.guitar-academy{min-height:100vh;background:#f3f0e6;color:#17352c}.guitar-shell{width:min(1180px,calc(100% - 32px));margin:auto;padding:22px 0 54px}.guitar-nav,.guitar-section-head,.guitar-question-head{display:flex;align-items:center;justify-content:space-between;gap:18px}.guitar-nav{padding:12px 0 28px;border-bottom:1px solid #c9c5b5}.guitar-nav>div{text-align:center}.guitar-nav span,.guitar-kicker{font-size:.72rem;font-weight:800;letter-spacing:.16em;color:#1f735d}.guitar-nav h1{margin:4px 0 0;font:700 clamp(1.5rem,3vw,2.25rem)/1.05 Georgia,"Noto Serif SC",serif}.guitar-hero{display:grid;grid-template-columns:1fr auto;align-items:end;gap:28px;padding:60px clamp(24px,5vw,64px);margin-top:24px;border-radius:30px;background:linear-gradient(135deg,#173c32,#276b57);color:#fff;box-shadow:0 22px 55px #17352c25}.guitar-hero h2{max-width:760px;margin:12px 0;font:700 clamp(2rem,5vw,4.4rem)/1.04 Georgia,"Noto Serif SC",serif}.guitar-hero p{max-width:620px;color:#d9e8df}.guitar-primary{border:0;border-radius:999px;padding:14px 24px;background:#c8a65e;color:#122e27;font-weight:800;cursor:pointer}.guitar-primary:disabled{opacity:.45;cursor:not-allowed}.guitar-progress-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0}.guitar-progress-grid article{padding:20px;border:1px solid #d4d0c2;border-radius:18px;background:#fffdf8}.guitar-progress-grid span{display:block;color:#6b766f;font-size:.8rem}.guitar-progress-grid strong{display:block;margin-top:8px;font-size:1.35rem}.guitar-route-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:14px}.guitar-route-grid>*{min-height:205px;padding:24px;border:1px solid #d5d0bf;border-radius:22px;text-align:left;background:#fffdf8}.guitar-route-grid button{cursor:pointer}.guitar-route-grid i,.guitar-route-grid b,.guitar-route-grid span,.guitar-route-grid em{display:block}.guitar-route-grid i{font-style:normal;font-size:.72rem;letter-spacing:.14em;color:#1f735d}.guitar-route-grid b{margin:28px 0 8px;font:700 1.65rem Georgia,"Noto Serif SC",serif}.guitar-route-grid span{color:#69746d}.guitar-route-grid em{margin-top:20px;font-style:normal;font-weight:800;color:#1f735d}.guitar-route-grid .is-open{border-color:#8ab3a6;background:linear-gradient(145deg,#fffdf8,#e2eee8)}.guitar-route-grid .is-soon{opacity:.65}.guitar-section-head{margin:34px 0 20px}.guitar-section-head h2{margin:7px 0;font:700 clamp(2rem,4vw,3.5rem) Georgia,"Noto Serif SC",serif}.guitar-chapter-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.guitar-chapter{position:relative;padding:24px;border:1px solid #d2cebf;border-radius:21px;background:#fffdf8;text-align:left;cursor:pointer}.guitar-chapter small,.guitar-chapter b,.guitar-chapter span{display:block}.guitar-chapter small{color:#1f735d;font-weight:800;letter-spacing:.1em}.guitar-chapter b{margin:14px 0 7px;font:700 1.45rem Georgia,"Noto Serif SC",serif}.guitar-chapter span{color:#6b766f}.guitar-chapter em{position:absolute;right:20px;top:20px;font-style:normal;color:#aa8136}.guitar-back{border:0;background:none;color:#1f735d;font-weight:800;cursor:pointer;padding:14px 0}.guitar-lesson-card,.guitar-question-card,.guitar-result-card{max-width:850px;margin:32px auto;padding:clamp(24px,5vw,56px);border:1px solid #d2cebf;border-radius:28px;background:#fffdf8}.guitar-lesson-card h2,.guitar-question-card h2,.guitar-result-card h2{font:700 clamp(2rem,4vw,3.2rem)/1.08 Georgia,"Noto Serif SC",serif}.guitar-lesson-card li{margin:12px 0;line-height:1.7}.guitar-applications{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:22px 0}.guitar-application{padding:14px;border-radius:14px;background:#ecf1ec}.guitar-application b,.guitar-application span{display:block}.guitar-application span{margin-top:5px;color:#5d6a63}.guitar-actions,.guitar-question-nav{display:flex;justify-content:flex-end;gap:10px;margin-top:28px}.guitar-question-progress{height:5px;margin:12px 0 0;background:#d9d6c9;border-radius:99px;overflow:hidden}.guitar-question-progress i{display:block;height:100%;width:0;background:#c8a65e;transition:width .2s}.guitar-options{display:grid;gap:10px;margin-top:24px}.guitar-option{padding:15px 17px;border:1px solid #c9c5b5;border-radius:14px;background:#fff;text-align:left;cursor:pointer}.guitar-option.correct{border-color:#31836a;background:#e0f2ea}.guitar-option.wrong{border-color:#b85a4d;background:#f9e5e0}.guitar-option:disabled{cursor:default;color:inherit}.guitar-explanation{margin-top:18px;padding:16px;border-left:4px solid #c8a65e;background:#f4eedc;line-height:1.65}.guitar-result-card{text-align:center}.guitar-result-card>strong{display:block;margin:20px 0;font:700 clamp(3rem,8vw,6rem) Georgia,serif;color:#1f735d}.guitar-result-card .guitar-actions{justify-content:center}
@media(max-width:760px){.guitar-shell{width:min(100% - 20px,1180px);padding-top:8px}.guitar-nav{align-items:flex-start;flex-wrap:wrap}.guitar-nav>div{order:-1;width:100%;text-align:left}.guitar-hero{grid-template-columns:1fr;padding:34px 24px;border-radius:22px}.guitar-progress-grid{grid-template-columns:repeat(2,1fr)}.guitar-route-grid,.guitar-chapter-grid{grid-template-columns:1fr}.guitar-route-grid>*{min-height:160px}.guitar-applications{grid-template-columns:1fr}.guitar-question-nav .guitar-primary,.guitar-question-nav .edu-button{flex:1}.guitar-section-head{align-items:flex-start;flex-direction:column}.guitar-nav .edu-button{font-size:.78rem;padding:8px 10px}}
@media(orientation:landscape) and (max-height:600px){.guitar-hero{padding:25px 30px}.guitar-route-grid>*{min-height:145px}.guitar-lesson-card,.guitar-question-card{margin:14px auto;padding:25px}}