:root{color-scheme:dark;--bg:#080c14;--surface:#111827;--surface2:#151e2f;--text:#edf1f7;--muted:#aebacc;--line:#344052;--accent:#b8a0ff;--accent2:#78cfe0;--max:1050px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(ellipse 85% 48% at 50% -6%,#222147 0%,transparent 67%),var(--bg);color:var(--text);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Noto Sans TC","Segoe UI",sans-serif;line-height:1.7}
a{color:var(--accent2);text-underline-offset:.23em}
a:hover{color:#defaff}
a:focus-visible{outline:3px solid var(--accent2);outline-offset:4px;border-radius:4px}
header,main,footer{width:min(var(--max),calc(100% - 48px));margin-inline:auto}
header{min-height:84px;display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text);font-weight:750;letter-spacing:.05em}
.mark{display:inline-grid;place-items:center;width:34px;height:39px;border:2px solid var(--accent);border-radius:17px 17px 4px 4px;color:var(--accent);font-size:20px;line-height:1}
nav{display:flex;gap:26px;flex-wrap:wrap}
nav a{color:var(--muted);text-decoration:none;font-size:.91rem}
nav a[aria-current="page"]{color:var(--text)}
main{min-height:calc(100vh - 170px)}
.hero{padding:92px 0 78px;max-width:810px}
.eyebrow{text-transform:uppercase;color:var(--accent2);letter-spacing:.19em;font-size:.76rem;font-weight:700}
h1{font-weight:710;letter-spacing:-.055em;line-height:1.14;font-size:clamp(2.5rem,6.1vw,5.2rem);margin:22px 0 25px}
h1 em{font-style:normal;color:var(--accent)}
.lede{font-size:clamp(1.1rem,2vw,1.34rem);color:var(--muted);max-width:700px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.button{border:1px solid var(--line);padding:11px 18px;border-radius:12px;text-decoration:none;font-weight:600;color:var(--text);background:var(--surface)}
.button.primary{background:var(--accent);color:#171126;border-color:var(--accent)}
.button:hover{background:#26314a;color:var(--text)}
.button.primary:hover{background:#d2c2ff;color:#171126}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding-bottom:92px}
.panel{border:1px solid var(--line);border-radius:17px;padding:27px;background:linear-gradient(155deg,rgba(30,40,59,.8),rgba(15,22,34,.65))}
.panel h2{font-size:1.05rem;letter-spacing:-.01em;margin:8px 0}
.panel p{color:var(--muted);font-size:.95rem;margin:0}
.num{font-size:.74rem;font-weight:750;letter-spacing:.14em;color:var(--accent2)}
.notice{max-width:810px;margin:0 0 96px;padding:23px 25px;border-left:3px solid var(--accent);border-radius:0 12px 12px 0;background:var(--surface);color:var(--muted)}
.notice strong{color:var(--text)}
.page-intro{max-width:820px;padding:65px 0 25px}
.page-intro h1{font-size:clamp(2.2rem,5vw,3.7rem)}
.page-intro p{color:var(--muted)}
.doc{max-width:840px;padding:10px 0 88px}
.doc h2{font-size:1.4rem;letter-spacing:-.03em;line-height:1.3;margin:42px 0 10px}
.doc h3{font-size:1.05rem;margin:28px 0 4px}
.doc p,.doc li{color:var(--muted)}
.doc ul{padding-left:1.5rem}
.doc strong{color:var(--text)}
.doc hr{border:0;border-top:1px solid var(--line);margin:50px 0}
.tiny{font-size:.84rem}
footer{border-top:1px solid var(--line);min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--muted);font-size:.86rem}
footer a{color:var(--muted)}
@media(max-width:750px){header,main,footer{width:calc(100% - 34px)}header{min-height:72px}nav{gap:12px}.hero{padding:67px 0 54px}.grid{grid-template-columns:1fr;padding-bottom:54px}.panel{padding:22px}.notice{margin-bottom:58px}.page-intro{padding-top:42px}footer{padding:22px 0;align-items:flex-start;flex-direction:column;gap:4px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}