:root {
  --ink: #050505;
  --ink-soft: #0b0b0b;
  --ivory: #f4f0e8;
  --paper: #fbfaf6;
  --copper: #bd8952;
  --copper-light: #dbb27b;
  --mist: #aaa6a0;
  --line-dark: rgba(244, 240, 232, .16);
  --line-light: rgba(7, 17, 31, .15);
  --serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  --sans: "Helvetica Neue", "Hiragino Sans", "Yu Gothic", YuGothic, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--ivory); color: var(--ink); font-family: var(--sans); }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.shell { width: min(1380px, calc(100% - 40px)); margin-inline: auto; }
.header { position: fixed; inset: 0 0 auto; z-index: 50; color: var(--ivory); border-bottom: 1px solid var(--line-dark); background: rgba(7, 17, 31, .9); backdrop-filter: blur(18px); }
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: grid; gap: 3px; }
.brand strong { font-size: .86rem; letter-spacing: .32em; }
.brand small, .eyebrow, .meta { font-size: .68rem; letter-spacing: .25em; text-transform: uppercase; }
.brand small { color: var(--copper-light); }
.nav-links { display: flex; gap: 28px; color: var(--mist); font-size: .72rem; letter-spacing: .17em; }
.nav-links a:hover { color: var(--copper-light); }

.hero { min-height: 100vh; padding-top: 76px; background: var(--ink); color: var(--ivory); overflow: hidden; position: relative; }
.hero::before { content: "YUKI"; position: absolute; left: 2%; top: 10%; font-size: clamp(9rem, 28vw, 30rem); font-weight: 700; line-height: .8; color: transparent; -webkit-text-stroke: 1px rgba(244, 240, 232, .07); }
.hero-grid { min-height: calc(100vh - 76px); display: grid; grid-template-columns: 1.02fr .98fr; align-items: stretch; }
.hero-copy { align-self: end; padding: 100px 7vw 100px 0; position: relative; z-index: 1; }
.eyebrow { color: var(--copper-light); font-weight: 700; }
.hero h1 { margin: 30px 0 0; font-family: var(--serif); font-size: clamp(3rem, 5.2vw, 5.9rem); line-height: 1.08; font-weight: 600; letter-spacing: -.04em; }
.hero-line { display: block; white-space: nowrap; }
.hero-lead { margin: 32px 0 0; max-width: 680px; color: #aaa6a0; font-size: clamp(1rem, 1.4vw, 1.18rem); line-height: 2; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button { min-height: 50px; padding: 0 25px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--copper); font-size: .72rem; font-weight: 700; letter-spacing: .18em; transition: .2s ease; }
.button.primary { background: var(--copper); color: var(--ink); }
.button:hover { background: var(--copper-light); border-color: var(--copper-light); color: var(--ink); }
.hero-image { min-height: 560px; position: relative; }
.hero-image img { width: 100%; height: 100%; object-fit: cover; object-position: 62% center; }
.hero-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--ink), transparent 34%), linear-gradient(0deg, rgba(5,5,5,.78), transparent 40%); }
.image-credit { position: absolute; z-index: 2; left: 34px; bottom: 30px; color: var(--ivory); }
.image-credit span { display: block; margin-top: 8px; color: var(--mist); font-size: .8rem; }

.statbar { color: var(--ivory); background: var(--ink); border-top: 1px solid var(--line-dark); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { min-height: 122px; padding: 28px 24px; border-left: 1px solid var(--line-dark); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat strong { display: block; color: var(--copper-light); font-family: var(--serif); font-size: clamp(1.75rem, 2.8vw, 2.3rem); font-weight: 500; white-space: nowrap; }
.stat span { display: block; margin-top: 9px; color: var(--mist); font-size: .72rem; letter-spacing: .1em; }

.section { padding: 130px 0; border-bottom: 1px solid var(--line-light); }
.section.dark { background: var(--ink-soft); color: var(--ivory); border-color: var(--line-dark); }
.section-head { display: grid; grid-template-columns: minmax(360px, .82fr) 1.18fr; gap: 72px; align-items: start; }
.section h2 { margin: 25px 0 0; max-width: 720px; font-family: var(--serif); font-size: clamp(2.6rem, 5vw, 5rem); line-height: 1.15; font-weight: 500; letter-spacing: -.035em; }
.section-intro { max-width: 760px; margin: 58px 0 0; color: #59636d; font-size: 1.08rem; line-height: 2; }
.dark .section-intro { color: var(--mist); }

.capability-grid { margin-top: 76px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.capability { min-height: 390px; padding: 34px 36px 38px; border-right: 1px solid var(--line-dark); display: flex; flex-direction: column; }
.capability:first-child { padding-left: 0; }
.capability:last-child { border-right: 0; }
.capability-no { color: var(--copper-light); font-family: var(--serif); font-size: 1.35rem; }
.capability h3 { margin: 70px 0 0; font-family: var(--serif); font-size: 2rem; line-height: 1.4; font-weight: 500; }
.capability p { margin: 22px 0 0; color: var(--mist); line-height: 1.9; }
.capability .tags { margin-top: auto; padding-top: 30px; }

.writing-card { margin-top: 74px; display: grid; grid-template-columns: 88px minmax(0, .92fr) minmax(300px, .58fr); border-top: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.writing-card + .writing-card { margin-top: 28px; }
.writing-no { padding-top: 34px; color: var(--copper); font-family: var(--serif); font-size: 1.4rem; }
.writing-main { padding: 34px 44px 42px 0; }
.writing-main h3 { margin: 0; font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 3rem); line-height: 1.4; font-weight: 500; }
.writing-main p { margin: 22px 0 0; color: #59636d; line-height: 1.9; }
.writing-side { padding: 34px 0 42px 42px; border-left: 1px solid var(--line-light); }
.fact { padding: 16px 0; border-bottom: 1px solid var(--line-light); }
.fact:first-child { padding-top: 0; }
.fact b { display: block; margin-bottom: 7px; color: var(--copper); font-size: .65rem; letter-spacing: .18em; }
.fact span { font-size: .92rem; line-height: 1.7; }

.field-grid { margin-top: 76px; display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-dark); }
.field { min-height: 235px; padding: 34px 42px 38px 0; border-bottom: 1px solid var(--line-dark); }
.field:nth-child(odd) { border-right: 1px solid var(--line-dark); }
.field:nth-child(even) { padding-left: 42px; }
.field-top { display: flex; justify-content: space-between; gap: 20px; }
.field h3 { margin: 0; font-size: 1.5rem; font-weight: 600; }
.field-top span { color: var(--copper-light); }
.field p { margin: 20px 0 0; color: var(--mist); line-height: 1.9; }
.tags { margin-top: 24px; color: #7e8994; font-size: .68rem; letter-spacing: .11em; text-transform: uppercase; }

.process { margin-top: 76px; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line-light); }
.step { padding: 28px 25px 32px; border-right: 1px solid var(--line-light); }
.step:first-child { padding-left: 0; }
.step:last-child { border-right: 0; }
.step small { color: var(--copper); letter-spacing: .15em; }
.step h3 { min-height: 56px; margin: 18px 0 0; font-size: 1.08rem; line-height: 1.6; }
.step p { margin: 18px 0 0; color: #68727b; font-size: .86rem; line-height: 1.8; }

.profile-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 90px; }
.profile-copy { color: var(--mist); font-size: 1.05rem; line-height: 2.05; }
.profile-copy p:first-child { margin-top: 0; }
.profile-facts { margin-top: 40px; display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line-dark); }
.profile-fact { padding: 24px; border-right: 1px solid var(--line-dark); }
.profile-fact:first-child { padding-left: 0; }
.profile-fact:last-child { border-right: 0; }
.profile-fact b { display: block; color: var(--copper-light); font-family: var(--serif); font-size: 1.5rem; font-weight: 500; }
.profile-fact span { display: block; margin-top: 8px; color: var(--mist); font-size: .72rem; line-height: 1.7; }

.record-list { margin-top: 76px; border-top: 1px solid var(--line-light); }
.record { display: grid; grid-template-columns: 85px minmax(180px, .65fr) 1.35fr; gap: 28px; padding: 28px 0; border-bottom: 1px solid var(--line-light); align-items: baseline; }
.record > span { color: var(--copper); font-family: var(--serif); font-size: 1.2rem; }
.record h3 { margin: 0; font-size: 1.18rem; }
.record p { margin: 0; color: #68727b; line-height: 1.8; }
.record-metric { display: inline-flex; align-items: baseline; gap: 9px; margin-bottom: 12px; color: var(--copper); }
.record-metric strong { font-family: var(--serif); font-size: 2.25rem; font-weight: 500; line-height: 1; }
.record-metric small { font-size: .68rem; letter-spacing: .1em; }
.inline-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 14px; color: var(--copper); font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; border-bottom: 1px solid currentColor; padding-bottom: 4px; }
.inline-link:hover { color: var(--ink); }
.dark .inline-link:hover { color: var(--copper-light); }

.closing { padding: 135px 0 105px; text-align: center; background: var(--ink); color: var(--ivory); }
.closing h2 { margin: 25px auto 0; max-width: 980px; font-family: var(--serif); font-size: clamp(3rem, 6vw, 6.5rem); line-height: 1.08; font-weight: 500; letter-spacing: -.045em; }
.closing p { max-width: 690px; margin: 28px auto 0; color: var(--mist); line-height: 2; }
.closing .button-row { justify-content: center; }
.contact-guide { max-width: 980px; margin: 54px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line-dark); text-align: left; }
.contact-item { min-height: 128px; padding: 28px 32px; border-right: 1px solid var(--line-dark); }
.contact-item:last-child { border-right: 0; }
.contact-item b { display: block; color: var(--copper-light); font-size: .68rem; letter-spacing: .16em; }
.contact-item span { display: block; margin-top: 14px; color: var(--ivory); font-size: .92rem; line-height: 1.8; }
.closing .contact-note { margin-top: 22px; font-size: .86rem; }
.footer { padding: 34px 0; background: var(--ink); color: var(--mist); border-top: 1px solid var(--line-dark); }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; font-size: .72rem; letter-spacing: .1em; }

.article-page { background: var(--paper); }
.article-header { padding: 150px 0 80px; background: var(--ink); color: var(--ivory); }
.back { color: var(--copper-light); font-size: .72rem; letter-spacing: .15em; }
.article-header h1 { max-width: 980px; margin: 38px 0 0; font-family: var(--serif); font-size: clamp(2.6rem, 5.4vw, 5.3rem); line-height: 1.2; font-weight: 500; letter-spacing: -.035em; }
.article-deck { max-width: 770px; margin-top: 30px; color: var(--mist); line-height: 2; }
.article-meta { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px 30px; color: var(--copper-light); font-size: .72rem; letter-spacing: .12em; }
.article-eyecatch { margin: 58px 0 -150px; position: relative; z-index: 2; }
.article-eyecatch img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; object-position: center; border: 1px solid rgba(227, 178, 142, .3); box-shadow: 0 28px 70px rgba(0, 0, 0, .32); }
.article-eyecatch.article-eyecatch--standalone { margin: -34px auto 0; }
.article-body { width: min(820px, calc(100% - 40px)); margin: 0 auto; padding: 230px 0 120px; }
.article-body.article-body--after-eyecatch { padding-top: 96px; }
.article-body h2 { margin: 80px 0 25px; font-family: var(--serif); font-size: clamp(1.8rem, 3.5vw, 2.7rem); line-height: 1.5; font-weight: 600; }
.article-body h2:first-child { margin-top: 0; }
.article-body h3 { margin: 46px 0 18px; font-size: clamp(1.25rem, 2.4vw, 1.65rem); line-height: 1.6; font-weight: 700; }
.article-body p { margin: 0 0 1.5em; font-size: 1rem; line-height: 2.05; }
.article-body > p a { color: #875c32; text-decoration: underline; text-underline-offset: 4px; }
.article-body .note { padding: 28px 32px; margin: 38px 0; border-left: 3px solid var(--copper); background: #f0ebe1; }
.article-inline-image { margin: 36px 0 46px; }
.article-inline-image img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border: 1px solid #d7cec2; }
.article-inline-image figcaption { margin-top: 10px; color: #7b746c; font-size: .72rem; letter-spacing: .06em; text-align: right; }
.article-body ul, .article-body ol { padding-left: 1.5em; line-height: 2; }
.article-body li + li { margin-top: .35em; }
.article-formula { margin: 32px 0; padding: 24px 28px; border-block: 1px solid var(--copper); background: #f0ebe1; font-family: var(--serif); font-size: clamp(1.05rem, 2.2vw, 1.35rem); line-height: 1.8; text-align: center; }
.article-table-wrap { margin: 38px 0 42px; overflow-x: auto; border-top: 2px solid var(--ink); border-bottom: 1px solid #b8afa3; }
.article-table { width: 100%; border-collapse: collapse; min-width: 620px; font-size: .93rem; line-height: 1.7; }
.article-table caption { padding: 15px 0; text-align: left; color: #6f665d; font-size: .78rem; letter-spacing: .06em; }
.article-table th, .article-table td { padding: 18px 16px; border-top: 1px solid #d7cec2; text-align: left; vertical-align: middle; }
.article-table thead th { background: var(--ink); color: var(--ivory); border-top: 0; font-size: .74rem; letter-spacing: .08em; }
.article-table tbody th { width: 25%; font-weight: 700; }
.article-table td:nth-child(2) { width: 12%; text-align: center; }
.travel-schedule { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin: 36px 0 54px; }
.travel-day { padding: 30px; background: #f0ebe1; border-top: 2px solid var(--copper); }
.travel-day .meta { margin-bottom: 10px; color: #875c32; }
.travel-day h3 { margin: 0 0 20px; font-family: var(--serif); }
.travel-day ol { margin: 0; padding: 0; list-style: none; }
.travel-day li { display: grid; grid-template-columns: 66px 1fr; gap: 14px; padding: 14px 0; border-top: 1px solid #d7cec2; line-height: 1.65; }
.travel-day li + li { margin-top: 0; }
.travel-day time { color: #875c32; font-weight: 700; }
.travel-tip { display: grid; grid-template-columns: 150px 1fr; gap: 22px; margin: 32px 0 52px; padding: 24px 28px; border: 1px solid #d7cec2; }
.travel-tip b { color: #875c32; }
.travel-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 38px 0 60px; border-block: 1px solid #cfc4b7; }
.travel-grid section { padding: 28px 22px; border-right: 1px solid #cfc4b7; }
.travel-grid section:last-child { border-right: 0; }
.travel-grid span { color: #875c32; font-size: .72rem; letter-spacing: .14em; }
.travel-grid h3 { margin: 12px 0 8px; font-family: var(--serif); }
.travel-grid p { margin-bottom: 0; font-size: .9rem; line-height: 1.8; }
.travel-points { margin: 34px 0 60px; border-top: 1px solid #cfc4b7; }
.travel-points section { display: grid; grid-template-columns: 52px 1fr; gap: 20px; padding: 26px 0; border-bottom: 1px solid #cfc4b7; }
.travel-points b { color: #875c32; font-size: .76rem; letter-spacing: .12em; }
.travel-points h3 { margin: -7px 0 8px; font-family: var(--serif); }
.travel-points p { margin-bottom: 0; }
.travel-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 42px 0; background: var(--ink); color: var(--ivory); }
.travel-summary div { display: grid; gap: 8px; padding: 30px 24px; border-right: 1px solid var(--line-dark); }
.travel-summary div:last-child { border-right: 0; }
.travel-summary strong { color: var(--copper-light); font-family: var(--serif); font-size: 2.8rem; line-height: 1; }
.travel-summary span { font-weight: 700; }
.travel-summary small { color: var(--mist); line-height: 1.6; }
.rating { color: var(--copper); font-size: 1.45rem; }
.rating-best { color: #9e4e2f; }
.rating-low { color: #7b746c; }
.references { margin-top: 80px; padding-top: 30px; border-top: 1px solid var(--line-light); font-size: .88rem; color: #59636d; }
.references a { text-decoration: underline; text-underline-offset: 4px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { padding: 90px 0 70px; }
  .hero-image { min-height: 54vh; }
  .hero-image::after { background: linear-gradient(180deg, var(--ink), transparent 30%), linear-gradient(0deg, rgba(7,17,31,.7), transparent 50%); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
  .section, .closing { padding-block: 90px; }
  .section-head, .profile-grid { grid-template-columns: 1fr; gap: 36px; }
  .section-intro { margin-top: 0; }
  .writing-card { grid-template-columns: 60px 1fr; }
  .writing-side { grid-column: 2; padding: 28px 0 38px; border-left: 0; border-top: 1px solid var(--line-light); }
  .process { grid-template-columns: 1fr 1fr; }
  .step { border-bottom: 1px solid var(--line-light); }
  .step:nth-child(odd) { padding-left: 0; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability, .capability:first-child { min-height: auto; padding: 30px 0; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .capability:last-child { border-bottom: 0; }
  .capability h3 { margin-top: 34px; }
  .capability .tags { margin-top: 25px; padding-top: 0; }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 28px, 1380px); }
  .hero-copy { padding-top: 68px; }
  .hero h1 { font-size: clamp(2.25rem, 10vw, 2.75rem); }
  .hero-line { white-space: nowrap; }
  .hero-image { min-height: 430px; margin-inline: -14px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { min-height: 104px; padding: 22px 15px; }
  .stat:nth-child(odd) { border-left: 0; }
  .stat strong { font-size: 1.6rem; }
  .writing-card { grid-template-columns: 42px 1fr; }
  .writing-main { padding-right: 0; }
  .field-grid { grid-template-columns: 1fr; }
  .field, .field:nth-child(even) { min-height: auto; padding: 28px 0; border-right: 0; }
  .process { grid-template-columns: 1fr; }
  .step, .step:nth-child(n) { padding: 25px 0; border-right: 0; }
  .step h3 { min-height: auto; }
  .profile-facts { grid-template-columns: 1fr; }
  .profile-fact, .profile-fact:first-child { padding: 20px 0; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .profile-fact:last-child { border-bottom: 0; }
  .contact-guide { grid-template-columns: 1fr; }
  .contact-item { min-height: auto; padding: 22px 0; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .contact-item:last-child { border-bottom: 0; }
  .footer-inner { flex-direction: column; }
  .article-header { padding-top: 125px; }
  .article-eyecatch { margin-top: 40px; margin-bottom: -90px; }
  .article-eyecatch.article-eyecatch--standalone { margin-top: -24px; margin-bottom: 0; }
  .article-body { padding-top: 155px; }
  .article-body.article-body--after-eyecatch { padding-top: 68px; }
  .article-body .note { padding: 22px; }
  .travel-schedule, .travel-grid, .travel-summary { grid-template-columns: 1fr; }
  .travel-grid section, .travel-summary div { border-right: 0; border-bottom: 1px solid #cfc4b7; }
  .travel-grid section:last-child, .travel-summary div:last-child { border-bottom: 0; }
  .travel-tip { grid-template-columns: 1fr; gap: 8px; }
  .record { grid-template-columns: 42px 1fr; }
  .record p { grid-column: 2; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }