* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    background-color: #f4f6f9;
    color: #333333;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
}
a {
    color: inherit;
    text-decoration: none;
}
.questioncontainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
.questionheader {
    background: #ffffff;
    border-bottom: 1px solid #e1e8ed;
}
.questiontopbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 65px;
}
.questionlogo img {
    max-height: 42px;
    max-width: 100%;
    object-fit: contain;
}
.questionnavbar {
    background: #1e88e5;
}
.questionnav {
    display: flex;
    align-items: center;
    gap: 5px;
}
.questionnavlink {
    font-size: 15px;
    font-weight: 600;
    color: #ffffff;
    padding: 14px 18px;
    transition: background 0.2s;
}
.questionnavlink:hover, .questionnavlink.active {
    background: #1565c0;
}
.questionsearchinput {
    height: 36px;
    padding: 0 12px;
    border: 1px solid #cccccc;
    border-radius: 4px 0 0 4px;
    outline: none;
    font-size: 13px;
    width: 240px;
}
.questionsearchbtn {
    height: 36px;
    padding: 0 18px;
    background: #1e88e5;
    color: #ffffff;
    border: none;
    font-weight: 700;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}
.questionfeaturebar {
    background: #ffffff;
    border-bottom: 1px solid #e1e8ed;
    padding: 12px 0;
    margin-bottom: 20px;
}
.questionfeaturelist {
    display: flex;
    justify-content: space-around;
    font-size: 13px;
    color: #555555;
    font-weight: 600;
}
.questionnotice {
    background: #ffffff;
    border-left: 4px solid #1e88e5;
    padding: 12px 18px;
    margin: 15px 0;
    border-radius: 4px;
    color: #555555;
    font-size: 13px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.03);
}
.questionsectiontitle {
    font-size: 16px;
    font-weight: 700;
    color: #1e88e5;
    margin: 25px 0 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #1e88e5;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.questiongrid5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-bottom: 25px;
}
.questiongrid4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}
.questioncard {
    background: #ffffff;
    border-radius: 6px;
    border: 1px solid #e1e8ed;
    padding: 12px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.2s;
}
.questioncard:hover {
    border-color: #1e88e5;
    box-shadow: 0 4px 12px rgba(30,136,229,0.12);
}
.questioncardimg {
    width: 100%;
    height: 80px;
    object-fit: contain;
    margin-bottom: 8px;
    display: block;
}
.questioncardtitle {
    font-size: 13px;
    font-weight: 600;
    color: #333333;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 6px;
}
.questionprice {
    color: #e53935;
    font-weight: 700;
}
.questionbadge {
    position: absolute;
    top: 6px;
    right: 6px;
    background: #e53935;
    color: #ffffff;
    font-size: 10px;
    padding: 1px 4px;
    border-radius: 2px;
}
.questionautotag {
    font-size: 10px;
    background: #e3f2fd;
    color: #1e88e5;
    padding: 1px 5px;
    border-radius: 3px;
}
.questionrankgrid3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}
.questionrankbox {
    background: #ffffff;
    border-radius: 6px;
    border: 1px solid #e1e8ed;
    padding: 15px;
}
.questionranktitle {
    font-size: 14px;
    font-weight: 700;
    color: #1e88e5;
    padding-bottom: 8px;
    border-bottom: 1px solid #e1e8ed;
    margin-bottom: 10px;
}
.questionrankitem {
    display: flex;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px dashed #f0f0f0;
    font-size: 12px;
}
.questionrankitem:last-child {
    border-bottom: none;
}
.questionranknum {
    width: 18px;
    height: 18px;
    background: #90a4ae;
    color: #ffffff;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    margin-right: 8px;
}
.questionranknum.top3 {
    background: #e53935;
}
.questionfooter {
    background: #1a232a;
    color: #888888;
    padding: 30px 0;
    margin-top: 40px;
    text-align: center;
    font-size: 13px;
}
.questionfooterlinks {
    margin-bottom: 10px;
}
.questionfooterlinks a {
    color: #cccccc;
}
.questioncardbox {
    background: #ffffff;
    border-radius: 6px;
    border: 1px solid #e1e8ed;
    padding: 25px;
    margin-bottom: 20px;
}
.questionformgroup {
    margin-bottom: 15px;
}
.questionlabel {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: #333333;
}
.questioninput {
    width: 100%;
    height: 40px;
    padding: 0 12px;
    border: 1px solid #cccccc;
    border-radius: 4px;
    outline: none;
}
.questionbtn {
    display: inline-block;
    width: 100%;
    height: 42px;
    line-height: 42px;
    text-align: center;
    background: #1e88e5;
    color: #ffffff;
    border-radius: 4px;
    font-weight: 600;
    border: none;
    cursor: pointer;
}
.questiontabs {
    display: flex;
    border-bottom: 2px solid #eeeeee;
    margin-bottom: 20px;
}
.questiontabitem {
    padding: 10px 20px;
    font-weight: 600;
    color: #666666;
}
.questiontabitem.active {
    color: #1e88e5;
    border-bottom: 2px solid #1e88e5;
    margin-bottom: -2px;
}
@media (max-width: 992px) {
    .questiongrid5 {
        grid-template-columns: repeat(2, 1fr);
    }
    .questiongrid4 {
        grid-template-columns: repeat(2, 1fr);
    }
    .questionrankgrid3 {
        grid-template-columns: 1fr;
    }
}