/* 小星云网络官网样式 - light theme */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "PingFang SC", sans-serif; color: #1f2937; background: #fff; line-height: 1.7; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; color: inherit; }

/* 导航 */
.nav { position: sticky; top: 0; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid #e5e7eb; z-index: 100; }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-size: 20px; font-weight: 800; color: #1d4ed8; }
.nav nav { display: flex; gap: 28px; }
.nav nav a { font-size: 15px; color: #4b5563; padding: 6px 0; }
.nav nav a.active, .nav nav a:hover { color: #1d4ed8; font-weight: 600; }
.cta { background: #1d4ed8; color: #fff !important; padding: 8px 20px; border-radius: 20px; font-size: 14px; font-weight: 600; }
.cta:hover { background: #1e40af; }

/* Hero */
.hero { background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 50%, #ede9fe 100%); padding: 90px 0 70px; text-align: center; }
.hero.small { padding: 60px 0 50px; }
.hero h1 { font-size: 40px; line-height: 1.3; font-weight: 800; }
.hero .hl { color: #1d4ed8; background: linear-gradient(120deg, #1d4ed8 20%, #7c3aed 90%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .sub { margin-top: 18px; font-size: 17px; color: #4b5563; }
.hero-btns { margin-top: 32px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn { padding: 13px 30px; border-radius: 26px; font-size: 16px; font-weight: 600; display: inline-block; }
.btn.primary { background: #1d4ed8; color: #fff; }
.btn.primary:hover { background: #1e40af; }
.btn.ghost { border: 2px solid #1d4ed8; color: #1d4ed8; }
.stats { margin-top: 50px; display: flex; justify-content: center; gap: 60px; flex-wrap: wrap; }
.stats b { display: block; font-size: 30px; color: #1d4ed8; }
.stats span { font-size: 13px; color: #6b7280; }

/* Section */
.section { padding: 70px 0; }
.section.gray { background: #f8fafc; }
.section h2 { text-align: center; font-size: 30px; font-weight: 800; }
.center-sub { text-align: center; color: #6b7280; margin: 14px 0 40px; font-size: 15px; }
.center { text-align: center; margin-top: 40px; }

/* 卡片 */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { background: #fff; border: 1px solid #e5e7eb; border-radius: 14px; padding: 28px 24px; }
.card:hover { box-shadow: 0 8px 24px rgba(29,78,216,.1); transform: translateY(-2px); transition: .25s; }
.card .icon { font-size: 34px; }
.card h3 { margin: 12px 0 8px; font-size: 18px; }
.card p { font-size: 14px; color: #6b7280; }
.svc { background: linear-gradient(160deg, #eff6ff, #fff); border: 1px solid #dbeafe; border-radius: 14px; padding: 26px 22px; }
.svc b { color: #7c3aed; font-size: 22px; }
.svc h3 { margin: 8px 0 6px; font-size: 17px; }
.svc p { font-size: 13px; color: #6b7280; }

/* FAQ */
.faq details { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 18px 22px; margin-bottom: 14px; }
.faq summary { font-weight: 700; cursor: pointer; font-size: 16px; }
.faq details[open] summary { color: #1d4ed8; }
.faq p { margin-top: 10px; color: #4b5563; font-size: 14.5px; }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { background: #fff; border: 1px solid #e5e7eb; border-radius: 14px; padding: 26px 22px; }
.step b { font-size: 26px; color: #dbeafe; -webkit-text-stroke: 1.5px #1d4ed8; }
.step h3 { margin: 8px 0 6px; font-size: 17px; }
.step p { font-size: 13.5px; color: #6b7280; }

/* 服务块 & 时间线 */
.svc-block { background: #fff; border-left: 4px solid #1d4ed8; border-radius: 0 12px 12px 0; box-shadow: 0 2px 10px rgba(0,0,0,.05); padding: 24px 28px; margin-bottom: 20px; }
.svc-block h3 { color: #1d4ed8; font-size: 19px; margin-bottom: 10px; }
.svc-block li { margin: 6px 0 6px 20px; color: #4b5563; font-size: 15px; }
.timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.t-item { background: #fff; border-radius: 12px; padding: 22px; border-top: 3px solid #7c3aed; }
.t-item b { color: #7c3aed; font-size: 14px; }
.t-item h4 { margin: 6px 0; font-size: 17px; }
.t-item p { font-size: 13.5px; color: #6b7280; }
.note { margin-top: 22px; font-size: 13px; color: #9ca3af; }

/* 联系 */
.big-contact { text-align: center; font-size: 24px; color: #1d4ed8; font-weight: 800; }
.contact-box { max-width: 560px; margin: 0 auto; background: #fff; border-radius: 14px; padding: 30px; box-shadow: 0 4px 18px rgba(0,0,0,.06); }
.contact-box div { padding: 10px 0; font-size: 16px; }
.contact-box b { color: #1d4ed8; font-size: 20px; }
.long { max-width: 820px; margin: 0 auto; color: #4b5563; font-size: 15.5px; }

/* 图文混排 & 图库 */
.founder-flex { display: flex; gap: 36px; align-items: flex-start; margin-top: 30px; }
.founder-photo { width: 260px; border-radius: 14px; flex-shrink: 0; box-shadow: 0 6px 20px rgba(0,0,0,.12); }
.founder-flex .long { margin: 0; }
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; margin-top: 10px; }
.gallery figure { background: #fff; border-radius: 14px; overflow: hidden; border: 1px solid #e5e7eb; }
.gallery img { width: 100%; height: 220px; object-fit: cover; display: block; }
.gallery figcaption { padding: 12px 16px; font-size: 13.5px; color: #6b7280; text-align: center; }

/* Footer */
footer { background: #111827; color: #9ca3af; padding: 34px 0; text-align: center; font-size: 13.5px; }
footer a { color: #9ca3af; }

@media (max-width: 768px) {
  .nav nav { display: none; }
  .hero h1 { font-size: 28px; }
  .grid3, .grid4, .steps, .timeline { grid-template-columns: 1fr; }
  .stats { gap: 30px; }
  .founder-flex { flex-direction: column; }
  .founder-photo { width: 200px; }
}