/* ============================================
   定制需求提交页 - 页面专属样式
   ============================================ */

/* 页面头部 */
.form-page-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.form-header-accent {
  width: 64px;
  height: 4px;
  background-color: hsl(var(--primary));
  margin: 0 auto 1.5rem;
}

.form-header-content {
  max-width: 800px;
  margin: 0 auto;
}

.form-header-title {
  font-family: var(--font-sans);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #222222;
  font-size: 1.875rem;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.form-header-desc {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 表单容器 */
.form-page {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* 表单卡片 */
.form-card {
  background-color: hsl(var(--card) / 0.5);
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
}

.form-card:hover {
  border-color: hsl(var(--primary) / 0.5);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.form-card-header {
  background: #ffffff;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1.5rem;
  border-bottom: 1px solid hsl(var(--border));
}

.form-card-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: hsl(var(--primary) / 0.1);
  border-radius: var(--radius);
  color: hsl(var(--primary));
}

.form-card-titles {
  flex: 1;
}

.form-card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: #222222;
  margin-bottom: 0.25rem;
}

.form-card-desc {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

.form-card-content {
  background: #ffffff;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-card-submit .form-card-content {
  padding-top: 1.5rem;
  border-top: none;
}

/* 表单组 */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: #222222;
}

.form-label .required {
  color: hsl(0 84% 60%);
  margin-left: 2px;
}

/* 表单输入框 */
.form-input {
  height: 40px;
  padding: 0 12px;
  background-color: #ffffff;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: hsl(var(--foreground));
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input::placeholder {
  color: hsl(var(--muted-foreground));
}

.form-input:focus {
  outline: none;
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 3px hsl(var(--primary) / 0.15);
}

.form-input.error {
  border-color: hsl(0 84% 60%);
}

/* 下拉选择框 */
.select-wrapper {
  position: relative;
}

.form-select {
  width: 100%;
  height: 40px;
  padding: 0 40px 0 12px;
  background-color: hsl(var(--background));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: hsl(var(--foreground));
  appearance: none;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-select:focus {
  outline: none;
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 3px hsl(var(--primary) / 0.15);
}

.form-select.error {
  border-color: hsl(0 84% 60%);
}

.select-arrow {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: hsl(var(--muted-foreground));
  pointer-events: none;
}

/* 文本域 */
.form-textarea {
  padding: 12px;
  background-color: #ffffff;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: hsl(var(--foreground));
  resize: vertical;
  min-height: 80px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-textarea::placeholder {
  color: hsl(var(--muted-foreground));
}

.form-textarea:focus {
  outline: none;
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 3px hsl(var(--primary) / 0.15);
}

.form-textarea.error {
  border-color: hsl(0 84% 60%);
}

/* 提示文本 */
.form-hint {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
}

/* 错误文本 */
.form-error {
  font-size: 0.75rem;
  color: hsl(0 84% 60%);
  display: none;
  margin-top: 0.5rem;
}

.form-error.show {
  display: block;
}

/* 单选按钮组 */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.radio-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.2s;
}

.radio-item:hover {
  background-color: #99b2e5;
}

.radio-item.selected {
  background-color: #99b2e5;
}

.radio-circle {
  position: relative;
  width: 16px;
  height: 16px;
  border: 2px solid hsl(var(--primary));
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s;
}

.radio-item.selected .radio-circle {
  border-color: hsl(var(--primary));
}

.radio-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: hsl(var(--primary));
  opacity: 0;
  transform: scale(0);
  transition: opacity 0.2s, transform 0.2s;
}

.radio-item.selected .radio-dot {
  opacity: 1;
  transform: scale(1);
}

.radio-item span:last-child {
  font-size: 0.875rem;
  color: #222222;
}

/* 复选框网格 */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .checkbox-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
}

.checkbox-item:hover {
  border-color: hsl(var(--primary) / 0.5);
  background-color: hsl(var(--primary) / 0.05);
}

.checkbox-item input {
  display: none;
}

.checkbox-box {
  width: 16px;
  height: 16px;
  border: 2px solid hsl(var(--border));
  border-radius: 3px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, background-color 0.2s;
}

.checkbox-box::after {
  content: '';
  width: 8px;
  height: 8px;
  background-color: white;
  border-radius: 2px;
  opacity: 0;
  transform: scale(0);
  transition: opacity 0.2s, transform 0.2s;
}

.checkbox-item input:checked + .checkbox-box {
  border-color: hsl(var(--primary));
  background-color: hsl(var(--primary));
}

.checkbox-item input:checked + .checkbox-box::after {
  opacity: 1;
  transform: scale(1);
}

.checkbox-item span:last-child {
  font-size: 0.875rem;
  color: #222222;
}

/* 复选框选中状态 - 通用 */
.checkbox-item input:checked + .checkbox-box {
  border-color: hsl(var(--primary));
  background-color: hsl(var(--primary));
}

.checkbox-item input:checked + .checkbox-box::after {
  opacity: 1;
  transform: scale(1);
}

/* 协议复选框选中状态 */
.checkbox-agreement input:checked + .checkbox-box {
  border-color: hsl(var(--primary));
  background-color: hsl(var(--primary));
}

.checkbox-agreement input:checked + .checkbox-box::after {
  opacity: 1;
  transform: scale(1);
}

/* 文件上传区域 */
.file-upload-zone {
  position: relative;
  border: 2px dashed hsl(var(--border));
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
}

.file-upload-zone:hover {
  border-color: hsl(var(--primary) / 0.5);
  background-color: hsl(var(--primary) / 0.05);
}

.file-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-upload-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
}

.upload-icon {
  color: hsl(var(--muted-foreground));
  transition: color 0.2s;
}

.file-upload-zone:hover .upload-icon {
  color: hsl(var(--primary));
}

.upload-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: #222222;
}

.upload-hint {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
}

/* 文件列表 */
.file-list {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background-color: hsl(var(--secondary));
  border-radius: var(--radius);
  font-size: 0.875rem;
}

.file-item-icon {
  width: 16px;
  height: 16px;
  color: hsl(var(--muted-foreground));
}

.file-item-name {
  flex: 1;
  color: hsl(var(--foreground));
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-item-remove {
  width: 16px;
  height: 16px;
  color: hsl(var(--muted-foreground));
  cursor: pointer;
  transition: color 0.2s;
}

.file-item-remove:hover {
  color: hsl(0 84% 60%);
}

/* 协议复选框 */
.checkbox-agreement {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background-color: hsl(var(--secondary) / 0.5);
  border-radius: var(--radius);
  cursor: pointer;
}

.checkbox-agreement input {
  display: none;
}

.checkbox-agreement .checkbox-box {
  margin-top: 2px;
  flex-shrink: 0;
}

.agreement-text {
  font-size: 0.875rem;
  color: hsl(var(--foreground));
  line-height: 1.5;
}

.agreement-link {
  color: hsl(var(--primary));
  text-decoration: underline;
  transition: color 0.2s;
}

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

/* 表单操作按钮 */
.form-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1rem;
}

@media (min-width: 640px) {
  .form-actions {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .form-actions .btn-secondary {
    order: 2;
  }
  
  .form-actions .btn-primary {
    order: 1;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 48px;
  padding: 0 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s, opacity 0.2s;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: hsl(var(--primary-hover));
}

.btn-secondary {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
}

.btn-secondary:hover:not(:disabled) {
  background-color: hsl(var(--secondary) / 0.8);
}

/* 提示信息 */
.form-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background-color: hsl(var(--primary) / 0.1);
  border: 1px solid hsl(var(--primary) / 0.2);
  border-radius: var(--radius);
  margin-top: 1rem;
}

.form-notice svg {
  flex-shrink: 0;
  color: hsl(var(--primary));
}

.form-notice p {
  font-size: 0.875rem;
  color: #222222;
  line-height: 1.6;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .form-header-title {
    font-size: 1.5rem;
  }

  .form-header-desc {
    font-size: 1rem;
  }

  .form-card-header {
    padding: 1rem;
  }

  .form-card-content {
    padding: 1rem;
  }

  .form-card-title {
    font-size: 1.125rem;
  }
}