:root{--font-serif: "Songti SC", "STSongti-SC-Regular", "STSong", "SimSun", "Noto Serif CJK SC", serif;--ink: #17191d;--muted: #726d66;--line: rgba(23, 25, 29, .16);--page: #ebe8e2;--paper: #f6f2eb;--panel: #fcfaf7;--mark: #efe2a6;--product-bg: #eaf1e8;--product-line: #bdcab9;--product-ink: #3f624a;--content-bg: #f5e7df;--content-line: #dbc0b1;--content-ink: #8b5a46;--conversation-bg: #e8edf5;--conversation-line: #b9c5d9;--conversation-ink: #4f6285;--quote-bg: #eee8df;--quote-line: #cec0ad;--quote-ink: #7b654e;color:var(--ink);background:var(--page);font-family:var(--font-serif);line-height:1.5}*{box-sizing:border-box}body{margin:0;min-width:320px;background:var(--page);-webkit-font-smoothing:antialiased;font-synthesis-weight:none}main{width:min(1180px,calc(100vw - 44px));margin:0 auto;padding:34px 0 72px}.page-header{position:sticky;top:0;z-index:5;display:grid;grid-template-columns:minmax(0,1fr) max-content;gap:42px;align-items:end;min-height:230px;padding:42px 56px 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#1e1c1809;transform-origin:center;will-change:transform,box-shadow;cursor:pointer}.card:focus-visible{outline:2px solid rgba(23,25,29,.32);outline-offset:4px}.card-surface{min-height:100%;border:1px solid var(--card-line, var(--line));border-radius:8px;background:var(--card-bg, rgba(255, 255, 255, .56));padding:24px 28px 26px;cursor:pointer}.card-product{--card-bg: var(--product-bg);--card-line: var(--product-line);--type-ink: var(--product-ink)}.card-content{--card-bg: var(--content-bg);--card-line: var(--content-line);--type-ink: var(--content-ink)}.card-conversation{--card-bg: var(--conversation-bg);--card-line: var(--conversation-line);--type-ink: var(--conversation-ink)}.card-quote{--card-bg: var(--quote-bg);--card-line: var(--quote-line);--type-ink: var(--quote-ink)}.card .type-label{color:var(--type-ink, var(--muted));font-size:21px;font-weight:850}.card-header{display:flex;justify-content:space-between;gap:18px}.card 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