/* 页面标题样式 */
.page-title {
    background-color: #f8f8f8;
    padding: 40px 0;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.page-title h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 10px;
}

.page-title p {
    color: #666;
    font-size: 16px;
}

/* 通用标题样式 */
section h3 {
    font-size: 28px;
    color: #333;
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

section h3::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -10px;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background-color: #c41230;
}

/* 工艺流程部分样式 */
.process {
    padding: 60px 0;
    background-color: #fff;
}

.process-steps {
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
    gap: 40px;
}

.step:nth-child(even) {
    flex-direction: row-reverse;
}

.step-image {
    flex: 1;
}

.step-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 24px;
    color: #333;
    margin-bottom: 15px;
    position: relative;
    padding-left: 15px;
}

.step-content h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background-color: #c41230;
}

.step-content p {
    color: #666;
    line-height: 1.8;
}

/* 工具介绍部分样式 */
.tools {
    padding: 60px 0;
    background-color: #f8f8f8;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.tool-item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.tool-item:hover {
    transform: translateY(-5px);
}

.tool-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.tool-item h4 {
    font-size: 18px;
    color: #333;
    margin: 15px;
}

.tool-item p {
    color: #666;
    margin: 0 15px 15px;
    font-size: 14px;
    line-height: 1.6;
}

/* 技法详解部分样式 */
.techniques {
    padding: 60px 0;
    background-color: #fff;
}

.technique-list {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.technique-item {
    display: flex;
    gap: 40px;
    margin-bottom: 60px;
    align-items: center;
}

.technique-item:nth-child(even) {
    flex-direction: row-reverse;
}

.technique-image {
    flex: 1;
}

.technique-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.technique-content {
    flex: 1;
}

.technique-content h4 {
    font-size: 24px;
    color: #333;
    margin-bottom: 15px;
}

.technique-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.technique-details {
    background-color: #f8f8f8;
    padding: 20px;
    border-radius: 8px;
}

.technique-details h5 {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}

.technique-details ul {
    list-style: disc;
    margin-left: 20px;
}

.technique-details li {
    color: #666;
    line-height: 1.6;
    margin-bottom: 5px;
}

/* 玉石种类部分样式 */
.materials {
    padding: 60px 0;
    background-color: #f8f8f8;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.material-item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.material-item:hover {
    transform: translateY(-5px);
}

.material-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.material-info {
    padding: 20px;
}

.material-info h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.material-info p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .step,
    .step:nth-child(even),
    .technique-item,
    .technique-item:nth-child(even) {
        flex-direction: column;
    }

    .tools-grid,
    .materials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .step-content h4 {
        margin-top: 20px;
    }

    .technique-content {
        margin-top: 20px;
    }
}