:root {
    --geo-primary: #6C5CE7;
    --geo-text: #2D3436;
    --geo-bg: #FFFFFF;
    --geo-gray-bg: #F8F9FA;
    --geo-border: #E0E0E0;
    --geo-max-width: 800px;
}

.geo-preview-banner {
    background: #fff3cd;
    color: #856404;
    text-align: center;
    padding: 0.6em 1em;
    font-size: 0.9em;
    border-bottom: 1px solid #ffeeba;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--geo-text);
    background: var(--geo-bg);
    line-height: 1.8;
    margin: 0;
    padding: 0;
}

.geo-nav {
    background: var(--geo-bg);
    border-bottom: 1px solid var(--geo-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 0.8em 1.5em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--geo-primary);
    text-decoration: none;
}

.nav-links a {
    color: var(--geo-text);
    text-decoration: none;
    margin-left: 1.5em;
    font-size: 0.95em;
}

.nav-links a:hover {
    color: var(--geo-primary);
}

.geo-article {
    max-width: var(--geo-max-width);
    margin: 0 auto;
    padding: 1.5em;
}

.article-header {
    margin-bottom: 2em;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1em;
    margin-bottom: 0.5em;
    font-size: 0.9em;
    color: #888;
}

.category-badge {
    background: rgba(108, 92, 231, 0.1);
    color: var(--geo-primary);
    padding: 0.2em 0.6em;
    border-radius: 4px;
    font-size: 0.85em;
}

.article-header h1 {
    font-size: 1.8em;
    line-height: 1.4;
    margin: 0.3em 0;
}

.article-subtitle {
    font-size: 1.1em;
    color: #666;
    margin: 0.5em 0 0;
}

.article-body h2 {
    margin-top: 2em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--geo-border);
}

.article-body h3 {
    margin-top: 1.5em;
}

.article-body p {
    margin: 1em 0;
}

.article-body a {
    color: var(--geo-primary);
    text-decoration: underline;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1em 0;
}

.article-body th,
.article-body td {
    border: 1px solid var(--geo-border);
    padding: 0.6em 1em;
    text-align: left;
}

.article-body th {
    background: var(--geo-gray-bg);
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.article-body ul,
.article-body ol {
    padding-left: 1.5em;
}

.xcx-cta {
    margin-top: 2em;
    padding: 1.5em;
    background: var(--geo-gray-bg);
    border-radius: 12px;
    text-align: center;
}

.xcx-btn {
    display: inline-block;
    padding: 0.8em 2em;
    background: var(--geo-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    cursor: pointer;
}

.xcx-btn:hover {
    opacity: 0.9;
}

.geo-hidden {
    display: none !important;
}

.xcx-launch-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8em;
}

.xcx-open-tag-host {
    display: flex;
    justify-content: center;
}

.xcx-open-tag-host wx-open-launch-weapp {
    display: block;
}

.xcx-desktop-tip {
    margin: 0;
    font-size: 0.9em;
    color: #666;
}

.xcx-qr-section {
    margin-top: 1em;
}

.xcx-qr-section img {
    width: 160px;
    height: 160px;
}

.faq-section {
    margin-top: 2em;
    padding-top: 1em;
    border-top: 2px solid var(--geo-primary);
}

.faq-item {
    margin: 1em 0;
    padding: 1em;
    background: var(--geo-gray-bg);
    border-radius: 8px;
}

.faq-item h3 {
    font-size: 1.1em;
    color: var(--geo-primary);
    margin: 0 0 0.5em;
}

.faq-item p {
    margin: 0;
}

.geo-footer {
    margin-top: 3em;
    padding: 2em 1.5em;
    border-top: 1px solid var(--geo-border);
    text-align: center;
    color: #888;
    font-size: 0.9em;
}

.footer-brand {
    font-weight: 600;
    color: var(--geo-text);
    margin: 0 0 0.3em;
}

.footer-desc {
    margin: 0 0 0.3em;
}

.footer-copy {
    margin: 0;
}

.geo-list-page {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.5em;
}

.list-header h1 {
    font-size: 1.8em;
    margin: 0;
}

.list-desc {
    color: #666;
    margin: 0.3em 0 1em;
}

.category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5em;
    margin-bottom: 1.5em;
}

.category-link {
    padding: 0.4em 1em;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9em;
    color: var(--geo-text);
    background: var(--geo-gray-bg);
    border: 1px solid var(--geo-border);
}

.category-link.active,
.category-link:hover {
    background: var(--geo-primary);
    color: white;
    border-color: var(--geo-primary);
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.2em;
}

.content-card {
    display: block;
    text-decoration: none;
    color: var(--geo-text);
    border: 1px solid var(--geo-border);
    border-radius: 12px;
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.content-card:hover {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.card-cover {
    width: 100%;
    height: 160px;
    overflow: hidden;
}

.card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-body {
    padding: 1em;
}

.card-category {
    font-size: 0.8em;
    color: var(--geo-primary);
    background: rgba(108, 92, 231, 0.1);
    padding: 0.15em 0.5em;
    border-radius: 4px;
}

.card-title {
    font-size: 1.1em;
    margin: 0.4em 0 0.3em;
    line-height: 1.4;
}

.card-subtitle {
    font-size: 0.9em;
    color: #888;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-time {
    font-size: 0.8em;
    color: #aaa;
    display: block;
    margin-top: 0.5em;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 1em;
    margin-top: 2em;
}

.page-btn {
    padding: 0.5em 1.5em;
    border: 1px solid var(--geo-border);
    border-radius: 8px;
    text-decoration: none;
    color: var(--geo-text);
    font-size: 0.95em;
}

.page-btn:hover {
    background: var(--geo-gray-bg);
}

.ref-section {
    margin-top: 2em;
    padding-top: 1em;
    border-top: 1px solid var(--geo-border);
}

.ref-section h2 {
    font-size: 1.2em;
    margin-bottom: 0.5em;
}

.ref-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ref-list li {
    padding: 0.3em 0;
    font-size: 0.9em;
    color: #666;
}

.ref-section-label {
    color: var(--geo-text);
    font-weight: 600;
}

.ref-list a {
    color: var(--geo-primary);
    text-decoration: none;
    word-break: break-all;
}

.ref-list a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    .geo-article {
        padding: 1em;
    }

    .article-header h1 {
        font-size: 1.4em;
    }

    .article-body table {
        font-size: 0.9em;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }
}