/* xiaobai shared design system: tokens, layout, components, background FX. Used by homepage and all subpages. */
:root{--bg:#0f1626;--bg2:#16213a;--panel:rgba(24,35,58,.78);--line:rgba(150,200,255,.18);--line2:rgba(0,240,255,.35);--tx:#e6edf7;--mut:#a9b6cc;--cy:#00f0ff;--gr:#39ff88;--vi:#8b5cf6;--pk:#ff3df0;
--sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
--mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,"JetBrains Mono","Liberation Mono",monospace}
*{box-sizing:border-box;margin:0;padding:0}
html{scrollbar-gutter:stable;scroll-behavior:smooth;scroll-padding-top:80px}
body{background:var(--bg);color:var(--tx);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;min-height:100vh}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
::selection{background:var(--cy);color:#000}
/* background layers */
.bg{position:fixed;inset:0;z-index:-3;pointer-events:none;
 background:radial-gradient(70vw 55vh at 50% -5%,rgba(0,240,255,.2),transparent 65%),radial-gradient(60vw 50vh at 12% 0%,rgba(139,92,246,.24),transparent 60%),radial-gradient(50vw 50vh at 100% 30%,rgba(0,240,255,.12),transparent 60%),radial-gradient(60vw 60vh at 40% 110%,rgba(57,255,136,.08),transparent 60%),linear-gradient(180deg,var(--bg2),var(--bg) 70%)}
.bg::before{content:"";position:absolute;inset:-2px;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;
 -webkit-mask:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 80%);mask:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 80%);animation:grid 24s linear infinite}
@keyframes grid{to{background-position:0 56px,56px 0}}
.bg::after{content:"";position:absolute;inset:0;opacity:.09;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.scan{position:fixed;inset:0;z-index:-2;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(255,255,255,.022) 0 1px,transparent 1px 3px)}
#trail{position:fixed;inset:0;width:100%;height:100%;z-index:1;pointer-events:none;opacity:1}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}
/* header */
.top{position:sticky;top:0;z-index:40;backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);background:rgba(15,22,38,.72);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:20px;height:62px}
.who{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:14px}
.who img{width:34px;height:34px;border-radius:9px;border:1px solid var(--line2);box-shadow:0 0 16px rgba(0,240,255,.25)}
.who b{color:var(--cy);font-weight:600}
.who .dot{width:7px;height:7px;border-radius:50%;background:var(--gr);box-shadow:0 0 10px var(--gr);animation:blink 2s infinite}
@keyframes blink{50%{opacity:.3}}
.tabs{display:flex;gap:4px;margin-left:auto;font-family:var(--mono);font-size:12.5px}
.tabs a{padding:6px 10px;border-radius:6px;color:var(--mut);transition:.2s}
.tabs a:hover,.tabs a.cur{color:var(--cy);background:rgba(0,240,255,.08)}
.tabs a.cur::before{content:"> "}
.soc{display:flex;gap:6px}
.soc a{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);border-radius:8px;transition:.2s}
.soc a:hover{border-color:var(--cy);box-shadow:0 0 14px rgba(0,240,255,.35)}
.soc svg{width:16px;height:16px;fill:var(--tx)}
/* hero */
.hero{padding:96px 0 56px;position:relative}
.hud{font-family:var(--mono);font-size:12px;color:var(--mut);display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:26px}
.hud span::before{content:"";display:inline-block;width:6px;height:6px;margin-right:8px;background:var(--cy);box-shadow:0 0 8px var(--cy);vertical-align:middle}
.hud span:nth-child(2)::before{background:var(--gr);box-shadow:0 0 8px var(--gr)}
.hud span:nth-child(3)::before{background:var(--vi);box-shadow:0 0 8px var(--vi)}
h1.slogan{font-size:clamp(30px,6.2vw,80px);line-height:1.08;font-weight:800;letter-spacing:-.02em;
 background:linear-gradient(100deg,#fff 0%,#c9d2ff 35%,var(--cy) 60%,var(--gr) 85%);-webkit-background-clip:text;background-clip:text;color:transparent;
 filter:drop-shadow(0 0 30px rgba(0,240,255,.18))}
.hero-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:28px;align-items:end;margin-top:34px}
.term{border:1px solid var(--line);border-radius:14px;background:rgba(18,27,46,.9);font-family:var(--mono);font-size:13px;overflow:hidden;box-shadow:0 20px 60px -20px rgba(0,0,0,.8),inset 0 0 0 1px rgba(255,255,255,.02)}
.term .bar{display:flex;gap:6px;align-items:center;padding:10px 14px;border-bottom:1px solid var(--line);color:var(--mut);font-size:11.5px}
.term .bar i{width:10px;height:10px;border-radius:50%;background:#ff5f57}.term .bar i:nth-child(2){background:#febc2e}.term .bar i:nth-child(3){background:#28c840;margin-right:8px}
.term pre{padding:16px 18px;white-space:pre-wrap;min-height:150px;color:#dbe4f3;font:inherit}
.term .p{color:var(--gr)}.term .k{color:var(--cy)}.term .c{color:var(--mut)}
.cursor{display:inline-block;width:8px;height:15px;background:var(--cy);vertical-align:-2px;animation:blink 1s steps(1) infinite}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-family:var(--mono);font-size:12px;padding:6px 11px;border:1px solid var(--line);border-radius:999px;color:#d3dcec;background:rgba(255,255,255,.02)}
.tag.hl{border-color:var(--line2);color:var(--cy);box-shadow:0 0 18px -4px rgba(0,240,255,.5)}
.sub{color:var(--mut);margin:14px 0 18px;font-size:15px}
/* sections */
section{padding:44px 0}
.sh{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.sh .idx{font-family:var(--mono);color:var(--cy);font-size:13px}
.sh h2{font-size:clamp(22px,3vw,30px);font-weight:700;letter-spacing:-.01em}
.sh .more{font-size:13px;color:var(--mut);margin-left:auto}
.sh .more a{color:var(--cy);border-bottom:1px dashed rgba(0,240,255,.5)}
/* bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:minmax(200px,auto);gap:16px}
.card{--mx:50%;--my:50%;--ac:var(--cy);position:relative;display:flex;flex-direction:column;border-radius:18px;overflow:hidden;background:var(--panel);border:1px solid var(--line);
 transform:perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .25s ease,border-color .25s,box-shadow .25s;will-change:transform;isolation:isolate}
.card::before{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;opacity:0;transition:opacity .3s;background:radial-gradient(420px circle at var(--mx) var(--my),color-mix(in srgb,var(--ac) 22%,transparent),transparent 45%)}
.card::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;z-index:3;pointer-events:none;opacity:0;transition:opacity .3s;
 background:radial-gradient(300px circle at var(--mx) var(--my),var(--ac),transparent 60%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
.card:hover{border-color:transparent;box-shadow:0 24px 60px -24px color-mix(in srgb,var(--ac) 55%,transparent)}
.card:hover::before,.card:hover::after{opacity:1}
.card .th{position:relative;overflow:hidden;aspect-ratio:16/9;background:#111a2d}
.card .th img,.card .th video{width:100%;height:100%;object-fit:cover;opacity:.85;transition:transform .6s,opacity .3s}
.card:hover .th img,.card:hover .th video{transform:scale(1.04);opacity:1}
.card .th::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(24,35,58,.92))}
.card .th.logo{display:grid;place-items:center;background:radial-gradient(circle,rgba(139,92,246,.35),#16213a 70%)}
.card .th.logo img{width:96px;height:96px;object-fit:contain;filter:drop-shadow(0 0 24px rgba(139,92,246,.7))}
.card .bd{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .cat{font-family:var(--mono);font-size:11.5px;color:var(--ac);letter-spacing:.02em}
.card h3{font-size:21px;font-weight:700}
.card p{color:#bcc7da;font-size:14px}
.card .go{margin-top:auto;padding-top:6px;font-family:var(--mono);font-size:13px;color:var(--ac)}
.card .go::after{content:" →";transition:margin .2s}.card:hover .go::after{margin-left:6px}
.c1{grid-column:span 4;grid-row:span 2}.c1 .th{aspect-ratio:auto;flex:1;min-height:260px}
.c2{grid-column:span 2;--ac:#ffb35c}.c3{grid-column:span 3;--ac:var(--gr)}.c4{grid-column:span 3;--ac:var(--vi)}
.c2 .th{aspect-ratio:16/10}
.c3,.c4{flex-direction:row}.c3 .th,.c4 .th{aspect-ratio:auto;width:42%;flex:none}
.c3 .th::after,.c4 .th::after{background:linear-gradient(90deg,transparent 50%,rgba(24,35,58,.92))}
/* lists */
.panel{border:1px solid var(--line);border-radius:16px;background:var(--panel);backdrop-filter:blur(6px);overflow:hidden}
.rows{display:grid;grid-template-columns:1fr 1fr}
.row{display:flex;align-items:center;gap:12px;padding:13px 18px;border-bottom:1px solid var(--line);font-size:14px;transition:background .2s,color .2s;position:relative}
.rows .row:nth-child(odd){border-right:1px solid var(--line)}
.row:hover{background:rgba(0,240,255,.05)}
a.row:hover .t{color:#fff}
a.row::before{content:"";position:absolute;left:0;top:20%;bottom:20%;width:2px;background:var(--cy);box-shadow:0 0 10px var(--cy);transform:scaleY(0);transition:transform .2s}
a.row:hover::before{transform:scaleY(1)}
.row .ic{width:30px;height:30px;flex:none;display:grid;place-items:center;border-radius:8px;background:rgba(255,255,255,.04);border:1px solid var(--line);font-size:15px}
.row .t{flex:1;color:#d3dcec;min-width:0}
.row .t a{color:var(--cy)}
.row time{font-family:var(--mono);font-size:12px;color:var(--gr);flex:none}
.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.single .row:last-child{border-bottom:0}
.qq{display:inline-flex;align-items:center;gap:8px;margin:0 0 14px;padding:10px 16px;border-radius:10px;font-family:var(--mono);font-size:13px;color:#001014;background:linear-gradient(90deg,var(--cy),var(--gr));font-weight:700;box-shadow:0 0 24px -4px rgba(0,240,255,.6);transition:transform .2s}
.qq:hover{transform:translateY(-2px)}
/* feed */
.feed{position:relative;padding:8px 0 8px 0}
.fi{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:14px 20px;border-bottom:1px solid var(--line);font-size:14px}
.fi:last-child{border-bottom:0}
.fi time{font-family:var(--mono);font-size:12.5px;color:var(--cy)}
.fi time::before{content:"● ";color:var(--gr)}
.fi .t{color:#d3dcec}.fi b{color:#fff}
footer{border-top:1px solid var(--line);padding:30px 0 40px;color:var(--mut);font-size:13px;font-family:var(--mono)}
footer a{color:var(--cy)}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
/* reveal */
.js .rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
/* responsive */
@media (max-width:960px){.tabs{display:none}.soc{margin-left:auto}.hero-grid{grid-template-columns:1fr}
 .bento{grid-template-columns:1fr 1fr}.c1{grid-column:span 2;grid-row:auto}.c2,.c3,.c4{grid-column:span 1}
 .c3,.c4{flex-direction:column}.c3 .th,.c4 .th{width:auto;aspect-ratio:16/9}.split{grid-template-columns:1fr}}
@media (max-width:640px){.wrap{padding:0 16px}.hero{padding:56px 0 32px}.bento{grid-template-columns:1fr}.c1,.c2,.c3,.c4{grid-column:auto}.c1 .th{min-height:200px}
 .rows{grid-template-columns:1fr}.rows .row:nth-child(odd){border-right:0}.fi{grid-template-columns:1fr;gap:4px}.sh .more{margin-left:0;width:100%}.who small{display:none}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.rv{opacity:1;transform:none}.card{transform:none!important}}

h1.slogan .cl{white-space:nowrap;display:inline-block}
.hero{padding:80px 0 40px}
.hero-grid{align-items:center;margin-top:28px}
.sub{margin:0 0 16px}
.c1{grid-row:span 2}
.c1 .th{min-height:300px}
.c1 .meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.c1 .meta span{font-family:var(--mono);font-size:11px;padding:3px 8px;border:1px solid var(--line);border-radius:6px;color:var(--cy)}
.c2 .th img{object-position:top center}
.c3 .th,.c4 .th{background:radial-gradient(circle,rgba(57,255,136,.12),#16213a 75%)}
.c3 .th img{object-fit:contain;object-position:center;padding:8px}
@media (max-width:640px){h1.slogan{font-size:clamp(26px,8.6vw,44px)}h1.slogan .cl{display:block}}

.hero-grid{align-items:center;margin-top:0}
.hero-left{display:flex;flex-direction:column;gap:18px;align-self:center}
.hero-left .sub{margin:0}
main{position:relative;z-index:2}
.c1 .bd{flex:none}
.c1 .th{flex:1 1 auto;min-height:280px}
.c1 .th video{position:absolute;inset:0}
.rows .row:last-child:nth-child(odd){grid-column:1/-1;border-right:0}
.c3 .th img{object-fit:cover;object-position:top center;padding:0}
.c4 .th.logo{background:radial-gradient(circle at 50% 45%,rgba(139,92,246,.55),rgba(0,240,255,.12) 45%,#16213a 80%)}
.c4 .th.logo img{width:min(60%,150px);height:auto;filter:drop-shadow(0 0 28px rgba(139,92,246,.8)) drop-shadow(0 0 10px rgba(0,240,255,.4))}

/* pass 3 */
.bento{align-items:stretch}
.c2{grid-row:span 2}
.card{height:100%}
.card .th{flex:1 1 auto}
.c2 .th{aspect-ratio:auto;min-height:180px}
.c3 .th,.c4 .th{background:linear-gradient(135deg,rgba(57,255,136,.14),rgba(0,240,255,.08) 50%,#16213a)}
.c3 .th img{object-fit:contain;object-position:center;padding:6px;opacity:1}
.c3 .th::after{display:none}
.rows{grid-auto-rows:1fr}
.rows .row:last-child:nth-child(odd){grid-column:auto;border-right:1px solid var(--line)}
.row .t{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.more-tile .t{color:var(--cy)!important;font-family:var(--mono)}
.split{align-items:stretch}
.svc,#sec-docs{display:flex;flex-direction:column}
.svc .panel,#sec-docs .panel{flex:1;display:flex;flex-direction:column}
.svc .panel .row{flex:1}
.svc .qq{align-self:flex-start}
.term .bar .clock{margin-left:auto;color:var(--cy);font-variant-numeric:tabular-nums}
/* slogan reveal */
.js h1.slogan{animation:sweep 1.1s cubic-bezier(.7,0,.2,1) .15s both}
.js h1.slogan::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--cy);box-shadow:0 0 16px var(--cy);animation:scanbar 1.1s cubic-bezier(.7,0,.2,1) .15s both}
h1.slogan{position:relative}
@keyframes sweep{from{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 0 0 0)}}
@keyframes scanbar{0%{left:0;opacity:1}90%{opacity:1}100%{left:100%;opacity:0}}
/* conic neon border */
@property --ang{syntax:'<angle>';inherits:false;initial-value:0deg}
.card::after{background:conic-gradient(from var(--ang),transparent 0 60%,var(--ac) 75%,#fff 80%,var(--ac) 85%,transparent 100%);padding:1.5px}
.card:hover::after{animation:spin 3s linear infinite}
@keyframes spin{to{--ang:360deg}}
@media (max-width:960px){.c2{grid-row:auto}}
@media (prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none}.js h1.slogan{clip-path:none}.js h1.slogan::after{display:none}}

/* brighter surfaces */
.card,.panel{background:linear-gradient(180deg,rgba(255,255,255,.085),rgba(255,255,255,.05)),rgba(24,35,58,.72)}
.bg::before{background-image:linear-gradient(rgba(150,200,255,.11) 1px,transparent 1px),linear-gradient(90deg,rgba(150,200,255,.11) 1px,transparent 1px)}
.row .ic,.tag{background:rgba(255,255,255,.06)}

/* ---------- background FX (all pages) ---------- */
.aurora{position:fixed;inset:0;z-index:-2;pointer-events:none;overflow:hidden}
.aurora i{position:absolute;border-radius:50%;filter:blur(70px);opacity:.38;will-change:transform}
.aurora i:nth-child(1){width:46vmax;height:46vmax;left:-10vmax;top:-14vmax;background:radial-gradient(circle,rgba(0,240,255,.55),transparent 65%);animation:au1 26s ease-in-out infinite alternate}
.aurora i:nth-child(2){width:40vmax;height:40vmax;right:-12vmax;top:18vh;background:radial-gradient(circle,rgba(139,92,246,.6),transparent 65%);animation:au2 32s ease-in-out infinite alternate}
.aurora i:nth-child(3){width:36vmax;height:36vmax;left:25vw;bottom:-18vmax;background:radial-gradient(circle,rgba(57,255,136,.35),transparent 65%);animation:au3 38s ease-in-out infinite alternate}
@keyframes au1{to{transform:translate(18vw,12vh) scale(1.15)}}
@keyframes au2{to{transform:translate(-16vw,-10vh) scale(.9)}}
@keyframes au3{to{transform:translate(-12vw,-14vh) scale(1.2)}}
#bgfx{position:fixed;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}
#trail{position:fixed;inset:0;width:100%;height:100%;pointer-events:none}
@media (prefers-reduced-motion:reduce){.aurora i{animation:none!important}}


/* ================= shared components (subpages + home) ================= */
.btns{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:10px;font-family:var(--mono);font-size:13.5px;font-weight:700;cursor:pointer;border:1px solid transparent;transition:transform .2s,box-shadow .2s,border-color .2s,color .2s;line-height:1.2;text-decoration:none}
.btn.pri{color:#001014;background:linear-gradient(90deg,var(--cy),var(--gr));box-shadow:0 0 24px -6px rgba(0,240,255,.6)}
.btn.pri:hover{transform:translateY(-2px);box-shadow:0 0 32px -4px rgba(0,240,255,.8)}
.btn.gho{color:var(--tx);background:rgba(255,255,255,.05);border-color:var(--line)}
.btn.gho:hover{border-color:var(--cy);color:var(--cy)}
button.btn{font:inherit;font-family:var(--mono);font-size:13.5px;font-weight:700}
.hero.sub-hero{padding:72px 0 28px}
.sub-hero h1.slogan{font-size:clamp(30px,4.8vw,58px);line-height:1.15;white-space:normal}
.sub-hero .hero-left{gap:16px}
.sub-hero .lead{color:var(--mut);font-size:15.5px;max-width:62ch}
.sub-hero .lead b,.sub-hero .lead strong{color:var(--tx)}
.sub-hero .hero-icon{width:64px;height:64px;border-radius:16px;object-fit:cover;border:1px solid var(--line2);box-shadow:0 0 24px -4px rgba(0,240,255,.4)}
.term.facts pre{min-height:0;font-size:12.5px;line-height:1.75;word-break:break-all}
.term.facts .v{color:#fff}
/* prose panel */
.prose{padding:22px 26px;font-size:14.8px;color:#d3dcec;line-height:1.85}
.prose>*+*{margin-top:12px}
.prose h3{font-size:16px;color:#fff;margin-top:22px;font-weight:700}
.prose h3::before{content:"# ";font-family:var(--mono);color:var(--cy)}
.prose h3:first-child{margin-top:0}
.prose a{color:var(--cy);border-bottom:1px dashed rgba(0,240,255,.45)}
.prose a.btn{border-bottom:1px solid transparent}
.prose strong,.prose b{color:#fff}
.prose ul{list-style:none;padding:0}
.prose ul>li{position:relative;padding-left:20px;margin:6px 0}
.prose ul>li::before{content:"▹";position:absolute;left:0;color:var(--gr);font-family:var(--mono)}
.prose ol:not(.steps){padding-left:22px}
.prose ol:not(.steps)>li::marker{color:var(--cy);font-family:var(--mono)}
.prose blockquote{border-left:2px solid var(--cy);background:rgba(0,240,255,.05);padding:10px 14px;border-radius:0 10px 10px 0;color:var(--mut)}
.prose :not(pre)>code{font-family:var(--mono);font-size:.86em;background:rgba(0,240,255,.09);color:var(--cy);border:1px solid rgba(0,240,255,.18);padding:1px 6px;border-radius:6px;word-break:break-all}
.prose img{border-radius:12px;border:1px solid var(--line)}
.prose .cap,.prose figcaption{font-family:var(--mono);font-size:12px;color:var(--mut);text-align:center;margin-top:8px}
/* terminal code block */
.codeblk{border:1px solid var(--line);border-radius:12px;background:rgba(8,12,24,.9);overflow:hidden}
.codeblk .bar{display:flex;gap:6px;align-items:center;padding:8px 12px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:11px;color:var(--mut)}
.codeblk .bar i{width:9px;height:9px;border-radius:50%;background:#ff5f57}.codeblk .bar i:nth-child(2){background:#febc2e}.codeblk .bar i:nth-child(3){background:#28c840;margin-right:6px}
.codeblk pre{margin:0;padding:14px 16px;overflow-x:auto;font-family:var(--mono);font-size:12.8px;line-height:1.7;color:#dbe4f3}
.codeblk pre code{background:none!important;border:0!important;color:inherit!important;padding:0!important;font-size:inherit}
/* tables */
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:rgba(10,16,30,.55)}
.tbl table{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{font-family:var(--mono);font-weight:600;font-size:12px;color:var(--cy);background:rgba(0,240,255,.07);text-align:left;white-space:nowrap}
.tbl th,.tbl td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.tbl tr:hover td{background:rgba(0,240,255,.035)}
/* steps timeline */
ol.steps{list-style:none;padding:0;counter-reset:st;position:relative}
ol.steps>li{counter-increment:st;position:relative;padding:0 0 18px 46px;margin:0}
ol.steps>li::before{content:counter(st,decimal-leading-zero);position:absolute;left:0;top:0;width:30px;height:30px;display:grid;place-items:center;border-radius:8px;font-family:var(--mono);font-size:12px;font-weight:700;color:#001014;background:linear-gradient(135deg,var(--cy),var(--gr));box-shadow:0 0 16px -4px rgba(0,240,255,.7)}
ol.steps>li::after{content:"";position:absolute;left:14.5px;top:34px;bottom:4px;width:1px;background:linear-gradient(var(--line2),transparent)}
ol.steps>li:last-child{padding-bottom:0}ol.steps>li:last-child::after{display:none}
.steps h3{font-size:16px;margin:2px 0 4px;color:#fff}.steps h3::before{content:none}
/* generic bento for subpages */
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}
.grid.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid .card .bd{gap:10px}
.card.plain{padding:0}
.card .bd h3{font-size:18px}
.card .bd>*{margin:0}
.card .bd ul{list-style:none;padding:0}
.card .bd ul>li{position:relative;padding-left:18px;margin:5px 0;font-size:13.8px;color:#bcc7da}
.card .bd ul>li::before{content:"▹";position:absolute;left:0;color:var(--gr);font-family:var(--mono)}
.card .bd a:not(.btn){color:var(--cy)}
.card .bd strong,.card .bd b{color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font-family:var(--mono);font-size:11.5px;padding:3px 9px;border:1px solid var(--line);border-radius:6px;color:var(--cy);background:rgba(0,240,255,.05)}
.chip.g{color:var(--gr);background:rgba(57,255,136,.05)}.chip.w{color:#ffb35c;border-color:rgba(255,179,92,.35);background:rgba(255,179,92,.06)}
.sha{display:block;font-family:var(--mono);font-size:11.5px;color:var(--mut);word-break:break-all;margin-top:3px}
.sha::before{content:"$ ";color:var(--gr)}
.card .icon{width:56px;height:56px;border-radius:14px;object-fit:contain;background:rgba(255,255,255,.06);border:1px solid var(--line);padding:8px}
.card .head{display:flex;gap:14px;align-items:center}
.card .rank{font-family:var(--mono);color:var(--cy);font-size:12px;margin-right:6px}
/* stats */
.stat{padding:22px;text-align:left}
.stat b{display:block;font-family:var(--mono);font-size:clamp(26px,3.4vw,38px);color:#fff;background:linear-gradient(90deg,#fff,var(--cy));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13px;color:var(--mut)}
/* media */
.media{margin:0;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--panel)}
.media img,.media video{display:block;width:100%;height:auto;background:#0b1222}
.media figcaption{padding:10px 14px;font-family:var(--mono);font-size:12px;color:var(--mut);border-top:1px solid var(--line)}
.media.narrow{max-width:420px;margin:0 auto}
/* faq */
.faq{padding:18px 20px}
.faq .q{font-weight:700;color:#fff;display:flex;gap:10px}
.faq .q::before{content:"Q";font-family:var(--mono);color:#001014;background:var(--cy);border-radius:5px;padding:0 6px;height:20px;line-height:20px;font-size:12px;flex:none;margin-top:2px}
.faq .a{color:#bcc7da;font-size:14px;margin-top:8px;display:flex;gap:10px}
.faq .a::before{content:"A";font-family:var(--mono);color:var(--gr);border:1px solid rgba(57,255,136,.5);border-radius:5px;padding:0 5px;height:20px;line-height:18px;font-size:12px;flex:none;margin-top:2px}
.faq .a>div{flex:1}
/* callout / cta */
.callout{display:flex;align-items:center;gap:12px;flex-wrap:wrap;border:1px dashed rgba(0,240,255,.45);background:rgba(0,240,255,.06);border-radius:12px;padding:14px 18px}
.callout a{color:var(--cy)}
.callout button{font-family:var(--mono);font-weight:700;font-size:13px;border:0;cursor:pointer;padding:9px 16px;border-radius:9px;color:#001014;background:linear-gradient(90deg,var(--cy),var(--gr))}
.cta{padding:34px 28px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;background:radial-gradient(80% 120% at 50% 0%,rgba(0,240,255,.12),transparent 60%),var(--panel)}
.cta h2{font-size:clamp(22px,3vw,30px)}
.cta p{color:var(--mut)}
.sh .desc{width:100%;color:var(--mut);font-size:14px}
.sec{padding:30px 0}
.stack>*+*{margin-top:16px}
footer .legal{width:100%;opacity:.85;font-size:11.5px}
/* subpage nav: keep ← 首页 visible on mobile */
.tabs a.home{color:var(--tx)}
@media (max-width:960px){.top .tabs.sub-tabs{display:flex;margin-left:auto}.top .tabs.sub-tabs a:not(.home){display:none}.top .tabs.sub-tabs+.soc{margin-left:6px}}
/* dialogs (DesktopFly download flow) */
.dlg-mask{position:fixed;inset:0;z-index:200;background:rgba(5,8,16,.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;padding:20px}
.dlg-mask[hidden]{display:none}
.dlg{width:min(440px,100%);max-height:90vh;overflow:auto;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04)),#16213a;border:1px solid var(--line2);border-radius:16px;padding:24px;box-shadow:0 30px 80px -20px rgba(0,0,0,.8),0 0 40px -10px rgba(0,240,255,.35);color:#d3dcec;font-size:14.5px}
.dlg[hidden]{display:none}
.dlg h3{font-size:19px;color:#fff;margin-bottom:10px}
.dlg h3::before{content:"> ";font-family:var(--mono);color:var(--cy)}
.dlg p{margin:8px 0}.dlg b,.dlg strong{color:#fff}
.dlg .donate{width:min(260px,100%);margin:10px auto;border-radius:12px;border:1px solid var(--line)}
.dlg .qq-name{font-family:var(--mono);font-size:26px;color:var(--cy);letter-spacing:.06em}
.dlg-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
@media (max-width:760px){.grid.g2,.grid.g3{grid-template-columns:1fr}.prose{padding:18px 16px}.sub-hero{padding-top:44px}}
h1.slogan .emo{-webkit-text-fill-color:initial;color:initial;background:none;filter:none}
h1.slogan .t-sub{display:block;font-size:.42em;line-height:1.5;margin-top:8px;font-family:var(--mono);font-weight:600;-webkit-text-fill-color:var(--mut);color:var(--mut)}
/* DesktopFly download popups — neon card style */
.dlg{position:relative;isolation:isolate;border:1px solid transparent;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035)),#16213a padding-box}
.dlg::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1.5px;z-index:-1;pointer-events:none;
 background:conic-gradient(from var(--ang),var(--cy),var(--gr),var(--vi),var(--cy));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:spin 4s linear infinite}
.dlg::after{content:"// DesktopFly · download";display:block;position:absolute;top:10px;right:14px;font-family:var(--mono);font-size:10.5px;color:var(--mut)}
.dlg-mask.show .dlg:not([hidden]){animation:dlgin .25s ease-out}
@keyframes dlgin{from{opacity:0;transform:translateY(10px) scale(.98)}}
.dlg .btn{flex:1 1 auto;justify-content:center}
@media (prefers-reduced-motion:reduce){.dlg::before,.dlg-mask.show .dlg{animation:none!important}}
/* QQ customer-service fallback modal */
.qqm{position:fixed;inset:0;z-index:400;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(5,8,16,.72);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.qqm[hidden]{display:none}
.qqm-box{--ang:0deg;position:relative;isolation:isolate;width:min(380px,100%);padding:26px 24px 22px;border-radius:16px;text-align:center;color:#d3dcec;
 background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035)),#16213a;box-shadow:0 30px 80px -20px rgba(0,0,0,.8),0 0 40px -10px rgba(0,240,255,.4);animation:dlgin .25s ease-out}
.qqm-box::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1.5px;z-index:-1;pointer-events:none;background:conic-gradient(from var(--ang),var(--cy),var(--gr),var(--vi),var(--cy));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:spin 4s linear infinite}
.qqm-x{position:absolute;top:8px;right:10px;width:30px;height:30px;border:0;border-radius:8px;background:transparent;color:var(--mut);font-size:20px;cursor:pointer}
.qqm-x:hover{color:var(--cy);background:rgba(0,240,255,.08)}
.qqm-k{font-family:var(--mono);font-size:11.5px;color:var(--cy)}
.qqm h3{font-size:18px;color:#fff;margin:6px 0 12px}
.qqm-num{font-family:var(--mono);font-size:30px;letter-spacing:.08em;color:#fff;text-shadow:0 0 18px rgba(0,240,255,.6);user-select:all;-webkit-user-select:all}
.qqm-tip{font-size:13px;color:var(--mut);margin:6px 0 16px}
.qqm-act{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.qqm-act .btn{flex:1 1 auto;justify-content:center}
@media (prefers-reduced-motion:reduce){.qqm-box,.qqm-box::before{animation:none!important}}

/* auto trending + live tools */
.trend-toggle{display:inline-flex;gap:4px;margin-left:auto;font-family:var(--mono);font-size:12px}
.trend-toggle button{appearance:none;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--mut);padding:5px 12px;border-radius:6px;cursor:pointer;font:inherit}
.trend-toggle button.cur{color:var(--cy);border-color:var(--line2);background:rgba(0,240,255,.1);box-shadow:0 0 14px -4px rgba(0,240,255,.5)}
.trend-meta{font-family:var(--mono);font-size:12px;color:var(--mut);width:100%}
.trend-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.trend-card{display:flex;flex-direction:column;gap:8px;padding:16px 18px;min-height:100%}
.trend-card .rank{font-family:var(--mono);font-size:12px;color:var(--cy)}
.trend-card h3{font-size:16px;font-weight:700;line-height:1.3}
.trend-card h3 a{color:#fff}.trend-card h3 a:hover{color:var(--cy)}
.trend-card .desc{font-size:13.5px;color:#bcc7da;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.55}
.trend-card .meta{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;font-family:var(--mono);font-size:12px;color:var(--mut);margin-top:auto}
.trend-card .langi{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:4px;background:var(--cy);vertical-align:middle}
.trend-card .up{color:var(--gr)}
.trend-card .badge{font-family:var(--mono);font-size:10.5px;padding:2px 7px;border-radius:999px;border:1px solid rgba(57,255,136,.45);color:var(--gr);background:rgba(57,255,136,.08)}
.row .live{font-family:var(--mono);font-size:11.5px;color:var(--mut);display:flex;gap:8px;flex-wrap:wrap}
.row .live .up{color:var(--gr)}
.row .live .ver{color:var(--cy)}
@media (max-width:760px){.trend-grid{grid-template-columns:1fr}.trend-toggle{margin-left:0;width:100%}}
a:focus-visible,button:focus-visible{outline:2px solid var(--cy);outline-offset:3px}
.scan,.hud,.slogan .emo{display:none}
.bg::before{animation:none;opacity:0}
h1.slogan,.js h1.slogan{font-weight:700;background:none;color:var(--tx);-webkit-text-fill-color:var(--tx);filter:none;animation:none;clip-path:none}
h1.slogan::after,.js h1.slogan::after{display:none}
.card::after,.card:hover::after{animation:none;opacity:0}
.nav-toggle{display:none;align-items:center;margin-left:auto;padding:6px 10px;border:0;background:transparent;color:var(--tx);font:inherit;font-size:14px;cursor:pointer}
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .top .tabs.sub-tabs{display:none}
  .top.nav-open .tabs.sub-tabs a:not(.home){display:block}
  .top .soc{margin-left:8px}
  .top.nav-open .tabs{display:flex;position:fixed;z-index:45;inset:62px 0 0;margin:0;padding:8px 24px 32px;flex-direction:column;align-items:flex-start;background:#0f1626;overflow:auto;font-family:var(--sans);font-size:22px;gap:0}
  .top.nav-open .tabs a{padding:18px 0;border-radius:0;color:var(--tx);animation:navin .5s cubic-bezier(0.22,1,0.36,1) both}
  .top.nav-open .tabs a:nth-child(2){animation-delay:.06s}
  .top.nav-open .tabs a:nth-child(3){animation-delay:.12s}
  .top.nav-open .tabs a:nth-child(4){animation-delay:.18s}
  .top.nav-open .tabs a:nth-child(5){animation-delay:.24s}
  .top.nav-open .tabs a:nth-child(6){animation-delay:.3s}
}
@keyframes navin{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.top.nav-open .tabs a{animation:none}}