/* 基本重置 */
:root {
  --bg: #0f1724;
  --card: #0b1220;
  --muted: #9aa4b2;
  --accent: #2dd4bf;
  --accent-2: #60a5fa;
  --text: #e6eef6;
  --radius: 10px;
}

* {
  box-sizing: border-box
}

html,
body {
  height: 100%
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Roboto, "Hiragino Sans GB", PingFang SC, "Microsoft Yahei", Arial;
  background: linear-gradient(180deg, #061021 0%, #071426 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between
}

.site-header {
  backdrop-filter: blur(6px);
  padding: 0.6rem 0
}

.brand {
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  font-size: 1.1rem
}

.site-nav {
  display: flex;
  gap: 1rem
}

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

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: var(--text);
  font-size: 1.4rem
}

/* Hero */
.hero {
  padding: 3rem 0
}

.hero-inner {
  display: flex;
  gap: 2rem;
  align-items: center
}

.hero-copy {
  flex: 1
}

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

.tagline {
  color: var(--muted);
  margin-top: .5rem
}

.cta-row {
  margin-top: 1rem
}

.btn {
  display: inline-block;
  padding: .6rem 1rem;
  border-radius: 8px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text);
  text-decoration: none
}

.btn.primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border: 0
}

.hero-media {
  width: 380px;
  max-width: 40%
}

.mock-terminal {
  background: #041021;
  padding: 1rem;
  border-radius: 8px;
  color: #9ec8d8;
  overflow: auto
}

/* Features */
.features {
  padding: 2rem 0
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  padding: 1rem;
  border-radius: var(--radius);
  min-height: 120px
}

.card h3 {
  margin-top: 0
}

/* Docs */
.docs {
  padding: 1.5rem 0
}

.code,
pre.code {
  background: #071426;
  color: var(--muted);
  padding: 1rem;
  border-radius: 8px
}

pre.code,
pre {
  white-space: pre-wrap
}

.site-footer {
  padding: 1rem 0;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.02)
}

/* 响应式 */
@media (max-width:900px) {
  .grid {
    grid-template-columns: repeat(2, 1fr)
  }

  .hero-inner {
    flex-direction: column
  }

  .hero-media {
    width: 100%;
    max-width: none
  }
}

@media (max-width:640px) {
  .site-nav {
    position: absolute;
    right: 1rem;
    top: 64px;
    flex-direction: column;
    background: var(--card);
    padding: 1rem;
    border-radius: 8px;
    display: none
  }

  .site-nav.open {
    display: flex
  }

  .nav-toggle {
    display: inline-block
  }

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

  .hero h1 {
    font-size: 1.6rem
  }
}

/* 下载区样式 */
.download-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1rem
}

.download-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  padding: 1rem;
  border-radius: var(--radius);
  min-height: 140px;
  display: flex;
  flex-direction: column;
  justify-content: space-between
}

.download-card h3 {
  margin: 0 0 .5rem 0
}

.download-card .meta {
  color: var(--muted);
  font-size: .9rem;
  margin-top: .5rem
}

.download-btn {
  display: inline-block;
  padding: .5rem .9rem;
  border-radius: 8px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text);
  text-decoration: none
}

.download-btn:hover {
  opacity: .95
}

.muted {
  color: var(--muted);
  font-size: .9rem
}

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