:root {
  --rose-ink: #4C0519;
  --rose-deep: #9F1239;
  --rose-mid: #BE123C;
  --rose-line: #FDA4AF;
  --rose-soft: #FECDD3;
  --rose-wash: #FFF1F2;
  --rose-card: #FFFFFF;
  --ink: #3F0D1A;
  --muted: #6B2A3A;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--rose-wash);
  color: var(--ink);
  line-height: 1.75;
}

img, svg { display: block; }

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

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--rose-ink);
  color: #FFF1F2;
  border-bottom: 4px solid var(--rose-mid);
}

.top-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 22px 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 1.05rem;
}

.brand svg { color: #FECDD3; }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 0.92rem;
}

.nav a { color: #FFF1F2; }
.nav a:hover { color: #FECDD3; text-decoration: none; border-bottom: 2px solid #FECDD3; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 22px 64px; }

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
  padding: 48px 0 36px;
}

.hero h1 {
  font-size: clamp(1.6rem, 3vw, 2.15rem);
  line-height: 1.35;
  color: var(--rose-ink);
  margin-bottom: 16px;
}

.hero p {
  font-size: 1.02rem;
  color: var(--muted);
  margin-bottom: 10px;
  max-width: 38em;
}

.ring-panel {
  background: var(--rose-card);
  border-radius: 28px;
  padding: 28px;
  box-shadow: 0 18px 40px rgba(76, 5, 25, 0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.ring-panel span {
  font-size: 0.88rem;
  color: var(--rose-deep);
  letter-spacing: 0.08em;
}

.section { margin: 42px 0; }

.section h2 {
  font-size: 1.45rem;
  color: var(--rose-ink);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--rose-soft);
}

.lead {
  margin-bottom: 16px;
  color: var(--ink);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.card {
  background: var(--rose-card);
  border-radius: 22px;
  padding: 22px 22px 18px;
  box-shadow: 0 10px 28px rgba(76, 5, 25, 0.07);
  border: 1px solid var(--rose-soft);
}

.card h3 {
  font-size: 1.05rem;
  color: var(--rose-deep);
  margin: 12px 0 8px;
}

.card p, .card li { margin-bottom: 10px; }

.card ul, .steps { padding-left: 1.2em; }

.mini-rings {
  display: flex;
  gap: 10px;
  margin: 8px 0 14px;
}

.steps-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.step {
  background: var(--rose-card);
  border-radius: 20px;
  padding: 18px;
  border-top: 6px solid var(--rose-mid);
}

.step b {
  display: block;
  color: var(--rose-mid);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.table-wrap {
  overflow-x: auto;
  background: var(--rose-card);
  border-radius: 22px;
  border: 1px solid var(--rose-soft);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th, td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rose-soft);
}

th {
  background: var(--rose-ink);
  color: #FFF1F2;
  font-weight: 600;
}

tr:last-child td { border-bottom: 0; }

.icon-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.icon-row > section { margin: 42px 0; }

.icon-row article {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  background: var(--rose-card);
  border-radius: 22px;
  padding: 18px;
  border: 1px solid var(--rose-soft);
}

.faq details {
  background: var(--rose-card);
  border-radius: 18px;
  margin-bottom: 12px;
  border: 1px solid var(--rose-soft);
  padding: 4px 16px 4px;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 14px 4px;
  color: var(--rose-ink);
  list-style: none;
}

.faq summary::-webkit-details-marker { display: none; }

.faq details[open] summary { border-bottom: 1px solid var(--rose-soft); }

.faq details p { padding: 12px 4px 16px; color: var(--muted); }

.foot {
  background: var(--rose-ink);
  color: #FECDD3;
  padding: 28px 22px 36px;
  font-size: 0.92rem;
}

.foot-inner { max-width: 1120px; margin: 0 auto; }

.foot p { margin-bottom: 8px; }

@media (max-width: 860px) {
  .hero, .split, .icon-row, .steps-bar { grid-template-columns: 1fr; }
}