.auth-overlay {
    position: fixed;
    inset: 0;
    z-index: 95000;            /* 高于 Dock(90000) 与所有常驻浮层，低于拖拽/动画遮罩(99999) */
    display: flex;
    align-items: center;
    justify-content: center;
    /* 全屏登录界面：不透明壁纸铺满，不再半透明露桌面、不再是小框 */
    background: linear-gradient(135deg, #4b2c6f 0%, #7b3f8f 38%, #c96f8f 72%, #f0a06a 100%);
    animation: authFadeIn 0.5s ease-out;
    color: #fff;
}

.auth-overlay.auth-hide {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.45s ease;
}

@keyframes authFadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.auth-card {
    width: 360px;
    max-width: 88vw;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    text-align: center;
}

.auth-logo {
    font-size: 44px;
    color: #fff;
}

.auth-avatar {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 600;
    color: #fff;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.auth-avatar-picker {
    display: flex;
    gap: 10px;
}

.avatar-dot {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: url('../webp/cursor-normal.png') 4 4, default;
    padding: 0;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.avatar-dot.selected {
    border-color: #fff;
    transform: scale(1.18);
}

.auth-title {
    font-size: 22px;
    font-weight: 600;
    margin: 0;
}

.auth-sub {
    font-size: 13px;
    opacity: 0.72;
    margin: -6px 0 6px;
}

.auth-field {
    width: 100%;
}

.auth-field input {
    width: 100%;
    box-sizing: border-box;
    padding: 11px 14px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.auth-field input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.auth-field input:focus {
    border-color: #007aff;
    background: rgba(255, 255, 255, 0.16);
}

.auth-error {
    color: #ff6b6b;
    font-size: 12px;
    min-height: 16px;
}

.auth-btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: #007aff;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: url('../webp/cursor-normal.png') 4 4, default;
    transition: background 0.2s ease;
}

.auth-btn:hover {
    background: #0a84ff;
}

.auth-link {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
    cursor: url('../webp/cursor-normal.png') 4 4, default;
    text-decoration: underline;
    padding: 4px;
}

/* 登录卡片全屏化后无独立背景，沿用 overlay 全屏壁纸 */

/* 响应式 */
@media (max-width: 480px) {
    .auth-card {
        padding: 32px 22px;
    }
    .auth-title {
        font-size: 20px;
    }
}