:root {
  color-scheme: light;
  --ink: #0c1f24;
  --ink-soft: #335158;
  --brand: #1a7f6d;
  --brand-dark: #0d4f4a;
  --accent: #d39a43;
  --paper: #f7f3ee;
  --mist: #e6f0ef;
  --sea: #0a3b44;
  --glow: #f6e6c6;
  --card: #ffffff;
  --shadow: 0 16px 40px rgba(12, 31, 36, 0.12);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top, #fefaf2, var(--paper) 55%, #f4f8f7 100%);
  line-height: 1.7;
}

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

.page {
  min-height: 100vh;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(211, 154, 67, 0.16), transparent 45%),
    radial-gradient(circle at 80% 10%, rgba(26, 127, 109, 0.12), transparent 35%),
    radial-gradient(circle at 10% 80%, rgba(13, 79, 74, 0.12), transparent 50%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 6vw;
  background: rgba(247, 243, 238, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(12, 31, 36, 0.06);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #fff;
  font-family: "Noto Serif TC", serif;
  font-weight: 700;
  display: grid;
  place-items: center;
  letter-spacing: 1px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  font-size: 0.9rem;
}

.brand-name {
  font-family: "Noto Serif TC", serif;
  font-weight: 700;
  font-size: 1.05rem;
}

.brand-sub {
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.site-nav {
  display: flex;
  gap: 22px;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--ink-soft);
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--brand);
  transition: width 0.3s ease;
}

.site-nav a:hover::after,
.site-nav a:focus::after {
  width: 100%;
}

.cta {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--sea);
  color: #fff;
  font-weight: 500;
}

main {
  display: flex;
  flex-direction: column;
  gap: 80px;
  padding: 40px 6vw 100px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.8rem;
  color: var(--brand-dark);
  margin: 0 0 12px;
}

h1,
h2,
h3 {
  font-family: "Noto Serif TC", serif;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.4rem);
}

h3 {
  font-size: 1.2rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button.primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 12px 24px rgba(26, 127, 109, 0.22);
}

.button.ghost {
  border-color: var(--brand);
  color: var(--brand);
}

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

.hero-panel {
  display: grid;
  gap: 20px;
}

.panel-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

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

.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.panel-item {
  padding: 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(26, 127, 109, 0.08);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  transition: all 0.3s ease;
}

.panel-item:hover {
  background: rgba(255, 255, 255, 1);
  border-color: rgba(26, 127, 109, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(12, 31, 36, 0.08);
}

.panel-icon {
  width: 24px;
  height: 24px;
  color: var(--brand);
  flex-shrink: 0;
  margin-top: 2px;
}

.panel-item > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.panel-title {
  display: block;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.panel-value {
  font-weight: 600;
}

.section {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.section-header {
  max-width: 720px;
}

.section.accent {
  background: linear-gradient(120deg, rgba(26, 127, 109, 0.08), rgba(211, 154, 67, 0.08));
  padding: 48px;
  border-radius: 32px;
}

.section.shade {
  background: rgba(12, 31, 36, 0.04);
  padding: 48px;
  border-radius: 32px;
}

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

.tag-list {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.tag {
  padding: 6px 14px;
  background: var(--mist);
  border-radius: 999px;
  font-size: 0.85rem;
}

.info-card {
  background: var(--card);
  padding: 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.info-pair {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(12, 31, 36, 0.08);
}

.info-pair:last-child {
  border-bottom: none;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 48px rgba(12, 31, 36, 0.18);
}

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(26, 127, 109, 0.1), rgba(211, 154, 67, 0.1));
  border-radius: 12px;
}

.card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--brand);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.solution {
  background: var(--card);
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid rgba(26, 127, 109, 0.08);
}

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

.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.pill {
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--glow);
  font-size: 0.9rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}

.timeline-step {
  padding: 20px;
  border-radius: 18px;
  background: var(--card);
  border: 1px dashed rgba(12, 31, 36, 0.15);
}

.timeline-step span {
  font-weight: 700;
  color: var(--brand);
}

.metrics {
  background: var(--card);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  text-align: center;
  color: var(--ink-soft);
}

.advantage-grid,
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.advantage-grid article,
.value-grid article {
  padding: 22px;
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.contact {
  background: linear-gradient(140deg, rgba(10, 59, 68, 0.08), rgba(26, 127, 109, 0.08));
  padding: 48px;
  border-radius: 32px;
}

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

.contact-card {
  background: #fff;
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 12px 0;
}

.contact-item .icon {
  width: 20px;
  height: 20px;
  color: var(--brand);
  flex-shrink: 0;
}

.contact-item a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.2s ease;
}

.contact-item a:hover {
  color: var(--brand-dark);
  text-decoration: underline;
}

.site-footer {
  padding: 40px 6vw 60px;
  border-top: 1px solid rgba(12, 31, 36, 0.08);
  color: var(--ink-soft);
}

/* ---- 配图/插画 ---- */

.hero-illustration {
  display: block;
  width: 100%;
  max-width: 520px;
  margin: 0 auto 28px;
  border-radius: var(--radius);
  pointer-events: none;
}

.section-illustration {
  display: flex;
  justify-content: center;
  margin-bottom: 36px;
}

.section-illustration img {
  width: 100%;
  max-width: 520px;
  height: auto;
  border-radius: var(--radius);
  pointer-events: none;
}

.section-illustration.compact img {
  max-width: 520px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--reveal-delay, 0s);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .site-header {
    flex-direction: column;
    gap: 16px;
  }

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

@media (max-width: 720px) {
  main {
    padding: 30px 5vw 80px;
  }

  .section.accent,
  .section.shade,
  .contact {
    padding: 28px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }

  [data-reveal] {
    transition: none;
  }
}