body {
    margin: 0;
    color: white;
    font-family: sans-serif;
    min-height: 100vh;
    background-color: #02040a;
    background-image: url('assets/bg.png');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.logo {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 14px 22px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(33, 150, 243, 0.4);
    border-radius: 999px;
    box-shadow: 0 0 32px rgba(33, 150, 243, 0.18), 0 16px 30px rgba(0, 0, 0, 0.25);
}

.logo::before {
    content: "SRC";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #ffd600 0%, #ff6f00 100%);
    color: #111;
    font-weight: 800;
    border-radius: 50%;
    box-shadow: 0 8px 16px rgba(255, 214, 0, 0.3);
}

.logo span {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: #ffffff;
}

.logo-fixed {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 10;
}

main {
    padding-top: 0;
}

nav ul li {
    position: relative;
    padding: 8px 14px;
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.03em;
}

nav ul li::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -6px;
    height: 3px;
    background: linear-gradient(90deg, rgba(255, 193, 7, 0.9), rgba(30, 136, 229, 0.9));
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    transform: scaleX(0.6);
}

nav ul li:hover::after {
    opacity: 1;
    transform: scaleX(1);
}

.logo {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 14px 22px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(33, 150, 243, 0.4);
    border-radius: 999px;
    box-shadow: 0 0 32px rgba(33, 150, 243, 0.18), 0 16px 30px rgba(0, 0, 0, 0.35);
}

.logo::before {
    content: "SRC";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #ffd600 0%, #ff6f00 100%);
    color: #111;
    font-weight: 800;
    border-radius: 50%;
    box-shadow: 0 8px 16px rgba(255, 214, 0, 0.3);
}

.logo span {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: #ffffff;
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0 24px;
    overflow: hidden;
    background: transparent;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top, rgba(1, 7, 18, 0.76), transparent 35%), linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 65%);
    pointer-events: none;
}

h1 {
    position: relative;
    z-index: 1;
    font-size: clamp(3rem, 5vw, 5.2rem);
    letter-spacing: 0.16em;
    line-height: 1.02;
    font-weight: 900;
    text-align: center;
    text-transform: uppercase;
    background: linear-gradient(120deg, #ffd300, #ff5b2a, #7cafff);
    -webkit-background-clip: text;
    color: transparent;
    text-shadow: 0 0 30px rgba(0, 0, 0, 0.4), 0 0 40px rgba(255, 180, 0, 0.15);
}


.stats { display: flex; gap: 26px; margin: 40px 0; flex-wrap: wrap; justify-content: center; }
.stat-item {
    position: relative;
    width: 220px;
    padding: 28px 24px;
    border-radius: 26px;
    color: #fffde7;
    text-align: center;
    background: rgba(12, 18, 31, 0.72);
    border: 1px solid rgba(255, 215, 0, 0.24);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    overflow: hidden;
    backdrop-filter: blur(8px);
}
.stat-item::before {
    content: '✦';
    position: absolute;
    top: 14px;
    left: 16px;
    font-size: 1.2rem;
    color: rgba(255, 235, 150, 0.92);
    opacity: 0.9;
}
.stat-item::after {
    content: '';
    position: absolute;
    bottom: -10px;
    right: -10px;
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: inset 0 0 16px rgba(255, 255, 255, 0.08);
}
.stat-item span { display: block; position: relative; font-size: clamp(2.4rem, 4vw, 3.2rem); font-weight: 900; text-shadow: 0 0 18px rgba(255, 215, 102, 0.65); }
.stat-item p { position: relative; margin: 12px 0 0; font-size: 1rem; color: #f8e27f; opacity: 0.96; letter-spacing: 0.04em; }

.info-box {
    position: relative;
    max-width: 860px;
    margin-top: 28px;
    padding: 30px 34px;
    background: rgba(9, 14, 29, 0.82);
    border: 1px solid rgba(255, 215, 0, 0.18);
    border-radius: 26px;
    box-shadow: 0 30px 65px rgba(0, 0, 0, 0.45);
}

.info-box::before {
    content: '注目！';
    position: absolute;
    top: -16px;
    left: 18px;
    padding: 10px 16px;
    font-size: 1.3rem;
    color: #111;
    background: linear-gradient(135deg, #ffe082, #ffb300);
    border-radius: 999px;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.2);
    transform: rotate(-2deg);
}

.info-box h2 {
    margin: 0 0 12px;
    font-size: 2.6rem;
    color: #ffd54f;
}

.info-box p {
    margin: 0;
    line-height: 1.8;
    font-size: 1.45rem;
    color: #f5f5f5;
}

.cta-area {
    margin-top: 28px;
}

.cta-btn {
    display: inline-block;
    background: linear-gradient(135deg, #f44336, #d32f2f);
    color: white;
    border: none;
    padding: 20px 52px;
    font-size: 1.45rem;
    border-radius: 60px;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 16px 32px rgba(212, 47, 47, 0.35);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(217, 64, 77, 0.45);
}

.profit-image-wrap {
    margin-top: 36px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 28px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.24);
    max-width: 1120px;
    width: min(100%, 1120px);
    display: flex;
    justify-content: center;
}

.profit-image-wrap img {
    width: 100%;
    max-width: 1080px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 22px 50px rgba(0, 0, 0, 0.28);
    transform: translateY(1px);
}

.hidden {
    display: none;
}

.bonus { color: #8bc34a; text-align: center; margin-bottom: 10px; }

@media (max-width: 768px) {
    header {
        padding: 16px 20px;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }

    .logo {
        gap: 10px;
        padding: 12px 16px;
    }

    .logo::before {
        width: 50px;
        height: 50px;
    }

    .logo span {
        font-size: 1.55rem;
    }

    .hero {
        padding: 0 16px;
    }

    h1 {
        font-size: clamp(2.4rem, 8vw, 3.2rem);
        letter-spacing: 0.08em;
    }

    h1::after {
        bottom: -28px;
        padding: 5px 14px;
        font-size: 0.8rem;
    }

    .stats {
        gap: 16px;
        margin: 30px 0;
    }

    .stat-item {
        width: calc(50% - 16px);
        padding: 20px 14px;
        border-radius: 22px;
    }

    .logo span {
        font-size: 1.55rem;
    }

    .stat-item span {
        font-size: clamp(2.45rem, 6vw, 3rem);
    }

    .stat-item p {
        font-size: 1rem;
    }

    .info-box {
        margin-top: 18px;
        padding: 20px 22px;
    }

    .cta-area {
        margin-top: 24px;
    }

    .cta-btn {
        width: 100%;
        padding: 18px 22px;
        font-size: 1.25rem;
    }

    .profit-image-wrap {
        margin-top: 28px;
        padding: 16px;
        border-radius: 20px;
    }

    .profit-image-wrap img {
        max-width: 100%;
        border-radius: 16px;
    }
}