/* roulang page: index */
:root{
  --brand-600:#FF5A1F;
  --brand-500:#FF7A3D;
  --brand-700:#E04408;
  --accent:#0FA97F;
  --sun:#FFC53D;
  --dark-900:#14161A;
  --dark-800:#1E2229;
  --bg:#FFF9F5;
  --bg-alt:#F6F1EB;
  --line:#EFE7E0;
  --line-strong:#E4DAD2;
  --text:#14161A;
  --text-soft:#6B6560;
  --radius-card:20px;
  --radius-lg:26px;
  --radius-input:12px;
  --radius-pill:999px;
  --sh-1:0 2px 8px rgba(20,22,26,.05);
  --sh-2:0 12px 32px rgba(20,22,26,.08);
  --sh-3:0 20px 48px rgba(224,68,8,.16);
  --grad-main:linear-gradient(135deg,#FF5A1F,#FF9E2C);
  --max:1240px;
  --ease:220ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--max);margin:0 auto;padding:0 24px;}
.num,.stat-num,.badge-num,.flow-num{font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,245,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,249,245,.97);}
.nav-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:76px;
  transition:height var(--ease);
}
.site-header.is-scrolled .nav-grid{height:64px;}
.nav-side{display:flex;align-items:center;gap:22px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:14.5px;
  color:#3A3733;
  padding:6px 2px;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand-600);}
.nav-link[aria-current="page"]{color:var(--brand-700);font-weight:600;}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad-main);
}
.nav-logo{display:flex;align-items:center;gap:10px;justify-self:center;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-main);
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(224,68,8,.22);
  flex:0 0 auto;
}
.logo-mark svg{width:19px;height:19px;display:block;}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.4px;}
.nav-toggle,.nav-mobile-cta{display:none;}
.nav-toggle{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line-strong);
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.nav-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:8px 0 12px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 24px;font-size:15px;border-bottom:1px solid var(--line);
}
.nav-drawer a:last-child{border-bottom:0;}
.nav-drawer a[aria-current="page"]{color:var(--brand-700);font-weight:600;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  will-change:transform;
}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 10px 24px rgba(224,68,8,.24);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(224,68,8,.3);filter:brightness(1.04);}
.btn-outline{border:1px solid var(--line-strong);color:var(--text);background:#fff;}
.btn-outline:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);
}
.link-arrow i{font-style:normal;transition:transform var(--ease);display:inline-block;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- Section basics ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-700);
  background:rgba(255,90,31,.08);
  padding:6px 14px;border-radius:var(--radius-pill);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.2px;}
.section-head p{margin-top:14px;color:var(--text-soft);font-size:15.5px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:72px 0 88px;
  background:
    radial-gradient(720px 420px at 88% -10%, rgba(255,90,31,.12), transparent 70%),
    var(--bg);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-text{max-width:560px;position:relative;}
.hero-text h1{
  font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.4px;
}
.hero-text h1 em{font-style:normal;color:var(--brand-600);}
.hero-sub{margin-top:20px;font-size:16.5px;color:#4A453F;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.hero-deco{position:absolute;left:-6px;bottom:-42px;display:flex;gap:10px;pointer-events:none;}
.hero-deco i{
  display:block;width:54px;height:10px;border-radius:999px;background:var(--grad-main);opacity:.5;
  transform:skewX(-28deg);
}
.hero-deco i:last-child{width:22px;background:var(--accent);opacity:.4;}
.hero-media{position:relative;}
.hero-media > img{
  width:100%;aspect-ratio:16/12;object-fit:cover;border-radius:28px;
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.hero-badge{
  position:absolute;right:-14px;bottom:-26px;
  background:#fff;border-radius:var(--radius-card);border:1px solid var(--line);
  box-shadow:var(--sh-2);padding:16px 22px;min-width:214px;
}
.hero-badge .badge-num{font-size:36px;font-weight:700;line-height:1.1;color:var(--brand-700);}
.hero-badge .badge-unit{font-size:15px;font-weight:600;color:var(--text);margin-left:4px;}
.hero-badge p{font-size:13px;color:var(--text-soft);margin-top:2px;}

/* ---------- Pain ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.pain-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 28px 28px 32px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.pain-card::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:0 3px 3px 0;
  background:var(--grad-main);opacity:.85;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.pain-no{font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:1px;}
.pain-card h3{margin-top:10px;font-size:18px;font-weight:600;line-height:1.5;}
.pain-card p{margin-top:10px;font-size:15px;color:var(--text-soft);}

/* ---------- Plans ---------- */
.plan-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:24px;align-items:start;}
.plan-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.plan-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.plan-main figure{margin:0;position:relative;}
.plan-main figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.plan-main figure::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:46%;background:var(--grad-main);
}
.plan-body{padding:28px;}
.plan-body h3{font-size:20px;font-weight:600;}
.plan-body > p{margin-top:12px;font-size:15px;color:var(--text-soft);}
.plan-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.plan-list li{position:relative;padding-left:24px;font-size:15px;color:#3A3733;}
.plan-list li::before{
  content:"";position:absolute;left:0;top:10px;width:12px;height:12px;border-radius:50%;
  background:rgba(15,169,127,.14);border:2px solid var(--accent);
}
.plan-side{display:flex;flex-direction:column;gap:24px;}
.plan-mini{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.plan-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.plan-mini h3{font-size:18px;font-weight:600;}
.plan-mini p{margin-top:10px;font-size:15px;color:var(--text-soft);}
.plan-mini .link-arrow{margin-top:16px;}

/* ---------- Category rows ---------- */
.cat-list{border-top:1px solid var(--line);}
.cat-row{
  display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center;
  padding:26px 6px;border-bottom:1px solid var(--line);
  transition:background var(--ease),padding var(--ease);
}
.cat-row:hover{background:rgba(255,90,31,.045);padding-left:16px;padding-right:16px;}
.cat-index{font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:1px;min-width:34px;}
.cat-row h3{font-size:18px;font-weight:600;}
.cat-row p{margin-top:6px;font-size:14.5px;color:var(--text-soft);max-width:760px;}
.cat-row .cat-go{font-size:14px;font-weight:600;color:var(--brand-700);white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
.cat-row:hover .cat-go{color:var(--brand-600);}

/* ---------- Stat band ---------- */
.stat-band{
  background:var(--dark-900);color:#fff;position:relative;overflow:hidden;
  padding:88px 0;border-radius:0;
}
.stat-band::before{
  content:"";position:absolute;inset:-30% -10% auto auto;width:620px;height:620px;
  background:radial-gradient(circle, rgba(255,90,31,.16), transparent 66%);
  pointer-events:none;
}
.stat-band .section-head h2{color:#fff;}
.stat-band .section-head p{color:rgba(255,255,255,.66);}
.stat-band .eyebrow{background:rgba(255,255,255,.08);color:#fff;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.stat-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--radius-card);
  padding:26px 24px;
  transition:transform var(--ease),background var(--ease);
}
.stat-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.09);}
.stat-num{font-size:clamp(34px,4vw,50px);font-weight:700;line-height:1.05;color:#fff;}
.stat-num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--brand-500);}
.stat-label{margin-top:10px;font-size:15px;font-weight:600;color:rgba(255,255,255,.92);}
.stat-desc{margin-top:6px;font-size:13px;color:rgba(255,255,255,.58);}
.stat-desc::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);
  margin-right:7px;vertical-align:1px;
}

/* ---------- Flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.flow::before{
  content:"";position:absolute;left:0;right:0;top:19px;height:2px;
  background:linear-gradient(90deg,rgba(255,90,31,.55),rgba(255,90,31,.08));z-index:0;
}
.flow-step{position:relative;z-index:1;}
.flow-dot{
  width:40px;height:40px;border-radius:50%;background:#fff;border:2px solid var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--brand-700);
  font-variant-numeric:tabular-nums;
}
.flow-step h3{margin-top:18px;font-size:17px;font-weight:600;}
.flow-step p{margin-top:8px;font-size:14.5px;color:var(--text-soft);}

/* ---------- Posts (CMS) ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.post-cover{position:relative;display:block;}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line);}
.post-cat{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--brand-700);
  font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:var(--radius-pill);
  box-shadow:var(--sh-1);
}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.post-title{font-size:17px;font-weight:600;line-height:1.55;}
.post-title a:hover{color:var(--brand-600);}
.post-excerpt{
  margin-top:10px;font-size:14.5px;color:var(--text-soft);flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-soft);
}
.post-empty{
  text-align:center;background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius-card);
  padding:56px 24px;
}
.post-empty strong{display:block;font-size:17px;font-weight:600;}
.post-empty span{display:block;margin-top:8px;font-size:14.5px;color:var(--text-soft);}

/* ---------- Quotes ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--sh-1);position:relative;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.quote-card::before{
  content:"";position:absolute;left:28px;top:0;width:44px;height:3px;border-radius:0 0 3px 3px;
  background:var(--grad-main);
}
.quote-card blockquote{font-size:15.5px;line-height:1.85;color:#33302C;}
.quote-who{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-soft);}
.quote-who b{display:block;font-size:14.5px;font-weight:600;color:var(--text);margin-bottom:2px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:20px 24px;box-shadow:var(--sh-1);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.faq-item[open]{background:rgba(255,90,31,.045);border-color:rgba(255,90,31,.28);box-shadow:var(--sh-2);position:relative;}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:0 3px 3px 0;background:var(--grad-main);
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;line-height:1;color:var(--brand-600);font-weight:400;
  transition:transform var(--ease);transform-origin:center;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{margin-top:14px;font-size:14.5px;color:var(--text-soft);}

/* ---------- CTA + form ---------- */
.cta-section{background:var(--bg-alt);}
.cta-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:start;}
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;}
.cta-copy p{margin-top:16px;font-size:15.5px;color:var(--text-soft);}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{position:relative;padding-left:26px;font-size:15px;}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:50%;
  background:rgba(15,169,127,.14);border:2px solid var(--accent);
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:19px;font-weight:600;}
.form-card > p{margin-top:8px;font-size:14.5px;color:var(--text-soft);}
.field{margin-top:20px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.field input[type="text"],.field input[type="tel"],.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--radius-input);
  padding:12px 14px;background:#FFFDFC;transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:104px;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(255,90,31,.14);
}
.field input::placeholder,.field textarea::placeholder{color:#A9A19A;}
.privacy{display:flex;align-items:flex-start;gap:10px;margin-top:20px;font-size:13px;color:var(--text-soft);line-height:1.7;}
.privacy input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand-600);flex:0 0 auto;}
.form-actions{margin-top:24px;}
.form-note{margin-top:14px;font-size:13px;color:var(--accent);display:none;}
.form-note.is-on{display:block;}
.form-hint{margin-top:14px;font-size:13px;color:var(--text-soft);}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark-900);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand .nav-logo{justify-self:flex-start;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:var(--brand-500);}
.footer-col p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.9;}
.footer-col p b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--brand-500);}

/* ---------- Consult float & modal ---------- */
.consult-float{
  position:fixed;right:26px;bottom:26px;z-index:70;
  display:none;align-items:center;gap:8px;
  padding:0 24px;min-height:52px;border-radius:var(--radius-pill);
  background:var(--grad-main);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-3);transition:transform var(--ease),filter var(--ease);
}
.consult-float:hover{transform:translateY(-3px);filter:brightness(1.05);}
.modal{position:fixed;inset:0;z-index:90;display:none;align-items:center;justify-content:center;padding:24px;}
.modal.is-open{display:flex;}
.modal-mask{position:absolute;inset:0;background:rgba(20,22,26,.5);}
.modal-card{
  position:relative;background:#fff;border-radius:24px;max-width:480px;width:100%;
  padding:32px;box-shadow:0 30px 70px rgba(20,22,26,.3);
  animation:pop 200ms ease;
}
@keyframes pop{from{transform:translateY(12px);opacity:0;}to{transform:translateY(0);opacity:1;}}
.modal-close{
  position:absolute;right:16px;top:16px;width:34px;height:34px;border-radius:50%;
  background:var(--bg-alt);font-size:20px;line-height:1;color:var(--text-soft);
  display:flex;align-items:center;justify-content:center;transition:background var(--ease),color var(--ease);
}
.modal-close:hover{background:rgba(255,90,31,.12);color:var(--brand-700);}
.modal-card h2{font-size:20px;font-weight:700;}
.modal-card > p{margin-top:12px;font-size:15px;color:var(--text-soft);}
.modal-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.modal-list li{position:relative;padding-left:22px;font-size:14.5px;color:#3A3733;}
.modal-list li::before{
  content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:50%;
  background:rgba(255,90,31,.16);border:2px solid var(--brand-600);
}
.modal-card .btn{margin-top:24px;}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 22px;}
}
@media (max-width:1023px){
  .nav-grid{grid-template-columns:auto 1fr auto;height:64px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:flex;grid-column:1;justify-self:start;}
  .nav-logo{grid-column:2;}
  .nav-mobile-cta{
    display:inline-flex;grid-column:3;justify-self:end;
    min-height:38px;padding:0 16px;font-size:14px;border-radius:var(--radius-pill);
    background:var(--grad-main);color:#fff;font-weight:600;align-items:center;
  }
  .hero{padding:48px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-text{max-width:none;}
  .hero-media > img{aspect-ratio:16/10;}
  .hero-badge{position:static;margin-top:-30px;margin-left:auto;margin-right:16px;width:max-content;}
  .hero-deco{display:none;}
  .section{padding:72px 0;}
  .plan-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .flow::before{display:none;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .quote-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 32px;}
}
@media (max-width:767px){
  .pain-grid{grid-template-columns:1fr;}
  .faq-list{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr;}
  .cat-row{grid-template-columns:auto 1fr;gap:14px 16px;}
  .cat-row .cat-go{grid-column:2;}
  .hero-actions .btn{width:100%;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  body{font-size:15.5px;}
  .section{padding:56px 0;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-band{padding:64px 0;}
  .flow{grid-template-columns:1fr;}
  .form-card{padding:24px 20px;}
  .hero-badge{margin-right:0;min-width:0;width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .consult-float{right:16px;bottom:16px;min-height:48px;padding:0 18px;font-size:14px;}
}
@media (min-width:1024px){
  .consult-float{display:inline-flex;}
}

/* roulang page: article */
:root{
  --brand-600:#FF5A1F;
  --brand-500:#FF7A3D;
  --brand-700:#E04408;
  --accent:#0FA97F;
  --sun:#FFC53D;
  --dark-900:#14161A;
  --dark-800:#1E2229;
  --bg:#FFF9F5;
  --bg-alt:#F6F1EB;
  --line:#EFE7E0;
  --line-strong:#E4DAD2;
  --text:#14161A;
  --muted:#6B6560;
  --muted-2:#8C857E;
  --white:#ffffff;
  --grad:linear-gradient(135deg,#FF5A1F,#FF9E2C);
  --sh-1:0 2px 8px rgba(20,22,26,.05);
  --sh-2:0 12px 32px rgba(20,22,26,.08);
  --sh-3:0 20px 48px rgba(224,68,8,.16);
  --r-card:20px;
  --r-lg:26px;
  --r-btn:999px;
  --r-input:12px;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand-600)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,245,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,249,245,.98)}
.nav-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:76px;
  transition:height .22s ease;
}
.site-header.is-scrolled .nav-inner{height:64px}
.nav-side{display:flex;align-items:center;gap:22px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end;gap:14px}
.nav-link{
  position:relative;
  font-size:15px;
  color:#2B2B2E;
  padding:6px 2px;
  transition:color .22s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--grad);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--brand-600);font-weight:600}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-logo{display:inline-flex;align-items:center;gap:10px}
.logo-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(224,68,8,.28);
  flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.4px;color:var(--text)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--grad);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 8px 20px rgba(224,68,8,.24);
  transition:transform .22s ease,filter .22s ease;
}
.nav-cta:hover{color:#fff;filter:brightness(1.04);transform:translateY(-2px)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 24px;font-size:15px;border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-child{border-bottom:0}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:64px 0 44px;
  background:linear-gradient(180deg,#FFF3EA 0%,rgba(255,249,245,0) 100%);
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(420px 220px at 12% 8%,rgba(255,90,31,.12),transparent 70%),
    radial-gradient(360px 200px at 88% 0%,rgba(15,169,127,.10),transparent 72%);
}
.article-hero .container{position:relative;z-index:1}
.wave-deco{
  position:absolute;left:0;right:0;bottom:-6px;height:70px;opacity:.5;pointer-events:none;
}
.wave-deco svg{width:100%;height:100%;display:block}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted-2);margin-bottom:20px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#C9C0B8}
.article-head{max-width:820px}
.article-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--r-btn);
  background:rgba(255,90,31,.08);color:var(--brand-700);
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.article-badge i{width:6px;height:6px;border-radius:50%;background:var(--brand-600);display:block}
.article-head h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.3px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 20px;
  margin-top:20px;font-size:13.5px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta b{font-weight:600;color:var(--text)}

/* ---------- 版面 ---------- */
.article-main{padding:0 0 96px}
.cover-wrap{
  margin:0 0 48px;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-2);position:relative;
}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-wrap::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:var(--grad);opacity:.9;
}
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;
  align-items:start;
}
.reading{max-width:780px}

/* 正文排版 */
.article-body{font-size:16.5px;line-height:1.9;color:#22242A}
.article-body > * + *{margin-top:18px}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.4vw,27px);
  line-height:1.35;font-weight:700;
  margin:44px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:3px;background:var(--grad);
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.45;margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:18px 0;padding-left:24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0;padding-left:2px}
.article-body li::marker{color:var(--brand-600)}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:rgba(255,90,31,.06);
  border-left:4px solid var(--brand-600);
  border-radius:0 14px 14px 0;
  color:#3A3A40;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;border-radius:16px;margin:26px auto;box-shadow:var(--sh-1);
}
.article-body a{color:var(--brand-700);border-bottom:1px solid rgba(255,90,31,.35)}
.article-body a:hover{color:var(--brand-600);border-bottom-color:var(--brand-600)}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 14px;border:1px solid var(--line);text-align:left;vertical-align:top;
}
.article-body thead th{background:var(--bg-alt);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FFFBF8}
.table-scroll{overflow-x:auto}
.article-body code{
  background:#F7F1EA;border-radius:6px;padding:2px 6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#B8380A;
}
.article-body pre{
  background:var(--dark-900);color:#F3EFEA;border-radius:14px;padding:18px 20px;overflow-x:auto;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* 标签与翻页 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--line-strong);font-size:13.5px;color:var(--muted);
  transition:all .22s ease;
}
.tag:hover{color:var(--brand-600);border-color:rgba(255,90,31,.28);transform:translateY(-2px)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.post-nav a{
  display:block;padding:18px 20px;border-radius:16px;background:#fff;border:1px solid var(--line);
  font-size:14.5px;transition:all .22s ease;
}
.post-nav a:hover{border-color:rgba(255,90,31,.28);box-shadow:var(--sh-1);transform:translateY(-4px)}
.post-nav em{display:block;font-style:normal;font-size:13px;color:var(--muted-2);margin-bottom:6px}
.post-nav .align-right{text-align:right}

/* 空态 */
.empty-state{
  text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:64px 32px;box-shadow:var(--sh-1);
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:50%;margin:0 auto 18px;
  background:rgba(255,90,31,.08);display:flex;align-items:center;justify-content:center;
}
.empty-state .empty-icon svg{width:26px;height:26px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:24px}

/* 侧栏 */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:100px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px}
.side-card p{font-size:14px;color:var(--muted);line-height:1.8}
.side-list li + li{margin-top:10px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14.5px;color:#2B2B2E;padding:8px 0;border-bottom:1px dashed var(--line);
  transition:color .22s ease,padding-left .22s ease;
}
.side-list li:last-child a{border-bottom:0}
.side-list a:hover{color:var(--brand-600);padding-left:4px}
.side-list a::after{content:"→";color:var(--brand-500);font-size:14px}
.side-cta{background:var(--dark-900);border-color:var(--dark-900);position:relative;overflow:hidden}
.side-cta::before{
  content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.35),transparent 70%);
}
.side-cta h3{color:#fff;position:relative}
.side-cta p{color:rgba(255,255,255,.72);position:relative;margin-bottom:18px}
.side-cta .btn{position:relative;width:100%}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;border:1px solid transparent;
  transition:transform .22s ease,filter .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(224,68,8,.24)}
.btn-primary:hover{color:#fff;filter:brightness(1.04);transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--brand-600);border-color:var(--brand-600);transform:translateY(-2px)}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:14.5px;
  transition:transform .22s ease,color .22s ease;
}
.link-more:hover{color:var(--brand-600);transform:translateX(4px)}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 88px}
.section-head{margin-bottom:32px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-700);
  background:rgba(255,90,31,.08);border-radius:var(--r-btn);padding:5px 14px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700}
.section-head p{color:var(--muted);margin-top:10px;max-width:680px;font-size:15.5px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28)}
.post-card .thumb{position:relative;overflow:hidden}
.post-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .thumb .badge{
  position:absolute;left:14px;top:14px;
  background:rgba(20,22,26,.72);color:#fff;font-size:12.5px;padding:5px 12px;border-radius:var(--r-btn);
  backdrop-filter:blur(4px);
}
.post-card .body{padding:22px;display:flex;flex-direction:column;flex:1}
.post-card h3{
  font-size:17.5px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card p{
  margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .foot{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted-2);border-top:1px solid var(--line);
}
.post-card .foot .link-more{font-size:13.5px}

/* ---------- 表单区 ---------- */
.lead-section{padding:0 0 96px}
.lead-wrap{
  display:grid;grid-template-columns:1fr 460px;gap:56px;align-items:start;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px;position:relative;overflow:hidden;
}
.lead-wrap::after{
  content:"";position:absolute;right:-80px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.14),transparent 70%);
}
.lead-copy{position:relative;z-index:1}
.lead-copy h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;margin-bottom:16px}
.lead-copy p{color:var(--muted);margin-bottom:22px}
.lead-points li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#2B2B2E;margin-bottom:12px;
}
.lead-points li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:50%;
  background:rgba(15,169,127,.14);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230FA97F' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size:12px;background-position:center;background-repeat:no-repeat;
}
.form-card{
  position:relative;z-index:1;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:6px}
.form-card .hint{font-size:13.5px;color:var(--muted-2);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px}
.field input,.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--r-input);
  padding:13px 14px;background:#FFFDFC;font-size:15px;line-height:1.6;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);background:#fff;box-shadow:0 0 0 4px rgba(255,90,31,.14);
}
.field input::placeholder,.field textarea::placeholder{color:#AFA7A0}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.7;margin:6px 0 20px}
.check input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand-600);flex:0 0 auto}
.check a{color:var(--brand-700);text-decoration:underline}
.form-card .btn{width:100%;height:52px}
.form-note{font-size:13px;color:var(--muted-2);margin-top:14px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark-900);color:rgba(255,255,255,.78);padding:72px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;
  padding-bottom:44px;
}
.footer-brand .nav-logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.65);max-width:320px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;transition:color .22s ease}
.footer-col a:hover{color:var(--brand-500)}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.65);margin-bottom:12px}
.footer-col p b{color:#fff;font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0 28px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 悬浮咨询 ---------- */
.float-consult{
  position:fixed;right:28px;bottom:28px;z-index:70;display:none;
}
.float-consult button{
  display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--grad);color:#fff;font-weight:600;font-size:15px;box-shadow:var(--sh-3);
  transition:transform .22s ease,filter .22s ease;
}
.float-consult button:hover{transform:translateY(-2px);filter:brightness(1.04)}
.modal-mask{
  position:fixed;inset:0;z-index:80;background:rgba(20,22,26,.5);
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-mask.open{display:flex}
.modal{
  position:relative;width:100%;max-width:480px;background:#fff;border-radius:24px;padding:32px;
  box-shadow:var(--sh-2);
}
.modal h3{font-size:20px;font-weight:700;margin-bottom:8px}
.modal p{font-size:14px;color:var(--muted);margin-bottom:20px}
.modal .modal-close{
  position:absolute;right:16px;top:16px;width:36px;height:36px;border-radius:50%;
  background:var(--bg-alt);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--muted);
}
.modal .modal-close:hover{background:rgba(255,90,31,.12);color:var(--brand-700)}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .float-consult{display:block}
}
@media (max-width:1180px){
  .layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px}
}
@media (max-width:1023px){
  .nav-inner{grid-template-columns:auto 1fr auto;height:64px;gap:12px}
  .nav-side{display:none}
  .nav-toggle{display:inline-flex}
  .nav-logo{justify-self:center}
  .nav-right .nav-link{display:none}
  .nav-right{gap:8px}
  .nav-cta{height:38px;padding:0 16px;font-size:13.5px}
  .layout{grid-template-columns:minmax(0,1fr)}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .sidebar > *{flex:1 1 300px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lead-wrap{grid-template-columns:1fr;padding:36px;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .article-hero{padding:48px 0 36px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .article-main{padding-bottom:64px}
  .cover-wrap{margin-bottom:32px;border-radius:20px}
  .article-body{font-size:15.5px;line-height:1.9}
  .article-body h2{margin-top:34px}
  .card-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .align-right{text-align:left}
  .related{padding-bottom:64px}
  .lead-wrap{padding:24px}
  .form-card{padding:24px}
  .sidebar{flex-direction:column}
  .sidebar > *{flex:1 1 auto}
  .modal{border-radius:20px;padding:24px}
  .site-footer{padding-top:56px}
}
@media (max-width:520px){
  .btn{width:100%;height:52px}
  .article-meta{font-size:13px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .post-card .body{padding:18px}
}

/* roulang page: category1 */
:root{
  --brand-600:#FF5A1F;
  --brand-500:#FF7A3D;
  --brand-700:#E04408;
  --accent:#0FA97F;
  --sun:#FFC53D;
  --dark-900:#14161A;
  --dark-800:#1E2229;
  --bg:#FFF9F5;
  --bg-alt:#F6F1EB;
  --line:#EFE7E0;
  --border:#E4DAD2;
  --text:#14161A;
  --body-c:#4A4540;
  --muted:#6B6560;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --sh-1:0 2px 8px rgba(20,22,26,.05);
  --sh-2:0 12px 32px rgba(20,22,26,.08);
  --sh-3:0 20px 48px rgba(224,68,8,.16);
  --grad:linear-gradient(135deg,#FF5A1F,#FF9E2C);
  --ease:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--body-c);
  background:var(--bg);
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.3}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25}
h2{font-size:clamp(22px,2.6vw,32px)}
h3{font-size:18px;line-height:1.4;font-weight:600}
p{margin:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:8px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,245,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:20px;
  height:76px;
  transition:height var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px}
.header-left{display:flex;align-items:center;gap:8px;justify-self:start;min-width:0}
.header-right{display:flex;align-items:center;gap:12px;justify-self:end}
.nav-side{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14.5px;
  color:#3E3A36;
  border-radius:999px;
  white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:rgba(255,90,31,.07)}
.nav-link.active,
.nav-link[aria-current="page"]{color:var(--brand-700);font-weight:600}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  border-radius:2px;background:var(--grad);
}
.nav-logo{display:flex;align-items:center;gap:10px;justify-self:center}
.logo-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad);
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(224,68,8,.22);
}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.2px}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--border);
  background:#fff;
  place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);position:relative}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--bg);
  padding:8px 0 20px;
}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 24px;
  font-size:15px;color:#3E3A36;
  border-bottom:1px solid var(--line);
}
.mobile-drawer a[aria-current="page"]{color:var(--brand-700);font-weight:600}
body.drawer-open .mobile-drawer{display:block}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;height:48px;padding:0 26px;
  border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease),background var(--ease),filter var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-3)}
.btn-primary:hover{filter:brightness(1.04);transform:translateY(-2px);color:#fff}
.btn-ghost{background:#fff;border-color:var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-700);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand-700);
}
.btn-text::after{content:"→";transition:transform var(--ease)}
.btn-text:hover::after{transform:translateX(4px)}
.btn-block{width:100%}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{
  background:var(--dark-900);
  color:rgba(255,255,255,.78);
  padding:88px 0;
  position:relative;
  overflow:hidden;
}
.section-dark::before{
  content:"";position:absolute;inset:-20% -10% auto auto;
  width:640px;height:640px;
  background:radial-gradient(circle,rgba(255,90,31,.16),transparent 65%);
  pointer-events:none;
}
.section-head{max-width:760px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;margin-bottom:18px;
  border-radius:999px;
  background:rgba(255,90,31,.08);
  color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-600)}
.section-head p{margin-top:16px;font-size:16px;color:var(--muted);max-width:660px}
.section-head.center p{margin-left:auto;margin-right:auto}

/* ---------- 首屏 ---------- */
.page-hero{
  padding:48px 0 72px;
  background:
    radial-gradient(900px 420px at 88% 0%, rgba(255,90,31,.12), transparent 62%),
    radial-gradient(600px 300px at 0% 100%, rgba(15,169,127,.08), transparent 60%),
    var(--bg);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb span.sep{opacity:.5}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.hero-copy h1{letter-spacing:-.01em}
.hero-copy h1 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:20px;font-size:16px;line-height:1.85;color:#5C5651;max-width:580px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-figure{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh-2);aspect-ratio:16/11;
  background:#fff;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--grad);
}
.float-badge{
  position:absolute;right:16px;bottom:16px;
  background:#fff;border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--sh-2);
  border:1px solid var(--line);
  min-width:172px;
}
.float-badge b{display:block;font-size:24px;line-height:1.2;color:var(--brand-700)}
.float-badge span{font-size:12.5px;color:var(--muted);line-height:1.5;display:block;margin-top:4px}

/* ---------- 徽章组 ---------- */
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  background:rgba(255,90,31,.08);
  color:var(--brand-700);font-size:13.5px;font-weight:600;
}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--accent);font-style:normal}
.section-dark .badge{background:rgba(255,255,255,.08);color:#fff}
.section-dark .badge i{background:var(--accent)}

/* ---------- 卡片 ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28)}

/* ---------- 需求痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.pain-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;border-left:3px solid var(--brand-600);
  transition:transform var(--ease),box-shadow var(--ease);
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.pain-num{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-600)}
.pain-card h3{margin-top:10px}
.pain-card p{margin-top:12px;font-size:15px;color:var(--muted)}

/* ---------- 左右交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:88px}
.split-media{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2);position:relative}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-media::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:linear-gradient(90deg,var(--brand-600),var(--sun))}
.split.reverse .split-media{order:2}
.split-body h2{margin-bottom:16px}
.split-body > p{font-size:15.5px;color:var(--muted)}
.feature-list{margin-top:24px;display:grid;gap:14px}
.feature-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15.5px;color:#3E3A36;
  padding:14px 18px;border-radius:var(--r-sm);
  background:#fff;border:1px solid var(--line);
}
.feature-list li::before{
  content:"✓";flex:0 0 22px;height:22px;margin-top:2px;
  display:grid;place-items:center;border-radius:50%;
  background:rgba(15,169,127,.12);color:var(--accent);
  font-size:12px;font-weight:700;
}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;position:relative}
.step{position:relative;padding-top:20px}
.step::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;border-radius:3px;
  background:rgba(255,90,31,.18);
}
.step:first-child::before{background:var(--grad)}
.step-num{
  display:inline-grid;place-items:center;
  width:38px;height:38px;border-radius:999px;
  background:rgba(255,90,31,.1);color:var(--brand-700);
  font-weight:700;font-size:15px;margin-bottom:14px;
}
.step h3{font-size:17px}
.step p{margin-top:10px;font-size:14.5px;color:var(--muted)}

/* ---------- 推荐卡 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28)}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease}
.rec-card:hover .rec-thumb img{transform:scale(1.04)}
.rec-tag{
  position:absolute;left:14px;top:14px;
  padding:5px 12px;border-radius:999px;
  background:rgba(20,22,26,.72);color:#fff;
  font-size:12px;font-weight:600;backdrop-filter:blur(4px);
}
.rec-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.rec-body h3{font-size:17.5px}
.rec-body p{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-foot{margin-top:auto;padding-top:4px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color var(--ease),background var(--ease);
}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  width:26px;height:26px;display:grid;place-items:center;
  border-radius:50%;background:rgba(255,90,31,.1);color:var(--brand-700);
  font-size:16px;font-weight:700;line-height:1;
  transition:transform var(--ease);
}
.faq-item[open]{border-color:rgba(255,90,31,.28);background:rgba(255,90,31,.03);border-left:3px solid var(--brand-600)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px 22px;font-size:15px;color:var(--muted);max-width:760px}

/* ---------- CTA 表单 ---------- */
.cta-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:start;position:relative;z-index:1}
.cta-copy h2{color:#fff}
.cta-copy p{margin-top:18px;font-size:15.5px;color:rgba(255,255,255,.72);max-width:480px}
.cta-points{margin-top:28px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.82)}
.cta-points li::before{content:"";flex:0 0 6px;height:6px;margin-top:11px;border-radius:50%;background:var(--accent)}
.form-card{
  background:#fff;color:var(--text);
  border-radius:24px;padding:32px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-note{font-size:13.5px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:8px}
.field input,.field textarea{
  width:100%;padding:13px 14px;
  border:1px solid var(--border);border-radius:var(--r-sm);
  background:#fff;font-size:15px;line-height:1.6;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);
  box-shadow:0 0 0 4px rgba(255,90,31,.15);
}
.field input::placeholder,.field textarea::placeholder{color:#A9A29B}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);margin:4px 0 20px}
.consent input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand-600);flex:0 0 auto}
.consent a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.form-tip{
  display:none;margin-top:14px;padding:12px 16px;border-radius:var(--r-sm);
  background:rgba(15,169,127,.1);color:#0B7B5C;font-size:14px;
}
.form-tip.show{display:block}

/* ---------- 悬浮咨询 ---------- */
.float-consult{
  display:none;
  position:fixed;right:24px;bottom:24px;z-index:70;
  align-items:center;gap:10px;
  height:52px;padding:0 22px;border-radius:999px;
  background:var(--grad);color:#fff;font-weight:600;font-size:15px;
  box-shadow:var(--sh-3);
  transition:transform var(--ease),filter var(--ease);
}
.float-consult:hover{transform:translateY(-2px);filter:brightness(1.04)}
.modal-overlay{
  display:none;position:fixed;inset:0;z-index:90;
  background:rgba(20,22,26,.5);
  padding:24px;
}
.modal-overlay.open{display:flex;align-items:center;justify-content:center}
.modal{
  position:relative;width:100%;max-width:480px;
  background:#fff;border-radius:24px;padding:32px;
  box-shadow:0 24px 60px rgba(20,22,26,.24);
  max-height:90vh;overflow:auto;
}
.modal h3{font-size:20px}
.modal p.modal-sub{margin-top:8px;font-size:14px;color:var(--muted)}
.modal-close{
  position:absolute;right:16px;top:16px;
  width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--bg-alt);color:var(--muted);font-size:18px;line-height:1;
  transition:background var(--ease),color var(--ease);
}
.modal-close:hover{background:rgba(255,90,31,.12);color:var(--brand-700)}
.modal-contact{
  margin-top:18px;padding:16px 18px;border-radius:var(--r-md);
  background:var(--bg-alt);font-size:14px;color:var(--muted);
}
.modal-contact b{color:var(--text)}
.modal-contact a{color:var(--brand-700);font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark-900);
  color:rgba(255,255,255,.62);
  padding:72px 0 28px;
  font-size:14.5px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand .nav-logo{justify-self:start;margin-bottom:18px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);max-width:320px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col a{color:rgba(255,255,255,.62);font-size:14.5px}
.footer-col a:hover{color:var(--brand-500)}
.footer-col p{font-size:14px;line-height:1.8;margin-bottom:14px}
.footer-col p b{color:#fff;font-weight:600;display:block;margin-bottom:2px}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .container{padding:0 24px}
}
@media (max-width:1023px){
  .nav-side{display:none}
  .header-inner{grid-template-columns:44px 1fr auto;height:68px}
  .nav-toggle{display:grid}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-figure{aspect-ratio:16/10}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .split{grid-template-columns:1fr;gap:32px}
  .split.reverse .split-media{order:0}
  .split + .split{margin-top:64px}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px}
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:60px 0}
  .page-hero{padding:32px 0 56px}
  .pain-grid{grid-template-columns:1fr}
  .rec-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{padding-top:16px}
  .badge-row{gap:10px}
  .hero-actions .btn{width:100%}
  .form-card{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  body{font-size:15.5px}
  .nav-cta{height:36px;padding:0 14px;font-size:13.5px}
  h1{font-size:clamp(25px,7vw,32px)}
  .float-badge{right:12px;bottom:12px;padding:12px 14px;min-width:150px}
  .float-badge b{font-size:20px}
  .card,.pain-card{padding:22px}
  .modal{padding:24px;border-radius:20px}
  .modal-overlay.open{align-items:flex-end;padding:0}
  .modal{border-radius:24px 24px 0 0;max-height:88vh}
}
@media (min-width:1024px){
  .float-consult{display:inline-flex}
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --brand-600:#FF5A1F;
  --brand-500:#FF7A3D;
  --brand-700:#E04408;
  --accent:#0FA97F;
  --sun:#FFC53D;
  --dark-900:#14161A;
  --dark-800:#1E2229;
  --bg:#FFF9F5;
  --bg-alt:#F6F1EB;
  --line:#EFE7E0;
  --line-strong:#E4DAD2;
  --ink:#14161A;
  --ink-2:#4A4F58;
  --ink-3:#8A8F98;
  --grad:linear-gradient(135deg,#FF5A1F,#FF9E2C);
  --sh-1:0 2px 8px rgba(20,22,26,.05);
  --sh-2:0 12px 32px rgba(20,22,26,.08);
  --sh-3:0 20px 48px rgba(224,68,8,.16);
  --r-card:20px;
  --r-lg:28px;
  --r-input:12px;
  --r-pill:999px;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
}
/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--brand-600);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--ink);}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(255,90,31,.18);}
/* ===== 容器 ===== */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-700);text-transform:uppercase;
  background:rgba(255,90,31,.08);
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-600);}
h2.section-title{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em;}
.section-desc{margin-top:16px;color:var(--ink-2);font-size:16px;line-height:1.9;}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform 220ms ease,box-shadow 220ms ease,background 220ms ease,color 220ms ease,border-color 220ms ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-3);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);}
.btn-ghost{border:1px solid var(--line-strong);color:var(--ink);background:#fff;}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-700);font-size:14px;transition:transform 220ms ease;}
.link-arrow::after{content:"→";transition:transform 220ms ease;}
.link-arrow:hover{color:var(--brand-600);}
.link-arrow:hover::after{transform:translateX(4px);}
/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,249,245,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  height:76px;transition:height 220ms ease;
}
.site-header.is-scrolled .header-inner{height:64px;}
.nav-side{display:flex;align-items:center;gap:22px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color 220ms ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--grad);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform 220ms ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-logo{display:inline-flex;align-items:center;gap:10px;padding:0 32px;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(224,68,8,.24);flex:none;
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--ink);white-space:nowrap;}
.nav-cta{margin-left:8px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line-strong);border-radius:12px;
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:0;z-index:79;
  background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
  padding:88px 20px 20px;transform:translateY(-102%);transition:transform 260ms ease;
}
.mobile-drawer.is-open{transform:translateY(0);}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;border-bottom:1px solid var(--line);font-size:15px;font-weight:500;color:var(--ink-2);
}
.mobile-drawer a.is-active{color:var(--brand-700);font-weight:600;}
.mobile-drawer .drawer-cta{margin-top:16px;width:100%;}
/* ===== 面包屑 ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb span.sep{color:var(--line-strong);}
/* ===== 页面 Hero ===== */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFF4EC 0%,#FFF9F5 78%);
  padding:56px 0 88px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;right:-120px;top:-140px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.16),rgba(255,90,31,0) 70%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em;
  margin:20px 0 0;
}
.h1-tag{
  display:inline-block;margin-top:14px;font-size:14px;font-weight:600;letter-spacing:.02em;
  color:var(--brand-700);background:rgba(255,90,31,.08);
  border-radius:var(--r-pill);padding:6px 16px;
}
.hero-lead{margin-top:22px;color:var(--ink-2);font-size:16px;line-height:1.9;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);
  border-bottom:2px solid var(--brand-600);box-shadow:var(--sh-2);
}
.hero-badge{
  position:absolute;right:-12px;bottom:-22px;
  background:#fff;border-radius:18px;box-shadow:var(--sh-2);border:1px solid var(--line);
  padding:16px 20px;display:flex;align-items:center;gap:14px;min-width:220px;
}
.hero-badge .num{font-size:30px;font-weight:700;color:var(--brand-700);line-height:1;}
.hero-badge .txt{font-size:13px;color:var(--ink-3);line-height:1.6;}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none;}
/* ===== 右图左文版块 ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split + .split{margin-top:72px;}
.split-copy h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:14px;}
.split-copy p{color:var(--ink-2);font-size:16px;line-height:1.9;}
.split-copy .point-list{margin-top:22px;display:grid;gap:12px;}
.point-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.point-list li::before{
  content:"";flex:none;width:18px;height:18px;margin-top:6px;border-radius:50%;
  background:rgba(15,169,127,.12);
  box-shadow:inset 0 0 0 2px rgba(15,169,127,.35);
}
.split-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.split-figure{position:relative;}
.split-figure::after{
  content:"";position:absolute;left:-14px;top:-14px;width:64px;height:64px;border-radius:18px;
  background:var(--grad);opacity:.14;
}
.split-note{
  margin-top:16px;font-size:13px;color:var(--ink-3);
  border-left:3px solid var(--brand-600);padding-left:12px;
}
/* ===== 规格 / 参数列表卡 ===== */
.spec-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.spec-head{
  padding:26px 32px;border-bottom:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  background:var(--bg-alt);
}
.spec-head h3{font-size:18px;font-weight:600;}
.spec-head .tag{
  font-size:13px;font-weight:600;color:var(--accent);background:rgba(15,169,127,.1);
  border-radius:var(--r-pill);padding:5px 14px;
}
.spec-list{padding:8px 32px 24px;}
.spec-row{
  display:grid;grid-template-columns:220px 1fr;gap:24px;
  padding:16px 0;border-bottom:1px solid var(--line);align-items:baseline;
}
.spec-row:last-child{border-bottom:0;}
.spec-row dt{font-size:14px;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:8px;}
.spec-row dt::before{
  content:"";width:3px;height:14px;border-radius:2px;background:var(--grad);flex:none;
}
.spec-row dd{font-size:15px;color:var(--ink-2);line-height:1.8;}
/* ===== 场景网格 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;transition:transform 220ms ease,box-shadow 220ms ease,border-color 220ms ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.scene-num{font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:.1em;}
.scene-card h3{font-size:17px;font-weight:600;margin:12px 0 10px;line-height:1.45;}
.scene-card p{font-size:14px;color:var(--ink-2);line-height:1.85;}
/* ===== 深色数据区 ===== */
.stats-band{
  background:var(--dark-900);color:#fff;position:relative;overflow:hidden;padding:88px 0;
}
.stats-band::before{
  content:"";position:absolute;left:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.28),rgba(255,90,31,0) 70%);
}
.stats-band .container{position:relative;}
.stats-band h2{color:#fff;}
.stats-band .section-desc{color:rgba(255,255,255,.72);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.stat-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-card);padding:24px;
}
.stat-card .num{font-size:40px;font-weight:700;line-height:1.1;color:#fff;}
.stat-card .num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--sun);}
.stat-card .label{margin-top:12px;font-size:13px;color:rgba(255,255,255,.7);line-height:1.7;display:flex;gap:8px;}
.stat-card .label::before{
  content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:8px;
}
/* ===== FAQ ===== */
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  transition:border-color 220ms ease,box-shadow 220ms ease;
}
.faq-item[open]{border-color:rgba(255,90,31,.28);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:16px;font-weight:600;
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--brand-600);line-height:1;
  transition:transform 220ms ease;flex:none;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item[open] summary{color:var(--brand-700);}
.faq-body{
  padding:0 24px 22px;color:var(--ink-2);font-size:15px;line-height:1.9;
  border-left:3px solid var(--brand-600);margin-left:24px;padding-left:16px;
}
/* ===== 相关推荐 ===== */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform 220ms ease,box-shadow 220ms ease,border-color 220ms ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.rec-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line);}
.rec-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-body .tag{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand-700);
  background:rgba(255,90,31,.08);border-radius:var(--r-pill);padding:4px 12px;
}
.rec-body h3{font-size:17px;font-weight:600;line-height:1.5;}
.rec-body p{font-size:14px;color:var(--ink-2);line-height:1.85;flex:1;}
/* ===== CTA 表单 ===== */
.cta-band{background:var(--bg-alt);border-top:1px solid var(--line);}
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start;}
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;}
.cta-copy p{margin-top:16px;color:var(--ink-2);line-height:1.9;}
.cta-points{margin-top:28px;display:grid;gap:14px;}
.cta-points li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);}
.cta-points li::before{
  content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--brand-600);margin-top:10px;
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--ink-3);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.field label em{color:var(--brand-600);font-style:normal;margin-left:4px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--r-input);
  padding:13px 16px;background:#fff;transition:border-color 220ms ease,box-shadow 220ms ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.8;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(255,90,31,.12);
}
.field input::placeholder,.field textarea::placeholder{color:#B4B8BE;}
.checkline{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-3);line-height:1.7;}
.checkline input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand-600);flex:none;}
.checkline a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.form-submit{width:100%;margin-top:22px;}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-3);line-height:1.7;}
/* ===== 页脚 ===== */
.site-footer{background:var(--dark-900);color:rgba(255,255,255,.72);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand .nav-logo{padding:0;margin-bottom:18px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li a{font-size:14px;color:rgba(255,255,255,.66);transition:color 220ms ease;}
.footer-col li a:hover{color:var(--brand-500);}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin-bottom:12px;}
.footer-col p b{color:#fff;font-weight:600;}
.footer-col p a{color:rgba(255,255,255,.8);}
.footer-col p a:hover{color:var(--brand-500);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
/* ===== 悬浮咨询 ===== */
.float-consult{
  position:fixed;right:28px;bottom:28px;z-index:70;
  height:52px;padding:0 24px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-weight:600;font-size:15px;
  display:none;align-items:center;gap:8px;box-shadow:var(--sh-3);
  transition:transform 220ms ease,filter 220ms ease;
}
.float-consult:hover{transform:translateY(-2px);filter:brightness(1.04);color:#fff;}
.modal-mask{
  position:fixed;inset:0;background:rgba(20,22,26,.5);z-index:90;
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-mask.is-open{display:flex;}
.modal-box{
  position:relative;width:100%;max-width:480px;background:#fff;border-radius:24px;
  padding:32px;box-shadow:var(--sh-2);
}
.modal-box h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.modal-box .form-hint{font-size:13px;color:var(--ink-3);margin-bottom:20px;}
.modal-close{
  position:absolute;right:18px;top:18px;width:34px;height:34px;border-radius:50%;
  background:var(--bg-alt);color:var(--ink-2);font-size:18px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.modal-close:hover{background:rgba(255,90,31,.12);color:var(--brand-700);}
/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{max-width:1140px;}
}
@media (max-width:1023px){
  .nav-side{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-drawer{display:block;}
  .header-inner{grid-template-columns:auto 1fr auto;height:64px;}
  .nav-logo{padding:0 12px;justify-self:center;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split + .split{margin-top:56px;}
  .split-figure{order:-1;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .faq-list{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
  .section{padding:72px 0;}
  .float-consult{display:inline-flex;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  body{font-size:15.5px;}
  .section{padding:56px 0;}
  .page-hero{padding:40px 0 64px;}
  .hero-badge{position:static;margin-top:16px;width:100%;}
  .hero-actions .btn{width:100%;}
  .btn{height:52px;}
  .spec-head{padding:20px;}
  .spec-list{padding:8px 20px 20px;}
  .spec-row{grid-template-columns:1fr;gap:6px;}
  .scene-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .form-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .stats-band{padding:64px 0;}
  .modal-mask{align-items:flex-end;padding:0;}
  .modal-box{max-width:100%;border-radius:24px 24px 0 0;max-height:88vh;overflow:auto;}
  .float-consult{right:16px;bottom:16px;height:48px;padding:0 18px;font-size:14px;}
}
@media (max-width:575px){
  .nav-logo{padding:0 6px;}
  .logo-text{font-size:17px;}
  .hero-grid{gap:28px;}
  .split-copy h3{font-size:18px;}
}

/* roulang page: category3 */
:root{
  --brand-600:#FF5A1F;
  --brand-500:#FF7A3D;
  --brand-700:#E04408;
  --accent:#0FA97F;
  --sun:#FFC53D;
  --dark-900:#14161A;
  --dark-800:#1E2229;
  --bg:#FFF9F5;
  --bg-alt:#F6F1EB;
  --line:#EFE7E0;
  --line-2:#E4DAD2;
  --text:#1B1D22;
  --muted:#6B6A67;
  --white:#fff;
  --r-card:20px;
  --r-lg:26px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(20,22,26,.05);
  --sh-2:0 12px 32px rgba(20,22,26,.08);
  --sh-3:0 20px 48px rgba(224,68,8,.16);
  --grad:linear-gradient(135deg,#FF5A1F,#FF9E2C);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--brand-700);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em;}
h3{font-size:19px;line-height:1.4;font-weight:600;}
p{color:var(--muted);}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section.alt{background:var(--bg-alt);}
.section-head{max-width:740px;margin-bottom:44px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,90,31,.08);
  color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-600);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform 220ms ease,box-shadow 220ms ease,background 220ms ease,color 220ms ease,border-color 220ms ease,filter 220ms ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 22px rgba(255,90,31,.22);}
.btn-primary:hover{color:#fff;filter:brightness(1.05);transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-700);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(255,90,31,.35);
}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);transition:gap 220ms ease;}
.link-more:hover{gap:12px;color:var(--brand-700);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,249,245,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 260ms ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  height:76px;transition:height 260ms ease;
}
.site-header.is-scrolled .nav-wrap{height:64px;}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;gap:20px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:#3A3A3D;
  padding:6px 2px;transition:color 220ms ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform 220ms ease;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-logo{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.nav-logo:hover{color:var(--text);}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:0 6px 14px rgba(255,90,31,.28);
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text);}
.nav-toggle{
  display:none;order:-1;width:42px;height:42px;border-radius:12px;
  background:#fff;border:1px solid var(--line-2);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform 220ms ease,opacity 220ms ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:10px 20px 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer nav{display:flex;flex-direction:column;}
.mobile-drawer a{
  display:flex;align-items:center;min-height:48px;
  border-bottom:1px solid var(--line);font-size:15px;font-weight:500;
}
.mobile-drawer a.is-active{color:var(--brand-700);font-weight:600;}
.mobile-drawer .btn{margin-top:16px;border-bottom:none;justify-content:center;color:#fff;}
.mobile-drawer .btn:hover{color:#fff;}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:72px 0 88px;
  background:
    radial-gradient(880px 420px at 88% -10%,rgba(255,90,31,.14),transparent 62%),
    linear-gradient(180deg,#FFF9F5 0%,#FDF3EC 100%);
  border-bottom:1px solid var(--line);
}
.hero-wave{position:absolute;left:0;right:0;bottom:-1px;line-height:0;opacity:.5;pointer-events:none;}
.hero-wave svg{width:100%;height:70px;display:block;}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);
  gap:56px;align-items:center;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb span.sep{opacity:.5;}
.breadcrumb .current{color:var(--text);font-weight:600;}
.hero-copy h1{margin-bottom:18px;}
.hero-lead{font-size:17px;line-height:1.9;color:#54524F;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:28px;}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14px;color:#45433F;}
.hero-points li::before{
  content:"";width:8px;height:8px;border-radius:50%;
  background:var(--accent);flex:0 0 auto;
}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.hero-badge{
  position:absolute;right:-8px;bottom:-22px;
  background:#fff;border-radius:16px;padding:16px 20px;
  box-shadow:var(--sh-2);border:1px solid var(--line);
  min-width:196px;
}
.hero-badge b{display:block;font-size:30px;font-weight:700;color:var(--brand-700);line-height:1.2;}
.hero-badge span{font-size:13px;color:var(--muted);}

/* ============ 服务内容错落卡 ============ */
.service-grid{display:grid;grid-template-columns:1.24fr 1fr;gap:24px;align-items:stretch;}
.service-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform 220ms ease,box-shadow 220ms ease,border-color 220ms ease;
}
.service-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.service-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:2px solid var(--brand-600);}
.service-main .body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.service-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.service-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;
  transition:transform 220ms ease,box-shadow 220ms ease,border-color 220ms ease;
}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.service-card .tag{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand-700);
  background:rgba(255,90,31,.08);padding:4px 12px;border-radius:999px;
}
.check-list{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.check-list li{position:relative;padding-left:24px;font-size:14.5px;color:#4C4A46;line-height:1.75;}
.check-list li::before{
  content:"";position:absolute;left:2px;top:9px;width:10px;height:10px;border-radius:3px;
  background:rgba(15,169,127,.16);border:2px solid var(--accent);
}

/* ============ 阶梯时间轴 ============ */
.step-section{background:var(--bg-alt);}
.timeline{display:flex;flex-direction:column;gap:18px;}
.tl-item{
  position:relative;display:grid;grid-template-columns:60px minmax(0,1fr);gap:20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 28px;box-shadow:var(--sh-1);
  transition:transform 220ms ease,box-shadow 220ms ease,border-color 220ms ease;
}
.tl-item::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:0 3px 3px 0;
  background:var(--grad);opacity:0;transition:opacity 220ms ease;
}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.tl-item:hover::before{opacity:1;}
.tl-item:nth-child(2){margin-left:22px;}
.tl-item:nth-child(3){margin-left:44px;}
.tl-item:nth-child(4){margin-left:66px;}
.tl-item:nth-child(5){margin-left:88px;}
.tl-item:nth-child(6){margin-left:110px;}
.tl-num{
  width:52px;height:52px;border-radius:50%;
  background:rgba(255,90,31,.09);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;letter-spacing:.02em;
}
.tl-body h3{margin-bottom:8px;}
.tl-body p{font-size:15px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}
.tl-meta span{
  font-size:13px;color:#4C4A46;background:var(--bg-alt);
  border:1px solid var(--line);border-radius:999px;padding:3px 12px;
}

/* ============ 适用对象 ============ */
.audience-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.audience-card{
  display:grid;grid-template-columns:minmax(0,1fr) 140px;gap:20px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform 220ms ease,box-shadow 220ms ease,border-color 220ms ease;
}
.audience-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.audience-card img{width:140px;height:104px;object-fit:cover;border-radius:16px;border:1px solid var(--line);}
.audience-card h3{margin-bottom:8px;}
.audience-card p{font-size:14.5px;}

/* ============ 数据区 ============ */
.metrics{
  background:var(--dark-900);color:#fff;position:relative;overflow:hidden;
  padding:88px 0;
}
.metrics::after{
  content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.34),rgba(255,90,31,0) 66%);
  pointer-events:none;
}
.metrics .section-head{position:relative;z-index:2;}
.metrics h2{color:#fff;}
.metrics .section-head p{color:#B9B6B1;}
.metric-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.metric-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-card);padding:26px 24px;
  transition:transform 220ms ease,background 220ms ease,border-color 220ms ease;
}
.metric-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.1);border-color:rgba(255,90,31,.4);}
.metric-card b{display:block;font-size:clamp(34px,3.6vw,50px);font-weight:700;line-height:1.15;color:#fff;letter-spacing:-.02em;}
.metric-card b em{font-style:normal;font-size:.5em;margin-left:4px;color:var(--sun);}
.metric-card span{display:block;margin-top:10px;font-size:13px;color:#B9B6B1;position:relative;padding-left:14px;}
.metric-card span::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--accent);}
.metrics-note{margin-top:26px;font-size:14px;color:#9C9995;position:relative;z-index:2;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color 220ms ease,box-shadow 220ms ease;
}
.faq-item:hover{border-color:rgba(255,90,31,.28);box-shadow:var(--sh-2);}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:20px 56px 20px 24px;font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-600);line-height:1;
  transition:transform 240ms ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-item[open] summary{color:var(--brand-700);}
.faq-item[open]{position:relative;background:linear-gradient(180deg,rgba(255,90,31,.05),#fff 60%);}
.faq-item[open]::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--grad);}
.faq-item .answer{padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ============ 相关推荐 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform 220ms ease,box-shadow 220ms ease,border-color 220ms ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28);}
.rec-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:2px solid var(--brand-600);}
.rec-card .body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-card .body p{font-size:14.5px;line-height:1.8;}

/* ============ CTA 表单 ============ */
.cta-section{
  background:
    radial-gradient(760px 380px at 8% 0%,rgba(255,90,31,.12),transparent 62%),
    var(--bg-alt);
  border-top:1px solid var(--line);
}
.cta-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:start;}
.cta-copy h2{margin-bottom:16px;}
.cta-list{display:flex;flex-direction:column;gap:14px;margin-top:26px;}
.cta-list li{position:relative;padding-left:26px;font-size:15px;color:#4C4A46;}
.cta-list li::before{
  content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border-radius:3px;
  background:rgba(255,90,31,.14);border:2px solid var(--brand-600);
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-2);
}
.form-card h3{margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:#3A3A3D;}
.field input[type="text"],
.field input[type="tel"],
.field textarea{
  width:100%;border:1px solid var(--line-2);border-radius:var(--r-sm);
  padding:13px 15px;font-size:15px;font-family:inherit;color:var(--text);
  background:#FFFDFB;transition:border-color 200ms ease,box-shadow 200ms ease,background 200ms ease;
}
.field textarea{min-height:118px;resize:vertical;line-height:1.75;}
.field input::placeholder,.field textarea::placeholder{color:#A9A5A0;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);background:#fff;
  box-shadow:0 0 0 4px rgba(255,90,31,.14);
}
.privacy{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);line-height:1.7;margin:6px 0 20px;}
.privacy input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand-600);flex:0 0 auto;}
.privacy a{color:var(--brand-700);text-decoration:underline;}
.form-card .btn{width:100%;}
.form-success{
  margin-top:16px;font-size:14px;color:#0B7A5C;
  background:rgba(15,169,127,.1);border:1px solid rgba(15,169,127,.3);
  border-radius:var(--r-sm);padding:12px 16px;
}
.form-note{margin-top:14px;font-size:13px;color:var(--muted);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark-900);color:#C9C6C1;padding:72px 0 28px;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand .nav-logo{margin-bottom:18px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{color:#9C9995;font-size:14px;line-height:1.85;}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:#C9C6C1;font-size:14px;transition:color 200ms ease;}
.footer-col a:hover{color:var(--brand-500);}
.footer-col p{color:#9C9995;font-size:14px;margin-bottom:14px;line-height:1.8;}
.footer-col p b{color:#EFEDEA;font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#8A8783;
}

/* ============ 悬浮咨询 ============ */
.float-consult{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  height:50px;padding:0 24px;border-radius:999px;
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 14px 30px rgba(224,68,8,.3);
  transition:transform 220ms ease,box-shadow 220ms ease,filter 220ms ease;
}
.float-consult:hover{color:#fff;transform:translateY(-3px);filter:brightness(1.05);box-shadow:var(--sh-3);}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-side{gap:18px;}
  .nav-right{gap:14px;}
  .nav-link{font-size:14px;}
}
@media (max-width:1023px){
  .nav-wrap{grid-template-columns:auto 1fr auto;height:64px;}
  .site-header.is-scrolled .nav-wrap{height:60px;}
  .nav-toggle{display:flex;}
  .nav-left{display:none;}
  .nav-right{gap:10px;}
  .nav-right .nav-link{display:none;}
  .nav-logo{justify-self:center;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual{order:2;}
  .hero-badge{right:12px;bottom:-18px;}
  .service-grid{grid-template-columns:1fr;}
  .service-side{grid-template-rows:auto;grid-template-columns:repeat(2,minmax(0,1fr));}
  .tl-item:nth-child(n){margin-left:0;}
  .audience-grid{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
  .float-consult{display:none;}
}
@media (max-width:767px){
  .section{padding:64px 0;}
  .container{padding:0 20px;}
  .page-hero{padding:48px 0 64px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-points{gap:10px 18px;}
  .hero-points li{font-size:13.5px;}
  .service-side{grid-template-columns:1fr;}
  .tl-item{grid-template-columns:1fr;gap:14px;padding:22px;}
  .tl-num{width:46px;height:46px;}
  .faq-grid{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .audience-card{grid-template-columns:1fr;}
  .audience-card img{width:100%;height:170px;}
  .form-card{padding:24px 20px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  h1{font-size:27px;}
  .metric-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .metrics{padding:64px 0;}
  .logo-text{font-size:17px;}
  .btn{height:50px;}
}

/* roulang page: category4 */
:root{
  --brand-600:#FF5A1F;
  --brand-500:#FF7A3D;
  --brand-700:#E04408;
  --accent:#0FA97F;
  --sun:#FFC53D;
  --dark-900:#14161A;
  --dark-800:#1E2229;
  --bg:#FFF9F5;
  --bg-alt:#F6F1EB;
  --line:#EFE7E0;
  --line-2:#E4DAD2;
  --text:#14161A;
  --text-2:#575C63;
  --text-3:#8A8F97;
  --sh-1:0 2px 8px rgba(20,22,26,.05);
  --sh-2:0 12px 32px rgba(20,22,26,.08);
  --sh-3:0 20px 48px rgba(224,68,8,.16);
  --r-lg:28px;
  --r-card:20px;
  --r-md:16px;
  --r-sm:12px;
  --grad:linear-gradient(135deg,#FF5A1F,#FF9E2C);
  --t:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t),transform var(--t),box-shadow var(--t)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
strong,b{font-weight:700}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,249,245,.92);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid rgba(239,231,224,.9);
  transition:box-shadow var(--t),background-color var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,249,245,.97)}
.header-inner{
  position:relative;display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;gap:18px;height:76px;transition:height var(--t);
}
.site-header.is-scrolled .header-inner{height:64px}
.header-left{display:flex;align-items:center;justify-self:start;min-width:0}
.header-right{display:flex;align-items:center;gap:18px;justify-self:end}

.nav-side{display:flex;align-items:center;gap:24px}
.nav-link{position:relative;font-size:15px;color:#4A4E55;padding:6px 0;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}

.nav-logo{display:flex;align-items:center;gap:10px;justify-self:center}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;flex:0 0 auto;box-shadow:0 6px 16px rgba(224,68,8,.22);
}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.4px}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line-2);background:#fff;cursor:pointer;
  padding:0;place-items:center;flex:0 0 auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);margin:3px auto;transition:transform var(--t),opacity var(--t)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.mobile-drawer{
  display:none;background:#fff;border-top:1px solid var(--line);
  max-height:calc(100vh - 64px);overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;height:48px;padding:0 24px;
  border-bottom:1px solid var(--line);font-size:15px;color:#3B3F46;
}
.mobile-drawer a:hover{background:rgba(255,90,31,.05);color:var(--brand-700)}
.mobile-drawer a.is-active{color:var(--brand-700);font-weight:600;background:rgba(255,90,31,.06)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),border-color var(--t),color var(--t),filter var(--t);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(224,68,8,.2)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-700);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ===== 通用板块 ===== */
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.section--tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;letter-spacing:-.4px}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,90,31,.08);color:var(--brand-700);font-size:13px;font-weight:600;
  letter-spacing:.4px;margin-bottom:16px;
}
.eyebrow--dark{background:rgba(255,255,255,.08);color:#fff}

/* ===== 页面首屏 ===== */
.page-hero{
  position:relative;padding:52px 0 76px;border-bottom:1px solid var(--line);
  background:
    radial-gradient(880px 420px at 90% -10%, rgba(255,90,31,.12), transparent 68%),
    radial-gradient(620px 320px at -6% 20%, rgba(15,169,127,.08), transparent 70%),
    var(--bg-alt);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand-700)}
.page-hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.8px}
.h1-brand{
  display:inline-block;margin-left:12px;padding:2px 14px;border-radius:999px;
  background:rgba(255,90,31,.1);color:var(--brand-700);
  font-size:.6em;vertical-align:middle;letter-spacing:0;font-weight:600;
}
.hero-lead{margin-top:20px;max-width:560px;color:var(--text-2);font-size:17px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-2);
}
.hero-chip{
  position:absolute;left:-14px;bottom:22px;display:flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:999px;background:#fff;box-shadow:var(--sh-2);
  font-size:13px;color:var(--text-2);border:1px solid var(--line);
}
.hero-chip b{font-size:18px;color:var(--brand-700);font-weight:700}
.hero-chip i{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block}

/* ===== 器材品类网格 ===== */
.gear-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gear-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.gear-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28)}
.gear-card--wide{grid-column:span 2}
.gear-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);border-bottom:1px solid var(--line)}
.gear-card--wide .gear-media{aspect-ratio:21/9}
.gear-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease}
.gear-card:hover .gear-media img{transform:scale(1.04)}
.gear-badge{
  position:absolute;left:14px;top:14px;padding:4px 12px;border-radius:999px;
  background:rgba(20,22,26,.74);color:#fff;font-size:12px;line-height:1.7;letter-spacing:.3px;
}
.gear-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1}
.gear-body h3{font-size:18px;line-height:1.45;font-weight:600}
.gear-body>p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.8}
.gear-points{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);display:grid;gap:10px}
.gear-points li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text-2);line-height:1.7}
.gear-points li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;
  border-radius:50%;background:var(--accent);
}

/* ===== 选型与验收 ===== */
.spec-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:center}
.spec-media img{
  width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.spec-content h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;letter-spacing:-.4px}
.spec-content>p{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.9}
.spec-list{margin-top:28px;display:grid;gap:0}
.spec-row{display:grid;grid-template-columns:112px 1fr;gap:20px;padding:18px 0;border-top:1px solid var(--line)}
.spec-row:last-child{border-bottom:1px solid var(--line)}
.spec-key{font-size:14px;font-weight:600;color:var(--brand-700)}
.spec-val{font-size:15px;color:var(--text-2);line-height:1.8}

/* ===== 数据面板 ===== */
.stats-panel{
  position:relative;background:var(--dark-900);border-radius:var(--r-lg);
  padding:56px 48px;overflow:hidden;color:#fff;
}
.stats-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 320px at 85% 0%, rgba(255,90,31,.22), transparent 70%);
  pointer-events:none;
}
.stats-head{position:relative;max-width:560px}
.stats-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;letter-spacing:-.4px}
.stats-head p{margin-top:12px;color:rgba(255,255,255,.62);font-size:15px}
.stats-grid{
  position:relative;margin-top:40px;display:grid;
  grid-template-columns:repeat(4,1fr);gap:20px;
}
.stats-grid li{
  padding:22px 20px;border-radius:var(--r-md);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);
}
.stats-grid strong{display:block;font-size:40px;line-height:1.15;font-weight:700;color:#fff;letter-spacing:-.6px}
.stats-grid span{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,.6);line-height:1.7}
.stats-grid li::before{
  content:"";display:block;width:8px;height:8px;border-radius:50%;
  background:var(--accent);margin-bottom:16px;
}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:var(--line-2)}
.faq-item summary{
  position:relative;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;font-weight:400;line-height:1;
  color:var(--brand-600);transition:transform var(--t);
}
.faq-item[open]{border-color:rgba(255,90,31,.28);box-shadow:var(--sh-1)}
.faq-item[open] summary{background:rgba(255,90,31,.05)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  border-radius:0 3px 3px 0;background:var(--grad);
}
.faq-answer{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ===== 相关推荐 ===== */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.28)}
.related-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);border-bottom:1px solid var(--line)}
.related-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease}
.related-card:hover .related-media img{transform:scale(1.04)}
.related-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.related-body h3{font-size:17px;font-weight:600;line-height:1.5}
.related-body p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.8;flex:1}
.link-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--brand-700)}
.related-card:hover .link-arrow{transform:translateX(4px)}

/* ===== 表单 CTA ===== */
.cta-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;letter-spacing:-.4px}
.cta-copy>p{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.9}
.cta-points{margin-top:26px;display:grid;gap:12px}
.cta-points li{position:relative;padding-left:24px;font-size:15px;color:var(--text-2)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
  background:rgba(15,169,127,.14);border:2px solid var(--accent);box-sizing:border-box;
}
.inquiry-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-2);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
.field input,.field textarea{
  width:100%;padding:13px 16px;border-radius:var(--r-sm);
  border:1px solid var(--line-2);background:#FFFCFA;font-size:15px;line-height:1.7;
  transition:border-color var(--t),box-shadow var(--t),background-color var(--t);
}
.field textarea{resize:vertical;min-height:110px}
.field input::placeholder,.field textarea::placeholder{color:#A9AEB6}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);background:#fff;
  box-shadow:0 0 0 4px rgba(255,90,31,.12);
}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.75;margin:6px 0 20px}
.checkbox input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand-600);flex:0 0 auto}
.checkbox a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.form-tip{margin-top:14px;font-size:13px;min-height:20px;line-height:1.7}
.form-tip.is-error{color:#D93F0B}
.form-tip.is-ok{color:var(--accent)}
.privacy-note{
  margin-top:28px;font-size:13px;color:var(--text-3);line-height:1.85;
  padding:18px 22px;border-radius:var(--r-md);background:var(--bg-alt);border:1px solid var(--line);
}

/* ===== 悬浮咨询 ===== */
.float-consult{
  position:fixed;right:28px;bottom:28px;z-index:110;
  display:none;align-items:center;gap:8px;height:48px;padding:0 24px;
  border-radius:999px;background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-3);
}
.float-consult:hover{transform:translateY(-2px);filter:brightness(1.04)}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark-900);color:rgba(255,255,255,.72);padding:72px 0 28px}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .nav-logo{justify-self:start;margin-bottom:18px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.58);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col li a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-col li a:hover{color:var(--brand-500)}
.footer-col p{font-size:14px;line-height:1.85;margin-bottom:14px;color:rgba(255,255,255,.58)}
.footer-col p b{display:block;color:#fff;font-weight:600;margin-bottom:2px}
.footer-col p a{color:rgba(255,255,255,.72)}
.footer-col p a:hover{color:var(--brand-500)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:24px;font-size:13px;color:rgba(255,255,255,.45);line-height:1.8;
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:grid}
  .header-inner{height:64px;gap:12px}
  .site-header.is-scrolled .header-inner{height:60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media img{aspect-ratio:16/9}
  .hero-chip{left:12px;bottom:12px}
  .gear-grid{grid-template-columns:repeat(2,1fr)}
  .gear-card--wide{grid-column:span 2}
  .gear-card--wide .gear-media{aspect-ratio:16/9}
  .spec-wrap{grid-template-columns:1fr;gap:36px}
  .spec-media img{aspect-ratio:16/9}
  .stats-panel{padding:44px 32px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .cta-wrap{grid-template-columns:1fr;gap:32px}
  .section{padding:76px 0}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:60px 0}
  .section-head{margin-bottom:32px}
  .page-hero{padding:32px 0 56px}
  .hero-actions .btn{width:100%}
  .gear-grid{grid-template-columns:1fr}
  .gear-card--wide{grid-column:span 1}
  .faq-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .stats-panel{padding:36px 22px}
  .stats-grid strong{font-size:32px}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:16px 0}
  .inquiry-card{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .logo-text{font-size:16px}
  .btn{padding:0 20px}
}
@media (max-width:575px){
  .header-right .btn{height:38px;padding:0 16px;font-size:13.5px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stats-grid li{padding:18px 16px}
  .gear-body{padding:22px 20px 24px}
  .faq-item summary{padding:18px 20px;font-size:15px}
  .faq-answer{padding:0 20px 20px}
}
@media (min-width:1024px){
  .float-consult{display:inline-flex}
}