/* roulang page: index */
:root{
  --brand-900:#0A2B21;
  --brand-800:#0E4633;
  --brand-600:#17694C;
  --brand-100:#E4EFE9;
  --accent-500:#FF7A2F;
  --accent-600:#E8641C;
  --lime-400:#C8F04C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0B1D17;
  --ink:#16211C;
  --ink-2:#5B6B63;
  --line:#E2E0D8;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:12px;
  --radius-badge:999px;
  --radius-img:14px;
  --shadow-sm:0 1px 2px rgba(11,29,23,.06);
  --shadow-md:0 8px 24px -12px rgba(11,29,23,.18);
  --shadow-hover:0 14px 32px -14px rgba(11,29,23,.28);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand-800);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--ink);line-height:1.3;}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:20px;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:22px;}
li{margin-bottom:8px;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head .eyebrow{display:block;font-size:13px;letter-spacing:.08em;color:var(--brand-600);text-transform:uppercase;margin-bottom:8px;font-weight:600;}
.section-head p{margin:10px 0 0;color:var(--ink-2);max-width:640px;}
.more-link{font-size:15px;font-weight:600;color:var(--brand-800);border-bottom:1px solid transparent;padding-bottom:2px;}
.more-link:hover{border-bottom-color:var(--accent-500);color:var(--brand-800);}

/* ---------- 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;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 18px -10px rgba(232,100,28,.9);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px -12px rgba(232,100,28,.75);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand-800);border-color:var(--brand-800);}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-on-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-on-dark:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:16px;z-index:80;padding:0 20px;}
.nav-shell{
  max-width:1200px;margin:0 auto;height:64px;border-radius:999px;
  background:rgba(255,255,255,.82);backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);box-shadow:var(--shadow-md);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 12px 0 20px;transition:background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-shell{background:rgba(255,255,255,.95);box-shadow:var(--shadow-hover);}
.brand{display:flex;flex-direction:column;line-height:1.05;color:var(--brand-900);}
.brand:hover{color:var(--brand-900);}
.brand-mark{font-size:20px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--ink-2);margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  font-size:15px;color:var(--ink);border-radius:999px;transition:color .18s ease,background-color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:4px;height:2px;width:0;background:var(--accent-500);
  transform:translateX(-50%);transition:width .22s ease;
}
.nav-links a:hover{color:var(--brand-600);}
.nav-links a:hover::after{width:22px;}
.nav-links a.active{background:var(--brand-100);color:var(--brand-800);font-weight:600;}
.nav-links a.active::after{width:0;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-panel{
  display:none;max-width:1200px;margin:10px auto 0;border-radius:20px;
  background:rgba(10,43,33,.96);backdrop-filter:blur(10px);padding:14px;
  box-shadow:var(--shadow-hover);
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;height:48px;padding:0 16px;color:#fff;font-size:16px;border-radius:12px;
}
.mobile-panel a:hover,.mobile-panel a.active{background:rgba(255,255,255,.12);color:#fff;}
.mobile-panel .btn{width:100%;margin-top:10px;}

/* ---------- hero ---------- */
.hero{padding:56px 0 72px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero h1{margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--brand-600);}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:20px;}
.hero-note{font-size:13px;color:var(--ink-2);letter-spacing:.02em;}
.hero-visual{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-md);background:#E7E4DC;}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual::after{content:"";position:absolute;inset:0;background:rgba(10,43,33,.2);}
.hero-strip{
  position:absolute;left:0;right:0;bottom:0;height:6px;z-index:2;
  background:linear-gradient(90deg,var(--accent-500) 0%,var(--accent-500) 45%,var(--brand-800) 45%,var(--brand-800) 100%);
}
.hero-badge{
  position:absolute;top:18px;left:18px;z-index:2;background:var(--lime-400);color:var(--brand-900);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--radius-badge);
}

/* ---------- stats ---------- */
.stats{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:26px 24px;border-right:1px solid var(--line);}
.stat:last-child{border-right:none;}
.stat-num{font-size:32px;font-weight:700;color:var(--brand-800);line-height:1.1;}
.stat-num small{font-size:15px;font-weight:600;margin-left:2px;}
.stat-label{font-size:13px;color:var(--ink-2);letter-spacing:.02em;margin-top:6px;}

/* ---------- compare (grid table) ---------- */
.compare-scroll{overflow-x:auto;padding-bottom:6px;}
.compare{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;min-width:820px;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-sm);}
.compare>div{padding:0 22px;min-height:56px;display:flex;align-items:center;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink);}
.compare .head{font-weight:700;font-size:16px;height:64px;background:var(--brand-100);color:var(--brand-900);border-bottom:1px solid var(--line);}
.compare .head small{display:block;font-weight:500;font-size:12px;color:var(--ink-2);margin-top:2px;letter-spacing:.02em;}
.compare .head .col{display:flex;flex-direction:column;justify-content:center;}
.compare .row-label{color:var(--ink-2);font-size:14px;background:#FCFBF8;}
.compare .feat{position:relative;background:var(--surface);}
.compare .feat .col{display:flex;align-items:center;height:100%;color:#fff;}
.compare .feat-top{background:var(--brand-800);color:#fff;}
.compare .feat-top .col{color:#fff;}
.compare .feat .feat-tag{
  position:absolute;top:-13px;left:22px;background:var(--lime-400);color:var(--brand-900);
  font-size:12px;font-weight:700;padding:3px 12px;border-radius:var(--radius-badge);
}
.compare .feat::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--accent-500);}
.compare .feat-last{border-bottom:none;}
.compare .checked{display:inline-flex;align-items:center;gap:8px;font-size:14px;}
.compare .checked svg{flex:none;}
.compare .muted{color:var(--ink-2);font-size:14px;}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap);}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D6D3C8;}
.card:hover::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;background:var(--accent-500);border-radius:0 3px 3px 0;}
.card-icon{
  width:48px;height:48px;border-radius:14px;background:var(--brand-100);display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;color:var(--brand-800);
}
.card h3{margin-bottom:10px;}
.card p{color:var(--ink-2);font-size:15px;margin-bottom:14px;}
.card .card-link{font-size:14px;font-weight:600;color:var(--brand-800);display:inline-flex;align-items:center;gap:6px;}
.card .card-link:hover{color:var(--accent-600);}

/* ---------- content preview ---------- */
.preview-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column;}
.preview-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.preview-media{position:relative;background:#E7E4DC;}
.preview-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.preview-media .badge{position:absolute;top:12px;left:12px;}
.preview-body{padding:20px 22px 22px;}
.preview-body h3{font-size:18px;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.preview-body p{font-size:14px;color:var(--ink-2);margin-bottom:14px;}

.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-badge);background:var(--brand-100);color:var(--brand-800);font-size:12.5px;font-weight:600;letter-spacing:.02em;}
.badge-lime{background:var(--lime-400);color:var(--brand-900);}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--ink-2);font-weight:500;}
time,.meta{font-size:13px;color:var(--ink-2);letter-spacing:.02em;}

/* ---------- latest list ---------- */
.post-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.post-item{
  display:grid;grid-template-columns:200px 1fr;gap:20px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D6D3C8;}
.post-thumb{background:#E7E4DC;}
.post-thumb img{width:100%;height:100%;min-height:150px;object-fit:cover;}
.post-body{padding:18px 20px 18px 0;display:flex;flex-direction:column;gap:8px;}
.post-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h3 a{color:var(--ink);}
.post-body h3 a:hover{color:var(--brand-600);}
.post-body p{font-size:14px;color:var(--ink-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;}
.empty-state{
  border:1.5px dashed var(--line);border-radius:var(--radius-card);min-height:200px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  color:var(--ink-2);text-align:center;padding:32px;background:#FCFBF8;grid-column:1/-1;
}
.empty-state svg{color:var(--brand-600);}
.list-more{display:flex;justify-content:center;margin-top:32px;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s ease;}
.faq-item[open]{border-color:var(--brand-600);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:14px 22px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-600);}
.faq-icon{position:relative;width:18px;height:18px;flex:none;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-800);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-body{padding:0 22px 20px;color:var(--ink-2);font-size:15px;}
.faq-body p:last-child{margin-bottom:0;}

/* ---------- cta ---------- */
.cta-block{background:var(--dark);border-radius:20px;padding:54px 48px;color:#fff;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta-block h2{color:#fff;margin-bottom:14px;}
.cta-block p{color:rgba(255,255,255,.72);font-size:15px;margin-bottom:0;}
.cta-list{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-direction:column;gap:8px;}
.cta-list li{color:rgba(255,255,255,.78);font-size:14.5px;display:flex;gap:10px;align-items:flex-start;margin:0;}
.cta-list svg{flex:none;margin-top:5px;color:var(--lime-400);}
.form-row{display:flex;gap:12px;flex-wrap:wrap;}
.form-field{flex:1 1 180px;display:flex;flex-direction:column;gap:8px;}
.form-field label{font-size:13px;color:rgba(255,255,255,.72);letter-spacing:.02em;}
.form-field input{
  height:48px;padding:0 16px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#fff;transition:border-color .18s ease,background-color .18s ease;
}
.form-field input::placeholder{color:rgba(255,255,255,.42);}
.form-field input:focus{outline:none;border-color:var(--lime-400);background:rgba(255,255,255,.14);}
.form-actions{display:flex;align-items:center;gap:16px;margin-top:18px;flex-wrap:wrap;}
.form-privacy{font-size:12.5px;color:rgba(255,255,255,.55);}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#fff;margin-top:96px;padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-mark{color:#fff;font-size:22px;}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);}
.footer-brand p{color:rgba(255,255,255,.68);font-size:14px;margin-top:16px;max-width:300px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.7);font-size:14.5px;display:inline-flex;align-items:center;gap:0;transition:color .18s ease,transform .18s ease;}
.footer-col a::before{content:"";width:0;height:12px;background:var(--accent-500);border-radius:2px;transition:width .18s ease;margin-right:0;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-col a:hover::before{width:3px;margin-right:8px;}
.footer-col p{color:rgba(255,255,255,.68);font-size:14px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}

/* ---------- breadcrumb ---------- */
.breadcrumb{font-size:13px;color:var(--ink-2);display:flex;gap:8px;flex-wrap:wrap;align-items:center;padding:24px 0 0;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#B9B7AE;}
.breadcrumb .current{color:var(--brand-800);font-weight:600;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .stats-grid{grid-template-columns:repeat(4,1fr);}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:72px 0;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .post-list{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .cta-block{padding:36px 24px;}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat{border-right:none;border-bottom:1px solid var(--line);}
  .stat:nth-child(odd){border-right:1px solid var(--line);}
  .stat:nth-last-child(-n+2){border-bottom:none;}
  .post-item{grid-template-columns:1fr;}
  .post-thumb{aspect-ratio:16/9;}
  .post-body{padding:0 20px 20px;}
  .post-body h3{padding-top:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:639px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .site-header{padding:0 12px;top:10px;}
  .nav-shell{height:56px;padding:0 10px 0 16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .grid-3,.grid-4,.grid-2,.post-list{gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .hero{padding:32px 0 48px;}
  .brand-mark{font-size:18px;}
  .brand-sub{font-size:10px;letter-spacing:.14em;}
  .cta-block{padding:28px 20px;border-radius:16px;}
  .site-footer{margin-top:56px;padding:48px 0 24px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0A2B21;
  --brand-800:#0E4633;
  --brand-600:#17694C;
  --brand-100:#E4EFE9;
  --accent-500:#FF7A2F;
  --accent-600:#E8641C;
  --lime-400:#C8F04C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0B1D17;
  --ink:#16211C;
  --ink-2:#5B6B63;
  --line:#E2E0D8;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-sm:0 1px 2px rgba(11,29,23,.06);
  --shadow-md:0 8px 24px -12px rgba(11,29,23,.18);
  --shadow-hover:0 14px 32px -14px rgba(11,29,23,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{line-height:1.9}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}
.section{padding:96px 0}
.section-alt{background:var(--surface)}
.section-dark{background:var(--dark);color:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);color:var(--brand-900)}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:15.5px}
.section-dark .section-head h2,.section-dark .section-head p{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.72)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--brand-600);
  background:var(--brand-100);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500)}

/* 按钮 */
.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;letter-spacing:.01em;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{border-color:var(--brand-800);color:var(--brand-800);background:transparent}
.btn-secondary:hover{background:var(--brand-100)}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-100);color:var(--brand-800);font-size:12.5px;font-weight:600;letter-spacing:.02em}
.badge-lime{background:rgba(200,240,76,.18);color:var(--lime-400);border:1px solid rgba(200,240,76,.35)}
.badge-on-dark{background:rgba(255,255,255,.14);color:#fff}
.tagline{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-size:12.5px;color:var(--ink-2);background:#F0EEE7;border-radius:999px;padding:4px 12px}

/* 悬浮胶囊导航 */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:90;padding:0 20px;pointer-events:none}
.nav-shell{
  pointer-events:auto;
  max-width:var(--container);margin:0 auto;height:64px;
  display:flex;align-items:center;gap:20px;
  padding:0 12px 0 22px;border-radius:999px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);box-shadow:var(--shadow-md);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-shell{background:rgba(255,255,255,.95);box-shadow:var(--shadow-hover)}
.brand{display:flex;align-items:baseline;gap:8px;flex-shrink:0}
.brand-mark{font-size:20px;font-weight:700;letter-spacing:.02em;color:var(--brand-900)}
.brand-sub{font-size:12.5px;color:var(--ink-2);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-block;padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--ink);transition:color .2s ease,background-color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:3px;height:2px;width:0;
  background:var(--accent-500);transform:translateX(-50%);transition:width .25s ease;
}
.nav-links a:hover{color:var(--brand-600)}
.nav-links a:hover::after{width:56%}
.nav-links a.active{color:var(--brand-800);background:var(--brand-100);font-weight:600}
.nav-links a.active::after{width:0}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{display:none;width:44px;height:44px;border-radius:999px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:1px solid var(--line);background:#fff}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-panel{
  pointer-events:auto;display:none;position:fixed;inset:0;z-index:85;
  background:rgba(10,43,33,.96);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  padding:120px 24px 40px;
}
body.nav-open .mobile-panel{display:block}
.mobile-panel a{display:flex;align-items:center;height:48px;color:#fff;font-size:17px;border-bottom:1px solid rgba(255,255,255,.12)}
.mobile-panel a.active{color:var(--lime-400)}

/* 分类页英雄区 */
.cat-hero{
  position:relative;color:#fff;padding:150px 0 72px;overflow:hidden;
  background:var(--brand-900) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(10,43,33,.94) 0%,rgba(14,70,51,.86) 55%,rgba(10,43,33,.9) 100%);
}
.cat-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:center;min-height:280px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);letter-spacing:.02em;margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.68)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .current{color:#fff;font-weight:600}
.cat-hero h1{font-size:clamp(30px,4.4vw,46px);font-weight:700;line-height:1.25;margin:14px 0 16px;max-width:16em}
.hero-lead{font-size:18px;color:rgba(255,255,255,.92);max-width:34em}
.hero-sub{font-size:15.5px;color:rgba(255,255,255,.72);margin-top:10px;max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--shadow-hover);background:rgba(255,255,255,.08)}
.hero-media::after{
  content:"";position:absolute;left:0;right:0;bottom:-14px;height:6px;border-radius:6px;
  background:linear-gradient(90deg,var(--accent-500) 0 38%,var(--brand-600) 38% 100%);
}

/* 通道卡片 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.channel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:0;overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
.channel-thumb{position:relative;background:#EDEAE1}
.channel-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.channel-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.channel-body h3{font-size:20px;color:var(--brand-900)}
.channel-body p{font-size:15px;color:var(--ink-2)}
.channel-icon{width:40px;height:40px;border-radius:12px;background:var(--brand-100);display:flex;align-items:center;justify-content:center;color:var(--brand-800)}
.channel-foot{margin-top:auto;padding-top:8px;font-size:14px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px}
.channel-foot:hover{color:var(--accent-600)}

/* 步骤条 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px 24px;box-shadow:var(--shadow-sm);
}
.step-dot{
  width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;background:#EDEAE1;color:var(--ink-2);margin-bottom:18px;
}
.step.is-current{border-color:var(--accent-500);box-shadow:var(--shadow-md)}
.step.is-current .step-dot{background:var(--accent-500);color:#fff}
.step h3{font-size:19px;color:var(--brand-900);margin-bottom:10px}
.step p{font-size:15px;color:var(--ink-2)}
.step::after{
  content:"";position:absolute;top:44px;right:-24px;width:24px;height:2px;
  background:repeating-linear-gradient(90deg,var(--line) 0 6px,transparent 6px 12px);
}
.step:last-child::after{display:none}
.step-state{margin-top:16px;font-size:13px;letter-spacing:.02em;color:var(--ink-2)}
.step.is-current .step-state{color:var(--accent-600);font-weight:600}

/* 入口对照列表 */
.entry-list{border-top:1px solid var(--line)}
.entry-row{
  display:grid;grid-template-columns:200px 1fr 240px;gap:24px;align-items:center;
  padding:22px 4px;border-bottom:1px solid var(--line);transition:background-color .2s ease;
}
.entry-row:hover{background:var(--surface)}
.entry-scene{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--brand-900)}
.entry-scene .dot{width:8px;height:8px;border-radius:50%;background:var(--brand-600);flex-shrink:0}
.entry-way{font-size:15px;color:var(--ink)}
.entry-note{font-size:13.5px;color:var(--ink-2);letter-spacing:.02em}

/* 核对清单 */
.check-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:32px;box-shadow:var(--shadow-sm);
  display:grid;grid-template-columns:1fr 1fr;gap:16px 32px;
}
.check-item{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line)}
.check-item:last-child,.check-item:nth-last-child(2){border-bottom:0}
.check-box{
  width:22px;height:22px;border-radius:8px;flex-shrink:0;margin-top:6px;
  background:var(--brand-100);border:1px solid var(--brand-600);
  display:flex;align-items:center;justify-content:center;color:var(--brand-800);
}
.check-item p{font-size:15px;color:var(--ink)}
.check-item p strong{color:var(--brand-900)}
.check-hint{
  grid-column:1/-1;margin-top:8px;padding:16px 20px;border-radius:14px;
  background:rgba(200,240,76,.16);border-left:4px solid var(--lime-400);
  font-size:14.5px;color:var(--brand-900);
}

/* 问答双列 */
.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.qa-card{
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand-600);
  border-radius:0 var(--radius-card) var(--radius-card) 0;padding:24px;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.qa-card:hover{border-left-color:var(--accent-500);transform:translateY(-3px);box-shadow:var(--shadow-md)}
.qa-card h3{font-size:17.5px;color:var(--brand-900);margin-bottom:10px}
.qa-card p{font-size:15px;color:var(--ink-2)}

/* 底部 CTA 窄条 */
.cta-bar{
  background:var(--dark);border-radius:20px;padding:32px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow-md);
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);color:#fff;margin-bottom:8px}
.cta-bar p{font-size:15px;color:rgba(255,255,255,.7)}
.cta-bar .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--dark);color:#fff;padding:72px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-mark{color:#fff;font-size:20px;font-weight:700}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);margin-left:8px;font-size:12.5px;letter-spacing:.08em}
.footer-brand p{margin-top:16px;font-size:14px;color:rgba(255,255,255,.65);max-width:34em}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:10px;position:relative;padding-left:0;transition:padding-left .2s ease}
.footer-col ul li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;background:var(--accent-500);transition:height .2s ease;
}
.footer-col ul li:hover{padding-left:10px}
.footer-col ul li:hover::before{height:14px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7)}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:14px;color:rgba(255,255,255,.65)}
.footer-bottom{
  margin-top:48px;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);letter-spacing:.02em;
}
.footer-bottom a{color:rgba(255,255,255,.75)}
.footer-bottom a:hover{color:#fff}

/* 响应式 */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr 320px;gap:36px}
  .entry-row{grid-template-columns:170px 1fr 200px;gap:20px}
}
@media (max-width:900px){
  .section{padding:72px 0}
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .hero-grid{grid-template-columns:1fr}
  .cat-hero{padding:132px 0 56px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr;gap:16px}
  .step::after{display:none}
  .entry-row{grid-template-columns:1fr;gap:8px;padding:20px 0}
  .check-panel{grid-template-columns:1fr;padding:24px}
  .check-item:nth-last-child(2){border-bottom:1px dashed var(--line)}
  .qa-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:639px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .site-header{top:10px;padding:0 16px}
  .nav-shell{height:56px;padding:0 10px 0 16px}
  .brand-mark{font-size:18px}
  .grid-3{grid-template-columns:1fr;gap:16px}
  .cat-hero{padding:118px 0 48px}
  .hero-actions .btn{width:100%}
  .cta-bar{padding:24px;border-radius:16px}
  .cta-bar .cta-actions{width:100%}
  .cta-bar .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:56px 0 24px;margin-top:56px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: article */
:root{
  --brand-900:#0A2B21;
  --brand-800:#0E4633;
  --brand-600:#17694C;
  --brand-100:#E4EFE9;
  --accent-500:#FF7A2F;
  --accent-600:#E8641C;
  --lime-400:#C8F04C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0B1D17;
  --ink:#16211C;
  --ink-2:#5B6B63;
  --line:#E2E0D8;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --sh-sm:0 1px 2px rgba(11,29,23,.06);
  --sh-md:0 8px 24px -12px rgba(11,29,23,.18);
  --sh-hover:0 14px 32px -14px rgba(11,29,23,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.005em;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
a{color:var(--brand-800);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-600);}
button{font-family:inherit;font-size:inherit;}
[hidden]{display:none !important;}
::selection{background:var(--lime-400);color:var(--brand-900);}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:16px;z-index:60;padding:0 20px;pointer-events:none;}
.header-inner{
  pointer-events:auto;
  max-width:1200px;
  margin:0 auto;
  min-height:64px;
  padding:0 12px 0 20px;
  display:flex;
  align-items:center;
  gap:18px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--sh-md);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .header-inner{
  background:rgba(255,255,255,.95);
  box-shadow:var(--sh-hover);
}
.brand{display:flex;align-items:baseline;gap:8px;white-space:nowrap;}
.brand-mark{font-size:19px;font-weight:700;color:var(--brand-900);letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:var(--brand-600);letter-spacing:.08em;font-weight:600;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  font-size:15px;
  color:var(--ink);
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:6px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--accent-500);
  transform:translateX(-50%);
  transition:width .25s ease;
}
.nav-links a:hover{color:var(--brand-800);}
.nav-links a:hover::after{width:22px;}
.nav-links a.active{color:var(--brand-800);background:var(--brand-100);font-weight:600;}
.nav-links a.active::after{width:0;}
.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  background:transparent;
  border:1px solid var(--line);
  border-radius:999px;
  cursor:pointer;
  transition:background .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-800);transition:transform .25s ease,opacity .2s ease;}
.nav-toggle:hover{background:var(--brand-100);}

/* ============ 按钮 ============ */
.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;
  text-decoration:none;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 18px -10px rgba(255,122,47,.75);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(232,100,28,.85);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px -8px rgba(232,100,28,.7);}
.btn-outline{background:transparent;color:var(--brand-800);border-color:var(--brand-800);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-800);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:var(--brand-100);
  color:var(--brand-800);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;}
.tag{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-2);
  font-size:13px;
  letter-spacing:.02em;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:var(--brand-600);color:var(--brand-800);background:var(--brand-100);}

/* ============ 文章头部 ============ */
.article-hero{position:relative;padding:52px 0 40px;overflow:hidden;}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.07;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(247,245,240,.35) 0%,var(--bg) 82%);
}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--ink-2);
  margin-bottom:24px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#BFC7C1;}
.breadcrumb .crumb-cat{color:var(--brand-600);font-weight:600;}
.breadcrumb .current{color:var(--brand-900);font-weight:700;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:clamp(30px,4vw,40px);
  line-height:1.28;
  color:var(--brand-900);
  max-width:900px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;
  letter-spacing:.02em;
  color:var(--ink-2);
}
.article-meta .meta-dot{color:#C4CCC7;}
.share-row{display:flex;align-items:center;gap:8px;margin-left:auto;}
.share-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-2);
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.share-btn:hover{background:var(--brand-100);color:var(--brand-800);border-color:var(--brand-100);transform:translateY(-2px);}
.share-btn svg{width:17px;height:17px;}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 280px;
  gap:56px;
  align-items:start;
  padding:8px 0 0;
}
.article-main{min-width:0;}

/* ============ 正文排版 ============ */
.article-body{
  max-width:780px;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
}
.article-body p{margin:0 0 1.1em;}
.article-body > *:first-child{margin-top:0;}
.article-body h1{font-size:28px;margin:36px 0 14px;}
.article-body h2{
  position:relative;
  font-size:clamp(24px,2.6vw,30px);
  line-height:1.4;
  color:var(--brand-900);
  margin:40px 0 16px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:4px;
  border-radius:2px;
  background:var(--accent-500);
}
.article-body h3{font-size:22px;line-height:1.5;color:var(--brand-800);margin:28px 0 12px;}
.article-body h4{font-size:18px;margin:22px 0 10px;}
.article-body ul,
.article-body ol{padding-left:22px;margin:0 0 1.2em;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--brand-600);}
.article-body strong{font-weight:700;color:var(--brand-900);}
.article-body a{border-bottom:1px solid rgba(23,105,76,.35);}
.article-body a:hover{color:var(--brand-600);border-bottom-color:var(--brand-600);}
.article-body blockquote{
  margin:24px 0;
  padding:16px 22px;
  background:var(--brand-100);
  border-left:3px solid var(--brand-600);
  border-radius:0 12px 12px 0;
  color:#1F3128;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:22px 0;width:auto;}
.article-body figure{margin:24px 0;}
.article-body figure img{margin:0 auto;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;letter-spacing:.02em;}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  border:1px solid var(--line);
  border-radius:var(--r-img);
  overflow:hidden;
  margin:24px 0;
  font-size:15px;
  background:var(--surface);
}
.article-body th,
.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);}
.article-body thead th{background:var(--brand-100);color:var(--brand-800);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FAF9F5;}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body code{
  background:#F0EEE7;
  padding:2px 6px;
  border-radius:6px;
  font-size:.92em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:#0B1D17;
  color:#E7EFE9;
  padding:18px 20px;
  border-radius:var(--r-img);
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:24px 0;
}
.article-body pre code{background:transparent;padding:0;color:inherit;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* ============ 内联 CTA ============ */
.inline-cta{
  max-width:780px;
  margin:36px 0;
  padding:24px 28px;
  border-radius:var(--r-card);
  background:linear-gradient(135deg,#FDFBF6 0%,#F1EEE5 100%);
  border:1px solid var(--line);
  box-shadow:var(--sh-sm);
  display:flex;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
}
.inline-cta-copy{flex:1 1 320px;min-width:0;}
.inline-cta-copy h3{font-size:18px;color:var(--brand-900);margin-bottom:6px;}
.inline-cta-copy p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0;}

/* ============ 空态 ============ */
.empty-state{
  min-height:200px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  padding:40px 24px;
  border:1.5px dashed var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  text-align:center;
}
.empty-state svg{width:36px;height:36px;color:var(--brand-600);}
.empty-title{font-size:17px;font-weight:700;color:var(--brand-900);}
.empty-desc{font-size:14px;color:var(--ink-2);max-width:420px;line-height:1.8;}
.empty-state .btn{margin-top:6px;}

/* ============ 上一篇 / 下一篇 ============ */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:44px 0 0;max-width:780px;}
.post-nav-item{
  display:block;
  padding:18px 22px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  box-shadow:var(--sh-sm);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.post-nav-item:hover{border-color:var(--brand-600);box-shadow:var(--sh-md);transform:translateY(-2px);}
.post-nav-label{display:block;font-size:12px;letter-spacing:.08em;color:var(--ink-2);margin-bottom:6px;}
.post-nav-title{display:block;font-size:15px;font-weight:600;color:var(--brand-900);line-height:1.6;}
.post-nav-item.is-next{text-align:right;}

/* ============ 相关推荐 ============ */
.related{margin-top:72px;}
.block-title{
  font-size:clamp(20px,2vw,24px);
  color:var(--brand-900);
  margin-bottom:28px;
  display:flex;
  align-items:center;
  gap:12px;
}
.block-title::after{content:"";flex:1;height:1px;background:var(--line);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:900px;}
.related-card{
  display:flex;
  flex-direction:column;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  overflow:hidden;
  box-shadow:var(--sh-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-100);}
.related-media{
  position:relative;
  aspect-ratio:16/9;
  background:#EDEAE2 url('/assets/images/coverpic/cover-5.webp') center/cover no-repeat;
  overflow:hidden;
}
.related-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.related-card:hover .related-media img{transform:scale(1.04);}
.related-card h3{font-size:16px;line-height:1.6;color:var(--brand-900);padding:18px 20px 6px;}
.related-card p{font-size:13.5px;line-height:1.8;color:var(--ink-2);padding:0 20px 20px;margin:0;}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 22px 20px;
  box-shadow:var(--sh-sm);
}
.side-title{font-size:14px;letter-spacing:.06em;color:var(--brand-800);margin-bottom:16px;}
.toc{display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:block;
  padding:8px 0 8px 14px;
  border-left:2px solid var(--line);
  font-size:13.5px;
  line-height:1.7;
  color:var(--ink-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.toc a:hover{color:var(--brand-800);border-left-color:var(--accent-500);background:#FBFAF6;}
.side-card-dark{background:var(--dark);border-color:var(--dark);}
.side-card-dark .side-title{color:#fff;}
.side-card-dark p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:18px;}
.side-card-dark .btn{width:100%;height:44px;font-size:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:96px;padding:72px 0 28px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand .brand-mark{font-size:22px;font-weight:700;color:#fff;}
.footer-brand .brand-sub{font-size:13px;color:var(--lime-400);letter-spacing:.08em;margin-left:8px;}
.footer-brand p{margin:16px 0 0;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{font-size:14px;color:#fff;margin:0 0 18px;letter-spacing:.02em;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  position:relative;
  display:inline-block;
  color:rgba(255,255,255,.7);
  transition:color .2s ease,transform .2s ease;
}
.footer-col a::before{
  content:"";
  position:absolute;
  left:-12px;
  top:50%;
  width:2px;
  height:0;
  background:var(--accent-500);
  transform:translateY(-50%);
  transition:height .2s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-col a:hover::before{height:14px;}
.footer-col p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.62);margin:0;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-side{display:none;}
  .article-body{margin:0 auto;}
  .inline-cta,.post-nav{margin-left:auto;margin-right:auto;}
  .related-grid{max-width:none;}
}
@media (max-width:900px){
  .site-header{top:12px;padding:0 16px;}
  .header-inner{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(255,255,255,.96);padding:0 12px 0 16px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;
    inset:0;
    flex-direction:column;
    justify-content:center;
    gap:10px;
    padding:80px 24px;
    background:rgba(10,43,33,.96);
    border-radius:0;
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .28s ease,transform .28s ease,visibility .28s ease;
    z-index:70;
  }
  .site-header.is-open .nav-links{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-links a{height:48px;width:100%;justify-content:center;font-size:17px;color:#fff;}
  .nav-links a:hover{color:#fff;background:rgba(255,255,255,.1);}
  .nav-links a.active{color:#fff;background:rgba(255,255,255,.14);}
  .nav-links a::after{display:none;}
  .site-header.is-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .site-header.is-open .nav-toggle span:nth-child(2){opacity:0;}
  .site-header.is-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .article-hero{padding:40px 0 32px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{margin-top:72px;padding:56px 0 24px;}
}
@media (max-width:640px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .brand-sub{display:none;}
  .header-actions .btn{display:none;}
  .breadcrumb .current{max-width:180px;}
  .article-title{font-size:28px;}
  .article-meta{gap:10px;}
  .share-row{margin-left:0;width:100%;}
  .article-body h2{padding-left:14px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .inline-cta{padding:20px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav-item.is-next{text-align:left;}
  .related-grid{grid-template-columns:1fr;gap:18px;}
  .related{margin-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0A2B21;
  --brand-800:#0E4633;
  --brand-600:#17694C;
  --brand-100:#E4EFE9;
  --accent-500:#FF7A2F;
  --accent-600:#E8641C;
  --lime-400:#C8F04C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0B1D17;
  --ink:#16211C;
  --ink-2:#5B6B63;
  --line:#E2E0D8;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-sm:0 1px 2px rgba(11,29,23,.06);
  --shadow-md:0 8px 24px -12px rgba(11,29,23,.18);
  --shadow-hover:0 14px 32px -14px rgba(11,29,23,.28);
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:700;line-height:1.3}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:20px;font-weight:600}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px}

.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--section) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head p{color:var(--ink-2);max-width:640px;margin:12px 0 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--brand-600);
  background:var(--brand-100);border-radius:999px;padding:6px 14px;font-weight:600;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500)}

/* ============ 按钮 ============ */
.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;cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-ghost{background:transparent;border:1px solid var(--brand-800);color:var(--brand-800)}
.btn-ghost:hover{background:var(--brand-100);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-light{background:transparent;border:1px solid rgba(255,255,255,.6);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}

/* ============ 头部与胶囊导航 ============ */
.site-header{position:sticky;top:16px;z-index:80;padding:0}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  height:64px;padding:0 14px 0 22px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);border-radius:999px;
  box-shadow:var(--shadow-md);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .header-inner{background:rgba(255,255,255,.95);box-shadow:var(--shadow-hover)}
.logo{display:flex;align-items:baseline;gap:8px;flex-shrink:0}
.brand-mark{font-size:20px;font-weight:700;color:var(--brand-900);letter-spacing:.02em}
.brand-sub{font-size:12px;color:var(--brand-600);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;color:var(--ink);border-radius:999px;transition:color .2s ease,background .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:6px;width:0;height:2px;
  background:var(--accent-500);transform:translateX(-50%);transition:width .22s ease;border-radius:2px;
}
.nav-links a:hover{color:var(--brand-600)}
.nav-links a:hover::after{width:22px}
.nav-links a.active{background:var(--brand-100);color:var(--brand-800);font-weight:600}
.nav-links a.active::after{width:0}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;
  align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;position:relative;transition:.2s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:.2s}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-active span{background:transparent}
.nav-toggle.is-active span::before{transform:rotate(45deg);top:0}
.nav-toggle.is-active span::after{transform:rotate(-45deg);top:0}

/* ============ Hero ============ */
.page-hero{position:relative;padding:64px 0 56px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.08;pointer-events:none;
}
.page-hero .container{position:relative}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start}
.breadcrumb{font-size:13px;letter-spacing:.02em;color:var(--ink-2);margin-bottom:20px}
.breadcrumb a:hover{color:var(--brand-600);text-decoration:underline}
.breadcrumb .sep{margin:0 8px;opacity:.6}
.breadcrumb .current{color:var(--brand-800);font-weight:600}
.hero-copy h1{margin:18px 0 20px}
.hero-copy h1 .hl{color:var(--brand-600)}
.lead{font-size:17px;color:#31413A;max-width:600px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 18px}
.hero-note{font-size:13px;color:var(--ink-2);letter-spacing:.02em;margin:0}

.anchor-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-md);position:sticky;top:96px;
}
.anchor-panel h2{font-size:15px;letter-spacing:.06em;color:var(--ink-2);font-weight:600;margin-bottom:14px}
.anchor-list{display:flex;flex-direction:column;gap:2px;counter-reset:anchor}
.anchor-list a{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:10px;font-size:15px;color:var(--ink);transition:.2s;
}
.anchor-list a::before{
  counter-increment:anchor;content:counter(anchor,decimal-leading-zero);
  font-size:12px;color:var(--ink-2);letter-spacing:.04em;
}
.anchor-list a:hover{background:var(--brand-100);color:var(--brand-800)}
.anchor-list a:hover::before{color:var(--accent-500)}
.anchor-panel img{
  margin-top:18px;border-radius:var(--radius-img);width:100%;aspect-ratio:16/10;object-fit:cover;
  background:var(--brand-100);
}

/* ============ 数据条 ============ */
.stats-bar{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.stat{padding:26px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat .num{font-size:32px;font-weight:700;color:var(--brand-800);line-height:1.2;letter-spacing:-.02em}
.stat .num small{font-size:15px;font-weight:600;margin-left:2px}
.stat .cap{font-size:13px;color:var(--ink-2);letter-spacing:.02em;margin-top:6px}

/* ============ 功能网格（描边卡） ============ */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:0 0 24px;overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D3D9D0}
.feature-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-100);border-bottom:1px solid var(--line)}
.feature-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feature-card:hover .thumb img{transform:scale(1.04)}
.feature-body{padding:22px 24px 0}
.feature-body h3{margin-bottom:10px}
.feature-body p{color:var(--ink-2);font-size:15px;margin-bottom:16px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding:0 24px}
.tag{
  font-size:12px;letter-spacing:.02em;color:var(--brand-800);
  background:var(--brand-100);border-radius:999px;padding:4px 12px;
}

/* ============ 流程步骤 ============ */
.flow-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:40px 32px;box-shadow:var(--shadow-sm)}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow::before{
  content:"";position:absolute;left:24px;right:24px;top:23px;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px);
}
.flow-step{position:relative;padding-top:0}
.flow-step .dot{
  width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);color:var(--brand-800);
  font-weight:700;font-size:16px;position:relative;z-index:1;margin-bottom:18px;
}
.flow-step.is-current .dot{background:var(--accent-500);border-color:var(--accent-500);color:#fff;box-shadow:0 8px 20px -10px rgba(255,122,47,.9)}
.flow-step h3{font-size:17px;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--ink-2);margin:0}

/* ============ 使用场景横向条目 ============ */
.scene-list{display:flex;flex-direction:column;gap:20px}
.scene-item{
  display:grid;grid-template-columns:320px 1fr;gap:28px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;transition:box-shadow .22s ease,transform .22s ease;
}
.scene-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.scene-item:nth-child(even){grid-template-columns:1fr 320px}
.scene-item:nth-child(even) .scene-media{order:2}
.scene-media{border-radius:var(--radius-img);overflow:hidden;aspect-ratio:5/3;background:var(--brand-100)}
.scene-media img{width:100%;height:100%;object-fit:cover}
.scene-text h3{margin-bottom:10px}
.scene-text p{color:var(--ink-2);font-size:15px;margin:0}
.scene-text .meta{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:13px;color:var(--ink-2);letter-spacing:.02em}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:24px 56px 24px 0;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-600);line-height:1;transition:transform .22s ease;
}
.faq-item[open] summary{color:var(--brand-800)}
.faq-item[open] summary::after{content:"×";transform:translateY(-50%) rotate(0deg)}
.faq-item summary:hover{color:var(--brand-600)}
.faq-body{padding:0 56px 26px 0;color:var(--ink-2);font-size:15px}
.faq-body p:last-child{margin-bottom:0}

/* ============ 窄条 CTA ============ */
.cta-strip{
  background:var(--dark);border-radius:20px;padding:40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-strip::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,76,.22),transparent 70%);
}
.cta-strip h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.cta-strip p{color:rgba(255,255,255,.72);margin:0;max-width:560px;font-size:15px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.cta-strip .btn-primary:hover{box-shadow:0 16px 32px -14px rgba(255,122,47,.8)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:var(--section);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-mark{color:#fff;font-size:20px}
.footer-brand .brand-sub{color:var(--lime-400);font-size:12px;letter-spacing:.14em;margin-left:8px}
.footer-brand p{font-size:14px;line-height:1.85;margin:18px 0 0;color:rgba(255,255,255,.66);max-width:340px}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);position:relative;display:inline-block;transition:.2s}
.footer-col a::before{
  content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%);
  width:2px;height:0;background:var(--accent-500);transition:height .2s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-col a:hover::before{height:14px}
.footer-col p{font-size:14px;color:rgba(255,255,255,.66);margin:0}
.footer-bottom{
  margin-top:48px;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);letter-spacing:.02em;
}
.footer-bottom a{color:rgba(255,255,255,.72);text-decoration:underline}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--section:72px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .nav-links{
    position:fixed;inset:0;z-index:70;flex-direction:column;align-items:stretch;justify-content:center;
    gap:0;padding:96px 32px;background:rgba(10,43,33,.96);
    -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
    opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .25s ease,transform .25s ease,visibility .25s;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:none}
  .nav-links a{
    height:48px;padding:0 16px;color:#fff;font-size:17px;border-radius:10px;
    border-bottom:1px solid rgba(255,255,255,.12);
  }
  .nav-links a::after{display:none}
  .nav-links a.active{background:rgba(255,255,255,.1);color:#fff}
  .nav-toggle{display:inline-flex;position:relative;z-index:80}
  .header-actions .btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .anchor-panel{position:static}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px}
  .flow::before{display:none}
  .scene-item,.scene-item:nth-child(even){grid-template-columns:1fr;}
  .scene-item:nth-child(even) .scene-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--section:56px}
  .header-inner{height:56px;padding:0 8px 0 16px}
  .brand-mark{font-size:18px}
  .brand-sub{font-size:11px;letter-spacing:.1em}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head p{max-width:none}
  .feature-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .cta-strip{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  body{font-size:15.5px}
  .stats-bar{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .anchor-panel{padding:20px}
  .flow-wrap{padding:26px 20px}
  .hero-cta .btn{flex:1 1 100%}
}

/* roulang page: category3 */
:root{
  --brand-900:#0A2B21;
  --brand-800:#0E4633;
  --brand-600:#17694C;
  --brand-100:#E4EFE9;
  --accent-500:#FF7A2F;
  --accent-600:#E8641C;
  --lime-400:#C8F04C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0B1D17;
  --ink:#16211C;
  --ink-2:#5B6B63;
  --line:#E2E0D8;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --shadow-sm:0 1px 2px rgba(11,29,23,.06);
  --shadow-md:0 8px 24px -12px rgba(11,29,23,.18);
  --shadow-hover:0 14px 32px -14px rgba(11,29,23,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;}
a:hover{color:var(--brand-800);}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;color:var(--brand-900);font-weight:700;}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:20px;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:96px 0;}
.section-soft{background:var(--brand-100);}
.section-dark{background:var(--dark);}
.section-head{max-width:780px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-600);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px;}
.section-head p{color:var(--ink-2);margin-top:14px;margin-bottom:0;font-size:16px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:16px;z-index:60;
  padding-top:16px;
}
.nav-shell{
  display:flex;align-items:center;gap:20px;
  height:64px;padding:0 22px;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-md);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(255,255,255,.95);
  box-shadow:var(--shadow-hover);
}
.brand{display:flex;align-items:baseline;gap:8px;text-decoration:none;white-space:nowrap;flex:0 0 auto;}
.brand-mark{font-size:19px;font-weight:700;color:var(--brand-900);letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:var(--ink-2);letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto;}
.nav-links a{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--ink);text-decoration:none;
  transition:color .2s ease,background .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:3px;
  width:0;height:2px;background:var(--accent-500);
  border-radius:2px;transform:translateX(-50%);
  transition:width .25s ease;
}
.nav-links a:hover{color:var(--brand-600);}
.nav-links a:hover::after{width:22px;}
.nav-links a.active{color:var(--brand-800);background:var(--brand-100);font-weight:600;}
.nav-links a.active::after{width:0;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);
  cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;
  background:var(--brand-800);border-radius:2px;
  transform:translateX(-50%);transition:transform .25s ease,opacity .2s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:rotate(45deg);top:0;}
.nav-toggle.is-open span::after{transform:rotate(-45deg);top:0;}

/* ============ 按钮 ============ */
.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;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px -12px rgba(255,122,47,.9);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(232,100,28,.85);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border-color:var(--brand-800);color:var(--brand-800);background:transparent;}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-800);}
.btn-ghost-light{border-color:rgba(255,255,255,.55);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 徽章 / 面包屑 ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--brand-100);color:var(--brand-800);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.badge-lime{background:var(--lime-400);color:var(--brand-900);}
.breadcrumb{font-size:13px;color:var(--ink-2);letter-spacing:.02em;margin-bottom:18px;}
.breadcrumb a{color:var(--ink-2);text-decoration:none;transition:color .2s;}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{margin:0 7px;opacity:.55;}
.breadcrumb strong{color:var(--brand-800);font-weight:600;}

/* ============ Hero ============ */
.page-hero{padding:36px 0 72px;position:relative;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(820px 380px at 8% -10%,rgba(200,240,76,.20),transparent 65%),
    radial-gradient(680px 340px at 100% 0%,rgba(23,105,76,.10),transparent 70%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;align-items:center;
}
.hero-copy .badge{margin-bottom:18px;}
.hero-lead{
  font-size:17px;line-height:1.9;color:var(--ink-2);
  margin:20px 0 28px;max-width:560px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-note{
  margin-top:22px;font-size:13px;color:var(--ink-2);letter-spacing:.02em;
  display:flex;align-items:center;gap:8px;
}
.hero-note::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
.hero-media{
  position:relative;margin:0;border-radius:20px;overflow:hidden;
  box-shadow:var(--shadow-md);background:var(--brand-100);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:6px;
  background:linear-gradient(90deg,var(--accent-500) 0 42%,var(--brand-800) 42% 100%);
}
.hero-figcaption{
  position:absolute;left:16px;bottom:22px;
  background:rgba(10,43,33,.72);color:#fff;
  font-size:12px;letter-spacing:.02em;
  padding:6px 12px;border-radius:999px;
}

/* ============ 数据条 ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.stat-item{padding:26px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:none;}
.stat-num{font-size:32px;font-weight:700;color:var(--brand-800);line-height:1.2;}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px;}
.stat-label{font-size:13px;color:var(--ink-2);letter-spacing:.02em;margin-top:6px;}

/* ============ 对比表 ============ */
.compare-scroll{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  padding-bottom:10px;
  border-radius:var(--r-card);
}
.compare-table{
  display:grid;
  grid-template-columns:200px repeat(3,minmax(210px,1fr));
  min-width:860px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.cell{
  min-height:56px;display:flex;align-items:center;gap:10px;
  padding:10px 20px;font-size:15px;
  border-bottom:1px solid var(--line);
}
.cell.row-label{font-size:14px;color:var(--ink-2);background:#FBFAF6;}
.cell.head{
  min-height:74px;font-size:18px;font-weight:700;color:var(--brand-900);
  background:#FCFBF8;border-bottom:1px solid var(--line);
}
.cell.head.row-label{background:transparent;}
.cell.featured{
  background:var(--brand-800);color:rgba(255,255,255,.92);
  border-bottom-color:rgba(255,255,255,.14);
}
.cell.featured.head{
  color:#fff;box-shadow:inset 0 4px 0 var(--accent-500);
  display:flex;flex-direction:column;align-items:flex-start;gap:6px;justify-content:center;
}
.cell.featured .badge-lime{height:22px;font-size:12px;}
.compare-note{margin-top:16px;font-size:13px;color:var(--ink-2);letter-spacing:.02em;}

/* ============ 等级阶梯 ============ */
.ladder{position:relative;list-style:none;margin:0;padding:0 0 0 36px;}
.ladder::before{
  content:"";position:absolute;left:7px;top:14px;bottom:14px;
  width:2px;background:var(--line);
}
.ladder-item{
  position:relative;padding:22px 26px;margin-bottom:16px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.ladder-item::before{
  content:"";position:absolute;left:-36px;top:28px;
  width:16px;height:16px;border-radius:50%;
  background:var(--surface);border:3px solid var(--line);
  transition:border-color .2s ease,background .2s ease;
}
.ladder-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.ladder-item.is-current{
  background:var(--brand-100);border-color:var(--brand-600);
}
.ladder-item.is-current::before{border-color:var(--accent-500);background:var(--accent-500);}
.ladder-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px;}
.ladder-top h3{font-size:19px;}
.ladder-item p{margin:0;color:var(--ink-2);font-size:15px;}
.ladder-meta{
  margin-top:12px;display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13px;color:var(--ink-2);letter-spacing:.02em;
}
.ladder-meta span{display:inline-flex;align-items:center;gap:6px;}
.ladder-meta span::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--brand-600);
}

/* ============ 权益清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 32px;}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.check-icon{
  flex:0 0 26px;height:26px;border-radius:8px;
  background:var(--brand-100);position:relative;margin-top:2px;
}
.check-icon::after{
  content:"";position:absolute;left:8px;top:7px;
  width:9px;height:5px;border-left:2px solid var(--brand-600);
  border-bottom:2px solid var(--brand-600);transform:rotate(-45deg);
}
.check-item h3{font-size:16px;margin-bottom:4px;}
.check-item p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:14px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-sm);}
.faq-item[open]{border-color:var(--brand-600);}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:60px;padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--brand-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{position:relative;flex:0 0 20px;height:20px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);
  border-radius:2px;transition:transform .25s ease,background .25s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-item[open] .faq-icon::before{background:var(--accent-500);}
.faq-body{padding:0 24px 22px;color:var(--ink-2);font-size:15px;line-height:1.9;}
.faq-body p:last-child{margin-bottom:0;}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--dark);border-radius:20px;
  padding:52px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;
  color:#fff;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  opacity:.16;pointer-events:none;
}
.cta-panel > *{position:relative;}
.cta-panel h2{color:#fff;}
.cta-panel p{color:rgba(255,255,255,.72);font-size:15px;margin-top:14px;}
.cta-points{list-style:none;margin:24px 0 0;padding:0;}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:rgba(255,255,255,.78);margin-bottom:10px;
}
.cta-points li::before{
  content:"";flex:0 0 6px;height:6px;border-radius:50%;
  background:var(--lime-400);margin-top:9px;
}
.join-form{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:26px;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:13px;color:rgba(255,255,255,.65);margin-bottom:8px;letter-spacing:.02em;}
.form-field input,
.form-field select{
  width:100%;height:48px;padding:0 15px;
  border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-field input::placeholder{color:rgba(255,255,255,.45);}
.form-field select option{color:#16211C;}
.form-field input:focus,
.form-field select:focus{
  outline:none;border-color:var(--lime-400);
  box-shadow:0 0 0 3px rgba(200,240,76,.18);
  background:rgba(255,255,255,.12);
}
.form-note{margin:12px 0 0;font-size:12px;color:rgba(255,255,255,.55);letter-spacing:.02em;line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:72px 0 28px;}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;
}
.footer-brand .brand-mark{font-size:20px;font-weight:700;color:#fff;}
.footer-brand .brand-sub{font-size:12px;color:var(--lime-400);margin-left:8px;letter-spacing:.02em;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;max-width:360px;color:rgba(255,255,255,.62);}
.footer-col h4{font-size:14px;color:#fff;margin:0 0 16px;font-weight:600;letter-spacing:.02em;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  position:relative;display:inline-block;
  color:rgba(255,255,255,.7);font-size:14px;text-decoration:none;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a::before{
  content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%);
  width:2px;height:0;background:var(--accent-500);border-radius:2px;
  transition:height .2s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-col a:hover::before{height:14px;}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);margin:0;}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  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);letter-spacing:.02em;
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{gap:36px;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .page-hero{padding:28px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{max-width:620px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-panel{grid-template-columns:1fr;padding:40px;}
}
@media (max-width:899px){
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;inset:0;z-index:90;
    display:flex;flex-direction:column;justify-content:center;
    gap:6px;padding:88px 24px 40px;
    background:rgba(10,43,33,.96);
    backdrop-filter:blur(6px);
    transform:translateX(100%);
    transition:transform .3s ease;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{
    width:100%;height:48px;display:flex;align-items:center;justify-content:center;
    color:#fff;font-size:17px;border-radius:12px;
  }
  .nav-links a::after{display:none;}
  .nav-links a:hover{color:var(--lime-400);background:rgba(255,255,255,.06);}
  .nav-links a.active{background:rgba(255,255,255,.14);color:#fff;}
  .nav-actions .btn{display:none;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:none;}
  .stat-item:nth-child(1),
  .stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .check-grid{grid-template-columns:1fr;}
}
@media (max-width:640px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .nav-shell{height:56px;padding:0 14px;gap:10px;}
  .brand-mark{font-size:17px;}
  .brand-sub{font-size:11px;}
  .hero-lead{font-size:16px;}
  .cta-panel{padding:28px 20px;border-radius:16px;}
  .join-form{padding:20px;}
  .faq-item summary{padding:14px 18px;font-size:15px;}
  .faq-body{padding:0 18px 18px;}
  .ladder{
    display:flex;gap:14px;overflow-x:auto;
    padding:4px 4px 14px;scroll-snap-type:x mandatory;
  }
  .ladder::before{display:none;}
  .ladder-item{
    min-width:262px;scroll-snap-align:start;margin-bottom:0;
  }
  .ladder-item::before{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category4 */
:root{
  --brand-900:#0A2B21;
  --brand-800:#0E4633;
  --brand-600:#17694C;
  --brand-100:#E4EFE9;
  --accent-500:#FF7A2F;
  --accent-600:#E8641C;
  --lime-400:#C8F04C;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#0B1D17;
  --ink:#16211C;
  --ink-2:#5B6B63;
  --line:#E2E0D8;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:12px;
  --shadow-sm:0 1px 2px rgba(11,29,23,.06);
  --shadow-md:0 8px 24px -12px rgba(11,29,23,.18);
  --shadow-lg:0 14px 32px -14px rgba(11,29,23,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --space-section:96px;
}
*,*::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:1.9;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-800);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand-600);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--brand-900);line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:var(--space-section) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);}
.section-head p{color:var(--ink-2);font-size:15px;max-width:620px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.02em;color:var(--brand-600);
  background:var(--brand-100);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500);}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:sticky;top:16px;z-index:60;
  padding:0 20px;
}
.nav-shell{
  max-width:1200px;margin:0 auto;padding:0 12px 0 20px;
  height:64px;display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-md);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-shell{background:rgba(255,255,255,.95);box-shadow:var(--shadow-lg);}
.brand{display:flex;align-items:baseline;gap:8px;flex:0 0 auto;}
.brand-mark{font-size:21px;font-weight:700;color:var(--brand-900);letter-spacing:-0.02em;}
.brand-sub{font-size:12px;color:var(--ink-2);letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-block;padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--ink);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:4px;height:2px;width:0;
  background:var(--accent-500);transform:translateX(-50%);
  transition:width .22s ease;border-radius:2px;
}
.nav-links a:hover::after{width:44%;}
.nav-links a:hover{color:var(--brand-600);}
.nav-links a.active{color:var(--brand-800);font-weight:600;background:var(--brand-100);}
.nav-links a.active::after{width:0;}
.nav-cta{flex:0 0 auto;height:44px;padding:0 20px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{
  display:none;position:fixed;inset:0;z-index:70;
  background:rgba(10,43,33,.96);
  padding:96px 24px 32px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;height:48px;font-size:17px;color:#fff;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.mobile-panel a.active{color:var(--lime-400);}
.mobile-panel .mobile-close{
  position:absolute;top:28px;right:24px;width:44px;height:44px;border-radius:999px;
  border:1px solid rgba(255,255,255,.3);color:#fff;font-size:20px;line-height:1;
}

/* ---------- 按钮 ---------- */
.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;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-ghost{background:transparent;border:1px solid var(--brand-800);color:var(--brand-800);}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-800);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;border-radius:20px;overflow:hidden;
  background-color:var(--brand-900);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#fff;padding:56px 0 48px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,43,33,.92) 0%,rgba(10,43,33,.82) 45%,rgba(10,43,33,.45) 100%);
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero-grid{display:grid;grid-template-columns:1.5fr .8fr;gap:40px;align-items:end;}
.cat-hero h1{color:#fff;font-size:clamp(30px,4.4vw,46px);line-height:1.25;}
.cat-hero .lead{margin-top:20px;font-size:16.5px;color:rgba(255,255,255,.86);max-width:620px;line-height:1.9;}
.hero-meta{display:flex;gap:28px;flex-wrap:wrap;margin-top:28px;font-size:13px;color:rgba(255,255,255,.72);letter-spacing:.02em;}
.hero-meta strong{display:block;font-size:22px;color:#fff;font-weight:700;}
.hero-side{
  border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);align-self:stretch;
}
.hero-side img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.7);letter-spacing:.02em;margin-bottom:18px;}
.breadcrumb a{color:rgba(255,255,255,.7);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span.sep{margin:0 6px;opacity:.6;}
.breadcrumb b{color:#fff;}

/* ---------- 搜索框 ---------- */
.search-block{
  margin-top:-32px;position:relative;z-index:5;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);padding:22px;
}
.search-form{display:flex;gap:12px;align-items:center;}
.search-field{
  flex:1;display:flex;align-items:center;gap:10px;
  height:48px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius-input);
  background:#FBFAF7;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-field:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,105,76,.12);}
.search-field svg{flex:0 0 auto;color:var(--ink-2);}
.search-field input{flex:1;border:0;background:transparent;outline:none;font-size:15px;}
.search-field input::placeholder{color:#9AA6A0;}
.search-hint{margin-top:12px;font-size:13px;color:var(--ink-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--bg);border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:all .2s ease;
}
.tag:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-100);}

/* ---------- 快捷入口网格 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.topic-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  position:relative;
}
.topic-card::before{
  content:"";position:absolute;left:24px;top:24px;width:34px;height:3px;border-radius:2px;
  background:var(--accent-500);opacity:0;transition:opacity .22s ease;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D6D3C8;}
.topic-card:hover::before{opacity:1;}
.topic-icon{
  width:46px;height:46px;border-radius:12px;background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;color:var(--brand-800);margin-bottom:18px;
}
.topic-card h3{font-size:19px;margin-bottom:10px;}
.topic-card p{font-size:15px;color:var(--ink-2);line-height:1.9;}
.topic-card .more{display:inline-block;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand-600);}
.topic-card .more:hover{color:var(--accent-600);}

/* ---------- FAQ 分隔线式 ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);transition:background-color .2s ease;}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px 12px 16px 4px;
  font-size:17px;font-weight:600;color:var(--brand-900);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-600);}
.faq-icon{
  position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);
  transition:background-color .22s ease,border-color .22s ease,transform .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-800);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;transition:opacity .22s ease;}
.faq-item[open] .faq-icon{background:var(--accent-500);border-color:var(--accent-500);transform:rotate(180deg);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:#fff;}
.faq-item[open] .faq-icon::after{opacity:0;}
.faq-item[open]{background:rgba(228,239,233,.35);}
.faq-answer{padding:0 56px 22px 4px;font-size:15.5px;color:var(--ink-2);line-height:1.9;}
.faq-answer p+p{margin-top:12px;}
.faq-answer ul{margin-top:12px;padding-left:22px;list-style:disc;}
.faq-answer li{margin-bottom:8px;}

/* ---------- 处理流程时间轴 ---------- */
.steps{position:relative;padding-left:28px;}
.steps::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--line);}
.step{position:relative;padding-bottom:28px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:-28px;top:8px;width:16px;height:16px;border-radius:50%;
  background:var(--surface);border:2px solid var(--line);
}
.step.is-current::before{background:var(--accent-500);border-color:var(--accent-500);}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--ink-2);}

/* ---------- 联系 CTA 窄条 ---------- */
.cta-strip{
  background:var(--dark);border-radius:20px;padding:32px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-strip h2{color:#fff;font-size:clamp(20px,2.2vw,26px);margin-bottom:10px;}
.cta-strip p{color:rgba(255,255,255,.72);font-size:15px;max-width:640px;}
.cta-strip .actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-outline-light{border:1px solid rgba(255,255,255,.5);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);margin-top:var(--space-section);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-mark{color:#fff;font-size:22px;}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);font-size:12px;margin-left:8px;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.7);font-size:14px;position:relative;padding-left:0;transition:padding-left .2s ease,color .2s ease;}
.footer-col a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;background:var(--accent-500);transition:height .2s ease;
}
.footer-col a:hover{color:#fff;padding-left:10px;}
.footer-col a:hover::before{height:12px;}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);}
.footer-bottom{
  margin-top:48px;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);
}
.footer-bottom a{color:rgba(255,255,255,.7);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  :root{--space-section:72px;}
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .cat-hero-grid{grid-template-columns:1fr;}
  .hero-side{max-width:420px;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .faq-answer{padding-right:24px;}
}
@media (max-width:640px){
  :root{--space-section:56px;}
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .site-header{top:10px;padding:0 12px;}
  .nav-shell{height:56px;padding:0 10px 0 16px;}
  .brand-mark{font-size:19px;}
  .cat-hero{padding:40px 0 36px;border-radius:16px;}
  .cat-hero .lead{font-size:15.5px;}
  .search-block{padding:16px;margin-top:-20px;}
  .search-form{flex-direction:column;align-items:stretch;}
  .topic-grid{grid-template-columns:1fr;}
  .faq-item summary{font-size:16px;}
  .faq-answer{padding-right:0;font-size:15px;}
  .cta-strip{padding:24px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}