.header-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid #ddd;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    z-index: 9999;
}
.header {
    width: 100%;
    padding: 5px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: "Segoe UI", sans-serif !important;
    color: #333;
    box-sizing: border-box;
}
.logo img {
    padding-top: 5px;
    height: 45px;
    width: 120px;
}
.nav {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 14px;
}
.nav a {
    text-decoration: none;
    color: #444;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 400;
    transition: color 0.2s ease;
    font-family: "Segoe UI", sans-serif;
}
.nav a:hover {
    color: 
#0077cc;
}
.nav svg {
    width: 18px;
    height: 18px;
    stroke: #444;
    stroke-width: 1.8;
    fill: none;
}
.user-email {
  display: flex;
  align-items: center;
  font-size: 13px;
  gap: 6px;
  color: #666;
  text-decoration: none;
}
.user-email:hover {
  color: 
#0077cc;
}
.corporation-id {
    text-align: center;
    font-size: 13px;
    color: #555;
    font-family: "Segoe UI", sans-serif;
    margin: 80px auto 10px;
}
/* 本文がヘッダー下に隠れないように */
body {
    padding-top: 72px;
}