/* roulang page: index */
:root{
  --ink:#121215;
  --paper:#F7F5F0;
  --lime:#C9F24B;
  --sand:#E8E1D5;
  --muted:#8B877E;
  --line:rgba(18,18,21,0.10);
  --line-invert:rgba(247,245,240,0.14);
  --radius-card:20px;
  --radius-mid:16px;
  --radius-btn:12px;
  --shadow:0 1px 2px rgba(18,18,21,.06);
  --shadow-hover:0 12px 32px rgba(18,18,21,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Inter","Barlow",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
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(--ink);outline-offset:3px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.scrolled{box-shadow:var(--shadow);}
.nav-wrap{
  display:flex;align-items:center;gap:28px;
  min-height:76px;padding-top:14px;padding-bottom:14px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;
  flex:0 0 auto;
}
.logo-mark{
  width:12px;height:12px;border-radius:3px;background:var(--lime);display:inline-block;
  transition:transform .2s var(--ease);
}
.logo:hover .logo-mark{transform:rotate(45deg);}
.nav-search{
  position:relative;flex:1 1 auto;max-width:520px;margin:0 auto;
}
.nav-search input{
  width:100%;height:46px;border-radius:14px;
  border:1px solid transparent;background:#F1EEE7;
  padding:0 16px 0 44px;font-size:14px;color:var(--ink);
  outline:none;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search input:focus{
  border-color:var(--ink);
  box-shadow:0 0 0 4px rgba(201,242,75,.55);
}
.nav-search .s-icon{
  position:absolute;left:15px;top:50%;transform:translateY(-50%);
  color:var(--muted);pointer-events:none;display:flex;
}
.nav-links{
  display:flex;align-items:center;gap:24px;margin-left:auto;flex:0 0 auto;
}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;padding:6px 0;white-space:nowrap;
  transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-links a:hover::after,
.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.nav-cta{
  background:var(--ink);color:var(--paper);
  border-radius:var(--radius-btn);padding:10px 18px;font-size:14px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.nav-links a.nav-cta::after{display:none;}
.nav-links a.nav-cta:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);}
.nav-burger{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:transparent;cursor:pointer;
}

/* ---------- hero ---------- */
.hero{padding:72px 0 88px;}
.hero-grid{
  display:grid;grid-template-columns:1.12fr .88fr;gap:64px;align-items:center;
}
.hero-eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);margin-bottom:18px;
}
.hero-title{
  font-size:clamp(32px,4.4vw,60px);
  line-height:1.15;letter-spacing:-.02em;font-weight:700;
  margin-bottom:20px;
}
.hero-sub{
  font-size:17px;line-height:1.8;color:#3d3d41;max-width:520px;margin-bottom:32px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-points{
  display:flex;gap:40px;margin-top:40px;flex-wrap:wrap;
}
.hero-points div strong{
  display:block;font-size:26px;font-weight:700;line-height:1.2;letter-spacing:-.01em;
}
.hero-points div span{font-size:13px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-card{
  position:relative;border-radius:24px;overflow:hidden;
  aspect-ratio:4/5;box-shadow:var(--shadow-hover);
  border:1px solid var(--line);
}
.hero-card img{width:100%;height:100%;object-fit:cover;}
.hero-badge{
  position:absolute;top:18px;left:18px;
  background:var(--lime);color:var(--ink);
  border-radius:999px;padding:7px 15px;font-size:12px;font-weight:700;
  letter-spacing:.02em;
}
.hero-stats{
  position:absolute;left:18px;right:18px;bottom:18px;
  background:var(--ink);color:var(--paper);border-radius:16px;
  padding:14px 18px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;
}
.hero-stats strong{font-size:15px;font-weight:700;display:block;line-height:1.3;}
.hero-stats span{color:rgba(247,245,240,.62);font-size:12px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);padding:14px 26px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:var(--paper);color:var(--ink);transform:translateY(-1px);}
.link-arrow{
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--ink);padding-bottom:2px;
  transition:border-color .18s var(--ease),border-width .18s var(--ease),color .18s var(--ease);
}
.link-arrow:hover{border-bottom-width:2px;border-color:var(--lime);}

/* ---------- section shell ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--sand);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:38px;flex-wrap:wrap;
}
.section-title{
  position:relative;padding-left:16px;
  font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;
  border-radius:2px;background:var(--lime);
}
.section-desc{color:var(--muted);font-size:15px;margin-top:10px;padding-left:16px;max-width:640px;}

/* ---------- reel scroller ---------- */
.reel-scroller{
  display:flex;gap:20px;overflow-x:auto;
  padding:6px 4px 22px;scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
}
.reel-scroller::-webkit-scrollbar{display:none;}
.reel-card{
  flex:0 0 236px;scroll-snap-align:start;
  background:#FFFFFF;border:1px solid var(--line);
  border-radius:var(--radius-mid);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.reel-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--ink);
}
.reel-cover{
  position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--sand);
}
.reel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s var(--ease);}
.reel-card:hover .reel-cover img{transform:scale(1.03);}
.reel-duration{
  position:absolute;top:10px;left:10px;
  background:rgba(18,18,21,.88);color:#FFFFFF;
  font-size:11px;border-radius:999px;padding:3px 9px;letter-spacing:.02em;
}
.reel-body{padding:14px 15px 16px;}
.reel-title{
  font-size:15px;font-weight:600;line-height:1.45;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.reel-views{font-size:13px;color:var(--muted);margin-top:4px;}

/* ---------- checklist ---------- */
.check-list{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);
}
.list-row{
  display:flex;align-items:center;gap:22px;
  padding:20px 26px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.check-list .list-row:last-child{border-bottom:none;}
.list-row:hover{background:var(--sand);}
.list-num{
  flex:0 0 auto;width:44px;height:44px;border-radius:999px;
  border:1.5px solid var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
  transition:background .18s var(--ease),border-color .18s var(--ease);
}
.list-row:hover .list-num{background:var(--lime);border-color:var(--lime);}
.list-main{flex:1 1 auto;min-width:0;}
.list-title{font-size:17px;font-weight:600;line-height:1.5;}
.list-note{font-size:13.5px;color:var(--muted);margin-top:3px;}
.list-go{
  flex:0 0 auto;color:var(--muted);font-size:18px;
  transition:transform .18s var(--ease),color .18s var(--ease);
}
.list-row:hover .list-go{transform:translateX(4px);color:var(--ink);}

/* ---------- info grid (CMS) ---------- */
.info-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.info-card{
  background:#FFFFFF;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.info-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--ink);
}
.info-card-link{display:block;height:100%;}
.info-cover{aspect-ratio:16/9;overflow:hidden;background:var(--sand);}
.info-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s var(--ease);}
.info-card:hover .info-cover img{transform:scale(1.03);}
.info-card-body{padding:20px 22px 18px;}
.badge{
  display:inline-block;background:var(--sand);color:var(--ink);
  border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;
  margin-bottom:12px;line-height:1.7;
}
.badge-lime{background:var(--lime);}
.info-title{
  font-size:18px;font-weight:600;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-summary{
  font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);padding-top:12px;
  font-size:13px;color:var(--muted);
}
.info-meta time{font-size:12.5px;}
.info-more{font-weight:600;color:var(--ink);}
.empty-state{
  border:1px dashed var(--line);background:var(--sand);
  border-radius:var(--radius-card);padding:56px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:48px;height:48px;margin:0 auto 16px;border-radius:14px;
  border:1.5px solid var(--ink);display:flex;align-items:center;justify-content:center;
}
.empty-state p{font-size:15px;color:var(--muted);}
.empty-state a{
  display:inline-block;margin-top:14px;font-size:14px;font-weight:600;
  border-bottom:1px solid var(--ink);padding-bottom:2px;
}

/* ---------- reviews marquee ---------- */
.reviews{background:var(--ink);color:var(--paper);padding:76px 0;overflow:hidden;}
.reviews .section-title{color:var(--paper);}
.reviews .section-desc{color:rgba(247,245,240,.62);}
.marquee-viewport{
  overflow:hidden;margin-top:34px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
}
.marquee-track{
  display:flex;gap:16px;width:max-content;
  animation:marquee-scroll 48s linear infinite;
}
.marquee-viewport:hover .marquee-track{animation-play-state:paused;}
@keyframes marquee-scroll{
  from{transform:translateX(0);}
  to{transform:translateX(-50%);}
}
.review-card{
  flex:0 0 auto;width:300px;
  background:#1C1C21;border:1px solid var(--line-invert);
  border-radius:16px;padding:18px 20px;
  transition:border-color .2s var(--ease);
}
.review-card:hover{border-color:rgba(201,242,75,.55);}
.review-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.review-avatar{
  width:34px;height:34px;border-radius:999px;background:var(--sand);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;flex:0 0 auto;
}
.review-name{font-size:13.5px;font-weight:600;}
.review-text{font-size:14px;line-height:1.7;color:rgba(247,245,240,.86);}
.review-tag{
  display:inline-block;margin-top:12px;
  font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  color:rgba(247,245,240,.5);
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:24px;
  width:100%;padding:22px 0 22px 18px;
  background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;line-height:1.6;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  border-radius:2px;background:transparent;
  transition:background .2s var(--ease);
}
.faq-item.open .faq-q::before{background:var(--lime);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;
  border:1.5px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:600;line-height:1;color:var(--ink);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.faq-item.open .faq-icon{background:var(--lime);border-color:var(--lime);}
.faq-a{
  display:none;padding:0 40px 22px 18px;
  font-size:15px;line-height:1.8;color:#4A4A50;
}
.faq-item.open .faq-a{display:block;}

/* ---------- CTA ---------- */
.cta{background:var(--ink);color:var(--paper);padding:88px 0;text-align:center;}
.cta-inner{max-width:720px;margin:0 auto;}
.cta h2{
  font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;
  letter-spacing:-.01em;margin-bottom:16px;
}
.cta p{font-size:16px;line-height:1.8;color:rgba(247,245,240,.72);margin-bottom:32px;}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}
.cta .link-arrow{color:var(--paper);border-color:rgba(247,245,240,.6);}
.cta .link-arrow:hover{border-color:var(--lime);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);color:var(--paper);
  border-top:1px solid var(--line-invert);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand .logo{color:var(--paper);margin-bottom:16px;}
.footer-brand p{
  font-size:14px;line-height:1.8;color:rgba(247,245,240,.62);max-width:300px;
}
.footer-col h4{
  font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(247,245,240,.45);margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{
  font-size:14px;color:rgba(247,245,240,.82);
  transition:color .18s var(--ease);
}
.footer-col a:hover{color:var(--lime);}
.footer-sub{
  display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;
}
.footer-sub input{
  flex:1 1 160px;min-width:0;height:46px;border-radius:14px;
  border:1px solid var(--line-invert);background:rgba(247,245,240,.06);
  color:var(--paper);padding:0 14px;font-size:14px;outline:none;
  transition:border-color .18s var(--ease);
}
.footer-sub input::placeholder{color:rgba(247,245,240,.42);}
.footer-sub input:focus{border-color:var(--lime);}
.footer-sub button{
  height:46px;padding:0 20px;border-radius:14px;border:0;
  background:var(--lime);color:var(--ink);font-size:14px;font-weight:600;
  cursor:pointer;transition:background .18s var(--ease);
}
.footer-sub button:hover{background:var(--paper);}
.footer-note{font-size:12px;color:rgba(247,245,240,.42);margin-top:10px;}
.footer-bottom{
  border-top:1px solid var(--line-invert);
  padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,245,240,.5);
}
.footer-bottom a{color:rgba(247,245,240,.62);}
.footer-bottom a:hover{color:var(--lime);}

/* ---------- mobile sticky CTA ---------- */
.mobile-cta{display:none;}

/* ---------- motion ---------- */
@keyframes rise{
  from{opacity:0;transform:translateY(14px);}
  to{opacity:1;transform:translateY(0);}
}
.rise{animation:rise .4s var(--ease) both;}
.rise-2{animation-delay:.09s;}
.rise-3{animation-delay:.18s;}

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

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-wrap{flex-wrap:wrap;gap:12px;min-height:auto;padding-top:14px;padding-bottom:14px;}
  .logo{order:1;}
  .nav-burger{order:2;display:inline-flex;margin-left:auto;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;margin:0;}
  .nav-search input{height:44px;}
  .nav-links{
    order:4;flex:1 1 100%;margin-left:0;
    display:none;flex-wrap:wrap;gap:16px;
    padding-top:14px;border-top:1px solid var(--line);
  }
  .nav-links.open{display:flex;}
  .nav-links a.nav-cta{margin-left:0;}
  .hero{padding:52px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-visual{order:-1;max-width:420px;}
  .hero-sub{max-width:none;}
  .section{padding:64px 0;}
  .info-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .hero{padding:40px 0 56px;}
  .hero-title{font-size:32px;}
  .hero-points{gap:26px;margin-top:30px;}
  .hero-points div strong{font-size:22px;}
  .hero-stats{padding:12px 14px;font-size:12px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:26px;}
  .info-grid{grid-template-columns:1fr;}
  .reel-card{flex:0 0 78%;}
  .review-card{width:262px;}
  .list-row{gap:16px;padding:18px 18px;}
  .list-num{width:38px;height:38px;font-size:14px;}
  .list-title{font-size:16px;}
  .faq-q{font-size:16px;padding-right:4px;}
  .faq-a{padding-right:8px;}
  .cta{padding:64px 0 88px;}
  .site-footer{padding-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  body{padding-bottom:64px;}
  .mobile-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:90;
    height:64px;align-items:center;justify-content:space-between;gap:14px;
    padding:0 20px calc(0px + env(safe-area-inset-bottom));
    background:var(--ink);border-top:1px solid var(--line-invert);
  }
  .mobile-cta span{font-size:13px;color:rgba(247,245,240,.7);}
  .mobile-cta .btn{padding:10px 18px;font-size:14px;}
}
@media (max-width:520px){
  .hero-card{aspect-ratio:1/1;}
  .hero-badge{font-size:11px;padding:6px 12px;}
  .info-card-body{padding:18px;}
}

/* roulang page: article */
:root{
  --ink:#121215;
  --paper:#F7F5F0;
  --lime:#C9F24B;
  --sand:#E8E1D5;
  --muted:#8B877E;
  --line:rgba(18,18,21,.10);
  --line-dark:rgba(247,245,240,.14);
  --radius-card:20px;
  --radius-mid:16px;
  --radius-btn:12px;
  --shadow-soft:0 1px 2px rgba(18,18,21,.06);
  --shadow-hover:0 12px 32px rgba(18,18,21,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Inter","Barlow",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
button,input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.3em;}
::selection{background:var(--lime);color:var(--ink);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.94);
  -webkit-backdrop-filter:saturate(150%) blur(8px);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(18,18,21,.10);}
.nav-wrap{display:flex;align-items:center;flex-wrap:wrap;gap:14px;min-height:72px;padding:12px 0;}
@media (min-width:1024px){.nav-wrap{flex-wrap:nowrap;gap:24px;padding:0;height:76px;}}

.logo{
  display:inline-flex;align-items:center;gap:9px;
  font-size:19px;font-weight:700;letter-spacing:-.01em;
  color:var(--ink);text-decoration:none;white-space:nowrap;
}
.logo-mark{
  width:10px;height:10px;border-radius:3px;background:var(--lime);
  box-shadow:0 0 0 3px rgba(201,242,75,.22);
}

.nav-search{position:relative;flex:1 1 100%;order:3;max-width:none;margin-top:10px;}
.nav-search .s-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted);display:flex;pointer-events:none;}
.nav-search input{
  width:100%;height:44px;border-radius:14px;
  background:#F1EEE7;border:1px solid transparent;
  padding:0 16px 0 42px;font-size:14px;color:var(--ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search input:focus{
  outline:none;background:#fff;border-color:var(--ink);
  box-shadow:0 0 0 4px rgba(201,242,75,.45);
}

.nav-burger{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;margin-left:auto;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  color:var(--ink);cursor:pointer;transition:.16s var(--ease);
}
.nav-burger:hover{background:var(--sand);}
.nav-burger:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

.nav-links{display:none;order:4;flex:1 1 100%;flex-direction:column;gap:2px;padding-top:6px;}
.nav-links.is-open{display:flex;}
.nav-links a{
  position:relative;display:block;
  padding:11px 4px;font-size:15px;font-weight:500;
  color:var(--ink);text-decoration:none;
  border-bottom:1px solid var(--line);
  transition:color .16s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-1px;height:2px;width:100%;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.nav-cta{
  margin-top:10px;border-bottom:0;text-align:center;
  background:var(--ink);color:var(--paper);
  padding:11px 18px;border-radius:var(--radius-btn);font-weight:600;font-size:14px;
}
.nav-links a.nav-cta::after{display:none;}
.nav-links a.nav-cta:hover{background:var(--lime);color:var(--ink);}

@media (min-width:1024px){
  .nav-search{flex:0 1 480px;order:0;margin-top:0;}
  .nav-search input{height:46px;}
  .nav-burger{display:none;}
  .nav-links{
    display:flex;flex-direction:row;align-items:center;
    flex:0 0 auto;margin-left:auto;gap:24px;padding-top:0;
  }
  .nav-links a{padding:6px 0;border-bottom:0;font-size:15px;}
  .nav-links a.nav-cta{margin-top:0;padding:10px 18px;}
}

/* ---------- article head ---------- */
.page-head{padding:28px 0 4px;}
@media (min-width:1024px){.page-head{padding:40px 0 8px;}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb a{color:var(--muted);text-decoration:none;transition:color .16s var(--ease);}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:rgba(18,18,21,.22);}
.breadcrumb .current{color:var(--ink);font-weight:600;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  background:var(--sand);color:var(--ink);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge.is-lime{background:var(--lime);}
.badge.is-outline{background:transparent;border:1px solid var(--line);color:var(--muted);font-weight:500;}

h1.article-title{
  margin:18px 0 18px;max-width:920px;
  font-size:30px;line-height:1.22;font-weight:700;letter-spacing:-.02em;
}
@media (min-width:768px){h1.article-title{font-size:40px;}}
@media (min-width:1024px){h1.article-title{font-size:52px;line-height:1.16;letterspacing:-.02em;}}

.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(18,18,21,.22);}
.meta-row time{color:var(--muted);}
.head-rule{margin-top:26px;height:1px;background:var(--line);}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:40px;
  padding:32px 0 56px;
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 280px;gap:56px;justify-content:space-between;padding:44px 0 72px;}
}

.article-body{
  font-size:16.5px;line-height:1.9;color:#1c1c20;
  max-width:760px;overflow-wrap:break-word;
}
@media (min-width:768px){.article-body{font-size:17px;}}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;margin:2em 0 .7em;padding-left:16px;
  font-size:23px;line-height:1.35;font-weight:700;letter-spacing:-.01em;color:var(--ink);
}
@media (min-width:768px){.article-body h2{font-size:29px;}}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;
  border-radius:2px;background:var(--lime);
}
.article-body h3{margin:1.7em 0 .6em;font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);}
@media (min-width:768px){.article-body h3{font-size:21px;}}
.article-body h4{margin:1.5em 0 .5em;font-size:17px;font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.4em;}
.article-body li{margin:.5em 0;line-height:1.9;}
.article-body li::marker{color:var(--ink);}
.article-body blockquote{
  margin:1.7em 0;padding:20px 22px;
  background:var(--sand);border-left:3px solid var(--lime);
  border-radius:0 var(--radius-mid) var(--radius-mid) 0;
  color:#3a3a33;font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:auto;max-width:100%;height:auto;margin:1.7em auto;
  border-radius:var(--radius-mid);
}
.article-body figure{margin:1.7em 0;}
.article-body figcaption{
  margin-top:10px;text-align:center;font-size:13px;color:var(--muted);
}
.article-body a{
  color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;
  text-underline-offset:3px;transition:.16s var(--ease);
}
.article-body a:hover{text-decoration-thickness:2px;text-decoration-color:var(--lime);}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{
  text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);
}
.article-body th{background:var(--sand);font-weight:600;}
.article-body code{
  background:rgba(18,18,21,.06);padding:2px 6px;border-radius:6px;font-size:.92em;
}
.article-body pre{
  background:var(--ink);color:var(--paper);padding:18px;border-radius:var(--radius-mid);
  overflow-x:auto;font-size:14px;line-height:1.7;
}

/* ---------- aside ---------- */
.article-aside{display:none;}
@media (min-width:1024px){.article-aside{display:block;}}
.aside-inner{position:sticky;top:100px;display:grid;gap:20px;}
.toc-box{
  border:1px solid var(--line);border-radius:var(--radius-mid);
  background:#fff;padding:20px;
}
.toc-box h3{
  margin:0 0 14px;font-size:12px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--muted);
}
#tocList{display:grid;gap:2px;}
#tocList a{
  display:block;padding:8px 10px;border-radius:10px;
  border-left:2px solid transparent;
  font-size:14px;line-height:1.5;color:#55534c;text-decoration:none;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
#tocList a:hover{background:var(--sand);color:var(--ink);}
#tocList a.active{
  background:rgba(201,242,75,.30);border-left-color:var(--lime);
  color:var(--ink);font-weight:600;
}
.toc-empty{font-size:13px;line-height:1.7;color:var(--muted);display:none;}
.aside-note{
  border:1px solid var(--line);border-radius:var(--radius-mid);
  background:var(--sand);padding:20px;
}
.aside-note p{font-size:13.5px;line-height:1.8;color:#4b4a44;margin:0 0 12px;}
.aside-note a{
  font-size:14px;font-weight:600;color:var(--ink);
  text-decoration:underline;text-underline-offset:4px;
}
.aside-note a:hover{text-decoration-color:var(--lime);text-decoration-thickness:2px;}

/* ---------- sections & cards ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-title{
  position:relative;padding-left:16px;
  font-size:24px;line-height:1.3;font-weight:700;letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;
  border-radius:2px;background:var(--lime);
}
@media (min-width:1024px){.section-title{font-size:32px;}}
.section-sub{font-size:14.5px;line-height:1.8;color:#5b594f;max-width:620px;margin-top:10px;}
.link-more{
  font-size:14px;font-weight:600;color:var(--ink);
  text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;
  white-space:nowrap;
}
.link-more:hover{text-decoration-thickness:2px;text-decoration-color:var(--lime);}

.cards{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:768px){.cards{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  color:inherit;text-decoration:none;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--ink);}
.card:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--sand);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-media .badge{position:absolute;left:12px;top:12px;}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 20px;}
.card-title{font-size:17px;font-weight:600;line-height:1.5;letter-spacing:-.005em;}
.card-desc{font-size:14px;line-height:1.75;color:#56544d;}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.card-foot .go{font-weight:600;color:var(--ink);}

/* ---------- dark cta ---------- */
.cta-wrap{padding:16px 0 64px;}
@media (min-width:1024px){.cta-wrap{padding:24px 0 96px;}}
.cta-dark{
  background:var(--ink);color:var(--paper);
  border-radius:24px;padding:44px 22px;text-align:center;
}
@media (min-width:768px){.cta-dark{padding:68px 56px;}}
.cta-dark h2{
  font-size:26px;line-height:1.3;font-weight:700;letter-spacing:-.01em;margin:0 0 14px;
}
@media (min-width:1024px){.cta-dark h2{font-size:36px;}}
.cta-dark p{
  margin:0 auto 26px;max-width:540px;
  font-size:15px;line-height:1.85;color:rgba(247,245,240,.72);
}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:16px;}
.link-light{
  font-size:14px;color:rgba(247,245,240,.82);
  text-decoration:underline;text-underline-offset:4px;
}
.link-light:hover{color:var(--lime);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:0;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  transition:transform .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.btn:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:var(--paper);color:var(--ink);transform:translateY(-1px);}
.btn[disabled]{opacity:.4;pointer-events:none;}

/* ---------- empty state ---------- */
.article-empty{
  margin:44px 0 64px;padding:56px 24px;text-align:center;
  border:1px dashed rgba(18,18,21,.22);border-radius:var(--radius-card);
  background:var(--sand);
}
.article-empty .empty-icon{
  width:52px;height:52px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  border:1.5px solid var(--ink);border-radius:50%;color:var(--ink);
}
.article-empty h1{font-size:24px;font-weight:700;margin-bottom:10px;letter-spacing:-.01em;}
.article-empty p{font-size:14.5px;color:#55534c;margin-bottom:22px;}

/* ---------- mobile sticky cta ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 20px calc(10px + env(safe-area-inset-bottom));
  background:var(--ink);color:var(--paper);
  box-shadow:0 -6px 20px rgba(18,18,21,.18);
}
.mobile-cta span{font-size:13.5px;color:rgba(247,245,240,.82);}
.mobile-cta .btn{height:42px;padding:0 18px;font-size:14px;}
@media (min-width:768px){.mobile-cta{display:none;}}
@media (max-width:767px){body{padding-bottom:70px;}}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:56px 0 26px;}
@media (min-width:1024px){.site-footer{padding:72px 0 30px;}}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
.site-footer .logo{color:var(--paper);}
.footer-brand p{
  margin-top:14px;font-size:14px;line-height:1.8;color:rgba(247,245,240,.62);max-width:280px;
}
.footer-col h4{
  margin:0 0 14px;font-size:12px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:rgba(247,245,240,.55);
}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-col ul a{
  font-size:14px;color:rgba(247,245,240,.82);text-decoration:none;
  transition:color .16s var(--ease);
}
.footer-col ul a:hover{color:var(--lime);}
.footer-sub{display:flex;gap:8px;margin-top:12px;}
.footer-sub input{
  flex:1 1 auto;min-width:0;height:44px;border-radius:12px;
  border:1px solid var(--line-dark);background:rgba(247,245,240,.06);
  color:var(--paper);padding:0 14px;font-size:14px;
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
}
.footer-sub input::placeholder{color:rgba(247,245,240,.45);}
.footer-sub input:focus{outline:none;border-color:var(--lime);background:rgba(247,245,240,.10);}
.footer-sub button{
  height:44px;padding:0 18px;border:0;border-radius:12px;
  background:var(--lime);color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .16s var(--ease);
}
.footer-sub button:hover{background:var(--paper);}
.footer-sub button:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.footer-note{margin-top:8px;font-size:12px;color:rgba(247,245,240,.45);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,240,.55);
}
.footer-bottom a{color:rgba(247,245,240,.78);text-decoration:none;}
.footer-bottom a:hover{color:var(--lime);}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .card:hover{transform:none;}
  .card:hover .card-media img{transform:none;}
}

/* roulang page: category1 */
:root{
    --ink:#121215;
    --paper:#F7F5F0;
    --lime:#C9F24B;
    --sand:#E8E1D5;
    --muted:#8B877E;
    --line:rgba(18,18,21,.10);
    --line-dark:rgba(247,245,240,.14);
    --radius-card:20px;
    --radius-mid:16px;
    --radius-btn:12px;
    --shadow:0 1px 2px rgba(18,18,21,.06);
    --shadow-hover:0 12px 32px rgba(18,18,21,.10);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Inter","Barlow",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;}
  img{display:block;max-width:100%;}
  button{font-family:inherit;}
  input,button{font-size: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);}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){
    .container{padding-left:32px;padding-right:32px;}
  }

  /* ===== 导航 ===== */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(247,245,240,.94);
    backdrop-filter:saturate(140%) blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow 180ms var(--ease);
  }
  .site-header.scrolled{box-shadow:0 1px 2px rgba(18,18,21,.10);}
  .nav-wrap{
    display:flex;
    align-items:center;
    gap:22px;
    min-height:76px;
    padding:10px 0;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:9px;
    font-size:20px;
    font-weight:700;
    letter-spacing:-.01em;
    white-space:nowrap;
    color:var(--ink);
    border-radius:8px;
  }
  .logo-mark{
    width:12px;height:12px;
    border-radius:3px;
    background:var(--lime);
    display:inline-block;
    flex:none;
  }
  .nav-search{
    position:relative;
    flex:1 1 auto;
    max-width:460px;
    min-width:180px;
    display:flex;
    align-items:center;
  }
  .nav-search input{
    width:100%;
    height:46px;
    border-radius:14px;
    border:1px solid transparent;
    background:#F1EEE7;
    padding:0 16px 0 44px;
    color:var(--ink);
    font-size:14px;
    outline:none;
    transition:box-shadow 180ms var(--ease),background 180ms var(--ease);
  }
  .nav-search input::placeholder{color:var(--muted);}
  .nav-search input:focus{
    background:var(--paper);
    box-shadow:0 0 0 2px var(--ink),0 0 0 6px rgba(201,242,75,.55);
  }
  .s-icon{
    position:absolute;
    left:15px;
    top:50%;
    transform:translateY(-50%);
    color:var(--muted);
    display:inline-flex;
    pointer-events:none;
  }
  .nav-links{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:24px;
    font-size:15px;
    font-weight:500;
  }
  .nav-links a{
    position:relative;
    padding:6px 0;
    color:var(--ink);
    transition:color 160ms var(--ease);
  }
  .nav-links a::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-2px;
    height:2px;
    background:var(--lime);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform 180ms var(--ease);
  }
  .nav-links a:hover::after,
  .nav-links a.active::after{transform:scaleX(1);}
  .nav-links a.nav-cta{
    margin-left:6px;
    background:var(--ink);
    color:var(--paper);
    border-radius:var(--radius-btn);
    padding:10px 18px;
    font-weight:600;
    transition:background 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease);
  }
  .nav-links a.nav-cta::after{display:none;}
  .nav-links a.nav-cta:hover{
    background:var(--lime);
    color:var(--ink);
    transform:translateY(-1px);
  }
  .nav-burger{
    display:none;
    margin-left:auto;
    width:44px;height:44px;
    align-items:center;justify-content:center;
    border:1px solid var(--line);
    background:transparent;
    border-radius:12px;
    color:var(--ink);
    cursor:pointer;
  }
  .nav-burger:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

  @media (max-width:767px){
    .nav-wrap{flex-wrap:wrap;gap:12px;padding:12px 0;}
    .logo{order:1;}
    .nav-burger{display:inline-flex;order:2;}
    .nav-search{order:3;flex:0 0 100%;max-width:100%;}
    .nav-search input{height:44px;}
    .nav-links{
      order:4;
      display:none;
      flex-direction:column;
      align-items:flex-start;
      gap:6px;
      width:100%;
      margin-left:0;
      padding:8px 0 14px;
      border-top:1px solid var(--line);
    }
    .nav-links.open{display:flex;}
    .nav-links a{width:100%;padding:10px 0;font-size:16px;}
    .nav-links a.nav-cta{margin-left:0;margin-top:8px;text-align:center;width:100%;}
  }

  /* ===== 通用板块 ===== */
  .section{padding-top:56px;padding-bottom:56px;}
  @media (min-width:768px){.section{padding-top:88px;padding-bottom:88px;}}
  .eyebrow{
    display:inline-block;
    font-size:12px;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--muted);
    font-weight:600;
  }
  .h2{
    position:relative;
    font-size:24px;
    font-weight:700;
    line-height:1.25;
    letter-spacing:-.01em;
    padding-left:14px;
  }
  .h2::before{
    content:"";
    position:absolute;
    left:0;top:.28em;
    width:4px;height:20px;
    background:var(--lime);
    border-radius:2px;
  }
  @media (min-width:768px){
    .h2{font-size:34px;padding-left:18px;}
    .h2::before{width:4px;height:26px;}
  }
  .lead{color:var(--muted);font-size:15px;line-height:1.8;}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:13px 24px;
    border-radius:var(--radius-btn);
    font-weight:600;
    font-size:15px;
    border:1.5px solid transparent;
    cursor:pointer;
    transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease);
  }
  .btn:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
  .btn-primary{background:var(--ink);color:var(--paper);box-shadow:var(--shadow);}
  .btn-primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);box-shadow:var(--shadow-hover);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px);}
  .btn-lime{background:var(--lime);color:var(--ink);}
  .btn-lime:hover{background:var(--paper);color:var(--ink);transform:translateY(-1px);}
  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    font-weight:600;font-size:14px;
    border-bottom:1px solid var(--ink);
    padding-bottom:2px;
    transition:border-color 160ms var(--ease),color 160ms var(--ease);
  }
  .link-arrow:hover{border-bottom-width:2px;border-color:var(--lime);}

  /* ===== 面包屑 ===== */
  .crumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--muted);
    padding:20px 0 0;
  }
  .crumb a{transition:color 160ms var(--ease);}
  .crumb a:hover{color:var(--ink);}
  .crumb .sep{opacity:.55;}
  .crumb .now{color:var(--ink);font-weight:500;}

  /* ===== 顶部区 ===== */
  .cat-hero{
    padding-top:28px;
    padding-bottom:36px;
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:28px;
  }
  .cat-hero-left{flex:1 1 460px;min-width:0;}
  .cat-hero h1{
    font-size:32px;
    line-height:1.15;
    letter-spacing:-.02em;
    font-weight:700;
    margin:14px 0 14px;
    max-width:16em;
  }
  @media (min-width:768px){
    .cat-hero h1{font-size:52px;}
  }
  .cat-hero .sub{
    font-size:16px;
    color:var(--muted);
    max-width:32em;
  }
  .chip-bar{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    flex:0 1 400px;
  }
  .chip{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:8px 15px;
    border-radius:999px;
    background:var(--sand);
    color:var(--ink);
    font-size:13px;
    font-weight:500;
    border:1px solid transparent;
    cursor:pointer;
    transition:background 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease);
  }
  .chip:hover{border-color:var(--ink);}
  .chip:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
  .chip.is-on{background:var(--lime);color:var(--ink);border-color:var(--lime);}

  /* ===== 竖屏画廊 ===== */
  .reel-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:20px;
    margin-top:36px;
  }
  @media (min-width:768px){
    .reel-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  }
  @media (min-width:1024px){
    .reel-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
  }
  .reel-card{
    display:flex;
    flex-direction:column;
    background:#FDFCF9;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow);
    transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  }
  .reel-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-hover);
    border-color:var(--ink);
  }
  .reel-card:focus-within{border-color:var(--ink);box-shadow:var(--shadow-hover);}
  .reel-thumb{
    position:relative;
    aspect-ratio:3/4;
    overflow:hidden;
    background:var(--sand);
  }
  .reel-thumb img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform 260ms var(--ease);
  }
  .reel-card:hover .reel-thumb img{transform:scale(1.03);}
  .dur{
    position:absolute;
    top:12px;left:12px;
    background:var(--ink);
    color:var(--paper);
    font-size:11px;
    letter-spacing:.04em;
    padding:3px 9px;
    border-radius:999px;
    font-variant-numeric:tabular-nums;
  }
  .reel-body{padding:16px 16px 18px;}
  .reel-body h3{
    font-size:16px;
    font-weight:600;
    line-height:1.45;
    margin-bottom:6px;
  }
  .reel-body p{
    font-size:13px;
    color:var(--muted);
    line-height:1.7;
  }
  .reel-meta{
    margin-top:12px;
    display:flex;align-items:center;justify-content:space-between;
    font-size:12px;color:var(--muted);
    font-variant-numeric:tabular-nums;
  }

  /* ===== 深色区块 ===== */
  .dark-block{
    background:var(--ink);
    color:var(--paper);
    border-radius:0;
  }
  .dark-block .h2{color:var(--paper);}
  .dark-block .lead{color:rgba(247,245,240,.66);}
  .stat-row{
    display:grid;
    grid-template-columns:1fr;
    gap:14px;
    margin-top:32px;
  }
  @media (min-width:768px){
    .stat-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
  }
  .stat-card{
    border:1px solid var(--line-dark);
    border-radius:var(--radius-mid);
    padding:20px;
    transition:background 180ms var(--ease);
  }
  .stat-card:hover{background:rgba(247,245,240,.05);}
  .stat-card .num{
    font-size:30px;
    font-weight:700;
    letter-spacing:-.02em;
    line-height:1.2;
    color:var(--lime);
    font-variant-numeric:tabular-nums;
  }
  .stat-card .cap{
    font-size:13px;
    color:rgba(247,245,240,.66);
    margin-top:6px;
  }

  /* ===== 口碑跑马灯 ===== */
  .marquee{
    position:relative;
    overflow:hidden;
    margin-top:36px;
    padding:6px 0;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
    mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  }
  .marquee-track{
    display:flex;
    gap:14px;
    width:max-content;
    animation:slide-x 42s linear infinite;
  }
  .marquee:hover .marquee-track{animation-play-state:paused;}
  @keyframes slide-x{
    from{transform:translateX(0);}
    to{transform:translateX(-50%);}
  }
  .quote{
    display:flex;
    align-items:center;
    gap:12px;
    min-width:268px;
    padding:12px 16px;
    border:1px solid var(--line-dark);
    border-radius:14px;
  }
  .quote .av{
    width:34px;height:34px;flex:none;
    border-radius:50%;
    background:var(--sand);
    color:var(--ink);
    display:flex;align-items:center;justify-content:center;
    font-size:14px;font-weight:700;
  }
  .quote .who{font-size:13px;font-weight:600;color:var(--paper);}
  .quote .say{font-size:13px;color:rgba(247,245,240,.72);line-height:1.5;}
  .quote .tag{
    margin-left:auto;
    font-size:11px;
    letter-spacing:.08em;
    color:var(--ink);
    background:var(--lime);
    border-radius:999px;
    padding:2px 9px;
    white-space:nowrap;
  }

  /* ===== 观看步骤 ===== */
  .steps{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
    margin-top:36px;
  }
  @media (min-width:768px){
    .steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
  }
  .step{
    border-top:1px solid var(--line);
    padding-top:20px;
    display:flex;
    gap:16px;
  }
  .step .idx{
    flex:none;
    width:34px;height:34px;
    border-radius:50%;
    border:1px solid var(--ink);
    display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:700;
    font-variant-numeric:tabular-nums;
  }
  .step h3{font-size:17px;font-weight:600;margin-bottom:6px;line-height:1.4;}
  .step p{font-size:14px;color:var(--muted);line-height:1.85;}

  /* ===== FAQ ===== */
  .faq-list{margin-top:28px;border-top:1px solid var(--line);}
  .faq-item{
    border-bottom:1px solid var(--line);
  }
  .faq-item summary{
    position:relative;
    list-style:none;
    cursor:pointer;
    padding:20px 44px 20px 0;
    font-size:16px;
    font-weight:600;
    line-height:1.6;
    transition:color 160ms var(--ease),padding-left 180ms var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    transform:translateY(-50%) scaleY(0);
    transform-origin:center;
    width:3px;height:22px;
    background:var(--lime);
    border-radius:2px;
    transition:transform 180ms var(--ease);
  }
  .faq-item summary::after{
    content:"+";
    position:absolute;
    right:6px;top:50%;
    transform:translateY(-50%);
    font-size:20px;
    font-weight:400;
    color:var(--muted);
    line-height:1;
  }
  .faq-item[open] summary{padding-left:16px;}
  .faq-item[open] summary::before{transform:translateY(-50%) scaleY(1);}
  .faq-item[open] summary::after{content:"−";color:var(--ink);}
  .faq-item summary:hover{color:var(--ink);}
  .faq-item summary:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
  .faq-a{
    padding:0 0 22px 16px;
    font-size:15px;
    line-height:1.85;
    color:rgba(18,18,21,.78);
    max-width:62em;
  }

  /* ===== CTA ===== */
  .cta-block{
    background:var(--ink);
    color:var(--paper);
    text-align:center;
    padding-top:56px;
    padding-bottom:56px;
  }
  @media (min-width:768px){
    .cta-block{padding-top:88px;padding-bottom:88px;}
  }
  .cta-block .h2{
    padding-left:0;
    font-size:26px;
    color:var(--paper);
  }
  .cta-block .h2::before{display:none;}
  @media (min-width:768px){
    .cta-block .h2{font-size:38px;}
  }
  .cta-block p{
    color:rgba(247,245,240,.68);
    font-size:15px;
    margin:16px auto 0;
    max-width:38em;
  }
  .cta-actions{
    margin-top:30px;
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    justify-content:center;
    align-items:center;
  }
  .cta-block .link-arrow{
    color:var(--paper);
    border-color:rgba(247,245,240,.5);
  }
  .cta-block .link-arrow:hover{border-color:var(--lime);}

  /* ===== 页脚 ===== */
  .site-footer{
    background:var(--ink);
    color:var(--paper);
    border-top:1px solid var(--line-dark);
    padding-top:56px;
    padding-bottom:28px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
  }
  @media (min-width:768px){
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;}
  }
  .footer-brand .logo{color:var(--paper);}
  .footer-brand p{
    margin-top:14px;
    font-size:14px;
    line-height:1.85;
    color:rgba(247,245,240,.62);
    max-width:22em;
  }
  .footer-col h4{
    font-size:13px;
    letter-spacing:.12em;
    text-transform:uppercase;
    color:rgba(247,245,240,.55);
    font-weight:600;
    margin-bottom:14px;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:10px;}
  .footer-col ul a{
    font-size:14px;
    color:rgba(247,245,240,.86);
    transition:color 160ms var(--ease);
  }
  .footer-col ul a:hover{color:var(--lime);}
  .footer-sub{
    display:flex;
    gap:8px;
    margin-top:12px;
  }
  .footer-sub input{
    flex:1 1 auto;
    min-width:0;
    height:48px;
    border-radius:14px;
    border:1px solid var(--line-dark);
    background:rgba(247,245,240,.06);
    color:var(--paper);
    padding:0 14px;
    font-size:14px;
    outline:none;
    transition:border-color 160ms var(--ease),background 160ms var(--ease);
  }
  .footer-sub input::placeholder{color:rgba(247,245,240,.45);}
  .footer-sub input:focus{border-color:var(--paper);background:rgba(247,245,240,.1);}
  .footer-sub button{
    flex:none;
    height:48px;
    padding:0 18px;
    border-radius:14px;
    border:none;
    background:var(--lime);
    color:var(--ink);
    font-weight:600;
    font-size:14px;
    cursor:pointer;
    transition:background 160ms var(--ease),transform 160ms var(--ease);
  }
  .footer-sub button:hover{background:var(--paper);transform:translateY(-1px);}
  .footer-sub button:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
  .footer-note{
    margin-top:10px;
    font-size:12px;
    color:rgba(247,245,240,.45);
  }
  .footer-bottom{
    margin-top:44px;
    padding-top:20px;
    border-top:1px solid var(--line-dark);
    display:flex;
    flex-wrap:wrap;
    gap:10px 24px;
    justify-content:space-between;
    font-size:13px;
    color:rgba(247,245,240,.52);
  }
  .footer-bottom a{color:rgba(247,245,240,.72);transition:color 160ms var(--ease);}
  .footer-bottom a:hover{color:var(--lime);}

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.001ms !important;
      animation-iteration-count:1 !important;
      transition-duration:.001ms !important;
      scroll-behavior:auto !important;
    }
    .marquee-track{animation:none !important;}
    .reel-card:hover{transform:none;}
    .reel-card:hover .reel-thumb img{transform:none;}
  }

/* roulang page: category2 */
:root{
    --ink:#121215;
    --paper:#F7F5F0;
    --lime:#C9F24B;
    --sand:#E8E1D5;
    --muted:#8B877E;
    --line:rgba(18,18,21,0.10);
    --line-dark:rgba(247,245,240,0.14);
    --radius-card:20px;
    --radius-md:16px;
    --shadow-soft:0 1px 2px rgba(18,18,21,.06);
    --shadow-hover:0 12px 32px rgba(18,18,21,.10);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Inter","Barlow",sans-serif;
    font-size:17px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  input{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  :focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){
    .container{padding-left:32px;padding-right:32px;}
  }

  /* ---------- header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s var(--ease);
  }
  .site-header.is-scrolled{box-shadow:0 1px 2px rgba(18,18,21,.08);}
  .nav-wrap{
    display:flex;
    align-items:center;
    gap:24px;
    height:78px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:20px;
    font-weight:700;
    letter-spacing:-0.01em;
    color:var(--ink);
    white-space:nowrap;
  }
  .logo-mark{
    width:11px;
    height:11px;
    border-radius:3px;
    background:var(--lime);
    box-shadow:0 0 0 3px rgba(201,242,75,.28);
    display:inline-block;
  }
  .nav-search{
    position:relative;
    flex:1 1 auto;
    max-width:490px;
    display:flex;
    align-items:center;
  }
  .nav-search .s-icon{
    position:absolute;
    left:16px;
    top:50%;
    transform:translateY(-50%);
    color:var(--muted);
    display:flex;
    pointer-events:none;
  }
  .nav-search input{
    width:100%;
    height:46px;
    border:1px solid transparent;
    border-radius:14px;
    background:#F1EEE7;
    padding:0 16px 0 44px;
    font-size:15px;
    color:var(--ink);
    transition:border-color .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
  }
  .nav-search input::placeholder{color:var(--muted);}
  .nav-search input:focus{
    outline:none;
    background:var(--paper);
    border-color:var(--ink);
    box-shadow:0 0 0 4px rgba(201,242,75,.45);
  }
  .nav-links{
    display:flex;
    align-items:center;
    gap:26px;
    margin-left:auto;
  }
  .nav-links > a{
    position:relative;
    font-size:15px;
    font-weight:500;
    color:var(--ink);
    padding:6px 0;
    transition:color .18s var(--ease);
  }
  .nav-links > a::after{
    content:"";
    position:absolute;
    left:0;
    right:0;
    bottom:-2px;
    height:2px;
    background:var(--lime);
    border-radius:2px;
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .2s var(--ease);
  }
  .nav-links > a:hover::after,
  .nav-links > a.active::after{transform:scaleX(1);}
  .nav-links > a.nav-cta{
    background:var(--ink);
    color:var(--paper);
    padding:9px 18px;
    border-radius:12px;
    font-weight:600;
    transition:background .18s var(--ease), color .18s var(--ease), transform .18s var(--ease);
  }
  .nav-links > a.nav-cta::after{display:none;}
  .nav-links > a.nav-cta:hover{
    background:var(--lime);
    color:var(--ink);
    transform:translateY(-1px);
  }
  .nav-burger{
    display:none;
    align-items:center;
    justify-content:center;
    width:42px;
    height:42px;
    border:1px solid var(--line);
    border-radius:12px;
    background:transparent;
    color:var(--ink);
    cursor:pointer;
    transition:background .18s var(--ease);
  }
  .nav-burger:hover{background:var(--sand);}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:13px 24px;
    border-radius:12px;
    font-size:15px;
    font-weight:600;
    border:1.5px solid transparent;
    cursor:pointer;
    transition:background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
  }
  .btn-primary{background:var(--ink);color:var(--paper);}
  .btn-primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px);}
  .btn-lime{background:var(--lime);color:var(--ink);}
  .btn-lime:hover{background:var(--paper);color:var(--ink);transform:translateY(-1px);}
  .btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}
  .link-underline{
    display:inline-block;
    font-size:15px;
    font-weight:600;
    color:var(--ink);
    border-bottom:1px solid var(--ink);
    padding-bottom:2px;
    transition:border-color .18s var(--ease), border-width .18s var(--ease), color .18s var(--ease);
  }
  .link-underline:hover{border-bottom-width:2px;border-color:var(--lime);}

  /* ---------- hero ---------- */
  .hero-band{padding:56px 0 64px;}
  @media (min-width:1024px){.hero-band{padding:76px 0 88px;}}
  .hero-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:40px;
    align-items:center;
  }
  @media (min-width:1024px){
    .hero-grid{grid-template-columns:1.02fr .98fr;gap:56px;}
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:12px;
    font-weight:600;
    letter-spacing:.12em;
    text-transform:uppercase;
    color:var(--muted);
    margin-bottom:18px;
  }
  .eyebrow::before{
    content:"";
    width:18px;
    height:3px;
    border-radius:2px;
    background:var(--lime);
    display:inline-block;
  }
  .hero-copy h1{
    font-size:clamp(32px,4.4vw,58px);
    line-height:1.15;
    font-weight:700;
    letter-spacing:-0.02em;
    max-width:15em;
  }
  .hero-sub{
    margin-top:20px;
    font-size:17px;
    line-height:1.8;
    color:rgba(18,18,21,.72);
    max-width:30em;
  }
  .hero-actions{
    margin-top:32px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:20px;
  }
  .hero-stats{
    margin-top:36px;
    display:flex;
    flex-wrap:wrap;
    gap:28px;
    padding-top:24px;
    border-top:1px solid var(--line);
  }
  .hero-stats li{display:flex;flex-direction:column;gap:2px;}
  .hero-stats strong{font-size:24px;font-weight:700;letter-spacing:-0.02em;line-height:1.2;}
  .hero-stats span{font-size:13px;color:var(--muted);}
  .hero-media{
    position:relative;
    border-radius:24px;
    overflow:hidden;
    box-shadow:var(--shadow-hover);
    background:var(--sand);
  }
  .hero-media img{
    width:100%;
    height:100%;
    aspect-ratio:16/9;
    object-fit:cover;
  }
  .hero-badge{
    position:absolute;
    left:16px;
    top:16px;
    background:var(--lime);
    color:var(--ink);
    font-size:11px;
    font-weight:700;
    letter-spacing:.08em;
    padding:7px 13px;
    border-radius:999px;
  }
  .hero-caption{
    position:absolute;
    left:16px;
    right:16px;
    bottom:16px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:12px;
    background:rgba(18,18,21,.78);
    color:var(--paper);
    font-size:13px;
    padding:10px 14px;
    border-radius:12px;
  }

  /* ---------- band head ---------- */
  .band-head{
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:16px;
    margin-bottom:40px;
  }
  .band-head h2{
    position:relative;
    padding-left:16px;
    font-size:clamp(24px,2.6vw,34px);
    line-height:1.25;
    font-weight:700;
    letter-spacing:-0.015em;
  }
  .band-head h2::before{
    content:"";
    position:absolute;
    left:0;
    top:.28em;
    width:4px;
    height:20px;
    border-radius:2px;
    background:var(--lime);
  }
  .band-head p{
    font-size:15px;
    color:rgba(18,18,21,.66);
    max-width:34em;
  }

  /* ---------- list band ---------- */
  .list-band{padding:64px 0;}
  @media (min-width:1024px){.list-band{padding:96px 0;}}
  .list-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:40px;
    align-items:start;
  }
  @media (min-width:1024px){
    .list-grid{grid-template-columns:.82fr 1.18fr;gap:56px;}
  }
  .list-aside{
    background:var(--sand);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:18px;
    transition:box-shadow .2s var(--ease), transform .2s var(--ease);
  }
  @media (min-width:1024px){
    .list-aside{position:sticky;top:104px;}
  }
  .list-aside:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
  .list-aside img{
    width:100%;
    aspect-ratio:4/5;
    object-fit:cover;
    border-radius:14px;
  }
  .list-aside p{
    margin-top:16px;
    font-size:14px;
    line-height:1.75;
    color:rgba(18,18,21,.7);
  }
  .list-aside .link-underline{margin-top:14px;font-size:14px;}

  .num-list{border-top:1px solid var(--line);}
  .num-row{
    display:flex;
    align-items:center;
    gap:18px;
    padding:22px 14px;
    border-bottom:1px solid var(--line);
    border-radius:14px;
    transition:background .18s var(--ease), transform .18s var(--ease);
  }
  .num-row:hover{background:var(--sand);transform:translateX(3px);}
  .num-row .num{
    flex:none;
    width:46px;
    height:46px;
    display:grid;
    place-items:center;
    border-radius:999px;
    background:var(--sand);
    font-size:15px;
    font-weight:700;
    letter-spacing:.02em;
    transition:background .18s var(--ease);
  }
  .num-row:hover .num{background:var(--lime);}
  .row-body{min-width:0;}
  .row-body h3{
    font-size:18px;
    font-weight:600;
    line-height:1.4;
    letter-spacing:-0.01em;
  }
  .row-body p{
    margin-top:4px;
    font-size:14px;
    line-height:1.7;
    color:rgba(18,18,21,.64);
  }
  .num-row .arrow{
    margin-left:auto;
    flex:none;
    color:var(--muted);
    font-size:18px;
    transition:transform .18s var(--ease), color .18s var(--ease);
  }
  .num-row:hover .arrow{transform:translateX(4px);color:var(--ink);}

  /* ---------- steps ---------- */
  .steps-band{
    background:var(--sand);
    padding:64px 0;
  }
  @media (min-width:1024px){.steps-band{padding:88px 0;}}
  .steps{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    margin-top:8px;
  }
  @media (min-width:768px){.steps{grid-template-columns:repeat(3,1fr);gap:32px;}}
  .step{
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    padding:26px 24px;
    transition:box-shadow .2s var(--ease), transform .2s var(--ease), border-color .2s var(--ease);
  }
  .step:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:var(--ink);}
  .step-num{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:13px;
    font-weight:700;
    letter-spacing:.12em;
    color:var(--muted);
    text-transform:uppercase;
  }
  .step-num::before{
    content:"";
    width:4px;
    height:16px;
    border-radius:2px;
    background:var(--lime);
  }
  .step h3{margin-top:14px;font-size:20px;font-weight:600;letter-spacing:-0.01em;}
  .step p{margin-top:8px;font-size:15px;line-height:1.75;color:rgba(18,18,21,.66);}

  /* ---------- faq ---------- */
  .faq-band{padding:64px 0;}
  @media (min-width:1024px){.faq-band{padding:96px 0;}}
  .faq-inner{max-width:860px;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:first-of-type{border-top:1px solid var(--line);}
  .faq-item summary{
    position:relative;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:22px 4px 22px 20px;
    font-size:17px;
    font-weight:600;
    cursor:pointer;
    list-style:none;
    transition:color .18s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:rgba(18,18,21,.7);}
  .faq-item summary::before{
    content:"";
    position:absolute;
    left:0;
    top:50%;
    transform:translateY(-50%) scaleY(0);
    transform-origin:center;
    width:3px;
    height:20px;
    border-radius:2px;
    background:var(--lime);
    transition:transform .2s var(--ease);
  }
  .faq-item[open] summary::before{transform:translateY(-50%) scaleY(1);}
  .faq-item summary::after{
    content:"+";
    flex:none;
    font-size:20px;
    font-weight:400;
    color:var(--muted);
    line-height:1;
  }
  .faq-item[open] summary::after{content:"−";}
  .faq-answer{
    padding:0 4px 24px 20px;
    font-size:15px;
    line-height:1.8;
    color:rgba(18,18,21,.7);
    max-width:60em;
  }

  /* ---------- dark cta ---------- */
  .cta-dark{
    background:var(--ink);
    color:var(--paper);
    padding:72px 0;
  }
  @media (min-width:1024px){.cta-dark{padding:96px 0;}}
  .cta-inner{
    max-width:720px;
    margin:0 auto;
    text-align:center;
  }
  .cta-inner h2{
    font-size:clamp(24px,2.8vw,36px);
    line-height:1.25;
    font-weight:700;
    letter-spacing:-0.015em;
  }
  .cta-inner p{
    margin-top:16px;
    font-size:16px;
    line-height:1.8;
    color:rgba(247,245,240,.7);
  }
  .cta-actions{
    margin-top:32px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:center;
    gap:20px;
  }
  .cta-dark .link-underline{color:var(--paper);border-color:rgba(247,245,240,.6);}
  .cta-dark .link-underline:hover{border-color:var(--lime);}

  /* ---------- footer ---------- */
  .site-footer{
    background:var(--ink);
    color:var(--paper);
    padding:64px 0 32px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:36px;
  }
  @media (min-width:640px){.footer-grid{grid-template-columns:1.2fr 1fr;gap:40px;}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr .8fr .8fr 1.2fr;gap:44px;}}
  .footer-brand .logo{color:var(--paper);}
  .footer-brand p{
    margin-top:16px;
    font-size:14px;
    line-height:1.8;
    color:rgba(247,245,240,.62);
    max-width:22em;
  }
  .footer-col h4{
    font-size:12px;
    font-weight:600;
    letter-spacing:.12em;
    text-transform:uppercase;
    color:rgba(247,245,240,.5);
    margin-bottom:16px;
  }
  .footer-col ul li a{
    display:inline-block;
    font-size:15px;
    line-height:2.1;
    color:rgba(247,245,240,.82);
    transition:color .18s var(--ease);
  }
  .footer-col ul li a:hover{color:var(--lime);}
  .footer-sub{display:flex;gap:8px;margin-top:14px;}
  .footer-sub input{
    flex:1;
    min-width:0;
    height:48px;
    border-radius:14px;
    border:1px solid var(--line-dark);
    background:var(--paper);
    color:var(--ink);
    padding:0 14px;
    font-size:14px;
    transition:border-color .18s var(--ease), box-shadow .18s var(--ease);
  }
  .footer-sub input:focus{
    outline:none;
    border-color:var(--lime);
    box-shadow:0 0 0 3px rgba(201,242,75,.35);
  }
  .footer-sub button{
    flex:none;
    height:48px;
    padding:0 18px;
    border:none;
    border-radius:14px;
    background:var(--lime);
    color:var(--ink);
    font-size:14px;
    font-weight:600;
    cursor:pointer;
    transition:background .18s var(--ease), color .18s var(--ease);
  }
  .footer-sub button:hover{background:var(--paper);color:var(--ink);}
  .footer-note{
    margin-top:10px;
    font-size:12px;
    color:rgba(247,245,240,.44);
  }
  .footer-bottom{
    margin-top:48px;
    padding-top:24px;
    border-top:1px solid var(--line-dark);
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:12px;
    font-size:13px;
    color:rgba(247,245,240,.6);
  }
  .footer-bottom a{color:rgba(247,245,240,.8);transition:color .18s var(--ease);}
  .footer-bottom a:hover{color:var(--lime);}

  /* ---------- responsive nav ---------- */
  @media (max-width:900px){
    .nav-wrap{gap:16px;}
    .nav-links{gap:18px;}
    .nav-search{max-width:340px;}
  }
  @media (max-width:767px){
    .nav-wrap{
      flex-wrap:wrap;
      height:auto;
      padding:14px 0;
      gap:12px;
    }
    .logo{order:1;font-size:18px;}
    .nav-burger{display:flex;order:2;margin-left:auto;}
    .nav-search{order:3;flex:1 1 100%;max-width:none;}
    .nav-search input{height:44px;}
    .nav-links{
      order:4;
      flex:1 1 100%;
      display:none;
      flex-direction:column;
      align-items:stretch;
      gap:0;
      margin-left:0;
      padding-top:6px;
    }
    .nav-links.open{display:flex;}
    .nav-links > a{
      width:100%;
      padding:13px 0;
      border-bottom:1px solid var(--line);
      font-size:15px;
    }
    .nav-links > a::after{display:none;}
    .nav-links > a.nav-cta{
      margin-top:14px;
      text-align:center;
      padding:12px 18px;
      border-bottom:none;
    }
    .hero-stats{gap:20px;}
    .hero-stats strong{font-size:20px;}
    .row-body h3{font-size:16px;}
    .num-row{padding:18px 10px;gap:14px;}
    .num-row .num{width:40px;height:40px;font-size:14px;}
  }
  @media (max-width:520px){
    .band-head{align-items:flex-start;}
    .hero-actions{flex-direction:column;align-items:flex-start;gap:14px;}
    .cta-actions{flex-direction:column;gap:16px;}
    .btn{width:100%;}
    .cta-actions .link-underline,.hero-actions .link-underline{width:auto;}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.001ms !important;
      transition-duration:.001ms !important;
      scroll-behavior:auto !important;
    }
    .num-row:hover,.step:hover,.list-aside:hover{transform:none;}
  }