/* landing.css - Tisilu 公共首页样式 */

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

:root {
  --primary-color: #667eea;
  --primary-dark: #5a6fd6;
  --secondary-color: #764ba2;
  --text-primary: #303133;
  --text-secondary: #606266;
  --text-muted: #909399;
  --bg-light: #f5f7fa;
  --bg-white: #ffffff;
  --border-color: #e4e7ed;
  --success-color: #67c23a;
  --warning-color: #e6a23c;
  --danger-color: #f56c6c;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
  background-color: var(--bg-white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo .logo-text {
  font-size: 24px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-link:hover {
  color: var(--primary-color);
}

.header-actions {
  display: flex;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
  background: var(--bg-light);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--border-color);
}

.btn-large {
  padding: 14px 28px;
  font-size: 16px;
}

.btn-xlarge {
  padding: 16px 40px;
  font-size: 18px;
}

.btn-link {
  color: var(--primary-color);
  background: transparent;
  padding: 0;
}

.btn-link:hover {
  text-decoration: underline;
}

/* Hero Section */
.hero {
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.15) 100%);
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-color);
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Section Common */
.section-title {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 40px;
}

/* Workflow Section */
.workflow-section {
  padding: 80px 0;
  background: var(--bg-white);
}

.workflow-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.workflow-step {
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-light);
  border-radius: 12px;
  min-width: 120px;
}

.step-icon {
  font-size: 32px;
  margin-bottom: 8px;
}

.step-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.step-desc {
  font-size: 12px;
  color: var(--text-muted);
}

.step-arrow {
  font-size: 24px;
  color: var(--text-muted);
}

.workflow-highlights {
  display: flex;
  gap: 32px;
  justify-content: center;
  flex-wrap: wrap;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.highlight-icon {
  font-size: 20px;
}

/* Prompts Section */
.prompts-section {
  padding: 80px 0;
  background: var(--bg-light);
}

.platform-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.platform-tab {
  padding: 8px 20px;
  border: none;
  background: var(--bg-white);
  color: var(--text-secondary);
  border-radius: 20px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.3s;
}

.platform-tab:hover {
  background: var(--border-color);
}

.platform-tab.active {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.prompts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.prompt-card {
  background: var(--bg-white);
  border-radius: 12px;
  padding: 24px;
  cursor: pointer;
  transition: all 0.3s;
  border: 1px solid var(--border-color);
}

.prompt-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.prompt-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.prompt-platform {
  font-size: 24px;
}

.prompt-name {
  font-weight: 600;
  font-size: 16px;
}

.prompt-badge {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  margin-left: auto;
}

.prompt-desc {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 16px;
}

.prompt-stats {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
}

.prompts-cta {
  text-align: center;
}

/* Features Section */
.features-section {
  padding: 80px 0;
  background: var(--bg-white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 32px;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.feature-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-desc {
  color: var(--text-secondary);
  font-size: 14px;
}

/* CTA Section */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.cta-title {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

.cta-subtitle {
  font-size: 18px;
  text-align: center;
  margin-bottom: 32px;
  opacity: 0.9;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

.cta-actions .btn-primary {
  background: white;
  color: var(--primary-color);
}

.cta-actions .btn-link {
  color: white;
}

/* Footer */
.footer {
  padding: 40px 0;
  background: var(--bg-light);
  border-top: 1px solid var(--border-color);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-logo .logo-text {
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
}

.footer-link:hover {
  color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
}

.modal.active {
  display: block;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
}

.modal-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-white);
  border-radius: 16px;
  width: 95%;
  max-width: 900px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 40px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-light);
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--border-color);
}

.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

/* Prompt Detail Enhanced */
.prompt-detail {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.detail-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.detail-platform {
  font-size: 36px;
  flex-shrink: 0;
}

.detail-title {
  flex: 1;
}

.detail-title h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.detail-stats {
  display: flex;
  gap: 24px;
  color: var(--text-muted);
  font-size: 14px;
}

.detail-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.detail-section h3 {
  font-size: 16px;
  color: var(--text-primary);
}

.detail-section p {
  color: var(--text-secondary);
  line-height: 1.8;
}

.content-full {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  line-height: 1.8;
  max-height: 400px;
  overflow-y: auto;
}

.variable-section {
  background: #fff9e6;
  border: 1px solid #e6a23c;
  border-radius: 12px;
  padding: 20px;
}

.variable-inputs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
  margin-top: 12px;
}

.variable-input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.variable-input-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.variable-input-group input {
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.3s;
}

.variable-input-group input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.detail-actions {
  display: flex;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
}

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

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

.btn-webai {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
}

.btn-webai:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.copy-success {
  color: var(--success-color);
  font-size: 14px;
  display: none;
  align-items: center;
  gap: 4px;
}

.copy-success.show {
  display: inline-flex;
}

/* Responsive */
@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .workflow-steps {
    flex-direction: column;
  }

  .step-arrow {
    transform: rotate(90deg);
  }

  .section-title {
    font-size: 24px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

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

/* Scenarios Section */
.scenarios-section {
  padding: 80px 0;
  background: var(--bg-light);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 32px;
}

.scenario-card {
  background: var(--bg-white);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
  border: 1px solid var(--border-color);
}

.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.scenario-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.scenario-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.scenario-desc {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.scenario-benefits {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.benefit-icon {
  color: var(--success-color);
  font-size: 16px;
}