/* index.css */
@import url('https://fonts.googleapis.com/css2?family=Pacifico&family=Noto+Sans+SC:wght@300;500;700&display=swap');

body {
    margin: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    font-family: 'Noto Sans SC', sans-serif;
    min-height: 100vh;
}

.container {
    height: 100vh;
    display: flex;
    position: relative;
    box-shadow: 0 0 30px rgba(0,0,0,0.1);
    max-width: 1600px;
    margin: 0 auto;
    align-items: flex-start;
}

/* 修改分割线样式 */
.container::after { 
    content: '';
    position: fixed;  /*####### 改为固定定位*/
    left: 40%;
    top: 0;           /*####### 从顶部开始*/
    height: 100vh;    /*####### 全屏高度 */
    width: 3px;
    background: linear-gradient(to bottom, 
        rgba(100,200,255,0.5) 0%,
        #00b894 50%,       /*####### 统一为左侧边框颜色*/   
        rgba(100,200,255,0.5) 100%);
    border-radius: 2px;
    z-index: 1;        /*####### 确保在背景上方*/
}

/* 统一背景 */
.left, .right {
    padding: 80px 40px 40px;
    overflow-y: auto;
    height: 100vh;
    box-sizing: border-box;
    background: rgba(255,255,255,0.95) !important;  /*####### 统一白色背景*/
}

.left {
    flex: 2;
    width: 40%;
}

/* 新增滚动条样式 */
.left::-webkit-scrollbar {  /*#######*/
    width: 6px;  /* 滚动条宽度 */
}

.left::-webkit-scrollbar-track {  /*#######*/
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
}

.right {
    flex: 3;
    width: 60%;
    display: flex;
    flex-direction: column;
}

/* 标题居中样式 */
.right h1 {
    font-size: 2.5rem;
    margin: 0 auto 3rem;  /*####### 水平居中*/ 
    background: linear-gradient(135deg, #6c5ce7, #00b894);
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    font-family: 'Pacifico', cursive;
    width: fit-content;    /*####### 自适应宽度*/
    text-align: center;   /*####### 文字居中*/
}

.title {
    font-size: 2.2rem;
    color: #2d3436;
    font-weight: 700;
    line-height: 1.4;
    margin: 0 0 2rem;
    padding-bottom: 1.2rem;
    border-bottom: 3px solid #00b894;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.text {
    font-size: 1.15rem;
    line-height: 1.9;
    color: #4a4a4a;
    text-align: justify;
    hyphens: auto;
    padding-right: 15px;
}

img {
    width: 100%;
    max-width: 80%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    margin: 0 auto 3rem;
    display: block;
}

img:hover {
    transform: translateY(-5px);
}

/* 按钮容器新样式 */
.button-container {
    position: sticky;
    bottom: 40px;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    padding: 15px 0;
    background: linear-gradient(to top, 
        rgba(248,249,250,0.95) 60%,
        rgba(248,249,250,0.5) 100%);
}

button {
    padding: 12px 30px;
    font-size: 1.1rem;
    border: none;
    border-radius: 30px;
    background: linear-gradient(135deg, #6c5ce7 0%, #00b894 100%);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(108,92,231,0.3);
}

/* 新增页节信息样式 */
.page-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    background: rgba(108,92,231,0.1);
    border-radius: 30px;
    margin: 0 1rem;
}

.page-info {
    font-size: 1rem;
    color: #6c5ce7;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(108,92,231,0.2);
    white-space: nowrap;
}

.page-alert {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(108,92,231,0.9);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    white-space: nowrap;
    pointer-events: none;
}

.page-alert.show {
    opacity: 1;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        flex-direction: column;
        height: auto;
        align-items: stretch;
    }
    
    .left, .right {
        width: 100% !important;
        height: auto;
        padding: 60px 30px 30px !important;
    }
    
    .container::after {
        display: none;
    }
    
    .button-container {
        position: static;
        background: transparent;
    }

    .right h1 {
        margin-bottom: 2rem;
    }
}

@media (max-width: 768px) {
    .title {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
    }
    
    .right h1 {
        font-size: 2rem !important;
        margin-bottom: 2rem;
    }
    
    img {
        max-width: 100%;
        margin-bottom: 2rem;
    }

    .left, .right {
        padding: 40px 20px 20px !important;
    }

    /* 移动端页节信息适配 */
    .page-wrapper {
        padding: 0 1rem;
        margin: 0 0.5rem;
    }
    
    .page-info {
        font-size: 0.9rem;
    }
    
    button {
        padding: 10px 20px;
        font-size: 1rem;
    }
    
    .page-alert {
        bottom: 110%;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .button-container {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .page-wrapper {
        order: -1;
        width: 100%;
        justify-content: center;
        margin: 0;
        background: none;
    }
}

/* Firefox滚动条兼容 */
@supports (-moz-appearance:none) {
    .left {
        scrollbar-width: thin;
        scrollbar-color: #00b894 rgba(255,255,255,0.1);
    }
}