:root {
    --main-blue: #004ea2;
    --accent-red: #e60012;
    --ease-out-back: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: "Helvetica Neue", Arial, sans-serif;
    background-color: #fff;
    overflow-x: hidden;
    color: #333;
}

.only-pc {
    display: block;
}

.only-500sp {
    display: none;
}

/* ヘッダー */
header {
    position: fixed; 
    top: 0; 
    width: 100%;
    height: 90px;
    display: flex; 
    align-items: center; 
    justify-content: space-between;
    padding: 2.2%; 
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px); 
    z-index: 1000;
}

.header-logo { 
    max-width: 170px; 
    font-weight: 900; 
    color: var(--main-blue); 
    text-decoration: none; 
}

.header-logo img { 
    width: 100%; 
}

.header-btn { 
    background: var(--main-blue); 
    color: #fff; 
    padding: 12px 30px; 
    border-radius: 50px; 
    text-decoration: none; 
    font-weight: bold; 
    transition: 0.3s; 
}

.header-btn:hover { 
    background: var(--accent-red); 
    transform: scale(1.05); 
}

/* 背景ボケ */
.bg-blur-circle { 
    position: fixed;
    border-radius: 50%; 
    filter: blur(80px); 
    z-index: -1; 
    opacity: 0.15; 
    pointer-events: none; 
}

.blur-1 { 
    width: 600px; 
    height: 600px; 
    background: var(--main-blue); 
    top: -200px; 
    left: -200px; 
}

.blur-2 { 
    width: 400px;
    height: 400px; 
    background: var(--accent-red); 
    bottom: -100px; 
    right: -100px; 
}

/* 共通アニメーション */
.js-target { 
    opacity: 0; 
    transition: all 1.2s var(--ease-out-back); 
}

.is-active.js-target { 
    opacity: 1 !important; 
    transform: translate(0, 0) scale(1) !important; 
}

/* ヒーロー */
.hero { 
    height: 100vh; 
    position: relative; 
    display: flex; 
    align-items: center; 
    padding: 0 8%; 
    overflow: hidden; 
}

.hero-content { 
    position: relative; 
    z-index: 20; 
    transform: scale(0.8); 
}

.main-copy { 
    font-size: clamp(2.5rem, 7vw, 5rem); 
    line-height: 1.1;
    font-weight: 900; 
    color: var(--main-blue); 
}

.tagline { 
    color: var(--accent-red); 
    font-weight: bold; 
    letter-spacing: 0.3em; 
    margin-bottom: 15px; 
}

.sub-copy { 
    font-size: 2rem; 
    margin-top: 20px; 
    font-weight: bold; 
    color: #555; 
}

.pop-circle { 
    position: absolute; 
    border-radius: 50%; 
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15); 
    transform: scale(0); 
}

.pop-circle img { 
    width: 100%; 
    height: 100%; 
    object-fit: cover; 
}

.pc-1 { width: 280px; height: 280px; top: 12%; right: 18%; transition-delay: 0.2s; }
.pc-2 { width: 160px; height: 160px; top: 48%; right: 42%; transition-delay: 0.4s; }
.pc-3 { width: 200px; height: 200px; bottom: 8%; left: 32%; transition-delay: 0.6s; }

.pc-large { width: 600px; height: 600px; bottom: -80px; right: -80px; transition-delay: 0.8s; z-index: 5; }

/* サービス紹介（軌道円） */
.service-section { 
    background-color: #f8faff;
    padding: 150px 5%; 
    position: relative; 
    overflow: hidden; 
}
.orbit-line { 
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgb(0 78 163 / 10%);
    border-radius: 50%;
    pointer-events: none;
}

.ring-lg { width: 900px; height: 900px; transition-delay: 0.1s; }
.ring-md { width: 650px; height: 650px; transition-delay: 0.3s; }
.ring-sm { width: 400px; height: 400px; transition-delay: 0.5s; }

.service-container { 
    max-width: 1280px;
    margin: 0 auto; 
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    gap: 70px; 
    position: relative; 
    z-index: 2; 
}

.service-visuals { 
    flex: 1; 
    display: flex; 
    flex-wrap: wrap; 
    justify-content: center; 
    gap: 20px; 
    max-width: 500px; 
}

.service-circle { 
    border-radius: 50%; 
    overflow: hidden; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.3); 
    transform: scale(0.5) translate(var(--mx), var(--my)); 
}

.service-circle img { 
    width: 100%; 
    height: 100%;
    object-fit: cover; 
    display: block; 
}

.sc-1 { width: 240px; height: 240px; --mx: -100px; --my: -50px; transition-delay: 0.4s; position: relative; }
.sc-2 { width: 190px; height: 190px; --mx: 80px; --my: 100px; transition-delay: 0.6s; position: relative; }
.sc-3 { width: 220px; height: 220px; --mx: -50px; --my: 120px; transition-delay: 0.8s; position: relative; }

.sc-1 p, .sc-2 p, .sc-3 p{ 
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    text-align: center;
    font-weight: bold;
    width: 100%; 
    font-size: 1.2rem;
    background: #004ea39e;
    padding: 10px 5px;} 

.service-info { 
    flex: 1; 
    text-align: left; 
    transform: translateX(50px); 
}

.service-info h2 { 
    font-size: 4rem; 
    color: var(--main-blue); 
    font-weight: 900; 
    margin-bottom: 35px; 
    line-height: 1.2; 
}

.service-desc p { 
    font-size: 2rem; 
    color: #555; 
    margin-bottom: 10px; 
}

.service-desc .maru {     
    font-size: 3.5rem;
    font-weight: bold;
    color: #1e1e1e;
    display: flex;
    align-items: center;
    justify-content: left;
    margin-top: 30px;
}

.service-desc .maru img {     
    max-width: 110px;
    width: 100%;
}

.ema {
    position: absolute;
    bottom: 0;
    right: 0%;
    transform: translate(-50%, 3%);
    max-width: 400px;
}

.ema img {
    width: 100%;
}

/* ネットワーク */
.network-section { 
    padding: 150px 0; 
    background: var(--main-blue); 
    color: #fff;
    position: relative; 
    overflow: hidden; 
    text-align: center; 
}

.network-content { 
    position: relative; 
    z-index: 5; 
    max-width: 900px; 
    margin: 0 auto; 
    transform: translateY(40px); 
}

.network-title { 
    font-size: clamp(2.2rem, 5vw, 3.5rem); 
    margin-bottom: 30px; 
    font-weight: 900; 
}

.network-desc { 
    font-size: 1.3rem; 
    opacity: 0.9; 
    line-height: 2; 
}

.net-circle { 
    position: absolute; 
    border-radius: 50%; 
    background: rgba(255,255,255,0.1); 
    border: 1px solid rgba(255,255,255,0.3); 
    transform: scale(0); 
}

.nc-1 { 
    width: 400px; 
    height: 400px; 
    top: -100px;
    left: -100px; 
    transition-delay: 0.2s; 
}

.nc-2 { 
    width: 200px; 
    height: 200px; 
    bottom: 50px; 
    right: 10%; 
    transition-delay: 0.4s; 
}

.btn-impact { 
    display: inline-block;
    margin-top: 40px;
    padding: 30px 60px;
    background: #fff;
    color: var(--main-blue);
    border-radius: 100px;
    text-decoration: none;
    font-weight: 900;
    transition: 0.3s;
    font-size: 1.2rem;
}

.btn-impact:hover { transform: scale(1.1); background: var(--accent-red); color: #fff; }

/* フッター */
footer { 
    background: #f8faff; 
    padding: 60px 5% 30px; 
    border-top: 1px solid #eee; 
}

.footer-inner { 
    max-width: 1200px; 
    margin: 0 auto; 
    display: flex; 
    justify-content: space-between; 
    align-items: flex-end; 
    flex-wrap: wrap; 
}

.footer-logo { 
    font-size: 22px; 
    font-weight: 900; 
    color: #555555; 
    text-decoration: none; 
}

.footer-text { 
    font-size: 14px; 
    color: #888; 
    margin-top: 10px; 
}

.copyright { 
    width: 100%; 
    text-align: center; 
    margin-top: 40px;
    padding-top: 20px; 
    border-top: 1px solid #eee; 
    font-size: 12px; 
    color: #aaa; 
}

@media (max-width: 768px) {
    .hero { 
        align-items: flex-start; 
        padding-top: 120px; 
    }

    .pc-1 { 
        width: 150px; 
        height: 150px; 
        left: 5%; 
        bottom: 20%; 
        top: auto; 
    }

    .pc-large { 
        width: 300px;
        height: 300px; 
        bottom: -40px; 
        right: -40px; 
    }

    .service-container { 
        flex-direction: column; 
        text-align: center; 
    }

    .service-info { 
        text-align: center; 
        order: 1;
    }

    .service-visuals {
        order: 2; 
    }

    .footer-inner { 
        flex-direction: column; 
        align-items: center; 
        text-align: center; 
    }

    .network-section {
        padding: 225px 0;
    }

    .only-pc {
        display: none;
    }

}

@media (max-width: 500px) {
    .only-500sp {
        display: block;
    }

    .sub-copy {
        font-size: 1.6rem;
    }

    .service-info h2 {
        font-size: 2.4rem;
    }

    .header-logo {
        max-width: 120px;
    }

    .service-desc p {
        font-size: 1.6rem;
    }

    .service-desc .maru {
        font-size: 2.3rem;
    }

    .network-title { 
        font-size: 1.8rem;
    }

    .network-section {
        padding: 200px 10px;
    }

    .ema {
        bottom: 11%;
        right: 55px;
        transform: translate(10%, 50%);
    }

    .network-desc {
        text-align: left;
    }

    .pc-3 { 
        display: none; 
    }

    .pc-1 {
        bottom: 12%;
    }

    .service-desc .maru img {
        max-width: 70px;
    }

}