*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Microsoft YaHei UI","Segoe UI",Arial,sans-serif;background:#08101f;color:#e7edf7}
a{text-decoration:none;color:inherit}
.site-shell{min-height:100vh;background:
radial-gradient(circle at top left,rgba(47,124,255,.16),transparent 32%),
radial-gradient(circle at top right,rgba(73,206,255,.12),transparent 30%),
linear-gradient(180deg,#0b1020 0%,#091321 45%,#08101c 100%)}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.06);backdrop-filter:blur(16px);background:rgba(8,12,24,.68)}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0}
.brand{display:flex;align-items:center;gap:14px}
.brand-mark{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:14px;background:linear-gradient(135deg,#2f7cff,#49ceff);font-size:20px;font-weight:800;color:#fff;box-shadow:0 14px 28px rgba(47,124,255,.28)}
.brand-text{display:flex;flex-direction:column;gap:2px}
.brand-text strong{font-size:30px;line-height:1.1;color:#fff}
.brand-text small{font-size:12px;color:#92a3c1}
.nav{display:flex;align-items:center;gap:22px}
.nav a{font-size:14px;color:#b7c5df;transition:.2s}
.nav a:hover{color:#fff}
.header-button,.button{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;font-weight:700;transition:.2s}
.header-button{height:44px;padding:0 18px;font-size:14px;background:#2f7cff;color:#fff;box-shadow:0 10px 26px rgba(47,124,255,.24)}
.header-button:hover,.button.primary:hover{transform:translateY(-1px);background:#4b8cff}
.hero{padding:64px 0 42px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}
.hero-copy{padding:16px 0}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05);font-size:13px;color:#9fb0ce}
.hero h1{margin:18px 0 16px;font-size:54px;line-height:1.08;color:#fff;letter-spacing:.3px}
.hero-desc{margin:0 0 28px;font-size:17px;line-height:1.85;color:#b5c2d8;max-width:720px}
.hero-actions,.download-actions{display:flex;flex-wrap:wrap;gap:14px}
.button{height:52px;padding:0 22px;font-size:16px}
.button.primary{background:#2f7cff;color:#fff;box-shadow:0 14px 28px rgba(47,124,255,.22)}
.button.secondary{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);color:#d9e5f7}
.button.secondary:hover{border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.08)}
.button.large{height:56px;padding:0 28px}
.hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.meta-card,.stat-box,.feature-card,.step-card,.showcase-card,.download-card{border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.04);backdrop-filter:blur(10px)}
.meta-card{padding:16px 18px;border-radius:18px}
.meta-card span{display:block;font-size:12px;color:#94a6c6;margin-bottom:6px}
.meta-card strong{font-size:15px;color:#fff}
.hero-panel{display:flex;justify-content:flex-end}
.glass-card{width:100%;padding:28px;border-radius:26px;border:1px solid rgba(255,255,255,.1);background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));box-shadow:0 22px 56px rgba(0,0,0,.26)}
.panel-head{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-weight:700;color:#fff}
.signal{width:10px;height:10px;border-radius:50%;background:#5bf0aa;box-shadow:0 0 16px rgba(91,240,170,.7)}
.panel-list{display:grid;gap:14px}
.panel-item{padding:16px 18px;border-radius:18px;background:rgba(255,255,255,.04)}
.panel-item b{display:block;color:#fff;margin-bottom:8px}
.panel-item p{margin:0;font-size:14px;line-height:1.7;color:#aebad2}
.stats{padding:10px 0 24px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat-box{padding:22px;border-radius:20px;text-align:center}
.stat-box strong{display:block;font-size:28px;color:#fff;margin-bottom:8px}
.stat-box span{display:block;color:#9aaacc;font-size:13px}
.section{padding:72px 0}
.section.alt{background:rgba(255,255,255,.02)}
.section-heading{max-width:760px;margin-bottom:28px}
.section-heading span,.section-tag{display:inline-flex;padding:6px 12px;border-radius:999px;background:rgba(47,124,255,.12);border:1px solid rgba(47,124,255,.24);font-size:13px;color:#86b3ff}
.section-heading h2,.showcase-card h2,.download-copy h2{margin:16px 0 12px;font-size:36px;line-height:1.18;color:#fff}
.section-heading p,.download-copy p{margin:0;color:#b2bed5;line-height:1.85}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature-card{padding:26px;border-radius:22px;transition:.25s}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.16);background:rgba(255,255,255,.06)}
.icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:14px;background:linear-gradient(135deg,#2f7cff,#4ed8ff);color:#fff;font-weight:800;margin-bottom:18px}
.feature-card h3,.step-card h3{margin:0 0 10px;color:#fff;font-size:20px}
.feature-card p,.step-card p,.clean-list li{margin:0;color:#b2bed5;line-height:1.8;font-size:14px}
.showcase-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:24px;align-items:center}
.showcase-card{padding:28px;border-radius:24px}
.clean-list{margin:0;padding-left:18px;display:grid;gap:10px}
.showcase-preview{display:flex;justify-content:center}
.preview-window{width:100%;max-width:520px;border-radius:24px;border:1px solid rgba(255,255,255,.1);background:#0d1425;box-shadow:0 24px 54px rgba(0,0,0,.35);overflow:hidden}
.preview-topbar{display:flex;gap:8px;padding:14px 16px;background:#111b30;border-bottom:1px solid rgba(255,255,255,.06)}
.preview-topbar span{width:10px;height:10px;border-radius:50%;background:#ff7a7a}
.preview-topbar span:nth-child(2){background:#ffd45b}
.preview-topbar span:nth-child(3){background:#58e08e}
.preview-body{padding:20px}
.preview-line{height:16px;border-radius:10px;background:rgba(255,255,255,.08);margin-bottom:14px}
.preview-line.long{width:88%}
.preview-line.short{width:54%}
.preview-row{display:flex;gap:10px;margin:18px 0}
.preview-pill{height:38px;flex:1;border-radius:12px;background:rgba(255,255,255,.07)}
.preview-pill.active{background:#2f7cff}
.preview-console{padding:14px;border-radius:16px;background:#050812;color:#d4deef;font-family:Consolas,monospace;font-size:13px;line-height:1.85}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step-card{padding:24px;border-radius:22px}
.step-number{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#2f7cff,#4ed8ff);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;margin-bottom:16px}
.download-section{padding-bottom:84px}
.download-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:center}
.download-card{padding:22px;border-radius:24px;display:grid;gap:14px}
.download-item{padding:16px 18px;border-radius:16px;background:rgba(255,255,255,.04)}
.download-item span{display:block;color:#9fb0ce;font-size:12px;margin-bottom:7px}
.download-item strong{color:#fff;font-size:16px}
.site-footer{border-top:1px solid rgba(255,255,255,.06);padding:30px 0 46px}
.footer-row{display:flex;justify-content:space-between;gap:18px;align-items:flex-end}
.footer-row strong{color:#fff}
.footer-row p,.footer-meta span{margin:6px 0 0;color:#8ea0bf;font-size:13px}
.footer-meta{display:grid;gap:8px;text-align:right}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
.reveal.visible{opacity:1;transform:none}
@media (max-width:1080px){
.hero-grid,.showcase-grid,.download-wrap{grid-template-columns:1fr}
.hero-panel{justify-content:flex-start}
.feature-grid{grid-template-columns:repeat(2,1fr)}
.steps-grid{grid-template-columns:repeat(2,1fr)}
.hero h1{font-size:46px}
}
@media (max-width:720px){
.container{width:min(100% - 28px,1160px)}
.header-row{flex-direction:column;align-items:flex-start}
.nav{flex-wrap:wrap;gap:14px}
.header-button{width:100%}
.hero{padding-top:42px}
.hero h1{font-size:38px}
.hero-meta,.feature-grid,.steps-grid{grid-template-columns:1fr}
.hero-actions,.download-actions{flex-direction:column}
.button,.header-button{width:100%}
.footer-row{flex-direction:column;align-items:flex-start}
.footer-meta{text-align:left}
}