:root{--bg:#0b1020;--card:#151c31;--text:#eef2ff;--muted:#aab4cf;--accent:#8ea2ff;--line:#29324c;--soft:#10172a}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI","Noto Sans TC",sans-serif;background:var(--bg);color:var(--text);line-height:1.75}a{color:#b9c5ff;text-decoration:none}a:hover{text-decoration:underline}.wrap{width:min(1080px,calc(100% - 40px));margin:auto}header{position:sticky;top:0;background:#0b1020e8;border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-weight:800;font-size:1.2rem;color:white}.nav nav{display:flex;gap:20px}.hero{padding:100px 0 70px;background:radial-gradient(circle at 75% 20%,#25336a 0,transparent 35%)}h1{font-size:clamp(2.2rem,6vw,4.5rem);line-height:1.1;margin:.3em 0}h2{margin-top:1.5em}.lead{font-size:1.35rem;color:#d6ddf6}.tag{font-size:.8rem;letter-spacing:.18em;color:var(--accent);font-weight:800}.notice{margin-top:30px;padding:16px 18px;border:1px solid var(--line);border-radius:14px;color:var(--muted);background:#11182b}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:60px 0}.grid article{background:var(--card);padding:28px;border:1px solid var(--line);border-radius:18px}.grid article h2{margin-top:0}.soft{background:var(--soft);padding:45px 0}.page{max-width:850px;padding:70px 0}.page h1{font-size:2.6rem}.page h2{border-top:1px solid var(--line);padding-top:24px}.muted,.page p{color:#c2cae0}code{background:#1b2541;padding:.15em .4em;border-radius:6px}footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:.9rem}@media(max-width:760px){.grid{grid-template-columns:1fr}.nav{align-items:flex-start;flex-direction:column;padding:14px 0}.nav nav{gap:12px;flex-wrap:wrap}.hero{padding-top:70px}}