/* AI講座 — 8月度募集 LP（AIエージェント講座版）
   Editorial BtoB v3: 軽量タイポ調整版（900→700 / Oswald600 / 行間・サイズ絞り）
   ──────────────────────────────────────────────────── */

:root {
  --c-bg:      #fdfaf5;
  --c-bg-alt:  #f5f0e7;
  --c-ink:     #1c1917;
  --c-ink-2:   #26221f;
  --c-text:    #2b2724;
  --c-text-2:  #6b635c;
  --c-mute:    #98908a;
  --c-line:    #e9e2d8;
  --c-line-2:  #d6cdc0;

  --c-accent:   #e60012;
  --c-accent-d: #c00010;
  --c-coral:    #ff5a3c;
  --c-gold:     #c69a43;
  --c-gold-d:   #a87f2f;
  --c-line-green: #06c755;
  --grad-accent: linear-gradient(135deg, #ff5a3c, #e60012 60%, #c00010);
  --grad-rule:   linear-gradient(90deg, #e60012, #c69a43 55%, rgba(198, 154, 67, 0) 95%);
  --grad-dark:   linear-gradient(155deg, #1d1a17 0%, #14120f 45%, #241f1a 100%);

  --maxw:      1120px;
  --maxw-tight: 880px;

  --r: 8px;

  --shadow-sm: 0 1px 2px rgba(14, 15, 17, 0.06);
  --shadow-md: 0 14px 40px rgba(14, 15, 17, 0.10);

  --font-jp: "Noto Sans JP", -apple-system, BlinkMacSystemFont,
    "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo",
    system-ui, sans-serif;
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-num: "Oswald", "Noto Sans JP", sans-serif;

  font-family: var(--font-jp);
}

/* ──── reset ──── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 15.5px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
em { font-style: normal; color: var(--c-accent); }
strong { font-weight: 700; color: inherit; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.container--tight { max-width: var(--maxw-tight); }
.nw { white-space: nowrap; }
.br-sp { display: none; }
@media (max-width: 720px) { .br-sp { display: inline; } }

/* ──── header ──── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-line);
}
.site-header__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 15px 28px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { position: relative; display: flex; flex-direction: column; line-height: 1.2; padding-left: 18px; }
.brand::before {
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 6px;
  background: var(--c-accent);
}
.brand__name { font-weight: 700; font-size: 17px; color: var(--c-ink); letter-spacing: 0.02em; }
.brand__sub { font-family: var(--font-num); font-weight: 500; font-size: 9.5px; color: var(--c-mute); letter-spacing: 0.3em; text-transform: uppercase; }
.site-nav { display: flex; align-items: center; gap: 24px; font-size: 13.5px; font-weight: 500; color: var(--c-text-2); }
.site-nav a:hover { color: var(--c-accent); }
.site-nav .is-cta {
  background: var(--grad-accent); color: #fff; font-weight: 700;
  padding: 10px 22px; border-radius: var(--r);
}
.site-nav .is-cta:hover { background: var(--c-accent-d); color: #fff; }

/* ──── buttons ──── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  font-weight: 700; font-size: 14.5px; line-height: 1;
  padding: 16px 30px; border-radius: var(--r); border: 2px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  cursor: pointer;
}
.btn .arrow { font-weight: 400; transition: transform 0.15s ease; }
.btn:hover .arrow { transform: translateX(4px); }
.btn--primary { background: var(--grad-accent); color: #fff; box-shadow: 0 8px 24px rgba(230, 0, 18, 0.22); }
.btn--primary:hover { background: var(--c-accent-d); }
.btn--ghost { background: transparent; color: var(--c-ink); border-color: var(--c-ink); }
.btn--ghost:hover { background: var(--c-ink); color: #fff; }
.btn--line { background: var(--c-line-green); color: #fff; box-shadow: 0 8px 24px rgba(6, 199, 85, 0.24); }
.btn--line:hover { filter: brightness(0.94); }
.btn--lg { padding: 19px 36px; font-size: 16px; }
.btn--block { width: 100%; }
.btn__icon { width: 22px; height: 22px; }

/* ──── hero（背景差し込み型） ──── */
.hero {
  position: relative; overflow: hidden;
  padding: 96px 0 72px;
  background:
    radial-gradient(720px 420px at 8% -10%, rgba(255, 90, 60, 0.06), transparent 70%),
    radial-gradient(900px 520px at 96% 110%, rgba(198, 154, 67, 0.08), transparent 70%),
    #ffffff;
  border-bottom: 1px solid var(--c-line);
}
.hero__bg { position: absolute; inset: 0; pointer-events: none; }
.hero__bg img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; max-width: none;
  object-fit: cover; object-position: right center;
}
.hero__overlay {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(90deg,
    rgba(255, 255, 255, 0.97) 0%, rgba(255, 255, 255, 0.94) 38%,
    rgba(255, 255, 255, 0.72) 55%,
    rgba(255, 255, 255, 0.28) 75%,
    rgba(255, 255, 255, 0.08) 100%);
}
.hero__grid { position: relative; }
.hero__main { max-width: 640px; }
.hero__kicker {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-num);
  font-size: 13px; font-weight: 600; letter-spacing: 0.24em;
  color: var(--c-gold-d); margin: 0 0 20px; text-transform: uppercase;
}
.hero__kicker::before { content: ""; width: 34px; height: 2px; background: var(--c-gold); }
.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(31px, 4.5vw, 48px);
  font-weight: 600; line-height: 1.4; letter-spacing: 0.04em;
  color: var(--c-ink); margin: 0 0 22px;
}
.hero__sub { font-size: 16px; color: var(--c-text-2); margin: 0 0 32px; max-width: 30em; }
.hero__sub strong { color: var(--c-ink); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 44px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(3, auto);
  justify-content: start; column-gap: 40px;
  border-top: 1px solid var(--c-line-2);
  max-width: 640px;
}
.hero-stats__item { padding: 14px 0 0; margin: 0; }
.hero-stats__label { font-size: 11.5px; font-weight: 700; letter-spacing: 0.1em; color: var(--c-mute); margin: 0 0 2px; }
.hero-stats__value {
  font-size: 16.5px; font-weight: 700; color: var(--c-ink); margin: 0; line-height: 1.5;
}

/* ──── sections ──── */
.section { position: relative; padding: 104px 0; overflow: hidden; }
.section--alt { background: linear-gradient(180deg, #f8f4ec 0%, #f3ede1 100%); }
.section--dark { background: var(--grad-dark); }
.section-visual {
  position: absolute; pointer-events: none; mix-blend-mode: screen;
  -webkit-mask-image: radial-gradient(closest-side, #000 55%, transparent 98%);
  mask-image: radial-gradient(closest-side, #000 55%, transparent 98%);
}
.section-visual--course {
  right: -60px; top: 50%; transform: translateY(-50%);
  width: clamp(280px, 30vw, 460px); opacity: 0.38;
}
.section-visual--apply {
  right: -80px; top: 50%; transform: translateY(-50%);
  width: clamp(300px, 32vw, 500px); opacity: 0.3;
}
.section--dark .section__title { color: #fff; }
.section--dark .section__lead { color: #b9bdc4; }

/* ゴースト番号（章番号） */
.section[data-no]::before {
  content: attr(data-no);
  position: absolute; top: 20px; right: -8px;
  font-family: var(--font-num); font-weight: 700;
  font-size: clamp(120px, 16vw, 220px); line-height: 0.8;
  background: linear-gradient(180deg, rgba(28, 25, 23, 0.055), rgba(28, 25, 23, 0.012));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  pointer-events: none; user-select: none;
}
.section--dark[data-no]::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.01));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section > .container { position: relative; }

.section__head { max-width: 760px; margin-bottom: 48px; }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section__eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-num);
  font-size: 12px; font-weight: 600; letter-spacing: 0.26em;
  color: var(--c-gold-d); text-transform: uppercase; margin: 0 0 12px;
}
.section__eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--c-gold); }
.section__head--center .section__eyebrow::before { display: none; }
.section__title {
  font-family: var(--font-serif);
  font-size: clamp(23px, 3.2vw, 34px); font-weight: 600; line-height: 1.45;
  color: var(--c-ink); margin: 0 0 14px; letter-spacing: 0.05em;
}
.section__lead { color: var(--c-text-2); margin: 0; font-size: 16px; }
.section__head::after {
  content: ""; display: block; margin-top: 26px; height: 2px; width: 56px;
  background: var(--c-gold);
}
.section--dark .section__head::after { background: var(--c-gold); }
.section__head--center::after {
  margin-left: auto; margin-right: auto;
}

/* ──── icon chips ──── */
.icon-chip {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--c-gold-d); margin-bottom: 16px;
  background: var(--c-bg-alt); border: 1px solid var(--c-line);
}
.icon-chip svg { width: 23px; height: 23px; }

/* ──── concept（黒セクション） ──── */
.concept-statement {
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.9vw, 29px); font-weight: 600; line-height: 1.9; letter-spacing: 0.06em;
  color: #fff; text-align: center; margin: 0 auto 60px; max-width: 26em;
}
.parts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.part-card { padding: 38px 34px; border-radius: var(--r); background: #fff; }
.part-card__tag {
  font-family: var(--font-num);
  font-size: 12px; font-weight: 600; letter-spacing: 0.22em;
  color: var(--c-gold-d); margin: 0 0 12px; text-transform: uppercase;
}
.part-card__title { font-family: var(--font-serif); letter-spacing: 0.04em; font-size: 21px; font-weight: 600; color: var(--c-ink); margin: 0 0 12px; }
.part-card__desc { margin: 0; color: var(--c-text-2); font-size: 15px; }
.part-card__desc strong { color: var(--c-ink); }

/* ──── features ──── */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r);
  padding: 30px 26px 26px; box-shadow: var(--shadow-sm);
}
.feature-card__no {
  font-family: var(--font-num); font-size: 11.5px; font-weight: 600;
  color: var(--c-mute); letter-spacing: 0.24em; margin: 0 0 8px; line-height: 1;
  text-transform: uppercase;
}
.feature-card__title { letter-spacing: 0.02em; font-size: 18px; font-weight: 700; color: var(--c-ink); margin: 0 0 10px; line-height: 1.5; }
.feature-card__desc { margin: 0; font-size: 14.5px; color: var(--c-text-2); }
.period-note {
  margin: 44px 0 0; padding: 20px 24px;
  background: var(--c-bg-alt); border-left: 4px solid var(--c-accent);
  font-size: 14.5px; color: var(--c-text-2);
}
.period-note strong { color: var(--c-ink); }

/* ──── curriculum ──── */
.curriculum-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.curriculum-col { background: #fff; border: 1px solid var(--c-line); padding: 32px 30px; border-radius: var(--r); box-shadow: var(--shadow-sm); }
.curriculum-col__head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  border-bottom: 1px solid var(--c-line-2); padding-bottom: 14px; margin-bottom: 8px;
}
.curriculum-col__title { letter-spacing: 0.02em; font-size: 17.5px; font-weight: 700; color: var(--c-ink); margin: 0; }
.curriculum-col__meta { font-family: var(--font-num); font-size: 12px; font-weight: 600; letter-spacing: 0.06em; color: var(--c-mute); text-transform: uppercase; }
.chapter-list { list-style: none; margin: 0; padding: 0; }
.chapter-list li {
  display: flex; gap: 16px; align-items: baseline;
  padding: 14px 2px; border-bottom: 1px solid var(--c-line);
}
.chapter-list li:last-child { border-bottom: 0; }
.chapter-list__ch {
  flex: 0 0 3.4em; font-size: 13px; font-weight: 700; color: var(--c-gold-d);
}
.chapter-list__body h4 { margin: 0; font-size: 15.5px; font-weight: 700; color: var(--c-ink); line-height: 1.55; }
.chapter-list__body p { margin: 2px 0 0; font-size: 13px; color: var(--c-mute); line-height: 1.7; }
.note { font-size: 12.5px; color: var(--c-mute); margin-top: 22px; }

/* ──── bonus ──── */
.bonus-accordion { display: grid; gap: 0; border-top: 1px solid var(--c-line-2); }
.bonus-item { border-bottom: 1px solid var(--c-line); }
.bonus-item summary {
  display: flex; align-items: center; gap: 20px;
  padding: 22px 8px; cursor: pointer; list-style: none;
}
.bonus-item summary:hover { background: var(--c-bg-alt); }
.bonus-item summary::-webkit-details-marker { display: none; }
.bonus-item__no {
  flex: 0 0 auto; font-family: var(--font-num); font-size: 22px; font-weight: 600;
  color: var(--c-gold-d); letter-spacing: 0.04em; line-height: 1; min-width: 2em;
}
.bonus-item__title { font-size: 16.5px; font-weight: 700; color: var(--c-ink); line-height: 1.55; }
.bonus-item__title small { font-weight: 500; color: var(--c-mute); font-size: 12.5px; margin-left: 6px; }
.bonus-item__icon {
  margin-left: auto; color: var(--c-mute); font-size: 20px; font-weight: 300;
  transition: transform 0.2s ease;
}
.bonus-item[open] .bonus-item__icon { transform: rotate(45deg); }
.bonus-item__body { padding: 4px 8px 24px 8px; max-width: 62em; color: var(--c-text-2); font-size: 14.5px; }
.bonus-item__body p { margin: 0 0 10px; }
.bonus-item__body p:last-child { margin-bottom: 0; }

.present-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 8px; }
.present-card {
  border-radius: var(--r); padding: 28px 26px; border: 1px solid var(--c-line);
  background: #fff; box-shadow: var(--shadow-sm);
}
.present-card__no {
  font-family: var(--font-num); font-size: 11.5px; font-weight: 600;
  color: var(--c-text-2); letter-spacing: 0.24em; margin: 0 0 8px; line-height: 1;
  text-transform: uppercase;
}
.present-card__title { font-size: 18px; font-weight: 700; color: var(--c-ink); margin: 0; line-height: 1.65; }

.keito-strip {
  margin-top: 52px; padding: 34px 36px;
  background: var(--c-ink); color: #fff; border-radius: var(--r);
  border-left: 4px solid var(--c-gold);
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px 40px;
}
.keito-strip__label {
  flex: 0 0 auto; font-size: 12px; font-weight: 700; letter-spacing: 0.14em;
  color: var(--c-ink); background: #fff; padding: 6px 14px;
}
.keito-strip__body h3 { font-family: var(--font-serif); letter-spacing: 0.04em; margin: 0 0 6px; font-size: 18.5px; font-weight: 600; color: #fff; }
.keito-strip__body p { margin: 0; font-size: 14px; color: #b9bdc4; }

/* ──── pricing ──── */
.price-card {
  max-width: 680px; margin: 0 auto;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r);
  box-shadow: var(--shadow-md); overflow: hidden;
}
.price-card__head { padding: 32px 38px 0; text-align: center; }
.price-card__tag {
  display: inline-block; font-family: var(--font-num);
  font-size: 12px; font-weight: 600; letter-spacing: 0.26em;
  color: var(--c-gold-d); margin-bottom: 8px; text-transform: uppercase;
}
.price-card__title { font-family: var(--font-serif); letter-spacing: 0.05em; font-size: 23px; font-weight: 600; color: var(--c-ink); margin: 0; }
.price-card__price { text-align: center; padding: 20px 38px 4px; }
.price-card__old {
  display: block; font-family: var(--font-num); font-weight: 500;
  font-size: 17px; color: var(--c-mute);
  text-decoration: line-through; text-decoration-thickness: 2px;
  margin-bottom: 6px; letter-spacing: 0.03em;
}
.price-card__num {
  font-family: var(--font-num); font-weight: 600;
  font-size: clamp(46px, 6.2vw, 66px); color: var(--c-accent); line-height: 1;
  letter-spacing: 0.01em;
}
.price-card__num small { font-family: var(--font-jp); font-size: 14px; font-weight: 700; color: var(--c-text-2); margin-left: 8px; }
.price-card__deadline {
  text-align: center; font-size: 14.5px; font-weight: 700; color: var(--c-accent);
  margin: 14px 0 0;
}
.price-card__features {
  list-style: none; margin: 24px 0 0; padding: 24px 38px 28px;
  border-top: 1px solid var(--c-line); display: grid; gap: 10px;
  font-size: 14.5px; color: var(--c-text-2);
}
.price-card__features li { display: flex; gap: 12px; align-items: baseline; }
.price-card__features li::before { content: "—"; color: var(--c-gold); flex: 0 0 auto; }
.price-card__features li > span { flex: 1; min-width: 0; }
.price-card__features strong { color: var(--c-ink); }
.payment-row {
  border-top: 1px solid var(--c-line); background: var(--c-bg-alt);
  padding: 20px 38px; font-size: 14px; color: var(--c-text-2);
}
.payment-row strong { color: var(--c-ink); }
.pricing-cta { text-align: center; margin-top: 44px; }

/* ──── packages ──── */
.package-head { text-align: center; margin: 64px 0 28px; }
.package-head__title { font-family: var(--font-serif); letter-spacing: 0.05em; font-size: 21px; font-weight: 600; color: var(--c-ink); margin: 0 0 6px; }
.package-head__lead { font-size: 14px; color: var(--c-text-2); margin: 0; }
.package-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.package-card {
  position: relative;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r);
  padding: 30px 26px 26px; box-shadow: var(--shadow-sm); text-align: center;
}
.package-card--best {
  border-color: var(--c-gold); box-shadow: var(--shadow-md);
}
.package-card__badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--c-gold-d); color: #fff; font-size: 12px; font-weight: 700;
  letter-spacing: 0.1em; padding: 5px 16px; white-space: nowrap; border-radius: 3px;
}
.package-card__tag {
  font-family: var(--font-num); font-size: 11px; font-weight: 600;
  letter-spacing: 0.28em; color: var(--c-mute); margin: 0 0 12px; text-transform: uppercase;
}
.package-card__title { font-size: 15px; font-weight: 700; color: var(--c-ink); margin: 0 0 16px; line-height: 1.75; }
.package-card__title .plus { color: var(--c-gold-d); margin: 0 5px; font-weight: 700; }
.package-card__price { margin: 0 0 10px; line-height: 1.2; }
.package-card__price .old {
  display: block; font-family: var(--font-num); font-weight: 500; font-size: 14px;
  color: var(--c-mute); text-decoration: line-through; text-decoration-thickness: 2px;
  margin-bottom: 4px;
}
.package-card__price b {
  font-family: var(--font-num); font-size: 32px; font-weight: 600; color: var(--c-accent);
  letter-spacing: 0.01em;
}
.package-card__price small { font-size: 12px; font-weight: 700; color: var(--c-text-2); margin-left: 4px; }
.package-card__off {
  display: inline-block; margin: 0;
  font-family: var(--font-num); font-size: 12px; font-weight: 600; letter-spacing: 0.08em;
  color: var(--c-gold-d); border: 1px solid var(--c-line-2);
  padding: 4px 14px; border-radius: 3px;
}

/* ──── options ──── */
.option-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.option-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r);
  padding: 34px 32px; box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: 14px;
}
.option-card__top { display: flex; align-items: center; gap: 14px; }
.option-card__top .icon-chip { margin-bottom: 0; width: 42px; height: 42px; border-radius: 11px; }
.option-card__top .icon-chip svg { width: 20px; height: 20px; }
.option-card__tag {
  font-family: var(--font-num); font-size: 11.5px; font-weight: 600;
  letter-spacing: 0.28em; color: var(--c-gold-d); margin: 0; text-transform: uppercase;
}
.option-card__title { font-family: var(--font-serif); letter-spacing: 0.04em; font-size: 21px; font-weight: 600; color: var(--c-ink); margin: 0; }
.option-card__price { font-size: 15px; color: var(--c-text-2); margin: 0; }
.option-card__price b {
  font-family: var(--font-num); font-size: 26px; font-weight: 600; color: var(--c-ink);
  letter-spacing: 0.01em;
}
.option-card__price .old {
  font-family: var(--font-num); font-weight: 500;
  text-decoration: line-through; text-decoration-thickness: 2px;
  color: var(--c-mute); margin-right: 10px;
}
.option-card__desc { margin: 0; font-size: 14.5px; color: var(--c-text-2); }
.option-card__features { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 14px; color: var(--c-text-2); }
.option-card__features li { display: flex; gap: 12px; align-items: baseline; }
.option-card__features li::before { content: "—"; color: var(--c-gold); flex: 0 0 auto; }
.option-card__features li > span { flex: 1; min-width: 0; }
.option-card__features strong { color: var(--c-ink); }
.option-card details { border-top: 1px solid var(--c-line); padding-top: 16px; margin-top: 6px; }
.option-card summary {
  cursor: pointer; list-style: none; font-size: 13.5px; font-weight: 700; color: var(--c-ink);
  display: flex; align-items: center; gap: 8px;
}
.option-card summary::-webkit-details-marker { display: none; }
.option-card summary::after { content: "＋"; color: var(--c-mute); margin-left: auto; font-weight: 300; }
.option-card details[open] summary::after { content: "−"; }
.mini-syllabus { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 8px; font-size: 13px; color: var(--c-text-2); }
.mini-syllabus b { color: var(--c-gold-d); font-weight: 700; font-size: 12px; margin-right: 8px; }

/* ──── LINE bonus ──── */
.line-bonus-list {
  list-style: none; margin: 0; padding: 0;
  border-top: 1px solid var(--c-line-2);
}
.line-bonus-list li {
  display: flex; align-items: center; gap: 24px;
  padding: 24px 8px; border-bottom: 1px solid var(--c-line);
}
.line-bonus-list__no {
  font-family: var(--font-num); font-size: 30px; font-weight: 600;
  color: var(--c-gold-d);
  flex: 0 0 1.8em; line-height: 1;
}
.line-bonus-list__tag {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  color: var(--c-text-2); border: 1px solid var(--c-line-2);
  padding: 2px 10px; margin: 0 0 4px;
}
.line-bonus-list__body h3 { letter-spacing: 0.02em; margin: 0; font-size: 16.5px; font-weight: 700; color: var(--c-ink); }

/* ──── FAQ ──── */
.faq { display: grid; gap: 0; border-top: 1px solid var(--c-line-2); }
.faq__item { border-bottom: 1px solid var(--c-line); }
.faq__item summary {
  display: flex; align-items: center; gap: 16px;
  padding: 20px 8px; cursor: pointer; list-style: none;
  font-weight: 700; color: var(--c-ink); font-size: 15.5px;
}
.faq__item summary:hover { background: var(--c-bg-alt); }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__q::before { content: "Q."; font-family: var(--font-num); font-weight: 700; color: var(--c-gold-d); margin-right: 12px; }
.faq__icon { margin-left: auto; color: var(--c-mute); font-weight: 300; font-size: 20px; transition: transform 0.2s ease; }
.faq__item[open] .faq__icon { transform: rotate(45deg); }
.faq__a { padding: 2px 8px 22px; color: var(--c-text-2); font-size: 14.5px; max-width: 60em; }
.faq__a p { margin: 0; }

/* ──── apply ──── */
.section--apply { background: var(--grad-dark); }
.section--apply .section__title { color: #fff; }
.section--apply .section__title em { color: #0bd868; }
.section--apply .section__lead { color: #b9bdc4; }
.section--apply .section__lead strong { color: #fff; }
.apply-line { max-width: 580px; margin: 0 auto; }
.apply-line__deadline { text-align: center; font-size: 15px; font-weight: 700; color: #fff; margin: 0 0 18px; }
.apply-line__deadline em { color: #ff5560; }
.apply-line__bonus {
  list-style: none; margin: 0 0 28px; padding: 24px 28px;
  background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--r);
  display: grid; gap: 9px;
  font-size: 14px; color: #d9d4ce;
}
.apply-line__bonus li { display: flex; gap: 12px; align-items: baseline; }
.apply-line__bonus li::before { content: "✓"; color: var(--c-line-green); flex: 0 0 auto; font-weight: 700; }
.apply-line__note { text-align: center; font-size: 12.5px; color: #8b9099; margin-top: 14px; }

/* ──── footer ──── */
.site-footer { border-top: 1px solid var(--c-line); padding: 48px 0 56px; background: var(--c-bg); }
.site-footer__inner { display: grid; gap: 22px; }
.site-footer__nav { display: flex; flex-wrap: wrap; gap: 10px 28px; font-size: 13px; color: var(--c-text-2); }
.site-footer__nav a:hover { color: var(--c-ink); }
.site-footer__copy { font-size: 12px; color: var(--c-mute); margin: 0; }

/* ──── responsive ──── */
@media (max-width: 960px) {
  .section-visual--course, .section-visual--apply { opacity: 0.25; right: -120px; }
  .hero__bg img { object-position: 68% center; }
  .hero__overlay {
    background: linear-gradient(180deg,
      rgba(255, 255, 255, 0.94) 0%,
      rgba(255, 255, 255, 0.88) 55%,
      rgba(255, 255, 255, 0.82) 100%);
  }
  .feature-grid, .present-grid, .package-grid { grid-template-columns: 1fr; }
  .parts-grid, .curriculum-grid, .option-grid { grid-template-columns: 1fr; }
  .package-card--best { order: -1; }
}
@media (max-width: 720px) {
  .site-nav { display: none; }
  .section { padding: 72px 0; }
  .hero { padding: 52px 0 44px; }
  .hero-stats { grid-template-columns: 1fr; border-top: 0; row-gap: 0; }
  .hero-stats__item { border-top: 1px solid var(--c-line-2); padding-left: 0; }
  .keito-strip { flex-direction: column; align-items: flex-start; }
  .section[data-no]::before { font-size: 110px; top: 10px; }
  .bonus-item summary { gap: 14px; }
  .line-bonus-list li { gap: 16px; }
}