/* 返回按钮 */
.mission-back-btn {
    background-color: transparent;
    width: 112px;
    height: 112px;
    border: 0px;
    padding: 0px;
    margin: 0px;
    font-size: 12px;
    cursor: pointer;
}

/* 头部区域 */
.mission-header {
    width: 100%;
    min-height: 400px;
    padding: 2rem 0;
    background-color: #ecedec;
    text-align: center;
    position: relative;
}

.mission-header-btn-wrap {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 112px;
    height: 112px;
}

/* 主要内容区域 */
.mission-main {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    padding: 2rem 0;
    color: #242424;
}

/* 标题样式 */
.mission-title {
    width: 100%;
    text-align: center;
    color: #105E8C;
    font-size: 2rem;
    line-height: 1.4;
    margin: 2rem 0 1.5rem 0;
    font-weight: bold;
}

/* 主要描述文本 */
.mission-description {
    width: 100%;
    text-align: left;
    font-size: 1.125rem;
    line-height: 1.8;
    margin: 1.5rem 0;
}

/* 子标题 */
.mission-subtitle {
    width: 100%;
    text-align: left;
    color: #105E8C;
    font-size: 1.25rem;
    line-height: 1.6;
    margin: 2rem 0 1rem 0;
    font-weight: bold;
}

/* 子描述文本 */
.mission-subdescription {
    width: 100%;
    text-align: left;
    font-size: 1.125rem;
    line-height: 1.8;
    margin: 1rem 0 2rem 0;
}

/* 大图片容器 */
.mission-main-image {
    width: 100%;
    margin: 2rem 0;
    text-align: center;
}

.mission-main-image img {
    width: 100%;
    max-width: 1200px;
    height: auto;
}

/* 内容块容器 */
.mission-content-block {
    width: 100%;
    margin: 2.5rem 0;
    display: flex;
    align-items: center;
    gap: 5rem;
}

/* 文本内容区域 */
.mission-text-content {
    flex: 1;
    min-width: 300px;
}

/* 图片容器 */
.mission-image-container {
    flex: 0 0 auto;
    width: 40%;
    max-width: 600px;
    text-align: center;
}

.mission-image-container img {
    width: 100%;
    height: auto;
}

/* 偶数内容块 - 图片在左边 */
.mission-content-block:nth-child(even) {
    flex-direction: row-reverse;
}

/* 块标题 */
.mission-block-title {
    width: 100%;
    color: #105E8C;
    font-size: 1.5rem;
    line-height: 1.4;
    margin-bottom: 1rem;
    font-weight: bold;
}

/* 块内容容器 */
.mission-block-content {
    width: 100%;
}

/* 块段落通用样式 */
.mission-block-paragraph-1,
.mission-block-paragraph-2 {
    width: 100%;
    font-size: 1.125rem;
    line-height: 1.8;
    margin: 1rem 0;
    text-align: left;
}

/* 平板设备适配 (768px - 1024px) */
@media screen and (max-width: 1024px) {
    .mission-main {
        width: 95%;
        padding: 1.5rem 0;
    }
    
    .mission-title {
        font-size: 1.75rem;
    }
    
    .mission-subtitle {
        font-size: 1.125rem;
    }
    
    .mission-block-title {
        font-size: 1.25rem;
    }
    
    .mission-description,
    .mission-subdescription,
    .mission-block-paragraph-1,
    .mission-block-paragraph-2 {
        font-size: 1rem;
    }
    
    .mission-content-block {
        gap: 1.5rem;
    }
    
    .mission-image-container {
        width: 45%;
    }
}

/* 移动设备适配 (小于768px) */
@media screen and (max-width: 768px) {
    .mission-header {
        min-height: 300px;
        padding: 1rem 0;
    }
    
    .mission-back-btn {
        width: 80px;
        height: 80px;
    }
    
    .mission-header-btn-wrap {
        width: 80px;
        height: 80px;
    }
    
    .mission-main {
        width: 95%;
        padding: 1rem 0;
    }
    
    .mission-title {
        font-size: 1.5rem;
        margin: 1.5rem 0 1rem 0;
    }
    
    .mission-subtitle {
        font-size: 1rem;
        margin: 1.5rem 0 0.75rem 0;
    }
    
    .mission-block-title {
        font-size: 1.125rem;
        margin-bottom: 0.75rem;
    }
    
    .mission-description,
    .mission-subdescription,
    .mission-block-paragraph-1,
    .mission-block-paragraph-2 {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    
    /* 移动端垂直布局 */
    .mission-content-block {
        flex-direction: column;
        gap: 1rem;
        margin: 1.5rem 0;
    }
    
    .mission-content-block:nth-child(even) {
        flex-direction: column;
    }
    
    .mission-text-content {
        min-width: auto;
    }
    
    .mission-image-container {
        width: 100%;
        max-width: none;
    }
    
    .mission-main-image {
        margin: 1.5rem 0;
    }
}

/* 超小屏幕设备适配 (小于480px) */
@media screen and (max-width: 480px) {
    .mission-main {
        width: 98%;
        padding: 0.5rem 0;
    }
    
    .mission-title {
        font-size: 1.25rem;
    }
    
    .mission-subtitle {
        font-size: 0.95rem;
    }
    
    .mission-block-title {
        font-size: 1rem;
    }
    
    .mission-description,
    .mission-subdescription,
    .mission-block-paragraph-1,
    .mission-block-paragraph-2 {
        font-size: 0.85rem;
        line-height: 1.5;
    }
    
    .mission-content-block {
        margin: 1rem 0;
        gap: 0.75rem;
    }
}