.soundbar20-article {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 18px;
  color: #1f1f1f;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.75;
}

.soundbar20-article h1 {
  font-size: 42px;
  line-height: 1.18;
  color: #111;
  text-align: center;
  margin: 20px 0 16px;
}

.soundbar20-article h2 {
  font-size: 30px;
  line-height: 1.3;
  color: #111;
  margin: 46px 0 16px;
}

.soundbar20-article h3 {
  font-size: 22px;
  color: #111;
  margin: 30px 0 10px;
}

.soundbar20-article p,
.soundbar20-article li {
  font-size: 16px;
}

.soundbar20-article a {
  color: #d71920;
  text-decoration: none;
  font-weight: 600;
}

.soundbar20-article a:hover {
  text-decoration: underline;
}

.sb20-hero {
  background: linear-gradient(135deg, #f6f6f6 0%, #ffffff 48%, #f2f2f2 100%);
  border: 1px solid #e8e8e8;
  border-radius: 22px;
  padding: 34px;
  margin-bottom: 34px;
}

.sb20-kicker {
  color: #d71920;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.sb20-intro {
  max-width: 850px;
  margin: 0 auto;
  text-align: center;
  font-size: 17px;
  color: #444;
}

.sb20-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 34px 0;
}

.sb20-card {
  background: #fff;
  border: 1px solid #e7e7e7;
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.04);
}

.sb20-card strong {
  display: block;
  font-size: 18px;
  color: #111;
  margin-bottom: 8px;
}

.sb20-answer {
  background: #111;
  color: #fff;
  border-radius: 20px;
  padding: 28px;
  margin: 34px 0;
}

.sb20-answer h2 {
  color: #fff;
  margin-top: 0;
}

.sb20-answer p {
  color: #f2f2f2;
}

.sb20-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  overflow: hidden;
  border-radius: 16px;
}

.sb20-table th {
  background: #111;
  color: #fff;
  padding: 15px;
  text-align: left;
  font-size: 15px;
}

.sb20-table td {
  border: 1px solid #e5e5e5;
  padding: 15px;
  vertical-align: top;
  font-size: 15px;
}

.sb20-table tr:nth-child(even) td {
  background: #fafafa;
}

.sb20-highlight {
  border-left: 5px solid #d71920;
  background: #fff5f5;
  padding: 20px 22px;
  margin: 28px 0;
  border-radius: 0 16px 16px 0;
}

.sb20-product-box {
  background: #f7f7f7;
  border-radius: 22px;
  padding: 28px;
  margin: 34px 0;
}

.sb20-link-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.sb20-link-grid a {
  display: block;
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: 14px;
  padding: 15px;
}

.sb20-cta {
  background: linear-gradient(135deg, #1b1b1b, #3b3b3b);
  color: #fff;
  border-radius: 24px;
  padding: 34px;
  margin: 46px 0;
  text-align: center;
}

.sb20-cta h2 {
  color: #fff;
  margin-top: 0;
}

.sb20-cta p {
  color: #f3f3f3;
}

.sb20-cta a {
  display: inline-block;
  margin-top: 12px;
  background: #d71920;
  color: #fff;
  padding: 13px 26px;
  border-radius: 999px;
}

.sb20-faq {
  border-top: 1px solid #e5e5e5;
  padding-top: 18px;
}

@media (max-width: 768px) {
  .soundbar20-article {
    padding: 22px 14px;
  }

  .soundbar20-article h1 {
    font-size: 30px;
  }

  .soundbar20-article h2 {
    font-size: 24px;
  }

  .sb20-hero {
    padding: 24px 18px;
  }

  .sb20-summary,
  .sb20-link-grid {
    grid-template-columns: 1fr;
  }

  .sb20-table,
  .sb20-table tbody,
  .sb20-table tr,
  .sb20-table td,
  .sb20-table th {
    display: block;
    width: 100%;
  }

  .sb20-table th {
    display: none;
  }

  .sb20-table td {
    border-bottom: 0;
  }
}