:root {
  color-scheme: light;
  --ink: #13231d;
  --ink-soft: #244235;
  --accent: #f27f3d;
  --accent-dark: #b25421;
  --mint: #c5e4cf;
  --sand: #f7f1e7;
  --wave: #f2dbc8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Serif TC", "Source Han Serif TC", "PMingLiU", serif;
  color: var(--ink);
  background: radial-gradient(circle at top, #fff 0%, var(--sand) 55%, #efe2cf 100%);
  min-height: 100vh;
}

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

.bg-orbit {
  position: fixed;
  inset: -20% 10% auto auto;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(242, 127, 61, 0.25) 0%, rgba(242, 127, 61, 0) 70%);
  filter: blur(2px);
  pointer-events: none;
  z-index: 0;
  animation: float 10s ease-in-out infinite;
}

.site-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 8vw;
  background: rgba(247, 241, 231, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(36, 66, 53, 0.1);
  z-index: 10;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.logo img {
  height: 34px;
  width: auto;
  display: block;
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav {
  display: flex;
  gap: 24px;
  font-size: 15px;
}

.nav a {
  position: relative;
  padding-bottom: 6px;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav a:hover::after {
  width: 100%;
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-btn {
  border: 1px solid rgba(36, 66, 53, 0.2);
  background: #fffaf5;
  color: var(--ink-soft);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.lang-btn.active {
  background: var(--accent);
  color: #fffaf5;
  border-color: transparent;
  box-shadow: 0 8px 16px rgba(242, 127, 61, 0.25);
}

main {
  position: relative;
  z-index: 1;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  padding: 80px 8vw 60px;
}

.hero-text h1 {
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.15;
  margin: 12px 0 20px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 12px;
  color: var(--accent-dark);
  margin: 0;
}

.lead {
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.cta-row {
  display: flex;
  gap: 16px;
  margin: 28px 0 32px;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 140px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn.primary {
  background: var(--accent);
  color: #fffaf5;
  box-shadow: 0 10px 20px rgba(242, 127, 61, 0.25);
}

.btn.ghost {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: rgba(242, 127, 61, 0.08);
}

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

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 18px;
}

.metrics strong {
  display: block;
  font-size: 22px;
}

.metrics span {
  color: var(--ink-soft);
  font-size: 14px;
}

.hero-panel {
  display: grid;
  gap: 24px;
}

.panel-card {
  background: #fff;
  padding: 26px;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(18, 35, 29, 0.12);
  border: 1px solid rgba(36, 66, 53, 0.1);
  animation: rise 0.8s ease both;
}

.panel-card ul {
  padding-left: 18px;
  margin: 16px 0 0;
  color: var(--ink-soft);
}

.panel-badge {
  margin-top: 12px;
  display: inline-flex;
  padding: 8px 14px;
  background: var(--mint);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 1px;
}

.section {
  padding: 60px 8vw;
}

.section-head {
  max-width: 620px;
  margin-bottom: 30px;
}

.section-head h2 {
  font-size: clamp(26px, 4vw, 40px);
  margin: 0 0 12px;
}

.services {
  background: linear-gradient(135deg, rgba(197, 228, 207, 0.55), rgba(247, 241, 231, 0.7));
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.service-grid article {
  background: #fffaf5;
  padding: 18px 20px;
  border-radius: 16px;
  border: 1px solid rgba(36, 66, 53, 0.1);
  box-shadow: 0 12px 22px rgba(18, 35, 29, 0.08);
  font-size: 15px;
}

.solutions {
  position: relative;
}

.solution-list {
  display: grid;
  gap: 18px;
}

.solution-item {
  background: #fff;
  padding: 22px 26px;
  border-radius: 18px;
  border: 1px solid rgba(36, 66, 53, 0.1);
  box-shadow: 0 16px 28px rgba(18, 35, 29, 0.08);
}

.process {
  background: linear-gradient(140deg, rgba(242, 219, 200, 0.9), rgba(247, 241, 231, 0.95));
}

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

.process-steps div {
  background: #fff;
  padding: 22px;
  border-radius: 18px;
  border: 1px solid rgba(36, 66, 53, 0.08);
}

.process-steps span {
  font-size: 20px;
  color: var(--accent-dark);
  font-weight: 700;
}

.contact {
  padding-bottom: 100px;
}

.contact-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  background: #13231d;
  color: #f7f1e7;
  padding: 36px;
  border-radius: 26px;
  position: relative;
  overflow: hidden;
}

.contact-card::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(242, 127, 61, 0.6), rgba(242, 127, 61, 0));
  opacity: 0.7;
}

.contact-actions {
  display: grid;
  gap: 12px;
}

.site-footer {
  padding: 30px 8vw 50px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--ink-soft);
  font-size: 14px;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(18px);
  }
}

@media (max-width: 720px) {
  .site-header {
    flex-direction: column;
    gap: 12px;
  }

  .nav-group {
    flex-direction: column;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero {
    padding-top: 50px;
  }
}