:root {
  --bg: #f8f7f4;
  --surface: #ffffff;
  --text: #1a1a1a;
  --muted: #5c5c5c;
  --accent: #c45c26;
  --accent-soft: #f3e8df;
  --border: #e8e4dd;
  --max: 52rem;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(26, 26, 26, 0.06);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui,
    -apple-system, "Segoe UI", sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration: none;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header__inner,
.site-footer__inner,
.page {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: inherit;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand__mark {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: linear-gradient(145deg, #e8a87c, var(--accent));
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--accent);
}

.hero {
  padding: 3.5rem 0 2.5rem;
}

.hero--compact {
  padding: 2.5rem 0 1.5rem;
}

.hero__eyebrow {
  display: inline-block;
  margin: 0 0 0.75rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.2;
}

.hero__lead {
  margin: 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.button--primary {
  background: var(--accent);
  color: #fff;
}

.button--secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.grid {
  display: grid;
  gap: 1rem;
  margin: 2rem 0 3rem;
}

@media (min-width: 640px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card h2,
.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.panel h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

.panel ul,
.panel ol {
  padding-left: 1.2rem;
}

.panel li + li {
  margin-top: 0.35rem;
}

.legal h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.2rem;
}

.legal h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.05rem;
}

.legal p,
.legal li {
  color: var(--text);
}

.legal .meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.lang-switch {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.site-footer {
  margin-top: 3rem;
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0.35rem 0;
}

.app-card__slug {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.app-card__links {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
}

.app-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.app-card h2 a {
  color: inherit;
  text-decoration: none;
}

.app-card h2 a:hover {
  color: var(--accent);
}

.mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}