@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&family=Outfit:wght@500;600&display=swap");

:root {
  --ink: #222;
  --sub: #555;
  --line: #bdbdbd;
  --bg: #fff;
  --max: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ヘッダー */
.hero {
  max-width: var(--max);
  margin: 40px auto 0;
  background: linear-gradient(90deg, #1e1e1e 0%, #6b6b6b 55%, #a9a9a9 100%);
  color: #fff;
  padding: 36px 8%;
}
.hero h1 { margin: 0; font-size: clamp(28px, 4.5vw, 44px); font-weight: 700; letter-spacing: .08em; }
.hero h1 a { text-decoration: none; }

/* プロフィール */
.profile { padding: 40px 8% 20px; }
.label { display: inline-block; font-weight: 700; font-size: 14px; border-bottom: 1px solid var(--ink); margin-bottom: 12px; }
.profile .name { margin: 0; font-size: 16px; font-weight: 700; letter-spacing: .08em; line-height: 1.7; }
.profile p { font-size: 13px; color: var(--sub); margin: 0 0 18px; }
.btn {
  display: inline-block; background: #111; color: #fff; text-decoration: none;
  font-size: 13px; padding: 6px 28px; border-radius: 8px; transition: opacity .2s;
}
.btn:hover { opacity: .75; }

.photos { display: flex; justify-content: center; gap: 56px; margin: 32px 0 12px; flex-wrap: wrap; }
.photos img { width: 180px; aspect-ratio: 3/4; object-fit: cover; border-radius: 4px; }
.caption { text-align: center; font-weight: 500; letter-spacing: .1em; margin: 0 0 40px; }

/* セクション */
section.block { border-top: 1px solid var(--line); padding: 28px 3% 48px; }
.block h2 { font-family: "Outfit", sans-serif; font-weight: 500; font-size: 26px; margin: 0; line-height: 1.2; }
.block .sub { font-size: 13px; font-weight: 700; margin: 2px 0 24px; }

.news { list-style: none; margin: 0; padding: 0 0 0 4%; font-size: 14px; }
.news li { display: flex; gap: 12px; margin-bottom: 10px; }
.news time { flex: none; }
.news-link { margin-left: 4px; }
.more { display: inline-block; margin: 20px 0 0 4%; font-size: 14px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 6px; }
.card img { width: 100%; aspect-ratio: 3/2; object-fit: cover; border-radius: 8px; }
.card h3 { font-size: 13px; text-align: center; margin: 14px 8px 10px; line-height: 1.6; }
.card p { font-size: 12px; color: var(--sub); margin: 0 12px; text-align: center; line-height: 1.9; }
#portfolio .card img { object-fit: contain; background: #fafafa; }

/* フッター */
footer {
  max-width: var(--max); margin: 0 auto 40px; background: #222; color: #fff;
  text-align: center; padding: 28px 20px 36px;
}
footer .top { font-size: 12px; text-decoration: none; display: inline-block; margin-bottom: 28px; }
footer p { margin: 0; font-family: "Outfit", "Noto Sans JP", sans-serif; letter-spacing: .06em; font-size: 14px; line-height: 1.5; }

/* 過去のお知らせページ */
.page { padding: 40px 6% 60px; min-height: 50vh; }
.page h2 { font-size: 18px; margin: 0 0 20px; }
.page .news { padding: 0; }

@media (max-width: 720px) {
  .hero { margin-top: 0; padding: 28px 20px; }
  .profile { padding: 32px 20px 12px; }
  .photos { gap: 16px; }
  .photos img { width: 42vw; }
  .cards { grid-template-columns: 1fr; gap: 32px; }
  .news { padding: 0; }
  .news li { flex-direction: column; gap: 0; }
  .more { margin-left: 0; }
  footer { margin-bottom: 0; }
}
.page .more { margin-left: 0; }

/* グローバルナビ */
.gnav {
  max-width: var(--max); margin: 0 auto; display: flex; justify-content: flex-end;
  align-items: center; gap: 36px; padding: 14px 6%; font-size: 12px; line-height: 1.4;
}
.gnav a { text-decoration: none; padding-bottom: 2px; border-bottom: 1px solid transparent; }
.gnav a:hover, .gnav a[aria-current="page"] { border-bottom-color: var(--ink); }

/* 解説ページ */
.article { max-width: 920px; }
.a-sec { padding: 40px 4% 24px; }
.eyebrow { font-size: 16px; color: #777; font-weight: 500; letter-spacing: .1em; margin: 0 0 6px; }
.lead { font-size: clamp(22px, 3vw, 28px); margin: 0; letter-spacing: .08em; line-height: 1.5; }
.lead-sub { font-size: 17px; font-weight: 700; margin: 4px 0 18px; letter-spacing: .06em; }
.title { font-size: 22px; margin: 0 0 16px; letter-spacing: .08em; padding-left: .6em; }
.small { font-size: 13px; color: var(--sub); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; margin-top: 40px; }
.split p { font-size: 14px; letter-spacing: .04em; }
.split img { border-radius: 6px; width: 100%; }
.def { font-size: 15px; padding-left: .6em; letter-spacing: .04em; }

.steps-band { background: #f3f3f3; padding: 36px 0 28px; margin-top: 16px; }
.steps-band .wrap { padding-left: calc(4% + 20px); }
.steps { list-style: none; padding: 0; margin: 28px 0 0; counter-reset: s; }
.steps > li { background: #fff; border-radius: 8px; padding: 18px 22px; margin-bottom: 14px; }
.steps h3 { font-size: 15px; margin: 0 0 6px; display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.steps h3 span { font-family: "Outfit", sans-serif; font-size: 13px; background: #222; color: #fff; padding: 1px 10px; border-radius: 20px; font-weight: 500; }
.steps p { font-size: 13.5px; margin: 0 0 6px; color: #333; }
.steps ul { font-size: 13.5px; margin: 4px 0 8px; padding-left: 1.2em; }

.faq details { border-bottom: 1px solid #555; padding: 4px 0 10px; margin-bottom: 18px; }
.faq summary {
  list-style: none; cursor: pointer; font-weight: 700; font-size: 16px; padding: 10px 32px 10px 0;
  position: relative; letter-spacing: .04em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 8px; font-weight: 400; font-size: 20px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { font-size: 13.5px; margin: 4px 0 0; color: #333; }

@media (max-width: 720px) {
  .gnav { justify-content: center; gap: 24px; padding: 12px 16px; }
  .split { grid-template-columns: 1fr; gap: 20px; }
  .a-sec { padding: 32px 0 16px; }
  .steps-band .wrap { padding-left: 20px; }
  .title, .def { padding-left: 0; }
}