*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden}body{font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:#172033;background:#eef3fb;font-size:12px}.workspace-demo{position:relative;width:696px;height:456px;margin:12px;background:#f8fafc;border:1px solid #d9e2ef;border-radius:10px;overflow:hidden;box-shadow:0 12px 28px rgba(35,64,112,.10)}button{font:inherit;color:inherit}button,.clickable{cursor:pointer}.workspace-content{position:absolute;inset:0;padding:10px;display:grid;gap:10px}.panel{min-width:0;min-height:0;background:#fff;border:1px solid #dfe6f0;border-radius:10px;overflow:hidden;box-shadow:0 2px 8px rgba(34,60,100,.045)}.panel-header{height:42px;padding:0 12px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e8edf4;font-size:12px;font-weight:700;color:#1d2939}.panel-title{display:flex;align-items:center;gap:7px}.title-icon{width:21px;height:21px;border-radius:6px;display:grid;place-items:center;background:#eaf2ff;color:#286bd6;font-size:11px}.badge{padding:3px 7px;border-radius:999px;background:#eef4ff;color:#286bd6;font-size:10px;font-weight:700}.muted{color:#7a8799}.blue{color:#286bd6}.dot{width:7px;height:7px;border-radius:50%;background:#ef5350}.button{height:34px;border:1px solid #ccd7e6;border-radius:7px;background:#fff;padding:0 11px;display:inline-flex;align-items:center;justify-content:center;gap:6px;font-weight:650;transition:.16s ease}.button.primary{border-color:#2f71d8;background:#2f71d8;color:#fff}.button.demo-hover,.tool-btn.demo-hover,.upload-button.demo-hover,.quiz-option.demo-hover,.flash-card.demo-hover,.copy-tool.demo-hover{transform:translateY(-1px);border-color:#77a8ef;box-shadow:0 4px 12px rgba(47,113,216,.18)}.button.demo-click,.tool-btn.demo-click,.upload-button.demo-click,.quiz-option.demo-click,.flash-card.demo-click,.copy-tool.demo-click{transform:scale(.97);box-shadow:0 0 0 3px rgba(47,113,216,.15)}.chat-panel{position:relative;display:flex;flex-direction:column;min-height:0}.chat-scroll{flex:1;min-height:0;padding:12px;display:flex;flex-direction:column;gap:8px;overflow:hidden}.chat-input{height:44px;flex:0 0 44px;margin:0 12px 10px;border:1px solid #cfd9e7;border-radius:9px;background:#fff;display:flex;align-items:center;gap:8px;padding:0 8px 0 12px;color:#7c8797}.chat-send{margin-left:auto;width:28px;height:28px;border:0;border-radius:7px;background:#2f71d8;color:#fff;display:grid;place-items:center}.message{max-width:92%;border-radius:9px;padding:8px 10px;line-height:1.45;opacity:0;transform:translateY(4px);transition:.28s ease}.message.system{opacity:1;transform:none;background:#f3f6fa;color:#526071}.message.user{margin-left:auto;background:#2f71d8;color:#fff}.message.ai{background:#eef4ff;border:1px solid #dbe8fb}.source-chip{display:inline-flex;align-items:center;gap:5px;margin-top:5px;padding:3px 6px;border-radius:5px;background:#fff;border:1px solid #d8e3f2;color:#5b6d84;font-size:10px}.stage-in{opacity:0;transform:translateY(5px);transition:.28s ease}.stage-in.show{opacity:1;transform:none}.demo-cursor{--cx:28px;--cy:28px;--move:760ms;position:absolute;left:0;top:0;z-index:30;width:20px;height:24px;transform:translate(var(--cx),var(--cy));transition:transform var(--move) cubic-bezier(.22,.75,.22,1),opacity .18s;pointer-events:none;filter:drop-shadow(0 1px 1px rgba(0,0,0,.28));transform-origin:top left}.demo-cursor.is-arrow:before{content:"";position:absolute;left:0;top:0;width:17px;height:22px;background:#fff;border:1.6px solid #162033;clip-path:polygon(0 0,0 88%,26% 68%,43% 100%,58% 92%,41% 62%,74% 62%)}.demo-cursor.is-text{width:13px;height:24px;filter:none}.demo-cursor.is-text:before{content:"";position:absolute;left:5px;top:2px;width:2px;height:20px;background:#172033}.demo-cursor.is-text:after{content:"";position:absolute;left:1px;top:2px;width:10px;height:20px;border-top:2px solid #172033;border-bottom:2px solid #172033}.demo-cursor.is-hidden{opacity:0;transition:none}
/* Lecture */
.lecture-layout{grid-template-columns:1.08fr .92fr}.record-panel{display:flex;flex-direction:column;position:relative}.record-start-wrap{flex:1;display:grid;place-items:center}.record-start{width:148px;height:48px;border-radius:10px;font-size:13px}.record-start .mic{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.17)}.record-live{display:none;height:49px;margin:10px 10px 7px;padding:0 10px;border:1px solid #f2d4d3;background:#fff8f8;border-radius:8px;align-items:center;gap:9px}.rec-wave{display:flex;align-items:center;gap:2px;height:22px;flex:1}.rec-wave i{display:block;width:3px;height:8px;border-radius:2px;background:#ef5350;animation:wave .7s ease-in-out infinite alternate}.rec-wave i:nth-child(2n){animation-delay:.18s;height:15px}.rec-wave i:nth-child(3n){animation-delay:.32s;height:11px}@keyframes wave{to{height:20px}}.transcript{position:relative;display:none;flex:1;min-height:0;padding:0 10px 10px;overflow:hidden}.transcript-row{position:relative;padding:7px 8px 7px 45px;border-radius:7px;opacity:0;visibility:hidden;transform:translateY(5px);transition:.25s ease}.transcript-row+.transcript-row{margin-top:3px}.timestamp{position:absolute;left:7px;top:8px;color:#2f71d8;font-size:10px;font-weight:700}.original{font-size:10.5px;line-height:1.32;color:#26364b}.translation{margin-top:2px;font-size:10px;line-height:1.3;color:#738096}.select-term{border-radius:3px;cursor:text}.selection-toolbar{position:absolute;z-index:4;left:152px;top:155px;display:none;align-items:center;gap:5px;padding:5px 7px;border-radius:7px;background:#172033;color:#fff;box-shadow:0 5px 14px rgba(20,31,48,.22);font-size:10px}.ask-chat{cursor:pointer}.typing{display:none;align-items:center;gap:3px;padding:8px 10px;border-radius:9px;background:#eef4ff;width:45px}.typing i{width:5px;height:5px;border-radius:50%;background:#7c98bc;animation:pulse .7s infinite alternate}.typing i:nth-child(2){animation-delay:.18s}.typing i:nth-child(3){animation-delay:.36s}@keyframes pulse{to{opacity:.35}}body[data-scene="lecture"]:not([data-phase="0"]) .record-start-wrap{display:none}body[data-scene="lecture"]:not([data-phase="0"]) .record-live{display:flex}body[data-scene="lecture"]:not([data-phase="0"]) .transcript{display:block}body[data-scene="lecture"][data-phase="2"] .transcript-row:nth-child(1),body[data-scene="lecture"][data-phase="3"] .transcript-row:nth-child(-n+2),body[data-scene="lecture"][data-phase="4"] .transcript-row,body[data-scene="lecture"][data-phase="5"] .transcript-row,body[data-scene="lecture"][data-phase="6"] .transcript-row,body[data-scene="lecture"][data-phase="7"] .transcript-row,body[data-scene="lecture"][data-phase="8"] .transcript-row{opacity:1;visibility:visible;transform:none}body[data-scene="lecture"][data-phase="5"] .select-term,body[data-scene="lecture"][data-phase="6"] .select-term,body[data-scene="lecture"][data-phase="7"] .select-term,body[data-scene="lecture"][data-phase="8"] .select-term{background:#bdd7ff;box-shadow:0 0 0 1px #8bb6f2}body[data-scene="lecture"][data-phase="5"] .selection-toolbar,body[data-scene="lecture"][data-phase="6"] .selection-toolbar{display:flex}body[data-scene="lecture"][data-phase="6"] .typing{display:flex}body[data-scene="lecture"][data-phase="7"] .lecture-question,body[data-scene="lecture"][data-phase="8"] .lecture-question,body[data-scene="lecture"][data-phase="8"] .lecture-answer{opacity:1;transform:none}
/* Reading */
.reading-layout{grid-template-columns:205px 1fr}.resource-body{padding:10px;position:relative;height:calc(100% - 42px)}.upload-button{height:72px;width:100%;border:1px dashed #97b8e8;border-radius:8px;background:#f6faff;color:#2f71d8;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;transition:.16s ease}.upload-symbol{width:25px;height:25px;border-radius:7px;background:#e2edff;display:grid;place-items:center;font-size:15px;line-height:1}.file-picker{display:none;position:absolute;z-index:4;left:10px;right:10px;top:88px;background:#fff;border:1px solid #ced9e8;border-radius:8px;box-shadow:0 10px 24px rgba(33,56,90,.15);padding:8px}.file-choice{height:43px;border:1px solid #dce4ee;background:#f8fafc;border-radius:7px;width:100%;display:flex;align-items:center;gap:8px;padding:0 8px;text-align:left;transition:.16s ease}.pdf{width:27px;height:31px;border-radius:5px;background:#e95353;color:white;display:grid;place-items:center;font-size:8px;font-weight:800}.upload-item{display:none;margin-top:8px;padding:8px;border:1px solid #dce5f1;border-radius:8px;background:#fff}.file-row{display:flex;align-items:center;gap:7px}.file-meta{min-width:0;flex:1}.file-name{font-weight:700;font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-status{margin-top:2px;color:#78879a;font-size:9px}.progress-track{height:5px;border-radius:999px;background:#e7edf5;margin-top:7px;overflow:hidden}.progress-bar{height:100%;width:var(--progress);border-radius:inherit;background:#2f71d8;transition:width .55s ease}.reading-result{display:none;flex-direction:column;gap:7px}.result-block{padding:8px 9px;border:1px solid #dce7f7;background:#f7faff;border-radius:8px;opacity:0;transform:translateY(5px);transition:.28s ease}.result-block b{display:block;color:#245fae;font-size:10.5px;margin-bottom:2px}.result-block p{margin:0;color:#53647a;font-size:10px;line-height:1.35}.reading-loading{display:none;align-items:center;gap:7px;padding:9px;border-radius:8px;background:#f4f7fb;color:#607086}.spin{width:14px;height:14px;border-radius:50%;border:2px solid #cfdbeb;border-top-color:#2f71d8;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}body[data-scene="reading"][data-phase="1"] .file-picker{display:block}body[data-scene="reading"][data-phase="2"] .upload-item,body[data-scene="reading"][data-phase="3"] .upload-item,body[data-scene="reading"][data-phase="4"] .upload-item,body[data-scene="reading"][data-phase="5"] .upload-item,body[data-scene="reading"][data-phase="6"] .upload-item,body[data-scene="reading"][data-phase="7"] .upload-item,body[data-scene="reading"][data-phase="8"] .upload-item,body[data-scene="reading"][data-phase="9"] .upload-item{display:block}body[data-scene="reading"][data-phase="7"] .reading-loading,body[data-scene="reading"][data-phase="8"] .reading-loading{display:flex}body[data-scene="reading"][data-phase="9"] .reading-result{display:flex}body[data-scene="reading"][data-phase="9"] .result-block{opacity:1;transform:none}
/* Seminar + Essay */
.practice-grid{grid-template-columns:1.12fr .88fr}.context-pane{padding:11px;display:flex;flex-direction:column;gap:8px}.context-empty{height:100%;display:grid;place-items:center;text-align:center;color:#8390a2}.context-card{display:none;border:1px solid #dce6f3;border-radius:8px;background:#f8fbff;padding:9px}.context-label{font-size:9px;color:#718198;text-transform:uppercase;letter-spacing:.08em}.context-title{margin-top:4px;font-size:11px;font-weight:750;line-height:1.35}.context-step{display:none;margin-top:8px;padding-top:7px;border-top:1px solid #e2e9f2;color:#53647a;font-size:10px;line-height:1.4}.auto-status{display:none;align-items:center;gap:7px;padding:7px 9px;border-radius:8px;background:#eef4ff;color:#2b64b1;font-size:10px}.auto-status .spin{width:12px;height:12px}.seminar-idea,.seminar-evidence,.seminar-follow,.essay-thesis,.essay-argument,.essay-outline,.essay-source{opacity:0;transform:translateY(5px);transition:.28s ease}body[data-scene="seminar"][data-phase="1"] .auto-status,body[data-scene="essay"][data-phase="1"] .auto-status{display:flex}body[data-scene="seminar"][data-phase="2"] .context-card,body[data-scene="seminar"][data-phase="3"] .context-card,body[data-scene="seminar"][data-phase="4"] .context-card,body[data-scene="seminar"][data-phase="5"] .context-card,body[data-scene="essay"][data-phase="2"] .context-card,body[data-scene="essay"][data-phase="3"] .context-card,body[data-scene="essay"][data-phase="4"] .context-card,body[data-scene="essay"][data-phase="5"] .context-card,body[data-scene="essay"][data-phase="6"] .context-card{display:block}body[data-scene="seminar"][data-phase="2"] .context-empty,body[data-scene="seminar"][data-phase="3"] .context-empty,body[data-scene="seminar"][data-phase="4"] .context-empty,body[data-scene="seminar"][data-phase="5"] .context-empty,body[data-scene="essay"][data-phase="2"] .context-empty,body[data-scene="essay"][data-phase="3"] .context-empty,body[data-scene="essay"][data-phase="4"] .context-empty,body[data-scene="essay"][data-phase="5"] .context-empty,body[data-scene="essay"][data-phase="6"] .context-empty{display:none}body[data-scene="seminar"][data-phase="3"] .seminar-idea,body[data-scene="seminar"][data-phase="4"] .seminar-idea,body[data-scene="seminar"][data-phase="5"] .seminar-idea,body[data-scene="seminar"][data-phase="4"] .seminar-evidence,body[data-scene="seminar"][data-phase="5"] .seminar-evidence,body[data-scene="seminar"][data-phase="5"] .seminar-follow,body[data-scene="essay"][data-phase="3"] .essay-thesis,body[data-scene="essay"][data-phase="4"] .essay-thesis,body[data-scene="essay"][data-phase="5"] .essay-thesis,body[data-scene="essay"][data-phase="6"] .essay-thesis,body[data-scene="essay"][data-phase="4"] .essay-argument,body[data-scene="essay"][data-phase="5"] .essay-argument,body[data-scene="essay"][data-phase="6"] .essay-argument,body[data-scene="essay"][data-phase="5"] .essay-outline,body[data-scene="essay"][data-phase="6"] .essay-outline,body[data-scene="essay"][data-phase="6"] .essay-source{opacity:1;transform:none}
/* Notes */
.notes-layout{grid-template-columns:1fr 1fr}.document-page{height:calc(100% - 42px);padding:12px 14px;background:#fff;overflow:hidden;cursor:text}.document-page h4{margin:0 0 7px;font-size:12px}.document-page p{margin:0 0 7px;font-family:inherit;font-size:10.5px;line-height:1.55;color:#4b5d73}.select-a,.select-b{border-radius:2px;transition:background .18s;box-decoration-break:clone;-webkit-box-decoration-break:clone}.copy-tool{display:none;position:absolute;z-index:5;left:245px;top:178px;height:29px;padding:0 9px;border:0;border-radius:7px;background:#172033;color:#fff;align-items:center;gap:5px;transition:.16s ease}.editor-toolbar{height:32px;border-bottom:1px solid #e8edf4;display:flex;align-items:center;gap:4px;padding:0 9px;color:#708095}.editor-tool{min-width:22px;height:22px;border-radius:5px;display:grid;place-items:center}.note-editor-body{height:calc(100% - 74px);padding:11px 13px;cursor:text}.note-title{font-size:14px;font-weight:760;margin-bottom:9px}.paste-hint{height:70px;border:1px dashed #b9cbe2;border-radius:8px;display:grid;place-items:center;color:#8492a5;transition:.2s ease}.paste-loading{display:none;align-items:center;gap:7px;color:#496a97}.structured-note{display:none}.structured-note h5{margin:0 0 6px;color:#285fa8;font-size:11px}.structured-note ul{margin:0;padding-left:17px}.structured-note li{margin:5px 0;font-size:10.5px;line-height:1.35}.source-tag{display:inline-block;margin-top:8px;padding:3px 6px;border-radius:5px;background:#eef4ff;color:#376eaf;font-size:9px}body[data-scene="notes"][data-phase="2"] .select-a,body[data-scene="notes"][data-phase="3"] .select-a,body[data-scene="notes"][data-phase="4"] .select-a,body[data-scene="notes"][data-phase="5"] .select-a,body[data-scene="notes"][data-phase="6"] .select-a,body[data-scene="notes"][data-phase="7"] .select-a{background:#bcd6ff}body[data-scene="notes"][data-phase="3"] .select-b,body[data-scene="notes"][data-phase="4"] .select-b,body[data-scene="notes"][data-phase="5"] .select-b,body[data-scene="notes"][data-phase="6"] .select-b,body[data-scene="notes"][data-phase="7"] .select-b{background:#bcd6ff}body[data-scene="notes"][data-phase="3"] .copy-tool{display:flex}body[data-scene="notes"][data-phase="5"] .paste-hint{display:none}body[data-scene="notes"][data-phase="5"] .paste-loading{display:flex}body[data-scene="notes"][data-phase="6"] .paste-hint,body[data-scene="notes"][data-phase="7"] .paste-hint,body[data-scene="notes"][data-phase="6"] .paste-loading,body[data-scene="notes"][data-phase="7"] .paste-loading{display:none}body[data-scene="notes"][data-phase="6"] .structured-note,body[data-scene="notes"][data-phase="7"] .structured-note{display:block}
/* Exam */
.exam-layout{grid-template-columns:205px 1fr}.tool-list{padding:9px;display:grid;gap:7px}.tool-btn{height:48px;width:100%;border:1px solid #dce4ef;border-radius:8px;background:#fff;display:flex;align-items:center;gap:8px;padding:0 9px;text-align:left;transition:.16s ease}.tool-btn.active{border-color:#75a5e9;background:#eef5ff;box-shadow:0 0 0 2px rgba(47,113,216,.08)}.tool-icon{width:29px;height:29px;border-radius:7px;background:#edf3fc;display:grid;place-items:center;color:#2f71d8;font-weight:800}.tool-copy b{display:block;font-size:10.5px}.tool-copy span{display:block;margin-top:2px;font-size:9px;color:#7a8799}.exam-result{position:relative;padding:9px;height:calc(100% - 42px)}.exam-empty{height:100%;display:grid;place-items:center;text-align:center;color:#8492a4}.tool-result{display:none;height:100%}.mindmap{position:relative;height:100%;background:linear-gradient(#f9fbfe,#f6f9fd);border:1px solid #e3eaf3;border-radius:8px;overflow:hidden}.mindmap svg{position:absolute;inset:0;width:100%;height:100%}.mindmap path{fill:none;stroke:#a9bfdc;stroke-width:1.5}.map-node{position:absolute;padding:5px 7px;border:1px solid #cbd9eb;border-radius:7px;background:#fff;font-size:9px;text-align:center;box-shadow:0 2px 5px rgba(40,67,106,.06)}.map-node.root{left:39%;top:42%;width:22%;background:#2f71d8;color:#fff;border-color:#2f71d8;font-size:10px;font-weight:750}.map-node.n1{font-weight:700;background:#edf4ff;color:#2c64ac}.map-node.a{left:5%;top:13%;width:21%}.map-node.b{left:74%;top:12%;width:21%}.map-node.c{left:5%;top:69%;width:21%}.map-node.d{left:74%;top:69%;width:21%}.map-node.s1{left:2%;top:39%;width:17%}.map-node.s2{left:22%;top:3%;width:18%}.map-node.s3{left:80%;top:39%;width:18%}.map-node.s4{left:60%;top:3%;width:18%}.map-node.s5{left:23%;top:84%;width:18%}.map-node.s6{left:60%;top:84%;width:18%}.flash-wrap{height:100%;display:grid;place-items:center;perspective:900px}.flash-card{width:310px;height:228px;position:relative;border:0;background:transparent;transform-style:preserve-3d;cursor:pointer}.flash-inner{position:absolute;inset:0;transition:transform .75s cubic-bezier(.2,.7,.25,1);transform-style:preserve-3d}.flash-face{position:absolute;inset:0;backface-visibility:hidden;border:1px solid #ccd9ea;border-radius:13px;background:#fff;box-shadow:0 10px 24px rgba(37,61,96,.10);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;text-align:center}.flash-back{transform:rotateY(180deg);background:#f7faff}.flash-term{font-size:24px;font-weight:760;color:#1d4f96}.flash-hint{margin-top:14px;color:#8390a2;font-size:10px}.flash-definition{font-size:14px;font-weight:720;color:#245a9e}.flash-source{margin-top:13px;padding:5px 8px;border-radius:6px;background:#e8f1ff;color:#476b9b;font-size:10px}.quiz-card,.guide-card{height:100%;padding:12px;border:1px solid #dfe7f2;border-radius:9px;background:#fff}.quiz-question{font-size:12px;font-weight:720;line-height:1.45}.quiz-options{margin-top:12px;display:grid;grid-template-columns:1fr 1fr;gap:8px}.quiz-option{height:48px;border:1px solid #d7e0ec;border-radius:8px;background:#f9fbfd;padding:0 10px;display:flex;align-items:center;gap:8px;text-align:left;transition:.16s ease}.quiz-option span{width:22px;height:22px;border-radius:6px;background:#eaf0f8;display:grid;place-items:center;font-weight:750}.quiz-option.chosen{border-color:#5e97e7;background:#edf4ff}.quiz-option.chosen span{background:#2f71d8;color:#fff}.guide-card{display:grid;grid-template-columns:110px 1fr;gap:11px}.guide-nav{padding:7px;border-radius:8px;background:#f3f6fa}.guide-chapter{padding:7px;border-radius:6px;font-size:9.5px}.guide-chapter.active{background:#fff;color:#2f71d8;font-weight:700;box-shadow:0 2px 7px rgba(35,60,95,.08)}.guide-content h4{margin:1px 0 7px;font-size:12px}.guide-section{padding:7px 8px;border:1px solid #dfe7f2;border-radius:7px;margin-bottom:6px}.guide-section b{display:block;font-size:10px;color:#2b63a9}.guide-section span{display:block;margin-top:2px;font-size:9.5px;line-height:1.35;color:#637388}body[data-scene="exam"][data-tool="mindmap"] .mindmap-result,body[data-scene="exam"][data-tool="flash"] .flash-result,body[data-scene="exam"][data-tool="quiz"] .quiz-result,body[data-scene="exam"][data-tool="guide"] .guide-result{display:block}body[data-scene="exam"]:not([data-tool="none"]) .exam-empty{display:none}body[data-scene="exam"][data-flipped="true"] .flash-inner{transform:rotateY(180deg)}body[data-scene="exam"][data-phase="9"] .quiz-option.correct{border-color:#5e97e7;background:#edf4ff}body[data-scene="exam"][data-phase="9"] .quiz-option.correct span{background:#2f71d8;color:#fff}.tool-icon img{width:17px;height:17px;display:block}.count-one,.uploaded-label,.parsed-label{display:none}body[data-scene="reading"]:not([data-phase="0"]):not([data-phase="1"]) .count-zero{display:none}body[data-scene="reading"]:not([data-phase="0"]):not([data-phase="1"]) .count-one{display:inline}body[data-scene="reading"][data-phase="7"] .uploading-label,body[data-scene="reading"][data-phase="8"] .uploading-label,body[data-scene="reading"][data-phase="9"] .uploading-label{display:none}body[data-scene="reading"][data-phase="7"] .uploaded-label,body[data-scene="reading"][data-phase="8"] .uploaded-label{display:inline}body[data-scene="reading"][data-phase="9"] .parsed-label{display:inline}.mode-badge{visibility:hidden}body[data-scene="seminar"]:not([data-phase="0"]) .mode-badge,body[data-scene="essay"]:not([data-phase="0"]) .mode-badge{visibility:visible}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}.demo-cursor{display:none}}