/* ダイガクPCチェック 共通スタイル。外部フォント・画像なし。 */
:root {
  --bg: #ffffff;
  --bg-soft: #f4f6fa;
  --text: #1b1f27;
  --muted: #545b68;
  --line: #d8dde6;
  --accent: #1F5FAF;
  --accent-ink: #ffffff;
  --accent-soft: #e8f0fb;
  --ok-bg: #e7f5ec; --ok-ink: #14532d; --ok-line: #3d9a62;
  --warn-bg: #fff6d9; --warn-ink: #5c4200; --warn-line: #c99a06;
  --ng-bg: #fdecec; --ng-ink: #7f1d1d; --ng-line: #d04545;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b;
    --bg-soft: #1b2029;
    --text: #e8ebf0;
    --muted: #a9b0bd;
    --line: #333a47;
    --accent: #7fb0f0;
    --accent-ink: #0d1520;
    --accent-soft: #1c2a40;
    --ok-bg: #12301f; --ok-ink: #bdf0cf; --ok-line: #3d9a62;
    --warn-bg: #352a08; --warn-ink: #f7e2a0; --warn-line: #c99a06;
    --ng-bg: #3a1616; --ng-ink: #f8c4c4; --ng-line: #d04545;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 8px; top: 8px; background: var(--bg); padding: 8px; z-index: 10; }

/* ヘッダー */
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 16px; padding-top: 8px; padding-bottom: 8px; }
.logo { font-weight: 700; color: var(--text); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; min-height: 44px; }
.logo svg { flex: none; }
.logo small { font-weight: 400; color: var(--muted); font-size: 12px; }
.nav { display: flex; flex-wrap: wrap; gap: 0 4px; margin-left: auto; }
.nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 8px; text-decoration: none; color: var(--text); border-radius: 6px; font-size: 15px; }
.nav a:hover { background: var(--bg-soft); }
.nav a[aria-current="page"] { color: var(--accent); font-weight: 700; }

main { padding: 24px 0 40px; }
h1 { font-size: 26px; line-height: 1.4; margin: 8px 0 12px; }
h2 { font-size: 20px; line-height: 1.5; margin: 32px 0 12px; }
h3 { font-size: 17px; margin: 20px 0 8px; }
p { margin: 0 0 12px; }
.lead { font-size: 17px; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 14px; }
ul, ol { padding-left: 1.4em; margin: 0 0 12px; }

/* ボタン */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 10px 20px; border-radius: var(--radius); border: 2px solid var(--accent); background: var(--accent); color: var(--accent-ink); font-size: 16px; font-weight: 700; text-decoration: none; cursor: pointer; font-family: inherit; }
.btn:hover { filter: brightness(1.08); }
.btn.secondary { background: transparent; color: var(--accent); }
.btn.block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 16px 0; }

/* カード・ボックス */
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; background: var(--bg); margin: 0 0 16px; }
.soft { background: var(--bg-soft); border-color: transparent; }
.notice { border-left: 4px solid var(--accent); background: var(--accent-soft); padding: 12px 14px; border-radius: 6px; margin: 16px 0; }
.grid { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .grid.two { grid-template-columns: 1fr 1fr; } .grid.three { grid-template-columns: 1fr 1fr 1fr; } }

/* バッジ */
.badge { display: inline-block; font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg-soft); color: var(--text); vertical-align: middle; white-space: nowrap; }
.badge.draft { background: var(--warn-bg); color: var(--warn-ink); border-color: var(--warn-line); }
.badge.coop { background: var(--accent-soft); color: var(--text); border-color: var(--accent); }
.badge.pr { background: #444; color: #fff; border-color: #444; }
.badge.sample { background: var(--ng-bg); color: var(--ng-ink); border-color: var(--ng-line); }

/* 表 */
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.req { width: 100%; border-collapse: collapse; font-size: 15px; }
table.req th, table.req td { border-bottom: 1px solid var(--line); padding: 10px 8px; text-align: left; vertical-align: top; }
table.req th { width: 32%; font-weight: 700; background: var(--bg-soft); }
@media (max-width: 520px) {
  table.req, table.req tbody, table.req tr, table.req th, table.req td { display: block; width: 100%; }
  table.req th { border-bottom: none; padding-bottom: 2px; }
  table.req td { padding-top: 2px; }
}
.list-univ { list-style: none; padding: 0; margin: 0; }
.list-univ li { border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; margin-bottom: 10px; }
.list-univ a.name { font-weight: 700; font-size: 17px; display: inline-block; min-height: 32px; }
.meta { font-size: 14px; color: var(--muted); }

/* フォーム */
.field { margin: 0 0 16px; }
.field label, .field .label { display: block; font-weight: 700; margin-bottom: 4px; }
.field .hint { font-size: 14px; color: var(--muted); margin: 0 0 6px; }
input[type="text"], input[type="search"], select { width: 100%; min-height: 48px; padding: 8px 12px; font-size: 16px; font-family: inherit; color: var(--text); background: var(--bg); border: 1px solid #8a93a3; border-radius: 8px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.choices { display: flex; flex-wrap: wrap; gap: 8px; border: 0; padding: 0; margin: 0; }
.choices legend { font-weight: 700; margin-bottom: 6px; padding: 0; }
.choices label { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 6px 14px; border: 1px solid #8a93a3; border-radius: 999px; cursor: pointer; font-weight: 400; }
.choices input { width: 20px; height: 20px; margin: 0; accent-color: var(--accent); }
.choices label:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); font-weight: 700; }

/* 判定結果 */
.summary { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 12px; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 999px; font-weight: 700; font-size: 15px; border: 2px solid; }
.result-item { border: 2px solid; border-radius: var(--radius); padding: 12px 14px; margin: 0 0 10px; }
.result-item .head { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.result-item .status { display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px; border-radius: 999px; font-size: 14px; white-space: nowrap; }
.result-item p { margin: 6px 0 0; font-size: 15px; }
.s-ok { background: var(--ok-bg); color: var(--ok-ink); border-color: var(--ok-line); }
.s-warn { background: var(--warn-bg); color: var(--warn-ink); border-color: var(--warn-line); }
.s-ng { background: var(--ng-bg); color: var(--ng-ink); border-color: var(--ng-line); }
.result-item.s-ok .status { background: var(--ok-line); color: #fff; }
.result-item.s-warn .status { background: var(--warn-line); color: #1b1300; }
.result-item.s-ng .status { background: var(--ng-line); color: #fff; }

/* 料金 */
.plan h3 { margin-top: 0; }
.plan .price { font-size: 26px; font-weight: 700; margin: 4px 0 8px; }
.plan.featured { border: 2px solid var(--accent); }

/* PR */
.pr-box { border: 1px dashed var(--muted); border-radius: var(--radius); padding: 12px 14px; margin: 12px 0; }
.amazon-note { font-size: 13px; color: var(--muted); margin-top: 6px; }
.aff-group { margin: 10px 0 2px; }
.aff-list { list-style: none; padding: 0; margin: 0; }
.aff-list li { min-height: 44px; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; }

/* PCと一緒にそろえるもの（goods.html） */
.goods-toc ul { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.goods-toc a { display: inline-flex; align-items: center; min-height: 40px; padding: 4px 14px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-size: 14px; background: var(--bg-soft); }
.goods-card { scroll-margin-top: 12px; }
.goods-card > h2 { margin-top: 0; }
.goods-links { border-top: 1px dashed var(--line); margin-top: 12px; padding-top: 12px; }
.goods-btns { display: flex; flex-wrap: wrap; gap: 8px; }
.goods-btns .btn { flex: 1 1 220px; }
.goods-kw { margin: 8px 0 0; }

/* フッター */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-soft); padding: 24px 0 32px; font-size: 14px; color: var(--muted); }
.site-footer p { margin: 0 0 6px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 0 4px; margin-top: 12px; }
.site-footer nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 8px; color: var(--text); }
.site-footer strong { color: var(--text); }

.card > h3:first-child { margin-top: 0; }

/* ===== トップページ（2026-10 刷新） ===== */
:root { --t-band: #16273E; --t-band-sub: #C3CDDC; --t-hl: #CBE0F5; --t-row: #FAFBFD; }
@media (prefers-color-scheme: dark) { :root { --t-band: #0b111b; --t-hl: #1f3657; --t-row: #161b23; } }
.t-main { padding: 0 0 48px; }

.t-hero { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: center; padding-top: 28px; padding-bottom: 44px; }
@media (min-width: 880px) { .t-hero { grid-template-columns: 1fr 1.05fr; padding-top: 52px; padding-bottom: 60px; } }
.t-hero > div { min-width: 0; }
.t-kicker { display: inline-block; font-size: 13px; font-weight: 700; color: var(--accent); background: var(--accent-soft); border-radius: 999px; padding: 4px 14px; margin: 0 0 12px; }
.t-hero h1 { font-size: clamp(26px, 6vw, 38px); line-height: 1.4; margin: 0 0 12px; }
.t-u { background: linear-gradient(transparent 68%, var(--t-hl) 68%); }
.t-big { min-height: 52px; padding: 10px 24px; }
.t-shot { position: relative; margin: 0; min-width: 0; background: var(--bg); border: 1px solid var(--line); border-radius: 16px; padding: 18px 18px 34px; box-shadow: 0 18px 50px rgba(22, 39, 62, .10); }
.t-bar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 6px; font-size: 14px; margin-bottom: 10px; }
.t-bar span { font-size: 12px; color: var(--muted); background: var(--bg-soft); border-radius: 999px; padding: 2px 10px; }
.t-chip { display: inline-block; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 13px; border-radius: 9px; padding: 4px 12px; margin: 0 0 10px; }
.t-rows { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.t-rows li { display: grid; grid-template-columns: 4.2em minmax(0, 1fr) auto; gap: 10px; align-items: center; background: var(--t-row); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; font-size: 14px; }
.t-rows .k { font-weight: 700; }
.t-rows .v { font-size: 14px; }
.t-rows .v small { display: block; font-size: 12px; color: var(--muted); line-height: 1.5; }
.t-rows .status { display: inline-flex; justify-content: center; min-width: 4.2em; padding: 3px 8px; border-radius: 7px; font-size: 13px; font-weight: 800; border: 1px solid; }
.t-rows .status.ok { background: var(--ok-bg); color: var(--ok-ink); border-color: var(--ok-line); }
.t-rows .status.warn { background: var(--warn-bg); color: var(--warn-ink); border-color: var(--warn-line); }
.t-rows .status.ng { background: var(--ng-bg); color: var(--ng-ink); border-color: var(--ng-line); }
.t-src { font-size: 12px; color: var(--muted); border-top: 1px dashed var(--line); padding-top: 8px; margin: 10px 0 0; }
.t-stamp { position: absolute; right: 14px; bottom: -16px; margin: 0; background: #143E82; color: #fff; font-size: 13px; font-weight: 700; border-radius: 999px; padding: 6px 14px; box-shadow: 0 8px 20px rgba(20, 62, 130, .3); }
.t-band { background: var(--t-band); color: #fff; padding: 28px 0; }
.t-feats { list-style: none; display: grid; grid-template-columns: 1fr; gap: 20px; margin: 0 auto; }
@media (min-width: 760px) { .t-feats { grid-template-columns: repeat(3, 1fr); } }
.t-feats li { display: flex; gap: 13px; }
.t-feats h2 { font-size: 16px; margin: 0 0 4px; color: #fff; }
.t-feats p { font-size: 13px; color: var(--t-band-sub); margin: 0; line-height: 1.65; }
.t-ic { flex: none; width: 42px; height: 42px; border-radius: 11px; background: #1F5FAF; color: #fff; display: grid; place-items: center; }
.t-ic svg { width: 21px; height: 21px; }
.t-sec > h2 { font-size: clamp(22px, 4vw, 28px); margin: 40px 0 16px; }
.t-unis .list-univ { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 760px) { .t-unis .list-univ { grid-template-columns: 1fr 1fr; } }
.t-unis .list-univ li { margin: 0; background: var(--bg); }
.t-unis .list-univ li[hidden] { display: none; }
.t-more { font-weight: 700; }
.t-steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; max-width: 760px; }
.t-steps li { display: flex; gap: 14px; align-items: flex-start; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.t-steps h3 { margin: 0; font-size: 16px; }
.t-steps p { margin: 2px 0 0; font-size: 14px; color: var(--muted); }
.t-n { flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 800; font-size: 14px; }
.t-final { background: var(--accent-soft); border-radius: 20px; padding: 36px 20px; text-align: center; margin-top: 44px; }
.t-final h2 { margin: 0 0 8px; font-size: clamp(20px, 4vw, 26px); }

/* 運営者メモ */
.memo { background: #F3F7FF; border-left: 4px solid #1F5FAF; padding: 8px 12px; border-radius: 8px; margin: 10px 0; }

/* ---- PCはいつ買う？（jiki.html） ---- */
.jiki-form input[type="date"], .jiki-form input[type="number"] { width: 100%; max-width: 100%; min-height: 44px; padding: 8px 10px; font: inherit; color: inherit; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; }
.jiki-form .field .hint { display: block; }
.jiki-out { margin-top: 16px; }
.jiki-empty { padding: 12px 14px; border: 1px dashed var(--line); border-radius: 10px; }
.jiki-sum { font-size: 1.1rem; margin: 0 0 10px; }
.jiki-sum strong { font-size: 1.3rem; }
.jiki-sum .small { display: inline-block; margin-left: 6px; }
.jiki-warn { margin: 0 0 14px; padding: 10px 14px 10px 30px; border-radius: 10px; background: var(--warn-bg); color: var(--warn-ink); border: 1px solid var(--warn-line); }
.jiki-warn li + li { margin-top: 6px; }
.jiki-line { list-style: none; margin: 0 0 12px; padding: 0 0 0 18px; border-left: 3px solid var(--line); }
.jiki-line li { position: relative; padding: 0 0 14px 8px; display: grid; gap: 2px; }
.jiki-line li::before { content: ""; position: absolute; left: -27px; top: 4px; width: 13px; height: 13px; border-radius: 50%; background: var(--bg); border: 3px solid var(--accent); }
.jiki-line li.is-key::before { background: var(--accent); }
.jiki-line li.is-key strong { color: var(--accent); }
.jiki-date { font-variant-numeric: tabular-nums; font-size: .92rem; }
.jiki-form .row2 > .field { min-width: 0; }
.jiki-form input[type="date"] { display: block; }
@media (max-width: 560px) { .jiki-form .row2 { grid-template-columns: 1fr; } }
.jiki-months { list-style: none; margin: 12px 0; padding: 0; display: grid; gap: 10px; }
.jiki-months > li { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; background: var(--bg-soft); }
.jiki-months h3 { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin: 0 0 6px; font-size: 1rem; }
.jiki-months ul { margin: 0; padding-left: 1.1em; }
.jiki-months ul li + li { margin-top: 4px; }
.jiki-months .small { display: block; }
.jiki-months h3 .small { display: inline; }
.jiki-sum strong { white-space: nowrap; }