:root{--navy:#071f35;--navy2:#0a2b48;--ink:#102331;--muted:#6f7f89;--line:#dbe4e8;--bg:#f3f7f8;--white:#fff;--teal:#0a918f;--teal2:#087572;--gold:#ca9636;--danger:#b84343;--shadow:0 18px 60px rgba(18,49,63,.09)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg)}button,input,select{font:inherit}button,a{transition:.2s ease}button{cursor:pointer}.eyebrow,.crumb{font-size:11px;letter-spacing:.2em;font-weight:800;color:#87a7b8}.eyebrow.teal{color:var(--teal)}
.auth-shell{min-height:100vh;display:grid;grid-template-columns:48% 52%;background:#fff}.auth-brand{position:relative;overflow:hidden;color:#fff;padding:54px 9%;display:flex;flex-direction:column;background:linear-gradient(rgba(4,25,44,.4),rgba(4,25,44,.82)),url(world-routes.png) center/cover}.auth-brand>img{width:68px;height:68px;object-fit:contain;filter:drop-shadow(0 5px 12px rgba(0,0,0,.3))}.auth-copy{margin:auto 0;max-width:520px}.auth-copy h1{font-size:52px;margin:16px 0 18px;letter-spacing:-.04em}.auth-copy h1 b{color:#44c4bd}.auth-copy p{font-size:21px;line-height:1.8;color:#d4e4ea}.brand-pills{display:flex;gap:9px;flex-wrap:wrap;margin-top:36px}.brand-pills span{padding:8px 12px;border:1px solid rgba(255,255,255,.18);border-radius:99px;font-size:12px;color:#c6d9e2;background:rgba(255,255,255,.05)}.auth-brand small{color:#91adba}.auth-form{display:grid;place-items:center;padding:48px}.form-card{width:min(430px,100%)}.form-card h2{font-size:36px;margin:12px 0 10px}.form-card>p{color:var(--muted);margin-bottom:32px}.form-card label{display:block;font-size:13px;font-weight:700;margin:17px 0}.form-card input{display:block;width:100%;margin-top:8px;padding:14px 15px;border:1px solid var(--line);border-radius:8px;outline:none;background:#fbfcfc}.form-card input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(10,145,143,.1)}.primary{border:0;color:#fff;background:var(--teal);padding:13px 22px;border-radius:8px;font-weight:800}.primary:hover{background:var(--teal2);transform:translateY(-1px)}.full{width:100%;margin-top:6px}.switch{text-align:center!important;font-size:14px}.switch a,.admin-link{color:var(--teal);font-weight:700;text-decoration:none}.admin-link{display:block;text-align:center;font-size:12px}.mobile-brand{display:none}.alert{padding:12px 14px;border-radius:8px;background:#fff0f0;color:var(--danger);font-size:13px}
.app-shell{min-height:100vh;display:grid;grid-template-columns:248px 1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:248px;display:flex;flex-direction:column;padding:28px 18px;background:var(--navy);color:#fff;overflow:hidden}.brand{display:flex;align-items:center;gap:11px;color:#fff;text-decoration:none;padding:0 8px}.brand img{width:44px;height:44px;object-fit:contain}.brand strong{display:block;font-size:16px}.brand small{display:block;font-size:10px;color:#87a7b8;margin-top:3px}.sidebar nav{display:grid;gap:7px;margin-top:54px}.nav-item{display:flex;align-items:center;gap:12px;text-align:left;padding:12px;border:0;border-radius:7px;background:transparent;color:#98b2c0;font-weight:700}.nav-item i{font-style:normal;width:22px;text-align:center}.nav-item:hover,.nav-item.active{color:#fff;background:rgba(25,190,181,.13)}.nav-item.active{box-shadow:inset 3px 0 var(--teal)}.sidebar-art{position:absolute;left:0;right:0;bottom:70px;height:220px;opacity:.13;background:url(world-routes.png) 66% center/660px auto no-repeat;pointer-events:none}.user-box{position:relative;z-index:1;margin-top:auto;display:grid;grid-template-columns:36px 1fr auto;gap:10px;align-items:center;padding:14px 8px 0;border-top:1px solid rgba(255,255,255,.1)}.avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#0e7778}.user-box b{display:block;max-width:120px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:12px}.user-box span{font-size:11px;color:#8ca9b7}.user-box em{color:#e6b653;font-style:normal}.user-box a{color:#8ca9b7;text-decoration:none}
.workspace{grid-column:2;padding:0 4vw 56px;min-width:0}.topbar{height:104px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);margin-bottom:32px}.topbar h1{font-size:25px;margin:5px 0 0}.top-actions{display:flex;gap:10px}.credit-chip,.recharge-btn,.secondary{border:1px solid var(--line);padding:9px 13px;border-radius:7px;background:#fff;color:var(--ink);font-weight:700}.credit-chip span{color:var(--gold)}.recharge-btn{border-color:var(--gold);color:#8e671d;background:#fffaf0}.menu-btn{display:none}.panel{display:none;animation:fade .25s ease}.panel.active{display:block}@keyframes fade{from{opacity:0;transform:translateY(5px)}}.tool-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:22px}.tool-card,.recent-card,.result-card,.history-columns>article{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:12px}.tool-card{padding:28px}.card-head{display:flex;justify-content:space-between;gap:20px}.card-head h2{font-size:22px;margin:10px 0 7px}.card-head p{color:var(--muted);font-size:13px;line-height:1.7;margin:0;max-width:580px}.step{font-weight:900;color:var(--teal);letter-spacing:.1em}.cost{height:max-content;white-space:nowrap;background:#f1f8f7;color:var(--teal2);padding:8px 11px;border-radius:6px;font-size:12px;font-weight:800}.dropzone{margin-top:26px;min-height:260px;border:1.5px dashed #adc0c8;background:#f8fbfb;display:grid;place-content:center;text-align:center;border-radius:10px;cursor:pointer}.dropzone:hover,.dropzone.drag{border-color:var(--teal);background:#f2fbfa}.dropzone input{display:none}.upload-icon{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;margin:0 auto 15px;background:#dff3f1;color:var(--teal);font-size:24px}.dropzone b{font-size:15px}.dropzone small{display:block;color:var(--muted);margin-top:8px}.file-preview,.image-preview{margin-top:10px;color:var(--muted);font-size:12px}.image-preview img{max-height:110px;border-radius:8px}.action{display:flex;justify-content:space-between;align-items:center;width:100%;margin-top:18px}.action:disabled{background:#9db1b6;cursor:not-allowed;transform:none}.recent-card{padding:22px}.aside-title{display:flex;align-items:center;justify-content:space-between}.aside-title h3{margin:0}.aside-title button{border:0;background:none;color:var(--teal);font-size:12px}.history-list{display:grid;gap:10px;margin-top:16px}.history-item{border:1px solid #e4eaed;border-radius:8px;padding:13px;background:#fbfcfc;cursor:pointer}.history-item:hover{border-color:#8bc3c0}.history-item b{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-item small{display:block;color:var(--muted);margin-top:5px}.compact .history-item p{display:none}.skeleton{height:62px;border-radius:8px;background:linear-gradient(90deg,#eef2f3,#f9fbfb,#eef2f3);background-size:200%;animation:shimmer 1.2s infinite}@keyframes shimmer{to{background-position:-200%}}.result-card{margin-top:22px;padding:28px}.hidden{display:none!important}.result-head{display:flex;justify-content:space-between;align-items:center;gap:20px}.result-head span{font-size:10px;color:var(--teal);letter-spacing:.18em;font-weight:800}.result-head h2{margin:5px 0}.result-head select{padding:9px;border:1px solid var(--line);border-radius:7px}.result-card pre{white-space:pre-wrap;font:14px/1.85 inherit;background:#f7f9f9;border-radius:8px;padding:24px;max-height:720px;overflow:auto}.result-card>img{display:block;width:min(760px,100%);margin:24px auto 0}.download{text-decoration:none;font-size:13px}.progress{display:none;padding:12px 0;color:var(--muted);font-size:12px}.progress.show{display:block}.progress span{display:block;height:4px;border-radius:9px;background:linear-gradient(90deg,var(--teal) 30%,#d7e7e6 30%);background-size:200% 100%;animation:load 1s infinite}.progress p{margin:8px 0 0}@keyframes load{to{background-position:-200% 0}}
.history-header{display:flex;justify-content:space-between;align-items:end;margin-bottom:24px}.history-header h2{font-size:30px;margin:8px 0}.history-header p{color:var(--muted)}.history-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.history-columns>article{padding:24px}.history-columns h3{margin-top:0}dialog{border:0;border-radius:14px;padding:30px;width:min(430px,90%);box-shadow:0 30px 100px rgba(0,0,0,.25)}dialog::backdrop{background:rgba(2,18,30,.6)}.dialog-close{float:right;border:0;background:none;font-size:24px}.contact-box{padding:15px;background:#f3f8f8;border-radius:8px;color:var(--teal2);font-weight:700}.simple-page{min-height:100vh;display:grid;place-items:center}.admin-page{padding:40px;max-width:1200px;margin:auto}.admin-page header{display:flex;justify-content:space-between;align-items:center}.table-wrap{overflow:auto;background:#fff;border-radius:10px}.admin-page table{border-collapse:collapse;width:100%}.admin-page th,.admin-page td{text-align:left;padding:12px;border-bottom:1px solid var(--line)}.credit-form{display:flex;gap:6px}.credit-form input{width:80px}
@media(max-width:900px){.auth-shell{grid-template-columns:1fr}.auth-brand{display:none}.auth-form{min-height:100vh;padding:28px}.mobile-brand{display:flex;align-items:center;gap:8px;color:var(--ink);font-weight:800;text-decoration:none;margin-bottom:56px}.mobile-brand img{width:40px;height:40px}.app-shell{display:block}.sidebar{z-index:20;transform:translateX(-100%);transition:.25s}.sidebar.open{transform:none}.workspace{grid-column:auto;padding:0 18px 40px}.topbar{height:88px}.menu-btn{display:block;border:0;background:none;font-size:20px}.top-actions .credit-chip{display:none}.tool-grid,.history-columns{grid-template-columns:1fr}.recent-card{order:-1}.card-head,.result-head{align-items:flex-start;flex-direction:column}.dropzone{min-height:210px}.topbar h1{font-size:20px}}
@media(max-width:520px){.auth-form{padding:22px}.form-card h2{font-size:30px}.workspace{padding:0 12px 30px}.tool-card,.recent-card,.result-card{padding:18px}.topbar{margin-bottom:18px}.recharge-btn{font-size:12px}.cost{white-space:normal}.history-header{align-items:flex-start;flex-direction:column;gap:10px}}
.toast{position:fixed;z-index:100;right:24px;bottom:24px;padding:13px 18px;border-radius:8px;color:#fff;background:var(--navy);box-shadow:0 12px 35px rgba(0,0,0,.18);opacity:0;transform:translateY(12px);transition:.22s}.toast.show{opacity:1;transform:none}.toast.bad{background:var(--danger)}