:root{--ink:#0f172a;--ink2:#475569;--line:#e2e8f0;--brand:#0ea5e9;--brand-d:#0369a1;--accent:#f59e0b;--bg:#f8fafc}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"PingFang TC","Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.85}
a{color:var(--brand-d)}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{max-width:860px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:58px}
.nav img{height:36px;border-radius:8px;display:block}
.nav a.btn{background:var(--accent);color:#fff;border-radius:18px;padding:8px 18px;font-size:14px;font-weight:700;text-decoration:none}
article{max-width:860px;margin:0 auto;padding:36px 20px 60px}
h1{font-size:clamp(24px,4.5vw,34px);font-weight:900;line-height:1.4;margin-bottom:10px}
.meta{color:var(--ink2);font-size:13.5px;margin-bottom:26px}
h2{font-size:22px;font-weight:800;margin:38px 0 12px;padding-top:10px;border-top:1px solid var(--line)}
h3{font-size:17px;font-weight:700;margin:22px 0 8px}
p{margin-bottom:14px;font-size:15.5px}
ul,ol{margin:0 0 14px 22px;font-size:15.5px}
li{margin-bottom:6px}
table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14.5px;background:#fff}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left}
th{background:#f1f5f9;font-weight:700}
.cta{background:linear-gradient(135deg,#0c4a6e,#0ea5e9);color:#fff;border-radius:16px;padding:22px 24px;margin:26px 0;text-align:center}
.cta a{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:800;border-radius:22px;padding:11px 28px;margin-top:12px}
.cta p{margin:0;font-size:15px}
.tip{background:#fffbeb;border:1px solid #fde68a;border-radius:12px;padding:14px 18px;margin:16px 0;font-size:14.5px}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
summary{font-weight:700;cursor:pointer;font-size:15px}
footer{text-align:center;color:var(--ink2);font-size:13px;padding:30px 20px;border-top:1px solid var(--line)}
/* 表格在手機上可橫向滑動,不撐破畫面 */
table{display:block;overflow-x:auto;white-space:nowrap}
@media(max-width:760px){
  .nav{height:54px;padding:0 14px}
  .nav img{height:30px}
  .nav a.btn{padding:7px 13px;font-size:13px}
  article{padding:26px 16px 48px}
  h1{font-size:22px}
  h2{font-size:19px;margin:30px 0 10px}
  h3{font-size:16px}
  p,ul,ol{font-size:15px}
  ul,ol{margin-left:18px}
  table{font-size:13.5px}
  th,td{padding:8px 10px}
  .cta{padding:18px 16px}
  .cta a{padding:11px 22px;font-size:15px}
}