm)}
.scope-item{padding:22px 20px;border-right:1px solid var(--line);transition:background var(--ease)}
.scope-item:last-child{border-right:0}
.scope-item:hover{background:#FCFAF4}
.scope-item .num{font-family:"DIN Alternate",inherit;font-size:13px;font-weight:700;color:var(--terra);letter-spacing:.08em}
.scope-item .name{display:block;margin-top:6px;font-size:15.5px;font-weight:700;color:var(--ink)}
.scope-item .desc{display:block;margin-top:4px;font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- stack layout ---------- */
.stack{display:grid;grid-template-columns:262px minmax(0,1fr);gap:52px;align-items:start}
.anchor-nav{position:sticky;top:100px}
.anchor-title{font-size:12px;letter-spacing:.14em;color:var(--muted);font-weight:700;margin-bottom:12px}
.anchor-list{border-left:2px solid var(--line);padding-left:0}
.anchor-link{display:block;position:relative;padding:9px 0 9px 16px;font-size:14.5px;color:var(--muted);border-left:2px solid transparent;margin-left:-2px;transition:all var(--ease)}
.anchor-link span{font-family:"DIN Alternate",inherit;font-size:12px;color:#A9A498;margin-right:8px;letter-spacing:.06em}
.anchor-link:hover{color:var(--pine)}
.anchor-link.is-current{color:var(--pine);font-weight:700;border-left-color:var(--terra)}
.anchor-link.is-current span{color:var(--terra)}
.anchor-cta{margin-top:24px;background:var(--pine-deep);color:#E9EDE8;border-radius:12px;padding:20px}
.anchor-cta .ac-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:6px}
.anchor-cta .ac-desc{font-size:12.5px;line-height:1.7;color:rgba(233,237,232,.78);margin-bottom:14px}
.anchor-cta .btn{width:100%;height:42px;font-size:14px}

/* ---------- service groups ---------- */
.svc-group{display:grid;grid-template-columns:1.32fr .68fr;gap:40px;align-items:center;padding:40px 0;border-top:1px solid var(--line);scroll-margin-top:104px}
.svc-group:first-child{border-top:0;padding-top:0}
.svc-group.is-flip{grid-template-columns:.68fr 1.32fr}
.svc-group.is-flip .svc-body{order:2}
.svc-group.is-flip .svc-media{order:1}
.svc-index{display:inline-flex;align-items:center;gap:10px;font-family:"DIN Alternate",inherit;font-size:13px;font-weight:700;color:var(--terra);letter-spacing:.1em;margin-bottom:10px}
.svc-index::after{content:"";width:34px;height:1px;background:var(--line)}
.svc-body h3{font-size:21px;line-height:1.4;margin-bottom:12px}
.svc-body p{font-size:15px;color:var(--muted);margin-bottom:14px}
.point-list{display:grid;gap:9px;margin:0 0 18px}
.point-list li{position:relative;padding-left:18px;font-size:14.5px;line-height:1.78;color:#3A4643}
.point-list li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--pine);border-radius:1px}
.svc-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--pine);border-bottom:1px solid transparent;padding-bottom:2px;transition:all var(--ease)}
.svc-link:hover{color:var(--terra);border-bottom-color:var(--terra);gap:10px}
.svc-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.svc-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 420ms ease}
.svc-media:hover img{transform:scale(1.03)}
.svc-media .svc-badge{position:absolute;left:12px;bottom:12px;background:rgba(255,255,255,.95);color:var(--pine);font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--radius-tag)}

/* ---------- compare ---------- */
.compare-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden}
.compare-head{display:grid;grid-template-columns:1fr 1fr;gap:0;border-bottom:1px solid var(--line);background:#FCFAF4}
.compare-head div{padding:16px 24px;font-size:14px;font-weight:700;letter-spacing:.04em}
.compare-head .h-plain{color:var(--muted)}
.compare-head .h-ours{color:var(--pine);border-left:1px solid var(--line)}
.compare-row{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--line)}
.compare-row:first-of-type{border-top:0}
.compare-cell{padding:18px 24px;font-size:14.5px;line-height:1.78;display:flex;gap:10px;align-items:flex-start}
.compare-cell svg{flex:0 0 auto;margin-top:4px}
.cell-plain{color:var(--muted)}
.cell-ours{color:var(--ink);border-left:1px solid var(--line);background:#FDFCF8;font-weight:500}
.bar{height:8px;border-radius:4px;background:var(--mist);overflow:hidden;margin-top:8px}
.bar span{display:block;height:100%;background:var(--terra);border-radius:4px}
.cell-ours .bar span{background:var(--turf)}

/* ---------- boundary ---------- */
.boundary-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.boundary-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm)}
.boundary-card h3{font-size:18px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.boundary-card ul{display:grid;gap:10px}
.boundary-card li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.78;color:#3A4643}
.boundary-card li::before{content:"";position:absolute;left:0;top:.7em;width:7px;height:7px;border-radius:2px;background:var(--turf)}
.boundary-card.is-no li::before{background:#B9B2A3}

/* ---------- faq ---------- */
.accordion{border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;margin:0;list-style:none;overflow:hidden;box-shadow:var(--shadow-sm)}
.accordion-item{border-top:1px solid var(--line);background:#fff;transition:background var(--ease)}
.accordion-item:first-child{border-top:0}
.accordion-title{display:block;position:relative;padding:20px 58px 20px 24px;font-size:16.5px;font-weight:600;color:var(--ink);background:transparent;border:0;line-height:1.6;transition:background var(--ease),color var(--ease)}
.accordion-title:hover{background:#FCFAF4;color:var(--pine)}
.accordion-title::before{content:"";position:absolute;right:26px;top:50%;width:13px;height:2px;margin-top:-1px;background:var(--pine);border-radius:2px;transition:background var(--ease)}
.accordion-title::after{content:"";position:absolute;right:31.5px;top:50%;width:2px;height:13px;margin-top:-6.5px;background:var(--pine);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.accordion-title[aria-expanded="true"]::after{transform:rotate(90deg);opacity:0}
.accordion-content{padding:0 24px 20px;border:0;background:transparent;font-size:15px;line-height:1.85;color:var(--muted)}
.accordion-item.is-active,.accordion-item:has(.accordion-title[aria-expanded="true"]){background:#FBF8F0;box-shadow:inset 3px 0 0 var(--terra)}

/* ---------- cta band ---------- */
.cta-band{background:var(--pine-deep);color:#E9EDE8;border-radius:16px;padding:42px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 96px);pointer-events:none}
.cta-band h2{color:#fff;font-size:clamp(22px,2.5vw,30px);position:relative}
.cta-band p{color:rgba(233,237,232,.78);font-size:15px;margin-top:10px;max-width:560px;position:relative}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#E9EDE8;margin-top:80px;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.site-footer .brand{color:#fff;font-size:18px}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-mark{background:var(--terra)}
.footer-desc{color:rgba(233,237,232,.72);font-size:14px;line-height:1.8;margin-top:16px;max-width:320px}
.footer-contact{color:rgba(233,237,232,.62);font-size:13px;line-height:1.9;margin-top:14px}
.footer-title{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:16px;font-weight:700}
.footer-links{display:grid;gap:10px}
.footer-links a,.footer-links span{color:rgba(233,237,232,.74);font-size:14px;transition:color var(--ease)}
.footer-links a:hover{color:var(--terra)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(233,237,232,.14);margin-top:44px;padding-top:18px;font-size:12.5px;color:rgba(233,237,232,.56)}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 18px rgba(23,32,30,.08);padding-bottom:env(safe-area-inset-bottom)}
.tab-item{flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:62px;background:transparent;border:0;color:#6B7772;font-size:11px;position:relative;cursor:pointer;text-decoration:none;transition:color var(--ease)}
.tab-item svg{width:22px;height:22px}
.tab-item.is-active{color:var(--pine);font-weight:700}
.tab-item.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;background:var(--pine);border-radius:0 0 2px 2px}
.tab-item:hover{color:var(--pine)}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(23,32,30,.42);z-index:95;opacity:0;transition:opacity var(--ease)}
.drawer-mask.is-open{display:block;opacity:1}
.biz-drawer{position:fixed;left:0;right:0;bottom:0;z-index:96;background:#fff;border-radius:16px 16px 0 0;padding:20px 20px calc(24px + env(safe-area-inset-bottom));transform:translateY(100%);transition:transform 240ms ease;display:none}
.biz-drawer.is-open{display:block;transform:translateY(0)}
.biz-drawer h3{font-size:15px;margin-bottom:14px;color:var(--muted);font-weight:600;letter-spacing:.06em}
.biz-drawer a{display:flex;align-items:center;justify-content:space-between;padding:15px 18px;border:1px solid var(--line);border-radius:10px;font-size:15.5px;color:var(--ink);font-weight:600;margin-bottom:10px}
.biz-drawer a:hover{border-color:var(--pine);color:var(--pine);background:#FCFAF4}
.drawer-close{width:100%;height:44px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:14.5px;cursor:pointer}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .hero-grid{gap:40px}
  .stack{grid-template-columns:228px minmax(0,1fr);gap:40px}
}
@media (max-width:991px){
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  .main-nav{display:none}
  .header-cta{display:none}
  .mobile-cta{display:inline-flex;margin-left:auto;height:38px;padding:0 16px;border-radius:8px;border:1px solid var(--pine);color:var(--pine);font-size:14.5px;font-weight:600;align-items:center}
  .header-inner{height:62px}
  .brand{font-size:16px}
  .brand-mark{width:31px;height:31px;border-radius:8px}
  .mobile-tabbar{display:flex}
  .section{padding:56px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-cards{grid-template-columns:1fr 1fr}
  .scope-strip{grid-template-columns:repeat(2,1fr)}
  .scope-item{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
  .scope-item:nth-child(2n){border-right:0}
  .scope-item:nth-last-child(-n+1){border-bottom:0}
  .stack{grid-template-columns:1fr;gap:28px}
  .anchor-nav{position:static;top:auto}
  .anchor-list{display:flex;gap:8px;overflow-x:auto;border-left:0;padding-bottom:6px;scrollbar-width:none}
  .anchor-list::-webkit-scrollbar{display:none}
  .anchor-link{border:1px solid var(--line);border-radius:var(--radius-tag);padding:7px 12px;white-space:nowrap;margin-left:0;font-size:13.5px;background:#fff}
  .anchor-link.is-current{border-left-color:var(--line);border-color:var(--pine);background:var(--pine);color:#fff}
  .anchor-link.is-current span{color:rgba(255,255,255,.72)}
  .anchor-cta{display:none}
  .svc-group,.svc-group.is-flip{grid-template-columns:1fr;gap:20px;padding:32px 0}
  .svc-group.is-flip .svc-body{order:1}
  .svc-group.is-flip .svc-media{order:2}
  .svc-media img{aspect-ratio:16/9}
  .compare-head,.compare-row{grid-template-columns:1fr}
  .compare-head .h-ours{border-left:0;border-top:1px solid var(--line)}
  .compare-cell{border-left:0}
  .compare-head div{padding:12px 20px}
  .compare-cell{padding:14px 20px}
  .cell-ours{border-top:1px solid var(--line)}
  .boundary-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 26px;border-radius:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:56px;padding:48px 0 20px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero-cards{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-band .cta-actions{width:100%}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  body{font-size:16px}
  .hero-copy h1{font-size:30px}
  .section{padding:48px 0}
  .scope-strip{grid-template-columns:1fr}
  .scope-item{border-right:0}
  .scope-item:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .scope-item:last-child{border-bottom:0}
  .accordion-title{font-size:15.5px;padding:16px 50px 16px 18px}
  .accordion-content{padding:0 18px 18px;font-size:14.5px}
  .anchor-cta{display:none}
  .boundary-card{padding:22px}
}

/* roulang page: category2 */
:root{
  --pine:#1E4D4A;
  --pine-deep:#143634;
  --terracotta:#C65A3A;
  --terracotta-deep:#A9472C;
  --turf:#6F8F4E;
  --paper:#F7F4EC;
  --mist:#EEF1EA;
  --ink:#17201E;
  --ink-2:#5E6B66;
  --line:#DDD6C8;
  --tag-light:#EDF1E8;
  --tag-dark:#1F2A27;
  --success:#3F7D5A;
  --warn:#B8862F;
  --danger:#A8402F;
  --r-card:14px;
  --r-btn:8px;
  --r-tag:4px;
  --shadow:0 8px 24px rgba(23,32,30,.06);
  --shadow-hover:0 14px 30px rgba(23,32,30,.10);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Barlow Condensed","Noto Sans SC","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--pine);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--terracotta);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(198,90,58,.42);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:0;}
h1{font-size:clamp(30px,4vw,50px);line-height:1.2;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;margin-top:2.2em;margin-bottom:.8em;}
h3{font-size:20px;line-height:1.4;margin-top:1.6em;margin-bottom:.6em;}
h4{font-size:17px;line-height:1.5;margin-top:1.4em;margin-bottom:.5em;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.2em;}
li{line-height:1.8;margin-bottom:.35em;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15.5px;
  font-weight:600;
  border:1px solid transparent;
  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(--terracotta);color:#fff;border-color:var(--terracotta);}
.btn-primary:hover{background:var(--terracotta-deep);border-color:var(--terracotta-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(169,71,44,.22);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--pine);border-color:var(--pine);}
.btn-ghost:hover{background:var(--pine);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:transparent;color:#E9EDE8;border-color:rgba(233,237,232,.55);}
.btn-light:hover{background:#E9EDE8;color:var(--pine-deep);border-color:#E9EDE8;}
.btn-sm{height:42px;padding:0 18px;font-size:15px;}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--pine);
  font-weight:600;
  margin:0 0 14px;
  text-transform:none;
}
.eyebrow-square{
  width:8px;height:8px;background:var(--terracotta);display:inline-block;border-radius:2px;flex:0 0 auto;
}
.section-lead{max-width:640px;font-size:15.5px;line-height:1.9;color:var(--ink-2);margin:0 0 34px;}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(23,32,30,.08);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-weight:700;
  flex:0 0 auto;
}
.brand:hover{color:var(--pine);}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--pine);
  color:#F2F5EF;
  border-radius:8px;
  flex:0 0 auto;
}
.brand-text{font-size:19px;letter-spacing:.01em;line-height:1.2;}
.main-nav{display:flex;align-items:center;gap:2px;flex-wrap:nowrap;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink);
  border-radius:6px;
  white-space:nowrap;
}
.nav-link:hover{color:var(--pine);background:var(--mist);}
.nav-link.is-active{color:var(--pine);font-weight:700;}
.nav-link.is-active::after{
  content:"";
  position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--pine);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.cta-short{display:none;}

/* ===== Mobile tabbar ===== */
.mobile-tabbar{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:80;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(23,32,30,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar-inner{display:flex;align-items:stretch;}
.tab-item{
  flex:1 1 0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  height:62px;
  font-size:11px;
  color:#6B7772;
  position:relative;
  transition:color .2s ease;
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;}
.tab-item:hover{color:var(--pine);}
.tab-item.is-active{color:var(--pine);font-weight:600;}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:22%;right:22%;height:2px;background:var(--pine);border-radius:0 0 2px 2px;
}

/* ===== Page strip ===== */
.page-strip{background:var(--paper);border-bottom:1px solid var(--line);padding:18px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-2);margin:0 0 14px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--pine);}
.breadcrumb .sep{color:#B9B1A2;}
.breadcrumb .current{color:var(--pine);font-weight:600;}
.channel-tabs{
  display:flex;gap:8px;overflow-x:auto;padding-bottom:14px;
  scrollbar-width:thin;
}
.channel-tab{
  flex:0 0 auto;
  height:32px;
  display:inline-flex;align-items:center;
  padding:0 14px;
  font-size:13.5px;
  color:var(--ink-2);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-tag);
  transition:all .2s ease;
}
.channel-tab:hover{color:var(--pine);border-color:var(--pine);}
.channel-tab.is-active{background:var(--pine);border-color:var(--pine);color:#fff;font-weight:600;}

/* ===== Hero / data band ===== */
.result-hero{
  position:relative;
  background:var(--pine-deep);
  color:#E9EDE8;
  padding:56px 0 60px;
  overflow:hidden;
}
.result-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(233,237,232,.055) 0 1px,transparent 1px 118px);
  pointer-events:none;
}
.result-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(198,90,58,.7),rgba(233,237,232,.12) 45%,transparent);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:52px;
  align-items:start;
}
.result-hero h1{color:#fff;margin:0 0 18px;}
.result-hero .hero-lead{
  font-size:16px;line-height:1.9;color:rgba(233,237,232,.86);max-width:600px;margin:0 0 26px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px;}
.hero-badge{
  font-size:12.5px;
  padding:5px 11px;
  border-radius:var(--r-tag);
  background:rgba(233,237,232,.10);
  border:1px solid rgba(233,237,232,.22);
  color:#E4E9E2;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-panel{
  border:1px solid rgba(233,237,232,.20);
  background:rgba(20,54,52,.55);
  border-radius:var(--r-card);
  padding:24px 24px 18px;
}
.hero-panel-title{
  font-size:13px;letter-spacing:.1em;color:#C9D6CE;margin:0 0 14px;font-weight:600;
}
.hero-panel-list{list-style:none;margin:0;padding:0;}
.hero-panel-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;line-height:1.75;color:rgba(233,237,232,.88);
  padding:11px 0;border-bottom:1px solid rgba(233,237,232,.14);margin:0;
}
.hero-panel-list li:last-child{border-bottom:0;padding-bottom:0;}
.hero-panel-list .dot{
  width:6px;height:6px;border-radius:2px;background:var(--terracotta);flex:0 0 auto;margin-top:9px;
}
.hero-panel-list strong{color:#fff;font-weight:600;}

/* ===== Sections ===== */
.section{padding:84px 0;}
.section--mist{background:var(--mist);}
.section--paper{background:var(--paper);}

/* KPI */
.kpi-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  margin-top:8px;
}
.kpi-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.kpi-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CFC7B6;}
.kpi-main{
  grid-row:span 2;
  background:var(--pine);
  border-color:var(--pine);
  color:#E9EDE8;
}
.kpi-main:hover{border-color:var(--pine-deep);}
.kpi-main .kpi-label,.kpi-main .kpi-note{color:rgba(233,237,232,.82);}
.kpi-main .kpi-name{color:#fff;}
.kpi-tag{
  display:inline-block;
  font-size:12px;
  padding:4px 9px;
  border-radius:var(--r-tag);
  background:var(--tag-light);
  color:var(--pine);
  margin-bottom:16px;
  align-self:flex-start;
}
.kpi-main .kpi-tag{background:rgba(233,237,232,.16);color:#EAF0E8;}
.kpi-name{font-size:17px;font-weight:700;line-height:1.5;margin:0 0 16px;}
.kpi-value{
  font-family:var(--font-num);
  font-size:clamp(38px,4.4vw,52px);
  line-height:1;
  font-variant-numeric:tabular-nums;
  color:var(--terracotta);
  letter-spacing:.01em;
}
.kpi-main .kpi-value{color:#F0B69F;}
.kpi-unit{font-size:13.5px;color:var(--ink-2);margin:10px 0 0;}
.kpi-main .kpi-unit{color:rgba(233,237,232,.86);}
.kpi-note{
  font-size:12.5px;line-height:1.7;color:var(--ink-2);
  margin:14px 0 0;padding-top:14px;border-top:1px dashed var(--line);
}
.kpi-main .kpi-note{border-top-color:rgba(233,237,232,.28);}
.kpi-note-card{
  background:var(--tag-light);
  border:1px dashed #C9D2C3;
  border-radius:var(--r-card);
  padding:22px 24px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.kpi-note-card h3{margin:0 0 8px;font-size:16px;color:var(--pine);}
.kpi-note-card p{margin:0;font-size:13.5px;line-height:1.8;color:var(--ink-2);}

/* Compare */
.compare-list{display:grid;gap:16px;}
.compare-row{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px 20px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:26px;
  box-shadow:var(--shadow);
  transition:box-shadow .22s ease,transform .22s ease;
}
.compare-row:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.compare-side{display:flex;flex-direction:column;gap:8px;}
.compare-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.06em;font-weight:700;margin:0;
}
.compare-card--plain .compare-kicker{color:var(--ink-2);}
.compare-card--ours .compare-kicker{color:var(--pine);}
.compare-text{font-size:15px;line-height:1.85;margin:0;color:var(--ink);}
.compare-card--plain .compare-text{color:var(--ink-2);}
.bar{
  display:block;height:8px;border-radius:999px;background:#E7E2D6;overflow:hidden;margin-top:6px;
}
.bar i{display:block;height:100%;border-radius:999px;background:#C9C2B2;}
.bar--ours i{background:linear-gradient(90deg,var(--pine),var(--turf));}
.icon-badge{
  width:20px;height:20px;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
}
.icon-badge--off{background:#EFEADF;color:#8B8375;}
.icon-badge--on{background:var(--tag-light);color:var(--success);}
.compare-foot{
  font-size:13px;color:var(--ink-2);margin:18px 0 0;
}
.compare-foot a{color:var(--pine);text-decoration:underline;text-underline-offset:4px;}
.compare-foot a:hover{color:var(--terracotta);}

/* Method */
.method-wrap{display:grid;grid-template-columns:8fr 4fr;gap:44px;align-items:start;}
.method-list{list-style:none;margin:0;padding:0;position:relative;}
.method-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  padding:22px 0;
  border-top:1px solid var(--line);
}
.method-item:last-child{border-bottom:1px solid var(--line);}
.method-num{
  font-family:var(--font-num);
  font-size:32px;
  line-height:1;
  color:var(--terracotta);
  font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.method-body h3{margin:0 0 8px;font-size:19px;}
.method-body p{margin:0;font-size:15px;line-height:1.85;color:var(--ink-2);}
.method-figure{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:var(--shadow);
}
.method-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease;}
.method-figure:hover img{transform:scale(1.03);}
.method-figure figcaption{
  font-size:12.5px;color:var(--ink-2);padding:12px 16px;border-top:1px solid var(--line);line-height:1.7;
}

/* Accordion */
.glossary-grid{display:grid;grid-template-columns:4fr 8fr;gap:44px;align-items:start;}
.glossary-aside h2{margin-top:0;}
.glossary-aside p{font-size:15px;color:var(--ink-2);line-height:1.9;}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow);margin-top:20px;
}
.aside-card h3{margin:0 0 8px;font-size:16px;color:var(--pine);}
.aside-card p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.8;}
.accordion{
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin:0;
  list-style:none;
  padding:0;
  box-shadow:var(--shadow);
}
.accordion li{margin:0;padding:0;}
.accordion-title{
  display:block;
  position:relative;
  padding:20px 58px 20px 24px;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  border-bottom:1px solid var(--line);
  line-height:1.6;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.accordion-title:hover{background:#FBF8F0;color:var(--pine);}
.accordion-title::after{
  content:"+";
  position:absolute;right:24px;top:50%;
  transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--pine);
  transition:transform .22s ease,color .2s ease;
  line-height:1;
}
.accordion-title[aria-expanded="true"]{
  background:#FBF8F0;
  color:var(--pine);
  box-shadow:inset 3px 0 0 var(--terracotta);
}
.accordion-title[aria-expanded="true"]::after{transform:translateY(-50%) rotate(45deg);color:var(--terracotta);}
.accordion-content{
  padding:18px 24px 22px;
  font-size:15px;
  line-height:1.88;
  color:var(--ink-2);
  background:#FCFAF5;
  border-bottom:1px solid var(--line);
}
.accordion-content p:last-child{margin-bottom:0;}
.accordion-content a{color:var(--pine);text-decoration:underline;text-underline-offset:4px;}
.accordion-content a:hover{color:var(--terracotta);}
.accordion li:last-child .accordion-title{border-bottom:0;}

/* CTA band */
.cta-band{
  background:var(--pine-deep);
  color:#E9EDE8;
  padding:56px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(233,237,232,.05) 0 1px,transparent 1px 96px);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:1fr auto;
  gap:32px;
  align-items:center;
}
.cta-inner h2{color:#fff;margin:0 0 10px;font-size:clamp(22px,2.6vw,30px);}
.cta-inner p{margin:0;font-size:15px;line-height:1.85;color:rgba(233,237,232,.85);max-width:680px;}

/* Footer */
.site-footer{background:#17201E;color:#E9EDE8;padding:64px 0 28px;font-size:15px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .brand{color:#F2F5EF;margin-bottom:16px;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-mark{background:#2A3A36;color:#E9EDE8;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(233,237,232,.75);margin:0 0 14px;max-width:320px;}
.footer-contact{font-size:13.5px;line-height:1.9;color:rgba(233,237,232,.62);margin:0;}
.footer-title{font-size:14px;letter-spacing:.08em;color:#fff;margin:0 0 16px;font-weight:700;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin:0 0 10px;line-height:1.6;}
.footer-links a,.footer-links span{color:rgba(233,237,232,.72);font-size:14px;}
.footer-links a:hover{color:var(--terracotta);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(233,237,232,.14);
  font-size:12.5px;color:rgba(233,237,232,.55);
}

/* Responsive */
@media screen and (max-width:1200px){
  .hero-grid{gap:36px;}
  .method-wrap,.glossary-grid{gap:32px;}
}
@media screen and (max-width:991px){
  .main-nav{display:none;}
  .header-inner{height:62px;}
  .brand-text{font-size:16px;}
  .cta-full{display:none;}
  .cta-short{display:inline;}
  .mobile-tabbar{display:block;}
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom));}
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .section{padding:60px 0;}
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .kpi-main{grid-row:span 2;}
  .method-wrap{grid-template-columns:1fr;}
  .method-figure{order:-1;max-width:520px;}
  .glossary-grid{grid-template-columns:1fr;}
  .glossary-aside{margin-bottom:8px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;}
}
@media screen and (max-width:768px){
  body{font-size:16px;}
  .container{padding-left:18px;padding-right:18px;}
  .result-hero{padding:40px 0 46px;}
  .result-hero h1{font-size:clamp(28px,7vw,34px);}
  .hero-actions .btn{flex:1 1 100%;}
  .compare-row{grid-template-columns:1fr;gap:16px;padding:20px;}
  .compare-card--plain{padding-bottom:14px;border-bottom:1px dashed var(--line);}
  .kpi-grid{grid-template-columns:1fr;}
  .kpi-main{grid-row:auto;}
  .method-item{grid-template-columns:48px 1fr;gap:14px;}
  .method-num{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-brand{padding-bottom:22px;border-bottom:1px solid rgba(233,237,232,.14);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:480px){
  h2{font-size:23px;}
  .section{padding:48px 0;}
  .kpi-card,.kpi-note-card{padding:20px;}
  .accordion-title{font-size:15.5px;padding:17px 52px 17px 18px;}
  .accordion-content{padding:16px 18px 20px;}
  .brand-mark{width:30px;height:30px;}
  .brand-text{font-size:15px;}
}

/* roulang page: category3 */
:root{
  --teal:#1E4D4A;
  --teal-dark:#143634;
  --orange:#C65A3A;
  --orange-dark:#A9472C;
  --grass:#6F8F4E;
  --paper:#F7F4EC;
  --mist:#EEF1EA;
  --ink:#17201E;
  --muted:#5E6B66;
  --line:#DDD6C8;
  --tag-light:#EDF1E8;
  --tag-dark:#1F2A27;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-tag:4px;
  --shadow-sm:0 8px 24px rgba(23,32,30,.06);
  --shadow-md:0 14px 30px rgba(23,32,30,.10);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block;border-style:none}
a{color:var(--teal);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--orange)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(198,90,58,.38);outline-offset:3px}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-decoration:none;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(198,90,58,.22)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(198,90,58,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--teal);color:var(--teal)}
.btn-ghost:hover{background:var(--teal);color:#fff;border-color:var(--teal)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(247,244,236,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 20px rgba(23,32,30,.08)}
.header-inner{display:flex;align-items:center;gap:26px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--teal);color:#fff;
  display:grid;place-items:center;border:1px solid var(--teal-dark);flex-shrink:0;
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.02em;white-space:nowrap}
.brand:hover .brand-text{color:var(--teal)}
.main-nav{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;color:#3A4643;padding:6px 2px;text-decoration:none;
  transition:color .2s ease;
}
.nav-link:hover{color:var(--teal)}
.nav-link.is-active{color:var(--teal);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--teal);border-radius:2px;
}
.header-cta{flex-shrink:0;margin-left:4px}
.cta-mobile{display:none}

/* ---------- 面包屑 / 栏目标签条 ---------- */
.breadcrumb-bar{padding:16px 0 0;background:var(--paper)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb .sep{color:#B7BFAF}
.breadcrumb .current{color:var(--teal);font-weight:600}
.chip-bar{display:flex;gap:8px;overflow-x:auto;padding:18px 0 0;scrollbar-width:none}
.chip-bar::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--radius-tag);background:#fff;border:1px solid var(--line);
  font-size:13px;color:#43514C;white-space:nowrap;transition:all .2s ease;
}
.chip:hover{background:var(--mist);color:var(--teal);border-color:#C9C2B1}
.chip.is-active{background:var(--teal);border-color:var(--teal);color:#fff;font-weight:600}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:40px 0 58px;
  background:linear-gradient(180deg,#F7F4EC 0%,#F2EFE5 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(30,77,74,.05) 0 1px,transparent 1px 92px);
}
.page-hero .container{position:relative;z-index:1}
.hero-row{row-gap:38px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--teal);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--orange);border-radius:2px;display:inline-block}
.page-hero h1{
  font-size:46px;line-height:1.2;font-weight:800;color:var(--ink);letter-spacing:-.005em;
  margin-bottom:18px;
}
.hero-lead{font-size:16.5px;line-height:1.9;color:var(--muted);max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags li{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:#3E4A46;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-tag);padding:6px 12px;
}
.hero-tags li::before{content:"";width:6px;height:6px;border-radius:1px;background:var(--grass)}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);
}
.hero-media-tag{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(23,32,30,.82);color:#F2F5F0;border-radius:10px;
  padding:12px 14px;font-size:13px;line-height:1.6;
}
.hero-media-tag strong{display:block;color:#fff;font-size:14px;margin-bottom:2px}

/* ---------- 通用板块 ---------- */
.section{padding:78px 0}
.section-mist{background:var(--mist)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:800;color:var(--ink);margin-bottom:14px}
.section-head p{font-size:15.5px;line-height:1.85;color:var(--muted)}

/* ---------- 场景模块 ---------- */
.scene-block{padding:52px 0;border-top:1px solid var(--line)}
.scene-block:first-of-type{border-top:0;padding-top:0}
.scene-block:last-of-type{padding-bottom:0}
.scene-row{align-items:center;row-gap:28px}
.scene-no{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.1em;color:var(--orange);font-weight:700;margin-bottom:12px;
}
.scene-no::before{content:"";width:18px;height:2px;background:var(--orange);display:inline-block}
.scene-copy h3{font-size:25px;line-height:1.4;font-weight:700;color:var(--ink);margin-bottom:12px}
.scene-copy .scene-lead{font-size:15.5px;line-height:1.85;color:var(--muted);margin-bottom:22px}
.scene-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;
  box-shadow:var(--shadow-sm);transition:transform .24s ease;
}
.scene-media img.square{aspect-ratio:1/1}
.scene-media:hover img{transform:scale(1.02)}
.fact-list{border-top:1px dashed var(--line)}
.fact-row{display:grid;grid-template-columns:92px 1fr;gap:14px;padding:13px 0;border-bottom:1px dashed var(--line)}
.fact-row dt{font-size:13px;color:var(--teal);font-weight:600;letter-spacing:.02em}
.fact-row dd{font-size:14.5px;line-height:1.8;color:#3C4945}
.scene-wide-img{margin-bottom:28px}
.scene-wide-img img{width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-sm)}
.point-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:22px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#CFC7B6}
.point-card .point-no{
  display:inline-block;font-size:12px;font-weight:700;color:var(--teal);
  background:var(--tag-light);border-radius:var(--radius-tag);padding:2px 8px;margin-bottom:10px;
}
.point-card h4{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:8px}
.point-card p{font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- 落地节奏 ---------- */
.rhythm-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rhythm-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:24px 22px;transition:transform .22s ease,box-shadow .22s ease;
}
.rhythm-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.rhythm-item::before{
  content:"";position:absolute;top:0;left:22px;width:34px;height:3px;background:var(--orange);border-radius:0 0 3px 3px;
}
.rhythm-item .num{
  font-size:26px;font-weight:800;color:var(--teal);letter-spacing:.02em;
  font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:10px;
}
.rhythm-item h4{font-size:16.5px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.rhythm-item p{font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:0.8fr 1.9fr;gap:44px;align-items:start}
.faq-side h2{font-size:30px;line-height:1.35;font-weight:800;margin-bottom:14px}
.faq-side p{font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:20px}
.faq-side .side-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;
  color:var(--teal);border-bottom:2px solid rgba(30,77,74,.28);padding-bottom:2px;
}
.faq-side .side-link:hover{color:var(--orange);border-color:rgba(198,90,58,.4)}
.faq-acc{
  margin:0;list-style:none;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq-acc .accordion-item{border-bottom:1px solid var(--line);transition:background-color .2s ease}
.faq-acc .accordion-item:last-child{border-bottom:0}
.faq-acc .accordion-item.is-active{background:#FBF8F0;box-shadow:inset 3px 0 0 var(--orange)}
.faq-acc .accordion-title{
  display:block;position:relative;padding:18px 56px 18px 22px;border:0;
  font-size:16.5px;font-weight:600;line-height:1.6;color:var(--ink);background:transparent;
  transition:color .2s ease;
}
.faq-acc .accordion-title:hover{color:var(--teal)}
.faq-acc .accordion-title::after{
  content:"";position:absolute;right:22px;top:50%;width:12px;height:12px;
  transform:translateY(-50%);border-right:2px solid var(--teal);border-bottom:2px solid var(--teal);
  transition:transform .22s ease;
}
.faq-acc .accordion-item.is-active .accordion-title::after{
  transform:translateY(-70%) rotate(45deg);border-color:var(--orange);
}
.faq-acc .accordion-content{padding:0 22px 20px;border:0;background:transparent}
.faq-acc .accordion-content p{font-size:15px;line-height:1.9;color:var(--muted)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--teal);color:#F1F5F0;padding:56px 0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 84px);
}
.cta-inner{
  position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:26px;
}
.cta-inner h2{font-size:28px;line-height:1.4;font-weight:800;color:#fff;margin-bottom:10px}
.cta-inner p{font-size:15px;line-height:1.85;color:rgba(241,245,240,.82);max-width:640px}

/* ---------- 页脚 ---------- */
.site-footer{background:#17201E;color:#E9EDE8;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;padding-bottom:46px}
.site-footer .brand-mark{background:transparent;border-color:rgba(255,255,255,.34);color:#E9EDE8}
.site-footer .brand-text{color:#fff;font-size:18px}
.site-footer .brand:hover .brand-text{color:#F0C7B6}
.footer-desc{font-size:14px;line-height:1.85;color:#AEBAB5;margin:16px 0 14px;max-width:320px}
.footer-contact{font-size:13.5px;line-height:1.9;color:#93A19B}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px;font-size:14px}
.footer-links a{color:#B9C4BF}
.footer-links a:hover{color:var(--orange)}
.footer-links span{color:#8C9A94}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:12.5px;color:#8C9A94;
}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tabbar{display:none}
.tab-sheet{
  position:fixed;inset:0;z-index:95;background:rgba(23,32,30,.45);
  display:flex;align-items:flex-end;opacity:0;transition:opacity .2s ease;
}
.tab-sheet.is-open{opacity:1}
.tab-sheet-panel{
  width:100%;background:#fff;border-radius:16px 16px 0 0;padding:18px 20px calc(20px + env(safe-area-inset-bottom));
  transform:translateY(14px);transition:transform .22s ease;box-shadow:0 -12px 30px rgba(23,32,30,.18);
}
.tab-sheet.is-open .tab-sheet-panel{transform:translateY(0)}
.tab-sheet-panel a{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.tab-sheet-panel a:last-of-type{border-bottom:0}
.tab-sheet-close{
  width:100%;height:46px;margin-top:12px;border-radius:8px;border:1px solid var(--line);
  background:var(--mist);color:var(--teal);font-size:15px;font-weight:600;cursor:pointer;
}
.tab-sheet-close:hover{background:#E3E8DD}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-hero h1{font-size:40px}
  .rhythm-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .main-nav{display:none}
  .header-inner{height:62px;gap:12px}
  .brand-text{font-size:16px}
  .brand-mark{width:32px;height:32px}
  .header-cta{margin-left:auto;height:38px;padding:0 16px;font-size:14px}
  .cta-desktop{display:none}
  .cta-mobile{display:inline}
  body{padding-bottom:calc(78px + env(safe-area-inset-bottom))}
  .mobile-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:90;
    background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 18px rgba(23,32,30,.08);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{
    flex:1;position:relative;display:flex;flex-direction:column;align-items:center;gap:3px;
    padding:9px 0 8px;font-size:11px;line-height:1.3;color:#6B7772;
    background:transparent;border:0;text-decoration:none;cursor:pointer;
    transition:color .2s ease;
  }
  .tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
  .tab-item.is-active{color:var(--teal);font-weight:600}
  .tab-item.is-active::before{
    content:"";position:absolute;top:0;left:18%;right:18%;height:2px;background:var(--teal);border-radius:0 0 2px 2px;
  }
  .page-hero h1{font-size:34px}
  .hero-lead{font-size:15.5px}
  .faq-layout{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .section{padding:60px 0}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .page-hero{padding:28px 0 44px}
  .page-hero h1{font-size:30px}
  .section-head h2{font-size:25px}
  .scene-copy h3{font-size:21px}
  .rhythm-grid{grid-template-columns:1fr}
  .hero-actions .btn{flex:1 1 100%}
  .cta-inner h2{font-size:23px}
  .faq-acc .accordion-title{font-size:15.5px;padding:16px 48px 16px 18px}
  .faq-acc .accordion-title::after{right:18px}
  .faq-acc .accordion-content{padding:0 18px 18px}
  .fact-row{grid-template-columns:78px 1fr;gap:10px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .page-hero h1{font-size:28px}
  .section{padding:48px 0}
  .hero-tags li{font-size:12.5px}
  .scene-block{padding:38px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .point-card{padding:18px}
  .rhythm-item{padding:20px 18px}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --pine:#1E4D4A;
  --pine-deep:#143634;
  --clay:#C65A3A;
  --clay-deep:#A9472C;
  --grass:#6F8F4E;
  --paper:#F7F4EC;
  --mist:#EEF1EA;
  --ink:#17201E;
  --muted:#5E6B66;
  --line:#DDD6C8;
  --tag-light:#EDF1E8;
  --tag-dark:#1F2A27;
  --success:#3F7D5A;
  --warn:#B8862F;
  --error:#A8402F;
  --r-card:14px;
  --r-btn:8px;
  --r-tag:4px;
  --r-input:8px;
  --shadow-card:0 8px 24px rgba(23,32,30,.06);
  --shadow-hover:0 14px 30px rgba(23,32,30,.10);
  --container:1200px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--pine);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--clay);}
a:focus-visible{outline:3px solid rgba(198,90,58,.35);outline-offset:3px;border-radius:2px;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;letter-spacing:0;}
p{margin:0 0 1.05em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(198,90,58,.2);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .18s ease,box-shadow .2s ease;
  text-align:center;
}
.btn-primary{background:var(--clay);border-color:var(--clay);color:#fff;}
.btn-primary:hover{background:var(--clay-deep);border-color:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(198,90,58,.25);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--pine);color:var(--pine);}
.btn-ghost:hover{background:var(--pine);border-color:var(--pine);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible{outline:3px solid rgba(198,90,58,.4);outline-offset:2px;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(23,32,30,.08);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  flex:none;
}
.brand:hover{color:var(--pine);}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:8px;
  background:var(--pine);
  color:var(--paper);
  display:grid;
  place-items:center;
  flex:none;
}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link:hover{color:var(--pine);}
.nav-link.is-active{color:var(--pine);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--pine);
  border-radius:1px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;}
.btn-label-short{display:none;}

/* ============ 移动端底部 Tab ============ */
.mobile-tabs{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:95;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(23,32,30,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabs ul{display:flex;margin:0;padding:0;list-style:none;}
.mobile-tabs li{flex:1 1 0;min-width:0;}
.mobile-tabs a{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  padding:9px 2px 8px;
  font-size:10.5px;
  line-height:1.2;
  color:#6B7772;
  text-align:center;
}
.mobile-tabs a svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.mobile-tabs a.is-active{color:var(--pine);font-weight:600;}
.mobile-tabs a.is-active::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:24px;height:2px;
  background:var(--pine);
  border-radius:0 0 2px 2px;
}

/* ============ 面包屑 / 标签 / 小标 ============ */
.breadcrumb{
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
  line-height:1.7;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--clay);}
.breadcrumb .sep{margin:0 8px;color:#A9B2AC;}
.breadcrumb .current{color:var(--pine);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.12em;
  font-weight:600;
  color:var(--pine);
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;
  background:var(--pine);
  border-radius:1px;
  flex:none;
}

.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 9px;
  border-radius:var(--r-tag);
  font-size:12px;
  line-height:1;
  background:var(--tag-light);
  color:var(--pine);
  font-weight:500;
}
.tag-grass{background:rgba(111,143,78,.14);color:#4C6535;}
.tag-dark{background:var(--tag-dark);color:#E4EAE3;}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  padding:54px 0 46px;
  background:linear-gradient(180deg,#F9F6EF 0%,#F2EEE3 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(90deg,rgba(30,77,74,.05) 0 1px,transparent 1px 108px),
    repeating-linear-gradient(0deg,rgba(30,77,74,.035) 0 1px,transparent 1px 108px);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.page-hero h1{
  font-size:clamp(30px,4.1vw,46px);
  line-height:1.24;
  margin:14px 0 18px;
  max-width:840px;
}
.page-hero .lead{
  font-size:17px;
  line-height:1.85;
  color:var(--muted);
  max-width:780px;
  margin:0;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}

/* ============ 栏目标签条 ============ */
.cat-tabs-wrap{
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.cat-tabs{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:14px 0;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.cat-tabs::-webkit-scrollbar{display:none;}
.cat-tabs a{
  flex:none;
  height:34px;
  display:inline-flex;
  align-items:center;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-tag);
  font-size:13.5px;
  color:var(--ink);
  background:#fff;
  transition:all .2s ease;
}
.cat-tabs a:hover{color:var(--pine);border-color:var(--pine);}
.cat-tabs a.is-active{background:var(--pine);border-color:var(--pine);color:#fff;}

/* ============ 版块 ============ */
.section{padding:76px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.32;margin-top:12px;}

/* ============ 问答主体布局 ============ */
.qa-layout{
  display:grid;
  grid-template-columns:262px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.qa-side{
  position:sticky;
  top:100px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.filter-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--shadow-card);
}
.filter-title{
  font-size:14px;
  font-weight:700;
  margin:0 0 12px;
  color:var(--ink);
}
.filter-btn{
  display:block;
  width:100%;
  text-align:left;
  background:transparent;
  border:0;
  border-left:2px solid transparent;
  padding:9px 12px;
  margin-bottom:2px;
  font-size:14px;
  color:var(--muted);
  cursor:pointer;
  border-radius:0 6px 6px 0;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.filter-btn:hover{background:var(--mist);color:var(--pine);}
.filter-btn.is-active{
  background:var(--mist);
  color:var(--pine);
  font-weight:600;
  border-left-color:var(--clay);
}
.filter-btn:focus-visible{outline:3px solid rgba(198,90,58,.35);outline-offset:-2px;}

.mini-contact{
  background:var(--pine);
  color:#E7EEEA;
  border-radius:var(--r-card);
  padding:22px;
  border:1px solid var(--pine-deep);
}
.mini-contact h3{
  font-size:16px;
  color:#fff;
  margin:0 0 10px;
}
.mini-contact p{
  font-size:13.5px;
  line-height:1.8;
  color:#C3D1CB;
  margin:0 0 14px;
}
.mini-contact .contact-line{
  font-size:13px;
  color:#A9BEB7;
  line-height:1.9;
}
.mini-contact .btn{margin-top:16px;}

/* ============ 手风琴分组 ============ */
.acc-group{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  margin-bottom:24px;
}
.acc-group[hidden]{display:none;}
.group-head{
  display:flex;
  align-items:center;
  gap:12px;
  padding:18px 24px;
  background:#FBFAF5;
  border-bottom:1px solid var(--line);
}
.group-head h2{
  font-size:20px;
  line-height:1.4;
  margin:0;
}
.group-count{
  font-size:12px;
  color:var(--muted);
  background:var(--mist);
  border-radius:var(--r-tag);
  padding:2px 9px;
  line-height:1.7;
}

.acc-item{border-bottom:1px solid var(--line);}
.acc-item:last-child{border-bottom:0;}
.acc-trigger{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:17px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
  cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.acc-trigger:hover{background:#FBFAF5;color:var(--pine);}
.acc-trigger:focus-visible{outline:3px solid rgba(198,90,58,.32);outline-offset:-3px;}
.acc-trigger.is-open{color:var(--pine);}
.acc-icon{
  position:relative;
  flex:none;
  width:20px;
  height:20px;
  transition:transform .22s ease;
}
.acc-icon::before,
.acc-icon::after{
  content:"";
  position:absolute;
  background:var(--pine);
  border-radius:1px;
}
.acc-icon::before{left:0;top:9px;width:20px;height:2px;}
.acc-icon::after{left:9px;top:0;width:2px;height:20px;}
.acc-item.is-open .acc-icon{transform:rotate(45deg);}
.acc-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.acc-panel p{
  margin:0;
  padding:0 24px 20px 21px;
  border-left:3px solid transparent;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.acc-item.is-open{background:#FBFAF5;}
.acc-item.is-open .acc-panel p{border-left-color:var(--clay);}
.acc-panel a{color:var(--pine);text-decoration:underline;text-underline-offset:4px;}
.acc-panel a:hover{color:var(--clay);}

/* ============ CTA ============ */
.cta-band{
  background:var(--pine);
  border-radius:16px;
  padding:40px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:28px;
  align-items:center;
  border:1px solid var(--pine-deep);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 72px);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.35;
  margin:0 0 10px;
}
.cta-band p{
  color:#C3D1CB;
  font-size:15px;
  line-height:1.8;
  margin:0;
  max-width:620px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff;}
.cta-band .btn-ghost:hover{background:#fff;color:var(--pine);border-color:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:#E9EDE8;
  padding:64px 0 0;
  margin-top:80px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{color:#fff;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:#B9C3BC;
  margin:16px 0 12px;
  max-width:320px;
}
.footer-contact{
  font-size:13.5px;
  line-height:1.9;
  color:#98A49D;
  margin:0;
}
.footer-title{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin:0 0 16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
  list-style:none;
  margin:0;
  padding:0;
}
.footer-links a,
.footer-links span{
  font-size:14px;
  color:#B9C3BC;
  transition:color .2s ease;
}
.footer-links a:hover{color:var(--clay);}
.footer-bottom{
  border-top:1px solid rgba(233,237,232,.14);
  padding:18px 0;
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:12px;
  color:#98A49D;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .qa-layout{grid-template-columns:236px minmax(0,1fr);gap:34px;}
  .main-nav{gap:20px;}
}

@media (max-width:991px){
  .main-nav{display:none;}
  .header-inner{height:62px;gap:12px;}
  .brand-mark{width:30px;height:30px;border-radius:7px;}
  .brand-text{font-size:16px;}
  .header-actions{margin-left:auto;}
  .btn-label-full{display:none;}
  .btn-label-short{display:inline;}
  .header-actions .btn{height:36px;padding:0 16px;font-size:14px;}
  .mobile-tabs{display:block;}
  body{padding-bottom:calc(78px + env(safe-area-inset-bottom));}

  .qa-layout{grid-template-columns:minmax(0,1fr);gap:22px;}
  .qa-side{position:static;}
  .filter-panel{
    display:flex;
    gap:8px;
    overflow-x:auto;
    padding:12px;
    scrollbar-width:none;
  }
  .filter-panel::-webkit-scrollbar{display:none;}
  .filter-title{display:none;}
  .filter-btn{
    width:auto;
    flex:none;
    white-space:nowrap;
    border:1px solid var(--line);
    border-left:1px solid var(--line);
    border-radius:20px;
    padding:7px 15px;
    font-size:13px;
    margin-bottom:0;
  }
  .filter-btn.is-active{
    background:var(--pine);
    border-color:var(--pine);
    color:#fff;
  }
  .mini-contact{display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;padding:18px 20px;}
  .mini-contact h3{width:100%;margin:0;}
  .mini-contact p{margin:0;flex:1 1 220px;}
  .mini-contact .btn{margin-top:0;}

  .section{padding:52px 0;}
  .section-tight{padding:44px 0;}
  .page-hero{padding:36px 0 32px;}
  .page-hero .lead{font-size:16px;}

  .cta-band{grid-template-columns:minmax(0,1fr);padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{padding-top:48px;margin-top:56px;}
}

@media (max-width:767px){
  .container{padding:0 18px;}
  .page-hero h1{font-size:29px;}
  .acc-trigger{font-size:15.5px;padding:15px 18px;}
  .acc-panel p{padding:0 18px 18px 15px;font-size:14.5px;}
  .group-head{padding:15px 18px;}
  .group-head h2{font-size:18px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-desc{max-width:none;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

@media (max-width:480px){
  .page-hero h1{font-size:27px;}
  .section{padding:44px 0;}
  .mobile-tabs a{font-size:10px;}
  .mobile-tabs a svg{width:19px;height:19px;}
  .hero-meta .tag{font-size:11.5px;}
}

/* roulang page: category5 */
:root{
  --pine:#1E4D4A;
  --pine-deep:#143634;
  --clay:#C65A3A;
  --clay-deep:#A9472C;
  --paper:#F7F4EC;
  --mist:#EEF1EA;
  --ink:#17201E;
  --muted:#5E6B66;
  --line:#DDD6C8;
  --grass:#6F8F4E;
  --tag-light:#EDF1E8;
  --tag-dark:#1F2A27;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-tag:4px;
  --shadow-sm:0 8px 24px rgba(23,32,30,.06);
  --shadow-md:0 14px 30px rgba(23,32,30,.10);
  --space-section:88px;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  text-align:left;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
body,button,input,select,textarea{font-family:var(--font-sans);}
img{max-width:100%;display:block;height:auto;}
a{color:var(--pine);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--clay);}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:0;line-height:1.35;}
ul,ol{margin:0;padding:0;list-style:none;}
button{background:none;border:0;padding:0;cursor:pointer;color:inherit;font:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:3px solid rgba(198,90,58,.45);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--space-section) 0;position:relative;}
.section--mist{background:var(--mist);}
.section--tight{padding:56px 0;}
.section-head{margin-bottom:40px;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--pine);
  font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--clay);border-radius:1px;display:block;}
.section-head h2{font-size:32px;line-height:1.3;}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--muted);max-width:660px;}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.text-link{font-size:15px;font-weight:600;color:var(--pine);border-bottom:1px solid rgba(30,77,74,.35);padding-bottom:2px;}
.text-link:hover{color:var(--clay);border-color:rgba(198,90,58,.5);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,236,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(23,32,30,.08);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:76px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--pine);color:#F4F1E6;border-radius:6px;
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 13px;border-radius:6px;
  font-size:15px;color:#3E4A46;white-space:nowrap;
}
.nav-link:hover{background:var(--mist);color:var(--pine);}
.nav-link.is-active{color:var(--pine);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;background:var(--pine);border-radius:2px;
}
.header-cta{display:flex;align-items:center;gap:10px;}
.mobile-consult{display:none;font-size:15px;font-weight:700;color:var(--clay);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  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,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--clay);color:#FFF8F2;box-shadow:0 6px 16px rgba(198,90,58,.22);}
.btn-primary:hover{background:var(--clay-deep);color:#FFF8F2;transform:translateY(-1px);box-shadow:0 10px 22px rgba(198,90,58,.26);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--pine);border-color:var(--pine);}
.btn-ghost:hover{background:var(--pine);color:#F4F1E6;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- Breadcrumb & chips ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:24px 0 0;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--pine);}
.crumb .sep{color:#B6BDB7;}
.crumb .current{color:var(--pine);font-weight:600;}

.chip-bar{
  display:flex;gap:8px;overflow-x:auto;padding:18px 0 0;
  scrollbar-width:thin;
}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--radius-tag);
  font-size:13px;color:#41504B;white-space:nowrap;
  transition:all .18s ease;
}
.chip:hover{border-color:var(--pine);color:var(--pine);background:var(--mist);}
.chip.is-active{background:var(--pine);border-color:var(--pine);color:#F4F1E6;font-weight:600;}

/* ---------- Hero ---------- */
.page-hero{padding:8px 0 64px;position:relative;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(30,77,74,.05) 0 1px,transparent 1px 96px);
  opacity:.9;
}
.hero-grid{
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
  position:relative;z-index:1;
}
.page-hero h1{
  font-size:46px;line-height:1.22;margin:18px 0 20px;
}
.page-hero h1 .accent{color:var(--pine);}
.hero-lead{font-size:17px;line-height:1.85;color:#3D4A46;max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--radius-tag);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--tag-light);color:var(--pine);border:1px solid rgba(30,77,74,.14);
}
.tag--clay{background:rgba(198,90,58,.10);color:var(--clay-deep);border-color:rgba(198,90,58,.22);}
.tag--grass{background:rgba(111,143,78,.13);color:#4C6B33;border-color:rgba(111,143,78,.26);}
.hero-visual{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,54,52,.10) 0%,rgba(20,54,52,.62) 100%);
}
.hero-visual figcaption{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:2;color:#F4F1E6;
}
.hero-visual .cap-title{font-size:17px;font-weight:700;display:block;margin-bottom:4px;}
.hero-visual .cap-sub{font-size:13px;color:rgba(244,241,230,.82);line-height:1.7;display:block;}

/* ---------- Flow axis ---------- */
.flow-axis{
  display:grid;grid-template-columns:repeat(5,1fr);
  margin-top:8px;
}
.flow-step{position:relative;padding:0 20px 0 0;}
.flow-step::after{
  content:"";position:absolute;left:58px;right:10px;top:22px;height:1px;
  background:linear-gradient(90deg,rgba(30,77,74,.55),rgba(30,77,74,.12));
}
.flow-step:last-child{padding-right:0;}
.flow-step:last-child::after{display:none;}
.step-dot{position:relative;z-index:1;}
.step-dot{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:6px;
  background:#FFFFFF;border:1px solid var(--pine);color:var(--pine);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  transition:all .2s ease;
}
.flow-step:hover .step-dot{background:var(--pine);color:#F4F1E6;transform:translateY(-2px);}
.flow-step h3{font-size:19px;margin:20px 0 10px;}
.flow-step p{font-size:14.5px;line-height:1.8;color:var(--muted);margin-bottom:14px;}
.step-meta{
  display:inline-block;font-size:12.5px;color:#4C6B33;
  background:rgba(111,143,78,.13);border-radius:var(--radius-tag);
  padding:3px 9px;line-height:1.6;
}

/* ---------- Coverage ---------- */
.coverage-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.area-card{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.area-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#C9C1AF;}
.area-head{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.area-icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--mist);color:var(--pine);
}
.area-card h3{font-size:18px;}
.area-card p{font-size:14.5px;line-height:1.8;color:var(--muted);margin-bottom:0;}
.area-card .cities{
  display:block;margin-top:14px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:#4A5751;
}

/* ---------- Boundary / numbered rows ---------- */
.rule-list{border-top:1px solid var(--line);}
.rule-row{
  display:grid;grid-template-columns:96px 1fr;gap:28px;
  padding:28px 0;border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.rule-row:hover{background:rgba(237,241,232,.55);}
.rule-num{
  font-size:28px;font-weight:700;color:var(--pine);
  font-variant-numeric:tabular-nums;line-height:1;letter-spacing:.02em;
}
.rule-body h3{font-size:20px;margin-bottom:8px;}
.rule-body p{font-size:15.5px;line-height:1.85;color:var(--muted);margin-bottom:0;max-width:760px;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-aside h2{font-size:32px;line-height:1.3;margin-bottom:16px;}
.faq-aside p{font-size:15.5px;line-height:1.85;color:var(--muted);}
.faq-aside .text-link{display:inline-block;margin-top:6px;}
.faq-list{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:background-color .2s ease,color .2s ease;
}
.faq-q:hover{background:var(--mist);color:var(--pine);}
.faq-item.is-open .faq-q{background:#FBF8F0;color:var(--pine);}
.faq-icon{
  position:relative;flex:0 0 18px;width:18px;height:18px;
  transition:transform .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--pine);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:#41504B;}
.faq-a[hidden]{display:none;}
.faq-a p:last-child{margin-bottom:0;}
.faq-item.is-open{box-shadow:inset 3px 0 0 var(--clay);}

/* ---------- Form ---------- */
.contact-section{background:var(--pine-deep);color:#E9EDE8;position:relative;overflow:hidden;}
.contact-section::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 110px);
}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;position:relative;z-index:1;}
.contact-info .eyebrow{color:#EFD9CB;}
.contact-info .eyebrow::before{background:var(--clay);}
.contact-info h2{font-size:32px;line-height:1.3;color:#F6F3E9;margin-bottom:16px;}
.contact-info p{font-size:15.5px;line-height:1.9;color:rgba(233,237,232,.78);}
.contact-list{margin-top:28px;border-top:1px solid rgba(233,237,232,.18);}
.contact-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:14px 0;border-bottom:1px solid rgba(233,237,232,.18);
  font-size:14.5px;color:rgba(233,237,232,.86);
}
.contact-list li span:first-child{color:rgba(233,237,232,.6);}
.form-card{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:0 18px 40px rgba(9,24,23,.28);color:var(--ink);
}
.form-card h3{font-size:21px;margin-bottom:6px;}
.form-card .form-note{font-size:13.5px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:#33403C;margin-bottom:7px;}
.field .req{color:var(--clay);margin-left:3px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#FCFAF4;color:var(--ink);
  font-size:15px;padding:12px 14px;line-height:1.6;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  margin-bottom:0;height:auto;
}
.field textarea{min-height:112px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--pine);background:#FFFFFF;
  box-shadow:0 0 0 3px rgba(30,77,74,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:#A8402F;background:#FDF6F4;
}
.field-error{display:none;font-size:12.5px;color:#A8402F;margin-top:6px;}
.field.has-error .field-error{display:block;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:4px 0 20px;}
.check-row input[type="checkbox"]{margin-top:5px;width:16px;height:16px;accent-color:var(--pine);}
.check-row label{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0;font-weight:400;}
.check-row.has-error label{color:#A8402F;}
.form-hint{font-size:12.5px;color:var(--muted);margin-top:12px;margin-bottom:0;}
.form-success{
  display:none;text-align:center;padding:34px 12px;
}
.form-success.is-visible{display:block;}
.success-mark{
  width:56px;height:56px;border-radius:14px;margin:0 auto 18px;
  background:rgba(63,125,90,.12);color:#3F7D5A;
  display:flex;align-items:center;justify-content:center;
}
.form-success h4{font-size:20px;margin-bottom:10px;}
.form-success p{font-size:14.5px;color:var(--muted);margin-bottom:0;}

/* ---------- Image band ---------- */
.image-band{position:relative;height:240px;overflow:hidden;}
.image-band img{width:100%;height:100%;object-fit:cover;}
.image-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(20,54,52,.82) 0%,rgba(20,54,52,.42) 60%,rgba(20,54,52,.20) 100%);
}
.image-band .band-inner{
  position:absolute;inset:0;z-index:2;display:flex;align-items:center;
}
.band-copy{max-width:620px;color:#F6F3E9;}
.band-copy .band-tag{
  display:inline-block;font-size:12px;letter-spacing:.12em;color:#EFD9CB;
  border-left:3px solid var(--clay);padding-left:10px;margin-bottom:12px;
}
.band-copy strong{display:block;font-size:26px;line-height:1.4;font-weight:700;}
.band-copy span.band-sub{display:block;font-size:14.5px;color:rgba(246,243,233,.8);margin-top:8px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#E9EDE8;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{color:#F6F3E9;}
.footer-brand .brand-mark{background:var(--pine);color:#F4F1E6;}
.footer-brand .brand-text{font-size:18px;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(233,237,232,.72);margin:16px 0 12px;max-width:300px;}
.footer-contact{font-size:13px;line-height:1.9;color:rgba(233,237,232,.6);margin:0;}
.footer-title{font-size:14px;font-weight:700;color:#F6F3E9;margin-bottom:16px;letter-spacing:.04em;}
.footer-links li{margin-bottom:10px;}
.footer-links a,.footer-links span{font-size:14px;color:rgba(233,237,232,.72);}
.footer-links a:hover{color:var(--clay);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(233,237,232,.16);
  padding:20px 0 26px;font-size:12px;color:rgba(233,237,232,.55);
}

/* ---------- Mobile tabs ---------- */
.mobile-tabs{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#FFFFFF;border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(23,32,30,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabs ul{display:flex;align-items:stretch;margin:0;padding:0;list-style:none;}
.mobile-tabs li{flex:1 1 0;}
.mobile-tabs a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:62px;font-size:11px;color:#6B7772;
}
.mobile-tabs a svg{width:22px;height:22px;stroke:#6B7772;fill:none;stroke-width:1.6;}
.mobile-tabs a.is-active{color:var(--pine);font-weight:700;}
.mobile-tabs a.is-active svg{stroke:var(--pine);}
.mobile-tabs a.is-active::before{
  content:"";position:absolute;top:0;left:22%;right:22%;height:2px;background:var(--pine);border-radius:0 0 2px 2px;
}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .container{padding:0 22px;}
  .page-hero h1{font-size:42px;}
  .nav-link{padding:10px 10px;font-size:14.5px;}
  .hero-grid{gap:40px;}
  .faq-layout{gap:40px;}
  .contact-grid{gap:40px;}
}
@media (max-width:991px){
  :root{--space-section:64px;}
  .main-nav{display:none;}
  .header-cta{display:none;}
  .mobile-consult{display:inline-block;margin-left:auto;padding:6px 10px;border:1px solid rgba(198,90,58,.4);border-radius:6px;}
  .header-inner{height:60px;gap:12px;}
  .brand-text{font-size:16px;}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;}
  .page-hero h1{font-size:34px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:2;}
  .coverage-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .flow-axis{grid-template-columns:1fr;}
  .flow-step{padding:0 0 30px 66px;}
  .flow-step::after{
    left:21px;right:auto;top:52px;width:1px;height:calc(100% - 44px);
    background:linear-gradient(180deg,rgba(30,77,74,.5),rgba(30,77,74,.12));
  }
  .step-dot{position:absolute;left:0;top:0;}
  .flow-step h3{margin-top:0;}
  .mobile-tabs{display:block;}
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom));}
}
@media (max-width:768px){
  :root{--space-section:56px;}
  .container{padding:0 18px;}
  .page-hero{padding:4px 0 48px;}
  .page-hero h1{font-size:31px;line-height:1.26;margin:16px 0 16px;}
  .hero-lead{font-size:16px;}
  .section-head h2,.faq-aside h2,.contact-info h2{font-size:26px;}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:12px;}
  .coverage-grid{grid-template-columns:1fr;}
  .rule-row{grid-template-columns:1fr;gap:12px;padding:24px 0;}
  .rule-num{font-size:24px;}
  .form-card{padding:24px;}
  .field-row{grid-template-columns:1fr;gap:0;}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:24px;}
  .footer-grid > div{padding:22px 0;border-bottom:1px solid rgba(233,237,232,.16);}
  .footer-grid > div:last-child{border-bottom:0;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .image-band{height:200px;}
  .band-copy strong{font-size:21px;}
  .faq-q{padding:18px 18px;font-size:15.5px;}
  .faq-a{padding:0 18px 20px;font-size:15px;}
  .area-card{padding:22px 20px;}
}
@media (max-width:480px){
  :root{--space-section:48px;}
  .page-hero h1{font-size:29px;}
  .brand-text{font-size:15px;}
  .btn{height:46px;padding:0 18px;font-size:14.5px;}
  .hero-tags{gap:8px;}
  .form-card{padding:20px;}
  .contact-list li{flex-direction:column;gap:4px;}
  .mobile-tabs a{height:60px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}