:root {
  --ink: #12141a;
  --muted: #5b6270;
  --line: #e6e8ee;
  --bg: #f6f7f9;
  --card: #fff;
  --brand: #6d4aff;
  --brand-2: #ff2d78;
  --max: 1080px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.top-inner, .wrap, .foot-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}
.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
}
.brand img { width: 36px; height: 36px; border-radius: 10px; }
.nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.nav a { color: var(--muted); font-size: 14px; text-decoration: none; }
.nav a:hover, .nav a.is-on { color: var(--ink); font-weight: 600; }

.hero {
  background: linear-gradient(135deg, #1b1433 0%, #3a1870 55%, #7a1b4d 100%);
  color: #fff;
  padding: 72px 0 80px;
}
.hero h1 { margin: 0 0 12px; font-size: 44px; letter-spacing: .02em; }
.hero .lead { margin: 0 0 28px; max-width: 640px; font-size: 18px; color: rgba(255,255,255,.88); }
.btns { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
}
.btn-solid { background: #fff; color: #1b1433; }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.4); }
.btn-primary { background: var(--brand); color: #fff; }

.section { padding: 56px 0; }
.section h2 { margin: 0 0 8px; font-size: 28px; }
.section .sub { margin: 0 0 28px; color: var(--muted); }
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }

.phones {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  align-items: start;
}
.phone {
  background: #0d0e0e;
  color: #fff;
  border-radius: 28px;
  padding: 10px 10px 16px;
  border: 8px solid #1c1d22;
  min-height: 520px;
  box-shadow: 0 16px 40px rgba(18, 20, 26, .18);
}
.status {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px 10px;
  color: #fff;
}
.status .bat { width: 22px; height: 11px; border: 1px solid #fff; border-radius: 3px; position: relative; }
.status .bat::after {
  content: "";
  position: absolute;
  inset: 2px 8px 2px 2px;
  background: #4ade80;
}
.phone h4 { margin: 0 10px 10px; font-size: 16px; }
.chip-row, .list { padding: 0 8px; }
.chip {
  display: inline-block;
  margin: 0 6px 8px 0;
  padding: 4px 10px;
  border-radius: 999px;
  background: #1f2126;
  font-size: 12px;
}
.row {
  background: #17181b;
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 8px;
}
.row strong { display: block; font-size: 14px; }
.row span { color: #b8bcc6; font-size: 12px; }
.cta {
  margin: 12px 8px 0;
  text-align: center;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  border-radius: 12px;
  padding: 10px;
  font-size: 14px;
  font-weight: 700;
}

.prose {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px 36px 40px;
}
.prose h1 { margin-top: 0; }
.prose h2 { font-size: 20px; margin: 28px 0 8px; }
.prose p, .prose li { color: #2b3140; }
.meta { color: var(--muted); font-size: 13px; }

.flow {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  overflow-x: auto;
}
.flow-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: center;
}
.step {
  width: 150px;
  min-height: 88px;
  background: #f3f0ff;
  border: 1px solid #d9d1ff;
  border-radius: 12px;
  padding: 12px;
  text-align: center;
  font-weight: 600;
  font-size: 14px;
}
.step small { display: block; margin-top: 6px; font-weight: 400; color: var(--muted); }
.arrow { color: var(--brand); font-size: 22px; }

table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: #f0f1f5; }

.foot {
  margin-top: 48px;
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 28px 0 36px;
  color: var(--muted);
  font-size: 13px;
}
.foot a { color: var(--muted); }
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 18px;
}
.foot strong { display: block; color: var(--ink); margin-bottom: 8px; }
.beian { margin: 0; }

@media (max-width: 900px) {
  .grid, .phones, .foot-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .top-inner { flex-direction: column; align-items: flex-start; padding: 12px 0; }
}