:root {
  --bg: #f3eee6;
  --bg-2: #e8e0d4;
  --paper: #faf7f2;
  --ink: #1c1916;
  --muted: #6d655c;
  --line: rgba(28, 25, 22, 0.12);
  --accent: #8a6844;
  --dark: #221f1c;
  --dark-2: #2b2723;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --display: "Cormorant Garamond", "Noto Serif SC", serif;
  --header: 76px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
}
body.lock { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.28; margin: 0; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

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

.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.en { display: block; color: var(--muted); font-family: var(--display); font-size: 0.95rem; font-style: italic; letter-spacing: 0.01em; line-height: 1.45; }
.kicker {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.kicker span { letter-spacing: 0.08em; text-transform: none; }

.header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: var(--header);
  padding: 0 28px;
  background: rgba(243, 238, 230, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
}
.header.is-stuck { border-bottom-color: var(--line); }
.brand { display: flex; align-items: center; gap: 10px; min-width: max-content; }
.brand svg { width: 42px; height: 42px; }
.brand strong { display: block; font-family: var(--display); font-size: 1.15rem; letter-spacing: 0.18em; font-weight: 600; line-height: 1; }
.brand small { display: block; margin-top: 3px; color: var(--muted); font-size: 0.68rem; letter-spacing: 0.04em; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 10px;
  font-size: 0.86rem;
  color: var(--ink);
  border-radius: 999px;
}
.nav a:hover { background: rgba(28, 25, 22, 0.06); }
.nav-cta {
  margin-left: 8px;
  padding: 9px 16px !important;
  background: var(--dark);
  color: var(--paper) !important;
}
.nav-cta:hover { background: #000 !important; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 50%;
  padding: 0;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block;
  width: 16px;
  height: 1.5px;
  margin: 0 auto;
  background: var(--ink);
  position: relative;
}
.nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}
.nav-toggle span::before { top: -5px; }
.nav-toggle span::after { top: 5px; }

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  min-height: calc(100vh - var(--header));
  background: var(--dark);
  color: #f6f1ea;
}
.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 64px 48px 56px 6vw;
}
.hero-copy .eyebrow {
  margin: 0 0 18px;
  color: #c8b39a;
  letter-spacing: 0.22em;
  font-size: 0.75rem;
  text-transform: uppercase;
}
.hero h1 { font-size: clamp(2.3rem, 3.6vw, 3.8rem); max-width: 10em; }
.hero .lead { margin-top: 22px; max-width: 38em; color: rgba(246, 241, 234, 0.78); }
.hero .en { color: rgba(246, 241, 234, 0.55); margin-top: 8px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  background: var(--paper);
  color: var(--ink);
}
.btn.dark { background: var(--dark); color: var(--paper); }
.btn.ghost { background: transparent; border-color: rgba(246, 241, 234, 0.35); color: #f6f1ea; }
.btn.line { background: transparent; border-color: var(--line); }
.btn:hover { transform: translateY(-1px); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 18px 28px; margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(246, 241, 234, 0.14); }
.hero-meta strong { display: block; font-family: var(--display); font-size: 1.7rem; font-weight: 600; letter-spacing: 0.04em; }
.hero-meta span { color: rgba(246, 241, 234, 0.62); font-size: 0.82rem; }
.hero-visual { position: relative; min-height: 520px; overflow: hidden; }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }

.section { padding: 88px 0; }
.section-head { display: grid; grid-template-columns: 72px 1fr; gap: 8px; margin-bottom: 36px; align-items: end; }
.section-head .index { font-family: var(--display); font-size: 2.4rem; color: var(--accent); line-height: 1; margin: 0; }
.section h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
.section-head .en { margin-top: 6px; }

.split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.split.reverse { grid-template-columns: 0.95fr 1.05fr; }
.split.reverse .copy { order: 2; }
.frame { overflow: hidden; background: #ddd; }
.frame.tall { aspect-ratio: 4 / 5; }
.frame.wide { aspect-ratio: 16 / 10; }
.frame img { width: 100%; height: 100%; object-fit: cover; }
.prose p + p { margin-top: 14px; }
.prose .en { margin-top: 6px; margin-bottom: 16px; }

.chips { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 28px; }
.chip, .panel, .card, .dept, .value, .step, .price-card, .qr-card {
  background: var(--paper);
  border: 1px solid var(--line);
}
.chip { padding: 16px 14px; }
.chip strong { display: block; font-family: var(--serif); font-size: 1.02rem; }
.chip span, .muted { color: var(--muted); font-size: 0.86rem; }

.band { background: var(--dark); color: #f6f1ea; }
.band .en { color: rgba(246, 241, 234, 0.58); }
.quote { max-width: 18em; font-size: clamp(1.8rem, 3vw, 2.6rem); }
.audience { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 40px; margin-top: 36px; }
.audience h3 { font-size: 1.15rem; margin-bottom: 6px; }
.sofa { margin-top: 42px; aspect-ratio: 21 / 6; overflow: hidden; }
.sofa img { width: 100%; height: 100%; object-fit: cover; object-position: center 60%; }

.logo-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; }
.recognize { display: grid; gap: 12px; }
.recognize article { display: grid; grid-template-columns: 64px 1fr; gap: 8px; padding: 18px; background: var(--paper); border: 1px solid var(--line); }
.recognize .n { font-family: var(--display); font-size: 1.6rem; color: var(--accent); }
.side-note { padding: 28px; background: var(--dark-2); color: #f6f1ea; }
.side-note .en { color: rgba(246, 241, 234, 0.6); }
.side-note li + li { margin-top: 16px; }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.card img { width: 100%; height: 180px; object-fit: cover; }
.card .pad { padding: 16px 16px 20px; }
.card h3 { font-size: 1.2rem; margin-bottom: 4px; }
.ribbon {
  margin-top: 22px;
  padding: 18px 22px;
  text-align: center;
  background: var(--dark);
  color: #f6f1ea;
  font-family: var(--serif);
}
.ribbon .en { color: rgba(246, 241, 234, 0.6); }

.service { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 36px; padding: 36px 0; border-top: 1px solid var(--line); }
.service:last-child { border-bottom: 1px solid var(--line); }
.service h3 { font-size: 1.7rem; margin: 6px 0 10px; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; margin: 16px 0; }
.adv li, .plain li { position: relative; padding-left: 16px; margin-top: 10px; }
.adv li::before, .plain li::before { content: ""; position: absolute; left: 0; top: 0.7em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.check li { margin-top: 8px; }

.depts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.dept { padding: 22px 18px 20px; }
.dept h3 { font-size: 1.15rem; margin-bottom: 8px; }
.span-2 { grid-column: span 2; }

.standards { display: grid; gap: 10px; margin: 18px 0; }
.standards div { padding: 14px 16px; background: rgba(255,255,255,0.45); border-left: 3px solid var(--accent); }
.standards strong { display: block; }

.price-layout { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: 18px; }
.price-card, .commit { padding: 28px; }
.commit { background: var(--bg-2); }
.principles { display: grid; gap: 0; }
.principles article { display: grid; grid-template-columns: 72px 1fr; gap: 12px; padding: 26px 0; border-top: 1px solid var(--line); }
.principles .n { font-family: var(--display); font-size: 2rem; color: var(--accent); }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.value { padding: 22px 18px; }
.value h3 { font-size: 1.12rem; margin-bottom: 6px; }
.steps { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; margin-top: 16px; }
.step { padding: 16px 12px; min-height: 140px; }
.step .n { font-family: var(--display); color: var(--accent); font-size: 1.3rem; }
.after {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 18px;
  padding: 16px 18px;
  background: var(--dark);
  color: #f6f1ea;
}
.promises { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.promises article { padding: 24px 20px; background: var(--paper); border-top: 3px solid var(--accent); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.filters button {
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}
.filters button[aria-pressed="true"] { background: var(--dark); color: var(--paper); border-color: var(--dark); }
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.gallery figure { margin: 0; background: var(--paper); }
.gallery figure[hidden] { display: none; }
.shot { display: block; width: 100%; padding: 0; border: 0; background: #ddd; cursor: zoom-in; aspect-ratio: 4 / 3; overflow: hidden; }
.shot img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.shot:hover img { transform: scale(1.04); }
.gallery figcaption { display: flex; justify-content: space-between; gap: 8px; padding: 8px 10px 10px; font-size: 0.86rem; }
.gallery figcaption span { color: var(--muted); }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(18, 16, 14, 0.88);
  display: grid;
  place-items: center;
  padding: 28px;
}
.lightbox[hidden] { display: none; }
.lightbox img { max-width: min(1100px, 92vw); max-height: 78vh; object-fit: contain; }
.lightbox p { color: #f6f1ea; margin-top: 12px; text-align: center; }
.lightbox .close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  background: transparent;
  color: white;
  cursor: pointer;
  font-size: 1.4rem;
}

.partner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 28px; align-items: center; }
.partner ul { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 20px; margin-top: 16px; }

.contact { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 28px; }
form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
label { display: grid; gap: 6px; font-size: 0.86rem; }
label.full { grid-column: 1 / -1; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 12px 12px;
  border-radius: 2px;
}
textarea { min-height: 120px; resize: vertical; }
.form-note { grid-column: 1 / -1; color: var(--muted); font-size: 0.86rem; }
.qrs { display: flex; gap: 16px; margin-top: 18px; }
.qr-card { padding: 12px; text-align: center; width: 150px; }
.qr-card img { width: 126px; height: 126px; object-fit: contain; margin: 0 auto 8px; background: white; }

.footer { padding: 28px 0 36px; color: var(--muted); font-size: 0.86rem; border-top: 1px solid var(--line); }
.footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (max-width: 980px) {
  .nav-toggle { display: grid; place-items: center; }
  .nav {
    display: none;
    position: absolute;
    top: var(--header);
    left: 12px;
    right: 12px;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    background: var(--paper);
    border: 1px solid var(--line);
    box-shadow: 0 16px 40px rgba(28, 25, 22, 0.08);
  }
  .nav.is-open { display: flex; }
  .nav-cta { margin: 4px 0 0; text-align: center; }
  .hero, .split, .split.reverse, .logo-grid, .cards, .service, .depts, .price-layout, .values, .promises, .partner, .contact, .gallery {
    grid-template-columns: 1fr;
  }
  .split.reverse .copy { order: 0; }
  .cards, .depts, .values, .promises { grid-template-columns: 1fr 1fr; }
  .span-2 { grid-column: auto; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .chips { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .hero-visual { min-height: 420px; }
  .section-head { grid-template-columns: 48px 1fr; }
}

@media (max-width: 640px) {
  .wrap { width: min(var(--max), calc(100% - 28px)); }
  .header { padding: 0 14px; }
  .hero-copy { padding: 48px 22px 40px; }
  .section { padding: 64px 0; }
  .cards, .depts, .values, .promises, .chips, .audience, .cols, .partner ul, form, .principles article {
    grid-template-columns: 1fr;
  }
  .gallery { grid-template-columns: 1fr; }
  .sofa { aspect-ratio: 16 / 7; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .shot img, .btn { transition: none; }
}