:root{--bg: oklch(97% .006 95);--panel: oklch(99% .003 95);--border: oklch(90% .006 95);--border-card: oklch(91% .006 95);--border-input: oklch(88% .006 95);--text: oklch(22% .02 260);--text-secondary: oklch(50% .02 260);--text-muted: oklch(55% .02 260);--text-label: oklch(45% .02 260);--accent: oklch(52% .16 265);--accent-hover: oklch(44% .17 265);--accent-bg: oklch(94% .03 265);--accent-text: oklch(40% .14 265);--stat-bg: oklch(95% .02 265);--stat-text: oklch(45% .05 265);--diff-amber: oklch(95% .05 45);--diff-match: oklch(97% .006 95);--success-bg: oklch(93% .05 150);--success-text: oklch(38% .1 150);--danger-text: oklch(58% .16 45);--danger-bg: oklch(95% .04 30);--danger-border: oklch(88% .06 30);--sid-color: oklch(45% .15 265);--sid-bg: oklch(94% .03 265);--font-ui: -apple-system, "Segoe UI", system-ui, sans-serif;--font-mono: ui-monospace, Menlo, monospace}*{box-sizing:border-box}body{margin:0;font-family:var(--font-ui);background:var(--bg);color:var(--text)}::selection{background:#c7d8fa}.app{height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:16px;padding:12px 20px;background:var(--panel);border-bottom:1px solid var(--border);flex-shrink:0}.topbar-brand{display:flex;align-items:center;gap:10px}.topbar-logo{width:28px;height:28px;border-radius:8px;background:var(--accent);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px;flex-shrink:0}.topbar-title{font-size:15px;font-weight:600;margin:0}.topbar-divider{width:1px;height:20px;background:var(--border);flex-shrink:0}.topbar-file{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-secondary)}.topbar-file-name{font-family:var(--font-mono)}.topbar-spacer{flex:1}.lang-switch{display:inline-flex;background:#f0eeea;border-radius:8px;padding:3px}.lang-btn{border:none;padding:5px 11px;border-radius:6px;font-size:12.5px;font-weight:600;cursor:pointer;background:transparent;color:var(--text-secondary)}.lang-btn.active{background:var(--panel);color:var(--text)}.upload-btn{position:relative;background:transparent;border:1px solid var(--border-input);color:#282e38;padding:7px 14px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer}.upload-btn:hover{border-color:var(--accent);color:var(--accent)}.upload-btn input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}.stat-bar{display:flex;gap:10px;padding:10px 20px;background:var(--panel);border-bottom:1px solid var(--border);flex-shrink:0}.stat-chip{display:flex;align-items:baseline;gap:6px;background:var(--stat-bg);padding:5px 12px;border-radius:8px}.stat-chip-label{font-size:10px;color:var(--stat-text);text-transform:uppercase;letter-spacing:.04em}.stat-chip-value{font-size:12px;font-weight:600;font-family:var(--font-mono)}.loading-bar{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border)}.loading-bar-track{flex:1;height:3px;background:var(--border);border-radius:2px;overflow:hidden}.loading-bar-fill{height:100%;width:30%;background:var(--accent, oklch(55% .15 150));border-radius:2px;animation:loading-slide 1.2s ease-in-out infinite}@keyframes loading-slide{0%{transform:translate(-100%)}50%{transform:translate(200%)}to{transform:translate(-100%)}}.loading-bar-text{font-size:12px;color:var(--text-muted);white-space:nowrap;font-family:var(--font-mono)}.error{display:flex;align-items:center;gap:12px;background:var(--danger-bg);border-bottom:1px solid var(--danger-border);color:#6c170e;padding:8px 16px;font-size:13px}.error span{flex:1}.error-dismiss{background:none;border:none;color:inherit;font-size:18px;line-height:1;cursor:pointer;padding:0 4px;opacity:.7}.error-dismiss:hover{opacity:1}.error-inline{background:var(--danger-bg);border:1px solid var(--danger-border);color:#6c170e;padding:8px 12px;border-radius:8px;font-size:12px;white-space:pre-wrap}.main{flex:1;display:flex;min-height:0}.tree-pane{width:360px;flex-shrink:0;display:flex;flex-direction:column;border-right:1px solid var(--border);background:var(--panel);overflow:hidden}.detail-pane{flex:1;overflow:auto;padding:24px 28px 60px}.placeholder{color:var(--text-secondary);padding:24px 20px;font-size:14px;line-height:1.6}.search-wrap{display:flex;flex-direction:column;min-height:0;flex:1}.search-box-wrap{padding:14px 14px 10px;flex-shrink:0}.search-box{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--border-input);border-radius:10px;padding:9px 12px}.search-box:focus-within{border-color:var(--accent)}.search-icon{color:var(--text-muted);font-size:14px;flex-shrink:0}.search-box input{flex:1;background:transparent;border:none;outline:none;color:var(--text);font-size:13px;font-family:var(--font-ui)}.search-clear{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:15px;line-height:1;padding:0}.search-clear:hover{color:var(--text)}.search-results{display:flex;flex-direction:column;overflow:auto;padding:0 14px 14px}.search-status{font-size:12px;color:var(--text-secondary);padding:2px 2px 8px}.search-hits{display:flex;flex-direction:column;gap:6px}.search-hit{text-align:left;display:flex;flex-direction:column;gap:3px;background:var(--panel);border:1px solid var(--border-card);border-radius:10px;padding:10px 12px;cursor:pointer;color:var(--text)}.search-hit:hover{border-color:var(--accent)}.search-hit.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.search-hit.selected{background:var(--accent-bg)}.search-hit-top{display:flex;align-items:center;gap:8px}.search-hit-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.search-hit-name{font-weight:600;font-size:13px;font-family:var(--font-mono);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.search-hit-sid{margin-left:auto;font-size:11px;font-family:var(--font-mono);color:var(--sid-color);background:var(--sid-bg);border-radius:5px;padding:1px 6px;flex-shrink:0}.search-hit-breadcrumb{font-size:11.5px;color:var(--text-secondary);padding-left:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.search-mark{background:#c7d8fa;color:inherit;border-radius:2px;padding:0 1px}.search-hit:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}.tree-toolbar{display:flex;align-items:center;gap:6px;padding:0 14px 8px;flex-shrink:0}.tree-tool-btn{background:none;border:1px solid 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var(--accent);outline-offset:-2px}.detail.empty{color:var(--text-secondary);font-size:14px}.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:4px;margin-bottom:16px;font-size:12.5px}.crumb{display:flex;align-items:center;gap:4px}.crumb-btn{background:transparent;border:none;color:var(--text-secondary);font-weight:500;padding:3px 9px;border-radius:6px;cursor:pointer;font-size:12.5px;font-family:var(--font-ui)}.crumb-btn:hover{color:var(--accent)}.crumb-btn.current{background:var(--accent-bg);color:var(--accent-text);font-weight:700}.crumb-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}.crumb-sep{color:#afaeaa}.detail-header{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px}.detail-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px;font-weight:700}.detail-title-block{flex:1;min-width:0}.detail-title-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.detail-title-row h2{margin:0;font-size:20px;font-weight:700;font-family:var(--font-mono)}.sid-chip{font-size:12px;font-weight:700;font-family:var(--font-mono);color:var(--sid-color);background:var(--sid-bg);border-radius:6px;padding:2px 8px}.type-pill{font-size:11.5px;font-weight:600;padding:2px 9px;border-radius:20px}.detail-desc{margin:6px 0 0;font-size:13.5px;color:var(--text-label);max-width:640px;line-height:1.5}.attr-section{margin-bottom:24px}.section-label{font-size:12px;font-weight:600;color:var(--text-label);text-transform:uppercase;letter-spacing:.04em;margin-bottom:10px}.attr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;max-width:760px}.attr-card{background:var(--panel);border:1px solid var(--border-card);border-radius:10px;padding:10px 12px}.attr-card-key{font-size:11px;color:#626975;margin-bottom:3px}.attr-card-val{font-size:13px;font-family:var(--font-mono);font-weight:600;word-break:break-word}.attr-pre{margin:0;font:inherit;white-space:pre-wrap}.attr-table{border-collapse:collapse;width:100%;max-width:640px;font-size:13px}.attr-table th,.attr-table td{text-align:left;padding:6px 12px;border-bottom:1px solid var(--border);vertical-align:top}.attr-table th{color:var(--text-label);font-weight:500;width:160px}.attr-table td{font-family:var(--font-mono);white-space:pre-line}.decode-table thead th{font-size:11px;text-transform:uppercase;letter-spacing:.04em;font-weight:500;color:var(--text-label)}.decode-table th.offset-col,.decode-table td.offset-col{width:88px;color:var(--text-muted);white-space:nowrap;font-size:12px}.attr-table td .attr-val{margin-right:8px}.attr-table td .copy-btn{opacity:0;vertical-align:middle}.attr-table tr:hover td .copy-btn,.attr-table td .copy-btn.copied{opacity:1}.info-card{max-width:640px;background:var(--panel);border:1px solid var(--border-card);border-radius:12px;padding:16px 18px;font-size:13px;color:var(--text-label);line-height:1.6}.detail-id{display:flex;align-items:center;gap:8px;margin-top:20px}.detail-id .muted{word-break:break-all}.muted{color:var(--text-muted);font-size:12px}.compare-card{background:var(--panel);border:1px solid var(--border-card);border-radius:12px;padding:14px 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14px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;flex-shrink:0}button.btn-primary:hover{background:var(--accent-hover)}button.btn-primary:disabled{opacity:.5;cursor:default}.compare-picker-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.compare-picker-head-title{font-size:13px;font-weight:600}.compare-picker-cancel{background:none;border:none;color:var(--text-secondary);font-size:13px;cursor:pointer}.compare-picker-list{display:flex;flex-direction:column;gap:6px;max-height:260px;overflow:auto}.compare-candidate{text-align:left;display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:8px 12px;cursor:pointer;color:var(--text)}.compare-candidate:hover{border-color:var(--accent)}.compare-candidate-name{font-weight:600;font-size:13px;font-family:var(--font-mono)}.compare-candidate-sid{font-size:11px;font-family:var(--font-mono);color:var(--sid-color);background:var(--sid-bg);border-radius:5px;padding:1px 6px}.compare-candidate-breadcrumb{margin-left:auto;font-size:11.5px;color:var(--text-secondary)}.compare-empty{font-size:12.5px;color:var(--text-muted);padding:8px 2px}.compare-result-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.compare-result-names{display:flex;align-items:center;gap:8px;font-size:13px}.compare-result-name{font-weight:700;font-family:var(--font-mono)}.compare-result-arrow{color:var(--text-muted)}.compare-result-actions{display:flex;gap:8px}.compare-change-btn{background:none;border:1px solid var(--border-input);color:var(--text-label);font-size:12px;padding:5px 11px;border-radius:7px;cursor:pointer}.compare-change-btn:hover{border-color:var(--accent)}.compare-clear-btn{background:none;border:none;color:var(--text-secondary);font-size:12px;cursor:pointer}.compare-rows{display:flex;flex-direction:column;gap:6px}.compare-row{display:grid;grid-template-columns:110px 1fr 1fr;gap:10px;padding:8px 10px;border-radius:8px;font-size:12.5px}.compare-row-key{color:var(--text-secondary);font-weight:600}.compare-row-val{font-family:var(--font-mono);word-break:break-word}.compare{margin:12px 0 4px;border:1px solid var(--border-card);border-radius:12px;background:var(--panel);padding:14px 16px;max-width:760px}.compare-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.compare-head h3{margin:0;font-size:15px}.compare-cols{display:flex;gap:12px;margin-bottom:12px;font-size:12px}.compare-col{flex:1;padding:5px 10px;border-radius:5px;background:var(--bg);border:1px solid var(--border);font-weight:600;font-family:var(--font-mono);overflow-wrap:anywhere}.compare-left{border-left:3px solid var(--accent)}.compare-right{border-left:3px solid var(--danger-text)}.compare-section{margin-top:14px}.compare-section h4{margin:0 0 6px;font-size:13px;display:flex;align-items:baseline;gap:8px}.compare-count{font-weight:400}.compare-table{max-width:none;table-layout:fixed}.compare-table thead th{font-size:11px;text-transform:uppercase;letter-spacing:.04em;width:auto}.compare-table th.compare-name-col{width:32%}.compare-table td,.compare-table th{word-break:break-word}.compare-val{white-space:pre-wrap;font-family:var(--font-mono);font-size:12px}.compare-table tr.diff-same th{color:var(--text-muted)}.compare-table tr.diff-different td,.compare-table tr.diff-different th{background:var(--diff-amber)}.compare-table tr.diff-left-only td,.compare-table tr.diff-left-only th{background:#e7efff;background:oklch(95% .03 265)}.compare-table tr.diff-right-only td,.compare-table tr.diff-right-only th{background:#ffe8e3;background:oklch(95% .04 30)}.compare-table tr.diff-different th{box-shadow:inset 3px 0 #d9906f}.compare-table tr.diff-left-only th{box-shadow:inset 3px 0 0 var(--accent)}.compare-table tr.diff-right-only th{box-shadow:inset 3px 0 0 var(--danger-text)}.diff-badge{display:inline-block;margin-left:6px;padding:1px 6px;border-radius:999px;font-size:10px;font-weight:600;letter-spacing:.02em;vertical-align:middle;color:#fff}.diff-badge.diff-different{background:#d9906f}.diff-badge.diff-left-only{background:var(--accent)}.diff-badge.diff-right-only{background:var(--danger-text)}.codec-card{max-width:760px;background:var(--panel);border:1px solid var(--border-card);border-radius:14px;padding:18px 20px 20px}.codec-title{font-size:13px;font-weight:700;margin-bottom:12px}.segmented{display:inline-flex;background:#f0eeea;border-radius:9px;padding:3px}.segmented-btn{border:none;padding:6px 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var(--border);border-radius:8px;padding:8px 12px 12px;margin:0;display:flex;flex-direction:column;gap:10px}.struct>legend{display:flex;align-items:baseline;gap:8px;padding:0 6px;font-size:13px}.list-item{border:1px dashed var(--border);border-radius:8px;padding:8px 12px 12px;display:flex;flex-direction:column;gap:10px}.list-item-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px;font-size:12px}.fixed-row{flex-direction:row;align-items:baseline;gap:8px;font-size:12px;color:var(--text-muted)}.fixed-row .pname{color:var(--text-muted)}.ptype{font-family:var(--font-mono);color:var(--text-muted);font-size:12px}.pnote{color:var(--text)}.pfixed{font-family:var(--font-mono);font-size:12px;color:var(--accent-text);background:var(--accent-bg);border:1px solid oklch(88% .03 265);border-radius:4px;padding:0 6px}.btn-outline{background:none;border:1px solid var(--border-input);color:var(--text-label);padding:8px 14px;border-radius:8px;font-size:12.5px;font-weight:600;cursor:pointer}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}.encode-result{margin-top:14px;background:#e8effc;border:1px solid oklch(88% .03 265);border-radius:10px;padding:14px 16px}.encode-result-label{font-size:11px;color:var(--stat-text);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}.encode-result-hex{font-size:16px;font-family:var(--font-mono);font-weight:600;letter-spacing:.03em;display:block;margin-bottom:10px;word-break:break-all}.encode-result-actions{display:flex;gap:10px;flex-wrap:wrap}.result-action-btn{background:#fff;border:1px solid oklch(85% .03 265);color:#2d457d;font-size:12px;padding:5px 12px;border-radius:7px;cursor:pointer}.result-action-btn:hover{border-color:var(--accent)}.result-action-btn.copied{color:var(--success-text);border-color:var(--success-text)}.result-link-btn{background:none;border:none;color:var(--accent);font-size:12px;font-weight:600;cursor:pointer}.result-link-btn:hover{text-decoration:underline}.hex-preview{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px;font-size:11.5px;color:var(--text-muted);margin-top:5px}.hex-preview code{font-family:var(--font-mono);color:var(--accent);word-break:break-all}.hex-warn{color:var(--danger-text);font-size:11px}.decode-label{font-size:12.5px;color:var(--text-label)}.decoded{background:var(--panel);border:1px solid var(--border-card);border-radius:10px;padding:14px 16px}.decoded-header{display:flex;align-items:center;gap:8px;margin-bottom:10px}.decoded-badge{font-size:11.5px;font-weight:600;padding:2px 9px;border-radius:20px}.decoded-badge-positive{background:var(--success-bg);color:var(--success-text)}.decoded-badge-negative{background:#ffdfd9;background:oklch(93% .05 30);color:#901308}.decoded-svc{font-family:var(--font-mono);font-weight:600;font-size:13px}.decoded-params{display:flex;flex-direction:column;gap:8px}.decoded-param-row{display:flex;justify-content:space-between;gap:12px;padding:8px 10px;background:var(--bg);border-radius:8px;font-size:13px}.decoded-param-name{color:var(--text-label)}.decoded-param-value{font-family:var(--font-mono);font-weight:600}.encode-hint{background:#fff2ec;background:oklch(97% .03 45);border:1px solid oklch(90% .06 45);color:var(--text);border-radius:8px;padding:8px 10px;font-size:12px}.pdu-actions{display:flex;align-items:center;gap:12px}.decode-actions{flex-wrap:wrap;gap:8px 12px;margin-top:4px}button.primary{background:var(--accent);color:#fff;border:none;padding:10px 20px;border-radius:9px;font-size:13.5px;font-weight:700;cursor:pointer}button.primary:hover{background:var(--accent-hover)}button.primary:disabled{opacity:.5;cursor:default}button.link{background:none;border:none;color:var(--accent);cursor:pointer;font-size:12px;padding:0}button.link:hover{text-decoration:underline}.copy-btn{background:none;border:1px solid var(--border-card);color:var(--text-muted);border-radius:6px;padding:2px 8px;font-size:11px;cursor:pointer;white-space:nowrap}.copy-btn:hover{color:var(--accent);border-color:var(--accent)}.copy-btn.copied{color:var(--success-text);border-color:var(--success-text)}.drop-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:flex;align-items:center;justify-content:center;background:#f6f5f1cc;border:3px dashed var(--accent);color:var(--text);font-size:18px;font-weight:600;pointer-events:none}@media (max-width: 720px){.main{flex-direction:column}.tree-pane{width:auto!important;max-height:45vh;border-right:none;border-bottom:1px solid var(--border)}.detail-pane{padding:16px}.stat-bar{gap:8px;flex-wrap:wrap}.topbar{gap:10px;padding:10px 14px}}