/* ============================================================
   home.css — 首页专属样式
   ============================================================ */

/* ── 置顶精选卡 ── */
.ima-pinned-card {
    display: grid;
    grid-template-columns: 340px 1fr;
    margin-bottom: 28px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: box-shadow .2s, transform .2s;
}
.ima-pinned-card:hover {
    box-shadow: 0 8px 32px rgba(59,130,246,.12);
    transform: translateY(-2px);
}

.ima-pinned-img {
    position: relative;
    overflow: hidden;
    display: block;
    min-height: 220px;
    background: var(--grad-primary);
}
.ima-pinned-img img { width: 100%; height: 100%; object-fit: cover; }
.ima-pinned-img--blue   { background: linear-gradient(135deg, #3b82f6, #8b5cf6); }
.ima-pinned-img--cyan   { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
.ima-pinned-img--purple { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.ima-pinned-img--green  { background: linear-gradient(135deg, #10b981, #06b6d4); }
.ima-pinned-img--pink   { background: linear-gradient(135deg, #ec4899, #8b5cf6); }

.ima-pinned-badge {
    position: absolute;
    bottom: 14px;
    left: 14px;
    background: rgba(255,255,255,.22);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,.3);
    color: #fff;
    font-size: 12px;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 20px;
}

.ima-pinned-body {
    padding: 24px 26px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
    background: #fff;
}
.ima-pinned-cat { display: flex; gap: 8px; flex-wrap: wrap; }
.ima-pinned-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.4;
}
.ima-pinned-title a { color: inherit; }
.ima-pinned-title a:hover { color: var(--primary); }
.ima-pinned-desc {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── 节标题 ── */
.ima-section-hdr {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}
.ima-section-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 9px;
}
.ima-section-title::before {
    content: '';
    width: 4px;
    height: 18px;
    border-radius: 2px;
    background: var(--grad-primary);
    display: inline-block;
}
.ima-section-more {
    font-size: 13px;
    color: var(--primary);
    transition: gap .15s;
}
.ima-section-more:hover { text-decoration: underline; }

/* ── 文章列表行 ── */
.ima-post-list { display: flex; flex-direction: column; gap: 0; }

.ima-post-row {
    display: flex;
    gap: 16px;
    padding: 18px 0;
    border-bottom: 1px solid var(--gray-100);
    transition: background .15s;
}
.ima-post-row:last-child { border-bottom: none; }
.ima-post-row:hover { background: var(--gray-50); margin: 0 -12px; padding: 18px 12px; border-radius: var(--radius-md); }

.ima-post-thumb {
    width: 100px;
    height: 76px;
    flex-shrink: 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    display: block;
}
.ima-post-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.ima-post-thumb:hover img { transform: scale(1.04); }
.ima-post-thumb--blue   { background: rgba(59,130,246,.08); }
.ima-post-thumb--cyan   { background: rgba(6,182,212,.08); }
.ima-post-thumb--purple { background: rgba(139,92,246,.08); }
.ima-post-thumb--green  { background: rgba(16,185,129,.08); }
.ima-post-thumb--pink   { background: rgba(236,72,153,.08); }

.ima-thumb-placeholder {
    width: 100%;
    height: 100%;
    background: var(--grad-primary);
    opacity: .18;
}

.ima-post-info { flex: 1; display: flex; flex-direction: column; gap: 5px; }
.ima-post-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-900);
    line-height: 1.45;
    margin: 0;
}
.ima-post-title a { color: inherit; }
.ima-post-title a:hover { color: var(--primary); }
.ima-post-excerpt {
    font-size: 13px;
    color: var(--gray-400);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── 元信息通用 ── */
.ima-post-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.ima-meta-date, .ima-meta-read { font-size: 12px; color: var(--gray-400); }
.ima-meta-sep { font-size: 12px; color: var(--gray-300); }
.ima-meta-views { font-size: 12px; color: var(--primary); }

/* ── 无文章 ── */
.ima-no-posts { padding: 40px 0; text-align: center; color: var(--gray-400); }

/* ── 响应式 ── */
@media (max-width: 768px) {
    .ima-pinned-card { grid-template-columns: 1fr; }
    .ima-pinned-img  { min-height: 180px; }
    .ima-pinned-body { padding: 18px; }
    .ima-pinned-title { font-size: 17px; }
    .ima-post-thumb { width: 80px; height: 64px; }
    .ima-post-row:hover { margin: 0; padding: 18px 0; }
}

@media (max-width: 480px) {
    .ima-post-thumb { display: none; }
}