:root {
  color-scheme: light;
  --ink: #17211f;
  --muted: #596a65;
  --deep: #0b302e;
  --deep-soft: #174540;
  --field: #f4f7f3;
  --line: #d7e0da;
  --surface: #ffffff;
  --accent: #9b6a2f;
  --accent-soft: #ead9bf;
  --aqua: #5ea79a;
  --shadow: 0 18px 45px rgba(9, 43, 39, 0.12);
  --max-width: 1120px;
  --header-height: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 18px);
}

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

a {
  color: inherit;
}

img,
canvas {
  display: block;
  max-width: 100%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 10px;
  z-index: 20;
  transform: translateY(-140%);
  background: var(--surface);
  color: var(--deep);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
  text-decoration: none;
  box-shadow: var(--shadow);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: var(--header-height);
  background: rgba(255, 255, 255, 0.93);
  border-bottom: 1px solid rgba(215, 224, 218, 0.88);
  backdrop-filter: blur(16px);
}

.header-inner {
  width: min(100% - 40px, var(--max-width));
  min-height: var(--header-height);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--deep);
  font-weight: 700;
  text-decoration: none;
}

.brand span {
  overflow-wrap: anywhere;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 6px;
  color: #31423e;
  font-size: 14px;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  background: var(--field);
  color: var(--deep);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--deep);
  place-items: center;
  padding: 9px;
}

.nav-toggle-line {
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

.container {
  width: min(100% - 40px, var(--max-width));
  margin: 0 auto;
}

main,
.hero,
.page-hero,
.section,
[id] {
  scroll-margin-top: calc(var(--header-height) + 18px);
}

.hero {
  position: relative;
  min-height: calc(100svh - var(--header-height) - 96px);
  overflow: hidden;
  color: #f8fbf8;
  background:
    linear-gradient(120deg, rgba(11, 48, 46, 0.98), rgba(23, 69, 64, 0.92) 58%, rgba(98, 116, 78, 0.9)),
    #0b302e;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 130px;
  background: linear-gradient(to bottom, rgba(11, 48, 46, 0), rgba(11, 48, 46, 0.3));
  pointer-events: none;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.8;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(100% - 40px, var(--max-width));
  margin: 0 auto;
  padding: 112px 0 90px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent-soft);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.section-kicker {
  color: var(--accent);
}

.hero h1,
.page-hero h1,
.section-heading h2,
.split h2,
.content-grid h2,
.legal-text h2 {
  margin: 0;
  line-height: 1.18;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  font-size: 48px;
}

.hero-copy {
  max-width: 720px;
  margin: 24px 0 0;
  color: rgba(248, 251, 248, 0.88);
  font-size: 18px;
}

.hero-note {
  max-width: 720px;
  margin: 14px 0 0;
  color: rgba(248, 251, 248, 0.76);
  font-size: 15px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 10px 18px;
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  background: #f7faf7;
  color: var(--deep);
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.52);
  color: #ffffff;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.page-hero {
  color: #f8fbf8;
  background:
    linear-gradient(120deg, rgba(11, 48, 46, 0.98), rgba(28, 75, 68, 0.94)),
    #0b302e;
  padding: 86px 0 78px;
}

.page-hero h1 {
  max-width: 760px;
  font-size: 42px;
}

.page-hero p:last-child {
  max-width: 760px;
  margin: 22px 0 0;
  color: rgba(248, 251, 248, 0.86);
  font-size: 18px;
}

.section {
  padding: 78px 0;
}

.intro-band {
  padding: 46px 0;
  background: #fbfcfa;
  border-bottom: 1px solid var(--line);
}

.muted-section {
  background: var(--field);
}

.split,
.content-grid,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 56px;
  align-items: start;
}

.split p:last-child,
.content-grid .rich-text,
.contact-lead {
  margin: 0;
  color: var(--muted);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-heading h2,
.split h2,
.content-grid h2,
.legal-text h2 {
  color: var(--deep);
  font-size: 32px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.service-card,
.detail-list article,
.service-detail-list article,
.contact-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.service-card {
  min-height: 250px;
  padding: 24px;
  box-shadow: 0 12px 28px rgba(9, 43, 39, 0.07);
}

.service-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 28px;
  border-radius: 999px;
  background: #edf3ed;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}

.service-card h3,
.detail-list h3,
.service-detail-list h3,
.principle-list h3 {
  margin: 18px 0 10px;
  color: var(--deep);
  font-size: 18px;
  line-height: 1.35;
}

.service-card p,
.detail-list p,
.service-detail-list p,
.principle-list p,
.rich-text p,
.legal-text p {
  color: var(--muted);
}

.service-card p,
.detail-list p,
.service-detail-list p,
.principle-list p {
  margin: 0;
}

.principle-list,
.detail-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.principle-list > div {
  padding-top: 16px;
  border-top: 2px solid var(--aqua);
}

.detail-list article {
  padding: 24px;
}

.service-detail-list {
  display: grid;
  gap: 16px;
}

.service-detail-list article {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  padding: 26px;
}

.service-detail-list h3 {
  margin-top: 0;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: process;
}

.process-list li {
  min-height: 180px;
  padding: 22px;
  border-left: 3px solid var(--aqua);
  background: rgba(255, 255, 255, 0.68);
}

.process-list strong,
.process-list span {
  display: block;
}

.process-list strong {
  color: var(--deep);
  font-size: 17px;
}

.process-list span {
  margin-top: 12px;
  color: var(--muted);
}

.rich-text p {
  margin: 0 0 18px;
}

.rich-text p:last-child {
  margin-bottom: 0;
}

.contact-panel {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 14px 18px;
  margin: 0;
  padding: 26px;
  font-style: normal;
  box-shadow: var(--shadow);
}

.contact-panel span {
  color: var(--muted);
}

.contact-panel strong,
.contact-panel a {
  color: var(--deep);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.legal-text {
  max-width: 820px;
}

.legal-text h3 {
  margin: 34px 0 8px;
  color: var(--deep);
  font-size: 19px;
}

.legal-text p {
  margin: 0 0 16px;
}

.legal-text a {
  color: var(--deep-soft);
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fbfcfa;
  color: var(--muted);
}

.footer-inner {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
}

.footer-inner p {
  margin: 0;
}

.footer-info {
  display: grid;
  gap: 2px;
}

.footer-inner a {
  color: var(--deep);
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 980px) {
  .header-inner {
    width: min(100% - 28px, var(--max-width));
  }

  .nav-toggle {
    display: grid;
  }

  .site-nav {
    position: absolute;
    left: 14px;
    right: 14px;
    top: calc(var(--header-height) + 8px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    justify-content: flex-start;
    padding: 10px 12px;
  }

  .container,
  .hero-inner {
    width: min(100% - 28px, var(--max-width));
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    padding: 86px 0 72px;
  }

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

  .page-hero h1 {
    font-size: 34px;
  }

  .hero-copy,
  .page-hero p:last-child {
    font-size: 17px;
  }

  .split,
  .content-grid,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .principle-list,
  .detail-list,
  .process-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 66px;
  }

  body {
    font-size: 15px;
  }

  .brand img {
    width: 30px;
    height: 30px;
  }

  .brand span {
    font-size: 14px;
    line-height: 1.35;
  }

  .hero-inner {
    padding: 70px 0 58px;
  }

  .hero h1 {
    font-size: 30px;
  }

  .page-hero {
    padding: 62px 0 58px;
  }

  .page-hero h1,
  .section-heading h2,
  .split h2,
  .content-grid h2,
  .legal-text h2 {
    font-size: 27px;
  }

  .section {
    padding: 58px 0;
  }

  .service-grid,
  .principle-list,
  .detail-list,
  .process-list {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: auto;
  }

  .service-detail-list article {
    grid-template-columns: 1fr;
  }

  .contact-panel {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}