/* 基础布局重置 */
html,
body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    /* 禁用默认滚动 */
    width: 100%;
    height: 100%;
}

/* 滚动容器 */
.screen-container {
    position: relative;
    /*height: calc(100vh - 60px);*/
    height: 100vh;
    /* 修正高度计算 */
    /* padding-top: 68px; */
    overflow-y: auto;
    /* scroll-behavior: smooth; */
    scroll-snap-type: y mandatory;

    overscroll-behavior: contain;
}

/* 单屏通用样式 */
.screen-section {
    position: relative;
    width: 100%;
    height: 100vh;
    scroll-snap-align: start;
    overflow: hidden;
    will-change: transform;
    transform: translateZ(0);
    scroll-snap-align: start;
    scroll-snap-stop: always;
    /* 增加强制对齐 */
}

.banner {
    position: relative;
}

.banner-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.banner-content {
    position: relative;
    z-index: 2;
    max-width: 1440px;
    margin: 0 auto;
}

.left-content {
    padding-top: 168px;
    padding-left: 149px;
}

.banner-title {
    font-weight: 700;
    font-size: 54px;
    color: #ffffff;
}

.banner-sub-title {
    font-weight: 700;
    font-size: 36px;
    color: #ffffff;
}

.but-group {
    display: flex;
    margin-top: 62px;
    align-items: center;
    gap: 19px;
}

.banner-btn {
    padding: 8px 62px;
    border-radius: 4px;
    border: 1px solid #d4d4d4;
}

.banner-btn:nth-child(1) {
    font-size: 16px;
    color: #ffffff;
}

.banner-btn:nth-child(2) {
    background: #ffffff;
    font-size: 16px;
    color: #000000;
}

.banner-desc {
    position: absolute;
    right: 333px;
    bottom: 160px;
    font-weight: 500;
    font-size: 22px;
    color: #ffffff;
    z-index: 3;
}

.mobile {
    position: absolute;
    right: 300px;
    top: 280px;
    z-index: 2;
    width: 177px;
    height: 334px;
    opacity: 0;
    transform: translateY(100%);
    transition: all 0.8s ease-out;
    will-change: transform, opacity;
}

.screen-section.active .mobile {
    transform: translateY(0);
    opacity: 1;
}

.pain-content,
.warning-content,
.sys-content,
.scene-content,
.inter-content {
    padding-top: 168px;
    z-index: 2;
    position: relative;
    max-width: 1440px;
    margin: 0 auto;
}

.pain-title {
    font-weight: 700;
    font-size: 36px;
    color: #ffffff;
    text-align: center;
}

.pain-list {
    display: flex;
    justify-content: center;
    align-items: start;
    margin-top: 61px;
    gap: 30px;
}

.pain-item {
    position: relative;
    width: 279px;
    opacity: 0;
    transform: translateX(-100%);
    transition: all 0.8s ease-out;
    will-change: transform, opacity;
}

.screen-section.active .pain-item {
    transform: none;
    opacity: 1;
}

/* 延迟设置 */
.screen-section.active .pain-item:nth-child(4) {
    transition-delay: 0.2s;
}

.screen-section.active .pain-item:nth-child(3) {
    transition-delay: 0.4s;
}

.screen-section.active .pain-item:nth-child(2) {
    transition-delay: 0.6s;
}

.screen-section.active .pain-item:nth-child(1) {
    transition-delay: 0.8s;
}


.pain-item img {
    width: 279px;
}

.pain-top-box {
    position: absolute;
    top: 22px;
    left: 18px;
}

.pain-top-title {
    font-weight: 500;
    font-size: 28px;
    color: #ffffff;
}

.pain-top-desc {
    font-weight: 500;
    font-size: 6px;
    color: #ffffff;
}

.pain-item-text {
    font-weight: 500;
    font-size: 20px;
    color: #ffffff;
    margin-top: 18px;
    text-align: center;
}

.pain-item-desc {
    font-weight: 400;
    font-size: 12px;
    color: #ffffff;
    margin-top: 8px;
}

.warning-title {
    font-weight: 700;
    font-size: 36px;
    color: #ffffff;
    text-align: center;
}

.warning-sub-title {
    font-weight: 400;
    font-size: 16px;
    color: #ffffff;
    text-align: center;
    margin-top: 16px;
}

.warning-desc {
    font-weight: 500;
    font-size: 28px;
    color: #ffffff;
    margin-top: 430px;
    text-align: center;
    opacity: 0;
    transform: translateY(600%);
    transition: all 0.8s ease-out;
    will-change: transform, opacity;
}

.screen-section.active .warning-desc {
    opacity: 1;
    transform: translateY(0)
}

.inter-title {
    font-weight: 700;
    font-size: 36px;
    color: #ffffff;
    text-align: center;
}

.inter-left-box {
    position: absolute;
    left: 50px;
    top: 300px;
    text-align: right;
    opacity: 0;
    transform: translateX(-100%);
    transition: all 0.8s ease-out;
    will-change: transform, opacity;
}

.screen-section.active .inter-left-box {
    opacity: 1;
    transform: translateX(0);
    transition-delay: 0.2s;
}


.tip-title {
    font-weight: 500;
    font-size: 28px;
    color: #ffffff;
}

.tip-desc {
    font-weight: 350;
    font-size: 14px;
    color: #ffffff;
}

.inter-right-box {
    position: absolute;
    right: 50px;
    top: 300px;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.8s ease-out;
    will-change: transform, opacity;
}

.screen-section.active .inter-right-box {
    opacity: 1;
    transform: translateX(0);
    transition-delay: 0.4s;
}

.inter-botton-box {
    position: absolute;
    left: 0px;
    top: 600px;
    opacity: 0;
    transform: translateX(-100%);
    transition: all 0.8s ease-out;
    will-change: transform, opacity;
}

.screen-section.active .inter-botton-box {
    opacity: 1;
    transform: translateX(0);
    transition-delay: 0.6s;
}

.inter-desc {
    position: absolute;
    right: 0;
    top: 800px;
    font-weight: 350;
    font-size: 14px;
    color: #ffffff;
}

.sys-title {
    font-weight: 700;
    font-size: 36px;
    color: #ffffff;
    text-align: center;
}

.sys-sub-title {
    font-weight: 700;
    font-size: 20px;
    color: #ffffff;
    text-align: center;
    margin-top: 17px;
    opacity: 0;
    transform: translateY(500%);
    transition: all 0.8s ease-out;
    will-change: transform, opacity;
}

.screen-section.active .sys-sub-title {
    opacity: 1;
    transform: translateY(0);
}

.sys-detail {
    margin: 0 auto;
    font-weight: 500;
    font-size: 14px;
    color: #ffffff;
    text-align: center;
    margin-top: 18px;
    width: 56px;
    padding-bottom: 8px;
    border-bottom: 2px solid #ffffff;
}

.scene-title {
    font-weight: 700;
    font-size: 36px;
    color: #ffffff;
    text-align: center;
}

.scene-list {
    display: flex;
    margin-top: 59px;
    gap: 51px;
    justify-content: center;
}

.scene-item {
    width: 297px;
    opacity: 0;
    transform: translateX(-100%);
    transition: all 0.8s ease-out;
    will-change: transform, opacity;
}

.screen-section.active .scene-item {
    opacity: 1;
    transform: none;
}

.screen-section.active .scene-item:nth-child(3) {
    transition-delay: 0.2s;
}

.screen-section.active .scene-item:nth-child(2) {
    transition-delay: 0.4s;
}

.screen-section.active .scene-item:nth-child(1) {
    transition-delay: 0.6s;
}


.scene-item img {
    width: 100%;
}

.scene-item-text {
    text-align: center;
    font-weight: 500;
    font-size: 28px;
    color: #ffffff;
    margin-top: 21px;
}

.about-content {
    padding-top: 160px;
    z-index: 2;
    position: relative;
    max-width: 1440px;
    width: 1166px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(100%);
    transition: all 0.8s ease-out;
    will-change: transform, opacity;
}

.about-content img {
    width: 297px;
}

.about-text {
    margin-top: 28px;
    font-weight: 400;
    font-size: 20px;
    color: #ffffff;
    line-height: 29px;


}

.screen-section.active .about-content {
    opacity: 1;
    transform: translateY(0)
}

.about-btn {
    border-radius: 4px;
    border: 1px solid #ffffff;
    width: 206px;
    text-align: center;
    font-weight: 400;
    font-size: 16px;

    height: 38px;
    line-height: 38px;
    margin-top: 38px;
}

.about-btn a {
    color: #ffffff;
}