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h2[data-astro-cid-zeo5b63q]{color:#2c3e50;margin-bottom:1rem;font-size:1.8rem;text-align:center}.real-experiment[data-astro-cid-zeo5b63q]>p[data-astro-cid-zeo5b63q]{color:#666;margin-bottom:2rem;text-align:center;max-width:600px;margin-left:auto;margin-right:auto}.photo-grid[data-astro-cid-zeo5b63q]{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem;max-width:1000px;margin:0 auto}.photo-item[data-astro-cid-zeo5b63q]{display:flex;flex-direction:column;align-items:center;background:#fff;padding:1rem;border-radius:10px;box-shadow:0 2px 8px #0000001a;transition:transform .2s ease-in-out,box-shadow .2s ease-in-out}.photo-item[data-astro-cid-zeo5b63q]:hover{transform:translateY(-5px);box-shadow:0 4px 12px #00000026}.photo-item[data-astro-cid-zeo5b63q] img[data-astro-cid-zeo5b63q]{width:100%;height:auto;border-radius:8px;margin-bottom:1rem;box-shadow:0 2px 4px #0000000d}.photo-item[data-astro-cid-zeo5b63q] p[data-astro-cid-zeo5b63q]{font-size:.95rem;color:#2c3e50;text-align:center;margin:.5rem 0;font-weight:500}.video-section[data-astro-cid-zeo5b63q]{margin:4rem auto 2rem;text-align:center;max-width:800px}.video-section[data-astro-cid-zeo5b63q] h3[data-astro-cid-zeo5b63q]{color:#2c3e50;margin-bottom:1.5rem;font-size:1.5rem}.video-container[data-astro-cid-zeo5b63q]{width:100%;max-width:360px;margin:2rem auto;background:#fff;padding:1.5rem;border-radius:12px;box-shadow:0 4px 12px #0000001a}.video-wrapper[data-astro-cid-zeo5b63q]{position:relative;width:100%;padding-bottom:177.78%;background:#f8f9fa;border-radius:8px;overflow:hidden}.video-container[data-astro-cid-zeo5b63q] video[data-astro-cid-zeo5b63q]{position:absolute;top:0;left:0;width:100%;height:100%;-o-object-fit:contain;object-fit:contain;border-radius:8px;background:#f8f9fa}.video-controls[data-astro-cid-zeo5b63q]{position:absolute;bottom:0;left:0;right:0;background:#00000080;padding:1rem;display:flex;align-items:center;gap:1rem;z-index:2}.play-button[data-astro-cid-zeo5b63q],.volume-button[data-astro-cid-zeo5b63q]{background:#fff;border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer}.play-button[data-astro-cid-zeo5b63q]:hover,.volume-button[data-astro-cid-zeo5b63q]:hover{background:#f0f0f0}.play-button[data-astro-cid-zeo5b63q] svg[data-astro-cid-zeo5b63q],.volume-button[data-astro-cid-zeo5b63q] svg[data-astro-cid-zeo5b63q]{width:24px;height:24px}.volume-control[data-astro-cid-zeo5b63q]{display:flex;align-items:center;gap:.5rem}.volume-control[data-astro-cid-zeo5b63q] input[data-astro-cid-zeo5b63q][type=range]{width:100px;height:4px;-webkit-appearance:none;background:#fff;border-radius:2px;cursor:pointer}.volume-control[data-astro-cid-zeo5b63q] input[data-astro-cid-zeo5b63q][type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;background:#fff;border-radius:50%;cursor:pointer}@media (max-width: 768px){.real-experiment[data-astro-cid-zeo5b63q]{padding:1.5rem;margin:1rem}.photo-grid[data-astro-cid-zeo5b63q]{grid-template-columns:1fr;gap:1.5rem}.video-container[data-astro-cid-zeo5b63q]{margin:0 1rem;padding:1rem}.video-section[data-astro-cid-zeo5b63q]{margin:3rem auto 1rem}}.controls-section[data-astro-cid-zeo5b63q]{margin:1rem 0;padding:1rem;background:#f5f5f5;border-radius:8px}.volume-control[data-astro-cid-zeo5b63q]{display:flex;align-items:center;gap:1rem}.volume-control[data-astro-cid-zeo5b63q] input[data-astro-cid-zeo5b63q][type=range]{flex:1;max-width:200px}.volume-control[data-astro-cid-zeo5b63q] span[data-astro-cid-zeo5b63q]{min-width:2rem;text-align:center}.conclusion-section[data-astro-cid-zeo5b63q]{background:#fff;padding:1.5rem;border:1px solid #ddd;border-radius:8px;margin:2rem 0}.conclusion-section[data-astro-cid-zeo5b63q] h3[data-astro-cid-zeo5b63q]{color:#2c3e50;margin-bottom:1rem}.conclusion-section[data-astro-cid-zeo5b63q] textarea[data-astro-cid-zeo5b63q]{width:100%;padding:1rem;border:2px solid #ddd;border-radius:8px;font-family:inherit;font-size:1rem;line-height:1.5;resize:vertical;min-height:120px;background:#fff;color:#333;box-sizing:border-box}.conclusion-section[data-astro-cid-zeo5b63q] textarea[data-astro-cid-zeo5b63q]:focus{outline:none;border-color:#228be6;box-shadow:0 0 0 3px #228be61a}.conclusion-section[data-astro-cid-zeo5b63q] textarea[data-astro-cid-zeo5b63q]::-moz-placeholder{color:#999;font-style:italic}.conclusion-section[data-astro-cid-zeo5b63q] textarea[data-astro-cid-zeo5b63q]::placeholder{color:#999;font-style:italic}.questions[data-astro-cid-zeo5b63q] ol[data-astro-cid-zeo5b63q]{margin-bottom:1rem}.questions[data-astro-cid-zeo5b63q] li[data-astro-cid-zeo5b63q]{margin-bottom:.5rem;color:#555}.student-info-section[data-astro-cid-zeo5b63q]{background:#f5f5f5;padding:1.5rem;border-radius:8px;margin:2rem 0}.email-input-container[data-astro-cid-zeo5b63q]{display:flex;gap:1rem;margin-bottom:1rem}.email-input-container[data-astro-cid-zeo5b63q] input[data-astro-cid-zeo5b63q][type=email]{flex:1;color:#fff;border:none;padding:10px 20px;border-radius:4px;cursor:pointer;font-weight:700;font-size:1.1em;transition:background-color .3s}.submit-btn[data-astro-cid-zeo5b63q]:hover{background-color:#218838}.submit-btn[data-astro-cid-zeo5b63q]:disabled{background-color:#6c757d;cursor:not-allowed}.submission-message[data-astro-cid-zeo5b63q]{font-size:.9em;margin-top:.5rem}.demo-container[data-astro-cid-zeo5b63q]{display:flex;flex-direction:column;align-items:center;gap:2rem;margin:2rem 0}.demo-image[data-astro-cid-zeo5b63q]{width:100%;max-width:600px;background:#fff;padding:1rem;border-radius:12px;box-shadow:0 4px 12px #0000001a}.demo-image[data-astro-cid-zeo5b63q] img[data-astro-cid-zeo5b63q]{width:100%;height:auto;border-radius:8px;transition:opacity .3s ease-in-out}.button-container[data-astro-cid-zeo5b63q]{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin-top:1rem}.step-button[data-astro-cid-zeo5b63q]{padding:.75rem 1.5rem;border:none;border-radius:8px;background:#e9ecef;color:#495057;font-size:1rem;cursor:pointer;transition:all .2s ease-in-out}.step-button[data-astro-cid-zeo5b63q]:disabled{opacity:.6;cursor:not-allowed}.step-button[data-astro-cid-zeo5b63q].active{background:#228be6;color:#fff}.step-button[data-astro-cid-zeo5b63q]:not(:disabled):hover{transform:translateY(-2px);box-shadow:0 2px 4px #0000001a}.step-button[data-astro-cid-zeo5b63q].reset{background:#fa5252;color:#fff}@media (max-width: 768px){.demo-container[data-astro-cid-zeo5b63q]{margin:1rem}.button-container[data-astro-cid-zeo5b63q]{flex-direction:column;width:100%}.step-button[data-astro-cid-zeo5b63q]{width:100%}}