:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.75);
    --border-color: rgba(75, 85, 99, 0.4);
    --accent: #38bdf8;
    --accent-hover: #0284c7;
    --accent-glow: rgba(56, 189, 248, 0.25);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --link-color: #38bdf8;
    --link-hover: #7dd3fc;
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.7;
    font-size: 1.05rem;
    padding-bottom: 60px;
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
header {
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 18px 0;
}
header .header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo-text { font-size: 1.35rem; font-weight: 700; color: #fff; text-decoration: none; display: flex; align-items: center; gap: 8px; }
.logo-text span { color: var(--accent); }
nav ul { display: flex; list-style: none; gap: 28px; }
nav a { color: var(--text-secondary); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
nav a:hover, nav a.active { color: var(--accent); }
.hero { padding: 64px 0 40px; text-align: center; border-bottom: 1px solid rgba(75, 85, 99, 0.2); margin-bottom: 48px; }
.hero-tag { display: inline-block; background: rgba(56, 189, 248, 0.1); color: var(--accent); padding: 4px 14px; border-radius: 9999px; font-size: 0.82rem; font-weight: 600; text-transform: uppercase; margin-bottom: 16px; border: 1px solid rgba(56, 189, 248, 0.2); }
.hero h1 { font-size: 2.4rem; font-weight: 800; line-height: 1.25; margin-bottom: 16px; color: #ffffff; }
.hero p { font-size: 1.15rem; color: var(--text-secondary); max-width: 780px; margin: 0 auto; }
.layout-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 48px; }
.article-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 32px; margin-bottom: 32px; backdrop-filter: blur(8px); }
.article-card .meta { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 12px; }
.article-card h2 { font-size: 1.55rem; line-height: 1.35; margin-bottom: 14px; }
.article-card h2 a { color: #ffffff; text-decoration: none; }
.article-card h2 a:hover { color: var(--accent); }
.article-card p { color: var(--text-secondary); margin-bottom: 20px; }
.read-more { color: var(--accent); text-decoration: none; font-weight: 600; font-size: 0.95rem; }
.article-full { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 14px; padding: 44px; backdrop-filter: blur(10px); }
.article-full h1 { font-size: 2.2rem; line-height: 1.28; margin-bottom: 16px; color: #ffffff; }
.article-full .meta-bar { display: flex; gap: 16px; color: var(--text-muted); font-size: 0.9rem; padding-bottom: 24px; border-bottom: 1px solid rgba(75, 85, 99, 0.3); margin-bottom: 32px; }
.article-full .content p { margin-bottom: 22px; color: #d1d5db; }
.article-full .content h2 { font-size: 1.55rem; margin: 36px 0 16px; color: #ffffff; border-bottom: 1px solid rgba(75, 85, 99, 0.2); padding-bottom: 8px; }
.article-full .content h3 { font-size: 1.25rem; margin: 24px 0 12px; color: var(--accent); }
.article-full .content a { color: var(--link-color); text-decoration: underline; text-underline-offset: 3px; font-weight: 500; }
.article-full .content ul { margin-bottom: 22px; padding-left: 24px; color: #d1d5db; }
.article-full .content li { margin-bottom: 8px; }
.sidebar-widget { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 28px; margin-bottom: 32px; }
.sidebar-widget h3 { font-size: 1.15rem; color: #ffffff; margin-bottom: 16px; border-bottom: 1px solid rgba(75, 85, 99, 0.3); padding-bottom: 10px; }
.author-name { font-weight: 700; color: var(--accent); font-size: 1.05rem; }
.author-role { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; }
.author-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
footer { border-top: 1px solid var(--border-color); margin-top: 64px; padding-top: 32px; text-align: center; color: var(--text-muted); font-size: 0.88rem; }
@media (max-width: 860px) { .layout-grid { grid-template-columns: 1fr; } }