:root{
  --primary:#3a4bd8;
  --primary-dark:#28359c;
  --primary-light:#7b87f0;
  --accent:#f0a020;
  --text:#1e2233;
  --text-light:#68708c;
  --bg:#ffffff;
  --bg-alt:#f4f6fc;
  --border:#e3e7f2;
  --shadow:0 4px 18px rgba(30,34,51,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
h1,h2,h3,h4{line-height:1.3;font-weight:700;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:80px 0;}
.section-alt{background:var(--bg-alt);}
.section-header{text-align:center;max-width:760px;margin:0 auto 48px;}
.section-title{font-size:32px;color:var(--text);margin-bottom:14px;}
.section-subtitle{font-size:16px;color:var(--text-light);}
.grid{display:grid;gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flex{display:flex;align-items:center;}
.flex-between{display:flex;align-items:center;justify-content:space-between;}

/* 导航 */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);transition:box-shadow .3s,background .3s;border-bottom:1px solid transparent;}
.nav.scrolled{box-shadow:0 4px 20px rgba(30,34,51,.1);border-bottom-color:var(--border);}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:68px;display:flex;align-items:center;justify-content:space-between;}
.nav-logo{display:flex;align-items:center;gap:8px;font-size:19px;font-weight:700;color:var(--primary);letter-spacing:.5px;}
.nav-logo::before{content:"";width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--accent));display:inline-block;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{display:block;padding:8px 14px;font-size:15px;color:var(--text);border-radius:8px;transition:color .25s,background .25s;}
.nav-link:hover{color:var(--primary);background:var(--bg-alt);}
.nav-cta{padding:9px 20px;background:var(--primary);color:#fff;border-radius:999px;font-size:14px;font-weight:600;transition:background .25s,transform .25s;}
.nav-cta:hover{background:var(--primary-dark);transform:translateY(-1px);}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:10px;background:#fff;font-size:20px;color:var(--text);cursor:pointer;line-height:1;}

/* Hero */
.hero{padding:150px 0 90px;background:linear-gradient(160deg,#eef1ff 0%,#f7f8ff 55%,#ffffff 100%);position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-80px;border-radius:50%;background:radial-gradient(circle,rgba(58,75,216,.14),transparent 70%);}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2;text-align:center;}
.hero-title{font-size:48px;letter-spacing:.5px;margin-bottom:22px;color:var(--text);}
.hero-title span{color:var(--primary);}
.hero-subtitle{font-size:18px;color:var(--text-light);max-width:700px;margin:0 auto 36px;}
.hero-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:52px;}
.btn{display:inline-block;padding:13px 30px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;border:2px solid transparent;transition:transform .25s,box-shadow .25s,background .25s,color .25s;text-align:center;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(58,75,216,.28);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:8px 18px;font-size:13px;}
.hero-stats{display:flex;justify-content:center;gap:0;flex-wrap:wrap;max-width:820px;margin:0 auto;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 10px;}
.hero-stat{flex:1 1 160px;text-align:center;padding:8px 16px;border-right:1px solid var(--border);}
.hero-stat:last-child{border-right:none;}
.hero-stat-num{font-size:30px;font-weight:700;color:var(--primary);}
.hero-stat-label{font-size:13px;color:var(--text-light);margin-top:4px;}

/* 卡片 */
.card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;border:1px solid var(--border);}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(30,34,51,.12);}
.card-icon{width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary-light),var(--primary));color:#fff;font-size:22px;font-weight:700;margin-bottom:18px;}
.card-title{font-size:18px;margin-bottom:10px;color:var(--text);}
.card-text{font-size:14.5px;color:var(--text-light);}
.card-body{padding-top:0;}

/* 时间轴 */
.timeline{position:relative;padding-left:28px;border-left:2px solid var(--border);}
.timeline-item{position:relative;padding-bottom:28px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{position:absolute;left:-36px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 2px var(--primary-light);}
.timeline-content{padding-left:6px;}
.timeline-date{font-size:13px;color:var(--primary);font-weight:600;margin-bottom:4px;}
.timeline-title{font-size:16px;margin-bottom:4px;}
.timeline-text{font-size:14px;color:var(--text-light);}

/* 新闻 */
.news-list{display:grid;gap:20px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .3s;}
.news-item:hover{transform:translateY(-3px);}
.news-title{font-size:17px;margin-bottom:8px;}
.news-meta{display:flex;gap:12px;align-items:center;margin-bottom:8px;font-size:13px;color:var(--text-light);}
.news-date{color:var(--text-light);}
.news-category{background:var(--bg-alt);color:var(--primary);padding:2px 10px;border-radius:999px;font-size:12px;}
.news-summary{font-size:14px;color:var(--text-light);}
.news-body{font-size:14px;color:var(--text);}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{display:inline-block;padding:3px 12px;font-size:12px;border-radius:999px;background:var(--bg-alt);color:var(--primary);border:1px solid var(--border);}

/* FAQ */
.faq-list{display:grid;gap:16px;max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 26px;box-shadow:var(--shadow);}
.faq-question{font-size:16.5px;font-weight:700;margin-bottom:8px;color:var(--text);}
.faq-answer{font-size:14.5px;color:var(--text-light);}

/* 表单 */
.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text);}
.form-input,.form-select,.form-textarea{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:10px;font-size:14.5px;font-family:inherit;background:#fff;color:var(--text);transition:border-color .25s,box-shadow .25s;}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(58,75,216,.12);}
.form-textarea{min-height:120px;resize:vertical;}
.form-submit{display:inline-block;width:100%;padding:13px;border:none;border-radius:999px;background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .25s;}
.form-submit:hover{background:var(--primary-dark);}
.form-tip{font-size:12.5px;color:var(--text-light);margin-top:10px;}

/* 数据可视化 */
.stat-item{text-align:center;padding:18px;}
.stat-number{font-size:32px;font-weight:700;color:var(--primary);}
.stat-label{font-size:14px;color:var(--text-light);margin-top:6px;}
.progress{height:10px;border-radius:999px;background:var(--bg-alt);overflow:hidden;margin-top:8px;}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-light));}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:220px;padding:10px 0;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.bar-fill{width:100%;max-width:52px;border-radius:8px 8px 0 0;background:linear-gradient(180deg,var(--primary-light),var(--primary));}
.bar-label{font-size:12.5px;color:var(--text-light);margin-top:8px;text-align:center;}

/* 其他组件 */
.badge{display:inline-block;padding:3px 12px;border-radius:999px;background:rgba(58,75,216,.1);color:var(--primary);font-size:12px;font-weight:600;}
.customer-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.case-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.honor-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow);}
.partner-logo{display:flex;align-items:center;justify-content:center;height:76px;border:1px dashed var(--border);border-radius:var(--radius);color:var(--text-light);font-size:14px;background:#fff;}
.review-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.benefit-card{background:#fff;border-radius:var(--radius);padding:24px;border:1px solid var(--border);box-shadow:var(--shadow);}
.step-list{display:grid;gap:20px;}
.step-item{display:flex;gap:18px;align-items:flex-start;}
.step-number{flex:0 0 42px;width:42px;height:42px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;}
.region-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);}
.support-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}

/* 页脚 */
.footer{background:#161a2b;color:#c3c8db;padding:64px 0 0;}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-col{}
.footer-title{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;}
.footer-link{display:block;font-size:14px;color:#a7adc4;margin-bottom:10px;transition:color .25s;}
.footer-link:hover{color:#fff;}
.footer-info{font-size:14px;color:#a7adc4;line-height:2;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding:22px 20px;text-align:center;font-size:13px;color:#8b91a8;}
.footer-bottom a{color:#a7adc4;}
.footer-bottom a:hover{color:#fff;}

/* 响应式 */
@media (min-width:1200px){
  .container{padding:0 24px;}
}
@media (max-width:992px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .hero-title{font-size:40px;}
  .footer-inner{grid-template-columns:1fr 1fr;}
  .nav-list{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 20px;box-shadow:0 12px 24px rgba(30,34,51,.1);gap:2px;}
  .nav-list.open{display:flex;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-cta{display:none;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-title{font-size:25px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero{padding:120px 0 64px;}
  .hero-title{font-size:31px;}
  .hero-subtitle{font-size:16px;}
  .hero-stat{border-right:none;border-bottom:1px solid var(--border);flex:1 1 100%;}
  .hero-stat:last-child{border-bottom:none;}
  .footer-inner{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .hero-title{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .card{padding:22px;}
  .hero-stats{padding:16px 6px;}
}