/* contact.css */
.contact-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 80px 20px;
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    overflow: hidden;
}

/* 表单样式 */
.contact-form {
    padding: 50px;
    background: #fff;
}

.section-title {
    font-size: 2.5rem;
    color: #1a1a1a;
    margin-bottom: 40px;
    position: relative;
    padding-left: 20px;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 80%;
    background: #0072ff;
    border-radius: 2px;
}

.form-group {
    margin-bottom: 30px;
}

.dual-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.input-field {
    position: relative;
    margin-bottom: 25px;
}

.input-field input, 
.input-field textarea {
    width: 100%;
    padding: 12px 0;
    border: none;
    border-bottom: 2px solid #e0e0e0;
    font-size: 16px;
    transition: all 0.3s ease;
    background: transparent;
}

.input-field label {
    position: absolute;
    left: 0;
    top: 12px;
    color: #666;
    pointer-events: none;
    transition: all 0.3s ease;
}

.input-field input:focus,
.input-field textarea:focus,
.input-field input:valid,
.input-field textarea:valid {
    outline: none;
    border-bottom-color: #0072ff;
}

.input-field input:focus ~ label,
.input-field textarea:focus ~ label,
.input-field input:valid ~ label,
.input-field textarea:valid ~ label {
    transform: translateY(-20px);
    font-size: 12px;
    color: #0072ff;
}

.underline {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #0072ff;
    transition: width 0.3s ease;
}

.input-field input:focus ~ .underline,
.input-field textarea:focus ~ .underline {
    width: 100%;
}

/* 提交按钮 */
.submit-btn {
    background: #0072ff;
    color: white;
    padding: 15px 40px;
    border: none;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,114,255,0.3);
}

.send-icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* 联系信息区域 */
.contact-info {
    padding: 50px;
    background: #f8f9fa;
}

.info-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    display: flex;
    gap: 20px;
    align-items: center;
    transition: transform 0.3s ease;
}

.info-card:hover {
    transform: translateX(10px);
}

.card-icon {
    background: #0072ff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-icon svg {
    width: 24px;
    height: 24px;
    fill: white;
}

.card-content h3 {
    color: #1a1a1a;
    margin-bottom: 8px;
}

.card-content p {
    color: #666;
    line-height: 1.6;
}

/* 地图容器 */
.map-container {
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .contact-form,
    .contact-info {
        padding: 30px;
    }
}

@media (max-width: 576px) {
    .dual-column {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}