/* ============================================================
   川渝好门户 - 头部与导航样式
   ============================================================ */

/* ========== 顶部信息栏 ========== */
#toptb {
  background: var(--cy-gray-900);
  color: var(--cy-gray-400);
  font-size: var(--cy-text-sm);
  line-height: 32px;
  position: relative;
  z-index: 1001;
}
#toptb .wp {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--cy-container);
  margin: 0 auto;
  padding: 0 var(--cy-space-4);
}
#toptb a { color: var(--cy-gray-400); padding: 0 var(--cy-space-2); transition: var(--cy-transition); }
#toptb a:hover { color: #fff; }
.toptb-left, .toptb-right { display: flex; align-items: center; gap: var(--cy-space-2); }
.toptb-divider { color: var(--cy-gray-700); }

/* ========== 主导航栏 ========== */
#hd {
  background: var(--cy-bg-card);
  box-shadow: var(--cy-shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--cy-border);
}
#hd .wp {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--cy-header-h);
  max-width: var(--cy-container);
  margin: 0 auto;
  padding: 0 var(--cy-space-4);
  gap: var(--cy-space-6);
}

/* Logo */
.logoarea { flex-shrink: 0; }
.logoarea .logo { margin: 0; }
.logoarea .logo a {
  display: flex;
  align-items: center;
  gap: var(--cy-space-2);
  font-size: var(--cy-text-2xl);
  font-weight: 800;
  color: var(--cy-primary);
  text-decoration: none;
  letter-spacing: -0.5px;
}
.logoarea .logo a:hover { color: var(--cy-primary-dark); }
.logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--cy-primary), var(--cy-primary-light));
  border-radius: var(--cy-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(196,30,58,0.3);
}
.logo-text { line-height: 1.2; }
.logo-text small {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: var(--cy-text-muted);
  letter-spacing: 2px;
}

/* 搜索框 */
.scbar { flex: 1; max-width: 480px; }
.scbar form { display: flex; position: relative; }
.scbar input[type="text"] {
  flex: 1;
  height: 40px;
  padding: 0 var(--cy-space-4);
  border: 2px solid var(--cy-border);
  border-right: none;
  border-radius: var(--cy-radius) 0 0 var(--cy-radius);
  font-size: var(--cy-text-base);
  background: var(--cy-gray-50);
  color: var(--cy-text);
  outline: none;
  transition: var(--cy-transition);
}
.scbar input[type="text"]:focus {
  border-color: var(--cy-primary);
  background: #fff;
}
.scbar button {
  height: 40px;
  padding: 0 var(--cy-space-6);
  background: var(--cy-primary);
  color: #fff;
  border: none;
  border-radius: 0 var(--cy-radius) var(--cy-radius) 0;
  font-size: var(--cy-text-base);
  font-weight: 600;
  cursor: pointer;
  transition: var(--cy-transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.scbar button:hover { background: var(--cy-primary-dark); }
.scbar button svg { width: 18px; height: 18px; }

/* 用户操作区 */
.hd-actions { display: flex; align-items: center; gap: var(--cy-space-2); flex-shrink: 0; }
.hd-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--cy-border);
  transition: var(--cy-transition);
}
.hd-avatar:hover { border-color: var(--cy-primary); }
.hd-avatar img { width: 100%; height: 100%; object-fit: cover; }
.hd-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  font-size: var(--cy-text-sm);
  font-weight: 500;
  border-radius: var(--cy-radius-sm);
  transition: var(--cy-transition);
  text-decoration: none;
}
.hd-btn-primary { background: var(--cy-primary); color: #fff; }
.hd-btn-primary:hover { background: var(--cy-primary-dark); color: #fff; }
.hd-btn-ghost { color: var(--cy-text-secondary); }
.hd-btn-ghost:hover { background: var(--cy-bg-hover); color: var(--cy-text); }
.hd-icon-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--cy-text-secondary);
  transition: var(--cy-transition);
  position: relative;
}
.hd-icon-btn:hover { background: var(--cy-bg-hover); color: var(--cy-primary); }
.hd-icon-btn svg { width: 20px; height: 20px; }
.hd-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 16px;
  height: 16px;
  background: var(--cy-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  border-radius: var(--cy-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 1;
}

/* ========== 频道导航栏 ========== */
#nv-bar {
  background: var(--cy-primary);
  position: relative;
  z-index: 999;
}
#nv-bar .wp { max-width: var(--cy-container); margin: 0 auto; padding: 0 var(--cy-space-4); }
#nv {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  height: var(--cy-nav-h);
  overflow-x: auto;
  scrollbar-width: none;
}
#nv::-webkit-scrollbar { display: none; }
#nv li { position: relative; }
#nv li a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 var(--cy-space-4);
  height: var(--cy-nav-h);
  color: rgba(255,255,255,0.85);
  font-size: var(--cy-text-base);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: var(--cy-transition);
  position: relative;
}
#nv li a:hover { color: #fff; background: rgba(255,255,255,0.1); }
#nv li.a a { color: #fff; font-weight: 600; }
#nv li.a a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: #fff;
  border-radius: 3px 3px 0 0;
}
#nv .nav-icon { width: 16px; height: 16px; }

/* 下拉菜单 */
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 160px;
  background: #fff;
  border-radius: 0 0 var(--cy-radius) var(--cy-radius);
  box-shadow: var(--cy-shadow-lg);
  z-index: 1001;
  padding: var(--cy-space-2) 0;
  border-top: 2px solid var(--cy-primary);
}
.nav-dropdown:hover .nav-dropdown-menu { display: block; }
.nav-dropdown-item {
  display: block;
  padding: 8px var(--cy-space-4);
  color: var(--cy-text-secondary);
  font-size: var(--cy-text-sm);
  text-decoration: none;
  transition: var(--cy-transition);
}
.nav-dropdown-item:hover {
  background: var(--cy-primary-bg);
  color: var(--cy-primary);
  padding-left: 20px;
}
.nav-dropdown-divider { height: 1px; background: var(--cy-border); margin: var(--cy-space-2) 0; }

/* ========== 移动端 ========== */
.mobile-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--cy-radius-sm);
}
.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cy-text);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--cy-transition);
}
.mobile-menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1099;
}
.mobile-nav-overlay.show { display: block; }
.mobile-nav-sidebar {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background: var(--cy-bg-card);
  z-index: 1100;
  overflow-y: auto;
  transition: right 0.3s ease;
  box-shadow: var(--cy-shadow-xl);
}
.mobile-nav-sidebar.show { right: 0; }
.mobile-nav-header {
  padding: var(--cy-space-5);
  background: linear-gradient(135deg, var(--cy-primary), var(--cy-primary-dark));
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mobile-nav-close {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.2);
  border: none;
  color: #fff;
  font-size: 20px;
  border-radius: 50%;
  cursor: pointer;
}
.mobile-nav-section { padding: var(--cy-space-2) 0; border-bottom: 1px solid var(--cy-border); }
.mobile-nav-section-title {
  padding: var(--cy-space-2) var(--cy-space-5);
  font-size: var(--cy-text-xs);
  color: var(--cy-text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 1px;
}
.mobile-nav-item {
  display: flex;
  align-items: center;
  gap: var(--cy-space-3);
  padding: var(--cy-space-3) var(--cy-space-5);
  color: var(--cy-text);
  font-size: var(--cy-text-base);
  text-decoration: none;
  transition: var(--cy-transition);
}
.mobile-nav-item:hover, .mobile-nav-item:active { background: var(--cy-bg-hover); color: var(--cy-primary); }
.mobile-nav-item .nav-icon { width: 20px; height: 20px; flex-shrink: 0; }

/* 移动端搜索按钮 */
.mobile-search-btn {
  display: none;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--cy-text);
  cursor: pointer;
  border-radius: var(--cy-radius-sm);
  align-items: center;
  justify-content: center;
}

@media (max-width: 768px) {
  #toptb { display: none; }
  .scbar { display: none; }
  .hd-actions .hd-btn { display: none; }
  .mobile-menu-toggle { display: block; }
  .mobile-search-btn { display: flex; }
  #nv-bar { display: none; }
  #hd .wp { height: 56px; gap: var(--cy-space-2); }
  .logoarea .logo a { font-size: var(--cy-text-xl); }
  .logo-mark { width: 32px; height: 32px; font-size: 16px; }
}

/* ========== 页面加载进度条 ========== */
.page-loading-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cy-primary), var(--cy-orange), var(--cy-primary));
  background-size: 200% 100%;
  animation: cy-loading 1.5s ease-in-out infinite;
  z-index: 99999;
  transform: translateX(-100%);
  transition: transform 0.3s;
}
.page-loading-bar.loading { transform: translateX(0); }
.page-loading-bar.done { transform: translateX(100%); }
@keyframes cy-loading {
  0%,100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}