/* ============================================
   用户中心 — 独立样式
   ============================================ */

/* User Center Layout */
.uc-layout {
  display: flex;
  gap: 32px;
  padding-top: calc(var(--header-height) + 32px);
  min-height: 100vh;
}

.uc-sidebar {
  width: 260px;
  min-width: 260px;
  position: sticky;
  top: calc(var(--header-height) + 32px);
  height: fit-content;
}

.uc-profile-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  margin-bottom: 16px;
  backdrop-filter: blur(var(--glass-blur));
}

.uc-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.2), rgba(99, 102, 241, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border: 3px solid var(--glass-border);
  position: relative;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.uc-avatar:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 20px var(--color-accent-glow);
}

.uc-avatar .edit-overlay {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
  font-size: 0.75rem;
  color: #fff;
}

.uc-avatar:hover .edit-overlay {
  opacity: 1;
}

.uc-username {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.uc-role-badge {
  display: inline-block;
  padding: 2px 12px;
  border-radius: 12px;
  font-size: 0.6875rem;
  font-weight: 600;
  background: rgba(245, 166, 35, 0.12);
  color: var(--color-accent);
  border: 1px solid rgba(245, 166, 35, 0.2);
}

.uc-nav {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(var(--glass-blur));
}

.uc-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
  border-left: 3px solid transparent;
}

.uc-nav-item:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-primary);
}

.uc-nav-item.active {
  background: rgba(245, 166, 35, 0.05);
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}

.uc-nav-item .icon {
  width: 20px;
  text-align: center;
}

.uc-nav-divider {
  height: 1px;
  background: var(--glass-border);
  margin: 4px 0;
}

.uc-nav-item.danger {
  color: #f87171;
}

.uc-nav-item.danger:hover {
  background: rgba(248, 113, 113, 0.05);
}

/* Main Content */
.uc-main {
  flex: 1;
  padding-bottom: 64px;
}

.uc-section-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Account Info */
.uc-info-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 24px;
  backdrop-filter: blur(var(--glass-blur));
}

.uc-info-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
}

.uc-field-row {
  display: flex;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.uc-field-row:last-child {
  border-bottom: none;
}

.uc-field-label {
  width: 120px;
  min-width: 120px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.uc-field-value {
  flex: 1;
  font-size: 0.9375rem;
}

.uc-field-action {
  margin-left: 16px;
}

.uc-field-action .btn {
  font-size: 0.75rem;
  padding: 4px 14px;
}

/* Subscription Cards */
.uc-sub-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(var(--glass-blur));
  transition: all var(--transition-normal);
}

.uc-sub-card:hover {
  border-color: rgba(245, 166, 35, 0.2);
}

.uc-sub-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.uc-sub-info .expire {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.uc-sub-actions {
  display: flex;
  gap: 8px;
}

/* Order History Table */
.uc-table-wrap {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(var(--glass-blur));
}

.uc-table-title {
  padding: 18px 24px;
  font-size: 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--glass-border);
}

table.uc-table {
  width: 100%;
  border-collapse: collapse;
}

table.uc-table th {
  padding: 10px 20px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--glass-border);
}

table.uc-table td {
  padding: 12px 20px;
  font-size: 0.8125rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--color-text-secondary);
}

table.uc-table tr:last-child td {
  border-bottom: none;
}

/* Activity/Event cards */
.uc-event-card {
  display: flex;
  gap: 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  transition: all var(--transition-fast);
  backdrop-filter: blur(var(--glass-blur));
}

.uc-event-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.uc-event-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.1), rgba(99, 102, 241, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.uc-event-info h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.uc-event-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Download list */
.uc-download-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

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

.uc-download-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 10px;
  background: rgba(99, 102, 241, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #818cf8;
}

.uc-download-info {
  flex: 1;
}

.uc-download-info h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.uc-download-info .date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Empty State */
.uc-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-muted);
}

.uc-empty .empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.uc-empty p {
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

/* Responsive */
@media (max-width: 1023px) {
  .uc-sidebar { width: 220px; min-width: 220px; }
}

@media (max-width: 767px) {
  .uc-layout {
    flex-direction: column;
    gap: 16px;
    padding-top: calc(var(--header-height) + 16px);
  }
  .uc-sidebar {
    width: 100%;
    min-width: 100%;
    position: static;
  }
  .uc-profile-card {
    display: flex;
    align-items: center;
    text-align: left;
    gap: 16px;
    padding: 16px 20px;
  }
  .uc-avatar {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
    margin: 0;
  }
  .uc-nav {
    display: flex;
    overflow-x: auto;
    border-radius: 12px;
    gap: 0;
  }
  .uc-nav-item {
    white-space: nowrap;
    border-left: none;
    border-bottom: 2px solid transparent;
    padding: 12px 16px;
    font-size: 0.8125rem;
  }
  .uc-nav-item.active {
    border-bottom-color: var(--color-accent);
    border-left-color: transparent;
  }
  .uc-nav-divider { display: none; }
  .uc-sub-card { flex-direction: column; align-items: flex-start; gap: 12px; }
  .uc-field-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .uc-field-action { margin-left: 0; }
}