:root{--bg: #ffffff;--card: #ffffff;--card-secondary: #fbfbfb;--card-tertiary: #f2f2f2;--text: #000000;--text-secondary: #727272;--text-muted: #999999;--primary: #007fed;--primary-hover: #1993fd;--success: #75b943;--success-light: #53d76b;--danger: #ff3b30;--border: #e9e9e9;--shadow: rgba(0, 0, 0, .08);--shadow-hover: rgba(0, 0, 0, .12)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0;padding:0}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);font-weight:500;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-synthesis:none;text-rendering:optimizeLegibility}.container{max-width:560px;margin:0 auto;padding:20px 16px;min-height:100vh;background:var(--bg);display:flex;flex-direction:column}.card{background:var(--card);border-radius:12px;padding:20px;box-shadow:0 2px 8px var(--shadow);border:1px solid var(--border);margin-bottom:16px}.title{font-size:28px;font-weight:700;margin:0 0 12px;text-align:center;color:var(--text);letter-spacing:-.5px;line-height:1.3}.subtitle{font-size:15px;font-weight:500;color:var(--text-secondary);text-align:center;margin-bottom:24px;line-height:1.6;letter-spacing:.2px}.row{display:flex;gap:12px}.btn{flex:1;height:50px;border-radius:10px;border:none;color:#fff;background:#000;font-weight:600;font-size:17px;letter-spacing:.3px;cursor:pointer;transition:all .2s ease;position:relative;overflow:hidden;user-select:none;-webkit-user-select:none;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #00000026}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff26;transform:translate(-50%,-50%);transition:width .3s,height .3s}.btn:active:before{width:300px;height:300px}.btn:hover:not(:disabled){background:#1a1a1a;box-shadow:0 4px 12px #0003;transform:translateY(-1px)}.btn:active:not(:disabled){background:#2a2a2a;transform:translateY(0);box-shadow:0 2px 6px #00000026}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn.secondary{background:var(--card-tertiary);color:var(--text);border:1px solid var(--border)}.btn.secondary:hover:not(:disabled){background:var(--border);box-shadow:0 2px 8px var(--shadow);transform:translateY(-1px)}.center{display:flex;align-items:center;justify-content:center}.status{padding:18px;border-radius:10px;text-align:center;margin-top:16px;font-size:16px;font-weight:600;letter-spacing:.2px;border:1px solid}.status.ok{background:#75b9431a;color:var(--success);border-color:#75b94333}.status.err{background:#ff3b301a;color:var(--danger);border-color:#ff3b3033}.meta{font-size:14px;font-weight:500;color:var(--text);text-align:center;word-break:break-all;line-height:1.7;letter-spacing:.1px}.qr-box{background:#fff;border-radius:12px;padding:8px;border:1px solid var(--border)}.small{font-size:13px;font-weight:500;color:var(--text-secondary);line-height:1.6;letter-spacing:.1px}video{width:100%;border-radius:8px;background:#000}canvas{display:none}.result-card{text-align:center;padding:32px 20px}.result-icon{width:80px;height:80px;margin:0 auto 20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:40px}.result-icon.success{background:#75b94326;color:var(--success)}.result-icon.error{background:#ff3b3026;color:var(--danger)}.result-title{font-size:24px;font-weight:700;margin:0 0 12px;color:var(--text);letter-spacing:-.3px;line-height:1.3}.result-message{font-size:16px;font-weight:500;color:var(--text);margin:0 0 28px;line-height:1.7;letter-spacing:.1px}.loading{display:inline-block;width:20px;height:20px;border:3px solid rgba(0,127,237,.2);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes scanLine{0%{top:0;opacity:1}50%{top:calc(100% - 2px);opacity:1}51%{opacity:0}to{top:0;opacity:0}}@media (max-width: 480px){.container{padding:16px 12px}.card{padding:16px;border-radius:10px}.title{font-size:26px;font-weight:700}.btn{height:48px;font-size:16px;font-weight:600}.subtitle{font-size:14px;font-weight:500}.result-title{font-size:22px;font-weight:700}.result-message{font-size:15px;font-weight:500}}