*{box-sizing:border-box}
body{margin:0;background:#f5f7fb;color:#0f172a;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}
.wrap{margin:9vh auto 0;max-width:540px;padding:28px}
.panel{background:#fff;border:1px solid #dbe4ef;border-radius:8px;box-shadow:0 10px 30px rgba(15,23,42,.08);padding:24px}
h2{font-size:22px;line-height:1.35;margin:0 0 8px}
.desc{color:#475569;font-size:14px;line-height:1.7;margin:0 0 18px}
.meta{color:#64748b;font-size:12px;line-height:1.6;margin-top:16px}
.slider-box{position:relative;touch-action:none}
.slider-track{background:#e2e8f0;border-radius:999px;height:46px;overflow:hidden;position:relative}
.slider-fill{background:#9bd47b;height:100%;left:0;position:absolute;top:0;width:0}
.slider-text{align-items:center;color:#475569;display:flex;font-size:14px;height:100%;justify-content:center;position:relative}
.slider-handle{align-items:center;background:#fff;border:1px solid #cbd5e1;border-radius:6px;box-shadow:0 1px 5px rgba(15,23,42,.18);color:#64748b;cursor:grab;display:flex;height:46px;justify-content:center;left:0;position:absolute;top:0;width:52px}
.slider-handle:active{cursor:grabbing}
.challenge-button{background:#1f6feb;border:0;border-radius:6px;color:#fff;cursor:pointer;font-size:15px;font-weight:700;min-height:44px;padding:0 18px;width:100%}
.challenge-button:disabled{background:#94a3b8;cursor:not-allowed}
.captcha-box{display:grid;gap:14px}
.captcha-image-wrap{align-items:center;background:#f8fafc;border:1px solid #cbd5e1;border-radius:8px;display:flex;justify-content:center;min-height:98px;padding:8px}
.captcha-image{display:block;height:auto;image-rendering:auto;max-width:100%;width:300px}
.captcha-input{appearance:none;background:#fff;border:1px solid #cbd5e1;border-radius:6px;color:#0f172a;font-size:20px;font-weight:700;height:46px;letter-spacing:0;padding:0 14px;text-align:center;text-transform:uppercase;width:100%}
.captcha-input:focus{border-color:#1f6feb;box-shadow:0 0 0 3px rgba(31,111,235,.14);outline:0}
.captcha-input:disabled{background:#f1f5f9;color:#64748b}
.click-select-box{display:grid;gap:12px}
.click-select-prompt-wrap{align-items:center;background:#f8fafc;border:1px solid #d7e1ee;border-radius:8px;display:flex;justify-content:center;min-height:68px;padding:8px}
.click-select-prompt-image{display:block;height:auto;image-rendering:auto;max-width:100%;user-select:none;width:220px;-webkit-user-select:none}
.click-select-order{align-items:center;display:flex;gap:8px;justify-content:center;min-height:34px}
.click-select-token{align-items:center;background:#eff6ff;border:1px solid #bfdbfe;border-radius:6px;color:#0f172a;display:flex;font-size:16px;font-weight:800;height:34px;justify-content:center;line-height:1;width:34px}
.click-select-token.done{background:#dcfce7;border-color:#86efac;color:#166534}
.click-select-image-wrap{aspect-ratio:var(--click-select-ratio,17/10);background:#e2e8f0;border:1px solid #d7e1ee;border-radius:8px;overflow:hidden;position:relative;width:100%}
.click-select-image{cursor:crosshair;display:block;height:100%;object-fit:cover;user-select:none;width:100%;-webkit-user-select:none}
.click-select-layer{height:100%;left:0;pointer-events:none;position:absolute;top:0;width:100%}
.click-select-marker{align-items:center;background:#1f6feb;border:2px solid #fff;border-radius:999px;box-shadow:0 1px 5px rgba(15,23,42,.28);color:#fff;display:flex;font-size:13px;font-weight:800;height:24px;justify-content:center;line-height:1;position:absolute;transform:translate(-50%,-50%);width:24px}
.click-select-actions{display:grid;gap:10px;grid-template-columns:96px 1fr}
.challenge-button-secondary{background:#64748b}
.spatial-box{display:grid;gap:14px}
.spatial-prompt{align-items:center;background:#f8fbff;border:1px solid #d7e1ee;border-radius:8px;color:#0f172a;display:flex;font-size:15px;font-weight:700;gap:10px;line-height:1.5;margin:0 0 14px;padding:12px}
.spatial-prompt-label{background:#eef6ff;border:1px solid #bfdbfe;border-radius:6px;color:#1d4ed8;flex:0 0 auto;font-size:12px;font-weight:800;line-height:1;padding:6px 8px}
.spatial-stage{--spatial-glow-x:50%;--spatial-glow-y:28%;aspect-ratio:var(--click-select-ratio,17/11);background:#edf2f7;border:1px solid #b8c5d3;border-radius:8px;box-shadow:0 16px 34px rgba(15,23,42,.13),inset 0 0 0 1px rgba(255,255,255,.75);cursor:crosshair;overflow:hidden;position:relative;touch-action:none;width:100%}
.spatial-stage:before{background:linear-gradient(135deg,rgba(255,255,255,.24),rgba(255,255,255,0) 42%,rgba(15,23,42,.1));content:"";inset:0;pointer-events:none;position:absolute;z-index:2}
.spatial-canvas{display:block;height:100%;left:0;opacity:0;position:absolute;top:0;transition:opacity .18s ease;width:100%;z-index:1}
.spatial-webgl-ready .spatial-canvas{opacity:1}
.spatial-fallback-image{display:none;height:100%;left:0;object-fit:cover;position:absolute;top:0;width:100%;z-index:1}
.spatial-fallback .spatial-fallback-image{display:block}
.spatial-stage .click-select-layer{z-index:3}
.spatial-stage:after{border:2px solid transparent;border-radius:8px;content:"";inset:0;pointer-events:none;position:absolute;transition:border-color .15s ease,box-shadow .15s ease;z-index:4}
.spatial-selected .spatial-stage:after{border-color:#2563eb;box-shadow:inset 0 0 0 2px rgba(37,99,235,.12),0 0 0 4px rgba(37,99,235,.12)}
.spatial-error .spatial-stage:after{border-color:#ef4444;box-shadow:inset 0 0 0 2px rgba(239,68,68,.12),0 0 0 4px rgba(239,68,68,.12)}
.spatial-ok .spatial-stage:after{border-color:#22c55e;box-shadow:inset 0 0 0 2px rgba(34,197,94,.12),0 0 0 4px rgba(34,197,94,.12)}
.spatial-option-frame{align-items:flex-start;background:rgba(255,255,255,.08);border:1px solid rgba(37,99,235,.35);border-radius:7px;color:#1d4ed8;display:flex;font-size:12px;font-weight:900;justify-content:flex-start;line-height:1;padding:6px;position:absolute;text-shadow:0 1px 0 rgba(255,255,255,.75);transition:border-color .15s ease,box-shadow .15s ease}
.spatial-selected .spatial-option-frame{border-color:rgba(37,99,235,.24)}
.spatial-option-frame.selected{border-color:#2563eb;box-shadow:0 0 0 4px rgba(37,99,235,.16),inset 0 0 0 1px rgba(255,255,255,.42)}
.spatial-option-marker{background:#2563eb;border-width:3px;box-shadow:0 0 0 5px rgba(37,99,235,.18),0 12px 22px rgba(15,23,42,.28);font-size:14px;height:30px;transform:translate(-50%,-50%) perspective(700px) translateZ(28px);width:30px}
.spatial-actions{display:grid;gap:10px;grid-template-columns:96px 1fr}
.jigsaw-box{display:grid;gap:14px}
.jigsaw-stage{aspect-ratio:17/10;background:#e2e8f0;border:1px solid #d7e1ee;border-radius:8px;overflow:hidden;position:relative;width:100%}
.jigsaw-bg{display:block;height:100%;object-fit:cover;width:100%}
.jigsaw-piece{height:auto;left:0;position:absolute;top:0;width:16%;will-change:left,top}
.jigsaw-slider{position:relative;touch-action:none}
.jigsaw-track{background:#e2e8f0;border-radius:999px;height:46px;overflow:hidden;position:relative}
.jigsaw-fill{background:#9bd47b;height:100%;left:0;position:absolute;top:0;width:0}
.jigsaw-text{align-items:center;color:#475569;display:flex;font-size:14px;height:100%;justify-content:center;position:relative}
.jigsaw-handle{align-items:center;background:#fff;border:1px solid #cbd5e1;border-radius:6px;box-shadow:0 1px 5px rgba(15,23,42,.18);color:#64748b;cursor:grab;display:flex;height:46px;justify-content:center;left:0;position:absolute;top:0;width:52px}
.jigsaw-handle:active{cursor:grabbing}
.curve-box{display:grid;gap:12px}
.curve-stage{aspect-ratio:17/10;background:#e2e8f0;border:1px solid #d7e1ee;border-radius:8px;cursor:crosshair;overflow:hidden;position:relative;touch-action:none;width:100%}
.curve-image{display:block;height:100%;object-fit:cover;user-select:none;width:100%;-webkit-user-select:none}
.curve-canvas{height:100%;left:0;pointer-events:none;position:absolute;top:0;width:100%}
.curve-status{background:#f8fafc;border:1px solid #d7e1ee;border-radius:6px;color:#475569;font-size:14px;line-height:1.4;min-height:38px;padding:9px 12px;text-align:center}
@media (max-width:560px){.wrap{margin-top:6vh;padding:18px}.panel{padding:20px}.spatial-prompt{align-items:flex-start;flex-direction:column;gap:8px}.spatial-actions{grid-template-columns:88px 1fr}}