:root { color-scheme: light; --ink:#20201f; --muted:#6b6d70; --line:#d8d8d4; --paper:#f7f7f4; --panel:#ecece8; --accent:#0f5ca8; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; background:var(--paper); color:var(--ink); font-family:Georgia,"Noto Serif CJK SC","Songti SC",serif; }
a { color:inherit; }
.site-header { min-height:58px; padding:0 28px; display:flex; align-items:center; justify-content:space-between; gap:24px; background:#33312d; color:#fff; font-family:Arial,"PingFang SC",sans-serif; }
.brand { display:flex; align-items:baseline; gap:10px; text-decoration:none; font-weight:700; }
.brand small { color:#d3d1cb; font-size:10px; letter-spacing:.12em; text-transform:uppercase; }
.site-header nav { display:flex; gap:24px; font-size:13px; }
.site-header nav a { color:#e7e5df; text-decoration:none; }
.site-header nav a:hover,.site-header nav a:focus-visible { color:#fff; text-decoration:underline; }
.reading-progress { position:sticky; top:0; z-index:8; height:3px; background:transparent; }
.reading-progress span { display:block; width:0; height:100%; background:var(--accent); }
main { width:min(1280px,calc(100% - 48px)); margin:0 auto; display:grid; grid-template-columns:250px minmax(0,760px); justify-content:center; gap:72px; padding:72px 0 100px; }
.contents { position:sticky; top:36px; align-self:start; max-height:calc(100vh - 70px); overflow:auto; padding-right:20px; border-right:1px solid var(--line); font-family:Arial,"PingFang SC",sans-serif; }
.contents>p { margin:0 0 14px; color:var(--muted); font-size:11px; font-weight:700; letter-spacing:.15em; text-transform:uppercase; }
.contents ol { margin:0; padding:0; list-style:none; }
.contents li { margin:0 0 9px; font-size:12px; line-height:1.45; }
.contents li.level-3 { padding-left:12px; color:var(--muted); font-size:11px; }
.contents a { text-decoration:none; }
.contents a:hover,.contents a:focus-visible { color:var(--accent); text-decoration:underline; }
article { min-width:0; }
.paper-header { padding-bottom:44px; border-bottom:1px solid var(--line); }
.kicker { margin:0 0 18px; color:var(--accent); font-family:Arial,"PingFang SC",sans-serif; font-size:11px; font-weight:700; letter-spacing:.16em; text-transform:uppercase; }
h1 { margin:0; max-width:690px; font-size:clamp(48px,7vw,82px); line-height:1.02; letter-spacing:-.055em; }
.subtitle { margin:24px 0 0; color:#454649; font-size:clamp(19px,2.6vw,28px); line-height:1.45; }
.paper-meta { display:flex; flex-wrap:wrap; gap:9px 20px; margin-top:28px; color:var(--muted); font-family:Arial,"PingFang SC",sans-serif; font-size:11px; }
.editor-note { margin:18px 0 0; padding:12px 14px; background:var(--panel); color:var(--muted); font-family:Arial,"PingFang SC",sans-serif; font-size:11px; line-height:1.6; }
.paper-body h2 { scroll-margin-top:30px; margin:80px 0 24px; padding-top:20px; border-top:1px solid var(--line); font-size:31px; line-height:1.3; letter-spacing:-.025em; }
.paper-body h3 { scroll-margin-top:30px; margin:48px 0 16px; font-size:22px; line-height:1.4; }
.paper-body h4 { margin:32px 0 12px; color:var(--muted); font-family:Arial,"PingFang SC",sans-serif; font-size:13px; }
.paper-body p { margin:0 0 19px; font-size:17px; line-height:1.98; text-align:justify; text-wrap:pretty; }
.revision-new { color:#0f766e; }
.paper-body p a,.references a { color:var(--accent); overflow-wrap:anywhere; }
.paper-body .formula { margin:30px 0; padding:25px; border:1px solid var(--line); background:#fff; text-align:center; font-family:Georgia,serif; font-size:34px; letter-spacing:.08em; }
.paper-table { width:calc(100% + 120px); margin:42px 0 48px -60px; overflow-x:auto; }
.paper-table table { width:100%; min-width:720px; border-collapse:collapse; background:#fff; font-family:Arial,"PingFang SC",sans-serif; }
.paper-table th,.paper-table td { padding:15px 14px; border:1px solid var(--line); vertical-align:top; text-align:left; font-size:12px; line-height:1.65; }
.paper-table th { background:#33312d; color:#fff; font-size:11px; letter-spacing:.04em; }
.paper-table figcaption { margin-top:8px; color:var(--muted); font-family:Arial,"PingFang SC",sans-serif; font-size:11px; }
.appendix-heading { font-family:Arial,"PingFang SC",sans-serif; }
.acknowledgements { margin-top:80px; padding:0 24px 20px; border:1px solid var(--line); background:#fff; }
.acknowledgements h2 { margin-top:0; border-top:0; }
.references { margin:0; padding-left:24px; }
.references li { margin:0 0 13px; padding-left:6px; font-family:Arial,"PingFang SC",sans-serif; font-size:12px; line-height:1.65; overflow-wrap:anywhere; }
footer { padding:25px 28px; display:flex; justify-content:space-between; gap:20px; border-top:1px solid var(--line); color:var(--muted); font-family:Arial,"PingFang SC",sans-serif; font-size:12px; }
footer a { color:var(--ink); }
@media(max-width:960px){ main{grid-template-columns:1fr;gap:30px;width:min(760px,calc(100% - 32px));padding-top:46px}.contents{position:static;max-height:none;padding:18px;border:1px solid var(--line);background:var(--panel)}.contents ol{columns:2}.paper-table{width:100%;margin-left:0} }
@media(max-width:640px){ .site-header{padding:0 16px}.brand small{display:none}.site-header nav{gap:13px}main{width:min(100% - 26px,760px)}.contents ol{columns:1}h1{font-size:48px}.paper-body h2{margin-top:60px;font-size:27px}.paper-body h3{font-size:20px}.paper-body p{font-size:16px;line-height:1.9;text-align:left}footer{padding:20px 16px;flex-direction:column} }