/* 顶栏站点品牌 — 写在 nav-controls 内，确保 head-meta 全站加载（不依赖 style.css 是否同步） */
.site-brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 4px 10px 4px 4px;
  border-radius: 12px;
  text-decoration: none !important;
  color: inherit;
  border: 1px solid transparent;
  background: transparent;
  box-shadow: none;
  flex-shrink: 0;
}

.site-brand:hover,
.footer-brand:hover {
  text-decoration: none !important;
  border-color: color-mix(in srgb, var(--brand-indigo, #6366f1) 16%, transparent);
  background: color-mix(in srgb, var(--brand-indigo, #6366f1) 4%, transparent);
}

.site-brand-logo-wrap,
.footer-logo-wrap {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  background: transparent;
}

.site-brand-logo,
.footer-logo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-brand-text,
.footer-brand-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  line-height: 1.15;
  min-width: 0;
}

.site-brand-name,
.footer-brand-name {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: #0f172a;
  text-decoration: none !important;
}

.site-brand-tld,
.footer-brand-tld {
  font-weight: 700;
  color: #6366f1;
}

.site-brand-tag,
.footer-brand-tag {
  display: block;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.2;
  color: #64748b;
  text-decoration: none !important;
  white-space: nowrap;
  max-width: 11em;
  overflow: hidden;
  text-overflow: ellipsis;
}

[data-theme="dark"] .site-brand-name,
.theme-dark .site-brand-name,
[data-theme="dark"] .footer-brand-name,
.theme-dark .footer-brand-name {
  color: #f1f5f9;
}

[data-theme="dark"] .site-brand-tag,
.theme-dark .site-brand-tag,
[data-theme="dark"] .footer-brand-tag,
.theme-dark .footer-brand-tag {
  color: #94a3b8;
}

.main-nav .site-brand,
.main-nav .footer-brand {
  flex-shrink: 0;
}

/* 顶栏右侧控件 v3 — 简洁图标，无白底光效 */
.nav-controls.nav-controls-v3 {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border-radius: 16px;
  background: color-mix(in srgb, #fff 58%, transparent);
  border: 1px solid color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 16%, transparent);
  box-shadow: 0 1px 0 color-mix(in srgb, #fff 70%, transparent) inset;
  flex-shrink: 0;
  min-width: max-content;
  overflow: visible;
}

[data-theme="dark"] .nav-controls.nav-controls-v3 {
  background: rgba(10, 16, 36, 0.38);
  border-color: color-mix(in srgb, #67E8F9 18%, transparent);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

/* 顶栏主题按钮：完全静止，不受全局 theme-toggle 动效影响 */
.nav-controls-v3 .theme-toggle-btn,
[data-theme="light"] .nav-controls-v3 .theme-toggle-btn,
[data-theme="dark"] .nav-controls-v3 .theme-toggle-btn,
.theme-light .nav-controls-v3 .theme-toggle-btn,
.theme-dark .nav-controls-v3 .theme-toggle-btn {
  animation: none !important;
  transform: none !important;
  box-shadow: none !important;
  background: transparent !important;
  border: 1px solid transparent !important;
  overflow: hidden;
}

.nav-controls-v3 .theme-toggle-btn::before,
.nav-controls-v3 .theme-toggle-btn::after {
  display: none !important;
  animation: none !important;
  content: none !important;
}

.nav-controls-v3 .theme-toggle-btn:hover,
.nav-controls-v3 .theme-toggle-btn:active,
.nav-controls-v3 .theme-toggle-btn:focus,
.nav-controls-v3 .theme-toggle-btn:focus-visible,
[data-theme="light"] .nav-controls-v3 .theme-toggle-btn:hover,
[data-theme="light"] .nav-controls-v3 .theme-toggle-btn:active,
.theme-light .nav-controls-v3 .theme-toggle-btn:hover,
.theme-light .nav-controls-v3 .theme-toggle-btn:active {
  animation: none !important;
  transform: none !important;
  box-shadow: none !important;
  background: color-mix(in srgb, var(--brand-indigo) 8%, transparent) !important;
  border-color: color-mix(in srgb, var(--brand-indigo) 14%, transparent) !important;
}

.nav-controls-v3 .theme-toggle-btn .theme-icon,
.nav-controls-v3 .theme-toggle-btn:hover .theme-icon,
.nav-controls-v3 .theme-toggle-btn:active .theme-icon,
[data-theme="light"] .nav-controls-v3 .theme-toggle-btn .theme-icon,
.theme-light .nav-controls-v3 .theme-toggle-btn .theme-icon {
  transform: none !important;
  transition: none !important;
  filter: none !important;
}

.nav-controls-v3 .theme-toggle-btn::before,
.nav-controls-v3 .lang-btn-main::before,
.nav-controls-v3 .nav-ctrl-lang::before,
.nav-controls-v3 .lang-btn-main::after,
.nav-controls-v3 .nav-ctrl-lang::after {
  display: none !important;
  content: none !important;
}

[data-theme="light"] .nav-controls-v3 .theme-toggle-btn,
.theme-light .nav-controls-v3 .theme-toggle-btn {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  animation: none;
}

[data-theme="light"] .nav-controls-v3 .theme-toggle-btn:hover,
.theme-light .nav-controls-v3 .theme-toggle-btn:hover {
  background: color-mix(in srgb, var(--brand-indigo) 8%, transparent);
  border-color: color-mix(in srgb, var(--brand-indigo) 14%, transparent);
  box-shadow: none;
  transform: none;
}

/* 语言按钮：全透明，无外层圈（覆盖 style.css 亮/暗主题旧样式） */
.nav-controls-v3 .lang-switch,
.nav-controls-v3 .lang-switch-container {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
}

.nav-controls-v3 .lang-btn-main,
.nav-controls-v3 .nav-ctrl-lang,
[data-theme="light"] .nav-controls-v3 .lang-btn-main,
.theme-light .nav-controls-v3 .lang-btn-main,
[data-theme="dark"] .nav-controls-v3 .lang-btn-main,
.theme-dark .nav-controls-v3 .lang-btn-main,
[data-theme="light"] .nav-controls-v3 .nav-ctrl-lang,
.theme-light .nav-controls-v3 .nav-ctrl-lang {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  animation: none !important;
}

.nav-controls-v3 .lang-btn-main:hover,
.nav-controls-v3 .lang-btn-main.active,
.nav-controls-v3 .nav-ctrl-lang:hover,
.nav-controls-v3 .nav-ctrl-lang.active,
.nav-controls-v3 .lang-switch.active .nav-ctrl-lang,
[data-theme="light"] .nav-controls-v3 .lang-btn-main:hover,
.theme-light .nav-controls-v3 .lang-btn-main:hover,
[data-theme="light"] .nav-controls-v3 .lang-btn-main.active,
.theme-light .nav-controls-v3 .lang-btn-main.active,
[data-theme="dark"] .nav-controls-v3 .lang-btn-main:hover,
.theme-dark .nav-controls-v3 .lang-btn-main:hover,
[data-theme="dark"] .nav-controls-v3 .lang-btn-main.active,
.theme-dark .nav-controls-v3 .lang-btn-main.active {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  transform: none !important;
}

.nav-controls-v3 .nav-ctrl-flag,
.nav-controls-v3 .lang-flag-icon {
  border: none !important;
  box-shadow: none !important;
  border-radius: 50%;
  background: transparent !important;
}

.nav-controls-v3 .nav-controls-divider {
  width: 1px;
  height: 16px;
  margin: 0;
  background: var(--border-tertiary);
}

.nav-controls-v3 .nav-ctrl-btn {
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  box-sizing: border-box;
  flex-shrink: 0;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nav-controls-v3 .nav-ctrl-btn:hover {
  background: color-mix(in srgb, var(--brand-indigo) 8%, transparent);
  border-color: color-mix(in srgb, var(--brand-indigo) 14%, transparent);
  transform: none;
}

.nav-controls-v3 .lang-btn-main.nav-ctrl-btn:hover,
.nav-controls-v3 .nav-ctrl-lang.nav-ctrl-btn:hover {
  background: transparent !important;
  border-color: transparent !important;
}

.nav-controls-v3 .theme-toggle-btn:hover .theme-icon {
  transform: none;
}

.nav-controls-v3 .nav-ctrl-btn:active {
  background: color-mix(in srgb, var(--brand-indigo) 12%, transparent);
}

.nav-controls-v3 .nav-ctrl-icon {
  width: 18px;
  height: 18px;
  display: block;
  object-fit: contain;
  background: transparent !important;
}

.nav-controls-v3 .nav-ctrl-flag {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  object-fit: cover;
}

/* 下拉：仅淡入，无位移 */
.nav-controls-v3 .lang-dropdown {
  right: -10px;
  min-width: 148px;
  padding: 4px;
  border-radius: 10px;
  border: 1px solid var(--glass-border-bright);
  background: var(--glass-surface);
  box-shadow: 0 12px 32px var(--shadow-2);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transform: none !important;
  transition: opacity 0.15s ease, visibility 0.15s ease !important;
  z-index: 10150 !important;
}

.nav-controls-v3 .lang-dropdown.lang-dropdown--portal {
  position: fixed !important;
}

.nav-controls-v3 .lang-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.12s ease;
}

.nav-controls-v3 .lang-dropdown-item:hover {
  background: color-mix(in srgb, var(--brand-indigo) 6%, transparent);
}

.nav-controls-v3 .lang-dropdown-item.active {
  background: color-mix(in srgb, var(--brand-indigo) 10%, transparent);
  color: var(--brand-indigo);
}

.nav-controls-v3 .lang-dropdown-item.active::after {
  display: none;
}

.nav-controls-v3 .lang-dropdown-item-flag {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: transparent !important;
}

.nav-controls-v3 .lang-dropdown-item-name {
  line-height: 1.2;
}

/* 关闭旧版 shine / ring 特效 */
.nav-controls-v3 .lang-btn-main::before,
.nav-controls-v3 .nav-ctrl-lang::before,
.nav-controls-v3 .lang-btn-main::after,
.nav-controls-v3 .nav-ctrl-lang::after {
  display: none !important;
  content: none !important;
}

@media (max-width: 720px) {
  .nav-controls-v3 .nav-ctrl-btn {
    width: 38px;
    height: 38px;
    min-width: 38px;
    min-height: 38px;
  }
}

/* ── Nav links v2：分段胶囊 + 薄荷玻璃 ── */
.main-nav .nav-center {
  flex: 0 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-width: 0;
}

.main-nav .nav-links-wrap {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  min-width: 0;
  flex: 0 0 auto;
  width: max-content;
  max-width: 100%;
  overflow: visible;
}

.main-nav .nav-controls.nav-controls-v3 {
  flex-shrink: 0;
}

@media (min-width: 769px) {
  .nav-links.nav-links-v2 {
    overflow: visible;
  }

  .main-nav .nav-container {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    gap: 14px;
    width: fit-content;
    max-width: calc(100% - 32px);
    margin: 0 auto;
    padding-left: 12px;
    padding-right: 12px;
  }

  .main-nav .site-brand {
    flex-shrink: 0;
    min-width: 0;
  }

  .main-nav .nav-center {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-width: 0;
  }

  .main-nav .nav-links-wrap {
    flex: 0 0 auto;
  }

  .main-nav .nav-controls.nav-controls-v3 {
    flex-shrink: 0;
    margin-left: 0;
  }
}

.nav-links.nav-links-v2 {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  flex: 0 1 auto;
  width: max-content;
  max-width: 100%;
  min-width: 0;
  padding: 4px;
  overflow-x: auto;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  overscroll-behavior-x: contain;
  border-radius: 16px;
  background: color-mix(in srgb, #fff 42%, transparent);
  border: 1px solid color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 18%, transparent);
  box-shadow:
    0 1px 0 color-mix(in srgb, #fff 80%, transparent) inset,
    0 8px 22px color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 8%, transparent);
  backdrop-filter: blur(var(--glass-blur, 32px)) saturate(var(--glass-saturate, 1.75));
  -webkit-backdrop-filter: blur(var(--glass-blur, 32px)) saturate(var(--glass-saturate, 1.75));
}

.nav-links.nav-links-v2::-webkit-scrollbar {
  display: none;
}

[data-theme="light"] .nav-links.nav-links-v2 {
  background: color-mix(in srgb, #fff 48%, transparent);
  border-color: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 16%, transparent);
  box-shadow:
    0 1px 0 var(--glass-highlight) inset,
    0 6px 18px color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 7%, transparent);
}

[data-theme="dark"] .nav-links.nav-links-v2 {
  background: rgba(10, 16, 36, 0.38);
  border-color: color-mix(in srgb, #67E8F9 18%, transparent);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.06) inset,
    0 8px 24px rgba(0, 0, 0, 0.32);
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  min-height: 36px;
  max-height: 36px;
  padding: 0 12px 0 6px;
  border-radius: 12px;
  text-decoration: none;
  font-family: 'Outfit', 'DM Sans', system-ui, sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--text-secondary);
  white-space: nowrap;
  position: relative;
  box-sizing: border-box;
  border: 1px solid transparent;
  background: transparent;
  box-shadow: none;
  transform: none;
  outline: none;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

.nav-pill:not(.nav-pill-toolbox),
.nav-pill:not(.nav-pill-toolbox):hover,
.nav-pill:not(.nav-pill-toolbox):active,
.nav-pill:not(.nav-pill-toolbox).active,
.nav-pill:not(.nav-pill-toolbox):focus,
.nav-pill:not(.nav-pill-toolbox):focus-visible {
  border-width: 1px;
  border-style: solid;
  box-shadow: none;
  transform: none;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

/* 纯文字 pill */
.nav-pill:not(:has(.nav-pill-icon)) {
  padding: 0 16px;
  gap: 0;
}

.nav-pill-label {
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1;
  padding: 0;
  text-rendering: optimizeLegibility;
}

.nav-pill::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  border-radius: 2px;
  transform: translateX(-50%);
  background: var(--nav-accent, var(--brand-primary));
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.nav-pill:hover:not(.nav-pill-toolbox) {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 10%, transparent);
  border-color: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 14%, transparent);
  box-shadow: none;
  transform: none;
}

[data-theme="dark"] .nav-pill:hover:not(.nav-pill-toolbox) {
  background: color-mix(in srgb, #67E8F9 12%, transparent);
}

.nav-pill.active:not(.nav-pill-toolbox) {
  color: #4F5EE8;
  background: color-mix(in srgb, #fff 86%, transparent);
  border-color: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 28%, transparent);
  box-shadow: 0 2px 10px color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 14%, transparent);
  transform: none;
}

.nav-pill.active:not(.nav-pill-toolbox)::after {
  display: none;
}

.nav-pill.active.nav-accent-blue:not(.nav-pill-toolbox),
.nav-pill.active.nav-accent-green:not(.nav-pill-toolbox),
.nav-pill.active.nav-accent-yellow:not(.nav-pill-toolbox),
.nav-pill.active.nav-accent-red:not(.nav-pill-toolbox) {
  background: color-mix(in srgb, #fff 86%, transparent);
  border-color: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 28%, transparent);
}

[data-theme="dark"] .nav-pill.active:not(.nav-pill-toolbox) {
  color: #99f6e4;
  background: color-mix(in srgb, #134e4a 70%, transparent);
  border-color: color-mix(in srgb, #67E8F9 32%, transparent);
  box-shadow: 0 2px 12px rgba(45, 212, 191, 0.12);
}

.nav-pill.active:not(.nav-pill-toolbox) .nav-pill-label,
.nav-pill.active.nav-accent-blue:not(.nav-pill-toolbox) .nav-pill-label,
.nav-pill.active.nav-accent-green:not(.nav-pill-toolbox) .nav-pill-label,
.nav-pill.active.nav-accent-yellow:not(.nav-pill-toolbox) .nav-pill-label,
.nav-pill.active.nav-accent-red:not(.nav-pill-toolbox) .nav-pill-label {
  color: inherit;
}

.nav-pill-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  width: 28px;
  height: 28px;
  min-width: 28px;
  min-height: 28px;
  border-radius: 50%;
  flex-shrink: 0;
  overflow: hidden;
  background: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 16%, transparent);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.nav-pill-icon-img {
  display: block;
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.nav-accent-blue { --nav-accent: #0ea5e9; }
.nav-accent-green { --nav-accent: #10b981; }
.nav-accent-yellow { --nav-accent: #f59e0b; }
.nav-accent-amber { --nav-accent: #d97706; }
.nav-accent-red { --nav-accent: #ef4444; }

.nav-accent-blue .nav-pill-icon,
.nav-accent-green .nav-pill-icon,
.nav-accent-yellow .nav-pill-icon,
.nav-accent-amber .nav-pill-icon,
.nav-accent-red .nav-pill-icon {
  background: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 10%, transparent);
  border-color: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 16%, transparent);
}

.nav-pill.active.nav-accent-blue .nav-pill-icon,
.nav-pill.active.nav-accent-green .nav-pill-icon,
.nav-pill.active.nav-accent-yellow .nav-pill-icon,
.nav-pill.active.nav-accent-amber .nav-pill-icon,
.nav-pill.active.nav-accent-red .nav-pill-icon {
  background: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 18%, transparent);
  border-color: color-mix(in srgb, var(--brand-live-teal, #5B6CFF) 28%, transparent);
}

.nav-pill:hover .nav-pill-icon,
.nav-pill.active .nav-pill-icon {
  transform: none;
}

.nav-pill-sep {
  width: 1px;
  height: 22px;
  margin: 0 8px;
  flex-shrink: 0;
  background: linear-gradient(
    180deg,
    transparent,
    rgba(99, 102, 241, 0.22) 50%,
    transparent
  );
  border-radius: 1px;
}

[data-theme="dark"] .nav-pill-sep {
  background: linear-gradient(
    180deg,
    transparent,
    rgba(129, 140, 248, 0.28) 50%,
    transparent
  );
}

/* 超级工具箱 — 青绿霓虹呼吸灯 */
@keyframes navToolboxBreath {
  0%, 100% {
    box-shadow:
      0 0 0 1px rgba(45, 212, 191, 0.28),
      0 0 8px rgba(13, 148, 136, 0.38),
      0 0 18px rgba(45, 212, 191, 0.18),
      inset 0 1px 0 rgba(255, 255, 255, 0.2);
  }
  50% {
    box-shadow:
      0 0 0 1.5px rgba(94, 234, 212, 0.72),
      0 0 16px rgba(20, 184, 166, 0.7),
      0 0 32px rgba(45, 212, 191, 0.42),
      inset 0 1px 0 rgba(255, 255, 255, 0.28);
  }
}

@keyframes navToolboxHaloPulse {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 1; }
}

@keyframes navToolboxSheen {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.85; }
}

.nav-pill-sep-toolbox {
  background: linear-gradient(
    180deg,
    transparent,
    rgba(99, 102, 241, 0.35) 50%,
    transparent
  );
}

[data-theme="dark"] .nav-pill-sep-toolbox {
  background: linear-gradient(
    180deg,
    transparent,
    rgba(129, 140, 248, 0.42) 50%,
    transparent
  );
}

.nav-pill-toolbox {
  --toolbox-solid: #5B6CFF;
  --toolbox-solid-hover: #6D7CFF;
  --toolbox-solid-active: #4F5EE8;
  position: relative;
  isolation: isolate;
  z-index: 1;
  gap: 6px;
  padding: 0 12px 0 6px;
  border-radius: 12px;
  height: 36px;
  min-height: 36px;
  max-height: 36px;
  border: 1px solid rgba(165, 180, 252, 0.55);
  background: var(--btn-gradient, linear-gradient(180deg, #6D7CFF 0%, #5B6CFF 48%, #4F5EE8 100%));
  color: #ffffff;
  font-weight: 500;
  animation: navToolboxBreath 2.6s ease-in-out infinite;
}

.nav-pill-toolbox::before {
  content: "";
  position: absolute;
  inset: -6px;
  z-index: -1;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 50%, rgba(91, 108, 255, 0.45), transparent 68%);
  animation: navToolboxHaloPulse 2.6s ease-in-out infinite;
}

.nav-pill-toolbox::after {
  content: "";
  position: absolute;
  inset: 1px;
  left: 1px;
  bottom: 1px;
  width: auto;
  height: auto;
  z-index: 0;
  border-radius: inherit;
  pointer-events: none;
  transform: none;
  opacity: 0.7;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.28) 0%, transparent 46%);
  animation: navToolboxSheen 2.6s ease-in-out infinite;
}

.nav-pill-toolbox .nav-pill-label {
  position: relative;
  z-index: 1;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.nav-pill-toolbox .nav-pill-icon {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.28);
}

.nav-pill-toolbox:hover {
  color: #ffffff;
  background: var(--btn-gradient-hover, linear-gradient(180deg, #8B97FF 0%, #6D7CFF 52%, #5B6CFF 100%));
  border-color: rgba(199, 210, 254, 0.85);
  transform: none;
  animation-duration: 1.5s;
}

.nav-pill-toolbox.active {
  color: #ffffff;
  background: var(--toolbox-solid-active);
  border-color: var(--toolbox-solid-active);
  transform: none;
}

.nav-pill-toolbox.active .nav-pill-label {
  color: #ffffff;
}

.nav-pill-toolbox.active .nav-pill-icon {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.36);
}

[data-theme="dark"] .nav-pill-toolbox {
  --toolbox-solid: #5B6CFF;
  --toolbox-solid-hover: #8B97FF;
  --toolbox-solid-active: #4F5EE8;
  color: #ffffff;
  border-color: color-mix(in srgb, #4F5EE8 55%, transparent);
}

[data-theme="dark"] .nav-pill-toolbox {
  border-color: rgba(165, 180, 252, 0.5);
}

[data-theme="dark"] .nav-pill-toolbox::before {
  background: radial-gradient(ellipse at 50% 50%, rgba(103, 232, 249, 0.4), transparent 70%);
}

[data-theme="light"] .nav-pill-toolbox {
  --toolbox-solid: #5B6CFF;
  --toolbox-solid-hover: #4F6EF7;
  --toolbox-solid-active: #3D54E0;
}

html.perf-lite .nav-pill-toolbox,
html.perf-lite .nav-pill-toolbox::before,
html.perf-lite .nav-pill-toolbox::after {
  animation: none !important;
}

@media (prefers-reduced-motion: reduce) {
  .nav-pill-toolbox,
  .nav-pill-toolbox::before,
  .nav-pill-toolbox::after {
    animation: none !important;
  }

  .nav-pill-toolbox::before {
    opacity: 0.7;
    transform: none;
  }

  .nav-pill-toolbox::after {
    opacity: 0.4;
    transform: none;
  }
}

.main-nav .nav-pill-toolbox,
.main-nav .nav-pill-toolbox:hover,
.main-nav .nav-pill-toolbox:active,
.main-nav .nav-pill-toolbox.active {
  gap: 6px !important;
  padding: 0 12px 0 6px !important;
  border-radius: 12px !important;
  height: 36px !important;
  min-height: 36px !important;
  max-height: 36px !important;
  border-width: 1px !important;
  border-style: solid !important;
  font-weight: 500 !important;
  transform: none !important;
  scale: none !important;
}

.main-nav .nav-pill-toolbox .nav-pill-label {
  font-weight: 500 !important;
  max-width: none !important;
  overflow: visible !important;
  text-overflow: clip !important;
  white-space: nowrap !important;
  -webkit-text-fill-color: currentColor !important;
  color: #ffffff !important;
}

/* 响应式：平板紧凑文字 */
@media (max-width: 900px) and (min-width: 769px) {
  .nav-pill:not(.nav-pill-toolbox) .nav-pill-label {
    font-size: 12px !important;
    max-width: 5.5em;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-pill-toolbox,
  .nav-pill-toolbox:hover,
  .nav-pill-toolbox.active {
    height: 40px;
    min-height: 40px;
    max-height: 40px;
    padding: 0 12px;
    gap: 0;
  }

  .nav-pill::after { display: none; }

  .nav-links.nav-links-v2 {
    gap: 8px;
    padding: 5px 8px 5px 7px;
  }

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

  .main-nav .nav-center {
    gap: 14px;
  }
}

/* 手机：双行导航 + 纯文字紧凑胶囊 */
@media (max-width: 768px) {
  .nav-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 6px;
    padding: 8px 10px !important;
  }

  .main-nav .nav-center {
    display: contents;
  }

  .main-nav .site-brand {
    order: 1;
    flex: 0 1 auto;
    min-width: 0;
  }

  .nav-controls.nav-controls-v3 {
    order: 2;
    margin-left: auto;
    flex: 0 0 auto;
    justify-content: flex-end;
  }

  .nav-links-wrap {
    order: 3;
    flex: 1 1 100%;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    gap: 10px;
    padding-right: 0;
  }

  .nav-links.nav-links-v2 {
    gap: 8px;
    padding: 4px 8px 4px 6px;
    border-radius: 14px;
  }

  .nav-pill-toolbox {
    flex: 0 0 auto;
    scroll-snap-align: start;
  }

  .nav-pill:not(.nav-pill-toolbox) .nav-pill-label {
    display: inline !important;
    font-size: 11px !important;
    font-weight: 600 !important;
    letter-spacing: 0.02em !important;
    max-width: 4.8em;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-pill-toolbox .nav-pill-label {
    font-size: 12px !important;
    max-width: none !important;
    overflow: visible !important;
    text-overflow: clip !important;
    white-space: nowrap !important;
    font-weight: 600 !important;
  }

  .nav-pill,
  .nav-pill:hover,
  .nav-pill.active {
    height: 38px;
    min-height: 38px;
    max-height: 38px;
    padding: 0 11px;
    gap: 0;
  }

  .nav-pill-toolbox,
  .nav-pill-toolbox:hover,
  .nav-pill-toolbox.active {
    height: 38px;
    min-height: 38px;
    max-height: 38px;
    padding: 0 11px;
    gap: 0;
  }

  .nav-pill-sep {
    display: block;
    height: 18px;
    margin: 0 4px;
  }

  .nav-pill.active:not(.nav-pill-toolbox) {
    background: color-mix(in srgb, var(--brand-indigo) 12%, transparent);
    border-color: color-mix(in srgb, var(--brand-indigo) 22%, transparent);
  }
}

@media (max-width: 640px) {
  .nav-links.nav-links-v2 {
    mask-image: linear-gradient(90deg, transparent 0, #000 6px, #000 calc(100% - 8px), transparent 100%);
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 6px, #000 calc(100% - 8px), transparent 100%);
  }

  .nav-pill {
    scroll-snap-align: start;
  }

  .nav-controls-v3 .nav-controls-divider {
    display: none;
  }

  .main-nav .site-brand .site-brand-tag {
    font-size: 8px;
    letter-spacing: 0.06em;
    max-width: 9em;
  }
}

@media (max-width: 520px) {
  .nav-container {
    padding: 6px 8px !important;
    gap: 6px;
  }

  .nav-links.nav-links-v2 {
    gap: 8px;
    padding: 4px 8px 4px 6px;
  }

  .nav-pill:not(.nav-pill-toolbox) .nav-pill-label {
    max-width: 4.2em !important;
  }
}

/* ── 导航 pill 尺寸锁定：选中/点击只变色，不跳尺寸 ── */
.main-nav .nav-pill:not(.nav-pill-toolbox),
.main-nav .nav-pill:not(.nav-pill-toolbox):hover,
.main-nav .nav-pill:not(.nav-pill-toolbox):active,
.main-nav .nav-pill:not(.nav-pill-toolbox).active,
.main-nav .nav-pill:not(.nav-pill-toolbox):focus,
.main-nav .nav-pill:not(.nav-pill-toolbox):focus-visible {
  box-sizing: border-box;
  height: 36px !important;
  min-height: 36px !important;
  max-height: 36px !important;
  padding: 0 12px 0 6px !important;
  gap: 6px !important;
  border-radius: 12px !important;
  transform: none !important;
  scale: none !important;
  outline: none !important;
  border-width: 1px !important;
  border-style: solid !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  line-height: 1 !important;
  -webkit-tap-highlight-color: transparent;
}

.main-nav .nav-pill:not(.nav-pill-toolbox) .nav-pill-label {
  font-size: 13px !important;
  font-weight: 500 !important;
  line-height: 1 !important;
  padding: 0 !important;
}

.main-nav .nav-pill:not(.nav-pill-toolbox) .nav-pill-icon,
.main-nav .nav-pill:not(.nav-pill-toolbox):hover .nav-pill-icon,
.main-nav .nav-pill:not(.nav-pill-toolbox):active .nav-pill-icon,
.main-nav .nav-pill:not(.nav-pill-toolbox).active .nav-pill-icon {
  flex-shrink: 0;
  transform: none !important;
  box-shadow: none !important;
}

@media (max-width: 900px) and (min-width: 769px) {
  .main-nav .nav-pill:not(.nav-pill-toolbox),
  .main-nav .nav-pill:not(.nav-pill-toolbox):hover,
  .main-nav .nav-pill:not(.nav-pill-toolbox):active,
  .main-nav .nav-pill:not(.nav-pill-toolbox).active {
    height: 40px !important;
    min-height: 40px !important;
    max-height: 40px !important;
    padding: 0 10px 0 6px !important;
    gap: 5px !important;
  }

  .main-nav .nav-pill-toolbox,
  .main-nav .nav-pill-toolbox:hover,
  .main-nav .nav-pill-toolbox.active {
    height: 40px !important;
    min-height: 40px !important;
    max-height: 40px !important;
    padding: 0 10px 0 6px !important;
    gap: 5px !important;
  }
}

@media (max-width: 768px) {
  .main-nav .nav-pill:not(.nav-pill-toolbox),
  .main-nav .nav-pill:not(.nav-pill-toolbox):hover,
  .main-nav .nav-pill:not(.nav-pill-toolbox):active,
  .main-nav .nav-pill:not(.nav-pill-toolbox).active {
    height: 38px !important;
    min-height: 38px !important;
    max-height: 38px !important;
    padding: 0 8px 0 5px !important;
    gap: 4px !important;
  }

  .main-nav .nav-pill-toolbox,
  .main-nav .nav-pill-toolbox:hover,
  .main-nav .nav-pill-toolbox.active {
    height: 38px !important;
    min-height: 38px !important;
    max-height: 38px !important;
    padding: 0 8px 0 5px !important;
    gap: 4px !important;
  }

  .main-nav .nav-pill:not(.nav-pill-toolbox) .nav-pill-label {
    display: inline !important;
    font-size: 11px !important;
    line-height: 1 !important;
  }
}

@media (max-width: 520px) {
  .main-nav .site-brand {
    gap: 6px !important;
    padding: 3px 6px 3px 3px !important;
    min-width: 0;
    max-width: 42vw;
  }

  .main-nav .site-brand .site-brand-logo-wrap {
    width: 28px !important;
    height: 28px !important;
  }

  .main-nav .site-brand .site-brand-name {
    font-size: 12px !important;
  }

  .main-nav .site-brand .site-brand-tag {
    font-size: 7px !important;
    letter-spacing: 0.05em;
    max-width: 100%;
  }
}