.aptitude-page{--ink:#12233f;--blue:#2157d8;--sky:#eaf2ff;--orange:#ff7a2f;--green:#16845b;max-width:1180px;color:var(--ink);margin:auto;padding:48px 24px 72px}.aptitude-intro{color:#fff;background:linear-gradient(135deg,#10254e 0%,#214fbd 65%,#3b79e9 100%);border-radius:28px;grid-template-columns:1.5fr .65fr;align-items:end;gap:34px;padding:34px;display:grid;position:relative;overflow:hidden;box-shadow:0 20px 55px #1c41822e}.aptitude-intro:after{content:"?";color:#fff0;-webkit-text-stroke:2px #ffffff18;font-size:280px;font-weight:900;line-height:1;position:absolute;top:-65px;right:34%}.class-chip{background:var(--orange);letter-spacing:.08em;border-radius:8px;padding:7px 12px;font-weight:900;display:inline-block}.aptitude-intro p{color:#dfe9ff;letter-spacing:.04em;margin:12px 0 0;font-weight:700}.aptitude-intro h1{margin:14px 0;font-size:clamp(2.8rem,7vw,5rem);line-height:.95}.aptitude-intro .intro-copy{letter-spacing:0;max-width:650px;font-size:1.05rem;font-weight:500;line-height:1.65}.score-card{color:var(--ink);z-index:1;background:#fff;border-radius:20px;padding:25px;position:relative}.score-card small{text-transform:uppercase;color:#60708d;font-weight:800}.score-card strong{color:var(--blue);margin-top:5px;font-size:3rem;display:block}.score-card strong span{color:var(--ink);font-size:1rem}.score-card p{color:#60708d;margin:3px 0 18px}.score-card>div{background:#e7ecf5;border-radius:9px;height:9px;overflow:hidden}.score-card i{background:var(--orange);height:100%;transition:width .3s;display:block}.quiz-tabs{grid-template-columns:repeat(4,1fr);gap:12px;margin:24px 0;display:grid}.quiz-tabs button{text-align:left;color:var(--ink);cursor:pointer;background:#fff;border:1px solid #d8e0ec;border-radius:14px;padding:16px 42px 14px 16px;font-size:.96rem;font-weight:850;position:relative}.quiz-tabs button span{color:#6c7890;text-transform:uppercase;margin-bottom:4px;font-size:.7rem;display:block}.quiz-tabs button b{background:#eef2f8;border-radius:99px;padding:5px 8px;font-size:.72rem;position:absolute;top:18px;right:13px}.quiz-tabs button.active{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 8px 22px #2157d833}.quiz-tabs button.active span{color:#d9e5ff}.quiz-tabs button.active b{background:#ffffff24}.quiz-shell{background:#f5f8fd;border:1px solid #dce4f1;border-radius:24px;padding:28px}.question-top{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.question-top span{text-transform:uppercase;color:var(--orange);font-size:.76rem;font-weight:900}.question-top h2{margin:3px 0 0;font-size:1.35rem}.question-top p{color:#66738a}.question-card{background:#fff;border-radius:18px;padding:clamp(22px,4vw,40px);box-shadow:0 8px 28px #17315e0c}.question-card h3{margin:0 0 24px;font-size:clamp(1.25rem,3vw,1.75rem);line-height:1.35}.source-note{color:#76530b;background:#fff4d8;border:1px solid #f2d486;border-radius:10px;margin:-10px 0 18px;padding:10px 13px;font-weight:700}.options{grid-template-columns:1fr 1fr;gap:13px;display:grid}.options button{min-height:58px;color:var(--ink);text-align:left;cursor:pointer;background:#fff;border:2px solid #e0e6f0;border-radius:13px;align-items:center;gap:12px;padding:10px 16px;font-size:1rem;font-weight:750;display:flex}.options button:hover:not(:disabled){border-color:var(--blue);background:#f5f8ff;transform:translateY(-1px)}.options button span{color:#516179;background:#edf2fa;border-radius:9px;flex:0 0 34px;place-items:center;height:34px;font-weight:900;display:grid}.options button b{margin-left:auto;font-size:1.45rem}.options button.correct{color:#106d4b;background:#eaf9f2;border-color:#38a87e}.options button.correct span{color:#fff;background:#16845b}.options button.wrong{color:#9e3030;background:#fff0f0;border-color:#e06666}.options button.wrong span{color:#fff;background:#d54848}.explanation{border-left:5px solid;border-radius:15px;margin-top:22px;padding:20px}.explanation.success{border-color:var(--green);background:#ecfaf4}.explanation.retry{background:#fff8e7;border-color:#e4a51c}.explanation h4{margin:0 0 14px;font-size:1.1rem}.explanation>div{border-top:1px solid #18305318;margin-top:12px;padding-top:13px}.explanation span{letter-spacing:.08em;color:#53637c;font-size:.72rem;font-weight:950;display:block}.explanation p{margin:5px 0 0;line-height:1.6}.explanation .shortcut{background:#fff;border:1px dashed #f0a839;border-radius:10px;padding:13px}.quiz-actions{justify-content:space-between;margin-top:18px;display:flex}.quiz-actions button{color:var(--ink);cursor:pointer;background:#fff;border:1px solid #cfd8e7;border-radius:10px;padding:12px 18px;font-weight:850}.quiz-actions .next{background:var(--blue);border-color:var(--blue);color:#fff}.quiz-actions button:disabled{opacity:.4;cursor:not-allowed}.teacher-tip{color:#fff;background:#111f38;border-radius:24px;margin-top:38px;padding:32px}.teacher-tip>span{color:#ff9b5f;letter-spacing:.09em;font-size:.76rem;font-weight:900}.teacher-tip h2{margin:8px 0 24px;font-size:clamp(1.6rem,4vw,2.35rem)}.teacher-tip>div{grid-template-columns:repeat(4,1fr);gap:18px;display:grid}.teacher-tip article{border-top:2px solid #ffffff2b;padding-top:16px}.teacher-tip article>b{color:#72a0ff;font-size:1.7rem}.teacher-tip h3{margin:5px 0}.teacher-tip p{color:#cdd8eb;margin:0;line-height:1.55}.quality-note{color:#67758c;text-align:center;max-width:850px;margin:22px auto 0;font-size:.9rem;line-height:1.6}@media (width<=780px){.aptitude-page{padding:24px 14px 50px}.aptitude-intro{grid-template-columns:1fr;padding:25px}.score-card{padding:18px}.quiz-tabs{padding-bottom:5px;display:flex;overflow-x:auto}.quiz-tabs button{min-width:190px}.quiz-shell{padding:15px}.question-top{align-items:flex-end}.question-top p{font-size:.82rem}.options{grid-template-columns:1fr}.teacher-tip>div{grid-template-columns:1fr 1fr}.aptitude-intro h1{font-size:2.85rem}}@media (width<=460px){.teacher-tip>div{grid-template-columns:1fr}.quiz-actions button{padding:11px 12px}.question-card{padding:20px 15px}.options button{font-size:.94rem}}.explanation.source-check{background:#eef5ff;border-color:#4d78c9}.skills-strip{background:#eef4ff;border:1px solid #d8e4f7;border-radius:16px;flex-wrap:wrap;justify-content:center;gap:10px;margin:24px auto 0;padding:18px;display:flex}.skills-strip b{text-align:center;color:#173e8f;width:100%}.skills-strip span{color:#41516c;background:#fff;border:1px solid #d5dfef;border-radius:999px;padding:8px 12px;font-size:.9rem;font-weight:750}.generation-guide{background:linear-gradient(135deg,#fff7e8,#eef5ff);border:1px solid #e3dccd;border-radius:18px;grid-template-columns:repeat(4,1fr);gap:10px;margin:0 0 24px;padding:18px;display:grid}.generation-guide div{background:#fff;border:1px solid #dce4ef;border-radius:12px;flex-direction:column;gap:5px;padding:14px;display:flex}.generation-guide b{color:#2157d8}.generation-guide span{color:#526079;font-size:.9rem;line-height:1.45}.written-answer{color:#17345f;background:#fff;border:1px solid #d9e3ef;border-radius:10px;margin:0 0 14px;padding:11px 13px}.blood-skills{background:#fff6e8;border-color:#f0d7b1}@media (width<=780px){.generation-guide{grid-template-columns:1fr 1fr}}@media (width<=460px){.generation-guide{grid-template-columns:1fr}}.blood-method{background:linear-gradient(135deg,#fff8e9,#edf5ff);border:1px solid #dfdfd9;border-radius:20px;margin:0 0 24px;padding:22px}.method-title>span{letter-spacing:.08em;color:#cc641f;font-size:.76rem;font-weight:900}.method-title h2{margin:5px 0;font-size:1.7rem}.method-title p{color:#53627a;margin:0;line-height:1.55}.blood-method ol{grid-template-columns:repeat(5,1fr);gap:10px;margin:18px 0;padding:0;list-style:none;display:grid}.blood-method li{background:#fff;border:1px solid #dce4ef;border-radius:12px;flex-direction:column;gap:6px;padding:13px;display:flex}.blood-method li b{color:#194dad}.blood-method li span{color:#526079;font-size:.88rem;line-height:1.45}.blood-method .generation-guide{background:0 0;border:0;margin:0;padding:0}.method-sources{color:#65728a;text-align:center;margin:15px 0 0;font-size:.82rem}.method-sources a{color:#2157d8;font-weight:800}@media (width<=900px){.blood-method ol{grid-template-columns:1fr 1fr}}@media (width<=460px){.blood-method ol{grid-template-columns:1fr}}.question-card h3{white-space:pre-line}.logical-skills{background:#eefbf5;border-color:#ccebdc}