/* ============================================================
   099 SAMPLE ESTATE PARTNERS — 都市型不動産デベロッパー
   Palette : deep navy #0B1622 / surface #121F2E / ink #F2EFE9 / bronze #B08D57
   Fonts   : Marcellus (EN) × Zen Kaku Gothic New (JP)
   ============================================================ */

:root {
  --navy:      #0B1622;
  --navy-deep: #060D15;
  --surface:   #121F2E;
  --surface-2: #18293B;
  --ink:       #F2EFE9;
  --ink-mute:  #A9ADB0;   /* on navy 5.5:1 */
  --bronze:    #B08D57;   /* on navy 5.9:1 */
  --bronze-l:  #C7A46F;
  --line:      rgba(176, 141, 87, 0.32);
  --line-soft: rgba(242, 239, 233, 0.14);
  --en:  'Marcellus', serif;
  --jp:  'Zen Kaku Gothic New', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { overflow-x: hidden; scroll-behavior: smooth; }
body {
  overflow-x: hidden;
  padding-top: 36px; /* demo bar */
  background: var(--navy);
  color: var(--ink);
  font-family: var(--jp);
  font-weight: 400;
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }

/* ─── DEMO BAR ─────────────────────────────────────────── */
#demo-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 2000;
  background: var(--navy-deep);
  border-bottom: 1px solid var(--line);
  padding: 7px 0;
}
.demo-bar-inner {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  font-size: 0.7rem; color: rgba(242,239,233,0.4);
}
.demo-badge {
  font-family: var(--en);
  font-size: 0.56rem; font-weight: 400; letter-spacing: 0.2em; text-transform: uppercase;
  background: rgba(176,141,87,0.16); color: var(--bronze-l);
  padding: 3px 10px; flex-shrink: 0;
}
.demo-link { color: var(--bronze-l); font-weight: 700; text-decoration: underline; text-underline-offset: 2px; }
.demo-copy { color: rgba(242,239,233,0.22); font-size: 0.62rem; margin-left: 4px; }
@media (max-width: 640px) { .demo-copy { display: none; } }

/* ─── HEADER（ロゴのみ・ナビはフルスクリーンメニュー） ── */
.site-header {
  position: fixed; top: 36px; left: 0; right: 0; z-index: 900;
  padding: 22px 0;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
.site-header.is-scrolled {
  background: var(--navy-deep);
  box-shadow: 0 1px 0 var(--line-soft);
}
.site-header.menu-active {
  background: var(--navy) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
.header-inner { display: flex; align-items: center; justify-content: flex-start; }
.site-logo { display: flex; flex-direction: column; line-height: 1.3; }
.site-logo .logo-en {
  font-family: var(--en); font-size: 1.15rem; letter-spacing: 0.22em; color: var(--ink);
}
.site-logo .logo-jp { font-size: 0.6rem; letter-spacing: 0.3em; color: var(--ink-mute); }

/* ─── ハンバーガー（丸ボタン・PC共通） ─────────────── */
.menu-btn {
  position: fixed; top: 52px; right: 28px; z-index: 1100;
  width: 62px; height: 62px; border-radius: 50%;
  background: var(--navy);
  border: 1px solid var(--line);
  cursor: pointer;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 7px;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.menu-btn:hover, .menu-btn:focus-visible { border-color: var(--bronze); background: var(--surface); }
.menu-btn span {
  display: block; width: 22px; height: 1px; background: var(--ink);
  transition: transform 0.35s ease, opacity 0.35s ease;
}
.menu-btn.is-open span:nth-child(1) { transform: translateY(4px) rotate(24deg); }
.menu-btn.is-open span:nth-child(2) { transform: translateY(-4px) rotate(-24deg); }
.menu-btn .menu-btn-label {
  width: auto; height: auto; background: none;
  font-family: var(--en); font-size: 0.5rem; letter-spacing: 0.22em; color: var(--bronze-l);
}

/* ─── フルスクリーンナビ（clip-path circle 展開） ────── */
.fullnav {
  position: fixed; inset: 0;
  background: var(--navy); /* 不透明ソリッド。透明度・backdrop-filter 不使用 */
  z-index: 1000;
  clip-path: circle(0px at calc(100% - 59px) 83px);
  visibility: hidden;
  transition: clip-path 0.7s cubic-bezier(0.65, 0, 0.25, 1), visibility 0s linear 0.7s;
  overflow-y: auto;
}
.fullnav.is-open {
  clip-path: circle(160% at calc(100% - 59px) 83px);
  visibility: visible;
  transition: clip-path 0.7s cubic-bezier(0.65, 0, 0.25, 1), visibility 0s;
}
.fullnav-inner {
  min-height: 100%;
  display: flex; flex-direction: column; justify-content: center;
  padding: 120px 28px 80px;
  max-width: 680px; margin: 0 auto;
}
.mobile-nav-close {
  position: absolute; top: 56px; right: 110px;
  background: none; border: 1px solid var(--line);
  color: var(--ink); font-family: var(--jp); font-size: 0.78rem; letter-spacing: 0.14em;
  padding: 12px 22px; cursor: pointer;
  transition: border-color 0.3s ease, color 0.3s ease;
}
.mobile-nav-close:hover, .mobile-nav-close:focus-visible { border-color: var(--bronze); color: var(--bronze-l); }
.fullnav-list { border-top: 1px solid var(--line-soft); }
.fullnav-list li { border-bottom: 1px solid var(--line-soft); }
.fullnav-list a {
  display: flex; align-items: baseline; gap: 26px;
  padding: 22px 8px;
  opacity: 0; transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease, background 0.3s ease;
}
.fullnav.is-open .fullnav-list a { opacity: 1; transform: translateY(0); }
.fullnav.is-open .fullnav-list li:nth-child(1) a { transition-delay: 0.16s; }
.fullnav.is-open .fullnav-list li:nth-child(2) a { transition-delay: 0.24s; }
.fullnav.is-open .fullnav-list li:nth-child(3) a { transition-delay: 0.32s; }
.fullnav.is-open .fullnav-list li:nth-child(4) a { transition-delay: 0.40s; }
.fullnav.is-open .fullnav-list li:nth-child(5) a { transition-delay: 0.48s; }
.fullnav.is-open .fullnav-list li:nth-child(6) a { transition-delay: 0.56s; }
.fullnav-list a:hover { background: var(--surface); }
.fullnav-num {
  font-family: var(--en); font-size: 0.72rem; letter-spacing: 0.18em;
  color: var(--bronze); min-width: 34px;
}
.fullnav-label-en {
  font-family: var(--en); font-size: clamp(1.5rem, 3.4vw, 2.1rem); letter-spacing: 0.12em;
  color: var(--ink);
}
.fullnav-label-jp { font-size: 0.72rem; letter-spacing: 0.18em; color: var(--ink-mute); }
.mobile-nav-home {
  display: inline-block; margin-top: 40px;
  font-family: var(--en); font-size: 0.85rem; letter-spacing: 0.3em;
  color: var(--navy-deep) !important;
  background: var(--bronze);
  padding: 14px 46px;
  transition: background 0.3s ease;
}
.mobile-nav-home:hover, .mobile-nav-home:focus-visible { background: var(--bronze-l); }
.fullnav-foot { margin-top: 48px; font-size: 0.7rem; color: var(--ink-mute); letter-spacing: 0.1em; }

/* ─── REVEAL（CSS-only・JS非依存） ──────────────────── */
.reveal { opacity: 1; animation: reveal-in 1.1s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
.reveal-d1 { animation-delay: 0.12s; }
.reveal-d2 { animation-delay: 0.24s; }
.reveal-d3 { animation-delay: 0.36s; }
@keyframes reveal-in {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: none; }
}
.line-draw { position: relative; }
.line-draw::after {
  content: ""; display: block; height: 1px; background: var(--bronze);
  margin-top: 18px; width: 72px;
  transform-origin: left center;
  animation: line-grow 1.4s cubic-bezier(0.2, 0.7, 0.2, 1) 0.3s both;
}
@keyframes line-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (prefers-reduced-motion: reduce) {
  .reveal, .line-draw::after { animation: none !important; opacity: 1 !important; transform: none !important; }
}

/* ─── 共通見出し ────────────────────────────────────── */
.sec { padding: clamp(84px, 11vw, 150px) 0; }
.sec-label {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--en); font-size: 0.72rem; letter-spacing: 0.34em; text-transform: uppercase;
  color: var(--bronze-l); margin-bottom: 22px;
}
.sec-label::before { content: ""; width: 44px; height: 1px; background: var(--bronze); }
.sec-title {
  font-family: var(--en); font-weight: 400;
  font-size: clamp(1.9rem, 4.4vw, 3.1rem); letter-spacing: 0.1em; line-height: 1.25;
  margin-bottom: 14px;
}
.sec-title-jp { font-size: 0.85rem; letter-spacing: 0.22em; color: var(--ink-mute); margin-bottom: 40px; }
.sec-lead { max-width: 640px; color: var(--ink-mute); margin-bottom: 56px; }

/* ─── HERO（レイヤード：左テキスト / 右 clip-path 写真） */
.hero {
  position: relative;
  min-height: calc(100vh - 36px);
  display: flex; align-items: center;
  overflow: hidden;
}
.hero-media {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 54%;
  clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
  background: var(--surface);
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-inner { position: relative; z-index: 2; width: 100%; }
.hero-copy { max-width: 46%; padding: 120px 0 80px; }
.hero-eyebrow {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--en); font-size: 0.7rem; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--bronze-l); margin-bottom: 30px;
}
.hero-eyebrow::before { content: ""; width: 52px; height: 1px; background: var(--bronze); }
.hero-title-en {
  font-family: var(--en); font-weight: 400;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  letter-spacing: 0.06em; line-height: 1.18;
  margin-bottom: 26px;
}
.hero-title-jp {
  font-size: clamp(1.05rem, 1.8vw, 1.35rem); font-weight: 500;
  letter-spacing: 0.3em; margin-bottom: 26px;
}
.hero-lead { color: var(--ink-mute); font-size: 0.92rem; max-width: 420px; margin-bottom: 46px; }
.hero-cta-row { display: flex; flex-wrap: wrap; gap: 18px; }
.hero-scroll {
  position: absolute; left: 28px; bottom: 34px; z-index: 2;
  display: flex; align-items: center; gap: 12px;
  font-family: var(--en); font-size: 0.62rem; letter-spacing: 0.3em; color: var(--ink-mute);
}
.hero-scroll::after { content: ""; width: 64px; height: 1px; background: var(--line); }

/* ─── ボタン ────────────────────────────────────────── */
.btn-solid {
  display: inline-block;
  font-family: var(--en); font-size: 0.8rem; letter-spacing: 0.26em; text-transform: uppercase;
  background: var(--bronze); color: var(--navy-deep); /* 5.9:1 */
  padding: 17px 44px;
  transition: background 0.3s ease;
}
.btn-solid:hover, .btn-solid:focus-visible, .btn-solid:active { background: var(--bronze-l); color: var(--navy-deep); } /* 7.8:1 */
.btn-ghost {
  display: inline-block;
  font-family: var(--en); font-size: 0.8rem; letter-spacing: 0.26em; text-transform: uppercase;
  border: 1px solid rgba(242,239,233,0.55); color: var(--ink); /* 14.9:1 */
  padding: 16px 44px;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.btn-ghost:hover, .btn-ghost:focus-visible, .btn-ghost:active { background: var(--ink); color: var(--navy-deep); border-color: var(--ink); } /* 14.9:1 */
.btn-jp { font-family: var(--jp); letter-spacing: 0.18em; text-transform: none; font-weight: 500; }

/* ─── 統計バナー ────────────────────────────────────── */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--navy-deep); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat {
  padding: 54px 20px; text-align: center;
  border-left: 1px solid var(--line-soft);
}
.stat:first-child { border-left: none; }
.stat-num {
  font-family: var(--en); font-size: clamp(2.1rem, 3.6vw, 3rem); letter-spacing: 0.04em;
  color: var(--ink); line-height: 1.2;
}
.stat-num .unit { font-size: 0.45em; letter-spacing: 0.1em; color: var(--bronze-l); margin-left: 4px; }
.stat-label { margin-top: 10px; font-size: 0.72rem; letter-spacing: 0.22em; color: var(--ink-mute); }

/* ─── NEWS ──────────────────────────────────────────── */
.news-list { border-top: 1px solid var(--line-soft); }
.news-list li { border-bottom: 1px solid var(--line-soft); }
.news-row {
  display: flex; align-items: baseline; gap: 28px;
  padding: 24px 8px;
  transition: background 0.3s ease;
}
a.news-row:hover { background: var(--surface); }
.news-date { font-family: var(--en); font-size: 0.78rem; letter-spacing: 0.14em; color: var(--ink-mute); flex-shrink: 0; }
.news-cat {
  font-size: 0.62rem; letter-spacing: 0.2em; color: var(--bronze-l);
  border: 1px solid var(--line); padding: 3px 12px; flex-shrink: 0;
}
.news-title-t { font-size: 0.9rem; }
.news-more { margin-top: 36px; }

/* ─── BUSINESS ──────────────────────────────────────── */
.biz-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.biz-card { background: var(--navy); padding: 52px 46px; transition: background 0.4s ease; }
.biz-card:hover { background: var(--surface); }
.biz-head { display: flex; align-items: center; gap: 18px; margin-bottom: 20px; }
.biz-icon { flex-shrink: 0; width: 44px; height: 44px; color: var(--bronze-l); }
.biz-icon svg { width: 100%; height: 100%; }
.biz-num { font-family: var(--en); font-size: 0.68rem; letter-spacing: 0.2em; color: var(--bronze); display: block; margin-bottom: 6px; }
.biz-title { font-size: 1.08rem; font-weight: 700; letter-spacing: 0.12em; }
.biz-desc { font-size: 0.86rem; color: var(--ink-mute); }

/* ─── PROJECTS ──────────────────────────────────────── */
.proj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px 28px; }
.proj-card { display: block; }
.proj-media {
  aspect-ratio: 4 / 3; overflow: hidden; background: var(--surface);
  border: 1px solid var(--line-soft);
}
.proj-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1); }
.proj-card:hover .proj-media img { transform: scale(1.05); }
.proj-tag { font-family: var(--en); font-size: 0.62rem; letter-spacing: 0.26em; text-transform: uppercase; color: var(--bronze-l); margin-top: 18px; }
.proj-name { font-size: 1rem; font-weight: 700; letter-spacing: 0.08em; margin-top: 6px; }
.proj-meta { font-size: 0.76rem; color: var(--ink-mute); margin-top: 4px; }

/* ─── COMPANY / MESSAGE ─────────────────────────────── */
.company-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 70px; align-items: center; }
.company-media { background: var(--surface); border: 1px solid var(--line-soft); }
.company-media img { width: 100%; height: auto; }
.company-name-sign { margin-top: 30px; }
.company-name-sign .pos { font-size: 0.72rem; letter-spacing: 0.2em; color: var(--ink-mute); }
.company-name-sign .name { font-size: 1.15rem; font-weight: 700; letter-spacing: 0.24em; margin-top: 4px; }
.message-quote {
  font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 500; letter-spacing: 0.14em; line-height: 2.1;
  margin-bottom: 30px;
}
.message-body { color: var(--ink-mute); font-size: 0.9rem; }
.message-body p + p { margin-top: 1.4em; }

/* ─── 会社概要テーブル ──────────────────────────────── */
.co-table { width: 100%; border-collapse: collapse; }
.co-table th, .co-table td {
  text-align: left; padding: 22px 12px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.88rem; font-weight: 400; vertical-align: top;
}
.co-table th { width: 200px; color: var(--bronze-l); letter-spacing: 0.16em; font-family: var(--en); font-size: 0.74rem; text-transform: uppercase; padding-top: 26px; }

/* ─── 沿革 ──────────────────────────────────────────── */
.history-list { border-left: 1px solid var(--line); padding-left: 40px; }
.history-list li { position: relative; padding-bottom: 38px; }
.history-list li::before {
  content: ""; position: absolute; left: -44px; top: 10px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--bronze);
}
.history-year { font-family: var(--en); font-size: 0.95rem; letter-spacing: 0.16em; color: var(--bronze-l); }
.history-text { font-size: 0.88rem; color: var(--ink-mute); margin-top: 4px; }

/* ─── CTA ───────────────────────────────────────────── */
.cta { background: var(--navy-deep); border-top: 1px solid var(--line); text-align: center; }
.cta-title { font-family: var(--en); font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: 0.14em; margin-bottom: 18px; }
.cta-lead { color: var(--ink-mute); margin-bottom: 44px; }
.cta-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 20px; }
.cta-tel { margin-top: 34px; font-size: 0.8rem; color: var(--ink-mute); letter-spacing: 0.1em; }
.cta-tel .tel-num { font-family: var(--en); font-size: 1.5rem; color: var(--ink); letter-spacing: 0.12em; display: block; margin-top: 4px; }

/* ─── FOOTER ────────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--line-soft); padding: 70px 0 40px; background: var(--navy); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 50px; margin-bottom: 56px; }
.footer-logo .logo-en { font-family: var(--en); font-size: 1.2rem; letter-spacing: 0.22em; }
.footer-logo .logo-jp { font-size: 0.62rem; letter-spacing: 0.28em; color: var(--ink-mute); margin-top: 4px; }
.footer-addr { font-size: 0.78rem; color: var(--ink-mute); margin-top: 22px; font-style: normal; }
.footer-col-title { font-family: var(--en); font-size: 0.7rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--bronze-l); margin-bottom: 20px; }
.footer-nav li { margin-bottom: 12px; }
.footer-nav a { font-size: 0.82rem; color: var(--ink-mute); transition: color 0.3s ease; }
.footer-nav a:hover { color: var(--ink); }
.footer-bottom {
  border-top: 1px solid var(--line-soft); padding-top: 26px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 0.68rem; color: var(--ink-mute); letter-spacing: 0.12em;
}

/* ─── ページヘッダー（下層） ────────────────────────── */
.page-head { padding: clamp(90px, 12vw, 150px) 0 clamp(50px, 7vw, 90px); border-bottom: 1px solid var(--line-soft); }
.page-head-en { font-family: var(--en); font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: 0.1em; }
.page-head-jp { font-size: 0.85rem; letter-spacing: 0.26em; color: var(--ink-mute); margin-top: 12px; }
.breadcrumb { margin-top: 26px; font-size: 0.7rem; color: var(--ink-mute); letter-spacing: 0.1em; }
.breadcrumb a { color: var(--bronze-l); }

/* ─── CONTACT ───────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 70px; align-items: start; }
.contact-form-wrap { border: 1px solid var(--line-soft); padding: 50px 46px; background: var(--surface); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { margin-bottom: 26px; }
.form-field label { display: block; font-size: 0.8rem; letter-spacing: 0.14em; margin-bottom: 10px; }
.req {
  font-size: 0.6rem; color: var(--navy-deep); background: var(--bronze-l);
  padding: 2px 8px; margin-left: 10px; letter-spacing: 0.14em; vertical-align: middle;
}
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  background: var(--navy);
  border: 1px solid var(--line-soft);
  color: var(--ink);
  font-family: var(--jp); font-size: 0.9rem;
  padding: 14px 16px;
  transition: border-color 0.3s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--bronze);
}
.form-field textarea { min-height: 170px; resize: vertical; }
.form-consent { font-size: 0.8rem; color: var(--ink-mute); margin: 8px 0 30px; }
.form-consent a { color: var(--bronze-l); text-decoration: underline; text-underline-offset: 2px; }
.form-submit {
  display: block; width: 100%;
  font-family: var(--jp); font-size: 0.95rem; font-weight: 700; letter-spacing: 0.3em;
  background: var(--bronze); color: var(--navy-deep); /* 5.9:1 */
  border: none; padding: 19px; cursor: pointer;
  transition: background 0.3s ease;
}
.form-submit:hover, .form-submit:focus-visible, .form-submit:active { background: var(--bronze-l); color: var(--navy-deep); } /* 7.8:1 */
.form-note-sent { display: none; margin-top: 18px; font-size: 0.82rem; color: var(--bronze-l); border: 1px solid var(--line); padding: 14px 18px; }
.form-note-sent.is-visible { display: block; }
.contact-side-block { border-top: 1px solid var(--line); padding-top: 30px; margin-bottom: 44px; }
.contact-side-title { font-family: var(--en); font-size: 0.72rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--bronze-l); margin-bottom: 16px; }
.contact-side-tel { font-family: var(--en); font-size: 1.7rem; letter-spacing: 0.1em; }
.contact-side-note { font-size: 0.76rem; color: var(--ink-mute); margin-top: 8px; }

/* ─── PRIVACY / ARTICLE ─────────────────────────────── */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.05rem; font-weight: 700; letter-spacing: 0.14em; margin: 48px 0 16px; padding-left: 16px; border-left: 2px solid var(--bronze); }
.prose p, .prose li { font-size: 0.88rem; color: var(--ink-mute); }
.prose ul { padding-left: 1.4em; }
.prose ul li { list-style: disc; margin-bottom: 6px; }
.article-date { font-family: var(--en); font-size: 0.8rem; letter-spacing: 0.16em; color: var(--ink-mute); }
.article-title { font-size: clamp(1.3rem, 3vw, 1.8rem); font-weight: 700; letter-spacing: 0.1em; line-height: 1.7; margin: 14px 0 40px; }
.article-body p { font-size: 0.9rem; color: var(--ink-mute); margin-bottom: 1.6em; }
.back-link { display: inline-block; margin-top: 50px; }

/* ============================================================
   MOBILE
   ============================================================ */
@media (max-width: 767px) {

  body { font-size: 14px; }
  .container { padding: 0 20px; }

  /* ハンバーガー透け防止（backdrop-filter 全解除） */
  .site-header, .site-header.is-scrolled, .site-header.menu-active {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
  .site-header.menu-active { background: var(--navy) !important; }
  .menu-btn { z-index: 1100; width: 54px; height: 54px; top: 48px; right: 18px; gap: 6px; }
  .menu-btn .menu-btn-label { display: none; }
  .fullnav { clip-path: circle(0px at calc(100% - 45px) 75px); }
  .fullnav.is-open { clip-path: circle(180% at calc(100% - 45px) 75px); }
  .fullnav-inner { padding: 130px 22px 70px; }
  .mobile-nav-close { top: 50px; right: 84px; padding: 12px 16px; }

  /* HERO: 上テキスト / 下画像 スタック */
  .hero { min-height: 0; display: block; padding-bottom: 0; }
  .hero-media {
    position: static; width: 100%; height: 58vw; min-height: 240px;
    clip-path: polygon(0 12%, 100% 0, 100% 100%, 0 100%);
  }
  .hero-copy { max-width: 100%; padding: 90px 0 54px; }
  .hero-lead { max-width: 100%; }
  .hero-scroll { display: none; }

  /* グリッド 1カラム化 */
  .stats-grid { grid-template-columns: 1fr; }
  .stat { border-left: none; border-top: 1px solid var(--line-soft); padding: 34px 20px; }
  .stat:first-child { border-top: none; }
  .biz-grid { grid-template-columns: 1fr; }
  .biz-card { padding: 38px 26px; }
  .proj-grid { grid-template-columns: 1fr; }
  .company-grid { grid-template-columns: 1fr; gap: 44px; }
  .footer-grid { grid-template-columns: 1fr; gap: 38px; }
  .footer-bottom { flex-direction: column; }

  .news-row { flex-wrap: wrap; gap: 10px 18px; padding: 20px 4px; }
  .news-title-t { width: 100%; }

  .co-table th { width: 110px; font-size: 0.66rem; }
  .co-table th, .co-table td { padding: 16px 8px; }
  .history-list { padding-left: 28px; }
  .history-list li::before { left: -32px; }

  .contact-form-wrap { padding: 32px 22px; }

  /* お問い合わせ ① ページレイアウト2カラム解除 */
  .contact-grid, .contact-layout, .contact-wrap, .contact-flex,
  [class*="contact-grid"], [class*="contact-layout"], [class*="contact-wrap"] {
    display: block !important;
    grid-template-columns: 1fr !important;
    flex-direction: column !important;
    gap: 32px;
  }
  .contact-side { margin-top: 44px; }

  /* お問い合わせ ② フォーム内部の2カラム解除 */
  .form-row, .form-grid, .form-2col, .form-pair, .input-row, .input-grid,
  [class*="form-row"], [class*="form-grid"], [class*="two-col"] {
    display: block !important;
    grid-template-columns: 1fr !important;
  }
  form input[type="text"], form input[type="email"], form input[type="tel"],
  form input[type="number"], form textarea, form select,
  .form-row > input, .form-row > textarea, .form-row > select,
  .form-row > div, .form-grid > * {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box;
  }
  .form-row, .form-grid { margin-bottom: 1rem; }
  .form-row .form-field { margin-bottom: 1rem; }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .hero-copy { max-width: 52%; }
  .proj-grid { grid-template-columns: repeat(2, 1fr); }
  .company-grid { gap: 44px; }
}