/* ==========================================
   详情页专用样式
   ========================================== */

.detail-content {
    position: relative;
    z-index: 10;
    padding-top: 120px;
    min-height: 100vh;
}

.detail-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md) var(--spacing-xl);
}

/* 返回按钮 */
.back-btn {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(0, 229, 255, 0.3);
    color: var(--color-text-secondary);
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-normal);
    margin-bottom: 2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.back-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateX(-5px);
    box-shadow: 0 5px 20px rgba(0, 229, 255, 0.2);
}

/* 详情页标题 */
.detail-header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out;
}

.detail-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.title-main {
    display: block;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.title-sub {
    display: block;
    color: var(--color-text-primary);
    font-size: 0.8em;
    font-weight: 500;
}

.detail-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    font-family: var(--font-en);
    font-style: italic;
    letter-spacing: 0.05em;
}

/* 内容区块 */
.content-section {
    margin-bottom: 8rem;
    /* 重置全局 section 样式带来的巨大内边距 */
    padding: 0 !important;
    min-height: auto !important;
}

.content-card {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 20px;
    padding: 2.5rem;
    margin-bottom: 1.5rem;
    transition: all var(--transition-normal);
    animation: fadeInUp 0.8s ease-out;
}

.content-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 10px 40px rgba(0, 229, 255, 0.2);
    transform: translateY(-5px);
}

.content-text p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
}

.content-text p:last-child {
    margin-bottom: 0;
}

.content-text strong.highlight {
    color: var(--color-primary);
    font-weight: 600;
}

.highlight-box {
    background: rgba(0, 229, 255, 0.05);
    border-left: 4px solid var(--color-primary);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-top: 1.5rem;
}

/* 章节标题 */
.section-heading {
    font-size: 2rem;
    color: var(--color-primary);
    text-align: center;
    margin-top: 1rem;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

/* 数据展示区 */
.data-section {
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 1s ease-out 0.3s backwards;
    /* 重置全局 section 样式带来的巨大内边距 */
    padding: 0 !important;
    min-height: auto !important;
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.data-card {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.data-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-glow-cyan), var(--color-glow-purple));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.data-card:hover {
    transform: translateY(-10px) scale(1.05);
    border-color: var(--color-primary);
    box-shadow: 0 20px 60px rgba(0, 229, 255, 0.3);
}

.data-card:hover::before {
    opacity: 0.1;
}

.data-card.highlight-card {
    border-color: var(--color-accent);
    background: rgba(124, 58, 237, 0.1);
}

.data-card.highlight-card:hover {
    border-color: var(--color-secondary);
    box-shadow: 0 20px 60px rgba(183, 148, 246, 0.4);
}

.data-number {
    font-size: 4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    font-family: var(--font-en);
    position: relative;
    z-index: 1;
    white-space: nowrap;
    overflow: visible;
    min-width: 100%;
}

.data-unit {
    font-size: 2rem;
    margin-left: 0.2rem;
    font-weight: inherit;
    font-family: inherit;
}

.data-label {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

.data-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-family: var(--font-en);
    font-style: italic;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}

/* 研究发现列表 */
.research-list {
    list-style: none;
    padding: 0;
}

.research-item {
    background: rgba(15, 23, 42, 0.4);
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: 8px;
    transition: all var(--transition-normal);
}

.research-item:hover {
    background: rgba(15, 23, 42, 0.6);
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(0, 229, 255, 0.2);
}

.research-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.research-citation {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    font-family: var(--font-en);
    font-style: italic;
    line-height: 1.6;
}

.research-citation strong {
    color: var(--color-text-primary);
}

.research-title .subtitle-en {
    display: inline;
    font-size: inherit;
    font-weight: inherit;
    color: inherit;
    font-family: inherit;
    margin-left: 0.5rem;
    opacity: 1;
}

/* 特征列表 */
.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-item {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(0, 229, 255, 0.15);
    border-radius: 16px;
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
}

.feature-item:hover {
    border-color: var(--color-primary);
    background: rgba(15, 23, 42, 0.6);
    transform: translateX(10px);
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.feature-desc {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* CTA区域 */
.cta-section {
    text-align: center;
    margin: var(--spacing-xl) 0;
    animation: fadeInUp 1s ease-out 0.5s backwards;
}

.cta-btn {
    padding: 1.2rem 3rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border: none;
    border-radius: 40px;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    letter-spacing: 0.1em;
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.cta-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 229, 255, 0.5);
}

.cta-btn:hover::before {
    width: 400px;
    height: 400px;
}

/* 产品展示区 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.product-card-detail {
    background: rgba(10, 15, 30, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.08); /* 极细边框，更显高级 */
    border-radius: 8px; /* 减小圆角，更现代 */
    padding: 1.25rem; /* 紧凑内边距 */
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(20px);
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
}

.product-card-detail:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 229, 255, 0.5);
    box-shadow: 0 20px 40px -12px rgba(0, 229, 255, 0.15);
    background: rgba(15, 23, 42, 0.9);
}

.product-name {
    font-size: 1rem; /* 再次微调字号以适应长标题 */
    line-height: 1.4;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    white-space: nowrap; /* 禁止换行 */
    overflow: hidden;
    text-overflow: ellipsis; /* 省略号 */
    letter-spacing: 0; /* 紧凑字间距 */
}

/* 去掉原来的伪元素渐变，改用纯粹的 hover 边框光效 */
.product-card-detail::before {
    display: none;
}

.product-tagline {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 0.2rem;
    font-weight: 300;
}

/* 英文 tagline 样式微调 */
.product-tagline[style*="font-family: var(--font-en)"] {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
    margin-bottom: 1.5rem;
}

.product-features {
    list-style: none;
    padding: 0;
    margin-bottom: auto; /* 让底部内容对齐 */
    font-size: 0.85rem;
    position: relative;
    z-index: 1;
}

.product-features li {
    padding: 0.4rem 0;
    color: rgba(255,255,255,0.8);
    border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
    /* 移除 display: flex，让文字自然换行 */
    line-height: 1.5;
}

.product-features li strong {
    color: rgba(255, 255, 255, 0.95);
    margin-right: 4px;
    font-weight: 500;
    display: inline-block; /* 保持加粗标签的一体性 */
}

.product-features li::before {
    content: '•';
    color: rgba(255, 255, 255, 0.6);
    margin-right: 0.5rem;
}

/* Coming Soon 遮罩样式 & 状态 */
.product-card-detail.coming-soon {
    pointer-events: none; /* 禁止交互 */
}

.product-card-detail.coming-soon::after {
    content: "COMING SOON";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 8, 16, 0.3); /* 提高透明度，让下层内容隐约可见 */
    backdrop-filter: blur(1px); /* 降低模糊度，保留文字轮廓 */
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-en);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.95);
    z-index: 10;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px; /* 与卡片圆角保持一致 */
}

/* 响应式 - 平板 */
@media (max-width: 1024px) {
    .data-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

/* 响应式 - 手机 */
@media (max-width: 768px) {
    .detail-content {
        padding-top: 100px;
    }
    
    .detail-container {
        padding: 0 var(--spacing-sm) var(--spacing-lg);
    }
    
    .detail-title {
        font-size: 1.8rem;
    }
    
    .detail-subtitle {
        font-size: 1rem;
    }
    
    .content-card {
        padding: var(--spacing-md);
    }
    
    .content-text p {
        font-size: 1.05rem;
        line-height: 1.8;
    }
    
    .data-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .data-number {
        font-size: 3rem;
    }
    
    .data-label {
        font-size: 1.1rem;
    }
    
    .section-heading {
        font-size: 1.5rem;
    }
    
    .cta-btn {
        padding: 1rem 2rem;
        font-size: 1rem;
        width: 100%;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
}