:root {
  color-scheme: light;
  --blue: #5a9ddd;
  --blue-dark: #4f94d5;
  --line: #edf7fd;
  --ink: #101820;
  --concept: #eaf6fd;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  border-top: 2px solid #5bc4d6;
  background: #fff;
  color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Yu Gothic Medium", Meiryo, sans-serif;
  font-weight: 700;
  letter-spacing: 0;
}

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

.hero {
  width: 100%;
  overflow: hidden;
}

.hero img {
  width: 100%;
  height: auto;
}

.section {
  width: min(1900px, calc(100% - 48px));
  margin: 0 auto;
}

.lead-section {
  padding: 86px 0 104px;
}

.section-title {
  margin: 0;
  color: var(--blue);
  font-size: clamp(34px, 3.2vw, 58px);
  line-height: 1.28;
  text-align: center;
}

.title-line {
  width: min(1880px, 74vw);
  height: 18px;
  margin: -12px auto 0;
  background: var(--line);
}

.flow-section {
  padding-bottom: 128px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 60px;
  width: min(1880px, 100%);
  margin: 0 auto;
}

.step-card {
  position: relative;
  min-height: 535px;
  padding: 70px 42px 48px;
  background: var(--blue-dark);
  color: #fff;
}

.step-card::after {
  position: absolute;
  top: 50%;
  right: -58px;
  width: 0;
  height: 0;
  border-top: 106px solid transparent;
  border-bottom: 106px solid transparent;
  border-left: 58px solid var(--blue-dark);
  content: "";
  transform: translateY(-50%);
}

.step-card:last-child::after {
  display: none;
}

.step-card h2 {
  margin: 0 0 36px;
  font-size: clamp(24px, 1.8vw, 34px);
  line-height: 1.08;
}

.step-card p {
  margin: 0;
  font-size: clamp(22px, 1.7vw, 34px);
  line-height: 1.02;
}

.strength-section {
  padding: 0 0 180px;
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 78px;
  width: min(1230px, 100%);
  margin: 52px auto 0;
}

.strength-grid img {
  width: 100%;
  aspect-ratio: 354 / 266;
  object-fit: cover;
}

.strength-grid h3 {
  margin: 22px 0 0;
  color: var(--ink);
  font-size: clamp(25px, 2vw, 38px);
  line-height: 1.2;
  text-align: center;
}

.linen-section {
  padding-bottom: 150px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 150px;
  row-gap: 136px;
  width: min(1440px, 100%);
  margin: 104px auto 0;
}

.service-item {
  display: grid;
  grid-template-columns: 360px 1fr;
  align-items: center;
  gap: 44px;
}

.service-item img {
  width: 360px;
  height: 240px;
  object-fit: cover;
}

.service-item h3 {
  margin: 0 0 54px;
  color: var(--blue);
  font-size: clamp(28px, 2.1vw, 38px);
  line-height: 1.2;
}

.service-item p {
  margin: 0;
  font-size: clamp(20px, 1.45vw, 30px);
  line-height: 1.65;
}

.concept-wrap {
  display: flex;
  justify-content: center;
  padding: 34px 24px 174px;
}

.concept-box {
  width: min(1390px, 74vw);
  min-height: 530px;
  padding: 62px 80px 56px;
  background: var(--concept);
  clip-path: polygon(9% 0, 100% 0, 91% 100%, 0% 100%);
  text-align: center;
}

.concept-label {
  margin: 0 0 70px;
  font-size: clamp(24px, 1.7vw, 32px);
  font-style: italic;
  line-height: 1;
}

.concept-box p:last-child {
  margin: 0;
  font-size: clamp(24px, 1.65vw, 34px);
  line-height: 1.58;
}

.area-section {
  padding-bottom: 154px;
  text-align: center;
}

.area-text {
  margin: 120px 0 96px;
  font-size: clamp(20px, 1.35vw, 28px);
}

.map-link {
  display: block;
  width: min(1550px, 82vw);
  margin: 0 auto;
  transition: opacity 0.2s ease;
}

.map-link:hover {
  opacity: 0.88;
}

.map-image {
  width: 100%;
}

.company-section {
  padding: 0 0 72px;
  text-align: center;
}

.company-table {
  width: min(1520px, 74vw);
  margin: 114px auto 210px;
  padding: 28px 54px;
  border: 2px solid #d1d1d1;
  text-align: left;
}

.company-table div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 0;
}

.company-table dt,
.company-table dd {
  margin: 0;
  padding: 20px 0;
  font-size: clamp(22px, 1.55vw, 32px);
  line-height: 1.34;
}

.contact-copy {
  margin: 0;
  font-size: clamp(20px, 1.4vw, 28px);
  line-height: 1.5;
}

@media (max-width: 1180px) {
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 46px 64px;
  }

  .step-card {
    min-height: 420px;
  }

  .step-card:nth-child(2)::after,
  .step-card:last-child::after {
    display: none;
  }

  .strength-grid,
  .service-grid {
    gap: 52px;
  }

  .service-item {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .service-item img {
    width: 100%;
    height: auto;
    aspect-ratio: 360 / 240;
  }
}

@media (max-width: 760px) {
  body {
    font-weight: 700;
  }

  .section {
    width: min(100% - 28px, 680px);
  }

  .hero {
    height: auto;
  }

  .lead-section {
    padding: 54px 0 70px;
  }

  .title-line {
    width: 100%;
    height: 10px;
    margin-top: -8px;
  }

  .flow-section {
    padding-bottom: 78px;
  }

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

  .steps {
    gap: 24px;
  }

  .step-card {
    min-height: 0;
    padding: 34px 28px;
  }

  .step-card::after {
    display: none;
  }

  .step-card h2 {
    margin-bottom: 22px;
  }

  .step-card p {
    line-height: 1.32;
  }

  .strength-section {
    padding-bottom: 90px;
  }

  .strength-grid {
    margin-top: 34px;
  }

  .linen-section {
    padding-bottom: 84px;
  }

  .service-grid {
    margin-top: 58px;
    row-gap: 60px;
  }

  .service-item h3 {
    margin-bottom: 18px;
  }

  .concept-wrap {
    padding: 0 14px 92px;
  }

  .concept-box {
    width: 100%;
    min-height: 0;
    padding: 42px 26px;
    clip-path: none;
  }

  .concept-label {
    margin-bottom: 32px;
  }

  .area-section {
    padding-bottom: 84px;
  }

  .area-text {
    margin: 54px 0 44px;
  }

  .map-link,
  .company-table {
    width: 100%;
  }

  .company-table {
    margin: 64px auto 90px;
    padding: 18px 20px;
  }

  .company-table div {
    grid-template-columns: 92px 1fr;
  }
}