:root {
  --bg: #fff8fb;
  --surface: #ffffff;
  --text: #2b2b2b;
  --muted: #666666;
  --primary: #d4237a;
  --primary-dark: #b71c67;
  --border: #f0d4e3;
  --shadow: 0 8px 24px rgba(212, 35, 122, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

a {
  color: var(--primary);
  text-decoration: none;
}

.container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}

.nav {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  font-weight: 700;
  font-size: 20px;
  color: var(--primary);
}

.menu {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.menu a {
  color: #4a4a4a;
  font-size: 14px;
}

.hero {
  padding: 72px 0 56px;
  background: linear-gradient(135deg, #fff0f7 0%, #fff 60%, #fef4fa 100%);
}

.hero h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.25;
}

.hero p {
  max-width: 760px;
  margin: 16px 0 0;
  color: var(--muted);
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: 10px;
  color: var(--primary);
  background: #fff;
  font-size: 14px;
}

.btn.primary {
  border-color: var(--primary);
  color: #fff;
  background: var(--primary);
}

.btn.primary:hover {
  background: var(--primary-dark);
}

.section {
  padding: 56px 0;
}

.section-alt {
  background: #fff;
}

.section h2 {
  margin: 0 0 16px;
  font-size: 30px;
}

.grid {
  margin-top: 18px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.list {
  margin: 0;
  padding-left: 20px;
}

.tip {
  margin-top: 14px;
  color: #7a3f5d;
  background: #fff3f9;
  border: 1px dashed #e6aac8;
  border-radius: 10px;
  padding: 12px;
}

.links {
  margin-top: 16px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.site-footer {
  padding: 18px 0 20px;
  border-top: 1px solid var(--border);
  background: #fff;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid #f5e3ec;
}

.footer-mini {
  display: grid;
  grid-template-columns: 1.2fr 1.2fr 0.8fr;
  gap: 12px;
  padding-top: 10px;
}

.mini-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: #7d6a74;
  font-size: 12px;
}

.mini-title {
  color: #5e4a55;
  font-size: 12px;
  font-weight: 600;
}

.mini-block a {
  font-size: 12px;
  color: #8a5370;
}

.mini-links {
  align-items: flex-start;
}

.process {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  text-align: center;
}

.step span {
  display: inline-flex;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--primary);
  font-weight: 600;
}

.step p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.doc {
  padding: 36px 0 64px;
}

.doc h1 {
  margin-top: 0;
  font-size: 34px;
}

.doc h2 {
  margin-top: 30px;
  font-size: 22px;
}

.doc p {
  margin: 10px 0;
}

@media (max-width: 900px) {
  .grid,
  .grid.two {
    grid-template-columns: 1fr;
  }

  .process {
    grid-template-columns: 1fr 1fr;
  }

  .footer-mini {
    grid-template-columns: 1fr;
  }
}