/* ============================================================
   行业洞察文章页 — 共用样式
   ============================================================ */
:root {
    --primary-green: #2e7d32;
    --professional-blue: #1976d2;
    --text-color: #2a2a2a;
    --text-muted: #6b7280;
    --bg-soft: #f8fafc;
    --border-soft: #e5e7eb;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
                 "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text-color);
    background: #ffffff;
    line-height: 1.65;
}

/* 简化顶栏 */
.article-topbar {
    background: #ffffff;
    border-bottom: 1px solid var(--border-soft);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background: rgba(255,255,255,0.92);
}
.article-topbar .navbar-brand img {
    height: 36px;
}
.article-topbar .topbar-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    margin-left: 1.5rem;
    transition: color 0.2s ease;
}
.article-topbar .topbar-link:hover {
    color: var(--primary-green);
}
.article-topbar .topbar-link.active {
    color: var(--primary-green);
    font-weight: 600;
}

/* 文章主容器 */
.article-container {
    max-width: 780px;
    margin: 0 auto;
    padding: 2.5rem 1.25rem 4rem;
}

/* 面包屑 */
.breadcrumb-trail {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}
.breadcrumb-trail a {
    color: var(--text-muted);
    text-decoration: none;
}
.breadcrumb-trail a:hover {
    color: var(--primary-green);
}
.breadcrumb-trail .sep {
    margin: 0 0.5rem;
    opacity: 0.5;
}

/* 文章头 */
.article-header {
    margin-bottom: 2rem;
}
.article-category {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 1rem;
}
.article-category.tech     { background: #16a34a; }
.article-category.safety   { background: #f59e0b; color: #1c1917; }
.article-category.compliance { background: #0891b2; }
.article-category.trends   { background: #2563eb; }

.article-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.25;
    color: #111;
    margin: 0 0 1rem;
    letter-spacing: -0.01em;
}
@media (min-width: 768px) {
    .article-title {
        font-size: 2.4rem;
    }
}
.article-meta {
    color: var(--text-muted);
    font-size: 0.92rem;
    margin-bottom: 1.5rem;
}
.article-meta span + span {
    margin-left: 1.25rem;
}
.article-meta i {
    margin-right: 0.35rem;
    opacity: 0.8;
}

.article-cover {
    width: 100%;
    height: auto;
    border-radius: 0.75rem;
    margin: 0 0 2rem;
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
    background: #1f1f1f;
}

/* 正文 */
.article-body {
    font-size: 1.05rem;
    color: #2a2a2a;
}
.article-body .lead {
    font-size: 1.18rem;
    color: #444;
    line-height: 1.7;
    margin: 0 0 2rem;
    padding: 1.1rem 1.25rem;
    border-left: 4px solid var(--primary-green);
    background: var(--bg-soft);
    border-radius: 0 0.5rem 0.5rem 0;
}
.article-body h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #111;
    margin: 2.5rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-green);
    display: inline-block;
}
.article-body h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
    margin: 2rem 0 0.75rem;
}
.article-body p {
    margin: 0 0 1.15rem;
}
.article-body ul,
.article-body ol {
    margin: 0 0 1.25rem;
    padding-left: 1.5rem;
}
.article-body ul li,
.article-body ol li {
    margin-bottom: 0.4rem;
}
.article-body strong {
    color: #111;
    font-weight: 700;
}
.article-body blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.25rem;
    background: #fff7ed;
    border-left: 4px solid #f59e0b;
    border-radius: 0 0.5rem 0.5rem 0;
    color: #78350f;
    font-style: normal;
}
.article-body blockquote p:last-child {
    margin-bottom: 0;
}
.article-body table {
    width: 100%;
    margin: 1.5rem 0;
    border-collapse: collapse;
    font-size: 0.95rem;
}
.article-body table th,
.article-body table td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-soft);
    text-align: left;
}
.article-body table th {
    background: var(--bg-soft);
    font-weight: 700;
    color: #111;
}
.article-body table tr:nth-child(even) td {
    background: #fafafa;
}
.article-body code {
    background: var(--bg-soft);
    padding: 0.15rem 0.4rem;
    border-radius: 0.25rem;
    font-size: 0.92em;
    color: #0c4a6e;
}
.article-body hr {
    margin: 2.5rem 0;
    border: 0;
    border-top: 1px solid var(--border-soft);
}

/* 文末 CTA */
.article-cta {
    margin: 3rem 0 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border: 1px solid #a7f3d0;
    border-radius: 1rem;
    text-align: center;
}
.article-cta h4 {
    color: #064e3b;
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
}
.article-cta p {
    color: #065f46;
    margin: 0 0 1.25rem;
}
.article-cta .btn {
    padding: 0.65rem 1.75rem;
    font-weight: 600;
}

/* 相关阅读 */
.article-related {
    margin: 2.5rem 0 0;
    padding: 1.75rem;
    background: var(--bg-soft);
    border-radius: 0.75rem;
}
.article-related h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #111;
    margin: 0 0 1rem;
}
.article-related ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.article-related li {
    padding: 0.5rem 0;
    border-bottom: 1px dashed var(--border-soft);
}
.article-related li:last-child {
    border-bottom: 0;
}
.article-related a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.2s ease;
}
.article-related a:hover {
    color: var(--primary-green);
    text-decoration: underline;
}
.article-related .arr {
    margin-right: 0.5rem;
    color: var(--primary-green);
}

/* 简化页脚 */
.article-footer {
    background: #1c1c1c;
    color: #d4d4d4;
    padding: 2rem 0;
    text-align: center;
    font-size: 0.875rem;
}
.article-footer a {
    color: #d4d4d4;
    text-decoration: none;
}
.article-footer a:hover {
    color: #fff;
    text-decoration: underline;
}