*{margin:0;padding:0;box-sizing:border-box}
:root{--primary-color:#e05645;--primary-dark:#c94536;--primary-light:#f57b6c;--accent-color:#f9a86c;--text-primary:#1a1a1a;--text-secondary:#595959;--text-light:#8c8c8c;--bg-primary:#faf8f6;--bg-secondary:#f5f0eb;--bg-card:#ffffff;--bg-dark:#f0ebe5;--border-color:#e8e0d8;--shadow-sm:0 1px 2px 0 rgba(224,86,69,0.08);--shadow-md:0 4px 6px -1px rgba(224,86,69,0.12);--shadow-lg:0 10px 15px -3px rgba(224,86,69,0.15);--shadow-xl:0 20px 25px -5px rgba(224,86,69,0.18);--gradient-primary:linear-gradient(135deg,#e05645 0%,#f9a86c 100%);--gradient-hero:linear-gradient(135deg,#e05645 0%,#f57b6c 50%,#f9a86c 100%);--badge-bg:rgba(224,86,69,0.08);--badge-border:rgba(224,86,69,0.2)}
[data-theme=dark]{--text-primary:#f5f5f5;--text-secondary:#a0a0a0;--text-light:#6c6c6c;--bg-primary:#0f0f0f;--bg-secondary:#1a1a1a;--bg-card:#1f1f1f;--bg-dark:#141414;--border-color:#2a2a2a;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.3);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.4);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.5);--shadow-xl:0 20px 25px -5px rgba(0,0,0,0.6);--badge-bg:rgba(224,86,69,0.15);--badge-border:rgba(224,86,69,0.3)}
[data-theme=dark] .hero-title{color:var(--text-primary)}
[data-theme=dark] .logo-text{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
[data-theme=dark] .feature-card,[data-theme=dark] .scenario-card,[data-theme=dark] .device-card{background:var(--bg-card);color:var(--text-primary)}
[data-theme=dark] .feature-card h3,[data-theme=dark] .scenario-card h3,[data-theme=dark] .local-text h3,[data-theme=dark] .device-label{color:var(--text-primary)}
[data-theme=dark] .data-item{background:var(--bg-secondary);color:var(--text-secondary)}
[data-theme=dark] .theme-toggle{background:var(--bg-secondary);border-color:var(--border-color)}
[data-theme=dark] .footer{background:var(--bg-dark);border-top-color:var(--border-color)}
[data-theme=dark] .footer-bottom p{color:var(--text-light)}
[data-theme=dark] .local-deploy{background:var(--bg-secondary)}
[data-theme=dark] .local-list p{color:var(--text-secondary)}
[data-theme=dark] .scenario-tab{background:var(--bg-card);border-color:var(--border-color);color:var(--text-secondary)}
[data-theme=dark] .scenario-tab:hover{border-color:var(--primary-color);color:var(--primary-color)}
[data-theme=dark] .scenario-tab.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}
[data-theme=dark] .device-shield{background:var(--badge-bg);color:var(--primary-color);border-color:var(--badge-border)}
[data-theme=dark] .stat-label{color:var(--text-light)}
[data-theme=dark] .section-subtitle{color:var(--text-secondary)}
[data-theme=dark] .hero-badge{background:var(--badge-bg);color:var(--primary-color);border-color:var(--badge-border)}
[data-theme=dark] .footer-column a:hover{color:#fff}
[data-theme=dark] .navbar{background:rgba(15,15,15,0.9)}
[data-theme=dark] .download-btn-inline .download-version{color:rgba(255,255,255,0.7)}
[data-theme=dark] .download-note{color:var(--text-light)}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text-primary);background:var(--bg-primary);line-height:1.6;overflow-x:hidden}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(250,248,246,0.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);transition:all 0.3s ease}
.navbar.scrolled{box-shadow:var(--shadow-md)}
.nav-container{display:flex;justify-content:space-between;align-items:center;height:72px}
.nav-right{display:flex;align-items:center;gap:16px}
.logo{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:700;color:var(--text-primary);cursor:pointer}
.logo-icon{width:48px;height:48px;animation:foxWiggle 2s ease-in-out infinite;filter:drop-shadow(0 0 10px rgba(255,107,107,0.15))}
.logo-text{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
@keyframes foxWiggle{0%,100%{transform:rotate(0deg)}25%{transform:rotate(-5deg)}75%{transform:rotate(5deg)}}
.nav-links{display:flex;align-items:center;gap:40px;list-style:none;margin-right:16px}
.nav-links a{text-decoration:none;color:var(--text-secondary);font-weight:500;transition:color 0.3s ease;position:relative}
.nav-links a:not(.btn-primary):hover{color:var(--primary-color)}
.nav-links a:not(.btn-primary)::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--primary-color);transition:width 0.3s ease}
.nav-links a:not(.btn-primary):hover::after{width:100%}
.btn-primary{background:var(--primary-color);color:#fff!important;padding:12px 28px;border-radius:10px;font-weight:600;transition:all 0.3s ease;box-shadow:var(--shadow-md);border:none;text-decoration:none;display:inline-block}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.theme-toggle{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;cursor:pointer;transition:all 0.3s ease;margin-right:16px}
.theme-toggle:hover{background:var(--primary-color);border-color:var(--primary-color);transform:rotate(15deg)}
.theme-icon{width:20px;height:20px;transition:opacity 0.3s ease}
.theme-icon-dark{display:none}
[data-theme=dark] .theme-icon-light{display:none}
[data-theme=dark] .theme-icon-dark{display:block}
.mobile-menu-btn{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--text-primary)}
.hero{padding:120px 0 80px;background:var(--bg-primary);position:relative;overflow:hidden}
.hero-container{text-align:center}
.hero-badge{display:inline-block;background:var(--badge-bg);color:var(--primary-color);padding:8px 16px;border-radius:20px;font-size:14px;font-weight:600;margin-bottom:20px;border:1px solid var(--badge-border)}
.hero-title{font-size:56px;font-weight:700;line-height:1.2;margin-bottom:20px;color:var(--text-primary)}
.hero-title .highlight{color:var(--primary-color)}
.hero-subtitle{font-size:18px;color:var(--text-secondary);margin-bottom:32px;line-height:1.7}
.hero-stats{display:flex;gap:60px;justify-content:center;margin-top:48px}
.stat{display:flex;flex-direction:column;align-items:center}
.stat-number{font-size:36px;font-weight:700;color:var(--primary-color)}
.stat-label{font-size:14px;color:var(--text-secondary);margin-top:4px}
.download-inline{margin:20px 0}
.download-buttons-inline{display:flex;gap:16px;margin-bottom:16px;flex-wrap:wrap;justify-content:center}
.download-btn-inline{flex:1;min-width:200px;max-width:300px;background:var(--primary-color);color:#fff;border:none;padding:16px 20px;border-radius:12px;display:flex;align-items:center;gap:12px;cursor:pointer;transition:all 0.3s ease;box-shadow:var(--shadow-md);text-decoration:none;justify-content:center}
.download-btn-inline:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.download-btn-inline .download-icon-img{width:28px;height:28px}
.download-btn-inline .download-info{display:flex;flex-direction:column;align-items:flex-start}
.download-btn-inline .download-os{font-size:15px;font-weight:600}
.download-btn-inline .download-version{font-size:12px;color:rgba(255,255,255,0.85)}
.download-note{font-size:13px;color:var(--text-light);text-align:center;margin-top:12px}
section{padding:100px 0}
.section-header{text-align:center;margin-bottom:60px}
.section-title{font-size:40px;font-weight:700;margin-bottom:16px;color:var(--text-primary)}
.section-subtitle{font-size:18px;color:var(--text-secondary)}
.features{background:var(--bg-dark);position:relative}
.features::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background-image:linear-gradient(rgba(255,107,107,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,107,107,0.03) 1px,transparent 1px);background-size:50px 50px;pointer-events:none;opacity:0.5}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.feature-card{padding:32px;background:var(--bg-card);border-radius:16px;transition:all 0.3s ease;border:1px solid var(--border-color)}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--primary-light)}
.feature-icon{font-size:40px;width:64px;height:64px;display:flex;align-items:center;justify-content:center;background:var(--badge-bg);border-radius:12px;margin-bottom:20px}
.feature-card h3{font-size:20px;font-weight:600;margin-bottom:12px;color:var(--text-primary)}
.feature-card p{color:var(--text-secondary);line-height:1.7}
.feature-badge{display:inline-block;background:var(--badge-bg);color:var(--primary-color);padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600;margin-bottom:16px}
.local-deploy{background:var(--bg-secondary);padding:100px 0}
.local-content{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center}
.local-text h3{font-size:28px;font-weight:700;margin-bottom:32px;color:var(--text-primary)}
.local-list{list-style:none}
.local-list li{display:flex;gap:16px;margin-bottom:24px}
.local-icon{font-size:32px;width:56px;height:56px;background:var(--badge-bg);border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.local-list strong{display:block;font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:4px}
.local-list p{font-size:15px;color:var(--text-secondary);line-height:1.6}
.local-visual{display:flex;justify-content:center}
.device-card{padding:40px;border-radius:20px;box-shadow:var(--shadow-lg);background:rgba(255,255,255,0.5);text-align:center;border:1px solid var(--border-color);max-width:360px}
.device-icon{font-size:72px;margin-bottom:16px}
.device-label{font-size:20px;font-weight:700;color:var(--text-primary);margin-bottom:24px}
.device-data{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:24px}
.data-item{background:var(--bg-secondary);padding:8px 16px;border-radius:20px;font-size:14px;color:var(--text-secondary);border:1px solid var(--border-color)}
.device-shield{background:var(--badge-bg);color:var(--primary-color);padding:12px 24px;border-radius:12px;font-weight:600;display:inline-block;border:1px solid var(--badge-border)}
.scenarios{background:var(--bg-primary)}
.scenario-tabs{display:flex;justify-content:center;gap:12px;margin-bottom:40px;flex-wrap:wrap}
.scenario-tab{padding:12px 24px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:24px;font-size:15px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all 0.3s ease}
.scenario-tab:hover{border-color:var(--primary-color);color:var(--primary-color);transform:translateY(-2px)}
.scenario-tab.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color);box-shadow:var(--shadow-md)}
.scenario-group{display:none}
.scenario-group.active{display:block;animation:fadeInUp 0.5s ease-out}
.scenarios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{padding:28px;background:var(--bg-card);border-radius:16px;border:1px solid var(--border-color);transition:all 0.3s ease;display:flex;flex-direction:column}
.scenario-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl);border-color:var(--primary-light)}
.scenario-icon{font-size:40px;margin-bottom:16px}
.scenario-card h3{font-size:18px;font-weight:600;margin-bottom:12px;color:var(--text-primary);line-height:1.4}
.scenario-card p{color:var(--text-secondary);line-height:1.6;font-size:14px;flex:1}
.footer{background:var(--bg-dark);padding:30px 0;border-top:1px solid var(--border-color)}
.footer-bottom{text-align:center}
.footer-bottom p{color:var(--text-light);font-size:16px;line-height:1.5}
.footer-bottom a.link{color:var(--text-light);text-decoration:none;font-size:14px}
.footer-bottom a.link:hover{color:var(--primary-color)}
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.feature-card,.scenario-card{opacity:0;animation:fadeInUp 0.6s ease-out forwards}
.feature-card:nth-child(1){animation-delay:0.1s}
.feature-card:nth-child(2){animation-delay:0.2s}
.feature-card:nth-child(3){animation-delay:0.3s}
.feature-card:nth-child(4){animation-delay:0.4s}
.feature-card:nth-child(5){animation-delay:0.5s}
.feature-card:nth-child(6){animation-delay:0.6s}
.scenario-card:nth-child(1){animation-delay:0.1s}
.scenario-card:nth-child(2){animation-delay:0.2s}
.scenario-card:nth-child(3){animation-delay:0.3s}
.scenario-card:nth-child(4){animation-delay:0.4s}
.scenario-card:nth-child(5){animation-delay:0.5s}
.scenario-card:nth-child(6){animation-delay:0.6s}
.scenario-card:nth-child(7){animation-delay:0.7s}
.scroll-top-btn{position:fixed;bottom:30px;right:30px;width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,#6366f1 0%,#0ea5e9 100%);color:#fff;border:none;font-size:24px;cursor:pointer;opacity:0;visibility:hidden;transition:all 0.3s ease;box-shadow:0 4px 20px rgba(99,102,241,0.4);z-index:999}
.scroll-top-btn:hover{transform:scale(1.1)}
@media(max-width:1024px){.features-grid{grid-template-columns:repeat(2,1fr)}.scenarios-grid{grid-template-columns:repeat(2,1fr)}.local-content{grid-template-columns:1fr}.download-buttons-inline{flex-direction:column;align-items:center}.download-btn-inline{width:100%;max-width:400px}}
@media(max-width:768px){.nav-links{display:none}.theme-toggle{display:none}.mobile-menu-btn{display:block}.nav-right{display:flex;align-items:center}.hero-title{font-size:36px}.section-title{font-size:32px}.hero-stats{gap:30px;flex-wrap:wrap}.scenario-tabs{justify-content:flex-start;overflow-x:auto;padding-bottom:8px}.scenario-tab{white-space:nowrap}.features-grid{grid-template-columns:1fr}.scenarios-grid{grid-template-columns:1fr}}