:root{--bg: #f5f5f7;--card: #ffffff;--text: #1d1d1f;--text-muted: #86868b;--shadow: 0 1px 3px rgba(0,0,0,.06), 0 8px 24px rgba(0,0,0,.04)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}#app{min-height:100vh}.gallery-header{padding:3rem 2rem 1rem;text-align:center}.gallery-header h1{margin:0 0 .4rem;font-size:1.8rem;font-weight:600}.gallery-header p{margin:0;color:var(--text-muted)}.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;padding:1.5rem 2rem 3rem;max-width:1200px;margin:0 auto}@media (max-width: 900px){.gallery-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 560px){.gallery-grid{grid-template-columns:1fr}}.card{display:block;border:none;background:var(--card);border-radius:16px;padding:0;cursor:pointer;box-shadow:var(--shadow);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;text-align:left;font:inherit;color:inherit}.card:hover{transform:translateY(-4px)}.card__stage{width:100%;aspect-ratio:1 / 1}.card__canvas{width:100%;height:100%;display:block}.card__label{padding:1rem 1.1rem 1.2rem}.card__name{font-weight:600;font-size:1.05rem}.card__desc{margin-top:.25rem;color:var(--text-muted);font-size:.9rem}.card--placeholder{cursor:default}.card--placeholder:hover{transform:none}.card--placeholder .card__stage{display:grid;place-items:center;border:2px dashed #d2d2d7;border-radius:0;color:#c7c7cc}.placeholder-mark{font-size:3rem;font-weight:200}.viewer-overlay{display:none}.viewer-overlay.open{display:block;position:fixed;inset:0;z-index:100;background:#00000073;backdrop-filter:blur(4px)}.viewer-panel{position:absolute;inset:4vh 4vw;background:var(--card);border-radius:20px;display:grid;grid-template-columns:1fr 300px;grid-template-rows:1fr auto;overflow:hidden}.viewer-stage{position:relative;grid-row:1;background:#fafafa}.viewer-stage canvas{display:block}.viewer-progress{position:absolute;inset:0;display:grid;place-items:center;color:var(--text-muted)}.viewer-sidebar{grid-row:1;padding:2rem 1.6rem;border-left:1px solid #ececef;overflow:auto}.viewer-sidebar h2{margin:0 0 .6rem;font-size:1.4rem}.viewer-desc{color:var(--text-muted);line-height:1.6}.viewer-meta{display:flex;justify-content:space-between;padding:.7rem 0;border-bottom:1px solid #f0f0f3;font-size:.92rem}.viewer-meta span{color:var(--text-muted)}.viewer-controls{grid-column:1 / -1;display:flex;gap:.6rem;padding:1rem 1.6rem;border-top:1px solid #ececef}.viewer-controls button{font:inherit;padding:.5rem 1rem;border:1px solid #d2d2d7;background:#fff;border-radius:10px;cursor:pointer}.viewer-controls button:hover{background:#f5f5f7}.viewer-close{position:absolute;top:1rem;right:1rem;z-index:2;width:2.4rem;height:2.4rem;border:none;background:#ffffffe6;border-radius:50%;font-size:1.4rem;cursor:pointer}@media (max-width: 720px){.viewer-panel{grid-template-columns:1fr}.viewer-sidebar{display:none}}