:root {
  --bg: #0e0b1f;
  --panel: #1b1336;
  --panel-alt: #25194a;
  --accent: #ffcf40;
  --accent-2: #ff7a00;
  --text: #f3f0ff;
  --muted: #c4b7ec;
  --ok: #7dffb3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: radial-gradient(circle at top, #25164a, var(--bg) 50%);
}

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

a:hover {
  text-decoration: underline;
}

header {
  background: linear-gradient(135deg, #2f1b58, #160f30);
  border-bottom: 2px solid var(--accent-2);
}

.topbar {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 1px;
}

nav a {
  margin: 0 8px;
  font-weight: 600;
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 20px 70px;
}

.hero {
  background: linear-gradient(145deg, #221646, #140d2a);
  border: 1px solid #3c2a70;
  border-radius: 12px;
  padding: 28px;
  margin-bottom: 22px;
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin-top: 1.2em;
  color: #fff;
}

h1 {
  margin-top: 0;
  font-size: 2rem;
}

p {
  margin: 0.7em 0;
}

.btn-row {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #1a0d00;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 700;
  display: inline-block;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
  margin: 20px 0;
}

.card {
  background: var(--panel);
  border: 1px solid #433072;
  border-radius: 10px;
  padding: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0 22px;
  overflow: hidden;
  border-radius: 8px;
}

thead {
  background: #3b286d;
}

th,
td {
  border: 1px solid #4e3b84;
  padding: 10px;
  vertical-align: top;
}

tbody tr:nth-child(odd) {
  background: var(--panel);
}

tbody tr:nth-child(even) {
  background: var(--panel-alt);
}

img.feature {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #4c3882;
  margin: 12px 0 16px;
}

ul {
  padding-left: 20px;
}

.notice {
  background: rgba(255, 122, 0, 0.1);
  border: 1px solid rgba(255, 122, 0, 0.5);
  border-radius: 8px;
  padding: 12px;
}

footer {
  border-top: 1px solid #3d2a72;
  background: #120b29;
  padding: 18px 20px;
  color: var(--muted);
  text-align: center;
}

.small {
  font-size: 0.93rem;
  color: var(--muted);
}

.ok {
  color: var(--ok);
  font-weight: 700;
}

.faq-item {
  background: var(--panel);
  border: 1px solid #433072;
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 12px;
}

.faq-item h3 {
  margin-top: 0;
  font-size: 1.05rem;
  color: var(--accent);
}

.toc {
  background: var(--panel-alt);
  border: 1px solid #433072;
  border-radius: 8px;
  padding: 16px 20px;
  margin: 20px 0;
}

.toc ol {
  margin: 8px 0 0;
}

.img-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 18px 0 22px;
}

.img-grid img {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #4c3882;
  margin: 0;
}

img.feature {
  display: block;
}