/* ============================================================
   站擎 · 统一页头 / 页脚
   ============================================================ */

:root {
  --zq-brand: var(--brand, #22C55E);
  --zq-brand-deep: var(--brand-deep, #15803D);
  --zq-brand-hi: var(--brand-hi, #16A34A);
  --zq-bg: var(--bg, #F7FBF8);
  --zq-surface: #FFFFFF;
  --zq-border: #E4EDE7;
  --zq-border-hi: #CFDDD4;
  --zq-text: #0F1A14;
  --zq-text-dim: #55665C;
  --zq-text-mute: #8A968D;
  --zq-nav-h: 124px;
}

/* ==================== 页头 ==================== */
.zq-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--zq-nav-h);
  background: rgba(247, 251, 248, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--zq-border);
}

.zq-nav-inner {
  max-width: 100%;
  height: 100%;
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 48px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.zq-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity 0.2s;
}

.zq-brand:hover { opacity: 0.85; }

.zq-brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--zq-brand), var(--zq-brand-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 4px 12px -3px rgba(var(--brand-rgb, 34,197,94), 0.5);
  flex-shrink: 0;
}

.zq-brand-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--zq-text);
  letter-spacing: -0.02em;
}

.zq-nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.zq-nav-link {
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--zq-text-dim);
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.15s;
}

.zq-nav-link:hover {
  color: var(--zq-brand-deep);
  background: rgba(var(--brand-rgb, 34,197,94), 0.07);
}

.zq-nav-link.active {
  color: var(--zq-brand-deep);
  background: rgba(var(--brand-rgb, 34,197,94), 0.12);
  font-weight: 600;
}

.zq-nav-user {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.zq-nav-credits {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(var(--brand-rgb, 34,197,94), 0.1), rgba(var(--brand-rgb, 34,197,94), 0.03));
  border: 1px solid rgba(var(--brand-rgb, 34,197,94), 0.3);
  color: var(--zq-brand-deep);
  font-size: 12.5px;
  font-weight: 600;
  text-decoration: none;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  transition: all 0.2s;
}

.zq-nav-credits:hover {
  background: linear-gradient(135deg, rgba(var(--brand-rgb, 34,197,94), 0.15), rgba(var(--brand-rgb, 34,197,94), 0.05));
  transform: translateY(-1px);
}

.zq-nav-email {
  font-size: 12.5px;
  color: var(--zq-text-mute);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.zq-nav-btn {
  padding: 7px 14px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  border: 1px solid;
  white-space: nowrap;
}

.zq-nav-btn.ghost {
  background: transparent;
  border-color: var(--zq-border-hi);
  color: var(--zq-text-dim);
}

.zq-nav-btn.ghost:hover {
  border-color: rgba(var(--brand-rgb, 34,197,94), 0.4);
  color: var(--zq-brand-deep);
  background: rgba(var(--brand-rgb, 34,197,94), 0.04);
}

.zq-nav-btn.primary {
  background: linear-gradient(180deg, var(--zq-brand), var(--zq-brand-hi));
  border-color: rgba(21, 128, 61, 0.5);
  color: #FFFFFF;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 3px 10px -3px rgba(var(--brand-rgb, 34,197,94), 0.5);
}

.zq-nav-btn.primary:hover {
  background: linear-gradient(180deg, #34D27A, var(--zq-brand));
  transform: translateY(-1px);
}

.zq-nav-skeleton {
  display: inline-block;
  width: 80px;
  height: 24px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(var(--brand-rgb, 34,197,94),0.05), rgba(var(--brand-rgb, 34,197,94),0.12), rgba(var(--brand-rgb, 34,197,94),0.05));
  background-size: 200% 100%;
  animation: zq-shimmer 1.4s ease-in-out infinite;
}

@keyframes zq-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ==================== 页脚 ==================== */
.zq-footer {
  margin-top: 80px;
  padding: 48px 24px 32px;
  background: linear-gradient(180deg, #F7FBF8 0%, #EFF7F2 100%);
  border-top: 1px solid var(--zq-border);
}

.zq-footer-inner {
  max-width: 100%;
  margin: 0 auto;
}

.zq-footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.zq-footer-col h4 {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--zq-text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 16px;
}

.zq-footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.zq-footer-col li {
  margin-bottom: 9px;
}

.zq-footer-col a {
  font-size: 13px;
  color: var(--zq-text-dim);
  text-decoration: none;
  transition: color 0.15s;
}

.zq-footer-col a:hover {
  color: var(--zq-brand-deep);
}

.zq-footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.zq-footer-brand .zq-brand-mark {
  width: 34px;
  height: 34px;
  font-size: 15px;
}

.zq-footer-brand-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--zq-text);
  letter-spacing: -0.02em;
}

.zq-footer-tagline {
  font-size: 13px;
  color: var(--zq-text-dim);
  line-height: 1.75;
  margin: 0 0 12px;
  max-width: 320px;
}

.zq-footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.zq-footer-badge {
  font-size: 10.5px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 5px;
  background: rgba(var(--brand-rgb, 34,197,94), 0.1);
  color: var(--zq-brand-deep);
  border: 1px solid rgba(var(--brand-rgb, 34,197,94), 0.2);
}

.zq-footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--zq-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--zq-text-mute);
}

.zq-footer-bottom-links {
  display: flex;
  gap: 20px;
}

.zq-footer-bottom-links a {
  color: var(--zq-text-mute);
  text-decoration: none;
  transition: color 0.15s;
}

.zq-footer-bottom-links a:hover {
  color: var(--zq-brand-deep);
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
  .zq-nav-inner { padding: 0 16px; gap: 16px; }
  .zq-brand-name { display: none; }
  .zq-nav-email { display: none; }
  .zq-nav-credits { font-size: 11.5px; padding: 4px 9px; }

  .zq-footer { padding: 32px 16px 24px; margin-top: 48px; }
  .zq-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-bottom: 28px;
  }
  .zq-footer-col:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 480px) {
  .zq-nav-links { gap: 0; }
  .zq-nav-link { padding: 6px 8px; font-size: 12.5px; }
}

/* ==================== 避免 body 顶部被 sticky nav 遮挡 ==================== */
body.zq-has-nav .container,
body.zq-has-nav > main {
  position: relative;
  z-index: 5;
  padding-top: 8px;
}

/* 打印时隐藏 */
@media print {
  .zq-nav, .zq-footer { display: none !important; }
}


/* ==================== 双行导航 ==================== */
.zq-nav-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 0 6px;
  border-bottom: 1px solid var(--zq-border);
}

.zq-nav-bottom {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 2px 0 8px;
}

.zq-nav-top .zq-brand { flex-shrink: 0; }

.zq-nav-top .zq-theme-switcher {
  margin-left: auto;
  margin-right: 8px;
}

.zq-nav-top .zq-nav-user {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.zq-nav-bottom .zq-nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

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


/* ==================== 桌面：单行滚动 ==================== */
@media (max-width: 1024px) {
  :root { --zq-nav-h: 108px; }
  .zq-nav-inner { padding: 0 20px; gap: 4px; }
  .zq-nav-link { font-size: 13px; padding: 6px 10px; }
}


/* ==================== 平板：双行、链接换行 ==================== */
@media (max-width: 768px) {
  :root { --zq-nav-h: auto; }

  .zq-nav {
    height: auto;
    min-height: 0;
  }
  .zq-nav-inner {
    height: auto;
    padding: 8px 16px 12px;
    gap: 6px;
  }
  .zq-nav-top {
    padding: 4px 0 6px;
  }
  .zq-nav-bottom {
    padding: 4px 0 0;
  }

  /* 关键：链接容器改为换行，不再横向滚动 */
  .zq-nav-bottom .zq-nav-links {
    flex-wrap: wrap;
    overflow-x: visible;
    gap: 6px;
  }

  /* 每个链接变成小胶囊 */
  .zq-nav-link {
    font-size: 12.5px;
    padding: 5px 11px;
    background: rgba(var(--brand-rgb, 34,197,94), 0.06);
    border: 1px solid rgba(var(--brand-rgb, 34,197,94), 0.16);
    border-radius: 999px;
  }
  .zq-nav-link:hover {
    background: rgba(var(--brand-rgb, 34,197,94), 0.12);
    border-color: rgba(var(--brand-rgb, 34,197,94), 0.3);
  }
  .zq-nav-link.active {
    background: rgba(var(--brand-rgb, 34,197,94), 0.16);
    border-color: rgba(var(--brand-rgb, 34,197,94), 0.45);
  }

  .zq-brand-name { display: none; }
  .zq-nav-email { display: none; }
  .zq-nav-credits { font-size: 11.5px; padding: 4px 9px; }

  /* body 顶部不再留固定高度（因为导航高度自适应） */
  body.zq-has-nav .container,
  body.zq-has-nav > main {
    padding-top: 4px;
  }

  /* 页脚 */
  .zq-footer { padding: 32px 16px 24px; margin-top: 48px; }
  .zq-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-bottom: 28px;
  }
  .zq-footer-col:first-child { grid-column: 1 / -1; }
}


/* ==================== 手机：更紧凑的换行 ==================== */
@media (max-width: 480px) {
  .zq-nav-inner { padding: 6px 12px 10px; }
  .zq-nav-bottom .zq-nav-links { gap: 4px; }
  .zq-nav-link {
    font-size: 12px;
    padding: 4px 9px;
  }
  .zq-nav-credits { font-size: 11px; padding: 3px 8px; }
}


/* 打印时隐藏 */
@media print {
  .zq-nav, .zq-footer { display: none !important; }
}

/* ============================================================
   站擎 · 页头铺满全屏 + 导航均分
   ============================================================ */

/* 页头铺满：取消 max-width 限制，边距随屏宽变化 */
.zq-nav-inner {
  max-width: none;
  width: 100%;
  padding-left: clamp(16px, 3vw, 48px);
  padding-right: clamp(16px, 3vw, 48px);
  box-sizing: border-box;
}

/* 桌面（>=1025px）：导航项均分整行、单行不换行 */
.zq-nav-bottom .zq-nav-links {
  justify-content: space-between;
  overflow-x: visible;
  flex-wrap: nowrap;
}
.zq-nav-bottom .zq-nav-link {
  flex: 1 1 0;
  text-align: center;
  font-size: clamp(12px, 0.95vw, 14px);
  padding-left: 4px;
  padding-right: 4px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.zq-nav-top { justify-content: space-between; }

/* 平板（<=1024px）：字号更小，仍单行均分 */
@media (max-width: 1024px) {
  .zq-nav-bottom .zq-nav-link {
    font-size: clamp(11.5px, 1.2vw, 13px);
    padding: 5px 2px;
  }
}

/* 手机（<=768px）：换行 + 胶囊，取消均分 */
@media (max-width: 768px) {
  .zq-nav-bottom .zq-nav-links {
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    overflow-x: visible;
  }
  .zq-nav-bottom .zq-nav-link {
    flex: 0 0 auto;
    font-size: 12.5px;
    padding: 5px 11px;
    border-radius: 999px;
    background: rgba(var(--brand-rgb, 34,197,94), 0.06);
    border: 1px solid rgba(var(--brand-rgb, 34,197,94), 0.16);
  }
  .zq-nav-bottom .zq-nav-link:hover,
  .zq-nav-bottom .zq-nav-link.active {
    background: rgba(var(--brand-rgb, 34,197,94), 0.14);
    border-color: rgba(var(--brand-rgb, 34,197,94), 0.35);
  }
}

/* 超窄屏（<=480px）：更紧凑 */
@media (max-width: 480px) {
  .zq-nav-inner { padding-left: 12px; padding-right: 12px; }
  .zq-nav-bottom .zq-nav-links { gap: 4px; }
  .zq-nav-bottom .zq-nav-link { font-size: 12px; padding: 4px 9px; }
}

/* 打印时隐藏 */
@media print {
  .zq-nav, .zq-footer { display: none !important; }
}