.feedback-dock{box-sizing:border-box;position:fixed;right:24px;bottom:23px;z-index:65;display:flex;align-items:center;gap:13px;max-width:calc(100vw - 32px);font:14px/1.6 "Segoe UI","Microsoft YaHei",sans-serif;color:#385442;isolation:isolate}.feedback-invitation{box-sizing:border-box;margin:0;max-width:258px;padding:12px 17px;background:#fff6d9;border:1px solid #eddeb0;border-radius:14px 14px 4px 14px;box-shadow:0 6px 26px #68522215;color:#765325;font-size:14px;font-weight:650;line-height:1.8;transform:rotate(-1.3deg)}.feedback-contact{position:relative;flex-shrink:0}.feedback-launcher{box-sizing:border-box;display:flex;align-items:center;gap:9px;min-height:52px;padding:12px 17px;border:1px solid #315f4b;border-radius:16px;background:#315f4b;color:#fff;font:650 14px/1.4 "Segoe UI","Microsoft YaHei",sans-serif;box-shadow:0 8px 26px #244d3633;cursor:pointer;transition:background .2s,box-shadow .2s,transform .2s}.feedback-launcher svg{width:23px;height:23px;flex-shrink:0}.feedback-launcher:hover{background:#234c3b;box-shadow:0 10px 30px #244d3640;transform:translateY(-2px)}.feedback-launcher:focus-visible{outline:3px solid #c49846;outline-offset:4px}.feedback-button-arrow{color:#dceab6;font-size:20px;line-height:1}.feedback-qr{box-sizing:border-box;position:absolute;bottom:calc(100% + 15px);right:0;width:280px;max-width:calc(100vw - 32px);padding:17px 18px 16px;display:flex;flex-direction:column;align-items:center;background:#fff;color:#355740;border:1px solid #e2eadf;border-radius:19px;box-shadow:0 18px 60px #1e3f3929;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(9px) scale(.98);transform-origin:bottom right;transition:opacity .2s,transform .2s,visibility .2s}.feedback-qr::after{content:"";position:absolute;bottom:-17px;right:0;left:0;height:18px}.feedback-qr img{display:block;width:232px;max-width:100%;height:auto;aspect-ratio:1;object-fit:contain;background:white;margin:8px 0 10px}.feedback-qr-eyebrow{font-size:11px;letter-spacing:2px;color:#86947c}.feedback-qr b{font-size:14px;font-weight:650}.feedback-qr small{margin-top:3px;font-size:11px;color:#85917c}.feedback-contact:hover .feedback-qr,.feedback-contact:focus-within .feedback-qr{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0) scale(1)}.feedback-captcha-row{display:flex;align-items:center;gap:12px;min-height:64px;margin-bottom:9px}.feedback-captcha-row img{width:190px;height:64px;max-width:65%;object-fit:contain}.feedback-captcha-row button{border:1px solid #cad9c2;border-radius:8px;padding:8px 12px;background:#f1f6eb;color:#46683c;font:inherit;cursor:pointer}.feedback-captcha input{box-sizing:border-box;width:100%;padding:11px 12px;border:1px solid #d5e1cf;border-radius:9px;font:inherit;color:#334f3e;background:#fff}.feedback-captcha small{display:block;font-size:11px;color:#7c8d70;margin-top:5px}.feedback-dialog [hidden]{display:none!important}
.feedback-dialog{box-sizing:border-box;position:fixed;inset:0;margin:auto;width:min(620px,calc(100vw - 28px));max-height:calc(100dvh - 28px);padding:27px;border:1px solid #fff;border-radius:20px;background:#fcfdf9;color:#304c3c;box-shadow:0 25px 90px #17382f40;overflow:auto;font:14px/1.6 "Segoe UI","Microsoft YaHei",sans-serif}.feedback-dialog::backdrop{background:#17342b66;backdrop-filter:blur(5px)}.feedback-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:21px}.feedback-heading>div>span{font-size:10px;color:#89967d;letter-spacing:1px}.feedback-heading h2{font-size:23px;font-weight:650;margin:4px 0 0}.feedback-heading>button{width:32px;height:32px;flex-shrink:0;background:#f0f4e9;border:1px solid #e0e8d8;border-radius:50%;color:#87957c;cursor:pointer}.feedback-tabs{display:flex;gap:18px;border-bottom:1px solid #e2e9db;margin-bottom:20px}.feedback-tabs button{font:inherit;font-size:12px;padding:0 2px 10px;background:none;border:0;border-bottom:2px solid transparent;color:#829277;cursor:pointer}.feedback-tabs button[aria-selected=true]{border-color:#35654b;color:#35654b;font-weight:650}.feedback-dialog label{display:block;font-size:12px;color:#65795c;margin:17px 0 8px}.feedback-dialog select{width:100%}.feedback-dialog textarea{box-sizing:border-box;width:100%;min-height:140px;resize:vertical;padding:13px;border:1px solid #d5e1cf;border-radius:10px;background:#fff;color:#334f3e;font:13px/1.8 inherit}.feedback-dialog textarea:focus{outline:2px solid #8eb08866;outline-offset:2px}.feedback-counter{text-align:right;font-size:10px;color:#8a987f;margin-top:5px}.feedback-privacy{padding:12px 14px;background:#f0f5eb;border-radius:9px;color:#7b8b6d;font-size:11px;line-height:1.9;margin:15px 0}.feedback-dialog footer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:20px}.feedback-dialog footer>span{font-size:10px;color:#91a086}.feedback-dialog button[type=submit]{font:inherit;font-size:12px;font-weight:600;min-height:40px;border:1px solid #2e6147;border-radius:9px;background:#2e6147;color:#fff;padding:10px 20px;cursor:pointer}.feedback-dialog button:disabled{opacity:.6;cursor:wait}.feedback-message{padding:12px 14px;margin:0 0 18px;border:1px solid #c9dfc8;border-radius:9px;background:#edf6e9;color:#3b6d47;font-size:12px;overflow-wrap:anywhere}.feedback-message.error{background:#fff3eb;border-color:#ebcfbc;color:#9c5d42}.feedback-record{padding:17px 0;border-bottom:1px solid #e3eadb}.feedback-record>div{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:12px}.feedback-record small,.feedback-record>span{font-size:10px;color:#8a9980}.feedback-record p{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;line-height:1.9;margin:10px 0}.feedback-empty,.feedback-history-intro{font-size:12px;color:#839475;line-height:1.9}.feedback-dialog[hidden]{display:none}
/* 认证页面的联系按钮靠左，二维码也向右展开；工作台保留原右侧入口。 */
.feedback-dock.feedback-dock-public{left:24px;right:auto;flex-direction:row-reverse}
.feedback-dock-public .feedback-invitation{border-radius:14px 14px 14px 4px;transform:rotate(1.3deg)}
.feedback-dock-public .feedback-qr{left:0;right:auto;transform-origin:bottom left}
@media(max-width:760px){.feedback-dock{right:12px;bottom:calc(80px + env(safe-area-inset-bottom,0px));gap:8px;max-width:calc(100vw - 24px)}.feedback-dock.feedback-dock-public{left:12px;right:auto}.feedback-invitation{max-width:210px;font-size:12px;padding:9px 11px;line-height:1.7}.feedback-launcher{min-height:48px;padding:10px 12px;gap:6px;font-size:12px;border-radius:13px}.feedback-launcher svg{width:20px;height:20px}.feedback-button-arrow{display:none}.teacher-workspace .feedback-dock,.feedback-dock-public{bottom:calc(15px + env(safe-area-inset-bottom,0px))}.feedback-dock-public .feedback-invitation{max-width:200px}.feedback-qr{width:260px;padding:14px}.feedback-dialog{padding:20px}.feedback-heading h2{font-size:20px}.feedback-dialog footer{align-items:flex-end}.feedback-dialog footer>span{max-width:130px}}
@media(max-width:360px){.feedback-invitation{max-width:175px;font-size:11px}.feedback-launcher{padding:10px}.feedback-dock-public .feedback-invitation{max-width:175px}}
@media(prefers-reduced-motion:reduce){.feedback-launcher,.feedback-qr{transition:none}}
@media print{.feedback-dialog,.feedback-dock{display:none!important}}