.draw-board[data-v-54c47ff5]{display:flex;flex-direction:column;gap:12px;max-width:800px;margin:0 auto;padding:16px}.toolbar[data-v-54c47ff5]{display:flex;gap:8px}.btn[data-v-54c47ff5]{padding:8px 16px;border-radius:8px;border:1px solid #e5e7eb;background:#fff;cursor:pointer;font-size:14px}.btn[data-v-54c47ff5]:hover:not(:disabled){background:#f3f4f6}.btn[data-v-54c47ff5]:disabled{opacity:.6;cursor:not-allowed}.btn-clear[data-v-54c47ff5]{color:#6b7280}.btn-recognize[data-v-54c47ff5]{color:#2563eb;border-color:#2563eb;background:#eff6ff}.btn-recognize[data-v-54c47ff5]:hover:not(:disabled){background:#dbeafe}.canvas-wrap[data-v-54c47ff5]{position:relative;width:100%;min-height:300px;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden;background:#fff}.canvas-loading[data-v-54c47ff5]{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#ffffffd9;z-index:1}.loading-spinner[data-v-54c47ff5]{width:40px;height:40px;border:3px solid #e5e7eb;border-top-color:#2563eb;border-radius:50%;animation:spin-54c47ff5 .8s linear infinite}.loading-text[data-v-54c47ff5]{font-size:14px;color:#64748b}@keyframes spin-54c47ff5{to{transform:rotate(360deg)}}.btn-loading[data-v-54c47ff5]{display:inline-flex;align-items:center;gap:6px}.btn-spinner[data-v-54c47ff5]{width:14px;height:14px;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;animation:spin-54c47ff5 .8s linear infinite}.canvas[data-v-54c47ff5]{display:block;width:100%;height:100%;min-height:300px;touch-action:none}.error[data-v-54c47ff5]{color:#dc2626;font-size:14px;margin:0}.hint[data-v-54c47ff5]{color:#6b7280;font-size:13px;margin:0}.app[data-v-0d74cb47]{min-height:100vh;min-height:100dvh;background:linear-gradient(180deg,#f8fafc,#f1f5f9);padding-bottom:2rem;position:relative}.rotate-prompt[data-v-0d74cb47]{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:linear-gradient(180deg,#f8fafc,#e2e8f0)}.rotate-icon[data-v-0d74cb47]{font-size:4rem;color:#94a3b8;animation:rotate-hint-0d74cb47 2s ease-in-out infinite}.rotate-text[data-v-0d74cb47]{font-size:1rem;color:#64748b;margin:0}@keyframes rotate-hint-0d74cb47{0%,to{transform:rotate(-30deg)}50%{transform:rotate(30deg)}}.header[data-v-0d74cb47]{text-align:center;padding:24px 16px 16px}.header h1[data-v-0d74cb47]{font-size:1.5rem;font-weight:700;color:#1e293b;margin:0 0 8px}.header p[data-v-0d74cb47]{font-size:.875rem;color:#64748b;margin:0}