body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}:root{--primary: #0d6efd;--primary-dark: #0b5ed7;--primary-light: #e7f1ff;--green: #198754;--purple: #6f42c1;--dark: #1a1a2e;--gray-50: #f8f9fa;--gray-100: #f1f3f5;--gray-200: #e9ecef;--gray-400: #ced4da;--gray-600: #6c757d;--gray-800: #343a40;--radius: 12px;--radius-lg: 20px;--shadow-sm: 0 2px 8px rgba(0,0,0,.06);--shadow-md: 0 4px 20px rgba(0,0,0,.08);--shadow-lg: 0 8px 40px rgba(0,0,0,.12);--transition: all .3s ease}*{box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--gray-800);line-height:1.6;overflow-x:hidden}a{text-decoration:none;color:inherit}img{max-width:100%}#mainNav{background:#fffffff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:var(--transition);padding:12px 0}#mainNav.scrolled{border-bottom-color:var(--gray-200);box-shadow:var(--shadow-sm);padding:8px 0}.navbar-brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.25rem}.brand-icon{width:36px;height:36px;border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center}.brand-logo{width:36px;height:36px;max-width:36px;max-height:36px;object-fit:cover}.brand-text{color:var(--dark)}.nav-link{font-weight:500;color:var(--gray-600)!important;padding:8px 16px!important;border-radius:8px;transition:var(--transition)}.nav-link:hover,.nav-link.active{color:var(--primary)!important;background:var(--primary-light)}.btn-download{background:var(--primary);color:#fff!important;font-weight:600;padding:8px 20px;border-radius:8px;font-size:.9rem;transition:var(--transition)}.btn-download:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px #0d6efd4d}#hero{position:relative;min-height:100vh;display:flex;align-items:center;padding-top:80px;overflow:hidden}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,#f0f4ff,#e8f0fe,#f8f9fa);z-index:0}.hero-bg:before{content:"";position:absolute;top:-50%;right:-20%;width:80%;height:150%;background:radial-gradient(circle,rgba(13,110,253,.06) 0%,transparent 70%)}.hero-content{position:relative;z-index:1}.hero-badge{display:inline-flex;align-items:center;background:var(--primary-light);color:var(--primary);padding:6px 16px;border-radius:30px;font-size:.875rem;font-weight:600;margin-bottom:20px}.hero-title{font-size:4rem;font-weight:800;color:var(--dark);line-height:1.1;margin-bottom:20px;letter-spacing:-1px}.hero-desc{font-size:1.125rem;color:var(--gray-600);margin-bottom:32px;max-width:500px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:48px}.hero-btn{padding:14px 32px;border-radius:10px;font-weight:600;font-size:1rem;transition:var(--transition)}.hero-btn.btn-primary{background:var(--primary);border-color:var(--primary)}.hero-btn.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 24px #0d6efd4d}.hero-btn.btn-outline-secondary{border-color:var(--gray-400);color:var(--gray-800)}.hero-btn.btn-outline-secondary:hover{background:var(--gray-100);border-color:var(--gray-400)}.hero-stats{display:flex;gap:40px}.hero-stat{text-align:left}.stat-num{display:block;font-size:1.75rem;font-weight:700;color:var(--dark)}.stat-label{font-size:.85rem;color:var(--gray-600)}.hero-visual{display:flex;justify-content:center}.phone-mockup{perspective:1000px}.phone-frame{width:280px;height:560px;background:#1a1a2e;border-radius:40px;padding:12px;box-shadow:var(--shadow-lg),0 0 0 2px #ffffff1a inset;position:relative;transform:rotateY(-5deg) rotateX(2deg);transition:transform .5s ease}.phone-frame:hover{transform:rotateY(0) rotateX(0)}.phone-notch{display:none}.phone-screen{width:100%;height:100%;background:#fff;border-radius:30px;overflow:hidden}.phone-placeholder{width:100%;height:100%;overflow:hidden}.phone-screenshot{width:100%;height:100%;object-fit:cover;object-position:center top;display:block}.notice-bar{background:#fff8e1;border-bottom:1px solid #ffe082;padding:10px 0}.notice-inner{display:flex;align-items:center;gap:12px}.notice-icon{color:#f57c00;font-size:1.1rem;flex-shrink:0}.notice-scroll{overflow:hidden;white-space:nowrap;flex:1;font-size:.9rem;color:#6d4c00}.section-padding{padding:80px 0}.bg-light{background:var(--gray-50)}.section-header{text-align:center;margin-bottom:48px}.section-tag{display:inline-block;background:var(--primary-light);color:var(--primary);padding:4px 14px;border-radius:20px;font-size:.8rem;font-weight:600;margin-bottom:12px}.section-title{font-size:2.25rem;font-weight:700;color:var(--dark);margin-bottom:12px}.section-desc{font-size:1.05rem;color:var(--gray-600);max-width:600px;margin:0 auto}.feature-card{background:#fff;border-radius:16px;padding:36px 28px;height:100%;border:1px solid rgba(0,0,0,.05);box-shadow:0 2px 8px #0000000a;transition:all .3s cubic-bezier(.4,0,.2,1)}.feature-card:hover{transform:translateY(-6px);box-shadow:0 12px 28px #0000001a;border-color:#0d6efd26}.feature-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;margin-bottom:20px}.icon-blue{background:linear-gradient(135deg,#0d6efd,#4dabf7)}.icon-green{background:linear-gradient(135deg,#198754,#51cf66)}.icon-purple{background:linear-gradient(135deg,#6f42c1,#b197fc)}.feature-title{font-size:1.25rem;font-weight:700;margin-bottom:10px;color:var(--dark);word-break:break-word;line-height:1.4}.feature-desc{color:var(--gray-600);font-size:.95rem;margin-bottom:16px}.feature-list{list-style:none;padding:0;margin:0}.feature-list li{display:flex;align-items:center;gap:8px;padding:4px 0;font-size:.9rem;color:var(--gray-800)}.feature-list li i{color:var(--green);font-size:.85rem}.platform-card{background:#fff;border-radius:16px;padding:32px 20px;text-align:center;border:1px solid rgba(0,0,0,.05);box-shadow:0 2px 8px #0000000a;transition:all .3s cubic-bezier(.4,0,.2,1)}.platform-card:hover{transform:translateY(-6px);box-shadow:0 12px 28px #0000001a;border-color:#0d6efd33}.platform-icon{font-size:2.5rem;color:var(--primary);margin-bottom:16px;transition:all .3s ease}.platform-card:hover .platform-icon{transform:scale(1.1);color:var(--primary-dark)}.platform-card h4{font-size:1.1rem;font-weight:700;margin-bottom:4px;color:var(--dark);word-break:break-word;line-height:1.4}.platform-card p{font-size:.85rem;color:var(--gray-600);margin:0;word-break:break-word;line-height:1.5}.resource-tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}.resource-tab{background:#fff;border:1px solid var(--gray-200);padding:8px 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var(--primary);padding-left:21px}.community-avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;background:var(--gray-100);flex-shrink:0}.community-body{flex:1;min-width:0}.community-title{font-size:1rem;font-weight:600;color:var(--dark);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;word-break:break-word;line-height:1.4}.community-summary{font-size:.85rem;color:var(--gray-600);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.community-stats{display:flex;gap:16px;flex-shrink:0;font-size:.8rem;color:var(--gray-600)}.community-stats span{display:flex;align-items:center;gap:4px}.version-list{display:flex;flex-direction:column;gap:10px}.version-item{background:#fff;border-radius:16px;padding:16px 24px;border:1px solid rgba(0,0,0,.05);box-shadow:0 2px 8px #0000000a;display:flex;align-items:center;gap:16px;transition:all .3s 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100%);color:#fff}.download-title{font-size:2.5rem;font-weight:700;margin-bottom:16px}.download-desc{font-size:1.1rem;color:#ffffffb3;margin-bottom:32px;max-width:500px;margin-left:auto;margin-right:auto}.download-btn{padding:16px 40px;border-radius:12px;font-weight:700;font-size:1.1rem;background:#fff;color:var(--dark);transition:var(--transition)}.download-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #fff3}.download-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}.download-btn.btn-outline-light{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6)}.download-btn.btn-outline-light:hover{background:#ffffff26;border-color:#fff;color:#fff}.download-note{margin-top:20px;font-size:.85rem;color:#ffffff80}.site-footer{background:#0f0f1a;color:#ffffffb3;padding:60px 0 30px}.footer-brand{display:flex;align-items:center;gap:8px;margin-bottom:12px}.footer-brand .brand-icon{width:36px;height:36px;border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center}.footer-brand .brand-text{color:#fff;font-weight:700;font-size:1.2rem}.footer-about{font-size:.9rem;line-height:1.7}.footer-heading{color:#fff;font-size:.95rem;font-weight:600;margin-bottom:16px}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:8px}.footer-links a{font-size:.9rem;color:#fff9;transition:var(--transition)}.footer-links a:hover{color:var(--primary)}.footer-license{margin-top:16px;font-size:.85rem;color:#fff6}.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:.85rem;color:#fff6}.footer-disclaimer{font-size:.8rem;margin-top:4px;color:#ffffff4d}.back-to-top{position:fixed;bottom:30px;right:30px;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;border:none;font-size:1.2rem;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(10px);transition:var(--transition);z-index:999;cursor:pointer;box-shadow:0 4px 12px #0d6efd4d}.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:var(--primary-dark);transform:translateY(-2px)}@media(max-width:991px){.hero-title{font-size:2.8rem}.hero-visual{margin-top:40px}.phone-frame{width:220px;height:440px;border-radius:32px}.phone-screen{border-radius:24px}.section-title{font-size:1.8rem}.download-title{font-size:2rem}}@media(max-width:767px){.section-padding{padding:50px 0}.hero-title{font-size:2.2rem}.hero-desc{font-size:1rem}.hero-stats{gap:24px}.stat-num{font-size:1.4rem}.hero-actions{flex-direction:column}.hero-btn{text-align:center}.community-item{flex-direction:column;align-items:flex-start}.community-stats{margin-top:8px}.version-item{flex-direction:column;align-items:flex-start}.phone-frame{width:200px;height:400px}}