*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg: #f8f9fa;--color-surface: #ffffff;--color-border: #dee2e6;--color-text: #212529;--color-text-muted: #6c757d;--color-primary: #0d6efd;--color-primary-hover: #0b5ed7;--color-secondary: #6c757d;--color-secondary-hover: #5c636a;--color-valid: #198754;--color-valid-bg: #d1e7dd;--color-warning: #664d03;--color-warning-bg: #fff3cd;--color-invalid: #842029;--color-invalid-bg: #f8d7da;--color-not-found: #084298;--color-not-found-bg: #cfe2ff;--color-down: #664d03;--color-down-bg: #fff3cd;--radius: 8px;--tap-min: 44px;--spacing: 16px}html{font-size:16px;-webkit-text-size-adjust:100%}body{background:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;min-height:100vh}.container{max-width:600px;margin:0 auto;padding:var(--spacing)}header{text-align:center;padding:24px 0 16px}header h1{font-size:1.5rem;font-weight:700;color:var(--color-text)}.subtitle{color:var(--color-text-muted);font-size:.9rem;margin-top:4px}.tab-bar{display:flex;border-bottom:2px solid var(--color-border);margin-bottom:24px;gap:4px}.tab-btn{flex:1;min-height:var(--tap-min);padding:10px 16px;background:none;border:none;border-bottom:3px solid transparent;margin-bottom:-2px;cursor:pointer;font-size:.95rem;font-weight:500;color:var(--color-text-muted);transition:color .15s,border-color .15s;text-align:center}.tab-btn--active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.tab-btn:hover:not(.tab-btn--active){color:var(--color-text)}section{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:var(--spacing)}.form-group{margin-bottom:16px}.form-group label{display:block;font-weight:500;margin-bottom:6px;font-size:.95rem}.required{color:var(--color-invalid)}.optional{color:var(--color-text-muted);font-weight:400;font-size:.85rem}.form-group input{width:100%;min-height:var(--tap-min);padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:1rem;color:var(--color-text);background:var(--color-surface);transition:border-color .15s;-webkit-appearance:none}.form-group input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #0d6efd26}.btn-row{display:flex;gap:8px;margin-bottom:20px}.btn{min-height:var(--tap-min);padding:10px 20px;border:none;border-radius:var(--radius);font-size:.95rem;font-weight:500;cursor:pointer;transition:background .15s,color .15s}.btn--primary{background:var(--color-primary);color:#fff;flex:1}.btn--primary:hover{background:var(--color-primary-hover)}.btn--secondary{background:transparent;color:var(--color-secondary);border:1px solid var(--color-secondary)}.btn--secondary:hover{background:var(--color-secondary);color:#fff}.btn--copy{min-height:32px;padding:4px 10px;font-size:.8rem;background:var(--color-surface);color:var(--color-primary);border:1px solid var(--color-primary);border-radius:4px;margin-left:8px;cursor:pointer;white-space:nowrap}.btn--copy:hover{background:var(--color-primary);color:#fff}.result-region{display:none}.result-region--visible{display:block;margin-top:16px}.badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em;margin-bottom:10px}.badge--valid{background:var(--color-valid-bg);color:var(--color-valid)}.badge--warning{background:var(--color-warning-bg);color:var(--color-warning)}.badge--invalid{background:var(--color-invalid-bg);color:var(--color-invalid)}.badge--not-found{background:var(--color-not-found-bg);color:var(--color-not-found)}.result-message{font-size:.95rem;color:var(--color-text);margin-bottom:12px}.result-count{font-size:.85rem;color:var(--color-text-muted);margin-bottom:12px}.record-card{border:1px solid var(--color-border);border-radius:var(--radius);padding:12px;margin-bottom:12px;background:var(--color-bg)}.record-row{display:flex;align-items:center;padding:6px 0;border-bottom:1px solid var(--color-border);gap:8px;flex-wrap:wrap}.record-row:last-child{border-bottom:none}.record-row--name .record-value{font-weight:600}.record-label{font-size:.8rem;color:var(--color-text-muted);min-width:110px;flex-shrink:0}.record-value{font-size:.9rem;color:var(--color-text);flex:1;word-break:break-word}.pagination{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:16px}.btn--page{min-height:36px;padding:6px 14px;font-size:.875rem}.btn--page:disabled{opacity:.4;cursor:default}.page-info{font-size:.85rem;color:var(--color-text-muted)}.alias-banner{background:#e8f4fd;border:1px solid #bee3f8;border-radius:var(--radius);padding:10px 14px;font-size:.88rem;color:#2b6cb0;margin-bottom:12px;line-height:1.5}footer{text-align:center;padding:20px 0 8px;font-size:.8rem;color:var(--color-text-muted)}.footer-link{color:var(--color-primary);text-decoration:none;margin-left:6px}.footer-link:hover{text-decoration:underline}.help-fab{position:fixed;bottom:24px;right:24px;width:44px;height:44px;border-radius:50%;background:var(--color-primary);color:#fff;border:none;font-size:1.2rem;font-weight:700;cursor:pointer;box-shadow:0 2px 8px #0003;z-index:100;display:flex;align-items:center;justify-content:center;transition:background .15s,transform .15s}.help-fab:hover{background:var(--color-primary-hover);transform:scale(1.05)}.help-overlay{position:fixed;inset:0;background:#0000004d;z-index:200}.help-panel{position:fixed;bottom:0;left:50%;transform:translate(-50%) translateY(100%);width:min(560px,100vw);max-height:80vh;background:var(--color-surface);border-radius:16px 16px 0 0;box-shadow:0 -4px 24px #00000026;z-index:300;display:flex;flex-direction:column;transition:transform .25s ease;overflow:hidden}.help-panel--open{transform:translate(-50%) translateY(0)}.help-panel-header{display:flex;align-items:center;justify-content:space-between;padding:16px 16px 0;flex-shrink:0}.help-tabs{display:flex;gap:4px}.help-tab{padding:6px 16px;border:none;background:none;border-radius:20px;font-size:.9rem;font-weight:500;cursor:pointer;color:var(--color-text-muted);transition:background .15s,color .15s}.help-tab--active{background:var(--color-primary);color:#fff}.help-close{background:none;border:none;font-size:1.1rem;color:var(--color-text-muted);cursor:pointer;padding:4px 8px;border-radius:4px}.help-close:hover{color:var(--color-text);background:var(--color-bg)}.help-panel-body{padding:16px;overflow-y:auto;flex:1}.help-panel-body h3{font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted);margin:16px 0 8px}.help-panel-body h3:first-child{margin-top:0}.help-panel-body p{font-size:.9rem;color:var(--color-text);margin-bottom:10px;line-height:1.55}.help-dl dt{margin-top:10px}.help-dl dd{font-size:.875rem;color:var(--color-text);margin:4px 0 0;padding-left:4px;line-height:1.5}.help-list{font-size:.875rem;color:var(--color-text);padding-left:18px;line-height:1.7;margin-bottom:10px}.help-link{color:var(--color-primary);text-decoration:none}.help-link:hover{text-decoration:underline}.help-more{margin-top:16px;font-size:.875rem;border-top:1px solid var(--color-border);padding-top:12px}.about-brand{display:flex;flex-direction:column;align-items:center;padding:16px 0 20px;border-bottom:1px solid var(--color-border);margin-bottom:16px;gap:4px}.about-logo{font-size:1.4rem;font-weight:800;color:var(--color-primary);letter-spacing:-.02em}.about-product{font-size:1rem;font-weight:600;color:var(--color-text)}.about-version{font-size:.8rem;color:var(--color-text-muted)}.about-desc{font-size:.9rem;color:var(--color-text);line-height:1.55;margin-bottom:16px}.about-legal{font-size:.78rem;color:var(--color-text-muted);line-height:1.6;margin-bottom:12px}.about-attribution{font-size:.8rem;color:var(--color-text-muted);text-align:center;padding-top:8px;border-top:1px solid var(--color-border)}.help-back{display:inline-block;font-size:.875rem;color:var(--color-primary);text-decoration:none;margin-bottom:12px;margin-top:16px}.help-back:hover{text-decoration:underline}.help-page{padding-bottom:40px}.help-section{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:var(--spacing);margin-bottom:16px}.help-section h2{font-size:1rem;font-weight:700;margin-bottom:10px;color:var(--color-text)}.help-section h3{font-size:.875rem;font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;margin:14px 0 6px}.help-section p{font-size:.9rem;color:var(--color-text);line-height:1.6;margin-bottom:8px}.help-steps{font-size:.9rem;color:var(--color-text);padding-left:20px;line-height:1.8;margin-bottom:12px}.help-note{font-size:.82rem;color:var(--color-text-muted);font-style:italic;margin-top:8px}.about-legal-section{background:var(--color-bg)}@media(max-width:420px){.container{padding:12px}header h1{font-size:1.3rem}.btn-row{flex-direction:column}.btn--secondary{flex:none}.record-label{min-width:90px}}