@charset "UTF-8";

@font-face {
  font-family: "Oswald";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/oswald-400.ttf") format("truetype");
}
@font-face {
  font-family: "Oswald";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/assets/fonts/oswald-600.ttf") format("truetype");
}

:root {
  --navy: #071a3d;
  --navy-soft: #102b58;
  --cyan: #2cabee;
  --ink: #101318;
  --concrete: #f3f5f7;
  --white: #ffffff;
  --line: #cbd1d8;
  --muted: #5d6570;
  --max: 1280px;
  --pad: clamp(20px, 4vw, 64px);
  --display: "Oswald", "Arial Narrow", sans-serif;
  --body: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --z-header: 20;
  --z-nav: 30;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
img { display: block; width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
p, h1, h2, h3 { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 16px;
  color: var(--navy);
  background: var(--white);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
.shell { width: min(100%, var(--max)); margin-inline: auto; padding-inline: var(--pad); }
.display { font-family: var(--display); font-weight: 600; letter-spacing: -.025em; line-height: .98; }
.section-title { font-size: clamp(2.5rem, 6vw, 5.5rem); margin-bottom: 0; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  font-family: var(--display);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.section-label::before { content: ""; width: 40px; height: 2px; background: var(--cyan); }
.arrow-link, .primary-button, .secondary-button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  font-weight: 700;
  line-height: 1.3;
  transition: color .3s var(--ease), background-color .3s var(--ease), border-color .3s var(--ease);
}
.primary-button { padding: 13px 20px; color: var(--navy); background: var(--cyan); }
.primary-button:hover { color: var(--white); background: var(--navy-soft); }
.secondary-button { padding: 12px 19px; border: 1px solid currentColor; }
.secondary-button:hover { color: var(--navy); background: var(--white); border-color: var(--white); }
.arrow-link { border-bottom: 1px solid currentColor; }
.arrow-link:hover { color: var(--cyan); }
.arrow { font-family: var(--display); font-size: 1.25em; }

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  color: var(--white);
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,.2);
}
.header-inner { display: flex; height: 78px; align-items: stretch; }
.brand {
  display: flex;
  min-width: 260px;
  align-items: center;
  gap: 16px;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: .08em;
}
.brand-mark { display: grid; width: 34px; height: 34px; place-items: center; border: 2px solid var(--cyan); color: var(--cyan); }
.site-nav { display: flex; flex: 1; align-items: stretch; justify-content: flex-end; }
.nav-list { display: flex; margin: 0; padding: 0; list-style: none; }
.nav-list a { display: grid; min-width: 104px; height: 100%; place-items: center; padding: 0 14px; border-left: 1px solid rgba(255,255,255,.16); font-size: .83rem; font-weight: 700; }
.nav-list a:hover, .nav-list a[aria-current="page"] { color: var(--navy); background: var(--cyan); }
.header-action { align-self: center; margin-left: 18px; color: var(--navy); background: var(--cyan); }
.menu-button { display: none; margin-left: auto; padding: 0; color: var(--white); background: transparent; border: 0; }
.menu-icon { display: grid; width: 48px; height: 48px; place-content: center; gap: 6px; }
.menu-icon span { display: block; width: 24px; height: 2px; background: currentColor; transition: transform .3s var(--ease); }

.hero { min-height: calc(100svh - 78px); overflow: hidden; background: var(--concrete); }
.hero-grid { display: grid; min-height: calc(100svh - 78px); grid-template-columns: repeat(12, 1fr); }
.hero-copy { display: flex; grid-column: 1 / 8; flex-direction: column; justify-content: center; padding-block: clamp(72px, 9vw, 132px); padding-right: clamp(24px, 5vw, 80px); }
.hero h1 { max-width: 8.8em; margin-bottom: 34px; color: var(--navy); font-size: clamp(3.7rem, 6.3vw, 5.25rem); }
.hero-intro { max-width: 33rem; margin-bottom: 36px; font-size: clamp(1rem, 1.4vw, 1.15rem); line-height: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-portrait { position: relative; grid-column: 8 / 13; min-height: 620px; background: #d8dde2; }
.hero-portrait img { height: 100%; object-fit: cover; object-position: center 18%; filter: grayscale(100%); }
.hero-portrait figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(70%, 400px);
  padding: 22px 26px;
  color: var(--white);
  background: var(--navy);
  font-size: .8rem;
  line-height: 1.65;
}
.hero-portrait figcaption strong { display: block; color: var(--cyan); font-family: var(--display); font-size: 1.2rem; letter-spacing: .06em; }
.credentials { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--white); }
.credentials-inner { display: grid; grid-template-columns: repeat(3, 1fr); }
.credential { padding: 24px clamp(16px, 3vw, 38px); border-right: 1px solid var(--line); }
.credential:first-child { padding-left: 0; }
.credential:last-child { border-right: 0; }
.credential b { display: block; color: var(--navy); font-family: var(--display); font-size: 1.25rem; letter-spacing: .03em; }
.credential span { color: var(--muted); font-size: .78rem; }

.latest-book { overflow: hidden; color: var(--white); background: var(--navy); }
.latest-grid { display: grid; min-height: 760px; grid-template-columns: repeat(12, 1fr); align-items: center; padding-block: clamp(80px, 10vw, 150px); }
.book-stage { position: relative; grid-column: 1 / 6; padding: 26px 16%; }
.book-stage::before { content: ""; position: absolute; inset: 0 9% 0 0; background: var(--cyan); }
.book-stage img { position: relative; z-index: 1; }
.latest-copy { grid-column: 7 / 13; }
.latest-copy h2 { max-width: 10em; margin-bottom: 28px; font-size: clamp(2.7rem, 5vw, 4.8rem); }
.latest-copy .book-name { max-width: 30rem; margin-bottom: 24px; font-size: clamp(1.35rem, 2.1vw, 2rem); font-weight: 700; line-height: 1.55; }
.latest-copy p { max-width: 36rem; color: rgba(255,255,255,.78); }
.book-meta { display: block; margin: 30px 0 34px; color: var(--cyan); font-size: .78rem; }

.news-section { padding-block: clamp(90px, 11vw, 160px); }
.section-heading-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 56px; }
.news-list { border-top: 1px solid var(--ink); }
.news-row { display: grid; min-height: 118px; grid-template-columns: 140px 100px 1fr 44px; align-items: center; gap: 28px; border-bottom: 1px solid var(--line); transition: background-color .3s var(--ease), padding .3s var(--ease); }
.news-row:hover { padding-inline: 16px; background: var(--concrete); }
.news-date { color: var(--muted); font-family: var(--display); font-size: .9rem; letter-spacing: .05em; }
.news-kind { width: fit-content; padding: 3px 10px; color: var(--navy); background: var(--cyan); font-size: .72rem; font-weight: 700; }
.news-title { font-size: 1.02rem; font-weight: 700; }
.news-row .arrow { color: var(--navy); text-align: right; }

.media-section { background: var(--concrete); }
.media-grid { display: grid; grid-template-columns: repeat(12, 1fr); }
.media-copy { grid-column: 1 / 5; padding: clamp(80px, 9vw, 140px) clamp(28px, 5vw, 72px) clamp(80px, 9vw, 140px) 0; }
.media-copy p { max-width: 25rem; margin: 30px 0; color: var(--muted); }
.video-stack { grid-column: 5 / 13; }
.video-item { display: grid; grid-template-columns: 1.28fr 1fr; color: var(--white); background: var(--navy); border-bottom: 1px solid rgba(255,255,255,.18); }
.video-item:nth-child(2) { color: var(--navy); background: var(--cyan); }
.video-image { position: relative; min-height: 250px; }
.video-image img { height: 100%; object-fit: cover; }
.play-mark { position: absolute; inset: 50% auto auto 50%; display: grid; width: 62px; height: 62px; place-items: center; color: var(--navy); background: var(--cyan); transform: translate(-50%, -50%); font-family: var(--display); }
.video-item:nth-child(2) .play-mark { color: var(--white); background: var(--navy); }
.video-text { display: flex; flex-direction: column; justify-content: center; padding: 30px; }
.video-text small { margin-bottom: 14px; font-family: var(--display); letter-spacing: .1em; }
.video-text h3 { margin: 0; font-size: clamp(1rem, 1.6vw, 1.35rem); line-height: 1.55; }

.practice-section { color: var(--white); background: #111923; }
.practice-grid { display: grid; min-height: 660px; grid-template-columns: repeat(12, 1fr); }
.practice-image { grid-column: 1 / 7; }
.practice-image img { height: 100%; object-fit: cover; }
.practice-copy { display: flex; grid-column: 7 / 13; flex-direction: column; justify-content: center; padding: clamp(68px, 9vw, 130px) 0 clamp(68px, 9vw, 130px) clamp(30px, 6vw, 90px); }
.practice-copy h2 { max-width: 10em; margin-bottom: 30px; font-size: clamp(2.5rem, 5.8vw, 5.2rem); }
.practice-copy p { max-width: 34rem; color: rgba(255,255,255,.76); }
.practice-copy .primary-button { width: fit-content; margin-top: 24px; }

.profile-section { padding-block: clamp(90px, 11vw, 170px); }
.profile-grid { display: grid; grid-template-columns: repeat(12, 1fr); align-items: start; }
.profile-heading { grid-column: 1 / 5; position: sticky; top: 120px; }
.profile-heading h2 { font-size: clamp(3.2rem, 7vw, 6rem); }
.profile-content { grid-column: 6 / 13; }
.profile-lead { margin-bottom: 34px; color: var(--navy); font-size: clamp(1.35rem, 2.3vw, 2.15rem); font-weight: 700; line-height: 1.65; }
.profile-content p:not(.profile-lead) { max-width: 44rem; color: var(--muted); }
.profile-links { display: flex; flex-wrap: wrap; gap: 18px 32px; margin-top: 36px; }

.site-footer { color: var(--white); background: var(--navy); }
.footer-cta { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 40px; padding-block: clamp(70px, 9vw, 130px); border-bottom: 1px solid rgba(255,255,255,.2); }
.footer-cta h2 { max-width: 10em; margin: 0; font-size: clamp(3rem, 7vw, 6rem); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 12px 34px; margin: 0; padding: 28px 0; list-style: none; border-bottom: 1px solid rgba(255,255,255,.2); font-size: .82rem; font-weight: 700; }
.footer-nav a:hover { color: var(--cyan); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-block: 26px; color: rgba(255,255,255,.64); font-size: .72rem; }
.socials { display: flex; gap: 22px; }

.page-hero { padding: clamp(80px, 10vw, 150px) 0 clamp(56px, 7vw, 100px); color: var(--white); background: var(--navy); }
.page-hero-inner { display: grid; grid-template-columns: repeat(12, 1fr); align-items: end; }
.page-title { grid-column: 1 / 9; margin: 0; font-size: clamp(4rem, 10vw, 6rem); }
.page-intro { grid-column: 9 / 13; margin: 0 0 10px; color: rgba(255,255,255,.72); font-size: .9rem; }
.content-section { padding-block: clamp(72px, 9vw, 130px); }
.prose-grid { display: grid; grid-template-columns: repeat(12, 1fr); }
.prose-aside { grid-column: 1 / 5; }
.prose-aside img { max-height: 720px; object-fit: cover; filter: grayscale(100%); }
.prose { grid-column: 6 / 13; max-width: 46rem; }
.prose h2 { margin: 64px 0 24px; color: var(--navy); font-size: clamp(1.8rem, 3vw, 2.6rem); }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: #424b56; }
.prose-list { padding-left: 1.2em; }
.action-group { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 42px; }
.action-group .secondary-button { color: var(--navy); }
.action-group .secondary-button:hover { color: var(--white); background: var(--navy); border-color: var(--navy); }

.books-list { border-top: 1px solid var(--ink); }
.book-row { display: grid; grid-template-columns: 3fr 9fr; gap: clamp(28px, 6vw, 90px); padding-block: clamp(56px, 7vw, 96px); border-bottom: 1px solid var(--line); }
.book-cover { padding-inline: 12%; align-self: start; }
.book-body { display: flex; flex-direction: column; justify-content: center; }
.book-number { margin-bottom: 18px; color: var(--cyan); font-family: var(--display); font-size: 1rem; letter-spacing: .12em; }
.book-body h2 { max-width: 18em; margin-bottom: 20px; color: var(--navy); font-size: clamp(1.55rem, 3.2vw, 2.65rem); line-height: 1.45; }
.book-body p { max-width: 40rem; color: var(--muted); }
.book-body .book-details { margin: 12px 0 28px; color: var(--ink); font-size: .77rem; }
.book-body .primary-button { width: fit-content; }

.channel-directory { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--line); }
.channel-link { display: flex; min-height: 160px; flex-direction: column; justify-content: space-between; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: color .3s var(--ease), background-color .3s var(--ease); }
.channel-link:hover { color: var(--white); background: var(--navy); }
.channel-link b { color: var(--navy); font-family: var(--display); font-size: 1.8rem; letter-spacing: -.01em; }
.channel-link:hover b { color: var(--cyan); }
.channel-link span { color: var(--muted); font-size: .82rem; }
.channel-link:hover span { color: rgba(255,255,255,.72); }
.media-directory { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); }
.media-card { color: var(--white); background: var(--navy); }
.media-card-copy { min-height: 190px; padding: 30px; }
.media-card-copy small { color: var(--cyan); font-family: var(--display); letter-spacing: .1em; }
.media-card-copy h2 { max-width: 22em; margin: 20px 0 0; font-size: clamp(1.25rem, 2.4vw, 2rem); line-height: 1.55; }
.news-directory .news-row { grid-template-columns: 140px 100px 1fr 44px; }

.not-found { display: grid; min-height: 65vh; place-content: center; text-align: center; }
.not-found h1 { margin: 0; color: var(--navy); font-family: var(--display); font-size: min(28vw, 14rem); line-height: 1; }

.reveal-ready { opacity: .01; transform: translateY(32px); transition: opacity .75s var(--ease), transform .75s var(--ease); }
.reveal-ready.is-revealed { opacity: 1; transform: translateY(0); }

@media (max-width: 1080px) {
  .nav-list a { min-width: 84px; padding-inline: 10px; font-size: .76rem; }
  .header-action { display: none; }
  .hero-copy { grid-column: 1 / 8; }
  .hero-portrait { grid-column: 8 / 13; }
}

@media (max-width: 820px) {
  .header-inner { height: 64px; }
  .brand { min-width: 0; }
  .menu-button { display: block; }
  .site-nav {
    position: fixed;
    inset: 64px 0 0;
    z-index: var(--z-nav);
    display: block;
    overflow: auto;
    color: var(--white);
    background: var(--navy);
    transform: translateX(100%);
    transition: transform .45s var(--ease);
  }
  .site-nav.is-open { transform: translateX(0); }
  .menu-button[aria-expanded="true"] .menu-icon span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-button[aria-expanded="true"] .menu-icon span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .nav-list { display: block; padding: 20px var(--pad) 44px; }
  .nav-list a { min-height: 66px; place-items: center start; border-left: 0; border-bottom: 1px solid rgba(255,255,255,.18); font-family: var(--display); font-size: 1.35rem; }
  .hero { min-height: 0; }
  .hero-grid { display: flex; min-height: 0; flex-direction: column-reverse; padding-inline: 0; }
  .hero-copy { padding: 54px var(--pad) 68px; }
  .hero-portrait { min-height: 64svh; margin: 0; }
  .hero-portrait figcaption { width: auto; max-width: 76%; }
  .credentials-inner { grid-template-columns: 1fr; }
  .credential, .credential:first-child { padding: 16px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .credential:last-child { border-bottom: 0; }
  .latest-grid { grid-template-columns: 1fr; }
  .book-stage { grid-column: auto; max-width: 480px; padding: 24px 18%; }
  .latest-copy { grid-column: auto; padding-top: 60px; }
  .media-grid, .practice-grid, .profile-grid, .page-hero-inner, .prose-grid { display: block; }
  .media-copy { padding-right: 0; }
  .practice-image { min-height: 480px; }
  .practice-copy { padding-left: 0; }
  .profile-heading { position: static; margin-bottom: 48px; }
  .footer-cta { grid-template-columns: 1fr; align-items: start; }
  .page-intro { max-width: 34rem; margin-top: 30px; }
  .prose-aside { max-width: 480px; margin-bottom: 48px; }
  .book-row { grid-template-columns: minmax(150px, 1fr) 2.2fr; }
}

@media (max-width: 560px) {
  body { font-size: 15px; }
  .brand { font-size: 1.15rem; }
  .brand-mark { width: 30px; height: 30px; }
  .hero-portrait { min-height: 500px; }
  .hero-portrait img { object-position: center 14%; }
  .hero-portrait figcaption { right: var(--pad); bottom: 18px; left: var(--pad); max-width: none; padding: 16px 18px; }
  .hero h1 { font-size: clamp(3.15rem, 15vw, 4.35rem); }
  .hero-actions { display: grid; }
  .primary-button, .secondary-button { width: 100%; }
  .latest-grid { min-height: 0; padding-block: 78px; }
  .latest-copy h2 { font-size: 3.2rem; }
  .section-heading-row { display: block; margin-bottom: 34px; }
  .section-heading-row .arrow-link { margin-top: 28px; }
  .news-row, .news-directory .news-row { position: relative; grid-template-columns: 78px 1fr; gap: 8px 16px; min-height: 118px; padding: 22px 40px 22px 0; }
  .news-row:hover { padding-left: 10px; padding-right: 40px; }
  .news-kind { grid-column: 2; grid-row: 1; }
  .news-title { grid-column: 1 / 3; }
  .news-row > .arrow { position: absolute; right: 4px; top: 50%; transform: translateY(-50%); }
  .video-item { grid-template-columns: 1fr; }
  .video-image { min-height: 210px; }
  .video-text { min-height: 170px; }
  .practice-image { min-height: 380px; }
  .profile-links { display: grid; }
  .profile-links .arrow-link { min-height: 48px; }
  .footer-cta .primary-button { width: 100%; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 16px; }
  .page-title { overflow-wrap: anywhere; font-size: clamp(3.4rem, 18vw, 5rem); }
  .book-row { display: block; }
  .book-cover { max-width: 300px; margin: 0 auto 44px; padding-inline: 14%; }
  .book-body .primary-button { width: 100%; }
  .channel-directory, .media-directory { grid-template-columns: 1fr; }
  .channel-link { min-height: 140px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .reveal-ready { opacity: 1; transform: none; }
}

/* FIE GOOD-inspired editorial direction ---------------------------------- */
:root {
  --navy: #454545;
  --navy-soft: #007fa3;
  --cyan: #007fa3;
  --ink: #454545;
  --concrete: #eaeaea;
  --line: #d6d6d1;
  --muted: #6a6a66;
  --max: 1200px;
  --pad: clamp(24px, 8vw, 96px);
  --display: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
}

body {
  color: #454545;
  background: #fff;
  font-weight: 500;
  line-height: 2.15;
  letter-spacing: .12em;
}

.shell { width: min(84%, var(--max)); padding-inline: 0; }
.display { font-family: var(--display); font-weight: 700; letter-spacing: .08em; line-height: 1.5; }
.section-title { font-size: clamp(2rem, 4vw, 3.5rem); }
.section-label { gap: 10px; margin-bottom: 16px; font-family: Arial, sans-serif; font-size: .72rem; letter-spacing: .12em; text-transform: none; }
.section-label::before { width: 24px; height: 1px; background: #007fa3; }
.arrow-link, .primary-button, .secondary-button { min-height: 46px; font-size: .82rem; letter-spacing: .1em; }
.primary-button { padding: 10px 20px; color: #fff; background: #007fa3; }
.primary-button:hover { color: #454545; background: #e0e05c; }
.secondary-button { padding: 9px 19px; border: 1px solid #454545; }
.secondary-button:hover { color: #fff; background: #007fa3; border-color: #007fa3; }
.arrow-link { border-bottom: 1px solid #454545; }
.arrow-link:hover { color: #007fa3; }

.site-header { position: relative; color: #454545; background: #fff; border: 0; }
.header-inner { position: relative; display: grid; height: 150px; place-items: start center; padding-top: 30px; }
.brand { min-width: 0; justify-content: center; gap: 12px; font-family: Arial, sans-serif; font-size: 1.05rem; letter-spacing: .18em; }
.brand-mark { width: 31px; height: 31px; border: 1px solid #454545; color: #007fa3; border-radius: 50%; font-size: .8rem; }
.site-nav { position: absolute; right: 0; bottom: 14px; left: 0; justify-content: center; }
.nav-list a { min-width: 0; height: 46px; padding: 0 clamp(10px, 1.5vw, 22px); border: 0; font-size: .76rem; letter-spacing: .16em; }
.nav-list a:hover, .nav-list a[aria-current="page"] { color: #007fa3; background: transparent; }
.header-action { position: fixed; top: 27px; right: 2%; z-index: 22; display: grid; width: 54px; height: 54px; min-height: 0; margin: 0; place-items: center; padding: 0; border-radius: 50%; color: #fff; background: #454545; font-size: .56rem; line-height: 1.1; text-align: center; }
.header-action .arrow { display: none; }
.header-action:hover { color: #fff; background: #007fa3; }

.hero { min-height: 650px; overflow: visible; background: #fff; }
.hero-grid { position: relative; display: block; width: min(84%, 1200px); height: min(calc(100vh - 150px), 747px); min-height: 550px; padding: 0; }
.hero-portrait { position: absolute; inset: 0; min-height: 0; margin: 0; background: #eaeaea; }
.hero-portrait img { height: 100%; object-fit: cover; object-position: center 22%; filter: grayscale(18%) saturate(82%); }
.hero-portrait::after { content: ""; position: absolute; inset: 0; background: rgba(255,255,255,.06); pointer-events: none; }
.hero-portrait figcaption { right: 20px; bottom: 20px; width: auto; max-width: 300px; padding: 14px 18px; color: #454545; background: rgba(255,255,255,.92); font-size: .64rem; letter-spacing: .08em; }
.hero-portrait figcaption strong { color: #007fa3; font-family: Arial, sans-serif; font-size: .85rem; }
.hero-copy { position: absolute; inset: 0; z-index: 2; display: block; padding: 0; pointer-events: none; }
.hero-copy .section-label { position: absolute; top: 7%; left: 6%; padding: 5px 10px; background: #fff; }
.hero h1 { position: absolute; top: 16%; bottom: auto; left: 6%; max-width: none; margin: 0; padding: 18px 11px; color: #454545; background: #fff; font-size: clamp(1.05rem, 1.6vw, 1.35rem); line-height: 1.9; letter-spacing: .16em; writing-mode: vertical-rl; text-orientation: upright; }
.hero-intro { position: absolute; bottom: -130px; left: 0; max-width: 35rem; margin: 0; color: #5d5d59; font-size: .86rem; line-height: 2.15; }
.hero-actions { position: absolute; right: 20px; bottom: 48px; display: block; pointer-events: auto; }
.hero-actions .primary-button { display: grid; width: 126px; height: 126px; min-height: 0; place-items: center; padding: 20px; border-radius: 50%; color: #fff; background: #007fa3; text-align: center; }
.hero-actions .primary-button .arrow { display: none; }
.hero-actions .primary-button:hover { color: #454545; background: #e0e05c; }
.hero-actions .secondary-button { position: absolute; top: 138px; right: 0; width: max-content; min-height: 44px; padding: 0; color: #454545; background: transparent; border: 0; border-bottom: 1px solid #454545; }

.credentials { margin-top: 165px; border: 0; background: #fff; }
.credentials-inner { grid-template-columns: repeat(3, 1fr); border-top: 1px solid #d6d6d1; border-bottom: 1px solid #d6d6d1; }
.credential { padding: 24px 28px; border-right: 1px solid #d6d6d1; }
.credential:first-child { padding-left: 28px; }
.credential b { color: #454545; font-family: Arial, sans-serif; font-size: .9rem; letter-spacing: .12em; }
.credential span { color: #6a6a66; font-size: .7rem; }

.latest-book { margin-top: 130px; color: #454545; background: #eaeaea; }
.latest-grid { min-height: 0; padding-block: clamp(90px, 10vw, 145px); }
.book-stage { grid-column: 1 / 6; padding: 30px 18%; }
.book-stage::before { inset: 7% 4% 7% 12%; background: #e0e05c; border-radius: 50%; }
.latest-copy { grid-column: 7 / 13; }
.latest-copy h2 { margin-bottom: 22px; color: #454545; font-family: Arial, sans-serif; font-size: clamp(1.9rem, 3vw, 3rem); line-height: 1.15; letter-spacing: .06em; }
.latest-copy .book-name { color: #454545; font-size: clamp(1.25rem, 2vw, 1.85rem); line-height: 1.75; letter-spacing: .12em; }
.latest-copy p { color: #5d5d59; line-height: 2.1; }
.book-meta { color: #007fa3; }

.news-section { padding-block: clamp(95px, 11vw, 155px); background: #fff; }
.section-heading-row { margin-bottom: 42px; }
.news-list { border-top: 1px solid #454545; }
.news-row { min-height: 108px; grid-template-columns: 135px 90px 1fr 36px; border-bottom-color: #d6d6d1; }
.news-row:hover { padding-inline: 14px; background: #eaeaea; }
.news-kind { padding: 2px 9px; color: #fff; background: #007fa3; }
.news-row .arrow { color: #007fa3; }

.media-section { background: #eaeaea; }
.media-grid { padding-block: clamp(90px, 10vw, 145px); }
.media-copy { padding: 0 clamp(28px, 5vw, 72px) 0 0; align-self: center; }
.media-copy p { color: #5d5d59; }
.video-stack { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; }
.video-item, .video-item:nth-child(2) { display: flex; color: #454545; background: transparent; border: 0; flex-direction: column; }
.video-image { min-height: 220px; }
.video-image img { filter: saturate(78%); }
.play-mark, .video-item:nth-child(2) .play-mark { width: 68px; height: 68px; color: #fff; background: #007fa3; border-radius: 50%; font-size: .65rem; }
.video-text { min-height: 150px; justify-content: flex-start; padding: 22px 0 0; }
.video-text small { color: #007fa3; }

.practice-section { color: #454545; background: #fff; }
.practice-grid { min-height: 640px; padding-block: clamp(95px, 10vw, 150px); }
.practice-image { position: relative; grid-column: 1 / 8; min-height: 520px; }
.practice-image::after { content: "量子力学講座"; position: absolute; right: 22px; bottom: 22px; padding: 10px 16px; background: #fff; font-weight: 700; letter-spacing: .18em; writing-mode: vertical-rl; }
.practice-image img { filter: saturate(75%); }
.practice-copy { grid-column: 8 / 13; padding: 50px 0 50px clamp(30px, 5vw, 75px); }
.practice-copy h2 { color: #454545; font-size: clamp(1.7rem, 3vw, 2.7rem); line-height: 1.75; }
.practice-copy p { color: #5d5d59; }

.profile-section { padding-block: clamp(100px, 11vw, 160px); background: #eaeaea; }
.profile-heading { grid-column: 1 / 5; }
.profile-heading h2 { color: #454545; font-family: Arial, sans-serif; font-size: clamp(2.1rem, 4vw, 3.5rem); line-height: 1.1; letter-spacing: .06em; }
.profile-content { grid-column: 6 / 13; }
.profile-lead { color: #454545; font-size: clamp(1.25rem, 2vw, 1.8rem); line-height: 1.9; }
.profile-content p:not(.profile-lead) { color: #5d5d59; }

.site-footer { color: #454545; background: #fff; }
.footer-cta { border-bottom-color: #d6d6d1; }
.footer-cta h2 { max-width: 14em; color: #454545; font-size: clamp(1.9rem, 4.2vw, 3.8rem); line-height: 1.55; }
.footer-nav { border-bottom-color: #d6d6d1; }
.footer-nav a:hover { color: #007fa3; }
.footer-bottom { color: #777; }

.page-hero { margin: 0 auto; padding: clamp(70px, 8vw, 120px) 0; color: #454545; background: #eaeaea; }
.page-title { color: #454545; font-family: Arial, sans-serif; font-size: clamp(2.8rem, 7vw, 5.2rem); letter-spacing: .05em; }
.page-intro { color: #666; }
.content-section { padding-block: clamp(80px, 9vw, 130px); }
.prose-aside img { filter: grayscale(12%) saturate(80%); }
.prose h2 { color: #454545; line-height: 1.75; }
.prose p, .prose li { color: #5d5d59; }
.action-group .secondary-button { color: #454545; }
.book-number { color: #007fa3; font-family: Arial, sans-serif; }
.book-body h2 { color: #454545; }
.book-body p { color: #5d5d59; }
.channel-link:hover, .media-card { color: #fff; background: #007fa3; }
.channel-link b { color: #454545; font-family: Arial, sans-serif; }
.channel-link:hover b { color: #e0e05c; }
.media-card-copy small { color: #e0e05c; }
.not-found h1 { color: #007fa3; }

@media (max-width: 820px) {
  .shell { width: 84%; }
  .site-header { position: fixed; top: 0; right: 0; left: 0; z-index: 20; height: 80px; }
  .header-inner { display: flex; width: 100%; height: 80px; padding: 0; }
  .brand { width: 145px; height: 80px; justify-content: flex-start; padding: 0 16px; background: #fff; border-radius: 0 0 20px 0; font-size: .78rem; }
  .brand-mark { width: 28px; height: 28px; flex: 0 0 auto; }
  .menu-button { position: fixed; top: 17px; right: 5%; z-index: 22; display: block; width: 46px; height: 46px; border-radius: 50%; background: #007fa3; }
  .menu-icon { width: 46px; height: 46px; }
  .menu-button[aria-expanded="true"] { color: #007fa3; background: #fff; }
  .site-nav { position: fixed; inset: 0; z-index: -1; padding-top: 90px; color: #fff; background: #007fa3; }
  .site-nav.is-open { z-index: 21; }
  .nav-list { padding: 0 8% 60px; }
  .nav-list a { min-height: 62px; color: #fff; border-bottom: 2px solid rgba(255,255,255,.4); font-family: var(--body); font-size: .92rem; letter-spacing: .16em; }
  .nav-list a:hover, .nav-list a[aria-current="page"] { color: #454545; background: #e0e05c; }
  .header-action { display: none; }
  .hero { min-height: 650px; padding-top: 80px; }
  .hero-grid { display: block; width: 100%; height: auto; min-height: 570px; padding: 0; }
  .hero-portrait { position: relative; height: 400px; min-height: 0; }
  .hero-portrait img { object-position: center 16%; }
  .hero-portrait figcaption { right: auto; bottom: 14px; left: 8%; max-width: 72%; }
  .hero-copy { padding: 0; }
  .hero-copy .section-label { top: 26px; left: 8%; }
  .hero h1 { top: 80px; left: 8%; font-size: 1.05rem; line-height: 1.85; }
  .hero-intro { right: 8%; bottom: 24px; left: 8%; max-width: none; font-size: .78rem; }
  .hero-actions { right: 5%; bottom: 100px; }
  .hero-actions .primary-button { width: 116px; height: 116px; }
  .hero-actions .secondary-button { top: 128px; }
  .credentials { margin-top: 40px; }
  .credentials-inner { grid-template-columns: 1fr; }
  .credential, .credential:first-child { padding: 16px 0; }
  .latest-book { margin-top: 80px; }
  .latest-grid { padding-block: 80px; }
  .book-stage { max-width: 380px; margin-inline: auto; }
  .latest-copy { padding-top: 52px; }
  .media-grid { padding-block: 80px; }
  .media-copy { padding: 0 0 48px; }
  .video-stack { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .practice-grid { padding-block: 80px; }
  .practice-image { min-height: 420px; }
  .practice-copy { padding: 55px 0 0; }
  .profile-heading { margin-bottom: 36px; }
}

@media (max-width: 560px) {
  body { font-size: 15px; line-height: 2.05; letter-spacing: .1em; }
  .hero-portrait { height: 350px; }
  .hero { min-height: 630px; }
  .hero-grid { min-height: 550px; }
  .hero-portrait figcaption { padding: 10px 14px; font-size: .58rem; }
  .hero-actions { bottom: 82px; }
  .hero-intro { bottom: 10px; padding-right: 105px; line-height: 1.85; }
  .latest-copy h2 { font-size: 2rem; }
  .news-row, .news-directory .news-row { min-height: 116px; }
  .video-stack { grid-template-columns: 1fr; }
  .video-image { min-height: 200px; }
  .video-text { min-height: 120px; }
  .practice-image { min-height: 320px; }
  .practice-copy h2 { font-size: 1.65rem; }
  .profile-heading h2 { font-size: 2.4rem; }
  .footer-cta h2 { font-size: 1.9rem; }
}

/* Authority content hub -------------------------------------------------- */
.breadcrumbs { padding-block: 18px; font-size: .68rem; letter-spacing: .08em; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px 14px; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li { display: flex; align-items: center; gap: 14px; color: #74746f; }
.breadcrumbs li:not(:last-child)::after { content: "/"; color: #aaa; }
.breadcrumbs a:hover { color: #007fa3; }

.authority-section { padding-block: clamp(95px, 11vw, 160px); color: #fff; background: #007fa3; }
.authority-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 40px; }
.authority-grid > :first-child { grid-column: 1 / 6; }
.authority-grid > :last-child { grid-column: 7 / 13; }
.authority-grid h2 { margin: 0; font-size: clamp(2.2rem, 4.5vw, 4rem); }
.authority-grid .section-label::before { background: #e0e05c; }
.authority-copy .profile-lead { color: #fff; }
.authority-copy p:not(.profile-lead) { max-width: 42rem; color: rgba(255,255,255,.82); }
.authority-copy .primary-button { width: fit-content; margin-top: 24px; color: #454545; background: #e0e05c; }
.authority-copy .primary-button:hover { color: #fff; background: #454545; }

.newsletter-section { padding-block: clamp(90px, 10vw, 150px); background: #eaeaea; }
.newsletter-grid { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(40px, 8vw, 110px); align-items: start; }
.newsletter-grid h2 { margin: 0; color: #454545; font-size: clamp(2.1rem, 4vw, 3.8rem); }
.newsletter-grid > :last-child { max-width: 42rem; }
.newsletter-grid .primary-button { width: fit-content; margin-top: 22px; }

.article-shell { width: min(76%, 920px); }
.knowledge-article { max-width: 760px; margin-inline: auto; }
.article-byline { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; margin-bottom: 52px; padding-block: 16px; border-top: 1px solid #d6d6d1; border-bottom: 1px solid #d6d6d1; color: #6a6a66; font-size: .72rem; }
.article-byline a { color: #007fa3; text-decoration: underline; text-underline-offset: 3px; }
.article-lead { margin-bottom: 64px; color: #454545; font-size: clamp(1.18rem, 2.1vw, 1.65rem); font-weight: 700; line-height: 2; }
.knowledge-article h2 { margin: 72px 0 24px; color: #454545; font-size: clamp(1.45rem, 2.5vw, 2rem); line-height: 1.7; }
.knowledge-article h3 { margin: 42px 0 16px; color: #007fa3; font-size: 1.12rem; line-height: 1.7; }
.knowledge-article p, .knowledge-article li { color: #5d5d59; }
.knowledge-article li + li { margin-top: 10px; }
.knowledge-article strong { color: #454545; }

.source-panel { margin-top: 80px; padding: 34px; background: #eaeaea; }
.source-panel h2 { margin-top: 0; font-size: 1.25rem; }
.source-panel p { font-size: .78rem; }
.source-panel ul { margin: 20px 0 0; padding-left: 1.2em; }
.source-panel a { color: #007fa3; text-decoration: underline; text-underline-offset: 3px; }

.related-topics { margin-top: 80px; }
.related-topics h2 { font-size: 1.25rem; }
.related-topics > div { border-top: 1px solid #454545; }
.related-topics a { display: flex; min-height: 74px; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid #d6d6d1; font-weight: 700; }
.related-topics a:hover { color: #007fa3; }

.topic-index { max-width: 1040px; }
.topic-feature { padding: clamp(38px, 6vw, 72px); color: #fff; background: #007fa3; }
.topic-feature > span { color: #e0e05c; font-size: .72rem; font-weight: 700; }
.topic-feature h2 { margin: 18px 0; font-size: clamp(1.8rem, 4vw, 3.4rem); }
.topic-feature p { max-width: 45rem; color: rgba(255,255,255,.82); }
.topic-feature .primary-button { margin-top: 18px; color: #454545; background: #e0e05c; }
.topic-list { margin-top: 52px; border-top: 1px solid #454545; }
.topic-list a { position: relative; display: grid; min-height: 150px; grid-template-columns: minmax(220px, 1fr) 2fr 40px; align-items: center; gap: 36px; border-bottom: 1px solid #d6d6d1; }
.topic-list a:hover { color: #007fa3; }
.topic-list h2 { margin: 0; font-size: 1.25rem; }
.topic-list p { margin: 0; color: #6a6a66; font-size: .82rem; }
.topic-list a > span { color: #007fa3; font-size: 1.4rem; text-align: right; }

.entity-grid { display: grid; grid-template-columns: 4fr 7fr; gap: clamp(42px, 8vw, 110px); align-items: start; }
.entity-aside { position: sticky; top: 40px; }
.entity-aside > img { max-height: 620px; object-fit: cover; filter: grayscale(12%) saturate(80%); }
.entity-facts { margin: 0; border-top: 1px solid #454545; }
.entity-facts div { padding: 15px 0; border-bottom: 1px solid #d6d6d1; }
.entity-facts dt { color: #007fa3; font-size: .66rem; font-weight: 700; }
.entity-facts dd { margin: 3px 0 0; color: #454545; font-size: .78rem; }
.verification-note { margin-top: 72px; padding: 32px; border: 1px solid #d6d6d1; }
.verification-note h2 { margin-top: 0; }

.new-badge { position: absolute; top: -14px; right: -8px; display: grid; width: 64px; height: 64px; place-items: center; border-radius: 50%; color: #454545; background: #e0e05c; font-family: Arial, sans-serif; font-size: .7rem; font-weight: 700; letter-spacing: .1em; }
.book-cover { position: relative; }

.faq-list { border-top: 1px solid #454545; }
.faq-list details { border-bottom: 1px solid #d6d6d1; }
.faq-list summary { display: flex; min-height: 92px; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; color: #454545; font-weight: 700; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: #007fa3; font-size: 1.4rem; transition: transform .3s var(--ease); }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details > div { padding: 0 48px 28px 0; }
.faq-list p { margin: 0; color: #5d5d59; }

@media (max-width: 1080px) {
  .nav-list a { padding-inline: 8px; font-size: .68rem; }
}

@media (max-width: 820px) {
  .brand { width: 220px; font-size: .7rem; letter-spacing: .08em; }
  .authority-grid, .newsletter-grid, .entity-grid { display: block; }
  .authority-grid > :last-child, .newsletter-grid > :last-child { margin-top: 44px; }
  .article-shell { width: 84%; }
  .entity-aside { position: static; max-width: 500px; margin-bottom: 58px; }
  .topic-list a { grid-template-columns: 1fr 34px; gap: 10px 20px; padding-block: 28px; }
  .topic-list p { grid-column: 1; }
  .topic-list a > span { grid-column: 2; grid-row: 1 / 3; }
}

@media (max-width: 560px) {
  .breadcrumbs { padding-top: 96px; }
  .page-hero + .content-section { padding-top: 64px; }
  .article-byline { display: grid; margin-bottom: 40px; }
  .article-lead { margin-bottom: 48px; }
  .knowledge-article h2 { margin-top: 58px; }
  .source-panel, .verification-note { padding: 24px 20px; }
  .related-topics, .source-panel { margin-top: 64px; }
  .topic-feature { padding: 34px 24px; }
  .topic-feature .primary-button, .authority-copy .primary-button, .newsletter-grid .primary-button { width: 100%; }
  .topic-list a { min-height: 132px; }
  .faq-list summary { min-height: 86px; font-size: .9rem; }
  .faq-list details > div { padding-right: 0; }
}