/* ============================================================
   DESIGN M — DARK LUX  (フルダーク・ラグジュアリー)
   ページ全体がダーク。中立の near-black(#0f1319 系)＋ブランドの暗色を
   薄く重ね、アクセント（ゴールド var(--accent)）の細線・数字・微光で
   上質な高級感を表現。全ルールを .M 配下にスコープ。
   ブランド色は theme.css の変数のみ（16進ハードコード禁止／
   中立の黒・白・グレーはリテラル可）。
   ============================================================ */

.M {
  /* 局所の中立トーン（near-black + グレー：色みなしのリテラル） */
  --m-ink:   #0f1319;
  --m-ink2:  #0b0e13;
  --m-text:  #e9ebef;
  --m-soft:  rgba(233, 235, 239, .60);
  --m-faint: rgba(233, 235, 239, .38);
  --m-line:  rgba(255, 255, 255, .08);
  --m-line2: rgba(255, 255, 255, .15);

  color: var(--m-text);
  background:
    linear-gradient(180deg, var(--m-ink) 0%, color-mix(in srgb, var(--brand-ink) 55%, var(--m-ink2)) 100%);
}
.M .ph-img { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================
   HERO — 全面ダーク・静かな高級感
   ============================================================ */
.M-hero {
  position: relative; min-height: 100vh; overflow: hidden;
  display: flex; flex-direction: column;
  background:
    radial-gradient(120% 92% at 82% 8%, color-mix(in srgb, var(--brand) 42%, transparent), transparent 55%),
    linear-gradient(160deg, #10151d 0%, var(--m-ink2) 58%, var(--brand-ink) 100%);
}
.M-hero > .ph { position: absolute; inset: 0; z-index: 0; opacity: .16; mix-blend-mode: luminosity; }
.M-hero-glow {
  position: absolute; z-index: 1; top: -10%; right: -8%; width: 60%; height: 72%; pointer-events: none;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 30%, transparent), transparent 72%);
}
.M-hero-grain {
  position: absolute; z-index: 1; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(9, 12, 17, .55) 0%, transparent 24%),
    linear-gradient(180deg, transparent 42%, rgba(8, 11, 16, .78) 100%);
}

/* header (半透明の暗色バー) */
.M-head {
  position: relative; z-index: 5;
  display: flex; align-items: center; gap: 24px;
  padding: 34px 50px 22px;
  background: linear-gradient(180deg, rgba(9, 12, 17, .85) 0%, rgba(9, 12, 17, .38) 72%, transparent 100%);
  border-bottom: 1px solid var(--m-line);
}
.M-brand { display: flex; align-items: center; gap: 14px; }
.M-brand .name { font-family: var(--serif-jp); font-weight: 600; font-size: 21px; letter-spacing: .06em; line-height: 1.1; }
.M-brand .name small { display: block; font-family: var(--display); font-size: 9.5px; letter-spacing: .4em; color: var(--accent-2); margin-top: 4px; font-weight: 500; }
.M-nav { display: flex; gap: 30px; margin-left: auto; }
.M-nav a { position: relative; font-size: 13.5px; letter-spacing: .08em; color: rgba(255, 255, 255, .72); padding: 6px 0; transition: .25s; }
.M-nav a:hover, .M-nav a.active { color: #fff; }
.M-nav a.active::after, .M-nav a:hover::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--accent); }
.M-head-utils { display: flex; align-items: center; gap: 20px; padding-left: 22px; border-left: 1px solid var(--m-line2); }
.M-tel { display: flex; align-items: center; gap: 10px; color: #fff; }
.M-tel .num { display: block; font-family: var(--display); font-size: 20px; font-weight: 600; letter-spacing: .02em; line-height: 1.15; }
.M-tel .hrs { display: block; font-size: 10px; letter-spacing: .08em; color: var(--m-soft); }
.M-head-cta {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--accent); color: var(--accent-2);
  padding: 11px 18px; font-size: 12.5px; letter-spacing: .08em; transition: .3s; white-space: nowrap;
}
.M-head-cta:hover { background: var(--accent); color: var(--brand-ink); }

/* hero copy */
.M-hero-inner {
  position: relative; z-index: 4; flex: 1;
  display: flex; align-items: center;
  width: 100%; max-width: 1280px; margin: 0 auto; padding: 40px 50px 130px;
}
.M-eyebrow { display: inline-block; font-family: var(--display); font-size: 14px; letter-spacing: .32em; color: var(--accent-2); margin-bottom: 26px; }
.M-eyebrow::before { content: ""; display: inline-block; width: 38px; height: 1px; background: var(--accent); vertical-align: middle; margin-right: 16px; }
.M-hero h1 {
  font-family: "Shippori Mincho", var(--serif-jp); font-weight: 600;
  font-size: 60px; line-height: 1.45; letter-spacing: .03em; color: #fff;
  text-shadow: 0 10px 46px rgba(0, 0, 0, .5);
}
.M-hero h1 em { font-style: normal; color: var(--accent-2); }
.M-hero h1 .ul {
  background-image: linear-gradient(120deg, var(--accent), var(--accent-2));
  background-repeat: no-repeat; background-position: 0 92%; background-size: 100% .12em;
  padding-bottom: .05em;
}
.M-lead { margin-top: 30px; font-size: 15.5px; line-height: 2.1; color: var(--m-soft); }
.M-hero-btns { margin-top: 42px; display: flex; gap: 16px; flex-wrap: wrap; }
.M-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px 32px; font-size: 14.5px; letter-spacing: .05em; font-weight: 500; transition: .3s;
}
.M-btn.primary { background: var(--accent); color: var(--brand-ink); box-shadow: 0 18px 40px -14px color-mix(in srgb, var(--accent) 60%, transparent); }
.M-btn.primary:hover { background: var(--accent-2); transform: translateY(-2px); }
.M-btn.ghost { border: 1px solid var(--m-line2); color: #fff; }
.M-btn.ghost:hover { border-color: var(--accent); color: var(--accent-2); }

/* scroll cue */
.M-scroll {
  position: absolute; z-index: 5; right: 48px; bottom: 130px;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  writing-mode: vertical-rl; font-family: var(--display); font-size: 12px; letter-spacing: .4em;
  color: var(--m-faint);
}
.M-scroll::after { content: ""; width: 1px; height: 60px; background: linear-gradient(var(--accent), transparent); }

/* ============================================================
   SERVICES — ゴールド細枠のダークカード
   ============================================================ */
.M-services { position: relative; padding: 104px 0 108px; }
.M-sec-head { text-align: center; max-width: 1200px; margin: 0 auto; padding: 0 50px; }
.M-sec-en { font-family: var(--display); font-size: 15px; letter-spacing: .26em; color: var(--accent); text-transform: uppercase; }
.M-sec-en.gold { color: var(--accent-2); }
.M-sec-head h2 { font-family: "Shippori Mincho", var(--serif-jp); font-weight: 600; font-size: 33px; letter-spacing: .06em; color: #fff; margin-top: 10px; }
.M-sec-rule { width: 52px; height: 1px; background: var(--accent); margin: 22px auto 0; }

.M-trio {
  max-width: 1200px; margin: 56px auto 0; padding: 0 50px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
}
.M-card {
  position: relative; padding: 46px 34px 40px; overflow: hidden;
  background: linear-gradient(165deg, color-mix(in srgb, var(--brand) 26%, #10151d) 0%, #0d1118 100%);
  border: 1px solid var(--m-line2);
  transition: transform .4s, box-shadow .4s, border-color .4s;
}
.M-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .45; transition: opacity .4s;
}
.M-card:hover {
  transform: translateY(-6px); border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  box-shadow:
    0 30px 60px -26px rgba(0, 0, 0, .7),
    0 0 40px -8px color-mix(in srgb, var(--accent) 32%, transparent);
}
.M-card:hover::before { opacity: 1; }
.M-card-num { position: absolute; top: 24px; right: 30px; font-family: var(--display); font-size: 60px; font-weight: 400; line-height: 1; color: color-mix(in srgb, var(--accent) 18%, transparent); }
.M-card-ic { display: block; color: var(--accent); }
.M-card h3 { font-family: var(--serif-jp); font-weight: 600; font-size: 21px; letter-spacing: .04em; color: #fff; margin-top: 26px; }
.M-card-en { font-family: var(--display); font-size: 12px; letter-spacing: .2em; color: var(--accent); margin-top: 8px; }
.M-card p { margin-top: 18px; font-size: 13.5px; line-height: 2; color: var(--m-soft); }
.M-card-more { margin-top: 26px; display: inline-flex; align-items: center; gap: 16px; font-size: 12.5px; letter-spacing: .08em; color: var(--accent-2); }
.M-card-more .ar { width: 30px; height: 1px; background: currentColor; position: relative; transition: .3s; }
.M-card-more .ar::after { content: ""; position: absolute; right: 0; top: -3px; width: 6px; height: 6px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg); }
.M-card:hover .M-card-more .ar { width: 44px; }

/* ============================================================
   STATS band — 選ばれる理由・ゴールド巨大数字
   ============================================================ */
.M-stats {
  position: relative; overflow: hidden; padding: 88px 0;
  background: linear-gradient(120deg, color-mix(in srgb, var(--brand) 34%, var(--m-ink2)) 0%, #090c11 100%);
  border-top: 1px solid var(--m-line); border-bottom: 1px solid var(--m-line);
}
.M-stats::before {
  content: ""; position: absolute; top: -42%; left: 50%; transform: translateX(-50%);
  width: 70%; height: 82%; pointer-events: none;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%);
}
.M-stats-wrap { position: relative; max-width: 1120px; margin: 0 auto; padding: 0 50px; }
.M-stats-head { text-align: center; }
.M-stats-head h2 { font-family: "Shippori Mincho", var(--serif-jp); font-weight: 600; font-size: 31px; letter-spacing: .06em; color: #fff; margin-top: 8px; }
.M-stats-grid { margin-top: 48px; display: grid; grid-template-columns: repeat(3, 1fr); }
.M-stat { position: relative; text-align: center; padding: 8px 20px; }
.M-stat + .M-stat::before { content: ""; position: absolute; left: 0; top: 12%; height: 76%; width: 1px; background: var(--m-line2); }
.M-stat-num { display: flex; align-items: baseline; justify-content: center; gap: 6px; }
.M-stat-num .big { font-family: var(--display); font-size: 78px; font-weight: 600; line-height: 1; color: var(--accent-2); text-shadow: 0 6px 32px color-mix(in srgb, var(--accent) 32%, transparent); }
.M-stat-num .unit { font-family: var(--serif-jp); font-size: 22px; color: var(--accent); }
.M-stat-lab { margin-top: 14px; font-family: var(--serif-jp); font-size: 16px; letter-spacing: .1em; color: #fff; }
.M-stat-en { margin-top: 6px; font-family: var(--display); font-size: 11px; letter-spacing: .26em; color: var(--m-faint); }

/* ============================================================
   NEWS — ダーク行＋細罫
   ============================================================ */
.M-news { padding: 96px 0; }
.M-news-wrap { max-width: 1120px; margin: 0 auto; padding: 0 50px; display: grid; grid-template-columns: 300px 1fr; gap: 30px; }
.M-news-head h2 { font-family: "Shippori Mincho", var(--serif-jp); font-weight: 600; font-size: 29px; color: #fff; margin-top: 8px; letter-spacing: .06em; }
.M-news-btn { margin-top: 30px; display: inline-flex; align-items: center; gap: 26px; border: 1px solid var(--m-line2); padding: 13px 24px; font-size: 12.5px; letter-spacing: .1em; color: var(--accent-2); transition: .3s; }
.M-news-btn:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.M-news-btn .ar { width: 26px; height: 1px; background: currentColor; position: relative; }
.M-news-btn .ar::after { content: ""; position: absolute; right: 0; top: -3px; width: 6px; height: 6px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg); }
.M-news-row { display: flex; align-items: center; gap: 26px; padding: 22px 6px; border-bottom: 1px solid var(--m-line); transition: .25s; }
.M-news-row:first-child { border-top: 1px solid var(--m-line); }
.M-news-row .date { font-family: var(--display); font-size: 17px; letter-spacing: .04em; color: var(--accent); min-width: 92px; }
.M-news-row .cat { font-size: 10px; letter-spacing: .12em; color: var(--m-soft); border: 1px solid var(--m-line2); padding: 4px 10px; }
.M-news-row .ttl { flex: 1; font-size: 14px; color: var(--m-text); }
.M-news-row .chev { color: var(--m-faint); transition: .25s; }
.M-news-row:hover { background: color-mix(in srgb, #fff 4%, transparent); }
.M-news-row:hover .ttl { color: #fff; }
.M-news-row:hover .chev { transform: translateX(5px); color: var(--accent); }

/* ============================================================
   CONTACT — ダーク＋ゴールドCTA（電話＋フォーム）
   ============================================================ */
.M-contact { position: relative; overflow: hidden; padding: 98px 0; }
.M-contact > .ph { position: absolute; inset: 0; z-index: 0; opacity: .14; mix-blend-mode: luminosity; }
.M-contact-grad { position: absolute; z-index: 1; inset: 0; background: linear-gradient(120deg, color-mix(in srgb, var(--brand) 30%, var(--m-ink2)) 0%, #090c11 100%); opacity: .94; }
.M-contact-glow { position: absolute; z-index: 1; inset: 0; pointer-events: none; background: radial-gradient(60% 60% at 78% 26%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%); }
.M-contact-wrap { position: relative; z-index: 2; max-width: 1120px; margin: 0 auto; padding: 0 50px; display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }
.M-contact-copy h2 { font-family: "Shippori Mincho", var(--serif-jp); font-weight: 600; font-size: 34px; line-height: 1.5; margin-top: 10px; letter-spacing: .04em; color: #fff; }
.M-contact-copy p { margin-top: 22px; font-size: 14px; line-height: 2; color: var(--m-soft); }
.M-tel-block { margin-top: 30px; display: inline-flex; align-items: center; gap: 16px; padding: 18px 26px; border: 1px solid var(--m-line2); color: #fff; transition: .3s; }
.M-tel-block .ic { color: var(--accent); display: inline-flex; }
.M-tel-block .big { display: block; font-family: var(--display); font-size: 27px; font-weight: 600; letter-spacing: .03em; }
.M-tel-block .sub { display: block; font-size: 11px; letter-spacing: .08em; color: var(--m-soft); }
.M-tel-block:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }

.M-form { background: linear-gradient(165deg, color-mix(in srgb, var(--brand) 20%, #10151d) 0%, #0c1016 100%); border: 1px solid var(--m-line2); padding: 34px 32px; display: flex; flex-direction: column; gap: 18px; }
.M-field { display: flex; flex-direction: column; gap: 8px; }
.M-field label { font-size: 12px; letter-spacing: .08em; color: var(--accent-2); }
.M-field input, .M-field textarea { font-family: var(--sans-jp); font-size: 14px; color: #fff; background: rgba(255, 255, 255, .04); border: 1px solid var(--m-line2); padding: 12px 14px; transition: .25s; resize: vertical; }
.M-field input::placeholder, .M-field textarea::placeholder { color: var(--m-faint); }
.M-field input:focus, .M-field textarea:focus { outline: none; border-color: var(--accent); background: rgba(255, 255, 255, .06); }
.M-submit { margin-top: 6px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 15px 22px; background: var(--accent); color: var(--brand-ink); font-size: 14.5px; font-weight: 600; letter-spacing: .06em; transition: .3s; }
.M-submit .ar { width: 22px; height: 1px; background: currentColor; position: relative; transition: .3s; }
.M-submit .ar::after { content: ""; position: absolute; right: 0; top: -3px; width: 6px; height: 6px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg); }
.M-submit:hover { background: var(--accent-2); }
.M-submit:hover .ar { width: 32px; }

/* ============================================================
   FOOTER — 共有Footer(variant B)を全面ダークに調整
   ============================================================ */
.M .ft { background: linear-gradient(180deg, #0b0e13 0%, #070a0e 100%); border-top: 1px solid var(--accent); }
.M .ft-brand .name small { color: var(--accent-2); }
.M .B-ftlinks a:hover, .M .ft-top a:hover { color: var(--accent-2); }
.M .ft-top a:hover .up, .M .ft-top a:hover .up::after { background: var(--accent-2); border-color: var(--accent-2); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1280px) {
  .M-hero h1 { font-size: 50px; }
  .M-head { padding: 30px 40px 22px; }
  .M-hero-inner { padding: 40px 40px 128px; }
  .M-sec-head, .M-trio, .M-stats-wrap, .M-news-wrap, .M-contact-wrap { padding-left: 40px; padding-right: 40px; }
}

@media (max-width: 1024px) {
  .M-nav { display: none; }
  .M-head { padding-top: 30px; }
  .M-trio { grid-template-columns: 1fr; max-width: 560px; }
  .M-contact-wrap { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 720px) {
  .M-head { flex-wrap: wrap; gap: 14px; padding: 26px 20px 18px; }
  .M-head-utils { padding-left: 0; border-left: none; margin-left: auto; }
  .M-tel { display: none; }
  .M-brand .name { font-size: 19px; }
  .M-hero-inner { padding: 30px 20px 104px; }
  .M-eyebrow { margin-bottom: 18px; font-size: 12px; letter-spacing: .24em; }
  .M-hero h1 { font-size: 30px; line-height: 1.5; }
  .M-lead { font-size: 14px; margin-top: 22px; }
  .M-hero-btns { gap: 12px; }
  .M-btn { flex: 1 1 100%; padding: 15px 24px; }
  .M-scroll { display: none; }

  .M-services { padding: 66px 0 70px; }
  .M-sec-head { padding: 0 20px; }
  .M-sec-head h2 { font-size: 26px; }
  .M-trio { margin-top: 38px; padding: 0 20px; gap: 20px; }
  .M-card { padding: 38px 26px 34px; }
  .M-card-num { font-size: 52px; }

  .M-stats { padding: 58px 0; }
  .M-stats-wrap { padding: 0 20px; }
  .M-stats-head h2 { font-size: 25px; }
  .M-stats-grid { grid-template-columns: 1fr; margin-top: 28px; }
  .M-stat { padding: 22px 0; }
  .M-stat + .M-stat::before { display: none; }
  .M-stat + .M-stat { border-top: 1px solid var(--m-line2); }
  .M-stat-num .big { font-size: 62px; }

  .M-news { padding: 60px 0; }
  .M-news-wrap { grid-template-columns: 1fr; gap: 18px; padding: 0 20px; }
  .M-news-head h2 { font-size: 25px; }
  .M-news-btn { margin-top: 16px; }
  .M-news-row { gap: 8px 16px; flex-wrap: wrap; padding: 18px 4px; }
  .M-news-row .date { min-width: 0; font-size: 14px; }
  .M-news-row .cat { order: 3; }
  .M-news-row .ttl { flex: 1 1 100%; order: 4; }

  .M-contact { padding: 62px 0; }
  .M-contact-wrap { padding: 0 20px; }
  .M-contact-copy h2 { font-size: 26px; }
  .M-tel-block { width: 100%; }
  .M-form { padding: 26px 22px; }
}

@media (max-width: 400px) {
  .M-hero h1 { font-size: 26px; }
  .M-brand .name { font-size: 18px; }
  .M-stat-num .big { font-size: 54px; }
  .M-tel-block .big { font-size: 24px; }
}