:root{--apple-blue: #0071e3;--apple-gray: #f5f5f7;--apple-gray-hover: #e8e8ed;--text-primary: #1d1d1f;--text-secondary: #6e6e73;--text-light: #86868b;--bg-primary: #fff;--bg-section: #fff;--border-color: #ddd;--nav-bg: rgba(255, 255, 255, .8);--card-bg: #fff;--xiaomi-note-bg: #fff8e1;--xiaomi-note-border: #ffecb3;--xiaomi-note-text: #614a00;--footer-bg: #f5f5f7}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--apple-blue: #2997ff;--apple-gray: #1d1d1f;--apple-gray-hover: #2c2c2e;--text-primary: #f5f5f7;--text-secondary: #a1a1a6;--text-light: #86868b;--bg-primary: #000;--bg-section: #000;--border-color: #424245;--nav-bg: rgba(29, 29, 31, .8);--card-bg: #1d1d1f;--xiaomi-note-bg: #2d2416;--xiaomi-note-border: #4a3d1f;--xiaomi-note-text: #f5d576;--footer-bg: #1d1d1f}}:root[data-theme=dark]{--apple-blue: #2997ff;--apple-gray: #1d1d1f;--apple-gray-hover: #2c2c2e;--text-primary: #f5f5f7;--text-secondary: #a1a1a6;--text-light: #86868b;--bg-primary: #000;--bg-section: #000;--border-color: #424245;--nav-bg: rgba(29, 29, 31, .8);--card-bg: #1d1d1f;--xiaomi-note-bg: #2d2416;--xiaomi-note-border: #4a3d1f;--xiaomi-note-text: #f5d576;--footer-bg: #1d1d1f}:root[data-theme=light]{--apple-blue: #0071e3;--apple-gray: #f5f5f7;--apple-gray-hover: #e8e8ed;--text-primary: #1d1d1f;--text-secondary: #6e6e73;--text-light: #86868b;--bg-primary: #fff;--bg-section: #fff;--border-color: #ddd;--nav-bg: rgba(255, 255, 255, .8);--card-bg: #fff;--xiaomi-note-bg: #fff8e1;--xiaomi-note-border: #ffecb3;--xiaomi-note-text: #614a00;--footer-bg: #f5f5f7}body,html{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:980px;margin:0 auto;padding:0 22px;box-sizing:border-box}section{padding:60px 0;text-align:center;border-bottom:1px solid var(--border-color)}section:last-of-type{border-bottom:none}h1,h2,h3,h4,p{margin:0}h1{font-size:2.8rem;font-weight:600;letter-spacing:.004em;margin-top:12px}h2{font-size:2.2rem;font-weight:600;margin-bottom:30px}h3{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin-bottom:15px}.global-nav{position:sticky;top:0;z-index:999;background-color:var(--nav-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color)}.nav-content{display:flex;justify-content:space-between;align-items:center;height:52px;font-size:14px}.nav-logo{display:flex;align-items:center;font-weight:500;font-size:16px;color:var(--text-primary);text-decoration:none}.nav-logo img{width:24px;height:24px;margin-right:8px;border-radius:6px}.nav-links{display:flex;align-items:center}.nav-links a{color:var(--text-secondary);text-decoration:none}.nav-links a:hover{color:var(--apple-blue)}.nav-links .lang-active{color:var(--text-primary);font-weight:500}.theme-toggle{margin-left:10px;background:none;border:none;cursor:pointer;font-size:18px;padding:5px 8px;border-radius:6px;transition:background-color .2s ease;display:inline-flex;align-items:center;justify-content:center;vertical-align:middle}.theme-toggle:hover{background-color:var(--border-color)}.theme-toggle:active{transform:scale(.95)}.hero{padding-top:80px;padding-bottom:80px}.hero .app-icon{width:96px;height:96px;border-radius:22px;box-shadow:0 4px 12px #0000001a}.hero .tagline{font-size:1.5rem;color:var(--text-secondary);margin-top:15px;font-weight:400}.hero .quote{font-size:1.2rem;color:var(--text-primary);margin-top:25px;font-weight:500;line-height:1.6}.hero-cta{margin-top:30px;display:flex;justify-content:center;gap:15px;flex-wrap:wrap}.cta-button{display:inline-block;background-color:var(--apple-blue);color:#fff;text-decoration:none;font-size:17px;font-weight:500;padding:12px 24px;border-radius:980px;transition:transform .2s ease,background-color .2s ease}.cta-button:hover{background-color:#0077ed;transform:scale(1.05)}.cta-button.secondary{background-color:var(--apple-gray);color:var(--apple-blue)}.cta-button.secondary:hover{background-color:var(--apple-gray-hover)}.features{background-color:var(--bg-section);text-align:left}.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.feature-card{background-color:var(--card-bg);padding:30px;border-radius:18px;box-shadow:0 4px 12px #0000000d}.feature-card ul{list-style-type:none;padding-left:0;color:var(--text-secondary);line-height:1.8}.feature-card li{position:relative;padding-left:25px;margin-bottom:8px}.feature-card li:before{content:"✓";position:absolute;left:0;color:var(--apple-blue);font-weight:600}.feature-card.cute li:before{content:"✨"}.download-stores{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px;margin-top:40px;max-width:800px;margin-left:auto;margin-right:auto}.store-link{display:flex;align-items:center;justify-content:center;padding:15px 20px;background-color:var(--apple-gray);border-radius:12px;text-decoration:none;font-size:1.1rem;font-weight:500;color:var(--text-primary);transition:all .2s ease}.store-link:hover{background-color:var(--apple-gray-hover);transform:translateY(-3px);box-shadow:0 4px 8px #0000000d}.store-link strong{color:var(--apple-blue);display:block;font-size:.9em;margin-top:4px}.xiaomi-note{margin-top:30px;padding:15px;background-color:var(--xiaomi-note-bg);border:1px solid var(--xiaomi-note-border);border-radius:8px;color:var(--xiaomi-note-text);font-size:14px;line-height:1.6;max-width:800px;margin-left:auto;margin-right:auto;text-align:left}footer{background-color:var(--footer-bg);padding:40px 0;font-size:12px;color:var(--text-light)}.footer-container{max-width:980px;margin:0 auto;padding:0 22px;text-align:center}.footer-links{margin-bottom:15px}.footer-links a{color:var(--text-secondary);text-decoration:none;margin:0 10px}.footer-links a:hover{color:var(--apple-blue)}.legal-links{margin-top:15px;line-height:1.6}.legal-links a{color:var(--text-light);text-decoration:none}.legal-links a:hover{text-decoration:underline}.legal-links img{width:14px;height:14px;vertical-align:middle;margin:0 3px}@media(max-width:768px){h1{font-size:2.2rem}h2{font-size:1.8rem}.hero .tagline{font-size:1.2rem}.feature-grid{grid-template-columns:1fr}}#open-in-browser-tip{display:none;position:fixed;top:10px;right:10px;background-color:#000000b3;color:#fff;padding:14px 15px;border-radius:10px;z-index:1000;font-size:14px;line-height:1.55}#open-in-browser-tip:before{content:"";display:block;width:0;height:0;border-left:10px solid transparent;border-right:10px solid transparent;border-bottom:10px solid rgba(0,0,0,.7);position:absolute;bottom:100%;right:10px}.legal{text-align:left}.legal .container{max-width:780px}.legal h1{font-size:2.2rem;margin-top:0;margin-bottom:8px}.legal .effective-date{color:var(--text-secondary);margin-bottom:30px}.legal h2{font-size:1.3rem;margin-top:36px;margin-bottom:12px}.legal p,.legal li{color:var(--text-secondary);font-size:1rem;line-height:1.8}.legal p+p{margin-top:12px}.legal ol,.legal ul{margin:12px 0;padding-left:24px}.legal li{margin-bottom:6px}.legal strong{color:var(--text-primary);font-weight:600}.legal a{color:var(--apple-blue);text-decoration:none;word-break:break-word}.legal a:hover{text-decoration:underline}