:root {
  --bg: #faf8f6;
  --blush: #f5ebe6;
  --beige: #efe6df;
  --surface: #ffffff;
  --text: #1c1917;
  --text-muted: #57534e;
  --primary: #8b5e4b;
  --primary-dark: #6f4a3a;
  --outline: #d6d3d1;
  --shadow: rgba(28, 25, 23, 0.08);
  --radius: 20px;
  --radius-lg: 28px;
  --max: 1120px;
  --font: "Inter", "Noto Sans SC", "Noto Sans TC", "Noto Sans JP", "Noto Sans KR", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, #fff 40%, var(--blush) 100%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(250, 248, 246, 0.82);
  border-bottom: 1px solid rgba(214, 211, 209, 0.6);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-icon {
  border-radius: 9px;
  box-shadow: 0 6px 18px var(--shadow);
}

.lang-switcher {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--outline);
  border-radius: 999px;
}

.lang-switcher button {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
}

.lang-switcher button.active {
  background: var(--primary);
  color: #fff;
}

.hero {
  padding: 56px 0 32px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--beige);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  margin: 0 0 28px;
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 24px rgba(139, 94, 75, 0.24);
}

.btn-primary:hover {
  transform: translateY(-1px);
  background: var(--primary-dark);
}

.phone-frame {
  position: relative;
  width: min(100%, 320px);
  margin-inline: auto;
  padding: 10px;
  border-radius: 34px;
  background: linear-gradient(145deg, #fff, var(--beige));
  box-shadow:
    0 24px 60px rgba(28, 25, 23, 0.14),
    inset 0 0 0 1px rgba(255, 255, 255, 0.8);
}

.phone-frame img {
  width: 100%;
  border-radius: 26px;
  background: #fff;
}

.section-head {
  text-align: center;
  margin-bottom: 48px;
}

.section-head h2 {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
}

.features {
  padding: 24px 0 72px;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 72px;
}

.feature-row.reverse .feature-copy {
  order: 2;
}

.feature-row.reverse .feature-visual {
  order: 1;
}

.feature-tag {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.feature-copy h3 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  letter-spacing: -0.02em;
}

.feature-copy p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.02rem;
  max-width: 30rem;
}

.highlights {
  padding: 24px 0 80px;
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.highlight-card {
  padding: 24px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(214, 211, 209, 0.7);
  box-shadow: 0 10px 30px var(--shadow);
}

.highlight-icon {
  font-size: 24px;
  margin-bottom: 12px;
}

.highlight-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.highlight-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.cta {
  padding: 0 0 88px;
}

.cta-inner {
  text-align: center;
  padding: 48px 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #fff, var(--blush));
  border: 1px solid rgba(214, 211, 209, 0.8);
  box-shadow: 0 20px 50px var(--shadow);
}

.cta-inner h2 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.cta-inner p {
  margin: 0 0 24px;
  color: var(--text-muted);
}

.site-footer {
  padding: 28px 0 40px;
  border-top: 1px solid rgba(214, 211, 209, 0.7);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-brand {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

.footer-links a:hover {
  text-decoration: underline;
}

@media (max-width: 960px) {
  .hero-grid,
  .feature-row {
    grid-template-columns: 1fr;
  }

  .feature-row.reverse .feature-copy,
  .feature-row.reverse .feature-visual {
    order: initial;
  }

  .highlight-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-visual {
    order: -1;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 32px;
  }

  .highlight-grid {
    grid-template-columns: 1fr;
  }

  .phone-frame {
    width: min(100%, 280px);
  }
}