/* D198 方向 B：白卡＋森綠＋溫暖柔和。只用系統字型（CSP 不允許外部資源）。 */
:root { color-scheme: light; --bg:#F4F1EA; --card:#FFFFFF; --ink:#24372E; --green:#2F6B4F; --green-soft:#E6F0E9; --muted:#5B6A61; --line:#E2DED3; --warn:#8A5410; --warn-bg:#FDF3E2; --radius:20px; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:16px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior:auto; } }
body { margin:0; background:var(--bg); color:var(--ink); font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang TC","Noto Sans TC","Microsoft JhengHei",sans-serif; font-size:16px; line-height:1.8; overflow-wrap:anywhere; }
a { color:var(--green); text-underline-offset:4px; }
a:hover { text-decoration-thickness:2px; }
a:focus-visible, summary:focus-visible { outline:3px solid var(--green); outline-offset:3px; border-radius:6px; }
.skip { position:absolute; left:16px; top:-100px; background:var(--card); padding:8px 16px; z-index:1; }
.skip:focus { top:8px; }
.shell { width:min(100% - 32px, 920px); margin-inline:auto; }
.site-header { display:flex; align-items:center; justify-content:space-between; gap:8px 16px; padding:16px 0; flex-wrap:wrap; }
.brand { display:inline-flex; align-items:center; gap:10px; font-size:20px; font-weight:750; text-decoration:none; color:var(--ink); min-height:44px; }
.brand img { border-radius:12px; }
nav { display:flex; flex-wrap:wrap; gap:0 14px; }
nav a, .footer-links a { display:inline-flex; align-items:center; min-height:44px; font-size:15px; color:var(--ink); text-decoration:none; }
nav a:hover, .footer-links a:hover { color:var(--green); text-decoration:underline; }
[aria-current="page"] { font-weight:750; color:var(--green) !important; }
.card { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:20px; margin:0 0 16px; box-shadow:0 6px 24px #24372e0a; }
.hero { display:grid; gap:24px; align-items:center; padding:28px 20px; }
.hero-art { width:min(100%, 300px); height:auto; border-radius:28%; display:block; margin-inline:auto; }
.eyebrow { font-size:13px; letter-spacing:.14em; font-weight:700; color:var(--green); margin:0 0 8px; }
h1 { font-size:clamp(28px,6vw,46px); line-height:1.3; margin:0 0 16px; }
.lead { font-size:18px; margin:0; }
.platforms { display:flex; flex-wrap:wrap; gap:8px; margin-top:20px; }
.badge { padding:6px 14px; border-radius:99px; font-size:14px; background:var(--green-soft); color:var(--green); font-weight:600; }
.story p { margin:0 0 16px; }
.story p:last-child { margin:0; }
.document { padding:8px 0 32px; }
.document > .card { padding:24px 20px; }
.document h1 { font-size:clamp(28px,5vw,38px); margin-bottom:8px; }
.document h2 { font-size:21px; line-height:1.5; margin:0 0 12px; padding-top:4px; color:var(--green); }
.document h3 { font-size:17px; margin:20px 0 6px; }
.document p { margin:0 0 12px; }
.document ul, .document ol { padding-left:22px; margin:0 0 12px; }
.document li { margin:6px 0; }
.document section.card > :last-child { margin-bottom:0; }
.meta { color:var(--muted); font-size:14px; margin:0; }
.summary { padding:16px 18px; border-radius:16px; background:var(--green-soft); margin:16px 0 0; }
.summary p:last-child, .summary ul:last-child { margin-bottom:0; }
.toc ol { columns:1; margin:0; padding-left:22px; }
.toc a { display:inline-block; padding:6px 0; min-height:44px; line-height:32px; }
.todo { background:var(--warn-bg); color:var(--warn); border:1px dashed var(--warn); border-radius:6px; padding:0 6px; font-weight:600; }
.table-wrap { overflow-x:auto; margin:0 0 12px; }
table { width:100%; border-collapse:collapse; font-size:15px; }
th, td { border:1px solid var(--line); padding:8px 10px; text-align:left; vertical-align:top; }
th { background:var(--green-soft); font-weight:650; }
th, td:first-child { min-width:4.5em; }
.steps { counter-reset:step; list-style:none; padding:0 !important; }
.steps li { counter-increment:step; position:relative; padding-left:40px; min-height:32px; margin:12px 0; }
.steps li::before { content:counter(step); position:absolute; left:0; top:0; width:28px; height:28px; border-radius:50%; background:var(--green); color:#fff; font-weight:700; font-size:14px; display:grid; place-items:center; }
details { border-top:1px solid var(--line); }
details:first-of-type { border-top:0; }
summary { cursor:pointer; min-height:48px; display:flex; align-items:center; font-weight:650; padding:8px 0; }
details > :not(summary) { margin-left:4px; }
.back { font-size:14px; display:inline-flex; min-height:44px; align-items:center; }
.site-footer { padding:16px 0 32px; color:var(--muted); font-size:13px; }
.footer-links { display:flex; gap:0 18px; flex-wrap:wrap; }
.site-footer p { margin:6px 0 0; }
@media (min-width:720px) { .hero { grid-template-columns:1.2fr 1fr; gap:40px; padding:40px; } .document > .card { padding:28px 32px; } .toc ol { columns:2; } }