.mr6-simple-choice{box-sizing:border-box;max-width:1080px;margin:20px auto 36px;padding:clamp(24px,5vw,56px);border:1px solid #d7e3f0;border-radius:24px;background:#f7fbff;color:#15375f}
.mr6-simple-choice>span{display:block;font-size:12px;line-height:1.6;font-weight:800;letter-spacing:.12em;color:#996000}
.mr6-simple-choice h2{font-size:clamp(26px,3vw,42px);line-height:1.2;margin:12px 0 28px;color:#15375f}
.mr6-simple-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.mr6-simple-choice-grid a{box-sizing:border-box;min-width:0;display:flex;flex-direction:column;justify-content:space-between;gap:28px;padding:28px;border:1px solid #d7e3f0;border-radius:18px;background:#fff;color:#15375f!important;text-decoration:none!important;transition:border-color .15s,background .15s}
.mr6-simple-choice-grid a:hover{background:#fff9eb;border-color:#d5a950}
.mr6-simple-choice-grid a:focus-visible{outline:3px solid #173f72;outline-offset:4px}
.mr6-simple-choice-grid strong{font-size:clamp(24px,3vw,32px);line-height:1.25;overflow-wrap:anywhere}
.mr6-simple-choice-grid b{font-size:16px;line-height:1.5;font-weight:700}
.mr6-choice-back{max-width:1120px;margin:16px auto 24px;font-size:16px}
.mr6-choice-back a{display:inline-block;padding:10px 0;color:#173f72;font-weight:700;text-decoration:none}
@media(max-width:600px){.mr6-simple-choice{margin:12px 0 24px;border-radius:18px;padding:22px}.mr6-simple-choice-grid{grid-template-columns:1fr;gap:14px}.mr6-simple-choice-grid a{padding:22px;gap:22px}.mr6-simple-choice h2{margin-bottom:22px}.mr6-choice-back{font-size:14px}}
.mr6-choice-screen .tutor-course-details-content>h2:first-child,.mr6-compact-science .tutor-course-details-content>h2:first-child,.mr6-compact-course .tutor-course-details-content>h2:first-child{display:none}
.mr6-revision-caution{font-size:14px;line-height:1.6;margin:0 0 18px;padding:14px 18px;background:#fff9eb;border:1px solid #ead6ad;border-radius:12px;color:#705218}
.mr6-compact-revision{max-width:1080px;margin:12px auto 36px;color:#15375f}
.mr6-revision-head{padding:clamp(24px,4vw,40px);border-radius:22px;background:linear-gradient(120deg,#f4f8fc,#fff9e9);border:1px solid #d7e3f0;margin-bottom:22px}
.mr6-revision-back{display:block;width:fit-content;margin-bottom:24px;font-size:15px;font-weight:700;color:#173f72!important;text-decoration:none!important}
.mr6-revision-head>span{font-size:12px;font-weight:800;letter-spacing:.12em;color:#996000}
.mr6-revision-head h2{font-size:clamp(28px,3.8vw,44px);line-height:1.2;margin:10px 0;color:#15375f}
.mr6-revision-head p{font-size:17px;line-height:1.5;margin:0 0 20px;color:#60738e}
.mr6-revision-stats{display:flex;flex-wrap:wrap;gap:10px}
.mr6-revision-stats span{font-size:13px;font-weight:700;background:#fff;border:1px solid #d7e3f0;padding:6px 12px;border-radius:30px}
.mr6-revision-fold{background:white;border:1px solid #d7e3f0;border-radius:18px;margin:14px 0;overflow:hidden}
.mr6-revision-fold>summary{list-style:none;display:flex;align-items:center;gap:16px;padding:24px;cursor:pointer;color:#15375f}
.mr6-revision-fold>summary::-webkit-details-marker,.mr6-revision-session>summary::-webkit-details-marker{display:none}
.mr6-revision-fold>summary>span{flex:1;min-width:0;display:grid;gap:5px}
.mr6-revision-fold>summary strong{font-size:22px;line-height:1.25}
.mr6-revision-fold>summary small{font-size:14px;line-height:1.45;color:#60738e}
.mr6-revision-fold>summary>b{font-size:13px;white-space:nowrap;font-weight:600;color:#60738e}
.mr6-revision-fold>summary::after,.mr6-revision-session>summary::after{content:'+';font-size:24px;color:#996000;font-weight:700}
.mr6-revision-fold[open]>summary::after,.mr6-revision-session[open]>summary::after{content:'−'}
.mr6-revision-fold>summary:focus-visible,.mr6-revision-session>summary:focus-visible{outline:3px solid #173f72;outline-offset:-4px}
.mr6-revision-fold[open]>summary{border-bottom:1px solid #e1e9f2;background:#f7fbff}
.mr6-revision-fold-body{padding:20px}
.mr6-revision-topic-links,.mr6-revision-paper-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.mr6-revision-topic-links a,.mr6-revision-paper-links a{min-width:0;display:grid;gap:7px;padding:16px;border:1px solid #d7e3f0;border-radius:12px;text-decoration:none!important;color:#15375f!important;background:#fff}
.mr6-revision-topic-links strong{font-size:16px;line-height:1.35;overflow-wrap:anywhere}
.mr6-revision-topic-links small,.mr6-revision-paper-links small{font-size:13px;line-height:1.4;color:#60738e}
.mr6-revision-topic-links a:hover,.mr6-revision-paper-links a:hover{background:#fff9eb;border-color:#d5a950}
.mr6-revision-topic-links a:focus-visible,.mr6-revision-paper-links a:focus-visible{outline:3px solid #173f72;outline-offset:2px}
.mr6-revision-session{border:1px solid #d7e3f0;border-radius:12px;margin-bottom:12px;overflow:hidden}
.mr6-revision-session:last-child{margin-bottom:0}
.mr6-revision-session>summary{list-style:none;display:flex;gap:14px;align-items:center;padding:16px 18px;background:#f7fbff;cursor:pointer}
.mr6-revision-session>summary strong{flex:1;font-size:17px}
.mr6-revision-session>summary>span{font-size:13px;color:#60738e}
.mr6-revision-session .mr6-revision-paper-links{padding:14px;grid-template-columns:repeat(4,minmax(0,1fr))}
.mr6-revision-paper-links strong{font-size:18px}
.mr6-revision-note{font-size:13px;color:#60738e;margin:0;padding:0 16px 16px}
@media(max-width:850px){.mr6-revision-topic-links{grid-template-columns:repeat(2,minmax(0,1fr))}.mr6-revision-session .mr6-revision-paper-links{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:600px){.mr6-revision-head{padding:22px;border-radius:18px}.mr6-revision-head p{font-size:15px}.mr6-revision-fold>summary{padding:18px;gap:10px}.mr6-revision-fold>summary strong{font-size:19px}.mr6-revision-fold>summary small{font-size:13px}.mr6-revision-fold>summary>b{display:none}.mr6-revision-fold-body{padding:12px}.mr6-revision-topic-links{grid-template-columns:1fr}.mr6-revision-session .mr6-revision-paper-links{grid-template-columns:repeat(2,minmax(0,1fr))}.mr6-revision-paper-links a{padding:12px}.mr6-revision-back{margin-bottom:20px}}