:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #818cf8;--secondary: #ec4899;--accent: #14b8a6;--success: #10b981;--gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 4rem;--spacing-3xl: 6rem;--radius-sm: .5rem;--radius-md: 1rem;--radius-lg: 1.5rem;--radius-xl: 2rem;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1);--shadow-glow: 0 0 40px rgba(99, 102, 241, .3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg)}.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:#0f172acc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.1);padding:.5rem 0}.navbar .container{display:flex;justify-content:space-between;align-items:center}.nav-brand{display:flex;align-items:center;font-size:1.5rem;font-weight:700;color:var(--text-primary);text-decoration:none}.brand-name{background:linear-gradient(135deg,#667eea,#764ba2,#f093fb);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:800;letter-spacing:-.5px;position:relative;line-height:1;display:flex;align-items:center}.brand-dot{color:#ec4899;-webkit-text-fill-color:#ec4899;font-weight:900;animation:pulse-dot 2s ease-in-out infinite}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.2)}}.logo-icon{width:128px;height:64px;flex-shrink:0;object-fit:contain}.nav-links{display:flex;gap:var(--spacing-lg);align-items:center}.nav-links a{color:var(--text-secondary);text-decoration:none;font-weight:500;transition:color .3s}.nav-links a:hover{color:var(--primary-light)}.lang-switcher{display:flex;gap:.5rem;padding:.5rem;background:#ffffff0d;border-radius:var(--radius-sm)}.lang-btn{padding:.25rem .75rem;background:transparent;border:none;color:var(--text-secondary);cursor:pointer;border-radius:.25rem;font-size:.875rem;font-weight:500;transition:all .3s}.lang-btn.active{background:var(--primary);color:#fff}.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding-top:80px;overflow:hidden}.hero-background{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0}.gradient-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.3;animation:float 20s infinite ease-in-out}.orb-1{width:500px;height:500px;background:var(--gradient-primary);top:-10%;right:-10%;animation-delay:0s}.orb-2{width:400px;height:400px;background:var(--gradient-secondary);bottom:-10%;left:-10%;animation-delay:7s}.orb-3{width:300px;height:300px;background:var(--gradient-accent);top:50%;left:50%;transform:translate(-50%,-50%);animation-delay:14s}@keyframes float{0%,to{transform:translate(0) scale(1)}33%{transform:translate(30px,-30px) scale(1.1)}66%{transform:translate(-20px,20px) scale(.9)}}.hero-content{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-3xl);align-items:center}.hero-title{font-size:4rem;font-weight:800;line-height:1.1;margin-bottom:var(--spacing-lg)}.title-line{display:block}.gradient-text{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);margin-bottom:var(--spacing-xl);line-height:1.8}.hero-buttons{display:flex;gap:var(--spacing-md);margin-bottom:var(--spacing-2xl)}.btn{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:1rem 2rem;border-radius:var(--radius-md);font-weight:600;font-size:1.125rem;text-decoration:none;transition:all .3s;cursor:pointer}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-glow)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 60px #6366f180}.btn-secondary{background:#ffffff1a;color:var(--text-primary);border:1px solid rgba(255,255,255,.2)}.btn-secondary:hover{background:#ffffff26;border-color:#ffffff4d}.btn-icon{width:20px;height:20px;stroke-width:2.5}.hero-stats{display:flex;gap:var(--spacing-xl)}.stat-item{text-align:center}.stat-number{font-size:2.5rem;font-weight:800;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{color:var(--text-muted);font-size:.875rem;margin-top:.5rem}.app-preview{perspective:1000px}.preview-window{background:#ffffff0d;border-radius:var(--radius-xl);border:1px solid rgba(255,255,255,.1);overflow:hidden;transform:rotateY(-15deg) rotateX(10deg);transition:transform .6s;box-shadow:var(--shadow-xl)}.preview-window:hover{transform:rotateY(0) rotateX(0)}.window-header{padding:var(--spacing-md);background:#ffffff08;border-bottom:1px solid rgba(255,255,255,.1)}.window-dots{display:flex;gap:.5rem}.window-dots span{width:12px;height:12px;border-radius:50%;background:#fff3}.window-content{padding:var(--spacing-lg)}.preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-md)}.preview-card{aspect-ratio:16/9;background:linear-gradient(135deg,#6366f133,#ec489933);border-radius:var(--radius-md);animation:pulse 2s infinite ease-in-out}.preview-card:nth-child(2){animation-delay:.5s}.preview-card:nth-child(3){animation-delay:1s}.preview-card:nth-child(4){animation-delay:1.5s}@keyframes pulse{0%,to{opacity:.5}50%{opacity:1}}.features{padding:var(--spacing-3xl) 0;background:var(--bg-secondary)}.section-header{text-align:center;margin-bottom:var(--spacing-3xl)}.section-title{font-size:3rem;font-weight:800;margin-bottom:var(--spacing-md)}.section-subtitle{font-size:1.25rem;color:var(--text-secondary)}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-lg)}.feature-card{padding:var(--spacing-xl);background:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);transition:all .3s}.feature-card:hover{transform:translateY(-8px);background:#ffffff0d;border-color:var(--primary);box-shadow:0 0 30px #6366f133}.feature-icon{width:48px;height:48px;margin-bottom:var(--spacing-md);stroke-width:2;color:var(--primary-light)}.feature-title{font-size:1.25rem;font-weight:700;margin-bottom:var(--spacing-sm)}.feature-description{color:var(--text-secondary);line-height:1.7}.modes{padding:var(--spacing-3xl) 0}.modes-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-xl)}.mode-card{padding:var(--spacing-xl);background:#ffffff08;border:2px solid rgba(255,255,255,.1);border-radius:var(--radius-xl);transition:all .3s}.mode-card:hover{transform:translateY(-8px);border-color:var(--primary)}.mode-card-highlight{background:linear-gradient(135deg,#6366f11a,#ec48991a);border-color:var(--primary)}.mode-badge{display:inline-block;padding:.5rem 1rem;background:#ffffff1a;border-radius:var(--radius-sm);font-size:.875rem;font-weight:600;margin-bottom:var(--spacing-md)}.mode-badge-primary{background:var(--gradient-primary)}.mode-title{font-size:2rem;font-weight:800;margin-bottom:var(--spacing-sm)}.mode-subtitle{color:var(--text-secondary);margin-bottom:var(--spacing-lg)}.mode-features{margin-bottom:var(--spacing-lg)}.mode-feature{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) 0}.mode-feature svg{width:20px;height:20px;color:var(--success);flex-shrink:0}.mode-use-case{padding:var(--spacing-md);background:#ffffff0d;border-radius:var(--radius-md);font-size:.875rem;color:var(--text-secondary)}.modes-grid-extended{grid-template-columns:1fr 1fr;gap:var(--spacing-xl)}.mode-card-tools{grid-column:1 / -1;background:linear-gradient(135deg,#14b8a60d,#6366f10d);border-color:#14b8a64d}.mode-badge-tools{background:linear-gradient(135deg,#14b8a6,#0d9488)}.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-md);margin-top:var(--spacing-lg)}.tool-item{display:flex;align-items:flex-start;gap:var(--spacing-sm);padding:var(--spacing-md);background:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);transition:all .3s}.tool-item:hover{background:#ffffff0f;border-color:var(--accent);transform:translateY(-4px);box-shadow:0 4px 12px #14b8a633}.tool-icon{width:40px;height:40px;min-width:40px;background:#14b8a61a;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--accent)}.tool-icon svg{width:20px;height:20px;stroke-width:2}.tool-content{flex:1}.tool-title{font-size:.95rem;font-weight:600;margin-bottom:.25rem;color:var(--text-primary)}.tool-desc{font-size:.8rem;color:var(--text-muted);line-height:1.4}.download{padding:var(--spacing-3xl) 0;background:var(--bg-secondary)}.download-content{text-align:center}.download-title{font-size:3rem;font-weight:800;margin-bottom:var(--spacing-md)}.download-subtitle{font-size:1.25rem;color:var(--text-secondary);margin-bottom:var(--spacing-xl)}.download-info{display:flex;justify-content:center;gap:var(--spacing-xl);margin-bottom:var(--spacing-2xl)}.info-item{display:flex;align-items:center;gap:var(--spacing-xs);color:var(--text-secondary)}.info-item svg{width:20px;height:20px;color:var(--success)}.download-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-md);margin-bottom:var(--spacing-lg);max-width:900px;margin-left:auto;margin-right:auto}.download-btn{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-lg);background:#ffffff0d;border:2px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);text-decoration:none;color:var(--text-primary);transition:all .3s}.download-btn:hover{transform:translateY(-4px);background:#ffffff14;border-color:var(--primary);box-shadow:0 0 30px #6366f14d}.download-btn-icon{width:48px;height:48px}.download-btn-icon svg{width:100%;height:100%}.download-btn-text{text-align:center}.download-btn-label{font-size:1rem;font-weight:700;margin-bottom:.25rem}.download-btn-meta{font-size:.75rem;color:var(--text-muted)}.download-version{color:var(--text-muted);font-size:.875rem}.footer{position:relative;padding:var(--spacing-3xl) 0 var(--spacing-2xl);background:linear-gradient(180deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);border-top:1px solid rgba(255,255,255,.1);overflow:hidden}.footer:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent 0%,var(--primary) 20%,var(--secondary) 50%,var(--accent) 80%,transparent 100%);opacity:.6}.footer:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:600px;height:300px;background:radial-gradient(ellipse at center,rgba(99,102,241,.1) 0%,transparent 70%);pointer-events:none}.footer-main{position:relative;z-index:1;display:grid;grid-template-columns:2fr 1fr 1fr;gap:var(--spacing-3xl);margin-bottom:var(--spacing-2xl);padding-bottom:var(--spacing-2xl);border-bottom:1px solid rgba(255,255,255,.05)}.footer-brand-section{display:flex;flex-direction:column;gap:var(--spacing-md)}.footer-logo{width:200px;height:100px;object-fit:contain;filter:drop-shadow(0 0 20px rgba(99,102,241,.3));transition:transform .3s ease}.footer-logo:hover{transform:scale(1.05)}.footer-slogan{color:var(--text-secondary);font-size:.9rem;line-height:1.8;margin:0}.footer-section{display:flex;flex-direction:column}.footer-section-title{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-md)}.footer-menu{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:var(--spacing-sm)}.footer-menu li a{color:var(--text-secondary);text-decoration:none;font-size:.875rem;transition:all .3s ease;display:inline-block}.footer-menu li a:hover{color:var(--primary-light);transform:translate(4px)}.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:var(--spacing-md)}.contact-item{display:flex;align-items:center;gap:var(--spacing-sm)}.contact-item svg{width:18px;height:18px;color:var(--primary-light);flex-shrink:0}.contact-item a,.contact-item span{color:var(--text-secondary);text-decoration:none;font-size:.875rem;transition:color .3s ease}.contact-item a:hover{color:var(--primary-light)}.footer-social{display:flex;align-items:center;justify-content:flex-start}.social-qrcode{width:120px;height:auto;border-radius:var(--radius-md);border:2px solid rgba(255,255,255,.1);background:#ffffff0d;padding:.5rem;transition:all .3s ease;box-shadow:0 4px 12px #0000001a}.social-qrcode:hover{transform:scale(1.05);border-color:var(--primary);box-shadow:0 6px 20px #6366f133}.footer-bottom{position:relative;z-index:1;text-align:center;padding-top:var(--spacing-lg);color:var(--text-muted);font-size:.875rem}.footer-bottom p{margin:.25rem 0;line-height:1.8}.icp-info{margin-top:.75rem;font-size:.75rem;display:flex;align-items:center;justify-content:center;gap:.5rem}.icp-info a{color:var(--text-muted);text-decoration:none;padding:.25rem .5rem;border-radius:4px;transition:all .3s ease}.icp-info a:hover{color:var(--primary-light);background:#6366f11a}@media (max-width: 968px){.hero-content{grid-template-columns:1fr;text-align:center}.hero-title{font-size:3rem}.hero-buttons,.hero-stats{justify-content:center}.features-grid{grid-template-columns:repeat(2,1fr)}.modes-grid,.modes-grid-extended{grid-template-columns:1fr}.tools-grid{grid-template-columns:repeat(2,1fr)}.download-buttons{flex-direction:column;align-items:center}.download-buttons{grid-template-columns:1fr;max-width:100%}.footer-main{grid-template-columns:repeat(2,1fr);gap:var(--spacing-2xl)}.footer-brand-section{grid-column:1 / -1;text-align:center;align-items:center}.footer-logo{width:160px;height:80px}}@media (max-width: 640px){.hero-title,.section-title{font-size:2rem}.features-grid,.tools-grid{grid-template-columns:1fr}.nav-links{display:none}.footer-main{grid-template-columns:1fr;gap:var(--spacing-2xl)}.footer-brand-section{text-align:center;align-items:center}.footer-logo{width:140px;height:70px}.footer-section{text-align:center}.footer-contact{align-items:center}.footer-social{max-width:200px;margin:0 auto}}