:root{--bg: #f4f6fb;--panel: #ffffff;--border: #e4e9f2;--text: #1b2333;--text-2: #5a6577;--text-3: #8b95a7;--accent: #e3350d;--accent-soft: #fff1ec;--ok: #14a05a;--warn: #e03c3c;--shadow: 0 1px 2px rgba(24, 39, 75, .06), 0 6px 18px rgba(24, 39, 75, .06);--radius: 14px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}input{font-family:inherit}.app{max-width:1400px;margin:0 auto;padding:16px 14px 48px}.app-header{padding:4px 2px 16px}.app-header h1{margin:0;font-size:22px;letter-spacing:.5px}.app-header h1 span{color:var(--accent)}.app-header .sub{margin:6px 0 0;color:var(--text-2);font-size:12.5px}.app-header .sub a{color:var(--accent);text-decoration:none}.layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:16px;align-items:start}.side{display:flex;flex-direction:column;gap:14px;position:sticky;top:14px}.main{display:flex;flex-direction:column;gap:16px;min-width:0}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px}.panel-title{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:14px;font-weight:700;margin:0 0 10px}.panel-title .muted{font-weight:400;font-size:12px;color:var(--text-3)}.search-box{position:relative}.search-box input{width:100%;padding:10px 34px 10px 12px;border:1px solid var(--border);border-radius:10px;font-size:14px;outline:none;background:#fbfcfe;color:var(--text);transition:border-color .15s,background .15s}.search-box input:focus{border-color:var(--accent);background:#fff}.search-box .clear{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:transparent;color:var(--text-3);font-size:18px;line-height:1;padding:4px 6px}.search-hint{margin:8px 0 0;font-size:12px;color:var(--text-2)}.search-hint b{color:var(--accent)}.chips{display:flex;flex-wrap:wrap;gap:6px}.chip{border:1px solid var(--border);background:#fbfcfe;color:var(--text-2);border-radius:999px;padding:5px 11px;font-size:12.5px;line-height:1.2;transition:all .15s}.chip:hover{border-color:#c9d3e4}.chip.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.speed-input{display:flex;align-items:center;gap:8px;margin-top:12px}.speed-input input{flex:1;min-width:0;padding:10px 12px;border:1px solid var(--border);border-radius:10px;font-size:16px;font-weight:600;outline:none;background:#fbfcfe;color:var(--text)}.speed-input input:focus{border-color:var(--accent);background:#fff}.speed-input .unit{color:var(--text-3);font-size:12.5px}.result-block{margin-top:14px}.result-head{display:flex;align-items:center;gap:6px;font-size:12.5px;color:var(--text-2);margin-bottom:8px}.result-head .bar{width:3px;height:13px;border-radius:2px;background:var(--text-3)}.result-head b{font-size:13px;color:var(--text)}.result-list{display:flex;flex-wrap:wrap;gap:5px}.result-item{display:inline-flex;align-items:center;gap:5px;border-radius:8px;padding:3px 7px;font-size:12.5px;background:#f4f6fb;border:1px solid var(--border);color:var(--text)}.result-item .v{font-weight:700;font-variant-numeric:tabular-nums;color:var(--text-2)}.result-item .t{font-size:11px;color:var(--text-3)}.result-item.is-faster .v{color:var(--ok)}.result-item.is-slower .v{color:var(--warn)}.result-item.is-same .v{color:#d97706}.result-empty{margin:10px 0 0;font-size:12.5px;color:var(--text-3)}.tier{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.tier-head{display:flex;align-items:center;gap:8px;padding:10px 14px;color:#fff;font-weight:700;font-size:14px}.tier-head .tag{font-size:11.5px;font-weight:500;padding:1px 7px;border-radius:999px;background:#ffffff38}.tier-head .count{margin-left:auto;font-size:12px;font-weight:500;opacity:.9}.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}table.speed-table{width:100%;border-collapse:collapse;font-size:13px;min-width:480px}table.speed-table th,table.speed-table td{padding:7px 10px;text-align:right;border-bottom:1px solid #f0f3f9;white-space:nowrap;font-variant-numeric:tabular-nums}table.speed-table th{font-size:11.5px;font-weight:600;color:var(--text-3);background:#fafbfe;position:sticky;top:0;z-index:1}table.speed-table td.name,table.speed-table th.name{text-align:left;font-variant-numeric:normal}table.speed-table td.name{font-weight:600;position:sticky;left:0;background:var(--panel);z-index:2;min-width:108px}table.speed-table th.name{left:0;z-index:3}table.speed-table tbody tr:hover td,table.speed-table tbody tr:hover td.name{background:#f7f9fd}table.speed-table tbody tr:last-child td{border-bottom:0}td.name .mega{display:inline-block;margin-left:5px;font-size:10px;font-weight:700;color:#fff;background:#f0a020;border-radius:4px;padding:0 4px;vertical-align:1px}tr.hit td{background:var(--accent-soft)!important}tr.hit td.name{background:var(--accent-soft)!important;box-shadow:inset 3px 0 0 var(--accent)}.col-base{color:var(--text);font-weight:600}.boost-controls{display:flex;flex-direction:column;gap:10px}.boost-controls .speed-input{margin-top:0}.speed-input .prefix{font-size:16px;font-weight:700;color:var(--accent)}table.speed-table td.col-boost,table.speed-table th.col-boost{color:var(--accent);font-weight:700}table.speed-table td.col-tier,table.speed-table th.col-tier{text-align:left;font-variant-numeric:normal;color:var(--text-2);font-size:12.5px}.boost-scroll{max-height:460px;overflow:auto;border:1px solid var(--border);border-radius:10px}.tier-dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:5px;vertical-align:1px}.group-head{display:flex;align-items:center;gap:8px;padding:10px 14px;color:#fff;font-weight:700;font-size:14px}.group-head .tag{font-size:11.5px;font-weight:500;padding:1px 7px;border-radius:999px;background:#ffffff38}.group-note{margin:0;padding:10px 14px;font-size:12.5px;color:var(--text-2);border-bottom:1px solid #f0f3f9;background:#fafbfe}.formula-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text-2)}.formula-list li{display:flex;gap:8px;align-items:baseline}.formula-list .k{flex:0 0 76px;color:var(--text);font-weight:600}.formula-list code{background:#f4f6fb;border:1px solid var(--border);border-radius:6px;padding:1px 6px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:#b3300d}.example{margin:12px 0 0;padding:10px 12px;background:#fafbfe;border:1px dashed var(--border);border-radius:10px;font-size:12.5px;color:var(--text-2)}.example b{color:var(--text)}.empty-state{padding:32px 16px;text-align:center;color:var(--text-3);font-size:13px}.app-footer{margin-top:22px;text-align:center;font-size:12px;color:var(--text-3)}@media (max-width: 900px){.layout{grid-template-columns:minmax(0,1fr)}.side{position:static}.app{padding:12px 10px 40px}}@media (max-width: 560px){.app-header h1{font-size:19px}.panel{padding:12px;border-radius:12px}table.speed-table{font-size:12.5px;min-width:420px}table.speed-table th,table.speed-table td{padding:6px 8px}table.speed-table td.name{min-width:92px}.formula-list .k{flex-basis:68px}}