@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(./KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(./KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(./KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(./KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(./KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(./KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(./KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(./KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(./KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(./KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(./KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(./KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(./KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(./KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(./KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(./KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(./KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(./KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(./KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(./KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(./KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(./KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(./KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(./KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(./KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(./KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(./KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(./KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(./KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(./KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(./KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(./KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(./KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(./KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(./KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(./KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(./KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(./KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(./KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(./KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(./KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(./KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(./KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(./KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(./KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(./KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(./KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(./KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(./KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(./KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(./KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(./KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(./KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(./KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(./KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(./KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(./KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(./KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(./KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.18.5"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .katex-vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .katex-thinbox{display:inline-flex;flex-direction:row;max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.katex-root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .katex-stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}:root{--paper: #ffffff;--sky: #FEF0D5;--sky-tint: #F7E5C8;--sky-tint-2: #EBCEAA;--line: #E2C9A3;--line-strong: #CEB085;--ink: #0b1f3a;--ink-soft: #1e3a63;--slate: #52657f;--slate-dim: #8496ae;--navy: #0e3d80;--blue: #2f6fe4;--blue-hover: #1f5bcb;--blue-soft: #eaf2fe;--danger: #d65b76;--success: #1e9e76;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--font-display: "Lexend", "Inter", sans-serif;--font-ui: "Inter", -apple-system, "Segoe UI", sans-serif;--font-paper: "Times New Roman", Times, serif;--sig-none: #8B9BB4;--sig-options: #2563EB;--sig-questions:#D94A6E;--sig-all: #109B6E;--sig-correct: #BE2A47;--g0-bg:#EEF2F6;--g0-ink:#4E5D73;--g0-border:#D8E0EB;--g0-dot:#8B9BB4;--g1-bg:#FDF0F3;--g1-ink:#B32646;--g1-border:#F7CBD5;--g1-dot:#D94A6E;--g2-bg:#EBF3FE;--g2-ink:#1A4FC4;--g2-border:#CCE0FC;--g2-dot:#2563EB;--g3-bg:#EAF7F1;--g3-ink:#107954;--g3-border:#C5EBD9;--g3-dot:#109B6E}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#94a3b847;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#94a3b873}*{scrollbar-width:thin;scrollbar-color:rgba(148,163,184,.28) transparent}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--sky);color:var(--ink);line-height:1.5;font-family:var(--font-ui);-webkit-font-smoothing:antialiased}button,input,select{font-family:inherit}button{cursor:pointer}:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.screen{display:none}.screen.is-active{display:block;animation:screenEnter .4s cubic-bezier(.16,1,.3,1)}@keyframes screenEnter{0%{transform:translateY(10px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes fadeIn{0%{transform:translateY(6px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes fadeInUpSoft{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleInSoft{0%{opacity:0;transform:scale(.96) translateY(12px)}to{opacity:1;transform:scale(1) translateY(0)}}@keyframes floatSoft{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}#screen-upload .hero-text h1{animation:fadeInUpSoft .6s cubic-bezier(.16,1,.3,1) .05s both}#screen-upload .hero-text p.lede{animation:fadeInUpSoft .6s cubic-bezier(.16,1,.3,1) .12s both}#screen-upload .dropzone{animation:fadeInUpSoft .6s cubic-bezier(.16,1,.3,1) .2s both}#screen-upload .feature-list{animation:fadeInUpSoft .6s cubic-bezier(.16,1,.3,1) .28s both}#screen-upload .hero-art{animation:scaleInSoft .75s cubic-bezier(.16,1,.3,1) .15s both}#screen-upload .hero-art svg{animation:floatSoft 6s ease-in-out infinite}.topbar{position:sticky;top:0;z-index:100;border-bottom:1px solid var(--line);background:#fff;padding:14px 32px;padding-top:max(14px,env(safe-area-inset-top,14px))}.topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;margin:0 auto;max-width:1200px}.brand{display:flex;align-items:center;gap:10px;cursor:pointer;color:var(--navy);font-weight:700;font-size:1.15rem;font-family:var(--font-display);text-decoration:none}.brand-mark{display:flex;justify-content:center;align-items:center;border-radius:9px;background:var(--blue);width:32px;height:32px;color:#fff;font-weight:700;font-size:.85rem}.brand-logo-img{height:36px;width:auto;object-fit:contain;display:block}.topnav-links{display:flex;align-items:center;gap:6px}.topnav-links a{transition:background .15s,color .15s;border-radius:20px;padding:8px 18px;color:var(--slate);font-weight:500;font-size:.92rem;text-decoration:none}.topnav-links a:hover{background:var(--sky-tint);color:var(--navy)}.topnav-links a.active{background:var(--blue-soft);color:var(--blue);font-weight:700}.mobile-menu{display:none;border:1px solid var(--line);border-radius:8px;background:var(--sky-tint);padding:8px 14px;color:var(--blue);font-weight:600;font-size:.9rem}.hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:48px;margin:0 auto;padding:40px 32px;max-width:1240px;min-height:min(calc(100vh - 75px),720px)}.hero-badge-pill{display:inline-flex;align-items:center;font-size:.82rem;font-weight:700;color:var(--blue);background:var(--blue-soft);border:1px solid var(--line);padding:5px 14px;border-radius:20px;margin-bottom:12px;width:fit-content}.hero-text h1{max-width:16ch;color:var(--ink);font-weight:700;font-size:clamp(2.1rem,3.4vw,2.9rem);line-height:1.35;font-family:var(--font-display);letter-spacing:-.03em}.hero-text h1 em{color:var(--blue);font-style:normal}.hero-text p.lede{margin-top:16px;max-width:48ch;color:var(--slate);font-size:1.02rem;line-height:1.65}.dropzone{display:flex;position:relative;align-items:center;gap:20px;transition:border-color .2s,background .2s,transform .2s;margin-top:28px;border:2px dashed var(--line-strong);border-radius:var(--radius-lg);background:var(--paper);padding:24px 22px}.dropzone:hover,.dropzone.dragover{transform:translateY(-2px);border-color:var(--blue);background:var(--sky-tint)}.dropzone-icon{display:flex;flex:none;justify-content:center;align-items:center;border-radius:14px;background:var(--sky-tint);width:50px;height:50px;color:var(--blue)}.dropzone-body{flex:1;min-width:0}.dropzone-body p.title{color:var(--ink);font-weight:600;font-size:.96rem}.dropzone-body p.sub{margin-top:2px;color:var(--slate-dim);font-size:.84rem}.btn-primary{display:inline-block;flex:none;transition:background .15s,transform .15s;cursor:pointer;border:none;border-radius:30px;background:var(--blue);padding:12px 24px;color:#fff;font-weight:700;font-size:.92rem;text-align:center;text-decoration:none}.btn-primary:hover{transform:translateY(-1px);background:var(--blue-hover)}input[type=file]{display:none}.sample-card{margin-top:18px;border:1.5px solid var(--line-strong);border-radius:var(--radius-lg);background:var(--paper);padding:18px 22px;display:flex;flex-direction:column;gap:14px}.sample-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.sample-title-wrap{display:flex;align-items:center;gap:12px}.sample-badge-icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:var(--sky-tint);color:var(--blue);flex-shrink:0}.sample-card-head .title{font-weight:700;font-size:.96rem;color:var(--ink);font-family:var(--font-display)}.sample-card-head .sub{font-size:.82rem;color:var(--slate);margin-top:1px}.sample-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;background:var(--sky-tint);color:var(--navy);font-size:.76rem;font-weight:700;letter-spacing:.02em;white-space:nowrap}.sample-controls{display:flex;gap:12px;align-items:center}.sample-select-wrapper{position:relative;flex:1;min-width:0;width:100%}.sample-select{width:100%;appearance:none;-webkit-appearance:none;border:1.5px solid var(--line-strong);border-radius:12px;background:#fff;padding:10px 42px 10px 16px;font-size:16px;font-weight:600;color:var(--ink);outline:none;cursor:pointer;box-shadow:0 1px 4px #0b1f3a0a;transition:border-color .2s,box-shadow .2s}.sample-select:hover{border-color:var(--blue)}.sample-select:focus{border-color:var(--blue);box-shadow:0 0 0 3px #2563eb26}.sample-select optgroup{font-weight:700;color:var(--slate);font-size:.78rem;letter-spacing:.04em;background:#f1f5f9;padding:6px 10px}.sample-select option{font-weight:500;color:var(--ink);font-size:.92rem;padding:8px 12px;background:#fff}.sample-select-wrapper:after{content:"";position:absolute;right:15px;top:50%;transform:translateY(-50%);width:12px;height:7px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 7' fill='none'%3E%3Cpath d='M1 1.5L6 5.5L11 1.5' stroke='%23475569' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;pointer-events:none}.btn-download-sample{display:inline-flex;align-items:center;justify-content:center;gap:8px;flex:none;cursor:pointer;border:none;border-radius:12px;background:var(--blue);padding:10px 22px;color:#fff;font-size:.92rem;font-weight:700;white-space:nowrap;box-shadow:0 2px 8px #2563eb40;transition:background .2s,transform .15s,box-shadow .2s}.btn-download-sample:hover{background:#1d4ed8;transform:translateY(-1px);box-shadow:0 4px 12px #2563eb59}.feature-list{display:flex;flex-direction:column;gap:12px;margin-top:26px}.feature-item{display:flex;align-items:flex-start;gap:12px;transition:transform .2s;border-left:2px solid var(--line-strong);padding-left:14px}.feature-item:hover{transform:translate(4px);border-left-color:var(--blue)}.feature-item .fi-icon{flex:none;margin-top:2px;color:var(--blue)}.feature-item .fi-title{color:var(--ink);font-weight:600;font-size:.91rem}.feature-item .fi-sub{margin-top:1px;color:var(--slate-dim);font-size:.82rem}.hero-art{display:flex;justify-content:center;align-items:center}.hero-art svg{width:100%;max-width:520px;height:auto}.scroll-chop-mo-wrap{position:fixed;bottom:22px;left:50%;transform:translate(-50%);z-index:99;pointer-events:auto;transition:opacity .35s cubic-bezier(.16,1,.3,1),transform .35s cubic-bezier(.16,1,.3,1),visibility .35s;visibility:visible;opacity:1}.scroll-chop-mo-wrap.is-hidden{opacity:0;visibility:hidden;pointer-events:none;transform:translate(-50%,14px)}.scroll-chop-mo-btn{display:inline-flex;align-items:center;gap:9px;padding:8px 18px 8px 20px;border-radius:999px;background:#ffffffe0;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(47,111,228,.22);color:var(--navy);font-family:inherit;font-size:.86rem;font-weight:600;letter-spacing:-.01em;text-decoration:none;cursor:pointer;box-shadow:0 4px 18px #0b1f3a14,0 1px 4px #2f6fe41f;transition:background .2s ease,border-color .2s ease,transform .2s ease;animation:chopMoBreathe 2.2s ease-in-out infinite}.scroll-chop-mo-btn:hover{animation-play-state:paused;background:#fff;color:var(--blue);border-color:var(--blue);transform:translateY(-2px);box-shadow:0 6px 22px #2f6fe433;opacity:1!important}.scroll-chop-mo-btn .chop-mo-text{color:var(--navy);transition:color .2s ease}.scroll-chop-mo-btn:hover .chop-mo-text{color:var(--blue)}.scroll-chop-mo-btn .chop-mo-arrow{display:flex;align-items:center;justify-content:center;color:var(--blue);filter:drop-shadow(0 2px 6px rgba(47,111,228,.55));transition:transform .2s ease;animation:chopMoArrowDrift 2.2s ease-in-out infinite}.scroll-chop-mo-btn:hover .chop-mo-arrow{animation-play-state:paused;transform:translateY(2px)}@keyframes chopMoBreathe{0%,to{opacity:.45;transform:translateY(0);border-color:#2f6fe42e;box-shadow:0 2px 10px #0b1f3a0d}50%{opacity:1;transform:translateY(4px);border-color:#2f6fe473;box-shadow:0 6px 20px #2f6fe42e}}@keyframes chopMoArrowDrift{0%,to{transform:translateY(0);filter:drop-shadow(0 1px 3px rgba(47,111,228,.35))}50%{transform:translateY(3px);filter:drop-shadow(0 3px 8px rgba(47,111,228,.75))}}@media (max-width: 520px){.scroll-chop-mo-wrap{bottom:16px}.scroll-chop-mo-btn{padding:7px 15px;font-size:.8rem;gap:7px}}.home-guide-section{max-width:1240px!important;margin:16px auto 100px!important;padding:56px 32px 0!important;border-top:1.5px solid var(--line);position:relative;will-change:opacity,transform}.home-guide-section.is-visible{opacity:1;transform:translateY(0)}.home-guide-section:before{content:"";position:absolute;top:-2px;left:50%;transform:translate(-50%);width:120px;height:3px;background:var(--blue);border-radius:3px}.home-guide-header{text-align:center;max-width:780px;margin:0 auto 32px}.home-guide-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:30px;background:var(--sky-tint);border:1px solid var(--line-strong);color:var(--blue);font-size:.8rem;font-weight:700;letter-spacing:.03em;text-transform:uppercase;margin-bottom:14px}.home-guide-header h2{color:var(--ink);font-weight:700;font-size:clamp(1.8rem,2.6vw,2.25rem);font-family:var(--font-display);letter-spacing:-.025em;line-height:1.3}.home-guide-desc{margin-top:10px;color:var(--slate);font-size:.98rem;line-height:1.65}.home-guide-section .sample-card{max-width:1040px;margin:0 auto 28px;border:1.5px solid var(--line-strong);border-radius:18px;background:var(--paper);padding:16px 24px;display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:24px;box-shadow:0 4px 18px #0b1f3a0a}.home-guide-section .sample-card-head{display:flex;align-items:center;gap:14px;flex:0 1 auto}.home-guide-section .sample-title-wrap{display:flex;align-items:center;gap:12px}.home-guide-section .sample-controls{display:flex;align-items:center;gap:12px;flex:1 1 540px;max-width:640px}.home-guide-section .guide-tabs-bar{display:flex;align-items:center;border:1px solid var(--navy);border-bottom:none;border-radius:16px 16px 0 0;background:var(--navy);padding:4px 8px 0;margin:0 auto;max-width:1040px;overflow-x:auto;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.3) transparent}.home-guide-section .guide-tabs-bar::-webkit-scrollbar{height:3px}.home-guide-section .guide-tabs-bar::-webkit-scrollbar-thumb{background:#ffffff40;border-radius:3px}.home-guide-section .tab-item{position:relative;transition:all .2s ease;cursor:pointer;border:none;background:transparent;padding:12px 10px 14px;color:#ffffffd1;font-weight:600;font-size:.86rem;white-space:nowrap;flex:1;text-align:center}.home-guide-section .tab-item:hover{color:#fff}.home-guide-section .tab-item.active{color:#fff;font-weight:700;background:transparent;box-shadow:none;border:none}.home-guide-section .tab-item.active:after{display:block;position:absolute;right:8px;bottom:0;left:8px;border-radius:3px 3px 0 0;background:#fff;height:3px;content:""}.home-guide-section .guide-card{max-width:1040px;margin:0 auto;border:1.5px solid var(--line-strong);border-top:none;border-radius:0 0 20px 20px;background:var(--paper);padding:40px 44px;box-shadow:0 8px 30px #0b1f3a0a;min-height:480px}@media (max-width: 860px){.home-guide-section{padding:36px 16px 0!important}.home-guide-section .sample-card{flex-direction:column;align-items:stretch;padding:16px;gap:14px}.home-guide-section .sample-controls{flex:none!important;width:100%;max-width:100%;flex-direction:column;align-items:stretch;gap:10px}.home-guide-section .sample-select-wrapper{min-width:0!important;width:100%}.home-guide-section .btn-download-sample{width:100%;justify-content:center;padding:12px 20px}.home-guide-section .guide-card{padding:24px 16px}.home-guide-section .guide-tabs-bar{padding:6px 8px 0;overflow-x:auto;-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity}.home-guide-section .tab-item{flex:0 0 auto;padding:10px 14px 12px;font-size:.85rem;scroll-snap-align:start}}.guide-container{margin:28px auto 56px;padding:0 20px;max-width:980px}.guide-page-header{margin-bottom:22px;text-align:left}.guide-page-header h2{color:var(--navy);font-weight:700;font-size:1.75rem;font-family:var(--font-display);letter-spacing:-.02em}.guide-page-header p{margin-top:5px;color:var(--slate);font-size:.94rem}.guide-tabs-bar{display:flex;align-items:center;border:1px solid var(--navy);border-bottom:none;border-radius:14px 14px 0 0;background:var(--navy);padding:4px 8px 0;overflow-x:auto;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.3) transparent}.guide-tabs-bar::-webkit-scrollbar{height:3px}.guide-tabs-bar::-webkit-scrollbar-thumb{background:#ffffff40;border-radius:3px}.tab-item{position:relative;transition:all .2s ease;cursor:pointer;border:none;background:transparent;padding:11px 10px 13px;color:#ffffffd1;font-weight:600;font-size:.86rem;white-space:nowrap;flex:1;text-align:center}.tab-item:hover{color:#fff}.tab-item.active{color:#fff;font-weight:700}.tab-item.active:after{position:absolute;right:8px;bottom:0;left:8px;border-radius:3px 3px 0 0;background:#fff;height:3px;content:""}.guide-card{border:1px solid var(--line);border-top:none;border-radius:0 0 16px 16px;background:var(--paper);padding:30px 36px;min-height:480px}.tab-pane{display:none}.tab-pane.active{display:block;animation:fadeIn .25s ease}.guide-section-block{margin-bottom:32px;border-bottom:1px dashed var(--line);padding-bottom:28px}.guide-section-block:last-child{margin-bottom:0;border-bottom:none;padding-bottom:0}.guide-heading{display:flex;align-items:center;gap:12px;margin-bottom:14px}.guide-badge{display:flex;flex-shrink:0;justify-content:center;align-items:center;border-radius:50%;background:var(--blue);width:30px;height:30px;color:#fff;font-weight:700;font-size:.92rem;font-family:var(--font-display)}.guide-title{margin:0;color:var(--navy);font-weight:700;font-size:1.2rem;font-family:var(--font-display);letter-spacing:-.01em}.guide-desc{margin-bottom:14px;color:#1e293b;font-size:.96rem;line-height:1.7}.guide-desc strong{color:var(--navy);font-weight:700}.syntax-box{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:12px 0 16px;padding:12px 16px;background:#fff;border:1px solid var(--line-strong);border-radius:8px;font-size:.92rem;line-height:1.5}.syntax-box-label{font-size:.8rem;font-weight:700;color:var(--slate);text-transform:uppercase;letter-spacing:.04em;margin-right:4px}.syntax-chip{display:inline-flex;align-items:center;padding:4px 10px;background:var(--sky);border:1px solid var(--line);border-radius:6px;color:var(--navy);font-weight:700;font-size:.88rem;white-space:nowrap}.syntax-chip.primary{background:var(--sky);border-color:var(--line);color:var(--navy)}.syntax-plus{color:var(--slate-dim);font-weight:700;font-size:.92rem}.kbd-key{display:inline-block;padding:2px 7px;font-size:.84em;font-family:inherit;font-weight:700;color:var(--navy);background:#fff;border:1px solid var(--line-strong);border-radius:5px;box-shadow:0 1px #00000014}.err-tag{display:inline-block;padding:2px 7px;border-radius:4px;background:#fee2e2;color:#991b1b;font-weight:700;font-family:Consolas,Monaco,monospace;font-size:.88em;border:1px solid #fecaca}.ok-tag{display:inline-block;padding:2px 7px;border-radius:4px;background:#ecfdf5;color:#065f46;font-weight:700;font-family:Consolas,Monaco,monospace;font-size:.88em;border:1px solid #a7f3d0}.trouble-box{margin:10px 0 4px;background:var(--sky);border:1px solid var(--line);border-radius:10px;padding:14px 18px}.trouble-grid{display:flex;flex-direction:column;gap:8px;margin:0}.trouble-item{display:flex;gap:10px;align-items:baseline;font-size:.94rem;line-height:1.6;color:#1e293b}.trouble-label{font-weight:700;color:var(--navy);min-width:85px;flex-shrink:0}.example-box{margin:14px 0;border:1px solid var(--line);border-left:3.5px solid var(--blue);border-radius:10px;background:var(--sky);padding:14px 18px}.example-box-title{display:flex;align-items:center;gap:6px;margin-bottom:10px;color:var(--blue);font-weight:700;font-size:.92rem}.example-list{margin:0;padding:0;list-style:none}.example-list li{position:relative;padding-left:18px;color:#1e293b;font-size:.92rem;line-height:1.75}.example-list li:before{position:absolute;left:4px;content:"•";color:var(--slate-dim);font-weight:700}.guide-note-box{margin:14px 0 0;border:1px solid var(--line);border-radius:8px;background:var(--sky);padding:12px 16px;color:#1e293b;font-size:.9rem;line-height:1.65}.guide-note-box strong{color:var(--navy)}code{border-radius:4px;background:var(--sky-tint);padding:2px 5px;color:var(--navy);font-weight:700;font-size:.86em;font-family:Consolas,Monaco,monospace}.tag-table-wrap{margin:12px 0;border:1px solid var(--line);border-radius:8px;overflow-x:auto}.tag-table{border-collapse:collapse;width:100%;font-size:.86rem}.tag-table th{border-bottom:1px solid var(--line);background:var(--sky-tint);padding:10px 14px;color:var(--navy);font-weight:700;text-align:left}.tag-table td{border-bottom:1px solid var(--line);padding:9px 14px;color:var(--ink-soft)}.tag-table tr:last-child td{border-bottom:none}.page-header{margin-bottom:24px}.page-header-title{color:var(--navy);font-size:clamp(1.45rem,5vw,2.1rem);font-weight:700;font-family:var(--font-display);line-height:1.25;letter-spacing:-.02em}.page-header-sub{margin-top:8px;color:var(--slate);font-size:clamp(.9rem,2.6vw,1.02rem);line-height:1.55}.compose-sample-card{margin-top:28px}.compose-container{margin:0 auto;padding:40px 32px 72px;max-width:860px}.compose-steps{display:flex;flex-direction:column;gap:12px;margin-top:32px}.compose-step{display:flex;align-items:flex-start;gap:18px;background:var(--paper);border:1.5px solid var(--line);border-radius:var(--radius-md);padding:20px 24px;transition:border-color .2s ease,box-shadow .2s ease}.compose-step:hover{border-color:var(--line-strong);box-shadow:0 4px 14px #0b1f3a0a}.cstep-num{display:flex;align-items:center;justify-content:center;min-width:36px;height:36px;border-radius:50%;background:var(--sky-tint);border:1px solid var(--line);color:var(--navy);font-weight:700;font-size:.95rem;font-family:var(--font-display);flex-shrink:0;transition:background .2s ease,border-color .2s ease,color .2s ease}.compose-step:hover .cstep-num{background:var(--blue-soft);border-color:#c7dcfa;color:var(--blue)}.cstep-body{flex:1}.cstep-title{font-weight:700;font-size:.98rem;color:var(--ink);font-family:var(--font-display);margin-bottom:4px}.cstep-desc{font-size:.9rem;color:var(--slate);line-height:1.6}.cstep-desc code{background:var(--sky);border:1px solid var(--line);border-radius:4px;padding:1px 6px;font-size:.85rem;color:var(--navy);font-family:monospace}.compose-guide-cta{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:28px;background:var(--paper);border:1.5px solid var(--line);border-radius:var(--radius-lg);padding:22px 28px;flex-wrap:wrap;box-shadow:0 2px 8px #0b1f3a08}.cta-left{display:flex;align-items:center;gap:16px;flex:1;min-width:260px}.cta-badge-icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:var(--sky-tint);border:1px solid var(--line);color:var(--navy);flex-shrink:0}.cta-text{flex:1}.cta-title{font-weight:700;font-size:1.05rem;color:var(--ink);font-family:var(--font-display);margin-bottom:3px}.cta-sub{font-size:.88rem;color:var(--slate);line-height:1.55}.features-container{margin:0 auto;padding:56px 32px 72px;max-width:1200px}.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px}.feature-card{display:flex;flex-direction:column;gap:16px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--paper);padding:32px}.fc-icon{display:flex;justify-content:center;align-items:center;width:52px;height:52px;font-size:2rem;border-radius:14px;background:var(--sky);flex-shrink:0}.fc-title{color:var(--ink);font-weight:700;font-size:1.1rem;font-family:var(--font-display)}.fc-desc{color:var(--slate);font-size:.92rem;line-height:1.65}.toast{position:fixed;right:24px;bottom:24px;transform:translateY(100px);opacity:0;z-index:999;transition:transform .25s cubic-bezier(.175,.885,.32,1.275),opacity .25s;border:1px solid var(--slate);border-radius:12px;background:var(--ink);padding:14px 20px;color:#fff;font-weight:500;font-size:.92rem}.toast.show{transform:translateY(0);opacity:1}@media (max-width: 990px){.hero{grid-template-columns:1fr;gap:40px;padding-top:36px;min-height:auto}.hero-art{order:-1;margin:0 auto;max-width:360px}.features-grid{grid-template-columns:1fr}}@media (max-width: 860px){.topbar{padding:12px 18px;padding-top:max(12px,env(safe-area-inset-top,12px));padding-left:max(16px,env(safe-area-inset-left,16px));padding-right:max(16px,env(safe-area-inset-right,16px))}.mobile-menu{display:block}.topnav-links{display:none;position:absolute;top:calc(100% + 2px);right:16px;left:16px;flex-direction:column;border:1.5px solid var(--line);border-radius:16px;background:#fff;padding:10px;box-shadow:0 12px 36px #0b1f3a29;z-index:200}.topnav-links.open{display:flex}.topnav-links a{text-align:center;padding:11px 16px;font-size:.95rem;font-weight:600}.compose-container,.guide-container,.features-container{padding:24px 16px 80px}.compose-sample-card{margin-top:18px!important}.sample-card{padding:16px 14px;gap:12px}.sample-card-head{flex-direction:column;align-items:flex-start;gap:8px}.sample-controls{flex-direction:column;align-items:stretch;gap:10px;width:100%}.sample-select-wrapper{min-width:0!important;width:100%}.btn-download-sample{width:100%;justify-content:center;padding:12px 20px}.compose-steps{margin-top:20px;gap:10px}.compose-step{padding:14px;gap:12px}.cstep-num{min-width:32px;height:32px;font-size:.88rem}.compose-guide-cta{margin-top:20px;padding:18px 16px;flex-direction:column;align-items:stretch;gap:14px}.cta-left{min-width:0;width:100%}.features-grid{grid-template-columns:1fr;gap:14px;margin-top:20px}.feature-card{padding:20px 16px}.dropzone{flex-direction:column;text-align:center;padding:28px 18px}.btn-primary{width:100%;justify-content:center}}.mixer{display:grid;grid-template-columns:430px 1fr;height:100vh;background:var(--sky)}.mx-left{background:var(--sky);border-right:1px solid var(--line);height:100vh;overflow-y:auto;padding:0 0 32px}.mx-left-sticky{position:sticky;top:0;z-index:10;background:var(--paper);padding:14px 20px 12px;border-bottom:1px solid var(--line)}.mx-nav-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}.btn-nav{height:42px;border-radius:21px;border:none;font-size:.86rem;font-weight:800;letter-spacing:.01em;display:flex;align-items:center;justify-content:center;gap:6px;transition:background .15s}.btn-nav.home{background:var(--sky-tint);color:var(--navy)}.btn-nav.home:hover{background:var(--sky-tint-2)}.btn-nav.file{background:var(--blue);color:#fff}.btn-nav.file:hover{background:var(--blue-hover)}.mx-body{padding:18px 20px 0;display:flex;flex-direction:column;gap:16px}.section-card{background:var(--paper);border:1px solid var(--line-strong);border-radius:14px;padding:16px 18px 18px;transition:border-color .15s}.section-card:hover{border-color:#b4cbe9}.section-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px dashed var(--line)}.section-icon{flex:none;width:32px;height:32px;border-radius:8px;background:var(--sky-tint);color:var(--blue);display:flex;align-items:center;justify-content:center}.section-titles{flex:1;min-width:0}.section-title{font-family:var(--font-ui);font-size:.9rem;font-weight:800;color:var(--navy);text-transform:uppercase;letter-spacing:.03em}.toggle-switch{position:relative;display:inline-block;width:42px;height:24px;flex:none}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;inset:0;background-color:#d0d8e6;border-radius:24px;transition:background-color .2s}.toggle-slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;border-radius:50%;transition:transform .2s}.toggle-switch input:checked+.toggle-slider{background-color:var(--blue)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(18px)}.conditional-block{transition:opacity .2s}.conditional-block.is-hidden{display:none}.doc-file-row{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--sky-tint);border:1px solid var(--line-strong);border-radius:10px;margin-bottom:10px}.doc-file-row svg{color:var(--blue);flex:none}.doc-file-name{font-weight:800;font-size:.92rem;color:var(--navy);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.doc-stats{display:flex;gap:8px;flex-wrap:wrap}.doc-stat{background:var(--paper);border:1px solid var(--line);color:var(--ink-soft);font-size:.78rem;font-weight:700;padding:5px 11px;border-radius:6px}.doc-stat.total{background:var(--navy);border-color:var(--navy);color:#fff}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 12px}.field-float{display:flex;flex-direction:column;gap:5px}.field-float.span-2{grid-column:1 / -1}.field-float label{font-size:.76rem;font-weight:700;color:var(--slate)}.select-block{width:100%;height:40px;border:1px solid var(--line-strong);border-radius:8px;padding:0 12px;font-size:.88rem;font-weight:500;color:var(--ink);background:#fafcff;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2352657F' stroke-width='2.4'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;transition:border-color .15s}.select-block:focus{background:#fff;border-color:var(--blue);outline:none}.input-block{width:100%;height:40px;border:1px solid var(--line-strong);border-radius:8px;padding:0 12px;font-size:.88rem;font-weight:500;color:var(--ink);background:#fafcff;transition:border-color .15s,background .15s}.input-block:focus{background:#fff;border-color:var(--blue);outline:none}.input-block::placeholder,.select-block::placeholder,.code-input::placeholder{color:var(--slate-dim);opacity:.85;font-weight:400;font-style:normal}.brush-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.brush-card{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;background:#fafcff;cursor:pointer;transition:border-color .15s,background .15s}.brush-card:hover{border-color:var(--line-strong);background:var(--sky-tint)}.brush-card.selected{border-color:var(--blue);background:var(--paper)}.brush-swatch{position:relative;flex:none;width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center}.brush-swatch svg{width:15px;height:15px;color:#fff;opacity:0;transform:scale(.5);transition:opacity .15s,transform .15s}.brush-card.selected .brush-swatch svg{opacity:1;transform:scale(1)}.brush-card .option-label{font-size:.86rem;font-weight:700;color:var(--ink)}.part-card{border:1px solid var(--line-strong);border-radius:10px;overflow:hidden;background:var(--paper)}.part-card+.part-card{margin-top:12px}.part-card-head{background:#edf4fd;color:var(--navy);font-size:.8rem;font-weight:800;padding:9px 12px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;text-transform:uppercase;letter-spacing:.02em}.part-card-head .count{color:var(--slate);font-weight:700;text-transform:none;font-size:.76rem}.part-card-body{padding:16px 12px 14px;display:flex;flex-wrap:wrap;gap:14px 10px;align-items:center;background:#fff}.q-grid{display:inline-grid;gap:8px;max-width:100%;align-items:center}.q-bubble{width:32px;height:32px;border-radius:50%;border:none;color:#fff;font-size:.8rem;font-weight:800;display:flex;align-items:center;justify-content:center;cursor:pointer;flex:none;transition:transform .12s,box-shadow .12s}.q-bubble:hover{transform:scale(1.08)}.q-bubble.ring{outline:2px solid var(--paper);box-shadow:0 0 0 4px var(--ink)}.q-bubble.shake-hint{animation:bubble-shake .3s ease-in-out}@keyframes bubble-shake{0%,to{transform:translate(0)}25%{transform:translate(-3px)}75%{transform:translate(3px)}}.cluster{position:relative;display:inline-flex;flex-direction:column;align-items:flex-start;min-width:96px;max-width:100%;padding:8px 10px;border-radius:10px;border:1.5px solid;margin:0;box-sizing:border-box}.cluster-bubbles{display:grid;gap:8px;max-width:100%;align-items:center}.g-chip{display:inline-flex;align-items:center;gap:5px;font-family:var(--font-ui);font-weight:700;letter-spacing:.01em;border-radius:20px;border:1px solid;white-space:nowrap}.g-chip .dot{width:6px;height:6px;border-radius:50%;flex:none}.g-chip.g0{background:var(--g0-bg);color:var(--g0-ink);border-color:var(--g0-border)}.g-chip.g0 .dot{background:var(--g0-dot)}.g-chip.g1{background:var(--g1-bg);color:var(--g1-ink);border-color:var(--g1-border)}.g-chip.g1 .dot{background:var(--g1-dot)}.g-chip.g2{background:var(--g2-bg);color:var(--g2-ink);border-color:var(--g2-border)}.g-chip.g2 .dot{background:var(--g2-dot)}.g-chip.g3{background:var(--g3-bg);color:var(--g3-ink);border-color:var(--g3-border)}.g-chip.g3 .dot{background:var(--g3-dot)}.cluster-tag.g-chip{position:absolute;top:-10px;left:8px;font-size:.58rem;padding:2px 7px;z-index:2}.cluster-lock{position:absolute;top:-12px;right:8px;z-index:2;width:24px;height:24px;border-radius:50%;background:linear-gradient(180deg,#fff,#f1f5f9);border:1.5px solid #CBD5E1;color:#64748b;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 1.5px 4px #00000014;transition:all .22s cubic-bezier(.34,1.56,.64,1)}.cluster-lock:hover{transform:translateY(-1px) scale(1.1);border-color:#94a3b8;color:#334155;box-shadow:0 3px 8px #0000001f}.cluster-lock:active{transform:scale(.92)}.cluster-lock svg{width:12.5px;height:12.5px}.cluster-lock.locked{background:linear-gradient(135deg,#f59e0b,#d97706);border-color:#b45309;color:#fff;box-shadow:0 2px 7px #d977066b,inset 0 1px 1px #fff6}.cluster-lock.locked:hover{background:linear-gradient(135deg,#fbbf24,#b45309);box-shadow:0 3px 10px #d977068c,inset 0 1px 1px #ffffff80}.accordion-head{width:100%;background:transparent;border:none;padding:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer}.accordion-caret{color:var(--slate);transition:transform .15s;flex:none}.accordion-body{display:flex;flex-direction:column;gap:8px;margin-top:14px}.accordion-body.is-collapsed{display:none}.code-field{display:flex;align-items:center;gap:10px}.code-field .n{font-size:.8rem;color:var(--navy);font-weight:800;flex:none;width:18px;text-align:center}.code-input{flex:1;height:38px;border:1px solid var(--line-strong);border-radius:8px;padding:0 12px;font-size:.9rem;font-weight:500;color:var(--ink-soft);min-width:0;background:#fafcff;transition:border-color .15s,background .15s}.code-input:focus{background:#fff;border-color:var(--blue);outline:none}.tpl-options-container{display:flex;flex-direction:column;gap:8px;transition:opacity .2s}.tpl-options-container.is-disabled{opacity:.4;pointer-events:none}.option-card{display:flex;align-items:center;gap:12px;padding:11px 12px;border:1.5px solid var(--line);border-radius:10px;background:#fafcff;cursor:pointer;transition:border-color .15s,background .15s}.option-card:hover{border-color:var(--line-strong);background:var(--sky)}.option-card.selected{border-color:var(--blue);background:var(--paper)}.option-radio{flex:none;width:16px;height:16px;border-radius:50%;border:2px solid var(--line-strong);position:relative}.option-card.selected .option-radio{border-color:var(--blue)}.option-card.selected .option-radio:after{content:"";position:absolute;inset:2.5px;border-radius:50%;background:var(--blue)}.tpl-preview{flex:1;font-family:var(--font-paper);font-size:.74rem;line-height:1.4;color:#1a1a1a;text-align:center;min-width:0;padding:8px 6px;background:var(--sky);border-radius:6px}.tpl-preview .l1{display:block;font-weight:800;color:var(--navy);font-size:.76rem;margin-bottom:1px;text-transform:uppercase}.mx-cta-wrap{padding:20px 20px 10px}.btn-cta{width:100%;height:48px;border:none;border-radius:24px;background:linear-gradient(135deg,var(--blue) 0%,var(--navy) 100%);color:#fff;font-size:.98rem;font-weight:800;letter-spacing:.02em;transition:background .15s}.btn-cta:hover{opacity:.95}.mx-right{height:100vh;overflow-y:auto;overflow-anchor:none;padding:32px 40px 80px}.preview-sheet{max-width:820px;margin:0 auto;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);padding:44px 50px;font-family:var(--font-paper);color:#111}#exam-header-wrapper{transition:opacity .2s}#exam-header-wrapper.is-hidden,.tpl-sheet-view{display:none}.tpl-sheet-view.is-active{display:block}.sheet-masthead{display:grid;grid-template-columns:1fr 1.18fr;gap:16px;font-size:.84rem;text-align:center;align-items:start;font-family:var(--font-paper);margin-bottom:12px}.masthead-left,.masthead-right{display:flex;flex-direction:column;align-items:center}.masthead-dept{font-weight:700;font-size:.92rem;line-height:1.3;text-transform:uppercase;letter-spacing:.01em}.masthead-school{font-weight:700;font-size:.92rem;line-height:1.3;text-transform:uppercase;letter-spacing:.01em;margin-top:2px}.school-name-underline{display:inline-block;border-bottom:1.5px solid #111;padding-bottom:1px}.masthead-divider{display:none}.masthead-pages{font-size:.8rem;font-style:italic;line-height:1.3;color:#333;margin-top:3px}.masthead-exam{font-weight:700;font-size:.96rem;line-height:1.3;text-transform:uppercase;letter-spacing:.01em}.masthead-year{font-weight:700;font-size:.88rem;line-height:1.35;margin-top:2px}.masthead-subject{font-size:.88rem;line-height:1.35;margin-top:2px}.masthead-duration{font-size:.82rem;line-height:1.35;margin-top:2px}.sheet-student-top{display:flex;justify-content:space-between;align-items:baseline;font-size:.88rem;font-family:var(--font-paper);font-style:italic;margin-top:18px;padding-bottom:3px;border-bottom:1.5px solid #111;margin-bottom:8px}.sheet-code-row{display:flex;justify-content:flex-end;margin-top:6px;margin-bottom:14px;font-family:var(--font-paper)}.exam-code-box{display:inline-block;border:1.5px solid #111;padding:2px 10px;font-size:.88rem;font-weight:700;background:#fff}.moet-masthead{position:relative;display:grid;grid-template-columns:1.05fr 1.25fr;gap:16px;font-size:.84rem;text-align:center;align-items:start;margin-bottom:14px;font-family:var(--font-paper)}.moet-left{position:relative}.moet-org{font-weight:700;font-size:.92rem;text-transform:uppercase;letter-spacing:.01em}.moet-badge{display:inline-block;font-weight:700;font-size:.84rem;margin-top:2px;border-bottom:1.2px solid #111;padding-bottom:1px}.moet-pages{font-size:.78rem;font-style:italic;margin-top:4px}.moet-right .moet-exam-name{font-weight:700;font-size:.96rem;text-transform:uppercase;line-height:1.3}.moet-right .moet-sub{margin-top:3px;font-size:.84rem;line-height:1.4}.official-seal{position:absolute;top:-10px;left:15px;width:105px;height:105px;pointer-events:none;transform:rotate(-7deg);opacity:.86;mix-blend-mode:multiply;z-index:2;filter:contrast(1.08)}.moet-code-box{border:1.4px solid #111;display:inline-block;padding:2px 10px;font-weight:700;font-size:.88rem;margin-top:4px}.part-banner{background:var(--sky);color:var(--ink);font-weight:700;font-size:.92rem;padding:8px 14px;border-radius:6px;margin:22px 0 14px;font-family:var(--font-ui)}.q-item{margin-bottom:16px;font-size:.94rem;line-height:1.65}.q-item .qnum{font-weight:700}.q-options{display:grid;align-items:baseline;gap:6px 18px;margin-top:6px;padding-left:18px}.q-options.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.q-options.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.q-options.cols-1{grid-template-columns:minmax(0,1fr)}.q-options .opt{display:flex;align-items:baseline;gap:6px;min-width:0;word-break:normal;line-height:1.6}.q-options .opt b{flex-shrink:0;white-space:nowrap;color:var(--sig-options);font-style:italic}.q-options .opt.correct b{color:var(--sig-correct);font-weight:700}.q-options .opt .opt-content{min-width:0;flex:1;word-break:normal;overflow-wrap:break-word}.q-options .opt .opt-content u{text-decoration:underline;text-underline-offset:2px}.preview-g-chip{font-size:.68rem;padding:4px 12px 4px 10px;margin-bottom:10px}.preview-g-chip .dot{width:7px;height:7px}.passage{background:var(--sky);border-left:3px solid var(--blue);padding:10px 14px;border-radius:0 8px 8px 0;margin:0 0 14px;font-size:.9rem;font-style:italic;color:#222;font-family:var(--font-ui)}.preview-img{display:block;max-width:min(100%,560px);max-height:360px;width:auto;height:auto;object-fit:contain;margin:10px auto;border-radius:4px}.exam-table-wrapper{width:100%;max-width:100%;overflow-x:auto;margin:12px 0;box-sizing:border-box;-webkit-overflow-scrolling:touch}.exam-table{width:100%;max-width:100%;margin:0 auto;border-collapse:collapse;font-size:.85rem;font-family:var(--font-paper);box-sizing:border-box;table-layout:auto}.exam-table td,.exam-table th{border:1px solid #333;padding:4px 6px;text-align:center;vertical-align:middle;box-sizing:border-box;line-height:1.3}.exam-table tr:first-child td,.exam-table tr:first-child th{font-weight:600}.exam-table td:first-child{text-align:left;white-space:nowrap;padding-left:8px;padding-right:8px}.exam-table tr:first-child td:first-child{text-align:center}.modal-overlay{position:fixed;inset:0;background:#0b1f3a73;display:none;align-items:center;justify-content:center;z-index:50;backdrop-filter:blur(2px)}.modal-overlay.is-open{display:flex}.modal-card{background:var(--paper);border-radius:var(--radius-lg);padding:32px 36px;width:min(90vw,380px);text-align:center}.modal-card h3{font-family:var(--font-display);font-size:1.05rem;color:var(--ink);margin-bottom:18px}.progress-track{height:8px;border-radius:5px;background:var(--sky-tint-2);overflow:hidden}.progress-fill{height:100%;background:var(--blue);width:0%;transition:width .25s linear}.modal-card p{margin-top:12px;font-size:.83rem;color:var(--slate-dim)}@media (max-width:1200px){.mixer{grid-template-columns:390px 1fr}.mx-right{padding:24px 18px 60px}.preview-sheet{padding:30px 24px}}@media (max-width:1024px){.mixer{grid-template-columns:360px 1fr}.mx-right{padding:20px 16px 50px}.preview-sheet{padding:26px 20px}.q-options.cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:860px){.hero{grid-template-columns:1fr;padding-top:30px;gap:32px}.hero-art{order:-1;max-width:280px;margin:0 auto}.hero-text h1{max-width:none}.topnav-links{display:none}}@media (max-width:820px){.mixer{grid-template-columns:1fr;height:auto}.mx-left{height:auto;border-right:none;border-bottom:1px solid var(--line)}.mx-left-sticky{position:static}.mx-right{height:auto;padding:24px 16px 60px}.preview-sheet{padding:26px 18px}.sheet-masthead{font-size:.74rem}.moet-masthead{grid-template-columns:1fr;gap:10px}.q-options,.q-options.cols-4,.q-options.cols-2{grid-template-columns:1fr!important}.brush-grid{grid-template-columns:1fr 1fr}}@media (max-width:520px){.topbar{padding:14px 18px}.hero{padding:24px 18px}.dropzone{flex-direction:column;text-align:center}.btn-primary{width:100%}.field-grid,.brush-grid{grid-template-columns:1fr}.sheet-student-top{flex-direction:column;gap:4px}.q-options,.q-options.cols-4,.q-options.cols-2{grid-template-columns:1fr!important}}.g-tag-label{font-size:16px;font-weight:800;letter-spacing:.02em;font-style:italic;color:#c026d3;margin:14px 0 4px;font-family:JetBrains Mono,Fira Code,Cascadia Code,monospace}.g-tag-label .g-bracket{font-size:1.3em;font-weight:900;font-style:normal;letter-spacing:0;vertical-align:middle;line-height:1}.guide-figure{margin:16px 0 20px;background:var(--sky);border:none;border-radius:10px;padding:14px 16px;display:flex;justify-content:center;align-items:center}.guide-figure:hover{border-color:transparent}.guide-image{display:block;max-width:100%;height:auto;border-radius:6px;margin:0 auto;border:none;background:transparent;cursor:zoom-in;transition:opacity .15s ease}.guide-image:hover{opacity:.94}.guide-caption{margin-top:9px;font-size:.84rem;color:var(--slate);font-weight:500;padding:0 4px;line-height:1.5}.guide-image-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px;margin:14px 0}.ans-example-rows{display:flex;flex-direction:column;gap:10px;margin-top:6px;font-family:var(--font-paper),"Times New Roman",serif,sans-serif}.ans-row{display:flex;align-items:center;gap:22px;font-size:1.05rem;font-weight:700;color:#1e293b;line-height:1.4}.ans-row span,.ans-row b{display:inline-block}.ans-row .u-ans{display:inline-block;text-decoration:underline;text-decoration-skip-ink:none;text-underline-offset:4px;text-decoration-thickness:2px;border-bottom:2px solid currentColor;text-decoration:none;padding-bottom:2px;line-height:1.15}.ans-row .red-ans{color:#dc2626}.ans-row .blue-ans{color:#2563eb}.image-modal-overlay{position:fixed;inset:0;background:#0b1f3ac7;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9999;opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;padding:24px;cursor:zoom-out}.image-modal-overlay.is-open{opacity:1;visibility:visible}.image-modal-container{position:relative;max-width:94vw;max-height:92vh;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:default}.image-modal-content{position:relative;display:flex;justify-content:center;align-items:center;max-width:100%;max-height:86vh}.image-modal-img{max-width:92vw;max-height:84vh;width:auto;height:auto;object-fit:contain;border-radius:8px;box-shadow:0 20px 48px #00000061;background:#fff;transform:scale(.94);transition:transform .22s cubic-bezier(.16,1,.3,1);user-select:none}.image-modal-overlay.is-open .image-modal-img{transform:scale(1)}.image-modal-close{position:absolute;top:-16px;right:-16px;width:38px;height:38px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--navy);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 14px #0003;transition:background .15s ease,transform .15s ease;z-index:10}.image-modal-close:hover{background:#f1f5f9;transform:scale(1.08)}.image-modal-close:active{transform:scale(.95)}.image-modal-caption{margin-top:12px;color:#fff;font-size:.92rem;font-weight:500;text-shadow:0 1px 3px rgba(0,0,0,.6);text-align:center;max-width:80vw}.floating-contact-bar{position:fixed;bottom:28px;right:28px;z-index:9999;display:flex;flex-direction:column;gap:14px;align-items:center}.floating-btn{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;text-decoration:none;position:relative;transition:transform .25s ease;box-shadow:0 4px 14px #00000029}.floating-btn:hover{transform:scale(1.15);animation-play-state:paused}.floating-btn-messenger{background:linear-gradient(135deg,#0084ff,#00c6ff);animation:fab-shake 4s infinite ease-in-out,fab-glow-messenger 2.2s infinite ease-out}.floating-btn-zalo{background:#0068ff;font-weight:800;font-size:14px;font-family:Arial,sans-serif;letter-spacing:-.5px;animation:fab-shake 4s infinite ease-in-out .7s,fab-glow-zalo 2.2s infinite ease-out .7s}.floating-btn-phone{background:#10b981;color:#fff;box-shadow:0 4px 14px #00000029;animation:fab-shake 4s infinite ease-in-out 1.4s,fab-glow-phone 2.2s infinite ease-out 1.4s}.floating-btn-phone:hover{transform:scale(1.15);animation-play-state:paused;background:#059669}.floating-btn-disabled{opacity:.55;filter:grayscale(40%);animation:none!important;cursor:not-allowed!important;box-shadow:none!important}.floating-btn-disabled:hover{transform:none!important;box-shadow:none!important}@media (max-width: 768px){.floating-contact-bar{right:12px;bottom:max(16px,env(safe-area-inset-bottom,16px));gap:8px;z-index:99}.floating-btn{width:44px;height:44px;box-shadow:0 3px 10px #0000002e}.floating-btn svg{width:22px;height:22px}.floating-btn-zalo span:first-child{font-size:12px}.floating-tooltip{display:none!important}}.fcb-modal-overlay{position:fixed;inset:0;background:#0f172a59;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:99999;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s ease}.fcb-modal-overlay.active{opacity:1;pointer-events:all}.fcb-modal-card{position:relative;background:#fff;border:1.5px solid #e2e8f0;border-radius:20px;padding:32px 28px 24px;width:350px;max-width:90vw;box-shadow:none!important;text-align:center;animation:none!important}.fcb-modal-overlay.active .fcb-modal-card{transform:none}.fcb-modal-close{position:absolute;top:14px;right:16px;background:#f1f5f9;border:none;color:#64748b;width:30px;height:30px;border-radius:50%;cursor:pointer;font-size:13px;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s;line-height:1;box-shadow:none!important}.fcb-modal-close:hover{background:#e2e8f0;color:#0f172a}.fcb-modal-icon{width:58px;height:58px;background:#10b981;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:#fff;box-shadow:none!important;animation:none!important}.fcb-modal-title{font-size:18px;font-weight:700;color:#0f172a;margin:0 0 8px;letter-spacing:-.3px}.fcb-modal-desc{font-size:13.5px;color:#64748b;margin:0 0 20px;line-height:1.55}.fcb-modal-links{display:flex;flex-direction:column;gap:10px}.fcb-modal-link{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:12px;text-decoration:none;transition:background .15s,border-color .15s;cursor:pointer;box-shadow:none!important}.fcb-modal-link:hover{transform:none!important}.fcb-link-zalo{background:#f0f7ff;border:1px solid #bae6fd}.fcb-link-zalo:hover{background:#e0f2fe;border-color:#7dd3fc}.fcb-link-messenger{background:#f5f3ff;border:1px solid #ddd6fe}.fcb-link-messenger:hover{background:#ede9fe;border-color:#c4b5fd}.fcb-link-icon{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden;box-shadow:none!important}.fcb-icon-zalo{background:#0068ff;font-weight:800;font-size:11px;font-family:Arial,sans-serif;color:#fff;letter-spacing:-.5px}.fcb-icon-messenger{background:linear-gradient(135deg,#0084ff,#00c6ff)}.fcb-link-info{flex:1;text-align:left;display:flex;flex-direction:column;gap:1px}.fcb-link-label{font-size:13px;font-weight:700;color:#0f172a}.fcb-link-value{font-size:12px;color:#64748b}.fcb-link-arrow{color:#94a3b8;flex-shrink:0;transition:color .15s}.fcb-modal-link:hover .fcb-link-arrow{color:#475569}.floating-tooltip{position:absolute;right:64px;background:#0f172ae6;color:#fff;padding:5px 12px;border-radius:6px;font-size:12px;font-weight:600;white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .2s ease;box-shadow:0 4px 12px #0003}.floating-btn:hover .floating-tooltip{opacity:1}@keyframes fab-shake{0%,80%,to{transform:rotate(0) scale(1)}85%{transform:rotate(-7deg) scale(1.05)}90%{transform:rotate(7deg) scale(1.05)}95%{transform:rotate(-4deg) scale(1.03)}}@keyframes fab-glow-messenger{0%{box-shadow:0 0 #0084ff99,0 4px 12px #00000026}70%{box-shadow:0 0 0 14px #0084ff00,0 4px 12px #00000026}to{box-shadow:0 0 #0084ff00,0 4px 12px #00000026}}@keyframes fab-glow-zalo{0%{box-shadow:0 0 #0068ff99,0 4px 12px #00000026}70%{box-shadow:0 0 0 14px #0068ff00,0 4px 12px #00000026}to{box-shadow:0 0 #0068ff00,0 4px 12px #00000026}}@keyframes fab-glow-phone{0%{box-shadow:0 0 #10b98199,0 4px 12px #00000026}70%{box-shadow:0 0 0 14px #10b98100,0 4px 12px #00000026}to{box-shadow:0 0 #10b98100,0 4px 12px #00000026}}@media (max-width: 640px){.floating-contact-bar{bottom:20px;right:18px;gap:10px}.floating-btn{width:46px;height:46px}}.math-omml{font-family:"Cambria Math",Times New Roman,serif;display:inline;vertical-align:baseline;line-height:inherit}.math-vec{position:relative;display:inline-block;vertical-align:baseline;line-height:inherit;margin:0 1px}.math-vec-base{display:inline;font-style:italic;font-family:"Cambria Math",Times New Roman,serif;line-height:inherit}.math-vec-arrow{position:absolute;top:-.04em;left:0;width:100%;min-width:7px;height:.26em;pointer-events:none;overflow:visible;color:currentColor;display:block}.math-hat{position:relative;display:inline-flex;flex-direction:column;align-items:center;vertical-align:baseline;line-height:inherit;margin:0 1px}.math-hat-base{display:inline;font-style:italic}.math-hat-symbol{position:absolute;top:-.22em;left:0;width:100%;height:.26em;pointer-events:none;overflow:visible;color:currentColor;display:block}.math-bar{text-decoration:overline;display:inline}.mathtype-preview{display:inline-block;vertical-align:middle;max-height:2.3em;width:auto;margin:0 1.5px}.preview-sheet .katex{font-size:1.05em;line-height:1.2;text-indent:0;text-rendering:auto;border-color:currentColor}.preview-sheet .katex-display{margin:.5em 0;overflow-x:auto;overflow-y:hidden}.seo-content-section{background:linear-gradient(180deg,#fff,#f8fafc);border-top:1px solid var(--line);padding:56px 24px 80px;color:var(--ink);font-family:var(--font-base)}.seo-content-container{max-width:1100px;margin:0 auto}.seo-content-header{margin-bottom:40px}.seo-main-title{color:var(--navy);font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:700;font-family:var(--font-display);line-height:1.35;margin:0 0 16px;letter-spacing:-.02em}.seo-lead{color:var(--slate);font-size:1.05rem;line-height:1.7;margin:0}.seo-lead strong{color:var(--navy)}.seo-block{margin-top:48px}.seo-section-title{color:var(--navy);font-size:1.35rem;font-weight:700;font-family:var(--font-display);margin:0 0 20px;position:relative;padding-bottom:8px;border-bottom:2px solid var(--line)}.seo-section-title:after{content:"";position:absolute;left:0;bottom:-2px;width:48px;height:2px;background:var(--blue)}.seo-features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.seo-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 2px 10px #0e3d800a;transition:transform .2s,box-shadow .2s}.seo-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px #0e3d8014}.seo-card-badge{display:inline-block;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--blue);background:var(--blue-soft);padding:3px 8px;border-radius:6px;margin-bottom:10px}.seo-card-title{color:var(--navy);font-size:1.08rem;font-weight:700;margin:0 0 8px}.seo-card-desc{color:var(--slate);font-size:.9rem;line-height:1.55;margin:0}.seo-steps-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px}.seo-step-box{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:0 2px 8px #0e3d8008}.seo-step-num{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#1852b4);color:#fff;font-weight:800;font-size:.95rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}.seo-step-detail h4{color:var(--navy);font-size:1.02rem;font-weight:700;margin:0 0 6px}.seo-step-detail p{color:var(--slate);font-size:.88rem;line-height:1.5;margin:0}.seo-text{color:var(--slate);font-size:.98rem;line-height:1.7;margin:0}.seo-link{color:var(--blue);font-weight:600;text-decoration:underline;text-underline-offset:3px}.seo-link:hover{color:var(--navy)}.seo-faq-list{display:flex;flex-direction:column;gap:12px}.seo-faq-card{background:#fff;border:1.5px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s,box-shadow .2s}.seo-faq-card[open]{border-color:var(--blue);box-shadow:0 4px 14px #2f6fe414}.seo-faq-summary{padding:16px 20px;font-weight:600;font-size:1rem;color:var(--navy);cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;user-select:none}.seo-faq-summary::-webkit-details-marker{display:none}.seo-faq-summary:after{content:"+";font-size:1.4rem;font-weight:700;color:var(--blue);line-height:1;transition:transform .2s ease}.seo-faq-card[open] .seo-faq-summary:after{content:"−"}.seo-faq-content{padding:0 20px 18px;font-size:.93rem;color:var(--slate);line-height:1.65;border-top:1px solid var(--sky-tint)}@media (max-width: 768px){.seo-content-section{padding:36px 16px 60px}.seo-features-grid,.seo-steps-container{grid-template-columns:1fr}}.hero-video-box{width:100%;max-width:500px;margin:0 auto}.simple-video-frame{position:relative;width:100%;aspect-ratio:16 / 9;border-radius:14px;overflow:hidden;background:#0f172a;border:1.5px solid var(--line-strong);box-shadow:0 8px 24px -6px #0f172a1f}.simple-video-frame iframe{width:100%;height:100%;border:none;display:block}.hero-video-caption{margin-top:10px;font-size:.85rem;font-weight:500;color:var(--slate);text-align:center;display:flex;align-items:center;justify-content:center;gap:7px}.hero-video-caption svg{color:#ef4444;flex:none}.simple-video-section{max-width:820px;margin:24px auto 32px;background:#fff;border:1.5px solid var(--line-strong);border-radius:18px;padding:24px;box-shadow:0 4px 18px -4px #0f172a0f}.simple-video-header{margin-bottom:16px}.simple-video-header h3{font-size:1.15rem;font-weight:700;color:var(--ink);margin:0 0 6px;display:flex;align-items:center;gap:8px}.simple-video-header h3:before{content:"";display:inline-block;width:4px;height:18px;background:var(--blue);border-radius:2px}.simple-video-header p{font-size:.9rem;color:var(--slate);margin:0;line-height:1.5}@media (max-width: 990px){.hero-video-box{margin-top:24px;max-width:100%}.simple-video-section{padding:16px;margin:18px auto 24px;border-radius:14px}}.exam-audit-banner{border-radius:12px;padding:16px 20px;margin-bottom:24px;font-family:var(--font-ui);animation:fadeIn .3s ease}.exam-audit-banner.has-errors{background:#fff8f6;border:1.5px solid #fecaca;box-shadow:0 4px 14px #ef444414}.exam-audit-banner.is-valid{background:#f0fdf4;border:1.5px solid #bbf7d0;box-shadow:0 2px 10px #22c55e0f}.audit-banner-header{display:flex;align-items:flex-start;gap:12px}.audit-icon-wrap{flex-shrink:0;color:#dc2626;padding-top:2px}.audit-title-content{flex:1}.audit-headline{font-size:.95rem;font-weight:700;color:#991b1b;line-height:1.4}.audit-headline .badge-crit-count{background:#dc2626;color:#fff;padding:2px 8px;border-radius:4px;font-weight:800;display:inline-block;margin:0 2px}.audit-headline .badge-warn-count{background:#d97706;color:#fff;padding:2px 8px;border-radius:4px;font-weight:800;display:inline-block;margin:0 2px}.audit-sub{font-size:.84rem;color:#4b5563;margin-top:4px;line-height:1.5}.audit-pills-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;padding-top:12px;border-top:1px dashed #fca5a5}.pill-dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0;display:inline-block;opacity:.85}.audit-jump-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:24px;font-size:.8rem;font-weight:700;cursor:pointer;transition:all .18s cubic-bezier(.16,1,.3,1);text-decoration:none;border:none}.audit-jump-pill.critical{background:#fee2e2;color:#991b1b;border:1px solid #f87171}.audit-jump-pill.critical:hover{background:#fecaca;transform:translateY(-2px);box-shadow:0 4px 10px #dc262633}.audit-jump-pill.warning{background:#fef3c7;color:#92400e;border:1px solid #fcd34d}.audit-jump-pill.warning:hover{background:#fde68a;transform:translateY(-2px);box-shadow:0 4px 10px #d977062e}.audit-valid-row{display:flex;align-items:center;gap:12px;color:#15803d;font-size:.92rem;line-height:1.5}.audit-valid-icon{flex-shrink:0;color:#16a34a}.q-item.has-critical-error{border-left:4px solid #dc2626!important;background:#fef2f280;border-radius:0 8px 8px 0;padding:10px 14px 14px 16px!important;margin-bottom:22px;box-shadow:0 2px 8px #dc26260d}.q-item.has-warning-issue{border-left:4px solid #f59e0b!important;background:#fefce866;border-radius:0 8px 8px 0;padding:10px 14px 14px 16px!important;margin-bottom:22px}.q-alerts-container{margin-top:12px;display:flex;flex-direction:column;gap:8px}.q-alert-box{border-radius:8px;padding:10px 14px;font-size:.86rem;line-height:1.5;font-family:var(--font-ui)}.q-alert-box.severity-critical{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}.q-alert-box.severity-warning{background:#fffbeb;border:1px solid #fde68a;color:#92400e}.q-alert-box.severity-info{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af}.q-alert-header{display:flex;align-items:center;gap:8px;margin-bottom:4px}.q-alert-badge{display:inline-flex;align-items:center;padding:2px 7px;border-radius:4px;font-size:.7rem;font-weight:800;letter-spacing:.5px;text-transform:uppercase;flex-shrink:0}.q-alert-badge.critical{background:#dc2626;color:#fff}.q-alert-badge.warning{background:#d97706;color:#fff}.q-alert-badge.info{background:#2563eb;color:#fff}.q-alert-title{font-weight:700;font-size:.88rem;flex:1}.q-alert-message{font-size:.84rem;margin-bottom:4px;opacity:.96}.q-alert-fix{display:flex;align-items:baseline;gap:6px;margin-top:6px;padding:6px 10px;background:#ffffffd9;border-radius:6px;font-size:.82rem;border-left:3px solid currentColor}.q-alert-fix-label{font-weight:700;color:currentColor;flex-shrink:0}.q-alert-fix-text{flex:1}.opt.was-marked-duplicate{background:#fee2e299!important;border:1.5px dashed #dc2626!important;border-radius:6px;padding:4px 8px}.opt-marked-key-badge{display:inline-flex;align-items:center;font-size:.68rem;font-weight:700;padding:1px 6px;border-radius:3px;background:#fee2e2;color:#b91c1c;border:1px solid #fca5a5;margin-left:8px;vertical-align:middle;white-space:nowrap}.empty-options-placeholder{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#fef2f2;border:1.5px dashed #ef4444;border-radius:8px;color:#b91c1c;font-size:.88rem;font-weight:600;margin-top:8px;font-style:italic}@keyframes pulseAuditGlow{0%{box-shadow:0 0 #dc2626b3;background:#fee2e2e6}50%{box-shadow:0 0 0 14px #dc262600;background:#fee2e2b3}to{box-shadow:0 0 #dc262600}}.pulse-highlight{animation:pulseAuditGlow 1.2s ease 2;transition:all .3s ease}.doc-stat.error-pill{background:#fee2e2!important;color:#b91c1c!important;font-weight:700!important;border:1px solid #fca5a5!important}.doc-stat.warn-pill{background:#fef3c7!important;color:#b45309!important;font-weight:700!important;border:1px solid #fde68a!important}.doc-stat.valid-pill{background:#f0fdf4!important;color:#15803d!important;font-weight:700!important;border:1px solid #bbf7d0!important}.mix-guard-overlay{position:fixed;inset:0;background:#0f172aa6;backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9999;padding:16px;animation:fadeIn .2s ease}.mix-guard-modal{background:#fff;border-radius:16px;max-width:580px;width:100%;box-shadow:0 20px 40px #0003;overflow:hidden;display:flex;flex-direction:column;animation:modalEnter .25s cubic-bezier(.16,1,.3,1);font-family:var(--font-ui)}.mix-guard-header{background:#fef2f2;padding:20px 24px 16px;border-bottom:1px solid #fecaca;display:flex;align-items:flex-start;gap:14px}.mix-guard-icon{color:#dc2626;flex-shrink:0}.mix-guard-title-wrap{flex:1}.mix-guard-title{font-size:1.15rem;font-weight:800;color:#991b1b;margin:0}.mix-guard-subtitle{font-size:.88rem;color:#4b5563;margin-top:4px}.mix-guard-body{padding:20px 24px;max-height:50vh;overflow-y:auto}.mix-guard-list{display:flex;flex-direction:column;gap:10px;margin-top:10px}.mix-guard-item{padding:10px 14px;border-radius:8px;background:#f8fafc;border:1px solid #e2e8f0;display:flex;align-items:flex-start;gap:10px}.mix-guard-item.critical{background:#fff5f5;border-color:#fed7d7}.mix-guard-item-badge{font-size:.72rem;font-weight:800;padding:2px 6px;border-radius:4px;background:#dc2626;color:#fff;white-space:nowrap}.mix-guard-item-info{flex:1}.mix-guard-item-title{font-weight:700;font-size:.88rem;color:#1e293b}.mix-guard-item-desc{font-size:.82rem;color:#64748b;margin-top:2px}.mix-guard-footer{padding:16px 24px 20px;border-top:1px solid #e2e8f0;display:flex;justify-content:flex-end;gap:12px;background:#f8fafc}.btn-guard-fix{padding:10px 20px;border-radius:8px;font-weight:700;font-size:.92rem;background:var(--blue);color:#fff;border:none;cursor:pointer;transition:all .15s ease}.btn-guard-fix:hover{background:var(--blue-hover);transform:translateY(-1px)}.btn-guard-force{padding:10px 18px;border-radius:8px;font-weight:600;font-size:.88rem;background:transparent;color:#64748b;border:1px solid #cbd5e1;cursor:pointer;transition:all .15s ease}.btn-guard-force:hover{background:#fee2e2;color:#991b1b;border-color:#fca5a5}
