body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
    scrollbar-width: none; /* Firefox 隐藏滚动条 */
    -ms-overflow-style: none; /* IE 和 Edge 隐藏滚动条 */
}

body::-webkit-scrollbar {
    display: none; /* Chrome, Safari 和 Opera 隐藏滚动条 */
}

/* 全局文本选中样式 */
::selection {
    background-color: rgba(243, 216, 13, 0.58); /* R243 G216 B13 A0.58 */
    color: white;
}

::-moz-selection {
    background-color: rgba(243, 216, 13, 0.58); /* Firefox */
    color: white;
}

/* 图片无法选中 */
img {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.container {
    background-image: url('/css/all/bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed; /* 背景固定 */
    min-height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 0;
    box-sizing: border-box;
}

.container::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.sidebar, .center-section {
    position: relative;
    z-index: 2;
}

/* 目录区域样式 */
.sidebar {
    width: 300px;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.8);
    transition: all 0.5s ease;
    overflow: hidden;
    flex-shrink: 0;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.sidebar.collapsed {
    width: 0;
    opacity: 0;
    transform: translateX(-100%);
}

.divider.hidden {
    width: 0;
    opacity: 0;
    transform: translateX(-100%);
}

.sidebar.collapsed ~ .center-section {
    margin-left: 0;
    width: 100%;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.sidebar-header h3 {
    margin: 0;
    color: white;
    font-size: 18px;
    font-weight: 600;
}

.toggle-sidebar {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.toggle-sidebar:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.toggle-sidebar img {
    width: 20px;
    height: 20px;
    filter: invert(1);
    transform: rotate(180deg);
}

.toggle-sidebar.collapsed {
    position: fixed;
    left: 10px;
    top: 200px;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease 0.5s;
}

.toggle-sidebar.collapsed img {
    transform: rotate(0deg);
}

.sidebar-content {
    padding: 20px;
    height: calc(100vh - 80px);
    overflow-y: auto;
    scrollbar-width: thin; /* Firefox */
    scrollbar-color: rgba(255, 255, 255, 0.3) rgba(0, 0, 0, 0.1); /* Firefox */
}

.sidebar-content::-webkit-scrollbar {
    width: 8px;
}

.sidebar-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

.sidebar-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

.sidebar-content::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* 目录标签页样式 */
.directory-tabs {
    position: relative;
    margin-bottom: 15px;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 15px;
}

.directory-tabs-container {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
    padding: 5px 0;
    flex: 1;
}

.directory-tabs-container::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
}

.directory-tab {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.directory-tab:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.directory-tab.active {
    background-color: rgba(255, 255, 255, 0.3);
    font-weight: bold;
}

.directory-tabs-nav {
    width: 24px;
    height: 24px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    flex-shrink: 0;
}

.directory-tabs-nav:hover {
    background-color: rgba(0, 0, 0, 0.9);
}

.directory-tabs-nav-prev {
    order: 1;
}

.directory-tabs-container {
    order: 2;
}

.directory-tabs-nav-next {
    order: 3;
}
/* 文章列表样式 */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 0 15px 60px 15px; /* 底部添加60px空白空间 */
}

.article-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
}

.article-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
}

.article-item.active {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    font-weight: 500;
}

.article-icon {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
}

.article-info-sidebar {
    flex: 1;
    min-width: 0;
}

.article-title-sidebar {
    font-size: 14px;
    font-weight: 500;
    margin: 0 0 4px 0;
    line-height: 1.3;
    word-wrap: break-word;
    overflow-wrap: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-desc-sidebar {
    font-size: 12px;
    margin: 0;
    opacity: 0.8;
    line-height: 1.2;
    word-wrap: break-word;
    overflow-wrap: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 分隔线样式 */
.divider {
    width: 1px;
    height: 100vh;
    background-color: rgba(255, 255, 255, 0.2);
    transition: all 0.5s ease;
    flex-shrink: 0;
    position: fixed;
    left: 300px;
    top: 0;
    z-index: 100;
}

.divider.hidden {
    width: 0;
    opacity: 0;
}

.left-section, .center-section {
    position: relative;
    z-index: 2;
}

.left-section {
    position: fixed;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.7);
    padding: 20px;
    border-radius: 10px;
    color: white;
    text-align: center;
}

.reader-count {
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #000;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: rgba(255, 255, 255, 0.5);
}

.center-section {
    background-color: rgba(0, 0, 0, 0.7);
    padding: 30px;
    border-radius: 0;
    color: white;
    flex: 1;
    min-height: 100vh;
    overflow-y: auto;
    box-sizing: border-box;
    transition: all 0.5s ease;
    margin-left: 300px;
    width: calc(100% - 300px);
}

.article-header {
    position: relative;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 40px;
}

.back-button {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 8px 16px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s ease;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.back-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.time-display {
    color: #999;
    font-size: 12px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    opacity: 0.8;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* 文章信息区域 */
.article-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    margin: 0;
    flex-wrap: wrap;
    gap: 20px;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #ccc;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.info-label {
    font-weight: 500;
    color: #999;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.info-value {
    color: #e0e0e0;
    font-weight: 400;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* 竖屏响应式设计 */
@media (max-width: 768px) {
    .container {
        align-items: stretch;
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        position: fixed;
        top: 0;
        left: 0;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.5s ease;
        height: 100vh;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .divider {
        display: none;
    }
    
    .toggle-sidebar.collapsed {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .center-section {
        padding: 20px 15px;
        min-height: 100vh;
        width: 100%;
        margin-left: 0 !important;
    }
    
    .article-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .info-item {
        width: 100%;
        justify-content: space-between;
    }
    
    /* 小屏设备评论表单优化 */
    .comment-form-footer {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-end;
        gap: 10px;
    }
    
    .user-avatar-container {
        order: 1;
        justify-content: flex-start;
        flex-shrink: 0;
    }
    
    .comment-submit-btn {
        order: 2;
        width: auto;
        padding: 8px 16px;
        font-size: 14px;
        border-radius: 15px;
    }
}

/* 确保其他标题不会有分割线 */
.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 10px;
}

.article-content {
    line-height: 1.8;
    font-size: 16px;
}

/* AI总结区域样式 - 与评论内容(comment-item)一致 */
.ai-summary-section {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 20px;
    margin-top: 30px;
    margin-bottom: 15px;
    border-left: 4px solid #4da6ff;
    color: white;
}

.ai-summary-header {
    margin-bottom: 10px;
    font-size: 14px;
}

.ai-summary-title {
    margin: 0;
    font-size: 15px;
    font-weight: bold;
    color: #4da6ff;
}

.ai-summary-content-wrapper {
    position: relative;
}

.ai-summary-content {
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    word-wrap: break-word;
    white-space: pre-wrap;
    transition: max-height 0.3s ease;
    overflow: hidden;
}

.ai-summary-content br {
    content: '';
    display: block;
    margin-bottom: 0.5em;
}

.ai-summary-expand-btn {
    display: none;
    align-items: center;
    justify-content: flex-start;
    margin-top: 8px;
    color: #4da6ff;
    cursor: pointer;
    font-size: 14px;
}

.ai-summary-expand-btn:hover {
    color: #7ec0ff;
}

.article-content h1 {
    font-size: 24px;
    margin-top: 30px;
    margin-bottom: 15px;
}

/* 评论区样式 */
.comment-section {
    margin-top: 40px;
    padding: 30px;
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: 10px;
    color: white;
}

.comment-title {
    margin: 0 0 20px 0;
    font-size: 22px;
    color: #FFD700;
    border-bottom: 2px solid rgba(255, 215, 0, 0.3);
    padding-bottom: 10px;
}

.comment-input-area {
    margin-bottom: 40px;
    padding-bottom: 20px;
    position: relative;
}

/* 评论表单底部区域 */
.comment-form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
}

.user-avatar-container {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
    user-select: none;
}

.user-avatar-container:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 215, 0, 0.5);
}

.user-name {
    color: #FFD700;
    font-weight: bold;
    font-size: 14px;
}

/* 退出登录确认对话框样式 */
.logout-confirm-modal {
    display: none;
    position: fixed;
    z-index: 10001; /* 高于登录模态框 */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.logout-confirm-content {
    background-color: rgba(0, 0, 0, 0.95);
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 350px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
}

.logout-confirm-header {
    padding: 20px 25px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.logout-confirm-header h3 {
    margin: 0;
    color: #FFD700;
    font-size: 18px;
    text-align: center;
}

.logout-confirm-body {
    padding: 25px;
}

.logout-confirm-body p {
    margin: 0 0 20px 0;
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    font-size: 15px;
}

.logout-confirm-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.logout-confirm-btn {
    padding: 10px 25px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 80px;
}

.logout-confirm-yes {
    background: linear-gradient(45deg, #FF6B6B, #FF8E8E);
    color: white;
}

.logout-confirm-yes:hover {
    background: linear-gradient(45deg, #FF5252, #FF7B7B);
    transform: translateY(-1px);
}

.logout-confirm-no {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.logout-confirm-no:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

.comment-input {
    width: 100%;
    min-height: 100px;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: white;
    font-size: 14px;
    font-family: Arial, sans-serif;
    resize: vertical;
    box-sizing: border-box;
    scrollbar-width: thin; /* Firefox */
    scrollbar-color: rgba(255, 255, 255, 0.3) rgba(0, 0, 0, 0.1); /* Firefox */
}

.comment-input::-webkit-scrollbar {
    width: 8px;
}

.comment-input::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.comment-input::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

.comment-input::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

.comment-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.comment-input:focus {
    outline: none;
    border-color: #FFD700;
    background-color: rgba(255, 255, 255, 0.15);
}

.comment-submit-btn {
    padding: 8px 20px;
    background: linear-gradient(45deg, #FFD700, #FFA500);
    color: #000;
    border: none;
    border-radius: 15px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(255, 215, 0, 0.3);
}

.comment-submit-btn:hover {
    background: linear-gradient(45deg, #FFA500, #FF8C00);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.4);
}

.comment-submit-btn:active {
    transform: translateY(0);
}

.comment-list {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 20px;
    clear: both; /* 清除浮动 */
    max-height: 400px;
    overflow-y: auto;
    scrollbar-width: thin; /* Firefox */
    scrollbar-color: rgba(255, 255, 255, 0.3) rgba(0, 0, 0, 0.1); /* Firefox */
}

.comment-list::-webkit-scrollbar {
    width: 8px;
}

.comment-list::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.comment-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

.comment-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

.comment-item {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid #FFD700;
    position: relative;
}

.comment-anonymous-tag {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.comment-header {
    display: flex;
    align-items: flex-start;
    margin-bottom: 10px;
    font-size: 14px;
    gap: 12px;
}

.comment-avatar {
    flex-shrink: 0;
}

.comment-avatar img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 215, 0, 0.3);
    transition: opacity 0.3s ease;
}

/* 头像加载状态 */
.comment-avatar.loading {
    position: relative;
}

.comment-avatar.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top: 2px solid #FFD700;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.comment-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.comment-author {
    font-weight: bold;
    color: #FFD700;
    font-size: 15px;
}

.comment-time {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
}

.comment-content-wrapper {
    position: relative;
}

.comment-content {
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    word-wrap: break-word;
    white-space: pre-wrap; /* 保留换行和空格 */
    transition: max-height 0.3s ease;
    overflow: hidden;
}

.comment-content br {
    content: '';
    display: block;
    margin-bottom: 0.5em;
}

.comment-expand-btn {
    display: none;
    align-items: center;
    justify-content: flex-start;
    margin-top: 8px;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    color: #FFD700;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: fit-content;
}

.comment-expand-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

.expand-text::before {
    content: '▶';
    margin-right: 4px;
    font-size: 10px;
    transition: transform 0.3s ease;
}

.collapse-text::before {
    content: '▼';
    margin-right: 4px;
    font-size: 10px;
    transition: transform 0.3s ease;
}

/* 小屏设备优化 */
@media (max-width: 768px) {
    .comment-expand-btn {
        font-size: 14px;
        padding: 6px 12px;
    }
    
    .expand-text::before,
    .collapse-text::before {
        font-size: 12px;
    }
}

/* 未登录提示样式 */
.comment-login-prompt {
    text-align: center;
    padding: 30px 20px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 30px;
}

.comment-login-prompt p {
    margin: 0;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
}

.login-link {
    color: #FFD700;
    cursor: pointer;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.login-link:hover {
    color: #FFA500;
}

.register-link {
    color: #FFD700;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.register-link:hover {
    color: #FFA500;
}

/* 登录模态框动画 */
@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalContentSlideIn {
    from {
        transform: scale(0.9) translateY(-20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

@keyframes modalContentSlideOut {
    from {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
    to {
        transform: scale(0.9) translateY(-20px);
        opacity: 0;
    }
}

/* 登录模态框样式 - 参考安全提示样式 */
.login-modal {
    display: none;
    position: fixed;
    z-index: 10000; /* 高于安全提示的9999，确保显示在最顶层 */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.login-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.login-modal.hiding {
    opacity: 0;
}

.login-modal-content {
    background-color: rgba(0, 0, 0, 0.95);
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 420px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transform: scale(0.9) translateY(-20px);
    opacity: 0;
    transition: all 0.4s ease;
    position: relative;
    z-index: 10001; /* 确保内容在背景之上 */
}

.login-modal.show .login-modal-content {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.login-modal.hiding .login-modal-content {
    transform: scale(0.9) translateY(-20px);
    opacity: 0;
}

.login-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.login-modal-header h3 {
    margin: 0;
    color: #FFD700;
    font-size: 20px;
}

.login-modal-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.login-modal-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.login-modal-body {
    padding: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"] {
    width: 100%;
    padding: 12px;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    color: white;
    font-size: 14px;
    box-sizing: border-box;
}

.form-group textarea {
    width: 100%;
    padding: 12px;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    color: white;
    font-size: 14px;
    box-sizing: border-box;
    resize: vertical;
    min-height: 60px;
    font-family: inherit;
}

.form-group textarea:focus,
.form-group input:focus {
    outline: none;
    border-color: #FFD700;
    background-color: rgba(255, 255, 255, 0.15);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #FFD700;
}

.checkbox-group label {
    margin: 0;
    font-size: 14px;
}

.checkbox-group a {
    color: #FFD700;
    text-decoration: underline;
}

.checkbox-group a:hover {
    color: #FFA500;
}

.login-submit-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(45deg, #FFD700, #FFA500);
    color: #000;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-submit-btn:hover {
    background: linear-gradient(45deg, #FFA500, #FF8C00);
    transform: translateY(-1px);
}

.login-submit-btn:disabled {
    background: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.6);
    cursor: not-allowed;
    transform: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .comment-section {
        padding: 20px 15px;
        margin-top: 30px;
    }
    
    .comment-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .comment-submit-btn {
        width: 100%;
        float: none;
    }
    
    .login-modal-content {
        margin: 20% auto;
        width: 95%;
    }
    
    .login-modal-body {
        padding: 15px;
    }
}

.article-content h2 {
    font-size: 20px;
    margin-top: 25px;
    margin-bottom: 12px;
    color: #fff;
}

.article-content h3 {
    font-size: 18px;
    margin-top: 20px;
    margin-bottom: 10px;
    color: #fff;
}

.article-content p {
    margin-bottom: 16px;
    color: #e0e0e0;
}

.article-content a {
    color: #3cb0df; /* 浅蓝色 */
    text-decoration: underline;
    transition: color 0.3s ease;
}

.article-content a:hover {
    color: #00e1ff; /* 更亮的浅蓝色 */
    text-decoration: underline;
}

.article-content ul, .article-content ol {
    margin-bottom: 16px;
    padding-left: 20px;
}

.article-content li {
    margin-bottom: 8px;
    color: #e0e0e0;
}

.article-content blockquote {
    border-left: 4px solid rgba(255, 255, 255, 0.3);
    margin: 20px 0;
    padding-left: 20px;
    color: #ccc;
    font-style: italic;
}

.error {
    color: #ff6b6b;
    text-align: center;
    padding: 40px 20px;
    font-style: italic;
}

/* 添加滚动条样式 */
.center-section::-webkit-scrollbar {
    width: 10px;
}

.center-section::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

.center-section::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 5px;
}

.center-section::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* 代码块容器样式 */
.code-block {
    background-color: #1e1e1e;  /* 深色背景 */
    border: 1px solid #333;  /* 深色边框 */
    border-radius: 8px;
    margin: 20px 0;
    overflow: hidden;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
}

/* 代码块标题栏 */
.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background-color: #252526;
    border-bottom: 1px solid #333;
    min-height: 36px;
}

.code-language {
    color: #ccc;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* 复制按钮样式 */
.copy-button {
    padding: 4px 12px;
    background-color: #333;
    color: #fff;
    border: 1px solid #555;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-family: inherit;
    transition: all 0.3s ease;
    opacity: 0.8;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.copy-button:hover {
    background-color: #444;
    border-color: #666;
    opacity: 1;
    transform: translateY(-1px);
}

.copy-button:active {
    transform: translateY(0);
}

/* 复制成功状态 */
.copy-button.copied {
    background-color: #4CAF50;
    border-color: #4CAF50;
}

.copy-button.error {
    background-color: #f44336;
    border-color: #f44336;
}

/* 代码内容区域 */
.code-content {
    padding: 16px;
    overflow-x: auto;
    line-height: 1.5;
}

pre {
    margin: 0;
    padding: 0;
    background: none;
    border: none;
    border-radius: 0;
}

code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
}

pre code {
    display: block;
    background: none;
    padding: 0;
    color: #d4d4d4;
    border-radius: 0;
}

/* 语法高亮颜色 */
.highlight .keyword { color: #569cd6; }  /* 蓝色 - 关键字 */
.highlight .string { color: #ce9178; }   /* 橙色 - 字符串 */
.highlight .comment { color: #6a9955; }  /* 绿色 - 注释 */
.highlight .function { color: #dcdcaa; } /* 黄色 - 函数名 */
.highlight .number { color: #b5cea8; }   /* 浅绿色 - 数字 */
.highlight .operator { color: #d4d4d4; } /* 白色 - 操作符 */

/* 不同语言的代码块样式 */
.code-block.language-python { border-left: 4px solid #3572A5; }
.code-block.language-javascript { border-left: 4px solid #f1e05a; }
.code-block.language-html { border-left: 4px solid #e34c26; }
.code-block.language-css { border-left: 4px solid #563d7c; }
.code-block.language-cpp { border-left: 4px solid #f34b7d; }
.code-block.language-java { border-left: 4px solid #b07219; }
.code-block.language-typescript { border-left: 4px solid #2b7489; }
.code-block.language-go { border-left: 4px solid #00ADD8; }
.code-block.language-rust { border-left: 4px solid #dea584; }
.code-block.language-php { border-left: 4px solid #4F5D95; }
.code-block.language-ruby { border-left: 4px solid #701516; }
.code-block.language-swift { border-left: 4px solid #ffac45; }
.code-block.language-kotlin { border-left: 4px solid #F18E33; }
.code-block.language-csharp { border-left: 4px solid #178600; }
.code-block.language-c { border-left: 4px solid #555555; }
.code-block.language-bash { border-left: 4px solid #89e051; }
.code-block.language-shell { border-left: 4px solid #89e051; }
.code-block.language-sql { border-left: 4px solid #e38c00; }
.code-block.language-json { border-left: 4px solid #292929; }
.code-block.language-xml { border-left: 4px solid #0060ac; }
.code-block.language-markdown { border-left: 4px solid #083fa1; }
.code-block.language-yaml { border-left: 4px solid #cb171e; }
.code-block.language-dockerfile { border-left: 4px solid #384d54; }
.code-block.language-lua { border-left: 4px solid #000080; }
.code-block.language-perl { border-left: 4px solid #0298c3; }
.code-block.language-r { border-left: 4px solid #198CE7; }
.code-block.language-matlab { border-left: 4px solid #e16737; }
.code-block.language-scala { border-left: 4px solid #c22d40; }
.code-block.language-haskell { border-left: 4px solid #5e5086; }
.code-block.language-elixir { border-left: 4px solid #6e4a7e; }
.code-block.language-clojure { border-left: 4px solid #db5855; }
.code-block.language-erlang { border-left: 4px solid #B83998; }
.code-block.language-groovy { border-left: 4px solid #e69f56; }
.code-block.language-dart { border-left: 4px solid #00B4AB; }
.code-block.language-julia { border-left: 4px solid #a270ba; }
.code-block.language-nim { border-left: 4px solid #37775b; }
.code-block.language-crystal { border-left: 4px solid #000100; }
.code-block.language-ocaml { border-left: 4px solid #3be133; }
.code-block.language-pascal { border-left: 4px solid #E3F171; }
.code-block.language-prolog { border-left: 4px solid #74283c; }
.code-block.language-scheme { border-left: 4px solid #1e4aec; }
.code-block.language-racket { border-left: 4px solid #3c5caa; }
.code-block.language-common-lisp { border-left: 4px solid #3fb68b; }
.code-block.language-coffeescript { border-left: 4px solid #244776; }
.code-block.language-livescript { border-left: 4px solid #499886; }
.code-block.language-elm { border-left: 4px solid #60B5CC; }
.code-block.language-purescript { border-left: 4px solid #1D222D; }
.code-block.language-reason { border-left: 4px solid #ff5847; }
.code-block.language-vue { border-left: 4px solid #2c3e50; }
.code-block.language-angular { border-left: 4px solid #dd0031; }
.code-block.language-react { border-left: 4px solid #61dafb; }
.code-block.language-svelte { border-left: 4px solid #ff3e00; }
.code-block.language-solidity { border-left: 4px solid #AA6746; }
.code-block.language-vhdl { border-left: 4px solid #adb2cb; }
.code-block.language-verilog { border-left: 4px solid #b2b7f8; }
.code-block.language-systemverilog { border-left: 4px solid #DAE1C2; }
.code-block.language-text { border-left: 4px solid #666; }

/* Markdown文本格式样式 */
/* 下划线 */
u {
    text-decoration: underline;
    text-decoration-color: rgba(255, 255, 255, 0.6);
}

/* 删除线 */
del, strike {
    text-decoration: line-through;
    text-decoration-color: rgba(255, 0, 0, 0.6);
    color: rgba(255, 255, 255, 0.6);
}

/* 高亮 */
mark {
    background-color: #ffeb3b;
    color: #000;
    padding: 0 2px;
    border-radius: 2px;
}

/* 表格样式 */
table {
    border-collapse: collapse;
    width: 100%;
    margin: 15px 0;
    background-color: rgba(255, 255, 255, 0.05);
}

th, td {
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 8px 12px;
    text-align: left;
}

th {
    background-color: rgba(255, 255, 255, 0.1);
    font-weight: bold;
}

/* 脚注样式 */
.footnote {
    font-size: 0.9em;
    color: rgba(255, 255, 255, 0.7);
}

/* 警告框样式 */
.admonition {
    background-color: rgba(255, 255, 255, 0.1);
    border-left: 4px solid #ff9800;
    padding: 10px 15px;
    margin: 15px 0;
    border-radius: 0 4px 4px 0;
}

.admonition-title {
    font-weight: bold;
    margin-bottom: 5px;
    color: #ff9800;
}

/* 下载附件样式 */
.download-attachment {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.attachment-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.filename {
    color: white;
    font-weight: 500;
    font-size: 16px;
    flex: 1;
    word-break: break-all;
}

.download-button {
    padding: 8px 16px;
    background-color: #333;
    color: #fff;
    border: 1px solid #555;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s ease;
    opacity: 0.8;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.download-button:hover {
    background-color: #444;
    border-color: #666;
    opacity: 1;
    transform: translateY(-1px);
}

.download-button:active {
    transform: translateY(0);
}

/* 匿名评论链接样式 - 与登录/注册链接一致 */
.anonymous-comment-link {
    color: #FFD700;
    cursor: pointer;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.anonymous-comment-link:hover {
    color: #FFA500;
}

/* 匿名评论表单提示 */
.form-hint {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}