:root{--purple-primary:#5F4B8B;--purple-light:#7B61A8;--purple-dark:#4A3A6B;--purple-darker:#362e4c;--white:#fafafa;--off-white:#f5f5f5;--dark:#1a1a1a;--gray:#666;--light-gray:#e0e0e0;--hero-desktop-a:url(/assets/images/bg_desktop_a.webp);--hero-desktop-b:url(/assets/images/bg_desktop_b.webp);--hero-mobile-a:url(/assets/images/bg_mobile_a.webp);--hero-mobile-b:url(/assets/images/bg_mobile_b.webp);--topbar-bg:rgba(18, 12, 30, 0.60);--topbar-bg-hover:rgba(18, 12, 30, 0.72);--topbar-border:rgba(255, 255, 255, 0.18);--topbar-border-hover:rgba(255, 255, 255, 0.26);--topbar-text:rgba(255, 255, 255, 0.95)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;overflow-x:hidden}body{font-family:"Cabin",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;background-color:var(--purple-primary);color:var(--white);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.topbar{position:fixed;top:24px;right:24px;z-index:2000}.lang-dropdown{position:relative}.lang-dropdown-btn{display:inline-flex;align-items:center;gap:8px;background:var(--topbar-bg);border:1px solid var(--topbar-border);color:var(--topbar-text);padding:12px 16px;border-radius:50px;font-family:inherit;font-size:.95rem;font-weight:600;cursor:pointer;backdrop-filter:blur(22px) saturate(140%);-webkit-backdrop-filter:blur(22px) saturate(140%);transition:background 0.25s ease,border-color 0.25s ease,transform 0.25s ease,box-shadow 0.25s ease;box-shadow:0 10px 30px rgb(0 0 0 / .28)}.lang-dropdown-btn:hover{background:var(--topbar-bg-hover);border-color:var(--topbar-border-hover);transform:translateY(-2px);box-shadow:0 14px 36px rgb(0 0 0 / .34)}.lang-dropdown-btn:active{transform:translateY(-1px)}.lang-dropdown-btn .globe-icon{width:18px;height:18px;color:currentColor}.lang-dropdown-btn .chevron-icon{width:16px;height:16px;color:currentColor;transition:transform 0.3s ease}.lang-dropdown-btn[aria-expanded="true"] .chevron-icon{transform:rotate(180deg)}.lang-dropdown-menu{position:absolute;top:calc(100% + 12px);right:0;min-width:200px;background:rgb(30 20 50 / .98);border:1px solid rgb(255 255 255 / .15);border-radius:16px;padding:8px;list-style:none;opacity:0;visibility:hidden;transform:translateY(-12px);transition:all 0.3s ease;backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);box-shadow:0 12px 48px rgb(0 0 0 / .4);z-index:100}.lang-dropdown-menu.open{opacity:1;visibility:visible;transform:translateY(0)}.lang-dropdown-menu li{margin:0}.lang-dropdown-menu a{display:block;padding:12px 16px;color:rgb(255 255 255 / .85);text-decoration:none;border-radius:10px;font-size:.95rem;font-weight:500;transition:all 0.2s ease}.lang-dropdown-menu a:hover{background:rgb(255 255 255 / .12);color:#fff;transform:translateX(4px)}.lang-dropdown-menu a.active{background:rgb(255 255 255 / .18);color:#fff;font-weight:700}.feature-row{background:var(--white);color:var(--dark);position:relative}.feature-row::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:80%;max-width:1200px;height:1px;background:linear-gradient(90deg,transparent,rgb(95 75 139 / .3),transparent)}.feature-row:last-of-type::after{display:none}.feature-row-content{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;max-width:1200px;width:100%;margin:0 auto}.feature-row-reverse .feature-row-content{direction:rtl}.feature-row-reverse .feature-row-text{direction:ltr}.feature-row-image{display:flex;align-items:center;justify-content:center}.feature-row-image img{width:100%;max-width:400px;height:auto;opacity:0;animation:fadeInScale 1s ease-out 0.3s forwards}@keyframes fadeInScale{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.feature-row-text{text-align:left}.feature-row .feature-heading{font-size:clamp(2rem, 4vw, 3.5rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin-bottom:20px;color:var(--dark)}.feature-row .feature-description{font-size:clamp(1.1rem, 2vw, 1.4rem);font-weight:500;line-height:1.6;color:var(--gray);opacity:.9}@media (max-width:968px){.feature-row-content{grid-template-columns:1fr;gap:40px;text-align:center}.feature-row-reverse .feature-row-content{direction:ltr}.feature-row-text{text-align:center}.feature-row-image img{max-width:300px}}@media (max-width:768px){.feature-row{padding:60px 24px}.feature-row::after{width:90%}}.subfeatures{margin-top:32px;display:flex;flex-direction:column;gap:20px}.subfeature-item{display:flex;gap:16px;align-items:flex-start}.subfeature-icon{flex-shrink:0;width:40px;height:40px;background:linear-gradient(135deg,var(--purple-primary),var(--purple-light));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff}.subfeature-icon svg{width:22px;height:22px}.subfeature-content{flex:1;text-align:left}.subfeature-title{font-size:1.1rem;font-weight:700;color:var(--dark);margin-bottom:4px}.subfeature-desc{font-size:.95rem;font-weight:400;color:var(--gray);line-height:1.5;opacity:.85}@media (max-width:968px){.subfeatures{margin-top:28px;max-width:500px;margin-left:auto;margin-right:auto}.subfeature-item{text-align:left}}.scroll-indicator{position:fixed;bottom:40px;left:50%;transform:translateX(-50%);z-index:100;display:flex;flex-direction:column;align-items:center;gap:8px;opacity:1;transition:opacity 0.4s ease;animation:float 3s ease-in-out infinite}.scroll-indicator.hidden{opacity:0;pointer-events:none}@keyframes float{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-10px)}}.scroll-line{width:1px;height:40px;background:linear-gradient(to bottom,transparent,rgb(255 255 255 / .4),transparent)}.scroll-text{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:rgb(255 255 255 / .6)}.scroll-arrow{width:48px;height:48px;color:rgb(255 255 255 / .6);animation:bounce 2s ease-in-out infinite}@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}.page-scroll{width:100%}.section-full{min-height:60vh;display:flex;align-items:center;justify-content:center;padding:80px 32px;position:relative;opacity:1;transform:translateY(0)}.section-full:first-child{min-height:100vh;overflow:hidden;isolation:isolate;background-image:var(--hero-desktop-a),var(--hero-desktop-b),linear-gradient(135deg,var(--purple-primary) 0%,var(--purple-dark) 100%);background-repeat:no-repeat,no-repeat,no-repeat;background-position:left top,right bottom,center;background-size:clamp(200px, 19vw, 420px) auto,clamp(200px, 19vw, 420px) auto,cover;background-origin:border-box;background-clip:border-box;background-color:var(--purple-primary)}.section-content{max-width:900px;width:100%;text-align:center;position:relative;z-index:1}.hero-appstore{margin-top:2.5rem;display:flex;flex-direction:column;align-items:center;gap:.75rem}.hero-appstore-fadein{opacity:0;animation:fadeInUp 1s ease-out 0.8s forwards}@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.appstore-badge{height:50px;width:auto;transition:transform 0.2s ease,opacity 0.2s ease}.appstore-badge:hover{transform:scale(1.05);opacity:.9}.appstore-availability{font-size:.875rem;color:rgb(255 255 255 / .7);margin:0;font-weight:400}@media (max-width:768px){.hero-appstore{margin-top:2rem}.appstore-badge{height:45px}.appstore-availability{font-size:.8125rem}}.section-full[data-theme="purple"]{background:linear-gradient(135deg,var(--purple-primary) 0%,var(--purple-dark) 100%);color:var(--white)}.section-full[data-theme="light"]{background:var(--white);color:var(--dark)}.section-full[data-theme="dark"]{background:var(--dark);color:var(--white)}.section-full[data-theme="gradient"]{background:linear-gradient(135deg,var(--purple-dark) 0%,var(--purple-primary) 50%,var(--purple-light) 100%);color:var(--white)}.hero-section{background:linear-gradient(135deg,var(--purple-primary) 0%,var(--purple-dark) 100%);opacity:1;transform:translateY(0)}.hero-title{font-size:clamp(3.5rem, 8vw, 6rem);font-weight:800;line-height:1.05;letter-spacing:-.03em;margin-bottom:24px;color:var(--purple-darker);animation:fadeInUp 0.8s ease}.hero-title .fueren-logo{display:inline-block;vertical-align:baseline}.hero-title .fueren-logo img{height:.74em;width:auto;vertical-align:baseline;pointer-events:none;user-select:none}.hero-heading{font-size:clamp(2rem, 4vw, 3.5rem);font-weight:800;line-height:1.15;margin-bottom:24px;color:var(--white);animation:fadeInUp 0.8s ease 0.2s backwards}.hero-subtitle{font-size:clamp(1.2rem, 2.5vw, 1.8rem);font-weight:500;line-height:1.5;margin-bottom:16px;color:rgb(255 255 255 / .9);animation:fadeInUp 0.8s ease 0.4s backwards}@media (max-width:768px){.hero-subtitle{display:none}}.hero-fun-fact{font-size:.8rem;font-weight:400;opacity:.7;line-height:1.5;margin-top:32px;color:rgb(255 255 255 / .75);animation:fadeInUp 0.8s ease 0.6s backwards}@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.feature-section{padding:120px 32px}.feature-icon-large{font-size:clamp(5rem, 12vw, 9rem);line-height:1;margin-bottom:40px;animation:scaleIn 0.6s ease}.feature-icon-large img{max-width:30vh}@keyframes scaleIn{from{transform:scale(.5);opacity:0}to{transform:scale(1);opacity:1}}.feature-heading{font-size:clamp(2.5rem, 5vw, 4.5rem);font-weight:800;line-height:1.1;letter-spacing:-.02em;margin-bottom:24px}.feature-description{font-size:clamp(1.2rem, 2.5vw, 1.8rem);font-weight:500;line-height:1.6;max-width:700px;margin:0 auto;opacity:.9}.section-full[data-theme="light"] .feature-heading{color:var(--dark)}.section-full[data-theme="light"] .feature-description{color:var(--gray)}.stats-section{padding:120px 32px}.stats-grid-full{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:64px;max-width:1000px;margin:0 auto}.stat-item-full{text-align:center}.stat-number-large{font-size:clamp(4rem, 7vw, 7rem);font-weight:900;line-height:1;margin-bottom:16px;background:linear-gradient(135deg,#fff 0%,rgb(255 255 255 / .7) 100%);-webkit-background-clip:text;-webkit-text-fill-color:#fff0;background-clip:text}.stat-label-large{font-size:clamp(1.1rem, 2vw, 1.5rem);font-weight:600;opacity:.85;color:rgb(255 255 255 / .9)}.cta-section{padding:140px 32px}.cta-heading-large{font-size:clamp(3rem, 6vw, 5rem);font-weight:900;line-height:1.1;margin-bottom:24px;color:var(--dark)}.cta-subtitle-large{font-size:clamp(1.3rem, 2.5vw, 2rem);color:var(--gray);margin-bottom:48px;line-height:1.5;max-width:600px;margin-left:auto;margin-right:auto}.cta-button-large{display:inline-block;background:linear-gradient(135deg,var(--purple-primary) 0%,var(--purple-light) 100%);color:#fff;font-size:clamp(1.2rem, 2vw, 1.6rem);font-weight:800;padding:24px 64px;border-radius:100px;text-decoration:none;transition:all 0.4s ease;box-shadow:0 8px 32px rgb(95 75 139 / .3);position:relative;overflow:hidden}.cta-button-large::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgb(255 255 255 / .2),transparent);transition:left 0.6s ease}.cta-button-large:hover::before{left:100%}.cta-button-large:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 12px 48px rgb(95 75 139 / .5)}.cta-button-large:active{transform:translateY(-2px) scale(1)}.footer-full{padding:60px 32px;background:var(--dark);text-align:center;color:rgb(255 255 255 / .7)}.footer-content-full{max-width:800px;margin:0 auto}.footer-disclaimer{font-size:1rem;line-height:1.6;margin-bottom:20px;opacity:.8}.footer-links{font-size:1rem;display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.footer-links a{color:rgb(255 255 255 / .85);text-decoration:none;padding:8px 12px;border-radius:8px;transition:all 0.3s ease;font-weight:500}.footer-links a:hover{color:#fff;background:rgb(255 255 255 / .1)}.footer-divider{opacity:.4}@media (max-width:768px){.topbar{top:16px;right:16px}.section-full{padding:80px 24px;min-height:60svh}.section-full:first-child{min-height:100svh;background-image:var(--hero-mobile-a),var(--hero-mobile-b),linear-gradient(135deg,var(--purple-primary) 0%,var(--purple-dark) 100%);background-repeat:no-repeat,no-repeat,no-repeat;background-position:left top,right bottom,center;background-size:clamp(220px, 78vw, 560px) auto,clamp(220px, 78vw, 560px) auto,cover;padding-bottom:max(80px, env(safe-area-inset-bottom))}.hero-section{padding:100px 24px 60px}.feature-section{padding:100px 24px}.stats-section{padding:100px 24px}.stats-grid-full{grid-template-columns:1fr;gap:48px}.cta-section{padding:100px 24px}.cta-button-large{padding:20px 48px;font-size:1.2rem}.scroll-indicator{bottom:24px}}@media (max-width:480px){.section-full{padding:60px 20px}.section-full:first-child{background-size:clamp(200px, 82vw, 480px) auto,clamp(200px, 82vw, 480px) auto,cover}.hero-section{padding:80px 20px 40px}.feature-section{padding:80px 20px}.feature-icon-large{font-size:4rem;margin-bottom:32px}.stats-section{padding:80px 20px}.cta-section{padding:80px 20px}.footer-full{padding:48px 20px}.cta-button-large{width:100%;max-width:320px}}@media (prefers-reduced-motion:reduce){*{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important;scroll-behavior:auto!important}.scroll-indicator{animation:none}.scroll-arrow{animation:none}}a:focus-visible,button:focus-visible{outline:3px solid rgb(255 255 255 / .8);outline-offset:4px}@media (prefers-contrast:high){.section-full[data-theme="light"]{background:#fff;color:#000}.feature-description{opacity:1}.lang-dropdown-btn{background:rgb(0 0 0 / .75);border-color:rgb(255 255 255 / .5);color:#fff}}@media (prefers-color-scheme:dark){.section-full[data-theme="light"]{background:var(--off-white)}}