/*markdown的定义写在了header的60多行里，不然压不住Tailwind覆盖。*/
:root {
    --teal: #39c5bb;
    --teal-dim: rgba(57,197,187,0.15);
    --teal-glow: rgba(57,197,187,0.3);
    --bg: #f9fafb;       
    --bg2: #f3f4f6;      
    --card-bg: rgba(255, 255, 255, 0.85);
    --text: #1f2937;     
    --text-muted: #4b5563; 
    --text-dim: #9ca3af;   
    --border: rgba(57,197,187,0.3);
    --border-hover: rgba(57,197,187,0.6);
    --grid-line: rgba(0, 0, 0, 0.03); 
    --glow-radial: rgba(57,197,187,0.08); 
}
.dark {
    --teal: #39c5bb;    
    --teal-dim: rgba(57,197,187,0.12);
    --teal-glow: rgba(57,197,187,0.25);
    --bg: #0d1117;      
    --bg2: #131920;      
    --card-bg: rgba(20, 32, 44, 0.85); 
    --text: #e8f4f3;    
    --text-muted: #7a9e9b; 
    --text-dim: #4a6b68;   
    --border: rgba(57,197,187,0.15);
    --border-hover: rgba(57,197,187,0.45);
    --grid-line: rgba(57,197,187,0.03); 
    --glow-radial: rgba(57,197,187,0.07);
}


body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color 0.5s ease, color 0.5s ease;
}
body::before {
    content: ''; 
    position: fixed; 
    inset: 0;
    background: radial-gradient(ellipse 60% 50% at 15% 20%, var(--glow-radial) 0%, transparent 60%),
                radial-gradient(ellipse 40% 40% at 85% 75%, var(--glow-radial) 0%, transparent 55%);
    pointer-events: none; 
    z-index: -1;
    transition: background 0.5s ease;
}
body::after {
    content: ''; 
    position: fixed; 
    inset: 0;
    background-image: linear-gradient(var(--grid-line) 1px, transparent 1px),
                      linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none; 
    z-index: -1;
    transition: background-image 0.5s ease;
}


.pagination { 
    margin-top: 3rem; 
    display: flex; 
    justify-content: center; 
    gap: 0.5rem; 
    flex-wrap: wrap; 
    list-style: none; 
    padding: 0; 
}
.pagination li a, 
.pagination li span { 
    display: inline-block; 
    padding: 0.5rem 1rem; 
    border: 1px solid var(--border); 
    border-radius: 10px; 
    background: var(--card-bg); 
    color: var(--text-muted); 
    transition: all 0.3s ease; 
    text-decoration: none; 
    backdrop-filter: blur(8px); 
}
.pagination li.current a, 
.pagination li a:hover { 
    border-color: var(--teal); 
    background: var(--teal-dim); 
    color: var(--teal); 
    box-shadow: 0 0 15px var(--teal-glow); 
    transform: translateY(-2px); 
}

@keyframes fadeUp { 
    from { opacity: 0; transform: translateY(16px); } 
    to { opacity: 1; transform: translateY(0); } 
}
.post-card { 
    animation: fadeUp 0.6s ease both; 
    background: var(--card-bg); 
    backdrop-filter: blur(8px); 
    transition: background-color 0.5s ease, transform 0.3s ease, box-shadow 0.3s ease; 
}
.post-card:hover { 
    transform: translateY(-4px); 
    box-shadow: 0 10px 30px var(--teal-glow); 
}

body #comments .comment-list, 
body #comments .comment-list ol { 
    list-style: none; 
    padding: 0; 
    margin: 0; 
    display: block; 
    width: 100%; 
}
body #comments .comment-list li { 
    display: block; 
    width: 100%; 
    margin-top: 1.5rem; 
}
body #comments .comment-body { 
    display: flex; 
    flex-direction: column; 
    width: 100%; 
}
body #comments .comment-author { 
    display: flex; 
    align-items: center; 
    gap: 0.75rem; 
    margin-bottom: 0.5rem; 
    color: var(--text); 
    font-weight: 600; 
}
body #comments .comment-author img.avatar { 
    border-radius: 50%; 
    width: 44px; 
    height: 44px; 
    border: 2px solid var(--teal-dim); 
}
body #comments .comment-meta { 
    font-size: 0.875rem; 
    color: var(--text-dim); 
    margin-bottom: 0.75rem; 
}
body #comments .comment-meta a { 
    color: var(--text-dim); 
}
body #comments .comment-content {
    background: var(--bg2); 
    padding: 1.25rem; 
    border-radius: 0.75rem; 
    color: var(--text); 
    margin-bottom: 0.75rem; 
    border: 1px solid var(--border);
    overflow-wrap: break-word; 
    word-break: break-word; 
}
body #comments .comment-content p { 
    margin: 0; 
}
body #comments .comment-content a { 
    color: var(--teal); 
    text-decoration: underline; 
    text-underline-offset: 2px; 
    word-break: break-all; 
}
body #comments .comment-content a:hover { 
    text-shadow: 0 0 8px var(--teal-glow); 
}
body #comments .comment-reply { 
    align-self: flex-end; 
    font-size: 0.875rem; 
}
body #comments .comment-reply a { 
    color: var(--teal); 
    background: var(--teal-dim); 
    padding: 0.25rem 0.75rem; 
    border-radius: 9999px; 
    transition: all 0.3s ease; 
    text-decoration: none; 
}
body #comments .comment-reply a:hover { 
    background: var(--teal); 
    color: #fff; 
    box-shadow: 0 0 10px var(--teal-glow); 
}
body #comments .comment-children { 
    margin-top: 1.5rem; 
    padding-left: 2rem; 
    border-left: 2px solid var(--teal-dim); 
    width: 100%; 
}
@media (max-width: 768px) { 
    body #comments .comment-children { 
        padding-left: 1rem; 
    } 
}
body #respond { 
    display: block; 
    width: 100%; 
    clear: both; 
    margin-top: 2rem; 
}