/* articles.html 专属样式 */
/* ================= 核心变量与基础 ================= */
/* ================= 页面特定布局 ================= */
.archive-header {
    margin-top: 40px;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--blue-alpha-20);
    padding-bottom: 2rem;
}

.archive-header-text {
    margin:  0 0 30px;
}

.filter-bar {
    display: flex; gap: 1rem; flex-wrap: wrap;
}

.filter-tags {
    display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 0px;
    color: var(--text-secondary);
    padding: 2px 10px;
    font-family: var(--font-mono); font-size: 1.0rem;
    cursor: pointer; transition: all 0.3s;
}

.filter-btn:hover, .filter-btn.active {
     color: var(--accent-red);
    box-shadow: 0 0 10px var(--accent-alpha-40);
}

.search-input {
    background: transparent; border: none;
    border-bottom: 1px solid var(--blue-alpha-30);
    color: var(--text-bright); font-family: var(--font-mono);
    padding: 5px; width: 200px;
}
.search-input:focus { outline: none; border-color: var(--accent-red); }

.timeline-year {
    font-family: var(--font-mono); font-size: 2rem;
    color: var(--white-alpha-05); margin: 4rem 0 1.5rem;
    position: relative; padding-left: 1rem; font-weight: bold;
}
.timeline-year::before {
    content: '#'; color: var(--accent-red);
    margin-right: 0.5rem; font-size: 1.5rem;
}

/* ================= 档案列表卡片核心样式 ================= */
.archive-list {
    display: flex; flex-direction: column; gap: 1.5rem;
    max-width: 900px; margin: 0 auto;
}

.archive-item {
    display: flex;
    background: var(--surface-blue-60);
    border: 1px solid var(--blue-alpha-20);
    border-left: 3px solid var(--text-secondary);
    border-radius: 4px; overflow: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative; text-decoration: none;
    height: 160px; /* 固定高度 */
}

.archive-item:hover {
    transform: translateX(10px);
    background: var(--surface-blue-90);
    border-color: var(--white-alpha-10);
    box-shadow: 0 5px 20px var(--surface-black-30);
    border-left-color: var(--accent-red) !important;
}

.archive-item:hover .archive-title { color: var(--accent-red) !important; }
.meta-tag { color: var(--accent-red) !important; }

.archive-thumb {
    flex: 0 0 200px; position: relative; overflow: hidden;
    border-right: 1px solid var(--white-alpha-05); height: 100%;
}
.archive-thumb img {
    width: 100%; height: 100%; object-fit: cover;
    filter: grayscale(70%) contrast(1.05);
    transition: filter 0.4s ease;
}
.archive-item:hover .archive-thumb img { filter: grayscale(0%); }

.archive-content {
    flex: 1; padding: 12px 20px;
    display: flex; flex-direction: column; justify-content: space-between;
    overflow: hidden;
}

.archive-meta {
    display: flex; justify-content: space-between;
    font-family: var(--font-mono); font-size: 0.75rem;
    color: var(--text-secondary); opacity: 0.8; margin-bottom: 2px;
    flex-shrink: 0;
}
.meta-tag { letter-spacing: 1px; text-transform: uppercase; font-weight: bold; }
.meta-id { opacity: 0.4; }

.archive-title {
    font-size: 1.4rem; color: var(--text-bright); font-family: var(--font-serif);
    line-height: 1.5; margin: 4px 0; padding-bottom: 2px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; width: 100%;
    flex-shrink: 0; transition: color 0.3s;
}

.archive-excerpt {
    font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block;
    margin-top: 0; margin-bottom: auto; width: 100%; opacity: 0.9;
}

.archive-footer {
    border-top: 1px dashed var(--white-alpha-10);
    padding-top: 8px; margin-top: 4px;
    display: flex; align-items: center; justify-content: space-between;
    font-family: var(--font-mono); font-size: 0.7rem;
    color: var(--primary-alpha-50); flex-shrink: 0;
}

.read-more-arrow {
    opacity: 0; transform: translateX(-10px); transition: all 0.3s;
    color: var(--text-primary);
}
.archive-item:hover .read-more-arrow { opacity: 1; transform: translateX(0); }

.loading-text {
    text-align: center; color: var(--text-secondary); font-family: var(--font-mono);
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .archive-header { margin: 10px 0; }
    .archive-item { height: auto; flex-direction: column; min-height: auto; }
    .archive-thumb { flex: none; height: 110px; width: 100%; border-right: none; border-bottom: 1px solid var(--white-alpha-10); }
    .archive-content { padding: 1.0rem; height: auto; }
    .archive-title { font-size: 1.3rem; white-space: normal; line-height: 1.4; padding-bottom: 0; margin-bottom: 0.5rem; }
    .archive-excerpt { white-space: normal; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; margin-bottom: 4px; }
    .archive-footer {margin-top: 0; padding-top: 4px;}
    .timeline-year {margin: 1.0rem 0;}
}