:root {
      --bg: #f5f7fb; --surface: #ffffff; --surface-2: #ffffff;
      --fg: #17263f; --muted: #6d7a90;
      --border: color-mix(in oklch, var(--fg) 16%, transparent); --border-strong: color-mix(in oklch, var(--fg) 34%, transparent);
      --accent: #1e4fa0; --on-accent: #ffffff;
      --ok: #3f7a4e; --hot: #b03a2e; --plan: #8a94a6;
      --font-display: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif; --font-body: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif; --font-mono: ui-monospace, Consolas, 'Courier New', monospace;
      --radius: 8px; --radius-lg: 12px;
      --head-weight: 700; --head-track: 0.03em;
      --gap-sm: 12px; --gap-md: 20px; --gap-lg: 32px; --gap-xl: 56px;
      --container: 1120px; --gutter: 28px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
    body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--font-body); font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
    a { color: inherit; text-decoration: none; }
    p { text-wrap: pretty; }
    h1, h2, h3 { text-wrap: balance; }
    :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
    .container { max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
    .section { padding-block: clamp(40px, 5.5vw, 64px); }
    .eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.24em; color: var(--accent); margin: 0 0 var(--gap-md); }
    .meta { font-family: var(--font-mono); font-size: 13px; color: var(--muted); letter-spacing: 0.02em; }
    h1 { font-family: var(--font-display); font-weight: var(--head-weight); letter-spacing: var(--head-track); font-size: clamp(32px, 4.4vw, 52px); line-height: 1.25; margin: 0; }
    h2 { font-family: var(--font-display); font-weight: var(--head-weight); letter-spacing: var(--head-track); font-size: clamp(23px, 3vw, 32px); line-height: 1.3; margin: 0; }
    h3 { font-family: var(--font-display); font-weight: var(--head-weight); letter-spacing: var(--head-track); margin: 0; }
    .lead { font-size: 16.5px; line-height: 1.8; color: var(--muted); max-width: 56ch; margin: 0; }

    /* nav variants */
    .topnav { position: sticky; top: 0; z-index: 10; background: color-mix(in oklch, var(--bg) 90%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
    .topnav .container { display: flex; align-items: center; justify-content: space-between; gap: var(--gap-md); min-height: 62px; flex-wrap: wrap; }
    .brand { font-family: var(--font-display); font-weight: var(--head-weight); font-size: 21px; letter-spacing: 0.12em; color: var(--fg); }
    .topnav nav { display: flex; gap: clamp(12px, 2.4vw, 30px); flex-wrap: wrap; }
    .topnav nav a { font-size: 14.5px; font-weight: 600; color: var(--muted); padding: 8px 2px; border-bottom: 2px solid transparent; }
    .topnav nav a:hover { color: var(--fg); }
    .topnav nav a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); }
    
    
    
    .topnav { border-bottom: 2px solid var(--border-strong); }
    .brand { background: var(--accent); color: var(--on-accent); padding: 16px 20px; margin-inline: -20px; }
    .topnav nav a { padding-block: 20px; }
    .topnav nav a[aria-current="page"] { border-bottom-width: 3px; }
    
    

    /* buttons */
    .btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 24px; border: 1px solid transparent; border-radius: var(--radius); font-size: 15px; font-weight: 600; letter-spacing: 0.02em; transition: background .15s ease, color .15s ease, border-color .15s ease; }
    .btn:active { transform: translateY(1px); }
    .btn-primary { background: var(--accent); color: var(--on-accent);  }
    .btn-primary:hover { background: color-mix(in oklch, var(--accent) 84%, var(--bg)); }
    .btn-secondary { border-color: var(--border-strong); color: var(--fg); }
    .btn-secondary:hover { border-color: var(--fg); }
    .textlink { color: var(--accent); font-size: 14px; font-weight: 600; }
    .textlink:hover { text-decoration: underline; }
    .hero-cta { display: flex; gap: var(--gap-sm); flex-wrap: wrap; }

    /* hero variants */
    .hero { padding-block: clamp(52px, 8vw, 96px); }
    .hero-split { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: var(--gap-xl); align-items: center; }
    .hero h1 { margin-bottom: var(--gap-md); }
    .hero .lead { margin-bottom: var(--gap-lg); }
    
    
    
    
    
    
    

    /* quick server card (hero side) */
    .qs-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; }
    .qs-row { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; padding: 11px 0; border-top: 1px solid var(--border); font-size: 14px; }
    .qs-row:first-of-type { border-top: 0; }
    .dot { display: inline-block; width: 8px; height: 8px; border-radius: 0; flex: none; }
    .dot-ok { background: var(--ok); } .dot-hot { background: var(--hot); } .dot-plan { background: var(--plan); }

    /* section head */
    .sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--gap-md); margin-bottom: 26px; flex-wrap: wrap; }
    .sec-head h2::before { content: ''; display: inline-block; width: 10px; height: 10px; background: var(--accent); margin-right: 12px; }
    .sec-sub { color: var(--muted); font-size: 14.5px; margin: -14px 0 28px; }

    /* list variants */
    .paper-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap-lg); }
    .paper-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-md); }
    .news-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px 24px;  }
    .news-card .cat { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.18em; color: var(--accent); margin: 0 0 8px; }
    .news-card h3 { font-size: 18px; line-height: 1.5; }
    .news-card:hover h3 { color: var(--accent); }
    .news-card p { margin: 0 0 10px; color: var(--muted); font-size: 14px; line-height: 1.75; }
    .news-card .date { font-family: var(--font-mono); font-size: 12.5px; color: var(--muted); }
    .row-item { display: grid; grid-template-columns: 92px 1fr; gap: var(--gap-lg); padding: 21px 0; border-top: 1px solid var(--border); align-items: baseline; }
    .row-item:first-of-type { border-top: 0; }
    .row-item h3 { font-size: 18px; transition: color .12s ease; }
    .row-item a:hover h3 { color: var(--accent); }
    .row-item p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
    .num-item { display: grid; grid-template-columns: 88px 1fr; gap: var(--gap-lg); padding: 22px 0; border-top: 1px solid var(--border); align-items: baseline; }
    .num-item:first-of-type { border-top: 0; }
    .num-no { font-family: var(--font-mono); font-size: 26px; font-weight: 700; color: var(--border-strong); }
    .num-item:hover .num-no, .num-item:hover h3 { color: var(--accent); }
    .num-item h3 { font-size: 19px; margin-bottom: 6px; }
    .num-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .mini-list .m-row { display: flex; justify-content: space-between; align-items: baseline; gap: var(--gap-md); padding: 12px 0; border-top: 1px solid var(--border); }
    .mini-list .m-row:first-of-type { border-top: 0; }
    .mini-list a { font-size: 15px; }
    .mini-list a:hover { color: var(--accent); }

    /* pagehead */
    .pagehead { padding-block: clamp(38px, 5.5vw, 58px) 0; }
    .pagehead h1 { margin-bottom: 12px; }

    /* layout with sidebar */
    .layout { display: grid; grid-template-columns: 1fr 300px; gap: var(--gap-xl); align-items: start; }

    /* sidebar widgets */
    .widget { margin-bottom: 44px; }
    .widget-title { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: var(--head-weight); font-size: 17.5px; letter-spacing: var(--head-track); padding-bottom: 11px; margin-bottom: 2px; border-bottom: 2px solid var(--border-strong); }
    .widget-title::before { content: ''; width: 9px; height: 9px; background: var(--fg); flex: none; }
    .widget-title .more { margin-left: auto; font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); }
    .widget-title .more:hover { color: var(--accent); }
    .w-row { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
    .w-row:last-of-type { border-bottom: 0; }
    .w-row a:hover { color: var(--accent); }
    .w-row .t { font-family: var(--font-mono); font-size: 12px; color: var(--muted); flex: none; }

    /* server tables */
    .table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); }
    .ds-table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 620px; }
    .ds-table th { background: var(--surface-2); color: var(--fg); text-align: left; padding: 12px 16px; font-weight: 600; font-size: 13px; letter-spacing: 0.08em; border-bottom: 2px solid var(--border); }
    .ds-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); }
    .ds-table tbody tr:last-child td { border-bottom: 0; }
    .ds-table tbody tr:hover { background: color-mix(in oklch, var(--fg) 4%, transparent); }
    .ds-table .t { font-family: var(--font-mono); }
    .status { display: inline-flex; align-items: center; gap: 8px; }

    /* server cards/timeline/capsule */
    .sv-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap-md); }
    .sv-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-md); }
    .sv-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px 22px; }
    .sv-card .sv-t { font-family: var(--font-mono); font-size: 22px; font-weight: 700; color: var(--accent); margin-bottom: 4px; }
    .sv-card .sv-n { font-size: 14.5px; font-weight: 600; }
    .sv-card .sv-meta { display: flex; justify-content: space-between; margin-top: 10px; color: var(--muted); font-size: 12.5px; font-family: var(--font-mono); }
    .tl-row { display: grid; grid-template-columns: 96px 1fr; gap: var(--gap-lg); padding: 16px 0; border-left: 3px solid var(--border); padding-left: 22px; margin-left: 6px; position: relative; }
    .tl-row::before { content: ''; position: absolute; left: -8px; top: 24px; width: 13px; height: 13px; border-radius: 50%; background: var(--bg); border: 3px solid var(--accent); }
    .tl-row .tl-t { font-family: var(--font-mono); font-size: 19px; font-weight: 700; }
    .capsule-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap-md); }
    .capsule-card { display: flex; align-items: center; justify-content: space-between; gap: 12px; background: var(--surface); border-radius: 999px; padding: 14px 26px; box-shadow: 0 4px 18px color-mix(in oklch, var(--fg) 8%, transparent); flex-wrap: wrap; }

    /* pager */
    .pager { display: flex; gap: 8px; margin-top: 40px; flex-wrap: wrap; }
    .pager a, .pager span { min-width: 42px; padding: 8px 13px; text-align: center; border: 1px solid var(--border); border-radius: var(--radius); font-family: var(--font-mono); font-size: 13px; color: var(--fg); }
    .pager a:hover { border-color: var(--accent); color: var(--accent); }
    .pager .current { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-weight: 700; }

    /* notice card */
    .note-card { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px 26px; }
    .note-card h3 { font-size: 17px; margin-bottom: 8px; }
    .note-card p { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.9; }

    /* prose */
    .prose { max-width: 68ch; }
    .prose p { margin: 0 0 18px; line-height: 1.9; }
    
    .prose h2 { font-size: 22px; margin: 42px 0 16px; padding-top: 26px; border-top: 1px solid var(--border); }
    .prose h2:first-of-type { border-top: 0; padding-top: 4px; margin-top: 24px; }
    .prose h2 .sec-no { font-family: var(--font-mono); font-size: 14px; color: var(--accent); margin-right: 10px; }
    .prose strong { font-weight: 700; }
    .prose .hl { color: var(--accent); font-weight: 700; }
    .art-head { padding-bottom: 24px; border-bottom: 2px solid var(--border-strong); margin-bottom: 30px; }
    .art-head h1 { margin-bottom: 14px; }
    .art-meta { display: flex; gap: 18px; flex-wrap: wrap; }

    /* footer */
    .pagefoot { border-top: 2px solid var(--border-strong); padding-block: var(--gap-xl); color: var(--muted); font-size: 13px; line-height: 1.9; }
    .foot-row { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

    /* responsive */
    @media (max-width: 920px) {
      .layout { grid-template-columns: 1fr; }
      .hero-split, .hero-vertical { grid-template-columns: 1fr; }
      .v-title { writing-mode: horizontal-tb; height: auto; border-left: 0; padding-left: 0; border-bottom: 1px solid var(--border); padding-bottom: 18px; }
      .paper-grid, .paper-grid3, .sv-grid, .sv-grid3, .capsule-grid { grid-template-columns: 1fr; }
      .row-item, .num-item { grid-template-columns: 76px 1fr; gap: var(--gap-md); }
      .widget { margin-bottom: 36px; }
    }
    @media (max-width: 600px) {
      .topnav .container { padding-block: 8px; }
      .row-item, .num-item { grid-template-columns: 1fr; gap: 4px; }
    }
.gem-picks-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap-xl)}
@media(max-width:920px){.gem-picks-grid{grid-template-columns:1fr}}