:root {
  --olive: #5c6230;
  --olive-dark: #3e451d;
  --olive-soft: #e8ead8;
  --cream: #f7f6ef;
  --sand: #e5d9ad;
  --ink: #25251f;
  --muted: #5f5f55;
  --line: #c9c99e;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", serif;
  letter-spacing: 0;
  line-height: 1.9;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 220px 1fr;
  align-items: center;
  min-height: 112px;
  padding: 14px clamp(28px, 8vw, 170px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(62, 69, 29, 0.12);
}

.logo {
  position: relative;
  display: inline-grid;
  justify-items: center;
  width: 150px;
  color: #111;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 900;
  line-height: 1;
}

.roof {
  position: relative;
  width: 90px;
  height: 34px;
  margin-bottom: 5px;
  background: #111;
  clip-path: polygon(50% 0, 100% 58%, 87% 58%, 50% 20%, 13% 58%, 0 58%);
}

.roof::before,
.roof::after {
  content: "";
  display: none;
}

.logo-main {
  display: inline-block;
  padding: 6px 10px 5px;
  background: #e4ab20;
  font-size: 15px;
  letter-spacing: 0;
}

.logo-sub {
  margin-top: 4px;
  font-size: 10px;
  letter-spacing: 0.08em;
}

.global-nav {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: clamp(22px, 3.2vw, 48px);
  color: var(--olive-dark);
  font-size: 17px;
  font-weight: 700;
  white-space: nowrap;
}

.global-nav a {
  position: relative;
  padding: 11px 0;
}

.global-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 3px;
  background: #c9d6dc;
  transform: translateX(-50%);
  transition: width 180ms ease;
}

.global-nav a:hover::after {
  width: 42px;
}

.main-visual {
  position: relative;
  overflow: hidden;
  height: min(560px, 48vw);
  min-height: 390px;
}

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

.main-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.12);
}

.main-copy {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 50%;
  width: min(760px, calc(100% - 32px));
  color: #fff;
  font-size: clamp(28px, 3.2vw, 48px);
  line-height: 1.75;
  text-align: center;
  text-shadow: 0 3px 16px rgba(0, 0, 0, 0.45);
  transform: translate(-50%, -50%);
}

.main-copy p {
  margin: 0;
}

.section {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
  padding: 84px 0;
  scroll-margin-top: 132px;
}

.section-label {
  margin: 0 0 18px;
  color: var(--olive);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.1;
  text-align: center;
}

.concept {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 72px;
  align-items: center;
  padding-bottom: 118px;
}

.concept-text .section-label,
.service-panel .section-label,
.flow .section-label,
.contact-text .section-label,
.company .section-label,
.work-text .section-label {
  text-align: left;
}

.concept h1,
.service-panel h2,
.work-detail h2,
.flow h2,
.contact h2 {
  margin: 0 0 22px;
  font-size: clamp(26px, 3.2vw, 42px);
  line-height: 1.45;
  font-weight: 700;
}

.concept p:not(.section-label),
.service-panel p,
.work-text p,
.contact-text p {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 16px;
}

.tilt-photo {
  margin: 0;
  overflow: hidden;
  background: var(--olive-soft);
  box-shadow: 0 18px 34px rgba(40, 44, 20, 0.15);
}

.concept-photo {
  transform: rotate(7deg);
}

.service-photo {
  transform: rotate(-5deg);
}

.tilt-photo img {
  width: 100%;
  aspect-ratio: 1 / 1.04;
  object-fit: cover;
}

.service-area {
  position: relative;
  padding: 78px 0 98px;
  overflow: hidden;
  background: var(--olive-soft);
  clip-path: polygon(0 8%, 50% 0, 100% 8%, 100% 100%, 0 100%);
}

.service-inner {
  display: grid;
  grid-template-columns: minmax(300px, 430px) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
}

.service-panel {
  padding: 56px 64px;
  background: rgba(255, 255, 255, 0.45);
}

.contact-actions a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 22px;
  border: 1px solid #a99b56;
  background: var(--sand);
  color: var(--olive-dark);
  font-size: 18px;
  font-weight: 700;
}

.banner-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(240px, 1fr));
  gap: clamp(40px, 10vw, 170px);
  width: min(840px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 26px;
}

.photo-banner {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  color: #fff;
  text-align: center;
}

.photo-banner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.48);
  transition: transform 220ms ease;
}

.photo-banner:hover img {
  transform: scale(1.04);
}

.photo-banner span,
.photo-banner em {
  position: relative;
  z-index: 2;
}

.photo-banner span {
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 700;
  line-height: 1.55;
}

.photo-banner em {
  align-self: end;
  margin-bottom: 42px;
  font-size: 18px;
  font-style: normal;
  font-weight: 700;
}

.quick-contact {
  display: grid;
  grid-template-columns: repeat(2, minmax(240px, 1fr));
  gap: 54px;
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0 70px;
  text-align: center;
}

.quick-contact > div {
  display: grid;
  grid-template-rows: minmax(104px, auto) auto;
  align-items: end;
}

.quick-contact p {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 104px;
  margin: 0 0 18px;
  color: #2869ff;
  font-size: clamp(22px, 2.7vw, 34px);
  line-height: 1.35;
}

.big-action {
  display: grid;
  place-items: center;
  min-height: 132px;
  padding: 18px;
  border-radius: 28px;
  background: #2aa7e9;
  color: #fff;
  font-size: clamp(26px, 3vw, 42px);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 900;
}

.big-action.map {
  background: var(--olive);
}

.tag {
  display: inline-flex;
  justify-content: center;
  padding: 4px 8px;
  border-radius: 3px;
  background: var(--olive);
  color: #fff;
  font-size: 14px;
}

.work-detail {
  display: grid;
  grid-template-columns: minmax(320px, 0.94fr) minmax(0, 1.06fr);
  gap: 52px;
  align-items: center;
}

.work-image {
  overflow: hidden;
  border: 1px solid var(--line);
}

.work-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.works-lead {
  text-align: center;
}

.works-lead .section-label {
  text-align: center;
}

.works-lead h2,
.works-page-intro h2,
.case-detail-page h2,
.add-case-note h2 {
  margin: 0 0 18px;
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.45;
}

.works-lead p,
.works-page-intro p,
.case-detail-text p,
.add-case-note p {
  margin: 0 auto;
  max-width: 760px;
  color: var(--ink);
}

.text-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  margin-top: 28px;
  padding: 0 34px;
  border: 1px solid var(--olive);
  background: var(--sand);
  color: var(--olive-dark);
  font-weight: 700;
}

.sub-visual {
  position: relative;
  height: min(430px, 40vw);
  min-height: 300px;
  overflow: hidden;
}

.sub-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.58);
}

.sub-copy {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  color: #fff;
  text-align: center;
  text-shadow: 0 3px 16px rgba(0, 0, 0, 0.42);
}

.sub-copy p {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1;
}

.sub-copy h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.25;
}

.works-page-intro {
  text-align: center;
}

.works-page-intro .section-label {
  text-align: center;
}

.case-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  padding-top: 16px;
}

.case-card {
  border: 1px solid var(--line);
  background: #fff;
}

.case-card a {
  display: grid;
  height: 100%;
}

.case-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.case-card-body {
  display: grid;
  gap: 10px;
  padding: 24px;
}

.case-card h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1.45;
}

.case-card p {
  margin: 0;
  color: var(--muted);
}

.case-detail-page {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.05fr);
  gap: 54px;
  align-items: center;
}

.case-detail-image {
  border: 1px solid var(--line);
}

.case-detail-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.case-detail-text .section-label {
  text-align: left;
}

.case-detail-text p {
  margin-left: 0;
}

.case-meta {
  margin: 0 0 22px;
  border-top: 1px solid var(--line);
}

.case-meta div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.case-meta dt {
  color: var(--olive);
  font-weight: 700;
}

.case-meta dd {
  margin: 0;
}

.add-case-note {
  margin-bottom: 76px;
  padding: 42px;
  border: 1px solid var(--line);
  background: var(--cream);
}

.flow {
  width: 100%;
  max-width: none;
  padding-left: max(20px, calc((100vw - 1100px) / 2));
  padding-right: max(20px, calc((100vw - 1100px) / 2));
  background: var(--cream);
}

.flow ol {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.flow li {
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  background: #fff;
}

.flow span {
  display: block;
  color: var(--olive);
  font-size: 20px;
  font-weight: 700;
}

.flow strong {
  display: block;
  margin: 10px 0 8px;
  font-size: 21px;
}

.flow p {
  margin: 0;
  color: var(--muted);
}

.contact {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(360px, 1.18fr);
  gap: 54px;
  align-items: start;
}

.contact-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(150px, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.contact-actions a:last-child {
  background: #fff;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 34px;
  border: 1px solid var(--line);
  background: var(--cream);
}

.form-title {
  margin: 0 0 4px;
  color: var(--olive);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--olive-dark);
  font-weight: 700;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 16px;
}

.contact-form input,
.contact-form select {
  min-height: 48px;
  padding: 9px 12px;
}

.contact-form textarea {
  resize: vertical;
  min-height: 150px;
  padding: 12px;
}

.contact-form button {
  min-height: 58px;
  border: 1px solid var(--olive);
  background: var(--olive);
  color: #fff;
  font: inherit;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
}

.form-note {
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.form-status {
  margin: 0;
  font-weight: 700;
}

.form-status a {
  display: inline-flex;
  color: var(--olive);
  border-bottom: 1px solid currentColor;
}

.map-panel {
  grid-column: 1 / -1;
  overflow: hidden;
  min-height: 430px;
  border: 1px solid var(--line);
}

.map-panel iframe {
  width: 100%;
  height: 100%;
  min-height: 430px;
  border: 0;
}

.company {
  padding-top: 18px;
}

.company dl {
  margin: 0;
  border-top: 1px solid var(--line);
}

.company div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.company dt {
  color: var(--olive);
  font-weight: 700;
}

.company dd {
  margin: 0;
}

.site-footer {
  display: flex;
  justify-content: center;
  gap: 56px;
  padding: 30px 20px;
  background: var(--olive);
  color: #fff;
  font-size: 14px;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 12px;
    min-height: auto;
    padding: 14px 20px;
  }

  .global-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 24px;
    font-size: 15px;
  }

  .main-visual {
    height: 480px;
  }

  .concept,
  .service-inner,
  .work-detail,
  .contact,
  .case-detail-page {
    grid-template-columns: 1fr;
  }

  .concept {
    gap: 38px;
  }

  .concept-photo,
  .service-photo {
    transform: none;
  }

  .service-panel {
    padding: 36px 26px;
  }

  .flow ol {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 640px) {
  body {
    line-height: 1.75;
  }

  .site-header {
    position: static;
  }

  .global-nav {
    display: none;
  }

  .main-visual {
    min-height: 390px;
    height: 72vw;
  }

  .sub-visual {
    min-height: 260px;
    height: 58vw;
  }

  .main-copy {
    font-size: 25px;
  }

  .section {
    width: min(100% - 28px, 1100px);
    padding: 58px 0;
  }

  .concept {
    padding-bottom: 78px;
  }

  .service-area {
    clip-path: polygon(0 3%, 50% 0, 100% 3%, 100% 100%, 0 100%);
  }

  .service-inner,
  .banner-links,
  .quick-contact {
    width: min(100% - 28px, 1100px);
  }

  .banner-links,
  .quick-contact,
  .flow ol,
  .contact-actions,
  .case-list {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 24px 18px;
  }

  .quick-contact {
    gap: 28px;
  }

  .quick-contact > div {
    grid-template-rows: auto auto;
  }

  .quick-contact p {
    min-height: auto;
  }

  .big-action {
    min-height: 90px;
    border-radius: 18px;
    font-size: 28px;
  }

  .tag {
    font-size: 12px;
  }

  .case-meta div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .add-case-note {
    padding: 28px 18px;
  }

  .company div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .site-footer {
    display: grid;
    gap: 10px;
    text-align: center;
  }
}