:root {
  --paper: #f3efe4;
  --ink: #223127;
  --muted: #5f6c63;
  --brand: #2a8f62;
  --line: #d8ceba;
  --card: #fffdf8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 8%, rgba(42, 143, 98, 0.12), transparent 36%),
    radial-gradient(circle at 92% 92%, rgba(190, 126, 52, 0.1), transparent 34%),
    var(--paper);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  backdrop-filter: blur(8px);
  background: rgba(243, 239, 228, 0.95);
  border-bottom: 1px solid rgba(34, 49, 39, 0.12);
}

.nav-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  font-family: "ZCOOL XiaoWei", serif;
  font-size: 1.3rem;
  color: var(--ink);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink);
  border-radius: 999px;
  padding: 7px 10px;
}

.nav-links a:hover {
  background: rgba(42, 143, 98, 0.12);
}

.nav-links a.active {
  background: var(--brand);
  color: #fff;
}

.lang-switch {
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  display: inline-flex;
}

.lang-btn {
  border: 0;
  padding: 6px 12px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 16px 42px;
  display: grid;
  gap: 18px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  box-shadow: 0 10px 20px rgba(34, 49, 39, 0.08);
}

.hero {
  padding: 18px;
}

.hero h1 {
  margin: 0 0 8px;
  font-family: "ZCOOL XiaoWei", serif;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.hero p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.faq-panel {
  padding: 14px;
  display: grid;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 10px 12px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
}

.faq-item p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.site-footer {
  margin-top: 20px;
  border-top: 1px solid rgba(34, 49, 39, 0.16);
  background: rgba(255, 255, 255, 0.52);
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 16px 16px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
}

.footer-links a {
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.9rem;
}

.footer-links a:hover {
  background: rgba(42, 143, 98, 0.1);
}

.footer-links a.active {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.footer-copyright {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

@media (max-width: 700px) {
  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-inner {
    padding: 12px 16px 14px;
  }
}