.cases-page[data-astro-cid-pl7l34ca]{min-height:100vh;background:var(--color-bg-secondary)}.cases-header[data-astro-cid-pl7l34ca]{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;padding:48px 0 40px}.header-inner[data-astro-cid-pl7l34ca]{max-width:1200px;margin:0 auto;padding:0 24px}.back-link[data-astro-cid-pl7l34ca]{color:#fffc;text-decoration:none;font-size:14px;display:inline-block;margin-bottom:16px}.back-link[data-astro-cid-pl7l34ca]:hover{color:#fff}.page-title[data-astro-cid-pl7l34ca]{font-size:36px;font-weight:700;margin-bottom:12px}.page-desc[data-astro-cid-pl7l34ca]{font-size:16px;line-height:1.7;color:#ffffffd9;max-width:700px;margin-bottom:28px}.header-stats[data-astro-cid-pl7l34ca]{display:flex;gap:40px}.header-stats[data-astro-cid-pl7l34ca] .stat[data-astro-cid-pl7l34ca]{display:flex;flex-direction:column}.header-stats[data-astro-cid-pl7l34ca] .stat-num[data-astro-cid-pl7l34ca]{font-size:28px;font-weight:700}.header-stats[data-astro-cid-pl7l34ca] .stat-label[data-astro-cid-pl7l34ca]{font-size:13px;color:#ffffffb3}.filter-bar[data-astro-cid-pl7l34ca]{max-width:1200px;margin:-20px auto 0;padding:20px 24px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);position:relative;z-index:10}.filter-group[data-astro-cid-pl7l34ca]{margin-bottom:12px}.filter-group[data-astro-cid-pl7l34ca]:last-child{margin-bottom:0}.filter-label[data-astro-cid-pl7l34ca]{font-size:12px;font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.5px;margin-right:12px;display:inline-block;min-width:40px}.filter-tags[data-astro-cid-pl7l34ca]{display:inline-flex;flex-wrap:wrap;gap:6px}.filter-tag[data-astro-cid-pl7l34ca]{padding:5px 12px;border:1px solid var(--color-border);background:#fff;border-radius:20px;font-size:12px;color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.filter-tag[data-astro-cid-pl7l34ca]:hover{border-color:var(--color-primary-light);color:var(--color-primary)}.filter-tag[data-astro-cid-pl7l34ca].active{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.search-box[data-astro-cid-pl7l34ca]{margin-top:12px}.search-box[data-astro-cid-pl7l34ca] input[data-astro-cid-pl7l34ca]{width:100%;max-width:400px;padding:10px 16px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:14px}.search-box[data-astro-cid-pl7l34ca] input[data-astro-cid-pl7l34ca]:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #4f46e51a}.cases-grid[data-astro-cid-pl7l34ca]{max-width:1200px;margin:32px auto;padding:0 24px;display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:20px}.case-card[data-astro-cid-pl7l34ca]{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px;transition:all var(--transition-normal);display:flex;flex-direction:column}.case-card[data-astro-cid-pl7l34ca]:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-primary-light)}.case-card-header[data-astro-cid-pl7l34ca]{display:flex;align-items:center;gap:8px;margin-bottom:14px}.case-icon[data-astro-cid-pl7l34ca]{font-size:24px}.case-industry[data-astro-cid-pl7l34ca]{padding:2px 8px;background:var(--color-primary-bg);color:var(--color-primary);border-radius:4px;font-size:11px;font-weight:500}.case-interactive[data-astro-cid-pl7l34ca]{padding:2px 8px;background:linear-gradient(135deg,#f59e0b,#ef4444);color:#fff;border-radius:4px;font-size:11px;font-weight:600}.case-difficulty[data-astro-cid-pl7l34ca]{padding:2px 8px;border-radius:4px;font-size:11px;font-weight:500;margin-left:auto}.diff-入门[data-astro-cid-pl7l34ca]{background:#ecfdf5;color:#10b981}.diff-进阶[data-astro-cid-pl7l34ca]{background:#fffbeb;color:#f59e0b}.diff-高级[data-astro-cid-pl7l34ca]{background:#fef2f2;color:#ef4444}.case-title[data-astro-cid-pl7l34ca]{font-size:18px;font-weight:700;color:var(--color-text);margin-bottom:4px}.case-industry-full[data-astro-cid-pl7l34ca]{font-size:12px;color:var(--color-text-muted);margin-bottom:10px}.case-desc[data-astro-cid-pl7l34ca]{font-size:13px;color:var(--color-text-secondary);line-height:1.6;margin-bottom:14px;flex:1}.case-metrics[data-astro-cid-pl7l34ca]{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}.metric-tag[data-astro-cid-pl7l34ca]{padding:3px 10px;background:var(--color-bg-tertiary);border-radius:4px;font-size:11px;font-weight:600;color:var(--color-text)}.case-actions[data-astro-cid-pl7l34ca]{display:flex;gap:8px}.case-actions[data-astro-cid-pl7l34ca] .btn[data-astro-cid-pl7l34ca]{flex:1}.empty-state[data-astro-cid-pl7l34ca]{text-align:center;padding:60px 24px}.empty-icon[data-astro-cid-pl7l34ca]{font-size:48px;display:block;margin-bottom:16px}.empty-state[data-astro-cid-pl7l34ca] p[data-astro-cid-pl7l34ca]{font-size:16px;color:var(--color-text-secondary);margin-bottom:4px}.empty-hint[data-astro-cid-pl7l34ca]{font-size:13px!important;color:var(--color-text-muted)!important}.modal-overlay[data-astro-cid-pl7l34ca]{display:none;position:fixed;inset:0;background:#00000080;z-index:1000;align-items:center;justify-content:center;padding:24px}.modal-overlay[data-astro-cid-pl7l34ca].active{display:flex}.modal-content[data-astro-cid-pl7l34ca]{background:#fff;border-radius:var(--radius-lg);max-width:700px;width:100%;max-height:80vh;overflow-y:auto;padding:32px;position:relative}.modal-close[data-astro-cid-pl7l34ca]{position:absolute;top:16px;right:16px;width:32px;height:32px;border:none;background:var(--color-bg-tertiary);border-radius:50%;font-size:20px;cursor:pointer;color:var(--color-text-secondary)}.modal-close[data-astro-cid-pl7l34ca]:hover{background:var(--color-border)}.case-detail-full[data-astro-cid-pl7l34ca] .detail-header[data-astro-cid-pl7l34ca]{display:flex;align-items:center;gap:12px;margin-bottom:16px}.case-detail-full[data-astro-cid-pl7l34ca] .detail-header[data-astro-cid-pl7l34ca] h2[data-astro-cid-pl7l34ca]{font-size:24px;font-weight:700;color:var(--color-text);margin:0}.case-detail-full[data-astro-cid-pl7l34ca] .detail-industry[data-astro-cid-pl7l34ca]{padding:4px 12px;background:var(--color-primary-bg);color:var(--color-primary);border-radius:4px;font-size:12px;font-weight:600}.case-detail-full[data-astro-cid-pl7l34ca] .detail-metrics[data-astro-cid-pl7l34ca]{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}.case-detail-full[data-astro-cid-pl7l34ca] .detail-metric[data-astro-cid-pl7l34ca]{padding:6px 14px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;border-radius:20px;font-size:12px;font-weight:600}.case-detail-full[data-astro-cid-pl7l34ca] .detail-section[data-astro-cid-pl7l34ca]{margin-bottom:20px;padding:16px;background:var(--color-bg-secondary);border-radius:var(--radius-md);border-left:3px solid var(--color-primary-light)}.case-detail-full[data-astro-cid-pl7l34ca] .detail-section[data-astro-cid-pl7l34ca].highlight{background:linear-gradient(135deg,#f0f4ff,#eef2ff);border-left-color:var(--color-primary)}.case-detail-full[data-astro-cid-pl7l34ca] .detail-section[data-astro-cid-pl7l34ca] h4[data-astro-cid-pl7l34ca]{font-size:15px;font-weight:700;color:var(--color-text);margin-bottom:10px}.case-detail-full[data-astro-cid-pl7l34ca] .detail-section[data-astro-cid-pl7l34ca] p[data-astro-cid-pl7l34ca]{font-size:14px;line-height:1.8;color:var(--color-text-secondary);margin:0}.case-detail-full[data-astro-cid-pl7l34ca] .detail-lessons[data-astro-cid-pl7l34ca]{margin:0;padding-left:20px}.case-detail-full[data-astro-cid-pl7l34ca] .detail-lessons[data-astro-cid-pl7l34ca] li[data-astro-cid-pl7l34ca]{font-size:13px;line-height:1.8;color:var(--color-text-secondary);margin-bottom:6px}.case-detail-full[data-astro-cid-pl7l34ca] .detail-lessons[data-astro-cid-pl7l34ca] li[data-astro-cid-pl7l34ca]:last-child{margin-bottom:0}