html, body {
  min-width: 1100px;
  background-color: #f0f4f9;
  color: #333;
  line-height: 1.8;
  margin: 0;
}
.container-fixed {
  width: 1100px;
  margin: 0 auto;
  display: flex;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.sidebar {
  width: 260px;
  background-color: #1f4e8c;
  color: #fff;
  padding: 30px 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-550px);
  z-index: 1000;
  height: 100vh;
  height: 100dvh;
  min-height: 100%;
  -webkit-fill-available: 100%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}
@supports (-webkit-touch-callout: none) {
  .sidebar { height: -webkit-fill-available; }
}
.sidebar img {
  width: 180px;
  margin: 0 auto 30px auto;
  display: block;
}
.sidebar nav {
  width: 100%;
  text-align: center;
}
.sidebar .nav-link {
  color: #fff;
  font-weight: 500;
  padding: 8px 0;
}
.sidebar .nav-link:hover { text-decoration: underline; }
.content {
  flex: 1;
  padding: 40px;
  border-left: 1px solid #ccc;
  margin-left: 260px;
  background-color: #fff;
}
.content section { margin-bottom: 60px; }
.content h2 {
  border-left: 6px solid #1f4e8c;
  padding-left: 10px;
  font-size: 1.4rem;
  font-weight: bold;
  margin-bottom: 20px;
}
.header-img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  border: 1px solid #ccc;
  display: block;
  margin-bottom: 40px;
}
.message-box {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}
.message-box .message-img { flex: 0 0 20%; }
.message-box .message-img img {
  width: 100%;
/*  border-radius: 4px; */
/*  border: 1px solid #ccc; */
}
.message-box .message-text { flex: 0 0 80%; }
.creators-box {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}
.creators-box .creators-img { flex: 0 0 60%; }
.creators-box .creators-img img {
  width: 100%;
  border-radius: 4px;
  border: 1px solid #ccc;
}
.creators-box .creators-empty { flex: 0 0 40%; }

#footer {
  text-align: center;
  padding: 20px 0;
  border-top: 1px solid #ccc;
  margin-top: 60px;
}

#footer .footer-text h3 {
  font-size: 0.9rem;
  color: #666;
  margin: 0;
}