:root{--color-bg:#0a1929;--color-bg-soft:#0f2238;--color-bg-card:#142a45;--color-border:rgba(0,212,255,.15);--color-border-hover:rgba(0,212,255,.45);--color-primary:#00d4ff;--color-primary-soft:#4dd0e1;--color-text:#e6f7ff;--color-text-soft:#8aa4c2;--color-text-mute:#5a7a99;--shadow-glow:0 0 40px rgba(0,212,255,.15);--radius:12px;--max-width:1200px;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif}*{margin:0;padding:0;box-sizing:border-box}body,html{background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}a{text-decoration:none}a,button{color:inherit}button{font-family:inherit;cursor:pointer;border:none;background:none}img{max-width:100%;display:block}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:rgba(10,25,41,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border)}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px}.brand{gap:12px;font-weight:600;letter-spacing:.5px}.brand,.brand-logo{display:flex;align-items:center;font-size:18px}.brand-logo{width:36px;height:36px;border-radius:8px;background:linear-gradient(135deg,#00d4ff,#0078ff);justify-content:center;color:#0a1929;font-weight:800;box-shadow:0 0 16px rgba(0,212,255,.4)}.nav{display:flex;gap:32px}.nav a{color:var(--color-text-soft);font-size:15px;transition:color .2s}.nav a:hover{color:var(--color-primary)}.hero{position:relative;min-height:calc(100vh - 68px);display:flex;align-items:center;overflow:hidden}.hero:before{background:radial-gradient(circle at 20% 30%,rgba(0,212,255,.15),transparent 50%),radial-gradient(circle at 80% 70%,rgba(0,120,255,.12),transparent 50%)}.hero:after,.hero:before{content:"";position:absolute;inset:0;pointer-events:none}.hero:after{background-image:linear-gradient(rgba(0,212,255,.04) 1px,transparent 0),linear-gradient(90deg,rgba(0,212,255,.04) 1px,transparent 0);background-size:60px 60px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 80%)}.hero-content{position:relative;z-index:1;max-width:820px}.hero-tag{display:inline-block;padding:6px 14px;border:1px solid var(--color-border-hover);border-radius:999px;font-size:13px;color:var(--color-primary);margin-bottom:24px;background:rgba(0,212,255,.06)}.hero h1{font-size:clamp(36px,5.5vw,64px);font-weight:700;line-height:1.15;letter-spacing:-.5px;margin-bottom:20px;background:linear-gradient(120deg,#fff,#00d4ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-sub{font-size:clamp(16px,1.8vw,20px);color:var(--color-text-soft);margin-bottom:40px;max-width:640px}.hero-actions{display:flex;gap:16px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:var(--radius);font-size:15px;font-weight:500;transition:all .2s}.btn-primary{background:linear-gradient(135deg,#00d4ff,#0078ff);color:#0a1929;box-shadow:0 8px 24px rgba(0,212,255,.25)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,212,255,.35)}.btn-ghost{background:transparent;color:var(--color-text);border:1px solid var(--color-border-hover)}.btn-ghost:hover{background:rgba(0,212,255,.08);border-color:var(--color-primary)}.section{padding:100px 0;position:relative}.section-head{text-align:center;margin-bottom:64px}.section-eyebrow{display:inline-block;font-size:13px;color:var(--color-primary);letter-spacing:2px;text-transform:uppercase;margin-bottom:12px}.section-title{font-size:clamp(28px,3.5vw,40px);font-weight:700;margin-bottom:16px}.section-desc{color:var(--color-text-soft);max-width:640px;margin:0 auto;font-size:16px}.about{background:var(--color-bg-soft)}.about-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:60px;gap:60px;align-items:center}.about-text p{color:var(--color-text-soft);margin-bottom:16px;font-size:16px}.about-text strong{color:var(--color-primary);font-weight:600}.about-stats{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:20px;gap:20px}.stat-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius);padding:28px 24px;transition:all .25s}.stat-card:hover{border-color:var(--color-border-hover);transform:translateY(-4px);box-shadow:var(--shadow-glow)}.stat-num{font-size:36px;font-weight:700;color:var(--color-primary);margin-bottom:6px}.stat-label{font-size:14px;color:var(--color-text-soft)}.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-gap:24px;gap:24px}.service-card{position:relative;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius);padding:36px 28px;transition:all .3s;overflow:hidden}.service-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--color-primary),transparent);opacity:0;transition:opacity 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a:hover{color:var(--color-primary)}.beian-sep{margin:0 8px;color:var(--color-text-mute)}@media (max-width:860px){.nav{display:none}.about-grid{grid-template-columns:1fr;gap:40px}.section{padding:70px 0}.hero{min-height:80vh}}@media (max-width:480px){.hero-actions{flex-direction:column;align-items:stretch}.btn{justify-content:center}.stat-num{font-size:28px}}