/* 紹介特典ページ */
.referral-container {
    max-width: 600px !important;
    margin: 0 auto !important;
}
.ref-btn {
    max-width: 500px !important;
}
.ref-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    background: 
#f8a035;
    color: #fff !important;
    text-decoration: none !important;
    padding: 15px 20px;
    margin-bottom: 12px;
    border-radius: 10px;
    border-bottom: 4px solid rgba(0,0,0,0.2);
    transition: transform 0.2s;
}
.ref-btn:hover {
    transform: translateY(-2px);
}
.ref-btn img {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    background: #fff;
    padding: 3px;
    object-fit: contain;
}
.ref-btn div {
    flex: 1;
}
.ref-btn strong {
    display: block;
    font-size: 16px;
}
.ref-btn span {
    font-size: 13px;
    opacity: 0.9;
}
.ref-btn.tg {
    background: 
#0088cc;
}
.ref-btn.x {
    background: #000;
}