body,
html {
    width: 100%;
    margin: 0;
    padding: 0;
}


/*全部*/

.all {
    overflow: hidden;
}

.top-main {
    width: 100%;
    height: auto;
    position: relative;
    overflow: hidden;
    margin: 4vw 0 0 0;
}

.main1 {
    width: 100%;
    height: 82vw;
    position: absolute;
    left: 0;
    top: 0;
}

.main1-title {
    width: 79%;
    font-family: 'Noto Serif TC', serif;
    color: #000000;
    margin: 0 auto 8.5vw auto;
    padding: 8vw 0 0 0;
    position: relative;
}

.main1-title h1 {
    position: relative;
    margin: 0 0 0.8vw 0;
    font-weight: 600;
    font-size: 0.91vw;
    text-align: center;
    letter-spacing: 0.3vw;
}

.main1-title h1::after {
    content: "";
    width: 3.8vw;
    height: 3px;
    position: absolute;
    top: -0.6vw;
    left: 50%;
    transform: translate(-50%);
    background-color: #f5b145;
}

.main1-title h2 {
    position: relative;
    margin: 0 0 0.7vw 0;
    font-weight: 600;
    font-size: 1.5vw;
    text-align: center;
    letter-spacing: 0.3vw;
}

.main1-title h4 {
    position: relative;
    margin: 0;
    line-height: 1.5vw;
    font-weight: normal;
    font-size: 0.9vw;
    letter-spacing: 0.13vw;
    text-align: center;
}

.main1-txt {
    width: 29vw;
    font-family: 'Noto Serif TC', serif;
    color: #000000;
    position: absolute;
    left: 16vw;
    top: 54vw;
}

.main1-txt h2 {
    position: relative;
    margin: 0 0 0.7vw 0;
    font-weight: normal;
    font-size: 1.5vw;
    letter-spacing: 0.3vw;
}

.main1-txt h4 {
    position: relative;
    margin: 0;
    line-height: 1.5vw;
    font-weight: normal;
    font-size: 0.72vw;
    letter-spacing: 0.13vw;
    text-align: justify;
    text-justify: inter-ideograph;
}

.main1-eng1 {
    font-family: 'Noto Serif TC', serif;
    color: rgba(0, 0, 0, 0.11);
    position: absolute;
    left: 16vw;
    top: 33vw;
    line-height: 5.5vw;
    font-size: 4.5vw;
    letter-spacing: 1.2vw;
    animation: main1-eng1 1s ease;
    animation-fill-mode: forwards;
    animation-delay: 1.5s;
    opacity: 0;
}

@keyframes main1-eng1 {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.main1-eng2 {
    height: 30vw;
    font-family: 'Noto Serif TC', serif;
    color: rgba(0, 0, 0, 0.20);
    position: absolute;
    right: 1.3vw;
    top: 35.3vw;
    line-height: 3.5vw;
    font-size: 2.5vw;
    letter-spacing: 0.5vw;
    -ms-writing-mode: tb-lr !important;
    -webkit-writing-mode: vertical-lr !important;
    -moz-writing-mode: vertical-lr !important;
    -ms-writing-mode: vertical-lr !important;
    writing-mode: vertical-lr !important;
}

.main1-pic {
    width: 36vw;
    position: relative;
    float: right;
    margin: 2vw 10vw 0 0;
}

.main1-pic2 {
    width: 8vw;
    position: absolute;
    right: 5vw;
    top: 19vw;
}

.main1-pic3 {
    width: 12vw;
    position: absolute;
    right: 0;
    top: 9vw;
}

.main1-pic4 {
    width: 34vw;
    position: absolute;
    left: 33vw;
    top: 27.5vw;
}

.main1-pic5 {
    width: 16vw;
    position: absolute;
    left: 11vw;
    top: 52.5vw;
}

.main1-line {
    width: 1px;
    height: 0;
    position: absolute;
    left: 23vw;
    top: 0;
    background-color: #000;
    animation: main1-line 1s ease;
    animation-fill-mode: forwards;
    animation-delay: 0.5s;
}

@keyframes main1-line {
    0% {
        height: 0;
    }
    100% {
        height: 32vw;
    }
}

.mouse {
    width: 0.9vw;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    animation: mouse 0.6s infinite alternate;
    transition-timing-function: ease-out;
}

@keyframes mouse {
    0% {
        top: 18vw;
    }
    100% {
        top: 17vw;
    }
}

.left-menu {
    position: fixed;
    left: 2.5vw;
    top: 50%;
    transform: translateY(-50%);
    font-family: 'Noto Serif TC', serif;
    color: #000;
    font-size: 0.7vw;
    letter-spacing: 0.1vw;
    z-index: 1;
}

.left-menu-li {
    position: relative;
    margin: 0 0 3vw 0;
    display: block;
    color: #000;
}

.left-menu-line {
    width: 1px;
    height: 3vw;
    position: absolute;
    left: 0.15vw;
    top: 1.02vw;
    background-color: #000;
    transition: all 0.5s linear;
}

.line2 {
    top: 5vw;
}

.line3 {
    top: 9.03vw;
}

.line4 {
    top: 13vw;
}

.line4::after {
    content: "";
    width: 0.5vw;
    height: 1px;
    background-color: #000;
    position: absolute;
    left: -0.25vw;
    bottom: 0;
}

.left-menu-line-active {
    background-color: #f5b145;
}

.main1-box {
    width: 37vw;
    height: 15.5vw;
    position: absolute;
    right: 0;
    bottom: 13vw;
    background-color: #f5b145;
    opacity: 0.4;
}

.main2 {
    width: 100%;
    height: 64.5vw;
    position: absolute;
    left: 0;
    top: 82vw;
}

.main2-pic {
    width: 9vw;
    position: absolute;
    right: 0;
    top: 32vw;
}

.main2-txt {
    width: 63vw;
    font-family: 'Noto Serif TC', serif;
    color: #000000;
    position: relative;
    margin: 0 auto;
    text-align: center;
}

.main2-txt h2 {
    position: relative;
    margin: 0 0 0.7vw 0;
    font-weight: normal;
    font-size: 1.5vw;
    letter-spacing: 0.3vw;
}

.main2-txt h4 {
    position: relative;
    margin: 0;
    line-height: 1.5vw;
    font-weight: normal;
    font-size: 0.72vw;
    letter-spacing: 0.13vw;
}

.main2-eng1 {
    font-family: 'Noto Serif TC', serif;
    color: rgba(0, 0, 0, 0.11);
    position: absolute;
    left: 51.2vw;
    top: 9.4vw;
    line-height: 5.5vw;
    font-size: 4.5vw;
    letter-spacing: 1.2vw;
}

.main2-eng2 {
    font-family: 'Noto Serif TC', serif;
    color: rgba(0, 0, 0, 0.20);
    position: absolute;
    left: 14.3vw;
    top: 52vw;
    line-height: 3vw;
    font-size: 2.5vw;
    letter-spacing: 0.5vw;
}

.main2-line {
    width: 0;
    height: 1px;
    position: absolute;
    left: 0;
    top: 12.3vw;
    background-color: #000;
}

.main2-line-ani {
    animation: main2-line 1s ease;
    animation-fill-mode: forwards;
    animation-delay: 0.5s;
}

@keyframes main2-line {
    0% {
        width: 0;
    }
    100% {
        width: 49vw;
    }
}

.main2-line2 {
    width: 0;
    height: 1px;
    position: absolute;
    right: 0;
    top: 56.8vw;
    background-color: #000;
    animation: main2-line2 1s ease;
    animation-fill-mode: forwards;
    animation-delay: 0.5s;
}

@keyframes main2-line2 {
    0% {
        width: 0;
    }
    100% {
        width: 51vw;
    }
}

.menu-banner {
    width: 43vw;
    height: auto;
    position: absolute;
    top: 23vw;
    right: 8vw;
    font-family: 'Noto Serif TC', serif;
    color: #000;
    text-align: center;
    font-size: 1vw;
    letter-spacing: 0.25vw;
}

.menu-banner::after {
    content: "";
    width: 87%;
    height: 1.5px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 2.35vw;
    background-color: #f5b145;
}

.menu-banner .swiper-container {
    width: 100%;
    height: auto;
}

.menu-banner ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-banner .swiper-container .swiper-slide {
    width: 12.5%;
    height: 33vw;
    line-height: 2vw;
    box-sizing: border-box;
    cursor: pointer;
    transition: all 0.5s ease-in-out;
    margin: 0;
    box-sizing: border-box;
}

.menu-banner .swiper-button-prev {
    width: 3.4vw;
    height: auto;
    top: 5.8%;
    left: -2.5%;
    z-index: 9999 !important;
    margin-top: 0 !important;
    position: absolute;
    background-image: none;
}

.menu-banner .swiper-button-next {
    width: 3.4vw;
    height: auto;
    top: 5.8%;
    right: -2.5%;
    z-index: 999 !important;
    margin-top: 0 !important;
    background-image: none;
}

.menu-banner .swiper-button-prev img {
    width: 41%;
    float: left;
    margin: 0 0 0 -7.2%;
    animation: swiper-button-prev-img 0.6s infinite alternate;
    transition-timing-function: ease;
}

@keyframes swiper-button-prev-img {
    0% {
        margin: 0 0 0 -7.2%;
    }
    100% {
        margin: 0 0 0 -30.2%;
    }
}

.menu-banner .swiper-button-next img {
    width: 41%;
    float: right;
    margin: 0 -7.2% 0 0;
    animation: swiper-button-next-img 0.6s infinite alternate;
    transition-timing-function: ease;
}

@keyframes swiper-button-next-img {
    0% {
        margin: 0 -7.2% 0 0;
    }
    100% {
        margin: 0 -30.2% 0 0;
    }
}

.menu-banner .swiper-button-prev.swiper-button-disabled img,
.menu-banner .swiper-button-next.swiper-button-disabled img {
    animation: none;
}

.menu-banner .swiper-button-prev.swiper-button-disabled,
.menu-banner .swiper-button-next.swiper-button-disabled {
    opacity: 0;
}

.menu-banner .swiper-button-prev::before,
.menu-banner .swiper-button-next::before {
    content: "";
    width: 100%;
    position: absolute;
    left: 0;
    bottom: 0;
    height: 1.5px;
    background-color: #f5b145;
}

.menu-banner .swiper-button-prev::before {
    animation: swiper-button-prev 0.6s infinite alternate;
    transition-timing-function: ease;
    left: auto;
    right: 0;
}

@keyframes swiper-button-prev {
    0% {
        width: 100%;
    }
    100% {
        width: 106%;
    }
}

.menu-banner .swiper-button-prev.swiper-button-disabled::before {
    animation: none;
}

.menu-banner .swiper-button-next::before {
    animation: swiper-button-next 0.6s infinite alternate;
    transition-timing-function: ease;
}

@keyframes swiper-button-next {
    0% {
        width: 100%;
    }
    100% {
        width: 106%;
    }
}

.menu-banner .swiper-button-next.swiper-button-disabled::before {
    animation: none;
}

.menu-banner .swiper-button-prev::after,
.menu-banner .swiper-button-next::after {
    content: "";
    clear: both;
    display: block;
}

.menu-banner-txt {
    font-family: 'Noto Serif TC', serif;
    color: #000;
    font-size: 0.9vw;
    letter-spacing: 0.15vw;
    -ms-writing-mode: tb-lr !important;
    -webkit-writing-mode: vertical-lr !important;
    -moz-writing-mode: vertical-lr !important;
    -ms-writing-mode: vertical-lr !important;
    writing-mode: vertical-lr !important;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 3.5vw;
    transition: all 0.3s ease;
}

.menu-banner .swiper-container .swiper-slide:hover .menu-banner-txt {
    /* text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3); */
    color: #f5b145;
    font-weight: bold;
}

.menu-banner .menu-banner-active .menu-banner-txt {
    /* text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3); */
    color: #f5b145;
    font-weight: bold;
}

.menu-dot {
    width: 0.9vw;
    height: 0.9vw;
    border-radius: 50%;
    background-color: #fff;
    border: 1.5px solid #f5b145;
    box-sizing: border-box;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 1.95vw;
    transition: all 0.5s linear;
}

.menu-banner-active .year {
    color: #f5b145;
    transition: all 0.5s linear;
}

.menu-banner-active .menu-dot {
    background-color: #f5b145;
    border: 1.5px solid #f5b145;
}

.main2-banner {
    width: 31vw;
    position: absolute;
    left: 12vw;
    top: 18vw;
    display: none;
    height: 23vw;
}

.main2-banner .swiper-container {
    overflow: visible;
}

.main2-banner .swiper-slide {
    height: 23vw;
    overflow: hidden;
}

.banner-img {
    width: 100%;
    height: 23vw;
    overflow: hidden;
}

.main2-banner .swiper-pagination {
    width: fit-content;
    position: absolute;
    left: auto;
    right: -0.4vw;
    bottom: -2.4vw;
}

.main2-banner .swiper-pagination-bullet {
    background-image: url(../img/01-open/dot2.png);
    display: inline-block;
    background-repeat: no-repeat;
    background-size: contain;
    width: 0.75vw;
    height: 0.75vw;
    margin-left: 0.4vw !important;
    margin-right: 0.4vw !important;
    opacity: 1;
    border: none;
    background-color: transparent;
    border-radius: 0;
}

.main2-banner .swiper-pagination-bullet-active {
    background-image: url(../img/01-open/dot1.png);
    background-color: transparent;
}

.img-w {
    width: 100%;
    height: 100%;
}

.img-w img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.img-h {
    width: auto;
    height: 100%;
}

.img-h img {
    width: auto;
    height: 100%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
}

.img-bg-img {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    -webkit-filter: blur(5px);
    /* Safari, Chrome, Opera */
    filter: blur(5px);
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
}

.img-bg-img-black {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-color: rgba(0, 0, 0, 0.7);
}

.main3 {
    width: 100%;
    height: auto;
    position: relative;
    padding: 1vw 0 1vw 0;
}

.main3::before {
    content: "";
    position: fixed;
    width: 100%;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: -1;
    background-image: url(../img/01/bg3.jpg);
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
}

.main3-txt {
    width: 29vw;
    font-family: 'Noto Serif TC', serif;
    color: #000000;
    position: relative;
    margin: 10vw 0 4vw 15.5vw;
}

.main3-txt h2 {
    position: relative;
    margin: 0 0 0.7vw 0;
    font-weight: normal;
    font-size: 1.5vw;
    letter-spacing: 0.3vw;
}

.main3-txt h4 {
    position: relative;
    margin: 0;
    line-height: 1.5vw;
    font-weight: normal;
    font-size: 0.72vw;
    letter-spacing: 0.13vw;
    text-align: justify;
    text-justify: inter-ideograph;
}

.main3-pic1 {
    width: 21.5vw;
    position: relative;
    margin: 0 0 4.5vw 23vw;
}

.main3-pic2 {
    width: 30vw;
    position: absolute;
    left: 48.7vw;
    top: -2.7vw;
}

.main3-pic3 {
    width: 17vw;
    position: absolute;
    right: 0;
    top: 11.5vw;
}

.main3-pic4 {
    width: 9vw;
    position: absolute;
    left: 0;
    top: 1vw;
}

.main3-box {
    width: 13.5vw;
    height: 14vw;
    position: absolute;
    right: 0;
    top: 22.5vw;
    background-color: #f5b145;
    opacity: 0.4;
}

.main3-eng1 {
    font-family: 'Noto Serif TC', serif;
    color: rgba(0, 0, 0, 0.11);
    position: absolute;
    right: 1vw;
    top: 47vw;
    line-height: 5.5vw;
    font-size: 4.5vw;
    letter-spacing: 1.2vw;
    text-transform: uppercase;
}

.main3-eng2 {
    height: 30vw;
    font-family: 'Noto Serif TC', serif;
    color: rgba(0, 0, 0, 0.20);
    position: absolute;
    left: 9.3vw;
    top: 24.3vw;
    line-height: 3.5vw;
    font-size: 2.5vw;
    letter-spacing: 0.5vw;
    -ms-writing-mode: tb-lr !important;
    -webkit-writing-mode: vertical-lr !important;
    -moz-writing-mode: vertical-lr !important;
    -ms-writing-mode: vertical-lr !important;
    writing-mode: vertical-lr !important;
}

.main4 {
    width: 100%;
    height: auto;
    position: relative;
}

.main4-title {
    width: 79%;
    font-family: 'Noto Serif TC', serif;
    color: #000000;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 4.5vw;
}

.main4-title h1 {
    position: relative;
    margin: 0 0 0.8vw 0;
    font-weight: normal;
    font-size: 0.91vw;
    text-align: center;
    letter-spacing: 0.3vw;
}

.main4-title h1::after {
    content: "";
    width: 3.8vw;
    height: 3px;
    position: absolute;
    top: -0.6vw;
    left: 50%;
    transform: translate(-50%);
    background-color: #f5b145;
}

.main4-title h2 {
    position: relative;
    margin: 0 0 0.7vw 0;
    font-weight: normal;
    font-size: 1.5vw;
    text-align: center;
    letter-spacing: 0.3vw;
}

.main4-title h4 {
    position: relative;
    margin: 0;
    line-height: 1.5vw;
    font-weight: normal;
    font-size: 0.9vw;
    letter-spacing: 0.13vw;
    text-align: center;
}

.main4-pic1 {
    width: 14vw;
    position: absolute;
    left: 0;
    top: 1vw;
}

.main4-pic2 {
    width: 22.5vw;
    position: absolute;
    left: 0;
    bottom: 0;
}

.main4-pic3 {
    width: 42vw;
    position: absolute;
    right: 0;
    bottom: 0;
}

.main4-content {
    width: 80%;
    height: auto;
    position: absolute;
    left: 50%;
    top: 16vw;
    transform: translate(-50%, 0);
}

.main4-banner1 {
    width: 47%;
    height: 39.5vw;
    position: absolute;
    left: 0;
    top: 0;
    background-color: #ffffff;
    box-shadow: 0 0.4vw 1vw rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.main4-banner1::after {
    content: "";
    width: 20vw;
    height: 1px;
    position: absolute;
    left: 0;
    bottom: 3.5vw;
    background-color: #000;
}

.main4-banner1-pic {
    width: 100%;
    height: 25vw;
    position: relative;
}

.main4-banner1-pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.main4-banner2-bg {
    width: 50%;
    height: 39.5vw;
    position: absolute;
    right: 0;
    top: 0;
    background-color: #ffffff;
    box-shadow: 0 0.4vw 1vw rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.main4-banner2-title {
    font-family: 'Noto Serif TC', serif;
    color: #000000;
    position: absolute;
    left: 2.3vw;
    top: 1.2vw;
    font-size: 0.91vw;
    letter-spacing: 0.3vw;
}

.main4-banner2 {
    width: 89%;
    height: 36vw;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 9%;
}

.main4-banner2 .swiper-container {
    width: 100%;
    height: 100%;
}

.main4-banner2 .swiper-container .swiper-slide {
    width: 100%;
    height: 10%;
    border-bottom: 0.5px solid #003f57;
    position: relative;
    cursor: pointer;
    box-sizing: border-box;
}

.main4-banner2 .swiper-container .swiper-slide a {
    width: 100%;
    height: 100%;
    display: block;
}

.main4-banner2 .swiper-container .swiper-slide.swiper-slide-duplicate.swiper-slide-duplicate-prev {
    border-bottom: 0.5px solid transparent;
}

.main4-txt {
    width: 69%;
    position: absolute;
    left: 9vw;
    top: 26.5vw;
}

.main4-banner1-txt {
    width: 100%;
    height: auto;
    font-family: "Noto Serif TC", serif;
    letter-spacing: 0.1vw;
    color: #f5b145;
    font-size: 1.02vw;
    border-bottom: 1.5px solid #f5b145;
    line-height: 2.45vw;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    margin: 0 0 0.5vw 0;
}

.main4-banner1-content {
    width: 100%;
    height: auto;
    font-family: "Noto Serif TC", serif;
    letter-spacing: 0.05vw;
    color: #000;
    font-size: 0.73vw;
    line-height: 1.5vw;
    text-align: justify;
    text-justify: inter-ideograph;
}

.main4-banner1-date {
    width: 5vw;
    height: 5vw;
    font-family: "Noto Serif TC", serif;
    letter-spacing: 0.1vw;
    color: #000;
    font-size: 0.9vw;
    position: absolute;
    left: 2.5vw;
    top: 27.2vw;
    border: 1px solid #000;
    border-radius: 50%;
}

.main4-banner1-date::after {
    content: "";
    width: 70%;
    height: 1px;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    top: 50%;
    background-color: #000;
}

.main4-banner1-date-year {
    position: absolute;
    left: 50%;
    transform: translate(-50%, 0);
    top: 17%;
    letter-spacing: 0.25vw;
    text-indent: 0.25vw;
    font-size: 0.95vw;
}

.main4-banner1-date-month {
    position: absolute;
    left: 14%;
    top: 53%;
}

.main4-banner1-date-date {
    position: absolute;
    left: 63%;
    top: 53%;
}

.main4-banner2-txt {
    width: 66%;
    height: auto;
    position: relative;
    float: left;
    font-family: "Noto Serif TC", serif;
    letter-spacing: 0.1vw;
    color: #000;
    font-size: 0.9vw;
    line-height: 3.6vw;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.main4-banner2-content,
.main4-banner2-pic {
    display: none;
}

.main4-banner2-date {
    width: 25%;
    height: auto;
    position: relative;
    font-family: "Noto Serif TC", serif;
    letter-spacing: 0.17vw;
    color: #000;
    font-size: 0.9vw;
    float: left;
    line-height: 3.6vw;
}

.new {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-family: "Noto Serif TC", serif;
    letter-spacing: 0.05vw;
    color: #fff;
    font-size: 0.65vw;
    background-color: #a68608;
    line-height: 1vw;
    text-transform: uppercase;
    border-radius: 5px;
    padding: 0 0.3vw;
    opacity: 0;
    visibility: hidden;
}

.main4-banner2 .swiper-container .swiper-slide.swiper-slide-active .new {
    opacity: 1;
    visibility: visible;
}

.main4-more {
    width: 13vw;
    line-height: 3vw;
    position: absolute;
    left: 21.7vw;
    bottom: 2vw;
    font-family: 'Noto Serif TC', serif;
    font-size: 0.7vw;
    letter-spacing: 0.05vw;
    color: #f5b145;
    text-align: center;
    border: 1px solid #f5b145;
    text-transform: uppercase;
    transition: all 0.5s ease;
}

.main4-more-txt {
    position: relative;
    display: inline-block;
    margin: 0 -2vw 0 0;
    transition: all 0.5s ease;
}

.main4-more:hover {
    color: #fff;
    border: 1px solid #fff;
    background-color: #f5b145;
}

.main4-more:hover .main4-more-txt {
    margin: 0;
}

.main4-more-icon {
    width: 2vw !important;
    height: 0.3vw !important;
    position: relative;
    overflow: hidden;
    display: inline-block;
    top: -0.15vw;
    margin: 0 0 0 0.2vw;
    transition: all 0.5s ease;
    visibility: hidden;
    opacity: 0;
}

.main4-more-icon-ani {
    width: 100%;
    height: 100%;
    position: absolute;
    right: 0;
    top: 0;
    background-image: url(../img/index/arrow-r.png);
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    transition: all 0.5s ease;
}

.main4-more:hover .main4-more-icon {
    visibility: visible;
    opacity: 1;
}

.main4-more:hover .main4-more-icon-ani {
    animation: more-icon 1.5s ease-in-out;
    animation-fill-mode: forwards;
    animation-delay: 0.5s;
}

@keyframes more-icon {
    0% {
        right: 0;
    }
    50% {
        right: -100%;
    }
    51% {
        right: 100%;
    }
    100% {
        right: 0;
    }
}

.down {
    width: 0.27vw;
    position: absolute;
    right: 0.9vw;
    animation: down 0.6s infinite alternate;
    transition-timing-function: ease-out;
}

@keyframes down {
    0% {
        bottom: 3vw;
    }
    100% {
        bottom: 2vw;
    }
}