/* roulang page: index */
:root{
  --ink:#0B0D0C; --ink-soft:#141715; --paper:#F6F5F1; --surface:#FFFFFF;
  --line:#E5E3DD; --muted:#6B6F6A; --accent:#C8F04A; --live:#FF6A3D;
  --radius-card:16px; --radius-btn:12px; --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,13,12,.05);
  --shadow-2:0 14px 34px -18px rgba(11,13,12,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::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:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;line-height:1.8;font-weight:400;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;line-height:1.2;margin:0;}
p{margin:0 0 1.2em;}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){ .wrap{padding-left:32px;padding-right:32px;} }

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease);
}
.site-header.scrolled{box-shadow:0 1px 2px rgba(11,13,12,.06),0 10px 26px -22px rgba(11,13,12,.35);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
@media (min-width:768px){ .header-inner{height:72px;} }
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;border:1.5px solid var(--ink);border-radius:10px;display:flex;align-items:center;justify-content:center;}
.brand-text{display:flex;align-items:baseline;gap:6px;}
.brand-name{font-size:20px;font-weight:800;letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:var(--muted);font-weight:400;}
.nav-links{display:none;align-items:center;gap:28px;}
@media (min-width:1024px){ .nav-links{display:flex;} }
.nav-link{position:relative;font-size:16px;padding:8px 0;color:var(--ink);transition:color .18s var(--ease);}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width .18s var(--ease);}
.nav-link:hover::after{width:100%;}
.nav-link.active{font-weight:500;}
.nav-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-right:7px;vertical-align:2px;}
.header-right{display:none;align-items:center;gap:14px;margin-left:auto;}
@media (min-width:1024px){ .header-right{display:flex;} }
.search-box{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:var(--radius-btn);padding:0 12px;height:44px;width:208px;background:var(--surface);transition:width .24s var(--ease),border-color .2s var(--ease);}
.search-box:focus-within{width:288px;border-color:var(--ink);outline:2px solid var(--accent);outline-offset:2px;}
.search-box input{border:0;outline:0;background:transparent;width:100%;font-size:15px;}
.search-box svg{flex-shrink:0;color:var(--muted);}
.burger{display:flex;margin-left:auto;width:44px;height:44px;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);border-radius:var(--radius-btn);cursor:pointer;}
@media (min-width:1024px){ .burger{display:none;} }
.drawer{display:none;position:fixed;inset:64px 0 0 0;background:var(--surface);z-index:55;padding:20px;overflow-y:auto;}
.drawer.open{display:block;}
.drawer a.drawer-link{display:flex;align-items:center;min-height:48px;font-size:17px;border-bottom:1px solid var(--line);}
.drawer .search-box{width:100%;margin:18px 0;}
.drawer .btn{width:100%;}
@media (min-width:1024px){ .drawer{display:none !important;} }

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-weight:700;font-size:16px;line-height:1.2;
  cursor:pointer;transition:transform .18s var(--ease),filter .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{background:var(--accent);color:var(--ink);}
.btn-primary:hover{filter:brightness(.96);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{filter:brightness(1.4);transform:translateY(-1px);}
.btn-line{background:var(--surface);border-color:var(--line);color:var(--ink);}
.btn-line:hover{border-color:var(--ink);transform:translateY(-1px);}
.btn:disabled{opacity:.4;cursor:not-allowed;}
a.text-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:500;border-bottom:1px solid transparent;transition:border-color .18s var(--ease),color .18s var(--ease);}
a.text-arrow:hover{border-color:var(--ink);}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;padding:6px 10px;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--paper);color:var(--ink);font-weight:500;white-space:nowrap;}
.badge-live{background:var(--live);border-color:var(--live);color:#fff;}
.badge-ink{background:var(--ink-soft);border-color:#2A2E2B;color:#EDEFE9;}

/* ---------- layout helpers ---------- */
.kicker{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.16em;color:var(--muted);font-weight:500;}
.kicker::before{content:"";width:24px;height:1px;background:currentColor;opacity:.55;}
.section{padding-top:64px;padding-bottom:64px;}
@media (min-width:768px){ .section{padding-top:96px;padding-bottom:96px;} }
.rule{height:1px;background:var(--line);border:0;margin:0;}
.num-mono{font-variant-numeric:tabular-nums;font-weight:700;}

/* ---------- cards ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);}
.card:hover{transform:translateY(-2px);border-color:rgba(11,13,12,.2);box-shadow:var(--shadow-2);}
.card-img{overflow:hidden;background:var(--paper);}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.card:hover .card-img img{transform:scale(1.03);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ---------- hero ---------- */
.hero{padding-top:48px;padding-bottom:24px;}
@media (min-width:768px){ .hero{padding-top:72px;} }
.hero-grid{display:grid;gap:36px;align-items:center;}
@media (min-width:1024px){ .hero-grid{grid-template-columns:58fr 42fr;gap:56px;} }
.hero h1{font-size:32px;font-weight:800;line-height:1.15;margin-bottom:18px;}
@media (min-width:768px){ .hero h1{font-size:44px;} }
@media (min-width:1280px){ .hero h1{font-size:52px;} }
.hero-sub{font-size:17px;color:var(--muted);max-width:34em;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;aspect-ratio:16/9;background:var(--ink);box-shadow:var(--shadow-2);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media .live-tag{position:absolute;right:14px;bottom:14px;background:var(--ink);color:#fff;border:0;padding:8px 12px;}

/* ---------- countdown ---------- */
.countdown-band{background:var(--ink);color:#EDEFE9;}
.countdown-inner{display:grid;gap:28px;padding:36px 0;}
@media (min-width:1024px){ .countdown-inner{grid-template-columns:1fr auto;align-items:center;gap:48px;padding:44px 0;} }
.countdown-nums{display:grid;grid-template-columns:repeat(4,minmax(64px,1fr));gap:12px;}
.num-cell{border:1px solid #2A2E2B;border-radius:12px;background:var(--ink-soft);padding:12px 6px;text-align:center;min-width:0;}
.num-val{font-size:26px;line-height:1.1;font-variant-numeric:tabular-nums;font-weight:700;transition:opacity .12s linear,color .24s var(--ease);}
@media (min-width:768px){ .num-val{font-size:34px;} }
.num-label{font-size:11px;letter-spacing:.14em;color:#8B918A;margin-top:6px;}
.countdown-band.is-urgent .num-val{color:var(--live);}

/* ---------- timeline list ---------- */
.tl-list{border-top:1px solid var(--line);}
.tl-item{display:grid;grid-template-columns:1fr;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);align-items:center;transition:background-color .2s var(--ease);}
@media (min-width:768px){ .tl-item{grid-template-columns:96px 160px 1fr auto;gap:20px;padding:14px 16px;} }
.tl-item.is-first{background:var(--ink);color:#F2F3EF;border-radius:var(--radius-card);border-bottom-color:transparent;margin-bottom:8px;}
.tl-item:not(.is-first):hover{background:rgba(11,13,12,.03);}
.tl-time{font-size:20px;font-variant-numeric:tabular-nums;font-weight:700;}
.tl-thumb{border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--paper);}
.tl-thumb img{width:100%;height:100%;object-fit:cover;}
.tl-title{font-size:18px;font-weight:700;line-height:1.45;}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;font-size:13px;color:var(--muted);}
.tl-item.is-first .tl-meta{color:#A9AFA7;}
.tl-item.is-first .badge{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#EDEFE9;}
.tl-arrow{color:var(--muted);flex-shrink:0;}

/* ---------- form ---------- */
.subscribe-form{display:grid;gap:12px;}
@media (min-width:640px){ .subscribe-form{grid-template-columns:1fr auto;} }
.field{height:52px;width:100%;border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:0 16px;font-size:16px;outline:0;transition:border-color .2s var(--ease);}
.field::placeholder{color:#9AA098;}
.field:focus{border-color:var(--ink);outline:2px solid var(--accent);outline-offset:2px;}
.form-tip{margin-top:14px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 16px;font-size:14px;color:var(--muted);}

/* ---------- cms / side list ---------- */
.side-list{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);overflow:hidden;}
.side-item{display:flex;gap:14px;padding:16px;border-bottom:1px solid var(--line);transition:background-color .2s var(--ease);}
.side-item:last-child{border-bottom:0;}
.side-item:hover{background:rgba(11,13,12,.03);}
.side-index{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;font-weight:700;flex-shrink:0;padding-top:3px;}
.side-title{font-size:15px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.side-sub{font-size:12px;color:var(--muted);margin-top:6px;}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pill{display:inline-flex;align-items:center;min-height:36px;padding:6px 16px;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--surface);font-size:14px;color:var(--muted);transition:all .18s var(--ease);}
.pill:hover,.pill.active{border-color:var(--ink);color:var(--ink);background:var(--surface);}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;font-size:18px;font-weight:700;}
.faq summary::-webkit-details-marker{display:none;}
.faq .plus{font-size:22px;line-height:1;color:var(--muted);transition:transform .24s var(--ease),color .24s var(--ease);flex-shrink:0;}
.faq[open] .plus{transform:rotate(45deg);color:var(--ink);}
.faq-body{max-width:720px;color:var(--muted);padding-bottom:22px;font-size:16px;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#0B0D0C;
  --ink-soft:#141715;
  --paper:#F6F5F1;
  --surface:#FFFFFF;
  --line:#E5E3DD;
  --muted:#6B6F6A;
  --accent:#C8F04A;
  --live:#FF6A3D;
  --radius-card:16px;
  --radius-field:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,13,12,.05);
  --shadow-2:0 14px 34px -18px rgba(11,13,12,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::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:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.num-mono{font-variant-numeric:tabular-nums;font-weight:700;}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){ .wrap{padding-left:32px;padding-right:32px;} }
.rule{height:1px;background:var(--line);border:0;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;color:var(--muted);font-weight:500;
}
.eyebrow::before{content:"";display:block;width:24px;height:1px;background:var(--ink);opacity:.5;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 26px -24px rgba(11,13,12,.5);}
.header-inner{height:64px;display:flex;align-items:center;gap:20px;}
@media (min-width:768px){ .header-inner{height:72px;} }
.brand{display:flex;align-items:center;gap:8px;flex:none;}
.brand-icon{
  width:32px;height:32px;border-radius:10px;background:var(--ink);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.brand-name{font-size:20px;font-weight:800;letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:var(--muted);font-weight:400;padding-top:2px;}
.nav-links{display:none;align-items:center;gap:28px;margin-left:24px;}
@media (min-width:1024px){ .nav-links{display:flex;} }
.nav-link{
  position:relative;font-size:16px;color:var(--ink);padding:6px 0;
  display:inline-flex;align-items:center;gap:6px;transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .18s var(--ease);
}
.nav-link:hover::after,.nav-link:focus-visible::after{width:100%;}
.nav-link.active{font-weight:500;}
.nav-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.header-right{margin-left:auto;display:none;align-items:center;gap:12px;}
@media (min-width:1024px){ .header-right{display:flex;} }
.search-box{
  display:flex;align-items:center;gap:10px;
  width:208px;height:42px;padding:0 14px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-pill);
  transition:width .22s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.search-box:focus-within{width:288px;background:var(--surface);border-color:var(--ink);}
.search-box svg{flex:none;}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;
}
.search-box input::placeholder{color:var(--muted);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);border:1px solid transparent;
  padding:11px 22px;font-size:15px;font-weight:500;cursor:pointer;
  transition:transform .18s var(--ease),filter .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:var(--ink);}
.btn-primary:hover{filter:brightness(.96);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-1px);}
.btn-light{background:#FFFFFF;color:var(--ink);}
.btn-light:hover{filter:brightness(.96);transform:translateY(-1px);}
.btn[disabled]{opacity:.4;cursor:not-allowed;}
.hamburger{
  margin-left:auto;display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;
}
@media (min-width:1024px){ .hamburger{display:none;} }
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--surface);
  display:none;flex-direction:column;padding:0 20px 40px;overflow-y:auto;
}
.drawer.open{display:flex;}
.drawer-head{height:64px;display:flex;align-items:center;justify-content:space-between;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;border-bottom:1px solid var(--line);font-size:17px;
}
.drawer-link .arrow{color:var(--muted);}

/* ---------- Badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-pill);font-size:12px;font-weight:500;
  background:var(--paper);border:1px solid var(--line);color:var(--ink);
}
.badge-live{background:var(--live);border-color:var(--live);color:#FFFFFF;}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block;}
.tag-chip{
  display:inline-flex;align-items:center;padding:7px 14px;border-radius:var(--radius-pill);
  background:var(--paper);border:1px solid var(--line);font-size:13px;color:var(--ink);
  transition:border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.tag-chip:hover{border-color:var(--ink);transform:translateY(-1px);}

/* ---------- Article hero ---------- */
.article-hero{padding-top:28px;padding-bottom:8px;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.crumbs a{color:var(--muted);transition:color .18s var(--ease);}
.crumbs a:hover{color:var(--ink);}
.crumbs .sep{opacity:.6;}
.crumbs .current{color:var(--ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:32px;line-height:1.18;letter-spacing:-.01em;font-weight:800;
  max-width:920px;
}
@media (min-width:768px){ .article-title{font-size:40px;} }
@media (min-width:1200px){ .article-title{font-size:44px;} }
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;font-size:13px;color:var(--muted);
}
.article-meta .divider{width:1px;height:12px;background:var(--line);display:inline-block;}

/* ---------- Article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:48px;
  padding-top:32px;padding-bottom:56px;
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,760px) 280px;justify-content:center;gap:56px;}
}
.article-main{min-width:0;}
.hero-figure{
  margin:0 0 36px;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);
}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- CMS rich text ---------- */
.article-body{font-size:17px;line-height:1.85;color:#1B1E1C;}
.article-body > * + *{margin-top:1.2em;}
.article-body p{margin:0;font-size:17px;line-height:1.85;}
.article-body h2{
  font-size:28px;line-height:1.3;font-weight:800;margin-top:2em;margin-bottom:.7em;
  padding-left:14px;border-left:3px solid var(--accent);
}
.article-body h3{font-size:21px;line-height:1.4;font-weight:700;margin-top:1.7em;margin-bottom:.6em;}
.article-body h4{font-size:18px;font-weight:700;margin-top:1.4em;margin-bottom:.5em;}
.article-body ul,.article-body ol{padding-left:1.35em;}
.article-body li{margin-bottom:.45em;}
.article-body ul li::marker{color:var(--accent);}
.article-body strong{font-weight:700;}
.article-body a{color:var(--ink);border-bottom:2px solid var(--accent);}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--paper);
  border-left:3px solid var(--accent);border-radius:0 12px 12px 0;color:#2B2F2C;
}
.article-body blockquote p{font-size:16px;}
.article-body img{border-radius:var(--radius-card);width:100%;height:auto;margin:1.6em 0 .6em;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.5em 0;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--paper);font-weight:700;}

.empty-state{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  padding:44px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ---------- Sidebar ---------- */
.article-side{display:none;}
@media (min-width:1280px){ .article-side{display:block;} }
.side-sticky{position:sticky;top:96px;display:grid;gap:28px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-1);
}
.side-title{font-size:12px;letter-spacing:.16em;color:var(--muted);font-weight:500;margin-bottom:14px;}
.side-nav{display:grid;gap:2px;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--ink);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.side-nav a:hover{background:var(--paper);}
.side-nav a .arrow{color:var(--muted);font-size:13px;}

/* ---------- Related ---------- */
.section{padding-top:56px;padding-bottom:8px;}
@media (min-width:768px){ .section{padding-top:72px;} }
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:26px;}
@media (min-width:768px){ .section-head h2{font-size:30px;} }
.section-head .link{font-size:14px;color:var(--muted);display:inline-flex;align-items:center;gap:6px;transition:color .18s var(--ease);}
.section-head .link:hover{color:var(--ink);}
.related-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:640px){ .related-grid{grid-template-columns:repeat(2,1fr);} }
@media (min-width:1024px){ .related-grid{grid-template-columns:repeat(3,1fr);} }
.card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:rgba(11,13,12,.2);box-shadow:var(--shadow-2);}
.card:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.card-media{overflow:hidden;aspect-ratio:16/9;background:var(--paper);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px;display:grid;gap:10px;}
.card-title{font-size:18px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.card-text{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:17px;font-weight:700;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-sign{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:400;
  transition:transform .22s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.faq-item[open] .faq-sign{transform:rotate(45deg);background:var(--accent);border-color:var(--accent);}
.faq-answer{padding:0 0 22px;max-width:720px;color:#3A3E3B;font-size:16px;line-height:1.85;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);color:#FFFFFF;margin-top:72px;}
.cta-inner{padding-top:72px;padding-bottom:72px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{font-size:28px;line-height:1.3;}
@media (min-width:768px){ .cta-inner h2{font-size:34px;} }
.cta-inner p{margin-top:12px;font-size:15px;color:#A9AFA7;max-width:620px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#A9AFA7;}
.site-footer a{color:#D8DBD5;transition:color .18s var(--ease);}
.site-footer a:hover{color:var(--accent);}
.footer-cols{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:640px){ .footer-cols{grid-template-columns:repeat(2,1fr);} }
@media (min-width:1024px){ .footer-cols{grid-template-columns:repeat(4,1fr);} }
.footer-title{font-size:13px;letter-spacing:.14em;color:#7F857E;font-weight:500;margin-bottom:16px;}
.footer-list{list-style:none;padding:0;display:grid;gap:12px;font-size:15px;}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s var(--ease),transform .3s var(--ease);}
.reveal.visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#0B0D0C;
  --ink-soft:#141715;
  --paper:#F6F5F1;
  --surface:#FFFFFF;
  --line:#E5E3DD;
  --muted:#6B6F6A;
  --accent:#C8F04A;
  --live:#FF6A3D;
  --radius-card:16px;
  --radius-btn:999px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(11,13,12,.05);
  --shadow-2:0 14px 34px -18px rgba(11,13,12,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::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:'PingFang SC','HarmonyOS Sans','Noto Sans SC','Microsoft YaHei',sans-serif;
  font-size:16.5px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:none;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
h1,h2,h3{letter-spacing:-0.01em;line-height:1.2;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.wrap{max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.wrap{padding-left:32px;padding-right:32px;}}

.num-mono{font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:-0.01em;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.scrolled{box-shadow:0 2px 10px -6px rgba(11,13,12,.18);}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
@media (min-width:768px){.header-inner{height:72px;gap:28px;}}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink);
}
.brand-name{font-size:20px;font-weight:800;letter-spacing:-0.01em;}
.brand-sub{font-size:12px;color:var(--muted);font-weight:400;}

.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:26px;flex:1 1 auto;}
}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  font-size:16px;color:var(--ink);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-link:hover::after,.nav-link:focus-visible::after,.nav-link.active::after{transform:scaleX(1);}
.nav-dot{width:6px;height:6px;border-radius:999px;background:var(--accent);display:none;}
.nav-link.active .nav-dot{display:inline-block;}
.nav-link.active{font-weight:500;}

.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{position:relative;display:none;}
@media (min-width:1024px){.search-box{display:block;}}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);pointer-events:none;}
.search-box input{
  width:208px;height:40px;
  border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--paper);
  padding:0 14px 0 38px;font-size:14px;
  transition:width .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.search-box input::placeholder{color:var(--muted);}
.search-box input:focus{
  width:288px;background:var(--surface);
  border-color:var(--ink);
  outline:2px solid var(--accent);outline-offset:2px;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;
  transition:transform .18s var(--ease),filter .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:var(--ink);}
.btn-primary:hover{filter:brightness(.96);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-primary:disabled{opacity:.4;cursor:not-allowed;transform:none;filter:none;}
.btn-ink{background:var(--ink);color:#FFFFFF;}
.btn-ink:hover{filter:brightness(1.12);transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-outline:hover{border-color:var(--ink);transform:translateY(-1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--ink);
  border-bottom:1px solid transparent;
  transition:border-color .18s var(--ease),gap .18s var(--ease);
  min-height:44px;
}
.btn-text:hover{border-color:var(--ink);gap:10px;}

.menu-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);}
@media (min-width:1024px){.menu-btn{display:none;}}

.drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--surface);
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  padding:20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-list{display:grid;gap:0;}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 2px;
  border-bottom:1px solid var(--line);
  font-size:17px;
}
.drawer-foot{margin-top:28px;display:grid;gap:16px;}

/* ---------- Sections ---------- */
.sec{padding:64px 0;}
@media (min-width:768px){.sec{padding:96px 0;}}
.sec-tight{padding:48px 0;}
@media (min-width:768px){.sec-tight{padding:64px 0;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;color:var(--muted);
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--ink);opacity:.4;}

.h1{font-size:clamp(32px,4.6vw,52px);line-height:1.15;font-weight:800;}
.h2{font-size:clamp(26px,3vw,36px);line-height:1.22;font-weight:800;}
.h3{font-size:clamp(19px,1.6vw,22px);line-height:1.35;font-weight:700;}
.lead{font-size:17px;line-height:1.85;color:var(--muted);max-width:640px;}
.body-text{font-size:16.5px;line-height:1.85;max-width:700px;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.sec-head p{color:var(--muted);font-size:15px;max-width:560px;}

/* ---------- Hero ---------- */
.hero{padding:40px 0 12px;}
@media (min-width:768px){.hero{padding:56px 0 16px;}}
.hero-grid{display:grid;gap:40px;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:1.34fr 1fr;gap:56px;align-items:start;}
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:32px;}
.hero-media{display:grid;gap:16px;}
.hero-img-wrap{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:var(--ink);}
.hero-img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.badge-live{
  position:absolute;right:14px;bottom:14px;
  display:inline-flex;align-items:center;gap:6px;
  background:var(--live);color:#FFFFFF;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 12px;border-radius:999px;
}
.badge-live::before{content:"";width:6px;height:6px;border-radius:999px;background:#FFFFFF;opacity:.9;}

.count-box{
  background:var(--ink);color:#FFFFFF;
  border-radius:var(--radius-card);
  padding:20px;border:1px solid var(--ink-soft);
}
.count-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.count-title{font-size:14px;color:#C9CEC7;}
.badge-soft{
  display:inline-flex;align-items:center;
  background:var(--paper);color:var(--ink);
  font-size:12px;font-weight:700;
  padding:3px 10px;border-radius:999px;border:1px solid var(--line);
}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;}
.cd-cell{
  background:var(--ink-soft);
  border:1px solid rgba(255,255,255,.10);
  border-radius:12px;
  padding:10px 4px;text-align:center;
}
.cd-num{font-size:clamp(22px,3.2vw,30px);line-height:1.1;color:#FFFFFF;}
.cd-label{font-size:12px;color:#8B918A;margin-top:4px;}
.cd-cell.is-live .cd-num{color:var(--live);}
.count-note{margin-top:14px;font-size:13px;color:#8B918A;line-height:1.7;}

/* ---------- Cards ---------- */
.grid-cards{display:grid;gap:24px;}
@media (min-width:640px){.grid-cards{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.grid-cards.cols-3{grid-template-columns:repeat(3,1fr);}}

.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;flex-direction:column;height:100%;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(11,13,12,.2);}
.card-media{overflow:hidden;background:var(--paper);}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body p{color:var(--muted);font-size:15px;line-height:1.75;}
.card-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:500;
  padding:3px 10px;border-radius:999px;
  background:var(--paper);color:var(--ink);
  border:1px solid var(--line);
}
.tag-accent{background:var(--accent);border-color:var(--accent);font-weight:700;}

.feature-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(11,13,12,.2);}
.icon-box{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper);border:1px solid var(--line);
  margin-bottom:16px;
}
.feature-card p{color:var(--muted);font-size:15px;line-height:1.75;margin-top:8px;}

/* ---------- Layout A: grid + sticky aside ---------- */
.split{display:grid;gap:40px;}
@media (min-width:1024px){.split{grid-template-columns:1.9fr 1fr;gap:48px;align-items:start;}}
.aside-sticky{display:grid;gap:20px;}
@media (min-width:1024px){.aside-sticky{position:sticky;top:104px;}}
.aside-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px;
}
.aside-card h3{font-size:16px;font-weight:700;margin-bottom:14px;}
.aside-nav{display:grid;gap:2px;}
.aside-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:44px;font-size:15px;color:var(--ink);
  border-bottom:1px solid var(--line);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.aside-nav a:last-child{border-bottom:none;}
.aside-nav a:hover{color:var(--ink);padding-left:6px;}
.aside-nav a span{color:var(--muted);font-size:13px;}

/* ---------- Steps ---------- */
.steps{display:grid;gap:20px;}
@media (min-width:768px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 20px;
  position:relative;
}
.step-index{
  font-size:13px;color:var(--muted);
  letter-spacing:.12em;font-weight:700;
  margin-bottom:12px;display:block;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.75;}

/* ---------- Stats ---------- */
.stats-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 20px;}
@media (min-width:768px){.stats{grid-template-columns:repeat(4,1fr);}}
.stat .num-mono{font-size:clamp(30px,4vw,42px);line-height:1.1;color:var(--ink);}
.stat p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.7;}
.stat{border-left:1px solid var(--line);padding-left:18px;}

/* ---------- Subscribe form ---------- */
.form-row{display:grid;gap:12px;}
@media (min-width:640px){.form-row{grid-template-columns:1fr auto;}}
.field input{
  width:100%;height:48px;
  border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--surface);padding:0 16px;font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input::placeholder{color:var(--muted);}
.field input:focus{border-color:var(--ink);outline:2px solid var(--accent);outline-offset:2px;}
.form-note{font-size:13px;color:var(--muted);margin-top:10px;}
.form-feedback{
  display:none;
  margin-top:14px;
  background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-input);
  padding:12px 16px;font-size:14.5px;color:var(--ink);
}
.form-feedback.show{display:block;}

/* ---------- FAQ ---------- */
.faq{max-width:860px;}
.faq details{border-top:1px solid var(--line);}
.faq details:last-of-type{border-bottom:1px solid var(--line);}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  list-style:none;cursor:pointer;
  padding:20px 0;min-height:44px;
  font-size:17px;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .22s var(--ease);
}
.faq summary .plus::before,
.faq summary .plus::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
}
.faq summary .plus::before{left:0;right:0;top:10px;height:1.5px;}
.faq summary .plus::after{top:0;bottom:0;left:10px;width:1.5px;}
.faq details[open] summary .plus{transform:rotate(45deg);}
.faq-body{max-width:720px;padding:0 0 22px;color:var(--muted);font-size:15.5px;line-height:1.85;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);color:#FFFFFF;}
.cta-band .inner{padding:72px 0;display:grid;gap:24px;justify-items:start;}
.cta-band h2{font-size:clamp(26px,3.2vw,36px);line-height:1.22;font-weight:800;max-width:720px;}
.cta-band p{color:#A9AFA7;font-size:16px;max-width:640px;line-height:1.8;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#A9AFA7;}
.site-footer a{transition:color .18s var(--ease);}
.site-footer a:hover{color:var(--accent);}
.foot-title{font-size:13px;letter-spacing:.14em;color:#7F857E;font-weight:500;margin-bottom:16px;}
.foot-list{display:grid;gap:12px;font-size:15px;}
.foot-bottom{
  border-top:1px solid var(--ink-soft);
  margin-top:40px;padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7F857E;
}

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

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --ink:#0B0D0C;
  --ink-soft:#141715;
  --paper:#F6F5F1;
  --surface:#FFFFFF;
  --line:#E5E3DD;
  --muted:#6B6F6A;
  --accent:#C8F04A;
  --live:#FF6A3D;
  --radius-card:16px;
  --radius-input:12px;
  --radius-btn:999px;
  --shadow-1:0 1px 2px rgba(11,13,12,.05);
  --shadow-2:0 14px 34px -18px rgba(11,13,12,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",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%;height:auto}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.2}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.wrap{padding-left:32px;padding-right:32px}}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:99}
.skip-link:focus{left:0}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .24s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{height:64px;display:flex;align-items:center;gap:16px}
@media (min-width:768px){.header-inner{height:72px}}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:32px;height:32px;border:1.5px solid var(--line);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--ink);flex:none}
.brand-text{display:flex;align-items:baseline;gap:6px}
.brand-name{font-size:20px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:12px;color:var(--muted)}
.nav-links{display:none;align-items:center;gap:4px;margin-left:12px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{position:relative;display:inline-flex;align-items:center;padding:10px 14px;font-size:16px;border-radius:10px;transition:color .18s var(--ease)}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{font-weight:500}
.nav-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;margin-right:6px}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{display:none;align-items:center;gap:8px;width:208px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-input);background:var(--paper);transition:width .24s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
@media (min-width:1024px){.search-box{display:flex}}
.search-box:focus-within{width:288px;border-color:var(--ink);background:#fff}
.search-box svg{flex:none;color:var(--muted)}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.header-cta{display:none}
@media (min-width:1024px){.header-cta{display:inline-flex}}
.menu-toggle{display:flex;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius-input);background:var(--surface);transition:border-color .2s var(--ease)}
.menu-toggle:hover{border-color:var(--ink)}
@media (min-width:1024px){.menu-toggle{display:none}}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border:0;border-radius:var(--radius-btn);background:var(--accent);color:var(--ink);font-size:15px;font-weight:700;white-space:nowrap;transition:transform .18s var(--ease),filter .18s var(--ease)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(.96)}
.btn-primary:active{transform:translateY(0)}
.btn-primary[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border:1px solid #3A3F3B;border-radius:var(--radius-btn);background:transparent;color:#EDEFE9;font-size:15px;font-weight:500;white-space:nowrap;transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;padding-bottom:2px;border-bottom:1px solid var(--line);transition:border-color .18s var(--ease),color .18s var(--ease)}
.text-link:hover{border-color:var(--ink)}
.text-link svg{transition:transform .2s var(--ease)}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- drawer ---------- */
.drawer{position:fixed;left:0;right:0;top:64px;bottom:0;z-index:55;background:var(--surface);padding:16px 20px 40px;display:none;flex-direction:column;gap:6px;overflow-y:auto}
@media (min-width:768px){.drawer{top:72px}}
.drawer.open{display:flex}
@media (min-width:1024px){.drawer{display:none!important}}
.drawer-link{display:flex;align-items:center;min-height:56px;font-size:17px;font-weight:500;border-bottom:1px solid var(--line)}
.drawer-link.active{color:var(--ink)}
.drawer .search-box{display:flex;width:100%;margin:16px 0 4px}
.drawer .btn-primary{width:100%;margin-top:16px}

/* ---------- hero ---------- */
.hero{background:var(--surface);border-bottom:1px solid var(--line);padding:32px 0 56px}
@media (min-width:768px){.hero{padding:44px 0 72px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.35fr 1fr;gap:56px;align-items:center}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:24px}
.crumbs a:hover{color:var(--ink)}
.crumbs-current{color:var(--ink)}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.18em;color:var(--muted);font-weight:500}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--ink);flex:none}
.hero h1{margin-top:18px;font-size:32px;line-height:1.15;font-weight:800}
@media (min-width:768px){.hero h1{font-size:44px}}
@media (min-width:1280px){.hero h1{font-size:50px}}
.hero-lede{margin-top:18px;font-size:17px;color:var(--muted);max-width:60ch}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:30px}
.hero-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
@media (min-width:768px){.hero-facts{grid-template-columns:repeat(3,1fr)}}
.hero-facts dt{font-size:13px;color:var(--muted)}
.hero-facts dd{margin:6px 0 0;font-size:20px;font-weight:700;font-variant-numeric:tabular-nums}
.hero-media{position:relative;margin:0;border-radius:var(--radius-card);overflow:hidden;background:var(--ink);box-shadow:var(--shadow-2)}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-media figcaption{position:absolute;left:14px;right:14px;bottom:12px;display:inline-block;width:auto;max-width:calc(100% - 28px);font-size:12px;color:#EDEFE9;background:rgba(11,13,12,.66);border-radius:999px;padding:5px 14px}

/* ---------- anchor bar ---------- */
.anchor-bar{position:sticky;top:64px;z-index:40;background:var(--paper);border-bottom:1px solid var(--line)}
@media (min-width:768px){.anchor-bar{top:72px}}
.anchor-scroll{display:flex;gap:10px;overflow-x:auto;padding-top:14px;padding-bottom:14px;scrollbar-width:none}
.anchor-scroll::-webkit-scrollbar{display:none}
.chip{flex:none;display:inline-flex;align-items:center;height:40px;padding:0 18px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:14px;transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease)}
.chip:hover{border-color:var(--ink);transform:translateY(-1px);box-shadow:var(--shadow-1)}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:88px 0}}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{margin-top:16px;font-size:28px}
@media (min-width:768px){.section-head h2{font-size:34px}}
.section-sub{margin-top:14px;color:var(--muted);font-size:16px}

/* ---------- numbered list ---------- */
.rank-list{border-bottom:1px solid var(--line)}
.rank-row{display:grid;grid-template-columns:44px 1fr 28px;align-items:center;gap:14px;min-height:88px;padding:20px 10px;border-top:1px solid var(--line);transition:background .2s var(--ease),padding-left .2s var(--ease)}
@media (min-width:768px){.rank-row{grid-template-columns:72px 1fr 40px;gap:24px;min-height:100px;padding:22px 16px}}
.rank-row:hover{background:var(--surface);padding-left:20px}
@media (min-width:768px){.rank-row:hover{padding-left:26px}}
.rank-num{font-size:24px;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.02em;transition:color .2s var(--ease)}
@media (min-width:768px){.rank-num{font-size:32px}}
.rank-row:hover .rank-num{color:var(--ink)}
.rank-title{display:block;font-size:17px;font-weight:700;line-height:1.5}
@media (min-width:768px){.rank-title{font-size:19px}}
.rank-desc{display:block;margin-top:6px;font-size:14px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-arrow{display:flex;justify-content:flex-end;color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease)}
.rank-row:hover .rank-arrow{transform:translateX(4px);color:var(--ink)}

/* ---------- project grid ---------- */
.project-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.project-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.project-grid{grid-template-columns:repeat(3,1fr)}}
.project-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.project-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(11,13,12,.2)}
.project-icon{display:flex;width:44px;height:44px;align-items:center;justify-content:center;border-radius:12px;background:var(--ink);color:var(--accent);margin-bottom:18px}
.project-card h3{font-size:20px;font-weight:700}
.project-card p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.75}
.project-more{display:inline-block;margin-top:18px;font-size:14px;font-weight:500;border-bottom:2px solid var(--accent);padding-bottom:2px}

/* ---------- dark stats ---------- */
.dark{background-color:var(--ink);background-image:linear-gradient(rgba(11,13,12,.93),rgba(11,13,12,.97)),url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;color:#EDEFE9}
.dark .eyebrow{color:#8B918A}
.dark .eyebrow::before{background:var(--accent)}
.dark .section-head h2{color:#FFFFFF}
.dark .section-sub{color:#A9AFA7}
.stat-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--ink-soft);border:1px solid var(--ink-soft);border-radius:var(--radius-card);overflow:hidden}
@media (min-width:640px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--ink);padding:28px 24px}
.stat-num{display:block;font-size:28px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--accent);letter-spacing:-.01em;line-height:1.2}
.stat-label{margin-top:10px;font-size:14px;line-height:1.7;color:#A9AFA7}

/* ---------- timeline ---------- */
.timeline{position:relative;border-left:1px solid var(--line);padding-left:26px;margin-left:6px}
@media (min-width:768px){.timeline{padding-left:38px;margin-left:10px}}
.timeline li{position:relative;padding-bottom:34px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-31px;top:8px;width:9px;height:9px;border-radius:50%;background:var(--surface);border:1.5px solid var(--ink)}
@media (min-width:768px){.timeline li::before{left:-43px}}
.tl-time{display:inline-block;font-size:13px;font-weight:700;color:var(--ink);background:var(--accent);border-radius:999px;padding:3px 12px;font-variant-numeric:tabular-nums}
.timeline h3{margin-top:14px;font-size:20px}
.timeline p{margin-top:10px;font-size:15px;color:var(--muted);max-width:68ch}

/* ---------- subscribe ---------- */
.section-subscribe{background:var(--surface);border-top:1px solid var(--line)}
.subscribe-inner{max-width:560px;margin:0 auto;text-align:center}
.subscribe-inner h2{font-size:28px}
@media (min-width:768px){.subscribe-inner h2{font-size:34px}}
.subscribe-inner p{margin-top:14px;color:var(--muted);font-size:16px}
.subscribe-form{display:grid;grid-template-columns:1fr;gap:12px;margin-top:26px}
@media (min-width:640px){.subscribe-form{grid-template-columns:1fr auto}}
.subscribe-input{height:52px;width:100%;border:1px solid var(--line);border-radius:var(--radius-input);background:var(--paper);padding:0 18px;font-size:15px;outline:none;transition:border-color .2s var(--ease),background .2s var(--ease)}
.subscribe-input:focus{border-color:var(--ink);background:#fff}
.form-note{margin-top:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-input);padding:12px 16px;font-size:14px;color:var(--muted)}

/* ---------- faq ---------- */
.faq-list{max-width:820px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;font-size:17px;font-weight:600;line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:none;color:var(--muted);transition:transform .24s var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{max-width:720px;padding:0 0 24px;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#EDEFE9;padding:72px 0}
.cta-band h2{color:#FFFFFF;font-size:28px;max-width:22ch}
@media (min-width:768px){.cta-band h2{font-size:34px}}
.cta-band p{margin-top:16px;color:#A9AFA7;max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:30px}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#A9AFA7}
.site-footer a{transition:color .18s var(--ease)}
.site-footer a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid #232724;margin-top:44px;padding-top:22px;padding-bottom:28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#7F857E}
.md-grid-4{grid-template-columns:repeat(1,1fr)}