/* 顶部栏和按钮轻定制，保持 Material 的简洁感 */
:root {
  --mmf-hero-maxw: 860px;
}

.mmf-hero {
  text-align: center;
  padding: 3rem 1rem 2rem 1rem;
  max-width: var(--mmf-hero-maxw);
  margin: 0 auto;
}

.mmf-hero .logo {
  width: 160px;
  height: auto;
  margin-bottom: 1rem;
}

.mmf-hero h1 {
  font-size: 2.2rem;
  margin: 0.6rem 0;
}

.mmf-hero p.sub {
  font-size: 1.05rem;
  opacity: .85;
  margin: .2rem auto 1.2rem auto;
}

.mmf-actions {
  display: inline-flex;
  gap: .75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.mmf-btn {
  display: inline-block;
  padding: .55rem 1.1rem;
  border-radius: .6rem;
  text-decoration: none;
  font-weight: 600;
}

.mmf-btn.primary {
  background: linear-gradient(135deg, #3f51b5 0%, #ec407a 100%);
  /* background: var(--md-primary-fg-color); */
  color: #fff;
}

.mmf-btn.ghost {
  border: 1px solid var(--md-primary-fg-color);
  color: var(--md-primary-fg-color);
}

/* 卡片三列（自适应） */
.mmf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  max-width: var(--mmf-hero-maxw);
  margin: 1.5rem auto 0 auto;
}

.mmf-card {
  border: 1px solid var(--md-default-fg-color--lighter);
  border-radius: .8rem;
  padding: 1rem;
}
.mmf-card h3 { margin: .2rem 0 .4rem 0; }
.mmf-card p  { margin: 0; opacity: .85; }

.mmf-tags {
  display: flex; align-items: center; flex-wrap: wrap; gap: .4rem;
  margin: .4rem 0 1rem 0;
}
.mmf-tags-title { opacity: .75; font-size: .9rem; margin-right: .25rem; }
a.mmf-tag {
  display: inline-block;
  padding: .12rem .6rem;
  border-radius: 999px;
  border: 1px solid var(--md-primary-fg-color);
  color: var(--md-primary-fg-color);
  text-decoration: none;
  font-size: .82rem; font-weight: 600;
}
a.mmf-tag:hover { background: var(--md-primary-fg-color); color: #fff; }