/** {*/
/*    margin: 0;*/
/*    padding: 0;*/
/*    box-sizing: border-box;*/
/*    font-family: "Microsoft Yahei", sans-serif;*/
/*}*/
body {
    background-color: #f0f5ff;
}
.section-wrap {
    padding: 60px 20px;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}
.section-title {
    font-size: 42px;
    color: #333;
    margin-bottom: 20px;
    font-weight: bold;
}
.section-subtitle {
    font-size: 24px;
    color: #666;
    margin-bottom: 60px;
}
.problem-list {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}
.problem-item {
    background-color: #fff;
    border-radius: 20px;
    width: 260px;
    padding: 40px 20px;
    text-align: center;
}
.icon-img {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    object-fit: contain;
}
.problem-title {
    font-size: 22px;
    color: #333;
    margin-bottom: 16px;
    font-weight: bold;
}
.problem-desc {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}
.button-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.btn-primary {
    background-color: #dd181f;
    color: #fff;
    border: none;
    padding: 16px 60px;
    border-radius: 30px;
    font-size: 18px;
    cursor: pointer;
}
.btn-outline {
    background-color: transparent;
    color: #dd181f;
    border: 1px solid #dd181f;
    padding: 16px 60px;
    border-radius: 30px;
    font-size: 18px;
    cursor: pointer;
}
/* 悬浮状态：鼠标滑过时的样式 */
.btn-outline:hover {
    background-color: #2691CC; /* 背景色变为 #2691CC */
    color: #FFFFFF; /* 文字颜色改为白色（对比更清晰，可选） */
    border-color: #2691CC; /* 边框色同步（可选） */
}
@media (max-width: 768px) {
    .section-title {
        font-size: 28px;
    }
    .section-subtitle {
        font-size: 18px;
    }
    .problem-item {
        width: 100%;
    }
}