*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:#141414;font-family:Georgia,"Times New Roman",Times,serif;font-size:18px;line-height:1.6}
a{color:#16407a}
a:hover{color:#0b2a52}
.top{border-bottom:1px solid #d9d9d9;background:#fafafa}
.top-inner{max-width:820px;margin:0 auto;padding:10px 16px;display:flex;flex-wrap:wrap;gap:4px 18px;align-items:baseline;justify-content:space-between}
.brand{color:#141414;text-decoration:none;font-weight:700;letter-spacing:.02em}
.brand span{font-weight:400;color:#555;letter-spacing:0;font-size:15px}
.top nav{font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:14px}
.top nav a{margin-left:14px}
.top nav a:first-child{margin-left:0}
main{max-width:820px;margin:0 auto;padding:18px 16px 48px}
.crumbs{font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:14px;color:#555;margin:0 0 14px}
h1{font-size:27px;line-height:1.3;margin:0 0 14px}
h2{font-size:20px;margin:26px 0 8px}
h3{font-size:18px;margin:20px 0 8px}
.authors{margin:0;font-weight:700}
.aff{margin:2px 0 10px;color:#333;font-size:16px;line-height:1.5}
.meta{margin:0 0 14px;color:#444;font-size:16px}
.meta em{font-style:italic}
.btn{display:inline-block;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:15px;line-height:1;padding:10px 16px;border-radius:4px;background:#16407a;color:#fff;text-decoration:none}
.btn:hover{background:#0b2a52;color:#fff}
.abstract{text-align:justify;margin:0 0 12px}
.kw{margin:0;font-size:16px}
.cite{background:#f4f4f4;border-left:3px solid #c8c8c8;padding:10px 14px;font-size:16px;margin:0}
.intro{color:#333}
.nw{white-space:nowrap}
.toc{list-style:none;padding:0;margin:0}
.toc li{padding:12px 0;border-bottom:1px solid #e6e6e6}
.toc li:last-child{border-bottom:0}
.toc .t{font-weight:700;line-height:1.4}
.toc .s{display:block;font-size:15px;color:#555;margin-top:4px}
footer{border-top:1px solid #d9d9d9;color:#555;font-size:14px;line-height:1.5;padding:16px;text-align:center;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
@media (max-width:600px){body{font-size:17px}h1{font-size:23px}.abstract{text-align:left}}