:root {
  --bg: #0f1115;
  --card: #171a21;
  --muted: #a4acb9;
  --text: #f5f7fb;
  --accent: #ffb703;
  --accent-2: #fb8500;
  --border: #272b35;
  --max: 1140px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #0f1115 0%, #121722 100%);
  color: var(--text);
  line-height: 1.65;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.container { width: min(100% - 32px, var(--max)); margin: 0 auto; }
header {
  border-bottom: 1px solid var(--border);
  background: rgba(15,17,21,.92);
  position: sticky; top: 0; backdrop-filter: blur(10px); z-index: 20;
}
.nav { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; gap: 20px; }
.brand { font-size: 1.2rem; font-weight: 700; color: #fff; }
.nav-links { display: flex; gap: 16px; flex-wrap: wrap; }
.hero { padding: 64px 0 40px; }
.hero h1 { font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1.1; margin: 0 0 16px; }
.hero p { max-width: 760px; color: var(--muted); font-size: 1.05rem; }
.badge {
  display: inline-block; background: rgba(255,183,3,.12); border: 1px solid rgba(255,183,3,.35);
  color: var(--accent); padding: 7px 11px; border-radius: 999px; margin-bottom: 16px; font-size: .9rem;
}
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card {
  background: rgba(23,26,33,.9);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 14px 35px rgba(0,0,0,.2);
}
.card h2, .card h3 { margin-top: 0; }
.section { padding: 26px 0 40px; }
.muted { color: var(--muted); }
.button {
  display: inline-block;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #1b1300;
  font-weight: 700;
  padding: 12px 18px;
  border-radius: 12px;
}
.button.secondary {
  background: transparent; color: var(--text); border: 1px solid var(--border);
}
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.list-clean { list-style: none; padding: 0; margin: 0; }
.list-clean li { padding: 10px 0; border-bottom: 1px solid var(--border); }
.breadcrumbs { font-size: .95rem; color: var(--muted); padding: 18px 0 0; }
.breadcrumbs a { color: var(--muted); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 700px; }
th, td { border: 1px solid var(--border); padding: 12px; text-align: left; }
th { background: #11151d; }
.notice {
  background: rgba(255,183,3,.08); border-left: 4px solid var(--accent); padding: 14px 16px; border-radius: 12px;
}
footer { border-top: 1px solid var(--border); padding: 28px 0 50px; color: var(--muted); margin-top: 40px; }
.small { font-size: .92rem; }
.article h2 { margin-top: 36px; }
.article h3 { margin-top: 28px; }
.amazon-box {
  border: 1px solid rgba(255,183,3,.3);
  background: linear-gradient(180deg, rgba(255,183,3,.06), rgba(255,183,3,.02));
}
.keyword-chip {
  display:inline-block; margin:6px 8px 0 0; padding:8px 12px; border-radius:999px; border:1px solid var(--border); color:var(--muted);
}
@media (max-width: 680px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .hero { padding-top: 34px; }
}