:root {
  --jade: #04996f;
  --jade-deep: #0d5f48;
  --pine: #173f34;
  --moss: #6c8f55;
  --cinnabar: #9f4b32;
  --ink: #24332d;
  --muted: #6c756c;
  --paper: #f8f4e9;
  --paper-deep: #efe3c8;
  --white: #fffdf7;
  --line: rgba(23, 63, 52, 0.16);
  --shadow: 0 22px 60px rgba(23, 63, 52, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Serif TC", "Songti TC", "PingFang TC", "Microsoft JhengHei", serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(4, 153, 111, 0.1), transparent 28rem),
    linear-gradient(90deg, rgba(23, 63, 52, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(23, 63, 52, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 32px 32px, 32px 32px, auto;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 64px);
  border-bottom: 1px solid var(--line);
  background: rgba(248, 244, 233, 0.88);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 8px 18px rgba(4, 153, 111, 0.18);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 17px;
  letter-spacing: 0;
  color: var(--pine);
}

.brand small {
  max-width: 340px;
  margin-top: 2px;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 9px;
  line-height: 1.35;
}

.site-header nav,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--pine);
  font-size: 15px;
}

.site-header nav a {
  padding: 8px 0;
  border-bottom: 1px solid transparent;
}

.site-header nav a:hover {
  border-color: var(--jade);
  color: var(--jade-deep);
}

.nav-cta,
.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  white-space: nowrap;
}

.nav-cta,
.primary-btn {
  color: var(--white);
  background: linear-gradient(135deg, var(--jade), var(--jade-deep));
  box-shadow: 0 14px 28px rgba(4, 153, 111, 0.22);
}

.secondary-btn {
  color: var(--pine);
  border: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.72);
}

.section,
.section-band {
  padding: clamp(72px, 9vw, 124px) clamp(20px, 5vw, 80px);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  align-items: center;
  gap: clamp(38px, 6vw, 84px);
  min-height: calc(100vh - 78px);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(159, 75, 50, 0.18);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cinnabar);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 24px;
  color: var(--pine);
  font-size: clamp(42px, 7vw, 84px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  color: var(--pine);
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  color: var(--pine);
  font-size: 22px;
  line-height: 1.25;
}

.hero-lede,
.section-heading p,
.about-section p,
.download-band p,
.feature-grid p,
.system-grid p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.hero-lede {
  max-width: 720px;
  margin-bottom: 30px;
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 38px;
}

.proof-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 760px;
  margin: 0;
}

.proof-points div {
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.66);
}

.proof-points dt {
  margin-bottom: 6px;
  color: var(--jade-deep);
  font-size: 24px;
  font-weight: 800;
}

.proof-points dd {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.hero-visual {
  position: relative;
  min-height: 620px;
  display: grid;
  place-items: center;
}

.moon-seal {
  position: absolute;
  top: 38px;
  right: 20px;
  display: grid;
  place-items: center;
  width: 118px;
  height: 118px;
  border: 2px solid rgba(159, 75, 50, 0.4);
  border-radius: 50%;
  color: rgba(159, 75, 50, 0.72);
  font-size: 56px;
  font-weight: 800;
  background: rgba(255, 253, 247, 0.68);
}

.phone {
  position: relative;
  width: min(360px, 82vw);
  min-height: 560px;
  padding: 28px;
  border: 10px solid #1b2f29;
  border-radius: 42px;
  background:
    linear-gradient(rgba(255, 253, 247, 0.92), rgba(255, 253, 247, 0.92)),
    url("assets-brand-mark.svg") center 58% / 72% no-repeat;
  box-shadow: var(--shadow);
}

.phone::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 50%;
  width: 104px;
  height: 22px;
  border-radius: 0 0 18px 18px;
  background: #1b2f29;
  transform: translateX(-50%);
}

.phone-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin: 18px 0 24px;
  color: var(--pine);
  font-size: 14px;
}

.phone-top b {
  color: var(--jade-deep);
}

.pulse-card {
  padding: 20px;
  border-radius: 18px;
  color: var(--white);
  background: linear-gradient(135deg, var(--pine), var(--jade-deep));
}

.pulse-card small,
.pulse-card strong {
  display: block;
}

.pulse-card small {
  margin-bottom: 10px;
  color: rgba(255, 253, 247, 0.72);
}

.pulse-card strong {
  font-size: 20px;
  line-height: 1.45;
}

.care-list {
  display: grid;
  gap: 12px;
  margin: 22px 0;
}

.care-list span {
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 253, 247, 0.84);
  color: var(--pine);
  font-size: 14px;
}

.chart {
  display: flex;
  align-items: end;
  gap: 10px;
  height: 96px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(239, 227, 200, 0.56);
}

.chart i {
  flex: 1;
  border-radius: 999px 999px 0 0;
  background: var(--jade);
}

.chart i:nth-child(1) { height: 42%; }
.chart i:nth-child(2) { height: 62%; background: var(--moss); }
.chart i:nth-child(3) { height: 50%; }
.chart i:nth-child(4) { height: 76%; background: var(--cinnabar); }
.chart i:nth-child(5) { height: 88%; }

.section-heading {
  max-width: 860px;
  margin-bottom: 38px;
}

.system-grid,
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.system-grid article,
.feature-grid article,
.contact-panel {
  border: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.78);
  box-shadow: 0 16px 38px rgba(23, 63, 52, 0.08);
}

.system-grid article {
  padding: 30px;
}

.system-grid span {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 24px;
  border: 1px solid rgba(159, 75, 50, 0.42);
  border-radius: 50%;
  color: var(--cinnabar);
  font-size: 24px;
  font-weight: 800;
}

.feature-section {
  background:
    linear-gradient(rgba(13, 95, 72, 0.06), rgba(13, 95, 72, 0.06)),
    var(--paper);
}

.feature-grid article {
  min-height: 220px;
  padding: 28px;
  border-top: 4px solid var(--jade);
}

.feature-grid article:nth-child(2n) {
  border-top-color: var(--moss);
}

.feature-grid article:nth-child(3n) {
  border-top-color: var(--cinnabar);
}

.download-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 34px;
  margin: 0 clamp(20px, 5vw, 80px);
  padding: clamp(42px, 6vw, 72px);
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(23, 63, 52, 0.96), rgba(4, 153, 111, 0.88)),
    url("assets-brand-mark.svg") right -80px center / 360px no-repeat;
}

.download-band h2,
.download-band p,
.download-band .eyebrow {
  color: var(--white);
}

.download-band p {
  max-width: 620px;
  margin-bottom: 0;
  color: rgba(255, 253, 247, 0.78);
}

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

.download-actions a {
  min-width: 150px;
  padding: 13px 18px;
  border: 1px solid rgba(255, 253, 247, 0.24);
  border-radius: 14px;
  background: rgba(255, 253, 247, 0.1);
}

.download-actions small,
.download-actions strong {
  display: block;
}

.download-actions small {
  margin-bottom: 4px;
  color: rgba(255, 253, 247, 0.66);
  font-size: 12px;
}

.download-actions strong {
  font-size: 18px;
}

.qr {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  width: 98px;
  height: 98px;
  padding: 12px;
  background: var(--white);
}

.qr span {
  background: var(--pine);
}

.about-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.72fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.about-section > div p {
  max-width: 780px;
}

.contact-panel {
  padding: 30px;
}

.contact-panel h3 {
  margin-bottom: 22px;
}

.contact-panel p {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 12px;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.contact-panel strong {
  color: var(--pine);
}

.contact-panel a {
  color: var(--jade-deep);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 5vw, 80px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
  }

  .site-header nav {
    display: none;
  }

  .hero,
  .about-section,
  .download-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .system-grid,
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-visual {
    min-height: 560px;
  }

  .download-actions {
    flex-wrap: wrap;
  }
}

@media (max-width: 680px) {
  .site-header {
    gap: 14px;
    padding: 12px 16px;
  }

  .brand {
    min-width: 0;
  }

  .brand img {
    width: 42px;
    height: 42px;
  }

  .brand small {
    display: none;
  }

  .nav-cta {
    min-height: 40px;
    padding: 0 14px;
    font-size: 14px;
  }

  .section,
  .section-band {
    padding: 58px 18px;
  }

  .hero::before {
    inset: 12px;
  }

  h1 {
    font-size: 40px;
  }

  .proof-points,
  .system-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    display: grid;
  }

  .hero-visual {
    min-height: 520px;
  }

  .moon-seal {
    width: 82px;
    height: 82px;
    font-size: 40px;
    right: 0;
  }

  .phone {
    min-height: 520px;
    padding: 24px;
  }

  .download-band {
    margin: 0 18px;
    padding: 34px 22px;
  }

  .download-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .qr {
    grid-column: 1 / -1;
  }

  .contact-panel p {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .site-footer {
    display: grid;
  }

  .site-footer nav {
    flex-wrap: wrap;
    gap: 14px;
  }
}