:root {
  color-scheme: light;
  --paper: #ffffff;
  --canvas: #f3f6f4;
  --ink: #17221f;
  --muted: #63716b;
  --line: #d4ddd8;
  --line-strong: #aabbb2;
  --forest: #164c3d;
  --forest-dark: #102f27;
  --mint: #dcece5;
  --coral: #c95a47;
  --sun: #d7ad4a;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

a { color: inherit; }

.wrap { width: min(calc(100% - 72px), 1160px); margin: 0 auto; }

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.header-content {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 720;
  letter-spacing: 0;
  text-decoration: none;
}

.brand-mark {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  border: 1.5px solid var(--forest);
  border-radius: 50%;
}

.brand-mark i { display: block; width: 2px; border-radius: 8px; background: var(--forest); }
.brand-mark i:nth-child(1) { height: 7px; }
.brand-mark i:nth-child(2) { height: 12px; }
.brand-mark i:nth-child(3) { height: 5px; }

nav { display: flex; flex-wrap: wrap; justify-content: end; gap: 24px; }
nav a {
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  text-underline-offset: 5px;
  text-decoration-thickness: 1px;
}
nav a:hover { color: var(--forest); text-decoration: underline; }

.hero { background: var(--paper); border-bottom: 1px solid var(--line); }
.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(390px, .98fr);
  gap: 86px;
  align-items: center;
  padding: 98px 0 92px;
}

.domain, .section-index, .boundary-label {
  margin: 0;
  color: var(--forest);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0;
}

h1, h2, h3, p, figure { margin: 0; }

h1 {
  max-width: 620px;
  margin: 15px 0 25px;
  font-size: 64px;
  font-weight: 760;
  letter-spacing: 0;
  line-height: 1.12;
}

.hero-intro {
  max-width: 600px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.85;
}

.hero-assurance {
  max-width: 540px;
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--forest);
  font-size: 14px;
  font-weight: 660;
}

.capture-map {
  margin: 0;
  padding: 23px 24px 19px;
  background: var(--canvas);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.map-topline { display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: 12px; }

.waveform {
  height: 164px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 7px;
  margin: 16px 0 19px;
  padding: 0 7px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.waveform i { display: block; width: 100%; max-width: 10px; border-radius: 8px; background: var(--forest); }
.waveform i:nth-child(1), .waveform i:nth-child(15) { height: 22px; background: var(--line-strong); }
.waveform i:nth-child(2), .waveform i:nth-child(14) { height: 42px; background: var(--mint); }
.waveform i:nth-child(3), .waveform i:nth-child(13) { height: 65px; }
.waveform i:nth-child(4), .waveform i:nth-child(12) { height: 38px; background: var(--forest); }
.waveform i:nth-child(5), .waveform i:nth-child(11) { height: 86px; background: var(--coral); }
.waveform i:nth-child(6), .waveform i:nth-child(10) { height: 112px; }
.waveform i:nth-child(7), .waveform i:nth-child(9) { height: 74px; background: var(--sun); }
.waveform i:nth-child(8) { height: 134px; background: var(--coral); }

.flow-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 0; padding: 0; list-style: none; }
.flow-list li { min-width: 0; padding-top: 11px; border-top: 2px solid var(--forest); }
.flow-list span { display: block; color: var(--muted); font-size: 11px; }
.flow-list strong { display: block; margin-top: 3px; font-size: 13px; line-height: 1.35; }
.capture-map figcaption { margin-top: 18px; color: var(--muted); font-size: 12px; }

.capabilities { background: var(--canvas); }
.capabilities-layout { display: grid; grid-template-columns: minmax(260px, .82fr) minmax(0, 1.18fr); gap: 100px; padding: 110px 0; }
.section-intro h2, .boundary-header h2, .review-heading h2, .note-layout h2 { margin-top: 9px; font-size: 42px; font-weight: 730; letter-spacing: 0; line-height: 1.18; }
.section-intro > p:last-child { max-width: 320px; margin-top: 24px; color: var(--muted); font-size: 15px; }

.capability-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line-strong); }
.capability-list li { display: grid; grid-template-columns: 58px minmax(0, 1fr); gap: 22px; padding: 24px 0 25px; border-bottom: 1px solid var(--line); }
.capability-list > li > span { color: var(--coral); font-size: 13px; font-weight: 740; }
.capability-list h3, .review-row h3 { font-size: 19px; font-weight: 720; line-height: 1.35; }
.capability-list p, .review-row p { margin-top: 7px; color: var(--muted); font-size: 15px; line-height: 1.75; }

.boundary-section { padding: 100px 0 0; background: var(--paper); }
.boundary-header { padding-bottom: 38px; }
.boundary-grid { display: grid; grid-template-columns: 1fr 1fr; }
.boundary-column { min-width: 0; min-height: 390px; padding: 55px max(32px, calc((100vw - 1160px) / 2)); }
.boundary-column h3 { max-width: 430px; margin: 9px 0 32px; font-size: 36px; font-weight: 730; line-height: 1.22; letter-spacing: 0; }
.local-boundary { background: var(--mint); padding-left: max(36px, calc((100vw - 1160px) / 2)); }
.disabled-boundary { background: var(--forest-dark); color: var(--paper); padding-right: max(36px, calc((100vw - 1160px) / 2)); }
.disabled-boundary .boundary-label { color: var(--sun); }
.disabled-boundary p:last-child { max-width: 430px; color: #d4e3dc; }
.local-boundary dl { max-width: 420px; margin: 0; border-top: 1px solid rgba(23, 34, 31, .22); }
.local-boundary dl div { display: flex; justify-content: space-between; gap: 22px; padding: 12px 0; border-bottom: 1px solid rgba(23, 34, 31, .22); }
.local-boundary dt { color: #476359; }
.local-boundary dd { margin: 0; font-weight: 700; text-align: right; }

.review-section { background: var(--paper); }
.review-layout { display: grid; grid-template-columns: minmax(190px, .58fr) minmax(0, 1.42fr); gap: 100px; padding: 108px 0; }
.review-detail { border-top: 1px solid var(--line-strong); }
.review-row { padding: 25px 0 29px; border-bottom: 1px solid var(--line); }
.review-row p strong { color: var(--forest); font-weight: 720; overflow-wrap: anywhere; }
.no-service-row h3 { color: var(--coral); }

.disclosure-section { background: var(--forest); color: var(--paper); }
.disclosure-layout { display: grid; grid-template-columns: minmax(240px, .68fr) minmax(0, 1.32fr); gap: 100px; padding: 100px 0; }
.disclosure-intro h2 { margin-top: 9px; font-size: 42px; font-weight: 730; letter-spacing: 0; line-height: 1.18; }
.disclosure-intro .section-index { color: var(--sun); }
.disclosure-intro > p:last-child { max-width: 330px; margin-top: 22px; color: #c4d6cd; font-size: 15px; }
.disclosure-list { border-top: 1px solid rgba(255, 255, 255, .38); }
.disclosure-list details { border-bottom: 1px solid rgba(255, 255, 255, .28); }
.disclosure-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 23px 0;
  color: var(--paper);
  cursor: pointer;
  font-size: 19px;
  font-weight: 710;
  line-height: 1.45;
  list-style: none;
}
.disclosure-list summary::-webkit-details-marker { display: none; }
.disclosure-list summary::after {
  content: "+";
  flex: 0 0 auto;
  color: var(--sun);
  font-size: 28px;
  font-weight: 360;
  line-height: 1;
}
.disclosure-list details[open] summary::after { content: "-"; }
.disclosure-list details > p { max-width: 640px; margin: -4px 44px 25px 0; color: #d2e1d9; font-size: 15px; line-height: 1.8; }
.disclosure-list summary:focus-visible { outline: 2px solid var(--sun); outline-offset: -4px; }

.review-note { background: var(--canvas); border-top: 1px solid var(--line); }
.note-layout { display: grid; grid-template-columns: minmax(190px, .58fr) minmax(0, 1.42fr); gap: 100px; padding: 76px 0; }
.note-layout ol { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; counter-reset: check; }
.note-layout li { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 12px; color: var(--muted); font-size: 15px; }
.note-layout li::before { content: counter(check, decimal-leading-zero); counter-increment: check; color: var(--forest); font-size: 12px; font-weight: 760; }

.site-footer { background: var(--paper); border-top: 1px solid var(--line); }
.footer-content { display: grid; grid-template-columns: 1fr 1fr auto; gap: 20px; padding: 24px 0; color: var(--muted); font-size: 13px; }
.footer-content a { color: var(--forest); text-decoration-thickness: 1px; text-underline-offset: 4px; }

a:focus-visible { outline: 2px solid var(--coral); outline-offset: 4px; }

@media (max-width: 880px) {
  .hero-layout { grid-template-columns: minmax(0, 1fr); gap: 48px; padding: 74px 0; }
  .capture-map { max-width: 640px; }
  .capabilities-layout, .review-layout, .disclosure-layout, .note-layout { grid-template-columns: minmax(0, 1fr); gap: 38px; }
  .section-intro > p:last-child { max-width: 540px; }
  .boundary-column { padding-left: 36px; padding-right: 36px; }
}

@media (max-width: 700px) {
  .wrap { width: min(calc(100% - 32px), 1160px); }
  .header-content { min-height: 64px; gap: 14px; }
  nav { gap: 14px; }
  nav a { font-size: 12px; }
  .brand { font-size: 14px; }
  .hero-layout { padding: 60px 0 58px; gap: 38px; }
  h1 { margin: 12px 0 20px; font-size: 42px; }
  .hero-intro { font-size: 16px; line-height: 1.78; }
  .hero-assurance { margin-top: 23px; font-size: 13px; }
  .capture-map { padding: 18px 16px 16px; }
  .waveform { height: 128px; gap: 5px; padding: 0 3px; }
  .flow-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 18px; }
  .flow-list li { padding-top: 8px; }
  .capabilities-layout { gap: 34px; padding: 72px 0; }
  .section-intro h2, .boundary-header h2, .review-heading h2, .note-layout h2 { font-size: 31px; }
  .capability-list li { grid-template-columns: 43px minmax(0, 1fr); gap: 14px; padding: 20px 0; }
  .capability-list h3, .review-row h3 { font-size: 18px; }
  .boundary-section { padding-top: 70px; }
  .boundary-header { padding-bottom: 30px; }
  .boundary-grid { grid-template-columns: minmax(0, 1fr); }
  .boundary-column { min-height: 0; padding: 45px 16px; }
  .boundary-column h3 { font-size: 30px; }
  .local-boundary dl div { align-items: start; flex-direction: column; gap: 1px; }
  .local-boundary dd { text-align: left; }
  .review-layout { gap: 33px; padding: 72px 0; }
  .disclosure-layout { gap: 30px; padding: 72px 0; }
  .disclosure-intro h2 { font-size: 31px; }
  .disclosure-intro > p:last-child { max-width: 540px; }
  .disclosure-list summary { gap: 16px; padding: 20px 0; font-size: 18px; }
  .disclosure-list details > p { margin: -2px 0 22px; font-size: 15px; }
  .note-layout { gap: 33px; padding: 60px 0; }
  .footer-content { grid-template-columns: minmax(0, 1fr); gap: 5px; padding: 21px 0; }
}

@media (max-width: 390px) {
  .header-content { align-items: start; flex-direction: column; padding: 16px 0; }
  nav { justify-content: start; }
  h1 { font-size: 38px; }
  .waveform { height: 110px; }
  .waveform i { max-width: 8px; }
  .boundary-column h3 { font-size: 28px; }
}

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