:root{--bg:#f6f8fb;--card:#fff;--text:#172033;--muted:#667085;--line:#d9e2ef;--brand:#0b4a8b}*{box-sizing:border-box}body{margin:0;font-family:'Microsoft JhengHei',system-ui,sans-serif;background:var(--bg);color:var(--text)}.top{display:flex;justify-content:space-between;align-items:center;padding:18px 6vw;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0}.brand{font-weight:800;font-size:22px;color:var(--brand)}nav a{margin-left:16px;color:var(--text);text-decoration:none}.hero{display:grid;grid-template-columns:1.4fr .8fr;gap:28px;align-items:center;padding:70px 6vw}.badge{display:inline-block;background:#e8f1ff;color:var(--brand);padding:8px 12px;border-radius:999px;font-weight:700}.hero h1{font-size:44px;margin:16px 0}.hero p{font-size:18px;color:var(--muted);line-height:1.8}.btn{display:inline-block;padding:12px 18px;background:var(--brand);color:#fff;border-radius:12px;text-decoration:none;margin-right:10px}.btn.ghost{background:#fff;color:var(--brand);border:1px solid var(--line)}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 10px 30px #0001}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;padding:0 6vw 60px}.item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}footer{text-align:center;padding:28px;color:var(--muted)}@media(max-width:800px){.hero{grid-template-columns:1fr}.top{display:block}nav a{display:inline-block;margin:10px 10px 0 0}.hero h1{font-size:32px}}