:root{color-scheme:light;--ink:#172033;--muted:#667085;--line:#d7ddea;--brand:#6246ea;--brand2:#8e6cff;--ok:#087a55;--bad:#b42318;--panel:#fff;--soft:#f5f3ff}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#f8f7ff,#eef2f8 70%);color:var(--ink);font:15px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif}.shell{max-width:1180px;margin:auto;padding:28px 18px 64px}.back{color:#5747b9;text-decoration:none}.hero{padding:24px 0 18px}.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.08;margin:10px 0}.hero p{max-width:820px;color:var(--muted);font-size:17px}.badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:#ece8ff;color:#4d3db0;font-weight:750}.layout{display:grid;grid-template-columns:minmax(320px,430px) 1fr;gap:18px}.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 10px 30px #1e293b0c}.card h2{margin:0 0 12px}.drop{display:block;border:2px dashed #a99de8;border-radius:16px;padding:28px 16px;text-align:center;background:var(--soft);cursor:pointer}.drop.drag{background:#e8e2ff;border-color:var(--brand)}.drop input{display:block;margin:12px auto 0;max-width:100%}.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-weight:700}.field select,.field input[type=url],.field input[type=number]{width:100%;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff}.range{display:grid;grid-template-columns:1fr 44px;gap:8px;align-items:center}.range input{width:100%}.actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}button{border:1px solid var(--line);border-radius:10px;padding:11px 14px;background:#fff;font-weight:750;cursor:pointer}button.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;border:0}button:disabled{opacity:.45;cursor:not-allowed}.status{margin-top:12px;padding:11px 12px;border-radius:10px;background:#f2f4f7}.status.ok{background:#ecfdf3;color:var(--ok)}.status.bad{background:#fff1f0;color:var(--bad)}.progress{height:8px;background:#ebeef4;border-radius:99px;overflow:hidden;margin-top:12px}.progress i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--brand),#ef62b6);transition:width .2s}.muted{color:var(--muted);font-size:13px}.analysis{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.analysis span,.analysis b{border:1px solid var(--line);border-radius:999px;padding:5px 9px;background:#fff}.viewer{position:relative;min-height:360px;background:#151923;border-radius:16px;overflow:hidden;display:grid;place-items:center}.viewer img{display:block;max-width:100%;max-height:70vh;object-fit:contain}.result-wrap{position:absolute;inset:0;display:grid;place-items:center;overflow:hidden;clip-path:inset(0 50% 0 0)}.compare-control{display:flex;align-items:center;gap:10px;margin-top:12px}.compare-control input{flex:1}.notice{margin-top:18px;border-left:4px solid #f3a712;background:#fff9e8;padding:13px 15px;border-radius:8px}.seo{margin-top:22px}.seo h2{margin-top:0}.seo li{margin:5px 0}@media(max-width:850px){.layout{grid-template-columns:1fr}.viewer{min-height:280px}.grid{grid-template-columns:1fr}}