/* OneKit — dark product-series site */
:root{
  --bg:#05070b;
  --bg-soft:#080c13;
  --panel:#0c111a;
  --panel-2:#111824;
  --line:rgba(255,255,255,.085);
  --line-2:rgba(255,255,255,.16);
  --text:#eaf0f8;
  --muted:#8d99ac;
  --dim:#5e6b7e;
  --cyan:#6fe0ff;
  --blue:#4b7dff;
  --violet:#8d7bff;
  --amber:#ffb35c;
  --green:#5ee0a8;
  --r:14px;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:"Inter","PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:15px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:60px 60px;
  -webkit-mask-image:linear-gradient(to bottom,#000 0%,rgba(0,0,0,.6) 55%,transparent 100%);
  mask-image:linear-gradient(to bottom,#000 0%,rgba(0,0,0,.6) 55%,transparent 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(900px 520px at 78% -8%,rgba(75,125,255,.11),transparent 70%),
             radial-gradient(700px 460px at 4% 24%,rgba(111,224,255,.055),transparent 70%);
}
a{color:inherit;text-decoration:none}
button{font:inherit}
::selection{background:rgba(111,224,255,.28);color:#fff}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto;position:relative;z-index:1}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:60;height:68px;
  background:rgba(5,7,11,.78);backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line);
}
.nav-in{height:100%;display:flex;align-items:center;gap:36px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em;font-size:17px;white-space:nowrap}
.brand-mark{
  width:22px;height:22px;border-radius:6px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 18px rgba(111,224,255,.35);position:relative;
}
.brand-mark::after{content:"";position:absolute;inset:6px;border-radius:2px;background:#05070b}
.brand small{font-family:var(--mono);font-size:10px;color:var(--dim);font-weight:400;letter-spacing:.14em;margin-left:2px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{font-size:13px;color:var(--muted);transition:color .2s;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a.active{position:relative}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-23px;height:1px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.nav-cta{font-size:12px!important;color:var(--text)!important;border:1px solid var(--line-2);padding:7px 15px;border-radius:999px}
.nav-cta:hover{border-color:var(--cyan);color:var(--cyan)!important}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line-2);color:var(--text);border-radius:8px;padding:6px 11px;cursor:pointer;font-size:13px}

/* ---------- nav dropdown (level-2 names on hover only) ---------- */
.nav-links{gap:22px}
.nav-group{position:relative;display:flex;align-items:center;height:68px}
.caret{font-size:10px;color:var(--dim);margin-left:3px}
.nav-drop{
  position:absolute;top:100%;left:-12px;z-index:70;min-width:212px;
  padding-top:10px;display:none;
}
.nav-group:last-child .nav-drop{left:auto;right:-12px}
.nav-group:hover,.nav-group:focus-within{z-index:80}
.nav-group:hover .nav-drop,.nav-group:focus-within .nav-drop{display:block}
.drop-card{
  background:#0d131d;border:1px solid var(--line-2);border-radius:12px;padding:10px;
  box-shadow:0 22px 55px rgba(0,0,0,.6);
}
.drop-label{
  display:block;font-family:var(--mono);font-size:9px;letter-spacing:.14em;
  color:var(--dim);padding:6px 12px 9px;white-space:nowrap;
}
.drop-card a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:8px 12px;border-radius:7px;font-size:12px;color:var(--muted);white-space:nowrap;
}
.drop-card a:hover{background:rgba(111,224,255,.08);color:var(--cyan)}
.drop-tag{font-family:var(--mono);font-size:9px;color:var(--dim)}

/* ---------- shared type ---------- */
.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--cyan);display:flex;align-items:center;gap:10px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.02em;line-height:1.25}
h1{font-size:clamp(38px,5.6vw,72px);letter-spacing:-.045em}
h2{font-size:clamp(26px,3.1vw,40px)}
h3{font-size:18px}
p{margin:0}
.lead{color:var(--muted);font-size:16px;line-height:1.9;max-width:760px}
.grad{background:linear-gradient(100deg,#fff 8%,var(--cyan) 55%,var(--blue) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.mono{font-family:var(--mono)}
.section{padding:96px 0;position:relative}
.section.tight{padding:64px 0}
.section-head{margin-bottom:44px}
.section-head .lead{margin-top:16px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-2) 15%,var(--line-2) 85%,transparent)}
.note{font-size:12px;color:var(--dim);line-height:1.8}
.kicker{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--cyan);border:1px solid rgba(111,224,255,.28);background:rgba(111,224,255,.055);padding:5px 11px;border-radius:999px}

/* ---------- hero ---------- */
.hero{padding:104px 0 74px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,4vw,58px);margin:20px 0 24px;line-height:1.32}
.hero h1.hero-title-long{font-size:clamp(28px,3.3vw,46px);letter-spacing:-.03em}
.hero .lead{font-size:17px}
.hero-sub{color:var(--muted);font-size:14px;margin-top:14px;max-width:640px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:36px}
.btn{
  display:inline-flex;align-items:center;gap:9px;border-radius:10px;padding:12px 20px;
  font-size:13px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:.2s;
}
.btn-primary{background:linear-gradient(100deg,var(--cyan),#59a8ff);color:#04121b;box-shadow:0 8px 30px rgba(111,224,255,.16)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(111,224,255,.26)}
.btn-ghost{background:rgba(255,255,255,.025);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn .arrow{font-family:var(--mono);font-size:14px}
.btn-static{cursor:default}
.btn-static:hover{transform:none}
.hero-meta{display:flex;gap:30px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap}
.hero-meta div{display:flex;flex-direction:column;gap:2px}
.hero-meta b{font-size:20px;font-weight:600;font-family:var(--mono);letter-spacing:-.02em}
.hero-meta span{font-size:11px;color:var(--dim);letter-spacing:.06em}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.chip{
  display:inline-flex;align-items:center;gap:9px;padding:9px 15px;border-radius:999px;
  border:1px solid var(--line-2);background:rgba(255,255,255,.025);color:var(--text);
  font-size:13px;cursor:pointer;transition:.2s;
}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 9px var(--cyan)}
.chip:hover{border-color:var(--cyan);background:rgba(111,224,255,.07);transform:translateY(-2px)}
.chip .tag{font-family:var(--mono);font-size:9px;color:var(--dim);letter-spacing:.1em;padding-left:8px;border-left:1px solid var(--line-2)}
.chip.planning{border-style:dashed;background:transparent;color:var(--muted)}
.chip.planning::before{background:var(--dim);box-shadow:none}
.chip.planning:hover{border-color:var(--dim);color:var(--text);background:rgba(255,255,255,.02)}
.chip.planning .tag{color:var(--dim)}

/* ---------- image placeholder ---------- */
.ph{
  position:relative;min-height:230px;border-radius:var(--r);
  border:1px dashed rgba(255,255,255,.2);
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.022) 0 9px,transparent 9px 18px),
             linear-gradient(160deg,rgba(75,125,255,.06),rgba(0,0,0,0));
  display:grid;place-items:center;overflow:hidden;
}
.ph::before{
  content:"IMG / PLACEHOLDER";position:absolute;top:14px;left:16px;
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:var(--dim);
}
.ph::after{
  content:attr(data-label);font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  color:var(--muted);text-align:center;padding:0 24px;
}
.ph .ph-frame{position:absolute;inset:44px;border:1px solid rgba(255,255,255,.07);border-radius:6px}
.ph.sq{min-height:300px}
.ph.sm{min-height:150px}
.hero-ph{min-height:340px}

/* ---------- generic panel ---------- */
.panel{background:linear-gradient(160deg,var(--panel),rgba(8,12,19,.6));border:1px solid var(--line);border-radius:var(--r);padding:28px}
.panel-hover:hover{border-color:var(--line-2)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}

/* ---------- hierarchy tree ---------- */
.tree{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:32px 34px}
.tree-root{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:650;padding-bottom:20px;border-bottom:1px solid var(--line)}
.tree-root .dot{width:10px;height:10px;border-radius:3px;background:linear-gradient(135deg,var(--cyan),var(--blue));box-shadow:0 0 14px rgba(111,224,255,.5)}
.tree-root small{font-family:var(--mono);font-size:11px;color:var(--dim);font-weight:400;letter-spacing:.1em}
.tree ul{list-style:none;margin:0;padding:0}
.tree > ul > li{position:relative;padding-left:34px;padding-top:24px}
.tree > ul > li::before{content:"";position:absolute;left:9px;top:0;bottom:-24px;width:1px;background:var(--line-2)}
.tree > ul > li:last-child::before{bottom:50%}
.tree > ul > li::after{content:"";position:absolute;left:9px;top:38px;width:24px;height:1px;background:var(--line-2)}
.tree-line{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.tree-line b{font-size:15px;font-weight:600}
.tree-line span{font-size:12px;color:var(--muted)}
.tree-kids{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tree-kid{
  font-family:var(--mono);font-size:12px;padding:6px 11px;border-radius:8px;
  background:rgba(75,125,255,.09);border:1px solid rgba(75,125,255,.22);color:#c9dcff;
}
.tree-kid.plan{border-style:dashed;background:rgba(255,255,255,.02);border-color:var(--line-2);color:var(--dim)}
.tree-kid .s{font-size:10px;color:var(--dim);margin-left:8px}

/* ---------- product entries ---------- */
.plist{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.pcard{
  display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:26px;transition:.22s;position:relative;overflow:hidden;
}
.pcard:hover{border-color:rgba(111,224,255,.4);transform:translateY(-3px)}
.pcard .idx{font-family:var(--mono);font-size:11px;color:var(--dim);letter-spacing:.14em}
.pcard h3{margin:12px 0 10px;font-size:20px}
.pcard p{color:var(--muted);font-size:13px;line-height:1.85}
.pcard .go{display:inline-flex;gap:8px;align-items:center;margin-top:18px;font-size:12px;color:var(--cyan);font-family:var(--mono)}
.pcard.feature{background:linear-gradient(150deg,rgba(75,125,255,.14),var(--panel) 65%);border-color:rgba(111,224,255,.24)}

/* ---------- brand line & zone nav ---------- */
.brandline{
  display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:22px;
  padding:7px 15px;border:1px solid var(--line-2);border-radius:999px;
  background:rgba(255,255,255,.025);font-family:var(--mono);font-size:11px;
  letter-spacing:.08em;color:var(--dim);
}
.brandline b{color:var(--text);font-family:var(--sans);font-weight:600;letter-spacing:.02em}
.brandline .sep{color:var(--cyan)}
.zone-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.zone-nav a{
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--muted);
  border:1px solid var(--line-2);padding:7px 13px;border-radius:999px;transition:.2s;
}
.zone-nav a:hover{color:var(--cyan);border-color:var(--cyan);background:rgba(111,224,255,.06)}

/* ---------- product zones + booth image slots ---------- */
.zone{padding:64px 0;border-top:1px solid var(--line);scroll-margin-top:88px}
.zone-grid{display:grid;grid-template-columns:340px minmax(0,1fr);gap:44px;align-items:center}
.zone.reverse .zone-grid{grid-template-columns:minmax(0,1fr) 340px}
.zone.reverse .zone-info{order:2}
.zone.reverse .zone-ph{order:1}
.zone-info .znum{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--cyan)}
.zone-info .zline{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--dim);margin-top:10px}
.zone-info h2{font-size:clamp(26px,3vw,38px);margin:14px 0 16px}
.zone-info .zone-desc{font-size:16px;line-height:1.9;color:var(--muted)}
.zone-info .btn{margin-top:26px}
.booth{
  position:relative;min-height:300px;border-radius:16px;overflow:hidden;
  border:1px dashed rgba(255,255,255,.22);
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.022) 0 9px,transparent 9px 18px),
             linear-gradient(150deg,rgba(75,125,255,.08),rgba(0,0,0,0));
  display:grid;place-items:center;
}
.booth::before{
  content:"BOOTH / 展位图";position:absolute;top:16px;left:18px;
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:var(--dim);
}
.booth::after{
  content:attr(data-label);font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  color:var(--muted);text-align:center;padding:0 24px;
}
.booth .booth-frame{position:absolute;inset:52px;border:1px solid rgba(255,255,255,.07);border-radius:8px}
.booth-cap{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:12px;
  font-family:var(--mono);font-size:11px;color:var(--dim);
}
.booth-cap b{color:var(--muted);font-weight:400}

/* ---------- architecture (S2 focus) ---------- */
.arch-wrap{position:relative;border-radius:20px;padding:1px;background:linear-gradient(120deg,rgba(111,224,255,.45),rgba(75,125,255,.12) 45%,rgba(255,179,92,.32));box-shadow:0 30px 90px rgba(0,0,0,.55),0 0 80px rgba(75,125,255,.10)}
.arch{
  position:relative;border-radius:19px;padding:38px 38px 30px;overflow:hidden;
  background:radial-gradient(700px 320px at 50% -10%,rgba(75,125,255,.15),transparent 70%),#080d15;
}
.arch::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:36px 36px;
}
.arch > *{position:relative;z-index:2}
.arch-top{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.arch-top .lbl{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--cyan)}
.arch-top .cap{font-size:12px;color:var(--dim)}
.arch-flow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:30px}
.flow-node{
  padding:8px 13px;border-radius:8px;font-size:12px;font-family:var(--mono);
  border:1px solid var(--line-2);background:rgba(255,255,255,.03);color:var(--muted);white-space:nowrap;
}
.flow-node.hot{border-color:rgba(111,224,255,.45);color:var(--text);background:rgba(111,224,255,.08)}
.flow-arrow{color:var(--cyan);font-family:var(--mono);font-size:13px;opacity:.8}
.arch-stack{position:relative;display:grid;gap:12px}
.arch-layer{
  position:relative;z-index:2;border-radius:12px;padding:20px 24px;
  border:1px solid rgba(111,224,255,.16);display:grid;grid-template-columns:170px 1fr;gap:22px;align-items:center;
}
.arch-layer.l1{background:linear-gradient(100deg,rgba(75,125,255,.13),rgba(75,125,255,.035));border-color:rgba(111,224,255,.18)}
.arch-layer.l2{background:linear-gradient(100deg,rgba(75,125,255,.24),rgba(75,125,255,.075));border-color:rgba(111,224,255,.28)}
.arch-layer.l3{background:linear-gradient(100deg,rgba(75,125,255,.36),rgba(75,125,255,.11));border-color:rgba(111,224,255,.38)}
.arch-layer .lname{display:flex;flex-direction:column;gap:3px}
.arch-layer .lname b{font-size:15px}
.arch-layer .lname span{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--dim)}
.arch-tags{display:flex;flex-wrap:wrap;gap:7px}
.arch-tags span{font-size:12px;color:#cfdbef;background:rgba(255,255,255,.045);border:1px solid var(--line);padding:5px 10px;border-radius:6px}
.host-lines{position:absolute;inset:0;z-index:3;pointer-events:none}
.host-lines i{position:absolute;top:-16px;bottom:-16px;border-left:1px dashed rgba(255,179,92,.32)}
.arch-host{
  position:relative;z-index:4;margin-top:16px;border-radius:12px;padding:18px 22px 20px;
  border:1px solid rgba(255,179,92,.55);
  background:linear-gradient(100deg,rgba(255,179,92,.19),rgba(255,179,92,.06));
  box-shadow:0 0 40px rgba(255,179,92,.10) inset;
}
.arch-host .hh{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.arch-host .hh b{font-size:14px;color:#ffd6a4;letter-spacing:.02em}
.arch-host .hh span{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:rgba(255,214,164,.65)}
.host-items{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.host-items div{
  text-align:center;font-size:12px;padding:9px 4px;border-radius:7px;
  background:rgba(255,179,92,.09);border:1px solid rgba(255,179,92,.22);color:#ffd9ae;white-space:nowrap;
}
.arch-foot{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:22px;font-size:12px;color:var(--dim)}
.arch-foot b{color:var(--amber);font-weight:500}

/* ---------- module matrix ---------- */
.matrix{border-top:1px solid var(--line-2)}
.mrow{border-bottom:1px solid var(--line);scroll-margin-top:100px}
.mrow[data-planning]{border-left:2px dashed var(--dim)}
.mrow-head{
  width:100%;display:grid;grid-template-columns:44px 190px 1fr 190px 24px;gap:14px;align-items:center;
  background:transparent;border:0;color:inherit;text-align:left;cursor:pointer;padding:24px 10px;
}
.mrow-head:hover{background:rgba(255,255,255,.018)}
.mrow .num{font-family:var(--mono);font-size:12px;color:var(--dim)}
.mrow .mname{font-size:19px;font-weight:600;letter-spacing:-.01em}
.mrow .mpos{color:var(--muted);font-size:13px}
.mrow .mstate{text-align:right}
.mrow .chev{font-family:var(--mono);color:var(--dim);transition:transform .25s;font-size:16px}
.mrow.open .chev{transform:rotate(90deg);color:var(--cyan)}
.badge{display:inline-flex;align-items:center;gap:7px;font-size:11px;font-family:var(--mono);padding:5px 10px;border-radius:999px;white-space:nowrap}
.badge::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}
.badge.ok{color:var(--cyan);border:1px solid rgba(111,224,255,.3);background:rgba(111,224,255,.06)}
.badge.plan{color:var(--dim);border:1px dashed var(--line-2);background:transparent}
.badge.pending{color:var(--amber);border:1px solid rgba(255,179,92,.3);background:rgba(255,179,92,.06)}
.badge.beta{color:var(--amber);border:1px solid rgba(255,179,92,.35);background:rgba(255,179,92,.07)}
.mrow-body{display:none;padding:0 10px 30px 58px}
.mrow.open .mrow-body{display:block;animation:fade .3s ease}
@keyframes fade{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.fields{border:1px solid var(--line);border-radius:10px;overflow:hidden}
.field{display:grid;grid-template-columns:120px 1fr;gap:20px;padding:13px 18px;border-bottom:1px solid var(--line);font-size:13px;line-height:1.8}
.field:last-child{border-bottom:0}
.field .k{font-family:var(--mono);font-size:11px;color:var(--dim);letter-spacing:.08em;padding-top:3px}
.field .v{color:#cfd9e8}
.matrix-note{margin-top:18px;font-size:12px;color:var(--dim)}

/* ---------- mechanisms ---------- */
.mech{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.mech-diagram{position:sticky;top:100px}
.mech-svg{width:100%;height:auto;display:block}
.mech-list{display:grid;gap:0;border-top:1px solid var(--line-2)}
.mech-item{display:grid;grid-template-columns:46px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.mech-item .n{font-family:var(--mono);font-size:14px;color:var(--cyan);opacity:.8}
.mech-item h3{font-size:16px;margin-bottom:7px}
.mech-item p{font-size:13px;color:var(--muted);line-height:1.8}
.mech-item .solve{margin-top:9px;font-size:12px;color:var(--dim);border-left:2px solid rgba(111,224,255,.35);padding-left:12px}
.mech-item .solve b{color:var(--cyan);font-weight:500}

/* ---------- tables ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);border-right:1px solid var(--line);font-size:13px}
th:last-child,td:last-child{border-right:0}
tbody tr:last-child td{border-bottom:0}
thead th{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--cyan);font-weight:500;background:rgba(111,224,255,.035)}
thead th small{display:block;color:var(--dim);font-size:10px;letter-spacing:0;margin-top:4px;font-family:var(--sans)}
tbody th{font-weight:600;font-size:14px;color:var(--text);white-space:nowrap}
tbody tr:hover td{background:rgba(255,255,255,.012)}
.tbc{color:var(--dim);font-family:var(--mono);font-size:11px;white-space:nowrap}
.tbc i{display:inline-block;width:9px;height:9px;border:1px solid var(--dim);border-radius:50%;margin-right:8px;vertical-align:-1px}
.ok-cell,.beta-cell{font-family:var(--mono);font-size:12px;white-space:nowrap}
.ok-cell{color:var(--cyan)}
.beta-cell{color:var(--amber)}
tr.plan-row th{color:var(--dim)}
.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:16px;font-size:11px;color:var(--dim);font-family:var(--mono)}
.legend span::before{content:"";display:inline-block;width:8px;height:8px;border-radius:2px;background:var(--dim);margin-right:7px;opacity:.5}
.warnbar{
  display:flex;gap:14px;align-items:flex-start;padding:16px 20px;border-radius:10px;
  border:1px solid rgba(255,179,92,.35);background:rgba(255,179,92,.06);margin-bottom:22px;
}
.warnbar .ic{font-family:var(--mono);color:var(--amber);font-size:14px;line-height:1.6}
.warnbar p{font-size:13px;color:#e9cfae;line-height:1.8}
.warnbar p b{color:var(--amber);font-weight:600}

/* ---------- steps & code ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:36px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:24px;position:relative;overflow:hidden}
.step::after{content:"";position:absolute;top:0;left:0;width:38px;height:1px;background:var(--cyan)}
.step .sn{font-family:var(--mono);font-size:26px;color:rgba(111,224,255,.4);letter-spacing:-.04em}
.step h3{margin:10px 0 8px;font-size:15px}
.step p{font-size:12px;color:var(--muted);line-height:1.85}
.code-cmp{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.code{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#070a10}
.code-head{display:flex;align-items:center;gap:8px;padding:11px 16px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.code-head i{width:8px;height:8px;border-radius:50%;background:var(--dim);opacity:.55}
.code-head .t{font-family:var(--mono);font-size:11px;color:var(--muted);margin-left:8px}
.code-head .tag{margin-left:auto;font-family:var(--mono);font-size:10px;padding:3px 8px;border-radius:4px}
.code-head .tag.before{color:var(--dim);background:rgba(255,255,255,.04)}
.code-head .tag.after{color:var(--cyan);background:rgba(111,224,255,.09)}
pre{margin:0;padding:20px;overflow-x:auto;font-family:var(--mono);font-size:12px;line-height:1.95;color:#b9c7da}
.k{color:var(--violet)}.s{color:var(--green)}.c{color:var(--dim)}.f{color:var(--cyan)}

/* ---------- CTA / footer ---------- */
.cta-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.cta-card{
  border:1px solid var(--line-2);border-radius:var(--r);padding:34px;
  background:linear-gradient(145deg,rgba(75,125,255,.10),var(--panel) 70%);position:relative;overflow:hidden;
}
.cta-card.alt{background:linear-gradient(145deg,rgba(111,224,255,.07),var(--panel) 70%)}
.cta-card h3{font-size:22px;margin-bottom:12px}
.cta-card p{font-size:13px;color:var(--muted);line-height:1.9;max-width:420px}
.cta-card .btn{margin-top:26px}
.footer{border-top:1px solid var(--line);padding:40px 0 48px;margin-top:40px}
.footer-in{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.footer-links{display:flex;gap:22px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.footer-links a:hover{color:var(--cyan)}
.footer .note{max-width:560px}
.footer-beian{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);text-align:center;font-size:12px;font-family:var(--mono);letter-spacing:.02em}
.footer-beian a{color:var(--muted);text-decoration:none;transition:color .2s ease}
.footer-beian a:hover{color:var(--cyan)}

/* ---------- misc blocks ---------- */
.callout{border:1px solid var(--line);border-left:2px solid var(--cyan);border-radius:0 10px 10px 0;padding:18px 22px;background:rgba(111,224,255,.035);font-size:13px;color:var(--muted);line-height:1.9}
.callout b{color:var(--text);font-weight:600}
.pending-list{display:grid;gap:10px;margin-top:18px}
.pending-list div{display:flex;gap:12px;align-items:flex-start;font-size:13px;color:var(--muted);padding:12px 16px;border:1px dashed var(--line-2);border-radius:8px}
.pending-list .q{font-family:var(--mono);color:var(--amber);font-size:11px;padding-top:2px}
.numlist{counter-reset:n;display:grid;gap:12px;margin-top:20px}
.numlist div{display:flex;gap:14px;font-size:13px;color:var(--muted);line-height:1.85}
.numlist div::before{counter-increment:n;content:counter(n,decimal-leading-zero);font-family:var(--mono);color:var(--cyan);font-size:11px;padding-top:3px;flex:0 0 24px}
.vs{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.vs-col{border:1px solid var(--line);border-radius:var(--r);padding:26px;background:var(--panel)}
.vs-col h3{font-size:19px;margin-bottom:6px}
.vs-col .sub{font-family:var(--mono);font-size:11px;color:var(--dim);margin-bottom:18px}
.vs-col p{font-size:13px;color:var(--muted);line-height:1.9}
.vs-col ul{margin:16px 0 0;padding-left:18px;color:var(--muted);font-size:13px;line-height:2}
.vs-col ul b{color:var(--text);font-weight:600}
.kv{display:grid;grid-template-columns:110px 1fr;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:13px}
.kv:last-child{border-bottom:0}
.kv .k{font-family:var(--mono);font-size:11px;color:var(--dim);letter-spacing:.08em;padding-top:3px}
.kv .v{color:#cfd9e8}
.flow-strip{display:flex;align-items:stretch;gap:0;flex-wrap:wrap;margin-top:26px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel)}
.flow-strip .node{flex:1;min-width:170px;padding:24px 22px;border-right:1px solid var(--line);position:relative}
.flow-strip .node:last-child{border-right:0}
.flow-strip .node .t{font-family:var(--mono);font-size:10px;color:var(--cyan);letter-spacing:.14em;margin-bottom:10px}
.flow-strip .node b{display:block;font-size:15px;margin-bottom:8px}
.flow-strip .node p{font-size:12px;color:var(--muted);line-height:1.8}
.flow-strip .node.hl{background:rgba(255,179,92,.07)}
.flow-strip .node.hl .t{color:var(--amber)}

/* ---------- reveal ---------- */
/* Content is always visible: scroll-reveal is intentionally not used, so the
   page renders identically in headless previews, embedded webviews and browsers
   with restricted scripting. */
.reveal,.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1020px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .mech{grid-template-columns:1fr;gap:32px}
  .mech-diagram{position:static;max-width:520px}
  .mrow-head{grid-template-columns:36px 150px 1fr 20px}
  .mrow .mstate{display:none}
  .host-items{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .zone-grid,.zone.reverse .zone-grid{grid-template-columns:1fr;gap:26px}
  .zone.reverse .zone-info{order:1}
  .zone.reverse .zone-ph{order:2}
  .zone-info .zone-desc{max-width:none}
}
@media(max-width:760px){
  .container{width:min(100% - 32px,1180px)}
  .nav-in{gap:16px}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;background:rgba(5,7,11,.98);border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 4px;border-bottom:1px solid var(--line)}
  .nav-links a.active::after{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:block}
  .nav-group{display:block;height:auto}
  .nav-drop{position:static;display:block;padding:0 0 6px 14px;min-width:0}
  .drop-card{border:0;background:transparent;box-shadow:none;padding:0}
  .drop-label{padding:7px 4px 4px}
  .drop-card a{padding:7px 4px;border-bottom:1px solid var(--line)}
  .section{padding:68px 0}
  .hero{padding:70px 0 56px}
  .grid-2,.grid-3,.grid-4,.plist,.steps,.code-cmp,.cta-grid,.vs{grid-template-columns:1fr}
  .arch{padding:24px 18px}
  .arch-layer{grid-template-columns:1fr;gap:12px;padding:16px}
  .mrow-head{grid-template-columns:28px 1fr 20px;gap:10px;padding:20px 6px}
  .mrow .mpos{display:none}
  .mrow-body{padding:0 6px 24px}
  .field{grid-template-columns:88px 1fr;gap:12px;padding:11px 12px}
  .tree{padding:22px 18px}
  .arch-flow{gap:6px}
  .flow-node{font-size:11px;padding:6px 9px}
  .host-items{grid-template-columns:repeat(2,1fr)}
  .zone{padding:44px 0}
  .booth{min-height:220px}
  .booth .booth-frame{inset:40px}
  .zone-info h2{font-size:28px}
  .zone-info .zone-desc{font-size:15px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.reveal.in{opacity:1;transform:none;transition:none;animation:none}
  *{animation-duration:.001s!important;transition-duration:.001s!important}
}