:root{--bg:#f7f8fa;--surface:#fff;--ink:#16243a;--muted:#657187;--line:#e4e9f0;--brand:#245ae6;--brand-soft:#edf2ff;--radius:16px;--shadow:0 8px 30px #16243a06;--font:Arial, "PingFang SC", "Microsoft YaHei", sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);font-family:var(--font);margin:0;font-size:15px;line-height:1.65}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,a:focus-visible,input:focus-visible,select:focus-visible{outline-offset:4px}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}.button{border:0;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-weight:600;display:inline-flex}.button--primary{background:var(--brand);color:#fff}.button--primary:hover{background:#1747c5}.button--secondary{background:var(--surface);color:var(--ink);border:1px solid var(--line)}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.badge{letter-spacing:.04em;color:var(--muted);background:#edf0f5;border-radius:6px;align-items:center;padding:3px 8px;font-size:11px;font-weight:700;display:inline-flex}.badge--green{color:#15804e;background:#e7f6ee}.badge--red{color:#c74d43;background:#fff0ee}.badge--blue{color:#3473d6;background:#eaf1ff}.badge--purple{color:#8852cb;background:#f0eaff}.page-heading h1{letter-spacing:-1px;margin:10px 0 16px;font-size:40px;line-height:1.25}.page-heading>p:last-child{color:var(--muted);max-width:650px}.eyebrow{text-transform:uppercase;letter-spacing:.15em;color:var(--brand);font-size:12px;font-weight:700}.field{flex-direction:column;gap:6px;font-size:13px;font-weight:600;display:flex}.field input,.field select{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:8px;min-width:0;padding:10px 12px}.field small{color:var(--muted);font-weight:400}.notice{background:var(--brand-soft);color:#31539a;border-radius:10px;padding:13px 16px;font-size:13px}.notice--error{color:#a12f2f;background:#fff0ee}.empty-state{text-align:center;color:var(--muted);padding:36px}.empty-state h3{color:var(--ink)}
.shell{width:min(1160px,100% - 64px);margin:0 auto}.site-header{border-bottom:1px solid var(--line);background:#fff}.header-inner{justify-content:space-between;align-items:center;gap:30px;height:86px;display:flex}.logo{letter-spacing:-1px;align-items:center;gap:10px;font-size:24px;font-weight:800;line-height:1.15;display:flex}.logo-mark{color:#fff;background:linear-gradient(145deg,#4c89ff 0%,#245ae6 55%,#123ca3 100%);border-radius:12px;place-items:center;width:39px;height:39px;display:grid}.logo-mark svg{width:27px;height:27px;display:block}.logo-note{letter-spacing:2px;color:var(--muted);margin-top:5px;font-size:9px;font-weight:500;display:block}.header-inner .primary-navigation{color:#4c5870;align-items:center;gap:30px;font-size:13px;display:flex}:where(.header-inner .primary-navigation) a{align-items:center;gap:4px;display:flex}.header-inner .primary-navigation a:hover,.text-link{color:var(--brand)}.header-note{color:var(--muted);align-items:center;gap:7px;font-size:11px;display:flex}.header-note i{background:#1eac77;border-radius:100%;width:6px;height:6px}.hero{grid-template-columns:1.1fr 1fr;align-items:center;gap:30px;padding-top:68px;padding-bottom:65px;display:grid}.hero .badge{letter-spacing:1px;gap:6px;padding:5px 10px;font-size:11px}.hero h1{letter-spacing:-2px;margin:18px 0;font-size:48px;font-weight:750;line-height:1.38}:where(.hero h1) span{color:var(--brand)}.hero-copy>p{color:var(--muted);font-size:15px;line-height:1.9}.hero-actions{align-items:center;gap:25px;margin-top:28px;display:flex}.text-link{font-size:13px;font-weight:600}.hero-visual{place-items:center;min-width:0;display:grid}.hero-artwork{border-radius:24px;width:100%;height:auto;display:block}.tool-artwork{color:#25865a;flex:none;width:68px;height:68px;display:inline-flex;position:relative}.tool-artwork>img{object-fit:contain;width:100%;height:100%;display:block}.tool-artwork--pdf{color:#c55f53}.tool-artwork--image{color:#9165c3}.tool-artwork--word{color:#4c78cc}.tool-operation{border:1px solid var(--line);background:#fff;border-radius:8px;place-items:center;width:25px;height:25px;display:grid;position:absolute;bottom:0;right:0;box-shadow:0 2px 5px #233d7908}.tool-artwork--large{width:88px;height:88px}.tool-heading{align-items:center;gap:20px;display:flex}.tool-heading .page-heading{min-width:0}.directory{padding-top:20px;padding-bottom:48px}.section-title{justify-content:space-between;align-items:center;gap:24px;display:flex}.section-title .eyebrow{letter-spacing:1.5px;color:#8290a6;margin:0;font-size:9px}.section-title h2{letter-spacing:-.7px;margin:5px 0;font-size:25px}.search-box{border:1px solid var(--line);color:#8c97a8;background:#fff;border-radius:10px;align-items:center;gap:10px;width:310px;padding:10px 14px;display:flex}.search-box input{border:0;outline:0;width:100%;min-width:0;font-size:12px}.directory-filter{border:0;border-bottom:1px solid var(--line);gap:10px;min-width:0;margin:24px 0;padding-bottom:15px;display:flex}.directory-filter button{color:var(--muted);white-space:nowrap;background:0 0;border:0;border-radius:8px;padding:9px 15px;font-size:12px}.directory-filter button.active{color:var(--brand);background:#e8efff;font-weight:700}.directory-filter span{opacity:.7;margin-left:5px;font-size:10px}.tools-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:17px;display:grid}.tool-card{height:100%;padding:22px 22px 17px;transition:border-color .2s,transform .2s}.is-planned .tool-card{background:#fcfcfd}.tool-link:hover .tool-card{border-color:#b1c4f6;transform:translateY(-3px)}.card-top{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.card-arrow{color:#aab5c5}.tool-card h3{margin:0 0 7px;font-size:15px;font-weight:650}.tool-card p{color:var(--muted);min-height:38px;margin:0;font-size:11px;line-height:1.8}.site-footer{border-top:1px solid var(--line);justify-content:space-between;gap:30px;padding-top:28px;padding-bottom:35px;display:flex}.footer-brand{font-size:15px;font-weight:700}.site-footer p{color:var(--muted);margin:4px 0;font-size:11px}.footer-links{color:var(--muted);align-items:center;gap:25px;font-size:11px;display:flex}.language-switcher{white-space:nowrap;align-items:center;gap:8px;font-size:12px;display:flex}.language-switcher span{color:var(--brand);font-weight:700}.language-switcher a{color:var(--muted)}@media (max-width:650px){.header-inner{gap:10px}.header-inner>.primary-navigation{display:none}.language-switcher{font-size:11px}.hero h1{letter-spacing:-1px}}
.content-page{min-height:65vh;padding-top:50px;padding-bottom:70px}.content-page .page-heading{margin-bottom:35px}.detail-page{padding-top:25px;padding-bottom:65px}.breadcrumbs{color:var(--muted);gap:9px;margin-bottom:30px;font-size:11px;display:flex}.detail-grid{grid-template-columns:minmax(0,1fr) 300px;gap:24px;margin-top:30px;display:grid}.workspace-card,.info-card{padding:25px}.info-card h2{margin-top:18px;font-size:17px}.info-card p{color:var(--muted);font-size:12px}.info-card a{color:var(--brand);font-size:12px}.dropzone{width:100%;color:var(--ink);background:#f8faff;border:1.5px dashed #bed0ef;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:13px;padding:40px 15px;display:flex}.dropzone>span:not(.button):not(.upload-icon),.dropzone small{color:var(--muted);font-size:11px}.upload-icon{width:58px;height:58px;color:var(--brand);background:#e8efff;border-radius:15px;place-items:center;display:grid}.file-list{margin:20px 0;padding:0;list-style:none}.file-list li{border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:10px 0;font-size:12px;display:flex}:where(.file-list li)>span{overflow-wrap:anywhere;flex:1}.file-list small{color:var(--muted);font-size:10px;display:block}.file-list .button{padding:7px}.processor-options{border:0;flex-wrap:wrap;gap:15px;margin:25px 0;padding:0;display:flex}.processor-options:has(legend:only-child){display:none}.processor-options legend{margin-bottom:12px;font-size:13px;font-weight:700}.processor-options .field{flex:1;min-width:130px}.process-actions{gap:12px;margin:20px 0;display:flex}.downloads{border-top:1px solid var(--line);margin-top:24px;padding-top:20px}.downloads h3{margin:16px 0 12px;font-size:17px}.downloads p{color:var(--muted);font-size:11px}.explanation{max-width:800px;margin-top:42px}.explanation h2,.related>h2{margin-top:36px;font-size:22px}.steps{gap:24px;padding:0;list-style:none;display:flex}.steps li{flex:1}.steps span{color:#9db5ee;font-size:22px;font-weight:700}.steps p{color:var(--muted);font-size:13px}.faq-list details{border-bottom:1px solid var(--line);padding:16px 0}.faq-list summary{cursor:pointer;font-size:14px}.faq-list p{color:var(--muted);font-size:13px}.related{margin-top:35px}.related .tools-grid{grid-template-columns:repeat(3,1fr)}.article-page{max-width:820px;min-height:65vh;padding-top:50px;padding-bottom:70px}.article-meta{color:var(--muted);font-size:12px}.article-body{color:#43526a;margin:32px 0;font-size:15px;line-height:2}.article-body h2{color:var(--ink);font-size:20px}.article-body p{white-space:pre-wrap;margin:22px 0}.guide-grid{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}.guide-card{padding:28px}.guide-card h2{font-size:20px}.guide-card p{color:var(--muted);font-size:13px}.skip-link{background:var(--brand);color:#fff;z-index:20;padding:10px;position:absolute;top:-100px}.skip-link:focus{top:0}.spin{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:900px){.shell{width:calc(100% - 40px)}.header-inner .primary-navigation{gap:15px}.header-note{display:none}.hero h1{font-size:37px}.tools-grid{grid-template-columns:repeat(3,1fr)}.detail-grid{grid-template-columns:minmax(0,1fr) 240px}}@media (max-width:650px){.shell{width:calc(100% - 32px)}.header-inner{height:72px}.header-inner .primary-navigation{gap:14px;font-size:11px}.header-inner .primary-navigation a:nth-child(2),.header-inner .primary-navigation a:nth-child(3){display:none}.logo{font-size:22px}.hero{padding-top:40px;padding-bottom:35px;display:block}.hero h1{font-size:38px}.hero-visual{max-width:400px;margin:26px auto 0}.tool-heading{align-items:flex-start;gap:12px}.tool-heading h1{overflow-wrap:anywhere}.tool-artwork--large{width:64px;height:64px}.section-title{display:block}.search-box{width:100%;margin-top:20px}.section-title h2{font-size:23px}.directory-filter{border:0;gap:4px;min-width:0;overflow:auto}.directory-filter button{padding:8px 10px}.tools-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.tool-card{padding:17px 14px}.tool-card h3{font-size:14px}.tool-card p{min-height:60px}.site-footer{display:block}.footer-links{flex-wrap:wrap;gap:18px;margin-top:22px}.page-heading h1{font-size:30px}.detail-grid{grid-template-columns:minmax(0,1fr)}.workspace-card{padding:16px}.steps{flex-direction:column;gap:8px}.steps li{align-items:center;gap:15px;display:flex}.related .tools-grid,.guide-grid{grid-template-columns:1fr}.dropzone{padding:30px 10px}.dropzone strong{font-size:13px}.download-link small{display:none}.breadcrumbs{flex-wrap:wrap;font-size:10px}.content-page{padding-top:35px}}.example-action{flex-wrap:wrap;align-items:center;gap:15px;margin-top:15px;display:flex}.example-action small{color:var(--muted);font-size:11px}.preview-panel{border-top:1px solid var(--line);min-width:0;margin-top:24px;padding-top:18px}.preview-panel h3{flex-wrap:wrap;align-items:center;gap:12px;font-size:15px;display:flex}.preview-panel h3 small{overflow-wrap:anywhere;color:var(--muted);font-size:11px;font-weight:400}.preview-caption{color:var(--muted);font-size:11px}.preview-images{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:16px;display:grid}.preview-images:empty{display:none}.preview-images figure{border:1px solid var(--line);background:#fff;border-radius:10px;min-width:0;margin:0;padding:8px}.preview-images img{object-fit:contain;background:repeating-conic-gradient(#f0f2f6 0% 25%,#fff 0% 50%) 50%/14px 14px;width:100%;height:160px;display:block}.preview-images figcaption{color:var(--muted);overflow-wrap:anywhere;margin-top:6px;font-size:10px}.table-scroll{border:1px solid var(--line);border-radius:8px;max-width:100%;max-height:300px;overflow:auto}.table-scroll table{border-collapse:collapse;text-align:left;min-width:100%;font-size:11px}.table-scroll th,.table-scroll td{border:1px solid var(--line);overflow-wrap:anywhere;white-space:pre-wrap;min-width:70px;max-width:220px;padding:8px 10px}.table-scroll th{background:var(--brand-soft)}.download-row{border:1px solid var(--line);background:#fff;border-radius:10px;justify-content:space-between;align-items:center;gap:16px;margin-top:9px;padding:12px 14px;display:flex}.download-row--all{background:var(--brand-soft);border-color:#b8c9f4}.download-file{gap:2px;min-width:0;display:grid}.download-file strong{overflow-wrap:anywhere;font-size:13px;line-height:1.4}.downloads .download-file small{color:var(--muted);font-size:11px}.download-actions{flex-shrink:0;gap:8px;display:flex}.download-actions .button{white-space:nowrap;min-height:42px;padding:9px 14px;font-size:12px}.sr-only{clip-path:inset(50%);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (max-width:650px){.download-row{flex-direction:column;align-items:stretch;gap:10px}.download-actions .button{flex:1}.preview-images{grid-template-columns:1fr}.file-list li>svg{display:none}.file-list li{gap:6px}.file-list .button{padding:6px}.file-list li>span{font-size:11px}}
.crop-editor,.image-resize-preview{border:1px solid var(--line);background:#fff;border-radius:14px;min-width:0;margin-top:24px;padding:18px}.crop-editor__heading,.crop-editor__footer{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.crop-editor__heading h3{margin:0 0 4px;font-size:16px}.crop-editor__heading p,.crop-editor__heading span,.crop-editor__hint,.image-resize-preview p,.image-resize-preview small{color:var(--muted);margin:0;font-size:12px;line-height:1.6}.crop-editor__toolbar{border:0;flex-wrap:wrap;gap:7px;min-width:0;margin:17px 0 12px;padding:0;display:flex}.crop-editor__ratio{border:1px solid var(--line);color:var(--ink);cursor:pointer;background:#fff;border-radius:7px;padding:7px 11px;font-size:12px}.crop-editor__ratio[aria-pressed=true]{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);font-weight:700}.crop-editor__ratio:disabled{opacity:.5;cursor:not-allowed}.crop-editor__surface,.image-resize-preview__image{background:repeating-conic-gradient(#e9edf4 0% 25%,#fff 0% 50%) 50%/20px 20px;border-radius:10px;justify-content:center;align-items:center;min-height:220px;padding:12px;display:flex;overflow:hidden}.crop-stage{touch-action:none;-webkit-user-select:none;user-select:none;cursor:crosshair;max-width:100%;line-height:0;display:inline-block;position:relative;overflow:hidden}.crop-stage img{width:100%;height:auto;display:block}.image-resize-preview__image img{object-fit:contain;width:auto;max-width:100%;height:auto;max-height:250px;display:block}.processor-options .field input[type=checkbox]{width:18px;height:18px;accent-color:var(--brand);padding:0}.crop-selection{z-index:1;cursor:move;touch-action:none;background-color:#ffffff14;background-image:linear-gradient(90deg,#0000 33.2%,#ffffffa6 33.3% 33.5%,#0000 33.6% 66.5%,#ffffffa6 66.6% 66.8%,#0000 66.9%),linear-gradient(#0000 33.2%,#ffffffa6 33.3% 33.5%,#0000 33.6% 66.5%,#ffffffa6 66.6% 66.8%,#0000 66.9%);border:2px solid #fff;border-radius:0;padding:0;position:absolute;box-shadow:0 0 0 9999px #0f172a8f,inset 0 0 0 1px #0f172a80}.crop-stage--draw .crop-selection{pointer-events:none}.crop-selection:focus-visible,.crop-editor__ratio:focus-visible{outline:3px solid var(--brand);outline-offset:3px}.crop-handle{background:var(--brand);border:2px solid #fff;border-radius:3px;width:18px;height:18px;position:absolute;box-shadow:0 1px 5px #0f172a73}.crop-handle--nw{cursor:nwse-resize;top:-9px;left:-9px}.crop-handle--ne{cursor:nesw-resize;top:-9px;right:-9px}.crop-handle--sw{cursor:nesw-resize;bottom:-9px;left:-9px}.crop-handle--se{cursor:nwse-resize;bottom:-9px;right:-9px}.crop-editor__footer{margin-top:13px}.crop-editor__footer strong{font-size:13px}.crop-editor__footer>div{flex-wrap:wrap;gap:8px;display:flex}.crop-editor__footer .button{padding:7px 10px;font-size:12px}.crop-editor__hint{margin-top:10px}.image-resize-preview{gap:9px;display:grid}.image-resize-preview__image{min-height:140px}