:root{--color-primary: #1877f2;--color-primary-hover: #166fe5;--color-primary-active: #1461c9;--color-bg: #f0f2f5;--color-surface: #ffffff;--color-text: #1c1e21;--color-text-secondary: #65676b;--color-border: #dddfe2;--color-danger: #fa383e;--color-success: #31a24c;--radius-card: 8px;--radius-sm: 6px;--shadow-card: 0 1px 2px rgba(0, 0, 0, .1), 0 1px 3px rgba(0, 0, 0, .06);--shadow-card-hover: 0 4px 12px rgba(0, 0, 0, .12);--sidebar-width: 220px;--font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji"}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-stack);font-size:15px;line-height:1.5;color:var(--color-text);background:var(--color-bg)}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.app{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--color-primary);color:#fff;position:sticky;top:0;align-self:flex-start;height:100vh;display:flex;flex-direction:column}.sidebar-header{padding:20px;display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;border-bottom:1px solid rgba(255,255,255,.2)}.nav-list{list-style:none;padding:12px 8px;flex:1}.nav-item a{display:block;padding:10px 16px;margin:4px 0;border-radius:var(--radius-sm);color:#ffffffd9;font-weight:500;transition:background .15s}.nav-item a:hover,.nav-item a.active{background:#fff3;color:#fff;text-decoration:none}.content{flex:1;padding:28px 40px 80px;max-width:1000px;width:100%}.page-title{font-size:26px;font-weight:700;margin-bottom:20px}.page-subtitle{color:var(--color-text-secondary);margin-bottom:20px}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.card-list{display:flex;flex-direction:column;gap:12px}.card{background:var(--color-surface);border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-card);transition:box-shadow .15s,transform .15s;border:1px solid var(--color-border)}a.card{color:inherit;display:block}.card:hover{box-shadow:var(--shadow-card-hover);text-decoration:none}.card-title{font-size:17px;font-weight:600;margin-bottom:6px}.card-meta{color:var(--color-text-secondary);font-size:13px}.badge{display:inline-block;padding:2px 8px;border-radius:12px;background:#e7f3ff;color:var(--color-primary);font-size:12px;margin-right:6px}.timeline{display:flex;gap:16px;overflow-x:auto;padding:8px 2px 20px}.timeline .card{min-width:200px;flex-shrink:0}.search-box{display:flex;gap:8px;margin-bottom:24px}input[type=text],input[type=number],textarea,select{width:100%;padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:15px;font-family:inherit}input:focus,textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 2px #1877f233}.btn{padding:10px 18px;border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:600;cursor:pointer;transition:background .15s;background:#e4e6eb;color:var(--color-text)}.btn:hover{background:#d8dadf}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn:disabled{opacity:.6;cursor:not-allowed}.form-group{margin-bottom:16px}label{display:block;margin-bottom:6px;font-weight:600;font-size:14px}.notice{padding:10px 14px;border-radius:var(--radius-sm);margin-bottom:16px;font-size:14px}.notice-warn{background:#fff8e1;color:#8a6d3b;border:1px solid #f0e2b6}.notice-error{background:#ffebe9;color:#b71c1c;border:1px solid #f5c6cb}.support-footer{margin-top:40px;padding:16px;text-align:center;font-size:14px;color:var(--color-text-secondary);border-top:1px solid var(--color-border)}.support-footer .link-btn{background:none;border:none;color:var(--color-primary);font-weight:600;cursor:pointer;font-size:14px;padding:0}.support-footer .link-btn:hover{text-decoration:underline}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--color-surface);border-radius:12px;width:90%;max-width:560px;max-height:90vh;overflow-y:auto;box-shadow:0 8px 32px #00000040}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--color-border)}.modal-header h3{font-size:19px}.modal-close{background:none;border:none;font-size:24px;color:var(--color-text-secondary);cursor:pointer;line-height:1}.modal-body{padding:22px}.payment-methods{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:20px}.payment-item{display:flex;flex-direction:column;align-items:center;gap:10px}.qr-code{width:180px;height:180px;object-fit:contain;border:1px solid var(--color-border);border-radius:8px;background:#fff}.donation-intro,.donation-footer{text-align:center;color:var(--color-text-secondary)}.donation-intro{margin-bottom:20px}.donation-footer{margin-top:16px;font-size:13px}.graph-container{border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);overflow:hidden;margin-top:12px}.section{margin-bottom:32px}.section h2{font-size:20px;margin-bottom:14px}@media (max-width: 768px){.app{flex-direction:column}.sidebar{width:100%;height:auto;position:static}.payment-methods{grid-template-columns:1fr}}