:root {
  --ink: #1d2733;
  --ink-soft: #536170;
  --paper: #f7f5f0;
  --paper-2: #edf1f4;
  --navy: #1f3a5f;
  --navy-deep: #142840;
  --accent: #b5452f;
  --gold: #c8a45e;
  --line: rgba(29, 39, 51, .13);
  --radius: 10px;
  --serif: "Noto Serif JP", serif;
  --sans: "Noto Sans JP", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); line-height: 1.8; -webkit-text-size-adjust: 100%; overflow-wrap: anywhere; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.45; margin: 0; }
.wrap { width: min(1080px, 100% - 32px); margin-inline: auto; }
.wrap.narrow { width: min(720px, 100% - 32px); }

.sample-bar { background: var(--navy-deep); color: var(--gold); font-size: 12px; text-align: center; padding: 6px 16px; letter-spacing: .04em; }

/* header */
.site-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 16px; padding: 10px 24px; background: rgba(247, 245, 240, .94); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--navy); margin-right: auto; min-width: 0; }
.logo { width: 42px; height: 42px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.brand-name { font-family: var(--serif); font-weight: 700; font-size: 18px; color: var(--ink); letter-spacing: .04em; }
.brand-sub { font-size: 11px; color: var(--ink-soft); }
.brand-short { display: none; font-family: var(--serif); font-weight: 700; font-size: 16px; color: var(--ink); letter-spacing: .04em; }
.site-nav { display: flex; gap: 20px; font-size: 14px; }
.site-nav a { text-decoration: none; }
.site-nav a:hover { color: var(--navy); text-decoration: underline; }
.nav-reserve { color: var(--accent); font-weight: 500; }
.lang-switch { display: flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; flex-shrink: 0; }
.lang-switch button { border: 0; background: transparent; padding: 6px 12px; font: inherit; font-size: 13px; cursor: pointer; color: var(--ink-soft); }
.lang-switch button[aria-pressed="true"] { background: var(--navy); color: #fff; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 12px 24px; border-radius: 999px; font: inherit; font-weight: 500; text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: background .2s, color .2s; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #943622; }
.btn-ghost { background: transparent; border-color: currentColor; }
.btn-block { width: 100%; }

/* hero */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; align-items: center; gap: 24px; padding: 64px max(24px, calc((100% - 1080px) / 2)); background: var(--paper); }
.hero-body { padding: 8px 0; }
.hero-kicker { color: var(--navy); letter-spacing: .12em; font-size: 14px; margin: 0 0 16px; font-weight: 500; }
.hero-title { font-size: clamp(30px, 4.2vw, 48px); letter-spacing: .03em; color: var(--navy-deep); }
.hero-lead { color: var(--ink-soft); margin: 20px 0 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .btn-ghost { color: var(--navy); }
.hero-tags { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.hero-tags li { font-size: 12px; border: 1px solid rgba(31, 58, 95, .35); color: var(--navy); background: #fff; padding: 4px 12px; border-radius: 999px; }
.hero-art { margin: 0; }
.hero-art svg { width: 100%; height: auto; display: block; border-radius: 18px; }

/* sections */
section { padding: 88px 0; }
.sec-kicker { font-size: 12px; letter-spacing: .3em; color: var(--accent); margin: 0 0 8px; font-weight: 500; }
.sec-title { font-size: clamp(24px, 3vw, 32px); margin-bottom: 24px; color: var(--navy-deep); }
.sec-title.small { font-size: 18px; margin: 0; }
.sec-note { color: var(--ink-soft); margin-top: -8px; }
.small-note { font-size: 14px; margin-top: 24px; }

.news { padding: 28px 0; background: var(--paper-2); }
.news .wrap { display: flex; gap: 32px; align-items: flex-start; }
.news-list { list-style: none; margin: 0; padding: 0; flex: 1; }
.news-list li { display: flex; gap: 16px; padding: 4px 0; font-size: 14px; }
.news-list time { color: var(--navy); font-variant-numeric: tabular-nums; flex-shrink: 0; }

.points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.point { background: #fff; border-radius: var(--radius); padding: 28px; border-top: 3px solid var(--navy); }
.point-num { font-family: var(--serif); color: var(--gold); font-size: 22px; margin: 0 0 4px; }
.point h3 { font-size: 18px; margin-bottom: 8px; }
.point p:last-child { margin: 0; color: var(--ink-soft); font-size: 15px; }

.services { background: var(--navy-deep); color: #e8edf2; }
.services .sec-title { color: #fff; }
.services .sec-kicker { color: var(--gold); }
.services .sec-note { color: #b8c4d0; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service { background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12); border-radius: var(--radius); padding: 28px; }
.service-icon { width: 44px; height: 44px; color: var(--gold); margin-bottom: 12px; }
.service h3 { font-size: 20px; color: #fff; margin-bottom: 10px; }
.service p { margin: 0 0 14px; font-size: 15px; color: #c9d3dc; }
.service-list { margin: 0; padding: 0; list-style: none; font-size: 14px; }
.service-list li { padding: 6px 0 6px 18px; border-top: 1px dashed rgba(255, 255, 255, .18); position: relative; }
.service-list li::before { content: ""; position: absolute; left: 2px; top: 15px; width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }

.fee-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
.fee-block { background: #fff; border-radius: var(--radius); padding: 24px; border: 1px solid var(--line); }
.fee-block h3 { font-size: 18px; color: var(--navy); margin: 0 0 8px; }
.fee-list { margin: 0; }
.fee-list > div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: 15px; }
.fee-list > div:last-child { border-bottom: 0; }
.fee-list dd { margin: 0; font-variant-numeric: tabular-nums; white-space: nowrap; font-weight: 500; color: var(--navy-deep); }

.flow { background: var(--paper-2); }
.flow-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: f; }
.flow-list li { background: #fff; border-radius: var(--radius); padding: 22px 20px; counter-increment: f; position: relative; }
.flow-list li::before { content: counter(f); display: block; width: 32px; height: 32px; line-height: 32px; text-align: center; border-radius: 50%; background: var(--navy); color: #fff; font-family: var(--serif); margin-bottom: 10px; }
.flow-list b { display: block; font-family: var(--serif); font-size: 17px; color: var(--navy-deep); margin-bottom: 4px; }
.flow-list span { font-size: 14px; color: var(--ink-soft); }

.profile-grid { display: grid; grid-template-columns: 300px 1fr; gap: 56px; align-items: center; }
.portrait { margin: 0; text-align: center; }
.portrait svg { width: 100%; max-width: 280px; height: auto; }
.portrait figcaption { font-size: 12px; color: var(--ink-soft); }
.profile-text p { margin: 0 0 1em; }
.profile-sign { text-align: right; font-family: var(--serif); color: var(--navy); }
.profile-sign small { display: block; font-family: var(--sans); font-size: 12px; color: var(--ink-soft); }

.voices { background: var(--paper-2); }
.sample-tag { display: inline-block; font-size: 12px; background: var(--ink); color: var(--paper); padding: 2px 10px; border-radius: 4px; margin: -12px 0 24px; }
.voice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.voice { margin: 0; background: #fff; padding: 24px; border-radius: var(--radius); font-size: 15px; border-left: 3px solid var(--gold); }
.voice p { margin: 0 0 12px; }
.voice footer { font-size: 13px; color: var(--ink-soft); }

.faq details { background: #fff; border-radius: var(--radius); margin-bottom: 10px; border: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 16px 48px 16px 20px; font-weight: 500; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); color: var(--navy); font-size: 20px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0; padding: 0 20px 18px; color: var(--ink-soft); }

.access { background: #fff; }
.access-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.info { margin: 0; }
.info > div { display: grid; grid-template-columns: 6.5em 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.info dt { color: var(--navy); font-weight: 500; }
.info dd { margin: 0; }
.map { margin: 0; }
.map svg { width: 100%; height: auto; border-radius: var(--radius); display: block; }
.map figcaption { font-size: 12px; color: var(--ink-soft); margin-top: 8px; }

/* reservation */
.reserve { background: var(--navy-deep); color: #e8edf2; }
.reserve .sec-title { color: #fff; }
.reserve .sec-kicker { color: var(--gold); }
.demo-note { background: rgba(200, 164, 94, .15); border: 1px solid rgba(200, 164, 94, .5); color: var(--gold); padding: 10px 16px; border-radius: var(--radius); font-size: 14px; }
.steps { list-style: none; display: flex; padding: 0; margin: 28px 0; counter-reset: s; }
.steps li { flex: 1; text-align: center; font-size: 13px; color: #8797a8; counter-increment: s; }
.steps li::before { content: counter(s); display: block; width: 28px; height: 28px; line-height: 28px; margin: 0 auto 6px; border-radius: 50%; border: 1px solid #5c6f84; }
.steps li.is-current, .steps li.is-done { color: #fff; }
.steps li.is-current::before { background: var(--accent); border-color: var(--accent); }
.steps li.is-done::before { background: var(--gold); border-color: var(--gold); color: var(--navy-deep); }
.res-panel { background: var(--paper); color: var(--ink); border-radius: 14px; padding: 32px; }
.field { margin: 0 0 20px; border: 0; padding: 0; min-width: 0; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label, .field legend { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; padding: 0; }
.field input[type="text"], .field input[type="date"], .field select, .field textarea { width: 100%; font: inherit; font-size: 16px; padding: 10px 12px; border: 1px solid #c4ccd5; border-radius: 8px; background: #fff; color: var(--ink); }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--navy); outline-offset: 1px; }
.field .is-invalid { border-color: var(--accent); background: #fff6f4; }
.field-hint { font-size: 13px; opacity: .8; margin: 4px 0 0; }
.err { color: var(--accent); font-size: 13px; margin: 4px 0 0; }
.err:empty { display: none; }
.choice-options { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.choice-options.three { grid-template-columns: repeat(3, 1fr); }
.choice { position: relative; cursor: pointer; }
.choice input { position: absolute; opacity: 0; }
.choice span { display: block; text-align: center; padding: 12px 6px; border: 1px solid #c4ccd5; border-radius: 8px; background: #fff; }
.choice b { font-weight: 500; font-size: 15px; }
.choice input:checked + span { border-color: var(--navy); background: #e8eef5; box-shadow: inset 0 0 0 1px var(--navy); }
.choice input:focus-visible + span { outline: 2px solid var(--navy); outline-offset: 2px; }
.confirm-list { margin: 0 0 24px; }
.confirm-list > div { display: grid; grid-template-columns: 8em 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.confirm-list dt { color: var(--ink-soft); font-size: 14px; }
.confirm-list dd { margin: 0; word-break: break-all; white-space: pre-wrap; }
.confirm-actions { display: flex; gap: 12px; justify-content: flex-end; flex-wrap: wrap; }
.res-done { text-align: center; }
.res-done h3 { margin-bottom: 12px; color: var(--navy-deep); }
.res-done p { color: var(--ink-soft); }
.done-mark { width: 56px; height: 56px; line-height: 56px; margin: 0 auto 16px; border-radius: 50%; background: var(--navy); color: #fff !important; font-size: 28px; }
.res-panel .btn-ghost { color: var(--ink); }

/* footer */
.site-footer { background: #0e1c2d; color: #9fadbb; text-align: center; padding: 40px 16px 96px; font-size: 13px; }
.footer-brand { font-family: var(--serif); color: #fff; font-size: 18px; margin: 0 0 8px; }
.footer-sample { color: var(--gold); margin: 0 0 4px; }
.footer-credit { margin: 0; }

.sticky-reserve { display: none; }

/* スマホ */
@media (max-width: 820px) {
  .site-header { padding: 8px 16px; gap: 10px; }
  .site-nav { display: none; }
  .logo { width: 34px; height: 34px; }
  .brand-name { font-size: 15px; }
  .brand-sub, .brand-name { display: none; }
  .brand-short { display: block; }
  .hero { grid-template-columns: 1fr; padding: 36px 16px 44px; }
  .hero-art { order: -1; }
  section { padding: 64px 0; }
  .news .wrap { flex-direction: column; gap: 8px; }
  .news-list li { flex-direction: column; gap: 0; padding: 6px 0; }
  .points, .service-grid, .fee-grid, .voice-grid, .access-grid { grid-template-columns: 1fr; gap: 16px; }
  .access-grid { gap: 28px; }
  .flow-list { grid-template-columns: 1fr 1fr; }
  .profile-grid { grid-template-columns: 1fr; gap: 20px; }
  .portrait svg { max-width: 180px; }
  .res-panel { padding: 22px 18px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .choice-options { grid-template-columns: 1fr 1fr; }
  .confirm-list > div { grid-template-columns: 1fr; gap: 2px; }
  .confirm-actions .btn { flex: 1; }
  .sticky-reserve { display: block; position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 30; background: var(--accent); color: #fff; text-align: center; text-decoration: none; padding: 14px; border-radius: 999px; font-weight: 500; box-shadow: 0 6px 20px rgba(0, 0, 0, .3); transition: opacity .25s, transform .25s; }
  .sticky-reserve.is-hidden { opacity: 0; transform: translateY(16px); pointer-events: none; }
}
@media (max-width: 400px) {
  .flow-list { grid-template-columns: 1fr; }
  .lang-switch button { padding: 6px 9px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}