/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}
body {
    background-color: #f8f9fa;
    color: #202124;
    line-height: 1.5;
    min-height: 100vh;
    overflow: hidden; /* 新增：防止页面整体滚动 */
    /* 移除：居中布局，改为面板内部居中 */
    /* display: flex; justify-content: center; align-items: center; */
}
/* 面板通用样式 - 全屏核心修改 */
.panel {
    width: 100vw; /* 新增：占满视口宽度 */
    height: 100vh; /* 新增：占满视口高度 */
    background: white;
    border-radius: 0; /* 修改：移除圆角，全屏无冗余 */
    box-shadow: none; /* 修改：移除阴影，全屏不需要 */
    padding: 2rem;
    display: none;
    position: absolute; /* 新增：固定面板，防止偏移 */
    top: 0;
    left: 0;
}
/* 登录面板居中 - 新增flex布局 */
.panel.active {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
/* 登录面板 - 优化表单宽度，保证美观 */
#login-panel h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
}
.form-group {
    width: 100%;
    max-width: 400px; /* 新增：表单最大宽度，防止过宽 */
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}
.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}
.form-group input:focus {
    outline: none;
    border-color: #206bc4;
    box-shadow: 0 0 0 2px rgba(32, 107, 196, 0.1);
}
#connect-btn {
    width: 100%;
    max-width: 400px; /* 新增：按钮和表单同宽 */
    padding: 0.8rem;
    background-color: #206bc4;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
#connect-btn:hover {
    background-color: #1957a3;
}
.error {
    width: 100%;
    max-width: 400px; /* 新增：错误提示和表单同宽 */
    margin-top: 1rem;
    color: #d93025;
    text-align: center;
    display: none;
}
.error.show {
    display: block;
}
/* 聊天面板 - 全屏修改 */
#chat-panel {
    display: none;
    flex-direction: column;
    height: 100vh; /* 修改：占满视口高度 */
    padding: 0;
}
.status-bar {
    padding: 1rem;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0; /* 新增：防止状态栏被压缩 */
}
#channel-display {
    font-weight: 500;
    font-size: 1.1rem;
}
.connection-status {
    font-size: 0.9rem;
    padding: 0.3rem 0.6rem;
    border-radius: 12px;
}
.connected {
    background-color: #e6f4ea;
    color: #188038;
}
.disconnected {
    background-color: #fef0f0;
    color: #d93025;
}
.messages {
    flex: 1; /* 占满剩余高度 */
    padding: 1rem;
    overflow-y: auto;
    background-color: #f9f9f9;
    overflow-x: hidden; /* 新增：防止横向滚动 */
}
/* 消息样式（原版风格）- 移除nick固定颜色，支持动态颜色 + 新增tripcode样式 */
.message {
    margin-bottom: 1rem;
    padding: 0.5rem;
    border-radius: 4px;
    animation: fadeIn 0.2s ease-in-out;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}
.message .nick {
    font-weight: 600;
    margin-right: 0.5rem;
    /* 移除：固定颜色，改为JS动态设置 */
    /* color: #206bc4; */
}
/* 新增：tripcode 样式（灰色小号字体，和官方一致） */
.message .tripcode {
    font-size: 0.7rem;
    color: #70757a;
    margin-left: 0.3rem;
    font-weight: normal;
}
.message .time {
    font-size: 0.8rem;
    color: #70757a;
    margin-right: 0.5rem;
}
.message .content {
    white-space: pre-wrap;
    word-wrap: break-word;
}
/* 新增：/me指令的斜体样式，和官方原版一致 */
.message .me {
    font-style: italic;
    color: #202124;
}
/* 输入区域 - 新增防压缩 */
.input-area {
    display: flex;
    padding: 1rem;
    border-top: 1px solid #eee;
    flex-shrink: 0; /* 新增：防止输入框被压缩 */
}
#message-input {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
    resize: none;
    height: 60px;
    transition: border-color 0.2s ease;
}
#message-input:focus {
    outline: none;
    border-color: #206bc4;
}
#send-btn {
    padding: 0.8rem 1.5rem;
    background-color: #206bc4;
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
#send-btn:hover {
    background-color: #1957a3;
}
#send-btn:disabled {
    background-color: #9aa0a6;
    cursor: not-allowed;
}
/* 响应式适配 - 优化移动端全屏 */
@media (max-width: 600px) {
    .panel {
        padding: 1rem; /* 减少移动端内边距 */
    }
    .form-group, #connect-btn, .error {
        max-width: 100%; /* 移动端表单占满宽度 */
    }
    #chat-panel {
        height: 100vh;
    }
    #message-input {
        height: 50px; /* 移动端缩短输入框高度 */
    }
}
/* 新增：优化滚动条，更贴合原版风格 */
.messages::-webkit-scrollbar {
    width: 8px;
}
.messages::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}
.messages::-webkit-scrollbar-thumb {
    background: #ddd;
    border-radius: 4px;
}
.messages::-webkit-scrollbar-thumb:hover {
    background: #ccc;
}
/* 新增：验证/验证码输入框样式 */
#verify-container {
    padding: 1rem;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}
#verify-input {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    margin-right: 0.5rem;
    transition: border-color 0.2s ease;
}
#verify-input:focus {
    outline: none;
    border-color: #206bc4;
    box-shadow: 0 0 0 2px rgba(32, 107, 196, 0.1);
}
#verify-btn {
    padding: 0.8rem 1.5rem;
    background-color: #206bc4;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
#verify-btn:hover {
    background-color: #1957a3;
}