/* roulang page: index */
:root{
  --ink:#12564A;
  --ink-deep:#0C3E35;
  --ink-light:#1B6E5F;
  --apricot:#E7A177;
  --copper:#B07A46;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --muted-bg:#FAF9F6;
  --soft-green:#EAF2EE;
  --text:#1C2422;
  --text-2:#5A6663;
  --text-3:#8A9491;
  --line:#E2DED6;
  --dark:#0E2B27;
  --dark-text:#C9D6D2;
  --success:#2F7D5C;
  --warn:#B5563A;
  --radius:14px;
  --radius-sm:10px;
  --radius-xs:8px;
  --shadow-sm:0 1px 2px rgba(14,43,39,.06);
  --shadow-md:0 1px 2px rgba(14,43,39,.06), 0 8px 24px rgba(14,43,39,.08);
  --shadow-lg:0 2px 4px rgba(14,43,39,.06), 0 16px 40px rgba(14,43,39,.12);
  --container:1160px;
  --num:"Inter","IBM Plex Sans",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--ink-deep);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px dashed var(--ink);outline-offset:3px;border-radius:4px;}
::selection{background:var(--soft-green);color:var(--ink-deep);}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.section{padding:96px 0;}
.section--tight{padding:80px 0;}
.section--xs{padding:72px 0;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,246,242,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(14,43,39,.08);background:#F7F6F2;}
.nav-inner{display:flex;align-items:center;gap:26px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);
  color:#fff;display:grid;place-items:center;font-family:var(--num);
  font-size:14px;font-weight:600;letter-spacing:-.02em;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:600;color:var(--text);letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.08em;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:10px;}
.nav-links a{
  position:relative;font-size:14px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a.is-active{color:var(--ink);}
.nav-links a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--ink);border-radius:2px;
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search-toggle{
  width:36px;height:36px;border-radius:9px;border:1px solid transparent;
  background:transparent;display:grid;place-items:center;cursor:pointer;color:var(--text-2);
  transition:all .18s ease;
}
.search-toggle:hover{background:#fff;border-color:var(--line);color:var(--ink);}
.nav-login{font-size:14px;font-weight:500;color:var(--text-2);}
.nav-login:hover{color:var(--ink);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:500;line-height:1;border:1.5px solid transparent;
  cursor:pointer;transition:all .18s ease;white-space:nowrap;
}
.btn svg{flex:0 0 auto;}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(14,43,39,.20);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--soft-green);color:var(--ink-deep);}
.btn-apricot{background:var(--apricot);color:var(--dark);}
.btn-apricot:hover{background:#DE9366;color:var(--dark);transform:translateY(-1px);box-shadow:0 8px 18px rgba(0,0,0,.18);}
.btn-apricot:active{transform:translateY(0);}
.btn-light-outline{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-light-outline:hover{background:rgba(255,255,255,.10);border-color:#fff;color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:13px;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:38px;height:38px;border-radius:9px;border:1px solid var(--line);
  background:#fff;cursor:pointer;place-items:center;color:var(--text);
}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

.search-panel{
  display:none;position:absolute;left:0;right:0;top:66px;z-index:70;
}
.search-panel.is-open{display:block;}
.search-panel__inner{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);padding:18px;display:flex;flex-direction:column;gap:12px;
}
.search-panel__field{display:flex;gap:10px;}
.search-panel__field input{
  flex:1 1 auto;height:44px;border:1px solid var(--line);border-radius:var(--radius-xs);
  padding:0 14px;font-size:14px;color:var(--text);background:var(--muted-bg);
}
.search-panel__field input:focus{outline:none;border-color:var(--ink);border-width:2px;background:#fff;}
.search-panel__tags{display:flex;flex-wrap:wrap;gap:8px;}
.search-panel__tags a{font-size:12px;padding:5px 12px;border-radius:999px;background:var(--soft-green);color:var(--ink);}
.search-panel__tags a:hover{background:#DCEDE5;color:var(--ink-deep);}

/* mobile drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,43,39,.42);opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:95;
  transform:translateX(102%);transition:transform .26s ease;display:flex;flex-direction:column;
  box-shadow:-12px 0 40px rgba(14,43,39,.18);
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer__close{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--text-2);}
.drawer__body{padding:8px 20px 20px;overflow-y:auto;flex:1 1 auto;}
.drawer__body a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);
}
.drawer__body a.drawer-link.is-active{color:var(--ink);font-weight:600;}
.drawer__actions{display:flex;flex-direction:column;gap:10px;margin-top:20px;}
body.drawer-open{overflow:hidden;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 96px;
  background-image:
    linear-gradient(rgba(18,86,74,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(18,86,74,.035) 1px,transparent 1px);
  background-size:24px 24px;
}
.hero::after{
  content:"";position:absolute;top:-90px;right:-140px;width:420px;height:420px;
  background:rgba(18,86,74,.05);transform:rotate(18deg);border-radius:60px;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;z-index:2;}
.pill{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:999px;background:var(--soft-green);color:var(--ink);
  font-size:12px;font-weight:500;letter-spacing:.02em;
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--apricot);}
h1.hero-title{
  margin-top:20px;font-size:clamp(30px,4.2vw,52px);line-height:1.18;font-weight:600;
  letter-spacing:-.005em;color:var(--text);
}
h1.hero-title em{font-style:normal;color:var(--ink);}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--text-2);max-width:34em;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:34px;}
.hero-points .point{padding:0 20px;}
.hero-points .point:first-child{padding-left:0;}
.hero-points .point + .point{border-left:1px solid var(--line);}
.hero-points .num{
  font-family:var(--num);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:600;color:var(--ink);line-height:1.2;
}
.hero-points .label{font-size:12px;color:var(--text-3);margin-top:2px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:16px;
  box-shadow:var(--shadow-md);
}
.hero-float{
  position:absolute;right:-16px;bottom:-24px;width:min(268px,82%);
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-lg);padding:16px 18px;
}
.hero-float__label{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--success);letter-spacing:.04em;}
.hero-float__label i{width:6px;height:6px;border-radius:50%;background:var(--success);display:block;}
.hero-float__title{font-size:14px;font-weight:600;color:var(--text);margin-top:6px;line-height:1.5;}
.hero-float__meta{font-size:12px;color:var(--text-3);margin-top:4px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--ink);
}
.text-link svg{transition:transform .18s ease;}
.text-link:hover svg{transform:translateX(3px);}
.hero-float .text-link{margin-top:12px;}

/* ---------- stats bar ---------- */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);padding:34px 0;}
.stat{padding:0 24px;position:relative;}
.stat:first-child{padding-left:0;}
.stat + .stat{border-left:1px solid var(--line);}
.stat__num{
  font-family:var(--num);font-variant-numeric:tabular-nums;font-size:30px;font-weight:600;
  color:var(--ink);line-height:1.1;letter-spacing:-.02em;
}
.stat__num small{font-size:14px;font-weight:500;color:var(--text-3);margin-left:2px;}
.stat__label{font-size:12px;color:var(--text-2);margin-top:8px;letter-spacing:.02em;}

/* ---------- section heading ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.sec-head__left{max-width:640px;}
.h2{
  display:flex;align-items:center;gap:10px;
  font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:600;color:var(--text);letter-spacing:-.005em;
}
.h2 .seal{
  width:18px;height:18px;border:2px solid var(--ink);border-radius:3px;
  display:grid;place-items:center;flex:0 0 auto;
}
.h2 .seal i{width:6px;height:6px;background:var(--apricot);display:block;border-radius:1px;}
.sec-desc{margin-top:12px;font-size:16px;line-height:1.75;color:var(--text-2);}

/* ---------- compare table ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--radius);-webkit-overflow-scrolling:touch;}
.compare{
  min-width:720px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.compare th,.compare td{padding:0 20px;height:56px;text-align:left;font-size:14px;vertical-align:middle;}
.compare thead th{
  background:var(--dark);color:#fff;font-weight:500;font-size:14px;height:64px;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.compare thead th:first-child{
  position:sticky;left:0;z-index:3;background:var(--dark);width:190px;
  font-weight:400;color:var(--dark-text);
}
.compare thead th.reco{position:relative;background:#12362F;}
.compare thead th.reco::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--apricot);
}
.reco-badge{
  display:inline-flex;align-items:center;height:20px;padding:0 8px;border-radius:999px;
  background:var(--apricot);color:var(--dark);font-size:10px;font-weight:600;
  letter-spacing:.04em;margin-left:8px;vertical-align:middle;
}
.compare tbody th{
  position:sticky;left:0;z-index:2;background:#fff;font-weight:400;color:var(--text);
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  width:190px;font-size:14px;
}
.compare tbody td{border-bottom:1px solid var(--line);color:var(--text-2);}
.compare tbody tr:nth-child(even) th,.compare tbody tr:nth-child(even) td{background:var(--muted-bg);}
.compare tbody td.reco{background:var(--soft-green) !important;color:var(--ink-deep);font-weight:500;}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:0;}
.icon-yes,.icon-no{display:inline-flex;align-items:center;gap:8px;}
.icon-yes svg{color:var(--ink);}
.icon-no{color:var(--text-3);}
.icon-no i{display:block;width:12px;height:2px;background:var(--text-3);border-radius:1px;}
.compare-foot{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:24px;}
.swipe-hint{display:none;font-size:12px;color:var(--text-3);margin-top:10px;}

/* ---------- tier cards (staggered) ---------- */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end;}
.tier{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.tier:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.tier--1{min-height:330px;}
.tier--2{min-height:354px;}
.tier--3{min-height:378px;border-width:1.5px;border-color:var(--ink);}
.tier__idx{
  font-family:var(--num);font-size:56px;line-height:1;font-weight:600;
  color:transparent;-webkit-text-stroke:1px rgba(18,86,74,.28);
  letter-spacing:-.03em;
}
.tier__tag{
  position:absolute;top:0;right:0;width:0;height:0;border-style:solid;
  border-width:0 46px 46px 0;border-color:transparent var(--ink) transparent transparent;
  border-top-right-radius:var(--radius);
}
.tier__name{font-size:20px;font-weight:600;color:var(--text);margin-top:14px;}
.tier__line{font-size:14px;color:var(--text-2);margin-top:6px;line-height:1.6;min-height:44px;}
.tier__list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.tier__list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);line-height:1.6;}
.tier__list svg{flex:0 0 auto;margin-top:4px;color:var(--ink);}
.tier__foot{margin-top:22px;padding-top:16px;border-top:1px solid var(--line);}

/* ---------- preview cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.preview-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease;
}
.preview-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.preview-media{position:relative;overflow:hidden;border-radius:12px 12px 0 0;}
.preview-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.preview-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:64%;
  background:linear-gradient(to bottom,rgba(255,255,255,0),rgba(255,255,255,.96));
}
.lock{
  position:absolute;left:0;right:0;bottom:12px;z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--ink);
}
.lock svg{opacity:.9;}
.lock span{font-size:11px;font-weight:500;letter-spacing:.06em;color:var(--ink);}
.preview-body{padding:20px 22px 22px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--soft-green);color:var(--ink);font-size:11px;font-weight:500;letter-spacing:.02em;
}
.badge--apricot{background:#FBEDE2;color:#8A4E23;}
.preview-body h3{font-size:16px;font-weight:600;line-height:1.5;margin-top:12px;color:var(--text);}
.preview-body p{font-size:13px;line-height:1.7;color:var(--text-2);margin-top:8px;}
.preview-meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:12px;color:var(--text-3);}

/* ---------- CMS list ---------- */
.list-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:32px;}
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#CFCBC1;}
.post-card__cover{display:block;overflow:hidden;}
.post-card__cover img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px 12px 0 0;transition:transform .3s ease;}
.post-card:hover .post-card__cover img{transform:scale(1.03);}
.post-card__body{padding:20px 22px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-card__body h3{font-size:16px;font-weight:600;line-height:1.55;margin-top:12px;color:var(--text);}
.post-card__body h3 a{color:inherit;}
.post-card:hover .post-card__body h3{color:var(--ink);}
.post-card__excerpt{font-size:13.5px;line-height:1.7;color:var(--text-2);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card__meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3);
}
.post-card__meta time{font-family:var(--num);font-variant-numeric:tabular-nums;}
.post-card__meta .arrow{display:inline-flex;align-items:center;gap:5px;color:var(--ink);font-size:12px;font-weight:500;}
.empty-state{
  grid-column:1/-1;background:var(--muted-bg);border:1px dashed var(--line);border-radius:var(--radius);
  padding:48px 24px;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;
}
.empty-state svg{color:var(--text-3);}
.empty-state p{font-size:14px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-aside .h2{margin-bottom:14px;}
.faq-aside p{font-size:15px;line-height:1.8;color:var(--text-2);}
.faq-aside .text-link{margin-top:18px;}
.accordion{border:0;background:transparent;margin:0;}
.accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease;
}
.accordion-item.is-active{border-color:var(--ink);}
.accordion-title{
  display:block;padding:16px 50px 16px 18px;font-size:16px;font-weight:500;line-height:1.6;
  color:var(--text);border:0;position:relative;background:transparent;
}
.accordion-title:hover{color:var(--ink);}
.accordion-item.is-active .accordion-title{color:var(--ink);}
.accordion-title::before{
  content:"";position:absolute;right:20px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease,border-color .2s ease;border-radius:1px;
}
.accordion-item.is-active .accordion-title::before{
  transform:translateY(-30%) rotate(225deg);border-color:var(--ink);
}
.accordion-content{padding:0 18px;font-size:15px;line-height:1.85;color:var(--text-2);border:0;}
.accordion-content p{margin-bottom:14px;}
.accordion-item.is-active .accordion-content{display:block;}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--dark);color:#fff;position:relative;overflow:hidden;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative;z-index:2;}
.cta-grid h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:600;color:#fff;letter-spacing:-.005em;}
.cta-grid p.lead{margin-top:14px;font-size:16px;line-height:1.8;color:var(--dark-text);max-width:32em;}
.cta-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:22px;}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--dark-text);}
.cta-points svg{color:var(--apricot);}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-actions .row{display:flex;gap:12px;flex-wrap:wrap;}
.cta-note{font-size:12px;color:rgba(201,214,210,.75);text-align:center;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--dark-text);border-top:1px solid var(--copper);}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 48px;
}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.footer-brand .brand-sub{color:rgba(201,214,210,.7);}
.footer-brand p{font-size:13px;line-height:1.8;color:rgba(201,214,210,.82);margin-top:16px;max-width:24em;}
.footer-brand .kw{display:inline-block;margin-top:14px;font-size:12px;color:var(--apricot);letter-spacing:.04em;}
.footer-col h4{font-size:13px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;color:var(--dark-text);position:relative;display:inline-block;padding-left:0;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col a:hover{color:#fff;padding-left:12px;}
.footer-col a:hover::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:2px;background:var(--apricot);border-radius:1px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:12px;color:rgba(201,214,210,.7);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom a{color:rgba(201,214,210,.7);}
.footer-bottom a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .hero-grid{gap:40px;}
  .faq-grid{gap:40px;}
  .cta-grid{gap:40px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:grid;}
  .nav-actions .nav-login{display:none;}
  .hero-grid{grid-template-columns:7fr 5fr;gap:32px;}
  .stats__grid{grid-template-columns:repeat(4,1fr);}
  .posts{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .tiers{grid-template-columns:repeat(3,1fr);gap:16px;}
  .tier--1,.tier--2,.tier--3{min-height:0;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:80px 0;}
  .section--tight{padding:64px 0;}
}
@media (max-width:768px){
  .nav-inner{height:56px;}
  .hero{padding:40px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{aspect-ratio:16/10;}
  .hero-float{right:8px;bottom:-18px;}
  .hero-points{margin-top:26px;}
  .hero-points .point{padding:0 14px;}
  .hero-points .num{font-size:19px;}
  .stats__grid{grid-template-columns:repeat(2,1fr);row-gap:24px;}
  .stat{padding:0 16px;}
  .stat:nth-child(odd){padding-left:0;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .stats{border-bottom:0;}
  .posts,.grid-3,.grid-2{grid-template-columns:1fr;}
  .tiers{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .swipe-hint{display:block;}
  .compare thead th:first-child,.compare tbody th{width:150px;font-size:13px;padding:0 14px;}
  .compare th,.compare td{padding:0 14px;font-size:13px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section--xs{padding:48px 0;}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{height:46px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-name{font-size:15px;}
  h1.hero-title{font-size:29px;}
  .hero-sub{font-size:15px;}
  .hero-cta .btn{width:100%;}
  .hero-cta{flex-direction:column;}
  .hero-float{position:static;width:100%;margin-top:14px;right:auto;bottom:auto;}
  .cta-actions .row .btn{width:100%;}
  .stat__num{font-size:24px;}
  .footer-grid{gap:28px;}
  .tier{padding:22px 18px;}
  .preview-body{padding:16px 18px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .tier:hover,.post-card:hover,.preview-card:hover{transform:none;}
}

/* roulang page: article */
:root{
  --green:#12564A;
  --green-dark:#0C3E35;
  --green-light:#1B6E5F;
  --green-soft:#EAF2EE;
  --apricot:#E7A177;
  --copper:#B07A46;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --soft:#FAF9F6;
  --ink:#1C2422;
  --ink-2:#5A6663;
  --ink-3:#8A9491;
  --line:#E2DED6;
  --deep:#0E2B27;
  --deep-2:#0C3E35;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(14,43,39,.05);
  --shadow-md:0 1px 2px rgba(14,43,39,.05),0 8px 24px rgba(14,43,39,.06);
  --shadow-lg:0 2px 4px rgba(14,43,39,.06),0 14px 36px rgba(14,43,39,.10);
  --container:1180px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--green-light);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--green);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px dashed var(--green);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:500;line-height:1;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;text-align:center;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 1px 2px rgba(14,43,39,.12);}
.btn-primary:hover{background:var(--green-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(14,43,39,.18);}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(14,43,39,.14);}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green);}
.btn-ghost:hover{background:var(--green-soft);color:var(--green-dark);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:9px;}
.btn-lg{height:48px;padding:0 26px;font-size:15px;}.
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--green);}
.link-arrow svg{transition:transform var(--ease);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{background:rgba(255,255,255,.97);box-shadow:0 4px 18px rgba(14,43,39,.07);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--green);color:#fff;
  display:grid;place-items:center;font-family:"Inter","IBM Plex Sans",Helvetica,Arial,sans-serif;
  font-size:12px;font-weight:600;letter-spacing:.02em;flex-shrink:0;
}
.brand-copy{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15px;font-weight:600;letter-spacing:-.005em;color:var(--ink);white-space:nowrap;}
.brand-sub{font-size:11px;color:var(--ink-3);margin-top:3px;letter-spacing:.04em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:14px;}
.nav-links a{
  position:relative;font-size:14px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;transition:color var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--green);
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--green);}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--green);}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto;position:relative;}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;
  background:transparent;border:1px solid transparent;border-radius:9px;
  color:var(--ink-2);cursor:pointer;transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:var(--green-soft);color:var(--green);border-color:#D9E6E0;}
.nav-login{font-size:14px;font-weight:500;color:var(--ink-2);white-space:nowrap;}
.nav-login:hover{color:var(--green);}
.hamburger{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:9px;
  background:#fff;cursor:pointer;place-items:center;color:var(--ink);
}
.search-pop{
  position:absolute;top:calc(100% + 14px);right:0;width:320px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-lg);padding:14px;display:none;z-index:70;
}
.search-pop.is-open{display:block;}
.search-pop label{display:block;font-size:12px;color:var(--ink-3);margin-bottom:8px;}
.search-pop input{
  width:100%;height:42px;border:1px solid var(--line);border-radius:8px;
  padding:0 12px;font-size:14px;color:var(--ink);background:var(--soft);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-pop input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(18,86,74,.10);}
.search-hints{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.search-hints span{font-size:12px;color:var(--green);background:var(--green-soft);border-radius:999px;padding:4px 10px;}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;pointer-events:none;}
.drawer::before{content:"";position:absolute;inset:0;background:rgba(14,43,39,.38);opacity:0;transition:opacity .2s ease;}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(320px,86vw);
  background:#fff;padding:22px;display:flex;flex-direction:column;gap:4px;
  transform:translateX(100%);transition:transform .24s ease;
  box-shadow:-8px 0 30px rgba(14,43,39,.14);overflow-y:auto;
}
.drawer.is-open{pointer-events:auto;}
.drawer.is-open::before{opacity:1;}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-close{
  align-self:flex-end;width:38px;height:38px;border-radius:9px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--ink);margin-bottom:8px;
}
.drawer-link{
  display:block;padding:12px 10px;border-radius:9px;font-size:15px;color:var(--ink);
  border-bottom:1px solid #F1EFE9;
}
.drawer-link:hover{background:var(--soft);color:var(--green);}
.drawer .btn{margin-top:16px;width:100%;}
.drawer-sub{font-size:12px;color:var(--ink-3);padding:10px 10px 0;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:26px 0 0;font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb .sep{color:#C6C1B6;}
.breadcrumb .current{color:var(--ink-3);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-hero{padding:22px 0 0;}
.article-head{max-width:820px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:500;background:var(--green-soft);color:var(--green);
  letter-spacing:.02em;white-space:nowrap;
}
.badge-accent{background:#FBEDE3;color:#8A4B25;}
.article-title{
  font-size:clamp(26px,3.6vw,40px);line-height:1.3;font-weight:600;letter-spacing:-.005em;
  margin:16px 0 0;color:var(--ink);overflow-wrap:break-word;
}
.article-lead{font-size:17px;line-height:1.8;color:var(--ink-2);margin-top:14px;max-width:760px;}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;
  margin-top:20px;padding-bottom:20px;border-bottom:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#CFCABF;display:inline-block;}
.article-meta strong{color:var(--ink-2);font-weight:500;}

/* ---------- 文章布局 ---------- */
.article-main{padding:32px 0 0;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:48px;
  max-width:1040px;margin:0 auto;align-items:start;
}
.article-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:36px 40px 40px;
}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--ink);letter-spacing:.01em;word-break:break-word;}
.article-body p{margin:0 0 1.25em;}
.article-body h1{font-size:28px;line-height:1.35;margin:34px 0 14px;font-weight:600;}
.article-body h2{
  font-size:26px;line-height:1.4;font-weight:600;margin:36px 0 14px;
  padding-left:14px;border-left:4px solid var(--green);color:var(--ink);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:26px 0 10px;color:var(--ink);}
.article-body h4{font-size:17px;font-weight:600;margin:20px 0 8px;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.25em;}
.article-body ul li{list-style:disc;margin-bottom:8px;}
.article-body ol li{list-style:decimal;margin-bottom:8px;}
.article-body li::marker{color:var(--green-light);}
.article-body blockquote{
  margin:1.5em 0;padding:18px 20px;background:var(--soft);
  border-left:3px solid var(--apricot);border-radius:0 10px 10px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{width:100%;height:auto;border-radius:12px;margin:1.5em 0;}
.article-body figure{margin:1.5em 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body a{color:var(--green-light);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--green);}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;}
.article-body .table-wrap,.article-body table{overflow-x:auto;display:block;}
.article-body th{background:var(--deep);color:#fff;text-align:left;padding:12px 14px;font-weight:500;white-space:nowrap;}
.article-body td{padding:12px 14px;border-top:1px solid var(--line);vertical-align:top;}
.article-body tbody tr:nth-child(even){background:var(--soft);}
.article-body code{background:#EFEEE9;padding:2px 6px;border-radius:6px;font-size:.92em;font-family:"IBM Plex Mono",Consolas,monospace;}
.article-body pre{background:#12332D;color:#E6F1ED;padding:18px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

/* ---------- 文末 ---------- */
.article-foot{margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.tag-row .label{font-size:13px;color:var(--ink-3);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--soft);border:1px solid var(--line);font-size:12px;color:var(--ink-2);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.tag:hover{background:var(--green-soft);color:var(--green);border-color:#D5E5DE;}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:13px;color:var(--ink-3);}
.share-row a{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2);
  border:1px solid var(--line);border-radius:999px;padding:5px 12px;background:#fff;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.share-row a:hover{color:var(--green);border-color:var(--green-light);background:var(--green-soft);}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:16px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:18px;
}
.side-card h3{font-size:13px;font-weight:600;color:var(--ink);letter-spacing:.04em;margin-bottom:12px;}
#tocList{display:flex;flex-direction:column;gap:2px;}
#tocList a{
  display:block;font-size:13px;line-height:1.5;color:var(--ink-2);padding:6px 0 6px 12px;
  border-left:2px solid transparent;transition:color var(--ease),border-color var(--ease);
}
#tocList a:hover{color:var(--green);border-left-color:var(--green);}
.side-links{display:flex;flex-direction:column;gap:8px;}
.side-links a{font-size:13px;color:var(--ink-2);display:flex;align-items:center;justify-content:space-between;gap:8px;}
.side-links a:hover{color:var(--green);}
.side-note{font-size:12px;line-height:1.7;color:var(--ink-3);margin-top:10px;}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--soft);border:1px dashed var(--line);border-radius:var(--radius);
  padding:48px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:#fff;
  border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-3);
}
.empty-state h2{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--ink-2);line-height:1.8;max-width:420px;margin:0 auto 20px;}

/* ---------- 相关推荐 ---------- */
.section{padding:64px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;}
.section-head h2{
  font-size:24px;line-height:1.35;font-weight:600;display:flex;align-items:center;gap:10px;
}
.seal{width:18px;height:18px;border:2px solid var(--green);display:inline-grid;place-items:center;flex-shrink:0;}
.seal::after{content:"";width:6px;height:6px;background:var(--apricot);display:block;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D5E0DA;}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#EDEAE3;}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:16px;line-height:1.55;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover h3{color:var(--green);}
.post-card .excerpt{font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:12px;border-top:1px solid #F0EDE6;font-size:13px;color:var(--ink-3);}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ---------- 底部小 CTA ---------- */
.narrow-cta{margin-top:64px;}
.narrow-inner{
  background:var(--green-soft);border:1px solid #D8E7E0;border-radius:var(--radius);
  padding:30px 32px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.narrow-inner h2{font-size:20px;font-weight:600;color:var(--green-dark);line-height:1.45;}
.narrow-inner p{font-size:14px;color:#3F5B53;margin-top:6px;}
.narrow-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:#C9D6D2;margin-top:80px;border-top:1px solid var(--copper);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:56px 0 40px;
}
.footer-col h4{font-size:13px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#C9D6D2;position:relative;transition:color var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-brand .brand-name{font-size:16px;font-weight:600;color:#fff;display:block;letter-spacing:-.005em;}
.footer-brand .brand-sub{font-size:11px;color:#8FA8A1;letter-spacing:.06em;display:block;margin-top:4px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9BEB7;margin-top:14px;max-width:280px;}
.footer-brand .kw{display:inline-block;font-size:12px;color:#8FA8A1;margin-top:12px;border:1px solid #27473F;border-radius:999px;padding:4px 12px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0 28px;border-top:1px solid #22423A;font-size:13px;color:#8FA8A1;
}
.footer-bottom .links{display:flex;gap:20px;}
.footer-bottom a{color:#8FA8A1;font-size:13px;}
.footer-bottom a:hover{color:#fff;}
@media (min-width:1025px){
  .footer-col a:hover::before{
    content:"";display:inline-block;width:6px;height:1px;background:var(--apricot);
    vertical-align:middle;margin-right:6px;
  }
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);max-width:820px;gap:0;}
  .article-side{display:none;}
}
@media (max-width:1024px){
  .container{padding:0 20px;}
  .nav-links{gap:20px;margin-left:6px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .article-panel{padding:28px 26px 32px;}
}
@media (max-width:768px){
  .nav-links,.nav-actions .nav-login,.nav-actions .btn{display:none;}
  .hamburger{display:grid;}
  .header-inner{height:56px;gap:12px;}
  .breadcrumb{padding-top:18px;}
  .article-hero{padding-top:16px;}
  .article-lead{font-size:16px;}
  .article-panel{padding:22px 20px 26px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:22px;margin-top:30px;}
  .article-body h3{font-size:18px;}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .section{padding-top:48px;}
  .narrow-inner{padding:24px 20px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:26px;padding:40px 0 30px;}
  .footer-brand{grid-column:1 / -1;}
  .site-footer{margin-top:56px;}
  .search-pop{width:min(300px,calc(100vw - 40px));right:-8px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-sub{display:none;}
  .article-title{font-size:23px;}
  .article-meta{gap:6px 12px;font-size:12px;}
  .btn{width:100%;}
  .narrow-actions{width:100%;}
  .back-row .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom .links{gap:16px;}
  .article-body{font-size:15.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --ink:#12564A;
  --ink-dark:#0C3E35;
  --ink-bright:#1B6E5F;
  --sand:#E7A177;
  --copper:#B07A46;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --soft:#FAF9F6;
  --tint:#EAF2EE;
  --text:#1C2422;
  --muted:#5A6663;
  --faint:#8A9491;
  --line:#E2DED6;
  --dark:#0E2B27;
  --radius:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(14,43,39,.06);
  --shadow-md:0 1px 2px rgba(14,43,39,.06),0 8px 24px rgba(14,43,39,.06);
  --shadow-lg:0 2px 6px rgba(14,43,39,.08),0 18px 44px rgba(14,43,39,.10);
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;border-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--text);letter-spacing:-.005em;line-height:1.32;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--ink);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--ink-dark);}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px dashed var(--ink);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,246,242,.96);
  border-bottom:1px solid var(--line);transition:box-shadow var(--ease),background var(--ease);}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(14,43,39,.08);background:rgba(255,255,255,.97);}
.header-inner{display:flex;align-items:center;gap:26px;height:64px;}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.15;flex:0 0 auto;}
.brand-name{font-size:17px;font-weight:600;color:var(--ink-dark);letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--faint);letter-spacing:.04em;}
.nav-links{display:flex;align-items:center;gap:28px;flex-wrap:wrap;}
.nav-links a{position:relative;font-size:14px;font-weight:500;color:var(--text);padding:20px 0;white-space:nowrap;}
.nav-links a:hover{color:var(--ink);}
.nav-links a.is-active{color:var(--ink-dark);}
.nav-links a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;background:var(--ink);border-radius:2px;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.icon-btn{width:36px;height:36px;display:grid;place-items:center;border-radius:9px;color:var(--muted);transition:all var(--ease);}
.icon-btn:hover{background:var(--tint);color:var(--ink);}
.login-link{font-size:14px;font-weight:500;color:var(--text);padding:6px 2px;}
.login-link:hover{color:var(--ink);}
.menu-toggle{display:none;width:40px;height:40px;place-items:center;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-dark);}
.menu-toggle:hover{background:var(--tint);}

/* 搜索浮层 */
.search-panel{display:none;border-top:1px solid var(--line);background:#fff;box-shadow:0 14px 28px rgba(14,43,39,.08);}
.search-panel.is-open{display:block;}
.search-inner{padding:18px 0 22px;}
.search-field{display:flex;gap:10px;}
.search-field input{flex:1;height:44px;border:1px solid var(--line);border-radius:8px;padding:0 14px;font-size:14px;background:var(--soft);color:var(--text);}
.search-field input:focus{outline:none;border:2px solid var(--ink);background:#fff;}
.suggest{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.suggest span{font-size:12px;color:var(--faint);}
.suggest a{font-size:12px;padding:5px 12px;border-radius:999px;background:var(--tint);color:var(--ink);}
.suggest a:hover{background:#DDEAE4;}

/* 移动端抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(14,43,39,.42);opacity:0;visibility:hidden;transition:all var(--ease);z-index:90;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;background:#fff;z-index:95;
  transform:translateX(102%);transition:transform 220ms ease;padding:22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-head .brand-name{font-size:16px;}
.drawer-close{width:36px;height:36px;display:grid;place-items:center;border-radius:9px;background:var(--soft);color:var(--ink-dark);}
.mobile-drawer a.drawer-link{padding:12px 10px;border-radius:10px;font-size:15px;color:var(--text);}
.mobile-drawer a.drawer-link:hover,.mobile-drawer a.drawer-link.is-active{background:var(--tint);color:var(--ink-dark);font-weight:500;}
.drawer-divider{height:1px;background:var(--line);margin:12px 0;}

/* ---------- 按钮 / 徽章 / 文字链 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--radius-btn);font-size:14px;font-weight:500;line-height:1;border:1.5px solid transparent;
  transition:all var(--ease);white-space:nowrap;}
.btn svg{flex:0 0 auto;}
.btn-primary{background:var(--ink);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--ink-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(14,43,39,.20);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--tint);color:var(--ink-dark);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;}
.btn-lg{height:48px;padding:0 26px;font-size:15px;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--tint);color:var(--ink);font-size:12px;font-weight:500;letter-spacing:.02em;}
.badge-sand{background:#FBEAE0;color:#8A4B23;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--ink);}
.text-link svg{transition:transform var(--ease);}
.text-link:hover{color:var(--ink-dark);}
.text-link:hover svg{transform:translateX(3px);}
.seal{width:18px;height:18px;border:2px solid var(--ink);border-radius:3px;display:grid;place-items:center;flex:0 0 auto;}
.seal::before{content:"";width:6px;height:6px;background:var(--sand);border-radius:1px;}
.sec-head{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.sec-note{font-size:15px;color:var(--muted);margin-bottom:24px;max-width:640px;}

/* ---------- 页头 ---------- */
.page-hero{position:relative;padding:38px 0 42px;background:var(--soft);border-bottom:1px solid var(--line);overflow:hidden;}
.page-hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;opacity:.10;}
.page-hero::after{content:"";position:absolute;top:-60px;right:-80px;width:320px;height:320px;background:rgba(18,86,74,.05);
  transform:rotate(24deg);border-radius:48px;pointer-events:none;}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--text);font-weight:500;}
.hero-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.hero-copy{max-width:720px;}
.hero-copy .badge{margin-bottom:14px;}
.page-hero h1{font-size:clamp(28px,3.6vw,42px);line-height:1.24;color:var(--ink-dark);margin-bottom:14px;}
.page-hero .lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:660px;margin:0;}
.hero-back{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--ink);
  padding:10px 18px;border:1.5px solid var(--line);border-radius:999px;background:#fff;transition:all var(--ease);}
.hero-back:hover{border-color:var(--ink);background:var(--tint);color:var(--ink-dark);}

/* ---------- 版式 ---------- */
.guide-body{padding:52px 0 0;}
.guide-layout{display:flex;flex-wrap:wrap;gap:36px;align-items:flex-start;}
.guide-aside{flex:0 0 258px;width:258px;}
.guide-main{flex:1 1 0;min-width:0;}

.anchor-nav{position:sticky;top:88px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 16px;box-shadow:var(--shadow-sm);}
.anchor-nav h2{font-size:12px;letter-spacing:.08em;color:var(--faint);font-weight:600;margin:0 0 12px 10px;}
.anchor-nav a{display:block;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--muted);
  border-left:2px solid transparent;transition:all var(--ease);}
.anchor-nav a:hover{background:var(--soft);color:var(--ink);}
.anchor-nav a.is-active{background:var(--tint);color:var(--ink-dark);border-left-color:var(--ink);font-weight:500;}

.mini-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:44px;overflow:hidden;}
.mini-stats .stat{padding:18px 16px;text-align:center;border-right:1px solid var(--line);}
.mini-stats .stat:last-child{border-right:0;}
.mini-stats .num{display:block;font-size:26px;font-weight:600;color:var(--ink-dark);line-height:1.2;
  font-variant-numeric:tabular-nums;font-family:"Inter","IBM Plex Sans",Helvetica,Arial,sans-serif;}
.mini-stats .label{font-size:12px;color:var(--faint);}

.block{margin-bottom:56px;scroll-margin-top:88px;}
.block-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:10px;}
.block-title{display:flex;align-items:center;gap:10px;}
.block-title h2{font-size:clamp(21px,2.4vw,26px);color:var(--ink-dark);}
.block-head .text-link{font-size:13px;}

/* 图文卡 */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-md);
  overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);display:flex;flex-direction:column;}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#D5D0C6;}
.card-media{display:block;overflow:hidden;background:var(--soft);}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img) var(--radius-img) 0 0;
  transition:transform 320ms ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.card-body h3{font-size:17px;line-height:1.5;}
.card-body h3 a{color:var(--text);}
.card:hover .card-body h3 a{color:var(--ink);}
.card-body p{font-size:14px;line-height:1.7;color:var(--muted);margin:0;}
.card-foot{margin-top:auto;padding-top:6px;}

/* 步骤时间线 */
.steps{border-left:2px solid var(--line);margin-left:7px;padding-left:26px;display:flex;flex-direction:column;gap:26px;}
.step{position:relative;}
.step::before{content:"";position:absolute;left:-34px;top:8px;width:10px;height:10px;border-radius:50%;
  background:var(--ink);box-shadow:0 0 0 4px var(--bg);}
.step .num{font-family:"Inter","IBM Plex Sans",Helvetica,Arial,sans-serif;font-size:12px;font-weight:600;
  color:var(--sand);letter-spacing:.08em;display:block;margin-bottom:4px;}
.step h3{font-size:17px;margin-bottom:6px;color:var(--ink-dark);}
.step p{font-size:14.5px;color:var(--muted);margin:0;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:border-color var(--ease);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;
  padding:16px 18px;font-size:15.5px;font-weight:500;line-height:1.6;color:var(--text);cursor:pointer;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{transition:transform var(--ease);color:var(--faint);flex:0 0 auto;}
.faq-item[open]{border-color:var(--ink);}
.faq-item[open] summary{color:var(--ink-dark);}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--ink);}
.faq-item .answer{padding:0 18px 16px;font-size:14.5px;line-height:1.85;color:var(--muted);}

/* 相关分类胶囊 */
.pill-group{display:flex;flex-wrap:wrap;gap:10px;}
.pill{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:14px;color:var(--text);transition:all var(--ease);box-shadow:var(--shadow-sm);}
.pill:hover{border-color:var(--ink);color:var(--ink-dark);background:var(--tint);transform:translateY(-2px);}
.pill svg{color:var(--ink);}

/* CTA */
.cta-band{background:var(--tint);border:1px solid #D9E7E1;border-radius:16px;padding:34px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(20px,2.2vw,24px);color:var(--ink-dark);margin-bottom:8px;}
.cta-band p{font-size:14.5px;color:var(--muted);margin:0;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

.back-links{display:flex;flex-wrap:wrap;gap:14px;align-items:center;padding:26px 0 0;border-top:1px solid var(--line);margin-top:8px;}
.back-links .label{font-size:13px;color:var(--faint);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C9D6D2;margin-top:88px;border-top:1px solid var(--copper);padding:56px 0 22px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand-name{display:block;color:#fff;font-size:18px;font-weight:600;}
.footer-brand .brand-sub{display:block;font-size:11px;color:var(--sand);letter-spacing:.06em;margin-top:2px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#C9D6D2;margin:14px 0 12px;max-width:300px;}
.footer-brand .kw{font-size:12px;color:#8FA9A2;letter-spacing:.04em;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{position:relative;font-size:14px;color:#C9D6D2;padding-left:0;transition:all var(--ease);}
.footer-col a:hover{color:#fff;padding-left:12px;}
.footer-col a:hover::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:1.5px;background:var(--sand);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;font-size:13px;color:#8FA9A2;}
.footer-bottom .links{display:flex;gap:20px;}
.footer-bottom a{color:#8FA9A2;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .guide-layout{flex-direction:column;gap:24px;}
  .guide-aside{width:100%;flex:1 1 auto;}
  .anchor-nav{position:static;display:flex;align-items:center;gap:8px;overflow-x:auto;padding:10px;
    border-radius:12px;scrollbar-width:none;}
  .anchor-nav::-webkit-scrollbar{display:none;}
  .anchor-nav h2{display:none;}
  .anchor-nav a{white-space:nowrap;border-left:0;border-bottom:2px solid transparent;border-radius:8px;padding:8px 14px;}
  .anchor-nav a.is-active{border-bottom-color:var(--ink);}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:860px){
  .nav-links,.nav-actions{display:none;}
  .menu-toggle{display:grid;margin-left:auto;}
  .header-inner{height:58px;}
  .mini-stats{grid-template-columns:repeat(2,1fr);}
  .mini-stats .stat:nth-child(2){border-right:0;}
  .mini-stats .stat:nth-child(1),.mini-stats .stat:nth-child(2){border-bottom:1px solid var(--line);}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .guide-body{padding-top:36px;}
  .block{margin-bottom:44px;}
  .page-hero{padding:28px 0 32px;}
  .hero-row{gap:18px;}
  .hero-back{width:100%;justify-content:center;}
  .anchor-nav{border-radius:10px;}
  .cta-band{padding:26px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .site-footer{margin-top:64px;padding-top:44px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .mini-stats{grid-template-columns:1fr 1fr;}
  .mini-stats .num{font-size:22px;}
  .card-body{padding:16px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .block-title h2{font-size:20px;}
  .btn{width:100%;}
  .hero-back{width:100%;}
  .faq-item summary{font-size:15px;padding:14px 15px;}
  .steps{padding-left:20px;}
  .step::before{left:-28px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .card:hover,.btn-primary:hover,.pill:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --green:#12564A;
  --green-dark:#0C3E35;
  --green-light:#1B6E5F;
  --apricot:#E7A177;
  --copper:#B07A46;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --subtle:#FAF9F6;
  --text:#1C2422;
  --muted:#5A6663;
  --faint:#8A9491;
  --line:#E2DED6;
  --deep:#0E2B27;
  --on-deep:#FFFFFF;
  --on-deep-muted:#C9D6D2;
  --ok:#2F7D5C;
  --warn:#B5563A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:8px;
  --sh-card:0 1px 2px rgba(14,43,39,.05),0 8px 24px rgba(14,43,39,.06);
  --sh-card-hover:0 2px 5px rgba(14,43,39,.08),0 14px 32px rgba(14,43,39,.12);
  --container:1180px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","IBM Plex Sans",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--green);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--green-dark)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:-.005em;color:var(--text)}
button{font-family:inherit}
:focus-visible{outline:2px dashed var(--green);outline-offset:3px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(14,43,39,.08)}
.site-header .container{position:relative}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.15;flex:0 0 auto}
.brand-name{font-size:18px;font-weight:600;color:var(--green);letter-spacing:.01em}
.brand-sub{font-size:12px;color:var(--faint);margin-top:2px;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto;margin-right:auto}
.nav-links a{position:relative;font-size:14px;font-weight:500;color:var(--text);padding:6px 0;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--green);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.nav-links a:hover{color:var(--green)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--green)}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.icon-btn{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;border-radius:8px;background:transparent;color:var(--muted);
  cursor:pointer;transition:background .18s ease,color .18s ease;
}
.icon-btn:hover{background:#EAF2EE;color:var(--green)}
.nav-login{font-size:14px;font-weight:500;color:var(--green);padding:6px 2px;white-space:nowrap}
.nav-login:hover{color:var(--green-dark)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;font-family:inherit;
  border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--green);color:#FFFFFF;border-color:var(--green)}
.btn-primary:hover{background:var(--green-dark);border-color:var(--green-dark);color:#FFFFFF;transform:translateY(-1px);box-shadow:0 8px 20px rgba(12,62,53,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:transparent;color:var(--green);border-color:var(--green)}
.btn-outline:hover{background:#EAF2EE;color:var(--green-dark)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--green)}
.btn-link svg{transition:transform .18s ease}
.btn-link:hover svg{transform:translateX(3px)}
.nav-toggle{display:none;width:38px;height:38px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;background:#FFFFFF;color:var(--green);cursor:pointer}

/* search pop */
.search-pop{
  position:absolute;top:calc(100% + 10px);right:24px;width:330px;max-width:calc(100vw - 32px);
  background:#FFFFFF;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 12px 34px rgba(14,43,39,.14);padding:16px;display:none;z-index:70;
}
.search-pop.is-open{display:block}
.search-pop label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.search-pop input{
  width:100%;height:42px;padding:0 12px;border:1px solid var(--line);border-radius:var(--r-input);
  font-family:inherit;font-size:14px;color:var(--text);background:#FFFFFF;
}
.search-pop input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 2px rgba(18,86,74,.14)}
.search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.search-tags a{font-size:12px;color:var(--green);background:#EAF2EE;border-radius:999px;padding:5px 12px}
.search-tags a:hover{background:#DCEBE3}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(14,43,39,.42);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#FFFFFF;z-index:95;
  padding:22px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;
  transform:translateX(100%);visibility:hidden;transition:transform .26s ease,visibility .26s ease;
  box-shadow:-10px 0 40px rgba(14,43,39,.16);
}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:10px}
.drawer-head .brand-name{font-size:17px}
.drawer-close{width:34px;height:34px;border:1px solid var(--line);border-radius:8px;background:#FFFFFF;color:var(--muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.drawer a.drawer-link{display:block;padding:13px 2px;font-size:15px;font-weight:500;color:var(--text);border-bottom:1px solid var(--line)}
.drawer a.drawer-link:hover{color:var(--green)}
.drawer .btn{margin-top:16px;width:100%}
.drawer .drawer-sub{margin-top:8px;font-size:13px;color:var(--faint)}

/* ============ Hero ============ */
.page-hero{padding:26px 0 8px;background:
  radial-gradient(circle at 88% 0%,rgba(18,86,74,.05),rgba(18,86,74,0) 46%),
  linear-gradient(180deg,#FBFAF7 0%,var(--bg) 100%);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb .sep{color:#C6CDC9}
.breadcrumb .current{color:var(--text);font-weight:500}
.hero-split{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;padding:34px 0 12px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:#EAF2EE;color:var(--green);font-size:12px;font-weight:500;letter-spacing:.02em;
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--apricot)}
h1{font-size:clamp(28px,3.7vw,44px);line-height:1.22;margin:16px 0 0;font-weight:600}
.hero-lead{margin-top:16px;font-size:17px;line-height:1.75;color:var(--muted);max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-back{margin-top:22px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:16px;
  box-shadow:0 18px 44px rgba(14,43,39,.14);
}
.hero-media .media-tag{
  position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.94);
  border-radius:10px;padding:10px 14px;box-shadow:0 6px 18px rgba(14,43,39,.16);
  font-size:12px;color:var(--green-dark);font-weight:500;backdrop-filter:blur(2px);
}

/* ============ Sections ============ */
.section{padding:72px 0;scroll-margin-top:88px}
.section-subtle{background:var(--subtle);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;flex-wrap:wrap}
.section-title{
  display:inline-flex;align-items:center;gap:10px;
  font-size:clamp(21px,2.4vw,29px);line-height:1.3;
}
.section-title::before{
  content:"";flex:0 0 auto;width:18px;height:18px;border:2px solid var(--green);border-radius:3px;
  background:linear-gradient(var(--apricot),var(--apricot)) center/6px 6px no-repeat;
}
.section-desc{margin-top:10px;font-size:16px;color:var(--muted);max-width:42em}

/* ============ Compare table ============ */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);
  background:#FFFFFF;box-shadow:var(--sh-card);-webkit-overflow-scrolling:touch;
}
table.compare{width:100%;min-width:780px;border-collapse:collapse;font-size:15px}
table.compare caption{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
table.compare thead th{
  background:#EAF2EE;color:var(--green-dark);font-size:14px;font-weight:600;
  padding:18px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare thead th.reco{
  background:#DDEBE4;box-shadow:inset 0 3px 0 var(--apricot);position:relative;
}
.pill-reco{
  display:inline-block;margin-left:8px;padding:1px 9px;border-radius:999px;
  background:var(--apricot);color:var(--deep);font-size:11px;font-weight:600;vertical-align:1px;
}
table.compare tbody th{
  text-align:left;font-weight:500;color:var(--green-dark);font-size:14.5px;
  padding:16px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
  position:sticky;left:0;background:#FFFFFF;z-index:2;
}
table.compare tbody td{
  padding:16px 18px;border-bottom:1px solid var(--line);color:var(--text);vertical-align:middle;
}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:nth-child(even){background:var(--subtle)}
table.compare tbody tr:nth-child(even) th{background:var(--subtle)}
table.compare tbody tr:hover{background:#F4F8F5}
table.compare tbody tr:hover th{background:#F4F8F5}
table.compare tbody td.reco{background:#F0F8F4;color:var(--green-dark);font-weight:500}
table.compare .ic{display:inline-block;vertical-align:-3px;margin-right:6px}
.ic-ok{color:var(--ok)}
.ic-no{color:#B3BDB9}
.hint-scroll{display:none;margin-top:10px;font-size:13px;color:var(--faint)}
.compare-foot{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:24px}
.compare-foot .note{font-size:14px;color:var(--muted)}

/* ============ Info cards ============ */
.cards-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.info-card{
  position:relative;background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--sh-card-hover);border-color:#CFE0D8}
.card-num{
  font-family:var(--font-num);font-size:44px;font-weight:600;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(18,86,74,.34);letter-spacing:.02em;
  display:block;margin-bottom:14px;
}
.info-card h3{font-size:19px;margin-bottom:10px}
.info-card .card-sub{font-size:14.5px;color:var(--muted);line-height:1.8}
.check-list{margin-top:16px;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:var(--muted)}
.check-list li svg{flex:0 0 auto;margin-top:5px;color:var(--green-light)}
.info-card.is-wide{grid-column:1 / -1;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start;background:#FFFFFF}
.info-card.is-wide .card-num{font-size:52px}
.wide-col h4{font-size:15px;color:var(--green);margin-bottom:10px;font-weight:600}
.wide-col p{font-size:14.5px;line-height:1.85;color:var(--muted)}
.wide-col + .wide-col{border-left:1px solid var(--line);padding-left:36px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:.9fr 1.6fr;gap:48px;align-items:start}
.faq-aside h2{font-size:clamp(21px,2.4vw,28px);display:inline-flex;align-items:center;gap:10px}
.faq-aside h2::before{
  content:"";width:18px;height:18px;border:2px solid var(--green);border-radius:3px;
  background:linear-gradient(var(--apricot),var(--apricot)) center/6px 6px no-repeat;flex:0 0 auto;
}
.faq-aside p{margin-top:14px;font-size:15.5px;line-height:1.8;color:var(--muted)}
.faq-aside .btn-link{margin-top:16px}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:#FFFFFF;border:1px solid var(--line);border-radius:10px;overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.is-open{border-color:var(--green);box-shadow:0 6px 18px rgba(18,86,74,.08)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:17px 20px;border:0;background:transparent;text-align:left;cursor:pointer;
  font-size:16px;font-weight:500;line-height:1.6;color:var(--text);font-family:inherit;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--green)}
.faq-item.is-open .faq-q{color:var(--green)}
.faq-q .chev{flex:0 0 auto;color:var(--faint);transition:transform .22s ease,color .22s ease}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);color:var(--green)}
.faq-a{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-a[hidden]{display:none}

/* ============ Soft CTA ============ */
.cta-soft{padding:8px 0 72px}
.cta-soft-inner{
  background:#EAF2EE;border:1px solid #D5E7DE;border-radius:18px;
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-soft h2{font-size:clamp(20px,2.3vw,26px);color:var(--green-dark)}
.cta-soft p{margin-top:10px;font-size:15px;line-height:1.75;color:#3F5C55;max-width:36em}
.cta-soft-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ Back links ============ */
.back-links-section{padding:0 0 80px}
.back-links{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  padding:20px 24px;background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);
}
.back-links .lead{font-size:13px;color:var(--faint);margin-right:4px}
.back-links a{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--green);
  background:#F3F7F5;border:1px solid #DCE7E2;border-radius:999px;padding:7px 15px;
}
.back-links a:hover{background:#EAF2EE;border-color:#C9DCD3}

/* ============ Footer ============ */
.site-footer{background:var(--deep);color:var(--on-deep-muted);border-top:1px solid var(--copper);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-name{color:#FFFFFF;font-size:19px;font-weight:600;display:block}
.footer-brand .brand-sub{color:#8FA9A2;font-size:12px;display:block;margin-top:3px}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:#A9BFB9;max-width:24em}
.footer-brand .kw{display:inline-block;margin-top:14px;font-size:12px;color:#8FA9A2;letter-spacing:.05em}
.footer-col h4{font-size:14px;font-weight:600;color:#FFFFFF;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{position:relative;font-size:14px;color:var(--on-deep-muted);display:inline-block;transition:color .18s ease,padding-left .18s ease}
.footer-col a::before{content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%);width:6px;height:0;background:var(--apricot);transition:height .18s ease}
.footer-col a:hover{color:#FFFFFF}
.footer-col a:hover::before{height:12px}
.footer-bottom{
  border-top:1px solid rgba(201,214,210,.18);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:#8FA9A2;
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .links a{color:#8FA9A2}
.footer-bottom .links a:hover{color:#FFFFFF}

/* ============ Responsive ============ */
@media (max-width:1180px){
  .hero-split{gap:40px}
  .faq-grid{gap:36px}
}
@media (max-width:1024px){
  .container{padding:0 20px}
  .nav-links{gap:20px}
  .hero-split{grid-template-columns:1fr;gap:32px;padding:26px 0 6px}
  .hero-media img{aspect-ratio:16/9}
  .section{padding:60px 0}
  .faq-grid{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-login{display:none}
}
@media (max-width:768px){
  .section{padding:52px 0}
  .cards-grid{grid-template-columns:1fr;gap:16px}
  .info-card{padding:22px}
  .info-card.is-wide{grid-template-columns:1fr;gap:20px}
  .wide-col + .wide-col{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:20px}
  .hint-scroll{display:block}
  .compare-foot .note{width:100%}
  .cta-soft-inner{padding:26px 22px;flex-direction:column;align-items:flex-start}
  .cta-soft-actions{width:100%}
  .cta-soft-actions .btn{flex:1 1 auto}
  .back-links{padding:16px 18px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:36px}
  .site-footer{padding-top:48px}
  .section-title::before{width:16px;height:16px}
}
@media (max-width:560px){
  .container{padding:0 16px}
  h1{font-size:clamp(25px,7vw,32px)}
  .hero-lead{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .nav-cta{padding:0 14px;font-size:13px}
  .brand-name{font-size:16.5px}
  .section{padding:46px 0}
  .section-head{margin-bottom:22px}
  .info-card{padding:20px}
  .card-num{font-size:38px}
  .info-card.is-wide .card-num{font-size:42px}
  .faq-q{font-size:15px;padding:15px 16px}
  .faq-a{padding:0 16px 16px;font-size:14.5px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-soft{padding:0 0 56px}
  .back-links-section{padding:0 0 60px}
  .back-links a{font-size:13px;padding:6px 12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .btn-primary:hover,.info-card:hover{transform:none}
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
:root{
  --green:#12564A;
  --green-dark:#0C3E35;
  --green-light:#1B6E5F;
  --amber:#E7A177;
  --copper:#B07A46;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --tint:#FAF9F6;
  --tint-green:#EAF2EE;
  --ink:#1C2422;
  --muted:#5A6663;
  --soft:#8A9491;
  --line:#E2DED6;
  --deep:#0E2B27;
  --deep-text:#C9D6D2;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(14,43,39,.06);
  --sh-2:0 8px 24px rgba(14,43,39,.06);
  --ease:180ms ease;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--green);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--green-dark);}
button{font-family:inherit;}
:focus-visible{outline:2px dashed var(--green);outline-offset:3px;border-radius:4px;}

/* ===== 容器 ===== */
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:500;
  line-height:1;
  cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--green);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--green-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(12,62,53,.22);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--tint-green);color:var(--green-dark);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}

/* 文字链按钮 */
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  color:var(--green);
}
.link-arrow svg{transition:transform var(--ease);flex:none;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  background:var(--tint-green);
  color:var(--green);
  letter-spacing:.01em;
}
.badge-amber{background:var(--amber);color:var(--deep);}

/* 板块标题方印 */
.sec-mark{
  display:inline-block;
  position:relative;
  width:18px;
  height:18px;
  border:2px solid var(--green);
  vertical-align:-3px;
  margin-right:10px;
  flex:none;
}
.sec-mark::after{
  content:"";
  position:absolute;
  inset:4px;
  background:var(--amber);
}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background-color var(--ease);
}
.site-header.is-scrolled{
  background:#fff;
  box-shadow:0 4px 18px rgba(14,43,39,.08);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:64px;
}
.brand{
  display:flex;
  flex-direction:column;
  justify-content:center;
  line-height:1.15;
  flex:none;
}
.brand-name{
  font-size:18px;
  font-weight:700;
  color:var(--green);
  letter-spacing:-.01em;
}
.brand-sub{
  font-size:11px;
  color:var(--soft);
  letter-spacing:.1em;
  margin-top:3px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
  margin-right:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  font-weight:500;
  color:var(--ink);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--green);}
.nav-links a:hover::after,
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--green);}

.nav-tools{
  display:flex;
  align-items:center;
  gap:16px;
  flex:none;
}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:999px;
  border:1px solid transparent;
  background:transparent;
  color:var(--ink);
  cursor:pointer;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:var(--tint-green);color:var(--green);border-color:var(--line);}
.login-link{
  font-size:14px;
  font-weight:500;
  color:var(--ink);
  padding:6px 0;
}
.login-link:hover{color:var(--green);}

/* 汉堡按钮 */
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:38px;
  height:38px;
  padding:0 8px;
  border:1px solid var(--line);
  border-radius:9px;
  background:#fff;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  height:2px;
  width:100%;
  background:var(--green);
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}

/* 搜索浮层 */
.search-pop{
  position:absolute;
  top:calc(100% + 8px);
  right:24px;
  width:min(360px,calc(100vw - 48px));
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--sh-2);
  padding:16px;
  display:none;
  z-index:120;
}
.search-pop.is-open{display:block;}
.search-pop .field-label{
  display:block;
  font-size:12px;
  color:var(--muted);
  margin-bottom:8px;
}
.search-pop input{
  width:100%;
  height:40px;
  padding:0 12px;
  font-size:14px;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--tint);
  color:var(--ink);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-pop input:focus{
  outline:none;
  border-color:var(--green);
  box-shadow:0 0 0 2px rgba(18,86,74,.14);
}
.search-sugg{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:12px;
}
.search-sugg a{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:999px;
  background:var(--tint-green);
  color:var(--green);
  font-size:12px;
}
.search-sugg a:hover{background:var(--green);color:#fff;}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(14,43,39,.38);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
  z-index:150;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;
  right:0;
  width:min(84vw,320px);
  height:100%;
  background:#fff;
  padding:24px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform 240ms ease;
  z-index:200;
  box-shadow:-12px 0 40px rgba(14,43,39,.14);
}
.drawer.is-open{transform:none;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:20px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:34px;
  height:34px;
  border:1px solid var(--line);
  border-radius:9px;
  background:#fff;
  color:var(--ink);
  font-size:18px;
  line-height:1;
  cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:20px;}
.drawer-nav a{
  display:block;
  padding:12px 10px;
  font-size:15px;
  color:var(--ink);
  border-radius:9px;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--tint-green);color:var(--green);}
.drawer-actions{display:flex;flex-direction:column;gap:12px;}
.drawer-actions .btn{width:100%;}

/* ===== 页头 hero ===== */
.page-hero{
  position:relative;
  padding:48px 0 64px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(247,246,242,.91);
}
.page-hero .container{position:relative;z-index:1;}
.hero-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:18px;
}
.breadcrumb{font-size:13px;color:var(--muted);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb .sep{margin:0 8px;color:var(--soft);}
.breadcrumb .cur{color:var(--ink);}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--green);
  font-weight:500;
}
.back-link svg{transition:transform var(--ease);}
.back-link:hover svg{transform:translateX(3px);}

.page-hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.22;
  font-weight:600;
  letter-spacing:-.005em;
  margin:14px 0 16px;
  max-width:900px;
}
.page-hero .lead{
  font-size:17px;
  line-height:1.8;
  color:var(--muted);
  max-width:720px;
  margin-bottom:26px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 数据条 */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-top:36px;
}
.stat{
  background:#fff;
  padding:22px 20px;
}
.stat-num{
  display:block;
  font-size:28px;
  font-weight:600;
  line-height:1.1;
  color:var(--green);
  font-variant-numeric:tabular-nums;
}
.stat-label{
  display:block;
  font-size:12px;
  color:var(--muted);
  margin-top:8px;
}

/* ===== 通用板块 ===== */
.section{padding:72px 0;}
.section--tint{background:var(--tint);}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{
  font-size:clamp(24px,2.7vw,32px);
  line-height:1.3;
  font-weight:600;
  letter-spacing:-.005em;
  margin-bottom:12px;
}
.section-head p{
  font-size:16px;
  line-height:1.75;
  color:var(--muted);
}

/* ===== 时间线 ===== */
.timeline{
  position:relative;
  max-width:880px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:15px;
  top:14px;
  bottom:14px;
  width:2px;
  background:var(--line);
}
.timeline-item{
  position:relative;
  padding-left:52px;
  padding-bottom:36px;
}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";
  position:absolute;
  left:11px;
  top:9px;
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 4px var(--bg);
}
.tl-index{
  display:block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--copper);
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.timeline-item h3{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  margin-bottom:8px;
}
.timeline-item p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  max-width:42em;
}

/* ===== 卡片通用 ===== */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
  border-color:#D7D1C6;
}
.card h3{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  margin:14px 0 10px;
}
.card p{
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* 知识点网格 */
.knowledge-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:24px;
  align-items:start;
}
.knowledge-side{
  display:grid;
  gap:24px;
}
.card-main .cover{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  margin-top:20px;
}
.tick-list{margin:14px 0 18px;}
.tick-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  margin-bottom:10px;
}
.tick-list li:last-child{margin-bottom:0;}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  width:12px;
  height:7px;
  border-left:2px solid var(--green);
  border-bottom:2px solid var(--green);
  transform:rotate(-45deg);
  border-radius:1px;
}
.card-side h3{font-size:17px;margin-top:12px;}
.card-side .meta-line{
  font-size:12px;
  color:var(--soft);
  letter-spacing:.04em;
  margin-top:14px;
  display:block;
}
.side-thumb{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-img);
  margin-top:16px;
}

/* ===== FAQ ===== */
.faq-grid{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:44px;
  align-items:start;
}
.faq-intro h2{
  font-size:clamp(24px,2.7vw,32px);
  line-height:1.3;
  font-weight:600;
  margin-bottom:12px;
}
.faq-intro p{
  font-size:16px;
  line-height:1.75;
  color:var(--muted);
  margin-bottom:18px;
}
.accordion{
  background:transparent;
  margin:0;
  padding:0;
  list-style:none;
}
.accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.accordion-item:hover{border-color:#D7D1C6;}
.accordion-item.is-active{
  border-color:var(--green);
  box-shadow:var(--sh-1);
}
.accordion-title{
  display:block;
  position:relative;
  padding:18px 56px 18px 20px;
  font-size:16px;
  font-weight:500;
  line-height:1.6;
  color:var(--ink);
  background:transparent;
  border:0;
  border-radius:0;
  transition:color var(--ease),background-color var(--ease);
}
.accordion-title:hover{background:var(--tint);color:var(--green);}
.accordion-item.is-active .accordion-title{color:var(--green);}
.accordion-title::before{
  content:"";
  position:absolute;
  right:22px;
  top:50%;
  width:9px;
  height:9px;
  margin:0;
  border-right:2px solid var(--soft);
  border-bottom:2px solid var(--soft);
  transform:translateY(-70%) rotate(45deg);
  transition:transform var(--ease),border-color var(--ease);
}
.accordion-item.is-active .accordion-title::before{
  transform:translateY(-30%) rotate(-135deg);
  border-color:var(--green);
}
.accordion-content{
  display:none;
  padding:0 20px 18px;
  border:0;
  background:transparent;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}
.accordion-content p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ===== CTA 窄带 ===== */
.cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--amber);
  border-radius:var(--r-card);
  padding:30px 32px;
  box-shadow:var(--sh-1);
}
.cta-copy h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.35;
  font-weight:600;
  margin-bottom:10px;
}
.cta-copy p{
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  max-width:46em;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  flex:none;
}

/* ===== 相关分类 ===== */
.related{
  padding:0 0 72px;
}
.related-row{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  padding-top:28px;
  border-top:1px solid var(--copper);
}
.related-label{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--copper);
}
.chips{display:flex;flex-wrap:wrap;gap:12px;}
.chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  color:var(--ink);
  transition:background-color var(--ease),color var(--ease),border-color var(--ease);
}
.chip:hover{
  background:var(--tint-green);
  border-color:var(--green);
  color:var(--green);
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--deep);
  color:var(--deep-text);
  border-top:1px solid var(--copper);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
  padding:56px 0 36px;
}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:#fff;
  margin-bottom:14px;
}
.footer-col ul{margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col ul a{
  position:relative;
  display:inline-block;
  font-size:14px;
  color:var(--deep-text);
}
.footer-col ul a::before{
  content:"";
  position:absolute;
  left:-12px;
  top:50%;
  width:6px;
  height:1.5px;
  background:var(--amber);
  transform:translateY(-50%) scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.footer-col ul a:hover{color:#fff;}
.footer-col ul a:hover::before{transform:translateY(-50%) scaleX(1);}
.site-footer .brand-name{
  display:block;
  font-size:18px;
  font-weight:700;
  color:#fff;
  letter-spacing:-.01em;
}
.site-footer .brand-sub{
  display:block;
  font-size:11px;
  letter-spacing:.1em;
  color:var(--amber);
  margin-top:5px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:var(--deep-text);
  margin:14px 0 10px;
  max-width:34ch;
}
.footer-brand .kw{
  display:inline-block;
  font-size:12px;
  letter-spacing:.06em;
  color:#8FA7A0;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 26px;
  font-size:13px;
  color:#8FA7A0;
}
.footer-bottom .links{display:flex;gap:18px;}
.footer-bottom a{color:#8FA7A0;}
.footer-bottom a:hover{color:#fff;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .nav-links{gap:20px;}
  .knowledge-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-card{flex-direction:column;align-items:flex-start;}
}

@media (max-width:900px){
  .nav-links,.login-link,.nav-tools .btn-primary{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:58px;}
  .search-pop{right:16px;}
}

@media (max-width:768px){
  .section{padding:48px 0;}
  .page-hero{padding:36px 0 48px;}
  .page-hero .lead{font-size:16px;}
  .timeline-item{padding-left:44px;padding-bottom:30px;}
  .timeline::before{left:13px;}
  .timeline-item::before{left:9px;}
  .card{padding:20px;}
  .cta-card{padding:24px;}
  .related{padding-bottom:48px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding:40px 0 28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .stat{padding:18px 16px;}
  .stat-num{font-size:24px;}
}

@media (max-width:520px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:25px;line-height:1.3;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .stat-strip{grid-template-columns:1fr;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .accordion-title{padding:16px 48px 16px 16px;font-size:15px;}
  .accordion-title::before{right:18px;}
  .accordion-content{padding:0 16px 16px;}
  .timeline-item h3{font-size:17px;}
}

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