:root{color-scheme:dark;--bg:#0d1017;--paper:#131720;--panel:#141923;--ink:#e8ebf2;--muted:#8c94a6;--faint:#626d81;--line:#ffffff0e;--accent:#8eabff;--soft:#ffffff05;--soft2:#222c43;--blue:#779dff;--green:#80bba7;--orange:#d6ac7c;--purple:#b9a1df}
:root[data-theme=light]{color-scheme:light;--bg:#f6f7fa;--paper:#fff;--panel:#fff;--ink:#252e40;--muted:#788195;--faint:#8e96a5;--line:#20324e13;--accent:#466ac1;--soft:#20324e04;--soft2:#e8edf9;--blue:#466ac1;--green:#4b8b73;--orange:#a8783f;--purple:#8d68b7}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button:disabled{opacity:.55;cursor:wait}[hidden]{display:none!important}::selection{background:var(--soft2)}svg{height:20px;width:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.icon-defs{position:absolute;width:0;height:0;overflow:hidden}.radar-skip{position:fixed;left:12px;top:-70px;z-index:50;background:var(--accent);color:var(--bg);padding:10px 16px;border-radius:6px}.radar-skip:focus{top:12px}
.radar-sidebar{position:fixed;inset:0 auto 0 0;width:220px;border-right:1px solid var(--line);padding:31px 21px 24px;display:flex;flex-direction:column;background:var(--bg);z-index:5}.radar-brand{display:flex;align-items:center;gap:12px;padding:0 10px;margin-bottom:43px}.radar-brand img{border-radius:50%;border:1px solid var(--line)}.radar-brand strong{font-size:20px;font-weight:600;line-height:1.1;letter-spacing:.02em}.brand-period{color:var(--accent);margin-left:3px}.radar-brand small{display:block;font-size:10px;color:var(--muted);margin-top:3px;letter-spacing:.13em}.sidebar-label{font-size:10px;color:var(--faint);margin:0 12px 13px;letter-spacing:.08em}.radar-nav{display:flex;flex-direction:column;gap:7px}.radar-nav a{display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;border-radius:7px;font-size:12px;color:var(--muted);transition:color .15s,background .15s}.radar-nav a svg{height:17px;width:17px}.radar-nav a:hover{background:var(--soft);color:var(--ink)}.radar-nav a[aria-current=page]{background:var(--soft2);color:var(--accent)}.nav-count{margin-left:auto;font:10px ui-monospace,Consolas,monospace;color:var(--faint)}.nav-dot{width:5px;height:5px;border-radius:50%;background:var(--accent);margin-left:auto}.sidebar-topics{border-top:1px solid var(--line);padding-top:25px;margin-top:27px}.sidebar-topics>span{display:flex;gap:10px;align-items:center;font-size:11px;color:var(--muted);padding:8px 12px}.sidebar-topics i{width:5px;height:5px;border-radius:50%;background:var(--blue)}.sidebar-topics .topic-learning{background:var(--purple)}.sidebar-topics .topic-vision{background:var(--green)}.sidebar-topics .topic-tools{background:var(--orange)}.sidebar-bottom{margin-top:auto;padding-top:30px}.issue-stamp{border:1px solid var(--line);border-radius:8px;padding:13px 12px;display:flex;align-items:center;gap:10px;background:var(--soft)}.issue-stamp svg{color:var(--accent);width:18px;height:18px}.issue-stamp>span{font-size:9px;color:var(--muted);line-height:1.8}.issue-stamp strong{display:block;color:var(--ink);font-size:11px;font-weight:400}.issue-stamp .stamp-arrow{margin-left:auto;font-size:17px}.home-link{display:block;margin-top:20px;padding:0 12px;font-size:10px;color:var(--muted)}.home-link:hover{color:var(--accent)}
.radar-shell{margin-left:220px}.radar-topbar{height:76px;border-bottom:1px solid var(--line);padding:0 42px;display:flex;align-items:center;justify-content:space-between;gap:20px}.breadcrumb{display:flex;align-items:center;gap:13px;font-size:10px;color:var(--faint)}.breadcrumb>span{opacity:.5}.breadcrumb strong{font-weight:400;color:var(--muted)}.top-actions{display:flex;align-items:center;gap:19px}.snapshot-date{font:10px ui-monospace,Consolas,monospace;color:var(--faint)}.radar-theme{height:32px;width:32px;padding:0;border:1px solid var(--line);border-radius:50%;background:var(--soft);font-size:21px;color:var(--muted)}.radar-main{max-width:1350px;margin:auto;padding:43px 42px 0}.radar-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:35px;gap:25px}.heading-note{font-size:10px;letter-spacing:.03em;color:var(--muted);margin:0 0 13px;display:flex;gap:7px;align-items:center}.heading-note>span{width:4px;height:4px;background:var(--accent);border-radius:50%}.radar-heading h1{font-size:clamp(25px,2.8vw,36px);line-height:1.5;font-weight:550;letter-spacing:-.035em;margin:0 0 8px}.radar-heading h1>span{color:var(--accent)}.heading-description{font-size:12px;color:var(--muted);margin:0}.edition-mark{display:flex;align-items:center;gap:8px;color:var(--faint);font-size:9px;opacity:.7;flex-shrink:0}.edition-mark strong{font:52px/1 Georgia,serif;font-style:italic;color:var(--muted);opacity:.3;letter-spacing:-.04em}
.radar-layout{display:grid;grid-template-columns:minmax(0,1fr) 274px;gap:30px;align-items:start}.reading-column{min-width:0}.featured-story{position:relative;overflow:hidden;border:1px solid color-mix(in srgb,var(--accent) 20%,transparent);border-radius:11px;padding:27px 28px 23px;background:linear-gradient(120deg,color-mix(in srgb,var(--soft2) 65%,var(--paper)),var(--paper));margin-bottom:32px}.featured-story::after{content:"";position:absolute;width:170px;height:170px;border-radius:50%;border:1px solid color-mix(in srgb,var(--accent) 9%,transparent);right:-85px;top:-74px;box-shadow:0 0 0 25px color-mix(in srgb,var(--accent) 3%,transparent),0 0 0 50px color-mix(in srgb,var(--accent) 2%,transparent);pointer-events:none}.featured-kicker{display:flex;align-items:center;gap:7px;font-size:10px;color:var(--accent);margin-bottom:15px}.featured-kicker svg{height:14px;width:14px}.featured-story h2{font-size:23px;line-height:1.55;font-weight:500;letter-spacing:-.025em;margin:0 0 13px;max-width:94%}.featured-story>p{font-size:13px;line-height:1.95;color:var(--muted);margin:0 0 21px;max-width:98%}.feature-foot{display:flex;align-items:center;justify-content:space-between;gap:15px;border-top:1px solid var(--line);padding-top:16px}.feature-foot>span{font-size:10px;color:var(--faint)}.feature-foot a{font-size:11px;color:var(--accent)}.feature-foot .save-button{margin-left:auto}
.feed-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:17px}.feed-label{display:flex;gap:10px;align-items:center}.feed-label h2{font-size:15px;font-weight:500;margin:0}.feed-label>span{font:10px ui-monospace,Consolas,monospace;color:var(--faint)}.unread-control{display:flex;align-items:center;gap:6px;font-size:10px;color:var(--muted);cursor:pointer}.unread-control input{accent-color:var(--accent);height:12px;width:12px}.search-box{display:flex;align-items:center;gap:10px;padding:11px 13px;background:var(--paper);border:1px solid var(--line);border-radius:7px}.search-box svg{height:16px;width:16px;color:var(--faint)}.search-box input{background:transparent;border:0;outline:none;color:var(--ink);width:100%;min-width:0;font-size:11px}.search-box input::placeholder{color:var(--faint)}.search-box:focus-within{border-color:color-mix(in srgb,var(--accent) 60%,transparent)}.search-box>span{font-size:16px;color:var(--faint)}.topic-filters{display:flex;gap:7px;padding:17px 0 19px;flex-wrap:wrap}.topic-filters button{font-size:10px;line-height:1.5;padding:6px 11px;border-radius:6px;background:transparent;border:1px solid transparent;color:var(--muted)}.topic-filters button[aria-pressed=true]{background:var(--soft2);color:var(--accent);border-color:color-mix(in srgb,var(--accent) 12%,transparent)}.topic-filters button:hover{color:var(--ink)}
.radar-feed{display:flex;flex-direction:column;gap:12px}.story-card{padding:21px 23px 18px;background:var(--paper);border:1px solid var(--line);border-radius:9px;min-width:0;transition:border-color .15s}.story-card:hover{border-color:color-mix(in srgb,var(--accent) 22%,transparent)}.story-meta{display:flex;align-items:center;gap:8px;font-size:9px;color:var(--faint);margin-bottom:10px;min-width:0;flex-wrap:wrap}.source-mark{height:18px;width:18px;display:grid;place-items:center;border-radius:5px;background:var(--soft2);font:9px Georgia,serif;color:var(--accent)}.story-meta .category-label{margin-left:auto;color:var(--muted);font-size:9px}.story-card h3{font-size:16px;line-height:1.65;letter-spacing:-.01em;font-weight:500;margin:0 0 10px;overflow-wrap:anywhere}.story-card h3 a:hover{color:var(--accent)}.story-summary{font-size:13px;line-height:1.95;color:var(--muted);margin:0 0 14px}.story-bottom{display:flex;align-items:center;gap:13px;font-size:10px;color:var(--faint)}.story-bottom>a{font-size:10px;color:var(--muted)}.story-bottom>a:hover{color:var(--accent)}.read-button{background:transparent;border:0;padding:3px 0;font-size:9px;color:var(--faint);display:flex;gap:4px;align-items:center}.read-button svg{height:11px;width:11px}.save-button{display:grid;place-items:center;height:28px;width:28px;background:transparent;border:0;border-radius:5px;color:var(--faint);margin-left:auto}.save-button svg{height:15px;width:15px}.save-button:hover{background:var(--soft2);color:var(--accent)}.save-button[aria-pressed=true]{color:var(--accent)}.save-button[aria-pressed=true] svg{fill:color-mix(in srgb,var(--accent) 16%,transparent)}.story-card.is-read h3{color:var(--muted)}.practice-tip{margin-top:16px;border-top:1px solid var(--line);padding-top:11px}.practice-tip summary{font-size:10px;color:var(--accent);cursor:pointer;width:fit-content}.practice-tip p{margin:10px 0 0;font-size:12px;color:var(--muted);line-height:1.95}.feed-end{display:flex;align-items:center;justify-content:center;gap:12px;padding:25px 10px 0;font-size:10px;color:var(--faint)}.feed-end span{font-size:17px;color:var(--accent);opacity:.6}.feed-loading,.feed-empty{padding:42px 22px;text-align:center;font-size:12px;color:var(--muted);border:1px dashed var(--line);border-radius:9px}.feed-empty h3{font-weight:400;font-size:15px;color:var(--ink);margin:0 0 10px}.feed-empty p{font-size:11px;margin:0}.reset-filters,.retry-load{margin-top:18px;border:1px solid var(--line);background:var(--soft2);border-radius:5px;padding:7px 13px;font-size:11px;color:var(--accent)}
.radar-rail{display:flex;flex-direction:column;gap:28px;position:sticky;top:24px;min-width:0}.weekly-preview{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:21px 21px 0;overflow:hidden}.rail-heading{display:flex;align-items:center;gap:8px;font-size:10px;color:var(--muted);margin-bottom:21px}.rail-icon{display:grid;place-items:center;height:26px;width:26px;border:1px solid var(--line);border-radius:7px;color:var(--accent)}.rail-icon svg{width:14px;height:14px}.small-issue{margin-left:auto;font:10px ui-monospace,Consolas,monospace;color:var(--faint)}.weekly-preview h2{font-size:20px;line-height:1.6;font-weight:500;letter-spacing:-.025em;margin:0 0 9px}.weekly-preview>p{font-size:10px;line-height:1.8;color:var(--muted);margin:0 0 17px}.weekly-preview ol{padding:0;margin:0;list-style:none}.weekly-preview li{display:flex;align-items:flex-start;gap:10px;padding:12px 0;border-top:1px solid var(--line)}.mini-rank{font:10px/1.8 ui-monospace,Consolas,monospace;color:var(--faint)}.mini-repo{display:flex;flex-direction:column;min-width:0;flex:1}.mini-repo a{font-size:11px;overflow-wrap:anywhere}.mini-repo a:hover{color:var(--accent)}.mini-repo>span{font-size:9px;color:var(--faint);margin-top:3px}.mini-star{font:9px/2 ui-monospace,Consolas,monospace;color:var(--orange);white-space:nowrap}.read-issue{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin:6px -21px 0;padding:14px 21px;color:var(--accent);font-size:10px;background:var(--soft)}.read-issue:hover{background:var(--soft2)}.rail-section-title{display:flex;align-items:center;justify-content:space-between}.rail-section-title h2{font-size:13px;font-weight:500;margin:0}.rail-section-title>span{color:var(--faint)}.rail-description{font-size:10px;color:var(--muted);margin:7px 0 18px}.practice-link{display:block;border-left:1px solid var(--line);padding:0 0 18px 15px;position:relative}.practice-link::before{content:"";position:absolute;height:5px;width:5px;border-radius:50%;background:var(--accent);left:-3px;top:7px}.practice-link:last-child{padding-bottom:0}.practice-link strong{font-size:11px;line-height:1.8;font-weight:400;display:block}.practice-link p{font-size:10px;line-height:1.9;color:var(--muted);margin:5px 0 5px}.practice-link>span{font-size:9px;color:var(--faint);overflow-wrap:anywhere}.practice-link:hover strong{color:var(--accent)}.edition-info{border-top:1px solid var(--line);padding-top:17px}.edition-info summary{font-size:10px;color:var(--muted);cursor:pointer;list-style:none;display:flex;justify-content:space-between}.edition-info details p{font-size:10px;color:var(--faint);line-height:1.9;margin:12px 0}.copy-issue{border:0;background:transparent;color:var(--faint);font-size:10px;padding:0;margin-top:16px}.copy-issue:hover{color:var(--accent)}
.github-intro{border:1px solid var(--line);border-radius:10px;padding:25px;background:var(--paper);margin-bottom:28px;display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center}.issue-pill{font-size:9px;letter-spacing:.02em;color:var(--accent)}.github-intro h2{font-size:20px;line-height:1.6;font-weight:500;letter-spacing:-.02em;margin:11px 0 7px}.github-intro>div>p{font:10px ui-monospace,Consolas,monospace;color:var(--muted);margin:0}.download-issue{font-size:10px;line-height:1.8;color:var(--accent);border:1px solid var(--line);background:var(--soft2);padding:9px 12px;border-radius:6px}.ranking-note{grid-column:1/-1;border-top:1px solid var(--line);padding-top:14px;font-size:10px;line-height:1.9;color:var(--muted);margin:0}.repo-title-row{display:flex;align-items:flex-start;gap:12px}.repo-rank{font:18px/1.8 Georgia,serif;color:var(--faint);opacity:.7}.repo-title-row h3{flex:1;margin:0 0 8px;min-width:0;font-size:15px}.repo-star{font:11px/2.5 ui-monospace,Consolas,monospace;color:var(--orange);white-space:nowrap}.repo-card .story-meta{margin:0 0 12px 31px}.language-dot{width:5px;height:5px;background:var(--blue);border-radius:50%}.repo-card .story-summary{margin-top:2px}.repo-card .story-bottom{border-top:1px solid var(--line);padding-top:12px}.repo-tag{font-size:9px;color:var(--muted)}.repo-card .practice-tip{border:0;padding:0;margin-top:13px}.radar-footer{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding:23px 0 30px;margin-top:50px;color:var(--faint);font-size:9px}.radar-footer a:hover{color:var(--accent)}.radar-toast{position:fixed;left:calc(50% + 110px);bottom:27px;transform:translateX(-50%);padding:10px 17px;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:7px;font-size:11px;z-index:30;box-shadow:0 8px 30px #0003;max-width:calc(100vw - 40px)}.noscript-message{margin:30px 40px 30px 260px}.noscript-message a{color:var(--accent)}
@media(min-width:1550px){.radar-main{padding-top:52px}.radar-layout{grid-template-columns:minmax(0,1fr) 310px;gap:36px}.radar-sidebar{width:240px;padding-inline:25px}.radar-shell{margin-left:240px}.radar-main{padding-inline:55px}.radar-topbar{padding-inline:55px}.story-card{padding:25px 28px}.featured-story{padding:32px}.featured-story h2{font-size:26px}}
@media(max-width:1120px){.radar-sidebar{width:190px;padding-inline:14px}.radar-shell{margin-left:190px}.radar-topbar{padding-inline:28px}.radar-main{padding:33px 28px 0}.radar-layout{grid-template-columns:minmax(0,1fr) 230px;gap:22px}.weekly-preview{padding:18px 16px 0}.read-issue{margin-inline:-16px;padding-inline:16px}.featured-story{padding:23px}.featured-story h2{font-size:21px}.story-card{padding:19px}.edition-mark{display:none}}
@media(max-width:950px){.radar-layout{grid-template-columns:minmax(0,1fr)}.radar-rail{position:static;display:grid;grid-template-columns:1fr 1fr;gap:25px;margin-top:9px}.edition-info{grid-column:1/-1}.radar-heading h1{font-size:29px}.radar-toast{left:calc(50% + 95px)}.snapshot-date{font-size:9px}}
@media(max-width:680px){.radar-sidebar{position:static;width:100%;height:auto;padding:18px 20px 0;border-right:0;border-bottom:1px solid var(--line)}.radar-brand{padding:0;gap:10px;margin-bottom:20px}.radar-brand img{width:34px;height:34px}.radar-brand strong{font-size:18px}.radar-brand small{display:inline;margin-left:10px;font-size:10px}.radar-sidebar>.sidebar-label,.sidebar-topics,.sidebar-bottom{display:none}.radar-nav{display:flex;flex-direction:row;gap:6px;overflow:auto;margin-inline:-5px;padding-bottom:13px}.radar-nav a{flex:1;justify-content:center;gap:7px;white-space:nowrap;padding:0 9px;height:38px;font-size:11px}.radar-nav a svg{height:14px;width:14px}.nav-count,.nav-dot{display:none}.radar-shell{margin-left:0}.radar-topbar{height:48px;padding:0 20px;gap:10px}.breadcrumb{font-size:9px;gap:8px}.top-actions{gap:10px}.snapshot-date{font-size:8px}.radar-theme{height:27px;width:27px;font-size:18px}.radar-main{padding:28px 20px 0}.radar-heading{margin-bottom:26px}.heading-note{font-size:9px;margin-bottom:10px}.radar-heading h1{font-size:26px;line-height:1.5}.heading-description{font-size:11px}.featured-story{padding:23px 21px 20px;margin-bottom:27px}.featured-story h2{font-size:21px;max-width:100%;line-height:1.65}.featured-story>p{font-size:11px}.featured-kicker{font-size:9px;margin-bottom:12px}.feature-foot{gap:10px}.feature-foot>span{font-size:9px}.feature-foot a{font-size:10px}.feature-foot .save-button{height:24px;width:24px}.feed-label h2{font-size:14px}.unread-control{font-size:9px}.story-card{padding:19px 18px 17px}.story-card h3{font-size:16px}.story-summary{font-size:12px}.story-meta{font-size:8px}.story-meta .category-label{font-size:8px}.topic-filters{gap:4px}.topic-filters button{font-size:9px;padding:6px 9px}.radar-rail{grid-template-columns:1fr;gap:27px;margin-top:12px}.weekly-preview{padding:21px 22px 0}.read-issue{margin-inline:-22px;padding-inline:22px}.weekly-preview h2 br{display:none}.weekly-preview h2{font-size:20px}.practice-panel{padding:0 4px}.practice-link strong{font-size:12px}.practice-link p{font-size:11px}.github-intro{padding:22px;grid-template-columns:1fr;gap:17px}.github-intro h2{font-size:20px}.download-issue{width:fit-content}.repo-title-row{gap:9px}.repo-title-row h3{font-size:14px}.repo-rank{font-size:16px}.repo-star{font-size:10px}.repo-card .story-meta{margin-left:26px}.radar-footer{font-size:8px;flex-wrap:wrap;margin-top:37px;padding-bottom:85px}.radar-footer>span:nth-child(2){display:none}.radar-toast{left:50%;bottom:77px;font-size:10px;width:max-content}.noscript-message{margin:30px 20px}.feed-end{font-size:9px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}