:root{--ink:#493b30;--muted:#94816d;--yellow:#f9ca4d;--yellow-dark:#d39924;--cream:#fffaf0;--line:#ebdfc9;--green:#6a9273;--radius:28px;font-family:ui-rounded,'PingFang SC','Microsoft YaHei',system-ui,sans-serif;color:var(--ink);background:var(--cream);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;min-height:100dvh;display:flex;flex-direction:column}button,select{font:inherit;color:inherit}button{cursor:pointer;border:0;touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,select:focus-visible{outline:4px solid #78a1ba;outline-offset:4px}button:active{transform:translateY(2px)}button:disabled{opacity:.45;cursor:default}header{height:95px;padding:18px 4vw;display:flex;justify-content:space-between;align-items:center;gap:14px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-weight:900;font-size:26px}.brand img{width:54px;height:54px}.brand small{display:block;font-size:12px;letter-spacing:3px;font-weight:500;color:var(--muted);margin-top:4px}.header-right{display:flex;align-items:center;gap:10px}#save-status{color:var(--muted);font-size:13px;margin-right:10px}.icon-button{background:#f1e9d9;border-radius:18px;padding:13px 17px;min-height:48px;font-size:14px}main{width:100%;max-width:1600px;padding:0 4vw 18px;margin:auto;flex:1;display:grid;grid-template-columns:minmax(0,1.7fr) minmax(350px,1fr);gap:24px;align-content:start}.world{border-radius:34px;background:#efefdd;position:relative;overflow:hidden;border:1px solid #e7e8cf;min-width:0}.world-heading{position:absolute;top:22px;left:25px;z-index:2}.eyebrow{font-size:12px;letter-spacing:3px;color:var(--muted);font-weight:700;margin:0 0 8px}.world-heading h1{font-size:28px;margin:0;font-weight:900}.world svg.scene{display:block;width:100%;height:auto;min-height:405px;max-height:570px}.world-bottom{background:#f7f5e6;border-top:1px solid #dcdcc6;padding:15px 20px;display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:89px}.world-bottom p{font-size:14px;line-height:1.7;margin:0;color:#8b856b}.world-bottom strong{color:var(--ink)}.recipe-list{display:flex;gap:9px}.recipe{width:64px;height:58px;border-radius:17px;background:#fffbed;outline:2px solid transparent;display:grid;place-items:center}.recipe.active{outline-color:var(--yellow-dark);background:#fff1b7}.recipe svg{width:45px;height:40px}.panel{padding:25px 26px;border:1px solid var(--line);border-radius:var(--radius);background:#fffdf7;box-shadow:0 8px 20px #9e7a4510;display:flex;flex-direction:column;gap:15px;min-width:0}.panel h2{margin:0;font-size:27px}.panel p{line-height:1.65;margin:0;color:#8c7966}.badge{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;letter-spacing:1px;border-radius:10px;background:#f1ecd8;color:#92815b;padding:7px 10px;width:max-content}.badge:before{content:'';width:6px;height:6px;background:#83a47a;border-radius:100%}.tabs{display:flex;gap:7px;background:#f3eedf;padding:5px;border-radius:16px}.tabs button{flex:1;border-radius:12px;background:transparent;padding:11px 6px;font-size:14px}.tabs button.active{background:white;box-shadow:0 2px 5px #70522510}.order-card{background:#fff4ce;border:1px dashed #e4c467;border-radius:20px;padding:17px 19px}.order-card p{color:var(--ink);font-size:19px;font-weight:700;line-height:1.7}.order-card .read{float:right;background:#fffbed;border-radius:12px;padding:8px 11px;font-size:14px}.equation{display:flex;align-items:center;justify-content:center;gap:12px;font-size:34px;font-weight:850;letter-spacing:1px;margin:8px 0}.answer{background:white;border:2px solid #d3bc75;border-radius:13px;min-width:65px;max-width:140px;height:51px;display:grid;place-items:center}.keypad{display:grid;grid-template-columns:repeat(6,1fr);gap:7px}.keypad button{min-height:48px;border-radius:12px;background:#f0ebdf;font-size:22px;font-weight:700}.primary,.secondary{border-radius:16px;min-height:54px;padding:13px 17px;font-weight:800;font-size:18px}.primary{background:var(--yellow);box-shadow:0 4px 0 #e0ad36}.secondary{background:#efede2;font-size:16px}.actions{display:flex;gap:9px}.actions>*{flex:1}.helper{font-size:13px!important;color:var(--muted)!important}.pack-controls{display:flex;gap:8px}.pack-controls button{flex:1;background:#f0eadc;border-radius:13px;padding:12px 6px;min-height:56px;font-weight:700;font-size:19px;touch-action:none}.drop-zone{background:#f7f4e8;border:2px dashed #d3c6ac;border-radius:16px;padding:12px;min-height:75px;font-size:14px;text-align:center}.drop-zone strong{display:block;color:var(--ink);font-size:23px;margin:5px}.drop-zone button{padding:8px 12px;border-radius:10px;background:white;font-size:13px}.drop-zone.drag-over{background:#fff0bc;border-color:#d59b24}.feedback{border-radius:14px;padding:12px 15px;background:#edf1e2;color:#52705b!important;font-size:16px;min-height:49px}.feedback.warning{background:#fff0d8;color:#966437!important}.free-buttons{display:grid;grid-template-columns:1fr 1fr;gap:10px}.free-buttons button{min-height:91px;border-radius:18px;background:#f4eeda;padding:14px;text-align:left;font-weight:700;font-size:17px}.free-buttons button small{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:8px}.free-buttons button:first-child{background:#fff0b5}.character-note{padding:16px;border-radius:18px;background:#f2f1e5;display:flex;gap:14px;align-items:center}.character-note svg{width:65px;flex-shrink:0}.character-note p{font-size:15px}.story-list{display:grid;gap:8px}.story-list button{padding:13px 15px;text-align:left;border-radius:14px;background:#f1eddf;font-size:16px;font-weight:700;min-height:60px}.story-list button small{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:4px}.story-list button.active{background:#fff0b5;box-shadow:inset 3px 0 #d59b24}.theater-world{background:#ecf0e1;padding:25px;display:flex;flex-direction:column;gap:14px;min-height:580px}.theater-world h1{font-size:29px;margin:0}.number-stage{background:#fffdf3;border-radius:23px;padding:23px;min-height:315px;display:flex;flex-direction:column;gap:17px;justify-content:center;align-items:center}.number-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;width:100%}.number-label{font-weight:800;font-size:22px;color:#806c4d}.ten-box{width:65px;background:#f6d576;border:2px solid #b88d32;border-radius:11px;padding:7px;display:grid;grid-template-columns:repeat(2,1fr);gap:2px;position:relative;animation:pop .35s ease both}.ten-box>i{height:13px;border-radius:6px;background:#fff9dc;border:1px solid #d6b658}.ten-box>span{position:absolute;top:-12px;right:-7px;border-radius:10px;background:#a87e2d;color:white;padding:2px 5px;font-size:12px}.single-bun{width:29px;height:26px}.single-bun svg{width:100%;height:100%}.number-summary{font-size:17px;color:#8b795a}.number-stage .group-row{display:flex;gap:10px}.number-stage .group{padding:10px;background:#f1e4c5;border:2px solid #ddca9a;border-radius:12px;display:flex;gap:3px}.narration{background:#fff3c8;border-radius:21px;padding:18px 22px;min-height:92px;font-size:22px;font-weight:700;line-height:1.65}.step-controls{display:flex;gap:10px}.step-controls button{flex:1}.step-count{font-size:13px;color:var(--muted);margin-left:auto}.decor-choice{display:flex;gap:8px;flex-wrap:wrap}.decor-choice button{padding:15px;border-radius:15px;background:#f2ecdc;font-size:16px;min-height:53px}.decor-choice button.active{background:#ffe7a0;box-shadow:inset 0 0 0 2px #d5a63f}.label{font-size:14px;font-weight:700;color:#8f7c60}.souvenir{padding:17px;background:#eff1e5;border-radius:19px;font-size:15px;line-height:1.8}.souvenir strong{font-size:28px;margin-right:4px}nav{display:flex;align-items:center;justify-content:center;gap:12px;padding:14px 20px 20px;padding-bottom:max(20px,env(safe-area-inset-bottom));border-top:1px solid var(--line);background:#fffaf0}nav button{padding:12px 27px;border-radius:17px;font-size:17px;background:transparent;color:#99866b;min-height:60px;display:flex;gap:10px;align-items:center;font-weight:700}nav button span{font-size:26px}nav button.active{background:#fbe7a9;color:#715929}.fine{font-size:12px!important;line-height:1.7;color:var(--muted)!important}dialog{border:1px solid var(--line);border-radius:28px;box-shadow:0 20px 70px #60451d30;background:#fffaf0;color:var(--ink);max-width:min(540px,90vw);padding:30px}dialog::backdrop{background:#6b624365;backdrop-filter:blur(5px)}dialog h2{margin-top:0}dialog p{line-height:1.8}dialog label{display:block;margin:20px 0}dialog select{padding:14px;border:1px solid var(--line);border-radius:12px;display:block;width:100%;margin-top:9px;background:white;font-size:17px}.close{float:right;background:transparent;font-size:30px}.import-label{display:inline-block;background:#eee8d8;padding:15px;border-radius:13px;font-size:14px}.import-label input{display:block;max-width:100%;margin-top:8px}#welcome{text-align:center;width:500px;padding:30px 35px}#welcome h1{font-size:34px;margin:15px 0}#welcome .primary{width:100%;margin:12px 0}.welcome-art{height:180px}.welcome-art svg{height:100%;max-width:100%}#toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%) translateY(15px);border-radius:17px;background:#493c31;color:#fff8db;padding:15px 24px;font-size:18px;z-index:5;opacity:0;pointer-events:none;transition:.2s}#toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}.steam{animation:steam 3s ease-in-out infinite;transform-box:fill-box;transform-origin:center}.bob{animation:bob 3s ease-in-out infinite;transform-box:fill-box;transform-origin:center}.fun-pop{animation:pop .35s ease}.drag-token{position:fixed;z-index:8;pointer-events:none;background:#f6d576;color:#614b20;border:2px solid #d4a042;border-radius:16px;width:64px;height:55px;display:grid;place-items:center;font-weight:800;font-size:23px;box-shadow:0 8px 20px #78632733}.rotate-tip{display:none}
@keyframes steam{0%,100%{opacity:.25;transform:translateY(4px)}50%{opacity:.7;transform:translateY(-9px)}}@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}@keyframes pop{0%{transform:scale(.85)}65%{transform:scale(1.07)}100%{transform:scale(1)}}
.order-panel{gap:10px;padding:22px}.order-panel .order-card{padding:12px 15px}.order-panel .order-card p{font-size:18px}.order-panel .tabs button{padding:10px 6px}.order-panel .equation{margin:3px 0}.order-panel .keypad button{min-height:43px}.order-panel .pack-controls button{min-height:46px;padding:9px 6px}.order-panel .drop-zone{min-height:65px;padding:9px;display:flex;gap:7px;align-items:center;justify-content:center;flex-wrap:wrap}.order-panel .drop-zone strong{display:inline;font-size:20px;margin:0 5px}.order-panel .drop-zone button{padding:7px 9px}.hint-visual{padding:12px;background:#fffdf3;border:1px solid #e7dbbd;border-radius:13px;text-align:center}.hint-visual .ten-box{width:44px;padding:5px;gap:1px}.hint-visual .ten-box>i{height:8px}.hint-visual .single-bun{width:22px;height:20px}.hint-visual .number-row{gap:6px}.hint-visual .number-summary{font-size:13px;margin:6px 0}.order-panel .feedback .secondary{min-height:40px;padding:8px 12px;font-size:14px;margin-top:8px}.served-reaction{animation:pop .6s ease}
.difficulty-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:7px}.difficulty-grid button{background:#f1edde;border:2px solid transparent;border-radius:12px;text-align:left;padding:8px 12px;font-size:15px;font-weight:800;min-height:57px}.difficulty-grid button small{display:block;margin-top:3px;color:#938168;font-size:11px;font-weight:500}.difficulty-grid button.active{background:#fff0b8;border-color:#d9ad44}.stage-progress{display:flex;align-items:center;gap:12px;font-size:12px;color:#948165}.stage-progress>div{height:6px;flex:1;background:#ece5cf;border-radius:6px;overflow:hidden}.stage-progress i{display:block;height:100%;background:#ddba58;border-radius:6px}.guide-stage{background:#fffdf6;border:1px solid #e6d9ba;border-radius:19px;padding:20px;min-height:145px;display:flex;flex-direction:column;justify-content:center;text-align:center}.guide-stage .number-summary{margin-top:15px}.guide-button{position:relative;width:100%;margin:16px 0}.tap-hand{position:absolute;right:14px;font-size:30px;animation:hand-tap 1.2s ease-in-out infinite}.guide-skip{width:100%;font-size:14px;min-height:44px}#howto{text-align:center;width:490px}#stage-summary{text-align:center;width:530px}.summary-art{height:112px}.summary-art svg{height:100%}.summary-kinds{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin:15px 0}.summary-kinds span{background:#eee9d8;padding:9px 13px;border-radius:12px;font-size:14px}.summary-numbers{display:flex;justify-content:center;gap:15px;margin:15px 0}.summary-numbers>div{background:#fff0c2;padding:13px 20px;border-radius:16px}.summary-numbers strong{display:block;font-size:33px}.summary-numbers span{font-size:13px;color:#8d7749}@keyframes hand-tap{0%,100%{transform:translateY(-4px)}50%{transform:translateY(4px)}}
.packed-boxes{display:flex;justify-content:center;gap:4px;flex-wrap:wrap;flex-basis:100%}.packed-boxes i{font-style:normal;font-size:12px;padding:5px 8px;background:#ead6a4;border-radius:7px}.install-note{background:#fff0bd;border-radius:17px;padding:16px;font-size:14px;margin:17px 0}.install-note p{font-size:13px;margin-bottom:0}.group-row{flex-wrap:wrap;justify-content:center}body{padding-top:env(safe-area-inset-top);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
@media(min-width:1400px){main{padding-left:6vw;padding-right:6vw}.panel{gap:19px}.order-panel{gap:10px}.world svg.scene{max-height:620px}}
@media(max-width:1050px){header{height:80px;padding:13px 3vw}main{padding:0 3vw 15px;gap:16px;grid-template-columns:minmax(0,1.4fr) minmax(330px,1fr)}.panel{padding:20px;gap:12px}.world-heading h1{font-size:23px}.world-heading{left:20px;top:18px}.world svg.scene{min-height:390px}.world-bottom{padding:12px;gap:6px}.recipe{width:48px}.world-bottom p{font-size:12px}nav button{padding:10px 15px;font-size:15px}.theater-world{padding:20px;min-height:570px}}
@media(max-width:750px) and (orientation:portrait){#save-status{display:none}.brand{font-size:21px}.brand small{font-size:10px;letter-spacing:1px}.brand img{width:44px;height:44px}.header-right{gap:5px}.icon-button{padding:10px;font-size:12px}main{grid-template-columns:1fr}.world svg.scene{min-height:0}.world-heading h1{font-size:24px}.world-bottom p{font-size:14px}.recipe{width:57px}.panel{padding:20px}nav{position:sticky;bottom:0;padding:8px;gap:0}nav button{padding:8px 7px;flex:1;flex-direction:column;gap:0;font-size:12px;min-height:65px}nav button span{font-size:23px}.theater-world{min-height:520px}.number-stage{min-height:240px}.narration{font-size:19px}#toast{width:85%;font-size:16px;bottom:85px}.world-heading .eyebrow{font-size:10px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}