* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #1a2332;
  background: #f6f8fb;
  line-height: 1.6;
}
.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; color: inherit; }

/* Header */
.site-header {
  background: #fff;
  border-bottom: 1px solid #e6eaf0;
  padding: 14px 0;
  position: sticky; top: 0; z-index: 10;
}
.site-header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 20px; font-weight: 700; color: #1a5cff; }
.site-header nav { display: flex; align-items: center; gap: 22px; font-size: 14px; color: #4a5568; }
.site-header nav a:hover { color: #1a5cff; }

/* Hero */
.hero { background: linear-gradient(135deg, #1a5cff 0%, #0f3dbb 100%); color: #fff; padding: 72px 0; text-align: center; }
.hero h1 { font-size: 40px; margin-bottom: 14px; }
.hero-sub { font-size: 17px; opacity: .9; max-width: 620px; margin: 0 auto 30px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Buttons */
.btn-primary {
  display: inline-block; background: #1a5cff; color: #fff !important;
  padding: 11px 26px; border-radius: 8px; font-weight: 600; border: none; cursor: pointer;
  font-size: 15px;
}
.hero .btn-primary { background: #fff; color: #1a5cff !important; }
.btn-ghost {
  display: inline-block; border: 2px solid rgba(255,255,255,.7); color: #fff;
  padding: 9px 24px; border-radius: 8px; font-weight: 600;
}
.btn-small { background: #1a5cff; color: #fff !important; padding: 6px 14px; border-radius: 6px; font-size: 13px; }
.btn-lg { width: 100%; padding: 14px; font-size: 16px; }
.btn-del { background: #fdecea; color: #d93025; border: none; border-radius: 6px; padding: 5px 12px; cursor: pointer; font-size: 13px; }

/* Features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; padding: 56px 20px; }
.feature { background: #fff; border: 1px solid #e6eaf0; border-radius: 12px; padding: 24px; }
.feature-icon { font-size: 30px; margin-bottom: 10px; }
.feature h3 { font-size: 16px; margin-bottom: 6px; }
.feature p { font-size: 14px; color: #5a6678; }

/* Pricing */
.pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; padding: 20px 20px 70px; max-width: 640px; margin: 0 auto; }
.price-card { background: #fff; border: 1px solid #e6eaf0; border-radius: 14px; padding: 28px; text-align: center; }
.price-card.hot { border: 2px solid #1a5cff; box-shadow: 0 8px 30px rgba(26,92,255,.12); }
.price-card h3 { font-size: 18px; margin-bottom: 8px; }
.price { font-size: 34px; font-weight: 700; color: #1a5cff; margin-bottom: 14px; }
.price small { font-size: 14px; font-weight: 400; color: #5a6678; }
.price-card ul { list-style: none; text-align: left; margin-bottom: 20px; font-size: 14px; color: #3a4558; }
.price-card li { padding: 5px 0; }

/* Page */
.page { padding: 48px 20px 70px; }
.page h1 { font-size: 30px; margin-bottom: 8px; }

/* Tool */
.tool-card { background: #fff; border: 1px solid #e6eaf0; border-radius: 14px; padding: 26px; margin-top: 24px; }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: #3a4558; }
.form-row input {
  width: 100%; padding: 10px 12px; border: 1px solid #d5dbe6; border-radius: 8px; font-size: 15px;
}
.doc-list { margin-top: 20px; }
.doc-item {
  display: flex; justify-content: space-between; align-items: center;
  background: #f8fafd; border: 1px solid #e6eaf0; border-radius: 10px; padding: 14px 16px; margin-bottom: 10px;
}
.doc-item.ok { border-left: 4px solid #22a06b; }
.doc-item.warn { border-left: 4px solid #e8a023; }
.doc-item.danger { border-left: 4px solid #d93025; }
.doc-right { display: flex; align-items: center; gap: 12px; }
.days { font-weight: 700; }
.danger .days { color: #d93025; }
.warn .days { color: #e8a023; }
.ok .days { color: #22a06b; }

/* Pay */
.pay-box { background: #fff; border: 1px solid #e6eaf0; border-radius: 14px; padding: 30px; max-width: 420px; margin: 26px auto 0; text-align: center; }
.pay-benefits { list-style: none; text-align: left; font-size: 14px; color: #3a4558; margin: 18px 0 22px; }
.pay-benefits li { padding: 4px 0; }

/* Footer */
.site-footer { background: #1a2332; color: #9aa5b5; text-align: center; padding: 28px 0; font-size: 13px; }
.site-footer a { color: #7ea2ff; }
.muted { color: #7a8698; font-size: 14px; }
.small { font-size: 12px; }