/* 重点项目展示样式 */
.key-projects {
    background: url('../images/bg_2.png') repeat;
    background-size: auto;
    background-position: 0 center;
    background-repeat: repeat-x;
    height: 700px;
    margin: 100px 0;
    display: flex;
    align-items: center;
    z-index: 1;
    position: relative;
    /* animation: moveBackground 200s linear infinite; */
}

@keyframes moveBackground {
    0% {
        background-position: 0 center;
    }

    100% {
        background-position: 10000% center;
    }
}

.projects-left {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.projects-right {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.projects-left.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.projects-right.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.projects-left .projects-swiper-left {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease 0.3s, transform 0.6s ease 0.3s;
}

.projects-right .projects-swiper-right {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease 0.3s, transform 0.6s ease 0.3s;
}

.projects-left.animate-in .projects-swiper-left,
.projects-right.animate-in .projects-swiper-right {
    opacity: 1;
    transform: translateY(0);
}

.projects-swiper-left .swiper-slide,
.projects-swiper-right .swiper-slide {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.projects-left.animate-in .projects-swiper-left .swiper-slide:nth-child(1),
.projects-right.animate-in .projects-swiper-right .swiper-slide:nth-child(1) {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.5s;
}

.projects-left.animate-in .projects-swiper-left .swiper-slide:nth-child(2),
.projects-right.animate-in .projects-swiper-right .swiper-slide:nth-child(2) {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.6s;
}

.projects-left.animate-in .projects-swiper-left .swiper-slide:nth-child(3),
.projects-right.animate-in .projects-swiper-right .swiper-slide:nth-child(3) {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.7s;
}

.projects-container {
    width: var(--width-section);
    margin: 0 auto;
}

.projects-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.projects-title img {
    max-width: 100%;
    height: auto;
}

.projects-more a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

.projects-more a:hover {
    color: #fff;
    font-weight: bold;
}

.projects-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.projects-left,
.projects-right {
    flex: 1;
}

.projects-swiper-left,
.projects-swiper-right {
    width: 580px;
    height: 400px;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.projects-swiper-left .swiper-slide,
.projects-swiper-right .swiper-slide {
    position: relative;
}

.projects-swiper-left .swiper-slide img,
.projects-swiper-right .swiper-slide img {
    width: 100%;
    height: 400px;
    object-fit: fill;
    transition: transform 0.3s ease, filter 0.3s ease;
    cursor: pointer;
}

.projects-swiper-left .swiper-slide img:hover,
.projects-swiper-right .swiper-slide img:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.projects-swiper-left .swiper-slide,
.projects-swiper-right .swiper-slide {
    position: relative;
    overflow: hidden;
}

.project-title {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    padding: 20px;
    color: #333;
}

.project-title h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 500;
    color: #333;
    text-align: center;
    transition: color 0.3s ease;
    cursor: pointer;
}

.project-title h3:hover {
    color: var(--mainColor);
}

.projects-pagination-left,
.projects-pagination-right {
    bottom: 70px !important;
}

.projects-pagination-left .swiper-pagination-bullet,
.projects-pagination-right .swiper-pagination-bullet {
    width: 20px;
    height: 20px;
    background: url('../images/banner_dian.png') no-repeat center;
    background-size: contain;
    opacity: 1;
    margin: 0 5px;
}

.projects-pagination-left .swiper-pagination-bullet-active,
.projects-pagination-right .swiper-pagination-bullet-active {
    width: 25px;
    height: 26px;
    background: url('../images/banner_dian_select.png') no-repeat center;
    background-size: contain;
    transform: translateY(3px);
}

@media (max-width: 1200px) {
    .projects-content {
        gap: 30px;
    }

    .projects-left,
    .projects-right {
        width: 100%;
    }

    .projects-swiper-left,
    .projects-swiper-right {
        width: 100%;
        max-width: 693px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .key-projects {
        padding: 40px 0;
    }

    .projects-container {
        padding: 0 20px;
    }

    .projects-header {
        gap: 20px;
        text-align: center;
    }

    .projects-swiper-left,
    .projects-swiper-right {
        height: 300px;
    }

    .projects-swiper-left .swiper-slide img,
    .projects-swiper-right .swiper-slide img {
        height: 300px;
    }
}