:root,[data-theme="light"]{--primary:#E53935;--primary-dark:#c62828;--secondary:#111827;--bg:#FAFAFA;--surface:#ffffff;--text:#111827;--muted:#6b7280;--border:#E5E7EB;--radius:12px;--shadow:0 4px 24px rgba(0,0,0,0.08);--drop-hover:#fff5f5;--badge-bg:#ecfdf5;--badge-text:#065f46;--status-info-bg:#eff6ff;--status-info-text:#1e40af;--status-success-bg:#ecfdf5;--status-success-text:#065f46;--status-error-bg:#fef2f2;--status-error-text:#991b1b}[data-theme="dark"]{--bg:#0f1117;--surface:#1a1d27;--text:#e8eaed;--muted:#9aa0a6;--border:#2d3140;--shadow:0 4px 24px rgba(0,0,0,0.35);--drop-hover:#2a1f1f;--badge-bg:#0d3326;--badge-text:#6ee7b7;--status-info-bg:#1e293b;--status-info-text:#93c5fd;--status-success-bg:#0d3326;--status-success-text:#6ee7b7;--status-error-bg:#3b1212;--status-error-text:#fca5a5}*,*::before,*::after{box-sizing:border-box}body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;transition:background 0.2s,color 0.2s}body.loading{overflow:hidden}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(1100px,92%);margin:0 auto}.page-breadcrumb{max-width:1400px;margin:1rem auto 0;padding:0 clamp(1rem,4vw,1.25rem)}.breadcrumb-list{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:0.5rem 0.65rem;margin:0;padding:0;font-size:0.875rem;color:var(--muted)}.breadcrumb-item a{color:var(--primary);text-decoration:none;font-weight:500}.breadcrumb-item a:hover{text-decoration:underline}.breadcrumb-current{color:var(--text);font-weight:500}.breadcrumb-sep{color:var(--muted);user-select:none}.site-header{background:var(--surface);border-bottom:1px solid var(--border);padding:0.85rem 0;position:sticky;top:0;z-index:100}.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:1rem}.logo{font-size:1.25rem;font-weight:700;color:var(--text);text-decoration:none;white-space:nowrap}.logo span{color:var(--primary)}.header-actions{display:flex;align-items:center;gap:0.75rem}.theme-toggle,.nav-toggle{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:0.4rem 0.65rem;cursor:pointer;font-size:1.1rem;line-height:1;color:var(--text)}.nav-toggle{display:none}.main-nav .nav-links{display:flex;flex-wrap:wrap;gap:0.5rem 1rem;list-style:none;margin:0;padding:0}.nav-links a{color:var(--muted);font-weight:500;font-size:0.9rem;text-decoration:none;padding:0.25rem 0}.nav-links a:hover,.nav-links a.active{color:var(--primary)}.hero{text-align:center;padding:2.5rem 0 1.5rem}.hero h1{font-size:clamp(1.6rem,4vw,2.4rem);margin:0 0 0.75rem}.hero p{color:var(--muted);max-width:620px;margin:0 auto 1.25rem}.privacy-badge{display:inline-flex;align-items:center;gap:0.5rem;background:var(--badge-bg);color:var(--badge-text);padding:0.4rem 1rem;border-radius:999px;font-size:0.85rem;font-weight:600}.section-title{font-size:1.1rem;color:var(--muted);margin:0 0 1rem;font-weight:600;text-transform:uppercase;letter-spacing:0.04em}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1.25rem;padding-bottom:2.5rem}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.75rem 1.25rem 1.5rem;text-decoration:none;color:inherit;text-align:center;transition:transform 0.2s ease,box-shadow 0.2s ease,border-color 0.2s ease;display:flex;flex-direction:column;align-items:center;gap:0.55rem}.tool-card:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 12px 32px rgba(17,24,39,0.12);border-color:var(--primary);text-decoration:none}.tool-card:hover .icon{transform:scale(1.08);background:linear-gradient(145deg,rgba(229,57,53,0.22) 0%,rgba(229,57,53,0.1) 100%)}.tool-card-hidden{display:none!important}.tool-card-open{display:inline-block;margin-top:0.25rem;font-size:0.82rem;font-weight:700;color:var(--primary);opacity:0;transform:translateY(4px);transition:opacity 0.2s ease,transform 0.2s ease}.tool-card:hover .tool-card-open{opacity:1;transform:translateY(0)}.tool-mini-rating{background:#fffbeb;color:#b45309}.tool-card .icon{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:14px;background:linear-gradient(145deg,rgba(229,57,53,0.14) 0%,rgba(229,57,53,0.06) 100%);color:var(--primary);font-size:0;transition:transform 0.2s ease,background 0.2s ease}.tool-card .icon{width:4.75rem;height:4.75rem;margin-bottom:0.35rem}.drop-zone .icon{width:4.25rem;height:4.25rem;margin-left:auto;margin-right:auto;margin-bottom:0.5rem;background:var(--drop-hover)}.drop-zone .icon::before,.tool-card .icon::before{content:"";display:block;background-color:currentColor;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center;-webkit-mask-size:contain;mask-size:contain}.tool-card .icon::before{width:2.4rem;height:2.4rem}.drop-zone .icon::before{width:2.25rem;height:2.25rem}.icon-pdf::before{-webkit-mask-image:url("../images/icons/pdf.svg");mask-image:url("../images/icons/pdf.svg")}.icon-img::before{-webkit-mask-image:url("../images/icons/images.svg");mask-image:url("../images/icons/images.svg")}.icon-sig::before{-webkit-mask-image:url("../images/icons/sign.svg");mask-image:url("../images/icons/sign.svg")}.icon-merge::before{-webkit-mask-image:url("../images/icons/merge.svg");mask-image:url("../images/icons/merge.svg")}.icon-split::before{-webkit-mask-image:url("../images/icons/split.svg");mask-image:url("../images/icons/split.svg")}.icon-delete::before{-webkit-mask-image:url("../images/icons/delete.svg");mask-image:url("../images/icons/delete.svg")}.icon-extract::before{-webkit-mask-image:url("../images/icons/extract.svg");mask-image:url("../images/icons/extract.svg")}.icon-rotate::before{-webkit-mask-image:url("../images/icons/rotate.svg");mask-image:url("../images/icons/rotate.svg")}.icon-organize::before{-webkit-mask-image:url("../images/icons/organize.svg");mask-image:url("../images/icons/organize.svg")}.icon-watermark::before{-webkit-mask-image:url("../images/icons/watermark.svg");mask-image:url("../images/icons/watermark.svg")}.icon-header::before{-webkit-mask-image:url("../images/icons/header.svg");mask-image:url("../images/icons/header.svg")}.icon-number::before{-webkit-mask-image:url("../images/icons/number.svg");mask-image:url("../images/icons/number.svg")}.icon-meta::before{-webkit-mask-image:url("../images/icons/meta.svg");mask-image:url("../images/icons/meta.svg")}.icon-protect::before{-webkit-mask-image:url("../images/icons/protect.svg");mask-image:url("../images/icons/protect.svg")}.icon-unlock::before{-webkit-mask-image:url("../images/icons/unlock.svg");mask-image:url("../images/icons/unlock.svg")}.icon-sign::before{-webkit-mask-image:url("../images/icons/sign.svg");mask-image:url("../images/icons/sign.svg")}.icon-images::before{-webkit-mask-image:url("../images/icons/images.svg");mask-image:url("../images/icons/images.svg")}.icon-toimg::before{-webkit-mask-image:url("../images/icons/toimg.svg");mask-image:url("../images/icons/toimg.svg")}.icon-form::before{-webkit-mask-image:url("../images/icons/form.svg");mask-image:url("../images/icons/form.svg")}.icon-compare::before{-webkit-mask-image:url("../images/icons/compare.svg");mask-image:url("../images/icons/compare.svg")}.icon-text::before{-webkit-mask-image:url("../images/icons/text.svg");mask-image:url("../images/icons/text.svg")}.icon-compress::before{-webkit-mask-image:url("../images/icons/compress.svg");mask-image:url("../images/icons/compress.svg")}.icon-edit::before{-webkit-mask-image:url("../images/icons/edit.svg");mask-image:url("../images/icons/edit.svg")}.tool-icon-row{display:flex;justify-content:center;margin-bottom:1rem}.tool-icon-row .icon{width:4rem;height:4rem}.compress-note{margin-top:1rem;padding:0.85rem 1rem;background:var(--status-info-bg);color:var(--status-info-text);border-radius:8px;font-size:0.85rem;line-height:1.5}.mode-warning{margin:0.75rem 0 0;padding:0.75rem 1rem;background:var(--status-info-bg);color:var(--status-info-text);border-radius:8px;font-size:0.85rem;line-height:1.5}.mode-warning-danger{background:#fff3e0;color:#8a4b00;border:1px solid #ffcc80}.compress-results{margin-top:1.25rem;padding-top:1.25rem;border-top:1px solid var(--border)}.compress-results-title{margin:0 0 0.75rem;font-size:1.05rem}.compress-results-table{width:100%;border-collapse:collapse;font-size:0.9rem}.compress-results-table th,.compress-results-table td{padding:0.5rem 0.75rem;text-align:left;border-bottom:1px solid var(--border)}.compress-results-table th{font-weight:600;width:42%;color:var(--muted)}.seo-content{width:100%;max-width:100%;margin:2.5rem 0 0;text-align:center}.seo-content h2{font-size:1.25rem;margin:0 0 1rem;text-align:center}.how-to-steps{width:100%;max-width:40rem;margin:0 auto;padding-left:1.5rem;line-height:1.7;color:var(--text);text-align:left;list-style-position:outside}.how-to-steps li{margin-bottom:0.65rem}.faq-section{width:100%;max-width:100%;margin-top:2rem}.faq-section h2{text-align:center}.faq-list{width:100%;max-width:100%;margin:0 auto;text-align:left}.tool-bottom-content{width:100%;margin-top:0.5rem}.faq-item{border:1px solid var(--border);border-radius:8px;margin-bottom:0.5rem;background:var(--surface);text-align:left}.faq-item summary{padding:0.85rem 1rem;cursor:pointer;font-weight:600;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::after{content:"+";float:right;font-weight:400;color:var(--muted)}.faq-item[open] summary::after{content:"−"}.faq-item p{margin:0;padding:0 1rem 1rem;color:var(--muted);font-size:0.9rem;line-height:1.6}.platform-promo{margin:2.5rem auto;max-width:100%;width:100%;padding:2rem 1.75rem 1.75rem;background:linear-gradient(160deg,var(--surface) 0%,var(--bg) 100%);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow)}.platform-promo-header{text-align:center;max-width:40rem;margin:0 auto 1.75rem}.platform-promo-badge{display:inline-block;margin-bottom:0.65rem;padding:0.35rem 0.85rem;background:var(--drop-hover);color:var(--primary);border-radius:999px;font-size:0.78rem;font-weight:700;letter-spacing:0.03em;text-transform:uppercase}.platform-promo-header h2{margin:0 0 0.65rem;font-size:clamp(1.35rem,2.5vw,1.75rem);line-height:1.25}.platform-promo-lead{margin:0;color:var(--muted);font-size:0.95rem;line-height:1.65}.platform-promo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;align-items:stretch}.platform-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.35rem 1.25rem 1.25rem;transition:transform 0.2s ease,box-shadow 0.2s ease,border-color 0.2s ease}.platform-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,0.08);border-color:rgba(229,57,53,0.35)}.platform-card-featured{border-color:rgba(229,57,53,0.45);box-shadow:0 8px 28px rgba(229,57,53,0.1);background:linear-gradient(180deg,var(--surface) 0%,var(--drop-hover) 100%)}.platform-card-top{display:flex;align-items:center;justify-content:space-between;gap:0.75rem;margin-bottom:0.85rem}.platform-card-icon{display:inline-flex;align-items:center;justify-content:center;width:3rem;height:3rem;border-radius:12px;background:var(--drop-hover);font-size:1.5rem;line-height:1}.platform-card-tag{padding:0.3rem 0.65rem;border-radius:999px;background:var(--bg);border:1px solid var(--border);color:var(--muted);font-size:0.72rem;font-weight:600;text-transform:uppercase;letter-spacing:0.04em;white-space:nowrap}.platform-card-title{margin:0 0 0.5rem;font-size:1.08rem;font-weight:700;line-height:1.3}.platform-card-desc{margin:0 0 1rem;color:var(--muted);font-size:0.86rem;line-height:1.55;flex:1}.platform-card-features{list-style:none;margin:0 0 1.25rem;padding:0}.platform-card-features li{position:relative;padding:0.28rem 0 0.28rem 1.25rem;font-size:0.84rem;color:var(--text);line-height:1.45}.platform-card-features li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}.platform-card-actions{display:flex;flex-direction:column;gap:0.55rem;margin-top:auto}.promo-btn{display:flex;align-items:center;justify-content:center;width:100%;min-height:44px;padding:0.7rem 1rem;border-radius:10px;font-size:0.9rem;font-weight:700;text-align:center;text-decoration:none;transition:transform 0.15s ease,box-shadow 0.15s ease,background 0.15s ease}.promo-btn:hover{text-decoration:none;transform:translateY(-1px)}.promo-btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(229,57,53,0.28)}.promo-btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:0 6px 18px rgba(229,57,53,0.35)}.promo-btn-secondary{background:var(--surface);color:#1a7f4b;border:2px solid #27ae60}.promo-btn-secondary:hover{background:#ecfdf5;color:#166534}@media (max-width:960px){.platform-promo-grid{grid-template-columns:1fr;max-width:28rem;margin:0 auto}}@media (max-width:520px){.platform-promo{padding:1.5rem 1rem}.platform-card-top{flex-wrap:wrap}}.option-group input[type="range"]{width:100%;max-width:100%}.tool-card h3{margin:0;font-size:1.05rem;font-weight:600}.tool-card p{margin:0;color:var(--muted);font-size:0.85rem;line-height:1.45;max-width:18rem}.tool-card.coming-soon{opacity:0.7}.tool-page{padding:1.5rem 0 3rem}.tool-page h1{margin:0 0 0.5rem;font-size:clamp(1.4rem,3vw,2rem)}.tool-page .subtitle{color:var(--muted);margin:0 0 1.5rem}.tool-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow)}.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:clamp(2rem,6vw,3rem) 1.5rem;text-align:center;cursor:pointer;transition:border-color 0.2s,background 0.2s}.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary);background:var(--drop-hover)}.drop-zone input[type="file"]{display:none}.drop-zone .icon{font-size:clamp(2rem,8vw,3rem);margin-bottom:0.5rem}.drop-zone .drop-title{font-size:1.05rem;font-weight:600;margin:0.25rem 0}.drop-zone p{margin:0.25rem 0;color:var(--muted);font-size:0.9rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.7rem 1.25rem;border:none;border-radius:8px;font-size:0.95rem;font-weight:600;cursor:pointer;transition:background 0.15s,opacity 0.15s;min-height:44px}.btn:disabled{opacity:0.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--border)}.actions{display:flex;flex-wrap:wrap;gap:0.65rem;margin-top:1.25rem}.file-list{list-style:none;margin:1.25rem 0 0;padding:0}.file-list li{display:flex;align-items:center;justify-content:space-between;padding:0.7rem 1rem;background:var(--bg);border-radius:8px;margin-bottom:0.5rem;gap:0.75rem}.file-list .name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-list .size{color:var(--muted);font-size:0.85rem;flex-shrink:0}.file-list .remove-btn{background:none;border:none;color:var(--primary);cursor:pointer;font-size:1.25rem;padding:0 0.25rem;min-width:44px;min-height:44px}.status{margin-top:1rem;padding:0.75rem 1rem;border-radius:8px;font-size:0.9rem;display:none}.status.show{display:block}.status.info{background:var(--status-info-bg);color:var(--status-info-text)}.status.success{background:var(--status-success-bg);color:var(--status-success-text)}.status.error{background:var(--status-error-bg);color:var(--status-error-text)}.status .desktop-fallback-inline{display:block;margin-top:0.5rem;font-size:0.85rem;opacity:0.92}.status .desktop-fallback-inline a{color:inherit;font-weight:600;text-decoration:underline}.hint.desktop-fallback{margin-top:0.75rem;font-size:0.9rem;color:var(--muted);line-height:1.5}.hint.desktop-fallback a{color:var(--accent);font-weight:600;text-decoration:none}.hint.desktop-fallback a:hover{text-decoration:underline}.progress-wrap{margin-top:1rem}.progress-label{font-size:0.8rem;color:var(--muted);margin-bottom:0.35rem}.progress-bar{height:8px;background:var(--border);border-radius:4px;overflow:hidden;display:none}.progress-bar.show{display:block}.progress-bar .fill{height:100%;background:var(--primary);width:0%;transition:width 0.25s}.global-spinner{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.45);z-index:9999;align-items:center;justify-content:center}.global-spinner.show{display:flex}.spinner-box{background:var(--surface);padding:2rem 2.5rem;border-radius:var(--radius);text-align:center;box-shadow:var(--shadow)}.spinner-ring{width:48px;height:48px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 0.8s linear infinite;margin:0 auto 1rem}.spinner-msg{margin:0;color:var(--muted);font-size:0.95rem}@keyframes spin{to{transform:rotate(360deg)}}.page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:0.75rem;margin-top:1.25rem}.page-thumb{border:2px solid var(--border);border-radius:8px;overflow:hidden;cursor:grab;position:relative;background:var(--surface);touch-action:manipulation}.page-thumb.sortable-ghost{opacity:0.4}.page-thumb canvas{width:100%;display:block}.page-thumb .page-num{text-align:center;padding:0.25rem;font-size:0.72rem;color:var(--muted);background:var(--bg)}.page-thumb .checkbox{position:absolute;top:6px;left:6px;width:20px;height:20px;cursor:pointer}.option-group{margin-top:1.25rem}.option-group label{display:block;font-weight:600;margin-bottom:0.45rem;font-size:0.95rem}.option-group input[type="text"],.option-group input[type="password"],.option-group input[type="number"],.option-group select{width:100%;max-width:100%;padding:0.65rem 0.75rem;border:1px solid var(--border);border-radius:8px;font-size:1rem;background:var(--bg);color:var(--text);min-height:44px}.option-group .hint{font-size:0.8rem;color:var(--muted);margin-top:0.35rem}.content-page{padding:2rem 0 3rem}.content-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:2rem;max-width:800px;margin:0 auto}.content-panel h2{margin-top:1.5rem}.content-panel h2:first-child{margin-top:0}.site-footer{text-align:center;padding:1.5rem 0;color:var(--muted);font-size:0.85rem;border-top:1px solid var(--border)}.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;margin-bottom:0.75rem}.footer-links a{color:var(--muted)}.footer-version{font-size:0.75rem;color:var(--muted);margin-top:0.35rem;opacity:0.85}.browser-unsupported{background:#fef2f2;color:#991b1b;padding:1rem;text-align:center;font-size:0.95rem;border-bottom:2px solid #fca5a5}[data-theme="dark"] .browser-unsupported{background:#3b1212;color:#fca5a5;border-color:#991b1b}.compare-table{width:100%;border-collapse:collapse;margin-top:1rem;font-size:0.9rem}.compare-table th,.compare-table td{border:1px solid var(--border);padding:0.6rem 0.75rem;text-align:left}.compare-table th{background:var(--bg)}.compare-zones{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.drop-zone.small{padding:1.5rem 1rem}.text-area-lg{width:100%;min-height:200px;padding:0.75rem;border:1px solid var(--border);border-radius:8px;font-size:1rem;font-family:inherit;background:var(--bg);color:var(--text);resize:vertical}.print-content{padding:2rem;line-height:1.6}@media print{.site-header,.site-footer,.tool-panel>*:not(#printPreview),.actions,.status{display:none!important}#printPreview{display:block!important}}@media (max-width:768px){.compare-zones{grid-template-columns:1fr}.nav-toggle{display:block}.main-nav{position:absolute;top:100%;left:0;right:0;background:var(--surface);border-bottom:1px solid var(--border);display:none;padding:1rem;box-shadow:var(--shadow)}.main-nav.open{display:block}.main-nav .nav-links{flex-direction:column;gap:0.75rem}.site-header .container{position:relative;flex-wrap:wrap}.tool-panel,.content-panel{padding:1.15rem}.actions .btn{flex:1 1 auto;min-width:calc(50% - 0.35rem)}}.container-wide{width:min(1280px,96%);margin:0 auto}.editor-page .subtitle{text-align:center;max-width:42rem;margin-left:auto;margin-right:auto}.editor-panel{padding:0;overflow:hidden}.editor-drop{padding:2.5rem 1.5rem;text-align:center;border-bottom:1px solid var(--border)}.tools-grid-featured{grid-template-columns:minmax(260px,360px);justify-content:center;margin-bottom:0.5rem}.tool-card-featured{border-color:rgba(229,57,53,0.45);background:linear-gradient(180deg,var(--surface) 0%,var(--drop-hover) 100%)}.editor-workspace{display:flex;flex-direction:column;min-height:520px}.editor-toolbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:0.75rem;padding:0.65rem 1rem;background:var(--bg);border-bottom:1px solid var(--border)}.editor-toolbar-group{display:flex;align-items:center;gap:0.35rem}.editor-toolbar-actions{margin-left:auto}.editor-tb-btn{min-width:2.25rem;min-height:2.25rem;padding:0.35rem 0.55rem;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text);font-weight:600;cursor:pointer}.editor-tb-btn:hover{border-color:var(--primary);color:var(--primary)}.editor-page-label,.editor-zoom-label{font-size:0.85rem;font-weight:600;min-width:5.5rem;text-align:center}.btn-sm{padding:0.5rem 0.85rem;min-height:38px;font-size:0.85rem}.editor-body{display:grid;grid-template-columns:148px 132px 1fr 168px;min-height:460px}.editor-sidebar{background:var(--bg);border-right:1px solid var(--border);padding:0.65rem 0.5rem;overflow-y:auto}.editor-sidebar-group{margin-bottom:0.85rem}.editor-sidebar-label{margin:0 0 0.35rem;padding:0 0.35rem;font-size:0.68rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--muted)}.editor-tool-btn{display:block;width:100%;text-align:left;padding:0.45rem 0.55rem;margin-bottom:0.2rem;border:none;border-radius:8px;background:transparent;color:var(--text);font-size:0.82rem;font-weight:600;cursor:pointer}.editor-tool-btn:hover{background:var(--surface);color:var(--primary)}.editor-tool-btn.active{background:var(--drop-hover);color:var(--primary)}.editor-thumbs-wrap{background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.editor-thumbs-title{margin:0;padding:0.5rem 0.65rem;font-size:0.72rem;font-weight:700;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--border)}.editor-thumbs{flex:1;overflow-y:auto;padding:0.5rem;display:flex;flex-direction:column;gap:0.5rem}.editor-thumbs .page-thumb{cursor:pointer;flex-shrink:0}.editor-thumbs .page-thumb.active{border-color:var(--primary);box-shadow:0 0 0 2px rgba(229,57,53,0.2)}.editor-thumbs .page-thumb.selected{box-shadow:0 0 0 2px rgba(59,130,246,0.55)}.editor-zoom-select{padding:0.35rem 0.5rem;border:1px solid var(--border);border-radius:8px;background:var(--surface);font-size:0.82rem;min-height:2.25rem}.editor-export-wrap{position:relative;display:inline-flex;align-items:stretch}.editor-export-wrap .btn-primary{border-radius:8px 0 0 8px}.editor-export-caret{border:none;border-radius:0 8px 8px 0;padding:0 0.5rem;background:var(--primary-dark);color:#fff;cursor:pointer;font-size:0.75rem}.editor-export-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:12rem;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);z-index:50;overflow:hidden}.editor-export-menu button,.editor-export-menu a{display:block;width:100%;text-align:left;padding:0.65rem 0.85rem;border:none;background:none;color:var(--text);font-size:0.85rem;text-decoration:none;cursor:pointer}.editor-export-menu button:hover,.editor-export-menu a:hover{background:var(--bg);text-decoration:none}.editor-context-menu{position:fixed;z-index:10000;min-width:10rem;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);overflow:hidden}.editor-context-menu button{display:block;width:100%;text-align:left;padding:0.55rem 0.85rem;border:none;background:none;font-size:0.85rem;cursor:pointer;color:var(--text)}.editor-context-menu button:hover{background:var(--bg)}.editor-annot-shape{position:absolute;border:2px solid var(--primary);border-radius:2px;pointer-events:none;box-sizing:border-box}.editor-annot-ellipse{border-radius:50%}.editor-annot-shape-svg{position:absolute;top:0;left:0;overflow:visible;pointer-events:none}.editor-annot-comment{position:absolute;background:#fff9c4;border:1px solid #f0d000;border-radius:4px;padding:0.35rem 0.45rem;font-size:0.78rem;line-height:1.35;box-shadow:0 2px 8px rgba(0,0,0,0.12);pointer-events:none}.editor-main{display:flex;flex-direction:column;min-width:0;background:#e8ebf0}[data-theme="dark"] .editor-main{background:#12151c}.editor-canvas-wrap{flex:1;overflow:auto;padding:1rem;display:flex;justify-content:center;align-items:flex-start}.editor-canvas-inner{position:relative;box-shadow:var(--shadow);background:#fff}.editor-canvas-inner canvas,.editor-annot-layer{position:absolute;top:0;left:0}.editor-inspector{background:var(--bg);border-left:1px solid var(--border);padding:0.65rem 0.55rem;overflow-y:auto}.editor-inspector-fields .option-group{margin-bottom:0.5rem}.editor-inspector-fields input[readonly]{background:var(--surface);color:var(--muted)}.editor-inspector-grid{display:grid;grid-template-columns:1fr 1fr;gap:0.35rem;margin-bottom:0.65rem}.editor-canvas-inner canvas,.editor-canvas-inner .canvas-container{position:absolute;top:0;left:0}#pageCanvas{z-index:1;pointer-events:none}.editor-canvas-inner .canvas-container{z-index:2}#drawCanvas{z-index:3;cursor:crosshair}.editor-annot-layer{z-index:3;pointer-events:none;width:100%;height:100%}.editor-annot-text{position:absolute;color:#1a1a2e;font-weight:600;white-space:pre-wrap;max-width:90%}.editor-annot-highlight{position:absolute;background:rgba(255,235,59,0.45);border-radius:2px}.editor-annot-image{position:absolute;background-size:contain;background-repeat:no-repeat;background-position:center;border:1px dashed var(--primary)}.editor-options{border-top:1px solid var(--border);background:var(--surface);padding:0.75rem 1rem;max-height:160px;overflow-y:auto}.editor-option-panel{display:none}.editor-option-panel.active{display:block}.editor-option-panel .hint{margin:0 0 0.65rem;font-size:0.82rem;color:var(--muted)}.editor-option-row{display:flex;flex-wrap:wrap;gap:0.5rem;margin-bottom:0.5rem}@media (max-width:960px){.editor-body{grid-template-columns:1fr;grid-template-rows:auto auto 1fr auto}.editor-inspector{border-left:none;border-top:1px solid var(--border);max-height:220px}.editor-sidebar{display:flex;flex-wrap:wrap;gap:0.35rem;border-right:none;border-bottom:1px solid var(--border)}.editor-sidebar-group{display:flex;flex-wrap:wrap;align-items:center;gap:0.25rem;margin-bottom:0}.editor-sidebar-label{width:100%}.editor-tool-btn{width:auto;display:inline-block}.editor-thumbs-wrap{max-height:140px;border-right:none;border-bottom:1px solid var(--border)}.editor-thumbs{flex-direction:row;overflow-x:auto;overflow-y:hidden}.editor-thumbs .page-thumb{width:72px}}.all-tools-dropdown-wrap .btn-all-tools.active + .tools-dropdown{display:flex!important}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.home-page{font-size:1.0625rem;line-height:1.65}.home-page .btn-lg{padding:0.85rem 1.5rem;font-size:1rem;min-height:48px}.home-sticky-bar{position:fixed;top:0;left:0;right:0;z-index:900;background:rgba(255,255,255,0.96);border-bottom:1px solid var(--border);box-shadow:0 4px 20px rgba(17,24,39,0.08);transform:translateY(-100%);transition:transform 0.25s ease;backdrop-filter:blur(8px)}.home-sticky-bar.is-visible{transform:translateY(0)}.home-sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:52px;padding:0.35rem 0}.home-sticky-logo{font-weight:800;font-size:1rem;color:var(--secondary);text-decoration:none;white-space:nowrap}.home-sticky-logo span{color:var(--primary)}.home-sticky-nav{display:flex;align-items:center;gap:0.85rem 1.25rem;flex-wrap:wrap;justify-content:flex-end}.home-sticky-nav a:not(.btn){font-size:0.88rem;font-weight:600;color:var(--muted);text-decoration:none}.home-sticky-nav a:not(.btn):hover{color:var(--primary)}.home-sticky-cta{min-height:36px;padding:0.45rem 1rem;font-size:0.85rem}.home-hero{position:relative;padding:5rem 0 5.5rem;overflow:hidden;background:linear-gradient(135deg,#fff5f5 0%,#ffffff 38%,#fef2f2 68%,#ffffff 100%);border-bottom:1px solid rgba(229,57,53,0.12)}.home-hero::before,.home-hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none;z-index:0}.home-hero::before{top:-140px;right:-60px;width:480px;height:480px;background:radial-gradient(circle,rgba(229,57,53,0.11) 0%,rgba(229,57,53,0) 68%)}.home-hero::after{bottom:-120px;left:-80px;width:400px;height:400px;background:radial-gradient(circle,rgba(229,50,45,0.08) 0%,rgba(229,50,45,0) 70%)}.home-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;align-items:center}.home-hero-brand{margin:0 0 0.5rem;font-size:1.1rem;font-weight:800;letter-spacing:0.02em;color:var(--secondary)}.home-hero-brand span{color:var(--primary)}.home-hero h1{margin:0 0 0.75rem;font-size:clamp(2rem,4.5vw,2.5rem);line-height:1.15;color:var(--secondary)}.home-hero-subtitle{margin:0 0 1.25rem;color:var(--muted);font-size:1.125rem;line-height:1.65;max-width:34rem}.privacy-badge-hero{display:inline-flex;margin-bottom:1.5rem;padding:0.55rem 1.1rem;font-size:0.88rem;background:rgba(255,255,255,0.88);color:#991b1b;border:1px solid rgba(229,57,53,0.22);border-radius:999px;box-shadow:0 2px 12px rgba(229,57,53,0.08)}.privacy-badge-hero strong{font-weight:700}.home-hero-actions{display:flex;flex-wrap:wrap;gap:0.75rem;margin-bottom:1.5rem}.home-hero-upload{margin-bottom:1.25rem;max-width:28rem}.hero-drop-zone{padding:1.75rem 1.25rem;margin-bottom:0.75rem;background:rgba(255,255,255,0.92);box-shadow:0 4px 20px rgba(229,57,53,0.07)}.hero-drop-zone .icon{width:3.5rem;height:3.5rem}.hero-drop-zone.dragover,.hero-drop-zone.hero-drop-ready{border-color:var(--primary);background:var(--drop-hover)}.hero-drop-zone.hero-drop-error{border-color:#dc2626;background:#fef2f2}.hero-choose-btn{background:none;border:none;padding:0;font:inherit;font-weight:700;color:var(--primary);cursor:pointer;text-decoration:underline}.hero-quick-actions{padding:0.85rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-quick-label{margin:0 0 0.65rem;font-size:0.82rem;font-weight:600;color:var(--muted);word-break:break-all}.hero-quick-row{display:flex;flex-wrap:wrap;gap:0.5rem;margin-bottom:0.65rem}.hero-quick-chip{padding:0.4rem 0.85rem;border:1px solid var(--border);border-radius:999px;background:var(--bg);font-size:0.82rem;font-weight:600;cursor:pointer;transition:border-color 0.15s,background 0.15s}.hero-quick-chip:hover{border-color:var(--primary)}.hero-quick-chip-primary{border-color:var(--primary);background:var(--drop-hover);color:var(--primary)}.hero-quick-open{width:100%}.home-hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;max-width:32rem}.home-stat{display:flex;flex-direction:column;gap:0.15rem}.home-stat-value{font-size:1.35rem;font-weight:800;color:var(--secondary)}.home-stat-label{font-size:0.82rem;color:var(--muted)}.hero-editor-preview{position:relative;background:var(--surface);border:1px solid rgba(229,57,53,0.1);border-radius:14px;overflow:hidden;box-shadow:0 24px 60px rgba(17,24,39,0.16),0 8px 32px rgba(229,57,53,0.1);max-width:420px;margin:0 auto}.hero-preview-chrome{display:flex;align-items:center;gap:6px;padding:0.55rem 0.85rem;background:#f3f4f6;border-bottom:1px solid var(--border)}.hero-preview-dot{width:8px;height:8px;border-radius:50%;background:#d1d5db}.hero-preview-url{margin-left:0.5rem;font-size:0.72rem;color:var(--muted);font-weight:500}.hero-preview-body{display:flex;min-height:240px}.hero-preview-sidebar{width:68px;padding:0.5rem;background:var(--bg);border-right:1px solid var(--border);display:flex;flex-direction:column;gap:0.4rem}.hero-preview-thumb{height:52px;border-radius:4px;border:2px solid var(--border);background:#fff}.hero-preview-thumb.active{border-color:var(--primary)}.hero-preview-canvas{flex:1;padding:1.25rem;background:#e8ebf0;position:relative}.hero-preview-line{height:8px;width:72%;background:#d1d5db;border-radius:4px;margin-bottom:0.5rem}.hero-preview-line.short{width:48%}.hero-preview-highlight{position:absolute;top:3.5rem;left:1.25rem;width:58%;height:14px;background:rgba(255,235,59,0.5);border-radius:2px}.hero-preview-sign{position:absolute;bottom:1.25rem;right:1.25rem;font-family:cursive;font-size:1.2rem;color:#1e3a5f;transform:rotate(-8deg)}.hero-preview-download{position:absolute;bottom:-14px;right:24px;width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.35rem;box-shadow:0 8px 24px rgba(229,57,53,0.4)}.home-hero-visual{display:flex;justify-content:center;align-items:center;padding-bottom:1rem}.trust-bar{background:var(--secondary);color:#fff;padding:0.85rem 0}.trust-bar-inner{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem 2rem}.trust-item{display:flex;align-items:center;gap:0.45rem;font-size:0.88rem;font-weight:600;white-space:nowrap}.trust-icon{font-size:1rem}.home-section{padding:5rem 0}.home-section-alt{background:#fafafa}.home-section-header{text-align:center;max-width:40rem;margin:0 auto 2.5rem}.home-section-header h2{margin:0 0 0.5rem;font-size:clamp(1.65rem,3vw,2rem);color:var(--secondary)}.home-section-lead{margin:0;color:var(--muted);font-size:1.0625rem;line-height:1.6}.home-tool-search{max-width:32rem;margin:0 auto 2rem}.home-search-label{display:block;margin-bottom:0.4rem;font-size:0.82rem;font-weight:700;text-transform:uppercase;letter-spacing:0.04em;color:var(--muted)}.home-search-input{width:100%;padding:0.85rem 1rem;border:1px solid var(--border);border-radius:10px;font-size:1rem;background:var(--surface);color:var(--text);transition:border-color 0.15s,box-shadow 0.15s}.home-search-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(229,57,53,0.12)}.home-search-empty{margin:0.65rem 0 0;font-size:0.9rem;color:var(--muted);text-align:center}.tool-count-badge{display:inline-block;vertical-align:middle;margin-left:0.35rem;padding:0.2rem 0.65rem;font-size:0.72rem;font-weight:700;background:var(--drop-hover);color:var(--primary);border-radius:999px;text-transform:uppercase;letter-spacing:0.04em}.home-popular{border-bottom:1px solid var(--border)}.tools-grid-popular{grid-template-columns:repeat(3,1fr)}.tool-card-popular{padding:2rem 1.25rem 1.75rem}.tool-card-labels{display:flex;flex-wrap:wrap;justify-content:center;gap:0.35rem;margin-top:-0.25rem}.tool-mini-label{display:inline-block;padding:0.15rem 0.5rem;font-size:0.68rem;font-weight:700;text-transform:uppercase;letter-spacing:0.04em;border-radius:999px;background:var(--drop-hover);color:var(--primary)}.home-tools-grid{padding-bottom:1.5rem}.home-all-tools .section-title{margin-top:1.5rem}.home-all-tools .section-title:first-of-type{margin-top:0}.home-editor-showcase{background:linear-gradient(135deg,var(--secondary) 0%,#1f2937 100%);color:#fff}.home-editor-inner{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;align-items:center}.home-editor-badge{display:inline-block;margin-bottom:0.75rem;padding:0.3rem 0.75rem;background:rgba(229,57,53,0.2);color:#fca5a5;border-radius:999px;font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em}.home-editor-showcase h2{margin:0 0 0.75rem;font-size:clamp(1.5rem,3vw,2.1rem);color:#fff}.home-editor-showcase .home-section-lead{color:#d1d5db;text-align:left;margin-bottom:1.5rem}.home-editor-features{list-style:none;margin:0 0 1.75rem;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:0.65rem 1rem}.home-editor-features li{display:flex;align-items:center;gap:0.5rem;font-weight:600;font-size:0.95rem}.mock-editor{background:var(--surface);border-radius:12px;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,0.35)}.mock-editor-bar{display:flex;align-items:center;gap:5px;padding:0.5rem 0.75rem;background:#f3f4f6;border-bottom:1px solid var(--border)}.mock-editor-bar span{width:8px;height:8px;border-radius:50%;background:#d1d5db}.mock-editor-tools{margin-left:auto;font-size:0.75rem;color:var(--muted);font-weight:600}.mock-editor-body{display:flex;min-height:220px}.mock-editor-sidebar{width:72px;padding:0.5rem;background:var(--bg);border-right:1px solid var(--border);display:flex;flex-direction:column;gap:0.4rem}.mock-thumb{height:48px;border-radius:4px;border:2px solid var(--border);background:#fff}.mock-thumb.active{border-color:var(--primary)}.mock-editor-canvas{flex:1;padding:1.25rem;background:#e8ebf0;position:relative}.mock-line{height:8px;width:70%;background:#d1d5db;border-radius:4px;margin-bottom:0.5rem}.mock-line.short{width:45%}.mock-highlight{position:absolute;top:3.5rem;left:1.25rem;width:55%;height:14px;background:rgba(255,235,59,0.5);border-radius:2px}.mock-signature{position:absolute;bottom:1.5rem;right:1.5rem;font-family:cursive;font-size:1.25rem;color:#1e3a5f;transform:rotate(-8deg)}.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.why-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:2rem 1.5rem;transition:transform 0.2s ease,box-shadow 0.2s ease,border-color 0.2s ease;box-shadow:0 2px 8px rgba(17,24,39,0.04)}.why-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(17,24,39,0.1);border-color:rgba(229,57,53,0.25)}.why-icon{display:flex;align-items:center;justify-content:center;width:3.5rem;height:3.5rem;margin-bottom:1rem;font-size:1.75rem;background:var(--drop-hover);border-radius:12px}.why-card h3{margin:0 0 0.5rem;font-size:1.1rem;color:var(--secondary)}.why-card p{margin:0;font-size:0.95rem;color:var(--muted);line-height:1.6}.home-compare{background:var(--surface)}.compare-table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border)}.home-compare-table{margin:0;font-size:0.92rem}.home-compare-table th{background:var(--bg);font-weight:700;color:var(--secondary)}.home-compare-table th:nth-child(2){color:var(--primary)}.compare-yes{color:#065f46;font-weight:600}.compare-no{color:#991b1b}.compare-partial{color:var(--muted)}.home-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;counter-reset:step}.home-step{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem 1.25rem;text-align:center;position:relative}.home-step-icon{display:flex;align-items:center;justify-content:center;width:3rem;height:3rem;margin:0 auto 0.85rem;background:var(--drop-hover);border-radius:50%;font-size:1.35rem}.home-step h3{margin:0 0 0.4rem;font-size:1rem;color:var(--secondary)}.home-step p{margin:0;font-size:0.85rem;color:var(--muted);line-height:1.5}.home-carousel-section{position:relative;overflow:hidden;background:linear-gradient(180deg,#ffffff 0%,#fff9f9 45%,#fefafa 100%);border-top:1px solid rgba(229,57,53,0.08);border-bottom:1px solid rgba(229,57,53,0.08)}.home-carousel-section::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 70% 80% at 50% 40%,rgba(229,57,53,0.045) 0%,transparent 70%);pointer-events:none;z-index:0}.home-carousel-section>.container{position:relative;z-index:1}.home-carousel-wrap{position:relative;display:flex;align-items:stretch;gap:0.75rem}.home-carousel-viewport{flex:1;min-width:0;overflow:hidden}.home-carousel-btn{flex-shrink:0;align-self:center;width:44px;height:44px;border:1px solid var(--border);border-radius:50%;background:#fff;color:var(--secondary);font-size:1.6rem;line-height:1;cursor:pointer;box-shadow:0 2px 8px rgba(17,24,39,0.06);transition:border-color 0.15s,background 0.15s,color 0.15s,box-shadow 0.15s,opacity 0.15s}.home-carousel-btn:hover:not(:disabled){border-color:var(--primary);background:var(--drop-hover);color:var(--primary);box-shadow:0 4px 14px rgba(229,57,53,0.15)}.home-carousel-btn:disabled{opacity:0.35;cursor:not-allowed}.home-carousel{display:flex;gap:1.5rem;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:0.25rem 0 0.75rem}.home-carousel::-webkit-scrollbar{display:none}.home-carousel:focus{outline:2px solid var(--primary);outline-offset:4px;border-radius:var(--radius)}.carousel-panel{flex:0 0 100%;scroll-snap-align:center;scroll-snap-stop:always;min-height:22rem;display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:16px;padding:1.5rem;box-shadow:0 8px 28px rgba(17,24,39,0.06);transition:border-color 0.2s ease,box-shadow 0.2s ease}.carousel-panel:hover{border-color:rgba(229,57,53,0.35);box-shadow:0 14px 36px rgba(17,24,39,0.1)}.carousel-mock{flex:1;min-height:11.5rem;background:linear-gradient(145deg,#f9fafb 0%,#f3f4f6 100%);border:1px solid #e5e7eb;border-radius:12px;margin-bottom:1.15rem;overflow:hidden}.carousel-mock-editor{display:flex;flex-direction:column}.carousel-mock-chrome{display:flex;align-items:center;gap:0.35rem;padding:0.45rem 0.65rem;background:#e5e7eb;border-bottom:1px solid #d1d5db}.carousel-mock-chrome span:not(.carousel-mock-url){width:7px;height:7px;border-radius:50%;background:#9ca3af}.carousel-mock-chrome span:first-child{background:#ef4444}.carousel-mock-chrome span:nth-child(2){background:#f59e0b}.carousel-mock-chrome span:nth-child(3){background:#22c55e}.carousel-mock-url{margin-left:auto;font-size:0.62rem;font-weight:600;color:#6b7280}.carousel-mock-body{flex:1;display:flex;gap:0.65rem;padding:0.75rem}.carousel-mock-sidebar{display:flex;flex-direction:column;gap:0.35rem;width:2.5rem}.carousel-mock-sidebar span{height:2rem;border-radius:3px;background:#fff;border:1px solid #d1d5db}.carousel-mock-sidebar span.active{border-color:var(--primary);box-shadow:0 0 0 1px rgba(229,57,53,0.25)}.carousel-mock-canvas{flex:1;position:relative;background:#fff;border:1px solid #e5e7eb;border-radius:6px;padding:0.75rem}.carousel-mock-line{height:5px;border-radius:3px;background:#e5e7eb;margin-bottom:0.45rem}.carousel-mock-line.short{width:65%}.carousel-mock-highlight{position:absolute;left:0.75rem;right:2.5rem;top:2.1rem;height:0.85rem;border-radius:2px;background:rgba(250,204,21,0.45)}.carousel-mock-sign{position:absolute;right:0.85rem;bottom:0.65rem;font-size:0.72rem;font-weight:700;font-style:italic;color:var(--primary)}.carousel-mock-merge,.carousel-mock-split,.carousel-mock-compress{display:flex;align-items:center;justify-content:center;gap:1rem;padding:1.25rem}.carousel-mock-stack{display:flex;flex-direction:column;gap:0.25rem}.carousel-mock-file{display:block;width:2.5rem;height:3rem;background:#fff;border:1px solid #d1d5db;border-radius:3px;box-shadow:0 2px 4px rgba(17,24,39,0.06)}.carousel-mock-file:nth-child(2){margin-left:0.35rem}.carousel-mock-file:nth-child(3){margin-left:0.7rem}.carousel-mock-result{display:flex;flex-direction:column;align-items:center;gap:0.35rem}.carousel-mock-badge{font-size:0.62rem;font-weight:700;color:var(--secondary);background:#fff;border:1px solid #e5e7eb;border-radius:999px;padding:0.15rem 0.5rem}.carousel-mock-page{width:3.75rem;height:4.75rem;background:#fff;border:2px solid var(--primary);border-radius:4px;display:flex;align-items:flex-end;justify-content:center;padding-bottom:0.35rem;box-shadow:0 4px 12px rgba(229,57,53,0.12)}.carousel-mock-page.small{width:3rem;height:3.75rem;border-color:#9ca3af;box-shadow:0 2px 8px rgba(17,24,39,0.08)}.carousel-mock-page.split::after{content:"";position:absolute;top:12%;bottom:12%;left:50%;width:2px;background:var(--primary)}.carousel-mock-page.split{position:relative}.carousel-tag{font-size:0.55rem;font-weight:800;color:var(--primary);text-transform:uppercase;letter-spacing:0.03em}.carousel-mock-arrow{color:var(--primary);font-size:1.5rem;font-weight:700}.carousel-mock-parts{display:flex;gap:0.35rem}.carousel-mock-parts span{width:1.65rem;height:2.25rem;background:#fff;border:1px solid var(--primary);border-radius:3px;box-shadow:0 2px 6px rgba(229,57,53,0.1)}.carousel-mock-size{display:flex;flex-direction:column;align-items:center;gap:0.4rem}.carousel-mock-kb{font-size:0.68rem;font-weight:700;color:var(--secondary)}.carousel-mock-size.small .carousel-mock-kb{color:#059669}.carousel-panel h3{margin:0 0 0.4rem;font-size:1.1rem;color:var(--secondary)}.carousel-panel p{margin:0;font-size:0.9rem;color:var(--muted);line-height:1.55}.home-carousel-dots{display:flex;justify-content:center;gap:0.5rem;margin-top:1.25rem}.home-carousel-dot{width:0.55rem;height:0.55rem;padding:0;border:none;border-radius:999px;background:#d1d5db;cursor:pointer;transition:width 0.2s ease,background 0.2s ease}.home-carousel-dot:hover{background:#9ca3af}.home-carousel-dot.is-active{width:1.5rem;background:var(--primary)}.home-seo-prose{background:var(--bg);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.seo-prose-panel{max-width:48rem;margin:0 auto;text-align:left}.seo-prose-panel h2{font-size:1.5rem;color:var(--secondary);margin:0 0 1.25rem;text-align:left}.seo-prose-panel h3{font-size:1.15rem;color:var(--secondary);margin:1.75rem 0 0.65rem}.seo-prose-panel p{margin:0 0 1rem;color:var(--text);line-height:1.75;font-size:0.95rem}.home-faq{margin-top:0;padding-top:3rem;padding-bottom:1rem}.home-blog{border-top:1px solid var(--border)}.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.blog-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);transition:transform 0.2s ease,box-shadow 0.2s ease,border-color 0.2s ease}.blog-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(229,57,53,0.35)}.blog-card a{display:block;padding:1.35rem 1.25rem;color:inherit;text-decoration:none}.blog-card a:hover{text-decoration:none}.blog-card h3{margin:0 0 0.5rem;font-size:1rem;color:var(--secondary);line-height:1.4}.blog-card p{margin:0 0 0.75rem;font-size:0.85rem;color:var(--muted);line-height:1.5}.blog-card-link{font-size:0.82rem;font-weight:700;color:var(--primary)}.home-blog-more{text-align:center;margin:1.75rem 0 0}.home-blog-more a{font-weight:700}.home-cta-wrap{padding-bottom:5rem}.home-social-section{padding:2.5rem 0;background:var(--secondary);color:#fff}.home-social-links{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;justify-content:center;gap:0.75rem 1.5rem}.home-social-links a{color:#fff;font-weight:600;font-size:0.95rem;text-decoration:none;opacity:0.9}.home-social-links a:hover{opacity:1;text-decoration:underline}.platform-promo-premium{position:relative;overflow:hidden;margin:2.5rem auto;padding:2.5rem 2rem 2rem;background:linear-gradient(160deg,var(--surface) 0%,#fef2f2 50%,var(--bg) 100%);border:1px solid var(--border);border-radius:20px;box-shadow:0 16px 48px rgba(17,24,39,0.08)}.platform-promo-glow{position:absolute;top:-40%;right:-10%;width:50%;height:80%;background:radial-gradient(ellipse,rgba(229,57,53,0.08) 0%,transparent 70%);pointer-events:none}.platform-promo-premium .platform-promo-badge{background:var(--secondary);color:#fff}.platform-promo-premium .platform-card{border-radius:16px;box-shadow:0 4px 20px rgba(0,0,0,0.04)}.platform-promo-premium .platform-card-featured{border-color:var(--primary);box-shadow:0 12px 36px rgba(229,57,53,0.12)}.platform-card-tag-live{background:#ecfdf5;color:#065f46;border-color:#a7f3d0}.platform-promo-premium .platform-card-icon{background:linear-gradient(145deg,rgba(229,57,53,0.14),rgba(229,57,53,0.06))}@media (max-width:960px){.home-hero-inner,.home-editor-inner{grid-template-columns:1fr}.home-hero-visual{order:-1;margin-bottom:1rem}.home-hero-stats{grid-template-columns:repeat(2,1fr)}.home-carousel-wrap{gap:0.5rem}.home-carousel-btn{width:38px;height:38px;font-size:1.35rem}.home-sticky-nav a:not(.btn){display:none}.tools-grid-popular,.why-grid,.blog-grid{grid-template-columns:repeat(2,1fr)}.home-steps{grid-template-columns:repeat(2,1fr)}.platform-promo-grid{grid-template-columns:1fr;max-width:28rem;margin:0 auto}}@media (max-width:768px){.home-tools-grid,.tools-grid-popular,.tools-grid{grid-template-columns:repeat(2,1fr);gap:0.85rem}.tool-card{padding:1.25rem 0.75rem 1.1rem}.tool-card 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.subtitle{margin:0;font-size:1.05rem;line-height:1.65}.tool-hero-card,.merge-hero-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:0;background:var(--surface);border:1px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:0 8px 32px rgba(17,24,39,0.08);margin-bottom:3rem}.tool-hero-visual,.merge-hero-visual{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;padding:clamp(1.5rem,4vw,2.5rem);background:linear-gradient(145deg,#eff6ff 0%,#f0f9ff 42%,#fff5f5 100%);border-right:1px solid var(--border)}.tool-visual-mock,.merge-visual-mock{display:flex;align-items:center;justify-content:center;gap:clamp(0.75rem,2vw,1.25rem);width:100%;max-width:20rem}.tool-visual-stack,.merge-visual-stack{display:flex;flex-direction:column;gap:0.3rem}.tool-visual-file,.merge-visual-file{display:flex;align-items:flex-end;justify-content:center;width:3.25rem;height:4rem;background:#fff;border:1px solid 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0.45rem}.tool-visual-label,.merge-visual-label{font-size:0.72rem;font-weight:600;color:var(--muted);background:#fff;border:1px solid var(--border);border-radius:999px;padding:0.15rem 0.55rem}.tool-visual-progress,.merge-visual-progress{width:100%;max-width:16rem;text-align:center}.tool-visual-progress-bar,.merge-visual-progress-bar{height:6px;background:rgba(255,255,255,0.85);border:1px solid rgba(229,57,53,0.15);border-radius:999px;overflow:hidden;margin-bottom:0.45rem}.tool-visual-progress-bar span,.merge-visual-progress-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--primary) 0%,#ff6b6b 100%);border-radius:999px}.tool-visual-progress,.merge-visual-progress p{margin:0;font-size:0.78rem;font-weight:600;color:var(--muted)}.tool-hero-panel,.merge-hero-panel{padding:clamp(1.25rem,3vw,2rem)}.tool-panel-title,.merge-panel-title{margin:0 0 0.35rem;font-size:1.2rem;color:var(--secondary)}.tool-panel-lead,.merge-panel-lead{margin:0 0 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0.5rem;font-size:clamp(1.35rem,2.8vw,1.75rem);color:var(--secondary)}.tool-section-lead,.merge-section-lead{margin:0;color:var(--muted);font-size:1rem;line-height:1.6}.tool-steps,.merge-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;position:relative}.tool-steps::before,.merge-steps::before{content:"";position:absolute;top:2.6rem;left:calc(16.66% + 1rem);right:calc(16.66% + 1rem);height:0;border-top:2px dashed rgba(229,57,53,0.35);pointer-events:none;z-index:0}.tool-step,.merge-step{position:relative;z-index:1;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.5rem 1.25rem;text-align:center;box-shadow:0 2px 10px rgba(17,24,39,0.04);transition:border-color 0.2s ease,box-shadow 0.2s ease}.tool-step:hover,.merge-step:hover{border-color:rgba(229,57,53,0.3);box-shadow:0 8px 24px 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p{margin:0;font-size:0.84rem;color:var(--muted);line-height:1.55}.tool-cta-bar,.merge-cta-bar{margin-top:2.5rem;margin-bottom:2.5rem;padding:1.75rem 1.5rem;background:linear-gradient(135deg,#fff5f5 0%,#ffffff 50%,#eff6ff 100%);border:1px solid rgba(229,57,53,0.15);border-radius:16px;box-shadow:0 4px 20px rgba(229,57,53,0.06)}.tool-cta-inner,.merge-cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:1rem 1.25rem}.tool-cta-or,.merge-cta-or{font-size:0.85rem;font-weight:700;color:var(--muted);letter-spacing:0.08em}.tool-cta-primary,.merge-cta-primary,.tool-cta-desktop,.merge-cta-desktop{min-width:11rem}.btn-lg{padding:0.85rem 1.5rem;font-size:1rem}.tool-landing .tool-bottom-content,.merge-landing .tool-bottom-content{margin-top:1rem;padding-top:2rem;border-top:1px solid var(--border)}.tool-landing .tool-bottom-content .seo-content,.merge-landing .tool-bottom-content .seo-content{margin-top:2rem}.tool-landing .tool-bottom-content .faq-section,.merge-landing .tool-bottom-content .faq-section{margin-top:2.5rem;padding:2.5rem 1rem;background:#f3f4f6;border-radius:12px}.tool-landing .tool-bottom-content .faq-list,.merge-landing .tool-bottom-content .faq-list{max-width:44rem;margin:0 auto}.tool-landing .tool-bottom-content .platform-promo-premium,.merge-landing .tool-bottom-content .platform-promo-premium{margin:2.5rem 0 0;width:100%;max-width:100%}.tool-landing .tool-bottom-content .platform-promo-grid,.merge-landing .tool-bottom-content .platform-promo-grid{grid-template-columns:repeat(3,1fr);gap:1.25rem}.tool-landing .tool-bottom-content .platform-card-featured,.merge-landing .tool-bottom-content .platform-card-featured{border:2px solid var(--primary);box-shadow:0 12px 36px 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rgba(34,197,94,0.2)}.tool-visual-size{font-size:0.55rem;font-weight:700;color:var(--muted)}.tool-visual-size-sm{color:#16a34a}.tool-visual-rotate{display:flex;align-items:center;gap:0.75rem}.tool-visual-page-tilt{transform:rotate(-90deg);width:3.5rem;height:4.5rem}.tool-visual-pages-row{display:flex;gap:0.35rem;align-items:flex-end}.tool-visual-thumb{display:flex;align-items:flex-end;justify-content:center;width:2.2rem;height:2.9rem;background:#fff;border:1px solid #d1d5db;border-radius:3px;padding-bottom:0.25rem;box-shadow:0 2px 6px rgba(17,24,39,0.06)}.tool-visual-thumb-removed{opacity:0.35;border-style:dashed;border-color:var(--primary)}.tool-visual-thumb-selected{border-color:var(--primary);box-shadow:0 0 0 2px rgba(229,57,53,0.15)}.tool-visual-thumb-drag{transform:translateY(-6px);border-color:var(--primary)}.tool-visual-x{font-size:0.7rem;color:var(--primary);font-weight:700}.tool-visual-num{font-size:0.55rem;font-weight:700;color:var(--primary)}.tool-visual-page-wm{position:relative;width:4.5rem;height:5.5rem;overflow:hidden}.tool-visual-wm{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:0.45rem;font-weight:800;color:rgba(229,57,53,0.35);transform:rotate(-35deg);letter-spacing:0.05em}.tool-visual-page-hf{position:relative;width:4.5rem;height:5.5rem;display:flex;flex-direction:column;justify-content:space-between;padding:0.35rem 0.25rem}.tool-visual-hf-header,.tool-visual-hf-footer{font-size:0.42rem;font-weight:600;color:var(--muted);text-align:center}.tool-visual-hf-body{flex:1;margin:0.2rem 0;background:linear-gradient(180deg,transparent,rgba(17,24,39,0.04));border-radius:2px}.tool-visual-meta-card{background:#fff;border:1px solid var(--border);border-radius:8px;padding:0.65rem 0.75rem;font-size:0.62rem;line-height:1.5;color:var(--muted);max-width:11rem}.tool-visual-meta-card p{margin:0 0 0.2rem}.tool-visual-lock-wrap{position:relative;display:flex;align-items:center;justify-content:center}.tool-visual-lock,.tool-visual-unlock{position:absolute;font-size:1.5rem;bottom:-0.25rem;right:-0.5rem}.tool-visual-sign{display:flex;align-items:flex-end;gap:0.5rem}.tool-visual-sig{font-family:cursive;font-size:1.1rem;color:#1e3a8a;transform:rotate(-8deg)}.tool-visual-images{display:flex;flex-direction:column;gap:0.25rem}.tool-visual-img{display:flex;align-items:center;justify-content:center;width:2.75rem;height:2rem;background:#fff;border:1px solid #93c5fd;border-radius:3px;font-size:0.5rem;font-weight:700;color:#2563eb}.tool-visual-form{display:flex;flex-direction:column;gap:0.35rem;background:#fff;border:1px solid var(--border);border-radius:6px;padding:0.6rem;width:9rem}.tool-visual-form-line{height:0.35rem;background:var(--border);border-radius:2px;width:60%}.tool-visual-form-field{font-size:0.55rem;color:var(--muted)}.tool-visual-compare{display:flex;align-items:center;gap:0.5rem}.tool-visual-page-half{width:3.25rem;height:4.25rem}.tool-visual-vs{font-size:0.65rem;font-weight:800;color:var(--muted)}.tool-visual-text{display:flex;flex-direction:column;gap:0.3rem;width:4rem}.tool-visual-text-lines{display:block;height:0.3rem;background:#d1d5db;border-radius:2px}.tool-visual-text-lines.short{width:70%}.tool-visual-editor{display:flex;gap:0.35rem;width:100%;max-width:14rem}.tool-visual-editor-sidebar{width:1.5rem;height:5rem;background:#fff;border:1px solid var(--border);border-radius:4px}.tool-visual-editor-canvas{flex:1;height:5rem;background:#fff;border:1px solid var(--border);border-radius:4px;position:relative}.tool-visual-highlight{position:absolute;left:15%;top:35%;width:50%;height:0.45rem;background:rgba(250,204,21,0.55);border-radius:2px}.tool-landing .compare-zones{margin-top:0.5rem}.tool-landing .editor-drop.tool-drop-zone{margin-top:0}@media (max-width:900px){.tool-hero-card,.merge-hero-card{grid-template-columns:1fr}.tool-hero-visual,.merge-hero-visual{border-right:none;border-bottom:1px solid var(--border);padding:1.75rem 1.25rem}.tool-benefits-grid,.merge-benefits-grid{grid-template-columns:repeat(2,1fr)}.tool-steps::before,.merge-steps::before{display:none}.tool-steps,.merge-steps{grid-template-columns:1fr;max-width:22rem;margin:0 auto}}@media (max-width:520px){.tool-benefits-grid,.merge-benefits-grid{grid-template-columns:1fr}.tool-cta-inner,.merge-cta-inner{flex-direction:column}.tool-cta-primary,.merge-cta-primary,.tool-cta-desktop,.merge-cta-desktop{width:100%}.tool-landing-intro,.merge-landing-intro{text-align:left}.tool-section-header,.merge-section-header{text-align:left}}.cookie-toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#4caf50;color:#fff;padding:12px 24px;border-radius:6px;z-index:10001;box-shadow:0 4px 12px rgba(0,0,0,0.3);transition:opacity 0.3s ease}.cookie-toast-hide{opacity:0}