:root{--ink:#17212b;--muted:#62707b;--paper:#f6f3ec;--accent:#e4573e;--yellow:#f2bd52;--line:#d8d3c8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Noto Sans SC',sans-serif}a{text-decoration:none;color:inherit}.topbar{position:fixed;top:0;left:0;right:0;z-index:10;background:rgba(246,243,236,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(216,211,200,.7)}.topbar-inner{max-width:1200px;margin:auto;height:76px;display:flex;align-items:center;gap:42px;padding:0 28px}.brand,.footer-brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:0}.brand-mark{display:grid;place-items:center;width:32px;height:32px;background:var(--accent);color:#fff;font-family:'Ma Shan Zheng',serif;font-size:22px;transform:rotate(-8deg);border-radius:7px}.nav{display:flex;gap:28px;color:#5e6972;font-size:14px}.nav a:hover{color:var(--accent)}.top-download{margin-left:auto;border:1px solid var(--ink);padding:11px 17px;font-size:13px}.top-download span{color:var(--accent);margin-left:7px}.hero{min-height:760px;position:relative;overflow:hidden;display:flex;align-items:center}.hero-bg{position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,25,34,.92) 0%,rgba(14,25,34,.72) 36%,rgba(14,25,34,.2) 73%,rgba(14,25,34,.35)),url('https://images.unsplash.com/photo-1518709268805-4e9042af9f23?auto=format&fit=crop&w=2200&q=85') center/cover}.hero-glow{position:absolute;width:520px;height:520px;border-radius:50%;right:8%;top:15%;background:rgba(226,113,64,.3);filter:blur(90px)}.hero-content{position:relative;z-index:1;max-width:1200px;width:100%;margin:auto;padding:120px 28px 80px;color:#fff}.eyebrow,.kicker{font-size:11px;letter-spacing:3px;color:var(--yellow);font-weight:700}.hero h1{font-size:clamp(74px,10vw,150px);line-height:.9;margin:20px 0 28px;font-weight:900;letter-spacing:-3px}.hero h1 em,.download h2 em{color:var(--yellow);font-style:normal}.hero-copy{font-size:18px;line-height:1.9;color:#d4dbe0}.hero-actions{display:flex;gap:12px;margin-top:36px}.btn{padding:15px 24px;font-weight:700;font-size:14px}.btn-primary{background:var(--accent);color:#fff}.btn-primary span{margin-left:18px}.btn-ghost{border:1px solid rgba(255,255,255,.45);color:#fff}.btn-ghost span{margin-left:18px;color:var(--yellow)}.hero-note{margin-top:80px;font-size:12px;color:#b7c2c9}.note-dot{display:inline-block;width:7px;height:7px;background:#7bd6a2;border-radius:50%;margin-right:8px}.hero-stamp{position:absolute;right:13%;bottom:18%;z-index:1;width:116px;height:116px;border:1px solid rgba(255,255,255,.5);border-radius:50%;display:grid;place-items:center;color:#fff;text-align:center;transform:rotate(12deg)}.hero-stamp span{font-size:20px;font-weight:900;line-height:1.1}.hero-stamp small{position:absolute;bottom:-18px;white-space:nowrap;font-size:10px;color:#d9e0e5}.scroll-cue{position:absolute;bottom:28px;left:50%;z-index:1;transform:translateX(-50%);color:#d9e0e5;font-size:11px;letter-spacing:2px}.scroll-cue span{margin-left:10px;color:var(--yellow)}.section{max-width:1200px;margin:auto;padding:110px 28px}.section-heading{margin-bottom:54px}.section-heading h2{font-size:48px;line-height:1.15;margin:12px 0 18px}.section-heading h2 em{color:var(--accent);font-style:normal}.section-heading>p:last-child{color:var(--muted);margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-card{min-height:280px;padding:30px;position:relative;overflow:hidden;border-top:3px solid var(--accent);background:#fff}.feature-card:nth-child(2){border-top-color:var(--yellow)}.feature-card:nth-child(3){border-top-color:#78a1a8}.feature-icon{font-size:34px;color:var(--accent);margin-bottom:35px}.feature-card:nth-child(2) .feature-icon{color:#c99329}.feature-card:nth-child(3) .feature-icon{color:#5f8f98}.feature-card h3{font-size:24px;margin:0 0 12px}.feature-card p{color:var(--muted);line-height:1.75;font-size:14px;max-width:250px}.card-index{position:absolute;right:25px;bottom:20px;color:#d8d3c8;font-size:28px;font-weight:900}.heroes{display:grid;grid-template-columns:1.1fr .9fr;gap:85px;align-items:center;background:#ece8de;max-width:none;padding-left:max(28px,calc((100% - 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