/* 主体内容样式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', 'Microsoft YaHei', sans-serif;
    color: #333;
    line-height: 1.6;
}

/* 轮播图容器样式 */
.slider-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    height: 0;
    padding-bottom: 40%; /* 保持宽高比 */
    opacity: 0; /* 初始透明 */
    transform: translateY(20px);
    transition: opacity 1s ease-out, transform 1s ease-out;
    will-change: opacity, transform;
}

/* 轮播图样式 */
.slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* 单张轮播图样式 */
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

/* 当前活动幻灯片 */
.slide.active {
    opacity: 1;
    z-index: 1;
}

/* 轮播图图片样式 - 建议使用2560x700像素的图片 */
.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* 轮播图链接按钮样式 */
.slide-link {
    position: absolute;
    bottom: 60px; /* 增加这个值，确保在指示点上方 */
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(22, 55, 98, 0.7);
    color: white;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 18px;
    transition: all 0.3s ease;
    z-index: 3;
    white-space: nowrap;
}

/* 轮播图链接悬停效果 */
.slide-link:hover {
    background-color: rgba(22, 55, 98, 0.9);
}

/* 公司介绍区域样式 */
.company-intro {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 27.34%; /* 700/2560 ≈ 27.34% */
}

/* 公司介绍图片样式 */
.company-intro img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease-out, transform 1s ease-out;
    will-change: opacity, transform;
}

/* 公司介绍文本样式 */
.intro-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    width: 80%;
    max-width: 800px;
    background-color: rgba(22, 55, 98, 0.7);
    padding: 30px;
    border-radius: 8px;
    z-index: 2;
}

.intro-text h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.intro-text p {
    font-size: 18px;
    margin: 0;
}

/* 公司成就区域样式 - 恢复原来的固定高度 */
.company-achievements {
    position: relative;
    width: 100%;
    height: 500px; /* 恢复固定高度 */
}

/* 公司成就图片样式 */
.company-achievements img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease-out, transform 1s ease-out;
    will-change: opacity, transform;
}

/* 公司成就文本样式 */
.achievements-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    width: 80%;
    max-width: 800px;
    background-color: rgba(22, 55, 98, 0.7);
    padding: 30px;
    border-radius: 8px;
}

.achievements-text h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.achievements-text ul {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 20px;
}

.achievements-text li {
    margin-bottom: 15px;
}

.achievements-text span {
    font-weight: bold;
    color: #ffcc00;
    font-size: 24px;
}

/* 轮播图指示点样式 */
.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    z-index: 2;
    gap: 8px;
}

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

.slider-dot.active {
    background-color: white;
    transform: scale(1.2);
}

.slider-dot:hover {
    background-color: rgba(255, 255, 255, 0.8);
}

/* 统一渐入动画关键帧 */
@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

/* 应用渐入动画 */
.fade-in-element {
    opacity: 1;
    transform: translateY(0);
    animation: fadeIn 1s ease-out forwards;
}

/* 响应式设计 - 平板和手机端 */
@media (max-width: 1024px) {
    .slider-container {
        padding-bottom: 50%;
    }
    
    .company-intro {
        padding-bottom: 35%;
    }
    
    .company-achievements {
        height: 450px; /* 平板端调整高度 */
    }
    
    .intro-text h2, .achievements-text h2 {
        font-size: 32px;
    }
    
    .intro-text p, .achievements-text ul {
        font-size: 16px;
    }
    
    .achievements-text span {
        font-size: 20px;
    }

    .slide-link {
        font-size: 16px;
        padding: 10px 20px;
        bottom: 50px;
    }
}

@media (max-width: 768px) {
    .slider-container {
        padding-bottom: 60%;
    }
    
    .company-intro {
        padding-bottom: 45%;
    }
    
    .company-achievements {
        height: 350px; /* 手机端调整高度 */
    }

    .slide-link {
        display: none;
    }

    /* 同时可以调整指示点的位置，因为按钮隐藏后会有更多空间 */
    .slider-dots {
        bottom: 20px;
    }
    
    .slider-dot {
        width: 10px;
        height: 10px;
    }
    
    .intro-text, .achievements-text {
        padding: 20px;
        width: 90%;
    }
    
    .intro-text h2, .achievements-text h2 {
        font-size: 24px;
        margin-bottom: 15px;
    }
    
    .intro-text p, .achievements-text ul {
        font-size: 14px;
    }
    
    .achievements-text span {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .slider-container {
        padding-bottom: 70%;
    }
    
    .company-intro {
        padding-bottom: 55%;
    }
    
    .company-achievements {
        height: 250px; /* 小手机端调整高度 */
    }
    
    .intro-text h2, .achievements-text h2 {
        font-size: 20px;
    }
    
    .intro-text p, .achievements-text ul {
        font-size: 12px;
    }
    
    .achievements-text li {
        margin-bottom: 10px;
    }
    
    .slide-link {
        bottom: 30px;
    }
}