@import url("https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;700;900&family=JetBrains+Mono:wght@400;600&display=swap");:root{--red:#ef2b3a;--red-deep:#d81324;--red-soft:#ff5a67;--blue:#2b57c8;--blue-bright:#3b82f6;--ink:#0c0e16;--ink-2:#141828;--ink-3:#1d2336;--paper:#f6f7fb;--white:#fff;--text:#161a26;--muted:#5b6478;--line:#e6e9f2;--radius:16px;--radius-sm:10px;--shadow:0 18px 50px -18px rgba(18,24,48,.25);--shadow-red:0 16px 44px -16px rgba(239,43,58,.5);--maxw:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Sora,Noto Sans SC,-apple-system,PingFang SC,Microsoft YaHei,sans-serif;color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased;line-height:1.7}h1,h2,h3,h4{font-family:Sora,Noto Sans SC,PingFang SC,sans-serif;line-height:1.2;margin:0;font-weight:800;letter-spacing:-.01em}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}.mono{font-family:JetBrains Mono,monospace}.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease;white-space:nowrap}.btn:hover{transform:translateY(-2px)}.btn-primary{background:linear-gradient(135deg,var(--red-soft),var(--red));color:#fff;box-shadow:var(--shadow-red)}.btn-ghost{background:hsla(0,0%,100%,.08);color:#fff;border-color:hsla(0,0%,100%,.22);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.btn-outline{background:transparent;color:var(--red);border-color:var(--red)}.btn-light{background:#fff;color:var(--ink)}.section{padding:96px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:JetBrains Mono,monospace;font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--red)}.eyebrow:before{content:"";width:26px;height:2px;background:var(--red);border-radius:2px}.section-title{font-size:clamp(28px,4vw,42px);margin:16px 0}.section-desc{color:var(--muted);font-size:17px;max-width:640px}@keyframes rise{0%{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}.reveal{opacity:0}.reveal.in{animation:rise .8s cubic-bezier(.2,.7,.2,1) forwards}.prose{font-size:16.5px;line-height:1.9;color:#2a3040}.prose p{margin:0 0 1.1em}.prose h2,.prose h3{margin:1.6em 0 .6em}.prose h3{font-size:22px}.prose ol,.prose ul{padding-left:1.4em}.prose img{border-radius:12px;margin:1.4em 0}.prose a{color:var(--red);text-decoration:underline}.prose blockquote{border-left:3px solid var(--red);margin:1.2em 0;padding:4px 18px;color:var(--muted);background:#fff;border-radius:0 8px 8px 0}.site-header{position:fixed;top:0;left:0;right:0;z-index:60;transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;border-bottom:1px solid transparent}.site-header.scrolled{background:hsla(0,0%,100%,.86);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom-color:var(--line)}.site-header .nav-link{position:relative;font-weight:600;font-size:15px;color:#e7eaf3;padding:6px 2px;transition:color .2s}.site-header.scrolled .nav-link{color:var(--text)}.site-header .nav-link:after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--red);transition:width .25s}.site-header .nav-link.active:after,.site-header .nav-link:hover:after{width:100%}.site-header .nav-link:hover{color:var(--red)}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:transform .3s ease,box-shadow .3s ease,border-color .3s}.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}.grid{display:grid;grid-gap:28px;gap:28px}::selection{background:var(--red);color:#fff}