/* ===== アップグレードページ専用スタイル ===== */

/* トップ画像エリアの余白を詰める */
#top {
    height: 500px;
    padding-top: 0;
    margin-bottom: 0;
    overflow: hidden;
}

/* アップグレードプランバナー */
#upgrade_plan_banner {
    background-color: #6B1535;
    width: 100%;
    padding: 14px 0;
    margin: 0 auto 50px;
    text-align: center;
    display: block;
}

#upgrade_plan_banner p {
    font-family: 'Noto Sans JP', "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
    font-size: 34px;
    font-weight: 900;
    color: #FFFFFF;
    letter-spacing: 2px;
    line-height: 1.4;
    margin: 0;
    width: 100%;
    display: block;
}

.banner_gold {
    color: #F0D8A0;
}

/* CTAボタンエリア */
#btn_upgrade_area {
    width: 750px;
    text-align: center;
    margin: 0px auto 60px;
    display: block;
}

.upgrade_btn {
    background-color: #7B1C38;
    color: #F5DFA0;
    font-size: 26px;
    font-weight: bold;
    line-height: 1.5;
    text-decoration: none;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    width: 700px;
    padding: 22px 30px;
    margin: 0 auto;
    border-radius: 60px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.35);
    animation: animate72 1s ease-in infinite;
    transition: opacity 0.2s;
}

.upgrade_btn::before {
    content: "▶";
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    min-width: 52px;
    background: radial-gradient(circle, #FFE082 30%, #C8960C 100%);
    color: #5A2D00;
    font-size: 20px;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.upgrade_btn:hover {
    opacity: 0.9;
}

@keyframes animate72 {
    0%   { transform: rotate(0deg); }
    40%  { transform: rotate(0deg); }
    50%  { transform: rotate(2deg); }
    60%  { transform: rotate(-1deg); }
    70%  { transform: rotate(3deg); }
    80%  { transform: rotate(-2deg); }
    90%  { transform: rotate(0deg); }
    100% { transform: rotate(0deg); }
}

/* ===== スマホ用上書き ===== */
@media screen and (max-width: 640px) {
    #top {
        background-image: url("../images/top_sp.jpg");
        background-size: 900px;
        background-position: center 0px;
        height: 675px;
        padding-top: 0;
        margin-bottom: 0;
        overflow: hidden;
        position: relative;
    }

    #top::after {
        content: '';
        position: absolute;
        bottom: 0;
        right: 0;
        width: 50%;
        height: 60px;
        background: linear-gradient(to bottom right, transparent 20%, rgba(2, 10, 2, 0.95) 80%);
        pointer-events: none;
    }

    #upgrade_plan_banner {
        width: 900px;
        padding: 20px 0;
        margin: 0 auto 60px;
    }

    #upgrade_plan_banner p {
        font-size: 36px;
        letter-spacing: 1px;
    }

    #btn_upgrade_area {
        width: 900px;
    }
}