:root{--bg:#fff;--bg-soft:#f7f9fb;--fg:#14181d;--fg-muted:#5b6672;--fg-light:#8b96a3;--line:#e4e9ef;--brand:#0b5fa5;--brand-soft:#eaf2fa;--brand-dark:#084a80;--code-bg:#f4f6f9;--radius:10px;--maxw:1100px;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;font-size:16px;line-height:1.72}a{color:var(--brand);text-decoration:none}a:hover{color:var(--brand-dark)}img{max-width:100%;display:block}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}.site-header{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:50;background:#ffffffeb;position:sticky;top:0}.nav{align-items:center;gap:32px;height:64px;display:flex}.logo{letter-spacing:-.3px;color:var(--fg);align-items:baseline;gap:8px;font-size:19px;font-weight:800;display:flex}.logo b{color:var(--brand)}.logo small{color:var(--fg-light);letter-spacing:.5px;font-size:11px;font-weight:500}.nav-links{gap:26px;margin-left:auto;font-size:15px;display:flex}.nav-links a{color:var(--fg-muted);font-weight:500}.nav-links a:hover,.nav-links a.active{color:var(--brand)}.site-footer{border-top:1px solid var(--line);color:var(--fg-muted);margin-top:80px;padding:36px 0 44px;font-size:14px}.footer-grid{flex-wrap:wrap;justify-content:space-between;gap:40px;display:flex}.footer-col h4{color:var(--fg);letter-spacing:.3px;margin-bottom:10px;font-size:13px}.footer-col a{color:var(--fg-muted);margin-bottom:6px;font-size:13.5px;display:block}.copyright{border-top:1px solid var(--line);color:var(--fg-light);margin-top:32px;padding-top:18px;font-size:12.5px}.prose{font-size:16.5px;line-height:1.85}.prose h2{letter-spacing:-.2px;border-bottom:1px solid var(--line);margin:38px 0 14px;padding-bottom:6px;font-size:22px}.prose h3{margin:28px 0 10px;font-size:18px}.prose p{margin:14px 0}.prose ul,.prose ol{margin:14px 0 14px 22px}.prose li{margin:6px 0}.prose blockquote{border-left:3px solid var(--brand);background:var(--bg-soft);color:var(--fg-muted);border-radius:0 var(--radius) var(--radius) 0;margin:18px 0;padding:12px 18px}.prose table{border-collapse:collapse;width:100%;margin:18px 0;font-size:14.5px}.prose th{background:var(--brand-soft);text-align:left;border:1px solid var(--line);padding:9px 12px;font-weight:700}.prose td{border:1px solid var(--line);vertical-align:top;padding:9px 12px}.prose code{background:var(--code-bg);border-radius:4px;padding:2px 6px;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.9em}.prose pre{background:var(--code-bg);border-radius:var(--radius);margin:18px 0;padding:16px;font-size:13.5px;line-height:1.6;overflow-x:auto}.prose pre code{background:0 0;padding:0}.prose strong{font-weight:700}.prose img{border-radius:var(--radius);border:1px solid var(--line);margin:20px auto}.prose img+em,.prose p>em:only-child{text-align:center;color:var(--fg-light);margin-top:-12px;margin-bottom:18px;font-size:13px;display:block}.cover-img{border-radius:var(--radius);border:1px solid var(--line);width:100%;margin-bottom:26px}.card-cover{object-fit:cover;border:1px solid var(--line);border-radius:6px;width:100%;height:150px;margin-bottom:14px}.chip{background:var(--brand-soft);color:var(--brand);border-radius:999px;padding:2px 10px;font-size:12.5px;font-weight:500;display:inline-block}.chip.ghost{background:var(--bg-soft);color:var(--fg-muted)}.btn{cursor:pointer;border:1px solid #0000;border-radius:8px;align-items:center;gap:8px;padding:11px 22px;font-size:15px;font-weight:600;transition:all .16s;display:inline-flex}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark);color:#fff}.btn-ghost{border-color:var(--line);color:var(--fg);background:#fff}.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}@keyframes rise-in{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.hero{position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:radial-gradient(circle,#0b5fa51a 0%,#0b5fa500 68%);border-radius:50%;width:520px;height:520px;animation:1.2s ease-out both fade-in;position:absolute;top:-180px;right:-120px}.hero:after{content:"";pointer-events:none;background:radial-gradient(circle,#0b5fa512 0%,#0b5fa500 66%);border-radius:50%;width:460px;height:460px;animation:1.4s ease-out both fade-in;position:absolute;bottom:-220px;left:-140px}.hero-inner{z-index:1;position:relative}.hero-inner>*{animation:.6s ease-out both rise-in}.hero-inner>:nth-child(2){animation-delay:80ms}.hero-inner>:nth-child(3){animation-delay:.16s}.hero-inner>:nth-child(4){animation-delay:.24s}.hero-inner>:nth-child(5){animation-delay:.32s}.hero-inner>:nth-child(6){animation-delay:.4s}.card-hover{transition:border-color .18s,box-shadow .18s,transform .18s}.card-hover:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:0 6px 24px #0b5fa51a}@media (prefers-reduced-motion:reduce){.hero:before,.hero:after,.hero-inner>*{animation:none}.card-hover{transition:none}}.pagination{flex-wrap:wrap;justify-content:center;align-items:center;gap:16px;margin-top:36px;display:flex}.page-btn{border:1px solid var(--line);color:var(--fg-muted);background:#fff;border-radius:8px;align-items:center;padding:8px 16px;font-size:14px;transition:border-color .16s,color .16s;display:inline-flex}.page-btn:hover{border-color:var(--brand);color:var(--brand)}.page-btn.disabled{color:var(--fg-light);opacity:.5;cursor:not-allowed;pointer-events:none}.page-nums{align-items:center;gap:6px;display:flex}.page-num{min-width:34px;height:34px;color:var(--fg-muted);border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;font-size:14px;display:inline-flex}.page-num:hover{background:var(--bg-soft);color:var(--brand)}.page-num.current{background:var(--brand);color:#fff;font-weight:600}@media (width<=600px){.pagination{gap:10px}.page-btn{padding:7px 12px;font-size:13px}.page-num{min-width:30px;height:30px;font-size:13px}}.to-top{border:1px solid var(--line);width:44px;height:44px;color:var(--fg-muted);z-index:40;opacity:0;visibility:hidden;background:#fff;border-radius:50%;justify-content:center;align-items:center;transition:border-color .16s,color .16s,transform .16s;display:flex;position:fixed;bottom:28px;right:24px;box-shadow:0 4px 16px #0b28461a}.to-top:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}@supports (animation-timeline:scroll()){.to-top{animation:linear both show-to-top;animation-timeline:scroll(root);animation-range:400px 700px}@keyframes show-to-top{0%{opacity:0;visibility:hidden;transform:translateY(8px)}to{opacity:1;visibility:visible;transform:translateY(0)}}}@supports not (animation-timeline:scroll()){.to-top{opacity:1;visibility:visible}}@media (prefers-reduced-motion:reduce){.to-top{opacity:1!important;visibility:visible!important;animation:none!important;transform:none!important}}@media (width<=760px){.to-top{width:40px;height:40px;bottom:18px;right:16px}.nav{gap:16px;height:56px}.nav-links{gap:16px;font-size:14px}.logo small{display:none}body,.prose{font-size:15.5px}}
