@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--bg:#fafafa;--surface:#fff;--surface-2:#f4f4f5;--border:#e4e4e7;--border-focus:#3b82f6;--ink:#09090b;--ink-2:#3f3f46;--muted:#71717a;--accent:#2563eb;--accent-dark:#1d4ed8;--accent-light:#dbeafe;--success:#16a34a;--warning:#d97706;--error:#dc2626;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 12px #00000014, 0 2px 6px #0000000a;--shadow-lg:0 12px 32px #0000001a, 0 4px 12px #0000000f;--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--radius-xl:28px;--font:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--mono:"SFMono-Regular", "SF Mono", Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-width:320px;font-size:15px;font-weight:400;line-height:1.6}body,button,input,textarea,select{font:inherit}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}strong{color:var(--ink);font-weight:600}h1,h2,h3{color:var(--ink);letter-spacing:-.02em;line-height:1.2}h1{font-size:clamp(1.8rem,4vw,2.75rem);font-weight:800}h2{font-size:clamp(1.4rem,2.5vw,2rem);font-weight:700}h3{font-size:1.05rem;font-weight:600}#app{width:100%}.page-wrap{max-width:980px;margin:0 auto;padding:0 20px 80px}.topbar{justify-content:space-between;align-items:center;gap:16px;margin-bottom:36px;padding:18px 0 0;display:flex}.brand{color:var(--ink);align-items:center;gap:10px;font-size:.95rem;font-weight:700;display:inline-flex}.brand-mark{background:var(--accent);color:#fff;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:.9rem;display:inline-flex}.top-links{gap:6px;display:flex}.top-links a{border-radius:var(--radius-sm);color:var(--muted);padding:6px 14px;font-size:.85rem;font-weight:500;transition:color .15s,background .15s}.top-links a:hover{color:var(--ink);background:var(--surface-2)}.hero-minimal{text-align:center;padding:8px 0 32px}.hero-badges{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:16px;display:inline-flex}.badge{border:1px solid var(--border);background:var(--surface);color:var(--muted);border-radius:999px;align-items:center;gap:5px;padding:4px 12px;font-size:.78rem;font-weight:500;display:inline-flex}.badge-blue{color:#1d4ed8;background:#eff6ff;border-color:#bfdbfe}.badge-green{color:#15803d;background:#f0fdf4;border-color:#bbf7d0}.hero-minimal h1{max-width:640px;margin:0 auto 10px;font-size:clamp(1.6rem,3.5vw,2.4rem)}.hero-minimal .sub{color:var(--muted);max-width:480px;margin:0 auto;font-size:.95rem}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);margin-bottom:60px;overflow:hidden}.tool-inner{grid-template-columns:minmax(280px,340px) 1fr;min-height:480px;display:grid}.tool-left{border-right:1px solid var(--border);flex-direction:column;gap:20px;padding:28px;display:flex}.tool-right{flex-direction:column;gap:18px;padding:28px;display:flex}.dropzone{border:2px dashed var(--border);border-radius:var(--radius-lg);background:var(--bg);cursor:pointer;text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:14px;min-height:240px;padding:28px 20px;transition:border-color .2s,background .2s;display:flex}.dropzone:hover,.dropzone.is-active{border-color:var(--accent);background:#eff6ff}.dropzone-icon{border-radius:var(--radius-md);background:var(--surface-2);border:1px solid var(--border);justify-content:center;align-items:center;width:52px;height:52px;font-size:1.5rem;display:flex}.dropzone-title{color:var(--ink-2);font-size:.9rem;font-weight:600}.dropzone-sub{color:var(--muted);font-size:.8rem}.drop-caption{color:var(--muted);overflow-wrap:anywhere;max-width:28ch;font-size:.82rem}.button{border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;border:1px solid #0000;justify-content:center;align-items:center;min-height:44px;padding:0 20px;font-size:.9rem;font-weight:600;transition:all .15s;display:inline-flex}.button:disabled{opacity:.45;cursor:not-allowed}.button-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 2px 8px #2563eb40}.button-primary:hover:not(:disabled){background:var(--accent-dark);border-color:var(--accent-dark);transform:translateY(-1px);box-shadow:0 4px 14px #2563eb59}.button-secondary{background:var(--surface);color:var(--ink-2);border-color:var(--border)}.button-secondary:hover:not(:disabled){background:var(--surface-2);border-color:#d4d4d8}.button-full{width:100%}.tool-buttons{flex-direction:column;gap:8px;display:flex}.status-message{min-height:40px;color:var(--muted);align-items:center;gap:6px;font-size:.85rem;display:flex}.status-message[data-state=working]{color:var(--accent)}.status-message[data-state=success]{color:var(--success)}.status-message[data-state=warning],.status-message[data-state=error]{color:var(--error)}.status-pill{letter-spacing:.03em;text-transform:uppercase;border:1px solid var(--border);background:var(--surface-2);color:var(--muted);border-radius:999px;align-items:center;padding:3px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.status-pill-success{color:var(--success);background:#f0fdf4;border-color:#bbf7d0}.status-pill-working{color:var(--accent);background:#eff6ff;border-color:#bfdbfe}.status-pill-error,.status-pill-warning{color:var(--error);background:#fef2f2;border-color:#fecaca}.file-meta{gap:6px;margin-top:4px;display:grid}.file-meta div{border-radius:var(--radius-sm);background:var(--surface-2);justify-content:space-between;gap:12px;padding:8px 12px;font-size:.82rem;display:flex}.file-meta dt{color:var(--muted)}.file-meta dd{font-family:var(--mono);text-align:right;overflow-wrap:anywhere;margin:0;font-size:.8rem}.preview-toolbar{border-radius:var(--radius-md);background:var(--surface-2);border:1px solid var(--border);justify-content:space-between;align-items:center;gap:14px;padding:12px 16px;display:flex}.preview-summary{align-items:center;gap:10px;min-width:0;display:flex}.preview-copy{flex-direction:column;gap:1px;min-width:0;display:flex}.preview-copy strong{overflow-wrap:anywhere;font-size:.88rem}.preview-copy span{color:var(--muted);overflow-wrap:anywhere;font-size:.8rem}.compare-frame{border-radius:var(--radius-lg);background:repeating-conic-gradient(var(--surface-2) 0% 25%, var(--surface) 0% 50%) 0 0 / 20px 20px;border:1px solid var(--border);flex:1;min-height:360px;position:relative;overflow:hidden}.compare-grid,.compare-pane{position:absolute;inset:0}.compare-pane img{object-fit:contain;background:repeating-conic-gradient(var(--surface-2) 0% 25%, var(--surface) 0% 50%) 0 0 / 20px 20px;width:100%;height:100%}.after-pane{overflow:hidden}.pane-label{color:#fff;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#00000080;border-radius:999px;padding:4px 10px;font-size:.75rem;font-weight:600;position:absolute;bottom:14px;left:14px}.compare-divider{background:#fff;width:2px;position:absolute;top:0;bottom:0;transform:translate(-50%);box-shadow:0 0 0 1px #0000001f}.compare-empty{text-align:center;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:24px;display:flex;position:absolute;inset:0}.compare-empty strong{color:var(--ink-2);font-size:.95rem}.compare-empty span{max-width:30ch;font-size:.85rem}.compare-frame:not(.empty) .compare-empty{display:none}.compare-overlay{z-index:3;text-align:center;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#ffffffd9;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:24px;display:flex;position:absolute;inset:0}.slider-wrap{color:var(--muted);gap:6px;margin-top:4px;font-size:.82rem;display:grid}.slider-wrap input{width:100%;accent-color:var(--accent)}.content-section{margin-top:72px}.section-label{background:var(--accent-light);color:var(--accent-dark);letter-spacing:.06em;text-transform:uppercase;border-radius:999px;margin-bottom:12px;padding:3px 10px;font-size:.75rem;font-weight:700;display:inline-block}.content-section h2{max-width:22ch;margin-bottom:28px}.steps-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.step-card{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm);padding:22px}.step-num{border-radius:var(--radius-sm);background:var(--accent);color:#fff;justify-content:center;align-items:center;width:32px;height:32px;margin-bottom:14px;font-size:.8rem;font-weight:700;display:inline-flex}.step-card h3{margin-bottom:8px}.step-card p{color:var(--muted);font-size:.88rem;line-height:1.55}.feature-grid{grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px;display:grid}.feature-card{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm);padding:22px}.feature-card h3{margin-bottom:8px;font-size:.95rem}.feature-card p{color:var(--muted);font-size:.88rem;line-height:1.55}.comparison-table{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm);margin-top:24px;overflow:hidden}.table-row{grid-template-columns:1.6fr .7fr .7fr;display:grid}.table-row span{border-bottom:1px solid var(--border);color:var(--muted);padding:14px 18px;font-size:.88rem}.table-row span+span{border-left:1px solid var(--border)}.table-row:last-child span{border-bottom:none}.table-head span{background:var(--surface-2);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2);font-size:.8rem;font-weight:700}.seo-article{grid-template-columns:1fr 260px;gap:32px;margin-top:24px;display:grid}.seo-prose{gap:14px;display:grid}.seo-prose p{color:var(--ink-2);font-size:.92rem;line-height:1.72}.seo-sidebar{align-self:start;position:sticky;top:24px}.keyword-card{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm);padding:20px}.keyword-card h3{margin-bottom:14px;font-size:.9rem}.keyword-list{gap:6px;list-style:none;display:grid}.keyword-list li{border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border);color:var(--ink-2);padding:8px 12px;font-size:.82rem}.mini-note{color:var(--muted);margin-top:14px;font-size:.82rem;line-height:1.55}.faq-list{gap:10px;margin-top:24px;display:grid}.faq-list details{border-radius:var(--radius-md);border:1px solid var(--border);background:var(--surface);overflow:hidden}.faq-list details[open]{box-shadow:var(--shadow-sm)}.faq-list summary{cursor:pointer;justify-content:space-between;align-items:center;gap:12px;padding:18px 22px;font-size:.92rem;font-weight:600;list-style:none;display:flex}.faq-list summary::-webkit-details-marker{display:none}.faq-arrow{color:var(--muted);flex-shrink:0;font-size:.75rem;transition:transform .2s}.faq-list details[open] .faq-arrow{transform:rotate(180deg)}.faq-list p{color:var(--muted);margin:0;padding:0 22px 18px;font-size:.88rem;line-height:1.65}.site-footer{border-top:1px solid var(--border);text-align:center;color:var(--muted);margin-top:80px;padding:28px 0;font-size:.82rem}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:30;background:var(--ink);color:#fff;border-radius:999px;padding:10px 16px;font-size:.85rem;transition:transform 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