@charset "UTF-8";
:root {
    --primary: #6C5CE7;
    --primary-dark: #5A4BD1;
    --primary-light: #E8E5FF;
    --secondary: #00CEC9;
    --secondary-light: #E0F7FA;
    --accent: #FD79A8;
    --accent-light: #FFE8EC;
    --dark: #2D3436;
    --text: #636E72;
    --text-light: #B2BEC3;
    --bg: #F8F9FA;
    --white: #FFFFFF;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 36px rgba(108, 92, 231, 0.18);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-tap-highlight-color:transparent;}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--dark);background:var(--white);line-height:1.6;overflow-x:hidden;}
a{-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none;text-decoration:none;color:inherit;}
img{max-width:100%;height:auto;display:block;}
ul{list-style:none;}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px;}
.navbar{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(255,255,255,0.92);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid rgba(108,92,231,0.08);-webkit-transform:translateZ(0);transform:translateZ(0);will-change:transform;transition:box-shadow var(--transition);}
.navbar.scrolled{box-shadow:var(--shadow);}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:68px;}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;color:var(--dark);transition:var(--transition);}
.nav-logo:hover{transform:scale(1.03);}
.nav-logo img{width:38px;height:38px;border-radius:10px;}
.nav-logo span{background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-menu li a{display:block;padding:8px 18px;font-size:15px;font-weight:500;color:var(--text);border-radius:8px;transition:var(--transition);position:relative;}
.nav-menu li a::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%) scaleX(0);width:20px;height:2px;background:var(--primary);border-radius:1px;transition:transform var(--transition);}
.nav-menu li a:hover{color:var(--primary);}
.nav-menu li a:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-download{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white)!important;padding:8px 22px!important;border-radius:24px!important;font-weight:600!important;transition:var(--transition)!important;}
.nav-download:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(108,92,231,0.35);}
.nav-download::after{display:none!important;}
.nav-toggle{display:none;flex-direction:column;justify-content:center;align-items:center;width:44px;height:44px;border:none;background:transparent;cursor:pointer;-webkit-appearance:none;appearance:none;padding:8px;border-radius:8px;position:relative;z-index:1001;transition:background var(--transition);}
.nav-toggle:hover{background:var(--bg);}
.nav-toggle .icon-menu,.nav-toggle .icon-close{width:24px;height:24px;display:block;}
.nav-toggle .icon-menu::before{content:'';display:block;width:24px;height:24px;background:url('../icons/menu.svg') no-repeat center / contain;}
.nav-toggle .icon-close{display:none;}
.nav-toggle .icon-close::before{content:'';display:block;width:24px;height:24px;background:url('../icons/close.svg') no-repeat center / contain;}
.nav-toggle.active .icon-menu{display:none;}
.nav-toggle.active .icon-close{display:block;}
.hero{padding:160px 0 100px;background:radial-gradient(ellipse 80% 60% at 30% 20%,rgba(108,92,231,0.06) 0%,transparent 60%),radial-gradient(ellipse 60% 50% at 70% 60%,rgba(0,206,201,0.05) 0%,transparent 60%),var(--white);overflow:hidden;}
.hero .container{display:flex;align-items:center;gap:60px;}
.hero-content{flex:1;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--primary-light);color:var(--primary);padding:6px 16px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:24px;}
.hero-badge::before{content:'';width:8px;height:8px;background:var(--primary);border-radius:50%;animation:pulse-dot 2s infinite;}
.hero-title{font-size:48px;font-weight:800;line-height:1.2;margin-bottom:20px;background:linear-gradient(135deg,var(--dark) 0%,var(--primary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.hero-subtitle{font-size:18px;color:var(--text);line-height:1.7;margin-bottom:36px;max-width:520px;}
.hero-buttons{display:flex;flex-wrap:wrap;gap:14px;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;font-size:16px;font-weight:600;border-radius:50px;border:none;cursor:pointer;transition:var(--transition);text-decoration:none;}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);box-shadow:0 6px 24px rgba(108,92,231,0.3);}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 32px rgba(108,92,231,0.4);}
.btn-outline{background:var(--white);color:var(--primary);border:2px solid var(--primary-light);}
.btn-outline:hover{background:var(--primary-light);transform:translateY(-3px);border-color:var(--primary);}
.btn-sm{padding:10px 22px;font-size:14px;}
.hero-visual{flex:1;display:flex;justify-content:center;align-items:center;animation:float 6s ease-in-out infinite;}
.hero-visual img{max-width:440px;width:100%;}
.features{padding:100px 0;background:var(--bg);}
.section-header{text-align:center;margin-bottom:60px;}
.section-label{display:inline-block;background:var(--primary-light);color:var(--primary);padding:6px 18px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:16px;}
.section-title{font-size:36px;font-weight:700;color:var(--dark);margin-bottom:14px;}
.section-desc{font-size:16px;color:var(--text);max-width:600px;margin:0 auto;}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.feature-card{background:var(--white);border-radius:var(--radius);padding:36px 28px;transition:var(--transition);border:1px solid transparent;position:relative;overflow:hidden;}
.feature-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--primary),var(--secondary));transform:scaleX(0);transform-origin:left;transition:transform var(--transition);}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(108,92,231,0.1);}
.feature-card:hover::before{transform:scaleX(1);}
.feature-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;}
.feature-icon i::before{content:'';display:block;width:32px;height:32px;}
.feature-icon.chat i::before{background:url('../icons/chat.svg') no-repeat center / contain;}
.feature-icon.brain i::before{background:url('../icons/brain.svg') no-repeat center / contain;}
.feature-icon.heart i::before{background:url('../icons/heart.svg') no-repeat center / contain;}
.feature-icon.create i::before{background:url('../icons/wand.svg') no-repeat center / contain;}
.feature-icon.shield i::before{background:url('../icons/shield.svg') no-repeat center / contain;}
.feature-icon.users i::before{background:url('../icons/users.svg') no-repeat center / contain;}
.feature-card h3{font-size:20px;font-weight:600;margin-bottom:10px;color:var(--dark);}
.feature-card p{font-size:15px;color:var(--text);line-height:1.6;}

.screenshots{padding:100px 0;background:var(--white);}
.screenshots-scroll{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:4px;}
.screenshots-scroll::-webkit-scrollbar{display:none;}
.screenshot-item{flex:0 0 auto;width:280px;height:520px;border-radius:var(--radius);overflow:hidden;scroll-snap-align:start;transition:var(--transition);box-shadow:var(--shadow);cursor:pointer;}
.screenshot-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.screenshot-item img{width:100%;height:100%;object-fit:cover;display:block;}

.ai-creation{padding:100px 0;background:var(--white);}
.ai-creation .container{display:flex;align-items:center;gap:60px;}
.ai-creation-visual{flex:1;}
.ai-creation-visual img{max-width:460px;width:100%;border-radius:20px;}
.ai-creation-content{flex:1;}
.ai-creation-content .section-title{text-align:left;font-size:36px;}
.ai-creation-content .section-desc{text-align:left;margin:0 0 28px 0;font-size:16px;}
.creation-steps{display:flex;flex-direction:column;gap:20px;}
.creation-step{display:flex;align-items:flex-start;gap:16px;padding:18px 20px;background:var(--bg);border-radius:var(--radius-sm);transition:var(--transition);border-left:3px solid transparent;}
.creation-step:hover{border-left-color:var(--primary);background:var(--primary-light);transform:translateX(4px);}
.step-number{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--secondary));color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0;}
.step-info h4{font-size:17px;font-weight:600;color:var(--dark);margin-bottom:4px;}
.step-info p{font-size:14px;color:var(--text);}

.download{padding:100px 0;background:radial-gradient(ellipse 60% 50% at 20% 50%,rgba(108,92,231,0.06) 0%,transparent 60%),radial-gradient(ellipse 50% 40% at 80% 50%,rgba(0,206,201,0.05) 0%,transparent 60%),linear-gradient(180deg,var(--bg) 0%,var(--white) 100%);}
.download-inner{text-align:center;}
.download-header{margin-bottom:50px;}
.download-header .section-title{margin-bottom:12px;}
.download-header .section-desc{max-width:520px;margin:0 auto;}
.download-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;max-width:800px;margin:0 auto;}
.download-card{background:var(--white);border-radius:var(--radius);padding:40px 36px;text-align:left;transition:var(--transition);border:2px solid transparent;display:flex;flex-direction:column;gap:24px;}
.ios-card:hover{border-color:rgba(0,206,201,0.3);box-shadow:0 8px 36px rgba(0,206,201,0.12);transform:translateY(-4px);}
.android-card:hover{border-color:rgba(108,92,231,0.3);box-shadow:0 8px 36px rgba(108,92,231,0.12);transform:translateY(-4px);}
.download-card-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;}
.ios-card .download-card-icon{background:var(--secondary-light);}
.android-card .download-card-icon{background:var(--primary-light);}
.download-card-icon i::before{content:'';display:block;width:30px;height:30px;}
.ic-apple::before{background:url('../icons/apple.svg') no-repeat center / contain;}
.ic-android::before{background:url('../icons/android.svg') no-repeat center / contain;}
.download-card-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.download-badge{background:linear-gradient(135deg,var(--primary),var(--secondary));color:var(--white);padding:3px 12px;border-radius:10px;font-size:12px;font-weight:600;}
.download-version{font-size:13px;color:var(--dark);font-weight:600;background:var(--bg);padding:3px 10px;border-radius:8px;}
.download-platform{font-size:12px;color:var(--text-light);}
.download-card h3{font-size:20px;font-weight:700;color:var(--dark);margin-bottom:6px;}
.download-card p{font-size:14px;color:var(--text);line-height:1.5;}
.btn-dl{width:100%;justify-content:center;margin-top:auto;}

.advantages{padding:100px 0;background:var(--white);}
.advantages-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.advantage-card{text-align:center;padding:40px 28px;transition:var(--transition);border-radius:var(--radius);}
.advantage-card:hover{background:var(--bg);transform:translateY(-4px);}
.advantage-number{font-size:48px;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:8px;}
.advantage-card h4{font-size:18px;font-weight:600;color:var(--dark);margin-bottom:8px;}
.advantage-card p{font-size:14px;color:var(--text);}

.testimonials{padding:0 0 100px;background:var(--white);}
.testimonial-slider{position:relative;max-width:700px;margin:0 auto;overflow:hidden;}
.testimonial-track{display:flex;transition:transform 0.5s cubic-bezier(0.4,0,0.2,1);}
.testimonial-card{min-width:100%;padding:40px 48px;text-align:center;background:var(--bg);border-radius:var(--radius);}
.testimonial-stars i::before{content:'';display:inline-block;width:20px;height:20px;background:url('../icons/star.svg') no-repeat center / contain;margin:0 2px;}
.testimonial-text{font-size:17px;color:var(--dark);line-height:1.7;margin:20px 0;font-style:italic;}
.testimonial-author{font-size:15px;font-weight:600;color:var(--primary);}
.testimonial-role{font-size:13px;color:var(--text-light);}
.testimonial-dots{display:flex;justify-content:center;gap:10px;margin-top:24px;}
.testimonial-dot{width:10px;height:10px;border-radius:50%;background:var(--primary-light);border:none;cursor:pointer;transition:var(--transition);}
.testimonial-dot.active{background:var(--primary);width:28px;border-radius:5px;}

.footer{background:var(--dark);color:var(--white);padding:60px 0 30px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;margin-bottom:14px;}
.footer-logo img{width:32px;height:32px;border-radius:8px;}
.footer-brand p{font-size:14px;color:rgba(255,255,255,0.6);line-height:1.7;}
.footer-col h4{font-size:16px;font-weight:600;margin-bottom:18px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,0.6);transition:var(--transition);}
.footer-col ul li a:hover{color:var(--secondary);padding-left:4px;}
.footer-cols-wrapper{display:contents;}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:24px;display:flex;justify-content:space-between;align-items:center;font-size:13px;color:rgba(255,255,255,0.4);}

.reveal{opacity:0;transform:translateY(40px);transition:opacity 0.7s ease,transform 0.7s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-16px);}}
@keyframes pulse-dot{0%,100%{opacity:1;transform:scale(1);}50%{opacity:0.5;transform:scale(1.3);}}

.back-to-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;background:var(--primary);color:var(--white);border:none;border-radius:50%;cursor:pointer;font-size:20px;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(20px);transition:var(--transition);z-index:999;box-shadow:0 4px 16px rgba(108,92,231,0.3);}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0);}
.back-to-top:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(108,92,231,0.45);}
.back-to-top i::before{content:'';display:block;width:22px;height:22px;background:url('../icons/arrow-up.svg') no-repeat center / contain;filter:brightness(0) invert(1);}

@media (max-width:1024px){
    .hero-title{font-size:38px;}
    .section-title{font-size:30px;}
    .features-grid{grid-template-columns:repeat(2,1fr);}
    .screenshot-item{width:240px;height:440px;}
    .download-cards{grid-template-columns:1fr;max-width:440px;}
    .advantages-grid{grid-template-columns:repeat(3,1fr);}
    .advantage-number{font-size:38px;}
    .ai-creation .container{gap:40px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
    .nav-toggle{display:flex;margin-left:auto;}
    .nav-menu{position:fixed;top:68px;left:0;width:100%;background:rgba(255,255,255,0.98);flex-direction:column;padding:20px 24px 28px;gap:6px;border-bottom:1px solid rgba(108,92,231,0.08);transform:translateY(-120%);opacity:0;transition:transform 0.3s cubic-bezier(0.4,0,0.2,1),opacity 0.25s ease;box-shadow:0 8px 30px rgba(0,0,0,0.12);z-index:999;}
    .nav-menu.active{transform:translateY(0);opacity:1;}
    .nav-menu li{width:100%;}
    .nav-menu li a{padding:12px 18px;font-size:16px;border-radius:10px;}
    .nav-menu li a::after{display:none;}
    .nav-menu li a:hover{background:var(--primary-light);}
    .hero{padding:120px 0 60px;}
    .hero .container{flex-direction:column;text-align:center;gap:40px;}
    .hero-title{font-size:32px;}
    .hero-subtitle{max-width:100%;font-size:16px;}
    .hero-buttons{justify-content:center;}
    .hero-visual{order:-1;}
    .hero-visual img{max-width:280px;}
    .features{padding:60px 0;}
    .section-title{font-size:26px;}
    .features-grid{grid-template-columns:1fr;gap:16px;}
    .ai-creation{padding:60px 0;}
    .ai-creation .container{flex-direction:column;text-align:center;gap:32px;}
    .ai-creation-content .section-title,.ai-creation-content .section-desc{text-align:center;}
    .creation-step{text-align:left;}
    .ai-creation-visual img{max-width:300px;}
    .screenshots{padding:60px 0;}
    .screenshot-item{width:200px;height:380px;}
    .screenshots-scroll{padding:0 16px;}
    .download{padding:60px 0;}
    .download-cards{grid-template-columns:1fr;}
    .download-card{padding:28px 24px;text-align:center;align-items:center;}
    .download-card-meta{justify-content:center;}
    .download-card-icon{margin:0 auto;}
    .advantages{padding:60px 0;}
    .advantages-grid{grid-template-columns:1fr;gap:16px;}
    .testimonial-card{padding:28px 24px;}
    .footer-grid{grid-template-columns:1fr;gap:24px;}
    .footer-brand{grid-column:1 / -1;}
    .footer-cols-wrapper{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
    .footer-bottom{flex-direction:column;gap:8px;text-align:center;}
    .back-to-top{bottom:20px;right:20px;width:42px;height:42px;}
}
@media (max-width:480px){
    .container{padding:0 16px;}
    .hero-title{font-size:28px;}
    .hero-subtitle{font-size:15px;}
    .hero-buttons{flex-direction:column;align-items:center;}
    .btn{width:100%;justify-content:center;}
    .section-title{font-size:24px;}
    .section-desc{font-size:14px;}
    .feature-card{padding:28px 20px;}
    .screenshot-item{width:160px;height:300px;}
    .download-card{padding:24px 20px;}
    .testimonial-text{font-size:15px;}
}