:root{--primary: #F45F67;--primary-dark: #E04851;--social-blue: #1877F2;--text-primary: #121212;--text-secondary: #6B7280;--bg: #FFFFFF;--surface: #F9FAFB;--border: #E5E7EB;--border-light: #F3F4F6;--success: #10B981;--warning: #F59E0B;--info: #3B82F6}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 24px}.nav{position:sticky;top:0;z-index:100;background:#fffffff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light);padding:16px 0}.nav-content{display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:22px;color:var(--text-primary);text-decoration:none}.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),#FF8A92);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px}.nav-links{display:flex;gap:8px;align-items:center}.hero{padding:80px 0 60px;text-align:center}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:#f45f6714;border:1px solid rgba(244,95,103,.2);border-radius:24px;color:var(--primary);font-size:14px;font-weight:600;margin-bottom:24px}.hero-title{font-size:clamp(40px,6vw,64px);font-weight:800;line-height:1.1;letter-spacing:-.02em;margin-bottom:20px;background:linear-gradient(135deg,var(--text-primary),var(--text-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:clamp(18px,2.5vw,22px);color:var(--text-secondary);max-width:680px;margin:0 auto 40px;line-height:1.6}.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:48px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:12px;font-weight:600;font-size:16px;text-decoration:none;border:none;cursor:pointer;transition:all .2s ease;white-space:nowrap}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px #f45f6740}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 6px 20px #f45f6759}.btn-secondary{background:#fff;color:var(--text-primary);border:1.5px solid var(--border)}.btn-secondary:hover{border-color:var(--text-secondary);background:var(--surface)}.btn-ghost{background:transparent;color:var(--text-secondary);padding:12px 20px}.btn-ghost:hover{color:var(--text-primary)}.preview{position:relative;max-width:900px;margin:0 auto;padding:0 20px}.phone-mockup{background:linear-gradient(135deg,var(--surface),white);border:1px solid var(--border);border-radius:32px;padding:40px 24px;box-shadow:0 20px 60px #00000014}.phone-screen{background:#fff;border-radius:24px;overflow:hidden;box-shadow:0 8px 32px #0000001a}.feed-item{border-bottom:1px solid var(--border-light);padding:20px}.feed-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}.feed-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#f3f4f6,#e5e7eb)}.feed-image{width:100%;height:280px;background:linear-gradient(135deg,#f3f4f6,#e5e7eb);border-radius:16px;margin-bottom:12px}.feed-actions{display:flex;gap:16px;padding:8px 0}.feed-action{width:28px;height:28px;border-radius:50%;background:var(--surface)}.features{padding:80px 0}.section-header{text-align:center;margin-bottom:60px}.section-tag{display:inline-block;padding:6px 12px;background:#f45f6714;border-radius:8px;color:var(--primary);font-size:14px;font-weight:600;margin-bottom:12px}.section-title{font-size:clamp(32px,4vw,44px);font-weight:700;margin-bottom:16px;line-height:1.2}.section-subtitle{font-size:18px;color:var(--text-secondary);max-width:600px;margin:0 auto}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}.feature-card{background:#fff;border:1px solid var(--border);border-radius:20px;padding:32px;transition:all .3s ease}.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px #00000014;border-color:#f45f674d}.feature-icon{width:56px;height:56px;background:linear-gradient(135deg,#f45f671a,#f45f670d);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:28px;margin-bottom:20px}.feature-title{font-size:20px;font-weight:700;margin-bottom:8px;color:var(--text-primary)}.feature-text{color:var(--text-secondary);line-height:1.6}.stats-section{background:var(--surface);padding:60px 0;border-radius:32px;margin:80px 0}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;text-align:center}.stat-value{font-size:48px;font-weight:800;color:var(--primary);margin-bottom:8px;line-height:1}.stat-label{font-size:16px;color:var(--text-secondary);font-weight:500}.download-section{background:linear-gradient(135deg,var(--primary),#FF8A92);border-radius:32px;padding:80px 40px;text-align:center;color:#fff;margin:80px 0}.download-title{font-size:clamp(32px,4vw,42px);font-weight:700;margin-bottom:16px}.download-text{font-size:18px;opacity:.9;margin-bottom:32px;max-width:500px;margin-left:auto;margin-right:auto}.store-badges{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.store-badge{display:inline-flex;align-items:center;gap:12px;padding:14px 24px;background:#fff;border-radius:12px;color:var(--text-primary);text-decoration:none;font-weight:600;transition:transform .2s ease}.store-badge:hover{transform:scale(1.05)}.store-icon{width:28px;height:28px}.footer{padding:40px 0;text-align:center;color:var(--text-secondary);font-size:14px;border-top:1px solid var(--border-light)}.profile-wrap{min-height:100vh;background:var(--surface);padding:40px 20px}.profile-card{max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:24px;padding:48px;box-shadow:0 8px 32px #0000000f}.profile-header{display:flex;align-items:center;gap:24px;margin-bottom:32px}.profile-avatar-wrap{position:relative}.profile-avatar{width:96px;height:96px;border-radius:50%;border:3px solid white;box-shadow:0 4px 12px #0000001a;object-fit:cover}.profile-info{flex:1}.profile-name{font-size:28px;font-weight:700;margin-bottom:8px;color:var(--text-primary)}.profile-username{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:#f45f6714;border-radius:8px;color:var(--primary);font-weight:600;font-size:14px}.profile-divider{height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:32px 0}.profile-content{display:grid;grid-template-columns:1.5fr 1fr;gap:40px}.profile-bio{font-size:16px;color:var(--text-secondary);line-height:1.7;margin-bottom:24px}.profile-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:16px;margin-bottom:24px}.profile-stat{text-align:center}.profile-stat-value{display:block;font-size:24px;font-weight:700;color:var(--text-primary);margin-bottom:4px}.profile-stat-label{font-size:13px;color:var(--text-secondary);font-weight:500}.profile-actions{display:flex;flex-direction:column;gap:12px}.profile-qr{text-align:center}.qr-box{width:100%;aspect-ratio:1;max-width:280px;margin:0 auto 20px;background:#fff;border:2px solid var(--border);border-radius:20px;padding:16px;box-shadow:0 4px 12px #0000000f}.qr-box img{width:100%;height:100%;object-fit:contain;border-radius:12px}.qr-fallback{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--surface);border-radius:12px;color:var(--text-secondary)}.qr-label{font-size:13px;color:var(--text-secondary);margin-bottom:12px}.private-notice{display:flex;gap:16px;padding:20px;background:#fbbf2414;border:1px solid rgba(251,191,36,.2);border-radius:16px;margin-bottom:24px}.notice-icon{width:44px;height:44px;background:#fbbf2426;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.notice-content{flex:1}.notice-title{font-weight:700;margin-bottom:4px;color:var(--text-primary)}.notice-text{color:var(--text-secondary);font-size:14px}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);padding:14px 24px;background:var(--text-primary);color:#fff;border-radius:12px;box-shadow:0 8px 24px #00000026;font-weight:600;animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translate(-50%) translateY(20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@media(max-width:768px){.profile-content{grid-template-columns:1fr}.profile-header{flex-direction:column;text-align:center}.features-grid{grid-template-columns:1fr}.profile-card{padding:32px 24px}.nav-links{display:none}}.skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0,#f0f0f0 75%);background-size:200% 100%;animation:loading 1.5s ease-in-out infinite;border-radius:8px}@keyframes loading{0%{background-position:200% 0}to{background-position:-200% 0}}.skeleton-avatar{width:96px;height:96px;border-radius:50%}.skeleton-text{height:20px;width:60%;margin-bottom:12px}.skeleton-text.short{width:40%}.skeleton-block{height:120px;width:100%}