.study-page{max-width:900px;margin:28px auto 60px;padding:0 24px;color:#333;background:white}.study-space{font-family:var(--font-noto-sans-jp),sans-serif;font-size:17px;line-height:1.85;color:#333;min-width:0}.study-space h1{font-size:clamp(25px,4vw,32px);line-height:1.5;margin:24px 0 14px}.study-space h3{font-size:20px;line-height:1.6;margin:16px 0 10px}.study-space button,.study-space input,.study-space select,.study-space textarea{font:inherit;color:inherit;box-sizing:border-box;max-width:100%;min-width:0}.study-space button{cursor:pointer;border:1px solid #888;border-radius:3px;background:white;padding:8px 14px;min-height:44px}.study-space button:disabled{opacity:.55;cursor:default}.study-space .study-primary{background:#3b3b3b;color:#fff;border-color:#3b3b3b}.study-space button[aria-pressed=true]{color:#a24242;border-color:#a24242;background:#fff8f8}.study-space a{color:inherit;text-underline-offset:4px;overflow-wrap:anywhere}.study-space :focus-visible{outline:3px solid #806d3b;outline-offset:3px}.study-space fieldset{margin:0;padding:0;border:0;min-width:0}.study-space label{display:grid;gap:6px;margin:14px 0}.study-space input,.study-space select,.study-space textarea{border:1px solid #999;border-radius:3px;background:white;padding:9px 10px;width:100%}.study-space textarea{min-height:100px;resize:vertical}.study-actions,.study-profile{display:flex;gap:12px 18px;align-items:center;flex-wrap:wrap;margin:18px 0}.study-profile p{margin:0}.study-hint,.study-profile button,.study-reply time,.study-scope{font-size:15px}.study-nickname{padding:12px 0 22px;border-bottom:1px solid #ddd}.study-nickname input{max-width:350px}.study-fields{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.study-room-label{max-width:650px}.study-summary{display:flex;align-items:baseline;gap:12px 24px;flex-wrap:wrap;border-bottom:1px solid #ddd;padding:12px 0 22px}.study-summary p{margin:0}.study-summary strong{font-size:27px;font-weight:500}.study-summary span{color:#555}.study-form{padding:20px 0 26px;border-top:1px solid #bbb;border-bottom:1px solid #bbb;margin:26px 0}.study-visibility{color:#333;background:#f5f5f3;padding:12px 16px}.study-post{border-top:1px solid #ccc;padding:25px 0;overflow-wrap:anywhere}.study-post header{display:flex;gap:12px 24px;flex-wrap:wrap;align-items:center}.study-post header time{font-size:15px}.study-post header strong{font-size:18px}.study-post .club-board-text{white-space:pre-wrap;overflow-wrap:anywhere}.study-post .study-actions button{font-size:15px}.study-photo-preview,.study-photos{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin:20px 0}.study-photo-preview img,.study-photos img{width:100%;height:auto;max-height:480px;object-fit:contain;display:block;background:#fafafa}.study-photo-preview button{font-size:14px;margin-top:8px}.study-replies{padding:4px 0 18px 18px;border-left:2px solid #ccc}.study-reply{border-bottom:1px solid #ddd;padding:12px 0}.study-reply p{margin:0 0 8px}.study-reply button{font-size:14px;margin-top:6px}.study-empty{padding:24px 0;color:#555}.club-board .study-space{margin-top:24px}.club-board .study-space h1{font-size:26px}@media(max-width:650px){.study-page{padding:0 18px;margin-top:20px}.study-fields{grid-template-columns:1fr}.study-actions{gap:10px}.study-photo-preview,.study-photos{grid-template-columns:1fr}.study-summary{gap:6px 16px}.study-post{padding:22px 0}.study-space label{margin:12px 0}.study-replies{padding-left:12px}}.study-progress,.study-timer{border-top:1px solid #ddd;padding:24px 0}.study-space h2{font-size:22px;line-height:1.5;margin:0 0 14px}.study-timer output{font-size:36px;font-variant-numeric:tabular-nums;letter-spacing:2px}.study-progress>p strong{font-size:25px;font-weight:500}.study-goal{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;margin:18px 0}.study-goal label{margin:0;max-width:190px}.study-week{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:12px;max-width:620px;margin:22px 0}.study-week>div{display:flex;flex-direction:column;align-items:center;gap:6px;font-size:14px}.study-week-value{white-space:nowrap;font-size:12px}.study-week-track{height:90px;width:100%;max-width:44px;background:#f2f2ef;display:flex;align-items:flex-end;border-bottom:1px solid #aaa}.study-week-track>span{display:block;background:#6c745e;width:100%;min-height:0}#study-record-editor{scroll-margin-top:24px}@media(max-width:650px){.study-week{gap:6px}.study-week-value{font-size:11px}.study-progress>p strong{font-size:22px}}