:root {
  --mint: #a8e6cf;
  --mint-deep: #60bea0;
  --ink: #1a3c30;
  --ink-soft: #3d5c4e;
  --cream: #faf7f0;
  --card: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.7;
}

a { color: #1f7a5c; }

header, footer {
  background: var(--ink);
  color: var(--cream);
}

header .inner, footer .inner, main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

header .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
header .brand img { height: 32px; width: 32px; border-radius: 8px; }
nav { display: flex; gap: 20px; }
nav a { color: var(--cream); text-decoration: none; font-size: 15px; opacity: .9; }
nav a:hover { opacity: 1; }

.hero {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 64px 24px;
  max-width: 960px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.hero .text { flex: 1 1 320px; }
.hero h1 { font-size: 40px; margin: 0 0 8px; letter-spacing: 1px; }
.hero .tagline { font-size: 20px; color: var(--ink-soft); margin: 0 0 24px; }
.hero .mascot { flex: 0 0 240px; }
.hero .mascot img { width: 100%; }

.badge {
  display: inline-block;
  background: var(--ink);
  color: var(--cream);
  border-radius: 12px;
  padding: 12px 22px;
  text-decoration: none;
  font-weight: 600;
  margin-right: 12px;
}
.badge.ghost {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--ink);
}
.badge small { display: block; font-weight: 400; font-size: 12px; opacity: .75; }

.shots {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 16px 24px 48px;
  max-width: 960px;
  margin: 0 auto;
}
.shots img {
  height: 420px;
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(26, 60, 48, .18);
}

section.features {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

section.features h2 { text-align: center; font-size: 28px; margin-bottom: 32px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 16px rgba(26, 60, 48, .08);
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--ink-soft); font-size: 15px; }
.card .icon { font-size: 28px; margin-bottom: 8px; }

footer .inner {
  padding: 32px 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14px;
  opacity: .9;
}
footer a { color: var(--mint); text-decoration: none; margin-left: 16px; }

article.doc {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}
article.doc h1 { font-size: 32px; }
article.doc h2 { font-size: 22px; margin-top: 36px; }
article.doc table { border-collapse: collapse; width: 100%; font-size: 15px; }
article.doc th, article.doc td { border: 1px solid #d8e5de; padding: 8px 12px; text-align: left; }
article.doc th { background: #eef7f2; }
article.doc .meta { color: var(--ink-soft); font-size: 14px; }