:root {
  --ink: #162e39;
  --muted: #5e737b;
  --brand: #087e74;
  --light: #edf6f4;
  --line: #d8e3e4;
  --paper: #fff;
  --orange: #e87942;
  font-family:
    system-ui,
    -apple-system,
    'Noto Sans JP',
    'Hiragino Kaku Gothic ProN',
    sans-serif;
  color: var(--ink);
  background: #f5f8f8;
  font-synthesis: none;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
a {
  color: var(--brand);
  text-underline-offset: 4px;
}
a:hover {
  color: #03584e;
}
button,
input,
select {
  font: inherit;
}
button,
a,
input,
select,
summary {
  touch-action: manipulation;
}
button {
  cursor: pointer;
}
header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1160px;
  margin: auto;
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 28px;
  gap: 20px;
}
.logo {
  font-weight: 850;
  font-size: 21px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  display: grid;
  place-items: center;
  width: 35px;
  height: 39px;
  border: 2px solid var(--brand);
  border-radius: 9px;
  color: var(--brand);
  font-size: 26px;
}
nav {
  display: flex;
  gap: 25px;
  font-size: 13px;
}
nav a {
  text-decoration: none;
  color: var(--muted);
}
.wrap {
  max-width: 1160px;
  margin: auto;
  padding: 0 28px;
}
.hero {
  padding: 54px 0 38px;
  display: grid;
  grid-template-columns: 1fr 320px;
  align-items: center;
  gap: 35px;
}
.eyebrow {
  color: var(--brand);
  font-size: 12px;
  letter-spacing: 0.14em;
  font-weight: 750;
}
.hero h1 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.5;
  letter-spacing: 0.035em;
  margin: 14px 0;
}
.hero h1 em {
  font-style: normal;
  color: var(--brand);
}
.hero p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}
.trust {
  display: flex;
  gap: 18px;
  font-size: 12px;
  color: var(--brand);
  margin-top: 22px;
}
.hero-art {
  position: relative;
  background: #e2f0ed;
  border-radius: 50%;
  width: 250px;
  height: 220px;
  margin: auto;
  display: grid;
  place-items: center;
}
.phone {
  transform: rotate(9deg);
  background: white;
  border: 3px solid #315d61;
  border-radius: 21px;
  width: 115px;
  height: 182px;
  box-shadow: 9px 12px 0 #bed8d1;
  padding: 27px 12px;
  text-align: center;
}
.phone::before {
  content: '';
  position: absolute;
  width: 26px;
  height: 4px;
  background: #315d61;
  top: 10px;
  left: 42px;
  border-radius: 5px;
}
.phone span {
  font-size: 11px;
  color: var(--muted);
}
.phone strong {
  display: block;
  font-size: 28px;
  color: var(--brand);
  margin-top: 12px;
}
.phone small {
  font-size: 10px;
}
.spark {
  position: absolute;
  font-size: 28px;
  color: #d58e36;
  right: 18px;
  top: 18px;
}
.notice {
  background: #fff8e8;
  border: 1px solid #ecdfbf;
  color: #71582b;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 12px;
  line-height: 1.8;
  margin-bottom: 26px;
}
.workspace {
  display: grid;
  grid-template-columns: 350px minmax(0, 1fr);
  gap: 25px;
  align-items: start;
}
.panel {
  background: white;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.panel-head {
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 12px;
  align-items: center;
}
.step {
  border-radius: 7px;
  background: var(--light);
  color: var(--brand);
  font-size: 12px;
  padding: 6px 9px;
  font-weight: 750;
}
.panel h2 {
  font-size: 17px;
  margin: 0;
}
.form-body {
  padding: 22px 24px;
}
.field {
  display: block;
  margin-bottom: 18px;
  font-size: 12px;
  font-weight: 650;
}
.field small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
  line-height: 1.7;
  margin-top: 6px;
}
.control {
  margin-top: 8px;
  position: relative;
}
.control input,
.control select {
  width: 100%;
  border: 1px solid #c7d5d9;
  border-radius: 7px;
  background: white;
  color: var(--ink);
  min-height: 46px;
  padding: 11px 13px;
}
.control input.has-unit {
  padding-right: 45px;
}
.unit {
  position: absolute;
  right: 14px;
  top: 15px;
  color: var(--muted);
  font-size: 12px;
}
.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
details {
  border-top: 1px solid var(--line);
  padding-top: 15px;
  margin-top: 9px;
}
summary {
  cursor: pointer;
  font-size: 12px;
  font-weight: 650;
  padding: 3px 0 15px;
  color: var(--brand);
}
.check {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 11px;
  line-height: 1.8;
  margin: 12px 0;
}
.check input {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--brand);
}
.primary {
  width: 100%;
  border: 0;
  border-radius: 8px;
  background: var(--brand);
  color: white;
  font-size: 14px;
  font-weight: 750;
  padding: 16px;
  box-shadow: 0 3px 0 #065e57;
}
.primary:hover {
  background: #066d64;
}
.privacy-note {
  font-size: 10px;
  text-align: center;
  line-height: 1.9;
  color: var(--muted);
  margin: 14px 0 0;
}
.results-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 7px 0 18px;
  gap: 10px;
}
.results-heading h2 {
  font-size: 18px;
  margin: 0;
}
.badge {
  font-size: 10px;
  color: var(--brand);
  background: var(--light);
  padding: 5px 8px;
  border-radius: 4px;
}
.periods {
  display: flex;
  gap: 6px;
  margin: 16px 0;
}
.periods button {
  background: white;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  padding: 9px 17px;
  font-size: 12px;
}
.periods button[aria-pressed='true'] {
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}
.result-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  padding: 22px;
  margin-bottom: 13px;
  position: relative;
}
.result-card.best {
  border: 2px solid var(--brand);
  padding-top: 34px;
}
.best-label {
  position: absolute;
  top: -1px;
  left: -1px;
  color: white;
  background: var(--brand);
  font-size: 10px;
  font-weight: 700;
  padding: 5px 15px;
  border-radius: 10px 0 9px 0;
}
.card-top {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}
.carrier-label {
  font-size: 10px;
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 5px;
}
.result-card h3 {
  font-size: 17px;
  margin: 4px 0 10px;
}
.saving {
  text-align: right;
  white-space: nowrap;
}
.saving span {
  font-size: 11px;
  color: var(--brand);
}
.saving strong {
  font-size: 32px;
  display: block;
  color: var(--brand);
  line-height: 1.25;
  letter-spacing: -0.035em;
}
.saving small {
  font-size: 12px;
}
.negative strong,
.negative span {
  color: #a54830;
}
.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  padding-top: 15px;
  margin-top: 15px;
  gap: 12px;
}
.metric {
  font-size: 10px;
  color: var(--muted);
}
.metric b {
  display: block;
  margin-top: 5px;
  font-size: 14px;
  color: var(--ink);
}
.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 17px;
  font-size: 10px;
  color: var(--muted);
}
.card-foot button {
  border: 0;
  background: var(--light);
  color: var(--brand);
  border-radius: 5px;
  padding: 9px 12px;
  font-size: 11px;
  font-weight: 650;
}
.empty {
  padding: 45px 30px;
  text-align: center;
  background: white;
  border: 1px dashed #b8cdcc;
  border-radius: 12px;
}
.empty-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--light);
  color: var(--brand);
  font-size: 24px;
}
.empty h3 {
  font-size: 17px;
}
.empty p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.9;
}
.small {
  font-size: 11px;
  line-height: 1.9;
  color: var(--muted);
}
.error {
  color: #a63725;
  background: #fff0ed;
  padding: 12px;
  border-radius: 6px;
  font-size: 12px;
  line-height: 1.8;
  margin-bottom: 15px;
}
.error:empty {
  display: none;
}
.ad {
  min-height: 100px;
  display: grid;
  place-items: center;
  border: 1px dashed #cedadb;
  background: #f1f5f5;
  color: #71828a;
  margin: 28px 0;
  border-radius: 8px;
  text-align: center;
  font-size: 10px;
}
.ad span {
  display: block;
  letter-spacing: 0.16em;
  margin-bottom: 7px;
}
.section {
  margin: 45px 0;
}
.section h2 {
  font-size: 22px;
  margin: 0 0 20px;
}
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 17px;
}
.feature {
  background: white;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 23px;
}
.feature i {
  font-style: normal;
  color: var(--brand);
  font-size: 24px;
}
.feature h3 {
  font-size: 14px;
}
.feature p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.9;
}
.data-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.data-link {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 13px;
  background: white;
  text-decoration: none;
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  gap: 6px;
}
.data-link small {
  font-size: 9px;
  color: var(--muted);
}
footer {
  background: white;
  border-top: 1px solid var(--line);
  margin-top: 50px;
  padding: 30px 0;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  font-size: 11px;
  color: var(--muted);
}
.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--muted);
  font-size: 11px;
}
.legal {
  max-width: 780px;
  margin: 45px auto;
  line-height: 2;
  padding: 0 24px;
}
.legal h1 {
  font-size: 29px;
}
.legal h2 {
  font-size: 19px;
  margin-top: 30px;
}
.legal p,
.legal li {
  font-size: 14px;
}
.table-wrap {
  overflow-x: auto;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 12px;
  white-space: nowrap;
}
td,
th {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
th {
  background: var(--light);
}
.chart {
  width: 100%;
  height: auto;
  display: block;
}
.chart text {
  font-size: 11px;
  fill: var(--muted);
}
.chart line {
  stroke: var(--line);
}
.chart path {
  fill: none;
  stroke-width: 3;
}
.chart .stay {
  stroke: #8e9da4;
}
.chart .switch {
  stroke: var(--brand);
}
.legend {
  display: flex;
  gap: 20px;
  font-size: 11px;
  color: var(--muted);
}
.legend span::before {
  content: '';
  display: inline-block;
  width: 15px;
  height: 3px;
  background: #8e9da4;
  vertical-align: middle;
  margin-right: 6px;
}
.legend span + span::before {
  background: var(--brand);
}
:focus-visible {
  outline: 3px solid #e4a94b;
  outline-offset: 3px;
}
#results {
  scroll-margin-top: 20px;
}
#breakdown {
  margin-top: 25px;
}
.skip {
  position: absolute;
  left: 10px;
  top: -60px;
  background: white;
  padding: 12px;
  z-index: 5;
}
.skip:focus {
  top: 10px;
}
.horizon-note {
  font-size: 11px;
  color: var(--muted);
}
[hidden] {
  display: none !important;
}
@media (max-width: 800px) {
  .workspace {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 18px;
  }
  .wrap {
    padding: 0 20px;
  }
  .hero {
    grid-template-columns: 1fr 220px;
  }
  .hero-art {
    transform: scale(0.85);
  }
  .form-body,
  .panel-head {
    padding: 19px;
  }
  .card-top {
    display: block;
  }
  .saving {
    text-align: left;
    margin: 12px 0;
  }
  .metrics {
    gap: 7px;
  }
  .data-list {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 640px) {
  .header-inner {
    min-height: 67px;
    padding: 12px 18px;
  }
  .logo {
    font-size: 17px;
  }
  .logo-icon {
    width: 28px;
    height: 32px;
    font-size: 21px;
  }
  nav {
    gap: 13px;
    font-size: 10px;
  }
  nav a:last-child {
    display: none;
  }
  .wrap {
    padding: 0 17px;
  }
  .hero {
    padding: 32px 0 25px;
    display: block;
  }
  .hero h1 {
    font-size: 31px;
  }
  .hero-art {
    display: none;
  }
  .hero p {
    font-size: 12px;
  }
  .trust {
    gap: 12px;
    font-size: 10px;
  }
  .workspace {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .notice {
    font-size: 10px;
    padding: 11px 13px;
  }
  .form-body,
  .panel-head {
    padding: 20px;
  }
  .two {
    gap: 14px;
  }
  .field {
    font-size: 12px;
  }
  .check {
    font-size: 12px;
  }
  .primary {
    position: relative;
    min-height: 52px;
  }
  .results-heading {
    margin-top: 0;
  }
  .card-top {
    display: flex;
    align-items: flex-start;
    gap: 8px;
  }
  .result-card {
    padding: 17px;
  }
  .result-card h3 {
    font-size: 14px;
  }
  .saving {
    margin: 0;
    text-align: right;
  }
  .saving strong {
    font-size: 28px;
  }
  .saving span {
    font-size: 10px;
  }
  .metrics {
    gap: 10px;
  }
  .metric b {
    font-size: 13px;
  }
  .features {
    grid-template-columns: 1fr;
  }
  .feature {
    padding: 20px;
  }
  .feature h3 {
    margin-top: 8px;
  }
  .feature p {
    margin-bottom: 0;
  }
  .section {
    margin: 34px 0;
  }
  .section h2 {
    font-size: 19px;
  }
  .data-list {
    grid-template-columns: 1fr 1fr;
  }
  .data-link {
    font-size: 11px;
  }
  .footer-row {
    display: block;
  }
  .footer-links {
    margin: 20px 0;
    gap: 12px;
  }
  .periods button {
    flex: 1;
  }
  .small {
    font-size: 10px;
  }
  .legal {
    margin: 30px auto;
  }
  .legal h1 {
    font-size: 24px;
  }
  .card-foot {
    flex-wrap: wrap;
  }
}
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}
@media print {
  header,
  form,
  .ad,
  footer,
  .periods,
  .primary {
    display: none;
  }
  .workspace {
    display: block;
  }
  .result-card {
    break-inside: avoid;
  }
  .wrap {
    max-width: 100%;
  }
}
.saving strong small {
  display: none;
}
.saving strong::first-letter {
  font-size: 0.7em;
}
@media (max-width: 380px) {
  .card-top { display: block; }
  .saving { text-align: left; margin-top: 14px; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .metric:last-child { grid-column: 1 / -1; }
}