:root {
  --ivory: #fbf8f3;
  --greige: #eee8df;
  --greige-deep: #ddd4c7;
  --ink: #4f453e;
  --ink-sub: #8a7e74;
  --gold: #b39364;
  --gold-light: #d8c5a3;
  --red: #b5473b;
  --blue: #6b8cae;
  --serif: 'Shippori Mincho', 'Hiragino Mincho ProN', serif;
  --en: 'Cormorant Garamond', serif;
  --sans: 'Noto Sans JP', sans-serif;
  --w: 640px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--ivory); color: var(--ink);
  font-family: var(--serif); line-height: 2; letter-spacing: .04em;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: lining-nums;
}
s { text-decoration-color: var(--red); text-decoration-thickness: 2px; }
strong { color: var(--red); font-weight: 700; }
em { font-style: normal; color: var(--red); font-weight: 700; }
.center { text-align: center; }
.note { font-family: var(--sans); font-size: 11px; color: var(--ink-sub); letter-spacing: 0; line-height: 1.8; }

/* ---------- 表示切り替え ---------- */
.ended-only { display: none; }
.is-ended .sale-only { display: none !important; }
.is-ended .ended-only { display: block; }

/* ---------- 共通セクション ---------- */
.sec { padding: 88px 24px; }
.sec > * { max-width: var(--w); margin-left: auto; margin-right: auto; }
.sec--greige { background: var(--greige); }
.sec--marble {
  background:
    radial-gradient(ellipse 60% 40% at 20% 10%, rgba(221, 212, 199, .5), transparent 70%),
    radial-gradient(ellipse 50% 30% at 85% 60%, rgba(221, 212, 199, .45), transparent 70%),
    linear-gradient(160deg, #fff 0%, #f6f2ec 100%);
}
.sec-title {
  text-align: center; font-weight: 600; font-size: 24px; line-height: 1.7;
  margin: 0 auto 48px; letter-spacing: .1em;
}
.sec-title .en {
  display: block; font-family: var(--en); font-style: italic; font-weight: 500;
  color: var(--gold); font-size: 20px; letter-spacing: .12em; margin-bottom: 4px;
}
.sec-title::after {
  content: ''; display: block; width: 56px; height: 1px; margin: 18px auto 0;
  background: var(--gold);
}
.ornament {
  width: 160px; height: 14px; margin: 18px auto;
  background:
    linear-gradient(var(--gold), var(--gold)) center / 100% 1px no-repeat,
    radial-gradient(circle, var(--gold) 2.5px, transparent 3px) center / 14px 14px no-repeat;
}

/* ---------- ボタン ---------- */
.btn {
  display: block; width: 100%; max-width: 420px; margin: 28px auto 0;
  text-align: center; text-decoration: none; font-family: var(--serif);
  font-weight: 700; font-size: 20px; letter-spacing: .16em; color: #fff;
  padding: 20px 24px; border-radius: 999px;
  background: linear-gradient(135deg, #c35a4b 0%, var(--red) 55%, #9a3a31 100%);
  box-shadow: 0 10px 24px rgba(181, 71, 59, .28), inset 0 1px 0 rgba(255, 255, 255, .25);
  position: relative; overflow: hidden; transition: transform .15s;
}
.btn::after {
  content: ''; position: absolute; top: 0; left: -60%; width: 40%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .35), transparent);
  animation: shine 3.2s ease-in-out infinite;
}
.btn:active { transform: scale(.98); }
.btn--big { font-size: 22px; padding: 22px 24px; }
.btn--sm { margin: 0; width: auto; flex: 0 0 auto; font-size: 16px; padding: 12px 22px; letter-spacing: .1em; }
@keyframes shine { 0%, 60% { left: -60%; } 100% { left: 130%; } }

/* ---------- ファーストビュー ---------- */
.fv {
  text-align: center; padding: 48px 24px 32px; position: relative; overflow: hidden;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, #fff 0%, transparent 70%),
    radial-gradient(ellipse 40% 35% at 10% 85%, rgba(216, 197, 163, .35), transparent 70%),
    radial-gradient(ellipse 45% 35% at 92% 30%, rgba(221, 212, 199, .6), transparent 70%),
    var(--ivory);
}
.fv::before, .fv::after { content: ''; position: absolute; border: 1px solid var(--gold-light); pointer-events: none; }
.fv::before { inset: 12px 12px 0; border-bottom: 0; }
.fv::after { inset: 17px 17px 0; border-bottom: 0; border-color: rgba(216, 197, 163, .5); }
.fv__inner { position: relative; z-index: 1; }
.fv__lead { font-size: 13px; margin: 0; color: var(--ink-sub); letter-spacing: .08em; }
.fv__catch { font-size: 18px; font-weight: 600; margin: 6px 0 0; letter-spacing: .1em; }
.fv__catch span { color: var(--red); font-size: 1.15em; }
.fv__title {
  margin: 0; font-weight: 800; font-size: clamp(40px, 12vw, 72px); line-height: 1.3; letter-spacing: .06em; white-space: nowrap;
  background: linear-gradient(180deg, #6a5c50, #3f362f); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.fv__mark { font-family: var(--en); font-style: italic; color: var(--gold); font-size: 18px; letter-spacing: .3em; margin: 0; }
.fv .ornament { margin: 10px auto; }
.fv__sub { margin: 0; font-size: 14px; line-height: 1.8; letter-spacing: .12em; }
.fv__author { margin: 14px auto 0; width: fit-content; padding-top: 8px; border-top: 1px solid var(--gold-light); }
.fv__author p { margin: 0; font-size: 12px; color: var(--ink-sub); letter-spacing: .08em; line-height: 1.7; }
.fv__author .fv__name { font-size: 19px; color: var(--ink); font-weight: 700; letter-spacing: .3em; }
.fv__note { font-size: 10px; }
.fv__notice { margin: 6px 0 0; font-family: var(--sans); font-size: 10px; color: var(--ink-sub); letter-spacing: 0; }

/* ---------- 価格 ---------- */
.offer-top { text-align: center; padding: 22px 24px 56px; background: #fff; border-top: 1px solid var(--greige-deep); border-bottom: 1px solid var(--greige-deep); }
.offer-top__label { margin: 0 0 8px; color: var(--red); font-weight: 700; font-size: 15px; letter-spacing: .08em; }
.price { margin: 0 auto; }
.price p { margin: 0; }
.price__regular { font-size: 20px; color: var(--ink-sub); font-weight: 600; }
.price__regular s { font-size: 1.5em; margin-left: 6px; font-family: var(--en); font-weight: 600; color: var(--ink-sub); }
.price__arrow { color: var(--red); font-size: 18px; line-height: 1.4; }
.price__now {
  color: var(--red); font-family: var(--en); font-weight: 600; line-height: 1;
  font-size: clamp(72px, 22vw, 110px); letter-spacing: 0;
  display: flex; align-items: baseline; justify-content: center; flex-wrap: wrap; gap: 0 2px;
}
.price__tag {
  font-family: var(--serif); font-size: 14px; font-weight: 700; color: #fff; background: var(--red);
  padding: 4px 10px; letter-spacing: .1em; margin-right: 8px; align-self: center; line-height: 1.4;
  writing-mode: vertical-rl; border-radius: 2px;
}
.price__now .yen { font-size: .45em; }
.price__now small { font-family: var(--serif); font-size: 15px; color: var(--ink); margin-left: 6px; }
.price__off {
  display: inline-block; margin-top: 14px !important; padding: 6px 20px;
  border: 1px solid var(--red); color: var(--red); font-weight: 700; font-size: 15px; letter-spacing: .08em;
}
.is-ended .price__now { font-size: clamp(60px, 18vw, 88px); }
.price--big .price__now { flex-wrap: nowrap; font-size: clamp(60px, 17vw, 100px); }
.price--big .price__tag { font-size: 12px; padding: 4px 8px; margin-right: 6px; }

.timer { margin: 32px auto 0; max-width: 420px; }
.timer__label { margin: 0 0 10px; font-size: 14px; letter-spacing: .14em; color: var(--ink); }
.timer__cells { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.timer__cells span {
  background: var(--ink); color: #fff; border-radius: 6px; padding: 10px 0 6px;
  display: flex; flex-direction: column; align-items: center; line-height: 1;
}
.timer__cells b { font-family: var(--serif); font-size: 32px; font-weight: 600; font-variant-numeric: tabular-nums; }
.timer__cells small { font-family: var(--sans); font-size: 11px; margin-top: 6px; color: var(--gold-light); letter-spacing: .1em; }
.ended-note { margin: 24px 0 0; font-size: 14px; color: var(--ink-sub); }

/* ---------- 悩み ---------- */
.worries { list-style: none; padding: 0; margin: 0 auto; }
.worries li {
  position: relative; padding: 14px 0 14px 34px; font-size: 16px; line-height: 1.7;
  border-bottom: 1px solid var(--greige-deep);
}
.worries li::before {
  content: ''; position: absolute; left: 4px; top: 22px; width: 14px; height: 7px;
  border-left: 1.5px solid var(--gold); border-bottom: 1.5px solid var(--gold); transform: rotate(-45deg);
}
.answer { text-align: center; margin: 56px auto 0; font-size: 19px; font-weight: 600; line-height: 2.1; }
.answer strong { font-size: 1.25em; }

/* ---------- 特長 ---------- */
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.feature {
  background: #fff; text-align: center; padding: 26px 10px 22px; position: relative;
  outline: 1px solid var(--gold-light); outline-offset: -6px;
}
.feature__no { font-family: var(--en); font-style: italic; color: var(--gold); font-size: 26px; line-height: 1; }
.feature p { margin: 10px 0 0; font-size: 13px; line-height: 1.8; font-weight: 600; letter-spacing: 0; word-break: keep-all; overflow-wrap: anywhere; }

/* ---------- ストーリー ---------- */
.letter {
  background: #fff; padding: 56px 16px 40px; text-align: center;
  outline: 10px solid var(--greige); outline-offset: 0; box-shadow: 0 0 0 11px var(--greige-deep);
  margin: 12px auto;
}
.letter p { margin: 0 0 28px; font-size: 14.5px; line-height: 2.2; letter-spacing: .02em; word-break: keep-all; overflow-wrap: anywhere; }
.letter__hello { font-size: 20px !important; font-weight: 700; }
.letter .note { margin: 0; }

/* ---------- ポイント ---------- */
.point { padding: 32px 0; border-top: 1px solid var(--greige-deep); }
.point:last-child { border-bottom: 1px solid var(--greige-deep); }
.point__no { margin: 0; font-family: var(--en); font-style: italic; color: var(--gold); font-size: 20px; text-align: center; }
.point__no b { font-family: var(--serif); font-size: 40px; font-weight: 600; margin-left: 6px; font-style: normal; }
.point h3 { text-align: center; margin: 0 0 16px; font-size: 21px; letter-spacing: .1em; }
.point p:last-child { margin: 0; font-size: 15px; font-family: var(--sans); line-height: 2; letter-spacing: .02em; }

/* ---------- 講座コンテンツ ---------- */
.chapter { background: #fff; padding: 32px 22px 24px; margin-bottom: 18px; text-align: center; }
.chapter__no span { color: var(--gold-light); }
.chapter__no {
  display: inline-block; margin: 0; padding: 2px 18px; background: var(--ink); color: #fff;
  font-size: 13px; letter-spacing: .2em;
}
.chapter h3 { margin: 14px 0 18px; font-size: 20px; line-height: 1.7; letter-spacing: .08em; }
.chapter ul { list-style: none; padding: 0; margin: 0; text-align: left; }
.chapter li {
  font-family: var(--sans); font-size: 14px; line-height: 1.8; letter-spacing: .02em;
  padding: 10px 0 10px 22px; border-top: 1px dashed var(--greige-deep); position: relative;
}
.chapter li::before { content: '◆'; position: absolute; left: 0; top: 11px; color: var(--gold); font-size: 10px; }

/* ---------- 特典 ---------- */
.bonus {
  text-align: center; padding: 36px 22px 30px; margin-bottom: 22px; position: relative;
  border: 1px solid var(--gold-light); background: #fff;
}
.bonus__no {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%); margin: 0;
  background: var(--ivory); padding: 0 16px; font-family: var(--en); font-style: italic;
  color: var(--gold); font-size: 20px; line-height: 28px; white-space: nowrap;
}
.bonus h3 { margin: 0 0 14px; font-size: 21px; line-height: 1.6; }
.bonus p { font-family: var(--sans); font-size: 14px; text-align: left; margin: 0; line-height: 1.9; letter-spacing: .02em; }
.bonus .bonus__meta { margin-top: 14px; font-size: 12px; color: var(--ink-sub); background: var(--ivory); padding: 8px 12px; }

/* ---------- 価格（メイン） ---------- */
.offer {
  background: #fff; text-align: center; padding: 44px 20px 36px;
  border: 1px solid var(--gold); outline: 1px solid var(--gold-light); outline-offset: 6px;
  box-shadow: 0 20px 50px rgba(79, 69, 62, .08);
}
.offer__badge { display: inline-block; margin: 0 0 18px; background: var(--red); color: #fff; padding: 4px 18px; font-size: 14px; font-weight: 700; letter-spacing: .1em; }
.offer__name { margin: 0; font-size: 30px; font-weight: 800; letter-spacing: .2em; }
.offer__desc { margin: 0 0 22px; font-size: 13px; color: var(--ink-sub); }
.offer__pay { margin: 16px 0 0; font-family: var(--sans); font-size: 12px; color: var(--ink-sub); letter-spacing: 0; }

/* ---------- 流れ ---------- */
.flow { list-style: none; padding: 0; margin: 0 auto; }
.flow li { background: var(--greige); padding: 22px 22px 20px; margin-bottom: 30px; position: relative; }
.flow li:not(:last-child)::after {
  content: ''; position: absolute; left: 50%; bottom: -22px; transform: translateX(-50%);
  border: 10px solid transparent; border-top-color: var(--gold-light);
}
.flow__step { margin: 0 0 6px; font-family: var(--en); font-weight: 600; color: var(--gold); font-size: 20px; letter-spacing: .14em; text-align: center; }
.flow li p:last-child { margin: 0; font-family: var(--sans); font-size: 14px; line-height: 1.9; letter-spacing: .02em; }

/* ---------- Q&A ---------- */
.faq details { background: #fff; margin-bottom: 10px; }
.faq summary {
  cursor: pointer; list-style: none; position: relative; padding: 18px 46px 18px 52px;
  font-weight: 600; font-size: 15px; line-height: 1.7;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: 'Q'; position: absolute; left: 18px; top: 12px; font-family: var(--en); font-size: 26px; color: var(--gold); }
.faq summary::after { content: '+'; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--gold); }
.faq details[open] summary::after { content: '−'; }
.faq details p {
  margin: 0; padding: 0 20px 20px 52px; position: relative;
  font-family: var(--sans); font-size: 14px; line-height: 1.9; letter-spacing: .02em;
}
.faq details p::before { content: 'A'; position: absolute; left: 18px; top: -8px; font-family: var(--en); font-size: 26px; color: var(--red); }

/* ---------- プロフィール ---------- */
.profile { text-align: center; }
.profile__name { margin: 0; font-size: 28px; font-weight: 800; letter-spacing: .4em; }
.profile__role { margin: 4px 0 24px; font-size: 13px; color: var(--ink-sub); line-height: 1.8; }
.profile__history {
  display: grid; grid-template-columns: auto 1fr; gap: 0; text-align: left; margin: 0 auto 14px;
  font-family: var(--sans); font-size: 14px; letter-spacing: .02em; max-width: 420px;
}
.profile__history dt, .profile__history dd { margin: 0; padding: 10px 0; border-bottom: 1px solid var(--greige-deep); }
.profile__history dt { color: var(--gold); font-weight: 700; padding-right: 18px; white-space: nowrap; }

/* ---------- 概略 ---------- */
.outline { width: 100%; border-collapse: collapse; background: #fff; font-family: var(--sans); font-size: 13px; letter-spacing: .02em; }
.outline th, .outline td { padding: 14px 14px; border-bottom: 1px solid var(--greige); text-align: left; vertical-align: top; line-height: 1.8; }
.outline th { width: 28%; background: #f7f3ee; font-weight: 700; white-space: nowrap; }
.outline s { color: var(--ink-sub); }
.final { text-align: center; margin-top: 64px; }
.final__lead { margin: 0; font-size: 18px; font-weight: 700; letter-spacing: .06em; }
.final__timer { margin: 14px 0 0; font-size: 14px; color: var(--red); font-weight: 700; font-variant-numeric: tabular-nums; }

/* ---------- フッター ---------- */
.footer { text-align: center; padding: 36px 20px 120px; background: var(--ink); color: var(--greige); font-family: var(--sans); font-size: 12px; }
.footer a { color: var(--greige); }
.footer__copy { margin: 8px 0 0; color: var(--ink-sub); }

/* ---------- 固定バー ---------- */
.sticky {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: flex; align-items: center; justify-content: center; gap: 14px;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(251, 248, 243, .97); border-top: 1px solid var(--gold-light);
  transform: translateY(110%); transition: transform .3s;
}
.sticky.is-show { transform: translateY(0); }
.sticky__info p { margin: 0; line-height: 1.4; font-size: 14px; }
.sticky__info b { color: var(--red); font-family: var(--en); font-size: 22px; }
.sticky__info s { color: var(--ink-sub); font-family: var(--en); font-size: 16px; }
.sticky__time { font-family: var(--sans); font-size: 12px !important; color: var(--red); font-variant-numeric: tabular-nums; }

/* ---------- ふわっと表示 ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-in { opacity: 1; transform: none; }

@media (min-width: 720px) {
  .features { grid-template-columns: repeat(3, 1fr); }
  .sec-title { font-size: 28px; }
  .letter { padding: 64px 48px 48px; }
}
@media (max-width: 360px) {
  .timer__cells b { font-size: 30px; }
  .btn--big { font-size: 19px; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn::after { animation: none; }
  html { scroll-behavior: auto; }
}