:root{
  --blue:#e8f6ff;
  --blue-deep:#2684b7;
  --blue-soft:#bde9ff;
  --cream:#fff5cf;
  --orange:#ffb15e;
  --orange-soft:#ffe0bd;
  --text:#243342;
  --muted:#667789;
  --white:#ffffff;
  --line:#e7edf3;
  --green:#7fcda5;
  --shadow:0 18px 50px rgba(38,132,183,.14);
  --radius:26px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#f7fcff 0%,#fffdf4 52%,#f8fcff 100%);
  line-height:1.75;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1160px,calc(100% - 36px));margin:0 auto}
.skip-link{position:absolute;left:-999px;top:auto;background:var(--blue-deep);color:#fff;padding:8px 14px;border-radius:12px;z-index:99}
.skip-link:focus{left:18px;top:12px}
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(231,237,243,.9);
}
.nav-wrap{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:#185d85}
.brand img{border-radius:14px}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav a{padding:9px 14px;border-radius:999px;color:#3c4d5f;font-weight:700}
.main-nav a:hover,.main-nav a.active{background:var(--blue);color:#10699a}
.nav-toggle{display:none;border:0;background:var(--blue);border-radius:16px;padding:10px;gap:4px;flex-direction:column}
.nav-toggle span{display:block;width:22px;height:2px;background:#185d85;border-radius:999px}
.hero{
  position:relative;overflow:hidden;
  padding:74px 0 42px;
}
.hero:before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 12% 18%,rgba(255,177,94,.22),transparent 24%),
    radial-gradient(circle at 92% 12%,rgba(189,233,255,.58),transparent 30%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.badge,.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 12px;border-radius:999px;
  background:var(--cream);color:#7a5a15;font-weight:700;font-size:.92rem;
}
.badge.blue{background:var(--blue);color:#0f6a96}
.hero h1{font-size:clamp(2.1rem,5vw,4.35rem);line-height:1.08;margin:0 0 18px;letter-spacing:-1px;color:#173a55}
.hero p{font-size:1.1rem;color:#53677a;margin:0 0 24px;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 20px;border-radius:999px;
  font-weight:800;border:1px solid transparent;box-shadow:0 10px 24px rgba(38,132,183,.12)
}
.btn.primary{background:#2684b7;color:#fff}
.btn.soft{background:#fff;color:#226886;border-color:#d9edf8}
.hero-card{
  background:rgba(255,255,255,.82);border:1px solid var(--line);
  border-radius:34px;box-shadow:var(--shadow);padding:20px;
}
.hero-card img{border-radius:26px}
.quick-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.quick-stats div{background:#fff;border:1px solid var(--line);border-radius:22px;padding:14px;text-align:center}
.quick-stats strong{display:block;font-size:1.35rem;color:#206f9e}
.section{padding:54px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:22px}
.section-title{margin:0;font-size:clamp(1.55rem,3vw,2.35rem);line-height:1.2;color:#173a55}
.section-lead{margin:8px 0 0;color:var(--muted);max-width:760px}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
  background:rgba(255,255,255,.9);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:0 12px 34px rgba(38,132,183,.08);
}
.card.highlight{background:linear-gradient(135deg,#fff 0%,#eaf8ff 100%)}
.card.warm{background:linear-gradient(135deg,#fff 0%,#fff3d9 100%)}
.card h3{margin:0 0 8px;font-size:1.18rem;color:#173a55}
.card p{margin:0;color:#5e7082}
.card ul{padding-left:20px;margin:12px 0 0;color:#5e7082}
.card li{margin:5px 0}
.card img{margin-bottom:14px;border-radius:20px}
.icon-card{display:flex;gap:14px;align-items:flex-start}
.icon{
  width:46px;height:46px;border-radius:16px;background:var(--blue);
  display:grid;place-items:center;color:#126a98;font-weight:900;flex:0 0 auto;
}
.pill-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.pill{background:#fff;border:1px solid #dfeaf2;border-radius:999px;padding:8px 12px;color:#496275;font-weight:700}
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:26px;align-items:center}
.panel{
  border-radius:34px;background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow);padding:24px;
}
.timeline{display:grid;gap:14px}
.timeline-item{display:grid;grid-template-columns:88px 1fr;gap:16px;align-items:start}
.time-dot{background:var(--cream);border-radius:18px;padding:10px;text-align:center;font-weight:800;color:#795812}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:24px;background:#fff}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:15px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#f2fbff;color:#1b668f}
tr:last-child td{border-bottom:0}
.feedback{display:grid;grid-template-columns:56px 1fr;gap:14px;align-items:start}
.avatar{width:56px;height:56px;border-radius:20px;background:linear-gradient(135deg,var(--blue-soft),var(--cream));display:grid;place-items:center;font-size:1.4rem}
.faq details{background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px 18px}
.faq details+details{margin-top:12px}
.faq summary{cursor:pointer;font-weight:800;color:#173a55}
.faq p{margin:10px 0 0;color:#5e7082}
.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.video-card{background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:0 12px 34px rgba(38,132,183,.08)}
.video-frame{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#e8f6ff,#fff5cf);display:grid;place-items:center}
.video-frame img{width:100%;height:100%;object-fit:cover}
.play{position:absolute;width:58px;height:58px;border-radius:50%;background:rgba(255,255,255,.88);box-shadow:0 10px 26px rgba(23,58,85,.12);display:grid;place-items:center}
.play:before{content:"";border-left:17px solid #2684b7;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.video-body{padding:18px}
.video-body h3{margin:0 0 8px;color:#173a55}
.notice{
  background:linear-gradient(135deg,#fff7dd,#eaf8ff);
  border:1px solid #f1e4bd;border-radius:28px;padding:20px;color:#405567;
}
.contact-form{display:grid;gap:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:grid;gap:7px;font-weight:800;color:#173a55}
input,textarea,select{
  width:100%;border:1px solid #dce9f2;border-radius:18px;padding:13px 14px;
  font:inherit;background:#fff;color:var(--text);outline:none;
}
textarea{min-height:132px;resize:vertical}
input:focus,textarea:focus,select:focus{border-color:#88cfee;box-shadow:0 0 0 4px rgba(136,207,238,.24)}
.site-footer{margin-top:44px;padding:36px 0;background:#173a55;color:#ecf8ff}
.footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:22px}
.footer-grid p{margin:8px 0 0;color:#cfe3ef}
.footer-grid strong{font-size:1.05rem}
.breadcrumb{padding:18px 0 0;color:#6a7b8b;font-size:.94rem}
.breadcrumb a{color:#1f729e;font-weight:700}
.page-hero{padding:42px 0 22px}
.page-hero h1{font-size:clamp(2rem,4vw,3.35rem);line-height:1.1;margin:0;color:#173a55}
.page-hero p{max-width:820px;color:#5b6e7e;font-size:1.08rem}
@media (max-width:960px){
  .hero-grid,.split,.footer-grid{grid-template-columns:1fr}
  .grid-3,.grid-4,.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section-head{display:block}
}
@media (max-width:760px){
  .nav-wrap{height:auto;min-height:68px;align-items:flex-start;padding:12px 0}
  .nav-toggle{display:flex;margin-top:2px}
  .main-nav{
    display:none;position:absolute;left:18px;right:18px;top:64px;
    background:#fff;border:1px solid var(--line);border-radius:22px;
    padding:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 14px}
  .hero{padding-top:42px}
  .grid-2,.grid-3,.grid-4,.video-grid{grid-template-columns:1fr}
  .quick-stats{grid-template-columns:1fr}
  .timeline-item{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .container{width:min(100% - 28px,1160px)}
}