:root {
  color-scheme: light;
  --navy: #071b47;
  --blue: #1769f5;
  --blue-soft: #e8f0ff;
  --ink-soft: #526079;
  --line: #dfe7f2;
  --paper: #ffffff;
  --canvas: #f7f9fd;
  --notice: #f0f5ff;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI",
    "Yu Gothic", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  color: var(--navy);
  background:
    linear-gradient(var(--line), var(--line)) 32px 0 / 1px 100% no-repeat,
    var(--canvas);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 max(32px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgb(223 231 242 / 75%);
  background: rgb(247 249 253 / 88%);
  backdrop-filter: blur(18px) saturate(160%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--navy);
  font-size: 19px;
  font-weight: 850;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: var(--blue-soft);
}

.brand-mark i,
.voice-icon i {
  display: block;
  width: 3px;
  border-radius: 99px;
  background: var(--blue);
}

.brand-mark i:nth-child(1),
.brand-mark i:nth-child(5) {
  height: 8px;
}

.brand-mark i:nth-child(2),
.brand-mark i:nth-child(4) {
  height: 15px;
}

.brand-mark i:nth-child(3) {
  height: 22px;
}

.contact-link {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
  text-underline-offset: 4px;
}

main {
  width: min(1180px, calc(100% - 64px));
  margin: 0 auto;
}

.hero {
  padding: 104px 0 88px;
  border-bottom: 1px solid var(--line);
}

.eyebrow,
.section-number,
.contents > p {
  margin: 0;
  color: var(--blue);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.14em;
}

h1 {
  max-width: 920px;
  margin: 12px 0 20px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1.06;
  letter-spacing: -0.055em;
}

.lead {
  max-width: 720px;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.8;
}

.updated {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 34px;
  color: var(--ink-soft);
  font-size: 13px;
}

.updated strong {
  color: var(--navy);
}

.dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #9aabc2;
}

.content-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 760px);
  justify-content: space-between;
  gap: 80px;
  padding: 72px 0 120px;
}

.contents {
  position: sticky;
  top: 112px;
  align-self: start;
}

.contents ol {
  display: grid;
  gap: 4px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.contents a {
  display: block;
  padding: 7px 0;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.contents a:hover,
.contents a:focus-visible {
  color: var(--blue);
}

.policy > section {
  padding: 0 0 72px;
}

.policy > section + section {
  padding-top: 72px;
  border-top: 1px solid var(--line);
}

h2 {
  margin: 7px 0 22px;
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.25;
  letter-spacing: -0.035em;
}

h3 {
  margin: 0 0 4px;
  font-size: 16px;
  letter-spacing: -0.015em;
}

p {
  margin: 0 0 18px;
}

.key-values {
  margin: 30px 0 0;
  border-top: 1px solid var(--line);
}

.key-values > div {
  display: grid;
  grid-template-columns: 150px 1fr;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.key-values dt {
  color: var(--ink-soft);
  font-size: 13px;
}

.key-values dd {
  margin: 0;
  font-weight: 750;
}

.data-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  overflow: hidden;
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--line);
}

.data-list > div {
  min-height: 142px;
  padding: 24px;
  background: var(--paper);
}

.data-list > div:last-child {
  grid-column: 1 / -1;
}

.data-list p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.plain-list {
  display: grid;
  gap: 12px;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}

.plain-list li {
  position: relative;
  padding-left: 28px;
}

.plain-list li::before {
  position: absolute;
  top: 0.74em;
  left: 2px;
  width: 9px;
  height: 4px;
  border-bottom: 2px solid var(--blue);
  border-left: 2px solid var(--blue);
  content: "";
  transform: rotate(-45deg);
}

.voice-section {
  padding: 34px !important;
  border: 1px solid #cddcff !important;
  border-radius: 26px;
  background: var(--notice);
}

.voice-heading {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 22px;
}

.voice-heading h2 {
  margin-bottom: 0;
}

.voice-icon {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 58px;
  height: 58px;
  border-radius: 19px;
  background: var(--paper);
}

.voice-icon i:nth-child(1),
.voice-icon i:nth-child(5) {
  height: 14px;
}

.voice-icon i:nth-child(2),
.voice-icon i:nth-child(4) {
  height: 26px;
}

.voice-icon i:nth-child(3) {
  height: 38px;
}

.voice-rules {
  margin: 30px 0;
  border-top: 1px solid #cddcff;
}

.voice-rules > div {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  padding: 17px 0;
  border-bottom: 1px solid #cddcff;
}

.voice-rules span {
  color: var(--blue);
  font-size: 11px;
  font-weight: 850;
}

.voice-rules p {
  margin: 0;
}

.voice-rules strong {
  display: block;
  margin-bottom: 2px;
}

.note {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.service-list {
  margin: 28px 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.service-list li {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.service-list span {
  color: var(--ink-soft);
  font-size: 13px;
}

.retention-table {
  overflow: hidden;
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--paper);
}

.table-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.8fr) minmax(240px, 1.2fr);
}

.table-row + .table-row {
  border-top: 1px solid var(--line);
}

.table-row > span {
  padding: 15px 18px;
}

.table-row > span:first-child {
  color: var(--ink-soft);
  font-size: 13px;
}

.table-head {
  background: var(--blue-soft);
  font-weight: 800;
}

.table-head > span:first-child {
  color: var(--navy);
}

.contact-section {
  padding: 34px !important;
  border: 1px solid var(--line) !important;
  border-radius: 26px;
  background: var(--paper);
}

.email-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  margin-top: 24px;
  padding: 0 20px;
  border-radius: 16px;
  color: white;
  background: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

footer {
  display: flex;
  justify-content: space-between;
  width: min(1180px, calc(100% - 64px));
  margin: 0 auto;
  padding: 28px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 12px;
}

:focus-visible {
  outline: 3px solid rgb(23 105 245 / 35%);
  outline-offset: 4px;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --navy: #eef4ff;
    --blue: #76aaff;
    --blue-soft: #172d4b;
    --ink-soft: #aab8cc;
    --line: #293b53;
    --paper: #111d2e;
    --canvas: #07111f;
    --notice: #0d213c;
  }

  .site-header {
    border-bottom-color: rgb(41 59 83 / 75%);
    background: rgb(7 17 31 / 88%);
  }

  .dot { background: #74849a; }
  .voice-section { border-color: #29466f !important; }
  .voice-rules { border-top-color: #29466f; }
  .voice-rules > div { border-bottom-color: #29466f; }
  .email-button { color: white; background: #2d72db; }
}

@media (max-width: 820px) {
  body {
    background: var(--canvas);
  }

  .site-header {
    height: 64px;
    padding: 0 20px;
  }

  main,
  footer {
    width: min(100% - 40px, 680px);
  }

  .hero {
    padding: 68px 0 58px;
  }

  .lead br {
    display: none;
  }

  .content-layout {
    display: block;
    padding: 46px 0 80px;
  }

  .contents {
    position: static;
    margin-bottom: 58px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--paper);
  }

  .contents ol {
    grid-template-columns: 1fr 1fr;
    column-gap: 18px;
  }

  .policy > section {
    padding-bottom: 54px;
  }

  .policy > section + section {
    padding-top: 54px;
  }

  .voice-section,
  .contact-section {
    padding: 24px !important;
    margin-right: -4px;
    margin-left: -4px;
  }

  .data-list {
    grid-template-columns: 1fr;
  }

  .data-list > div,
  .data-list > div:last-child {
    grid-column: 1;
    min-height: auto;
  }

  .service-list li {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .table-row {
    grid-template-columns: 1fr;
  }

  .table-row > span:first-child {
    padding-bottom: 2px;
    font-weight: 750;
  }

  .table-row > span:last-child {
    padding-top: 2px;
  }

  .table-head {
    display: none;
  }
}

@media (max-width: 460px) {
  h1 {
    font-size: 42px;
  }

  .contact-link {
    font-size: 12px;
  }

  .contents ol {
    grid-template-columns: 1fr;
  }

  .key-values > div {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .voice-heading {
    align-items: flex-start;
  }

  .voice-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
  }

  footer {
    flex-direction: column;
    gap: 5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

@media print {
  body {
    background: white;
  }

  .site-header,
  .contents,
  footer {
    display: none;
  }

  main {
    width: 100%;
  }

  .hero {
    padding-top: 0;
  }

  .content-layout {
    display: block;
  }

  .policy > section {
    break-inside: avoid;
  }
}