:root {
  --bg: #ffffff;
  --ink: #1d2433;
  --muted: #5b6475;
  --line: #dfe3ea;
  --soft: #f4f6f9;
  --navy: #1b3a5c;
  --navy-2: #2b5582;
  --ok: #1f6b45;
  --ok-bg: #eef6f1;
  --ng: #9b2c2c;
  --ng-bg: #fbf1f1;
  --warn: #7a5a12;
  --warn-bg: #fbf6e9;
  --radius: 12px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Segoe UI", Roboto, sans-serif;
  font-size: 16px; line-height: 1.6; overflow-wrap: anywhere;
}
.wrap { max-width: 680px; margin: 0 auto; padding: 0 16px; }
a { color: var(--navy-2); }
.top { border-bottom: 1px solid var(--line); background: #fff; position: sticky; top: 0; z-index: 5; }
.top-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; height: 48px; }
.brand { font-weight: 700; font-size: 14px; color: var(--navy); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.checked-chip { flex: none; font-size: 11px; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; }
h1 { font-size: 23px; line-height: 1.35; margin: 20px 0 6px; color: var(--navy); }
.lead { margin: 0 0 6px; }
.privacy { margin: 0 0 16px; font-size: 13px; color: var(--muted); display: flex; gap: 6px; align-items: flex-start; }
.lock { flex: none; width: 10px; height: 12px; margin-top: 4px; border: 2px solid var(--muted); border-radius: 2px; position: relative; }
.lock::before { content: ""; position: absolute; left: 0; top: -7px; width: 6px; height: 6px; border: 2px solid var(--muted); border-bottom: 0; border-radius: 4px 4px 0 0; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin: 0 0 16px; background: #fff; }

/* form */
.q { border: 0; margin: 0 0 18px; padding: 0; min-width: 0; }
.q legend { font-weight: 700; font-size: 15px; margin-bottom: 8px; padding: 0; color: var(--ink); display: flex; align-items: center; gap: 8px; }
.q legend small { font-weight: 400; color: var(--muted); font-size: 12px; }
.qn { flex: none; width: 22px; height: 22px; border-radius: 50%; background: var(--navy); color: #fff; font-size: 12px; display: inline-flex; align-items: center; justify-content: center; }
.opts { display: flex; flex-wrap: wrap; gap: 8px; }
.opts.grid2 { display: grid; grid-template-columns: 1fr 1fr; }
.opt { position: relative; display: block; min-width: 0; }
.opt input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.opt span { display: flex; align-items: center; min-height: 44px; padding: 8px 12px; border: 1px solid #b9c1ce; border-radius: 10px; font-size: 14px; line-height: 1.35; background: #fff; cursor: pointer; height: 100%; }
.opt input:checked + span { border-color: var(--navy); background: #eef3f9; color: var(--navy); font-weight: 700; box-shadow: inset 0 0 0 1px var(--navy); }
.opt input:focus-visible + span { outline: 2px solid var(--navy-2); outline-offset: 2px; }
.go { display: block; width: 100%; background: var(--navy); color: #fff; border: 0; border-radius: 10px; padding: 14px; font-size: 17px; font-weight: 700; cursor: pointer; }
.go:active { background: var(--navy-2); }

/* result */
.res-head { border: 2px solid var(--navy); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; }
.res-kicker { font-size: 13px; color: var(--muted); margin: 0; }
.res-name { font-size: 24px; font-weight: 800; color: var(--navy); margin: 2px 0 0; line-height: 1.3; }
.res-sub { margin: 0 0 8px; font-size: 15px; }
.res-ans { font-size: 12px; color: var(--muted); margin: 0; border-top: 1px solid var(--line); padding-top: 8px; }
.sec { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 12px; }
.sec h2 { font-size: 16px; margin: 0 0 8px; color: var(--navy); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.fit { font-size: 11px; font-weight: 700; border-radius: 999px; padding: 1px 9px; border: 1px solid var(--navy); color: var(--navy); }
.fit.top { background: var(--navy); color: #fff; }
.fit.off { border-color: #aab2c0; color: var(--muted); }
.excl { margin: 0; font-size: 14px; color: var(--muted); }
.why { list-style: none; margin: 0 0 10px; padding: 0; font-size: 14px; }
.why li { padding: 3px 0 3px 22px; position: relative; }
.why li::before { position: absolute; left: 0; top: 3px; width: 16px; text-align: center; font-weight: 700; }
.why li.plus::before { content: "+"; color: var(--ok); }
.why li.minus::before { content: "−"; color: var(--ng); }
.subh { font-size: 13px; font-weight: 700; color: var(--muted); margin: 10px 0 4px; }
.subh2 { font-size: 14px; font-weight: 700; margin: 12px 0 6px; }
.more { margin-top: 6px; }
.more summary { cursor: pointer; color: var(--navy); font-weight: 600; font-size: 14px; padding: 6px 0; }

.plan { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin: 10px 0; background: #fff; }
.plan.matched { border-color: var(--navy-2); box-shadow: 0 0 0 1px var(--navy-2) inset; }
.plan-h { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 2px 10px; }
.plan-name { font-size: 16px; margin: 0; color: var(--ink); }
.plan-co { font-size: 12px; color: var(--muted); margin: 0; }
.setbox { background: var(--ok-bg); border-radius: 8px; padding: 8px 10px; margin: 8px 0 0; }
.set-t { margin: 0; font-weight: 700; color: var(--ok); font-size: 14px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.set-badge { font-size: 11px; background: var(--ok); color: #fff; border-radius: 4px; padding: 0 6px; }
.set-x { margin: 4px 0 0; font-size: 13px; }
.noset { font-size: 12px; color: var(--muted); margin: 8px 0 0; }
.kv { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; margin: 0; font-size: 14px; }
.kv dt { color: var(--ink); }
.kv dd { margin: 0; text-align: right; white-space: nowrap; }
.kv dd.yen { font-weight: 700; font-size: 15px; font-variant-numeric: tabular-nums; }
.per { font-weight: 400; font-size: 12px; color: var(--muted); margin-left: 1px; }
.note { font-size: 12px; color: var(--muted); margin: 6px 0 0; }
.change { font-size: 12px; color: var(--warn); background: var(--warn-bg); border-radius: 6px; padding: 4px 8px; margin: 6px 0 0; }
.fast { font-size: 13px; background: var(--soft); border-left: 3px solid var(--navy); padding: 6px 10px; margin: 8px 0 0; border-radius: 0 6px 6px 0; }
.list { margin: 0; padding: 0; list-style: none; font-size: 13px; }
.list li { padding: 6px 0; border-top: 1px solid var(--line); }
.list li:first-child { border-top: 0; }
.tag { display: inline-block; font-size: 11px; color: var(--muted); border: 1px solid #c3cad6; border-radius: 4px; padding: 0 5px; margin-right: 6px; line-height: 1.5; }
.small { font-size: 12px; color: var(--muted); margin: 8px 0 0; }
.plan-src { font-size: 12px; color: var(--muted); margin: 10px 0 0; border-top: 1px dashed var(--line); padding-top: 8px; }
.srcs { font-size: 13px; margin: 0; padding-left: 1.2em; }
.srcs li { margin: 2px 0; }
.linkbtn { background: #fff; border: 1px solid var(--navy); color: var(--navy); border-radius: 10px; padding: 10px 12px; font-size: 15px; cursor: pointer; }
.again { display: block; width: 100%; margin: 4px 0 16px; }
.msg { margin: 0 0 12px; padding: 10px 12px; border-radius: 10px; background: var(--soft); font-size: 14px; }
.msg.err { background: var(--ng-bg); color: var(--ng); }
.about h2 { font-size: 15px; margin: 0 0 6px; color: var(--navy); }
.dots { margin: 0; padding-left: 1.2em; font-size: 13px; color: var(--ink); }
.dots li { margin: 4px 0; }

/* ads */
.adbox { border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px 16px; margin-bottom: 16px; background: #fbfcfd; }
.adbox-h { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 4px; }
.adbox-h h2 { font-size: 14px; margin: 0; color: var(--ink); }
.adtag { flex: none; font-size: 11px; color: var(--muted); border: 1px solid #aab2c0; border-radius: 4px; padding: 0 6px; line-height: 1.6; }
.ad-note { font-size: 12px; color: var(--muted); margin: 0 0 4px; }
.ad-slot { margin-top: 10px; text-align: center; overflow: hidden; }
.ad-slot img { max-width: 100%; height: auto; }
.ad-cap { font-size: 12px; color: var(--muted); margin: 4px 0 0; }

.inter { position: fixed; inset: 0; background: rgba(15, 23, 35, .55); z-index: 50; display: flex; align-items: center; justify-content: center; padding: 16px; }
.inter[hidden] { display: none; }
.inter-box { background: #fff; border-radius: var(--radius); width: 100%; max-width: 360px; overflow: hidden; }
.inter-bar { display: flex; justify-content: space-between; align-items: center; padding: 6px 6px 6px 12px; border-bottom: 1px solid var(--line); }
.x { width: 44px; height: 44px; border: 0; background: none; font-size: 28px; line-height: 1; color: var(--ink); cursor: pointer; }
.inter-body { padding: 12px; text-align: center; }
.inter-body img { max-width: 100%; height: auto; }

.foot { font-size: 12px; color: var(--muted); padding-top: 8px; padding-bottom: 32px; border-top: 1px solid var(--line); margin-top: 8px; }
.foot p { margin: 6px 0; }

@media (min-width: 720px) {
  .opts.grid2 { grid-template-columns: 1fr 1fr 1fr; }
  h1 { font-size: 28px; }
}