* { box-sizing: border-box; }
    body { margin: 0; font-family: -apple-system, "PingFang SC", "Microsoft YaHei", Roboto, Arial, sans-serif; background: #eef2f7; color: #1f2430; font-size: 15px; }
    .pc-wrap { max-width: 860px; margin: 0 auto; padding: 18px 16px 48px; }
    .pc-hero { text-align: center; padding: 22px 18px; border-radius: 16px; color: #fff; background: linear-gradient(135deg,#7c3aed,#4f46e5); margin-bottom: 16px; }
    .pc-hero h1 { margin: 0 0 4px; font-size: 21px; }
    .pc-hero p { margin: 0; opacity: .88; font-size: 13px; }
    .pc-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 14px; padding: 16px; box-shadow: 0 1px 3px rgba(16,24,40,.08); margin: 14px 0; }
    .pc-field { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 600; margin-bottom: 12px; }
    .pc-field input, .pc-field select { padding: 11px; border: 1px solid #e5e7eb; border-radius: 9px; font-size: 16px; font-family: inherit; width: 100%; }
    .pc-field .hint { font-size: 11px; color: #94a3b8; font-weight: 400; }
    .pc-link-intel { border: 1px solid #c7d2fe; background: #f8faff; border-radius: 12px; padding: 14px; margin-bottom: 16px; }
    .pc-link-intel h3 { margin: 0 0 12px; font-size: 16px; color: #3730a3; }
    .pc-inline { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
    .pc-mini-btn { border: 0; border-radius: 9px; padding: 0 14px; background: #4f46e5; color: #fff; font-weight: 700; cursor: pointer; }
    .pc-image-preview img { width: 112px; height: 112px; object-fit: cover; border-radius: 10px; border: 1px solid #e2e8f0; margin-bottom: 10px; }
    .pc-paste-fallback { margin: 4px 0 12px; color: #4338ca; font-size: 13px; }
    .pc-paste-fallback summary { cursor: pointer; font-weight: 700; margin-bottom: 8px; }
    .pc-paste-fallback textarea { width: 100%; padding: 10px; border: 1px solid #cbd5e1; border-radius: 9px; resize: vertical; font-family: inherit; margin-bottom: 8px; }
    .pc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .pc-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
    @media (max-width: 600px) { .pc-grid, .pc-grid-3, .pc-inline { grid-template-columns: 1fr; } .pc-mini-btn { padding: 10px; } }
    .pc-btn { width: 100%; padding: 15px; font-size: 18px; font-weight: 800; border: none; border-radius: 12px; background: #4f46e5; color: #fff; cursor: pointer; margin-top: 4px; }
    .pc-btn:active { background: #4338ca; }
    .pc-btn.secondary { background: #64748b; font-size: 15px; padding: 11px; }
    .pc-toggle { cursor: pointer; color: #4f46e5; font-size: 14px; font-weight: 600; user-select: none; padding: 8px 0; }
    .pc-advanced { display: none; }
    .pc-advanced.open { display: block; }
    .pc-verdict { margin: 16px 0; padding: 20px; border-radius: 14px; text-align: center; font-size: 20px; font-weight: 800; display: none; }
    .pc-verdict.buy_test { background: #dcfce7; color: #15803d; display: block; }
    .pc-verdict.negotiate { background: #fef3c7; color: #b45309; display: block; }
    .pc-verdict.find_lower_cost { background: #fee2e2; color: #b91c1c; display: block; }
    .pc-verdict.reject { background: #fee2e2; color: #991b1b; display: block; }
    .pc-verdict.needs_data { background: #f1f5f9; color: #475569; display: block; }
    .pc-verdict small { display: block; font-size: 13px; font-weight: 600; margin-top: 6px; opacity: .85; }
    .pc-top { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
    .pc-top-item { background: #f8fafc; border-radius: 10px; padding: 10px 12px; text-align: center; }
    .pc-top-item .label { font-size: 11px; color: #64748b; font-weight: 600; }
    .pc-top-item .value { font-size: 18px; font-weight: 800; color: #0f172a; margin-top: 2px; }
    .pc-top-item .value.green { color: #15803d; }
    .pc-top-item .value.red { color: #dc2626; }
    .pc-table { width: 100%; border-collapse: collapse; font-size: 13px; }
    .pc-table th { text-align: left; padding: 8px 6px; color: #64748b; font-weight: 600; border-bottom: 2px solid #e2e8f0; }
    .pc-table td { padding: 8px 6px; border-bottom: 1px solid #f1f5f9; }
    .pc-table tr.best td { background: #f0fdf4; font-weight: 700; }
    .pc-badge { display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 11px; font-weight: 700; }
    .pc-badge.green { background: #dcfce7; color: #15803d; }
    .pc-badge.yellow { background: #fef3c7; color: #b45309; }
    .pc-badge.red { background: #fee2e2; color: #b91c1c; }
    .pc-badge.gray { background: #f1f5f9; color: #64748b; }
    .pc-detail { margin: 8px 0; padding: 10px; background: #f8fafc; border-radius: 8px; font-size: 13px; }
    .pc-detail-row { display: flex; justify-content: space-between; padding: 3px 0; }
    .pc-detail-row .label { color: #64748b; }
    .pc-detail-row .value { font-weight: 600; }
    .pc-warn { font-size: 12px; color: #b45309; margin: 4px 0; padding: 4px 8px; background: #fffbeb; border-radius: 6px; }
    .pc-warn.confidence { color: #64748b; background: #f1f5f9; }
    .pc-precision { margin: 10px 0; padding: 10px 14px; border-radius: 10px; font-size: 13px; font-weight: 700; text-align: center; background: #f1f5f9; color: #475569; }
    .pc-precision.calibrated { background: #dcfce7; color: #15803d; }
    .pc-precision small { display: block; font-weight: 500; font-size: 11px; margin-top: 3px; color: #94a3b8; }
    .pc-tiers { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
    .pc-tier { border: 1px solid #e5e7eb; border-radius: 10px; padding: 8px 10px; font-size: 12px; }
    .pc-tier .t-name { font-weight: 800; font-size: 13px; margin-bottom: 2px; }
    .pc-tier.available { background: #f8fafc; border-color: #cbd5e1; }
    .pc-tier.unavailable { background: #fffbeb; border-color: #fde68a; opacity: .85; }
    .pc-tier small { color: #94a3b8; }
    .pc-why { font-size: 13px; color: #334155; line-height: 1.7; margin: 8px 0; }
    .pc-why li { margin-bottom: 4px; }
    .pc-scenario { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin: 8px 0; }
    .pc-scenario-item { text-align: center; padding: 8px; border-radius: 8px; font-size: 12px; }
    .pc-scenario-item.conservative { background: #fef3c7; }
    .pc-scenario-item.baseline { background: #f0fdf4; }
    .pc-scenario-item.optimistic { background: #eff6ff; }
    .pc-scenario-item .val { font-weight: 800; font-size: 14px; }
    .pc-expand { cursor: pointer; color: #4f46e5; font-size: 13px; font-weight: 600; user-select: none; padding: 4px 0; }
    .pc-expand-content { display: none; margin-top: 8px; }
    .pc-expand-content.open { display: block; }
    .pc-row-toggle { cursor: pointer; display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; border-radius: 4px; background: #e0e7ff; color: #4f46e5; font-size: 13px; font-weight: 700; user-select: none; margin-right: 6px; }
    .pc-row-toggle.open { background: #4f46e5; color: #fff; }
    .pc-expand-row td { padding: 0; background: #f8fafc; border-bottom: 1px solid #e2e8f0; }
    .pc-expand-detail { padding: 10px 12px; font-size: 12px; }
    .pc-link { display: block; text-align: center; margin-top: 14px; color: #4f46e5; font-weight: 600; text-decoration: none; }
    .login-card { background: #fff; border-radius: 16px; padding: 26px 22px; box-shadow: 0 20px 50px rgba(0,0,0,.18); margin-top: 40px; }
    .login-card h2 { margin: 0 0 14px; font-size: 19px; }
    .login-card label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; margin-bottom: 12px; font-size: 13px; }
    .login-card input { padding: 11px 12px; border: 1px solid #e5e7eb; border-radius: 9px; font-size: 15px; }
    .hidden { display: none !important; }
    .msg { color: #dc2626; font-size: 13px; min-height: 16px; margin-top: 6px; }
    .pc-loading { text-align: center; padding: 40px; color: #64748b; }