.sidebar {
    width: 280px;
    height: 100vh;
    max-height: 100vh;
    position: sticky;
    top: 0;
    background: var(--spa-bg-sidebar);
    border-right: 1px solid var(--spa-border-sidebar);
    display: flex;
    flex-direction: column;
    padding: 28px 20px 32px 24px;
    box-shadow: var(--spa-shadow-sidebar);
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    flex-shrink: 0;
    overflow: hidden;
}

/* logo + nav 区域：占满侧栏上部，导航过长时仅滚菜单 */
.sidebar > div:first-of-type {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 48px;
    padding-left: 4px;
}

.logo-icon {
    background: var(--spa-btn-primary-bg);
    width: 36px;
    height: 36px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--spa-btn-primary-logo-glow);
}

.logo-icon span {
    font-size: 22px;
    color: white;
    font-weight: 500;
}

.logo-text {
    font-size: var(--text-h1);
    font-weight: 700;
    letter-spacing: -0.3px;
    background: linear-gradient(135deg, var(--spa-logo-grad-from), var(--spa-logo-grad-to));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}

.nav-menu {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: 14px;
    font-weight: 500;
    font-size: var(--text-body);
    color: var(--spa-nav-text);
    transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.nav-item span:first-child {
    font-size: 24px;
    font-weight: 400;
}

.nav-item:hover {
    background: var(--spa-nav-hover-bg);
    color: var(--spa-nav-hover-text);
}

.nav-item.active {
    background: var(--spa-nav-active-bg);
    color: var(--spa-accent);
    font-weight: 500;
    box-shadow: inset 0 0 0 1px var(--spa-nav-active-ring);
}

.nav-item.active span {
    color: var(--spa-accent);
}

.nav-item.nav-click-pulse {
    animation: navClickPulse 0.18s ease;
}

@keyframes navClickPulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.9;
    }

    100% {
        opacity: 1;
    }
}

.user-section {
    flex-shrink: 0;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--spa-user-border);
}

.user-wrap {
    position: relative;
}

.user-footer-note {
    font-size: 0.8125rem;
    text-align: center;
    margin-top: 16px;
    color: var(--spa-text-muted);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--spa-bg-user-card);
    border-radius: var(--spa-radius-user-card, 20px);
    padding: 12px 12px;
    transition: background 0.2s;
    cursor: pointer;
}

.user-wrap.user-menu-open .user-card {
    background: var(--spa-nav-hover-bg);
}

.user-menu {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    bottom: calc(100% + 8px);
    background: var(--spa-bg-surface);
    border: 1px solid var(--spa-border);
    border-radius: var(--spa-radius-user-card, 16px);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.12);
    padding: 6px;
    z-index: 60;
}

.user-wrap.user-menu-open .user-menu {
    display: block;
}

.user-menu .menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    font-size: var(--text-body);
    color: var(--spa-text);
    user-select: none;
}

.user-menu .menu-item:hover {
    background: var(--spa-nav-hover-bg);
}

.user-menu .menu-item.menu-item-danger {
    color: #dc2626;
}

.user-menu .menu-item .material-symbols-outlined {
    font-size: 20px;
}

.avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(145deg, #818cf8, #c084fc);
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--text-h2);
    color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}

.user-info {
    flex: 1;
}

.user-name {
    font-weight: 700;
    font-size: var(--text-body);
    color: var(--spa-text);
}

.user-email {
    font-size: 0.8125rem;
    color: var(--spa-text-muted);
    margin-top: 4px;
    word-break: break-all;
}

.more-icon {
    color: var(--spa-text-muted);
    font-size: 20px;
}

.active .material-symbols-outlined {
    font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24;
}

/* 导航图标风格（与 html[data-spa-nav-icons] 联动） */
html[data-spa-nav-icons="outlined"] .sidebar .nav-item .material-symbols-outlined {
    font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
}

html[data-spa-nav-icons="outlined"] .sidebar .nav-item.active .material-symbols-outlined {
    font-variation-settings: "FILL" 1, "wght" 500, "GRAD" 0, "opsz" 24;
}

html[data-spa-nav-icons="filled"] .sidebar .nav-item .material-symbols-outlined {
    font-variation-settings: "FILL" 1, "wght" 500, "GRAD" 0, "opsz" 24;
}

html[data-spa-nav-icons="rounded"] .sidebar .nav-item .material-symbols-outlined {
    font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
}

html[data-spa-nav-icons="rounded"] .sidebar .nav-item.active .material-symbols-outlined {
    font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24;
}

@media (max-width: 1000px) {
    .sidebar {
        width: 100px;
        padding: 24px 12px;
    }

    .nav-item span:first-child {
        font-size: 28px;
    }

    .nav-item .nav-label,
    .logo-text,
    .user-info,
    .more-icon {
        display: none;
    }

    .user-card {
        justify-content: center;
    }

    .avatar {
        margin: 0 auto;
    }
}

/* 退出登录确认弹窗 */
.spa-logout-confirm-backdrop {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(2px);
}

.spa-logout-confirm-dialog {
    width: min(420px, 100%);
    display: flex;
    flex-direction: column;
    border-radius: 16px;
    border: 1px solid var(--spa-border);
    background: var(--spa-bg-surface);
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.2);
    overflow: hidden;
}

.spa-logout-confirm-head {
    padding: 14px 18px;
    border-bottom: 1px solid var(--spa-border-soft);
    background: linear-gradient(180deg, rgba(254, 226, 226, 0.35), transparent);
}

.spa-logout-confirm-title {
    margin: 0;
    font-size: var(--text-h2);
    font-weight: 700;
    color: var(--spa-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.spa-logout-confirm-ico {
    font-size: 1.5rem;
    color: #dc2626;
    flex-shrink: 0;
}

.spa-logout-confirm-body {
    padding: 18px;
}

.spa-logout-confirm-lead {
    margin: 0;
    font-size: var(--text-body);
    color: var(--spa-text-secondary);
    line-height: 1.55;
}

.spa-logout-confirm-foot {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 18px 18px;
    border-top: 1px solid var(--spa-border-soft);
}

.spa-logout-confirm-btn {
    border: 1px solid var(--spa-border);
    border-radius: 10px;
    padding: 8px 16px;
    font-size: var(--text-body);
    font-weight: 600;
    cursor: pointer;
    background: var(--spa-bg-surface);
    color: var(--spa-text);
}

.spa-logout-confirm-btn:hover {
    background: var(--spa-nav-hover-bg);
}

.spa-logout-confirm-btn-danger {
    border-color: #fecaca;
    background: #dc2626;
    color: #fff;
}

.spa-logout-confirm-btn-danger:hover {
    background: #b91c1c;
}