:root{--bg-body: #050505;--primary: #3b82f6;--text-main: #0f172a;--panel-bg: #111;--gold: #fbbf24;--avatar-pool: 60px;--avatar-group: 80px;--neon-color: #00ffff}body{font-family:Inter,sans-serif;background-color:var(--bg-body);color:#fff;margin:0;padding:0;display:flex;flex-direction:column;align-items:center;height:100vh;overflow:hidden;-webkit-user-select:none;user-select:none}::-webkit-scrollbar{width:14px;height:14px}::-webkit-scrollbar-thumb{background:var(--gold);border-radius:7px;border:3px solid #161616}::-webkit-scrollbar-track{background:#333;border-radius:7px}#app-container{display:none;width:100%;height:100vh;padding:10px;box-sizing:border-box;gap:10px;position:relative;z-index:1}#login-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:#fff;z-index:9999;display:flex}.split-container{display:flex;width:100%;height:100%}.login-left-panel{flex:0 0 45%;min-width:500px;background:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:60px;box-sizing:border-box;z-index:5;box-shadow:20px 0 50px #0000000d}.login-form-wrapper{width:100%;max-width:550px}.modern-input{padding:16px 20px;font-size:1.1rem;border-radius:12px;background:#f1f5f9;border:2px solid transparent;width:100%;box-sizing:border-box;color:#333;transition:.3s}.modern-input:focus{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px #3b82f61a;outline:none}.input-group{margin-bottom:20px;text-align:left}.input-group label{display:block;font-size:.85rem;color:#64748b;margin-bottom:8px;font-weight:600}.login-btn-wide{width:100%;padding:18px;font-size:1.1rem;border-radius:12px;letter-spacing:1px;background:var(--text-main);color:#fff;border:none;font-weight:700;cursor:pointer;transition:.2s;display:flex;justify-content:center;align-items:center;gap:10px}.login-btn-wide:hover{transform:translateY(-2px);box-shadow:0 5px 15px #0000001a}.login-btn-wide.secondary{background:#fff;border:1px solid #cbd5e1;color:#475569}.login-btn-wide.secondary:hover{border-color:var(--primary);color:var(--primary);background:#eff6ff}.auth-tabs{display:flex;gap:30px;margin-bottom:35px;border-bottom:2px solid #f1f5f9}.auth-tab{font-size:1.1rem;padding-bottom:12px;cursor:pointer;color:#94a3b8;font-weight:600;transition:.3s;margin-bottom:-2px;border-bottom:2px solid transparent}.auth-tab.active{color:var(--primary);border-bottom-color:var(--primary)}.link-text{color:var(--primary);font-weight:700;cursor:pointer}.link-text:hover{text-decoration:underline}.login-right-panel{flex:1;background:radial-gradient(circle at center,#1e293b,#0f172a);position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:center;align-items:center;color:#fff;text-align:center}.hero-title{font-family:Ma Shan Zheng,cursive;font-size:5.5rem;margin:0;line-height:1.2;background:linear-gradient(to right,#60a5fa,#c084fc,#f472b6);-webkit-background-clip:text;color:transparent;filter:drop-shadow(0 4px 20px rgba(139,92,246,.4));animation:textShine 5s linear infinite;background-size:200% auto}@keyframes textShine{to{background-position:200% center}}.particles-container{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1}.particle{position:absolute;border-radius:50%;background:#fff;opacity:0;box-shadow:0 0 10px #fff;animation:floatParticle 8s infinite linear}.particle:nth-child(1){left:10%;width:4px;height:4px;animation-duration:6s;animation-delay:0s}.particle:nth-child(2){left:30%;width:6px;height:6px;animation-duration:9s;animation-delay:1s}.particle:nth-child(3){left:70%;width:3px;height:3px;animation-duration:7s;animation-delay:2s}.particle:nth-child(4){left:50%;width:5px;height:5px;animation-duration:11s;animation-delay:0s}.particle:nth-child(5){left:90%;width:4px;height:4px;animation-duration:8s;animation-delay:3s}.particle:nth-child(6){left:20%;width:2px;height:2px;animation-duration:5s;animation-delay:1.5s}.particle:nth-child(7){left:80%;width:6px;height:6px;animation-duration:12s;animation-delay:4s}.particle:nth-child(8){left:40%;width:3px;height:3px;animation-duration:6s;animation-delay:2.5s}.particle:nth-child(9){left:60%;width:4px;height:4px;animation-duration:9s;animation-delay:1s}.particle:nth-child(10){left:15%;width:5px;height:5px;animation-duration:10s;animation-delay:3s}@keyframes floatParticle{0%{bottom:-20px;opacity:0;transform:scale(.5)}20%{opacity:.8}80%{opacity:.5}to{bottom:100%;opacity:0;transform:scale(1.2)}}.tech-bg-shapes .shape{position:absolute;border-radius:50%;filter:blur(80px);opacity:.3}.s1{width:500px;height:500px;background:#3b82f6;top:-100px;right:-100px;animation:glow 10s infinite alternate}.s2{width:400px;height:400px;background:#8b5cf6;bottom:-50px;left:-50px;animation:glow 8s infinite alternate-reverse}@keyframes glow{0%{transform:scale(1);opacity:.3}to{transform:scale(1.1);opacity:.5}}.brand-content{position:relative;z-index:10;padding:40px}@media (max-width: 900px){.login-right-panel{display:none}.login-left-panel{flex:1}}#register-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:#000;z-index:9999;display:flex;flex-direction:column;justify-content:center;align-items:center}.login-card{background:#1a1a1a;padding:40px;border-radius:20px;border:1px solid #333;width:350px;box-shadow:0 0 50px #3b82f633;text-align:center}.login-title{font-family:Zcool KuaiLe;font-size:2rem;color:#fff;margin-bottom:20px;text-shadow:0 0 10px #3b82f6}.login-input{background:#333;border:1px solid #555;color:#fff;padding:12px 20px;border-radius:10px;outline:none;width:100%;box-sizing:border-box;font-size:1rem;margin-bottom:15px;text-align:left}.login-btn{background:linear-gradient(45deg,#2563eb,#7c3aed);border:none;padding:12px;color:#fff;border-radius:10px;cursor:pointer;font-weight:700;font-size:1.1rem;transition:.3s;width:100%;margin-top:10px}.login-btn:hover{transform:scale(1.02);box-shadow:0 0 20px #3b82f680}.toggle-link{color:#aaa;margin-top:15px;font-size:.9rem;cursor:pointer;text-decoration:underline;display:block}.error-msg{color:#ef4444;font-size:.9rem;margin-top:10px;min-height:20px}#lecture-panel{flex:0;background:var(--panel-bg);border-radius:16px;border:1px solid #333;display:flex;flex-direction:column;overflow:hidden;transition:all .5s;opacity:0;position:relative}#lecture-panel.active{flex:1.2;opacity:1;margin-right:5px}.panel-tabs{display:flex;background:#1a1a1a;border-bottom:1px solid #333;z-index:20;position:relative}.p-tab{flex:1;padding:12px 5px;text-align:center;cursor:pointer;color:#666;font-weight:700;font-size:.9rem;transition:.3s;border-bottom:2px solid transparent;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.p-tab:hover{color:#ccc}.p-tab.active{color:var(--primary);border-bottom-color:var(--primary);background:#3b82f61a}.whiteboard-wrapper{flex:1;overflow:hidden;background:#000;display:flex}.wb-pages-sidebar{width:132px;background:#0f0f0ffa;border-right:1px solid #222;display:flex;flex-direction:column;z-index:120;transition:width .2s ease}.wb-pages-actions{display:flex;gap:8px;padding:10px;border-bottom:1px solid #222;justify-content:center}.wb-page-action{width:44px;height:36px;border-radius:10px;border:1px solid #333;background:#111;color:#ddd;cursor:pointer;display:flex;align-items:center;justify-content:center}.wb-page-action:hover{background:#1a1a1a}.wb-page-action:disabled{opacity:.4;cursor:not-allowed}.wb-pages-list{flex:1;overflow-y:auto;padding:10px;display:flex;flex-direction:column;gap:10px}.wb-page-thumb{width:100%;border-radius:12px;border:1px solid #222;background:#0b0b0b;color:#aaa;padding:10px;cursor:pointer;display:flex;flex-direction:column;gap:8px}.wb-page-thumb.active{border-color:var(--primary);box-shadow:0 0 0 2px #3b82f640}.wb-page-thumb img{width:100%;height:70px;object-fit:cover;border-radius:8px;background:#000}.wb-page-thumb .wb-page-label{font-size:.85rem;font-weight:700;color:#ddd;text-align:center}.wb-pages-sidebar.collapsed{width:44px}.wb-pages-sidebar.collapsed .wb-pages-actions{flex-direction:column;gap:10px;padding:10px 0}.wb-pages-sidebar.collapsed #wb-page-add-btn,.wb-pages-sidebar.collapsed #wb-page-del-btn,.wb-pages-sidebar.collapsed .wb-pages-list{display:none}.wb-stage{flex:1;position:relative;overflow:hidden}.zoom-container{width:100%;height:100%;transform-origin:top left;transition:transform .1s;display:flex;flex-direction:column;position:relative}.drawing-canvas{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:50;touch-action:none}.drawing-canvas.active{pointer-events:auto;cursor:crosshair}.wb-toolbar{position:absolute;top:20px;left:50%;transform:translate(-50%);background:#1e1e1ef2;padding:8px 15px;border-radius:12px;border:1px solid #444;display:flex;gap:10px;z-index:100;opacity:0;transition:all .3s ease;pointer-events:none;align-items:center;box-shadow:0 5px 20px #00000080;overflow:hidden}#lecture-panel:hover .wb-toolbar{opacity:1;pointer-events:auto}.wb-toolbar.minimized{width:40px;padding:5px;gap:0;border-radius:50%;justify-content:center;background:#141414cc}.wb-toolbar.minimized>*:not(.toggle-btn){display:none!important}.wb-btn{background:#333;border:none;color:#ccc;width:36px;height:36px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;transition:.2s;position:relative}.wb-btn.active{background:var(--primary);color:#fff}.toggle-btn{background:#444;color:#fbbf24;z-index:101;flex-shrink:0}.color-palette{display:flex;gap:5px;align-items:center;background:#111;padding:4px;border-radius:20px;margin-right:5px}.color-dot{width:20px;height:20px;border-radius:50%;cursor:pointer;border:2px solid transparent;transition:transform 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#222;border-radius:12px;overflow:hidden;display:flex;flex-direction:column}.courseware-right{flex:1;background:#111;border:1px solid #222;border-radius:12px;overflow:hidden;display:flex;flex-direction:column}.courseware-list{flex:1;overflow:auto;padding:10px}.courseware-item{display:flex;align-items:center;gap:12px;padding:10px;border-radius:12px;border:1px solid #222;background:#0b0b0b;cursor:pointer;margin-bottom:10px}.courseware-item:hover{background:#111;border-color:#2a2a2a}.courseware-item.active{border-color:var(--primary);box-shadow:0 0 0 2px #3b82f633}.courseware-icon{width:36px;height:36px;border-radius:10px;background:#111;border:1px solid #222;display:flex;align-items:center;justify-content:center;color:#fbbf24;flex-shrink:0}.courseware-meta{flex:1;min-width:0}.courseware-name{font-weight:800;color:#e5e7eb;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.courseware-sub{font-size:.85rem;color:#94a3b8;margin-top:2px}.courseware-preview{flex:1;display:flex;align-items:center;justify-content:center;color:#94a3b8;background:#0b0b0b}#roster-panel{flex:1;display:flex;flex-direction:column;height:100%;background:var(--panel-bg);border-radius:16px;border:1px solid #333;overflow:hidden;position:relative}.header-hud{padding:15px 25px;display:flex;justify-content:space-between;align-items:center;background:#161616;border-bottom:1px solid #333;height:70px;flex-shrink:0}.header-center-title{position:absolute;left:50%;transform:translate(-50%);font-family:Russo One,sans-serif;font-size:2.2rem;color:#fff;text-shadow:0 0 5px #fff,0 0 10px #fff,0 0 20px #00ffff,0 0 40px #00ffff;display:flex;flex-direction:column;align-items:center;line-height:1;z-index:10}.roster-split-layout{display:flex;flex:1;overflow:hidden;gap:15px;padding:15px;position:relative}.all-students-area{width:0;transition:.3s;overflow:hidden;display:flex;flex-direction:column;background:#0a0a0a;border-radius:10px}.all-students-area.open{width:200px;border:1px solid #333;padding:10px}.groups-stage-area{flex:1;display:grid;grid-template-columns:1fr 1fr;grid-auto-rows:max-content;align-content:start;overflow-y:auto;gap:15px;padding-bottom:80px}.group-lane{background:#161616;border:1px solid #333;border-radius:12px;display:flex;flex-direction:column;overflow:visible;position:relative;z-index:1;transition:all .3s;height:fit-content;min-height:220px}.group-lane.locked{border:2px solid #ef4444!important;background:linear-gradient(180deg,#450a0af2,#1a0505)!important;box-shadow:0 0 25px #ef444499,0 -20px 60px #dc262680 inset!important;animation:flame-burn .8s infinite alternate cubic-bezier(.4,0,.2,1)!important;transform:translateY(-5px) scale(1.01);z-index:20}.group-lane.locked .group-header{background:linear-gradient(90deg,#991b1b,#7f1d1d)!important;color:#fee2e2!important;border-bottom:1px solid #ef4444!important;text-shadow:0 0 10px #f87171;font-weight:900}@keyframes flame-burn{0%{border-color:#f87171;box-shadow:0 0 15px #ef444480,0 -10px 30px #991b1b66 inset}to{border-color:#ef4444;box-shadow:0 0 40px #ef4444e6,0 -30px 70px #dc2626b3 inset}}.group-header{padding:10px 15px;background:#222;border-bottom:1px solid #333;font-size:.9rem;color:#aaa;display:flex;justify-content:space-between;border-radius:12px 12px 0 0;position:relative;z-index:5;cursor:pointer;transition:.2s}.group-content{padding:20px 10px 10px;display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:15px;height:auto}.pool-content{padding:5px;overflow-y:auto;flex:1;display:grid;grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:8px}.card{position:relative;width:100%;min-height:230px;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;cursor:pointer;transition:.2s;overflow:visible;padding:15px 0 40px;background:#222;z-index:10}.effect-layer{position:absolute;top:0;left:0;width:100%;height:100%;border-radius:12px;overflow:hidden;z-index:0;pointer-events:none;border:1px solid rgba(255,255,255,.1);transition:all .3s}.content-layer{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%}.card.called{opacity:1;filter:none;pointer-events:none}.card.called:after{content:"";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;top:10px;left:15px;color:#ef4444;font-size:4rem;z-index:100;text-shadow:0 2px 10px black;opacity:.9}.card:hover{transform:translateY(-5px) scale(1.02);z-index:50}.card.highlight{transform:scale(1.15)!important;z-index:100}.card.highlight .effect-layer{box-shadow:0 0 30px #fffc;border-color:#fff}.avatar-wrapper{position:relative;width:var(--avatar-group);height:var(--avatar-group);margin-bottom:5px;display:flex;justify-content:center;align-items:center;z-index:2}.pool-content .avatar-wrapper{width:var(--avatar-pool);height:var(--avatar-pool)}.avatar-img{width:100%;height:100%;border-radius:50%;object-fit:cover;z-index:2;border:3px solid #444;background:#000;transition:border-color .3s}.name-tag{font-size:1.1rem;font-weight:700;color:#fff;z-index:2;margin-top:2px;text-shadow:0 2px 4px rgba(0,0,0,.5)}.card-stats{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:10px;font-size:.8rem;margin-top:5px;color:#aaa;z-index:2;width:100%}.stat-w{color:#4ade80;font-weight:700}.stat-l{color:#f87171;font-weight:700}.rank-title-text{position:absolute;bottom:8px;left:50%;transform:translate(-50%);width:100%;text-align:center;font-size:1.2rem;font-weight:900;font-family:Zcool KuaiLe,sans-serif;letter-spacing:1px;z-index:20;white-space:nowrap}.card-sign-small{font-family:Orbitron,sans-serif;font-size:1rem;color:var(--neon-color);margin-top:2px;font-weight:900;text-shadow:0 0 5px var(--neon-color),0 0 10px #0000ff;z-index:2;letter-spacing:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:90%}.pool-content .card{min-height:110px;padding-bottom:5px}.pool-content .rank-title-text{position:static;transform:none;font-size:.8rem}.controls{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:#1e1e1ee6;padding:10px 25px;border-radius:40px;display:flex;gap:15px;border:1px solid #444;z-index:1000;box-shadow:0 10px 40px #000c;transition:all .3s ease;overflow:hidden}.controls.minimized{width:50px;padding:0;height:50px;border-radius:50%;justify-content:center;align-items:center;background:#1e1e1ecc}.controls.minimized>*:not(.toggle-btn){display:none}.ctrl-btn{background:#444;border:none;color:#ccc;width:50px;height:50px;border-radius:50%;cursor:pointer;transition:.2s;font-size:1.2rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}.ctrl-btn:hover{background:#666;color:#fff;transform:scale(1.1)}.ctrl-btn.primary{background:var(--primary);color:#fff}.ctrl-btn.pk{background:linear-gradient(135deg,#ec4899,#8b5cf6);color:#fff}#winner-overlay{position:fixed;top:0;left:0;width:100%;height:100%;z-index:2000;background:#000000fa;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:none}#winner-overlay.warning-mode{animation:alarm-flash .5s infinite alternate}.pk-layout-wrapper{display:flex;width:95%;max-width:1600px;height:100%;margin:auto;align-items:center;gap:30px;padding:20px 0;box-sizing:border-box}.pk-left-panel{flex:0 0 45%;height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 40px;border-right:1px solid rgba(255,255,255,.1);box-sizing:border-box;position:relative}.pk-right-panel{flex:1;height:90%;display:flex;flex-direction:column;position:relative;justify-content:center}.vs-column{display:flex;flex-direction:column;align-items:center;justify-content:center;width:80px;z-index:20}.vs-text{font-size:7rem;font-weight:900;font-style:italic;line-height:.9;background:linear-gradient(to bottom,#f59e0b,#ea580c);-webkit-background-clip:text;color:transparent;filter:drop-shadow(0 0 20px rgba(234,88,12,.9));animation:vs-pulse 1.5s infinite alternate}.pk-card-large{position:relative;width:240px;height:380px;border-radius:20px;background:#222;display:flex;flex-direction:column;align-items:center;padding-bottom:50px;transition:transform .3s;border:1px solid rgba(255,255,255,.1)}.pk-card-large .avatar-wrapper{width:140px;height:140px;margin:25px 0;position:relative;border-radius:50%;border:5px solid #444;overflow:visible}.pk-card-large .avatar-img{width:100%;height:100%;object-fit:cover}.pk-name{font-size:2.2rem;font-weight:900;color:#fff;margin-bottom:10px;font-family:Zcool KuaiLe,sans-serif}.pk-sign{background:#0009;border:1px solid #00ffff;color:#0ff;padding:8px 30px;border-radius:50px;font-weight:900;font-size:1.5rem;box-shadow:0 0 15px #00ffff4d;max-width:90%}.win-loss-bar{font-size:1.1rem;padding:8px 20px;margin-top:15px;background:#0009;display:flex;gap:15px;border-radius:20px;color:#aaa}.win-tag{color:#4ade80;font-weight:700}.loss-tag{color:#f87171;font-weight:700}.pk-rank-text{width:100%;text-align:center;font-family:Zcool KuaiLe,sans-serif;font-size:2rem;font-weight:900;color:#fff;margin-top:auto;padding-bottom:15px}.pk-judge-btn{padding:12px 35px;font-size:1.4rem;font-family:Zcool KuaiLe,sans-serif;border-radius:50px;border:2px solid #fff;cursor:pointer;transition:.3s cubic-bezier(.175,.885,.32,1.275);display:flex;align-items:center;gap:10px}.pk-judge-btn.btn-win{background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;box-shadow:0 0 20px #22c55e66}.pk-judge-btn:hover{transform:scale(1.1) translateY(-5px);box-shadow:0 10px 30px #22c55e99}.pk-judge-btn:disabled{opacity:.5;cursor:not-allowed;filter:grayscale(1)}.btn-loss{background:linear-gradient(135deg,#ef4444,#dc2626);box-shadow:0 0 15px #ef4444;color:#fff}.loser-effect:after{content:"😭";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:100px;z-index:100;animation:pop-in .5s forwards}.loser-effect .avatar-img{filter:grayscale(100%)}.question-stage{width:100%;height:100%;background:#161616;border:1px solid #333;border-radius:20px;position:relative;display:flex;flex-direction:column;align-items:center;overflow:hidden}.q-timer{position:absolute;top:10px;left:50%;transform:translate(-50%);font-size:1.5rem;color:#3b82f6;font-family:monospace;font-weight:700;border:3px solid #3b82f6;border-radius:50%;width:60px;height:60px;display:flex;align-items:center;justify-content:center;background:#000c;z-index:150}.q-timer.urgent{width:80px;height:80px;font-size:2.5rem;color:#ef4444;border-color:#ef4444;box-shadow:0 0 30px #ef4444;animation:timer-shake .1s infinite}#question-wrapper{width:100%;height:100%;overflow:auto;padding-top:80px}#question-content{display:flex;flex-direction:column;align-items:center;min-height:100%;color:#fff;font-size:1.8rem;padding:20px}#question-content img{max-width:98%;box-shadow:0 4px 15px #00000080}.q-text-content{width:95%;margin:0 auto;font-size:1.8rem;line-height:1.5;color:#fff;text-align:justify;white-space:pre-wrap;padding-bottom:50px}#answer-content{position:absolute;bottom:20px;background:#000000f2;border:1px solid #4ade80;color:#4ade80;padding:15px 30px;border-radius:10px;font-size:1.5rem;display:none;z-index:60}.show-answer-btn{position:absolute;bottom:10px;right:10px;background:#ffffff1a;border:1px solid #555;color:#ccc;padding:5px 15px;border-radius:20px;cursor:pointer;z-index:20}#timer-select{position:absolute;top:25px;left:50%;transform:translate(-120px);z-index:160;background:#333;color:#3b82f6;border:1px solid #555;padding:5px;border-radius:5px;cursor:pointer}.q-close-btn{position:absolute;top:20px;right:20px;z-index:200;background:#444;border:2px solid #666;color:#fff;width:40px;height:40px;border-radius:50%;cursor:pointer;font-size:1.2rem}.q-zoom-controls{position:absolute;top:20px;right:80px;z-index:150;display:flex;gap:5px}.zoom-btn{background:#323232e6;color:#fff;border:1px solid #555;width:35px;height:35px;border-radius:50%;cursor:pointer}@keyframes vs-pulse{0%{transform:scale(1);filter:drop-shadow(0 0 15px rgba(234,88,12,.8))}to{transform:scale(1.1);filter:drop-shadow(0 0 30px rgba(255,69,0,1))}}@keyframes alarm-flash{0%{box-shadow:inset 0 0 0 transparent}to{box-shadow:inset 0 0 150px #f009;border:2px solid red}}@keyframes timer-shake{0%{transform:translate(-52%)}to{transform:translate(-48%)}}@keyframes pop-in{0%{transform:translate(-50%,-50%) scale(0)}to{transform:translate(-50%,-50%) scale(1)}}#single-mode-result-layer{position:absolute;top:70px;left:0;width:100%;height:calc(100% - 70px);background:#000000f2;z-index:500;display:none;flex-direction:column;align-items:center;justify-content:center}.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#000000d9;z-index:3000;justify-content:center;align-items:center;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal-box{background:#1e1e1e;padding:20px;border-radius:12px;border:1px solid #444;color:#fff;position:relative}#profile-box{background:#1e1e1e;padding:0;border-radius:20px;width:750px;height:85vh;border:1px solid #444;position:relative;background-size:cover;background-position:center;display:flex;flex-direction:column;overflow-y:auto;box-shadow:0 30px 60px #000c}.close-modal{position:absolute;top:20px;right:20px;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;z-index:20;text-shadow:0 2px 5px black}.profile-top-section{flex:1;display:flex;align-items:center;justify-content:center;gap:40px;padding:20px;position:relative;z-index:2;background:linear-gradient(to bottom,#0000001a,#0009)}.profile-card-container{transform:none;flex:0 0 280px;display:flex;justify-content:center;align-items:center;margin-right:20px}#profile-preview-card{width:100%;min-height:380px}.profile-info-right{flex:1;display:flex;flex-direction:column;justify-content:center;text-shadow:0 2px 10px rgba(0,0,0,.9)}.info-name{font-size:3.5rem;font-weight:900;margin:0;font-family:Ma Shan Zheng;color:#fff;line-height:1.2}.info-rank{font-size:1.5rem;color:#ddd;margin-bottom:20px;font-weight:700;display:flex;align-items:center;gap:10px}.tech-sign-display{font-family:Orbitron,Russo One,sans-serif;font-size:2.5rem;color:var(--neon-color);text-shadow:0 0 10px var(--neon-color),0 0 20px #0000ff;letter-spacing:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:400px;font-weight:900}.profile-controls{background:#141414f2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid rgba(255,255,255,.1);padding:20px;display:flex;flex-direction:column;gap:15px;z-index:5;flex-shrink:0}.stat-row{display:flex;gap:30px;align-items:flex-end}.stat-item{display:flex;flex-direction:column;gap:5px}.stat-label{font-size:.8rem;color:#aaa;font-weight:700}.stat-control{display:flex;align-items:center;gap:10px;background:#333;padding:5px 10px;border-radius:20px}.stat-btn{width:24px;height:24px;border-radius:50%;border:none;background:#555;color:#fff;cursor:pointer;font-weight:700;display:flex;align-items:center;justify-content:center}.stat-btn:hover{background:#777}.stat-val{font-size:1.1rem;width:30px;text-align:center;font-family:Inter;font-weight:700}.asset-row{display:flex;gap:20px;flex:1;overflow:hidden;min-height:140px}.asset-group{display:flex;flex-direction:column;gap:5px;flex:1;min-width:0}.asset-header{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:#aaa}.sm-link{color:var(--primary);cursor:pointer;text-decoration:none;font-size:.75rem}.grid-scroll{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;overflow-y:auto;padding:10px;background:#0000004d;border-radius:8px;height:120px}.avatar-opt{width:100%;aspect-ratio:1;border-radius:50%;cursor:pointer;border:2px solid transparent}.avatar-opt:hover{transform:scale(1.1)}.bg-opt{width:100%;height:60px;border-radius:6px;cursor:pointer;border:2px solid transparent;object-fit:cover;object-position:center center}.save-btn-full{width:100%;background:var(--primary);color:#fff;border:none;padding:12px;border-radius:8px;font-weight:700;cursor:pointer;font-size:1rem;margin-top:auto}.save-btn-full:hover{background:#2563eb}#race-modal .modal-box{width:95vw;height:95vh;max-width:none;background:#0f0f0f;display:flex;flex-direction:column}.race-scroll-view{flex:1;border:1px solid #333;background:#1a1a1a;border-radius:8px;overflow-x:auto;overflow-y:auto;position:relative;margin-top:10px;box-shadow:inset 0 0 50px #000c}.race-track-board{position:relative;padding-top:60px;padding-bottom:20px;min-height:100%;box-sizing:border-box}.race-lane-row{height:80px;border-bottom:1px solid rgba(255,255,255,.05);display:flex;align-items:center;position:relative;background:linear-gradient(90deg,#222,#111 80px)}.lane-number{width:40px;height:40px;background:#2a2a2a;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.1rem;font-weight:900;color:#555;position:absolute;left:10px;z-index:5;border:2px solid #333;box-shadow:0 4px 10px #00000080}.milestone-line{position:absolute;top:10px;bottom:0;width:2px;z-index:3;pointer-events:none;border-left:2px dashed rgba(255,255,255,.3)}.milestone-flag{position:absolute;top:-10px;transform:translate(-50%);padding:5px 10px;border-radius:4px;font-weight:700;font-size:.9rem;color:#000;box-shadow:0 0 15px currentColor;z-index:4;font-family:Orbitron}.race-lane-student{position:absolute;display:flex;align-items:center;flex-direction:column;z-index:10;transition:left 2.5s cubic-bezier(.25,.46,.45,.94);transform:translate(-50%,-50%);top:50%}.r-avatar{width:42px;height:42px;border-radius:50%;border:2px solid #fff;object-fit:cover;box-shadow:0 4px 8px #000c;background:#000;position:relative;z-index:2}.r-info{position:absolute;top:-25px;font-size:.85rem;white-space:nowrap;text-shadow:0 2px 4px #000;font-weight:900;z-index:3;letter-spacing:1px}.r-score-tag{position:absolute;bottom:-10px;font-size:.75rem;padding:1px 6px;border-radius:10px;font-weight:700;color:#000;box-shadow:0 2px 5px #000c;z-index:3}.crown-gold{color:gold;text-shadow:0 0 10px #eab308;font-size:28px}.crown-silver{color:#e2e8f0;text-shadow:0 0 10px #94a3b8;font-size:26px}.crown-bronze{color:#d97706;text-shadow:0 0 10px #78350f;font-size:26px}.race-normal-rank{font-size:20px;color:#fffc}#analysis-modal .modal-box{width:90vw;height:90vh;background:#0a0a0a;display:flex;flex-direction:column;overflow:hidden;padding:0}.analysis-header{background:#161616;padding:15px 25px;border-bottom:1px solid #333;display:flex;justify-content:space-between;align-items:center}.analysis-content{flex:1;overflow-y:auto;padding:25px;display:grid;grid-template-columns:2fr 1fr;gap:20px;height:100%;box-sizing:border-box}.charts-column{display:flex;flex-direction:column;gap:20px;overflow-y:auto;padding-right:10px}.chart-container{background:#1a1a1a;border:1px solid #333;border-radius:12px;padding:15px;display:flex;flex-direction:column;height:350px;position:relative;flex-shrink:0}.chart-container.with-sidebar{display:grid;grid-template-columns:60px 1fr;gap:10px}.chart-sidebar{display:flex;flex-direction:column;gap:5px;justify-content:center}.sub-btn-vertical{background:#333;border:1px solid #555;color:#aaa;padding:8px 5px;border-radius:4px;font-size:.8rem;cursor:pointer;transition:.2s;writing-mode:vertical-rl;text-orientation:upright;letter-spacing:2px;display:flex;align-items:center;justify-content:center;min-height:50px}.sub-btn-vertical:hover,.sub-btn-vertical.active{background:var(--primary);color:#fff;border-color:var(--primary)}.chart-title{font-size:1.1rem;font-weight:700;color:#ddd;margin-bottom:10px;border-left:4px solid 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#333;font-size:.9rem}.rank-item:last-child{border-bottom:none}.rank-badge{width:24px;height:24px;border-radius:50%;background:#333;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;margin-right:10px;color:#aaa;flex-shrink:0}.rank-top-1{background:gold;color:#000}.rank-top-2{background:silver;color:#000}.rank-top-3{background:#cd7f32;color:#000}.rank-details{font-size:.75rem;color:#666;margin-left:auto;margin-right:10px;text-align:right}.rank-score-main{font-weight:700;color:var(--primary);font-size:1rem;width:40px;text-align:right}.score-total{color:#ef4444;font-weight:900}.rank-comment{color:#fbbf24;font-family:Ma Shan Zheng;font-size:1rem;margin-left:10px}.advice-box{background:linear-gradient(135deg,#1e3a8a,#1e1e1e);border:1px solid #3b82f6;border-radius:12px;padding:20px;color:#bfdbfe;font-size:.95rem;line-height:1.6}.upload-section{background:#222;padding:20px;border-radius:12px;border:1px dashed #555;text-align:center;margin-bottom:10px;display:flex;gap:10px;justify-content:center;align-items:center}.upload-btn-ui{background:var(--primary);border:none;color:#fff;padding:10px 25px;border-radius:20px;cursor:pointer;font-weight:700;font-size:1rem;transition:.2s;display:inline-flex;align-items:center;gap:8px}.upload-btn-ui:hover{transform:scale(1.05)}.btn-trend{background:linear-gradient(135deg,#ec4899,#8b5cf6)}#trend-section{display:none;height:100%;flex-direction:column;gap:20px}#single-report-section{display:contents}.ai-floater{position:absolute;bottom:20px;left:20px;z-index:200;display:flex;align-items:flex-end;gap:15px;animation:slide-up .3s cubic-bezier(.175,.885,.32,1.275)}.ai-avatar-box{width:60px;height:60px;background:linear-gradient(135deg,#3b82f6,#8b5cf6);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:30px;box-shadow:0 5px 15px #00000080;border:3px solid white;position:relative}.ai-avatar-box.listening{animation:pulse-red 1.5s infinite;background:#ef4444;border-color:#fca5a5}.ai-avatar-box.speaking{animation:bounce 1s infinite}.ai-chat-bubble{background:#ffffffb3;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);border:1px solid rgba(255,255,255,.8);box-shadow:0 8px 32px #1f26871a;color:#1e293b;border-radius:20px 20px 20px 5px;padding:15px 20px;max-width:350px;min-height:50px;display:flex;flex-direction:column;justify-content:center}#ai-text-content{color:#334155!important}@keyframes slide-up{0%{transform:translateY(50px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes pulse-red{0%{box-shadow:0 0 #ef4444b3}70%{box-shadow:0 0 0 20px #ef444400}to{box-shadow:0 0 #ef444400}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.card{background:linear-gradient(180deg,#fff,#f8fafc);border:2px solid #f1f5f9}.tech-ai-letter{font-family:Inter,sans-serif;font-weight:900;font-style:italic;font-size:5rem;background:linear-gradient(180deg,#fff,#0ff);-webkit-background-clip:text;color:transparent;text-shadow:0 0 15px rgba(0,255,255,.6);letter-spacing:-3px;margin-right:10px;vertical-align:middle}.beast-card{width:240px;height:140px;background:#0f172acc;border:2px solid #334155;border-radius:12px;position:relative;overflow:hidden;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 10px #0f172a}.beast-card:hover{transform:translateY(-5px);border-color:#3b82f6;box-shadow:0 15px #1e3a8a,0 0 30px #3b82f64d}.beast-card:active{transform:translateY(0);box-shadow:0 5px #1e3a8a}.beast-card-title{font-family:Inter,sans-serif;font-size:1.8rem;font-weight:900;color:#fff;text-shadow:0 2px 5px black;z-index:2}.beast-card-sub{font-size:.8rem;color:#94a3b8;margin-top:5px;font-weight:700;text-transform:uppercase;letter-spacing:1px;z-index:2}.beast-bg-glow{position:absolute;width:150%;height:150%;background:conic-gradient(from 0deg,transparent 0%,rgba(59,130,246,.1) 20%,transparent 40%);animation:radarSpin 4s linear infinite;top:-25%;left:-25%;z-index:1;pointer-events:none}.beast-create-btn{width:240px;height:140px;background:#ffffff0d;border:2px dashed #475569;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:.3s;color:#64748b}.beast-create-btn:hover{border-color:#10b981;color:#10b981;background:#10b9811a;box-shadow:0 0 30px #10b98133}.beast-icon-circle{width:50px;height:50px;border-radius:50%;border:2px solid currentColor;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:10px}.beast-delete-btn{position:absolute;top:10px;right:10px;width:32px;height:32px;border-radius:50%;background:#0009;border:1px solid #ef4444;color:#ef4444;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:50;transition:all .2s ease;opacity:0;transform:scale(.8)}.beast-card:hover .beast-delete-btn{opacity:1;transform:scale(1)}.beast-delete-btn:hover{background:#ef4444;color:#fff;transform:scale(1.1);box-shadow:0 0 10px #ef4444}#roller-modal{z-index:99999!important;background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:none;align-items:center;justify-content:center}.roller-modal-box{width:600px;height:500px;background:#ffffffe6;border:1px solid #fff;border-radius:30px;box-shadow:0 20px 60px #0000004d;display:flex;flex-direction:column;overflow:hidden;animation:popIn .3s ease-out}@keyframes popIn{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.roller-header{padding:25px;text-align:center;border-bottom:1px solid rgba(0,0,0,.05);background:#fff}.roller-stage{flex:1;position:relative;display:flex;justify-content:space-around;align-items:center;background:linear-gradient(180deg,#f8fafc,#fff,#f8fafc);overflow:hidden;cursor:grab}.roller-stage:active{cursor:grabbing}.roller-highlight-bar{position:absolute;top:50%;left:0;width:100%;height:60px;transform:translateY(-50%);background:#3b82f60d;border-top:1px solid rgba(59,130,246,.2);border-bottom:1px solid rgba(59,130,246,.2);pointer-events:none;z-index:0}.roller-column{width:160px;height:100%;overflow-y:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:y mandatory;padding:120px 0;box-sizing:border-box;z-index:10;position:relative}.roller-column::-webkit-scrollbar{display:none}.roller-item{height:60px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#94a3b8;font-weight:700;scroll-snap-align:center;scroll-snap-stop:always;transition:all .2s ease-out;cursor:pointer;opacity:.4;transform:scale(.9)}.roller-item.active{opacity:1;transform:scale(1.35);color:transparent;background:linear-gradient(135deg,#2563eb,#db2777);-webkit-background-clip:text;font-weight:900;text-shadow:0 5px 15px rgba(37,99,235,.2)}.roller-spacer{display:none}.roller-footer{padding:25px;background:#fffc;display:flex;gap:15px;border-top:1px solid rgba(0,0,0,.05)}.btn-wild-cancel{flex:1;padding:15px;border-radius:15px;border:none;background:#f1f5f9;color:#64748b;font-weight:700;cursor:pointer;transition:.3s}.btn-wild-confirm{flex:2;padding:15px;border-radius:15px;border:none;background:linear-gradient(135deg,#3b82f6,#8b5cf6,#ec4899);color:#fff;font-weight:900;font-size:1.1rem;box-shadow:0 10px 25px -5px #6366f166;cursor:pointer;transition:.3s;letter-spacing:2px}.btn-wild-confirm:hover{transform:translateY(-3px);box-shadow:0 15px 35px -5px #6366f180}.holo-planet-container{position:relative;width:200px;height:200px;margin:0 auto 30px;display:flex;justify-content:center;align-items:center}.holo-planet{width:100px;height:100px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#60a5fa,#1e3a8a);box-shadow:0 0 30px #3b82f699 inset,0 0 20px #3b82f666;position:relative;z-index:10;animation:planetFloat 4s ease-in-out infinite}.holo-ring{position:absolute;width:160px;height:160px;border-radius:50%;border:2px solid rgba(255,255,255,.1);border-top-color:#0ff;border-bottom-color:#0ff;transform:rotateX(70deg) rotateY(-10deg);animation:ringSpin 6s linear infinite;box-shadow:0 0 15px #00ffff4d}.holo-ring:after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;border-radius:50%;border:4px dashed rgba(255,255,255,.2);transform:scale(.8)}.stream-light{position:absolute;width:100%;height:100%;border-radius:50%;background:conic-gradient(from 0deg,transparent 0%,rgba(59,130,246,.3) 50%,transparent 100%);animation:radarSpin 4s linear infinite;opacity:.3;pointer-events:none}@keyframes planetFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}@keyframes ringSpin{0%{transform:rotateX(70deg) rotateY(-10deg) rotate(0)}to{transform:rotateX(70deg) rotateY(-10deg) rotate(360deg)}}@keyframes radarSpin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.author-final{font-family:Ma Shan Zheng,cursive;font-size:2.2rem;color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.8);margin-top:15px;letter-spacing:2px;font-weight:400}.wild-wrapper{display:flex;flex-direction:column;align-items:center;justify-content:center;transform:skew(-5deg)}.wild-main-title{font-family:Russo One,sans-serif;font-size:4rem;color:#fff;font-weight:900;font-style:italic;letter-spacing:-2px;text-shadow:0 0 30px rgba(255,255,255,.4);line-height:1;margin:0;display:flex;align-items:center;gap:15px}.wild-tag-box{font-size:1.5rem;background:#fff;color:#000;padding:5px 12px;border-radius:0;transform:skew(-10deg);box-shadow:5px 5px #ffffff4d;vertical-align:middle;margin-left:10px}.wild-author-bar{font-family:Russo One,sans-serif;font-size:1.2rem;color:#ffffffe6;margin-top:25px;letter-spacing:12px;text-transform:uppercase;border-top:3px solid #fff;padding-top:15px;text-shadow:0 0 10px rgba(255,255,255,.5)}.wild-nav-btn{font-family:Russo One,sans-serif;font-size:1.2rem;font-style:italic;padding:12px 40px;border:none;cursor:pointer;transform:skew(-10deg);transition:all .1s cubic-bezier(.4,0,.2,1);letter-spacing:1px;display:flex;align-items:center;justify-content:center;gap:8px}.wild-btn-prev{background:#fff;color:#000;border:3px solid #000;box-shadow:6px 6px #000}.wild-btn-prev:hover{transform:skew(-10deg) translate(-2px,-2px);box-shadow:9px 9px #000}.wild-btn-prev:active{transform:skew(-10deg) translate(3px,3px);box-shadow:2px 2px #000}.wild-btn-next{background:linear-gradient(90deg,#2563eb,#db2777);color:#fff;border:3px solid #fff;box-shadow:6px 6px #0003;text-shadow:0 2px 0 rgba(0,0,0,.2)}.wild-btn-next:hover{transform:skew(-10deg) translate(-2px,-2px);box-shadow:0 0 30px #db277799,9px 9px #0003}.wild-btn-next:active{transform:skew(-10deg) translate(3px,3px);box-shadow:2px 2px #0003}.noble-teacher-name{font-family:Ma Shan Zheng,cursive;font-size:3.8rem;font-weight:400;background:linear-gradient(180deg,#fff,gold 40%,#f59e0b);-webkit-background-clip:text;color:transparent;text-shadow:0 0 20px rgba(251,191,36,.4);margin:0 15px;display:inline-block;transform:scale(1.1)}#class-welcome-box{display:flex;flex-direction:column;align-items:center;gap:10px}.wild-header-wrapper{display:flex;flex-direction:column;align-items:center;transform:skew(-5deg)}.wild-header-title{font-family:Russo One,sans-serif;font-size:2.2rem;color:#fff;font-weight:900;font-style:italic;text-shadow:0 0 15px rgba(255,255,255,.6);line-height:1;display:flex;align-items:center;gap:10px}.wild-header-tag{font-size:1rem;background:#fff;color:#000;padding:2px 8px;transform:skew(-10deg);box-shadow:3px 3px #ffffff4d}.wild-header-author{font-family:Inter,sans-serif;font-size:.9rem;font-weight:800;color:#ffffffe6;margin-top:5px;letter-spacing:8px;text-shadow:0 0 5px rgba(255,255,255,.4)}#roster-panel{background:#f0f9ff!important;border-left:2px solid #bae6fd!important}.group-lane{background:#e0f2fe!important;border:2px solid #bae6fd!important;box-shadow:6px 6px #bae6fd99!important;border-radius:12px}.group-header{background:#eff6ff!important;border-bottom:2px solid #bfdbfe!important;color:#0369a1!important;font-family:Russo One,sans-serif;font-size:1rem;letter-spacing:1px}.all-students-area{background:#e0f2fe!important;border:2px solid #bae6fd!important}.all-students-area div:first-child{color:#0369a1!important;font-weight:700}.name-tag{color:#334155;text-shadow:none;font-weight:800}.card-stats{color:#64748b;font-weight:700}.header-hud{background:#fff!important;border-bottom:2px solid #e2e8f0!important}.wild-header-title{color:#0f172a!important;text-shadow:3px 3px 0px rgba(0,0,0,.1)!important}.wild-header-tag{background:#0f172a!important;color:#fff!important}.wild-header-author{color:#94a3b8!important;text-shadow:none!important}.card{background:#fff!important;border:2px solid #bae6fd!important;box-shadow:0 4px 10px #0369a11a!important}.name-tag{color:#0369a1!important;font-weight:900!important;font-size:1.25rem!important;text-shadow:none!important;letter-spacing:1px;margin-bottom:2px}.card-stats{color:#94a3b8!important;font-size:.85rem!important;font-weight:700}.card-sign-small{color:#0ea5e9!important;text-shadow:none!important;font-weight:400!important}.single-mode-card .large-card-name{font-family:Zcool KuaiLe,sans-serif!important;font-size:2.5rem!important;font-weight:900!important;color:#fff!important;text-shadow:0 0 15px rgba(255,255,255,.8)!important;letter-spacing:2px!important;margin-bottom:10px!important}.single-mode-card .card-sign-small{font-family:Orbitron,sans-serif!important;font-size:1.5rem!important;font-weight:900!important;color:var(--neon-color)!important;text-shadow:0 0 15px rgba(0,255,255,.6),0 0 30px rgba(0,255,255,.8)!important;letter-spacing:1px!important;margin-top:5px!important}.card[class*=rank-],.pk-card-large[class*=rank-]{background-size:200% 200%!important;transition:all .3s ease}.card.rank-rookie,.pk-card-large.rank-rookie{background:linear-gradient(135deg,#44403c,#292524)!important;border-color:#78716c!important}.card.rank-rookie .name-tag{color:#a8a29e!important}.card.rank-iron,.pk-card-large.rank-iron{background:linear-gradient(135deg,#451a03,#2e1065)!important;border-color:#57534e!important}.card.rank-iron .name-tag{color:#d6d3d1!important}.card.rank-bronze,.pk-card-large.rank-bronze{background:linear-gradient(45deg,#0f766e,#134e4a)!important;animation:bg-flow 8s infinite!important;border-color:#2dd4bf!important}.card.rank-bronze .name-tag{color:#5eead4!important}.card.rank-silver,.pk-card-large.rank-silver{background:linear-gradient(180deg,#0369a1,#0ea5e9)!important;animation:magma-rise 5s infinite!important;border-color:#7dd3fc!important}.card.rank-silver .name-tag{color:#bae6fd!important}.card.rank-gold,.pk-card-large.rank-gold{background:linear-gradient(135deg,#7f1d1d,#d97706)!important;animation:bg-pulse 4s infinite alternate!important;border-color:#f59e0b!important}.card.rank-gold .name-tag{color:#fbbf24!important;text-shadow:0 0 10px #b45309!important}.card.rank-platinum,.pk-card-large.rank-platinum{background:linear-gradient(120deg,#1e1b4b,#4c1d95)!important;border-color:#d8b4fe!important}.card.rank-platinum .name-tag{color:#e9d5ff!important;text-shadow:0 0 10px #7e22ce!important}.card.rank-diamond,.pk-card-large.rank-diamond{background:linear-gradient(135deg,#ecfeff,#06b6d4)!important;animation:bg-flow 10s infinite!important;border-color:#fff!important}.card.rank-diamond .name-tag{color:#0891b2!important;font-weight:900!important;text-shadow:none!important}.card.rank-star,.pk-card-large.rank-star{background:linear-gradient(90deg,#34d399,#3b82f6,#d946ef)!important;border-color:#a78bfa!important}.card.rank-star .name-tag{color:#fff!important}.card.rank-king,.pk-card-large.rank-king{background:radial-gradient(circle,#172554,#000)!important;border-color:#60a5fa!important}.card.rank-king .name-tag{background:linear-gradient(to right,#93c5fd,#fff);-webkit-background-clip:text;color:transparent!important}.card.rank-glory,.pk-card-large.rank-glory{background:linear-gradient(135deg,#334155,#cbd5e1)!important;border-color:#f8fafc!important}.card.rank-glory .name-tag{color:#fff!important;text-shadow:0 0 20px #fff!important}.card.rank-challenger,.pk-card-large.rank-challenger{background:radial-gradient(circle at 50% 30%,#fef3c7,#f59e0b,#451a03)!important;animation:sun-flare 4s infinite alternate!important;border:3px solid #fff!important}.card.rank-challenger .name-tag{color:#78350f!important;text-shadow:0 0 5px #fff!important}.rank-pendant{position:absolute;top:-45px;right:-45px;width:70px;height:70px;display:flex;align-items:center;justify-content:center;z-index:25;transform:skew(-10deg) rotate(15deg);transform-origin:bottom left;filter:drop-shadow(4px 4px 0px rgba(0,0,0,.5));font-family:"Font Awesome 6 Free"!important;font-weight:900!important;font-style:normal!important;font-variant:normal!important;text-rendering:auto;line-height:1;color:transparent!important}.rank-pendant:before{font-size:3.8rem;display:block;background-clip:text!important;-webkit-background-clip:text!important;-webkit-text-fill-color:transparent!important;color:transparent!important}.rank-rookie .rank-pendant:before{content:"";background:linear-gradient(135deg,#86efac,#22c55e);filter:drop-shadow(0 0 8px #4ade80);font-size:3.5rem}.rank-iron .rank-pendant:before{content:"";background:linear-gradient(135deg,#e2e8f0,#64748b);filter:drop-shadow(0 0 8px #94a3b8);font-size:3.6rem}.rank-bronze .rank-pendant:before{content:"";background:linear-gradient(#5eead4,#0f766e)}.rank-silver .rank-pendant:before{content:"";background:linear-gradient(#bae6fd,#0284c7)}.rank-gold .rank-pendant:before{content:"";background:linear-gradient(#fde047,#dc2626);font-size:4.2rem;filter:drop-shadow(0 0 10px #f59e0b)}.rank-platinum .rank-pendant:before{content:"";background:linear-gradient(#fff,#a855f7);font-size:4.2rem;filter:drop-shadow(0 0 10px #d8b4fe)}.rank-diamond .rank-pendant:before{content:"";background:linear-gradient(#fff,#06b6d4);font-size:4.2rem}.rank-star .rank-pendant:before{content:"";background:linear-gradient(90deg,#34d399,#d946ef);font-size:4.5rem}.rank-king .rank-pendant:before{content:"";background:linear-gradient(#fff,#facc15);font-size:4.8rem;filter:drop-shadow(0 0 15px #facc15)}.rank-glory .rank-pendant:before{content:"";background:linear-gradient(#f8fafc,#94a3b8);font-size:4.8rem;filter:drop-shadow(0 0 20px #fff)}.rank-challenger .rank-pendant:before{content:"";background:linear-gradient(#fff,#f59e0b,#ef4444);font-size:5.2rem;filter:drop-shadow(0 0 30px #f59e0b);animation:spin-slow 10s linear infinite}.effect-layer:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:5;background-repeat:repeat}.rank-rookie .effect-layer:before{background-image:radial-gradient(#78716c 1px,transparent 1px);background-size:40px 40px;opacity:.5}.rank-bronze .effect-layer:before{background-image:linear-gradient(90deg,transparent,rgba(255,255,255,.1) 50%,transparent);background-size:50% 100%;animation:bg-flow 3s linear infinite}.rank-gold .effect-layer:before{background-image:radial-gradient(#fbbf24 2px,transparent 2px);background-size:20px 30px;animation:particles-up 2s linear infinite}.rank-platinum .effect-layer:before{background-image:linear-gradient(45deg,transparent 45%,rgba(255,255,255,.8) 50%,transparent 55%);background-size:300% 300%;animation:electric-shoot 3s infinite}.rank-diamond .effect-layer:before{background-image:radial-gradient(#fff 2px,transparent 2px);background-size:25px 25px;animation:particles-down 5s linear infinite}.rank-star .effect-layer:before{background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);background-size:15px 15px;animation:bg-pulse 2s infinite}.rank-king .effect-layer:before{background-image:radial-gradient(#fff 1.5px,transparent 1.5px);background-size:50px 50px;animation:twinkle 3s infinite alternate}.rank-challenger .effect-layer:before{background:repeating-conic-gradient(from 0deg,rgba(255,255,255,.1) 0deg,transparent 10deg,rgba(255,255,255,.1) 20deg);animation:ring-spin 20s linear infinite}.avatar-wrapper:after{content:"";position:absolute;top:-6px;left:-6px;right:-6px;bottom:-6px;border-radius:50%;z-index:10;pointer-events:none;animation:ring-spin 10s linear infinite}.rank-rookie .avatar-wrapper:after{border:1px dashed #57534e}.rank-iron .avatar-wrapper:after{border:2px solid #44403c}.rank-bronze .avatar-wrapper:after{border:2px dotted #2dd4bf;animation-duration:20s}.rank-silver .avatar-wrapper:after{border-top:2px solid #3b82f6;border-bottom:2px solid #3b82f6;animation:ring-spin 3s linear infinite}.rank-gold .avatar-wrapper:after{border:3px dashed #f59e0b;box-shadow:0 0 10px #b45309;animation-duration:8s}.rank-platinum .avatar-wrapper:after{border:2px solid transparent;border-left-color:#d8b4fe;border-right-color:#fff;box-shadow:0 0 15px #a855f7;animation-duration:1s}.rank-diamond .avatar-wrapper:after{border:4px double #cffafe;box-shadow:0 0 15px #06b6d4;animation:ring-spin 10s linear infinite reverse}.rank-star .avatar-wrapper:after{border:2px solid transparent;border-top-color:#34d399;border-bottom-color:#d946ef;box-shadow:0 0 20px #d946ef;animation-duration:4s}.rank-king .avatar-wrapper:after{border:1px solid rgba(255,255,255,.3);box-shadow:0 0 30px #fff inset;animation:bg-pulse 2s infinite}.rank-glory .avatar-wrapper:after{border:2px solid #fff;box-shadow:0 0 30px #fff}.rank-challenger .avatar-wrapper:after{border:5px double #f59e0b;box-shadow:0 0 50px #ef4444,0 0 20px #f59e0b inset;animation:ring-pulse-spin 3s infinite}.card:is(.rank-gold,.rank-platinum,.rank-diamond,.rank-star,.rank-king,.rank-glory,.rank-challenger) .effect-layer:after,.pk-card-large:is(.rank-gold,.rank-platinum,.rank-diamond,.rank-star,.rank-king,.rank-glory,.rank-challenger) .effect-layer:after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(120deg,#fff0 30%,#fff6,#fff0 70%);transform:skew(-25deg);pointer-events:none;z-index:15;mix-blend-mode:overlay;animation:mirror-sweep 4s cubic-bezier(.4,0,.2,1) infinite}@keyframes ring-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes ring-pulse-spin{0%{transform:rotate(0) scale(1)}50%{transform:rotate(180deg) scale(1.1)}to{transform:rotate(360deg) scale(1)}}@keyframes bg-flow{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@keyframes magma-rise{0%{background-position:0% 100%}to{background-position:0% 0%}}@keyframes particles-up{0%{background-position:0 0}to{background-position:0 -50px}}@keyframes particles-down{0%{background-position:0 0}to{background-position:0 50px}}@keyframes electric-shoot{0%{background-position:0 0;opacity:0}5%{opacity:1}10%{background-position:100% 100%;opacity:0}to{opacity:0}}@keyframes twinkle{0%{opacity:.3;transform:scale(.8)}to{opacity:1;transform:scale(1.2)}}@keyframes mirror-sweep{0%{transform:translate(-200%) skew(-25deg);opacity:0}10%{opacity:1}40%{transform:translate(200%) skew(-25deg);opacity:0}to{transform:translate(200%) skew(-25deg);opacity:0}}@keyframes bg-pulse{0%{filter:brightness(1)}to{filter:brightness(1.2)}}@keyframes spin-slow{to{transform:rotate(360deg)}}@keyframes sun-flare{0%{box-shadow:0 0 30px #f59e0b}to{box-shadow:0 0 80px #f59e0b,0 0 30px #fff inset}}@keyframes auto-rotate-3d{0%{transform:perspective(1200px) rotateY(-12deg) rotateX(6deg)}50%{transform:perspective(1200px) rotateY(12deg) rotateX(-6deg)}to{transform:perspective(1200px) rotateY(-12deg) rotateX(6deg)}}.auto-rotating{animation:auto-rotate-3d 8s ease-in-out infinite!important}#winner-overlay{background:#f0f9fffa!important;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.pk-left-panel{border-right:2px dashed #cbd5e1!important}.question-stage{background:#fff!important;border:2px solid #bae6fd!important;box-shadow:0 10px 40px #bae6fd80!important}#question-content,.q-text-content{color:#0f172a!important;text-shadow:none!important;font-weight:600}#answer-content{background:#fffffffa!important;border:2px solid #4ade80!important;color:#15803d!important;box-shadow:0 5px 20px #4ade804d!important;font-weight:700}.q-close-btn{background:#fff!important;border:2px solid #e2e8f0!important;color:#64748b!important;box-shadow:0 4px 10px #0000000d!important;transition:.3s}.q-close-btn:hover{background:#fee2e2!important;color:#ef4444!important;border-color:#ef4444!important;transform:rotate(90deg)}.q-timer{background:#fff!important;border-color:#3b82f6!important;color:#3b82f6!important;box-shadow:0 4px 15px #3b82f640!important}.q-timer.urgent{border-color:#ef4444!important;color:#ef4444!important;box-shadow:0 0 20px #ef444466!important}#timer-select{background:#fff!important;color:#334155!important;border:1px solid #cbd5e1!important}.zoom-btn{background:#fff!important;border:1px solid #cbd5e1!important;color:#64748b!important}.zoom-btn:hover{background:#eff6ff!important;color:#3b82f6!important;border-color:#3b82f6!important}.show-answer-btn{background:#f8fafc!important;border:1px solid #94a3b8!important;color:#475569!important;font-weight:700}.show-answer-btn:hover{background:#3b82f6!important;color:#fff!important;border-color:#3b82f6!important}#profile-preview-card .content-layer{justify-content:center!important;gap:10px;padding-bottom:40px}#profile-preview-card .avatar-wrapper{width:140px!important;height:140px!important;margin-bottom:10px;border-width:6px!important}#profile-preview-card .avatar-img{border-width:4px!important}#profile-preview-card .rank-pendant{width:80px!important;height:80px!important;top:-40px!important;right:-40px!important}#profile-preview-card .rank-pendant:before{font-size:5rem!important}#profile-preview-card .name-tag{font-size:2.8rem!important;line-height:1.2;margin-top:10px;text-shadow:0 4px 10px rgba(0,0,0,.5)}#profile-preview-card .card-sign-small{font-size:1.5rem!important;margin-top:5px;letter-spacing:2px}#profile-preview-card .card-stats{font-size:1.3rem!important;background:#0006;padding:8px 25px;border-radius:50px;margin-top:10px;border:1px solid rgba(255,255,255,.1)}#profile-preview-card .rank-title-text{font-size:2.2rem!important;bottom:-20px!important;letter-spacing:4px;text-shadow:0 2px 10px rgba(0,0,0,.8)}#practice-layer{background-color:#262626!important}#viewer-practice.resource-viewer{background:transparent!important;color:#fff!important;display:flex;justify-content:center;align-items:center}#viewer-practice .mammoth-docx-fix,#viewer-practice div[style*="background:white"]{background:#fff!important;color:#000!important}.subject-sidebar.show-tools{display:flex!important}#practice-layer{background-color:#1a1a1a!important;z-index:11!important}#viewer-practice,#viewer-practice.resource-viewer{background:transparent!important;color:#fff!important}#drawing-canvas{z-index:50!important;pointer-events:none}#drawing-canvas.active{pointer-events:auto!important;cursor:crosshair}#lecture-panel{position:relative!important}.subject-dock{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:#1e1e1ef2;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(255,255,255,.15);border-radius:50px;padding:15px 10px;display:flex;flex-direction:column;gap:15px;z-index:1000;box-shadow:0 10px 40px #0009;transition:all .4s cubic-bezier(.175,.885,.32,1.275);width:60px;overflow:hidden}.subject-dock.expanded{width:240px;border-radius:20px;padding:20px;background:#141414fa}.dock-item{width:40px;height:40px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:all .3s;opacity:.7;position:relative;flex-shrink:0;margin:0 auto}.dock-item i{font-size:1.4rem;margin-bottom:2px}.dock-item span{font-size:.7rem;font-weight:700;white-space:nowrap;opacity:0;height:0;transition:.2s}.dock-item:hover{opacity:1;transform:scale(1.15);background:#ffffff1a}.dock-item:hover span{opacity:1;height:auto}.dock-item.math{color:#0ff;text-shadow:0 0 10px rgba(0,255,255,.3)}.dock-item.chinese{color:#f59e0b;text-shadow:0 0 10px rgba(245,158,11,.3)}.dock-item.english{color:#d946ef;text-shadow:0 0 10px rgba(217,70,239,.3)}.subject-dock.mode-math .dock-item:not(.math),.subject-dock.mode-chinese .dock-item:not(.chinese),.subject-dock.mode-english .dock-item:not(.english){display:none}.subject-dock.expanded .dock-item.active{opacity:1;transform:scale(1);width:100%;height:auto;flex-direction:row;justify-content:flex-start;gap:10px;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:10px;border-radius:0;margin-bottom:10px;background:none}.subject-dock.expanded .dock-item.active i{font-size:1.8rem}.subject-dock.expanded .dock-item.active span{opacity:1;height:auto;font-size:1.2rem}.dock-tools-container{display:none;flex-direction:column;gap:15px;width:100%;opacity:0;transition:opacity .3s .1s}.subject-dock.expanded .dock-tools-container{display:flex;opacity:1}.dock-group-title{font-size:.8rem;color:#666;margin-bottom:5px;font-weight:700;text-transform:uppercase;letter-spacing:1px}.dock-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.dock-tool-btn{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:#ccc;padding:10px 5px;border-radius:8px;font-size:.85rem;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:5px;transition:.2s}.dock-tool-btn i{font-size:1.2rem}.dock-tool-btn:hover{background:#ffffff26;color:#fff;transform:translateY(-2px)}.dock-tool-btn:active{transform:scale(.95)}.dock-tool-btn.active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 0 15px #3b82f666}.subject-tools-container{width:0;height:auto;background:#1e1e1efa;overflow:hidden;transition:width .2s ease-out;border-radius:10px 0 0 10px;border:1px solid #444;border-right:none}.subject-sidebar.expanded .subject-tools-container{width:190px!important}#grid-layer{position:absolute;top:0;left:0;width:100%;height:100%;z-index:40;pointer-events:none;display:none;background-color:transparent;background-size:100px 100px;background-position:center center;background-image:linear-gradient(to bottom,transparent 49px,rgba(255,255,255,.3) 49px,rgba(255,255,255,.3) 51px,transparent 51px),linear-gradient(to right,transparent 49px,rgba(255,255,255,.3) 49px,rgba(255,255,255,.3) 51px,transparent 51px)}#grid-layer.active{display:block;animation:grid-fade-in .5s ease-out}@keyframes grid-fade-in{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}.axis-container{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden}.axis-x{position:absolute;top:50%;left:0;width:100%;height:4px;background:gold;box-shadow:0 0 15px #ffd70099;border-radius:2px;transform:translateY(-50%)}.axis-x:after{content:"x";position:absolute;right:15px;top:-45px;font-size:2.2rem;font-family:Times New Roman,serif;font-style:italic;font-weight:900;color:gold;text-shadow:0 2px 5px black}.axis-x:before{content:"";position:absolute;right:-2px;top:-10px;border-top:12px solid transparent;border-bottom:12px solid transparent;border-left:24px solid #ffd700}.axis-y{position:absolute;left:50%;top:0;height:100%;width:4px;background:gold;box-shadow:0 0 15px #ffd70099;border-radius:2px;transform:translate(-50%)}.axis-y:after{content:"y";position:absolute;top:10px;left:25px;font-size:2.2rem;font-family:Times New Roman,serif;font-style:italic;font-weight:900;color:gold;text-shadow:0 2px 5px black}.axis-y:before{content:"";position:absolute;top:-2px;left:-10px;border-left:12px solid transparent;border-right:12px solid transparent;border-bottom:24px solid #ffd700}.origin-label{position:absolute;top:50%;left:50%;transform:translate(-35px,10px);font-family:Times New Roman,serif;font-style:italic;font-weight:900;font-size:1.8rem;color:gold;text-shadow:0 2px 5px black}.web-input-group{display:flex;gap:10px;margin-bottom:20px}.web-input{flex:1;background:#333;border:1px solid #555;color:#fff;padding:12px;border-radius:8px;outline:none;font-size:1rem;transition:.3s}.web-input:focus{border-color:var(--primary);background:#222}.web-add-btn{background:var(--primary);color:#fff;border:none;padding:0 25px;border-radius:8px;cursor:pointer;font-weight:700;transition:.2s}.web-add-btn:hover{background:#2563eb;transform:scale(1.05)}.web-list-container{max-height:450px;overflow-y:auto;display:flex;flex-direction:column;gap:10px;padding-right:5px}.web-item{display:flex;justify-content:space-between;align-items:center;background:#222;padding:15px;border-radius:10px;border:1px solid #333;transition:all .2s;position:relative;overflow:hidden}.web-item:hover{border-color:#0ea5e9;box-shadow:0 0 15px #0ea5e933;transform:translate(5px);background:#2a2a2a}.web-info{display:flex;align-items:center;gap:15px;flex:1;cursor:pointer;text-decoration:none}.web-icon{width:45px;height:45px;background:#0ea5e926;color:#0ea5e9;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0;border:1px solid rgba(14,165,233,.3)}.web-text{display:flex;flex-direction:column;gap:3px;overflow:hidden}.web-title{font-weight:700;font-size:1.1rem;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.web-url{font-size:.85rem;color:#888;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.web-del-btn{background:transparent;border:none;color:#555;cursor:pointer;padding:10px;transition:.2s;font-size:1.1rem;margin-left:10px}.web-del-btn:hover{color:#ef4444;transform:scale(1.2);text-shadow:0 0 10px rgba(239,68,68,.5)}