:root {
  --bg: #ffffff;
  --text: #000000;
  --line: #000000;
  --accent: #000000;
  --gray: #f2f2f2;
  --section-y: 140px;
  --section-y-statement: 180px;
  --section-header-gap: 56px;
  --grid-start-gap: 60px;
  --scroll-offset: 96px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.8;
  letter-spacing: 0.08em;
  overflow-x: hidden;
  line-break: strict;
  overflow-wrap: anywhere;
}

/* Typography */
h1, h2, h3, .en-title {
  font-weight: 900;
  line-height: 1.2;
  text-wrap: balance;
}

.en-title {
  font-family: 'Oswald', sans-serif;
  text-transform: uppercase;
}

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

img,
video,
iframe {
  max-width: 100%;
  block-size: auto;
  display: block;
}

.container {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  position: relative;
}

/* Animation Utilities */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

body.menu-open { overflow: hidden; }

/* Header */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  padding: 30px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: #fff;
  color: #000;
  pointer-events: none;
}

header * { pointer-events: auto; }

.brand {
  font-family: 'Oswald', sans-serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.2em;
  display: inline-flex;
  max-width: calc(100vw - 140px);
  overflow: hidden;
  white-space: nowrap;
}

.brand-section {
  letter-spacing: 0.08em;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.brand-section:not(:empty) {
  opacity: 1;
  transform: translateX(0);
}

nav {
  display: flex;
  gap: 40px;
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  letter-spacing: 0.15em;
}

nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-consult {
  display: none;
  min-height: 44px;
  padding: 0 14px;
  border: 2px solid #000;
  background: #000;
  color: #fff;
  font: inherit;
  font-size: 13px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.08em;
  white-space: nowrap;
  cursor: pointer;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 2px solid currentColor;
  background: transparent;
  color: inherit;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  position: relative;
  z-index: 110;
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Hero */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: #fff;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 92px 40px 52px;
  border: 1px solid rgba(0,0,0,0.08);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 96px clamp(48px, 5vw, 80px) 64px;
  isolation: isolate;
  gap: clamp(24px, 3.4vw, 48px);
}

.hero-content::before {
  content: none;
}

.hero-title {
  font-size: clamp(44px, 5.2vw, 86px);
  line-height: 1.16;
  letter-spacing: 0.02em;
  white-space: normal;
  margin-left: -5px;
  max-width: 13em;
}

.hero-title-line {
  display: block;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.hero-title-line-bottom {
  font-size: 0.72em;
  margin-top: 0.12em;
  letter-spacing: 0.015em;
  white-space: nowrap;
}

.hero-text-wrap.is-visible .hero-title-line {
  opacity: 1;
  transform: translateY(0);
}

.hero-text-wrap.is-visible .hero-title-line-top {
  transition-delay: 0.08s;
}

.hero-text-wrap.is-visible .hero-title-line-bottom {
  transition-delay: 0.28s;
}

.hero-sub {
  font-size: clamp(14px, 2vw, 18px);
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.2em;
}

.hero-img {
  position: relative;
  order: 0;
  top: auto;
  right: auto;
  bottom: auto;
  width: min(42vw, 560px);
  padding: 0;
  margin: 0;
  z-index: 1;
  opacity: 0.16;
  pointer-events: none;
  mix-blend-mode: normal;
  transform: none;
  transform-origin: center;
  -webkit-mask-image: none;
  mask-image: none;
}

.hero-img.fade-up {
  opacity: 0;
  transform: translateY(24px) scale(0.98);
}

.hero-img.fade-up.is-visible {
  opacity: 0.16;
  transform: translateY(0) scale(1);
}

.hero-img img {
  width: 100%;
  border: 0;
  box-shadow: none;
  filter: none;
}

.hero-text-wrap {
  position: relative;
  order: 1;
  z-index: 3;
  width: min(980px, 82vw);
  background: transparent;
  padding: 0;
  margin-left: 0;
  text-align: center;
}

.hero-text-wrap::after {
  content: none;
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0.96) 0%, rgba(255,255,255,0.78) 48%, rgba(255,255,255,0) 100%);
  z-index: -1;
}

.scroll-down {
  position: absolute;
  bottom: 40px;
  left: 40px;
  font-family: 'Oswald', sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  display: flex;
  align-items: center;
  gap: 15px;
  transform: rotate(-90deg);
  transform-origin: left bottom;
}
.scroll-down::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: #000;
  animation: scrollLine 2s infinite ease-in-out;
}

@keyframes scrollLine {
  0% { transform: scaleX(0); transform-origin: left; }
  50% { transform: scaleX(1); transform-origin: left; }
  51% { transform: scaleX(1); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

/* Sections */
section {
  padding: var(--section-y) 0;
  position: relative;
  overflow: hidden;
  scroll-margin-top: var(--scroll-offset);
}

.bg-text {
  position: absolute;
  top: 50px;
  left: -5%;
  font-family: 'Oswald', sans-serif;
  font-size: 25vw;
  font-weight: 900;
  color: rgba(0,0,0,0.03);
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
  z-index: 0;
}

.section-header {
  margin-bottom: var(--section-header-gap);
  position: relative;
  z-index: 1;
}

.section-en {
  font-size: clamp(30px, 5vw, 60px);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.section-ja {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 900;
}

/* Strength */
.strength-inner {
  max-width: 900px;
}

.strength-header {
  margin-bottom: 28px;
}

.strength-title {
  display: inline-block;
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: 0.04em;
  margin-bottom: 34px;
  padding-bottom: 10px;
  border-bottom: 3px solid #000;
}

.strength-lead {
  font-size: clamp(18px, 2.4vw, 28px);
  font-weight: 900;
  line-height: 1.55;
  margin-bottom: 22px;
}

.strength-intro {
  font-size: clamp(16px, 1.8vw, 22px);
  font-weight: 900;
  line-height: 1.9;
  margin-bottom: 34px;
  text-wrap: pretty;
}

.strength-punch {
  font-size: clamp(23px, 6vw, 34px);
  margin-bottom: 16px;
}

.strength-rhythm {
  display: inline-block;
  background: #000;
  color: #fff;
  padding: 8px 12px 9px;
  margin-bottom: 18px;
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 900;
  line-height: 1.25;
}

.strength-copy {
  font-weight: 700;
  font-size: clamp(15px, 1.35vw, 18px);
  line-height: 1.9;
  max-width: 36em;
}

.strength-list {
  list-style: none;
  margin-top: 34px;
  background: #000;
  color: #fff;
  padding: 4px 24px;
  border-top: 0;
}

.strength-list li {
  padding: 18px 0;
  border-bottom: 1px solid rgba(255,255,255,0.36);
  display: grid;
  grid-template-columns: minmax(4em, 5em) 1fr;
  gap: 18px;
  align-items: baseline;
}

.strength-list li:last-child {
  border-bottom: 0;
}

.strength-list span {
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 900;
  line-height: 1.2;
}

.strength-list small {
  display: block;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.75;
}

/* About */
.about {
  background: #fff;
}

.about-inner {
  max-width: 980px;
}

.about-title {
  max-width: 920px;
  font-size: clamp(38px, 6.2vw, 78px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: 0;
  margin-bottom: 38px;
}

.about-copy {
  max-width: 720px;
  font-size: clamp(17px, 1.7vw, 22px);
  font-weight: 700;
  line-height: 1.75;
  color: rgba(0,0,0,0.72);
}

.about-copy p + p {
  margin-top: 0.32em;
}

.about-copy-strong {
  font-size: clamp(24px, 3.2vw, 42px);
  font-weight: 900;
  line-height: 1.18;
  color: #000;
}

.about-principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 70px;
  background: rgba(0,0,0,0.12);
}

.about-principle {
  background: #f5f5f7;
  padding: 34px 28px 36px;
}

.about-principle span {
  display: none;
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: rgba(0,0,0,0.38);
  margin-bottom: 28px;
}

.about-principle strong {
  display: block;
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 900;
  margin-bottom: 14px;
}

.about-principle p {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.75;
  color: rgba(0,0,0,0.64);
}

/* Service */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-top: var(--grid-start-gap);
}

.service-card {
  border: 4px solid #000;
  padding: 50px 40px;
  background: #fff;
  position: relative;
  transition: 0.3s;
}
.service-card:hover {
  background: #000;
  color: #fff;
  transform: translate(-10px, -10px);
  box-shadow: 10px 10px 0 #000;
}

.service-card:hover .service-num { color: #fff; }

.service-num {
  font-family: 'Oswald', sans-serif;
  font-size: 60px;
  color: transparent;
  -webkit-text-stroke: 2px #000;
  position: absolute;
  top: 20px;
  right: 30px;
  line-height: 1;
  transition: 0.3s;
}

.service-card h3 {
  font-size: 28px;
  margin-bottom: 20px;
}

.service-card p {
  font-size: 16px;
  font-weight: 700;
  text-wrap: pretty;
}

/* Works */
.works-scroll {
  display: flex;
  gap: 24px;
  margin-inline: calc((100vw - min(1200px, calc(100vw - 40px))) / -2);
  padding: 8px calc((100vw - min(1200px, calc(100vw - 40px))) / 2) 28px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: calc((100vw - min(1200px, calc(100vw - 40px))) / 2);
  -webkit-overflow-scrolling: touch;
}

.works-scroll::-webkit-scrollbar {
  height: 8px;
}

.works-scroll::-webkit-scrollbar-track {
  background: #e9e9e9;
}

.works-scroll::-webkit-scrollbar-thumb {
  background: #000;
}

.work-item {
  flex: 0 0 min(420px, 78vw);
  scroll-snap-align: start;
  background: #fff;
  border: 2px solid #000;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.work-item:hover {
  transform: translateY(-6px);
  box-shadow: 10px 10px 0 #000;
}

.work-photo {
  aspect-ratio: 4/3;
  background: #f3f3f3;
  border-bottom: 2px solid #000;
  overflow: hidden;
}

.work-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(10%) contrast(1.04);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), filter 0.5s ease;
}

.work-item:hover .work-photo img {
  transform: scale(1.04);
  filter: grayscale(0%) contrast(1.06);
}

.work-caption {
  padding: 24px 24px 28px;
}

.work-tag {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 5px 10px;
  background: #000;
  color: #fff;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.work-caption h3 {
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.35;
}

/* Policy / Message */
.policy {
  background: #000;
  color: #fff;
  padding: var(--section-y-statement) 0;
  text-align: center;
}

.policy h2 {
  font-size: clamp(40px, 6vw, 90px);
  margin-bottom: 60px;
}
.policy p {
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 700;
  line-height: 2.2;
  max-width: 42em;
  margin-inline: auto;
  text-align: center;
}

/* Flow */
.flow-list {
  max-width: 900px;
  margin: 0 auto;
  border-left: 4px solid #000;
  padding-left: 40px;
}
.flow-item {
  position: relative;
  margin-bottom: 60px;
}
.flow-item::before {
  content: '';
  position: absolute;
  left: -54px;
  top: 0;
  width: 24px;
  height: 24px;
  background: #fff;
  border: 4px solid #000;
  border-radius: 50%;
}
.flow-num {
  font-family: 'Oswald', sans-serif;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 10px;
}
.flow-item h3 {
  font-size: 28px;
  margin-bottom: 15px;
}
.flow-item p {
  font-weight: 700;
  text-wrap: pretty;
}

/* Contact */
.contact {
  text-align: center;
  padding: var(--section-y) 0;
  border-top: 4px solid #000;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #000;
  color: #fff;
  padding: 25px 60px;
  min-height: 56px;
  font-size: 20px;
  font-weight: 900;
  border: 2px solid #000;
  transition: 0.3s;
  font-family: inherit;
  letter-spacing: inherit;
  cursor: pointer;
}
.btn:hover {
  background: #fff;
  color: #000;
}
.contact-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}
.btn-icon {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
}

/* Consultation Modal */
.consultation-modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.consultation-modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.consultation-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.72);
}

.consultation-dialog {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  max-height: min(760px, calc(100svh - 48px));
  overflow-y: auto;
  background: #fff;
  color: #000;
  border: 4px solid #000;
  padding: clamp(26px, 4vw, 44px);
  box-shadow: 16px 16px 0 rgba(255,255,255,0.18);
}

.consultation-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  border: 2px solid #000;
  background: #fff;
  color: #000;
  cursor: pointer;
}

.consultation-close span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 21px;
  height: 2px;
  background: currentColor;
}

.consultation-close span:first-child {
  transform: translate(-50%, -50%) rotate(45deg);
}

.consultation-close span:last-child {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.consultation-heading {
  padding-right: 56px;
  margin-bottom: 18px;
}

.consultation-heading p,
.consultation-label,
.consultation-field span {
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.selected-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: -6px 0 18px;
  padding: 8px 0 13px;
  border-bottom: 2px solid #000;
}

.selected-summary.is-hidden {
  display: none;
}

.selected-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  padding: 4px 8px;
  border: 2px solid #000;
  background: #000;
  color: #fff;
  font: inherit;
  font-size: 11.5px;
  font-weight: 900;
  letter-spacing: 0.035em;
  cursor: pointer;
}

.selected-chip::after {
  content: '×';
  font-family: Arial, sans-serif;
  font-size: 13px;
  line-height: 1;
}

.consultation-group {
  margin-top: 22px;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.consultation-dialog .is-hidden {
  display: none;
}

.consultation-label {
  margin-bottom: 12px;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.filter-chip {
  min-height: 40px;
  padding: 8px 15px;
  border: 2px solid #000;
  background: #fff;
  color: #000;
  font: inherit;
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.filter-chip[aria-pressed="true"] {
  background: #000;
  color: #fff;
  transform: translateY(-2px);
}

.filter-chip.is-hidden {
  display: none;
}

.filter-chip:disabled {
  cursor: progress;
  opacity: 0.65;
}

.consultation-submit:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.consultation-form-step {
  display: grid;
  gap: 12px;
  margin-top: 22px;
  text-align: left;
}

.consultation-subform {
  display: grid;
  gap: 12px;
  padding: 0 0 14px;
  border-bottom: 2px solid #000;
}

.consultation-input-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 9px;
  align-items: end;
}

.consultation-input-grid--dates {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.consultation-input,
.consultation-file,
.consultation-photo {
  display: grid;
  gap: 7px;
}

.consultation-reply {
  display: grid;
  gap: 9px;
}

.consultation-reply .consultation-label {
  margin-bottom: 0;
}

.consultation-reply-chip {
  min-height: 36px;
  padding: 7px 12px;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.consultation-input span,
.consultation-file span,
.consultation-photo > span,
.consultation-check span {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.09em;
}

.consultation-input input,
.consultation-file input {
  width: 100%;
  min-height: 42px;
  border: 2px solid #000;
  padding: 9px 11px;
  background: #fff;
  color: #000;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.consultation-file input {
  padding: 8px;
}

.consultation-photo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.consultation-icon-action {
  position: relative;
  display: inline-grid;
  place-items: center;
  gap: 5px;
  width: 72px;
  height: 64px;
  border: 2px solid #000;
  background: #fff;
  color: #000;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.consultation-icon-action:hover {
  background: #000;
  color: #fff;
  transform: translateY(-2px);
}

.consultation-icon-action input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.consultation-icon-action svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

.consultation-icon-action span {
  font-size: 11px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.04em;
}

.consultation-check {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
  cursor: pointer;
}

.consultation-check input {
  width: 18px;
  height: 18px;
  accent-color: #000;
}

.consultation-helper {
  min-height: 1.4em;
  margin: -2px 0 0;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.consultation-submit-status {
  margin-top: 16px;
}

.consultation-result {
  margin-top: 22px;
  padding: 18px;
  border: 2px solid #000;
  background: #f4f4f4;
  text-align: left;
}

.consultation-result-title {
  margin-bottom: 8px;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.consultation-result p {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.7;
}

.consultation-field {
  display: grid;
  gap: 10px;
  margin-top: 24px;
  text-align: left;
}

.consultation-field textarea {
  width: 100%;
  resize: vertical;
  min-height: 210px;
  border: 2px solid #000;
  padding: 16px;
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.65;
  letter-spacing: 0.04em;
  color: #000;
  background: #fff;
}

.consultation-field textarea:focus,
.consultation-input input:focus,
.consultation-file input:focus,
.consultation-icon-action:has(input:focus-visible),
.consultation-check input:focus-visible,
.filter-chip:focus-visible,
.consultation-close:focus-visible,
.consultation-submit:focus-visible {
  outline: 3px solid #000;
  outline-offset: 3px;
}

.consultation-submit {
  width: 100%;
  margin-top: 22px;
  padding: 18px 32px;
}

/* Footer */
footer {
  background: #000;
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.footer-brand {
  font-family: 'Oswald', sans-serif;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 0.2em;
  margin-bottom: 20px;
}

@media (max-width: 900px) {
  :root {
    --section-y: 80px;
    --section-y-statement: 100px;
    --scroll-offset: 84px;
  }

  header {
    padding: 16px 20px;
    mix-blend-mode: normal;
    color: #000;
    background: rgba(255,255,255,0.92);
    border-bottom: 1px solid rgba(0,0,0,0.08);
  }
  .header-consult {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .menu-toggle { display: flex; }
  nav {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 22px;
    padding: 96px 32px 48px;
    background: #fff;
    color: #000;
    font-size: clamp(34px, 12vw, 56px);
    line-height: 1;
    overflow-y: auto;
    z-index: 105;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    overscroll-behavior: contain;
  }
  nav.is-open {
    transform: translateX(0);
    pointer-events: auto;
  }
  nav a {
    width: fit-content;
  }
  .hero-content {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 100svh;
    padding: 104px 0 64px;
    gap: clamp(22px, 5vw, 34px);
  }
  .hero::before {
    inset: 78px 16px 42px;
  }
  .hero-content::before {
    content: none;
  }
  .hero-img {
    display: block;
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    bottom: auto;
    order: 0;
    width: min(68vw, 320px);
    padding: 0;
    margin: 0;
    z-index: 1;
    opacity: 0.18;
    transform-origin: center;
    mix-blend-mode: normal;
    -webkit-mask-image: none;
    mask-image: none;
  }
  .hero-img.fade-up { transform: translateY(20px) scale(0.98); }
  .hero-img.fade-up.is-visible { opacity: 0.18; transform: translateY(0) scale(1); }
  .hero-img img {
    border: 0;
    box-shadow: none;
    filter: none;
  }
  .hero-text-wrap {
    order: 1;
    position: relative;
    z-index: 3;
    width: 100%;
    padding: 0 10px;
    margin-left: 0;
    background: transparent;
  }
  .hero-text-wrap::after {
    content: none;
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.93) 0%, rgba(255,255,255,0.78) 58%, rgba(255,255,255,0) 76%);
    z-index: -1;
  }
  .hero-title {
    white-space: normal;
    max-width: 100%;
    margin-inline: 0;
  }
  .service-grid { grid-template-columns: 1fr; }
  .scroll-down { display: none; }
  .bg-text { font-size: 40vw; top: 20px; }
  .service-card { padding: 30px 20px; }
  .policy { padding-inline: 20px; }
  .contact-actions { flex-direction: column; align-items: center; }
  .btn { width: min(100%, 320px); padding: 22px 30px; }
  .consultation-modal { padding: 18px; }
  .consultation-dialog {
    max-height: calc(100svh - 36px);
    padding: 24px 22px;
  }
  .consultation-heading {
    margin-bottom: 16px;
  }
  .consultation-group {
    margin-top: 17px;
  }
  .consultation-form-step {
    margin-top: 17px;
  }
  .filter-chip {
    min-height: 38px;
    padding: 7px 13px;
    font-size: 14px;
  }
  .consultation-field {
    margin-top: 18px;
  }
  .consultation-field textarea {
    min-height: 190px;
  }
  .consultation-input-grid,
  .consultation-input-grid--dates {
    grid-template-columns: 1fr;
  }
  .consultation-submit {
    margin-top: 18px;
    padding: 16px 26px;
  }
}

@media (max-width: 600px) {
  :root {
    --section-y: 72px;
    --section-y-statement: 88px;
    --section-header-gap: 36px;
    --grid-start-gap: 36px;
    --scroll-offset: 84px;
  }

  body {
    line-height: 1.75;
    letter-spacing: 0.035em;
  }

  .container {
    width: min(100% - 32px, 1200px);
  }

  header {
    padding: 12px 16px;
  }

  .brand {
    font-size: clamp(19px, 5.3vw, 24px);
    letter-spacing: 0.12em;
    max-width: calc(100vw - 178px);
  }

  .brand-section {
    letter-spacing: 0.02em;
  }

  .menu-toggle {
    width: 44px;
    height: 44px;
    border-width: 1.5px;
  }

  .header-consult {
    min-height: 44px;
    padding: 0 12px;
    border-width: 1.5px;
    font-size: 12px;
  }

  .hero {
    height: auto;
    min-height: 100svh;
    padding: 0;
  }

  .hero-content {
    min-height: 100svh;
    padding: clamp(86px, 12svh, 104px) 0 clamp(32px, 7svh, 54px);
    gap: clamp(14px, 2.8svh, 22px);
  }

  .hero-img {
    top: auto;
    right: auto;
    bottom: auto;
    width: min(64vw, 260px);
    opacity: 0.2;
  }
  .hero-img.fade-up { transform: translateY(16px) scale(0.98); }
  .hero-img.fade-up.is-visible { opacity: 0.2; transform: translateY(0) scale(1); }

  .hero-title {
    font-size: clamp(27px, 7vw, 36px);
    line-height: 1.16;
    letter-spacing: 0.01em;
    white-space: normal;
  }

  .hero-title-line-bottom {
    font-size: 1em;
    letter-spacing: 0;
  }

  .hero-sub {
    max-width: 24em;
    margin-inline: 0;
    margin-bottom: clamp(8px, 1.8svh, 12px);
    font-size: 13px;
    line-height: 1.5;
    letter-spacing: 0.055em;
  }

  .bg-text {
    left: 16px;
    max-width: calc(100vw - 32px);
    overflow: hidden;
    font-size: clamp(80px, 28vw, 120px);
  }

  .section-en {
    letter-spacing: 0.06em;
  }

  .section-ja {
    line-height: 1.5;
    letter-spacing: 0.035em;
  }

  .strength-intro {
    text-align: left;
    font-size: clamp(15px, 4.2vw, 17px);
    line-height: 1.95;
    letter-spacing: 0.025em;
    margin-bottom: 28px;
  }

  .strength-header {
    margin-bottom: 24px;
  }

  .strength-title {
    font-size: clamp(18px, 5vw, 22px);
    margin-bottom: 28px;
    padding-bottom: 8px;
    border-bottom-width: 2px;
  }

  .strength-lead {
    font-size: clamp(19px, 6vw, 24px);
    line-height: 1.55;
    margin-bottom: 18px;
  }

  .strength-punch {
    margin-bottom: 12px;
  }

  .strength-rhythm {
    font-size: clamp(20px, 6.5vw, 26px);
    padding: 7px 10px 8px;
    margin-bottom: 16px;
  }

  .strength-copy {
    font-size: 15px;
    line-height: 1.85;
  }

  .strength-list li {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 18px 0;
    font-size: 15px;
    line-height: 1.75;
  }

  .strength-list span {
    font-size: 25px;
  }

  .about-title {
    font-size: clamp(34px, 10vw, 46px);
    line-height: 1.12;
    margin-bottom: 28px;
  }

  .about-copy {
    font-size: 16px;
    line-height: 1.95;
  }

  .about-copy-strong {
    font-size: clamp(25px, 7.4vw, 31px);
    line-height: 1.18;
  }

  .about-principles {
    grid-template-columns: 1fr;
    margin-top: 46px;
  }

  .about-principle {
    padding: 30px 0 28px;
  }

  .service-grid {
    gap: 18px;
    margin-top: var(--grid-start-gap);
  }

  .service-card {
    padding: 28px 18px 24px;
    border-width: 3px;
  }

  .service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 0 #000;
  }

  .service-num {
    top: 18px;
    right: 18px;
    font-size: 44px;
  }

  .service-card h3 {
    font-size: 22px;
    line-height: 1.35;
    max-width: calc(100% - 76px);
    padding-right: 0;
  }

  .service-card p {
    font-size: 14.5px;
    line-height: 1.85;
    letter-spacing: 0.025em;
  }

  .works-scroll {
    gap: 16px;
    margin-inline: -16px;
    padding-inline: 16px;
    scroll-padding-inline: 16px;
  }

  .work-item {
    flex-basis: min(82vw, 340px);
  }

  .work-caption {
    padding: 20px 18px 22px;
  }

  .policy {
    padding: var(--section-y-statement) 0;
  }

  .policy p {
    text-align: center;
    font-size: 15px;
    line-height: 1.95;
    letter-spacing: 0.025em;
  }

  .flow-list {
    border-left-width: 3px;
    padding-left: 28px;
  }

  .flow-item {
    margin-bottom: 44px;
  }

  .flow-item::before {
    left: -39px;
    width: 18px;
    height: 18px;
    border-width: 3px;
  }

  .flow-item h3 {
    font-size: 22px;
    line-height: 1.35;
  }

  .flow-item p {
    font-size: 14.5px;
    line-height: 1.85;
    letter-spacing: 0.025em;
  }

  .contact {
    padding: var(--section-y-statement) 0;
  }

  .btn {
    width: 100%;
    max-width: 340px;
    padding: 20px 24px;
    font-size: 17px;
  }
}