:root {
  --ink: #1f2933;
  --muted: #59636e;
  --line: #d9dee3;
  --paper: #ffffff;
  --wash: #f3f6f4;
  --accent: #176b52;
  --accent-dark: #0f513d;
  --highlight: #e7f3ed;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif; font-size: 16px; line-height: 1.8; }
a { color: var(--accent-dark); text-underline-offset: 3px; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
.skip-link { position: absolute; left: 12px; top: -100px; z-index: 5; padding: 8px 16px; background: var(--paper); border: 2px solid var(--accent); }
.skip-link:focus { top: 12px; }
.site-header { border-bottom: 1px solid var(--line); background: var(--wash); }
.header-inner { width: min(1080px, calc(100% - 40px)); margin: 0 auto; padding: 34px 0 30px; display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 18px; }
.brand img { width: 68px; height: 68px; border: 1px solid var(--line); border-radius: 8px; background: #fff; object-fit: contain; }
.app-label, .effective-date, .toc-title, .eyebrow, footer p { margin: 0; }
.app-label { color: var(--accent); font-size: 14px; font-weight: 700; }
h1 { margin: 2px 0 0; font-size: 34px; line-height: 1.25; font-weight: 800; }
.effective-date { color: var(--muted); font-size: 14px; }
.page-shell { width: min(1080px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 190px minmax(0, 720px); gap: 72px; padding: 54px 0 72px; }
aside { align-self: start; position: sticky; top: 28px; border-left: 3px solid var(--accent); padding-left: 18px; }
.toc-title { margin-bottom: 9px; font-size: 13px; font-weight: 800; color: var(--accent-dark); }
nav { display: flex; flex-direction: column; }
nav a { padding: 5px 0; color: var(--muted); font-size: 14px; text-decoration: none; }
nav a:hover, nav a:focus-visible { color: var(--accent); text-decoration: underline; }
.top-links { flex-direction: row; flex-wrap: wrap; gap: 20px; }
.top-links a { padding: 10px 0; color: var(--accent-dark); font-weight: 700; }
article { min-width: 0; }
article section { scroll-margin-top: 28px; padding: 30px 0; border-bottom: 1px solid var(--line); }
article section:first-child { padding-top: 25px; }
article section:last-child { border-bottom: 0; }
.summary { border: 1px solid #b9d7c9; border-left: 5px solid var(--accent); padding: 25px 26px; background: var(--highlight); }
.eyebrow { color: var(--accent-dark); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
h2 { margin: 0 0 12px; color: #182028; font-size: 21px; line-height: 1.45; font-weight: 800; }
.summary h2 { margin-top: 3px; font-size: 23px; }
p { margin: 0 0 14px; }
p:last-child { margin-bottom: 0; }
ul { margin: 8px 0 0; padding-left: 1.35em; }
li { margin: 5px 0; }
li::marker { color: var(--accent); }
.contact-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 3px; border-bottom: 2px solid var(--accent); color: var(--accent-dark); font-weight: 800; text-decoration: none; max-width: 100%; }
.contact-link:hover { color: var(--accent); }
.muted { color: var(--muted); font-size: 14px; }
footer { border-top: 1px solid var(--line); background: var(--wash); padding: 26px 20px; display: flex; justify-content: center; flex-wrap: wrap; gap: 18px; color: var(--muted); font-size: 13px; text-align: center; }
@media (max-width: 760px) {
  .header-inner { width: min(100% - 32px, 680px); padding: 24px 0; align-items: flex-start; flex-direction: column; gap: 12px; }
  .brand { gap: 13px; }
  .brand img { width: 54px; height: 54px; }
  h1 { font-size: 28px; }
  .page-shell { width: min(100% - 32px, 680px); display: block; padding: 30px 0 52px; }
  aside { position: static; margin-bottom: 25px; }
  nav { flex-direction: row; flex-wrap: wrap; column-gap: 18px; row-gap: 2px; }
  nav a { padding: 8px 0; }
  article section { padding: 25px 0; }
  .summary { padding: 21px 18px; }
  article section:first-child { padding-top: 21px; }
  .summary h2 { font-size: 21px; }
  footer { flex-direction: column; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }