/* =========================================
   sidebar.css — 侧边栏样式
   ========================================= */

/* --- 侧边栏容器 --- */
.sidebar {
    position: fixed;
    left: 0; top: 0;
    width: 10vw;
    min-width: 140px;
    max-width: 220px;
    height: 100vh;
    background: var(--bg-sidebar);
    box-shadow: var(--shadow-sidebar);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: width .28s cubic-bezier(.4,0,.2,1);
    overflow: visible;
}
.sidebar.collapsed { width: 60px; }

/* --- Logo区域 --- */
.sidebar-logo {
    display: flex;
    align-items: center;
    padding: 20px 16px 16px;
    gap: 10px;
    min-height: 68px;
    cursor: default;
}
.sidebar-logo img {
    width: 32px; height: 32px;
    border-radius: 8px;
    flex-shrink: 0;
    object-fit: cover;
}
.sidebar-logo .sys-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: opacity .2s;
}
.sidebar.collapsed .sys-name { opacity: 0; width: 0; }

.sidebar-logo .collapse-btn {
    margin-left: auto;
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-tertiary);
    transition: background .2s, color .2s;
    flex-shrink: 0;
}
.sidebar-logo .collapse-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}
.sidebar.collapsed .collapse-btn { display: none; }
.sidebar.collapsed .sidebar-logo { justify-content: center; cursor: pointer; }

/* --- 导航菜单 --- */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px;
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 2px; }

.nav-item {
    position: relative;
}
.nav-link {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: background .15s, color .15s;
    gap: 10px;
    white-space: nowrap;
    text-decoration: none;
    user-select: none;
}
.nav-link:hover { background: var(--bg-hover-menu); color: var(--text-primary); }
.nav-link.active { background: var(--accent-light); color: var(--accent-color); font-weight: 500; }
.nav-link .nav-icon { width: 20px; text-align: center; flex-shrink: 0; font-size: 16px; }
.nav-link .nav-text { flex: 1; overflow: hidden; text-overflow: ellipsis; transition: opacity .2s; }
.nav-link .nav-arrow { font-size: 12px; transition: transform .25s; flex-shrink: 0; }
.nav-link .nav-arrow.open { transform: rotate(90deg); }

.sidebar.collapsed .nav-text,
.sidebar.collapsed .nav-arrow { opacity: 0; width: 0; overflow: hidden; }
.sidebar.collapsed .nav-link { justify-content: center; padding: 10px 0; }

/* sub menu */
.nav-sub { overflow: hidden; max-height: 0; transition: max-height .3s ease; }
.nav-sub.open { max-height: 200px; }
.nav-sub .nav-link { padding-left: 46px; font-size: 13px; }
.sidebar.collapsed .nav-sub { display: none; }

/* 折叠态hover浮动子菜单 */
.sidebar.collapsed .nav-item .nav-float-sub {
    display: none;
    position: absolute;
    left: 60px; top: 0;
    background: var(--bg-card);
    border-radius: 8px;
    box-shadow: var(--shadow-dropdown);
    padding: 6px;
    min-width: 140px;
    z-index: 2000;
}
.sidebar.collapsed .nav-item:hover .nav-float-sub { display: block; }
.nav-float-sub .nav-link { padding: 8px 14px; }

/* tooltip for collapsed */
.sidebar.collapsed .nav-item[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 64px;
    top: 50%; transform: translateY(-50%);
    background: var(--bg-tooltip);
    color: var(--text-inverse);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 2001;
    pointer-events: none;
}
.sidebar.collapsed .nav-item.has-sub:hover::after { display: none; }

/* divider */
.nav-divider {
    height: 1px;
    background: var(--border-light);
    margin: 8px 12px;
}

/* --- 公司信息 --- */
.sidebar-footer-info {
    padding: 12px 16px;
    font-size: 11px;
    color: var(--text-tertiary);
    line-height: 1.6;
    border-top: 1px solid var(--border-light);
}
.sidebar-footer-info a { color: var(--text-tertiary); text-decoration: none; }
.sidebar-footer-info a:hover { color: var(--text-link); }
.sidebar.collapsed .sidebar-footer-info { display: none; }

/* --- 底部工具栏 --- */
.sidebar-toolbar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 12px;
    border-top: 1px solid var(--border-light);
}
.toolbar-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
    transition: background .15s, color .15s;
    position: relative;
    white-space: nowrap;
    border: none;
    background: none;
}
.toolbar-btn:hover { background: var(--hover-bg); color: var(--text-primary); }
.toolbar-btn .btn-icon { font-size: 16px; flex-shrink: 0; }
.toolbar-btn .btn-text { transition: opacity .2s; }
.sidebar.collapsed .toolbar-btn .btn-text { display: none; }
.sidebar.collapsed .sidebar-toolbar { flex-direction: column; gap: 2px; }
.sidebar.collapsed .toolbar-btn { padding: 8px; }

/* 主题切换按钮（单按钮） */
.theme-toggle-btn {
    display: flex; align-items: center; justify-content: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    transition: background .15s, color .15s;
    border: none;
    background: none;
    white-space: nowrap;
}
.theme-toggle-btn:hover { background: var(--hover-bg); color: var(--text-primary); }
.theme-toggle-btn .btn-text { transition: opacity .2s; }
.sidebar.collapsed .theme-toggle-btn .btn-text { display: none; }

/* 悬浮弹出层（APP二维码、更多菜单） */
.toolbar-popup {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 0;
    margin-bottom: 8px;
    background: var(--bg-card);
    border-radius: 10px;
    box-shadow: var(--shadow-dropdown);
    z-index: 3000;
    padding: 12px;
}
.toolbar-btn:hover .toolbar-popup { display: block; }
.toolbar-popup.more-menu { width: 180px; padding: 6px; }
.toolbar-popup.more-menu .menu-link {
    display: block;
    padding: 8px 14px;
    font-size: 13px;
    color: var(--text-secondary);
    border-radius: 6px;
    text-decoration: none;
    transition: background .15s;
}
.toolbar-popup.more-menu .menu-link:hover { background: var(--hover-bg); color: var(--text-primary); }
.toolbar-popup.qr-popup { width: 160px; text-align: center; }
.toolbar-popup.qr-popup img { width: 130px; height: 130px; border-radius: 4px; }
.toolbar-popup.qr-popup p { font-size: 12px; color: var(--text-tertiary); margin-top: 6px; }

.popup-divider { height: 1px; background: var(--border-light); margin: 4px 8px; }
.popup-share-row { display: flex; justify-content: center; gap: 16px; padding: 8px 0 4px; }
.popup-share-row a { font-size: 20px; color: var(--text-tertiary); transition: color .2s; text-decoration: none; }
.popup-share-row a:hover { color: var(--accent-color); }

/* --- 移动端遮罩层 --- */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    z-index: 999;
}

/* --- 移动端抽屉内用户区 --- */
.drawer-user {
    display: none;
    padding: 16px;
    border-bottom: 1px solid var(--border-light);
}
.drawer-user .avatar { width: 44px; height: 44px; border-radius: 50%; }
.drawer-user .nickname { font-size: 14px; color: var(--text-primary); font-weight: 500; margin-left: 10px; }
.drawer-user .login-btn {
    padding: 6px 18px;
    background: var(--accent-color);
    color: #fff;
    border: none; border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
}