:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --ink: #17202b;
  --muted: #5b6676;
  --line: #d9e0ea;
  --nav: rgba(255, 255, 255, 0.9);
  --teal: #117c7c;
  --cyan: #2fc7d3;
  --amber: #b7791f;
  --green: #2c7a4b;
  --slate: #101720;
  --shadow: 0 18px 48px rgba(20, 31, 43, 0.12);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(20px, 5vw, 72px);
  background: var(--nav);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--slate);
  color: var(--cyan);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 16px;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

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

.nav-links a {
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  padding: 9px 10px;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="page"] {
  background: #e9f4f5;
  color: #0c5f64;
  outline: none;
}

.hero {
  position: relative;
  display: grid;
  min-height: 88vh;
  overflow: hidden;
  place-items: center start;
  padding: 92px clamp(20px, 5vw, 72px) 72px;
  background: var(--slate);
  color: #fff;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(16, 23, 32, 0.94) 0%, rgba(16, 23, 32, 0.72) 50%, rgba(16, 23, 32, 0.28) 100%),
    linear-gradient(0deg, rgba(16, 23, 32, 0.95) 0%, rgba(16, 23, 32, 0) 42%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: var(--cyan);
}

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

h1 {
  margin-bottom: 20px;
  font-size: clamp(40px, 6vw, 82px);
  line-height: 1.05;
}

.hero-copy,
.page-hero p {
  color: #dce6ee;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button,
.contact-link {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 800;
  line-height: 1.2;
  padding: 12px 18px;
}

.button.primary {
  background: var(--cyan);
  color: #061215;
}

.button.ghost {
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.button:hover,
.button:focus-visible,
.contact-link:hover,
.contact-link:focus-visible {
  filter: brightness(1.04);
  outline: 2px solid rgba(47, 199, 211, 0.36);
  outline-offset: 2px;
}

.page-main {
  padding-top: 0;
}

.page-hero {
  padding: 82px clamp(20px, 5vw, 72px) 58px;
  background:
    linear-gradient(135deg, #101720 0%, #162331 58%, #17342f 100%);
  color: #fff;
}

.page-hero h1 {
  max-width: 960px;
  margin-bottom: 18px;
}

.page-hero p {
  max-width: 860px;
}

.section {
  padding: 74px clamp(20px, 5vw, 72px);
}

.section-heading {
  display: grid;
  gap: 8px;
  margin: 0 auto 30px;
  max-width: 1180px;
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 44px);
}

.section-heading p {
  max-width: 840px;
  color: var(--muted);
  line-height: 1.8;
}

.muted-band {
  background: #eef3f6;
  border-block: 1px solid var(--line);
}

.feature-grid,
.content-grid,
.split-list {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  gap: 18px;
}

.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.content-grid.three,
.split-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.text-panel,
.info-table {
  min-height: 210px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 24px;
}

.feature-card:hover,
.feature-card:focus-visible {
  border-color: rgba(17, 124, 124, 0.45);
  outline: none;
}

.label {
  color: var(--amber);
  font-size: 13px;
  font-weight: 800;
}

.feature-card strong {
  display: block;
  margin: 14px 0 10px;
  font-size: 22px;
}

.feature-card p,
.text-panel p,
.info-table dd,
.split-list p,
.notice-panel,
.process-list span,
.site-footer {
  color: var(--muted);
  line-height: 1.75;
}

.text-panel h2,
.info-table h2,
.split-list h3 {
  margin-bottom: 12px;
  font-size: 24px;
}

.info-table dl {
  margin: 0;
}

.info-table div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.info-table div:first-of-type {
  border-top: 0;
}

.info-table dt {
  color: var(--ink);
  font-weight: 800;
}

.info-table dd {
  margin: 0;
}

.split-list article {
  border-left: 4px solid var(--green);
  background: var(--surface);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.notice-panel {
  display: flex;
  max-width: 1180px;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 auto;
}

.notice-panel span {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 12px 16px;
}

.process-list {
  display: grid;
  max-width: 980px;
  margin: 0 auto;
  padding: 0;
  gap: 14px;
  counter-reset: process;
  list-style: none;
}

.process-list li {
  position: relative;
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 20px 22px 20px 62px;
  box-shadow: var(--shadow);
}

.process-list li::before {
  position: absolute;
  left: 20px;
  top: 20px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #e9f4f5;
  color: var(--teal);
  content: counter(process);
  counter-increment: process;
  display: grid;
  place-items: center;
  font-weight: 900;
}

.process-list strong {
  color: var(--ink);
}

.contact-link,
.text-link {
  color: var(--teal);
  font-weight: 800;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  background: #101720;
  color: #b9c4d0;
  font-size: 14px;
}

.site-footer strong,
.site-footer span,
.footer-links a {
  display: inline-flex;
  align-items: center;
  margin-right: 12px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.footer-links a {
  color: #d8e0ea;
}

.error-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.error-panel {
  width: min(560px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 36px;
  box-shadow: var(--shadow);
}

@media (max-width: 1080px) {
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content-grid.three,
  .split-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 20px;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .nav-links a {
    flex: 0 0 auto;
  }

  .hero {
    min-height: 84vh;
    padding-top: 68px;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(16, 23, 32, 0.96), rgba(16, 23, 32, 0.68)),
      linear-gradient(0deg, rgba(16, 23, 32, 1) 0%, rgba(16, 23, 32, 0) 42%);
  }

  .feature-grid,
  .content-grid.two {
    grid-template-columns: 1fr;
  }

  .process-list li,
  .info-table div {
    grid-template-columns: 1fr;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .button {
    width: 100%;
  }
}

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