:root{color-scheme:light;--bg: #ffffff;--bg-soft: #f5f6f3;--text: #11120f;--muted: #5f665f;--muted-strong: #394139;--line: #dde2da;--line-strong: #b8c0b5;--surface: #ffffff;--surface-dark: #08111d;--accent: #2f6f68;--accent-warm: #c76e2f;--accent-soft: #e2f0ea;--shadow: 0 24px 80px rgba(19, 24, 20, .12);--font-display: "Segoe UI Variable Display", "Microsoft YaHei UI", "PingFang SC", sans-serif;--font-body: "Segoe UI Variable Text", "Microsoft YaHei UI", "PingFang SC", sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:var(--bg);color:var(--text);font-family:var(--font-body)}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,a{-webkit-tap-highlight-color:transparent}#root{isolation:isolate}.page-shell{overflow:clip}.site-header{position:sticky;top:0;z-index:10;display:grid;grid-template-columns:minmax(180px,1fr) auto minmax(180px,1fr);align-items:center;gap:28px;min-height:72px;padding:0 48px;border-bottom:1px solid rgba(221,226,218,.78);background:#ffffffe0;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand-lockup{justify-self:start;display:inline-flex;align-items:center;gap:12px;color:var(--text);font-family:var(--font-display);font-size:1rem;font-weight:700}.brand-lockup img{width:34px;height:34px;object-fit:contain}.site-nav{justify-self:center;display:inline-flex;align-items:center;gap:34px;color:var(--muted);font-size:1.08rem;font-weight:560}.nav-link{transition:color .16s ease}.nav-link:hover,.nav-link:focus-visible{color:var(--text)}.header-action{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 16px;border:1px solid var(--text);border-radius:8px;font-size:.92rem;font-weight:700;transition:background-color .16s ease,color .16s ease}.header-action:hover,.header-action:focus-visible{background:var(--text);color:var(--bg)}.hero-section{padding:54px 48px 34px;border-bottom:1px solid 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.activity-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:18px 0 20px}.hero-visual-grid .activity-stats div{padding:12px}.hero-visual-grid .activity-stats dt{font-size:.72rem}.hero-visual-grid .activity-stats dd{font-size:1.12rem}.hero-visual-grid .heatmap-scroll{padding-bottom:6px}.hero-visual-grid .heatmap-months{grid-template-columns:repeat(var(--week-count),8px);column-gap:3px;margin-left:30px;font-size:.68rem}.hero-visual-grid .heatmap-body{grid-template-columns:22px max-content;gap:8px}.hero-visual-grid .heatmap-weekdays{grid-template-rows:repeat(7,8px);row-gap:3px;font-size:.66rem;line-height:8px}.hero-visual-grid .heatmap-grid{grid-template-columns:repeat(var(--week-count),8px);grid-template-rows:repeat(7,8px);gap:3px}.hero-visual-grid .heatmap-day{width:8px;height:8px;border-radius:2px}.hero-visual-grid .heatmap-legend{margin-top:8px}.product-preview{width:min(1120px,100%);margin:36px auto 0;overflow:hidden;border:1px solid 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var(--line);border-radius:8px;background:#11120f;color:#fff}.launch-brand{display:inline-flex;align-items:center;gap:14px;margin-bottom:30px;color:#fff;font-family:var(--font-display);font-size:1.05rem;font-weight:760}.launch-brand img{width:46px;height:46px;object-fit:contain}.launch-section h2{color:#fff}.launch-section p{max-width:650px;margin:24px 0 30px;color:#ffffffb8;font-size:1.12rem;line-height:1.75}.launch-section .button-primary{background:#fff;color:#11120f}.site-footer{display:flex;justify-content:space-between;gap:16px;padding:0 48px 34px;color:var(--muted);font-size:.92rem}@media(max-width:1180px){.hero-visual-grid{grid-template-columns:1fr;width:min(1120px,100%)}.hero-visual-grid .product-preview img{height:300px}}@media(max-width:980px){.site-header{grid-template-columns:1fr;padding:0 24px}.site-nav{display:none}.hero-section,.intro-section,.git-activity-section,.workflow-section,.surfaces-section,.launch-section{padding-left:24px;padding-right:24px}.hero-copy h1{font-size:5.35rem}.hero-mark{width:92px;height:92px}.hero-copy p{font-size:1.22rem}.intro-section,.activity-heading,.section-header,.feature-story,.activity-shell,.surfaces-section{grid-template-columns:1fr}.intro-section h2,.activity-heading h2,.section-header h2,.surfaces-copy h2,.launch-section h2{font-size:3rem}.activity-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.workflow-grid,.proof-list{grid-template-columns:1fr}.product-preview img,.hero-visual-grid .product-preview img{height:270px}}@media(max-width:640px){.site-header{min-height:64px}.brand-lockup span{max-width:140px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.header-action{min-height:36px;padding:0 12px;font-size:.86rem}.hero-section{padding-top:40px}.hero-copy h1{font-size:3rem}.hero-brand{gap:14px}.hero-mark{width:62px;height:62px}.hero-copy 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h3{font-size:1.82rem;line-height:1.12}.workflow-step{min-height:240px}.workflow-step h3{margin-top:52px}.site-footer{flex-direction:column;padding-left:24px;padding-right:24px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}