:root {
  --navy: #102a43;
  --navy-deep: #071b2d;
  --teal: #0c7c74;
  --teal-dark: #075c56;
  --teal-pale: #e4f4f1;
  --paper: #fbfcfd;
  --mist: #eef4f6;
  --ink: #152033;
  --muted: #526274;
  --line: #d8e3e8;
  --gold: #b68c50;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(13, 39, 58, 0.12);
  --serif: "Noto Serif SC", "Songti SC", SimSun, serif;
  --sans: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid #ffbf5b;
  outline-offset: 4px;
}

button {
  font: inherit;
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 16px;
  z-index: 20;
  padding: 8px 14px;
  color: var(--navy-deep);
  background: #ffda88;
  border-radius: 6px;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid rgba(216, 227, 232, 0.85);
  background: rgba(251, 252, 253, 0.95);
}

.nav-shell,
.container {
  width: min(1160px, calc(100% - 48px));
  margin: 0 auto;
}

.nav-shell {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.09em;
  white-space: nowrap;
}

.brand::before {
  content: "";
  width: 28px;
  height: 28px;
  border: 7px solid var(--teal);
  border-radius: 50%;
  box-shadow: inset 0 0 0 3px var(--white);
}

.brand span {
  color: var(--teal);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 23px;
  color: var(--muted);
  font-size: 14px;
}

.site-nav a {
  position: relative;
  padding: 28px 0 24px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 19px;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--teal);
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--navy);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
  padding: 8px 10px;
  color: var(--navy);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.hero {
  overflow: hidden;
  position: relative;
  background:
    radial-gradient(circle at 88% 7%, rgba(21, 142, 130, 0.18), transparent 22rem),
    linear-gradient(118deg, #f8fbfc 0%, #f4f9f8 46%, #e5f3f1 100%);
}

.hero::after {
  content: "";
  position: absolute;
  right: -16vw;
  bottom: -21vw;
  width: 51vw;
  aspect-ratio: 1;
  border: 1px solid rgba(12, 124, 116, 0.15);
  border-radius: 50%;
  box-shadow:
    0 0 0 38px rgba(12, 124, 116, 0.045),
    0 0 0 96px rgba(12, 124, 116, 0.03);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.72fr);
  align-items: center;
  gap: 84px;
  min-height: 610px;
  padding: 96px 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  color: var(--navy);
  font-family: var(--serif);
  font-weight: 700;
}

h1 {
  max-width: 800px;
  margin-bottom: 25px;
  font-size: clamp(41px, 6.2vw, 73px);
  line-height: 1.2;
  letter-spacing: 0.035em;
}

.hero-copy {
  max-width: 610px;
  margin-bottom: 15px;
  color: var(--muted);
  font-size: 18px;
}

.operator {
  margin-bottom: 31px;
  color: #687b89;
  font-size: 14px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 23px;
  border: 1px solid transparent;
  border-radius: 5px;
  font-size: 15px;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--white);
  background: var(--teal);
  box-shadow: 0 10px 20px rgba(12, 124, 116, 0.2);
}

.button-primary:hover {
  background: var(--teal-dark);
  box-shadow: 0 14px 24px rgba(12, 124, 116, 0.24);
}

.button-secondary {
  color: var(--navy);
  border-color: #aebfc8;
  background: rgba(255, 255, 255, 0.68);
}

.button-secondary:hover {
  background: var(--white);
}

.assurance-panel {
  position: relative;
  overflow: hidden;
  padding: 31px;
  color: #dfecee;
  background: var(--navy);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
}

.assurance-panel::before {
  content: "";
  position: absolute;
  top: -90px;
  right: -70px;
  width: 235px;
  height: 235px;
  border: 1px solid rgba(108, 208, 197, 0.32);
  border-radius: 50%;
  box-shadow: 0 0 0 34px rgba(108, 208, 197, 0.06);
}

.panel-number {
  position: relative;
  display: block;
  margin-bottom: 16px;
  color: #78d4ca;
  font-family: var(--serif);
  font-size: 45px;
  font-weight: 700;
  line-height: 1;
}

.assurance-panel h2 {
  position: relative;
  margin-bottom: 17px;
  color: var(--white);
  font-family: var(--serif);
  font-size: 25px;
  line-height: 1.4;
}

.assurance-panel p {
  position: relative;
  margin-bottom: 22px;
  color: #c5d6d9;
  font-size: 15px;
}

.mini-list {
  position: relative;
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

.mini-list li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mini-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #78d4ca;
}

.section {
  padding: 108px 0;
}

.section-pale {
  background: var(--mist);
}

.section-heading {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 50px;
  align-items: end;
  margin-bottom: 48px;
}

.section-label {
  display: block;
  margin-bottom: 14px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.13em;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.32;
  letter-spacing: 0.04em;
}

.section-heading p {
  max-width: 600px;
  margin: 0;
  color: var(--muted);
}

.service-list {
  border-top: 1px solid var(--line);
}

.service-row {
  display: grid;
  grid-template-columns: 0.28fr 0.64fr 1.2fr;
  gap: 28px;
  align-items: baseline;
  padding: 27px 0;
  border-bottom: 1px solid var(--line);
}

.service-index {
  color: var(--gold);
  font-family: var(--serif);
  font-size: 18px;
}

.service-row h3 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.03em;
}

.service-row p {
  margin: 0;
  color: var(--muted);
}

.process {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.process-step {
  position: relative;
  min-height: 260px;
  padding: 31px 28px 28px;
  background: var(--white);
  border-top: 3px solid var(--teal);
  box-shadow: 0 13px 30px rgba(23, 50, 67, 0.07);
}

.process-step:nth-child(2) {
  border-top-color: var(--gold);
}

.process-step:nth-child(3) {
  border-top-color: var(--navy);
}

.process-step span {
  display: block;
  margin-bottom: 48px;
  color: #9cb0b9;
  font-family: var(--serif);
  font-size: 17px;
}

.process-step h3 {
  margin-bottom: 12px;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 24px;
}

.process-step p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
}

.commitment {
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  gap: 72px;
  align-items: center;
}

.commitment-copy p {
  max-width: 610px;
  color: var(--muted);
}

.commitment-list {
  display: grid;
  gap: 19px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

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

.commitment-list li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 11px;
  height: 11px;
  border: 2px solid var(--teal);
  border-radius: 50%;
}

.principle-card {
  padding: 38px;
  color: #dcebed;
  background: var(--navy-deep);
}

.principle-card h3 {
  max-width: 10em;
  margin-bottom: 37px;
  color: var(--white);
  font-family: var(--serif);
  font-size: 34px;
  line-height: 1.38;
  letter-spacing: 0.04em;
}

.principle-card dl {
  margin: 0;
}

.principle-card dt {
  margin-top: 20px;
  color: #78d4ca;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.principle-card dt:first-child {
  margin-top: 0;
}

.principle-card dd {
  margin: 6px 0 0;
  color: #c5d6d9;
  font-size: 14px;
}

.page-hero {
  padding: 94px 0 71px;
  background:
    linear-gradient(140deg, #f5faf9 0%, #e8f4f2 100%);
  border-bottom: 1px solid #d5e5e3;
}

.page-hero .container {
  max-width: 900px;
  margin-left: max(calc((100% - 1160px) / 2), 24px);
}

.page-hero h1 {
  margin-bottom: 20px;
  font-size: clamp(40px, 6vw, 64px);
}

.page-hero p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.article {
  width: min(820px, calc(100% - 48px));
  margin: 0 auto;
  padding: 84px 0 108px;
}

.article .effective-date {
  margin-bottom: 45px;
  color: #687b89;
  font-size: 14px;
}

.article h2 {
  margin: 51px 0 16px;
  font-size: 28px;
}

.article h2:first-of-type {
  margin-top: 0;
}

.article p,
.article li {
  color: #394d5c;
}

.article ul {
  padding-left: 1.3em;
}

.article .callout {
  margin: 37px 0;
  padding: 24px 26px;
  color: #264b55;
  background: var(--teal-pale);
  border-left: 4px solid var(--teal);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.7fr);
  gap: 58px;
  align-items: start;
}

.contact-grid h2 {
  margin-bottom: 19px;
}

.contact-grid p {
  max-width: 590px;
  color: var(--muted);
}

.contact-card {
  padding: 34px;
  color: var(--white);
  background: var(--navy);
  box-shadow: var(--shadow);
}

.contact-card span {
  display: block;
  margin-bottom: 11px;
  color: #80d6cd;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.contact-card a {
  display: inline-block;
  margin-bottom: 25px;
  color: var(--white);
  border-bottom: 1px solid #80d6cd;
  font-size: clamp(19px, 2vw, 24px);
  overflow-wrap: anywhere;
}

.contact-card p {
  margin: 0;
  color: #c7d9dc;
  font-size: 14px;
}

.site-footer {
  color: #cad7d9;
  background: var(--navy-deep);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr 0.8fr;
  gap: 38px;
  padding: 58px 0 35px;
}

.footer-brand {
  margin-bottom: 14px;
  color: var(--white);
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.footer-note,
.footer-grid p {
  margin: 0;
  color: #b2c3c8;
  font-size: 13px;
}

.footer-title {
  margin-bottom: 13px;
  color: #77d2c9;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.11em;
}

.footer-links {
  display: grid;
  gap: 7px;
  font-size: 13px;
}

.footer-links a:hover,
.footer-email:hover {
  color: var(--white);
}

.footer-email {
  overflow-wrap: anywhere;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0 26px;
  border-top: 1px solid rgba(202, 215, 217, 0.18);
  color: #93a9af;
  font-size: 12px;
}

@media (max-width: 820px) {
  .nav-shell,
  .container {
    width: min(100% - 36px, 1160px);
  }

  .nav-shell {
    min-height: 72px;
  }

  .menu-button {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    right: 0;
    left: 0;
    display: none;
    padding: 12px 18px 18px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 25px rgba(14, 37, 54, 0.08);
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    padding: 9px 0;
  }

  .site-nav a::after {
    display: none;
  }

  .hero-grid,
  .commitment,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .hero-grid {
    min-height: 0;
    padding: 72px 0 78px;
  }

  .section {
    padding: 74px 0;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 35px;
  }

  .service-row {
    grid-template-columns: 52px 1fr;
    gap: 9px 18px;
  }

  .service-row p {
    grid-column: 2;
  }

  .process {
    grid-template-columns: 1fr;
  }

  .process-step {
    min-height: 0;
  }

  .page-hero {
    padding: 68px 0 55px;
  }

  .page-hero .container {
    width: min(100% - 36px, 900px);
    margin: 0 auto;
  }

  .article {
    width: min(100% - 36px, 820px);
    padding: 62px 0 78px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 44px;
  }

  .footer-bottom {
    display: grid;
  }
}

@media (max-width: 430px) {
  .brand {
    font-size: 17px;
  }

  .brand::before {
    width: 24px;
    height: 24px;
    border-width: 6px;
  }

  .hero-grid {
    padding-top: 57px;
  }

  h1 {
    font-size: 39px;
  }

  .hero-copy,
  .page-hero p {
    font-size: 16px;
  }

  .button-row {
    display: grid;
  }

  .assurance-panel,
  .principle-card,
  .contact-card {
    padding: 28px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}