:root{--bg:#f7f8fb;--surface:#fff;--text:#1c2433;--muted:#66728a;--border:#e6e9f0;--brand:#e5322d;--brand-dark:#c2241f;--shadow:0 1px 2px #1018280a, 0 8px 24px #1018280f;--radius:14px;color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0;padding:0}body{background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}.container{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}.site-header{z-index:50;-webkit-backdrop-filter:saturate(180%)blur(10px);backdrop-filter:saturate(180%)blur(10px);border-bottom:1px solid var(--border);background:#ffffffd9;position:sticky;top:0}.site-header .inner{justify-content:space-between;align-items:center;height:64px;display:flex}.logo{letter-spacing:-.02em;align-items:center;gap:10px;font-size:20px;font-weight:800;display:flex}.logo-mark{background:var(--brand);color:#fff;border-radius:9px;place-items:center;width:34px;height:34px;font-size:13px;font-weight:800;display:grid}.nav{align-items:center;gap:6px;display:flex}.nav a{color:var(--muted);border-radius:9px;padding:8px 14px;font-size:14px;font-weight:600;transition:all .15s}.nav a:hover{background:var(--bg);color:var(--text)}.nav a.active{color:var(--brand)}.header-btn{padding:9px 16px;font-size:14px}.toolbar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);flex-wrap:wrap;justify-content:center;gap:18px 22px;margin-bottom:30px;padding:16px 18px;display:flex}.toolbar-group{flex-direction:column;gap:8px;display:flex}.toolbar-label{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-size:11px;font-weight:700}.toolbar-pills{flex-wrap:wrap;gap:6px;display:flex}.pill{background:var(--bg);border:1px solid var(--border);color:var(--text);white-space:nowrap;border-radius:9px;padding:7px 12px;font-size:13px;font-weight:600;transition:all .14s}.pill:hover{border-color:var(--brand);color:var(--brand)}.pill.active{color:#fff;background:var(--brand);border-color:var(--brand)}.cat-section{padding:8px 0}.cat-section h2{letter-spacing:-.02em;margin:28px 0 4px;font-size:22px}.cat-section .cat-sub{color:var(--muted);margin:0 0 4px;font-size:14px}.hero{text-align:center;padding:64px 0 36px}.hero h1{letter-spacing:-.03em;margin:0 0 16px;font-size:clamp(32px,5vw,52px);font-weight:800;line-height:1.05}.hero h1 .accent{color:var(--brand)}.hero p{max-width:620px;color:var(--muted);margin:0 auto;font-size:18px;line-height:1.6}.badge{border:1px solid var(--border);box-shadow:var(--shadow);color:var(--muted);background:#fff;border-radius:999px;align-items:center;gap:8px;margin-bottom:22px;padding:6px 14px;font-size:13px;font-weight:600;display:inline-flex}.badge .dot{background:#16a34a;border-radius:50%;width:8px;height:8px}.tool-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;padding:28px 0 64px;display:grid}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;transition:transform .18s,box-shadow .18s,border-color .18s;display:block}.tool-card:hover{border-color:#d7dbe6;transform:translateY(-4px);box-shadow:0 12px 30px #1018281f}.tool-icon{border-radius:12px;place-items:center;width:52px;height:52px;margin-bottom:16px;display:grid}.tool-card h3{letter-spacing:-.01em;margin:0 0 6px;font-size:18px}.tool-card p{color:var(--muted);margin:0;font-size:14px;line-height:1.55}.tool-page{padding:44px 0 80px}.tool-head{text-align:center;margin-bottom:30px}.tool-head .tool-icon{width:60px;height:60px;margin:0 auto 16px}.tool-head h1{letter-spacing:-.02em;margin:0 0 10px;font-size:clamp(28px,4vw,40px)}.tool-head p{color:var(--muted);max-width:560px;margin:0 auto;font-size:17px}.breadcrumb{color:var(--muted);margin-bottom:18px;font-size:14px}.breadcrumb a:hover{color:var(--brand)}.dropzone{border:2px dashed var(--border);background:var(--surface);text-align:center;cursor:pointer;border-radius:18px;padding:48px 24px;transition:all .18s}.dropzone:hover,.dropzone.drag{border-color:var(--brand);background:#fff7f6}.dropzone .big{margin:14px 0 6px;font-size:18px;font-weight:700}.dropzone .sub{color:var(--muted);font-size:14px}.dz-btn{background:var(--brand);color:#fff;border:none;border-radius:10px;margin-top:18px;padding:13px 26px;font-size:15px;font-weight:700;display:inline-block}.btn{border:none;border-radius:10px;padding:13px 24px;font-size:15px;font-weight:700;transition:all .15s}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark)}.btn-primary:disabled{opacity:.55;cursor:not-allowed}.btn-ghost{background:var(--surface);border:1px solid var(--border);color:var(--text)}.btn-ghost:hover{border-color:#cbd1de}.actions{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:24px;display:flex}.file-list{flex-direction:column;gap:10px;margin-top:24px;display:flex}.file-row{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;align-items:center;gap:14px;padding:12px 16px;display:flex}.file-row .grip{color:#b8c0d0;cursor:grab;font-size:18px;line-height:1}.file-row.dragging{opacity:.5}.file-thumb{object-fit:cover;border:1px solid var(--border);background:#f1f3f8;border-radius:6px;flex:none;width:40px;height:52px}.file-meta{flex:1;min-width:0}.file-meta .name{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.file-meta .size{color:var(--muted);font-size:12px}.icon-btn{color:var(--muted);background:0 0;border:none;border-radius:8px;padding:6px;font-size:18px;line-height:1}.icon-btn:hover{background:var(--bg);color:var(--brand)}.options{flex-wrap:wrap;justify-content:center;gap:18px;margin-top:26px;display:flex}.option{color:var(--muted);text-align:left;flex-direction:column;gap:6px;font-size:13px;font-weight:600;display:flex}.option select,.option input{border:1px solid var(--border);color:var(--text);background:#fff;border-radius:9px;min-width:150px;padding:9px 12px;font-family:inherit;font-size:14px}.preview-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px;margin-top:26px;display:grid}.preview-item{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);text-align:center;border-radius:12px;padding:10px}.preview-item img{border:1px solid var(--border);border-radius:6px;width:100%;display:block}.preview-item .pg{color:var(--muted);margin:8px 0 6px;font-size:12px}.status{text-align:center;color:var(--muted);margin-top:22px;font-size:14px}.spinner{border:4px solid var(--border);border-top-color:var(--brand);border-radius:50%;width:38px;height:38px;margin:0 auto 14px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.progress{background:var(--border);border-radius:999px;max-width:360px;height:8px;margin:14px auto 0;overflow:hidden}.progress>span{background:var(--brand);height:100%;transition:width .2s;display:block}.error{color:var(--brand-dark);text-align:center;background:#fdecea;border:1px solid #f7c9c5;border-radius:10px;margin-top:20px;padding:12px 16px;font-size:14px}.features{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;padding:24px 0 60px;display:grid}.feature{text-align:center;padding:8px}.feature .fi{margin-bottom:8px;font-size:26px}.feature h4{margin:0 0 6px;font-size:16px}.feature p{color:var(--muted);margin:0;font-size:14px;line-height:1.5}.site-footer{border-top:1px solid var(--border);background:var(--surface);margin-top:auto;padding:32px 0}.site-footer .inner{color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;font-size:14px;display:flex}.site-footer .links{flex-wrap:wrap;gap:18px;display:flex}.site-footer .links a:hover{color:var(--brand)}.app-shell{flex-direction:column;min-height:100vh;display:flex}.ad-slot{width:100%;margin:8px auto;display:block;overflow:hidden}.ad-tool{margin-top:40px}.tool-content{max-width:760px;margin:56px auto 0}.tool-content h2{letter-spacing:-.01em;margin:34px 0 14px;font-size:22px}.howto{flex-direction:column;gap:10px;margin:0;padding-left:22px;display:flex}.howto li{color:var(--text);padding-left:6px;font-size:15px;line-height:1.6}.faq{flex-direction:column;gap:10px;display:flex}.faq details{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;padding:4px 18px}.faq summary{cursor:pointer;justify-content:space-between;align-items:center;padding:14px 0;font-size:15px;font-weight:600;list-style:none;display:flex}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--muted);font-size:20px;font-weight:400}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--muted);margin:0 0 16px;font-size:14.5px;line-height:1.65}.prose{max-width:760px;margin:0 auto;padding:44px 0 80px}.prose h1{letter-spacing:-.02em;margin:0 0 6px;font-size:clamp(28px,4vw,38px)}.prose .updated{color:var(--muted);margin:0 0 26px;font-size:14px}.prose h2{margin:30px 0 10px;font-size:20px}.prose p,.prose li{color:var(--text);font-size:15px;line-height:1.7}.prose a{color:var(--brand);text-decoration:underline}