:root {
  color-scheme: light;
  --background: #f7fbff;
  --surface: #ffffff;
  --text: #101827;
  --muted: #5f6f86;
  --blue: #0b7cff;
  --blue-soft: rgba(11, 124, 255, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--background);
}

body {
  min-height: 100%;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, var(--surface) 0%, #f5fbff 58%, #edf7ff 100%);
}

.top-anchor {
  display: block;
  height: 0;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  padding: 18px clamp(22px, 5vw, 64px);
  border-bottom: 1px solid rgba(24, 84, 148, 0.08);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(18px);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.site-logo {
  display: block;
  width: clamp(150px, 15vw, 220px);
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 36px);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link {
  color: var(--text);
  font-size: 15px;
  font-weight: 650;
  letter-spacing: 0;
  line-height: 1.4;
  text-decoration: none;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--blue);
}

.text-link {
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
}

.text-link:hover,
.text-link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.page-shell {
  position: relative;
  min-height: 100svh;
  isolation: isolate;
  overflow: hidden;
}

.page-shell::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 124, 255, 0.08), transparent 46%);
  opacity: 0.72;
}

.poster {
  display: flex;
  min-height: 100svh;
  width: min(100%, 960px);
  margin: 0 auto;
  padding: clamp(112px, 14vw, 164px) clamp(32px, 8vw, 96px) clamp(64px, 10vw, 112px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

h1 {
  width: min(100%, 900px);
  max-width: 900px;
  margin: 0;
  overflow-wrap: anywhere;
  font-size: clamp(32px, 4.8vw, 68px);
  font-weight: 760;
  letter-spacing: 0;
  line-height: 1.12;
}

.status {
  margin: clamp(18px, 3vw, 28px) 0 0;
  color: var(--blue);
  font-size: clamp(13px, 1.2vw, 17px);
  font-weight: 650;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: lowercase;
}

.about-section {
  scroll-margin-top: 96px;
  padding: clamp(72px, 10vw, 128px) clamp(22px, 6vw, 80px);
  background: rgba(255, 255, 255, 0.52);
}

.careers-section {
  background: rgba(237, 247, 255, 0.72);
}

.about-inner {
  width: min(100%, 980px);
  margin: 0 auto;
  border-top: 1px solid rgba(24, 84, 148, 0.14);
  padding-top: clamp(30px, 5vw, 48px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

h2 {
  margin: 0 0 18px;
  color: var(--text);
  font-size: clamp(28px, 3.4vw, 48px);
  font-weight: 760;
  letter-spacing: 0;
  line-height: 1.16;
}

.about-inner p:last-child {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 22px);
  line-height: 1.72;
  overflow-wrap: anywhere;
}

.content-shell {
  min-height: 100svh;
  padding: clamp(136px, 16vw, 184px) clamp(22px, 6vw, 80px) clamp(72px, 10vw, 120px);
}

.content-wrap {
  width: min(100%, 980px);
  margin: 0 auto;
}

.content-hero {
  padding-bottom: clamp(48px, 8vw, 88px);
}

.content-hero h1 {
  max-width: 780px;
  text-align: left;
}

.lead {
  max-width: 720px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.content-section {
  border-top: 1px solid rgba(24, 84, 148, 0.14);
  padding: clamp(34px, 5vw, 52px) 0 0;
}

.content-section + .content-section {
  margin-top: clamp(44px, 7vw, 76px);
}

.content-section p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 22px);
  line-height: 1.72;
  overflow-wrap: anywhere;
}

.job-summary-grid {
  display: grid;
  width: min(100%, 860px);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.job-card {
  display: flex;
  min-height: 220px;
  border: 1px solid rgba(24, 84, 148, 0.14);
  border-radius: 8px;
  padding: clamp(22px, 3vw, 30px);
  flex-direction: column;
  justify-content: space-between;
  color: var(--text);
  background: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition:
    border-color 160ms ease,
    transform 160ms ease,
    box-shadow 160ms ease;
}

.job-card:hover,
.job-card:focus-visible {
  border-color: rgba(11, 124, 255, 0.5);
  box-shadow: 0 18px 44px rgba(16, 24, 39, 0.08);
  transform: translateY(-2px);
}

.job-type {
  width: fit-content;
  margin-bottom: 22px;
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--blue);
  background: var(--blue-soft);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.3;
}

.job-card strong {
  display: block;
  margin-bottom: 12px;
  font-size: clamp(20px, 2.1vw, 26px);
  line-height: 1.32;
}

.job-card span:last-child {
  display: block;
  color: var(--muted);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.65;
}

.job-detail {
  scroll-margin-top: 112px;
  margin-top: clamp(64px, 9vw, 104px);
  border-top: 1px solid rgba(24, 84, 148, 0.16);
  padding-top: clamp(36px, 6vw, 60px);
}

.job-detail h2 {
  max-width: 820px;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.application-panel,
.application-footer {
  width: min(100%, 840px);
  border: 1px solid rgba(24, 84, 148, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.application-panel {
  padding: clamp(24px, 4vw, 36px);
}

.application-panel h2 {
  margin-bottom: 16px;
}

.application-panel p:last-child,
.application-footer p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 1.7vw, 21px);
  line-height: 1.72;
  overflow-wrap: anywhere;
}

.application-email {
  color: var(--blue);
  font-weight: 760;
  text-decoration: none;
}

.application-email:hover,
.application-email:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.application-footer {
  margin-top: clamp(48px, 7vw, 80px);
  padding: clamp(22px, 4vw, 32px);
}

.job-section {
  max-width: 840px;
  padding: clamp(22px, 4vw, 34px) 0;
}

.job-section + .job-section {
  border-top: 1px solid rgba(24, 84, 148, 0.1);
}

.job-section h3 {
  margin: 0 0 16px;
  color: var(--text);
  font-size: clamp(20px, 2.1vw, 26px);
  font-weight: 740;
  letter-spacing: 0;
  line-height: 1.28;
}

.job-section p,
.job-section li {
  color: var(--muted);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.76;
  overflow-wrap: anywhere;
}

.job-section p {
  max-width: 780px;
  margin: 0;
}

.job-section p + p {
  margin-top: 14px;
}

.job-section ol,
.job-section ul {
  max-width: 800px;
  margin: 0;
  padding-left: 1.35em;
}

.job-section li + li {
  margin-top: 8px;
}

.role-list {
  display: grid;
  width: min(100%, 760px);
  margin: 0;
  padding: 0;
  gap: 18px;
  list-style: none;
}

.role-list li {
  border-top: 1px solid rgba(24, 84, 148, 0.12);
  padding-top: 18px;
}

.role-list strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.35;
}

.role-list span {
  display: block;
  color: var(--muted);
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.68;
}

@media (max-width: 640px) {
  .site-header {
    min-height: 74px;
    padding: 14px 20px;
  }

  .site-logo {
    width: clamp(132px, 38vw, 160px);
  }

  .nav-link {
    font-size: 14px;
  }

  .page-shell {
    min-height: 100svh;
  }

  .page-shell::before {
    background: linear-gradient(180deg, rgba(11, 124, 255, 0.08), transparent 44%);
    opacity: 0.58;
  }

  .poster {
    min-height: 100svh;
    padding: 96px 22px 54px;
  }

  h1 {
    max-width: 11em;
    font-size: clamp(30px, 8.5vw, 44px);
    line-height: 1.16;
  }

  .status {
    margin-top: 18px;
    font-size: 13px;
  }

  .about-section {
    scroll-margin-top: 76px;
    padding: 64px 22px 76px;
  }

  .about-inner {
    padding-top: 30px;
  }

  .content-shell {
    padding: 112px 22px 72px;
  }

  .content-hero h1 {
    max-width: 11em;
  }

  .job-summary-grid {
    grid-template-columns: 1fr;
  }

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

  .job-detail {
    scroll-margin-top: 92px;
  }
}