html, body {
    margin: 0;
    padding: 0;
    background: #f1f1f1;
}
* {
    box-sizing: border-box;
}
:root {
    --max-width: 1160px;
    --default-width: 80%;
}
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #fff;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10086;
    box-shadow: 0 0 10px #c4c4d4;
}
#header-inner {
    width: var(--default-width);
    max-width: var(--max-width);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
#header-inner img {
    vertical-align: middle;
    height: 32px;
}
#header-navs {
    display: flex;
    gap: 15px;
}
#header-inner a {
    --color: #555575;
    color: inherit;
    text-decoration: inherit;
    color: var(--color);
    font-size: 17px;
    /* 小巧思 */
    display: inline-block;
    padding: 3px 5px;
    background: linear-gradient(to right, var(--color), var(--color));
    background-size: 0 1px;
    background-repeat: no-repeat;
    background-position: center bottom;
    transition: all 0.3s;
}
#header-inner a:hover {
    background-size: 100% 2px;
}
#header-inner a.focused {
    --color: #7e58c5;
}
#first-page {
    background: linear-gradient(130deg, #b2d2f7, #e7f0f7);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 0;
}
#first-page-inner {
    width: var(--default-width);
    max-width: var(--max-width);
}
#first-page-inner h1 {
    color: #7e58c5;
    font-size: 41px;
    letter-spacing: 9px;
    /* 要是感觉粗体不好看就把下面这行启用 */
    /* font-weight: 300; */
    margin: 10px 0;
    transform: translateX(9px);
}
#first-page-inner .btn {
    border-radius: 7px;
    font-size: 17px;
    text-decoration: none;
    color: white;
    background: #7e58c5;
    /* font-weight: bold; */
    padding: 9px 19px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin: 25px 10px 10px;
    font-weight: bold;
    box-shadow: 0 5px 10px #aaaabd;
}
#first-page-inner .home-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}
#first-page-inner .btn-contact {
    background: #6d7b91;
}
#first-page-inner .btn-taobao {
    background: #FF5000;
}
#footer {
    background: #e4e4e4;
    text-align: center;
    line-height: 36px;
    padding: 32px 0;
    color: #555575;
}
@media (max-width: 860px) {
    #first-page-inner .home-actions {
        gap: 10px;
    }
}