demo-container {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.demo-container {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f5f5f5;
    padding: 20px;
}

/* 弹窗遮罩层 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
    display: flex;
}

/* 弹窗容器 */
.modal-container {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    animation: slideIn 0.3s ease;
    display: flex;
    flex-direction: column;
}

/* 弹窗头部 */
.modal-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 20px;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    color: #6b7280;
}

.modal-close:hover {
    background-color: #f3f4f6;
    color: #374151;
}

/* 弹窗内容 */
.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
    background-color: #fff;
}

.form-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-select {
    appearance: none;
    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='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.form-checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.error-message {
    color: #ef4444;
    font-size: 12px;
    margin-top: 4px;
    display: none;
}

.form-group.error .form-input {
    border-color: #ef4444;
}

.form-group.error .error-message {
    display: block;
}

/* 弹窗底部 */
.modal-footer {
    padding: 16px 24px 24px;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    border-top: 1px solid #e5e7eb;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background-color: #3b82f6;
    color: white;
}

.btn-primary:hover {
    background-color: #2563eb;
}

.btn-secondary {
    background-color: #f3f4f6;
    color: #374151;
}

.btn-secondary:hover {
    background-color: #e5e7eb;
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 演示页面样式 */
.demo-container {
    max-width: 1200px;
    margin: 0 auto;
}

.demo-header {
    background-color: white;
    padding: 24px;
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.demo-header h1 {
    font-size: 28px;
    color: #1f2937;
    margin-bottom: 8px;
}

.demo-header p {
    color: #6b7280;
    line-height: 1.6;
}

.demo-section {
    background-color: white;
    padding: 24px;
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.demo-section h2 {
    font-size: 20px;
    color: #1f2937;
    margin-bottom: 16px;
}

.demo-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.code-block {
    background-color: #f3f4f6;
    padding: 16px;
    border-radius: 8px;
    margin-top: 16px;
    overflow-x: auto;
}

.code-block pre {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    color: #374151;
    margin: 0;
}

.success-message {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #10b981;
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: none;
    animation: slideInRight 0.3s ease;
}

.success-message.show {
    display: block;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}