:root {
  --bg: #f7f3ed;
  --bg-soft: #fcfaf6;
  --bg-stone: #efe7dc;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-solid: #ffffff;
  --surface-dark: #1c1b19;
  --surface-dark-soft: rgba(28, 27, 25, 0.78);
  --text: #1f1d1a;
  --text-soft: #5f5a53;
  --text-light: rgba(255, 255, 255, 0.84);
  --line: rgba(31, 29, 26, 0.12);
  --line-light: rgba(255, 255, 255, 0.14);
  --accent: #8b6b49;
  --accent-strong: #735537;
  --accent-soft: #d8c7ab;
  --accent-pale: rgba(216, 199, 171, 0.35);
  --shadow-soft: 0 20px 50px rgba(20, 18, 15, 0.08);
  --shadow-strong: 0 32px 90px rgba(10, 10, 10, 0.2);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --header-height: 84px;
  --inner: min(1200px, calc(100% - 40px));
  --transition: 360ms cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

p,
ul,
ol,
dl {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

main {
  overflow: clip;
}

.inner {
  width: var(--inner);
  margin-inline: auto;
}

.page-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 70;
  height: 3px;
  background: transparent;
  pointer-events: none;
}

.page-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform-origin: left center;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--accent), #c8ab86);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(247, 243, 237, 0.22);
  backdrop-filter: blur(18px);
  opacity: 0;
  transition: opacity var(--transition);
}

.site-header.is-scrolled::before,
.site-header.menu-open::before {
  opacity: 1;
}

.site-header.is-scrolled::before {
  background: #fff;
  backdrop-filter: none;
}

.site-header.is-scrolled {
  box-shadow: 0 12px 30px rgba(20, 18, 15, 0.06);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0;
  position: relative;
  z-index: 2;
}

.brand-logo {
  width: clamp(140px, 16vw, 200px);
  height: auto;
  max-height: 64px;
  border-radius: 0;
  object-fit: contain;
  display: block;
}

.brand-logo--scrolled {
  display: none;
}

.site-header.is-scrolled .brand-logo--default {
  display: none;
}

.site-header.is-scrolled .brand-logo--scrolled {
  display: block;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  position: relative;
  z-index: 2;
}

.site-nav a {
  position: relative;
  font-size: 0.94rem;
  color: var(--text-soft);
  transition: color var(--transition);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
}

.site-nav a:hover,
.site-nav a.is-current {
  color: var(--text);
}

.site-nav a:hover::after,
.site-nav a.is-current::after {
  transform: scaleX(1);
}

.site-nav .nav-cta {
  margin-left: 10px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-radius: 999px;
  padding: 12px 18px;
  box-shadow: var(--shadow-soft);
}

.site-nav .nav-cta::after {
  display: none;
}

.nav-toggle {
  display: none;
  position: relative;
  z-index: 2;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}

.nav-toggle span {
  position: absolute;
  left: 13px;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 999px;
  transition: transform var(--transition), opacity var(--transition), top var(--transition);
}

.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 23px; }
.nav-toggle span:nth-child(3) { top: 30px; }

.site-header.menu-open .nav-toggle span:nth-child(1) {
  top: 23px;
  transform: rotate(45deg);
}

.site-header.menu-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.menu-open .nav-toggle span:nth-child(3) {
  top: 23px;
  transform: rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding-top: var(--header-height);
  background: #13110f;
  color: #fff;
}

.hero-media,
.hero-overlay,
.hero-noise {
  position: absolute;
  inset: 0;
}

.hero-media {
  transform: translateY(0);
  will-change: transform;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-position: center center;
  background-size: cover;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 1.2s ease, transform 8s ease;
}

.hero-slide.is-active {
  opacity: 1;
  transform: scale(1);
}

.hero-overlay {
  background:
    linear-gradient(120deg, rgba(15, 14, 12, 0.37), rgba(15, 14, 12, 0.14) 46%, rgba(15, 14, 12, 0.29)),
    linear-gradient(180deg, rgba(10, 10, 10, 0.16), rgba(10, 10, 10, 0.07) 24%, rgba(10, 10, 10, 0.34));
}

.hero-noise {
  opacity: 0.14;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.28) 0 1px, transparent 1px),
    radial-gradient(circle at 60% 80%, rgba(255,255,255,0.18) 0 1px, transparent 1px);
  background-size: 22px 22px, 18px 18px;
  mix-blend-mode: soft-light;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 420px);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
  padding-block: clamp(80px, 12vw, 130px) 90px;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.section-kicker::before {
  content: "";
  width: 46px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.section-kicker--light {
  color: rgba(255, 255, 255, 0.72);
}

.hero-copy h1,
.section-head h2,
.hero-panel h2,
.detail-panel__hero h3,
.contact-copy h2,
.modal-body h3 {
  font-family: "Noto Serif JP", serif;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

.hero-copy h1 {
  font-size: clamp(2.24rem, 4.8vw, 4.24rem);
  margin: 0 0 18px;
}

.hero-copy__line {
  display: block;
  white-space: nowrap;
}

.hero-lead {
  max-width: 40rem;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  border-radius: 999px;
  padding: 0 24px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 16px 35px rgba(139, 107, 73, 0.3);
}

.button--ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
}

.button--light {
  color: var(--text);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.button--ghost-light {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.08);
}

.button--full {
  width: 100%;
}

.button--nowrap {
  white-space: nowrap;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-badges li {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.88rem;
  backdrop-filter: blur(12px);
}

.hero-panel {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.08));
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-strong);
}

.hero-panel__label {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.74rem;
  font-weight: 700;
}

.hero-panel h2 {
  margin: 12px 0 14px;
  font-size: clamp(1.6rem, 2vw, 2rem);
}

.hero-panel p {
  color: rgba(255, 255, 255, 0.78);
}

.hero-mini-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-mini-list div {
  display: grid;
  gap: 4px;
}

.hero-mini-list dt {
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.8rem;
}

.hero-mini-list dd,
.hero-mini-list a {
  color: rgba(255, 255, 255, 0.92);
  font-weight: 500;
}

.scroll-indicator {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.24em;
  font-size: 0.68rem;
}

.scroll-indicator::after {
  content: "";
  width: 1px;
  height: 54px;
  background: linear-gradient(180deg, rgba(255,255,255,0.16), rgba(255,255,255,0.84));
  animation: scrollLine 1.8s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0.2); transform-origin: top center; opacity: 0.3; }
  50% { transform: scaleY(1); transform-origin: top center; opacity: 1; }
  100% { transform: scaleY(0.2); transform-origin: bottom center; opacity: 0.3; }
}

.section {
  position: relative;
  padding: clamp(82px, 10vw, 132px) 0;
}

.section--warm {
  background:
    radial-gradient(circle at top right, rgba(216, 199, 171, 0.25), transparent 32%),
    var(--bg-soft);
}

.section--stone {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.35), rgba(255,255,255,0)),
    var(--bg-stone);
}

.section--dark {
  background:
    radial-gradient(circle at top left, rgba(216, 199, 171, 0.08), transparent 30%),
    linear-gradient(180deg, #171614, #1f1d1b);
  color: #fff;
}

.section-head {
  max-width: 860px;
  margin-bottom: 44px;
}

.section-head h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 3.6rem);
}

.section-lead {
  font-size: 1.02rem;
  color: var(--text-soft);
}

.section-head--light .section-kicker,
.section-head--light .section-lead {
  color: rgba(255, 255, 255, 0.74);
}

.concept-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.95fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.quote-card {
  padding: 30px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(139, 107, 73, 0.12);
  box-shadow: var(--shadow-soft);
}

.quote-card__lead {
  font-family: "Noto Serif JP", serif;
  font-size: 1.32rem;
  margin-bottom: 14px;
}

.concept-points {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.concept-points article {
  padding: 22px 24px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(139, 107, 73, 0.1);
}

.concept-points h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
}

.concept-points p {
  color: var(--text-soft);
}

.concept-visual {
  position: relative;
  min-height: 640px;
}

.visual-stack {
  position: absolute;
  overflow: hidden;
  border-radius: 28px;
  box-shadow: var(--shadow-soft);
}

.visual-stack img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.visual-stack--primary {
  inset: 0 52px 80px 0;
}

.visual-stack--secondary {
  width: min(55%, 320px);
  aspect-ratio: 0.84;
  right: 0;
  bottom: 0;
  border: 12px solid var(--bg-soft);
}

.floating-note {
  position: absolute;
  left: 36px;
  bottom: 34px;
  z-index: 2;
  max-width: 360px;
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(28, 27, 25, 0.82);
  color: #fff;
  box-shadow: var(--shadow-strong);
}

.floating-note__title {
  display: block;
  white-space: nowrap;
}

.floating-note span {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.service-card {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--surface-solid);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 60px rgba(20, 18, 15, 0.12);
  border-color: rgba(139, 107, 73, 0.24);
}

.service-card__image {
  position: relative;
  aspect-ratio: 1.1;
  overflow: hidden;
}

.service-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s ease;
}

.service-card:hover .service-card__image img {
  transform: scale(1.06);
}

.service-card__body {
  padding: 26px;
}

.service-card__index {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  font-weight: 700;
}

.service-card h3 {
  margin: 0 0 10px;
  font-family: "Noto Serif JP", serif;
  font-size: 1.55rem;
}

.service-card p {
  color: var(--text-soft);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tag-list li {
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--accent-pale);
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 700;
}

.works-section {
  overflow: clip;
  padding: 0;
}

.works-section > .inner {
  width: 100%;
}

.works-section .section-head {
  width: var(--inner);
  margin: 0 auto;
  margin-bottom: 0;
  padding: clamp(86px, 10vw, 132px) 0 clamp(24px, 4vw, 44px);
  position: relative;
  z-index: 4;
}

.works-scroll {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
}

.works-scroll__pin {
  position: sticky;
  top: 0;
  height: 100svh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  border-radius: 0;
  overflow: hidden;
  background: #050505;
  box-shadow: var(--shadow-strong);
}

.works-scroll__visual {
  position: absolute;
  inset: 0;
  transform-origin: center center;
  transform: scale(1);
  will-change: transform;
}

.works-scroll__image {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 320ms linear;
  mask-image: linear-gradient(225deg, #000 0%, #000 100%, transparent 100%, transparent 100%);
  -webkit-mask-image: linear-gradient(225deg, #000 0%, #000 100%, transparent 100%, transparent 100%);
  will-change: opacity, mask-image, -webkit-mask-image;
}

.works-scroll__image.is-active {
  opacity: 1;
}

.works-scroll__image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  opacity: 0.96;
}

.works-scroll__image::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.08) 30%, rgba(0, 0, 0, 0.74) 100%);
}

.works-scroll__info {
  position: relative;
  z-index: 2;
  width: 100%;
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3vw, 32px);
}

.works-scroll__counter {
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255, 255, 255, 0.95);
  font-family: "Noto Serif JP", serif;
}

.works-scroll__current,
.works-scroll__total {
  font-size: clamp(1rem, 1.4vw, 1.28rem);
  letter-spacing: 0.08em;
}

.works-scroll__line {
  position: relative;
  width: clamp(120px, 24vw, 220px);
  height: 1px;
  background: rgba(255, 255, 255, 0.28);
}

.works-scroll__line-fill {
  position: absolute;
  inset: 0;
  background: #fff;
  transform-origin: left center;
  transform: scaleX(var(--works-line-scale, 0));
}

.works-scroll__captions {
  position: relative;
  min-height: 2.8em;
  margin: 0;
  padding: 0;
  list-style: none;
}

.works-scroll__caption {
  position: absolute;
  inset: 0 auto auto 0;
  margin: 0;
  max-width: none;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(1.58rem, 3.4vw, 2.55rem);
  line-height: 1.3;
  color: #fff;
  white-space: nowrap;
  text-wrap: nowrap;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 380ms ease, transform 380ms ease;
}

.works-scroll__caption.is-active {
  opacity: 1;
  transform: translateY(0);
}

.works-scroll__triggers {
  margin-top: -100svh;
}

.works-scroll__trigger {
  height: 100svh;
}

.works-scroll__trigger:last-child {
  height: 112svh;
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.strength-card {
  min-height: 260px;
  padding: 28px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.8), rgba(255,255,255,0.55));
  border: 1px solid rgba(139, 107, 73, 0.12);
  box-shadow: var(--shadow-soft);
}

.strength-card__number {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  font-weight: 700;
}

.strength-card h3 {
  margin: 0 0 12px;
  font-family: "Noto Serif JP", serif;
  font-size: 1.35rem;
}

.strength-card p {
  color: var(--text-soft);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  position: relative;
  list-style: none;
  counter-reset: step;
}

.process-list::before {
  content: "";
  position: absolute;
  left: 80px;
  right: 80px;
  top: 36px;
  height: 1px;
  background: linear-gradient(90deg, rgba(139,107,73,0.12), rgba(139,107,73,0.55), rgba(139,107,73,0.12));
}

.process-item {
  position: relative;
  z-index: 1;
  padding: 24px 20px 26px;
  border-radius: var(--radius-lg);
  background: var(--surface-solid);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.process-item__step {
  display: grid;
  place-items: center;
  width: 72px;
  aspect-ratio: 1;
  margin: 0 auto 18px;
  border-radius: 50%;
  border: 1px solid rgba(139, 107, 73, 0.18);
  background: linear-gradient(180deg, rgba(216,199,171,0.36), rgba(255,255,255,0.98));
  color: var(--accent-strong);
  font-family: "Noto Serif JP", serif;
  font-size: 1.22rem;
}

.process-item h3 {
  margin: 0 0 10px;
  text-align: center;
  font-size: 1.05rem;
}

.process-item p {
  color: var(--text-soft);
  font-size: 0.94rem;
  text-align: center;
}

.detail-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.detail-tab {
  padding: 14px 20px;
  border-radius: 999px;
  border: 1px solid rgba(139, 107, 73, 0.14);
  background: rgba(255, 255, 255, 0.5);
  color: var(--text-soft);
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.detail-tab:hover,
.detail-tab.is-active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(139, 107, 73, 0.22);
}

.detail-panels {
  position: relative;
}

.detail-panel {
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(139, 107, 73, 0.1);
  box-shadow: var(--shadow-soft);
  padding: clamp(24px, 4vw, 34px);
  animation: panelFade 420ms ease;
}

@keyframes panelFade {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.detail-panel__hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: start;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(139, 107, 73, 0.14);
  margin-bottom: 22px;
}

.detail-panel__eyebrow {
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}

.detail-panel__hero h3 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 2vw, 2.2rem);
}

.detail-panel__hero p:last-child {
  color: var(--text-soft);
}

.detail-panel__cost {
  padding: 22px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(216,199,171,0.36), rgba(255,255,255,0.9));
  border: 1px solid rgba(139, 107, 73, 0.12);
}

.detail-panel__cost span {
  display: block;
  color: var(--text-soft);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.detail-panel__cost strong {
  font-family: "Noto Serif JP", serif;
  font-size: 1.16rem;
  line-height: 1.5;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.detail-grid--single {
  width: min(880px, 100%);
  margin-inline: auto;
}

.detail-box {
  padding: 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(139, 107, 73, 0.1);
}

.detail-box--content {
  padding: clamp(26px, 3.2vw, 36px);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.9);
}

.detail-box h4 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.detail-box--content h4 {
  font-size: clamp(1.14rem, 1.8vw, 1.34rem);
  margin-bottom: 16px;
}

.detail-box ul {
  display: grid;
  gap: 10px;
}

.detail-box--content ul {
  gap: 12px;
}

.detail-box li {
  position: relative;
  padding-left: 18px;
  color: var(--text-soft);
}

.detail-box--content li {
  font-size: clamp(1rem, 1.02vw, 1.08rem);
  line-height: 1.85;
}

.detail-box li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.detail-note {
  margin-top: 16px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.section--contact {
  background:
    linear-gradient(135deg, rgba(18,17,15,0.78), rgba(18,17,15,0.74)),
    url('img/contact-bg.png') center/cover no-repeat;
  color: #fff;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 460px);
  gap: clamp(26px, 4vw, 56px);
  align-items: start;
}

.contact-copy h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.contact-copy > p {
  color: rgba(255, 255, 255, 0.82);
  max-width: 42rem;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.contact-direct {
  display: grid;
  gap: 18px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--line-light);
}

.contact-direct span {
  display: block;
  color: rgba(255,255,255,0.54);
  font-size: 0.84rem;
  margin-bottom: 6px;
}

.contact-direct strong,
.contact-direct a {
  color: #fff;
}

.contact-form-wrap {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  box-shadow: var(--shadow-strong);
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field--full {
  grid-column: 1 / -1;
}

.form-field label {
  font-weight: 700;
  font-size: 0.92rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(31, 29, 26, 0.12);
  background: rgba(247, 243, 237, 0.9);
  color: var(--text);
  padding: 14px 16px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 0;
  border-color: rgba(139, 107, 73, 0.6);
  box-shadow: 0 0 0 4px rgba(216, 199, 171, 0.28);
  background: #fff;
}

.form-field.is-invalid input,
.form-field.is-invalid select,
.form-field.is-invalid textarea {
  border-color: #bd5b5b;
  box-shadow: 0 0 0 4px rgba(189, 91, 91, 0.14);
}

.form-success {
  margin-top: 18px;
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(216, 199, 171, 0.35);
  border: 1px solid rgba(139, 107, 73, 0.18);
}

.form-success.is-error {
  background: rgba(189, 91, 91, 0.14);
  border-color: rgba(189, 91, 91, 0.38);
}

.company-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.85fr) minmax(0, 1.15fr);
  gap: 28px;
  align-items: stretch;
}

.company-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--surface-solid);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.company-list {
  display: grid;
  gap: 18px;
}

.company-list div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.company-list div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.company-list dt {
  color: var(--text-soft);
  font-weight: 700;
}

.company-list dd a {
  color: var(--accent-strong);
}

.company-visual {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  min-height: 100%;
  box-shadow: var(--shadow-soft);
}

.company-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 480px;
}

.company-visual__caption {
  position: absolute;
  inset: auto 24px 24px;
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-soft);
}

.company-visual__caption strong {
  display: block;
  font-family: "Noto Serif JP", serif;
  font-size: 1.18rem;
  margin-bottom: 6px;
}

.site-footer {
  padding: 36px 0 28px;
  background: #161513;
  color: rgba(255, 255, 255, 0.74);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-brand strong {
  display: block;
  font-family: "Noto Serif JP", serif;
  color: #fff;
  margin-bottom: 4px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a:hover {
  color: #fff;
}

.footer-note,
.footer-copy {
  width: var(--inner);
  margin-inline: auto;
}

.footer-note {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.54);
  font-size: 0.86rem;
}

.footer-copy {
  margin-top: 12px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.42);
}

.floating-cta {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 45;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 108px;
  min-height: 52px;
  padding: 0 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  box-shadow: 0 20px 40px rgba(139, 107, 73, 0.34);
  transition: transform var(--transition), opacity var(--transition);
}

.floating-cta:hover {
  transform: translateY(-3px);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
}

.modal.is-open {
  display: grid;
  place-items: center;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(9, 8, 7, 0.72);
  backdrop-filter: blur(10px);
}

.modal-dialog {
  position: relative;
  width: min(960px, calc(100% - 32px));
  border-radius: 28px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-strong);
  animation: modalIn 280ms ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-dialog img {
  width: 100%;
  max-height: min(68vh, 640px);
  object-fit: cover;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.84);
  font-size: 1.6rem;
  line-height: 1;
  box-shadow: var(--shadow-soft);
}

.modal-body {
  padding: 26px 28px 30px;
}

.modal-body h3 {
  margin: 0 0 10px;
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.modal-body p:last-child {
  color: var(--text-soft);
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 1101px) {
  .concept-grid {
    align-items: stretch;
  }

  .concept-visual {
    min-height: 0;
    height: 100%;
  }

  #service .section-head {
    max-width: none;
  }

  .section-lead--service {
    white-space: nowrap;
  }

  #menu .section-head {
    max-width: none;
  }

  .section-lead--menu {
    white-space: nowrap;
  }

  #menu .detail-grid--single {
    width: min(1160px, 100%);
  }

  #menu .detail-box--content {
    padding: 18px 24px 20px;
  }

  #menu .detail-box--content h4 {
    margin-bottom: 10px;
  }

  #menu .detail-box--content ul {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  #menu .detail-box--content li {
    font-size: 0.95rem;
    line-height: 1.55;
    padding-left: 14px;
  }

  .flow-section .inner {
    width: min(1400px, calc(100% - 40px));
  }

  .flow-section .process-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    margin-inline: auto;
  }
}

@media (max-width: 1100px) {
  .site-nav {
    gap: 14px;
  }

  .hero-inner,
  .concept-grid,
  .contact-layout,
  .company-grid,
  .detail-panel__hero {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    max-width: 520px;
  }

  .service-grid,
  .strength-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-list {
    grid-template-columns: repeat(5, minmax(220px, 1fr));
    overflow-x: auto;
    padding-bottom: 10px;
    scroll-snap-type: x mandatory;
  }

  .process-list::before {
    left: 100px;
    right: 100px;
    width: max(100%, 1200px);
  }

  .process-item {
    scroll-snap-align: start;
  }

  .works-scroll__pin {
    min-height: 100svh;
  }

  .works-scroll__caption {
    max-width: none;
  }

  .works-scroll__trigger {
    height: 90svh;
  }

  .works-scroll__trigger:last-child {
    height: 100svh;
  }
}

@media (max-width: 900px) {
  .site-nav {
    position: fixed;
    inset: calc(var(--header-height) + 10px) 20px auto;
    display: grid;
    gap: 10px;
    padding: 18px;
    border-radius: 26px;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-strong);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }

  .site-header.menu-open .site-nav {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-nav a {
    color: var(--text);
    padding: 10px 6px;
  }

  .site-nav .nav-cta {
    width: 100%;
    text-align: center;
    margin-left: 0;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .hero-copy h1 {
    font-size: clamp(1.6rem, 9.6vw, 3.2rem);
  }

  .section-head h2,
  .contact-copy h2 {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .service-grid,
  .strength-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .works-scroll__pin {
    min-height: 100svh;
  }

  .works-scroll__triggers {
    margin-top: -100svh;
  }

  .works-scroll__line {
    width: clamp(96px, 30vw, 170px);
  }

  .works-scroll__caption {
    max-width: none;
    font-size: clamp(1.36rem, 7vw, 2rem);
  }

  .works-scroll__image img {
    object-fit: contain;
    object-position: center center;
    background: #050505;
  }

  .works-scroll__trigger {
    height: 82svh;
  }

  .works-scroll__trigger:last-child {
    height: 92svh;
  }

  .contact-form {
    grid-template-columns: 1fr;
  }

  .company-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .floating-note {
    left: 20px;
    right: 20px;
    max-width: none;
  }

  .concept-visual {
    min-height: 520px;
  }

  .visual-stack--primary {
    inset: 0 28px 86px 0;
  }

  .visual-stack--secondary {
    width: min(60%, 260px);
  }
}

@media (max-width: 640px) {
  :root {
    --inner: min(100% - 28px, 1200px);
  }

  .brand-logo {
    width: clamp(120px, 36vw, 160px);
    max-height: 52px;
  }

  .header-inner {
    min-height: 74px;
  }

  .hero {
    min-height: 92svh;
  }

  .hero-inner {
    padding-bottom: 76px;
  }

  .hero-panel,
  .quote-card,
  .concept-points article,
  .service-card__body,
  .strength-card,
  .detail-panel,
  .contact-form-wrap,
  .company-card {
    padding: 22px;
  }

  .works-scroll__pin {
    min-height: 100svh;
  }

  .works-scroll__info {
    gap: 12px;
    padding: 16px 16px 18px;
  }

  .works-scroll__trigger {
    height: 76svh;
  }

  .works-scroll__trigger:last-child {
    height: 86svh;
  }

  .modal-dialog {
    width: calc(100% - 20px);
    border-radius: 22px;
  }

  .modal-body {
    padding: 22px;
  }

  .scroll-indicator {
    bottom: 12px;
  }

  .floating-cta {
    right: 14px;
    bottom: 14px;
    min-height: 48px;
    min-width: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero-slide {
    transform: none !important;
  }

  .hero-media {
    transform: none !important;
  }
}