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(max-width:520px){.ds-en{font-size:16px}.ds-s{padding:12px}}.tutor-fab{right:max(16px,env(safe-area-inset-right));bottom:max(16px,calc(env(safe-area-inset-bottom) + 12px));z-index:38;background:var(--peri-700);color:#fff;letter-spacing:-.01em;border:2px solid #fff;border-radius:999px;align-items:center;gap:8px;height:52px;padding:0 20px 0 16px;font-size:15px;font-weight:700;transition:transform .15s,background .15s;display:inline-flex;position:fixed;box-shadow:0 10px 24px -8px #2c355773,0 2px 6px #2c35572e}.tutor-fab:hover{background:var(--peri-900);transform:translateY(-2px)}.tutor-fab:focus-visible{outline:3px solid var(--peri-300);outline-offset:3px}footer{padding-bottom:96px}@media (max-width:520px){.tutor-fab{height:48px;padding:0 16px 0 13px;font-size:14px}}@media print{.tutor-fab{display:none}}@media (prefers-reduced-motion:reduce){.tutor-fab{transition:none}}nav .parent{color:var(--sub);border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:13.5px}nav .parent:hover{border-color:var(--peri-300)}@media (min-width:961px) and (max-width:1180px){nav{gap:14px;font-size:14px}nav .btn{padding:8px 12px}}.mnav a.parent{color:var(--sub);border-bottom:0;font-size:15px;font-weight:500}