/* 云擎出海 营销站 共享样式。配色:主蓝 #2563eb。占位内容由运营替换。 */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: #1f2733; background: #fff;
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif; line-height: 1.6;
}
a { color: #2563eb; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* 顶部导航 */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px); border-bottom: 1px solid #eef1f6; }
.nav { max-width: 1080px; margin: 0 auto; padding: 12px 24px; display: flex;
  align-items: center; justify-content: space-between; gap: 16px; }
.brand img { height: 40px; }
.links { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.links a { color: #475063; font-size: 15px; font-weight: 500; }
.links a:hover { color: #2563eb; }
.btn-sm { background: #2563eb; color: #fff !important; padding: 8px 16px; border-radius: 8px; font-weight: 600; }

/* 通用按钮 */
.btn { display: inline-block; padding: 12px 26px; border-radius: 10px; font-size: 15px;
  font-weight: 600; cursor: pointer; border: none; }
.btn.primary { background: #2563eb; color: #fff; }
.btn.ghost { background: #fff; color: #2563eb; border: 1px solid #cfd8e6; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* 区块 */
.hero { padding: 80px 0 56px; text-align: center; background: linear-gradient(180deg,#f3f7ff,#fff); }
.hero h1 { font-size: 38px; margin: 0 0 16px; line-height: 1.25; }
.hero p { font-size: 17px; color: #5b6677; max-width: 640px; margin: 0 auto 30px; }
.cta.center { justify-content: center; }
section.block { padding: 56px 0; }
section.block.alt { background: #f7f9fc; }
.section-title { text-align: center; font-size: 28px; margin: 0 0 8px; }
.section-sub { text-align: center; color: #7a8699; margin: 0 0 40px; }
.page-head { padding: 56px 0 8px; }
.page-head h1 { font-size: 32px; margin: 0 0 8px; }
.page-head p { color: #5b6677; margin: 0; }

/* 卡片网格 */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap: 20px; }
.card { background: #fff; border: 1px solid #e7ebf2; border-radius: 14px; padding: 26px; }
.card h3 { margin: 0 0 10px; font-size: 18px; }
.card p { margin: 0; color: #5b6677; font-size: 14px; }
.card .tag { display: inline-block; font-size: 12px; color: #2563eb; background: #eaf1ff;
  padding: 3px 10px; border-radius: 999px; margin-bottom: 12px; }
.card.soon { opacity: .7; }
.card.soon .tag { color: #94a3b8; background: #f1f5f9; }

/* 步骤 / FAQ / 列表 */
.steps { counter-reset: s; max-width: 760px; margin: 0 auto; }
.steps li { list-style: none; position: relative; padding: 14px 0 14px 48px; border-bottom: 1px solid #eef1f6; }
.steps li::before { counter-increment: s; content: counter(s); position: absolute; left: 0; top: 12px;
  width: 30px; height: 30px; border-radius: 50%; background: #2563eb; color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 700; }
.faq { max-width: 760px; margin: 0 auto; }
.faq details { border: 1px solid #e7ebf2; border-radius: 10px; padding: 14px 18px; margin-bottom: 12px; }
.faq summary { font-weight: 600; cursor: pointer; }
.faq p { color: #5b6677; margin: 10px 0 0; }
.req { max-width: 640px; margin: 0 auto; }
.req li { color: #475063; margin: 6px 0; }

.note { background: #eef4ff; border: 1px solid #d4e2ff; border-radius: 12px; padding: 16px 20px;
  color: #33486b; font-size: 14px; max-width: 760px; margin: 24px auto 0; }

/* 页脚 */
.site-footer { border-top: 1px solid #eef1f6; padding: 30px 24px; text-align: center;
  color: #9aa4b5; font-size: 13px; }
.site-footer a { color: #7a8699; }