@import "https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap";:root{color-scheme:dark;--bg:#07090c;--bg-2:#0a0e13;--panel:#0e141a;--panel-2:#121a21;--ink:#e9f0f4;--muted:#9fb0b8;--faint:#74858c;--radar:#4be3a3;--radar-dim:#4be3a324;--amber:#f3b552;--danger:#f2615f;--line:#78aaa024;--line-2:#78aaa038;--shadow:0 24px 80px -40px #000000d9;--grain:.03}[data-theme=light]{color-scheme:light;--bg:#f4f7f5;--bg-2:#eef2f0;--panel:#fff;--panel-2:#f1f5f2;--ink:#0f1a1e;--muted:#4a5a61;--faint:#6c7b82;--radar:#048c64;--radar-dim:#048c641a;--amber:#b06e08;--danger:#c62828;--line:#0f28231f;--line-2:#0f28232e;--shadow:0 24px 70px -44px #0f282366;--grain:.015}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}html[data-lang=en] [lang=zh],html[data-lang=zh] [lang=en]{display:none!important}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-family:IBM Plex Sans,PingFang SC,Microsoft YaHei,system-ui,sans-serif;line-height:1.6;overflow-x:hidden}html[data-lang=zh] body{line-height:1.75}a{color:inherit;text-decoration:none}::selection{background:var(--radar);color:var(--bg)}.bg{z-index:0;pointer-events:none;background:radial-gradient(900px 600px at 78% -8%, var(--radar-dim), transparent 60%), radial-gradient(700px 500px at 0% 100%, var(--radar-dim), transparent 55%);position:fixed;inset:0}.bg:before{content:"";background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);opacity:.6;background-size:64px 64px;position:absolute;inset:0;mask-image:radial-gradient(circle at 50% 30%,#000 0%,#0000 78%)}.grain:after{content:"";z-index:1;pointer-events:none;opacity:var(--grain);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");position:fixed;inset:0}.wrap{z-index:2;max-width:1120px;margin:0 auto;padding:0 24px;position:relative}.nav{z-index:30;border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--bg) 72%, transparent);-webkit-backdrop-filter:blur(16px);position:sticky;top:0}.nav-in{align-items:center;gap:16px;height:64px;display:flex}.brand{letter-spacing:-.01em;white-space:nowrap;flex-shrink:0;align-items:center;gap:10px;font-weight:600;display:flex}.brand img{border-radius:8px;width:30px;height:30px}.brand-name{letter-spacing:-.01em;font-size:17px;font-weight:600}.nav-spacer{flex:1}.nav-links{align-items:center;gap:4px;display:flex}.iconbtn{border:1px solid var(--line);min-width:36px;height:36px;color:var(--muted);cursor:pointer;background:0 0;border-radius:9px;place-items:center;padding:0 9px;font:600 12px/1 IBM Plex Mono,monospace;transition:color .18s,border-color .18s,background .18s;display:grid}.iconbtn:hover{color:var(--radar);border-color:var(--line-2)}.iconbtn svg{width:17px;height:17px}.seg{border:1px solid var(--line);border-radius:9px;display:inline-flex;overflow:hidden}.seg button{color:var(--faint);cursor:pointer;background:0 0;border:0;height:36px;padding:0 11px;font:600 12px/1 IBM Plex Mono,monospace;transition:color .18s,background .18s}.seg button[aria-pressed=true]{color:var(--radar);background:var(--radar-dim)}.btn{cursor:pointer;border:1px solid #0000;border-radius:12px;align-items:center;gap:8px;height:46px;padding:0 22px;font-size:15px;font-weight:600;transition:transform .15s,background .2s,border-color .2s,box-shadow .2s;display:inline-flex}.btn:active{transform:scale(.98)}.btn-primary{background:var(--radar);color:#04140d;box-shadow:0 12px 36px -14px var(--radar)}.btn-primary:hover{box-shadow:0 16px 44px -12px var(--radar)}[data-theme=light] .btn-primary{color:#fff}.btn-ghost{border-color:var(--line-2);color:var(--ink);background:color-mix(in srgb, var(--panel) 60%, transparent)}.btn-ghost:hover{border-color:var(--radar);color:var(--radar)}.btn-sm{border-radius:10px;height:38px;padding:0 16px;font-size:13.5px}.eyebrow{letter-spacing:.22em;text-transform:uppercase;color:var(--radar);align-items:center;gap:8px;font:500 11.5px/1 IBM Plex Mono,monospace;display:inline-flex}.eyebrow:before{content:"";background:var(--radar);opacity:.7;width:22px;height:1px}.label{letter-spacing:.18em;text-transform:uppercase;color:var(--faint);font:500 11px/1 IBM Plex Mono,monospace}.hero{padding:86px 0 64px}.hero-grid{grid-template-columns:1.05fr .95fr;align-items:center;gap:56px;display:grid}.hero h1{letter-spacing:-.025em;margin:20px 0 18px;font-size:clamp(34px,5.2vw,60px);font-weight:700;line-height:1.04}.hero h1 .hl{color:var(--radar)}.hero p.sub{color:var(--muted);max-width:30em;font-size:clamp(16px,2vw,19px)}.hero .cta{flex-wrap:wrap;gap:12px;margin-top:30px;display:flex}.hero .micro{color:var(--faint);margin-top:18px;font:500 12px/1.5 IBM Plex Mono,monospace}.radar{aspect-ratio:1;border-radius:50%;width:100%;max-width:440px;margin-left:auto;position:relative}.radar .ring{border:1px solid var(--line-2);border-radius:50%;position:absolute;inset:0}.radar .ring.r2{inset:14%}.radar .ring.r3{inset:28%}.radar .ring.r4{inset:42%}.radar .cross,.radar .cross2{background:var(--line);position:absolute}.radar .cross{width:1px;top:0;bottom:0;left:50%;transform:translate(-50%)}.radar .cross2{height:1px;top:50%;left:0;right:0;transform:translateY(-50%)}.radar .sweep{background:conic-gradient(from 0deg, var(--radar) 0deg, transparent 46deg, transparent 360deg);opacity:.26;border-radius:50%;animation:6.5s linear infinite sweep;position:absolute;inset:0;-webkit-mask:radial-gradient(circle,#0000 0,#000 0)}@keyframes sweep{to{transform:rotate(360deg)}}.radar .blip{background:var(--radar);width:10px;height:10px;box-shadow:0 0 0 4px var(--radar-dim);border-radius:50%;animation:3.4s ease-out infinite ping;position:absolute}.radar .blip.b1{top:30%;left:64%}.radar .blip.b2{animation-delay:1.1s;top:62%;left:40%}.radar .blip.b3{background:var(--amber);animation-delay:2.2s;top:47%;left:73%;box-shadow:0 0 0 4px #f3b55229}@keyframes ping{0%{opacity:0;transform:scale(.6)}18%{opacity:1}to{opacity:0;transform:scale(1.5)}}.chip-card{border:1px solid var(--line-2);background:var(--panel);width:250px;box-shadow:var(--shadow);backdrop-filter:blur(6px);border-radius:16px;padding:14px 16px;position:absolute;bottom:4%;right:-8%}.chip-card .row{justify-content:space-between;align-items:center;display:flex}.chip-card .tk{font:600 16px/1 IBM Plex Mono,monospace}.chip-card .pill{border-radius:999px;padding:4px 8px;font:600 10px/1 IBM Plex Mono,monospace}.chip-card .pill.long{color:var(--radar);background:var(--radar-dim)}.chip-card .crit{color:var(--muted);margin-top:10px;font-size:12.5px}.chip-card .meta{color:var(--faint);gap:14px;margin-top:10px;font:500 11px/1 IBM Plex Mono,monospace;display:flex}section{z-index:2;padding:64px 0;position:relative}.sec-head{max-width:40em;margin-bottom:40px}.sec-head h2{letter-spacing:-.02em;margin:14px 0 12px;font-size:clamp(26px,3.6vw,38px);line-height:1.12}.sec-head p{color:var(--muted);font-size:16.5px}.cards{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.card{border:1px solid var(--line);background:var(--panel);border-radius:18px;padding:26px 22px;transition:transform .25s,border-color .25s;position:relative;overflow:hidden}.card:hover{border-color:var(--line-2);transform:translateY(-4px)}.card .num{color:var(--radar);letter-spacing:.1em;font:600 12px/1 IBM Plex Mono,monospace}.card h3{letter-spacing:-.01em;margin:16px 0 8px;font-size:19px}.card p{color:var(--muted);font-size:14.5px}.card .ico{width:30px;height:30px;color:var(--radar)}.steps{border:1px solid var(--line);background:var(--panel);border-radius:18px;grid-template-columns:repeat(3,1fr);gap:0;display:grid;overflow:hidden}.step{border-right:1px solid var(--line);padding:28px 24px}.step:last-child{border-right:0}.step .n{color:var(--bg);background:var(--radar);border-radius:8px;place-items:center;width:26px;height:26px;font:600 13px/1 IBM Plex Mono,monospace;display:grid}[data-theme=light] .step .n{color:#fff}.step h3{margin:16px 0 6px;font-size:17px}.step p{color:var(--muted);font-size:14px}.band{border:1px solid var(--line-2);background:linear-gradient(160deg, var(--panel), var(--panel-2));text-align:center;border-radius:22px;padding:44px}.band h2{letter-spacing:-.02em;margin-bottom:12px;font-size:clamp(24px,3.4vw,34px)}.band p{color:var(--muted);max-width:36em;margin:0 auto 26px}.foot{border-top:1px solid var(--line);z-index:2;padding:48px 0 60px;position:relative}.foot-grid{flex-wrap:wrap;justify-content:space-between;gap:40px;display:flex}.foot .brand{margin-bottom:12px}.foot .disc{color:var(--faint);max-width:34em;font-size:12.5px}.foot nav{flex-wrap:wrap;gap:22px;display:flex}.foot nav a{color:var(--muted);font-size:14px}.foot nav a:hover{color:var(--radar)}.foot .copy{color:var(--faint);margin-top:30px;font:500 11.5px/1.6 IBM Plex Mono,monospace}.legal{z-index:2;padding:56px 0 72px;position:relative}.legal .crumb{color:var(--faint);margin-bottom:18px;font:500 12px/1 IBM Plex Mono,monospace}.legal h1{letter-spacing:-.02em;margin-bottom:6px;font-size:clamp(28px,4vw,40px)}.legal .updated{color:var(--faint);margin-bottom:30px;font:500 12px/1 IBM Plex Mono,monospace}.prose{max-width:760px}.prose h2{letter-spacing:-.01em;margin:34px 0 10px;font-size:19px}.prose p,.prose li{color:var(--muted);margin-bottom:10px;font-size:15px}.prose ul{margin-bottom:10px;padding-left:20px}.prose strong{color:var(--ink)}.prose a{color:var(--radar)}@keyframes rise{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}[data-reveal].in{animation:.7s cubic-bezier(.2,.7,.2,1) both rise}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}[data-reveal].in{animation:none}}@media (width<=860px){.hero-grid{grid-template-columns:1fr;gap:36px}.radar{max-width:340px;margin:0 auto}.chip-card{right:0}.cards,.steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}}@media (width<=560px){.nav-in{gap:8px}.nav-links{gap:6px}.navlink{display:none}.brand-name{font-size:15px}.btn-sm{padding:0 13px}.wrap{padding:0 18px}}.postlist{gap:14px;max-width:820px;display:grid}.postcard{border:1px solid var(--line);background:var(--panel);border-radius:16px;padding:22px;transition:transform .2s,border-color .2s;display:block}.postcard:hover{border-color:var(--line-2);transform:translateY(-3px)}.postcard h3{letter-spacing:-.01em;margin-bottom:6px;font-size:20px}.postcard p{color:var(--muted);margin-bottom:12px;font-size:14.5px}.post-meta{color:var(--faint);flex-wrap:wrap;align-items:center;gap:10px;font:500 11.5px/1 IBM Plex Mono,monospace;display:flex}.tag{border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:4px 9px}.lang-badge{border:1px solid var(--radar);color:var(--radar);border-radius:999px;padding:4px 9px}.post-cta{border-top:1px solid var(--line);flex-wrap:wrap;gap:12px;margin-top:40px;padding-top:28px;display:flex}.prose h1+.post-meta{margin:8px 0 28px}.prose blockquote{border-left:2px solid var(--radar);color:var(--ink);margin:16px 0;padding:4px 0 4px 16px}.prose code{background:var(--panel-2);border-radius:6px;padding:2px 6px;font-family:IBM Plex Mono,monospace;font-size:.9em}.prose pre{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;margin-bottom:14px;padding:16px;overflow:auto}.prose pre code{background:0 0;padding:0}.prose hr{border:0;border-top:1px solid var(--line);margin:28px 0}.prose table{border-collapse:collapse;width:100%;margin:14px 0;font-size:14px}.prose th,.prose td{border:1px solid var(--line);text-align:left;padding:8px 10px}.faq{gap:12px;max-width:800px;display:grid}.faq details{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:4px 18px}.faq summary{cursor:pointer;padding:16px 0;font-size:16px;font-weight:600;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq details[open] summary{color:var(--radar)}.faq details p{color:var(--muted);padding-bottom:16px;font-size:14.5px}.navlink{color:var(--muted);align-items:center;height:36px;padding:0 8px;font-size:14px;display:inline-flex}.navlink:hover{color:var(--radar)}.cform{gap:14px;max-width:560px;margin-top:24px;display:grid}.cform label{letter-spacing:.06em;color:var(--faint);text-transform:uppercase;gap:6px;font:500 12px/1 IBM Plex Mono,monospace;display:grid}.cform input,.cform textarea{border:1px solid var(--line);background:var(--panel);width:100%;color:var(--ink);border-radius:12px;padding:12px 14px;font:400 15px/1.5 IBM Plex Sans,PingFang SC,sans-serif;transition:border-color .18s}.cform input:focus,.cform textarea:focus{border-color:var(--radar);outline:none}.cform textarea{resize:vertical;min-height:140px}.cform .hp{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.cform button{justify-self:start}.cform button:disabled{opacity:.5;pointer-events:none}.cform-status{min-height:20px;font:500 13px/1.5 IBM Plex Mono,monospace}.cform-status.ok{color:var(--radar)}.cform-status.err{color:var(--danger)}.btn-dark{background:var(--ink);color:var(--bg);border-color:var(--ink)}.btn-dark:hover{opacity:.88}.menu{position:relative}.menu-panel{border:1px solid var(--line-2);background:var(--panel);min-width:240px;box-shadow:var(--shadow);z-index:40;opacity:0;pointer-events:none;border-radius:16px;padding:12px;transition:opacity .16s,transform .16s;position:absolute;top:calc(100% + 10px);right:0;transform:translateY(-6px)scale(.98)}.menu.open .menu-panel{opacity:1;pointer-events:auto;transform:none}.menu-row{padding:8px 4px}.menu-row+.menu-row{border-top:1px solid var(--line)}.menu-row .menu-label{letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:8px;font:500 11px/1 IBM Plex Mono,monospace;display:block}.menu-panel .seg{width:100%;display:flex}.menu-panel .seg button{flex:1;height:34px}.filters{flex-wrap:wrap;align-items:center;gap:10px;margin:22px 0 26px;display:flex}.search-wrap{flex:1;min-width:220px;position:relative}.search-wrap input{border:1px solid var(--line);background:var(--panel);width:100%;color:var(--ink);border-radius:12px;padding:11px 14px 11px 38px;font:400 14.5px/1.4 IBM Plex Sans,PingFang SC,sans-serif}.search-wrap input:focus{border-color:var(--radar);outline:none}.search-wrap svg{width:16px;height:16px;color:var(--faint);pointer-events:none;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.chip-btn{border:1px solid var(--line);background:var(--panel);color:var(--muted);cursor:pointer;border-radius:999px;padding:8px 14px;font:500 12.5px/1 IBM Plex Mono,monospace;transition:color .15s,border-color .15s,background .15s}.chip-btn:hover{color:var(--ink)}.chip-btn[aria-pressed=true]{color:var(--radar);border-color:var(--radar);background:var(--radar-dim)}.tiles{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));align-items:start;gap:16px;display:grid}.tile{border:1px solid var(--line);background:var(--panel);border-radius:18px;flex-direction:column;min-height:180px;padding:22px;transition:transform .2s,border-color .2s;display:flex}.tile:hover{border-color:var(--line-2);transform:translateY(-4px)}.tile .tile-top{align-items:center;gap:8px;margin-bottom:12px;display:flex}.tile h3{letter-spacing:-.01em;margin-bottom:8px;font-size:18px;line-height:1.3}.tile p{color:var(--muted);flex:1;font-size:14px}.tile .tile-meta{color:var(--faint);flex-wrap:wrap;align-items:center;gap:8px;margin-top:14px;font:500 11px/1 IBM Plex Mono,monospace;display:flex}.tile.hidden{display:none}.tiles-empty{color:var(--faint);padding:30px 4px;font-size:14px}.chips{flex-wrap:wrap;align-items:center;gap:8px;display:flex}
