/* roulang page: index */
:root{
  --ink:#101315;
  --spruce:#0F6B58;
  --spruce-d:#0A4A3D;
  --amber:#D9601F;
  --paper:#F6F5F1;
  --white:#FFFFFF;
  --line:#E4E1DA;
  --muted:#6B6F6C;
  --soft:#EFEDE7;
  --ok:#1F7A55;
  --info:#2C6FB5;
  --warn:#B7791F;
  --err:#B23A32;
  --r-btn:8px;
  --r-card:12px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(16,19,21,.08);
  --maxw:1200px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;
  --font-num:'Inter','Helvetica Neue','PingFang SC',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block;border-radius:var(--r-card)}
a{color:var(--spruce);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--spruce-d)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--spruce);outline-offset:2px}
::selection{background:rgba(15,107,88,.16)}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 40px}
.section{padding:104px 0}
.section--tight{padding:72px 0}
.section--paper{background:var(--paper)}
.section--white{background:var(--white)}
.section--ink{background:var(--ink);color:var(--paper)}
.section--ink h2,.section--ink h3{color:var(--paper)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--spruce);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--spruce)}
.section--ink .eyebrow{color:#8FD3BE}
.section--ink .eyebrow::before{background:#8FD3BE}

.section-head{max-width:720px;margin-bottom:56px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.28;letter-spacing:-.005em}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px;max-width:620px}
.section--ink .section-head p{color:rgba(246,245,241,.72)}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,245,241,.9);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 var(--line),0 8px 22px rgba(16,19,21,.06);
}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:24px;height:72px;
}
.nav-group{display:flex;align-items:center;gap:28px}
.nav-group--left{justify-self:start}
.nav-group--right{justify-self:end}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:4px 2px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-6px;height:2px;
  background:var(--spruce);transition:left .24s var(--ease),right .24s var(--ease);
}
.nav-link:hover::after,.nav-link.is-active::after{left:0;right:0}
.nav-link:hover{color:var(--spruce)}
.nav-link.is-active{color:var(--spruce);font-weight:600}

.brand{display:flex;align-items:center;gap:10px;justify-self:center}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--spruce);color:var(--paper);
  display:grid;place-items:center;font-family:var(--font-num);font-weight:700;font-size:18px;
  letter-spacing:-.02em;flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text b{font-family:var(--font-num);font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-text i{font-style:normal;font-size:11px;letter-spacing:.16em;color:var(--muted);margin-top:3px}
.brand:hover .brand-text b{color:var(--spruce)}

.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  align-items:center;justify-content:center;color:var(--ink);font-size:17px;
}
.nav-toggle:hover{background:var(--soft)}
.nav-cta-icon{display:none}

/* mobile drawer */
.drawer{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:var(--paper);border-bottom:1px solid var(--line);
  transform:translateY(-102%);transition:transform .32s var(--ease);
  padding:16px 20px 26px;box-shadow:0 18px 40px rgba(16,19,21,.12);
}
.drawer.is-open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:44px;margin-bottom:14px}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);display:grid;place-items:center;font-size:18px}
.drawer-close:hover{background:var(--soft)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:15px 4px;font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--spruce)}
.drawer-actions{margin-top:22px;display:flex;flex-direction:column;gap:12px}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background .12s var(--ease),color .12s var(--ease),border-color .12s var(--ease),transform .12s var(--ease);
  white-space:nowrap;
}
.btn i{transition:transform .18s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn--primary{background:var(--spruce);color:var(--paper)}
.btn--primary:hover{background:var(--spruce-d);color:var(--paper)}
.btn--amber{background:var(--amber);color:#fff}
.btn--amber:hover{background:#BC5019;color:#fff}
.btn--ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn--ghost:hover{color:var(--spruce);border-color:var(--spruce);background:rgba(15,107,88,.06)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--spruce);
}
.link-arrow i{transition:transform .18s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ hero ============ */
.hero{
  position:relative;background:var(--paper);
  padding:76px 0 88px;min-height:720px;display:flex;align-items:center;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(16,19,21,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(16,19,21,.035) 1px,transparent 1px);
  background-size:80px 80px;
  mask-image:radial-gradient(ellipse at 70% 30%,#000 10%,transparent 72%);
}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;position:relative;z-index:2}
.hero-copy{grid-column:1 / span 6}
.hero-visual{grid-column:7 / span 6}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(15,107,88,.1);color:var(--spruce);
  font-size:12px;font-weight:600;letter-spacing:.04em;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(32px,5.2vw,64px);font-weight:800;line-height:1.08;
  letter-spacing:-.01em;margin-bottom:22px;
}
.hero h1 em{font-style:normal;color:var(--spruce)}
.hero-sub{font-size:17px;color:var(--muted);max-width:520px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:34px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);font-weight:500}
.hero-points i{color:var(--spruce);font-size:12px}

.hero-visual{position:relative}
.hero-figure{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:var(--white);
  aspect-ratio:4/3;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,19,21,0) 40%,rgba(16,19,21,.28) 100%);
}
.hero-pass{
  position:absolute;left:-18px;bottom:26px;z-index:3;
  background:rgba(255,255,255,.97);border:1px dashed var(--spruce);
  border-radius:var(--r-card);padding:14px 18px;min-width:216px;
  box-shadow:var(--shadow);
}
.hero-pass span{display:block;font-family:var(--font-num);font-size:11px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.hero-pass strong{display:block;font-size:15px;font-weight:700;margin-top:6px}
.hero-pass small{display:block;font-size:13px;color:var(--muted);margin-top:2px}

/* ============ services ============ */
.svc-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:stretch}
.svc-main{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.svc-main:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(15,107,88,.3)}
.svc-main figure{margin:0;aspect-ratio:16/10;overflow:hidden}
.svc-main img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s var(--ease)}
.svc-main:hover img{transform:scale(1.03)}
.svc-main-body{padding:28px 28px 30px}
.svc-main-body h3{font-size:20px;font-weight:700;margin-bottom:12px}
.svc-main-body p{color:var(--muted);font-size:15px;line-height:1.85;margin-bottom:20px}
.svc-list{display:grid;grid-template-rows:repeat(3,1fr);gap:16px}
.svc-item{
  display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.svc-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(15,107,88,.3)}
.svc-num{
  font-family:var(--font-num);font-size:34px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px var(--spruce);letter-spacing:-.02em;
}
.svc-item h3{font-size:17px;font-weight:700;margin-bottom:6px}
.svc-item p{font-size:14px;color:var(--muted);line-height:1.75}
.svc-item i.arrow{color:var(--spruce);font-size:14px;transition:transform .18s var(--ease)}
.svc-item:hover i.arrow{transform:translateX(4px)}

/* ============ stats ============ */
.stats{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--paper);
}
.stats::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(246,245,241,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(246,245,241,.06) 1px,transparent 1px);
  background-size:60px 60px;
}
.stats-inner{position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(246,245,241,.14)}
.stat{padding:38px 28px 8px;border-right:1px solid rgba(246,245,241,.14)}
.stat:last-child{border-right:none}
.stat-num{
  font-family:var(--font-num);font-weight:800;font-size:clamp(38px,4.4vw,62px);
  line-height:1;color:var(--paper);letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:.5em;font-weight:700;color:#8FD3BE;margin-left:2px}
.stat-label{display:block;margin-top:16px;font-size:15px;font-weight:600;color:#8FD3BE}
.stat p{margin-top:8px;font-size:14px;color:rgba(246,245,241,.68);line-height:1.75}

/* ============ cases ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(15,107,88,.3)}
.case-card figure{margin:0;overflow:hidden;aspect-ratio:16/11}
.case-card img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s var(--ease)}
.case-card:hover img{transform:scale(1.03)}
.case-body{padding:24px}
.case-body h3{font-size:17px;font-weight:700;margin:12px 0 10px}
.case-body p{font-size:14px;color:var(--muted);line-height:1.8}
.tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(15,107,88,.1);color:var(--spruce);
  font-size:12px;font-weight:600;line-height:1.6;
}
.section--ink .tag{background:rgba(246,245,241,.12);color:var(--paper)}

/* ============ plan ============ */
.plan-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.plan-sticky{position:sticky;top:112px}
.plan-sticky h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:16px}
.plan-sticky p{color:var(--muted);font-size:15px;margin-bottom:24px}
.plan-list{border-top:1px solid var(--line)}
.plan-item{
  display:grid;grid-template-columns:64px 1fr;gap:22px;
  padding:28px 0;border-bottom:1px solid var(--line);
  transition:padding-left .24s var(--ease);
}
.plan-item:hover{padding-left:8px}
.plan-item .num{
  font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--spruce);
  letter-spacing:.06em;padding-top:4px;
}
.plan-item h3{font-size:18px;font-weight:700;margin-bottom:8px}
.plan-item p{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:12px}

/* ============ posts (CMS) ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(15,107,88,.3)}
.post-card h3{font-size:17px;font-weight:700;line-height:1.55;margin:12px 0 10px}
.post-card h3 a{color:var(--ink)}
.post-card h3 a:hover{color:var(--spruce);text-decoration:underline;text-underline-offset:4px}
.post-card p{font-size:14px;color:var(--muted);line-height:1.8;flex:1}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.post-foot a{font-weight:600}
.empty-state{
  grid-column:1 / -1;text-align:center;padding:56px 24px;
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--white);
}
.empty-state i{font-size:26px;color:var(--spruce);display:block;margin-bottom:14px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:12px}

/* ============ faq ============ */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:24px 46px 24px 0;font-size:17px;font-weight:600;line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--spruce)}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--muted);
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg);color:var(--spruce)}
.faq-item[open] summary{color:var(--spruce);padding-left:16px}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;background:var(--spruce);
}
.faq-body{padding:0 46px 26px 16px;color:var(--muted);font-size:15px;line-height:1.9}
.faq-item[open] .faq-body{padding-left:16px}

/* ============ contact ============ */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.contact-info h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:16px}
.contact-info > p{color:var(--muted);font-size:15px;margin-bottom:32px}
.contact-list{display:flex;flex-direction:column;gap:18px}
.contact-list li{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 20px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
}
.contact-list i{
  width:38px;height:38px;flex:none;border-radius:9px;display:grid;place-items:center;
  background:rgba(15,107,88,.1);color:var(--spruce);font-size:15px;
}
.contact-list b{display:block;font-size:14px;font-weight:600}
.contact-list span{font-size:14px;color:var(--muted)}

.form-card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:32px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600}
.field input,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--paper);font-size:15px;transition:border-color .16s var(--ease),background .16s var(--ease);
}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--spruce);box-shadow:0 0 0 1px var(--spruce);background:var(--white);
}
.field.is-error input,.field.is-error textarea{border-color:var(--err);box-shadow:0 0 0 1px var(--err)}
.field-error{
  display:none;padding-left:10px;border-left:3px solid var(--err);
  font-size:13px;color:var(--err);
}
.field.is-error .field-error{display:block}
.form-note{font-size:13px;color:var(--muted);margin-top:16px}
.form-success{
  display:none;margin-top:18px;padding:12px 16px;border-radius:var(--r-btn);
  background:rgba(31,122,85,.1);color:var(--ok);font-size:14px;font-weight:500;
}
.form-success.is-shown{display:block}

/* ============ cta strip ============ */
.cta-strip{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4}
.cta-strip p{color:var(--muted);font-size:15px;margin-top:8px}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:var(--paper);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:var(--spruce)}
.footer-brand b{font-family:var(--font-num);font-size:17px;font-weight:800;color:var(--paper)}
.footer-brand i{font-style:normal;display:block;font-size:11px;letter-spacing:.14em;color:rgba(246,245,241,.6);margin-top:3px}
.site-footer p{color:rgba(246,245,241,.66);font-size:14px;line-height:1.9}
.footer-col h3{font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:18px;color:var(--paper)}
.footer-col li{margin-bottom:12px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(246,245,241,.66)}
.footer-col a:hover{color:#8FD3BE}
.footer-bottom{
  border-top:1px solid rgba(246,245,241,.14);
  padding:24px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(246,245,241,.52);
}

/* ============ reveal ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ============ breakpoints ============ */
@media (max-width:1279px){
  .section{padding:88px 0}
  .hero{min-height:640px}
}
@media (max-width:1023px){
  .container{padding:0 28px}
  .nav-group--left,.nav-group--right{display:none}
  .nav-wrap{grid-template-columns:40px 1fr 40px;height:60px}
  .nav-toggle{display:flex}
  .nav-cta-icon{
    display:flex;width:40px;height:40px;border-radius:var(--r-btn);
    align-items:center;justify-content:center;background:var(--spruce);color:var(--paper);
    justify-self:end;font-size:14px;
  }
  .brand{justify-self:center}
  .hero{padding:56px 0 64px;min-height:auto}
  .hero-grid{gap:20px}
  .hero-copy{grid-column:1 / -1}
  .hero-visual{grid-column:1 / -1;margin-top:12px}
  .hero-pass{left:16px;bottom:16px;min-width:190px}
  .svc-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:none;border-bottom:1px solid rgba(246,245,241,.14);padding-bottom:26px}
  .stat:nth-child(odd){border-right:1px solid rgba(246,245,241,.14)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .plan-grid{grid-template-columns:1fr;gap:28px}
  .plan-sticky{position:static}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .hero{padding:44px 0 56px;min-height:520px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-points{gap:8px 18px}
  .hero-pass{position:static;margin-top:16px;left:auto;bottom:auto}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-right:none !important}
  .case-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .svc-item{grid-template-columns:auto 1fr;gap:16px;padding:20px}
  .svc-item i.arrow{display:none}
  .form-card{padding:24px}
  .form-grid{grid-template-columns:1fr}
  .cta-strip{padding:28px 24px;flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;padding-bottom:40px}
  .faq-body{padding-right:16px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
  .case-card:hover img,.svc-main:hover img{transform:none}
}

/* roulang page: article */
:root{
  --ink:#101315;
  --ink-soft:#1b2023;
  --brand:#0F6B58;
  --brand-dark:#0A4A3D;
  --brand-tint:rgba(15,107,88,.10);
  --accent:#D9601F;
  --paper:#F6F5F1;
  --white:#FFFFFF;
  --line:#E4E1DA;
  --line-dark:rgba(246,245,241,.14);
  --muted:#6B6F6C;
  --ok:#1F7A55;
  --info:#2C6FB5;
  --warn:#B7791F;
  --err:#B23A32;
  --radius-btn:8px;
  --radius-card:12px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-hover:0 8px 24px rgba(16,19,21,.08);
  --container:1200px;
  --pad-x:40px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;
  --font-num:'Inter','Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  font-feature-settings:"tnum" 1;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:0;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{max-width:var(--container);margin:0 auto;padding:0 var(--pad-x);}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--white{background:var(--white);}
.section--dark{background:var(--ink);color:var(--paper);}
.section--dark .section-sub{color:rgba(246,245,241,.72);}
.section-head{margin-bottom:48px;max-width:720px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.section-eyebrow::before{content:"";width:18px;height:1px;background:var(--brand);}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.25;}
.section-sub{margin-top:14px;color:var(--muted);font-size:16px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),background .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  box-shadow:0 6px 20px rgba(16,19,21,.07);
}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:20px;
  height:72px;
}
.nav-group{display:flex;align-items:center;gap:26px;}
.nav-group--left{justify-content:flex-start;}
.nav-group--right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--brand);transition:left .24s var(--ease),right .24s var(--ease);
}
.nav-link:hover::after,.nav-link:focus-visible::after{left:0;right:0;}
.nav-link.is-active::after{left:0;right:0;}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand);color:var(--paper);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:19px;font-weight:800;line-height:1;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-family:var(--font-num);font-size:17px;font-weight:800;letter-spacing:.01em;}
.brand-text i{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.06em;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .12s linear,color .12s linear,border-color .18s var(--ease),transform .18s var(--ease);
}
.btn i{transition:transform .18s var(--ease);}
.btn:hover i{transform:translateX(4px);}
.btn--primary{background:var(--brand);color:var(--paper);}
.btn--primary:hover{background:var(--brand-dark);color:var(--paper);}
.btn--accent{background:var(--accent);color:#fff;}
.btn--accent:hover{background:#b94f17;color:#fff;}
.btn--ghost{background:transparent;border:1px solid var(--ink);color:var(--ink);}
.btn--ghost:hover{border-color:var(--brand);background:var(--brand-tint);color:var(--brand);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.text-link i{transition:transform .18s var(--ease);}
.text-link:hover i{transform:translateX(4px);}

.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--radius-btn);color:var(--ink);font-size:18px;}
.nav-cta-icon{display:none;width:40px;height:40px;border-radius:var(--radius-btn);background:var(--brand);color:var(--paper);align-items:center;justify-content:center;}
.nav-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--white);
}
.nav-drawer.is-open{display:block;}
.nav-drawer ul{padding:12px 0 20px;}
.nav-drawer li{border-bottom:1px solid var(--line);}
.nav-drawer li:last-child{border-bottom:0;}
.nav-drawer a{display:block;padding:14px 0;font-size:15.5px;font-weight:500;}
.nav-drawer .drawer-cta{padding:18px 0 4px;border-bottom:0;}

/* ---------- hero (inner) ---------- */
.page-hero{
  position:relative;
  background:var(--ink);
  color:var(--paper);
  padding:56px 0 64px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(246,245,241,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(246,245,241,.06) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.7;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:nowrap;gap:8px;
  font-size:13.5px;color:rgba(246,245,241,.66);margin-bottom:24px;
  overflow:hidden;
}
.breadcrumb a:hover{color:var(--paper);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{
  color:rgba(246,245,241,.9);
  max-width:44vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.hero-title{
  font-size:clamp(28px,3.4vw,40px);
  font-weight:800;line-height:1.22;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  max-width:900px;
}
.entry-meta{
  margin-top:26px;padding-top:20px;
  border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;
  font-size:13.5px;color:rgba(246,245,241,.7);
}
.entry-meta .meta-item{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);}
.entry-meta .meta-item i{color:var(--brand);}
.tag-inline{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;
  background:rgba(246,245,241,.12);color:var(--paper);
  font-family:var(--font-cn);
}

/* ---------- article layout ---------- */
.article-shell{padding:72px 0 96px;background:var(--paper);}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,760px);
  justify-content:center;
  gap:56px;
}
.article-main{min-width:0;}
.article-side{display:none;}

.entry-content{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:48px 52px;
}
.entry-content > * + *{margin-top:1.2em;}
.entry-content p{font-size:17px;line-height:1.9;color:#22272a;}
.entry-content h2{
  position:relative;
  font-size:24px;font-weight:700;line-height:1.4;
  margin-top:48px;margin-bottom:16px;padding-left:14px;
}
.entry-content h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1em;border-radius:2px;background:var(--brand);
}
.entry-content h3{
  font-size:20px;font-weight:600;margin-top:34px;margin-bottom:12px;color:var(--ink);
}
.entry-content h4{font-size:17px;font-weight:600;margin-top:26px;margin-bottom:10px;}
.entry-content a{color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
.entry-content a:hover{color:var(--brand-dark);}
.entry-content strong{font-weight:700;}
.entry-content ul{margin:1.2em 0;padding-left:2px;}
.entry-content ul li{
  position:relative;padding-left:22px;margin-bottom:.6em;line-height:1.85;color:#22272a;
}
.entry-content ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:1px;background:var(--brand);
}
.entry-content ol{margin:1.2em 0;counter-reset:li;}
.entry-content ol li{
  position:relative;padding-left:30px;margin-bottom:.6em;line-height:1.85;counter-increment:li;
}
.entry-content ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--brand);
}
.entry-content blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--paper);border-left:4px solid var(--brand);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:#31383b;
}
.entry-content blockquote p{font-size:16.5px;color:#31383b;}
.entry-content img{border-radius:var(--radius-img);margin:1.8em auto;}
.entry-content figure{margin:1.8em 0;}
.entry-content figcaption{
  margin-top:10px;font-size:13.5px;color:var(--muted);text-align:center;
}
.entry-content table{
  width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15.5px;
}
.entry-content thead th{
  background:var(--paper);font-weight:600;text-align:left;
}
.entry-content th,.entry-content td{
  border:1px solid var(--line);padding:12px 16px;vertical-align:top;
}
.entry-content hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}

.entry-empty{
  background:var(--white);border:1px dashed var(--line);
  border-radius:var(--radius-card);padding:64px 32px;text-align:center;
}
.entry-empty i{font-size:26px;color:var(--brand);}
.entry-empty h2{margin-top:18px;font-size:20px;font-weight:700;}
.entry-empty p{margin-top:10px;color:var(--muted);font-size:15px;}
.entry-empty .text-link{margin-top:20px;}

/* ---------- tags / related ---------- */
.entry-foot{margin-top:40px;}
.tag-box{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.tag-box .tag-label{font-size:13.5px;color:var(--muted);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;
  background:var(--brand-tint);color:var(--brand);
}
.back-row{display:flex;flex-wrap:wrap;gap:24px;align-items:center;margin-top:26px;}

.related-block{margin-top:72px;}
.related-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:28px;
}
.related-head h2{font-size:22px;font-weight:700;}
.card-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(15,107,88,.3);}
.card-media{overflow:hidden;aspect-ratio:16/10;background:var(--paper);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-title{font-size:17.5px;font-weight:700;line-height:1.45;}
.card-excerpt{font-size:14.5px;color:var(--muted);line-height:1.75;}
.card-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);font-family:var(--font-num);
}
.card-foot .more{font-family:var(--font-cn);font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.card:hover .card-foot .more i{transform:translateX(4px);}
.card-foot .more i{transition:transform .18s var(--ease);}

/* ---------- sidebar ---------- */
.side-box{
  position:sticky;top:96px;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;
}
.side-box + .side-box{margin-top:24px;position:static;}
.side-box h3{
  font-size:15px;font-weight:700;padding-bottom:14px;margin-bottom:6px;
  border-bottom:1px solid var(--line);display:flex;align-items:center;gap:9px;
}
.side-box h3 i{color:var(--brand);font-size:13px;}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{
  display:flex;align-items:center;gap:10px;
  padding:13px 0;font-size:14.5px;font-weight:500;color:#31383b;
}
.side-list a::before{
  content:"";width:6px;height:6px;border-radius:1px;background:var(--line);flex:none;transition:background .18s var(--ease);
}
.side-list a:hover{color:var(--brand);}
.side-list a:hover::before{background:var(--brand);}
.side-tip{
  margin-top:16px;padding:16px;border:1px dashed rgba(15,107,88,.35);
  border-radius:var(--radius-card);background:rgba(15,107,88,.04);
  font-size:13.5px;color:var(--brand-dark);line-height:1.7;
}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:var(--paper);padding:64px 0;}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-inner h2{font-size:clamp(21px,2.2vw,28px);font-weight:700;max-width:640px;}
.cta-inner p{margin-top:10px;color:rgba(246,245,241,.7);font-size:15.5px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band .btn--ghost{border-color:rgba(246,245,241,.4);color:var(--paper);}
.cta-band .btn--ghost:hover{border-color:var(--paper);background:rgba(246,245,241,.08);color:var(--paper);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:72px 0 28px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid var(--line-dark);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--brand);}
.footer-brand b{font-family:var(--font-num);font-size:17px;font-weight:800;display:block;}
.footer-brand i{font-style:normal;font-size:11.5px;color:rgba(246,245,241,.6);letter-spacing:.06em;}
.site-footer p{color:rgba(246,245,241,.66);font-size:14.5px;line-height:1.85;max-width:340px;}
.footer-col h3{font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col a,.footer-col span{font-size:14.5px;color:rgba(246,245,241,.68);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:24px;font-size:13.5px;color:rgba(246,245,241,.55);font-family:var(--font-num);
}
.footer-bottom span:last-child{font-family:var(--font-cn);}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (min-width:1280px){
  .article-grid{grid-template-columns:minmax(0,760px) 300px;}
  .article-side{display:block;}
}
@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1023px){
  :root{--pad-x:32px;}
  .nav-group{gap:18px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:80px 0;}
}
@media (max-width:767px){
  :root{--pad-x:20px;}
  body{font-size:16px;}
  .nav-wrap{height:60px;grid-template-columns:auto 1fr auto;gap:12px;}
  .nav-group{display:none;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-cta-icon{display:flex;}
  .brand{grid-column:2;justify-self:center;}
  .brand-text i{font-size:10.5px;}
  .page-hero{padding:40px 0 48px;}
  .breadcrumb .current{max-width:52vw;}
  .entry-meta{gap:10px 16px;}
  .article-shell{padding:48px 0 64px;}
  .entry-content{padding:28px 22px;border-radius:var(--radius-card);}
  .entry-content p{font-size:16px;}
  .entry-content h2{font-size:21px;margin-top:38px;}
  .entry-content h3{font-size:18px;}
  .card-grid{grid-template-columns:1fr;}
  .section{padding:64px 0;}
  .section--tight{padding:48px 0;}
  .cta-band{padding:48px 0;}
  .cta-inner h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;padding-bottom:32px;}
}
@media (max-width:520px){
  .hero-title{font-size:25px;}
  .card-body{padding:20px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .back-row{gap:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --ink:#101315;
  --brand:#0F6B58;
  --brand-dark:#0A4A3D;
  --brand-on-dark:#3FA88F;
  --accent:#D9601F;
  --paper:#F6F5F1;
  --white:#FFFFFF;
  --line:#E4E1DA;
  --muted:#6B6F6C;
  --ok:#1F7A55;
  --info:#2C6FB5;
  --warn:#B7791F;
  --err:#B23A32;
  --r-btn:8px;
  --r-card:12px;
  --r-pill:999px;
  --shadow-hover:0 8px 24px rgba(16,19,21,.08);
  --font-cn:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;
  --font-num:'Inter','Helvetica Neue',Helvetica,Arial,sans-serif;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.004em}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(246,245,241,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background .22s ease,backdrop-filter .22s ease;
}
.site-header.is-scrolled{
  background:rgba(246,245,241,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:0 6px 20px rgba(16,19,21,.07);
}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  height:72px;
}
.nav-group{display:flex;align-items:center;gap:28px}
.nav-group--left{justify-self:start}
.nav-group--right{justify-self:end}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  padding:6px 2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:2px;
  background:var(--brand);
  transition:left .24s cubic-bezier(.2,.8,.2,1),right .24s cubic-bezier(.2,.8,.2,1);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{left:0;right:0}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{left:0;right:0}

.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center}
.brand-mark{
  width:34px;height:34px;border-radius:8px;
  background:var(--brand);color:var(--paper);
  display:grid;place-items:center;
  font-family:var(--font-num);font-weight:800;font-size:16px;
  flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--ink)}
.brand-text i{font-style:normal;font-size:11px;letter-spacing:.16em;color:var(--muted)}

.nav-toggle{display:none;width:40px;height:40px;border-radius:8px;font-size:18px;color:var(--ink)}
.nav-cta-icon{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:background .12s ease,color .12s ease,border-color .12s ease,transform .12s ease;
  white-space:nowrap;
}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--primary{background:var(--brand);color:var(--paper);border:1px solid var(--brand)}
.btn--primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:var(--paper)}
.btn--ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn--ghost:hover{background:rgba(15,107,88,.06);border-color:var(--brand);color:var(--brand)}
.btn--accent{background:var(--accent);color:#fff;border:1px solid var(--accent)}
.btn--accent:hover{background:#B94E14;border-color:#B94E14;color:#fff}
.btn i{transition:transform .18s ease}
.btn:hover i{transform:translateX(4px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .18s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1.6;
  padding:3px 10px;border-radius:var(--r-pill);
  background:rgba(15,107,88,.1);color:var(--brand);
}
.badge--ink{background:rgba(246,245,241,.12);color:var(--paper)}
.badge--soft{background:rgba(16,19,21,.05);color:var(--muted)}

/* ---------- hero ---------- */
.page-hero{background:var(--white);border-bottom:1px solid var(--line);overflow:hidden}
.hero-grid{
  display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;
  min-height:264px;padding:44px 0;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:#C6C2B9}
.crumb .current{color:var(--ink);font-weight:500}
.page-hero h1{font-size:clamp(28px,3.4vw,42px);font-weight:800;line-height:1.18;letter-spacing:-.01em}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{margin-top:16px;font-size:16px;color:var(--muted);max-width:44ch}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}

.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:230px;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);
}
.hero-visual::before{
  content:"";position:absolute;inset:-12px -12px auto auto;width:96px;height:96px;
  border-top:1px solid rgba(15,107,88,.4);border-right:1px solid rgba(15,107,88,.4);
  border-radius:0 12px 0 0;
}
.hero-note{
  position:absolute;left:-18px;bottom:18px;
  background:var(--white);
  border:1px dashed rgba(15,107,88,.55);
  border-radius:10px;
  padding:12px 16px;
  font-size:12px;line-height:1.7;color:var(--muted);
  box-shadow:0 8px 24px rgba(16,19,21,.06);
}
.hero-note b{display:block;font-size:13px;color:var(--ink);font-weight:700}

/* ---------- sections ---------- */
.section{padding:104px 0}
.section--tight{padding:80px 0}
.section--white{background:var(--white)}
.section--paper{background:var(--paper)}
.section--ink{background:var(--ink);color:var(--paper)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.18em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:24px;height:1px;background:var(--brand)}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;max-width:56ch}
.section--ink .section-head .eyebrow{color:var(--brand-on-dark)}
.section--ink .section-head .eyebrow::before{background:var(--brand-on-dark)}
.section--ink .section-head p{color:rgba(246,245,241,.7)}

/* ---------- path layout ---------- */
.path-layout{display:grid;grid-template-columns:268px minmax(0,1fr);gap:56px;align-items:start}
.toc{
  position:sticky;top:100px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
}
.toc h3{font-size:15px;font-weight:700;margin-bottom:6px}
.toc .toc-sub{font-size:12px;color:var(--muted);margin-bottom:16px}
.toc ol{display:flex;flex-direction:column;gap:2px}
.toc a{
  display:flex;gap:10px;align-items:baseline;
  padding:8px 8px;border-radius:6px;
  font-size:14px;color:var(--muted);
  transition:background .18s ease,color .18s ease;
}
.toc a:hover{background:rgba(15,107,88,.07);color:var(--brand)}
.toc a .idx{font-family:var(--font-num);font-size:12px;font-weight:700;color:#A9A59C;font-variant-numeric:tabular-nums}
.toc a:hover .idx{color:var(--brand)}
.toc-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}

.path-item{position:relative;padding-left:66px;padding-bottom:36px}
.path-item:last-child{padding-bottom:0}
.path-item::before{
  content:"";position:absolute;left:19px;top:48px;bottom:6px;width:1px;
  background:repeating-linear-gradient(to bottom,rgba(15,107,88,.4) 0 6px,transparent 6px 13px);
}
.path-item:last-child::before{display:none}
.path-num{
  position:absolute;left:0;top:0;
  width:40px;height:40px;border-radius:8px;
  border:1px solid var(--brand);color:var(--brand);
  background:var(--white);
  display:grid;place-items:center;
  font-family:var(--font-num);font-weight:700;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.path-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 26px 24px;
  transition:transform .2s cubic-bezier(.2,.8,.2,1),box-shadow .2s ease,border-color .2s ease;
}
.path-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(15,107,88,.3);
}
.path-card h3{font-size:20px;font-weight:600;margin-bottom:10px}
.path-card > p{color:var(--muted);font-size:15px;max-width:62ch}
.checks{margin-top:18px;display:grid;gap:10px}
.checks li{
  position:relative;padding-left:20px;
  font-size:14px;color:var(--ink);line-height:1.8;
}
.checks li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.path-media{
  margin-top:20px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
}
.path-media img{width:100%;height:190px;object-fit:cover;transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.path-card:hover .path-media img{transform:scale(1.03)}
.path-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}
.path-meta .tip{font-size:13px;color:var(--muted)}

/* ---------- ink metrics ---------- */
.ink-grid{
  position:relative;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:rgba(246,245,241,.14);
  border:1px solid rgba(246,245,241,.14);
  border-radius:var(--r-card);
  overflow:hidden;
}
.ink-grid::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(246,245,241,.06) 1px,transparent 1px);
  background-size:72px 100%;
}
.metric{background:var(--ink);padding:32px 28px;position:relative;z-index:1}
.metric .m-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(36px,4vw,56px);font-weight:800;line-height:1.05;
  color:var(--paper);letter-spacing:-.02em;
}
.metric .m-num small{font-size:.42em;font-weight:600;color:var(--brand-on-dark);margin-left:4px;letter-spacing:0}
.metric .m-label{margin-top:12px;font-size:14px;font-weight:600;color:var(--paper)}
.metric .m-desc{margin-top:6px;font-size:13px;color:rgba(246,245,241,.6);line-height:1.75}

/* ---------- scene cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s cubic-bezier(.2,.8,.2,1),box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(15,107,88,.3)}
.card-media{overflow:hidden}
.card-media img{width:100%;height:180px;object-fit:cover;transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;font-weight:600}
.card-body p{font-size:14px;color:var(--muted)}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted)}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{position:relative;border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  padding:22px 0;font-size:17px;font-weight:600;
  transition:padding .22s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary .chev{
  flex:none;width:10px;height:10px;margin-top:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);
  transition:transform .24s cubic-bezier(.2,.8,.2,1);
}
.faq-item[open] summary .chev{transform:rotate(-135deg)}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;
  background:var(--brand);border-radius:2px;
}
.faq-item[open] summary{padding-left:18px;color:var(--brand)}
.faq-body{padding:0 0 24px 18px;max-width:74ch;color:var(--muted);font-size:15px}

/* ---------- cta ---------- */
.cta-bar{
  background:var(--brand);color:var(--paper);
  border-radius:var(--r-card);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-bar h2{font-size:clamp(22px,2.3vw,28px);font-weight:700;color:var(--paper)}
.cta-bar p{margin-top:10px;font-size:15px;color:rgba(246,245,241,.8);max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cta-foot{margin-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.cta-foot a{font-weight:600}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:72px 0 0;border-top:1px solid rgba(246,245,241,.14)}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(246,245,241,.14);
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand b{font-size:16px;font-weight:800;color:var(--paper);display:block;line-height:1.2}
.footer-brand i{font-style:normal;font-size:11px;letter-spacing:.16em;color:rgba(246,245,241,.6);display:block}
.site-footer p{font-size:14px;color:rgba(246,245,241,.66);max-width:38ch}
.footer-col h3{font-size:15px;font-weight:600;color:var(--paper);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:rgba(246,245,241,.66)}
.footer-col a{color:rgba(246,245,241,.66)}
.footer-col a:hover{color:var(--brand-on-dark)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:24px 0;font-size:13px;color:rgba(246,245,241,.5);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s cubic-bezier(.2,.8,.2,1),transform .3s cubic-bezier(.2,.8,.2,1)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .path-layout{grid-template-columns:236px minmax(0,1fr);gap:40px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-wrap{display:flex;flex-wrap:wrap;align-items:center;gap:10px;height:60px}
  .nav-toggle{display:grid;place-items:center;order:1}
  .brand{order:2;margin:0 auto}
  .nav-cta-icon{
    display:grid;place-items:center;order:3;
    width:40px;height:40px;border-radius:8px;
    border:1px solid var(--line);color:var(--brand);font-size:15px;
  }
  .nav-group{
    display:none;order:5;width:100%;
    flex-direction:column;align-items:stretch;gap:2px;
    padding-top:8px;
  }
  .nav-group--right{border-top:1px solid var(--line);margin-top:10px;padding-top:12px}
  .site-header.is-open .nav-wrap{height:auto;padding-bottom:16px}
  .site-header.is-open .nav-group{display:flex;animation:dropIn .24s cubic-bezier(.2,.8,.2,1)}
  .nav-link{padding:11px 4px;font-size:15px}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--brand)}
  .nav-group--right .btn{width:100%;margin-top:10px}
  body.nav-open{overflow:hidden}

  .hero-grid{grid-template-columns:1fr;gap:28px;padding:36px 0;min-height:auto}
  .hero-visual img{height:200px}
  .hero-note{left:auto;right:16px;bottom:14px}
  .section{padding:76px 0}
  .section--tight{padding:64px 0}
  .path-layout{grid-template-columns:1fr;gap:32px}
  .toc{position:static}
  .ink-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .cta-bar{padding:32px 28px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  body{font-size:15.5px}
  .section{padding:64px 0}
  .section-head{margin-bottom:32px}
  .path-item{padding-left:54px;padding-bottom:28px}
  .path-item::before{left:17px;top:44px}
  .path-num{width:36px;height:36px;font-size:13px}
  .path-card{padding:20px 20px 18px}
  .path-card h3{font-size:18px}
  .checks li{font-size:13.5px}
  .ink-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-bar{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq-item summary{font-size:16px}
  .hero-visual img{height:170px}
}
@keyframes dropIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink:#101315;
  --paper:#F6F5F1;
  --white:#FFFFFF;
  --green:#0F6B58;
  --green-deep:#0A4A3D;
  --amber:#D9601F;
  --line:#E4E1DA;
  --muted:#6B6F6C;
  --ok:#1F7A55;
  --info:#2C6FB5;
  --warn:#B7791F;
  --err:#B23A32;
  --radius-btn:8px;
  --radius-card:12px;
  --radius-tag:999px;
  --shadow-card:0 1px 0 rgba(16,19,21,.02);
  --shadow-lift:0 8px 24px rgba(16,19,21,.08);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;
  --font-num:'Inter','Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--green);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--green-deep)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--green);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,245,241,.94);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 var(--line),0 10px 24px rgba(16,19,21,.06);
}
.nav-wrap{
  display:flex;align-items:center;gap:16px;
  height:72px;
}
.nav-group{
  flex:1;display:flex;align-items:center;gap:28px;
}
.nav-group--left{justify-content:flex-end}
.nav-group--right{justify-content:flex-start}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;
  color:var(--muted);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;
  width:100%;height:2px;background:var(--green);
  transform:translateX(-50%) scaleX(0);
  transform-origin:center;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--green);color:var(--paper);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:18px;
  line-height:1;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{
  font-family:var(--font-num);font-size:17px;font-weight:700;letter-spacing:.02em;
}
.brand-text i{
  font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.14em;
}
.nav-toggle,.nav-cta-icon{
  display:none;width:40px;height:40px;border-radius:8px;
  align-items:center;justify-content:center;
  color:var(--ink);border:1px solid var(--line);background:var(--white);
}
.nav-cta-icon{background:var(--green);color:var(--paper);border-color:var(--green)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background .12s var(--ease),color .12s var(--ease),border-color .12s var(--ease),transform .16s var(--ease);
}
.btn i{transition:transform .16s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--primary{background:var(--green);color:var(--paper)}
.btn--primary:hover{background:var(--green-deep);color:var(--paper)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{background:rgba(15,107,88,.06);border-color:var(--green);color:var(--green-deep)}
.btn--text{
  height:auto;padding:0;background:none;border:0;color:var(--green);font-weight:600;
}
.btn--text:hover{color:var(--green-deep)}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-tag);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(15,107,88,.1);color:var(--green);
}
.tag--warm{background:rgba(217,96,31,.1);color:var(--amber)}
.tag--dark{background:rgba(246,245,241,.12);color:var(--paper)}

/* ---------- hero ---------- */
.hero{
  background:var(--white);
  border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.hero-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  min-height:280px;padding:52px 0;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(16,19,21,.05) 1px,transparent 1px);
  background-size:80px 100%;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.5),transparent 70%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.5),transparent 70%);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--green);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--green)}
.hero h1{
  font-size:clamp(30px,4vw,46px);
  font-weight:800;line-height:1.12;letter-spacing:-.01em;
}
.hero-lead{
  margin-top:16px;max-width:36em;color:var(--muted);font-size:16.5px;
}
.hero-crumbs{
  margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
}
.hero-crumbs a{color:var(--muted)}
.hero-crumbs a:hover{color:var(--green)}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;height:210px;object-fit:cover;
  border-radius:var(--radius-card);border:1px solid var(--line);
}
.hero-frame{
  position:absolute;inset:-14px -14px 26px 26px;
  border:1px dashed rgba(15,107,88,.45);border-radius:14px;pointer-events:none;
}
.float-card{
  position:absolute;left:-10px;bottom:-14px;
  background:var(--white);border:1px dashed var(--green);
  border-radius:10px;padding:10px 14px;min-width:186px;
  box-shadow:var(--shadow-lift);
}
.float-card b{display:block;font-size:13px;font-weight:700}
.float-card span{display:block;font-size:12px;color:var(--muted);margin-top:2px}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section--white{background:var(--white)}
.section--dark{background:var(--ink);color:var(--paper)}
.section--tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.24;letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.section--dark .section-head p{color:rgba(246,245,241,.72)}
.section--dark .eyebrow{color:#69C9B1}
.section--dark .eyebrow::before{background:#69C9B1}

/* ---------- stagger cards ---------- */
.stagger-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.stagger-col{display:flex;flex-direction:column;gap:32px}
.stagger-col--offset{margin-top:56px}
.card{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.section--white .card{background:var(--paper)}
.card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-lift);
  border-color:rgba(15,107,88,.3);
}
.card h3{font-size:20px;font-weight:600;margin-top:14px;line-height:1.4}
.card p{margin-top:10px;color:var(--muted);font-size:15px}
.card-media{
  border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--paper);
}
.card-media img{width:100%;height:190px;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}

/* ---------- quote band ---------- */
.quote-band{position:relative;overflow:hidden;padding:72px 0}
.quote-band::before,.quote-band::after{
  content:"";position:absolute;left:0;right:0;height:1px;background:rgba(246,245,241,.14);
}
.quote-band::before{top:20px}
.quote-band::after{bottom:20px}
.quote-grid{
  display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:center;
}
.quote-grid blockquote{
  font-size:clamp(20px,2.2vw,28px);font-weight:700;line-height:1.5;letter-spacing:-.01em;
  border-left:3px solid var(--green);padding-left:22px;
}
.quote-side{border:1px solid rgba(246,245,241,.14);border-radius:var(--radius-card);padding:20px}
.quote-side li{
  display:flex;justify-content:space-between;gap:16px;
  padding:10px 0;border-bottom:1px dashed rgba(246,245,241,.16);font-size:14px;
}
.quote-side li:last-child{border-bottom:0}
.quote-side span:first-child{color:rgba(246,245,241,.66)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;position:relative;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:rgba(15,107,88,.3);box-shadow:var(--shadow-lift)}
.step-num{
  font-family:var(--font-num);font-size:40px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.2px var(--green);
}
.step h3{font-size:17px;font-weight:600;margin-top:14px}
.step p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ---------- faq ---------- */
.faq{max-width:880px}
.faq-item{
  position:relative;border-bottom:1px solid var(--line);padding-left:18px;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  background:var(--green);transform:scaleY(0);transform-origin:top;
  transition:transform .24s var(--ease);
}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{
  color:var(--green);font-size:14px;flex:0 0 auto;
  transition:transform .24s var(--ease);
}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-body{padding:0 0 22px;color:var(--muted);font-size:15.5px;max-width:64ch}

/* ---------- cta ---------- */
.cta-band{padding:0 0 96px}
.cta-inner{
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;
  border:1px dashed rgba(15,107,88,.35);border-radius:50%;pointer-events:none;
}
.cta-inner h2{font-size:clamp(20px,2.2vw,26px);font-weight:700}
.cta-inner p{margin-top:8px;color:var(--muted);font-size:15px;max-width:52ch}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:72px 0 32px;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--green)}
.footer-brand b{font-family:var(--font-num);font-size:17px;display:block;line-height:1.2}
.footer-brand i{font-style:normal;font-size:11px;letter-spacing:.14em;color:rgba(246,245,241,.6)}
.site-footer p{color:rgba(246,245,241,.68);font-size:14.5px;max-width:36ch}
.footer-col h3{font-size:14px;font-weight:600;letter-spacing:.08em;color:rgba(246,245,241,.55);margin-bottom:16px}
.footer-col li{margin-bottom:10px;font-size:14.5px;color:rgba(246,245,241,.82)}
.footer-col a{color:rgba(246,245,241,.82)}
.footer-col a:hover{color:#69C9B1}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(246,245,241,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,245,241,.55);
}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:var(--white);border-bottom:1px solid var(--line);
  padding:76px 20px 28px;
  transform:translateY(-104%);
  transition:transform .32s var(--ease);
  box-shadow:0 18px 40px rgba(16,19,21,.12);
}
.mobile-drawer.is-open{transform:translateY(0)}
.mobile-drawer ul{display:flex;flex-direction:column;gap:4px}
.mobile-drawer li a,.mobile-drawer .drawer-plain{
  display:block;padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--ink);
}
.mobile-drawer li a.is-active{color:var(--green);font-weight:600}
.mobile-drawer .btn{width:100%;margin-top:20px}
body.nav-locked{overflow:hidden}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-group{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta-icon{display:inline-flex}
  .nav-wrap{height:60px;justify-content:space-between}
  .brand{position:absolute;left:50%;transform:translateX(-50%)}
  .site-header .container{position:relative}
  .hero-inner{grid-template-columns:1fr;gap:32px;min-height:0;padding:40px 0 44px}
  .hero-figure img{height:190px}
  .hero-frame{inset:-10px -10px 18px 18px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .steps{grid-template-columns:1fr 1fr}
  .quote-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px}
  .cta-band{padding-bottom:72px}
}
@media (max-width:767px){
  .stagger-grid{grid-template-columns:1fr;gap:24px}
  .stagger-col--offset{margin-top:0}
  .stagger-col{gap:24px}
  .hero h1{font-size:clamp(26px,7vw,34px)}
  .card-media img{height:170px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .steps{grid-template-columns:1fr}
  .brand-text i{display:none}
  .float-card{left:-6px;bottom:-12px;min-width:170px}
  .cta-inner{padding:26px 22px}
}

/* roulang page: category3 */
:root{
  --ink:#101315;
  --ink-soft:#1b2023;
  --spruce:#0F6B58;
  --spruce-dark:#0A4A3D;
  --spruce-a10:rgba(15,107,88,.10);
  --spruce-a30:rgba(15,107,88,.30);
  --amber:#D9601F;
  --paper:#F6F5F1;
  --white:#FFFFFF;
  --line:#E4E1DA;
  --line-dark:rgba(246,245,241,.14);
  --muted:#6B6F6C;
  --success:#1F7A55;
  --info:#2C6FB5;
  --warning:#B7791F;
  --error:#B23A32;
  --radius-btn:8px;
  --radius-card:12px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(16,19,21,.08);
  --font-cn:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;
  --font-num:'Inter','Helvetica Neue','PingFang SC',Arial,sans-serif;
  --section-y:104px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  font-feature-settings:"tnum" 1;
  -webkit-font-smoothing:antialiased;
}
body.nav-locked{overflow:hidden}
img{max-width:100%;display:block;border-radius:var(--radius-card)}
a{color:inherit;text-decoration:none;transition:color .16s ease}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.005em}
p{margin:0}
ul,ol{margin:0;padding:0}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
:focus-visible{outline:2px solid var(--spruce);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.section{padding:var(--section-y) 0}
.section--white{background:var(--white)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--spruce);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--spruce)}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:var(--spruce-a10);color:var(--spruce);
  font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.tag--amber{background:rgba(217,96,31,.10);color:var(--amber)}
.tag--plain{background:rgba(16,19,21,.05);color:var(--muted)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:background-color .12s ease,color .12s ease,border-color .12s ease,transform .12s ease;
}
.btn i{transition:transform .12s ease}
.btn:hover i{transform:translateX(4px)}
.btn--primary{background:var(--spruce);color:var(--paper)}
.btn--primary:hover{background:var(--spruce-dark)}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{border-color:var(--spruce);background:rgba(15,107,88,.06);color:var(--spruce-dark)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--spruce);
}
.text-link i{transition:transform .12s ease}
.text-link:hover{color:var(--spruce-dark)}
.text-link:hover i{transform:translateX(4px)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{
  background:rgba(246,245,241,.92);
  backdrop-filter:saturate(140%) blur(8px);
  box-shadow:0 6px 20px rgba(16,19,21,.07);
}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;gap:24px;height:var(--nav-h);
}
.nav-group{display:flex;align-items:center;gap:30px}
.nav-group--left{justify-content:flex-end}
.nav-group--right{justify-content:flex-start}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;
  background:var(--spruce);transform:translateX(-50%);
  transition:width .24s cubic-bezier(.2,.8,.2,1);
}
.nav-link:hover{color:var(--spruce)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--spruce);font-weight:600}
.nav-link.is-active::after{width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--spruce);
  color:var(--paper);font-family:var(--font-num);font-weight:800;font-size:19px;
  display:inline-flex;align-items:center;justify-content:center;line-height:1;
  flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-family:var(--font-num);font-size:17px;font-weight:800;letter-spacing:.01em}
.brand-text i{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.12em}
.nav-toggle,.nav-cta-icon{display:none}
.nav-cta-icon{
  width:40px;height:40px;border-radius:var(--radius-btn);background:var(--spruce);color:var(--paper);
  align-items:center;justify-content:center;font-size:15px;
}
.nav-drawer{display:none}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--paper)}
.crumb{
  display:flex;align-items:center;gap:10px;height:52px;
  font-size:13px;color:var(--muted);overflow:hidden;white-space:nowrap;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--spruce)}
.crumb .sep{color:#c6c3ba}
.crumb .now{color:var(--ink);font-weight:600}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  background:var(--white);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(16,19,21,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(16,19,21,.035) 1px,transparent 1px);
  background-size:56px 56px;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:56px;align-items:center;padding:56px 0 60px;
}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--spruce);margin-bottom:18px;
}
.hero-kicker::before{content:"";width:22px;height:1px;background:var(--spruce)}
.page-hero h1{
  font-size:clamp(30px,3.8vw,46px);font-weight:800;line-height:1.15;
  letter-spacing:-.01em;margin-bottom:18px;
}
.hero-lede{font-size:16px;color:var(--muted);max-width:560px;margin-bottom:22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{position:relative}
.hero-visual .shot{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 12px 34px rgba(16,19,21,.10);
}
.hero-visual .shot img{width:100%;height:230px;object-fit:cover;border-radius:0}
.hero-visual .shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,19,21,.05),rgba(16,19,21,.28));
}
.voucher{
  position:absolute;left:-18px;bottom:22px;
  background:rgba(255,255,255,.96);
  border:1px dashed var(--spruce-a30);
  border-radius:var(--radius-card);
  padding:14px 18px;min-width:196px;
  box-shadow:0 10px 26px rgba(16,19,21,.10);
}
.voucher .v-title{font-family:var(--font-num);font-size:12px;font-weight:700;color:var(--spruce);letter-spacing:.1em}
.voucher .v-line{font-size:13px;color:var(--ink);margin-top:6px}
.voucher .v-line span{color:var(--muted)}
.hero-frame{
  position:absolute;right:-10px;top:-14px;width:120px;height:78px;
  border-top:1px solid var(--spruce-a30);border-right:1px solid var(--spruce-a30);
  border-radius:0 10px 0 0;pointer-events:none;
}

/* ---------- numbered list ---------- */
.num-list{list-style:none;border-top:1px solid var(--line)}
.num-item{
  display:grid;grid-template-columns:112px minmax(0,1fr) 132px;
  gap:32px;align-items:start;
  padding:34px 24px 34px 8px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease,padding-left .2s ease;
}
.num-item:hover{background:var(--white);padding-left:20px}
.num-index{
  font-family:var(--font-num);font-size:46px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;color:var(--spruce);
}
@supports (-webkit-text-stroke:1px #000){
  .num-index{color:transparent;-webkit-text-stroke:1.6px var(--spruce)}
}
.num-body h3{font-size:20px;font-weight:600;margin-bottom:10px}
.num-body h3 .dot{
  display:inline-block;width:6px;height:6px;background:var(--spruce);
  border-radius:1px;margin-right:10px;transform:translateY(-3px);
}
.num-body p{font-size:15px;color:var(--muted);max-width:660px}
.num-meta{
  margin-top:12px;font-size:13px;color:var(--ink);
  border-left:3px solid var(--spruce-a30);padding-left:12px;
}
.num-meta em{font-style:normal;color:var(--spruce);font-weight:600}
.num-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.num-side .step-hint{font-family:var(--font-num);font-size:12px;color:var(--muted);letter-spacing:.08em}

/* ---------- path flow ---------- */
.path-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.path-step{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px 24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.path-step:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:var(--spruce-a30)}
.path-step .step-no{
  font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--spruce);margin-bottom:14px;
}
.path-step h3{font-size:17px;font-weight:600;margin-bottom:10px}
.path-step p{font-size:14px;color:var(--muted);line-height:1.8}
.step-bar{height:3px;border-radius:2px;background:rgba(16,19,21,.07);margin-top:20px;overflow:hidden}
.step-bar i{display:block;height:100%;background:var(--spruce);border-radius:2px}
.path-step:nth-child(1) .step-bar i{width:25%}
.path-step:nth-child(2) .step-bar i{width:50%}
.path-step:nth-child(3) .step-bar i{width:75%}
.path-step:nth-child(4) .step-bar i{width:100%}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:64px;align-items:start}
.check-list{list-style:none;display:grid;gap:14px}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;font-size:15px;
  transition:border-color .2s ease,transform .2s ease;
}
.check-list li:hover{border-color:var(--spruce-a30);transform:translateY(-2px)}
.check-list i{color:var(--spruce);font-size:14px;margin-top:6px;flex:none}
.check-list strong{display:block;font-weight:600;font-size:15px;margin-bottom:2px}
.check-list span{color:var(--muted);font-size:14px}
aside.note{
  border-left:3px solid var(--spruce);padding:4px 0 4px 20px;
  margin-top:24px;color:var(--muted);font-size:14px;
}

/* ---------- dark stats ---------- */
.dark-block{
  position:relative;background:var(--ink);color:var(--paper);overflow:hidden;
  padding:88px 0;
}
.dark-block::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(246,245,241,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(246,245,241,.055) 1px,transparent 1px);
  background-size:72px 72px;
}
.dark-inner{position:relative}
.dark-head{max-width:660px;margin-bottom:52px}
.dark-head .eyebrow{color:#5fbfa6}
.dark-head .eyebrow::before{background:#5fbfa6}
.dark-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;margin-bottom:14px}
.dark-head p{color:rgba(246,245,241,.68)}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line-dark)}
.stat-item{
  padding:34px 28px 34px 0;
  border-right:1px solid var(--line-dark);
}
.stat-item:last-child{border-right:0}
.stat-num{
  font-family:var(--font-num);font-size:clamp(38px,4.6vw,60px);font-weight:800;
  line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.01em;color:var(--paper);
}
.stat-num small{font-size:15px;font-weight:600;color:#5fbfa6;margin-left:6px;letter-spacing:0}
.stat-label{font-size:14px;font-weight:600;margin-top:16px;color:var(--paper)}
.stat-desc{font-size:13px;color:rgba(246,245,241,.6);margin-top:6px;line-height:1.7}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.faq-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:4px 22px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-card[open]{border-color:var(--spruce-a30);box-shadow:var(--shadow-card)}
.faq-card summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 34px 20px 0;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-card summary::-webkit-details-marker{display:none}
.faq-card summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  position:absolute;right:0;top:26px;color:var(--muted);
  transition:transform .24s ease,color .24s ease;
}
.faq-card[open] summary::after{transform:rotate(180deg);color:var(--spruce)}
.faq-card[open] summary{color:var(--spruce)}
.faq-body{
  font-size:14px;color:var(--muted);line-height:1.85;
  border-top:1px solid var(--line);padding:16px 0 22px;
}
.faq-card summary::before{
  content:"";position:absolute;left:-22px;top:22px;bottom:18px;width:3px;
  background:var(--spruce);border-radius:2px;
  transform:scaleY(0);transform-origin:top;transition:transform .24s ease;
}
.faq-card[open] summary::before{transform:scaleY(1)}

/* ---------- cta ---------- */
.cta-band{padding:0 0 var(--section-y)}
.cta-card{
  background:var(--white);border:1px solid var(--line);border-radius:16px;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  position:relative;overflow:hidden;
}
.cta-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--spruce);
}
.cta-copy h2{font-size:clamp(22px,2.2vw,28px);font-weight:700;margin-bottom:10px}
.cta-copy p{font-size:15px;color:var(--muted);max-width:620px}
.cta-actions{display:flex;align-items:center;gap:20px;flex:none}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:var(--spruce)}
.footer-brand b{font-family:var(--font-num);font-size:17px;font-weight:800;display:block;line-height:1.2}
.footer-brand i{font-style:normal;font-size:11px;letter-spacing:.12em;color:rgba(246,245,241,.6)}
.site-footer p{font-size:14px;color:rgba(246,245,241,.66);max-width:340px;line-height:1.85}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--paper)}
.footer-col ul{list-style:none;display:grid;gap:12px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(246,245,241,.66)}
.footer-col a:hover{color:#5fbfa6}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,245,241,.5);
}

/* ---------- motion ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .3s cubic-bezier(.2,.8,.2,1),transform .3s cubic-bezier(.2,.8,.2,1)}
.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .js .reveal{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
  :root{--section-y:88px}
}
@media (max-width:1023px){
  :root{--nav-h:60px;--section-y:72px}
  .container{padding:0 24px}
  .nav-wrap{grid-template-columns:44px 1fr 44px;height:var(--nav-h);gap:12px}
  .nav-group{display:none}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:var(--radius-btn);color:var(--ink);font-size:17px;
  }
  .nav-toggle:hover{background:rgba(16,19,21,.05)}
  .nav-cta-icon{display:inline-flex;justify-self:end}
  .brand{justify-self:center}
  .nav-drawer{
    display:block;overflow:hidden;max-height:0;
    transition:max-height .28s cubic-bezier(.2,.8,.2,1);
  }
  .nav-drawer.is-open{max-height:420px}
  .nav-drawer .drawer-inner{
    padding:8px 0 24px;border-top:1px solid var(--line);
    display:grid;gap:4px;
  }
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:15px 4px;font-size:16px;font-weight:500;border-bottom:1px solid var(--line);
  }
  .drawer-link i{color:var(--muted);font-size:13px}
  .drawer-link.is-active{color:var(--spruce)}
  .nav-drawer .btn{width:100%;margin-top:16px}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:44px 0 52px}
  .hero-visual .shot img{height:200px}
  .voucher{left:12px;bottom:12px}
  .hero-frame{display:none}
  .num-item{grid-template-columns:80px minmax(0,1fr);gap:20px;padding:28px 0}
  .num-index{font-size:38px}
  .num-side{grid-column:2;align-items:flex-start}
  .path-flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .check-grid{grid-template-columns:1fr;gap:36px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-item{border-right:0;border-bottom:1px solid var(--line-dark);padding:28px 20px 28px 0}
  .stat-item:nth-child(odd){border-right:1px solid var(--line-dark)}
  .stat-item:nth-last-child(-n+2){border-bottom:0}
  .faq-grid{grid-template-columns:1fr}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:639px){
  :root{--section-y:64px}
  .container{padding:0 20px}
  body{font-size:15px}
  .page-hero h1{font-size:30px}
  .section-head{margin-bottom:32px}
  .num-item{grid-template-columns:56px minmax(0,1fr);gap:14px}
  .num-index{font-size:30px}
  .num-item:hover{padding-left:0}
  .path-flow{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr}
  .stat-item{border-right:0 !important;border-bottom:1px solid var(--line-dark);padding-right:0}
  .stat-item:last-child{border-bottom:0}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .dark-block{padding:64px 0}
}