/* ============================================
   酒泉高分中心 - 布局样式（导航/页脚/面包屑）
   ============================================ */

/* ===== Navigation ===== */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(5, 15, 31, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(230, 241, 255, 0.1);
  transition: all var(--transition-base);
}

/* 浅色模式导航栏保持深色背景 */
html:not(.dark) .site-nav {
  background: rgba(5, 15, 31, 0.85);
  border-bottom: 1px solid rgba(230, 241, 255, 0.1);
}

/* 深色主题导航 */
html.dark .site-nav {
  background: rgba(5, 15, 31, 0.85);
}

.site-nav .nav-inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav .logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.125rem;
  font-weight: 600;
  color: #e6f1ff;
  flex-shrink: 0;
}

/* 深色模式时 logo 颜色使用变量 */
html.dark .site-nav .logo {
  color: var(--text-primary);
}

.site-nav .logo img {
  width: 60px;
  height: 60px;
  flex-shrink: 0;
}
.site-nav .logo span {
  letter-spacing: -0.01em;
  max-width: 180px;
  line-height: 1.4;
  font-size:15px;
}

.site-nav .nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
}

.site-nav .nav-links a {
  display: block;
  padding: 6px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: #8fa3bf;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

/* 深色模式时导航链接颜色使用变量 */
html.dark .site-nav .nav-links a {
  color: var(--text-secondary);
}

.site-nav .nav-links a:hover {
  color: #e6f1ff;
  background: rgba(230, 241, 255, 0.05);
}

.site-nav .nav-links a.active {
  color: #28e3a0;
  background: rgba(40, 227, 160, 0.15);
}

/* 导航下拉菜单 */
.site-nav .nav-links .nav-dropdown {
  position: relative;
}

.site-nav .nav-links .dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav .nav-links .dropdown-trigger::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid #8fa3bf;
  transition: transform var(--transition-fast);
}

html.dark .site-nav .nav-links .dropdown-trigger::after {
  border-top-color: var(--text-secondary);
}

.site-nav .nav-links .nav-dropdown:hover .dropdown-trigger::after {
  transform: rotate(180deg);
}

.site-nav .nav-links .dropdown-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(5, 15, 31, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(230, 241, 255, 0.1);
  padding: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  z-index: 1001;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

html:not(.dark) .site-nav .nav-links .dropdown-menu {
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.site-nav .nav-links .dropdown-menu .dropdown-inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
  display: flex;
  min-height: 360px;
  max-height: 80vh;
  overflow-y: scroll;
}

.site-nav .dropdown-sidebar {
  width: 20%;
  min-width: 180px;
  padding: var(--space-xl) var(--space-lg);
  border-right: 1px solid rgba(230, 241, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

html:not(.dark) .site-nav .dropdown-sidebar {
  border-right: 1px solid rgba(0, 0, 0, 0.08);
}

.site-nav .dropdown-sidebar .sidebar-item {
  display: block;
  width: 100%;
  padding: 12px 16px;
  text-align: left;
  font-size: 0.875rem;
  color: #8fa3bf;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

html:not(.dark) .site-nav .dropdown-sidebar .sidebar-item {
  color: #64748b;
}

html.dark .site-nav .dropdown-sidebar .sidebar-item {
  color: var(--text-secondary);
}

.site-nav .dropdown-sidebar .sidebar-item:hover {
  color: #e6f1ff;
  background: rgba(230, 241, 255, 0.05);
}

html:not(.dark) .site-nav .dropdown-sidebar .sidebar-item:hover {
  color: #1e293b;
  background: rgba(40, 227, 160, 0.08);
}

html.dark .site-nav .dropdown-sidebar .sidebar-item:hover {
  color: var(--text-primary);
}

.site-nav .dropdown-sidebar .sidebar-item.active {
  color: #28e3a0;
  background: rgba(40, 227, 160, 0.15);
}

html:not(.dark) .site-nav .dropdown-sidebar .sidebar-item.active {
  color: #0d9488;
  background: rgba(13, 148, 136, 0.12);
}

html.dark .site-nav .dropdown-sidebar .sidebar-item.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.site-nav .dropdown-content {
  flex: 1;
  padding: var(--space-xl) var(--space-lg)  var(--space-2xl) ;
  position: relative;
  align-items: flex-start; /* 让所有子元素在交叉轴上靠上对齐 */	
}

.site-nav .dropdown-content .content-panel {
  display: none;
  position: relative;
  top: var(--space-sm);
  left: var(--space-lg);
  right: var(--space-lg);
}

.site-nav .dropdown-content .content-panel.active {
  display: block;
}

.site-nav .dropdown-content .content-panel h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: #e6f1ff;
  margin-bottom: var(--space-xs);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(230, 241, 255, 0.1);
}
.site-nav .dropdown-content .content-panel h4  a{
  color: #1e293b;
  font-size: 0.95rem;
  font-weight: 600;
}

html:not(.dark) .site-nav .dropdown-content .content-panel h4 {
  color: #1e293b;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}
html:not(.dark) .site-nav .dropdown-content .content-panel h4  a{
  color: #1e293b;
}

html.dark .site-nav .dropdown-content .content-panel h4 {
  color: var(--text-primary);
}
html.dark .site-nav .dropdown-content .content-panel h4 a{
  color: var(--text-primary);
}
.site-nav .dropdown-content .content-panel ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.site-nav .dropdown-content .content-panel li {
  margin-bottom: 0;
}

.site-nav .dropdown-content .content-panel a {
  display: block;
  padding: 4px 12px;
  font-size: 0.8125rem;
  color: #8fa3bf;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: normal;
  line-height: 1.5;
  margin-bottom: 3px;
}

html:not(.dark) .site-nav .dropdown-content .content-panel a {
  color: #64748b;
}

html.dark .site-nav .dropdown-content .content-panel a {
  color: var(--text-secondary);
}

.site-nav .dropdown-content .content-panel a:hover {
  color: #e6f1ff;
  background: rgba(40, 227, 160, 0.15);
}

html:not(.dark) .site-nav .dropdown-content .content-panel a:hover {
  color: #1e293b;
  background: rgba(40, 227, 160, 0.08);
}

html.dark .site-nav .dropdown-content .content-panel a:hover {
  color: var(--text-primary);
  background: var(--accent-dim);
}

.site-nav .nav-links .nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav .dropdown-section {
  flex: 1;
  min-width: 240px;
}

.site-nav .dropdown-section h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: #e6f1ff;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(230, 241, 255, 0.1);
}

html.dark .site-nav .dropdown-section h4 {
  color: var(--text-primary);
}

.site-nav .dropdown-section ul {
  list-style: none;
}

.site-nav .dropdown-section li {
  margin-bottom: var(--space-sm);
}

.site-nav .dropdown-section a {
  display: block;
  padding: 8px 12px;
  font-size: 0.8125rem;
  color: #8fa3bf;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: normal;
  line-height: 1.5;
}

html.dark .site-nav .dropdown-section a {
  color: var(--text-secondary);
}

.site-nav .dropdown-section a:hover {
  color: #e6f1ff;
  background: rgba(40, 227, 160, 0.15);
}

html.dark .site-nav .dropdown-section a:hover {
  color: var(--text-primary);
  background: var(--accent-dim);
}



/* 深色模式时激活链接使用变量 */
html.dark .site-nav .nav-links a.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.site-nav .nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* 主题切换按钮专门样式 */
#themeToggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 14px;
  color: #28e3a0;
  background: rgba(40, 227, 160, 0.1);
  border-radius: 6px;
  border: 1px solid rgba(40, 227, 160, 0.3);
}

#themeToggle svg {
  width: 18px;
  height: 18px;
}

#themeToggle:hover:not(:disabled) {
  color: #4df5b8;
  background: rgba(40, 227, 160, 0.2);
  border-color: rgba(40, 227, 160, 0.5);
}

/* 深色模式时主题切换按钮使用变量颜色 */
html.dark #themeToggle {
  color: #28e3a0;
  background: rgba(40, 227, 160, 0.1);
  border: 1px solid rgba(40, 227, 160, 0.3);
}

html.dark #themeToggle:hover:not(:disabled) {
  color: #4df5b8;
  background: rgba(40, 227, 160, 0.2);
  border-color: rgba(40, 227, 160, 0.5);
}

/* 导航栏按钮专门样式 - 适配深色导航栏背景 */
.site-nav .btn-ghost {
  color: #8fa3bf;
}

.site-nav .btn-ghost:hover:not(:disabled) {
  color: #e6f1ff;
  background: rgba(230, 241, 255, 0.05);
}

.site-nav .btn-primary {
  background: #28e3a0;
  color: #050f1f;
}

.site-nav .btn-primary:hover:not(:disabled) {
  background: #4df5b8;
  box-shadow: 0 4px 16px rgba(40, 227, 160, 0.3);
  transform: translateY(-1px);
}

/* 深色模式时导航栏按钮使用变量颜色 */
html.dark .site-nav .btn-ghost {
  color: var(--text-secondary);
}

html.dark .site-nav .btn-ghost:hover:not(:disabled) {
  color: var(--text-primary);
  background: rgba(230, 241, 255, 0.05);
}

html.dark .site-nav .btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
}

html.dark .site-nav .btn-primary:hover:not(:disabled) {
  background: #4df5b8;
  box-shadow: 0 4px 16px rgba(40, 227, 160, 0.3);
}

/* Auth Buttons in Nav */
.nav-auth {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.nav-auth .btn {
  padding: 6px 16px;
  font-size: 0.8125rem;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  background: none;
  border: none;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #e6f1ff;
  border-radius: 1px;
  transition: all var(--transition-base);
}

/* 深色模式时菜单切换图标使用变量 */
html.dark .menu-toggle span {
  background: var(--text-primary);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav */
@media (max-width: 1024px) {
  .menu-toggle {
    display: flex;
  }
  .site-nav .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(5, 15, 31, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-xs);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: 999;
  }
  
  /* 浅色模式时移动端菜单保持深色 */
  html:not(.dark) .site-nav .nav-links {
    background: rgba(5, 15, 31, 0.98);
  }
  
  /* 深色主题移动端导航 */
  html.dark .site-nav .nav-links {
    background: rgba(5, 15, 31, 0.98);
  }
  
  .site-nav .nav-links.open {
    transform: translateX(0);
  }
  .site-nav .nav-links a {
    padding: 12px 16px;
    font-size: 1rem;
    width: 100%;
  }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

.footer-brand {
  max-width: 320px;
}
.footer-brand .logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}
.footer-brand .logo span{
  max-width:192px;
}
.footer-brand .logo img {
  width: 36px;
  height: 36px;
}
.footer-brand p {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--text-tertiary);
}

.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: var(--space-sm);
}
.footer-col a {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}
.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  margin-top: var(--space-3xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.footer-bottom p {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: var(--space-lg) 0;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}
.breadcrumb a {
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .sep {
  margin: 0 var(--space-sm);
  opacity: 0.5;
}
.breadcrumb .current {
  color: var(--text-secondary);
}

/* Page Header */
.page-header {
  padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-2xl);
  text-align: center;
}
.page-header h1 {
  margin-bottom: var(--space-sm);
}
.page-header p {
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Mobile Bottom Tab Bar ===== */
.mobile-tab-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: rgba(248, 250, 252, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-subtle);
  z-index: 1000;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

/* 深色主题移动端底部标签栏 */
html.dark .mobile-tab-bar {
  background: rgba(5, 15, 31, 0.95);
}

.mobile-tab-bar .tab-items {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 100%;
  padding: 0 var(--space-md);
}
.mobile-tab-bar .tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--text-tertiary);
  font-size: 0.625rem;
  transition: color var(--transition-fast);
}
.mobile-tab-bar .tab-item svg {
  width: 22px;
  height: 22px;
}
.mobile-tab-bar .tab-item.active {
  color: var(--accent);
}

@media (max-width: 768px) {
  .mobile-tab-bar {
    display: block;
  }
  body.has-tab-bar {
    padding-bottom: 60px;
  }
}

    /* ===== Nav Search导航搜索模块样式 ===== */
    .nav-search {
      position: relative;
    }
    .nav-search-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      background: transparent;
      border: none;
      color: #8fa3bf;
      cursor: pointer;
      border-radius: var(--radius-md);
      transition: all var(--transition-fast);
    }
    .nav-search-toggle:hover {
      color: #e6f1ff;
      background: rgba(230, 241, 255, 0.05);
    }
    .nav-search-panel {
      position: absolute;
      top: calc(100% + 8px);
      right: 0;
      padding: var(--space-md);
      background: rgba(5, 15, 31, 0.98);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid rgba(230, 241, 255, 0.12);
      border-radius: var(--radius-lg);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
      display: none;
      min-width: 340px;
      z-index: 1001;
    }
    .nav-search-panel.show {
      display: block;
      animation: searchFadeIn 0.2s ease;
    }
    @keyframes searchFadeIn {
      from { opacity: 0; transform: translateY(-6px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .nav-search-panel .search-hint {
      font-size: 0.6875rem;
      color: var(--text-tertiary);
      margin-bottom: var(--space-sm);
      letter-spacing: 0.03em;
    }
    .nav-search-input-wrap {
      display: flex;
      align-items: center;
      gap: 0;
      background: rgba(230, 241, 255, 0.05);
      border: 1px solid rgba(230, 241, 255, 0.12);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color var(--transition-fast);
    }
    .nav-search-input-wrap:focus-within {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(40, 227, 160, 0.08);
    }
    .nav-search-input-wrap input {
      flex: 1;
      min-width: 0;
      padding: 10px 14px;
      background: transparent;
      border: none;
      color: #e6f1ff;
      font-size: 0.875rem;
      outline: none;
      font-family: var(--font-sans);
    }
    .nav-search-input-wrap input::placeholder {
      color: rgba(143, 163, 191, 0.5);
    }
    .nav-search-submit {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 8px 16px;
      margin: 4px;
      background: var(--accent);
      border: none;
      color: #050f1f;
      font-size: 0.8125rem;
      font-weight: 500;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all var(--transition-fast);
      flex-shrink: 0;
      font-family: var(--font-sans);
      white-space: nowrap;
    }
    .nav-search-submit:hover {
      background: #4df5b8;
      box-shadow: 0 4px 12px rgba(40, 227, 160, 0.3);
    }
    .nav-search-error {
      display: none;
      color: #ff6b6b;
      font-size: 0.75rem;
      margin-top: var(--space-sm);
      padding-left: 4px;
    }
    /* 深色主题调整 */
    html.dark .nav-search-panel {
      background: rgba(5, 15, 31, 0.98);
      border-color: rgba(230, 241, 255, 0.1);
    }
    html.dark .nav-search-input-wrap input {
      color: var(--text-primary);
    }
    html.dark .nav-search-submit {
      color: var(--bg-primary);
    }
    @media (max-width: 768px) {
      .nav-search-panel {
        position: fixed;
        top: var(--nav-height);
        left: var(--space-md);
        right: var(--space-md);
        min-width: 0;
        border-radius: var(--radius-lg);
      }
    }