:root{--pink:#FF1765;--pink2:#FF3D7D;--rose:#E90052;--soft:#FFF0F5;--soft2:#FFF7FA;--gray:#F7F7F8;--title:#222;--text:#444;--muted:#777;--line:rgba(0,0,0,.08);--pline:rgba(255,23,101,.12);--shadow:0 14px 40px rgba(30,20,25,.08);--pshadow:0 16px 42px rgba(255,23,101,.14);--max:1280px;--nav:72px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;background:#fff;overflow-x:hidden}body.locked{overflow:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}button,input{font:inherit}button{cursor:pointer}.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.nav-wrap{height:var(--nav);max-width:var(--max);margin:auto;padding:0 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