._page_11k87_1{color:#142638;background:#f5f7fa;min-height:100vh}._wrap_11k87_2{max-width:1080px;margin:auto;padding:48px 24px 70px}._back_11k87_3{background:#fff;border:1px solid #c9d4df;border-radius:8px;gap:8px;margin-bottom:28px;padding:12px 16px;font-weight:700;display:inline-flex}._intro_11k87_4{max-width:780px;margin-bottom:30px}._intro_11k87_4 h1{margin:12px 0 20px;font-size:clamp(2rem,4vw,3.2rem);line-height:1.12}._intro_11k87_4 p,._card_11k87_6 p{white-space:pre-line;line-height:1.7}._lessonNav_11k87_7{flex-wrap:wrap;gap:12px;margin-bottom:24px;display:flex}._lessonNav_11k87_7 a{color:#143f55;background:#fff;border:1px solid #b8c9d6;border-radius:8px;padding:10px 14px;font-weight:700}._actions_11k87_9{flex-wrap:wrap;align-items:center;gap:12px;margin:20px 0;display:flex}._card_11k87_6[id]{scroll-margin-top:110px}._card_11k87_6 a:focus-visible,._lessonNav_11k87_7 a:focus-visible{outline-offset:4px;outline:3px solid #246b93}._grid_11k87_12{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;display:grid}._card_11k87_6{background:#fff;border:1px solid #d4dfe7;border-radius:14px;margin-bottom:22px;padding:28px}._card_11k87_6 h2{margin:0 0 16px;font-size:1.5rem}._card_11k87_6 h3{margin:24px 0 10px}._card_11k87_6 li{margin:8px 0;line-height:1.7}._card_11k87_6 img{width:100%;height:auto;margin-top:20px}._math_11k87_18{padding:12px 0;overflow-x:auto}._option_11k87_19{cursor:pointer;border:1px solid #c6d3de;border-radius:9px;gap:12px;margin:12px 0;padding:16px;line-height:1.6;display:flex}._option_11k87_19 input{flex-shrink:0;margin-top:6px}._card_11k87_6 textarea{width:100%;min-height:130px;font:inherit;border:1px solid #b8c9d6;border-radius:8px;padding:14px;line-height:1.6}._card_11k87_6 button{color:#fff;cursor:pointer;font:inherit;background:#143f55;border:0;border-radius:8px;margin:10px 0;padding:13px 19px;font-weight:700}._card_11k87_6 button:disabled{opacity:.5;cursor:default}._feedback_11k87_24{white-space:pre-line;background:#eef8f4;border-left:4px solid #25826e;padding:16px;line-height:1.7}._card_11k87_6 summary{cursor:pointer;padding:14px 0;font-weight:700}._meta_11k87_26{color:#496879;font-size:.95rem}._exhibit_11k87_27{margin:20px 0 0}._exhibit_11k87_27 img{margin:0;display:block}._exhibit_11k87_27 figcaption{margin-top:10px;font-size:14px}._exhibit_11k87_27 a{color:#246b93;text-underline-offset:4px;text-decoration:underline}._exhibit_11k87_27 a:focus-visible{outline-offset:4px;border-radius:4px;outline:3px solid #246b93}@media (width<=650px){._grid_11k87_12{grid-template-columns:1fr}._wrap_11k87_2{padding:30px 18px 50px}._card_11k87_6{padding:20px}}._programGroup_11k87_33{margin-top:3rem;scroll-margin-top:6rem}._programGroup_11k87_33>h2{margin-bottom:1rem;font-size:clamp(1.65rem,3vw,2.3rem)}._catalogCard_11k87_35{flex-direction:column;display:flex;overflow:hidden}._catalogCard_11k87_35 ._catalogThumb_11k87_36{aspect-ratio:16/9;object-fit:cover;border-radius:.7rem;width:100%;height:auto;margin-bottom:1rem}._catalogCard_11k87_35 h3{font-size:1.3rem;line-height:1.3}._catalogCard_11k87_35>a:last-child{align-self:flex-start;margin-top:auto}._catalogCard_11k87_35 p:last-of-type{margin-bottom:1.25rem}