/* ???Z?b?g???x?[?X */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Helvetica Neue', Arial, 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif; line-height: 1.6; color: #333; background: #f5f3f8; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ?w?b?_?[ */
.site-header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.header-content { display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; flex-wrap: wrap; }
.site-title h1 { font-size: 1.2rem; margin: 0; }
.year-badge { background: #ffd700; color: #6b46c1; padding: 0.2rem 0.8rem; border-radius: 20px; font-size: 1.2rem; font-weight: bold; }
.subtitle { font-size: 0.9rem; opacity: 0.9; margin: 0; }
.year-nav { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.year-link { color: white; text-decoration: none; padding: 0.5rem 1rem; border-radius: 20px; background: rgba(255,255,255,0.2); transition: all 0.3s; font-size: 0.9rem; }
.year-link:hover, .year-link.active { background: rgba(255,255,255,0.3); transform: translateY(-2px); }
.main-nav { display: flex; justify-content: center; gap: 1.5rem; padding: 0.8rem; background: rgba(0,0,0,0.1); flex-wrap: wrap; }
.main-nav a { color: white; text-decoration: none; padding: 0.3rem 0.8rem; border-radius: 15px; transition: background 0.3s; }
.main-nav a:hover, .main-nav a.active { background: rgba(255,255,255,0.2); }

/* ?q?[???[?Z?N?V???? */
.hero { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 6rem 2rem; text-align: center; }
.hero-year { font-size: 5rem; font-weight: bold; margin: 0; text-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.hero-title { font-size: 2.5rem; margin: 1rem 0; font-weight: 300; }
.hero-subtitle { font-size: 1.2rem; margin: 1.5rem 0 2rem; opacity: 0.95; }
.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.cta-button { display: inline-block; padding: 1rem 2.5rem; background: white; color: #6b46c1; text-decoration: none; border-radius: 50px; font-weight: bold; transition: transform 0.3s; box-shadow: 0 4px 15px rgba(0,0,0,0.2); }
.cta-button:hover { transform: scale(1.05); }
.cta-button-outline { display: inline-block; padding: 1rem 2.5rem; background: transparent; border: 2px solid white; color: white; text-decoration: none; border-radius: 50px; font-weight: bold; transition: all 0.3s; }
.cta-button-outline:hover { background: white; color: #6b46c1; }
.cta-button-large { display: inline-block; padding: 1.2rem 3rem; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; text-decoration: none; border-radius: 50px; font-weight: bold; font-size: 1.2rem; transition: transform 0.3s; box-shadow: 0 4px 15px rgba(107, 70, 193, 0.3); }
.cta-button-large:hover { transform: scale(1.05); }

/* ?R???e???c */
.page-content { padding: 3rem 0; }
.section-title { font-size: 2rem; text-align: center; color: #6b46c1; margin: 2rem 0; }
.breadcrumb { padding: 1rem 2rem; font-size: 0.9rem; color: #666; }
.breadcrumb a { color: #6b46c1; text-decoration: none; }

/* ?n?C???C?g */
.highlights { padding: 4rem 0; }
.highlight-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; margin: 2rem 0; }
.highlight-card { background: white; padding: 2rem; border-radius: 1rem; box-shadow: 0 4px 15px rgba(0,0,0,0.1); text-align: center; transition: transform 0.3s; }
.highlight-card:hover { transform: translateY(-5px); }
.highlight-icon { font-size: 3rem; margin-bottom: 1rem; }

/* ?f?fCTA */
.diagnostic-cta { padding: 4rem 0; }
.diagnostic-box { text-align: center; padding: 4rem 2rem; background: linear-gradient(135deg, rgba(107, 70, 193, 0.1) 0%, rgba(232, 121, 249, 0.1) 100%); border-radius: 1.5rem; }
.diagnostic-box h2 { font-size: 2.5rem; margin-bottom: 1rem; color: #6b46c1; }
.diagnostic-box p { font-size: 1.2rem; margin-bottom: 2rem; color: #555; line-height: 1.8; }

/* Final CTA */
.final-cta { text-align: center; padding: 4rem 2rem; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; border-radius: 1.5rem; margin: 4rem 0; }
.final-cta h2 { font-size: 2rem; margin-bottom: 1rem; }
.final-cta p { font-size: 1.2rem; margin-bottom: 2rem; }

/* ???i??? */
.product-detail { background: white; }
.product-hero {
    width: 100vw;
    margin-left: calc(50% - 50vw);
    padding: 0;
    margin-top: 0;
    margin-bottom: 0;
}

.hero-banner {
    width: 100%;
    height: auto;
    display: block;
}



.product-content { display: grid; grid-template-columns: 300px 1fr; gap: 3rem; max-width: 1200px; margin: 3rem auto; padding: 0 2rem; }
.product-sidebar { position: sticky; top: 120px; height: fit-content; }
.product-badge { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 0.5rem 1rem; border-radius: 50px; text-align: center; margin-bottom: 1rem; font-weight: bold; }
.product-image { width: 100%; border-radius: 1rem; box-shadow: 0 4px 15px rgba(0,0,0,0.1); margin-bottom: 1.5rem; }
.buy-button { display: block; text-align: center; padding: 1rem; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; text-decoration: none; border-radius: 50px; font-weight: bold; transition: transform 0.3s; }
.buy-button:hover { transform: scale(1.05); }
.product-main { }
.product-title-en { font-size: 2.5rem; color: #6b46c1; margin-bottom: 0.5rem; }
.product-title-ja { font-size: 1.5rem; color: #999; margin-bottom: 1rem; font-weight: normal; }
.category-tag { background: rgba(107, 70, 193, 0.1); color: #6b46c1; padding: 0.5rem 1rem; border-radius: 20px; font-weight: bold; }
.product-description { margin: 2rem 0; font-size: 1.1rem; line-height: 1.8; }
.product-ingredients, .product-specs, .warning-section { margin: 2rem 0; padding: 1.5rem; background: #f9f7fc; border-radius: 0.5rem; }
.product-ingredients h3, .product-specs h3, .warning-section h3 { color: #6b46c1; margin-bottom: 1rem; }
.product-ingredients ul, .warning-section ul { list-style: none; padding-left: 0; }
.product-ingredients li, .warning-section li { padding: 0.5rem 0; border-bottom: 1px solid #e0e0e0; }
.product-specs table { width: 100%; }
.product-specs th { text-align: left; padding: 0.5rem; background: rgba(107, 70, 193, 0.1); font-weight: bold; }
.product-specs td { padding: 0.5rem; border-bottom: 1px solid #e0e0e0; }
.diagnostic-link { text-align: center; padding: 3rem 2rem; margin: 3rem 2rem; background: linear-gradient(135deg, rgba(107, 70, 193, 0.1) 0%, rgba(232, 121, 249, 0.1) 100%); border-radius: 1rem; }

/* ?t?b?^?[ */
.site-footer { background: #d7d0e5; color: white; padding: 2rem; text-align: center; margin-top: 4rem; }

/* ???X?|???V?u */
@media (max-width: 768px) {
    .hero-year { font-size: 3rem; }
    .hero-title { font-size: 1.8rem; }
    .product-content { grid-template-columns: 1fr; }
    .product-sidebar { position: static; }
    .header-content { flex-direction: column; text-align: flex-start; }
    .year-nav { justify-content: flex-start; }
}

/* ?X?}?z?p?FPC???????????\?? */
@media screen and (max-width: 768px) {
    header, nav, .header, #header {
        display: flex !important;
        flex-wrap: wrap !important;          /* ??????????? */
        justify-content: flex-start !important;  /* ???? */
        width: 100% !important;
        padding: 5px !important;
        overflow: visible !important;        /* ?X?N???[???????? */
    }