:root{--bg: #f5f5f7;--card: #fff;--ink: #1c1c1e;--muted: #6e6e73;--accent: #0071e3;--line: #d2d2d7}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}header.app{position:sticky;top:0;z-index:10;padding:12px 16px;background:#f5f5f7eb;backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}header.app h1{font-size:17px;margin:0;font-weight:600}header.app .meta{font-size:12px;color:var(--muted);margin-top:2px}main{padding:14px 16px;max-width:820px;margin:0 auto}.search{width:100%;padding:13px 14px;font-size:16px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--ink)}.group-title{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin:18px 2px 8px}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;cursor:pointer;display:flex;flex-direction:column}.card:active{transform:scale(.985)}.card .thumb{aspect-ratio:4 / 3;background:#fff center / contain no-repeat;border-bottom:1px solid var(--line)}.card .cap{padding:9px 10px}.card .cap .ti{font-size:14px;font-weight:600;line-height:1.2}.card .cap .ty{font-size:11px;color:var(--muted);text-transform:uppercase;margin-top:3px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;border:0;border-radius:12px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none}.btn.sec{background:var(--card);color:var(--ink);border:1px solid var(--line)}.toolbar{position:sticky;top:0;z-index:10;display:flex;gap:8px;align-items:center;padding:10px 12px;background:#f5f5f7eb;backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.toolbar .ti{font-size:15px;font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.viewer{padding:10px}.viewer img{max-width:100%;height:auto;display:block;margin:0 auto;border-radius:6px}.viewer canvas{max-width:100%;height:auto;display:block;margin:0 auto 10px;box-shadow:0 1px 6px #0000001f}.state{padding:40px 16px;text-align:center;color:var(--muted)}.state h2{color:var(--ink);font-size:18px;margin:0 0 10px}.spinner{width:28px;height:28px;border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 14px}@keyframes spin{to{transform:rotate(360deg)}}.scan-cta{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:54px;margin-bottom:12px;padding:14px;border:0;border-radius:14px;background:var(--accent);color:#fff;font-size:17px;font-weight:700;cursor:pointer}.scan-cta:active{transform:scale(.99)}.docs{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}.docs .btn{width:100%}.scan-overlay{position:fixed;inset:0;z-index:50;background:#000;display:flex;flex-direction:column}.scan-bar{display:flex;align-items:center;gap:10px;padding:10px 12px;background:#111;color:#fff}.scan-bar .scan-hint{font-size:13px;color:#cfcfd2}.scan-cam{position:relative;flex:1;overflow:hidden}.scan-cam video{width:100%;height:100%;object-fit:cover}.scan-frame{position:absolute;inset:18% 12%;border:3px solid rgba(0,113,227,.9);border-radius:16px;box-shadow:0 0 0 100vmax #00000059}.scan-err{color:#ff7b72;font-size:13px;padding:10px 12px;background:#111;min-height:14px;text-align:center}.model3d-cta{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:50px;margin-bottom:12px;padding:13px;border-radius:14px;text-decoration:none;background:#1c1c1e;color:#fff;font-size:16px;font-weight:700}.model3d-cta:active{transform:scale(.99)}.modal{position:fixed;inset:0;z-index:60;background:var(--bg);display:flex;flex-direction:column}.modal-bar{position:sticky;top:0;display:flex;align-items:center;gap:10px;padding:10px 12px;background:#f5f5f7f5;backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.modal-bar .ti{font-size:15px;font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.modal-body{flex:1;overflow:auto;padding:10px}.modal-body img{max-width:100%;height:auto;display:block;margin:0 auto;border-radius:6px}.modal-body canvas{max-width:100%;height:auto;display:block;margin:0 auto 10px;box-shadow:0 1px 6px #0000001f}