*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{color:#333;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#fff;font-family:Noto Sans SC,PingFang SC,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}ul{list-style:none}img{max-width:100%;display:block}.header{z-index:1000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff7;height:64px;position:fixed;top:0;left:0;right:0}.header-inner{align-items:center;gap:0;max-width:1200px;height:100%;margin:0 auto;padding:0 40px;display:flex}.header-logo{flex-shrink:0}.header-logo img{width:auto;height:40px}.header-nav{align-items:center;gap:0;margin:0 auto;display:flex}.nav-item{color:#333;padding:20px 22px;font-size:17px;font-weight:400;line-height:24px;transition:color .3s;position:relative}.nav-item:hover{color:#007ee5}.nav-item.active{color:#007ee5;font-weight:500}.nav-item.active:after{content:"";background:#007ee5;border-radius:1.5px;width:28px;height:3px;position:absolute;bottom:16px;left:50%;transform:translate(-50%)}.header-right{flex-shrink:0;align-items:center;gap:16px;display:flex}.lang-selector{cursor:pointer;border-radius:4px;align-items:center;gap:4px;padding:6px 10px;transition:background .2s;display:flex;position:relative}.lang-selector:hover{background:#f5f5f5}.lang-current{color:#333;font-size:14px}.lang-arrow{transition:transform .2s}.lang-selector:hover .lang-arrow{transform:rotate(180deg)}.lang-dropdown{z-index:100;background:#fff;border-radius:8px;min-width:120px;margin-top:4px;padding:8px 0;position:absolute;top:100%;right:0;box-shadow:0 4px 12px #00000026}.lang-option{color:#333;white-space:nowrap;padding:8px 20px;font-size:14px;transition:background .2s,color .2s;display:block}.lang-option:hover{color:#007ee5;background:#f2faff}.lang-option.active{color:#007ee5;font-weight:500}.header-twitter{border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;transition:background .2s;display:flex}.header-twitter:hover{background:#f5f5f5}.header-twitter svg{fill:#333;transition:fill .2s}.header-twitter:hover svg{fill:#007ee5}.footer{background:#fafbfc;border-top:1px solid #eee;padding:50px 40px 40px}.footer-inner{gap:120px;max-width:1100px;margin:0 auto;display:flex}.footer-col{flex:none}.footer-col-title{color:#222;margin-bottom:16px;font-size:14px;font-weight:600}.footer-links{flex-direction:column;gap:10px;display:flex}.footer-links a{color:#999;font-size:13px;transition:color .2s}.footer-links a:hover{color:#007ee5}.footer-bottom{text-align:center;color:#bbb;border-top:1px solid #eee;max-width:1100px;margin:30px auto 0;padding-top:20px;font-size:13px}.hero{min-height:720px;margin-top:-64px;padding-top:64px;position:relative;overflow:hidden}.hero:after{content:"";z-index:1;pointer-events:none;background:linear-gradient(#f2faff00 0%,#f2faff99 40%,#fff 100%);height:200px;position:absolute;bottom:0;left:0;right:0}.hero-bg{z-index:0;position:absolute;inset:0;overflow:hidden}.hero-bg-img{object-fit:cover;width:100%;height:100%}.hero-content{z-index:1;justify-content:space-between;align-items:flex-start;gap:20px;max-width:1200px;margin:0 auto;padding:80px 40px 60px;display:flex;position:relative}.hero-text{flex:none;max-width:540px;padding-top:20px}.hero-title{color:#222;letter-spacing:.5px;margin-bottom:24px;font-size:48px;font-weight:600;line-height:1.3}.hero-desc{color:#888;max-width:460px;margin-bottom:36px;font-size:15px;line-height:1.8}.hero-downloads{flex-direction:column;align-items:center;gap:10px;margin-bottom:36px;display:flex}.download-btn{color:#fff;cursor:pointer;background:#007ee5;border-radius:50px;justify-content:center;align-items:center;gap:10px;width:50%;padding:10px 0;font-size:15px;transition:background .2s,transform .2s;display:inline-flex}.download-btn:hover{background:#0069c8;transform:translateY(-1px)}.download-icon{justify-content:center;align-items:center;width:24px;height:24px;display:flex}.download-icon svg{fill:#fff}.download-label{font-size:15px;font-weight:500}.hero-more{color:#007ee5;font-size:15px;transition:opacity .2s;display:inline-block}.hero-more:hover{opacity:.7}.hero-devices{flex:0 640px;justify-content:flex-end;align-items:center;margin-right:-40px;display:flex}.devices-img{width:100%;max-width:680px;height:auto}.features{background:#fff;padding:80px 40px 100px}.features-inner{max-width:1060px;margin:0 auto}.features-title{text-align:center;color:#222;margin-bottom:60px;font-size:32px;font-weight:600}.features-grid{grid-template-columns:repeat(3,1fr);gap:40px 50px;display:grid}.feature-card{text-align:center;flex-direction:column;align-items:center;display:flex}.feature-icon{justify-content:center;align-items:center;width:140px;height:140px;margin-bottom:16px;display:flex}.feature-icon img{object-fit:contain;width:140px;height:140px}.feature-name{color:#333;margin-bottom:8px;font-size:17px;font-weight:600}.feature-desc{color:#b2b2b2;max-width:240px;font-size:14px;line-height:1.6}.page-banner{align-items:flex-end;height:360px;margin-top:-64px;padding-top:64px;display:flex;position:relative;overflow:hidden}.page-banner-bg{z-index:0;position:absolute;inset:0}.page-banner-bg-img{object-fit:cover;width:100%;height:100%}.page-banner-content{z-index:1;width:100%;max-width:1200px;margin:0 auto;padding:0 40px 60px;position:relative}.page-banner-title{color:#222;margin-bottom:12px;font-size:40px;font-weight:600}.page-banner-subtitle{color:#888;max-width:600px;font-size:15px;line-height:1.6}.apps-list{max-width:900px;margin:0 auto;padding:60px 40px 80px}.app-card{border-bottom:1px solid #f0f0f0;justify-content:space-between;align-items:flex-start;padding:30px 0;display:flex}.app-card:first-child{border-top:1px solid #f0f0f0}.app-card-left{flex:1;gap:20px;display:flex}.app-icon{background:#f5f7fa;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:56px;height:56px;display:flex}.app-info{flex:1}.app-name-row{flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:8px;display:flex}.app-name{color:#222;font-size:18px;font-weight:600}.app-version{color:#999;font-size:14px}.app-history{color:#007ee5;font-size:14px;transition:opacity .2s}.app-history:hover{opacity:.7}.app-features{color:#888;max-height:52px;font-size:14px;line-height:1.8;transition:max-height .3s;overflow:hidden}.app-features.expanded{max-height:500px}.app-features li{list-style:none}.app-more-btn{color:#007ee5;cursor:pointer;background:0 0;border:none;margin-top:4px;padding:4px 0;font-family:inherit;font-size:12px}.app-download-btn{color:#fff;white-space:nowrap;background:linear-gradient(135deg,#4da6ff 0%,#007ee5 100%);border-radius:30px;flex-shrink:0;justify-content:center;align-items:center;margin-top:10px;padding:10px 36px;font-size:15px;font-weight:500;transition:opacity .2s,transform .2s;display:inline-flex}.app-download-btn:hover{opacity:.9;transform:translateY(-1px)}.api-cards{grid-template-columns:repeat(2,1fr);gap:40px;max-width:960px;margin:0 auto;padding:60px 40px 80px;display:grid}.api-card{background:#fff;border:1px solid #f0f0f0;border-radius:12px;padding:36px;transition:box-shadow .3s}.api-card:hover{box-shadow:0 4px 20px #00000014}.api-card-title{color:#222;margin-bottom:14px;font-size:20px;font-weight:600}.api-card-desc{color:#888;margin-bottom:24px;font-size:15px;line-height:1.7}.api-card-btn{color:#fff;background:linear-gradient(135deg,#4da6ff 0%,#007ee5 100%);border-radius:30px;padding:10px 32px;font-size:14px;font-weight:500;transition:opacity .2s,transform .2s;display:inline-block}.api-card-btn:hover{opacity:.9;transform:translateY(-1px)}.faq-body{gap:60px;max-width:1100px;margin:0 auto;padding:50px 40px 80px;display:flex}.faq-sidebar{flex:0 0 220px}.faq-sidebar-title{color:#222;border-bottom:1px solid #eee;margin-bottom:20px;padding-bottom:12px;font-size:16px;font-weight:600}.faq-categories{flex-direction:column;gap:2px;display:flex}.faq-cat-btn{color:#666;cursor:pointer;text-align:left;background:0 0;border:none;border-radius:6px;justify-content:space-between;align-items:center;width:100%;padding:10px 12px;font-family:inherit;font-size:14px;transition:background .2s,color .2s;display:flex}.faq-cat-btn:hover{color:#333;background:#f5f7fa}.faq-cat-btn.active{color:#007ee5;background:#f2faff;font-weight:500}.faq-cat-btn svg{opacity:.4}.faq-cat-btn.active svg{opacity:1;color:#007ee5}.faq-content{flex:1;min-width:0}.faq-section-title{color:#222;border-bottom:1px solid #eee;margin-bottom:24px;padding-bottom:16px;font-size:20px;font-weight:600}.faq-list{flex-direction:column;margin:0;padding:0;display:flex}.faq-list dt,.faq-list dd{margin:0}.faq-item{border-bottom:1px solid #f0f0f0}.faq-question{color:#333;cursor:pointer;text-align:left;background:0 0;border:none;justify-content:space-between;align-items:center;gap:16px;width:100%;padding:18px 0;font-family:inherit;font-size:16px;font-weight:500;display:flex}.faq-question:hover{color:#007ee5}.faq-arrow{color:#999;flex-shrink:0;transition:transform .3s}.faq-item.open .faq-arrow{color:#007ee5;transform:rotate(180deg)}.faq-answer{max-height:0;transition:max-height .3s,padding .3s;overflow:hidden}.faq-item.open .faq-answer{max-height:500px;padding-bottom:18px}.faq-answer p{color:#666;font-size:15px;line-height:1.8}.privacy-body{gap:60px;max-width:1100px;margin:0 auto;padding:50px 40px 80px;display:flex}.privacy-sidebar{flex:0 0 200px;align-self:flex-start;position:sticky;top:100px}.privacy-sidebar-title{color:#222;border-bottom:1px solid #eee;margin-bottom:16px;padding-bottom:12px;font-size:16px;font-weight:600}.privacy-nav{flex-direction:column;gap:4px;display:flex}.privacy-nav-link{color:#666;border-radius:6px;padding:8px 12px;font-size:14px;transition:background .2s,color .2s;display:block}.privacy-nav-link:hover{color:#007ee5;background:#f2faff}.privacy-content{flex:1;min-width:0}.privacy-section{margin-bottom:40px}.privacy-section-title{color:#222;margin-bottom:14px;font-size:20px;font-weight:600}.privacy-section-text{color:#555;font-size:15px;line-height:1.9}.news-body{max-width:900px;margin:0 auto;padding:50px 40px 80px}.news-search{margin-bottom:24px}.news-search-input{box-sizing:border-box;border:1px solid #e0e0e0;border-radius:8px;outline:none;width:100%;padding:12px 16px;font-size:15px;transition:border-color .2s}.news-search-input:focus{border-color:#007ee5}.news-search-input::placeholder{color:#bbb}.news-empty{text-align:center;color:#999;padding:60px 0;font-size:15px}.news-list{flex-direction:column;display:flex}.news-item-link{color:inherit;border-bottom:1px solid #f0f0f0;text-decoration:none;transition:background .2s;display:block}.news-item-link:hover{background:#f9fbfd}.news-item{flex-direction:column;padding:28px 0;display:flex}.news-thumb{border-radius:10px;width:100%;height:200px;margin-bottom:20px;overflow:hidden}.news-thumb img{object-fit:cover;width:100%;height:100%;display:block}.news-info{gap:24px;display:flex}.news-date{flex-direction:column;flex:none;align-items:center;min-width:56px;padding-top:2px;display:flex}.news-day{color:#007ee5;font-size:32px;font-weight:700;line-height:1}.news-month{color:#999;margin-top:4px;font-size:13px}.news-content{flex:1}.news-title{color:#222;margin-bottom:10px;font-size:19px;font-weight:600;line-height:1.4}.news-summary{color:#777;-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:15px;line-height:1.8;display:-webkit-box;overflow:hidden}.news-pagination{justify-content:center;gap:8px;margin-top:40px;display:flex}.news-page-num{color:#666;cursor:pointer;border-radius:4px;justify-content:center;align-items:center;width:32px;height:32px;font-size:14px;transition:background .2s,color .2s;display:flex}.news-page-num.active{color:#fff;background:#007ee5}.news-detail-page{min-height:60vh}.news-detail-body{max-width:800px;margin:0 auto;padding:40px 40px 80px}.news-detail-back{color:#007ee5;margin-bottom:32px;font-size:14px;transition:opacity .2s;display:inline-block}.news-detail-back:hover{opacity:.7}.news-detail-empty{text-align:center;color:#999;padding:60px 0 24px;font-size:16px}.news-detail-header{margin-bottom:32px}.news-detail-title{color:#222;margin-bottom:12px;font-size:28px;font-weight:700;line-height:1.4}.news-detail-date{color:#999;font-size:14px}.news-detail-cover{border-radius:12px;margin-bottom:36px;overflow:hidden}.news-detail-cover img{width:100%;height:auto;display:block}.news-detail-content p{color:#555;margin-bottom:20px;font-size:16px;line-height:1.9}.news-detail-content p:last-child{margin-bottom:0}.app{flex-direction:column;min-height:100vh;display:flex}.main-content{flex:1;padding-top:64px}
