header {
    height: 30vh;
    background: url(../assets/products.jpeg) no-repeat;
    background-size: cover;
    background-position: center;
    position: relative;
}

header .page-title {
    background-image: linear-gradient(to right, rgb(50, 115, 230), rgb(3, 19, 66));
    width: 40vw;
    height: 15vh;
    position: absolute;
    bottom: -7.5vh;
    left: 0;
    padding-left: 10vw;
}

main {
    color: #000019;
    padding: 10vh 0;
    padding: 10vh 10vw;
    line-height: 2rem;
}

.promise {
    width: 40vw;
    height: fit-content;
    position: relative;
    padding-left: 2.5vw;
}
.promise:before {
    content: '';
    width: 5px;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-image: linear-gradient(to bottom, rgb(50, 115, 230), rgb(3, 19, 66));
}
.promise a {
    color: rgba(0, 0, 0, 0.65);
    font-size: 0.9rem;
    margin-left: 1rem;
}
main h3 {
    font-size: 1.5rem;
    display: block;
    width: fit-content;   
    padding: 0;
    position: relative;
}
main h3:before {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 0;
    width: 100%;
    height: 3px;
    background-image: linear-gradient(to right, rgb(50, 115, 230), rgb(3, 19, 66));
}

.download {
    border-bottom: 1px solid rgba(0, 0, 0, 0.45);
}
.download i {
    display: inline-block;
    width: 16px;
    height: 16px;
    background-image: url(../assets/Icons/file.svg);
    background-size: 16px;
    background-position: center;
    background-repeat: no-repeat;
    margin-right: 8px;
}
.download span {
    margin-right: 20px;
}
.download a {
    margin-right: 20px;
    border-right: 1px solid rgba(0,0,0,0.45);
    position: relative;
    color: #000019;
}
.download a:last-child {
    border: none;
}
.download a:after {
    content: '';
    display: block;
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 24px;
    background: linear-gradient(to left, #2243e5, #2e6be5);
    transition: all 0.25s ease;
    transform-origin: left;
}
.download a:hover:after {
    width: calc(100% - 44px);
}
.intro {
    display: flex;
    margin: 3rem 0;
}
.intro .imgbox {
    width: 50%;
    position: relative;
}
.intro .text {
    width: 50%;
}
.intro .imgbox i {
    position: absolute;
    left: 1.5rem;
    top: 1.5rem;
    width: 3rem;
    height: 3rem;
    display: block;
    background-color: rgba(0, 0, 0, 0.05);
    background-image: url(../assets/Icons/放大.svg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 1rem;
    cursor: pointer;
}
.intro .imgbox img {
    padding: 1rem;
    border-radius: 1rem;
    width: 30vw;
    height: 30vw;
    box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.25);
    cursor: pointer;
}

.intro .imgbox .backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0,1);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999;
}

.intro .imgbox .close-btn {
    position: absolute;
    top: 20px;
    right: 36px;
    width: 40px;
    height: 40px;
    cursor: pointer;
    background-image: url(../assets/Icons/close.svg);
    background-position: center;
    background-size: 20px;
    background-repeat: no-repeat;
}
.intro .imgbox .image {
    width: calc(100vh - 40px);
    height: calc(100vh - 40px);
}
.intro li {
    margin-bottom: 20px;
}
.intro li:before {
    content: "\25A0"; /* 使用方块符号作为项目符号 */
    color: #2864e6; /* 设定红色 */
    margin-right: 1rem;
}

.myul,.specifications {
    background-color: rgba(0, 0, 0, 0.05);
    padding: 1rem 2rem;
    margin-bottom: 2rem;
    border-radius: 1rem;
}
.myul ul {
    display: flex;
    margin: 3rem 0;
    flex-wrap: wrap;
    gap: 1rem;
}
.myul ul li {
    padding: 1rem;
    padding-left: 3rem;
    width: calc((100% - 29rem) / 6);
    border-radius: 1rem;
    box-shadow: -1px 3px 23px -10px rgba(0, 0, 0, 0.1);
    background-color: #fff;
    position: relative;
}
.myul ul li span {
    width: 100%;
    word-wrap: break-word;
    text-align: justify;
}
.myul ul li i {
    position: absolute;
    display: inline-block;
    width: 1rem;
    height: 1rem;
    top: 1.5rem;
    left: 1rem;
    background-image: url(../assets/Icons/fav_fill.svg);
    background-position: center;
    background-repeat: no-repeat;

}

.specifications ul {
    margin: 3rem 0;
    display: flex;
    gap: 1rem
}
.specifications ul li {
    position: relative;
    margin-bottom: 0.5rem;
    box-shadow: -1px 3px 23px -10px rgba(0, 0, 0, 0.1);
    padding: 0.5rem 0;
    width: calc((100% - 2rem)/3);
    background-color: #fff;
    line-height: 1.5rem;
    border-radius: 1rem;
}
.specifications ul li span {
    display: block;
    width: calc(100% - 2rem);
    height: fit-content;
    padding-left: 1.5rem;
}

.schematic img {
    display: block;
    width: 30vw;
    margin: 5rem 0; 
}
.schematic button {
    padding: 0.5rem 1.5rem;
    background-color: #2864e6;
    border: none;
    border-radius: 2px;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    position: relative;
    transition: all 0.25s ease;
    transform-origin: left;
    border-radius: 1rem;
}
.schematic button i {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    background-image: url(../assets/Icons/back-white.svg);
    background-size: 100%;
    background-position: center;
    margin-right: 0.5rem;
}
.schematic button i,
.schematic button span {
    position: relative;
    z-index: 1;
}
.schematic button:after {
    content: '';
    display: block;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 100%;
    top: initial;
    transition: all 0.25s ease;
    background: linear-gradient(to right, rgb(50, 115, 230), rgb(3, 19, 66));
    transform-origin: left;
    border-radius: 1rem;
    z-index: 0;
}

.schematic button:hover:after {
    width: 100%;
}

@media only screen and (max-width: 1023px) {
    .page-title h3 {
        display: none;
    }
    .promise {
        text-align: justify;
        margin-top: 5rem;
        width: calc(100% - 10vw);
        padding-left: 5vw;
    }
    .intro {
        flex-direction: column;
    }
    .intro .imgbox, .intro .text {
        width: calc(100% - 10vw);   
    }
    .intro .imgbox img {
        width: 100%;
        height: fit-content;
    }
    .myul {
        padding: 1rem;
    }
    .myul ul {
        flex-direction: column;
    }
    .myul ul li {
        width: calc(100% - 4rem);
    }
    .specifications ul li {
        width: 100%;
        
    }
    .schematic img {
        width: 80vw;
    }
}