/* Shared by the model homepage and integrated showcase pages. */
:root {
  --a15-site-width: 1160px;
  --a15-site-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}
.a15-site-header, .a15-footer {
  box-sizing: border-box;
  font-family: var(--a15-site-font);
  line-height: 1.6;
  letter-spacing: 0;
}
.a15-site-header *, .a15-footer * { box-sizing: border-box; }
.a15-site-header { width: 100%; margin: 0; padding: 0; }
.a15-nav-links a { color: inherit; }
.a15-nav-links a[aria-current="page"], .a15-nav-links a[aria-current="location"] { color: #2563eb; }
.a15-footer { display: block; margin: 0; }
.a15-footer a { color: inherit; }
#demos, .demo-card[id] { scroll-margin-top: 100px; }
    .a15-site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid rgba(148, 163, 184, 0.32);
      background: rgba(248, 250, 252, 0.9);
      backdrop-filter: blur(12px);
      box-shadow: 0 8px 28px rgba(15, 23, 42, 0.05);
    }
    .a15-nav {
      width: min(var(--a15-site-width), calc(100% - 32px));
      min-height: 62px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: flex-start;
    }
    .a15-nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-start;
      flex-wrap: wrap;
      gap: 18px;
      color: #475569;
      font-size: 14px;
      font-weight: 650;
    }
    .a15-nav-links a {
      text-decoration: none;
      white-space: nowrap;
    }
    .a15-nav-links a:hover { color: #2563eb; }
    .a15-nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 36px;
      padding: 0 12px;
      border: 1px solid #1d4ed8;
      border-radius: 8px;
      background: #1d4ed8;
      color: #fff !important;
    }

    .a15-footer {
      padding: 24px 0 32px;
      color: #64748b;
      font-size: 13px;
      text-align: center;
      border-top: 1px solid #e2e8f0;
      background: #fff;
    }
    .a15-footer-inner {
      width: min(var(--a15-site-width), calc(100% - 32px));
      margin: 0 auto;
      display: grid;
      gap: 14px;
      justify-items: center;
    }
    .a15-footer-inner p {
      margin: 0;
      line-height: 1.6;
    }
    .a15-visitor-panel {
      width: min(280px, 100%);
      display: grid;
      gap: 4px;
      justify-items: center;
      padding: 6px 8px;
      border: 1px solid #dbe3ef;
      border-radius: 8px;
      background: #f8fafc;
    }
    .a15-visitor-copy {
      display: grid;
      gap: 2px;
    }
    .a15-visitor-title {
      color: #0f172a;
      font-weight: 800;
    }
    .a15-visitor-note {
      color: #64748b;
      font-size: 10px;
    }
    .a15-visitor-embed {
      width: 100%;
      min-height: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 3px;
      border: 1px dashed #cbd5e1;
      border-radius: 8px;
      background: #fff;
    }
    .a15-visitor-embed img,
    .a15-visitor-embed iframe {
      max-width: 180px;
      border: 0;
    }
    .a15-visitor-embed img {
      height: auto;
      display: block;
    }

@media (max-width: 760px) {
  .a15-nav { width: min(100% - 20px, var(--a15-site-width)); min-height: 56px; }
  .a15-nav-links { justify-content: flex-start; gap: 8px 12px; padding: 10px 0; font-size: 13px; }
  .a15-nav-cta { min-height: 32px; padding: 0 10px; }
}