/* 硬盘空间 - 白色+浅灰渐变主题 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "宋体", "SimSun", Arial, sans-serif;
    font-size: 12px;
    background: linear-gradient(180deg, #ffffff 0%, #f5f5f5 50%, #e8e8e8 100%);
    min-height: 100vh;
}
/* 顶部标题栏 */
.header {
    background: linear-gradient(to right, #4a90d9, #5ba0e8, #6bb0f0);
    color: #fff;
    padding: 20px 25px;
    font-size: 22px;
    font-weight: bold;
    font-family: "微软雅黑", "Microsoft YaHei", Arial, sans-serif;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.15);
    text-align: left;
}

.header .subtitle {
    font-size: 22px;
    font-weight: bold;
}

/* 状态栏 */
.status-bar {
    background: linear-gradient(to right, #fff, #f9fafb, #f3f4f6);
    border-bottom: 1px solid #d1d5db;
    padding: 5px 15px;
    text-align: right;
    color: #374151;
    font-size: 12px;
}

/* 主容器 */
.main-wrapper {
    display: flex;
    min-height: calc(100vh - 90px);
    padding: 8px;
}

/* 左侧边栏 */
.sidebar {
    width: 180px;
    margin-right: 8px;
    flex-shrink: 0;
}

.sidebar-section {
    background: #fff;
    border: 1px solid #d1d5db;
    margin-bottom: 8px;
    border-radius: 3px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.sidebar-title {
    background: linear-gradient(to right, #f9fafb, #f3f4f6);
    padding: 8px 10px;
    font-weight: bold;
    color: #374151;
    border-bottom: 1px solid #e5e7eb;
    font-size: 12px;
}

.sidebar-content {
    padding: 10px;
    font-size: 12px;
    color: #374151;
}

/* 公告样式 */
.notice-content {
    line-height: 1.8;
}

.notice-content p {
    margin-bottom: 5px;
}

.notice-date {
    text-align: right;
    color: #9ca3af;
    font-size: 11px;
    margin-top: 8px;
}

/* 统计样式 */
.stats-content .stat-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px dashed #e5e7eb;
}

.stats-content .stat-row:last-child {
    border-bottom: none;
}

.stats-content .online {
    color: #10b981;
    font-weight: bold;
}

/* 迷你文件列表 */
.file-list-mini {
    list-style: none;
    padding: 0;
    margin: 0;
}

.file-list-mini li {
    padding: 5px 0;
    border-bottom: 1px dashed #e5e7eb;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-list-mini li:last-child {
    border-bottom: none;
}

.file-list-mini a {
    color: #333;
    text-decoration: none;
    font-size: 11px;
}

.file-list-mini a:hover {
    color: #ff0000;
    text-decoration: underline;
}

.file-list-mini .count {
    color: #9ca3af;
    font-size: 10px;
}

.empty-tip {
    text-align: center;
    color: #9ca3af;
    padding: 10px 0;
}

/* 内容区 */
.content-area {
    flex: 1;
    background: #fff;
    border: 1px solid #d1d5db;
    display: flex;
    flex-direction: column;
    border-radius: 3px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

/* 内容头部 */
.content-header {
    background: linear-gradient(to right, #fff, #f9fafb);
    border-bottom: 1px solid #e5e7eb;
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.breadcrumb {
    color: #000;
}

.breadcrumb a {
    color: #000;
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #ff0000;
    text-decoration: underline;
}

/* 文件列表区 */
.file-list-container {
    flex: 1;
    padding: 10px;
    overflow: auto;
    background: #fff;
}

/* 文件夹项 */
.folder-item {
    border-bottom: 1px dashed #e5e7eb;
    font-size: 13px !important;
    font-family: "微软雅黑", "Microsoft YaHei", Arial, sans-serif !important;
}

.folder-item:hover {
    background: #f9fafb;
}

.folder-item a {
    display: block;
    padding: 10px 12px;
    color: #000 !important;
    text-decoration: none;
    font-size: 13px !important;
    font-family: "微软雅黑", "Microsoft YaHei", Arial, sans-serif !important;
}

.folder-item a:hover {
    color: #ff0000 !important;
    text-decoration: underline;
}

.folder-icon-img {
    width: 18px;
    height: 18px;
    margin-right: 5px;
    vertical-align: middle;
}

.file-icon-img {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    vertical-align: middle;
}

/* 文件项 */
.file-item {
    padding: 10px 12px;
    border-bottom: 1px dashed #e5e7eb;
    display: flex;
    align-items: center;
    font-size: 13px !important;
    font-family: "微软雅黑", "Microsoft YaHei", Arial, sans-serif !important;
}

.file-item:hover {
    background: #f9fafb;
}

.file-name {
    flex: 1;
}

.file-name a {
    color: #000 !important;
    text-decoration: none;
    font-size: 13px !important;
    font-family: "微软雅黑", "Microsoft YaHei", Arial, sans-serif !important;
}

.file-name a:hover {
    color: #ff0000 !important;
    text-decoration: underline;
}

.file-info {
    color: #888;
    font-size: 11px;
    margin-left: 15px;
}

.download-link {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: #409eff;
    color: #fff !important;
    text-decoration: none;
    border-radius: 3px;
    font-size: 12px;
    margin-left: 8px;
    border: 1px solid #409eff;
    transition: all 0.2s;
}

.download-link:hover {
    background: #66b1ff;
    border-color: #66b1ff;
    text-decoration: none !important;
}

.download-link svg {
    width: 12px;
    height: 12px;
    margin-right: 3px;
    fill: currentColor;
}

/* 排序选项 */
.sort-options {
    padding: 8px 12px;
    background: #f9fafb;
    border-top: 1px solid #e5e7eb;
    font-size: 12px;
    color: #374151;
}

.sort-options label {
    margin-right: 15px;
    cursor: pointer;
}

/* 空目录提示 */
.empty-folder {
    padding: 50px;
    text-align: center;
    color: #9ca3af;
}


/* 后台管理按钮 - 固定在左下角，与侧边栏居中对齐 */
.admin-btn-wrap {
    position: fixed;
    left: 8px;
    bottom: 15px;
    width: 180px;
    text-align: center;
    z-index: 1000;
}

.admin-btn {
    display: inline-block;
    text-align: center;
    padding: 8px 35px;
    background: linear-gradient(to bottom, #5ba0e8, #4a90d9);
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 12px;
    border: 1px solid #3a80c9;
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.admin-btn:hover {
    background: linear-gradient(to bottom, #6bb0f0, #5ba0e8);
    color: #fff;
    text-decoration: none;
}


/* 手机端响应式样式 */
@media screen and (max-width: 768px) {
    .hide-mobile {
        display: none !important;
    }
    .header {
        padding: 12px 15px;
        font-size: 18px;
    }
    .header .subtitle {
        font-size: 18px;
    }
    .status-bar {
        padding: 5px 10px;
        font-size: 11px;
        text-align: center;
    }
    .main-wrapper {
        flex-direction: column;
        padding: 5px;
    }
    .sidebar {
        width: 100%;
        margin-right: 0;
        margin-bottom: 8px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 5px;
    }
    .sidebar-section {
        margin-bottom: 0;
    }
    .sidebar-title {
        padding: 6px 8px;
        font-size: 11px;
    }
    .sidebar-content {
        padding: 8px;
        font-size: 11px;
    }
    .content-area {
        min-height: 400px;
    }
    .content-header {
        padding: 8px 10px;
    }
    .breadcrumb {
        font-size: 12px;
    }
    .file-list-container {
        padding: 5px;
    }
    /* 文件夹项 - 手机端 */
    .folder-item a {
        padding: 8px 10px;
        font-size: 13px !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .folder-icon-img {
        width: 16px;
        height: 16px;
    }
    /* 文件项 - 手机端横向布局 */
    .file-item {
        padding: 8px 10px;
        flex-wrap: nowrap;
    }
    .file-icon-img {
        width: 20px;
        height: 20px;
        min-width: 20px;
        margin-right: 8px;
    }
    .file-name {
        flex: 1;
        min-width: 0;
        overflow: hidden;
    }
    .file-name a {
        display: block;
        font-size: 12px !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .file-info {
        margin-left: 8px;
        white-space: nowrap;
        font-size: 10px;
    }
    .download-link {
        padding: 3px 8px;
        font-size: 10px;
        margin-left: 5px;
    }
    /* 排序选项 */
    .sort-options {
        padding: 6px 10px;
        font-size: 11px;
    }
    .sort-options label {
        margin-right: 10px;
    }
    /* 后台管理按钮 */
    .admin-btn-wrap {
        left: 50%;
        transform: translateX(-50%);
        width: auto;
        bottom: 10px;
        display: none;
    }
    .admin-btn {
        padding: 8px 25px;
        font-size: 12px;
    }
    /* 隐藏部分侧边栏内容 */
    .notice-date {
        display: none;
    }
    .stats-content .stat-row {
        padding: 3px 0;
        font-size: 11px;
    }
    .file-list-mini li {
        padding: 4px 0;
        font-size: 10px;
    }
    .file-list-mini a {
        font-size: 10px;
    }
}

/* 更小屏幕 */
@media screen and (max-width: 480px) {
    .header {
        padding: 10px 12px;
        font-size: 16px;
    }
    .header .subtitle {
        font-size: 16px;
    }
    .sidebar {
        grid-template-columns: 1fr;
    }
    .file-item {
        padding: 6px 8px;
    }
    .file-icon-img {
        width: 18px;
        height: 18px;
        min-width: 18px;
        margin-right: 6px;
    }
    .file-name a {
        font-size: 11px !important;
    }
    .file-info {
        font-size: 9px;
    }
    .download-link {
        padding: 2px 6px;
        font-size: 9px;
    }
}