.site-topbar {
    height: 42px;
    background: #4b95d9;
    color: #ffffff;
    font-size: 12px;
    font-weight: 400;
}

.site-topbar-inner {
    overflow: hidden;
    line-height: 42px;
}

.site-welcome {
    float: left;
}

.site-platform-link {
    float: right;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 7px;
    padding: 0 14px;
    line-height: 28px;
    background: #0f7dcb;
    border-radius: 0 0 8px 8px;
    font-weight: 400;
}

.site-platform-link-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 6px;
    vertical-align: middle;
}

.site-hero {
    position: relative;
    min-height: 321px;
    background: #7db5ea;
    overflow: hidden;
}

.site-hero-bg {
    position: absolute;
    left: 50%;
    top: 0;
    width: 1920px;
    height: 363px;
    margin-left: -960px;
    max-width: none;
}

.site-hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 18% 58%, rgba(255, 255, 255, 0.26) 0, rgba(255, 255, 255, 0.04) 24%, rgba(255, 255, 255, 0) 25%),
        radial-gradient(circle at 82% 56%, rgba(255, 255, 255, 0.3) 0, rgba(255, 255, 255, 0.05) 18%, rgba(255, 255, 255, 0) 19%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%);
    opacity: 0.8;
}

.site-hero-inner {
    position: relative;
    z-index: 1;
    padding-top: 14px;
    text-align: center;
}

.site-logo {
    width: 112px;
    height: 112px;
    margin: 0 auto;
    overflow: hidden;
    text-align: center;
}

.site-logo img {
    display: block;
    width: 113px;
    height: 112px;
}

.site-title-wrap {
    position: relative;
    display: inline-block;
    margin-top: 24px;
}

.site-title-image {
    display: block;
    width: 895px;
    height: 78px;
}

.site-title {
    position: relative;
    z-index: 2;
    margin: 0;
    color: #ffffff;
    font-family: "AliHanYi", "SourceHanSansCN", sans-serif;
    font-size: 56px;
    line-height: 1.18;
    letter-spacing: 1px;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.24);
}

.site-search {
    position: relative;
    z-index: 9999;
    width: 573px;
    height: 54px;
    margin: 16px auto 0;
    background: #ffffff;
    border-radius: 4px;
    box-shadow: 0 10px 24px rgba(0, 66, 135, 0.16);
    overflow: visible !important;
}

.site-search-select {
    position: relative;
    z-index: 99999;
    float: left;
    width: 158px;
    padding-left: 48px;
    line-height: 54px;
    color: #606266;
    font-size: 16px;
    font-weight: 400;
    text-align: left;
    box-sizing: border-box;
    cursor: pointer;
    overflow: visible;
}

.site-search-select-icon {
    position: absolute;
    right: 18px;
    top: 20px;
    width: 14px;
    height: 14px;
}

.site-search-divider {
    position: absolute;
    left: 158px;
    top: 17px;
    width: 1px;
    height: 20px;
    background: #cccccc;
}

.site-search-input {
    float: left;
    width: 300px;
    height: 54px;
    padding: 0 16px;
    border: 0;
    caret-color: #0273C3;
    color: #757575;
    font-size: 16px;
    line-height: 54px;
    outline: none;
    box-sizing: border-box;
}

.site-search-button {
    display: flex;
    align-items: center;
    justify-content: center;
    float: right;
    width: 115px;
    height: 54px;
    background: linear-gradient(135deg, #0273c4 0%, #0074bf 100%);
    color: #ffffff;
    font-size: 18px;
    text-align: center;
    box-sizing: border-box;
}

.site-search-button:hover {
    background: #FA9728;
}

.site-search-button-icon {
    display: block;
    width: 16px;
    height: 16px;
    margin-right: 8px;
}

.site-search-dropdown {
    display: none;
    position: absolute;
    top: 54px;
    left: 0;
    width: 158px;
    background: #ffffff;
    border: 1px solid #e4e7ed;
    border-top: none;
    border-radius: 0 0 4px 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 99999;
    margin-left: -1px;
    overflow: visible;
}

.site-search-dropdown-item {
    padding: 0 48px;
    line-height: 44px;
    color: #606266;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.site-search-dropdown-item:hover {
    background-color: #f5f7fa;
    color: #0273c4;
}