Method show

static/js/utils.js:22–42

(message, type = 'info', duration = 4000)

    }

    show(message, type = 'info', duration = 4000) {
        const toast = document.createElement('div');
        toast.className = `toast ${type}`;

        const icon = this.getIcon(type);
        toast.innerHTML = `
            <span class="toast-icon">${icon}</span>
            <span class="toast-message">${this.escapeHtml(message)}</span>
            <button class="toast-close" onclick="this.parentElement.remove()">&times;</button>
        `;

        this.container.appendChild(toast);

        // 自动移除
        setTimeout(() => {
            toast.style.animation = 'slideOut 0.3s ease forwards';
            setTimeout(() => toast.remove(), 300);
        }, duration);

        return toast;
    }

    getIcon(type) {
        const icons = {