:root{--blue:#2f6680;--line:#d7dde1;--text:#25323a;--muted:#65727a;--bg:#eef1f3;--panel:#fff;--red:#d84b3f;--orange:#e19a35}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.7 "Microsoft YaHei UI","PingFang SC",Arial,sans-serif}a{color:var(--blue);text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}.container{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}.site-header h1{font-size:20px;margin:0;color:#1e3f50}.site-header p{font-size:12px;color:var(--muted);margin:2px 0 0}.site-header nav{display:flex;gap:20px;font-size:13px}.site-header nav a:hover{text-decoration:underline}main{padding:24px 0 50px}.panel{background:var(--panel);border:1px solid 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