/* roulang page: index */
:root{
  --brand:#FF6A1A;
  --brand-hover:#E2540A;
  --brand-soft:#FFF1E7;
  --ink:#0F3B3A;
  --ink-2:#14514F;
  --accent:#FFD166;
  --bg:#F8F5F0;
  --card:#FFFFFF;
  --line:#E7E1D8;
  --text:#1A1F1E;
  --muted:#5C6B69;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(15,59,58,.06);
  --shadow-2:0 14px 30px -14px rgba(15,59,58,.22);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:#FFD9BF;color:#0F3B3A}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{margin-bottom:36px;max-width:760px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--brand-hover);margin-bottom:12px}
.eyebrow::before{content:'';width:6px;height:20px;border-radius:3px;background:var(--brand);display:inline-block}
h2.sec-title{font-size:clamp(23px,2.6vw,30px);line-height:1.3;font-weight:700;color:var(--ink)}
.sec-desc{margin-top:14px;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px -14px rgba(15,59,58,.35)}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:16px;min-height:72px;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-right{justify-content:flex-end}
.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:0 6px 14px -8px rgba(255,106,26,.9);
}
.brand-mark svg{width:19px;height:19px;fill:#FFFFFF}
.brand-text{
  font-size:17.5px;font-weight:700;color:var(--ink);letter-spacing:.02em;line-height:1.2;
}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink);padding:6px 2px;transition:color .2s ease;white-space:nowrap}
.nav-link:hover{color:var(--brand)}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{
  content:'';position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:8px 0 20px;
}
.mobile-panel.open{display:block}
.mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;padding:0 24px;font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.m-link.active{color:var(--brand);font-weight:600}
.mobile-panel .m-cta{margin:18px 24px 0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(255,106,26,.95)}
.btn-primary:hover{background:var(--brand-hover);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.textlink{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-hover);
}
.textlink i{font-size:12px;transition:transform .2s ease}
.textlink:hover i{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--brand-soft);color:var(--brand-hover);border:1px solid #FFDCC4;line-height:1.6;
}
.badge-ink{background:rgba(15,59,58,.08);color:var(--ink-2);border-color:rgba(15,59,58,.16)}
.badge-accent{background:#FFF6DE;color:#8A6100;border-color:#FFE6A8}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(140deg,#0F3B3A 0%,#14514F 58%,#0F3B3A 100%);
  padding:72px 0 84px;
}
.hero::before{
  content:'';position:absolute;left:38%;top:-30%;width:62%;height:160%;
  background:radial-gradient(closest-side,rgba(255,106,26,.12),rgba(255,106,26,0));
  transform:rotate(-14deg);pointer-events:none;
}
.hero::after{
  content:'';position:absolute;right:-8%;bottom:-40%;width:48%;height:110%;
  background:radial-gradient(closest-side,rgba(255,209,102,.10),rgba(255,209,102,0));
  transform:rotate(-10deg);pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);color:#FFE3D2;
}
.hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.6vw,46px);
  line-height:1.22;font-weight:700;letter-spacing:.01em;color:#fff;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.78);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:24px;margin-top:38px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14)}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75)}
.hero-trust li::before{content:'';width:8px;height:8px;border-radius:2px;background:var(--brand);flex:0 0 auto}
.hero-visual{position:relative}
.hero-visual > img{
  width:100%;height:340px;object-fit:cover;border-radius:var(--radius-img);
  border:1px solid rgba(255,255,255,.16);
}
.hero-float{
  position:absolute;left:-20px;bottom:-22px;
  display:flex;gap:12px;align-items:flex-start;
  width:min(320px,84%);
  background:#FFFFFF;border-radius:var(--radius-card);
  padding:14px;border:1px solid var(--line);
  box-shadow:0 18px 36px -18px rgba(6,26,25,.6);
}
.hero-float img{width:62px;height:62px;object-fit:cover;border-radius:12px;flex:0 0 auto}
.hero-float p{font-size:13px;line-height:1.65;color:var(--muted);margin-top:6px}

/* ---------- services ---------- */
.services-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.service-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 28px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.service-card:nth-child(even){margin-top:32px}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#F3C7A8}
.service-num{
  font-size:32px;font-weight:700;color:var(--brand);line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.service-card h3{font-size:19px;font-weight:600;color:var(--ink);margin-top:16px;line-height:1.45}
.service-card p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8}
.service-card .textlink{margin-top:18px}

/* ---------- stats ---------- */
.stats{background:var(--ink);color:#fff;padding:76px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{padding:6px 28px;border-left:1px solid rgba(255,255,255,.12)}
.stat-item:first-child{border-left:none;padding-left:0}
.stat-num{font-size:clamp(32px,4vw,44px);font-weight:700;line-height:1.05;font-variant-numeric:tabular-nums;color:#fff}
.stat-num span{font-size:18px;font-weight:600;margin-left:4px;color:var(--accent)}
.stat-label{margin-top:12px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}

/* ---------- cases ---------- */
.case-row{
  display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;
  padding:40px 0;border-top:1px solid var(--line);
}
.case-row:last-child{border-bottom:1px solid var(--line)}
.case-row.reverse .case-media{order:2}
.case-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);background:#F1ECE4}
.case-body h3{font-size:21px;font-weight:700;color:var(--ink);line-height:1.4;margin-top:14px}
.case-body p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.85}
.case-body .textlink{margin-top:18px}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start}
.plans-aside{position:sticky;top:104px}
.plan-list{border-top:1px solid var(--line)}
.plan-item{
  position:relative;display:flex;gap:22px;align-items:flex-start;
  padding:24px 0 24px 4px;border-bottom:1px solid var(--line);
  transition:padding-left .22s ease,background-color .22s ease;
}
.plan-item::before{
  content:'';position:absolute;left:0;top:22px;bottom:22px;width:3px;
  background:var(--brand);border-radius:3px;opacity:0;transition:opacity .22s ease;
}
.plan-item:hover{padding-left:24px;background:#FDF9F4}
.plan-item:hover::before{opacity:1}
.plan-index{font-size:15px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;padding-top:3px;min-width:28px}
.plan-body h3{font-size:17.5px;font-weight:600;color:var(--ink)}
.plan-body p{margin-top:6px;font-size:14.5px;color:var(--muted);line-height:1.75}
.plan-arrow{margin-left:auto;color:var(--brand);opacity:.55;padding-top:4px;transition:transform .2s ease,opacity .2s ease}
.plan-item:hover .plan-arrow{transform:translateX(4px);opacity:1}

/* ---------- news / cms ---------- */
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.news-lead, .news-mini{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-lead:hover,.news-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#F3C7A8}
.news-lead .thumb{position:relative}
.news-lead .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#F1ECE4}
.news-lead .thumb .badge{position:absolute;left:16px;top:16px;background:#fff}
.news-lead .body{padding:24px 26px 26px}
.news-lead h3{font-size:21px;font-weight:700;color:var(--ink);line-height:1.45;transition:color .2s ease}
.news-lead:hover h3{color:var(--brand)}
.news-lead p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.8}
.news-lead .meta{margin-top:18px;display:flex;align-items:center;gap:16px;font-size:13px;color:#8A9492}
.news-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.news-mini .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#F1ECE4}
.news-mini .body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1}
.news-mini h4{
  margin-top:10px;font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-mini:hover h4{color:var(--brand)}
.news-mini p{
  margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-mini .meta{margin-top:auto;padding-top:14px;font-size:12.5px;color:#8A9492}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;background:#FFFDFA;
}
.empty-state i{font-size:32px;color:#C9CFCD}
.empty-state p{margin-top:14px;font-size:15px;color:var(--muted)}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;cursor:pointer;font-size:16.5px;font-weight:600;color:var(--ink);
  list-style:none;transition:color .2s ease,padding-left .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand);padding-left:10px}
.faq-item summary i{color:var(--brand);font-size:14px;transition:transform .22s ease;flex:0 0 auto}
.faq-item[open] summary{color:var(--brand-hover)}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-answer{padding:0 4px 24px;font-size:15px;color:var(--muted);line-height:1.85}

/* ---------- contact ---------- */
.contact-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  display:grid;grid-template-columns:5fr 7fr;
}
.contact-info{background:var(--ink);color:#fff;padding:44px 40px}
.contact-info h2{font-size:24px;font-weight:700;line-height:1.35;color:#fff}
.contact-info p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.75);line-height:1.85}
.contact-list{margin-top:28px;display:flex;flex-direction:column;gap:18px}
.contact-list li{display:flex;gap:12px;font-size:14.5px;color:rgba(255,255,255,.82);line-height:1.7}
.contact-list i{color:var(--accent);width:18px;text-align:center;margin-top:4px}
.contact-form{padding:44px 40px}
.field{margin-bottom:20px}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px;font-weight:500}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:0 14px;height:48px;font-size:15px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:118px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9AA5A3}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,106,26,.18);
}
.field .hint{font-size:13px;color:var(--brand-hover);margin-top:6px;display:none}
.field.has-error input,.field.has-error select{border-color:#E2540A}
.field.has-error .hint{display:block}
.form-note{margin-top:16px;font-size:13px;color:#8A9492}
.form-ok{
  display:none;margin-top:16px;padding:12px 16px;border-radius:10px;
  background:var(--brand-soft);border:1px solid #FFDCC4;color:var(--brand-hover);font-size:14px;
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand span{font-size:17px;font-weight:700;letter-spacing:.02em}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;line-height:2;color:rgba(255,255,255,.72);transition:color .2s ease}
.footer-links a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:2;color:rgba(255,255,255,.72)}
.footer-contact i{color:var(--accent);margin-top:8px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual > img{height:300px}
  .news-grid{grid-template-columns:1fr}
  .news-mini-grid{grid-template-columns:1fr 1fr}
  .plans,.faq-layout{grid-template-columns:1fr;gap:28px}
  .plans-aside,.faq-aside{position:static}
  .contact-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .nav-side{display:none}
  .nav-wrap{grid-template-columns:auto 1fr auto}
  .brand{justify-self:start}
  .brand-text{font-size:16px}
  .nav-toggle{display:inline-flex}
  .section{padding:60px 0}
  .section-tight{padding:52px 0}
  .hero{padding:48px 0 64px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-trust{gap:14px;flex-direction:column;align-items:flex-start}
  .hero-visual > img{height:230px}
  .hero-float{left:0;bottom:-16px;width:100%}
  .services-grid{grid-template-columns:1fr}
  .service-card:nth-child(even){margin-top:0}
  .stats{padding:56px 0}
  .stats-grid{grid-template-columns:1fr 1fr;gap:28px 0}
  .stat-item{padding:0 18px}
  .stat-item:nth-child(3){border-left:none;padding-left:0}
  .case-row,.case-row.reverse{grid-template-columns:1fr;gap:22px}
  .case-row.reverse .case-media{order:0}
  .news-mini-grid{grid-template-columns:1fr}
  .contact-info,.contact-form{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .hero-visual > img{height:200px}
  .stats-grid{grid-template-columns:1fr}
  .stat-item{border-left:none;padding-left:0}
  .brand-text{font-size:15px;letter-spacing:0}
}

/* roulang page: article */
:root{
  --brand:#FF6A1A;
  --brand-dark:#E2540A;
  --brand-soft:#FFF1E7;
  --ink:#0F3B3A;
  --ink-2:#14514F;
  --accent:#FFD166;
  --bg:#F8F5F0;
  --card:#FFFFFF;
  --line:#E7E1D8;
  --text:#1A1F1E;
  --muted:#5C6B69;
  --radius-card:16px;
  --radius-pic:14px;
  --radius-btn:10px;
  --shadow-soft:0 1px 2px rgba(15,59,58,.06);
  --shadow-lift:0 14px 30px -14px rgba(15,59,58,.22);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block;background:#F1ECE4;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0 0 1.15em;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(15,59,58,.28);}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  min-height:74px;gap:16px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side.nav-left{justify-content:flex-start;}
.nav-side.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:6px 2px;transition:color .18s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-dark);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-dark);}
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:999px;background:var(--brand);
}
.brand{
  display:flex;align-items:center;gap:10px;justify-content:center;
  font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--ink);
  white-space:nowrap;
}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:9px;
  background:var(--brand-soft);display:flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:19px;height:19px;fill:var(--brand);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;
  background:var(--brand);color:#fff;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;transition:.2s ease;
}
.nav-cta:hover{background:var(--brand-dark);transform:translateY(-2px);}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);
  border:1px solid var(--line);align-items:center;justify-content:center;
  color:var(--ink);background:#fff;
}
.burger i{font-size:17px;}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:6px 0 18px;
}
.mobile-panel.open{display:block;}
.mobile-panel a.m-item{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 24px;font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.m-item.active{color:var(--brand-dark);font-weight:600;}
.mobile-panel .m-cta{
  margin:18px 24px 0;display:flex;align-items:center;justify-content:center;
  height:48px;background:var(--brand);color:#fff;border-radius:var(--radius-btn);
  font-weight:600;
}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:47px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;transition:.2s ease;border:1px solid transparent;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand-dark);
}
.link-arrow i{font-size:12px;transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ badges & tags ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--brand-soft);color:var(--brand-dark);border:1px solid #FFDCC5;
}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:999px;font-size:14px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);transition:.2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand-dark);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;
  color:var(--brand-dark);letter-spacing:.04em;
}
.eyebrow::before{content:"";width:6px;height:20px;background:var(--brand);border-radius:2px;}

/* ============ article head ============ */
.crumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand-dark);}
.crumb .sep{color:#C9C2B7;}
.crumb .now{color:var(--ink);}
.article-top{
  background:linear-gradient(180deg,#FFFFFF 0%,#FDFAF6 100%);
  border-bottom:1px solid var(--line);padding:34px 0 40px;
}
.article-head{max-width:860px;margin:0 auto;}
.article-title{
  font-size:clamp(28px,3.6vw,36px);line-height:1.3;font-weight:700;
  color:var(--ink);margin:18px 0 16px;letter-spacing:-.01em;
}
.meta-row{
  display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--muted);
  align-items:center;
}
.meta-row span{display:inline-flex;align-items:center;gap:6px;}
.meta-row i{color:var(--brand);font-size:12px;}
.article-cover{
  max-width:960px;margin:28px auto 0;border-radius:var(--radius-pic);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
}
.article-cover img{width:100%;height:auto;aspect-ratio:16/7;object-fit:cover;}

/* ============ layout ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:40px;
  padding:56px 0 72px;
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr) 200px;align-items:start;}
}
.article-main{max-width:820px;margin:0 auto;width:100%;}
.article-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-soft);padding:32px 30px 36px;
}
@media (max-width:520px){
  .article-panel{padding:22px 18px 26px;}
}

/* ============ article body ============ */
.article-body{font-size:16px;line-height:1.9;color:var(--text);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  font-size:26px;line-height:1.35;font-weight:700;color:var(--ink);
  margin:40px 0 18px;padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:24px;
  background:var(--brand);border-radius:2px;
}
.article-body h3{font-size:19px;font-weight:700;color:var(--ink-2);margin:30px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink-2);margin:24px 0 10px;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:#F8F5F0;
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;color:#33403E;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:16px 0 20px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;line-height:1.9;}
.article-body ul li::marker,.article-body ol li::marker{color:var(--brand);font-weight:700;}
.article-body img{border-radius:var(--radius-pic);margin:20px auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body a{color:var(--brand-dark);border-bottom:1px solid rgba(226,84,10,.35);}
.article-body a:hover{border-bottom-color:var(--brand-dark);}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.article-body th{background:var(--ink);color:#fff;font-weight:600;}
.article-body tr:nth-child(even) td{background:#FCFAF7;}
.article-body code{
  background:#F4F1EC;border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;
}
.article-body pre{
  background:#0F3B3A;color:#F2F6F5;border-radius:12px;padding:18px 20px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:22px 0;
}
.article-body pre code{background:none;border:none;color:inherit;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:30px 0;}

/* ============ empty state ============ */
.empty-box{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;background:#FDFBF8;
}
.empty-box i{font-size:32px;color:#C7BFB4;}
.empty-box p{font-size:15px;color:var(--muted);margin:16px 0 20px;}

/* ============ toc ============ */
.toc-box{
  position:sticky;top:104px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px 18px;box-shadow:var(--shadow-soft);
}
.toc-title{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:12px;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;font-size:13px;line-height:1.6;color:var(--muted);
  padding:6px 8px;border-left:2px solid transparent;border-radius:0 6px 6px 0;
  transition:.18s ease;
}
.toc-list a:hover{color:var(--brand-dark);background:#FDF9F4;}
.toc-list a.current{color:var(--brand-dark);border-left-color:var(--brand);background:var(--brand-soft);font-weight:600;}
@media (max-width:1279px){.toc-box{display:none;}}

/* ============ tail blocks ============ */
.tail-block{margin-top:36px;}
.tail-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-soft);padding:26px 26px 28px;
}
.tail-title{font-size:17px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:10px;}
.tail-title::before{content:"";width:6px;height:20px;background:var(--brand);border-radius:2px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.nav-buttons{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px;}
@media (max-width:520px){.nav-buttons{grid-template-columns:1fr;}}

/* ============ related cards ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:20px;}
@media (max-width:1023px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:640px){.related-grid{grid-template-columns:1fr;}}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-soft);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;height:100%;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}
.post-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#F1ECE4;}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-media img{transform:scale(1.04);}
.post-media .badge{position:absolute;left:12px;top:12px;background:#fff;}
.post-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1;}
.post-title{
  font-size:17px;font-weight:700;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.post-card:hover .post-title{color:var(--brand-dark);}
.post-excerpt{
  font-size:14px;color:var(--muted);line-height:1.75;margin:10px 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);padding-top:14px;border-top:1px solid var(--line);
}
.post-foot .link-arrow{font-size:13px;}

/* ============ cta band ============ */
.cta-band{
  background:var(--ink);color:#fff;border-radius:var(--radius-card);
  padding:36px 34px;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:22px;margin-top:36px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:240px;height:240px;
  background:radial-gradient(circle,rgba(255,106,26,.35),transparent 68%);
  pointer-events:none;
}
.cta-band h3{font-size:22px;position:relative;z-index:1;}
.cta-band p{color:rgba(255,255,255,.72);font-size:14px;margin:8px 0 0;max-width:560px;position:relative;z-index:1;}
.cta-band .btn{position:relative;z-index:1;}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:#fff;margin-top:88px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.02em;}
.footer-brand .brand-mark{background:rgba(255,106,26,.16);}
.footer-desc{font-size:14px;line-height:2;color:rgba(255,255,255,.72);margin-top:16px;max-width:420px;}
.footer-title{font-size:14px;font-weight:600;margin-bottom:16px;color:#fff;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;line-height:2;color:rgba(255,255,255,.72);transition:color .18s ease;}
.footer-links a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:2;color:rgba(255,255,255,.72);margin-bottom:8px;}
.footer-contact i{color:var(--brand);margin-top:8px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ responsive ============ */
@media (max-width:1023px){
  .nav-side{gap:18px;}
  .nav-link{font-size:14px;}
}
@media (max-width:767px){
  .nav-wrap{grid-template-columns:1fr auto;min-height:64px;}
  .nav-side,.nav-cta{display:none;}
  .brand{justify-content:flex-start;font-size:16px;white-space:normal;}
  .burger{display:flex;}
  .article-top{padding:26px 0 30px;}
  .meta-row{gap:12px;}
  .btn{width:100%;}
  .btn-inline{width:auto;}
  .cta-band{padding:28px 22px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  body{font-size:15px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
}

/* roulang page: category1 */
:root{
  --orange:#FF6A1A;
  --orange-dark:#E2540A;
  --orange-soft:#FFF1E7;
  --ink:#0F3B3A;
  --ink-2:#14514F;
  --yellow:#FFD166;
  --bg:#F8F5F0;
  --card:#FFFFFF;
  --line:#E7E1D8;
  --text:#1A1F1E;
  --muted:#5C6B69;
  --placeholder:#9AA5A3;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,59,58,.06);
  --sh-2:0 14px 30px -14px rgba(15,59,58,.22);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px -12px rgba(15,59,58,.28)}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:76px;
}
.nav-side{display:flex;align-items:center;gap:28px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--orange-dark)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--orange-dark)}
.nav-link.active::after{transform:scaleX(1)}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;letter-spacing:.02em;
  color:var(--ink);white-space:nowrap;
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--orange-soft);
  flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;fill:var(--orange)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.nav-cta{height:42px;padding:0 20px;font-size:14px}
.menu-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;
  color:var(--ink);font-size:18px;
}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:0 24px 22px;
}
.mobile-panel.is-open{display:block}
.mobile-panel .m-link{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel .m-link span.dot{width:6px;height:6px;border-radius:50%;background:var(--orange);opacity:0}
.mobile-panel .m-link.active{color:var(--orange-dark);font-weight:600}
.mobile-panel .m-link.active span.dot{opacity:1}
.mobile-panel .btn{width:100%;margin-top:18px}

/* ---------- 页面横幅 ---------- */
.page-hero{
  position:relative;
  display:flex;align-items:center;
  min-height:290px;
  padding:56px 0;
  color:#fff;
  background:
    linear-gradient(100deg,rgba(15,59,58,.95) 0%,rgba(15,59,58,.82) 52%,rgba(15,59,58,.60) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;top:-90px;right:-60px;
  width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,26,.16),rgba(255,106,26,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);
  margin-bottom:18px;flex-wrap:wrap;
}
.crumb a:hover{color:var(--yellow)}
.crumb .sep{opacity:.55}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,209,102,.16);
  border:1px solid rgba(255,209,102,.42);
  color:var(--yellow);
  font-size:12.5px;font-weight:600;
  margin-bottom:16px;
}
.page-hero h1{
  font-size:clamp(28px,3.9vw,42px);
  line-height:1.24;font-weight:700;
  max-width:820px;
}
.page-hero p{
  margin-top:16px;max-width:760px;
  font-size:16px;line-height:1.85;
  color:rgba(255,255,255,.80);
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px 26px;
  margin-top:24px;font-size:13px;color:rgba(255,255,255,.72);
}
.hero-meta i{color:var(--yellow);margin-right:8px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-y) 0}
.section.alt{background:#fff}
.section-head{max-width:760px;margin-bottom:34px}
.section-title{
  display:flex;align-items:center;gap:12px;
  font-size:clamp(23px,2.6vw,29px);
  font-weight:700;line-height:1.32;color:var(--ink);
}
.section-title::before{
  content:"";width:6px;height:20px;border-radius:3px;
  background:var(--orange);flex:0 0 auto;
}
.section-sub{margin-top:14px;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ---------- 锚点 + 步骤列表 ---------- */
.layout{
  display:grid;
  grid-template-columns:236px minmax(0,1fr);
  gap:52px;
  align-items:start;
}
.toc{
  position:sticky;top:104px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px 18px;
  box-shadow:var(--sh-1);
}
.toc-title{
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--muted);margin-bottom:12px;
}
.toc a{
  display:block;
  padding:9px 12px;
  font-size:14px;color:var(--ink-2);
  border-left:2px solid transparent;
  border-radius:6px;
  transition:background .2s ease,color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.toc a:hover{background:#FDF9F4;padding-left:16px}
.toc a.active{
  color:var(--orange-dark);
  border-left-color:var(--orange);
  background:var(--orange-soft);
  font-weight:600;
}
.toc-note{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);line-height:1.75;
}
.step-list{border-top:1px solid var(--line)}
.step-item{
  display:flex;gap:22px;
  padding:26px 12px 26px 0;
  border-bottom:1px solid var(--line);
  transition:background .22s ease,padding-left .22s ease;
}
.step-item:hover{background:#FDF9F4;padding-left:12px}
.step-num{
  flex:0 0 auto;
  font-size:26px;font-weight:700;line-height:1.2;
  color:var(--orange);
  font-variant-numeric:tabular-nums;
  min-width:46px;
}
.step-body h3{font-size:19px;font-weight:600;color:var(--ink);line-height:1.45}
.step-body p{margin-top:8px;font-size:15.5px;color:var(--text);line-height:1.85}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:12px;font-size:14px;font-weight:600;color:var(--orange-dark);
}
.text-link i{font-size:12px;transition:transform .2s ease}
.text-link:hover i{transform:translateX(4px)}

/* ---------- 准备清单 ---------- */
.prep-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.prep-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 26px 28px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD3C6}
.prep-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:var(--orange-soft);color:var(--orange-dark);
  font-size:18px;margin-bottom:16px;
}
.prep-card h3{font-size:18px;font-weight:600;color:var(--ink)}
.prep-card p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- 流程时间线 ---------- */
.flow{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;position:relative;
}
.flow-item{
  position:relative;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.flow-item::before{
  content:"";position:absolute;top:0;left:22px;right:22px;height:3px;
  border-radius:0 0 4px 4px;background:var(--orange);opacity:.85;
}
.flow-idx{
  display:inline-block;font-size:12.5px;font-weight:700;
  color:var(--orange-dark);background:var(--orange-soft);
  padding:3px 12px;border-radius:var(--r-pill);margin-bottom:14px;
}
.flow-item h3{font-size:17px;font-weight:600;color:var(--ink)}
.flow-item p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- 图文卡（场景） ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.scene-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;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-card .thumb{
  aspect-ratio:16/9;background:#F1ECE4;overflow:hidden;
}
.scene-card .thumb img{width:100%;height:100%;object-fit:cover}
.scene-body{padding:22px}
.badge{
  display:inline-block;
  padding:3px 12px;border-radius:var(--r-pill);
  background:var(--orange-soft);color:var(--orange-dark);
  border:1px solid #FBD9C0;
  font-size:12.5px;font-weight:600;
}
.scene-body h3{margin-top:12px;font-size:18px;font-weight:600;color:var(--ink);line-height:1.5}
.scene-body p{margin-top:10px;font-size:14.8px;color:var(--muted);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:300px minmax(0,1fr);gap:52px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;text-align:left;
  padding:22px 0;
  font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--orange-dark)}
.faq-q .ico{
  flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);
  color:var(--orange-dark);font-size:12px;
  transition:transform .22s ease,background .22s ease,border-color .22s ease;
}
.faq-item.open .faq-q .ico{transform:rotate(180deg);background:var(--orange-soft);border-color:#FBD9C0}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s ease;
}
.faq-a p{
  padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--muted);
}
.faq-side .btn{margin-top:20px}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink);
  border-radius:20px;
  padding:42px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,26,.20),rgba(255,106,26,0) 70%);
}
.cta-band h2{font-size:24px;font-weight:700;color:#fff;line-height:1.4}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.72);max-width:620px;line-height:1.8}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.cta-band .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:8px}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:700;letter-spacing:.02em;
  margin-bottom:18px;
}
.footer-brand .brand-mark{background:rgba(255,106,26,.18)}
.footer-desc{font-size:14px;line-height:2;color:rgba(255,255,255,.68)}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;line-height:2;transition:color .2s ease}
.footer-links a:hover{color:var(--orange)}
.footer-contact li{
  display:flex;gap:10px;font-size:14px;line-height:2;
  color:rgba(255,255,255,.68);margin-bottom:10px;
}
.footer-contact i{color:var(--orange);margin-top:7px;flex:0 0 auto}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec-y:76px}
  .layout{grid-template-columns:1fr;gap:36px}
  .toc{position:static}
  .toc a{display:inline-block;margin:4px 6px 4px 0;border-left:0;border:1px solid var(--line)}
  .toc a:hover{padding-left:12px}
  .toc a.active{border-color:#FBD9C0}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .nav-side{display:none}
  .header-inner{grid-template-columns:1fr auto;min-height:64px}
  .brand{font-size:16px}
  .menu-toggle{display:inline-flex}
  .page-hero{min-height:auto;padding:42px 0 48px}
  .hero-meta{gap:10px 18px}
  .flow{grid-template-columns:1fr 1fr}
  .prep-grid{grid-template-columns:1fr;gap:18px}
  .scene-grid{grid-template-columns:1fr}
  .step-item{gap:16px;padding:22px 0}
  .step-item:hover{padding-left:0}
  .cta-band{padding:32px 26px;border-radius:18px}
  .cta-band h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  body{font-size:15px}
  .flow{grid-template-columns:1fr}
  .step-num{font-size:22px;min-width:38px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .section-title{font-size:22px}
}

/* roulang page: category2 */
:root{
  --flame:#FF6A1A;
  --flame-deep:#E2540A;
  --flame-soft:#FFF1E7;
  --ink:#0F3B3A;
  --ink-2:#14514F;
  --lemon:#FFD166;
  --bg:#F8F5F0;
  --card:#FFFFFF;
  --line:#E7E1D8;
  --text:#1A1F1E;
  --muted:#5C6B69;
  --hover-bg:#FDF9F4;
  --img-ph:#F1ECE4;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(15,59,58,.06);
  --shadow-2:0 14px 30px -14px rgba(15,59,58,.22);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--flame);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(15,59,58,.35);}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  min-height:74px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-left{justify-self:start;}
.nav-right{justify-self:end;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink);
  padding:6px 0;
  transition:color .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--flame);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--flame-deep);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--flame-deep);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active::before{
  content:"";
  position:absolute;
  right:-12px;
  top:50%;
  width:6px;height:6px;
  margin-top:-3px;
  border-radius:50%;
  background:var(--flame);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  white-space:nowrap;
}
.brand-mark{
  display:inline-flex;
  width:30px;height:30px;
  align-items:center;
  justify-content:center;
  border-radius:9px;
  background:var(--flame-soft);
  color:var(--flame);
  flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px;fill:currentColor;}
.brand-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:0.02em;
  color:var(--ink);
}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--ink);
  cursor:pointer;
  justify-self:end;
}
.mobile-panel{
  display:none;
  overflow:hidden;
  max-height:0;
  transition:max-height .3s ease;
  border-top:1px solid var(--line);
  background:#fff;
}
.mobile-panel.open{max-height:520px;}
.mobile-panel a.mp-link{
  display:flex;
  align-items:center;
  height:56px;
  font-size:16px;
  padding:0 24px;
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.mobile-panel a.mp-link.active{color:var(--flame-deep);font-weight:600;}
.mobile-panel .mp-cta{padding:18px 24px 22px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn-primary{background:var(--flame);color:#fff;border-color:var(--flame);}
.btn-primary:hover{background:var(--flame-deep);border-color:var(--flame-deep);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.72);}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px);}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--flame-deep);
}
.text-link i{transition:transform .22s ease;font-size:12px;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  line-height:1.6;
  background:var(--flame-soft);
  color:var(--flame-deep);
  border:1px solid rgba(226,84,10,.18);
}
.badge-on-dark{
  background:rgba(255,255,255,.14);
  color:#fff;
  border-color:rgba(255,255,255,.24);
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 14px;
  border-radius:999px;
  font-size:13px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--muted);
}

/* ---------- Section heads ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,2.6vw,28px);
  line-height:1.3;
  font-weight:700;
  color:var(--ink);
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:6px;height:22px;
  border-radius:3px;
  background:var(--flame);
}
.section-sub{margin-top:12px;font-size:15px;color:var(--muted);max-width:680px;}

/* ---------- Banner ---------- */
.page-banner{
  position:relative;
  min-height:430px;
  display:flex;
  align-items:center;
  color:#fff;
  overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(15,59,58,.95) 0%,rgba(15,59,58,.84) 46%,rgba(15,59,58,.45) 100%);
}
.page-banner::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 84% 20%,rgba(255,106,26,.12),transparent 58%);
  pointer-events:none;
}
.page-banner .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);}
.crumb a:hover{color:var(--flame);}
.crumb .sep{opacity:.6;}
.banner-title{
  margin-top:18px;
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:-0.01em;
  max-width:760px;
}
.banner-lead{
  margin-top:18px;
  font-size:16.5px;
  line-height:1.85;
  color:rgba(255,255,255,.82);
  max-width:640px;
}
.banner-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap;}
.banner-points{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap;}
.banner-points span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.78);
}
.banner-points span::before{
  content:"";
  width:8px;height:8px;
  border-radius:2px;
  background:var(--flame);
  flex:0 0 auto;
}

/* ---------- Stats ---------- */
.stats-band{background:var(--ink);color:#fff;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-block{
  padding:44px 28px;
  border-left:1px solid rgba(255,255,255,.12);
}
.stat-block:first-child{border-left:none;}
.stat-kicker{
  display:inline-block;
  width:16px;height:4px;
  border-radius:2px;
  background:var(--flame);
  margin-bottom:16px;
}
.stat-num{
  font-size:clamp(34px,4vw,42px);
  line-height:1.05;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:-0.02em;
}
.stat-num em{font-style:normal;color:var(--lemon);font-size:.62em;margin-left:2px;}
.stat-label{margin-top:12px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;}

/* ---------- Cards grid ---------- */
.cards-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.info-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DED6C9;}
.img-frame{
  position:relative;
  aspect-ratio:16/9;
  background:var(--img-ph);
  overflow:hidden;
  border-radius:var(--r-img);
}
.img-frame img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.info-card:hover .img-frame img{transform:scale(1.03);}
.info-card .card-media{border-radius:0;aspect-ratio:16/9;}
.card-body{padding:24px 26px 26px;}
.card-title{
  margin-top:12px;
  font-size:19px;
  line-height:1.45;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease;
}
.info-card:hover .card-title{color:var(--flame-deep);}
.card-text{margin-top:10px;font-size:15px;line-height:1.85;color:var(--muted);}
.card-foot{margin-top:18px;}

/* ---------- Prep list ---------- */
.split{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:48px;align-items:start;}
.split-aside p{margin-top:14px;font-size:15px;color:var(--muted);}
.prep-list{border-top:1px solid var(--line);}
.prep-item{
  position:relative;
  display:flex;
  align-items:flex-start;
  gap:18px;
  padding:22px 16px;
  border-bottom:1px solid var(--line);
  transition:background-color .22s ease,padding-left .22s ease;
}
.prep-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--flame);
  opacity:0;
  transition:opacity .22s ease;
}
.prep-item:hover{background:var(--hover-bg);padding-left:26px;}
.prep-item:hover::before{opacity:1;}
.prep-num{
  flex:0 0 auto;
  width:34px;height:34px;
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  background:var(--flame-soft);
  color:var(--flame-deep);
}
.prep-title{font-size:16.5px;font-weight:600;color:var(--ink);}
.prep-desc{margin-top:6px;font-size:14.5px;color:var(--muted);line-height:1.8;}
.prep-arrow{margin-left:auto;color:#B9C2C0;font-size:14px;align-self:center;transition:color .2s ease,transform .2s ease;}
.prep-item:hover .prep-arrow{color:var(--flame);transform:translateX(3px);}

/* ---------- Timeline ---------- */
.timeline{position:relative;margin-top:8px;padding-left:60px;}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;top:12px;bottom:12px;
  width:2px;
  background:linear-gradient(180deg,var(--flame) 0%,rgba(255,106,26,.18) 100%);
}
.tl-item{position:relative;padding:0 0 40px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:-60px;top:2px;
  width:40px;height:40px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--flame);
  color:var(--flame-deep);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  box-shadow:var(--shadow-1);
}
.tl-title{font-size:18px;font-weight:600;color:var(--ink);}
.tl-text{margin-top:8px;font-size:15px;color:var(--muted);max-width:720px;}
.tl-meta{margin-top:10px;font-size:13px;color:#8A9997;}

/* ---------- FAQ ---------- */
.faq-wrap{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 4px;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--flame-deep);}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--flame);
  font-size:12px;
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--flame-soft);border-color:rgba(226,84,10,.24);}
.faq-answer{
  padding:0 4px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  max-width:880px;
}
.faq-answer p + p{margin-top:10px;}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--ink) 0%,var(--ink-2) 100%);
  border-radius:20px;
  padding:56px 48px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-60px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,26,.18),transparent 66%);
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);line-height:1.35;font-weight:700;position:relative;z-index:2;}
.cta-band p{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.78);max-width:640px;position:relative;z-index:2;}
.cta-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#fff;margin-top:96px;padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.02em;}
.footer-brand .brand-mark{background:rgba(255,106,26,.16);color:var(--flame);}
.footer-desc{margin-top:16px;font-size:14px;line-height:2;color:rgba(255,255,255,.68);max-width:340px;}
.footer-title{font-size:14px;font-weight:600;margin-bottom:16px;color:#fff;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);line-height:2;transition:color .2s ease;}
.footer-links a:hover{color:var(--flame);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.7);line-height:2;margin-bottom:10px;}
.footer-contact i{color:var(--flame);margin-top:7px;font-size:13px;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .split{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat-block:nth-child(3){border-left:none;}
  .stat-block{border-top:1px solid rgba(255,255,255,.12);}
  .stat-block:nth-child(1),.stat-block:nth-child(2){border-top:none;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:60px 0;}
  .section-tight{padding:52px 0;}
  .header-inner{min-height:64px;grid-template-columns:1fr auto;}
  .nav-left,.nav-right{display:none;}
  .brand{justify-self:start;}
  .menu-toggle{display:inline-flex;}
  .mobile-panel{display:block;}
  .brand-text{font-size:16px;}
  .page-banner{min-height:0;}
  .page-banner .container{padding-top:48px;padding-bottom:52px;}
  .banner-actions .btn{width:100%;}
  .cards-2{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat-block{padding:28px 20px;}
  .stat-block:nth-child(3){border-left:none;}
  .timeline{padding-left:48px;}
  .timeline::before{left:15px;}
  .tl-dot{left:-48px;width:32px;height:32px;font-size:12px;}
  .cta-band{padding:36px 24px;border-radius:16px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .section-head{align-items:flex-start;}
  .section-title{font-size:22px;}
}
@media (max-width:520px){
  .banner-title{font-size:26px;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .details-fix{padding-left:20px;}
}

/* roulang page: category3 */
:root{
  --brand:#FF6A1A;
  --brand-hover:#E2540A;
  --brand-soft:#FFF1E7;
  --ink:#0F3B3A;
  --ink-2:#14514F;
  --accent:#FFD166;
  --bg:#F8F5F0;
  --surface:#FFFFFF;
  --line:#E7E1D8;
  --text:#1A1F1E;
  --muted:#5C6B69;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(15,59,58,.06);
  --shadow-2:0 14px 30px -14px rgba(15,59,58,.22);
  --sec-y:96px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:#F1ECE4}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:var(--sec-y) 0}
.sec-tight{padding:72px 0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:0 6px 18px -12px rgba(15,59,58,.28)}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  min-height:76px;
  gap:16px;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end;gap:22px}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--brand);border-radius:2px;
}
.brand{display:flex;align-items:center;gap:10px;justify-self:center}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,#FF6A1A,#E2540A);
  display:grid;place-items:center;flex:0 0 auto;
  box-shadow:0 8px 18px -10px rgba(255,106,26,.75);
}
.brand-mark svg{width:20px;height:20px;fill:#fff}
.brand-text{
  font-size:17.5px;font-weight:700;letter-spacing:.02em;color:var(--ink);
  white-space:nowrap;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(255,106,26,.9)}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-hover)}
.btn-sm{height:42px;padding:0 18px;font-size:14.5px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-hover)}
.link-arrow i{transition:transform .18s ease;font-size:13px}
.link-arrow:hover i{transform:translateX(4px)}

.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:8px 20px 20px;
}
.mobile-panel.open{display:block}
.m-link{
  display:flex;align-items:center;height:56px;font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.m-link.active{color:var(--brand);font-weight:600}
.m-link.active::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-right:10px;
}
.m-cta{margin-top:18px;width:100%}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFFDFB 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;
  background:radial-gradient(circle at 30% 30%,rgba(255,106,26,.12),rgba(255,106,26,0) 62%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;align-items:center;
  padding:56px 0 64px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:#C6CFCD}
.hero h1{
  font-size:clamp(30px,4.2vw,44px);
  line-height:1.24;font-weight:700;
  margin-bottom:18px;
}
.hero-lead{font-size:17px;line-height:1.9;color:var(--muted);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:var(--muted);transition:all .18s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand-hover);transform:translateY(-2px)}
.panel-dark{
  background:linear-gradient(160deg,var(--ink),#0B2E2D);
  border-radius:var(--r-card);
  padding:28px;color:#fff;
  box-shadow:var(--shadow-2);
}
.panel-dark h3{color:#fff;font-size:17px;font-weight:600;margin-bottom:6px}
.panel-dark .panel-sub{font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:22px}
.stat-row{display:flex;flex-direction:column;gap:0}
.stat-item{
  display:flex;align-items:flex-start;gap:14px;
  padding:16px 0;border-top:1px solid rgba(255,255,255,.12);
}
.stat-item:first-child{border-top:none;padding-top:0}
.stat-num{
  font-size:30px;font-weight:700;line-height:1.1;color:var(--accent);
  font-variant-numeric:tabular-nums;min-width:82px;
}
.stat-label{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.72)}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px}
.sec-title{position:relative;padding-left:16px;font-size:28px;font-weight:700;line-height:1.3}
.sec-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:20px;background:var(--brand);border-radius:2px;
}
.sec-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:660px}

/* ---------- cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DCD4C8}
.card-media{aspect-ratio:4/3;overflow:hidden;background:#F1ECE4}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-hover);
  font-size:12.5px;font-weight:600;border:1px solid rgba(255,106,26,.22);
  width:fit-content;
}
.card-title{font-size:18.5px;font-weight:600;line-height:1.45;color:var(--ink)}
.card-text{font-size:14.5px;color:var(--muted);line-height:1.8}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;padding-top:6px}

/* ---------- timeline ---------- */
.timeline-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.sticky-col{position:sticky;top:104px}
.sticky-col h2{font-size:26px;margin-bottom:14px}
.sticky-col p{font-size:14.5px;color:var(--muted);line-height:1.85}
.timeline{position:relative;padding-left:60px}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(255,106,26,.12));
}
.tl-item{position:relative;padding-bottom:36px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-60px;top:0;
  width:40px;height:40px;border-radius:50%;
  background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;
  font-size:14px;font-weight:700;color:var(--brand);
  box-shadow:var(--shadow-1);
}
.tl-title{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:8px}
.tl-text{font-size:15px;color:var(--muted);line-height:1.85;max-width:720px}
.tl-note{
  margin-top:10px;display:inline-flex;gap:8px;align-items:flex-start;
  font-size:13.5px;color:var(--ink-2);background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;padding:10px 14px;
}

/* ---------- dark scene block ---------- */
.dark-band{background:linear-gradient(150deg,var(--ink) 0%,#0B2E2D 100%);color:#fff}
.dark-band .sec-title{color:#fff}
.dark-band .sec-desc{color:rgba(255,255,255,.7)}
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.scene{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);
  padding:24px;
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.scene:hover{transform:translateY(-4px);background:rgba(255,255,255,.08);border-color:rgba(255,209,102,.45)}
.scene-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.status{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:rgba(255,209,102,.16);color:var(--accent);border:1px solid rgba(255,209,102,.35);
}
.scene h3{color:#fff;font-size:17.5px;font-weight:600;margin-bottom:10px}
.scene p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72)}
.scene p + p{margin-top:8px}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  transition:transform .22s ease,background .22s ease,border-color .22s ease;
  margin-top:2px;
}
.faq-icon i{font-size:12px;color:var(--muted);transition:color .22s ease}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--brand);border-color:var(--brand)}
.faq-item[open] .faq-icon i{color:#fff}
.faq-item[open] summary{color:var(--brand-hover)}
.faq-answer{padding:0 4px 24px;font-size:15px;line-height:1.9;color:var(--muted)}
.faq-answer ol{margin:10px 0 0;padding-left:20px;list-style:decimal}
.faq-answer li{margin-bottom:6px}

/* ---------- channels ---------- */
.channel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.channel-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-soft);
  display:grid;place-items:center;margin-bottom:18px;
}
.channel-icon i{font-size:19px;color:var(--brand-hover)}
.channel h3{font-size:18px;font-weight:600;margin-bottom:10px}
.channel p{font-size:14.5px;color:var(--muted);line-height:1.85}
.channel-meta{margin-top:16px;font-size:14px;font-weight:600;color:var(--ink-2)}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--ink);color:#fff;
  padding:44px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:24px;font-weight:700;margin-bottom:8px}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 26px}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,4fr) minmax(0,2.4fr) minmax(0,2.4fr) minmax(0,3fr);
  gap:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px}
.footer-brand span:last-child{color:#fff;font-size:17px;font-weight:700;letter-spacing:.02em}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:400px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);line-height:2}
.footer-links a:hover{color:var(--brand)}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.9;
  color:rgba(255,255,255,.72);margin-bottom:10px;
}
.footer-contact i{color:var(--accent);margin-top:6px;font-size:13px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sec-y:76px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:48px 0 56px}
  .timeline-layout,.faq-layout{grid-template-columns:1fr;gap:32px}
  .sticky-col{position:static}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:767px){
  :root{--sec-y:60px}
  .container{padding:0 20px}
  .nav-wrap{grid-template-columns:auto 1fr auto;min-height:64px}
  .nav-side{display:none}
  .brand{grid-column:2;justify-self:start;margin-left:4px}
  .brand-text{font-size:16.5px}
  .nav-toggle{display:flex;grid-column:3}
  .hero-inner{padding:36px 0 44px}
  .hero h1{font-size:26px}
  .hero-lead{font-size:15.5px}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .grid-4,.grid-3,.grid-2,.scene-grid{grid-template-columns:1fr}
  .sec-title{font-size:22px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .timeline{padding-left:52px}
  .timeline::before{left:17px}
  .tl-dot{left:-52px;width:36px;height:36px;font-size:13px}
  .cta-inner h2{font-size:20px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .stat-num{font-size:26px;min-width:70px}
  .card-body{padding:18px}
}