body { margin: 0; }

/* 侧边栏布局 */
.app-wrapper { display: flex; min-height: 100vh; }
.sidebar-column { width: 240px; flex-shrink: 0; }
.main-column { flex: 1; min-width: 0; padding: 16px 24px; }
.mobile-header { display: none; }
@media (max-width: 768px) {
    .app-wrapper { flex-direction: column; }
    .sidebar-column { display: none; }
    .mobile-header { display: flex; align-items: center; gap: 10px; padding: 8px; background: #1e293b; color: #fff; }
}

/* 搜索区域 */
.search-section { text-align: center; padding: 20px 0; }
.page-title { font-size: 24px; font-weight: 700; color: #1e293b; margin-bottom: 20px; }
.search-bar { display: inline-flex; align-items: center; gap: 10px; }
.search-input { width: 400px; height: 40px; font-size: 16px; padding: 0 14px; border: 2px solid #cbd5e1; border-radius: 8px; transition: border-color 0.2s; }
.search-input:focus { outline: none; border-color: #667eea; box-shadow: 0 0 0 3px rgba(102,126,234,0.15); }
.btn-search { height: 40px; padding: 0 24px; font-size: 16px; border: none; border-radius: 8px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: #fff; cursor: pointer; font-weight: 600; }
.btn-search:hover { opacity: 0.9; }

/* 结果列表 */
.result-list { max-width: 800px; margin: 0 auto; }
.result-item { border: 1px solid #e2e8f0; border-radius: 8px; padding: 14px 18px; margin: 10px 0; background: #fff; transition: box-shadow 0.2s; }
.result-item:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.result-title { font-size: 18px; font-weight: 700; color: #1e293b; }
.result-meta { color: #64748b; font-size: 13px; margin-top: 6px; }
.result-why { color: #475569; font-size: 14px; margin-top: 8px; line-height: 1.6; }
.link-ref { color: #667eea; text-decoration: none; }
.link-ref:hover { text-decoration: underline; }
.no-result { color: #94a3b8; text-align: center; padding: 40px 0; font-size: 16px; }
.result-count { color: #64748b; text-align: center; margin-top: 20px; font-size: 14px; }