@charset "UTF-8";
:root{--ink:#20362e;--muted:#65756b;--green:#126252;--deep:#11483e;--lime:#e0edb5;--paper:#f8f9f4;--line:#dde4d8;--white:#fff;--radius:18px;--shadow:0 12px 34px #243b2510;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;line-height:1.6}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,textarea,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}a,button,input,textarea,select,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #d99630;outline-offset:4px}img,svg{max-width:100%}svg{display:block}.icon{width:24px;height:24px;flex-shrink:0;stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:16px;top:-100px;background:var(--green);color:white;padding:12px 20px;z-index:100}.skip-link:focus{top:12px}.container{width:min(1120px,calc(100% - 64px));margin-inline:auto}.site-header{background:var(--paper);border-bottom:1px solid var(--line)}.header-inner{height:88px;display:flex;align-items:center;justify-content:space-between;gap:36px}.logo{display:flex;align-items:center;gap:10px;font-weight:780;letter-spacing:-1px;font-size:25px}.logo img{width:37px;height:37px}.nav{display:flex;align-items:center;gap:30px;margin-left:auto;font-size:14px;font-weight:550}.nav a:hover,.footer-links a:hover{color:var(--green);text-decoration:underline;text-underline-offset:5px}.lang-switch{font-size:13px;border:1px solid var(--line);background:white;border-radius:8px;padding:6px 12px;white-space:nowrap}.header-status{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}.dot{height:6px;width:6px;background:#70a283;display:inline-block;border-radius:50%}.hero{padding:68px 0 56px;display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}.eyebrow{display:flex;gap:8px;align-items:center;font-size:11px;font-weight:750;text-transform:uppercase;letter-spacing:2px;color:var(--green);margin:0 0 18px}.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}.hero h1{font-size:clamp(44px,4.7vw,66px);font-family:Georgia,"Noto Serif SC",serif;font-weight:450;line-height:1.09;letter-spacing:-2.8px;margin:0 0 22px}.hero h1 em{font-style:normal;color:var(--green)}.hero p{max-width:440px;color:var(--muted);font-size:16px;line-height:1.75;margin:0 0 27px}.button{display:inline-flex;gap:9px;align-items:center;justify-content:center;background:var(--green);color:white;border:1px solid var(--green);border-radius:8px;font-size:14px;font-weight:600;padding:11px 19px;line-height:1.4;transition:background .15s,transform .15s;text-decoration:none}.button:hover{background:var(--deep);border-color:var(--deep)}.button .icon{width:17px;height:17px}.button-secondary{background:white;color:var(--ink);border-color:var(--line)}.button-secondary:hover{background:#f0f4e9;border-color:#b9c7b2}.button-ghost{background:transparent;color:var(--muted);border-color:transparent;padding:9px 12px}.button-ghost:hover{background:#edf1e7;border-color:transparent}.hero-actions{display:flex;gap:14px;align-items:center}.hero-caption{font-size:12px;color:var(--muted);margin-top:19px;display:flex;gap:14px;align-items:center}.hero-caption span{display:flex;gap:5px;align-items:center}.hero-caption .icon{width:14px;height:14px}.hero-art{min-height:330px;position:relative;background:var(--green);border-radius:22px;padding:32px;overflow:hidden}.art-grid{position:absolute;inset:0;background-image:linear-gradient(#ffffff0c 1px,transparent 1px),linear-gradient(90deg,#ffffff0c 1px,transparent 1px);background-size:32px 32px}.art-label{position:relative;font-size:10px;text-transform:uppercase;letter-spacing:2px;color:#d4e8bd;display:flex;align-items:center;justify-content:space-between}.art-label span:last-child{border:1px solid #ffffff40;border-radius:50%;padding:5px 8px}.mini-window{background:var(--paper);position:relative;border:1px solid #ffffff4d;border-radius:12px;padding:20px;transform:rotate(-3deg);margin:24px 10px 0 0;box-shadow:0 15px 30px #052b3030}.mini-heading{display:flex;align-items:center;justify-content:space-between;font-size:12px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:15px}.window-dots{display:flex;gap:4px}.window-dots i{width:5px;height:5px;background:#b5c1b1;border-radius:50%}.mini-code{font-family:ui-monospace,SFMono-Regular,monospace;font-size:13px;line-height:1.85;margin:0;color:#49675c}.mini-code strong{color:var(--green);font-weight:500}.mini-code .indent{padding-left:18px}.mini-result{position:relative;display:flex;align-items:center;gap:12px;background:var(--lime);border-radius:10px;padding:14px 19px;margin:-5px 0 0 65px;transform:rotate(3deg);box-shadow:var(--shadow)}.mini-result .result-tick{background:#c7d998;color:var(--deep);width:28px;height:28px;display:grid;place-items:center;border-radius:50%}.mini-result p{font-size:12px;line-height:1.4;color:var(--deep);margin:0}.mini-result small{font-size:10px;color:#4f6541}.utility-strip{display:flex;justify-content:space-between;gap:24px;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.utility-strip span{display:flex;align-items:center;gap:9px}.utility-strip .icon{width:18px;height:18px;color:var(--green)}.section{padding-block:55px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:24px}.section-kicker{text-transform:uppercase;font-size:10px;letter-spacing:1.7px;color:var(--green);font-weight:750;margin:0 0 6px}h2{font-size:30px;letter-spacing:-1px;line-height:1.25;margin:0 0 10px;font-weight:650}h3{line-height:1.35}p{margin:0 0 16px}.section-subtitle{font-size:14px;color:var(--muted);margin:0}.search-box{position:relative;width:300px}.search-box .icon{position:absolute;left:14px;top:14px;width:17px;height:17px;color:var(--muted)}.search-box input{background:white;border:1px solid var(--line);border-radius:9px;width:100%;padding:11px 42px;font-size:13px;color:var(--ink)}.search-key{position:absolute;right:12px;top:10px;border:1px solid var(--line);border-radius:4px;width:22px;text-align:center;font-size:12px;color:var(--muted)}.filter-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}.filters{display:flex;gap:7px;flex-wrap:wrap}.filter{padding:7px 14px;border:1px solid transparent;background:transparent;font-size:12px;color:var(--muted);border-radius:7px}.filter[aria-pressed=true]{color:var(--deep);background:#e6eddd;border-color:#e6eddd;font-weight:650}.filter:hover{border-color:var(--line)}.tool-count{font-size:11px;color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.tool-card{padding:24px;background:white;border:1px solid var(--line);border-radius:14px;position:relative;transition:transform .2s,box-shadow .2s,border-color .2s;display:flex;flex-direction:column;min-height:230px}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#9cb5a3}.tool-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.tool-icon{display:grid;place-items:center;width:43px;height:43px;border-radius:11px;background:#eaf0df;color:#4d7346}.tool-card[data-category=developer] .tool-icon{background:#e6edf4;color:#54738c}.tool-card[data-category=image] .tool-icon{background:#f4e9dc;color:#a0703e}.tag{font-size:9px;font-weight:650;text-transform:uppercase;letter-spacing:1px;color:#7a847b;border:1px solid #e7ece4;padding:3px 6px;border-radius:4px}.tool-card h3{font-size:17px;letter-spacing:-.3px;margin:0 0 8px}.tool-card p{font-size:12px;line-height:1.7;color:var(--muted);margin:0 0 15px}.tool-card-bottom{margin-top:auto;font-size:11px;font-weight:600;color:var(--green);display:flex;align-items:center;justify-content:space-between}.tool-card-bottom .icon{width:16px;height:16px}.empty-state{padding:35px;text-align:center;background:#eef3e8;border-radius:14px;grid-column:1/-1}.principles{background:#edf2e7;border:1px solid var(--line);border-radius:18px;padding:32px 36px;display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:30px;margin:5px 0 10px}.principles h2{font-family:Georgia,serif;font-size:30px;line-height:1.3;font-weight:450}.principles h3{font-size:14px;margin:8px 0}.principles p{font-size:12px;color:var(--muted);margin:0;line-height:1.8}.principles .icon{color:var(--green)}.text-link{font-size:12px;display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:600}.text-link:hover{text-decoration:underline}.text-link .icon{width:15px}.guides-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.guide-card{border-top:1px solid var(--line);padding:20px 0;display:block}.guide-card:hover h3{color:var(--green)}.guide-number{font-size:10px;font-family:monospace;color:#879282;margin-bottom:14px}.guide-card h3{font-size:17px;margin:0 0 10px;letter-spacing:-.3px}.guide-card p{font-size:12px;color:var(--muted);line-height:1.7;margin-bottom:15px}.site-footer{border-top:1px solid var(--line);margin-top:20px;padding:35px 0 25px}.footer-main{display:flex;justify-content:space-between;gap:32px;align-items:start}.footer-main .logo{font-size:21px}.footer-main .logo img{width:28px;height:28px}.footer-note{font-size:12px;color:var(--muted);margin:8px 0 0}.footer-links{display:flex;gap:24px;font-size:12px;padding-top:8px}.footer-bottom{border-top:1px solid var(--line);margin-top:27px;padding-top:18px;display:flex;justify-content:space-between;font-size:10px;color:#7a877b}.breadcrumb{font-size:12px;color:var(--muted);display:flex;gap:9px;flex-wrap:wrap;padding:25px 0}.breadcrumb a:hover{text-decoration:underline}.page-heading{max-width:770px;padding:12px 0 30px}.page-heading h1{font-family:Georgia,"Noto Serif SC",serif;font-size:46px;letter-spacing:-1.6px;line-height:1.17;font-weight:450;margin:0 0 16px}.page-heading p{color:var(--muted);font-size:15px;margin:0;line-height:1.8}.tool-label-row{display:flex;gap:9px;align-items:center;font-size:11px;font-weight:600;color:var(--green);margin-bottom:13px}.tool-label-row .icon{width:16px;height:16px}.workspace-shell{border:1px solid var(--line);border-radius:16px;background:white;box-shadow:0 8px 24px #243b2508;overflow:hidden}.workspace-title{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#f0f4e9;padding:13px 25px;font-size:12px;border-bottom:1px solid var(--line)}.local-note{display:flex;gap:7px;align-items:center;color:var(--green);font-size:11px}.local-note .icon{width:14px;height:14px}.tool-workspace{padding:25px}.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}.field-label,label{font-size:13px;font-weight:600}.input,.select,.textarea{border:1px solid #ccd7c8;background:#fff;border-radius:8px;padding:10px 12px;color:var(--ink);width:100%;min-width:0}.textarea{min-height:220px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;line-height:1.7;tab-size:2}.textarea[readonly]{background:#f7f9f4}.input[type=range]{padding:10px 0;border:0;accent-color:var(--green)}input[type=checkbox]{accent-color:var(--green);width:16px;height:16px}.toolbar{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin:14px 0}.toolbar .button{font-size:12px;padding:9px 15px}.options-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-bottom:16px}.options-row .field{flex:1;min-width:140px;margin-bottom:0}.options-row .select{width:auto}.checkbox-field{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:450;cursor:pointer}.checkbox-field input{flex-shrink:0}.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));border:1px solid var(--line);border-radius:10px;overflow:hidden;gap:1px;background:var(--line);margin:20px 0}.metric{padding:15px 17px;background:#f6f8f1}.metric-value{font-size:25px;font-weight:600;letter-spacing:-.5px;color:var(--green);display:block}.metric-label{font-size:10px;color:var(--muted);display:block}.status{font-size:12px;color:var(--green);min-height:20px;margin:10px 0 0;overflow-wrap:anywhere}.status-error{color:#a12c24;background:#fff3f0;padding:9px 12px;border-radius:6px}.split-panels{display:grid;grid-template-columns:1fr 1fr;gap:18px}.tool-workspace small,.tool-workspace .hint,.tool-workspace .help-text{display:block;font-size:11px;font-weight:400;color:var(--muted);line-height:1.65;margin-top:5px}.tool-workspace legend{font-size:13px;font-weight:600}.tool-workspace fieldset{border:1px solid var(--line);border-radius:8px;padding:14px;margin:15px 0}.image-drop{border:1px dashed #9cb89f;border-radius:12px;background:#f6f9f0;padding:28px;text-align:center;margin-bottom:22px}.image-drop .input[type=file]{max-width:440px;background:white;font-size:12px;margin:12px auto 0}.image-drop input[type=file]::file-selector-button{background:#e3ecd5;border:0;border-radius:5px;color:var(--green);padding:8px 10px;margin-right:12px;cursor:pointer}.image-drop.drag-over{background:#e3edd3;border-color:var(--green)}.image-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;align-items:start}.image-preview{background-color:#f4f6ef;background-image:linear-gradient(45deg,#e6eadf 25%,transparent 25%),linear-gradient(-45deg,#e6eadf 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e6eadf 75%),linear-gradient(-45deg,transparent 75%,#e6eadf 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0;border:1px solid var(--line);border-radius:10px;min-height:140px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin:16px 0}.image-preview img{object-fit:contain;max-height:340px;max-width:100%;width:auto;display:block}.image-result{overflow-wrap:anywhere}.tool-content{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:50px;margin-top:45px}.tool-content h2{font-size:23px;margin:0 0 18px;letter-spacing:-.6px}.tool-content section{margin-bottom:35px}.steps{padding-left:21px;font-size:14px;color:var(--muted)}.steps li{padding:0 0 12px 8px}.steps li::marker{color:var(--green);font-weight:600}.feature-list{display:grid;gap:17px}.feature-list h3{font-size:14px;margin:0 0 5px}.feature-list p{font-size:13px;color:var(--muted);margin:0;line-height:1.75}.notice{background:#f0f3e9;border:1px solid var(--line);border-radius:12px;padding:21px;font-size:12px;color:var(--muted)}.notice h3{color:var(--ink);font-size:14px;margin:0 0 10px}.notice ul{margin:0;padding-left:17px}.notice li{padding-bottom:7px}.related-list{display:grid;gap:8px;margin-top:18px}.related-item{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:13px;background:white;font-size:12px}.related-item:hover{border-color:#8da797}.related-item .tool-icon{width:30px;height:30px;border-radius:6px}.related-item .icon{width:18px;height:18px}.faq details{border-bottom:1px solid var(--line);padding:16px 0}.faq summary{cursor:pointer;font-size:14px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:15px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--green);font-size:19px}.faq details[open] summary:after{content:"−"}.faq details p{font-size:13px;color:var(--muted);line-height:1.85;margin:13px 0 0}.article-layout{display:grid;grid-template-columns:minmax(0,740px) 250px;gap:70px;padding:0 0 40px}.prose{font-size:15px;line-height:1.9;color:#56665b}.prose h2{font-size:24px;color:var(--ink);margin:30px 0 16px}.prose h3{color:var(--ink);font-size:18px}.prose p{margin-bottom:18px}.prose li{margin-bottom:9px}.prose a{text-decoration:underline;text-underline-offset:3px;color:var(--green)}.article-sidebar{font-size:12px}.article-sidebar nav{position:sticky;top:30px;border-left:1px solid var(--line);padding-left:23px;display:grid;gap:15px}.article-sidebar strong{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--green)}.article-sidebar a:hover{color:var(--green);text-decoration:underline}.page-date{font-size:11px;color:var(--muted);margin:10px 0 25px}.simple-page{max-width:760px;padding-bottom:45px}.noscript{padding:20px;background:#fff3d8;color:#66440b;font-size:14px}.guide-cta{padding:22px;border:1px solid var(--line);border-radius:12px;background:#edf3e5;margin-top:28px}.guide-cta p{font-size:13px}html{scroll-behavior:smooth;scroll-padding-top:24px}:lang(zh-Hans) .hero h1{font-family:Georgia,"Songti SC","Noto Serif SC",serif;letter-spacing:-1px;line-height:1.35}:lang(zh-Hans) .hero p{max-width:440px}:lang(zh-Hans) .page-heading h1{font-size:42px;line-height:1.3}
@media(min-width:1400px){.hero{padding-block:80px 65px}}
@media(max-width:1000px){.hero{gap:35px}.hero-art{padding:24px;min-height:305px}.hero h1{font-size:51px}.tool-content{grid-template-columns:minmax(0,1fr) 270px;gap:28px}.article-layout{gap:35px;grid-template-columns:minmax(0,1fr) 210px}.header-status{display:none}.principles{gap:25px;padding:28px}.hero-caption{flex-wrap:wrap;gap:8px 13px}}
@media(max-width:760px){.container{width:calc(100% - 36px)}.header-inner{height:73px;gap:16px}.logo{font-size:22px}.logo img{width:31px;height:31px}.nav{gap:18px;font-size:12px}.nav .nav-about{display:none}.lang-switch{font-size:11px;padding:5px 8px}.hero{padding:40px 0 32px;grid-template-columns:1fr;gap:32px}.hero h1{font-size:54px;max-width:520px}.hero p{max-width:560px}.hero-art{min-height:290px;max-width:560px;width:100%;padding:25px 40px}.mini-window{max-width:400px}.mini-result{max-width:320px;margin-left:auto}.utility-strip{flex-wrap:wrap;gap:13px 22px;font-size:11px}.utility-strip span:last-child{display:none}.section{padding-block:36px}.section-head{align-items:start;flex-direction:column;gap:20px}.section-head .text-link{align-self:flex-start}.search-box{width:100%}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.tool-card{padding:19px;min-height:223px}.tool-card h3{font-size:16px}.tag{font-size:8px;letter-spacing:.5px}.principles{grid-template-columns:1fr 1fr;gap:23px;padding:25px}.principles>div:first-child{grid-column:1/-1}.principles h2{max-width:400px}.guides-grid{grid-template-columns:1fr;gap:0}.guide-card{padding-block:20px}.guide-card h3{font-size:19px}.footer-main{flex-direction:column;gap:18px}.footer-links{padding:0;gap:20px}.footer-bottom{gap:15px}.page-heading{padding-top:5px}.page-heading h1{font-size:38px}:lang(zh-Hans) .page-heading h1{font-size:33px}.tool-content{grid-template-columns:1fr;gap:10px}.tool-content aside{display:grid;grid-template-columns:1fr 1fr;gap:22px}.tool-content aside section{margin:0}.article-layout{grid-template-columns:1fr}.article-sidebar{display:none}.workspace-title{padding-inline:17px}.tool-workspace{padding:17px}.split-panels{grid-template-columns:1fr}.metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.metric{padding:12px}.metric-value{font-size:23px}.filter-bar{gap:10px}.filter{padding:7px 10px}.tool-count{white-space:nowrap}.image-controls{grid-template-columns:1fr 1fr}.image-drop{padding:23px 15px}}
@media(max-width:440px){.nav{gap:12px}.nav a:first-child{display:none}.hero h1{font-size:46px}.hero-art{padding:23px;min-height:280px}.hero-caption{font-size:11px}.hero-actions{gap:8px}.hero-actions .button{font-size:12px;padding:11px 14px}.tool-grid{grid-template-columns:1fr}.tool-card{min-height:200px}.tool-card-top{margin-bottom:15px}.tool-card h3{font-size:18px}.tool-card p{font-size:13px}.tool-card-bottom{font-size:12px}.principles{grid-template-columns:1fr}.principles>div:first-child{grid-column:auto}.hero-art{max-width:100%}.mini-code{font-size:12px}.mini-result{margin-left:50px}.tool-content aside{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:5px}.filter-bar{flex-wrap:wrap}.tool-count{margin-left:auto}.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.workspace-title{align-items:start;flex-direction:column;gap:4px}.image-controls{grid-template-columns:1fr}.page-heading h1{font-size:34px}.image-preview img{max-height:260px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}