body {
  overflow-x: hidden;
  max-width: 100vw;
  box-sizing: border-box;
}

.performance-section {
  position: relative;
  width: 100%;
  max-width: 100vw;
  min-height: 100vh;
  overflow-x: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 0 192px;
  box-sizing: border-box;
}

.performance-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.performance-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.performance-container {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
  box-sizing: border-box;
}

.performance-header {
  text-align: center;
  margin-bottom: 40px;
}

.performance-title {
  font-family: 'Avenir Next W1G', sans-serif;
  font-weight: 700;
  font-size: 48px;
  letter-spacing: 0.63em;
  color: #1c1c1c;
  margin: 0;
  line-height: 1.3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.performance-title-main {
  font-weight: 600;
  font-size: 36px;
  text-align: center;
}

.performance-title-subtitle {
  font-size: 16px;
  letter-spacing: 0.53em;
  display: block;
}

.performance-subtitle {
  font-family: 'Avenir Next W1G', sans-serif;
  font-weight: 700;
  font-size: 36px;
  color: #1c1c1c;
  text-align: left;
  margin: 0 0 30px 0;
  line-height: 1.3;
}

.performance-content {
  display: flex;
  gap: 15px;
  align-items: start;
  max-width: 100%;
}

.performance-image {
  width: 100%;
  max-width: 600px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.performance-photo {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.performance-text {
  max-width: 600px;
  font-family: 'Avenir Next W1G', sans-serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.2;
  color: #1c1c1c;
  box-sizing: border-box;
}

.performance-text strong {
  font-weight: 700;
}

.performance-text ul {
  list-style: none;
  padding: 0;
}

.performance-text ul li {
  padding-left: 15px;
  margin-bottom: 5px;
  position: relative;
}

.performance-text ul li:first-child {
  margin-top: 5px;
  padding-left: 15px;
  margin-bottom: 5px;
  position: relative;
}

.performance-text ul li:before {
  content: '•';
  position: absolute;
  left: 0;
  font-weight: 700;
  font-size: 16px;
}

.performance-text ul li:last-child {
  margin-bottom: 0;
}

@media screen and (max-width: 1024px) {
  .performance-section {
    padding: 60px 0 150px;
  }

  .performance-container {
    padding-left: 30px;
    padding-right: 30px;
  }

  .performance-title {
    font-size: 40px;
  }

  .performance-title-main {
    font-size: 32px;
  }

  .performance-subtitle {
    font-size: 32px;
  }

  .performance-content {
    flex-direction: column;
    gap: 30px;
    align-items: center;
  }

  .performance-image {
    max-width: 500px;
    width: 100%;
  }

  .performance-text {
    max-width: 100%;
    font-size: 15px;
  }
}

@media screen and (max-width: 768px) {
  .performance-section {
    padding: 50px 20px 100px;
  }

  .performance-container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .performance-title {
    font-size: 32px;
    letter-spacing: 0.3em;
  }

  .performance-title-main {
    font-size: 24px;
  }

  .performance-title-subtitle {
    font-size: 13px;
    letter-spacing: 0.25em;
  }

  .performance-subtitle {
    font-size: 28px;
  }

  .performance-image {
    max-width: 400px;
  }

  .performance-text {
    font-size: 14px;
  }
}

@media screen and (max-width: 480px) {
  .performance-section {
    padding: 40px 15px 80px;
  }

  .performance-container {
    padding-left: 15px;
    padding-right: 15px;
  }

  .performance-title {
    font-size: 28px;
    letter-spacing: 0.2em;
  }

  .performance-title-main {
    font-size: 20px;
  }

  .performance-title-subtitle {
    font-size: 12px;
    letter-spacing: 0.15em;
  }

  .performance-subtitle {
    font-size: 20px;
  }

  .performance-image {
    max-width: 320px;
  }

  .performance-text {
    font-size: 13px;
  }
}