/* ========== 顶部导航 ========== */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: rgba(250, 248, 245, 0.88);
  backdrop-filter: blur(24px) saturate(1.5);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 36px;
  z-index: 100;
}

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo-mark {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 30px;
  height: 30px;
  color: var(--accent);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.logo-dot {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2px;
  margin-left: 40px;
}

.nav-link {
  padding: 8px 20px;
  border-radius: 24px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.25s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(0,0,0,0.03);
}

.nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 24px;
  font-size: 0.78rem;
  font-weight: 500;
  background: var(--sage-dim);
  color: var(--sage);
  border: 1px solid rgba(91,138,114,0.15);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sage);
  animation: pulse-dot 2.5s ease infinite;
}

.notification-bell {
  position: relative;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-muted);
}

.notification-bell:hover {
  background: rgba(0,0,0,0.04);
  color: var(--text-primary);
}

.notification-bell svg {
  width: 20px;
  height: 20px;
}

.bell-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 0.62rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 2px var(--bg-primary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--plum));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: white;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

/* ========== 通知下拉面板 ========== */
.notification-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 340px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  animation: notif-slide 0.2s ease;
  overflow: hidden;
}

.notification-dropdown.open {
  display: block;
}

@keyframes notif-slide {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.notif-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--text-primary);
}

.notif-count {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 600;
}

.notif-list {
  max-height: 320px;
  overflow-y: auto;
}

.notif-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  cursor: pointer;
  transition: background 0.15s;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.notif-item:last-child {
  border-bottom: none;
}

.notif-item:hover {
  background: rgba(0,0,0,0.025);
}

.notif-item.unread {
  background: var(--accent-dim);
}

.notif-item.unread:hover {
  background: rgba(212,113,78,0.12);
}

.notif-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}

.notif-dot.danger { background: #C0392B; }
.notif-dot.warning { background: #C4820E; }
.notif-dot.info { background: var(--sage); }

.notif-content {
  flex: 1;
  min-width: 0;
}

.notif-text {
  font-size: 0.84rem;
  color: var(--text-primary);
  line-height: 1.4;
}

.notif-time {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ========== 页面头部 ========== */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 6px;
  letter-spacing: 0.5px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.live-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  background: var(--accent-dim);
  padding: 4px 12px;
  border-radius: 16px;
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 1.5s infinite;
}

.time-display {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ========== 移动端汉堡按钮 ========== */
.mobile-menu-btn {
  display: none;
  width: 38px;
  height: 38px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.mobile-menu-btn:hover {
  background: rgba(0,0,0,0.04);
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(250, 248, 245, 0.98);
    backdrop-filter: blur(24px);
    flex-direction: column;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    z-index: 99;
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-link {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.95rem;
  }
}