:root {
  --ink: #102f35;
  --ink-soft: #36565b;
  --paper: #f5f3ed;
  --paper-deep: #ebe8df;
  --white: #fffef9;
  --line: #d7d8d1;
  --coral: #e96f51;
  --amber: #e7a93d;
  --blue: #4a82b8;
  --mint: #48a38d;
  --violet: #776bb2;
  --pink: #c96f8b;
  --shadow: 0 18px 60px rgb(16 47 53 / 8%);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 104px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif; line-height: 1.8; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img { max-width: 100%; }
.skip-link { position: fixed; z-index: 100; top: 10px; left: 10px; padding: 10px 16px; color: white; background: var(--ink); border-radius: 8px; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.site-header { position: sticky; z-index: 50; top: 0; border-bottom: 1px solid rgb(16 47 53 / 10%); background: rgb(245 243 237 / 94%); backdrop-filter: blur(14px); transform: translateY(0); transition: transform .24s ease, box-shadow .24s ease; will-change: transform; }
.site-header.is-header-hidden { transform: translateY(calc(-100% - 2px)); }
.header-inner { width: min(1180px, calc(100% - 40px)); min-height: 86px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; color: var(--paper); background: var(--ink); border-radius: 50% 50% 48% 52% / 56% 48% 52% 44%; font-family: Georgia, serif; font-size: 1.45rem; font-style: italic; }
.brand strong, .brand small { display: block; line-height: 1.25; }
.brand strong { font-family: Georgia, "Yu Mincho", serif; font-size: 1.02rem; letter-spacing: .02em; }
.brand small { margin-top: 3px; color: var(--ink-soft); font-size: .63rem; font-weight: 700; letter-spacing: .13em; }
.global-nav { display: flex; align-items: center; gap: 18px; }
.global-nav a { position: relative; padding: 8px 0; color: var(--ink-soft); font-size: .78rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
.global-nav a::after { content: ""; position: absolute; right: 0; bottom: 2px; left: 0; height: 2px; background: var(--coral); transform: scaleX(0); transition: transform .2s ease; }
.global-nav a:hover::after, .global-nav a[aria-current="page"]::after { transform: scaleX(1); }
.global-nav a[aria-current="page"] { color: var(--ink); }

.hero { width: min(1240px, calc(100% - 40px)); min-height: 690px; margin: 0 auto; padding: 86px 30px 76px; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(390px, .95fr); align-items: center; gap: 40px; overflow: hidden; }
.eyebrow { margin: 0 0 16px; color: var(--coral); font-family: Arial, sans-serif; font-size: .73rem; font-weight: 800; letter-spacing: .19em; line-height: 1.4; }
.hero h1, .page-hero h1, .field-hero h1 { margin: 0; font-family: Georgia, "Yu Mincho", "Hiragino Mincho ProN", serif; font-weight: 500; letter-spacing: -.035em; line-height: 1.18; }
.hero h1 { font-size: clamp(3rem, 6.4vw, 5.7rem); }
.hero h1 em { color: var(--coral); font-style: normal; }
.hero-topic { margin-bottom: 18px; display: block; color: var(--ink-soft); font-family: "Hiragino Sans", "Yu Gothic", sans-serif; font-size: clamp(1.05rem, 2vw, 1.45rem); font-weight: 800; letter-spacing: .08em; line-height: 1.55; }
.hero-slogan { display: block; }
.hero-lead { max-width: 630px; margin: 28px 0 0; color: var(--ink-soft); font-size: 1.07rem; line-height: 2; }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 52px; padding: 12px 24px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 1px solid var(--ink); border-radius: 999px; font-size: .9rem; font-weight: 800; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgb(16 47 53 / 14%); }
.button-primary { color: var(--white); background: var(--ink); }
.button-ghost { background: transparent; }
.button-light { border-color: var(--white); color: var(--ink); background: var(--white); }
.hero-stats { max-width: 590px; margin: 46px 0 0; padding-top: 23px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.hero-stats div { padding-left: 20px; border-left: 1px solid var(--line); }
.hero-stats div:first-child { padding-left: 0; border-left: 0; }
.hero-stats dt { color: var(--ink-soft); font-size: .72rem; font-weight: 700; }
.hero-stats dd { margin: 3px 0 0; font-family: Georgia, serif; font-size: 2rem; line-height: 1.2; }
.hero-stats dd span { margin-left: 3px; font-family: inherit; font-size: .72rem; }
.home-start-guide, .home-return { max-width: 630px; margin-top: 26px; }
.home-start-guide h2, .home-return-guide h2 { margin: 0; font-family: "Hiragino Sans", "Yu Gothic", sans-serif; font-size: 1rem; letter-spacing: .02em; }
.home-start-guide > div, .home-return-guide > div { margin-top: 10px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.home-start-guide a, .home-return-guide a { min-height: 72px; display: grid; align-content: center; gap: 3px; padding: 11px 12px; color: var(--ink); background: rgb(255 255 255 / 72%); border: 1px solid var(--line); border-radius: 12px; text-decoration: none; }
.home-start-guide a:hover, .home-return-guide a:hover { border-color: var(--coral); transform: translateY(-1px); }
.home-start-guide strong, .home-return-guide strong { font-size: .82rem; }
.home-start-guide span, .home-return-guide span { color: var(--ink-soft); font-size: .68rem; }
.home-return[hidden] { display: none; }
.home-return-card { padding: 18px 20px; display: flex; align-items: center; justify-content: space-between; gap: 18px; color: var(--ink); background: var(--white); border: 1px solid color-mix(in srgb, var(--coral) 42%, var(--line)); border-radius: 16px; box-shadow: 0 12px 30px rgb(16 47 53 / 8%); text-decoration: none; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.home-return-card:hover { border-color: var(--coral); box-shadow: 0 16px 36px rgb(16 47 53 / 12%); transform: translateY(-2px); }
.home-return-card:focus-visible { outline: 3px solid var(--coral); outline-offset: 4px; }
.home-return-card > span:first-child { display: grid; gap: 3px; }
.home-return-card small, .home-return-card [data-home-return-summary] { color: var(--ink-soft); font-size: .74rem; }
.home-return-card strong { font-family: "Hiragino Sans", "Yu Gothic", sans-serif; font-size: 1rem; letter-spacing: .02em; }
.home-return-card__action { flex: 0 0 auto; font-size: .76rem; font-weight: 800; }
.home-return-card__action b { margin-left: 4px; color: var(--coral); font-size: 1rem; }
.home-return-guide { margin-top: 16px; }
.hero-visual { min-width: 0; display: grid; justify-items: center; gap: 18px; }
.hero-map { position: relative; width: min(100%, 540px); aspect-ratio: 1; margin: auto; }
.map-orbit { position: absolute; inset: 12%; border: 1px solid rgb(16 47 53 / 24%); border-radius: 50%; }
.orbit-two { inset: 24%; border-style: dashed; transform: rotate(18deg); }
.map-core { position: absolute; z-index: 2; inset: 35%; display: grid; place-content: center; text-align: center; color: var(--white); background: var(--ink); border-radius: 50%; box-shadow: 0 25px 70px rgb(16 47 53 / 22%); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.map-core::before { content: ""; position: absolute; inset: 8px; border: 1px solid rgb(255 255 255 / 25%); border-radius: 50%; }
.map-core strong { font-family: Georgia, "Yu Mincho", serif; font-size: clamp(1.6rem, 4vw, 2.6rem); font-weight: 500; }
.map-core small { margin-top: 8px; font-family: Arial, sans-serif; font-size: .55rem; letter-spacing: .15em; line-height: 1.5; }
.map-node { position: absolute; z-index: 3; width: 98px; height: 98px; padding: 8px; display: grid; place-items: center; border: 7px solid var(--paper); border-radius: 50%; color: var(--white); font-size: .68rem; font-weight: 800; line-height: 1.35; text-align: center; text-decoration: none; box-shadow: 0 12px 30px rgb(16 47 53 / 14%); transition: transform .2s ease, box-shadow .2s ease; }
.map-core:hover, .map-node:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgb(16 47 53 / 24%); }
.map-core:focus-visible, .map-node:focus-visible { outline: 3px solid var(--ink); outline-offset: 4px; }
.node-a { top: -2%; left: 40%; background: var(--coral); }.node-b { top: 20%; right: -1%; background: var(--amber); }.node-c { right: 5%; bottom: 8%; background: var(--blue); }.node-d { bottom: -2%; left: 30%; background: var(--mint); }.node-e { bottom: 18%; left: -2%; background: var(--violet); }.node-f { top: 14%; left: 1%; background: var(--pink); }

.section { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 100px 0; }
.section-fields { border-top: 1px solid var(--line); }
.section-heading { margin-bottom: 42px; display: grid; grid-template-columns: 1fr minmax(280px, 430px); align-items: end; gap: 50px; }
.section h2, .reading-guide h2, .next-action h2 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 500; letter-spacing: -.025em; line-height: 1.28; }
.section-heading > p { margin: 0; color: var(--ink-soft); font-size: .95rem; }
.field-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.field-card { --accent: var(--coral); min-height: 360px; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); background: var(--white); box-shadow: 0 1px 0 rgb(16 47 53 / 4%); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.field-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.field-card:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.accent-coral { --accent: var(--coral); }.accent-amber { --accent: var(--amber); }.accent-blue { --accent: var(--blue); }.accent-mint { --accent: var(--mint); }.accent-violet { --accent: var(--violet); }.accent-pink { --accent: var(--pink); }
.field-card-head { display: flex; align-items: center; justify-content: space-between; }
.field-card-head span { color: var(--accent); font-family: Georgia, serif; font-size: 1.35rem; font-style: italic; }
.field-card-head p { margin: 0; padding: 3px 10px; border-radius: 999px; color: var(--ink-soft); background: var(--paper); font-size: .72rem; font-weight: 800; }
.field-card h3 { margin: 23px 0 9px; font-family: Georgia, "Yu Mincho", serif; font-size: 1.65rem; font-weight: 500; }
.field-card > p { margin: 0; color: var(--ink-soft); font-size: .88rem; }
.topic-list { margin: 20px 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.topic-list li { padding: 4px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); font-size: .67rem; }
.text-link { margin-top: auto; color: var(--ink); font-size: .84rem; font-weight: 800; text-underline-offset: 5px; text-decoration-color: var(--accent, var(--coral)); }
.text-link span { margin-left: 5px; color: var(--accent, var(--coral)); }
.card-arrow { width: 36px; height: 36px; margin-top: auto; display: grid; place-items: center; align-self: flex-end; border-radius: 50%; color: var(--white); background: var(--accent); font-weight: 800; transition: transform .2s ease; }
.field-card:hover .card-arrow { transform: translateX(4px); }

.reading-guide { width: min(1180px, calc(100% - 40px)); padding: 78px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; color: var(--white); background: var(--ink); border-radius: 34px; }
.reading-guide h2 { color: var(--white); font-size: clamp(2rem, 3.5vw, 3.1rem); }
.guide-copy > p:not(.eyebrow) { color: rgb(255 255 255 / 70%); }
.guide-copy .text-link { display: inline-block; margin-top: 20px; color: var(--white); }
.step-list { margin: 0; padding: 0; list-style: none; }
.step-list li { padding: 23px 0; display: grid; grid-template-columns: 50px 1fr; gap: 17px; border-top: 1px solid rgb(255 255 255 / 15%); }
.step-list li:first-child { border-top: 0; }
.step-list > li > span { color: var(--coral); font-family: Georgia, serif; font-size: 1.15rem; font-style: italic; }
.step-list h3 { margin: 0 0 4px; font-size: 1rem; }
.step-list p { margin: 0; color: rgb(255 255 255 / 66%); font-size: .85rem; }
.editorial-section > div:first-child { max-width: 600px; }
.editorial-grid { margin-top: 42px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.editorial-grid article { min-height: 235px; padding: 26px; background: var(--paper); }
.editorial-grid span { color: var(--coral); font-family: Georgia, serif; font-size: 1.35rem; font-style: italic; }
.editorial-grid h3 { margin: 35px 0 10px; font-size: .98rem; }
.editorial-grid p { margin: 0; color: var(--ink-soft); font-size: .8rem; }
.editorial-note { max-width: 900px; margin: 28px 0 0; padding-left: 18px; border-left: 3px solid var(--coral); color: var(--ink-soft); font-size: .82rem; }
.editorial-note a { text-underline-offset: 4px; }
.section-app { padding-top: 36px; }
.section-heading-single { grid-template-columns: 1fr; }
.app-cta { width: 100%; margin: 0; padding: 55px 64px; display: flex; align-items: center; justify-content: space-between; gap: 40px; color: var(--white); background: #315f66; border-radius: 28px; }
.app-cta .eyebrow { color: #f3cfa8; }
.app-cta h3 { margin: 0; color: var(--white); font-family: Georgia, "Yu Mincho", serif; font-size: clamp(1.8rem, 3.4vw, 3rem); font-weight: 500; letter-spacing: -.025em; line-height: 1.28; }
.app-cta p:not(.eyebrow) { margin: 10px 0 0; color: rgb(255 255 255 / 82%); }
.app-cta.app-cta-link { margin-bottom: 0; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.app-cta-link:hover { transform: translateY(-3px); background: #294f55; box-shadow: 0 18px 48px rgb(16 47 53 / 20%); }
.app-cta-link:focus-visible { outline: 3px solid var(--amber); outline-offset: 4px; }
.cta-arrow { width: 58px; height: 58px; flex: 0 0 58px; display: grid; place-items: center; border: 1px solid rgb(255 255 255 / 34%); border-radius: 50%; color: var(--white); font-size: 1.5rem; transition: transform .2s ease, background .2s ease; }
.app-cta-link:hover .cta-arrow { transform: translateX(4px); background: rgb(255 255 255 / 10%); }

.site-footer { padding: 58px 0 24px; color: var(--white); background: var(--ink); font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif; line-height: 1.8; }
.footer-grid { width: min(1180px, calc(100% - 40px)); margin: 0 auto; display: flex; justify-content: space-between; gap: 40px; }
.footer-brand { margin: 0; color: var(--white); }
.footer-brand small { color: rgb(255 255 255 / 60%); }
.footer-brand:hover { color: var(--white); opacity: .88; }
.footer-copy { margin: 6px 0 0; color: rgb(255 255 255 / 60%); font-size: .78rem; }
.footer-grid nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px 26px; }
.footer-grid nav a { color: rgb(255 255 255 / 78%); font-size: .78rem; text-underline-offset: 5px; }
.copyright { width: min(1180px, calc(100% - 40px)); margin: 50px auto 0; padding-top: 17px; border-top: 1px solid rgb(255 255 255 / 13%); color: rgb(255 255 255 / 45%); }

.subpage { width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding-bottom: 100px; }
.breadcrumb { padding: 24px 0; display: flex; flex-wrap: wrap; gap: 10px; color: var(--ink-soft); font-size: .72rem; }
.breadcrumb a { text-underline-offset: 3px; }
.breadcrumb > span[aria-hidden] { opacity: .45; }
.page-hero { padding: 55px 0 74px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(3rem, 7vw, 5.2rem); }
.page-hero > p:last-child { max-width: 760px; margin: 24px 0 0; color: var(--ink-soft); font-size: 1rem; }
.compact-hero { padding-bottom: 54px; }
.library-notes { margin: 28px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.library-notes article { padding: 22px; display: flex; align-items: center; gap: 17px; background: var(--white); border-left: 1px solid var(--line); }
.library-notes article:first-child { border-left: 0; }
.library-notes strong { color: var(--coral); font-family: Georgia, serif; font-size: 1.2rem; white-space: nowrap; }
.library-notes span { color: var(--ink-soft); font-size: .75rem; line-height: 1.6; }
.no-top-padding { width: 100%; padding-top: 72px; }
.content-note { margin-top: 20px; padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: var(--paper-deep); }
.content-note h2 { margin: 0 0 8px; font-size: 1rem; }
.content-note p { margin: 0; color: var(--ink-soft); font-size: .82rem; }

.field-hero { --accent: var(--coral); padding: 48px 52px; display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 40px; border-radius: 28px; background: var(--white); box-shadow: var(--shadow); }
.field-hero { border-top: 6px solid var(--accent); }
.field-hero.accent-coral { --accent: var(--coral); }
.field-hero.accent-amber { --accent: var(--amber); }
.field-hero.accent-blue { --accent: var(--blue); }
.field-hero.accent-mint { --accent: var(--mint); }
.field-hero.accent-violet { --accent: var(--violet); }
.field-hero.accent-pink { --accent: var(--pink); }
.field-hero h1 { font-size: clamp(2.8rem, 6vw, 4.8rem); }
.field-hero > div > p:last-child { max-width: 720px; margin: 18px 0 0; color: var(--ink-soft); }
.field-hero dl { margin: 0; display: grid; grid-template-columns: repeat(2, auto); gap: 28px; }
.field-hero dl div { min-width: 90px; padding-left: 18px; border-left: 1px solid var(--line); }
.field-hero dt { color: var(--ink-soft); font-size: .68rem; font-weight: 700; }
.field-hero dd { margin: 4px 0 0; font-family: Georgia, serif; font-size: 1.28rem; }
.pagination { margin: 34px 0; display: grid; grid-template-columns: 105px 1fr 105px; align-items: center; gap: 18px; }
.page-direction { font-size: .76rem; font-weight: 800; text-decoration: none; }
.page-direction:last-child { text-align: right; }
.page-direction.disabled { color: var(--line); }
.page-numbers { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.page-numbers a, .page-numbers span { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; font-size: .72rem; text-decoration: none; }
.page-numbers span[aria-current] { border-color: var(--ink); color: var(--white); background: var(--ink); }
.page-numbers .page-ellipsis { width: 22px; border-color: transparent; }
.question-list { display: grid; gap: 18px; }
.question-card { padding: 34px 38px 0; border: 1px solid var(--line); border-radius: 20px; background: var(--white); overflow: hidden; }
.question-meta { display: flex; justify-content: space-between; gap: 20px; color: var(--ink-soft); font-family: Arial, sans-serif; font-size: .64rem; font-weight: 800; letter-spacing: .12em; }
.question-meta a { color: var(--ink-soft); letter-spacing: 0; text-underline-offset: 3px; }
.question-card > h2 { margin: 20px 0 22px; font-size: 1.08rem; line-height: 1.85; }
.choice-list { margin: 0 0 28px; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; list-style: none; counter-reset: none; }
.choice-list li { min-height: 58px; padding: 11px 14px; display: grid; grid-template-columns: 28px 1fr; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 10px; background: #fbfaf6; }
.choice-list li > span { width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; font-family: Arial, sans-serif; font-size: .67rem; font-weight: 800; }
.choice-list p { margin: 0; font-size: .8rem; line-height: 1.65; }
.answer-panel { margin: 0 -38px; border-top: 1px solid var(--line); background: var(--paper); }
.answer-panel summary { min-height: 58px; padding: 14px 38px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--ink); cursor: pointer; font-size: .79rem; font-weight: 800; list-style: none; }
.answer-panel summary::-webkit-details-marker { display: none; }
.detail-icon { position: relative; width: 22px; height: 22px; border: 1px solid var(--ink); border-radius: 50%; }
.detail-icon::before, .detail-icon::after { content: ""; position: absolute; top: 10px; left: 6px; width: 8px; height: 1px; background: var(--ink); }
.detail-icon::after { transform: rotate(90deg); transition: transform .2s ease; }
.answer-panel[open] .detail-icon::after { transform: rotate(0); }
.answer-content { padding: 0 38px 32px; }
.correct-answer { margin: 0; padding: 18px 0; display: grid; grid-template-columns: 60px 1fr; gap: 14px; border-top: 1px solid var(--line); }
.correct-answer span, .explanation h3, .source-row dt, .tag-row > span { color: var(--coral); font-size: .69rem; font-weight: 800; letter-spacing: .06em; }
.correct-answer strong { font-size: .88rem; }
.explanation { padding: 20px 22px; border-left: 3px solid var(--coral); background: var(--white); }
.explanation h3 { margin: 0 0 7px; }
.explanation p { margin: 0; color: var(--ink-soft); font-size: .84rem; }
.source-row { margin: 20px 0 0; display: grid; grid-template-columns: 60px 1fr; gap: 14px; }
.source-row dd { margin: 0; color: var(--ink-soft); font-size: .75rem; }
.tag-row { margin-top: 14px; display: grid; grid-template-columns: 60px 1fr; gap: 14px; }
.tag-row ul { margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 5px; list-style: none; }
.tag-row li, .video-keywords li { border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); font-size: .65rem; overflow: hidden; }
.tag-link, .keyword-link { padding: 3px 9px; display: block; color: inherit; text-decoration: none; }
.tag-link:hover, .keyword-link:hover { color: var(--ink); background: var(--paper-deep); }
.tag-link:focus-visible, .keyword-link:focus-visible { outline: 2px solid var(--coral); outline-offset: -1px; }
.next-action { margin-top: 64px; padding: 38px 44px; display: flex; align-items: center; justify-content: space-between; gap: 30px; border: 1px solid var(--line); border-radius: 22px; background: var(--white); }
.next-action h2 { font-size: 1.8rem; }
.next-action p:not(.eyebrow) { margin: 8px 0 0; color: var(--ink-soft); font-size: .82rem; }

.prose-page { max-width: 1000px; }
.prose-content { max-width: 790px; margin: 60px auto 0; }
.prose-content section { padding: 0 0 48px; }
.prose-content h2 { margin: 0 0 18px; padding-bottom: 9px; border-bottom: 1px solid var(--line); font-family: Georgia, "Yu Mincho", serif; font-size: 1.65rem; font-weight: 500; }
.prose-content p, .prose-content li { color: var(--ink-soft); font-size: .9rem; }
.prose-content a { text-decoration-color: var(--coral); text-underline-offset: 5px; }
.prose-content ol { padding-left: 1.5em; }
.prose-content ul { padding-left: 1.25em; }
.prose-content h3 { margin: 30px 0 8px; font-size: 1.08rem; }
.prose-content table { width: 100%; border-collapse: collapse; background: var(--white); }
.prose-content .table-wrap { max-width: 100%; overflow-x: auto; }
.prose-content th, .prose-content td { padding: 13px 15px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose-content th { background: var(--paper-deep); font-size: .8rem; }
.prose-content td { color: var(--ink-soft); font-size: .82rem; }
.study-summary, .table-of-contents { margin-bottom: 42px; padding: 28px 30px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); }
.study-summary strong { color: var(--ink); }
.table-of-contents h2 { border-bottom: 0; font-size: 1.15rem; }
.study-plan { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.study-plan article { padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.study-plan h3 { margin-top: 0; }
.author-note { padding: 24px; border-left: 4px solid var(--coral); background: var(--paper-deep); }
.inline-button { padding: 10px 18px; display: inline-block; border: 1px solid var(--ink); border-radius: 999px; color: var(--ink); font-weight: 800; text-decoration: none; }
.small-note { padding: 15px; background: var(--paper-deep); font-size: .77rem !important; }
.key-advice { margin: 26px 0 0; padding: 22px 24px; border-left: 4px solid #5f8e86; background: #e8efec; }
.key-advice strong { color: var(--ink); }
.key-advice p { margin: 7px 0 0; }

.resource-section { padding-top: 70px; }
.resource-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.resource-card { min-height: 300px; padding: 38px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 24px; color: var(--ink); background: var(--white); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.resource-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.resource-card:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.resource-card h3 { margin: 6px 0 14px; font-family: Georgia, "Yu Mincho", serif; font-size: 1.8rem; font-weight: 500; }
.resource-card > p:not(.eyebrow) { margin: 0; color: var(--ink-soft); font-size: .9rem; }
.resource-card > span { margin-top: auto; font-size: .84rem; font-weight: 800; }
.resource-video { color: var(--white); background: var(--ink); }
.resource-video .eyebrow { color: #f3cfa8; }
.resource-video > p:not(.eyebrow) { color: rgb(255 255 255 / 68%); }

.video-library-section { border-top: 1px solid var(--line); }
.content-card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.compact-field-card { min-height: 390px; padding: 25px; }
.compact-field-card h3 { font-size: 1.35rem; }
.compact-field-card > p { font-size: .82rem; }
.compact-field-card > p strong { color: var(--ink); }
.section-more-link { margin: 28px 0 0; text-align: right; }
.lecture-note-section { border-top: 1px solid var(--line); }
.lecture-field-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.lecture-field-card { min-height: 380px; padding: 24px; }
.lecture-field-card h3 { font-size: 1.35rem; }
.lecture-field-card > p { font-size: .8rem; }
.lecture-field-card .topic-list { grid-template-columns: 1fr; }
.study-guide-promo { padding-top: 30px; }
.study-guide-card { padding: 52px 58px; display: flex; align-items: center; justify-content: space-between; gap: 44px; border: 1px solid #bac8c5; border-radius: 28px; color: var(--ink); background: #e8efec; text-decoration: none; box-shadow: 0 1px 0 rgb(16 47 53 / 4%); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.study-guide-card:hover { transform: translateY(-3px); border-color: #8aa29d; box-shadow: var(--shadow); }
.study-guide-card:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.study-guide-card > div { max-width: 820px; }
.study-guide-card h2 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 500; letter-spacing: -.025em; }
.study-guide-card p:not(.eyebrow) { margin: 12px 0 0; color: var(--ink-soft); }
.study-guide-card .eyebrow { color: #4d746e; }
.study-guide-card .cta-arrow { border-color: rgb(16 47 53 / 28%); color: var(--ink); background: rgb(255 255 255 / 44%); }
.study-guide-card:hover .cta-arrow { transform: translateX(4px); background: rgb(255 255 255 / 70%); }
.book-showcase-section { padding-top: 70px; border-top: 1px solid var(--line); }
.book-showcase-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
.book-showcase-card { overflow: hidden; display: grid; grid-template-columns: 116px minmax(0, 1fr); align-items: start; border: 1px solid var(--line); border-radius: 20px; color: var(--ink); background: var(--white); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.book-showcase-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.book-showcase-card:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.book-showcase-card img { width: 116px; height: auto; display: block; background: var(--paper-deep); }
.book-showcase-card > div { min-height: 185px; padding: 20px 24px; display: flex; flex-direction: column; }
.book-showcase-card .book-showcase-meta { margin: 0; color: var(--coral); font-size: .65rem; font-weight: 800; letter-spacing: .11em; }
.book-showcase-card h3 { margin: 6px 0 7px; font-family: Georgia, "Yu Mincho", serif; font-size: 1.17rem; font-weight: 500; line-height: 1.45; }
.book-showcase-card .book-showcase-description { max-width: 760px; margin: 0 0 12px; color: var(--ink-soft); font-size: .78rem; line-height: 1.75; }
.book-showcase-card span { margin-top: auto; font-size: .75rem; font-weight: 800; }

.archive-page { max-width: 1120px; }
.archive-stats { margin: 36px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.archive-stats div { min-width: 145px; padding: 16px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.archive-stats dt { color: var(--ink-soft); font-size: .68rem; font-weight: 800; }
.archive-stats dd { margin: 4px 0 0; font-family: Georgia, serif; font-size: 1.3rem; }
.archive-intro { padding: 72px 0 30px; }
.archive-intro h2, .book-list-intro h2 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(2rem, 4vw, 3.1rem); font-weight: 500; }
.archive-field-grid { margin-top: 34px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.archive-field-card { min-height: 118px; padding: 22px 24px; display: grid; grid-template-columns: 42px 1fr 32px; align-items: center; gap: 16px; border: 1px solid var(--line); border-radius: 18px; color: var(--ink); background: var(--white); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.archive-field-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.archive-field-card > span { color: var(--coral); font-family: Georgia, serif; font-size: 1.25rem; font-style: italic; }
.archive-field-card h2 { margin: 0; font-size: 1.08rem; }
.archive-field-card p { margin: 5px 0 0; color: var(--ink-soft); font-size: .75rem; }
.archive-field-card small { display: block; margin-top: 7px; color: var(--coral); font-size: .66rem; font-weight: 800; }
.archive-field-card h2 { margin: 0; font-size: 1.1rem; }
.archive-field-card p { margin: 5px 0 0; color: var(--ink-soft); font-size: .75rem; }
.archive-field-card b { font-size: 1.1rem; }
.lecture-index-page .archive-field-card:last-child { grid-column: 1 / -1; }
.lecture-index-page .archive-field-card:last-child > div { max-width: 820px; }
.archive-policy { margin-bottom: 24px; }
.archive-field-hero { margin-top: 22px; border-top-color: #315f66; }
.video-question-list { display: grid; gap: 18px; }
.video-question-card { border: 1px solid var(--line); border-radius: 20px; background: var(--white); overflow: hidden; }
.video-question-meta { padding: 26px 32px 0; color: var(--coral); font-family: Arial, sans-serif; font-size: .68rem; font-weight: 800; letter-spacing: .12em; }
.video-question-card > h2 { margin: 17px 32px 25px; font-size: 1.04rem; line-height: 1.85; }
.video-answer-panel { border-top: 1px solid var(--line); background: var(--paper); }
.video-answer-panel summary { min-height: 58px; padding: 14px 32px; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; font-size: .8rem; font-weight: 800; list-style: none; }
.video-answer-panel summary::-webkit-details-marker { display: none; }
.video-answer-panel[open] .detail-icon::after { transform: rotate(0); }
.video-answer-content { padding: 0 32px 28px; }
.video-answer-content p { margin: 0; padding: 20px 0 0; display: grid; grid-template-columns: 55px 1fr; gap: 15px; border-top: 1px solid var(--line); }
.video-answer-content span, .video-keywords > span { color: var(--coral); font-size: .68rem; font-weight: 800; }
.video-answer-content strong { font-size: .9rem; line-height: 1.75; white-space: pre-line; }
.video-question-tools { padding: 24px 32px 30px; border-top: 1px solid var(--line); }
.video-keywords { margin-bottom: 22px; display: grid; grid-template-columns: 85px 1fr; gap: 15px; }
.video-keywords ul { margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.video-keywords li { font-size: .68rem; }
.video-question-meta { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.video-question-meta a { color: var(--ink-soft); font-size: .63rem; letter-spacing: 0; text-underline-offset: 3px; }
.video-control + .video-control { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.video-trigger { min-height: 42px; padding: 9px 18px; border: 1px solid var(--ink); border-radius: 999px; color: var(--white); background: var(--ink); cursor: pointer; font: inherit; font-size: .78rem; font-weight: 800; }
.video-trigger:hover { background: #315f66; }
.video-trigger:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.video-frame { width: min(100%, 360px); aspect-ratio: 9 / 16; margin-top: 18px; border-radius: 14px; background: #0a191d; overflow: hidden; }
.video-frame iframe { width: 100%; height: 100%; border: 0; }
.question-code { max-width: calc(100% - 64px); margin: 0 32px 28px; padding: 20px 22px; overflow-x: auto; border: 1px solid #c9d9d6; border-radius: 14px; color: var(--ink); background: #f3f7f6; box-shadow: inset 0 0 0 1px rgb(255 255 255 / 65%); font-family: "Cascadia Code", "BIZ UDGothic", Consolas, monospace; font-size: .78rem; line-height: 1.85; white-space: pre; tab-size: 2; scrollbar-color: #78979b #e3ecea; }
.question-code:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }

.facet-panel { margin: 28px 0 34px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); overflow: hidden; }
.facet-panel > summary { min-height: 60px; padding: 16px 22px; display: flex; align-items: center; justify-content: space-between; gap: 18px; cursor: pointer; font-size: .88rem; font-weight: 800; list-style: none; }
.facet-panel > summary::-webkit-details-marker { display: none; }
.facet-panel > summary::after { content: "+"; width: 26px; height: 26px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; }
.facet-panel[open] > summary::after { content: "−"; }
.facet-panel > summary span { margin-left: auto; color: var(--coral); font-size: .72rem; }
.facet-panel-body { padding: 22px; border-top: 1px solid var(--line); }
.facet-panel-body > p { margin: 0 0 16px; color: var(--ink-soft); font-size: .78rem; }
.facet-tools { margin-bottom: 16px; display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; }
.facet-search { flex: 1; display: grid; gap: 6px; color: var(--ink-soft); font-size: .7rem; font-weight: 800; }
.facet-search input { width: 100%; min-height: 44px; padding: 9px 13px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); background: var(--paper); font: inherit; }
.facet-clear { flex: 0 0 auto; padding: 9px 13px; color: var(--ink-soft); font-size: .75rem; text-underline-offset: 4px; }
.facet-groups { display: grid; gap: 10px; }
.facet-group { border: 1px solid var(--line); border-radius: 12px; background: var(--paper); overflow: hidden; }
.facet-group > summary { min-height: 48px; padding: 11px 14px; display: flex; align-items: center; justify-content: space-between; gap: 14px; cursor: pointer; color: var(--ink); font-size: .8rem; font-weight: 800; list-style: none; }
.facet-group > summary::-webkit-details-marker { display: none; }
.facet-group > summary::after { content: "+"; margin-left: 4px; color: var(--coral); font-size: 1rem; }
.facet-group[open] > summary::after { content: "−"; }
.facet-group > summary span { margin-left: auto; color: var(--ink-soft); font-size: .66rem; }
.facet-group > .facet-links { max-height: 330px; padding: 12px; border-top: 1px solid var(--line); background: var(--white); }
.facet-group[hidden] { display: none; }
.facet-links { max-height: 420px; padding: 2px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 7px; overflow-y: auto; }
.facet-link { min-width: 0; padding: 8px 10px; display: flex; align-items: center; justify-content: space-between; gap: 8px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink-soft); background: var(--paper); font-size: .72rem; text-decoration: none; }
.facet-link span { overflow-wrap: anywhere; }
.facet-link small { flex: 0 0 auto; color: var(--ink-soft); font-size: .61rem; }
.facet-link:hover { border-color: var(--mint); color: var(--ink); }
.facet-link.is-selected { border-color: var(--ink); color: var(--white); background: var(--ink); }
.facet-link.is-selected small { color: rgb(255 255 255 / 75%); }
.facet-link[hidden] { display: none; }
.filter-results { margin-top: 48px; scroll-margin-top: 18px; }
.filter-results-heading { margin-bottom: 24px; }
.filter-results-heading h2 { margin: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(1.7rem, 4vw, 2.7rem); font-weight: 500; }
.filter-hit-count { flex: 0 0 auto; padding: 6px 12px; border: 1px solid #b7ccc8; border-radius: 999px; color: var(--ink); background: #eaf3f1; font-family: Arial, sans-serif; font-size: .78rem; font-weight: 800; line-height: 1; }
.filter-results-heading > p:last-child { margin: 8px 0 0; color: var(--ink-soft); font-size: .82rem; }
.filter-result-list { display: grid; gap: 18px; }
.filtered-question-card[hidden] { display: none; }
.filtered-question-card.is-origin-question { border-color: var(--coral); box-shadow: 0 0 0 3px rgb(233 111 81 / 14%); }
.filter-message { padding: 28px; border: 1px dashed var(--line); border-radius: 14px; color: var(--ink-soft); background: var(--white); text-align: center; }
.filter-load-more-controls { margin-top: 24px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.filter-load-more-controls[hidden], .filter-load-more-button[hidden] { display: none; }
.filter-result-status { margin: 0; color: var(--ink-soft); font-size: .8rem; font-weight: 700; }
.filter-load-more-button { flex: 0 0 auto; min-width: 250px; background: var(--white); }
.filter-load-more-button:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }

.books-page { max-width: 1040px; }
.book-list { padding: 72px 0 40px; }
.book-list-intro { max-width: 720px; margin-bottom: 34px; }
.book-list-intro > p:last-child { color: var(--ink-soft); }
.book-card { min-height: 250px; padding: 38px; display: grid; grid-template-columns: 120px minmax(0, 1fr); align-items: start; gap: 32px; border-top: 1px solid var(--line); background: var(--white); }
.book-card:first-of-type { border-radius: 20px 20px 0 0; }
.book-card:last-of-type { border-radius: 0 0 20px 20px; }
.book-number { color: var(--coral); font-family: Georgia, serif; font-size: 1.7rem; font-style: italic; }
.book-visual { display: grid; gap: 10px; }
.book-cover { width: 120px; height: auto; display: block; border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 12px 30px rgb(16 47 53 / 12%); }
.book-description { min-width: 0; }
.book-format { margin: 0; color: var(--ink-soft); font-size: .68rem; font-weight: 800; letter-spacing: .1em; }
.book-card h3 { margin: 8px 0 14px; font-family: Georgia, "Yu Mincho", serif; font-size: 1.55rem; font-weight: 500; line-height: 1.45; }
.book-card h3 + p { max-width: 720px; margin: 0 0 24px; color: var(--ink-soft); font-size: .86rem; }

.sitemap-page { max-width: 1120px; }
.sitemap-grid { padding: 20px 0 90px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.sitemap-group { padding: 34px; border: 1px solid var(--line); border-radius: 20px; background: var(--white); }
.sitemap-group h2 { margin: 6px 0 24px; font-family: Georgia, "Yu Mincho", serif; font-size: 1.65rem; font-weight: 500; }
.sitemap-group ul { margin: 0; padding: 0; display: grid; gap: 0; list-style: none; }
.sitemap-group li { padding: 14px 0; display: flex; align-items: baseline; justify-content: space-between; gap: 18px; border-top: 1px solid var(--line); }
.sitemap-group a { color: var(--ink); font-weight: 800; text-underline-offset: 4px; }
.sitemap-group span { color: var(--ink-soft); font-size: .73rem; text-align: right; }

@media (max-width: 900px) {
  .header-inner { min-height: 76px; }
  .global-nav { gap: 15px; }
  .global-nav a { font-size: .75rem; }
  .hero { grid-template-columns: 1fr; padding-top: 65px; }
  .hero-visual { order: -1; }
  .hero-map { width: min(88vw, 500px); }
  .hero-copy { text-align: center; }
  .hero-lead { margin-right: auto; margin-left: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { margin-right: auto; margin-left: auto; text-align: left; }
  .field-grid { grid-template-columns: repeat(2, 1fr); }
  .reading-guide { padding: 55px 45px; grid-template-columns: 1fr; gap: 38px; }
  .editorial-grid { grid-template-columns: repeat(2, 1fr); }
  .resource-grid { grid-template-columns: 1fr; }
  .content-card-grid { grid-template-columns: repeat(2, 1fr); }
  .lecture-field-grid { grid-template-columns: repeat(2, 1fr); }
  .app-cta { align-items: flex-start; flex-direction: column; }
  .field-hero { align-items: start; grid-template-columns: 1fr; }
  .field-hero dl { justify-content: start; }
  .choice-list { grid-template-columns: 1fr; }
  .facet-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .study-plan { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  html { scroll-padding-top: 145px; }
  .header-inner { width: min(100% - 24px, 1180px); padding: 12px 0; align-items: flex-start; flex-direction: column; gap: 8px; }
  .brand-mark { width: 36px; height: 36px; }
  .global-nav { width: 100%; padding-top: 7px; gap: 18px; overflow-x: auto; border-top: 1px solid var(--line); }
  .global-nav { scrollbar-width: none; }
  .global-nav::-webkit-scrollbar { display: none; }
  .global-nav a { flex: 0 0 auto; }
  .hero { width: min(100% - 24px, 1240px); min-height: 0; padding: 42px 0 65px; }
  .hero-map { width: min(92vw, 440px); }
  .map-node { width: 78px; height: 78px; padding: 5px; border-width: 5px; font-size: .56rem; }
  .hero h1 { font-size: clamp(2.65rem, 14vw, 4.5rem); }
  .hero-lead { font-size: .92rem; }
  .hero-actions .button { width: 100%; }
  .hero-stats dd { font-size: 1.55rem; }
  .home-start-guide, .home-return { text-align: left; }
  .home-start-guide > div, .home-return-guide > div { grid-template-columns: 1fr; }
  .home-start-guide a, .home-return-guide a { min-height: 58px; }
  .home-return-card { align-items: flex-start; flex-direction: column; }
  .section, .subpage { width: min(100% - 24px, 1180px); }
  .section { padding: 72px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 15px; }
  .field-grid { grid-template-columns: 1fr; }
  .content-card-grid { grid-template-columns: 1fr; }
  .lecture-field-grid { grid-template-columns: 1fr; }
  .field-card { min-height: 330px; }
  .resource-card { min-height: 260px; padding: 28px; }
  .reading-guide { width: min(100% - 24px, 1180px); padding: 42px 24px; border-radius: 22px; }
  .editorial-grid { grid-template-columns: 1fr; }
  .editorial-grid article { min-height: 190px; }
  .editorial-grid h3 { margin-top: 20px; }
  .app-cta { width: 100%; margin-bottom: 0; padding: 38px 24px; }
  .app-cta .button { width: 100%; }
  .study-guide-promo { padding-top: 18px; }
  .study-guide-card { padding: 38px 26px; align-items: flex-start; flex-direction: column; gap: 26px; }
  .footer-grid { align-items: flex-start; flex-direction: column; }
  .footer-grid nav { justify-content: flex-start; }
  .page-hero { padding: 36px 0 48px; }
  .library-notes { grid-template-columns: 1fr; }
  .library-notes article { border-top: 1px solid var(--line); border-left: 0; }
  .library-notes article:first-child { border-top: 0; }
  .field-hero { padding: 34px 24px; }
  .archive-field-hero h1 { font-size: 2.35rem; overflow-wrap: anywhere; }
  .field-hero dl { width: 100%; grid-template-columns: repeat(2, 1fr); }
  .pagination { grid-template-columns: 72px 1fr 72px; gap: 8px; }
  .pagination-top .page-numbers { display: none; }
  .pagination-top { grid-template-columns: 1fr 1fr; }
  .question-card { padding: 26px 20px 0; }
  .question-card > h2 { font-size: .98rem; }
  .answer-panel { margin-right: -20px; margin-left: -20px; }
  .answer-panel summary, .answer-content { padding-right: 20px; padding-left: 20px; }
  .correct-answer, .source-row, .tag-row { grid-template-columns: 48px 1fr; }
  .next-action { padding: 30px 24px; align-items: flex-start; flex-direction: column; }
  .next-action .button { width: 100%; }
  .archive-field-grid { grid-template-columns: 1fr; }
  .archive-stats { display: grid; grid-template-columns: repeat(3, 1fr); }
  .archive-stats div { min-width: 0; padding: 13px; }
  .video-question-meta { padding: 23px 20px 0; }
  .video-question-card > h2 { margin-right: 20px; margin-left: 20px; font-size: .96rem; }
  .video-answer-panel summary, .video-answer-content, .video-question-tools { padding-right: 20px; padding-left: 20px; }
  .video-keywords { grid-template-columns: 1fr; gap: 8px; }
  .facet-tools { align-items: stretch; flex-direction: column; }
  .facet-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facet-clear { align-self: flex-start; }
  .filter-load-more-controls { align-items: stretch; flex-direction: column; }
  .filter-load-more-button { width: 100%; min-width: 0; }
  .prose-content table { display: block; overflow-x: auto; white-space: nowrap; }
  .question-code { max-width: calc(100% - 40px); margin-right: 20px; margin-left: 20px; padding: 17px 18px; font-size: .72rem; }
  .book-showcase-card { grid-template-columns: 88px minmax(0, 1fr); border-radius: 16px; }
  .book-showcase-card img { width: 88px; }
  .book-showcase-card > div { min-height: 141px; padding: 14px 15px; }
  .book-showcase-card h3 { margin-bottom: 5px; font-size: 1rem; }
  .book-showcase-card .book-showcase-description { margin-bottom: 8px; font-size: .7rem; line-height: 1.6; }
  .book-showcase-card span { font-size: .68rem; }
  .book-card { padding: 28px 20px; grid-template-columns: 82px minmax(0, 1fr); gap: 17px; }
  .book-number { font-size: 1.3rem; }
  .book-cover { width: 82px; }
  .book-card h3 { font-size: 1.15rem; overflow-wrap: anywhere; }
  .book-card h3 + p { font-size: .78rem; }
  .sitemap-grid { grid-template-columns: 1fr; }
  .sitemap-group { padding: 26px 22px; }
  .sitemap-group li { align-items: flex-start; flex-direction: column; gap: 3px; }
  .sitemap-group span { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .site-header { transition: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}