:root {
  --gold: #f5a623;
  --gold-dark: #d4881b;
  --gold-light: #ffe083;
  --red: #c0392b;
  --dark: #0a0a0f;
  --dark2: #12121a;
  --dark3: #1a1a28;
  --dark4: #22223a;
  --text: #e8e8f0;
  --text-muted: #9999b3;
  --white: #ffffff;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-gold: 0 0 30px rgba(245,166,35,0.3);
  --transition: 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  padding-bottom: 88px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--gold); text-decoration: none; }
ul { list-style: none; }
h1,h2,h3,h4 { line-height: 1.25; font-weight: 700; color: var(--white); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 24px); width: 100%; }

.announce-bar {
  background: linear-gradient(90deg, var(--red), #8b0000, var(--red));
  background-size: 200% 100%;
  animation: shimmerBg 3s linear infinite;
  padding: 10px clamp(12px, 3vw, 20px);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  text-align: center;
  font-size: clamp(0.72rem, 2.5vw, 0.88rem);
  font-weight: 600;
  color: var(--white);
  z-index: 100;
}
.announce-bar span { color: var(--gold-light); }
.announce-sep { white-space: nowrap; }
@keyframes shimmerBg {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

.header {
  position: sticky; top: 0; z-index: 999;
  background: rgba(10,10,15,0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(245,166,35,0.15);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px clamp(16px, 4vw, 24px);
  max-width: 1200px; margin: 0 auto; width: 100%;
}
.header-cta { display: flex; gap: 10px; align-items: center; flex-shrink: 0; }
.logo { display: flex; align-items: center; gap: 10px; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  padding: 8px 16px; border-radius: 8px; font-size: 0.9rem; font-weight: 600;
  color: var(--text); transition: var(--transition); white-space: nowrap;
}
.nav a:hover, .nav a.active { color: var(--gold); background: rgba(245,166,35,0.12); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius); font-weight: 700; font-size: 0.95rem;
  cursor: pointer; border: none; transition: var(--transition); white-space: nowrap;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--dark); box-shadow: 0 4px 20px rgba(245,166,35,0.35);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(245,166,35,0.5); }
.btn-outline { background: transparent; color: var(--gold); border: 2px solid var(--gold); }
.btn-outline:hover { background: var(--gold); color: var(--dark); }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; border-radius: var(--radius-lg); }

.hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  padding: 8px; background: none; border: none; margin-left: auto;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--gold); border-radius: 2px; }
.mobile-nav {
  display: none; flex-direction: column; background: var(--dark2);
  padding: 16px 20px; border-top: 1px solid rgba(245,166,35,0.15);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 12px 0; font-size: 1rem; font-weight: 600; color: var(--text);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.mobile-nav .btn-row { display: flex; gap: 10px; margin-top: 16px; }
.mobile-nav .btn-row .btn { flex: 1; }

.page-hero {
  position: relative; padding: clamp(40px, 7vw, 72px) 0 36px;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(245,166,35,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 10% 80%, rgba(192,57,43,0.08) 0%, transparent 60%),
    var(--dark);
  border-bottom: 1px solid rgba(245,166,35,0.12);
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(245,166,35,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,166,35,0.04) 1px, transparent 1px);
  background-size: 60px 60px; pointer-events: none;
}
.crumbs { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 18px; position: relative; }
.crumbs a { color: var(--text-muted); }
.crumbs a:hover { color: var(--gold); }
.crumbs span { color: var(--gold); }
.badge {
  display: inline-block; background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--dark); font-size: 0.72rem; font-weight: 800; padding: 4px 12px;
  border-radius: 100px; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 14px;
}
.page-hero h1 {
  font-size: clamp(1.7rem, 4.4vw, 2.7rem); max-width: 820px; margin-bottom: 14px; position: relative;
}
.page-hero h1 span { color: var(--gold); }
.lead { font-size: clamp(0.98rem, 2.2vw, 1.12rem); color: var(--text-muted); max-width: 720px; position: relative; }
.meta-row {
  display: flex; flex-wrap: wrap; gap: 14px 22px; margin-top: 22px;
  font-size: 0.82rem; color: var(--text-muted); position: relative;
}
.meta-row strong { color: var(--gold); }

.layout {
  display: grid; grid-template-columns: 1fr 280px; gap: 40px;
  padding: clamp(32px, 5vw, 56px) 0 80px; align-items: start;
}
.article { min-width: 0; }
.article p { margin-bottom: 16px; color: var(--text); font-size: 1.02rem; }
.article h2 { font-size: clamp(1.25rem, 3vw, 1.65rem); margin: 36px 0 14px; }
.article h3 { font-size: 1.12rem; margin: 26px 0 10px; color: var(--gold-light); }
.article ul.bullets { margin: 12px 0 20px; }
.article ul.bullets li {
  position: relative; padding: 8px 0 8px 28px; border-bottom: 1px solid rgba(255,255,255,0.05);
  color: var(--text);
}
.article ul.bullets li::before {
  content: '✓'; position: absolute; left: 0; color: var(--gold); font-weight: 800;
}
.article ol.steps-list { margin: 12px 0 20px; padding-left: 22px; }
.article ol.steps-list li { margin-bottom: 10px; color: var(--text); }

.quick-answer {
  background: var(--dark3); border: 1px solid rgba(245,166,35,0.25);
  border-left: 4px solid var(--gold); border-radius: var(--radius);
  padding: 18px 20px; margin: 8px 0 28px;
}
.quick-answer strong { color: var(--gold); display: block; margin-bottom: 6px; font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; }

.infographic {
  background: var(--dark2); border: 1px solid rgba(245,166,35,0.15);
  border-radius: var(--radius-lg); padding: 24px 18px; margin: 24px 0 32px;
}
.infographic h3 { text-align: center; margin: 0 0 20px; color: var(--white); }
.flow {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; position: relative;
}
.flow-step {
  background: var(--dark3); border: 1px solid rgba(245,166,35,0.12);
  border-radius: var(--radius); padding: 16px 12px; text-align: center;
}
.flow-num {
  width: 42px; height: 42px; margin: 0 auto 10px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--dark); font-weight: 900; display: flex; align-items: center; justify-content: center;
}
.flow-step p { font-size: 0.82rem; color: var(--text-muted); margin: 0; }
.flow-step strong { display: block; color: var(--white); font-size: 0.88rem; margin-bottom: 6px; }

.table-wrap { overflow-x: auto; margin: 18px 0 28px; -webkit-overflow-scrolling: touch; }
table {
  width: 100%; border-collapse: collapse; min-width: 520px; font-size: 0.92rem;
}
th, td { padding: 12px 14px; text-align: left; border-bottom: 1px solid rgba(255,255,255,0.06); }
th { background: var(--dark3); color: var(--gold); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; }
td { color: var(--text); }
tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

.card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 18px 0 28px; }
.card {
  background: var(--dark3); border: 1px solid rgba(245,166,35,0.12);
  border-radius: var(--radius); padding: 18px;
}
.card h3 { margin: 0 0 8px; font-size: 1rem; }
.card p { margin: 0; font-size: 0.9rem; color: var(--text-muted); }
.warn {
  background: rgba(192,57,43,0.12); border: 1px solid rgba(192,57,43,0.35);
  border-radius: var(--radius); padding: 16px 18px; margin: 18px 0 28px; color: var(--text);
}
.warn strong { color: #ff8a7a; }

.faq-item {
  background: var(--dark2); border: 1px solid rgba(245,166,35,0.1);
  border-radius: var(--radius); margin-bottom: 12px; overflow: hidden;
}
.faq-q {
  width: 100%; background: none; border: none; padding: 18px 20px; text-align: left;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  cursor: pointer; color: var(--white); font-size: 1rem; font-weight: 600;
}
.faq-q:hover { color: var(--gold); }
.faq-q .arrow {
  width: 28px; height: 28px; background: rgba(245,166,35,0.1); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; color: var(--gold); flex-shrink: 0;
}
.faq-item.open .faq-q .arrow { transform: rotate(180deg); background: var(--gold); color: var(--dark); }
.faq-a { max-height: 0; overflow: hidden; padding: 0 20px; transition: max-height 0.35s ease, padding 0.35s ease; }
.faq-item.open .faq-a { max-height: 420px; padding: 0 20px 18px; }
.faq-a p { color: var(--text-muted); margin: 0; font-size: 0.95rem; }

.cta-box {
  background: linear-gradient(135deg, var(--dark2), var(--dark4));
  border: 1px solid rgba(245,166,35,0.2); border-radius: var(--radius-lg);
  padding: 28px 22px; text-align: center; margin: 36px 0;
}
.cta-box h2 { margin: 0 0 10px; }
.cta-box p { color: var(--text-muted); margin-bottom: 18px; }
.cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.related { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.related a {
  background: var(--dark3); border: 1px solid rgba(245,166,35,0.12); border-radius: var(--radius);
  padding: 14px 16px; color: var(--white); font-weight: 600; font-size: 0.9rem;
}
.related a:hover { border-color: var(--gold); color: var(--gold); }

.toc {
  position: sticky; top: 92px; background: var(--dark2);
  border: 1px solid rgba(245,166,35,0.12); border-radius: var(--radius-lg); padding: 18px;
}
.toc h4 { color: var(--gold); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 12px; }
.toc a { display: block; color: var(--text-muted); font-size: 0.86rem; padding: 7px 0; border-bottom: 1px solid rgba(255,255,255,0.04); }
.toc a:hover { color: var(--gold); }

.schema-graph {
  margin: 24px 0 32px; background: var(--dark2); border-radius: var(--radius-lg);
  border: 1px solid rgba(245,166,35,0.15); padding: 16px;
}
.schema-graph svg { width: 100%; height: auto; }

.footer {
  background: var(--dark2); border-top: 1px solid rgba(245,166,35,0.1); padding: 48px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 32px; }
.footer-brand p { font-size: 0.88rem; color: var(--text-muted); max-width: 280px; margin-top: 12px; }
.footer-col h4 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--gold); margin-bottom: 14px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.88rem; color: var(--text-muted); }
.footer-col ul li a:hover { color: var(--gold); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 20px; }
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }
.disclaimer {
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 22px;
  font-size: 0.8rem; color: var(--text-muted);
}

.floating-cta { position: fixed; bottom: 28px; right: 28px; z-index: 500; }
.floating-cta .btn-gold { border-radius: 100px; padding: 14px 28px; box-shadow: 0 8px 32px rgba(245,166,35,0.5); }

@media (max-width: 1024px) {
  .layout { grid-template-columns: 1fr; }
  .toc { position: relative; top: 0; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .nav, .header-cta { display: none; }
  .hamburger { display: flex; }
}
@media (max-width: 768px) {
  .card-grid, .related { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .announce-sep { display: none; }
  .announce-bar { flex-direction: column; gap: 4px; }
  .flow { grid-template-columns: 1fr; }
  .cta-btns { flex-direction: column; }
  .cta-btns .btn { width: 100%; }
  .floating-cta { left: 16px; right: 16px; bottom: 16px; }
  .floating-cta .btn { width: 100%; }
  .faq-q { font-size: 0.92rem; padding: 16px; }
}