*{margin:0;padding:0;box-sizing:border-box}
:root{
--primary:#00e676;--primary-dark:#00c853;--accent:#ff6d00;
--bg-dark:#0a0e17;--bg-card:#111827;--bg-card-hover:#1a2332;
--text:#e0e0e0;--text-muted:#8899aa;--border:#1e293b;
--gradient:linear-gradient(135deg,#00e676 0%,#00bfa5 50%,#00897b 100%);
--gradient-accent:linear-gradient(135deg,#ff6d00 0%,#ff9100 100%);
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg-dark);color:var(--text);line-height:1.6;overflow-x:hidden}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 顶部导航 */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(10,14,23,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);transition:all .3s}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.nav-logo{font-size:20px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:1px}
.nav-links{display:flex;gap:24px;list-style:none}
.nav-links a{color:var(--text-muted);font-size:14px;font-weight:500;transition:color .3s;padding:6px 0}
.nav-links a:hover{color:var(--primary)}
.nav-cta{background:var(--gradient);color:#000;padding:8px 20px;border-radius:20px;font-weight:700;font-size:14px;transition:transform .2s,box-shadow .2s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 4px 15px rgba(0,230,118,.4);color:#000}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.nav-toggle span{width:24px;height:2px;background:var(--text);transition:.3s}

/* Hero 主图模块 */
.hero{padding:120px 0 80px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 50%,rgba(0,230,118,.08) 0%,transparent 50%),radial-gradient(circle at 70% 50%,rgba(255,109,0,.06) 0%,transparent 50%);animation:pulse 8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.5}50%{opacity:1}}
.hero-badge{display:inline-block;background:rgba(0,230,118,.15);color:var(--primary);padding:6px 16px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:24px;border:1px solid rgba(0,230,118,.3)}
.hero h1{font-size:clamp(28px,5vw,48px);font-weight:900;line-height:1.2;margin-bottom:16px;letter-spacing:-1px}
.hero h1 span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:clamp(14px,2.5vw,18px);color:var(--text-muted);max-width:600px;margin:0 auto 32px}
.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--gradient);color:#000;padding:14px 32px;border-radius:12px;font-weight:800;font-size:16px;transition:all .3s;border:none;cursor:pointer}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(0,230,118,.4)}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--text);padding:14px 32px;border-radius:12px;font-weight:700;font-size:16px;border:1px solid var(--border);transition:all .3s;cursor:pointer}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.hero-stats{display:flex;gap:40px;justify-content:center;margin-top:48px;flex-wrap:wrap}
.stat-item{text-align:center}
.stat-num{font-size:32px;font-weight:900;color:var(--primary)}
.stat-label{font-size:13px;color:var(--text-muted);margin-top:4px}

/* 通用 Section */
.section{padding:80px 0}
.section-header{text-align:center;margin-bottom:48px}
.section-header h2{font-size:clamp(24px,4vw,36px);font-weight:800;margin-bottom:12px}
.section-header h2 span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-header p{color:var(--text-muted);font-size:16px;max-width:500px;margin:0 auto}

/* 卡片模块 */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:32px;transition:all .3s;position:relative;overflow:hidden}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient);opacity:0;transition:opacity .3s}
.card:hover{transform:translateY(-4px);border-color:rgba(0,230,118,.3);box-shadow:0 12px 40px rgba(0,0,0,.3)}
.card:hover::before{opacity:1}
.card-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:20px;background:rgba(0,230,118,.1)}
.card h3{font-size:20px;font-weight:700;margin-bottom:12px}
.card p{color:var(--text-muted);font-size:14px;line-height:1.7}
.card-tag{display:inline-block;background:rgba(255,109,0,.15);color:var(--accent);padding:4px 12px;border-radius:12px;font-size:12px;font-weight:600;margin-top:16px}

/* 功能介绍 */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:24px}
.feature-row{display:flex;gap:20px;background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:28px;transition:all .3s;align-items:flex-start}
.feature-row:hover{border-color:rgba(0,230,118,.3);transform:translateX(4px)}
.feature-num{min-width:40px;height:40px;border-radius:10px;background:var(--gradient);color:#000;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:18px}
.feature-content h4{font-size:18px;font-weight:700;margin-bottom:8px}
.feature-content p{color:var(--text-muted);font-size:14px}

/* 下载模块 */
.download-section{background:linear-gradient(180deg,var(--bg-dark) 0%,rgba(0,230,118,.05) 100%);text-align:center;padding:80px 0}
.download-box{max-width:700px;margin:0 auto;background:var(--bg-card);border:1px solid var(--border);border-radius:24px;padding:48px;position:relative;overflow:hidden}
.download-box::before{content:'';position:absolute;top:-100px;right:-100px;width:300px;height:300px;background:radial-gradient(circle,rgba(0,230,118,.1) 0%,transparent 70%)}
.download-box h2{font-size:28px;font-weight:800;margin-bottom:12px}
.download-box p{color:var(--text-muted);margin-bottom:32px;font-size:16px}
.download-btn{display:inline-flex;align-items:center;gap:10px;background:var(--gradient-accent);color:#fff;padding:16px 48px;border-radius:14px;font-weight:800;font-size:18px;transition:all .3s;border:none;cursor:pointer;text-decoration:none}
.download-btn:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(255,109,0,.4)}
.download-note{margin-top:16px;font-size:13px;color:var(--text-muted)}

/* 部署教程 */
.tutorial-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.tutorial-step{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:28px;counter-increment:step}
.tutorial-step::before{content:counter(step);position:absolute;top:-10px;left:24px;background:var(--gradient);color:#000;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:16px}
.tutorial-step{position:relative}
.tutorial-step h4{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--primary)}
.tutorial-step p{color:var(--text-muted);font-size:14px;line-height:1.8}
.tutorial-step code{background:rgba(0,230,118,.1);color:var(--primary);padding:2px 8px;border-radius:4px;font-size:13px;font-family:monospace}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .3s}
.faq-item:hover{border-color:rgba(0,230,118,.3)}
.faq-q{padding:20px 24px;cursor:pointer;font-weight:600;font-size:16px;display:flex;justify-content:space-between;align-items:center;user-select:none}
.faq-q::after{content:'+';font-size:24px;color:var(--primary);transition:transform .3s;flex-shrink:0;margin-left:16px}
.faq-a{padding:0 24px 20px;color:var(--text-muted);font-size:14px;line-height:1.8;display:none}
.faq-item.active .faq-a{display:block}
.faq-item.active .faq-q::after{transform:rotate(45deg)}

/* 底部 */
.footer{background:#060a12;border-top:1px solid var(--border);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;margin-bottom:32px}
.footer-col h4{font-size:16px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--text-muted);font-size:14px;transition:color .3s}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;text-align:center;color:var(--text-muted);font-size:13px}
.footer-bottom a{color:var(--text-muted);text-decoration:underline}

/* 图标替换参考 - 使用 SVG 内嵌避免外链 */
.icon-shield{width:24px;height:24px}
.icon-eye{width:24px;height:24px}
.icon-target{width:24px;height:24px}
.icon-speed{width:24px;height:24px}
.icon-download{width:24px;height:24px}
.icon-star{width:24px;height:24px}

/* 响应式 */
@media(max-width:768px){
.nav-links{display:none;position:absolute;top:60px;left:0;right:0;background:rgba(10,14,23,.98);flex-direction:column;padding:20px;gap:16px;border-bottom:1px solid var(--border)}
.nav-links.show{display:flex}
.nav-toggle{display:flex}
.hero{padding:100px 0 60px}
.hero-stats{gap:24px}
.section{padding:60px 0}
.download-box{padding:32px 24px}
.features-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
.footer-grid{grid-template-columns:1fr}
.hero-buttons{flex-direction:column;align-items:center}
.btn-primary,.btn-secondary{width:100%;justify-content:center}
}

/* 图标 SVG 样式 */
.svg-icon{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}