*{box-sizing:border-box;margin:0;padding:0}body{color:#fff;overscroll-behavior:none;-webkit-tap-highlight-color:transparent;background:#1a1a2e;min-height:100dvh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow-x:hidden}#app{max-width:480px;padding:calc(16px + env(safe-area-inset-top,0px)) clamp(12px, 4vw, 20px) calc(32px + env(safe-area-inset-bottom,0px));flex-direction:column;min-height:100dvh;margin:0 auto;display:flex}main{flex-direction:column;flex:1;gap:16px;display:flex}header{text-align:center;padding:8px 0}header h1{background:linear-gradient(135deg,gold,#ff8c00);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:clamp(22px,6vw,30px);font-weight:700}.subtitle{color:#9b9bb6;margin-top:4px;font-size:clamp(12px,3.5vw,14px);line-height:1.5}.sample-section{border-radius:16px;overflow:hidden}.sample-img{border-radius:16px;width:100%;height:auto;display:block}.upload-area{text-align:center;cursor:pointer;background:#ffffff08;border:2px dashed #444;border-radius:16px;min-height:180px;padding:clamp(32px,10vw,48px) 20px;transition:all .2s}.upload-area:active{transform:scale(.98)}.upload-area:hover{background:#ffd7000d;border-color:gold}.upload-icon{margin-bottom:12px;font-size:48px;display:block}.upload-area p{color:#aaa;font-size:15px;line-height:1.5}.preview-section{background:#111;border-radius:16px;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.preview-section canvas{touch-action:none;width:100%;height:auto;display:block}.processing{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#000000b3;flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex;position:absolute;inset:0}.spinner{border:4px solid #ffd70033;border-top-color:gold;border-radius:50%;width:48px;height:48px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.processing p{color:gold;font-size:14px}.drag-guide{pointer-events:none;z-index:10;justify-content:center;align-items:center;animation:.4s ease-out drag-guide-fade-in;display:flex;position:absolute;inset:0}.drag-guide.fade-out{animation:.6s ease-out forwards drag-guide-fade-out}.drag-guide-content{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);text-align:center;background:#0009;border-radius:16px;flex-direction:column;align-items:center;gap:8px;max-width:min(280px,100% - 24px);padding:16px 20px;display:flex}.drag-guide-icon{font-size:32px;animation:1.2s ease-in-out infinite drag-guide-bounce}.drag-guide-text{color:#fff;white-space:normal;font-size:13px;line-height:1.5}@keyframes drag-guide-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes drag-guide-fade-in{0%{opacity:0}to{opacity:1}}@keyframes drag-guide-fade-out{0%{opacity:1}to{opacity:0}}.controls{flex-direction:column;gap:10px;display:flex}.slider-row{align-items:center;gap:8px;display:flex}.slider-row label{color:#777;white-space:nowrap;width:42px;font-size:12px}.slider-row input[type=range]{appearance:none;cursor:pointer;background:0 0;flex:1;height:32px}.slider-row input[type=range]::-webkit-slider-runnable-track{background:#ffffff26;border-radius:2px;height:4px}.slider-row input[type=range]::-webkit-slider-thumb{appearance:none;background:gold;border:none;border-radius:50%;width:20px;height:20px;margin-top:-8px;box-shadow:0 1px 4px #0000004d}.slider-row input[type=range]::-moz-range-track{background:#ffffff26;border:none;border-radius:2px;height:4px}.slider-row input[type=range]::-moz-range-thumb{background:gold;border:none;border-radius:50%;width:20px;height:20px;box-shadow:0 1px 4px #0000004d}.hint{color:#7c7c98;text-align:center;margin:-2px 0 2px;font-size:11px;line-height:1.5}.edit-tools{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.btn-icon{color:#999;cursor:pointer;background:#ffffff14;border:none;border-radius:8px;min-height:44px;padding:10px 14px;font-size:13px;transition:all .2s}.btn-icon:active{background:#ffffff26;transform:scale(.92)}.hashtag-hint{color:#b2b2c8;text-align:center;cursor:pointer;overflow-wrap:anywhere;margin:0;font-size:12px;line-height:1.6;transition:color .2s}.hashtag-hint:active,.hashtag-hint strong{color:gold}.output-actions{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.btn{cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:6px;min-width:0;height:44px;padding:12px 8px;font-size:14px;font-weight:600;transition:all .2s;display:flex}.btn:active{transform:scale(.95)}.btn-tweet{color:#fff;background:#000;border:1px solid #333}.btn-share{color:#fff;background:linear-gradient(135deg,#00b4d8,#0077b6)}.btn-primary{color:#1a1a2e;background:linear-gradient(135deg,gold,#ff8c00)}.toast{bottom:40px;bottom:calc(40px + env(safe-area-inset-bottom,0px));color:#1a1a2e;opacity:0;pointer-events:none;z-index:100;background:#fffffff2;border-radius:8px;width:max-content;max-width:calc(100vw - 32px);padding:10px 20px;font-size:14px;font-weight:600;transition:all .3s;position:fixed;left:50%;transform:translate(-50%)translateY(20px)}.toast.show{opacity:1;transform:translate(-50%)translateY(0)}footer{text-align:center;margin-top:auto;padding:28px 0 0}footer p{color:#8f8faa;font-size:12px;line-height:1.6}.oss-credits{color:#73738f;margin-top:12px;font-size:11px}.oss-credits summary{cursor:pointer;color:#8f8faa}.oss-credits ul{text-align:left;flex-direction:column;gap:8px;margin-top:8px;list-style:none;display:flex}.oss-credits a{color:#b9b9d0;text-decoration:underline}.hidden{display:none!important}@media (width<=360px){#app{padding-left:10px;padding-right:10px}.output-actions{grid-template-columns:repeat(2,minmax(0,1fr))}.btn-primary{grid-column:1/-1}.btn,.btn-icon{font-size:13px}}@media (height<=480px) and (orientation:landscape){#app{min-height:auto}header{padding-top:2px}.sample-section,.upload-area,.preview-section{max-width:100%}footer{margin-top:20px}}