@font-face{font-family:RenyunTitle;src:url('assets/fonts/ZCOOLQingKeHuangYou-Regular.ttf') format('truetype');font-display:swap}
:root{color-scheme:light;--ink:#141414;--yellow:#ffbd45;--green:#2aac80;--paper:#f7f6f1}
*{box-sizing:border-box} [hidden]{display:none!important}
body{margin:0;color:var(--ink);background:var(--paper);font-family:system-ui,-apple-system,'PingFang SC',sans-serif}
button,input,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button,select{cursor:pointer}button{color:inherit}
button,a.primary{min-height:44px;border:2px solid var(--ink);border-radius:10px;background:#fff;padding:8px 12px;font-weight:750;box-shadow:2px 2px 0 var(--ink)}
button:disabled{opacity:.35;cursor:default;box-shadow:none}button:not(:disabled):active,a.primary:active{transform:translate(2px,2px);box-shadow:none}
a{color:inherit;text-decoration:none}.primary,button.primary{background:var(--yellow)}
:focus-visible{outline:3px solid #0c805a;outline-offset:3px}input[type=range]{accent-color:#157f5e}
.studio-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px max(20px,env(safe-area-inset-right)) 12px max(20px,env(safe-area-inset-left));border-bottom:3px solid var(--ink);background:var(--yellow)}
.studio-header h1{margin:0;font:32px/1.2 RenyunTitle,sans-serif;letter-spacing:1px}.back{font-weight:800;white-space:nowrap}.save{background:#fff!important;white-space:nowrap}
.studio-layout{max-width:1420px;margin:auto;display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:24px;padding:24px}
.workspace{min-width:0}.canvas-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px}.canvas-toolbar label{font-size:13px;font-weight:750;display:flex;align-items:center;gap:8px}
select{max-width:100%;border:2px solid var(--ink);border-radius:10px;background:#fff;padding:8px;min-height:42px;color:var(--ink)}
.history-tools{display:flex;gap:8px}.history-tools button{width:44px;font-size:23px;line-height:1;padding:4px}
.board-wrap{position:relative;width:100%;margin:auto;border:3px solid var(--ink);border-radius:5px;overflow:hidden;box-shadow:6px 6px 0 var(--ink);background:repeating-conic-gradient(#dce3df 0 25%,#fff 0 50%) 0 0/24px 24px}
#board{display:block;width:100%;height:auto;touch-action:none;cursor:grab}#board:active{cursor:grabbing}
.empty-canvas{position:absolute;left:10%;right:10%;top:40%;margin:0;text-align:center;pointer-events:none;font:32px/1.25 RenyunTitle,sans-serif;color:#365a49}.empty-canvas span{font:14px/2 system-ui,sans-serif}
.canvas-caption{display:flex;justify-content:space-between;gap:10px;margin:14px 0 0;font-size:11px;color:#5a625b}.gesture-hint{margin:8px 0 16px;text-align:center;font-size:12px;color:#5a625b}
.selection-panel{padding:16px;background:#fff;border:2px solid var(--ink);border-radius:14px;box-shadow:3px 3px 0 var(--ink)}.selection-heading{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:12px}.selection-heading strong{font-size:14px}.selection-heading span{font-size:11px;color:#666;white-space:nowrap}
.sliders{display:grid;gap:10px}.sliders label{display:grid;grid-template-columns:34px 1fr 44px;gap:10px;align-items:center;font-size:12px;font-weight:700}.sliders input{min-width:0;width:100%;margin:0;min-height:30px}.sliders output{text-align:right}
.object-tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.object-tools button{font-size:12px;flex:1;white-space:nowrap;padding:8px}.danger{color:#a32730!important}
.library{align-self:start;border:2px solid var(--ink);border-radius:16px;background:#fff;overflow:hidden;min-width:0}.library-tabs{display:flex;background:#e9f1e9;border-bottom:2px solid var(--ink);position:sticky;top:0;z-index:3}.library-tabs button{flex:1;border:0;border-radius:0;box-shadow:none;background:transparent;padding:13px 5px;white-space:nowrap}.library-tabs button[aria-selected=true]{background:var(--ink);color:#fff}
.library section{padding:14px}.library-filters{display:flex;gap:8px}.library-filters input{width:0;flex:1;min-width:0;border:2px solid var(--ink);border-radius:10px;padding:9px;font-size:13px}.library-filters select{max-width:110px;font-size:12px}
.result-count,.library-note{font-size:11px;color:#626862;line-height:1.6}.result-count{margin:10px 0}.sticker-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.sticker-grid button{min-width:0;box-shadow:none;border-color:#d8ded8;padding:7px 4px;font-weight:500;background:#fafbf8}.sticker-grid button:hover{border-color:var(--green);background:#f0f8ef}.sticker-grid img{width:100%;height:76px;object-fit:contain;pointer-events:none}.sticker-grid span{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:10px;margin-top:5px}.load-more{display:block;width:100%;margin-top:12px;box-shadow:none;background:#f1f5ef}
.background-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.background-grid button{padding:5px;box-shadow:none;border-color:#d8ded8;overflow:hidden}.background-grid button[aria-pressed=true]{border-color:var(--ink);background:var(--yellow)}.background-grid img,.background-grid i{display:block;aspect-ratio:1.4;width:100%;object-fit:cover;border-radius:5px;background:#fff}.background-grid span{display:block;font-size:11px;margin:5px}.background-grid .transparent{background:repeating-conic-gradient(#dce3df 0 25%,#fff 0 50%) 0 0/18px 18px}
.layers-list{display:grid;gap:8px}.layers-list button{display:flex;align-items:center;gap:10px;text-align:left;box-shadow:none;border-color:#d8ded8;font-size:12px}.layers-list button[aria-pressed=true]{background:#e5f5e9;border-color:var(--green)}.layers-list img{width:42px;height:42px;object-fit:contain}.clear-canvas{width:100%;margin-top:18px;box-shadow:none;color:#a32730}
.status-message{position:fixed;z-index:100;bottom:max(22px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:max-content;max-width:calc(100vw - 32px);padding:12px 18px;background:var(--ink);color:#fff;border-radius:12px;box-shadow:3px 3px 0 var(--yellow);font-size:13px;line-height:1.5;text-align:center}
dialog{max-width:min(640px,calc(100% - 24px));max-height:90dvh;overflow:auto;border:3px solid var(--ink);border-radius:18px;padding:20px;background:#fff}dialog::backdrop{background:#141414aa}dialog header{display:flex;align-items:center;justify-content:space-between;gap:18px}dialog h2{font:28px RenyunTitle,sans-serif;margin:0}dialog header button{font-size:26px;min-width:44px}dialog p{font-size:13px;line-height:1.6}dialog img{display:block;max-width:100%;max-height:55dvh;margin:0 auto 18px;object-fit:contain;-webkit-touch-callout:default;touch-action:auto;user-select:auto}dialog a{display:inline-flex;align-items:center;justify-content:center}dialog #shareExport{margin-left:10px}
@media(min-width:900px){.workspace{max-width:900px}.board-wrap{box-sizing:content-box;max-height:68vh;width:auto;max-width:calc(100% - 6px);aspect-ratio:var(--aspect,1)}#board{height:100%;width:100%;object-fit:contain}.library{max-height:calc(100vh - 122px);overflow:auto;position:sticky;top:98px}}
@media(max-width:899px){.studio-layout{grid-template-columns:minmax(0,1fr);gap:18px;padding:16px 14px max(28px,env(safe-area-inset-bottom))}.studio-header{padding:10px 14px;gap:8px}.studio-header h1{font-size:27px}.studio-header .back{font-size:12px}.save{font-size:12px;padding:8px 10px}.board-wrap{max-width:520px}.sticker-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.sticker-grid img{height:70px}.background-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.library-tabs button{font-size:13px}.selection-panel{padding:12px}.canvas-caption{font-size:10px}}
@media(max-width:359px){.studio-header h1{font-size:24px}.studio-header .back span{display:none}.sticker-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.object-tools{gap:6px}.object-tools button{font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

.redraw-mode{width:100%;margin:0 0 12px;box-shadow:none;background:#edf7ee;font-size:12px}.redraw-mode[aria-pressed=true]{background:var(--yellow)}

/* 横放手机时画布完整放进可见高度，素材在侧边滚动，画幅和草稿都不变。 */
@media(orientation:landscape) and (min-width:560px) and (max-width:1100px) and (max-height:540px){
  .studio-layout{grid-template-columns:minmax(0,1fr) clamp(240px,32vw,320px);gap:16px;padding:14px;}
  .board-wrap{box-sizing:content-box;max-height:max(120px,calc(100dvh - 162px));width:auto;max-width:calc(100% - 6px);aspect-ratio:var(--aspect,1);}
  #board{height:100%;width:100%;object-fit:contain;}
  .library{position:sticky;top:82px;max-height:max(160px,calc(100dvh - 98px));overflow:auto;}
  .sticker-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .sticker-grid img{height:58px;}
  .background-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .library-filters{flex-wrap:wrap;}
  .library-filters input{flex-basis:100%;}
  .library-filters select{max-width:100%;}
}