*{box-sizing:border-box}html,body{margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:#16233f;background:#fff;line-height:1.85;font-size:18px}
a{text-decoration:none;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.site-header{position:sticky;top:0;z-index:10;background:#2a4ca4;color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.nav-wrap{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{font-size:26px;font-weight:800;white-space:nowrap}
.nav{display:flex;gap:30px;font-size:17px;align-items:center}
.nav a{opacity:.92}.nav a.active,.nav a:hover{opacity:1;color:#ffdfbf}
.nav-btns{display:flex;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 24px;border-radius:14px;font-weight:700;font-size:17px;transition:.2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:#ff8a1f;color:#fff;box-shadow:0 12px 24px rgba(255,138,31,.28)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.16)}
.btn-frost{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(8px)}
.btn-blue{background:#2648a1;color:#fff}
.btn-outline-blue{background:#fff;color:#2648a1;border:1px solid #dbe3f0}
.btn.large{padding:16px 28px;font-size:18px}
.btn.full{width:100%}
.clean-hero{position:relative;min-height:720px;background:url('assets/hero-bg.png') center/cover no-repeat;color:#fff;overflow:hidden}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,26,67,.18),rgba(10,26,67,.34))}
.hero-inner{position:relative;z-index:1;min-height:720px;display:flex;align-items:center;justify-content:center;text-align:center}
.hero-content{max-width:980px}
.hero-tag{display:inline-block;margin-bottom:18px;padding:10px 16px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.14);font-size:16px}
.hero h1{margin:0;font-size:78px;line-height:1.1;font-weight:900;text-shadow:0 4px 20px rgba(0,0,0,.22)}
.hero p{max-width:980px;margin:20px auto 0;font-size:32px;color:rgba(255,255,255,.94);text-shadow:0 2px 10px rgba(0,0,0,.2)}
.hero-actions{display:flex;justify-content:center;gap:16px;margin-top:32px;flex-wrap:wrap}
.section{padding:84px 0}
.section.alt{background:#f5f7fb}
.section-title{text-align:center;max-width:820px;margin:0 auto 36px}
.section-title h2{margin:0;font-size:48px;color:#22459f}
.section-title p{margin:14px 0 0;color:#667085;font-size:20px}
.grid{display:grid;gap:24px}
.grid.three{grid-template-columns:repeat(3,1fr)}
.grid.two{grid-template-columns:repeat(2,1fr)}
.grid.four{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid #e6ebf3;border-radius:24px;padding:32px;box-shadow:0 12px 30px rgba(18,37,90,.06)}
.card h3{margin:0 0 14px;color:#2347a1;font-size:30px}
.card p{margin:0;color:#4d5d79;font-size:18px;line-height:1.9}
.icon-box{display:flex;align-items:center;justify-content:center;width:62px;height:62px;border-radius:16px;background:#eef4ff;color:#22459f;font-size:28px;font-weight:800;margin-bottom:18px}
.icon-box.orange{background:#fff1e7;color:#ff8a1f}
.link-arrow{display:inline-block;margin-top:16px;color:#ff8a1f;font-weight:700;font-size:17px}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.price-card{position:relative;background:#fff;border-radius:22px;border:1px solid #dfe6f2;padding:32px;box-shadow:0 12px 30px rgba(18,37,90,.06)}
.price-card.highlight{border:2px solid #ff8a1f}
.price-card .badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:#ff8a1f;color:#fff;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700}
.price-card h3{margin:0;color:#2347a1;font-size:34px}
.price{margin:12px 0 18px;font-size:20px;color:#475467}
.price strong{font-size:56px;line-height:1;color:#ff8a1f}
.list{display:grid;gap:10px;margin:18px 0}
.list div{color:#4d5d79;font-size:18px;line-height:1.85}
.list div::before{content:"★ ";color:#ff8a1f}
.mini-note{font-size:16px;color:#7a869a;margin-top:8px;line-height:1.8}
.compare-wrap{overflow:auto;background:#fff;border:1px solid #e6ebf3;border-radius:20px;box-shadow:0 12px 30px rgba(18,37,90,.06)}
.compare-table{width:100%;border-collapse:collapse;min-width:880px}
.compare-table th,.compare-table td{padding:16px 14px;border-bottom:1px solid #eef2f7;text-align:left;vertical-align:top}
.compare-table thead th{background:#f7f9fc;color:#2347a1;font-size:18px}
.compare-table tbody td{font-size:17px;color:#334155;line-height:1.8}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table .center{text-align:center}
.compare-table .focus{background:#fff7ef}
.faq-list{display:grid;gap:16px;margin-top:26px}
.faq-item{background:#fff;border:1px solid #e6ebf3;border-radius:18px;padding:18px 20px}
.faq-item h4{margin:0 0 10px;color:#2347a1;font-size:22px}
.faq-item p{margin:0;color:#54627c;font-size:17px;line-height:1.9}
.cta-section{padding-top:0}
.cta-box{background:linear-gradient(135deg,#2347a1,#15336f);color:#fff;border-radius:28px;padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.cta-box h2{margin:0 0 10px;font-size:40px}
.cta-box p{margin:0;color:rgba(255,255,255,.84);font-size:18px;line-height:1.85}
.page-hero{padding:88px 0;background:linear-gradient(135deg,#24479d,#132b62);color:#fff}
.page-hero h1{margin:0;font-size:60px}
.page-hero p{margin:14px 0 0;font-size:24px;color:rgba(255,255,255,.88)}
.detail-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.detail-box{background:#fff;border:1px solid #e6ebf3;border-radius:22px;padding:28px;box-shadow:0 12px 30px rgba(18,37,90,.06)}
.detail-box h3{margin:0 0 14px;color:#2347a1;font-size:32px}
.detail-box h4{margin:18px 0 10px;color:#2347a1;font-size:22px}
.detail-list{margin:0;padding-left:24px;color:#465672;font-size:18px;line-height:1.9}
.detail-list li{margin-bottom:8px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.mini-tag{display:inline-block;padding:9px 14px;border-radius:999px;background:#eef4ff;color:#2347a1;font-size:15px;font-weight:700}
.sticky-card{position:sticky;top:96px}
.course-block{margin-top:18px;padding-top:18px;border-top:1px solid #eef2f7}
details.detail-accordion{background:#fff;border:1px solid #e6ebf3;border-radius:16px;padding:0 16px;margin-top:14px}
details.detail-accordion summary{cursor:pointer;padding:18px 0;font-weight:700;color:#2347a1;list-style:none;font-size:19px}
details.detail-accordion summary::-webkit-details-marker{display:none}
details.detail-accordion .content{padding:0 0 16px;color:#4d5d79;font-size:17px;line-height:1.9}
.content ol{margin:0;padding-left:20px}
.content li{margin-bottom:6px}
.site-footer{background:#0f2454;color:#fff;padding:44px 0}
.footer-wrap{display:flex;align-items:flex-start;justify-content:space-between;gap:30px}
.site-footer h3,.site-footer h4{margin:0 0 10px}
.site-footer p{margin:0 0 8px;color:rgba(255,255,255,.78);font-size:17px;line-height:1.8}
@media (max-width: 980px){
  .nav{display:none}
  .hero h1{font-size:54px}
  .hero p{font-size:24px}
  .grid.three,.grid.two,.grid.four,.pricing-grid,.detail-layout{grid-template-columns:1fr}
  .cta-box,.footer-wrap{flex-direction:column;align-items:flex-start}
  .sticky-card{position:static}
}
@media (max-width: 640px){
  .container{padding:0 16px}
  .nav-btns{display:none}
  .clean-hero{min-height:560px}
  .hero-inner{min-height:560px}
  .hero h1{font-size:40px}
  .hero p{font-size:19px}
  .section{padding:62px 0}
  .section-title h2{font-size:34px}
  .cta-box h2{font-size:30px}
  .page-hero h1{font-size:40px}
  .page-hero p{font-size:18px}
  .price strong{font-size:44px}
}
.contact-card{
  display: block;
  cursor: pointer;
  transition: .2s ease;
}

.contact-card:hover{
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0,0,0,.08);
}

.contact-card h3{
  margin: 0 0 12px;
}

.contact-card p{
  margin: 0;
}

.contact-tip{
  display: inline-block;
  margin-top: 14px;
  font-size: 15px;
  color: #ff8a1f;
  font-weight: 700;
}@media (max-width: 768px){
  .container{
    padding: 0 16px;
  }

  .nav{
    display: none;
  }

  .nav-btns{
    display: none;
  }

  .clean-hero{
    min-height: 560px;
  }

  .hero-inner{
    min-height: 560px;
    padding: 0 10px;
  }

  .hero h1{
    font-size: 38px;
    line-height: 1.2;
  }

  .hero p{
    font-size: 18px;
    line-height: 1.9;
  }

  .hero-tag{
    font-size: 13px;
    padding: 8px 12px;
  }

  .hero-actions{
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn{
    width: 100%;
    max-width: 260px;
  }

  .grid.two,
  .grid.three,
  .grid.four,
  .pricing-grid,
  .steps,
  .detail-layout{
    grid-template-columns: 1fr !important;
  }

  .section{
    padding: 56px 0;
  }

  .section-title h2{
    font-size: 30px;
    line-height: 1.25;
  }

  .section-title p{
    font-size: 16px;
    line-height: 1.8;
  }

  .card,
  .price-card,
  .detail-box,
  .step{
    padding: 22px;
  }

  .card h3,
  .price-card h3,
  .detail-box h3{
    font-size: 24px;
  }

  .card p,
  .faq-item p,
  .detail-list,
  .mini-note{
    font-size: 16px;
    line-height: 1.85;
  }

  .price strong{
    font-size: 40px;
  }

  .page-hero{
    padding: 60px 0;
  }

  .page-hero h1{
    font-size: 34px;
  }

  .page-hero p{
    font-size: 16px;
    line-height: 1.8;
  }

  .cta-box{
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }

  .cta-box h2{
    font-size: 28px;
  }

  .compare-wrap{
    overflow-x: auto;
  }

  .sticky-card{
    position: static;
  }

  .footer-wrap{
    flex-direction: column;
    gap: 20px;
  }
}
.hero-extra-link{
  margin-top: 24px;
  text-align: center;
}

.btn-outline{
  display: inline-block;
  padding: 14px 30px;
  border-radius: 14px;
  border: 2px solid #ffffff;
  color: #ffffff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(6px);
  transition: all 0.3s ease;
}

.btn-outline:hover{
  background: #ff8a1d;
  border-color: #ff8a1d;
  color: #fff;
}