.content-shell { width: min(1080px, calc(100% - 64px)); margin: 0 auto; padding: 32px 0 64px; }
.page-breadcrumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: 11px; color: #8394b2; margin-bottom: 32px; }
.page-breadcrumbs a { color: #4969a7; }
.content-intro { padding: 35px 0 30px; }
.content-intro .eyebrow { color: #708ab9; font-size: 10px; letter-spacing: 2px; }
.content-shell h1 { font-size: 35px; line-height: 1.5; color: #203764; margin: 10px 0 18px; letter-spacing: -.7px; }
.content-lead { color: #667b9f; font-size: 15px; line-height: 1.9; }
.content-panel { border: 1px solid #e0e8f7; border-radius: 17px; padding: 32px; margin-top: 25px; background: #fff; box-shadow: 0 5px 20px #27437105; }
.content-panel h2 { font-size: 19px; line-height: 1.7; color: #2c477b; margin: 27px 0 12px; }
.content-panel h2:first-child { margin-top: 0; }
.content-panel p { color: #687d9f; font-size: 14px; line-height: 2; margin: 0 0 20px; }
.content-panel .button { font-size: 13px; border-radius: 9px; padding: 13px 20px; }
.seo-product { display: grid; grid-template-columns: 330px minmax(0,1fr); gap: 38px; padding: 30px; background: #fff; border: 1px solid #dfe8f8; border-radius: 18px; }
.seo-product-visual .detail-cover { height: 210px; border-radius: 13px; }
.seo-product-visual .brand-product-art { padding: 25px!important; }
.seo-product-visual .brand-art-plan { font-size: 35px!important; }
.seo-product-visual .residential-art .brand-art-plan { font-size: 29px!important; }
.seo-product-visual .brand-product-art img { width: 65px; height: 65px; }
.seo-product-visual>p { text-align: center; font-size: 11px; color: #95a3bb; margin-top: 16px; }
.seo-product-copy .eyebrow { font-size: 11px; color: #8396b6; }
.seo-product-copy h1 { font-size: 29px; margin-top: 8px; margin-bottom: 15px; }
.seo-product-price { color: #2d55ac; font-weight: 650; font-size: 33px; line-height: 1.5; margin: 20px 0 10px; }
.seo-product-price small { font-size: 13px; font-weight: 450; color: #8296ba; margin-left: 6px; }
.seo-specs { margin-top: 22px; }
.seo-specs>div { display: grid; grid-template-columns: 90px 1fr; gap: 16px; padding: 12px 0; border-bottom: 1px solid #e8eef8; font-size: 12px; line-height: 1.8; }
.seo-specs dt { color: #91a0b9; }.seo-specs dd { color: #516b95; margin: 0; }
.seo-purchase { display: flex; gap: 18px; align-items: center; margin-top: 27px; flex-wrap: wrap; }
.seo-purchase .button { padding: 13px 18px; border-radius: 9px; font-size: 13px; }.seo-purchase>a:not(.button) { font-size: 12px; color: #6d84ae; }
.related-links { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 13px; margin: 20px 0; }
.related-links a { display: flex; flex-direction: column; gap: 14px; border: 1px solid #e0e9f9; background: #f8faff; padding: 20px; border-radius: 10px; font-size: 13px; line-height: 1.7; }
.related-links span { color: #4b6eb1; }
.content-more { display: inline-block; font-size: 12px; color: #5277bd; margin-top: 15px; }
.content-footer { width: min(1080px,calc(100% - 64px)); margin: 0 auto; padding: 28px 0 38px; border-top: 1px solid #e1e8f5; color: #8093b5; }
.content-footer>a { font-size: 22px; font-weight: 650; color: #385a9c; }.content-footer nav { display: flex; flex-wrap: wrap; gap: 24px; margin: 20px 0; font-size: 12px; }.content-footer p { font-size: 10px; line-height: 1.9; }
.store-faq { margin-top: 32px; padding: 27px; border: 1px solid #e0e8f7; background: #fff; border-radius: 15px; }
.store-faq>.eyebrow { font-size: 8px; letter-spacing: 1.6px; color: #8c9fbd; }.store-faq h2 { font-size: 21px; color: #294878; margin: 10px 0 23px; }
.faq-list details { padding: 16px 0; border-bottom: 1px solid #e7edf7; }.faq-list details:first-child { padding-top: 0; }.faq-list summary { cursor: pointer; font-size: 13px; color: #405c8d; line-height: 1.8; padding-right: 12px; }.faq-list details p { color: #7488a9; font-size: 12px; line-height: 2; margin: 13px 0 0; }.knowledge-links { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 23px; font-size: 11px; color: #607eb7; }
@media(max-width:850px) { .seo-product { grid-template-columns: 1fr; }.seo-product-visual { max-width: 430px; width: 100%; }.content-shell { width: calc(100% - 40px); }.related-links { grid-template-columns: 1fr; } }
@media(max-width:720px) { .content-shell { width: calc(100% - 32px); padding-top: 23px; }.page-breadcrumbs { font-size: 10px; margin-bottom: 20px; }.content-shell h1 { font-size: 28px; }.content-lead { font-size: 13px; }.content-panel { padding: 23px; border-radius: 13px; }.content-panel h2 { font-size: 17px; }.content-panel p { font-size: 12px; }.seo-product { padding: 21px; gap: 20px; }.seo-product-visual .detail-cover { height: 170px; }.seo-product-visual .residential-art .brand-art-plan { font-size: 25px!important; }.seo-product-visual .brand-product-art img { width: 53px; height: 53px; }.seo-product-copy h1 { font-size: 26px; }.seo-specs>div { grid-template-columns: 75px 1fr; font-size: 11px; }.seo-product-price { font-size: 30px; }.content-footer { width: calc(100% - 32px); }.store-faq { padding: 22px; }.store-faq h2 { font-size: 19px; }.faq-list summary { font-size: 12px; }.faq-list details p { font-size: 11px; }.knowledge-links { font-size: 10px; gap: 15px; } }