:root{color:#33443c;font-synthesis:none;--ink:#33443c;--muted:#8a9186;--accent:#dc7554;--line:#e9e9df;--region-0:#f4e8a8;--region-1:#f1c4a5;--region-2:#c5d8bd;--region-3:#d6cee8;--region-4:#c3dfe6;--region-5:#edc4d3;--region-6:#d3bea1;--region-7:#a9d2c9;background:#f7f6f0;font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit}button:disabled{cursor:default;opacity:.35}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline-offset:4px;outline:3px solid #547c68}svg{flex-shrink:0;width:24px;height:24px;display:block}.svg-definitions{width:0;height:0;position:absolute;overflow:hidden}.site-shell{max-width:1112px;margin:auto;padding:0 36px}.site-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:104px;display:flex}.brand{letter-spacing:-1px;align-items:center;gap:10px;font-family:Georgia,Times New Roman,serif;font-size:31px;font-weight:700;display:flex}.brand-period{color:var(--accent)}.brand-icon{background:var(--accent);color:#fff9ed;border-radius:13px;place-items:center;width:39px;height:39px;display:grid}.brand-icon svg{width:28px;height:28px}.save-status{color:#858d82;align-items:center;gap:7px;font-size:12px;display:flex}.save-status>span{background:#8fa78a;border-radius:50%;width:6px;height:6px}.save-status.is-error>span{background:var(--accent)}.intro{justify-content:space-between;align-items:center;padding:40px 0 31px;display:flex}.eyebrow{letter-spacing:2px;color:var(--accent);margin:0 0 13px;font-size:10px;font-weight:650}h1{letter-spacing:1px;margin:0;font-size:34px;font-weight:650;line-height:1.4}h1>span{color:var(--accent)}.intro-description{letter-spacing:.4px;color:#8a9084;margin:11px 0 0;font-size:14px}.difficulty{white-space:nowrap;color:#78816e;background:#eeeee3;border-radius:22px;align-items:center;gap:7px;padding:9px 14px;font-size:12px;display:flex}.difficulty>span{color:#9da67e;font-size:17px}.game-layout{grid-template-columns:minmax(0,1fr) 310px;align-items:start;gap:27px;display:grid}.play-panel{background:#fffefa;border:1px solid #e7e8dc;border-radius:22px;padding:25px 30px 0;box-shadow:0 6px 24px #344c3410}.level-heading{justify-content:space-between;align-items:center;margin-bottom:23px;display:flex}.level-number{letter-spacing:1.5px;color:#959a8b;font-size:10px}.level-heading h2{align-items:center;gap:13px;margin:7px 0 0;font-size:18px;font-weight:600;display:flex}.level-heading h2>span{letter-spacing:.5px;color:#8b9385;border:1px solid #e3e6da;border-radius:5px;padding:3px 6px;font-size:10px;font-weight:400}.timer{color:#8a9286;font-variant-numeric:tabular-nums;align-items:center;gap:7px;font-size:14px;display:flex}.timer svg{width:17px;height:17px}.board-wrapper{width:min(100%,454px);margin:0 auto;padding:0 0 0 18px;position:relative}.board{grid-template-columns:repeat(var(--board-size,4),minmax(0,1fr));aspect-ratio:1;touch-action:none;-webkit-user-select:none;user-select:none;isolation:isolate;background:#4b5948;border:3px solid #4b5948;border-radius:13px;display:grid;overflow:hidden}.cell{background:var(--cell-color);aspect-ratio:1;cursor:pointer;border:0;place-items:center;min-width:0;padding:0;transition:filter .15s;display:grid;position:relative;outline:0!important}.cell:after{content:"";border-right:var(--right-width,1px) solid var(--right-color,#5460442b);border-bottom:var(--bottom-width,1px) solid var(--bottom-color,#5460442b);pointer-events:none;z-index:3;position:absolute;inset:0}.cell:hover{filter:brightness(1.045)}.cell:focus-visible:before{content:"";z-index:4;pointer-events:none;border:2px solid #46624f;border-radius:6px;position:absolute;inset:5px}.cell .cat{color:#3c4b40;filter:drop-shadow(0 3px #33443c12);width:64%;height:64%;animation:.22s ease-out cat-arrive}.cell.is-conflict{background-image:repeating-linear-gradient(-45deg,#e47c651c,#e47c651c 5px,#0000 5px 11px)}.cell.is-conflict .cat{color:#a94c3f;animation:.25s ease-out cat-shake}.cell.is-hint:before{content:"";pointer-events:none;z-index:4;background:#fffbea44;border:2px dashed #66714b;border-radius:7px;position:absolute;inset:5px}.cell .mark{color:#4a5a48;opacity:.72;width:28%;height:28%}.cell .excluded-dot{opacity:.28;background:#536148;border-radius:50%;width:7px;height:7px}.row-labels{grid-template-rows:repeat(var(--board-size,4),1fr);place-items:center;width:12px;display:grid;position:absolute;top:0;bottom:23px;left:0}.row-labels span,.column-labels span{color:#a0a595;font-variant-numeric:tabular-nums;font-size:10px}.column-labels{grid-template-columns:repeat(var(--board-size,4),1fr);place-items:end center;height:23px;display:grid}.board-caption{color:#8d9488;align-items:center;gap:16px;width:min(100%,436px);margin:13px auto 21px;padding-left:4px;font-size:10px;display:flex}.board-caption>span{white-space:nowrap;align-items:center;gap:5px;display:flex}.legend-cross{color:#71816a;font-size:18px;font-style:normal;line-height:12px}.legend-dot{background:#91a086;border-radius:50%;width:5px;height:5px;margin:0 3px}.board-caption .cat-count{gap:7px;margin-left:auto}.cat-count strong{color:#68795f;font-size:12px;font-weight:600}.controls{border-top:1px solid #eeeee5;justify-content:space-between;align-items:center;gap:12px;padding-top:19px;display:flex}.tool-switch{background:#f1f2e9;border:1px solid #e9ebdf;border-radius:12px;gap:3px;padding:4px;display:flex}.tool{color:#929989;background:0 0;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:7px;min-width:113px;padding:9px 14px;font-size:13px;transition:background .15s,color .15s;display:flex}.tool svg{width:19px;height:19px}.tool.is-active{color:#40513d;background:#fffefa;border-color:#e0e3d5;box-shadow:0 2px 3px #33443c08}.tool kbd{color:#9ca38f;border:1px solid #dce0d3;border-radius:3px;margin-left:4px;padding:0 4px;font-family:inherit;font-size:9px;line-height:15px}.undo-button{color:#79866f;background:0 0;border:0;align-items:center;gap:6px;padding:8px;font-size:12px;display:flex}.undo-button svg{width:18px;height:18px}.feedback{color:#828d75;background:#f5f6ee;border-radius:8px;align-items:flex-start;gap:8px;min-height:39px;margin:15px 0 17px;padding:9px 10px;display:flex}.feedback-indicator{background:#a6b392;border-radius:50%;flex-shrink:0;width:5px;height:5px;margin-top:6px}.feedback p{margin:0;font-size:11px;line-height:1.7}.feedback.is-error{color:#b76b53;background:#fcf0e9}.feedback.is-error .feedback-indicator{background:#d38468}.feedback.is-hint{color:#968454;background:#f8f3df}.feedback.is-hint .feedback-indicator{background:#c4aa68}.feedback.is-success{color:#5e7d54;background:#eaf1e5}.secondary-actions{border-top:1px solid #eeeee5;justify-content:center;align-items:center;gap:28px;padding:17px 0 18px;display:flex}.secondary-actions button{color:#929985;background:0 0;border:0;align-items:center;gap:7px;padding:5px 0;font-size:11px;display:flex}.secondary-actions button:not(:disabled):hover{color:var(--accent)}.secondary-actions svg{width:16px;height:16px}.secondary-actions>span{background:#e3e6d9;width:1px;height:14px}.sidebar{flex-direction:column;gap:20px;display:flex}.rules-card{background:#f0f2e8;border:1px solid #e3e6d7;border-radius:19px;padding:25px 23px 10px}.card-eyebrow{letter-spacing:1px;color:#949e84;align-items:center;gap:6px;font-size:10px;display:flex}.little-line{background:#a8b396;width:16px;height:1px}.rules-card h2{letter-spacing:.4px;margin:13px 0 8px;font-size:19px;font-weight:600}.rules-intro{color:#8b947f;margin:0;font-size:11px}.rules-list{margin:0;padding:12px 0 0;list-style:none}.rules-list li{border-bottom:1px solid #e2e6d8;align-items:center;gap:12px;padding:17px 0;display:flex;position:relative}.rules-list li:last-child{border:0}.rules-list strong{color:#59684e;font-size:12px;font-weight:600}.rules-list p{color:#929b86;margin:5px 0 0;font-size:10px;line-height:1.5}.rule-illustration{background:#f8f9f2;border:1px solid #dee3d1;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;width:37px;height:37px;display:flex}.rule-illustration i{border:1px solid #bdc8ae;width:7px;height:8px;display:block}.rule-illustration i.filled{background:#8fa37b}.rule-illustration.horizontal{gap:2px}.rule-illustration.vertical{flex-direction:column;gap:1px}.rule-illustration.vertical i{width:8px;height:7px}.rule-illustration.colored{background:#efdfa3;border-color:#e7d79a}.rule-illustration.colored svg{color:#8a9066;width:22px;height:22px}.rule-illustration.apart svg{color:#8fa37b;width:17px;height:17px}.rule-illustration.apart i{background:#dbe2d0;border:0;border-radius:50%;width:4px;height:4px}.rule-result{color:#839e6d;flex-shrink:0;width:16px;margin-left:auto}.rule-result svg{width:16px;height:16px}.note-card{text-align:center;background:#f5eee3;border:1px solid #eee5d6;border-radius:19px;padding:15px 18px 0;overflow:hidden}.note-art{width:150px;height:98px;margin:auto;position:relative}.note-cat{color:#c39f76;width:72px;height:72px;position:absolute;top:17px;left:39px;transform:rotate(-8deg)}.spark{color:#c5ad80;position:absolute}.spark-one{font-size:26px;top:38px;left:9px}.spark-two{font-size:17px;top:45px;right:8px}.sleepy{color:#c2ac90;letter-spacing:4px;font:italic 16px Georgia,serif;position:absolute;top:10px;right:11px;transform:rotate(10deg)}.cat-shadow{opacity:.24;background:#d6bea0;border-radius:50%;width:68px;height:6px;position:absolute;bottom:2px;left:41px}.note-card h3{color:#8d7a61;letter-spacing:1px;margin:15px 0 12px;font-size:17px;font-weight:500}.note-card p{color:#a59881;margin:0 0 19px;font-size:11px;line-height:2.1}.note-footer{letter-spacing:1px;color:#b4a68f;border-top:1px dashed #e3d7c7;justify-content:center;align-items:center;gap:7px;padding:16px 0;font-size:9px;display:flex}.note-footer svg{width:12px;height:12px;transform:rotate(-16deg)}.keyboard-help{color:#a1a697;letter-spacing:.3px;text-align:center;max-width:703px;margin:18px 0 34px;font-size:10px}.site-footer{border-top:1px solid var(--line);color:#a4a998;letter-spacing:.6px;justify-content:space-between;align-items:center;padding:22px 0 26px;font-size:10px;display:flex}.site-footer>span:last-child{letter-spacing:1.2px;align-items:center;gap:9px;font-size:8px;display:flex}.site-footer svg{width:12px;height:12px;transform:rotate(15deg)}.win-dialog{text-align:center;width:min(410px,100% - 32px);color:var(--ink);background:#fffdf6;border:1px solid #e0e3d4;border-radius:25px;padding:32px;box-shadow:0 30px 120px #253d3238}.win-dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#2c3e364d}.win-art{justify-content:center;align-items:center;gap:25px;margin:5px 0 20px;display:flex}.win-art svg{color:#718967;width:83px;height:83px}.win-art span{color:#d5b267;font-size:28px}.win-art span:last-child{transform:translateY(20px)}.win-dialog .eyebrow{color:#9daa84;font-size:8px}.win-dialog h2{letter-spacing:1px;margin:11px 0 10px;font-size:29px;font-weight:600}.win-description{color:#969c89;font-size:12px}.win-stats{border-block:1px solid #edeee3;justify-content:center;gap:54px;margin:26px 0;padding:18px;display:flex}.win-stats div{flex-direction:column;gap:8px;display:flex}.win-stats span{color:#a2a88f;font-size:10px}.win-stats strong{font-variant-numeric:tabular-nums;color:#758466;font-size:22px;font-weight:500}.primary-button{color:#fff;background:#728663;border:0;border-radius:11px;justify-content:center;align-items:center;gap:14px;width:100%;padding:13px;font-size:13px;display:flex}.primary-button:hover{background:#617554}.text-button{color:#939c84;background:0 0;border:0;padding:16px 0 0;font-size:11px}@keyframes cat-arrive{0%{opacity:.3;transform:scale(.75)translateY(5px)}to{opacity:1;transform:scale(1)}}@keyframes cat-shake{0%,to{transform:translate(0)}30%{transform:translate(-3px)}70%{transform:translate(3px)}}.board-status{color:#718167;background:#f5f7ef;border:1px solid #e8ecdf;border-radius:9px;align-items:flex-start;gap:9px;min-height:61px;margin:-8px 0 17px;padding:11px 12px;display:flex}.board-status svg{width:17px;height:17px;margin-top:2px}.board-status p{margin:0;font-size:12px;line-height:1.6}.board-status.is-error{color:#a44532;background:#fff0e9;border-color:#df9a87}.board-status.is-success{color:#567b46;background:#edf6e7;border-color:#aec59e}.cell.is-mistake{box-shadow:inset 0 0 0 3px #b8513e}.mistake-badge{color:#fffdf8;z-index:5;pointer-events:none;background:#b8513e;border:2px solid #fff1e9;border-radius:50%;place-items:center;width:23px;height:23px;display:grid;position:absolute;top:8px;right:8px}.mistake-badge svg{width:15px;height:15px}.cell.is-mistake:focus-visible:before{border-color:#a83d2b}@media (width>=1100px){.board-wrapper{width:454px}.play-panel{padding-inline:39px}.game-layout{grid-template-columns:minmax(0,1fr) 310px;gap:29px}}@media (width<=900px){.site-shell{padding:0 26px}.game-layout{grid-template-columns:minmax(0,1fr) 270px;gap:20px}.play-panel{padding:23px 22px 0}.rules-card{padding-inline:18px}.rules-list li{gap:9px}.tool{min-width:92px;padding-inline:10px}.tool kbd{display:none}.board-caption{gap:10px}.intro h1{font-size:29px}.difficulty{font-size:11px}.keyboard-help{max-width:calc(100% - 290px);font-size:9px}.board-wrapper{padding-left:14px}.row-labels{width:9px}}@media (width<=720px){.site-shell{max-width:570px;padding:0 21px}.site-header{height:80px}.brand{font-size:28px}.brand-icon{border-radius:11px;width:34px;height:34px}.brand-icon svg{width:25px;height:25px}.save-status{font-size:10px}.intro{align-items:flex-start;padding:29px 0 24px}.eyebrow{letter-spacing:1.5px;margin-bottom:10px;font-size:8px}.intro h1{letter-spacing:.3px;font-size:27px}.intro-description{letter-spacing:0;margin-top:10px;font-size:11px}.difficulty{gap:4px;margin-top:21px;padding:6px 9px;font-size:9px}.difficulty>span{font-size:13px}.game-layout{grid-template-columns:1fr;gap:20px}.play-panel{border-radius:19px;padding:22px 22px 0}.level-heading{margin-bottom:21px}.board-wrapper{padding-left:16px}.row-labels{width:10px}.board-caption{margin-bottom:18px;font-size:9px}.tool{min-width:116px;padding:9px 13px;font-size:12px}.controls{gap:8px;padding-top:16px}.tool kbd{display:block}.feedback p{font-size:10px}.sidebar{gap:0}.note-card{display:none}.rules-card{padding:20px 20px 5px}.rules-card h2{margin-top:9px;font-size:17px}.rules-intro{font-size:10px}.rules-list{grid-template-columns:1fr 1fr;column-gap:17px;padding-top:8px;display:grid}.rules-list li{gap:9px;padding:14px 0}.rules-list li:nth-last-child(2){border-bottom:0}.rules-list strong{font-size:11px}.rules-list p{margin-top:4px;font-size:9px}.rule-illustration{border-radius:8px;width:32px;height:32px}.rule-result{width:12px;position:absolute;top:10px;right:-5px}.rule-result svg{width:12px;height:12px}.keyboard-help{max-width:none;margin:17px 12px 27px;font-size:9px;line-height:1.8}.site-footer{padding:20px 0;font-size:9px}.site-footer>span:last-child{letter-spacing:.6px;font-size:6px}}@media (width<=400px){.site-shell{padding:0 14px}.intro h1{font-size:24px}.difficulty{padding:5px 7px;font-size:8px}.intro-description{font-size:10px}.play-panel{padding:20px 15px 0}.tool{min-width:100px;padding-inline:9px}.tool kbd{display:none}.rules-card{padding-inline:14px}.rules-list{column-gap:13px}.rules-list li{gap:6px}.rule-illustration{width:28px;height:31px}.rules-list strong{font-size:10px}.rules-list p{font-size:8px}.board-caption{gap:8px;font-size:8px}.cat-count strong{font-size:11px}.secondary-actions{gap:21px}}.level-picker{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0 0 24px;display:grid}.level-option{text-align:left;background:#f0f2e8;border:1px solid #e3e6d7;border-radius:13px;align-items:center;gap:14px;min-width:0;padding:15px 18px;transition:background .15s,border-color .15s;display:flex}.level-option:hover{border-color:#a8b698}.level-option.is-active{background:#fffefa;border-color:#95a588;box-shadow:0 3px 12px #344c3408}.level-option-number{color:#a3ad93;font:22px Georgia,serif}.level-option.is-active .level-option-number{color:#718663}.level-option-info{flex-direction:column;gap:6px;min-width:0;display:flex}.level-option-info strong{font-size:13px;font-weight:600}.level-option-info>span{color:#8a9380;font-size:10px}.level-option>svg{color:#879b75;width:18px;height:18px;margin-left:auto}.level-option-arrow{color:#a3ad93;margin-left:auto;font-size:18px}.replay-button{margin-right:24px}@media (width<=720px){.level-picker{gap:9px;margin-bottom:20px}.level-option{gap:9px;padding:12px 10px}.level-option-number{font-size:19px}.level-option-info strong{font-size:12px}.level-option-info>span{font-size:9px}.level-option>svg{width:14px;height:14px}}@media (width<=400px){.level-option{gap:7px;padding:11px 9px}.level-option-info>span{font-size:8px}.level-option-arrow{font-size:15px}.tool-switch{flex:1;min-width:0}.tool{flex:1;min-width:0;padding-inline:8px}.undo-button{white-space:nowrap;flex-shrink:0}}@media (width<=360px){.intro{display:block}.difficulty{width:max-content;margin-top:12px}}.level-picker{grid-template-columns:repeat(3,minmax(0,1fr))}.random-settings{background:#f0f2e8;border:1px solid #dfe5d5;border-radius:13px;margin:0 0 24px;padding:17px 18px}.random-settings-main{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.easy-mode-label{cursor:pointer;white-space:nowrap;align-items:center;gap:8px;font-size:13px;font-weight:600;display:flex}.easy-mode-label input{appearance:auto;accent-color:#728663;cursor:pointer;width:17px;height:17px;margin:0}.easy-mode-label input:focus-visible{outline-offset:4px;outline:3px solid #547c68}.random-settings-description{color:#838e79;font-size:11px;line-height:1.7}.generate-button{color:#fffefa;white-space:nowrap;background:#728663;border:0;border-radius:8px;justify-content:center;align-items:center;gap:7px;margin-left:auto;padding:10px 13px;font-size:12px;display:flex}.generate-button:hover:not(:disabled){background:#617554}.generate-button svg{width:15px;height:15px}.cancel-generation{color:#78866d;background:0 0;border:0;padding:9px 3px;font-size:12px}.generation-status{color:#7d8d70;margin:12px 0 0;font-size:11px;line-height:1.7}.generation-status.is-error{color:#b16b51}@media (width<=720px){.level-picker{grid-template-columns:repeat(2,minmax(0,1fr))}.random-option{grid-column:1/-1}.random-settings{margin-bottom:20px;padding:14px}.random-settings-main{gap:11px 12px}.random-settings-description{flex-basis:100%;order:2;font-size:10px}.generate-button{padding:9px 11px;font-size:11px}.easy-mode-label{font-size:12px}.generation-status{font-size:10px}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}dialog::backdrop{-webkit-backdrop-filter:none;backdrop-filter:none}}.random-size-label{white-space:nowrap;align-items:center;gap:8px;font-size:13px;display:flex}.random-size-label select{font:inherit;color:var(--ink);cursor:pointer;background:#fffefa;border:1px solid #bdc9af;border-radius:7px;padding:6px 8px}.random-size-label select:focus-visible{outline-offset:3px;outline:3px solid #547c68}.random-settings-description{margin:12px 0 0}.board-wrapper.is-large .mistake-badge{border-width:1px;width:30%;height:30%;top:7%;right:7%}.board-wrapper.is-large .mistake-badge svg{width:75%;height:75%}@media (width<=720px){.random-size-label{font-size:12px}}