@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700;900&display=swap');

:root {
    --primary: #3B7DFF;
    --primary-dark: #2B5FC7;
    --accent: #FF9500;
    --bg: #F8FAFF;
    --text: #1A1A2E;
    --text-secondary: #6B7280;
    --shadow-lg: 0 12px 48px rgba(59, 125, 255, 0.12);
    --radius: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(248, 250, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(59, 125, 255, 0.08);
    padding: 16px 0;
}

.nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav-links a:hover { color: var(--primary); }

/* Main */
main { flex: 1; }

/* Page Title */
.page-title {
    font-size: 2rem;
    font-weight: 900;
    margin: 48px 0 32px;
    text-align: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

/* Hero / Product Card */
.hero {
    padding: 60px 0;
    background: linear-gradient(180deg, #EBF1FF 0%, var(--bg) 100%);
    overflow: hidden;
    border-radius: var(--radius);
    margin-bottom: 40px;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-text { flex: 1; }

.hero-text .app-label {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--primary);
    margin-bottom: 12px;
    line-height: 1.3;
}

.hero-text h2 {
    font-size: 2.2rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 20px;
}

.hero-text h2 .highlight {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.9;
}

.hero-image { flex: 0 0 320px; }
.hero-image a { display: block; }

.hero-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    animation: float 4s ease-in-out infinite;
    transition: transform 0.3s ease;
}

.hero-image a:hover img { transform: scale(1.02); }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Notice */
.notice {
    color: var(--text-secondary);
    font-size: 1rem;
    text-align: center;
    padding: 20px 0 60px;
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

/* Responsive */
@media (max-width: 768px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
        gap: 32px;
    }

    .hero-image {
        flex: 0 0 auto;
        max-width: 280px;
    }

    .hero-text .app-label { font-size: 1.6rem; }
    .hero-text h2 { font-size: 1.6rem; }
    .hero-buttons { justify-content: center; }

    .page-title {
        font-size: 1.5rem;
        margin: 32px 0 24px;
    }

    .nav-links { gap: 16px; }
}