* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body, #app {
  height: 100%;
  font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root {
  --primary: #00543D;
  --primary-light: #98D997;
  --primary-dark: #004532;
  --primary-bg: #E8F5EA;
  --accent: #2563EB;
  --warning: #F59E0B;
  --ink: #14213D;
  --gradient: linear-gradient(135deg, #0F766E 0%, #14B8A6 52%, #2DD4BF 100%);
  --gradient-blue: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  --gradient-green: linear-gradient(135deg, #0F766E 0%, #22C55E 100%);
  --gradient-orange: linear-gradient(135deg, #F59E0B 0%, #F97316 100%);
  --gradient-red: linear-gradient(135deg, #DC2626 0%, #FB7185 100%);
  --gradient-pink: linear-gradient(135deg, #DB2777 0%, #F472B6 100%);
  --gradient-cyan: linear-gradient(135deg, #0891B2 0%, #22D3EE 100%);

  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #8A94A6;
  --border-color: #DCE8DE;
  --bg-color: #F7FAF6;
  --bg-white: #FFFFFF;

  --sidebar-width: 252px;
  --sidebar-collapsed: 82px;
  --header-height: 58px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);
}

.page-container {
  width: 100%;
  max-width: 1480px;
  margin: 0 auto;
  padding: 22px 32px 28px;
  background: var(--bg-color);
  min-height: calc(100vh - var(--header-height));
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.page-header h2 {
  font-size: 25px;
  font-weight: 900;
  color: var(--primary);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.gen-input-section,
.guide-card,
.question-card,
.phase-content,
.resource-card,
.post-card {
  border-radius: 14px !important;
  border-color: #dce8de !important;
  box-shadow: none !important;
}

.guide-cards {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)) !important;
  gap: 12px !important;
}

.settings-row,
.settings-grid,
.filter-bar {
  flex-wrap: wrap;
}

.settings-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)) !important;
}

.gen-hero {
  max-width: 1120px;
  margin: 0 auto 18px !important;
  align-items: center !important;
}

.gen-hero-icon {
  width: 42px !important;
  height: 42px !important;
  border-radius: 50% !important;
  background: #fff !important;
  border: 1px solid #d6e4d8 !important;
  color: var(--primary) !important;
}

.gen-hero-icon .el-icon,
.gen-hero-icon svg {
  color: var(--primary) !important;
}

.gen-hero h2 {
  font-size: 25px !important;
  color: var(--primary) !important;
  font-weight: 900 !important;
}

.gen-hero p {
  color: #75867f !important;
  font-size: 14px !important;
}

.gen-input-section {
  max-width: 1120px;
  margin: 0 auto 22px !important;
  background: rgba(255,255,255,0.86) !important;
  border: 1px solid #cfe0d3 !important;
  border-radius: 18px !important;
  box-shadow: 0 18px 42px rgba(17, 69, 52, 0.07) !important;
}

.prompt-box :deep(.el-textarea__inner),
.input-area :deep(.el-textarea__inner),
.essay-input :deep(.el-textarea__inner),
.setting-full :deep(.el-textarea__inner) {
  background: #fff !important;
  border: 1px solid #dce8de !important;
  border-radius: 14px !important;
  color: #173f35 !important;
}

.prompt-tag,
.sug-tag,
.type-check,
.hot-tag {
  border-radius: 18px !important;
  background: #fff !important;
  border: 1px solid #dce8de !important;
  color: #51665f !important;
}

.prompt-tag:hover,
.sug-tag:hover,
.type-check.checked,
.hot-tag:hover {
  background: #e8f5ea !important;
  border-color: #a8cfab !important;
  color: var(--primary) !important;
}

.gen-btn,
.generate-btn,
.create-btn,
.upload-btn,
.grade-btn,
.save-btn,
.action-btn.primary {
  background: #00543d !important;
  border-radius: 13px !important;
  box-shadow: none !important;
}

.guide-section,
.result-section,
.essay-input-panel,
.essay-result-panel,
.info-tags,
.homework-section,
.filter-bar,
.community-layout,
.content-area {
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
}

.guide-card,
.guide-item,
.question-card,
.phase-content,
.resource-card,
.post-card,
.cw-card,
.input-card,
.result-panel,
.essay-input-panel,
.essay-result-panel,
.hot-tags-card {
  border: 1px solid #dce8de !important;
  border-radius: 14px !important;
  box-shadow: none !important;
}

.cw-cover,
.template-cover,
.card-thumb {
  border-radius: 10px;
  margin: 5px;
}

.el-input__wrapper,
.el-textarea__inner,
.el-select__wrapper {
  box-shadow: none !important;
  border: 1px solid #dce8de !important;
  background: #fff !important;
}

@media (max-width: 760px) {
  .page-container {
    padding: 14px;
  }

  .page-header {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 18px;
  }

  .prompt-footer,
  .result-header,
  .header-actions {
    align-items: stretch !important;
    flex-direction: column !important;
  }
}

/* Element Plus overrides */
.el-card {
  border-radius: var(--radius-lg) !important;
  border: 1px solid var(--border-color) !important;
  box-shadow: var(--shadow-sm) !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.el-card:hover {
  box-shadow: var(--shadow-lg) !important;
  transform: translateY(-2px);
}

.el-button--primary {
  background: var(--gradient) !important;
  border: none !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 500 !important;
}

.el-button--primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4) !important;
}

.el-input__wrapper,
.el-textarea__inner,
.el-select__wrapper {
  border-radius: var(--radius-sm) !important;
}

.el-form-item__label {
  font-weight: 500 !important;
  color: var(--text-secondary) !important;
}

/* Dialog */
.el-dialog {
  border-radius: var(--radius-lg) !important;
  overflow: hidden;
}
.el-dialog__header {
  border-bottom: 1px solid var(--border-color);
  padding: 20px 24px !important;
  margin-right: 0 !important;
}
.el-dialog__title {
  font-weight: 600 !important;
  font-size: 17px !important;
  color: var(--text-primary) !important;
}
.el-dialog__body {
  padding: 24px !important;
}
.el-dialog__footer {
  border-top: 1px solid var(--border-color);
  padding: 16px 24px !important;
}

/* Tag */
.el-tag {
  border-radius: 6px !important;
}

/* Dropdown */
.el-dropdown-menu__item {
  border-radius: 6px !important;
  margin: 2px 6px !important;
  padding: 8px 16px !important;
}

/* Message */
.el-message {
  border-radius: var(--radius-sm) !important;
  box-shadow: var(--shadow-lg) !important;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, #F1F5F9 25%, #E2E8F0 50%, #F1F5F9 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}
@keyframes floatSlow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(3deg); }
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}
@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Utility classes */
.fade-in-up {
  animation: fadeInUp 0.5s ease both;
}

/* Selection */
::selection {
  background: var(--primary-bg);
  color: var(--primary);
}

/* ===== Print Styles ===== */
@media print {
  .zj-sidebar,
  .zj-header,
  .floating-composer,
  .create-topbar,
  .result-actions,
  .toolbar-actions,
  .canvas-toolbar,
  .prompt-toolbar,
  .task-toolbar,
  .quick-nav,
  .help-footer,
  .el-message,
  .el-dialog,
  .el-overlay,
  .back-btn,
  .action-btn,
  .gen-btn,
  .tool-btn,
  .save-btn,
  .new-task,
  .points-banner,
  .sidebar-bottom,
  .filter-panel button,
  .card-actions,
  .saved-actions,
  .prompt-actions,
  .settings-row,
  .material-row,
  .input-settings,
  .gen-input-section,
  .guide-section,
  .loading-section,
  .saved-section,
  nav,
  aside,
  header,
  footer { display: none !important; }

  body { background: #fff !important; }
  .page-container,
  .create-body,
  .create-page,
  .canvas-scroll,
  .result-section,
  .animation-preview,
  .mm-canvas-panel { width: 100% !important; max-width: 100% !important; margin: 0 !important; padding: 0 !important; box-shadow: none !important; border: none !important; }
  .zj-home,
  .create-page,
  .page-container { padding: 0 !important; }
  .html-preview-frame,
  .preview-iframe { width: 100% !important; height: auto !important; min-height: 500px !important; page-break-inside: avoid; }
  * { color: #000 !important; }
  a { text-decoration: none !important; }
  .el-card,
  .el-table { box-shadow: none !important; border: 1px solid #ddd !important; }
  h1, h2, h3 { page-break-after: avoid; }
  .courseware-page,
  .exam-question { page-break-inside: avoid; }
}