.btn p br {
    display: none;
}

.homePage {
    padding-top: 105px;
}

h1 {
    letter-spacing: 3px;
    font-weight: normal;
    color: #333333;
    font-size: 40px;
    margin: 75px 0;
}

h2 {
    color: #333333;
    font-size: 28px;
}

.productIntroduce {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
}



/* 导入文字 */
.prefaceBox {
    margin: 55px 0 25px 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.preface {
    text-align: center;
    width: 67%;
    font-size: 18px;
    letter-spacing: 2px;
    line-height: 35px;
    color: #333333;
}

.prefaceBox span {
    color: #f0831e;
}

.certificate-text {
    cursor: default;
}

.follow-mouse {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    display: none;
    width: 130px;
}

/* 光伏发电系统及应用方案 */
.HVapplication {
    padding-bottom: 50px;
    text-align: center;
    width: 100%;
    background-color: #f8f8f8;
}

/* 切换方案 */
.page-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.controls {
    width: 100%;
    background-color: #f7f8f8;
    display: flex;
    justify-content: center;
}

.content-container {
    position: relative;
    width: 100%;
    overflow: visible;
    border-radius: 10px;
    transition: height 0.5s ease;
}

.content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    overflow: visible;
}

.content.active {
    position: relative;
    display: flex;
    opacity: 1;
    transform: translateX(0);
    height: auto;
    z-index: 1;
}


.btn {
    width: 17.5%;
    height: 85px;
    background-color: transparent;
    border-top: 4px solid transparent;
    font-size: 23px;
    letter-spacing: 2px;
    border-right: 1px solid #ccc;
}


.btn.active {
    background-color: white;
    color: #f0831e;
    border-top: 4px solid #f0831e;
    font-size: 25px;
}

.btn:not(.active) {
    cursor: pointer;
}

.btn:last-child {
    border-right: none;
}

.btn.active {
    border-right: none;
}

.btn:has(+ .btn.active) {
    border-right: none;
}

.method {
    gap: 2%;
    width: 65%;
    margin-top: 40px;
    display: flex;
    justify-content: center;
}

.method a {
    margin-bottom: 5px;
}

.methodProduct {
    background-color: #f7f8f8;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-radius: 10px;
    justify-content: space-evenly;
    height: 240px;
    width: 100%;
}

.method a {
    text-decoration: none;
    color: inherit;
    flex: 1;
}

.methodProduct .product,
.methodProduct .shadow {
    transition: transform 0.3s ease;
}


.content a:hover .product {
    transform: translateY(-10px);
}

.content a:hover .shadow {
    transform: scale(0.8);
}

.pname {
    font-size: 16px;
    color: #f0831e;
    font-weight: bold;
    letter-spacing: 1px;
}

.series {
    font-size: 15px;
    margin: 5px 0;
}


.content h2 {
    width: 60%;
    font-weight: normal;
    margin: 80px 0 25px 0;
    letter-spacing: 2px;
    font-size: 32px;
}

.advantage {
    width: 60%;
    font-size: 22px;
    margin-bottom: 25px;
    color: #333333;
    letter-spacing: 1px;
}

.methodProduct a img {
    margin: 0;
}

.methodProduct img {
    margin: 0;
}

.productTitle {
    text-align: center;
}

/* 光伏电源全产品一览——表格 */
.TB {
    margin: 5px;
    background-color: #fffbf7;
    text-align: center;
}

.PITitle,
.PISmallTitle {
    font-weight: normal;
    color: #333333;
    font-size: 23px;
    letter-spacing: 2px;
}

.AllProduct {
    width: 65%;
    display: flex;
}


.t1 {
    width: 32%;
}

.t2 {
    width: 30%;
}

.t3 {
    width: 38%;
}

.t1 .TL3:first-child {
    flex: 1;
}

.t1 .TL3:last-child {
    flex: 2;
}

.t2 .TL3 {
    flex: 1;
}


.t3 .TL3 {
    flex: 1;
}



.TL {
    display: flex;
    flex-direction: column;
}

.TL2 {
    display: flex;
    width: 100%;
}

.TL3 {
    display: flex;
    flex-direction: column;
}

.TL4 {
    display: flex;
    height: 320px;
}

.t3 .TL4 {
    flex-direction: column;
}

.TL4 .TB {
    flex: 1;
}

.TL5 {
    flex: 1;
    display: flex;
    flex-direction: column;
}



.line1 {
    height: 85px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.line2 {
    height: 75px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.line3 {
    height: 310px;
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: space-evenly;
    font-size: 12px;
}

.t3 .TL2 .TL3:first-child .TB {
    background-color: #fffcf3;
}

.t1 .TB {
    background-color: #fffcf3;
}

.TB a {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-evenly;
}

/* 光伏电源行业精品详解 */
.Introduce {
    width: 65%;
    padding: 40px;
    margin-bottom: 50px;
    display: flex;
    background-color: #f8f8f8;
    align-items: center;
    justify-content: center;
}

.Introduce img {
    padding: 0 35px;
}

.U-list {
    margin: 20px 20px 20px 30px;
}

.list {
    line-height: 40px;
    list-style-type: initial;
    font-size: 20px;
    color: #333;
    letter-spacing: 1px;
}

.U-list .list::marker {
    color: #f0831e;
}

.point a {
    color: #f0831e;
    font-size: 18px;
}

.point h2 {
    line-height: 40px;
    letter-spacing: 1px;
}

.point {
    width: 55%;
    margin-left: 70px;
    padding: 30px 50px;
    background-color: #fdfdfd;
}

p {
    line-height: initial;
}

/* 背景填充链接样式 */
.fill-link {
    letter-spacing: 1px;
    margin-left: -8px;
    color: #ff6b35;
    text-decoration: none;
    padding: 12px 15px;
    border-radius: 6px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    font-weight: 600;
    font-size: 1.3rem;
    transition: color 0.4s ease;
    display: inline-block;
}

.fill-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -108%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #f0831e, #ffa235);
    /* background: linear-gradient(90deg, #ff6b35, #ffa235); */
    transition: left 0.4s ease;
    z-index: -1;
}

.fill-link:hover::before {
    left: 0;
}

.fill-link:hover {
    color: white;
}

button br {
    display: none;
}



.line3-p {
    font-size: 14px;
}


/* 流光效果 */
.TB.line3 {
    position: relative;
    overflow: hidden;
}

/* 流光边框样式 */
.TB.line3 .animate-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.TB.line3:hover .animate-border {
    opacity: 1;
}

.animate-border::before,
.animate-border::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 2px;
}

.animate-border i {
    position: absolute;
    display: inline-block;
    height: 100%;
    width: 2px;
}

.animate-border::before {
    top: 0;
    left: -100%;
    background-image: linear-gradient(90deg, transparent, #f0831e);
}

.animate-border i:nth-child(1) {
    top: -100%;
    right: 0;
    background-image: linear-gradient(180deg, transparent, #f0831e);
}

.animate-border::after {
    bottom: 0;
    right: -100%;
    background-image: linear-gradient(-90deg, transparent, #f0831e);
}

.animate-border i:nth-child(2) {
    bottom: -100%;
    left: 0;
    background-image: linear-gradient(360deg, transparent, #f0831e);
}

/* 悬停时运行动画 */
.TB.line3:hover .animate-border::before {
    animation: one 1s linear infinite;
}

.TB.line3:hover .animate-border i:nth-child(1) {
    animation: two 1s linear 0.25s infinite;
}

.TB.line3:hover .animate-border::after {
    animation: three 1s linear 0.5s infinite;
}

.TB.line3:hover .animate-border i:nth-child(2) {
    animation: four 1s linear 0.75s infinite;
}

@keyframes one {
    0% {
        left: -100%;
    }

    50%,
    100% {
        left: 100%;
    }
}

@keyframes two {
    0% {
        top: -100%;
    }

    50%,
    100% {
        top: 100%;
    }
}

@keyframes three {
    0% {
        right: -100%;
    }

    50%,
    100% {
        right: 100%;
    }
}

@keyframes four {
    0% {
        bottom: -100%;
    }

    50%,
    100% {
        bottom: 100%;
    }
}

.waiting {
    height: 115px;
    display: flex;
    align-items: center;
}

.point span {
    display: none;
}

@media screen and (max-width: 1850px) {
    .AllProduct {
        width: 75%;
    }

    .Introduce {
        width: 75%;
    }

    .method {
        width: 75%;
    }

    .btn {
        font-size: 21px;
    }

    .btn.active {
        font-size: 23px;
    }
}

@media screen and (max-width: 1600px) {
    .Introduce {
        width: 80%;
    }

    .AllProduct {
        width: 80%;
    }

    .preface {
        text-align: start;
    }
}

@media screen and (max-width: 1500px) {
    .productIntroduce {
        margin-top: 20px;
    }

    .preface {
        width: 75%;
    }

    .method {
        width: 75%;
    }

    .btn.active {
        font-size: 23px;
    }

    .btn {
        width: 24%;
        height: 75px;
        font-size: 22px;
    }

    .content h2 {
        width: 75%;
        margin: 70px 0 15px 0;
        font-size: 28px;
    }

    .advantage {
        width: 75%;
        font-size: 18px;
        margin-bottom: 25px;
    }

    h1 {
        font-size: 36px;
        margin: 60px 0;
    }


    .line1 {
        height: 70px;
    }

    h2 {
        font-size: 24px;
    }

    .Introduce {
        padding: 30px;
        margin-bottom: 35px;
        justify-content: center;
    }

    .point {
        margin-left: 70px;
        padding: 15px 40px;
        width: 45%;
    }

    .U-list {
        margin: 10px 20px 10px 30px;
    }

    .list {
        line-height: 32px;
        font-size: 18px;
    }

    .point h2 {
        line-height: 32px;
    }

    .Introduce img {
        margin-left: 40px;
    }

}


@media screen and (max-width: 1350px) {


    .preface {
        width: 75%;
    }

    .method {
        width: 80%;
    }

    .AllProduct {
        width: 80%;
    }

    .Introduce {
        width: 80%;
    }

    h1 {
        font-size: 32px;
        margin: 50px 0;
    }

    .Introduce img {
        margin-left: 0;
    }

    .point {
        margin-left: 30px;
        width: 55%;
    }

    .HVapplication {
        padding: 0 0 70px 0;
    }

    .btn {
        height: 60px;
        font-size: 18px;
    }

    .content h2 {
        width: 80%;
        margin: 40px 0 10px 0;
        font-size: 22px;
    }

    .advantage {
        width: 80%;
        font-size: 18px;
        margin-bottom: 10px;
    }

    .btn.active {
        font-size: 20px;
    }

    .content-image {
        width: 75%;
    }

    .methodProduct a img {
        width: 90%;
    }

    .methodProduct {
        height: 200px;
    }


    .line1 {
        height: 60px;
    }

    h2 {
        font-size: 22px;
    }

    .line2 {
        height: 60px;
    }

    .PISmallTitle {
        font-size: 20px;
        line-height: normal;
    }

    .Introduce img {
        width: 36%;
    }
}

@media screen and (max-width: 1200px) {
    .preface {
        width: 80%;
        font-size: 18px;
        letter-spacing: 2px;
        line-height: 26px;
    }



    h1 {
        font-size: 28px;
        margin: 40px 0;
    }

    .AllProduct {
        flex-wrap: wrap;
    }

    .t1 {
        width: 50%;
    }

    .t2 {
        width: 50%;
    }

    .t3 {
        width: 100%;
    }
}

@media screen and (max-width: 1000px) {
    .product {
        height: 35%;
    }

    h1 {
        font-size: 26px;
        margin: 30px 0;
    }

    .HVapplication {
        padding: 0 0 50px 0;
    }

    .btn {
        height: 45px;
        font-size: 16px;
    }

    .btn.active {
        font-size: 17px;
    }

    .content h2 {
        margin: 30px 0 5px 0;
        font-size: 18px;
    }

    .advantage {
        font-size: 14px;
    }

    .method {
        margin-top: 20px;
    }

    .methodProduct {
        height: 180px;
    }

    .pname {
        font-size: 14px;
    }

    .series {
        font-size: 14px;
        margin: 0;
    }



    .AllProduct {
        width: 90%;
    }

    .Introduce {
        width: 90%;
    }

    .point h2 {
        line-height: 24px;
    }

    h2 {
        font-size: 20px;
    }

    .list {
        line-height: 25px;
        font-size: 16px;
    }

    .fill-link {
        padding: 5px 10px;
    }

    .point a {
        font-size: 16px;
    }

    .Introduce {
        padding: 22px;
    }

    .Introduce img {
        padding: 0;
    }
}

@media screen and (max-width: 800px) {
    .PISmallTitle {
        font-size: 18px;
    }

    .prefaceBox {
        margin: 30px 0 0 0;
    }

    .preface {
        font-size: 14px;
        line-height: 22px;
    }

    h1 {
        font-size: 22px;
        margin: 22px 0;
    }

    .HVapplication {
        padding: 0 0 40px 0;
    }

    .btn {
        width: 28%;
    }

    .content h2 {
        width: 80%;
    }

    .advantage {
        width: 80%;
    }

    .method {
        width: 85%;
    }




    .point {
        padding: 15px 30px;
    }

    .point a {
        font-size: 15px;
    }
}

@media screen and (max-width: 768px) {
    .homePage {
        padding-top: 95px;
    }
}

@media screen and (max-width: 600px) {


    .content-image {
        width: 95%;
    }

    .HVapplication {
        padding: 0 0 25px 0;
    }

    .waiting {
        height: 60px;
        font-size: 12px;
    }

    .productIntroduce .Introduce:last-child .point {
        margin-left: 0px;
    }

    .preface {
        text-indent: 2em;
    }

    .preface:first-child {
        margin-bottom: 20px;
    }

    .AllProduct {
        flex-direction: column;
    }

    .t1 {
        width: 100%;
    }

    .t2 {
        width: 100%;
    }

    .Introduce {
        flex-direction: column;
    }

    .point {
        margin-left: 0;
        width: 100%;
    }

    .Introduce img {
        margin-top: 10px;
        margin-bottom: 20px;
        width: 50%;
    }

    .content-2 .productTitle {
        flex-direction: column;
    }

    .btn.active {
        font-size: 15px;
    }

    .btn {
        width: 33.33%;
        height: 45px;
        font-size: 14px;
        letter-spacing: 1px;
    }

    .method {
        flex-wrap: wrap;
    }

    .method a {
        flex: none;
    }

    .content h2 {
        width: 90%;
    }

    .advantage {
        width: 90%;
    }

    .content-1 a {
        width: 32%;
    }

    .content-2 a {
        width: 32%;
    }

    .content-3 a {
        width: 49%;
    }

    .content-4 a {
        width: 49%;
    }


    .methodProduct {
        height: 153px;
    }

    .product {
        height: 50%;
    }




    button br {
        display: block;
    }


}

@media screen and (max-width: 450px) {
    .btn p br {
        display: block;
    }

    .line3-p {
        font-size: 12px;
    }

    .line3 {
        height: 230px;
    }

    .TL4 {
        height: 240px;
    }

    .AllProduct img {
        transform: scale(0.8);
    }

    .PISmallTitle {
        font-size: 16px;
    }

    .content h2 {
        margin: 20px 0 5px 0;
        font-size: 16px;
    }

    .product {
        height: 50%;
    }

    .t1 .TL4 .line3-p br {
        display: block;
    }

    .preface:first-child {
        margin-bottom: 12px;
    }



    button br {
        display: block;
    }

    .homePage {
        width: 100%;
        padding-top: 95px;
    }

    .homePage img {
        object-fit: cover;
        height: 185px;
        width: 100%;
    }

    h1 {
        font-size: 17px;
        margin: 20px 0 15px 0;
    }

    .productIntroduce {
        margin-top: 0;
    }

    .HVapplication {
        padding: 0 0 10px 0;
    }

    .prefaceBox {
        margin: 30px 0 10px 0;
    }

    .preface {
        text-indent: 2em;
        width: 85%;
        font-size: 12px;
        letter-spacing: 1px;
        line-height: 20px;
    }

    .btn.active {
        font-weight: bold;
        font-size: 14px;
    }

    .btn {
        width: 33.33%;
        height: 45px;
        font-size: 13px;
        letter-spacing: 1px;
    }

    .advantage {
        width: 90%;
        font-size: 13px;
        margin-bottom: 10px;
        letter-spacing: 0;
    }

    .method {
        gap: 2%;
        width: 90%;
        margin-top: 20px;
        flex-wrap: wrap;
    }

    .TB a {
        justify-content: center;
    }

    .product {
        height: 45%;
    }

    .pname {
        font-size: 11px;
        letter-spacing: 1px;
    }

    .series {
        margin: 2px 0;
        font-size: 12px;
    }

    .methodProduct a img {
        height: 50%;
    }

    .methodProduct a {
        display: contents;
    }

    .methodProduct {
        height: 150px;
    }



    .AllProduct {
        width: 90%;
        display: flex;
        flex-direction: column;
    }

    .line1 {
        height: 40px;
        letter-spacing: 2px;
    }

    h2 {
        font-size: 15px;
    }

    .line2 {
        height: 40px;
        font-size: 12px;
        line-height: normal;
    }


    .Introduce {
        width: 90%;
        padding: 0;
        margin-bottom: 20px;
        flex-direction: column;
        padding: 20px 0;
    }

    .Introduce img {
        width: 55%;
    }

    .point {
        width: 90%;
        margin-left: 0;
        padding: 12px 12px 0px 12px;
    }

    .U-list {
        margin: 5px 20px 0px 30px;
    }

    .list {
        line-height: 18px;
        list-style-type: initial;
        font-size: 13px;
        letter-spacing: 1px;
    }

    .point a {
        font-size: 13px;
    }

    .fill-link {
        margin-left: -7px;
        padding: 3px 12px;
    }

    .point h2 {
        line-height: 19px;
    }

    .fill-link::before {
        background: transparent;
    }

    .point br {
        display: none;
    }

    .point span {
        display: block;
    }

    .list span {
        display: inline;
    }
}