:root{font-family:"Segoe UI","Microsoft YaHei",sans-serif;font-size:12px;color:#172a3e;color-scheme:light;--tile:34px;--covered-top:#c2e2fb;--covered-mid:#74afe1;--covered-bottom:#438ac6;--tile-border:#40729d;--revealed:#dce8f1;--grid-line:#91aabc}
*{box-sizing:border-box}body{margin:0;min-height:100vh;min-height:100dvh;overflow-x:hidden;background:#067ec3}button,input,select{font:inherit}button{cursor:default;color:inherit}button:disabled{opacity:.5}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #147ec2;outline-offset:2px}button{touch-action:manipulation}button svg{pointer-events:none}button:active{transform:none}[hidden]{display:none!important}.svg-library{position:absolute;width:0;height:0;overflow:hidden}.desktop-art{position:fixed;inset:0;overflow:hidden;z-index:-1;background:radial-gradient(ellipse at 70% 90%,#6bd3bd80,transparent 39%),radial-gradient(ellipse at 24% 80%,#2baee7b3,transparent 55%),radial-gradient(ellipse at 45% 28%,#42c6f680,transparent 45%),linear-gradient(127deg,#073e93 0%,#057fcb 42%,#1ca7da 70%,#1d80b3 100%)}.desktop-bloom{position:absolute;width:90vw;height:60vh;left:38%;top:51%;border-radius:50%;background:radial-gradient(ellipse,#d9f7d764 0%,#beeabb22 30%,transparent 65%);filter:blur(30px)}.desktop-arc{position:absolute;width:170vw;height:140vh;border-radius:50%;border:1px solid #c5f1fa65;box-shadow:0 -10px 45px #a5ecff1a,inset 0 5px 18px #dcf6ff15;transform:rotate(-24deg)}.arc-one{left:-47%;top:46%}.arc-two{left:-39%;top:55%;border-color:#b8e8d442}.light-ray{position:absolute;display:block;left:20%;top:-30%;height:155vh;width:5vw;transform:rotate(-31deg);background:linear-gradient(90deg,transparent,#d9f8ff0c,transparent)}.ray-two{left:31%;width:10vw}.ray-three{left:65%;width:2vw;background:#c6f5ff0b}.desktop{min-height:calc(100vh - 46px);min-height:calc(100dvh - 46px);padding:48px 20px 70px;display:flex;justify-content:center;align-items:center;flex-direction:column;gap:25px}.desktop-shortcut{position:absolute;left:23px;top:25px;width:76px;border:1px solid transparent;background:transparent;display:grid;justify-items:center;gap:7px;padding:7px;color:#fff;text-shadow:1px 1px 3px #123f6c;border-radius:3px}.desktop-shortcut svg{width:40px;height:40px;filter:drop-shadow(1px 3px 3px #0c3d6c88)}.desktop-shortcut:hover{border-color:#fff5;background:#cee9ff26}.game-window{position:relative;border:1px solid #163b64;border-radius:8px 8px 5px 5px;padding:0 7px 7px;background:linear-gradient(125deg,#d1ecf9ad,#80badea6 32%,#b8dff1ad 50%,#6bafdb9c);box-shadow:inset 0 0 0 1px #ffffffb3,0 12px 38px #002a5499,0 1px 5px #112d50b3;backdrop-filter:blur(16px);max-width:calc(100vw - 36px);transition:box-shadow .2s}.titlebar{height:32px;display:flex;align-items:center;justify-content:space-between;user-select:none;touch-action:none}.window-title{display:flex;align-items:center;gap:6px;padding-left:2px;white-space:nowrap}.window-title svg{width:18px;height:18px}.window-title h1{font-size:13px;margin:0;font-weight:400;color:#0a2138;text-shadow:0 0 6px white,0 0 9px white}.window-controls{display:flex;align-self:flex-start;margin-right:-1px;box-shadow:0 0 0 1px #24507888;border-radius:0 0 4px 4px;overflow:hidden}.window-controls button{height:20px;width:28px;padding:0;border:0;border-left:1px solid #ffffff70;border-right:1px solid #234e7590;background:linear-gradient(#e4f4ff8c 0%,#bfd8eb60 44%,#8eafc955 45%,#c5dfed7a 100%);display:grid;place-content:center;color:#fff;text-shadow:0 0 2px #163a5b}.window-controls button:hover{background:linear-gradient(#96d8ff,#198cd9);box-shadow:0 0 9px #7acbff}.window-controls .window-close{width:46px;font-size:22px;line-height:18px;background:linear-gradient(#f0c2b9 0%,#d28574 42%,#b64b34 43%,#d3917f 100%);border-right:0}.window-controls .window-close:hover{background:linear-gradient(#f5b2a4,#ca2507);box-shadow:0 0 10px #ff8b64}.min-icon{display:block;width:9px;height:3px;background:#fff;box-shadow:0 0 1px #153854;margin-top:7px}.max-icon{display:block;width:10px;height:9px;border:1.5px solid #fff;border-top-width:3px;filter:drop-shadow(0 0 1px #173c59)}.window-interior{border:1px solid #4e7999;box-shadow:0 0 0 1px #ffffff70;background:#dceaf3;min-width:322px}.menubar{height:27px;display:flex;align-items:center;padding:1px 4px;position:relative;z-index:5;background:linear-gradient(#fff,#e6eff8 45%,#dbe6f3 48%,#f0f4f8);border-bottom:1px solid #94b2cc}.menu-wrap{position:relative}.menu-trigger{border:1px solid transparent;background:none;padding:3px 8px;border-radius:3px;font-size:12px}.menu-trigger:hover,.menu-trigger[aria-expanded=true]{border-color:#91b9dd;background:linear-gradient(#f0f8fd,#d3e8f6)}.menu-trigger u{text-decoration:none}.difficulty-label{margin-left:auto;color:#60819d;padding-right:7px;font-size:11px}.dropdown{position:absolute;top:24px;left:0;width:215px;border:1px solid #7e97ac;padding:3px;background:#f6f7f8;box-shadow:3px 4px 8px #1233;z-index:10}.dropdown:before{content:"";position:absolute;left:26px;top:3px;bottom:3px;width:1px;background:#d5dce2;box-shadow:1px 0 #fff}.dropdown button{position:relative;display:flex;justify-content:space-between;align-items:center;width:100%;border:1px solid transparent;background:transparent;padding:6px 10px 6px 32px;text-align:left}.dropdown button:hover,.dropdown button:focus-visible{border-color:#abd0e8;background:linear-gradient(#eaf6fe,#cde9fa);border-radius:3px;outline:0}.dropdown kbd{font-family:inherit;color:#50677b;font-size:11px}.dropdown hr{border:0;border-top:1px solid #d0d8df;margin:3px 1px 3px 28px}.play-area{padding:18px 18px 0;position:relative;overflow:hidden;background:radial-gradient(ellipse at 80% 90%,#a2d0d75c,transparent 70%),linear-gradient(145deg,#7aafcc 0%,#598caf 32%,#81adbe 74%,#5996b9 100%)}.play-area:before{content:"";position:absolute;width:100%;height:130%;left:-45%;top:-24%;transform:rotate(28deg);background:linear-gradient(90deg,transparent,#e2f9ff13,transparent);pointer-events:none}.board-scroller{position:relative;overflow:auto;max-width:calc(100vw - 90px);scrollbar-width:thin;scrollbar-color:#a6d4ee #457fa1}.board-shell{padding:2px;background:#d8edf9;border:1px solid #355d7b;box-shadow:0 0 0 1px #dbf2fd77,0 2px 6px #16435d55;position:relative;width:max-content;margin:auto}.board{display:grid;grid-template-columns:repeat(var(--cols,9),var(--tile));width:max-content;border-left:1px solid var(--grid-line);border-top:1px solid var(--grid-line);user-select:none;touch-action:manipulation;background:var(--revealed)}.cell{height:var(--tile);width:var(--tile);padding:0;border:0;border-right:1px solid var(--tile-border);border-bottom:1px solid var(--tile-border);border-radius:0;background:linear-gradient(135deg,#e3f5ff80,transparent 48%),linear-gradient(var(--covered-top) 0%,#8bbde8 44%,var(--covered-mid) 45%,var(--covered-bottom) 100%);box-shadow:inset 1px 1px 0 #e1f2ff,inset -1px -1px 0 #417cb2,inset 2px 2px 0 #b4daf8aa,inset -2px -2px 0 #5d9acc90;position:relative;display:grid;place-items:center;color:#142332;font-family:Arial,"Microsoft 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#35556b55);pointer-events:none}.cell.question{font-weight:600;color:#223b5a;text-shadow:0 1px 1px white}.cell.exploded{background:radial-gradient(#ffdc73,#f88856 55%,#ec5544);box-shadow:inset 0 0 7px #b73c21}.cell.wrong:after{content:"×";position:absolute;color:#e72121;font-size:calc(var(--tile)*1.05);text-shadow:0 0 2px #fff}.cell.mine-shown{background:#c7dae6;border-color:var(--grid-line);box-shadow:none}.game-status{height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 2px;position:relative}.counter{display:flex;align-items:center;gap:8px;color:#fff;font-size:27px;line-height:1;font-weight:400;text-shadow:0 1px 3px #224d6c,0 0 4px #346785;font-family:"Segoe UI",sans-serif;min-width:79px;font-variant-numeric:tabular-nums}.counter svg{width:31px;height:31px;filter:drop-shadow(1px 2px 1px #244b6b88)}.mines-counter{justify-content:flex-end}.restart{border:1px solid 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button[aria-pressed=true]{background:linear-gradient(#daf3ff,#95c9ef);border-color:#226eaa}.pause-overlay{position:absolute;inset:2px;background:#4a7e9ff5;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;color:#fff;font-size:14px;z-index:2}.pause-symbol{font-size:40px;color:#e5f3ff}.pause-overlay .aero-button{min-width:95px}.game-window.maximized{--tile:clamp(24px,4.5vh,40px)}.game-window.maximized .play-area{padding-top:24px}.restore-hint{text-align:center;color:white;text-shadow:0 1px 3px #184568}.restore-hint svg{height:68px;width:68px;filter:drop-shadow(0 4px 6px #14374d99)}.restore-hint p{font-size:16px}.taskbar{position:fixed;bottom:0;left:0;right:0;height:43px;border-top:1px solid #d7efff8c;box-shadow:0 -1px 0 #16507d88,0 -3px 15px #154c7040;background:linear-gradient(90deg,#6bafdc8c,#153f6fb3 35%,#80bce263);backdrop-filter:blur(18px);display:flex;align-items:center;z-index:8}.start-orb{width:44px;height:44px;border:1px solid #9bdbfca6;margin:-3px 12px 0 10px;border-radius:50%;background:radial-gradient(ellipse at 50% 20%,#bfdcebb3,transparent 60%),radial-gradient(ellipse at 50% 80%,#26c8ec80,transparent 55%),linear-gradient(#1b416e,#0b2849);box-shadow:inset 0 0 3px #061d34,0 0 3px #071e32,0 0 6px #73d8fa70;display:grid;place-content:center}.start-orb:hover{box-shadow:0 0 14px #66e6ff,inset 0 0 7px #86ecff}.orb-panes{display:grid;grid-template-columns:11px 11px;grid-template-rows:10px 10px;gap:2px;transform:rotate(-8deg) skewY(5deg);filter:drop-shadow(0 1px 1px #062b4f)}.orb-panes i:nth-child(1){background:linear-gradient(#ffb65c,#df541f)}.orb-panes i:nth-child(2){background:linear-gradient(#b3df5d,#62a72b)}.orb-panes i:nth-child(3){background:linear-gradient(#65cce7,#258dca)}.orb-panes i:nth-child(4){background:linear-gradient(#ffe977,#efad24)}.task-button{height:38px;min-width:151px;margin-top:1px;border:1px solid #143b64;border-radius:3px;background:linear-gradient(#c8e5f052,#96b9d163 45%,#5d96bd63 46%,#a9d9ed63);box-shadow:inset 0 0 0 1px #f2fcff70,0 0 1px #143f70;color:#fff;display:flex;align-items:center;gap:11px;padding:0 13px;text-shadow:0 1px 2px #164574}.task-button svg{width:26px;height:26px}.task-button:hover{background:radial-gradient(ellipse at 50% 95%,#7be2ff,#9bc5e28c)}.task-button:not(.active){background:#6fa3c52b;box-shadow:inset 0 0 0 1px #f2fcff3a}.taskbar-right{margin-left:auto;display:flex;align-items:center;height:100%;gap:23px;color:white}.local-badge{font-size:11px;color:#e0f6ffb3;text-shadow:0 1px 2px #1b5282}.system-clock{display:grid;gap:2px;min-width:76px;text-align:center;font-size:11px;text-shadow:0 1px 2px #24517a}.show-desktop{height:100%;width:15px;border:1px solid #c9e8fa80;border-top:0;border-bottom:0;background:linear-gradient(130deg,#d5f1fc30,#a1c9eb10);margin-left:-15px}.show-desktop:hover{background:#d6f6ff55}.aero-dialog{border:1px solid #345b7b;border-radius:7px;padding:6px;background:linear-gradient(120deg,#c8e7f4ef,#8dbbdaf5);box-shadow:inset 0 0 0 1px #ffffffb0,0 15px 65px #052e6588;color:#243c51;width:390px;max-width:calc(100vw - 26px);max-height:calc(100dvh - 36px);overflow:auto;font-size:12px}.aero-dialog::backdrop{background:#092d5129;backdrop-filter:blur(1px)}.dialog-titlebar{height:27px;display:flex;align-items:flex-start;justify-content:space-between;padding-left:4px}.dialog-titlebar h2{margin:1px 0 0;font-size:12px;font-weight:400;text-shadow:0 0 7px white}.dialog-x{height:19px;width:39px;margin:-6px 0 0;border:1px solid #89574c;border-top:0;border-radius:0 0 3px 3px;background:linear-gradient(#efbbb0,#c96c57 48%,#a94731 50%,#d18d78);color:white;font-size:19px;line-height:16px;text-shadow:0 0 2px #5d2616}.dialog-x:hover{background:linear-gradient(#f8b7a3,#d3320d);box-shadow:0 0 8px #ed8263}.dialog-body{border:1px solid #8aa6bc;border-bottom:0;background:#f3f7fa;padding:19px 20px;line-height:1.7}.dialog-body p{margin:0 0 12px}.dialog-actions{display:flex;justify-content:flex-end;gap:9px;padding:12px 14px;background:#e6eef4;border:1px solid #8aa6bc;border-top:1px solid #c5d4df}.aero-button{min-height:27px;min-width:69px;border:1px solid #7e929f;border-radius:3px;padding:4px 13px;background:linear-gradient(#fff,#edf2f6 46%,#dfe7ed 48%,#e9f0f4);box-shadow:inset 0 0 0 1px #fff;color:#243b50;white-space:nowrap}.aero-button:hover{border-color:#3c96ca;background:linear-gradient(#f8fdff,#d8eefb 48%,#bfe3f8 49%,#d7f0ff)}.aero-button:active{background:linear-gradient(#bedef3,#e3f3ff)}.aero-button.primary{border-color:#458abb;box-shadow:inset 0 0 0 1px #a5dafa,inset 0 0 3px #8ed0f5}.difficulty-options,.appearance-options{margin:0 0 15px;border:1px solid #c1ced8;padding:10px 12px 12px;border-radius:2px}.dialog-body legend{padding:0 5px;color:#304c64}.difficulty-options>label{display:flex;align-items:flex-start;gap:7px;padding:5px 0}.difficulty-options input[type=radio]{margin-top:5px;accent-color:#2a82bd}.difficulty-options strong{font-weight:400;display:block}.difficulty-options small{display:block;font-size:11px;color:#6b8091}.custom-fields{display:flex;gap:10px;padding-top:9px}.custom-fields label{display:flex;flex-direction:column;gap:3px;flex:1;min-width:0}.custom-fields input{width:100%;height:26px;min-width:0;padding:3px 5px;border:1px solid #aabcc9;background:white;border-radius:1px}.custom-fields input:disabled{background:#edf1f4;color:#899ba8}.dialog-body .field-hint{font-size:11px;color:#718394;margin:8px 0 0;line-height:1.6}.appearance-options{display:grid;gap:10px;margin-bottom:0}.appearance-options label{display:flex;align-items:center;gap:7px}.appearance-options input{accent-color:#277fb8}.appearance-options select{margin-left:auto;padding:3px;border:1px solid #a1b4c3;background:#fff}.form-error{color:#b72626;font-size:11px;margin:8px 0 0!important}.form-error:empty{display:none}.stats-tabs{display:flex;border-bottom:1px solid #93b5ce;margin-top:0}.stats-tabs button{flex:1;border:1px solid #bbcbd8;border-bottom:0;border-radius:3px 3px 0 0;background:linear-gradient(#fff,#e4ecf2);padding:6px}.stats-tabs button[aria-selected=true]{background:#fff;position:relative;top:1px;border-color:#8ab2d0;border-top:3px solid #73acd2;padding-top:4px}.stats-content{padding:16px;background:white;border:1px solid #b4c8d6;border-top:0}.stat-row{display:flex;justify-content:space-between;padding:5px 0;color:#657b8c}.stat-row strong{font-weight:600;color:#264961;font-variant-numeric:tabular-nums}.best-score{margin:0 0 14px;padding-bottom:15px;border-bottom:1px solid #e4ecf2;text-align:center}.best-score span{font-size:11px;color:#72889a;display:block}.best-score strong{font-size:32px;font-weight:300;color:#2274a6;line-height:1.6}.help-lead{font-size:14px;color:#245675}.help-example{display:flex;align-items:center;gap:15px;padding:10px 0 15px}.help-example p{font-size:11px;color:#657b8b;margin:0}.example-cell{width:34px;height:34px;display:grid;place-items:center;background:#dce8f1;border:1px solid #91aabc;font:700 24px Arial}.help-content dl{margin:0}.help-content dt{color:#254e6b;margin-top:12px;font-weight:600}.help-content dd{margin:2px 0 0;color:#65798b;font-size:11px}.help-content{max-height:65dvh;overflow:auto}.about-content{text-align:center;padding:25px}.about-content>svg{height:55px;width:55px}.about-content h3{font-size:23px;font-weight:400;margin:8px 0 3px}.about-content .about-detail{margin-top:20px;text-align:left;color:#607b91;font-size:11px}.about-content small{font-size:10px;color:#8499a8;display:block}.result-dialog .dialog-body{text-align:center}.result-icon{font-size:37px;line-height:1.2;margin-bottom:8px;color:#3a91b3}.result-icon svg{height:43px;width:43px}.result-dialog h3{font-size:22px;font-weight:400;color:#21618b;margin:8px 0}.result-dialog p{font-size:12px;color:#6c8294}.result-metrics{display:flex;justify-content:center;gap:50px;margin:22px 0 5px}.result-metrics span{display:block;font-size:11px;color:#8295a3}.result-metrics strong{font-size:22px;font-weight:400;color:#2e5b7b}.result-dialog .dialog-actions{justify-content:center}noscript{position:fixed;inset:40% 10%;color:white;text-align:center}body.theme-green{--covered-top:#ddedaa;--covered-mid:#9cbe63;--covered-bottom:#709b3d;--tile-border:#678244;--revealed:#ecf0d9;--grid-line:#a8b68a}body.theme-green .cell{background:linear-gradient(135deg,#f5ffcf80,transparent 48%),linear-gradient(var(--covered-top),#b1cf7e 44%,var(--covered-mid) 45%,var(--covered-bottom))}body.theme-green .cell.revealed{background:var(--revealed);box-shadow:inset 1px 1px #fff5}body.theme-green .cell.exploded{background:#f69161}body.theme-green .cell:not(.revealed):hover{filter:brightness(1.17)}
@media(pointer:coarse){.touch-controls{display:flex}.cell{touch-action:pan-x pan-y}.desktop-tip{font-size:10px}.desktop-shortcut{display:none}.local-badge{display:none}}
@media(max-width:600px){.desktop{padding:55px 9px 65px;gap:23px}.game-window{max-width:calc(100vw - 18px);padding:0 5px 5px}.window-interior{min-width:290px}.play-area{padding:13px 10px 0}.board-scroller{max-width:calc(100vw - 54px)}.titlebar{height:31px}.desktop-shortcut{display:none}.local-badge{display:none}.task-button{min-width:115px}.desktop-tip{font-size:10px}.game-status{height:61px}.window-status{font-size:10px}.system-clock{font-size:10px}.taskbar-right{gap:15px}.touch-controls{gap:8px}.touch-controls .aero-button{font-size:11px;padding:4px 8px}}
@media(max-height:650px) and (min-width:601px){.desktop{padding-top:28px;padding-bottom:65px}.game-window{--tile:28px}.play-area{padding-top:12px}.game-status{height:53px}.desktop-tip{margin-top:-10px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}