@charset "UTF-8";
:root{--paper:#faf9f6;--white:#fff;--ink:#202c43;--muted:#6a7585;--line:#dfe3e9;--blue:#284fd5;--orange:#d66d3d;--soft:#eef2fa;--serif:Georgia,"Songti SC","SimSun",serif;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;scrollbar-gutter:stable;scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0;font-size:15px;line-height:1.6}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}img{max-width:100%;height:auto}svg{display:block}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #bd653d;outline-offset:5px}[hidden]{display:none!important}.container{width:calc(100% - 80px);max-width:1240px;margin:0 auto}.skip{position:fixed;left:10px;top:-90px;z-index:10;padding:12px;background:var(--ink);color:white}.skip:focus{top:10px}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.site-header{border-bottom:1px solid var(--line);background:var(--paper)}.header-row{display:flex;align-items:center;min-height:94px;gap:32px}.brand{display:inline-flex;align-items:center;gap:11px;flex:none}.brand>svg{width:38px;height:38px;fill:none;stroke:currentColor;stroke-width:1.6;color:var(--blue)}.brand>span{font-size:25px;font-weight:700;letter-spacing:2px;line-height:1.2}.brand small{font-size:9px;font-weight:400;letter-spacing:2.8px;display:block;margin-top:6px}.desktop-nav{display:flex;gap:23px;align-items:center;margin-left:auto;font-size:13px;font-weight:600}.desktop-nav a{padding:36px 0 32px;white-space:nowrap;border-bottom:2px solid transparent}.desktop-nav a:hover,.desktop-nav [aria-current]{color:var(--blue);border-color:var(--blue)}.header-about{font-size:12px;padding-left:24px;border-left:1px solid var(--line);white-space:nowrap}.mobile-nav{display:none}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.6px;color:var(--muted);line-height:1.7}.button{display:inline-flex;gap:28px;align-items:center;padding:13px 20px;font-size:13px;font-weight:600;border-radius:5px}.primary{background:var(--blue);color:white}.primary:hover{background:#1d3eae}.text-link{font-size:12px;font-weight:600}.text-link:hover{color:var(--blue)}.product-mark{display:flex;align-items:center;justify-content:center;width:53px;height:53px;border-radius:12px;font-family:Georgia,serif;font-weight:bold;font-size:27px;flex:none;letter-spacing:-1px}.orange{background:#f9e8dc;color:#bc5726}.lavender{background:#eee9fb;color:#7455ad}.blue{background:#e3ebff;color:#2b57c2}.mint{background:#e8f1de;color:#668d40}.coral{background:#f8e2dc;color:#c06852}.teal{background:#dcf0ee;color:#3d8c83}.category-grid{display:grid;grid-template-columns:repeat(6,1fr);border:1px solid var(--line);border-radius:7px;margin-bottom:61px;background:#fff}.category-grid a{position:relative;padding:18px 16px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:3px}.category-grid a:last-child{border:0}.category-grid a:hover{background:var(--soft)}.category-number{font:10px Georgia,serif;color:var(--orange);margin-bottom:8px}.category-grid strong{font-size:13px}.category-grid a>span:not(.category-number){font-size:10px;color:var(--muted)}.category-grid b{position:absolute;right:15px;top:16px;font-weight:400;color:#93a1b5}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:24px}.section-heading .eyebrow{margin:0 0 7px}.section-heading h2{font-size:29px;line-height:1.4;font-weight:500;font-family:var(--serif);letter-spacing:-.5px;margin:0}.catalog-controls{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:11px}.filter-tabs{display:flex;gap:6px;flex-wrap:wrap}.filter-tabs button{border:1px solid transparent;background:transparent;padding:8px 13px;color:var(--muted);font-size:12px;border-radius:4px}.filter-tabs button.active{border-color:var(--line);background:#fff;color:var(--ink)}.filter-tabs button:hover{color:var(--blue)}.search-box{display:flex;align-items:center;gap:10px;background:white;border:1px solid var(--line);border-radius:5px;padding:8px 11px;min-width:260px}.search-box svg{width:15px;height:15px;stroke:#8391a5;fill:none;stroke-width:1.7;flex:none}.search-box input{font-size:12px;border:0;background:transparent;min-width:0;width:100%;padding:2px;color:var(--ink)}.search-box:focus-within{border-color:var(--blue)}.search-box input:focus{outline:0}.filter-result{font-size:10px;color:var(--muted);margin:0 0 16px}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:19px}.tool-card{background:var(--white);border:1px solid var(--line);border-radius:7px;transition:transform .2s,border-color .2s;min-width:0}.tool-card:hover{transform:translateY(-3px);border-color:#9badde}.tool-card-link{display:flex;flex-direction:column;min-height:284px;padding:23px}.tool-card-top{display:flex;gap:12px;align-items:center}.tool-kind{font-size:10px;color:var(--muted)}.card-arrow{margin-left:auto;color:#92a0b5;font-size:17px}.tool-card h3{font-size:23px;margin:19px 0 9px;letter-spacing:-.5px}.tool-card p{font-size:12px;line-height:1.85;color:var(--muted);margin:0 0 16px;min-height:44px}.platforms{display:flex;gap:5px;flex-wrap:wrap;margin-top:auto;margin-bottom:17px}.platforms span{font-size:9px;background:#f3f5f8;color:#67758b;border-radius:3px;padding:3px 7px}.card-bottom{display:flex;justify-content:space-between;gap:8px;font-size:10px;color:#7a8798;padding-top:13px;border-top:1px solid #edf0f5}.card-bottom>span:last-child{color:var(--blue)}.empty-state{border:1px dashed var(--line);padding:40px;color:var(--muted);text-align:center}.reading-section{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:58px;margin:64px 0 80px}.guide-row{display:flex;align-items:center;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}.guide-row:first-child{padding-top:0}.guide-row img{width:140px;aspect-ratio:3/2;object-fit:cover;border-radius:5px;flex:none}.guide-row>div{min-width:0}.guide-row .eyebrow{font-size:9px;letter-spacing:.8px}.guide-row h3{font-size:17px;line-height:1.65;margin:5px 0 7px}.guide-row p{font-size:11px;color:var(--muted);margin:0 0 7px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.guide-row time{font-size:10px;color:#8a94a3}.row-arrow{margin-left:auto;color:#7c8ca4}.guide-row:hover h3{color:var(--blue)}.site-footer{background:#1d2e50;color:#edf1fa;padding:42px 0 19px}.site-footer .brand>svg{color:#d4def6}.footer-grid{display:flex;justify-content:space-between;gap:32px;align-items:center}.footer-grid p{font-size:11px;color:#aebbd3;margin:16px 0 25px}.footer-grid nav{display:flex;gap:24px;font-size:11px;color:#c2cee4}.footer-bottom{border-top:1px solid #ffffff18;padding-top:18px;display:flex;justify-content:space-between;font-size:9px;color:#91a1c0}.breadcrumb{display:flex;gap:12px;color:#7c8798;font-size:10px;flex-wrap:wrap;margin-bottom:29px}.breadcrumb a:hover{color:var(--blue)}.listing-page,.detail-page,.info-page{padding-top:33px;padding-bottom:80px}.listing-heading{max-width:780px;margin-bottom:37px}.listing-heading h1{font-family:var(--serif);font-size:43px;line-height:1.35;font-weight:500;margin:8px 0 16px}.listing-heading>p:last-child{color:var(--muted);font-size:14px;line-height:1.9}.listing-page>.category-grid{margin-bottom:33px}.listing-page>.guide-list{max-width:900px}.detail-heading{border-bottom:1px solid var(--line);padding-bottom:30px;margin-bottom:32px;max-width:1100px}.detail-label{display:flex;gap:14px;align-items:center;margin-bottom:21px}.detail-label .product-mark{height:40px;width:40px;border-radius:9px;font-size:22px}.detail-heading h1{font-family:var(--serif);font-size:41px;line-height:1.5;letter-spacing:-.8px;font-weight:500;max-width:930px;margin:0 0 17px;overflow-wrap:anywhere}.detail-heading>p{font-size:15px;color:var(--muted);max-width:800px;line-height:1.9;margin:0 0 19px}.detail-meta{display:flex;gap:22px;font-size:10px;color:#7d8898;flex-wrap:wrap}.detail-layout{display:grid;grid-template-columns:minmax(0,810px) 280px;justify-content:space-between;gap:65px}.prose{font-size:16px;line-height:2.05;min-width:0;max-width:810px;overflow-wrap:anywhere}.prose p{margin:0 0 22px}.prose h2{font-family:var(--serif);font-weight:500;font-size:26px;line-height:1.65;margin:35px 0 17px;scroll-margin-top:22px}.prose h3{font-size:18px;margin:28px 0 12px}.prose a{color:#315abd;text-decoration:underline;text-underline-offset:3px}.prose li{margin-bottom:9px}.prose ul,.prose ol{padding-left:23px}.prose table{display:block;overflow-x:auto;max-width:100%;border-collapse:collapse;margin:24px 0;font-size:13px}.prose th,.prose td{border:1px solid var(--line);padding:11px 13px;min-width:88px;vertical-align:top}.prose th{background:var(--soft);font-weight:600}.detail-figure{margin:0 0 26px}.detail-figure img{display:block;width:100%;height:auto;border:1px solid #e0e5ed;border-radius:5px}.detail-figure figcaption{font-size:10px;color:#8b95a3;line-height:1.7;margin-top:9px}.facts-card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:24px}.facts-card>h2,.toc h2,.related h2{font-size:15px;font-weight:600;margin:7px 0 18px}.facts-card .eyebrow{margin:0}.facts-card dl{margin:0 0 20px}.facts-card dl>div{padding:11px 0;border-bottom:1px solid #edf0f4}.facts-card dt{font-size:10px;color:var(--muted);margin-bottom:4px}.facts-card dd{font-size:12px;margin:0;line-height:1.8}.source-anchor{font-size:11px;color:var(--blue)}.toc,.related{padding-top:28px}.toc a,.related a{display:block;font-size:12px;color:#738198;border-bottom:1px solid var(--line);padding:10px 0;line-height:1.7}.toc a:hover,.related a:hover{color:var(--blue)}.sources{padding-top:14px;margin-top:30px;border-top:1px solid var(--line)}.sources ul{font-size:12px}.sources>p{font-size:11px;color:var(--muted)}.info-page>.prose{max-width:800px}.policy-date{font-size:12px;color:var(--muted);margin-top:40px!important}.not-found{padding-top:110px;padding-bottom:130px}.not-found h1{font-family:var(--serif);font-size:43px;font-weight:500}.not-found p{color:var(--muted)}
@media(min-width:1100px){.detail-aside .facts-card{position:sticky;top:24px}}
@media(max-width:1190px){.desktop-nav{gap:14px}.header-row{gap:19px}.header-about{padding-left:17px}.reading-section{gap:35px}.detail-layout{gap:40px;grid-template-columns:minmax(0,1fr) 260px}}
@media(max-width:1020px){.container{width:calc(100% - 48px)}.desktop-nav,.header-about{display:none}.mobile-nav{display:block;margin-left:auto;position:relative;font-size:12px}.mobile-nav summary{border:1px solid var(--line);padding:8px 12px;list-style:none;cursor:pointer}.mobile-nav summary:after{content:" +";margin-left:10px}.mobile-nav nav{position:absolute;right:0;top:49px;z-index:8;background:var(--paper);border:1px solid var(--line);padding:14px;width:200px;box-shadow:0 12px 24px #1d2e5010}.mobile-nav nav a{display:block;padding:9px}.header-row{min-height:80px}.category-grid{grid-template-columns:repeat(3,1fr)}.category-grid a:nth-child(3){border-right:0}.category-grid a:nth-child(-n+3){border-bottom:1px solid var(--line)}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.reading-section{grid-template-columns:minmax(0,1fr) 260px;gap:28px}.guide-row{gap:14px}.guide-row img{width:110px}.guide-row h3{font-size:15px}.guide-row p{display:none}.row-arrow{display:none}.detail-heading h1{font-size:35px}.detail-layout{grid-template-columns:minmax(0,1fr)}.detail-aside{display:grid;grid-template-columns:1fr 1fr;gap:25px}.detail-aside .facts-card{grid-row:span 2}.toc,.related{padding:0}.footer-grid nav{gap:15px}}
@media(max-width:680px){.container{width:calc(100% - 36px)}.header-row{min-height:74px}.brand>svg{width:31px;height:31px}.brand>span{font-size:22px}.brand small{font-size:8px}.button{padding:12px 16px}.category-grid{margin-bottom:36px}.category-grid a{padding:14px 10px;gap:3px}.category-number{margin-bottom:4px;font-size:9px}.category-grid strong{font-size:12px}.category-grid a>span:not(.category-number){font-size:9px}.category-grid b{right:9px;top:12px;font-size:11px}.section-heading h2{font-size:26px}.section-heading .text-link{font-size:10px}.catalog-controls{flex-direction:column;align-items:stretch;gap:13px}.filter-tabs{gap:3px}.filter-tabs button{font-size:11px;padding:7px 10px}.search-box{min-width:0;padding:10px}.filter-result{margin-top:14px}.tool-grid{grid-template-columns:1fr;gap:13px}.tool-card-link{min-height:0;padding:20px}.tool-card-top .product-mark{width:44px;height:44px;font-size:24px}.tool-card h3{font-size:23px;margin-top:13px}.tool-card p{min-height:0;font-size:12px;line-height:1.9;margin-bottom:14px}.platforms{margin-bottom:13px}.tool-kind{font-size:10px}.card-bottom{font-size:10px}.reading-section{grid-template-columns:1fr;gap:29px;margin:40px 0 47px}.guide-row{gap:14px;padding:18px 0;align-items:flex-start}.guide-row img{width:104px;border-radius:4px}.guide-row h3{font-size:14px;line-height:1.8;margin:4px 0 7px}.guide-row .eyebrow{font-size:8px}.footer-grid{align-items:start;flex-direction:column;gap:2px}.footer-grid nav{flex-wrap:wrap;gap:19px;font-size:10px}.footer-grid p{margin-bottom:16px}.footer-bottom{margin-top:28px;font-size:8px;gap:12px}.site-footer{padding-top:30px}.listing-page,.detail-page,.info-page{padding-top:23px;padding-bottom:44px}.breadcrumb{gap:8px;margin-bottom:25px;font-size:9px}.listing-heading{margin-bottom:27px}.listing-heading h1{font-size:33px}.listing-heading>p:last-child{font-size:13px}.listing-page .category-grid{margin-bottom:25px}.detail-label{margin-bottom:16px;gap:10px}.detail-label .eyebrow{font-size:8px;letter-spacing:1px}.detail-heading{padding-bottom:22px;margin-bottom:24px}.detail-heading h1{font-size:29px;line-height:1.55;letter-spacing:-.5px;margin-bottom:15px}.detail-heading>p{font-size:13px;line-height:1.9}.detail-meta{font-size:9px;gap:13px}.prose{font-size:15px;line-height:2.05}.prose h2{font-size:23px;margin:28px 0 15px}.prose p{margin-bottom:21px}.prose th,.prose td{padding:9px 10px;min-width:90px;font-size:12px}.detail-figure figcaption{font-size:9px}.detail-layout{gap:29px}.detail-aside{display:block}.facts-card{padding:21px}.toc,.related{padding-top:25px}.sources>p{font-size:10px}.not-found{padding-top:70px;padding-bottom:85px}.not-found h1{font-size:32px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* A compact Chinese tool directory: search and product information first. */
.header-row{min-height:76px}.brand>span{font-size:24px;letter-spacing:1px}.desktop-nav{font-size:14px;gap:27px}.desktop-nav a{padding:25px 0 22px}.directory-home{padding-top:32px}.directory-intro{margin-bottom:24px}.directory-intro h1{font-size:32px;line-height:1.4;letter-spacing:0;margin:0 0 9px;font-weight:700}.directory-intro>p{color:var(--muted);font-size:14px;line-height:1.9;margin:0;max-width:760px}.category-grid{margin-bottom:29px}.category-grid a{padding:14px 16px;gap:4px}.category-grid strong{font-size:14px}.category-grid a>span:not(.category-number){font-size:11px}.category-grid a[aria-current]{background:var(--soft);color:var(--blue)}.section-heading{margin-bottom:17px;align-items:center}.section-heading h2{font:600 22px/1.5 Arial,"PingFang SC","Microsoft YaHei",sans-serif;letter-spacing:0}.tool-card-link{min-height:265px;padding:21px}.tool-card h3{margin-top:15px}.tool-card p{font-size:13px;min-height:50px;line-height:1.85}.card-bottom{font-size:11px}.eyebrow{letter-spacing:0;font-size:11px;font-weight:400}.reading-section{margin-top:35px;margin-bottom:48px;gap:36px;grid-template-columns:minmax(0,1fr) 280px}.guide-row{padding:19px 0}.guide-row img{width:140px}.guide-row h3{font-size:17px;line-height:1.65}.guide-row p{font-size:13px}.tool-help{border-left:1px solid var(--line);padding-left:25px;align-self:start;margin-top:6px}.tool-help h2{font-size:17px;line-height:1.7;margin:0 0 12px}.tool-help p{font-size:13px;line-height:1.95;color:var(--muted);margin:0 0 15px}.tool-help a{font-size:12px;color:var(--blue)}.site-footer{padding-top:30px}.footer-grid nav{font-size:12px}.footer-bottom{margin-top:23px}.detail-heading h1,.listing-heading h1,.not-found h1{font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-weight:700}.detail-heading h1{font-size:35px;line-height:1.6}.prose h2{font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-weight:600;font-size:24px}.detail-label{margin-bottom:17px}.detail-label .eyebrow{font-size:12px;letter-spacing:0}.detail-meta{font-size:11px}.sources{margin-top:30px}.facts-card>h2{margin-top:0}.guide-row .eyebrow{font-size:11px}
@media(max-width:1020px){.header-row{min-height:72px}.desktop-nav{display:none}.reading-section{grid-template-columns:minmax(0,1fr) 240px;gap:25px}.guide-row img{width:110px}.guide-row h3{font-size:15px}.category-grid{margin-bottom:25px}.tool-card-link{min-height:265px}}
@media(max-width:680px){.header-row{min-height:68px}.brand>span{font-size:23px}.directory-home{padding-top:24px}.directory-intro{margin-bottom:20px}.directory-intro h1{font-size:27px}.directory-intro>p{font-size:13px}.category-grid a{padding:12px 11px;gap:2px}.category-grid strong{font-size:13px}.category-grid a>span:not(.category-number){font-size:10px}.section-heading h2{font-size:21px}.tool-card-link{min-height:0;padding:19px}.tool-card p{min-height:0;font-size:13px}.tool-card h3{margin-top:13px}.card-bottom{font-size:10px}.reading-section{grid-template-columns:1fr;gap:26px;margin-top:30px;margin-bottom:35px}.guide-row{gap:13px}.guide-row img{width:102px}.guide-row h3{font-size:14px;line-height:1.75}.guide-row .eyebrow{font-size:10px}.tool-help{padding:18px 0 0;border-left:0;border-top:1px solid var(--line)}.tool-help h2{font-size:17px}.tool-help p{font-size:13px}.detail-heading h1{font-size:27px;line-height:1.55}.listing-heading h1{font-size:29px}.prose h2{font-size:22px}.detail-label .eyebrow{font-size:11px}.detail-meta{font-size:10px}.footer-grid nav{font-size:11px}}