:root{color-scheme:light;--paper:#f7f6f2;--white:#fffefa;--ink:#20332f;--muted:#61716b;--teal:#3e6f68;--line:#d9dfd9;--pale:#e9efeb;--accent:#c38d69;--serif:"Times New Roman","Noto Serif CJK SC","Source Han Serif SC","Songti SC",SimSun,serif;--sans:"Noto Sans CJK SC","Source Han Sans SC","Microsoft YaHei",Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(1180px,calc(100% - 88px));margin-inline:auto}.site-shell{min-height:100vh;display:flex;flex-direction:column}main{flex:1}.skip-link{position:absolute;left:16px;top:-60px;background:var(--ink);color:white;padding:10px 16px;z-index:20}.skip-link:focus{top:12px}a:focus-visible{outline:2px solid var(--teal);outline-offset:4px}
.site-header{height:92px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:15px;font-family:var(--serif);font-weight:700;font-size:23px;letter-spacing:.08em;white-space:nowrap}.brand-mark{position:relative;display:grid;grid-template-columns:repeat(2,8px);gap:4px;transform:rotate(-18deg)}.brand-mark span{display:block;width:8px;height:8px;border-radius:50%;background:var(--teal)}.brand-mark span:nth-child(2){opacity:.42}.brand-mark span:nth-child(3){opacity:.68}.brand-mark span:nth-child(4){background:var(--accent)}.main-nav{display:flex;gap:35px;align-items:center}.main-nav a{position:relative;font-size:14px;letter-spacing:.08em;color:var(--muted);padding:8px 0}.main-nav a:hover,.main-nav a[aria-current]{color:var(--ink)}.main-nav a[aria-current]:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--teal)}
.kicker{display:flex;align-items:center;gap:12px;color:var(--teal);font-size:11px;letter-spacing:.23em;font-weight:700;margin:0 0 27px}.kicker-line{width:27px;height:1px;background:var(--teal);display:inline-block}.about-hero h1,.post-header h1{font-family:var(--serif);font-weight:600;letter-spacing:.035em}
.articles-section{padding:57px 0 91px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:28px}.section-overline{font-size:11px;color:var(--teal);font-weight:700;letter-spacing:.2em;margin:0 0 8px}.section-heading h1{font-family:var(--serif);font-size:36px;font-weight:600;margin:0}.section-heading>p{margin:0 0 5px;color:var(--muted);font-size:13px}.article-grid{display:grid;grid-template-columns:1fr;gap:17px}.article-card{display:grid;grid-template-columns:290px minmax(0,1fr);min-height:202px;background:var(--white);border:1px solid var(--line);transition:box-shadow .2s ease,transform .2s ease}.article-card:hover{transform:translateY(-2px);box-shadow:0 11px 28px #19362c10}.card-image{overflow:hidden;background:var(--pale);display:block;min-height:0}.card-image img{width:100%;height:100%;min-height:202px;object-fit:cover;transition:transform .5s ease}.article-card:hover .card-image img{transform:scale(1.025)}.card-copy{padding:21px 28px 18px;display:flex;flex-direction:column;min-width:0}.eyebrow{display:flex;align-items:center;gap:11px;font-size:11px;color:var(--teal);letter-spacing:.07em}.eyebrow .dot{width:3px;height:3px;background:var(--accent);border-radius:50%}.card-copy h2{font-family:var(--serif);font-size:28px;line-height:1.35;font-weight:600;margin:11px 0 6px}.card-copy h2 a:hover{color:var(--teal)}.card-copy>p{color:var(--muted);font-size:13px;line-height:1.65;margin:0 0 10px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.card-end{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-top:auto;padding-top:7px;font-size:12px;color:var(--muted)}.card-end a{font-size:12px;color:var(--teal);font-weight:600}.card-end a span{margin-left:6px}.card-end a:hover{text-decoration:underline}
.site-footer{background:#203b35;color:#e9f0ec}.footer-inner{padding:49px 0 22px}.footer-top{display:flex;justify-content:space-between;align-items:start;gap:20px}.footer-top strong{font-family:var(--serif);font-size:21px;font-weight:500}.footer-top p{margin:10px 0 0;font-size:13px;color:#b7c9bf}.footer-top>a{font-size:13px;color:#d5e4db}.footer-top>a:hover,.filing a:hover{text-decoration:underline}.copyright{font-size:11px;color:#a9beb2;margin:38px 0 18px}.filing{border-top:1px solid #527168;text-align:center;padding-top:18px;font-size:12px;letter-spacing:.04em}.filing a{color:#dceae2;text-underline-offset:3px}
.breadcrumb{display:flex;gap:14px;align-items:center;padding-top:34px;color:var(--muted);font-size:12px}.breadcrumb a:hover{color:var(--teal);text-decoration:underline}.post{padding-bottom:94px}.post-header{max-width:800px;margin:50px auto 36px;text-align:center}.post-header h1{font-size:clamp(30px,3.3vw,45px);line-height:1.35;margin:0}.post-dek{color:var(--muted);font-size:16px;line-height:1.9;margin:19px auto 25px;max-width:680px}.post-meta{display:flex;justify-content:center;align-items:center;gap:21px;color:var(--muted);font-size:12px}.post-meta strong{color:var(--ink);font-weight:600}.meta-divider{height:13px;width:1px;background:var(--line)}.post-cover{max-width:700px;margin:0 auto}.post-cover img{width:100%;height:auto;border:1px solid var(--line)}.post-layout{display:grid;grid-template-columns:205px minmax(0,730px);gap:45px;justify-content:center;align-items:start;margin-top:55px}.post-layout.no-toc{grid-template-columns:minmax(0,730px)}.post-rail{position:sticky;top:28px;align-self:start;max-height:calc(100vh - 56px);overflow-y:auto;scrollbar-width:thin;padding:10px 0}.toc-label{font-size:11px;color:var(--teal);letter-spacing:.17em;font-weight:700;margin:0 0 16px;padding-left:15px}.toc{display:flex;flex-direction:column;border-left:1px solid var(--line)}.toc-link{display:block;border-left:2px solid transparent;margin-left:-1px;padding:9px 10px 9px 14px;color:var(--muted);font-size:13px;line-height:1.5;letter-spacing:0;transition:color .2s ease,border-color .2s ease,background .2s ease}.toc-link:hover,.toc-link[aria-current="location"]{color:var(--teal);border-left-color:var(--teal);background:#ecf2ed}.toc-link[aria-current="location"]{font-weight:700}.toc-sublevel{padding-left:27px;font-size:12px}.prose{font-size:16px;line-height:2.05;color:#34423c;min-width:0}.prose>p:first-child{font-size:18px;color:var(--ink);line-height:1.95;margin-top:0}.prose h2{font-family:var(--serif);font-size:25px;line-height:1.5;color:var(--ink);font-weight:600;margin:47px 0 17px;padding-top:11px;border-top:1px solid var(--line);scroll-margin-top:28px}.prose h3{font-size:17px;color:var(--ink);margin:30px 0 12px;scroll-margin-top:28px}.prose p{margin:0 0 24px}.prose ul,.prose ol{padding-left:1.6em;margin:0 0 27px}.prose li{padding-left:.25em;margin:6px 0}.prose strong{color:var(--ink)}.prose a{color:var(--teal);text-decoration:underline;text-underline-offset:3px}.prose a:hover{color:#244f48}.prose blockquote{border-left:3px solid var(--teal);background:#edf2ed;margin:30px 0;padding:17px 25px;color:#486259}.prose blockquote p{margin:0}.prose img{width:100%;max-width:680px;height:auto;margin-inline:auto;border:1px solid var(--line);background:white;margin:30px 0 9px}.prose p:has(>img)+p:has(>em){text-align:center;font-size:12px;color:var(--muted);margin-bottom:37px}.prose code{font-family:Consolas,"Liberation Mono",monospace;font-size:.9em;background:#e8eee9;padding:2px 5px;border-radius:3px}.prose pre{overflow-x:auto;background:#223a34;color:#e9f0ec;padding:21px 24px;border-radius:2px;line-height:1.7;margin:21px 0 30px;font-size:13px}.prose pre code{background:transparent;color:inherit;padding:0;font-size:inherit}.prose hr{border:0;border-top:1px solid var(--line);margin:43px 0}.post-end{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin:70px auto 0;max-width:975px;padding-top:22px;color:var(--muted);font-size:12px}.post-end a{color:var(--teal);font-size:13px;font-weight:600}.post-end a:hover{text-decoration:underline}
.about-hero{padding:92px 0 87px;border-bottom:1px solid var(--line)}.about-hero h1{font-size:clamp(48px,6vw,72px);margin:0 0 16px}.about-hero>p:last-child{color:var(--muted);font-size:17px;line-height:1.8;margin:0}.about-body{display:grid;grid-template-columns:250px minmax(0,1fr);gap:65px;padding:75px 0 120px}.about-index{display:flex;flex-direction:column;gap:19px;color:var(--teal);font-size:12px;letter-spacing:.08em;padding-top:18px}.about-sections{border-top:1px solid var(--line)}.about-sections section{display:grid;grid-template-columns:55px minmax(0,1fr);gap:14px;border-bottom:1px solid var(--line);padding:37px 0}.about-number{font-family:var(--serif);font-size:21px;color:var(--accent)}.about-sections h2{font-family:var(--serif);font-size:26px;font-weight:600;margin:0 0 14px}.about-sections p{max-width:690px;color:var(--muted);font-size:15px;line-height:2;margin:0}
@media(max-width:900px){.wrap{width:min(100% - 48px,1180px)}.article-card{grid-template-columns:240px minmax(0,1fr)}.post-layout{display:block;max-width:750px;margin-inline:auto}.post-rail{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:10px;max-height:none;overflow-x:auto;overflow-y:hidden;background:var(--paper);border-bottom:1px solid var(--line);padding:9px 0;margin-bottom:27px}.toc-label{margin:0;padding:0 10px 0 0;flex:none}.toc{display:flex;flex-direction:row;gap:4px;border:0}.toc-link{flex:none;max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border-left:0;border-bottom:2px solid transparent;margin:0;padding:7px 9px}.toc-link:hover,.toc-link[aria-current="location"]{border-left-color:transparent;border-bottom-color:var(--teal)}.toc-sublevel{padding-left:9px}.prose h2,.prose h3{scroll-margin-top:78px}.about-body{grid-template-columns:190px 1fr;gap:35px}}
@media(max-width:650px){.wrap{width:calc(100% - 36px)}.site-header{height:72px}.brand{font-size:19px;gap:10px}.brand-mark{grid-template-columns:repeat(2,6px);gap:3px}.brand-mark span{width:6px;height:6px}.main-nav{gap:18px}.main-nav a{font-size:13px}.articles-section{padding:38px 0 70px}.section-heading{display:block;margin-bottom:22px}.section-heading h1{font-size:31px}.section-heading>p{margin-top:9px}.article-grid{gap:13px}.article-card{grid-template-columns:34% minmax(0,1fr);min-height:166px}.card-image img{min-height:166px}.card-copy{padding:14px 13px 12px}.eyebrow{font-size:10px;gap:6px}.card-copy h2{font-size:20px;line-height:1.28;margin:8px 0 5px}.card-copy>p{font-size:11px;line-height:1.55;-webkit-line-clamp:2;margin-bottom:5px}.card-end{font-size:10px;gap:5px;padding-top:3px}.card-end a{font-size:10px}.card-end a span{margin-left:2px}.footer-inner{padding-top:39px}.footer-top strong{font-size:18px}.footer-top p{line-height:1.6}.breadcrumb{padding-top:24px}.post{padding-bottom:70px}.post-header{margin:49px auto 34px}.post-header h1{font-size:31px}.post-dek{font-size:14px}.post-layout{margin-top:40px}.prose{font-size:15px;line-height:1.9}.prose>p:first-child{font-size:16px}.prose h2{font-size:23px;margin-top:42px}.prose h3{font-size:16px}.prose pre{font-size:12px;padding:17px}.post-end{margin-top:50px}.about-hero{padding:67px 0}.about-body{display:block;padding:47px 0 80px}.about-index{display:none}.about-sections section{grid-template-columns:38px 1fr;padding:30px 0}.about-sections h2{font-size:24px}.about-sections p{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

.prose .table-scroll{max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;margin:22px 0 30px;border-top:2px solid var(--teal);border-bottom:1px solid var(--line);scrollbar-color:var(--teal) var(--pale)}
.prose .table-scroll table{width:100%;min-width:560px;border-collapse:collapse;font-size:14px;line-height:1.65;text-align:left}
.prose .table-scroll th,.prose .table-scroll td{padding:11px 15px;border-bottom:1px solid var(--line);vertical-align:top}
.prose .table-scroll th{background:var(--pale);color:var(--ink);font-weight:700}
.prose .table-scroll tbody tr:nth-child(even){background:#f0f3ee}
.prose .table-scroll tbody tr:last-child td{border-bottom:0}