*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:#f7f8f4;color:#19271f;font:15px/1.6 "Segoe UI",Arial,"Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #479762;outline-offset:4px}button{color:inherit}header,main,footer{max-width:1440px;margin:auto}.header{height:92px;display:flex;align-items:center;justify-content:space-between;padding:0 64px;border-bottom:1px solid #dce2d9}.brand{font-size:29px;font-weight:750;letter-spacing:-1.5px;display:flex;align-items:center;gap:10px}.brand span{font-size:10px;font-weight:500;color:#67756b;letter-spacing:1.4px;margin-left:9px}nav{display:flex;gap:33px;font-size:13px}nav a:hover,.text-link:hover{color:#398244}.language{border:1px solid #d5ddd2;background:transparent;padding:7px 14px;border-radius:5px;font-size:12px;min-width:75px}.language span{margin-left:12px}main{padding:0 64px}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;padding:58px 0 68px;align-items:stretch}.eyebrow{font-size:10px;letter-spacing:1.9px;font-weight:650;color:#667c6b;margin:0 0 23px}.hero .eyebrow{display:flex;align-items:center;gap:9px}.dot{width:6px;height:6px;border-radius:100%;background:#679442}h1{font-size:clamp(48px,5.2vw,74px);font-weight:500;letter-spacing:-3.7px;line-height:1.08;margin:30px 0 25px}.intro{font-size:16px;max-width:405px;color:#68746b;line-height:1.8}.hero-actions{display:flex;gap:28px;align-items:center;margin-top:30px}.button{display:inline-flex;gap:35px;padding:13px 18px;font-size:13px;font-weight:600;border-radius:4px}.primary{background:#233c2b;color:#edfae7}.primary:hover{background:#365d42}.text-link{font-size:12px;font-weight:600}.hero-bottom{margin-top:54px;display:flex;gap:24px;flex-wrap:wrap;font-size:9px;letter-spacing:1px;color:#7d897e}.hero-bottom span+span{letter-spacing:0}.visual{background:#0e1b17;border-radius:6px;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;color:#96b19d;align-self:center;width:100%;transform:rotate(1deg)}.visual-top,.visual-bottom{display:flex;justify-content:space-between;align-items:center;padding:17px 23px;font-size:9px;letter-spacing:1.8px}.visual-top{border-bottom:1px solid #24392c}.visual-bottom{border-top:1px solid #24392c;font-size:11px;letter-spacing:0}.visual img{width:100%;height:auto;display:block;max-height:350px;object-fit:contain}.section{padding:50px 0;border-top:1px solid #dce2d9;scroll-margin-top:20px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}.section-heading .eyebrow{margin-bottom:12px}h2{font-size:30px;line-height:1.23;font-weight:500;letter-spacing:-1px;margin:0}h3{font-weight:600;line-height:1.4}.subtle,.external-note{font-size:11px;color:#6a7b6c}.subtle:hover{text-decoration:underline}.toolbar{display:flex;justify-content:space-between;margin:32px 0 18px;gap:20px}.filters{display:flex;gap:6px;flex-wrap:wrap}.filters button{background:transparent;border:1px solid transparent;padding:6px 13px;border-radius:4px;font-size:11px;color:#6b786c}.filters button.active{background:#e6eddf;border-color:#d6dfcf;color:#233b28}.search{display:flex;gap:10px;border-bottom:1px solid #ccd7c9;align-items:center}.search span{font-size:22px}.search input{border:0;background:transparent;font-size:11px;width:170px;padding:6px 0;outline-offset:1px}.catalog{border-top:1px solid #dce2d9}.resource{display:grid;grid-template-columns:48px minmax(200px,1fr) 130px 110px;align-items:center;gap:20px;padding:23px 6px;border-bottom:1px solid #dce2d9}.file-icon{border-radius:10px;width:42px;height:46px;background:#e9eee4;color:#637960;display:flex;justify-content:center;align-items:center;font:12px monospace}.resource h3{font-size:14px;margin:0 0 4px}.resource p{font-size:11px;color:#798276;margin:0}.metadata{font-size:10px;color:#6e7f70}.metadata strong{display:block;font-weight:500;color:#334b38;font-size:11px}.download{font-size:11px;display:flex;justify-content:space-between;gap:10px;border:1px solid #cdd8c7;border-radius:4px;padding:8px 12px}.download:hover{background:#e8efdf}.hash{font-size:9px;color:#82917e;display:block;margin-top:4px}.catalog-note{font-size:10px;color:#7d897c;margin:16px 0 0}.guide{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding-top:60px;padding-bottom:60px}.guide-copy h2{font-size:33px}.guide ol{list-style:none;counter-reset:step;padding:0;margin:30px 0 24px}.guide li{counter-increment:step;display:flex;gap:15px;margin:0 0 22px}.guide li:before{content:'0' counter(step);font:10px monospace;color:#83917f;padding-top:4px}.guide li h3{font-size:12px;margin:0 0 4px}.guide li p{font-size:12px;color:#7a8578;margin:0;max-width:340px}.code-panel{background:#15221c;color:#c5d2c1;border:1px solid #24392b;border-radius:6px;align-self:center;overflow:hidden}.code-heading{display:flex;justify-content:space-between;padding:15px 22px;border-bottom:1px solid #2b3a2e;font:9px monospace;align-items:center;letter-spacing:1px}.code-heading button{color:#9fad99;font-size:10px;background:none;border:1px solid #3b4d3d;padding:5px 9px;border-radius:3px;letter-spacing:0}.code-panel pre{font:11px/2 monospace;padding:24px 22px;margin:0;overflow:auto}.comment{color:#748971}.purple{color:#c7b4df}.green{color:#c1e5a8}.code-note{display:flex;gap:10px;margin:6px 22px 23px;padding:14px 0;border-top:1px solid #2c3c30;font-size:10px;color:#8da186}.code-note p{margin:0}.note-icon{border:1px solid #69815d;width:15px;height:15px;line-height:14px;text-align:center;border-radius:100%;flex-shrink:0}.code-footer{background:#1e2d23;display:flex;justify-content:space-between;padding:13px 22px;font:9px monospace}.code-footer a{color:#c1e5a8}#copy-status{font-size:10px;margin:0;padding:0 22px;min-height:0}#copy-status:not(:empty){padding:10px 22px}.references{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.references>a{border:1px solid #d9e1d4;border-radius:5px;padding:25px;transition:transform .2s,background .2s}.references>a:hover{background:#eef2e8;transform:translateY(-3px)}.ref-top{display:flex;justify-content:space-between;color:#687f62}.ref-icon{font:18px monospace}.references h3{font-size:21px;margin:25px 0 10px;letter-spacing:-.5px}.references p{font-size:12px;color:#768170;min-height:48px;margin:0 0 25px}.ref-label{font-size:10px;color:#66805c}.sources{margin:20px 0 60px;background:#e9eee3;border-radius:5px;padding:30px;display:grid;grid-template-columns:1fr 1.45fr .55fr;gap:30px;align-items:center}.sources .eyebrow{font-size:8px;letter-spacing:1px}.sources h3{font-size:17px;margin:10px 0 0}.sources p{font-size:10px;color:#72806b;margin:0}.sources>a{font-size:10px;white-space:nowrap}footer{border-top:1px solid #dce2d9;padding:30px 64px 40px;display:flex;align-items:center;gap:30px;font-size:10px;color:#7c8777}.footer-brand{font-size:28px;font-weight:750;letter-spacing:-1.5px;color:#2b402b}.footer-brand span{font-size:9px;vertical-align:top;margin-left:3px}footer>div{margin-left:auto;display:flex;gap:24px}[hidden]{display:none!important}html[lang="zh-CN"] h1{font-size:58px;letter-spacing:-1px;line-height:1.3}html[lang="zh-CN"] .eyebrow{letter-spacing:1px}@media(min-width:1600px){.hero{padding-top:75px;padding-bottom:80px}}@media(max-width:1000px){.header{padding:0 30px}main{padding:0 30px}.brand span{display:none}.hero{gap:35px}h1{font-size:54px}.guide{gap:35px}.resource{grid-template-columns:40px 1fr 90px 95px;gap:12px}.sources{grid-template-columns:1fr 2fr}.sources>a{grid-column:2}footer{padding:25px 30px}}@media(max-width:700px){.header{height:74px;padding:0 22px}nav{gap:17px;font-size:10px}.brand{font-size:24px}.brand img{width:24px;height:24px}.language{font-size:10px;padding:5px 8px;min-width:60px}.language span{margin-left:3px}main{padding:0 22px}.hero{grid-template-columns:1fr;padding:36px 0 40px;gap:30px}h1{font-size:56px;margin-top:20px}.hero-bottom{margin-top:30px}.visual{transform:none}.visual img{max-height:290px}.section{padding:35px 0}.section-heading{align-items:start}.section-heading h2{font-size:25px}.toolbar{flex-wrap:wrap;gap:15px}.search{width:100%}.search input{width:100%}.resource{grid-template-columns:35px 1fr 90px}.metadata{grid-column:2}.download{grid-column:3;grid-row:auto}.resource h3{font-size:13px}.resource p{font-size:10px}.file-icon{width:32px;height:38px;font-size:10px}.guide{grid-template-columns:1fr;gap:30px}.guide-copy h2{font-size:30px}.guide li p{max-width:none}.references{grid-template-columns:1fr}.references>a{padding:22px}.references h3{margin-top:14px}.references p{min-height:0;margin-bottom:18px}.external-note{display:none}.sources{grid-template-columns:1fr;padding:22px;gap:16px;margin-bottom:35px}.sources>a{grid-column:1}footer{padding:22px;flex-wrap:wrap;gap:15px}footer>div{width:100%;margin-left:0;justify-content:space-between}html[lang="zh-CN"] h1{font-size:46px}.hero-actions{gap:20px}}