:root{--paper:#FBFAF7;--ink:#1C1A17;--muted:#5C574C;--faint:#8A8474;--line:#E5E0D5;--accent:#C2410C;--accent-soft:#FFF7ED}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.page-wrap{max-width:880px;margin:0 auto;padding:0 20px 40px}.site-header{position:-webkit-sticky;position:sticky;top:0;background:var(--paper);border-bottom:2px solid var(--ink);z-index:50}.header-inner{max-width:880px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:20px}.logo{font-weight:800;font-size:18px;letter-spacing:.5px;white-space:nowrap}.logo-dot{color:var(--accent);margin:0 2px}.main-nav{display:flex;gap:16px;font-size:14px;color:var(--muted)}.main-nav a:hover{color:var(--ink)}.header-inner .search{margin-left:auto;width:220px}.search{position:relative}.search-input{display:flex;align-items:center;gap:8px;background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:8px 12px;color:var(--faint)}.search.hero .search-input{border-color:var(--ink);box-shadow:3px 3px 0 var(--ink);padding:11px 14px}.search-input input{border:none;outline:none;flex:1 1;font-size:14px;background:transparent;color:var(--ink);min-width:0}.search-input kbd{font-size:11px;border:1px solid var(--line);border-radius:5px;padding:1px 6px;color:var(--faint);font-family:inherit}.search-results{position:absolute;top:calc(100% + 6px);left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(28,26,23,.12);overflow:hidden;z-index:60;text-align:left}.search-item{display:block;padding:10px 14px;border-bottom:1px solid var(--line)}.search-item:last-child{border-bottom:none}.search-item:hover{background:var(--accent-soft)}.search-item-title{display:block;font-size:14px;font-weight:600;line-height:1.5}.search-item-meta{display:block;font-size:11px;color:var(--faint);margin-top:2px}.search-empty{padding:12px 14px;font-size:13px;color:var(--faint)}.hero{padding:34px 0 8px}.kicker{font-size:12px;letter-spacing:2px;color:var(--accent);font-weight:700}.hero-title{font-size:34px;line-height:1.3;font-weight:800;margin:10px 0}.hero-sub{font-size:15px;color:var(--muted);line-height:1.8;max-width:560px}.hero .search{margin:20px 0 12px;max-width:560px}.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}.chip{font-size:12px;border:1px solid #d8d2c4;background:#fff;border-radius:99px;padding:4px 11px;color:var(--muted)}.chip.on{border-color:var(--ink)}.chip.on,.featured-card{background:var(--ink);color:var(--paper)}.featured-card{display:block;border-radius:14px;padding:24px;margin:18px 0 6px}.featured-tag{font-size:12px;color:#FDBA74;font-weight:700;letter-spacing:1px}.featured-card h2{font-size:22px;line-height:1.5;margin:10px 0}.featured-card p{font-size:14px;color:#CFC9BC;line-height:1.8}.card-meta{font-size:11.5px;color:var(--faint);margin-top:10px}.featured-card .card-meta{color:#A39C8B}.sec-title{font-size:15px;font-weight:800;letter-spacing:1px;margin:26px 0 6px}.article-row{display:flex;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}.row-thumb{width:60px;height:60px;flex:none;border-radius:9px;background:linear-gradient(135deg,#FDBA74,var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:13px}.article-row h3{font-size:16px;line-height:1.55}.article-row p{font-size:13px;color:var(--muted);line-height:1.65;margin-top:3px}.article-row:hover h3{color:var(--accent)}.load-more-wrap{text-align:center;padding:22px 0 6px}.load-more-btn{font:inherit;font-size:14px;font-weight:600;color:var(--ink);background:#fff;border:1.5px solid var(--ink);border-radius:99px;padding:9px 34px;cursor:pointer;box-shadow:3px 3px 0 var(--ink)}.load-more-btn:hover{background:var(--accent-soft)}.load-more-btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}.load-more-count{font-size:12px;color:var(--faint);margin-top:10px}.empty-note{color:var(--faint);font-size:14px;padding:14px 0}.method{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}.step{flex:1 1;min-width:180px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px}.step i{font-style:normal;color:var(--accent);font-weight:800;font-size:16px}.step b{font-size:13.5px;display:block;margin:5px 0 4px}.step p{font-size:12px;color:var(--muted);line-height:1.65}.ad-slot{border:1.5px dashed #b9b2a0;border-radius:8px;color:var(--faint);font-size:12px;text-align:center;padding:16px 10px;margin:18px 0;background:#F4F1EA;letter-spacing:.5px}ins.ad-slot{border:none;padding:0;background:transparent}.article{padding-top:6px}.crumb{font-size:12px;color:var(--faint);padding:14px 0 4px}.crumb-cat{color:var(--accent);font-weight:600}.article-title{font-size:27px;line-height:1.45;font-weight:800;margin:10px 0}.article-dek{font-size:15px;color:var(--muted);line-height:1.8;border-left:3px solid var(--accent);padding-left:13px;margin:12px 0}.byline{gap:9px;font-size:12.5px;color:var(--faint);padding:11px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);flex-wrap:wrap}.avatar,.byline{display:flex;align-items:center}.avatar{width:27px;height:27px;border-radius:50%;background:var(--ink);color:#fff;justify-content:center;font-size:13px;font-weight:700}.byline-author{color:var(--ink);font-weight:600}.source-card{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--accent-soft);border:1px solid #fdba74;border-radius:10px;padding:12px 14px;font-size:13px;margin:16px 0}.source-card strong{color:#9A3412}.source-go{color:var(--accent);font-weight:700;white-space:nowrap}.article-cols{display:flex;gap:26px;align-items:flex-start}.toc{flex:none;width:150px;font-size:12.5px;line-height:2.2;border-right:1px solid var(--line);padding-right:14px;position:-webkit-sticky;position:sticky;top:76px}.toc a{display:block;color:var(--faint)}.toc a:hover{color:var(--accent)}.toc-title{color:var(--ink);font-weight:800;letter-spacing:1px;font-size:12px}.article-body{flex:1 1;min-width:0;font-size:16px;line-height:1.95;color:#33302A}.article-body p{margin-bottom:14px}.article-body h2{font-size:20px;color:var(--ink);margin:26px 0 12px;padding-left:10px;border-left:4px solid var(--accent);line-height:1.5}.article-body ul{margin:0 0 14px 20px}.article-body li{margin-bottom:6px}.article-body strong{color:var(--ink)}.article-body blockquote{border-left:3px solid #d8d2c4;padding:4px 0 4px 13px;color:var(--muted);margin:14px 0}.article-body pre{background:#FAF8F3;border:1px solid var(--line);border-radius:10px;padding:14px 18px;font-size:15px;line-height:1.7;overflow-x:auto;margin:0 0 14px;font-family:inherit;white-space:pre-wrap}.article-body code{background:#F2EFE8;padding:1px 5px;border-radius:4px;font-size:.92em}.key-point{background:var(--ink);color:var(--paper);border-radius:10px;padding:15px 17px;margin:14px 0}.prev-next{display:flex;gap:10px;margin-top:22px}.prev-next>div{flex:1 1;border:1px solid var(--line);border-radius:10px;background:#fff;padding:12px}.prev-next small{font-size:10.5px;color:var(--faint);letter-spacing:1px}.prev-next p{font-size:13px;font-weight:700;line-height:1.55;margin-top:4px}.pn-next{text-align:right}.static-page{padding-top:22px;font-size:15.5px;line-height:1.9;color:#33302A;max-width:680px}.static-page h1{font-size:26px;color:var(--ink);margin-bottom:14px}.static-page h2{font-size:18px;color:var(--ink);margin:22px 0 8px}.static-page p{margin-bottom:12px}.static-page a{color:var(--accent);font-weight:600}.site-footer{border-top:1px solid var(--line);margin-top:20px}.footer-inner{max-width:880px;margin:0 auto;padding:16px 20px;font-size:12px;color:var(--faint);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}.footer-inner nav{display:flex;gap:14px}.footer-inner a:hover{color:var(--ink)}@media (max-width:760px){.hero-title{font-size:26px}.article-title{font-size:22px}.header-inner .search,.toc{display:none}.featured-card h2{font-size:19px}}.article-figure{margin:20px 0}.article-figure img{width:100%;height:auto;border:1px solid var(--line);border-radius:12px;background:#fff}.article-figure figcaption{text-align:center;font-size:12.5px;color:var(--faint);margin-top:8px;line-height:1.6}