.product-introduction { width: min(600px, calc(100% - 32px)); max-height: calc(100dvh - 32px); margin: auto; padding: 0; overflow: auto; border: 1px solid #dbe5f4; border-radius: 20px; background: #fff; color: #14253e; box-shadow: 0 28px 100px #08182c66; }
.product-introduction::backdrop { background: #08182cb8; backdrop-filter: blur(5px); }
html.product-introduction-open { overflow: hidden; }
.product-introduction-top { display: flex; justify-content: space-between; align-items: center; padding: 12px 18px 12px 28px; color: #d9e7ff; background: #122c4e; font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.product-introduction-close { width: 42px; height: 42px; border: 0; border-radius: 50%; color: white; background: #ffffff12; cursor: pointer; font-size: 30px; line-height: 1; }
.product-introduction-content { padding: 32px; background: radial-gradient(ellipse at top right, #eaf2ff, transparent 65%); }
.product-introduction-symbol { display: grid; place-items: center; width: 60px; height: 60px; margin-bottom: 24px; border: 1px solid #cbdcf6; border-radius: 17px; background: #edf4ff; color: #285f9b; }
.product-introduction-symbol svg { width: 31px; height: 31px; }
.product-introduction-badge { display: inline-block; margin: 0 0 14px; padding: 5px 11px; border-radius: 30px; background: #e5efff; color: #24548d; font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.product-introduction h2, .product-introduction-page h1 { margin: 0 0 18px; font-size: clamp(28px, 4vw, 42px); font-weight: 800; line-height: 1.12; letter-spacing: -.035em; overflow-wrap: anywhere; }
.product-introduction-content > p:not(.product-introduction-badge), .product-introduction-page-lead { margin: 0; color: #4a5b71; font-size: 16px; line-height: 1.75; white-space: pre-line; }
.product-introduction-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 28px; }
.product-introduction-primary { display: inline-flex; align-items: center; justify-content: center; gap: 20px; min-height: 48px; padding: 12px 22px; border-radius: 7px; background: #275c9a; color: #fff; font-size: 14px; font-weight: 700; text-decoration: none; }
.product-introduction-primary:hover { background: #194675; color: #fff; }
.product-introduction-later { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 18px; border: 0; border-radius: 7px; background: transparent; color: #42566f; font-size: 14px; font-weight: 600; text-decoration: none; cursor: pointer; }
.product-introduction-later:hover { background: #edf2f8; color: #193959; }
.product-introduction a:focus-visible, .product-introduction button:focus-visible, .product-introduction-page a:focus-visible { outline: 3px solid #4e91e1; outline-offset: 3px; }
.product-introduction-footer { padding: 16px 32px; border-top: 1px solid #e4ebf4; color: #64748b; font-size: 11px; font-weight: 600; }
.product-introduction-fallback { padding: 20px; background: #edf4ff; text-align: center; }
.product-introduction-fallback a { margin-left: 12px; text-decoration: underline; }
.product-introduction-page { min-height: 65vh; padding: 80px 24px; background: linear-gradient(135deg, #eaf1fa, #f8fafc); }
.product-introduction-page-card { max-width: 760px; margin: auto; padding: clamp(24px, 5vw, 56px); border: 1px solid #dce5f0; border-radius: 20px; background: white; box-shadow: 0 16px 48px #1639590b; }
.product-introduction-eyebrow { margin: 0 0 24px; color: #396798; font-size: 11px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.product-introduction-page-message { margin-top: 24px; color: #4a5b71; line-height: 1.8; }
@media (max-width: 480px) { .product-introduction-content { padding: 24px; } .product-introduction-top { padding-left: 24px; } .product-introduction-actions { align-items: stretch; } .product-introduction-primary { flex: 1; } .product-introduction-page { padding: 40px 16px; } }
@media print { .product-introduction { display: none !important; } }