/* ========== 1. 新闻页面布局 ========== */
.news-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
    width: 100%;
    max-width: 1400px;
}

.news-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.news-column-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--accent);
}

.news-column-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.news-column-title svg {
    width: 22px;
    height: 22px;
}

.news-column-tabs {
    display: flex;
    gap: 0.25rem;
    background: var(--row-hover);
    padding: 3px;
    border-radius: 8px;
}

.news-column-tab {
    padding: 4px 12px;
    border: none;
    background: transparent;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-family: var(--font-primary);
}

.news-column-tab.news-active {
    background: var(--card-bg);
    color: var(--text-primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* ========== 2. 新闻卡片 ========== */
.news-card {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.news-card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
    background: var(--row-hover);
}

.news-card-body {
    padding: 1rem 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.news-card-tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    width: fit-content;
}

.news-card-tag.finance {
    background: #dbeafe;
    color: #1d4ed8;
}

.news-card-tag.market {
    background: #fef3c7;
    color: #b45309;
}

.news-card-tag.forex {
    background: #d1fae5;
    color: #047857;
}

.news-card-tag.commodity {
    background: #fce7f3;
    color: #be185d;
}

.news-card-tag.world {
    background: #ede9fe;
    color: #6d28d9;
}

.news-card-tag.tech {
    background: #e0f2fe;
    color: #0369a1;
}

.news-card-tag.society {
    background: #fef2f2;
    color: #b91c1c;
}

.news-card-tag.sports {
    background: #f0fdf4;
    color: #15803d;
}

.news-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-summary {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.news-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.news-card-source {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent);
}

.news-card-time {
    font-size: 0.7rem;
    color: var(--text-tertiary);
}

/* ========== 3. 主新闻（大卡） ========== */
.news-card.featured {
    grid-column: 1 / -1;
}

.news-card.featured .news-card-image {
    height: 260px;
}

.news-card.featured .news-card-title {
    font-size: 1.25rem;
    -webkit-line-clamp: 2;
}

.news-card.featured .news-card-summary {
    -webkit-line-clamp: 3;
}

/* ========== 4. 加载 & 空状态 ========== */
.news-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    gap: 1rem;
    color: var(--text-tertiary);
}

.news-loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: news-spin 0.8s linear infinite;
}

@keyframes news-spin {
    to { transform: rotate(360deg); }
}

.news-empty {
    text-align: center;
    padding: 3rem;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* ========== 5. 响应式 ========== */
@media (max-width: 900px) {
    .news-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .news-card-image {
        height: 140px;
    }

    .news-card.featured .news-card-image {
        height: 200px;
    }

    .news-card-body {
        padding: 0.75rem 1rem;
    }

    .news-column-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}