:root{--bg:#f4f8f8;--card:#fff;--ink:#12262c;--ink2:#4c6066;--line:#d5e2e2;--acc:#0b6b6f;--warn:#fff4d6;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0d1a1d;--card:#13262a;--ink:#e3eef0;--ink2:#9fb3b8;--line:#24403f;--acc:#4cc3c4;--warn:#3a3218;color-scheme:dark}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:780px;margin:0 auto;padding:24px 16px 64px}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px;font-size:14px}
.top a{color:var(--acc);font-weight:600}
h1{color:var(--acc);margin:8px 0 4px;font-size:28px;line-height:1.2}
h2{margin:34px 0 8px;font-size:21px;border-top:1px solid var(--line);padding-top:22px}
h3{margin:20px 0 6px;font-size:17px}
.meta{color:var(--ink2);font-size:14px;margin:0 0 18px}
.box{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:14px 0}
.warn{background:var(--warn)}
.toc{columns:2;column-gap:24px;font-size:15px;padding-left:20px}
@media (max-width:560px){.toc{columns:1}}
table{border-collapse:collapse;width:100%;font-size:14.5px;margin:8px 0;display:block;overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}
html,body{overflow-x:clip}
th,td{border:1px solid var(--line);padding:7px 9px;text-align:left;vertical-align:top}
th{background:var(--card)}
a{color:var(--acc)}
.small{font-size:14px;color:var(--ink2)}
.btns{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:999px;border:1.5px solid var(--acc);color:var(--acc);background:transparent;font:700 15px system-ui,sans-serif;text-decoration:none;cursor:pointer}
.btn.main{background:var(--acc);color:#fff}
label{display:block;font-weight:700;font-size:14px;margin:12px 0 4px}
input,select,textarea{width:100%;min-height:46px;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font:inherit}
.chk{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:14.5px}
.chk input{width:20px;height:20px;min-height:0;margin-top:3px;flex:0 0 auto}
.err{color:#b3261e;font-weight:700;margin-top:10px}
.code{font:800 28px ui-monospace,Menlo,monospace;letter-spacing:.06em;margin:6px 0}
footer{max-width:780px;margin:0 auto;padding:0 16px 40px;font-size:13px;color:var(--ink2)}