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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f2f5;
    padding: 30px;
    color: #333;
}

.container {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    padding: 30px;
    max-width: 650px;
    margin: 0 auto;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.container:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

h2 {
    color: #2c3e50;
    margin-bottom: 25px;
    font-size: 20px;
    border-bottom: 2px solid #e8f4f8;
    padding-bottom: 12px;
    font-weight: 600;
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #555;
    font-weight: 500;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background-color: #f9fafb;
}

input[type="text"]:focus,
input[type="number"]:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
    background-color: white;
}

.file-input {
    display: flex;
    gap: 12px;
    align-items: center;
}

.file-input input[type="text"] {
    flex: 1;
}

.key-fields {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.toggle-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
}

.toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #e0e0e0;
    transition: .4s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

input:checked + .toggle-slider {
    background-color: #3498db;
}

input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

small {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: #888;
    line-height: 1.4;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

.btn {
    padding: 10px 20px;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    background-color: #f5f5f5;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 80px;
    text-align: center;
}

.btn:hover {
    background-color: #e8f4f8;
    border-color: #3498db;
    transform: translateY(-1px);
}

.btn-confirm {
    background-color: #27ae60;
    color: white;
    border-color: #27ae60;
}

.btn-confirm:hover {
    background-color: #219a52;
    border-color: #219a52;
}

.btn-cancel {
    background-color: #f8f9fa;
    color: #555;
    border-color: #d0d7de;
}

.btn-cancel:hover {
    background-color: #e9ecef;
    border-color: #adb5bd;
}

.btn-reset {
    background-color: #f8f9fa;
    color: #555;
    border-color: #d0d7de;
    margin-right: auto;
}

.btn-reset:hover {
    background-color: #e9ecef;
    border-color: #adb5bd;
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: 20px;
    }
    
    .container {
        padding: 20px;
    }
    
    .key-fields {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
    }
}