* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: #202124;
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP",
               "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  line-height: 1.8;
}

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

.container {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  color: #ffffff;
  border-bottom: 1px solid #eee;
  background: rgba(73, 92, 177, .96);
}

.site-header .logo {
  font-weight: 500;
  letter-spacing: .08em;
}

.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .08em;
}

.nav nav {
  display: flex;
  gap: 28px;
  font-size: 14px;
}

.nav nav a:hover {
  opacity: .6;
}

.hero {
  background: #fffdf7;
  padding: 100px 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 70px;
}

.eyebrow {
  margin: 0 0 12px;
  color: #59636e;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
}

h1, h2, h3 {
  line-height: 1.3;
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(38px, 5vw, 58px);
  letter-spacing: -.04em;
}

h2 {
  margin: 0 0 20px;
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: -.03em;
}

.lead {
  max-width: 580px;
  margin: 0 0 34px;
  color: #59636e;
  font-size: 18px;
}

.button {
  display: inline-block;
  padding: 13px 24px;
  border-radius: 6px;
  background: #202124;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  transition: transform .15s ease, opacity .15s ease;
}

.button:hover {
  opacity: .85;
  transform: translateY(-1px);
}

.product-card {
  padding: 20px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .10);
}

.product-placeholder {
  min-height: 390px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #e9edf2;
  color: #7a838d;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: .12em;
  text-align: center;
}

.product-card img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.section {
  background: #f7f9fc;
  padding: 100px 0;
}

.section-light {
  background: #fffdf7;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 55px;
}

.section-heading > p:last-child {
  color: #69727c;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature {
  padding: 34px;
  border: 1px solid #e7e9ec;
  border-radius: 10px;
  background: #fff;
}

.icon {
  margin-bottom: 20px;
  color: #68727d;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
}

.feature-image {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 25px;
  border-radius: 8px;
}

.feature h3 {
  margin: 0 0 12px;
  font-size: 21px;
}

.feature p {
  margin: 0;
  color: #69727c;
  font-size: 15px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
  align-items: start;
}

.split > div:last-child {
  color: #59636e;
}

.spec-table {
  border-top: 1px solid #ddd;
}

.spec-table > div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid #ddd;
}

.spec-table span {
  color: #69727c;
  font-size: 14px;
}

.spec-table strong {
  font-weight: 500;
}

.contact {
  padding: 90px 0;
  background: #202124;
  color: #fff;
  text-align: center;
}

.contact .eyebrow {
  color: #aeb5bd;
}

.contact h2 {
  margin-bottom: 12px;
}

.contact p:not(.eyebrow) {
  margin: 0 auto 28px;
  color: #c7ccd2;
}

.button-white {
  background: #fff;
  color: #202124;
}

.site-footer {
  background: #18191b;
  color: #aeb5bd;
}

.footer-inner {
  min-height: 72px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  font-size: 13px;
}

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

@media (max-width: 760px) {
  .nav {
    padding: 12px 0;
    align-items: flex-start;
  }

  .nav nav {
    display: none;
  }

  .hero {
    padding: 65px 0;
  }

  .hero-inner,
  .split {
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .product-placeholder {
    min-height: 280px;
  }

  .section {
    padding: 70px 0;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .spec-table > div {
    grid-template-columns: 120px 1fr;
  }

  .footer-inner {
    padding: 20px 0;
    flex-direction: column;
    align-items: flex-start;
  }
}