/* ===================================================
   arc-detail.css - 资讯详情页文章式排版
   =================================================== */

:root {
    --arc-primary: #c62828;
    --arc-primary-light: #ef5350;
    --arc-text: #1a1a1a;
    --arc-text-secondary: #555;
    --arc-text-muted: #999;
    --arc-card-bg: #ffffff;
    --arc-border: #eee;
    --arc-radius: 12px;
    --arc-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
}

/* ========== 顶部 Banner ========== */
.article-banner {
    width: 100%;
    height: 380px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}
.article-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.02) 0%, rgba(0,0,0,0.3) 100%);
}
@media (max-width: 768px) { .article-banner { height: 220px; } }

/* ========== 面包屑 ========== */
.detail-breadcrumb-wrap {
    max-width: 1140px;
    margin: 0 auto;
    padding: 16px 20px 0;
}
.detail-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--arc-text-muted);
    background: transparent;
}
.detail-breadcrumb a { color: var(--arc-text-secondary); text-decoration: none; transition: color 0.2s; }
.detail-breadcrumb a:hover { color: var(--arc-primary); }
.detail-breadcrumb .sep { color: #d1d5db; font-size: 11px; }
.detail-breadcrumb .current { color: var(--arc-text); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 300px; }

/* ========== 主容器 ========== */
.detail-section {
    max-width: 1140px;
    margin: 24px auto 50px;
    padding: 0 20px;
}

/* ========== 文章卡片 ========== */
.arc-card {
    background: var(--arc-card-bg);
    border-radius: var(--arc-radius);
    box-shadow: var(--arc-shadow);
    overflow: hidden;
    border: 1px solid #f0f1f3;
}

/* ---------- 卡片顶部：左图 + 右信息 分栏 ---------- */
.arc-top-row {
    display: flex;
    gap: 0;
    align-items: stretch;
}

/* ---------- 左侧图片 ---------- */
.arc-image-wrap {
    flex: 0 0 420px;
    width: 420px;
    min-height: 100%;
    overflow: hidden;
    background: #f3f4f6;
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid #f0f1f3;
}
.arc-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}
.arc-top-row:hover .arc-image-wrap img {
    transform: scale(1.04);
}
/* 无图占位 */
.arc-image-placeholder {
    width: 100%;
    height: 100%;
    min-height: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #ccc;
    background: linear-gradient(135deg, #f8f9fc 0%, #e9ecef 100%);
}
.arc-image-placeholder i { font-size: 56px; margin-bottom: 8px; }
.arc-image-placeholder span { font-size: 13px; color: #aaa; }

/* ---------- 右侧头部信息 ---------- */
.arc-header-right {
    flex: 1;
    padding: 32px 40px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

/* 标题 */
.arc-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--arc-text);
    line-height: 1.5;
    margin: 0;
    word-break: break-all;
    letter-spacing: 0.5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 元信息行：发布人 · 发布时间 */
.arc-meta {
    display: flex;
    align-items: center;
    gap: 28px;
    padding-bottom: 0;
    border-bottom: none;
    flex-wrap: wrap;
}
.arc-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--arc-text-muted);
}
.arc-meta-item i { font-size: 15px; color: #bbb; }
.arc-meta-item .meta-label { color: #aaa; }
.arc-meta-item .meta-value {
    color: var(--arc-text-secondary);
    font-weight: 500;
}

/* ---------- 简介区 ---------- */
.arc-summary {
    margin: 0;
    padding: 16px 20px;
    background: #fef9f5;
    border-left: 4px solid var(--arc-primary);
    border-radius: 0 8px 8px 0;
    color: #5d4037;
    font-size: 14px;
    line-height: 1.8;
}
.arc-summary i {
    color: #ccc;
    margin-right: 6px;
    font-size: 12px;
}

/* ---------- 正文内容 ---------- */
.arc-body {
    padding: 40px 44px 44px;
}
.arc-content p,
.arc-content div {
    margin: 0 !important;
    padding: 0 !important;
}
.arc-content p:empty,
.arc-content div:empty {
    display: none;
}
.arc-content br + br {
    display: none;
}
.arc-content img {
    max-width: 100%;
    height: auto;
}

/* ========== 响应式 ========== */
@media (max-width: 992px) {
    .arc-image-wrap { flex: 0 0 320px; width: 320px; }
    .arc-header-right { padding: 24px 28px; gap: 12px; }
    .arc-title { font-size: 20px; }
    .arc-summary { font-size: 13px; padding: 14px 16px; }
    .arc-body { padding: 30px 30px 34px; }
}

@media (max-width: 768px) {
    .detail-section { margin-top: 12px; margin-bottom: 30px; }

    /* 上下堆叠 */
    .arc-top-row {
        flex-direction: column;
    }
    .arc-image-wrap {
        flex: 0 0 auto;
        width: 100%;
        max-height: 320px;
        border-right: none;
        border-bottom: 1px solid #f0f1f3;
    }
    .arc-image-wrap img { max-height: 320px; object-fit: cover; }
    .arc-image-placeholder { min-height: 200px; }

    .arc-header-right { padding: 22px 20px; gap: 10px; }
    .arc-title { font-size: 19px; }
    .arc-meta { gap: 16px; }
    .arc-meta-item { font-size: 12px; }

    .arc-summary { font-size: 14px; }
    .arc-body { padding: 24px 20px 28px; }
}

@media (max-width: 480px) {
    .arc-image-wrap { max-height: 220px; }
    .arc-image-wrap img { max-height: 220px; }
    .arc-image-placeholder { min-height: 150px; }

    .arc-header-right { padding: 18px 16px; gap: 8px; }
    .arc-title { font-size: 17px; }
    .arc-meta { gap: 10px; }

    .arc-summary { padding: 12px 14px; font-size: 13px; }
    .arc-body { padding: 18px 16px 22px; }
}