:root{--canvas:#f7f6f2;--paper:#fff;--ink:#292c29;--muted:#6e7369;--line:#eaeaea;--green:#314b3e;--pale:#e8eee7;--mono:ui-monospace,"SFMono-Regular",Consolas,monospace;--serif:"Iowan Old Style","Palatino Linotype",Georgia,"Songti SC","STSong",serif;--sans:-apple-system,BlinkMacSystemFont,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--canvas);color:var(--ink);font:14px/1.65 var(--sans);-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button:disabled{cursor:default;opacity:.35}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--green);outline-offset:4px}button:active{transform:translateY(1px)}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:16px;top:-80px;background:var(--ink);color:white;padding:10px 18px;z-index:20}.skip-link:focus{top:16px}
.site-header{max-width:1440px;margin:auto;height:92px;padding:0 48px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dedfd7}.brand{display:flex;align-items:center;gap:13px;font-size:19px;font-weight:600;letter-spacing:.04em}.brand img{border-radius:5px}.brand-note{display:block;font:9px/1.6 var(--mono);letter-spacing:.13em;color:var(--muted);margin-top:1px}.header-nav{display:flex;align-items:center;gap:29px;font-size:12px}.saved-button{border:0;background:transparent;display:flex;align-items:center;gap:7px;padding:8px 0}.saved-button span{font:11px var(--mono);color:var(--muted)}.saved-button[aria-pressed=true]{color:var(--green);font-weight:600}.saved-button[aria-pressed=true] svg{fill:var(--pale)}.source-link{color:var(--muted)}.source-link span{font-size:16px;margin-left:4px}.workspace{max-width:1440px;margin:auto;display:grid;grid-template-columns:225px minmax(0,1fr);gap:50px;padding:0 48px}.sidebar{padding-top:53px;align-self:start;position:sticky;top:0;min-height:660px;display:flex;flex-direction:column}.shelf-label{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;letter-spacing:.1em;padding:0 14px 18px}.shelf-label span:last-child{font:10px var(--mono);letter-spacing:.13em}.category-list{display:flex;flex-direction:column;gap:5px}.category-button{width:100%;min-height:48px;border:1px solid transparent;border-radius:5px;background:transparent;display:flex;align-items:center;gap:11px;padding:10px 13px;text-align:left;font-size:13px}.category-button:hover{background:#efeee8}.category-button[aria-pressed=true]{background:var(--pale);color:#294335}.category-number{font:10px var(--mono);opacity:.55;min-width:16px}.category-name{flex:1}.category-count{font:11px var(--mono);color:var(--muted)}.category-button:first-child{margin-bottom:11px;padding-bottom:13px;border-bottom-color:#dedfd7;border-radius:0}.category-button:first-child[aria-pressed=true]{border:1px solid transparent;border-radius:5px}.sidebar-bottom{padding:91px 14px 0;color:var(--muted)}.sidebar-bottom p{font:15px var(--serif);letter-spacing:.06em;margin:20px 0 8px}.sidebar-bottom>span{font:10px var(--mono)}.shelf-drawing{width:102px;display:flex;align-items:flex-end;gap:4px;border-bottom:1px solid #b8bcb1;height:48px;padding:0 7px 3px}.shelf-drawing i{width:10px;height:34px;border:1px solid #b8bcb1;position:relative}.shelf-drawing i:after{content:"";position:absolute;left:2px;right:2px;height:1px;background:#b8bcb1;top:6px}.shelf-drawing i:nth-child(2){height:40px;width:13px}.shelf-drawing i:nth-child(3){height:29px}.shelf-drawing i:nth-child(4){height:36px;transform:rotate(-12deg);margin-left:4px}.shelf-drawing i:nth-child(5){height:32px;width:13px;margin-left:3px}.shelf-drawing i:nth-child(6){height:40px}
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