.piano-captcha-init-screen{text-align:center;padding:20px 0;width:100%;box-sizing:border-box;display:flex;flex-direction:column;align-items:center}.piano-captcha-init-screen h2{font-size:2em;color:#333;margin-bottom:20px;white-space:nowrap}.piano-captcha-init-screen p{font-size:1.2em;color:#666;line-height:1.6;margin-bottom:30px;white-space:nowrap;text-align:center}.piano-captcha-start-btn{background-color:#4caf50;color:#fff;padding:12px 30px;border:none;border-radius:8px;font-size:1.2em;font-weight:500;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 4px #0000001a}.piano-captcha-start-btn:hover{background-color:#45a049;transform:translateY(-2px);box-shadow:0 4px 8px #0003}.piano-captcha-start-btn:active{transform:translateY(0);box-shadow:0 2px 4px #0000001a}.piano-captcha-note-list{background:#f8f9fa;border-radius:4px;padding:12px;width:100%;box-sizing:border-box}.piano-captcha-note-display{min-height:40px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;min-width:100%}.piano-captcha-note{background:#e9ecef;padding:8px 16px;border-radius:4px;font-size:16px;color:#495057;font-weight:500;box-shadow:0 1px 3px #0000001a;text-align:center}.piano-captcha-piano{width:100%;max-width:470px;margin:0 auto;padding:20px}.piano-keys{position:relative;height:180px;display:flex}.piano-captcha-key{border:1px solid #000;display:flex;align-items:flex-end;justify-content:center;padding-bottom:8px;font-weight:700;font-size:.9em}.white-key{background-color:#fff;flex:1;height:100%;margin:0 .5px;border-radius:0 0 3px 3px;min-width:0;cursor:pointer}.white-key:hover{background-color:#f0f0f0}.black-keys{position:absolute;width:100%;height:60%;top:0;pointer-events:none}.black-key{position:absolute;background-color:#333;width:8%;height:100%;border-radius:0 0 3px 3px;z-index:1}.black-key:hover{background-color:#555}.piano-captcha-target-notes{background-color:#f5f5f5;padding:15px;border-radius:8px;font-size:18px;font-weight:700;color:#333;text-align:center;border:2px dashed #ccc;width:100%;box-sizing:border-box;white-space:nowrap;margin-bottom:20px}.piano-captcha-target-notes:before{content:"🎵";margin-right:8px}.piano-captcha-attempts{font-weight:300;font-size:14px;color:#666}.piano-captcha-result-message{padding:15px 20px;border-radius:8px;text-align:center;width:100%;box-sizing:border-box;display:flex;flex-direction:column;justify-content:center;align-items:center;cursor:pointer;transition:all .2s ease;border:2px solid transparent}.piano-captcha-result-message.success{background-color:#e8f5e9;color:#2e7d32;border-color:#4caf50}.piano-captcha-result-message.fail{background-color:#ffebee;color:#c62828;border-color:#f44336}.piano-captcha-result-message:hover{transform:translateY(-2px);box-shadow:0 4px 8px #0003}.piano-captcha-result-message:active{transform:translateY(0);box-shadow:0 2px 4px #0000001a}.piano-captcha-result-message p{font-size:1.2em;font-weight:700;margin:0;color:inherit}.piano-captcha-result-hint{font-size:.9em!important;font-weight:400!important;margin-top:8px!important;opacity:.8}.piano-captcha-floating-box{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;border-radius:12px;box-shadow:0 8px 16px #0000001a;width:560px;display:flex;justify-content:center}.piano-captcha-floating-content{display:flex;flex-direction:column;align-items:center;gap:24px;width:100%;padding:27px}.piano-captcha-close{position:absolute;top:5px;right:5px;width:30px;height:30px;border:none;background:none;font-size:24px;color:#666;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background-color .2s}.piano-captcha-close:hover{background-color:#f0f0f0}