:root{color-scheme:light;--color-bg: #fbfbfa;--color-surface: #ffffff;--color-surface-soft: #f4f4f1;--color-text: #111111;--color-muted: #5b5f68;--color-subtle: #8b9099;--color-border: #deded8;--color-border-strong: #c9c9c1;--color-accent: #1148d8;--color-accent-strong: #0b36a8;--color-cta: #e0452c;--color-cta-strong: #c0341d;--color-cta-soft: #fdf0ed;--color-ai: #7a4ab2;--color-dev: #177245;--color-engineering: #c8661a;--color-tools: #2759c7;--shadow-subtle: 0 16px 45px rgba(15, 20, 30, .06);--radius-sm: 4px;--radius-md: 8px;--max-page: 1460px;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Inter, system-ui, sans-serif;--font-serif: "Noto Serif SC", "Songti SC", "STSong", Georgia, serif;--font-mono: "SFMono-Regular", "Cascadia Code", Consolas, monospace;--step-0: 1rem;--step-1: 1.125rem;--step-2: 1.375rem;--step-3: 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#1148d829}.button.secondary{background:var(--color-surface);color:var(--color-accent);box-shadow:none}.button:hover{background:var(--color-accent-strong);border-color:var(--color-accent-strong)}.button.secondary:hover{background:#eef2ff;color:var(--color-accent-strong)}.hero{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:var(--space-12);padding:var(--space-10) 0 var(--space-8);border-bottom:1px solid var(--color-border)}.date-line{display:flex;flex-wrap:wrap;gap:var(--space-3);color:var(--color-muted);font-weight:700}.date-line strong{color:var(--color-accent)}.hero h1{max-width:780px;margin:var(--space-6) 0 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small{display:none}.edition-status{font-size:.68rem}.lead-story h1{font-size:1.95rem}.issue-metrics{grid-template-columns:1fr}.issue-metrics>div{display:grid;grid-template-columns:58px 1fr;border-bottom:1px solid #303535}.issue-metrics dd{margin:0}.wechat-panel{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){.button,.home-feature-media img{transition:none}.button:hover{transform:none}}