:root{--ink:#181b22;--muted:#707680;--green:#375bea;--mint:#f1f3f7;--line:#e5e7eb;--radius:10px;--font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Arial,"Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font:15px/1.65 var(--font);-webkit-font-smoothing:antialiased}a{color:var(--green);text-decoration:none}a:hover{color:#2342be;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}:focus-visible{outline:3px solid #a6b7ff;outline-offset:4px}[hidden]{display:none!important}.shell{width:min(1160px,calc(100% - 64px));margin-inline:auto}.site-header{border-bottom:1px solid var(--line);background:#fff}.header-inner{min-height:82px;display:flex;align-items:center;gap:64px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:26px;font-weight:750;letter-spacing:-1px;white-space:nowrap}.brand svg{color:var(--green)}.top-nav{display:flex;align-self:stretch;gap:32px}.top-nav a{display:flex;align-items:center;position:relative;color:var(--muted);font-weight:600}.top-nav .selected{color:var(--green)}.top-nav .selected:after{content:"";height:3px;background:var(--green);position:absolute;bottom:15px;left:0;right:0}.language-menu{margin-left:auto;position:relative;font-size:14px}.language-menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;padding:12px 0}.language-menu summary::-webkit-details-marker{display:none}.language-menu nav{position:absolute;right:0;top:100%;width:180px;padding:8px;background:#fff;box-shadow:0 10px 35px #18203d18;border:1px solid var(--line);border-radius:var(--radius);z-index:20}.language-menu nav a{display:block;padding:8px 12px;border-radius:6px}.language-menu nav a:hover,.language-menu [aria-current]{background:var(--mint)}.skip-link{position:absolute;top:-70px;left:20px;background:var(--green);color:#fff;padding:10px;z-index:100}.skip-link:focus{top:10px}.directory-intro{padding:62px 0 44px}.directory-intro h1{font-size:clamp(32px,4vw,52px);font-weight:750;line-height:1.15;letter-spacing:-1.8px;margin:0 0 20px}.directory-intro>p{font-size:19px;color:var(--muted);margin:0 0 30px}.search-field{display:flex;align-items:center;gap:16px;min-height:60px;border:1px solid #cdd1da;border-radius:8px;padding:0 20px}.search-field:focus-within{border-color:var(--green);box-shadow:0 0 0 3px var(--mint)}.search-field>i{font-size:19px}.search-field input{border:0;outline:none;width:100%;min-width:0;background:transparent;padding:16px 0;font-size:16px}.search-field kbd{background:#f7f8fa;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:0 8px;font:13px/24px var(--font)}.directory{display:grid;grid-template-columns:184px minmax(0,1fr);gap:30px;margin-bottom:70px}.category-rail{border-right:1px solid var(--line);padding-right:20px;display:flex;flex-direction:column;gap:6px;align-items:stretch}.category-rail button{border:0;background:transparent;color:var(--muted);text-align:left;padding:12px 10px;display:flex;align-items:center;gap:12px;border-radius:5px;font-size:14px;line-height:1.5}.category-rail i{width:20px;text-align:center;color:var(--green)}.category-rail button:hover{background:#f7f8fa}.category-rail [aria-pressed=true]{background:var(--mint);color:var(--green);font-weight:650;box-shadow:inset 3px 0 var(--green)}.directory-heading{margin:0 0 18px}.directory-heading h2{margin:0;font-size:27px;letter-spacing:-.6px;font-weight:700}.directory-heading span{color:var(--muted);font-size:13px}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 24px}.tool-entry{border-bottom:1px solid var(--line);position:relative;min-width:0}.tool-link{display:grid;grid-template-columns:40px minmax(0,1fr) 12px;gap:12px;padding:22px 0 35px;min-height:155px;color:var(--ink);height:100%}.tool-icon{background:var(--mint);color:var(--green);width:40px;height:44px;border-radius:9px;display:grid;place-items:center;font-size:19px}.tool-link h3{font-size:16px;font-weight:650;line-height:1.45;margin:6px 0 10px}.tool-link p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}.entry-arrow{color:var(--green);font-size:12px;margin-top:12px;transition:transform .15s}.tool-link:hover .entry-arrow{transform:translateX(4px)}.favorite-button{position:absolute;right:0;bottom:8px;border:0;background:none;color:#828894;padding:2px 5px;font-size:13px}.favorite-button[aria-pressed=true]{color:var(--green)}.empty-state{padding:60px 20px;color:var(--muted);text-align:center}.site-footer{border-top:1px solid var(--line);margin-top:48px}.footer-inner{min-height:100px;display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:13px}.footer-inner>div{display:flex;align-items:center;gap:24px}.footer-brand{font-size:20px}.footer-inner>a{color:var(--muted)}.footer-inner i{transform:rotate(45deg);margin-left:6px}.tool-heading{padding:36px 0 32px}.back-link{font-size:13px;color:var(--muted)}.back-link i{margin-right:8px}.tool-heading h1{font-size:36px;line-height:1.25;font-weight:700;letter-spacing:-1px;margin:20px 0 12px}.tool-heading p{font-size:16px;color:var(--muted);max-width:780px;margin:0}.workspace-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:36px}.workspace{border:1px solid var(--line);border-radius:12px;padding:26px;min-width:0}.local-note{display:flex;gap:10px;align-items:flex-start;background:var(--mint);color:var(--green);font-size:13px;padding:13px 16px;border-radius:8px;margin:0 0 24px}.local-note i{margin-top:4px}.field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px;font-weight:500;font-size:14px}.field input:not([type=checkbox]):not([type=range]):not([type=color]),.field select,.field textarea,.form-control{width:100%;min-width:0;border:1px solid #cdd1da;background:#fff;border-radius:7px;padding:10px 12px;color:var(--ink);box-shadow:none;height:auto}.field textarea,textarea.form-control{min-height:190px;resize:vertical;font:14px/1.7 Consolas,"SFMono-Regular",monospace;tab-size:2}.field textarea[readonly]{background:#f8f9fb}.field input[type=color]{width:100%;height:44px;padding:3px;border:1px solid var(--line);border-radius:6px;background:#fff}.field input[type=range]{width:100%;accent-color:var(--green)}.settings-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 16px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.button,.btn{border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);padding:10px 17px;line-height:1.5;font-size:14px;font-weight:600;box-shadow:none}.button:hover,.btn:hover{background:var(--mint);color:var(--green);border-color:#bec8ed}.button.primary,.btn-primary,.btn-success{background:var(--green);color:white;border-color:var(--green)}.status{min-height:26px;color:var(--muted);font-size:13px;margin:10px 0;overflow-wrap:anywhere}.status.error{color:#b43434}.drop-zone{display:block;border:1px dashed #b4bfda;background:#fafbfe;padding:32px 18px;border-radius:10px;text-align:center;cursor:pointer;margin-bottom:24px}.drop-zone>i{display:block;color:var(--green);font-size:28px;margin-bottom:10px}.drop-zone strong{display:block;font-size:17px}.drop-zone span{display:block;font-size:13px;color:var(--muted);margin:5px 0 14px}.drop-zone input{max-width:100%;font-size:13px}.drop-zone.dragging{background:var(--mint);outline:2px solid var(--green)}.image-queue{display:flex;flex-direction:column;gap:8px;margin:16px 0}.queue-row{display:flex;gap:10px;align-items:center;padding:8px;background:#f7f8fa;border-radius:6px;font-size:12px}.queue-row img{width:44px;height:44px;object-fit:cover;border-radius:4px}.queue-row span{flex:1;overflow-wrap:anywhere;min-width:0}.queue-row button{border:0;background:transparent;padding:7px;color:var(--green)}.canvas-preview{padding:16px;background:repeating-conic-gradient(#f0f1f4 0% 25%,#fff 0% 50%) 50%/16px 16px;border:1px solid var(--line);border-radius:8px;text-align:center}.canvas-preview canvas{max-width:100%;height:auto;max-height:540px;object-fit:contain}.related-tools{margin-bottom:30px}.related-tools h2{font-size:16px;font-weight:650;margin:0 0 14px}.related-links{display:flex;flex-direction:column;gap:0}.related-links a{font-size:13px;color:var(--muted);padding:8px 0;border-bottom:1px solid #eef0f4;display:flex;gap:10px;align-items:center}.related-links a:hover{color:var(--green)}.related-links i{width:18px;color:var(--green)}.guide{border-top:1px solid var(--line);padding-top:24px;margin-top:30px;color:var(--muted);font-size:14px}.guide h2{color:var(--ink);font-size:19px}.guide ol{padding-left:22px}.color-preview{height:120px;border:1px solid var(--line);border-radius:8px;margin:14px 0}.tool-page main{min-height:60vh}
/* Compatibility surfaces: existing tool markup and behaviors retain their contracts. */
.legacy-page .container{width:100%;padding:0}.legacy-page #content>.row{margin:0 -15px}.legacy-page .nav-tabs{border-bottom:1px solid var(--line);margin-bottom:22px}.legacy-page .nav-tabs>li>a{font-size:14px;color:var(--muted);padding:12px 18px}.legacy-page .nav-tabs>li.active>a{color:var(--green);border-color:var(--line);border-bottom-color:white}.legacy-page #tab-content{padding:0 0 24px}.legacy-page .card{margin-top:24px;padding:20px 0;border-top:1px solid var(--line);background:none;box-shadow:none;clear:both}.legacy-page .card-header{font-size:17px;font-weight:650;margin-bottom:12px}.legacy-page .card-body{color:var(--muted);font-size:14px;overflow-wrap:anywhere}.legacy-page .form-group{margin-bottom:20px}.legacy-page label{font-weight:550;font-size:14px}.legacy-page .btn-group{display:flex;gap:8px;flex-wrap:wrap;float:none;margin:16px 0}.legacy-page .btn-group>.btn{border-radius:7px;float:none}.legacy-page .sm-right{margin:16px 0}.legacy-page img{max-width:100%;height:auto}.legacy-page .share-div{margin-bottom:24px}.legacy-page table{max-width:100%;font-size:13px}.legacy-page td,.legacy-page th{padding:10px;border-color:var(--line)}.legacy-page .input-group-addon{background:var(--mint);border-color:var(--line);font-size:13px}.legacy-page .tab-content{min-width:0}.legacy-page pre{white-space:pre-wrap;overflow-wrap:anywhere}.legacy-page .article .post{padding:20px 0}.legacy-page .article .loop-title{font-size:24px;line-height:1.45}.legacy-page .article p{font-size:16px}.legacy-page .article section{line-height:1.9}.legacy-page .article-thumb img{max-height:260px;object-fit:cover;border-radius:10px}.legacy-page .work-link .tab{display:flex;gap:15px;flex-wrap:wrap}.legacy-page .CodeMirror{border:1px solid var(--line);border-radius:8px}.legacy-page .compress-img-box:has(img[src=""]){display:none}.legacy-page .center,.text-center{text-align:center}.legacy-page .uploader{padding:24px;border:1px dashed #bbc3d5;border-radius:10px}.legacy-page .t-big-margin{margin:24px 0}.legacy-page .compress-info{margin:16px 0}.legacy-page .relate-tools{clear:both}.legacy-page .column{padding:0}.legacy-page input[type=checkbox],.legacy-page input[type=radio]{accent-color:var(--green)}
@media(min-width:992px){.legacy-page #content>.row>.col-md-8{padding-right:32px}.legacy-page #content>.row>.col-md-4{padding-left:28px;border-left:1px solid var(--line)}}
@media(max-width:1050px){.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.workspace-layout{grid-template-columns:minmax(0,1fr) 210px}.header-inner{gap:32px}.directory{grid-template-columns:170px minmax(0,1fr);gap:24px}}
@media(max-width:760px){.shell{width:calc(100% - 36px)}.header-inner{min-height:72px;gap:22px;flex-wrap:wrap}.brand{font-size:22px}.brand svg{width:25px;height:30px}.top-nav{gap:18px;font-size:13px;order:3;width:100%;height:38px}.top-nav .selected:after{bottom:0}.language-menu{font-size:12px}.directory-intro{padding:36px 0 28px}.directory-intro h1{letter-spacing:-1px}.directory-intro>p{font-size:16px}.search-field{min-height:54px;padding:0 14px}.search-field input{font-size:14px}.directory{display:block}.category-rail{flex-direction:row;flex-wrap:wrap;border:0;border-bottom:1px solid var(--line);padding:0 0 18px;margin-bottom:22px;gap:5px}.category-rail button{font-size:12px;padding:8px 10px;gap:6px}.category-rail [aria-pressed=true]{box-shadow:none}.category-rail i{width:14px}.directory-heading h2{font-size:23px}.tool-grid{gap:0 20px}.tool-link{grid-template-columns:34px minmax(0,1fr);gap:10px}.tool-icon{width:34px;height:38px;font-size:16px}.entry-arrow{display:none}.tool-link h3{font-size:15px}.tool-link p{font-size:12px}.workspace-layout{display:block}.workspace-layout>aside{margin-top:32px}.workspace{padding:18px}.tool-heading{padding:25px 0}.tool-heading h1{font-size:29px}.settings-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.related-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 15px}.footer-inner{min-height:90px}.footer-inner>div{gap:12px}.legacy-page .col-md-4{margin-top:32px}.legacy-page .table-responsive{overflow:auto}}
@media(max-width:460px){.tool-grid{grid-template-columns:1fr}.tool-link{min-height:116px;grid-template-columns:40px minmax(0,1fr) 14px;padding:18px 0 30px}.tool-icon{width:40px;height:42px}.tool-link p{font-size:13px}.entry-arrow{display:block}.tool-link h3{margin-top:4px;margin-bottom:7px}.settings-grid{gap:0 10px}.queue-row{gap:5px}.queue-row button{padding:6px 4px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

/* Revised art direction: monochrome editorial UI with a restrained cobalt accent. */
.brand svg{display:none}.brand{border:2px solid var(--ink);padding:0 7px;line-height:1.45;letter-spacing:-1px}.footer-brand{font-size:17px}.tool-icon{background:none;color:var(--ink);border-radius:0;font-size:22px}.category-rail i{display:none}.category-rail [aria-pressed=true]{color:var(--ink)}.directory-heading{display:flex;align-items:baseline;gap:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}.related-links i{color:var(--muted)}

.article-categories{display:flex;gap:10px;flex-wrap:wrap;padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:24px}.article-categories a{padding:6px 12px;border:1px solid var(--line);border-radius:5px;font-size:13px}.guide h3{font-size:15px;font-weight:600}.legacy-page .canvas-background{padding:24px 0;overflow:auto}.legacy-page .image-container{max-width:100%}.legacy-page .article .post .loop-title{font-size:22px}.legacy-page .article .post .meta{font-size:13px;color:var(--muted)}.legacy-page .clock-container{border:1px solid var(--line);border-radius:10px}.legacy-page .digit-card{box-shadow:none;border-radius:8px}.legacy-page .theme-toggle-btn{font-size:13px}.legacy-page .date-display{font-size:17px}
@media(max-width:760px){.legacy-page .canvas-background{margin:0}.legacy-page .image-container{width:280px;height:569px}.legacy-page .tab-pane{overflow-x:auto}.legacy-page .clock-wrapper{gap:6px}.legacy-page .digit-card{width:58px;height:80px}.legacy-page .digit-text{font-size:43px}}

.legacy-page .uploadPreview{max-height:260px;object-fit:contain}.legacy-page .gallery-div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.legacy-page .flex-div,.legacy-page .div-between{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.legacy-page .r-setting{flex:1;min-width:0}.legacy-page .r-show{flex:1;min-width:240px}.legacy-page .qrcode-box{text-align:center;border:1px solid var(--line);border-radius:8px;padding:18px;min-height:260px}.legacy-page .compress-img{max-height:400px;object-fit:contain}.legacy-page .clock-container:fullscreen{border:0;border-radius:0;width:100%;height:100%;justify-content:center}.legacy-page .display-none{display:none}.legacy-page .form-select{max-width:100%;padding:8px;border:1px solid var(--line);border-radius:6px}.legacy-page .grey-section{margin-top:36px;border-top:1px solid var(--line);padding-top:24px}.legacy-page .float-right{float:right}.legacy-page .float-left{float:left}
@media(min-width:1200px){.shell{width:min(1280px,calc(100% - 96px))}.directory-intro h1{font-size:60px}.tool-link h3{font-size:17px}.tool-link p{font-size:14px}.tool-link{min-height:158px}.category-rail button{font-size:15px}.directory{grid-template-columns:184px minmax(0,1fr)}}