:root {
  --navy: #104d78;
  --navy-deep: #0b3453;
  --blue: #2387bd;
  --teal: #2e768d;
  --sky: #eef7fa;
  --orange: #ff7a22;
  --yellow: #ffcb42;
  --ink: #253d4c;
  --muted: #667d89;
  --line: #d7e3e9;
  --white: #fff;
  --shadow: 0 10px 25px rgba(12, 58, 83, 0.09);
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
  line-height: 1.8;
  background: #fff;
}
a {
  color: inherit;
  text-decoration: none;
}
.container {
  width: min(1120px, calc(100% - 40px));
  margin: auto;
}
.narrow {
  max-width: 1000px;
}
.site-header {
  height: 74px;
  background: #fff;
  border-bottom: 1px solid #edf2f4;
  position: sticky;
  top: 0;
  z-index: 20;
}
.header-inner {
  width: min(1240px, calc(100% - 36px));
  height: 100%;
  margin: auto;
  display: flex;
  align-items: center;
  gap: 30px;
}
.brand {
  display: flex;
  flex-direction: column;
  color: var(--navy);
  line-height: 1;
}
.brand strong {
  font-size: 25px;
  font-style: italic;
  letter-spacing: -0.05em;
}
.brand small {
  margin-top: 5px;
  font-size: 8px;
}
.breadcrumb {
  margin: 0;
  color: #758793;
  font-size: 12px;
}
.breadcrumb span {
  margin: 0 7px;
}
.header-inner nav {
  display: flex;
  gap: 10px;
  margin-left: auto;
}
.button {
  min-height: 54px;
  padding: 0 31px;
  border-radius: 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  transition: 0.2s;
}
.button:hover {
  transform: translateY(-2px);
  filter: brightness(1.03);
}
.button-small {
  min-height: 44px;
  padding: 0 21px;
  font-size: 12px;
}
.button-outline {
  color: var(--orange);
  border: 1.5px solid var(--orange);
  background: #fff;
}
.button-orange {
  color: #fff;
  background: var(--orange);
  border: 1.5px solid var(--orange);
}
.hero {
  color: #fff;
  text-align: center;
  background: linear-gradient(115deg, var(--navy) 0%, #196da0 60%, #2a99c9);
  position: relative;
  overflow: hidden;
}
.hero:before,
.hero:after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}
.hero:before {
  width: 500px;
  height: 500px;
  left: -250px;
  top: -330px;
}
.hero:after {
  width: 420px;
  height: 420px;
  right: -180px;
  bottom: -340px;
}
.hero-inner {
  position: relative;
  z-index: 1;
  padding: 62px 0 57px;
}
.badge {
  display: inline-flex;
  margin: 0;
  padding: 5px 20px;
  background: var(--yellow);
  color: #153b54;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
}
.hero h1 {
  margin: 18px 0 5px;
  font-size: clamp(33px, 4.6vw, 54px);
  letter-spacing: 0.02em;
}
.hero h1 em {
  font-style: normal;
  color: #ffd253;
}
.hero-lead {
  max-width: 900px;
  margin: 0 auto 23px;
  color: #e6f4fb;
  font-size: 15px;
}
.hero-tags {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
  list-style: none;
}
.hero-tags li {
  padding: 6px 18px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  font-size: 13px;
  font-weight: 700;
}
.section {
  padding: 75px 0;
}
.section-heading {
  text-align: center;
  margin-bottom: 22px;
}
.section-heading > p {
  margin: 0;
  color: #df6678;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.2em;
}
.section-heading h2 {
  margin: 3px 0;
  color: var(--navy-deep);
  font-size: clamp(25px, 3.2vw, 34px);
}
.intro {
  max-width: 900px;
  margin: 0 auto 30px;
  text-align: center;
}
.comparison {
  display: grid;
  grid-template-columns: 1fr 42px 1fr;
  align-items: center;
}
.comparison article {
  height: 100%;
  overflow: hidden;
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow);
}
.comparison h3 {
  margin: 0;
  padding: 15px 25px;
  color: #fff;
  background: #7895a5;
  text-align: center;
  font-size: large;
}
.comparison .future h3 {
  background: var(--navy);
}
.comparison ul {
  padding: 18px 35px 18px 50px;
  margin: 0;
  font-weight: 700;
}
.comparison li {
  margin: 6px 0;
}
.arrow {
  color: var(--teal);
  font-size: 34px;
  font-weight: 900;
  text-align: center;
}
.conclusion {
  margin: 24px 0 0;
  padding: 12px 18px;
  border: 2px solid var(--navy);
  border-radius: 8px;
  text-align: center;
  color: var(--navy);
  font-size: 18px;
  font-weight: 900;
}
.roadmap-section {
  background: var(--sky);
}
.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.roadmap article {
  position: relative;
  padding: 0 25px 23px;
  border-radius: 10px;
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.roadmap article:after {
  content: "";
  position: absolute;
  right: -18px;
  top: 0;
  border-top: 35px solid transparent;
  border-bottom: 35px solid transparent;
  border-left: 18px solid #2c748b;
  z-index: 2;
}
.roadmap article:last-child:after {
  display: none;
}
.roadmap h3 {
  margin: 0 -25px 18px;
  padding: 14px 25px;
  background: #2c748b;
  color: #fff;
  text-align: center;
  font-size: 17px;
}
.roadmap h3 span {
  display: block;
  color: #bce6f1;
  letter-spacing: 0.16em;
}
.roadmap p,
.roadmap li {
  font-size: medium;
}
.roadmap h4 {
  margin: 13px 0 0;
  color: #17708d;
  font-size: large;
}
.roadmap ul {
  margin: 0;
  padding-left: 20px;
}
.center {
  text-align: center;
  margin-top: 22px;
}
.button-pdf {
  min-height: 43px;
  padding: 0 20px;
  color: #e45d49;
  border: 1px solid #f1a292;
  background: #fff;
}
.tools-section {
  background: #fff;
}
.tech-list {
  border: 1px solid var(--line);
  margin: 0;
}
.tech-list > div {
  display: grid;
  grid-template-columns: 190px 1fr;
  border-bottom: 1px solid var(--line);
}
.tech-list > div:last-child {
  border-bottom: 0;
}
.tech-list dt {
  padding: 15px 20px;
  background: var(--navy);
  color: #fff;
  font-weight: 900;
}
.tech-list dd {
  margin: 0;
  padding: 15px 20px;
  background: #fff;
}
.note {
  color: #7f909a;
}
.contact {
  padding: 65px 0;
  background: var(--sky);
  text-align: center;
}
.contact > div > p {
  margin: 0;
  color: #df6678;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.2em;
}
.contact h2 {
  margin: 5px 0 25px;
  color: var(--navy-deep);
  font-size: 29px;
}
.contact-actions {
  display: flex;
  justify-content: center;
  gap: 22px;
}
.contact-actions .button {
  width: 290px;
  border-radius: 999px;
}
.button-white {
  color: var(--orange);
  border: 2px solid var(--orange);
  background: #fff;
}
footer {
  padding: 25px 0;
  background: var(--navy-deep);
  color: #b8cad4;
  font-size: 10px;
}
footer .container {
  display: flex;
  justify-content: center;
  gap: 18px;
}
@media (max-width: 800px) {
  .breadcrumb {
    display: none;
  }
  .roadmap {
    grid-template-columns: 1fr;
  }
  .roadmap article:after {
    display: none;
  }
  .comparison {
    grid-template-columns: 1fr;
  }
  .arrow {
    transform: rotate(90deg);
  }
  .hero-inner {
    padding: 50px 0;
  }
  .header-inner {
    gap: 12px;
  }
  .header-inner nav .button-outline {
    display: none;
  }
}
@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, 1120px);
  }
  .site-header {
    height: 64px;
  }
  .header-inner nav .button {
    min-height: 38px;
    padding: 0 13px;
  }
  .hero h1 {
    font-size: 31px;
  }
  .hero-lead {
    font-size: 13px;
  }
  .hero-tags {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
  }
  .hero-tags li {
    padding: 5px 8px;
    font-size: 10px;
  }
  .section {
    padding: 55px 0;
  }
  .intro {
    text-align: left;
  }
  .comparison ul {
    padding-left: 38px;
    font-size: 12px;
  }
  .conclusion {
    font-size: 15px;
  }
  .tech-list > div {
    grid-template-columns: 1fr;
  }
  .tech-list dt,
  .tech-list dd {
    padding: 11px 15px;
  }
  .contact h2 {
    font-size: 24px;
  }
  .contact-actions {
    display: grid;
    gap: 12px;
  }
  .contact-actions .button {
    width: min(100%, 310px);
  }
  footer .container {
    display: grid;
    text-align: center;
    gap: 3px;
  }
}