/* 买家中心 - PC 导航（侧栏 + 顶栏） */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .45);
    z-index: 999;
}

.sidebar-overlay.show {
    display: block;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--buyer-sidebar-width, 220px);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    z-index: 1000;
    overflow-y: auto;
}

.sidebar-header,
.sidebar-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 64px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-primary);
    box-sizing: border-box;
}

.sidebar-brand:hover {
    color: var(--text-primary);
    background: rgba(29, 33, 41, .02);
}

.sidebar-brand-logo {
    display: block;
    max-width: 100%;
    max-height: 36px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.sidebar-brand-text {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
}

.buyer-nav-sidebar {
    padding: 10px 10px 14px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.buyer-nav-sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    margin: 0;
    padding: 0 12px;
    height: 40px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary, #4e5969);
    font-size: 14px;
    line-height: 1;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
    transition: background-color .15s ease, color .15s ease;
}

.buyer-nav-sidebar .nav-link:hover {
    color: var(--text-primary, #1d2129);
    background: rgba(29, 33, 41, .04);
}

.buyer-nav-sidebar .nav-link.active {
    color: rgb(var(--primary-6));
    background: rgba(var(--primary-6), .1);
    font-weight: 600;
}

.buyer-nav-sidebar .nav-link [data-arco-icon] {
    display: inline-flex;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
}

.buyer-nav-sidebar .nav-link [data-arco-icon] .arco-icon,
.buyer-nav-sidebar .nav-link [data-arco-icon] svg {
    width: 16px;
    height: 16px;
}

.buyer-nav-sidebar .nav-submenu {
    margin: 2px 0;
}

.buyer-nav-sidebar .nav-submenu-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 40px;
    padding: 0 12px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary, #4e5969);
    font-size: 14px;
    cursor: pointer;
    transition: background-color .15s ease, color .15s ease;
}

.buyer-nav-sidebar .nav-submenu-title:hover {
    color: var(--text-primary, #1d2129);
    background: rgba(29, 33, 41, .04);
}

.buyer-nav-sidebar .nav-submenu.has-active > .nav-submenu-title {
    color: rgb(var(--primary-6));
}

.buyer-nav-sidebar .nav-submenu-title-main {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.buyer-nav-sidebar .nav-submenu-title-main [data-arco-icon] .arco-icon,
.buyer-nav-sidebar .nav-submenu-title-main [data-arco-icon] svg {
    width: 16px;
    height: 16px;
}

.buyer-nav-sidebar .nav-submenu-caret {
    width: 6px;
    height: 6px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    opacity: .55;
    transition: transform .18s ease;
    margin-right: 2px;
}

.buyer-nav-sidebar .nav-submenu.is-open .nav-submenu-caret {
    transform: rotate(-135deg);
    margin-top: 2px;
}

.buyer-nav-sidebar .nav-submenu-list {
    list-style: none;
    margin: 0;
    padding: 2px 0 4px;
    display: none;
}

.buyer-nav-sidebar .nav-submenu.is-open .nav-submenu-list {
    display: block;
}

.buyer-nav-sidebar .nav-link-child {
    height: 36px;
    padding-left: 40px;
    font-size: 13.5px;
    color: var(--text-muted, #86909c);
}

.buyer-nav-sidebar .nav-link-child:hover {
    color: var(--text-primary, #1d2129);
}

.buyer-nav-sidebar .nav-link-child.active {
    color: rgb(var(--primary-6));
    background: rgba(var(--primary-6), .1);
}

.buyer-nav-sidebar .sidebar-nav-footer {
    list-style: none;
    margin: 0;
    padding: 0;
}

.buyer-nav-sidebar .sidebar-nav-footer .nav-link {
    color: var(--text-muted, #86909c);
}

.sidebar-divider {
    height: 1px;
    margin: 8px 6px;
    background: var(--border-color, #e5e6eb);
}

.topbar {
    position: fixed;
    top: 0;
    left: var(--buyer-sidebar-width, 220px);
    right: 0;
    height: var(--buyer-topbar-height, 60px);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--buyer-main-gutter, 20px);
    z-index: 998;
}

.topbar-main {
    display: flex;
    align-items: center;
    min-width: 0;
}

.topbar-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.topbar-breadcrumb strong {
    color: var(--text-primary);
    font-weight: 600;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-user-card {
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 260px;
    padding: 4px 6px 4px 5px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid rgba(29, 33, 41, 0.08);
    box-shadow: 0 1px 3px rgba(29, 33, 41, 0.05);
}

.topbar-user {
    flex: 1;
    min-width: 0;
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.topbar-user-divider {
    width: 1px;
    height: 18px;
    background: rgba(29, 33, 41, 0.1);
    flex-shrink: 0;
}

.topbar-logout-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color .2s, color .2s;
}

.topbar-logout-btn:hover {
    background: rgba(var(--danger-6), 0.08);
    color: rgb(var(--danger-6));
}

.topbar-logout-btn [data-arco-icon],
.topbar-logout-btn .arco-icon,
.topbar-logout-btn svg {
    width: 15px;
    height: 15px;
}

.topbar-avatar.arco-avatar {
    width: 30px;
    height: 30px;
    font-size: 13px;
    background: linear-gradient(135deg, #4096ff 0%, rgb(var(--primary-6)) 100%);
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(var(--primary-6), 0.28);
}

.topbar-avatar .arco-avatar-text {
    font-size: 14px;
    font-weight: 600;
}

.topbar-avatar .topbar-avatar-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: #fff;
}

.topbar-avatar .topbar-avatar-icon .arco-icon,
.topbar-avatar .topbar-avatar-icon svg {
    width: 16px;
    height: 16px;
}

.topbar-avatar .arco-avatar-image img {
    object-fit: cover;
}

.menu-toggle {
    display: none;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-card-hover);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-right: 8px;
}

@media (max-width: 1024px) {
    .menu-toggle {
        display: inline-flex;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform .25s;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .topbar {
        left: 0;
        padding: 0 clamp(12px, 2vw, 20px);
    }

    .topbar-breadcrumb {
        min-width: 0;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .topbar-user-card {
        max-width: min(240px, 42vw);
    }

    .main {
        margin-left: 0;
    }
}