:root{--bg-primary: #ffffff;--bg-secondary: #f4f4f5;--bg-surface: #ffffff;--bg-elevated: #ffffff;--border-subtle: rgba(0, 0, 0, .08);--border-medium: rgba(0, 0, 0, .15);--text-primary: #09090b;--text-secondary: #52525b;--text-tertiary: #71717a;--accent-blue: #2563eb;--accent-orange: #ea580c;--font-sans: "Outfit", "Noto Sans TC", system-ui, -apple-system, sans-serif;--radius-sm: 8px;--radius-md: 16px;--radius-lg: 24px;--radius-phone: 8px;--shadow-phone: 0 20px 40px rgba(0, 0, 0, .15), 0 0 0 1px rgba(0, 0, 0, .05);--glow-blue: 0 0 80px 24px rgba(37, 99, 235, .08);--container-max: 1140px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;justify-content:space-between;align-items:center;padding:18px 32px;height:64px;transition:background-color .4s ease,border-color .4s ease;border-bottom:1px solid transparent}.nav.scrolled{background:#ffffffe0;backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-bottom-color:var(--border-subtle)}.nav-brand{display:flex;align-items:center;gap:10px;font-size:1.125rem;font-weight:600;letter-spacing:-.02em;cursor:pointer;background:#fff9;backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);border:none;border-radius:999px;padding:6px 20px 6px 8px;transition:background .3s}.nav.scrolled .nav-brand{background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none}.nav-icon{width:28px;height:28px;border-radius:50%}.lang-toggle{background:#0000000a;border:1px solid var(--border-subtle);color:var(--text-secondary);font-family:var(--font-sans);font-size:.8125rem;font-weight:500;padding:10px 20px;min-height:44px;border-radius:999px;cursor:pointer;transition:background .2s,color .2s,border-color .2s;display:inline-flex;align-items:center;justify-content:center}.lang-toggle:hover{background:#00000014;color:var(--text-primary);border-color:var(--border-medium)}.hero{position:relative;min-height:100dvh;display:flex;align-items:center;padding:96px 0 100px;overflow:hidden}.hero-bg-glow{position:absolute;top:50%;right:8%;width:500px;height:500px;transform:translateY(-50%);background:var(--glow-blue);pointer-events:none;z-index:0}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.hero-content{max-width:500px;min-height:360px;display:flex;flex-direction:column;justify-content:center}.hero-title{font-size:clamp(2.75rem,5.5vw,4rem);font-weight:700;line-height:1.1;letter-spacing:-.03em;background:linear-gradient(135deg,var(--text-primary) 0%,var(--text-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:16px}.hero-subtitle{font-size:clamp(1.0625rem,1.8vw,1.25rem);color:var(--accent-blue);font-weight:500;margin-bottom:12px}.hero-desc{font-size:1rem;color:var(--text-secondary);line-height:1.7;margin-bottom:32px}.hero-actions{display:flex;flex-direction:column;gap:10px}.cta-btn{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,var(--accent-blue),#3a7bd5);color:#fff;font-family:var(--font-sans);font-size:1rem;font-weight:600;padding:14px 32px;border-radius:999px;border:none;cursor:pointer;transition:transform .2s cubic-bezier(.16,1,.3,1),box-shadow .2s;width:fit-content}.cta-btn:hover{transform:translateY(-2px);box-shadow:0 12px 40px #4a9eff40}.cta-btn:active{transform:translateY(0) scale(.98)}.cta-icon{width:20px;height:20px;flex-shrink:0}.cta-sub{font-size:.8125rem;color:var(--text-tertiary)}.download-stats{margin-top:8px;font-size:.85rem;color:var(--text-tertiary);opacity:0;transition:opacity .5s ease;display:flex;flex-direction:column;gap:4px}.stat-row{display:flex;align-items:center;gap:6px}.hero-visual{display:flex;justify-content:center}.phone-mockup{position:relative;width:240px;flex-shrink:0;pointer-events:none;container-type:inline-size}.phone-mockup:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:140%;height:140%;background:radial-gradient(ellipse,rgba(37,99,235,.05),transparent 65%);pointer-events:none;z-index:0}.phone-screen{position:relative;z-index:1;border-radius:3.5cqw;overflow:hidden;border:2.5cqw solid #18181b;box-shadow:var(--shadow-phone);background:#000;transition:transform .4s cubic-bezier(.16,1,.3,1),box-shadow .4s ease}.phone-screen:after{content:"";position:absolute;top:3.5cqw;left:50%;transform:translate(-50%);width:4.2cqw;height:4.2cqw;background:#18181b;border-radius:50%;box-shadow:inset 0 0 2px #ffffff26;z-index:10}.phone-mockup:hover .phone-screen{transform:translateY(-4px);box-shadow:0 0 0 1px #ffffff1f,0 30px 80px #000000b3,0 0 48px #4a9eff1f}.phone-screen img{width:100%;height:auto;display:block}.phone-mockup--hero{width:300px}.phone-mockup--spotlight{width:280px}.features{padding:100px 0 120px;background:var(--bg-secondary)}.section-title{font-size:clamp(2rem,4vw,2.75rem);font-weight:700;text-align:center;letter-spacing:-.02em;margin-bottom:72px}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.feature-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;transition:border-color .3s,transform .3s;overflow:hidden}.feature-card:hover{border-color:#4a9eff33;transform:translateY(-2px)}.feature-card-phone{display:flex;justify-content:center;margin-bottom:28px}.feature-card .phone-mockup{width:180px}.feature-card h3{font-size:1.125rem;font-weight:600;margin-bottom:8px;letter-spacing:-.01em}.feature-card p{font-size:.9375rem;color:var(--text-secondary);line-height:1.6}.privacy{padding:100px 0;background:var(--bg-primary)}.privacy-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.privacy-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:32px;transition:border-color .3s,transform .3s}.privacy-card:hover{border-color:#4a9eff2e;transform:translateY(-2px)}.privacy-icon{width:36px;height:36px;color:var(--accent-blue);margin-bottom:18px}.privacy-icon svg{width:100%;height:100%}.privacy-card h3{font-size:1.0625rem;font-weight:600;margin-bottom:8px}.privacy-card p{font-size:.9375rem;color:var(--text-secondary);line-height:1.6}.disclaimer{padding:72px 0;background:var(--bg-secondary)}.disclaimer-box{max-width:600px;margin:0 auto;text-align:center;padding:36px;border:1px solid rgba(255,159,10,.18);border-radius:var(--radius-md);background:#ff9f0a08}.disclaimer-icon{width:28px;height:28px;color:var(--accent-orange);margin-bottom:14px}.disclaimer-box h2{font-size:1.125rem;font-weight:600;margin-bottom:10px}.disclaimer-box p{font-size:.9375rem;color:var(--text-secondary);line-height:1.6}.bottom-cta-section{padding:120px 0 100px;background:var(--bg-primary);text-align:center}.bottom-cta-content{max-width:560px;margin:0 auto}.bottom-cta-title{font-size:clamp(1.75rem,3.5vw,2.5rem);font-weight:700;letter-spacing:-.02em;margin-bottom:14px}.bottom-cta-desc{font-size:1.0625rem;color:var(--text-secondary);margin-bottom:36px}.cta-btn--large{padding:16px 36px;font-size:1.0625rem;min-height:52px;margin:0 auto}.footer{padding:48px 0 36px;text-align:center;background:var(--bg-primary);border-top:1px solid var(--border-subtle)}.footer-link{display:inline-flex;align-items:center;gap:8px;color:var(--text-secondary);font-size:.9375rem;transition:color .2s;margin-bottom:14px}.footer-link:hover{color:var(--text-primary)}.footer-gh-icon{width:18px;height:18px}.footer-license{font-size:.8125rem;color:var(--text-tertiary);margin-bottom:4px}.footer-contributor{font-size:.8125rem;color:var(--text-tertiary)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media(max-width:960px){.hero{padding:100px 0 80px}.hero-grid{grid-template-columns:1fr;text-align:center;gap:48px}.hero-content{max-width:100%;min-height:auto}.hero-actions,.download-stats{align-items:center}.hero-visual{order:-1}.phone-mockup--hero{width:240px}.feature-grid{grid-template-columns:1fr;gap:20px}.section-title{margin-bottom:48px}.features{padding:80px 0 100px}.privacy{padding:80px 0}.privacy-grid{grid-template-columns:1fr}.bottom-cta-section{padding:80px 0}}@media(max-width:600px){.nav{padding:14px 20px}.hero{padding-top:88px}.hero-title{font-size:2.25rem}.hero-bg-glow{width:300px;height:300px;right:-20%;top:30%}.phone-mockup--hero{width:200px}.feature-card{padding:24px 20px}.cta-btn{padding:12px 28px;font-size:.9375rem}.privacy-card{padding:24px}.disclaimer-box{padding:28px}.bottom-cta-section{padding:64px 0}}