.section-desc {
    font-size: 1.6vw;
    color: #333;
    margin-bottom: 3vw;
}

.en .section-desc {
    font-weight: 500;
}

/* 第一块：前沿技术 C2E */
.c2e-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 48px;
}

.c2e-left,
.c2e-right {
    background: #fff;
    border-radius: 20px;
    padding: 40px;
}

.video {
    border-radius: 20px;
    width: 100%;
    margin-top: 40px;
    overflow: hidden;
    position: relative;
}

.video video {
    display: block;
    width: 100%;
}

.video .play-btn {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
}

.img-logo {
    margin-bottom: 40px;
}



.subtitle {
    font-size: 1.2vw;
    margin-bottom: 20px;
}

.en .subtitle {
    font-size: 1vw;
}

.small-text {
    color: #838383;
    line-height: 1.6;
    margin-bottom: 30px;
}

.four-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.grid-item {
    background: #faf9f9;
    padding: 20px;
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.grid-icon {
    width: 19%;
    flex-shrink: 0;
    position: relative;
    color: #e6222a;
    margin-right: 1vw;
}

.grid-icon img {
    width: 100%;
}



.grid-text b {
    color: #e6222a;
    font-size: 1.65vw;
    margin-bottom: 7px;
    display: block;
}

.en .grid-text b {
    font-size: 1.3vw;
}

.grid-text b small {
    font-size: 0.85vw;
}

.grid-text p {
    font-size: 1vw;
}

.en .grid-text p {
    font-size: 14px;
}

.c2e-right {
    display: flex;
    align-items: center;
}



.frame-wrapper {
    height: 100%;
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    user-select: none;
    -webkit-user-drag: none;
    touch-action: none;
    display: flex;
    align-items: center;
}

.frame-wrapper img {
    display: block;
    width: 100%;
    object-fit: cover;
    pointer-events: none;
    align-items: center;
}



/* RoboREX 模块 */
.robo-section-title {
    font-size: 22px;
    font-weight: 500;
    margin: 48px 0 20px;
}

.robo-card {
    background: #fff;
    border-radius: 20px;
    padding: 32px;
    margin-bottom: 24px;
}

.three-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.three-item {
    background: #f9fafb;
    padding: 20px;
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.three-icon {
    width: 12%;
    margin-left: 1vw;
}

.three-icon img {
    width: 100%;
}

.three-text h4 {
    font-size: 1.2vw;
    margin: 0.4vw 0;
}

.en .three-text h4 {
    font-size: 1vw;
}

.three-text p {
    color: #838383;
}

.chassis-img-box {
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 60px;
}

.chassis-img-box img {
    width: 100%;
    display: block;
}




.technology {
    padding-bottom: 0;
}

.research {
    background: url(../images/technology-ability-bg.webp) #fafafa no-repeat bottom;
    overflow: hidden;
    background-size: 100% auto;

}

.patent {
    background: url(../images/technology-patent-bg.webp) #fff no-repeat bottom;
    overflow: hidden;
    background-size: 100% auto;
}

.patent {
    background: url(../images/technology-patent-bg.webp) #fff no-repeat bottom;
    overflow: hidden;
    background-size: 100% auto;
}

.honor {
    background: url(../images/technology-honor-bg.webp) #fff no-repeat bottom;
    overflow: hidden;
    background-size: 100% auto;
}



/* 研发能力板块 */
.ability-wrap {
    margin-bottom: 60px;
}

.ability-grid {
    display: flex;
    gap: 2vw;
    align-items: center;
    justify-content: center;
}

.ability-wrap .i {
    margin: 20px 0;
}

.ability-wrap .i img {
    margin: auto;
    max-width: 100%;
}

.ability-card {
    background: rgba(235, 235, 235, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid #FFF;
    padding: 1.8vw;
    padding-bottom: 3vw;
    border-radius: 20px;
    text-align: center;
    flex-grow: 1;
}

.ability-grid:nth-child(4) {
    text-align: center;
    display: block;
}

.ability-grid:nth-child(4) .ability-card {
    width: auto;
    display: inline-block;

}

.ability-card h4 {
    font-size: 1.25vw;
    margin-bottom: 20px;
    border: 2px solid #e6222a;
    border-radius: 10px;
    display: inline-block;
    padding: 1vw 3vw;
    color: #e6222a;
}

.ability-footer {
    display: flex;
    gap: 4vw;
}

.ability-footer span {
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 1.45vw;
    display: flex;
    flex: 1;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid #FFF;
    padding: 1.8vw;
    border-radius: 20px;
    text-align: center;
}

.num-row {
    display: flex;
    gap: 3vw;
}



.num-item b {
    color: #e6222a;
    font-size: 1.95vw;
    margin-bottom: 7px;
    display: block;
}

.num-item b small {
    font-size: 0.85vw;
}

.num-item p {

    color: #838383;
}



/* 研发专利板块 */
.patent-wrap {
    margin-bottom: 40px;
}

.patent-tip {
    text-align: center;
    font-size: 1.22vw;
    color: #F2A349;
    padding: 8px 0;
    position: relative;
    margin-bottom: 5vw;
    display: flex;
    text-align: center;
    justify-content: center;
}

.patent-tip span {
    height: auto;
}

.patent-tip i {
    position: relative;
    top: -18px;
}



.patent-tip i:nth-child(3) {
    transform: scaleX(-1);
}

.patent-tip i img {
    height: 100%;
}



.cert-item img {
    width: 100%;
    display: block;
    height: auto;
}

.swiper-horizontal>.swiper-pagination-bullets.swiper-pagination-bullets-dynamic,
.swiper-pagination-horizontal.swiper-pagination-bullets.swiper-pagination-bullets-dynamic {
    left: 0%;
    transform: translateX(0%);
    white-space: nowrap;
}

.swiper-pagination-bullets-dynamic .swiper-pagination-bullet-active-main {
    width: 8px;
    height: 8px;
}

.honor-list .tch-c {
    background-color: #fff;
    cursor: pointer;
    padding: 10px;
    overflow: hidden;
    height: auto;
}

.honor-list .swiper-wrapper {
    height: auto;
}

.honor-list .tch-c img {
    width: 100%;
}

.img-logo img {
    height: 3vw;
}

.en .architecture {
    margin-top: -1.5vw;
}

@media (max-width: 1224px) {
    .three-icon {
        width: 22%;
        margin-left: 0;
    }

    .three-text h4 {
        font-size: 18px;
        margin: 0.4vw 0;
    }

    .three-text p {
        font-size: 14px;
    }

    .c2e-left,
    .c2e-right,
    .robo-card {
        background: #fff;
        padding: 20px;
    }

    .grid-item {
        padding: 15px;
    }

    .grid-text p {
        font-size: 14px;
    }

    .img-logo {
        margin-bottom: 20px;
    }

    .subtitle,
    .en .subtitle {
        font-size: 18px;
        margin-bottom: 20px;
    }


}


@media (max-width: 1024px) {
    .section-desc {
        font-size: 1.1rem;
        margin-bottom: 15px;
    }

    .c2e-wrap {
        display: flex;
        gap: 15px;
        flex-direction: column;
        margin-bottom: 0;
    }

    .c2e-left,
    .c2e-right,
    .grid-item,
    .robo-card {

        padding: 15px;
    }

    .c2e-wrap {
        margin-bottom: 20px;
    }

    .img-logo {
        margin-bottom: 20px;
    }

    .subtitle {
        margin-bottom: 15px;
        font-weight: 700;
    }

    .en .subtitle {
        font-size: 15px;
        font-weight: 500;
    }

    .small-text {
        margin-bottom: 15px;
        line-height: 2;
    }

    .four-grid,
    .three-grid,
    .ability-grid {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .grid-icon {
        width: 38px;
        margin-right: 15px;
    }

    .grid-text b,
    .en .grid-text b {

        font-size: 16px;
        margin-bottom: 7px;
        display: block;
    }

    .grid-text p {
        font-size: 14px;
    }

    .grid-text b small,
    .num-item b small {
        font-size: 1rem;
    }

    .three-text h4,
    .en .three-text h4 {
        font-size: 15px;
        margin: 00;
    }

    .three-item {
        padding: 15px;
        gap: 15px;
    }

    .three-icon {
        width: 38px;
        margin-left: 0;
    }

    .chassis-img-box {
        height: 40vh;
        margin-bottom: 0;
    }

    .ability-card {
        padding: 25px;
        width: 100%;
    }

    .ability-wrap .i {
        margin: 0;
    }

    .ability-card h4 {
        font-size: 1.2rem;
    }

    .num-item b {
        font-size: 1.6rem;
    }

    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .patent-tip {
        font-size: 14px;
        margin-bottom: 15px;
        padding: 0 20px;
    }

    .patent-tip i {
        top: 0px;
    }

    .patent-tip i img {
        height: 100%;
    }

    .patent-tip i {
        opacity: 0.2;
    }

    .ability-wrap .i img {
        max-width: 70%;
    }

    .ability-grid {
        background: rgba(235, 235, 235, 0.2);
        backdrop-filter: blur(10px);
        border: 1px solid #FFF;
        border-radius: 20px;
        padding: 15px;
    }

    .ability-grid .ability-card {
        padding: 0px;
        background: none;
        backdrop-filter: unset;
        border: none;
    }

    .ability-grid .ability-card h4 {
        border: none;
    }

    .ability-grid:nth-child(4) .ability-card {
        width: 100%;
        display: inline-block;
    }

    .ability-grid:nth-child(4) .ability-card h4 {
        border: 1px solid #e6222a;
        border-radius: 10px;
    }

    .ability-footer span {
        display: block;
        text-align: center;
        font-size: 14px;
        padding: 15px 0;
    }

    .ability-footer span img {
        margin: auto;
        max-width: 35%;
        margin-bottom: 10px;
    }

    .img-logo img {
        height: 8vw;
    }

    .en .patent-tip span {
        width: 80%;
        flex-shrink: 0;
    }
}