*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:#333;background:#fff;line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* header */
.site-header{background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.header-top{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:22px;color:#222}
.logo-icon{width:42px;height:42px;background:linear-gradient(135deg,#ff7a00,#ff9d3f);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:700}
.header-right{display:flex;align-items:center;gap:22px;font-size:14px;color:#555}
.header-right .lang a{margin:0 4px;color:#ff7a00;font-weight:600}
.search-box{display:flex;align-items:center;background:#f5f5f5;border-radius:20px;padding:6px 14px}
.search-box input{border:none;background:transparent;outline:none;width:180px;font-size:13px}
.main-nav{border-top:1px solid #f0f0f0}
.nav-list{display:flex;align-items:center;list-style:none;gap:6px;justify-content:flex-start}
.nav-list li a{display:block;padding:16px 22px;font-size:15px;color:#333;font-weight:500}
.nav-list li a.active,.nav-list li a:hover{color:#ff7a00}
.nav-cta{margin-left:auto}
.btn{display:inline-block;padding:10px 24px;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;border:none}
.btn-primary{background:#ff7a00;color:#fff}
.btn-primary:hover{background:#e86e00}
.btn-outline{border:1px solid #ff7a00;color:#ff7a00;background:#fff}
.btn-outline:hover{background:#fff5eb}
.btn-lg{padding:14px 36px;font-size:16px}
/* hero */
.hero{background:linear-gradient(135deg,#f7f9ff 0%,#eef2fb 100%);padding:60px 0;overflow:hidden}
.hero-inner{display:flex;align-items:center;gap:40px}
.hero-content{flex:1}
.hero-tag{display:inline-block;color:#ff7a00;font-weight:600;font-size:14px;margin-bottom:14px}
.hero h1{font-size:44px;color:#1a2340;line-height:1.25;margin-bottom:16px}
.hero p.sub{font-size:16px;color:#5a6485;margin-bottom:28px;max-width:520px}
.hero-actions{display:flex;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.hero-visual{flex:1;text-align:center}
.hero-visual img{max-height:380px;margin:0 auto}
.download-info{display:flex;gap:20px;font-size:13px;color:#666;flex-wrap:wrap}
.download-info span{display:flex;align-items:center;gap:6px}
.download-info img{width:20px;height:20px}
/* sections */
.section{padding:70px 0}
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:32px;color:#1a2340;margin-bottom:12px}
.section-title p{color:#7a8199;font-size:15px}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:#fff;border:1px solid #eef0f5;border-radius:12px;padding:32px 24px;text-align:center;transition:.25s}
.feature-card:hover{box-shadow:0 10px 30px rgba(255,122,0,.08);transform:translateY(-4px);border-color:#ffd9b3}
.feature-card img{width:56px;height:56px;margin:0 auto 18px}
.feature-card h3{font-size:18px;color:#1a2340;margin-bottom:10px}
.feature-card p{color:#7a8199;font-size:14px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.info-card{background:#fff;border-radius:14px;padding:36px;box-shadow:0 6px 20px rgba(30,42,80,.06)}
.info-card h3{font-size:22px;margin-bottom:12px;color:#1a2340;display:flex;align-items:center;gap:10px}
.info-card p{color:#666;margin-bottom:24px}
.info-card .actions{display:flex;gap:12px}
.badge{display:inline-block;padding:2px 10px;border-radius:12px;background:#fff2e6;color:#ff7a00;font-size:12px;font-weight:600;margin-left:8px}
/* breadcrumb */
.breadcrumb{background:#f7f8fb;padding:14px 0;font-size:13px;color:#888}
.breadcrumb a{color:#888;margin:0 6px}
.breadcrumb a:first-child{margin-left:0}
.breadcrumb a:hover{color:#ff7a00}
/* page banner */
.page-banner{background:linear-gradient(135deg,#ff9d3f,#ff7a00);color:#fff;padding:70px 0;text-align:center}
.page-banner h1{font-size:40px;margin-bottom:14px}
.page-banner p{font-size:16px;opacity:.92;max-width:640px;margin:0 auto 26px}
/* footer */
.site-footer{background:#1a2340;color:#c8cee0;padding:50px 0 24px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer-brand h4{color:#fff;font-size:18px;margin-bottom:10px}
.footer-brand p{font-size:13px;color:#8892b0;line-height:1.8}
.footer-col h5{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px;font-size:13px}
.footer-col a:hover{color:#ff9d3f}
.footer-bottom{border-top:1px solid #2a3455;padding-top:20px;text-align:center;font-size:12px;color:#7c86a8}
/* misc */
.text-list{list-style:none;padding-left:0}
.text-list li{padding:14px 0;border-bottom:1px solid #f0f0f0;color:#555;display:flex;gap:12px;align-items:flex-start}
.text-list li:before{content:"";width:8px;height:8px;background:#ff7a00;border-radius:50%;margin-top:8px;flex-shrink:0}
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pain-item{background:#f8f9fc;padding:28px;border-radius:12px;border-left:4px solid #ff7a00}
.pain-item img{width:44px;height:44px;margin-bottom:14px}
.pain-item h4{font-size:17px;color:#1a2340;margin-bottom:8px}
.pain-item p{color:#666;font-size:14px}
.about-hero{display:flex;gap:40px;align-items:center}
.about-hero-text{flex:1}
.about-hero-text h1{font-size:36px;color:#1a2340;margin-bottom:18px}
.about-hero-text p{color:#5a6485;font-size:15px;line-height:1.9}
.about-hero-img{flex:1}
.culture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.culture-card{text-align:center;padding:36px 24px;background:linear-gradient(180deg,#fff,#f7f8fc);border-radius:14px;border:1px solid #eef0f5}
.culture-card img{width:60px;margin:0 auto 16px}
.culture-card h4{font-size:20px;color:#1a2340;margin-bottom:10px}
.culture-card p{color:#666}
@media (max-width:900px){
.hero-inner,.about-hero{flex-direction:column}
.feature-grid,.pain-grid,.culture-grid{grid-template-columns:1fr 1fr}
.two-col,.footer-grid{grid-template-columns:1fr}
.nav-list{flex-wrap:wrap}
.hero h1{font-size:32px}
.nav-cta{margin-left:0}
}
@media (max-width:560px){
.feature-grid,.pain-grid,.culture-grid{grid-template-columns:1fr}
.header-right .search-box{display:none}
}