:root{--bg:#fff;--fg:#17202b;--mut:#5a6573;--card:#f4f6f9;--line:#dde2e8;--acc:#1f5fbf;--accfg:#fff;--mark:#fff1a8;--markfg:#5a4300}
@media (prefers-color-scheme:dark){:root{--bg:#10151c;--fg:#e6ebf1;--mut:#9aa6b4;--card:#18202a;--line:#2a3542;--acc:#6ea2ff;--accfg:#0b1422;--mark:#5a4a00;--markfg:#ffe98a}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
a{color:var(--acc)}
.top{border-bottom:1px solid var(--line)}
.bar{display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between;padding-top:12px;padding-bottom:12px}
.brand{font-weight:700;text-decoration:none;color:var(--fg)}.brand span{font-weight:400;color:var(--mut)}
nav{display:flex;flex-wrap:wrap;gap:4px 16px}nav a{text-decoration:none;font-size:15px}
main{padding-top:24px;padding-bottom:48px}
section{margin:40px 0}
h1{font-size:clamp(28px,5vw,40px);line-height:1.2;margin:8px 0 12px}
h2{font-size:24px;margin-top:0}
.lead{font-size:18px;color:var(--mut);max-width:680px}
.small,.note{font-size:14px;color:var(--mut)}
.badge{display:inline-block;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:2px 12px;font-size:14px;margin:0}
.btn{display:inline-block;background:var(--acc);color:var(--accfg);padding:10px 18px;border-radius:8px;text-decoration:none;font-weight:600;border:2px solid var(--acc)}
.btn.ghost{background:transparent;color:var(--acc)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.grid{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.grid li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px}
.tbl{overflow-x:auto}
table{border-collapse:collapse;width:100%}th,td{border-bottom:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}
pre{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:12px;overflow-x:auto;font-size:14px}
code{font-family:ui-monospace,Consolas,monospace;font-size:.92em}
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.plan{border:1px solid var(--line);border-radius:12px;padding:20px;background:var(--card)}
.plan.hi{border:2px solid var(--acc)}
.price{font-size:32px;font-weight:700;margin:4px 0}.price span{font-size:15px;font-weight:400;color:var(--mut)}
.notice{border-left:4px solid var(--acc);background:var(--card);padding:10px 14px}
details{border-bottom:1px solid var(--line);padding:10px 0}summary{cursor:pointer;font-weight:600}
mark.ph{background:var(--mark);color:var(--markfg);padding:0 3px;border-radius:3px;font-weight:600}
.legal{max-width:760px}blockquote{border-left:4px solid var(--line);margin:0;padding:4px 14px;color:var(--mut)}
footer{border-top:1px solid var(--line);font-size:14px;color:var(--mut);padding:16px 0}
.checkout{max-width:560px}.field{margin:0 0 16px}.field label{display:block;font-weight:600;margin-bottom:4px}
.checkout select,.checkout input:not([type=checkbox]):not([type=hidden]){width:100%;font:inherit;padding:8px 10px;border:1px solid var(--mut);border-radius:6px;background:var(--bg);color:var(--fg)}
.checkout fieldset{border:1px solid var(--line);border-radius:10px;padding:12px 16px 4px;margin:0 0 16px}.checkout legend{font-weight:600;padding:0 6px}
.field.check{display:flex;gap:8px;align-items:flex-start}.field.check label{font-weight:400;margin:0}.field.check input{margin-top:5px;width:18px;height:18px}
.hint{font-size:14px;color:var(--mut);margin:4px 0 0}[aria-invalid=true]{border-color:#c62828!important;outline:2px solid #c62828}
.status{min-height:1.6em;margin:8px 0}.status.err{color:#c62828;font-weight:600}
@media (prefers-color-scheme:dark){[aria-invalid=true]{border-color:#ff8a80!important;outline-color:#ff8a80}.status.err{color:#ff8a80}}
:focus-visible{outline:3px solid var(--acc);outline-offset:2px}button.btn{font:inherit;font-weight:600;cursor:pointer}button.btn:disabled{opacity:.6;cursor:wait}
.tbl{overflow-x:auto;margin:0 0 1em}.legal th{background:var(--card)}
p code,li code,td code{overflow-wrap:anywhere}
.legal a{overflow-wrap:anywhere}