:root{--pri:#6452ff;--pri2:#a78bfa;--bg:#0b0d1a;--bg2:#12152a;--card:#151930;--line:#262b4a;--ink:#e8eaf6;--ink2:#a8afc8;--ink3:#8a91b4}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,"Noto Sans SC",-apple-system,"Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;overflow-x:clip;max-width:100vw}
a{text-decoration:none;color:inherit}
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:.25s;padding:18px 0}
.nav.scrolled{background:rgba(11,13,26,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:12px 0}
.nav-in{max-width:1120px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:14px 36px;padding:0 24px}
.nav-logo{display:inline-flex;align-items:center}.nav-logo img{height:34px;width:auto;display:block}
.nav-links{display:flex;gap:28px;margin-left:auto;font-size:14px;color:var(--ink2)}
.nav-links a{transition:.15s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{padding:8px 20px;border-radius:9px;background:var(--pri);color:#fff;font-size:13.5px;font-weight:600;transition:.15s}
.nav-cta:hover{background:#7d6cff;box-shadow:0 0 24px rgba(100,82,255,.5)}
.nav-burger{display:none;width:38px;height:38px;background:none;border:1px solid var(--line);border-radius:9px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;margin-left:auto}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.mnav{display:none;position:fixed;top:64px;left:0;right:0;z-index:99;background:rgba(11,13,26,.97);backdrop-filter:blur(16px);flex-direction:column;padding:14px 24px 22px;gap:4px;border-bottom:1px solid var(--line)}
.mnav a{padding:12px 0;font-size:15px;color:var(--ink2);border-bottom:1px solid rgba(38,43,74,.5)}
.hero{min-height:100vh;display:flex;align-items:center;position:relative;padding:120px 24px 80px;overflow-x:clip}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(100,82,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(100,82,255,.06) 1px,transparent 1px);background-size:52px 52px;mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,#000 30%,transparent 75%)}
.hero-glow{position:absolute;top:-15%;left:50%;transform:translateX(-50%);width:min(900px,100vw);height:520px;background:radial-gradient(ellipse,rgba(100,82,255,.28),transparent 65%);filter:blur(40px);pointer-events:none}
.hero-glow2{position:absolute;bottom:5%;right:-8%;width:min(500px,60vw);height:400px;background:radial-gradient(ellipse,rgba(52,199,255,.12),transparent 70%);filter:blur(30px);pointer-events:none}
.hero-in>.h-left{flex:1 1 480px}
.hero-in>.ai-demo{flex:1 1 400px}
.hero-in{max-width:1120px;margin:0 auto;display:flex;flex-wrap:wrap;gap:48px 56px;align-items:center;position:relative}
.hero h1{font-size:44px;word-break:break-word;line-height:1.25;letter-spacing:-1.5px;margin-bottom:18px}
.hero .sub{font-size:16px;color:var(--ink2);max-width:540px;margin-bottom:30px}
.hero .sub b{color:var(--ink)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
@media (max-width:900px){
.hero-cta input{min-width:0;width:100%}
.hero-cta .btn-pri,.hero-cta .btn-ghost{width:100%;justify-content:center;text-align:center}
}
.hero-cta input{background:rgba(21,25,48,.7);border:1.5px solid var(--line);border-radius:12px;padding:14px 18px;font-size:15px;color:var(--ink);min-width:230px;outline:none;transition:.2s}
.hero-cta input:focus{border-color:var(--pri);box-shadow:0 0 0 3px rgba(100,82,255,.2)}
.hero-cta input::placeholder{color:#8a91b4}
.btn-pri{padding:15px 34px;background:linear-gradient(135deg,#6452ff,#8b5cf6);color:#fff;border-radius:12px;font-size:15.5px;font-weight:600;box-shadow:0 8px 32px rgba(100,82,255,.4);transition:.2s;position:relative;overflow:hidden}
.btn-pri::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.35) 50%,transparent 60%);transform:translateX(-120%);animation:sheen 3.2s infinite}
@keyframes sheen{0%{transform:translateX(-120%)}55%,100%{transform:translateX(130%)}}
.btn-pri:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(100,82,255,.55)}
.btn-ghost{padding:15px 34px;border:1.5px solid var(--line);border-radius:12px;font-size:15.5px;font-weight:600;color:var(--ink);background:rgba(21,25,48,.5);transition:.2s}
.btn-ghost:hover{border-color:var(--pri);color:#cfc9ff}
.ai-demo{background:linear-gradient(160deg,#161a34,#10132a);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:0 30px 80px rgba(0,0,0,.5);position:relative}
.ai-demo::before{content:"";position:absolute;inset:-1px;border-radius:21px;padding:1px;background:linear-gradient(135deg,rgba(100,82,255,.6),transparent 35%,transparent 65%,rgba(52,199,255,.4));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.ai-demo .who{font-size:12px;color:var(--ink3);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.ai-demo .who b{color:var(--pri2)}
.ai-q{font-size:14.5px;color:var(--ink2);background:rgba(100,82,255,.08);border:1px solid rgba(100,82,255,.2);border-radius:12px;padding:12px 16px;margin-bottom:16px}
.ai-a{font-size:13.5px;color:var(--ink2);min-height:150px}
.ai-a .hit{color:#7ef0c2;font-weight:700}
.ai-a .cursor{display:inline-block;width:7px;height:16px;background:var(--pri2);vertical-align:-2px;animation:blink .8s step-end infinite}
.ai-metrics{display:flex;gap:10px;margin-top:16px;border-top:1px solid var(--line);padding-top:16px}
.ai-m{flex:1;text-align:center}
.ai-m b{display:block;font-size:26px;font-weight:800;color:var(--ink)}
.ai-m span{font-size:11.5px;color:var(--ink3)}
@keyframes blink{50%{opacity:0}}
.stats{max-width:1120px;margin:0 auto;padding:0 24px 90px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px 16px;text-align:center;transition:.2s}
.stat:hover{border-color:var(--pri);transform:translateY(-3px);box-shadow:0 14px 40px rgba(100,82,255,.18)}
.stat b{display:block;font-size:30px;font-weight:800;letter-spacing:-1px;background:linear-gradient(135deg,#fff,#c9c4ff);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px}
.stat span{font-size:12.5px;color:var(--ink3)}
.sec{padding:90px 0}
.sec-head{text-align:center;margin-bottom:48px}
.sec-head .tag{display:inline-block;font-size:12px;color:var(--pri2);border:1px solid rgba(100,82,255,.35);border-radius:999px;padding:4px 14px;margin-bottom:14px;letter-spacing:1px}
.sec-head h2{font-size:32px;letter-spacing:-1px;margin-bottom:10px}
.sec-head p{color:var(--ink3);font-size:15px}
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;max-width:1120px;margin:0 auto;padding:0 24px}
.b-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;position:relative;overflow:hidden;transition:.25s;grid-column:span 2}
.b-card.big{grid-column:span 3}
.b-card:hover{transform:translateY(-4px);box-shadow:0 20px 50px rgba(100,82,255,.15)}
.b-card::before{content:"";position:absolute;top:0;left:-100%;width:60%;height:1px;background:linear-gradient(90deg,transparent,var(--pri2),transparent);transition:.6s}
.b-card:hover::before{left:130%}
.b-ic{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px;background:rgba(100,82,255,.14);border:1px solid rgba(100,82,255,.25);color:var(--pri2)}
.b-ic .ti{font-size:20px}
.b-card h3{font-size:16.5px;margin-bottom:8px}
.b-card p{font-size:13.5px;color:var(--ink3)}
.b-card .mini-chart{margin-top:18px;height:60px;display:flex;align-items:flex-end;gap:5px}
.b-card .mini-chart i{flex:1;background:linear-gradient(180deg,rgba(100,82,255,.8),rgba(100,82,255,.25));border-radius:4px;animation:grow 1.2s ease}
@keyframes grow{from{height:0}}
.steps{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:16px;align-items:stretch;padding:0 24px}
.step{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px 24px;transition:.25s}
.step:hover{border-color:var(--pri);transform:translateY(-4px)}
.s-num{font-size:13px;font-weight:800;color:var(--pri2);letter-spacing:2px;margin-bottom:12px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--ink3)}
.s-arrow{display:flex;align-items:center;font-size:22px;color:var(--ink3)}
.trust-grid{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:20px;padding:0 24px;align-items:stretch}
.report-mock{background:linear-gradient(160deg,#161a34,#10132a);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.rm-head{padding:14px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink2)}
.rm-head .dot{width:10px;height:10px;border-radius:99px;background:#10b981;box-shadow:0 0 12px #10b981}
.rm-body{padding:22px}
.rm-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px solid rgba(38,43,74,.5);font-size:14px}
.rm-row span{color:var(--ink3);flex:1}
.rm-row b{color:var(--ink)}
.rm-row i{font-style:normal;font-size:12px;padding:2px 10px;border-radius:99px}
.rm-row .up{color:#7ef0c2;background:rgba(126,240,194,.1)}
.rm-row .down{color:#fbbf24;background:rgba(251,191,36,.1)}
.rm-chart{margin-top:18px;height:64px;display:flex;align-items:flex-end;gap:6px}
.rm-chart i{flex:1;background:linear-gradient(180deg,rgba(100,82,255,.8),rgba(100,82,255,.25));border-radius:4px}
.quotes{display:flex;flex-direction:column;gap:16px}
.quote{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;flex:1;display:flex;flex-direction:column;justify-content:center}
.quote p{font-size:14.5px;color:var(--ink2);line-height:1.7;margin-bottom:14px}
.q-who{font-size:12px;color:var(--ink3)}
.interact{background:linear-gradient(180deg,transparent,rgba(18,21,42,.8),transparent)}
.chat{max-width:760px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:22px;overflow:hidden}
.chat-head{padding:14px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink2)}
.chat-head .dot{width:10px;height:10px;border-radius:99px;background:#10b981;box-shadow:0 0 12px #10b981}
.chat-body{padding:26px;min-height:280px}
.c-user{background:rgba(100,82,255,.12);border:1px solid rgba(100,82,255,.3);border-radius:14px;padding:13px 18px;max-width:75%;margin-left:auto;margin-bottom:18px;font-size:14.5px}
.c-ai{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:14px;padding:14px 18px;max-width:85%;font-size:14px;color:var(--ink2)}
.c-ai .hl{color:#7ef0c2;font-weight:700;border-bottom:1px dashed rgba(126,240,194,.5)}
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:1120px;margin:0 auto;padding:0 24px}
.p-card{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.25s}
.p-card:hover{transform:translateY(-4px);border-color:var(--pri)}
.p-cover{height:150px;background:linear-gradient(135deg,#1c2145,#141834);position:relative;display:flex;align-items:center;justify-content:center;font-size:36px}
.p-body{padding:20px}
.p-tag{font-size:11px;color:var(--pri2);border:1px solid rgba(100,82,255,.3);border-radius:99px;padding:2px 10px;display:inline-block;margin-bottom:10px}
.p-body h3{font-size:15.5px;margin-bottom:8px;line-height:1.45}
.p-body p{font-size:13px;color:var(--ink3);margin-bottom:14px}
.p-meta{font-size:12px;color:var(--ink3);display:flex;justify-content:space-between}
.about-box{max-width:820px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:36px 40px}
.about-box p{font-size:15px;color:var(--ink2);line-height:1.9;margin-bottom:14px}
.about-box p:last-child{margin-bottom:0}
.about-box b{color:var(--ink)}
@media (max-width:900px){
.about-box{padding:26px 22px}
}
.cta-band{max-width:1120px;margin:0 auto;padding:0 24px 100px}
.cta-in{background:linear-gradient(135deg,#1b1450,#2c1e7a 55%,#4338ca);border-radius:26px;padding:64px 40px;text-align:center;position:relative;overflow:hidden}
.cta-in::before{content:"";position:absolute;top:-60%;left:-30%;width:80%;height:200%;background:radial-gradient(ellipse,rgba(167,139,250,.25),transparent 60%);transform:rotate(25deg);animation:drift 7s ease-in-out infinite alternate}
@keyframes drift{to{transform:rotate(18deg) translateX(60px)}}
.cta-in h2{font-size:30px;margin-bottom:12px;position:relative}
.cta-in p{color:#c7c3f5;margin-bottom:30px;position:relative}
.cta-in .btn-pri{background:#fff;color:#3b2fd4;position:relative}
.cta-in .btn-pri::after{display:none}
footer{border-top:1px solid var(--line);padding:44px 24px;background:rgba(10,12,22,.6)}
.foot-in{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.foot-in h4{font-size:13px;color:var(--ink2);margin-bottom:14px;letter-spacing:.5px}
.foot-in a{display:block;font-size:13px;color:var(--ink3);margin-bottom:9px;transition:.15s}
.foot-in a:hover{color:var(--pri2)}
.foot-brand{font-size:19px;font-weight:800;margin-bottom:12px}
.foot-brand span{font-size:12px;color:var(--ink3);display:block;font-weight:400;margin-top:6px}
.copy{max-width:1120px;margin:34px auto 0;padding:18px 24px 0;border-top:1px solid var(--line);font-size:12px;color:var(--ink3);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
@media (max-width:900px){
.hero-in>.h-left,.hero-in>.ai-demo{flex:1 1 100%}
.hero .sub{font-size:14px}
.nav-in{gap:14px}
.nav-cta{margin-left:auto;padding:7px 14px;font-size:12.5px}
.nav-burger{display:flex}
.mnav.open{display:flex}
.nav-links{display:none}
.hero-in{gap:40px}
.hero h1{font-size:24px}
.hero h1 br{display:none}
.bento .b-card,.b-card.big{grid-column:span 6}
.stats{grid-template-columns:repeat(2,1fr)}
.posts{grid-template-columns:1fr}
.foot-in{grid-template-columns:1fr 1fr}
.steps{grid-template-columns:1fr}
.s-arrow{justify-content:center;transform:rotate(90deg)}
.trust-grid{grid-template-columns:1fr}
}

@media (max-width:640px){.a-list{grid-template-columns:1fr}}
/* article list/detail */
.a-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.a-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;transition:.2s;display:block}
.a-card:hover{border-color:var(--pri);transform:translateY(-2px)}
.a-card .p-cover{font-size:34px;margin-bottom:12px}
.a-card h3{color:#fff;font-size:16px;margin:8px 0}
.a-card p{color:var(--ink2);font-size:13px;margin:0}
.a-card .p-tag{display:inline-block;font-size:11px;color:var(--pri2);background:rgba(100,82,255,.12);border-radius:6px;padding:2px 8px}
.a-card .p-meta{display:flex;gap:10px;color:var(--ink3);font-size:12px;margin-top:10px}
.a-wrap{max-width:860px;margin:0 auto;padding:110px 24px 80px;min-height:70vh}
.a-wrap h1{color:#fff;font-size:32px;line-height:1.35;margin:14px 0}
.a-meta{color:var(--ink3);font-size:13px;margin-bottom:28px}
.a-content{color:var(--ink2);font-size:15.5px;line-height:1.9}
.a-content h2{color:#fff;font-size:22px;margin:32px 0 12px}
.a-content h3{color:#fff;font-size:18px;margin:24px 0 10px}
.a-content p{margin:0 0 14px}
.a-content ul,.a-content ol{margin:0 0 14px;padding-left:22px}
.a-content a{color:var(--pri2);border-bottom:1px solid rgba(124,108,255,.4)}
.a-content blockquote{border-left:3px solid var(--pri);margin:16px 0;padding:4px 16px;color:var(--ink3)}
.a-content code{background:rgba(255,255,255,.06);padding:2px 6px;border-radius:4px;font-size:.9em}
.a-content pre{background:rgba(255,255,255,.05);padding:14px;border-radius:10px;overflow:auto}
.a-empty{color:var(--ink3);text-align:center;padding:60px 0}
.back-link{color:var(--ink3);font-size:14px}
.back-link:hover{color:#fff}
.a-pager{display:flex;gap:10px;justify-content:center;margin-top:32px}
.a-pager span{padding:8px 14px;border:1px solid var(--line);border-radius:8px;color:var(--ink2)}

html{scroll-behavior:smooth}
section[id]{scroll-margin-top:80px}

.back-to-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;background:var(--pri);color:#fff;border:0;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;opacity:0;pointer-events:none;transition:.25s;z-index:90;box-shadow:0 8px 24px rgba(100,82,255,.4)}
.back-to-top.visible{opacity:1;pointer-events:auto}