:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent-color: #bb86fc;
    --accent-hover: #9965f4;
    --border-color: #333;
    --nav-bg: rgba(30, 30, 30, 0.95);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 60px 0 40px;
    text-align: center;
    background: linear-gradient(to bottom, #1a1a1a, var(--bg-color));
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--accent-color);
}

header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Navigation */
.main-nav {
    background-color: var(--nav-bg);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    margin-bottom: 40px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.main-nav a {
    color: var(--text-primary);
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.main-nav a:hover {
    color: var(--accent-color);
    background-color: rgba(187, 134, 252, 0.1);
}

/* Main Content */
.category-section {
    margin-bottom: 60px;
    scroll-margin-top: 100px; /* For sticky header offset */
}

.category-section h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.category-section h2 i {
    color: var(--accent-color);
}

.sub-title {
    font-size: 1.3rem;
    margin: 20px 0 15px;
    color: var(--text-secondary);
    padding-left: 10px;
    border-left: 3px solid var(--accent-color);
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 20px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    border-color: var(--accent-color);
}

.card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.card .desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 15px;
    flex-grow: 1;
}

.card .meta {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
    margin-bottom: 15px;
    font-family: monospace;
    color: #ffb74d;
}

.btn {
    display: inline-block;
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 8px 15px;
    border-radius: 5px;
    text-align: center;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    margin-top: auto;
}

.btn:hover {
    background-color: var(--accent-color);
    color: #000;
}

/* Description Text */
.section-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1rem;
    max-width: 800px;
}

/* Collapsible Details */
details {
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

summary {
    cursor: pointer;
    font-weight: 500;
    color: var(--accent-color);
    list-style: none; /* Hide default marker */
    display: flex;
    align-items: center;
    gap: 8px;
}

summary::-webkit-details-marker {
    display: none;
}

summary::before {
    content: '\f0da'; /* FontAwesome caret-right */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    transition: transform 0.2s ease;
    font-size: 1.2em;
}

details[open] summary::before {
    transform: rotate(90deg);
}

summary::after {
    content: "（点我展开）";
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-left: 5px;
    opacity: 0.8;
    font-weight: normal;
}

details[open] summary::after {
    content: "（点击收起）";
}

details[open] summary {
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

details p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 10px;
}

details p:last-child {
    margin-bottom: 0;
}

/* Code Block */
.code-block {
    background-color: #000;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
}

.code-block p {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.code-block pre {
    color: #a5d6ff;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
}

/* Plugin Recommendations */
.plugin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.plugin-category {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.plugin-category h3 {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 15px;
    color: var(--accent-color);
}

.plugin-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.plugin-list li {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.plugin-list li.recommended {
    background-color: rgba(187, 134, 252, 0.2);
    color: var(--accent-color);
    font-weight: bold;
    border: 1px solid rgba(187, 134, 252, 0.3);
}

.remark {
    font-size: 0.85rem;
    color: var(--text-secondary);
    background-color: rgba(0, 0, 0, 0.2);
    padding: 10px;
    border-radius: 5px;
    border-left: 3px solid #ffb74d;
}

.remark strong {
    color: #ffb74d;
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    margin-top: 60px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .main-nav ul {
        gap: 10px;
    }
    
    .main-nav a {
        font-size: 0.9rem;
    }
    
    .card-grid {
        grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
    }
}