/**
 * 通信类知识库 - 专属主题样式
 * 适配 support/communication 页面，突出通信技术、网络协议视觉
 * 参考 cmp 样式，使用 sim-page-hero 大图区域
 */

/* ========== 作用域：通信类知识库 ========== */
body.communication-page {
    --comm-primary: #0ea5e9;
    --comm-primary-dark: #0284c7;
    --comm-accent: #38bdf8;
    --comm-overlay: rgba(14, 165, 233, 0.15);
    --comm-border: rgba(14, 165, 233, 0.2);
}

/* ========== Hero 区域 - 通信主题（青蓝科技感） ========== */
body.communication-page .sim-hero-bg::after {
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.88) 0%,
        rgba(14, 165, 233, 0.2) 30%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(0, 0, 0, 0.1) 100%
    );
}

body.communication-page .sim-hero-content::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--comm-primary, #0ea5e9) 20%,
        var(--comm-accent, #38bdf8) 50%,
        var(--comm-primary, #0ea5e9) 80%,
        transparent 100%
    );
    opacity: 0.8;
}

body.communication-page .sim-page-subtitle {
    position: relative;
    padding-left: 1rem;
    border-left: 3px solid rgba(14, 165, 233, 0.8);
}

/* ========== 通信类文章详情页样式 ========== */
body.communication-article .page-hero {
    background: linear-gradient(135deg, #0c4a6e 0%, #0ea5e9 50%, #0284c7 100%);
}

body.communication-article .page-hero::before {
    background: radial-gradient(circle at 30% 70%, rgba(56, 189, 248, 0.2) 0%, transparent 50%);
}

body.communication-article .daxi-relation-box {
    padding: 1.25rem 0;
    margin: 2rem 0;
}

body.communication-article .daxi-relation-box p {
    color: #4a5568;
    margin-bottom: 0;
    line-height: 1.75;
    font-size: 1rem;
}

body.communication-article .daxi-relation-box h3 {
    color: #475569;
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

body.communication-article .daxi-relation-box h3 i {
    color: rgba(14, 165, 233, 0.7);
}

body.communication-article .related-link-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.15);
}