:root{color-scheme:dark;--bg:#06090E;--panel:#0F1721;--panel-2:#141E29;--ink:#F0F5FB;--ink-2:#9BAEC3;--ink-3:#74889E;--line:#253444;--line-strong:#3A5064;--accent:#43E1FF;--accent-ink:#5FD9F5;--accent-soft:#0E2B38;--accent-rgb:67,225,255;--ok:#46D6A0;--ok-soft:#122C25;--warn:#F0B45B;--warn-soft:#2A2113;--bad:#FF7385;--bad-soft:#2B171C;--mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;--sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif}
@media(prefers-color-scheme:dark){:root{color-scheme:dark;--bg:#06090E;--panel:#0F1721;--panel-2:#141E29;--ink:#F0F5FB;--ink-2:#9BAEC3;--ink-3:#74889E;--line:#253444;--line-strong:#3A5064;--accent:#43E1FF;--accent-ink:#5FD9F5;--accent-soft:#0E2B38;--accent-rgb:67,225,255;--ok:#46D6A0;--ok-soft:#122C25;--warn:#F0B45B;--warn-soft:#2A2113;--bad:#FF7385;--bad-soft:#2B171C;--mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;--sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif}}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 var(--sans)}a{color:inherit;text-decoration:none}button,input{font:inherit}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.wrap{width:calc(100% - 32px);max-width:1180px;margin:auto}.ambient{display:none}.topbar{display:flex;align-items:center;justify-content:space-between;padding:26px 2px 20px;border-bottom:2px solid var(--ink);gap:20px}.brand{display:flex;gap:12px;align-items:center;font:600 21px var(--mono)}.brand b{font-weight:600;color:var(--accent)}.brand small{display:block;font:11px var(--sans);letter-spacing:3px;color:var(--ink-3);margin-top:5px}.brand-mark{display:flex;align-items:center;justify-content:center;width:43px;height:43px;border:1px solid var(--line-strong);border-radius:8px;background:var(--panel);color:var(--accent);font-size:27px;font-weight:700;letter-spacing:-8px;padding-right:8px}.brand-mark span{transform:scaleX(-1)}.topbar nav{display:flex;align-items:center;gap:24px;font-size:12px;color:var(--ink-2)}.topbar nav .active,.topbar nav a:hover{color:var(--accent-ink)}.local-badge{border-left:1px solid var(--line-strong);padding-left:22px;color:var(--ink-3);font-size:11px}i{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--ok);margin-right:7px}.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center;padding:52px 2px 48px}.hero-copy,.circuit-panel{min-width:0}.eyebrow{font:10px/1.7 var(--mono);letter-spacing:1.6px;color:var(--ink-3);margin:0 0 17px}.hero-copy>.eyebrow{color:var(--accent-ink)}.eyebrow>span{display:inline-block;background:var(--accent);width:6px;height:6px;margin-right:9px}.hero h1{font-size:52px;font-weight:900;letter-spacing:.01em;line-height:1.25;margin:0 0 22px}.accent{color:var(--accent)}.title-dot{color:var(--accent);font-weight:400;font-family:var(--mono)}.hero-desc{font-size:14px;color:var(--ink-2);line-height:1.9;margin:0 0 24px}.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.primary{display:inline-flex;align-items:center;gap:35px;background:var(--accent);border:1px solid var(--accent);border-radius:8px;padding:12px 18px;font-size:13px;font-weight:700;color:#fff}.primary:hover{filter:brightness(.94)}.primary span{font-size:19px}.hero-note{font-size:11px;color:var(--ink-3)}.hero-note i{display:inline;margin:0 8px;background:none;font-style:normal;color:var(--line-strong)}.hero-meta{display:flex;gap:12px;margin-top:28px}.hero-meta>span{flex:1;min-width:0;border:1px solid var(--line);border-radius:8px;padding:10px 12px;background:var(--panel-2);font-size:10px;color:var(--ink-3)}.hero-meta b{display:block;font:600 19px var(--mono);color:var(--ink);margin-bottom:3px}.circuit-panel{position:relative;border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:0 20px 16px}.panel-top{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:17px 0 14px;border-bottom:1px solid var(--line);font:9px var(--mono);letter-spacing:1px;color:var(--ink-2)}.panel-top span:last-child{font-size:8px;color:var(--ink-3)}.circuit{display:block;width:100%;max-width:100%;height:auto;margin:5px 0 12px}.signal{animation:flow 8s linear infinite}.wave{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:8px;background:var(--panel-2);padding:9px 10px;font:8px var(--mono);color:var(--ink-3)}.wave svg{flex:1;min-width:0;height:28px}.wave svg path{stroke:var(--accent)}.wave b{font-weight:600;color:var(--accent-ink)}.float-label{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--ink-2);margin-top:13px}.float-label small{font:8px var(--mono);margin-left:12px;color:var(--ink-3);letter-spacing:1px}.spark{display:grid;place-items:center;border-radius:5px;width:26px;height:26px;background:var(--accent-soft);color:var(--accent);font:23px var(--mono)}.directory{border-top:1px solid var(--line-strong);padding-top:28px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:24px}.section-heading .eyebrow{margin-bottom:5px;font-size:9px}.section-heading h2{font-size:22px;margin:0;font-weight:700}.section-heading h2>span{color:var(--accent)}.search{display:flex;align-items:center;gap:9px;width:300px;min-width:0;background:var(--panel);border:1px solid var(--line-strong);border-radius:8px;padding:10px 12px}.search:focus-within{outline:2px solid var(--accent);outline-offset:-1px}.search svg{width:17px;flex:none;color:var(--ink-3)}.search input{background:none;border:0;color:var(--ink);width:100%;min-width:0;font:12px var(--sans);outline:none}.search input::placeholder{color:var(--ink-3)}.search kbd{border:1px solid var(--line);border-radius:3px;padding:1px 5px;color:var(--ink-3);font:10px var(--mono)}.filter-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:22px 0 18px;font-size:11px;color:var(--ink-3)}.filters{display:flex;gap:8px}.filters button{padding:6px 12px;border:1px solid var(--line-strong);border-radius:999px;background:var(--panel);color:var(--ink-2);font-size:12px;cursor:pointer}.filters button.selected{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-ink)}.filters span{font-family:var(--mono);margin-left:8px}.tool-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1fr);gap:18px}.tool-card{min-width:0;border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:22px;transition:border-color .2s}.tool-card:hover{border-color:var(--accent)}.card-top{display:flex;align-items:center;justify-content:space-between}.tool-icon{display:grid;place-items:center;width:38px;height:38px;border-radius:8px;background:var(--accent-soft);color:var(--accent);font:30px var(--mono)}.available{font-size:10px;color:var(--ok)}.tool-number{font:9px var(--mono);color:var(--ink-3);letter-spacing:1px;margin-top:21px}.tool-card h3{font-size:19px;font-weight:700;margin:8px 0 10px}.tool-card>p{font-size:12.5px;line-height:1.85;margin:0 0 16px;color:var(--ink-2)}.tags{display:flex;gap:7px;flex-wrap:wrap}.tags span{font-size:10px;padding:3px 7px;background:var(--panel-2);border:1px solid var(--line);border-radius:5px;color:var(--ink-2)}.mini-wave{border:1px dashed var(--line-strong);border-radius:8px;background:var(--panel-2);margin:20px 0 16px;padding:10px 12px}.mini-wave svg{width:100%;height:42px}.mini-wave svg path:first-child{stroke:var(--line-strong)}.mini-wave svg path:last-child{stroke:var(--accent)}.mini-wave>span{font:7px var(--mono);letter-spacing:1px;color:var(--ink-3)}.card-bottom{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:13px;font-size:12px;font-weight:600;color:var(--accent-ink)}.open-arrow{font-size:21px}.next-card{min-width:0;grid-column:span 2;border:1px dashed var(--line-strong);border-radius:12px;background:var(--panel-2);padding:26px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.next-symbol{display:grid;place-items:center;width:32px;height:32px;background:var(--panel);border:1px solid var(--line);border-radius:8px;color:var(--ink-3);font-size:24px;margin-bottom:20px}.next-card .eyebrow{font-size:9px;margin-bottom:8px}.next-card h3{font-size:22px;font-weight:500;margin:0 0 11px}.next-card>p:not(.eyebrow){font-size:13px;line-height:1.9;color:var(--ink-2);margin:0 0 20px}.next-card a{font-size:12px;color:var(--accent-ink)}.next-card a:hover{text-decoration:underline}.next-card a span{margin-left:14px}.empty{border:1px dashed var(--line-strong);border-radius:8px;padding:24px;color:var(--ink-2);font-size:13px}.manifesto{margin-top:40px;padding-top:25px;margin-bottom:35px;border-top:1px solid var(--line);display:flex;gap:19px;align-items:center}.cross{font-size:40px;color:var(--accent)}.manifesto p{font-size:14px;color:var(--ink-2);line-height:1.8;margin:0}.manifesto strong{color:var(--ink);font-weight:500}.manifesto-code{margin-left:auto;color:var(--ink-3);font:8px/2 var(--mono);letter-spacing:1px;text-align:right}.footer{display:flex;justify-content:space-between;gap:20px;padding:20px 0 30px;border-top:1px solid var(--line-strong)}.footer-name{font:600 11px var(--mono);color:var(--ink-2)}.footer-name span{font:10px var(--sans);margin-left:10px;color:var(--ink-3)}.footer>div{display:flex;gap:20px;font-size:10px;color:var(--ink-3)}.footer a:hover{color:var(--accent-ink)}[hidden]{display:none!important}@keyframes flow{to{stroke-dashoffset:-216}}
@media(max-width:1000px){.hero{gap:25px}.hero h1{font-size:43px}.panel-top span:last-child{display:none}.tool-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.next-card{grid-column:auto}.local-badge{display:none}.float-label small{display:block;margin:3px 0 0}.hero-meta>span{padding:9px}.tool-card h3{font-size:18px}}
@media(max-width:700px){.topbar{padding:20px 0 16px}.brand{font-size:16px;gap:8px}.brand small{font-size:9px;letter-spacing:2px}.brand-mark{width:35px;height:35px;font-size:24px}.topbar nav{gap:16px;font-size:10px}.hero{grid-template-columns:minmax(0,1fr);gap:25px;padding:30px 0}.hero h1{font-size:46px;letter-spacing:0}.hero-copy>.eyebrow{font-size:8px;letter-spacing:1px}.hero-desc{font-size:13px}.hero-actions{gap:18px}.hero-meta{max-width:400px;margin-top:23px}.circuit-panel{padding:0 14px 14px}.wave{font-size:7px;gap:8px}.panel-top{font-size:8px}.float-label small{display:inline;margin-left:8px;font-size:7px}.directory{padding-top:23px}.section-heading{flex-direction:column;align-items:stretch;gap:17px}.section-heading h2{font-size:21px}.search{width:100%}.filters button{font-size:11px;padding:6px 10px}.filter-row{font-size:10px}.tool-grid{grid-template-columns:minmax(0,1fr)}.tool-card{padding:20px}.tool-card h3{font-size:20px}.next-card{padding:22px;min-height:215px}.next-symbol{display:none}.next-card h3{font-size:20px}.manifesto{margin-top:27px;margin-bottom:27px;gap:13px}.manifesto p{font-size:12px}.manifesto-code{display:none}.cross{font-size:32px}.footer{flex-direction:column;gap:15px}.footer>div{gap:15px;flex-wrap:wrap;font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

/* ===== XGCHIP DARK THEME · 2026-11-12 ===== */
body{background:radial-gradient(1100px 660px at 82% 2%,#0E1A28 0%,transparent 62%),radial-gradient(860px 580px at 4% 98%,#120E24 0%,transparent 58%),var(--bg)!important;background-attachment:fixed!important}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background-image:linear-gradient(to right,rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.028) 1px,transparent 1px);background-size:80px 80px;-webkit-mask-image:radial-gradient(ellipse 82% 72% at 50% 30%,#000 10%,transparent 100%);mask-image:radial-gradient(ellipse 82% 72% at 50% 30%,#000 10%,transparent 100%)}
.accent,.title-dot,.section-heading h2>span,.cross{background:linear-gradient(120deg,#43E1FF,#A478FF);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-mark{border-color:rgba(var(--accent-rgb),.35);box-shadow:0 0 22px rgba(var(--accent-rgb),.12)}
.topbar{border-bottom:1px solid rgba(255,255,255,.10)!important}
.primary{background:linear-gradient(120deg,#43E1FF,#A478FF)!important;border-color:transparent!important;color:#06101A!important;box-shadow:0 10px 28px rgba(var(--accent-rgb),.20)}
.circuit-panel,.tool-card,.search,.hero-meta>span,.wave,.mini-wave,.next-card{backdrop-filter:blur(12px)}
.tool-card{transition:border-color .22s,box-shadow .25s,transform .25s}
.tool-card:hover{border-color:rgba(var(--accent-rgb),.65);box-shadow:0 20px 44px rgba(0,0,0,.5),0 0 28px rgba(var(--accent-rgb),.14);transform:translateY(-3px)}
.hero h1,.section-heading h2,.tool-card h3,.next-card h3{color:var(--ink)}

.ambient{display:block;position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.ambient::before,.ambient::after{content:"";position:absolute;width:min(720px,55vw);height:min(720px,55vw);border-radius:50%;filter:blur(34px);opacity:.6;mix-blend-mode:screen}
.ambient::before{left:-14%;top:-38%;background:radial-gradient(circle,rgba(67,225,255,.22),transparent 70%)}
.ambient::after{right:-14%;bottom:-32%;background:radial-gradient(circle,rgba(164,120,255,.24),transparent 70%)}
body>header,body>main,body>footer{position:relative;z-index:1}
@media(prefers-reduced-motion:reduce){.tool-card{transform:none!important}}

/* ===== NAV-FIRST REDESIGN · 2026-11-12 =====
   首页职责＝导航到工具。装饰性 hero / 电路图 / 数字块 / 宣言已移除，
   以下只保留目录所需的排版覆盖。 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.intro{padding:clamp(48px,8vh,88px) 2px clamp(28px,4vh,40px)}
.intro h1{font-size:clamp(42px,5.4vw,68px);font-weight:900;letter-spacing:-.02em;line-height:1.08;margin:0 0 12px}
.intro-desc{font-size:14px;color:var(--ink-2);margin:0}
.directory{border-top:0;padding-top:0}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.09)}
.search{width:min(340px,100%)}
.filter-row{margin:0;gap:16px}
.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:22px}
.tool-card{padding:26px;display:flex;flex-direction:column}
.tool-card h3{font-size:21px;margin:10px 0 10px}
.tool-card>p{font-size:13px;margin-bottom:18px}
.card-bottom{margin-top:auto;padding-top:18px}
.next-card{grid-column:auto;align-items:center;justify-content:center;text-align:center;min-height:220px;padding:24px}
.next-symbol{margin-bottom:12px}
.next-card>p:not(.eyebrow){font-size:14px;line-height:1.6;color:var(--ink-3);margin:0}
.footer{margin-top:clamp(40px,7vh,72px)}
@media(max-width:1000px){.tool-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.next-card{grid-column:auto}}
@media(max-width:700px){
 .intro{padding:36px 0 26px}
 .intro h1{font-size:44px}
 .toolbar{flex-direction:column;align-items:stretch;gap:14px}
 .search{width:100%}
 .filter-row{justify-content:space-between}
 .tool-grid{grid-template-columns:minmax(0,1fr);margin-top:18px}
 .tool-card{padding:20px}
 .next-card{min-height:120px}
 .footer{margin-top:34px}
}