:root {
  --pink: #ff4d8d;
  --purple: #8b5cf6;
  --ink: #1d1b2e;
  --ink-soft: #5b5870;
  --line: #efe7f3;
  --surface: #ffffff;
  --background: #fdf5fb;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--background);
  font-family: var(--font);
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--pink);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
}

.topbar .inner {
  display: flex;
  max-width: 880px;
  margin: 0 auto;
  padding: 14px 20px;
  align-items: center;
  gap: 10px;
}

.topbar .home {
  display: flex;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  align-items: center;
  gap: 9px;
}

.topbar img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.topbar .back {
  margin-left: auto;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 20px 72px;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(26px, 4vw, 34px);
  letter-spacing: -0.02em;
}

h2 {
  margin-top: 34px;
  padding-top: 6px;
  font-size: 20px;
  scroll-margin-top: 82px;
}

h3 {
  margin-top: 22px;
  font-size: 17px;
}

p,
li {
  line-height: 1.74;
}

ul,
ol {
  padding-left: 22px;
}

.meta,
.en {
  color: var(--ink-soft);
}

.meta {
  font-size: 14px;
}

.notice,
.contact-card {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}

.contact-card a {
  font-weight: 700;
  overflow-wrap: anywhere;
}

.legal-links {
  display: flex;
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 10px 18px;
}

.legal-links a {
  font-size: 14px;
  font-weight: 700;
}

@media (max-width: 560px) {
  .topbar .inner {
    align-items: flex-start;
  }

  .topbar .home {
    line-height: 1.25;
  }

  .topbar .back {
    max-width: 118px;
    text-align: right;
  }

  main {
    padding-top: 30px;
  }
}