:root{--primary: #FF6B6B;--primary-dark: #E55555;--secondary: #4ECDC4;--accent: #FFE66D;--bg-cream: #FFF8E7;--bg-soft: #FFF5F5;--bg-blue: #E8F4F8;--text-dark: #2D3436;--text-muted: #636E72;--gradient-hero: linear-gradient(135deg, #FFF8E7 0%, #FFE6E6 100%);--gradient-card: linear-gradient(180deg, #FFFFFF 0%, #FFF8F0 100%);--gradient-philosophy: linear-gradient(135deg, #FFFFFF 0%, #FFF8E7 100%);--shadow-soft: 0 4px 20px rgba(255, 107, 107, .15);--shadow-card: 0 8px 30px rgba(0, 0, 0, .08);--font-chinese: "Noto Sans SC", sans-serif;--font-english: "Quicksand", sans-serif;--section-padding: clamp(60px, 10vw, 100px)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-english),var(--font-chinese);background:var(--bg-cream);color:var(--text-dark);line-height:1.6;overflow-x:hidden}.custom-select{position:relative;width:140px;font-family:var(--font-english)}.select-trigger{display:flex;align-items:center;justify-content:space-between;width:100%;padding:8px 16px;background:#ffffffe6;border:2px solid rgba(255,255,255,.8);border-radius:20px;cursor:pointer;font-size:.9rem;color:var(--text-dark);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-soft);transition:all .2s ease}.select-trigger:hover,.custom-select.open .select-trigger{border-color:var(--primary);background:#fff}.select-trigger i{font-size:1.1rem;color:var(--primary)}.select-options{position:absolute;top:calc(100% + 8px);right:0;width:180px;background:#fff;border-radius:16px;box-shadow:var(--shadow-card);overflow:hidden;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .2s ease;border:1px solid rgba(0,0,0,.05);z-index:1001}.custom-select.open .select-options{opacity:1;visibility:visible;transform:translateY(0)}.select-option{display:flex;align-items:center;padding:10px 16px;cursor:pointer;transition:background .2s;font-size:.9rem;color:var(--text-dark)}.select-option:hover{background:var(--bg-soft);color:var(--primary)}.select-option.selected{background:var(--bg-blue);font-weight:600;color:var(--primary)}.navbar{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:1rem 1.5rem;transition:all .3s ease;background:transparent}.navbar.scrolled{background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 4px 20px #0000000d;padding:.8rem 1.5rem}.navbar-container{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.nav-logo{display:flex;align-items:center;gap:.8rem;text-decoration:none;color:var(--text-dark);font-weight:700;font-size:1.3rem;font-family:var(--font-english)}.nav-logo img{height:40px;width:auto;border-radius:8px}.nav-links{display:flex;align-items:center;gap:2rem}@media (max-width: 768px){.nav-links{display:none}}.nav-link{text-decoration:none;color:var(--text-dark);font-weight:600;font-size:1rem;transition:color .2s ease;position:relative}.nav-link:hover{color:var(--primary)}.nav-link:not(.btn-nav):after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--primary);transition:width .3s ease;border-radius:2px}.nav-link:hover:after{width:100%}.btn-nav{background:var(--primary);color:#fff!important;padding:.6rem 1.5rem;border-radius:50px;box-shadow:0 4px 15px #ff6b6b4d;transition:transform .2s ease,box-shadow .2s ease!important}.btn-nav:hover{transform:translateY(-2px);box-shadow:0 6px 20px #ff6b6b66}.lang-selector-nav{margin-left:1.5rem;display:none}@media (min-width: 769px){.lang-selector-nav{display:block}}.lang-selector-nav .custom-select{width:auto;min-width:100px}.lang-selector-nav .select-trigger{padding:6px 12px;background:#ffffff80;border:1px solid rgba(0,0,0,.05);font-size:.85rem;gap:8px}.navbar.scrolled .select-trigger{background:#00000008}.mobile-menu-toggle{display:none;background:none;border:none;font-size:2rem;color:var(--text-dark);cursor:pointer;padding:.5rem}@media (max-width: 768px){.mobile-menu-toggle{display:block}}.mobile-menu-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;z-index:1100;opacity:0;visibility:hidden;transition:all .3s ease;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.mobile-menu-overlay.active{opacity:1;visibility:visible}.mobile-menu{position:absolute;top:0;right:-300px;width:300px;height:100%;background:#fff;padding:2rem;display:flex;flex-direction:column;gap:1.5rem;transition:right .3s cubic-bezier(.16,1,.3,1);box-shadow:-5px 0 30px #0000001a}.mobile-menu-overlay.active .mobile-menu{right:0}.close-menu{align-self:flex-end;background:none;border:none;font-size:1.8rem;color:var(--text-muted);cursor:pointer;margin-bottom:1rem}.mobile-nav-link{font-size:1.2rem;color:var(--text-dark);text-decoration:none;font-weight:600;padding-bottom:1rem;border-bottom:1px solid var(--bg-soft)}.mobile-nav-btn{background:var(--primary);color:#fff;text-align:center;padding:1rem;border-radius:12px;text-decoration:none;font-weight:700;margin-top:1rem}.wave-bottom{position:absolute;bottom:-1px;left:0;width:100%;overflow:hidden;line-height:0;transform:rotate(180deg)}.wave-bottom svg{position:relative;display:block;width:calc(180% + 1.3px);height:60px}.wave-bottom .shape-fill{fill:#fff}.wave-top-gallery{position:absolute;top:-1px;left:0;width:100%;overflow:hidden;line-height:0;transform:rotate(180deg)}.wave-top-gallery svg{position:relative;display:block;width:calc(100% + 1.3px);height:50px}.wave-top-gallery .shape-fill{fill:#fff5f5}.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:60px 20px 100px;overflow:hidden}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--gradient-hero);z-index:-1}.hero-bg:before{content:"";position:absolute;bottom:0;left:0;right:0;height:200px;background:linear-gradient(to top,var(--bg-cream),transparent)}.hero-content{max-width:700px;animation:fadeInUp 1s ease-out}.logo-container{margin-bottom:24px}.logo{width:120px;height:120px;border-radius:28px;box-shadow:var(--shadow-card);animation:float 3s ease-in-out infinite}.hero h1{font-size:clamp(2.5rem,8vw,3.5rem);font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:16px}.tagline{font-size:clamp(1.25rem,4vw,1.75rem);color:var(--text-dark);font-weight:600;margin-bottom:16px}.subtitle{font-size:1.05rem;color:var(--text-muted);margin-bottom:40px;line-height:1.7;max-width:600px;margin-left:auto;margin-right:auto}.download-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:16px 32px;border-radius:50px;font-size:1.1rem;font-weight:600;text-decoration:none;transition:all .3s ease;font-family:inherit}.btn-icon{font-size:1.2rem}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 25px #ff6b6b66}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-3px);box-shadow:0 12px 35px #ff6b6b80}.btn-secondary{background:#fff;color:var(--primary);border:2px solid var(--primary)}.btn-secondary:hover{background:var(--primary);color:#fff;transform:translateY(-3px)}.floating-star,.floating-cloud{position:absolute;font-size:2rem;animation:float 4s ease-in-out infinite;opacity:.7}.star-1{top:15%;left:10%;animation-delay:0s}.star-2{top:25%;right:15%;animation-delay:1s}.cloud-1{bottom:20%;left:5%;animation-delay:2s;font-size:3rem}.philosophy{padding:var(--section-padding) 20px;background:var(--gradient-philosophy);text-align:center;position:relative}.philosophy-content{max-width:800px;margin:0 auto}.philosophy h2{font-size:clamp(1.5rem,5vw,2.25rem);margin-bottom:20px;color:var(--text-dark)}.philosophy p{font-size:1.1rem;color:var(--text-muted);line-height:1.8}.scenario-card{background:var(--bg-cream);padding:24px 16px;border-radius:20px;transition:transform .3s ease}.scenarios{padding:var(--section-padding) 20px;background:#fff;text-align:center}.scenarios h2{font-size:clamp(1.5rem,5vw,2rem);margin-bottom:40px}.scenarios-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px;max-width:900px;margin:0 auto}.scenario-card{background:var(--bg-cream);padding:24px 16px;border-radius:20px;transition:transform .3s ease;display:flex;flex-direction:column;align-items:center}.scenario-card:hover{transform:translateY(-5px)}.scenario-icon{font-size:2.5rem;color:var(--primary);margin-bottom:12px}.scenario-card h4{font-size:1rem;margin-bottom:6px;color:var(--text-dark)}.scenario-card p{font-size:.85rem;color:var(--text-muted)}.features{padding:var(--section-padding) 20px;background:var(--bg-soft);text-align:center}.features h2{font-size:clamp(1.5rem,5vw,2rem);margin-bottom:50px;color:var(--text-dark)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:30px;max-width:1100px;margin:0 auto}.feature-card{background:var(--gradient-card);padding:40px 30px;border-radius:24px;box-shadow:var(--shadow-soft);transition:transform .3s ease,box-shadow .3s ease;position:relative}.feature-card.featured{border:3px solid var(--secondary);background:linear-gradient(180deg,#e8f8f7,#fff)}.feature-card.print-feature{grid-column:span 1;background:#fff9e6;border-color:#ffd93d}@media (min-width: 768px){.feature-card.print-feature{grid-column:span 2}}.feature-badge{position:absolute;top:-12px;right:20px;background:var(--secondary);color:#fff;padding:4px 14px;border-radius:20px;font-size:.8rem;font-weight:600}.badge-gray{background:var(--text-muted);opacity:.8}.coming-soon{filter:grayscale(100%);opacity:.8}.coming-soon:hover{filter:grayscale(0%);opacity:1}.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-card)}.feature-icon{font-size:3rem;margin-bottom:20px;color:var(--primary)}.feature-card h3{font-size:1.2rem;margin-bottom:12px;color:var(--text-dark)}.feature-card p{color:var(--text-muted);font-size:.95rem;line-height:1.6}.gallery-section{position:relative;padding:var(--section-padding) 20px;background:#fff;text-align:center;margin-top:-50px;padding-top:100px}.gallery-content{max-width:1000px;margin:0 auto}.gallery-section h2{font-size:clamp(1.5rem,5vw,2.2rem);margin-bottom:12px;color:var(--text-dark)}.gallery-subtitle{color:var(--text-muted);margin-bottom:40px;font-size:1.1rem}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}.gallery-item{background:#fff;padding:12px;border-radius:12px;box-shadow:var(--shadow-card);transition:transform .3s ease}.gallery-item:hover{transform:rotate(2deg) scale(1.02);z-index:2}.gallery-item:nth-child(2n):hover{transform:rotate(-2deg) scale(1.02)}.photo-placeholder{background:#f0f0f0;border-radius:8px;aspect-ratio:4/3;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#aaa;margin-bottom:12px;border:2px dashed #DDD}.photo-placeholder i{font-size:2rem;margin-bottom:8px}.gallery-item .caption{font-family:"Kalam",cursive,var(--font-english);color:var(--text-muted);font-size:.95rem}.origin{padding:var(--section-padding) 20px;background:var(--bg-blue);text-align:center}.origin-content{max-width:700px;margin:0 auto}.origin-icon{font-size:3rem;margin-bottom:20px;color:var(--accent)}.origin h2{font-size:clamp(1.5rem,5vw,2rem);margin-bottom:20px;color:var(--text-dark)}.origin p{font-size:1.1rem;color:var(--text-muted);line-height:1.8;font-style:italic}.maker-signature{margin-top:30px}.signature-text{font-family:"Kalam",cursive,var(--font-english);font-size:1.2rem;color:var(--primary);font-weight:600}.download{padding:var(--section-padding) 20px;background:var(--bg-cream);text-align:center}.download h2{font-size:clamp(1.5rem,5vw,2rem);margin-bottom:16px}.download-intro{color:var(--text-muted);margin-bottom:50px}.platform-cards{display:flex;gap:30px;justify-content:center;flex-wrap:wrap;max-width:700px;margin:0 auto}.platform-card{background:#fff;padding:40px;border-radius:24px;box-shadow:var(--shadow-card);flex:1;min-width:280px;max-width:320px;transition:transform .3s ease}.platform-card.featured{border:3px solid var(--secondary);position:relative}.platform-card.featured:before{content:"✓";position:absolute;top:-12px;right:20px;background:var(--secondary);color:#fff;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700}.platform-card:hover{transform:translateY(-5px)}.platform-icon{font-size:3rem;margin-bottom:16px;color:var(--text-dark)}.platform-card h3{font-size:1.5rem;margin-bottom:8px}.platform-card>p{color:var(--text-muted);margin-bottom:24px}.platform-card:has(.btn-ios){opacity:.85}.btn-ios{background:#333;color:#fff;width:100%;justify-content:center;cursor:not-allowed}.btn-ios:hover{transform:none}.coming-soon-text{color:var(--primary);font-weight:600}.btn-android{background:var(--secondary);color:#fff;width:100%;justify-content:center;box-shadow:0 8px 25px #4ecdc466}.btn-android:hover{background:#3dbdb5}.version-info{margin-top:16px;font-size:.85rem;color:var(--text-muted)}.footer{background:#fff;padding:40px 20px;text-align:center;border-top:1px solid rgba(0,0,0,.05)}.footer-links{margin-bottom:16px}.footer-links a{color:var(--text-muted);text-decoration:none;transition:color .2s}.footer-links a:hover{color:var(--primary)}.footer-links .divider{margin:0 12px;color:#ddd}.copyright{font-size:.85rem;color:var(--text-muted)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}@media (max-width: 600px){.download-buttons{flex-direction:column;align-items:center}.btn{width:100%;max-width:280px;justify-content:center}.floating-star,.floating-cloud{display:none}.scenarios-grid{grid-template-columns:repeat(2,1fr)}.lang-selector-floating{top:10px;right:10px}}