/**
 * 应用场景页面 - 基础结构样式
 * 供 cmp、module、hardware、dmp、icmp 等子目录使用
 * 不含 sim 主题变量，各目录通过 *-scenario.css 定义专属主题
 */

/* ========== 默认主题变量（各 *-scenario.css 可覆盖） ========== */
:root {
    --sim-primary: #3b82f6;
    --sim-primary-dark: #2563eb;
    --sim-accent: #60a5fa;
    --sim-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

/* ========== Hero 大图区域 ========== */
.sim-page-hero {
    position: relative;
    min-height: 420px;
    display: flex;
    align-items: flex-end;
    padding: 0;
    overflow: hidden;
    padding-top: 100px;
}

.sim-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.sim-hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 40%, rgba(0,0,0,0.1) 100%);
}

.sim-hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 60px 20px 50px;
}

.sim-hero-content .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.sim-page-title {
    font-size: 2.75rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.75rem;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
    letter-spacing: 0.02em;
}

.sim-page-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 1.5rem;
    max-width: 640px;
    line-height: 1.6;
}

.sim-breadcrumb {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}

.sim-breadcrumb a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
}

.sim-breadcrumb a:hover {
    color: #fff;
    text-decoration: underline;
}

/* ========== 索引页布局 ========== */
.sim-scenarios {
    max-width: 1200px;
    margin: 0 auto;
}

.sim-intro {
    text-align: center;
    margin-bottom: 2rem;
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
}

.sim-category {
    margin-bottom: 2rem;
}

.sim-category h3 {
    font-size: 1rem;
    color: #475569;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sim-category h3 i {
    font-size: 0.9rem;
}

.sim-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem;
}

@media (max-width: 1200px) {
    .sim-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .sim-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.sim-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    text-decoration: none;
    color: #334155;
    font-size: 0.9rem;
    transition: all 0.25s ease;
    background: #fff;
    border: 1px solid #e2e8f0;
}

.sim-item i {
    width: 1.25rem;
    text-align: center;
    color: #94a3b8;
    flex-shrink: 0;
}

.sim-item span {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sim-item small {
    color: #94a3b8;
    font-size: 0.75rem;
    flex-shrink: 0;
}

/* ========== 文章内容区 ========== */
.sim-knowledge-article {
    padding: 4rem 0 5rem;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.sim-article-content {
    max-width: 900px;
    margin: 0 auto;
    background: #fff;
    border-radius: 16px;
    padding: 3.5rem 4rem;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
    border: 1px solid rgba(0,0,0,0.04);
}

.sim-article-content h2 {
    color: var(--sim-primary-dark, #1e293b);
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 3px solid var(--sim-primary, #3b82f6);
}

.sim-article-content h2:first-child {
    margin-top: 0;
}

.sim-article-content p {
    color: #475569;
    margin-bottom: 1.25rem;
    line-height: 1.85;
    font-size: 1rem;
}

.sim-article-content strong {
    color: var(--sim-primary-dark, #334155);
}

/* ========== 能力卡片网格 ========== */
.sim-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 2rem 0;
}

.sim-feature-card {
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.25s ease;
}

.sim-feature-card:hover {
    border-color: var(--sim-primary, #3b82f6);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.sim-feature-icon {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sim-gradient, linear-gradient(135deg, #3b82f6, #2563eb));
    color: #fff;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.sim-feature-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--sim-primary-dark, #1e293b);
    margin-bottom: 0.5rem;
}

.sim-feature-card p {
    font-size: 0.9rem;
    margin-bottom: 0;
    line-height: 1.6;
}

/* ========== 优势列表 ========== */
.sim-advantage-list {
    list-style: none;
    padding: 0;
    margin: 1.25rem 0;
}

.sim-advantage-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: #475569;
    line-height: 1.6;
}

.sim-advantage-list li i {
    color: var(--sim-primary, #3b82f6);
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 0.2em;
}

/* ========== 应用场景列表 ========== */
.sim-scenario-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 1.25rem 0;
}

.sim-scenario-item {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    padding: 1rem 1.25rem;
    background: #f8fafc;
    border-radius: 10px;
    border-left: 4px solid var(--sim-primary, #3b82f6);
}

.sim-scenario-label {
    font-weight: 600;
    color: var(--sim-primary-dark, #334155);
    min-width: 140px;
}

.sim-scenario-desc {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.5;
}

.sim-article-divider {
    margin: 2.5rem 0;
    border: none;
    border-top: 1px solid #e2e8f0;
}

/* ========== 相关链接 ========== */
.sim-related-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.sim-related-links a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: #f8fafc;
    border-radius: 10px;
    text-decoration: none;
    color: #334155;
    font-weight: 500;
    transition: all 0.25s ease;
    border-left: 4px solid var(--sim-primary, #3b82f6);
}

.sim-related-links a:hover {
    background: #f1f5f9;
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.sim-related-links a i {
    color: var(--sim-primary, #3b82f6);
    font-size: 1.1rem;
}

/* ========== CTA 区块 ========== */
.sim-scenario-page .cta {
    background: var(--sim-gradient, var(--gradient-primary));
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .sim-page-hero {
        min-height: 320px;
    }
    
    .sim-page-title {
        font-size: 2rem;
    }
    
    .sim-page-subtitle {
        font-size: 1rem;
    }
    
    .sim-hero-content {
        padding: 40px 16px 35px;
    }
    
    .sim-article-content {
        padding: 2rem 1.5rem;
        margin: 0 16px;
    }
    
    .sim-article-content h2 {
        font-size: 1.3rem;
    }
    
    .sim-feature-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .sim-scenario-item {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .sim-scenario-label {
        min-width: auto;
    }
}