@charset "utf-8";
/* ==================== 数字孪生页面样式 ==================== */

/* 滚动渐入动画 */
.dt-scene-item,
.dt-feature-item,
.dt-adv-item,
.dt-intro-left,
.dt-intro-right{
    opacity: 0;
    transform: translateY(30px);
    -webkit-transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    -webkit-transition: opacity 0.6s ease, transform 0.6s ease;
}
.dt-scene-item.dt-animated,
.dt-feature-item.dt-animated,
.dt-adv-item.dt-animated,
.dt-intro-left.dt-animated,
.dt-intro-right.dt-animated{
    opacity: 1;
    transform: translateY(0);
    -webkit-transform: translateY(0);
}
.dt-scene-item:nth-child(2){ transition-delay: 0.08s; }
.dt-scene-item:nth-child(3){ transition-delay: 0.16s; }
.dt-scene-item:nth-child(4){ transition-delay: 0.24s; }
.dt-scene-item:nth-child(5){ transition-delay: 0.08s; }
.dt-scene-item:nth-child(6){ transition-delay: 0.16s; }
.dt-scene-item:nth-child(7){ transition-delay: 0.24s; }
.dt-scene-item:nth-child(8){ transition-delay: 0.32s; }
.dt-feature-item:nth-child(2){ transition-delay: 0.1s; }
.dt-feature-item:nth-child(3){ transition-delay: 0.05s; }
.dt-feature-item:nth-child(4){ transition-delay: 0.15s; }
.dt-adv-item:nth-child(2){ transition-delay: 0.1s; }
.dt-adv-item:nth-child(3){ transition-delay: 0.05s; }
.dt-adv-item:nth-child(4){ transition-delay: 0.15s; }

/* 通用容器 */
.dt-wrap{
    width: 1400px;
    margin: 0 auto;
}

/* ========== Banner ========== */
.dt-banner{
    position: relative;
    width: 100%;
    height: 617px;
    background: url(../images/dt_banner_bg.jpg) no-repeat center center;
    background-size: cover;
    overflow: hidden;
}

/* ========== 通用区块标题 ========== */
.dt-section{
    padding: 80px 0;
}
.dt-section-tit{
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    color: #1A1A2E;
    line-height: 1.3;
    margin-bottom: 50px;
}

/* ========== 数字产业赋能 ========== */
.dt-intro{
    background: url(../images/dt_section_bg.jpg) no-repeat center center;
    position: relative;
}
.dt-intro .dt-intro-con{
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    justify-content: space-between;
    -webkit-justify-content: space-between;
}
.dt-intro .dt-intro-left{
    width: 520px;
    flex-shrink: 0;
}
.dt-intro .dt-intro-subtit{
    font-size: 28px;
    font-weight: bold;
    color: #1A1A2E;
    line-height: 1.4;
    margin-bottom: 24px;
}
.dt-intro .dt-intro-text{
    font-size: 16px;
    color: #555;
    line-height: 2;
    text-align: justify;
}
.dt-intro .dt-intro-right{
    width: 600px;
    flex-shrink: 0;
}
.dt-intro .dt-intro-right img{
    width: 100%;
    display: block;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(45,113,255,0.15);
}

/* ========== 全场景应用行业领域 ========== */
.dt-scenes{
    background: #F5F8FF;
}
.dt-scenes .dt-scenes-list{
    display: flex;
    display: -webkit-flex;
    flex-wrap: wrap;
    -webkit-flex-wrap: wrap;
    justify-content: space-between;
    -webkit-justify-content: space-between;
}
.dt-scenes .dt-scene-item{
    width: 282px;
    margin-bottom: 30px;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    box-shadow: 0px 1px 4px 0px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    -webkit-transition: all 0.3s ease;
}
.dt-scenes .dt-scene-item:hover{
    transform: translateY(-6px);
    -webkit-transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(45,113,255,0.18);
}
.dt-scenes .dt-scene-img{
    width: 100%;
    height: 182px;
    overflow: hidden;
}
.dt-scenes .dt-scene-img img{
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform 0.5s ease;
    -webkit-transition: transform 0.5s ease;
}
.dt-scenes .dt-scene-item:hover .dt-scene-img img{
    transform: scale(1.08);
    -webkit-transform: scale(1.08);
}
.dt-scenes .dt-scene-con{
    padding: 20px 18px 24px;
}
.dt-scenes .dt-scene-icon{
    width: 36px;
    height: 36px;
    margin-right: 10px;
    margin-bottom: 10px;
}
.dt-scenes .dt-scene-icon img{
    width: 100%;
    height: 100%;
    display: block;
}
.dt-scenes .dt-scene-name{
    font-size: 18px;
    font-weight: bold;
    color: #1A1A2E;
    margin-bottom: 10px;
}
.dt-scenes .dt-scene-desc{
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== 四大核心功能 ========== */
.dt-features{
    background: #F5F6F8;padding:80px 0;
}
.dt-features .dt-features-list{
    display: flex;
    display: -webkit-flex;
    flex-wrap: wrap;
    -webkit-flex-wrap: wrap;
    justify-content: space-between;
    -webkit-justify-content: space-between;
    margin-top: -20px;
}
.dt-features .dt-feature-item-box{width: 50%;padding:20px;}
.dt-features .dt-feature-item{
    width: 100%;
    height:100%;
    background: #fff;
    border-radius: 16px;
    padding: 40px 36px;
    box-sizing: border-box;
    text-align: center;
    border: 1px solid #fff;
    transition: all 0.3s ease;
    -webkit-transition: all 0.3s ease;
}
.dt-features .dt-feature-item:hover{
    border-color: #eee;
    box-shadow: 0 8px 30px rgba(230, 233, 241, 0.12);
    transform: translateY(-4px);
    -webkit-transform: translateY(-4px);
}
.dt-features .dt-feature-icon{
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
}
.dt-features .dt-feature-icon img{
    width: 100%;
    height: 100%;
    display: block;
}
.dt-features .dt-feature-name{
    font-size: 22px;
    font-weight: bold;
    color: #1A1A2E;
    margin-bottom: 16px;
}
.dt-features .dt-feature-desc{
    font-size: 15px;
    color: #666;
    line-height: 1.9;
}

/* ========== 技术优势 ========== */
.dt-advantages{
    background: #fff;
    position: relative;
    padding:80px 0;
}
.dt-advantages .dt-wrap{
    position: relative;
    z-index: 2;
    background: url(../images/dt_advantage_bg.jpg) no-repeat center center;
    background-size: cover;
    padding:40px 20px 55px;
    border-radius: 10px;
}
.dt-advantages .dt-advantages-list{
    display: flex;
    display: -webkit-flex;
    flex-wrap: wrap;
    -webkit-flex-wrap: wrap;
    justify-content: space-between;
    -webkit-justify-content: space-between;
    margin-top: -25px;
}
.dt-advantages .dt-adv-item-box{width: 50%;padding:25px 40px;}
.dt-advantages .dt-adv-item{
    width: 100%;
    height:100%;
    background: rgba(29,140,255,0.1);
    border-radius: 8px;
    border: 1px solid #FFFFFF;
    padding: 20px;
    box-sizing: border-box;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    -webkit-transition: all 0.3s ease;
}
.dt-advantages .dt-adv-item:hover{
    background: rgba(29,140,255,0.15);
    transform: translateY(-3px);
    -webkit-transform: translateY(-3px);
}
.dt-advantages .dt-adv-head{
    display: flex;
    display: -webkit-flex;
    align-items: center;
    -webkit-align-items: center;
    margin-bottom: 10px;line-height: 30px;
}
.dt-advantages .dt-adv-dot{
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: url(../images/dt_icon_dot.jpg) no-repeat center;
    background-size: contain;
    margin-right: 15px;
    flex-shrink: 0;
}
.dt-advantages .dt-adv-name{
    font-size: 20px;
    font-weight: bold;
    color: #3073FF;
}
.dt-advantages .dt-adv-desc{
    font-size: 16px;
    color: #333;
    line-height: 1.8;
}

/* ========== 响应式 ========== */
@media screen and (max-width:1480px){
    .dt-wrap{ width: 94%; }
}
@media screen and (max-width:1280px){
    .dt-wrap{ width: 94%; }
    .dt-banner .dt-banner-con{ width: 94%; }
    .dt-intro .dt-intro-left{ width: 46%; }
    .dt-intro .dt-intro-right{ width: 50%; }
    .dt-scenes .dt-scene-item{ width: 23.5%; }
    /* .dt-features .dt-feature-item{ width: 48.5%; } */
}

@media screen and (max-width:960px){
    .dt-banner{ height: 480px; }
    .dt-banner .dt-banner-tit{ font-size: 36px; }
    .dt-banner .dt-banner-desc{ font-size: 16px; }
    .dt-section{ padding: 50px 0; }
    .dt-section-tit{ font-size: 28px; margin-bottom: 36px; }
    .dt-intro .dt-intro-con{ flex-direction: column; }
    .dt-intro .dt-intro-left{ width: 100%; margin-bottom: 30px; }
    .dt-intro .dt-intro-right{ width: 100%; }
    .dt-scenes .dt-scene-item{ width: 48%; }
    .dt-features .dt-feature-item{ padding: 30px 24px;}
    .dt-features .dt-feature-item-box{ width: 100%;padding-left: 0;padding-right: 0;padding-bottom: 0;}
    .dt-advantages .dt-adv-item-box{ width: 100%;padding-left: 0;padding-right: 0;padding-bottom: 0;}
}

@media screen and (max-width:600px){
    .dt-banner{ height: 380px; background-position: 70% center; }
    .dt-banner .dt-banner-tit{ font-size: 28px; margin-bottom: 16px; }
    .dt-banner .dt-banner-desc{ font-size: 14px; margin-bottom: 24px; }
    .dt-banner .dt-banner-btn{ width: 120px; height: 40px; line-height: 40px; font-size: 14px; }
    .dt-section{ padding: 36px 0; }
    .dt-section-tit{ font-size: 22px; margin-bottom: 28px; }
    .dt-intro .dt-intro-subtit{ font-size: 20px; }
    .dt-intro .dt-intro-text{ font-size: 14px; }
    .dt-scenes .dt-scene-item{ width: 100%; }
    .dt-scenes .dt-scene-img{ height: 160px; }
    .dt-features .dt-feature-icon{ width: 60px; height: 60px; }
    .dt-features .dt-feature-name{ font-size: 18px; }
    .dt-features .dt-feature-desc{ font-size: 14px; }
}