*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  color: #1f2430;
  background-color: #f5f7fb;
  line-height: 1.6;
}

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

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

:focus-visible {
  outline: 3px solid #0066ff;
  outline-offset: 2px;
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

.section {
  padding: 96px 0;
  background-color: #fff;
}

.section.tinted {
  background: linear-gradient(135deg, #eef3ff, #fbfdff);
}

.two-column {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
}

.eyebrow {
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: #4b6bff;
  font-weight: 700;
  margin-bottom: 8px;
}

h1,
h2,
h3 {
  color: #0f172a;
  line-height: 1.3;
}

h1 {
  font-size: clamp(2.3rem, 4vw, 3.5rem);
  margin: 0 0 24px;
}

h2 {
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  margin-bottom: 16px;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

p {
  margin: 0 0 16px;
}

ul {
  padding-left: 20px;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  background: linear-gradient(135deg, #1f4fff, #5c7bff);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.primary-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 20px rgba(32, 61, 255, 0.25);
}

.primary-button.ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  box-shadow: none;
}

.text-link {
  color: #1f4fff;
  font-weight: 600;
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.site-header {
  background: radial-gradient(circle at top right, #1f4fff, #0a1a42);
  color: #fff;
  padding-bottom: 64px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.logo-mark {
  background: rgba(255, 255, 255, 0.15);
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 0.85rem;
}

.logo-text {
  font-size: 0.95rem;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 24px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  font-weight: 500;
  opacity: 0.8;
}

.main-nav a:hover {
  opacity: 1;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: #fff;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
  align-items: center;
  margin-top: 32px;
}

.hero-content .lede {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
}

.hero-title {
  color: #ffffff;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.hero-visual {
  position: relative;
  isolation: isolate;
}

.hero-visual img {
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 25px 40px rgba(6, 10, 50, 0.35);
}

.hero-circle {
  position: absolute;
  inset: 10% 5%;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.25);
  z-index: -1;
}

.about-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.about-cards article {
  padding: 24px;
  border-radius: 18px;
  border: 1px solid #e5e9f5;
  background: #fdfdff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.mission-grid article {
  padding: 24px;
  background: #fff;
  border-radius: 18px;
  border: 1px solid #e6ebff;
  min-height: 220px;
  position: relative;
}

.mission-grid .number {
  position: absolute;
  top: 16px;
  right: 24px;
  font-size: 2rem;
  font-weight: 700;
  color: rgba(31, 79, 255, 0.15);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.timeline article {
  padding: 28px;
  border-left: 4px solid #1f4fff;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 15px 30px rgba(15, 23, 42, 0.08);
}

.membership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.membership-grid article {
  background: #fff;
  border-radius: 18px;
  padding: 32px 28px;
  border: 1px solid #dfe7ff;
  box-shadow: 0 20px 30px rgba(15, 23, 42, 0.05);
}

.membership-grid ul {
  margin: 16px 0 0;
}

.membership-grid li {
  margin-bottom: 8px;
}

.cta-panel {
  margin-top: 32px;
  padding: 24px 32px;
  border-radius: 20px;
  background: #0f1a3e;
  color: #fff;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.cta-panel h3 {
  color: #ffffff;
}

.governance-list {
  list-style: none;
  padding-left: 0;
}

.governance-list li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 12px;
}

.governance-list li::before {
  content: "";
  width: 10px;
  height: 10px;
  background: linear-gradient(135deg, #1f4fff, #5c7bff);
  border-radius: 50%;
  position: absolute;
  left: 0;
  top: 8px;
}

.stat-card {
  background: #0f172a;
  color: #fff;
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.2);
}

.stat-card ul {
  list-style: none;
  padding-left: 0;
}

.stat-card li {
  margin-bottom: 12px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.news-grid article {
  background: #fff;
  padding: 24px;
  border-radius: 16px;
  border: 1px solid #e6ebff;
}

.news-date {
  font-weight: 600;
  color: #4b6bff;
  margin-bottom: 8px;
}

.site-footer {
  background: #040818;
  color: #d9deff;
  padding: 80px 0 40px;
}

.site-footer h2 {
  color: #ffffff;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  align-items: start;
}

.contact-card {
  background: rgba(255, 255, 255, 0.05);
  padding: 24px;
  border-radius: 18px;
}

.contact-card ul {
  list-style: none;
  padding-left: 0;
}

.contact-card li {
  margin-bottom: 12px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 500;
}

.contact-form input,
.contact-form textarea {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.contact-form button {
  align-self: flex-start;
}

.footer-bottom {
  margin-top: 48px;
  text-align: center;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 900px) {
  .main-nav ul {
    position: absolute;
    top: 68px;
    right: 0;
    background: rgba(0, 0, 0, 0.3);
    padding: 16px 24px;
    border-radius: 16px;
    flex-direction: column;
    gap: 16px;
    display: none;
  }

  .main-nav.open ul {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .primary-button.ghost {
    display: none;
  }

  .section {
    padding: 72px 0;
  }
}

@media (max-width: 600px) {
  .hero {
    text-align: left;
  }

  .hero-actions {
    justify-content: flex-start;
  }
}