* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  background: #0a0e1a;
  color: #e8ecf5;
  line-height: 1.75;
  font-size: 15px;
}
a { color: #00d4ff; text-decoration: none; transition: color .2s; }
a:hover { color: #5ce8ff; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.header {
  background: linear-gradient(180deg, #0f1626 0%, #0a0e1a 100%);
  border-bottom: 1px solid #1a2540;
  position: sticky; top: 0; z-index: 100;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo {
  font-size: 22px; font-weight: 800; color: #00d4ff; letter-spacing: 1px;
}
.logo span { color: #5ce8ff; }
.nav { display: flex; gap: 28px; }
.nav a { color: #c3ccdf; font-size: 15px; font-weight: 500; padding: 6px 2px; }
.nav a:hover, .nav a.active { color: #00d4ff; border-bottom: 2px solid #00d4ff; }

.btn {
  display: inline-block; padding: 11px 26px; border-radius: 6px;
  background: linear-gradient(90deg, #00d4ff 0%, #4f9eff 100%);
  color: #0a0e1a; font-weight: 700; font-size: 14px; cursor: pointer; border: none;
}
.btn-ghost {
  background: transparent; color: #00d4ff; border: 1px solid #00d4ff;
}

.hero {
  background:
    radial-gradient(circle at 20% 20%, rgba(0,212,255,.14), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(79,158,255,.14), transparent 50%),
    linear-gradient(180deg, #0f1626 0%, #0a0e1a 100%);
  padding: 80px 0 100px;
  text-align: center;
}
.hero h1 { font-size: 44px; font-weight: 800; margin-bottom: 20px; line-height: 1.3; }
.hero h1 .y { color: #00d4ff; }
.hero p { font-size: 18px; color: #c3ccdf; max-width: 780px; margin: 0 auto 32px; }
.hero-btns { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 50px; justify-content: center; margin-top: 60px; flex-wrap: wrap; }
.hero-stats .item { text-align: center; }
.hero-stats .num { font-size: 30px; font-weight: 800; color: #00d4ff; }
.hero-stats .lbl { color: #828faf; font-size: 13px; margin-top: 4px; }

.section { padding: 70px 0; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 32px; font-weight: 700; }
.section-title h2 .y { color: #00d4ff; }
.section-title p { color: #828faf; margin-top: 10px; }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card {
  background: #11182b; border: 1px solid #1a2540; border-radius: 12px;
  padding: 28px 22px; transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); border-color: #00d4ff; }
.card .ico { font-size: 36px; margin-bottom: 14px; }
.card h3 { font-size: 18px; margin-bottom: 10px; color: #fff; }
.card p { color: #9aa6bf; font-size: 14px; }

.list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.list .item {
  background: #11182b; border: 1px solid #1a2540; border-radius: 12px; padding: 24px;
}
.list .item .tag {
  display: inline-block; font-size: 12px; padding: 3px 10px; border-radius: 20px;
  background: rgba(0,212,255,.12); color: #00d4ff; margin-bottom: 10px;
}
.list .item h3 { font-size: 17px; margin-bottom: 8px; color: #fff; }
.list .item p { color: #9aa6bf; font-size: 14px; margin-bottom: 12px; }
.list .item .meta { color: #6b7591; font-size: 12px; }

.news-list { display: flex; flex-direction: column; gap: 18px; }
.news-item {
  display: flex; gap: 20px; background: #11182b; border: 1px solid #1a2540;
  border-radius: 10px; padding: 20px 24px; transition: border-color .2s;
}
.news-item:hover { border-color: #00d4ff; }
.news-item .date {
  flex: 0 0 80px; text-align: center; color: #00d4ff;
  border-right: 1px solid #1a2540; padding-right: 16px;
}
.news-item .date .d { font-size: 24px; font-weight: 700; }
.news-item .date .m { font-size: 12px; color: #828faf; }
.news-item .body h3 { font-size: 17px; margin-bottom: 6px; color: #fff; }
.news-item .body p { color: #9aa6bf; font-size: 14px; }
.news-item .body .meta { color: #6b7591; font-size: 12px; margin-top: 8px; }

.compat-table { width: 100%; border-collapse: collapse; background: #11182b; border-radius: 10px; overflow: hidden; }
.compat-table th, .compat-table td {
  padding: 14px 16px; text-align: left; border-bottom: 1px solid #1a2540;
}
.compat-table th { background: #0f1626; color: #c3ccdf; font-weight: 600; font-size: 13px; }
.compat-table td .ok { color: #16c784; font-weight: 700; }
.compat-table td .no { color: #ea3943; }

.step-grid { display: grid; grid-template-columns: repeat(4,1fr); gap:20px; }
.step-card {
  background: #11182b; border: 1px solid #1a2540; border-radius: 12px; padding: 28px 22px; text-align:center;
}
.step-card .num {
  width:48px;height:48px;line-height:48px;border-radius:50%;
  background: linear-gradient(90deg,#00d4ff,#4f9eff); color:#0a0e1a; font-weight:800; margin:0 auto 14px;
}
.step-card h3 { font-size:17px; color:#fff; margin-bottom:8px; }
.step-card p { color:#9aa6bf; font-size:14px; }

.faq { display: flex; flex-direction: column; gap: 14px; max-width: 880px; margin: 0 auto; }
.faq .q {
  background: #11182b; border: 1px solid #1a2540; border-radius: 10px; padding: 20px 24px;
}
.faq .q h3 { font-size: 16px; color: #00d4ff; margin-bottom: 8px; }
.faq .q p { color: #9aa6bf; font-size: 14px; }

.contact-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 30px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; color: #c3ccdf; font-size: 14px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 12px 14px; background: #0f1626; border: 1px solid #1a2540;
  border-radius: 6px; color: #fff; font-size: 14px; font-family: inherit;
}
.form-group textarea { min-height: 130px; resize: vertical; }
.info-box { background: #11182b; border: 1px solid #1a2540; border-radius: 10px; padding: 24px; }
.info-box h3 { color: #00d4ff; font-size: 17px; margin-bottom: 16px; }
.info-box .row { display: flex; gap: 12px; margin-bottom: 14px; color: #c3ccdf; }
.info-box .row .ico { font-size: 20px; }

.footer {
  background: #0f1626; border-top: 1px solid #1a2540; padding: 50px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 30px; }
.footer-col h4 { color: #fff; margin-bottom: 14px; font-size: 15px; }
.footer-col a { display: block; color: #828faf; margin-bottom: 8px; font-size: 14px; }
.footer-col p { color: #828faf; font-size: 14px; }
.footer-bottom { text-align: center; color: #6b7591; font-size: 13px; border-top: 1px solid #1a2540; padding-top: 20px; }

@media (max-width: 992px) {
  .cards, .list, .step-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
}
@media (max-width: 600px) {
  .nav { display: none; }
  .cards, .list, .step-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 50px 0 60px; }
  .hero h1 { font-size: 26px; }
  .section { padding: 40px 0; }
  .news-item { flex-direction: column; }
  .news-item .date { border-right: none; border-bottom: 1px solid #1a2540; padding-bottom: 10px; padding-right: 0; }
}