/* 107 RED LINE — K03 全画面を1枚ずつ送る（カッコイイ系）。7枚・scroll-snap。GSAP は使わない。
   形：スマホのまま横に延長（PCでも1列。写真と色の帯は端まで、文字の列だけ最大680px）
   色と書体は共通の13変数だけ。面ごとの色は .s-* が同じ名前の変数を上書きする */
:root {
  --c-bg: #0c0c0d;
  --c-bg-alt: #17171a;
  --c-text: #f2eded;
  --c-sub: #b9b3b5;
  --c-line: #5a5a62;
  --c-accent: #c8102e;
  --c-accent-text: #ff7a93;
  --c-on-accent: #ffffff;
  --c-2: #e0213f;
  --c-3: #ff7a93;
  --font-ja: "Murecho", sans-serif;
  --font-head: "Murecho", sans-serif;
  --font-en: "Teko", "Murecho", sans-serif;
  --header-h: 60px;
  --ease: cubic-bezier(.7, 0, .2, 1);
}
.s-dark  { --c-bg: #0c0c0d; --c-bg-alt: #17171a; }
.s-alt   { --c-bg: #17171a; --c-bg-alt: #0c0c0d; }
.s-red   { --c-bg: #c8102e; --c-bg-alt: #a30d26; --c-text: #ffffff; --c-sub: #ffe3e8; --c-line: color-mix(in srgb, #ffffff 55%, transparent); --c-accent: #0c0c0d; --c-accent-text: #ffffff; --c-on-accent: #ffffff; --c-2: #ffffff; --c-3: #0c0c0d; }
.header, .dots { --c-bg: #0c0c0d; --c-text: #f2eded; --c-line: #5a5a62; --c-accent: #c8102e; --c-on-accent: #ffffff; --c-2: #e0213f; }
.s-light { --c-bg: #f4f1f1; --c-bg-alt: #ffffff; --c-text: #374151; --c-sub: #4b5563; --c-line: #9ca3af; --c-accent: #c8102e; --c-accent-text: #b0122d; --c-on-accent: #ffffff; --c-2: #e0213f; --c-3: #0c0c0d; }

*, *::before, *::after { box-sizing: border-box; }
html { scroll-snap-type: y mandatory; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--c-bg); color: var(--c-text); font-family: var(--font-ja); font-size: 16px; line-height: 1.8; overflow-x: hidden; }
figure { margin: 0; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, p, dd, li, summary { word-break: auto-phrase; overflow-wrap: anywhere; }
h1, h2, h3, p, dl, dd, ol, ul { margin: 0; }
ul, ol { padding: 0; list-style: none; }

/* ===== ヘッダー（固定・いつも黒） ===== */
.header { position: fixed; inset: 0 0 auto 0; z-index: 30; height: var(--header-h); background: var(--c-bg); border-bottom: 1px solid var(--c-line); color: var(--c-text); }
.header__inner { height: 100%; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; position: relative; max-width: 1200px; margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 10px; min-height: 44px; text-decoration: none; white-space: nowrap; flex: none; }
.logo__mark { width: 26px; height: 6px; background: var(--c-2); }
.logo__txt { font-family: var(--font-en); font-weight: 600; font-size: 28px; letter-spacing: .12em; line-height: 1; }
.header__btn { margin-left: auto; min-height: 44px; padding: 0 16px; font-size: 15px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 24px; background: var(--c-accent); color: var(--c-on-accent); font-family: var(--font-ja); font-weight: 800; font-size: 16px; text-decoration: none; white-space: nowrap; flex: none; border: 2px solid var(--c-accent); border-radius: 0; }
.btn--lg { min-height: 56px; padding: 0 30px; }

.spmenu { flex: none; }
.spmenu summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; }
.spmenu summary::-webkit-details-marker { display: none; }
.spmenu__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.spmenu__bar, .spmenu__bar::before, .spmenu__bar::after { display: block; width: 24px; height: 3px; background: currentColor; position: relative; }
.spmenu__bar::before, .spmenu__bar::after { content: ""; position: absolute; left: 0; }
.spmenu__bar::before { top: -8px; } .spmenu__bar::after { top: 8px; }
.spmenu[open] .spmenu__bar { background: transparent; }
.spmenu[open] .spmenu__bar::before { top: 0; transform: rotate(45deg); }
.spmenu[open] .spmenu__bar::after { top: 0; transform: rotate(-45deg); }
.spmenu__nav { position: absolute; right: 0; top: 100%; width: min(100%, 380px); background: var(--c-bg); border: 1px solid var(--c-line); padding: 8px 24px 20px; display: flex; flex-direction: column; }
.spmenu__nav a { display: flex; align-items: center; min-height: 52px; text-decoration: none; font-weight: 700; border-bottom: 1px solid var(--c-line); }

/* 右端の位置ドット（PCだけ） */
.dots { display: none; }

/* ===== 1枚（スマホのまま横に延長：背景は端まで、文字の列は680px） ===== */
.slide { position: relative; min-height: 100svh; scroll-snap-align: start; background: var(--c-bg); color: var(--c-text); padding: calc(var(--header-h) + 20px) 20px 28px; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.col { width: 100%; max-width: 680px; margin: 0 auto; position: relative; z-index: 2; }
.col > * + * { margin-top: 16px; }
.no { font-family: var(--font-en); font-weight: 600; font-size: 20px; letter-spacing: .14em; color: var(--c-accent-text); line-height: 1; }
.en { font-family: var(--font-en); font-weight: 600; font-size: 20px; letter-spacing: .18em; color: var(--c-accent-text); line-height: 1.2; }
.h2 { font-family: var(--font-head); font-weight: 900; font-size: clamp(34px, 9.4vw, 52px); line-height: 1.2; letter-spacing: 0; }
.note { color: var(--c-sub); font-size: 15px; }
.lead { color: var(--c-text); }

/* 1 メインビジュアル */
.s-hero { padding-bottom: 36px; justify-content: flex-end; }
.hero__photo { position: absolute; inset: 0; overflow: hidden; z-index: 0; background: var(--c-bg); }
.hero__photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, color-mix(in srgb, var(--c-bg) 25%, transparent) 0%, color-mix(in srgb, var(--c-bg) 55%, transparent) 45%, var(--c-bg) 100%); }
.hero__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 50%; }
.hero__title { font-family: var(--font-head); font-weight: 900; font-size: clamp(56px, 17vw, 112px); line-height: 1.05; letter-spacing: -.01em; }
.hero__col .no { color: var(--c-sub); }

/* 2 NO SHAVE */
.particles { position: relative; height: clamp(150px, 26svh, 260px); color: var(--c-2); }
.particles canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: none; }
.particles.is-on canvas { display: block; }
.particles__fallback { font-size: clamp(70px, 24vw, 150px); font-weight: 600; letter-spacing: .04em; color: var(--c-2); line-height: 1; display: flex; align-items: center; height: 100%; margin: 0; }
.particles.is-on .particles__fallback { display: none; }

/* 3 悩み / 5 流れ：上に端までの写真の帯 */
.s-bandtop { justify-content: flex-start; padding-top: 0; }
.band { position: relative; margin: 0 -20px; height: calc(var(--header-h) + 18svh); flex: none; overflow: hidden; margin-bottom: 24px; }
.band img { width: 100%; height: 100%; object-fit: cover; }
.band::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, var(--c-bg) 100%); }
.s-red .band img { filter: grayscale(1) contrast(1.05); }
.band--jaw img { object-position: 50% 62%; }
.worry li { display: flex; align-items: center; gap: 16px; padding: 14px 0; border-bottom: 2px solid var(--c-line); font-weight: 800; font-size: 18px; line-height: 1.5; }
.worry li:first-child { border-top: 2px solid var(--c-line); }
.num { font-family: var(--font-en); font-weight: 600; font-size: 44px; line-height: 1; color: var(--c-accent-text); flex: none; min-width: 1.6em; }

/* 4 プラン */
.plans li { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 16px; background: var(--c-bg-alt); border-left: 6px solid var(--c-2); }
.plans li + li { margin-top: 10px; }
.plans h3 { font-weight: 900; font-size: 19px; line-height: 1.4; }
.plans li p { color: var(--c-sub); font-size: 15px; line-height: 1.5; }
.plans .price { font-family: var(--font-en); font-weight: 600; font-size: 26px; line-height: 1.1; color: var(--c-accent-text); text-align: right; white-space: nowrap; }
.plans .price span { font-family: var(--font-ja); font-weight: 700; font-size: 15px; margin-right: 4px; color: var(--c-sub); }

/* 5 流れ */
.steps { position: relative; }
.steps::before { content: ""; position: absolute; left: 20px; top: 10px; bottom: 10px; width: 3px; background: var(--c-2); }
.steps li { display: flex; gap: 16px; align-items: flex-start; position: relative; padding: 8px 0; }
.steps .num { display: grid; place-items: center; width: 42px; min-width: 42px; height: 42px; background: var(--c-accent); color: var(--c-on-accent); font-size: 26px; flex: none; }
.steps h3 { font-weight: 900; font-size: 18px; line-height: 1.4; }
.steps p { color: var(--c-sub); font-size: 15px; line-height: 1.6; }

/* 6 質問 */
.faq details { border-bottom: 2px solid var(--c-line); }
.faq details:first-child { border-top: 2px solid var(--c-line); }
.faq summary { list-style: none; cursor: pointer; min-height: 56px; display: flex; align-items: center; justify-content: space-between; gap: 12px; font-weight: 800; font-size: 17px; padding: 8px 0; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "＋"; font-family: var(--font-en); font-size: 24px; color: var(--c-accent-text); flex: none; }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 0 14px; color: var(--c-sub); }

/* 7 予約 */
.tel { font-family: var(--font-en); font-weight: 600; font-size: 20px; letter-spacing: .08em; }
.tel span { font-size: 34px; letter-spacing: .1em; }
.info > div { display: grid; grid-template-columns: 3.2em 1fr; gap: 12px; padding: 10px 0; border-bottom: 2px solid var(--c-line); }
.info dt { font-weight: 800; }
.fake { font-size: 15px; color: var(--c-sub); }
.s-red .btn { border-color: var(--c-text); }

/* ===== 1枚目：丸窓が開き、そのあとゆっくり寄り続ける（CSSだけ・動きの主役） ===== */
@media (prefers-reduced-motion: no-preference) {
  .hero__photo { animation: win 1.4s var(--ease) both; }
  .hero__photo img { animation: drift 28s ease-in-out 1.2s infinite alternate; }
  .hero__col > * { animation: show .6s linear 1s both; }
}
@keyframes win { from { clip-path: circle(12% at 50% 46%); } to { clip-path: circle(150% at 50% 46%); } }
@keyframes drift { from { transform: scale(1.04) translateX(0); } to { transform: scale(1.18) translateX(-3%); } }
@keyframes show { from { opacity: 0; } to { opacity: 1; } }

@media (min-width: 768px) {
  .slide { padding-left: 40px; padding-right: 40px; }
  .band { margin-left: -40px; margin-right: -40px; height: calc(var(--header-h) + 22svh); }
  .h2 { font-size: clamp(40px, 5vw, 60px); }
  .hero__photo img { object-position: 50% 50%; }
}
@media (min-width: 1080px) {
  .dots { display: flex; flex-direction: column; position: fixed; right: 8px; background: var(--c-bg); padding: 4px 0; top: 50%; transform: translateY(-50%); z-index: 20; }
  .dots a { width: 44px; height: 44px; display: grid; place-items: center; text-decoration: none; }
  .dots a::before { content: ""; width: 12px; height: 12px; border: 2px solid var(--c-text); background: transparent; box-shadow: 0 0 0 1px color-mix(in srgb, var(--c-bg) 60%, transparent); }
  .dots a[aria-current="true"]::before { background: var(--c-2); border-color: var(--c-2); }
}
@media (max-height: 700px) { .band { height: calc(var(--header-h) + 10svh); margin-bottom: 14px; } .col > * + * { margin-top: 12px; } }