:root{
  --blue:#185fa5; --blue-d:#0c447c; --blue-l:#e6f1fb;
  --orange:#d85a30; --orange-l:#faece7;
  --ink:#262b33; --muted:#6a7280; --line:#e6e8ec; --bg:#ffffff; --gray:#f5f7fa;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",-apple-system,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
a{color:inherit;text-decoration:none}
img{max-width:100%}

.btn{display:inline-block;background:var(--orange);color:#fff;padding:12px 28px;border-radius:8px;font-weight:600;transition:.2s;border:none;cursor:pointer}
.btn:hover{background:#c04d26}
.btn-ghost{background:transparent;color:var(--orange);border:1.5px solid var(--orange)}
.btn-ghost:hover{background:var(--orange-l)}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-lg{padding:14px 34px;font-size:17px}
.btn-block{display:block;text-align:center;margin-top:16px}

.nav{position:sticky;top:0;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);z-index:50;backdrop-filter:blur(6px)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-size:21px;font-weight:700;color:var(--blue-d)}
.logo span{color:var(--orange)}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px}
.nav-links a:hover{color:var(--orange)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

.hero{background:linear-gradient(135deg,var(--blue-d) 0%,var(--blue) 60%,#2e7bc4 100%);color:#fff;padding:70px 0 80px}
.hero-inner{display:flex;align-items:center;gap:40px;justify-content:space-between}
.hero-text{flex:1;min-width:0}
.hero-tag{display:inline-block;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.35);padding:5px 14px;border-radius:99px;font-size:13px;margin-bottom:18px}
.hero h1{font-size:40px;line-height:1.3;margin-bottom:16px}
.hero-sub{opacity:.9;margin-bottom:28px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-btns .btn-ghost{color:#fff;border-color:rgba(255,255,255,.7)}
.hero-btns .btn-ghost:hover{background:rgba(255,255,255,.12)}
.hero-points{display:flex;gap:10px;flex-wrap:wrap;list-style:none}
.hero-points li{background:rgba(255,255,255,.12);padding:6px 16px;border-radius:6px;font-size:14px}
.hero-card{background:#fff;color:var(--ink);border-radius:16px;padding:26px 40px 30px;text-align:center;box-shadow:0 12px 40px rgba(0,0,0,.18);flex-shrink:0}
.hero-card-qr{width:200px;height:200px;display:block;object-fit:contain;background:#fff;border-radius:10px}
.hero-card-title{font-size:20px;font-weight:700;margin-top:12px}
.hero-card-sub{color:var(--muted);font-size:14px;margin-top:4px}

.section{padding:64px 0}
.section-gray{background:var(--gray)}
.sec-title{text-align:center;font-size:28px;margin-bottom:8px}
.sec-sub{text-align:center;color:var(--muted);margin-bottom:40px;font-size:15px}

.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.plan{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 24px;transition:.2s}
.plan:hover{box-shadow:0 8px 28px rgba(24,95,165,.12);transform:translateY(-3px)}
.plan-hot{border:2px solid var(--orange)}
.plan-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.plan-head h3{font-size:19px}
.plan-badge{background:var(--blue-l);color:var(--blue);font-size:12px;padding:3px 10px;border-radius:99px;white-space:nowrap}
.plan-badge.hot{background:var(--orange-l);color:var(--orange)}
.plan ul{list-style:none;font-size:14.5px}
.plan li{padding:7px 0;border-bottom:1px dashed var(--line);color:var(--muted)}
.plan li b{color:var(--ink);display:block;font-size:15px}
.plans-note{text-align:center;margin-top:26px;color:var(--muted);font-size:14px}
.plans-note a{color:var(--blue);font-weight:600}

.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;list-style:none;counter-reset:none}
.flow li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 20px;text-align:center}
.flow i{display:block;width:44px;height:44px;line-height:44px;border-radius:50%;background:var(--blue);color:#fff;font-style:normal;font-weight:700;margin:0 auto 12px}
.flow b{display:block;font-size:16px;margin-bottom:4px}
.flow span{font-size:13.5px;color:var(--muted)}

.whys{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.why{background:var(--blue-l);border-radius:14px;padding:26px}
.why b{display:block;font-size:17px;color:var(--blue-d);margin-bottom:6px}
.why span{font-size:14.5px;color:#3d4a5c}

.faq{max-width:800px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px 22px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;font-size:16px}
.faq details[open] summary{color:var(--blue);margin-bottom:6px}
.faq p{color:var(--muted);font-size:14.5px;padding-top:4px}

.contact-inner{display:flex;align-items:center;gap:48px;justify-content:center}
.contact-text h2{font-size:26px;margin-bottom:14px}
.contact-text p{color:var(--muted);margin-bottom:22px;max-width:520px}
.contact-qr{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;text-align:center;flex-shrink:0}
.contact-qr img{width:210px;height:210px;display:block}
.contact-qr figcaption{font-size:13px;color:var(--muted);margin-top:10px}

.footer{background:#1c2733;color:#9fb0c0;padding:34px 0;font-size:13.5px;text-align:center}
.footer p{margin:4px 0}

.btn-blue{background:var(--blue)}
.btn-blue:hover{background:var(--blue-d)}

.shop-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:20px}
.shop-frame{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 6px 24px rgba(24,95,165,.10)}
.shop-frame iframe{display:block;width:100%;height:640px;border:none}
.shop-fallback{text-align:center;color:var(--muted);font-size:14px;margin-top:14px}
.shop-fallback a{color:var(--blue);font-weight:600}

.quicks{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quick{display:block;background:var(--blue-l);border-radius:14px;padding:24px 20px;transition:.2s}
.quick:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(24,95,165,.14)}
.quick b{display:block;font-size:17px;color:var(--blue-d);margin-bottom:6px}
.quick span{display:block;font-size:13.5px;color:#3d4a5c;min-height:44px}
.quick i{display:block;font-style:normal;font-weight:600;color:var(--orange);font-size:14px;margin-top:8px}

.faq-note{max-width:800px;margin:14px auto 0;padding:14px 18px;border-radius:10px;font-size:14.5px;line-height:1.8}
.faq-note.ok{background:#eff6ff;border-left:4px solid var(--blue);color:var(--blue-d)}
.faq-note.warn{background:#fff7ed;border-left:4px solid #f59e0b;color:#92400e}

.contact-qr{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;text-align:center;flex-shrink:0}
.contact-qr img{width:190px;height:190px;display:block;object-fit:contain;background:#fff}
.contact-qr figcaption{font-size:13.5px;color:var(--muted);margin-top:10px}
.contact-btns{display:flex;gap:14px;flex-wrap:wrap}

@media(max-width:860px){
  .hero-inner{flex-direction:column;text-align:center}
  .hero-btns,.hero-points{justify-content:center}
  .hero h1{font-size:30px}
  .plans,.flow{grid-template-columns:1fr}
  .whys{grid-template-columns:1fr}
  .quicks{grid-template-columns:1fr 1fr}
  .quick span{min-height:0}
  .contact-inner{flex-direction:column;text-align:center}
  .contact-text p{margin:0 auto 22px}
  .shop-frame iframe{height:520px}
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;top:60px;left:0;right:0;background:#fff;flex-direction:column;padding:18px 20px;border-bottom:1px solid var(--line);gap:16px}
  .nav-links.open{display:flex}
}
@media(max-width:480px){
  .quicks{grid-template-columns:1fr}
  .hero-card{padding:20px 26px 24px}
  .hero-card-qr{width:160px;height:160px}
}