/* 海鸥支付 - 原创样式表 */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #f5f7fb;
  color: #232634;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: #3663f6; text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.main { flex: 1; padding: 28px 20px 60px; width: 100%; max-width: 1180px; margin: 0 auto; }

/* Header */
.topbar {
  background: #ffffff;
  border-bottom: 1px solid #e6e9f2;
  position: sticky; top: 0; z-index: 20;
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; height: 60px; }
.brand { font-size: 18px; font-weight: 700; color: #1c2140; display: flex; align-items: center; gap: 10px; }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: inline-block; width: 22px; height: 22px; border-radius: 6px;
  background: linear-gradient(135deg, #4f78ff 0%, #7c5cff 100%);
  box-shadow: 0 3px 8px rgba(79, 120, 255, .35);
}
.topnav a { margin-left: 22px; color: #4a4e63; font-size: 14px; }
.btn-sm {
  display: inline-block; padding: 6px 14px; border-radius: 6px;
  background: #3663f6; color: #fff !important;
}
.btn-sm:hover { background: #2a52dd; text-decoration: none; }

/* Buttons */
.btn { display: inline-block; padding: 10px 20px; border-radius: 6px; background: #3663f6; color: #fff; border: 0; cursor: pointer; font-size: 14px; }
.btn:hover { background: #2a52dd; }
.btn.ghost { background: #fff; color: #3663f6; border: 1px solid #d5dcee; }
.btn.danger { background: #e04b4b; }
.btn.warn { background: #f39c12; }

/* Cards */
.card { background: #fff; border-radius: 10px; padding: 20px; box-shadow: 0 1px 3px rgba(15, 22, 60, .04); border: 1px solid #eaedf5; }
.card + .card { margin-top: 16px; }
.card h2, .card h3 { margin-top: 0; }

/* Grid */
.grid { display: grid; gap: 16px; }
.grid.g3 { grid-template-columns: repeat(3, 1fr); }
.grid.g4 { grid-template-columns: repeat(4, 1fr); }
.grid.g5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 720px) {
  .grid.g3, .grid.g4, .grid.g5 { grid-template-columns: repeat(2, 1fr); }
}

/* Stat tile */
.stat { background: #fff; padding: 20px; border-radius: 10px; border: 1px solid #eaedf5; }
.stat .label { color: #808499; font-size: 13px; }
.stat .value { font-size: 26px; font-weight: 700; margin-top: 6px; color: #1c2140; }

/* Table */
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th, .tbl td { padding: 10px 12px; text-align: left; border-bottom: 1px solid #eef0f7; }
.tbl th { background: #f8f9fd; color: #5b607a; font-weight: 500; }
.tbl tr:hover td { background: #fafbff; }

/* Form */
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; color: #5b607a; margin-bottom: 6px; }
.form-row input[type=text], .form-row input[type=password], .form-row input[type=email],
.form-row input[type=number], .form-row input[type=url], .form-row select, .form-row textarea {
  width: 100%; padding: 10px 12px; border: 1px solid #d5dcee; border-radius: 6px;
  font-size: 14px; background: #fff; outline: none;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: #3663f6; }

/* Alerts */
.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; font-size: 14px; }
.alert.err { background: #fff0f0; color: #b93030; border: 1px solid #f5cccc; }
.alert.ok  { background: #f0fff5; color: #2c8b4a; border: 1px solid #cce9d5; }
.alert.info{ background: #eef4ff; color: #2a52dd; border: 1px solid #cddaff; }

/* Badges */
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; }
.b-wait { background: #fef3d7; color: #a37200; }
.b-paid { background: #daf3e0; color: #1e7d3a; }
.b-ok   { background: #daf3e0; color: #1e7d3a; }
.b-exp  { background: #efeff2; color: #6f7285; }
.b-off  { background: #fce0e0; color: #a83232; }

/* Home hero */
.hero {
  background: linear-gradient(120deg, #4f78ff 0%, #7c5cff 100%);
  color: #fff; padding: 60px 40px; border-radius: 14px; margin-bottom: 24px;
}
.hero h1 { margin: 0 0 10px; font-size: 34px; }
.hero p  { opacity: .9; margin: 0 0 22px; max-width: 640px; }
.hero .btn { background: #fff; color: #3663f6; padding: 12px 26px; font-weight: 600; }
.hero .btn:hover { background: #f4f5ff; }

/* Auth box */
.auth-box { max-width: 380px; margin: 40px auto; }
.auth-box h2 { margin-top: 0; text-align: center; }

/* Pay page */
.pay-wrap { max-width: 520px; margin: 20px auto; }
.pay-amount { font-size: 40px; font-weight: 700; color: #e04b4b; text-align: center; margin: 10px 0; }
.pay-tip { text-align: center; color: #8b8f9c; font-size: 13px; margin-bottom: 20px; }
.pay-qr { display: flex; justify-content: center; padding: 20px; background: #fff; border-radius: 12px; }
.pay-qr img { max-width: 260px; height: auto; }
.pay-info { margin-top: 16px; font-size: 13px; color: #5b607a; }
.pay-info div { margin: 4px 0; }
.dim { color: #9195a8; }

/* Footer */
.footer { background: #fff; border-top: 1px solid #eaedf5; padding: 18px 0; margin-top: 30px; color: #8b8f9c; font-size: 13px; }
.footer .wrap { display: flex; justify-content: space-between; }

/* Code block */
pre.code { background: #1e2233; color: #d5dcee; padding: 14px 16px; border-radius: 8px; overflow: auto; font-size: 13px; }
code { background: #f0f2f8; padding: 2px 6px; border-radius: 4px; font-size: 13px; }