:root {
  --bg: #f6f4ef;
  --bg-card: #fffcf7;
  --text: #2a3328;
  --text-muted: #667064;
  --brand: #6b8f5a;
  --brand-dark: #4f6d42;
  --accent: #c4a574;
  --line: rgba(42, 51, 40, 0.1);
  --shadow: 0 12px 40px rgba(42, 51, 40, 0.08);
  --radius: 16px;
  --container: 1080px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(107, 143, 90, 0.12), transparent 42%),
    radial-gradient(circle at 20% 80%, rgba(196, 165, 116, 0.12), transparent 35%),
    var(--bg);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  line-height: 1.7;
}

a {
  color: var(--brand-dark);
  text-decoration: none;
}

a:hover {
  color: var(--brand);
}

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

.container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(246, 244, 239, 0.88);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

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

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

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text-muted);
}

.nav-link.is-active,
.nav-link:hover {
  background: rgba(107, 143, 90, 0.12);
  color: var(--brand-dark);
}

.hero {
  padding: 72px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
}

.hero-copy h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.hero-copy .lead {
  margin: 0 0 24px;
  color: var(--text-muted);
  font-size: 18px;
  max-width: 36em;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover {
  background: var(--brand-dark);
  color: #fff;
}

.btn-ghost {
  border-color: var(--line);
  background: var(--bg-card);
  color: var(--text);
}

.mini-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  text-align: center;
}

.mini-card h2 {
  margin: 0 0 8px;
  font-size: 20px;
}

.mini-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.mini-qr {
  width: 180px;
  height: 180px;
  margin: 20px auto 12px;
  border-radius: 12px;
  border: 1px dashed var(--line);
  display: grid;
  place-items: center;
  color: var(--text-muted);
  font-size: 13px;
  background: rgba(107, 143, 90, 0.05);
}

.mini-qr img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}

.section {
  padding: 28px 0 56px;
}

.section-head {
  margin-bottom: 24px;
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: 28px;
}

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

.pillar-grid,
.info-grid,
.topic-grid {
  display: grid;
  gap: 18px;
}

.pillar-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.topic-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pillar-card,
.info-card,
.topic-card,
.legal-card,
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.pillar-card,
.topic-card {
  padding: 24px;
}

.pillar-card h3,
.topic-card h3 {
  margin: 0 0 10px;
  color: var(--brand-dark);
}

.pillar-card p,
.topic-card p {
  margin: 0;
  color: var(--text-muted);
}

.page-main {
  padding: 48px 0 64px;
}

.page-title {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 40px);
}

.page-intro {
  margin: 0 0 32px;
  color: var(--text-muted);
  max-width: 48em;
}

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

.info-card {
  padding: 24px;
}

.info-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.info-card p,
.info-card li {
  color: var(--text-muted);
}

.info-card ul {
  margin: 0;
  padding-left: 18px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.contact-card {
  padding: 24px;
}

.contact-card h3 {
  margin: 0 0 12px;
}

.contact-card p,
.contact-card li {
  margin: 0 0 8px;
  color: var(--text-muted);
}

.contact-card ul {
  margin: 0;
  padding-left: 18px;
}

.legal-card {
  padding: 32px;
}

.legal-card h2 {
  margin: 28px 0 12px;
  font-size: 20px;
}

.legal-card h2:first-child {
  margin-top: 0;
}

.legal-card p,
.legal-card li {
  color: var(--text-muted);
}

.legal-card ul,
.legal-card ol {
  padding-left: 20px;
}

.notice {
  margin: 0 0 24px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(196, 165, 116, 0.15);
  color: #6f5732;
  font-size: 14px;
}

.site-footer {
  margin-top: 32px;
  border-top: 1px solid var(--line);
  background: rgba(255, 252, 247, 0.72);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
  padding: 40px 0 24px;
}

.footer-brand {
  margin: 0 0 8px;
  font-weight: 700;
}

.footer-desc,
.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
}

.footer-title {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 700;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  padding: 18px 0 28px;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 13px;
}

.icp-placeholder {
  color: #a67c52;
}

@media (max-width: 900px) {
  .hero-grid,
  .pillar-grid,
  .topic-grid,
  .info-grid,
  .contact-grid,
  .footer-grid,
  .values-strip,
  .brand-structure {
    grid-template-columns: 1fr;
  }
}

/* —— 关于页品牌内容 —— */
.about-hero {
  padding: 56px 0 32px;
  text-align: center;
}

.about-claim {
  margin: 0 0 16px;
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.2;
  letter-spacing: 0.08em;
  color: var(--brand-dark);
}

.about-lead {
  margin: 0 auto;
  max-width: 42em;
  color: var(--text-muted);
  font-size: 18px;
}

.about-section {
  padding: 20px 0 28px;
}

.about-section--compact {
  padding-bottom: 20px;
}

.about-section h2 {
  margin: 0 0 16px;
  font-size: 24px;
  color: var(--brand-dark);
}

.about-section h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.about-block {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 32px;
  margin-bottom: 18px;
}

.about-block p {
  margin: 0;
  color: var(--text-muted);
}

.about-block p + p {
  margin-top: 12px;
}

.about-emphasis {
  font-size: 20px;
  line-height: 1.6;
  color: var(--text) !important;
  font-weight: 600;
}

.about-oath {
  border-left: 4px solid var(--brand);
  background: linear-gradient(90deg, rgba(107, 143, 90, 0.1), transparent);
}

.about-oath p {
  color: var(--text) !important;
  font-size: 18px;
  line-height: 1.8;
}

.about-layers {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--text-muted);
}

.about-layers li + li {
  margin-top: 6px;
}

.values-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  padding: 20px 22px;
  margin-bottom: 0;
}

.value-item {
  min-width: 0;
}

.value-item-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
}

.value-item-text strong {
  color: var(--brand-dark);
  font-weight: 700;
  margin-right: 0.35em;
}

.brand-pillars {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.brand-pillars span {
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(107, 143, 90, 0.12);
  color: var(--brand-dark);
  font-size: 14px;
}

.brand-structure {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
  margin: 0;
}

.brand-structure dt {
  font-weight: 700;
  color: var(--text);
}

.brand-structure dd {
  margin: 4px 0 16px;
  color: var(--text-muted);
}

.about-cta {
  text-align: center;
  padding: 16px 0 48px;
}

@media (max-width: 900px) {
  .values-strip {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 18px 20px;
  }

  .value-item-text {
    font-size: 15px;
  }
}