:root{--bg: #fbfbfd;--surface: #ffffff;--subtle: #f5f5f7;--subtle-2: #ebebf0;--text: #1d1d1f;--text-2: #6e6e73;--text-3: #86868b;--accent: #0071e3;--accent-hover: #0077ed;--accent-soft: rgba(0, 113, 227, .08);--ok: #248a3d;--ok-soft: rgba(52, 199, 89, .12);--warn: #b25000;--warn-soft: rgba(255, 149, 0, .12);--err: #d70015;--err-soft: rgba(255, 59, 48, .1);--hair: rgba(0, 0, 0, .08);--shadow: 0 4px 24px -4px rgba(0, 0, 0, .04), 0 1px 2px rgba(0, 0, 0, .02);--shadow-hi: 0 12px 32px -6px rgba(0, 0, 0, .08), 0 2px 6px rgba(0, 0, 0, .03);--glass: rgba(251, 251, 253, .8);--radius: 24px;--font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, system-ui, sans-serif;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #000000;--surface: #161617;--subtle: #1d1d1f;--subtle-2: #2a2a2d;--text: #f5f5f7;--text-2: #a1a1a6;--text-3: #86868b;--accent: #2997ff;--accent-hover: #47a6ff;--accent-soft: rgba(41, 151, 255, .14);--ok: #30d158;--ok-soft: rgba(48, 209, 88, .14);--warn: #ffb340;--warn-soft: rgba(255, 159, 10, .14);--err: #ff6961;--err-soft: rgba(255, 69, 58, .14);--hair: rgba(255, 255, 255, .1);--shadow: 0 1px 2px rgba(0, 0, 0, .4);--shadow-hi: 0 10px 30px rgba(0, 0, 0, .5);--glass: rgba(22, 22, 23, .8);color-scheme:dark}}*,*:before,*:after{box-sizing:border-box}html{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%}body{margin:0;line-height:1.55;letter-spacing:-.011em;background:var(--bg);min-height:100vh;display:flex;flex-direction:column}main{flex:1}h1,h2,h3{letter-spacing:-.028em;line-height:1.15;margin:0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img,canvas{max-width:100%}button,input,select{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:8px}.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}.wrap{max-width:1080px;margin:0 auto;padding:0 16px}.narrow{max-width:760px;margin:0 auto;padding:0 16px}[hidden]{display:none!important}.site-header{position:sticky;top:0;z-index:40;background:var(--glass);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--hair)}.site-header .wrap{height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--text);font-size:16px}.brand:hover{text-decoration:none}.brand{letter-spacing:-.02em}.brand-mark{width:32px;height:32px;border-radius:9px;display:block;flex:none;box-shadow:0 0 0 1px var(--hair)}.brand-mark-sm{width:24px;height:24px;border-radius:7px}.footer-brand{display:grid;gap:8px}.footer-brand p{margin:0}.footer-brand .brand{font-size:14px}.nav{display:flex;gap:4px;background:var(--subtle);padding:4px;border-radius:999px;border:1px solid var(--hair);overflow-x:auto;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{white-space:nowrap;padding:5px 14px;border-radius:999px;font-size:13px;font-weight:500;color:var(--text-2)}.nav a:hover{color:var(--text);text-decoration:none}.nav a[aria-current=page]{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}.nav-mobile{display:none;border-top:1px solid var(--hair)}.nav-mobile .nav{background:transparent;border:0;padding:8px 12px;border-radius:0}@media(max-width:860px){.site-header .nav-desktop{display:none}.nav-mobile{display:block}}.hero{text-align:center;padding:44px 0 24px}.eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);background:var(--accent-soft);padding:5px 12px;border-radius:999px;margin-bottom:16px}.hero h1{font-size:clamp(30px,5.4vw,50px);font-weight:600}.hero p{font-size:clamp(16px,2.2vw,19px);color:var(--text-2);margin:14px auto 0;max-width:600px}.card{background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius);box-shadow:var(--shadow)}.card-link{display:block;padding:20px;color:var(--text);transition:transform .28s cubic-bezier(.16,1,.3,1),box-shadow .28s cubic-bezier(.16,1,.3,1)}.card-link:hover{transform:translateY(-2px);box-shadow:var(--shadow-hi);text-decoration:none}.card-link h3{font-size:16px;display:flex;justify-content:space-between;gap:8px}.card-link h3 span{font-size:12px;color:var(--accent);font-weight:500;letter-spacing:0}.card-link p{margin:6px 0 0;font-size:13px;color:var(--text-2)}.grid-2{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;border-radius:999px;padding:13px 26px;font-size:15px;font-weight:500;transition:background .15s,transform .1s}.btn:active{transform:scale(.98)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);text-decoration:none}.btn-secondary{background:var(--subtle);color:var(--text)}.btn-secondary:hover{background:var(--subtle-2)}.btn-small{padding:7px 14px;font-size:13px}.btn-link{background:none;border:0;color:var(--accent);cursor:pointer;padding:4px 6px;font-size:13px;font-weight:500}.pill-group{display:inline-flex;background:var(--subtle);border:1px solid var(--hair);border-radius:999px;padding:3px;gap:2px;flex-wrap:wrap}.pill-group button{border:0;background:none;cursor:pointer;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:500;color:var(--text-2)}.pill-group button:hover{color:var(--text)}.pill-group button[aria-pressed=true]{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}.field{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);background:var(--subtle);border:1px solid var(--hair);border-radius:999px;padding:4px 6px 4px 14px}.field select,.field input[type=number],.field input[type=text]{border:0;background:var(--surface);border-radius:999px;padding:5px 10px;font-size:13px;color:var(--text);min-width:0}.field input[type=number]{width:84px}.field input[type=range]{accent-color:var(--accent);width:120px}.text-input{width:100%;border:1px solid var(--hair);background:var(--surface);border-radius:12px;padding:11px 14px;font-size:15px}.ws{padding:24px;max-width:760px;margin:0 auto}@media(min-width:640px){.ws{padding:36px 40px}}.ws-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.privacy-pill{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:500;background:var(--subtle);padding:6px 14px;border-radius:999px}.dot{width:8px;height:8px;border-radius:50%;background:#34c759;flex:none}.ws-controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.drop{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;border:1.5px dashed var(--hair);border-color:color-mix(in srgb,var(--text) 18%,transparent);background:var(--bg);border-radius:18px;padding:48px 20px;cursor:pointer;transition:border-color .2s,background .2s,transform .2s}.drop:hover,.drop.is-over{border-color:var(--accent);background:var(--accent-soft)}.drop.is-over{transform:scale(1.01)}.drop-icon{width:56px;height:56px;border-radius:16px;background:var(--surface);border:1px solid var(--hair);box-shadow:var(--shadow);display:grid;place-items:center;margin-bottom:16px;color:var(--accent)}.drop-title{font-size:18px;font-weight:600;margin:0}.drop-title u{color:var(--accent);text-decoration-color:color-mix(in srgb,var(--accent) 35%,transparent);text-underline-offset:4px}.drop-hint{font-size:14px;color:var(--text-2);margin:6px 0 0;max-width:440px}.queue{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:8px;max-height:320px;overflow-y:auto}.queue li{display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--subtle);padding:9px 12px;border-radius:12px;font-size:13px}.queue .q-name{display:flex;align-items:center;gap:10px;min-width:0}.queue .q-name b{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.queue .q-num{width:22px;height:22px;border-radius:6px;background:var(--surface);display:grid;place-items:center;font-weight:600;font-size:12px;flex:none}.queue .q-size{color:var(--text-2);flex:none}.queue .q-actions{display:flex;gap:2px;flex:none}.queue .q-actions button{border:0;background:none;cursor:pointer;padding:4px 8px;border-radius:8px;color:var(--text-2)}.queue .q-actions button:hover{background:var(--surface);color:var(--text)}.queue-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-size:14px;font-weight:600}.actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}@media(max-width:520px){.actions .btn{width:100%}}.processing{text-align:center;padding:40px 0}.spinner{width:40px;height:40px;border-radius:50%;border:2.5px solid var(--accent-soft);border-top-color:var(--accent);animation:spin .9s linear infinite;margin:0 auto 16px}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.spinner{animation-duration:3s}}.progress{height:8px;background:var(--subtle);border-radius:999px;overflow:hidden;max-width:380px;margin:12px auto 0}.progress>div{height:100%;background:var(--accent);border-radius:999px;width:0;transition:width .2s ease-out}.processing .label{font-size:13px;color:var(--text-2);margin-top:12px;min-height:1.5em}.processing .fname{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.done{text-align:center;padding:12px 0}.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:5px 14px;border-radius:999px;background:var(--ok-soft);color:var(--ok)}.badge.warn{background:var(--warn-soft);color:var(--warn)}.done h3{font-size:20px;margin:16px 0 6px;word-break:break-all}.notes{list-style:none;padding:0;margin:8px auto 20px;max-width:520px;font-size:14px;color:var(--text-2);display:grid;gap:4px}.notes li.warn{color:var(--warn)}.thumb{display:block;margin:0 auto 20px;max-height:260px;width:auto;border-radius:10px;border:1px solid var(--hair);box-shadow:var(--shadow);background:#fff}.ws-error{margin:16px 0 0;padding:12px 16px;border-radius:12px;background:var(--err-soft);color:var(--err);font-size:14px}.options{display:grid;gap:16px}.options .row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.options label.radio{display:flex;gap:8px;align-items:center;font-size:14px;cursor:pointer}.muted{color:var(--text-2);font-size:13px}.ad-slot{margin:32px auto;display:flex;align-items:center;justify-content:center;overflow:hidden}.ad-top{min-height:90px;max-width:760px}.ad-bottom{min-height:280px;max-width:760px}.article{margin-top:56px;padding-top:48px;border-top:1px solid var(--hair);color:var(--text)}.article h2{font-size:26px;font-weight:600;margin:40px 0 12px}.article h3{font-size:19px;font-weight:600;margin:28px 0 8px}.article p,.article li{font-size:16px;color:color-mix(in srgb,var(--text) 85%,var(--bg))}.article ul,.article ol{padding-inline-start:22px;padding-left:0;padding-inline-end:0}.article li{margin:6px 0}.article table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px;background:var(--surface);border:1px solid var(--hair);border-radius:16px;overflow:hidden;display:block;overflow-x:auto}.article th,.article td{text-align:start;padding:11px 14px;border-bottom:1px solid var(--hair)}.article th{background:var(--subtle);font-weight:600}.article code{background:var(--subtle);padding:1px 6px;border-radius:6px;font-size:.9em}.faq{display:grid;gap:10px;margin-top:16px}.faq details{padding:16px 20px}.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;font-weight:500;font-size:15px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--text-2);font-size:20px;line-height:1;transition:transform .2s}.faq details[open] summary:after{transform:rotate(45deg)}.faq details p{margin:10px 0 0;font-size:14px;color:var(--text-2)}.section-title{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin:72px 0 16px}.section-title h2{font-size:20px;font-weight:600}.site-footer{border-top:1px solid var(--hair);background:var(--subtle);margin-top:88px;padding:40px 0;font-size:13px;color:var(--text-2)}.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px}.site-footer nav{display:flex;flex-wrap:wrap;gap:8px 20px}.site-footer a{color:var(--text-2)}.site-footer a:hover{color:var(--text)}.prose{padding-top:40px}.prose h1{font-size:36px;margin-bottom:16px}.prose h2{font-size:22px;margin:32px 0 8px}.prose p,.prose li{color:color-mix(in srgb,var(--text) 85%,var(--bg))}.img-preview{margin:0 auto 20px;max-width:520px}.img-stage{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--hair);box-shadow:var(--shadow);background:repeating-conic-gradient(color-mix(in srgb,var(--text) 7%,transparent) 0% 25%,transparent 0% 50%) 50% / 16px 16px}.img-stage img{display:block;width:100%;max-height:340px;object-fit:contain}.img-tag{position:absolute;inset-inline-start:10px;top:10px;font-size:11px;font-weight:600;padding:3px 9px;border-radius:999px;background:#0009;color:#fff}.img-tag.orig{background:var(--accent)}.img-preview figcaption{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin-top:10px}[data-el=compare]{user-select:none;-webkit-user-select:none;touch-action:none}.file-results{list-style:none;padding:0;margin:0 auto 20px;max-width:560px;text-align:start;display:grid;gap:6px;max-height:300px;overflow-y:auto}.file-results li{display:flex;justify-content:space-between;gap:12px;align-items:center;background:var(--subtle);border-radius:12px;padding:8px 12px;font-size:13px}.file-results .fr-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;font-weight:500}.file-results .fr-size{flex:none;color:var(--text-2)}.file-results .fr-pct{flex:none;font-weight:600;color:var(--ok);min-width:44px;text-align:end}.file-results .fr-pct.same{color:var(--text-3)}.notes .note-action{margin-inline-start:6px}.footer-side{display:grid;gap:12px;justify-items:end}@media(max-width:640px){.footer-side{justify-items:start}}.lang-switch{position:relative}.lang-switch summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--hair);border-radius:999px;background:var(--surface);color:var(--text);font-size:13px}.lang-switch summary::-webkit-details-marker{display:none}.lang-switch ul{position:absolute;inset-inline-end:0;bottom:calc(100% + 8px);z-index:30;list-style:none;margin:0;padding:6px;min-width:200px;max-height:60vh;overflow-y:auto;background:var(--surface);border:1px solid var(--hair);border-radius:14px;box-shadow:var(--shadow-hi)}@media(max-width:640px){.lang-switch ul{inset-inline-start:0;inset-inline-end:auto}}.lang-switch li a{display:block;padding:7px 12px;border-radius:8px;color:var(--text);font-size:14px}.lang-switch li a:hover{background:var(--subtle);text-decoration:none}.lang-switch li a[aria-current]{font-weight:600;color:var(--accent)}:lang(ja) body,:lang(ko) body{word-break:keep-all;line-break:strict}:lang(ja) .hero h1,:lang(ko) .hero h1{letter-spacing:-.01em}:lang(ar) body,:lang(ar) h1,:lang(ar) h2,:lang(ar) h3,:lang(ar) .brand,:lang(ar) .eyebrow,:lang(th) body,:lang(th) h1,:lang(th) h2,:lang(th) h3,:lang(th) .eyebrow{letter-spacing:0}:lang(ar) body{line-height:1.75}:lang(th) body{line-height:1.7}[dir=rtl] .brand{flex-direction:row}[dir=rtl] .queue .q-name,[dir=rtl] .file-results li{direction:rtl}.ltr{direction:ltr;unicode-bidi:isolate}[dir=rtl] .article code,[dir=rtl] .options code{direction:ltr;unicode-bidi:isolate;display:inline-block}