/* =========================================================
   第2の脳ロードマップ LP v2 —「二つの返事」
   世界観: 黒曜石の書斎（墨黒 × 紙白 × 紫水晶 × ランプの灯）
   ========================================================= */

@font-face {
  font-family: 'Noto Sans JP';
  src: url('assets/fonts/noto-sans-jp-400-700-subset.woff2') format('woff2');
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

@font-face {
  font-family: 'Shippori Mincho B1';
  src: url('assets/fonts/shippori-mincho-b1-700-subset.woff2') format('woff2');
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: 'Shippori Mincho B1';
  src: url('assets/fonts/shippori-mincho-b1-800-subset.woff2') format('woff2');
  font-style: normal;
  font-weight: 800;
  font-display: swap;
}

@font-face {
  font-family: 'JetBrains Mono';
  src: url('assets/fonts/jetbrains-mono-500-700-subset.woff2') format('woff2');
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
}

:root {
  --obsidian: #0E0E13;
  --panel: #16161E;
  --panel-2: #1C1C26;
  --paper: #F0ECE4;
  --muted: #B8B4C2;
  --amethyst: #9F8FEF;
  --amethyst-dim: rgba(159, 143, 239, .35);
  --lamp: #E8A87C;
  --lamp-deep: #D98B55;
  --line: #2A2A38;
  --font-display: 'Shippori Mincho B1', 'Noto Serif JP', serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 20px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 72px; }
#signup, #benefits { scroll-margin-top: 64px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--obsidian);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--amethyst); }

.container { max-width: 1020px; margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 620px; }
.container.narrow-m, .narrow-m { max-width: 780px; margin-left: auto; margin-right: auto; }
.sp-only { display: none; }
.pc-only { display: inline; }
@media (max-width: 600px) { .sp-only { display: inline; } .pc-only { display: none; } }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.accent { color: var(--lamp); }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  border-radius: 999px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:focus-visible { outline: 3px solid var(--amethyst); outline-offset: 3px; }

.btn-primary {
  background: linear-gradient(180deg, var(--lamp) 0%, var(--lamp-deep) 100%);
  color: #241505;
  font-size: 1.12rem;
  font-weight: 700;
  padding: 1.05rem 2.4rem;
  box-shadow: 0 6px 24px rgba(232, 168, 124, .3), inset 0 1px 0 rgba(255, 255, 255, .45);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(232, 168, 124, .4), inset 0 1px 0 rgba(255,255,255,.45); }

.btn-small {
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--line);
  font-size: .85rem;
  padding: .55rem 1.2rem;
}
.btn-small:hover { border-color: var(--lamp); color: var(--lamp); }
.btn-block { width: 100%; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 14, 19, .88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1020px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { font-family: var(--font-display); font-weight: 800; font-size: 1rem; letter-spacing: .025em; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 90px 0 100px; overflow: hidden; }
@media (max-width: 768px) { .hero { padding: 56px 0 72px; } }
#graphCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .5;
  pointer-events: none;
}
.hero-inner { position: relative; text-align: center; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--amethyst);
  border: 1px solid var(--amethyst-dim);
  display: inline-block;
  padding: .3rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.6rem;
  background: rgba(159, 143, 239, .07);
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.15rem, 5.8vw, 3.85rem);
  line-height: 1.42;
  letter-spacing: .018em;
  text-wrap: balance;
  margin-bottom: .8rem;
}
.hero-sub { color: var(--muted); font-size: clamp(.95rem, 2.4vw, 1.15rem); margin-bottom: 3rem; }

.cta-block { display: flex; flex-direction: column; gap: .8rem; align-items: center; }
.hero .cta-block { margin-top: 2.4rem; }
.cta-block.center { align-items: center; margin-top: 2.6rem; }
.micro { font-size: .875rem; color: var(--muted); }
.micro.center { text-align: center; }
.micro a { color: var(--muted); }
.micro-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .15rem .7rem;
}
.micro-item { display: inline-block; white-space: nowrap; }
.hero .micro-item:not(:last-child)::after {
  content: "／";
  margin-left: .7rem;
  color: #777382;
}

/* ---------- セクション共通 ---------- */
section { padding: 88px 0; }
@media (max-width: 768px) { section { padding: 62px 0; } }

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.8vw, 2.5rem);
  line-height: 1.52;
  text-align: center;
  text-wrap: balance;
  letter-spacing: .012em;
  margin-bottom: .9rem;
}
.section-title.left { text-align: left; }
.section-title.center { text-align: center; }
.section-lede { text-align: center; color: var(--muted); margin-bottom: 3rem; font-size: 1rem; }
.section-kicker {
  margin-bottom: .6rem;
  color: var(--amethyst);
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-align: center;
}

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.on { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- 漫画 ---------- */
.manga {
  background:
    radial-gradient(760px 380px at 50% 0%, rgba(159, 143, 239, .08), transparent 68%),
    var(--obsidian);
}
.manga-stack {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 720px;
  margin: 0 auto;
}
.manga-stack::before {
  content: "";
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: -24px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--amethyst), var(--lamp), transparent);
}
.manga-page {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: 0 18px 52px rgba(0, 0, 0, .28);
}

/* ---------- 漫画の答え: 二つの返事 ---------- */
.reply-compare {
  background:
    radial-gradient(700px 430px at 50% 12%, rgba(232, 168, 124, .07), transparent 70%),
    var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.visual-figure {
  width: min(100%, 680px);
  margin: 0 auto;
}
.visual-figure img {
  width: 100%;
  border: 1px solid rgba(240, 236, 228, .14);
  border-radius: var(--radius-l);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .34);
}
.visual-figure figcaption,
.proof-evidence figcaption {
  margin-top: .8rem;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.75;
  text-align: center;
}
.reply-details {
  width: min(100%, 680px);
  margin: 1.2rem auto 0;
  overflow: hidden;
  background: rgba(14, 14, 19, .6);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
}
.reply-details summary {
  position: relative;
  padding: .85rem 3rem .85rem 1rem;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.reply-details summary::-webkit-details-marker { display: none; }
.reply-details summary::after {
  content: "＋";
  position: absolute;
  top: 50%;
  right: 1rem;
  color: var(--lamp);
  transform: translateY(-50%);
}
.reply-details[open] summary::after { content: "－"; }
.reply-transcript {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 0 14px 14px;
}
.reply-answer {
  padding: 18px;
  border-radius: var(--radius-s);
  background: var(--panel-2);
  border: 1px solid var(--line);
}
.reply-answer h3 {
  margin-bottom: .55rem;
  font-family: var(--font-display);
  font-size: 1rem;
}
.reply-answer p { color: var(--muted); font-size: .94rem; line-height: 1.9; }
.personal-answer { border-color: rgba(232, 168, 124, .5); }
.personal-answer h3 { color: var(--lamp); }
.personal-answer p { color: var(--paper); }

/* ---------- 実証 300 vs 570 ---------- */
.proof-exp { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.exp-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: center;
  max-width: 820px;
  margin: 0 auto 2.4rem;
}
@media (max-width: 700px) { .exp-grid { grid-template-columns: 1fr; } .exp-vs { display: none; } }
.exp-card {
  background: var(--obsidian);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 28px 24px;
  text-align: center;
}
.exp-card.win { border-color: rgba(232, 168, 124, .6); box-shadow: 0 0 34px rgba(232, 168, 124, .08); }
.exp-cond { font-size: .95rem; color: var(--muted); margin-bottom: .6rem; }
.exp-cond strong { color: var(--paper); }
.exp-num { font-size: clamp(3rem, 7vw, 4.2rem); font-weight: 700; line-height: 1.15; }
.exp-num .approx { margin-right: .18em; font-family: var(--font-body); font-size: .34em; font-weight: 700; vertical-align: .7em; }
.muted-num { color: var(--muted); }
.accent-num { color: var(--lamp); text-shadow: 0 0 26px rgba(232, 168, 124, .35); }
.exp-unit { font-size: .875rem; color: var(--muted); }
.exp-vs { font-size: 1rem; color: var(--muted); letter-spacing: .1em; }
.exp-verdict { text-align: center; font-size: 1.1rem; line-height: 2.1; font-family: var(--font-display); }
.exp-limit { max-width: 680px; margin: .8rem auto 0; color: var(--muted); font-size: .82rem; line-height: 1.75; text-align: center; }
.exp-note { text-align: center; font-size: .9rem; color: var(--muted); margin-top: 1rem; }
.proof-evidence {
  width: min(100%, 536px);
  margin: 0 auto 2.4rem;
}
.proof-evidence img {
  width: 100%;
  border: 1px solid rgba(240, 236, 228, .16);
  border-radius: var(--radius-m);
  box-shadow: 0 20px 56px rgba(0, 0, 0, .3);
}

/* ---------- 種明かし ---------- */
.bridge .section-lede strong { color: var(--paper); }
.context-figure { margin-bottom: 2.2rem; }
.context-figure img {
  filter: brightness(1.08) saturate(1.04);
  box-shadow: 0 24px 74px rgba(68, 54, 132, .28);
}
.bridge-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 768px) { .bridge-points { grid-template-columns: 1fr; } }
.bp { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 22px; }
.bp-num { font-size: .72rem; font-weight: 700; letter-spacing: .18em; color: var(--amethyst); }
.bp h3 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; margin: .5rem 0 .5rem; }
.bp p { font-size: .95rem; color: var(--muted); line-height: 1.9; }

/* ---------- 構築後の1日 ---------- */
.oneday { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-gateway {
  position: relative;
  max-width: 880px;
  margin: 0 auto 3rem;
  overflow: hidden;
  background:
    radial-gradient(520px 210px at 50% 0%, rgba(232, 168, 124, .11), transparent 72%),
    linear-gradient(145deg, rgba(28, 28, 38, .98), rgba(14, 14, 19, .98));
  border: 1px solid rgba(232, 168, 124, .36);
  border-radius: var(--radius-l);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .34), 0 0 50px rgba(159, 143, 239, .06);
}
#productGateway { scroll-margin-top: 84px; }
.product-gateway::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, .035);
  border-radius: inherit;
  pointer-events: none;
}
.product-banner-frame {
  padding: 8px;
  background: linear-gradient(90deg, rgba(159, 143, 239, .18), rgba(232, 168, 124, .14), rgba(159, 143, 239, .18));
  border-bottom: 1px solid rgba(232, 168, 124, .22);
}
.product-banner-frame img {
  width: 100%;
  border: 1px solid rgba(240, 200, 115, .42);
  border-radius: 12px 12px 8px 8px;
  box-shadow: 0 14px 36px rgba(0, 0, 0, .36);
}
.product-gateway-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 25px 26px 27px;
}
.product-gateway-label {
  margin-bottom: .35rem;
  color: var(--lamp);
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .18em;
}
.product-gateway-copy h3 {
  margin-bottom: .6rem;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.8vw, 1.42rem);
  font-weight: 800;
  line-height: 1.58;
}
.product-gateway-desc { color: var(--muted); font-size: .95rem; line-height: 1.9; }
.product-benefit-note {
  margin-top: .65rem;
  color: #C9C3D5;
  font-size: .78rem;
  line-height: 1.7;
}
.product-gateway-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 255px;
}
.product-gateway-primary { width: 100%; padding: .82rem 1rem; font-size: .92rem; }
.btn-product {
  width: 100%;
  padding: .78rem 1rem;
  color: var(--paper);
  background: rgba(159, 143, 239, .07);
  border: 1px solid rgba(159, 143, 239, .58);
  font-size: .9rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .035);
}
.btn-product:hover {
  color: #F0E7FF;
  border-color: var(--amethyst);
  background: rgba(159, 143, 239, .13);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(159, 143, 239, .16);
}
.day-flow {
  --timeline-axis: 65px;
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.day-flow::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 42px;
  bottom: 42px;
  left: var(--timeline-axis);
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, #F0C873 0%, #AB9AF8 36%, #EEAC7E 68%, #8495E8 100%);
  box-shadow: 0 0 16px rgba(159, 143, 239, .38);
  opacity: .72;
  pointer-events: none;
}
.flow-item {
  --time-accent: var(--amethyst);
  --time-glow: rgba(159, 143, 239, .09);
  position: relative;
  z-index: 1;
  overflow: hidden;
  display: grid;
  grid-template-columns: 94px 1fr;
  gap: 22px;
  align-items: center;
  padding: 22px 24px 22px 18px;
  background:
    radial-gradient(240px 150px at 5% 50%, var(--time-glow), transparent 72%),
    linear-gradient(110deg, rgba(255, 255, 255, .025), transparent 46%),
    var(--panel-2);
  border: 1px solid rgba(240, 236, 228, .11);
  border-radius: var(--radius-m);
  box-shadow: 0 14px 34px rgba(0, 0, 0, .18), inset 0 1px 0 rgba(255, 255, 255, .035);
}
.flow-item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--time-accent) 22%, var(--time-accent) 78%, transparent);
  box-shadow: 0 0 16px var(--time-glow);
  opacity: .65;
}
.time-morning { --time-accent: #F0C873; --time-glow: rgba(240, 200, 115, .16); }
.time-noon { --time-accent: #AB9AF8; --time-glow: rgba(171, 154, 248, .16); }
.time-evening { --time-accent: #EEAC7E; --time-glow: rgba(238, 172, 126, .16); }
.time-night { --time-accent: #8495E8; --time-glow: rgba(132, 149, 232, .17); }
.flow-time {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--time-accent);
  text-align: center;
}
.time-seal {
  position: relative;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  color: var(--time-accent);
  background:
    radial-gradient(circle at 36% 30%, rgba(255, 255, 255, .12), transparent 22%),
    radial-gradient(circle, var(--time-glow), transparent 66%),
    #111119;
  border: 1px solid currentColor;
  border-radius: 50%;
  box-shadow:
    0 0 0 5px rgba(14, 14, 19, .88),
    0 0 0 6px color-mix(in srgb, currentColor 28%, transparent),
    0 0 28px var(--time-glow),
    inset 0 0 18px rgba(0, 0, 0, .52),
    inset 0 1px 0 rgba(255, 255, 255, .18);
}
.time-seal::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid currentColor;
  border-radius: inherit;
  opacity: .26;
}
.time-seal::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 50%;
  width: 5px;
  height: 5px;
  transform: translateX(-50%) rotate(45deg);
  background: currentColor;
  border: 2px solid var(--panel-2);
  box-shadow: 0 0 11px currentColor;
}
.time-glyph {
  position: relative;
  z-index: 1;
  width: 30px;
  height: 30px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.45;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 5px var(--time-glow));
}
.time-glyph-fill {
  fill: currentColor;
  fill-opacity: .12;
}
.time-label {
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .16em;
  text-indent: .16em;
  text-shadow: 0 0 14px var(--time-glow);
}
.cmd {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .875rem;
  color: var(--lamp);
  background: var(--obsidian);
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  padding: .25rem .8rem;
  margin-bottom: .5rem;
}
.flow-body p { font-size: 1rem; color: var(--muted); line-height: 1.9; }
.flow-body strong { color: var(--paper); }
.flow-benefit {
  margin-bottom: .55rem;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.55;
  letter-spacing: .015em;
}
.oneday-quote {
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.6vw, 1.35rem);
  margin-top: 3rem;
  line-height: 2;
}
.oneday-quote span { display: block; font-family: var(--font-body); font-size: .875rem; color: var(--muted); margin-top: .5rem; }
.oneday-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  max-width: 760px;
  margin: 2.2rem auto 0;
  padding: 22px 24px;
  background: linear-gradient(110deg, rgba(159, 143, 239, .1), rgba(232, 168, 124, .055));
  border: 1px solid rgba(159, 143, 239, .28);
  border-radius: var(--radius-m);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .035);
}
.oneday-next-label {
  display: inline-block;
  margin-bottom: .4rem;
  color: var(--amethyst);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .16em;
}
.oneday-next p { color: var(--muted); font-size: .92rem; line-height: 1.8; }
.oneday-next strong { color: var(--paper); }
.oneday-next-btn {
  flex: 0 0 auto;
  padding: .7rem 1.1rem;
  color: var(--paper);
  border: 1px solid rgba(232, 168, 124, .55);
  background: rgba(14, 14, 19, .5);
  font-size: .9rem;
  white-space: nowrap;
}
.oneday-next-btn:hover { color: var(--lamp); border-color: var(--lamp); transform: translateY(-1px); }

/* ---------- 山場の予告 ---------- */
.climax-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 768px) { .climax-cards { grid-template-columns: 1fr; } }
.climax-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 26px;
}
.climax-tag { font-size: .7rem; font-weight: 700; letter-spacing: .18em; color: var(--amethyst); }
.climax-card h3 { font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; margin: .6rem 0 .8rem; }
.climax-card > p { font-size: .95rem; color: var(--muted); line-height: 1.95; }
.climax-card p strong { color: var(--paper); }
.climax-chat { display: flex; flex-direction: column; gap: 10px; margin: 1rem 0 1.1rem; }
.cbubble {
  font-size: .93rem;
  padding: .7rem 1rem;
  border-radius: 12px;
  line-height: 1.8;
}
.cbubble.user { align-self: flex-end; background: #2E2A44; color: #EDE9FF; border-bottom-right-radius: 4px; max-width: 75%; }
.cbubble.ai { align-self: flex-start; background: var(--panel-2); border: 1px solid rgba(232,168,124,.4); color: var(--paper); border-bottom-left-radius: 4px; max-width: 92%; }

/* ---------- 声と数字 ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  max-width: 720px;
  margin: 0 auto 3rem;
}
.stat { text-align: center; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 20px 8px; }
.stat-num { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 700; color: var(--lamp); line-height: 1.2; }
.stat-num span { font-size: .6em; }
.stat-label { font-size: .82rem; color: var(--muted); margin-top: 4px; }

.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 2.4rem; }
@media (max-width: 860px) { .quote-grid { grid-template-columns: 1fr; } }
.quote-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-m); padding: 22px; }
.quote-card blockquote { font-size: .95rem; line-height: 1.95; color: var(--paper); }
.quote-card blockquote::before { content: "“"; color: var(--lamp); font-family: var(--font-display); font-size: 1.5rem; }
.quote-card figcaption { margin-top: .8rem; font-size: .82rem; color: var(--muted); }

.review-gallery { columns: 3 240px; column-gap: 14px; }
.review-gallery img {
  width: 100%;
  margin-bottom: 14px;
  break-inside: avoid;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
}
.review-overview {
  width: min(100%, 860px);
  margin: 18px auto 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
}
.strip-note { text-align: center; font-size: .82rem; color: var(--muted); margin-top: 12px; }
.stats-asof { margin: -2rem 0 2.4rem; }

/* ---------- 特典 ---------- */
.benefit-list { display: flex; flex-direction: column; gap: 20px; max-width: 840px; margin: 0 auto; }
.benefit-row {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 24px;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 20px;
}
@media (max-width: 640px) { .benefit-row { grid-template-columns: 1fr; } .benefit-row img { max-width: 250px; margin: 0 auto; } }
.benefit-row img { border-radius: var(--radius-s); }
.benefit-row h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; line-height: 1.65; margin: .35rem 0 .5rem; }
.benefit-row p { font-size: .95rem; color: var(--muted); line-height: 1.9; }
.b-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--lamp);
  border: 1px solid rgba(232, 168, 124, .4);
  border-radius: 999px;
  padding: .18rem .7rem;
}

/* ---------- 著者 ---------- */
.author { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.author-grid { display: grid; grid-template-columns: 280px 1fr; gap: 40px; align-items: center; }
@media (max-width: 768px) { .author-grid { grid-template-columns: 1fr; } .author-photo { max-width: 260px; margin: 0 auto; } }
.author-photo img { border-radius: 50%; border: 2px solid rgba(232, 168, 124, .5); }
.author-name { font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; margin-bottom: .8rem; }
.author-name span { display: block; font-family: var(--font-body); font-size: .84rem; font-weight: 400; color: var(--muted); margin-top: 2px; }
.author-body p { color: var(--muted); font-size: 1rem; margin-bottom: .9rem; }
.author-body p strong { color: var(--paper); }
.author-body .section-title { margin-bottom: 1.2rem; }

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 740px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 48px 18px 20px;
  font-weight: 700;
  font-size: 1rem;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "＋";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--lamp);
  font-weight: 700;
}
.faq-item[open] summary::after { content: "－"; }
.faq-item p { padding: 0 20px 18px; font-size: .95rem; color: var(--muted); }

/* ---------- Signup ---------- */
.signup {
  background:
    radial-gradient(700px 380px at 50% 0%, rgba(232, 168, 124, .08), transparent 65%),
    var(--obsidian);
}
.form-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 30px 26px;
}
.form-group { display: flex; flex-direction: column; gap: .35rem; margin-bottom: 1.1rem; text-align: left; }
.form-group label { font-size: .9rem; font-weight: 700; color: var(--muted); }
.form-group input {
  width: 100%;
  font-size: 1rem;
  font-family: var(--font-body);
  padding: .85rem 1rem;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-s);
  background: var(--obsidian);
  color: var(--paper);
}
.form-group input::placeholder { color: #85818F; opacity: 1; }
.form-group input:focus { outline: none; border-color: var(--lamp); box-shadow: 0 0 0 3px rgba(232, 168, 124, .18); }
.form-card .btn { margin: .4rem 0 1rem; }

/* ---------- Sticky CTA ---------- */
.sticky-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(14, 14, 19, .95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
  display: none;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(110%);
  transition: transform .3s ease, visibility 0s linear .3s;
}
.sticky-cta.show { visibility: visible; pointer-events: auto; transform: none; transition-delay: 0s; }
@media (max-width: 768px) {
  html { scroll-padding-bottom: calc(84px + env(safe-area-inset-bottom)); }
  .sticky-cta { display: block; }
}
@media (prefers-reduced-motion: reduce) { .sticky-cta { transition: none; } }

/* ---------- Footer ---------- */
.site-footer {
  background: #000;
  color: var(--muted);
  padding: 44px 0 60px;
  text-align: center;
  font-size: .875rem;
  border-top: 1px solid var(--line);
}
.footer-title { font-family: var(--font-display); font-weight: 700; color: var(--paper); font-size: .95rem; letter-spacing: .06em; margin-bottom: 8px; }
.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 18px; margin-top: 14px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--paper); text-decoration: underline; }

/* ---------- 390px優先のモバイル調整 ---------- */
@media (max-width: 600px) {
  body { font-size: 16px; line-height: 1.88; }
  .container { padding: 0 18px; }

  .header-inner { padding: 10px 16px; gap: 10px; }
  .logo { flex: 1 1 auto; min-width: 0; font-size: .9rem; letter-spacing: .01em; white-space: nowrap; }
  .btn-small { flex: 0 0 auto; font-size: .8rem; padding: .5rem .85rem; }

  .hero { padding: 50px 0 66px; }
  .hero-title { font-size: 2.05rem; line-height: 1.42; letter-spacing: 0; }
  .hero-sub { font-size: 1rem; line-height: 1.8; margin-bottom: 0; }
  .hero .cta-block { margin-top: 2rem; }
  .hero .micro-list { max-width: 330px; row-gap: .1rem; }
  .hero .micro-item:not(:last-child)::after { margin-left: .45rem; }
  .micro-list { column-gap: .45rem; }

  .btn-primary { width: 100%; font-size: 1rem; line-height: 1.55; padding: .95rem 1.1rem; }
  .cta-block > .btn { width: 100%; max-width: 420px; }

  section { padding: 60px 0; }
  .section-title { font-size: 1.76rem; line-height: 1.5; letter-spacing: 0; }
  .section-title.left { text-align: center; }
  .section-lede { margin-bottom: 2.4rem; font-size: 1rem; line-height: 1.85; }

  .manga-stack { gap: 14px; }
  .manga-stack::before { display: none; }
  .manga-page { border-radius: 8px; }

  .visual-figure img { border-radius: 10px; }
  .visual-figure figcaption,
  .proof-evidence figcaption { font-size: .875rem; line-height: 1.75; }
  .reply-details summary { min-height: 48px; font-size: 1rem; }
  .reply-transcript { grid-template-columns: 1fr; }
  .reply-answer p { font-size: 1rem; }
  .proof-evidence { margin-bottom: 2rem; }

  .product-gateway { margin-bottom: 2.5rem; border-radius: 14px; }
  .product-banner-frame { padding: 5px; }
  .product-banner-frame img { border-radius: 9px 9px 6px 6px; }
  .product-gateway-body { grid-template-columns: 1fr; gap: 20px; padding: 21px 18px 22px; }
  .product-gateway-copy h3 { font-size: 1.18rem; line-height: 1.65; }
  .product-title-break { display: block; }
  .product-gateway-desc { font-size: 1rem; }
  .product-benefit-note { font-size: .875rem; line-height: 1.75; }
  .product-gateway-actions { width: 100%; }
  .product-gateway-primary,
  .btn-product { width: 100%; min-height: 50px; white-space: normal; }
  .btn-product { font-size: 1rem; }

  .exp-card,
  .bp,
  .climax-card,
  .benefit-row,
  .form-card { padding: 20px; }

  .flow-item {
    grid-template-columns: 70px 1fr;
    gap: 14px;
    padding: 19px 16px 19px 10px;
  }
  .day-flow { --timeline-axis: 45px; gap: 14px; }
  .time-seal { width: 52px; height: 52px; }
  .time-glyph { width: 27px; height: 27px; }
  .flow-time { gap: 7px; }
  .time-label { font-size: .9rem; }
  .flow-benefit { font-size: 1.02rem; line-height: 1.55; }
  .oneday-next { grid-template-columns: 1fr; gap: 16px; padding: 20px; }
  .oneday-next p { font-size: 1rem; }
  .oneday-next-btn { width: 100%; white-space: normal; }

  .exp-cond,
  .bp p,
  .flow-body p,
  .climax-card > p,
  .cbubble,
  .quote-card blockquote,
  .benefit-row p,
  .author-body p,
  .faq-item p { font-size: 1rem; }

  .exp-note,
  .exp-limit,
  .quote-card figcaption,
  .strip-note,
  .micro,
  .author-name span,
  .oneday-quote span,
  .site-footer { font-size: .875rem; line-height: 1.75; }

  .stat-row { gap: 8px; }
  .stat { padding: 18px 5px; }
  .stat-label { font-size: .78rem; line-height: 1.45; }
  .stats-asof { margin: -1.4rem 0 2.2rem; }

  .review-gallery { columns: 1; }
  .review-gallery img { margin-bottom: 12px; }
  .review-overview { margin-top: 8px; }

  .benefit-row h3 { font-size: 1.12rem; }
  .benefit-row img { width: min(100%, 280px); }
  .faq-item summary { font-size: 1rem; line-height: 1.65; }
  .sticky-cta .btn-primary { font-size: .95rem; padding: .85rem 1rem; }
}