/* ============================================================
   Strata — card-based, paper-white Halo theme product page
   ============================================================ */
:root{
  --ink:#111111;
  --ink-2:#3f3f3c;
  --muted:#6b6b6b;
  --faint:#9a9a9a;
  --line:#e6e6e2;
  --line-2:#efefeb;
  --bg:#faf9f6;
  --card:#ffffff;
  --blue:#2f6feb;
  --blue-deep:#2459c9;
  --blue-soft:#eef2ff;
  --violet:#7c5cff;
  --teal:#0f9d8a;
  --amber:#e08c07;
  --r:16px;
  --max:1180px;
  --sans:"Inter","HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",ui-monospace,"Cascadia Code",Consolas,"Courier New",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:15px;line-height:1.72;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(880px 520px at 84% -8%,rgba(47,111,235,.10),transparent 66%),
    radial-gradient(680px 420px at 2% 6%,rgba(17,17,17,.045),transparent 70%),
    linear-gradient(180deg,#fbfaf7,#faf9f6 60%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:radial-gradient(rgba(17,17,17,.085) 1px,transparent 1px);
  background-size:24px 24px;opacity:.32;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 620px);
  mask-image:linear-gradient(180deg,#000,transparent 620px);
}
a{color:inherit;text-decoration:none}
section[id]{scroll-margin-top:86px}
code{font-family:var(--mono);font-size:.88em;background:#f4f2ec;border:1px solid #e8e5dd;border-radius:5px;padding:1px 5px;color:#3b3a36}
h1,h2,h3,h4{letter-spacing:-.03em;line-height:1.2;margin:0}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:99}
.skip:focus{left:0}

/* ---------------- nav ---------------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(250,249,246,.8);
  backdrop-filter:blur(16px) saturate(1.4);
  -webkit-backdrop-filter:blur(16px) saturate(1.4);
  border-bottom:1px solid transparent;
  transition:border-color .3s,background .3s;
}
.nav.is-stuck{border-bottom-color:var(--line);background:rgba(255,255,255,.9)}
.nav-inner{
  max-width:var(--max);margin:0 auto;height:68px;
  padding:0 clamp(18px,4vw,32px);
  display:flex;align-items:center;gap:28px;
}
.nav-brand{display:flex;align-items:center;gap:10px;font-weight:640;font-size:14.5px;letter-spacing:-.01em}
.nav-brand .mark{display:block;width:30px;height:30px;object-fit:contain;flex:0 0 auto}
.nav-name{display:flex;align-items:baseline;gap:8px}
.nav-pkg{font-size:11px;color:var(--faint);font-weight:420;letter-spacing:0}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:13.5px;color:var(--ink-2)}
.nav-links a{position:relative;padding:6px 0;transition:color .2s}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1.5px;
  background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .28s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-act{display:flex;align-items:center;gap:10px}
.ver{font-family:var(--mono);font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 9px;background:#fff}

/* ---------------- buttons ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:11px;
  font-size:14px;font-weight:560;letter-spacing:-.005em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s,box-shadow .25s,background .2s,border-color .2s,color .2s;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(180deg,#3d7bf1,#2f6feb);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.22) inset,0 12px 26px -14px rgba(47,111,235,.8)}
.btn-primary:hover{box-shadow:0 1px 0 rgba(255,255,255,.22) inset,0 16px 32px -14px rgba(47,111,235,.9)}
.btn-line{background:#fff;border-color:#e0ddd5;color:var(--ink)}
.btn-line:hover{border-color:#cfcbc0;background:#fdfcf9}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-2);height:34px;padding:0 14px;font-size:13px;border-radius:9px}
.btn-ghost:hover{background:#fff;border-color:#d6d2c8;color:var(--ink)}
.btn-sm{height:34px;padding:0 14px;font-size:13px;border-radius:9px}

/* ---------------- hero ---------------- */
.hero{max-width:var(--max);margin:0 auto;padding:clamp(108px,12vw,152px) clamp(18px,4vw,32px) clamp(40px,5vw,64px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:clamp(32px,5vw,64px);align-items:start}
.hero-copy,.hero-panel{min-width:0}
.hero-copy{padding-top:22px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin:0 0 20px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--blue-deep);font-weight:600;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(47,111,235,.13)}
.hero h1{font-size:clamp(34px,4.7vw,56px);font-weight:680;letter-spacing:-.05em;line-height:1.12}
.hl{
  position:relative;white-space:nowrap;
  background:linear-gradient(180deg,#2459c9,#3f7bf0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hl::after{
  content:"";position:absolute;left:1%;right:1%;bottom:-.02em;height:3px;
  background:linear-gradient(90deg,var(--blue),rgba(47,111,235,.25));
  border-radius:2px;
}
.lead{margin:22px 0 0;max-width:33em;font-size:16px;line-height:1.82;color:var(--ink-2)}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero-dl{margin:13px 0 0;font-family:var(--mono);font-size:10.5px;color:var(--faint)}
.hero-dl code{font-size:10px;background:#f2f0ea;border-color:#e6e2d8;color:#5a564c;padding:0 5px}
.spec{
  display:grid;grid-template-columns:repeat(4,auto);gap:0 32px;
  margin:36px 0 0;padding:20px 0 0;border-top:1px solid var(--line);
  list-style:none;justify-content:start;
}
.spec li{display:flex;flex-direction:column;gap:2px}
.spec b{font-size:15px;letter-spacing:-.02em;font-weight:640;font-family:var(--mono)}
.spec span{font-size:11.5px;color:var(--faint);letter-spacing:.02em}
.hero-note{margin:24px 0 0;font-family:var(--mono);font-size:10.5px;color:var(--faint);letter-spacing:.01em}

/* ---------------- browser frame + mini site ---------------- */
.frame{
  border:1px solid #e2ded5;border-radius:14px;overflow:hidden;background:#fff;
  box-shadow:0 2px 4px rgba(17,17,17,.03),0 30px 60px -34px rgba(30,45,90,.32);
}
.frame-bar{display:flex;align-items:center;gap:10px;height:38px;padding:0 12px;background:#fbfaf7;border-bottom:1px solid #eae7df}
.frame-dots{display:flex;gap:5px;flex:0 0 auto}
.frame-dots i{width:8px;height:8px;border-radius:50%;background:#e6e2d9}
.frame-dots i:first-child{background:#ffc9c2}
.frame-url{
  flex:1 1 auto;max-width:230px;margin:0 auto;
  font-family:var(--mono);font-size:10px;color:#8b8578;
  background:#f3f1ea;border:1px solid #e9e5db;border-radius:5px;
  padding:2px 10px;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.frame-btn{
  flex:0 0 auto;width:26px;height:26px;display:grid;place-items:center;
  border:1px solid #e3dfd5;border-radius:7px;background:#fff;color:#5f5a50;cursor:pointer;
  transition:border-color .2s,background .2s,color .2s;
}
.frame-btn:hover{border-color:#cfc9bb;background:#fdfcf8;color:var(--blue-deep)}
.frame-btn .ico-sun{display:none}
.frame-btn[aria-pressed="true"] .ico-moon{display:none}
.frame-btn[aria-pressed="true"] .ico-sun{display:block}

.mini{
  --mbg:#faf9f6;--mcard:#ffffff;--mfg:#111111;--m2:#6b6b6b;--m3:#9a9a9a;
  --mline:#e6e6e2;--msink:#f3f2ee;--maccent:#2f6feb;
  background:var(--mbg);color:var(--mfg);padding:0 10px 12px;
  font-size:10px;line-height:1.5;transition:background .35s,color .35s;
}
.mini[data-theme="dark"]{
  --mbg:#0f0f10;--mcard:#171718;--mfg:#f2f2f2;--m2:#a6a6a6;--m3:#767676;
  --mline:#262628;--msink:#1e1e20;--maccent:#709bff;
}
.mini-logo{display:block;width:18px;height:18px;object-fit:contain}
.mini-logo--dark{display:none}
.mini[data-theme="dark"] .mini-logo--light{display:none}
.mini[data-theme="dark"] .mini-logo--dark{display:block}
.mini-top{display:flex;align-items:center;gap:12px;padding:10px 4px 9px;border-bottom:1px solid var(--mline)}
.mini-brand{display:flex;align-items:center;gap:5px;font-size:10.5px;font-weight:620;letter-spacing:-.01em}
.mini-menu{display:flex;gap:10px;margin-left:auto;font-size:8.5px;color:var(--m2)}
.mini-menu i{font-style:normal}
.mini-tools{display:flex;gap:6px}
.mini-tool{display:block;width:12px;height:12px;border:1px solid var(--mline);border-radius:3px;background:var(--mcard)}
.mini-banner{padding:20px 4px 12px}
.mini-banner h3{font-size:21px;font-weight:680;letter-spacing:-.045em}
.mini-rule{display:block;width:28px;height:3px;border-radius:2px;background:var(--maccent);margin:9px 0 8px}
.mini-banner p{margin:0;font-size:9.5px;color:var(--m2)}
.mini-body{display:grid;grid-template-columns:.82fr 2.1fr .82fr;gap:8px;align-items:start}
.mini-aside{display:grid;gap:8px;min-width:0}
.mini-main{display:grid;gap:8px;min-width:0}
.mini-card{background:var(--mcard);border:1px solid var(--mline);border-radius:7px;padding:8px;min-width:0}
.mini-profile img{display:block;width:24px;height:24px;border-radius:6px;object-fit:contain}
.mini-profile b{display:block;margin-top:5px;font-size:10px;font-weight:600;letter-spacing:-.01em}
.mini-profile span{display:block;font-size:8px;color:var(--m2);line-height:1.45;margin-top:1px}
.mini-label{display:flex;align-items:center;gap:4px;font-size:8.5px;color:var(--m2);margin-bottom:5px}
.mini-label::before{content:"";width:8px;height:2px;border-radius:1px;background:var(--maccent)}
.mini-row{display:flex;align-items:center;justify-content:space-between;gap:6px;font-size:8.5px;padding:3px 0;border-top:1px dashed var(--mline)}
.mini-row:first-of-type{border-top:0}
.mini-row span{color:var(--m2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mini-row b{font-weight:500;font-size:8.5px;color:var(--m3)}
.mini-chips{display:flex;flex-wrap:wrap;gap:4px}
.mini-chips span{border:1px dashed var(--mline);border-radius:999px;padding:2px 6px;font-size:7.5px;color:var(--m2);white-space:nowrap}
.mini-post{display:grid;grid-template-columns:1.55fr .95fr;gap:7px;align-items:start}
.mini-post-copy b{display:block;font-size:10.5px;line-height:1.35;font-weight:600;letter-spacing:-.01em}
.mini-post-copy span{
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  margin-top:3px;font-size:8px;line-height:1.5;color:var(--m2);
}
.mini-post-copy em,.mini-post--plain em{display:block;margin-top:4px;font-style:normal;font-family:var(--mono);font-size:7px;color:var(--m3)}
.mini-post--plain b{display:block;font-size:10.5px;line-height:1.35;font-weight:600}
.mini-post--plain span{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:3px;font-size:8px;line-height:1.5;color:var(--m2)}
.mini-cover{position:relative;min-height:74px;border-radius:5px;background:#0f0f10;overflow:hidden}
.mini-cover i{position:absolute;left:9px;height:4px;border-radius:2px;background:#3b3b3b}
.mini-cover i:nth-child(1){top:12px;width:52%}
.mini-cover i:nth-child(2){top:22px;width:40%;background:#2b2b2b}
.mini-cover span{position:absolute;right:8px;top:15px;width:22px;height:22px;border:1.5px solid var(--maccent);border-radius:50%}
.mini-stats{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.mini-stats b{display:block;font-size:11px;font-weight:600;letter-spacing:-.02em}
.mini-stats span{display:block;font-size:7px;color:var(--m3);margin-top:-1px}
.mini-tags{display:flex;flex-wrap:wrap;gap:4px}
.mini-tags span{border:1px solid var(--mline);border-radius:999px;padding:1px 5px;font-size:7.5px;color:var(--m2)}
.frame-note{margin:12px 2px 0;font-size:11px;color:var(--faint);text-align:center;display:flex;align-items:center;justify-content:center;gap:7px}
.frame-live{width:5px;height:5px;border-radius:50%;background:#12b886;box-shadow:0 0 0 3px rgba(18,184,134,.13)}

/* ---------------- section head ---------------- */
.sec-head{max-width:var(--max);margin:0 auto;padding:0 clamp(18px,4vw,32px)}
.sec-kicker{margin:0 0 12px;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:var(--blue-deep);text-transform:uppercase}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:660;letter-spacing:-.04em}
.sec-sub{margin:14px 0 0;font-size:15px;color:var(--muted);max-width:46em}

/* ---------------- look / lab ---------------- */
.look{max-width:var(--max);margin:0 auto;padding:clamp(56px,7vw,92px) clamp(18px,4vw,32px) 0}
.lab{
  --accent:#2f6feb;
  display:grid;grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr);
  gap:18px;margin-top:34px;align-items:stretch;
}
.lab-controls{
  border:1px solid var(--line);border-radius:var(--r);background:#fff;
  padding:4px 22px;display:flex;flex-direction:column;
}
.ctrl-block{padding:15px 0;border-bottom:1px solid var(--line-2)}
.ctrl-block--last{border-bottom:0}
.ctrl-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px}
.ctrl-head span,.range-head span{font-size:12.5px;font-weight:600;letter-spacing:-.01em}
.ctrl-head small{font-size:10.5px;color:var(--faint);font-weight:400}
.seg{display:flex;gap:3px;padding:3px;background:#f5f3ee;border:1px solid #ece9e1;border-radius:9px}
.seg button{
  flex:1 1 0;appearance:none;border:0;background:none;cursor:pointer;
  font-family:inherit;font-size:12px;color:var(--muted);
  padding:6px 4px;border-radius:7px;transition:background .2s,color .2s,box-shadow .2s;
}
.seg button:hover{color:var(--ink)}
.seg button.is-on{background:#fff;color:var(--blue-deep);font-weight:600;box-shadow:0 1px 2px rgba(17,17,17,.08)}
.swatch-row{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.swatch{
  display:flex;flex-direction:column;align-items:center;gap:5px;
  appearance:none;cursor:pointer;font-family:inherit;font-size:10px;color:var(--muted);
  background:#fff;border:1px solid var(--line);border-radius:8px;padding:7px 2px;
  transition:border-color .2s,box-shadow .2s,color .2s;
}
.swatch i{display:block;width:18px;height:18px;border-radius:50%;background:var(--sw,#fff);border:1px solid rgba(17,17,17,.08)}
.swatch i.swatch-tint{background:color-mix(in srgb,var(--accent) 12%,#fff)}
.swatch:hover{color:var(--ink)}
.swatch.is-on{border-color:var(--accent);color:var(--ink);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 14%,transparent)}
.dot-row{display:flex;gap:10px;align-items:center}
.dot{
  appearance:none;cursor:pointer;width:26px;height:26px;border-radius:50%;
  background:var(--dot);border:0;padding:0;
  box-shadow:0 0 0 1px var(--line);transition:transform .2s,box-shadow .2s;
}
.dot:hover{transform:scale(1.08)}
.dot.is-on{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--dot)}
.range-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:8px}
.range-head b{font-family:var(--mono);font-size:11px;color:var(--blue-deep);font-weight:600}
.range{display:block;width:100%;accent-color:var(--accent);cursor:pointer;margin:0}
.ctrl-tip{margin:7px 0 0;font-size:10.5px;line-height:1.6;color:var(--faint)}
.chip-row{display:flex;flex-wrap:wrap;gap:6px}
.chip{
  appearance:none;cursor:pointer;font-family:inherit;font-size:11.5px;color:var(--muted);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 11px;
  transition:border-color .2s,color .2s,background .2s;
}
.chip:hover{color:var(--ink);border-color:#d8d4c9}
.chip.is-on{color:var(--blue-deep);border-color:color-mix(in srgb,var(--accent) 45%,#fff);background:color-mix(in srgb,var(--accent) 7%,#fff);font-weight:600}

.lab-stage{display:flex;flex-direction:column;min-width:0}
.lab-preview{
  --soften:5%;--card-dim:0%;
  position:relative;overflow:hidden;min-height:470px;flex:1 1 auto;
  border:1px solid var(--line);border-radius:var(--r);
  background:#faf9f6;transition:background .4s,border-color .4s;
}
.lab-preview[data-theme="light"]{
  --page-preset:#faf9f6;--card-preset:#ffffff;
  --lab-fg:#111111;--lab-2:#6b6b6b;--lab-3:#9a9a9a;--lab-line:#e6e6e2;--lab-sink:#f3f2ee;
  --lab-page:color-mix(in srgb,var(--accent) calc(var(--soften) * .8),var(--page-preset));
  --lab-card:color-mix(in srgb,color-mix(in srgb,var(--accent) calc(var(--soften) * .45),var(--card-preset)) calc(100% - var(--card-dim)),#000);
  color:var(--lab-fg);background:var(--page-preset);background:var(--lab-page);
}
.lab-preview[data-theme="light"][data-light-bg="pure"]{--page-preset:#ffffff}
.lab-preview[data-theme="light"][data-light-bg="cool"]{--page-preset:#f5f7fa}
.lab-preview[data-theme="light"][data-light-bg="warm"]{--page-preset:#fbf8f2}
.lab-preview[data-theme="light"][data-light-bg="tint"]{--page-preset:color-mix(in srgb,var(--accent) 6%,#fff)}
.lab-preview[data-theme="dark"]{
  --lab-fg:#f2f2f2;--lab-2:#a6a6a6;--lab-3:#767676;--lab-line:#262628;--lab-sink:#1e1e20;
  --lab-page:#0f0f10;--lab-card:#171718;
  color:var(--lab-fg);background:var(--lab-page);border-color:#262628;
}
.lab-preview canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.lab-inner{position:relative;z-index:1;padding:16px 18px 18px}
.lab-nav{display:flex;align-items:center;gap:14px}
.lab-brand{display:flex;align-items:center;gap:5px;font-size:11px;font-weight:620;letter-spacing:-.01em}
.lab-brand img{display:block;width:16px;height:16px;object-fit:contain}
.lab-brand .lab-logo--dark{display:none}
.lab-preview[data-theme="dark"] .lab-brand .lab-logo--light{display:none}
.lab-preview[data-theme="dark"] .lab-brand .lab-logo--dark{display:block}
.lab-menu{display:flex;gap:11px;margin-left:auto;font-size:9px;color:var(--lab-2)}
.lab-menu i{font-style:normal}
.lab-search{font-size:9px;color:var(--lab-2);border:1px solid var(--lab-line);border-radius:999px;padding:2px 8px;background:var(--lab-card)}
.lab-hero{padding:20px 2px 12px}
.lab-hero b{display:block;font-size:19px;font-weight:660;letter-spacing:-.04em}
.lab-hero b::after{content:"";display:block;width:28px;height:3px;border-radius:2px;background:var(--accent);margin-top:8px}
.lab-hero span{display:block;margin-top:7px;font-family:var(--mono);font-size:8.5px;color:var(--lab-2)}
.lab-content{display:grid;grid-template-columns:minmax(0,2.15fr) minmax(0,.85fr);gap:9px;align-items:start}
.lab-side{display:grid;gap:9px;min-width:0}
.lab-card{background:var(--lab-card);border:1px solid var(--lab-line);border-radius:9px;padding:13px;min-width:0;transition:background .4s,border-color .4s}
.lab-eyebrow{font-family:var(--mono);font-size:8px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.lab-article h4{margin:5px 0 0;font-size:13px;font-weight:620;letter-spacing:-.02em}
.lab-line{display:block;height:5px;border-radius:3px;background:color-mix(in srgb,var(--lab-fg) 9%,transparent);margin-top:7px}
.lab-line--short{width:62%}
.lab-code{display:flex;flex-direction:column;gap:5px;margin:11px 0 3px;padding:9px;background:#0f0f10;border-radius:6px}
.lab-code-bar{display:flex;gap:3px;margin-bottom:2px}
.lab-code-bar i{width:4px;height:4px;border-radius:50%;background:#3a3a3a}
.lc{display:block;height:4px;width:72%;border-radius:2px;background:#2e2e2e}
.lc-key{width:42%;background:color-mix(in srgb,var(--accent) 70%,#fff)}
.lc-short{width:52%}
.lab-label{display:flex;align-items:center;gap:5px;font-size:8.5px;color:var(--lab-2);margin-bottom:6px}
.lab-label::before{content:"";width:9px;height:2px;border-radius:1px;background:var(--accent)}
.lab-toc a{display:block;font-size:8.5px;line-height:1.4;color:var(--lab-2);padding:3px 0 3px 8px;border-left:1.5px solid transparent;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lab-toc a.is-on{color:var(--lab-fg);border-left-color:var(--accent);font-weight:500}
.lab-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.lab-stats b{display:block;font-size:12px;font-weight:600;letter-spacing:-.02em}
.lab-stats span{display:block;font-size:7px;color:var(--lab-3);margin-top:-1px}
.lab-related{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:9px}
.lab-rel b{display:block;font-size:10.5px;font-weight:600;letter-spacing:-.01em;margin-bottom:2px;line-height:1.4}
.lab-rel > span{display:block;font-family:var(--mono);font-size:7.5px;color:var(--lab-3)}
.lab-end{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:9px;padding:12px 13px}
.lab-end b{display:block;font-size:10.5px;font-weight:600;letter-spacing:-.01em}
.lab-end > div > span{display:block;margin-top:2px;font-family:var(--mono);font-size:7.5px;color:var(--lab-3)}
.lab-end .lab-reward{
  display:inline-flex;align-items:center;font-family:var(--sans);font-size:9px;
  color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 35%,transparent);
  border-radius:999px;padding:2px 10px;margin-top:0;white-space:nowrap;
}
.lab-caption{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:10px;font-family:var(--mono);font-size:10px;color:var(--faint);flex-wrap:wrap}
.lab-foot{max-width:var(--max);margin:18px auto 0;padding:0 clamp(18px,4vw,32px);font-size:12px;color:var(--faint)}
.lab-foot b{color:var(--ink-2);font-weight:600}

/* ---------------- read ---------------- */
.read{max-width:var(--max);margin:0 auto;padding:clamp(60px,8vw,104px) clamp(18px,4vw,32px) 0}
.read-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px;margin-top:34px}
.rcard{
  grid-column:span 4;position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:24px;
  transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s,border-color .35s;
}
.rcard:hover{transform:translateY(-3px);border-color:#d7d3c9;box-shadow:0 26px 46px -34px rgba(30,45,90,.45)}
.rcard--wide{grid-column:span 7}
.rcard--narrow{grid-column:span 5}
.rcard h3{margin:9px 0 8px;font-size:17px;font-weight:640;letter-spacing:-.025em}
.rcard p{margin:0;font-size:13px;color:var(--muted);line-height:1.75}
.rnum{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:var(--blue)}
.toc-demo{margin-top:18px;padding:12px 14px;border:1px solid var(--line-2);border-radius:10px;background:#faf9f6}
.toc-line{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--muted);padding:4px 0}
.toc-line i{display:block;width:5px;height:5px;border-radius:50%;border:1px solid #c9c5ba;flex:0 0 auto}
.toc-line.is-on{color:var(--ink);font-weight:520}
.toc-line.is-on i{background:var(--blue);border-color:var(--blue)}
.toc-line--sub{padding-left:18px;font-size:11px}
.progress-demo{margin-top:22px}
.progress-track{height:6px;border-radius:999px;background:#efede7;overflow:hidden}
.progress-track span{display:block;height:100%;width:42%;border-radius:999px;background:linear-gradient(90deg,#5c8bf5,var(--blue))}
.progress-meta{display:flex;align-items:center;justify-content:space-between;margin-top:10px;font-family:var(--mono);font-size:10px;color:var(--faint)}
.backtop{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--line);border-radius:999px;padding:2px 9px;background:#fff;color:var(--ink-2)}
.lightbox-demo{position:relative;margin-top:18px}
.lb-shot{position:relative;height:96px;border-radius:10px;background:#0f0f10;overflow:hidden}
.lb-ring{position:absolute;right:16px;top:18px;width:38px;height:38px;border:2px solid var(--blue);border-radius:50%;opacity:.9}
.lb-bar{position:absolute;left:14px;top:22px;width:45%;height:6px;border-radius:3px;background:#3a3a3a}
.lb-bar--short{top:36px;width:30%;background:#2b2b2b}
.lb-hint{position:absolute;left:12px;bottom:9px;font-size:9px;color:#8b8b8b;font-family:var(--mono)}
.copy-demo{margin-top:18px;padding:11px 12px;border-radius:10px;background:#0f0f10}
.cd-bar{display:flex;align-items:center;gap:4px;margin-bottom:9px}
.cd-bar i{width:5px;height:5px;border-radius:50%;background:#3a3a3a}
.cd-bar em{margin-left:auto;font-style:normal;font-family:var(--mono);font-size:8px;color:#9fb3e8;border:1px solid #2a3350;border-radius:4px;padding:1px 6px;background:#161f38}
.cd-line{display:block;font-family:var(--mono);font-size:9.5px;color:#9aa6c4;line-height:1.9}
.cd-line b{color:#8fb3ff;font-weight:500}
.cd-line u{color:#7ee0c8;text-decoration:none}
.cd-line--short{width:60%}
.feed-demo{margin-top:18px;display:grid;gap:7px}
.feed-row{position:relative;border:1px solid var(--line-2);border-radius:8px;padding:8px 10px;background:#fff}
.feed-row span{display:block;height:5px;width:76%;border-radius:3px;background:#e8e6df}
.feed-row i{display:block;height:4px;width:52%;border-radius:3px;background:#f0eee8;margin-top:6px}
.feed-row i + i{width:34%;margin-top:5px}
.feed-loading{display:flex;justify-content:center;gap:4px;padding:3px 0 1px}
.feed-loading i{width:4px;height:4px;border-radius:50%;background:#c9c5ba;animation:dots 1.2s infinite}
.feed-loading i:nth-child(2){animation-delay:.15s}
.feed-loading i:nth-child(3){animation-delay:.3s}
@keyframes dots{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-2px)}}
.rcard--quote{grid-column:span 12;border:0;padding:clamp(30px,4vw,44px);background:linear-gradient(120deg,#101010,#152038 58%,#1c3661);color:#eef2ff;position:relative}
.rcard--quote::after{
  content:"";position:absolute;right:-70px;top:-80px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,111,235,.45),transparent 68%);pointer-events:none;
}
.rcard--quote blockquote{margin:0;font-size:clamp(21px,2.6vw,28px);line-height:1.5;letter-spacing:-.03em;font-weight:520;color:#fff}
.rcard--quote cite{display:block;margin-top:14px;font-style:normal;font-family:var(--mono);font-size:11.5px;color:#9fb0e8}

/* ---------------- templates ---------------- */
.pages{max-width:var(--max);margin:0 auto;padding:clamp(60px,8vw,104px) clamp(18px,4vw,32px) 0}
.tpl-grid{display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,.68fr);gap:18px;margin-top:34px;align-items:start}
.tpl-table-card{border:1px solid var(--line);border-radius:var(--r);background:#fff;overflow:hidden}
.table-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 20px;border-bottom:1px solid var(--line-2);background:#fbfaf7}
.table-head span{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:520px}
thead th{
  text-align:left;font-family:var(--mono);font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--faint);font-weight:500;padding:11px 20px;border-bottom:1px solid var(--line-2);background:#fff;
}
tbody td{padding:14px 20px;border-bottom:1px solid var(--line-2);font-size:12.5px;line-height:1.65;color:var(--muted);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody td:first-child{width:24%}
tbody td:nth-child(2){width:17%;white-space:nowrap;color:var(--ink-2)}
tbody td b{font-size:13px;font-weight:600;color:var(--ink)}
tbody tr:hover td{background:#fdfcf9}
.table-note{margin:0;padding:14px 20px 18px;border-top:1px solid var(--line-2);font-size:11.5px;line-height:1.7;color:var(--faint);background:#fbfaf7}
.tpl-blocks{border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(180deg,#fff,#fbfaf7);padding:26px}
.tpl-blocks h3{font-size:16px;font-weight:640;letter-spacing:-.02em}
.tpl-blocks > p{margin:10px 0 0;font-size:12.5px;line-height:1.75;color:var(--muted)}
.block-list{list-style:none;margin:18px 0 0;padding:0}
.block-list li{display:flex;flex-direction:column;gap:2px;padding:10px 0;border-bottom:1px dashed var(--line)}
.block-list b{font-family:var(--mono);font-size:10.5px;color:var(--blue-deep);letter-spacing:.02em;font-weight:600}
.block-list span{font-size:12px;color:var(--muted);line-height:1.6}
.meta-demo{margin-top:18px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fff}
.meta-demo span{display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
.meta-demo code{display:inline-block;margin-top:7px;font-size:11.5px;background:#f4f2ec;color:#3b3a36}
.tpl-note{margin:12px 0 0!important;font-size:11px!important;color:var(--faint)!important;line-height:1.7}

/* ---------------- install ---------------- */
.install{max-width:var(--max);margin:0 auto;padding:clamp(60px,8vw,104px) clamp(18px,4vw,32px) 0}
.install-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:18px;margin-top:34px;align-items:start}
.isteps{list-style:none;margin:0;padding:0}
.isteps li{display:flex;gap:16px;padding:17px 0;border-bottom:1px solid var(--line-2)}
.isteps li:first-child{padding-top:0}
.isteps li:last-child{border-bottom:0;padding-bottom:0}
.step-n{
  flex:0 0 auto;width:27px;height:27px;display:grid;place-items:center;
  border-radius:8px;background:var(--blue-soft);border:1px solid #e0e6ff;
  font-family:var(--mono);font-size:10px;color:var(--blue-deep);
}
.isteps h3{margin:2px 0 5px;font-size:14.5px;font-weight:640;letter-spacing:-.015em}
.isteps p{margin:0;font-size:12.5px;line-height:1.7;color:var(--muted)}
.cmd{margin-top:10px;padding:9px 12px;border-radius:8px;background:#0f0f10;overflow-x:auto}
.cmd code{background:none;border:0;padding:0;color:#c9d4f2;font-size:11px;white-space:nowrap}
.dl-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  font-family:var(--mono);font-size:11px;font-weight:500;color:var(--blue-deep);
  border:1px solid #dbe4fb;background:#f4f7ff;border-radius:8px;padding:6px 10px;
  transition:border-color .2s,background .2s,color .2s;
}
.dl-link:hover{border-color:#bcccf6;background:#edf2ff}
.notice{display:flex;gap:10px;margin-top:20px;padding:14px 16px;border:1px solid #f0e6cd;border-radius:12px;background:#fffaf0}
.notice-ic{
  flex:0 0 auto;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;
  background:#f6c453;color:#5b4007;font-size:11px;font-weight:700;margin-top:2px;
}
.notice p{margin:0;font-size:12.5px;line-height:1.7;color:#6b5a33}
.notice b{color:#4f3f1f}
.theme-tree{border:1px solid #1a1a1c;border-radius:var(--r);background:#0f0f10;overflow:hidden;box-shadow:0 26px 50px -38px rgba(10,16,35,.8)}
.tree-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;border-bottom:1px solid #242428;font-family:var(--mono);font-size:11px;color:#9a9a9a}
.tree-badge{color:#666}
.theme-tree pre{margin:0;padding:18px 16px;overflow-x:auto;font-size:10.5px;line-height:2;color:#a6a6a6}
.theme-tree code{background:none;border:0;padding:0;color:inherit;font-size:inherit}
.t-dir{color:#8fb3ff}
.t-file{color:#e6e6e2}
.t-f{color:#ffd28a}
.t-k{color:#6b6b6b}
.tree-note{margin:0;padding:0 16px 16px;font-size:10.5px;line-height:1.7;color:#7b7b7b}
.tree-note code{background:#1a1a1d;border-color:#2a2a2e;color:#a8bce8;font-size:10px}
.tree-dl{
  display:flex;align-items:center;justify-content:center;gap:7px;
  margin:0 16px 16px;padding:9px 12px;border:1px solid #2b3854;border-radius:8px;
  background:#141d33;color:#9fb3e8;font-family:var(--mono);font-size:10.5px;
  transition:background .2s,border-color .2s,color .2s;
}
.tree-dl:hover{background:#18233d;border-color:#3a4c72;color:#d6e2ff}

/* ---------------- notes ---------------- */
.notes{max-width:var(--max);margin:0 auto;padding:clamp(60px,8vw,104px) clamp(18px,4vw,32px) 0}
.notes-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:34px}
.note-col{padding:26px;border-radius:var(--r);border:1px solid var(--line);background:#fff}
.note-col:first-child{background:linear-gradient(180deg,#fbfcff,#fff);border-color:#dfe6f8}
.note-col--limits{background:linear-gradient(180deg,#fffcfb,#fff);border-color:#f0e3e0}
.note-col h3{font-size:14px;letter-spacing:.02em;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.note-col h3::before{content:"";width:7px;height:7px;border-radius:2px;background:#12b886}
.note-col--limits h3::before{background:#e07856}
.note-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.note-col li{position:relative;padding-left:16px;font-size:13px;color:var(--ink-2);line-height:1.7}
.note-col li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;border-radius:50%;background:#c9c5ba}
.note-col code{font-size:10.5px}

/* ---------------- cta ---------------- */
.cta{max-width:var(--max);margin:clamp(60px,8vw,104px) auto 0;padding:0 clamp(18px,4vw,32px)}
.cta-inner{
  position:relative;overflow:hidden;border-radius:24px;padding:clamp(34px,5vw,58px);
  background:linear-gradient(118deg,#eef2ff,#faf9f6 48%,#eef7ff);
  border:1px solid #e0e7fb;text-align:center;
}
.cta-mark{position:absolute;right:-30px;top:-30px;width:230px;height:230px;pointer-events:none;opacity:.5}
.cta-mark i{position:absolute;border:1.5px solid rgba(47,111,235,.3);border-radius:30px;background:rgba(255,255,255,.28)}
.cta-mark i:nth-child(1){inset:0}
.cta-mark i:nth-child(2){inset:32px}
.cta-mark i:nth-child(3){inset:64px;border-color:rgba(17,17,17,.14)}
.cta-inner h2{position:relative;font-size:clamp(24px,3vw,32px);font-weight:660;letter-spacing:-.04em}
.cta-inner p{position:relative;margin:12px auto 0;max-width:38em;font-size:14px;color:var(--ink-2);line-height:1.8}
.cta-act{position:relative;display:flex;gap:12px;justify-content:center;margin-top:26px;flex-wrap:wrap}

/* ---------------- footer ---------------- */
.foot{max-width:var(--max);margin:0 auto;padding:clamp(48px,6vw,80px) clamp(18px,4vw,32px) 40px}
.foot-top{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;padding-bottom:26px;border-bottom:1px solid var(--line)}
.foot-kicker{margin:0;font-family:var(--mono);font-size:12px;color:var(--ink-2)}
.foot-desc{margin:6px 0 0;font-size:13px;color:var(--muted)}
.foot-links{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:var(--ink-2);align-items:flex-start}
.foot-links a:hover{color:var(--blue-deep)}
.foot-copy{margin:22px 0 0;font-size:11.5px;color:var(--faint)}

/* ---------------- reveal ---------------- */
.rv{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.is-in{opacity:1;transform:none}

/* ---------------- responsive ---------------- */
@media (max-width:1080px){
  .read-grid .rcard,.rcard--wide,.rcard--narrow{grid-column:span 6}
  .rcard--quote{grid-column:span 12}
}
@media (max-width:960px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:44px}
  .hero-copy{max-width:680px;padding-top:0}
  .hero-panel{max-width:660px;width:100%}
  .nav-links{display:none}
  .nav-act{margin-left:auto}
  .lab{grid-template-columns:1fr}
  .lab-controls{display:grid;grid-template-columns:1fr 1fr;gap:0 26px;padding:4px 22px}
  .ctrl-block:nth-last-child(-n+2){border-bottom:0}
  .tpl-grid,.install-grid{grid-template-columns:minmax(0,1fr)}
  .notes-grid{grid-template-columns:1fr}
  .spec{grid-template-columns:repeat(4,auto);gap:16px 26px}
}
@media (max-width:760px){
  .read-grid .rcard,.rcard--wide,.rcard--narrow{grid-column:span 12}
  .lab-controls{grid-template-columns:1fr;gap:0;padding:4px 20px}
  .ctrl-block{border-bottom:1px solid var(--line-2)!important}
  .ctrl-block--last{border-bottom:0!important}
  .lab-preview{min-height:0}
  .lab-content{grid-template-columns:minmax(0,1fr)}
  .lab-side{grid-template-columns:1fr 1fr}
  .spec{grid-template-columns:repeat(2,auto);gap:16px 32px}
  .hero h1{letter-spacing:-.04em}
}
@media (max-width:620px){
  body{font-size:14.5px}
  .nav-inner{height:60px}
  .nav-pkg,.ver{display:none}
  .hero{padding-top:92px}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
  .frame-url{max-width:130px}
  .mini-body{grid-template-columns:minmax(0,1fr)}
  .mini-aside{display:none}
  .mini-menu i:nth-child(n+4){display:none}
  .mini-banner{padding-top:16px}
  .lab-inner{padding:14px}
  .lab-hero b{font-size:17px}
  .lab-menu{display:none}
  .swatch-row{grid-template-columns:repeat(5,1fr);gap:5px}
  .tpl-blocks{padding:22px}
  .note-col{padding:22px}
  .foot-top{flex-direction:column;gap:18px}
  .foot-links{gap:16px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}