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auto;width:46px;height:46px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#fff;font-size:1.25rem;line-height:1;box-shadow:0 4px 14px rgba(15,23,42,.18);transition:transform .15s ease,box-shadow .15s ease}.help-item-tron--hd{border:2px solid #2563eb}.help-item-tron--bug{border:2px solid #16a34a}.help-item-tron--zalo{border:2px solid #0068ff;background:#0068ff;color:#fff;font-family:inherit;font-size:.72rem;font-weight:800;letter-spacing:-.2px}.help-item:focus-visible .help-item-tron,.help-item:hover .help-item-tron{transform:scale(1.08);box-shadow:0 6px 20px rgba(15,23,42,.26)}.help-item-nhan{max-width:0;overflow:hidden;white-space:nowrap;opacity:0;padding:0;border-radius:999px;color:#fff;font-size:.92rem;font-weight:700;line-height:38px;transition:max-width .25s ease,opacity .18s ease,padding .25s ease}.help-item:focus-visible .help-item-nhan,.help-item:hover .help-item-nhan{max-width:240px;opacity:1;padding:0 18px}.help-item:first-child .help-item-nhan{background:#2563eb}.help-item:nth-child(2) .help-item-nhan{background:#16a34a}.help-item:nth-child(3) .help-item-nhan{background:#0068ff}.help-item:focus-visible{outline:none}.help-item:focus-visible .help-item-tron{outline:3px solid rgba(37,99,235,.45);outline-offset:2px}@media (prefers-reduced-motion:reduce){.help-item,.help-item-nhan,.help-item-tron{transition-duration:.01ms}.help-fab-wrap.is-open .help-item{transition-delay:0s}}@media (hover:none){.help-fab-wrap.is-open .help-item-nhan{max-width:240px;opacity:1;padding:0 16px}}.help-modal-backdrop{position:fixed;inset:0;z-index:90;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;padding:16px}.help-modal{width:100%;max-width:480px;max-height:calc(100vh - 32px);overflow-y:auto;background:#fff;border-radius:14px;box-shadow:0 24px 60px rgba(0,0,0,.3)}.help-modal-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid 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