:root {
  color-scheme: light;
  --bg: #f7f6f2;
  --surface: #ffffff;
  --surface-strong: #f0f5f2;
  --text: #202324;
  --muted: #626b6a;
  --line: #d9dfdc;
  --accent: #176b5d;
  --accent-strong: #0f4e45;
  --rust: #a45134;
  --gold: #b5852d;
  --shadow: 0 24px 80px rgba(32, 35, 36, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

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, 64px);
  border-bottom: 1px solid rgba(217, 223, 220, 0.78);
  background: rgba(247, 246, 242, 0.9);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-size: 18px;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 18px;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 28px);
  color: var(--muted);
  font-size: 15px;
}

.top-nav a {
  padding: 6px 0;
}

.top-nav a:hover {
  color: var(--accent-strong);
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  align-items: center;
  gap: clamp(28px, 6vw, 72px);
  min-height: calc(100vh - 72px);
  padding: clamp(48px, 8vw, 96px) clamp(20px, 5vw, 64px) clamp(40px, 6vw, 72px);
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--rust);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin: 0;
  max-width: 680px;
  font-size: clamp(46px, 8vw, 96px);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-text {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 24px);
}

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

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 700;
}

.primary-action {
  background: var(--accent);
  color: #fff;
}

.secondary-action {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--accent-strong);
}

.hero-visual {
  margin: 0;
  min-width: 0;
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section {
  padding: clamp(48px, 7vw, 84px) clamp(20px, 5vw, 64px);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 26px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: 0;
}

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

.record-item {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 30px;
  border-radius: 8px;
  background: var(--surface-strong);
  color: var(--accent-strong);
  font-weight: 800;
}

.record-item h3 {
  margin: 28px 0 10px;
  font-size: 22px;
}

.record-item p {
  margin: 0;
  color: var(--muted);
}

.muted-section {
  background: #eaf0ed;
}

.link-list {
  display: grid;
  gap: 12px;
  max-width: 980px;
}

.link-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 86px;
  padding: 18px 20px;
  border: 1px solid rgba(15, 78, 69, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
}

.link-row:hover {
  border-color: rgba(15, 78, 69, 0.36);
  background: #fff;
}

.link-row span {
  display: grid;
  gap: 4px;
}

.link-row strong {
  font-size: 20px;
}

.link-row em {
  color: var(--muted);
  font-style: normal;
}

.link-row b {
  color: var(--accent-strong);
  font-weight: 700;
  text-align: right;
}

.about-section p {
  max-width: 900px;
  margin: 0;
  color: var(--muted);
  font-size: 20px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(20px, 5vw, 64px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer a:hover {
  color: var(--accent-strong);
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-visual {
    max-width: 560px;
  }

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

  .link-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .link-row b {
    text-align: left;
  }
}

@media (max-width: 560px) {
  .top-nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero-actions {
    flex-direction: column;
  }

  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
  }
}