:root{
  --primary:#ff5c8a;
  --primary-dark:#d93f6b;
  --primary-light:#ffe2ec;
  --accent:#5b6cff;
  --text:#1f2430;
  --text-light:#5d6675;
  --bg:#ffffff;
  --bg-alt:#f7f8fc;
  --border:#e7e9f2;
  --shadow:0 6px 24px rgba(31,36,48,.08);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",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;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}

/* container */
.container{max-width:1200px;margin:0 auto;padding:0 20px;}

/* section */
.section{padding:80px 0;}
.section-alt{background:var(--bg-alt);}
.section-header{text-align:center;max-width:760px;margin:0 auto 52px;}
.section-title{font-size:clamp(24px,3vw,34px);margin-bottom:14px;letter-spacing:.5px;}
.section-title::after{content:"";display:block;width:56px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--accent));margin:16px auto 0;}
.section-subtitle{color:var(--text-light);font-size:15px;}

/* grid */
.grid{display:grid;gap:24px;}
.grid-2{display:grid;gap:24px;grid-template-columns:repeat(2,1fr);}
.grid-3{display:grid;gap:24px;grid-template-columns:repeat(3,1fr);}
.grid-4{display:grid;gap:24px;grid-template-columns:repeat(4,1fr);}
.flex{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.flex-between{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}

/* card */
.card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(31,36,48,.14);border-color:var(--primary-light);}
.card-icon{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary-dark);
  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);line-height:1.8;}
.card-body{margin-top:14px;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;
  transition:all .25s ease;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(255,92,138,.35);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--primary-dark);border:1.5px solid var(--primary);}
.btn-outline:hover{background:var(--primary-light);transform:translateY(-2px);}
.btn-sm{padding:8px 18px;font-size:13.5px;}

/* nav */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s,border-color .3s;
}
.nav.scrolled{box-shadow:0 4px 20px rgba(31,36,48,.08);border-color:var(--border);}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:14px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:.5px;}
.nav-logo span{color:var(--primary);}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-link{font-size:15px;color:var(--text-light);font-weight:500;position:relative;transition:color .25s;}
.nav-link:hover{color:var(--primary-dark);}
.nav-link::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--primary);transition:width .25s;}
.nav-link:hover::after{width:100%;}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:6px;}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--text);border-radius:2px;}

/* hero */
.hero{
  padding:150px 0 90px;
  background:linear-gradient(160deg,#fff5f8 0%,#f3f5ff 60%,var(--bg) 100%);
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;top:-120px;right:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,92,138,.18),transparent 70%);
}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2;}
.hero-title{
  font-size:clamp(30px,5vw,50px);max-width:820px;margin-bottom:22px;
  letter-spacing:1px;line-height:1.25;
}
.hero-title em{font-style:normal;color:var(--primary);}
.hero-subtitle{font-size:clamp(15px,1.6vw,18px);color:var(--text-light);max-width:640px;margin-bottom:34px;line-height:1.9;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:820px;}
.hero-stat{
  background:rgba(255,255,255,.8);border:1px solid var(--border);
  border-radius:var(--radius);padding:18px 20px;text-align:center;
  box-shadow:0 4px 16px rgba(31,36,48,.05);
}
.hero-stat-num{font-size:24px;font-weight:800;color:var(--primary-dark);}
.hero-stat-label{font-size:13px;color:var(--text-light);margin-top:4px;}

/* timeline */
.timeline{position:relative;padding-left:30px;}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--border);}
.timeline-item{position:relative;padding-bottom:30px;}
.timeline-dot{position:absolute;left:-30px;top:5px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--primary);}
.timeline-content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);}
.timeline-date{font-size:13px;color:var(--primary-dark);font-weight:600;margin-bottom:6px;}
.timeline-title{font-size:17px;margin-bottom:8px;}
.timeline-text{font-size:14.5px;color:var(--text-light);}

/* news */
.news-list{display:flex;flex-direction:column;gap:20px;}
.news-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;}
.news-item:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(31,36,48,.12);}
.news-title{font-size:18px;margin-bottom:10px;}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap;}
.news-date{font-size:13px;color:var(--text-light);}
.news-category{font-size:12px;background:var(--primary-light);color:var(--primary-dark);padding:3px 12px;border-radius:999px;font-weight:600;}
.news-summary{font-size:14.5px;color:var(--text-light);margin-bottom:12px;}
.news-body{font-size:14.5px;color:var(--text-light);}
.news-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.tag{font-size:12px;color:var(--accent);background:rgba(91,108,255,.1);padding:3px 12px;border-radius:999px;}

/* faq */
.faq-list{display:flex;flex-direction:column;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:10px;color:var(--text);}
.faq-answer{font-size:14.5px;color:var(--text-light);line-height:1.85;}

/* form */
.form-group{margin-bottom:20px;}
.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.form-input,.form-select,.form-textarea{
  width:100%;padding:12px 16px;font-size:15px;font-family:inherit;
  border:1px solid var(--border);border-radius:10px;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 4px rgba(255,92,138,.12);
}
.form-textarea{min-height:120px;resize:vertical;}
.form-submit{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 34px;border-radius:999px;background:var(--primary);color:#fff;
  font-size:15px;font-weight:600;box-shadow:0 8px 20px rgba(255,92,138,.35);transition:all .25s;
}
.form-submit:hover{background:var(--primary-dark);transform:translateY(-2px);}
.form-tip{font-size:12.5px;color:var(--text-light);margin-top:10px;}

/* data viz */
.stat-item{text-align:center;}
.stat-number{font-size:30px;font-weight:800;color:var(--primary-dark);}
.stat-label{font-size:13.5px;color:var(--text-light);margin-top:4px;}
.progress{height:10px;border-radius:999px;background:var(--border);overflow:hidden;}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));}
.bar-chart{display:flex;align-items:flex-end;gap:18px;height:200px;}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;}
.bar-fill{width:100%;max-width:46px;border-radius:8px 8px 0 0;background:linear-gradient(180deg,var(--primary),var(--accent));}
.bar-label{font-size:12.5px;color:var(--text-light);margin-top:10px;}

/* misc components */
.badge{display:inline-block;font-size:12px;font-weight:600;color:var(--primary-dark);background:var(--primary-light);padding:4px 12px;border-radius:999px;}
.customer-card,.case-card,.honor-card,.review-card,.benefit-card,.region-card,.support-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;
}
.customer-card:hover,.case-card:hover,.honor-card:hover,.review-card:hover,
.benefit-card:hover,.region-card:hover,.support-card:hover{
  transform:translateY(-4px);box-shadow:0 14px 34px rgba(31,36,48,.12);
}
.partner-logo{
  display:flex;align-items:center;justify-content:center;height:90px;
  border:1px dashed var(--border);border-radius:var(--radius);
  color:var(--text-light);font-size:13.5px;background:#fff;
}
.step-list{display:flex;flex-direction:column;gap:22px;}
.step-item{display:flex;gap:18px;align-items:flex-start;}
.step-number{
  flex:0 0 40px;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-weight:700;
}

/* footer */
.footer{background:#1b2030;color:#c7ccd9;padding:70px 0 0;margin-top:0;}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px;padding-bottom:46px;}
.footer-col{min-width:0;}
.footer-title{font-size:16px;color:#fff;margin-bottom:18px;}
.footer-link{display:block;font-size:14px;color:#9aa3b5;margin-bottom:10px;transition:color .25s;}
.footer-link:hover{color:var(--primary);}
.footer-info{font-size:14px;color:#9aa3b5;line-height:2;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;font-size:13px;color:#8b93a5;text-align:center;}

/* responsive */
@media (max-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{padding:130px 0 70px;}
  .footer-inner{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  .section{padding:60px 0;}
  .nav-list{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;
    gap:0;background:#fff;border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 20px;
  }
  .nav-list.active{max-height:340px;padding:12px 20px 20px;}
  .nav-link{display:block;width:100%;padding:12px 0;border-bottom:1px solid var(--border);}
  .nav-link::after{display:none;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .bar-chart{height:160px;gap:10px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .hero{padding:120px 0 56px;}
  .hero-stats{grid-template-columns:1fr;}
  .card{padding:22px;}
  .footer-inner{grid-template-columns:1fr;}
  .section-header{margin-bottom:36px;}
}