@font-face {
  font-family: "LXGW ZhenKai";
  src: url("/fonts/LXGWZhenKai.ttf") format("truetype");
  font-display: swap;
}

:root {
  color-scheme: light;
  --hub-ink: #17211f;
  --hub-muted: #5d6b66;
  --hub-line: #d8e4df;
  --hub-soft: #f4faf7;
  --hub-soft-2: #eef4f0;
  --hub-brand: #116a57;
  --hub-brand-dark: #0d4d40;
  --hub-accent: #d2872d;
  --hub-paper: #fffcf7;
  --hub-panel: rgba(255, 255, 255, 0.96);
  --hub-shadow: 0 22px 68px rgba(18, 35, 30, 0.12);
  --hub-radius: 18px;
  --hub-display: "LXGW ZhenKai", "Songti SC", "STSong", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.hub-body {
  margin: 0;
  color: var(--hub-ink);
  background:
    radial-gradient(circle at top left, rgba(17, 106, 87, 0.08), transparent 28%),
    radial-gradient(circle at top right, rgba(210, 135, 45, 0.09), transparent 22%),
    linear-gradient(180deg, #fffdf9 0%, #f7fbf8 100%);
  font:
    16px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", Arial, sans-serif;
}

.hub-body a {
  color: inherit;
  text-decoration: none;
}

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

.hub-wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hub-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 252, 247, 0.88);
  border-bottom: 1px solid rgba(216, 228, 223, 0.9);
  backdrop-filter: blur(16px);
}

.hub-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 72px;
}

.hub-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
}

.hub-brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  object-fit: cover;
}

.hub-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--hub-muted);
  font-size: 14px;
}

.hub-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--hub-brand), var(--hub-brand-dark));
  color: #fff;
  font-weight: 800;
  box-shadow: 0 14px 34px rgba(17, 106, 87, 0.22);
}

.hub-breadcrumb {
  border-bottom: 1px solid rgba(216, 228, 223, 0.88);
  background: rgba(244, 250, 247, 0.92);
  color: var(--hub-muted);
  font-size: 13px;
}

.hub-breadcrumb .hub-wrap {
  padding: 10px 0;
}

.hub-breadcrumb a {
  color: var(--hub-brand);
}

.hub-hero {
  padding: 72px 0 52px;
}

.hub-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.78fr);
  gap: 28px;
  align-items: center;
}

.hub-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid rgba(17, 106, 87, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--hub-brand-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.hub-title,
.hub-section h2,
.hub-article h1,
.hub-prose h2,
.hub-prose h3 {
  font-family: var(--hub-display);
  font-weight: 400;
}

.hub-title {
  margin: 18px 0 16px;
  font-size: clamp(36px, 5.4vw, 64px);
  line-height: 1.08;
}

.hub-lead {
  max-width: 760px;
  margin: 0 0 24px;
  color: var(--hub-muted);
  font-size: clamp(17px, 2.2vw, 21px);
}

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

.hub-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--hub-line);
  border-radius: 999px;
  font-weight: 800;
}

.hub-btn.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--hub-brand), var(--hub-brand-dark));
  color: #fff;
}

.hub-btn.secondary {
  background: rgba(255, 255, 255, 0.96);
  color: var(--hub-ink);
}

.hub-proof-grid,
.hub-card-grid,
.hub-link-grid,
.hub-qa-grid {
  display: grid;
  gap: 16px;
}

.hub-proof-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 24px;
}

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

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

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

.hub-card,
.hub-proof,
.hub-panel,
.hub-link-card,
.hub-qa-card {
  border: 1px solid var(--hub-line);
  border-radius: var(--hub-radius);
  background: var(--hub-panel);
  box-shadow: var(--hub-shadow);
}

.hub-proof,
.hub-card,
.hub-link-card,
.hub-qa-card {
  padding: 20px;
}

.hub-proof strong,
.hub-card h3,
.hub-link-card h3,
.hub-qa-card h3 {
  display: block;
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.3;
}

.hub-proof span,
.hub-card p,
.hub-link-card p,
.hub-qa-card p {
  color: var(--hub-muted);
  font-size: 15px;
}

.hub-visual {
  overflow: hidden;
}

.hub-visual img {
  aspect-ratio: 4 / 3;
  width: 100%;
  object-fit: cover;
}

.hub-visual-note {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 18px;
}

.hub-visual-note div {
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--hub-soft);
  font-size: 14px;
  font-weight: 800;
}

.hub-section {
  padding: 26px 0 56px;
}

.hub-section-head {
  max-width: 760px;
  margin-bottom: 20px;
}

.hub-section-kicker {
  color: var(--hub-accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hub-section h2 {
  margin: 8px 0 10px;
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.16;
}

.hub-section p {
  color: var(--hub-muted);
}

.hub-list,
.hub-prose ul,
.hub-prose ol {
  margin: 16px 0 0;
  padding-left: 22px;
}

.hub-list li,
.hub-prose li {
  margin-bottom: 10px;
}

.hub-panel {
  padding: 26px;
}

.hub-panel.alt {
  background: linear-gradient(180deg, rgba(17, 106, 87, 0.07), rgba(255, 255, 255, 0.95));
}

.hub-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hub-chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--hub-line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--hub-muted);
  font-size: 14px;
  font-weight: 700;
}

.hub-article {
  padding: 36px 0 64px;
}

.hub-article-shell {
  max-width: 860px;
  margin: 0 auto;
}

.hub-article h1 {
  margin: 0 0 12px;
  font-size: clamp(32px, 4.4vw, 50px);
  line-height: 1.14;
}

.hub-article-meta {
  margin-bottom: 22px;
  color: var(--hub-muted);
  font-size: 14px;
}

.hub-cover {
  margin-bottom: 28px;
  border: 1px solid var(--hub-line);
  border-radius: var(--hub-radius);
  overflow: hidden;
  box-shadow: var(--hub-shadow);
}

.hub-cover img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
}

.hub-prose {
  color: var(--hub-ink);
}

.hub-prose p {
  margin: 0 0 18px;
}

.hub-prose h2 {
  margin: 34px 0 12px;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.18;
}

.hub-prose h3 {
  margin: 24px 0 10px;
  font-size: 24px;
  line-height: 1.2;
}

.hub-callout {
  margin: 26px 0;
  padding: 18px 20px;
  border-left: 4px solid var(--hub-accent);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(210, 135, 45, 0.08), rgba(255, 255, 255, 0.96));
}

.hub-related {
  margin-top: 34px;
}

.hub-related a {
  color: var(--hub-brand);
  font-weight: 700;
}

.hub-cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 26px 28px;
  border: 1px solid rgba(16, 55, 46, 0.14);
  border-radius: var(--hub-radius);
  background: linear-gradient(135deg, #18382f, #234b40);
  color: #fff;
  box-shadow: 0 22px 56px rgba(16, 55, 46, 0.22);
}

.hub-cta-panel p {
  color: rgba(255, 255, 255, 0.82);
}

.hub-cta-panel .hub-btn.secondary {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.hub-footer {
  margin-top: 40px;
  padding: 34px 0 48px;
  background: #132522;
  color: #d6ebe4;
}

.hub-footer strong {
  display: block;
  margin-bottom: 10px;
}

.hub-footer p {
  margin: 0;
  color: rgba(214, 235, 228, 0.72);
}

.hub-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
}

.hub-footer a {
  color: #fff;
}

@media (max-width: 900px) {
  .hub-nav {
    display: none;
  }

  .hub-hero-grid,
  .hub-card-grid,
  .hub-qa-grid,
  .hub-link-grid,
  .hub-cta-panel {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .hub-wrap {
    width: min(100% - 24px, 1120px);
  }

  .hub-topbar-inner {
    min-height: 64px;
  }

  .hub-proof-grid,
  .hub-visual-note {
    grid-template-columns: 1fr;
  }

  .hub-actions,
  .hub-cta-panel .hub-actions {
    flex-direction: column;
  }

  .hub-actions .hub-btn,
  .hub-cta-panel .hub-btn,
  .hub-cta {
    width: 100%;
  }
}