:root{color:#172033;font-synthesis:none;--blue:#1677ff;--ink:#172033;--muted:#718099;--line:#dce6f3;background:#eef4fc;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:radial-gradient(circle at 20% -10%,#dbeaff 0,#0000 35%),linear-gradient(#f6f9ff,#eaf1fa);min-width:320px;min-height:100vh;margin:0}button,input,textarea{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;padding-bottom:92px}.topbar{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);z-index:20;background:#fafcffdb;border-bottom:1px solid #ccd9ebcc;justify-content:space-between;align-items:center;height:72px;padding:0 max(20px,50vw - 590px);display:flex;position:sticky;top:0}.brand{align-items:center;gap:10px;display:flex}.brand>span{color:#fff;background:linear-gradient(145deg,#0068ff,#55a7ff);border-radius:12px;place-items:center;width:38px;height:38px;font-weight:900;display:grid;box-shadow:0 8px 20px #1677ff44}.brand div{line-height:1.05;display:grid}.brand strong{letter-spacing:-.4px;font-size:19px}.brand small{color:var(--muted);letter-spacing:1.5px;text-transform:uppercase;margin-top:5px;font-size:9px}.web-badge,.badge{color:#0565e8;background:#e7f1ff;border:1px solid #c8defd;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:800}main{width:min(1120px,100% - 28px);margin:22px auto}.notice{color:#155da8;background:#e8f3ff;border:1px solid #c9e1ff;border-radius:15px;gap:10px;margin-bottom:16px;padding:14px 18px;display:flex}.notice.warning{color:#7a5712;background:#fff7dc;border-color:#f7d77a}.notice.error{color:#ad3030;background:#fff0f0;border-color:#ffcaca}.card,.hero-card{background:#ffffffeb;border:1px solid #cddaebdb;border-radius:20px;margin-bottom:16px;padding:22px;box-shadow:0 12px 34px #3c598214}.hero-card{min-height:500px}.card-title{margin-bottom:16px;font-size:18px;font-weight:800}.spread{justify-content:space-between;align-items:center;gap:12px;display:flex}.segment{background:#edf3fa;border-radius:14px;align-items:center;gap:5px;margin-bottom:18px;padding:5px;display:flex;overflow-x:auto}.segment button{color:#65738b;background:0 0;border:0;border-radius:10px;flex:1;min-width:max-content;padding:10px 15px;font-weight:700}.segment button.active{color:var(--blue);background:#fff;box-shadow:0 3px 12px #2548781f}.feature-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.feature-grid button{text-align:left;min-height:92px;color:var(--ink);background:linear-gradient(145deg,#fff,#f7faff);border:1px solid #e1e9f4;border-radius:16px;align-items:center;gap:14px;padding:16px;transition:all .2s;display:flex}.feature-grid button:hover{border-color:#a9ccff;transform:translateY(-2px);box-shadow:0 10px 24px #166fff1a}.feature-grid i{width:48px;height:48px;color:var(--blue);background:#e8f2ff;border-radius:14px;place-items:center;font-size:23px;font-style:normal;display:grid}.feature-grid span{flex:1;gap:5px;display:grid}.feature-grid strong{font-size:16px}.feature-grid small{color:var(--muted);line-height:1.4}.feature-grid>button>b{color:#9eb0c5;font-size:25px}.version{text-align:center;max-width:720px;margin:46px auto}.version-badge{color:var(--blue);background:#e8f2ff;border-radius:999px;padding:7px 13px;font-weight:800;display:inline-flex}.version h2{margin-bottom:10px;font-size:30px}.version p{color:var(--muted);line-height:1.8}.version ul{text-align:left;color:#4c5c73;gap:9px;display:inline-grid}.feedback-form{gap:14px;max-width:720px;margin:28px auto;display:grid}.feedback-form textarea{resize:vertical;min-height:180px}input,textarea{width:100%;color:var(--ink);background:#f9fbfe;border:1px solid #d4dfed;border-radius:12px;outline:none;padding:12px 14px}.feedback-form input:focus,.feedback-form textarea:focus,input:focus{border-color:#6aa8ff;box-shadow:0 0 0 3px #1677ff1a}.primary,.search-row button{color:#fff;text-align:center;background:linear-gradient(135deg,#0871ff,#3894ff);border:0;border-radius:12px;padding:12px 22px;font-weight:800;text-decoration:none;box-shadow:0 7px 18px #1677ff33}.primary:disabled,.search-row button:disabled{opacity:.5}.wide{width:100%;margin-top:12px}.search-row{grid-template-columns:1fr auto;gap:10px;display:grid}.quota{color:var(--blue);background:#eaf3ff;border-radius:9px;padding:7px 10px;font-size:13px}.muted{color:var(--muted);font-size:13px;line-height:1.6}.query-card .muted{margin-bottom:0}.history{padding:17px 20px}.history .card-title{margin-bottom:12px;font-size:15px}.link-btn,.icon-btn{color:var(--blue);background:0 0;border:0;font-weight:700}.icon-btn{color:#526174;font-size:28px}.chips{flex-wrap:wrap;gap:8px;display:flex}.chips button{color:#506078;background:#f6f9fd;border:1px solid #d3e0ef;border-radius:999px;padding:7px 12px}.chips button.active,.chips button:hover{color:var(--blue);background:#edf5ff;border-color:#85baff}.route-inputs{grid-template-columns:1fr auto 1fr;gap:8px;display:grid}.swap{color:var(--blue);background:#edf5ff;border:0;border-radius:12px;padding:0 15px;font-size:20px}.route-options{grid-template-columns:1fr minmax(160px,240px);align-items:center;gap:12px;margin-top:12px;display:grid}.route-options .segment{margin:0}.stats{border-bottom:1px dashed var(--line);flex-wrap:wrap;align-items:center;gap:8px;padding:10px 0;display:flex}.stats strong{margin-right:auto}.stats span{border-radius:7px;padding:5px 8px;font-size:12px}.stats .dep{color:#087853;background:#e8f8f2}.stats .arr{color:#a35300;background:#fff3df}.flight-list{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px;display:grid}.flight-card{cursor:pointer;background:#fff;border:1px solid #dce6f2;border-radius:15px;transition:all .2s;overflow:hidden}.flight-card:hover{border-color:#9ac5ff;transform:translateY(-1px)}.flight-card header{background:#f3f7fc;align-items:center;gap:8px;padding:11px 13px;display:flex}.flight-card header span{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.flight-card header time{margin-left:auto;font-size:12px}.tags{gap:6px;padding:8px 13px 0;display:flex}.tags span{color:#1768c8;background:#eaf3ff;border-radius:6px;padding:4px 7px;font-size:11px}.route-line{grid-template-columns:1fr auto 1fr;align-items:center;gap:9px;padding:13px;display:grid}.route-line div{gap:5px;min-width:0;display:grid}.route-line strong{white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.route-line small{color:var(--muted);font-size:11px}.route-line i{color:#83a5ca;text-align:center;font-style:normal;display:grid}.right{text-align:right}.error-box{color:#aa3434;background:#fff2f2;border-color:#ffd1d1;border-radius:12px;padding:14px 18px}.skeleton{gap:12px;display:grid}.skeleton i{background:linear-gradient(90deg,#e9eff6,#f8fbff,#e9eff6) 0 0/200%;border-radius:8px;height:18px;animation:1.2s infinite beam}@keyframes beam{to{background-position:-200% 0}}.modal-mask{z-index:40;background:#0b1424b8;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.modal{background:#fff;border-radius:20px;width:100%;max-width:900px;max-height:90vh;padding:20px;overflow:auto}.photo-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.photo-grid figure{margin:0}.photo-grid img{border-radius:12px;width:100%;display:block}.photo-grid figcaption{color:var(--muted);padding:7px;font-size:12px}.photo-grid a{color:var(--blue)}.airport-chips{margin-top:16px}.airport-chips button{text-align:left;border-radius:10px;display:grid}.airport-chips button b{color:var(--blue)}.weather-results{gap:20px;display:grid}.weather-block+.weather-block{border-top:1px solid var(--line);padding-top:20px}.weather-block code{color:#d8e8ff;white-space:pre-wrap;background:#152238;border-radius:12px;margin:10px 0;padding:14px;line-height:1.7;display:block}.weather-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.weather-grid div{background:#f4f7fb;border-radius:9px;gap:4px;padding:10px;display:grid}.weather-grid span{color:var(--muted);font-size:11px}.weather-grid b{font-size:13px}.drop-zone{cursor:pointer;background:#f5f9fe;border:2px dashed #b8cce5;border-radius:17px;align-content:center;place-items:center;gap:8px;min-height:280px;display:grid;overflow:hidden}.drop-zone input{display:none}.drop-zone>b{color:var(--blue);font-size:38px}.drop-zone small{color:var(--muted)}.drop-zone img{object-fit:contain;width:100%;max-height:560px}.loading-line{text-align:center;color:var(--blue);padding:15px}.analysis-grid{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px;display:grid}.analysis-grid a{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:12px;text-decoration:none;overflow:hidden}.analysis-grid img{width:100%;display:block}.analysis-grid span{padding:10px;font-size:12px;font-weight:700;display:block}.compress-row{grid-template-columns:1fr 130px auto;align-items:center;gap:10px;display:grid}.compressed{text-align:center;gap:10px;margin-top:16px;display:grid}.compressed img{border-radius:12px;max-width:100%;max-height:520px;margin:auto}footer{color:#7b899d;justify-content:space-between;gap:20px;padding:22px 6px;font-size:12px;display:flex}.bottom-nav{z-index:25;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffe6;border:1px solid #d3deec;border-radius:20px;grid-template-columns:repeat(3,1fr);width:min(520px,100% - 28px);padding:7px;display:grid;position:fixed;bottom:16px;left:50%;transform:translate(-50%);box-shadow:0 13px 38px #263f6330}.bottom-nav button{color:#78879d;background:0 0;border:0;border-radius:14px;place-items:center;gap:2px;padding:8px;display:grid}.bottom-nav button.active{color:var(--blue);background:#eaf3ff}.bottom-nav i{font-size:20px;font-style:normal}.bottom-nav span{font-size:11px;font-weight:700}@media (width<=720px){.topbar{height:62px;padding:0 16px}.web-badge{font-size:10px}.brand small{display:none}main{width:min(100% - 20px,1120px);margin-top:14px}.card,.hero-card{border-radius:16px;padding:15px}.hero-card{min-height:0}.feature-grid,.flight-list,.photo-grid,.analysis-grid{grid-template-columns:1fr}.feature-grid button{min-height:78px}.feature-grid i{width:42px;height:42px}.route-options,.compress-row{grid-template-columns:1fr}.weather-grid{grid-template-columns:repeat(2,1fr)}.route-line{gap:4px}.notice{display:grid}.drop-zone{min-height:210px}footer{display:grid}.bottom-nav{bottom:8px}}