.aier-home{--aier-navy:#0c1730;--aier-blue:#36b6ea;--aier-blue-2:#347df0;--aier-orange:#ff7a00;--aier-text:#172b4d;--aier-muted:#6f829f;--aier-line:#e5edf5;--aier-soft:#f7fafd;background:#fff;color:var(--aier-text);min-height:100vh;overflow-x:hidden}.aier-home *,.aier-home :after,.aier-home :before{box-sizing:border-box}.aier-container{margin:0 auto;width:min(1160px,calc(100% - 48px))}.aier-header{background:#fff;border-bottom:1px solid var(--aier-line);height:76px;position:relative;z-index:20}.aier-header,.aier-nav{align-items:center;display:flex}.aier-nav{justify-content:space-between}.aier-brand{align-items:center;color:var(--aier-navy);display:inline-flex;gap:11px;text-decoration:none}.aier-brand-mark{display:grid;height:29px;place-items:center;width:22px}.aier-brand-mark svg{height:100%;width:100%}.aier-brand-mark path{fill:var(--aier-orange)}.aier-brand strong{display:block;font-size:20px;font-weight:850;line-height:1}.aier-brand small{color:#8ba0bb;display:block;font-size:11px;font-weight:600;margin-top:4px}.aier-nav-links{align-items:center;color:#71849f;display:flex;font-size:14px;font-weight:700;gap:28px}.aier-nav-links a{color:inherit;text-decoration:none;transition:color .2s ease,transform .2s ease}.aier-nav-links a:hover{color:var(--aier-navy);transform:translateY(-1px)}.aier-nav-links .aier-nav-cta{background:var(--aier-blue);border-radius:9px;color:#fff;padding:12px 19px}.aier-nav-links .aier-nav-cta:hover{box-shadow:0 10px 24px #288cd238;color:#fff;transform:translateY(-2px)}.aier-hero{min-height:600px;overflow:hidden;padding:92px 0 86px;position:relative;text-align:center}.aier-hero-content{position:relative;z-index:2}.aier-hero-glow{border-radius:50%;filter:blur(2px);pointer-events:none;position:absolute}.aier-glow-one{animation:aier-drift-one 9s ease-in-out infinite;background:radial-gradient(circle,#36b6ea29,#36b6ea00 68%);height:310px;left:-120px;top:35px;width:310px}.aier-glow-two{animation:aier-drift-two 11s ease-in-out infinite;background:radial-gradient(circle,#347df021,#347df000 68%);bottom:-140px;height:360px;right:-140px;width:360px}.aier-pill{animation:aier-fade-up .7s ease both;background:#f3fff7;border:1px solid #b8edcc;border-radius:999px;color:#079348;display:inline-block;font-size:12px;font-weight:850;padding:8px 14px}.aier-hero h1{animation:aier-fade-up .75s ease .08s both;color:var(--aier-navy);font-size:clamp(42px,5.3vw,62px);letter-spacing:-2.7px;line-height:1.04;margin:28px auto 18px;max-width:850px}.aier-hero h1 span{color:var(--aier-blue-2)}.aier-hero p{animation:aier-fade-up .75s ease .16s both;color:var(--aier-muted);font-size:18px;line-height:1.65;margin:0 auto 30px;max-width:700px}.aier-actions{animation:aier-fade-up .75s ease .24s both;display:flex;gap:12px;justify-content:center}.aier-primary,.aier-secondary{border-radius:10px;display:inline-block;font-weight:850;padding:15px 23px;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}.aier-primary{background:var(--aier-blue);color:#fff}.aier-primary:hover{box-shadow:0 10px 24px #288cd238;color:#fff;transform:translateY(-2px)}.aier-secondary{background:#fff;border:1px solid #d9e3ef;color:var(--aier-navy)}.aier-secondary:hover{box-shadow:0 8px 20px #14284614;color:var(--aier-navy);transform:translateY(-2px)}.aier-trust{animation:aier-fade-up .75s ease .32s both;color:#9aaac0;font-size:12px;margin-top:27px}.aier-section{padding:70px 0}.aier-soft{background:var(--aier-soft)}.aier-section-head{margin-bottom:35px;text-align:center}.aier-kicker{color:#7e94b1;font-size:12px;font-weight:850;letter-spacing:1.6px;text-transform:uppercase}.aier-section-head h2{color:var(--aier-navy);font-size:clamp(30px,3.2vw,37px);letter-spacing:-1.1px;line-height:1.15;margin:8px 0}.aier-section-head p{color:var(--aier-muted);margin:0}.aier-paths{grid-gap:15px;display:grid;gap:15px;grid-template-columns:repeat(4,1fr)}.aier-path{background:#fff;border:1px solid var(--aier-line);border-radius:14px;color:inherit;min-height:175px;padding:23px;position:relative;text-decoration:none;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}.aier-path:hover{border-color:#c7dced;box-shadow:0 14px 34px #142b4d17;color:inherit;transform:translateY(-5px)}.aier-tag{background:#fff2e6;border-radius:6px;color:#d65d00;display:inline-block;font-size:11px;font-weight:850;padding:5px 8px}.aier-path h3{color:var(--aier-navy);font-size:18px;margin:17px 0 6px}.aier-path p{color:var(--aier-muted);font-size:13px;line-height:1.5;margin:0}.aier-card-actions{display:flex;gap:8px;margin-top:16px}.aier-card-notes,.aier-card-practice{border-radius:8px;cursor:pointer;flex:1 1;font-size:13px;font-weight:800;padding:10px 12px;transition:transform .2s ease,box-shadow .2s ease;white-space:nowrap}.aier-card-actions .aier-card-practice:only-child{flex:0 0 auto;min-width:120px}.aier-card-practice{background:var(--aier-blue);border:none;color:#fff}.aier-card-practice:hover{box-shadow:0 8px 18px #288cd238;transform:translateY(-2px)}.aier-card-notes{background:#fff;border:1px solid #d9e3ef;color:var(--aier-navy)}.aier-card-notes:hover{box-shadow:0 6px 16px #14284614;transform:translateY(-2px)}.aier-feature{background:var(--aier-navy);color:#fff;overflow:hidden;padding:80px 0;position:relative}.aier-feature:after{animation:aier-pulse 7s ease-in-out infinite;background:radial-gradient(circle,#36b6ea21,#0000 68%);border-radius:50%;content:"";height:420px;position:absolute;right:-180px;top:-180px;width:420px}.aier-feature-grid{grid-gap:65px;align-items:center;display:grid;gap:65px;grid-template-columns:1fr 1fr;position:relative;z-index:1}.aier-feature-copy h2{color:#fff;font-size:clamp(35px,4vw,44px);letter-spacing:-1.4px;line-height:1.1;margin:9px 0 18px;max-width:620px}.aier-feature-copy>p{color:#b8cae0;line-height:1.7;max-width:620px}.aier-feature-items{grid-gap:14px;display:grid;gap:14px;margin-top:25px}.aier-feature-item{align-items:flex-start;display:flex;gap:12px}.aier-feature-item>span:last-child{grid-gap:2px;display:grid;gap:2px}.aier-feature-item strong{font-size:15px}.aier-feature-item small{color:#9fb4cf;font-size:13px;line-height:1.45}.aier-check{animation:aier-pop .55s ease both;background:#1e91dc;border-radius:50%;display:grid;flex:none;height:25px;place-items:center;width:25px}.aier-feature-item:nth-child(2) .aier-check{animation-delay:.12s}.aier-feature-item:nth-child(3) .aier-check{animation-delay:.24s}.aier-practice-preview{animation:aier-float 5s ease-in-out infinite;background:#132541;border:1px solid #2a4567;border-radius:18px;padding:24px}.aier-preview-top{color:#bcd0e7;display:flex;font-size:12px;justify-content:space-between}.aier-progress{background:#263d5d;border-radius:999px;height:7px;margin:17px 0 22px;overflow:hidden}.aier-progress span{animation:aier-progress 1.4s ease .5s both;background:var(--aier-blue);border-radius:inherit;display:block;height:100%;width:66%}.aier-question{animation:aier-card-in .8s ease .35s both;background:#fff;border-radius:12px;color:var(--aier-navy);padding:20px}.aier-question small{color:#7890ad;font-weight:800}.aier-question h3{font-size:16px;line-height:1.45;margin:8px 0 15px}.aier-option{border:1px solid #e0e7ef;border-radius:8px;color:#526a87;font-size:13px;margin-top:8px;padding:10px 12px;transition:transform .18s ease,background .18s ease,border-color .18s ease}.aier-option:hover{background:#f8fbfe;border-color:#b8d8eb;transform:translateX(4px)}.aier-benefits{grid-gap:18px;display:grid;gap:18px;grid-template-columns:repeat(3,1fr)}.aier-benefit{border:1px solid var(--aier-line);border-radius:14px;padding:24px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}.aier-benefit:hover{border-color:#c7dced;box-shadow:0 14px 34px #142b4d17;transform:translateY(-5px)}.aier-benefit>span{color:var(--aier-orange);font-size:14px;font-weight:900}.aier-benefit h3{color:var(--aier-navy);margin:12px 0 7px}.aier-benefit p{color:var(--aier-muted);font-size:13px;line-height:1.55;margin:0}.aier-final{padding:82px 0;text-align:center}.aier-final h2{color:var(--aier-navy);font-size:clamp(32px,3.5vw,40px);margin:0 0 12px}.aier-final p{color:var(--aier-muted);line-height:1.6;margin:0 auto 25px;max-width:620px}.aier-footer{border-top:1px solid var(--aier-line);color:#8a9bb1;font-size:12px;padding:25px 0}.aier-footer-inner{display:flex;gap:20px;justify-content:space-between}.aier-footer-link{background:none;border:none;color:#8a9bb1;cursor:pointer;font-size:12px;padding:0;text-decoration:underline}.aier-footer-link:hover{color:var(--aier-blue-2)}.aier-reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}.aier-reveal.aier-visible{opacity:1;transform:none}@keyframes aier-fade-up{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}@keyframes aier-drift-one{0%,to{transform:translate(0)}50%{transform:translate(45px,22px)}}@keyframes aier-drift-two{0%,to{transform:translate(0)}50%{transform:translate(-35px,-28px)}}@keyframes aier-float{0%,to{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-8px) rotate(.25deg)}}@keyframes aier-pulse{0%,to{opacity:.65;transform:scale(1)}50%{opacity:1;transform:scale(1.12)}}@keyframes aier-progress{0%{width:0}to{width:66%}}@keyframes aier-card-in{0%{opacity:0;transform:translateY(12px) scale(.985)}to{opacity:1;transform:none}}@keyframes aier-pop{0%{opacity:0;transform:scale(.7)}to{opacity:1;transform:scale(1)}}@media (max-width:850px){.aier-nav-links{display:none}.aier-hero{padding:65px 0}.aier-paths{grid-template-columns:1fr 1fr}.aier-feature-grid{gap:38px}.aier-benefits,.aier-feature-grid{grid-template-columns:1fr}}@media (max-width:520px){.aier-container{width:calc(100% - 28px)}.aier-hero h1{font-size:38px;letter-spacing:-1.7px}.aier-actions{flex-direction:column}.aier-paths{grid-template-columns:1fr}.aier-footer-inner{flex-direction:column}}@media (prefers-reduced-motion:reduce){.aier-home *,.aier-home :after,.aier-home :before{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}.aier-reveal{opacity:1;transform:none}}.aier-home button{font:inherit}.aier-nav-link-button{background:#0000;border:0;color:inherit;cursor:pointer;font-weight:700;padding:0;transition:color .2s ease,transform .2s ease}.aier-nav-link-button:hover{color:var(--aier-navy);transform:translateY(-1px)}.aier-nav-cta,.aier-path,.aier-primary,.aier-secondary{cursor:pointer}.aier-home .aier-primary,.aier-home .aier-secondary{border:0;font-weight:850}.aier-home .aier-path{border:1px solid var(--aier-line);text-align:left;width:100%}.quiz-page{margin:0 auto;max-width:820px;min-height:100vh;padding:0 1rem 4rem}.back-link{background:none;color:var(--muted);font-size:.85rem;font-weight:500;padding:.4rem 0;transition:color .15s}.back-link:hover{color:var(--text)}.section-select{padding-top:1.5rem}.qp-header{margin-bottom:1.5rem}.qp-title{font-size:clamp(1.3rem,3vw,1.8rem);font-weight:800;letter-spacing:-.02em;margin:.5rem 0 .25rem}.qp-meta{color:var(--muted);font-size:.85rem}.mode-cards{margin-bottom:1.5rem}.mode-card{align-items:center;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;display:flex;gap:1rem;padding:1.2rem 1.5rem;transition:border-color .15s,background .15s}.mode-card-all{border-color:var(--accent)}.mode-card:hover{background:var(--bg3)}.mode-icon{flex-shrink:0;font-size:1.5rem}.mode-info{flex:1 1}.mode-name{font-size:1rem;font-weight:700}.mode-desc{color:var(--muted);font-size:.82rem;margin-top:.2rem}.mode-arrow{color:var(--accent);font-size:1.2rem;font-weight:700}.sections-heading{color:var(--muted);font-size:.8rem;font-weight:600;letter-spacing:.08em;margin-bottom:.75rem;text-transform:uppercase}.sections-list{display:flex;flex-direction:column;gap:.5rem}.section-row{align-items:center;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;display:flex;gap:1rem;padding:1rem 1.25rem;transition:border-color .15s,background .15s}.section-row:hover{background:var(--bg3);border-color:var(--sec-color)}.section-dot{background:var(--sec-color);border-radius:50%;flex-shrink:0;height:8px;width:8px}.section-row-info{flex:1 1;min-width:0}.section-row-title{font-size:.9rem;font-weight:600}.section-row-desc{color:var(--muted);font-size:.75rem;margin-top:.15rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.section-row-count{color:var(--muted);flex-shrink:0;font-size:.75rem;font-weight:700}.quiz-topbar{align-items:center;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;margin-bottom:0;padding:1rem 0 .75rem}.quiz-topbar-right{align-items:center;color:var(--muted);display:flex;font-size:.82rem;font-weight:600;gap:1rem}.timer{color:var(--warn)}.q-counter{color:var(--text)}.progress-track{background:var(--bg3);height:3px;margin-bottom:2rem}.progress-fill{background:linear-gradient(90deg,var(--accent),var(--accent2));height:100%;transition:width .3s ease}.resume-banner{align-items:center;background:var(--bg3);border:1px solid var(--accent);border-radius:8px;color:var(--text);display:flex;font-size:.85rem;gap:12px;justify-content:space-between;margin-bottom:1.5rem;padding:10px 14px}.resume-banner-close{background:none;border:none;color:var(--muted);cursor:pointer;font-size:1.1rem;line-height:1;padding:0 4px}.resume-banner-close:hover{color:var(--text)}.question-wrap{padding:0}.section-label{color:var(--muted);font-size:.72rem;font-weight:700;letter-spacing:.08em;margin-bottom:.75rem;text-transform:uppercase}.question-text{color:var(--text);font-size:clamp(1rem,2.5vw,1.2rem);font-weight:600;line-height:1.55;margin-bottom:1.5rem}.options-list{display:flex;flex-direction:column;gap:.6rem;margin-bottom:1.5rem}.option{align-items:flex-start;background:var(--bg2);border:1.5px solid var(--border);border-radius:var(--radius-sm);color:var(--text);display:flex;font-size:.9rem;gap:.75rem;line-height:1.5;padding:.9rem 1rem;text-align:left;transition:border-color .12s,background .12s}.option:hover:not(.option-correct):not(.option-wrong){background:var(--bg3);border-color:var(--accent)}.option-selected{background:#818cf814;border-color:var(--accent2)}.option-correct{background:#4ade8014!important;border-color:var(--correct)!important}.option-wrong{background:#f8717114!important;border-color:var(--wrong)!important}.opt-letter-badge{align-items:center;background:var(--bg3);border-radius:6px;color:var(--muted);display:flex;font-size:.72rem;font-weight:700;height:26px;justify-content:center;min-width:26px;width:26px}.option-selected .opt-letter-badge{background:var(--accent2);color:#fff}.option-correct .opt-letter-badge{background:var(--correct);color:#0f172a}.option-wrong .opt-letter-badge{background:var(--wrong);color:#0f172a}.opt-text{flex:1 1}.explanation-box{border-radius:var(--radius-sm);font-size:.88rem;line-height:1.65;margin-bottom:1.5rem;padding:1.25rem}.explain-correct{background:#4ade8014;border:1px solid #4ade8040}.explain-wrong{background:#f871710f;border:1px solid #f8717133}.explain-verdict{font-size:.82rem;font-weight:700;letter-spacing:.02em;margin-bottom:.6rem}.explain-correct .explain-verdict{color:var(--correct)}.explain-wrong .explain-verdict{color:var(--wrong)}.quiz-actions{display:flex;flex-wrap:wrap;gap:.75rem}.btn{border-radius:var(--radius-sm);font-size:.9rem;font-weight:700;padding:.75rem 1.5rem;transition:opacity .15s,transform .1s}.btn:hover:not(.btn-disabled){opacity:.88;transform:scale(1.01)}.btn-primary{background:var(--accent);color:#0f172a}.btn-secondary{background:var(--bg3);color:var(--text)}.btn-ghost{background:none;color:var(--muted);padding:.75rem .5rem}.btn-ghost:hover{color:var(--text)}.btn-disabled{cursor:not-allowed;opacity:.4;transform:none!important}.results-view{padding-top:1.5rem}.results-banner{border-radius:var(--radius);margin-bottom:1.5rem;padding:2.5rem 2rem;text-align:center}.pass{background:#4ade801a;border:1px solid #4ade804d}.fail{background:#f8717114;border:1px solid #f8717133}.results-score{font-size:4rem;font-weight:900;letter-spacing:-.04em;line-height:1;margin-bottom:.5rem}.pass .results-score{color:var(--correct)}.fail .results-score{color:var(--wrong)}.results-verdict{font-size:1.3rem;font-weight:700;margin-bottom:.4rem}.results-sub{color:var(--muted);font-size:.85rem}.breakdown-title{font-size:1rem;font-weight:700;margin-bottom:1rem;padding-top:.5rem}.results-breakdown{display:flex;flex-direction:column;gap:1rem;margin-bottom:1.5rem}.review-item{background:var(--bg2);border-left:3px solid var(--border);border-radius:var(--radius-sm);padding:1.1rem}.review-correct{border-left-color:var(--correct)}.review-wrong{border-left-color:var(--wrong)}.review-q-header{gap:.5rem;margin-bottom:.5rem}.review-badge,.review-q-header{align-items:center;display:flex}.review-badge{border-radius:50%;flex-shrink:0;font-size:.7rem;font-weight:900;height:20px;justify-content:center;width:20px}.badge-correct{background:var(--correct);color:#0f172a}.badge-wrong{background:var(--wrong);color:#0f172a}.review-q-num{color:var(--muted);font-size:.72rem;font-weight:600}.review-q-text{font-size:.9rem;font-weight:600;line-height:1.5;margin-bottom:.75rem}.review-opts{display:flex;flex-direction:column;gap:.35rem;margin-bottom:.75rem}.review-opt{align-items:flex-start;border-radius:5px;color:var(--muted);display:flex;font-size:.82rem;gap:.5rem;padding:.4rem .6rem}.opt-correct{background:#4ade801a;color:var(--correct)}.opt-wrong{background:#f871711a;color:var(--wrong);text-decoration:line-through}.opt-letter{font-weight:700;min-width:18px}.review-explain{background:var(--bg3);border-radius:6px;color:var(--muted);font-size:.8rem;line-height:1.6;padding:.75rem}.explain-label{color:var(--accent);display:block;font-size:.65rem;font-weight:700;letter-spacing:.08em;margin-bottom:.35rem;text-transform:uppercase}.results-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1.5rem}@media (max-width:640px){.quiz-page{padding:0 .75rem 3rem}.quiz-topbar{padding:.75rem 0}.question-text{font-size:.95rem}.option{font-size:.85rem;padding:.75rem .85rem}.results-score{font-size:3rem}.results-actions{flex-direction:column}.results-actions .btn{width:100%}}.study-page{margin:0 auto;max-width:860px;min-height:100vh;padding:0 1rem 4rem}.study-home{padding-top:1.5rem}.study-home-title{font-size:clamp(1.6rem,4vw,2.2rem);font-weight:800;letter-spacing:-.03em;margin:.5rem 0}.study-home-sub{color:var(--muted);font-size:.95rem;line-height:1.65;margin-bottom:2rem;max-width:600px}.study-cards{grid-gap:1.25rem;display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));margin-bottom:2rem}.study-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;overflow:hidden;position:relative;transition:border-color .15s,transform .15s}.study-card:hover{border-color:var(--exam-color);transform:translateY(-2px)}.study-card-color-bar{background:var(--exam-color);height:4px}.study-card-content{padding:1.5rem}.study-card-title{font-size:1rem;font-weight:700;line-height:1.35;margin-bottom:.5rem}.study-card-meta{color:var(--muted);display:flex;font-size:.78rem;gap:.5rem;margin-bottom:1rem}.study-card-traps{background:var(--bg3);border-radius:var(--radius-sm);font-size:.8rem;line-height:1.5;margin-bottom:1rem;padding:.75rem}.trap-preview-label{color:var(--warn);display:block;font-size:.65rem;font-weight:700;letter-spacing:.08em;margin-bottom:.3rem;text-transform:uppercase}.trap-preview-text{color:var(--muted)}.study-card-btn{background:var(--exam-color);border-radius:var(--radius-sm);color:#0f172a;font-size:.85rem;font-weight:700;padding:.6rem 1.1rem;text-align:center;transition:opacity .15s;width:100%}.study-card-btn:hover{opacity:.88}.study-tip{align-items:flex-start;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);display:flex;gap:1rem;padding:1.25rem}.study-tip-icon{flex-shrink:0;font-size:1.4rem}.study-tip p{color:var(--muted);font-size:.88rem;line-height:1.65}.study-tip strong{color:var(--text)}.exam-notes{padding-top:1.5rem}.exam-notes-header{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);border-top:4px solid var(--exam-color);margin:1rem 0 1.5rem;padding:1.5rem}.exam-notes-title{font-size:clamp(1.2rem,3vw,1.6rem);font-weight:800;letter-spacing:-.02em;margin-bottom:1rem}.exam-info-grid{display:flex;flex-wrap:wrap;gap:1.5rem}.exam-info-item{display:flex;flex-direction:column;gap:.15rem}.exam-info-label{color:var(--muted);font-size:.65rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;text-transform:capitalize}.exam-info-val{color:var(--text);font-size:.9rem;font-weight:600}.traps-section{margin-bottom:2rem}.traps-title{align-items:center;display:flex;font-size:1.1rem;font-weight:700;gap:.5rem;margin-bottom:1rem}.traps-grid{grid-gap:.75rem;display:grid;gap:.75rem;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.trap-card{background:#fbbf240f;border:1px solid #fbbf2433;border-radius:var(--radius-sm);color:var(--text);font-size:.84rem;line-height:1.55;padding:.9rem 1rem}.trap-num{color:var(--warn);display:block;font-size:.65rem;font-weight:700;letter-spacing:.08em;margin-bottom:.35rem;text-transform:uppercase}.sections-notes{margin-bottom:2rem}.sections-notes-title{font-size:1.1rem;font-weight:700;margin-bottom:.4rem}.sections-notes-sub{color:var(--muted);font-size:.85rem;margin-bottom:1rem}.sections-notes-list{display:flex;flex-direction:column;gap:.5rem}.section-note{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .15s}.section-note-open{border-color:var(--exam-color)}.section-note-header{align-items:center;background:none;color:var(--text);display:flex;font-size:.95rem;font-weight:600;gap:.75rem;padding:1rem 1.25rem;text-align:left;transition:background .12s;width:100%}.section-note-header:hover{background:var(--bg3)}.section-note-icon{flex-shrink:0;font-size:1.2rem}.section-note-title{flex:1 1}.section-note-arrow{color:var(--muted);font-size:.7rem}.video-btn{align-items:center;background:red;border-radius:4px;color:#fff;display:inline-flex;flex-shrink:0;font-size:.72rem;font-weight:700;gap:.3rem;padding:.25rem .6rem;text-decoration:none;transition:opacity .15s;white-space:nowrap}.video-btn:hover{opacity:.85;text-decoration:none}.section-note-body{border-top:1px solid var(--border);display:flex;flex-direction:column;gap:1rem;padding:1rem 1.25rem 1.25rem}.key-point{background:var(--bg3);border-left:3px solid var(--exam-color);border-radius:var(--radius-sm);padding:.9rem}.key-point-heading{color:var(--text);font-size:.82rem;font-weight:700;letter-spacing:.01em;margin-bottom:.4rem}.key-point-body{color:var(--muted);font-size:.83rem;line-height:1.65}.study-cta{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);margin-top:1rem;padding:1.5rem;text-align:center}.study-cta h3{font-size:1rem;font-weight:700;margin-bottom:.4rem}.study-cta p{color:var(--muted);font-size:.85rem}.exam-badge-study{border-radius:4px;color:#fff;display:inline-block;font-size:.65rem;font-weight:700;letter-spacing:.1em;margin-bottom:.75rem;padding:.2rem .6rem;text-transform:uppercase}@media (max-width:640px){.study-page{padding:0 .75rem 3rem}.study-cards,.traps-grid{grid-template-columns:1fr}.exam-info-grid{gap:1rem}}.study-intro{background:#fff7ed;border:1px solid #fed7aa;border-radius:12px;color:#475569;line-height:1.7;margin:1rem 0 1.5rem;padding:1.1rem 1.25rem}.about-page{min-height:100vh;padding:0 1rem 4rem}.about-inner{margin:0 auto;max-width:760px;padding-top:1.5rem}.about-hero{border-bottom:1px solid var(--border);margin-bottom:2rem;padding:2rem 0 2.5rem;text-align:center}.about-icon{display:block;height:52px;margin:0 auto .75rem;object-fit:contain;width:52px}.about-title{font-size:clamp(1.8rem,4vw,2.4rem);font-weight:800;letter-spacing:-.03em;margin-bottom:.5rem}.about-subtitle{color:var(--muted);font-size:1rem;line-height:1.6;margin:0 auto;max-width:500px}.about-section{border-bottom:1px solid var(--border);margin-bottom:2rem;padding-bottom:2rem}.about-section:last-of-type{border-bottom:none}.about-section h2{color:var(--accent);font-size:1.15rem;font-weight:700;letter-spacing:-.01em;margin-bottom:.75rem}.about-section p{color:var(--muted);font-size:.92rem;line-height:1.75;margin-bottom:.75rem}.about-section p:last-child{margin-bottom:0}.about-section strong{color:var(--text)}.about-section a{color:var(--accent)}.about-exams{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));margin-top:.75rem}.about-exam-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}.about-exam-badge{border-radius:4px;color:#fff;display:inline-block;font-size:.65rem;font-weight:700;letter-spacing:.1em;margin-bottom:.6rem;padding:.2rem .6rem;text-transform:uppercase}.about-exam-card h3{color:var(--text);font-size:.9rem;font-weight:700;line-height:1.35;margin-bottom:.6rem}.about-exam-card ul{list-style:none;margin:0;padding:0}.about-exam-card li{color:var(--muted);font-size:.82rem;padding:.2rem 0 .2rem 1rem;position:relative}.about-exam-card li:before{color:var(--accent);content:"→";font-size:.75rem;left:0;position:absolute}.about-disclaimer{font-size:.75rem;line-height:1.7;padding:1.5rem 0 0;text-align:center}.about-disclaimer,.about-disclaimer a{color:var(--muted)}@media (max-width:640px){.about-exams{grid-template-columns:1fr}.about-title{font-size:1.6rem}}:root{--bg:#0f172a;--bg2:#1e293b;--bg3:#334155;--border:#334155;--text:#e2e8f0;--muted:#94a3b8;--accent:#38bdf8;--accent2:#818cf8;--correct:#4ade80;--wrong:#f87171;--warn:#fbbf24;--radius:12px;--radius-sm:8px}*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;background:#0f172a;background:var(--bg);color:#e2e8f0;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}button{border:none;cursor:pointer;font-family:inherit}a{color:#38bdf8;color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
/*# sourceMappingURL=main.90f15a15.css.map*/