* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    color: #fff;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background: #000;
}
.wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

header {
    color: #fff;
    padding: 1rem;
}

header nav {
        font-size: 1.4rem;
}

header nav ul {
    display: flex;
    list-style: none;
    gap: 1rem;
}

header nav ul li a {
    text-decoration: none;
    position: relative;
}

header nav ul li a::after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #0ff;
    transition: 0.3s ease;
    transform: translateX(-50%);
}

header nav ul li a:hover::after {
    width: 100%;
}

header h1 img {
    vertical-align: middle;
    margin-bottom: 8px;
}

.oshirase {
  background-color: #222;
    padding: 2rem;
    text-align: center;
}

.oshirase a.oshirase-link {
    position: relative;
    color: #0ff;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.oshirase a.oshirase-link::after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: #0ff;
    transform: translateX(-50%);
    transition: width 0.35s ease;
}

.oshirase a.oshirase-link:hover::after {
    width: 100%;
}

.oshirase a.oshirase-link:hover {
    color: #fff;
    text-shadow: 0 0 8px #0ff, 0 0 16px #0ff;
}

.item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
}

.sestumei {
    background-color: #000;
}

.sestumei p {
    padding-bottom: 15px;
}

.tokuten-inner {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.tokuten-text {
    flex: 1;
}

.tokuten-image {
    flex: 1;
}

.tokuten-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

.tokuten-text ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-left: 0;
}

.tokuten-text li {
    margin-bottom: 0.5rem;
}

.box {
    background: #fff;
    flex: 1;
    padding: 1rem;
    text-align: center;
    color: #000;
    border-radius: 10px;
}

.box h3 {
    font-size: 1.5em;
    line-height: 1.1;
    color: #000;
}

.toreka, .tokuten {
    background: #111;
}

footer {
    background: #222;
    color: #fff;
    text-align: center;
    padding: 1rem;
}

/* Text */
.text-lg {
    font-size: 1.5em;
}

.grey {
    color:#009999;
}

/* レスポンシブ対応（スマホ用） */
@media (max-width: 768px) {
    header nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }

    .item {
        flex-direction: column;
    }

    .tokuten-inner {
        flex-direction: column;
        gap: 1rem;
    }
}