:root{--bg:#faf9f6;--paper:#fff;--ink:#1a201d;--muted:#7b857f;--line:#e7e8e2;--accent:#0f6e56;--accent-soft:#eaf4ef;--tag:#f1f3ef}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.85 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:880px;margin:0 auto;padding:0 24px}
header.top{border-bottom:1px solid var(--line);background:var(--paper)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;min-height:66px}
.brand{font-size:19px;font-weight:700;letter-spacing:-.5px;color:var(--ink)}
.brand em{font-style:normal;background:var(--accent);color:#fff;padding:3px 8px;border-radius:6px;margin-right:9px;font-size:13px;letter-spacing:.5px;vertical-align:2px}
.nav{display:flex;gap:24px;font-size:14px;align-items:center;position:relative}
.nav>a{color:var(--muted);padding:5px 0;position:relative;transition:color .15s}
.nav>a:hover{color:var(--ink);text-decoration:none}
.nav>a.on{color:var(--ink);font-weight:600}
.nav>a.on::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent);border-radius:2px}
.tocmenu{position:relative}
.tocmenu>summary{list-style:none;cursor:pointer;color:var(--muted);font-size:14px;padding:5px 0;transition:color .15s}
.tocmenu>summary::-webkit-details-marker{display:none}
.tocmenu>summary::after{content:" ▾";font-size:10px}
.tocmenu>summary:hover{color:var(--ink)}
.tocmenu[open]>summary{color:var(--accent)}
.tocmenu .menu{position:absolute;right:-14px;top:calc(100% + 14px);width:540px;max-width:calc(100vw - 48px);max-height:min(64vh,560px);overflow-y:auto;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:16px 18px;box-shadow:0 10px 34px rgba(24,38,30,.11);z-index:30;display:grid;grid-template-columns:1fr 1fr;gap:2px 20px}
.tocmenu .menu::-webkit-scrollbar{width:6px}.tocmenu .menu::-webkit-scrollbar-thumb{background:#d8ded7;border-radius:3px}
.tocmenu .menu a{display:block;padding:6px 9px;border-radius:6px;color:#4b5751;font-size:13px;line-height:1.45}
.tocmenu .menu a:hover{background:var(--accent-soft);color:var(--accent);text-decoration:none}
.tocmenu .menu a.lv3{padding-left:20px;font-size:12px;color:var(--muted)}
.subbar{border-bottom:1px solid var(--line);background:#f6f7f3;font-size:12.5px;color:var(--muted)}
.subbar .wrap{padding-top:9px;padding-bottom:9px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;letter-spacing:.2px}
main{padding:40px 0 68px}
.hero{margin-bottom:30px;padding-bottom:26px;border-bottom:1px solid var(--line)}
.kicker{font-size:11px;letter-spacing:2.4px;color:var(--accent);font-weight:700;text-transform:uppercase}
h1{font-size:37px;line-height:1.28;letter-spacing:-1.2px;margin:12px 0 14px;font-weight:700}
.meta{display:flex;gap:18px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);margin:0 0 18px}
.meta b{color:#4b5751;font-weight:600}
.lede{font-size:16.5px;line-height:1.8;color:#3c4a43;background:var(--accent-soft);border-left:3px solid var(--accent);padding:15px 19px;border-radius:0 8px 8px 0;margin:0}
.paper{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:42px 46px}
.paper h2{position:relative;font-size:22px;margin:46px 0 18px;padding:0 0 12px 15px;border-bottom:1px solid var(--line);letter-spacing:-.5px;font-weight:700;line-height:1.4}
.paper h2::before{content:"";position:absolute;left:0;top:5px;width:4px;height:20px;background:var(--accent);border-radius:2px}
.paper h2:first-of-type{margin-top:0}
.paper h3{font-size:17px;margin:28px 0 10px;color:var(--accent);font-weight:600}
.paper h4{font-size:15.5px;margin:20px 0 8px;font-weight:600}
.paper p{margin:13px 0}
.paper ul,.paper ol{padding-left:24px}.paper li{margin:8px 0}
.paper blockquote{margin:18px 0;padding:12px 18px;background:#f7f8f5;border-left:3px solid #cfd8d1;color:#54605b;font-size:15px;border-radius:0 6px 6px 0}
.paper blockquote p{margin:5px 0}
.paper code{background:#eef1ed;color:#a03a3a;padding:1px 5px;border-radius:4px;font-size:13px}
.paper hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.tw{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:9px}
table{width:100%;border-collapse:collapse;font-size:13.5px;line-height:1.65}
th{background:#f4f6f2;text-align:left;padding:11px 12px;font-weight:700;border-bottom:1px solid #dfe4dc;color:#39443e}
td{padding:10px 12px;border-bottom:1px solid #eef0ec;vertical-align:top}
tr:last-child td{border-bottom:0}tbody tr:hover td{background:#fafbf9}
td.num{text-align:center;color:var(--accent);font-weight:600;width:40px}
.cardlist{display:grid;gap:14px}
.card{display:block;background:var(--paper);border:1px solid var(--line);border-radius:11px;padding:20px 22px;transition:.15s}
.card:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-1px)}
.card .d{font-size:12.5px;color:var(--accent);font-weight:700;letter-spacing:.5px}
.card .t{font-size:19px;font-weight:700;color:var(--ink);margin:6px 0}
.card .m{font-size:14px;color:var(--muted);line-height:1.65}
.card .n{font-size:12px;color:var(--muted);margin-top:8px}
.search{width:100%;padding:12px 16px;border:1px solid var(--line);border-radius:9px;font-size:15px;background:var(--paper);margin-bottom:18px}
.tag{display:inline-block;background:var(--tag);border-radius:20px;padding:3px 11px;font-size:12px;color:var(--muted);margin-right:6px}
footer{border-top:1px solid var(--line);background:var(--paper);font-size:12.5px;color:var(--muted)}
footer .wrap{padding-top:20px;padding-bottom:28px}
.pager{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);font-size:13.5px}
.pager a{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:8px 14px;transition:.15s}
.pager a:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}
@media(max-width:880px){.paper{padding:28px 24px}h1{font-size:30px}.tocmenu .menu{right:-70px;grid-template-columns:1fr;width:330px}}
@media(max-width:640px){.wrap{padding:0 16px}.paper{padding:22px 17px}h1{font-size:26px}.top .wrap{min-height:58px}.nav{gap:15px}.tocmenu .menu{right:-90px;width:290px;max-height:70vh}table{font-size:12px}th,td{padding:8px 8px}.pager{flex-wrap:wrap}}