:root{--canvas:#ffffff;--parchment:#f5f5f7;--pearl:#fafafc;--bg:#f5f5f7;--panel:#ffffff;--panel-2:#f5f5f7;--border:#e0e0e0;--ink:#1d1d1f;--text:#1d1d1f;--muted:#6e6e73;--accent:#0066cc;--accent-2:#0066cc;--primary-focus:#0071e3;--danger:#d70015;--ok:#248a3d}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--parchment);color:var(--ink);font-family:SF Pro Text,system-ui,-apple-system,BlinkMacSystemFont,Inter,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:17px;line-height:1.47;letter-spacing:-.01em;-webkit-font-smoothing:antialiased}h1,h2,h3{font-family:SF Pro Display,system-ui,-apple-system,Inter,sans-serif;font-weight:600;color:var(--ink)}h1{font-size:40px;line-height:1.1;letter-spacing:-.022em;margin:0 0 6px}h2{font-size:22px;line-height:1.2;margin:0 0 14px}h2,h3{letter-spacing:-.018em}h3{font-size:17px}.shell{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:rgba(255,255,255,.72);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-right:1px solid var(--border);padding:22px 16px;position:-webkit-sticky;position:sticky;top:0;height:100vh}.brand{font-weight:600;font-size:19px;letter-spacing:-.02em;text-decoration:none;display:block;margin-bottom:26px;padding:0 10px;color:var(--ink)}.side-nav{display:flex;flex-direction:column;gap:2px}.side-link{display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:10px;color:var(--ink);text-decoration:none;font-size:15px;letter-spacing:-.01em}.side-link:hover{background:var(--parchment)}.side-link .ico{width:18px;text-align:center;opacity:.85}.content{flex:1 1;max-width:1040px;padding:32px 32px 90px}.trial-banner{background:var(--canvas);border:1px solid var(--border);border-radius:12px;padding:9px 14px;font-size:12px;letter-spacing:-.01em;color:var(--muted);margin-bottom:20px}.container{max-width:980px;margin:0 auto;padding:32px 20px 90px}.card{background:var(--canvas);border:1px solid var(--border);border-radius:18px;padding:20px;margin-bottom:18px}input,select,textarea{width:100%;background:var(--canvas);border:1px solid var(--border);color:var(--ink);border-radius:12px;padding:11px 14px;font-size:15px;font-family:inherit;letter-spacing:-.01em;transition:border-color .15s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-focus)}textarea{min-height:110px;resize:vertical;line-height:1.5}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.spacer{flex:1 1}button{background:var(--accent);color:#ffffff;border:none;border-radius:9999px;padding:10px 22px;font-size:15px;font-weight:400;letter-spacing:-.014em;cursor:pointer;transition:transform .1s ease,filter .15s ease}button:hover{filter:brightness(1.06)}button:active{transform:scale(.96)}button:focus-visible{outline:2px solid var(--primary-focus);outline-offset:2px}button:disabled{opacity:.4;cursor:not-allowed}button.ghost{background:var(--pearl);border:1px solid var(--border);color:var(--ink)}button.ghost:hover{filter:none;background:var(--parchment)}button.btn-ghost{background:var(--pearl);border:1px solid var(--border);color:var(--ink)}button.btn-ghost:hover{filter:none;background:var(--parchment)}button.btn-primary{background:var(--accent);color:#fff}.pill{display:inline-flex;align-items:center;gap:6px;background:var(--canvas);border:1px solid var(--border);border-radius:9999px;padding:6px 14px;font-size:13px;font-weight:400;letter-spacing:-.01em;color:var(--muted)}.pill b{color:var(--ink);font-weight:600}.muted{color:var(--muted)}.error,.muted{font-size:13px}.error{color:var(--danger)}.ok{color:var(--ok)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:16px;gap:16px}.result-img{width:100%;border-radius:14px;border:1px solid var(--border);box-shadow:0 5px 30px 0 rgba(0,0,0,.22)}.tag{font-size:11px;padding:2px 9px;border-radius:9999px;color:var(--muted)}.seg,.tag{background:var(--parchment);border:1px solid var(--border)}.seg{display:inline-flex;border-radius:10px;overflow:hidden}.seg button{background:transparent;color:var(--muted);border-radius:0;font-size:14px;padding:8px 16px}.seg button:hover{filter:none}.seg button.active{background:var(--canvas);color:var(--accent);font-weight:600}.mode-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));grid-gap:12px;gap:12px;margin-bottom:16px}.mode-card{border:1px solid var(--border);border-radius:18px;padding:16px;cursor:pointer;background:var(--canvas);transition:border-color .15s}.mode-card.active{border:2px solid var(--accent);background:rgba(0,102,204,.05);padding:15px}.mode-card .mc-title{font-weight:600;font-size:15px;letter-spacing:-.01em}.mode-card .mc-sub{color:var(--muted);font-size:12px;margin-top:4px}table.ledger{width:100%;border-collapse:collapse;font-size:14px}table.ledger td,table.ledger th{padding:9px 6px;border-bottom:1px solid var(--border);text-align:left}table.ledger th{color:var(--muted);font-weight:600}.neg{color:var(--danger)}.pos{color:var(--ok)}