:root{--blue-900: #0b2233;--blue-800: #0e3552;--blue-700: #0f4c7a;--blue-600: #1267a8;--blue-500: #1f8fff;--blue-400: #4eaff5;--blue-300: #7fceff;--blue-200: #bce4ff;--blue-100: #e8f6ff;--blue-50: #f4fbff;--ink-900: #0e1c24;--ink-800: #17252b;--ink-700: #213a42;--ink-600: #2f4a54;--ink-400: #617880;--ink-300: #8fa0a8;--ink-100: #dde8ec;--ink-50: #f0f5f7;--green-500: #2bb56a;--amber-500: #f59e0b;color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans TC,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;color:var(--ink-800);background:var(--blue-50)}h1,h2,p{margin:0}button,input,select{font:inherit;cursor:pointer}a{color:inherit}.app-shell{display:grid;grid-template-columns:minmax(380px,420px) 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var(--blue-200);border-radius:10px;background:var(--blue-50)}.summary-cell strong{display:block;color:var(--ink-900);font-size:1.05rem;font-weight:800;letter-spacing:-.01em}.summary-cell span{display:block;margin-top:2px;color:var(--ink-400);font-size:.72rem;font-weight:700}.filter-panel{display:grid;gap:12px;padding:14px;border:1px solid var(--ink-100);border-radius:12px;background:var(--blue-50);margin-bottom:14px}.field{display:grid;gap:6px}.field-label{color:var(--ink-400);font-size:.72rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase}.airport-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.airport-tabs button{display:grid;gap:1px;padding:7px 4px;border:1px solid var(--ink-100);border-radius:8px;background:#fff;color:var(--ink-600);text-align:center;transition:border-color .14s,background .14s,color .14s,box-shadow .14s}.airport-tabs button strong{font-size:.88rem;font-weight:800}.airport-tabs button small{font-size:.65rem;color:var(--ink-300);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.airport-tabs button.active{border-color:var(--blue-500);background:var(--blue-500);color:#fff;box-shadow:0 4px 14px #1f8fff4d}.airport-tabs button.active small{color:#ffffffb8}.search-wrap{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:12px;color:var(--ink-300);pointer-events:none}.search-wrap input{width:100%;min-height:40px;padding:0 12px 0 36px;border:1px solid var(--ink-100);border-radius:8px;background:#fff;color:var(--ink-800);outline:none;transition:border-color .14s,box-shadow .14s}.search-wrap input:focus{border-color:var(--blue-500);box-shadow:0 0 0 3px #1f8fff1f}.filter-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}.field select{width:100%;min-height:40px;padding:0 28px 0 10px;border:1px solid var(--ink-100);border-radius:8px;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238fa0a8' stroke-width='2.5' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") no-repeat right 10px center;color:var(--ink-800);-webkit-appearance:none;-moz-appearance:none;appearance:none;outline:none;font-size:.84rem;cursor:pointer;transition:border-color .14s,box-shadow .14s}.field select:focus{border-color:var(--blue-500);box-shadow:0 0 0 3px #1f8fff1f}.filter-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.metric-switch{display:flex;align-items:center;gap:5px;flex-wrap:wrap}.metric-switch .field-label{margin-right:2px}.metric-switch button{min-height:30px;padding:0 10px;border:1px solid var(--ink-100);border-radius:999px;background:#fff;color:var(--ink-600);font-size:.78rem;font-weight:700;transition:border-color .14s,background .14s,color .14s}.metric-switch button.active{border-color:var(--blue-500);background:var(--blue-500);color:#fff}.reset-btn{flex:0 0 auto;min-height:30px;padding:0 12px;border:1px solid rgb(220 50 50 / .2);border-radius:999px;background:#dc32320f;color:#c03030;font-size:.76rem;font-weight:800;transition:background .14s,border-color .14s}.reset-btn:hover{background:#dc32321f;border-color:#dc32325c}.airline-comparison{border:1px solid var(--ink-100);border-radius:12px;background:#fff;overflow:hidden;margin-bottom:14px}.comparison-header{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:52px;padding:12px 14px;border:0;background:transparent;text-align:left}.comparison-header:hover{background:var(--ink-50)}.comparison-header-text{display:grid;gap:1px}.section-eyebrow{display:block;color:var(--blue-500);font-size:.68rem;font-weight:900;letter-spacing:.06em;text-transform:uppercase}.comparison-header-text strong{color:var(--ink-800);font-size:.95rem}.comparison-toggle-chip{flex:0 0 auto;padding:4px 10px;border-radius:999px;background:var(--blue-100);color:var(--blue-700);font-size:.72rem;font-weight:900}.comparison-body{padding:0 10px 10px;display:grid;gap:6px}.airline-row{display:grid;grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:8px;min-height:52px;padding:8px 10px;border:1px solid var(--ink-100);border-radius:10px;background:#fff;color:var(--ink-800);text-align:left;transition:border-color .14s,box-shadow .14s,background .14s}.airline-row:hover{border-color:var(--blue-300);background:var(--blue-50)}.airline-row.active{border-color:var(--blue-400);background:var(--blue-100);box-shadow:0 4px 18px #1f8fff24}.airline-rank{display:grid;place-items:center;width:26px;height:26px;border-radius:999px;background:var(--blue-100);color:var(--blue-700);font-size:.78rem;font-weight:900}.airline-main{display:grid;gap:6px;min-width:0}.airline-main strong{overflow:hidden;color:var(--ink-800);font-size:.86rem;text-overflow:ellipsis;white-space:nowrap}.airline-main 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#1f8fff29;cursor:pointer}.route-card__visual{position:relative;display:flex;flex-direction:column;justify-content:space-between;padding:10px 8px}.region-east-asia{background:linear-gradient(145deg,#0a2e4a,#0f5f8a)}.region-sea{background:linear-gradient(145deg,#0a3b28,#1a7a56)}.region-europe{background:linear-gradient(145deg,#200e52,#5830b0)}.region-americas{background:linear-gradient(145deg,#4a1010,#a03828)}.region-oceania{background:linear-gradient(145deg,#093858,#1488c0)}.region-mideast{background:linear-gradient(145deg,#3c2000,#a86010)}.region-default{background:linear-gradient(145deg,#1a3046,#2a6480)}.card-airport-code{color:#fffffff2;font-size:1.05rem;font-weight:900;letter-spacing:.02em;text-shadow:0 1px 4px rgb(0 0 0 / .4)}.card-load-badge{align-self:end;display:inline-block;padding:3px 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