/* Shares the exam's own palette so the shop and the product look like one thing. */
:root{
  --bg:#EEF0EC; --surface:#FFFFFF; --surface2:#F6F7F4; --ink:#18201C; --muted:#5B6660; --line:#D3D9D3;
  --accent:#B3121C; --accent-ink:#FFFFFF; --accent-soft:#F8E3E3; --go:#1C7348; --go-soft:#DDF0E5;
  --f-display:"Noto Serif TC","Songti TC","PMingLiU",serif;
  --f-body:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
  --r:12px;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#121614; --surface:#1B201D; --surface2:#222823; --ink:#E8ECE8; --muted:#9AA59F; --line:#323A35;
  --accent:#E5484D; --accent-ink:#1A0B0C; --accent-soft:#3A1C1E; --go:#4CC38A; --go-soft:#18332A; color-scheme:dark}}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.7}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding-inline:20px}
h1,h2,h3{font-family:var(--f-display);margin:0;line-height:1.25;text-wrap:balance}
.label{font-size:13px;letter-spacing:.08em;color:var(--muted);font-weight:500}
.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}

.top{border-bottom:1px solid var(--line);background:var(--surface)}
.top .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-block:14px}
.brand{font-weight:700;text-decoration:none;display:flex;gap:10px;align-items:center}
.brand i{width:12px;height:12px;border-radius:3px;background:var(--accent);display:inline-block}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:12px 22px;border-radius:10px;font:inherit;font-weight:700;text-decoration:none;cursor:pointer}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.07)}
.btn.sm{padding:8px 16px;font-size:15px}
.btn:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
.btn[disabled]{opacity:.6;cursor:wait}

.hero{padding-block:56px 40px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:48px;align-items:center}
@media (max-width:880px){.hero{grid-template-columns:minmax(0,1fr);gap:32px;padding-block:36px 24px}}
.hero h1{font-size:clamp(34px,5.4vw,58px);font-weight:900}
.hero h1 span{color:var(--accent)}
.hero p.lead{color:var(--muted);margin:18px 0 0;max-width:34em}
.buybox{margin-top:28px;display:flex;flex-wrap:wrap;gap:16px 20px;align-items:center}
.price{display:flex;align-items:baseline;gap:6px}
.price .cur{font-weight:700;color:var(--muted)}
.price .amt{font-family:var(--f-mono);font-size:44px;font-weight:700;line-height:1}
.buynote{flex-basis:100%;font-size:14px;color:var(--muted);margin:0}
.frame{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 60px -30px rgba(10,20,15,.45);background:var(--surface)}

.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;padding-block:8px 48px}
@media (max-width:880px){.facts{grid-template-columns:repeat(2,minmax(0,1fr))}}
.fact{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;display:grid;gap:2px}
.fact b{font-family:var(--f-mono);font-size:26px}
.fact small{color:var(--muted);font-size:14px;line-height:1.5}

section.block{padding-block:48px;border-top:2px solid var(--ink)}
section.block > .wrap > h2{font-size:clamp(26px,3.4vw,34px);margin-bottom:8px}
section.block > .wrap > p.sub{color:var(--muted);margin:0 0 28px;max-width:44em}

.shots{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:20px;align-items:start}
@media (max-width:880px){.shots{grid-template-columns:minmax(0,1fr)}}
.shots .col{display:grid;gap:20px}
.shots2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:28px}
@media (max-width:880px){.shots2{grid-template-columns:minmax(0,1fr)}}
.shots{align-items:center}
figure{margin:0;display:grid;gap:10px}
figcaption{font-size:15px;color:var(--muted)}
figcaption b{color:var(--ink)}
.phone{max-width:300px;justify-self:center;border-radius:22px;border:6px solid var(--ink)}

.inside{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:880px){.inside{grid-template-columns:minmax(0,1fr)}}
.inside div{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.inside h3{font-size:19px;margin-bottom:6px}
.inside p{margin:0;color:var(--muted);font-size:15px}

.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;counter-reset:s}
@media (max-width:880px){.steps{grid-template-columns:minmax(0,1fr)}}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:grid;gap:6px}
.steps li::before{content:counter(s);font-family:var(--f-mono);font-weight:700;width:34px;height:34px;border-radius:8px;display:grid;place-items:center;background:var(--ink);color:var(--bg)}
.steps b{font-size:18px}
.steps span{color:var(--muted);font-size:15px}

.buyband{background:var(--ink);color:var(--bg);border-radius:var(--r);padding:32px;display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:center;margin-top:36px}
.buyband h3{font-size:26px}
.buyband p{margin:4px 0 0;opacity:.75;font-size:15px}
.buyband .price .cur{color:inherit;opacity:.7}

details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 20px}
details+details{margin-top:10px}
summary{font-weight:700;cursor:pointer}
details p{margin:10px 0 0;color:var(--muted);font-size:15px}

.disclaimer{background:var(--accent-soft);border:1px solid var(--accent);border-radius:var(--r);padding:18px 20px;font-size:15px}
.disclaimer b{color:var(--accent)}

footer{border-top:1px solid var(--line);margin-top:48px;padding-block:28px;color:var(--muted);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between}

.doc{max-width:720px;margin:0 auto;padding:48px 20px}
.doc h1{font-size:34px;margin-bottom:16px}
.doc h2{font-size:21px;margin:28px 0 8px}
.doc p,.doc li{color:var(--ink)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:grid;gap:14px}
.ok{display:inline-flex;align-items:center;gap:8px;background:var(--go-soft);color:var(--go);font-weight:700;padding:4px 12px;border-radius:99px;font-size:14px;justify-self:start}
.linkbox{display:flex;gap:8px;flex-wrap:wrap;align-items:stretch}
.linkbox input{flex:1 1 260px;min-width:0;font-family:var(--f-mono);font-size:13px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface2);color:var(--ink)}
.hint{font-size:14px;color:var(--muted);margin:0}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}