:root {
  --navy: #16243a;
  --navy-light: #223552;
  --blue: #395b78;
  --soft-blue: #edf4f7;
  --cream: #f8f5ef;
  --warm-white: #fffdf8;
  --gold: #b99a5f;
  --gold-soft: #e6d3a3;
  --text: #243042;
  --muted: #6f7a86;
  --white: #ffffff;
  --line: #e5e0d8;
  --shadow: rgba(22, 36, 58, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text);
  background: var(--cream);
  line-height: 1.8;
}

body.zh {
  font-family: "Noto Serif TC", "Songti TC", "PingFang TC", "Microsoft JhengHei", serif;
}

header {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding: 22px 8%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  font-family: Arial, sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.04em;
  text-decoration: none;
}

body.zh .brand {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

nav a {
  font-family: Arial, sans-serif;
  margin-left: 22px;
  color: var(--blue);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: 0.25s ease;
}

body.zh nav a {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

nav a:hover {
  color: var(--gold);
}

.active-lang {
  color: var(--gold);
  font-weight: 800;
}

.lang-divider {
  margin-left: 20px;
  color: #b0b0b0;
}

.hero {
  max-width: none;
  width: 100%;
  margin: 0;
  padding: 112px 8% 95px;
  background:
    radial-gradient(circle at 18% 22%, rgba(185, 154, 95, 0.28), transparent 32%),
    radial-gradient(circle at 82% 18%, rgba(237, 244, 247, 0.16), transparent 30%),
    linear-gradient(135deg, #16243a 0%, #223552 48%, #395b78 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -90px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(185, 154, 95, 0.16);
  filter: blur(6px);
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -160px;
  left: -120px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: rgba(237, 244, 247, 0.10);
  filter: blur(8px);
}

.hero-content {
  max-width: 920px;
  position: relative;
  z-index: 2;
}

.eyebrow {
  font-family: Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 13px;
  color: var(--gold-soft);
  margin-bottom: 18px;
  font-weight: 700;
}

body.zh .eyebrow {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

h1 {
  font-size: clamp(44px, 6vw, 74px);
  line-height: 1.08;
  margin-bottom: 20px;
  font-weight: 500;
}

.subtitle {
  font-family: Arial, sans-serif;
  font-size: 22px;
  max-width: 820px;
  color: #edf4f7;
  margin-bottom: 28px;
}

body.zh .subtitle {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

.hero-note {
  font-family: Arial, sans-serif;
  max-width: 780px;
  color: #dce6ea;
  font-size: 16px;
}

body.zh .hero-note {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

.buttons {
  margin-top: 35px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  font-family: Arial, sans-serif;
  padding: 13px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  display: inline-block;
  transition: 0.25s ease;
}

body.zh .button {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

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

.button.primary {
  background: var(--gold);
  color: var(--navy);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: var(--white);
}

main {
  padding: 76px 8%;
}

section {
  max-width: 1120px;
  margin: 0 auto 82px;
}

.section-title {
  font-size: 35px;
  color: var(--navy);
  margin-bottom: 16px;
  font-weight: 500;
}

.section-intro {
  font-family: Arial, sans-serif;
  color: var(--muted);
  max-width: 850px;
  font-size: 17px;
  margin-bottom: 32px;
}

body.zh .section-intro {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

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

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 30px;
  box-shadow: 0 16px 42px var(--shadow);
}

.card h3 {
  color: var(--navy);
  font-size: 22px;
  margin-bottom: 12px;
  font-weight: 500;
}

.card p,
.card li {
  font-family: Arial, sans-serif;
  color: var(--muted);
  font-size: 15px;
}

body.zh .card p,
body.zh .card li {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

.card ul {
  padding-left: 18px;
}

.experience {
  display: grid;
  gap: 18px;
}

.experience-item {
  background: var(--white);
  border-left: 5px solid var(--gold);
  border-radius: 14px;
  padding: 28px 30px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.experience-item h3 {
  color: var(--navy);
  font-size: 24px;
  margin-bottom: 8px;
  font-weight: 500;
}

.meta {
  font-family: Arial, sans-serif;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
}

body.zh .meta {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

.experience-item p {
  font-family: Arial, sans-serif;
  color: var(--muted);
  font-size: 15px;
}

body.zh .experience-item p {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

.credentials {
  background: var(--soft-blue);
  border-radius: 24px;
  padding: 42px;
  border: 1px solid #d8e5ea;
}

.credential-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.credential {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  text-align: center;
  font-family: Arial, sans-serif;
  font-weight: 700;
  color: var(--navy);
}

body.zh .credential {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

.notice {
  background: var(--navy);
  color: var(--white);
  padding: 44px;
  border-radius: 24px;
}

.notice h2 {
  margin-bottom: 14px;
  font-size: 30px;
  font-weight: 500;
}

.notice p {
  font-family: Arial, sans-serif;
  color: #dce6ea;
  max-width: 850px;
}

body.zh .notice p {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

.contact {
  text-align: center;
  background: var(--white);
  border-radius: 24px;
  border: 1px solid var(--line);
  padding: 52px 30px;
}

.contact p {
  font-family: Arial, sans-serif;
  color: var(--muted);
  margin-bottom: 24px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

body.zh .contact p {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

.contact .buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 20px;
}

footer {
  text-align: center;
  padding: 36px 8%;
  font-family: Arial, sans-serif;
  color: var(--muted);
  font-size: 14px;
}

body.zh footer {
  font-family: "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
}

@media (max-width: 900px) {
  header {
    display: block;
  }

  nav {
    margin-top: 14px;
  }

  nav a {
    margin-left: 0;
    margin-right: 14px;
    margin-bottom: 8px;
  }

  .lang-divider {
    margin-left: 0;
    margin-right: 12px;
  }

  .hero {
    padding: 82px 7%;
  }

  main {
    padding: 58px 7%;
  }

  .grid,
  .credential-list {
    grid-template-columns: 1fr;
  }

  .card,
  .credentials,
  .notice,
  .contact {
    padding: 28px;
  }
}