@font-face {
  font-family: "Dela Gothic One";
  src: url("/sheet/dela.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

:root {
  --bg: #f4f7ff;
  --ink: #1c2340;
  --ink-sub: #5a6080;
  --cobalt: #2b4acb;
  --cobalt-deep: #1f378f;
  --lemon: #ffd23f;
  --soda: #dff3f7;
  --white: #fff;
  --pop: "Dela Gothic One", "Hiragino Sans", "Yu Gothic", sans-serif;
  --text: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", YuGothic, Meiryo, sans-serif;
  --zigzag: 14px;
}

*, *::before, *::after { box-sizing: border-box; }

ky-ticker, ky-brand, ky-wrap, ky-mosaic, ky-card, ky-sticker, ky-crumbs,
ky-hero, ky-titlecard, ky-ticket, ky-body, ky-next, ky-mini, ky-note,
ky-tags, ky-paper, ky-fcols, ky-fname, ky-fwarn, ky-date { display: block; }

html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--text);
  font-size: 16px;
  line-height: 1.85;
  overflow-wrap: anywhere;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--cobalt); text-underline-offset: 3px; }
a:hover { color: var(--cobalt-deep); }
a:focus-visible { outline: 3px solid var(--lemon); outline-offset: 2px; }

ky-wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
ky-wrap[data-narrow] { max-width: 752px; }

/* ===== ヘッダー：テロップ帯＋サイト名＋ギザギザ ===== */
header[data-site] { background: var(--white); position: relative; margin-bottom: calc(var(--zigzag) + 24px); }
header[data-site]::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: calc(var(--zigzag) * -1);
  height: var(--zigzag);
  background:
    linear-gradient(135deg, var(--lemon) 50%, transparent 50%) 0 0 / calc(var(--zigzag) * 2) var(--zigzag) repeat-x,
    linear-gradient(225deg, var(--lemon) 50%, transparent 50%) 0 0 / calc(var(--zigzag) * 2) var(--zigzag) repeat-x;
}
ky-ticker {
  background: var(--cobalt);
  color: var(--white);
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--pop);
  font-size: 13px;
  line-height: 30px;
  letter-spacing: .08em;
}
ky-ticker span { display: inline-block; padding-left: 100%; animation: ticker 22s linear infinite; }
@keyframes ticker { to { transform: translateX(-100%); } }
@media (prefers-reduced-motion: reduce) {
  ky-ticker span { animation: none; padding-left: 16px; }
}
ky-brand { padding: 20px 0 18px; }
ky-brand a { color: var(--ink); text-decoration: none; display: inline-block; }
ky-bmain, ky-bsub { display: block; }
ky-bmain { font-family: var(--pop); font-size: clamp(1.4rem, 4.2vw, 2.05rem); line-height: 1.3; letter-spacing: .02em; }
ky-bsub { margin-top: 6px; font-size: clamp(.82rem, 2.2vw, .95rem); color: var(--ink-sub); font-weight: 700; }
ky-brand h1, ky-brand p { margin: 0; font-size: inherit; font-weight: inherit; }

/* ===== TOP：モザイク ===== */
ky-mosaic {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 40px 28px;
  margin: 12px 0 64px;
}
ky-card { position: relative; }
ky-card a { color: var(--ink); text-decoration: none; display: block; }
ky-card figure { margin: 0; background: var(--white); border-radius: 8px; overflow: hidden; }
ky-card img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; transition: transform .25s; }
ky-card a:hover img { transform: scale(1.03); }
ky-sticker {
  position: relative;
  margin: -26px 12px 0;
  padding: 12px 16px;
  background: var(--lemon);
  border-radius: 8px;
  transform: rotate(-1.2deg);
}
ky-card:nth-child(even) ky-sticker { transform: rotate(1deg); }
ky-sticker h2 { margin: 0; font-family: var(--pop); font-weight: 400; font-size: 1.02rem; line-height: 1.5; }
ky-sticker time { display: block; font-size: .78rem; font-weight: 700; color: var(--cobalt-deep); margin-bottom: 2px; }
ky-card p { margin: 14px 4px 0; font-size: .92rem; color: var(--ink-sub); }
ky-card a:hover h2 { text-decoration: underline wavy var(--cobalt) 1px; text-underline-offset: 5px; }

@media (min-width: 840px) {
  ky-card:nth-child(1) { grid-column: 1 / 8; grid-row: 1 / 3; }
  ky-card:nth-child(2) { grid-column: 8 / 13; grid-row: 1; }
  ky-card:nth-child(3) { grid-column: 8 / 13; grid-row: 2; }
  ky-card:nth-child(4) { grid-column: 1 / 7; }
  ky-card:nth-child(5) { grid-column: 7 / 13; }
  ky-card:nth-child(1) ky-sticker h2 { font-size: 1.32rem; }
  ky-card:nth-child(1) p { font-size: 1rem; }
}
@media (max-width: 839px) {
  ky-mosaic { grid-template-columns: minmax(0, 1fr); gap: 36px; max-width: 640px; margin-left: auto; margin-right: auto; }
}

/* ===== パンくず ===== */
ky-crumbs ol { list-style: none; margin: 0 0 18px; padding: 0; font-size: .82rem; color: var(--ink-sub); display: flex; flex-wrap: wrap; }
ky-crumbs li + li::before { content: "▸"; color: var(--cobalt); margin: 0 .5em; }

/* ===== 記事ページ ===== */
ky-hero { max-width: 640px; margin: 0 auto; }
ky-hero figure { margin: 0; border-radius: 8px; overflow: hidden; background: var(--white); }
ky-hero img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
ky-titlecard {
  position: relative;
  margin: -44px 16px 0;
  padding: 18px 20px 16px;
  background: var(--white);
  border: 3px solid var(--cobalt);
  border-radius: 8px;
}
ky-titlecard h1 { margin: 0; font-family: var(--pop); font-weight: 400; font-size: clamp(1.3rem, 3.6vw, 1.75rem); line-height: 1.45; }
ky-titlecard time { display: inline-block; margin-top: 10px; padding: 0 10px; background: var(--lemon); border-radius: 4px; font-size: .8rem; font-weight: 700; }

/* 目次：左右に切り欠きのあるチケット */
ky-ticket {
  margin: 36px 0 40px;
  padding: 22px 34px 20px;
  background:
    radial-gradient(circle at 0 50%, var(--bg) 13px, transparent 14px),
    radial-gradient(circle at 100% 50%, var(--bg) 13px, transparent 14px),
    var(--soda);
  border-radius: 8px;
}
ky-ticket p { margin: 0 0 8px; font-family: var(--pop); font-size: 1.05rem; color: var(--cobalt-deep); letter-spacing: .1em; }
ky-ticket ol { list-style: none; margin: 0; padding: 0; }
ky-ticket li { position: relative; padding-left: 1.5em; margin: 4px 0; line-height: 1.6; }
ky-ticket li::before { content: "▶"; position: absolute; left: 0; top: .2em; font-size: .7em; color: var(--cobalt); }
ky-ticket a { color: var(--ink); text-decoration: none; }
ky-ticket a:hover { color: var(--cobalt); text-decoration: underline; }

ky-body h2 {
  margin: 52px 0 18px;
  padding: 14px 18px;
  background: var(--cobalt);
  color: var(--white);
  font-family: var(--pop);
  font-weight: 400;
  font-size: clamp(1.12rem, 3vw, 1.32rem);
  line-height: 1.5;
  scroll-margin-top: 16px;
}
ky-body h3 {
  margin: 34px 0 10px;
  font-size: 1.1rem;
  line-height: 1.6;
  text-decoration: underline wavy var(--lemon) 3px;
  text-underline-offset: 7px;
  text-decoration-skip-ink: none;
}
ky-body p { margin: 0 0 1.2em; }

/* 関連記事 */
ky-next { margin: 64px 0 72px; }
ky-next h2 { margin: 0 0 18px; font-family: var(--pop); font-weight: 400; font-size: 1.2rem; }
ky-next ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
ky-mini a { display: flex; gap: 14px; align-items: center; padding: 10px; background: var(--white); border-radius: 8px; color: var(--ink); text-decoration: none; height: 100%; }
ky-mini a:hover { outline: 2px solid var(--cobalt); }
ky-mini img { flex: 0 0 120px; width: 120px; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 6px; }
ky-mini span { font-size: .9rem; font-weight: 700; line-height: 1.55; }
@media (max-width: 640px) { ky-next ul { grid-template-columns: 1fr; } }

/* プライバシーポリシー */
ky-paper { margin-bottom: 72px; }
ky-paper h1 { font-family: var(--pop); font-weight: 400; font-size: clamp(1.4rem, 4vw, 1.9rem); margin: 0 0 24px; }
ky-paper h2 { font-family: var(--pop); font-weight: 400; font-size: 1.1rem; margin: 36px 0 8px; padding-bottom: 4px; text-decoration: underline wavy var(--lemon) 3px; text-underline-offset: 8px; }
ky-paper p { margin: 0 0 1em; }
ky-date { margin-top: 40px; color: var(--ink-sub); font-size: .9rem; }

/* 404 */
ky-note { text-align: center; padding: 24px 0 72px; }
ky-note h1 { display: inline-block; margin: 0 0 20px; padding: 6px 18px; background: var(--cobalt); color: var(--white); font-family: var(--pop); font-weight: 400; font-size: clamp(1.15rem, 3.6vw, 1.6rem); line-height: 1.5; transform: rotate(-1deg); }
ky-note p { margin: 0 auto 28px; max-width: 560px; text-align: left; }
ky-tags ul { list-style: none; margin: 0 0 32px; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
ky-tags a { display: inline-block; padding: 6px 14px; background: var(--lemon); border-radius: 6px; color: var(--ink); text-decoration: none; font-size: .88rem; font-weight: 700; text-align: left; }
ky-tags a:hover { background: var(--cobalt); color: var(--white); }

/* ===== フッター ===== */
footer[data-site] {
  position: relative;
  margin-top: var(--zigzag);
  background: var(--cobalt);
  color: #e9edff;
  font-size: .86rem;
  padding: 34px 0 20px;
}
footer[data-site]::before {
  content: "";
  position: absolute; left: 0; right: 0; top: calc(var(--zigzag) * -1);
  height: var(--zigzag);
  background:
    linear-gradient(45deg, var(--cobalt) 50%, transparent 50%) 0 0 / calc(var(--zigzag) * 2) var(--zigzag) repeat-x,
    linear-gradient(-45deg, var(--cobalt) 50%, transparent 50%) 0 0 / calc(var(--zigzag) * 2) var(--zigzag) repeat-x;
}
ky-fcols { display: grid; grid-template-columns: 1fr auto; gap: 18px 40px; align-items: start; }
ky-fname { font-family: var(--pop); font-size: 1.05rem; color: var(--lemon); margin: 0 0 8px; }
ky-fwarn { margin: 0; line-height: 1.75; max-width: 620px; }
footer[data-site] nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 18px; }
footer[data-site] nav a { color: var(--white); }
footer[data-site] small { display: block; margin-top: 26px; padding-top: 12px; border-top: 1px solid rgba(255, 255, 255, .25); font-size: .75rem; letter-spacing: .06em; color: #c9d1ff; }
@media (max-width: 640px) { ky-fcols { grid-template-columns: 1fr; } }