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*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif;line-height:1.72;overflow-x:hidden}body.drawer-open{overflow:hidden}img{max-width:100%;height:auto}a{color:inherit}button,a{touch-action:manipulation}.skip-link{position:fixed;left:16px;top:-60px;z-index:12000;background:#fff;color:var(--blue-dark);padding:10px 16px;border-radius:8px;box-shadow:var(--shadow)}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;width:100%;z-index:9999;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid #e5edf5;box-shadow:0 6px 20px rgba(43,97,153,.08)}.header-inner{max-width:var(--max);min-height:70px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}.site-logo{display:inline-flex;align-items:center;flex:0 0 auto}.site-logo 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@media(max-width:420px){.header-download{padding:0 10px;font-size:13px}.site-logo img{max-width:120px}.hero h1{font-size:36px}.hero-actions>*{width:100%}.stats-strip{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr;gap:24px 12px}}