/**
 * 顶栏两行主题扩展变量（由 header-theme-shared.js 注入）
 */
.site-header .header-row--topbar,
.site-header .header-row--r1 {
  gap: var(--hdr-row-gap, unset);
}

.site-header .site-logo-img {
  width: var(--hdr-r1-logo-size, 48px);
  height: var(--hdr-r1-logo-size, 48px);
}

.site-header .header-row--topbar .nav-history-btn--compact {
  font-size: var(--hdr-r1-history-fs, inherit);
  color: var(--hdr-r1-history-color, var(--hdr-row-text, var(--nav-theme-text, inherit)));
}

.site-header .header-topbar-tools,
.site-header .header-topbar-tools__inner,
.site-header .header-r2-inner {
  gap: var(--hdr-r1-tools-gap, var(--hdr-row-gap, unset));
  font-weight: var(--hdr-r1-tools-fw, inherit);
  letter-spacing: var(--hdr-r1-tools-ls, inherit);
}

.site-header .header-search-trigger {
  padding: var(--hdr-r1-search-pad, unset);
}

.site-header .nav-auth-entry.nav-auth-entry--text,
.site-header .nav-auth-entry.btn-sm,
.site-header a.nav-auth-entry {
  padding: var(--hdr-r1-login-pad, unset);
}

.site-header .header-lang-toggle__link {
  padding: var(--hdr-r1-lang-pad, unset);
}

.site-header .header-search-trigger__icon {
  width: var(--hdr-r1-search-icon, 1.35em);
  height: var(--hdr-r1-search-icon, 1.35em);
}

.site-header .header-search-panel--open .header-search-bar {
  gap: var(--hdr-r2-search-gap, 8px);
}

.site-header .nav-auth-entry {
  font-size: var(
    --hdr-r1-login-fs,
    var(--hdr-r1-tools-fs, var(--hdr-row-font-size, var(--nav-theme-tools-font-size, inherit)))
  );
  font-weight: var(--hdr-r1-login-fw, var(--hdr-r1-tools-fw, inherit));
}

.site-header .nav-auth-block--user .btn-sm,
.site-header .nav-customer-link {
  font-size: var(
    --hdr-r1-account-fs,
    var(--hdr-r1-tools-fs, var(--hdr-row-font-size, var(--nav-theme-tools-font-size, inherit)))
  );
}

.site-header .header-lang-toggle__link {
  font-size: var(
    --hdr-r1-lang-fs,
    var(--hdr-r1-tools-fs, var(--hdr-row-font-size, var(--nav-theme-tools-font-size, inherit)))
  );
  font-weight: var(--hdr-r1-lang-fw, var(--hdr-r1-tools-fw, 400));
}

.site-header .header-row--r3 .header-nav-main .nav-links {
  gap: var(--hdr-r3-link-gap, var(--hdr-row-gap, unset));
}

.site-header .header-row--r3 .nav-links a {
  font-size: var(
    --hdr-row-font-size,
    var(--hdr-r3-link-fs, var(--site-font-nav-links, var(--nav-theme-font-size, clamp(14px, 3.5vw, 17px))))
  );
  font-weight: var(--hdr-row-font-weight, var(--hdr-r3-link-weight, inherit));
  letter-spacing: var(--hdr-row-letter-spacing, var(--hdr-r3-link-ls, inherit));
  color: var(--hdr-r3-link-color, var(--hdr-row-text, var(--nav-theme-text, var(--text))));
  padding: var(--hdr-r3-link-py, 4px) var(--hdr-r3-link-px, 10px);
}

.site-header .header-row--r3 .nav-links a:hover {
  background: var(--hdr-r3-hover-bg, var(--nav-hover-bg, rgba(0, 0, 0, 0.06)));
}

.site-header .header-row--r3 .nav-dropdown {
  background: var(--hdr-r3-dropdown-bg, var(--header-menu-bg, var(--header-bg, #fff)));
}

/* —— 后台两行外观编辑器 —— */
.admin-hrt-loading {
  margin: 0;
  font-size: 13px;
  color: #64748b;
}

.admin-hrt-load-error {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px dashed #fca5a5;
  background: #fef2f2;
}

.admin-hrt-section-highlight {
  border: 1px solid color-mix(in srgb, var(--primary, #2563eb) 35%, var(--border));
  border-radius: 12px;
  padding: 16px 18px;
  background: color-mix(in srgb, var(--primary, #2563eb) 4%, var(--panel));
}

.admin-hrt-host {
  margin-top: 8px;
}

.admin-hrt-preview {
  margin-top: 18px;
  padding: 14px 16px 16px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--primary, #2563eb) 3%, var(--card));
}

.admin-hrt-preview-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.admin-hrt-preview-title {
  margin: 0;
  flex: 1 1 240px;
  font-size: 13px;
  line-height: 1.5;
  color: #64748b;
}

.admin-hrt-preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-hrt-preview-frame-wrap {
  display: flex;
  justify-content: center;
  padding: 10px;
  border-radius: 10px;
  background: #e2e8f0;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--border) 80%, transparent);
}

.admin-hrt-preview-frame {
  width: 100%;
  max-width: 390px;
  height: min(72vh, 560px);
  min-height: 360px;
  border: 0;
  border-radius: 8px;
  background: var(--bg, #fff);
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.12);
}

.admin-hrt-toolbar {
  margin-bottom: 14px;
}

.admin-hrt-toolbar-hint {
  margin: 0 0 10px;
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
}

.admin-hrt-viewport-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.admin-hrt-viewport-tab {
  padding: 10px 16px;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.admin-hrt-viewport-tab.is-active {
  border-color: var(--primary, #2563eb);
  background: color-mix(in srgb, var(--primary, #2563eb) 14%, var(--card));
  color: var(--primary, #2563eb);
}

.admin-hrt-base-row-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 4px;
}

.admin-hrt-base-row-tab {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--input-bg, var(--card));
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.admin-hrt-base-row-tab.is-active {
  border-color: var(--primary, #2563eb);
  background: color-mix(in srgb, var(--primary, #2563eb) 10%, var(--card));
  color: var(--primary, #2563eb);
}

.admin-hrt-row-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 100%;
}

.admin-hrt-row-tab {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 12px;
  line-height: 1.25;
  font-weight: 600;
  cursor: pointer;
  white-space: normal;
  text-align: center;
  max-width: 11rem;
}

.admin-hrt-row-tab.is-active {
  border-color: var(--primary, #2563eb);
  background: color-mix(in srgb, var(--primary, #2563eb) 12%, var(--card));
  color: var(--primary, #2563eb);
}

.admin-hrt-card-hint {
  margin: 0 0 12px;
  font-size: 12px;
  color: #64748b;
  line-height: 1.45;
}

.admin-hrt-sec-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.admin-hrt-sec-btn {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 12px;
  cursor: pointer;
  color: var(--text);
}

.admin-hrt-sec-btn.is-active {
  border-color: var(--primary, #2563eb);
  background: color-mix(in srgb, var(--primary, #2563eb) 10%, var(--card));
}

.admin-hrt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px 16px;
}

.admin-hrt-field {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
}

.admin-hrt-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.admin-hrt-ctrl-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.admin-hrt-ctrl-row--color .admin-hrt-color-text {
  flex: 1;
  min-width: 0;
}

.admin-hrt-range {
  flex: 1;
  min-width: 80px;
  accent-color: var(--primary, #2563eb);
}

.admin-hrt-num {
  width: 64px;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 13px;
}

.admin-hrt-num--wide {
  width: 100%;
}

.admin-hrt-unit {
  font-size: 12px;
  color: #64748b;
  min-width: 1.5rem;
}

.admin-hrt-color-picker {
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  background: transparent;
}

.admin-hrt-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.admin-hrt-preset-btn {
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel);
  font-size: 11px;
  cursor: pointer;
  color: var(--text);
}

.admin-hrt-preset-btn:hover {
  border-color: var(--primary, #2563eb);
}

.admin-hrt-adv {
  width: 100%;
  margin-top: 8px;
  padding: 6px 8px;
  font-size: 11px;
  border-radius: 8px;
  border: 1px dashed var(--border);
  background: var(--input-bg);
  color: var(--muted, #64748b);
}

.admin-hrt-pad-axis {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.admin-hrt-pad-label {
  font-size: 11px;
  color: #64748b;
  min-width: 2rem;
}

.admin-hrt-select,
.admin-hrt-text {
  width: 100%;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
}