:root {
  --ink: #102c3c;
  --ink-soft: #416272;
  --blue: #126b9b;
  --blue-dark: #0e5278;
  --sky: #e7f4fb;
  --sky-soft: #f7fbff;
  --white: #ffffff;
  --warm: #f3a65a;
  --line: #d7e8f1;
  --focus: #075e91;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --shell: min(1180px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  right: 0;
  left: 0;
}

.header-inner {
  display: flex;
  min-height: 96px;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 13px;
  text-decoration: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text strong {
  font-size: 15px;
  letter-spacing: .045em;
}

.brand-text small {
  margin-top: 6px;
  color: #527283;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .12em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 42px;
}

.nav a {
  position: relative;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: #355767;
  font-size: 14px;
  text-decoration: none;
}

.nav a::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 1px;
  background: var(--blue);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.nav a:hover::after,
.nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 750px;
  background:
    radial-gradient(circle at 92% 9%, rgba(188, 226, 245, .72), transparent 29%),
    linear-gradient(115deg, var(--sky-soft) 0%, #fff 52%, #f0f8fc 100%);
}

.hero::before {
  position: absolute;
  top: 0;
  right: 0;
  width: 34vw;
  height: 100%;
  border-left: 1px solid rgba(112, 163, 190, .18);
  content: "";
  transform: skewX(-8deg) translateX(15%);
}

.hero-grid {
  position: relative;
  display: grid;
  min-height: 750px;
  align-items: center;
  grid-template-columns: .93fr 1.07fr;
  gap: 48px;
  padding-top: 100px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding: 72px 0 64px;
}

.intro,
.section-heading > p,
.value-kicker {
  margin: 0 0 24px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .12em;
}

.hero h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(42px, 5.25vw, 68px);
  font-weight: 650;
  letter-spacing: -.055em;
  line-height: 1.24;
}

.hero-lede {
  max-width: 580px;
  margin: 30px 0 28px;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.9;
  text-wrap: pretty;
}

.text-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 12px;
  color: var(--blue-dark);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
}

.text-link svg {
  width: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
  transition: transform 180ms ease;
}

.text-link:hover svg {
  transform: translateX(4px);
}

.signal-panel {
  position: relative;
  min-width: 0;
}

.signal-map {
  display: block;
  width: min(100%, 620px);
  margin-inline: auto;
}

.signal-pulse {
  transform-box: fill-box;
  transform-origin: center;
  animation: breathe 3.4s ease-in-out infinite;
}

.signal-note {
  position: absolute;
  right: 4%;
  bottom: 12%;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: #446b80;
  font-size: 13px;
  letter-spacing: .08em;
}

.signal-note span {
  width: 26px;
  height: 1px;
  background: var(--warm);
}

.section {
  padding: 120px 0;
}

.section-grid {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 10vw;
}

.section-heading h2,
.value-panel h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(34px, 4vw, 50px);
  font-weight: 620;
  letter-spacing: -.045em;
  line-height: 1.32;
  text-wrap: balance;
}

.section-body {
  max-width: 650px;
  padding-top: 5px;
  color: var(--ink-soft);
  text-wrap: pretty;
}

.section-body p {
  margin: 0;
}

.section-body .lead {
  margin-bottom: 26px;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.9;
}

.services {
  background: var(--sky-soft);
  border-block: 1px solid #e4f0f6;
}

.section-heading.horizontal {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 48px;
}

.section-note {
  max-width: 430px;
  margin: 0 0 5px;
  color: var(--ink-soft);
  text-wrap: pretty;
}

.service-list {
  display: grid;
  margin-top: 72px;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
}

.service-list article {
  min-width: 0;
  padding: 46px 46px 22px 0;
}

.service-list article + article {
  padding-left: 46px;
  border-left: 1px solid var(--line);
}

.service-list svg {
  width: 30px;
  height: 30px;
  margin-bottom: 28px;
  fill: none;
  stroke: var(--blue);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.service-list h3 {
  margin: 0 0 14px;
  font-size: 21px;
  font-weight: 620;
  letter-spacing: -.02em;
}

.service-list p {
  margin: 0;
  color: var(--ink-soft);
  text-wrap: pretty;
}

.license {
  background: var(--white);
}

.license-ledger {
  display: grid;
  margin-top: 72px;
  border-block: 1px solid var(--line);
  grid-template-columns: .92fr 1.08fr;
}

.license-identity,
.license-scope {
  padding-block: 52px;
}

.license-identity {
  padding-right: 64px;
  border-right: 1px solid var(--line);
}

.license-identity > p {
  margin: 0 0 14px;
  color: var(--ink-soft);
  font-size: 14px;
}

.license-identity strong {
  display: block;
  color: var(--ink);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 650;
  letter-spacing: -.025em;
  line-height: 1.25;
}

.license-identity a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 600;
  text-underline-offset: 5px;
}

.license-identity a svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.license-scope {
  padding-left: 64px;
}

.license-scope h3 {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .1em;
}

.license-scope ul {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 36px;
}

.license-scope li {
  position: relative;
  padding: 14px 0 14px 20px;
  border-bottom: 1px solid #e5eff4;
  color: var(--ink);
}

.license-scope li::before {
  position: absolute;
  top: 24px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--warm);
  border-radius: 50%;
  content: "";
}

.values {
  padding-block: 112px;
}

.value-panel {
  display: grid;
  overflow: hidden;
  min-height: 440px;
  padding: 78px;
  background: var(--ink);
  color: var(--white);
  grid-template-columns: 1fr .9fr;
  gap: 96px;
}

.value-panel h2 {
  color: var(--white);
}

.value-kicker {
  color: #87bdd8;
}

.value-panel dl {
  margin: 0;
  align-self: center;
}

.value-panel dl div {
  display: grid;
  padding: 23px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
  grid-template-columns: 88px 1fr;
  gap: 24px;
}

.value-panel dt {
  color: #9bc8de;
  font-size: 15px;
  font-weight: 600;
}

.value-panel dd {
  margin: 0;
  color: rgba(255, 255, 255, .78);
  text-wrap: pretty;
}

.site-footer {
  padding: 54px 0;
  background: #f5fafc;
  border-top: 1px solid #e3eef4;
}

.footer-inner {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
}

.footer-inner strong {
  font-size: 15px;
  letter-spacing: .04em;
}

.footer-inner p {
  margin: 8px 0 0;
  color: #526f7d;
  font-size: 13px;
}

.footer-inner .copyright {
  margin: 0;
  text-align: right;
}

.footer-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 20px;
  flex-wrap: wrap;
}

.filing-record {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: #456978;
  font-size: 13px;
  white-space: nowrap;
  text-underline-offset: 5px;
}

.filing-record:hover {
  color: var(--blue-dark);
}

@keyframes breathe {
  0%, 100% { opacity: .9; transform: scale(1); }
  50% { opacity: .55; transform: scale(1.35); }
}

@media (max-width: 900px) {
  :root {
    --shell: min(100% - 40px, 720px);
  }

  .nav {
    gap: 24px;
  }

  .hero,
  .hero-grid {
    min-height: auto;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 0;
    padding-top: 118px;
  }

  .hero-copy {
    padding: 68px 0 0;
  }

  .hero-lede {
    max-width: 620px;
  }

  .signal-panel {
    width: min(100%, 620px);
    margin: -32px auto 18px;
  }

  .section {
    padding: 88px 0;
  }

  .section-grid,
  .license-ledger,
  .value-panel {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .license-identity {
    padding-right: 0;
    padding-bottom: 6px;
    border-right: 0;
  }

  .license-scope {
    padding-top: 0;
    padding-left: 0;
  }

  .value-panel {
    padding: 58px;
  }

  .service-list article {
    padding-right: 28px;
  }

  .service-list article + article {
    padding-left: 28px;
  }
}

@media (max-width: 640px) {
  :root {
    --shell: calc(100% - 40px);
  }

  .header-inner {
    min-height: 80px;
  }

  .brand-text small,
  .nav {
    display: none;
  }

  .brand-text strong {
    max-width: 16em;
    font-size: 14px;
    letter-spacing: .02em;
  }

  .hero-grid {
    padding-top: 86px;
  }

  .hero-copy {
    padding-top: 66px;
  }

  .hero h1 {
    font-size: clamp(36px, 10.5vw, 42px);
    letter-spacing: -.05em;
    line-height: 1.28;
  }

  .hero-lede {
    margin-top: 24px;
    font-size: 17px;
  }

  .signal-panel {
    width: 100%;
    margin: -8% auto 4px;
  }

  .signal-note {
    right: 10%;
    bottom: 10%;
    font-size: 12px;
  }

  .section {
    padding: 60px 0;
  }

  .section-grid {
    gap: 30px;
  }

  .section-body .lead {
    margin-bottom: 22px;
    font-size: 18px;
    line-height: 1.8;
  }

  .section-heading > p,
  .intro,
  .value-kicker {
    margin-bottom: 17px;
  }

  .section-heading.horizontal {
    display: block;
  }

  .section-note {
    margin-top: 26px;
  }

  .service-list {
    margin-top: 40px;
    grid-template-columns: 1fr;
  }

  .service-list article {
    padding: 30px 0;
  }

  .service-list article + article {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .service-list svg {
    margin-bottom: 18px;
  }

  .license-ledger {
    margin-top: 40px;
    gap: 30px;
  }

  .license-identity {
    padding-top: 36px;
  }

  .license-scope ul {
    grid-template-columns: 1fr;
  }

  .license-scope {
    padding-bottom: 36px;
  }

  .values {
    padding: 0;
  }

  .value-panel {
    width: 100%;
    padding: 60px 20px;
    gap: 40px;
  }

  .value-panel > * {
    width: calc(100% - 40px);
    margin-inline: auto;
  }

  .value-panel dl div {
    grid-template-columns: 62px 1fr;
    gap: 14px;
  }

  .footer-inner {
    display: block;
  }

  .footer-inner .copyright {
    margin: 0;
    text-align: left;
  }

  .footer-meta {
    justify-content: flex-start;
    gap: 16px;
    margin-top: 20px;
    flex-wrap: nowrap;
  }

  .copyright-company {
    display: none;
  }

  .site-footer {
    padding: 44px 0 calc(44px + env(safe-area-inset-bottom));
  }
}

@media (max-width: 360px) {
  :root {
    --shell: calc(100% - 32px);
  }

  .hero h1 {
    font-size: 36px;
  }

  .value-panel {
    padding-right: 16px;
    padding-left: 16px;
  }

  .value-panel > * {
    width: 100%;
  }

  .value-panel h2 {
    font-size: 30px;
  }

  .value-panel dl div {
    grid-template-columns: 52px 1fr;
    gap: 12px;
  }
}

@media (orientation: landscape) and (max-height: 500px) and (min-width: 480px) {
  .header-inner {
    min-height: 72px;
  }

  .nav {
    gap: 20px;
  }

  .hero,
  .hero-grid {
    min-height: auto;
  }

  .hero-grid {
    display: block;
    padding-top: 72px;
  }

  .hero-copy {
    max-width: 620px;
    padding: 32px 0 40px;
  }

  .hero .intro {
    margin-bottom: 12px;
  }

  .hero h1 {
    font-size: 36px;
    line-height: 1.2;
  }

  .hero-lede {
    margin: 18px 0 14px;
    font-size: 16px;
    line-height: 1.7;
  }

  .signal-panel {
    display: none;
  }

  .section {
    padding: 64px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}