:root {
  --bg: #fbf3e4; --surface: #fffaf1; --text: #2c2a24; --muted: #6b6558;
  --accent: #4f6b2c; --accent-2: #e8742a; --border: #eadcc2;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #1d1c18; --surface: #26251f; --text: #f1ebdd; --muted: #b3ab98;
          --accent: #a9c97a; --accent-2: #f39a5a; --border: #3a372e; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "PingFang SC",
        "Apple SD Gothic Neo", "Noto Sans CJK TC", "Noto Sans CJK SC", "Noto Sans CJK KR", sans-serif; }
main, header.top, footer { max-width: 720px; margin: 0 auto; padding: 0 20px; }
header.top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-top: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 600; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
nav.langs { display: flex; gap: 4px 12px; flex-wrap: wrap; font-size: 14px; }
nav.langs a { color: var(--muted); text-decoration: none; }
nav.langs a[aria-current] { color: var(--text); font-weight: 600; }
a { color: var(--accent); }
.hero { text-align: center; padding: 40px 0 16px; }
.hero img { width: 128px; height: 128px; border-radius: 28px; box-shadow: 0 6px 24px rgba(0,0,0,.12); }
.hero h1 { margin: 16px 0 4px; font-size: 40px; letter-spacing: -0.5px; }
.hero p { margin: 0; font-size: 20px; color: var(--muted); }
.badge { display: inline-block; margin-top: 20px; padding: 8px 16px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border); font-size: 15px; }
h2 { margin: 40px 0 12px; font-size: 22px; }
ul.features { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
ul.features li { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; }
details { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; margin: 10px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 8px 0 0; }
.policy h1 { margin: 32px 0 0; font-size: 32px; }
.policy .effective { color: var(--muted); margin: 4px 0 24px; }
.policy li { margin: 6px 0; }
.callout { background: var(--surface); border-left: 4px solid var(--accent-2); padding: 12px 16px; border-radius: 0 12px 12px 0; }
.note { color: var(--muted); font-size: 14px; }
code { font-size: 0.9em; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 1px 5px; overflow-wrap: anywhere; }
footer { margin-top: 48px; padding-top: 16px; padding-bottom: 32px; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); }