/* roulang page: index */
:root{
  --brand:#10453A;
  --brand-deep:#0A2E27;
  --accent:#FF7A29;
  --accent-dark:#E86A1C;
  --lime:#CBEF6A;
  --paper:#F5F6F1;
  --card:#FFFFFF;
  --line:#DDE4DA;
  --ink:#16211C;
  --ink-2:#4E5D56;
  --ink-3:#7B8880;
  --ok:#1F7A54;
  --err:#C8402F;
  --warn:#B4780E;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(22,33,28,.05);
  --sh-2:0 10px 28px rgba(16,69,58,.10);
  --sh-3:0 12px 40px rgba(0,0,0,.18);
  --tr:180ms cubic-bezier(.2,.7,.3,1);
  --sidebar:252px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--accent)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- App Shell ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar);
  background:var(--paper);
  border-right:1px solid var(--line);
  padding:26px 18px 18px;
  display:flex;
  flex-direction:column;
  gap:22px;
  z-index:60;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:11px;padding:2px 8px 0}
.brand-mark{
  width:40px;height:40px;flex:0 0 auto;
  border-radius:12px;
  background:var(--brand);
  color:#fff;
  display:grid;place-items:center;
  font-size:17px;font-weight:800;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.34;min-width:0}
.brand-text .b1{font-size:14.5px;font-weight:800;color:var(--brand);white-space:nowrap}
.brand-text .b2{font-size:12px;color:var(--ink-3);letter-spacing:.14em;white-space:nowrap}
.nav-block{display:flex;flex-direction:column;gap:6px}
.nav-label{font-size:11.5px;letter-spacing:.16em;color:var(--ink-3);padding:0 12px;margin-bottom:4px}
.nav{display:flex;flex-direction:column;gap:4px}
.nav a{
  position:relative;
  display:flex;align-items:center;
  min-height:44px;
  padding:0 12px 0 15px;
  border-radius:10px;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-2);
  transition:background var(--tr),color var(--tr);
}
.nav a::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:transparent;transition:background var(--tr);
}
.nav a:hover{background:rgba(16,69,58,.06);color:var(--brand)}
.nav a.active{background:rgba(16,69,58,.08);color:var(--brand);font-weight:700}
.nav a.active::before{background:var(--accent)}
.side-divider{height:1px;background:var(--line);margin:2px 8px}
.side-card{
  margin-top:auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px;
  box-shadow:var(--sh-1);
}
.side-card p{font-size:13px;line-height:1.7;color:var(--ink-2);margin-bottom:12px}
.side-card .btn{width:100%;height:42px;font-size:14px}
.side-copy{font-size:11.5px;color:var(--ink-3);line-height:1.7;padding:0 8px 2px}

/* ---------- Mobile topbar & drawer ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(245,246,241,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  z-index:80;
}
.topbar .brand{padding:0}
.topbar .brand-mark{width:34px;height:34px;font-size:15px;border-radius:10px}
.topbar .brand-text .b1{font-size:13.5px}
.topbar .brand-text .b2{font-size:11px}
.burger{
  width:44px;height:44px;border-radius:10px;
  display:grid;place-items:center;
  color:var(--brand);border:1px solid var(--line);background:#fff;
}
.overlay{
  position:fixed;inset:0;
  background:rgba(10,46,39,.55);
  opacity:0;visibility:hidden;
  transition:opacity var(--tr),visibility var(--tr);
  z-index:90;
}
.overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;
  width:84%;max-width:340px;
  background:var(--paper);
  box-shadow:0 12px 40px rgba(0,0,0,.28);
  transform:translateX(-102%);
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  z-index:95;
  padding:18px 16px 24px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;color:var(--brand);font-size:20px;
}
.drawer .nav a{min-height:48px;font-size:15px}
.drawer-foot{margin-top:auto;font-size:12px;color:var(--ink-3);line-height:1.7}

/* ---------- Layout ---------- */
.main{margin-left:var(--sidebar);min-height:100vh}
.container{max-width:1160px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.sec{padding:96px 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-num{
  font-size:12px;letter-spacing:.2em;color:var(--ink-3);
  font-variant-numeric:tabular-nums;margin-bottom:10px;font-weight:600;
}
.sec-title{font-size:30px;line-height:1.32;position:relative;padding-left:16px}
.sec-title::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;
  border-radius:2px;background:var(--brand);
}
.sec-lead{font-size:15px;color:var(--ink-2);margin-top:10px;max-width:640px;line-height:1.8}
.link-more{
  font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
}
.link-more span{transition:transform var(--tr)}
.link-more:hover{color:var(--accent)}
.link-more:hover span{transform:translateX(3px)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;
  transition:background var(--tr),color var(--tr),transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,41,.22)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(16,69,58,.06);color:var(--brand)}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;padding:52px 0 0;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-40px -10% auto -10%;height:520px;
  background:repeating-linear-gradient(45deg,rgba(16,69,58,.035) 0 1px,transparent 1px 14px);
  pointer-events:none;z-index:0;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:rgba(16,69,58,.08);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.hero h1{
  font-size:clamp(30px,3.4vw,44px);
  line-height:1.24;
  letter-spacing:-.015em;
  color:var(--ink);
}
.hero-sub{font-size:17px;color:var(--ink-2);margin-top:18px;line-height:1.75;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.badge{
  font-size:13px;line-height:1.6;color:var(--brand);
  background:rgba(203,239,106,.42);
  border:1px solid rgba(16,69,58,.12);
  border-radius:var(--r-sm);
  padding:5px 12px;font-weight:600;
}
.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:4/3;
  background:linear-gradient(140deg,#E4EBDF,#CBEF6A33);
  box-shadow:var(--sh-2);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(10,46,39,0) 38%,rgba(10,46,39,.78) 100%);
}
.hero-float{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
  display:flex;gap:10px;
  background:rgba(255,255,255,.95);
  border-radius:14px;padding:12px 14px;
  box-shadow:0 12px 28px rgba(10,46,39,.22);
}
.hero-float .hf{flex:1;min-width:0}
.hero-float .hf b{
  display:block;font-size:22px;font-weight:800;color:var(--brand);
  line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.hero-float .hf span{display:block;font-size:12px;color:var(--ink-3);line-height:1.5;margin-top:3px}

/* ---------- Stat band ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  margin-top:44px;
  padding:28px 32px;
  border-radius:var(--r-card);
  background:rgba(203,239,106,.22);
  background-image:repeating-linear-gradient(135deg,rgba(16,69,58,.04) 0 1px,transparent 1px 9px);
  border:1px solid rgba(16,69,58,.1);
}
.stat-num{
  font-size:clamp(34px,3.6vw,50px);font-weight:800;color:var(--brand);
  line-height:1.05;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.stat-num em{font-size:16px;font-style:normal;font-weight:700;margin-left:2px}
.stat-label{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.6}

/* ---------- Tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tile{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.tile:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(16,69,58,.28)}
.tile-icon{
  width:40px;height:40px;border-radius:12px;
  background:rgba(16,69,58,.08);
  color:var(--brand);
  display:grid;place-items:center;
  margin-bottom:16px;
}
.tile h3{font-size:19px;line-height:1.45;margin-bottom:8px}
.tile p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.tile .link-more{margin-top:18px;font-size:13.5px}
.tile-lead{
  grid-row:span 2;
  background:linear-gradient(170deg,#0A2E27 0%,#10453A 62%,#155845 100%);
  border-color:transparent;
  color:#E8F1EC;
}
.tile-lead h3{color:#fff;font-size:21px}
.tile-lead p{color:#B9CFC6}
.tile-lead .tile-icon{background:rgba(203,239,106,.18);color:var(--lime)}
.tile-lead .link-more{color:var(--lime)}
.tile-lead .link-more:hover{color:#fff}
.tile-lead .mini-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.tile-lead .mini-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13.5px;line-height:1.7;color:#C6DAD2;
}
.tile-lead .mini-list li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;
  background:var(--accent);margin-top:9px;
}

/* ---------- Compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cmp-panel{border-radius:var(--r-card);padding:24px;border:1px solid var(--line);background:var(--card)}
.cmp-panel--good{
  background:rgba(203,239,106,.16);
  border-color:rgba(16,69,58,.22);
}
.cmp-h{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:800;margin-bottom:8px;
}
.cmp-h .chip{
  font-size:11.5px;font-weight:700;letter-spacing:.08em;
  padding:2px 8px;border-radius:6px;background:#EEF1EC;color:var(--ink-3);
}
.cmp-panel--good .cmp-h .chip{background:rgba(255,122,41,.16);color:#B4520F}
.cmp-list{display:flex;flex-direction:column}
.cmp-row{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-top:1px solid rgba(16,69,58,.08);
  font-size:14.5px;line-height:1.7;color:var(--ink-2);
}
.cmp-row:first-child{border-top:0}
.mark{
  flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  margin-top:4px;display:grid;place-items:center;
}
.mark--no{border:1.5px solid #C3CCC5;background:#fff}
.mark--yes{background:var(--accent);color:#fff}

/* ---------- Posts (CMS) ---------- */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.post:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(16,69,58,.28)}
.post-cover{aspect-ratio:16/10;background:linear-gradient(140deg,#E4EBDF,#CBEF6A33);position:relative;overflow:hidden}
.post-cover img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1}
.post-cover::after{
  content:"华";position:absolute;inset:0;display:grid;place-items:center;
  font-size:26px;font-weight:800;color:rgba(16,69,58,.28);letter-spacing:.1em;
}
.post-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1}
.post-cat{
  align-self:flex-start;
  font-size:12px;font-weight:700;line-height:1.6;
  color:var(--brand);background:rgba(16,69,58,.08);
  border-radius:6px;padding:2px 8px;
}
.post-title{
  font-size:18px;line-height:1.5;font-weight:700;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post:hover .post-title{color:var(--brand)}
.post-desc{
  font-size:14px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.post-foot .read{font-weight:600;color:var(--brand);white-space:nowrap}
.post-foot .read:hover{color:var(--accent)}
.empty-state{
  grid-column:1/-1;
  min-height:80px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:36px 20px;
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);
  color:var(--ink-3);
}
.empty-state p{font-size:15px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 24px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:background var(--tr),color var(--tr);
}
.faq-q:hover{background:rgba(16,69,58,.04);color:var(--brand)}
.faq-q .ico{
  flex:0 0 auto;width:22px;height:22px;display:grid;place-items:center;
  color:var(--brand);transition:transform 220ms ease;
}
.faq-item.open .faq-q{color:var(--brand)}
.faq-item.open .faq-q .ico{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a-in{padding:0 24px 20px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- Contact ---------- */
.contact{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.contact-aside{padding-right:8px}
.contact-aside h2{font-size:28px;line-height:1.35;margin-bottom:14px}
.contact-aside p{font-size:15px;line-height:1.85;color:var(--ink-2)}
.contact-points{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.contact-points li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;line-height:1.7;color:var(--ink-2)}
.contact-points .dot{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:rgba(16,69,58,.08);color:var(--brand);
  display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:2px;
}
.contact-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1);
}
.form-ok{
  display:none;
  background:rgba(31,122,84,.1);
  border:1px solid rgba(31,122,84,.28);
  color:var(--ok);
  border-radius:var(--r-btn);
  padding:12px 16px;font-size:14px;margin-bottom:20px;
}
.form-ok.show{display:block}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;height:46px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;background:#fff;
  font-size:15px;color:var(--ink);
  transition:border-color var(--tr),box-shadow var(--tr);
  appearance:none;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.8;resize:vertical}
.field select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234E5D56' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  padding-right:40px;
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(16,69,58,.12);
}
.field .hint{font-size:13px;color:var(--ink-3);line-height:1.6}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.7;color:var(--ink-2)}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex:0 0 auto}
.form-actions{margin-top:20px}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:96px;
  background:var(--brand-deep);
  color:#C3D5CD;
  padding:56px clamp(20px,4vw,48px) 26px;
}
.footer-grid{
  max-width:1160px;margin:0 auto;
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;
}
.footer-brand .brand{margin-bottom:14px;padding:0}
.footer-brand .brand-mark{background:rgba(203,239,106,.16);color:var(--lime)}
.footer-brand .brand-text .b1{color:#fff}
.footer-brand .brand-text .b2{color:#8FA9A0}
.footer-brand p{font-size:13.5px;line-height:1.85;color:#98B2A8;max-width:280px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:#A9C2B8;transition:color var(--tr)}
.footer-col a:hover{color:var(--lime)}
.footer-col .ftext{font-size:13.5px;line-height:1.85;color:#98B2A8}
.footer-bottom{
  max-width:1160px;margin:40px auto 0;
  padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:#7E978D;
}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;
  width:44px;height:44px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;
  box-shadow:0 8px 24px rgba(10,46,39,.28);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--tr),transform var(--tr),visibility var(--tr),background var(--tr);
  z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--accent);color:#fff}

/* ---------- Responsive ---------- */
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidebar:216px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:60px}
  .hero{padding-top:36px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{max-width:560px}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:20px;padding:24px}
  .tiles{grid-template-columns:repeat(2,1fr);gap:20px}
  .tile-lead{grid-row:auto;grid-column:1/-1}
  .posts{grid-template-columns:repeat(2,1fr);gap:20px}
  .compare{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr;gap:28px}
  .contact-aside{padding-right:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .sec{padding-top:72px}
}
@media (max-width:767px){
  body{font-size:16px}
  .sec{padding-top:56px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .sec-title{font-size:24px}
  .hero h1{font-size:30px;line-height:1.3}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .tiles{grid-template-columns:1fr}
  .posts{grid-template-columns:1fr}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:16px;padding:20px}
  .cmp-panel{padding:18px}
  .cmp-row{font-size:14px}
  .tile{padding:20px}
  .faq-q{font-size:15px;padding:15px 18px}
  .faq-a-in{padding:0 18px 18px}
  .contact-card{padding:20px}
  .form-grid{grid-template-columns:1fr}
  .site-footer{margin-top:56px;padding-top:40px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .hero-float{position:static;margin:12px;left:auto;right:auto;bottom:auto}
  .hero-media{aspect-ratio:auto}
  .hero-media img{height:220px}
  .to-top{right:14px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .tile:hover,.post:hover,.btn-primary:hover{transform:none}
}

/* roulang page: article */
:root{
  --brand:#10453A;
  --brand-deep:#0A2E27;
  --accent:#FF7A29;
  --accent-dark:#E86A1C;
  --lime:#CBEF6A;
  --paper:#F5F6F1;
  --card:#FFFFFF;
  --line:#DDE4DA;
  --ink:#16211C;
  --ink-2:#4E5D56;
  --ink-3:#7B8880;
  --ok:#1F7A54;
  --err:#C8402F;
  --warn:#B4780E;
  --r-btn:10px;
  --r-sm:8px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(22,33,28,.05);
  --sh-2:0 10px 28px rgba(16,69,58,.10);
  --sh-3:0 12px 40px rgba(0,0,0,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar:252px;
}
*,*::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:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
::selection{background:rgba(203,239,106,.55);color:var(--brand-deep);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 48px;}

/* ---------- App Shell ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);z-index:60;
  display:flex;flex-direction:column;gap:20px;
  padding:22px 18px;
  background:var(--paper);
  border-right:1px solid var(--line);
  overflow-y:auto;
}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.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;border-radius:12px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;letter-spacing:0;
  box-shadow:0 4px 12px rgba(16,69,58,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text .b1{font-size:15px;font-weight:800;letter-spacing:-.2px;}
.brand-text .b2{font-size:12px;font-weight:600;color:var(--ink-3);letter-spacing:2px;}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--line);color:var(--brand);
  align-items:center;justify-content:center;cursor:pointer;
  transition:background .18s var(--ease),border-color .18s var(--ease);
}
.burger:hover{background:rgba(16,69,58,.06);border-color:rgba(16,69,58,.28);}
.nav-wrap{display:flex;flex-direction:column;gap:18px;flex:1;min-height:0;}
.nav{display:flex;flex-direction:column;gap:4px;}
.nav-label{
  font-size:11.5px;font-weight:700;letter-spacing:2px;color:var(--ink-3);
  padding:0 12px 6px;
}
.nav-item{
  position:relative;display:flex;align-items:center;gap:8px;
  min-height:44px;padding:0 12px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav-item:hover{background:rgba(16,69,58,.06);color:var(--brand);}
.nav-item.is-active{
  background:rgba(16,69,58,.08);color:var(--brand);font-weight:700;
  border-left-color:var(--accent);
}
.side-divider{height:1px;background:var(--line);margin:2px 0;}
.side-card{
  margin-top:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh-1);
}
.side-card p{font-size:13px;line-height:1.75;color:var(--ink-2);margin-bottom:12px;}
.side-copy{font-size:11.5px;color:var(--ink-3);line-height:1.6;}
.scrim{position:fixed;inset:0;background:rgba(10,46,39,.55);z-index:55;}
.main{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column;}
.main-body{flex:1;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,41,.24);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:rgba(16,69,58,.06);color:var(--brand);}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:var(--r-sm);}
.btn-block{width:100%;}
.link-arrow{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.link-arrow span{transition:transform .18s var(--ease);}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover span{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;
  background:rgba(16,69,58,.08);color:var(--brand);
  font-size:12px;font-weight:700;line-height:1.6;
}
.badge-lime{background:rgba(203,239,106,.35);color:var(--brand-deep);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:2px;color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:6px;
  font-size:13px;color:var(--ink-3);
  padding:26px 0 0;
}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:var(--line);}
.crumbs .cur{color:var(--ink-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{padding:20px 0 8px;}
.article-head h1{
  font-size:clamp(28px,3.2vw,38px);
  line-height:1.38;letter-spacing:-.4px;margin:14px 0 16px;
  font-weight:800;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13.5px;color:var(--ink-3);
}
.meta-row .dot{width:4px;height:4px;border-radius:999px;background:var(--line);}
.head-hero{
  margin-top:26px;border-radius:var(--r-lg);overflow:hidden;position:relative;
  background:linear-gradient(135deg,rgba(16,69,58,.16),rgba(203,239,106,.22));
  aspect-ratio:21/9;
}
.head-hero img{width:100%;height:100%;object-fit:cover;}
.head-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(10,46,39,0) 40%,rgba(10,46,39,.55) 100%);
}
.head-hero .hero-cap{
  position:absolute;left:22px;bottom:18px;z-index:2;color:#fff;
  font-size:13px;letter-spacing:.5px;
}

/* ---------- 正文布局 ---------- */
.post-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:40px;
  padding:34px 0 0;
  align-items:start;
}
.post-main{min-width:0;}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 30px;box-shadow:var(--sh-1);
}
.prose{font-size:16.5px;line-height:1.9;color:var(--ink);overflow-wrap:anywhere;}
.prose p{margin:0 0 18px;}
.prose h2{
  font-size:24px;line-height:1.5;margin:40px 0 14px;padding-left:12px;
  border-left:3px solid var(--brand);
}
.prose h3{font-size:19px;line-height:1.55;margin:28px 0 10px;}
.prose h4{font-size:16.5px;margin:22px 0 8px;}
.prose ul,.prose ol{padding-left:22px;margin:0 0 18px;list-style:revert;}
.prose li{line-height:1.85;margin-bottom:6px;}
.prose blockquote{
  margin:0 0 20px;padding:14px 18px;
  background:rgba(203,239,106,.18);
  border-left:3px solid var(--accent);
  border-radius:0 10px 10px 0;color:var(--ink-2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{width:100%;height:auto;border-radius:14px;margin:22px 0 8px;}
.prose figure{margin:22px 0;}
.prose figcaption{font-size:13px;color:var(--ink-3);text-align:center;line-height:1.7;}
.prose a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--accent);}
.prose table{
  display:block;width:100%;overflow-x:auto;
  border-collapse:collapse;font-size:15px;margin:0 0 20px;
  border:1px solid var(--line);border-radius:10px;
}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;line-height:1.7;}
.prose th{background:rgba(16,69,58,.06);font-weight:600;white-space:nowrap;}
.prose hr{border:0;border-top:1px solid var(--line);margin:30px 0;}
.prose code{
  background:rgba(16,69,58,.07);border-radius:6px;padding:1px 6px;
  font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.prose>*:first-child{margin-top:0;}

/* ---------- 侧边目录 ---------- */
.toc{display:none;}
.toc-inner{
  position:sticky;top:32px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 18px 16px;box-shadow:var(--sh-1);
}
.toc-title{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--ink-3);margin-bottom:12px;}
.toc a{
  display:block;padding:7px 0 7px 12px;border-left:3px solid transparent;
  font-size:14px;color:var(--ink-2);line-height:1.6;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.toc a:hover,.toc a:focus{color:var(--brand);border-left-color:var(--accent);}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:64px 20px;
}
.empty-state .ico{
  width:64px;height:64px;margin:0 auto 18px;border-radius:999px;
  background:rgba(16,69,58,.06);color:var(--ink-3);
  display:flex;align-items:center;justify-content:center;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:22px;}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  margin:26px 0 0;padding:20px 22px;
  border-radius:var(--r-card);
  background:rgba(203,239,106,.22);
  border:1px solid rgba(16,69,58,.14);
}
.notice .notice-ico{
  flex:0 0 36px;width:36px;height:36px;border-radius:10px;
  background:#fff;color:var(--brand);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.notice h3{font-size:15.5px;margin-bottom:4px;}
.notice p{font-size:14px;line-height:1.8;color:var(--ink-2);}

/* ---------- 板块 ---------- */
.section{padding:64px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:24px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(22px,2.4vw,28px);letter-spacing:-.3px;position:relative;padding-left:14px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  background:var(--brand);border-radius:3px;
}
.section-head .sub{font-size:14px;color:var(--ink-2);margin-top:6px;padding-left:14px;}

/* ---------- 相关推荐卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  color:inherit;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(16,69,58,.28);color:inherit;}
.thumb{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  background:rgba(203,239,106,.35);
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.post-card:hover .thumb img{transform:scale(1.04);}
.thumb .thumb-ph{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:34px;font-weight:800;color:rgba(16,69,58,.35);
}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body .badge{align-self:flex-start;}
.card-body h3{font-size:17px;line-height:1.55;font-weight:700;}
.card-body p{font-size:14px;line-height:1.75;color:var(--ink-2);}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--ink-3);
}

/* ---------- 咨询区 ---------- */
.consult{
  margin:72px 0 0;
  background:var(--brand-deep);
  border-radius:var(--r-lg);
  padding:40px 42px;
  color:#E8F0EA;
  position:relative;overflow:hidden;
}
.consult::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:999px;
  background:radial-gradient(circle,rgba(203,239,106,.22),transparent 68%);
}
.consult-grid{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:start;}
.consult h2{color:#fff;font-size:clamp(22px,2.4vw,27px);margin-bottom:12px;}
.consult .lead{font-size:14.5px;line-height:1.9;color:rgba(232,240,234,.78);margin-bottom:18px;}
.consult ul.ticks{display:flex;flex-direction:column;gap:10px;}
.consult ul.ticks li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(232,240,234,.86);line-height:1.7;
}
.consult ul.ticks li i{
  flex:0 0 20px;width:20px;height:20px;border-radius:999px;background:var(--accent);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-size:12px;margin-top:2px;
}
.form-card{
  background:#fff;border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-3);color:var(--ink);
}
.form-success{
  display:none;margin-bottom:16px;padding:11px 14px;border-radius:var(--r-sm);
  background:rgba(203,239,106,.32);color:var(--brand);font-size:13.5px;font-weight:600;
}
.form-success.show{display:block;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--ink);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:12px 14px;background:#fff;line-height:1.5;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input,.field select{height:46px;padding-top:0;padding-bottom:0;}
.field textarea{min-height:104px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(16,69,58,.12);
}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%234E5D56' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-tip{font-size:12.5px;color:var(--ink-3);line-height:1.7;margin-top:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  background:var(--brand-deep);color:#D7E4DC;
  padding:52px 0 0;
}
.site-footer .footer-grid{
  width:100%;max-width:1160px;margin:0 auto;padding:0 48px;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
}
.site-footer .brand{color:#fff;}
.site-footer .brand-mark{background:rgba(255,255,255,.12);box-shadow:none;color:#fff;}
.site-footer .brand-text .b1{color:#fff;}
.site-footer .brand-text .b2{color:rgba(215,228,220,.6);}
.site-footer .footer-brand p{
  margin-top:16px;font-size:13.5px;line-height:1.9;color:rgba(215,228,220,.72);max-width:32ch;
}
.site-footer h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.5px;}
.site-footer ul{display:flex;flex-direction:column;gap:10px;}
.site-footer ul a{font-size:13.5px;color:rgba(215,228,220,.78);}
.site-footer ul a:hover{color:var(--lime);}
.site-footer .ftext{font-size:13.5px;line-height:1.95;color:rgba(215,228,220,.72);}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.14);
  padding:18px 48px 22px;max-width:1160px;margin-left:auto;margin-right:auto;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(215,228,220,.58);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;width:44px;height:44px;border-radius:999px;
  background:var(--brand);color:#fff;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;z-index:50;
  box-shadow:0 8px 22px rgba(16,69,58,.28);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--brand-deep);}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .post-layout{grid-template-columns:minmax(0,1fr) 220px;gap:40px;}
  .toc{display:block;}
}
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidebar:216px;}
  .sidebar{padding:20px 14px;}
  .card-grid{gap:20px;}
}
@media (max-width:1023px){
  :root{--sidebar:0px;}
  .sidebar{
    top:0;left:0;right:0;bottom:auto;width:100%;height:60px;
    flex-direction:row;align-items:center;justify-content:space-between;
    padding:0 18px;border-right:0;border-bottom:1px solid var(--line);
    overflow:visible;
  }
  .burger{display:inline-flex;}
  .nav-wrap{
    position:fixed;top:0;left:0;bottom:0;width:84%;max-width:330px;
    background:var(--paper);padding:78px 18px 24px;
    transform:translateX(-104%);
    transition:transform .26s var(--ease);
    box-shadow:var(--sh-3);
    overflow-y:auto;z-index:58;
  }
  body.nav-open .nav-wrap{transform:translateX(0);}
  .nav-item{min-height:48px;font-size:15px;}
  .main{margin-left:0;padding-top:60px;}
  .container,.site-footer .footer-grid{padding-left:32px;padding-right:32px;}
  .footer-bottom{padding-left:32px;padding-right:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .consult{padding:32px 28px;border-radius:var(--r-card);}
  .consult-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container,.site-footer .footer-grid{padding-left:20px;padding-right:20px;}
  .footer-bottom{padding-left:20px;padding-right:20px;}
  .article-head h1{font-size:27px;line-height:1.42;}
  .head-hero{aspect-ratio:16/9;border-radius:var(--r-card);}
  .panel{padding:22px 18px;border-radius:14px;}
  .prose{font-size:16px;}
  .prose h2{font-size:21px;margin-top:32px;}
  .prose h3{font-size:18px;}
  .section{padding:48px 0 0;}
  .card-grid{grid-template-columns:1fr;}
  .consult{margin-top:52px;padding:26px 20px;}
  .form-card{padding:18px;}
  .field-row{grid-template-columns:1fr;gap:0;}
  .notice{padding:16px 16px;gap:12px;}
  .site-footer{margin-top:56px;padding-top:40px;}
  .site-footer .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .to-top{right:16px;bottom:16px;}
  .btn-block-mobile{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition:none!important;animation:none!important;}
}

/* roulang page: category1 */
:root{
  --brand:#10453A;
  --brand-deep:#0A2E27;
  --accent:#FF7A29;
  --accent-deep:#E86A1C;
  --lime:#CBEF6A;
  --paper:#F5F6F1;
  --card:#FFFFFF;
  --line:#DDE4DA;
  --ink:#16211C;
  --ink-2:#4E5D56;
  --ink-3:#7B8880;
  --ok:#1F7A54;
  --err:#C8402F;
  --warn:#B4780E;
  --r-btn:10px;
  --r-sm:8px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(22,33,28,.05);
  --sh-2:0 10px 28px rgba(16,69,58,.10);
  --sh-3:0 12px 40px rgba(0,0,0,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms;
  --side:252px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t) var(--ease)}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(203,239,106,.7);color:var(--brand-deep)}

/* ============ 左侧 App Shell ============ */
.topbar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--side);
  background:var(--paper);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:22px;
  padding:26px 18px 20px;
  z-index:50;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;flex:0 0 auto;
  border-radius:11px;
  background:var(--brand);
  color:#fff;
  display:grid;place-items:center;
  font-size:18px;font-weight:800;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.28}
.brand-text .b1{font-size:14px;font-weight:800;letter-spacing:.01em}
.brand-text .b2{font-size:12.5px;font-weight:600;color:var(--ink-2)}
.brand-rule{height:1px;background:var(--line);margin:2px 0}
.site-nav{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;
  display:flex;align-items:center;
  min-height:44px;
  padding:10px 12px 10px 15px;
  border-radius:10px;
  color:var(--ink-2);
  font-size:14.5px;
  font-weight:600;
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:3px;
  background:transparent;transition:background var(--t) var(--ease);
}
.nav-item:hover{background:rgba(16,69,58,.06);color:var(--brand)}
.nav-item.active{background:rgba(16,69,58,.08);color:var(--brand);font-weight:700}
.nav-item.active::before{background:var(--accent)}
.side-card{
  margin-top:auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px;
  box-shadow:var(--sh-1);
}
.side-card p{font-size:13px;line-height:1.8;color:var(--ink-2);margin-bottom:12px}
.side-card .btn{width:100%;height:42px;font-size:14px}
.side-copy{font-size:12px;color:var(--ink-3);line-height:1.7}
.burger{display:none}
.overlay{display:none}

/* ============ 页面骨架 ============ */
.page{margin-left:var(--side);padding:44px 0 0;min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}
.container{max-width:1160px;margin:0 auto;padding:0 48px;width:100%}
.sec{padding:52px 0}
.sec-tight{padding:32px 0}

/* ============ 面包屑 & 页头 ============ */
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:#B9C4BB}
.crumb .cur{color:var(--ink-2)}
.page-head{padding:4px 0 0}
.page-head h1{font-size:44px;line-height:1.24;letter-spacing:-.02em}
.page-head h1 .kw{color:var(--brand)}
.page-head h1 .sub{color:var(--ink-2);font-weight:700}
.lead{font-size:18px;line-height:1.85;color:var(--ink-2);margin-top:18px;max-width:780px}
.quick-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;
  margin-top:28px;padding:12px 18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--sh-1);
}
.quick-title{font-size:12.5px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;margin-right:4px}
.quick-bar a{
  font-size:14px;font-weight:600;
  padding:6px 13px;border-radius:8px;
  background:rgba(16,69,58,.06);
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
}
.quick-bar a:hover{background:rgba(255,122,41,.14);color:var(--accent-deep)}

/* ============ 板块标题 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.sec-num{display:block;font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--ink-3);margin-bottom:8px;font-variant-numeric:tabular-nums}
.sec-title{position:relative;font-size:30px;line-height:1.32;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:3px;background:var(--brand)}
.sec-sub{font-size:14.5px;color:var(--ink-2);max-width:44ch;line-height:1.85}

/* ============ 卡片与网格 ============ */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(16,69,58,.28)}
.card h3{font-size:17.5px;line-height:1.5;margin-bottom:8px}
.card p{font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.card-ico{
  width:40px;height:40px;border-radius:11px;
  background:rgba(16,69,58,.08);
  color:var(--brand);
  display:grid;place-items:center;
  margin-bottom:14px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;
  padding:5px 10px;border-radius:6px;
  background:rgba(16,69,58,.08);
  color:var(--brand);
  letter-spacing:.02em;
}
.badge-accent{background:rgba(255,122,41,.14);color:var(--accent-deep)}
.badge-lime{background:rgba(203,239,106,.42);color:var(--brand)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),transform var(--t) var(--ease),border-color var(--t) var(--ease);
}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(16,69,58,.06);color:var(--brand)}
.btn-ghost:active{background:rgba(16,69,58,.12)}

/* ============ 步骤列表 ============ */
.steps{display:flex;flex-direction:column;gap:16px}
.step{
  display:grid;grid-template-columns:58px minmax(0,1fr);gap:20px;align-items:start;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(16,69,58,.28)}
.step-dot{
  width:46px;height:46px;border-radius:999px;
  display:grid;place-items:center;
  background:rgba(16,69,58,.08);
  border:1px solid rgba(16,69,58,.16);
  color:var(--brand);
  font-size:15px;font-weight:800;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.step-body h3{font-size:18px;line-height:1.5;margin-bottom:6px}
.step-body p{font-size:15px;line-height:1.88;color:var(--ink-2)}
.step-tag{display:inline-block;margin-top:10px;font-size:12.5px;font-weight:700;color:var(--brand);background:rgba(203,239,106,.4);padding:3px 9px;border-radius:6px}

/* ============ 图文块 ============ */
.figure-block{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center}
.img-wrap{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:rgba(203,239,106,.28);
  box-shadow:var(--sh-2);
}
.img-wrap::after{
  content:"华";position:absolute;inset:0;
  display:grid;place-items:center;
  font-size:44px;font-weight:800;color:rgba(16,69,58,.3);
}
.img-wrap img{position:relative;z-index:1;width:100%;aspect-ratio:16/10;object-fit:cover}
.figure-body h2{font-size:26px;line-height:1.4;margin-bottom:14px}
.figure-body p{font-size:15.5px;line-height:1.9;color:var(--ink-2)}
.checks{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.check-dot{
  flex:0 0 auto;width:22px;height:22px;margin-top:3px;
  border-radius:999px;background:var(--accent);color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:800;
}

/* ============ 常见卡点 ============ */
.tip{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.tip:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(16,69,58,.28)}
.tip-num{
  width:34px;height:34px;border-radius:9px;
  background:rgba(255,122,41,.14);color:var(--accent-deep);
  display:grid;place-items:center;font-weight:800;font-size:13px;
  font-variant-numeric:tabular-nums;
}
.tip h3{font-size:17px;margin-bottom:6px}
.tip p{font-size:14.5px;line-height:1.85;color:var(--ink-2)}

/* ============ 相关分类 ============ */
.related{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px 22px;
  box-shadow:var(--sh-1);
}
.related-title{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--ink-3);margin-right:6px}
.related a{
  font-size:14px;font-weight:600;
  padding:8px 14px;border-radius:9px;
  border:1px solid var(--line);
  transition:background var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.related a:hover{background:rgba(16,69,58,.06);border-color:rgba(16,69,58,.28);color:var(--brand)}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand);
  border-radius:var(--r-lg);
  padding:44px 44px;
  display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;
  color:#fff;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:999px;background:rgba(203,239,106,.16);
}
.cta-band h2{font-size:26px;line-height:1.4;margin-bottom:10px;color:#fff;position:relative}
.cta-band p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.78);position:relative;max-width:56ch}
.cta-band .btn{position:relative}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#CFDDD6;padding:56px 0 0;margin-top:20px}
.footer-grid{
  max-width:1160px;margin:0 auto;
  padding:0 48px 40px;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;
}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.site-footer .brand-text .b1{color:#fff}
.site-footer .brand-text .b2{color:rgba(255,255,255,.66)}
.footer-brand p{font-size:13.5px;line-height:1.95;color:rgba(255,255,255,.62);margin-top:16px;max-width:40ch}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:700;letter-spacing:.02em}
.footer-col ul li{margin-bottom:9px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--lime);text-decoration:underline;text-underline-offset:3px}
.ftext{font-size:13.5px;line-height:1.95;color:rgba(255,255,255,.62)}
.footer-bottom{
  max-width:1160px;margin:0 auto;
  padding:20px 48px 28px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.55);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:26px;bottom:26px;
  width:44px;height:44px;border-radius:999px;
  background:var(--brand);color:#fff;border:0;cursor:pointer;
  display:grid;place-items:center;
  box-shadow:var(--sh-2);
  opacity:0;pointer-events:none;
  transition:opacity var(--t) var(--ease),transform var(--t) var(--ease),background var(--t) var(--ease);
  z-index:40;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--brand-deep);transform:translateY(-2px)}

/* ============ 断点 ============ */
@media (max-width:1279px){
  :root{--side:216px}
  .container{padding:0 32px}
  .footer-grid,.footer-bottom{padding-left:32px;padding-right:32px}
  .grid{gap:20px}
  .page-head h1{font-size:38px}
}

@media (max-width:1023px){
  .topbar{
    position:fixed;top:0;left:0;right:0;bottom:auto;
    width:100%;height:60px;
    flex-direction:row;align-items:center;justify-content:space-between;
    padding:0 18px;gap:0;
    border-right:0;border-bottom:1px solid var(--line);
    background:rgba(245,246,241,.96);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    overflow:visible;
  }
  .brand-mark{width:32px;height:32px;border-radius:9px;font-size:16px}
  .brand-text .b1{font-size:13px}
  .brand-text .b2{font-size:11px}
  .brand-rule,.side-card,.side-copy{display:none}
  .burger{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;
    border:1px solid var(--line);border-radius:10px;
    background:var(--card);color:var(--brand);cursor:pointer;
    transition:background var(--t) var(--ease),border-color var(--t) var(--ease);
  }
  .burger:hover{background:rgba(16,69,58,.06);border-color:rgba(16,69,58,.28)}
  .site-nav{
    position:fixed;top:0;left:0;
    width:84%;max-width:330px;height:100%;
    background:var(--card);
    padding:78px 18px 28px;
    flex-direction:column;gap:4px;
    transform:translateX(-102%);
    transition:transform .26s var(--ease);
    box-shadow:var(--sh-3);
    z-index:70;
    overflow-y:auto;
  }
  .site-nav.open{transform:translateX(0)}
  .nav-item{min-height:48px;font-size:15px}
  .overlay{
    display:block;position:fixed;inset:0;
    background:rgba(10,46,39,.55);
    opacity:0;pointer-events:none;
    transition:opacity .24s var(--ease);
    z-index:65;
  }
  .overlay.show{opacity:1;pointer-events:auto}
  .page{margin-left:0;padding-top:78px}
  .page-head h1{font-size:34px}
  .lead{font-size:16.5px}
  .sec{padding:42px 0}
  .sec-title{font-size:26px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .figure-block{grid-template-columns:1fr;gap:28px}
  .figure-body h2{font-size:23px}
  .cta-band{grid-template-columns:1fr;padding:34px 28px;gap:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .to-top{right:18px;bottom:18px}
}

@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .page{padding-top:72px}
  .page-head h1{font-size:27px;line-height:1.32}
  .lead{font-size:15.5px;margin-top:14px}
  .quick-bar{padding:12px 14px}
  .quick-bar a{font-size:13.5px;padding:6px 11px}
  .sec{padding:32px 0}
  .sec-title{font-size:22px;padding-left:13px}
  .sec-sub{font-size:14px}
  .grid-3,.grid-2{grid-template-columns:1fr;gap:16px}
  .card{padding:18px}
  .step{grid-template-columns:40px minmax(0,1fr);gap:14px;padding:18px 16px}
  .step-dot{width:36px;height:36px;font-size:13px}
  .step-body h3{font-size:16.5px}
  .step-body p{font-size:14.5px}
  .tip{grid-template-columns:auto minmax(0,1fr);gap:12px;padding:18px 16px}
  .tip h3{font-size:16px}
  .btn{width:100%}
  .quick-bar .btn{width:auto}
  .cta-band{padding:28px 20px;border-radius:16px}
  .cta-band h2{font-size:21px}
  .related{padding:16px}
  .related a{font-size:13.5px;padding:8px 12px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-left:20px;padding-right:20px;padding-bottom:32px}
  .footer-bottom{padding-left:20px;padding-right:20px;flex-direction:column;gap:6px}
  .to-top{right:14px;bottom:14px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --brand:#10453A;
  --brand-deep:#0A2E27;
  --accent:#FF7A29;
  --accent-deep:#E86A1C;
  --lime:#CBEF6A;
  --paper:#F5F6F1;
  --card:#FFFFFF;
  --line:#DDE4DA;
  --ink:#16211C;
  --ink-2:#4E5D56;
  --ink-3:#7B8880;
  --ok:#1F7A54;
  --err:#C8402F;
  --warn:#B4780E;
  --r-btn:10px;
  --r-sm:8px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(22,33,28,.05);
  --sh-2:0 10px 28px rgba(16,69,58,.10);
  --sh-3:0 12px 40px rgba(0,0,0,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-w:252px;
  --maxw:1100px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.32;letter-spacing:-.01em}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--accent-deep);text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;display:block;border-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ===== 布局骨架 ===== */
.sidenav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--paper);border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:18px;
  padding:26px 18px 18px;z-index:80;overflow-y:auto;
}
.main{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.container{max-width:var(--maxw);margin:0 auto;padding:0 48px;width:100%}

/* ===== 品牌 ===== */
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:18px;flex:0 0 auto;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.b1{font-weight:800;font-size:15px;letter-spacing:-.01em;white-space:nowrap}
.b2{font-size:11.5px;color:var(--ink-3);letter-spacing:.14em;white-space:nowrap}

/* ===== 侧边导航 ===== */
.nav-label{font-size:11.5px;letter-spacing:.16em;color:var(--ink-3);padding:0 12px}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;
  padding:0 12px 0 14px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav-item:hover{background:rgba(16,69,58,.06);color:var(--brand);text-decoration:none}
.nav-item.active{background:rgba(16,69,58,.08);border-left-color:var(--accent);color:var(--brand);font-weight:800}
.nav-sep{height:1px;background:var(--line);margin:4px 0}
.nav-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh-1);
}
.nav-card p{font-size:13px;line-height:1.75;color:var(--ink-2);margin:0 0 12px}
.nav-card .btn{width:100%;height:40px;font-size:14px;padding:0 12px}
.nav-copy{font-size:12px;color:var(--ink-3);line-height:1.7;margin-top:auto;padding:0 4px}

/* ===== 移动端顶栏 ===== */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:rgba(245,246,241,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);z-index:90;
}
.burger{
  width:44px;height:44px;display:grid;place-items:center;border-radius:10px;
  color:var(--brand);transition:background .18s var(--ease);
}
.burger:hover{background:rgba(16,69,58,.08)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(10,46,39,.55);
  opacity:0;pointer-events:none;transition:opacity .22s var(--ease);z-index:70;
}
.nav-overlay.show{opacity:1;pointer-events:auto}

/* ===== 通用按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(255,122,41,.22)}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border:1.5px solid var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(16,69,58,.06);color:var(--brand)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}

/* ===== 首屏 ===== */
.page-hero{padding:56px 0 0}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--ink-3);
  background:rgba(16,69,58,.06);border-radius:999px;padding:5px 12px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
h1{font-size:clamp(28px,3.1vw,42px);line-height:1.28;letter-spacing:-.015em}
.lede{font-size:17px;line-height:1.85;color:var(--ink-2);margin-top:18px;max-width:46ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--card);border:1px solid var(--line);border-radius:999px;padding:5px 12px;
}
.chip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 2px rgba(203,239,106,.35)}
.hero-media{
  position:relative;margin:0;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:4/3;background:rgba(203,239,106,.28);box-shadow:var(--sh-2);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(200deg,rgba(16,69,58,0) 42%,rgba(10,46,39,.55) 100%);
}
.media-stat{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.94);border-radius:12px;padding:12px 16px;
  box-shadow:var(--sh-2);min-width:150px;
}
.media-stat b{display:block;font-size:24px;line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.media-stat span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:4px}

/* ===== 快捷入口条 ===== */
.quick-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;padding:14px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.quick-label{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.04em;padding:0 6px}
.quick-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  background:rgba(16,69,58,.06);border-radius:999px;padding:7px 14px;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.quick-link:hover{background:rgba(255,122,41,.14);color:var(--accent-deep);text-decoration:none}

/* ===== 板块 ===== */
.section{padding:76px 0 0}
.section-head{margin-bottom:30px;max-width:640px}
.sec-num{
  display:block;font-size:12.5px;font-weight:700;letter-spacing:.22em;
  color:var(--ink-3);font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.sec-num::before{content:"";display:inline-block;width:20px;height:2px;background:var(--accent);vertical-align:middle;margin-right:10px;border-radius:2px}
h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;position:relative;padding-left:16px}
h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;background:var(--brand)}
.sec-desc{font-size:15.5px;color:var(--ink-2);margin-top:14px;line-height:1.85}

/* ===== 时间线 ===== */
.timeline{position:relative;margin-top:8px;padding-left:64px}
.timeline::before{
  content:"";position:absolute;left:19px;top:16px;bottom:16px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(16,69,58,.10) 100%);
}
.tl-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 26px;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.tl-item + .tl-item{margin-top:18px}
.tl-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(16,69,58,.28)}
.tl-item::before{
  content:attr(data-num);position:absolute;left:-64px;top:22px;
  width:40px;height:40px;border-radius:999px;background:var(--card);
  border:2px solid var(--brand);color:var(--brand);
  display:grid;place-items:center;font-size:14px;font-weight:800;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px}
.tl-stage{
  font-size:12.5px;font-weight:700;color:var(--brand);
  background:rgba(203,239,106,.34);border-radius:var(--r-sm);padding:3px 10px;
}
.tl-time{font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.tl-item h3{font-size:19px;line-height:1.5;margin-bottom:8px}
.tl-item p{font-size:15px;line-height:1.85;color:var(--ink-2);margin:0}

/* ===== 卡点卡片 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(16,69,58,.28)}
.icon-box{
  width:40px;height:40px;border-radius:12px;background:rgba(16,69,58,.08);
  display:grid;place-items:center;color:var(--brand);margin-bottom:16px;
}
.info-card h3{font-size:17.5px;line-height:1.5;margin-bottom:8px}
.info-card p{font-size:14.5px;line-height:1.8;color:var(--ink-2);margin:0}
.card-foot{margin-top:16px;font-size:14px;font-weight:600;color:var(--brand)}
.card-foot:hover{color:var(--accent-deep);text-decoration:none}
.card-foot::after{content:" →";transition:margin .18s var(--ease)}
.card-foot:hover::after{margin-left:3px}

/* ===== 提示块 ===== */
.notice{
  display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:flex-start;
  background:rgba(203,239,106,.20);border:1px solid rgba(16,69,58,.16);
  border-left:4px solid var(--brand);border-radius:var(--r-card);
  padding:24px 26px;margin-top:34px;
}
.notice-ic{
  width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:16px;flex:0 0 auto;
}
.notice h3{font-size:17px;margin-bottom:8px}
.notice p{font-size:14.5px;line-height:1.85;color:var(--ink-2);margin:0}

/* ===== CTA ===== */
.cta-band{
  margin-top:64px;background:var(--brand);color:#fff;border-radius:var(--r-lg);
  padding:40px 44px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;
  align-items:center;box-shadow:0 18px 40px rgba(10,46,39,.20);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.2vw,26px);padding-left:0}
.cta-band h2::before{display:none}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.85;margin:10px 0 0;max-width:56ch}
.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:rgba(255,255,255,.12);color:#fff}

/* ===== FAQ ===== */
.faq-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);margin-top:8px;
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 24px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.faq-q:hover{background:rgba(16,69,58,.04);color:var(--brand)}
.faq-ic{position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform .22s var(--ease)}
.faq-ic::before,.faq-ic::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:opacity .22s var(--ease),background .18s var(--ease);
}
.faq-ic::before{left:0;top:8px;width:18px;height:2px}
.faq-ic::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-ic::after{opacity:0}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-item.is-open .faq-a{max-height:320px}
.faq-a p{
  margin:0;padding:0 24px 20px 24px;font-size:15px;line-height:1.9;color:var(--ink-2);
}

/* ===== 相关分类 ===== */
.rel-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.rel-link{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--card);border:1px solid var(--line);border-radius:999px;
  padding:10px 18px;font-size:14.5px;font-weight:600;color:var(--brand);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease);
}
.rel-link::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 2px rgba(203,239,106,.3)}
.rel-link:hover{transform:translateY(-2px);border-color:rgba(16,69,58,.28);box-shadow:var(--sh-2);color:var(--accent-deep);text-decoration:none}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-deep);color:#D8E4DC;margin-top:76px;padding:56px 0 0}
.footer-grid{
  max-width:var(--maxw);margin:0 auto;padding:0 48px;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
}
.site-footer .brand .b1{color:#fff}
.site-footer .brand .b2{color:rgba(216,228,220,.68)}
.site-footer .brand-mark{background:var(--accent);color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(216,228,220,.76);margin:16px 0 0;max-width:36ch}
.footer-col h4{font-size:14px;color:#fff;letter-spacing:.03em;margin-bottom:14px}
.footer-col ul li + li{margin-top:10px}
.footer-col a{font-size:14px;color:rgba(216,228,220,.82)}
.footer-col a:hover{color:var(--lime);text-decoration:none}
.ftext{font-size:14px;line-height:1.9;color:rgba(216,228,220,.76);margin:0}
.footer-bottom{
  max-width:var(--maxw);margin:40px auto 0;padding:18px 48px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(216,228,220,.58);
}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--brand);color:#fff;display:grid;place-items:center;
  box-shadow:var(--sh-2);opacity:0;pointer-events:none;z-index:65;
  transition:opacity .22s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--accent);transform:translateY(-2px)}

/* ===== 断点 ===== */
@media (max-width:1279px){
  :root{--nav-w:216px}
  .container{padding:0 36px}
  .footer-grid,.footer-bottom{padding-left:36px;padding-right:36px}
  .hero-grid{gap:32px}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .sidenav{
    transform:translateX(-100%);width:84%;max-width:322px;--nav-w:0;
    box-shadow:var(--sh-3);padding-top:22px;
    transition:transform .26s var(--ease);
  }
  .sidenav.open{transform:translateX(0)}
  .main{margin-left:0;padding-top:60px}
  .container{padding:0 32px}
  .footer-grid,.footer-bottom{padding-left:32px;padding-right:32px}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-media{aspect-ratio:16/10}
  .page-hero{padding-top:40px}
  .section{padding-top:64px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:32px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .footer-grid,.footer-bottom{padding-left:20px;padding-right:20px}
  .page-hero{padding-top:32px}
  h1{font-size:30px;line-height:1.32}
  .lede{font-size:16px;margin-top:14px}
  .hero-actions .btn{flex:1 1 100%}
  .section{padding-top:56px}
  h2{font-size:24px;line-height:1.38}
  .timeline{padding-left:44px}
  .timeline::before{left:11px}
  .tl-item{padding:18px 18px}
  .tl-item::before{left:-44px;width:32px;height:32px;font-size:12.5px;top:18px;border-width:2px}
  .card-grid{grid-template-columns:1fr}
  .quick-bar{padding:12px}
  .quick-link{font-size:13.5px}
  .notice{grid-template-columns:1fr;gap:12px;padding:20px}
  .faq-q{padding:15px 18px;font-size:15px;min-height:52px}
  .faq-a p{padding:0 18px 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:28px 22px}
  .to-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .tl-item:hover,.info-card:hover,.rel-link:hover,.btn:hover{transform:none !important}
}

/* roulang page: category2 */
:root{
  --brand:#10453A;
  --brand-deep:#0A2E27;
  --accent:#FF7A29;
  --accent-deep:#E86A1C;
  --lime:#CBEF6A;
  --paper:#F5F6F1;
  --card:#FFFFFF;
  --line:#DDE4DA;
  --ink:#16211C;
  --ink-2:#4E5D56;
  --ink-3:#7B8880;
  --ok:#1F7A54;
  --err:#C8402F;
  --warn:#B4780E;
  --r-btn:10px;
  --r-sm:8px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(22,33,28,.05);
  --sh-2:0 10px 28px rgba(16,69,58,.10);
  --sh-3:0 12px 40px rgba(0,0,0,.18);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --sidebar:252px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;line-height:1.9;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
dl,dd,dt{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:12px;top:12px;z-index:300;background:#fff;padding:10px 16px;border-radius:8px;box-shadow:var(--sh-2)}

/* ============ 容器 ============ */
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 48px}

/* ============ 顶部栏 / 品牌 ============ */
.topbar{
  position:fixed;top:0;left:0;width:var(--sidebar);height:76px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:0 18px;background:var(--paper);border-right:1px solid var(--line);z-index:70;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.brand:hover{color:var(--ink);text-decoration:none}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:17px;font-weight:800;flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text .b1{font-size:14.5px;font-weight:800;letter-spacing:-.02em;color:inherit}
.brand-text .b2{font-size:11.5px;font-weight:600;letter-spacing:.14em;color:var(--ink-2)}
.burger{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand);display:none;align-items:center;justify-content:center;
  transition:background var(--t),border-color var(--t);
}
.burger:hover{background:rgba(16,69,58,.06);border-color:rgba(16,69,58,.28)}

/* ============ 侧栏导航 ============ */
.nav-drawer{
  position:fixed;top:76px;bottom:0;left:0;width:var(--sidebar);
  padding:14px 16px 28px;background:var(--paper);
  border-right:1px solid var(--line);overflow-y:auto;z-index:65;
}
.nav-label{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--ink-3);padding:0 10px 10px}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-list a{
  display:flex;align-items:center;min-height:44px;padding:0 12px;
  border-left:3px solid transparent;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--ink-2);text-decoration:none;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.nav-list a:hover{background:rgba(16,69,58,.06);color:var(--brand);text-decoration:none}
.nav-list a.is-active{
  background:rgba(16,69,58,.08);border-left-color:var(--accent);
  color:var(--brand);font-weight:800;
}
.side-card{
  margin-top:22px;padding:16px;border:1px solid var(--line);border-radius:14px;
  background:#fff;box-shadow:var(--sh-1);
}
.side-card p{font-size:13px;line-height:1.75;color:var(--ink-2);margin-bottom:14px}
.side-card .btn{width:100%;height:42px;font-size:14px}
.side-copy{margin-top:18px;padding:0 10px;font-size:12px;color:var(--ink-3);line-height:1.7}
.scrim{display:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 24px;border-radius:var(--r-btn);border:0;
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  transition:transform var(--t),background var(--t),color var(--t),box-shadow var(--t),border-color var(--t);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn-ghost:hover{background:rgba(16,69,58,.06);color:var(--brand);text-decoration:none}
.btn-block{width:100%}

/* ============ 主内容包装 ============ */
.page-wrap{margin-left:var(--sidebar)}

/* ============ 页头 ============ */
.page-head{padding:52px 0 6px;position:relative;overflow:hidden}
.page-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(45deg,rgba(16,69,58,.035) 0 2px,transparent 2px 12px);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:22px;position:relative}
.crumbs a{color:var(--ink-3);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:#BCC7BF}
.crumbs .cur{color:var(--ink-2)}
.head-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;position:relative}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--brand);
  background:rgba(16,69,58,.08);border-radius:999px;padding:6px 14px;
}
h1{font-size:clamp(30px,3.4vw,44px);line-height:1.28;letter-spacing:-.02em;margin-bottom:16px}
.lede{font-size:18px;line-height:1.78;color:var(--ink-2);max-width:34em}
.quick-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.quick-links a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--brand);text-decoration:none;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t),color var(--t);
}
.quick-links a:hover{
  border-color:rgba(16,69,58,.28);box-shadow:var(--sh-2);
  transform:translateY(-1px);color:var(--brand);text-decoration:none;
}
.head-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background:linear-gradient(140deg,#E7EFE4,#F5F6F1);
}
.head-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.head-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(200deg,rgba(10,46,39,0) 42%,rgba(10,46,39,.74) 100%);
}
.media-tag{
  position:absolute;left:18px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;color:#fff;
}
.media-tag .dot{
  width:8px;height:8px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 4px rgba(203,239,106,.22);
}

/* ============ 板块通用 ============ */
.section{padding:72px 0}
.section-head{max-width:740px;margin-bottom:34px}
.section-head .num{
  display:block;margin-bottom:10px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--accent);
}
.section-head h2{
  font-size:clamp(24px,2.6vw,30px);line-height:1.4;
  padding-left:14px;border-left:4px solid var(--brand);
}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.85}

/* ============ 指标带 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:rgba(203,239,106,.22);border:1px solid rgba(16,69,58,.12);
  border-radius:var(--r-card);padding:30px 28px;
  position:relative;overflow:hidden;
}
.metrics::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
  background:repeating-linear-gradient(135deg,rgba(16,69,58,.28) 0 3px,transparent 3px 9px);
}
.metric .v{
  font-size:clamp(30px,3.4vw,46px);font-weight:800;line-height:1.1;
  letter-spacing:-.02em;color:var(--brand);font-variant-numeric:tabular-nums;
}
.metric .l{font-size:14px;color:var(--ink-2);margin-top:8px}

/* ============ 双栏：要点清单 + 侧栏信息卡 ============ */
.split{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:28px;align-items:start}
.checklist-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--sh-1);
}
.checklist li{
  display:grid;grid-template-columns:32px 1fr;gap:14px;
  padding:19px 0;border-bottom:1px dashed var(--line);
}
.checklist li:first-child{padding-top:0}
.checklist li:last-child{border-bottom:0;padding-bottom:0}
.check-icon{
  width:26px;height:26px;border-radius:999px;margin-top:4px;
  background:rgba(255,122,41,.14);color:var(--accent-deep);
  display:grid;place-items:center;font-size:13px;font-weight:800;
}
.checklist h3{font-size:16.5px;margin-bottom:6px;line-height:1.55}
.checklist p{font-size:14.5px;line-height:1.82;color:var(--ink-2)}

.info-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.info-card h3{font-size:17px;line-height:1.5}
.info-card .sub{font-size:13px;color:var(--ink-3);margin:4px 0 14px}
.rows div{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;
}
.rows div:last-child{border-bottom:0;padding-bottom:0}
.rows dt{color:var(--ink-3);flex:none}
.rows dd{font-weight:700;color:var(--ink);text-align:right;font-variant-numeric:tabular-nums}
.info-card .btn{margin-top:18px;width:100%}
.info-card.tip{background:rgba(203,239,106,.24);border-color:rgba(16,69,58,.16)}
.info-card.tip h3{margin-bottom:10px}
.info-card.tip p{font-size:14px;line-height:1.85;color:#2C463B}

/* ============ 卡片网格 ============ */
.device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(16,69,58,.28)}
.card .ico{
  width:40px;height:40px;border-radius:12px;margin-bottom:16px;
  background:rgba(16,69,58,.08);color:var(--brand);
  display:grid;place-items:center;
}
.card h3{font-size:18px;margin-bottom:8px}
.card p{font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.card .more{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14px;font-weight:600;color:var(--brand);text-decoration:none;
}
.card .more svg{transition:transform var(--t)}
.card:hover .more svg{transform:translateX(3px)}

/* ============ 步骤 ============ */
.steps{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:8px 30px;box-shadow:var(--sh-1);
}
.step{display:grid;grid-template-columns:44px 1fr;gap:18px;padding:24px 0;border-bottom:1px solid var(--line)}
.step:last-child{border-bottom:0}
.step-n{
  width:38px;height:38px;border-radius:999px;
  border:1.5px solid rgba(16,69,58,.22);background:rgba(16,69,58,.05);
  color:var(--brand);display:grid;place-items:center;
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
}
.step h3{font-size:16.5px;line-height:1.55;margin-bottom:6px}
.step p{font-size:14.5px;line-height:1.82;color:var(--ink-2)}

/* ============ 图文区 ============ */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}
.feature-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);background:#E7EFE4;
}
.feature-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.feature-body h2{font-size:clamp(23px,2.4vw,28px);line-height:1.42;margin-bottom:16px;padding-left:14px;border-left:4px solid var(--brand)}
.feature-body p{font-size:15.5px;line-height:1.9;color:var(--ink-2);margin-bottom:14px}
.feature-list{display:flex;flex-direction:column;gap:12px;margin-top:20px}
.feature-list li{
  display:grid;grid-template-columns:22px 1fr;gap:10px;
  font-size:14.8px;line-height:1.8;color:var(--ink-2);
}
.feature-list .tick{color:var(--accent);font-weight:800;line-height:1.6}

/* ============ FAQ ============ */
.faq{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;border:0;background:transparent;
  text-align:left;font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
  transition:background var(--t),color var(--t);
}
.faq-q:hover{background:rgba(16,69,58,.04);color:var(--brand)}
.faq-q .chev{flex:none;color:var(--brand);transition:transform 220ms ease}
.faq-item.open .faq-q .chev{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease}
.faq-a .inner{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.faq-item.open .faq-a{max-height:520px}

/* ============ CTA 表单 ============ */
.cta-wrap{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#10453A 0%,#0A2E27 100%);
  border-radius:24px;padding:44px;
  display:grid;grid-template-columns:.88fr 1.12fr;gap:40px;align-items:start;
}
.cta-wrap::before{
  content:"";position:absolute;right:-120px;top:-140px;width:340px;height:340px;
  border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(203,239,106,.18),transparent 70%);
}
.cta-copy{position:relative}
.cta-copy h2{font-size:clamp(24px,2.6vw,30px);line-height:1.42;color:#fff;margin-bottom:14px}
.cta-copy p{font-size:15.5px;line-height:1.88;color:#C7D8CF}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:grid;grid-template-columns:20px 1fr;gap:10px;font-size:14.5px;line-height:1.75;color:#D7E4DB}
.cta-points .tick{color:var(--lime);font-weight:800}
.form-card{
  position:relative;background:#fff;border-radius:20px;padding:28px;
  box-shadow:0 12px 40px rgba(0,0,0,.18);
}
.form-note{
  display:none;margin-bottom:16px;padding:10px 14px;border-radius:10px;
  background:rgba(31,122,84,.1);border:1px solid rgba(31,122,84,.25);
  color:var(--ok);font-size:13.5px;line-height:1.7;
}
.form-note.show{display:block}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-grid .full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-family:inherit;font-size:15px;line-height:1.6;
  transition:border-color var(--t),box-shadow var(--t);
}
.field select{appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%234E5D56' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.field textarea{height:auto;min-height:106px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(16,69,58,.12);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:var(--ink-2);margin-top:4px}
.check-line input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex:none}
.form-card .btn{margin-top:20px}

/* ============ 相关分类 ============ */
.related-box{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 16px;
}
.related-box h2{font-size:16px;line-height:1.5;margin-right:6px;border:0;padding:0}
.related-box a{
  display:inline-flex;align-items:center;height:36px;padding:0 14px;
  border-radius:999px;background:var(--paper);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--brand);text-decoration:none;
  transition:background var(--t),border-color var(--t),color var(--t);
}
.related-box a:hover{background:rgba(16,69,58,.06);border-color:rgba(16,69,58,.28);color:var(--brand);text-decoration:none}

/* ============ 页脚 ============ */
.site-footer{margin-top:76px;background:var(--brand-deep);color:#C7D8CF;padding:56px 0 0}
.footer-grid{
  max-width:1160px;margin:0 auto;padding:0 48px;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
}
.footer-brand .brand{color:#fff;text-decoration:none}
.footer-brand .brand:hover{color:#fff;text-decoration:none}
.footer-brand .brand-mark{background:var(--accent);color:#fff}
.footer-brand .brand-text .b1{color:#fff}
.footer-brand .brand-text .b2{color:#9FB6AB}
.footer-brand p{margin-top:16px;max-width:30em;font-size:14px;line-height:1.88;color:#A9BFB4}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.04em;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:#A9BFB4;text-decoration:none;transition:color var(--t)}
.footer-col ul a:hover{color:#fff;text-decoration:none}
.ftext{font-size:14px;line-height:1.9;color:#A9BFB4}
.footer-bottom{
  max-width:1160px;margin:40px auto 0;padding:18px 48px 26px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:#8FA79B;
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;
  border-radius:50%;border:0;background:var(--brand);color:#fff;
  display:grid;place-items:center;box-shadow:var(--sh-2);z-index:80;
  opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t),transform var(--t),background var(--t);
}
.to-top.on{opacity:1;visibility:visible}
.to-top:hover{background:var(--brand-deep);transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1279.98px){
  .container{padding:0 32px}
  .footer-grid{padding:0 32px}
  .footer-bottom{padding:18px 32px 26px}
}
@media (min-width:1024px) and (max-width:1279.98px){
  :root{--sidebar:216px}
  .brand-text .b1{font-size:13.5px}
  .head-grid{gap:32px}
}
@media (max-width:1023.98px){
  .topbar{
    width:100%;height:60px;padding:0 16px;background:#fff;
    border-right:0;border-bottom:1px solid var(--line);
  }
  .burger{display:inline-flex}
  .nav-drawer{
    top:60px;width:84%;max-width:340px;padding:16px 14px 30px;
    transform:translateX(-100%);
    transition:transform .28s cubic-bezier(.2,.7,.3,1);
    box-shadow:0 12px 40px rgba(0,0,0,.18);z-index:95;
  }
  .nav-drawer.open{transform:none}
  .nav-list a{min-height:48px;font-size:15.5px}
  .page-wrap{margin-left:0;padding-top:60px}
  .scrim{
    display:block;position:fixed;inset:0;background:rgba(10,46,39,.55);
    z-index:90;opacity:0;pointer-events:none;transition:opacity .24s ease;
  }
  .scrim.on{opacity:1;pointer-events:auto}
  .head-grid{grid-template-columns:1fr;gap:30px}
  .head-media{order:-1}
  .split{grid-template-columns:1fr}
  .info-stack{position:static}
  .device-grid{grid-template-columns:repeat(2,1fr)}
  .feature{grid-template-columns:1fr;gap:28px}
  .cta-wrap{grid-template-columns:1fr;gap:28px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .section{padding:56px 0}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container{padding:0 20px}
  .footer-grid{padding:0 20px;grid-template-columns:1fr;gap:28px}
  .footer-bottom{padding:18px 20px 26px;flex-direction:column}
  .page-head{padding:36px 0 0}
  h1{font-size:30px;line-height:1.34}
  .lede{font-size:16.5px}
  .section{padding:44px 0}
  .metrics{grid-template-columns:repeat(2,1fr);gap:22px 16px;padding:22px 20px}
  .device-grid{grid-template-columns:1fr}
  .checklist-card{padding:22px}
  .steps{padding:4px 20px}
  .step{grid-template-columns:36px 1fr;gap:14px;padding:20px 0}
  .step-n{width:32px;height:32px;font-size:13px}
  .faq-q{font-size:15px;padding:14px 18px}
  .faq-a .inner{padding:0 18px 18px;font-size:14.5px}
  .cta-wrap{padding:24px 20px;border-radius:20px}
  .form-card{padding:20px}
  .form-grid{grid-template-columns:1fr}
  .related-box{padding:20px;gap:12px}
  .to-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .card:hover,.quick-links a:hover,.btn-primary:hover{transform:none}
}

/* roulang page: category4 */
:root{
  --brand:#10453A;
  --brand-deep:#0A2E27;
  --accent:#FF7A29;
  --accent-dark:#E86A1C;
  --lime:#CBEF6A;
  --paper:#F5F6F1;
  --card:#FFFFFF;
  --line:#DDE4DA;
  --ink:#16211C;
  --ink-2:#4E5D56;
  --ink-3:#7B8880;
  --ok:#1F7A54;
  --err:#C8402F;
  --warn:#B4780E;
  --r-sm:8px;
  --r-btn:10px;
  --r-md:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(22,33,28,.05);
  --sh-2:0 10px 28px rgba(16,69,58,.10);
  --sh-3:0 12px 40px rgba(0,0,0,.18);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --sidebar-w:252px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
svg{display:block}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

/* ---------- 布局骨架 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar-w);
  height:100vh;
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:26px 18px 18px;
  background:var(--paper);
  border-right:1px solid var(--line);
  overflow-y:auto;
  z-index:60;
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);
}
.layout{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.container{
  width:100%;
  max-width:1160px;
  margin:0 auto;
  padding:0 48px;
}
main{flex:1 0 auto}

/* ---------- 品牌 ---------- */
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--ink);
}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{
  width:40px;height:40px;flex:none;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--brand);
  color:#fff;
  font-weight:800;
  font-size:19px;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text .b1{font-size:15px;font-weight:800;letter-spacing:.2px}
.brand-text .b2{font-size:12.5px;color:var(--ink-3);letter-spacing:1.6px;font-weight:600}

/* ---------- 侧栏导航 ---------- */
.nav{margin-top:6px}
.nav-title{
  font-size:11.5px;
  letter-spacing:1.4px;
  color:var(--ink-3);
  font-weight:700;
  padding:0 12px 8px;
}
.nav ul{display:flex;flex-direction:column;gap:4px}
.nav a{
  display:flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 12px;
  border-radius:var(--r-btn);
  border-left:3px solid transparent;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-2);
  text-decoration:none;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.nav a:hover{background:rgba(16,69,58,.06);color:var(--brand);text-decoration:none}
.nav a.active{
  background:rgba(16,69,58,.08);
  border-left-color:var(--accent);
  color:var(--brand);
  font-weight:700;
}
.side-divider{height:1px;background:var(--line);margin:4px 0}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:16px;
  box-shadow:var(--sh-1);
}
.side-card p{font-size:13px;line-height:1.7;color:var(--ink-2);margin-bottom:12px}
.side-card .btn{width:100%;justify-content:center;font-size:14px}
.side-copy{
  margin-top:auto;
  font-size:12px;
  line-height:1.7;
  color:var(--ink-3);
  padding-top:14px;
  border-top:1px solid var(--line);
}

/* ---------- 顶部移动栏 ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  z-index:70;
}
.burger{
  width:44px;height:44px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--card);
  color:var(--brand);
  cursor:pointer;
  transition:background var(--t),border-color var(--t);
}
.burger:hover{background:rgba(16,69,58,.06);border-color:rgba(16,69,58,.28)}
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(10,46,39,.55);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t),visibility var(--t);
  z-index:65;
}
.drawer-overlay.show{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  text-decoration:none;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(16,69,58,.06);color:var(--brand)}
.btn-block{width:100%;justify-content:center}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand);
  text-decoration:none;
}
.link-arrow span.ar{transition:transform var(--t)}
.link-arrow:hover{color:var(--accent);text-decoration:none}
.link-arrow:hover span.ar{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  font-size:13px;
  color:var(--ink-3);
  padding:26px 0 18px;
}
.crumb a{color:var(--ink-3);text-decoration:none}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:#B9C3BA}
.crumb .cur{color:var(--ink-2);font-weight:600}

/* ---------- 页头 Hero ---------- */
.page-head{
  padding:14px 0 8px;
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:44px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(203,239,106,.42);
  color:var(--brand);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.4px;
  margin-bottom:16px;
}
.page-head h1{
  font-size:44px;
  line-height:1.24;
  letter-spacing:-.02em;
  font-weight:800;
  color:var(--brand-deep);
  margin-bottom:16px;
}
.page-head h1 em{font-style:normal;color:var(--accent)}
.lede{
  font-size:18px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:34em;
}
.head-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:4/3;
  background:linear-gradient(140deg,#E7EFE2,#CFE3D4);
  box-shadow:var(--sh-2);
}
.head-visual img{width:100%;height:100%;object-fit:cover}
.head-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(10,46,39,0) 35%,rgba(10,46,39,.72) 100%);
  pointer-events:none;
}
.head-visual .vis-note{
  position:absolute;
  left:20px;right:20px;bottom:18px;
  z-index:2;
  color:#fff;
  font-size:14.5px;
  font-weight:600;
  line-height:1.6;
  text-shadow:0 1px 6px rgba(0,0,0,.35);
}
.quickbar{
  margin-top:30px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  padding:16px 20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
}
.quickbar .qb-label{
  font-size:13px;
  font-weight:700;
  color:var(--ink-3);
  letter-spacing:.6px;
}
.quickbar a{
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  text-decoration:none;
  padding:6px 0;
  border-bottom:1px solid transparent;
  transition:color var(--t),border-color var(--t);
}
.quickbar a:hover{color:var(--accent);border-bottom-color:var(--accent);text-decoration:none}

/* ---------- 板块通用 ---------- */
.section{padding:78px 0 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:28px;
}
.sec-no{
  display:block;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:2px;
  color:var(--ink-3);
  margin-bottom:10px;
  font-variant-numeric:tabular-nums;
}
.sec-title{
  font-size:30px;
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--brand-deep);
  padding-left:14px;
  border-left:3px solid var(--brand);
}
.sec-sub{
  font-size:15px;
  color:var(--ink-2);
  margin-top:12px;
  padding-left:17px;
  max-width:56em;
}

/* ---------- 指标条 3 格 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:rgba(16,69,58,.16);
  border-radius:var(--r-md);
  overflow:hidden;
  position:relative;
}
.metrics::before{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(45deg,rgba(16,69,58,.05) 0 2px,transparent 2px 9px);
  pointer-events:none;
}
.metric{
  position:relative;
  background:rgba(203,239,106,.22);
  padding:30px 26px;
}
.metric .num{
  font-size:52px;
  line-height:1;
  font-weight:800;
  color:var(--brand);
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:baseline;
  gap:6px;
}
.metric .num small{font-size:17px;font-weight:700;letter-spacing:0}
.metric .lbl{
  margin-top:12px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
}

/* ---------- 参数对照行 ---------- */
.spec-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.spec-row{
  display:grid;
  grid-template-columns:200px 1fr 190px;
  gap:22px;
  align-items:center;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.spec-row:last-child{border-bottom:0}
.spec-row:hover{background:#FAFBF7}
.spec-name{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15.5px;
  font-weight:700;
  color:var(--brand-deep);
}
.dot{
  width:9px;height:9px;flex:none;border-radius:999px;
  background:var(--accent);
}
.spec-desc{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 11px;
  border-radius:var(--r-sm);
  font-size:12.5px;
  font-weight:700;
  white-space:nowrap;
}
.tag-ok{background:rgba(31,122,84,.10);color:var(--ok)}
.tag-warn{background:rgba(180,120,14,.12);color:var(--warn)}
.tag-err{background:rgba(200,64,47,.10);color:var(--err)}
.spec-act{justify-self:end}

/* ---------- 提示块 ---------- */
.notice-wrap{
  display:grid;
  grid-template-columns:1.25fr 1fr;
  gap:28px;
  align-items:stretch;
}
.notice-box{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 26px 24px;
  box-shadow:var(--sh-1);
  border-left:4px solid var(--accent);
}
.notice-box h3{
  font-size:19px;
  font-weight:800;
  color:var(--brand-deep);
  margin-bottom:18px;
}
.notice-list{display:flex;flex-direction:column;gap:16px}
.notice-list li{
  display:grid;
  grid-template-columns:24px 1fr;
  gap:12px;
  font-size:14.8px;
  color:var(--ink-2);
  line-height:1.8;
}
.notice-list .n{
  width:24px;height:24px;
  display:grid;place-items:center;
  border-radius:999px;
  background:rgba(16,69,58,.08);
  color:var(--brand);
  font-size:12.5px;
  font-weight:800;
  margin-top:2px;
}
.notice-list strong{color:var(--ink);font-weight:700}
.notice-side{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  min-height:260px;
  background:linear-gradient(160deg,#E7EFE2,#C9DFD2);
  box-shadow:var(--sh-1);
}
.notice-side img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.notice-side .cap{
  position:absolute;
  left:20px;right:20px;bottom:18px;
  color:#fff;
  font-size:14px;
  font-weight:600;
  line-height:1.65;
  text-shadow:0 1px 6px rgba(0,0,0,.4);
  z-index:2;
}
.notice-side::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(10,46,39,0) 30%,rgba(10,46,39,.78) 100%);
}

/* ---------- FAQ ---------- */
.faq-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:64px;
  padding:16px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  transition:background var(--t),color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#FAFBF7;color:var(--brand)}
.faq-ico{
  position:relative;
  width:20px;height:20px;flex:none;
}
.faq-ico::before,.faq-ico::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform 220ms ease,background var(--t);
}
.faq-ico::before{left:9px;top:3px;width:2px;height:14px}
.faq-ico::after{left:3px;top:9px;width:14px;height:2px}
.faq-item[open] .faq-ico::before{transform:rotate(90deg);background:var(--accent)}
.faq-item[open] .faq-ico::after{background:var(--accent)}
.faq-body{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-2);
}
.faq-body p+p{margin-top:10px}

/* ---------- CTA / 表单 ---------- */
.cta-section{padding:78px 0 0}
.cta-card{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:40px;
  box-shadow:var(--sh-1);
}
.cta-info h2{
  font-size:28px;
  line-height:1.35;
  font-weight:800;
  color:var(--brand-deep);
  margin-bottom:14px;
}
.cta-info p{font-size:15px;color:var(--ink-2);line-height:1.85}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-points li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.75;
}
.cta-points .ck{
  width:20px;height:20px;flex:none;
  border-radius:999px;
  background:var(--accent);
  color:#fff;
  display:grid;place-items:center;
  font-size:12px;
  font-weight:800;
  margin-top:2px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;
  height:46px;
  padding:0 14px;
  font-family:inherit;
  font-size:14.5px;
  color:var(--ink);
  background:#FCFDFA;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field textarea{height:112px;padding:12px 14px;line-height:1.75;resize:vertical}
.field select{
  appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--brand) 50%),linear-gradient(135deg,var(--brand) 50%,transparent 50%);
  background-position:calc(100% - 19px) 20px,calc(100% - 14px) 20px;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
  padding-right:38px;
}
.field input::placeholder,.field textarea::placeholder{color:#A8B3AB}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 3px rgba(16,69,58,.12);
}
.field .hint{font-size:12.5px;color:var(--ink-3);line-height:1.6}
.check-row{
  grid-column:1/-1;
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:13px;
  color:var(--ink-2);
  line-height:1.7;
}
.check-row input{
  width:18px;height:18px;
  margin:3px 0 0;
  accent-color:var(--brand);
  flex:none;
}
.form-note{
  grid-column:1/-1;
  font-size:12.5px;
  color:var(--ink-3);
  line-height:1.7;
}

/* ---------- 相关分类 ---------- */
.related{padding:66px 0 84px}
.related-head{
  font-size:15px;
  font-weight:700;
  color:var(--ink-3);
  letter-spacing:.8px;
  margin-bottom:16px;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.related-card{
  display:block;
  padding:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  text-decoration:none;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.related-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(16,69,58,.28);
  text-decoration:none;
}
.related-card .rc-t{
  font-size:15.5px;
  font-weight:700;
  color:var(--brand-deep);
  margin-bottom:8px;
}
.related-card .rc-d{
  font-size:13.5px;
  color:var(--ink-2);
  line-height:1.7;
}
.related-card:hover .rc-t{color:var(--accent)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);
  color:#D9E3DC;
  padding:52px 0 0;
  margin-top:auto;
}
.footer-grid{
  max-width:1160px;
  margin:0 auto;
  padding:0 48px 40px;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;
}
.site-footer .brand .b1,
.site-footer .brand .b2{color:#fff}
.site-footer .brand-mark{background:var(--accent);color:#fff}
.site-footer .brand:hover{color:#fff}
.footer-brand p{
  margin-top:16px;
  font-size:13.5px;
  line-height:1.8;
  color:#A9BDB2;
  max-width:30em;
}
.site-footer h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  letter-spacing:.5px;
  margin-bottom:14px;
}
.site-footer ul{display:flex;flex-direction:column;gap:10px}
.site-footer ul a{
  font-size:13.5px;
  color:#B7C9BE;
  text-decoration:none;
  transition:color var(--t);
}
.site-footer ul a:hover{color:var(--lime);text-decoration:none}
.footer-col p.ftext{
  font-size:13.5px;
  line-height:1.9;
  color:#A9BDB2;
}
.footer-bottom{
  max-width:1160px;
  margin:0 auto;
  padding:18px 48px 26px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:12.5px;
  color:#8FA79A;
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  width:44px;height:44px;
  display:grid;place-items:center;
  border:0;border-radius:999px;
  background:var(--brand);
  color:#fff;
  cursor:pointer;
  box-shadow:var(--sh-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity var(--t),visibility var(--t),transform var(--t),background var(--t);
  z-index:80;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--accent)}

/* ---------- 响应式 ---------- */
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidebar-w:216px}
  .container{padding:0 32px}
  .footer-grid,.footer-bottom{padding-left:32px;padding-right:32px}
  .page-head{gap:32px}
  .page-head h1{font-size:38px}
}
@media (max-width:1023px){
  .sidebar{
    width:84%;
    max-width:340px;
    transform:translateX(-102%);
    box-shadow:var(--sh-3);
    background:var(--card);
  }
  .sidebar.open{transform:translateX(0)}
  .layout{margin-left:0;padding-top:60px}
  .topbar{display:flex}
  .container{padding:0 32px}
  .footer-grid{padding:0 32px 36px;grid-template-columns:1fr 1fr;gap:30px}
  .footer-bottom{padding:18px 32px 26px}
  .page-head{grid-template-columns:1fr;gap:28px}
  .page-head h1{font-size:34px}
  .head-visual{aspect-ratio:16/9}
  .section{padding:66px 0 0}
  .cta-section{padding:66px 0 0}
  .cta-card{grid-template-columns:1fr;gap:28px;padding:32px}
  .notice-wrap{grid-template-columns:1fr}
  .notice-side{min-height:220px}
  .spec-row{grid-template-columns:170px 1fr;gap:8px 20px}
  .spec-act{grid-column:2;justify-self:start}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 20px}
  .crumb{padding:20px 0 14px;font-size:12.5px}
  .page-head h1{font-size:30px;line-height:1.3}
  .lede{font-size:16px}
  .eyebrow{font-size:12px;margin-bottom:12px}
  .quickbar{padding:14px 16px;gap:8px 16px}
  .quickbar a{font-size:13.5px}
  .section{padding:54px 0 0}
  .cta-section{padding:54px 0 0}
  .sec-title{font-size:23px;padding-left:12px}
  .sec-sub{font-size:14.5px;padding-left:15px}
  .metrics{grid-template-columns:1fr;background:rgba(16,69,58,.16)}
  .metric{padding:22px 20px}
  .metric .num{font-size:42px}
  .spec-row{grid-template-columns:1fr;gap:10px;padding:18px}
  .spec-act{grid-column:1;justify-self:start}
  .spec-name{font-size:15px}
  .spec-desc{font-size:14px}
  .cta-card{padding:22px;border-radius:var(--r-md)}
  .cta-info h2{font-size:23px}
  .form-grid{grid-template-columns:1fr}
  .field.full,.check-row,.form-note{grid-column:1}
  .field input,.field select{height:48px}
  .btn{height:48px}
  .faq-item summary{padding:14px 18px;font-size:15px;min-height:56px}
  .faq-body{padding:0 18px 18px 18px;font-size:14.5px}
  .related{padding:46px 0 62px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{padding:0 20px 30px;grid-template-columns:1fr;gap:26px}
  .footer-bottom{padding:16px 20px 24px;flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:16px}
  .nav a{min-height:48px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category5 */
:root{
  --brand:#10453A;
  --brand-deep:#0A2E27;
  --accent:#FF7A29;
  --accent-dark:#E86A1C;
  --lime:#CBEF6A;
  --paper:#F5F6F1;
  --card:#FFFFFF;
  --line:#DDE4DA;
  --ink:#16211C;
  --ink-2:#4E5D56;
  --ink-3:#7B8880;
  --ok:#1F7A54;
  --err:#C8402F;
  --warn:#B4780E;
  --r-badge:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(22,33,28,.05);
  --sh-2:0 10px 28px rgba(16,69,58,.10);
  --sh-3:0 12px 40px rgba(0,0,0,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:252px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.32;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(203,239,106,.6);color:var(--brand-deep)}

/* ---------- App shell ---------- */
.shell{display:flex;min-height:100vh;align-items:stretch}
.sidebar{
  width:var(--sidebar-w);
  position:fixed;
  top:0;left:0;bottom:0;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:22px 16px 18px;
  background:var(--paper);
  border-right:1px solid var(--line);
  overflow-y:auto;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.brand:hover{color:var(--ink);text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:none;
  display:grid;place-items:center;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-weight:800;
  font-size:19px;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.22}
.brand-text .b1{font-size:15px;font-weight:800;color:var(--brand)}
.brand-text .b2{font-size:12px;color:var(--ink-3);letter-spacing:.08em}
.side-rule{height:1px;background:var(--line);margin:4px 0}
.nav{display:flex;flex-direction:column;gap:4px}
.nav a{
  display:flex;align-items:center;
  height:44px;
  padding:0 12px;
  border-left:3px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  text-decoration:none;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav a:hover{background:rgba(16,69,58,.06);color:var(--brand);text-decoration:none}
.nav a.active{
  background:rgba(16,69,58,.08);
  border-left-color:var(--accent);
  color:var(--brand);
  font-weight:800;
}
.side-card{
  margin-top:auto;
  padding:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.side-card p{font-size:13.5px;line-height:1.75;color:var(--ink-2)}
.btn-side{
  display:flex;align-items:center;justify-content:center;
  margin-top:12px;
  height:40px;
  border:1.5px solid var(--accent);
  border-radius:var(--r-btn);
  color:var(--accent);
  font-size:14px;
  font-weight:700;
  background:transparent;
  text-decoration:none;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.btn-side:hover{background:var(--accent);color:#fff;text-decoration:none}
.side-copy{font-size:12px;line-height:1.7;color:var(--ink-3);padding:0 2px}

.main{
  flex:1;
  min-width:0;
  margin-left:var(--sidebar-w);
  display:flex;
  flex-direction:column;
}

/* ---------- Mobile topbar ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(245,246,241,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  z-index:65;
}
.burger{
  width:44px;height:44px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--card);
  color:var(--brand);
  cursor:pointer;
}
.burger:hover{background:rgba(16,69,58,.06)}
.sidebar-close{
  display:none;
  width:36px;height:36px;
  place-items:center;
  border:1px solid var(--line);
  border-radius:9px;
  background:var(--card);
  color:var(--ink-2);
  cursor:pointer;
  align-self:flex-end;
}
.overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(10,46,39,.55);
  opacity:0;
  pointer-events:none;
  transition:opacity .24s var(--ease);
  z-index:58;
}

/* ---------- Layout helpers ---------- */
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 48px}
.section{padding:80px 0}
.section--tight{padding:64px 0}

/* ---------- Page head ---------- */
.page-head{
  position:relative;
  padding:64px 0 56px;
  color:#fff;
  overflow:hidden;
  background:var(--brand-deep) url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.page-head::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(10,46,39,.95) 0%,rgba(10,46,39,.88) 46%,rgba(10,46,39,.62) 100%);
}
.page-head .wrap{position:relative;z-index:2}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(235,243,238,.72);
  margin-bottom:22px;
}
.crumbs a{color:rgba(235,243,238,.72);text-decoration:none}
.crumbs a:hover{color:var(--lime);text-decoration:none}
.crumbs span.sep{color:rgba(235,243,238,.4)}
.crumbs .now{color:#fff;font-weight:600}
.page-head h1{
  font-size:44px;
  line-height:1.28;
  color:#fff;
  max-width:900px;
  letter-spacing:-.02em;
}
.page-head .lead{
  margin-top:18px;
  max-width:760px;
  font-size:18px;
  line-height:1.85;
  color:rgba(235,243,238,.86);
}
.quick{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:30px;
  padding:12px 16px;
  border:1px solid rgba(203,239,106,.32);
  background:rgba(255,255,255,.07);
  border-radius:12px;
}
.quick-label{
  font-size:13px;font-weight:700;letter-spacing:.05em;
  color:var(--lime);
  padding-right:6px;
}
.quick a{
  display:inline-flex;align-items:center;
  padding:7px 13px;
  border-radius:var(--r-badge);
  background:rgba(255,255,255,.1);
  color:#fff;
  font-size:14px;font-weight:600;
  text-decoration:none;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.quick a:hover{background:var(--accent);color:#fff;text-decoration:none}

/* ---------- Section headings ---------- */
.sec-head{max-width:760px;margin-bottom:36px}
.sec-num{
  display:block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.sec-head h2{
  font-size:30px;
  line-height:1.36;
  position:relative;
  padding-left:14px;
}
.sec-head h2::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;
  width:3px;border-radius:2px;
  background:var(--brand);
}
.sec-sub{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2)}

/* ---------- Picture cards 2x2 ---------- */
.pic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.pic-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.pic-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(16,69,58,.28);
}
.pic-card figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:#E4EEDD}
.pic-card img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.pic-card:hover img{transform:scale(1.03)}
.pic-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{
  align-self:flex-start;
  padding:3px 9px;
  border-radius:6px;
  background:rgba(16,69,58,.08);
  color:var(--brand);
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
}
.tag--lime{background:rgba(203,239,106,.42);color:var(--brand-deep)}
.pic-body h3{font-size:20px;line-height:1.45}
.pic-body p{
  font-size:14.5px;
  line-height:1.82;
  color:var(--ink-2);
}
.link-arrow{
  margin-top:auto;
  padding-top:6px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;
  color:var(--brand);
  text-decoration:none;
}
.link-arrow .arw{transition:transform .18s var(--ease)}
.link-arrow:hover{color:var(--accent);text-decoration:none}
.link-arrow:hover .arw{transform:translateX(3px)}

/* ---------- FAQ ---------- */
.faq{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;
  padding:16px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:rgba(16,69,58,.04);color:var(--brand)}
.faq summary .chev{
  width:20px;height:20px;flex:none;
  color:var(--brand);
  transition:transform .22s ease;
}
.faq details[open] summary .chev{transform:rotate(180deg)}
.faq details[open] summary{color:var(--brand)}
.faq .ans{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.92;
  color:var(--ink-2);
}
.faq .ans p+p{margin-top:12px}

/* ---------- Contact ---------- */
.contact-band{background:#EDF1E7;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:34px;align-items:start}
.contact-info h2{font-size:28px;line-height:1.38;margin-bottom:16px}
.contact-info>p{font-size:16px;line-height:1.9;color:var(--ink-2)}
.info-list{margin-top:26px;display:flex;flex-direction:column}
.info-list li{
  display:flex;gap:14px;
  padding:15px 0;
  border-bottom:1px dashed rgba(16,69,58,.18);
}
.info-list li:last-child{border-bottom:0}
.info-list .ii{
  width:34px;height:34px;flex:none;
  display:grid;place-items:center;
  border-radius:9px;
  background:rgba(16,69,58,.09);
  color:var(--brand);
}
.info-list .it{font-size:14px;font-weight:700;color:var(--ink)}
.info-list .id{font-size:14px;line-height:1.8;color:var(--ink-2)}

.form-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-1);
}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-tip{font-size:13.5px;color:var(--ink-3);margin-bottom:22px}
.form-note{
  display:none;
  margin-bottom:18px;
  padding:12px 14px;
  border-radius:var(--r-badge);
  background:rgba(31,122,84,.12);
  color:var(--ok);
  font-size:13.5px;
  line-height:1.7;
}
.form-note.show{display:block}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;
  min-height:46px;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--ink);
  font:inherit;
  font-size:15px;
  line-height:1.6;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{min-height:126px;resize:vertical;line-height:1.8}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(16,69,58,.12);
}
.field select{
  appearance:none;
  -webkit-appearance:none;
  padding-right:38px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%234E5D56' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
}
.field input::placeholder,.field textarea::placeholder{color:#A6B1A9}
.field .err-msg{display:none;margin-top:6px;font-size:13px;color:var(--err)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err)}
.field.has-error .err-msg{display:block}
.checkline{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13px;line-height:1.72;color:var(--ink-2);
  margin-bottom:20px;
}
.checkline input{width:16px;height:16px;margin-top:4px;flex:none;accent-color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;
  padding:0 24px;
  border:0;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  text-decoration:none;
  transition:background .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 6px 18px rgba(255,122,41,.24);
}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);text-decoration:none}
.btn-primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(255,122,41,.24)}
.btn-block{width:100%}

/* ---------- Related categories ---------- */
.related{background:var(--brand-deep);color:#fff}
.related h2{font-size:24px;margin-bottom:8px;color:#fff}
.related p{font-size:14.5px;line-height:1.8;color:rgba(216,227,220,.78);margin-bottom:28px;max-width:680px}
.rel-list{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.rel-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:16px 18px;
  border:1px solid rgba(255,255,255,.16);
  border-radius:12px;
  background:rgba(255,255,255,.04);
  color:#fff;
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.rel-list a:hover{
  background:rgba(255,255,255,.1);
  border-color:var(--lime);
  color:#fff;
  text-decoration:none;
  transform:translateY(-2px);
}
.rel-list .arw{color:var(--lime);transition:transform .18s var(--ease)}
.rel-list a:hover .arw{transform:translateX(3px)}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-deep);color:#D8E3DC;padding:64px 0 0;margin-top:auto}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px;
  width:100%;
  max-width:1160px;
  margin:0 auto;
  padding:0 48px 46px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text .b1{color:#fff}
.footer-brand .brand-text .b2{color:rgba(216,227,220,.6)}
.footer-brand .brand-mark{background:var(--lime);color:var(--brand-deep)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(216,227,220,.76);max-width:340px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(216,227,220,.82);text-decoration:none;transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--lime);text-decoration:none}
.ftext{font-size:13.5px;line-height:1.9;color:rgba(216,227,220,.76)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 48px;
  max-width:1160px;
  margin:0 auto;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;
  color:rgba(216,227,220,.62);
}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  width:44px;height:44px;
  display:grid;place-items:center;
  border:0;border-radius:999px;
  background:var(--brand);
  color:#fff;
  cursor:pointer;
  box-shadow:0 8px 24px rgba(10,46,39,.28);
  opacity:0;
  pointer-events:none;
  transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),background .18s var(--ease);
  z-index:70;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--accent)}

/* ---------- Breakpoints ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:216px}
  .wrap{padding:0 32px}
  .footer-grid{padding:0 32px 44px}
  .footer-bottom{padding:20px 32px}
  .pic-grid{gap:20px}
  .page-head h1{font-size:40px}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .sidebar{
    transform:translateX(-100%);
    width:84%;
    max-width:320px;
    padding:18px 16px;
    transition:transform .28s var(--ease);
  }
  .sidebar.open{transform:translateX(0);box-shadow:var(--sh-3)}
  .sidebar-close{display:grid}
  .overlay{display:block}
  .overlay.show{opacity:1;pointer-events:auto}
  .main{margin-left:0;padding-top:60px}
  .section{padding:64px 0}
  .page-head{padding:48px 0 44px}
  .page-head h1{font-size:34px}
  .page-head .lead{font-size:16.5px}
  .sec-head h2{font-size:26px}
  .contact-grid{grid-template-columns:1fr;gap:26px}
  .rel-list{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:0 32px 40px}
  .footer-brand p{max-width:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .section{padding:56px 0}
  .page-head{padding:38px 0 36px}
  .page-head h1{font-size:29px;line-height:1.34}
  .page-head .lead{font-size:16px;margin-top:14px}
  .crumbs{font-size:12.5px;margin-bottom:16px}
  .quick{margin-top:22px;padding:12px}
  .quick a{font-size:13.5px;padding:6px 10px}
  .sec-head{margin-bottom:26px}
  .sec-head h2{font-size:23px}
  .sec-sub{font-size:15px}
  .pic-grid{grid-template-columns:1fr;gap:18px}
  .pic-body{padding:18px 18px 20px}
  .pic-body h3{font-size:18px}
  .faq summary{padding:14px 16px;font-size:15px;min-height:56px}
  .faq .ans{padding:0 16px 18px;font-size:14.5px}
  .contact-info h2{font-size:23px}
  .form-card{padding:20px}
  .btn{height:48px;width:100%}
  .rel-list{grid-template-columns:1fr}
  .related h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:0 20px 36px}
  .footer-bottom{padding:18px 20px;flex-direction:column;align-items:flex-start}
  .site-footer{padding-top:48px}
  .to-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .pic-card:hover{transform:none}
  .pic-card:hover img{transform:none}
  .to-top{transform:none}
}