/* ===========================================================
   hakuto AI — lab.html
   テーマ：製図ノート風（クリーム × 黒 × 朱オレンジ）
   =========================================================== */

/* ========== 全体トークン（b612.css の dark theme を強制上書き） ========== */
body.b612--lab {
  /* paper theme tokens */
  --paper-bg:       #faf6ec;
  --paper-card:     #fbf8ef;
  --paper-line:     #1a1a1a;
  --paper-line-soft:#3a3a3a;
  --paper-line-faint:rgba(26, 26, 26, 0.18);
  --paper-text:     #1a1a1a;
  --paper-text-mid: #555555;
  --paper-text-low: #8a8a8a;
  --paper-accent:   #e85d3a;
  --paper-accent-d: #c84a2a;
  --paper-accent-l: #f47852;
  --paper-stamp:    #d33a2c;

  /* b612.css 変数も上書き（safety） */
  --text: #1a1a1a !important;
  --text-mute: #555555 !important;
  --text-dim: #8a8a8a !important;
  --gold: #e85d3a !important;
  --gold-bright: #c84a2a !important;
  --gold-soft: rgba(232, 93, 58, 0.2) !important;
  --gold-glow: rgba(232, 93, 58, 0.4) !important;
  --bg: #faf6ec !important;
  --bg-alt: #f5f0e2 !important;
  --card: #fbf8ef !important;
  --card-2: #f5f0e2 !important;
  --card-featured: #fbf8ef !important;
  --border: rgba(26, 26, 26, 0.18) !important;
  --border-strong: rgba(26, 26, 26, 0.3) !important;
  --highlight: #e85d3a !important;

  background: var(--paper-bg) !important;
  background-attachment: scroll !important;
  color: var(--paper-text) !important;
  font-family: "Inter", "Noto Sans JP", sans-serif !important;
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.7;
  overflow-x: hidden;
}

/* 既存の3D・ポップ装飾を全部消す（紙テーマには合わない） */
body.b612--lab .lab-bg,
body.b612--lab .lab-bg-canvas,
body.b612--lab .lab-bg-layer,
body.b612--lab .lab-bg-glow,
body.b612--lab .b612-lab-hero__pop,
body.b612--lab .b612-lab-hero__pop-cloud,
body.b612--lab .b612-lab-hero__pop-ring,
body.b612--lab .b612-lab-hero__pop-blob {
  display: none !important;
}

/* 全コンテンツを最前面に */
body.b612--lab > *:not(.lab-bg) {
  position: relative;
  z-index: 1;
}

/* ストーリーパート系のフォントを上書き（明朝NG） */
body.b612--lab * {
  font-family: "Inter", "Noto Sans JP", sans-serif;
}
body.b612--lab .lab-jp-serif,
body.b612--lab .b612-lab-hero__title,
body.b612--lab .b612-section-title,
body.b612--lab .b612-invitation__title {
  font-family: "Shippori Mincho", "Noto Serif JP", "YuMincho", "Hiragino Mincho ProN", serif !important;
}

/* ========== Container ========== */
body.b612--lab .lab-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 640px) {
  body.b612--lab .lab-container { padding: 0 20px; }
}

/* ========== Header ========== */
body.b612--lab .header {
  background: rgba(250, 246, 236, 0.92) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--paper-line-faint) !important;
  box-shadow: none !important;
}
body.b612--lab .header__logo {
  display: inline-flex !important;
  align-items: center !important;
  gap: 12px;
  color: var(--paper-text) !important;
  -webkit-text-fill-color: var(--paper-text) !important;
  background: none !important;
  font-family: "Inter", sans-serif !important;
  font-weight: 800 !important;
  font-size: 1.15rem !important;
  letter-spacing: 0.02em;
}
body.b612--lab .header__logo::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 18px;
  background: var(--paper-line) !important;
  border-radius: 3px;
  box-shadow: none;
}
body.b612--lab .header__nav {
  gap: 0 !important;
}
body.b612--lab .header__nav a {
  display: inline-flex;
  align-items: center;
  color: var(--paper-text) !important;
  -webkit-text-fill-color: var(--paper-text) !important;
  background: none !important;
  font-family: "Inter", "Noto Sans JP", sans-serif !important;
  font-weight: 500 !important;
  font-size: 0.92rem !important;
  padding: 8px 16px !important;
  position: relative;
}
body.b612--lab .header__nav a + a::before {
  content: '/';
  position: absolute;
  left: -3px;
  color: var(--paper-text-low);
  font-weight: 400;
}
body.b612--lab .header__nav a:hover {
  color: var(--paper-accent) !important;
  -webkit-text-fill-color: var(--paper-accent) !important;
  background: none !important;
}
body.b612--lab .header__cta {
  background: transparent !important;
  color: var(--paper-accent) !important;
  -webkit-text-fill-color: var(--paper-accent) !important;
  border: 1.5px solid var(--paper-accent) !important;
  font-family: "Inter", "Noto Sans JP", sans-serif !important;
  font-weight: 600 !important;
  padding: 9px 20px !important;
  border-radius: 6px !important;
  font-size: 0.85rem !important;
  box-shadow: none !important;
  transition: all 0.2s !important;
}
body.b612--lab .header__cta:hover {
  background: var(--paper-accent) !important;
  color: #fff !important;
  -webkit-text-fill-color: #fff !important;
  transform: none;
}
body.b612--lab .header__cta::before { display: none !important; }
body.b612--lab .header__menu span { background: var(--paper-line) !important; }
body.b612--lab .mobile-menu {
  background: var(--paper-bg) !important;
  color: var(--paper-text) !important;
}
body.b612--lab .mobile-menu__nav a {
  color: var(--paper-text) !important;
  border-color: var(--paper-line-faint) !important;
}
body.b612--lab .mobile-menu__num { color: var(--paper-accent) !important; }

/* ========== セクション共通：番号タグ ========== */
body.b612--lab .lab-section {
  position: relative;
  padding: 60px 0;
  border-bottom: 1px solid var(--paper-line-faint);
}
body.b612--lab .lab-section__corner {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 32px;
  font-family: "Inter", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--paper-text-mid);
}
body.b612--lab .lab-section__corner-num {
  font-family: "JetBrains Mono", "Inter", monospace;
  color: var(--paper-text);
  font-weight: 700;
}
body.b612--lab .lab-section__corner-name {
  font-weight: 700;
  color: var(--paper-text);
  letter-spacing: 0.15em;
}
body.b612--lab .lab-section__corner-desc {
  color: var(--paper-text-mid);
}

/* ========== HERO ========== */
body.b612--lab .lab-hero {
  position: relative;
  padding: 100px 0 60px;
  border-bottom: 1px solid var(--paper-line-faint);
  background: var(--paper-bg);
}
body.b612--lab .lab-hero__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 900px) {
  body.b612--lab .lab-hero__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}
body.b612--lab .lab-hero__badge {
  display: inline-block;
  border: 1.5px solid var(--paper-accent);
  color: var(--paper-accent);
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.84rem;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 4px;
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}
body.b612--lab .lab-hero__title {
  font-family: "Shippori Mincho", "Noto Serif JP", serif !important;
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--paper-text);
  margin: 0 0 32px;
}
body.b612--lab .lab-hero__title em {
  font-style: normal;
  color: var(--paper-accent) !important;
  -webkit-text-fill-color: var(--paper-accent) !important;
  background: none !important;
  filter: none !important;
}
body.b612--lab .lab-hero__lead {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--paper-text-mid);
  margin: 0 0 28px;
}
body.b612--lab .lab-hero__lead b {
  color: var(--paper-text);
  font-weight: 600;
}
body.b612--lab .lab-hero__checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 36px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
body.b612--lab .lab-hero__checklist li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--paper-text);
}
body.b612--lab .lab-hero__checklist li::before {
  content: '';
  width: 22px;
  height: 22px;
  background: var(--paper-accent);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/65% no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/65% no-repeat;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1.5px solid var(--paper-accent);
  background-color: transparent;
}

/* Hero CTA */
body.b612--lab .lab-hero__cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
body.b612--lab .lab-hero__cta .lab-btn--primary {
  background: var(--paper-accent);
  color: #fff;
  border: none;
  padding: 14px 28px;
  border-radius: 4px;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  box-shadow: 0 2px 0 var(--paper-accent-d);
}
body.b612--lab .lab-hero__cta .lab-btn--primary:hover {
  background: var(--paper-accent-d);
  transform: translateY(-1px);
}
body.b612--lab .lab-hero__cta .lab-btn--ghost {
  background: transparent;
  color: var(--paper-text);
  border: 1.5px solid var(--paper-text);
  padding: 14px 28px;
  border-radius: 4px;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: all 0.2s;
}
body.b612--lab .lab-hero__cta .lab-btn--ghost:hover {
  background: var(--paper-text);
  color: var(--paper-bg);
}

/* Hero 右側：b612 method 製図 */
body.b612--lab .lab-hero__blueprint {
  position: relative;
  background: var(--paper-card);
  border: 1px solid var(--paper-line);
  padding: 32px 28px 40px;
  min-height: 480px;
  font-family: "JetBrains Mono", "Inter", monospace;
}
body.b612--lab .lab-hero__blueprint::before,
body.b612--lab .lab-hero__blueprint::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--paper-line);
}
body.b612--lab .lab-hero__blueprint::before {
  top: -1px; left: -1px;
  border-right: none;
  border-bottom: none;
}
body.b612--lab .lab-hero__blueprint::after {
  top: -1px; right: -1px;
  border-left: none;
  border-bottom: none;
}
body.b612--lab .lab-hero__blueprint-tag {
  display: inline-block;
  font-family: "Inter", sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--paper-accent);
  border: 1px solid var(--paper-accent);
  padding: 3px 10px;
  border-radius: 2px;
  margin-bottom: 12px;
  letter-spacing: 0.1em;
}
body.b612--lab .lab-hero__blueprint-title {
  font-family: "Inter", sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--paper-text);
  margin: 0 0 24px;
  letter-spacing: 0.04em;
}
body.b612--lab .lab-hero__blueprint-steps {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  margin-bottom: 24px;
}
body.b612--lab .lab-hero__blueprint-step {
  position: relative;
  display: flex;
  align-items: stretch;
  border: 1px solid var(--paper-line);
  padding: 12px 16px;
  background: var(--paper-bg);
  z-index: 1;
}
body.b612--lab .lab-hero__blueprint-step + .lab-hero__blueprint-step::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 50%;
  width: 1.5px;
  height: 14px;
  background: var(--paper-line);
}
body.b612--lab .lab-hero__blueprint-step + .lab-hero__blueprint-step::after {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--paper-line);
}
body.b612--lab .lab-hero__blueprint-step-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--paper-text);
  width: 42px;
  flex-shrink: 0;
}
body.b612--lab .lab-hero__blueprint-step-name {
  font-family: "Inter", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--paper-text);
  margin-right: 12px;
  flex-shrink: 0;
}
body.b612--lab .lab-hero__blueprint-step-desc {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.78rem;
  color: var(--paper-text-mid);
}
body.b612--lab .lab-hero__blueprint-margin {
  position: absolute;
  right: -28px;
  top: 80px;
  font-family: "Shippori Mincho", serif;
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-size: 0.8rem;
  color: var(--paper-text-low);
  letter-spacing: 0.6em;
}

/* ========== FLOW ========== */
body.b612--lab .lab-flow__title {
  font-family: "Shippori Mincho", "Noto Serif JP", serif;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  text-align: center;
  color: var(--paper-text);
  margin: 0 0 40px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
body.b612--lab .lab-flow__title em {
  font-style: normal;
  color: var(--paper-accent);
  font-size: 1.15em;
  margin: 0 4px;
}
body.b612--lab .lab-flow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  max-width: 1100px;
  margin: 0 auto;
}
@media (min-width: 800px) {
  body.b612--lab .lab-flow-grid {
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    gap: 6px;
    align-items: stretch;
  }
}
body.b612--lab .lab-flow-step {
  position: relative;
  background: var(--paper-card);
  border: 1.5px solid var(--paper-line);
  padding: 24px 18px;
  text-align: center;
}
body.b612--lab .lab-flow-step::before,
body.b612--lab .lab-flow-step::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1.5px solid var(--paper-line);
}
body.b612--lab .lab-flow-step::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
body.b612--lab .lab-flow-step::after  { bottom: -1px; right: -1px; border-left: none; border-top: none; }
body.b612--lab .lab-flow-step__num {
  font-family: "JetBrains Mono", "Inter", monospace;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--paper-text);
  margin-bottom: 6px;
}
body.b612--lab .lab-flow-step__name {
  font-family: "Shippori Mincho", "Noto Serif JP", serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--paper-text);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
body.b612--lab .lab-flow-step__tag {
  display: inline-block;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  border: 1.5px solid var(--paper-text);
  color: var(--paper-text);
  padding: 4px 14px;
  border-radius: 2px;
  letter-spacing: 0.06em;
}
body.b612--lab .lab-flow-step__tag--free {
  border-color: var(--paper-accent);
  color: var(--paper-accent);
}
body.b612--lab .lab-flow-step__tag--contract {
  background: var(--paper-accent);
  color: #fff;
  border-color: var(--paper-accent);
}
body.b612--lab .lab-flow-arrow {
  font-family: "Inter", sans-serif;
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--paper-text-low);
  align-self: center;
  text-align: center;
}
@media (max-width: 799px) {
  body.b612--lab .lab-flow-arrow {
    transform: rotate(90deg);
    margin: 4px auto;
  }
}

/* ========== PRICING ========== */
body.b612--lab .lab-pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  max-width: 1100px;
  margin: 40px auto 0;
}
@media (min-width: 800px) {
  body.b612--lab .lab-pricing-grid {
    grid-template-columns: 1fr 1.15fr 1fr;
    gap: 22px;
  }
}
body.b612--lab .lab-pricing-card {
  position: relative;
  background: var(--paper-card);
  border: 1.5px solid var(--paper-line);
  padding: 32px 28px 36px;
  text-align: center;
  display: flex;
  flex-direction: column;
}
body.b612--lab .lab-pricing-card::before,
body.b612--lab .lab-pricing-card::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--paper-line);
}
body.b612--lab .lab-pricing-card::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
body.b612--lab .lab-pricing-card::after  { bottom: -1px; right: -1px; border-left: none; border-top: none; }
body.b612--lab .lab-pricing-card--featured {
  border: 2px solid var(--paper-accent);
  background: linear-gradient(180deg, #fbf3ee 0%, var(--paper-card) 100%);
}
body.b612--lab .lab-pricing-card--featured::before,
body.b612--lab .lab-pricing-card--featured::after {
  border-color: var(--paper-accent);
}
body.b612--lab .lab-pricing-card__stamp {
  position: absolute;
  top: -20px;
  right: -12px;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 2px solid var(--paper-stamp);
  background: var(--paper-bg);
  color: var(--paper-stamp);
  font-family: "Shippori Mincho", "Noto Serif JP", serif;
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(8deg);
  z-index: 2;
  letter-spacing: 0.1em;
  box-shadow: inset 0 0 0 5px var(--paper-bg), inset 0 0 0 6px var(--paper-stamp);
}
body.b612--lab .lab-pricing-card__name {
  font-family: "Shippori Mincho", "Noto Serif JP", serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--paper-text);
  margin-bottom: 24px;
  letter-spacing: 0.08em;
}
body.b612--lab .lab-pricing-card__price {
  font-family: "Shippori Mincho", "Noto Serif JP", serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--paper-text);
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: 0.02em;
}
body.b612--lab .lab-pricing-card--featured .lab-pricing-card__price {
  color: var(--paper-accent);
}
body.b612--lab .lab-pricing-card__price-unit {
  font-family: "Inter", sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--paper-text-mid);
  margin-left: 4px;
}
body.b612--lab .lab-pricing-card__price-sub {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.82rem;
  color: var(--paper-text-mid);
  margin-bottom: 24px;
}
body.b612--lab .lab-pricing-card__features {
  list-style: none;
  padding: 24px 0 0;
  margin: 0;
  border-top: 1px dashed var(--paper-line-faint);
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
  flex: 1;
}
body.b612--lab .lab-pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.88rem;
  color: var(--paper-text);
  line-height: 1.6;
}
body.b612--lab .lab-pricing-card__features li::before {
  content: '';
  width: 14px;
  height: 14px;
  background: var(--paper-accent);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/100% no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/100% no-repeat;
  flex-shrink: 0;
  margin-top: 4px;
}

/* ========== WORKS ========== */
body.b612--lab .lab-works__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}
body.b612--lab .lab-works__title {
  font-family: "Shippori Mincho", "Noto Serif JP", serif;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--paper-text);
  margin: 0;
  letter-spacing: 0.04em;
}
body.b612--lab .lab-works__title em {
  font-style: normal;
  color: var(--paper-accent);
  font-size: 1.25em;
  margin: 0 4px;
}
body.b612--lab .lab-works__hint {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.88rem;
  color: var(--paper-accent);
  font-weight: 500;
}
body.b612--lab .lab-works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
@media (min-width: 640px) {
  body.b612--lab .lab-works-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}
@media (min-width: 980px) {
  body.b612--lab .lab-works-grid { grid-template-columns: repeat(5, 1fr); gap: 18px; }
}
body.b612--lab .lab-works-item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--paper-line);
  background: #1a1a1a;
  display: block;
  text-decoration: none;
  transition: transform 0.3s, box-shadow 0.3s;
}
body.b612--lab .lab-works-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 28px -12px rgba(26, 26, 26, 0.4);
}
body.b612--lab .lab-works-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}
body.b612--lab .lab-works-item__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper-card);
  border: 1.5px dashed var(--paper-line-faint);
  color: var(--paper-text-low);
  font-family: "Inter", sans-serif;
  font-size: 2rem;
  font-weight: 300;
}

/* ========== FAQ ========== */
body.b612--lab .lab-faq-list {
  max-width: 980px;
  margin: 0 auto;
}
body.b612--lab .lab-faq-item {
  border-bottom: 1px solid var(--paper-line-faint);
  padding: 0;
}
body.b612--lab .lab-faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 8px;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 1.02rem;
  font-weight: 500;
  color: var(--paper-text);
  transition: color 0.2s;
}
body.b612--lab .lab-faq-item summary::-webkit-details-marker { display: none; }
body.b612--lab .lab-faq-item summary::after {
  content: '+';
  font-family: "Inter", sans-serif;
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--paper-accent);
  transition: transform 0.25s;
  margin-left: 16px;
}
body.b612--lab .lab-faq-item[open] summary::after {
  transform: rotate(45deg);
}
body.b612--lab .lab-faq-item summary:hover {
  color: var(--paper-accent);
}
body.b612--lab .lab-faq-item__body {
  padding: 0 8px 22px;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.92rem;
  color: var(--paper-text-mid);
  line-height: 1.85;
}
body.b612--lab .lab-faq-item__body b {
  color: var(--paper-text);
  font-weight: 700;
}

/* ========== CONTACT ========== */
body.b612--lab .lab-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}
@media (min-width: 900px) {
  body.b612--lab .lab-contact-grid { grid-template-columns: 1fr 1fr; gap: 60px; }
}
body.b612--lab .lab-contact__title {
  font-family: "Shippori Mincho", "Noto Serif JP", serif !important;
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--paper-text);
  margin: 0 0 24px;
  letter-spacing: 0.04em;
  line-height: 1.4;
}
body.b612--lab .lab-contact__title em {
  font-style: normal;
  color: var(--paper-accent);
}
body.b612--lab .lab-contact__trust {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 24px;
  margin-bottom: 32px;
  max-width: 360px;
}
body.b612--lab .lab-contact__trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--paper-text);
}
body.b612--lab .lab-contact__trust-item svg {
  width: 18px;
  height: 18px;
  color: var(--paper-text-mid);
  flex-shrink: 0;
}
body.b612--lab .lab-contact__actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
body.b612--lab .lab-contact__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 4px;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}
body.b612--lab .lab-contact__btn--mail {
  background: var(--paper-accent);
  color: #fff;
  border: none;
  box-shadow: 0 2px 0 var(--paper-accent-d);
}
body.b612--lab .lab-contact__btn--mail:hover {
  background: var(--paper-accent-d);
  transform: translateY(-1px);
}
body.b612--lab .lab-contact__btn--line {
  background: #fff;
  color: #06c755;
  border: 1.5px solid #06c755;
}
body.b612--lab .lab-contact__btn--line:hover {
  background: #06c755;
  color: #fff;
}
body.b612--lab .lab-contact__btn-icon {
  width: 18px;
  height: 18px;
}

/* Referral banner */
body.b612--lab .lab-referral-banner {
  margin-top: 28px;
  background: var(--paper-card);
  border: 1px dashed var(--paper-accent);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-radius: 4px;
}
body.b612--lab .lab-referral-banner__icon {
  width: 36px;
  height: 36px;
  color: var(--paper-accent);
  flex-shrink: 0;
}
body.b612--lab .lab-referral-banner__text {
  flex: 1;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.88rem;
  color: var(--paper-text);
  line-height: 1.6;
}
body.b612--lab .lab-referral-banner__text strong {
  color: var(--paper-text);
  font-weight: 700;
}
body.b612--lab .lab-referral-banner__text em {
  font-style: normal;
  color: var(--paper-accent);
  font-weight: 700;
}
body.b612--lab .lab-referral-banner__arrow {
  color: var(--paper-accent);
  font-size: 1.4rem;
  flex-shrink: 0;
}

/* ========== Footer ========== */
body.b612--lab .lab-footer {
  background: var(--paper-bg) !important;
  color: var(--paper-text) !important;
  padding: 30px 0 0;
  border-top: 1px solid var(--paper-line-faint);
}
body.b612--lab .lab-footer-line {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding: 18px 0;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 0.86rem;
  color: var(--paper-text);
}
body.b612--lab .lab-footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--paper-text);
}
body.b612--lab .lab-footer-logo::before {
  content: '';
  width: 16px;
  height: 16px;
  background: var(--paper-line);
  border-radius: 2px;
}
body.b612--lab .lab-footer__bottom {
  background: var(--paper-text);
  color: var(--paper-bg);
  padding: 14px 0;
  margin-top: 30px;
  text-align: center;
  font-family: "Inter", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.15em;
}

/* Reset b612.css footer color override */
body.b612--lab .footer {
  display: none !important;
}