/* 紧凑版样式 - 针对移动端优化 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #87CEEB 0%, #98FB98 100%);
  min-height: 100vh;
  padding: 8px;
  color: #1D1D1F;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

body::-webkit-scrollbar,
*::-webkit-scrollbar {
  display: none;
}

.container {
  max-width: 500px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(15px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.header {
  text-align: center;
  margin-bottom: 20px;
}

.title {
  font-size: 1.5rem;
  color: #1D1D1F;
  margin-bottom: 6px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.subtitle {
  color: #86868B;
  font-size: 0.9rem;
  margin-bottom: 16px;
  font-weight: 400;
}

.form-section {
  margin-bottom: 20px;
}

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

.form-label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: #1D1D1F;
  font-size: 0.9rem;
}

.form-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  background: rgba(255, 255, 255, 0.8);
  font-family: inherit;
  backdrop-filter: blur(8px);
}

.form-input:focus {
  outline: none;
  border-color: #007AFF;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.15);
}

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

.btn {
  width: 100%;
  padding: 12px;
  background: #007AFF;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 16px;
  box-shadow: 0 2px 6px rgba(0, 122, 255, 0.25);
}

.btn:hover {
  background: #0056CC;
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(0, 122, 255, 0.35);
}

.btn:active {
  transform: translateY(0);
  background: #004499;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  background: #86868B;
}

.result-section {
  margin-top: 20px;
}

.result-title {
  font-size: 1.1rem;
  color: #1D1D1F;
  margin-bottom: 12px;
  text-align: center;
  font-weight: 600;
}

.loading {
  display: none;
  text-align: center;
  color: #007AFF;
  font-style: normal;
  padding: 16px;
  font-weight: 500;
}

.poem-output,
.result-container {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  padding: 16px;
  min-height: 120px;
  backdrop-filter: blur(8px);
}

.poem-output {
  white-space: pre-wrap;
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'KaiTi', '楷体', serif;
  font-size: 1rem;
  line-height: 1.6;
  text-align: center;
  color: #1D1D1F;
  letter-spacing: 0.3px;
}

.result-container {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.result-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 10px;
  padding: 12px;
  backdrop-filter: blur(8px);
}

.card-title {
  font-size: 0.95rem;
  color: #1D1D1F;
  margin-bottom: 8px;
  font-weight: 600;
}

.score-display {
  font-size: 1.8rem;
  font-weight: 700;
  color: #007AFF;
  margin-bottom: 4px;
  text-align: center;
}

.score-desc {
  font-size: 0.85rem;
  color: #86868B;
  text-align: center;
  line-height: 1.3;
}

.meaning-content {
  font-size: 0.9rem;
  color: #1D1D1F;
  line-height: 1.5;
}

.suggestions-container {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  padding: 12px;
  min-height: 100px;
  backdrop-filter: blur(8px);
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.placeholder {
  text-align: center;
  color: #86868B;
  font-style: normal;
  padding: 20px 10px;
  font-weight: 400;
  font-size: 0.85rem;
}

.convention-group-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
  margin: 12px 0 8px 0;
  padding: 8px 12px;
  background: #007AFF;
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0, 122, 255, 0.25);
  grid-column: 1 / -1;
}

.convention-group-title:first-child {
  margin-top: 0;
}

.suggestion-item {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 0;
  transition: all 0.2s ease;
  cursor: pointer;
  position: relative;
  backdrop-filter: blur(8px);
  min-height: 60px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.suggestion-item:hover {
  border-color: rgba(0, 122, 255, 0.3);
  box-shadow: 0 3px 10px rgba(0, 122, 255, 0.15);
  background: rgba(255, 255, 255, 0.95);
}

.variable-name {
  font-family: 'SF Mono', 'Monaco', 'Consolas', 'Courier New', monospace;
  font-size: 0.9rem;
  font-weight: 600;
  color: #1D1D1F;
  margin-bottom: 3px;
  word-break: break-all;
}

.variable-description {
  font-size: 0.8rem;
  color: #86868B;
  line-height: 1.3;
  flex-grow: 1;
}

.copy-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  background: #007AFF;
  color: white;
  border: none;
  border-radius: 4px;
  padding: 3px 6px;
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  opacity: 0;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 122, 255, 0.25);
}

.suggestion-item:hover .copy-btn {
  opacity: 1;
}

.copy-btn:hover {
  background: #0056CC;
  transform: translateY(-1px);
}

.error {
  color: #FF3B30;
  background: rgba(255, 59, 48, 0.1);
  border: 1px solid rgba(255, 59, 48, 0.2);
  padding: 12px;
  border-radius: 8px;
  margin-top: 12px;
  font-weight: 500;
  backdrop-filter: blur(8px);
  font-size: 0.85rem;
}

.success-toast {
  position: fixed;
  top: 15px;
  right: 15px;
  background: #34C759;
  color: white;
  padding: 8px 16px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(52, 199, 89, 0.3);
  z-index: 1000;
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s ease;
  font-weight: 600;
  backdrop-filter: blur(15px);
  font-size: 0.85rem;
}

.success-toast.show {
  opacity: 1;
  transform: translateX(0);
}

/* 移动端优化 */
@media (max-width: 480px) {
  body {
    padding: 4px;
  }

  .container {
    padding: 12px;
    border-radius: 12px;
  }

  .title {
    font-size: 1.3rem;
  }

  .subtitle {
    font-size: 0.85rem;
    margin-bottom: 12px;
  }

  .form-group {
    margin-bottom: 12px;
  }

  .form-input {
    padding: 8px 10px;
    font-size: 0.85rem;
  }

  .textarea {
    min-height: 70px;
  }

  .btn {
    padding: 10px;
    font-size: 0.85rem;
  }

  .result-section {
    margin-top: 16px;
  }

  .poem-output,
  .result-container,
  .suggestions-container {
    padding: 12px;
    min-height: 100px;
  }

  .poem-output {
    font-size: 0.9rem;
  }

  .result-card {
    padding: 10px;
  }

  .suggestion-item {
    padding: 8px;
    min-height: 50px;
  }

  .variable-name {
    font-size: 0.85rem;
  }

  .variable-description {
    font-size: 0.75rem;
  }

  .copy-btn {
    position: static;
    opacity: 1;
    margin-top: 4px;
    width: 100%;
    padding: 4px 6px;
    font-size: 0.7rem;
  }
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.suggestion-item,
.result-card {
  animation: fadeIn 0.3s ease;
}

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

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}