/* ==================== 首页专属样式 ==================== */

/* ==================== 轮播图 ==================== */
.carousel {
    position: relative;
    height: 1000px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.carousel-container {
    position: relative;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: scale(1.05);
    transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1), transform 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    will-change: opacity, transform;
}

.carousel-slide.active {
    opacity: 1;
    transform: scale(1);
}

/* 图片缩放动画效果 - 更平滑的Ken Burns */
.carousel-slide .carousel-bg {
    transform: scale(1.08);
    transition: transform 8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.carousel-slide.active .carousel-bg {
    transform: scale(1);
}

.carousel-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* 图片轮播时加暗色遮罩，让标题文字更清晰 */
.carousel-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.35);
}

.carousel-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    padding: 20px;
}

.carousel-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.carousel-content p {
    font-size: 1.25rem;
    margin-bottom: 30px;
}

/* 初始状态 - 非激活时隐藏 */
.carousel-slide .carousel-content h1,
.carousel-slide .carousel-content p,
.carousel-slide .carousel-content .btn-primary {
    opacity: 0;
    transform: translate3d(0, 40px, 0);
    transition: opacity 1.2s ease, transform 1.2s ease;
}

/* 激活状态 - 显示并归位 */
.carousel-slide.active .carousel-content h1 {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition-delay: 0.4s;
}

.carousel-slide.active .carousel-content p {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition-delay: 0.7s;
}

.carousel-slide.active .carousel-content .btn-primary {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition-delay: 1s;
}

/* 非激活状态 - 文字淡出 */
.carousel-slide:not(.active) .carousel-content h1,
.carousel-slide:not(.active) .carousel-content p,
.carousel-slide:not(.active) .carousel-content .btn-primary {
    opacity: 0;
    transform: translate3d(0, -10px, 0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.indicator.active {
    background: var(--white);
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--white);
    font-size: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s;
    z-index: 10;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: rgba(255, 255, 255, 0.4);
}

.carousel-prev {
    left: 20px;
}

.carousel-next {
    right: 20px;
}

/* ==================== 产品区块 ==================== */
.products-section {
    padding: 80px 0;
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.product-info {
    padding: 25px;
}

.product-info h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.product-info p {
    color: var(--text-light);
    margin-bottom: 15px;
}

/* ==================== 新闻区块 ==================== */
.news-section {
    padding: 80px 0;
    background: var(--bg-color);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.news-content {
    padding: 25px;
}

.news-content h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.news-content p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.news-meta {
    display: flex;
    gap: 20px;
    color: #999;
    font-size: 0.875rem;
    margin-bottom: 15px;
}

/* ==================== 关于我们简介区块 ==================== */
.about-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
}

.about-section .section-title {
    color: var(--white);
    text-align: left;
}

.about-section .section-title::after {
    margin: 15px 0 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    margin-bottom: 25px;
    font-size: 1.1rem;
    opacity: 0.95;
}

.about-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* ==================== 公司图片展示 ==================== */
.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-image img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .carousel {
        height: 400px;
    }

    .carousel-content h1 {
        font-size: 2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-section .section-title {
        text-align: center;
    }

    .about-section .section-title::after {
        margin: 15px auto 0;
    }

    .about-image {
        margin-top: 30px;
    }
    
    .about-image img {
        max-width: 100%;
    }
}