*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:#f6f4ee;color:#20382b;font-family:system-ui,-apple-system,"Microsoft YaHei",sans-serif;line-height:1.85}a{color:#176345;text-decoration-thickness:1px;text-underline-offset:4px}a:hover{color:#a4521e}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #cc8c32;outline-offset:4px}.top{position:sticky;top:0;z-index:5;background:rgba(246,244,238,.97);border-bottom:1px solid #d9e0d7;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px max(22px,calc((100vw - 1280px)/2))}.brand{font-size:22px;font-weight:800;letter-spacing:.04em;text-decoration:none}.top nav{display:flex;gap:20px;font-size:14px}.wrap{max-width:1280px;margin:auto;padding:38px 24px 70px}.hero{border-bottom:1px solid #cdd6c9;padding:10px 0 32px}.kicker{color:#697950;font-size:13px;font-weight:700;letter-spacing:.12em}.hero h1{font-family:Georgia,"Noto Serif CJK SC",serif;font-size:clamp(32px,4.6vw,54px);line-height:1.3;letter-spacing:-.025em;max-width:960px;margin:12px 0 18px}.hero .deck{max-width:880px;color:#526355}.badge{display:inline-block;font-size:12px;color:#745229;background:#f0e4c9;border:1px solid #e0d0ae;border-radius:4px;padding:3px 9px}.metrics{display:flex;flex-wrap:wrap;gap:26px;margin:24px 0}.metrics strong{display:block;font:700 30px/1.3 Georgia,serif;color:#18583d}.metrics span{font-size:13px;color:#5a6b60}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn{display:inline-block;border:1px solid #256343;border-radius:5px;padding:9px 16px;text-decoration:none;font-weight:650}.btn.primary{background:#205d40;color:#fff}.layout{display:grid;grid-template-columns:255px minmax(0,1fr);gap:46px;margin-top:32px}.side{align-self:start;position:sticky;top:90px;font-size:14px;max-height:calc(100vh - 110px);overflow:auto;padding-right:12px}.side summary{font-weight:750;font-size:16px;cursor:pointer}.side ol{padding-left:20px}.side li{margin:9px 0}.side input{width:100%;padding:10px;border:1px solid #bbc9bd;border-radius:4px;margin:12px 0;background:white;font:inherit}.side a{display:block;text-decoration:none;line-height:1.55}.side a[aria-current="page"]{font-weight:800;color:#8a541b}.article{min-width:0;background:white;border:1px solid #dde3d9;padding:32px 36px;border-radius:8px;color:#26392d}.article p{margin:0 0 18px;overflow-wrap:anywhere}.article h2{font-size:24px;line-height:1.5;margin:34px 0 18px;color:#1e5539;border-top:1px solid #e1e7dd;padding-top:24px}.article h2:first-child{margin-top:0;border-top:0;padding-top:0}.article h3{font-size:20px}.table-scroll{max-width:100%;overflow:auto;margin:20px 0 30px;border:1px solid #d5ddd1;border-radius:4px}table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.65;min-width:500px}caption{text-align:left;font-weight:750;background:#f0f5ed;padding:12px 14px;caption-side:top;color:#254831}th,td{padding:11px 13px;text-align:left;vertical-align:top;border:1px solid #dfe5dc}th{background:#eaf0e6;color:#24452f}tbody tr:nth-child(even){background:#fafbf8}td p,th p{margin:0!important}.table-title{font-weight:750}.refs{white-space:nowrap;font-size:.85em}figure{margin:26px 0;border:1px solid #e0e5dc;padding:12px;border-radius:4px;background:white}figure img{width:100%;height:auto;max-height:1050px;object-fit:contain;display:block}figcaption{font-size:13px;color:#50604e;line-height:1.8;margin:12px 2px 2px;overflow-wrap:anywhere}.reference{padding-top:18px;border-top:1px solid #e0e4dc}.page-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px}.page-nav a{border:1px solid #c9d5c7;padding:15px;text-decoration:none;border-radius:5px;background:#fbfcf8;font-size:14px}.page-nav small{display:block;color:#6d7768}.catalog{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:30px 0}.part{border:1px solid #d6dfd1;border-radius:7px;background:white;padding:24px}.part h2{font-size:20px;margin:0 0 16px}.part ol{padding-left:24px;margin:0}.part li{margin:12px 0}.part a{text-decoration:none}.fullchapter{margin-top:55px}.fullchapter>h1{font-size:30px}.foot{max-width:1280px;margin:0 auto;padding:26px 24px 40px;border-top:1px solid #d5ddcf;color:#657260;font-size:13px}.note{font-size:14px;color:#6b674f}.crumb{font-size:13px;color:#697764;margin-bottom:20px}.crumb a{margin-right:8px}.empty{display:none}.share{font-size:14px}.print{cursor:pointer;background:transparent;font:inherit}section{scroll-margin-top:90px}@media(max-width:860px){.layout{grid-template-columns:1fr;gap:22px}.side{position:static;max-height:none;padding:0;border:1px solid #d2dccc;border-radius:6px;padding:12px 16px}.side nav{max-height:270px;overflow:auto}.article{padding:24px 18px}.wrap{padding:26px 16px 44px}.catalog{grid-template-columns:1fr}.top{padding:12px 16px}.top nav{gap:12px;font-size:12px}.hero h1{font-size:34px}.page-nav{grid-template-columns:1fr}.metrics{gap:22px}.article h2{font-size:22px}}@media print{.top,.side,.actions,.page-nav,.share,.print,.catalog{display:none!important}.layout{display:block}.article{border:0;padding:0}.wrap{max-width:none;padding:0}.hero{padding:0}.table-scroll{overflow:visible}table{min-width:0;font-size:10px}figure,table{break-inside:avoid}.fullchapter{break-before:page}body{background:white;color:black}.foot{font-size:10px}}