:root{--primary:#07c160;--primary-dark:#06a050;--primary-light:#e6f9ee;--text1:#1a1a1a;--text2:#666;--text3:#999;--bg:#fff;--bg2:#f7f8fa;--bg3:#f0f1f3;--border:#e5e5e5;--border-light:#eee;--radius:12px;--shadow:0 4px 24px #0000000f;--max-w:1120px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}body{color:var(--text1);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%}.btn{cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:10px 24px;font-size:15px;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 16px #07c1604d}.btn-outline{color:var(--primary);border:1.5px solid var(--primary);background:0 0}.btn-outline:hover{background:var(--primary);color:#fff}.btn-ghost{color:var(--text2);background:0 0}.btn-ghost:hover{color:var(--primary)}.btn-lg{border-radius:12px;padding:14px 32px;font-size:16px}.btn-block{width:100%}.navbar{z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#fffc;border-bottom:1px solid #0000;transition:all .3s;position:fixed;top:0;left:0;right:0}.navbar.scrolled{border-bottom-color:var(--border);box-shadow:0 1px 8px #0000000a}.nav-inner{max-width:var(--max-w);justify-content:space-between;align-items:center;height:64px;margin:0 auto;padding:0 24px;display:flex}.nav-brand{color:inherit;align-items:center;gap:10px;text-decoration:none;display:flex}.nav-logo{border-radius:8px;width:36px;height:36px}.nav-name{color:var(--text1);font-size:20px;font-weight:700}.nav-links{gap:32px;display:flex}.nav-links a{color:var(--text2);font-size:15px;transition:color .2s}.nav-links a:hover{color:var(--primary)}.nav-actions{gap:12px;display:flex}.nav-menu-btn{color:var(--text1);cursor:pointer;background:0 0;border:none;font-size:24px;display:none}.mobile-menu{border-bottom:1px solid var(--border);background:#fff;flex-direction:column;padding:16px 24px 24px;display:none}.mobile-menu.open{display:flex}.mobile-menu a{color:var(--text2);border-bottom:1px solid var(--bg2);padding:10px 0;font-size:15px}.mobile-menu a:last-child{border-bottom:none}.hero{max-width:var(--max-w);align-items:center;gap:60px;min-height:100vh;margin:0 auto;padding:120px 24px 80px;display:flex}.hero-content{flex:1}.hero-title{margin-bottom:20px;font-size:48px;font-weight:800;line-height:1.2}.highlight{color:var(--primary)}.hero-sub{color:var(--text2);margin-bottom:36px;font-size:18px;line-height:1.8}.hero-btns{gap:16px;margin-bottom:48px;display:flex}.hero-stats{gap:40px;display:flex}.stat{flex-direction:column;display:flex}.stat-num{color:var(--primary);font-size:28px;font-weight:800}.stat-label{color:var(--text3);margin-top:2px;font-size:13px}.hero-visual{flex:1;max-width:400px}.chat-preview{border:1px solid var(--border);background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 12px 48px #0000001a}.cp-header{background:var(--bg2);border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:14px 16px;display:flex}.cp-header .cp-av{border-radius:8px;width:32px;height:32px}.cp-header span{font-size:14px;font-weight:600}.cp-online{margin-left:auto;color:var(--primary)!important;font-size:12px!important;font-weight:400!important}.cp-body{flex-direction:column;gap:12px;padding:16px;display:flex}.cp-msg{align-items:flex-start;gap:8px;display:flex}.cp-ai{flex-direction:row}.cp-user{flex-direction:row-reverse}.cp-av-sm{border-radius:6px;flex-shrink:0;width:28px;height:28px;overflow:hidden}.cp-av-sm img{object-fit:cover;width:100%;height:100%}.cp-bubble{border-radius:16px;max-width:80%;padding:10px 14px;font-size:14px;line-height:1.6}.cp-ai .cp-bubble{color:var(--text1);background:#f0f0f0;border-radius:16px 16px 16px 4px}.cp-user .cp-bubble{background:var(--primary);color:#fff;border-radius:16px 16px 4px}.section-inner{max-width:var(--max-w);margin:0 auto;padding:100px 24px}.section-header{text-align:center;margin-bottom:56px}.section-header h2{margin-bottom:12px;font-size:36px;font-weight:800}.section-header p{color:var(--text2);font-size:17px}.core{background:var(--bg2)}.core-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.core-card{box-shadow:var(--shadow);background:#fff;border-radius:16px;padding:32px 28px;transition:transform .3s,box-shadow .3s}.core-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px #0000001a}.cc-icon{border-radius:14px;justify-content:center;align-items:center;width:56px;height:56px;margin-bottom:20px;font-size:26px;display:flex}.core-card h3{margin-bottom:10px;font-size:20px;font-weight:700}.core-card p{color:var(--text2);font-size:14px;line-height:1.7}.cc-tags{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.cc-tag{background:var(--bg2);color:var(--text2);border-radius:20px;padding:4px 12px;font-size:12px}.smart-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.smart-card{background:var(--bg2);border-radius:var(--radius);padding:28px 24px;transition:transform .3s,box-shadow 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p{color:var(--text2);font-size:13px;line-height:1.7}.more-grid{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}.more-item{background:var(--bg2);border-radius:var(--radius);align-items:flex-start;gap:16px;padding:24px;transition:transform .3s;display:flex}.more-item:hover{transform:translate(4px)}.more-item>i{color:var(--primary);flex-shrink:0;margin-top:2px;font-size:22px}.more-item h4{margin-bottom:4px;font-size:15px;font-weight:700}.more-item p{color:var(--text2);font-size:13px;line-height:1.6}.cta{color:#fff;background:linear-gradient(135deg,#07c160 0%,#06a050 100%)}.cta-inner{max-width:var(--max-w);text-align:center;margin:0 auto;padding:80px 24px}.cta-inner h2{margin-bottom:12px;font-size:32px;font-weight:800}.cta-inner p{opacity:.9;margin-bottom:32px;font-size:16px}.cta .btn-primary{color:var(--primary);background:#fff;padding:16px 40px;font-size:17px}.cta .btn-primary:hover{background:#f0f0f0;box-shadow:0 4px 16px #00000026}.footer{background:var(--text1);color:#ccc}.footer-inner{max-width:var(--max-w);margin:0 auto;padding:48px 24px 32px}.footer-brand{color:inherit;align-items:center;gap:10px;margin-bottom:20px;text-decoration:none;display:flex}.footer-logo{border-radius:6px;width:28px;height:28px}.footer-brand span{color:#eee;font-size:15px;font-weight:600}.footer-links{gap:24px;margin-bottom:24px;display:flex}.footer-links a{color:#aaa;font-size:14px;transition:color .2s}.footer-links a:hover{color:var(--primary)}.footer-copy{color:#666;font-size:13px}.download{background:var(--bg2)}.download-inner{max-width:var(--max-w);align-items:center;gap:60px;margin:0 auto;padding:100px 24px;display:flex}.download-phone{flex:0 0 280px;justify-content:center;display:flex}.phone-mockup{border:3px solid var(--border);background:#fff;border-radius:32px;flex-direction:column;justify-content:center;align-items:center;width:220px;height:440px;padding:24px 16px;display:flex;position:relative;overflow:hidden;box-shadow:0 16px 48px #0000001a}.phone-mockup:before{content:"";background:var(--border);border-radius:3px;width:60px;height:6px;position:absolute;top:12px;left:50%;transform:translate(-50%)}.phone-mockup img{border-radius:20px;width:80px;height:80px;margin-bottom:16px}.phone-mockup .pm-name{color:var(--text1);margin-bottom:4px;font-size:18px;font-weight:700}.phone-mockup .pm-slogan{color:var(--text3);font-size:12px}.download-info{flex:1}.download-info h2{margin-bottom:12px;font-size:36px;font-weight:800}.download-info .dl-sub{color:var(--text2);margin-bottom:36px;font-size:17px}.dl-buttons{flex-direction:column;gap:16px;max-width:280px;display:flex}.dl-btn{cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:10px;min-height:52px;padding:14px 28px;font-size:16px;font-weight:600;transition:all .2s;display:inline-flex}.dl-btn i{font-size:22px}.dl-btn-android{background:var(--primary);color:#fff}.dl-btn-android:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 16px #07c1604d}.dl-btn-ios{color:var(--primary);border:1.5px solid var(--primary);background:0 0}.dl-btn-ios:hover{background:var(--primary);color:#fff}.dl-btn-ios .coming-soon{opacity:.7;margin-left:4px;font-size:12px}.fade-in{opacity:0;transition:opacity .6s,transform .6s;transform:translateY(24px)}.fade-in.visible{opacity:1;transform:translateY(0)}@media (width<=900px){.hero{text-align:center;flex-direction:column;min-height:auto;padding-top:100px}.hero-btns,.hero-stats{justify-content:center}.hero-visual{width:100%;max-width:360px}.core-grid{grid-template-columns:1fr}.smart-grid,.scene-grid{grid-template-columns:repeat(2,1fr)}.more-grid{grid-template-columns:1fr}.section-header h2{font-size:28px}.hero-title{font-size:36px}.download-inner{text-align:center;flex-direction:column;gap:40px}.download-phone{flex:none}.dl-buttons{margin:0 auto}}@media (width<=640px){body{overflow-x:hidden}.nav-links,.nav-actions{display:none}.nav-menu-btn{justify-content:center;align-items:center;width:44px;height:44px;display:flex}.mobile-menu{z-index:99;position:absolute;top:64px;left:0;right:0;box-shadow:0 4px 16px #00000014}.mobile-menu a{align-items:center;min-height:44px;display:flex}.hero{gap:32px;padding:88px 16px 48px}.hero-title{margin-bottom:14px;font-size:28px}.hero-sub{margin-bottom:24px;font-size:14px;line-height:1.7}.hero-btns{flex-direction:column;gap:10px;margin-bottom:32px}.hero-btns .btn{width:100%;min-height:44px}.hero-stats{flex-wrap:wrap;gap:20px}.stat-num{font-size:20px}.stat-label{font-size:12px}.hero-visual{width:100%;max-width:320px}.chat-preview{border-radius:16px}.cp-bubble{word-break:break-word;overflow-wrap:break-word;max-width:75%;padding:8px 12px;font-size:13px}.cp-av-sm{width:24px;height:24px}.cp-body{gap:10px;padding:12px}.smart-grid,.scene-grid,.more-grid{grid-template-columns:1fr}.section-inner{padding:56px 16px}.section-header{margin-bottom:36px}.section-header h2{font-size:24px}.section-header p{font-size:14px}.core-card{padding:24px 20px}.core-card h3{font-size:17px}.core-card p{font-size:13px}.smart-card,.scene-card{padding:20px 18px}.more-item{gap:12px;padding:18px}.more-item h4{font-size:14px}.more-item p{font-size:12px}.cta-inner{padding:48px 16px}.cta-inner h2{font-size:22px}.cta-inner p{margin-bottom:24px;font-size:14px}.cta .btn-primary{min-height:44px;padding:14px 32px;font-size:15px}.footer-inner{padding:32px 16px 24px}.footer-brand{margin-bottom:16px}.footer-links{flex-direction:column;gap:12px;margin-bottom:16px}.footer-copy{font-size:12px;line-height:1.6}.download-inner{text-align:center;gap:28px;padding:56px 16px}.download-info h2{font-size:24px}.download-info .dl-sub{margin-bottom:24px;font-size:14px}.phone-mockup{border-radius:24px;width:180px;height:360px}.phone-mockup img{border-radius:16px;width:60px;height:60px}.phone-mockup .pm-name{font-size:15px}.dl-buttons{width:100%;max-width:none}.dl-btn{width:100%;min-height:48px}.btn{min-height:44px}}