:root {
  --bg: #f8fbff;
  --surface: #ffffff;
  --surface-soft: #f2f7fd;
  --surface-warm: #fff9f0;
  --text: #193753;
  --muted: #5b6d80;
  --brand: #1169ba;
  --brand-deep: #093a69;
  --accent: #e39a2c;
  --line: rgba(17, 105, 186, 0.14);
  --shadow: 0 22px 44px rgba(9, 45, 87, 0.11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(
      circle at top left,
      rgba(17, 105, 186, 0.09),
      transparent 22rem
    ),
    radial-gradient(
      circle at bottom right,
      rgba(227, 154, 44, 0.08),
      transparent 20rem
    ),
    linear-gradient(180deg, #fbfdff 0%, var(--bg) 100%);
  line-height: 1.65;
}

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

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  padding: 0.75rem 1rem;
  background: var(--brand);
  color: #fff;
  border-radius: 0.75rem;
  z-index: 10;
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
}

.top-logos {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(24, 50, 74, 0.08);
}

.top-logos__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
}

.hero {
  padding: 4.5rem 0;
  background:
    linear-gradient(rgba(9, 58, 105, 0.72), rgba(17, 105, 186, 0.62)),
    url("images/slogan.jpg") center / cover no-repeat;
  color: #fff;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 2rem;
  align-items: center;
}

.eyebrow,
.section-heading__kicker {
  margin: 0 0 0.8rem;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow {
  color: rgba(255, 255, 255, 0.84);
}

.hero h1 {
  margin: 0;
  font-family: "Noto Serif TC", "PMingLiU", serif;
  font-size: clamp(2.35rem, 4.8vw, 4.2rem);
  line-height: 1.08;
}

.slogan {
  margin: 0.9rem 0 0;
  font-size: 1.18rem;
  color: rgba(255, 255, 255, 0.94);
}

.hero__lead {
  margin: 1.4rem 0 0;
  max-width: 38rem;
  color: rgba(255, 255, 255, 0.92);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.15rem;
  padding: 0.8rem 1.3rem;
  border-radius: 0.8rem;
  border: 1px solid transparent;
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease;
}

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

.button--primary {
  background: linear-gradient(135deg, #ffffff, #f0f7ff);
  color: var(--brand-deep);
}

.button--secondary {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.44);
  color: #fff;
}

.hero__panel,
.feature-card,
.partner-logo,
.join-invitation {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow);
}

.hero__panel {
  padding: 1.5rem;
  border-radius: 1rem;
  color: var(--text);
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.98),
      rgba(242, 247, 253, 0.96)
    ),
    #fff;
}

.hero__panel h2 {
  margin: 0 0 0.9rem;
  font-size: 1.3rem;
}

.hero-points {
  display: grid;
  gap: 0.85rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-points li {
  position: relative;
  padding-left: 1rem;
  color: var(--muted);
}

.hero-points li::before {
  content: "";
  position: absolute;
  top: 0.7rem;
  left: 0;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--accent);
}

.section {
  padding: 4.5rem 0;
}

.section-heading {
  max-width: 44rem;
  margin-bottom: 2rem;
}

.section-heading--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-heading__kicker {
  color: var(--brand);
}

.section-heading h2,
.cta h2,
.join-invitation h3 {
  margin: 0 0 0.8rem;
  font-family: "Noto Serif TC", "PMingLiU", serif;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.14;
}

.section-heading p,
.feature-card p,
.cta p,
.join-invitation__content p {
  margin: 0;
  color: var(--muted);
}

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

.feature-card {
  padding: 1.6rem;
  border-radius: 1rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(
      180deg,
      rgba(17, 105, 186, 0.03),
      rgba(255, 255, 255, 0.96)
    ),
    #fff;
}

.feature-card__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.8rem;
  background: linear-gradient(135deg, #fff0d8, #fde7bc);
  color: #8c5a00;
  font-weight: 700;
}

.feature-card h3 {
  margin: 1rem 0 0.6rem;
  font-size: 1.15rem;
}

.cta {
  padding-top: 0;
}

.cta__inner {
  display: flex;
  text-align: center;
  justify-content: center;
  /* justify-content: space-between; */
  align-items: center;
  gap: 2rem;
  padding: 2rem;
  border-radius: 1rem;
  background: linear-gradient(135deg, #ebf4ff, var(--surface-warm));
  border: 1px solid var(--line);
}

.partners {
  padding-top: 4rem;
}

.partner-logos {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.9rem;
  border: 1px solid rgba(24, 50, 74, 0.08);
  transition:
    transform 160ms ease,
    box-shadow 160ms ease;

  aspect-ratio: 1;
}

.partner-logo:hover {
  /* transform: translateY(-2px); */
  box-shadow: 0 18px 34px rgba(9, 45, 87, 0.12);
}

.partner-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.pad-xs {
  padding: 0.55rem;
}

.pad-sm {
  padding: 1rem;
}

.pad-md {
  padding: 1.5rem;
}

.pad-lg {
  padding: 2rem;
}

.pad-xl {
  padding: 2.5rem;
}

.pad-y-sm {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.pad-y-md {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.pad-y-lg {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.pad-xxl {
  padding-top: 3.5rem;
  padding-bottom: 3.5rem;
}

.join-invitation {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(220px, 0.75fr);
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  padding: 1.8rem;
  border-radius: 1rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(17, 105, 186, 0.05), rgba(227, 154, 44, 0.08)),
    #fff;
}

.qr-code {
  display: flex;
  justify-content: center;
}

.join-qr {
  width: min(100%, 13.5rem);
  padding: 1rem;
  border-radius: 0.9rem;
  background: var(--surface-soft);
}

.footer {
  background: #10253a;
  color: #fff;
  padding: 4rem 0 2rem;
}

.disclaimer {
  max-width: 66rem;
  margin: 0 auto;
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
}

.footer-content {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(180px, 0.7fr) minmax(
      260px,
      0.85fr
    );
  gap: 1.2rem;
  margin-top: 2rem;
}

.company-info,
.footer-links {
  padding: 1.5rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.company-info h2,
.footer-links h2 {
  margin: 0 0 0.8rem;
  font-size: 1.15rem;
}

.company-info__slogan,
.footer-links li,
.contact-info li {
  color: rgba(255, 255, 255, 0.82);
}

.social-icons {
  display: flex;
  gap: 0.9rem;
  margin-top: 1rem;
}

.social-icons img {
  width: 1.5rem;
  height: 1.5rem;
  filter: brightness(0) invert(1);
}

.footer-links ul,
.contact-info {
  display: grid;
  gap: 0.8rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.84);
  text-decoration: none;
}

.footer-links a:hover {
  color: #fff;
}

.contact-info li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.icon {
  width: 1rem;
  height: 1rem;
  background-position: center;
  background-size: contain;
  background-repeat: no-repeat;
  filter: brightness(0) invert(1);
  flex: 0 0 1rem;
}

.icon-location {
  background-image: url("images/icons/location.svg");
}

.icon-fax {
  background-image: url("images/icons/fax.svg");
}

.icon-email {
  background-image: url("images/icons/email.svg");
}

.copyright {
  margin-top: 1.8rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
}

@media (max-width: 1024px) {
  .hero__grid,
  .cta__inner,
  .join-invitation,
  .footer-content {
    grid-template-columns: 1fr;
  }

  .cta__inner {
    display: grid;
  }

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

@media (max-width: 720px) {
  .hero,
  .section {
    padding: 3.5rem 0;
  }

  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }
  .partner-logos {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
  }
}