:root {
    --primary: #6366f1;
    --accent: #f43f5e;
    --bg: #020617;
    --glass: rgba(15, 23, 42, 0.7);
    --border: rgba(255, 255, 255, 0.08);
}

* { margin:0; padding:0; box-sizing: border-box; }
body { background: var(--bg); color: #f1f5f9; font-family: -apple-system, sans-serif; line-height: 1.6; }

/* 极光背景动画 */
.aurora-bg {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: radial-gradient(circle at 0% 0%, #1e1b4b 0%, transparent 50%),
                radial-gradient(circle at 100% 100%, #312e81 0%, transparent 50%);
    z-index: -1;
}

/* 导航栏 */
.glass-nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(2, 6, 23, 0.8); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border); padding: 1rem 0;
}
.nav-content { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 0 20px; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.nav-links a { margin-left: 2rem; text-decoration: none; color: #94a3b8; font-weight: 500; transition: 0.3s; }
.nav-links a.active { color: white; }

/* 响应式布局 */
.main-layout { max-width: 1200px; margin: 2rem auto; display: grid; grid-template-columns: 300px 1fr; gap: 2rem; padding: 0 20px; }

.glass-card { background: var(--glass); backdrop-filter: blur(16px); border: 1px solid var(--border); border-radius: 1.5rem; padding: 1.5rem; }

/* 侧边栏样式 */
.profile-box { text-align: center; }
.avatar-wrapper img { width: 100px; height: 100px; border-radius: 2rem; margin-bottom: 1rem; border: 2px solid var(--primary); }
.status-item { display: flex; justify-content: space-between; font-size: 0.85rem; margin-top: 0.8rem; border-bottom: 1px solid var(--border); padding-bottom: 0.4rem; }

/* 博客流 */
.post-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.post-card { transition: 0.3s; cursor: pointer; }
.post-card:hover { transform: translateY(-5px); border-color: var(--primary); }
.post-meta { font-size: 0.75rem; color: var(--primary); margin-bottom: 0.5rem; display: block; }
.post-card h3 { margin-bottom: 0.8rem; }

/* 手机端适配 */
@media (max-width: 850px) {
    .main-layout { grid-template-columns: 1fr; margin-top: 1rem; }
    .sidebar { display: none; } /* 手机端隐藏侧边栏以节省空间 */
    .nav-links { display: none; } /* 手机端可改用汉堡菜单，此处简写 */
    .logo { margin: 0 auto; }
}

/* 按钮与徽章 */
.ping-badge { font-size: 0.75rem; background: rgba(99, 102, 241, 0.15); color: var(--primary); padding: 4px 12px; border-radius: 2rem; }
.btn-primary { background: var(--primary); color: white; border: none; padding: 0.8rem 1.5rem; border-radius: 0.8rem; cursor: pointer; font-weight: bold; margin-top: 1rem; }