.video-wrapper video[data-v-deb0a4bc]::-webkit-media-controls-timeline{display:none}:root{--primary: #3CB371;--primary-light: #6DC99A;--primary-bg: #EDF7F1;--bg: #F3F6F4;--text: #333;--text-light: #999;--border: #E8E8E8;--danger: #FA5151;font-size:clamp(12px,3.5vw,18px)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html{height:100%;background-color:var(--bg)}html,body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--text);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;text-size-adjust:100%}body{min-height:100%;margin:0;padding:0;background-color:var(--bg);overflow-x:hidden;overflow-y:auto;position:relative}button{font-family:inherit;cursor:pointer;border:none;background:none;outline:none;-webkit-appearance:none;-moz-appearance:none;appearance:none;font-size:inherit}button:active{opacity:.85}.nav-bar{position:relative;z-index:100;display:flex;align-items:center;justify-content:center;height:3.2rem;background:var(--primary);color:#fff;font-size:1.1rem;font-weight:500;box-shadow:0 .06rem .4rem #00000014}.nav-title{letter-spacing:.06rem}.container{width:100%;max-width:100%;margin:0 auto;padding:0 .75rem 2rem;position:relative}.video-section{background:#fff;margin-bottom:.75rem}.video-wrapper{width:100%;position:relative;background:#000;aspect-ratio:16 / 9}.video-wrapper video{width:100%;height:100%;display:block;object-fit:contain}.progress-bar-wrap{padding:.6rem .9rem;background:#fff}.progress-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:.4rem}.progress-label{font-size:.8rem;color:var(--text-light)}.progress-value{font-size:.8rem;color:var(--primary);font-weight:700}.progress-track{height:.25rem;background:var(--border);border-radius:.15rem;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(to right,var(--primary),var(--primary-light));border-radius:.15rem;transition:width .3s ease}.video-status{display:flex;align-items:center;justify-content:center;padding:.5rem .9rem .75rem;gap:.4rem}.video-status .status-icon{font-size:.9rem}.video-status .status-text{font-size:.8rem;color:var(--text-light)}.video-status.completed .status-text{color:var(--primary);font-weight:500}.quiz-section{padding:0}.section-header{display:flex;justify-content:space-between;align-items:center;padding:.9rem 0 .6rem}.section-title{font-size:1.05rem;font-weight:700;color:var(--text)}.question-count{font-size:.8rem;color:var(--text-light)}.question-card{background:#fff;border-radius:.5rem;padding:1.1rem .9rem;margin-bottom:.75rem;box-shadow:0 .06rem .4rem #0000000d;transition:opacity .3s}.question-card.locked{opacity:.6;pointer-events:none}.question-header{margin-bottom:.75rem}.question-index{font-size:.9rem;color:var(--primary);font-weight:700}.question-total{font-size:.8rem;color:var(--text-light)}.question-title{font-size:.95rem;color:var(--text);line-height:1.6;margin-bottom:.9rem;font-weight:500}.options-list{display:flex;flex-direction:column;gap:.5rem}.option-item{display:flex;align-items:center;padding:.75rem .6rem;background:#f7f9f8;border-radius:.4rem;border:.06rem solid transparent;transition:all .2s ease;cursor:pointer;min-height:2.6rem}.option-item:hover{background:#f0f7f3}.option-item.selected{background:var(--primary-bg);border-color:var(--primary)}.option-radio{width:1.15rem;height:1.15rem;border-radius:50%;border:.06rem solid #D9D9D9;display:flex;align-items:center;justify-content:center;margin-right:.5rem;flex-shrink:0;transition:border-color .2s}.option-item.selected .option-radio{border-color:var(--primary)}.radio-inner{width:.6rem;height:.6rem;border-radius:50%;background:transparent;transition:background .2s}.radio-inner.checked{background:var(--primary)}.option-key{font-size:.9rem;color:#666;font-weight:700;margin-right:.5rem;min-width:1.1rem}.option-item.selected .option-key{color:var(--primary)}.option-text{font-size:.9rem;color:var(--text);line-height:1.5;flex:1;word-break:break-word}.quiz-nav{display:flex;align-items:center;justify-content:space-between;padding:0 .3rem;margin-bottom:.9rem;gap:.5rem}.btn-nav{padding:.5rem 1rem;font-size:.82rem;border-radius:1.25rem;background:#fff;color:var(--primary);border:.06rem solid var(--primary);transition:all .2s;white-space:nowrap;flex-shrink:0}.btn-nav:disabled,.btn-nav.disabled{color:silver;border-color:#e0e0e0;background:#f5f5f5;cursor:not-allowed}.question-dots{display:flex;gap:.4rem;align-items:center;flex:1;justify-content:center;flex-wrap:wrap}.dot{width:.45rem;height:.45rem;border-radius:50%;background:#e0e0e0;transition:all .2s}.dot.active{width:.75rem;border-radius:.25rem;background:var(--primary)}.dot.answered{background:#b0dcc5}.submit-wrap{padding:.6rem 0 1.25rem}.btn-submit{display:flex;align-items:center;justify-content:center;width:100%;height:2.75rem;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:1rem;font-weight:700;border-radius:1.4rem;box-shadow:0 .2rem .6rem #3cb3714d;transition:opacity .2s}.btn-submit.disabled,.btn-submit:disabled{background:silver;box-shadow:none;cursor:not-allowed;opacity:.7}.result-card{background:#fff;border-radius:.5rem;padding:1.5rem .9rem;text-align:center;box-shadow:0 .06rem .4rem #0000000d;margin-bottom:.75rem}.result-header{margin-bottom:.9rem}.result-title{font-size:1.05rem;font-weight:700;color:var(--text)}.result-score{margin-bottom:.6rem}.score-num{font-size:2.5rem;font-weight:700;color:var(--primary);line-height:1}.score-total{font-size:1.15rem;color:var(--text-light)}.result-detail{display:flex;justify-content:center;gap:1.25rem;margin-bottom:1.25rem;flex-wrap:wrap}.detail-correct{font-size:.82rem;color:var(--primary)}.detail-wrong{font-size:.82rem;color:var(--danger)}.result-actions{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}.btn{padding:.6rem 1.5rem;border-radius:1.25rem;font-size:.9rem;font-weight:500;text-align:center}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff}.btn-secondary{background:var(--primary-bg);color:var(--primary);border:.06rem solid var(--primary)}.loading-wrap{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2.5rem 0}.loading-spinner{width:1.5rem;height:1.5rem;border:.13rem solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:.6rem}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{font-size:.82rem;color:var(--text-light)}.empty-wrap{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem 1.25rem}.empty-icon{font-size:2.5rem;color:#d0d0d0;margin-bottom:.75rem}.empty-msg{font-size:.9rem;color:var(--text-light)}.toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#000000bf;color:#fff;padding:.6rem 1.25rem;border-radius:.4rem;font-size:.88rem;z-index:1000;max-width:80%;text-align:center;pointer-events:none;animation:toast-in .2s ease;word-break:break-word}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,-45%)}to{opacity:1;transform:translate(-50%,-50%)}}@media(max-width:374px){:root{font-size:11px}.container{padding:0 .5rem 2rem}.question-card{padding:.9rem .7rem}.option-item{padding:.6rem .5rem}.section-title{font-size:1rem}.nav-bar{height:2.8rem;font-size:1rem}}@media(min-width:375px)and (max-width:413px){:root{font-size:13px}}@media(min-width:414px)and (max-width:600px){:root{font-size:14px}}@media(min-width:601px)and (max-width:768px){:root{font-size:16px}.container{padding:0 1.5rem 2.5rem}.question-card{padding:1.5rem}.option-item{padding:1rem}.progress-bar-wrap{padding:.9rem 1.5rem}}@media(min-width:769px){:root{font-size:16px}.container{max-width:960px;padding:0 1.5rem 3rem}.nav-bar{max-width:100%}.video-wrapper{max-height:540px}.question-card{padding:2rem}.option-item{padding:1.1rem 1.25rem}.progress-bar-wrap{padding:1.25rem 2rem}.section-header{padding:1.5rem 0 1rem}}@media(min-width:1200px){:root{font-size:18px}.container{max-width:1100px;padding:0 2rem 3.5rem}.video-wrapper{max-height:620px}.question-card{padding:2.4rem 3rem}.option-item{padding:1.25rem 1.5rem}.progress-bar-wrap{padding:1.5rem 3rem}}@media(min-width:1600px){:root{font-size:20px}.container{max-width:1280px}}@media(orientation:landscape)and (max-height:500px){.nav-bar{height:2.4rem;font-size:.95rem}.video-wrapper{aspect-ratio:16 / 9;max-height:280px}.video-section{margin-bottom:.4rem}.progress-bar-wrap{padding:.4rem .9rem}.video-status{padding:.3rem .9rem .5rem}}@media(-webkit-min-device-pixel-ratio:2),(min-resolution:192dpi){body{-webkit-font-smoothing:antialiased}}@media(prefers-color-scheme:dark){.question-card,.result-card{box-shadow:0 .06rem .4rem #00000026}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}