/* roulang page: index */
:root{
  --ink:#101C19;
  --ink-2:#1D302B;
  --paper:#F7F4EC;
  --paper-2:#EFE9DD;
  --line:#DBD4C4;
  --accent:#E2552B;
  --accent-dark:#C94822;
  --accent-2:#2E6B5E;
  --muted:#6B7570;
  --radius:10px;
  --radius-sm:8px;
  --shadow-hover:0 18px 40px -28px rgba(16,28,25,.5);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bs-primary:#E2552B;
  --bs-body-bg:#F7F4EC;
  --bs-body-color:#101C19;
  --bs-border-color:#DBD4C4;
  --bs-link-color:#101C19;
  --bs-link-hover-color:#E2552B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,h5,p,ul,ol,figure,dl{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:rgba(226,85,43,.2)}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1280px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(247,244,236,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -28px rgba(16,28,25,.75)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:flex;flex-direction:column;justify-content:center;line-height:1.1}
.logo-main{font-size:17px;font-weight:700;letter-spacing:.01em}
.logo-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.header-actions{display:flex;align-items:center;gap:10px}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:44px;height:44px;padding:0 14px;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.menu-btn:hover{border-color:var(--ink);background:rgba(16,28,25,.04)}
.menu-icon{position:relative;width:16px;height:12px;display:inline-block}
.menu-icon i{position:absolute;left:0;width:100%;height:1.5px;background:currentColor;transition:transform .22s ease,opacity .16s ease}
.menu-icon i:nth-child(1){top:0}
.menu-icon i:nth-child(2){top:5px}
.menu-icon i:nth-child(3){top:10px}

/* ---------- Drawer ---------- */
.drawer-overlay{
  position:fixed;inset:0;z-index:1000;background:rgba(16,28,25,.58);
  opacity:0;visibility:hidden;transition:opacity .16s ease,visibility .16s ease;
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:1001;
  width:min(1040px,94vw);height:100%;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;
  overflow-y:auto;overscroll-behavior:contain;
}
.drawer.open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 28px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--paper);z-index:2;
}
.drawer-head .logo-main{font-size:15px}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  cursor:pointer;color:var(--ink);font-size:18px;line-height:1;
  transition:background .18s ease,border-color .18s ease;
}
.drawer-close:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.drawer-body{display:grid;grid-template-columns:1.35fr 1fr;gap:0;flex:1;min-height:0}
.drawer-nav{padding:28px 28px 40px;border-right:1px solid var(--line)}
.drawer-nav-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;margin-bottom:18px}
.drawer-link{
  display:flex;align-items:baseline;gap:16px;
  padding:16px 0 16px 14px;border-bottom:1px solid var(--line);
  border-left:2px solid transparent;
  transition:border-color .18s ease,color .18s ease,padding-left .18s ease;
  position:relative;
}
.drawer-link .idx{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.1em;min-width:22px}
.drawer-link .name{font-size:22px;font-weight:600;letter-spacing:-.01em;position:relative}
.drawer-link .name::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1.5px;width:0;background:var(--accent);
  transition:width .22s ease;
}
.drawer-link:hover .name::after{width:100%}
.drawer-link:hover .name{color:var(--ink)}
.drawer-link.active{border-left-color:var(--accent)}
.drawer-link.active .name{color:var(--ink)}
.drawer-link.active .idx{color:var(--accent)}
.drawer-aside{padding:28px 28px 40px;background:var(--paper-2);display:flex;flex-direction:column;gap:26px}
.drawer-aside h4{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin-bottom:10px}
.drawer-aside p{font-size:14px;line-height:1.75;color:var(--muted)}
.search-box{display:flex;gap:8px}
.search-box input{
  flex:1;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--paper);color:var(--ink);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 2px rgba(226,85,43,.35)}
.search-box button{
  height:44px;padding:0 16px;border:none;border-radius:var(--radius-sm);
  background:var(--ink);color:var(--paper);font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s ease;
}
.search-box button:hover{background:var(--accent)}
.qr-slot{
  width:132px;height:132px;border:1px dashed var(--line);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;background:var(--paper);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--muted);text-align:center;line-height:1.6;
}
.aside-meta{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em;line-height:2}
@media (max-width:992px){
  .drawer{width:100vw;border-left:none}
  .drawer-body{grid-template-columns:1fr}
  .drawer-nav{border-right:none;border-bottom:1px solid var(--line)}
  .drawer-link .name{font-size:20px}
}

/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-x.primary{background:var(--accent);color:#fff}
.btn-x.primary:hover{background:var(--accent-dark);transform:translateY(-1px);color:#fff}
.btn-x.ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-x.ghost:hover{background:var(--ink);color:var(--paper)}
.btn-x.sm{height:40px;padding:0 16px;font-size:14px}
.on-dark .btn-x.ghost{border-color:rgba(247,244,236,.45);color:var(--paper)}
.on-dark .btn-x.ghost:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.header-cta{display:none}
@media (min-width:768px){.header-cta{display:inline-flex}}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--ink-2)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.62}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(16,28,25,.94) 0%,rgba(16,28,25,.82) 46%,rgba(16,28,25,.5) 100%);
}
.hero-grid{
  position:absolute;inset:0;pointer-events:none;opacity:.07;
  background-image:linear-gradient(rgba(247,244,236,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(247,244,236,.9) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-inner{position:relative;z-index:2;padding:88px 0 72px;color:var(--paper)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:rgba(247,244,236,.78);margin-bottom:22px;
}
.hero-eyebrow::before{content:"";width:26px;height:1px;background:var(--accent)}
h1.hero-title{
  font-size:clamp(2.1rem,5.2vw,3.7rem);
  font-weight:700;line-height:1.1;letter-spacing:-.02em;
  max-width:16em;color:var(--paper);
}
h1.hero-title em{font-style:normal;color:var(--accent)}
.hero-sub{
  margin-top:24px;max-width:660px;
  font-size:16px;line-height:1.95;color:rgba(247,244,236,.8);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.countdown{
  margin-top:40px;display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  padding:16px 20px;border:1px solid rgba(247,244,236,.22);border-radius:var(--radius);
  background:rgba(16,28,25,.42);max-width:760px;
}
.cd-label{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:rgba(247,244,236,.72);text-transform:uppercase}
.cd-clock{display:flex;align-items:center;gap:10px}
.cd-cell{display:flex;align-items:baseline;gap:3px;font-family:var(--font-mono);color:var(--paper)}
.cd-cell b{font-size:22px;font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.cd-cell i{font-style:normal;font-size:11px;color:rgba(247,244,236,.55)}
.cd-sep{color:rgba(247,244,236,.35);font-family:var(--font-mono)}
.cd-note{font-size:12px;color:rgba(247,244,236,.55);margin-left:auto}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  margin-top:46px;border-top:1px solid rgba(247,244,236,.16);max-width:760px;
}
.hero-metric{padding:18px 20px 0 0}
.hero-metric + .hero-metric{border-left:1px solid rgba(247,244,236,.16);padding-left:20px}
.hero-metric b{display:block;font-family:var(--font-mono);font-size:22px;font-weight:600;color:var(--paper);font-variant-numeric:tabular-nums}
.hero-metric span{display:block;font-size:12.5px;color:rgba(247,244,236,.6);margin-top:2px}
@media (max-width:768px){
  .hero-inner{padding:60px 0 52px}
  .hero-metrics{grid-template-columns:1fr;margin-top:34px}
  .hero-metric,.hero-metric + .hero-metric{border-left:none;border-top:1px solid rgba(247,244,236,.16);padding:14px 0 0}
  .hero-metric:first-child{border-top:none}
  .cd-note{margin-left:0;width:100%}
}

/* ---------- Sections ---------- */
.section{padding:96px 0;border-top:1px solid var(--line);position:relative}
.section.alt{background:var(--paper-2)}
.section.dark{background:var(--ink);color:var(--paper);border-top-color:rgba(247,244,236,.14)}
.section.dark .sec-title{color:var(--paper)}
.section.dark .sec-desc{color:rgba(247,244,236,.68)}
.section.dark .sec-num{color:var(--accent)}
.sec-head{margin-bottom:44px;max-width:760px}
.sec-num{
  display:block;font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;
  color:var(--accent);margin-bottom:12px;text-transform:uppercase;
}
.sec-title{font-size:clamp(1.55rem,2.9vw,2.3rem);font-weight:700;line-height:1.2;letter-spacing:-.015em}
.sec-desc{margin-top:14px;font-size:15.5px;color:var(--muted);line-height:1.85}
.sec-head.dual{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;flex-wrap:wrap}
.sec-head.dual .sec-head-text{max-width:720px}

/* ---------- Cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card-x{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;position:relative;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card-x:hover{transform:translateY(-2px);border-color:rgba(16,28,25,.3);box-shadow:var(--shadow-hover)}
.card-x h3{font-size:1.12rem;font-weight:600;line-height:1.45;margin-bottom:10px}
.card-x p{font-size:14.5px;color:var(--muted);line-height:1.8}
.card-x .num{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--accent);
  display:block;margin-bottom:14px;
}
.card-x::after{
  content:"";position:absolute;left:0;top:0;width:26px;height:26px;
  border-left:1px solid var(--line);border-top:1px solid var(--line);
  border-top-left-radius:var(--radius);opacity:.8;pointer-events:none;
}
.dark .card-x,.section.dark .card-x{background:var(--ink-2);border-color:rgba(247,244,236,.14);color:var(--paper)}
.section.dark .card-x h3{color:var(--paper)}
.section.dark .card-x p{color:rgba(247,244,236,.66)}
.section.dark .card-x::after{border-color:rgba(247,244,236,.18)}

/* ---------- Entry matrix ---------- */
.entry-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper)}
.entry-item{
  padding:32px 28px;border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:12px;
  transition:background .18s ease;
}
.entry-item:last-child{border-right:none}
.entry-item:hover{background:var(--paper-2)}
.entry-item .num{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--accent)}
.entry-item h3{font-size:1.25rem;font-weight:600}
.entry-item p{font-size:14px;color:var(--muted);line-height:1.8}
.entry-item .more{
  margin-top:auto;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--ink);
  display:inline-flex;align-items:center;gap:8px;
}
.entry-item:hover .more{color:var(--accent)}
@media (max-width:880px){
  .entry-wall{grid-template-columns:1fr}
  .entry-item{border-right:none;border-bottom:1px solid var(--line)}
  .entry-item:last-child{border-bottom:none}
}

/* ---------- Post cards (CMS) ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{
  display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.post-card:hover{transform:translateY(-2px);border-color:rgba(16,28,25,.3);box-shadow:var(--shadow-hover)}
.post-thumb{position:relative;aspect-ratio:16/10;background:var(--paper-2);overflow:hidden;border-bottom:1px solid var(--line)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge-x{
  align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border:1px solid var(--accent-2);border-radius:999px;
  font-size:12px;letter-spacing:.05em;color:var(--accent-2);background:rgba(46,107,94,.06);
}
.post-card h3{font-size:1.04rem;font-weight:600;line-height:1.55}
.post-card p{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em;
}
.post-meta .read{color:var(--ink)}
.post-card:hover .post-meta .read{color:var(--accent)}

/* list variant */
.post-list{border-top:1px solid var(--line)}
.post-row{
  display:grid;grid-template-columns:88px 1fr auto;gap:22px;align-items:center;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background .18s ease,padding-left .18s ease;
}
.post-row:hover{background:rgba(16,28,25,.035);padding-left:12px}
.post-row .rnum{font-family:var(--font-mono);font-size:13px;color:var(--muted);letter-spacing:.1em}
.post-row h3{font-size:1.05rem;font-weight:600;line-height:1.5;margin-bottom:6px}
.post-row p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-row .rmeta{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em;white-space:nowrap}
.post-row:hover h3{color:var(--accent)}
@media (max-width:768px){
  .post-row{grid-template-columns:1fr;gap:8px}
  .post-row .rnum{display:none}
}

/* topics */
.topic-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:22px}
.topic-card{
  position:relative;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--paper);display:flex;flex-direction:column;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.topic-card:hover{transform:translateY(-2px);border-color:rgba(16,28,25,.3);box-shadow:var(--shadow-hover)}
.topic-cover{aspect-ratio:16/9;background:var(--paper-2);overflow:hidden;border-bottom:1px solid var(--line)}
.topic-card.featured .topic-cover{aspect-ratio:16/8}
.topic-cover img{width:100%;height:100%;object-fit:cover}
.topic-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.topic-body h3{font-size:1.15rem;font-weight:600;line-height:1.5}
.topic-card.featured .topic-body h3{font-size:1.4rem}
.topic-body p{font-size:14px;color:var(--muted);line-height:1.8}
.topic-link{margin-top:auto;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--ink)}
.topic-card:hover .topic-link{color:var(--accent)}
@media (max-width:992px){.topic-grid{grid-template-columns:1fr 1fr}.topic-card.featured{grid-column:1 / -1}}
@media (max-width:640px){.topic-grid{grid-template-columns:1fr}}

/* ---------- Empty state ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);background:var(--paper-2);
  padding:56px 24px;text-align:center;
}
.empty-state .mono{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;display:block;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--muted)}
.empty-state a{color:var(--accent);border-bottom:1px solid var(--accent)}

/* ---------- Stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(247,244,236,.16)}
.stat-cell{padding:30px 24px 0 0}
.stat-cell + .stat-cell{border-left:1px solid rgba(247,244,236,.16);padding-left:24px}
.stat-cell b{
  display:block;font-family:var(--font-mono);font-size:clamp(2rem,4vw,3rem);
  font-weight:600;line-height:1;letter-spacing:-.01em;font-variant-numeric:tabular-nums;color:var(--paper);
}
.stat-cell b span{font-size:.5em;color:var(--accent);margin-left:4px}
.stat-cell h3{font-size:14px;font-weight:600;color:rgba(247,244,236,.86);margin-top:14px}
.stat-cell p{font-size:12.5px;color:rgba(247,244,236,.5);margin-top:6px;line-height:1.7}
.stat-foot{
  margin-top:38px;padding-top:16px;border-top:1px solid rgba(247,244,236,.16);
  font-family:var(--font-mono);font-size:12px;color:rgba(247,244,236,.5);letter-spacing:.05em;
}
@media (max-width:992px){
  .stat-grid{grid-template-columns:1fr 1fr}
  .stat-cell,.stat-cell + .stat-cell{padding:24px 20px 0 0;border-left:none}
  .stat-cell:nth-child(even){border-left:1px solid rgba(247,244,236,.16);padding-left:20px}
  .stat-cell:nth-child(3),.stat-cell:nth-child(4){border-top:1px solid rgba(247,244,236,.16);margin-top:24px}
}

/* ---------- Testimonials ---------- */
.quote-card{position:relative;padding-top:34px}
.quote-card::before{content:"";position:absolute;top:0;left:0;width:34px;height:2px;background:var(--accent)}
.quote-card p{font-size:15px;color:var(--ink);line-height:1.9}
.quote-who{display:flex;align-items:center;gap:10px;margin-top:18px;font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em}
.quote-who .dot{width:5px;height:5px;border-radius:50%;background:var(--accent-2)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px}
.step{position:relative;padding:34px 24px 0 0}
.step::before{
  content:"";position:absolute;top:9px;left:0;right:0;height:1px;background:var(--line);
}
.step::after{
  content:"";position:absolute;top:4px;left:0;width:11px;height:11px;border-radius:50%;
  background:var(--paper);border:2px solid var(--accent);
}
.step .sn{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--accent);display:block;margin-top:14px;margin-bottom:8px}
.step h3{font-size:1.05rem;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}
@media (max-width:880px){
  .steps{grid-template-columns:1fr}
  .step{padding:0 0 0 26px;margin-bottom:26px}
  .step::before{top:0;bottom:0;left:5px;right:auto;width:1px;height:auto}
  .step::after{top:6px;left:0}
  .step .sn{margin-top:0}
}

/* ---------- Scenario matrix ---------- */
.matrix{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper);
}
.matrix-cell{padding:28px 24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.matrix-cell:nth-child(3n){border-right:none}
.matrix-cell:nth-child(n+4){border-bottom:none}
.matrix-cell h3{font-size:1.02rem;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.matrix-cell h3 .mk{width:6px;height:6px;background:var(--accent-2);display:inline-block;border-radius:1px}
.matrix-cell p{font-size:13.8px;color:var(--muted);line-height:1.8}
@media (max-width:880px){
  .matrix{grid-template-columns:1fr 1fr}
  .matrix-cell:nth-child(3n){border-right:1px solid var(--line)}
  .matrix-cell:nth-child(2n){border-right:none}
  .matrix-cell:nth-child(n+4){border-bottom:1px solid var(--line)}
  .matrix-cell:nth-child(n+5){border-bottom:none}
}
@media (max-width:560px){
  .matrix{grid-template-columns:1fr}
  .matrix-cell{border-right:none !important;border-bottom:1px solid var(--line) !important}
  .matrix-cell:last-child{border-bottom:none !important}
}

/* ---------- Safety / progress ---------- */
.safety-wrap{display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:start}
.bar-item{margin-bottom:26px}
.bar-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px}
.bar-top b{font-size:14.5px;font-weight:600}
.bar-top span{font-family:var(--font-mono);font-size:13px;color:var(--accent-2);font-variant-numeric:tabular-nums}
.bar-track{height:6px;background:rgba(16,28,25,.08);border-radius:999px;overflow:hidden}
.bar-fill{height:100%;background:var(--accent-2);border-radius:999px;width:0;transition:width 1.1s cubic-bezier(.22,.61,.36,1)}
.bar-note{font-size:12.5px;color:var(--muted);margin-top:8px}
.kv-list{border-top:1px solid var(--line)}
.kv-row{display:flex;align-items:baseline;justify-content:space-between;gap:18px;padding:16px 0;border-bottom:1px solid var(--line)}
.kv-row dt{font-size:14px;color:var(--muted)}
.kv-row dd{font-family:var(--font-mono);font-size:15px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
@media (max-width:880px){.safety-wrap{grid-template-columns:1fr;gap:36px}}

/* ---------- City tags ---------- */
.city-cloud{display:flex;flex-wrap:wrap;gap:10px}
.city-tag{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;background:var(--paper);
  font-size:14px;color:var(--ink);transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.city-tag:hover{border-color:var(--accent);color:var(--accent)}
.city-note{margin-top:22px;font-family:var(--font-mono);font-size:12.5px;color:var(--muted);letter-spacing:.03em;line-height:1.9}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;line-height:1.6;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent)}
.faq-item summary .pm{
  flex:0 0 auto;width:22px;height:22px;border:1px solid var(--line);border-radius:4px;
  position:relative;transition:border-color .18s ease,transform .22s ease;
}
.faq-item summary .pm::before,
.faq-item summary .pm::after{
  content:"";position:absolute;background:var(--ink);transition:transform .22s ease,opacity .18s ease;
}
.faq-item summary .pm::before{top:50%;left:5px;right:5px;height:1.5px;transform:translateY(-50%)}
.faq-item summary .pm::after{left:50%;top:5px;bottom:5px;width:1.5px;transform:translateX(-50%)}
.faq-item[open] summary .pm::after{opacity:0}
.faq-item[open] summary .pm{border-color:var(--accent)}
.faq-item[open] summary{color:var(--accent)}
.faq-answer{padding:0 4px 24px;font-size:15px;color:var(--muted);line-height:1.9;max-width:78ch;animation:fadeIn .18s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- Contact / CTA ---------- */
.cta-block{
  display:grid;grid-template-columns:1.4fr .8fr;gap:48px;align-items:center;
  border:1px solid rgba(247,244,236,.18);border-radius:var(--radius);
  padding:52px;background:var(--ink-2);
}
.cta-block h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:700;line-height:1.22;color:var(--paper);letter-spacing:-.015em}
.cta-block p{margin-top:14px;font-size:15.5px;color:rgba(247,244,236,.7);line-height:1.9;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cta-side{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.qr-dark{
  width:148px;height:148px;border:1px dashed rgba(247,244,236,.3);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:rgba(247,244,236,.55);line-height:1.6;
}
.cta-side .mono{font-family:var(--font-mono);font-size:12px;color:rgba(247,244,236,.55);letter-spacing:.05em;line-height:1.9}
@media (max-width:880px){.cta-block{grid-template-columns:1fr;padding:34px 24px;gap:32px}}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,236,.72);padding:72px 0 0;border-top:1px solid rgba(247,244,236,.14)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .logo-main{color:var(--paper);font-size:18px}
.footer-brand .logo-sub{color:rgba(247,244,236,.45)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(247,244,236,.6);max-width:34ch}
.footer-col h4{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(247,244,236,.45);margin-bottom:18px;
}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:rgba(247,244,236,.78);transition:color .18s ease}
.footer-col a:hover{color:var(--accent)}
.footer-contact{font-size:14px;line-height:2;color:rgba(247,244,236,.7)}
.footer-qr{
  margin-top:16px;width:120px;height:120px;border:1px dashed rgba(247,244,236,.28);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;color:rgba(247,244,236,.45);line-height:1.6;
}
.footer-tags{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:44px;padding-top:26px;border-top:1px solid rgba(247,244,236,.14);
}
.footer-tags span{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border:1px solid rgba(247,244,236,.18);border-radius:999px;
  font-size:12px;color:rgba(247,244,236,.6);letter-spacing:.04em;
}
.footer-bottom{
  margin-top:26px;padding:20px 0 30px;border-top:1px solid rgba(247,244,236,.14);
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:rgba(247,244,236,.42);
}
.footer-bottom a{color:rgba(247,244,236,.6)}
.footer-bottom a:hover{color:var(--accent)}
@media (max-width:992px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ---------- Responsive grids ---------- */
@media (max-width:992px){
  .grid-3,.post-grid{grid-template-columns:1fr 1fr}
  .grid-4{grid-template-columns:1fr 1fr}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .grid-3,.grid-2,.grid-4,.post-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .wrap{padding:0 20px}
  body{font-size:16px}
  .sec-head{margin-bottom:32px}
  .btn-x{height:44px;padding:0 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .bar-fill{transition:none !important}
}

/* roulang page: category1 */
:root{
  --ink:#101C19;
  --ink-2:#1D302B;
  --paper:#F7F4EC;
  --paper-2:#EFE9DD;
  --line:#DBD4C4;
  --accent:#E2552B;
  --accent-dark:#C94822;
  --accent-2:#2E6B5E;
  --muted:#6B7570;
  --radius:10px;
  --radius-sm:8px;
  --shadow-hover:0 18px 40px -28px rgba(16,28,25,.5);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bs-primary:#E2552B;
  --bs-body-bg:#F7F4EC;
  --bs-body-color:#101C19;
  --bs-border-color:#DBD4C4;
  --bs-link-color:#101C19;
  --bs-link-hover-color:#E2552B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(247,244,236,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -28px rgba(16,28,25,.75)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:flex;flex-direction:column;justify-content:center;line-height:1.1}
.logo-main{font-size:17px;font-weight:700;letter-spacing:.01em}
.logo-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.header-actions{display:flex;align-items:center;gap:10px}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:44px;height:44px;padding:0 14px;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.menu-btn:hover{border-color:var(--ink);background:rgba(16,28,25,.04)}
.menu-icon{position:relative;width:16px;height:12px;display:inline-block}
.menu-icon i{position:absolute;left:0;width:100%;height:1.5px;background:currentColor;transition:transform .22s ease,opacity .16s ease}
.menu-icon i:nth-child(1){top:0}
.menu-icon i:nth-child(2){top:5px}
.menu-icon i:nth-child(3){top:10px}
.menu-btn[aria-expanded="true"] .menu-icon i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.menu-btn[aria-expanded="true"] .menu-icon i:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] .menu-icon i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn-x.primary{background:var(--accent);color:#fff}
.btn-x.primary:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn-x.ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-x.ghost:hover{background:var(--ink);color:var(--paper)}
.btn-x.sm{height:38px;padding:0 14px;font-size:14px}
@media(max-width:576px){.header-cta{display:none}}

/* ---------- Drawer ---------- */
.drawer-overlay{
  position:fixed;inset:0;z-index:1000;background:rgba(16,28,25,.58);
  opacity:0;visibility:hidden;transition:opacity .16s ease,visibility .16s ease;
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:1001;
  width:min(1040px,94vw);height:100%;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;
  overflow-y:auto;overscroll-behavior:contain;
}
.drawer.open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 28px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:var(--paper);z-index:2;
}
.drawer-head .logo-main{font-size:15px}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  cursor:pointer;color:var(--ink);font-size:18px;line-height:1;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.drawer-close:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.drawer-body{display:grid;grid-template-columns:1.35fr 1fr;flex:1;min-height:0}
.drawer-nav{padding:28px 28px 40px;border-right:1px solid var(--line)}
.drawer-nav-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;margin-bottom:18px}
.drawer-link{
  display:flex;align-items:baseline;gap:16px;
  padding:16px 0 16px 14px;border-bottom:1px solid var(--line);
  border-left:2px solid transparent;
  transition:border-color .18s ease,color .18s ease;
}
.drawer-link .idx{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.1em;min-width:22px}
.drawer-link .name{font-size:22px;font-weight:600;letter-spacing:-.01em;position:relative}
.drawer-link .name::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1.5px;width:0;background:var(--accent);
  transition:width .22s ease;
}
.drawer-link:hover .name::after{width:100%}
.drawer-link.active{border-left-color:var(--accent)}
.drawer-link.active .name{color:var(--ink)}
.drawer-link.active .idx{color:var(--accent)}
.drawer-aside{padding:28px 28px 40px;background:var(--paper-2);display:flex;flex-direction:column;gap:26px}
.drawer-aside h4{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin-bottom:10px}
.drawer-aside p{font-size:14px;line-height:1.75;color:var(--muted)}
.search-box{display:flex;gap:8px}
.search-box input{
  flex:1;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--paper);color:var(--ink);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 2px rgba(226,85,43,.35)}
.search-box button{
  height:44px;padding:0 16px;border:none;border-radius:var(--radius-sm);
  background:var(--ink);color:var(--paper);font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s ease;
}
.search-box button:hover{background:var(--accent)}
.aside-meta{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em;line-height:2}
.qr-slot{
  border:1px dashed var(--line);border-radius:var(--radius-sm);background:var(--paper);
  padding:22px 12px;text-align:center;font-family:var(--font-mono);
  font-size:11px;letter-spacing:.14em;color:var(--muted);
}

/* ---------- Section base ---------- */
.section{padding:88px 0;position:relative}
.section.alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--accent);text-transform:uppercase;display:inline-block}
.sec-title{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;line-height:1.16;letter-spacing:-.015em;margin:12px 0 18px}
.sec-desc{color:var(--muted);max-width:62ch;font-size:16px}

/* ---------- C1 Category head ---------- */
.cat-head{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.cat-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(16,28,25,.06) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(16,28,25,.06) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
}
.cat-head .wrap{position:relative;z-index:1}
.cat-grid{display:grid;grid-template-columns:1.55fr .85fr;gap:56px;align-items:end}
.breadcrumb-x{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;
}
.breadcrumb-x a:hover{color:var(--accent)}
.breadcrumb-x .sep{color:var(--line)}
.cat-no{
  display:inline-block;margin-top:22px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  color:var(--accent);border:1px solid var(--accent);border-radius:999px;
  padding:4px 12px;
}
.cat-head h1{
  font-size:clamp(2rem,4.4vw,3.4rem);
  font-weight:700;line-height:1.1;letter-spacing:-.025em;
  margin:16px 0 18px;
}
.cat-lead{max-width:54ch;color:var(--muted);font-size:16.5px;line-height:1.85}
.stat-strip{border-top:1px solid var(--line)}
.stat-strip .row-x{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:14px 0;border-bottom:1px solid var(--line);
}
.stat-strip .k{font-size:13px;color:var(--muted);letter-spacing:.06em}
.stat-strip .v{font-family:var(--font-mono);font-size:15px;font-weight:600;color:var(--ink)}
.stat-note{font-family:var(--font-mono);font-size:11px;color:var(--muted);letter-spacing:.06em;margin-top:14px;line-height:1.8}

/* ---------- C2 split ---------- */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.split p{color:var(--muted);margin-bottom:18px;font-size:16px;line-height:1.9}
.split p strong{color:var(--ink);font-weight:600}
.figure-slot{
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--paper-2);margin-bottom:26px;
}
.figure-slot img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
.figure-cap{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--muted);padding:10px 14px;border-top:1px solid var(--line);background:var(--paper);
}
.point-list{border-top:1px solid var(--line)}
.point-list li{
  display:grid;grid-template-columns:16px 1fr;gap:14px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.point-list li::before{
  content:"";width:2px;height:100%;min-height:34px;background:var(--accent);border-radius:2px;display:block;
}
.point-list .pt{font-weight:600;font-size:15px;display:block;margin-bottom:4px}
.point-list .pd{color:var(--muted);font-size:14px;line-height:1.75}

/* ---------- C3 list layout ---------- */
.list-layout{display:grid;grid-template-columns:1.62fr .88fr;gap:48px;align-items:start}
.list-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  border-bottom:1px solid var(--ink);padding-bottom:12px;
}
.list-head .cnt{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.1em}
.post-row{
  display:grid;grid-template-columns:56px 1fr;gap:20px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.post-row:hover{background:rgba(16,28,25,.025)}
.post-idx{font-family:var(--font-mono);font-size:13px;color:var(--muted);letter-spacing:.08em;padding-top:4px}
.post-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.badge-x{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;
  border:1px solid var(--accent-2);border-radius:999px;
  font-size:11.5px;letter-spacing:.05em;color:var(--accent-2);
}
.meta-time{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);letter-spacing:.06em}
.post-row h3{font-size:1.1rem;font-weight:600;line-height:1.5;letter-spacing:-.005em;margin-bottom:8px}
.post-row h3 a{position:relative;display:inline}
.post-row h3 a::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1.5px;width:0;
  background:var(--accent);transition:width .22s ease;
}
.post-row:hover h3 a::after{width:100%}
.post-row:hover h3 a{color:var(--accent)}
.post-row p{color:var(--muted);font-size:14.5px;line-height:1.8;margin:0}
.list-foot{margin-top:28px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.list-foot .hint{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);letter-spacing:.06em}
.sticky-aside{
  position:sticky;top:88px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--paper);padding:26px 24px;
}
.sticky-aside h3{font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--muted);margin-bottom:16px}
.aside-list li{
  padding:14px 0;border-bottom:1px solid var(--line);
  font-size:14.5px;line-height:1.75;
}
.aside-list li:last-child{border-bottom:none;padding-bottom:0}
.aside-list .t{display:block;font-weight:600;color:var(--ink);margin-bottom:3px}
.aside-list .d{color:var(--muted);font-size:13.5px}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);
  background:var(--paper-2);padding:44px 24px;text-align:center;
}
.empty-state .tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--muted);display:block;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:14.5px}

/* ---------- C4 channels ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{
  display:flex;flex-direction:column;gap:14px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--paper);padding:26px 24px;
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  position:relative;overflow:hidden;
}
.channel-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.channel-card:hover{border-color:rgba(16,28,25,.35);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.channel-card:hover::before{transform:scaleX(1)}
.channel-card .cno{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--muted)}
.channel-card h3{font-size:1.18rem;font-weight:600;letter-spacing:-.01em}
.channel-card p{color:var(--muted);font-size:14.5px;line-height:1.8;margin:0}
.channel-card .cfoot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-family:var(--font-mono);font-size:11.5px;color:var(--muted);letter-spacing:.08em;
}
.channel-card.is-current{border-color:var(--ink)}
.channel-card.is-current .cno{color:var(--accent)}

/* ---------- C5 steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--ink);margin-top:40px}
.step{padding:26px 18px 0 0;position:relative;border-right:1px solid var(--line)}
.step:last-child{border-right:none}
.step::before{
  content:"";position:absolute;top:-4.5px;left:0;
  width:8px;height:8px;border-radius:50%;background:var(--accent);
}
.step .sno{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;color:var(--muted);display:block;margin-bottom:10px}
.step .st{font-size:15.5px;font-weight:600;display:block;margin-bottom:6px;line-height:1.5}
.step .sd{font-size:13.5px;color:var(--muted);line-height:1.75}

/* ---------- C6 data panel ---------- */
.data-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--paper);
}
.data-cell{padding:30px 22px;border-right:1px solid var(--line)}
.data-cell:last-child{border-right:none}
.data-num{
  font-family:var(--font-mono);font-weight:600;letter-spacing:-.01em;
  font-size:clamp(1.8rem,3.4vw,2.6rem);line-height:1.1;color:var(--ink);
}
.data-num span{font-size:.4em;color:var(--muted);margin-left:6px;letter-spacing:.04em}
.data-label{font-size:14px;font-weight:600;margin-top:10px}
.data-note{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:6px}

/* ---------- C7 FAQ ---------- */
.faq-item{border-top:1px solid var(--line)}
.faq-wrap{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;line-height:1.6;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--accent)}
.faq-ico{
  flex:0 0 auto;width:22px;height:22px;border:1px solid var(--line);border-radius:4px;
  position:relative;transition:transform .22s ease,border-color .18s ease;
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--ink);
  transform:translate(-50%,-50%);transition:opacity .18s ease,background .18s ease;
}
.faq-ico::before{width:10px;height:1.5px}
.faq-ico::after{width:1.5px;height:10px}
.faq-q[aria-expanded="true"] .faq-ico{border-color:var(--accent)}
.faq-q[aria-expanded="true"] .faq-ico::before,
.faq-q[aria-expanded="true"] .faq-ico::after{background:var(--accent)}
.faq-q[aria-expanded="true"] .faq-ico::after{opacity:0}
.faq-a{color:var(--muted);font-size:15px;line-height:1.9;max-width:74ch;padding:0 40px 24px 0}

/* ---------- C8 reading + cta ---------- */
.reading-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.reading-card{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);
  padding:22px;display:flex;flex-direction:column;gap:10px;
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.reading-card:hover{border-color:rgba(16,28,25,.35);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.reading-card .rdate{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.reading-card h3{font-size:1rem;font-weight:600;line-height:1.6}
.reading-card p{color:var(--muted);font-size:14px;line-height:1.75;margin:0}
.cta-bar{
  margin-top:44px;background:var(--ink);color:var(--paper);
  border-radius:var(--radius);padding:36px 34px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-bar h3{font-size:clamp(1.3rem,2.4vw,1.75rem);font-weight:700;letter-spacing:-.015em;line-height:1.3}
.cta-bar p{color:rgba(247,244,236,.72);font-size:14.5px;margin-top:8px;max-width:52ch}
.cta-bar .actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-x.on-ink{background:var(--accent);color:#fff}
.btn-x.on-ink:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn-x.line-ink{background:transparent;border-color:rgba(247,244,236,.45);color:var(--paper)}
.btn-x.line-ink:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,236,.78);padding:72px 0 32px;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .logo-main{color:var(--paper);font-size:17px;font-weight:700;display:block}
.footer-brand .logo-sub{color:rgba(247,244,236,.5);display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;margin-top:4px}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:16px;color:rgba(247,244,236,.68);max-width:36ch}
.footer-col h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:rgba(247,244,236,.5);margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14.5px;color:rgba(247,244,236,.8);transition:color .18s ease}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact{font-size:14px;line-height:2;color:rgba(247,244,236,.72)}
.footer-qr{
  margin-top:14px;border:1px dashed rgba(247,244,236,.28);border-radius:var(--radius-sm);
  padding:18px 12px;text-align:center;font-family:var(--font-mono);
  font-size:11px;letter-spacing:.14em;color:rgba(247,244,236,.55);line-height:1.9;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:24px;border-top:1px solid rgba(247,244,236,.14)}
.footer-tags span{
  font-size:12.5px;letter-spacing:.05em;color:rgba(247,244,236,.62);
  border:1px solid rgba(247,244,236,.2);border-radius:999px;padding:4px 12px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  margin-top:28px;padding-top:20px;border-top:1px solid rgba(247,244,236,.14);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:rgba(247,244,236,.5);
}

/* ---------- Responsive ---------- */
@media(max-width:1200px){
  .cat-grid,.split,.list-layout{gap:40px}
}
@media(max-width:992px){
  .section{padding:64px 0}
  .cat-head{padding:48px 0 40px}
  .cat-grid{grid-template-columns:1fr;gap:32px;align-items:start}
  .split{grid-template-columns:1fr;gap:36px}
  .list-layout{grid-template-columns:1fr;gap:36px}
  .sticky-aside{position:static}
  .channel-grid{grid-template-columns:1fr 1fr}
  .reading-grid{grid-template-columns:1fr 1fr}
  .data-grid{grid-template-columns:1fr 1fr}
  .data-cell:nth-child(2){border-right:none}
  .data-cell:nth-child(1),.data-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .steps{grid-template-columns:1fr;border-top:none;margin-top:28px}
  .step{border-right:none;border-top:1px solid var(--line);padding:22px 0 0 22px}
  .step::before{top:24px;left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .drawer{width:100vw;border-left:none}
  .drawer-body{grid-template-columns:1fr}
  .drawer-nav{border-right:none;border-bottom:1px solid var(--line)}
}
@media(max-width:768px){
  .wrap{padding:0 20px}
  .section{padding:56px 0}
  .cat-head h1{font-size:2.25rem}
  .channel-grid,.reading-grid{grid-template-columns:1fr}
  .data-grid{grid-template-columns:1fr}
  .data-cell{border-right:none;border-bottom:1px solid var(--line)}
  .data-cell:last-child{border-bottom:none}
  .post-row{grid-template-columns:1fr;gap:8px}
  .post-idx{padding-top:0}
  .faq-a{padding-right:0}
  .cta-bar{padding:28px 24px}
  .drawer-link .name{font-size:19px}
  .drawer-head,.drawer-nav,.drawer-aside{padding-left:20px;padding-right:20px}
}
@media(max-width:520px){
  body{font-size:16px}
  .logo-main{font-size:15px}
  .logo-sub{font-size:9px;letter-spacing:.14em}
  .cat-head h1{font-size:1.95rem}
  .footer-grid{grid-template-columns:1fr}
  .btn-x{width:100%}
  .header-actions .btn-x{width:auto}
  .list-foot .btn-x{width:100%}
  .cta-bar .actions{width:100%}
  .cta-bar .actions .btn-x{width:100%}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink:#101C19;
  --ink-2:#1D302B;
  --paper:#F7F4EC;
  --paper-2:#EFE9DD;
  --line:#DBD4C4;
  --accent:#E2552B;
  --accent-dark:#C94822;
  --accent-2:#2E6B5E;
  --muted:#6B7570;
  --radius:10px;
  --radius-sm:8px;
  --shadow-hover:0 18px 40px -28px rgba(16,28,25,.5);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bs-primary:#E2552B;
  --bs-body-bg:#F7F4EC;
  --bs-body-color:#101C19;
  --bs-border-color:#DBD4C4;
  --bs-link-color:#101C19;
  --bs-link-hover-color:#E2552B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.18;letter-spacing:-.02em}
p{margin:0 0 1em}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--font-mono);letter-spacing:.06em}

/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-x.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-x.primary:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-x.ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-x.ghost:hover{background:var(--ink);color:var(--paper)}
.btn-x.sm{height:40px;padding:0 16px;font-size:14px}

/* ---------- Badges ---------- */
.badge-x{
  display:inline-flex;align-items:center;height:27px;padding:0 12px;
  border-radius:999px;border:1px solid var(--line);
  font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--muted);
  background:transparent;
}
.badge-x.accent{border-color:var(--accent);color:var(--accent)}
.badge-x.teal{border-color:var(--accent-2);color:var(--accent-2)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(247,244,236,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -28px rgba(16,28,25,.75)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:flex;flex-direction:column;justify-content:center;line-height:1.1}
.logo-main{font-size:17px;font-weight:700;letter-spacing:.01em}
.logo-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.header-actions{display:flex;align-items:center;gap:10px}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:44px;height:44px;padding:0 14px;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.menu-btn:hover{border-color:var(--ink);background:rgba(16,28,25,.04)}
.menu-icon{position:relative;width:16px;height:12px;display:inline-block}
.menu-icon i{position:absolute;left:0;width:100%;height:1.5px;background:currentColor;transition:transform .22s ease,opacity .16s ease}
.menu-icon i:nth-child(1){top:0}
.menu-icon i:nth-child(2){top:5px}
.menu-icon i:nth-child(3){top:10px}
.menu-btn[aria-expanded="true"] .menu-icon i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.menu-btn[aria-expanded="true"] .menu-icon i:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] .menu-icon i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- Drawer ---------- */
.drawer-overlay{
  position:fixed;inset:0;z-index:1000;background:rgba(16,28,25,.58);
  opacity:0;visibility:hidden;transition:opacity .16s ease,visibility .16s ease;
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:1001;
  width:min(1040px,96vw);height:100%;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;
  overflow-y:auto;overscroll-behavior:contain;
}
.drawer.open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 28px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:var(--paper);z-index:2;
}
.drawer-head .logo-main{font-size:15px}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  cursor:pointer;color:var(--ink);font-size:16px;line-height:1;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.drawer-close:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.drawer-body{display:grid;grid-template-columns:1.35fr 1fr;gap:0;flex:1;min-height:0}
.drawer-nav{padding:28px 28px 40px;border-right:1px solid var(--line)}
.drawer-nav-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;margin-bottom:18px}
.drawer-link{
  display:flex;align-items:baseline;gap:16px;
  padding:16px 0 16px 14px;border-bottom:1px solid var(--line);
  border-left:2px solid transparent;
  transition:border-color .18s ease,padding-left .18s ease;
}
.drawer-link .idx{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.1em;min-width:22px}
.drawer-link .name{font-size:22px;font-weight:600;letter-spacing:-.01em;position:relative}
.drawer-link .name::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1.5px;width:0;background:var(--accent);
  transition:width .22s ease;
}
.drawer-link:hover .name::after{width:100%}
.drawer-link:hover .name{color:var(--ink)}
.drawer-link.active{border-left-color:var(--accent)}
.drawer-link.active .idx{color:var(--accent)}
.drawer-aside{padding:28px 28px 40px;background:var(--paper-2);display:flex;flex-direction:column;gap:26px}
.drawer-aside h4{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin-bottom:10px}
.drawer-aside p{font-size:14px;line-height:1.75;color:var(--muted);margin:0}
.search-box{display:flex;gap:8px}
.search-box input{
  flex:1;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--paper);color:var(--ink);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 2px rgba(226,85,43,.35)}
.search-box button{
  height:44px;padding:0 16px;border:none;border-radius:var(--radius-sm);
  background:var(--ink);color:var(--paper);font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s ease;
}
.search-box button:hover{background:var(--accent)}
.aside-meta{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em;line-height:2}
.footer-qr{
  border:1px dashed var(--line);border-radius:var(--radius-sm);
  padding:18px 12px;text-align:center;font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.12em;color:var(--muted);line-height:1.9;
  background:rgba(247,244,236,.5);
}

/* ---------- Section base ---------- */
.section{padding:88px 0;border-top:1px solid var(--line)}
.section.tint{background:var(--paper-2)}
.section-head{max-width:720px;margin-bottom:44px}
.section-kicker{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  color:var(--accent);text-transform:uppercase;margin-bottom:14px;display:block;
}
.section-head h2{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.16;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}

/* ---------- Article hero ---------- */
.article-hero{position:relative;padding:48px 0 60px;background:var(--paper);border-bottom:1px solid var(--line);overflow:hidden}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(16,28,25,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(16,28,25,.055) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse at 30% 20%,#000 0%,transparent 78%);
  mask-image:radial-gradient(ellipse at 30% 20%,#000 0%,transparent 78%);
}
.article-hero > .wrap{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;color:var(--muted);margin-bottom:26px}
.crumb a:hover{color:var(--accent)}
.crumb .sep{opacity:.5}
.crumb .cur{color:var(--ink)}
.article-title{font-size:clamp(1.75rem,4vw,2.9rem);line-height:1.16;margin:18px 0 16px;max-width:24ch}
.article-lead{color:var(--muted);font-size:16px;line-height:1.85;max-width:62ch;margin:0}
.meta-line{display:flex;flex-wrap:wrap;gap:18px;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.05em;color:var(--muted);margin-top:24px}
.meta-line span{position:relative;padding-left:13px}
.meta-line span::before{content:"";position:absolute;left:0;top:50%;width:5px;height:5px;background:var(--accent);transform:translateY(-50%) rotate(45deg)}
.share-box{border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;background:rgba(239,233,221,.75)}
.share-box .label{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--muted);margin-bottom:12px}
.share-row{display:flex;gap:8px;flex-wrap:wrap}
.share-chip{
  height:32px;padding:0 12px;display:inline-flex;align-items:center;
  border:1px solid var(--line);border-radius:999px;font-size:12.5px;color:var(--muted);
  background:var(--paper);transition:border-color .18s ease,color .18s ease;
}
.share-chip:hover{border-color:var(--ink);color:var(--ink)}

/* ---------- Article body ---------- */
.article-body{font-size:16.5px;line-height:1.9;max-width:74ch}
.article-body h2{
  font-size:clamp(1.35rem,2.4vw,1.8rem);margin:2.2em 0 .8em;padding-left:16px;
  position:relative;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:1.05em;
  background:var(--accent);border-radius:2px;
}
.article-body h3{font-size:1.14rem;margin:1.7em 0 .55em;font-weight:600;letter-spacing:0}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body li{margin-bottom:.5em}
.article-body ul li::marker{color:var(--accent)}
.article-body blockquote{
  margin:1.7em 0;padding:18px 24px;background:var(--paper-2);
  border-left:3px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius);border:1px solid var(--line);margin:1.4em 0 .6em}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--muted);line-height:1.7}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;display:block;overflow-x:auto}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--paper-2);font-weight:600;white-space:nowrap}
.article-body a{text-decoration:underline;text-decoration-color:rgba(226,85,43,.55);text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}
.article-body code{font-family:var(--font-mono);font-size:.92em;background:var(--paper-2);padding:1px 6px;border-radius:4px}

/* ---------- TOC ---------- */
.toc-panel{
  position:sticky;top:88px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--paper);padding:20px 20px 16px;
}
.toc-title{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;
  color:var(--muted);margin-bottom:12px;text-transform:uppercase;
}
.toc-toggle{
  display:none;border:1px solid var(--line);background:transparent;border-radius:6px;
  font-size:12px;color:var(--muted);padding:4px 10px;cursor:pointer;letter-spacing:.04em;
}
.toc-list{list-style:none;margin:0;padding:0}
.toc-list li a{
  display:block;padding:9px 0 9px 13px;border-left:2px solid var(--line);
  font-size:14px;line-height:1.6;color:var(--muted);
  transition:color .18s ease,border-color .18s ease,padding-left .18s ease;
}
.toc-list li a:hover{color:var(--ink);border-left-color:var(--accent);padding-left:16px}
@media (min-width:992px){#tocBody.collapse{display:block !important}}

/* ---------- Info panel ---------- */
.info-panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper-2);padding:20px;margin-top:20px}
.info-panel .label{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;color:var(--muted);margin-bottom:14px;text-transform:uppercase}
.kv{margin:0}
.kv > div{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid rgba(219,212,196,.85);font-size:13.5px}
.kv > div:last-child{border-bottom:none}
.kv dt{color:var(--muted);font-weight:400;margin:0}
.kv dd{margin:0;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.03em;text-align:right;color:var(--ink)}

/* ---------- Points strip ---------- */
.point-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper);
}
.point-cell{padding:24px 20px;border-right:1px solid var(--line)}
.point-cell:last-child{border-right:none}
.point-cell .num{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--accent);margin-bottom:10px}
.point-cell h3{font-size:15px;margin-bottom:8px;line-height:1.5}
.point-cell p{font-size:13.5px;color:var(--muted);line-height:1.72;margin:0}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:880px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;line-height:1.6;
}
.faq-btn:hover{color:var(--accent)}
.faq-btn .sign{flex:0 0 20px;width:20px;height:20px;position:relative;border:1px solid var(--line);border-radius:4px}
.faq-btn .sign::before,.faq-btn .sign::after{content:"";position:absolute;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.faq-btn .sign::before{left:4px;right:4px;top:9px;height:1.5px}
.faq-btn .sign::after{top:4px;bottom:4px;left:9px;width:1.5px}
.faq-btn[aria-expanded="true"] .sign::after{transform:scaleY(0)}
.faq-body{padding:0 0 22px;color:var(--muted);font-size:15px;line-height:1.85;max-width:72ch}

/* ---------- Related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel-card{
  display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--paper);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(16,28,25,.28)}
.rel-thumb{
  aspect-ratio:16/9;background:var(--paper-2);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;overflow:hidden;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--muted);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-body{padding:16px 18px 18px}
.rel-body h3{font-size:15.5px;line-height:1.55;margin-bottom:8px;font-weight:600}
.rel-body .date{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--muted)}

/* ---------- Empty ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);background:var(--paper-2);
  padding:46px 24px;text-align:center;
}
.empty-state .mono-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--muted);margin-bottom:12px}
.empty-state h2{font-size:1.25rem;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:14.5px;margin:0 auto 18px;max-width:46ch}

/* ---------- Post nav ---------- */
.postnav{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.postnav-item{
  display:block;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;background:var(--paper);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.postnav-item:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.postnav-item .pn-label{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--muted);margin-bottom:8px}
.postnav-item .pn-title{font-size:15.5px;font-weight:600;line-height:1.5}
.postnav-item.right{text-align:right}

/* ---------- CTA band ---------- */
.cta-band{background:var(--paper-2);border-top:1px solid var(--line);padding:68px 0}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:clamp(1.5rem,2.8vw,2.1rem);margin-bottom:10px}
.cta-inner p{color:var(--muted);margin:0;font-size:15px;max-width:52ch}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#C9CFC9;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .logo-main{color:var(--paper);font-size:16px}
.footer-brand .logo-sub{color:#7E8C86}
.footer-brand p{font-size:14px;line-height:1.85;color:#96A29C;margin:16px 0 0;max-width:34ch}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.1em;color:#7E8C86;margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:#C9CFC9;transition:color .18s ease}
.footer-col a:hover{color:var(--accent)}
.footer-contact{font-size:13.5px;line-height:2;color:#96A29C;font-family:var(--font-mono);letter-spacing:.02em;margin-bottom:16px}
.site-footer .footer-qr{background:rgba(247,244,236,.04);border-color:rgba(247,244,236,.18);color:#8A9691}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:28px;border-top:1px solid rgba(247,244,236,.14)}
.footer-tags span{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:#8A9691;
  border:1px solid rgba(247,244,236,.16);border-radius:999px;padding:5px 12px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  margin-top:26px;padding:22px 0 26px;border-top:1px solid rgba(247,244,236,.14);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:#7E8C86;
}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991.98px){
  .drawer{width:100vw;border-left:none}
  .drawer-body{grid-template-columns:1fr}
  .drawer-nav{border-right:none;border-bottom:1px solid var(--line)}
  .drawer-link .name{font-size:20px}
  .section{padding:64px 0}
  .toc-panel{position:static;margin-bottom:0}
  .toc-toggle{display:inline-flex}
  .article-hero{padding:36px 0 46px}
  .point-grid{grid-template-columns:repeat(2,1fr)}
  .point-cell:nth-child(2){border-right:none}
  .point-cell:nth-child(1),.point-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .rel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col:last-child{grid-column:auto}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .header-inner{height:56px}
  .logo-main{font-size:15px}
  .header-cta{display:none}
  .article-title{max-width:none}
  .section{padding:56px 0}
  .rel-grid{grid-template-columns:1fr}
  .postnav{grid-template-columns:1fr}
  .postnav-item.right{text-align:left}
  .cta-band{padding:52px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .article-body{font-size:16px}
}
@media (max-width:575.98px){
  .point-grid{grid-template-columns:1fr}
  .point-cell{border-right:none;border-bottom:1px solid var(--line)}
  .point-cell:last-child{border-bottom:none}
  .drawer-nav{padding:22px 20px 32px}
  .drawer-aside{padding:22px 20px 32px}
  .drawer-head{padding:14px 20px}
  .meta-line{gap:12px;font-size:11.5px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .rel-card:hover,.postnav-item:hover,.btn-x.primary:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#101C19;
  --ink-2:#1D302B;
  --paper:#F7F4EC;
  --paper-2:#EFE9DD;
  --line:#DBD4C4;
  --accent:#E2552B;
  --accent-dark:#C94822;
  --accent-2:#2E6B5E;
  --muted:#6B7570;
  --radius:10px;
  --radius-sm:8px;
  --shadow-hover:0 18px 40px -28px rgba(16,28,25,.5);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bs-primary:#E2552B;
  --bs-body-bg:#F7F4EC;
  --bs-body-color:#101C19;
  --bs-border-color:#DBD4C4;
  --bs-link-color:#101C19;
  --bs-link-hover-color:#E2552B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.18}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.06em}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(247,244,236,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -28px rgba(16,28,25,.75)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:flex;flex-direction:column;justify-content:center;line-height:1.1}
.logo-main{font-size:17px;font-weight:700;letter-spacing:.01em}
.logo-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.header-actions{display:flex;align-items:center;gap:10px}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:44px;height:44px;padding:0 14px;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.menu-btn:hover{border-color:var(--ink);background:rgba(16,28,25,.04)}
.menu-icon{position:relative;width:16px;height:12px;display:inline-block}
.menu-icon i{position:absolute;left:0;width:100%;height:1.5px;background:currentColor;transition:transform .22s ease,opacity .16s ease}
.menu-icon i:nth-child(1){top:0}
.menu-icon i:nth-child(2){top:5px}
.menu-icon i:nth-child(3){top:10px}

/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-x.primary{background:var(--accent);color:#fff}
.btn-x.primary:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn-x.ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-x.ghost:hover{background:var(--ink);color:var(--paper)}
.btn-x.sm{height:40px;padding:0 16px;font-size:14px}
.btn-x.on-dark.ghost{border-color:var(--paper);color:var(--paper)}
.btn-x.on-dark.ghost:hover{background:var(--paper);color:var(--ink)}

/* ---------- Drawer ---------- */
.drawer-overlay{
  position:fixed;inset:0;z-index:1000;background:rgba(16,28,25,.58);
  opacity:0;visibility:hidden;transition:opacity .16s ease,visibility .16s ease;
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:1001;
  width:min(1040px,94vw);height:100%;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;
  overflow-y:auto;overscroll-behavior:contain;
}
.drawer.open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 28px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:var(--paper);z-index:2;
}
.drawer-head .logo-main{font-size:15px}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  cursor:pointer;color:var(--ink);font-size:18px;line-height:1;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.drawer-close:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.drawer-body{display:grid;grid-template-columns:1.35fr 1fr;flex:1;min-height:0}
.drawer-nav{padding:28px 28px 40px;border-right:1px solid var(--line)}
.drawer-nav-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;margin-bottom:18px}
.drawer-link{
  display:flex;align-items:baseline;gap:16px;
  padding:16px 0 16px 14px;border-bottom:1px solid var(--line);
  border-left:2px solid transparent;
  transition:border-color .18s ease,color .18s ease;
}
.drawer-link .idx{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.1em;min-width:22px}
.drawer-link .name{font-size:22px;font-weight:600;letter-spacing:-.01em;position:relative}
.drawer-link .name::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1.5px;width:0;background:var(--accent);
  transition:width .22s ease;
}
.drawer-link:hover .name::after{width:100%}
.drawer-link:hover .name{color:var(--ink)}
.drawer-link.active{border-left-color:var(--accent)}
.drawer-link.active .idx{color:var(--accent)}
.drawer-aside{padding:28px 28px 40px;background:var(--paper-2);display:flex;flex-direction:column;gap:26px}
.drawer-aside h4{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin-bottom:10px}
.drawer-aside p{font-size:14px;line-height:1.75;color:var(--muted)}
.search-box{display:flex;gap:8px}
.search-box input{
  flex:1;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--paper);color:var(--ink);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 2px rgba(226,85,43,.35)}
.search-box button{
  height:44px;padding:0 16px;border:none;border-radius:var(--radius-sm);
  background:var(--ink);color:var(--paper);font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s ease;
}
.search-box button:hover{background:var(--accent)}
.aside-meta{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em;line-height:2}

/* ---------- Category head ---------- */
.cat-head{position:relative;padding:64px 0 58px;border-bottom:1px solid var(--line);overflow:hidden;background:var(--paper)}
.cat-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(to right,rgba(16,28,25,.06) 1px,transparent 1px),linear-gradient(to bottom,rgba(16,28,25,.06) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(120deg,#000 0%,transparent 72%);
  mask-image:linear-gradient(120deg,#000 0%,transparent 72%);
}
.cat-head-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.55fr .85fr;gap:48px;align-items:end}
.crumb{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--muted);margin-bottom:20px}
.crumb a{border-bottom:1px solid transparent}
.crumb a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.crumb .sep{margin:0 8px;color:var(--line)}
.cat-idx{font-family:var(--font-mono);font-size:12px;letter-spacing:.24em;color:var(--accent);margin-bottom:14px}
.cat-title{font-size:clamp(2rem,4.4vw,3.15rem);line-height:1.1}
.cat-lead{margin-top:20px;max-width:58ch;color:var(--muted);font-size:16.5px}
.cat-lead strong{color:var(--ink);font-weight:600}
.mono-stats{border-left:1px solid var(--line);padding-left:26px;display:grid;gap:16px}
.mono-stats .stat{display:flex;flex-direction:column;gap:2px}
.mono-stats .num{font-family:var(--font-mono);font-size:24px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.01em;line-height:1.2}
.mono-stats .lbl{font-size:12px;color:var(--muted);letter-spacing:.06em}
.mono-stats .note{font-family:var(--font-mono);font-size:11px;color:var(--muted);letter-spacing:.04em;opacity:.85}

/* ---------- Section base ---------- */
.section{padding:88px 0}
.section--alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--dark{background:var(--ink);color:var(--paper)}
.section--dark p{color:rgba(247,244,236,.72)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;flex-wrap:wrap}
.sec-head .left{max-width:640px}
.sec-idx{font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;color:var(--accent);margin-bottom:10px}
.sec-title{font-size:clamp(1.55rem,3vw,2.25rem)}
.sec-lead{color:var(--muted);font-size:15.5px;margin-top:14px;max-width:52ch}
.section--dark .sec-lead{color:rgba(247,244,236,.7)}

/* ---------- Split block ---------- */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.body-text p{font-size:16px;line-height:1.9;color:var(--ink)}
.body-text p.muted{color:var(--muted)}
.point-list{border-top:1px solid var(--line)}
.point-list li{
  display:grid;grid-template-columns:18px 1fr;gap:12px;
  padding:16px 0;border-bottom:1px solid var(--line);font-size:15px;
}
.point-list li::before{content:"";width:6px;height:6px;margin-top:11px;background:var(--accent);border-radius:50%}

/* ---------- Badges ---------- */
.badge-x{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border:1px solid var(--line);border-radius:999px;
  font-size:12px;letter-spacing:.06em;color:var(--muted);background:transparent;
}
.badge-x.accent{border-color:var(--accent);color:var(--accent)}
.badge-x.green{border-color:var(--accent-2);color:var(--accent-2)}

/* ---------- Topic cards ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.topic-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(16,28,25,.3)}
.topic-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper-2);border-bottom:1px solid var(--line)}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.topic-card:hover .topic-thumb img{transform:scale(1.03)}
.corner-tag{
  position:absolute;top:12px;left:12px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  background:var(--ink);color:var(--paper);padding:4px 10px;border-radius:999px;
}
.topic-body{padding:22px 24px 20px;display:flex;flex-direction:column;flex:1}
.topic-body h3{font-size:1.14rem;line-height:1.45;margin-bottom:10px}
.topic-body p{font-size:15px;color:var(--muted);margin-bottom:18px;flex:1}
.topic-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);padding-top:14px;
  font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.05em;
}
.topic-meta .rt{display:inline-flex;align-items:center;gap:14px}
.topic-actions{margin-top:34px;display:flex;justify-content:flex-start}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--ink);
  border:1px solid var(--line);border-radius:var(--radius-sm);height:44px;padding:0 20px;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.link-more:hover{border-color:var(--ink);background:var(--ink);color:var(--paper)}

/* ---------- Channel entry ---------- */
.chan-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.chan-card{
  display:flex;flex-direction:column;gap:14px;
  padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.chan-card:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.chan-num{font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;color:var(--accent)}
.chan-card h3{font-size:1.25rem}
.chan-card p{font-size:14.5px;color:var(--muted);margin:0}
.chan-link{
  align-self:flex-start;margin-top:4px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--ink);
  border-bottom:1.5px solid var(--accent);padding-bottom:3px;
  transition:color .18s ease;
}
.chan-card:hover .chan-link{color:var(--accent)}

/* ---------- Manual list ---------- */
.manual-list li{
  display:grid;grid-template-columns:64px 1fr;gap:22px;
  padding:24px 0;border-top:1px solid var(--line);align-items:start;
}
.manual-list li:last-child{border-bottom:1px solid var(--line)}
.manual-num{font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;color:var(--accent);padding-top:3px}
.manual-list h3{font-size:1.05rem;margin-bottom:6px}
.manual-list p{margin:0;font-size:14.6px;color:var(--muted)}

/* ---------- Progress ---------- */
.prog-wrap{display:grid;grid-template-columns:1fr .8fr;gap:56px;align-items:start}
.prog-list{display:grid;gap:26px;max-width:640px}
.prog-item .prog-top{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:10px;font-size:14.6px}
.prog-item .val{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:600;color:var(--accent-2)}
.prog-track{height:6px;background:rgba(16,28,25,.1);border-radius:999px;overflow:hidden}
.prog-fill{height:100%;background:var(--accent-2);border-radius:999px}
.prog-note{margin-top:22px;font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em}
.kv{display:grid;gap:0;border-top:1px solid var(--line)}
.kv-row{display:flex;align-items:baseline;justify-content:space-between;gap:18px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.kv-row .k{color:var(--muted)}
.kv-row .v{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:940px}
.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:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-family:var(--font-mono);font-size:20px;line-height:1;color:var(--accent)}
.faq-item[open] summary::after{content:"−"}
.faq-ans{padding:0 0 24px;max-width:74ch;font-size:15px;color:var(--muted)}

/* ---------- Read list ---------- */
.read-list li{
  display:grid;grid-template-columns:1fr auto;gap:18px;align-items:start;
  padding:20px 0;border-top:1px solid var(--line);
}
.read-list li:last-child{border-bottom:1px solid var(--line)}
.read-list h3{font-size:1.02rem;margin-bottom:4px}
.read-list p{margin:0;font-size:14px;color:var(--muted)}
.read-list .tag{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--muted);padding-top:4px;white-space:nowrap}
.cta-bar{
  margin-top:40px;padding:32px;border-radius:var(--radius);
  background:var(--ink);color:var(--paper);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-bar h3{font-size:1.25rem}
.cta-bar p{margin:6px 0 0;font-size:14px;color:rgba(247,244,236,.72)}
.cta-bar .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,236,.78);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-main{color:var(--paper)}
.footer-brand .logo-sub{color:rgba(247,244,236,.5)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(247,244,236,.62);max-width:38ch}
.footer-col h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:rgba(247,244,236,.45);margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14.5px;color:rgba(247,244,236,.8);border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease}
.footer-col ul a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.footer-contact{font-size:13.5px;line-height:2;color:rgba(247,244,236,.62);font-family:var(--font-mono);letter-spacing:.02em}
.footer-qr{
  margin-top:16px;width:120px;height:120px;border:1px dashed rgba(247,244,236,.35);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:rgba(247,244,236,.5);padding:10px;line-height:1.6;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:28px;border-top:1px solid rgba(247,244,236,.14)}
.footer-tags span{
  font-size:12px;letter-spacing:.08em;color:rgba(247,244,236,.6);
  border:1px solid rgba(247,244,236,.2);border-radius:999px;padding:5px 12px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px 28px;justify-content:space-between;align-items:center;
  margin-top:26px;padding-top:22px;border-top:1px solid rgba(247,244,236,.14);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:rgba(247,244,236,.5);
}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .cat-head-grid{gap:36px}
  .split{gap:40px}
  .prog-wrap{gap:40px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
}
@media (max-width:992px){
  .drawer{width:100vw;border-left:none}
  .drawer-body{grid-template-columns:1fr}
  .drawer-nav{border-right:none;border-bottom:1px solid var(--line)}
  .cat-head-grid{grid-template-columns:1fr;align-items:start;gap:32px}
  .mono-stats{border-left:none;border-top:1px solid var(--line);padding-left:0;padding-top:22px;grid-template-columns:repeat(3,1fr);gap:18px}
  .split{grid-template-columns:1fr}
  .prog-wrap{grid-template-columns:1fr}
  .topic-grid{grid-template-columns:1fr}
  .chan-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .header-inner{height:56px}
  .logo-main{font-size:15.5px}
  .header-cta{display:none}
  .cat-head{padding:44px 0 42px}
  .cat-title{font-size:2.1rem}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .manual-list li{grid-template-columns:44px 1fr;gap:14px}
  .read-list li{grid-template-columns:1fr}
  .read-list .tag{padding-top:0}
  .cta-bar{padding:26px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-tags{margin-top:32px}
}
@media (max-width:520px){
  .mono-stats{grid-template-columns:1fr}
  .btn-x{width:100%}
  .header-actions .btn-x{width:auto}
  .cta-bar .actions{width:100%}
  .topic-body{padding:18px 18px 16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --ink:#101C19;
  --ink-2:#1D302B;
  --paper:#F7F4EC;
  --paper-2:#EFE9DD;
  --line:#DBD4C4;
  --accent:#E2552B;
  --accent-dark:#C94822;
  --accent-2:#2E6B5E;
  --muted:#6B7570;
  --radius:10px;
  --radius-sm:8px;
  --shadow-hover:0 18px 40px -28px rgba(16,28,25,.5);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bs-primary:#E2552B;
  --bs-body-bg:#F7F4EC;
  --bs-body-color:#101C19;
  --bs-border-color:#DBD4C4;
  --bs-link-color:#101C19;
  --bs-link-hover-color:#E2552B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.015em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(247,244,236,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -28px rgba(16,28,25,.75)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:flex;flex-direction:column;justify-content:center;line-height:1.1}
.logo-main{font-size:17px;font-weight:700;letter-spacing:.01em}
.logo-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.header-actions{display:flex;align-items:center;gap:10px}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:44px;height:44px;padding:0 14px;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--ink);font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.menu-btn:hover{border-color:var(--ink);background:rgba(16,28,25,.04)}
.menu-icon{position:relative;width:16px;height:12px;display:inline-block}
.menu-icon i{position:absolute;left:0;width:100%;height:1.5px;background:currentColor;transition:transform .22s ease,opacity .16s ease}
.menu-icon i:nth-child(1){top:0}
.menu-icon i:nth-child(2){top:5px}
.menu-icon i:nth-child(3){top:10px}
/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn-x.primary{background:var(--accent);color:#fff}
.btn-x.primary:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn-x.ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-x.ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.btn-x.sm{min-height:44px;padding:0 18px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;border-bottom:1.5px solid var(--accent);padding-bottom:2px;transition:color .18s ease}
.text-link:hover{color:var(--accent)}
/* ---------- Drawer ---------- */
.drawer-overlay{
  position:fixed;inset:0;z-index:1000;background:rgba(16,28,25,.58);
  opacity:0;visibility:hidden;transition:opacity .16s ease,visibility .16s ease;
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:1001;
  width:min(1040px,94vw);height:100%;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;
  overflow-y:auto;overscroll-behavior:contain;
}
.drawer.open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 28px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:var(--paper);z-index:2;
}
.drawer-head .logo-main{font-size:15px}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-sm);
  cursor:pointer;color:var(--ink);font-size:17px;line-height:1;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.drawer-close:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.drawer-body{display:grid;grid-template-columns:1.35fr 1fr;gap:0;flex:1;min-height:0}
.drawer-nav{padding:28px 28px 40px;border-right:1px solid var(--line)}
.drawer-nav-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;margin-bottom:18px}
.drawer-link{
  display:flex;align-items:baseline;gap:16px;
  padding:16px 0 16px 14px;border-bottom:1px solid var(--line);
  border-left:2px solid transparent;
  transition:border-color .18s ease,color .18s ease;
  position:relative;
}
.drawer-link .idx{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.1em;min-width:22px}
.drawer-link .name{font-size:22px;font-weight:600;letter-spacing:-.01em;position:relative}
.drawer-link .name::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1.5px;width:0;background:var(--accent);
  transition:width .22s ease;
}
.drawer-link:hover .name::after{width:100%}
.drawer-link:hover .name{color:var(--ink)}
.drawer-link.active{border-left-color:var(--accent)}
.drawer-link.active .idx{color:var(--accent)}
.drawer-aside{padding:28px 28px 40px;background:var(--paper-2);display:flex;flex-direction:column;gap:26px}
.drawer-aside h4{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin-bottom:10px}
.drawer-aside p{font-size:14px;line-height:1.75;color:var(--muted)}
.search-box{display:flex;gap:8px}
.search-box input{
  flex:1;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--paper);color:var(--ink);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 2px rgba(226,85,43,.35)}
.search-box button{
  height:44px;padding:0 16px;border:none;border-radius:var(--radius-sm);
  background:var(--ink);color:var(--paper);font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s ease;
}
.search-box button:hover{background:var(--accent)}
.aside-meta{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em;line-height:2}
/* ---------- Section basics ---------- */
.section{padding:96px 0;border-top:1px solid var(--line)}
.section-alt{background:var(--paper-2)}
.section-ink{background:var(--ink);color:#E6EBE7;border-top:1px solid var(--ink-2)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;
}
.section-ink .eyebrow{color:#8FA39C}
h2{font-size:clamp(1.6rem,3vw,2.5rem);font-weight:700;line-height:1.15;margin-bottom:14px}
.section-sub{font-size:16px;color:var(--muted);line-height:1.9;max-width:64ch}
.section-ink .section-sub{color:#9FB0A9}
.cross{position:absolute;width:12px;height:12px;pointer-events:none}
.cross::before{content:"";position:absolute;left:50%;top:0;width:1px;height:100%;background:var(--line);transform:translateX(-.5px)}
.cross::after{content:"";position:absolute;top:50%;left:0;height:1px;width:100%;background:var(--line);transform:translateY(-.5px)}
/* ---------- Category head ---------- */
.cat-head{
  position:relative;
  padding:52px 0 76px;
  border-top:0;
  background-color:var(--paper);
  background-image:
    linear-gradient(to right,rgba(16,28,25,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(16,28,25,.055) 1px,transparent 1px);
  background-size:56px 56px;
}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:28px;flex-wrap:wrap}
.crumb a:hover{color:var(--accent)}
.crumb .current{color:var(--ink);font-weight:600}
.cat-head-grid{display:grid;grid-template-columns:1.45fr .85fr;gap:56px;align-items:start}
.cat-head h1{font-size:clamp(2.1rem,4.4vw,3.5rem);line-height:1.1;font-weight:700;margin:6px 0 20px}
.lede{font-size:17px;line-height:1.9;max-width:58ch}
.lede.sub{color:var(--muted);font-size:16px}
.cat-metrics{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);
  overflow:hidden;box-shadow:0 0 0 1px rgba(219,212,196,.4);
}
.cat-metric{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:16px 18px;border-bottom:1px solid var(--line)}
.cat-metric:last-child{border-bottom:0}
.cat-metric b{font-family:var(--font-mono);font-size:20px;font-weight:600;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.cat-metric span{font-size:12.5px;color:var(--muted);letter-spacing:.05em;text-align:right}
.cat-metric-note{font-family:var(--font-mono);font-size:11px;color:var(--muted);letter-spacing:.04em;padding:12px 18px;background:var(--paper-2);border-top:1px solid var(--line)}
/* ---------- Asymmetric intro ---------- */
.asym{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.asym h2{margin-bottom:18px}
.asym p{color:#25332F;font-size:16px;line-height:1.9}
.point-list{list-style:none;border-top:1px solid var(--line)}
.point-list li{
  display:grid;grid-template-columns:auto 1fr;gap:14px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.point-list .dot{width:8px;height:8px;margin-top:11px;background:var(--accent);border-radius:1px}
.point-list b{display:block;font-size:15.5px;font-weight:600;margin-bottom:2px}
.point-list span.desc{display:block;font-size:14px;color:var(--muted);line-height:1.8}
/* ---------- Scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(16,28,25,.22)}
.scene-card .shot{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);background:var(--paper-2)}
.scene-card .shot img{width:100%;height:100%;object-fit:cover}
.scene-card .body{padding:22px}
.scene-card .num{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--accent);display:block;margin-bottom:8px}
.scene-card h3{font-size:18px;font-weight:600;margin-bottom:8px;position:relative;display:inline-block}
.scene-card h3::after{content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;background:var(--accent);transition:width .2s ease}
.scene-card:hover h3::after{width:100%}
.scene-card p{font-size:14.5px;color:var(--muted);line-height:1.85;margin:0}
/* ---------- Media list ---------- */
.media-list{border-top:1px solid var(--line)}
.media-item{
  display:grid;grid-template-columns:168px 1fr;gap:24px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.media-item:hover{background:rgba(239,233,221,.5)}
.media-thumb{
  display:block;width:100%;aspect-ratio:3/2;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--paper-2);
}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.media-item:hover .media-thumb img{transform:scale(1.03)}
.media-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.badge-tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.08em;font-weight:600;
  padding:2px 10px;border-radius:999px;
  border:1px solid rgba(46,107,94,.42);color:var(--accent-2);
}
.media-meta .mono{font-size:12px;color:var(--muted);letter-spacing:.05em}
.media-body h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:8px}
.media-body h3 a:hover{color:var(--accent)}
.media-body p{font-size:14.5px;color:var(--muted);line-height:1.85;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.read-more{font-size:13px;font-weight:600;color:var(--ink);border-bottom:1.5px solid var(--accent);padding-bottom:1px;transition:color .18s ease}
.read-more:hover{color:var(--accent)}
.list-foot{display:flex;justify-content:center;margin-top:36px}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:52px 24px;text-align:center;
  background:var(--paper-2);border:1px dashed var(--line);border-radius:var(--radius);
}
.empty-state .mono{font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.empty-state p{color:var(--muted);font-size:15px;margin:0}
.empty-state a{font-weight:600;border-bottom:1.5px solid var(--accent);padding-bottom:1px}
.empty-state a:hover{color:var(--accent)}
/* ---------- Entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.entry-card{
  position:relative;display:flex;flex-direction:column;gap:10px;
  padding:26px 24px 24px;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(16,28,25,.22)}
.entry-card .no{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--accent)}
.entry-card h3{font-size:20px;font-weight:600}
.entry-card p{font-size:14.5px;color:var(--muted);line-height:1.85;margin:0}
.entry-card .tagline{margin-top:6px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--accent-2)}
.entry-card.current{border-color:rgba(226,85,43,.5)}
.entry-card.current .no{color:var(--accent-2)}
/* ---------- Spec table ---------- */
.spec-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper)}
.spec-row{display:grid;grid-template-columns:1fr 200px 1.6fr;gap:20px;padding:18px 22px;border-bottom:1px solid var(--line);transition:background .18s ease}
.spec-row:last-child{border-bottom:0}
.spec-row:hover{background:rgba(239,233,221,.55)}
.spec-row.head{
  background:var(--paper-2);font-family:var(--font-mono);
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
}
.spec-row.head:hover{background:var(--paper-2)}
.spec-row .name{font-weight:600;font-size:15.5px}
.spec-row .state{font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;color:var(--accent-2)}
.spec-row .state.off{color:var(--muted)}
.spec-row .note{font-size:14px;color:var(--muted);line-height:1.8}
/* ---------- Stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper)}
.stat-cell{padding:26px 22px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-cell b{display:block;font-family:var(--font-mono);font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:600;letter-spacing:-.01em;font-variant-numeric:tabular-nums;line-height:1.1}
.stat-cell span{display:block;font-size:13.5px;margin-top:8px;color:var(--ink)}
.stat-cell em{display:block;font-style:normal;font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;color:var(--muted);margin-top:6px;line-height:1.7}
.stat-note{margin-top:18px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.05em;color:var(--muted)}
/* ---------- FAQ ---------- */
.faq{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;line-height:1.6;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  width:26px;height:26px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:4px;
  font-family:var(--font-mono);font-size:15px;color:var(--muted);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.faq-item summary:hover{color:var(--accent)}
.faq-item summary:hover::after{border-color:var(--ink);color:var(--ink)}
.faq-item[open] summary::after{content:"−";border-color:var(--ink);color:var(--ink);background:rgba(16,28,25,.05)}
.faq-body{padding:0 0 24px;max-width:70ch;font-size:15px;color:var(--muted);line-height:1.9;animation:faqFade .18s ease}
@keyframes faqFade{from{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:none}}
/* ---------- Related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.related-item{
  display:flex;flex-direction:column;gap:10px;
  padding:22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--paper);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.related-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(16,28,25,.22)}
.related-item .mono{font-size:11px;letter-spacing:.16em;color:var(--accent)}
.related-item h3{font-size:16.5px;font-weight:600;line-height:1.55}
.related-item p{font-size:14px;color:var(--muted);line-height:1.8;margin:0}
.related-foot{margin-top:30px;display:flex;gap:22px;flex-wrap:wrap;align-items:center}
/* ---------- Final CTA ---------- */
.cta-band{padding:88px 0;background:var(--ink);color:#E6EBE7;border-top:1px solid var(--ink-2)}
.cta-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:48px;align-items:center}
.cta-band h2{color:var(--paper);margin-bottom:14px}
.cta-band p{color:#9FB0A9;font-size:16px;line-height:1.9;max-width:52ch;margin-bottom:26px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-x.primary{background:var(--accent);color:#fff}
.cta-band .btn-x.primary:hover{background:var(--accent-dark)}
.cta-side{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.qr-box{
  width:100%;max-width:190px;aspect-ratio:1/1;
  display:grid;place-items:center;text-align:center;
  border:1px dashed rgba(201,210,205,.38);border-radius:var(--radius-sm);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:#8FA39C;
  padding:12px;line-height:1.8;
}
.cta-side .mono{font-size:11.5px;color:#8FA39C;letter-spacing:.06em;line-height:1.9}
/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#C9D2CD;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand p{font-size:14px;line-height:1.85;color:#9BAAA4;margin:14px 0 0;max-width:38ch}
.site-footer .logo-main{color:var(--paper)}
.site-footer .logo-sub{color:#7E8F89}
.footer-col h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#7E8F89;margin:0 0 14px}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:#C9D2CD}
.footer-col a:hover{color:var(--accent)}
.footer-contact{font-size:14px;line-height:2;color:#9BAAA4}
.footer-qr{
  margin-top:14px;border:1px dashed rgba(201,210,205,.35);border-radius:var(--radius-sm);
  padding:14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:#9BAAA4;text-align:center;line-height:1.8;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:28px;border-top:1px solid rgba(201,210,205,.16)}
.footer-tags span{font-size:12px;letter-spacing:.08em;color:#9BAAA4;border:1px solid rgba(201,210,205,.22);border-radius:999px;padding:5px 12px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;
  margin-top:26px;padding-top:20px;border-top:1px solid rgba(201,210,205,.16);
  font-family:var(--font-mono);font-size:12px;color:#7E8F89;letter-spacing:.04em;
}
/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .cat-head-grid{grid-template-columns:1.2fr .8fr;gap:40px}
  .asym{gap:40px}
}
@media (max-width:991px){
  .drawer{width:100vw;border-left:none}
  .drawer-body{grid-template-columns:1fr}
  .drawer-nav{border-right:0;border-bottom:1px solid var(--line)}
  .section{padding:76px 0}
  .cat-head{padding:40px 0 60px}
  .cat-head-grid{grid-template-columns:1fr;gap:32px}
  .asym{grid-template-columns:1fr;gap:32px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-cell{border-bottom:1px solid var(--line)}
  .stat-cell:nth-child(2n){border-right:0}
  .stat-cell:nth-last-child(-n+2){border-bottom:0}
  .footer-grid{grid-template-columns:1.4fr 1fr;gap:32px}
  .spec-row{grid-template-columns:1fr 140px 1.4fr;gap:14px;padding:16px 18px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .section{padding:64px 0}
  .cat-head{padding:32px 0 52px}
  .cat-head h1{font-size:2.25rem}
  .lede{font-size:16px}
  .scene-grid,.entry-grid,.related-grid{grid-template-columns:1fr}
  .media-item{grid-template-columns:1fr;gap:14px}
  .media-thumb{aspect-ratio:16/9}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:18px}
  .spec-row.head{display:none}
  .spec-row .state{font-size:12.5px}
  .stat-strip{grid-template-columns:1fr}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line)}
  .stat-cell:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .drawer-head{padding:14px 20px}
  .drawer-nav,.drawer-aside{padding:22px 20px 32px}
  .drawer-link .name{font-size:20px}
  .header-cta{display:none}
  .cta-band{padding:64px 0}
  .faq-item summary{font-size:15.5px;padding:18px 0}
}
@media (max-width:575px){
  .cat-metric span{font-size:11.5px}
  .btn-x{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .scene-card:hover,.entry-card:hover,.related-item:hover,.media-item:hover .media-thumb img{transform:none}
}