:root{--bg:#fff;--fg:#1c2430;--muted:#5b6675;--brand:#0b6e4f;--card:#f4f7f6;--line:#dde4e1}
@media (prefers-color-scheme:dark){:root{--bg:#10161c;--fg:#e8edf1;--muted:#9aa7b4;--brand:#3ecf9a;--card:#18212a;--line:#26323d}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif;line-height:1.9;font-size:17px}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}
.site-header{border-bottom:1px solid var(--line);background:var(--card)}
.site-header .wrap{display:flex;justify-content:space-between;align-items:center;padding-top:12px;padding-bottom:12px;flex-wrap:wrap;gap:8px}
.logo{font-weight:700;font-size:1.2rem;color:var(--brand);text-decoration:none}
nav a{color:var(--fg);text-decoration:none;margin-inline-start:14px}
a{color:var(--brand)}
h1{font-size:1.6rem;line-height:1.5;margin:1.2rem 0 .6rem}
h2{font-size:1.25rem;margin:1.6rem 0 .5rem}
.crumbs{font-size:.9rem;color:var(--muted);margin-top:14px}
.crumbs a{color:var(--muted)}
table{border-collapse:collapse;width:100%;margin:1rem 0;display:block;overflow-x:auto}
th,td{border:1px solid var(--line);padding:8px 12px;text-align:start}
th{background:var(--card)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;padding:0;list-style:none}
.grid a{display:block;padding:10px 12px;background:var(--card);border:1px solid var(--line);border-radius:8px;text-decoration:none}
.site-footer{margin-top:3rem;border-top:1px solid var(--line);padding:20px 0;color:var(--muted);font-size:.9rem}
.note{background:var(--card);border-inline-start:4px solid var(--brand);padding:10px 14px;border-radius:6px;font-size:.95rem}
.tips{background:#fff8e1;border:1px solid #f0d98a;border-inline-start:5px solid #e0a800;border-radius:8px;padding:6px 16px;margin:1.4rem 0;color:#3b2f00}
@media (prefers-color-scheme:dark){.tips{background:#2a2410;border-color:#6b5a1c;color:#f3e6b3}}
.map{width:100%;height:320px;border:1px solid var(--line);border-radius:8px}
.tool{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:6px 16px 14px;margin:1.4rem 0}
.tool label{display:block;margin:8px 0;font-size:.95rem}
.tool input{width:100%;max-width:200px;padding:6px 8px;font:inherit;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--fg);margin-inline-start:6px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin:1.2rem 0}
.btn{padding:8px 14px;border-radius:8px;border:1px solid var(--brand);background:transparent;color:var(--brand);font:inherit;cursor:pointer;text-decoration:none}