/* 前台统一外壳样式：悬浮导航 Dock + Toast */
.xh-dock {
    position: fixed;
    right: 18px;
    bottom: 26px;
    z-index: 9998;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    font-family: var(--xh-font);
}

.xh-dock-toggle {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 1px solid rgba(var(--xh-w), var(--xh-w), var(--xh-w), .16);
    background: linear-gradient(135deg, rgba(var(--xh-primary-rgb), .95), rgba(var(--xh-primary-2-rgb), .95));
    box-shadow: 0 12px 26px rgba(35, 70, 150, .42);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: transform .2s ease, box-shadow .2s ease;
    backdrop-filter: blur(10px);
}
.xh-dock-toggle svg { width: 22px; height: 22px; fill: #fff; }
.xh-dock-toggle:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(35, 70, 150, .55); }

.xh-dock-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    transform: translateY(8px) scale(.96);
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
}

.xh-dock.open .xh-dock-list {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}
.xh-dock.open .xh-dock-toggle { transform: rotate(180deg); }

.xh-dock-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 38px;
    padding: 0 12px 0 10px;
    border-radius: var(--xh-radius-pill);
    border: 1px solid rgba(var(--xh-w), var(--xh-w), var(--xh-w), .14);
    background: var(--xh-panel-2);
    color: #dbe7fb !important;
    text-decoration: none !important;
    font-size: 12.5px;
    line-height: 1;
    cursor: pointer;
    box-shadow: var(--xh-shadow-sm);
    backdrop-filter: blur(12px);
    transition: background .16s ease, transform .16s ease, color .16s ease;
    white-space: nowrap;
}
.xh-dock-btn svg { width: 17px; height: 17px; fill: #93b6ff; flex: none; }
.xh-dock-btn:hover {
    background: linear-gradient(135deg, rgba(var(--xh-primary-rgb), .92), rgba(var(--xh-primary-2-rgb), .92));
    color: #fff !important;
    transform: translateX(-2px);
}
.xh-dock-btn:hover svg { fill: #fff; }

.xh-toast {
    position: fixed;
    left: 50%;
    top: 26px;
    transform: translate(-50%, -14px);
    z-index: 10000;
    padding: 11px 18px;
    border-radius: var(--xh-radius-sm);
    background: var(--xh-panel-2);
    border: 1px solid rgba(var(--xh-primary-rgb), .4);
    color: #e9f1ff;
    font-size: 13.5px;
    font-family: var(--xh-font);
    box-shadow: var(--xh-shadow);
    opacity: 0;
    transition: opacity .25s ease, transform .25s ease;
    pointer-events: none;
}
.xh-toast.show { opacity: 1; transform: translate(-50%, 0); }
.xh-toast.error { border-color: rgba(255, 107, 129, .55); color: #ffdbe2; }

/* 夜间模式兜底：确保 Dock 在原站深色/浅色主题下都可见 */
@media (max-width: 640px) {
    .xh-dock { right: 12px; bottom: 18px; }
    .xh-dock-toggle { width: 42px; height: 42px; }
    .xh-dock-btn { height: 34px; font-size: 12px; }
}