/* ============================================================
   正體輸入 Lab — stylesheet
   No external dependencies. Dark, premium, commercial.
   ============================================================ */

:root{
  --bg:#070a14;
  --bg-2:#0c1120;
  --bg-3:#11182b;
  --surface:#141c30;
  --surface-2:#1a2440;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --text:#eef2fb;
  --muted:#9aa6c4;
  --faint:#6b7799;

  --teal:#2dd4bf;        /* Rime accent */
  --teal-2:#14b8a6;
  --cyan:#22d3ee;
  --gold:#fbbf24;
  --blue:#5b8cff;        /* Microsoft accent */
  --green:#34d399;
  --yellow:#facc15;
  --red:#f87171;

  --grad: linear-gradient(120deg,#2dd4bf 0%,#22d3ee 45%,#7c9bff 100%);
  --radius:18px;
  --radius-sm:12px;
  --maxw:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 24px 60px -28px rgba(0,0,0,.85);

  --font: "Microsoft JhengHei","PingFang TC","Noto Sans TC","Segoe UI",
          system-ui,-apple-system,"Helvetica Neue",sans-serif;
  --serif:"Noto Serif TC","Songti TC","DFKai-SB",serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
code{
  font-family:"Cascadia Code","SF Mono",Consolas,monospace;
  font-size:.86em;
  background:rgba(45,212,191,.12);
  color:var(--teal);
  padding:.1em .45em;
  border-radius:6px;
  border:1px solid rgba(45,212,191,.18);
}
kbd{
  font-family:inherit;font-size:.82em;font-weight:700;
  background:var(--surface-2);border:1px solid var(--line-2);
  border-bottom-width:2px;border-radius:7px;padding:.12em .5em;
  color:var(--text);
}
::selection{background:rgba(45,212,191,.3);color:#fff}

/* ---------- NAV ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:rgba(7,10,20,.78);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav__inner{
  max-width:var(--maxw);margin:0 auto;padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:.5px}
.brand__mark{
  width:38px;height:38px;display:grid;place-items:center;
  font-family:var(--serif);font-size:21px;font-weight:700;color:#06281f;
  background:var(--grad);border-radius:11px;
  box-shadow:0 8px 22px -8px rgba(45,212,191,.6);
}
.brand__text{font-size:18px}
.brand__text em{font-style:normal;color:var(--teal);font-weight:800}
.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{font-size:14.5px;color:var(--muted);font-weight:600;transition:color .25s}
.nav__links a:hover{color:var(--text)}
.nav__cta{
  background:var(--grad);color:#06281f !important;font-weight:800;
  padding:9px 18px;border-radius:10px;
  box-shadow:0 10px 26px -12px rgba(45,212,191,.7);
}
.nav__cta:hover{transform:translateY(-1px)}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav__burger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* ---------- HERO ---------- */
.hero{position:relative;padding:170px 24px 96px;overflow:hidden}
.hero__glow{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(680px 420px at 18% 8%,rgba(45,212,191,.18),transparent 60%),
    radial-gradient(720px 500px at 88% 22%,rgba(91,140,255,.15),transparent 62%),
    radial-gradient(600px 600px at 60% 100%,rgba(34,211,238,.08),transparent 60%);
}
.hero__inner{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;text-align:center}
.hero__badge{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;
  color:var(--teal);background:rgba(45,212,191,.1);
  border:1px solid rgba(45,212,191,.25);border-radius:999px;
  padding:7px 18px;margin-bottom:30px;
}
.hero__title{font-size:clamp(34px,6vw,64px);line-height:1.18;font-weight:900;letter-spacing:-.5px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{
  max-width:720px;margin:26px auto 0;font-size:clamp(15px,2.1vw,18.5px);
  color:var(--muted);line-height:1.85;
}
.hero__sub strong{color:var(--text);font-weight:700}
.hero__actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:38px}
.btn{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15.5px;
  padding:14px 30px;border-radius:12px;transition:transform .2s var(--ease),box-shadow .25s,background .25s;
  cursor:pointer;border:1px solid transparent;
}
.btn--primary{background:var(--grad);color:#06281f;box-shadow:0 16px 36px -16px rgba(45,212,191,.7)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 22px 44px -16px rgba(45,212,191,.8)}
.btn--ghost{background:rgba(255,255,255,.04);border-color:var(--line-2);color:var(--text)}
.btn--ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-2px)}

.hero__stats{
  margin-top:72px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  max-width:880px;margin-left:auto;margin-right:auto;
}
.stat{
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.01));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 16px;
  backdrop-filter:blur(6px);
}
.stat__num{font-size:clamp(30px,5vw,44px);font-weight:900;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat__label{margin-top:10px;font-size:12.5px;color:var(--faint);font-weight:600;line-height:1.5}

/* ---------- BAND ---------- */
.band{padding:30px 24px;background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.band__inner{
  max-width:var(--maxw);margin:0 auto;padding:26px 32px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  display:flex;gap:28px;align-items:center;flex-wrap:wrap;
}
.band__kicker{
  flex:0 0 auto;font-size:12px;font-weight:800;letter-spacing:2px;color:var(--teal);
  border-right:1px solid var(--line);padding-right:28px;
}
.band__text{flex:1;min-width:280px;color:var(--muted);font-size:15px}
.band__text strong{color:var(--text)}
.band__text em{font-style:normal;color:var(--teal)}

/* ---------- SECTION SHELL ---------- */
.section{padding:96px 24px;position:relative}
.section--alt{background:linear-gradient(180deg,var(--bg-2),var(--bg-2))}
.section__head{max-width:var(--maxw);margin:0 auto 52px;text-align:center}
.kicker{font-size:13px;font-weight:800;letter-spacing:2.5px;color:var(--teal);margin-bottom:14px}
.h2{font-size:clamp(28px,4.4vw,44px);font-weight:900;letter-spacing:-.5px;line-height:1.2}
.h3{font-size:clamp(20px,3vw,26px);font-weight:800;margin-bottom:8px}
.lead{margin-top:16px;color:var(--muted);font-size:16.5px}
.lead strong{color:var(--text)}
.muted{color:var(--faint);font-size:14px}
.leg{display:inline-flex;align-items:center;gap:6px;margin-left:16px;font-size:13px;color:var(--muted)}
.dot{width:9px;height:9px;border-radius:50%;display:inline-block}
.dot--g{background:var(--green)}.dot--y{background:var(--yellow)}.dot--r{background:var(--red)}

/* ---------- VERDICT ---------- */
.verdict-grid{
  max-width:var(--maxw);margin:0 auto;display:grid;
  grid-template-columns:repeat(3,1fr);gap:20px;
}
.vcard{
  position:relative;padding:30px 26px 28px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--line);overflow:hidden;
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;
}
.vcard::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px}
.vcard--win::before{background:var(--grad)}
.vcard--ms::before{background:linear-gradient(180deg,var(--blue),#3b62c9)}
.vcard:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--line-2)}
.vcard__win{
  display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:1px;
  color:var(--teal);background:rgba(45,212,191,.12);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;
  border:1px solid rgba(45,212,191,.25);
}
.vcard__win--ms{color:var(--blue);background:rgba(91,140,255,.12);border-color:rgba(91,140,255,.28)}
.vcard h3{font-size:19px;font-weight:800;margin-bottom:10px}
.vcard p{color:var(--muted);font-size:14.5px;line-height:1.75}
.verdict-line{
  max-width:920px;margin:44px auto 0;text-align:center;
  background:linear-gradient(135deg,rgba(45,212,191,.07),rgba(91,140,255,.05));
  border:1px solid var(--line);border-radius:var(--radius);padding:34px 36px;
}
.verdict-line p{color:var(--muted);font-size:16px;line-height:1.85}
.verdict-line strong{color:var(--text)}
.verdict-line__bold{display:inline-block;margin-top:8px;font-size:18px;font-weight:800;color:var(--teal)}

/* ---------- TABS ---------- */
.tabs{max-width:var(--maxw);margin:0 auto}
.tabs__bar{
  display:flex;gap:8px;flex-wrap:wrap;justify-content:center;
  margin-bottom:30px;
}
.tab{
  font-family:inherit;font-size:15px;font-weight:700;color:var(--muted);
  background:var(--surface);border:1px solid var(--line);
  padding:11px 22px;border-radius:999px;cursor:pointer;transition:.25s var(--ease);
}
.tab:hover{color:var(--text);border-color:var(--line-2)}
.tab.is-active{color:#06281f;background:var(--grad);border-color:transparent;
  box-shadow:0 12px 26px -14px rgba(45,212,191,.7)}
.tab-panel{display:none;animation:fade .45s var(--ease)}
.tab-panel.is-active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.ctable{
  width:100%;border-collapse:separate;border-spacing:0;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;font-size:14.5px;
}
.ctable thead th{
  background:var(--bg-3);text-align:left;font-weight:800;font-size:14px;
  padding:16px 20px;color:var(--text);border-bottom:1px solid var(--line);
}
.ctable thead th:nth-child(2){color:var(--teal)}
.ctable thead th:nth-child(3){color:var(--blue)}
.ctable td{padding:14px 20px;border-bottom:1px solid var(--line);color:var(--muted);vertical-align:top}
.ctable tbody tr:last-child td{border-bottom:0}
.ctable tbody tr:hover td{background:rgba(255,255,255,.02)}
.ctable td:first-child{font-weight:700;color:var(--text);width:24%}
.ctable b{font-weight:800;font-size:12.5px;padding:2px 9px;border-radius:6px;margin-right:8px;display:inline-block}
.ctable b.g{color:var(--green);background:rgba(52,211,153,.12)}
.ctable b.y{color:var(--yellow);background:rgba(250,204,21,.12)}
.ctable b.r{color:var(--red);background:rgba(248,113,113,.12)}
.ctable__note{
  margin-top:16px;padding:16px 22px;font-size:14.5px;color:var(--muted);
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--faint);
  border-radius:var(--radius-sm);
}
.ctable__note--win{border-left-color:var(--teal)}
.ctable__note strong{color:var(--teal)}
.ctable__note a{color:var(--teal);text-decoration:underline;text-underline-offset:3px}

/* ---------- GLYPH ---------- */
.glyph-hero{
  max-width:var(--maxw);margin:0 auto 48px;display:grid;
  grid-template-columns:auto 1fr;gap:40px;align-items:center;
  background:linear-gradient(135deg,rgba(45,212,191,.06),transparent);
  border:1px solid var(--line);border-radius:var(--radius);padding:38px 40px;
}
.glyph-flip{display:flex;align-items:center;gap:18px;font-family:var(--serif)}
.glyph-flip__old{font-size:84px;color:var(--red);opacity:.55;position:relative}
.glyph-flip__old::after{content:"";position:absolute;left:8%;right:8%;top:52%;height:4px;background:var(--red);border-radius:2px;transform:rotate(-12deg)}
.glyph-flip__arrow{font-size:40px;color:var(--faint)}
.glyph-flip__new{font-size:96px;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 8px 24px rgba(45,212,191,.35))}
.glyph-hero__text p{color:var(--muted);font-size:15.5px;margin-bottom:12px}
.glyph-hero__text strong{color:var(--text)}

.triple{max-width:var(--maxw);margin:0 auto 56px}
.triple__title{text-align:center;font-size:18px;font-weight:800;margin-bottom:26px;color:var(--text)}
.triple__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.layer{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:30px 26px;transition:transform .35s var(--ease),border-color .35s;
}
.layer:hover{transform:translateY(-5px);border-color:var(--line-2)}
.layer__no{font-family:var(--serif);font-size:34px;font-weight:800;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:8px}
.layer h4{font-size:17.5px;font-weight:800;margin-bottom:10px}
.layer p{color:var(--muted);font-size:14px;line-height:1.75}

.glyph-table-wrap{max-width:var(--maxw);margin:0 auto;text-align:center}
.glyph-table-wrap .h3{margin-bottom:6px}
.chip-grid{
  margin-top:28px;display:grid;grid-template-columns:repeat(5,1fr);gap:14px;
}
.chip{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 12px;display:flex;flex-direction:column;align-items:center;gap:2px;
  transition:transform .3s var(--ease),border-color .3s;
}
.chip:hover{transform:translateY(-4px);border-color:var(--teal)}
.chip s{font-family:var(--serif);font-size:26px;color:var(--red);opacity:.5;text-decoration-thickness:2px}
.chip b{font-family:var(--serif);font-size:34px;font-weight:700;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}
.chip em{font-style:normal;font-size:11.5px;color:var(--faint);margin-top:4px}

.callout{
  max-width:var(--maxw);margin:48px auto 0;display:flex;gap:20px;align-items:flex-start;
  background:linear-gradient(135deg,rgba(250,204,21,.06),transparent);
  border:1px solid rgba(250,204,21,.22);border-radius:var(--radius);padding:26px 30px;
}
.callout__icon{font-size:24px;color:var(--yellow);flex:0 0 auto;line-height:1.4}
.callout__title{font-weight:800;color:var(--text);margin-bottom:6px;font-size:16px}
.callout p{color:var(--muted);font-size:14.5px}
.callout strong{color:var(--text)}

/* ---------- KANBAN ---------- */
.kanban{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.kcol{background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.kcol__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding:4px 6px}
.kcol__tag{font-weight:800;font-size:14px}
.kcol__count{font-size:12px;font-weight:800;color:var(--faint);background:var(--surface-2);
  width:26px;height:26px;display:grid;place-items:center;border-radius:8px}
.kcol--done .kcol__tag{color:var(--green)}
.kcol--prog .kcol__tag{color:var(--cyan)}
.kcol--idea .kcol__tag{color:var(--gold)}
.kitem{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px;margin-bottom:12px;transition:transform .3s var(--ease),border-color .3s;
}
.kitem:hover{transform:translateX(4px);border-color:var(--line-2)}
.kcol--done .kitem{border-left:3px solid var(--green)}
.kcol--prog .kitem{border-left:3px solid var(--cyan)}
.kcol--idea .kitem{border-left:3px solid var(--gold)}
.kitem h4{font-size:15px;font-weight:800;margin-bottom:6px}
.kitem p{color:var(--muted);font-size:13.5px;line-height:1.7}

/* ---------- STEPS ---------- */
.steps{max-width:920px;margin:0 auto;display:grid;gap:16px}
.step{
  display:flex;gap:22px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 28px;
  transition:transform .3s var(--ease),border-color .3s;
}
.step:hover{transform:translateY(-3px);border-color:var(--line-2)}
.step__no{
  flex:0 0 auto;width:44px;height:44px;display:grid;place-items:center;
  font-size:20px;font-weight:900;color:#06281f;background:var(--grad);border-radius:12px;
}
.step h4{font-size:17px;font-weight:800;margin-bottom:4px}
.step p{color:var(--muted);font-size:14.5px}

/* ---------- FOOTER ---------- */
.footer{background:var(--bg-2);border-top:1px solid var(--line);padding:56px 24px 0}
.footer__inner{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:40px}
.footer__brand{display:flex;gap:14px;align-items:center}
.footer__title{font-weight:800;font-size:17px}
.footer__tag{color:var(--faint);font-size:13px;margin-top:2px}
.footer__links{display:flex;gap:60px;flex-wrap:wrap}
.footer__col h5{font-size:12px;letter-spacing:1.5px;color:var(--faint);margin-bottom:14px;font-weight:800}
.footer__col a{display:block;color:var(--muted);font-size:14px;margin-bottom:10px;transition:color .2s}
.footer__col a:hover{color:var(--teal)}
.footer__bar{border-top:1px solid var(--line);padding:22px 0;text-align:center}
.footer__bar p{max-width:var(--maxw);margin:0 auto;color:var(--faint);font-size:12.5px}

/* ---------- 404 ---------- */
.nf{min-height:100vh;display:grid;place-items:center;text-align:center;padding:40px 24px;position:relative;overflow:hidden}
.nf__glow{position:absolute;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(600px 420px at 30% 20%,rgba(45,212,191,.16),transparent 60%),
             radial-gradient(620px 460px at 80% 80%,rgba(91,140,255,.14),transparent 62%)}
.nf__in{position:relative;z-index:1;max-width:560px}
.nf__mark{font-family:var(--serif);font-size:clamp(96px,22vw,180px);font-weight:700;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 12px 30px rgba(45,212,191,.3))}
.nf__code{font-size:14px;font-weight:800;letter-spacing:3px;color:var(--teal);margin:18px 0 8px}
.nf h1{font-size:clamp(24px,5vw,34px);font-weight:900;margin-bottom:14px}
.nf p{color:var(--muted);font-size:16px;margin-bottom:30px}

/* ---------- REVEAL ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- RESPONSIVE ---------- */
@media(max-width:980px){
  .verdict-grid,.triple__grid,.kanban{grid-template-columns:1fr 1fr}
  .chip-grid{grid-template-columns:repeat(3,1fr)}
  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .glyph-hero{grid-template-columns:1fr;text-align:center}
  .glyph-flip{justify-content:center}
}
@media(max-width:720px){
  .nav__links{
    position:fixed;top:71px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(7,10,20,.97);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);padding:8px 0;
    transform:translateY(-130%);transition:transform .4s var(--ease);
  }
  .nav__links.open{transform:none}
  .nav__links a{padding:14px 24px;width:100%;border-bottom:1px solid var(--line)}
  .nav__cta{margin:10px 24px;text-align:center}
  .nav__burger{display:flex}
  .verdict-grid,.triple__grid,.kanban{grid-template-columns:1fr}
  .chip-grid{grid-template-columns:repeat(2,1fr)}
  .hero__stats{grid-template-columns:1fr 1fr}
  .band__inner{flex-direction:column;align-items:flex-start}
  .band__kicker{border-right:0;border-bottom:1px solid var(--line);padding:0 0 14px;width:100%}
  .ctable{font-size:13px}
  .ctable td:first-child{width:32%}
  .section{padding:70px 18px}
}
@media(max-width:440px){
  .chip-grid{grid-template-columns:1fr 1fr}
  .hero{padding-top:140px}
}