:root{--amber:#a06414;--amber-soft:#c8892a;--clay:#8c3c14;--sand:#e9dcc6;--paper:#f6f6f2;--ink:#1d2825;--green:#173c34;--muted:#606b65;--line:#d7ddd6;--tint:#e6ece5;--serif:Georgia,'Songti SC','SimSun',serif;--sans:Arial,'Microsoft YaHei','PingFang SC',sans-serif}*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:105px}body{margin:0;font:16px/1.7 var(--sans);background:var(--paper);color:var(--ink)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}button,summary{cursor:pointer}button{border:0}img{display:block;max-width:100%}::selection{background:var(--sand)}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--green);outline-offset:5px}button:disabled{cursor:default;opacity:.5}[hidden]{display:none!important}.wrap{width:calc(100% - 96px);max-width:1344px;margin-inline:auto}.site-header{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:1px solid var(--line)}.header-inner{min-height:88px;display:flex;align-items:center;gap:48px}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand img{width:34px;height:34px}.brand-name{font-size:29px;font-weight:600;letter-spacing:-1.7px}.desktop-nav{display:flex;gap:28px;align-items:center;flex:1;font-size:14px}.desktop-nav>a,.nav-group>summary{padding:29px 0;list-style:none}.nav-group>summary::-webkit-details-marker{display:none}.nav-group>summary:after{content:'⌄';margin-left:7px;font-size:12px}.desktop-nav [aria-current=page],.desktop-nav [data-active=true]{text-decoration:underline;text-underline-offset:8px}.header-actions{display:flex;align-items:center;gap:24px;font-size:14px}.search-link{display:flex;gap:9px;align-items:center}.search-icon{width:15px;height:15px;border:1.5px solid;border-radius:50%;position:relative;display:inline-block}.search-icon:after{content:'';position:absolute;width:6px;height:1.5px;background:currentColor;right:-4px;bottom:-2px;transform:rotate(45deg)}.button{display:inline-flex;justify-content:center;align-items:center;gap:30px;padding:12px 20px;background:var(--green);color:white;font-size:14px;border:1px solid var(--green);min-height:46px}.button:hover{background:#285245}.button.secondary{background:transparent;color:var(--green);border-color:#8eaaa0}.button.secondary:hover{background:var(--tint)}.text-link{display:inline-flex;gap:20px;align-items:center;font-size:14px;border-bottom:1px solid currentColor;padding-bottom:3px}.mega{position:absolute;top:100%;left:0;width:100%;background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid #b3bfb6;padding:30px 0 38px}.mega-inner{display:grid;grid-template-columns:1fr 3fr;gap:70px}.mega-lead p{font-size:14px;color:var(--muted);margin:10px 0}.mega-lead strong{font:30px var(--serif);font-weight:400}.mega-links{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 28px}.mega-links a{padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}.mega-links a:hover{text-decoration:underline}.mega-links span{display:block;font-size:12px;color:var(--muted);margin-top:3px}.mobile-nav{display:none}.crumbs{display:flex;gap:12px;font-size:12px;color:var(--muted);padding-top:24px}.eyebrow{font-size:12px;letter-spacing:1.8px;text-transform:uppercase;margin:0 0 22px;color:var(--amber)}.hero{padding-top:70px;padding-bottom:54px}.hero-main{display:grid;grid-template-columns:1.02fr 1fr;gap:66px;align-items:center}.hero h1{font-size:clamp(42px,4.7vw,70px);letter-spacing:-2px;line-height:1.22;font-weight:500;margin:0 0 25px}.hero .lead{font-size:17px;line-height:1.9;color:var(--muted);max-width:510px;margin-bottom:28px}.hero-line{font:26px var(--serif);color:var(--green);margin-bottom:22px}.action-row{display:flex;gap:16px;flex-wrap:wrap;align-items:center;margin-top:25px}.hero-image{margin:0}.hero-image img{width:100%;aspect-ratio:1.17;object-fit:cover}.hero-image figcaption{display:flex;justify-content:space-between;gap:14px;font-size:11px;color:var(--muted);margin-top:13px;letter-spacing:1px}.hero-footer{margin-top:56px;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(3,1fr)}.hero-footer a{padding:22px 24px;font-size:14px;display:flex;justify-content:space-between;gap:12px}.hero-footer a:first-child{padding-left:0}.hero-footer a+a{border-left:1px solid var(--line)}.hero-footer a:hover{background:var(--tint)}.section{padding-top:74px;padding-bottom:80px;border-top:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:34px}.section-head h2{font-size:34px;line-height:1.3;font-weight:500;letter-spacing:-.7px;margin:0}.section-head p{margin:12px 0 0;color:var(--muted);font-size:16px;max-width:580px}.section-head .eyebrow{font-size:12px;margin-bottom:14px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{border:1px solid var(--line);padding:28px;display:flex;flex-direction:column;align-items:start;min-width:0}.card:hover{border-color:#8c9f91}.card h3{font-size:23px;font-weight:500;line-height:1.45;margin:16px 0 11px}.card p{font-size:15px;color:var(--muted);margin:0 0 25px}.card-bottom{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;width:100%;font-size:12px;color:var(--muted)}.product-face{height:190px;padding:25px;background:var(--tint);display:flex;flex-direction:column;justify-content:space-between;width:100%}.product-face.dark{background:var(--green);color:var(--paper)}.product-face strong{font:44px var(--serif);letter-spacing:-1px;font-weight:400}.product-face span{font-size:12px;letter-spacing:2px}.product-card{padding:0;border:0}.card-copy{padding:22px 0 0;width:100%;display:flex;flex-direction:column;flex:1}.product-card h3{margin:0 0 9px}.product-card .card-bottom{border-top:1px solid var(--line);margin-top:auto}.dark-section{background:var(--green);color:var(--paper);border:0}.dark-section .eyebrow,.dark-section p{color:#becdc4}.dark-section .button{background:var(--paper);border-color:var(--paper);color:var(--green)}.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}.feature-split h2{font-size:44px;font-weight:400;line-height:1.4;letter-spacing:-1px;margin:15px 0 23px}.feature-split p{line-height:1.9}.feature-split img{width:100%;aspect-ratio:1.5;object-fit:cover}.image-card{display:block}.image-card figure{margin:0}.image-card img{aspect-ratio:1.5;width:100%;object-fit:cover;background:var(--tint)}.image-card h3{font-size:24px;font-weight:500;margin:20px 0 8px}.image-card p{font-size:15px;color:var(--muted);margin:0}.image-card .meta{font-size:12px;margin-top:13px;color:var(--muted)}.page-head{padding-top:54px;padding-bottom:43px}.page-head h1{font-size:clamp(40px,4.5vw,64px);line-height:1.2;font-weight:500;letter-spacing:-1.8px;margin:0 0 23px}.page-head .lead{font-size:18px;color:var(--muted);max-width:790px;line-height:1.8;margin:0}.page-content{padding-bottom:85px}.notice{border-left:3px solid #7f9885;background:#e9ede6;padding:16px 20px;font-size:14px;color:#4e6054;margin:25px 0}.tabs{display:flex;border-bottom:1px solid var(--line);flex-wrap:wrap;margin-bottom:32px}.tabs a,.tabs button{display:block;padding:14px 20px;background:none;font-size:14px;border-bottom:2px solid transparent}.tabs a:first-child{padding-left:0;padding-right:26px}.tabs [aria-current=page]{border-bottom-color:var(--green);font-weight:600}.filters{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:20px 0 30px;flex-wrap:wrap}.filters>div{display:flex;gap:8px;flex-wrap:wrap}.chip{background:none;border:1px solid var(--line);padding:7px 16px;font-size:14px}.chip[aria-pressed=true]{background:var(--green);color:white;border-color:var(--green)}.results-note{color:var(--muted);font-size:13px}.row-list{border-top:1px solid var(--line)}.list-row{display:grid;grid-template-columns:150px 1fr 24px;gap:25px;align-items:start;padding:26px 0;border-bottom:1px solid var(--line)}.list-row:hover{background:#edf0e9}.list-row .meta{font-size:12px;color:var(--muted);padding-top:4px}.list-row h3{font-size:22px;font-weight:500;margin:0 0 8px}.list-row p{color:var(--muted);font-size:15px;margin:0;max-width:800px}.resource-grid .card{min-height:240px}.resource-grid .eyebrow{margin-bottom:0}.article-layout{display:grid;grid-template-columns:210px minmax(0,780px);gap:75px;align-items:start;padding-bottom:90px}.article-sidebar{position:sticky;top:125px;font-size:13px}.article-sidebar a{display:block;padding:8px 0;color:var(--muted)}.article-sidebar strong{font-size:12px;letter-spacing:1px;display:block;margin-bottom:15px}.article-body{min-width:0}.article-body h2{font-size:28px;font-weight:500;line-height:1.45;margin:40px 0 17px;scroll-margin-top:110px}.article-body section:first-child h2{margin-top:0}.article-body p,.article-body li{font-size:16px;line-height:1.95;color:#45534b}.article-body ul,.article-body ol{padding-left:24px}.article-body li+li{margin-top:10px}.article-body blockquote{border-left:2px solid #79917e;margin:30px 0;padding:10px 25px;font:23px/1.65 var(--serif)}.article-meta{display:flex;flex-wrap:wrap;gap:22px;font-size:12px;color:var(--muted);margin-top:25px}.article-body pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#e7ece4;padding:24px;font:14px/1.8 Consolas,monospace}.article-body img{margin:25px 0}.related{border-top:1px solid var(--line);padding-top:25px;margin-top:45px}.related>a{display:block;margin-top:12px;text-decoration:underline;text-underline-offset:4px}.tool-layout{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}.tool-panel{border:1px solid var(--line);padding:28px;min-width:0}.tool-panel h2{font-size:24px;font-weight:500;margin:0 0 20px}.field{display:block;margin-bottom:20px}.field>span{display:block;font-size:14px;margin-bottom:8px}.field input,.field textarea,.field select,.search-input{width:100%;background:#fff;border:1px solid #bdc9bd;border-radius:0;padding:12px 13px;min-height:46px}.field textarea{min-height:105px;resize:vertical;line-height:1.7}.field small{display:block;font-size:12px;color:var(--muted);margin-top:5px}.tool-result{min-height:360px;white-space:pre-wrap;overflow-wrap:anywhere;background:var(--tint);padding:24px;font-size:15px;line-height:1.9;margin:0}.tool-status{min-height:25px;font-size:13px;color:var(--green);margin:12px 0 0}.form-actions{display:flex;gap:12px;flex-wrap:wrap}.form-actions .button{gap:10px}.tool-help{font-size:13px;color:var(--muted);margin:18px 0 0}.stats-row{display:flex;flex-wrap:wrap;gap:24px;border-bottom:1px solid var(--line);padding-bottom:15px;font-size:13px;color:var(--muted);margin-bottom:22px}.toc-result{padding-left:22px}.toc-result li{padding:5px 0;font-size:15px}.step-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);margin-top:30px}.step{padding:27px 25px 10px 0}.step+.step{border-left:1px solid var(--line);padding-left:25px}.step .number{font:32px var(--serif);color:#718577}.step h3{font-size:20px;font-weight:500}.step p{font-size:14px;color:var(--muted)}.split-content{display:grid;grid-template-columns:1fr 1.65fr;gap:65px}.split-content h2{font-size:36px;font-weight:500;margin:0}.split-content p{margin:0 0 22px;line-height:1.95;color:var(--muted)}.empty{padding:44px;border:1px solid var(--line);text-align:center;background:#edf0e9}.empty h2{font-size:24px;font-weight:500}.empty p{color:var(--muted)}.brand-panel{background:var(--green);padding:55px;color:var(--paper);display:flex;align-items:center;justify-content:center;min-height:310px;gap:25px}.brand-panel img{width:90px}.brand-panel span{font-size:64px;letter-spacing:-3px;font-weight:600}.brand-swatches{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}.swatch{padding:30px;border:1px solid var(--line);font-size:14px}.swatch.dark{background:var(--green);color:white}.swatch.amber{background:var(--amber);color:#fff}.swatch.clay{background:var(--clay);color:#fff}.logo-downloads{display:flex;gap:20px;flex-wrap:wrap;margin-top:20px}.logo-downloads a{font-size:14px;text-decoration:underline}.avatar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.avatar-grid figure{margin:0;border:1px solid var(--line);padding:30px;text-align:center}.avatar-grid img{width:170px;margin:auto}.avatar-grid figcaption{font-size:12px;margin-top:20px;color:var(--muted)}.avatar-grid .circle{border-radius:50%}.search-box{max-width:900px}.search-input{font-size:22px;padding:20px;margin-bottom:20px}.search-results .list-row{grid-template-columns:125px 1fr 24px}.faq{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line);padding:20px 0}.faq summary{font-size:18px}.faq p{max-width:850px;color:var(--muted);line-height:1.9}.site-footer{border-top:1px solid var(--line);padding:54px 0 25px}.footer-top{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:32px}.footer-brand{font-size:32px;letter-spacing:-1.5px;font-weight:600}.footer-top p{font-size:13px;color:var(--muted);max-width:200px}.footer-col strong{display:block;font-size:13px;margin:9px 0 20px}.footer-col a{display:block;font-size:13px;color:var(--muted);margin:8px 0}.footer-col a:hover{text-decoration:underline}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:45px;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.skip{position:fixed;top:10px;left:15px;z-index:50;background:white;padding:10px 20px}.skip:not(:focus){clip-path:inset(50%);width:1px;height:1px;overflow:hidden}.no-js{padding:10px 24px;background:#e4eadf;font-size:13px}.backlinks{display:flex;gap:25px;flex-wrap:wrap;margin-top:28px}.edition-cover{background:var(--green);color:var(--paper);padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.edition-cover h2{font:56px/1.2 var(--serif);font-weight:400;margin:15px 0}.edition-cover img{width:100%;aspect-ratio:1.5;object-fit:cover}.edition-cover p,.edition-cover .eyebrow{color:#c6d3cb}.site-map{columns:3;column-gap:40px}.site-map a{display:block;break-inside:avoid;padding:8px 0;font-size:14px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:14px}th{font-weight:500;background:var(--tint)}
img{height:auto}.page-head h1{text-wrap:balance}
@media(max-width:1100px){.wrap{width:calc(100% - 56px)}.header-inner{gap:30px}.desktop-nav{gap:20px}.header-actions{gap:16px}.header-actions .button{display:none}.hero-main{gap:35px}.hero h1{font-size:52px}.mega-inner{gap:30px}.article-layout{gap:40px;grid-template-columns:185px minmax(0,1fr)}.footer-top{gap:20px}}
@media(max-width:760px){.wrap{width:calc(100% - 36px)}.header-inner{min-height:72px;justify-content:space-between;gap:15px}.brand-name{font-size:26px}.brand img{width:28px;height:28px}.brand{gap:9px}.desktop-nav{display:none}.header-actions{margin-left:auto}.header-actions .search-label{display:none}.mobile-nav{display:block}.mobile-nav>summary{list-style:none;font-size:14px;padding:15px 5px}.mobile-nav>summary::-webkit-details-marker{display:none}.mobile-nav>summary:after{content:' ☰'}.mobile-panel{position:absolute;top:100%;left:0;right:0;background:var(--paper);border-bottom:1px solid #9cac9c;padding:15px 22px 25px;max-height:calc(100dvh - 72px);overflow:auto}.mobile-panel details{padding:10px 0;border-bottom:1px solid var(--line)}.mobile-panel summary{font-size:17px}.mobile-panel>a{display:block;padding:12px 0;border-bottom:1px solid var(--line)}.mobile-panel details a{display:block;padding:9px 12px;font-size:14px}.crumbs{font-size:11px;padding-top:20px}.hero{padding-top:42px;padding-bottom:26px}.hero-main{grid-template-columns:1fr;gap:34px}.hero h1{font-size:46px;letter-spacing:-1.4px;margin-bottom:20px}.hero .lead{font-size:16px}.hero-line{font-size:24px}.hero-image img{aspect-ratio:1.3}.hero-image figcaption{font-size:10px;letter-spacing:0}.hero-footer{margin-top:30px;grid-template-columns:1fr}.hero-footer a{padding:15px 0}.hero-footer a+a{border-left:0;border-top:1px solid var(--line)}.eyebrow{font-size:11px;letter-spacing:1.4px}.section{padding-top:46px;padding-bottom:48px}.section-head{display:block;margin-bottom:28px}.section-head h2{font-size:29px}.section-head p{font-size:15px}.section-head>.text-link{margin-top:20px}.grid,.grid.two{grid-template-columns:1fr;gap:28px}.product-face{height:165px}.card{padding:24px}.product-card{padding:0}.feature-split{grid-template-columns:1fr;gap:30px}.feature-split h2{font-size:35px}.page-head{padding-top:37px;padding-bottom:30px}.page-head h1{font-size:40px;letter-spacing:-1px}.page-head .lead{font-size:16px}.page-content{padding-bottom:50px}.tabs{margin-bottom:24px}.tabs a{font-size:13px;padding:12px}.filters{gap:14px}.list-row,.search-results .list-row{grid-template-columns:1fr 20px;gap:10px;padding:22px 0}.list-row .meta{grid-column:1/-1}.list-row h3{font-size:20px}.list-row p{font-size:14px}.article-layout{display:block;padding-bottom:50px}.article-sidebar{position:static;display:flex;gap:5px 16px;flex-wrap:wrap;margin-bottom:30px;border-bottom:1px solid var(--line);padding-bottom:18px}.article-sidebar strong{width:100%;margin-bottom:0}.article-sidebar a{padding:3px 0;font-size:12px}.article-body h2{font-size:25px;margin-top:32px}.tool-layout{grid-template-columns:1fr;gap:25px}.tool-panel{padding:22px}.tool-result{min-height:250px}.step-grid{grid-template-columns:1fr 1fr}.step:nth-child(3){border-left:0;padding-left:0}.step{padding-right:16px}.step+.step{padding-left:16px}.split-content{grid-template-columns:1fr;gap:24px}.split-content h2{font-size:30px}.empty{padding:30px 20px}.brand-panel{padding:30px 20px;min-height:210px;gap:14px}.brand-panel img{width:55px}.brand-panel span{font-size:43px;letter-spacing:-2px}.brand-swatches{gap:10px}.swatch{padding:20px 14px;font-size:12px}.avatar-grid{grid-template-columns:1fr 1fr;gap:15px}.avatar-grid figure{padding:15px}.avatar-grid img{width:110px}.avatar-grid figcaption{font-size:11px}.footer-top{grid-template-columns:1fr 1fr;gap:25px}.footer-intro{grid-column:1/-1}.footer-top p{max-width:none}.footer-bottom{display:block;font-size:11px}.footer-bottom span{display:block;margin-bottom:10px}.edition-cover{grid-template-columns:1fr;padding:28px;gap:25px}.edition-cover h2{font-size:43px}.site-map{columns:1}.search-input{font-size:18px}.notice{font-size:13px}.backlinks{gap:18px}}