:root{--brand-primary: #8b1a2b;--brand-primary-light: #a8324b;--brand-primary-dark: #5c0e16;--brand-accent: #846a0c;--bg-brand-light: #f5ebee;--bg-page: #ffffff;--bg-muted: #faf7f8;--bg-code: #f6f2f3;--text-primary: #1a202c;--text-secondary: #4a5568;--text-tertiary: #718096;--text-on-dark: #f7f0f1;--border: #ece4e6;--border-strong: #d4c4c8;--shadow-sm: 0 1px 3px rgba(28, 20, 22, .06);--shadow-md: 0 10px 30px rgba(28, 20, 22, .08);--shadow-lg: 0 24px 60px rgba(28, 20, 22, .14);--radius: 14px;--radius-sm: 8px;--radius-lg: 22px;--container: 1140px;--container-narrow: 820px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;--font-mono: "SF Mono", "Fira Code", "Cascadia Code", "JetBrains Mono", Consolas, 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var(--border)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:40px;height:40px;border-radius:10px;object-fit:contain}.brand-text{display:flex;flex-direction:column;line-height:1.2}.brand-text strong{font-size:18px;color:var(--brand-primary-dark)}.brand-text small{font-size:11px;letter-spacing:1.5px;color:var(--text-tertiary)}.site-nav{display:flex;align-items:center;gap:28px}.site-nav a{font-size:15px;color:var(--text-secondary);position:relative;padding:4px 0}.site-nav a:hover,.site-nav a.active{color:var(--brand-primary)}.site-nav a:after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--brand-primary);transition:width .25s}.site-nav a:hover:after,.site-nav a.active:after{width:100%}.nav-toggle{display:none;flex-direction:column;gap:5px;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:10px;background:#fff;cursor:pointer}.nav-toggle span{width:20px;height:2px;background:var(--brand-primary-dark);transition:transform .25s,opacity .25s}.hero{position:relative;overflow:hidden;background:radial-gradient(900px 500px at 85% -10%,rgba(168,50,75,.18),transparent 60%),radial-gradient(700px 500px at -10% 110%,rgba(132,106,12,.12),transparent 55%),linear-gradient(135deg,var(--brand-primary-dark),var(--brand-primary) 55%,var(--brand-primary-light));color:var(--text-on-dark)}.hero-inner{padding:96px 24px 104px;max-width:860px;margin:0 auto;text-align:center}.hero-eyebrow{font-size:15px;letter-spacing:2px;opacity:.9;margin-bottom:20px}.hero-title{font-size:clamp(40px,7vw,64px);font-weight:800;letter-spacing:2px;line-height:1.15;margin-bottom:24px}.hero-desc{font-size:clamp(16px,2vw,19px);line-height:1.9;opacity:.95;max-width:680px;margin:0 auto 36px}.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}section{padding:84px 0}.section-title{font-size:clamp(26px,4vw,36px);font-weight:800;color:var(--brand-primary-dark);text-align:center;margin-bottom:12px}.section-subtitle{text-align:center;color:var(--text-tertiary);font-size:16px;margin-bottom:48px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 30px;border-radius:999px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:#fff;color:var(--brand-primary-dark);box-shadow:0 8px 24px #0000002e}.btn-primary:hover{box-shadow:0 12px 32px #0000003d}.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff;background:transparent}.btn-ghost:hover{background:#ffffff1f}.btn-brand{background:var(--brand-primary);color:#fff}.btn-brand:hover{background:var(--brand-primary-dark);box-shadow:var(--shadow-md)}.btn-outline{border:1.5px solid 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