body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: #f7f8fa;
    color: #333;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
.helmcontainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 10px;
    box-sizing: border-box;
}
.helmheader {
    background-color: #ffffff;
    border-bottom: 2px solid #e50914;
    position: sticky;
    top: 0;
    z-index: 999;
}
.helmheader .helminner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    height: 56px;
}
.helmlogo img {
    height: 24px;
    vertical-align: middle;
}
.helmnav {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 20px;
}
.helmnav li a {
    color: #555;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}
.helmnav li a:hover, .helmnav li a.helmactive {
    color: #e50914;
    border-bottom: 2px solid #e50914;
    padding-bottom: 16px;
}
.helmnoticebar {
    background-color: #ffffff;
    border: 1px solid #e3e4e6;
    padding: 10px 15px;
    margin: 10px auto 20px;
    border-radius: 4px;
    font-size: 13px;
    color: #666;
    display: flex;
    align-items: center;
}
.helmnoticebar::before {
    content: "公告";
    background-color: #e50914;
    color: #fff;
    padding: 2px 6px;
    font-size: 11px;
    border-radius: 2px;
    margin-right: 10px;
}
.helmsectitle {
    font-size: 15px;
    font-weight: bold;
    color: #111;
    margin: 25px 0 15px;
    border-left: 3px solid #e50914;
    padding-left: 10px;
    text-transform: uppercase;
}
.helmgridone {
    display: grid;
    grid-template-columns: 2fr 1.2fr;
    gap: 20px;
    margin-bottom: 25px;
}
.helmoneleft, .helmoneright {
    background: #ffffff;
    border: 1px solid #e3e4e6;
    border-radius: 4px;
    padding: 15px;
}
.helmonegrid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}
.helmcardone {
    background: #ffffff;
    border: 1px solid #f0f0f0;
    padding: 10px;
    text-decoration: none;
    border-radius: 4px;
    text-align: center;
}
.helmcardone img {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 8px;
}
.helmtitleone {
    font-size: 12px;
    color: #333;
    font-weight: bold;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.helmpriceone {
    color: #e50914;
    font-weight: bold;
    font-size: 12px;
    margin-top: 4px;
}
.helmrankitem {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    padding: 8px 0;
}
.helmranknum {
    background: #e50914;
    color: #fff;
    font-size: 11px;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
}
.helmranktext {
    font-size: 12px;
    color: #555;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.helmgridtwo {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
}
.helmtwoleft, .helmtworight {
    background: #ffffff;
    border: 1px solid #e3e4e6;
    border-radius: 4px;
    padding: 15px;
}
.helmtwogrid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}
.helmcardtwo {
    background: #ffffff;
    border: 1px solid #f0f0f0;
    padding: 10px;
    text-decoration: none;
    border-radius: 4px;
    text-align: center;
}
.helmcardtwo img {
    width: 36px;
    height: 36px;
    object-fit: cover;
    border-radius: 2px;
    margin-bottom: 6px;
}
.helmtitletwo {
    font-size: 11px;
    color: #555;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.helmpricetwo {
    color: #e50914;
    font-weight: bold;
    font-size: 11px;
    margin-top: 4px;
}
.helmtworow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px dashed #f0f0f0;
}
.helmtworow:last-child {
    border-bottom: none;
}
.helmtworow img {
    width: 24px;
    height: 24px;
    object-fit: cover;
    border-radius: 2px;
    margin-right: 10px;
}
.helmtwoname {
    font-size: 12px;
    color: #555;
    text-decoration: none;
    flex-grow: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.helmgridthree {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    margin-bottom: 25px;
}
.helmcardsix {
    background: #ffffff;
    border: 1px solid #e3e4e6;
    border-radius: 4px;
    padding: 10px;
    text-decoration: none;
    text-align: center;
}
.helmcardsix img {
    width: 32px;
    height: 32px;
    object-fit: cover;
    border-radius: 2px;
    margin-bottom: 6px;
}
.helmtitlesix {
    font-size: 11px;
    color: #666;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.helmpricesix {
    color: #e50914;
    font-size: 12px;
    font-weight: bold;
    margin-top: 4px;
}
.helmdetailwrap {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-top: 20px;
}
.helmcard {
    background: #ffffff;
    border: 1px solid #e3e4e6;
    border-radius: 4px;
    padding: 20px;
}
.helmprodtitle {
    font-size: 20px;
    font-weight: bold;
    color: #111;
    margin-bottom: 12px;
}
.helmmeta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: #888;
    border-bottom: 1px dashed #e3e4e6;
    padding-bottom: 10px;
    margin-bottom: 20px;
}
.helmfield {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}
.helmfield label {
    width: 100px;
    font-size: 13px;
    color: #555;
}
.helmfield input, .helmfield select {
    flex: 1;
    height: 38px;
    border: 1px solid #e3e4e6;
    border-radius: 4px;
    padding: 0 10px;
    outline: none;
    box-sizing: border-box;
}
.helmfield input:focus {
    border-color: #e50914;
}
.helmbuybtn {
    width: 100%;
    height: 44px;
    background: #e50914;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}
.helmbuybtn:hover {
    background: #b3070f;
}
.helmfooter {
    background: #1a1a1a;
    border-top: 3px solid #e50914;
    padding: 30px 0;
    text-align: center;
    margin-top: 40px;
}
.helmfooterlinks {
    margin-bottom: 12px;
}
.helmfooterlinks a {
    color: #bbb;
    text-decoration: none;
    font-size: 13px;
    margin: 0 10px;
}
.helmfooterlinks a:hover {
    color: #ffffff;
}
.helmcopyright {
    color: #777;
    font-size: 11px;
}
.helmorderbox {
    background: #ffffff;
    border: 1px solid #e3e4e6;
    border-radius: 4px;
    padding: 15px;
    margin-bottom: 12px;
}
.helmkami {
    color: #2fba2f;
    font-weight: bold;
}
@media (max-width: 768px) {
    .helmgridone { grid-template-columns: 1fr; }
    .helmgridtwo { grid-template-columns: 1fr; }
    .helmgridthree { grid-template-columns: repeat(3, 1fr); }
    .helmdetailwrap { grid-template-columns: 1fr; }
    .helmtwogrid { grid-template-columns: repeat(2, 1fr); }
}