:root{--ink:#1d302b;--muted:#63726c;--paper:#f7f8f4;--line:#dce3da;--orange:#e76e38;--green:#223e33}*{box-sizing:border-box}html{scroll-padding-top:110px;scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font:15px/1.75 "Microsoft YaHei","PingFang SC",sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:hover{color:#a54321}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #bd562b;outline-offset:4px}h1,h2,h3,p{margin:0}button{color:inherit}.wrap{width:min(1200px,calc(100% - 80px));margin:auto}.preview-note{text-align:center;padding:5px 12px;background:#e9eee5;color:#52604f;font-size:11px;letter-spacing:1px}.skip{position:fixed;top:-100px;left:20px;z-index:50;background:#fff;padding:15px}.skip:focus{top:10px}header{position:sticky;top:0;background:#ffffffed;border-bottom:1px solid var(--line);z-index:10;backdrop-filter:blur(16px)}.head{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:18px}.brand img{width:108px;height:54px;object-fit:contain}.brand>span{border-left:1px solid var(--line);padding-left:18px;font-size:11px;letter-spacing:2px;font-weight:600}.brand span span{display:block;font-size:10px;font-weight:400;letter-spacing:1px;color:var(--muted);margin-top:4px}nav{display:flex;gap:28px;font-size:13px}#menu{display:none}.hero{background:linear-gradient(120deg,#edf2e7,#f6f7ef 55%,#e4ecdf);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1fr 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#edf0e9;padding-top:12px}.resource-footnote{font-size:10px;line-height:1.9;color:#75806f;padding-top:23px}#empty{text-align:center;border:1px dashed #bac8b2;border-radius:8px;padding:50px 20px;background:#fff}#empty p{color:var(--muted);font-size:12px;margin:12px 0 24px}.guide-section{padding:65px 0;background:#edf1e8;border-block:1px solid var(--line)}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:38px}.guide-grid article{border-top:1px solid #c6d2bf;padding-top:23px}.guide-grid article>span{font-size:10px;color:#816749;letter-spacing:1px}.guide-grid h3{margin:15px 0 11px}.guide-grid p{font-size:12px;color:var(--muted)}.guide-grid .text-link{display:inline-block;margin-top:18px}.support{padding:54px 0;background:#fff}.support-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.support h2{font-size:25px;margin:10px 0}.support p{font-size:12px;color:var(--muted)}footer{padding:38px 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/* Existing official brand pixels; contain preserves the complete transparent artwork. */
.brand img{width:132px;height:auto;aspect-ratio:1512/1040;object-fit:contain;display:block}
.head{min-height:98px}.footer-brand{display:inline-flex;align-items:center}.footer-brand img{width:160px;height:auto;aspect-ratio:1512/1040;object-fit:contain;display:block}
@media(max-width:740px){.brand img{width:108px;height:auto}.head{min-height:82px}.footer-brand img{width:140px}}