/* 首页样式：简体中文, 桌面端 */


/* 移动端样式 (宽度小于等于768px) */
@media (min-width: 769px) {
/* 桌面端第一屏样式 - 左文右图布局 */
.screen1 {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 720px;
    align-items: flex-start;
    box-sizing: border-box;
    min-height: 100vh;
    padding: 60px 0 60px 0px;
    gap: 60px;
}

/* 文字容器样式 - 左侧 */
.screen1 .text-content-container-screen1 {
    display: flex;
    flex-direction: column;
    padding: 0;
    max-width: 600px;
    margin: -80px 0px 0px 150px;  /* 上 右 下 左 */
}

/* 文字容器内的标题和段落样式 */
.screen1 .text-content-container-screen1 h1 {
    font-size: 96px;
    font-weight: bold;
    color: #000000;
    margin-bottom: 20px;
    line-height: 1.2;
}

.screen1 .text-content-container-screen1 h2 {
    font-size: 48px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 16px;
    line-height: 1.3;
}

.screen1 .text-content-container-screen1 h3 {
    font-size: 32px;
    font-weight: 500;
    color: #000000;
    margin-bottom: 12px;
    line-height: 1.4;
}

.screen1 .text-content-container-screen1 p {
    font-size: 24px;
    color: #000000;
    line-height: 2.0;
    margin-bottom: 16px;
    width: 700px;        /* 固定宽度 */
}

/* 图片容器样式 - 右侧 */
.screen1 .image-content-container-screen1 {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

/* 图片容器内的图片区域样式 */
.screen1 .image-content-container-screen1 figure {
    width: 720px;
    height: 700px;
    margin: 0;
    padding: 0;
}

.screen1 .image-content-container-screen1 figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-top-left-radius: 150px;
    border-bottom-left-radius: 150px;
}

/* 图片容器内的图片说明样式 */
.screen1 .image-content-container-screen1 figcaption {
    font-size: 14px;
    color: #666666;
    text-align: center;
    margin-top: 10px;
    padding-right: 20px;
}

/* 桌面端第二屏样式 - 左图右文布局 */
.screen2 {
    width: 100%;
    display: grid;
    grid-template-columns: 720px 1fr;
    align-items: flex-start;
    box-sizing: border-box;
    min-height: 100vh;
    padding: 60px 60px 60px 0;
    gap: 60px;
}

/* 图片容器样式 - 左侧 */
.screen2 .image-content-container-screen2 {
    order: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

/* 图片容器内的图片区域样式 */
.screen2 .image-content-container-screen2 figure {
    width: 720px;
    height: 700px;
    margin: 0;
    padding: 0;
}

.screen2 .image-content-container-screen2 figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-top-left-radius: 0;
    border-top-right-radius: 150px;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 150px;
}

/* 图片容器内的图片说明样式 */
.screen2 .image-content-container-screen2 figcaption {
    font-size: 14px;
    color: #666666;
    text-align: center;
    margin-top: 10px;
    padding-left: 20px;
}

/* 文字容器样式 - 右侧 */
.screen2 .text-content-container-screen2 {
    order: 2;
    display: flex;
    flex-direction: column;
    padding: 0;
    max-width: 600px;
    margin: 0px 0px 0px 150px;  /* 上 右 下 左 */
}

/* 文字容器内的标题和段落样式 */
.screen2 .text-content-container-screen2 h2 {
    font-size: 48px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 16px;
    line-height: 1.3;
}

.screen2 .text-content-container-screen2 p {
    font-size: 24px;
    color: #000000;
    line-height: 2.0;
    margin-bottom: 16px;
    width: 700px;        /* 固定宽度 */
}

/* 桌面端第三屏样式 - 左文右图布局 */
.screen3 {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 720px;
    align-items: flex-start;
    box-sizing: border-box;
    min-height: 100vh;
    padding: 60px 0 60px 60px;
    gap: 60px;
}

/* 文字容器样式 - 左侧 */
.screen3 .text-content-container-screen3 {
    display: flex;
    flex-direction: column;
    padding: 0;
    max-width: 600px;
    margin: 0px 0px 0px 100px;  /* 上 右 下 左 */
}

/* 文字容器内的标题和段落样式 */
.screen3 .text-content-container-screen3 h2 {
    font-size: 48px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 16px;
    line-height: 1.3;
}

.screen3 .text-content-container-screen3 p {
    font-size: 24px;
    color: #000000;
    line-height: 2.0;
    margin-bottom: 16px;
    width: 700px;        /* 固定宽度 */
}

/* 图片容器样式 - 右侧 */
.screen3 .image-content-container-screen3 {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

/* 图片容器内的图片区域样式 */
.screen3 .image-content-container-screen3 figure {
    width: 720px;
    height: 700px;
    margin: 0;
    padding: 0;
}

.screen3 .image-content-container-screen3 figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-top-left-radius: 150px;
    border-bottom-left-radius: 150px;
}

/* 图片容器内的图片说明样式 */
.screen3 .image-content-container-screen3 figcaption {
    font-size: 14px;
    color: #666666;
    text-align: center;
    margin-top: 10px;
    padding-right: 20px;
}

/* 桌面端第四屏样式 - 左图右文布局 */
.screen4 {
    width: 100%;
    display: grid;
    grid-template-columns: 720px 1fr;
    align-items: flex-start;
    box-sizing: border-box;
    min-height: 100vh;
    padding: 60px 60px 60px 0;
    gap: 60px;
}

/* 图片容器样式 - 左侧 */
.screen4 .image-content-container-screen4 {
    order: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

/* 图片容器内的图片区域样式 */
.screen4 .image-content-container-screen4 figure {
    width: 720px;
    height: 700px;
    margin: 0;
    padding: 0;
}

.screen4 .image-content-container-screen4 figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-top-right-radius: 150px;
    border-bottom-right-radius: 150px;
}

/* 图片容器内的图片说明样式 */
.screen4 .image-content-container-screen4 figcaption {
    font-size: 14px;
    color: #666666;
    text-align: center;
    margin-top: 10px;
    padding-left: 20px;
}

/* 文字容器样式 - 右侧 */
.screen4 .text-content-container-screen4 {
    order: 2;
    display: flex;
    flex-direction: column;
    padding: 0;
    max-width: 600px;
    margin: 0px 0px 0px 150px;  /* 上 右 下 左 */
}

/* 文字容器内的标题和段落样式 */
.screen4 .text-content-container-screen4 h2 {
    font-size: 48px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 16px;
    line-height: 1.3;
}

.screen4 .text-content-container-screen4 p {
    font-size: 24px;
    color: #000000;
    line-height: 2.0;
    margin-bottom: 16px;
    width: 700px;        /* 固定宽度 */
}

/* 桌面端第五屏样式 - 左文右图布局 */
.screen5 {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 720px;
    align-items: flex-start;
    box-sizing: border-box;
    min-height: 100vh;
    padding: 60px 0 60px 60px;
    gap: 60px;
}

/* 文字容器样式 - 左侧 */
.screen5 .text-content-container-screen5 {
    display: flex;
    flex-direction: column;
    padding: 0;
    max-width: 600px;
    margin: 0px 0px 0px 100px;  /* 上 右 下 左 */
}

/* 文字容器内的标题和段落样式 */
.screen5 .text-content-container-screen5 h2 {
    font-size: 48px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 16px;
    line-height: 1.3;
}

.screen5 .text-content-container-screen5 p {
    font-size: 24px;
    color: #000000;
    line-height: 2.0;
    margin-bottom: 16px;
    width: 700px;        /* 固定宽度 */
}

/* 图片容器样式 - 右侧 */
.screen5 .image-content-container-screen5 {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

/* 图片容器内的图片区域样式 */
.screen5 .image-content-container-screen5 figure {
    width: 720px;
    height: 700px;
    margin: 0;
    padding: 0;
}

.screen5 .image-content-container-screen5 figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-top-left-radius: 150px;
    border-bottom-left-radius: 150px;
}

/* 图片容器内的图片说明样式 */
.screen5 .image-content-container-screen5 figcaption {
    font-size: 14px;
    color: #666666;
    text-align: center;
    margin-top: 10px;
    padding-right: 20px;
}
}

/* ====================================
   图片懒加载优化样式 - 完全匹配你的HTML结构
   添加到你的 mobile.css 和 desktop.css 文件末尾
   ==================================== */

/* 基础图片过渡效果 */
.image-content-container-screen1 img,
.image-content-container-screen2 img,
.image-content-container-screen3 img,
.image-content-container-screen4 img,
.image-content-container-screen5 img {
    transition: opacity 0.3s ease, filter 0.3s ease;
}

/* 懒加载中的图片样式 */
.image-content-container-screen2 img.lazy-loading,
.image-content-container-screen3 img.lazy-loading,
.image-content-container-screen4 img.lazy-loading,
.image-content-container-screen5 img.lazy-loading {
    opacity: 0.7;
    filter: blur(1px);
    /* 添加加载动画背景 */
    background-color: #f5f5f5;
    background-image: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    background-size: 200px 100%;
    background-repeat: no-repeat;
    animation: loading-shimmer 1.5s infinite;
}

/* 图片加载完成后的样式 */
.image-content-container-screen2 img.lazy-loaded,
.image-content-container-screen3 img.lazy-loaded,
.image-content-container-screen4 img.lazy-loaded,
.image-content-container-screen5 img.lazy-loaded {
    opacity: 1;
    filter: none;
    animation: none;
    background: none;
}

/* 图片加载失败的样式 */
.image-content-container-screen2 img.lazy-error,
.image-content-container-screen3 img.lazy-error,
.image-content-container-screen4 img.lazy-error,
.image-content-container-screen5 img.lazy-error {
    opacity: 0.5;
    background-color: #f0f0f0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Ctext x='50%25' y='50%25' text-anchor='middle' dy='0.3em' fill='%23999' font-size='12'%3E加载失败%3C/svg%3E");
    background-position: center;
    background-repeat: no-repeat;
    animation: none;
}

/* 首屏图片（立即加载，不使用懒加载） */
.image-content-container-screen1 img.hero-image {
    /* 确保首屏图片立即显示 */
    opacity: 1;
    filter: none;
}

/* 加载动画关键帧 */
@keyframes loading-shimmer {
    0% { 
        background-position: -200px 0; 
    }
    100% { 
        background-position: calc(200px + 100%) 0; 
    }
}

/* ====================================
   移动端特定样式 (max-width: 768px)
   ==================================== */
@media (max-width: 768px) {
    /* 移动端图片容器在加载时的占位 - 匹配你的375x500尺寸 */
    .image-content-container-screen2 img.lazy-loading,
    .image-content-container-screen3 img.lazy-loading,
    .image-content-container-screen4 img.lazy-loading,
    .image-content-container-screen5 img.lazy-loading {
        min-height: 500px; /* 匹配你CSS中的移动端高度 */
        width: 375px;      /* 匹配你CSS中的移动端宽度 */
    }
}

/* ====================================
   桌面端特定样式 (min-width: 769px)  
   ==================================== */
@media (min-width: 769px) {
    /* 桌面端图片容器在加载时的占位 - 匹配你的720x700尺寸 */
    .image-content-container-screen2 img.lazy-loading,
    .image-content-container-screen3 img.lazy-loading,
    .image-content-container-screen4 img.lazy-loading,
    .image-content-container-screen5 img.lazy-loading {
        min-height: 700px; /* 匹配你CSS中的桌面端高度 */
        width: 720px;      /* 匹配你CSS中的桌面端宽度 */
    }
}

/* ====================================
   等待懒加载的图片样式
   ==================================== */
.image-content-container-screen2 img.awaiting-lazy-load,
.image-content-container-screen3 img.awaiting-lazy-load,
.image-content-container-screen4 img.awaiting-lazy-load,
.image-content-container-screen5 img.awaiting-lazy-load {
    /* 等待main.js加载JSON时的样式 */
    background-color: #f8f8f8;
    opacity: 0.8;
}