/* roulang page: index */
:root{
  --ink:#101216;
  --ink-2:#1B1F27;
  --lime:#C6F24E;
  --orange:#FF6A3D;
  --bg:#F6F5F1;
  --bg-alt:#EDEBE4;
  --line:#E3E1D9;
  --line-dark:rgba(255,255,255,.08);
  --text:#1A1D22;
  --text-2:#5A6068;
  --text-invert:#D7DAE0;
  --r-card:10px;
  --r-btn:8px;
  --shadow-1:0 1px 2px rgba(16,18,22,.04),0 12px 32px rgba(16,18,22,.06);
  --shadow-2:0 2px 4px rgba(16,18,22,.05),0 20px 44px rgba(16,18,22,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.88;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}
.section{padding:104px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.section-kicker{font-size:.8125rem;letter-spacing:.08em;color:var(--text-2);margin-bottom:10px}
.section-head h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.section-head p.lead{color:var(--text-2);max-width:620px;margin-top:12px}
.link-arrow{position:relative;display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--text);white-space:nowrap}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--lime);transition:width .25s var(--ease)}
.link-arrow:hover::after{width:100%}
.link-arrow:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-weight:600;font-size:15.5px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease)}
.btn--primary{background:var(--lime);color:var(--ink)}
.btn--primary:hover{box-shadow:0 8px 22px rgba(198,242,78,.36);transform:translateY(-1px)}
.btn--ghost{border:1px solid rgba(255,255,255,.4);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.1);border-color:var(--lime);color:var(--lime)}
.btn--outline{border:1px solid var(--ink);color:var(--ink)}
.btn--outline:hover{background:var(--ink);color:#fff}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:.8125rem;letter-spacing:.02em;border:1px solid rgba(198,242,78,.7);background:rgba(198,242,78,.16);color:#3f5206;white-space:nowrap}
.badge--dark{border-color:rgba(198,242,78,.45);background:rgba(198,242,78,.12);color:var(--lime)}

/* ============ HEADER ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(246,245,241,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:background .25s var(--ease),box-shadow .25s var(--ease)}
body.is-scrolled .site-header{background:#fff;box-shadow:0 8px 28px rgba(16,18,22,.07)}
.header-inner{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:32px;padding:16px 0;transition:padding .25s var(--ease)}
body.is-scrolled .header-inner{padding:10px 0}
.brand{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.brand-badge{display:inline-flex;align-items:center;height:34px;padding:0 12px;border-radius:8px;background:var(--ink);color:var(--lime);font-weight:700;font-size:15px;letter-spacing:.01em}
.brand-text{font-weight:600;font-size:15px;color:var(--text);letter-spacing:.02em}
.nav-search{position:relative;width:100%;max-width:480px;justify-self:center;display:flex;align-items:center;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 4px 4px 16px;transition:border-color .25s var(--ease),box-shadow .25s var(--ease)}
.nav-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.32)}
.nav-search__icon{display:inline-flex;width:20px;height:20px;color:var(--text-2);flex:0 0 auto}
.nav-search__icon svg{width:20px;height:20px}
.nav-search input{flex:1 1 auto;border:0;outline:0;background:transparent;height:40px;padding:0 12px;font-size:15px;color:var(--text);min-width:0}
.nav-search input::placeholder{color:#9BA1A8}
.nav-search button{flex:0 0 auto;height:40px;padding:0 20px;border-radius:999px;background:var(--ink);color:#fff;font-size:14px;font-weight:600;transition:background .25s var(--ease),color .25s var(--ease)}
.nav-search button:hover{background:var(--lime);color:var(--ink)}
.main-nav{display:flex;align-items:center;gap:24px}
.main-nav a{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;white-space:nowrap;transition:color .25s var(--ease)}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--ink);font-weight:600}
.nav-toggle{display:none;width:42px;height:42px;border-radius:8px;border:1px solid var(--line);background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;min-height:82vh;display:flex;align-items:center;padding:120px 0 76px}
.hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5}
.hero::after{content:"";position:absolute;inset:0;background:rgba(16,18,22,.78)}
.hero__inner{position:relative;z-index:2;max-width:880px}
.hero__eyebrow{font-size:.8125rem;letter-spacing:.14em;color:var(--lime);margin-bottom:22px}
.hero__title{font-size:clamp(2.4rem,5.6vw,4.2rem);font-weight:700;line-height:1.14;letter-spacing:-.02em;color:#fff}
.hero__title::after{content:"";display:block;width:76px;height:4px;background:var(--lime);border-radius:2px;margin-top:28px}
.hero__sub{margin-top:24px;font-size:clamp(1rem,1.4vw,1.15rem);color:var(--text-invert);max-width:560px}
.hero__actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap;margin-top:38px}
.hero__actions .link-arrow{color:#fff}
.hero__actions .link-arrow:hover{color:var(--lime)}
.hero__stats{display:flex;flex-wrap:wrap;gap:0;margin-top:56px;border-top:1px solid var(--line-dark);padding-top:26px}
.hero__stats li{padding:0 34px;border-left:1px solid var(--line-dark)}
.hero__stats li:first-child{padding-left:0;border-left:0}
.hero__stats strong{display:block;font-size:1.55rem;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.3}
.hero__stats span{font-size:.8125rem;color:var(--text-invert);letter-spacing:.04em}

/* ============ BENEFITS ============ */
.benefit-grid{display:grid;grid-template-columns:6fr 3fr 3fr;gap:24px;align-items:stretch}
.benefit-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:32px 28px;box-shadow:var(--shadow-1);transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease)}
.benefit-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(198,242,78,.6)}
.benefit-card__no{display:inline-block;font-size:.8125rem;letter-spacing:.1em;color:var(--text-2);margin-bottom:18px;font-variant-numeric:tabular-nums}
.benefit-card__icon{width:24px;height:24px;color:var(--ink);margin-bottom:16px}
.benefit-card h3{font-size:1.25rem;font-weight:600;line-height:1.45;margin-bottom:12px}
.benefit-card p{color:var(--text-2);font-size:15.5px}
.benefit-card--lead{display:flex;flex-direction:column}
.benefit-card--lead .benefit-card__rule{width:64px;height:2px;background:var(--lime);margin:22px 0 20px}
.benefit-card--lead .link-arrow{margin-top:auto;padding-top:24px}

/* ============ SCENE ============ */
.scene{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;margin-bottom:88px}
.scene:last-child{margin-bottom:0}
.scene--flip .scene__media{order:2}
.scene__media{border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/10;background:var(--bg-alt);box-shadow:var(--shadow-1)}
.scene__media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.scene:hover .scene__media img{transform:scale(1.03)}
.scene__index{font-size:.8125rem;letter-spacing:.1em;color:var(--text-2);margin-bottom:14px}
.scene__body h3{font-size:clamp(1.35rem,2.2vw,1.75rem);font-weight:700;line-height:1.35;margin-bottom:16px}
.scene__body p{color:var(--text-2);margin-bottom:18px}
.scene__points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}

/* ============ NEWS LIST ============ */
.news-list{border-top:1px solid var(--line)}
.news-row{display:grid;grid-template-columns:150px minmax(0,1fr) 90px;gap:28px;align-items:center;padding:24px 16px;border-bottom:1px solid var(--line);border-radius:8px;transition:background .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease)}
.news-row:hover{background:#fff;transform:translateY(-2px);box-shadow:var(--shadow-1);border-color:transparent}
.news-row__side{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.news-row__date{font-size:.8125rem;color:var(--text-2);font-variant-numeric:tabular-nums}
.news-row__body h3{font-size:1.0625rem;font-weight:600;line-height:1.5;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:6px}
.news-row__body p{color:var(--text-2);font-size:14.5px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row__arrow{justify-self:end;font-size:20px;color:var(--text-2);transition:color .25s var(--ease),transform .25s var(--ease)}
.news-row:hover .news-row__arrow{color:var(--ink);transform:translateX(4px)}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:220px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);text-align:center;padding:36px}
.empty-state__icon{width:40px;height:40px;color:#B4B8BE}
.empty-state p{color:var(--text-2)}

/* ============ DARK PROOF ============ */
.proof{background:var(--ink);color:var(--text-invert);padding:96px 0}
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-bottom:1px solid var(--line-dark);padding-bottom:44px;margin-bottom:52px}
.proof-stats li{padding:0 32px;border-left:1px solid var(--line-dark)}
.proof-stats li:first-child{padding-left:0;border-left:0}
.proof-stats strong{display:block;font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:700;color:#fff;line-height:1.2}
.proof-stats span{font-size:.8125rem;letter-spacing:.06em;color:var(--text-invert)}
.proof-quotes{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.proof-quote{border:1px solid var(--line-dark);border-radius:var(--r-card);padding:30px 28px;background:var(--ink-2);box-shadow:inset 0 0 0 1px rgba(198,242,78,.06)}
.proof-quote p{font-size:1.0625rem;line-height:1.9;color:#fff}
.proof-quote p::before{content:"“";color:var(--lime);font-size:1.6rem;line-height:0;vertical-align:-6px;margin-right:4px}
.proof-quote p::after{content:"”";color:var(--lime);font-size:1.6rem;line-height:0;vertical-align:-6px;margin-left:4px}
.proof-quote footer{margin-top:18px;font-size:.8125rem;color:var(--text-invert);letter-spacing:.03em}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;gap:18px;padding:24px 4px;text-align:left;transition:color .25s var(--ease)}
.faq-q:hover{color:#3f5206}
.faq-q__no{font-size:.8125rem;letter-spacing:.1em;color:var(--text-2);font-variant-numeric:tabular-nums;flex:0 0 auto}
.faq-q__text{flex:1 1 auto;font-size:1.0625rem;font-weight:600}
.faq-q__chev{width:20px;height:20px;flex:0 0 auto;color:var(--text-2);transition:transform .3s var(--ease),color .3s var(--ease)}
.faq-item.is-open .faq-q__chev{transform:rotate(180deg);color:#3f5206}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease)}
.faq-a p{padding:0 4px 26px 58px;color:var(--text-2)}

/* ============ CTA ============ */
.cta-band{background:var(--ink-2);border:1px solid var(--line-dark);border-radius:14px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{font-size:clamp(1.3rem,2.2vw,1.7rem);font-weight:700;color:#fff;line-height:1.4}
.cta-band p{color:var(--text-invert);margin-top:8px;font-size:15px}
.cta-band .btn{flex:0 0 auto}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink);color:var(--text-invert);padding:76px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-col + .footer-col{border-left:1px solid var(--line-dark);padding-left:32px}
.footer-col h4{font-size:.8125rem;letter-spacing:.08em;color:#fff;margin-bottom:18px;font-weight:600}
.footer-col p{font-size:14px;line-height:1.9;color:var(--text-invert)}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14px;color:var(--text-invert);transition:color .25s var(--ease)}
.footer-col ul a:hover{color:var(--lime)}
.footer-brand{display:flex;align-items:center;gap:9px;margin-bottom:16px}
.footer-brand .brand-badge{background:var(--lime);color:var(--ink)}
.footer-brand .brand-text{color:#fff}
.footer-site-link{margin-top:16px;display:inline-flex}
.footer-site-link a{color:var(--lime);font-size:14px}
.footer-bottom{border-top:1px solid var(--line-dark);padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12.5px;color:#8D939C}

/* ============ MOBILE CTA ============ */
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;align-items:center;gap:14px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(16,18,22,.97);border-top:1px solid var(--line-dark);transform:translateY(110%);transition:transform .3s var(--ease)}
.mobile-cta.is-visible{transform:none}
.mobile-cta__label{font-size:.8125rem;color:#fff;letter-spacing:.05em}
.mobile-cta__link{font-size:.8125rem;color:var(--lime);margin-right:auto}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{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:1440px){
  .container{max-width:1320px}
}
@media (max-width:1200px){
  .container{padding:0 32px}
  .benefit-grid{grid-template-columns:1fr 1fr}
  .benefit-card--lead{grid-column:1/-1}
  .proof-stats{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .proof-stats li:nth-child(3){padding-left:0;border-left:0}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:78px 0}
  .header-inner{grid-template-columns:1fr auto;gap:12px 16px;padding:12px 0}
  body.is-scrolled .header-inner{padding:10px 0}
  .brand{grid-column:1;grid-row:1}
  .nav-toggle{display:flex;grid-column:2;grid-row:1;justify-self:end}
  .nav-search{grid-column:1/-1;grid-row:2;max-width:none;justify-self:stretch;padding-left:14px}
  .main-nav{position:fixed;top:0;right:0;bottom:0;width:min(340px,88vw);background:var(--bg);border-left:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:96px 20px 32px;transform:translateX(102%);transition:transform .3s var(--ease);z-index:85;box-shadow:-16px 0 44px rgba(16,18,22,.14);overflow-y:auto}
  .main-nav.is-open{transform:none}
  .main-nav a{padding:16px 14px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);position:relative}
  .main-nav a::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:0;background:var(--lime);transition:height .25s var(--ease)}
  .main-nav a:hover::before,.main-nav a.is-active::before{height:22px}
  .main-nav a::after{display:none}
  .hero{min-height:auto;padding:84px 0 64px}
  .hero__title{font-size:clamp(2rem,6vw,2.8rem)}
  .scene{grid-template-columns:1fr;gap:28px;margin-bottom:64px}
  .scene--flip .scene__media{order:0}
  .news-row{grid-template-columns:minmax(0,1fr) auto;gap:8px 18px;padding:20px 12px}
  .news-row__side{grid-column:1/-1;flex-direction:row;align-items:center;gap:12px}
  .news-row__body h3{white-space:normal}
  .news-row__arrow{grid-column:2;grid-row:2}
  .proof-quotes{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-col + .footer-col{border-left:0;padding-left:0}
  .mobile-cta{display:flex}
  .site-footer{padding-bottom:82px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .hero{padding:64px 0 52px}
  .hero__stats{margin-top:38px;padding-top:20px;gap:20px 0}
  .hero__stats li{padding:0 20px}
  .hero__stats li:nth-child(3){padding-left:0;border-left:0}
  .benefit-grid{grid-template-columns:1fr}
  .benefit-card{padding:26px 22px}
  .proof{padding:64px 0}
  .proof-stats{padding-bottom:32px;margin-bottom:36px}
  .proof-stats li{padding:0 20px}
  .faq-a p{padding-left:4px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center}
}

/* roulang page: article */
:root{
  --ink:#101216;
  --ink-2:#1B1F27;
  --lime:#C6F24E;
  --lime-soft:rgba(198,242,78,.12);
  --lime-line:rgba(198,242,78,.4);
  --orange:#FF6A3D;
  --bg:#F6F5F1;
  --bg-2:#EDEBE4;
  --border:#E3E1D9;
  --text:#1A1D22;
  --muted:#5A6068;
  --dark-text:#D7DAE0;
  --radius:10px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(16,18,22,.04),0 12px 32px rgba(16,18,22,.06);
  --shadow-hover:0 2px 4px rgba(16,18,22,.06),0 20px 44px rgba(16,18,22,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:78px;
}
*,*::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:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:height .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(246,245,241,.97);box-shadow:0 10px 30px rgba(16,18,22,.06)}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:var(--header-h);padding-top:10px;padding-bottom:10px;
  transition:min-height .25s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-badge{
  display:inline-flex;align-items:center;
  background:var(--ink);color:var(--lime);
  font-size:15px;font-weight:700;letter-spacing:.04em;
  padding:7px 12px;border-radius:var(--radius-pill);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--ink);white-space:nowrap}
.nav-search{
  position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:440px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-pill);
  padding:5px 5px 5px 42px;margin:0;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 2px rgba(198,242,78,.45);background:#fff}
.nav-search__icon{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--muted)}
.nav-search__icon svg{width:100%;height:100%;display:block}
.nav-search input[type=search]{
  flex:1 1 auto;min-width:0;border:0;background:transparent;
  font-size:15px;line-height:1.6;padding:8px 6px;outline:none;
}
.nav-search input[type=search]::placeholder{color:#9AA0A8}
.nav-search button{
  flex:0 0 auto;border:0;cursor:pointer;
  background:var(--ink);color:var(--lime);
  font-size:14px;font-weight:600;letter-spacing:.04em;
  padding:9px 18px;border-radius:var(--radius-pill);
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.nav-search button:hover{background:var(--lime);color:var(--ink)}
.nav-search button:active{transform:scale(.97)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;flex:0 0 auto}
.main-nav a{
  position:relative;font-size:14.5px;font-weight:600;color:var(--muted);
  padding:9px 12px;border-radius:var(--radius-pill);
  transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--ink);background:rgba(198,242,78,.16)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:var(--radius-sm);
  background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- reading progress ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--lime);z-index:80;transition:width .1s linear}

/* ---------- breadcrumb ---------- */
.breadcrumb{background:var(--bg-2);border-bottom:1px solid var(--border)}
.breadcrumb .container{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:13px;padding-bottom:13px;font-size:13px;color:var(--muted)}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-decoration-color:var(--lime);text-underline-offset:4px}
.breadcrumb .sep{color:#B4B8BE}
.breadcrumb .current{color:var(--ink);font-weight:600;max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-head{padding:56px 0 34px;border-bottom:1px solid var(--border)}
.article-head__inner{max-width:820px;margin:0 auto}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--ink);background:var(--lime-soft);
  border:1px solid var(--lime-line);border-radius:var(--radius-pill);
  padding:5px 13px;
}
.article-head h1{
  margin:20px 0 22px;
  font-size:clamp(1.85rem,3.4vw,2.6rem);
  line-height:1.32;letter-spacing:-.02em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:14px;color:var(--muted)}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--lime);display:inline-block}
.article-meta strong{color:var(--ink);font-weight:600}

/* ---------- article body ---------- */
.article-main{padding:52px 0 72px}
.article-layout{max-width:760px;margin:0 auto}
.article-content{font-size:17px;line-height:1.9;color:var(--text)}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 1.4em}
.article-content h2{
  font-size:clamp(1.35rem,2.4vw,1.65rem);
  line-height:1.4;margin:2em 0 .8em;padding-left:14px;
  border-left:3px solid var(--lime);
}
.article-content h3{font-size:1.2rem;line-height:1.5;margin:1.7em 0 .6em}
.article-content h4{font-size:1.05rem;margin:1.4em 0 .5em}
.article-content ul,.article-content ol{margin:0 0 1.4em;padding-left:1.3em}
.article-content li{margin:.45em 0}
.article-content ul li::marker{color:var(--lime)}
.article-content ol li::marker{color:var(--muted);font-weight:600}
.article-content blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--bg-2);border-left:3px solid var(--lime);
  border-radius:0 var(--radius) var(--radius) 0;color:#333941;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:var(--radius);margin:1.6em auto;box-shadow:var(--shadow)}
.article-content figure{margin:1.8em 0}
.article-content figcaption{text-align:center;font-size:13.5px;color:var(--muted);margin-top:10px}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px}
.article-content th,.article-content td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border)}
.article-content th{background:var(--bg-2);font-weight:600}
.article-content tbody tr:nth-child(even){background:rgba(237,235,228,.5)}
.article-content a{color:var(--ink);font-weight:600;border-bottom:2px solid var(--lime-line);transition:border-color .2s var(--ease),color .2s var(--ease)}
.article-content a:hover{border-color:var(--lime)}
.article-content hr{border:0;border-top:1px solid var(--border);margin:2.4em 0}
.article-content code{background:var(--bg-2);padding:2px 6px;border-radius:4px;font-size:.92em}

/* ---------- empty state ---------- */
.empty-state{
  max-width:760px;margin:0 auto;text-align:center;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:56px 32px;min-height:260px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
}
.empty-state__icon{
  width:56px;height:56px;border-radius:50%;background:var(--bg-2);
  display:flex;align-items:center;justify-content:center;color:var(--muted);
}
.empty-state__icon svg{width:26px;height:26px}
.empty-state h2{font-size:1.25rem}
.empty-state p{color:var(--muted);font-size:15.5px;max-width:46ch}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 8px 22px rgba(198,242,78,.28)}
.btn-primary:hover{background:#D6FA6C;transform:translateY(-2px);box-shadow:0 12px 28px rgba(198,242,78,.36)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--lime)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost-light:hover{border-color:var(--lime);color:var(--lime)}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:2px solid transparent;padding-bottom:2px;
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.link-arrow svg{width:16px;height:16px;transition:transform .25s var(--ease)}
.link-arrow:hover{border-color:var(--lime)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- related ---------- */
.related{background:var(--bg-2);border-top:1px solid var(--border);padding:64px 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(1.35rem,2.4vw,1.8rem);line-height:1.3}
.section-head p{color:var(--muted);font-size:15px;margin:8px 0 0}
.related-list{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.related-row{
  display:flex;align-items:center;gap:18px;padding:22px 26px;
  border-bottom:1px solid var(--border);
  transition:background .22s var(--ease);
}
.related-row:last-child{border-bottom:0}
.related-row:hover{background:rgba(198,242,78,.08)}
.related-row__thumb{width:96px;height:64px;flex:0 0 auto;border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-2)}
.related-row__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.related-row:hover .related-row__thumb img{transform:scale(1.05)}
.related-row__body{min-width:0;flex:1 1 auto}
.related-row__body h3{font-size:1.02rem;line-height:1.5;margin-bottom:4px}
.related-row__body p{font-size:14px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.related-row__meta{flex:0 0 auto;font-size:13px;color:var(--muted);white-space:nowrap}
.related-row__arrow{flex:0 0 auto;width:20px;height:20px;color:var(--muted);transition:transform .25s var(--ease),color .25s var(--ease)}
.related-row:hover .related-row__arrow{transform:translateX(4px);color:var(--ink)}

/* ---------- back actions ---------- */
.back-actions{max-width:860px;margin:36px auto 0;display:flex;align-items:center;gap:26px;flex-wrap:wrap}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#fff;padding:52px 0}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.25rem,2.2vw,1.6rem);line-height:1.4;color:#fff}
.cta-band p{color:var(--dark-text);font-size:15px;margin:10px 0 0;max-width:52ch}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--ink);color:#fff;border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-pill);padding:10px 20px 10px 12px;
  box-shadow:0 18px 40px rgba(16,18,22,.3);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.float-cta:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 22px 48px rgba(16,18,22,.36)}
.float-cta__mark{
  width:30px;height:30px;border-radius:50%;background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.float-cta__text{font-size:14.5px;font-weight:600;letter-spacing:.02em}

/* ---------- mobile action bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:75;
  display:none;align-items:center;justify-content:space-between;gap:14px;
  background:rgba(16,18,22,.97);color:#fff;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  border-top:1px solid rgba(255,255,255,.1);
  transform:translateY(110%);transition:transform .22s var(--ease);
}
.mobile-bar.is-visible{transform:translateY(0)}
.mobile-bar__label{font-size:13px;color:var(--dark-text);letter-spacing:.04em}
.mobile-bar__label strong{display:block;color:#fff;font-size:14.5px;letter-spacing:.02em}
.mobile-bar .btn{min-height:42px;padding:0 20px;font-size:14.5px}
body.has-mobile-bar{padding-bottom:0}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--dark-text);padding:72px 0 26px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand--footer .brand-badge{background:var(--lime);color:var(--ink)}
.brand--footer .brand-text{color:#fff}
.footer-brand p{margin:18px 0 0;line-height:1.8;color:var(--dark-text);max-width:34ch}
.footer-quote{margin-top:18px !important;font-size:13.5px;color:rgba(215,218,224,.72);border-left:2px solid var(--lime-line);padding-left:12px}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col a{display:block;margin-bottom:11px;color:var(--dark-text);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a:hover{color:var(--lime);transform:translateX(3px)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:22px;flex-wrap:wrap;font-size:12.5px;color:rgba(215,218,224,.66)}
.footer-bottom p{margin:0}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .header-inner{flex-wrap:wrap;gap:14px;padding-top:12px;padding-bottom:12px}
  .nav-search{order:3;flex:1 1 100%;max-width:none}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--border);
    box-shadow:0 20px 40px rgba(16,18,22,.08);
    padding:10px 24px 18px;
    display:none;
  }
  .main-nav.is-open{display:flex}
  .main-nav a{padding:13px 12px 13px 16px;border-radius:0;border-left:3px solid transparent;font-size:15.5px}
  .main-nav a::after{display:none}
  .main-nav a.is-active{background:rgba(198,242,78,.14);border-left-color:var(--lime)}
  .nav-toggle{display:flex;margin-left:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .float-cta{right:20px;bottom:20px}
}
@media (max-width:768px){
  body{font-size:16.5px;line-height:1.85}
  .article-head{padding:38px 0 26px}
  .article-main{padding:38px 0 56px}
  .related{padding:48px 0 56px}
  .cta-band{padding:40px 0}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
  .related-row{padding:18px;gap:14px}
  .related-row__thumb{width:74px;height:54px}
  .related-row__meta{display:none}
  .float-cta{display:none}
  .mobile-bar{display:flex}
  .site-footer{padding:56px 0 88px}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .brand-text{font-size:14.5px}
  .brand-badge{font-size:13.5px;padding:6px 10px}
  .article-head h1{font-size:1.6rem}
  .article-meta{gap:8px 14px;font-size:13px}
  .breadcrumb .current{max-width:24ch}
  .related-list{border-radius:var(--radius)}
  .back-actions{flex-direction:column;align-items:stretch}
  .back-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .mobile-bar__label{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink:#101216;
  --ink-2:#1B1F27;
  --lime:#C6F24E;
  --lime-soft:rgba(198,242,78,.14);
  --orange:#FF6A3D;
  --paper:#F6F5F1;
  --paper-2:#EDEBE4;
  --line:#E3E1D9;
  --line-dark:rgba(255,255,255,.08);
  --text:#1A1D22;
  --text-2:#5A6068;
  --text-dark:#D7DAE0;
  --radius-s:8px;
  --radius-m:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,18,22,.04), 0 12px 32px rgba(16,18,22,.06);
  --shadow-2:0 2px 4px rgba(16,18,22,.06), 0 20px 44px rgba(16,18,22,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-section:clamp(56px,7vw,104px);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:var(--lime);color:var(--ink);}

*:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px;}

::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--paper-2);}
::-webkit-scrollbar-thumb{background:#b9b7ae;border-radius:999px;border:2px solid var(--paper-2);}
::-webkit-scrollbar-thumb:hover{background:var(--lime);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:40px;
  padding-right:40px;
}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(246,245,241,.88);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease), box-shadow .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(246,245,241,.98);
  box-shadow:0 1px 0 rgba(16,18,22,.04), 0 10px 30px rgba(16,18,22,.05);
}
.header-inner{
  display:grid;
  grid-template-columns:auto minmax(260px,440px) 1fr auto;
  align-items:center;
  gap:28px;
  height:84px;
  transition:height .25s var(--ease);
}
.site-header.is-scrolled .header-inner{height:68px;}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-badge{
  background:var(--ink);
  color:var(--lime);
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  padding:7px 12px;
  border-radius:8px;
  line-height:1;
}
.brand-text{
  font-size:15px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--text);
  line-height:1;
  white-space:nowrap;
}

.nav-search{
  position:relative;
  display:flex;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:4px 4px 4px 42px;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.nav-search:focus-within{
  border-color:var(--lime);
  box-shadow:0 0 0 3px rgba(198,242,78,.35);
}
.nav-search__icon{
  position:absolute;
  left:16px;
  display:flex;
  width:18px;
  height:18px;
  color:#8b9099;
}
.nav-search__icon svg{width:100%;height:100%;}
.nav-search input[type="search"]{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  margin:0;
  padding:10px 8px;
  font-size:14.5px;
  color:var(--text);
  height:auto;
  box-shadow:none;
}
.nav-search input[type="search"]::placeholder{color:#9aa0a8;}
.nav-search input[type="search"]:focus{box-shadow:none;background:transparent;}
.nav-search button{
  flex-shrink:0;
  border:0;
  margin:0;
  background:var(--ink);
  color:#fff;
  font-size:13.5px;
  letter-spacing:.05em;
  padding:9px 20px;
  border-radius:var(--radius-pill);
  cursor:pointer;
  transition:background .25s var(--ease), color .25s var(--ease);
}
.nav-search button:hover{background:var(--lime);color:var(--ink);}

.main-nav{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:8px;
}
.main-nav a{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:8px 12px;
  border-radius:var(--radius-s);
  transition:color .2s var(--ease), background .2s var(--ease);
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:3px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .26s var(--ease);
}
.main-nav a:hover{color:var(--text);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--text);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--radius-s);
  cursor:pointer;
  padding:0 11px;
}
.nav-toggle span{
  display:block;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .25s var(--ease), opacity .25s var(--ease);
}
.site-header.is-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.is-open .nav-toggle span:nth-child(2){opacity:0;}
.site-header.is-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-s);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.btn-primary{background:var(--lime);color:var(--ink);}
.btn-primary:hover{background:#d7ff६6;background:#d5ff6e;box-shadow:0 10px 24px rgba(198,242,78,.35);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.32);}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);}
.btn-outline{background:transparent;color:var(--text);border-color:rgba(16,18,22,.22);}
.btn-outline:hover{border-color:var(--ink);background:var(--ink);color:#fff;}
.btn:disabled{opacity:.4;pointer-events:none;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
  font-weight:600;
  color:var(--text);
  padding-bottom:2px;
}
.link-arrow span{
  display:inline-block;
  position:relative;
}
.link-arrow i{transition:transform .25s var(--ease);font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}
.link-arrow::after{content:none;}
.link-arrow.dark{color:#fff;}
.link-arrow.lime{color:#8fd11f;}

/* ============ Badges ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:#4d5a20;
  background:var(--lime-soft);
  border:1px solid rgba(198,242,78,.7);
  border-radius:var(--radius-pill);
  padding:5px 13px;
  line-height:1.4;
}
.badge.solid{background:var(--lime);color:var(--ink);border-color:var(--lime);}
.badge.ghost-dark{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.24);color:var(--text-dark);}
.badge.warn{color:#8f3418;background:rgba(255,106,61,.12);border-color:rgba(255,106,61,.5);}

/* ============ Hero ============ */
.hero{
  position:relative;
  background-image:linear-gradient(180deg, rgba(16,18,22,.86) 0%, rgba(16,18,22,.74) 55%, rgba(16,18,22,.82) 100%), url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:70px 0 76px;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-160px;
  width:420px;
  height:420px;
  border:1px solid rgba(198,242,78,.18);
  border-radius:50%;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:rgba(215,218,224,.72);
  margin-bottom:26px;
}
.breadcrumb a{color:rgba(215,218,224,.72);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .cur{color:var(--lime);}

.hero-tagline{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}

.hero h1{
  font-size:clamp(2.2rem,5.2vw,4.1rem);
  font-weight:700;
  line-height:1.12;
  letter-spacing:-.02em;
  margin:0 0 6px;
}
.hero h1 .h1-brand{
  display:block;
  font-size:clamp(1rem,1.6vw,1.25rem);
  font-weight:600;
  letter-spacing:.16em;
  color:var(--lime);
  margin-top:16px;
}
.h1-rule{
  width:84px;
  height:4px;
  background:var(--lime);
  border-radius:2px;
  margin:22px 0 24px;
}
.hero-sub{
  font-size:clamp(1rem,1.5vw,1.15rem);
  color:var(--text-dark);
  max-width:640px;
  line-height:1.8;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  margin-top:34px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0;
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:22px;
  max-width:760px;
}
.hero-stats .stat{padding:0 26px;border-left:1px solid rgba(255,255,255,.14);}
.hero-stats .stat:first-child{padding-left:0;border-left:0;}
.hero-stats .num{
  font-size:1.6rem;
  font-weight:700;
  color:var(--lime);
  line-height:1.2;
}
.hero-stats .lbl{
  font-size:12.5px;
  letter-spacing:.06em;
  color:rgba(215,218,224,.66);
}

/* ============ Layout two-column ============ */
.page-body{padding:var(--space-section) 0 96px;}
.layout{
  display:grid;
  grid-template-columns:296px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.side-index{
  position:sticky;
  top:104px;
  display:flex;
  flex-direction:column;
  gap:22px;
}
.index-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:24px;
  box-shadow:var(--shadow-1);
}
.index-title{
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--text-2);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.index-title::before{
  content:"";
  width:16px;
  height:2px;
  background:var(--lime);
  border-radius:2px;
}
.index-list{display:flex;flex-direction:column;}
.index-list a{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14.5px;
  color:var(--text-2);
  padding:10px 0;
  border-bottom:1px solid var(--line);
  transition:color .2s var(--ease), padding-left .2s var(--ease);
}
.index-list li:last-child a{border-bottom:0;}
.index-list a:hover{color:var(--text);padding-left:6px;}
.index-list a i{font-size:11px;color:var(--lime);opacity:0;transition:opacity .2s var(--ease);}
.index-list a:hover i{opacity:1;}

.side-card{
  background:var(--ink);
  color:var(--text-dark);
  border:1px solid var(--line-dark);
  border-radius:var(--radius-m);
  padding:0;
  overflow:hidden;
}
.side-card .thumb{
  aspect-ratio:3/2;
  overflow:hidden;
  background:var(--paper-2);
}
.side-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.side-card:hover .thumb img{transform:scale(1.04);}
.side-card .side-body{padding:22px 24px 26px;}
.side-card h3{font-size:1.05rem;font-weight:600;color:#fff;margin-bottom:8px;}
.side-card p{font-size:13.5px;line-height:1.75;color:rgba(215,218,224,.78);margin-bottom:16px;}

.content-flow{display:flex;flex-direction:column;gap:64px;min-width:0;}

/* ============ Section base ============ */
.section-title{
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
  margin-bottom:10px;
}
.section-lead{
  font-size:15.5px;
  color:var(--text-2);
  max-width:720px;
  margin-bottom:30px;
}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ============ Feature asymmetric ============ */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:20px;
}
.feature-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease), box-shadow .26s var(--ease), border-color .26s var(--ease);
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(198,242,78,.85);}
.feature-card.span-6{grid-column:span 6;}
.feature-card.span-3{grid-column:span 3;}
.feature-num{
  font-size:12.5px;
  letter-spacing:.14em;
  color:#8fd11f;
  font-weight:700;
  margin-bottom:14px;
  display:block;
}
.feature-card h3{font-size:1.15rem;font-weight:600;margin-bottom:10px;}
.feature-card p{font-size:14.5px;line-height:1.8;color:var(--text-2);}
.feature-card .ico{
  display:block;
  font-size:20px;
  color:var(--ink);
  margin-bottom:16px;
}
.feature-card.dark{
  background:var(--ink);
  color:var(--text-dark);
  border-color:var(--line-dark);
  box-shadow:none;
}
.feature-card.dark h3{color:#fff;}
.feature-card.dark p{color:rgba(215,218,224,.78);}
.feature-card.dark .ico{color:var(--lime);}
.feature-card.dark:hover{border-color:rgba(198,242,78,.5);box-shadow:0 0 0 1px rgba(198,242,78,.16), 0 18px 40px rgba(16,18,22,.3);}
.feature-divider{height:1px;background:var(--line);margin:18px 0;}
.feature-card.dark .feature-divider{background:var(--line-dark);}

/* ============ Steps ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.step{
  padding:26px 24px 28px;
  border-left:1px solid var(--line);
  transition:background .26s var(--ease);
}
.step:first-child{border-left:0;}
.step:hover{background:#fff;}
.step-idx{
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.12em;
  color:#8fd11f;
  margin-bottom:12px;
  display:block;
}
.step h3{font-size:1rem;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.75;color:var(--text-2);}

/* ============ Media rows ============ */
.media-row{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:36px;
  align-items:center;
}
.media-row.reverse .media-figure{order:2;}
.media-figure{
  border-radius:var(--radius-m);
  overflow:hidden;
  background:var(--paper-2);
  border:1px solid var(--line);
  aspect-ratio:16/10;
}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.media-figure:hover img{transform:scale(1.03);}
.media-copy h3{
  font-size:clamp(1.2rem,2vw,1.5rem);
  font-weight:700;
  line-height:1.35;
  margin-bottom:14px;
}
.media-copy p{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:14px;}
.check-list{margin:18px 0 20px;display:flex;flex-direction:column;gap:10px;}
.check-list li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--text);
  line-height:1.7;
}
.check-list li i{color:#8fd11f;font-size:13px;margin-top:7px;}

/* ============ Stage table-ish ============ */
.stage-band{
  background:var(--ink);
  border-radius:var(--radius-m);
  padding:36px 36px 34px;
  color:var(--text-dark);
  border:1px solid var(--line-dark);
}
.stage-band h3{color:#fff;font-size:1.2rem;font-weight:600;margin-bottom:8px;}
.stage-band > p{font-size:14.5px;color:rgba(215,218,224,.76);margin-bottom:26px;max-width:640px;}
.stage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.stage-item{
  padding:0 26px;
  border-left:1px solid rgba(255,255,255,.12);
}
.stage-item:first-child{padding-left:0;border-left:0;}
.stage-item .st-title{
  display:flex;
  align-items:baseline;
  gap:10px;
  margin-bottom:10px;
}
.stage-item .st-title b{font-size:1.05rem;color:#fff;font-weight:600;}
.stage-item .st-title span{font-size:12px;letter-spacing:.06em;color:var(--lime);}
.stage-item p{font-size:14px;line-height:1.78;color:rgba(215,218,224,.76);}

/* ============ FAQ ============ */
.faq-list{
  border-top:1px solid var(--line);
}
.faq-item{
  border-bottom:1px solid var(--line);
  background:transparent;
}
.faq-item summary{
  display:flex;
  align-items:center;
  gap:18px;
  padding:22px 4px;
  cursor:pointer;
  list-style:none;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:#4c6d0d;}
.faq-num{
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  color:#8fd11f;
  flex-shrink:0;
  width:30px;
}
.faq-q{
  flex:1;
  font-size:1.02rem;
  font-weight:600;
  line-height:1.6;
}
.faq-mark{
  flex-shrink:0;
  width:26px;
  height:26px;
  border:1px solid var(--line);
  border-radius:50%;
  position:relative;
  transition:transform .28s var(--ease), border-color .28s var(--ease), background .28s var(--ease);
}
.faq-mark::before,
.faq-mark::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  background:var(--ink);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-mark::before{width:11px;height:1.6px;}
.faq-mark::after{width:1.6px;height:11px;transition:opacity .25s var(--ease);}
.faq-item[open] .faq-mark{background:var(--lime);border-color:var(--lime);transform:rotate(90deg);}
.faq-item[open] .faq-mark::after{opacity:0;}
.faq-a{
  padding:0 46px 24px 52px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ============ CTA band ============ */
.cta-band{
  background:var(--ink);
  border-radius:var(--radius-m);
  border:1px solid var(--line-dark);
  padding:34px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band h3{color:#fff;font-size:1.25rem;font-weight:700;margin-bottom:6px;}
.cta-band p{color:rgba(215,218,224,.76);font-size:14.5px;}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink);
  color:var(--text-dark);
  padding:68px 0 0;
  border-top:1px solid rgba(255,255,255,.06);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:48px;
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.08em;
  color:#fff;
  font-weight:600;
  margin-bottom:18px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-badge{background:var(--lime);color:var(--ink);}
.footer-brand .brand-text{color:#fff;}
.footer-col p{
  font-size:14px;
  line-height:1.85;
  color:rgba(215,218,224,.7);
  margin-bottom:12px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:14px;
  color:rgba(215,218,224,.72);
  transition:color .2s var(--ease), padding-left .2s var(--ease);
}
.footer-links a:hover{color:var(--lime);padding-left:5px;}
.footer-contact li{
  font-size:14px;
  color:rgba(215,218,224,.72);
  line-height:1.9;
}
.footer-contact li span{color:#fff;opacity:.9;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:12px;color:rgba(215,218,224,.56);}

/* ============ Mobile fixed bar / desktop pill ============ */
.mobile-bar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:80;
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:10px 18px calc(10px + env(safe-area-inset-bottom));
  background:var(--ink);
  border-top:1px solid rgba(255,255,255,.1);
  transform:translateY(110%);
  transition:transform .25s var(--ease);
}
.mobile-bar.is-visible{transform:translateY(0);}
.mobile-bar .bar-label{
  font-size:13px;
  color:#fff;
  letter-spacing:.04em;
}
.mobile-bar .bar-label small{
  display:block;
  font-size:11.5px;
  color:rgba(215,218,224,.6);
  letter-spacing:0;
}
.mobile-bar .btn{height:42px;padding:0 18px;font-size:14px;}

.float-pill{
  position:fixed;
  right:32px;
  bottom:32px;
  z-index:80;
  display:flex;
  align-items:center;
  gap:12px;
  background:var(--ink);
  color:#fff;
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-pill);
  padding:8px 8px 8px 20px;
  box-shadow:0 18px 40px rgba(16,18,22,.28);
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity .3s var(--ease), transform .3s var(--ease);
}
.float-pill.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-pill:hover{transform:translateY(0) scale(1.02);}
.float-pill .pill-text{font-size:13.5px;letter-spacing:.03em;}
.float-pill .pill-cta{
  background:var(--lime);
  color:var(--ink);
  font-size:13.5px;
  font-weight:600;
  padding:9px 18px;
  border-radius:var(--radius-pill);
}

/* ============ Reveal ============ */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.is-visible{opacity:1;transform:none;}

/* ============ Responsive ============ */
@media (min-width:1440px){
  .container{max-width:1320px;}
}
@media (max-width:1024px){
  .container{padding-left:24px;padding-right:24px;}
  .header-inner{
    grid-template-columns:1fr auto;
    grid-template-rows:auto auto;
    height:auto;
    padding:14px 0;
    row-gap:12px;
  }
  .site-header.is-scrolled .header-inner{height:auto;}
  .brand{grid-column:1;grid-row:1;}
  .nav-toggle{display:flex;grid-column:2;grid-row:1;justify-self:end;}
  .nav-search{grid-column:1 / -1;grid-row:2;max-width:none;}
  .main-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px rgba(16,18,22,.12);
    padding:10px 24px 18px;
  }
  .site-header.is-open .main-nav{display:flex;}
  .main-nav a{
    padding:14px 6px 14px 16px;
    border-bottom:1px solid var(--line);
    font-size:15px;
    border-radius:0;
  }
  .main-nav a:last-child{border-bottom:0;}
  .main-nav a::before{
    content:"";
    position:absolute;
    left:2px;
    top:50%;
    transform:translateY(-50%);
    width:3px;
    height:16px;
    background:var(--lime);
    border-radius:2px;
    opacity:0;
    transition:opacity .2s var(--ease);
  }
  .main-nav a.is-active::before{opacity:1;}
  .main-nav a::after{display:none;}

  .layout{grid-template-columns:1fr;gap:36px;}
  .side-index{position:static;}
  .index-list{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .index-list li{border:0;}
  .index-list a{
    border:1px solid var(--line);
    border-radius:var(--radius-pill);
    padding:8px 15px;
    font-size:13.5px;
    background:#fff;
  }
  .index-list a:hover{padding-left:15px;border-color:var(--lime);}
  .index-list a i{display:none;}

  .feature-card.span-6{grid-column:span 12;}
  .feature-card.span-3{grid-column:span 6;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step{border-top:1px solid var(--line);}
  .step:nth-child(1),.step:nth-child(2){border-top:0;}
  .step:nth-child(odd){border-left:0;}
  .stage-grid{grid-template-columns:1fr;gap:22px;}
  .stage-item{padding:0;border-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;}
  .stage-item:first-child{border-top:0;padding-top:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .hero{padding:48px 0 56px;}
  .hero-stats .stat{padding:0 18px;}
  .hero-stats .num{font-size:1.35rem;}
  .media-row{grid-template-columns:1fr;gap:22px;}
  .media-row.reverse .media-figure{order:0;}
  .page-body{padding:56px 0 72px;}
  .faq-a{padding:0 8px 22px 48px;}
  .cta-band{padding:28px 24px;}
  .cta-band .btn{width:100%;justify-content:center;}
  .stage-band{padding:28px 24px;}
  .float-pill{display:none;}
  .mobile-bar{display:flex;}
  body.has-mobile-bar{padding-bottom:74px;}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px;}
  .feature-card.span-3{grid-column:span 12;}
  .steps{grid-template-columns:1fr;}
  .step{border-left:0;border-top:1px solid var(--line);}
  .step:first-child{border-top:0;}
  .feature-card{padding:22px;}
  .btn{height:44px;padding:0 18px;font-size:14.5px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn-primary{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{justify-content:center;text-align:center;}
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
  .feature-card:hover,.media-figure:hover img,.side-card:hover .thumb img{transform:none;}
}

/* roulang page: category2 */
:root{
  --ink:#101216;
  --ink-2:#1B1F27;
  --lime:#C6F24E;
  --orange:#FF6A3D;
  --warm:#F6F5F1;
  --soft:#EDEBE4;
  --line:#E3E1D9;
  --line-dark:rgba(255,255,255,.08);
  --text:#1A1D22;
  --muted:#5A6068;
  --text-dark:#D7DAE0;
  --r-card:10px;
  --r-btn:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,18,22,.04), 0 12px 32px rgba(16,18,22,.06);
  --sh-2:0 2px 4px rgba(16,18,22,.06), 0 20px 44px rgba(16,18,22,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--warm);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease);}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
ul{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(2.2rem,5.2vw,4rem);line-height:1.14;letter-spacing:-.02em;}
h2{font-size:clamp(1.55rem,2.9vw,2.15rem);line-height:1.28;}
h3{font-size:1.22rem;font-weight:600;line-height:1.45;}
::selection{background:var(--lime);color:var(--ink);}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.9);
  backdrop-filter:saturate(1.4) blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(246,245,241,.98);box-shadow:0 6px 24px rgba(16,18,22,.06);}
.header-inner{display:flex;align-items:center;gap:26px;min-height:86px;transition:min-height .3s var(--ease);}
.site-header.is-scrolled .header-inner{min-height:70px;}
.brand{display:flex;align-items:center;gap:9px;flex:0 0 auto;}
.brand-badge{
  display:inline-block;padding:5px 11px;border-radius:var(--r-pill);
  background:var(--ink);color:var(--lime);
  font-size:.95rem;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:1.02rem;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.nav-search{
  position:relative;display:flex;align-items:center;
  flex:1 1 380px;max-width:480px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.35);}
.nav-search__icon{position:absolute;left:16px;width:18px;height:18px;color:var(--muted);pointer-events:none;}
.nav-search__icon svg{width:18px;height:18px;display:block;}
.nav-search input{
  flex:1 1 auto;width:100%;border:0;background:transparent;outline:none;
  padding:12px 8px 12px 44px;font-size:.94rem;color:var(--text);
  border-radius:var(--r-pill);
}
.nav-search input::placeholder{color:#9AA0A8;}
.nav-search button{
  flex:0 0 auto;margin:4px;padding:8px 18px;border-radius:var(--r-pill);
  background:var(--lime);color:var(--ink);font-size:.88rem;font-weight:700;
  transition:filter .24s var(--ease),transform .24s var(--ease);
}
.nav-search button:hover{filter:brightness(.94);transform:translateY(-1px);}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:auto;flex:0 0 auto;order:3;}
.main-nav a{
  position:relative;font-size:.92rem;color:var(--muted);padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--ink);font-weight:700;}
.main-nav a.is-active::after{transform:scaleX(1);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;margin-left:auto;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:.94rem;font-weight:700;letter-spacing:.01em;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background:var(--lime);color:var(--ink);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(198,242,78,.34);}
.btn-ghost{border:1px solid rgba(255,255,255,.32);color:#fff;}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px);}
.btn-outline{border:1px solid var(--line);background:#fff;color:var(--ink);}
.btn-outline:hover{border-color:var(--lime);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:.92rem;font-weight:600;color:var(--ink);
  padding-bottom:2px;background-image:linear-gradient(var(--lime),var(--lime));
  background-repeat:no-repeat;background-size:0% 2px;background-position:0 100%;
  transition:background-size .28s var(--ease),color .24s var(--ease);
}
.btn-text:hover{background-size:100% 2px;}
.btn-text i{font-size:.78rem;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background:var(--ink) url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;background:rgba(16,18,22,.76);
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{padding:96px 0 72px;max-width:760px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.78rem;color:rgba(255,255,255,.62);margin-bottom:26px;}
.crumb a:hover{color:var(--lime);}
.crumb .sep{opacity:.5;}
.crumb .crumb-tag{
  padding:2px 10px;border-radius:var(--r-pill);border:1px solid rgba(198,242,78,.5);
  color:var(--lime);font-size:.74rem;letter-spacing:.06em;
}
.hero-mark{width:84px;height:4px;background:var(--lime);border-radius:2px;margin-bottom:24px;}
.page-hero h1{color:#fff;}
.page-hero h1 em{font-style:normal;color:var(--lime);}
.hero-lead{font-size:1.05rem;color:var(--text-dark);max-width:620px;margin:22px 0 0;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:34px;}
.hero-stats{
  display:flex;flex-wrap:wrap;align-items:center;gap:22px;
  margin-top:46px;padding-top:26px;border-top:1px solid var(--line-dark);
}
.hero-stats .stat{display:flex;align-items:baseline;gap:8px;}
.hero-stats .stat b{font-size:1.5rem;color:#fff;font-weight:700;letter-spacing:-.02em;}
.hero-stats .stat span{font-size:.82rem;color:rgba(255,255,255,.6);}
.hero-stats .divider{width:1px;height:24px;background:var(--line-dark);}

/* ---------- sections ---------- */
.section{padding:100px 0;}
.section--soft{background:var(--soft);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head .eyebrow{
  display:inline-block;font-size:.78rem;letter-spacing:.12em;color:var(--muted);
  text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);margin:0;}
.section-head--split{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* ---------- topic grid ---------- */
.topic-grid{margin:0 -12px;}
.topic-grid > .cell{padding:0 12px 24px;}
.topic-card{
  height:100%;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(198,242,78,.55);}
.topic-card__media{position:relative;aspect-ratio:16/10;background:var(--soft);overflow:hidden;}
.topic-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.topic-card:hover .topic-card__media img{transform:scale(1.03);}
.topic-card__flag{
  position:absolute;top:12px;left:12px;padding:3px 10px;border-radius:var(--r-pill);
  background:rgba(16,18,22,.82);color:var(--lime);font-size:.7rem;letter-spacing:.06em;
}
.topic-card__body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.topic-card__body h3{margin-bottom:10px;}
.topic-card__body p{font-size:.92rem;color:var(--muted);margin-bottom:16px;}
.topic-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-top:14px;margin-top:auto;border-top:1px solid var(--line);
}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  border:1px solid rgba(198,242,78,.6);background:rgba(198,242,78,.12);
  color:#3C4A16;font-size:.74rem;letter-spacing:.04em;
}
.tag--dark{border-color:rgba(198,242,78,.45);background:rgba(198,242,78,.1);color:var(--lime);}
.topic-meta .dur{margin-left:auto;font-size:.78rem;color:var(--muted);}
.topic-card__link{margin-top:16px;}

/* ---------- dark band ---------- */
.band-dark{background:var(--ink);color:var(--text-dark);}
.band-dark .section-head h2{color:#fff;}
.band-dark .section-head .eyebrow{color:rgba(255,255,255,.5);}
.band-dark .section-head p{color:rgba(255,255,255,.66);}
.pick-grid{margin:0 -12px;}
.pick-grid > .cell{padding:0 12px 24px;}
.pick-figure{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-dark);
  background:var(--ink-2);box-shadow:inset 0 0 0 1px rgba(198,242,78,.08);
}
.pick-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.pick-figure figcaption{padding:14px 18px;font-size:.78rem;color:rgba(255,255,255,.52);}
.pick-list{display:flex;flex-direction:column;gap:18px;}
.pick-item{
  padding:22px 24px;border:1px solid var(--line-dark);border-radius:var(--r-card);
  background:var(--ink-2);
  transition:border-color .26s var(--ease),transform .26s var(--ease);
}
.pick-item:hover{border-color:rgba(198,242,78,.45);transform:translateY(-2px);}
.pick-item h3{color:#fff;margin-bottom:8px;}
.pick-item p{font-size:.9rem;color:rgba(255,255,255,.64);margin:0;}
.metrics{
  display:flex;flex-wrap:wrap;gap:30px;
  margin-top:16px;padding-top:30px;border-top:1px solid var(--line-dark);
}
.metrics .metric{min-width:140px;}
.metrics .metric b{display:block;font-size:2rem;color:#fff;letter-spacing:-.02em;line-height:1.2;}
.metrics .metric span{font-size:.82rem;color:rgba(255,255,255,.58);}
.quote{
  margin-top:44px;padding:26px 30px;border-left:3px solid var(--lime);
  background:rgba(255,255,255,.04);border-radius:0 var(--r-card) var(--r-card) 0;
}
.quote p{font-size:1rem;color:#EDEFF3;margin-bottom:12px;}
.quote cite{font-style:normal;font-size:.82rem;color:rgba(255,255,255,.55);}

/* ---------- steps ---------- */
.steps{margin:0 -12px;counter-reset:step;}
.steps > .cell{padding:0 12px 22px;}
.step{
  height:100%;padding:28px 26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.step:hover{transform:translateY(-3px);border-color:rgba(198,242,78,.55);box-shadow:var(--sh-2);}
.step .num{
  display:block;font-size:.82rem;font-weight:700;letter-spacing:.1em;color:var(--muted);
  padding-bottom:14px;margin-bottom:16px;border-bottom:1px solid var(--line);
}
.step h3{margin-bottom:10px;}
.step p{font-size:.92rem;color:var(--muted);margin:0;}

/* ---------- faq ---------- */
.faq-list{max-width:880px;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;margin-bottom:12px;overflow:hidden;transition:border-color .24s var(--ease);}
.faq-item.is-open{border-color:rgba(198,242,78,.65);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;font-size:1rem;font-weight:600;color:var(--ink);
}
.faq-q .idx{font-size:.8rem;font-weight:700;color:var(--muted);letter-spacing:.08em;flex:0 0 auto;}
.faq-q .arrow{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:.7rem;transition:transform .28s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.is-open .arrow{transform:rotate(180deg);color:var(--ink);border-color:var(--lime);background:var(--lime);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease);}
.faq-a p{padding:0 24px 22px 62px;font-size:.94rem;color:var(--muted);margin:0;line-height:1.85;}
.faq-item.is-open .faq-a{max-height:340px;}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#fff;border-radius:0;}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:44px 0;
}
.cta-inner h2{font-size:clamp(1.4rem,2.4vw,1.85rem);margin-bottom:8px;}
.cta-inner p{color:rgba(255,255,255,.66);margin:0;font-size:.94rem;}
.cta-inner .cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--text-dark);padding:72px 0 30px;margin-top:0;}
.footer-grid{margin:0 -12px;}
.footer-grid > .cell{padding:0 12px 32px;}
.footer-col h3{
  font-size:.8rem;letter-spacing:.1em;color:#fff;font-weight:700;
  padding-bottom:14px;margin-bottom:18px;border-bottom:1px solid var(--line-dark);
}
.brand--dark .brand-text{color:#fff;}
.footer-col p{font-size:.88rem;color:rgba(255,255,255,.6);margin-bottom:10px;}
.footer-col li{margin-bottom:10px;}
.footer-col li a,.footer-col li span{font-size:.88rem;color:rgba(255,255,255,.62);}
.footer-col li a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:16px;padding-top:24px;border-top:1px solid var(--line-dark);
}
.footer-bottom p{font-size:.76rem;color:rgba(255,255,255,.45);margin:0;}

/* ---------- mobile bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:none;align-items:center;gap:14px;
  padding:10px 18px calc(10px + env(safe-area-inset-bottom));
  background:rgba(16,18,22,.96);backdrop-filter:blur(10px);
  border-top:1px solid var(--line-dark);
  transform:translateY(120%);transition:transform .28s var(--ease);
}
.mobile-bar.is-visible{transform:translateY(0);}
.mobile-bar .bar-label{font-size:.78rem;color:var(--lime);letter-spacing:.06em;}
.mobile-bar .bar-link{font-size:.8rem;color:rgba(255,255,255,.66);}
.mobile-bar .btn{margin-left:auto;height:42px;padding:0 18px;font-size:.86rem;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .header-inner{flex-wrap:wrap;gap:14px;padding:12px 0;min-height:auto;}
  .brand{order:1;}
  .nav-toggle{display:flex;order:2;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;}
  .main-nav{
    order:4;flex:1 1 100%;display:none;flex-direction:column;align-items:stretch;gap:0;
    margin:6px 0 4px;padding-top:8px;border-top:1px solid var(--line);
  }
  body.nav-open .main-nav{display:flex;}
  .main-nav a{padding:12px 0 12px 14px;border-left:3px solid transparent;}
  .main-nav a::after{display:none;}
  .main-nav a.is-active,.main-nav a:hover{border-left-color:var(--lime);color:var(--ink);}
  .hero-inner{padding:72px 0 56px;}
  .section{padding:76px 0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  body{font-size:16px;padding-bottom:76px;}
  .hero-inner{padding:56px 0 48px;}
  .page-hero h1{font-size:clamp(1.9rem,7.4vw,2.5rem);}
  .hero-lead{font-size:.96rem;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-stats{gap:16px;}
  .hero-stats .divider{display:none;}
  .hero-stats .stat{flex:1 1 45%;}
  .section{padding:58px 0;}
  .section-head{margin-bottom:32px;}
  .topic-card__body{padding:20px 18px 22px;}
  .faq-q{padding:16px 18px;font-size:.95rem;gap:12px;}
  .faq-a p{padding:0 18px 18px 44px;}
  .cta-inner{padding:36px 0;flex-direction:column;align-items:flex-start;}
  .cta-inner .cta-actions{width:100%;}
  .cta-inner .cta-actions .btn{width:100%;}
  .mobile-bar{display:flex;}
  .mobile-bar .bar-link{display:none;}
  .quote{padding:20px 18px;}
}
@media (min-width:1440px){
  :root{--wrap:1320px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}