/* roulang page: index */
:root{
  --ink:#0F2A22;
  --brand:#C8F230;
  --brand-dark:#A8CE1F;
  --accent:#E4572E;
  --text:#1B2B26;
  --muted:#5E756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --shadow-sm:0 1px 2px rgba(15,42,34,.06);
  --shadow-lg:0 20px 40px -22px rgba(15,42,34,.28);
  --r-card:18px;
  --r-img:12px;
  --r-pill:999px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:8px}
.container-x{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%}
@media (min-width:1024px){.container-x{padding:0 32px}}
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:104px 0}}
.eyebrow{
  font-size:13px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);font-weight:700;display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent));border-radius:2px}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700}
.sec-sub{color:var(--muted);font-size:16px;max-width:660px;margin-top:12px}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .28s ease}
.site-header .grad-line{height:3px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .28s ease}
.site-header.is-scrolled .nav-wrap{height:60px}
.site-header.is-scrolled{box-shadow:0 10px 28px -20px rgba(15,42,34,.4)}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;background:var(--ink);color:var(--brand);
  font-size:14px;font-weight:800;letter-spacing:0;
}
.main-nav{display:none;align-items:center;gap:6px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--r-pill);font-size:15px;color:#2C4139;transition:background .22s ease,color .22s ease;white-space:nowrap}
.nav-link:hover{background:rgba(200,242,48,.16);color:var(--ink)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;display:none;align-items:center;justify-content:center;
  border-radius:var(--r-pill);border:1px solid var(--line);color:var(--ink);background:#fff;transition:.22s ease;
}
@media (min-width:1024px){.icon-btn{display:inline-flex}}
.icon-btn:hover{border-color:var(--ink);background:var(--bg)}
.burger{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--line);background:#fff}
@media (min-width:1024px){.burger{display:none}}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 28px;border-radius:var(--r-pill);font-weight:600;font-size:16px;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;white-space:nowrap}
.btn-primary{background:var(--brand);color:var(--ink);box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:rgba(15,42,34,.08);transform:translateY(-1px)}
.btn-sm{height:44px;padding:0 20px;font-size:15px}
.btn-full{width:100%}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--brand);transform:translateY(-1px)}

/* ---------- tags ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600}
.tag-accent{background:rgba(228,87,46,.12);color:var(--accent)}
.tag-outline{border:1px solid var(--ink);color:var(--ink)}
.tag-soft{background:rgba(15,42,34,.07);color:var(--ink)}

/* ---------- hero ---------- */
.hero{padding:48px 0 64px}
@media (min-width:1024px){.hero{padding:72px 0 96px}}
.hero-grid{display:grid;gap:36px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px}}
.hero h1{font-size:clamp(30px,4.2vw,54px);line-height:1.18;font-weight:800;letter-spacing:-.02em}
.hero-lead{margin-top:20px;font-size:17px;color:var(--muted);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.stat-num{font-size:26px;font-weight:800;color:var(--accent);line-height:1.2;letter-spacing:-.02em}
.stat-label{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.6}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;background:var(--line);box-shadow:var(--shadow-lg)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
@media (max-width:639px){.hero-media img{aspect-ratio:16/9}}

/* ---------- claim band ---------- */
.claim{background:var(--ink);color:#EDF3EF;padding:56px 0}
@media (min-width:1024px){.claim{padding:88px 0}}
.claim-grid{display:grid;gap:28px}
@media (min-width:1024px){.claim-grid{grid-template-columns:4fr 8fr;gap:56px}}
.claim-side{display:flex;flex-direction:column;gap:14px}
.claim-side .vlabel{writing-mode:vertical-rl;letter-spacing:.28em;font-size:12.5px;color:var(--brand);text-transform:uppercase}
.claim-num{font-size:74px;font-weight:800;color:rgba(200,242,48,.22);line-height:1;letter-spacing:-.04em}
.claim p{font-size:17px;line-height:1.95;color:#DCE7E1;max-width:760px}
.claim .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.claim .tag-outline{border-color:rgba(237,243,239,.4);color:#EDF3EF}

/* ---------- story ---------- */
.story-row{display:grid;gap:32px;align-items:center}
@media (min-width:1024px){.story-row{grid-template-columns:5fr 6fr;gap:64px}}
.story-row + .story-row{margin-top:72px}
@media (min-width:1024px){.story-row + .story-row{margin-top:112px}}
@media (min-width:1024px){.story-row.reverse .story-media{order:2}}
.story-media{border-radius:var(--r-img);overflow:hidden;background:var(--line);box-shadow:var(--shadow-sm)}
.story-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease}
.story-media:hover img{transform:scale(1.03)}
.story-body h2{font-size:clamp(23px,2.6vw,30px);line-height:1.28;margin-bottom:16px}
.story-body p{color:var(--muted);margin-bottom:14px}
.point-list{margin:22px 0}
.point-list li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-top:1px solid var(--line);font-size:15.5px;color:var(--text)}
.point-list li:last-child{border-bottom:1px solid var(--line)}
.point-list li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:10px;border-radius:2px;background:var(--brand)}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink);border-bottom:2px solid var(--brand);padding-bottom:3px;transition:color .22s ease}
.text-link:hover{color:var(--accent)}

/* ---------- featured cards ---------- */
.feat-grid{display:grid;gap:24px}
@media (min-width:1024px){.feat-grid{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-sm);transition:transform .28s ease,box-shadow .28s ease;display:flex;flex-direction:column;height:100%}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.card-img{border-radius:var(--r-img);overflow:hidden;background:var(--bg);margin-bottom:18px}
.card-img img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease}
.card:hover .card-img img{transform:scale(1.03)}
.card h3{font-size:19px;line-height:1.45;margin:12px 0 10px}
.card h3 a:hover{color:var(--accent)}
.card p{color:var(--muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .meta{margin-top:auto;padding-top:16px;font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:10px}
.feat-wide{grid-column:auto}
@media (min-width:1024px){
  .feat-wide{grid-column:span 2}
  .feat-wide .card-img img{aspect-ratio:16/9}
}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- cms list ---------- */
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:132px 1fr;gap:20px;padding:22px 0 22px 14px;border-bottom:1px solid var(--line);position:relative;transition:background .22s ease}
.news-item::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;background:transparent;transition:background .22s ease}
.news-item:hover::before{background:var(--brand)}
.news-item:hover{background:rgba(255,255,255,.7)}
.news-thumb{border-radius:var(--r-img);overflow:hidden;background:var(--bg)}
.news-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover}
.news-body h3{font-size:18px;line-height:1.5;margin-bottom:8px}
.news-body h3 a:hover{color:var(--accent)}
.news-body p{color:var(--muted);font-size:15px;margin-bottom:12px}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--muted)}
.empty-state{border:1.5px dashed var(--line);border-radius:var(--r-card);padding:40px 24px;text-align:center;background:var(--surface);max-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px}
.empty-state svg{color:var(--muted)}
.empty-state p{color:var(--muted);font-size:15px}

/* ---------- trust ---------- */
.trust-grid{display:grid;gap:20px;grid-template-columns:repeat(2,1fr)}
@media (min-width:1024px){.trust-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.trust-cell{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--shadow-sm)}
.trust-cell .num{font-size:34px;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.1}
.trust-cell .lbl{font-size:14px;color:var(--muted);margin-top:8px}
.partner-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;padding-top:28px;border-top:1px solid var(--line)}
.partner{filter:grayscale(1);opacity:.62;transition:filter .25s ease,opacity .25s ease;font-size:14px;color:var(--ink);border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 18px;background:#fff}
.partner:hover{filter:grayscale(0);opacity:1;border-color:var(--brand)}

/* ---------- faq ---------- */
.faq-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:16px 22px;font-weight:600;color:var(--ink);font-size:16.5px;transition:background .22s ease}
.faq-q:hover{background:rgba(200,242,48,.1)}
.faq-q svg{flex:0 0 auto;transition:transform .28s ease;color:var(--muted)}
.faq-item.is-open .faq-q svg{transform:rotate(180deg)}
.faq-a{display:none;padding:0 22px 20px;color:var(--muted);font-size:15.5px;line-height:1.8}
.faq-item.is-open .faq-a{display:block}

/* ---------- cta ---------- */
.cta-band{background:var(--ink);color:#EDF3EF;padding:56px 0;position:relative;overflow:hidden}
@media (min-width:1024px){.cta-band{padding:88px 0}}
.cta-band::after{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.14;pointer-events:none}
.cta-inner{position:relative;z-index:1;display:grid;gap:32px}
@media (min-width:1024px){.cta-inner{grid-template-columns:6fr 4fr;gap:56px;align-items:center}}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);line-height:1.3}
.cta-band p{color:#CBD9D2;margin-top:14px;max-width:560px}
.sub-form{display:flex;gap:12px}
.sub-form input{flex:1;height:50px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;padding:0 20px;font-size:15px}
.sub-form input::placeholder{color:#9FB3AB}
.sub-form input:focus{border-color:var(--brand);outline:2px solid var(--brand);outline-offset:1px}
.cta-note{font-size:13px;color:#93A8A0;margin-top:14px}
@media (max-width:639px){.sub-form{flex-direction:column}.sub-form input,.sub-form .btn{width:100%}}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#BFCFC7;padding:64px 0 0;font-size:15px}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr;gap:48px}}
.footer-brand{color:#fff;font-weight:800;font-size:17px;display:inline-flex;align-items:center;gap:10px}
.footer-brand .brand-mark{background:var(--brand);color:var(--ink)}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.06em;margin-bottom:16px;font-weight:700}
.footer-col a{display:block;line-height:2.1;color:#BFCFC7;transition:color .22s ease}
.footer-col a:hover{color:var(--brand)}
.footer-desc{margin-top:16px;line-height:1.9;color:#A9BCB3;max-width:340px}
.qr-box{width:96px;height:96px;border-radius:12px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#8FA79D;font-size:12.5px;text-align:center;margin-top:14px}
.footer-bottom{margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:#93A8A0}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(15,42,34,.5);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:400px;background:#fff;z-index:90;transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;padding:20px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:52px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink)}
.drawer-nav a:hover{color:var(--accent)}
.drawer-cta{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.drawer-contact{margin-top:26px;font-size:14px;color:var(--muted);line-height:1.9}
body.no-scroll{overflow:hidden}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink:#0F2A22;
  --brand:#C8F230;
  --brand-dark:#A8CE1F;
  --accent:#E4572E;
  --text:#1B2B26;
  --muted:#5E756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --radius-card:18px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(15,42,34,.06);
  --shadow-2:0 20px 40px -22px rgba(15,42,34,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,opacity .22s ease;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  .container-x{padding-left:32px;padding-right:32px;}
}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,height .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(15,42,34,.42);}
.grad-line{
  height:3px;
  width:100%;
  background:linear-gradient(90deg,var(--brand) 0%,var(--accent) 100%);
}
.nav-wrap{
  height:72px;
  display:flex;
  align-items:center;
  gap:20px;
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  white-space:nowrap;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  border-radius:10px;
  background:var(--ink);
  color:var(--brand);
  font-size:13px;
  font-weight:800;
  letter-spacing:.02em;
  text-transform:lowercase;
}
.main-nav{
  display:none;
  align-items:center;
  gap:4px;
  margin-left:24px;
  flex:1;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
}
.nav-link:hover{color:var(--ink);background:rgba(200,242,48,.18);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:999px;
  color:var(--ink);
  border:1px solid var(--line);
  background:var(--surface);
  transition:background-color .22s ease,transform .22s ease,border-color .22s ease;
}
.icon-btn:hover{background:#F1F6E4;border-color:var(--brand-dark);transform:translateY(-1px);}
.burger{
  width:44px;
  height:44px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
}
.burger span,
.burger span::before,
.burger span::after{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  position:relative;
}
.burger span::before,
.burger span::after{content:"";position:absolute;left:0;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
@media (min-width:1024px){
  .main-nav{display:flex;}
  .burger{display:none;}
}

/* ============ Drawer ============ */
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(15,42,34,.48);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:70;
}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;
  right:0;
  height:100%;
  width:84vw;
  max-width:360px;
  background:var(--surface);
  z-index:80;
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  padding:22px 20px 32px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.drawer-close{width:44px;height:44px;border-radius:12px;font-size:22px;line-height:1;color:var(--ink);}
.drawer-nav{margin-top:12px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:52px;
  font-size:16px;
  font-weight:500;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--ink);}
.drawer-nav a.is-active{color:var(--ink);font-weight:700;}
.drawer-cta{margin-top:22px;}
.drawer-contact{margin-top:20px;font-size:14px;color:var(--muted);line-height:2;}
.drawer-contact a{color:var(--ink);}
body.no-scroll{overflow:hidden;}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:50px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .22s ease,background-color .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--brand);color:var(--ink);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 14px 28px -16px rgba(15,42,34,.55);}
.btn-primary:active{transform:translateY(0);background:var(--brand);}
.btn-outline{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-outline:hover{background:rgba(15,42,34,.08);transform:translateY(-1px);}
.btn-block{width:100%;}

/* ============ Tags ============ */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.01em;
}
.tag-accent{background:rgba(228,87,46,.12);color:var(--accent);}
.tag-line{border:1px solid var(--ink);color:var(--ink);}
.tag-soft{background:rgba(200,242,48,.35);color:#33470B;}

/* ============ Breadcrumb ============ */
.breadcrumb-bar{
  background:#F2F0EA;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:nowrap;
  gap:8px;
  min-height:52px;
  font-size:14px;
  color:var(--muted);
  overflow:hidden;
}
.breadcrumb a{color:var(--muted);border-bottom:1px solid transparent;}
.breadcrumb a:hover{color:var(--ink);border-bottom-color:var(--brand);}
.breadcrumb .sep{color:#B9C2BC;}
.breadcrumb .current{
  color:var(--muted);
  max-width:52vw;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ============ Article head ============ */
.article-head{background:var(--surface);border-bottom:1px solid var(--line);padding:36px 0 30px;}
.article-head-inner{max-width:820px;}
.article-title{
  font-size:clamp(26px,3.4vw,42px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  margin:16px 0 18px;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  font-size:14px;
  color:var(--muted);
}
.meta-row time{color:var(--accent);font-weight:600;}
.meta-dot{width:3px;height:3px;border-radius:50%;background:#C3CCC6;}
.head-divider{height:1px;background:var(--line);margin-top:22px;}

/* ============ Layout ============ */
.article-main{padding:40px 0 72px;}
.article-layout{display:grid;grid-template-columns:1fr;gap:44px;}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 300px;gap:56px;justify-content:space-between;}
  .article-main{padding:56px 0 96px;}
}

/* ============ Article body ============ */
.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:28px 24px 34px;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  overflow-wrap:break-word;
}
@media (min-width:768px){
  .article-body{padding:40px 44px 46px;}
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  color:var(--ink);
  margin:2em 0 .8em;
  padding-left:16px;
  letter-spacing:-.01em;
}
@media (min-width:768px){
  .article-body h2{font-size:27px;}
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.18em;
  bottom:.18em;
  width:4px;
  border-radius:2px;
  background:var(--brand);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink);margin:1.6em 0 .6em;}
.article-body ul,.article-body ol{padding-left:1.45em;margin:0 0 1.2em;}
.article-body ul li{list-style:disc;}
.article-body ol li{list-style:decimal;}
.article-body li{margin:.35em 0;line-height:1.9;}
.article-body li::marker{color:var(--accent);}
.article-body blockquote{
  margin:1.5em 0;
  padding:16px 22px;
  background:#FBF7EE;
  border-left:3px solid var(--accent);
  border-radius:0 12px 12px 0;
  color:#3C4E48;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  height:auto;
  border-radius:var(--radius-img);
  margin:1.5em 0;
  background:var(--bg);
}
.article-body a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--brand);text-underline-offset:3px;}
.article-body a:hover{text-decoration-color:var(--accent);}
.article-body strong{color:var(--ink);}
.article-body table{
  display:block;
  width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:15px;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:#F2F6E8;color:var(--ink);font-weight:600;}
.article-body pre{
  background:var(--ink);
  color:#E9F3E4;
  padding:16px 18px;
  border-radius:var(--radius-img);
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:1.5em 0;
}
.article-body code{
  background:#F1F4EA;
  color:#2C4A3F;
  padding:2px 6px;
  border-radius:6px;
  font-size:.92em;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body figure{margin:1.5em 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}

/* ============ Sidebar ============ */
.article-side{display:none;}
@media (min-width:1024px){
  .article-side{
    display:block;
    position:sticky;
    top:96px;
    align-self:start;
  }
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:22px;
  margin-bottom:20px;
}
.side-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--muted);
  text-transform:uppercase;
  margin-bottom:14px;
}
.side-title::before{content:"";width:16px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent));}
.toc-list{font-size:15px;}
.toc-list a{
  display:block;
  padding:8px 0 8px 12px;
  border-left:2px solid var(--line);
  color:var(--text);
  line-height:1.6;
  transition:border-color .22s ease,color .22s ease,padding-left .22s ease;
}
.toc-list a:hover{border-left-color:var(--brand);color:var(--ink);padding-left:16px;}
.toc-empty{font-size:14px;color:var(--muted);}
.hot-list li{border-bottom:1px solid var(--line);}
.hot-list li:last-child{border-bottom:none;}
.hot-list a{
  display:flex;
  gap:12px;
  padding:12px 0;
  font-size:15px;
  line-height:1.6;
  color:var(--text);
  border-left:3px solid transparent;
  padding-left:8px;
  transition:border-color .22s ease,color .22s ease;
}
.hot-list a:hover{border-left-color:var(--brand);color:var(--ink);}
.hot-num{
  flex:0 0 auto;
  font-size:15px;
  font-weight:800;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.side-cta{
  background:var(--ink);
  color:#EAF3E6;
  border:none;
}
.side-cta .side-title{color:#A9BFB6;}
.side-cta p{font-size:14.5px;line-height:1.85;color:#C6D6CF;margin-bottom:16px;}
.side-cta .btn{height:44px;padding:0 20px;font-size:14px;}

/* ============ Article foot ============ */
.article-foot{padding:0 0 80px;}
.foot-block{margin-bottom:44px;}
.foot-label{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--muted);
  text-transform:uppercase;
  margin-bottom:16px;
}
.foot-label::before{content:"";width:20px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent));}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(228,87,46,.10);
  color:var(--accent);
  font-size:13.5px;
  font-weight:600;
  transition:background-color .22s ease,color .22s ease;
}
.tag-pill:hover{background:var(--accent);color:#fff;}

.prevnext{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:768px){.prevnext{grid-template-columns:1fr 1fr;}}
.prevnext a{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:20px 22px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.prevnext a:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-dark);}
.prevnext .pn-label{font-size:13px;color:var(--muted);letter-spacing:.04em;margin-bottom:6px;}
.prevnext .pn-title{font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;}

.related-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.related-grid{grid-template-columns:repeat(3,1fr);}}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D8DECF;}
.card-media{overflow:hidden;background:var(--bg);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-media.ratio-43{aspect-ratio:4/3;}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);}
.card-title a:hover{color:var(--accent);}
.card-time{font-size:13px;color:var(--muted);margin-top:auto;}

.back-link{display:flex;justify-content:flex-start;margin-top:8px;}

/* ============ Empty state ============ */
.empty-state{
  border:1.5px dashed #C9D2CB;
  border-radius:var(--radius-card);
  background:#FBFBF8;
  padding:38px 24px;
  text-align:center;
  max-height:240px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
}
.empty-state svg{color:#9AA9A1;}
.empty-state p{font-size:15px;color:var(--muted);}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink);
  color:#DDE8E2;
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
  padding-bottom:44px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:18px;
  font-weight:800;
  color:#F4FAF0;
  margin-bottom:14px;
}
.footer-brand .brand-mark{background:var(--brand);color:var(--ink);}
.footer-desc{font-size:14.5px;line-height:1.9;color:#A9BFB6;max-width:340px;margin-bottom:18px;}
.qr-box{
  width:96px;
  height:96px;
  border-radius:12px;
  border:1px dashed rgba(200,242,48,.5);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12.5px;
  line-height:1.6;
  color:#9FB5AC;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  color:#F4FAF0;
  margin-bottom:14px;
}
.footer-col a{
  display:block;
  font-size:15px;
  line-height:2.1;
  color:#BCCCC5;
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 20px;
  justify-content:space-between;
  font-size:13.5px;
  color:#93A8A0;
}
.footer-bottom a{color:#C8F230;}
.footer-bottom a:hover{color:#fff;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#0F2A22;
  --brand:#C8F230;
  --brand-dark:#A8CE1F;
  --accent:#E4572E;
  --text:#1B2B26;
  --muted:#5E756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --radius-card:18px;
  --radius-img:12px;
  --shadow-rest:0 1px 2px rgba(15,42,34,.06);
  --shadow-hover:0 20px 40px -22px rgba(15,42,34,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",Segoe UI,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;}

.container-x{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container-x{padding:0 32px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(15,42,34,.55);}
.grad-line{height:3px;background:linear-gradient(90deg,var(--brand),var(--accent));}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px;transition:height .25s ease;}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;color:var(--ink);
  text-decoration:none;letter-spacing:-.01em;white-space:nowrap;
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--brand);
  border-radius:8px;padding:2px 8px;font-size:15px;font-weight:800;letter-spacing:0;
}
.main-nav{display:none;gap:4px;margin-left:26px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.nav-link{
  position:relative;padding:9px 13px;border-radius:9px;
  color:var(--muted);font-size:15.5px;font-weight:500;
  text-decoration:none;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(200,242,48,.18);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
@media (min-width:1024px){.nav-actions{margin-left:0;}}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:999px;color:var(--ink);
  cursor:pointer;transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:var(--ink);background:var(--bg);transform:translateY(-1px);}
.burger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;border-radius:2px;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
@media (min-width:1024px){.burger{display:none;}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:999px;
  font-size:15.5px;font-weight:600;text-decoration:none;cursor:pointer;
  border:1.5px solid transparent;white-space:nowrap;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--brand);color:var(--ink);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 14px 26px -16px rgba(15,42,34,.55);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:rgba(15,42,34,.10);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px;}
.btn-block{width:100%;}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--brand);transform:translateY(-1px);}

/* ---------- Mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,34,.48);z-index:80;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:390px;background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
body.drawer-open{overflow:hidden;}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  font-size:20px;color:var(--ink);cursor:pointer;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;margin:8px 0 20px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 4px;text-decoration:none;font-size:16px;font-weight:500;
  color:var(--text);border-bottom:1px solid var(--line);
}
.drawer-link span{color:var(--muted);}
.drawer-link.is-active{color:var(--ink);font-weight:700;}
.drawer-link.is-active span{color:var(--accent);}
.drawer-foot{margin-top:18px;font-size:14px;color:var(--muted);line-height:1.9;}

/* ---------- Page hero ---------- */
.page-hero{background:var(--bg);border-bottom:1px solid var(--line);padding:36px 0 48px;}
@media (min-width:1024px){.page-hero{padding:48px 0 64px;}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:22px;}
.breadcrumb a{text-decoration:none;color:var(--muted);border-bottom:1px solid transparent;}
.breadcrumb a:hover{color:var(--ink);border-bottom-color:var(--brand);}
.breadcrumb .sep{color:#B9B4A8;}
.breadcrumb .current{color:var(--muted);}
.page-hero-inner{display:grid;gap:28px;align-items:center;}
@media (min-width:900px){.page-hero-inner{grid-template-columns:1.25fr .75fr;gap:52px;}}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--accent);text-transform:uppercase;margin-bottom:14px;
}
.page-hero h1{
  font-size:clamp(30px,4vw,44px);line-height:1.16;font-weight:800;letter-spacing:-.02em;
}
.page-hero-sub{margin-top:16px;font-size:17px;color:var(--muted);max-width:520px;line-height:1.8;}
.hero-meta-line{display:inline-flex;align-items:center;gap:9px;margin-top:22px;font-size:14.5px;color:var(--ink);font-weight:600;}
.dot-live{width:9px;height:9px;border-radius:999px;background:var(--brand);box-shadow:0 0 0 4px rgba(200,242,48,.28);}
.page-hero-media{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  background:var(--ink);box-shadow:var(--shadow-rest);
}
.page-hero-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.media-overlay{position:absolute;inset:0;background:linear-gradient(160deg,rgba(15,42,34,.72),rgba(15,42,34,.38));}
.media-badge{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(255,255,255,.94);border-radius:14px;padding:12px 16px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.media-badge strong{display:block;font-size:15px;color:var(--ink);font-weight:700;line-height:1.4;}
.media-badge span{font-size:13px;color:var(--muted);}
.media-badge .mini-tag{
  font-size:12.5px;font-weight:700;color:var(--ink);
  background:rgba(200,242,48,.55);border-radius:999px;padding:4px 12px;white-space:nowrap;
}

/* ---------- Sections ---------- */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-label{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--accent);margin-bottom:14px;
}
.section-head{display:grid;gap:18px;margin-bottom:36px;}
@media (min-width:1024px){.section-head{grid-template-columns:1.15fr .85fr;align-items:end;gap:56px;margin-bottom:48px;}}
.section-head h2{position:relative;padding-left:18px;font-size:clamp(24px,3vw,32px);line-height:1.25;font-weight:700;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.section-desc{color:var(--muted);font-size:16px;line-height:1.85;}

/* ---------- Intro ---------- */
.intro-grid{display:grid;gap:32px;}
@media (min-width:1024px){.intro-grid{grid-template-columns:1.45fr .85fr;gap:72px;align-items:start;}}
.intro-copy h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35;margin-bottom:18px;}
.intro-copy p{color:var(--text);font-size:16.5px;line-height:1.9;margin-bottom:18px;max-width:720px;}
.intro-copy p:last-child{margin-bottom:0;}
.intro-points{
  list-style:none;margin:0;padding:24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-rest);display:grid;gap:18px;align-content:start;
}
.intro-points li{position:relative;padding-left:24px;font-size:15.5px;line-height:1.75;color:var(--text);}
.intro-points li::before{
  content:"";position:absolute;left:0;top:.6em;width:10px;height:10px;
  border-radius:3px;background:var(--brand);
}

/* ---------- Feature grid ---------- */
.feature-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:700px){.feature-grid{grid-template-columns:1fr 1fr;gap:24px;}}
.feature-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.thumb{background:var(--bg);overflow:hidden;aspect-ratio:4/3;}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease;}
.feature-card:hover .thumb img{transform:scale(1.03);}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:20px;line-height:1.4;font-weight:600;}
.card-body p{color:var(--muted);font-size:15.5px;line-height:1.75;}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;}
.tag-cat{background:rgba(228,87,46,.12);color:var(--accent);}
.tag-state{border:1px solid var(--ink);color:var(--ink);}
.feature-card-wide{grid-column:1 / -1;}
@media (min-width:900px){
  .feature-card-wide{display:grid;grid-template-columns:1.1fr 1fr;align-items:stretch;}
  .feature-card-wide .thumb{aspect-ratio:auto;min-height:330px;height:100%;}
  .feature-card-wide .card-body{padding:34px 36px;justify-content:center;gap:14px;}
  .feature-card-wide .card-body h3{font-size:25px;line-height:1.32;}
}
.card-badges{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-list{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-rest);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;min-height:56px;padding:16px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;font:inherit;font-size:16.5px;font-weight:600;
  color:var(--ink);text-align:left;cursor:pointer;transition:background .2s ease;
}
.faq-q:hover{background:rgba(200,242,48,.12);}
.faq-q .chev{flex:0 0 auto;color:var(--muted);transition:transform .28s ease;}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 22px 22px;color:var(--muted);font-size:15.5px;line-height:1.8;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);color:#F2F0E8;padding:56px 0;}
@media (min-width:1024px){.cta-band{padding:88px 0;}}
.cta-grid{display:grid;gap:28px;align-items:center;}
@media (min-width:1024px){.cta-grid{grid-template-columns:1.5fr 1fr;gap:64px;}}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);line-height:1.28;}
.cta-band p{margin-top:14px;color:rgba(242,240,232,.75);font-size:16.5px;line-height:1.85;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media (max-width:599px){.cta-actions .btn{width:100%;}}
.cta-note{margin-top:22px;font-size:13.5px;color:rgba(242,240,232,.55);}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#EFEDE6;padding:56px 0 26px;}
.footer-grid{display:grid;gap:34px;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px;}}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--brand);color:var(--ink);}
.footer-desc{color:rgba(239,237,230,.72);font-size:15px;line-height:1.8;margin:0 0 18px;max-width:330px;}
.qr-box{
  width:96px;height:96px;border-radius:12px;border:1px dashed rgba(239,237,230,.35);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:13px;line-height:1.45;color:rgba(239,237,230,.6);
}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:#fff;margin-bottom:12px;font-weight:700;}
.footer-col a{display:block;color:rgba(239,237,230,.78);text-decoration:none;font-size:15px;line-height:2.1;transition:color .2s ease;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid rgba(239,237,230,.16);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:14px;color:rgba(239,237,230,.6);
}
.footer-bottom a{color:rgba(239,237,230,.72);text-decoration:none;}
.footer-bottom a:hover{color:var(--brand);}

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

/* roulang page: category2 */
:root{
  --ink:#0F2A22;
  --brand:#C8F230;
  --brand-dark:#A8CE1F;
  --accent:#E4572E;
  --text:#1B2B26;
  --muted:#5E756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --radius:18px;
  --radius-img:12px;
  --radius-field:12px;
  --shadow-sm:0 1px 2px rgba(15,42,34,.06);
  --shadow-hover:0 20px 40px -22px rgba(15,42,34,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container-x{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(15,42,34,.45);}
.grad-line{height:3px;background:linear-gradient(90deg,var(--brand),var(--accent));}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:72px;transition:height .28s var(--ease);
}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--brand);
  font-size:14px;font-weight:800;letter-spacing:.04em;
  padding:3px 8px;border-radius:8px;line-height:1.2;
}
.main-nav{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;font-size:15px;color:var(--text);border-radius:999px;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-link:hover{background:rgba(200,242,48,.2);color:var(--ink);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;
  transition:border-color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.icon-btn:hover{border-color:var(--ink);background:rgba(15,42,34,.05);transform:translateY(-1px);}
.burger{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
}
.burger span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
@media (min-width:1024px){.burger{display:none;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;white-space:nowrap;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-primary{background:var(--brand);color:var(--ink);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 16px 28px -16px rgba(15,42,34,.5);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:rgba(15,42,34,.08);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--brand);transform:translateY(-1px);}

/* ---------- tags & breadcrumb ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(228,87,46,.12);color:var(--accent);border:none;
}
.tag-line{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--muted);
  text-transform:uppercase;font-weight:600;
}
.breadcrumb-bar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:12px 0;}
.breadcrumb a{color:var(--text);}
.breadcrumb a:hover{text-decoration:underline;text-decoration-color:var(--brand);text-decoration-thickness:2px;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--muted);}

/* ---------- page hero ---------- */
.page-hero{padding:44px 0 56px;background:var(--bg);}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){
  .page-hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1.15fr .85fr;gap:56px;}
}
.h1-block{font-size:clamp(30px,4.2vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
.h1-block .h1-brand{display:block;margin-top:12px;font-size:15px;font-weight:600;letter-spacing:.02em;color:var(--muted);}
.hero-text{margin-top:20px;font-size:17px;line-height:1.85;color:var(--text);max-width:640px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-media{
  position:relative;overflow:hidden;border-radius:var(--radius);
  aspect-ratio:16/10;background:var(--line);box-shadow:var(--shadow-sm);
}
@media (min-width:1024px){.hero-media{aspect-ratio:3/4;}}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(rgba(15,42,34,.72),rgba(15,42,34,.45));
}
.hero-media figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  color:#fff;font-size:14px;line-height:1.6;
}
.hero-media figcaption strong{color:var(--brand);font-weight:700;}

/* ---------- section base ---------- */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.section-title{
  position:relative;padding-left:16px;
  font-size:clamp(24px,3vw,32px);line-height:1.25;font-weight:700;color:var(--ink);letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.section-sub{margin-top:12px;font-size:16px;color:var(--muted);max-width:720px;}
.lead{font-size:16.5px;line-height:1.9;color:var(--text);}
.lead + .lead{margin-top:16px;}
.text-link{color:var(--ink);font-weight:600;border-bottom:2px solid var(--brand);transition:color .22s var(--ease);}
.text-link:hover{color:var(--accent);}

/* ---------- lead section ---------- */
.lead-wrap{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.lead-wrap{grid-template-columns:1.35fr .65fr;gap:56px;}}
.point-list{margin-top:22px;display:grid;gap:12px;}
.point-list li{position:relative;padding-left:22px;font-size:15.5px;line-height:1.8;color:var(--text);}
.point-list li::before{
  content:"";position:absolute;left:0;top:12px;width:9px;height:9px;border-radius:2px;background:var(--brand);
}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-sm);height:100%;
}
.info-card h3{font-size:19px;font-weight:600;color:var(--ink);margin-bottom:12px;}
.info-card p{font-size:15px;line-height:1.85;color:var(--muted);}
.info-card .mini-list{margin-top:16px;display:grid;gap:10px;}
.info-card .mini-list li{display:flex;justify-content:space-between;gap:12px;font-size:14.5px;color:var(--text);border-top:1px solid var(--line);padding-top:10px;}
.info-card .mini-list strong{color:var(--accent);font-weight:700;}

/* ---------- stats strip ---------- */
.stats-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);}
@media (min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr);}}
.stat-cell{background:var(--surface);padding:26px 22px;}
.stat-num{font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.1;}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.6;}

/* ---------- step timeline ---------- */
.step-list{display:grid;gap:18px;}
.step-item{
  position:relative;display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px 22px 20px;overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.step-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background .26s var(--ease);
}
.step-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(15,42,34,.14);}
.step-item:hover::before{background:var(--brand);}
.step-num{
  font-size:34px;font-weight:800;line-height:1;letter-spacing:-.03em;color:var(--accent);
  min-width:54px;
}
.step-body h3{font-size:20px;font-weight:600;color:var(--ink);line-height:1.4;}
.step-body p{margin-top:10px;font-size:15.5px;line-height:1.85;color:var(--text);}
.step-body .step-note{margin-top:12px;font-size:14px;color:var(--muted);}
.step-body .step-note a{color:var(--ink);font-weight:600;border-bottom:2px solid var(--brand);}

/* ---------- FAQ ---------- */
.faq-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:14px 22px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:background .22s var(--ease);
}
.faq-q:hover{background:rgba(200,242,48,.14);}
.faq-arrow{
  flex:0 0 auto;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid var(--line);color:var(--ink);
  transition:transform .28s var(--ease),background .28s var(--ease),border-color .28s var(--ease);
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);background:var(--brand);border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 22px 20px;font-size:15.5px;line-height:1.8;color:var(--muted);}
.faq-item.is-open .faq-a{max-height:400px;}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:#F7F6F2;padding:56px 0;}
@media (min-width:1024px){.cta-band{padding:96px 0;}}
.cta-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;}
@media (min-width:1024px){.cta-grid{grid-template-columns:1.2fr .8fr;gap:56px;}}
.cta-band h2{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;color:#fff;letter-spacing:-.01em;}
.cta-band p{margin-top:14px;font-size:16px;line-height:1.85;color:rgba(247,246,242,.78);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:639px){.cta-actions .btn{width:100%;}}
.cta-note{margin-top:18px;font-size:13.5px;color:rgba(247,246,242,.6);}
.cta-band .btn-outline{border-color:rgba(247,246,242,.7);color:#F7F6F2;}
.cta-band .btn-outline:hover{background:rgba(247,246,242,.12);}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,34,.5);z-index:80;
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:90;
  background:#fff;transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer nav{margin-top:12px;display:grid;}
.drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);
}
.drawer nav a.is-active{color:var(--ink);font-weight:700;}
.drawer-foot{margin-top:22px;display:grid;gap:12px;}
.drawer-foot .btn{width:100%;}
.drawer-foot .small{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,246,242,.82);padding:56px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(247,246,242,.7);max-width:320px;}
.qr-box{
  margin-top:18px;width:96px;height:96px;border-radius:var(--radius-img);
  border:1px dashed rgba(247,246,242,.35);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;line-height:1.5;color:rgba(247,246,242,.65);
}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:#fff;font-weight:600;margin-bottom:14px;}
.footer-col a{display:block;font-size:15px;line-height:2.1;color:rgba(247,246,242,.78);transition:color .22s var(--ease);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:40px;padding-top:18px;border-top:1px solid rgba(247,246,242,.16);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13.5px;color:rgba(247,246,242,.6);
}
.footer-bottom a{color:rgba(247,246,242,.75);}
.footer-bottom a:hover{color:var(--brand);}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --ink:#0F2A22;
  --brand:#C8F230;
  --brand-dark:#A8CE1F;
  --accent:#E4572E;
  --text:#1B2B26;
  --muted:#5E756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --radius-card:18px;
  --radius-img:12px;
  --radius-btn:999px;
  --shadow-1:0 1px 2px rgba(15,42,34,.06);
  --shadow-2:0 20px 40px -22px rgba(15,42,34,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;background:none;border:0;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container-x{padding:0 32px;}}

/* ---------- 顶部渐变条 ---------- */
.grad-line{height:3px;background:linear-gradient(90deg,var(--brand),var(--accent));}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -20px rgba(15,42,34,.45);}
.nav-wrap{
  display:flex;align-items:center;gap:20px;
  height:72px;transition:height .25s ease;
}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;
  background:var(--ink);color:var(--brand);
  font-size:12.5px;font-weight:800;letter-spacing:.02em;flex:none;
}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 15px;border-radius:var(--radius-btn);
  font-size:15.5px;color:var(--text);
  transition:background .22s ease,color .22s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(200,242,48,.20);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  transition:border-color .22s ease,background .22s ease,transform .22s ease;
}
.icon-btn:hover{border-color:var(--ink);background:rgba(200,242,48,.16);transform:translateY(-1px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;letter-spacing:.01em;
  border:1.5px solid transparent;white-space:nowrap;
  transition:background .24s ease,color .24s ease,transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.btn-primary{background:var(--brand);color:var(--ink);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:rgba(15,42,34,.08);transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:rgba(247,246,242,.45);color:#F7F6F2;}
.btn-ghost:hover{background:rgba(247,246,242,.12);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px;}

/* ---------- 汉堡与抽屉 ---------- */
.burger{
  display:none;position:relative;width:44px;height:44px;
  border:1px solid var(--line);border-radius:12px;background:#fff;
}
.burger span,.burger::before,.burger::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;border-radius:2px;
  background:var(--ink);transition:transform .25s ease,opacity .2s ease;
}
.burger::before{top:15px;}
.burger span{top:21px;}
.burger::after{top:27px;}
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(15,42,34,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;z-index:80;height:100%;
  width:84vw;max-width:372px;background:#fff;
  padding:22px 20px 32px;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .28s ease;
  overflow-y:auto;border-left:1px solid var(--line);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;background:#fff;
}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--text);
}
.drawer-link.is-active{color:var(--ink);font-weight:600;}
.drawer-link span.arrow{color:var(--muted);}
.drawer-cta{margin-top:22px;}
.drawer-cta .btn{width:100%;}
.drawer-contact{margin-top:18px;font-size:14.5px;color:var(--muted);line-height:2;}
.drawer-contact a{color:var(--ink);}

/* ---------- Page Hero ---------- */
.page-hero{background:var(--bg);padding:52px 0 60px;border-bottom:1px solid var(--line);}
.page-hero-inner{
  display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.08em;color:var(--muted);text-transform:uppercase;
}
.eyebrow::before{
  content:"";width:24px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.hero-title{
  margin:18px 0 16px;
  font-size:clamp(30px,4.2vw,50px);line-height:1.18;font-weight:800;
  letter-spacing:-.02em;color:var(--ink);
}
.hero-title-sub{
  display:block;margin-top:10px;
  font-size:clamp(15px,1.6vw,18px);font-weight:600;letter-spacing:.02em;
  color:var(--muted);
}
.hero-lead{font-size:17px;color:var(--muted);max-width:560px;}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;}
.page-hero-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  aspect-ratio:4/3;background:var(--line);
}
.page-hero-media img{width:100%;height:100%;object-fit:cover;}
.page-hero-media .media-overlay{
  position:absolute;inset:0;
  background:linear-gradient(155deg,rgba(15,42,34,.72),rgba(15,42,34,.36));
}
.media-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--radius-btn);
  background:rgba(247,246,242,.92);color:var(--ink);
  font-size:13.5px;font-weight:600;
}
.media-badge i{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-head{max-width:760px;margin-bottom:44px;}
.section-title{
  font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;
  color:var(--ink);letter-spacing:-.01em;position:relative;padding-left:16px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.section-sub{margin-top:14px;color:var(--muted);font-size:16.5px;}

/* ---------- 导语区 ---------- */
.lead-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:44px;align-items:start;}
.lead-copy p + p{margin-top:18px;}
.lead-copy p{font-size:17px;line-height:1.9;color:var(--text);}
.lead-aside{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.lead-aside h3{font-size:19px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.lead-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);
  font-size:15.5px;line-height:1.8;color:var(--text);
}
.lead-list li:last-child{border-bottom:0;padding-bottom:2px;}
.lead-list li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:10px;border-radius:2px;
  background:var(--brand);
}
.lead-list strong{color:var(--ink);}

/* ---------- 交错图文 ---------- */
.zig-list{border-top:1px solid var(--line);}
.zig-row{
  display:grid;gap:40px;align-items:center;
  padding:44px 0;border-bottom:1px solid var(--line);
}
.zig-row.media-wide{grid-template-columns:7fr 5fr;}
.zig-row.text-wide{grid-template-columns:5fr 7fr;}
.zig-row.text-wide .zig-media{order:2;}
.zig-media{
  border-radius:var(--radius-img);overflow:hidden;aspect-ratio:4/3;
  background:var(--bg);border:1px solid var(--line);
}
.zig-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .32s ease;
}
.zig-row:hover .zig-media img{transform:scale(1.03);}
.zig-index{
  display:block;font-size:34px;font-weight:800;letter-spacing:-.02em;
  color:var(--accent);line-height:1;margin-bottom:14px;
}
.zig-body h3{font-size:21px;font-weight:600;line-height:1.45;color:var(--ink);margin-bottom:12px;}
.zig-body p{color:var(--text);font-size:16.5px;line-height:1.9;}
.zig-body p + p{margin-top:12px;}
.zig-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;
  font-size:14px;color:var(--muted);
}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-btn);
  background:rgba(228,87,46,.12);color:var(--accent);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.tag-line{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-btn);
  border:1px solid var(--ink);color:var(--ink);font-size:13px;font-weight:600;
}
.zig-meta time{color:var(--muted);}

/* ---------- FAQ ---------- */
.faq{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 24px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);
  transition:background .22s ease;
}
.faq-q:hover{background:rgba(200,242,48,.14);}
.faq-q svg{flex:none;transition:transform .28s ease;color:var(--muted);}
.faq-item.is-open .faq-q svg{transform:rotate(180deg);color:var(--ink);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-item.is-open .faq-a{max-height:520px;}
.faq-a p{
  padding:0 24px 22px;color:var(--muted);
  font-size:15.5px;line-height:1.8;
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--ink);color:#F7F6F2;
  padding:56px 0;
}
@media (min-width:1024px){.cta-band{padding:80px 0;}}
.cta-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;}
.cta-band h2{
  font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;
  letter-spacing:-.01em;color:#fff;
}
.cta-band p{margin-top:14px;color:rgba(247,246,242,.78);font-size:16.5px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-note{margin-top:18px;font-size:13.5px;color:rgba(247,246,242,.6);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#EDEAE2;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:9px;
  font-size:18px;font-weight:800;color:#fff;letter-spacing:-.01em;
}
.footer-brand .brand-mark{background:var(--brand);color:var(--ink);}
.footer-desc{
  margin:16px 0 18px;font-size:15px;line-height:1.9;
  color:rgba(237,234,226,.72);max-width:330px;
}
.qr-box{
  width:96px;height:96px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.28);background:rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;line-height:1.6;color:rgba(237,234,226,.82);
}
.footer-col h4{
  font-size:14px;letter-spacing:.06em;color:#fff;margin-bottom:14px;font-weight:600;
}
.footer-col a{
  display:block;font-size:15px;line-height:2.1;
  color:rgba(237,234,226,.78);
  transition:color .22s ease;
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(237,234,226,.6);
}
.footer-bottom a{color:rgba(237,234,226,.82);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav{display:none;}
  .burger{display:inline-flex;}
  .page-hero-inner{grid-template-columns:1fr;}
  .page-hero-media{aspect-ratio:16/9;}
  .lead-grid{grid-template-columns:1fr;gap:32px;}
  .zig-row,.zig-row.media-wide,.zig-row.text-wide{grid-template-columns:1fr;gap:24px;}
  .zig-row.text-wide .zig-media{order:0;}
  .cta-grid{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:520px){
  body{font-size:16px;}
  .page-hero{padding:36px 0 44px;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-q{font-size:15.5px;padding:16px 18px;}
  .faq-a p{padding:0 18px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}