.home--icon {
    z-index: 10;
}
.go-top {
    position: fixed;
    z-index: 999;
    right: 10px;
    bottom: 90px;
    transform: translateY(-50%);
    padding: 10px 12px;
    color: #fff;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    opacity: 0;
    transition: opacity 0.4s linear;
    border-radius: 100px;
    cursor: pointer;
    display: none;
}

.go-top.is-visible {
    display: block;
    opacity: 1;
}

.go-top:focus,
.go-top i:focus {
    outline: 0;
}

/* fix umall "position:fixed" not working */
.main,.side {
    transform: none;
}

/* style.css */
/* reset */
/* ======================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
*:before, *:after {
    box-sizing: border-box; }
a {
    display: block;
    text-decoration: none;
}
ul {
    list-style: none;
}
img {
    width: 100%;
    border: 0;
    vertical-align: middle;
    display: inline-block;
}
article,
main,
nav,
section {
    display: block;
}
body {
    margin:0;
    /*background-color:#f4d7d3;*/
    font-family: PingFangTC-regular, Roboto, "LiHei Pro", "Source Han Sans TC", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Microsoft JhengHei", sans-serif;
}
.clearfix::after {
    content: '';
    display: block;
    clear: both;
}
.layout--main {
    position: relative;
    z-index: 0;
    max-width: 960px;
    margin-left: auto;
    margin-right: auto;
}
/* 主視覺 */
/* ======================================== */
.logo a,
.sp__visual a{
    display: block;
}
.home--logo {
    z-index: 1;
}
.logo {
    position: absolute;
    z-index: 1;
    top: 1%;
    left: 1%;
    width: 30%;
    max-width: 220px;
}
.sp__visual {
    position: relative;
    z-index: 0;
    width: 100%;
}
.visual--auto {
    display: flex;
    flex-wrap: wrap;
}
.visual__fragment {
    float: left;
    position: relative;
    z-index: 0;
    max-width: 100%;
    vertical-align: middle;
}
@media screen and (min-width: 960px) {
    .visual__fragment {
        width: auto;
    }
}
/* 組版nav */
/* ======================================== */
.build__anchor {
    display: flex;
    flex-wrap: wrap;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
}
/* 設定組版nav樣式 */
.build__anchor {
    border: 1px solid #fee;
}
.build__anchor a {
    display: block;
    padding: 10px 5px;
    color: #fff;
    background-color: #faa;
    border: 1px solid #fee;
    font-size: 30px;
    transition: transform 0.16s;
}
.build__anchor a:hover,
.build__anchor a:active {
    filter: brightness(105%) contrast(110%);
    transform: scale(1.02);
}
/* 設定組版nav寬度(12.5% = 一列8個) */
.build-nav__item {
    float: left;
    width: 12.5%;
    flex: 1 1 12.5%;
    line-height: 200%;
}
@media screen and (max-width: 820px) {
    /* 設定手機置底選項高度(可不設) */
    /*body {
      padding-bottom: 108px;
    }*/
    .build__nav {
        position: fixed;
        z-index: 5;
        bottom: 0;
        left: 0;
        width: 100%;
    }
    /* 設定手機組版nav樣式(可不設) */
    .build__anchor {
        border: 1px solid #faa;
    }
    .build__anchor a {
        color: #faa;
        background-color: #fff;
        border: 1px solid #faa;
        font-size: 18px;
    }
    /* 設定手機組版nav寬度(可不設) */
    .build-nav__item {
        width: 25%;
        flex: 1 1 25%;
    }
}
/* 自適應banner組 */
/* ======================================== */
.banner__title {
    height: 65px;
    background: center top no-repeat;
}
.banner__wrap {
    display: flex;
    flex-wrap: wrap;
}
.banner__item {
    transition: all 0.3s;
}
.banner__item img {
    width: 100%;
}
/* 設定一列2個(50%，3個就33.33%，4個就25%) */
.bn-w2m1 .banner__item {
    float: left;
    width: 50%;
    flex: 1 1 50%;
}
/* 設定點下去與hover動畫 */
.bn-w2m1 .banner__item:hover,
.bn-w2m1 .banner__item:active {
    /* 變小(<1時變小) */
    transform: scale(0.98);
    /* 亮度調暗(<100%時變暗) */
    /*filter: brightness(95%);*/
}

/* 設定一列4個 */
.bn-w4m2 .banner__item {
    float: left;
    width: 25%;
    flex: 1 1 25%;
}
/* 設定點下去與hover動畫 */
.bn-w4m2 .banner__item:hover,
.bn-w4m2 .banner__item:active {
    /* 變大(>1時變大) */
    transform: scale(1.05);
    /* 亮度調亮(>100%時變亮) */
    filter: brightness(115%);
}
@media screen and (max-width: 1024px) {
    /* 設定手機時一列2個 */
    .bn-w4m2 .banner__item {
        width: 50%;
        flex: 1 1 50%;
    }
}
/* 設定一列3個 */
.bn-w3m1 .banner__item {
    width: 33.33%;
    flex: 1 1 33.33%;
}
/* 設定點下去與hover動畫 */
.bn-w3m1 .banner__item:hover,
.bn-w3m1 .banner__item:active {
    /* 變大(>1時變大) */
    transform: scale(1.05);
    /* 亮度調亮(>100%時變亮) */
    filter: brightness(115%);
}
@media screen and (max-width: 1024px) {
    /* 設定手機時一列1個 */
    .bn-w3m1 .banner__item {
        width: 100%;
        flex: 1 1 100%;
    }
}