/*==================================================
CASE PAGE BASE
==================================================*/
.case_page{
    width:100%;
    overflow:hidden;
    background:#ffffff;
    color:#10244a;
    margin-top: 11rem;
}
/*==================================================
BANNER
==================================================*/
.case_banner{
    position:relative;
    padding-top:0;
    background:#fff;
    overflow: hidden;
}
.case_banner .case_container{
    position:relative;
    display:flex;
    align-items:center;
    border-radius: 999rem;
}
.case_banner .case_container::before{
    content: "";
    position: absolute;
    width: 106%;
    inset: -1rem;
    background: radial-gradient(ellipse at center, rgba(255, 255, 255, .82) 58%, rgba(255, 255, 255, .55) 91%, rgba(255, 255, 255, 0) 100%);
    filter: blur(1.2rem);
}
.case_banner_content{
    position: relative;
    z-index: 2;
    width: 165rem;
    height: 77rem;
    margin: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
}
.case_banner_tag{
    line-height: 1;
    margin-bottom: 2.8rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--blue);
    letter-spacing: .1rem;
}
.case_banner_tag span{
    width: 3rem;
    height: .2rem;
    background: var(--blue);
    display: block;
}
.case_banner_title{
    width: 68rem;
    margin:0;
    font-size:6.4rem;
    line-height:1.08;
    font-weight:bold;
    letter-spacing:-.15rem;
    color:#10244a;
}
.case_banner_title span{
    color:#ff6500;
}
.case_banner_desc{
    width:43rem;
    margin-top:3rem;
    font-size:1.6rem;
    line-height:1.8;
    color:#596579;
}
.case_banner_line{
    margin-top:2.8rem;
    width:4rem;
    height:.3rem;
    background:#ff6500;
}
.case_banner_image{
    position:absolute;
    top:-2rem;
    left: 0;
}
.case_banner_image img{
    width:100%;
    height:100%;
    object-fit:cover;
}
/*==================================================
BANNER INDUSTRY MENU
==================================================*/
.case_industry_list{
    height:9rem;
    display:flex;
    align-items:center;
    justify-content:flex-start;
    gap:5.2rem;
}
.case_industry_item{
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:1.2rem;
    min-width:7rem;
}
.case_industry_item i{
    width:2.8rem;
    height:2.8rem;
    display:block;
}
.case_industry_item span{
    font-size:1.3rem;
    color:#273b62;
    white-space:nowrap;
}
/*==================================================
SCENE COMMON
==================================================*/
.case_scene{
    padding:1rem 0;
}
.case_scene_row{
    display:flex;
    align-items:stretch;
    height:50rem;
    background-color: #f4f8ff;
}
.case_scene_info{
    width:63rem;
    background:#f4f8ff;
    display:flex;
    padding:4rem 4rem;
    position:relative;
}
.case_scene_number{
    width:10rem;
    font-size:7rem;
    line-height:1;
    font-weight:700;
    color:#eaf0fa;
}
.case_scene_content{
    flex:1;
}
.case_scene_tag{
    font-size:1.3rem;
    color:#2568ff;
    font-weight:700;
    letter-spacing:.08rem;
    margin-bottom:2rem;
}
.case_scene_content h2{
    margin:0;
    font-size:3.5rem;
    line-height:1.2;
    color:#10244a;
    font-weight:700;
}
.case_scene_content h2 span{
    color:#ff6500;
}
.case_scene_content p{
    width:34rem;
    margin-top:2.5rem;
    font-size:1.5rem;
    line-height:1.8;
    color:#58657b;
}
.case_scene_content ul{
    margin:2.5rem 0 0;
    padding:0;
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:1.3rem;
}
.case_scene_content li{
    position:relative;
    list-style:none;
    padding-left:2rem;
    font-size:1.4rem;
    color:#263858;
}
.case_scene_content li::before{
    content:"✓";
    position:absolute;
    left:0;
    top:0;
    color:#2568ff;
    font-weight:700;
}
.case_scene_image{
    flex:1;
    overflow:hidden;
}
.case_scene_image img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.case_scene_reverse{
    flex-direction:row-reverse;
}
/*==================================================
INDUSTRY APPLICATION CARDS
==================================================*/
.case_industry_cards{
    padding:12rem 0;
    background:#fff;
}
.case_industry_grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:2rem;
}
.case_industry_card{
    position:relative;
    height:48rem;
    overflow:hidden;
    background:#f5f7fb;
}
.case_card_image{
    width:100%;
    height:100%;
}
.case_card_image img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .8s ease;
}
.case_industry_card:hover .case_card_image img{
    transform:scale(1.06);
}
.case_card_content{
    position:absolute;
    left:0;
    right:0;
    bottom:0;
    padding:3rem;
    color:#fff;
    background:linear-gradient(
        to top,
        rgba(10,25,55,.85),
        rgba(10,25,55,0)
    );
}
.case_card_title{
    display:flex;
    align-items:center;
    gap:1.2rem;
    font-size:2rem;
    font-weight:700;
    letter-spacing:.05rem;
}
.case_card_icon{
    display:block;
    width:1.8rem;
    height:1.8rem;
    border-radius:50%;
    background:#ff6500;
}
.case_card_content ul{
    margin:2rem 0 0;
    padding:0;
}
.case_card_content li{
    list-style:none;
    font-size:1.4rem;
    line-height:2;
    opacity:.9;
}
/*==================================================
ANIMATION READY
==================================================*/
.case_banner_content,
.case_banner_image,
.case_industry_item,
.case_scene_info,
.case_scene_image,
.case_industry_card,
.case_terrain_intro,
.case_terrain_card{
    will-change:transform,opacity;
}
/*==================================================
RESPONSIVE
==================================================*/
/*==================================================
DETAIL POLISH
==================================================*/
.case_banner_image{
    overflow:hidden;
}
.case_banner_image img{
    transform:scale(1.02);
    transition:transform 1.2s cubic-bezier(.22,.61,.36,1);
}
.case_banner:hover .case_banner_image img{
    transform:scale(1.06);
}
/*==================================================
SCENE IMAGE EFFECT
==================================================*/
.case_scene_image{
    position:relative;
}
.case_scene_image img{
    transition:
    transform 1s cubic-bezier(.22,.61,.36,1);
}
.case_scene_image:hover img{
    transform:scale(1.04);
}
/*==================================================
NUMBER STYLE
==================================================*/
.case_scene_number{
    font-family:Arial, sans-serif;
    letter-spacing:-.2rem;
}
/*==================================================
TITLE DECORATION
==================================================*/
.case_scene_content h2{
    position:relative;
}
.case_scene_content h2::after{
    content:"";
    display:block;
    width:5rem;
    height:.3rem;
    background:#ff6500;
    margin-top:2rem;
}
/*==================================================
INDUSTRY CARD MASK
==================================================*/
.case_industry_card::before{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(
        to top,
        rgba(0,0,0,.35),
        transparent 55%
    );
    z-index:1;
}
.case_card_content{
    z-index:2;
}
.case_industry_card{
    transition:
    transform .45s ease,
    box-shadow .45s ease;
}
.case_industry_card:hover{
    transform:translateY(-1rem);
    box-shadow:
    0 2rem 5rem rgba(16,36,74,.12);
}
/*==================================================
GLOBAL MOTION SUPPORT
==================================================*/
.case_page img{
    backface-visibility:hidden;
    -webkit-backface-visibility:hidden;
}
.case_page *{
    box-sizing:border-box;
}
/*==================================================
SPACING FIX
==================================================*/
.case_banner + .case_scene{
    padding-top:1rem;
}
.case_scene:last-of-type{
    padding-bottom:10rem;
}
.case_industry_cards + .case_terrain{
    margin-top:0;
}
/*==================================================
FONT OPTIMIZATION
==================================================*/
.case_page h1,
.case_page h2,
.case_page h3{
    font-family:
    Arial,
    "Helvetica Neue",
    sans-serif;
}
.case_page p,
.case_page li,
.case_page span{
    font-family:
    Arial,
    "Helvetica Neue",
    sans-serif;
}
/*==================================================
END PART 3
==================================================*/
/*==================================================
FINAL ADAPTATION
==================================================*/
.case_page{
    position:relative;
}
/*==================================================
CONTAINER ALIGNMENT
==================================================*/
.case_banner .case_container,
.case_scene .case_container,
.case_industry_cards .case_container,
.case_terrain .case_container{
    position:relative;
}
/*==================================================
IMAGE QUALITY
==================================================*/
.case_banner_image img,
.case_scene_image img,
.case_card_image img,
.case_terrain_image img{
    image-rendering:auto;
}
/*==================================================
ORANGE ACCENT
==================================================*/
.case_banner_title span,
.case_scene_content h2 span,
.case_terrain_intro h2 span{
    color:#ff6500;
}
.case_banner_tag,
.case_scene_tag{
    color:#2468ff;
}
/*==================================================
LIST OPTIMIZE
==================================================*/
.case_scene_content ul li{
    transition:
    color .3s ease,
    transform .3s ease;
}
.case_scene_content ul li:hover{
    color:#ff6500;
    transform:translateX(.5rem);
}
/*==================================================
CARD TEXT
==================================================*/
.case_card_title{
    position:relative;
}
.case_card_content{
    transform:translateY(0);
    transition:
    transform .45s ease;
}
.case_industry_card:hover .case_card_content{
    transform:translateY(-.8rem);
}
/*==================================================
CASE FAQ SECTION
==================================================*/
.casefaq_section{
    width:100%;
    padding:12rem 0;
    background:#f5f8fe;
}
.casefaq_container{
    width:165rem;
    margin:0 auto;
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:8rem;
}
/*==================================================
LEFT INTRO
==================================================*/
.casefaq_intro{
    width:45rem;
    padding-top:3rem;
}
.casefaq_tag{
    font-size:1.3rem;
    line-height:1;
    font-weight:700;
    letter-spacing:.12rem;
    color:#2468ff;
    margin-bottom:2.5rem;
}
.casefaq_title{
    margin:0;
    font-size:5.2rem;
    line-height:1.15;
    font-weight:800;
    letter-spacing:-.1rem;
    color:#10244a;
}
.casefaq_title span{
    color:#ff6500;
}
.casefaq_line{
    width:5rem;
    height:.3rem;
    margin-top:3rem;
    background:#ff6500;
}
.casefaq_desc{
    width:38rem;
    margin-top:3rem;
    font-size:1.6rem;
    line-height:1.8;
    color:#586579;
}
/*==================================================
CONTACT CARD
==================================================*/
.casefaq_contact{
    margin-top:5rem;
    width:100%;
    min-height:15rem;
    padding:3rem;
    display:flex;
    align-items:center;
    gap:2.5rem;
    background:#ffffff;
    border-radius:1.6rem;
    border:.1rem solid #e5ecfa;
}
.casefaq_contact_icon{
    width:6rem;
    height:6rem;
    flex:none;
    border-radius:50%;
    background:#edf4ff;
    display:flex;
    justify-content:center;
    align-items:center;
}
.casefaq_contact_icon span{
    width:2.5rem;
    height:2.5rem;
    border-radius:50%;
    background:#2468ff;
}
.casefaq_contact_text h3{
    margin:0;
    font-size:2rem;
    color:#10244a;
}
.casefaq_contact_text p{
    margin:1rem 0;
    font-size:1.4rem;
    color:#66758c;
}
.casefaq_contact_text a{
    font-size:1.5rem;
    font-weight:600;
    color:#2468ff;
    text-decoration:none;
}
/*==================================================
FAQ LIST
==================================================*/
.casefaq_list{
    width:95rem;
    display:flex;
    flex-direction:column;
    gap:1.5rem;
}
.casefaq_item{
    background:#ffffff;
    border-radius:1.4rem;
    overflow:hidden;
    border:.1rem solid #e7edf8;
    transition:.35s ease;
    opacity:1;
}
.casefaq_item:hover{
    box-shadow:
    0 1.5rem 4rem rgba(16,36,74,.08);
}
.casefaq_question{
    height:9rem;
    padding:0 3.5rem;
    display:flex;
    align-items:center;
    justify-content:space-between;
    cursor:pointer;
}
.casefaq_question span{
    font-size:2rem;
    font-weight:600;
    color:#10244a;
}
.casefaq_question i{
    width:3rem;
    height:3rem;
    position:relative;
    border-radius:50%;
    background:#edf4ff;
    flex:none;
}
.casefaq_question i::before,
.casefaq_question i::after{
    content:"";
    position:absolute;
    background:#2468ff;
    left:50%;
    top:50%;
    transform:translate(-50%,-50%);
}
.casefaq_question i::before{
    width:1.2rem;
    height:.2rem;
}
.casefaq_question i::after{
    width:.2rem;
    height:1.2rem;
    transition:.3s;
}
/*==================================================
ANSWER
==================================================*/
.casefaq_answer{
    max-height:0;
    overflow:hidden;
    padding:0 3.5rem;
    font-size:1.6rem;
    line-height:1.8;
    color:#596579;
    transition:
    max-height .45s ease,
    padding .45s ease;
}
.casefaq_item.active{
    border-color:#d9e6ff;
}
.casefaq_item.active 
.casefaq_answer{
    max-height:20rem;
    padding-bottom:3rem;
}
.casefaq_item.active 
.casefaq_question i::after{
    transform:
    translate(-50%,-50%)
    rotate(90deg);
}
.casefaq_item.active 
.casefaq_question{
    background:#fbfdff;
}
/*==================================================
SCROLL READY
==================================================*/
.casefaq_intro,
.casefaq_item{
    will-change:transform,opacity;
}
/*==================================================
RESPONSIVE
==================================================*/
@media(max-width:1700px){
    .casefaq_container{
        width:calc(100% - 8rem);
    }
}
@media(max-width:1200px){
    .casefaq_container{
        flex-direction:column;
    }
    .casefaq_intro,
    .casefaq_list{
        width:100%;
    }
}
@media(max-width:768px){
    .casefaq_section{
        padding:8rem 0;
    }
    .casefaq_container{
        width:calc(100% - 4rem);
        gap:4rem;
    }
    .casefaq_title{
        font-size:3.8rem;
    }
    .casefaq_question{
        padding:0 2rem;
    }
    .casefaq_question span{
        font-size:1.6rem;
    }
    .casefaq_answer{
        padding-left:2rem;
        padding-right:2rem;
    }
}
.case_industry_card{
    margin-top: 0;
}
.case_industry_card:nth-child(even) {
    margin-top: 3.5rem; /* 按设计调整 32~64px */
}

@media (max-width: 768px) {
    .case_industry_card:nth-child(even) {
        margin-top: 0;
    }
}