/* Product Introduction Page Styles */

/* Product Hero Section */
.product-hero {
    background: linear-gradient(135deg, var(--deep-space-blue) 0%, #0d2b5a 100%);
    padding: var(--spacing-xl) 0;
    padding-top: calc(70px + var(--spacing-xl)); /* 添加导航栏高度 + 原有间距 */
    text-align: center;
    position: relative;
    overflow: hidden;
}

.product-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 240, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(58, 12, 163, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.product-title {
    font-size: 3rem;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--fluorescent-cyan), var(--dark-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-subtitle {
    color: var(--silver-gray);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-subtitle {
    color: var(--silver-gray);
    font-size: 1.15rem;
    line-height: 1.7;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    opacity: 0.95;
    letter-spacing: 0.3px;
    padding: 0 var(--spacing-sm);
}

/* Product Features Section - Unique Styles */
.product-features-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    text-align: center;
    color: var(--white);
    margin-bottom: 1rem;
    position: relative;
}

.product-features-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--fluorescent-cyan), var(--dark-purple));
    border-radius: 2px;
}

.product-features-subtitle {
    color: var(--silver-gray);
    font-size: 1.15rem;
    line-height: 1.7;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    opacity: 0.95;
    letter-spacing: 0.3px;
    padding: 0 var(--spacing-sm);
}

.value-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.value-badge {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all 0.3s ease;
    cursor: pointer;
}

.value-badge:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-cyan);
}

.value-badge[data-value="universal"] {
    color: var(--fluorescent-cyan);
    border-color: var(--fluorescent-cyan);
}

.value-badge[data-value="zero-code"] {
    color: var(--dark-purple);
    border-color: var(--dark-purple);
}

.value-badge[data-value="minimal-code"] {
    color: var(--orange-accent);
    border-color: var(--orange-accent);
}

.value-badge i {
    font-size: 1.2rem;
}

/* Capabilities Matrix */
.capabilities-matrix {
    padding: var(--spacing-xl) 0;
    background: var(--deep-space-blue);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.capability-card {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.capability-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glow-cyan);
    border-color: var(--fluorescent-cyan);
}

.capability-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--fluorescent-cyan), var(--dark-purple));
}

.capability-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.capability-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    position: relative;
}

.capability-card[data-capability="smmf"] .capability-icon {
    background: rgba(0, 240, 255, 0.1);
    color: var(--fluorescent-cyan);
}

.capability-card[data-capability="text2sql"] .capability-icon {
    background: rgba(58, 12, 163, 0.1);
    color: var(--dark-purple);
}

.capability-card[data-capability="rag"] .capability-icon {
    background: rgba(255, 107, 53, 0.1);
    color: var(--orange-accent);
}

.capability-card[data-capability="multiagents"] .capability-icon {
    background: rgba(78, 205, 196, 0.1);
    color: var(--green-accent);
}

.capability-header h3 {
    color: var(--white);
    margin-bottom: var(--spacing-xs);
}

.capability-subtitle {
    color: var(--silver-gray);
    font-size: 0.9rem;
}

.capability-content h4 {
    color: var(--fluorescent-cyan);
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

.feature-highlights ul {
    list-style: none;
    padding-left: 0;
}

.feature-highlights li {
    color: var(--silver-gray);
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-sm);
    position: relative;
}

.feature-highlights li::before {
    content: '•';
    color: var(--fluorescent-cyan);
    position: absolute;
    left: 0;
}

.tech-breakthrough p {
    color: var(--silver-gray);
    font-style: italic;
}

.value-associations {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.value-tags {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.value-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.value-tag.universal {
    background: rgba(0, 240, 255, 0.1);
    color: var(--fluorescent-cyan);
    border: 1px solid var(--fluorescent-cyan);
}

.value-tag.zero-code {
    background: rgba(58, 12, 163, 0.1);
    color: var(--dark-purple);
    border: 1px solid var(--dark-purple);
}

.value-tag.minimal-code {
    background: rgba(255, 107, 53, 0.1);
    color: var(--orange-accent);
    border: 1px solid var(--orange-accent);
}

.value-tag:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.value-tag::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-5px);
    background: rgba(10, 25, 47, 0.95);
    color: var(--silver-gray);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
    border: 1px solid currentColor;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.value-tag:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-10px);
}

/* Technical Architecture */
.technical-architecture {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--deep-space-blue) 0%, #0d2b5a 100%);
}

/* Interactive Architecture Diagram */
.architecture-container {
    position: relative;
    background: linear-gradient(135deg, rgba(10, 25, 47, 0.95) 0%, rgba(15, 35, 65, 0.9) 100%);
    border-radius: var(--border-radius-lg);
    border: 2px solid rgba(0, 240, 255, 0.3);
    margin-top: var(--spacing-lg);
    overflow: hidden;
    min-height: 700px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.architecture-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 100;
    display: flex;
    gap: 12px;
    background: rgba(0, 0, 0, 0.4);
    padding: 8px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.control-btn {
    width: 44px;
    height: 44px;
    background: rgba(0, 240, 255, 0.15);
    border: 2px solid rgba(0, 240, 255, 0.4);
    border-radius: 10px;
    color: var(--color-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 16px;
}

.control-btn:hover {
    background: rgba(0, 240, 255, 0.25);
    border-color: var(--color-primary);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 240, 255, 0.3);
}

.control-btn:active {
    transform: translateY(-1px) scale(0.98);
}

.mermaid-container {
    width: 100%;
    height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    position: relative;
}

.mermaid-container svg {
    max-width: 100%;
    max-height: 100%;
    background: transparent;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
    cursor: grab;
}

.mermaid-container svg:active {
    cursor: grabbing;
}

.error-message {
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    font-size: 16px;
    padding: 40px;
}

/* 工具提示样式 */
.architecture-tooltip {
    position: absolute;
    width: 200px;
    min-height: 150px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(0, 240, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    padding: var(--spacing-sm);
    display: none;
    z-index: 100;
    pointer-events: none;
}

.tooltip-content {
    color: var(--deep-space-blue);
}

.tooltip-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--dark-purple);
}

.tooltip-description {
    font-size: 0.85rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.tooltip-metrics {
    font-size: 0.8rem;
    color: var(--fluorescent-cyan);
    font-weight: 500;
    background: rgba(0, 240, 255, 0.1);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
}

/* 粒子背景 */
.particles-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* Mermaid图表样式覆盖 */
.mermaid-container .node rect,
.mermaid-container .node circle,
.mermaid-container .node polygon {
    transition: all 0.3s ease;
}

.mermaid-container .node:hover rect,
.mermaid-container .node:hover circle,
.mermaid-container .node:hover polygon {
    filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.6));
}

.mermaid-container .node {
    cursor: pointer;
}

/* 优化子图对齐 */
.mermaid-container g.cluster rect {
    rx: 8px;
    ry: 8px;
}

/* 确保所有层级宽度一致 */
.mermaid-container g.cluster {
    min-width: 800px;
}

/* 节点间距优化 */
.mermaid-container .node {
    margin: 0 10px;
}

/* 层级标题样式 */
.mermaid-container .cluster-label text {
    font-weight: bold;
    font-size: 14px;
}

/* 高亮效果 */
.highlight-node {
    filter: drop-shadow(0 0 12px rgba(0, 240, 255, 0.8)) !important;
}

.highlight-related {
    filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.6)) !important;
}

.layer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.layer-header h3 {
    color: var(--white);
    margin: 0;
}

.value-support {
    display: flex;
    gap: var(--spacing-xs);
}

.value-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.value-icon.universal {
    background: rgba(0, 240, 255, 0.1);
    color: var(--fluorescent-cyan);
    border: 1px solid var(--fluorescent-cyan);
}

.value-icon.zero-code {
    background: rgba(58, 12, 163, 0.1);
    color: var(--dark-purple);
    border: 1px solid var(--dark-purple);
}

.value-icon.minimal-code {
    background: rgba(255, 107, 53, 0.1);
    color: var(--orange-accent);
    border: 1px solid var(--orange-accent);
}

.value-icon.all-values {
    background: linear-gradient(135deg, var(--fluorescent-cyan), var(--dark-purple), var(--orange-accent));
    color: var(--white);
}

.value-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.value-icon::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-5px);
    background: rgba(10, 25, 47, 0.95);
    color: var(--silver-gray);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.7rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.value-icon:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-10px);
}

.layer-description {
    color: var(--silver-gray);
    margin: 0;
    font-size: 0.9rem;
}

/* Product Features */
.product-features {
    padding: var(--spacing-xl) 0;
    background: var(--deep-space-blue);
}

.product-role-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.product-filter-btn {
    background: rgba(255, 255, 255, 0.05);
    color: var(--silver-gray);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-filter-btn.active,
.product-filter-btn:hover {
    background: var(--fluorescent-cyan);
    color: var(--deep-space-blue);
    border-color: var(--fluorescent-cyan);
}

.value-filter {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.filter-label {
    color: var(--silver-gray);
    font-weight: 500;
}

.value-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-md);
    transition: all 0.3s ease;
}

.value-checkbox:hover {
    background: rgba(255, 255, 255, 0.05);
}

.value-checkbox input[type="checkbox"] {
    display: none;
}

.value-checkbox input[type="checkbox"]:checked + .value-icon {
    transform: scale(1.1);
    box-shadow: 0 0 10px currentColor;
}

.product-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.product-feature-item {
    background: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease;
}

.product-feature-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-cyan);
    border-color: var(--fluorescent-cyan);
}

.product-feature-item h4 {
    color: var(--white);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.product-feature-item p {
    color: var(--silver-gray);
    margin: 0;
    font-size: 0.9rem;
}

/* Tablet Responsive Design - 平板端优化 */
@media (max-width: 1024px) and (min-width: 769px) {
    .product-title {
        font-size: 2.7rem;
    }

    .product-subtitle {
        font-size: 1.1rem;
    }

    .product-features-title {
        font-size: 2.2rem;
    }

    .section-subtitle,
    .product-features-subtitle {
        font-size: 1.05rem;
        max-width: 85%;
    }

    .value-badge {
        font-size: 0.85rem;
        padding: 0.4rem 0.9rem;
    }

    .feature-card h4 {
        font-size: 1.1rem;
    }

    .feature-card p {
        font-size: 0.95rem;
    }

    .tooltip-title {
        font-size: 0.95rem;
    }

    .tooltip-description {
        font-size: 0.8rem;
    }

    .tooltip-metrics {
        font-size: 0.75rem;
    }

    /* 布局网格优化 */
    .capabilities-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: var(--spacing-md);
    }

    .product-features-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }

    /* 间距优化 */
    .product-hero {
        padding: var(--spacing-lg) 0;
        padding-top: calc(70px + var(--spacing-lg)); /* 平板端：导航栏高度 + 原有间距 */
    }

    .value-badges {
        gap: var(--spacing-sm);
    }
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
    .product-title {
        font-size: 2.2rem;
    }

    .product-subtitle {
        font-size: 1rem;
    }

    .product-features-title {
        font-size: 1.8rem;
    }

    .section-subtitle,
    .product-features-subtitle {
        font-size: 1rem;
        max-width: 90%;
        padding: 0 var(--spacing-xs);
        line-height: 1.6;
    }

    .value-badge {
        font-size: 0.8rem;
        padding: 0.35rem 0.8rem;
    }

    .feature-card h4 {
        font-size: 1rem;
    }

    .feature-card p {
        font-size: 0.9rem;
    }

    .tooltip-title {
        font-size: 0.9rem;
    }

    .tooltip-description {
        font-size: 0.8rem;
    }

    .tooltip-metrics {
        font-size: 0.75rem;
    }
    
    /* 布局优化 */
    .value-badges {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .capabilities-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .product-features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* 间距优化 */
    .product-hero {
        padding: var(--spacing-md) 0;
        padding-top: calc(70px + var(--spacing-md)); /* 移动端：导航栏高度 + 原有间距 */
    }

    .feature-card {
        padding: var(--spacing-md);
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
    
    .capability-card {
        padding: var(--spacing-sm);
    }
    
    .architecture-container {
        min-height: 600px;
    }

    .mermaid-container {
        height: 600px;
        padding: 20px 10px;
    }

    .architecture-controls {
        top: 15px;
        right: 15px;
        gap: 8px;
        padding: 6px;
    }

    .control-btn {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .architecture-tooltip {
        width: 180px;
        min-height: 120px;
    }
    
    .product-role-filter {
        flex-direction: column;
        align-items: center;
    }

    .value-filter {
        flex-direction: column;
        align-items: flex-start;
    }

    .product-features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .product-title {
        font-size: 1.8rem;
    }

    .product-subtitle {
        font-size: 0.95rem;
    }

    .product-features-title {
        font-size: 1.6rem;
    }

    .section-subtitle,
    .product-features-subtitle {
        font-size: 0.95rem;
        max-width: 95%;
    }

    .value-badge {
        font-size: 0.75rem;
        padding: 0.3rem 0.7rem;
    }

    .feature-card h4 {
        font-size: 0.95rem;
    }

    .feature-card p {
        font-size: 0.85rem;
    }

    .tooltip-title {
        font-size: 0.85rem;
    }

    .tooltip-description {
        font-size: 0.75rem;
    }

    .tooltip-metrics {
        font-size: 0.7rem;
    }

    .value-tags {
        flex-direction: column;
    }

    .value-tag {
        width: 100%;
        justify-content: center;
    }

    .architecture-container {
        min-height: 500px;
    }

    .mermaid-container {
        height: 500px;
        padding: 15px 5px;
    }

    .architecture-controls {
        flex-direction: column;
        gap: 6px;
        padding: 4px;
        top: 10px;
        right: 10px;
    }

    .control-btn {
        width: 32px;
        height: 32px;
        font-size: 12px;
    }

    .architecture-tooltip {
        width: 160px;
        min-height: 100px;
        font-size: 0.8rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
        max-width: 95%;
        padding: 0 var(--spacing-xs);
        line-height: 1.5;
    }
}