/* LegalAgent AI法務ラボ — owned media pages */
.lab-page {
  position: relative;
  background: var(--paper);
  color: var(--on-paper);
}

/* 本文は構造体(.la-structure / styles-hero.css)より前面に重ねる。
   全セクションを z-index:1 にして、霧青の帯(::before)が構造体を確実に覆い、
   白セクションは透過で構造体を覗かせる(セクションの並び替え・ネスト変更に強い) */
.lab-content,
.lab-page section {
  position: relative;
  z-index: 1;
}

.lab-page,
.lab-content,
.lab-content > *,
.lab-feature-section,
.lab-section {
  min-width: 0;
}

/* 構造体ON時は白セクションを透過させ、固定の構造体を余白に覗かせる。
   .la-structure 本体・呼吸・またたき・ホバーのCSSは styles-hero.css を流用。
   またたき/ホバーの色は本ページ専用JSが青で注入する(HPは赤)。 */
body.la-structure-on .lab-media-intro {
  background: transparent;
}

/* セクションの区切り: 霧青(青磁)の全幅の帯。構造体を隠し、白セクションと交互で境界を明確化 */
.lab-section--panel {
  position: relative;
}

.lab-section--panel::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -50vw;
  width: 100vw;
  background: linear-gradient(180deg, #E6EDF6 0%, #DFE8F3 100%);
}

.lab-nav {
  gap: clamp(12px, 1.6vw, 24px);
  justify-content: flex-start;
}

.lab-nav .nav__brand {
  flex: 0 0 auto;
}

/* ラボのナビは「Explore Lab」と長いCTAを持つ分、共通ナビより広い幅が必要。
   項目間は折りたたみ直後の16pxから画面幅に応じて広げる(下の折りたたみ幅と対)。 */
.lab-nav .nav__items {
  flex: 1 1 auto;
  justify-content: center;
  min-width: 0;
  gap: clamp(16px, calc((100vw - 1700px) / 11), 26px);
}

html[lang="en"] .lab-nav .nav__items {
  gap: clamp(16px, calc((100vw - 1800px) / 11), 26px);
}

.lab-nav .nav__item {
  font-size: 14px;
  letter-spacing: 0.04em;
}

.lab-mega-nav {
  position: relative;
  flex: 0 0 auto;
}

.lab-mega-nav__toggle {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 12px;
  padding: 8px 13px;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  color: var(--nav-text);
  cursor: pointer;
  list-style: none;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.lab-mega-nav__toggle::-webkit-details-marker {
  display: none;
}

.lab-mega-nav__toggle span {
  display: grid;
  gap: 2px;
}

.lab-mega-nav__toggle strong {
  font-size: 14px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.lab-mega-nav__toggle small {
  color: var(--on-paper-faint);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-mega-nav__toggle svg {
  transition: transform 0.25s ease;
}

.lab-mega-nav[open] .lab-mega-nav__toggle,
.lab-mega-nav__toggle:hover {
  border-color: var(--paper-line-strong);
  background: var(--paper-2);
}

.lab-mega-nav[open] .lab-mega-nav__toggle svg {
  transform: rotate(180deg);
}

.lab-mega-nav__backdrop {
  display: none;
}

.lab-mega-nav[open] .lab-mega-nav__backdrop {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 110;
  display: block;
  width: 100vw;
  height: 100vh;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: default;
}

.lab-mega-nav__panel {
  position: fixed;
  top: 88px;
  left: 50%;
  z-index: 120;
  display: grid;
  width: min(1180px, calc(100vw - 32px));
  max-height: calc(100vh - 112px);
  grid-template-columns: minmax(260px, 0.95fr) repeat(3, minmax(190px, 0.72fr));
  gap: 18px;
  overflow: auto;
  padding: 18px;
  border: 1px solid var(--paper-line-strong);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 28px 80px -42px rgba(17, 19, 18, 0.42);
  transform: translateX(-50%);
}

.lab-mega-nav__intro,
.lab-mega-nav__column {
  min-width: 0;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-lg);
  background: var(--paper);
}

.lab-mega-nav__intro {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 20px;
  background: var(--paper-2);
}

.lab-mega-nav__eyebrow,
.lab-mega-nav__heading,
.lab-menu-compact__label,
.lab-menu-compact__subhead {
  color: var(--chrome);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.lab-mega-nav__intro strong {
  font-family: var(--serif-jp);
  font-size: 24px;
  line-height: 1.35;
  font-weight: 600;
  letter-spacing: 0;
}

.lab-mega-nav__intro p {
  margin: 0;
  color: var(--on-paper-mute);
  font-size: 14px;
  line-height: 1.75;
}

.lab-mega-nav__quick {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 4px;
}

.lab-mega-nav__quick a {
  display: grid;
  gap: 4px;
  min-height: 58px;
  align-content: center;
  padding: 10px 12px;
  border: 1px solid rgba(17, 19, 18, 0.1);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.72);
  color: inherit;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.lab-mega-nav__quick a:hover {
  border-color: rgba(174, 133, 62, 0.45);
  background: var(--paper);
}

.lab-mega-nav__quick span {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.25;
}

.lab-mega-nav__quick small {
  color: var(--on-paper-faint);
  font-size: 14px;
  line-height: 1.35;
}

.lab-mega-nav__column {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 16px;
}

.lab-mega-nav__links {
  display: grid;
  gap: 2px;
}

.lab-mega-nav__link {
  min-width: 0;
  border-radius: var(--radius-md);
  color: var(--on-paper);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.lab-mega-nav__link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-height: 38px;
  padding: 8px 10px;
}

.lab-mega-nav__link span {
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 14px;
  line-height: 1.45;
}

.lab-mega-nav__link span {
  white-space: nowrap;
}

.lab-mega-nav__link em {
  color: var(--on-paper-faint);
  font-family: var(--mono);
  font-size: 14px;
  font-style: normal;
}

.lab-mega-nav__link:hover,
.lab-mega-nav__link.is-active {
  background: var(--paper-2);
  color: var(--chrome);
}

.lab-menu-compact {
  display: grid;
  gap: 12px;
}

.lab-menu-compact__quick,
.lab-menu-compact__links {
  display: grid;
  gap: 2px;
}

.lab-menu-compact__quick {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.lab-menu-compact__quick a,
.lab-menu-compact__links a {
  color: var(--nav-text);
  text-decoration: none;
  border-radius: var(--radius-sm);
  background: var(--paper-2);
}

.lab-menu-compact__quick a {
  min-height: 36px;
  padding: 9px 10px;
  font-size: 14px;
  font-weight: 600;
}

.lab-menu-compact__links a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-height: 34px;
  padding: 8px 10px;
  font-size: 14px;
  line-height: 1.35;
}

.lab-menu-compact__links span {
  color: var(--on-paper-faint);
  font-family: var(--mono);
  font-size: 14px;
}

.lab-hero {
  padding: clamp(96px, 11vw, 160px) var(--gutter) clamp(56px, 7vw, 96px);
  border-bottom: 1px solid var(--paper-line);
}

.lab-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 0.9fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding-top: 56px;
}

.lab-hero__copy,
.lab-hero__visual {
  min-width: 0;
}

.lab-hero .crumbs {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.lab-hero__copy h1 {
  margin: 16px 0 0;
  font-family: var(--serif-jp);
  font-size: clamp(42px, 5.6vw, 76px);
  line-height: 1.12;
  letter-spacing: 0;
  font-weight: 500;
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: normal;
}

.lab-hero__copy p {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--on-paper-mute);
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 2;
  white-space: normal;
}

/* 法改正カレンダーの導入文の下に置く本文リンク（2026-10-09） */
.lab-hero__copy p a {
  color: inherit;
  text-underline-offset: 0.18em;
}

.lab-hero__copy p a:hover,
.lab-hero__copy p a:focus-visible {
  color: var(--on-paper);
}

.lab-hero__visual {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--paper-line);
  border-radius: 8px;
  background: var(--paper-2);
}

.lab-hero__visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* トップ(index)ヒーロー: 重なる光(青×朱の二円が中央で重なる) ＋ AI法務ラボ。
   順次点灯: ①Generative AI＋青光 → ②Legal＋朱光 → ③AI法務ラボ → リード文 */
.lab-hero__inner--olap {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.lab-hero--olap .crumbs {
  align-self: flex-start;
}

.lab-hero__olap {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.lab-hero__olap-eyebrow {
  opacity: 0;
  animation: labOlapFade 1s ease 0.2s both;
}

.lab-hero__olap-stage {
  position: relative;
  width: min(540px, 86vw);
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: -26px 0 -40px;
}

.lab-hero__olap-light {
  position: absolute;
  width: 66%;
  aspect-ratio: 1;
  border-radius: 50%;
  mix-blend-mode: multiply;
  opacity: 0;
  will-change: transform, opacity;
}

.lab-hero__olap-light--a {
  background: radial-gradient(circle, rgba(125, 160, 210, 0.64), rgba(125, 160, 210, 0) 70%);
  animation: labOlapDriftR 1.8s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
}

.lab-hero__olap-light--b {
  background: radial-gradient(circle, rgba(178, 39, 67, 0.46), rgba(178, 39, 67, 0) 70%);
  animation: labOlapDriftL 1.8s cubic-bezier(0.16, 1, 0.3, 1) 1.8s both;
}

.lab-hero__olap-lbl {
  position: absolute;
  z-index: 2;
  opacity: 0;
  font-weight: 500;
  white-space: nowrap;
}

.lab-hero__olap-lbl--ai {
  left: 5%;
  top: 21%;
  font-family: var(--mono);
  font-size: clamp(14px, 1.6vw, 20px);
  letter-spacing: 0.12em;
  color: #33507E;
  animation: labOlapFade 1.1s ease 0.8s both;
}

.lab-hero__olap-lbl--law {
  right: 7%;
  bottom: 21%;
  font-family: var(--serif-jp);
  font-size: clamp(20px, 2.4vw, 32px);
  color: #8E1E36;
  animation: labOlapFade 1.1s ease 2.1s both;
}

.lab-hero__olap-title {
  position: relative;
  z-index: 2;
  margin: 0;
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: clamp(46px, 7.2vw, 92px);
  line-height: 1.08;
  letter-spacing: 0.02em;
  color: var(--on-paper);
  opacity: 0;
  animation: labOlapTitle 1.5s cubic-bezier(0.16, 1, 0.3, 1) 3.3s both;
}

.lab-hero__olap-lede {
  max-width: 620px;
  margin: clamp(10px, 2vw, 22px) 0 0;
  color: var(--on-paper-mute);
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 2;
  opacity: 0;
  animation: labOlapFade 1s ease 3.8s both;
}

@keyframes labOlapDriftR {
  from { opacity: 0; transform: translateX(-34%) scale(0.88); }
  to { opacity: 0.96; transform: translateX(-15%) scale(1); }
}

@keyframes labOlapDriftL {
  from { opacity: 0; transform: translateX(34%) scale(0.88); }
  to { opacity: 0.96; transform: translateX(15%) scale(1); }
}

@keyframes labOlapTitle {
  from { opacity: 0; transform: translateY(20px) scale(0.975); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes labOlapFade {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .lab-hero__olap-light--a { opacity: 0.96; transform: translateX(-15%); animation: none; }
  .lab-hero__olap-light--b { opacity: 0.96; transform: translateX(15%); animation: none; }
  .lab-hero__olap-eyebrow,
  .lab-hero__olap-lbl,
  .lab-hero__olap-title,
  .lab-hero__olap-lede { opacity: 1; transform: none; animation: none; }
}

/* トップ(index)のヒーローMV: 生成AI x 法務 マストヘッド(霧青帯・入場アニメ) */
.lab-hero--mv {
  background: linear-gradient(166deg, #D6E1EF 0%, #E1E8F2 45%, #E7EDF5 100%);
}
@keyframes lab-scroll-cue {
  0%, 100% { transform: scaleX(0.55); opacity: 0.45; }
  50% { transform: scaleX(1); opacity: 1; }
}
@keyframes lab-section-rise {
  from { opacity: 0.001; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes lab-card-rise {
  from { opacity: 0.001; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .lab-feature-scroll-hint span::before { animation: none; }
}

.lab-media-intro {
  padding-right: var(--gutter);
  padding-left: var(--gutter);
  border-bottom: 1px solid var(--paper-line);
}

.lab-media-intro__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.34fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: end;
  padding-top: clamp(44px, 6vw, 72px);
  padding-bottom: clamp(44px, 6vw, 72px);
}

.lab-media-intro__copy h2 {
  margin: 12px 0 0;
  font-family: var(--serif-jp);
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: 0;
}

.lab-media-intro__copy p {
  max-width: 860px;
  margin: 22px 0 0;
  color: var(--on-paper-mute);
  font-size: 16px;
  line-height: 1.95;
  /* 和文の改行最適化: 文節で折り、「です」等の泣き別れ・行末1字孤立を避ける */
  word-break: auto-phrase;
  text-wrap: pretty;
}

.lab-media-intro__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-self: end;
  width: min(100%, 300px);
}

.lab-media-intro__actions .btn {
  width: 100%;
  justify-content: center;
}

.lab-media-intro__map {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(220px, 0.28fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
  margin-top: clamp(8px, 2vw, 18px);
  padding-top: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--paper-line);
}

.lab-media-intro__map-head h3 {
  margin: 0;
  font-family: var(--serif-jp);
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.35;
  font-weight: 500;
  letter-spacing: 0;
}

.lab-media-intro__map-head p {
  margin: 14px 0 0;
  color: var(--on-paper-mute);
  font-size: 15px;
  line-height: 1.8;
}

.lab-media-intro__map-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.lab-media-intro__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  min-height: 100%;
  padding: 16px;
  border: 1px solid var(--paper-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.42);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.lab-media-intro__item:hover {
  border-color: var(--chrome);
  background: var(--paper-2);
  color: var(--chrome);
  transform: translateY(-1px);
}

.lab-media-intro__index,
.lab-media-intro__arrow {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--chrome);
}

.lab-media-intro__item-copy {
  display: grid;
  gap: 8px;
}

.lab-media-intro__item-copy strong {
  color: var(--on-paper);
  font-size: 15px;
  line-height: 1.55;
  font-weight: 600;
}

.lab-media-intro__item:hover .lab-media-intro__item-copy strong {
  color: var(--chrome);
}

.lab-media-intro__item-copy span {
  color: var(--on-paper);
  font-size: 14px;
  line-height: 1.65;
}

.lab-media-intro__arrow {
  align-self: center;
}

.lab-editorial-entry {
  padding-right: var(--gutter);
  padding-left: var(--gutter);
  border-top: 1px solid rgba(17, 19, 18, 0.08);
  border-bottom: 1px solid var(--paper-line);
  background:
    linear-gradient(135deg, rgba(244, 239, 232, 0.96) 0%, rgba(226, 238, 238, 0.96) 52%, rgba(247, 244, 239, 0.98) 100%);
}

.lab-editorial-entry__inner {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1fr);
  gap: clamp(18px, 3vw, 34px);
  align-items: center;
  padding-top: clamp(28px, 4vw, 52px);
  padding-bottom: clamp(28px, 4vw, 52px);
}

.lab-editorial-entry__copy {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.lab-editorial-entry__copy h2 {
  margin: 0;
  color: var(--on-paper);
  font-family: var(--serif-jp);
  font-size: clamp(26px, 3.4vw, 42px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: 0;
}

.lab-editorial-entry__copy p {
  max-width: 820px;
  margin: 0;
  color: var(--on-paper-mute);
  font-size: 15.5px;
  line-height: 1.85;
}

.lab-editorial-entry__routes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.lab-editorial-entry__route {
  display: grid;
  gap: 10px;
  min-height: 190px;
  padding: 18px;
  border: 1px solid rgba(17, 19, 18, 0.14);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.48);
  color: inherit;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.lab-editorial-entry__route:hover {
  border-color: rgba(174, 133, 62, 0.46);
  background: rgba(255, 255, 255, 0.72);
  transform: translateY(-2px);
}

.lab-editorial-entry__route span {
  color: var(--chrome);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.35;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-editorial-entry__route strong {
  margin: 0;
  font-family: var(--serif-jp);
  font-size: 20px;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: 0;
}

.lab-editorial-entry__route em {
  color: var(--on-paper-mute);
  font-size: 14px;
  font-style: normal;
  line-height: 1.7;
}

.lab-download-entry {
  padding-right: var(--gutter);
  padding-left: var(--gutter);
  border-bottom: 1px solid var(--paper-line);
  background: rgba(255, 255, 255, 0.74);
}

.lab-download-entry__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(18px, 3vw, 32px);
  align-items: center;
  padding-top: 24px;
  padding-bottom: 24px;
}

.lab-download-entry__copy {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.lab-download-entry__copy h2 {
  margin: 0;
  color: var(--on-paper);
  font-family: var(--serif-jp);
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 500;
  line-height: 1.32;
  letter-spacing: 0;
}

.lab-download-entry__copy p {
  max-width: 820px;
  margin: 0;
  color: var(--on-paper-mute);
  font-size: 14.5px;
  line-height: 1.8;
}

.lab-download-entry__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.lab-download-entry__button:hover {
  border-color: var(--accent);
  background: var(--accent-deep);
  transform: translateY(-1px);
}

[data-prompt-download-link] {
  margin-top: 12px;
}

.lab-content {
  padding: clamp(56px, 7vw, 96px) var(--gutter);
}

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .lab-media-intro,
    .lab-feature-section,
    .lab-section {
      animation: lab-section-rise both;
      animation-timeline: view();
      animation-range: entry 0% cover 24%;
    }

    .lab-feature-card {
      animation: lab-card-rise 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
      animation-delay: calc(var(--feature-index, 0) * 70ms);
    }

    /* The prompt library is by far the tallest lab section (~7600px). The shared
       `cover 24%` end scales with element height, so here it resolves to ~2000px
       of scroll — the white fade-in veil starts far sooner and lingers far longer
       than on the shorter sections. Pin this section's reveal to a fixed,
       height-independent distance so it stays as subtle as the rest. */
  }
}

.lab-feature-section,
.lab-section {
  padding: clamp(44px, 6vw, 80px) 0;
  border-bottom: 1px solid var(--paper-line);
}

.lab-section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(260px, 0.46fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: end;
  margin-bottom: 36px;
}

.lab-section-head h2 {
  grid-column: 1;
  margin: 12px 0 0;
  font-family: var(--serif-jp);
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.28;
  font-weight: 500;
  letter-spacing: 0;
}

.lab-section-head p {
  grid-column: 2;
  grid-row: 1 / span 2;
  margin: 0;
  color: var(--on-paper-mute);
  font-size: 15px;
  line-height: 1.9;
}

.lab-feature-rail {
  position: relative;
  margin-right: calc(var(--gutter) * -1);
}

.lab-feature-rail::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 26px;
  width: min(120px, 18vw);
  pointer-events: none;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), var(--paper));
}

.lab-feature-controls {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 0 var(--gutter) 16px 0;
}

.lab-feature-control {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--paper-line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--on-paper);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.lab-feature-control:hover,
.lab-feature-control:focus-visible {
  border-color: rgba(174, 133, 62, 0.58);
  background: var(--paper);
  box-shadow: 0 14px 28px rgba(16, 24, 40, 0.1);
  transform: translateY(-1px);
}

.lab-feature-control:focus-visible {
  outline: 2px solid rgba(174, 133, 62, 0.38);
  outline-offset: 3px;
}

.lab-feature-track {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  padding: 0 var(--gutter) 26px 0;
  scroll-behavior: smooth;
  scroll-padding-left: 2px;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--paper-line-strong) transparent;
  scrollbar-width: thin;
}

.lab-feature-card {
  display: flex;
  flex-direction: column;
  flex: 0 0 clamp(340px, 48vw, 640px);
  gap: 28px;
  min-height: 520px;
  padding: clamp(32px, 5vw, 56px);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-lg);
  background: var(--paper-2);
  color: inherit;
  text-decoration: none;
  scroll-snap-align: start;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.lab-feature-card:hover {
  border-color: rgba(174, 133, 62, 0.45);
  box-shadow: 0 22px 46px rgba(16, 24, 40, 0.08);
  transform: translateY(-4px);
}

.lab-feature-card[data-active] {
  border-color: rgba(174, 133, 62, 0.46);
  background: #fff;
}

.lab-feature-card h3 {
  margin: 0;
  font-family: var(--serif-jp);
  font-size: clamp(24px, 2.6vw, 36px);
  line-height: 1.38;
  font-weight: 500;
  letter-spacing: 0;
}

.lab-feature-card p {
  max-width: 740px;
  margin: 0;
  color: var(--on-paper-mute);
  font-size: 16px;
  line-height: 2;
}

.lab-feature-card__visual,
.lab-card__visual,
.lab-topic-section__visual,
.lab-section-visual {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--paper-line);
  border-radius: 8px;
  background: var(--paper-2);
}

.lab-feature-card__visual {
  aspect-ratio: 16 / 8;
}

.lab-feature-card__visual img,
.lab-card__visual img,
.lab-topic-section__visual img,
.lab-section-visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.lab-section-visual {
  aspect-ratio: 16 / 7;
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.lab-section-visual--ainews {
  width: min(100%, 700px);
  margin-left: auto;
  margin-right: auto;
}

.lab-feature-card:hover .lab-feature-card__visual img,
.lab-card:hover .lab-card__visual img {
  transform: scale(1.035);
}

.lab-feature-card > span:not(.lab-feature-card__visual) {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  color: var(--chrome);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.08em;
}

.lab-feature-card svg,
.lab-card__action svg {
  transition: transform 0.3s ease;
}

.lab-feature-card:hover svg,
.lab-card:hover .lab-card__action svg {
  transform: translateX(4px);
}

.lab-feature-scroll-hint {
  display: flex;
  justify-content: flex-end;
  padding-right: var(--gutter);
  color: var(--on-paper-faint);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.18em;
}

.lab-feature-scroll-hint span {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.lab-feature-scroll-hint span::before {
  content: "";
  display: block;
  width: 54px;
  height: 1px;
  background: currentColor;
  transform-origin: right center;
  animation: lab-scroll-cue 1.8s ease-in-out infinite;
}

.lab-card__meta,
.lab-card__action {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--on-paper-mute);
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

[data-collapsible-item][hidden] {
  display: none !important;
}

.lab-list-more[hidden] {
  display: none !important;
}

.lab-list-more {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--chrome);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.45;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.lab-list-more:hover {
  border-color: var(--chrome);
  background: var(--paper-2);
  transform: translateY(-1px);
}

.lab-list-more:focus-visible {
  outline: 2px solid var(--chrome);
  outline-offset: 3px;
}

.lab-list-more--grid,
.lab-list-more--news {
  justify-self: center;
  min-width: 220px;
  margin: 18px auto 0;
}

.lab-card {
  min-height: 100%;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-lg);
  color: inherit;
  text-decoration: none;
  background: var(--paper);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.lab-card:hover {
  background: var(--paper-2);
  border-color: rgba(174, 133, 62, 0.45);
  transform: translateY(-2px);
}

.lab-card h3 {
  margin: 0;
  font-family: var(--serif-jp);
  font-size: 21px;
  line-height: 1.5;
  font-weight: 500;
  letter-spacing: 0;
}

.lab-card p {
  margin: 0;
  color: var(--on-paper-mute);
  font-size: 15px;
  line-height: 1.85;
}

.lab-topic-sections {
  display: grid;
  gap: clamp(34px, 6vw, 72px);
}

.lab-topic-section {
  scroll-margin-top: 110px;
}

.lab-topic-section + .lab-topic-section {
  padding-top: clamp(34px, 5vw, 64px);
  border-top: 1px solid var(--paper-line);
}

.lab-topic-section__body {
  display: grid;
  grid-template-columns: minmax(230px, 280px) minmax(0, 1fr);
  gap: clamp(20px, 4vw, 36px);
  align-items: start;
}

.lab-topic-section__summary,
.lab-topic-section__list {
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-lg);
  background: var(--paper);
}

.lab-topic-section__summary {
  display: grid;
  gap: 16px;
  padding: 20px;
  background: var(--paper-2);
}

.lab-topic-section__visual {
  aspect-ratio: 16 / 10;
}

.lab-topic-section__count {
  color: var(--chrome);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-topic-section__actions {
  display: grid;
  gap: 8px;
}

.lab-topic-section__actions a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--on-paper);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.45;
  text-align: center;
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.lab-topic-section__actions a:hover {
  border-color: rgba(174, 133, 62, 0.5);
  background: rgba(174, 133, 62, 0.08);
  color: var(--chrome);
}

.lab-topic-section__lists {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.lab-topic-section__list {
  overflow: hidden;
}

.lab-topic-section__list h3 {
  margin: 0;
  padding: 16px 18px;
  border-bottom: 1px solid var(--paper-line);
  color: var(--chrome);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.45;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-topic-section__items {
  display: grid;
}

.lab-topic-section__list > .lab-list-more {
  width: calc(100% - 36px);
  margin: 14px 18px 18px;
}

.lab-topic-section__item {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--paper-line);
  color: inherit;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.lab-topic-section__item:last-child {
  border-bottom: 0;
}

.lab-topic-section__item:hover {
  background: var(--paper-2);
  color: var(--chrome);
}

.lab-topic-section__item-meta {
  color: var(--on-paper-mute);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.45;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.lab-topic-section__item strong {
  font-size: 15px;
  line-height: 1.65;
  font-weight: 600;
}

.lab-topic-section__empty {
  margin: 0;
  padding: 18px;
  color: var(--on-paper-mute);
  font-size: 14px;
  line-height: 1.75;
}

.lab-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 30px 28px;
}

.lab-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  text-transform: uppercase;
}

.lab-card__cat {
  color: var(--chrome);
}

.lab-card__cat[data-cat="Prompt"] {
  color: var(--accent-deep, #A8364A);
}

.lab-card__topics,
.lab-feature-card__topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lab-card__topics {
  margin-top: -4px;
}

.lab-feature-card__topics {
  margin-top: -12px;
}

.lab-card__topics span,
.lab-feature-card__topics span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 9px;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-xs);
  color: var(--on-paper-mute);
  background: rgba(255, 255, 255, 0.32);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.06em;
}

.lab-card__action {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  color: var(--chrome);
}

/* 生成AIニュース — 出典付きの要約カード */
.lab-ainews-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 0.92fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.lab-section-head--ainews {
  display: block;
  margin-bottom: 0;
}

.lab-section-head--ainews h2,
.lab-section-head--ainews p {
  grid-column: auto;
  grid-row: auto;
}

.lab-section-head--ainews p {
  max-width: 620px;
  margin-top: 22px;
}

.lab-ainews-intro .lab-section-visual--ainews {
  width: 100%;
  margin: 0;
  aspect-ratio: 16 / 9;
}

.lab-ainews-rail {
  position: relative;
  margin-right: calc(var(--gutter) * -1);
}

.lab-ainews-rail::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 28px;
  width: min(116px, 18vw);
  pointer-events: none;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), var(--paper));
}

.lab-ainews-controls {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 0 var(--gutter) 16px 0;
}

.lab-ainews-control:hover,
.lab-ainews-control:focus-visible {
  border-color: rgba(174, 133, 62, 0.58);
}

.lab-ainews-control:focus-visible {
  outline-color: rgba(174, 133, 62, 0.38);
}

.lab-ainews-track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 0 var(--gutter) 28px 0;
  scroll-behavior: smooth;
  scroll-padding-left: 2px;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--paper-line-strong) transparent;
  scrollbar-width: thin;
}

.lab-ainews-item {
  display: grid;
  flex: 0 0 clamp(340px, 37vw, 540px);
  gap: 12px;
  align-content: start;
  min-height: 430px;
  padding: 24px 24px 22px;
  background: var(--paper);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-lg);
  scroll-snap-align: start;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.lab-ainews-item:hover {
  border-color: rgba(174, 133, 62, 0.45);
  background: var(--paper-2);
  box-shadow: 0 18px 38px rgba(16, 24, 40, 0.08);
  transform: translateY(-2px);
}

.lab-ainews-item[data-active] {
  background: #fff;
  border-color: rgba(174, 133, 62, 0.46);
}

.lab-ainews-item__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.lab-ainews-item__date {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--chrome);
}

.lab-ainews-item__tag {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 3px 11px;
  border-radius: 999px;
  background: var(--paper-2);
  border: 1px solid var(--paper-line);
  color: var(--chrome-soft);
}

.lab-ainews-item__title {
  margin: 0;
  font-family: var(--serif-jp);
  font-size: 16.5px;
  line-height: 1.5;
  font-weight: 600;
}

.lab-ainews-item__title a {
  color: inherit;
  text-decoration: none;
}

.lab-ainews-item__title a:hover,
.lab-ainews-item__title a:focus-visible {
  color: var(--accent-deep);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.lab-ainews-item__summary {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--on-paper-mute);
}

.lab-ainews-item__actions {
  display: grid;
  gap: 9px;
  align-content: end;
  margin-top: auto;
  padding-top: 6px;
}

.lab-ainews-item__detail,
.lab-ainews-item__source {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  width: fit-content;
  font-size: 14px;
  color: var(--on-paper-mute);
  text-decoration: none;
}

.lab-ainews-item__detail {
  color: var(--accent-deep);
  font-weight: 600;
}

.lab-ainews-item__detail:hover,
.lab-ainews-item__source:hover {
  color: var(--chrome);
  text-decoration: underline;
}

.lab-ainews-item__detail svg,
.lab-ainews-item__source svg {
  opacity: 0.7;
}

.lab-ainews-more {
  margin-top: clamp(20px, 2.4vw, 28px);
}

.lab-ainews-more a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--chrome);
  text-decoration: none;
}

.lab-ainews-more a:hover {
  text-decoration: underline;
}

/* 生成AIニュース個別解説ページ */
.article-page__layout--news-detail {
  display: block;
  width: min(860px, 100%);
  margin: 0 auto;
}

.ai-news-detail__eyebrow {
  display: block;
  margin-bottom: 20px;
}

.ai-news-detail__summary {
  margin: 0 0 30px;
  padding: 22px 24px;
  border-left: 3px solid var(--accent-soft);
  background: var(--paper-2);
  color: var(--on-paper-mute);
  font-size: 17px;
  line-height: 1.95;
}

.ai-news-detail__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0 0 34px;
  border-top: 1px solid var(--paper-line);
  border-left: 1px solid var(--paper-line);
}

.ai-news-detail__meta > div {
  min-width: 0;
  padding: 15px 16px;
  border-right: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
}

.ai-news-detail__meta dt {
  margin-bottom: 6px;
  color: var(--on-paper-faint);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
}

.ai-news-detail__meta dd {
  margin: 0;
  color: var(--on-paper);
  font-size: 15px;
  line-height: 1.6;
}

.ai-news-detail__meta a {
  color: inherit;
  text-underline-offset: 0.18em;
}

.ai-news-detail__status {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 3px 10px;
  border: 1px solid rgba(35, 99, 79, 0.28);
  border-radius: 999px;
  background: rgba(35, 99, 79, 0.07);
  color: #23634f;
  font-size: 14px;
  font-weight: 600;
}

.ai-news-detail__sources {
  display: grid;
  gap: 22px;
  margin: 0 0 36px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--paper-line-strong);
  border-radius: var(--radius-lg);
  background: var(--paper-2);
}

.ai-news-detail__sources h2 {
  margin: 6px 0 8px;
  font-family: var(--serif-jp);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  line-height: 1.35;
}

.ai-news-detail__sources p {
  margin: 0;
  color: var(--on-paper-mute);
  font-size: 15px;
  line-height: 1.8;
}

.ai-news-detail__sources ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ai-news-detail__sources a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 5px 16px;
  padding: 14px 16px;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--on-paper);
  text-decoration: none;
}

.ai-news-detail__sources a:hover,
.ai-news-detail__sources a:focus-visible {
  border-color: rgba(174, 133, 62, 0.48);
  box-shadow: 0 10px 24px rgba(16, 24, 40, 0.06);
}

.ai-news-detail__sources a span {
  grid-column: 1;
  color: var(--accent-deep);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.45;
}

.ai-news-detail__sources a strong {
  grid-column: 1;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
}

.ai-news-detail__sources a svg {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
}

.ai-news-detail__related-news {
  margin-top: clamp(44px, 7vw, 72px);
}

.ai-news-detail__related-news-list {
  display: grid;
  gap: 14px;
}

.ai-news-detail__related-news-list article {
  padding: 22px 24px;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  background: var(--paper-2);
}

.ai-news-detail__related-news-list article > span {
  color: var(--on-paper-faint);
  font-family: var(--mono);
  font-size: 14px;
}

.ai-news-detail__related-news-list h3 {
  margin: 8px 0;
  font-family: var(--serif-jp);
  font-size: 19px;
  line-height: 1.55;
}

.ai-news-detail__related-news-list p {
  margin: 0 0 12px;
  color: var(--on-paper-mute);
  font-size: 15px;
  line-height: 1.8;
}

.ai-news-detail__related-news-list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-deep);
  font-size: 14px;
  font-weight: 600;
  text-underline-offset: 0.18em;
}

@media (max-width: 720px) {
  .ai-news-detail__meta {
    grid-template-columns: 1fr 1fr;
  }

  .ai-news-detail__summary,
  .ai-news-detail__sources,
  .ai-news-detail__related-news-list article {
    padding: 18px;
  }
}

@media (max-width: 480px) {
  .ai-news-detail__meta {
    grid-template-columns: 1fr;
  }
}

.lab-empty {
  padding: 32px;
  margin: 0;
  color: var(--on-paper-mute);
  font-size: 15px;
  line-height: 1.8;
}

/* 実測で日本語1849px・英語1958pxが必要(項目間16px・グループ間24px・スクロールバー15px込み) */
@media (max-width: 1980px) {
  html[lang="en"] .lab-nav .nav__items {
    display: none;
  }

  html[lang="en"] .lab-nav .nav__menu {
    display: block;
  }

  .lab-nav .nav__menu {
    margin-left: 0;
  }

  html[lang="en"] .lab-nav > .lp-nav__lang {
    margin-left: auto;
  }
}

@media (max-width: 1880px) {
  .lab-nav .nav__items {
    display: none;
  }

  .lab-nav .nav__menu {
    display: block;
  }

  .lab-nav > .lp-nav__lang {
    margin-left: auto;
  }
}

@media (max-width: 1120px) {
  .lab-media-intro__inner,
  .lab-editorial-entry__inner,
  .lab-download-entry__inner,
  .lab-ainews-intro,
  .lab-section-head,
  .lab-topic-section__body,
  .lab-law-teaser__grid {
    grid-template-columns: 1fr;
  }

  .lab-section-head {
    gap: 16px;
    align-items: start;
  }

  .lab-section-head p {
    grid-column: auto;
    grid-row: auto;
    max-width: 760px;
  }

  .lab-media-intro__actions,
  .lab-download-entry__button {
    justify-self: start;
  }

  .lab-editorial-entry__routes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .lab-topic-section__summary {
    grid-template-columns: minmax(180px, 280px) minmax(0, 1fr);
    grid-template-areas:
      "visual count"
      "visual actions";
    align-items: center;
  }

  .lab-topic-section__visual {
    grid-area: visual;
  }

  .lab-topic-section__count {
    grid-area: count;
    align-self: end;
  }

  .lab-topic-section__actions {
    grid-area: actions;
    align-self: start;
    justify-self: start;
    width: min(100%, 360px);
  }

  .lab-ainews-intro .lab-section-visual--ainews,
  .lab-law-teaser__body .lab-section-visual {
    width: min(100%, 760px);
    margin-left: 0;
    margin-right: 0;
  }
}

@media (max-width: 980px) {
  .lab-mega-nav__panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lab-hero__inner,
  .lab-media-intro__inner,
  .lab-ainews-intro,
  .lab-section-head,
  .lab-topic-section__body {
    grid-template-columns: 1fr;
  }

  .lab-section-head p {
    grid-column: auto;
    grid-row: auto;
  }

  .lab-media-intro__actions {
    justify-self: start;
    width: min(100%, 360px);
  }

  .lab-editorial-entry__routes {
    grid-template-columns: 1fr;
  }

  .lab-download-entry__button {
    width: min(100%, 360px);
    white-space: normal;
  }

  .lab-media-intro__map {
    grid-template-columns: 1fr;
  }

  .lab-media-intro__map-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lab-feature-card {
    flex-basis: min(76vw, 560px);
    min-height: 500px;
  }

  .lab-ainews-item {
    flex-basis: min(76vw, 500px);
  }

  .lab-topic-section__lists,
  .lab-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .lab-mega-nav {
    display: none;
  }

  .lab-hero {
    padding-top: 76px;
    padding-bottom: 44px;
  }

  .lab-hero__inner {
    gap: 24px;
    padding-top: 28px;
  }

  .lab-hero__olap-stage {
    width: min(100%, 300px);
    margin: -14px 0 -22px;
  }

  .lab-hero__olap-title {
    font-size: clamp(36px, 12vw, 48px);
  }

  .lab-hero__olap-lede {
    font-size: 14px;
    line-height: 1.85;
  }

  .lab-hero__copy p {
    white-space: normal;
  }

  .lab-media-intro__inner {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .lab-editorial-entry__inner,
  .lab-download-entry__inner {
    padding-top: 28px;
    padding-bottom: 30px;
  }

  .lab-media-intro__copy h2,
  .lab-download-entry__copy h2,
  .lab-section-head h2 {
    font-size: clamp(26px, 7vw, 34px);
    overflow-wrap: anywhere;
  }

  .lab-media-intro__copy p,
  .lab-download-entry__copy p,
  .lab-section-head p,
  .lab-feature-card p {
    font-size: 14px;
    line-height: 1.85;
  }

  .lab-media-intro__item {
    grid-template-columns: 28px minmax(0, 1fr);
    padding: 14px;
  }

  .lab-media-intro__arrow {
    display: none;
  }

  .lab-hero__visual,
  .lab-feature-card__visual {
    aspect-ratio: 16 / 9;
  }

  .lab-feature-rail,
  .lab-ainews-rail {
    margin-right: 0;
  }

  .lab-feature-controls,
  .lab-ainews-controls {
    justify-content: flex-start;
    padding-right: 0;
  }

  .lab-feature-track,
  .lab-ainews-track {
    gap: 14px;
    padding-right: 0;
  }

  .lab-feature-rail::after,
  .lab-ainews-rail::after {
    display: none;
  }

  .lab-feature-card {
    flex-basis: min(100%, calc(100vw - (var(--gutter) * 2)));
    min-height: auto;
    padding: 22px;
  }

  .lab-ainews-item {
    flex-basis: min(100%, calc(100vw - (var(--gutter) * 2)));
    min-height: auto;
    padding: 20px;
  }

  .lab-feature-scroll-hint,
  .lab-ainews-scroll-hint {
    justify-content: flex-start;
    padding-right: 0;
  }

  .lab-media-intro__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .lab-media-intro__map-grid,
  .lab-topic-section__lists,
  .lab-grid {
    grid-template-columns: 1fr;
  }

  .lab-card {
    padding: 22px;
  }

  .lab-topic-section__summary {
    grid-template-columns: 1fr;
    grid-template-areas:
      "visual"
      "count"
      "actions";
    padding: 18px;
  }

  .lab-topic-section__list h3,
  .lab-topic-section__item {
    padding-right: 16px;
    padding-left: 16px;
  }
}

@media (max-width: 480px) {
  .lab-menu-compact__quick {
    grid-template-columns: 1fr;
  }

  .lab-feature-card,
  .lab-ainews-item {
    flex-basis: calc(100vw - (var(--gutter) * 2));
  }

  .lab-keyword-chip {
    width: 100%;
    justify-content: space-between;
  }
}

/* ============================================================
   Keyword cloud & keyword pages (granular tag layer)
   Shared by the lab index/keyword pages and the article pages
   (article pages also load /legal-lab.css).
   ============================================================ */
.lab-keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.lab-keyword-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 7px 14px;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--on-paper);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  line-height: 1.45;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.lab-keyword-chip:hover {
  border-color: rgba(174, 133, 62, 0.55);
  background: rgba(174, 133, 62, 0.08);
}

.lab-keyword-chip__count {
  font-size: 12px;
  letter-spacing: 0;
  color: var(--on-paper-faint);
}

.lab-section--keywords .lab-keyword-cloud {
  margin-top: 4px;
}

.lab-keyword-strip {
  display: grid;
  grid-template-columns: minmax(180px, 280px) minmax(0, 1fr);
  gap: clamp(20px, 3.5vw, 44px);
  align-items: start;
}

.lab-keyword-strip__body {
  min-width: 0;
}

.lab-keyword-hero__visual {
  aspect-ratio: 16 / 9;
}

.lab-keyword-section__visual,
.lab-keyword-group__visual {
  margin: 18px 0 22px;
}

.lab-keyword-section__visual {
  width: 100%;
  max-width: 280px;
  margin: 4px 0 0;
  aspect-ratio: 4 / 3;
}

.lab-keyword-all,
.lab-keyword-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 24px;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--on-paper);
  text-decoration: none;
}

.lab-keyword-group + .lab-keyword-group {
  margin-top: clamp(26px, 4vw, 42px);
}

.lab-keyword-related {
  margin-top: clamp(32px, 5vw, 56px);
}

@media (max-width: 760px) {
  .lab-keyword-strip {
    grid-template-columns: 1fr;
  }

  .lab-keyword-section__visual {
    max-width: 240px;
  }
}

/* =====================================================================
   法改正カレンダー (/legal-lab/law-changes/) ＋ トップ要約枠
   ===================================================================== */
.lab-law-section { margin-top: clamp(40px, 5vw, 72px); }

.lab-law-groups { display: grid; gap: clamp(28px, 3vw, 40px); }
.lab-law-years { display: grid; gap: clamp(40px, 5vw, 64px); }
.lab-law-year__head { margin-bottom: clamp(16px, 2vw, 24px); padding-bottom: 12px; border-bottom: 1px solid rgba(20, 33, 61, 0.14); }
.lab-law-year__head h3 { font-family: "Shippori Mincho", "Noto Serif JP", serif; font-size: clamp(1.15rem, 1.8vw, 1.45rem); font-weight: 600; letter-spacing: 0.02em; margin: 0 0 8px; }
.lab-law-year__head p { margin: 0; font-size: 0.92rem; line-height: 1.8; color: rgba(20, 33, 61, 0.72); }
.lab-law-year-nav { display: flex; flex-wrap: wrap; gap: 8px 14px; margin: 14px 0 0; font-size: 0.9rem; }
.lab-law-year-nav a { text-decoration: underline; text-underline-offset: 3px; }
/* the year links sit on their own row under the heading (they shared the lead's grid cell and overlapped it) */
.lab-section-head .lab-law-year-nav { grid-column: 1 / -1; grid-row: auto; }

.lab-law-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 2px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--paper-line-strong);
}
.lab-law-group__head h3 {
  margin: 0;
  font-family: var(--serif-jp);
  font-weight: 600;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.2;
  color: var(--on-paper);
}
.lab-law-group__count {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--on-paper-mute);
}

.lab-law-list {
  display: grid;
  border-top: 1px solid var(--paper-line);
}
.lab-law-item {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 36px);
  padding: 22px 4px;
  border-bottom: 1px solid var(--paper-line);
}
.lab-law-item__when { display: grid; gap: 10px; align-content: start; }
.lab-law-item__date {
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: 0;
  color: var(--on-paper);
  font-weight: 500;
}
.lab-law-item__status {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.3;
}
.lab-law-item__status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex: 0 0 auto;
}
.lab-law-item__status[data-s="up"] {
  color: var(--accent-deep);
  background: rgba(178, 39, 67, 0.07);
  border: 1px solid rgba(178, 39, 67, 0.22);
}
.lab-law-item__status[data-s="done"] {
  color: var(--on-paper-faint);
  background: var(--paper-2);
  border: 1px solid var(--paper-line);
}
.lab-law-item__status[data-s="tbd"] {
  color: var(--chrome-soft);
  background: transparent;
  border: 1px dashed var(--paper-line-strong);
}

.lab-law-item__body { display: grid; gap: 8px; align-content: start; }
.lab-law-item__law {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  font-weight: 600;
  color: var(--on-paper);
}
.lab-law-item__sum {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--on-paper-mute);
}
.lab-law-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 2px;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--on-paper-faint);
}
.lab-law-item__field { color: var(--accent-deep); font-weight: 500; }
.lab-law-item__target::before { content: "対象："; color: var(--on-paper-faint); }
html[lang="en"] .lab-law-item__target::before { content: "Applies to: "; }

.lab-law-note {
  margin: clamp(36px, 4vw, 56px) 0 0;
  padding: 22px 24px;
  border: 1px solid var(--paper-line);
  border-left: 3px solid var(--accent-soft);
  border-radius: var(--radius-sm);
  background: var(--paper-2);
}
.lab-law-note p {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--on-paper-mute);
}
.lab-law-note p:last-child { margin-bottom: 0; }
.lab-law-note strong { color: var(--on-paper); font-weight: 600; }

/* トップ要約枠 */
.lab-law-teaser__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
  padding: clamp(40px, 5vw, 72px) 0;
}
.lab-law-teaser__lead { display: grid; gap: 18px; align-content: start; }
.lab-law-teaser__lead h2 {
  margin: 0;
  font-family: var(--serif-jp);
  font-weight: 600;
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.25;
  color: var(--on-paper);
}
.lab-law-teaser__lead p { margin: 0; font-size: 16px; line-height: 1.9; color: var(--on-paper-mute); }
.lab-law-teaser__lead .btn { justify-self: start; }
.lab-law-teaser__body {
  display: grid;
  gap: 16px;
}
.lab-law-teaser__body .lab-section-visual {
  margin: 0;
}
.lab-law-teaser__list {
  display: grid;
  background: var(--paper);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.lab-law-teaser__row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--paper-line);
  text-decoration: none;
  color: inherit;
  transition: background 0.2s ease;
}
.lab-law-teaser__row:last-child { border-bottom: 0; }
.lab-law-teaser__row:hover { background: var(--paper-2); }
.lab-law-teaser__row .d {
  font-family: var(--mono);
  font-size: 14.5px;
  letter-spacing: 0;
  color: var(--accent-deep);
  font-weight: 500;
  padding-top: 2px;
}
.lab-law-teaser__row .t { display: grid; gap: 4px; }
.lab-law-teaser__row .t strong { font-size: 16px; line-height: 1.5; font-weight: 600; }
.lab-law-teaser__row .t span {
  font-family: var(--mono);
  font-size: 14.5px;
  letter-spacing: 0;
  color: var(--on-paper-faint);
}

@media (max-width: 860px) {
  .lab-law-teaser__grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .lab-law-item { grid-template-columns: 1fr; gap: 12px; }
  .lab-law-item__when { grid-template-columns: auto auto; gap: 12px; align-items: center; }
  .lab-law-teaser__row { grid-template-columns: 1fr; gap: 6px; }
}

/* 基本法律プロンプト10本の記事内ダウンロードフォーム */
.lab-prompt-download-form input,
.lab-prompt-download-form select,
.lab-prompt-download-form textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--on-paper);
  font: inherit;
  font-size: 15px;
  letter-spacing: 0;
  padding: 12px 14px;
  outline: none;
}

.lab-prompt-download-form textarea {
  min-height: 120px;
  resize: vertical;
}

.lab-prompt-download-form input:focus,
.lab-prompt-download-form select:focus,
.lab-prompt-download-form textarea:focus {
  border-color: var(--accent-soft);
  box-shadow: 0 0 0 3px rgba(178, 39, 67, 0.1);
}

.lab-prompt-download-form {
  display: grid;
  gap: 14px;
}

.lab-prompt-download-form label {
  display: grid;
  gap: 7px;
  color: var(--on-paper);
  font-size: 14.5px;
}

.lab-prompt-download-form__trap {
  position: absolute;
  left: -10000px;
  width: 1px !important;
  height: 1px !important;
  opacity: 0;
}

.lab-prompt-download-form__check {
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px !important;
  align-items: start;
  color: var(--on-paper-mute) !important;
  font-size: 14px !important;
  line-height: 1.65;
}

.lab-prompt-download-form__check input {
  width: 18px;
  min-height: 18px;
  height: 18px;
  margin-top: 4px;
  padding: 0;
}

.lab-prompt-download-form__check a {
  color: var(--on-paper);
}

.lab-prompt-download-form .btn {
  width: 100%;
  justify-content: center;
  margin-top: 4px;
}

.lab-prompt-download-form .btn[disabled] {
  opacity: 0.55;
  cursor: progress;
}

.lab-prompt-download-form__status {
  min-height: 22px;
  margin: 0;
  color: var(--on-paper-mute);
  font-size: 14px;
  line-height: 1.6;
}

.lab-prompt-download-form__status[data-tone="success"] { color: #23634f; }
.lab-prompt-download-form__status[data-tone="error"] { color: var(--accent-deep); }