*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #f0f2f5;--bg-secondary: rgba(255, 255, 255, .85);--bg-tertiary: rgba(250, 250, 250, .9);--bg-glass: rgba(255, 255, 255, .7);--text-primary: #1a1a2e;--text-secondary: #4a4a68;--text-tertiary: #8a8aa3;--border-color: rgba(255, 255, 255, .3);--border-light: rgba(255, 255, 255, .2);--shadow-color: rgba(0, 0, 0, .08);--shadow-glass: 0 8px 32px rgba(0, 0, 0, .1);--overlay-bg: rgba(0, 0, 0, .4);--accent-color: #667eea;--accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--success-color: #10b981;--danger-color: #ef4444;--blur-amount: 20px;--border-radius-sm: 8px;--border-radius-md: 12px;--border-radius-lg: 16px;--border-radius-xl: 24px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease}[data-theme=dark]{--bg-primary: #0f0f1a;--bg-secondary: rgba(30, 30, 50, .85);--bg-tertiary: rgba(40, 40, 60, .9);--bg-glass: rgba(30, 30, 50, .6);--text-primary: #f0f0f5;--text-secondary: #b0b0c5;--text-tertiary: #707090;--border-color: rgba(255, 255, 255, .1);--border-light: rgba(255, 255, 255, .05);--shadow-color: rgba(0, 0, 0, .3);--shadow-glass: 0 8px 32px rgba(0, 0, 0, .4);--overlay-bg: rgba(0, 0, 0, .6);--accent-color: #818cf8;--accent-gradient: linear-gradient(135deg, #818cf8 0%, #a78bfa 100%);--success-color: #34d399;--danger-color: #f87171}html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji";-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:var(--bg-primary);color:var(--text-primary);line-height:1.6;transition:background-color var(--transition-normal),color var(--transition-normal)}.glass{background:var(--bg-glass);backdrop-filter:blur(var(--blur-amount));-webkit-backdrop-filter:blur(var(--blur-amount));border:1px solid var(--border-color);box-shadow:var(--shadow-glass)}.glass-light{background:#ffffff80;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.animate-fade-in{animation:fadeIn var(--transition-normal) ease forwards}.animate-fade-in-up{animation:fadeInUp var(--transition-slow) ease forwards}.animate-fade-in-down{animation:fadeInDown var(--transition-normal) ease forwards}.animate-scale-in{animation:scaleIn var(--transition-normal) ease forwards}.hover-lift{transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.hover-lift:hover{transform:translateY(-2px);box-shadow:0 8px 24px var(--shadow-color)}.hover-glow{transition:box-shadow var(--transition-fast)}.hover-glow:hover{box-shadow:0 0 20px #667eea4d}button{font-family:inherit;cursor:pointer;transition:all var(--transition-fast)}button:active{transform:scale(.97)}input,textarea{font-family:inherit;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}input:focus,textarea:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 3px #667eea26}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-tertiary);border-radius:3px;transition:background var(--transition-fast)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}::selection{background:var(--accent-color);color:#fff}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/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(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/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(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/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(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/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(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.27"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.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 .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{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 .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.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 .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.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;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;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.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 .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>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.diary-card{display:flex;flex-direction:column;gap:12px;padding:20px;background:var(--bg-glass);backdrop-filter:blur(var(--blur-amount));-webkit-backdrop-filter:blur(var(--blur-amount));border:1px solid var(--border-color);border-radius:var(--border-radius-lg);margin:12px 16px;box-shadow:var(--shadow-glass);animation:fadeInUp .4s ease forwards;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.diary-card:hover{transform:translateY(-2px);box-shadow:0 12px 40px var(--shadow-color)}.card-header-row{display:flex;align-items:flex-start;gap:12px}.card-avatar{flex-shrink:0}.avatar{width:48px;height:48px;border-radius:var(--border-radius-md);background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:18px;overflow:hidden;box-shadow:0 4px 12px #667eea4d;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.avatar:hover{transform:scale(1.05);box-shadow:0 6px 16px #667eea66}.avatar-img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-fast)}.avatar:hover .avatar-img{transform:scale(1.1)}.card-author{flex:1;min-width:0}.author-nickname{font-size:15px;font-weight:600;color:var(--accent-color);display:block;transition:color var(--transition-fast)}.author-nickname:hover{color:var(--text-primary)}.card-menu{position:relative;flex-shrink:0}.card-content{padding-left:60px}.card-header{display:flex;align-items:flex-start;justify-content:flex-end;margin-bottom:8px;position:relative}.card-title{font-size:15px;font-weight:600;color:var(--accent-color);margin:0;line-height:1.4}.menu-button{background:none;border:none;padding:6px;cursor:pointer;color:var(--text-tertiary);display:flex;align-items:center;justify-content:center;border-radius:var(--border-radius-sm);transition:all var(--transition-fast)}.menu-button:hover{color:var(--text-primary);background:var(--bg-tertiary)}.menu-dropdown{position:absolute;top:28px;right:0;background:var(--bg-glass);backdrop-filter:blur(var(--blur-amount));-webkit-backdrop-filter:blur(var(--blur-amount));border-radius:var(--border-radius-md);box-shadow:var(--shadow-glass);overflow:hidden;z-index:10;min-width:100px;border:1px solid var(--border-color);animation:fadeInDown .2s ease forwards}.menu-dropdown button{display:block;width:100%;padding:12px 16px;background:none;border:none;text-align:left;font-size:14px;color:var(--text-primary);cursor:pointer;transition:all var(--transition-fast)}.menu-dropdown button:hover{background:var(--accent-color);color:#fff}.menu-dropdown button.delete{color:var(--danger-color)}.card-text{font-size:15px;color:var(--text-primary);line-height:1.6;margin:0 0 12px;word-break:break-word}.card-text p{margin:0 0 8px}.card-text p:last-child{margin-bottom:0}.card-text h1,.card-text h2,.card-text h3,.card-text h4,.card-text h5,.card-text h6{margin:12px 0 8px;font-weight:600;color:var(--text-primary)}.card-text h1{font-size:1.4em}.card-text h2{font-size:1.3em}.card-text h3{font-size:1.2em}.card-text h4{font-size:1.1em}.card-text code{background:var(--bg-tertiary);padding:2px 6px;border-radius:4px;font-family:SF Mono,Monaco,Consolas,monospace;font-size:.9em}.card-text pre{background:var(--bg-tertiary);padding:12px;border-radius:8px;overflow-x:auto;margin:8px 0}.card-text pre code{background:none;padding:0}.card-text ul,.card-text ol{margin:8px 0;padding-left:20px}.card-text li{margin:4px 0}.card-text a{color:var(--accent-color);text-decoration:none}.card-text a:hover{text-decoration:underline}.card-text blockquote{margin:8px 0;padding:8px 12px;border-left:3px solid var(--accent-color);background:var(--bg-tertiary);color:var(--text-secondary)}.card-text hr{border:none;border-top:1px solid var(--border-color);margin:12px 0}.card-text strong{font-weight:600}.card-text em{font-style:italic}.card-images{display:grid;gap:4px;margin-bottom:12px;max-width:280px}.image-grid-1{grid-template-columns:1fr}.image-grid-2{grid-template-columns:repeat(2,1fr)}.image-grid-3{grid-template-columns:repeat(3,1fr)}.image-grid-4{grid-template-columns:repeat(2,1fr)}.image-grid-6,.image-grid-9{grid-template-columns:repeat(3,1fr)}.card-image-item{aspect-ratio:1;overflow:hidden;border-radius:4px;background:var(--bg-tertiary)}.image-grid-1 .card-image-item{aspect-ratio:auto;max-height:280px}.card-image-item img{width:100%;height:100%;object-fit:cover;cursor:pointer;transition:opacity .2s}.card-image-item img:hover{opacity:.9}.card-footer{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}.footer-left{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.footer-right{display:flex;align-items:center;gap:8px}.card-time{font-size:12px;color:#999}.card-location{display:flex;align-items:center;gap:4px;font-size:12px;color:#576b95}.card-location svg{flex-shrink:0}.delete-btn{background:none;border:none;padding:4px;cursor:pointer;color:var(--text-tertiary);display:flex;align-items:center;justify-content:center;transition:color .2s}.delete-btn:hover{color:var(--danger-color)}.card-exact-time{font-size:11px;color:#bbb}.action-container{position:relative}.action-button{background:var(--bg-tertiary);border:none;padding:6px 12px;border-radius:4px;cursor:pointer;color:var(--accent-color);font-size:14px;letter-spacing:2px}.action-button:hover{background:var(--border-color)}.action-bar{position:absolute;right:100%;top:50%;transform:translateY(-50%);margin-right:8px;background:#4b4b4b;border-radius:4px;display:flex;align-items:center;padding:0;white-space:nowrap;z-index:20}.action-item{display:flex;align-items:center;gap:6px;padding:10px 16px;background:none;border:none;color:#fff;font-size:13px;cursor:pointer;transition:background .2s}.action-item:hover{background:#ffffff1a}.action-item.liked{color:#ff6b6b}.action-item:first-child{border-radius:4px 0 0 4px}.action-item:last-child{border-radius:0 4px 4px 0}.action-divider{width:1px;height:20px;background:#ffffff4d}.interactions-section{margin-top:8px;background:#f7f7f7;border-radius:4px;overflow:hidden}.likes-section{padding:8px 12px;display:flex;align-items:center;gap:6px;font-size:13px;color:#576b95;border-bottom:1px solid #eee}.likes-section svg{color:#ff6b6b}.comments-section{padding:8px 12px}.comment-item{display:flex;align-items:flex-start;gap:4px;font-size:13px;line-height:1.5;margin-bottom:6px;position:relative;padding-right:20px}.comment-item:last-child{margin-bottom:0}.comment-author{color:#576b95;font-weight:500;flex-shrink:0}.comment-content{color:#333;word-break:break-word}.comment-delete{position:absolute;right:0;top:0;background:none;border:none;color:#999;font-size:14px;cursor:pointer;padding:0 4px;opacity:0;transition:opacity .2s}.comment-item:hover .comment-delete{opacity:1}.comment-delete:hover{color:#dc3545}.comment-box{margin-top:12px;background:#fff;border:1px solid #07c160;border-left:3px solid #07c160;border-radius:8px;overflow:hidden}.comment-textarea{width:100%;min-height:80px;padding:12px 16px;border:none;font-size:14px;line-height:1.5;resize:none;outline:none;font-family:inherit;color:#333;background:transparent}.comment-textarea::placeholder{color:#999}.comment-box-actions{display:flex;align-items:center;justify-content:flex-end;padding:8px 12px;gap:8px;border-top:1px solid #f0f0f0}.comment-box-icons{display:flex;align-items:center;gap:4px}.comment-icon-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:none;border:none;cursor:pointer;color:#666;border-radius:4px;transition:all .2s}.comment-icon-btn:hover{background:#f5f5f5;color:#333}.comment-send-btn{padding:6px 20px;background:#f0f0f0;color:#999;border:none;border-radius:4px;font-size:14px;cursor:pointer;transition:all .2s}.comment-send-btn:not(:disabled){background:#07c160;color:#fff}.comment-send-btn:hover:not(:disabled){background:#06ad56}.comment-send-btn:disabled{cursor:not-allowed}.comment-emoji-container{position:relative}.comment-emoji-picker{position:absolute;bottom:calc(100% + 8px);right:0;background:#fff;border-radius:12px;box-shadow:0 4px 24px #00000026;padding:12px;display:grid;grid-template-columns:repeat(6,1fr);gap:4px;width:240px;max-height:180px;overflow-y:auto;z-index:200}.comment-emoji-item{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:none;border:none;cursor:pointer;font-size:18px;border-radius:6px;transition:background .2s}.comment-emoji-item:hover{background:#f0f0f0}.comment-image-preview{position:relative;display:inline-block;margin:8px 16px}.comment-image-preview img{max-width:120px;max-height:120px;border-radius:8px;object-fit:cover}.remove-comment-image{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;background:#0009;color:#fff;border:none;font-size:12px;cursor:pointer;display:flex;align-items:center;justify-content:center}.remove-comment-image:hover{background:#000c}.comment-uploading{padding:8px 16px;font-size:13px;color:#999}.comment-image{display:block;max-width:100px;max-height:100px;border-radius:4px;margin-top:4px;cursor:pointer;transition:opacity .2s}.comment-image:hover{opacity:.9}@media(max-width:640px){.card-image{max-width:100%}.card-footer{flex-direction:column;align-items:flex-start}.footer-right{width:100%;justify-content:space-between}.action-bar{right:0;top:100%;margin-top:8px;margin-right:0;transform:none}}.modal-overlay{position:fixed;inset:0;background:var(--overlay-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:200;animation:fadeIn .2s ease forwards}.create-modal{background:var(--bg-glass);backdrop-filter:blur(var(--blur-amount));-webkit-backdrop-filter:blur(var(--blur-amount));border:1px solid var(--border-color);border-radius:var(--border-radius-xl);width:100%;max-width:440px;overflow:hidden;box-shadow:var(--shadow-glass),0 0 0 1px #ffffff1a inset;animation:scaleIn .3s ease forwards}.content-area{padding:24px 24px 16px}.main-textarea{width:100%;min-height:100px;border:none;font-size:16px;line-height:1.7;resize:none;outline:none;font-family:inherit;color:var(--text-primary);background:transparent;transition:all var(--transition-fast)}.main-textarea::placeholder{color:var(--text-tertiary)}.emoji-container{position:relative}.emoji-button{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:none;border:none;cursor:pointer;color:var(--text-tertiary);margin:8px 0;border-radius:var(--border-radius-md);transition:all var(--transition-fast)}.emoji-button:hover{color:var(--accent-color);background:var(--bg-tertiary);transform:scale(1.1)}.emoji-picker{position:absolute;top:100%;left:50%;transform:translate(-50%);background:var(--bg-glass);backdrop-filter:blur(var(--blur-amount));-webkit-backdrop-filter:blur(var(--blur-amount));border:1px solid var(--border-color);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-glass);padding:16px;display:grid;grid-template-columns:repeat(8,1fr);gap:4px;width:360px;max-height:280px;overflow-y:auto;z-index:300;animation:fadeInUp .2s ease forwards}.emoji-item{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:none;border:none;cursor:pointer;font-size:22px;border-radius:var(--border-radius-sm);transition:all var(--transition-fast)}.emoji-item:hover{background:var(--accent-color);transform:scale(1.2)}.image-grid{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.image-item{position:relative;width:100px;height:100px;border-radius:var(--border-radius-md);overflow:hidden;box-shadow:0 4px 12px var(--shadow-color);transition:transform var(--transition-fast)}.image-item:hover{transform:scale(1.05)}.image-item img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-fast)}.image-item:hover img{transform:scale(1.1)}.remove-btn{position:absolute;top:6px;right:6px;width:24px;height:24px;border-radius:50%;background:#0009;color:#fff;border:none;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);opacity:0}.image-item:hover .remove-btn{opacity:1}.remove-btn:hover{background:var(--danger-color);transform:scale(1.1)}.uploading-overlay{position:absolute;inset:0;background:#ffffffe6;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--text-secondary)}.add-image-btn{width:100px;height:100px;border:2px dashed var(--border-color);border-radius:var(--border-radius-md);background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);transition:all var(--transition-fast)}.add-image-btn:hover:not(:disabled){border-color:var(--accent-color);color:var(--accent-color);background:#667eea1a;transform:scale(1.05)}.add-image-btn:disabled{opacity:.4;cursor:not-allowed}.options-list{border-top:1px solid var(--border-light)}.option-row{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border-light);cursor:pointer;transition:all var(--transition-fast)}.option-row:hover{background:var(--bg-tertiary)}.option-row:last-child{border-bottom:none}.option-left{display:flex;align-items:center;gap:12px;color:var(--text-primary)}.option-left svg{color:var(--text-secondary);transition:color var(--transition-fast)}.option-row:hover .option-left svg{color:var(--accent-color)}.option-right{display:flex;align-items:center;gap:8px;color:var(--text-tertiary)}.placeholder-text{color:var(--text-tertiary)}.location-text{color:var(--accent-color);max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.location-section{padding:0}.location-header{border-bottom:none!important;padding-bottom:8px!important}.location-header:hover{background:transparent!important;cursor:default}.location-actions{display:flex;gap:8px}.location-auto-btn{background:var(--bg-tertiary);border:none;padding:8px 14px;border-radius:var(--border-radius-sm);font-size:13px;color:var(--accent-color);cursor:pointer;transition:all var(--transition-fast)}.location-auto-btn:hover:not(:disabled){background:var(--accent-color);color:#fff}.location-auto-btn:disabled{color:var(--text-tertiary);cursor:not-allowed}.location-input-row{display:flex;align-items:center;padding:0 24px 16px;gap:8px}.location-input{flex:1;border:1px solid var(--border-color);border-radius:var(--border-radius-sm);padding:12px 14px;font-size:14px;outline:none;background:var(--bg-tertiary);color:var(--text-primary);transition:all var(--transition-fast)}.location-input:focus{border-color:var(--accent-color);box-shadow:0 0 0 3px #667eea26}.location-input::placeholder{color:var(--text-tertiary)}.location-clear-btn{width:32px;height:32px;border-radius:50%;border:none;background:var(--bg-tertiary);color:var(--text-secondary);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.location-clear-btn:hover{background:var(--danger-color);color:#fff}.value-text{color:var(--text-secondary)}.loading-text{color:var(--text-tertiary);font-size:14px}.action-buttons{display:flex;gap:12px;padding:20px 24px;border-top:1px solid var(--border-light)}.cancel-btn,.post-btn{flex:1;padding:14px 24px;border-radius:var(--border-radius-md);font-size:15px;font-weight:600;cursor:pointer;transition:all var(--transition-fast);border:none}.cancel-btn{background:var(--bg-tertiary);color:var(--text-primary)}.cancel-btn:hover{background:var(--border-color);transform:translateY(-1px)}.post-btn{background:var(--accent-gradient);color:#fff;box-shadow:0 4px 15px #667eea66}.post-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #667eea80}.post-btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}@media(max-width:640px){.modal-overlay{padding:0;align-items:flex-end}.create-modal{border-radius:var(--border-radius-xl) var(--border-radius-xl) 0 0;max-height:90vh}}.profile-modal{background:#fff;border-radius:16px;width:100%;max-width:400px;overflow:hidden}.profile-modal .modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #f0f0f0}.profile-modal .modal-header h2{margin:0;font-size:18px;font-weight:600;color:#333}.profile-modal .close-button{background:none;border:none;font-size:14px;color:#666;cursor:pointer;padding:4px 8px}.profile-modal .close-button:hover{color:#333}.profile-modal .save-button{background:none;border:none;font-size:14px;color:#07c160;font-weight:600;cursor:pointer;padding:4px 8px}.profile-modal .save-button:hover:not(:disabled){color:#06ad56}.profile-modal .save-button:disabled{color:#ccc;cursor:not-allowed}.cover-preview{position:relative;height:140px;background-size:cover;background-position:center;cursor:pointer}.cover-edit-overlay{position:absolute;inset:0;background:#0000004d;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;opacity:0;transition:opacity .2s}.cover-preview:hover .cover-edit-overlay{opacity:1}.cover-edit-overlay span{margin-top:8px;font-size:14px}.uploading-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#000000b3;color:#fff;padding:8px 16px;border-radius:4px;font-size:14px}.settings-list{padding:0}.setting-row{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #f0f0f0;cursor:pointer}.setting-row:hover{background:#fafafa}.setting-label{font-size:15px;color:#333}.setting-value{display:flex;align-items:center;gap:8px;color:#999}.avatar-preview-small{position:relative;width:50px;height:50px;border-radius:8px;overflow:hidden}.avatar-preview-small img{width:100%;height:100%;object-fit:cover}.avatar-placeholder-small{width:100%;height:100%;background:#e0e0e0;display:flex;align-items:center;justify-content:center;color:#999}.mini-loading{position:absolute;inset:0;background:#fffc;display:flex;align-items:center;justify-content:center;font-size:12px}.nickname-input{border:none;background:none;font-size:15px;color:#333;text-align:right;outline:none;width:150px}.nickname-input::placeholder{color:#ccc}.avatar-modal{background:#fff;border-radius:16px;width:100%;max-width:400px;overflow:hidden}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #f0f0f0}.modal-header h2{margin:0;font-size:18px;font-weight:600;color:#333}.modal-header .close-button{background:none;border:none;font-size:14px;color:#666;cursor:pointer;padding:4px 8px}.modal-header .close-button:hover{color:#333}.modal-header .save-button{background:none;border:none;font-size:14px;color:#667eea;font-weight:600;cursor:pointer;padding:4px 8px}.modal-header .save-button:hover:not(:disabled){color:#5a6dd8}.modal-header .save-button:disabled{color:#ccc;cursor:not-allowed}.avatar-preview-container{position:relative;display:flex;justify-content:center;padding:32px;background:#f9f9f9}.avatar-preview{width:120px;height:120px;border-radius:12px;object-fit:cover}.avatar-placeholder{width:120px;height:120px;border-radius:12px;background:#e0e0e0;display:flex;align-items:center;justify-content:center;color:#999}.avatar-tabs{display:flex;border-bottom:1px solid #f0f0f0}.tab{flex:1;padding:14px;background:none;border:none;font-size:14px;color:#666;cursor:pointer;transition:all .2s}.tab.active{color:#667eea;border-bottom:2px solid #667eea;margin-bottom:-1px}.tab:hover:not(.active){background:#f9f9f9}.upload-section{padding:24px;text-align:center}.upload-btn{padding:12px 32px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.upload-btn:hover:not(:disabled){opacity:.9}.upload-btn:disabled{opacity:.5;cursor:not-allowed}.url-section{padding:24px;display:flex;gap:12px}.url-section input{flex:1;padding:12px 16px;border:2px solid #e0e0e0;border-radius:8px;font-size:14px;outline:none}.url-section input:focus{border-color:#667eea}.url-section button{padding:12px 20px;background:#f5f5f5;border:none;border-radius:8px;font-size:14px;cursor:pointer;color:#667eea;font-weight:600}.url-section button:hover{background:#eee}.upload-overlay{position:absolute;inset:0;background:#fffc;display:flex;align-items:center;justify-content:center;font-size:14px;color:#666}.cover-editor-overlay{position:fixed;inset:0;background:#000000f2;z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px}.cover-editor{width:100%;max-width:800px;background:#1a1a1a;border-radius:12px;overflow:hidden;display:flex;flex-direction:column}.editor-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:#222;border-bottom:1px solid #333}.editor-header h3{margin:0;font-size:16px;font-weight:500;color:#fff}.header-btn{background:none;border:none;font-size:14px;cursor:pointer;padding:6px 12px;border-radius:6px;transition:all .2s}.header-btn.cancel{color:#999}.header-btn.cancel:hover:not(:disabled){color:#fff;background:#ffffff1a}.header-btn.save{color:#07c160;font-weight:600}.header-btn.save:hover:not(:disabled){background:#07c1601a}.header-btn:disabled{opacity:.5;cursor:not-allowed}.editor-body{padding:24px;background:#111;display:flex;flex-direction:column;align-items:center;gap:12px}.crop-area{position:relative;width:100%;aspect-ratio:1200 / 280;overflow:hidden;cursor:grab;background:#000;border:2px solid rgba(255,255,255,.3);border-radius:4px}.crop-area:active{cursor:grabbing}.crop-label{font-size:12px;color:#ffffff80}.scale-control{display:flex;align-items:center;justify-content:center;gap:16px;padding:16px 20px;background:#1a1a1a}.scale-control button{width:36px;height:36px;border-radius:50%;border:none;background:#ffffff1a;color:#fff;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.scale-control button:hover{background:#fff3}.scale-control input[type=range]{width:200px;height:6px;-webkit-appearance:none;appearance:none;background:#fff3;border-radius:3px;outline:none}.scale-control input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:#fff;cursor:pointer;box-shadow:0 2px 6px #0000004d}.scale-control input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#fff;cursor:pointer;border:none;box-shadow:0 2px 6px #0000004d}.scale-value{color:#fff9;font-size:13px;min-width:50px;text-align:center}.editor-tip{padding:12px;text-align:center;font-size:13px;color:#fff6;background:#222}@media(max-width:640px){.cover-editor-overlay{padding:0}.cover-editor{max-width:100%;height:100%;border-radius:0}.editor-body{flex:1;padding:16px}.scale-control input[type=range]{width:120px}}.delete-dialog-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .15s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.delete-dialog{background:#f7f7f7;border-radius:14px;width:270px;overflow:hidden;box-shadow:0 10px 40px #0003;animation:slideUp .2s ease-out}@keyframes slideUp{0%{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}.delete-dialog-content{padding:20px 16px;text-align:center}.delete-dialog-content p{margin:0;font-size:17px;color:#000;font-weight:500}.delete-dialog-actions{display:flex;border-top:1px solid #d9d9d9}.dialog-btn{flex:1;padding:12px 0;border:none;background:transparent;font-size:17px;cursor:pointer;transition:background .15s}.dialog-btn:first-child{border-right:1px solid #d9d9d9}.dialog-btn.cancel{color:#000;font-weight:400}.dialog-btn.delete{color:#ff3b30;font-weight:400}.dialog-btn:active{background:#0000001a}.home-container{min-height:100vh;background:var(--bg-primary)}.cover-section{position:relative;height:280px;background-size:cover;background-position:center center;background-repeat:no-repeat;background-color:#667eea;transition:height .3s ease-out;cursor:pointer}.cover-section.expanded{height:350px}.cover-actions{position:absolute;top:16px;right:16px;display:flex;gap:12px;z-index:10}.cover-action-btn{width:40px;height:40px;border-radius:50%;background:#0000004d;border:none;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.cover-action-btn:hover{background:#00000080}.change-cover-btn{position:absolute;bottom:60px;right:16px;display:flex;align-items:center;gap:6px;padding:10px 14px;background:#00000080;color:#fff;border:none;border-radius:6px;font-size:13px;cursor:pointer;transition:all .2s;animation:fadeIn .2s ease-out;z-index:20}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.change-cover-btn:hover{background:#000000b3}.cover-collapse-overlay{position:fixed;inset:0;z-index:5}.profile-info{position:absolute;bottom:-30px;right:20px;display:flex;align-items:flex-end;gap:12px;cursor:pointer;z-index:10}.nickname{color:#fff;font-size:18px;font-weight:600;text-shadow:0 1px 4px rgba(0,0,0,.3);margin-bottom:24px}.profile-avatar{width:70px;height:70px;border-radius:10px;overflow:hidden;background:#fff;box-shadow:0 4px 12px #00000026;border:3px solid white}.profile-avatar img{width:100%;height:100%;object-fit:cover}.profile-avatar .avatar-placeholder{width:100%;height:100%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;color:#fff}.whats-up{position:absolute;bottom:-55px;right:20px;max-width:200px;font-size:13px;color:#888;text-align:right;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.main-content{padding:50px 16px 24px;transition:padding-top .3s ease-out}.main-content.shifted{padding-top:170px}.diary-feed{display:flex;flex-direction:column;gap:16px;max-width:600px;margin:0 auto}.empty-state{text-align:center;padding:60px 24px;color:#888}.empty-icon{font-size:64px;margin-bottom:16px}.empty-state h2{margin:0 0 8px;color:#666;font-weight:500}.empty-state p{margin:0;font-size:14px}.loading-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#f5f5f5;color:#666}.loading-spinner{width:40px;height:40px;border:3px solid #e0e0e0;border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:640px){.cover-section{height:220px}.cover-section.expanded{height:320px}.profile-avatar{width:60px;height:60px}.nickname{font-size:16px}.main-content{padding:40px 12px 20px}.main-content.shifted{padding-top:140px}}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--accent-gradient);padding:20px;position:relative;overflow:hidden}.login-container:before,.login-container:after{content:"";position:absolute;width:400px;height:400px;border-radius:50%;filter:blur(80px);opacity:.5;animation:float 8s infinite ease-in-out}.login-container:before{background:#ffffff4d;top:-100px;left:-100px}.login-container:after{background:#fff3;bottom:-100px;right:-100px;animation-delay:-4s}@keyframes float{0%,to{transform:translate(0) scale(1)}50%{transform:translate(30px,30px) scale(1.1)}}.login-card{background:var(--bg-glass);backdrop-filter:blur(var(--blur-amount));-webkit-backdrop-filter:blur(var(--blur-amount));border:1px solid rgba(255,255,255,.3);border-radius:var(--border-radius-xl);padding:48px 40px;width:100%;max-width:420px;box-shadow:var(--shadow-glass),0 0 0 1px #ffffff1a inset;animation:scaleIn .4s ease forwards;position:relative;z-index:1}.login-header{text-align:center;margin-bottom:36px}.login-icon{font-size:56px;margin-bottom:16px;animation:fadeInDown .5s ease .2s backwards}.login-header h1{font-size:28px;font-weight:700;color:var(--text-primary);margin:0 0 8px;animation:fadeInUp .5s ease .3s backwards}.login-header p{font-size:14px;color:var(--text-secondary);margin:0;animation:fadeInUp .5s ease .4s backwards}.login-form{display:flex;flex-direction:column;gap:24px}.form-group{display:flex;flex-direction:column;gap:8px;animation:fadeInUp .5s ease .5s backwards}.form-group label{font-size:14px;font-weight:600;color:var(--text-primary)}.form-group input{padding:16px 18px;border:2px solid var(--border-color);border-radius:var(--border-radius-md);font-size:16px;transition:all var(--transition-fast);outline:none;background:var(--bg-tertiary);color:var(--text-primary)}.form-group input:focus{border-color:var(--accent-color);box-shadow:0 0 0 4px #667eea26;background:var(--bg-secondary)}.form-group input::placeholder{color:var(--text-tertiary)}.error-message{background:#ef44441a;color:var(--danger-color);padding:14px 18px;border-radius:var(--border-radius-md);font-size:14px;text-align:center;border:1px solid rgba(239,68,68,.2);animation:fadeIn .3s ease forwards}.login-button{background:var(--accent-gradient);color:#fff;border:none;padding:18px;border-radius:var(--border-radius-md);font-size:16px;font-weight:600;cursor:pointer;transition:all var(--transition-fast);box-shadow:0 4px 20px #667eea66;animation:fadeInUp .5s ease .6s backwards}.login-button:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 8px 30px #667eea80}.login-button:active:not(:disabled){transform:translateY(-1px)}.login-button:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}@media(max-width:480px){.login-card{padding:36px 24px;border-radius:var(--border-radius-lg)}}