:root{color-scheme:light;--bg:#ffffff;--surface:#f7f8f5;--surface-strong:#eef3ea;--text:#111316;--muted:#5f666d;--line:#dfe4de;--accent:#176b4d;--accent-soft:#dcece4;--cover:#c8d7ca;--font-sans:-apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;--font-display:"PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;font-family:var(--font-sans)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);line-height:1.65}a{color:inherit}.site-header,.site-footer,.hero,.section{width:min(1080px,calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:50;width:100%;margin:0;border-bottom:1px solid transparent;background:rgba(255,255,255,0);transition:background 180ms ease,border-color 180ms ease,box-shadow 180ms ease}.site-header.is-scrolled{border-color:rgba(223,228,222,.82);background:rgba(255,255,255,.78);box-shadow:0 12px 34px rgba(17,19,22,6%);backdrop-filter:blur(18px)saturate(1.25);-webkit-backdrop-filter:blur(18px)saturate(1.25)}.site-header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:min(1080px,calc(100% - 40px));margin:0 auto;padding:22px 0}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-size:1.2rem;font-weight:800;letter-spacing:0;text-decoration:none}.brand img{width:32px;height:32px;border-radius:8px;box-shadow:0 5px 16px rgba(17,19,22,.12)}.site-nav,.site-footer nav{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:.95rem}.site-nav a,.site-footer a{text-decoration:none;transition:color 180ms ease}.site-nav a:hover,.site-footer a:hover{color:var(--accent)}.hero{display:grid;grid-template-columns:minmax(0,1.16fr)minmax(280px,.64fr);align-items:start;gap:64px;min-height:calc(100vh - 220px);padding:54px 0 72px}.hero-copy{max-width:620px;padding-top:34px}.eyebrow{margin:0 0 14px;color:var(--accent);font-size:.8rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.hero-kicker{max-width:620px;margin:0 0 16px;color:var(--accent);font-size:1.05rem;font-weight:850;line-height:1.3}.hero h1{max-width:620px;font-size:3.82rem}h1,h2,h3{margin:0;color:var(--text);font-family:var(--font-display);letter-spacing:0;line-height:1.08}h1{font-size:5.8rem}h2{font-size:3rem}h3{font-size:1.12rem}.lead{max-width:580px;margin:24px 0 0;color:var(--muted);font-size:1.24rem}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;color:var(--muted);font-size:.95rem}.hero-points span{border:1px solid var(--line);border-radius:999px;background:var(--surface);padding:6px 11px}.button{display:inline-flex;align-items:center;min-height:46px;border:1px solid var(--line);border-radius:999px;padding:10px 18px;font-weight:750;text-decoration:none;transition:background 180ms ease,border-color 180ms ease,color 180ms ease}.button.primary{border-color:var(--accent);background:var(--accent);color:#fff}.button.primary:hover{background:#10583e}.button.secondary{background:#fff;color:var(--text)}.button.secondary:hover{border-color:var(--accent);color:var(--accent)}.section{padding:76px 0;border-top:1px solid var(--line)}.section-heading{max-width:760px}.section-heading p:not(.eyebrow){color:var(--muted)}