/* kids-manga classroom add-ons 2026-08-15 */
.classroom{background:#fff;border:2px solid #e3e9f0;border-radius:14px;padding:18px 16px 16px;margin:18px 0;box-shadow:0 5px 16px rgba(15,37,69,.08)}
.classroom h2{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;color:#0f2545;font-size:1.15rem;margin:0 0 6px;border:0;padding:0}
.classroom-lead{color:#6a7788;font-size:.9rem;margin:0 0 12px}
.door-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.door{display:flex;flex-direction:column;gap:4px;text-decoration:none;color:#21303f;background:#f8fafc;border:2px solid var(--c,#b08a3e);border-radius:12px;padding:12px 10px;box-shadow:0 3px 0 0 var(--c,#b08a3e)}
.door:hover{transform:translateY(2px);box-shadow:0 1px 0 0 var(--c,#b08a3e)}
.door-label{font-size:.72rem;font-weight:800;color:var(--c,#b08a3e)}
.door strong{font-size:.92rem;line-height:1.35}
.door span:last-child{font-size:.78rem;color:#6a7788;line-height:1.5}
.door-protect{--c:#9d2933;background:#fdeced}
.door-tired{--c:#c8643c;background:#fdf0ea}
.door-ai{--c:#6a4ea3;background:#f3edff}
.door-money{--c:#2b8a8a;background:#e8f6f6}
.weekly-pick{margin-top:12px;background:#fff8e1;border:1px solid #f6d98b;border-radius:10px;padding:10px 12px;font-size:.88rem}
.weekly-pick .wp-label{font-size:.72rem;font-weight:800;color:#92400e;margin-right:8px}
.weekly-pick a{font-weight:800;color:#1a6e8e;text-decoration:none}
.today-do{background:#fff8e1;border-left:4px solid #b08a3e;padding:10px 14px;border-radius:8px;margin:0 0 14px}
.check-quiz{background:#f4f7fb;border:1px solid #d7e0ec;border-radius:10px;padding:14px 16px;margin:14px 0}
.check-quiz-q{margin:0 0 8px;color:#0f2545}
.check-quiz-choices{display:flex;flex-direction:column;gap:7px}
.check-quiz-choices button{text-align:left;font:inherit;padding:8px 10px;border-radius:8px;border:1px solid #d7e0ec;background:#fff;cursor:pointer}
.check-quiz-choices button:hover{background:#eef3f7}
.check-quiz-choices button.is-correct{border-color:#2f7a5c;background:#eef6f2}
.check-quiz-choices button.is-wrong{border-color:#9d2933;background:#fdeced}
.check-quiz-result{margin:8px 0 0;font-size:.9rem}
.do-next{background:#eef6f2;border:1px solid #bfe3d3;border-left:4px solid #1a6e8e;border-radius:10px;padding:14px 16px;margin:14px 0}
.do-next h2{margin:0 0 6px;font-size:1.02rem;border:0;padding:0;color:#1a6e8e}
.do-next p{margin:0 0 6px}
.do-next-link{display:inline-block;margin-top:4px;background:#1a6e8e;color:#fff;font-weight:800;text-decoration:none;border-radius:8px;padding:8px 12px}
.do-next-more{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.do-next-more a{color:#1a6e8e;font-size:.86rem}
@media(max-width:760px){.door-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.door-grid{grid-template-columns:1fr}}
/* 画像に width/height 属性が付いたため（2026-09-26 画像別ファイル化）、縦横比を保つ */
.intro img,.chara img{height:auto}