/* 电商采集大师 官网样式 */
:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #eef2ff;
  --ink: #1e293b;
  --muted: #64748b;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --border: #e2e8f0;
  --green: #10b981;
  --amber: #f59e0b;
  --red: #ef4444;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, .08);
  --maxw: 1080px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Segoe UI", sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.7; font-size: 16px;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* 顶部导航 */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.nav .container { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--ink); }
.nav-brand img { width: 32px; height: 32px; border-radius: 8px; }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: 15px; }
.nav-links a { color: var(--ink); }
.nav-links a:hover { color: var(--primary); text-decoration: none; }
.btn {
  display: inline-block; padding: 10px 22px; border-radius: 10px; font-size: 15px; font-weight: 600;
  transition: all .2s; cursor: pointer; border: 1px solid transparent; text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; }
.btn-outline { border-color: var(--primary); color: var(--primary); background: #fff; }
.btn-outline:hover { background: var(--primary-light); text-decoration: none; }
.btn-ghost { color: var(--ink); border-color: var(--border); background: #fff; }
.btn-lg { padding: 14px 32px; font-size: 17px; border-radius: 12px; }
.btn-sm { padding: 6px 14px; font-size: 13px; border-radius: 8px; }
.btn-block { display: block; width: 100%; }

/* Hero */
.hero { padding: 72px 0 64px; background: linear-gradient(160deg, #eef2ff 0%, #f8fafc 55%, #fff 100%); }
.hero .container { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.hero h1 { font-size: 40px; line-height: 1.3; margin-bottom: 18px; }
.hero h1 .accent { color: var(--primary); }
.hero p.sub { font-size: 17px; color: var(--muted); margin-bottom: 28px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 22px; }
.hero-meta { font-size: 13px; color: var(--muted); }
.hero-img { text-align: center; }
.hero-img .shot { border-radius: 16px; box-shadow: var(--shadow); border: 1px solid var(--border); width: 100%; max-width: 480px; }

/* 区块通用 */
.section { padding: 60px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 44px; }
.section-head h2 { font-size: 30px; margin-bottom: 12px; }
.section-head p { color: var(--muted); font-size: 16px; }

/* 功能卡片 */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: all .2s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.card .icon { font-size: 30px; margin-bottom: 12px; display: inline-block; }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14.5px; }
.card ul { margin-top: 10px; padding-left: 18px; color: var(--muted); font-size: 14px; }
.card ul li { margin-bottom: 4px; }

/* 价格 */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; max-width: 900px; margin: 0 auto; }
.price-card { border: 1px solid var(--border); border-radius: 16px; padding: 30px 26px; background: #fff; text-align: center; position: relative; }
.price-card.hot { border-color: var(--primary); box-shadow: 0 12px 34px rgba(79,70,229,.18); }
.price-card .tag { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: 12px; padding: 4px 14px; border-radius: 20px; font-weight: 600; }
.price-card h3 { font-size: 19px; margin-bottom: 6px; }
.price-card .price { font-size: 34px; font-weight: 800; color: var(--primary); margin: 12px 0 4px; }
.price-card .price small { font-size: 14px; color: var(--muted); font-weight: 400; }
.price-card .desc { color: var(--muted); font-size: 14px; margin-bottom: 18px; min-height: 42px; }
.price-card ul { text-align: left; list-style: none; margin-bottom: 22px; }
.price-card ul li { padding: 5px 0; font-size: 14px; color: var(--ink); }
.price-card ul li::before { content: "✔ "; color: var(--green); font-weight: 700; }
.price-card ul li.no::before { content: "✘ "; color: var(--red); }
.price-note { text-align: center; color: var(--muted); font-size: 13px; margin-top: 22px; }

/* FAQ */
.faq-item { border: 1px solid var(--border); border-radius: 12px; padding: 20px 24px; margin-bottom: 14px; background: #fff; }
.faq-item summary { cursor: pointer; font-weight: 600; font-size: 16px; }
.faq-item p { margin-top: 10px; color: var(--muted); font-size: 14.5px; }

/* CTA */
.cta { background: linear-gradient(135deg, #4f46e5, #7c3aed); color: #fff; text-align: center; padding: 56px 20px; border-radius: 20px; }
.cta h2 { font-size: 28px; margin-bottom: 10px; }
.cta p { opacity: .9; margin-bottom: 24px; }
.cta .btn-primary { background: #fff; color: var(--primary); }
.cta .btn-primary:hover { background: #f1f5f9; }

/* 下载页/博客 */
.page-head { padding: 56px 0 30px; background: linear-gradient(160deg, #eef2ff, #f8fafc); }
.page-head h1 { font-size: 32px; margin-bottom: 8px; }
.page-head p { color: var(--muted); }
.prose { max-width: 760px; margin: 40px auto 80px; }
.prose h2 { font-size: 24px; margin: 32px 0 14px; }
.prose h3 { font-size: 19px; margin: 24px 0 10px; }
.prose p { margin-bottom: 14px; color: #334155; }
.prose ul, .prose ol { margin: 0 0 16px 22px; }
.prose li { margin-bottom: 6px; color: #334155; }
.prose blockquote { border-left: 4px solid var(--primary); background: var(--primary-light); padding: 12px 18px; border-radius: 0 10px 10px 0; margin: 18px 0; }
.prose code { background: #f1f5f9; padding: 2px 6px; border-radius: 6px; font-size: 14px; }
.prose table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14.5px; }
.prose table th, .prose table td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.prose table th { background: var(--bg-soft); }

/* 博客列表 */
.blog-list { max-width: 760px; margin: 40px auto 80px; }
.blog-card { display: block; border: 1px solid var(--border); border-radius: 14px; padding: 22px 26px; margin-bottom: 18px; color: var(--ink); transition: all .2s; }
.blog-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); text-decoration: none; }
.blog-card h2 { font-size: 20px; margin-bottom: 8px; color: var(--ink); }
.blog-card p { color: var(--muted); font-size: 14.5px; }
.blog-card .date { font-size: 12.5px; color: #94a3b8; margin-top: 8px; }

/* 下载步骤 */
.steps { counter-reset: step; max-width: 640px; margin: 0 auto; }
.step { display: flex; gap: 16px; margin-bottom: 26px; align-items: flex-start; }
.step::before { counter-increment: step; content: counter(step); flex: 0 0 34px; height: 34px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.step h3 { font-size: 17px; margin-bottom: 4px; }
.step p { color: var(--muted); font-size: 14.5px; }

/* 页脚 */
.footer { border-top: 1px solid var(--border); padding: 40px 0 28px; background: var(--bg-soft); margin-top: 60px; }
.footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; }
.footer h4 { font-size: 14px; margin-bottom: 12px; color: var(--ink); }
.footer a, .footer p { display: block; color: var(--muted); font-size: 13.5px; margin-bottom: 8px; }
.footer .copy { text-align: center; color: #94a3b8; font-size: 12.5px; margin-top: 26px; border-top: 1px solid var(--border); padding-top: 18px; }

/* 响应式 */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero h1 { font-size: 32px; }
  .hero-cta { justify-content: center; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; max-width: 420px; }
  .footer .cols { grid-template-columns: 1fr 1fr; }
  .nav-links { gap: 14px; font-size: 14px; }
}
@media (max-width: 560px) {
  .nav-links .hide-m { display: none; }
  .section { padding: 44px 0; }
}