:root{color-scheme:light;--paper:#fbf7f2;--ink:#332b29;--muted:#786d67;--line:#e7ddd3;--accent:#8b373b;--soft:#f5e9e6;font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:32px}body.public-content{margin:0;background:var(--paper);color:var(--ink);font-size:16px;line-height:1.9;overflow-wrap:anywhere}a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid #b9745c;outline-offset:5px;border-radius:3px}.skip-link{position:absolute;top:-90px;left:18px;padding:10px 20px;background:#fff;z-index:5}.skip-link:focus{top:12px}.content-header{border-bottom:1px solid var(--line);background:#fffdf9}.header-inner{max-width:1180px;margin:auto;padding:22px 34px;display:flex;align-items:center;justify-content:space-between;gap:20px}.content-brand{display:flex;align-items:center;gap:10px;flex-shrink:0;font-size:24px;font-weight:700;text-decoration:none;color:var(--accent);letter-spacing:1px}.content-brand img{object-fit:contain}.content-header nav{display:flex;gap:25px;flex-wrap:wrap}.content-header nav a{font-size:14px;text-decoration:none;color:var(--muted)}.content-header nav a[aria-current]{color:var(--accent);font-weight:700}.public-content main{max-width:1180px;margin:auto;padding:24px 34px 72px}.breadcrumbs{font-size:13px;color:var(--muted)}.breadcrumbs a{text-decoration:none}.content-hero{padding:36px 0 34px;max-width:900px}.eyebrow{font-size:12px;color:var(--accent);letter-spacing:3px;font-weight:700;margin:0 0 12px}h1{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:clamp(28px,3.4vw,43px);line-height:1.5;letter-spacing:.3px;margin:0;font-weight:700;text-wrap:pretty}.content-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:32px;align-items:start}.content-layout aside{position:sticky;top:25px}.page-toc{border-top:2px solid #b97c68;border-bottom:1px solid var(--line);padding:13px 0;font-size:14px}.page-toc summary{cursor:pointer;font-weight:700;color:#684e46}.page-toc ol{list-style:none;margin:15px 0 0;padding:0;max-height:62vh;overflow:auto}.page-toc li{margin:10px 0;line-height:1.6}.page-toc li.subtopic{padding-left:12px;font-size:12px}.page-toc a{color:var(--muted);text-decoration:none}.back-home{display:inline-block;margin-top:18px;font-size:12px;text-decoration:none}.reading{background:#fffdf9;border:1px solid var(--line);border-radius:16px;padding:38px 44px;min-width:0;box-shadow:0 6px 24px #5c362006}.reading>p{margin:0 0 21px}.reading>p:first-child{font-size:17px;line-height:2}.reading h2{font-size:23px;line-height:1.6;margin:45px 0 20px;padding-top:8px;color:#743a36;scroll-margin-top:24px}.reading h3{font-size:18px;line-height:1.75;margin:29px 0 15px;color:#49332e;scroll-margin-top:24px}.reading h2+h3{margin-top:20px}.reading ol{padding-left:26px;margin:0 0 25px}.reading li{margin:10px 0;padding-left:3px}.sample-notice{padding:19px 21px!important;border-left:3px solid #b67b61;background:#f8eee7;border-radius:0 8px 8px 0;font-size:15px!important;line-height:1.9!important}.observation-table{margin:23px 0 30px}table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:14px;line-height:1.9}caption{text-align:left;font-weight:700;color:#6b5148;margin-bottom:12px}th,td{padding:13px 12px;text-align:left;border:1px solid var(--line);vertical-align:top}thead{background:#f3e9df}th:first-child{width:21%}tbody th{background:#fbf4ec;font-weight:600}.content-actions{display:flex;gap:12px;flex-wrap:wrap;margin:36px 0}.content-button{display:flex;justify-content:center;align-items:center;gap:10px;border:1px solid #b78179;border-radius:8px;padding:12px 21px;font-size:15px;line-height:1.6;text-decoration:none;min-height:49px}.content-button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.related-links{display:flex;flex-wrap:wrap;gap:8px 18px;border-top:1px solid var(--line);padding-top:22px;margin-top:30px;font-size:13px}.related-links span{color:var(--muted)}.content-footer{max-width:1112px;margin:0 auto;padding:23px 0 35px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.content-footer a{text-decoration:none}
@media(max-width:899px){.content-layout{grid-template-columns:minmax(0,1fr);gap:22px}.content-layout aside{position:static;display:flex;gap:14px;align-items:start;justify-content:space-between}.page-toc{width:min(100%,560px);padding:10px 0}.page-toc ol{max-height:48vh}.back-home{flex-shrink:0;margin-top:13px}.reading{padding:30px}.content-footer{margin:0 30px}.header-inner{padding:19px 28px}.content-header nav{gap:18px}}
@media(max-width:520px){.header-inner{padding:17px 20px;display:block}.content-brand{font-size:22px}.content-header nav{gap:12px 23px;margin-top:13px}.content-header nav a{font-size:13px}.public-content main{padding:18px 18px 45px}.content-hero{padding:25px 1px 26px}h1{font-size:28px;line-height:1.55}.content-layout{gap:18px}.content-layout aside{display:block}.back-home{display:none}.page-toc{font-size:14px}.reading{border-radius:12px;padding:24px 20px;font-size:15px;line-height:1.95}.reading>p:first-child{font-size:16px}.reading h2{font-size:21px;margin-top:35px}.reading h3{font-size:17px;margin-top:26px}.sample-notice{padding:15px!important;font-size:14px!important}.content-actions{display:grid;gap:10px}.content-button{font-size:15px;padding:13px 12px}.content-footer{margin:0 20px;gap:15px;padding-bottom:25px}table{font-size:13px;line-height:1.85}th,td{padding:10px 7px}th:first-child{width:22%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}