:root{--ink:#3b1d12;--red:#ad331f;--wood:#6f321d;--wood2:#9a502b;--gold:#c9934f;--paper:#fff8e9;--paper2:#edddbf;--jade:#56765f;--line:#b38b62;--shadow:0 18px 45px rgba(69,35,20,.18);font-family:"Noto Serif SC","Songti SC","STSong","Microsoft YaHei",serif;color:var(--ink);background:#eadcc5}
*{box-sizing:border-box}[hidden]{display:none!important}html{min-height:100%;background:#eadcc5}body{margin:0;min-height:100%;background:linear-gradient(120deg,#f6ead6cc,#eee0c9dd);overflow-x:hidden}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible{outline:4px solid #d99b4a;outline-offset:3px}.world-bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:radial-gradient(circle at 55% 7%,#fffaf1 0 12%,transparent 38%),linear-gradient(155deg,#f1ddc0,#fff7e9 46%,#e8d3b6)}.mountain{position:absolute;right:-10vw;border-style:solid;border-width:0 28vw 34vw;border-color:transparent transparent rgba(117,112,91,.1);bottom:8vh;filter:blur(2px)}.mountain-b{right:16vw;bottom:3vh;border-width:0 20vw 24vw;border-bottom-color:rgba(92,104,82,.08)}.branch{position:absolute;left:-8vw;top:-4vw;width:44vw;height:8vw;border-top:13px solid rgba(76,39,20,.23);border-radius:50%;transform:rotate(-5deg)}.branch:after{content:"";position:absolute;left:17vw;top:-2vw;width:5vw;height:5vw;border-radius:60% 20% 60% 20%;background:#e3a9a1;box-shadow:7vw 1vw #e8b6ad,13vw -1vw #dc9991,20vw 2vw #e7b8ad}.lantern{position:absolute;left:4vw;top:3vh;width:74px;height:130px;border-radius:48%;background:linear-gradient(90deg,#e49d45,#ffe5a5 48%,#d9852c);box-shadow:0 0 40px #ffd98b;border:6px solid #8a4b24}.lantern:before,.lantern:after{content:"";position:absolute;left:18px;right:18px;height:8px;background:#6e321c}.lantern:before{top:-13px}.lantern:after{bottom:-13px}
.app-shell{width:min(980px,100%);margin:auto;min-height:100vh;padding:max(20px,env(safe-area-inset-top)) clamp(14px,3vw,28px) max(30px,env(safe-area-inset-bottom))}.screen[hidden]{display:none!important}.screen.active{display:block;animation:fade .28s ease}@keyframes fade{from{opacity:0;transform:translateY(8px)}}
.brand-lockup{text-align:center;padding:30px 10px 18px;position:relative}.brand-lockup p,.toolbar-kicker{letter-spacing:.26em;font:700 12px/1.2 Arial,sans-serif;color:#98602f}.brand-lockup h1{font-size:clamp(44px,10vw,86px);margin:5px 0;color:#54210f;text-shadow:0 2px #fff}.seal{position:absolute;right:19%;top:61px;border:3px solid var(--red);color:var(--red);padding:4px;border-radius:8px;font-size:13px;transform:rotate(4deg)}.cloud-divider{color:#b77e3d;font-size:28px}.carved-card{background:linear-gradient(145deg,#fffaf0,#f3e2bf);border:3px solid #c7955d;border-radius:30px;box-shadow:inset 0 0 0 5px rgba(255,255,255,.55),var(--shadow)}.welcome-card{max-width:750px;margin:10px auto;padding:34px;text-align:center}.eyebrow{display:inline-block;color:#a34b25;font-size:13px;font-weight:800;letter-spacing:.18em}.welcome-card h2{font-size:clamp(28px,6vw,44px);margin:10px}.welcome-card p{color:#765b47;line-height:1.75;margin:0 auto;max-width:610px}.progress-block{margin:26px auto 22px;max-width:560px}.progress-block>div:first-child{display:flex;justify-content:space-between;font-size:14px}.progress-track{height:12px;border:2px solid #c69355;border-radius:99px;background:#f8eacb;overflow:hidden}.progress-track i{display:block;height:100%;width:0;background:linear-gradient(90deg,#8f321f,#d28437);transition:width .35s}.home-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}.wood-button,.paper-button,.round-button{border:0;transition:transform .15s,filter .15s,box-shadow .15s}.wood-button{min-height:58px;padding:12px 28px;border-radius:18px;background:linear-gradient(#9a4e27,#662a18);border:3px solid #b8783d;color:#fff7df;box-shadow:inset 0 2px #d99250,0 7px 0 #482014,0 12px 20px #65331f45;font-weight:800}.wood-button.primary{background:linear-gradient(#b44d2d,#752514)}.wood-button.dark{background:linear-gradient(#754127,#4f2618)}.paper-button{min-height:54px;padding:12px 24px;border-radius:18px;background:linear-gradient(#fffdf5,#efdbb4);border:2px solid #c39157;box-shadow:inset 0 2px #fff,0 5px 0 #b07a43,0 9px 18px #71452633;font-weight:800}.wood-button:hover,.paper-button:hover,.round-button:hover{filter:brightness(1.08);transform:translateY(-2px)}.wood-button:active,.paper-button:active,.round-button:active{transform:translateY(3px);box-shadow:inset 0 2px 5px #44200c55,0 2px 0 #60301c}.wide{width:100%}.rule-ribbon{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:24px}.rule-ribbon span{background:#ffffff9c;border:1px solid #d9bd94;border-radius:99px;padding:10px 15px}.rule-ribbon b{color:var(--red);margin-right:6px}
.screen-toolbar{display:grid;grid-template-columns:52px 1fr 52px;align-items:center;gap:12px;margin:10px 0 20px}.screen-toolbar>div{text-align:center}.screen-toolbar h2{margin:2px 0;font-size:30px}.round-button{width:50px;height:50px;border-radius:50%;background:#fff6df;border:2px solid #c58f54;box-shadow:0 5px 0 #a66d39;font-size:23px;font-weight:900}.map-summary{padding:22px 26px;margin-bottom:22px;display:flex;align-items:center;gap:25px}.map-summary div{min-width:120px;text-align:center}.map-summary span{display:block;font-size:13px}.map-summary strong{font-size:28px;color:var(--red)}.map-summary p{margin:0;line-height:1.6;color:#755d4a}.tutorial-island{width:100%;display:grid;grid-template-columns:72px 1fr auto;gap:18px;align-items:center;text-align:left;margin-bottom:18px}.level-card{border:2px solid #c68b4b;border-radius:24px;padding:16px;background:linear-gradient(135deg,#fff9e9,#f0d8ab);box-shadow:0 8px 18px #68402025;transition:.18s}.level-card:hover{transform:translateY(-3px);box-shadow:0 13px 24px #68402035}.level-card:active{transform:scale(.985)}.level-card span:not(.level-medallion){display:flex;flex-direction:column}.level-card small{color:#9a5e2e}.level-card b{font-size:22px;margin:2px 0}.level-card em{font-style:normal;color:#7d6c5e;font-size:13px}.level-card>i{font-style:normal;background:#8f3921;color:white;border-radius:99px;padding:7px 12px}.level-medallion{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:#74331f;color:#f8d68a;font-size:30px}.series-list{display:grid;gap:20px}.series-card{padding:22px}.series-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:16px}.series-head h3{font-size:26px;margin:0}.series-head p{margin:4px 0;color:#7e6652}.series-badge{padding:7px 12px;border-radius:99px;background:#6f321d;color:#fff2d1;white-space:nowrap}.level-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:11px}.level-chip{border:2px solid #c89a61;background:#fff9e9;border-radius:16px;min-height:96px;padding:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;transition:.16s}.level-chip:hover{transform:translateY(-3px);background:#fff}.level-chip strong{font-size:24px;color:#8a321e}.level-chip small{color:#806a57}.level-chip.completed:after{content:"已通关";font-size:11px;color:#fff;background:#59725c;padding:3px 7px;border-radius:99px}.creator-teaser{margin-top:22px;padding:22px;display:grid;grid-template-columns:62px 1fr auto;gap:18px;align-items:center}.teaser-icon{font-size:38px;color:#a24b25}.creator-teaser h3{margin:3px 0}.creator-teaser p{margin:0;color:#765f4d}
.game-toolbar{margin-bottom:12px}.game-hud{display:grid;grid-template-columns:1fr 1px 1fr 1px 1fr;margin:0 auto 14px;padding:15px;max-width:760px}.game-hud div{text-align:center}.game-hud span{display:block;font-size:12px;color:#8c6a4f}.game-hud strong{font-size:25px}.game-hud i{background:#caa77b}.board-card{position:relative;max-width:820px;margin:auto;border:10px solid transparent;border-image:linear-gradient(135deg,#71331f,#b36c35,#582615) 1;background:radial-gradient(circle at 50% 40%,#fff8e8,#ead0a5);box-shadow:var(--shadow);padding:12px 10px 18px}.board-card:before{content:"";position:absolute;inset:5px;border:2px solid #d1a464;pointer-events:none}.board-head{position:relative;z-index:3;display:flex;justify-content:space-between;align-items:center;padding:4px 8px 8px;font-weight:700}.status-dot{display:inline-block;width:10px;height:10px;background:#6fa17a;border-radius:50%;margin-right:7px;box-shadow:0 0 0 5px #6fa17a22}.rule-tag{font-size:12px;border:1px solid #b4804b;border-radius:99px;padding:5px 10px;background:#fff8e6}.board-wrap{height:min(68vw,590px);min-height:310px;display:grid;place-items:center;touch-action:none}.board-wrap svg{width:100%;height:100%;overflow:visible;touch-action:none}.goal-preview{position:absolute;z-index:6;right:12px;top:55px;width:128px;height:116px;border:2px solid #8b4d2b;border-radius:14px;background:#fff8e9e8;padding:7px;box-shadow:0 8px 18px #49291b38;overflow:hidden}.goal-preview>span{display:block;font-size:12px;font-weight:900}.goal-preview svg{width:100%;height:72px;touch-action:none}.goal-preview small{display:block;font-size:9px;color:#80644e}.removed-tray{display:flex;align-items:center;justify-content:center;gap:12px;min-height:72px}.removed-tray>span{font-weight:800;color:#74553e}.removed-tray>div{display:flex;gap:8px}.mini-tile{display:grid;place-items:center;width:48px;height:43px;background:#fff8e9;color:var(--red);font-weight:900;font-size:20px;clip-path:polygon(50% 0,0 100%,100% 100%);filter:drop-shadow(0 4px 2px #68442555)}.mini-tile.down{clip-path:polygon(0 0,100% 0,50% 100%)}.removed-tray.hidden{visibility:hidden}.slot-shape{fill:#351d1508;stroke:#70402a55;stroke-width:2}.slot-shape.empty{fill:#4b2b1b16;stroke:#a26b3a;stroke-dasharray:8 5}.tile{cursor:pointer;filter:drop-shadow(0 4px 2px rgba(55,30,18,.3));transition:transform .2s cubic-bezier(.2,.75,.25,1)}.tile polygon{fill:url(#tileFill);stroke:#6b3a23;stroke-width:3;stroke-linejoin:round}.tile text{fill:#b13320;font-family:"Songti SC","STSong",serif;font-size:43px;font-weight:900;text-anchor:middle;dominant-baseline:middle;pointer-events:none}.tile:hover polygon,.tile.dragging polygon{filter:brightness(1.08);stroke:#d07e2e;stroke-width:5}.tile.fixed polygon{fill:url(#fixedFill);stroke:#36543d}.tile.fixed text{fill:#294d35}.tile.fixed .tile-mark{font:900 13px sans-serif;fill:#36543d}.tile.linked polygon{fill:var(--group-fill,#e9b5ac)}.tile.linked .tile-mark{font:900 12px Arial,sans-serif;fill:#5b2318}.tile.home polygon{stroke:#aa6f39}.tile.tutorial-target{animation:glow 1s infinite alternate}.tile.blocked{animation:shake .32s}.tile.returned{animation:returnTile .55s both}.gesture-active .tile{transition:none}@keyframes glow{to{filter:drop-shadow(0 0 10px #ffb227)}}@keyframes shake{25%{transform:translateX(-7px)}50%{transform:translateX(7px)}75%{transform:translateX(-4px)}}@keyframes returnTile{from{opacity:0;transform:translateY(70px) scale(.7)}to{opacity:1}}
.inspection-panel,.tutorial-panel{max-width:760px;margin:16px auto 0;padding:20px;text-align:center}.inspection-panel h3{margin:7px}.inspection-panel p{color:#765d48}.difficulty-choice{display:flex;justify-content:center;gap:8px;margin:14px auto 18px}.difficulty-choice button{min-width:88px;border:1px solid #b47b42;border-radius:99px;padding:9px 14px;background:#fff9e9}.difficulty-choice button.active{background:#74331f;color:#fff5dc;box-shadow:inset 0 0 0 2px #c58648}.tutorial-panel{display:grid;grid-template-columns:52px 1fr auto;gap:14px;text-align:left;align-items:center;background:#fff9eb;border:2px solid #c89558;border-radius:22px}.guide-avatar{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#7a3924;color:#ffe6ad}.tutorial-panel span{font-size:12px;color:#a04b28}.tutorial-panel h3,.tutorial-panel p{margin:2px}.mini-action{border:0;background:#8e3a22;color:white;border-radius:13px;padding:11px}.game-actions{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:12px;max-width:760px;margin:18px auto}.game-actions button{min-width:0;padding-inline:10px}.game-actions button:disabled{opacity:.45;cursor:not-allowed;transform:none}.toast{position:fixed;left:50%;bottom:max(24px,env(safe-area-inset-bottom));z-index:40;transform:translate(-50%,25px);background:#402216e8;color:#fff8e9;padding:12px 18px;border-radius:99px;opacity:0;pointer-events:none;transition:.2s;box-shadow:0 8px 20px #0003}.toast.show{opacity:1;transform:translate(-50%,0)}
.dialog{width:min(92vw,560px);border:0;border-radius:28px;padding:0;background:linear-gradient(#fffaf0,#eed9b5);color:var(--ink);box-shadow:0 24px 70px #2f180e80}.dialog::backdrop{background:#2e1a13aa;backdrop-filter:blur(4px)}.dialog form,.win-dialog{padding:32px}.dialog h2{font-size:30px;margin:8px 0 16px}.dialog-close{position:absolute;right:14px;top:12px;width:38px;height:38px;border:0;border-radius:50%;background:#6e331f;color:white;font-size:22px}.dialog ol{padding:0;list-style:none}.dialog li{display:flex;gap:12px;align-items:flex-start;margin:12px 0}.dialog li>b{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:#7f3b24;color:#fff}.dialog li p{margin:4px 0}.question-list{counter-reset:q}.question-list li:before{counter-increment:q;content:counter(q);flex:0 0 28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#7f3b24;color:white}.goal-dialog{width:min(94vw,780px)}.full-goal-wrap{height:min(70vh,620px);display:grid;place-items:center;background:#f3dfba;border:2px solid #bf8c53;border-radius:20px}.full-goal-wrap svg{width:100%;height:100%}.win-dialog{text-align:center}.celebration{width:74px;height:74px;margin:auto;display:grid;place-items:center;border:5px double #b33220;border-radius:50%;color:#b33220;font-size:34px;font-weight:900;transform:rotate(-7deg)}
@media(max-width:700px){.app-shell{padding-inline:10px}.brand-lockup{padding-top:16px}.lantern{opacity:.35;transform:scale(.75);transform-origin:top left}.welcome-card{padding:25px 18px}.map-summary{display:block}.map-summary div{text-align:left;margin-bottom:8px}.level-grid{grid-template-columns:repeat(3,1fr)}.creator-teaser{grid-template-columns:48px 1fr}.creator-teaser button{grid-column:1/-1}.board-card{border-width:7px;padding-inline:3px}.board-wrap{height:min(92vw,560px)}.goal-preview{width:105px;height:101px;top:49px;right:6px}.goal-preview svg{height:60px}.tile text{font-size:39px}.game-actions{gap:7px}.wood-button,.paper-button{font-size:14px;min-height:52px}.tutorial-panel{grid-template-columns:45px 1fr}.tutorial-panel button{grid-column:1/-1}.dialog form,.win-dialog{padding:26px 20px}.screen-toolbar h2{font-size:24px}}
@media(max-width:390px){.level-grid{grid-template-columns:repeat(2,1fr)}.game-hud strong{font-size:20px}.board-head{font-size:13px}.goal-preview{transform:scale(.88);transform-origin:top right}.tile text{font-size:36px}}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}

/* v13: larger play surface, tactile feedback, guided tutorial and creator workshop */
.app-shell{width:min(1120px,100%)}
.game-screen{width:100%}.game-hud,.inspection-panel,.game-actions{max-width:940px}.board-card{max-width:1040px}
.board-wrap{width:100%;height:auto;min-height:0;aspect-ratio:var(--board-ratio,1.2);max-height:78vh}
.board-wrap svg{display:block}
.start-game-button{min-width:min(330px,90%);font-size:25px;letter-spacing:.16em}
.goal-preview.tutorial-hidden{opacity:0;pointer-events:none}
.tile:focus,.tile:focus-visible{outline:none}
.tile:hover polygon,.tile.dragging polygon{filter:brightness(.95);stroke:#8f4a29;stroke-width:3}
.tile.pressed polygon{filter:brightness(.84)}
.tile.blocked{animation:none}
.tile.blocked polygon{animation:tileShake .34s ease}
.tile.tutorial-target{animation:none}
.tile.tutorial-target polygon{animation:targetNudge .78s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes tileShake{0%,100%{transform:translateX(0)}25%{transform:translateX(-5px)}50%{transform:translateX(5px)}75%{transform:translateX(-3px)}}
@keyframes targetNudge{0%,100%{transform:translateY(0) rotate(0)}45%{transform:translateY(-4px) rotate(-2deg)}70%{transform:translateY(2px) rotate(2deg)}}
.tutorial-arrow{fill:none;stroke:#c84428;stroke-width:9;stroke-linecap:round;filter:drop-shadow(0 3px 1px #fff8e9);animation:arrowBob .75s ease-in-out infinite}
@keyframes arrowBob{50%{transform:translateY(7px)}}
.board-toast{position:absolute;z-index:14;left:50%;top:54px;max-width:min(84%,560px);transform:translate(-50%,-12px);opacity:0;pointer-events:none;background:#49261dee;color:#fff9e9;border:2px solid #e7bd7b;border-radius:99px;padding:10px 18px;text-align:center;font-weight:800;box-shadow:0 8px 22px #32180e55;transition:.18s}
.board-toast.show{opacity:1;transform:translate(-50%,0)}
.tutorial-panel{position:absolute;z-index:10;top:54px;left:12px;width:min(650px,calc(100% - 170px));margin:0;padding:12px 14px;grid-template-columns:44px 1fr auto;border-radius:18px;box-shadow:0 10px 25px #4f2a1945}
.tutorial-panel .guide-avatar{width:40px;height:40px}.tutorial-panel h3{font-size:18px}.tutorial-panel p{font-size:14px;line-height:1.45}
.game-actions{grid-template-columns:repeat(4,1fr)}
.setting-row{display:flex;align-items:center;gap:12px;margin:18px 0;padding:13px;background:#fff8e8;border:1px solid #d4ad78;border-radius:15px}.setting-row input{width:22px;height:22px;accent-color:#7c3b23}.setting-row span{display:flex;flex-direction:column}.setting-row small{color:#816650;margin-top:3px}

.creator-intro{padding:22px 26px;margin-bottom:18px;display:flex;align-items:center;justify-content:space-between;gap:22px}.creator-intro h3{margin:5px 0}.creator-intro p{margin:0;color:#765f4d}.creator-intro label{display:flex;flex-direction:column;gap:6px;font-weight:800;min-width:220px}.creator-intro input{border:2px solid #bd8a53;border-radius:12px;background:#fffaf0;padding:10px 12px;font:inherit;color:var(--ink)}
.creator-layout{display:grid;grid-template-columns:180px 1fr;gap:16px;align-items:start}.creator-tools{padding:14px;display:grid;gap:10px;position:sticky;top:10px}.creator-tool{border:2px solid #c08d53;border-radius:15px;background:#fff8e7;padding:11px 9px;display:flex;align-items:center;gap:10px;text-align:left;font-weight:800}.creator-tool b{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:#ead0a5;color:#7b351f;font-size:20px}.creator-tool:hover,.creator-tool.active{background:#70321e;color:#fff6dc;transform:translateY(-1px)}.creator-tool.active b{background:#f4d493;color:#612714}.compact{min-height:42px!important;padding:8px!important;font-size:12px}.creator-canvas-card{padding:14px;min-width:0}.creator-canvas-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:9px;font-weight:800;color:#73513c}.creator-canvas-wrap{position:relative;width:100%;aspect-ratio:1.25;overflow:auto;border:2px solid #bf8c54;border-radius:20px;background:linear-gradient(#fffdf7,#f0dfbd)}.creator-canvas{display:block;width:100%;height:100%;min-width:680px;touch-action:manipulation}.creator-cell{cursor:pointer}.creator-cell polygon{fill:#6d432009;stroke:#8c684750;stroke-width:1.8;transition:.14s}.creator-cell:hover polygon{fill:#d6b0793b;stroke:#a45c2d;stroke-width:3}.creator-cell.selected polygon{fill:#fffaf0;stroke:#744127;stroke-width:3}.creator-cell.fixed polygon{fill:#8fac92}.creator-cell.linked polygon{fill:var(--creator-group)}.creator-cell.pending polygon{stroke:#d04c2e;stroke-width:7}.creator-cell.final polygon{stroke-dasharray:8 4}.creator-cell text{fill:#a93120;text-anchor:middle;dominant-baseline:middle;font:900 35px "Songti SC",serif;pointer-events:none}.creator-cell:focus{outline:none}.creator-frame line{stroke:#9a5c30;stroke-width:9;stroke-linecap:round;stroke-dasharray:15 9;opacity:.58;pointer-events:none}.creator-inline-message{height:0;opacity:0;text-align:center;font-weight:800;color:#70402a;transition:.18s}.creator-inline-message.show{height:auto;opacity:1;padding:10px 4px 0}.creator-inline-message[data-tone="warn"]{color:#a22f21}.creator-inline-message[data-tone="success"]{color:#3f6b4a}.creator-check{margin-top:18px;padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px}.creator-check h3{margin:5px 0}.creator-check p{margin:0;color:#765f4d;max-width:650px}.creator-check-actions{display:grid;grid-template-columns:repeat(2,minmax(135px,1fr));gap:10px}.creator-check-actions button{padding-inline:14px}.creator-check-actions button:disabled{opacity:.42;cursor:not-allowed;transform:none}

@media(max-width:700px){
  .board-wrap{max-height:none;aspect-ratio:var(--board-ratio,1.12)}
  .board-card{border-width:6px;padding:7px 2px 12px}
  .game-actions{grid-template-columns:repeat(2,1fr);margin-top:12px}
  .tutorial-panel{top:47px;left:7px;width:calc(100% - 14px);grid-template-columns:38px 1fr;padding:10px;gap:9px}.tutorial-panel button{grid-column:1/-1;min-height:38px}.tutorial-panel p{font-size:12px}.tutorial-panel h3{font-size:15px}
  .board-toast{top:47px;font-size:13px;padding:8px 13px}
  .creator-intro,.creator-check{display:block;padding:18px}.creator-intro label{margin-top:15px;min-width:0}.creator-layout{display:block}.creator-tools{position:static;grid-template-columns:repeat(2,1fr);margin-bottom:12px}.creator-tools .mini-action,.creator-tools .paper-button{grid-column:1/-1}.creator-tool{padding:8px}.creator-canvas-card{padding:8px}.creator-canvas-wrap{aspect-ratio:.78}.creator-canvas{width:auto;height:100%;min-width:720px}.creator-check-actions{margin-top:15px;grid-template-columns:repeat(2,1fr)}
}

/* v16: preview lives outside the board; strategy path and measured hints */
.mastery-path{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:center;margin:0 0 18px;padding:18px 22px}.mastery-path h3{margin:3px 0;font-size:23px}.mastery-path p{margin:0;color:#765f4d}.mastery-steps{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:7px}.mastery-steps span{padding:7px 11px;border-radius:99px;background:#617a64;color:#fff8e8;font-size:12px;font-weight:900}.mastery-steps .pending{background:#e6d2aa;color:#71543d}
.level-chip:disabled{cursor:not-allowed;filter:grayscale(.35);opacity:.58;transform:none}.level-chip.locked:after{content:"尚未解锁";font-size:11px;color:#fff;background:#735f52;padding:3px 7px;border-radius:99px}.series-card.locked-series{position:relative}.series-card.locked-series .series-head:after{content:"完成基础认证后开放";font-size:12px;font-weight:900;color:#7d432c;background:#f2dcae;border:1px solid #c58b4e;border-radius:99px;padding:7px 10px}
.game-stage.guided,.game-stage.strategy-guided{display:grid;grid-template-columns:minmax(0,1fr) 285px;grid-template-areas:"board guide";gap:14px;align-items:start}.game-stage .board-column{grid-area:board;width:100%;min-width:0}.game-stage .board-card{grid-area:auto;width:100%;max-width:1040px}.game-stage .tutorial-panel,.game-stage .strategy-panel{grid-area:guide}
.strategy-panel{position:sticky;top:10px;padding:16px 15px;text-align:left;background:#fff9eb;border:2px solid #c89558;border-radius:18px;box-shadow:0 8px 20px #4f2a192b}.strategy-panel[hidden]{display:none}.strategy-panel h3{font-size:19px;margin:3px 0 7px}.strategy-panel p{font-size:13px;line-height:1.6;margin:0;color:#6f533f}
.goal-preview{position:relative;z-index:6;inset:auto;width:100%;max-width:1040px;height:122px;margin:0 auto 8px;padding:8px 14px;display:grid;grid-template-columns:170px minmax(0,1fr);align-items:center;gap:10px;border:2px solid #8b4d2b;border-radius:16px;background:#fff8e9;box-shadow:0 5px 14px #49291b25;overflow:hidden;text-align:left}.goal-preview>span{display:flex;flex-direction:column;gap:4px;font-size:15px;font-weight:900}.goal-preview>span small{font-size:11px;font-weight:500;color:#80644e}.goal-preview svg{width:100%;height:104px;touch-action:none}.goal-preview.tutorial-hidden{display:none}.goal-preview.tutorial-preview-target{animation:previewGuidePulse 1s ease-in-out infinite;outline:4px solid #efb64d88}
.board-toast{position:relative;z-index:14;left:auto;top:auto;max-width:1040px;max-height:0;margin:0 auto;transform:none;opacity:0;overflow:hidden;pointer-events:none;background:#49261dee;color:#fff9e9;border:0;border-radius:14px;padding:0 14px;text-align:center;font-weight:800;box-shadow:0 5px 16px #32180e33;transition:.18s}.board-toast.show{max-height:70px;margin-bottom:8px;padding:10px 14px;opacity:1;transform:none;border:2px solid #e7bd7b}
.tile.hint-target polygon{stroke:#d98b24;stroke-width:6;filter:brightness(.92) drop-shadow(0 0 8px #f4b84b)}
.step-hint-arrow{stroke-width:5}.step-hint-point{stroke-width:4}
#hintCount{font-size:11px;opacity:.78;white-space:nowrap}.win-rating{display:inline-block;margin:3px auto 8px;padding:7px 14px;border-radius:99px;background:#627c65;color:#fff8e7;font-weight:900}.win-rating.practice{background:#aa7441}
.goal-dialog{width:min(96vw,900px)}.full-goal-wrap{height:min(76vh,720px)}

@media(max-width:700px){
  .mastery-path{display:block;padding:15px}.mastery-steps{justify-content:flex-start;margin-top:12px}.mastery-path h3{font-size:20px}
  .game-stage.guided,.game-stage.strategy-guided{display:grid;grid-template-columns:1fr;grid-template-areas:"guide" "board";gap:7px}
  .strategy-panel{position:relative;top:auto;padding:10px 12px}.strategy-panel h3{font-size:16px;margin:1px 0 4px}.strategy-panel p{font-size:12px;line-height:1.45}
  .goal-preview{inset:auto;width:100%;height:108px;margin-bottom:7px;padding:6px 9px;grid-template-columns:112px minmax(0,1fr);gap:5px;transform:none}.goal-preview>span{font-size:14px}.goal-preview>span small{font-size:9px}.goal-preview svg{height:94px}
  .board-toast{top:auto;max-width:100%;font-size:12px}.board-toast.show{padding:8px 10px}
  .goal-dialog{width:min(98vw,900px)}.goal-dialog form{padding:24px 10px 16px}.full-goal-wrap{height:min(78vh,700px)}
}

/* v15: unobstructed tutorial, compact game layout and HUD difficulty menu */
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.game-toolbar{margin:4px 0 8px}.game-toolbar .round-button{width:44px;height:44px;box-shadow:0 3px 0 #a66d39}.game-toolbar h2{font-size:27px}
.game-hud{position:relative;grid-template-columns:1fr 1px 1fr 1px 1fr;max-width:820px;margin-bottom:8px;padding:8px 12px;border-radius:18px}.game-hud strong{font-size:20px;line-height:1.15}.game-hud span{font-size:11px}
.difficulty-control{position:relative}.difficulty-control>button{display:flex;align-items:center;justify-content:center;gap:5px;width:100%;border:0;background:transparent;color:inherit;padding:0;cursor:pointer}.difficulty-control>button b{font-size:11px;color:#95623f}.difficulty-control>button:disabled{cursor:default}.difficulty-control>button:disabled b{display:none}
.difficulty-menu{position:absolute;z-index:40;top:calc(100% + 12px);right:4px;min-width:116px;padding:7px;background:#fff8e8;border:2px solid #b67a43;border-radius:14px;box-shadow:0 10px 25px #3f24173d}.difficulty-menu button{display:block;width:100%;border:0;border-radius:9px;background:transparent;padding:9px 12px;font-weight:800;color:#70402b}.difficulty-menu button:hover,.difficulty-menu button.active{background:#74331f;color:#fff6df}
.game-stage{width:100%;max-width:1120px;margin:0 auto}.game-stage.guided{display:grid;grid-template-columns:minmax(0,1fr) 285px;grid-template-areas:"board guide";gap:14px;align-items:start}.game-stage .board-card{grid-area:board;width:100%;max-width:1040px}.game-stage .tutorial-panel{grid-area:guide}
.tutorial-panel{position:relative;z-index:7;top:auto;left:auto;width:100%;max-width:none;margin:0;padding:15px 14px;display:grid;grid-template-columns:40px 1fr;gap:10px;text-align:left;align-items:start;background:#fff9eb;border:2px solid #c89558;border-radius:18px;box-shadow:0 8px 20px #4f2a192b}.tutorial-panel[hidden]{display:none}.tutorial-panel .guide-avatar{width:38px;height:38px}.tutorial-panel button{grid-column:1/-1;min-height:40px}.tutorial-panel h3{font-size:17px;margin:1px 0 4px}.tutorial-panel p{font-size:13px;line-height:1.5;margin:0}.tutorial-panel span{font-size:11px}
.board-card{padding:5px 5px 10px}.board-toast{top:8px}.board-wrap{max-height:82vh}.removed-tray{min-height:58px}
.goal-preview{right:8px;top:8px;width:168px;height:154px;padding:7px 9px;border-radius:16px}.goal-preview>span{font-size:13px}.goal-preview svg{height:103px}.goal-preview small{font-size:10px}.goal-preview.tutorial-preview-target{animation:previewGuidePulse 1s ease-in-out infinite;outline:5px solid #efb64d88}
@keyframes previewGuidePulse{50%{transform:scale(1.045);box-shadow:0 10px 27px #d9823d88}}
.tutorial-arrow{stroke-width:8;filter:drop-shadow(0 3px 2px #fff8e9)}
.tutorial-flow-arrow{stroke-dasharray:22 14;animation:flowArrow 1s linear infinite}
.tutorial-touch-point{fill:#fff8e9;stroke:#c84428;stroke-width:6;animation:touchPoint 1s ease-in-out infinite}
@keyframes flowArrow{to{stroke-dashoffset:-72}}
@keyframes touchPoint{50%{r:17;opacity:.55}}
.inspection-panel{max-width:820px;margin-top:10px;padding:13px 18px}.inspection-panel h3{font-size:19px;margin:2px}.inspection-panel p{font-size:13px;margin:5px auto 10px}.inspection-panel .eyebrow{font-size:10px}.start-game-button{min-height:48px;min-width:min(280px,88%);font-size:21px}
.game-actions{max-width:820px;margin:10px auto;gap:8px}.game-actions button{min-height:46px;padding-top:8px;padding-bottom:8px}

@media(max-width:700px){
  .game-toolbar{grid-template-columns:44px 1fr 44px;margin-bottom:6px}.game-toolbar h2{font-size:21px}.game-toolbar .toolbar-kicker{font-size:9px}
  .game-hud{margin-bottom:6px;padding:7px 6px}.game-hud strong{font-size:17px}.game-hud span{font-size:10px}
  .game-stage.guided{display:grid;grid-template-columns:1fr;grid-template-areas:"guide" "board";gap:7px}
  .tutorial-panel{grid-template-columns:34px 1fr;padding:8px 10px;gap:7px;border-radius:14px}.tutorial-panel .guide-avatar{width:32px;height:32px}.tutorial-panel h3{font-size:14px;margin:0}.tutorial-panel p{font-size:11.5px;line-height:1.35}.tutorial-panel button{min-height:34px;padding:7px}
  .board-card{padding:3px 1px 7px}.board-wrap{max-height:none;aspect-ratio:var(--board-ratio,1.12)}.removed-tray{min-height:48px}
  .goal-preview{width:138px;height:130px;right:5px;top:5px;padding:5px 7px}.goal-preview svg{height:84px}.goal-preview>span{font-size:12px}.goal-preview small{font-size:9px}
  .board-toast{top:5px;max-width:72%;font-size:12px}
  .inspection-panel{margin-top:7px;padding:10px 12px}.inspection-panel h3{font-size:16px}.inspection-panel p{font-size:11px}.start-game-button{min-height:44px;font-size:18px}
  .game-actions{margin:7px auto;gap:6px}.game-actions button{min-height:42px;font-size:12px;padding:7px 4px}
  .difficulty-menu{right:-4px;top:calc(100% + 9px)}
}

/* v16 final cascade: these rules intentionally follow v15 */
.game-stage.guided,.game-stage.strategy-guided{display:grid;grid-template-columns:minmax(0,1fr) 285px;grid-template-areas:"board guide";gap:14px;align-items:start}.game-stage .board-column{grid-area:board;width:100%;min-width:0}.game-stage .board-card{grid-area:auto;width:100%;max-width:1040px}.game-stage .tutorial-panel,.game-stage .strategy-panel{grid-area:guide}
.goal-preview{position:relative;z-index:6;inset:auto;width:100%;max-width:1040px;height:122px;margin:0 auto 8px;padding:8px 14px;display:grid;grid-template-columns:170px minmax(0,1fr);align-items:center;gap:10px;border:2px solid #8b4d2b;border-radius:16px;background:#fff8e9;box-shadow:0 5px 14px #49291b25;overflow:hidden;text-align:left;transform:none}.goal-preview>span{display:flex;flex-direction:column;gap:4px;font-size:15px;font-weight:900}.goal-preview>span small{font-size:11px;font-weight:500;color:#80644e}.goal-preview svg{width:100%;height:104px;touch-action:none}.goal-preview.tutorial-hidden{display:none}
.board-toast{position:relative;z-index:14;left:auto;top:auto;max-width:1040px;max-height:0;margin:0 auto;transform:none;opacity:0;overflow:hidden;pointer-events:none;border:0;border-radius:14px;padding:0 14px}.board-toast.show{max-height:70px;margin-bottom:8px;padding:10px 14px;opacity:1;transform:none;border:2px solid #e7bd7b}
@media(max-width:700px){
  .game-stage.guided,.game-stage.strategy-guided{display:grid;grid-template-columns:1fr;grid-template-areas:"guide" "board";gap:7px}
  .goal-preview{inset:auto;width:100%;height:108px;margin-bottom:7px;padding:6px 9px;grid-template-columns:112px minmax(0,1fr);gap:5px;transform:none}.goal-preview>span{font-size:14px}.goal-preview>span small{font-size:9px}.goal-preview svg{height:94px}
  .board-toast{top:auto;max-width:100%;font-size:12px}.board-toast.show{padding:8px 10px}
}

/* v18: symmetric creator grid, understated fixed tiles and inset linked outlines */
.tile.fixed polygon{fill:url(#fixedFill);stroke:#6b3a23}.tile.fixed text{fill:#a83221}.tile.fixed .tile-mark{display:none}.tile.linked polygon{fill:url(#tileFill)}
.linked-outline{pointer-events:none;transition:transform .2s cubic-bezier(.2,.75,.25,1)}.linked-outline line{fill:none;stroke:#be3e2d;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.goal-linked-outline line{stroke:#bd3d2c}.gesture-active .linked-outline{transition:none}
.creator-canvas{touch-action:none}.creator-cell.fixed polygon{fill:#d5b17d}.creator-cell.linked polygon{fill:#fffaf0}.creator-linked-outlines{pointer-events:none}.creator-linked-outline line{stroke:#be3e2d;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}

/* v19: shared edge colours and overlays that never change the board layout. */
:root{--tile-edge:#6b3a23;--home-edge:#aa6f39;--goal-edge:#6a3a24;--creator-edge:#744127}
.tile polygon{stroke:var(--tile-edge)}.tile.home polygon{stroke:var(--home-edge)}
.linked-outline line{stroke:var(--tile-edge)}.linked-outline.home line{stroke:var(--home-edge)}
.goal-linked-outline line{stroke:var(--goal-edge)}
#goalPreviewSvg>polygon,#fullGoalSvg>polygon{stroke:var(--goal-edge)}
.creator-cell.selected polygon,.creator-linked-outline line{stroke:var(--creator-edge)}
.creator-cell.pending polygon{stroke:#d04c2e}
.goal-dock{position:relative;height:122px;margin:0 auto 8px;max-width:1040px;isolation:isolate}
.goal-dock .goal-preview{width:100%;height:100%;margin:0}
.goal-dock .goal-preview.tutorial-hidden{display:grid;visibility:hidden}
.goal-dock .board-toast,.goal-dock .board-toast.show{position:absolute;inset:0;max-width:none;max-height:none;margin:0;padding:14px 48px 14px 16px;border:2px solid #c89558;border-radius:16px;display:flex;align-items:center;justify-content:center;transform:none;overflow:auto;transition:opacity .15s;line-height:1.5;font-size:14px;visibility:hidden;opacity:0;pointer-events:none}
.goal-dock .board-toast.show{visibility:visible;opacity:1;pointer-events:auto}
#dismissBoardToast{position:absolute;right:8px;top:8px;width:34px;height:34px;border:0;background:transparent;color:inherit;font-size:25px;border-radius:50%}
.run-controls{display:grid;max-width:940px;margin:auto}
.run-controls>.inspection-panel,.run-controls>.game-actions{grid-area:1/1;width:100%;align-self:start}
.run-controls>.inspection-panel[hidden]{display:block!important;visibility:hidden;pointer-events:none}
.run-controls>.game-actions[hidden]{display:grid!important;visibility:hidden;pointer-events:none}
.action-confirm{position:fixed;inset:auto;margin:0;box-sizing:border-box;max-width:calc(100vw - 24px);max-height:calc(100dvh - 24px);padding:12px 16px;background:#fff9eb;color:#482719;border:2px solid #9e653b;border-radius:16px;box-shadow:0 8px 30px #32180e40}
.action-confirm::backdrop{background:#32180e30}
.action-confirm strong{display:block;font-size:16px;line-height:20px}.action-confirm p{font-size:12px;line-height:16px;margin:3px 0 7px}
.confirm-actions{display:flex;justify-content:flex-end;gap:8px}
.confirm-actions button{min-height:36px;min-width:76px;padding:6px 14px;border:1px solid #ad7a4d;border-radius:9px;background:#fff9eb;color:#482719;font-size:14px}
#actionConfirmButton{background:#743b24;color:#fff9eb}
.creator-canvas-card{position:relative}
.creator-inline-message,.creator-inline-message.show{position:absolute;bottom:20px;left:20px;right:20px;height:auto;padding:10px 12px;border-radius:12px;background:#fff9ebf5;box-shadow:0 3px 15px #49291b30;pointer-events:none;visibility:hidden;opacity:0}
.creator-inline-message.show{visibility:visible;opacity:1}
.game-stage.tutorial-game{display:block}
.goal-dock.tutorial-dock{height:210px}
.goal-dock #tutorialPanel{position:absolute;inset:0;width:100%;height:100%;margin:0;padding:12px 14px;grid-template-columns:34px 1fr;gap:6px;box-sizing:border-box;overflow:auto;z-index:8}
.goal-dock #tutorialPanel h3{font-size:15px}.goal-dock #tutorialPanel p{font-size:12px;line-height:1.4}.goal-dock #tutorialPanel .guide-avatar{width:30px;height:30px}
.goal-dock #tutorialPanel button{min-height:32px;padding:6px}
.goal-dock.preview-lesson .goal-preview{height:96px}
.goal-dock.preview-lesson .goal-preview svg{height:78px}
.goal-dock.preview-lesson #tutorialPanel{top:102px;height:108px;grid-template-columns:1fr auto;padding:7px 10px}
.goal-dock.preview-lesson #tutorialPanel .guide-avatar{display:none}
.goal-dock.preview-lesson #tutorialPanel button{grid-column:auto;align-self:center}
.goal-dock.preview-lesson #tutorialPanel #tutorialStep{display:none}
@media(max-width:700px){.goal-dock{height:128px;margin-bottom:7px}.goal-dock .board-toast{font-size:12px}.goal-dock .goal-preview{height:100%}.action-confirm{padding:10px 14px}}
.creator-library{margin:0 0 16px;padding:14px 18px}.creator-library summary{cursor:pointer;font-weight:800}.creator-library summary span{color:#8b6548;margin-left:8px}.creator-library p{font-size:12px;color:#80644e}.creator-library #draftList{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:8px;margin-bottom:12px}.draft-item{padding:10px 12px;border:1px solid #b88753;border-radius:10px;background:#fff9eb;color:#482719;text-align:left}.draft-item strong,.draft-item small{display:block}.draft-item small{font-size:11px;color:#80644e;margin-top:5px}