@charset "UTF-8";
/* =========================================================
   PROPOSE DIAMOND — base (共通)
   ========================================================= */
:root {
  --navy: #1b2a52;
  --navy-deep: #111b38;
  --navy-soft: #2c3f74;
  --gold: #b89a63;
  --gold-light: #d9c59c;
  --ivory: #f7f4ee;
  --greige: #ece6db;
  --text: #2a2a33;
  --text-sub: #6b6a70;
  --line: #dcd5c8;
  --white: #fff;
  --error: #b3364a;
  --font-ja: "Shippori Mincho", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  --font-sans: "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  --font-en: "Cormorant Garamond", "Times New Roman", serif;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* reset */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; vertical-align: middle; border: 0; }
a { color: inherit; text-decoration: none; transition: opacity .3s, color .3s, background-color .3s, border-color .3s; }
button, input, select, textarea { font: inherit; color: inherit; }

body {
  font-family: var(--font-ja);
  color: var(--text);
  background: var(--ivory);
  line-height: 2;
  letter-spacing: .08em;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------- header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  transition: background-color .4s var(--ease), box-shadow .4s var(--ease);
}
.site-header.is-scrolled,
.site-header.is-solid { background: rgba(17, 27, 56, .94); box-shadow: 0 1px 0 rgba(255,255,255,.06); }
.site-header__logo img { display: block; width: auto; }
.site-header--top:not(.is-scrolled) .site-header__logo { opacity: 0; pointer-events: none; }
.site-header__nav { display: flex; align-items: center; }
.site-header__nav a {
  font-family: var(--font-en); color: var(--white); letter-spacing: .18em; font-size: 14px;
}
.site-header__nav a:hover { color: var(--gold-light); }
.site-header__nav .btn-contact {
  border: 1px solid rgba(217, 197, 156, .7); color: var(--gold-light);
}
.site-header__nav .btn-contact:hover { background: var(--gold); border-color: var(--gold); color: var(--white); }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden; color: var(--white);
  display: flex; align-items: center; justify-content: center; text-align: center;
  background: var(--navy-deep);
}
.hero__bg { position: absolute; inset: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(17,27,56,.15) 0%, rgba(17,27,56,.35) 55%, rgba(17,27,56,.75) 100%);
}
.hero__inner { position: relative; z-index: 1; }
.hero__logo { margin: 0 auto; }
.hero__title {
  font-weight: 500; letter-spacing: .3em; line-height: 1.9;
  text-shadow: 0 2px 18px rgba(0,0,0,.35);
}
.hero__title span { display: inline-block; }
.hero__rule { display: block; width: 56px; height: 1px; background: var(--gold-light); margin: 0 auto; }
.hero__sub { letter-spacing: .4em; color: var(--gold-light); }
.hero__scroll {
  position: absolute; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 1;
  font-family: var(--font-en); font-size: 11px; letter-spacing: .3em; color: rgba(255,255,255,.75);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.hero__scroll::after {
  content: ""; width: 1px; height: 48px; background: linear-gradient(rgba(255,255,255,.8), rgba(255,255,255,0));
  animation: scrollLine 2.4s var(--ease) infinite;
  transform-origin: top;
}
@keyframes scrollLine { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ---------- section common ---------- */
.section { position: relative; }
.section--white { background: var(--white); }
.section--greige { background: var(--greige); }
.section--navy { background: var(--navy); color: var(--white); }
.inner { margin: 0 auto; }

.sec-head { text-align: center; }
.sec-head__en {
  display: block; font-family: var(--font-en); font-weight: 400; color: var(--gold);
  letter-spacing: .32em; line-height: 1.2; text-transform: uppercase;
}
.sec-head__ja { display: block; font-weight: 500; letter-spacing: .2em; }
.sec-head__ja::after {
  content: ""; display: block; width: 40px; height: 1px; background: var(--gold); margin: 22px auto 0;
}
.section--navy .sec-head__en { color: var(--gold-light); }
.section--navy .sec-head__ja::after { background: var(--gold-light); }

.lead { text-align: center; }
.lead p + p { margin-top: 1.2em; }

/* ---------- catch ---------- */
.catch { text-align: center; }
.catch__voice {
  display: inline-block; position: relative; font-weight: 500; letter-spacing: .14em; line-height: 1.8;
  color: var(--navy);
}
.catch__ring { display: block; margin: 0 auto; }
.catch__question { color: var(--gold); letter-spacing: .16em; }
.worries {
  margin: 0 auto; background: var(--white); border: 1px solid var(--line); position: relative;
}
.worries::before {
  content: ""; position: absolute; inset: 8px; border: 1px solid var(--greige); pointer-events: none;
}
.worries li { position: relative; letter-spacing: .14em; line-height: 1.9; }
.worries li + li { border-top: 1px solid var(--line); }
.catch__answer p { letter-spacing: .12em; }
.catch__answer strong { font-weight: 600; color: var(--navy); }
.catch__answer .plan {
  display: inline-block; border-bottom: 1px solid var(--gold); padding-bottom: 2px;
}

/* ---------- concept ---------- */
.concept { color: var(--white); overflow: hidden; }
.concept__bg { position: absolute; inset: 0; }
.concept__bg img { width: 100%; height: 100%; object-fit: cover; }
.concept__bg::after { content: ""; position: absolute; inset: 0; background: rgba(17,27,56,.72); }
.concept .inner { position: relative; z-index: 1; text-align: center; }
.concept__copy { font-weight: 500; letter-spacing: .3em; line-height: 2.2; }
.concept__copy em {
  display: block; font-style: normal; color: var(--gold-light); letter-spacing: .4em;
}
.concept__text { letter-spacing: .14em; color: rgba(255,255,255,.9); }

/* ---------- flow ---------- */
.flow__list { display: grid; counter-reset: flow; }
.flow__item { text-align: center; position: relative; }
.flow__num {
  display: block; font-family: var(--font-en); color: var(--gold); letter-spacing: .25em; font-size: 14px;
}
.flow__num b { font-weight: 400; font-size: 2.2em; letter-spacing: 0; margin-left: .2em; }
.flow__img {
  display: block; margin: 0 auto; border-radius: 50%;
  box-shadow: 0 18px 40px -18px rgba(27,42,82,.45);
}
.flow__title { font-weight: 600; color: var(--navy); letter-spacing: .14em; }
.flow__text { color: var(--text-sub); letter-spacing: .08em; }
.flow__human { display: block; margin: 0 auto; }

/* ---------- feature (case / quality) ---------- */
.feature { display: grid; align-items: center; }
.feature__photo img { display: block; margin: 0 auto; filter: drop-shadow(0 24px 40px rgba(27,42,82,.18)); }
.feature__body { text-align: center; }
.feature__title { font-weight: 500; color: var(--navy); letter-spacing: .16em; line-height: 1.8; }
.feature__title::after {
  content: ""; display: block; width: 1px; height: 36px; background: var(--gold); margin: 22px auto;
}
.feature__text { letter-spacing: .1em; }

/* ---------- shop ---------- */
.shop__lead { text-align: center; }
.shop-tabs { display: flex; flex-wrap: wrap; justify-content: center; }
.shop-tabs button {
  appearance: none; background: transparent; border: 1px solid var(--line); cursor: pointer;
  color: var(--text); letter-spacing: .12em; transition: all .3s var(--ease);
}
.shop-tabs button:hover { border-color: var(--gold); color: var(--navy); }
.shop-tabs button[aria-pressed="true"] { background: var(--navy); border-color: var(--navy); color: var(--white); }
.shop-list { display: grid; }
.shop-empty { text-align: center; color: var(--text-sub); padding: 40px 0; }
.shop-empty[hidden] { display: none; }
.shop-card {
  background: var(--white); display: flex; flex-direction: column;
  border: 1px solid #ebe5da; transition: box-shadow .4s var(--ease), transform .4s var(--ease);
}
.shop-card:hover { box-shadow: 0 20px 40px -24px rgba(27,42,82,.35); transform: translateY(-3px); }
.shop-card[hidden] { display: none; }
.shop-card__img { aspect-ratio: 7 / 3; overflow: hidden; background: var(--greige); }
.shop-card__img img { width: 100%; height: 100%; object-fit: cover; }
.shop-card__body { display: flex; flex-direction: column; flex: 1; }
.shop-card__pref {
  font-family: var(--font-en); color: var(--gold); letter-spacing: .3em; font-size: 13px; line-height: 1.4;
}
.shop-card__name { font-weight: 600; color: var(--navy); letter-spacing: .06em; line-height: 1.6; }
.shop-card__addr { font-family: var(--font-sans); color: var(--text-sub); letter-spacing: .04em; line-height: 1.8; flex: 1; }
.shop-card__tel a { color: var(--navy); border-bottom: 1px solid var(--line); }
.shop-card__btn {
  display: block; text-align: center; border: 1px solid var(--navy); color: var(--navy);
  font-family: var(--font-en); letter-spacing: .25em; line-height: 1; font-size: 13px;
}
.shop-card__btn:hover { background: var(--navy); color: var(--white); }

/* ---------- form ---------- */
.form-wrap { margin: 0 auto; background: var(--white); }
.form-note { font-family: var(--font-sans); color: var(--text-sub); letter-spacing: .04em; }
.req { color: var(--error); margin-right: .2em; }
.form-row { border-top: 1px solid #eee7da; }
.form-row:last-of-type { border-bottom: 1px solid #eee7da; }
.form-row__label { font-weight: 600; letter-spacing: .1em; color: var(--navy); line-height: 1.6; }
.form-row__label .badge {
  display: inline-block; font-family: var(--font-sans); font-size: 11px; font-weight: 500; letter-spacing: .1em;
  background: var(--navy); color: var(--white); padding: 2px 8px; margin-left: 10px; vertical-align: 2px; line-height: 1.6;
}
.form-row__label .badge--any { background: transparent; color: var(--text-sub); border: 1px solid var(--line); }
.form-row__field { font-family: var(--font-sans); letter-spacing: .04em; }
.form-row__field input[type="text"],
.form-row__field input[type="email"],
.form-row__field input[type="tel"],
.form-row__field select,
.form-row__field textarea {
  width: 100%; border: 1px solid var(--line); background: #fcfbf8; border-radius: 2px;
  padding: 12px 14px; font-size: 16px; line-height: 1.5; outline: none; transition: border-color .3s, box-shadow .3s;
}
.form-row__field input:focus, .form-row__field select:focus, .form-row__field textarea:focus {
  border-color: var(--gold); box-shadow: 0 0 0 3px rgba(184,154,99,.15); background: var(--white);
}
.form-row__field textarea { min-height: 180px; resize: vertical; }
.form-row__field .w-s { max-width: 220px; }
.form-row__field .w-xs { max-width: 120px; }
.form-row__field .inline { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.form-row__field .inline a { font-size: 13px; color: var(--navy); border-bottom: 1px solid var(--line); }
.addr-grid { display: grid; gap: 14px; }
.addr-grid label { display: block; font-size: 13px; color: var(--text-sub); margin-bottom: 4px; }
.field-error { display: none; color: var(--error); font-size: 13px; margin-top: 6px; letter-spacing: .04em; }
.is-invalid + .field-error, .field-error.is-shown { display: block; }
.is-invalid { border-color: var(--error) !important; background: #fdf6f7 !important; }
.form-actions { text-align: center; display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block; appearance: none; cursor: pointer; border: 1px solid var(--navy);
  background: var(--navy); color: var(--white); letter-spacing: .24em; line-height: 1;
  transition: background-color .3s, color .3s, border-color .3s;
}
.btn:hover { background: var(--gold); border-color: var(--gold); }
.btn--ghost { background: transparent; color: var(--navy); }
.btn--ghost:hover { background: var(--greige); color: var(--navy); border-color: var(--navy); }

/* confirm table */
.confirm-table { width: 100%; border-collapse: collapse; }
.confirm-table th, .confirm-table td { text-align: left; vertical-align: top; border-top: 1px solid #eee7da; }
.confirm-table tr:last-child th, .confirm-table tr:last-child td { border-bottom: 1px solid #eee7da; }
.confirm-table th { font-weight: 600; color: var(--navy); letter-spacing: .1em; }
.confirm-table td { font-family: var(--font-sans); word-break: break-all; }
.thanks-box { text-align: center; }
.thanks-box__no { font-family: var(--font-en); color: var(--navy); letter-spacing: .1em; }
.thanks-box p { font-family: var(--font-sans); letter-spacing: .04em; color: var(--text-sub); }

/* ---------- statement ---------- */
.page-head { background: var(--navy); color: var(--white); text-align: center; position: relative; overflow: hidden; }
.page-head::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 120%, rgba(217,197,156,.18), transparent 60%);
}
.page-head .inner { position: relative; }
.statement__img { margin: 0 auto; }
.statement__img img { display: block; width: 100%; }
.statement__text p { letter-spacing: .1em; }
.statement__text p + p { margin-top: 2em; }
.notes { font-family: var(--font-sans); color: var(--text-sub); letter-spacing: .03em; line-height: 1.9; }
.notes li { display: grid; grid-template-columns: 3em 1fr; }
.notes li + li { margin-top: .8em; }
.notes dt, .notes .mark { color: var(--navy); font-weight: 600; }

/* ---------- footer ---------- */
.site-footer { background: var(--navy-deep); color: rgba(255,255,255,.8); text-align: center; }
.site-footer__logo { margin: 0 auto; }
.site-footer__tm { font-size: 13px; letter-spacing: .1em; }
.site-footer__link {
  display: inline-block; border: 1px solid rgba(217,197,156,.6); color: var(--gold-light);
  letter-spacing: .14em; font-size: 14px;
}
.site-footer__link:hover { background: var(--gold); border-color: var(--gold); color: var(--white); }
.site-footer address { font-style: normal; font-family: var(--font-sans); font-size: 13px; letter-spacing: .06em; line-height: 2; }
.site-footer address a:hover { color: var(--gold-light); }
.site-footer__copy {
  font-family: var(--font-en); font-size: 12px; letter-spacing: .16em; color: rgba(255,255,255,.5);
  border-top: 1px solid rgba(255,255,255,.08);
}

/* ---------- animation ---------- */
.js-fade { opacity: 0; transform: translateY(24px); transition: opacity 1.2s var(--ease), transform 1.2s var(--ease); }
.js-fade.is-in { opacity: 1; transform: none; }
.js-fade[data-delay="1"] { transition-delay: .15s; }
.js-fade[data-delay="2"] { transition-delay: .3s; }
.js-fade[data-delay="3"] { transition-delay: .45s; }
.hero .js-fade { transition-duration: 1.8s; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js-fade { opacity: 1; transform: none; transition: none; }
  .hero__scroll::after { animation: none; }
}