@charset "UTF-8";
/* ==========================================================
   Paltisでクリエイターになろう｜パソコンスクール パルティス
   元サイト（BiNDup / dress: b13011n）の配色・タイポグラフィを再現
   main:#4F575C sub2:#F2F2F2 sub4:#d1e3f5 sub5:#1e3046
   ========================================================== */
:root {
  --main: #4F575C;
  --sub1: #3e3a39;
  --sub2: #F2F2F2;
  --sub3: #ffffff;
  --sub4: #d1e3f5;
  --sub5: #1e3046;
  --accent: #EA5514;
  --font-body: "M PLUS 1p", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.95;
  color: var(--sub5);
  background-color: var(--sub4);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--main); transition: .2s ease; }
a:hover { opacity: .75; }
:focus-visible { outline: 3px solid var(--sub5); outline-offset: 2px; }

.inner { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------- ヘッダー ---------- */
.site-header {
  background: var(--sub3);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 6px rgba(30, 48, 70, .12);
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px 8px;
  max-width: 1200px;
  margin: 0 auto;
}
.header-logo { flex: 1 1 auto; min-width: 0; }
.header-logo img { width: 100%; max-width: 620px; height: auto; }
.header-cta {
  flex: 0 0 auto;
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 13px;
  line-height: 1.4;
  text-align: center;
  padding: 10px 18px;
  border-radius: 4px;
}
.header-cta:hover { background: #c94812; opacity: 1; }

/* グローバルナビ */
.global-nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0 6px;
  padding: 4px 12px 10px;
  max-width: 1200px;
  margin: 0 auto;
}
.global-nav a {
  display: block;
  padding: 4px 12px;
  text-decoration: none;
  color: var(--sub5);
  font-weight: 700;
  font-size: 13px;
  position: relative;
}
/* ホバー時のアンダーラインアニメーション */
.global-nav a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 2px;
  border-radius: 1px;
  background: var(--sub5);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.global-nav a:hover { opacity: 1; }
.global-nav a:hover::after { transform: scaleX(1); }

.nav-toggle { display: none; }

/* ---------- スライドショー ---------- */
.billboard {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 5.25;
  max-height: 420px;
  overflow: hidden;
  background: var(--sub5);
}
.billboard .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.billboard .slide.is-active { opacity: 1; }
.billboard .slide img { width: 100%; height: 100%; object-fit: cover; }
/* ゆっくりズーム（Ken Burns）演出 */
@keyframes kenburns {
  from { transform: scale(1); }
  to   { transform: scale(1.08); }
}
.billboard .slide.is-active img { animation: kenburns 7s ease-out forwards; }
/* 下端をやわらかくつなぐグラデーション */
.billboard::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 18%;
  background: linear-gradient(to bottom, transparent, rgba(30, 48, 70, .28));
  pointer-events: none;
}

/* ---------- セクション共通 ---------- */
.section { padding: 64px 0; }
.section:nth-of-type(even) { background: var(--sub3); }
.section-title {
  font-size: clamp(28px, 4.5vw, 45px);
  font-weight: 700;
  line-height: 1.5;
  text-align: center;
  letter-spacing: .04em;
}
/* 見出し下のアクセントバー */
.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--sub5), var(--main));
  margin: 14px auto 0;
}
.section-lead {
  font-size: 1.25em;
  font-weight: 300;
  line-height: 1.5;
  text-align: center;
  margin: 12px 0 44px;
}

/* ---------- スクロール表示演出 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}
.headline {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 16px;
}
.subheadline {
  font-size: 1.2em;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 12px;
}

/* ボタン */
.btn {
  display: inline-block;
  background: var(--sub5);
  color: var(--sub4);
  text-decoration: none;
  font-weight: 700;
  text-align: center;
  padding: 12px 32px;
  border-radius: 4px;
}
.btn:hover { background: var(--main); opacity: 1; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(30,48,70,.25); }
.btn { transition: .25s ease; }

/* トップへ戻るボタン */
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--sub5);
  color: var(--sub4);
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: .3s ease;
  box-shadow: 0 4px 14px rgba(30, 48, 70, .3);
  z-index: 99;
}
.back-to-top.is-shown { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { background: var(--main); }
.btn-outline {
  background: transparent;
  color: var(--sub5);
  border: 2px solid var(--sub5);
}
.btn-outline:hover { background: var(--sub5); color: var(--sub4); }

/* お問い合わせセクションのボタン（リンク先サイトの赤 #DA3944 に統一） */
.cta-buttons .btn,
.cta-buttons .btn-outline {
  background: #DA3944;
  color: #fff;
  border: none;
}
.cta-buttons .btn:hover,
.cta-buttons .btn-outline:hover {
  background: #B82C36;
  color: #fff;
}
.cta-note {
  text-align: center;
  font-size: 12px;
  color: var(--main);
  margin-top: 12px;
}

/* ---------- お知らせ ---------- */
.news-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  align-items: start;
}
.news-list { list-style: none; }
.news-list > li { padding: 14px 0; border-bottom: 1px dashed rgba(30, 48, 70, .35); }
.news-date {
  display: inline-block;
  font-weight: 700;
  font-size: 13px;
  color: var(--sub3);
  background: var(--main);
  border-radius: 3px;
  padding: 0 10px;
  line-height: 1.8;
  margin-bottom: 4px;
}
.news-title { font-weight: 700; }
.news-title a { color: inherit; text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.news-title a:hover { color: var(--accent); }
.news-body { font-size: 13px; }
.news-body a { font-weight: 700; }
.instagram-wrap { display: flex; justify-content: center; }

/* ---------- スクール紹介（記事：ヨコ並び） ---------- */
.intro-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}
.intro-layout .headline { font-size: clamp(18px, 2.6vw, 24px); }
.intro-media img { border-radius: 6px; }
.intro-media .btn { margin-top: 20px; width: 100%; }

/* ---------- DTPデザイン（講座カード） ---------- */
.course { 
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 32px;
  background: var(--sub2);
  border-radius: 14px;
  padding: 36px;
  margin-bottom: 36px;
  align-items: start;
  box-shadow: 0 2px 10px rgba(30, 48, 70, .08);
  transition: box-shadow .3s ease, transform .3s ease;
}
.course:hover {
  box-shadow: 0 10px 28px rgba(30, 48, 70, .16);
  transform: translateY(-3px);
}
.course-media img { border-radius: 10px; }
.course-name {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 12px;
}
.course h4,
.tab-panel h4 {
  font-size: 1.1em;
  font-weight: 700;
  line-height: 1.6;
  margin: 20px 0 4px;
  padding-left: 10px;
  border-left: 5px solid var(--accent);
}
.tab-panel h4 { margin-top: 32px; }
.course .curriculum {
  font-size: 13px;
  background: var(--sub3);
  border-radius: 4px;
  padding: 10px 14px;
  margin: 6px 0;
}
.fee {
  font-weight: 700;
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}
.fee span {
  display: inline-block;
  background: var(--sub3);
  border: 1px solid rgba(30, 48, 70, .18);
  border-radius: 999px;
  padding: 2px 14px;
  line-height: 1.9;
  white-space: nowrap;
}
.fee-note {
  font-size: 12px;
  color: var(--main);
  margin-top: 6px;
}

/* ---------- Webデザイン（PC：タブ / スマホ：アコーディオン） ---------- */
.tabs { margin-top: 8px; }
.tab-nav {
  display: flex;
  list-style: none;
  gap: 8px;
  border-bottom: 2px solid rgba(30, 48, 70, .15);
}
.tab-nav button {
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--sub5);
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  padding: 12px 24px 10px;
  cursor: pointer;
  transition: .25s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: .55;
}
.tab-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--sub3);
  background: var(--sub5);
  border-radius: 999px;
  padding: 1px 9px;
  line-height: 1.7;
}
.tab-nav button:hover { opacity: 1; }
.tab-nav button[aria-selected="true"] {
  opacity: 1;
  border-bottom-color: var(--sub5);
}
.tab-panel {
  background: var(--sub2);
  border-radius: 0 0 14px 14px;
  padding: 40px;
  box-shadow: 0 2px 10px rgba(30, 48, 70, .08);
  animation: fadein .4s ease;
}
@keyframes fadein {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}
.tab-panel[hidden] { display: none; }
.tab-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 36px;
  align-items: start;
}
.tab-grid img { border-radius: 10px; box-shadow: 0 4px 14px rgba(30,48,70,.12); }
.tab-panel .headline { margin-top: 0; }

/* アコーディオン見出し（スマホ専用） */
.acc-header { margin: 0; }
.acc-toggle { display: none; }

/* ---------- Macスクールバナー ---------- */
.banner { padding: 48px 0; text-align: center; }
.banner a { display: inline-block; }
.banner img { border-radius: 8px; box-shadow: 0 4px 16px rgba(30,48,70,.18); margin: 0 auto; }

/* ---------- 受講生の声 ---------- */
.voice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.voice {
  background: var(--sub2);
  border-radius: 14px;
  padding: 30px;
  position: relative;
  box-shadow: 0 2px 10px rgba(30, 48, 70, .08);
  transition: box-shadow .3s ease, transform .3s ease;
}
.voice:hover {
  box-shadow: 0 10px 28px rgba(30, 48, 70, .16);
  transform: translateY(-3px);
}
/* 引用符の装飾 */
.voice::before {
  content: "\201C";
  position: absolute;
  top: 6px;
  right: 20px;
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
  color: rgba(79, 87, 92, .18);
  pointer-events: none;
}
.voice-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 4px;
}
.voice-meta {
  font-size: 12px;
  color: var(--main);
  font-weight: 700;
  margin-bottom: 12px;
}
.voice p { font-size: 13px; }

/* ---------- アクセス ---------- */
.access-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 40px;
  align-items: start;
}
.access-map iframe {
  width: 100%;
  height: 340px;
  border: 0;
  border-radius: 8px;
}
.access-table { width: 100%; border-collapse: collapse; }
.access-table th, .access-table td {
  text-align: left;
  vertical-align: top;
  padding: 12px 8px;
  border-bottom: 1px solid rgba(30,48,70,.2);
  font-size: 13px;
}
.access-table th { width: 8.5em; font-weight: 700; white-space: nowrap; }
.access-table .note { display: block; font-size: 12px; color: var(--main); }

/* ---------- お問い合わせ ---------- */
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}
.cta-buttons .btn { min-width: 240px; }

/* ---------- フッター ---------- */
.site-footer {
  background: var(--sub5);
  color: var(--sub4);
  padding: 40px 0 24px;
  text-align: center;
}
.footer-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 20px;
  margin-bottom: 24px;
}
.footer-nav a {
  color: var(--sub4);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
}
.footer-nav a:hover { text-decoration: underline; }
.copyright { font-size: 12px; opacity: .8; }

/* ---------- 下層ページ ---------- */
.page-title-area {
  background: var(--sub3);
  padding: 48px 0 32px;
}
.page-title {
  font-size: clamp(26px, 4vw, 35px);
  font-weight: 700;
  line-height: 1.5;
}
.breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  font-size: 12px;
  margin-top: 8px;
}
.breadcrumb li + li::before { content: "›"; margin: 0 6px; }
.breadcrumb a { color: var(--main); }

.policy-body { background: var(--sub3); padding: 48px 0 80px; }
.policy-body section { margin-bottom: 40px; }
.policy-body h2 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.6;
  padding-left: 12px;
  border-left: 5px solid var(--main);
  margin-bottom: 16px;
}
.policy-body p { margin-bottom: 1em; font-size: 13px; }
.policy-body ol, .policy-body ul { padding-left: 1.6em; font-size: 13px; margin-bottom: 1em; }

/* ---------- レスポンシブ ---------- */
@media (max-width: 900px) {
  .news-layout, .intro-layout, .access-layout, .tab-grid { grid-template-columns: 1fr; }
  .course { grid-template-columns: 1fr; }
  .course-media { max-width: 420px; margin: 0 auto; }
  .voice-grid { grid-template-columns: 1fr; }
  .billboard { aspect-ratio: 16 / 9; }
}

@media (max-width: 768px) {
  .header-top { flex-wrap: wrap; }
  .header-cta { font-size: 12px; padding: 8px 12px; }
  .nav-toggle {
    display: block;
    font-family: inherit;
    font-size: 13px;
    font-weight: 700;
    background: var(--sub5);
    color: var(--sub4);
    border: none;
    border-radius: 4px;
    padding: 8px 14px;
    cursor: pointer;
  }
  .global-nav { display: none; }
  .global-nav.is-open { display: block; }
  .global-nav ul { flex-direction: column; gap: 0; }
  .global-nav a { padding: 10px 12px; border-top: 1px solid var(--sub2); border-radius: 0; }
  /* スマホ：タブナビを隠し、アコーディオンに切り替え */
  .tab-nav { display: none; }
  .tab-item { margin-bottom: 12px; }
  .acc-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    font-family: inherit;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.5;
    text-align: left;
    color: var(--sub5);
    background: var(--sub3);
    border: 1px solid rgba(30, 48, 70, .18);
    border-radius: 12px;
    padding: 14px 18px;
    cursor: pointer;
    transition: .25s ease;
  }
  .acc-toggle[aria-expanded="true"] {
    background: var(--sub5);
    color: var(--sub4);
    border-color: var(--sub5);
    border-radius: 12px 12px 0 0;
  }
  .acc-toggle[aria-expanded="true"] .tab-num { background: var(--sub4); color: var(--sub5); }
  .acc-icon {
    margin-left: auto;
    width: 12px;
    height: 12px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    transition: transform .25s ease;
  }
  .acc-toggle[aria-expanded="true"] .acc-icon { transform: rotate(225deg) translateY(-2px); }
  .tab-panel { border-radius: 0 0 12px 12px; margin-top: 0; padding: 20px; }
  .section { padding: 44px 0; }
}

/* ---------- 関連コンテンツ ---------- */
.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.related-card {
  display: block;
  background: var(--sub2);
  border-radius: 14px;
  padding: 26px 30px;
  text-decoration: none;
  color: var(--sub5);
  box-shadow: 0 2px 10px rgba(30, 48, 70, .08);
  transition: box-shadow .3s ease, transform .3s ease;
}
.related-card:hover {
  opacity: 1;
  box-shadow: 0 10px 28px rgba(30, 48, 70, .16);
  transform: translateY(-3px);
}
.related-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--main);
  margin-bottom: 8px;
}
.related-title::after {
  content: " ›";
  color: var(--accent);
}
.related-text {
  font-size: 13.5px;
  line-height: 1.8;
}
@media (max-width: 768px) {
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-card { padding: 22px 24px; }
}

/* ---------- 視覚的に非表示（スクリーンリーダー・クローラー向けテキスト） ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 画像キャプション ---------- */
.img-figure { margin: 0; }
.img-figure figcaption {
  /* マークアップは維持しつつ視覚的に非表示（診断ツール・検索エンジンには認識される） */
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ===== 期間限定：夏T-シャツ作ろうセミナー ===== */
.summer-seminar {
  --sea: #28a2d8;
  --sea-deep: #0e6fa8;
  --sun: #ffd84d;
  --coral: #ff5a4e;
  --leaf: #2fae62;
  position: relative;
  background:
    radial-gradient(circle at 12% 18%, rgba(255,255,255,.25) 0px, rgba(255,255,255,.25) 60px, transparent 61px),
    radial-gradient(circle at 88% 30%, rgba(255,255,255,.2) 0px, rgba(255,255,255,.2) 80px, transparent 81px),
    radial-gradient(circle at 75% 85%, rgba(255,216,77,.35) 0px, rgba(255,216,77,.35) 90px, transparent 91px),
    linear-gradient(180deg, #35b3e6 0%, #28a2d8 55%, #1e93cb 100%);
  color: #fff;
  padding: 96px 20px 110px;
  margin: 0;
  overflow: hidden;
  text-align: center;
}
.summer-seminar .inner { max-width: 1000px; margin: 0 auto; position: relative; z-index: 1; }

.summer-seminar .wave {
  position: absolute; left: 0; width: 100%; height: 60px; line-height: 0; z-index: 0;
}
.summer-seminar .wave svg { width: 100%; height: 60px; display: block; }
.summer-seminar .wave-top { top: -1px; transform: rotate(180deg); }
.summer-seminar .wave-top svg path { fill: var(--sub3); }
.summer-seminar .wave-bottom { bottom: -1px; transform: rotate(180deg); }
.summer-seminar .wave-bottom svg path { fill: var(--sub3); }

.summer-badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: #fff; color: var(--sea-deep);
  font-weight: 700; font-size: 0.95rem;
  padding: 8px 20px; border-radius: 999px;
  box-shadow: 0 3px 10px rgba(14,111,168,.3);
}
.summer-badge span {
  background: var(--coral); color: #fff;
  font-size: 0.8rem; padding: 3px 10px; border-radius: 999px;
}
.summer-catch {
  margin-top: 26px; font-weight: 700; font-size: 1.1rem;
  color: var(--sun); letter-spacing: .05em;
  text-shadow: 0 1px 3px rgba(14,111,168,.4);
}
.summer-title {
  margin: 8px 0 18px; font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700; letter-spacing: .04em; line-height: 1.25;
  text-shadow: 0 3px 0 rgba(14,111,168,.55);
}
.summer-lead { font-size: 1rem; line-height: 1.9; opacity: .96; }

.summer-highlight {
  display: inline-flex; align-items: center; gap: 12px;
  margin: 22px auto 0; padding: 12px 29px;
  background: #2c5b82;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 999px;
  font-weight: 700; font-size: 1.18rem;
}
.summer-highlight .highlight-icon { width: 24px; height: 24px; color: var(--sun); flex-shrink: 0; }
.summer-highlight strong { color: #ec1c24; }

.summer-steps {
  list-style: none; display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 22px; margin: 40px 0 36px; padding: 0; text-align: left;
}
.summer-step {
  background: #fff; color: var(--sub1);
  border-radius: 16px; padding: 26px 22px;
  box-shadow: 0 6px 18px rgba(14,111,168,.25);
  border-top: 6px solid var(--sun);
}
.summer-step .step-num {
  display: inline-block; background: var(--leaf); color: #fff;
  font-weight: 700; font-size: .78rem; letter-spacing: .08em;
  padding: 4px 12px; border-radius: 999px; margin-bottom: 12px;
}
.summer-step h3 { font-size: 1.1rem; margin-bottom: 10px; color: var(--sea-deep); }
.summer-step p { font-size: .92rem; line-height: 1.8; }

.summer-info {
  display: flex; justify-content: center; align-items: center; gap: 28px; flex-wrap: wrap; margin-bottom: 30px;
}
.summer-price {
  background: var(--sun); color: var(--sub1);
  border-radius: 16px; padding: 20px 32px; min-width: 280px;
  box-shadow: 0 6px 18px rgba(14,111,168,.25);
}
.price-label {
  font-weight: 700; font-size: .85rem; color: var(--sea-deep);
  letter-spacing: .1em; margin-bottom: 6px;
}
.price-main { font-weight: 700; font-size: 1.05rem; }
.price-main strong { font-size: 1.7rem; color: var(--coral); margin-left: 6px; }
.price-main .tax { font-size: .85rem; }

/* Tシャツシルエットの特典 */
.summer-present {
  position: relative; width: 250px; aspect-ratio: 200 / 180;
  filter: drop-shadow(0 6px 14px rgba(14,111,168,.3));
}
.present-tee { position: absolute; inset: 0; width: 100%; height: 100%; }
.present-body {
  position: absolute; inset: 26% 28% 8% 28%;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; color: var(--sea-deep);
}
.present-label {
  font-weight: 700; font-size: .78rem; letter-spacing: .12em;
  background: var(--coral); color: #fff;
  padding: 3px 12px; border-radius: 999px; margin-bottom: 8px;
}
.present-main { font-weight: 700; font-size: .98rem; line-height: 1.5; }

/* マスコット */
.summer-mascot { margin: 0; width: 210px; flex-shrink: 0; }
.summer-mascot img {
  width: 100%; height: auto; display: block;
  filter: drop-shadow(0 8px 16px rgba(14,111,168,.35));
  animation: mascot-bob 3.5s ease-in-out infinite;
}
@keyframes mascot-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@media (prefers-reduced-motion: reduce) {
  .summer-mascot img { animation: none; }
}

.summer-note { font-weight: 700; font-size: 1rem; margin-bottom: 28px; letter-spacing: .03em; }

.btn-summer {
  display: inline-block; background: var(--coral); color: #fff;
  font-weight: 700; font-size: 1.05rem; text-decoration: none;
  padding: 16px 48px; border-radius: 999px;
  box-shadow: 0 5px 0 #d43e33;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn-summer:hover { transform: translateY(3px); box-shadow: 0 2px 0 #d43e33; }

.sp-only { display: none; }

@media (max-width: 768px) {
  .summer-seminar { padding: 80px 16px 96px; }
  .summer-steps { grid-template-columns: 1fr; gap: 16px; margin: 34px 0 28px; }
  .summer-info { flex-direction: column; align-items: center; gap: 18px; }
  .summer-mascot { width: 170px; order: -1; }
  .summer-price { min-width: 0; width: 100%; }
  .summer-present { width: 230px; }
  .sp-only { display: inline; }
}

/* 不自然な改行を防止（意味のまとまりを分割させない） */
.summer-seminar .nowrap-ja { white-space: nowrap; }

@media (max-width: 480px) {
  .btn-summer { font-size: .95rem; padding: 15px 32px; line-height: 1.5; }
}