:root{--brown:#89644b;--ink:#49392f;--muted:#927f6e;--sand:#e7d8c4;--line:#e5d8c7;--bg:#faf5ec;--soft:#f1e7d9;--white:#fffdf9}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.75 -apple-system,BlinkMacSystemFont,'Microsoft YaHei',sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a{cursor:pointer}button{color:inherit}h1,h2,h3,p{margin:0 0 14px}h1{font-size:34px;line-height:1.5}h2{font-size:25px}h3{font-size:18px}.wrap{max-width:1240px;padding:0 28px;margin:auto}.header{background:#fffdf9;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.header .wrap{display:flex;align-items:center;gap:28px;height:79px}.brand{font-weight:700;font-size:23px;white-space:nowrap}.brand span{color:var(--brown);font-size:28px;margin-right:10px}.header 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@media(max-width:1000px){.header nav{gap:15px}.grid.four{grid-template-columns:repeat(2,1fr)}.hero h1{font-size:36px}.layout{grid-template-columns:180px 1fr}.workspace{padding:25px 20px}.filters{grid-template-columns:repeat(3,1fr)}.grid.three{grid-template-columns:repeat(2,1fr)}}@media(max-width:650px){.wrap{padding:0 18px}.header .wrap{height:68px;gap:10px;justify-content:space-between}.brand{font-size:19px}.brand span{font-size:22px;margin-right:5px}.header nav{gap:12px;font-size:12px}.header nav a:nth-child(-n+2){display:none}.header .btn{font-size:11px;padding:7px 10px}.hero{grid-template-columns:1fr;gap:25px;padding:30px 0}.hero h1{font-size:32px}.hero-art{padding:22px}.arch{height:160px;font-size:23px}.section{padding:27px 0}.grid.two,.grid.three{grid-template-columns:1fr}.grid.four{gap:12px}.card{padding:20px}.section-head h2{font-size:23px}.section-head{gap:12px}.footer .wrap{display:block}.footer{margin-bottom:54px}.side{padding:12px 15px;min-width:0;border-bottom:1px solid var(--line);border-right:0}.side b{margin:0 8px 10px}.side nav{display:flex;overflow:auto;gap:4px}.side a{white-space:nowrap;padding:8px 12px;margin:0;font-size:12px}.layout{display:block}.workspace{padding:22px 17px}.page-head h1{font-size:26px}.filters{grid-template-columns:1fr 1fr}.filters label{font-size:11px}.install,.login{margin:20px 15px}.quiz{margin:20px auto}.question{font-size:23px}.option{padding:13px;font-size:17px}.quiz .actions .btn{padding:11px 20px}.stats strong{font-size:25px}.stats .card{padding:16px}.profile-role{display:none}.template-2 .hero{grid-template-columns:1fr}.mobilebar{display:flex;justify-content:space-around;position:fixed;bottom:0;left:0;right:0;background:#f0e1cd;border-top:1px solid var(--line);padding:10px;z-index:9;font-size:12px}.actions{gap:9px}.subnav{gap:5px}.subnav a{padding:6px 10px;font-size:11px}.sticky-actions{bottom:43px}.quiz .sticky-actions{bottom:0}.quiz .btn{font-size:14px}}