/* ============================================================
   御龙批发CRM — 全局样式表
   Apple 全生态响应式设计
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --primary: #1B3A5C;
  --primary-light: #2E5C8A;
  --primary-dark: #0F2640;
  --accent: #E8A838;
  --accent-light: #F5C76B;
  --accent-dark: #C48A20;
  
  --success: #27AE60;
  --success-light: #E8F5E9;
  --warning: #F39C12;
  --warning-light: #FFF8E1;
  --danger: #E74C3C;
  --danger-light: #FFEBEE;
  --info: #2980B9;
  --info-light: #E3F2FD;
  
  --bg: #F0F4F8;
  --bg-card: #FFFFFF;
  --bg-sidebar: var(--primary);
  
  --text: #2C3E50;
  --text-secondary: #7F8C8D;
  --text-light: #BDC3C7;
  --text-on-primary: #FFFFFF;
  
  --border: #E8ECF0;
  --border-light: #F0F2F5;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-xl: 0 12px 40px rgba(0,0,0,0.16);
  
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  
  --sidebar-width: 240px;
  --header-height: 60px;
  --tab-height: 72px;
  
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  min-height: 100dvh;
}

a { color: var(--info); text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* --- App Layout --- */
.app-container {
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
}

/* --- Sidebar (Desktop / iPad) --- */
.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 100%);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.sidebar-header {
  padding: 24px 20px 16px;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-logo {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.sidebar-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-on-primary);
  letter-spacing: 0.5px;
}

.sidebar-subtitle {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.9);
}

.nav-item.active {
  background: rgba(232, 168, 56, 0.15);
  color: var(--accent);
}

.nav-item .nav-icon {
  font-size: 20px;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

.nav-item .nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: white;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 10px;
  font-weight: 600;
}

.nav-divider {
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 8px 16px;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 11px;
  color: rgba(255,255,255,0.3);
  text-align: center;
}

/* --- Main Content --- */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
}

/* --- Page Header --- */
.page-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(240, 244, 248, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--border-light);
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-title .title-icon {
  font-size: 26px;
}

.page-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* --- Mobile Header (hidden on desktop) --- */
.mobile-header {
  display: none;
}

/* --- Page Content --- */
.page-content {
  padding: 20px 24px;
  padding-bottom: 32px;
  max-width: 1400px;
}

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body {
  padding: 16px 20px;
}

.card-body.no-padding {
  padding: 0;
}

/* --- KPI Cards --- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.kpi-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.kpi-card.kpi-blue::before { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
.kpi-card.kpi-gold::before { background: linear-gradient(90deg, var(--accent-dark), var(--accent)); }
.kpi-card.kpi-green::before { background: linear-gradient(90deg, #1E8449, var(--success)); }
.kpi-card.kpi-red::before { background: linear-gradient(90deg, #C0392B, var(--danger)); }

.kpi-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kpi-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.kpi-value .kpi-unit {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-left: 4px;
}

.kpi-icon {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 32px;
  opacity: 0.15;
}

/* --- Data List / Table --- */
.data-list {
  list-style: none;
}

.data-item {
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: background var(--transition);
}

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

.data-item:hover {
  background: var(--bg);
}

.data-item:active {
  background: #E8ECF0;
}

.data-item-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.data-item-avatar.avatar-blue { background: var(--info-light); }
.data-item-avatar.avatar-green { background: var(--success-light); }
.data-item-avatar.avatar-gold { background: #FFF3DC; }
.data-item-avatar.avatar-red { background: var(--danger-light); }
.data-item-avatar.avatar-purple { background: #F3E5F5; }

.data-item-info {
  flex: 1;
  min-width: 0;
}

.data-item-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.data-item-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.data-item-right {
  text-align: right;
  flex-shrink: 0;
}

.data-item-amount {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

.data-item-meta {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* --- Badge / Status --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.status-green { background: var(--success-light); color: var(--success); }
.status-yellow { background: var(--warning-light); color: #E67E22; }
.status-red { background: var(--danger-light); color: var(--danger); }
.status-blue { background: var(--info-light); color: var(--info); }
.status-gray { background: #ECEFF1; color: #78909C; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: var(--primary);
  color: var(--text-on-primary);
}

.btn-primary:hover {
  background: var(--primary-light);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--accent);
  color: #FFF;
}

.btn-accent:hover {
  background: var(--accent-dark);
}

.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #E5EAF0;
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover {
  background: #C0392B;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 12px;
}

.btn-ghost:hover {
  background: var(--bg);
  color: var(--text);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
  font-size: 18px;
}

.btn-fab {
  position: fixed;
  bottom: calc(var(--tab-height) + 20px + var(--safe-bottom));
  right: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  font-size: 24px;
  box-shadow: var(--shadow-lg);
  z-index: 40;
}

/* --- Forms --- */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.form-label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text);
  background: var(--bg-card);
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27, 58, 92, 0.1);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237F8C8D' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-hint {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* --- Search Bar --- */
.search-bar {
  position: relative;
}

.search-bar .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  color: var(--text-secondary);
  pointer-events: none;
}

.search-bar .form-input {
  padding-left: 40px;
  background: var(--bg);
  border-color: transparent;
}

.search-bar .form-input:focus {
  background: var(--bg-card);
  border-color: var(--primary);
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.filter-chip {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-chip:hover {
  border-color: var(--primary-light);
  color: var(--primary);
}

.filter-chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* --- Modal / Sheet --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-sheet {
  background: var(--bg-card);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  width: 100%;
  max-width: 600px;
  max-height: 92vh;
  max-height: 92dvh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
  padding-bottom: var(--safe-bottom);
}

.modal-overlay.active .modal-sheet {
  transform: translateY(0);
}

.modal-handle {
  width: 36px;
  height: 5px;
  background: var(--border);
  border-radius: 3px;
  margin: 10px auto 0;
}

.modal-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  background: var(--bg-card);
  z-index: 10;
}

.modal-title {
  font-size: 17px;
  font-weight: 700;
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--bg);
  color: var(--text-secondary);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.modal-body {
  padding: 16px 20px;
}

.modal-footer {
  padding: 12px 20px;
  display: flex;
  gap: 10px;
  border-top: 1px solid var(--border-light);
  position: sticky;
  bottom: 0;
  background: var(--bg-card);
}

.modal-footer .btn {
  flex: 1;
}

/* --- Confirm Dialog --- */
.confirm-dialog {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 28px 24px 20px;
  text-align: center;
  max-width: 340px;
  width: 90%;
  margin: auto;
  box-shadow: var(--shadow-xl);
}

.confirm-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.confirm-message {
  font-size: 15px;
  color: var(--text);
  margin-bottom: 20px;
  line-height: 1.5;
}

.confirm-actions {
  display: flex;
  gap: 10px;
}

.confirm-actions .btn {
  flex: 1;
}

/* --- Toast --- */
#toast-container {
  position: fixed;
  top: calc(20px + var(--safe-top));
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  background: var(--text);
  color: white;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  transform: translateY(-20px);
  opacity: 0;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: var(--warning); }
.toast-info { background: var(--info); }

.toast-icon {
  font-size: 16px;
  font-weight: 700;
}

/* --- Section Title --- */
.section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* --- Grid Layouts --- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

/* --- Detail View --- */
.detail-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.detail-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.detail-name {
  font-size: 18px;
  font-weight: 700;
}

.detail-code {
  font-size: 13px;
  opacity: 0.7;
  margin-top: 2px;
}

.detail-section {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
}

.detail-section:last-child {
  border-bottom: none;
}

.detail-section-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 6px 0;
}

.detail-label {
  font-size: 13px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.detail-value {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  text-align: right;
  max-width: 60%;
  word-break: break-word;
}

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

.empty-icon {
  font-size: 56px;
  margin-bottom: 16px;
  opacity: 0.4;
}

.empty-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.empty-desc {
  font-size: 14px;
  margin-bottom: 20px;
}

/* --- Tab Bar (Mobile) --- */
.tab-bar {
  display: none;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-in {
  animation: fadeInUp 0.35s ease forwards;
}

.animate-in:nth-child(2) { animation-delay: 0.05s; }
.animate-in:nth-child(3) { animation-delay: 0.1s; }
.animate-in:nth-child(4) { animation-delay: 0.15s; }

/* --- Utility --- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-secondary); }
.text-sm { font-size: 13px; }
.fw-bold { font-weight: 700; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.mb-20 { margin-bottom: 20px; }
.gap-8 { gap: 8px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.hidden { display: none !important; }

/* --- Scrollbar (webkit) --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-light);
}

/* ============================================================
   RESPONSIVE — iPad
   ============================================================ */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 68px;
  }

  .sidebar-title,
  .sidebar-subtitle,
  .nav-item span:not(.nav-icon),
  .nav-item .nav-badge,
  .nav-divider,
  .sidebar-footer {
    display: none;
  }

  .sidebar-header {
    padding: 16px 8px;
  }

  .sidebar-logo {
    width: 40px;
    height: 40px;
  }

  .nav-item {
    justify-content: center;
    padding: 12px;
  }

  .nav-item .nav-icon {
    font-size: 22px;
  }

  .page-content {
    padding: 16px;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   RESPONSIVE — Mobile
   ============================================================ */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    width: 260px;
    z-index: 250;
  }

  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 249;
  }

  .sidebar-backdrop.active {
    display: block;
  }

  .sidebar.open ~ .sidebar-backdrop {
    display: block;
  }

  .sidebar-title,
  .sidebar-subtitle,
  .nav-item span:not(.nav-icon),
  .nav-divider,
  .sidebar-footer {
    display: revert;
  }

  .nav-item {
    justify-content: flex-start;
    padding: 12px 16px;
  }

  .main-content {
    margin-left: 0;
    padding-bottom: calc(var(--tab-height) + var(--safe-bottom));
  }

  .mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    padding-top: calc(10px + var(--safe-top));
    background: var(--primary);
    color: white;
  }

  .mobile-header-title {
    font-size: 17px;
    font-weight: 700;
  }

  .mobile-menu-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255,255,255,0.12);
    color: white;
    border-radius: var(--radius-md);
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .page-header {
    padding: 12px 16px;
  }

  .page-title {
    font-size: 18px;
  }

  .page-content {
    padding: 12px 16px;
    padding-bottom: 24px;
  }

  .tab-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--tab-height);
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
    z-index: 100;
    padding-bottom: var(--safe-bottom);
    align-items: center;
    justify-content: space-around;
  }

  .tab-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 6px 4px;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: color var(--transition);
    position: relative;
  }

  .tab-item .tab-icon {
    font-size: 22px;
    transition: transform var(--transition);
  }

  .tab-item.active {
    color: var(--primary);
  }

  .tab-item.active .tab-icon {
    transform: scale(1.1);
  }

  .tab-item .tab-badge {
    position: absolute;
    top: 2px;
    right: calc(50% - 18px);
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid white;
  }

  .kpi-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .kpi-value {
    font-size: 22px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .modal-sheet {
    max-height: 95vh;
    max-height: 95dvh;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }

  .btn-fab {
    bottom: calc(var(--tab-height) + 16px + var(--safe-bottom));
    right: 16px;
  }

  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }

  .detail-header {
    border-radius: 0;
  }
}

/* ============================================================
   RESPONSIVE — Large Desktop
   ============================================================ */
@media (min-width: 1280px) {
  .modal-overlay {
    align-items: center;
  }

  .modal-sheet {
    border-radius: var(--radius-xl);
    max-height: 85vh;
  }

  .page-content {
    padding: 24px 32px;
  }
}

/* --- Print --- */
@media print {
  .sidebar, .tab-bar, .btn-fab, .mobile-header, .page-actions {
    display: none !important;
  }
  .main-content {
    margin-left: 0 !important;
  }
}

/* ============================================================
   AI 商拍 (AI Studio) 专属样式
   ============================================================ */
.studio-upload-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
@media (max-width: 768px) {
  .studio-upload-grid {
    grid-template-columns: 1fr;
  }
}

.upload-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  overflow: hidden;
  height: 100%;
}

.upload-box {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  min-height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  background: var(--bg);
}

.upload-box.drag-over {
  border-color: #9B59B6;
  background: rgba(155,89,182,0.05);
}

.upload-box:hover {
  border-color: var(--primary);
  background: rgba(27, 58, 92, 0.02);
}

.upload-preview {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  display: none;
  background-color: var(--bg-card);
  z-index: 5;
}

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  padding: 8px 16px;
  border-radius: 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.pill.active {
  background: linear-gradient(135deg, #1B3A5C, #9B59B6);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(155,89,182,0.3);
}

.aistudio-btn-generate {
  width: 100%;
  margin-top: 20px;
  padding: 14px 20px;
  font-size: 16px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #2980B9, #9B59B6);
  color: white;
  border: none;
  animation: pulse-shadow 2s infinite;
}

@keyframes pulse-shadow {
  0% { box-shadow: 0 0 0 0 rgba(155,89,182, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(155,89,182, 0); }
  100% { box-shadow: 0 0 0 0 rgba(155,89,182, 0); }
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  min-height: 200px;
}

.gallery-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  font-size: 14px;
}

.gallery-item {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--bg);
}

.gallery-item:hover .item-overlay {
  opacity: 1;
}

.item-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 20px;
  background: linear-gradient(0deg, rgba(0,0,0,0.8), transparent);
  opacity: 0;
  transition: opacity 0.3s;
  display: flex;
  justify-content: center;
}

.skeleton-item {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.skeleton-item::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  100% { left: 200%; }
}

.skeleton-text {
  position: absolute;
  bottom: 20px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
  padding: 0 10px;
  animation: pulse-text 1.5s infinite;
}

@keyframes pulse-text {
  0% { opacity: 0.5; }
  50% { opacity: 1; }
  100% { opacity: 0.5; }
}