*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#0070F9;--cyan:#00D6E1;--blue-dark:#0175FF;--green:#36BA78;--text:#2E3638;--text-light:#666B75;--bg:#f8f9fa;--white:#fff;--radius:12px;--shadow:0 4px 24px rgba(0,112,249,.08)}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);line-height:1.6;background:var(--white);overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);box-shadow:0 1px 0 rgba(0,0,0,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:8px}
.logo img{height:28px}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:15px;color:var(--text);font-weight:500;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.nav-cta{background:var(--primary);color:#fff!important;padding:8px 24px;border-radius:8px;font-weight:600;transition:all .2s}
.nav-cta:hover{background:var(--blue-dark);transform:translateY(-1px)}
.menu-toggle{display:none;flex-direction:column;gap:4px;cursor:pointer;background:none;border:none}
.menu-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px}
.hero{padding:120px 0 60px;background:linear-gradient(135deg,#f0f7ff 0%,#e8f4ff 50%,#f0fffe 100%);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-200px;right:-200px;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(0,214,225,.1) 0%,transparent 70%);pointer-events:none}
.hero::after{content:'';position:absolute;bottom:-100px;left:-100px;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(0,112,249,.08) 0%,transparent 70%);pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;position:relative;z-index:1}
.hero-text h1{font-size:42px;line-height:1.3;font-weight:800;margin-bottom:20px;color:var(--text)}
.hero-text h1 span{color:var(--primary)}
.hero-text p{font-size:17px;color:var(--text-light);margin-bottom:32px;line-height:1.8}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn-primary{background:var(--primary);color:#fff;padding:14px 36px;border-radius:10px;font-size:16px;font-weight:600;transition:all .3s;display:inline-block}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,112,249,.3)}
.btn-secondary{background:var(--white);color:var(--primary);border:2px solid var(--primary);padding:12px 34px;border-radius:10px;font-size:16px;font-weight:600;transition:all .3s;display:inline-block}
.btn-secondary:hover{background:var(--primary);color:#fff}
.hero-visual{position:relative}
.hero-img{width:100%;border-radius:16px;box-shadow:0 20px 60px rgba(0,112,249,.15)}
.hero-badge{position:absolute;top:-16px;right:-16px;background:var(--white);border-radius:12px;padding:12px 20px;box-shadow:var(--shadow);display:flex;align-items:center;gap:8px;font-weight:700;font-size:14px;color:var(--green)}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--green);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.stats{padding:60px 0;background:var(--white)}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;text-align:center}
.stat-item h2{font-size:40px;color:var(--primary);font-weight:800;margin-bottom:8px}
.stat-item p{color:var(--text-light);font-size:15px}
.features{padding:80px 0;background:var(--bg)}
.section-title{text-align:center;margin-bottom:56px}
.section-title h2{font-size:34px;font-weight:800;color:var(--text);margin-bottom:12px}
.section-title p{color:var(--text-light);font-size:16px}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.feature-card{background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);transition:all .3s;border:1px solid transparent}
.feature-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:0 12px 40px rgba(0,112,249,.12)}
.feature-icon{width:56px;height:56px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.feature-icon svg{width:28px;height:28px}
.feature-card h3{font-size:19px;font-weight:700;margin-bottom:12px}
.feature-card p{color:var(--text-light);font-size:14px;line-height:1.7}
.usecases{padding:80px 0;background:var(--white)}
.usecases-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.usecase-card{text-align:center;padding:32px 20px;border-radius:var(--radius);background:var(--bg);transition:all .3s}
.usecase-card:hover{background:linear-gradient(135deg,#e8f4ff,#f0fffe);transform:translateY(-2px)}
.usecase-card svg{width:48px;height:48px;margin:0 auto 16px}
.usecase-card h3{font-size:16px;font-weight:700;margin-bottom:8px}
.usecase-card p{font-size:13px;color:var(--text-light)}
.platforms{padding:60px 0;background:linear-gradient(135deg,#0070F9,#00D6E1);text-align:center;color:#fff}
.platforms h2{font-size:30px;font-weight:800;margin-bottom:16px}
.platforms p{font-size:16px;opacity:.9;margin-bottom:32px}
.platform-list{display:flex;justify-content:center;gap:32px;flex-wrap:wrap}
.platform-item{display:flex;flex-direction:column;align-items:center;gap:8px}
.platform-item svg{width:40px;height:40px;opacity:.95}
.platform-item span{font-size:13px;opacity:.9}
.cta{padding:80px 0;background:var(--bg);text-align:center}
.cta-box{background:linear-gradient(135deg,var(--primary),var(--blue-dark));border-radius:20px;padding:56px 32px;color:#fff}
.cta-box h2{font-size:30px;font-weight:800;margin-bottom:12px}
.cta-box p{font-size:16px;opacity:.9;margin-bottom:32px}
.cta-box .btn-white{background:#fff;color:var(--primary);padding:14px 40px;border-radius:10px;font-size:16px;font-weight:700;display:inline-block;transition:all .3s}
.cta-box .btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.15)}
.footer{background:#1a2332;color:#a0aab5;padding:60px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand p{font-size:14px;line-height:1.7;margin-top:16px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{border-top:1px solid #2a3245;padding-top:24px;text-align:center;font-size:13px}
.footer-bottom a{color:var(--cyan)}
.page-hero{padding:120px 0 48px;background:linear-gradient(135deg,#f0f7ff 0%,#e8f4ff 50%,#f0fffe 100%);text-align:center}
.page-hero h1{font-size:36px;font-weight:800;margin-bottom:16px}
.page-hero p{font-size:17px;color:var(--text-light);max-width:720px;margin:0 auto 28px;line-height:1.8}
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:60px 0}
.download-card{background:var(--white);border:1px solid #e8eef5;border-radius:var(--radius);padding:32px 24px;text-align:center;transition:all .3s;box-shadow:var(--shadow)}
.download-card:hover{border-color:var(--primary);transform:translateY(-4px)}
.download-card h3{font-size:20px;margin:16px 0 8px}
.download-card p{font-size:14px;color:var(--text-light);margin-bottom:20px}
.download-card .meta{font-size:13px;color:var(--text-light);margin-top:12px}
.guarantee{padding:60px 0;background:var(--bg)}
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.guarantee-item{text-align:center;padding:24px}
.guarantee-item h4{font-size:16px;margin-bottom:8px}
.guarantee-item p{font-size:13px;color:var(--text-light)}
.steps{padding:60px 0}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.step-item{text-align:center;padding:24px}
.step-num{width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;font-size:20px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.step-item h4{font-size:18px;margin-bottom:10px}
.step-item p{font-size:14px;color:var(--text-light);line-height:1.7}
.faq-list{max-width:800px;margin:0 auto;padding:40px 0 80px}
.faq-item{border:1px solid #e8eef5;border-radius:10px;margin-bottom:12px;overflow:hidden}
.faq-q{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;background:var(--white)}
.faq-q:hover{color:var(--primary)}
.faq-a{padding:0 24px 18px;color:var(--text-light);font-size:14px;line-height:1.8;display:none}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q span{transform:rotate(180deg)}
.content-section{padding:60px 0 80px}
.content-section h2{font-size:28px;margin-bottom:20px}
.content-section h3{font-size:20px;margin:28px 0 12px}
.content-section p{color:var(--text-light);margin-bottom:16px;line-height:1.8}
.content-section ul{margin:0 0 20px 20px;color:var(--text-light)}
.content-section li{margin-bottom:8px;line-height:1.7}
.feature-detail{padding:60px 0}
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:60px}
.feature-row.reverse{direction:rtl}
.feature-row.reverse>*{direction:ltr}
.feature-text .tag{display:inline-block;background:#e8f4ff;color:var(--primary);padding:4px 12px;border-radius:6px;font-size:13px;font-weight:600;margin-bottom:12px}
.feature-text h2{font-size:26px;margin-bottom:16px}
.feature-list{list-style:none;margin-top:16px}
.feature-list li{padding:8px 0 8px 28px;position:relative;color:var(--text-light);font-size:14px}
.feature-list li::before{content:'✓';position:absolute;left:0;color:var(--primary);font-weight:700}
.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding:40px 0 80px}
.article-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s;border:1px solid #eef2f7}
.article-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,112,249,.12)}
.article-card .thumb{height:160px;background:linear-gradient(135deg,#0070F9,#00D6E1);display:flex;align-items:center;justify-content:center;color:#fff;font-size:48px;font-weight:800}
.article-card .body{padding:24px}
.article-card .date{font-size:13px;color:var(--text-light);margin-bottom:8px}
.article-card h3{font-size:18px;margin-bottom:10px;line-height:1.4}
.article-card p{font-size:14px;color:var(--text-light);line-height:1.7;margin-bottom:16px}
.article-card .read-more{color:var(--primary);font-weight:600;font-size:14px}
.article-page{padding:100px 0 80px}
.article-meta{color:var(--text-light);font-size:14px;margin-bottom:24px}
.article-body{max-width:800px;margin:0 auto}
.article-body h1{font-size:32px;font-weight:800;margin-bottom:16px;line-height:1.4}
.article-body h2{font-size:22px;margin:32px 0 14px}
.article-body p{font-size:16px;color:var(--text-light);line-height:1.9;margin-bottom:18px}
.article-body ul{margin:0 0 20px 22px;color:var(--text-light)}
.article-body li{margin-bottom:10px;line-height:1.8}
.sitemap-list{padding:40px 0 80px;columns:2;column-gap:40px}
.sitemap-list a{display:block;padding:10px 0;color:var(--primary);font-size:15px;border-bottom:1px solid #eef2f7}
.sitemap-list a:hover{color:var(--blue-dark)}
@media(max-width:768px){
.nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:24px;gap:16px;box-shadow:0 4px 12px rgba(0,0,0,.08)}
.nav-links.active{display:flex}
.menu-toggle{display:flex}
.hero{padding:100px 0 40px}
.hero-inner,.feature-row,.feature-row.reverse{grid-template-columns:1fr;gap:32px;direction:ltr}
.hero-text h1,.page-hero h1{font-size:28px}
.features-grid,.usecases-grid,.download-grid,.articles-grid,.guarantee-grid,.steps-grid{grid-template-columns:1fr}
.stats-grid{grid-template-columns:1fr;gap:24px}
.footer-grid{grid-template-columns:1fr 1fr;gap:24px}
.platform-list{gap:20px}
.sitemap-list{columns:1}
}