/* ============================================================ */
/* ===== 产品体系架构图（概览） ===== */
/* ============================================================ */
.product-architecture {
    padding: 80px 0 60px;
    background: var(--white);
}
.architecture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.architecture-item {
    background: var(--off-white);
    border-radius: var(--radius);
    padding: 28px 22px 30px;
    text-align: center;
    border: 1px solid rgba(26, 95, 180, 0.04);
    box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.02);
    transition: var(--transition);
}
.architecture-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.08);
}
.architecture-item .arch-icon {
    font-size: 2.4rem;
    color: var(--blue-bright);
    margin-bottom: 12px;
    display: inline-block;
}
.architecture-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}
.architecture-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================================ */
/* ===== 产品体系 — 分类展示 ===== */
/* ============================================================ */
.product-section {
    padding: 80px 0 60px;
    background: var(--light-bg);
}

.product-category {
    margin-bottom: 60px;
}
.product-category:last-child {
    margin-bottom: 0;
}

.product-category .cat-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
    border-bottom: 2px solid rgba(26, 95, 180, 0.06);
    padding-bottom: 14px;
}
.product-category .cat-header .cat-icon {
    font-size: 2rem;
    color: var(--blue-bright);
    width: 48px;
    text-align: center;
}
.product-category .cat-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}
.product-category .cat-header .cat-count {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--white);
    padding: 4px 16px;
    border-radius: 60px;
    font-weight: 500;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.product-item {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px 26px 32px;
    border: 1px solid rgba(26, 95, 180, 0.04);
    box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.02);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.product-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--blue-primary), var(--blue-lighter));
    opacity: 0;
    transition: var(--transition);
}
.product-item:hover::before {
    opacity: 1;
}
.product-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.08);
}
.product-item .product-icon {
    font-size: 1.8rem;
    color: var(--blue-bright);
    margin-bottom: 12px;
    display: inline-block;
    opacity: 0.8;
}
.product-item .product-name {
    font-size: 1.12rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}
.product-item .product-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 14px;
}
.product-item .product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 12px;
    border-top: 1px solid rgba(26, 95, 180, 0.04);
    padding-top: 14px;
    margin-top: 2px;
}
.product-item .product-features span {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--off-white);
    padding: 2px 12px;
    border-radius: 60px;
    font-weight: 500;
}
.product-item .product-tag {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 2px 12px;
    border-radius: 60px;
    background: rgba(43, 123, 230, 0.06);
    color: var(--blue-primary);
    margin-bottom: 10px;
}

/* ============================================================ */
/* ===== 产品特点/优势 ===== */
/* ============================================================ */
.product-features-highlight {
    padding: 80px 0;
    background: var(--white);
}
.features-highlight-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.features-highlight-item {
    text-align: center;
    padding: 36px 28px 32px;
    background: var(--off-white);
    border-radius: var(--radius);
    border: 1px solid rgba(26, 95, 180, 0.04);
    box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.02);
    transition: var(--transition);
}
.features-highlight-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.06);
}
.features-highlight-item .fh-icon {
    font-size: 2.6rem;
    color: var(--blue-bright);
    margin-bottom: 14px;
    display: inline-block;
}
.features-highlight-item h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.features-highlight-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ----- CTA ----- */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(145deg, #06204a 0%, #0a3a7a 40%, #0f4a9a 100%);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section .glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}
.cta-section .glow-orb:nth-child(1) {
    width: 300px;
    height: 300px;
    top: -20%;
    right: -10%;
    background: rgba(43, 123, 230, 0.20);
}
.cta-section .glow-orb:nth-child(2) {
    width: 200px;
    height: 200px;
    bottom: -10%;
    left: -5%;
    background: rgba(91, 154, 255, 0.15);
}
.cta-section .container {
    position: relative;
    z-index: 2;
}
.cta-section h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.4rem, 4.5vw, 3.6rem);
    font-weight: 800;
    margin-bottom: 18px;
}
.cta-section h2 span {
    background: linear-gradient(135deg, #8bb8ff, #c0d8f5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.cta-section p {
    font-size: 1.15rem;
    max-width: 560px;
    margin: 0 auto 36px;
    opacity: 0.85;
    line-height: 1.7;
}
.cta-section .btn-group {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}
.cta-section .btn-white {
    background: #fff;
    color: var(--blue-deep);
    box-shadow: 0 8px 28px -6px rgba(0, 0, 0, 0.25);
}
.cta-section .btn-white:hover {
    background: var(--blue-lighter);
    color: #fff;
    box-shadow: 0 16px 48px -8px rgba(43, 123, 230, 0.40);
}
.cta-section .btn-outline-white {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.30);
    box-shadow: none;
}
.cta-section .btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: #fff;
    color: #fff;
    transform: translateY(-3px);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .architecture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-highlight-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .architecture-grid {
        grid-template-columns: 1fr 1fr;
    }
    .product-grid {
        grid-template-columns: 1fr;
    }
    .features-highlight-grid {
        grid-template-columns: 1fr;
    }
    .product-category .cat-header {
        flex-wrap: wrap;
    }
    .product-category .cat-header .cat-count {
        margin-left: 0;
    }
    .section-header {
        margin-bottom: 40px;
    }
}

@media (max-width: 480px) {
    .architecture-grid {
        grid-template-columns: 1fr;
    }
    .product-item {
        padding: 24px 20px 26px;
    }
}