:root{--blue:#4b7ff5;--dark:#1d1d1d;--gray:#3d424c}*{box-sizing:border-box}html,body{margin:0;background:#050505;color:#fff;font-family:"Microsoft YaHei","PingFang SC",sans-serif}button,textarea{font:inherit;color:inherit}.app{min-width:1100px;min-height:100vh;background:#000}header{height:162px;display:grid;grid-template-columns:310px 250px 1fr 155px;border-bottom:6px solid #1b1b1b;overflow:hidden}.brand{display:flex;align-items:center;gap:14px;padding:20px 28px}.logo{font-size:72px;line-height:.7;color:var(--blue);font-weight:900;transform:rotate(6deg);position:relative}.logo i{position:absolute;color:#63ee71;font-size:23px;right:-4px;top:-18px}.brand b{display:block;color:var(--blue);font-size:40px}.brand span{display:block;font-size:21px;margin:8px 0 0 7px}.product{font-size:30px;font-weight:700;display:flex;align-items:flex-end;padding-bottom:23px;white-space:nowrap}.banner{position:relative;display:flex;align-items:center;justify-content:center;text-align:center;background:radial-gradient(circle at 55% 55%,#5a1535 0 3%,transparent 18%),linear-gradient(100deg,#001024,#050006 60%,#021934);overflow:hidden}.banner:before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,#277cff 1px,transparent 1.5px),radial-gradient(circle,#ff276f 1px,transparent 1.5px);background-size:12px 12px,19px 19px;opacity:.6;mask-image:linear-gradient(90deg,transparent,#000 15%,#000 85%,transparent)}.banner>div{z-index:1}.banner b,.banner span{display:block}.banner b{font-size:30px}.banner span{font-size:25px;margin-top:15px}.banner .shoe{position:absolute;left:6%;font-size:90px;color:#45c6ff;opacity:.55;transform:rotate(-8deg)}.banner em{position:absolute;right:4%;font-size:120px;color:#4385ff;opacity:.35}.login{border:0;background:#000;color:var(--blue);font-size:17px;align-self:end;margin-bottom:15px}.accountbar{height:52px;border-bottom:1px solid #222;display:flex;justify-content:flex-end;align-items:center;gap:18px;padding-right:17px}.accountbar span{background:var(--dark);padding:11px 20px;border-radius:11px}.accountbar button{border:0;background:var(--blue);padding:10px 26px;border-radius:10px;font-size:18px}.layout{display:grid;grid-template-columns:310px minmax(580px,720px) minmax(550px,1fr);min-height:760px}aside{border-right:2px solid #1c1c1c;padding:42px 22px 25px;display:flex;flex-direction:column}nav{display:flex;flex-direction:column;gap:12px}nav button{height:51px;border:0;border-radius:20px;background:var(--dark);font-size:20px;cursor:pointer}nav button.active{background:var(--blue)}.service{margin-top:auto;background:var(--dark);border-radius:17px;padding:14px 17px;font-size:18px}main{padding:16px 24px 24px}main h2{font-size:21px;margin:0 0 7px 4px}.models{display:flex;background:#41454e;padding:5px;width:max-content}.models button{border:2px solid #646a75;background:#292d34;border-radius:9px;padding:8px 17px;font-size:12px;margin-right:5px;cursor:pointer}.models button.active{background:var(--blue)}.source-area{position:relative;min-height:530px;padding-top:36px}.mask-toolbar{position:absolute;right:0;top:10px;display:flex;align-items:center;gap:9px}.mask-toolbar button{border:0;background:#5b5b5b;padding:9px 15px;cursor:pointer}.mask-toolbar button:disabled{opacity:.4}.mask-toolbar span{font-size:11px;color:#969696}.dropbox{height:285px;border:4px dashed #888;border-radius:15px;display:flex;align-items:center;padding:18px;margin:0 14px}.slots{display:grid;grid-template-columns:repeat(4,76px);gap:10px}.slot{width:76px;height:76px;border:2px dashed #777;border-radius:5px;display:grid;place-items:center;color:#777;overflow:hidden;cursor:pointer;position:relative}.slot img{width:100%;height:100%;object-fit:cover}.slot.selected{border-color:var(--blue);box-shadow:0 0 0 2px var(--blue)}.slot small{position:absolute;left:3px;bottom:3px;background:#000b;padding:2px;font-size:8px}.limit{margin-left:auto;text-align:center;font-size:22px}.limit b{font-size:35px}.source-buttons{display:flex;justify-content:center;gap:8px;margin:12px 0}.source-buttons button,.quick button{border:0;background:var(--dark);padding:7px 17px;border-radius:14px;cursor:pointer}.presets{display:flex;background:var(--gray);padding:6px;width:max-content;margin:15px 14px 0}.presets button{border:2px solid #606671;background:#292d34;border-radius:9px;padding:7px 11px;margin-right:4px;font-size:12px}.prompt{width:calc(100% - 28px);height:130px;margin:14px;background:#000;border:4px dashed #888;border-radius:14px;padding:15px;font-size:17px;resize:none}.single-drop{height:310px;border:4px dashed #888;border-radius:15px;display:grid;place-items:center;text-align:center;cursor:pointer;font-size:20px}.single-drop span{display:block;color:#999;font-size:12px;margin-top:8px}.triple-drop,.sole-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px}.mini-drop{height:180px;border:2px dashed #777;border-radius:8px;display:grid;place-items:center;text-align:center;cursor:pointer;padding:10px}.mini-drop img{max-width:100%;max-height:150px}.sole-tools{grid-template-columns:1fr}.sole-tool{height:110px;border:2px dashed #777;border-radius:8px;display:flex;justify-content:space-between;align-items:center;padding:20px;font-size:18px}.sole-tool span{font-size:13px;color:#aaa}.history{background:#373b45;border:5px solid #555;border-radius:12px;padding:10px}.history>b{font-size:12px}.history>div{display:grid;grid-template-columns:repeat(8,1fr);gap:5px;margin-top:8px}.thumb{height:50px;border:2px solid #777;border-radius:7px;background:linear-gradient(135deg,#06102a,#34182e);display:grid;align-items:end;padding:3px;font-size:10px;cursor:pointer}.output{padding:12px 25px}.result-title{background:var(--dark);width:max-content;margin:0 auto 8px;padding:7px 22px;border-radius:14px;font-size:22px}.canvas{height:430px;border:4px dashed #888;border-radius:15px;display:grid;place-items:center;overflow:hidden}.empty{display:flex;flex-direction:column;align-items:center;color:#777;gap:9px}.empty i{font-size:46px;color:var(--blue)}.empty span{font-size:12px}.resultgrid{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:8px;width:100%;height:100%}.result{display:grid;place-items:center;background:linear-gradient(135deg,#09162f,#30192d);border:1px solid #42557b;color:#7fa0ff}.quick{display:flex;justify-content:flex-end;gap:8px;min-height:43px;padding:8px 0}.params{display:flex;justify-content:space-between}.params>div{background:#3e424c;padding:5px}.params button{border:1px solid #606671;background:#292d34;border-radius:8px;padding:7px 17px;font-size:12px}.params button.active{background:var(--blue)}.counts button{padding:7px 10px}.actions{display:flex;gap:12px;justify-content:center;margin-top:14px}.actions button{border:0;background:var(--dark);border-radius:12px;padding:10px 31px;font-size:20px}.actions .primary{background:var(--blue)}dialog{background:#171717;color:#fff;border:1px solid #555;border-radius:14px;min-width:560px;box-shadow:0 25px 80px #000;padding:18px}dialog::backdrop{background:#000b}.dialog-head{display:flex;justify-content:space-between;font-size:18px}.dialog-head .close{border:0;background:none;font-size:24px}.history-picker{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin:18px 0}.pick{height:90px;border:2px solid #555;border-radius:8px;background:linear-gradient(145deg,#092047,#401d38);cursor:pointer}.pick.selected{border-color:var(--blue)}.confirm{border:0;background:var(--blue);border-radius:8px;padding:9px 22px;float:right}.paintbar{display:flex;align-items:center;gap:8px;margin:14px 0}.paintbar button{background:#292929;border:1px solid #555;border-radius:6px;padding:6px 12px}.paintbar button.active{background:var(--blue)}.paint-stage{width:700px;height:480px;position:relative;background:#090909;overflow:hidden}.paint-stage canvas{position:absolute;inset:0;width:100%;height:100%}.dialog-actions{padding-top:14px;min-height:45px}.toast{position:fixed;left:50%;bottom:22px;transform:translate(-50%,15px);background:#252525;border:1px solid #555;padding:10px 18px;border-radius:8px;opacity:0;transition:.2s;z-index:20}.toast.show{opacity:1;transform:translate(-50%,0)}@media(max-width:1300px){.layout{grid-template-columns:240px 580px 1fr}header{grid-template-columns:260px 210px 1fr 135px}.brand b{font-size:33px}.product{font-size:24px}.slots{grid-template-columns:repeat(4,64px)}.slot{width:64px;height:64px}}
/* Lightweight animated hero background: CSS only, no video asset. */
.output .resultgrid{grid-template-columns:repeat(auto-fit,minmax(115px,1fr));height:auto;min-height:100%;overflow:auto}
.output .resultgrid .result{min-height:125px;background-position:center;background-size:cover}
.output .quick button:disabled{opacity:.55;cursor:wait}
/* Button groups are transparent; every control is an individual rounded button. */
main .models,main .presets,.output .params>div{background:transparent;padding:0;gap:8px}
.brand-image{display:block;width:225px;max-height:82px;object-fit:contain;object-position:left center}.brand>div>span{display:block;font-size:18px;margin:2px 0 0 67px}
main .models{margin-left:auto;margin-right:auto;justify-content:center;flex-wrap:wrap}
main .presets{margin-left:auto;margin-right:auto;justify-content:center;flex-wrap:wrap}
main .presets{display:grid;grid-template-columns:repeat(5,max-content);width:fit-content;max-width:100%;column-gap:8px;row-gap:8px}
main .presets button{min-width:74px;text-align:center;white-space:nowrap}
main .models button,main .presets button,.output .params button{margin:0;border-radius:12px;background:#202124;border:1px solid #555b66;box-shadow:none}
main .models button.active,main .presets button.active,.output .params button.active{background:#4b7ff5;border-color:#6e97fa}
.output .counts{display:flex;gap:7px;align-items:center}
.output .params{justify-content:center;align-items:center;gap:26px;flex-wrap:wrap}
.output .params{display:grid;grid-template-columns:max-content max-content;width:100%;column-gap:24px;row-gap:10px}
.output .params>div{display:flex;justify-content:center;flex-wrap:wrap}
.output .quick{justify-content:center;flex-wrap:wrap}
.output .actions{justify-content:center;flex-wrap:wrap}
.source-buttons{flex-wrap:wrap;align-items:center}
/* Keep the mask tool visible and remove the oversized limit column. */
main .source-area{padding-top:0}
main .mask-toolbar{position:static;display:flex;justify-content:center;align-items:center;min-height:48px;margin:6px 0 8px;right:auto;top:auto}
main .mask-toolbar button{border-radius:12px;background:#292b30;border:1px solid #555b66;padding:8px 18px}
main .mask-toolbar button,main .mask-toolbar button:not(:disabled){background:#4b7ff5;border-color:#6e97fa;color:#fff;font-size:15px;font-weight:700;box-shadow:0 5px 14px rgba(75,127,245,.25)}
main .mask-toolbar span{font-size:14px;color:#d7d7d7;font-weight:500}
main .dropbox{position:relative;height:250px;justify-content:center;padding:22px 62px 18px 22px;margin-top:0}
main .dropbox .slots{justify-content:center}
main .dropbox .limit{position:absolute;right:14px;top:12px;margin:0;padding:5px 9px;border-radius:10px;background:#1d1d1d;font-size:12px;line-height:1;white-space:nowrap}
main .dropbox .limit br{display:none}
main .dropbox .limit b{font-size:15px;margin:0 2px}
.output .counts button{min-width:34px;height:34px;padding:0 9px;border-radius:12px}
.output .counts input{width:48px;height:34px;border:1px solid #555b66;border-radius:12px;background:#202124;color:#fff;text-align:center;outline:none}
.output .counts input.active,.output .counts input:focus{background:#4b7ff5;border-color:#6e97fa}
main .presets button i{font-style:normal;font-size:10px;margin-left:4px;color:#dce5ff}
#modeContent{position:relative}.preset-menu{display:none;position:absolute;z-index:12;width:240px;max-height:260px;overflow:auto;background:#24262b;border:1px solid #555b66;border-radius:12px;padding:7px;box-shadow:0 15px 35px #000b}.preset-menu.show{display:grid;gap:5px}.preset-menu button{border:0;border-radius:8px;background:#30333a;padding:9px;text-align:left;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.preset-menu .save-preset{background:#4b7ff5;text-align:center}.preset-menu .clear-presets{color:#ff9a9a;text-align:center}
.preset-loading{padding:14px;text-align:center;color:#c7cbd4;font-size:12px}
.single-drop{overflow:hidden}.single-drop img{width:100%;height:100%;object-fit:contain}.single-drop small,.mini-drop small{position:absolute;left:8px;bottom:7px;background:#000b;border-radius:6px;padding:4px 7px}.single-drop,.mini-drop{position:relative}.mini-drop>div span{display:block;color:#999;font-size:12px;margin-top:7px}.sole-tool img{width:84px;height:74px;object-fit:cover;border-radius:8px;border:1px solid #555}
.output .counts{flex-wrap:nowrap;justify-content:center}
@media(max-width:1450px){.output .params{grid-template-columns:1fr}.output .counts{margin:auto}.output .params>div:first-child{margin:auto}main .presets{grid-template-columns:repeat(3,max-content)}}
.output .params>div:first-child button{min-height:36px;padding:7px 20px}
.banner{background-size:130% 130%,100% 100%;animation:bannerGlow 10s ease-in-out infinite alternate}
header .banner:before{inset:-18%;background-image:radial-gradient(circle,#277cff 1px,transparent 1.5px),radial-gradient(circle,#ff276f 1px,transparent 1.5px),radial-gradient(circle,#45f5a2 1px,transparent 1.5px);background-size:12px 12px,19px 19px,27px 27px;animation:particleDrift 22s linear infinite}
.banner .shoe{animation:shoePulse 6s ease-in-out infinite}
.banner em{animation:facePulse 7s ease-in-out infinite alternate}
@keyframes particleDrift{from{transform:translate3d(-2%,0,0)}to{transform:translate3d(10%,4%,0)}}
@keyframes bannerGlow{from{background-position:42% 45%,0 0}to{background-position:60% 58%,0 0}}
@keyframes shoePulse{0%,100%{filter:drop-shadow(0 0 3px #35aaff);opacity:.48}50%{filter:drop-shadow(0 0 12px #47d7ff);opacity:.72}}
@keyframes facePulse{from{filter:drop-shadow(0 0 5px #276cff);opacity:.28}to{filter:drop-shadow(0 0 18px #3c8cff);opacity:.45}}
@media(prefers-reduced-motion:reduce){.banner,.banner:before,.banner .shoe,.banner em{animation:none}}
/* Full-width neon header based on the supplied artwork. The image stays sharp;
   motion comes from lightweight CSS, so there is no large video download. */
.app>header{position:relative;isolation:isolate;background:#000;overflow:hidden}
.app>header:before{content:"";position:absolute;z-index:0;inset:-12% -5%;background:url("header-neon-strip.png") center center/cover no-repeat;opacity:.98;filter:saturate(1.08) contrast(1.06);transform:translate3d(-1.8%,0,0) scale(1.045);will-change:transform,filter;animation:neonHeaderPan 18s ease-in-out infinite alternate;pointer-events:none}
.app>header:after{content:"";position:absolute;z-index:1;inset:0;background-image:linear-gradient(90deg,rgba(0,0,0,.34) 0,rgba(0,0,0,.08) 30%,rgba(0,0,0,.12) 72%,rgba(0,0,0,.3) 100%),linear-gradient(105deg,transparent 0 42%,rgba(73,151,255,.02) 46%,rgba(143,211,255,.28) 50%,rgba(240,70,169,.12) 54%,transparent 58%);background-size:100% 100%,220% 100%;background-position:0 0,150% 0;animation:neonHeaderSweep 9s linear infinite;pointer-events:none}
.app>header .brand,.app>header .product,.app>header .banner,.app>header .login{position:relative;z-index:2;background:transparent;text-shadow:0 2px 8px #000,0 0 12px #000}
.app>header .banner:before{display:none}
.app>header .banner{animation:none}
.app>header .banner .shoe,.app>header .banner em{display:none}
.app>header .banner,.app>header .banner *{pointer-events:none}
.app>header .brand,.app>header .product{pointer-events:none}
.app>header .login{z-index:5;pointer-events:auto;cursor:pointer;min-height:48px;padding:0 16px;border-radius:10px;touch-action:manipulation;text-shadow:0 2px 8px #000}
@keyframes neonHeaderPan{0%{transform:translate3d(-1.8%,0,0) scale(1.045);filter:saturate(1.02) contrast(1.04) brightness(.92)}50%{filter:saturate(1.16) contrast(1.08) brightness(1.06)}100%{transform:translate3d(1.8%,-1%,0) scale(1.07);filter:saturate(1.08) contrast(1.06) brightness(.96)}}
@keyframes neonHeaderSweep{from{background-position:0 0,150% 0}to{background-position:0 0,-150% 0}}
@media(prefers-reduced-motion:reduce){.app>header:before,.app>header:after{animation:none}}
button:disabled,input:disabled{opacity:.38;cursor:not-allowed!important}.actions button:disabled{opacity:.55}.result{border-radius:8px;background-position:center;background-size:cover;cursor:pointer;text-shadow:0 1px 3px #000;border:1px solid #42557b}.sole-tool.active{border-color:var(--blue);box-shadow:0 0 0 2px rgba(75,127,245,.35);background:#0d1730}.login-dialog{width:430px;min-width:430px;z-index:100}.login-dialog>label{display:grid;grid-template-columns:64px 1fr;align-items:center;gap:10px;margin:16px 0}.login-dialog input{height:42px;border:1px solid #555b66;border-radius:9px;background:#0d0d0d;color:#fff;padding:0 12px;outline:none}.login-dialog input:focus{border-color:var(--blue);box-shadow:0 0 0 2px rgba(75,127,245,.22)}.login-status{min-height:24px;color:#ff9f9f;text-align:right}.account-dialog{width:430px;min-width:430px;z-index:100}.account-dialog #accountClose{border:0;background:transparent;color:#fff;font-size:24px}.account-actions{display:flex;justify-content:flex-end;gap:10px}.account-actions button{border:0;border-radius:8px;background:#292929;padding:9px 18px}.account-actions #refreshAccount{background:var(--blue)}.thumb,.pick{background-position:center!important;background-repeat:no-repeat!important}.login{cursor:pointer}.accountbar button{cursor:pointer}