/* ======================================== Section Common Styles ======================================== */
.section-header { margin-bottom: 45px; text-align: center; }
.section-badge { align-items: center; background: rgba(54, 105, 239, 0.1); border-radius: 20px; color: var(--brand-blue); display: inline-flex; font-size: 13px; font-weight: 500; gap: 8px; margin-bottom: 10px; padding: 8px 16px; }
.section-title { color: var(--brand-black); font-size: clamp(28px, 4vw, 36px); font-weight: 700; margin-bottom: 8px; }
.section-subtitle { color: var(--brand-blue); font-size: 16px; font-weight: 500; }
/*********************************************产品详情*********************************************/
/* ========================================
         Breadcrumb Section - 白底样式
         ======================================== */
.breadcrumb-section { background: var(--brand-white); border-bottom: 1px solid var(--brand-gray3); padding: 90px 0 15px; }
.breadcrumb { align-items: center; color: var(--brand-gray1); display: flex; font-size: 14px; gap: 12px; padding: 0 20px; }
.breadcrumb a { align-items: center; color: var(--brand-gray1); display: flex; gap: 12px; transition: all var(--transition-fast); }
.breadcrumb a:hover { color: var(--brand-blue); }
.breadcrumb a::after { border-right: 1px solid var(--brand-gray1); border-top: 1px solid var(--brand-gray1); content: ""; height: 6px; transform: rotate(45deg); width: 6px; }
.breadcrumb-item.active { color: var(--brand-black); font-weight: 500; }
/* ========================================
  Product Hero Section
  ======================================== */
.product-hero { background: var(--brand-white); padding: 60px 0; }
.product-hero-container { align-items: start; display: grid; gap: 40px; grid-template-columns: 1fr 1fr; }
/* Product Gallery */
.product-image-gallery { position: sticky; top: 100px; }
.gallery-main { align-items: center; aspect-ratio: 1; background: var(--brand-gray2); border-radius: 24px; display: flex; justify-content: center; margin-bottom: 20px; overflow: hidden; position: relative; }
.gallery-main img { height: 100%; object-fit: contain; transition: transform var(--transition-slow); width: 100%; }
.gallery-main:hover img { transform: scale(1.05); }
.gallery-main span { border-radius: 20px; bottom: 0px; color: var(--brand-gray1); font-size: 13px; padding: 8px 16px; position: absolute; right: 0px; }
.gallery-thumbnails { display: flex; gap: 12px; }
.thumbnail { background: var(--brand-gray2); border: 2px solid transparent; border-radius: 12px; cursor: pointer; height: 80px; overflow: hidden; transition: all var(--transition-fast); width: 80px; }
.thumbnail img { height: 100%; object-fit: contain; width: 100%; }
.thumbnail.active { border-color: var(--brand-blue); }
.thumbnail:hover { border-color: var(--brand-blue-light); }
/* Product Info */
.product-info { padding-top: 20px; }
.product-title { color: var(--brand-black); font-size: clamp(28px, 4vw, 40px); font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
.product-subtitle { color: var(--brand-gray1); font-size: 16px; line-height: 1.7; margin-bottom: 15px; }
.product-price { color: var(--brand-blue); font-size: 36px; font-weight: 700; margin-bottom: 20px; }
.product-specs { background: var(--brand-gray2); border-radius: 16px; margin-bottom: 32px; padding: 24px; }
.spec-item { border-bottom: 1px solid var(--brand-gray3); display: flex; justify-content: space-between; padding: 12px 0; }
.spec-item:last-child { border-bottom: none; }
.spec-label { color: var(--brand-gray1); font-size: 14px; }
.spec-value { color: var(--brand-black); font-size: 14px; font-weight: 500; text-align: right; }
.btn2 { align-items: center; border-radius: 28px; cursor: pointer; display: inline-flex; font-size: 16px; font-weight: 500; gap: 8px; padding: 14px 28px; transition: all var(--transition-normal); }
.btn2-primary { background: var(--brand-blue); border: none; color: var(--brand-white); margin-right: 20px; }
.btn2-primary:hover { box-shadow: 0 10px 30px rgba(54, 105, 239, 0.4); transform: scale(1.05); }
.btn2-outline { background: transparent; border: 1px solid var(--brand-gray3); color: var(--brand-black); }
.btn2-outline:hover { border-color: var(--brand-blue); color: var(--brand-blue); }
/* ========================================
  Product Details Section
  ======================================== */
.product-details { background: var(--brand-gray2); padding: 80px 0; }
.section-badge { align-items: center; background: rgba(54, 105, 239, 0.1); border-radius: 20px; color: var(--brand-blue); display: inline-flex; font-size: 13px; font-weight: 500; gap: 8px; margin-bottom: 20px; padding: 8px 16px; }
.section-title { color: var(--brand-black); font-size: clamp(28px, 4vw, 42px); font-weight: 700; margin-bottom: 8px; }
.section-subtitle { color: var(--brand-blue); font-size: 16px; font-weight: 500; }
.detail-content { background: var(--brand-white); border-radius: 24px; box-shadow: var(--shadow-lg); margin: 0 auto; max-width: 900px; padding: 48px; }
.detail-content h3 { border-bottom: 2px solid var(--brand-gray2); color: var(--brand-black); font-size: 24px; font-weight: 700; margin: 40px 0 20px; padding-bottom: 12px; }
.detail-content h3:first-child { margin-top: 0; }
.detail-content p { color: var(--brand-gray1); font-size: 15px; line-height: 1.8; margin-bottom: 16px; }
.detail-content ul { list-style: none; margin-bottom: 24px; }
.detail-content ul li { color: var(--brand-gray1); font-size: 15px; line-height: 1.8; margin-bottom: 12px; padding-left: 24px; position: relative; }
.detail-content ul li::before { background: var(--brand-blue); border-radius: 50%; content: ""; height: 8px; left: 0; position: absolute; top: 10px; width: 8px; }
.detail-content ul li strong { color: var(--brand-black); font-weight: 600; }
/* Tech Features Grid */
.tech-features { display: grid; gap: 24px; grid-template-columns: repeat(3, 1fr); margin: 32px 0; }
.tech-card { background: var(--brand-gray2); border-radius: 16px; padding: 32px; text-align: center; transition: all var(--transition-slow); }
.tech-card:hover { background: var(--brand-white); box-shadow: var(--shadow-xl); transform: translateY(-8px); }
.tech-icon { align-items: center; background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-light)); border-radius: 16px; color: var(--brand-white); display: flex; font-size: 28px; height: 64px; justify-content: center; margin: 0 auto 20px; width: 64px; }
.tech-card h4 { color: var(--brand-black); font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.tech-card p { font-size: 14px; line-height: 1.6; margin-bottom: 0; }
/* Comparison Section */
.image-comparison { display: grid; gap: 24px; grid-template-columns: 1fr 1fr; margin: 32px 0; }
.comparison-item { background: var(--brand-gray2); border-radius: 16px; padding: 32px; text-align: center; transition: all var(--transition-slow); }
.comparison-item:first-child { background: linear-gradient(135deg, rgba(54, 105, 239, 0.1), rgba(54, 105, 239, 0.05)); border: 2px solid rgba(54, 105, 239, 0.2); }
.comparison-item:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.comparison-image { align-items: center; background: var(--brand-white); border-radius: 50%; box-shadow: var(--shadow-md); color: var(--brand-blue); display: flex; font-size: 32px; height: 80px; justify-content: center; margin: 0 auto 20px; width: 80px; }
.comparison-item:first-child .comparison-image { background: var(--brand-blue); color: var(--brand-white); }
.comparison-label { color: var(--brand-black); font-size: 18px; font-weight: 600; margin-bottom: 16px; }
.comparison-item p { font-size: 14px; margin-bottom: 8px; text-align: left; }
/* ========================================
  Modal Styles
  ======================================== */
.purchase-modal { align-items: center; backdrop-filter: blur(4px); background: rgba(0, 0, 0, 0.5); display: none; inset: 0; justify-content: center; padding: 20px; position: fixed; z-index: 2000; }
.purchase-modal.active { display: flex; }
.modal-content { animation: modalSlideIn 0.3s ease; background: var(--brand-white); border-radius: 24px; box-shadow: var(--shadow-xl); max-width: 500px; overflow: hidden; width: 100%; }
@keyframes modalSlideIn {
    from { opacity: 0; transform: translateY(-20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-header { align-items: center; border-bottom: 1px solid var(--brand-gray2); display: flex; justify-content: space-between; padding: 24px; }
.modal-header h3 { color: var(--brand-black); font-size: 20px; font-weight: 600; }
.modal-close { align-items: center; border-radius: 50%; color: var(--brand-gray1); cursor: pointer; display: flex; font-size: 24px; height: 32px; justify-content: center; line-height: 1; transition: all var(--transition-fast); width: 32px; }
.modal-close:hover { background: var(--brand-gray2); color: var(--brand-black); }
.modal-body { padding: 24px; }
.platform-options { display: flex; flex-direction: column; gap: 12px; }
.platform-option { align-items: center; background: var(--brand-gray2); border: 2px solid transparent; border-radius: 16px; display: flex; padding: 20px; transition: all var(--transition-fast); }
.platform-option:hover { background: rgba(54, 105, 239, 0.05); border-color: var(--brand-blue); }
.platform-info h4 { color: var(--brand-black); font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.platform-info p { color: var(--brand-gray1); font-size: 13px; }
.modal-footer { padding: 0 24px 24px; }
.btn-cancel { background: var(--brand-gray2); border: none; border-radius: 12px; color: var(--brand-gray1); cursor: pointer; font-size: 15px; font-weight: 500; padding: 14px; transition: all var(--transition-fast); width: 100%; }
.btn-cancel:hover { background: var(--brand-gray3); color: var(--brand-black); }
/* ======================================== 产品详细 Responsive Design ======================================== */
@media (max-width: 1024px) {
    .product-hero-container { gap: 20px; grid-template-columns: 1fr; }
    .product-image-gallery { margin: 0 auto; max-width: 600px; position: relative; top: 0; }
    .tech-features { grid-template-columns: 1fr; }
    .image-comparison { grid-template-columns: 1fr; }
    .breadcrumb-section {padding: 80px 0 15px}
}
@media (max-width: 640px) {
    .gallery-thumbnails { justify-content: center; }
    .thumbnail { height: 60px; width: 60px; }
    .product-actions { display: grid;gap: 25px;grid-template-columns: repeat(2, 1fr); justify-content: center;place-items: center; }
    .btn2 { width: 150px; }
    .detail-content { padding: 24px; }
    .tech-card { padding: 24px; }
    .comparison-item { padding: 24px; }
    .breadcrumb-section {padding: 80px 0 15px}
    .product-hero {padding: 10px 0;}
    .product-details {padding: 20px 0;}
    .section-header {margin-bottom: 20px;}
}
/* ========================================
          Related Cases Section
          ======================================== */
.related-cases-section { background: var(--brand-gray2); padding: 0 0 80px 0; }
.related-cases-header { margin-bottom: 48px; text-align: center; }
.related-cases-title { color: var(--brand-black); font-size: clamp(28px, 4vw, 36px); font-weight: 700; margin-bottom: 12px; }
.related-cases-subtitle { color: var(--brand-gray1); font-size: 16px; }
.related-cases-grid { display: grid; gap: 24px; grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px) {
    .related-cases-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .related-cases-grid { grid-template-columns: 1fr; }
}
/* Case Card Styles */
.case-card { background: var(--brand-white); border-radius: 20px; box-shadow: var(--shadow-md); overflow: hidden; transition: all var(--transition-slow); }
.case-card:hover { box-shadow: var(--shadow-xl); transform: translateY(-4px); }
.case-image { aspect-ratio: 1; background: linear-gradient(135deg, #F0F4FF, #E8EEFF); overflow: hidden; position: relative; }
.case-image img { height: 100%; left: 0; object-fit: cover; position: absolute; top: 0; transition: all var(--transition-slow); width: 100%; }
.case-image .img-default { opacity: 1; z-index: 1; }
.case-image .img-hover { opacity: 0; z-index: 2; }
.case-image.show-after .img-default { opacity: 0; }
.case-image.show-after .img-hover { opacity: 1; }
.image-tabs { background: var(--brand-gray2); border-top: 1px solid var(--brand-gray3); display: flex; gap: 0; width: 100%; z-index: 10; }
.image-tab { background: transparent; border: none; color: var(--brand-gray1); cursor: pointer; flex: 1; font-size: 13px; font-weight: 500; padding: 10px 8px; text-align: center; transition: all var(--transition-fast); }
.image-tab:first-child { border-right: 1px solid var(--brand-gray3); }
.image-tab:hover { background: rgba(54, 105, 239, 0.05); color: var(--brand-blue); }
.image-tab.active { background: var(--brand-white); color: var(--brand-blue); font-weight: 600; }
.case-info { padding: 20px; }
.case-title { color: var(--brand-black); font-size: 16px; font-weight: 700; line-height: 1.4; margin-bottom: 10px; }
.case-content { -webkit-box-orient: vertical; color: var(--brand-gray1); display: -webkit-box; font-size: 13px; -webkit-line-clamp: 3; line-height: 1.6; margin-bottom: 12px; overflow: hidden; }
.case-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.case-tag { align-items: center; background: rgba(54, 105, 239, 0.1); border: 1px solid transparent; border-radius: 14px; color: var(--brand-blue); display: inline-flex; font-size: 11px; font-weight: 500; padding: 5px 10px; transition: all var(--transition-fast); }
.case-tag:hover { background: var(--brand-blue); box-shadow: var(--shadow-sm); color: var(--brand-white); transform: translateY(-2px); }
.case-meta { align-items: center; border-top: 1px solid var(--brand-gray3); color: var(--brand-gray1); display: flex; font-size: 12px; justify-content: space-between; padding-top: 12px; }
.case-user { color: var(--brand-blue); font-weight: 500; }
.arrow-tag { align-items: center; display: inline-flex; gap: 4px; padding: 5px 10px; }
.arrow-tag svg { transition: transform 0.3s ease; }
.arrow-tag:hover svg { transform: translateX(4px); }
.view-all-cases { margin-top: 40px; text-align: center; }
.view-all-cases .btn { align-items: center; background: var(--brand-white); border: 1px solid var(--brand-gray3); border-radius: 28px; color: var(--brand-blue); display: inline-flex; font-size: 15px; font-weight: 500; gap: 8px; padding: 14px 28px; transition: all var(--transition-normal); }
.view-all-cases .btn:hover { background: var(--brand-blue); border-color: var(--brand-blue); box-shadow: var(--shadow-md); color: var(--brand-white); transform: scale(1.05); }