:root {
  --bg: #0f1115;
  --bg-soft: #171a21;
  --card: #1d212b;
  --card-hover: #232936;
  --border: #2c3342;
  --text: #e7eaf0;
  --text-dim: #a3adc2;
  --text-faint: #7b8598;
  --accent: #7c5cff;
  --accent-2: #f5576c;
  --accent-grad: linear-gradient(135deg, #7c5cff 0%, #f5576c 100%);
  --hero-grad: radial-gradient(1200px 600px at 20% -10%, rgba(124, 92, 255, 0.35), transparent 60%),
              radial-gradient(1000px 500px at 90% 10%, rgba(245, 87, 108, 0.25), transparent 55%),
              var(--bg);
  --code-bg: #0b0d12;
  --code-border: #262d3b;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC",
    "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- Top navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 17, 21, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 62px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
}
.nav-logo .mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent-grad);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}
.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.92rem;
}
.nav-links a:hover { color: var(--text); background: var(--card); text-decoration: none; }
.nav-cta {
  padding: 7px 16px;
  border-radius: 9px;
  background: var(--accent-grad);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
}
.nav-cta:hover { text-decoration: none; opacity: 0.92; }

@media (max-width: 780px) {
  .nav-inner { flex-wrap: wrap; height: auto; padding: 12px 0; }
  .nav-links { order: 3; width: 100%; justify-content: flex-start; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 88px 0 72px;
  background: var(--hero-grad);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.hero-inner { text-align: center; max-width: 860px; margin: 0 auto; }
.hero h1 {
  font-size: 3.6rem;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.hero .tagline {
  font-size: 1.35rem;
  color: var(--text-dim);
  margin-bottom: 22px;
}
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124, 92, 255, 0.14);
  border: 1px solid rgba(124, 92, 255, 0.4);
  color: #c9bcff;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.9rem;
  margin-bottom: 26px;
}
.badges {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}
.badges img { height: 20px; }
.hero-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-2px); text-decoration: none; border-color: var(--accent); }
.btn-primary { background: var(--accent-grad); color: #fff; border-color: transparent; }
.btn-primary:hover { opacity: 0.94; }

@media (max-width: 640px) {
  .hero { padding: 56px 0 48px; }
  .hero h1 { font-size: 2.5rem; }
  .hero .tagline { font-size: 1.1rem; }
}

/* ---------- Sections ---------- */
.section { padding: 72px 0; border-bottom: 1px solid var(--border); }
.section:last-of-type { border-bottom: 0; }
.section-head { max-width: 720px; margin-bottom: 38px; }
.section-head .kicker {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.section-head h2 { font-size: 2rem; letter-spacing: -0.01em; margin: 8px 0 10px; }
.section-head p { color: var(--text-dim); }

/* ---------- Feature grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.card:hover { transform: translateY(-3px); background: var(--card-hover); border-color: #3a4356; }
.card .icon { font-size: 1.6rem; margin-bottom: 10px; }
.card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.card p { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- Code blocks ---------- */
.code {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 12px;
  padding: 18px 20px;
  font-family: var(--mono);
  font-size: 0.88rem;
  line-height: 1.6;
  overflow-x: auto;
  margin: 14px 0;
  color: #d7dce5;
}
.code .c { color: #6b7488; }
.code .p { color: #8b5cf6; }

/* ---------- Screenshots ---------- */
.shots {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.shot {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.shot:hover { border-color: #3a4356; }
.shot-wide { grid-column: 1 / -1; }
.shot img { display: block; width: 100%; height: auto; }
.shot figcaption {
  padding: 10px 14px;
  color: var(--text-dim);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 720px) {
  .shots { grid-template-columns: 1fr; }
}

/* ---------- Info rows / tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; min-width: 560px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
th { color: var(--text-dim); font-weight: 600; background: var(--bg-soft); }
tr:last-child td { border-bottom: 0; }
td { color: var(--text); }

/* ---------- Doc index ---------- */
.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 14px;
}
.doc-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.doc-card:hover { border-color: var(--accent); background: var(--card-hover); text-decoration: none; }
.doc-card .name { font-weight: 600; color: var(--text); font-family: var(--mono); font-size: 0.95rem; }
.doc-card .desc { color: var(--text-dim); font-size: 0.88rem; margin-top: 4px; }

/* ---------- Status pills ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(60, 187, 120, 0.14);
  color: #7ce0ac;
  border: 1px solid rgba(60, 187, 120, 0.35);
}
.pill.pending { background: rgba(224, 168, 60, 0.14); color: #f3cf7d; border-color: rgba(224, 168, 60, 0.35); }

/* ---------- Footer ---------- */
footer {
  padding: 48px 0;
  text-align: center;
  color: var(--text-faint);
  border-top: 1px solid var(--border);
}
footer .links { display: flex; justify-content: center; gap: 22px; flex-wrap: wrap; margin-bottom: 16px; }
footer .links a { color: var(--text-dim); font-size: 0.9rem; }
footer .links a:hover { color: var(--text); }

.note {
  background: rgba(124, 92, 255, 0.08);
  border: 1px solid rgba(124, 92, 255, 0.3);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--text-dim);
  font-size: 0.92rem;
  margin: 16px 0;
}