/* ===== 产品页专用样式 ===== */

/* Banner 区域 */
.page-banner {
    position: relative;
    padding: 160px 40px 80px;
    text-align: center;
    overflow: hidden;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.banner-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 80%, rgba(0, 212, 255, 0.12) 0%, transparent 65%);
}

.banner-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}

.banner-container {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.banner-title {
    font-size: 3rem;
    font-weight: 900;
    margin: 16px 0 20px;
}

.banner-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto 24px;
}

/* 面包屑 */
.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); transition: var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--text-muted); }

/* ===== 产品筛选 ===== */
.products-filter-section {
    padding: 28px 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filter-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 30px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    cursor: pointer;
    transition: var(--transition);
}
.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.filter-btn.active {
    background: var(--gradient-1);
    border-color: transparent;
    color: #000;
    font-weight: 600;
}

/* ===== 产品列表网格 ===== */
.products-list-section {
    padding: 70px 0;
    background: var(--bg-primary);
}

.products-full-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

/* 产品卡片（列表页） */
.product-card-full {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
}
.product-card-full:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}

.card-image-full {
    height: 220px;
    position: relative;
    overflow: hidden;
}
.card-image-full .img-placeholder {
    width: 100%;
    height: 100%;
}

.card-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 4px 12px;
    background: var(--gradient-1);
    color: #000;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
}

.card-body-full {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-meta {
    margin-bottom: 10px;
}
.card-category {
    font-size: 0.78rem;
    color: var(--primary);
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 12px;
    padding: 3px 10px;
}

.card-title-full {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
}

.card-desc-full {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 18px;
    flex: 1;
}

.card-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.spec-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 10px 12px;
    background: rgba(0, 212, 255, 0.04);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 8px;
}
.spec-label {
    font-size: 0.72rem;
    color: var(--text-muted);
}
.spec-value {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--primary);
}

.card-link {
    display: inline-block;
    margin-top: 6px;
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    transition: var(--transition);
}
.product-card-full:hover .card-link {
    letter-spacing: 1px;
}

/* hidden class */
.hidden { display: none !important; }

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
    .products-full-grid { grid-template-columns: repeat(2, 1fr); }
    .banner-title { font-size: 2.4rem; }
}

@media (max-width: 768px) {
    .page-banner { padding: 120px 20px 60px; }
    .banner-title { font-size: 1.9rem; }
    .products-full-grid { grid-template-columns: 1fr; }
    .card-specs { grid-template-columns: repeat(2, 1fr); }
}