:root{--bg: #f5f7fb;--card-bg: #ffffff;--text: #1f2937;--text-soft: #6b7280;--border: #eef0f5;--primary: #2563eb;--shadow: 0 2px 12px rgba(17, 24, 39, .06);--radius: 14px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}.app{max-width:1120px;margin:0 auto;padding:24px 16px 48px}.page{width:100%}.top-nav{margin-bottom:18px}.nav-tabs{display:inline-flex;gap:8px;padding:4px;border-radius:12px;background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow)}.nav-tab{display:inline-block;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:600;color:var(--text-soft);text-decoration:none;transition:background .15s,color .15s}.nav-tab:hover{color:var(--primary)}.nav-tab-active{background:#2563eb1a;color:var(--primary)}.link-panel .panel-desc{margin:0 0 18px;font-size:14px;line-height:1.6;color:var(--text-soft)}.link-panel code{padding:1px 6px;border-radius:6px;background:#f3f4f6;font-size:12px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}.field{display:flex;flex-direction:column;gap:8px}.field-label{font-size:13px;font-weight:600;color:var(--text)}.field-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:10px;font-size:14px;color:var(--text);background:#fff}.field-input:focus{outline:none;border-color:#2563eb73;box-shadow:0 0 0 3px #2563eb1f}.result-box{padding:14px;border-radius:12px;background:#f8fafc;border:1px dashed #cbd5e1}.result-label{font-size:12px;color:var(--text-soft);margin-bottom:8px}.result-url{word-break:break-all;font-size:14px;line-height:1.6;color:var(--text);margin-bottom:12px}.result-actions{display:flex;gap:10px}.btn{border:none;border-radius:10px;padding:10px 16px;font-size:14px;font-weight:600;cursor:pointer}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.hint{margin:14px 0 0;font-size:12px;color:var(--text-soft)}.header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-bottom:20px}.header-title{display:flex;align-items:center;gap:10px}.header-title h1{font-size:20px;margin:0;font-weight:700}.badge{font-size:12px;padding:2px 10px;border-radius:999px;background:#2563eb1a;color:var(--primary);font-weight:600}.updated{font-size:13px;color:var(--text-soft)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:18px}.card{background:var(--card-bg);border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow);border:1px solid var(--border)}.card .label{font-size:13px;color:var(--text-soft);margin-bottom:8px}.card .value{font-size:28px;font-weight:700;line-height:1.1}.card .sub{font-size:12px;color:var(--text-soft);margin-top:6px}.card .value.accent{color:var(--primary)}.card .value.green{color:#16a34a}.card-meta{margin-top:10px}.delta{display:inline-flex;align-items:center;font-size:12px;font-weight:600;padding:2px 8px;border-radius:999px}.delta.up{color:#16a34a;background:#16a34a1a}.delta.down{color:#ef4444;background:#ef44441a}.delta.flat{color:var(--text-soft);background:#6b72801a}.card-foot{margin-top:10px;padding-top:10px;border-top:1px dashed var(--border);font-size:12px;color:var(--text-soft)}.panels{display:grid;grid-template-columns:1fr;gap:16px}.panel{background:var(--card-bg);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);border:1px solid var(--border)}.panel-title{font-size:15px;font-weight:600;margin:0 0 12px}.chart{width:100%;height:360px}.chart-sm{height:300px}.panels-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.state{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--text-soft);text-align:center;padding:24px}.state h2{color:var(--text);margin:0}.spinner{width:34px;height:34px;border:3px solid rgba(37,99,235,.2);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.footer{margin-top:28px;text-align:center;font-size:12px;color:#b0b6c3}@media(max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}.panels-2,.form-grid{grid-template-columns:1fr}}@media(max-width:520px){.cards{grid-template-columns:1fr}.card .value{font-size:24px}}