:root{color-scheme:dark;--bg:#101012;--panel:#18181b;--raised:#202024;--line:#2c2c31;--text:#f4f4f5;--muted:#99999f;--red:#f04e43;--red-hover:#fa6258;--font:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI','Malgun Gothic',sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.6}button,input{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button,a,label{touch-action:manipulation}button{cursor:pointer}a{color:inherit}button:disabled{cursor:wait;opacity:.68}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--red);outline-offset:4px}input:focus-visible{outline-offset:-2px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;top:-80px;left:16px;background:var(--red);padding:12px;z-index:10}.skip-link:focus{top:12px}.site-header{max-width:1120px;margin:auto;min-height:96px;padding:0 36px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:23px;letter-spacing:-1px;font-weight:800}.brand-dot{color:var(--red)}.header-note{font-size:12px;color:var(--muted)}main{max-width:1120px;margin:0 auto;padding:54px 36px 36px}.eyebrow{font-size:10px;letter-spacing:1.7px;font-weight:700;color:#b1b1b7;display:flex;align-items:center;gap:8px}.red-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--red);vertical-align:middle}.intro h1{font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.4;letter-spacing:-1.5px;margin:13px 0 10px}.intro>p{margin:0;color:var(--muted);font-size:14px}.mobile-break{display:none}.input-panel{margin-top:30px;padding:25px 26px 21px;background:var(--panel);border:1px solid var(--line);border-radius:12px}form>label{font-size:12px;font-weight:600;display:block;margin-bottom:10px;color:#d3d3d8}.input-row{display:flex;gap:10px}.input-wrap{display:flex;align-items:center;position:relative;background:var(--bg);border:1px solid #38383e;border-radius:7px;flex:1;min-width:0;transition:border-color .2s}.input-wrap:focus-within{border-color:var(--red)}.link-icon{margin-left:17px;color:#888890;font-size:24px}input{width:100%;min-width:0;height:54px;border:0;border-radius:7px;background:transparent;color:var(--text);padding:0 40px 0 12px;font-size:14px}input::placeholder{color:#77777f;font-size:13px}.clear-input{position:absolute;right:7px;background:transparent;border:0;border-radius:4px;color:#aaaab0;width:30px;height:36px;font-size:22px}.clear-input:hover{color:white;background:#242428}.button{border:0;border-radius:7px;min-height:54px;padding:0 22px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:20px;transition:background .15s,transform .15s}.button-red{background:var(--red);color:#fff}.button-red:hover:not(:disabled){background:var(--red-hover)}.button-red:active:not(:disabled){transform:translateY(1px)}.input-help{font-size:11px;color:var(--muted);margin:11px 0 0}.error-text{color:#ff9c95;font-size:12px;line-height:1.7;margin:10px 0 0;overflow-wrap:anywhere}.empty-panel{margin-top:24px;min-height:245px;border:1px dashed #34343b;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:28px}.empty-frame{width:76px;height:48px;border:1px solid #45454e;border-radius:5px;display:flex;align-items:center;justify-content:center;background:#1a1a1f;color:#878790;font-family:'DM Sans',sans-serif;font-size:10px;letter-spacing:2px}.empty-panel h2{font-size:14px;font-weight:500;color:#c1c1c8;margin:17px 0 5px}.empty-panel p{font-size:12px;color:var(--muted);margin:0}.result-section{margin-top:28px}.result-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:12px}.result-top h2{font-size:14px;font-weight:600;margin:0}.result-top h2>span{margin-left:8px;padding:2px 7px;border-radius:4px;background:#2a2222;color:#fb8a82;font-size:11px}.result-id{color:var(--muted);font-size:11px;letter-spacing:.2px}.result-grid{display:grid;grid-template-columns:minmax(0,1fr) 296px;gap:18px;align-items:start}.preview-panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}.preview-stage{background:#080809;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center}.preview-stage img{width:100%;height:100%;object-fit:contain;display:block}.preview-meta{padding:13px 16px;display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:11px;color:#b7b7be}.preview-meta>span:first-child{display:flex;align-items:center;gap:6px}.quality-panel{background:var(--panel);padding:20px;border:1px solid var(--line);border-radius:10px}.quality-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.quality-header h3{margin:0;font-size:13px;font-weight:600}.quality-header>span{font-size:10px;font-weight:700;color:#bcbcc4;background:#29292f;border:1px solid #38383e;border-radius:4px;padding:1px 6px}fieldset{margin:0;padding:0;border:0;min-width:0}.quality-option{display:flex;align-items:center;gap:11px;position:relative;min-height:57px;padding:10px 12px;border:1px solid #33333a;border-radius:7px;cursor:pointer;margin-bottom:8px;transition:border-color .15s,background .15s}.quality-option:has(input:checked){border-color:var(--red);background:#2b1e20}.quality-option:hover{border-color:#77777f}.quality-option:has(input:focus-visible){outline:2px solid var(--red);outline-offset:3px}.quality-option input{appearance:none;width:14px;height:14px;flex:none;display:block;padding:0;margin:0;border:1px solid #676770;border-radius:50%;background:transparent}.quality-option input:checked{border:4px solid var(--red);background:white}.quality-copy{flex:1}.quality-name{display:block;font-size:12px;font-weight:500}.quality-size{display:block;font-size:10px;color:var(--muted);margin-top:1px}.best-tag{font-size:9px;color:#ff9d96;font-weight:700;white-space:nowrap;letter-spacing:.3px}.quality-note{font-size:10px;color:var(--muted);line-height:1.7;min-height:18px;margin:12px 0 17px}.download-button{width:100%;min-height:47px;font-size:12px;gap:16px}.original-link{display:flex;align-items:center;justify-content:center;gap:6px;font-size:11px;margin-top:13px;color:#c0c0c7;text-decoration:none;min-height:30px}.original-link:hover{color:white;text-decoration:underline}.download-status{font-size:11px;color:#b3c9b8;margin:4px 0 0}.how-to{margin-top:40px;border-top:1px solid var(--line);padding-top:25px}.how-to>h2{font-size:12px;margin:0 0 20px;color:#aaaab2;font-weight:500}.how-to ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.how-to li{display:flex;align-items:flex-start;gap:13px}.step-number{font-size:11px;letter-spacing:.5px;font-weight:600;color:var(--red);padding-top:3px}.how-to h3{margin:0;font-size:12px;font-weight:500}.how-to p{margin:5px 0 0;font-size:11px;color:var(--muted);line-height:1.8}.footnote{font-size:10px;color:#93939b;margin:28px 0 0}footer{max-width:1048px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:20px 0 28px;border-top:1px solid var(--line);color:#92929a;font-size:10px}footer>span:first-child{font-weight:800;letter-spacing:.7px}.spinner{width:16px;height:16px;border:2px solid #ffffff66;border-top-color:white;border-radius:50%;animation:spin .7s linear infinite}.noscript{text-align:center;color:#ff9c95}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}@media(max-width:800px){.site-header{padding:0 24px;min-height:80px}main{padding:36px 24px 28px}.result-grid{grid-template-columns:minmax(0,1fr) 260px;gap:14px}.quality-panel{padding:16px}.how-to ol{gap:18px}footer{margin:0 24px}.input-panel{padding:20px}.button{padding:0 18px}}@media(max-width:640px){.site-header{padding:0 20px;min-height:73px}.brand{font-size:21px;gap:9px}.brand img{width:28px;height:28px}.header-note{font-size:10px}main{padding:31px 20px 25px}.eyebrow{font-size:8px;letter-spacing:1.35px}.intro h1{font-size:30px;letter-spacing:-1px}.mobile-break{display:block}.intro>p{font-size:12px}.input-panel{margin-top:24px;padding:18px}.input-row{flex-direction:column;gap:12px}.input-wrap input{height:50px;font-size:13px}.input-wrap input::placeholder{font-size:11px}.input-row>.button{min-height:48px;justify-content:space-between;padding:0 18px;font-size:13px}.input-help{font-size:9px}.empty-panel{min-height:225px;padding:24px 18px}.empty-panel p{font-size:11px}.result-grid{grid-template-columns:1fr}.result-id{font-size:10px}.quality-panel{padding:20px}.quality-option{min-height:59px}.quality-name{font-size:13px}.quality-size{font-size:11px}.quality-note{font-size:11px}.download-button{min-height:50px;font-size:13px}.original-link{font-size:12px;min-height:34px}.how-to{margin-top:30px}.how-to ol{grid-template-columns:1fr;gap:18px}.how-to p{margin-top:3px}.footnote{font-size:10px;line-height:1.9}footer{margin:0 20px}.error-text{font-size:11px}}