:root {
  --bg: #f7f2ea;
  --surface: #fffaf3;
  --ink: #203233;
  --muted: #6b7470;
  --teal: #1d5c63;
  --teal-2: #2b7a78;
  --coral: #c85f55;
  --gold: #e7a94f;
  --line: #e5d9c8;
  --shadow: 0 24px 70px rgba(35, 43, 41, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
}

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: 18px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(229, 217, 200, 0.75);
  background: rgba(247, 242, 234, 0.88);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 14px;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.1;
}

.brand strong {
  font-size: 18px;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

nav a:hover {
  color: var(--teal);
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 243, 0.72);
}

.language-switch button {
  min-width: 44px;
  min-height: 32px;
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.language-switch button.active {
  color: white;
  background: var(--teal);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.72fr);
  gap: clamp(28px, 6vw, 84px);
  align-items: center;
  min-height: calc(100vh - 82px);
  padding: clamp(56px, 8vw, 96px) clamp(20px, 6vw, 96px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(44px, 8vw, 86px);
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4.6vw, 54px);
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  margin: 14px 0 8px;
  font-size: 22px;
  line-height: 1.25;
}

.hero-lead {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 800;
  line-height: 1.2;
}

.button.primary {
  color: white;
  background: var(--teal);
}

.button.secondary {
  border: 1px solid var(--line);
  color: var(--teal);
  background: rgba(255, 250, 243, 0.7);
}

.button.large {
  min-width: min(100%, 320px);
}

.hero-panel,
.founder-card,
.quote-card,
.metrics article,
.product-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 243, 0.86);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 34px;
}

.panel-mark {
  display: flex;
  justify-content: center;
  padding: 18px 0 26px;
}

.panel-mark img {
  width: min(78%, 260px);
  max-height: 260px;
}

.panel-title {
  margin: 0 0 20px;
  font-size: 20px;
  font-weight: 850;
  line-height: 1.25;
  text-align: center;
}

.hero-panel ul,
.principles ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-panel li,
.principles li {
  padding: 14px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.section {
  padding: clamp(64px, 9vw, 112px) clamp(20px, 6vw, 96px);
}

.intro,
.principles,
.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: start;
  border-top: 1px solid var(--line);
}

.intro > p,
.contact p {
  margin: 36px 0 0;
  color: var(--muted);
  font-size: 20px;
}

.founder {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 24px;
}

.founder-card,
.quote-card {
  padding: clamp(28px, 4vw, 44px);
}

.founder-card p,
.quote-card p,
.product-grid p,
.traction-note {
  color: var(--muted);
}

blockquote {
  margin: 0 0 24px;
  color: var(--teal);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 850;
  line-height: 1.25;
}

.section-heading {
  max-width: 900px;
  margin-bottom: 34px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.metrics article {
  min-height: 150px;
  padding: 26px;
}

.metrics strong {
  display: block;
  color: var(--teal);
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.1;
}

.metrics span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
}

.traction-note {
  max-width: 980px;
  margin: 24px 0 0;
}

.product {
  border-top: 1px solid var(--line);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.product-grid article {
  padding: 26px;
}

.product-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: white;
  background: var(--coral);
  font-weight: 900;
}

.principles li {
  color: var(--ink);
}

.contact {
  align-items: center;
  background: var(--teal);
  color: white;
}

.contact .eyebrow,
.contact p {
  color: rgba(255, 250, 243, 0.76);
}

.contact .button.primary {
  background: var(--gold);
  color: #1b2d2c;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(20px, 6vw, 96px);
  color: var(--muted);
  font-size: 14px;
  background: #efe6d8;
}

@media (max-width: 980px) {
  .hero,
  .intro,
  .founder,
  .principles,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

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

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

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
  }

  h1 {
    font-size: 42px;
  }

  .metrics,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    padding: 24px;
  }
}