:root{--bg:#0c0e16;--panel:#131725;--line:#262c40;--ink:#e3e6f0;--dim:#8e96ad;--vio:#8f7cff;--mint:#2dd4bf;--sans:'Sora', 'Segoe UI', system-ui, sans-serif;--code:'Fira Code', Consolas, monospace;--rail:264px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body.zc-shell{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 var(--sans);-webkit-font-smoothing:antialiased;background-image:radial-gradient(900px 500px at 85% -10%,color-mix(in srgb,var(--vio) 16%,transparent),transparent 70%),radial-gradient(700px 400px at 10% 110%,color-mix(in srgb,var(--mint) 7%,transparent),transparent 70%);background-attachment:fixed}
a{color:var(--vio);text-underline-offset:3px}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;color:#fff;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(2rem,4.2vw,3.25rem);font-weight:800}
h2{font-size:clamp(1.3rem,2.2vw,1.7rem)}
h3{font-size:1.05rem}
.zc-jump{position:absolute;left:-999px;top:8px}.zc-jump:focus{left:12px;z-index:50;background:var(--vio);color:#fff;padding:8px 14px;border-radius:8px}

/* left rail */
.zc-rail{position:fixed;inset:0 auto 0 0;width:var(--rail);border-right:1px solid var(--line);background:color-mix(in srgb,var(--panel) 88%,#000);padding:26px 18px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;z-index:20}
.zc-brand img{height:64px;width:auto}
.zc-menu{display:none}
.zc-rail-label{font:500 11px var(--code);text-transform:uppercase;letter-spacing:.14em;color:var(--dim);margin:20px 0 8px 10px}
.zc-rail-nav ul{list-style:none;margin:0;padding:0}
.zc-rail-nav a{display:flex;align-items:center;gap:12px;padding:9px 10px;border-radius:8px;color:var(--ink);text-decoration:none;font-size:14.5px}
.zc-rail-nav a:hover{background:color-mix(in srgb,var(--vio) 14%,transparent);color:#fff}
.zc-rail-nav i{font:500 11px var(--code);font-style:normal;color:var(--vio)}
.zc-rail-topics a{justify-content:space-between;color:var(--dim);font-size:14px}
.zc-rail-topics em{font:500 11px var(--code);font-style:normal;border:1px solid var(--line);border-radius:20px;padding:1px 8px}
.zc-rail-status{margin-top:26px;display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:12px;font:12px/1.5 var(--code);color:var(--dim)}
.zc-rail-status time{color:var(--ink)}
.zc-pulse{width:9px;height:9px;flex:none;margin-top:4px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px color-mix(in srgb,var(--mint) 22%,transparent);display:inline-block;animation:zc-beat 2.4s ease-in-out infinite}
@keyframes zc-beat{50%{box-shadow:0 0 0 7px color-mix(in srgb,var(--mint) 6%,transparent)}}

/* stage */
.zc-stage{margin-left:var(--rail);min-height:100vh;display:flex;flex-direction:column}
.zc-view{width:100%;max-width:1060px;padding:40px 44px 20px;flex:1}
.zc-tag{display:inline-flex;align-items:center;gap:10px;font:500 12px var(--code);text-transform:uppercase;letter-spacing:.12em;color:var(--mint);margin:0 0 16px}
.zc-tag .zc-pulse{margin:0}
.zc-sub{color:var(--dim);font-size:1.08rem;max-width:66ch;margin:0 0 8px}
.zc-intro{padding:12px 0 26px}
.zc-intro-sm h1{font-size:clamp(1.8rem,3.4vw,2.6rem)}
.zc-head-row{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.zc-head-row h2{margin:0}
.zc-head-row a,.zc-head-row span{font:500 13px var(--code);color:var(--dim)}
.zc-head-row a{color:var(--vio)}
.zc-btn{display:inline-flex;align-items:center;gap:8px;background:var(--vio);color:#fff;text-decoration:none;font:600 14px var(--sans);padding:11px 20px;border-radius:9px;border:1px solid var(--vio)}
.zc-btn:hover{filter:brightness(1.12)}
.zc-btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.zc-btn-ghost:hover{border-color:var(--vio)}

/* terminal link panel */
.zc-term{border:1px solid color-mix(in srgb,var(--vio) 40%,var(--line));border-radius:14px;background:linear-gradient(180deg,color-mix(in srgb,var(--panel) 92%,var(--vio)) 0,var(--panel) 120px);box-shadow:0 40px 90px -40px color-mix(in srgb,var(--vio) 60%,transparent);overflow:hidden}
.zc-term-bar{display:flex;align-items:center;gap:16px;padding:12px 18px;border-bottom:1px solid var(--line);background:#0005;font:13px var(--code);color:var(--dim)}
.zc-term-bar code{color:var(--mint);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.zc-lights{display:flex;gap:6px}.zc-lights i{width:10px;height:10px;border-radius:50%;background:var(--line)}
.zc-lights i:first-child{background:#ff6b6b}.zc-lights i:nth-child(2){background:#ffd166}.zc-lights i:last-child{background:var(--mint)}
.zc-term-h{font-size:1rem;font-family:var(--code);font-weight:500;color:var(--dim);margin:0;padding:18px 22px 4px;text-transform:uppercase;letter-spacing:.1em}
.zc-feed{list-style:none;margin:0;padding:8px 14px 6px}
.zc-feed-row{display:grid;grid-template-columns:44px 1fr auto auto;gap:16px;align-items:center;padding:16px 10px;border-bottom:1px dashed var(--line)}
.zc-feed-row:last-child{border-bottom:0}
.zc-idx{font:600 15px var(--code);color:var(--vio);width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;background:#0004}
.zc-row-label{margin:0;font:500 12px var(--code);text-transform:uppercase;letter-spacing:.08em;color:var(--mint)}
.zc-row-label span{color:var(--dim);margin-left:8px}
.zc-row-title{margin:2px 0 2px;font-size:1.08rem}
.zc-row-text{margin:0;color:var(--dim);font-size:14px;line-height:1.55}
.zc-row-lead{background:color-mix(in srgb,var(--vio) 9%,transparent);border:1px solid color-mix(in srgb,var(--vio) 35%,transparent);border-radius:12px;padding:20px 14px;margin-bottom:8px}
.zc-row-lead .zc-row-title{font-size:1.3rem}
.zc-badge{font:500 12px var(--code);padding:5px 10px;border-radius:20px;border:1px solid color-mix(in srgb,#ffd166 45%,transparent);color:#ffd166;background:color-mix(in srgb,#ffd166 8%,transparent);white-space:nowrap}
.zc-launch{display:inline-block;min-width:132px;text-align:center;font:600 14px var(--sans);padding:11px 18px;border-radius:9px;text-decoration:none;background:var(--mint);color:#06201c;border:1px solid var(--mint)}
.zc-launch.is-off{background:transparent;color:var(--dim);border:1px dashed var(--line);cursor:not-allowed}
.zc-lit .zc-badge{color:var(--mint);border-color:color-mix(in srgb,var(--mint) 45%,transparent);background:color-mix(in srgb,var(--mint) 9%,transparent)}
.zc-lit .zc-launch:hover{filter:brightness(1.1)}
.zc-term-foot{margin:0;padding:14px 24px 18px;border-top:1px solid var(--line);font-size:13.5px;color:var(--dim);background:#0003}

.zc-meters{margin:22px 0 56px;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.zc-meters>div{border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:var(--panel)}
.zc-meters dt{font:500 11px var(--code);text-transform:uppercase;letter-spacing:.1em;color:var(--dim)}
.zc-meters dd{margin:0;font-size:1.15rem;font-weight:700;color:#fff}

/* articles */
.zc-reads,.zc-pipeline,.zc-faq,.zc-group{margin:0 0 60px}
.zc-spot{position:relative;border-radius:16px;padding:30px 32px;margin-bottom:16px;border:1px solid var(--line);background:linear-gradient(120deg,color-mix(in srgb,var(--vio) 22%,var(--panel)),var(--panel) 55%,color-mix(in srgb,var(--mint) 10%,var(--panel)))}
.zc-spot-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.zc-spot-meta span{font:500 11px var(--code);text-transform:uppercase;letter-spacing:.1em;padding:4px 10px;border-radius:20px;background:#0005;color:var(--ink)}
.zc-spot-meta span:first-child{background:var(--vio);color:#fff}
.zc-spot h3{font-size:clamp(1.3rem,2.4vw,1.75rem)}
.zc-spot h3 a,.zc-tile h3 a{color:#fff;text-decoration:none}
.zc-spot h3 a:hover,.zc-tile h3 a:hover{color:var(--vio)}
.zc-spot p{color:var(--dim);max-width:60ch}
.zc-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.zc-tile{border:1px solid var(--line);border-radius:12px;padding:20px;background:var(--panel);transition:border-color .2s,transform .2s}
.zc-tile:hover{border-color:color-mix(in srgb,var(--vio) 60%,var(--line));transform:translateY(-2px)}
.zc-tile-meta{font:500 11px var(--code);text-transform:uppercase;letter-spacing:.1em;color:var(--mint);margin:0 0 8px}
.zc-tile p:last-child{margin:0;color:var(--dim);font-size:14.5px}

/* pipeline */
.zc-stages{list-style:none;margin:22px 0 26px;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:st;position:relative}
.zc-stages li{position:relative;padding:24px 20px 6px 0;border-top:2px solid var(--line)}
.zc-stages li::before{content:'';position:absolute;top:-7px;left:0;width:12px;height:12px;border-radius:50%;background:var(--vio);box-shadow:0 0 0 4px var(--bg)}
.zc-stage-no{font:500 12px var(--code);color:var(--vio)}
.zc-stages h3{margin:6px 0 6px}
.zc-stages p{margin:0;color:var(--dim);font-size:14.5px}

/* faq */
.zc-qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.zc-qa{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:18px 20px}
.zc-qa h3{display:flex;gap:12px;align-items:baseline;font-size:1rem;margin:0 0 8px}
.zc-qa h3 span{font:500 11px var(--code);color:var(--vio);border:1px solid color-mix(in srgb,var(--vio) 45%,var(--line));border-radius:6px;padding:2px 6px;flex:none}
.zc-qa-a{color:var(--dim);font-size:14.5px}
.zc-notice{border-left:3px solid var(--vio);padding:6px 0 6px 16px;color:var(--dim);font-size:13.5px;margin:0 0 30px}

/* article pages */
.zc-crumbs{display:flex;flex-wrap:wrap;gap:8px;font:13px var(--code);color:var(--dim);margin-bottom:22px}
.zc-crumbs a{color:var(--dim);text-decoration:none}.zc-crumbs a:hover{color:var(--vio)}
.zc-doc{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:40px;align-items:start;margin-bottom:60px}
.zc-doc-solo{grid-template-columns:minmax(0,760px)}
.zc-doc-main header{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:10px}
.zc-doc-main h2{margin-top:1.6em;font-size:1.35rem}
.zc-doc-main p{color:color-mix(in srgb,var(--ink) 88%,var(--dim))}
.zc-stamp{font:12.5px var(--code);color:var(--dim);margin:12px 0 0}
.zc-key{margin:30px 0;padding:18px 20px;border-radius:12px;border:1px solid color-mix(in srgb,var(--mint) 40%,var(--line));background:color-mix(in srgb,var(--mint) 7%,var(--panel))}
.zc-key b{display:block;font:500 11px var(--code);text-transform:uppercase;letter-spacing:.12em;color:var(--mint);margin-bottom:6px}
.zc-pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:36px}
.zc-pager a{border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:#fff;font-weight:600;font-size:14.5px;background:var(--panel)}
.zc-pager a:hover{border-color:var(--vio)}
.zc-pager small{display:block;font:500 11px var(--code);text-transform:uppercase;letter-spacing:.1em;color:var(--dim);margin-bottom:4px}
.zc-pager-next{grid-column:2;text-align:right}
.zc-doc-side{position:sticky;top:24px;display:grid;gap:14px}
.zc-box{border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--panel)}
.zc-box h2{font:500 11px var(--code);text-transform:uppercase;letter-spacing:.12em;color:var(--dim);margin:0 0 10px}
.zc-box ol,.zc-box ul{margin:0;padding-left:18px;font-size:14px}
.zc-box li{margin:6px 0}
.zc-box a{color:var(--ink);text-decoration:none}.zc-box a:hover{color:var(--vio)}
.zc-doc-side .zc-btn{justify-content:center}
.zc-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}

/* footer */
.zc-foot{border-top:1px solid var(--line);padding:36px 44px 26px;background:#0003}
.zc-foot-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:32px;max-width:1060px}
.zc-foot img{height:48px;width:auto;margin-bottom:12px}
.zc-foot p{color:var(--dim);font-size:14px;margin:0}
.zc-foot strong{color:var(--ink)}
.zc-foot h2{font:500 11px var(--code);text-transform:uppercase;letter-spacing:.12em;color:var(--dim);margin:0 0 10px}
.zc-foot ul{list-style:none;margin:0;padding:0;font-size:14px}
.zc-foot li{margin:6px 0}
.zc-foot a{color:var(--ink);text-decoration:none}.zc-foot a:hover{color:var(--vio)}
.zc-foot-note{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;max-width:1060px;margin-top:28px!important;padding-top:16px;border-top:1px solid var(--line);font:12px var(--code)!important}

@media (max-width:1100px){.zc-tiles{grid-template-columns:1fr 1fr}.zc-doc{grid-template-columns:1fr}.zc-doc-side{position:static}}
@media (max-width:900px){
  .zc-rail{position:sticky;top:0;inset:auto;width:auto;height:auto;flex-direction:column;gap:0;padding:12px 16px;border-right:0;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);overflow:visible}
  .zc-rail-top{display:flex;justify-content:space-between;align-items:center}
  .zc-brand img{height:48px}
  .zc-menu{display:inline-flex;flex-direction:column;justify-content:center;gap:4px;width:44px;height:40px;padding:0 11px;background:var(--panel);border:1px solid var(--line);border-radius:9px;cursor:pointer}
  .zc-menu span{display:block;height:2px;background:var(--ink);border-radius:2px}
  .zc-menu b{position:absolute;left:-999px}
  .zc-rail-nav{display:none;padding:8px 0 10px}
  .zc-nav-open .zc-rail-nav{display:block}
  .zc-rail-status{margin-top:12px}
  .zc-stage{margin-left:0}
  .zc-view{padding:24px 16px 10px}
  .zc-meters{grid-template-columns:1fr 1fr}
  .zc-stages{grid-template-columns:1fr 1fr;row-gap:22px}
  .zc-foot{padding:30px 16px 22px}
  .zc-foot-cols{grid-template-columns:1fr 1fr}.zc-foot-cols>div:first-child{grid-column:1/-1}
}
@media (max-width:640px){
  .zc-qa-grid{grid-template-columns:1fr}
  .zc-intro{padding:4px 0 18px}
  .zc-intro .zc-sub{font-size:.98rem;line-height:1.6}
  .zc-intro h1{font-size:1.85rem}
  .zc-idx{align-self:start}
  .zc-feed-row{grid-template-columns:40px 1fr;gap:10px 14px;padding:16px 4px}
  .zc-row-lead{padding:16px 12px}
  .zc-badge{grid-column:2;justify-self:start}
  .zc-launch{grid-column:1/-1;width:100%}
  .zc-feed{padding:6px 10px}
  .zc-term-h{padding:16px 16px 2px}
  .zc-term-foot{padding:12px 16px 16px}
  .zc-term-bar time{display:none}
  .zc-tiles{grid-template-columns:1fr}
  .zc-spot{padding:22px 20px}
  .zc-stages{grid-template-columns:1fr}
  .zc-pager{grid-template-columns:1fr}.zc-pager-next{grid-column:auto;text-align:left}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}