body {
    background-color: #111;
    color: #eee;
    font-family: "Monaco", "Consolas", monospace;
    font-size: 16px;
    margin: 0;
    padding: 0;
    line-height: 1.75;
    overflow-y: scroll;
}

#game-container {
    max-width: 700px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    position: sticky;
    top: 0;
    z-index: 999;
    background-color: #111;
    padding-bottom: 20px;
    border-bottom: 1px solid #333;
    margin-bottom: 20px;
    /* 增加过渡动画，让显示/隐藏更平滑 */
    transition: opacity 1s ease, transform 1s ease;
}

/* === 新增：隐藏 Header 的类 === */
.header.hidden {
    display: none; /* 彻底不显示，不占位 */
    opacity: 0;
}

/* 输入框容器：让按钮和输入框横向排列 */
.input-wrapper {
    display: flex;
    align-items: center;
    width: 60%;
}

/* 返回按钮样式 */
#back-btn {
    background-color: transparent;
    border: 1px solid transparent; /* 默认无边框 */
    color: #68d; /* 蓝色链接风格 */
    font-family: inherit;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    padding: 5px 10px;
    margin-right: 5px;
    transition: all 0.2s;
}

#back-btn:hover {
    color: #8af;
    background-color: #222;
    border: 1px solid #444;
}

/* 输入框样式 */
input[type="text"] {
    background-color: transparent;
    border: 1px solid #444;
    color: #eee;
    padding: 0.4em;
    font-family: inherit;
    font-size: inherit;
    flex-grow: 1; /* 填满剩余空间 */
    outline: none;
}

input[type="text"]:focus {
    border-color: #eee;
    background-color: #222;
}

/* 文本颜色类 */
.names { color: #68d; }
.names_ii { color: #8381DF; }
.names_iii { color: #61A4C2; }
.names_iv { color: #D8D092; }

.recent a, .recent { color: #DB709F; cursor: pointer; text-decoration: underline; }
.act_ii a { color: #8381DF; cursor: pointer; }
.act_iii a { color: #61A4C2; cursor: pointer; }
.act_iv a { color: #D8D092; cursor: pointer; }

.hints { color: Gray; }

.myDiv {
    padding: 10%;
    border: 1px solid white;
    color: WhiteSmoke;
    margin-top: 20px;
    margin-bottom: 20px;
}

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

a {
    color: #68d;
    text-decoration: none;
    cursor: pointer;
}
a:hover {
    text-decoration: underline;
}

/* ... 原有代码 ... */

/* 未读文件链接 (保持原来的亮粉色，表示新鲜/重要) */
.recent a, .recent { 
    color: #DB709F; 
    cursor: pointer; 
    text-decoration: underline; 
}

/* 新增：已读文件链接 (使用灰蓝色或暗色，表示已探索) */
.read-link {
    color: #6c7a89; /* 灰蓝色，比背景亮，但比高亮暗 */
    cursor: pointer;
    text-decoration: none;
    transition: color 0.2s;
}

.read-link:hover {
    color: #8af; /* 鼠标悬停变亮 */
    text-decoration: underline;
}


/* ...原有代码... */

/* 提示信息块样式 */
.system-message {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px dashed #444; /* 虚线分割 */
}

/* 成功提示颜色 */
.msg-success { color: #DB709F; } 
/* 错误提示颜色 */
.msg-error { color: Gray; }

/* ... 原有代码 ... */

/* === 新增：报纸风格样式 === */
.newspaper-container {
    border: 2px solid #eee;
    padding: 20px;
    margin-bottom: 30px;
    background-color: #1a1a1a; /* 稍微区别于背景 */
}

.newspaper-header {
    text-align: center;
    border-bottom: 2px double #eee;
    padding-bottom: 15px;
    margin-bottom: 15px;
}

.newspaper-title {
    font-size: 2em;
    font-weight: bold;
    letter-spacing: 5px;
    margin: 0;
    color: #eee;
}

.newspaper-eng-title {
    font-size: 0.8em;
    letter-spacing: 2px;
    margin-bottom: 5px;
}

.newspaper-date {
    font-size: 0.9em;
    text-align: right;
    border-bottom: 1px solid #444;
    padding-bottom: 5px;
    margin-bottom: 15px;
}

.headline-main {
    font-size: 1.4em;
    font-weight: bold;
    margin: 10px 0;
    color: #DB709F; /* 使用游戏的高亮色 */
}

.headline-sub {
    font-size: 1.1em;
    font-weight: bold;
    margin-bottom: 15px;
}

.news-section {
    margin-bottom: 15px;
    text-indent: 2em; /* 首行缩进 */
    text-align: justify;
}

.news-bold {
    font-weight: bold;
    color: #ddd;
}

/* 开始游戏链接样式 */
.start-game-btn {
    display: block;
    text-align: center;
    margin-top: 40px;
    padding: 15px;
    border: 1px dashed #68d;
    color: #68d;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

.start-game-btn:hover {
    background-color: #68d;
    color: #111;
}

/* 系统启动加载行样式 */
.boot-line {
    margin: 5px 0;
    color: #6c7a89;
}
.boot-success { color: #4a4; } /* 绿色 */
.boot-warning { color: #db709f; } /* 粉色 */

/* ... 原有代码 ... */

/* === 新增：文件类型颜色区分 === */

/* 1. List (录音) - 淡蔷薇色 */
.recent a, .recent { color: #ebbcba; text-decoration: underline; cursor: pointer; }
.recent.read { color: #6e5958; text-decoration: none; } /* 已读变暗 */

/* 2. Inbox (通讯) - 淡琥珀色 */
.type-inbox { color: #f6c177; text-decoration: underline; cursor: pointer; }
.type-inbox.read { color: #755b38; text-decoration: none; }

/* 3. Police (档案) - 淡泡沫色 */
.type-police { color: #9ccfd8; text-decoration: underline; cursor: pointer; }
.type-police.read { color: #435b5e; text-decoration: none; }

/* 4. Evidence (证物) - 淡薰衣草色 */
.type-evidence { color: #c4a7e7; text-decoration: underline; cursor: pointer; }
.type-evidence.read { color: #574a66; text-decoration: none; }

/* 列表容器边框过渡 */
.list-container {
    margin-top: 10px;
    border-left: 3px solid; /* 颜色由 JS 动态控制 */
    padding-left: 15px;
    background: linear-gradient(90deg, rgba(255,255,255,0.02) 0%, rgba(0,0,0,0) 100%); /* 淡淡的背景渐变 */
}

.list-header {
    margin-bottom: 10px;
    font-weight: bold;
    border-bottom: 1px dashed #444;
    padding-bottom: 5px;
    letter-spacing: 1px;
}