:root{font-family:"Microsoft YaHei",system-ui,sans-serif;color:#24272c;background:#fff;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #2c6ce6;outline-offset:3px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}.sidebar{position:fixed;inset:0 auto 0 0;width:210px;background:#fafafa;padding:35px 24px;display:flex;flex-direction:column;z-index:10}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;margin:0 10px 42px}.brand b{font-size:22px;line-height:40px;text-align:center;width:40px;border-radius:13px;background:#2457da;color:white}.sidebar nav{display:grid;gap:10px}.nav-item{border:0;background:none;border-radius:28px;padding:14px 14px;display:flex;align-items:center;gap:14px;font-size:15px;text-align:left;white-space:nowrap}.nav-item>span{font-size:23px;line-height:20px;width:21px;font-weight:400}.nav-item.active,.nav-item:hover{background:#ededee}.nav-item.active{font-weight:700}.nav-item small{margin-left:auto;color:#777}.side-bottom{margin-top:auto;padding:28px 12px 0;font-size:12px;color:#86888c}.side-bottom>a{font-size:13px;color:#4b4e54}.side-bottom p{font-size:18px;line-height:1.65;color:#333}.discovery-main{margin-left:210px;padding:34px 32px 30px;max-width:2240px}.discovery-top{display:flex;align-items:center;justify-content:space-between;gap:30px;margin:6px 6px 24px}.eyebrow{font-size:10px;letter-spacing:2.3px;color:#9d7750;font-weight:700}.discovery-top h1{font-size:29px;letter-spacing:-1px;line-height:1.3;margin:8px 0}.discovery-top p{font-size:13px;color:#8a8c91;margin:0}.discovery-top form{display:flex;align-items:center;background:#f5f5f5;border-radius:30px;max-width:530px;width:45%;padding:0 14px 0 23px;height:48px}.discovery-top input{border:0;outline:0;background:none;min-width:0;flex:1;font-size:14px}.discovery-top form button{border:0;background:none;font-size:28px;color:#676b70}.tabs{display:flex;align-items:center;gap:10px;position:sticky;top:0;background:#ffffffed;backdrop-filter:blur(12px);z-index:5;padding:15px 4px 20px;margin-bottom:5px;overflow:auto;white-space:nowrap}.tabs button{border:0;border-radius:22px;background:none;color:#666a70;padding:10px 19px;font-size:15px}.tabs button.selected{background:#f2f2f3;color:#15171b;font-weight:700}.tabs button.selected:after{content:"";height:3px;width:18px;background:#ed5c57;display:block;border-radius:2px;margin:5px auto -8px}.tabs>span{margin-left:auto;font-size:12px;color:#999}.waterfall{columns:5;column-gap:24px}.note-card{break-inside:avoid;margin-bottom:28px;display:inline-block;width:100%}.cover{position:relative;display:block;border-radius:16px;overflow:hidden;background:#f2f2f1;isolation:isolate}.cover img{display:block;width:100%;height:auto;transition:filter .18s,transform .28s}.cover:hover img{filter:brightness(.96);transform:scale(1.012)}.cover-tag{position:absolute;left:12px;top:12px;border-radius:14px;background:#ffffffdb;color:#333;font-size:10px;padding:5px 9px;backdrop-filter:blur(8px);opacity:0;transition:opacity .18s}.cover:hover .cover-tag{opacity:1}.note-info{padding:11px 5px 0}.note-info h2{font-size:15px;font-weight:600;line-height:1.65;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.note-meta{display:flex;align-items:center;justify-content:space-between;gap:4px;color:#8a8b8f;font-size:11px}.author{display:flex;align-items:center;gap:6px;white-space:nowrap}.author i{display:inline-flex;align-items:center;justify-content:center;font-size:10px;font-style:normal;background:#dfe7f6;color:#315896;border-radius:50%;width:20px;height:20px}.save{border:0;padding:4px 0 4px 6px;background:none;color:#7c7d82;font-size:19px;white-space:nowrap}.save span{font-size:11px;vertical-align:2px}.save[aria-pressed=true]{color:#ed5c57}.resume{margin:0 0 22px;background:#f5f7fb;border:1px solid #e9edf4;border-radius:10px;padding:13px 17px;font-size:13px;color:#6b778c;display:flex;gap:12px;align-items:center}.resume button{background:none;border:0;color:#375c8a;text-align:left}.empty{text-align:center;padding:60px;color:#888}.feed-end{border-top:1px solid #eee;padding:30px;text-align:center;display:grid;gap:12px;font-size:13px;color:#aaa}.feed-end a{color:#65768b}footer{font-size:11px;line-height:1.8;text-align:center;max-width:850px;margin:30px auto;color:#aaa}
#reader{position:fixed;inset:0;border:0;border-radius:22px;padding:0;width:min(1120px,calc(100vw - 140px));max-width:1440px;height:min(860px,calc(100dvh - 70px));max-height:920px;overflow:visible;background:white;box-shadow:0 20px 100px #0002}#reader::backdrop{background:#0006}.reader-shell{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr);height:100%;overflow:hidden;border-radius:22px}.reader-close{position:absolute;left:-60px;top:0;border:0;background:#ffffff3b;color:white;font-size:34px;width:42px;height:42px;border-radius:50%;line-height:36px}.reader-visual{background:#f3f3f1;position:relative;display:flex;align-items:center;justify-content:center;min-width:0;overflow:hidden}.reader-visual img{width:100%;height:100%;object-fit:contain}.reader-visual>a{position:absolute;bottom:12px;right:14px;font-size:11px;background:#ffffffd9;border-radius:15px;padding:7px 11px;color:#555}.reader-panel{display:flex;flex-direction:column;min-width:0;min-height:0;background:white}.reader-author{display:flex;align-items:center;padding:22px 24px;gap:11px;flex-shrink:0}.avatar{display:flex;align-items:center;justify-content:center;background:#2457da;color:#fff;border-radius:50%;width:35px;height:35px;font-size:16px}.reader-author b{font-size:13px;font-weight:500}.reader-author small{display:block;font-size:10px;color:#aaa;margin-top:3px}.source-pill{margin-left:auto;border:1px solid #ed5c57;border-radius:22px;padding:9px 12px;font-size:12px;color:#dd5a51}.reader-scroll{overflow:auto;overscroll-behavior:contain;padding:0 24px 25px;min-height:0;flex:1}.reader-scroll>h2{font-size:19px;line-height:1.65;margin:4px 0 14px}.reader-summary{font-size:14px;line-height:1.9;color:#60646c}.reader-tags{display:flex;flex-wrap:wrap;gap:9px;font-size:13px;color:#3c5e89}.update{color:#aaa;font-size:11px;margin:14px 0 22px}.reader-body{font-size:14px;line-height:1.95;overflow-wrap:anywhere}.reader-body h2{font-size:17px;margin:25px 0 12px}.reader-body h3{font-size:15px;margin:20px 0 10px}.reader-body a{color:#315f99;text-decoration:underline;text-underline-offset:3px}.reader-body ul,.reader-body ol{padding-left:22px}.reader-body pre{white-space:pre-wrap;background:#f5f5f5;padding:12px;border-radius:8px}.reader-body table{border-collapse:collapse;width:100%;font-size:12px;display:block;overflow:auto}.reader-body td,.reader-body th{border:1px solid #e8e8e8;padding:8px}.tool-match{margin-top:28px;background:#f8f6ef;border-radius:12px;padding:19px}.tool-match>span{font-size:11px;color:#ae8449}.tool-match h3{font-size:16px;line-height:1.6;margin:8px 0}.tool-match p{font-size:12px;line-height:1.8;color:#7e786d}.tool-match a{display:block;color:#a5632c;font-size:13px;font-weight:600;margin:12px 0}.tool-match a.subtle{font-size:12px;font-weight:400}.tool-match small{font-size:10px;color:#aaa28e;line-height:1.5;display:block}.reader-actions{display:flex;align-items:center;gap:11px;padding:16px 18px;border-top:1px solid #efefef;flex-shrink:0}.reader-actions button{border:0;background:none;white-space:nowrap;padding:7px 0;font-size:13px;color:#5c6068}.reader-actions #modal-save[aria-pressed=true]{color:#e35e54}.reader-actions>span{font-size:10px;color:#aaa;margin-left:auto}.reader-actions #next-note{color:#d85850}.reader-panel>#reader-message{min-height:0;margin:0;padding:0 18px 5px;font-size:10px;color:#888}.reader-panel>#reader-message:empty{display:none}#toast{position:fixed;bottom:35px;left:50%;transform:translateX(-50%);border-radius:24px;background:#222e;color:#fff;padding:11px 20px;z-index:100;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s}#toast.show{opacity:1}
@media(max-width:1700px){.waterfall{columns:4}}@media(max-width:1300px){.sidebar{width:185px;padding:30px 14px}.discovery-main{margin-left:185px;padding:28px 24px}.waterfall{columns:3;column-gap:22px}.brand{margin-bottom:35px}.tabs button{padding:10px 13px}}@media(max-width:1000px){.sidebar{width:158px;padding:25px 10px}.nav-item{font-size:13px;padding:12px 10px;gap:8px}.brand{font-size:18px;margin:0 8px 30px}.brand b{width:32px;line-height:34px;font-size:18px}.discovery-main{margin-left:158px;padding:22px 18px}.discovery-top{align-items:flex-start;flex-direction:column;gap:18px}.discovery-top form{width:100%;max-width:none}.waterfall{columns:3;column-gap:17px}.discovery-top h1{font-size:26px}.tabs{gap:0}.tabs button{font-size:13px}.tabs>span{display:none}.note-meta{font-size:10px}.save span{display:none}#reader{width:calc(100vw - 90px);height:calc(100dvh - 50px)}.reader-shell{grid-template-columns:minmax(0,1fr) minmax(330px,.95fr)}.reader-close{left:-40px;width:34px;height:34px;font-size:28px}.reader-author{padding:18px}.reader-scroll{padding:0 18px 22px}}
@media(max-width:700px){.sidebar{position:sticky;top:0;width:auto;height:57px;padding:10px 16px;flex-direction:row;align-items:center;justify-content:space-between;border-bottom:1px solid #eee;background:#fff;z-index:8}.brand{margin:0;font-size:17px;gap:6px}.brand b{line-height:30px;width:30px;border-radius:9px;font-size:16px}.sidebar nav{display:flex;gap:0}.sidebar nav .nav-item{display:none}.sidebar nav .nav-item[data-filter]{display:flex;font-size:12px;padding:8px 10px}.nav-item>span{font-size:19px;width:auto}.sidebar .side-bottom{display:none}.nav-item small{display:none}.discovery-main{margin:0;padding:21px 13px}.discovery-top{margin:0 4px 12px;gap:16px}.discovery-top h1{font-size:26px}.discovery-top p{font-size:12px}.eyebrow{font-size:9px}.discovery-top form{height:42px;padding-left:17px}.discovery-top input{font-size:12px}.tabs{top:57px;padding:10px 0 16px;gap:2px;margin-bottom:3px}.tabs button{font-size:12px;padding:9px 12px}.waterfall{columns:2;column-gap:12px}.cover{border-radius:12px}.note-card{margin-bottom:22px}.note-info{padding:9px 2px 0}.note-info h2{font-size:13px;line-height:1.6;margin-bottom:7px}.author{gap:4px;font-size:10px}.author i{width:17px;height:17px;font-size:9px}.save{font-size:18px;padding:2px}.cover-tag{display:none}.resume{font-size:11px;padding:11px;gap:5px;display:block}.resume button{font-size:11px;padding:4px 0}.feed-end{padding:22px 4px;font-size:12px}#reader{width:100vw;height:100dvh;max-height:100dvh;max-width:100vw;inset:0;border-radius:0;margin:0;overflow:auto}.reader-shell{display:flex;flex-direction:column;height:auto;min-height:100%;border-radius:0;overflow:visible}.reader-close{position:fixed;top:14px;left:14px;background:#0005;width:36px;height:36px;line-height:30px;z-index:20;color:white}.reader-visual{height:58dvh;min-height:330px;flex-shrink:0}.reader-visual img{object-fit:contain}.reader-panel{display:block}.reader-author{padding:18px 20px}.reader-scroll{overflow:visible;padding:0 20px 25px}.reader-scroll>h2{font-size:20px}.reader-actions{position:sticky;bottom:0;background:#fffffff5;backdrop-filter:blur(8px);padding:13px 20px;gap:18px;z-index:10}.reader-actions button{font-size:14px}.reader-body{font-size:15px}.reader-panel>#reader-message{background:white;text-align:center;padding-bottom:8px}.source-pill{padding:8px 12px;font-size:11px}.tool-match{margin-bottom:15px}}

/* Keep short filtered result sets in reading order without tall empty columns. */
.waterfall.filtered{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));align-items:start;gap:28px 24px}.waterfall.filtered .note-card{margin-bottom:0}
@media(max-width:1700px){.waterfall.filtered{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1300px){.waterfall.filtered{grid-template-columns:repeat(3,minmax(0,1fr));column-gap:22px}}
@media(max-width:1000px){.waterfall.filtered{column-gap:17px}}
@media(max-width:700px){.waterfall.filtered{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 12px}}