:root{
  --primary:#5b7cfa;--secondary:#7a5af8;--accent:#22c55e;--dark:#0f172a;--muted:#64748b;--glass:rgba(255,255,255,.92);
  --danger:#ef4444;--danger2:#f43f5e;--shadow:0 12px 38px rgba(2,6,23,.16);
}
html,body{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #c7d2fe 0%, transparent 60%),
              radial-gradient(900px 500px at 100% 0%, #d8b4fe 0%, transparent 60%),
              linear-gradient(135deg,#eef2ff 0%,#faf5ff 100%);
  color:#111827; line-height:1.7; min-height:100vh;
}
img{max-width:100%;height:auto;display:block}
.top-bar{background:linear-gradient(90deg,var(--primary),var(--secondary));color:#fff;text-align:center;padding:12px 10px;font-weight:900;letter-spacing:.2px;box-shadow:var(--shadow)}
.nav{position:sticky;top:0;z-index:1000;background:var(--glass);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid rgba(0,0,0,.06)}
.nav-inner{max-width:1220px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:10px 20px}
.logo a{display:inline-block;font-size:22px;font-weight:900;text-decoration:none;letter-spacing:.3px;background:linear-gradient(45deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav ul{display:flex;list-style:none;gap:8px;flex-wrap:wrap}
.nav a.nav-link{
  background:linear-gradient(45deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  text-decoration:none;
  font-size:18px;
  font-weight:800;
  padding:8px 12px;
  border-radius:10px;
  transition:.2s;
}

.nav a.nav-link:hover{
  background:linear-gradient(45deg,var(--primary),var(--secondary));
  -webkit-background-clip:unset;
  -webkit-text-fill-color:#fff;
  color:#fff;
  transform:translateY(-1px);
  border-radius:10px;
}

.btn-login{
  background:linear-gradient(45deg,#16a34a,var(--accent));
  color:#fff;
  border:none;
  border-radius:999px;
  padding:10px 18px;
  font-size:14px;
  font-weight:900;
  text-decoration:none;
  box-shadow:var(--shadow);
}

.btn-login:hover{transform:translateY(-2px)}
.main{max-width:1220px;margin:0 auto;padding:0 20px}
.card{background:var(--glass);backdrop-filter:saturate(160%) blur(8px);border-radius:22px;box-shadow:var(--shadow);padding:48px 36px;margin:22px 0}
.h1{font-size:34px;font-weight:900;background:linear-gradient(45deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:10px;text-align:left}
.h2{font-size:28px;font-weight:900;background:linear-gradient(45deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:6px 0 12px;text-align:center}
.h3{font-size:20px;font-weight:900;color:#111827;margin:10px 0}
.lead{color:var(--muted);font-size:16px}
.header{display:flex;gap:28px;align-items:center}
.header .left{flex:1}
.header .right{flex:0 0 40%;max-width:40%}
.header img{width:100%;border-radius:18px;box-shadow:var(--shadow);aspect-ratio:16/9;object-fit:cover}
.cta{display:inline-block;margin-top:16px;background:linear-gradient(45deg,var(--primary),var(--secondary));color:#fff;padding:12px 26px;border-radius:14px;font-weight:900;text-decoration:none}
.badge{display:inline-block;background:#eef2ff;border:1px solid rgba(91,124,250,.25);color:#3730a3;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800;margin-right:6px}
.tabs{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin:10px 0 22px}
.tab-btn{font-size:18px;font-weight:800;padding:8px 16px;border-radius:999px;background:#f1f5f9;color:#0f172a;border:2px solid transparent;cursor:pointer}
.tab-btn.active{background:linear-gradient(45deg,var(--primary),var(--secondary));color:#fff;border-color:var(--primary)}
.tab-content{display:none}
.tab-content.active{display:block;animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:20px}
.product{background:#fff;border-radius:18px;padding:22px;border:3px solid transparent;box-shadow:0 8px 26px rgba(2,6,23,.12);transition:.2s}
.product:hover{transform:translateY(-4px);border-color:#22c55e}
.product h4{font-size:16px;font-weight:900}
.price{font-size:26px;color:#22c55e;font-weight:900;margin:8px 0}
.product ul{list-style:none;margin:12px 0 16px;padding-left:0}
.product li{position:relative;padding-left:18px;margin:6px 0;color:#374151}
.product li:before{content:'🌍';position:absolute;left:0;top:0;font-size:12px}
.product a{display:inline-block;background:linear-gradient(45deg,#16a34a,#22c55e);color:#fff;text-decoration:none;font-weight:900;padding:9px 18px;border-radius:999px}
.countries{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.country{background:#fff;border-radius:14px;padding:18px;text-align:center;border:3px solid transparent;box-shadow:0 8px 26px rgba(2,6,23,.12);transition:.2s}
.country:hover{border-color:#22c55e}
.flag{font-size:44px;margin-bottom:6px}
.country .name{font-weight:900}
.country .start{color:#22c55e;font-weight:900;margin-top:6px}
.feature-2col{display:grid;grid-template-columns:repeat(auto-fit,minmax(420px,1fr));gap:18px}
.panel{background:#fff;border-radius:14px;box-shadow:0 8px 26px rgba(2,6,23,.12)}
.panel .head{background:#0ea5e9;color:#fff;border-radius:14px 14px 0 0;padding:14px 18px;font-weight:900}
.panel .body{padding:16px 18px}
.panel li{margin:10px 0;list-style:none;position:relative;padding-left:22px}
.panel li:before{content:'✔';position:absolute;left:0;top:0;color:#16a34a}
.feature-3x{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.f3{background:#fff;border-radius:14px;box-shadow:0 8px 26px rgba(2,6,23,.12);padding:18px}
.pay-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.pay{background:#fff;border-radius:14px;box-shadow:0 8px 26px rgba(2,6,23,.12);padding:18px;text-align:center}
.footer{background:linear-gradient(135deg,#0f172a,#1f2937);color:#fff;border-radius:22px;box-shadow:var(--shadow)}
.footer-wrap{display:flex;gap:30px;padding:36px;flex-wrap:wrap}
.footer a{color:#93c5fd;text-decoration:none}
.footer a:hover{text-decoration:underline}
.footer .title{color:#fde047;font-weight:900;margin-bottom:10px}
.footer-bottom{text-align:center;color:#94a3b8;border-top:1px solid rgba(255,255,255,.08);padding:14px 0;margin:0 36px}
.kefu{position:fixed;top:35%;right:0;z-index:9999;display:flex;flex-direction:column;gap:12px}
.kefu a{display:flex;align-items:center;background:linear-gradient(45deg,var(--danger),var(--danger2));color:#fff;border-radius:30px 0 0 30px;min-width:60px;text-decoration:none;box-shadow:0 16px 36px rgba(244,63,94,.38);animation:bx 1.6s infinite}
.kefu a:hover{transform:translateX(-8px)}
.kefu .ico{width:56px;height:56px;display:flex;align-items:center;justify-content:center}.kefu .ico img{width:30px;height:30px;display:block;object-fit:contain}
.kefu span{padding:0 16px 0 6px;font-weight:900}
@keyframes bx{0%,100%{transform:translateX(0)}50%{transform:translateX(-6px)}}
/* 统一媒体模块，确保 d1~d5 为 16:9 并排 */
.media-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;margin-top:16px}
.media-card{background:#fff;border-radius:14px;box-shadow:0 8px 26px rgba(2,6,23,.12);padding:12px}
.media-card img{width:100%;border-radius:10px;box-shadow:var(--shadow);aspect-ratio:16/9;object-fit:cover}
.media-card .cap{font-size:13px;color:#475569;margin-top:8px}
.faq details{background:#fff;border-radius:14px;box-shadow:0 8px 26px rgba(2,6,23,.12);padding:14px;margin:10px 0}
.faq summary{font-weight:900;cursor:pointer;color:#0f172a}
@media(max-width:900px){.nav ul{display:none}.header{flex-direction:column}.header .right{max-width:100%}}