:root{--color-text:#13213a;--color-muted:#60708f;--color-primary:#0069e6;--color-primary-strong:#0057c2;--color-primary-soft:#e8f1ff;--color-primary-panel:#f1f6ff;--color-bg:#f5f8ff;--color-border:#cbdaf6;--color-border-strong:#a8c5f5;color:var(--color-text);background:var(--color-bg);font-synthesis:none;text-rendering:optimizelegibility;font-family:Noto Sans TC,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}.public-shell{background:radial-gradient(circle at top,#0069e61f,#0000 28%),linear-gradient(#f8faff 0%,#f1f6ff 100%);min-height:100vh;padding:24px 16px}.public-panel{border:1px solid var(--color-border);background:#fff;border-radius:22px;gap:14px;width:100%;margin:0 auto;padding:20px;display:grid;box-shadow:0 10px 24px 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var(--color-border-strong);color:var(--color-primary-strong);background:#fff;border-radius:999px;justify-self:start;margin:0 0 8px;padding:8px 12px;font-size:14px;font-weight:700;display:inline-flex}.trk-stack{gap:14px;display:grid}.trk-panel h2{color:var(--color-primary-strong);font-size:18px}.trk-order-panel{text-align:center;background:#f8fafc;border-color:#e2e8f0;justify-items:center;gap:6px}.trk-order-number{color:#0f172a;font-size:20px}.trk-order-date{color:#64748b;font-size:14px}.trk-order-meta{text-align:left;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;width:100%;margin:6px 0 0;display:grid}.trk-order-meta div{background:#fff;border:1px solid #e2e8f0;border-radius:10px;min-width:0;padding:9px 10px}.trk-order-meta dt{color:#64748b;font-size:12px}.trk-order-meta dd{overflow-wrap:anywhere;color:#0f172a;margin:3px 0 0;font-size:14px;font-weight:700}.trk-invoice-link-button{background:var(--color-primary);color:#fff;border-radius:10px;justify-content:center;align-items:center;min-height:40px;padding:0 16px;font-weight:700;text-decoration:none;display:inline-flex}.trk-invoice-link-button:hover{background:var(--color-primary-strong)}.trk-document-actions{grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px;width:100%;margin-top:6px;display:grid}@media (width<=480px){.trk-order-meta{grid-template-columns:1fr}}.trk-unavailable-panel{flex-direction:column;align-items:stretch;gap:10px;display:flex}.trk-unavailable-body{flex-direction:column;gap:12px;display:flex}.trk-unavailable-tip{background:linear-gradient(#fff,#fff5f1);border:1px solid #f0c7b7;border-radius:16px;gap:6px;padding:12px 14px;display:grid}.trk-status-tags{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.trk-status-tag{color:#15785f;background:#ecfaf6;border:1px solid #c2ebdf;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700}.trk-status-tag.is-warning{color:#b45309;background:#fff3e8;border-color:#f4c7a1}.trk-choice-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.trk-choice{color:#1e293b;text-align:center;cursor:pointer;background:#fff;border:2px solid #e2e8f0;border-radius:16px;justify-content:center;align-items:center;min-height:84px;padding:12px 6px;transition:all .2s;display:flex}.trk-choice:hover{border-color:var(--color-primary);background:var(--color-primary-panel)}.trk-choice.is-active{border-color:var(--color-primary);background:linear-gradient(180deg, #f7f9ff, var(--color-primary-soft));box-shadow:0 8px 20px #0069e61f}.trk-choice-title{white-space:nowrap;word-break:keep-all;font-size:clamp(11px,3.5vw,14px);font-weight:400;line-height:1.25}.trk-choice.is-active .trk-choice-title{color:var(--color-primary-strong)}.trk-hint-box{color:#475569;background:#f1f5f9;border-left:4px solid #94a3b8;border-radius:12px;gap:4px;padding:12px 16px;display:grid}.trk-hint-box.is-warning{border-left-color:var(--color-primary);background:var(--color-primary-panel);color:var(--color-primary-strong)}.trk-form{gap:16px;display:grid}.trk-field-stack,.trk-field{gap:8px;display:grid}.trk-field-header{justify-content:space-between;align-items:flex-end;gap:8px;display:flex}.trk-field-header strong{font-size:14px}.trk-field-meta{color:#0ea5e9;font-size:13px;font-style:normal;font-weight:700}.trk-field-meta.is-optional{color:#94a3b8}.trk-field input{color:#0f172a;background:#fff;border:1px solid #cbd5e1;border-radius:12px;width:100%;padding:14px;font-size:15px}.trk-field input:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #0069e61a}.trk-field input:disabled{color:#64748b;background:#eef3fb}.trk-field-hint{color:var(--color-primary-strong);font-size:13px}.trk-field-hint-warning{color:#9a6700}.trk-suggestion-list{background:#f9fffe;border:1px solid #cfe4e1;border-radius:14px;gap:8px;padding:10px;display:grid}.trk-suggestion-item{color:#173740;text-align:left;cursor:pointer;background:#fff;border:1px solid #d7e8e4;border-radius:12px;align-items:center;gap:10px;width:100%;padding:10px 12px;display:flex}.trk-suggestion-item strong{min-width:44px}.trk-suggestion-item span{color:#5b7280;font-size:13px}.trk-inline-error{color:#ef4444;font-size:14px;font-weight:700}.trk-actions{gap:12px;margin-top:4px;display:flex}.trk-primary-button,.trk-secondary-button{cursor:pointer;border-radius:12px;flex:1;padding:14px;font-size:15px;font-weight:700;transition:transform .1s}.trk-primary-button:active,.trk-secondary-button:active{transform:scale(.98)}.trk-primary-button{background:linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));color:#fff;border:0;box-shadow:0 4px 12px #0069e633}.trk-primary-button:disabled{box-shadow:none;cursor:not-allowed;background:#cbd5e1}.trk-secondary-button{color:#475569;background:#fff;border:1px solid #cbd5e1}.trk-result{border-radius:18px;width:100%;margin:0}.trk-result-success{background:linear-gradient(#fff,#f3fbfa);border-color:#b7ded8}.trk-result-message{white-space:pre-wrap}.trk-result-blocked{background:linear-gradient(#fff,#fff5f1);border-color:#f0c7b7}.trk-result-list{gap:14px;margin:16px 0;display:grid}.trk-result-list dl{margin:0}.trk-result-list dt{color:#5b7280;margin-bottom:4px;font-size:13px;font-weight:700}.trk-result-list dd{margin:0}.trk-result-invoice-actions{flex-wrap:wrap;align-items:end;gap:18px;display:flex}.trk-inquiry-shell{align-content:start;gap:16px;padding:24px 12px;display:grid}.trk-inquiry-back{min-height:44px;color:var(--color-text);cursor:pointer;background:#fff;border:1px solid #94a3b8;border-radius:10px;justify-self:start;align-items:center;padding:8px 14px;font-weight:700;display:inline-flex}.trk-inquiry-column{gap:16px;width:100%;max-width:420px;margin:0 auto;display:grid}.trk-inquiry-header,.trk-inquiry-form,.trk-inquiry-field,.trk-inquiry-platform-error,.trk-inquiry-store-navigation-row{gap:8px;display:grid}.trk-inquiry-store-navigation-row{grid-template-columns:minmax(0,1fr) auto;align-items:end}.trk-inquiry-mode-group,.trk-inquiry-verification-group{border:0;gap:8px;min-width:0;margin:0;padding:0;display:grid}.trk-inquiry-mode-group legend,.trk-inquiry-verification-group legend,.trk-inquiry-field label{font-size:14px;font-weight:700}.trk-inquiry-mode-options,.trk-inquiry-verification-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.trk-inquiry-verification-options{grid-template-columns:repeat(2,minmax(0,1fr))}.trk-inquiry-mode,.trk-inquiry-verification{text-align:center;overflow-wrap:anywhere;background:#fff;border:2px solid #cbd5e1;border-radius:12px;justify-content:center;align-items:center;min-width:0;min-height:44px;padding:8px;font-size:14px;font-weight:700;line-height:1.35;display:flex}.trk-inquiry-mode input,.trk-inquiry-verification input{opacity:0;position:absolute}.trk-inquiry-field input:focus-visible,.trk-inquiry-field select:focus-visible,.trk-inquiry-platform-error button:focus-visible,.trk-inquiry-back:focus-visible,.trk-inquiry-store-back:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px}.trk-inquiry-mode:has(input:focus-visible){outline:3px solid var(--color-primary);outline-offset:2px}.trk-inquiry-verification:has(input:focus-visible){outline:3px solid var(--color-primary);outline-offset:2px}.trk-inquiry-mode.is-selected,.trk-inquiry-verification.is-selected{border-color:var(--color-primary);background:var(--color-primary-panel);box-shadow:inset 0 0 0 1px var(--color-primary)}.trk-inquiry-card{gap:16px;padding:18px}.trk-inquiry-field input,.trk-inquiry-field select{background:#fff;border:1px solid #94a3b8;border-radius:10px;width:100%;min-height:44px;padding:10px 12px}.trk-inquiry-field select:disabled{color:#64748b;background:#eef3fb;border-style:dashed}.trk-inquiry-hint,.trk-inquiry-privacy{color:#475569;font-size:14px}.trk-inquiry-platform-error{color:#9a3412;background:#fff5f1;border:1px solid #f0c7b7;border-radius:12px;padding:12px}.trk-inquiry-platform-error button,.trk-inquiry-store-back,.trk-inquiry-submit{border-radius:10px;min-height:44px;font-weight:700}.trk-inquiry-platform-error button{color:#7c2d12;background:#fff;border:1px solid #9a3412}.trk-inquiry-store-back{color:var(--color-text);cursor:pointer;white-space:nowrap;background:#fff;border:1px solid #94a3b8;padding:8px 12px}.trk-inquiry-store-back:disabled{color:#64748b;cursor:not-allowed;background:#eef3fb}.trk-inquiry-submit{color:#475569;cursor:not-allowed;background:#cbd5e1;border:1px solid #94a3b8;width:100%}.trk-inquiry-submit:not(:disabled){border-color:var(--color-primary);background:var(--color-primary);color:#fff;cursor:pointer}.trk-inquiry-field input:disabled{color:#64748b;background:#eef3fb}.trk-inquiry-result{color:#334155;overflow-wrap:anywhere;background:#f8fafc;border:1px solid #cbd5e1;border-radius:12px;padding:12px 14px}.trk-inquiry-result:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px}.trk-inquiry-result.is-not-found,.trk-inquiry-result.is-rate-limited,.trk-inquiry-result.is-error{color:#9a3412;background:#fff5f1;border-color:#f0c7b7}.trk-inquiry-result.is-rate-limited{gap:4px;display:grid}.trk-inquiry-result.is-ready,.trk-inquiry-result.is-redirecting{color:#065f46;background:#ecfdf5;border-color:#b7ded8}@media (width<=760px){.public-shell{padding:16px 12px}.trk-phone-shell{border-radius:28px;padding:12px}}@media (width<=419px){.trk-inquiry-shell{padding-left:12px;padding-right:12px}}@media (width>=420px){.trk-inquiry-shell{padding-left:16px;padding-right:16px}}@media (width>=761px){.public-shell{padding:20px 16px}.public-panel{padding:18px}}.trk-teaching-link{color:#0056a6;text-underline-offset:.15em;font-weight:600;text-decoration:underline}.trk-teaching-link:after{content:" ↗"}.trk-teaching-link:focus-visible{outline-offset:3px;outline:2px solid}.trk-teaching-guide{margin:1rem 0}