.doc-global-header,
.doc-global-header * {
  box-sizing: border-box;
}

.doc-global-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  width: 100vw;
  margin: 0 0 24px calc(50% - 50vw);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(16px);
}

.doc-global-header__inner {
  display: flex;
  align-items: center;
  width: min(1180px, calc(100% - 32px));
  min-height: 56px;
  margin: 0 auto;
}

.doc-global-header__back {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid #dbeafe;
  border-radius: 8px;
  background: #eff6ff;
  color: #1d4ed8;
  font: 700 14px/1.2 -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  text-decoration: none;
}

.doc-global-header__back:hover {
  border-color: #bfdbfe;
  background: #dbeafe;
  color: #1e40af;
}

@media (max-width: 640px) {
  .doc-global-header {
    margin-bottom: 18px;
  }

  .doc-global-header__inner {
    min-height: 52px;
  }
}