@charset "UTF-8";
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*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:4px}button,input,textarea{font:inherit}button,a,input,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button,input,textarea{border:1px solid var(--line);border-radius:5px;background:var(--white);color:var(--ink)}button{min-height:44px;padding:10px 16px;font-weight:650}button:hover:not(:disabled){background:#e9eddf}button.primary,.hero-button{background:var(--ink);color:white;border-color:var(--ink)}button.primary:hover{background:#265b4b}input:not([type=checkbox]),textarea{padding:13px;width:100%;min-width:0}textarea{resize:vertical}input[type=file]{padding:10px;font-size:14px}input[type=file]::file-selector-button{min-height:36px;border:1px solid var(--line);padding:6px 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var(--line);gap:16px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:21px;font-weight:750}.brand small{font-family:monospace;font-weight:500;font-size:10px;letter-spacing:1.4px;margin-top:2px}.brand-mark{display:grid;place-items:center;width:45px;height:45px;font-size:36px;color:var(--paper);background:var(--ink);border-radius:50%}.back{font-size:13px;text-decoration:none;white-space:nowrap;min-height:44px;display:flex;align-items:center}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:70px;padding:64px 0 72px;align-items:center}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.7px;margin-bottom:22px}.intro{font-size:15px;color:var(--muted);line-height:1.9}.hero-button{display:inline-flex;align-items:center;gap:44px;padding:14px 18px;text-decoration:none;border-radius:4px;font-size:14px;margin:7px 0 20px}.privacy-tag{font-size:11px;color:var(--muted);margin-bottom:0}.privacy-tag 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var(--ink)}.tool-panel{padding:35px;background:var(--white);border:1px solid var(--line)}[hidden]{display:none!important}.tool-layout{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(240px,1fr);gap:40px}.tool-kicker{font:11px monospace;letter-spacing:1px;color:#667867;margin-bottom:16px}.muted{color:var(--muted);font-size:14px;margin-bottom:26px}.input-row{display:flex;gap:10px}.input-row .primary{white-space:nowrap;font-size:13px}.input-row+small{margin-top:8px}.status{font-size:13px;line-height:1.7;min-height:22px;overflow-wrap:anywhere;margin:12px 0;color:#385e44}.status.error{color:#a23b20}.command-box{padding:20px;background:#eef1e5;border:1px solid #dce2cf;border-radius:5px}.command-box>div{display:flex;flex-wrap:wrap;gap:5px 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.lead-url{display:block;font:11px/1.7 monospace;color:var(--muted);overflow-wrap:anywhere;margin:10px 0}.lead-card a{display:inline-flex;min-height:36px;align-items:center;font-size:12px}.lead-card small{font-size:10px}.small-note{font-size:11px;line-height:1.8;color:var(--muted);margin-bottom:0}.file-drop{border:1px dashed #98ac96;background:#f5f7ef;padding:24px;border-radius:5px}.file-drop>span{font-size:32px;display:block;margin-bottom:12px}.file-drop small{margin-top:8px}.facts{margin:18px 0 24px;font-size:13px}.facts>div{display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;padding:12px 0;border-bottom:1px solid #e5e8de}.facts dt{color:var(--muted);overflow-wrap:anywhere}.facts dd{margin:0;overflow-wrap:anywhere;white-space:pre-wrap;font-family:ui-monospace,monospace;line-height:1.6}.check{display:flex;gap:10px;align-items:center;font-weight:500;font-size:12px;margin:20px 0 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auto;font-family:system-ui;font-size:13px}footer{display:flex;align-items:center;justify-content:space-between;gap:18px;border-top:1px solid var(--line);padding-top:25px;padding-bottom:30px;font-size:10px;color:var(--muted)}footer p{margin:0}footer a{min-height:36px;display:flex;align-items:center}.sr-only,.skip:not(:focus){position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip:focus{position:fixed;z-index:10;top:10px;left:10px;padding:12px;background:var(--white)}
@media(max-width:900px){main,.site-header,footer{padding-left:24px;padding-right:24px}.hero{gap:35px}.specimen{padding:18px}.tool-layout{grid-template-columns:minmax(0,1.6fr) minmax(200px,1fr);gap:24px}.tool-panel{padding:24px}.input-row{flex-wrap:wrap}.input-row input{flex-basis:100%}.aside-card{padding:18px}.closing{gap:15px}.closing p{font-size:11px}}
@media(max-width:650px){main,.site-header,footer{padding-left:18px;padding-right:18px}.site-header{min-height:83px}.brand{font-size:18px;gap:8px}.brand-mark{width:36px;height:36px;font-size:30px}.brand small{font-size:8px}.back{font-size:11px}.hero{padding:42px 0 45px;grid-template-columns:1fr;gap:32px}h1{font-size:39px;letter-spacing:-1.5px}.hero .eyebrow{font-size:9px;letter-spacing:1px}.intro{font-size:14px}.intro br{display:none}.specimen{display:none}.section-heading{align-items:center;margin-bottom:22px;gap:12px}.section-heading .eyebrow{font-size:8px;letter-spacing:1px}h2{font-size:21px;line-height:1.4}.local-badge{font-size:10px}.tabs button{padding:14px 5px;justify-content:center;gap:0;font-size:0}.tabs button span{font-size:12px}.tool-panel{padding:22px 16px}.tool-layout{grid-template-columns:minmax(0,1fr);gap:24px}h3{font-size:23px}.muted{font-size:13px}.input-row{gap:8px}.input-row .primary{width:100%}.aside-card{padding:20px}.lead-grid,.source-grid{grid-template-columns:1fr}.results-heading{align-items:flex-start}.results-heading h4{font-size:14px;padding-top:10px}.results-heading button{font-size:11px;padding:8px}.lead-top span{font-size:10px}.facts>div{grid-template-columns:90px minmax(0,1fr);gap:12px;font-size:12px}.closing{flex-wrap:wrap;justify-content:space-between;gap:12px;padding:28px 0}.closing p{flex-basis:100%;text-align:center;margin:6px 0 0}.source-grid article{padding:20px}footer{flex-wrap:wrap;justify-content:space-between;padding-top:20px;padding-bottom:20px}footer p{order:3;width:100%}.file-drop{padding:18px}.command-box{padding:16px}.privacy-tag{font-size:10px}}
@media(prefers-reduced-motion:no-preference){button,a{transition:background-color .15s,color .15s}html{scroll-behavior:smooth}}
/* Mainland mobile workflow: the working surface comes before technical tools. */
.cn-hero{display:grid;grid-template-columns:1.5fr 1fr;gap:42px;padding:42px 0 38px;align-items:center}.cn-hero h1{font-size:clamp(30px,4vw,49px);letter-spacing:-1px;margin-bottom:18px}.cn-hero .eyebrow{margin-bottom:14px}.quick-note{padding:24px;border-left:3px solid var(--ink);background:#e8eddf;border-radius:0 6px 6px 0}.quick-note>span{display:block;font-size:12px;margin-bottom:14px;color:var(--muted)}.quick-note strong{display:block;font-size:18px;line-height:1.6}.quick-note p{font-size:13px;margin:12px 0 0}.cn-tabs{grid-template-columns:repeat(6,minmax(0,1fr))}.cn-tabs button{justify-content:center;padding:16px 6px;min-height:52px}.cn-tabs button span{font-size:14px}.panel-title{font-size:25px;line-height:1.45;margin-bottom:10px;letter-spacing:-.5px}.tool-panel .aside-card h3{font-size:18px}.inspection-results{display:grid;gap:14px}.inspection-card{border:1px solid var(--line);border-radius:6px;padding:20px;overflow-wrap:anywhere;min-width:0}.inspection-card h3{font-family:ui-monospace,monospace;font-size:20px;letter-spacing:0;margin:8px 0 12px;overflow-wrap:anywhere}.inspection-card .card-label{font-size:12px;color:var(--muted)}.inspection-card .readable-url{font:12px/1.8 ui-monospace,monospace;overflow-wrap:anywhere;color:var(--muted)}.inspection-card ul{padding-left:20px;font-size:13px;line-height:1.8;color:#835122;margin-bottom:0}.inspection-card .copy-domain{margin-top:14px;font-size:13px}.advanced-details{border-top:1px solid var(--line);margin-top:28px;padding-top:20px}.advanced-details summary{cursor:pointer;min-height:48px;font-weight:650;padding:10px 0;line-height:1.6}.advanced-content{padding:12px 0}.official-links{display:grid;gap:12px;margin:20px 0}.official-links a{display:block;padding:16px;border:1px solid var(--line);border-radius:5px;text-decoration:none;min-width:0;overflow-wrap:anywhere}.official-links a strong,.official-links a span{display:block;font-size:14px;line-height:1.6}.official-links a span{font-size:12px;color:var(--muted);margin-top:7px}.official-links a:hover{background:#f0f4e8}.checklist{padding-left:22px;font-size:13px;line-height:1.9}.checklist li+li{margin-top:12px}#qr-text{overflow-wrap:anywhere;font-family:ui-monospace,monospace}#business-output{font-size:14px;line-height:1.8}#business-output p:last-child{margin-bottom:0}textarea,input:not([type=checkbox]){font-size:16px}button{min-height:44px}input[type=file]::file-selector-button{min-height:44px}.file-drop input{max-width:100%}
@media(max-width:800px){.cn-hero{grid-template-columns:1fr;gap:18px}.quick-note{display:none}.cn-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.cn-tabs button:nth-child(4){border-left:1px solid var(--line)}.cn-tabs button{border-bottom:1px solid var(--line)}.cn-tabs button:nth-child(n+4){border-bottom:none}.cn-hero{padding:28px 0 26px}.cn-hero h1{font-size:33px;margin-bottom:12px}.cn-hero .intro{font-size:14px;line-height:1.75;margin-bottom:14px}.cn-hero .intro br{display:none}.cn-hero .privacy-tag{font-size:11px}.panel-title{font-size:23px}}
@media(max-width:400px){main,.site-header,footer{padding-left:12px;padding-right:12px}.cn-hero h1{font-size:30px}.tool-panel{padding:20px 13px}.cn-tabs button span{font-size:13px}.brand{font-size:17px}.inspection-card{padding:15px}.button-row button{flex-grow:1}.facts>div{grid-template-columns:76px minmax(0,1fr);gap:8px}.site-header{gap:8px}.back{font-size:11px}}

select{font:inherit;font-size:16px;min-height:48px;padding:10px 12px;max-width:100%;width:100%;background:var(--white);color:var(--ink);border:1px solid var(--line);border-radius:5px;margin-bottom:18px;touch-action:manipulation}.lead-card small{font-size:12px}.lead-card a{min-height:44px;font-size:13px}
/* Evidence-first investigation workspace. */
.case-tabs{grid-template-columns:repeat(7,minmax(0,1fr))}.case-heading{display:flex;gap:20px;align-items:start;justify-content:space-between}.case-heading>div{min-width:0}.case-heading>button{white-space:nowrap;font-size:13px}.case-heading .muted{margin-bottom:16px}.case-storage{background:#eef2e6;border:1px solid var(--line);border-radius:6px;padding:16px;font-size:13px;line-height:1.7}.case-storage .button-row{font-size:12px}.case-storage summary{cursor:pointer;min-height:44px;padding-top:13px;font-weight:650}.case-storage details p{margin:10px 0 16px}.case-storage label{margin-top:12px}.case-section{padding:26px 0;border-top:1px solid var(--line);margin-top:24px;min-width:0}.case-section h3{font-size:22px;line-height:1.5}.step-number{display:inline-grid;place-items:center;background:var(--ink);color:white;border-radius:50%;width:28px;height:28px;font-size:14px;margin-right:8px;vertical-align:2px}.case-section label{margin-top:16px}.case-section form>button{margin-top:14px}.case-section-heading{display:flex;align-items:start;justify-content:space-between;gap:12px}.case-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.case-form-grid select{margin-bottom:0}.evidence-editor{border:1px solid var(--line);border-radius:6px;padding:16px;margin:20px 0;background:#f8f9f2}.evidence-editor>summary{cursor:pointer;font-size:15px;font-weight:650;min-height:30px}.evidence-list,.hypothesis-list{display:grid;gap:16px}.evidence-card,.hypothesis-card{border:1px solid var(--line);border-radius:6px;padding:20px;overflow-wrap:anywhere;min-width:0}.evidence-card header,.hypothesis-card header{display:flex;gap:12px;justify-content:space-between;align-items:start}.evidence-card h4,.hypothesis-card h4{margin-bottom:12px;font-size:17px;line-height:1.65}.evidence-card .observation{white-space:pre-wrap;font-size:15px;line-height:1.8}.evidence-label{font-size:11px;padding:3px 7px;border-radius:4px;background:#eef1e7;line-height:1.6;flex:none}.evidence-label.inference{background:#f7e9d0;color:#875526}.evidence-label.statement{background:#e8eef4;color:#466078}.evidence-meta{font-size:12px;color:var(--muted);line-height:1.8}.evidence-meta a{overflow-wrap:anywhere}.interpretation{border-left:3px solid #bd8b4f;padding:10px 14px;background:#faf2e4;font-size:13px;white-space:pre-wrap}.record-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.record-actions button{font-size:12px;min-height:44px}.case-timeline{list-style:none;padding:0;margin:22px 0}.case-timeline li{padding:2px 0 20px 20px;border-left:2px solid #a1b19a;margin-left:5px;overflow-wrap:anywhere}.case-timeline time{display:block;font-size:12px;font-weight:700;color:#48633e}.case-timeline p{font-size:14px;margin:6px 0 0}.undated-list{font-size:13px;line-height:1.8;color:var(--muted);overflow-wrap:anywhere}.hypothesis-card .support-refute{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:16px 0}.support-refute>div{padding:14px;background:#f1f4e9;border-radius:5px;min-width:0}.support-refute>div+div{background:#faf0e3}.support-refute strong{font-size:13px}.support-refute p,.support-refute li{font-size:12px;line-height:1.8;white-space:pre-wrap}.support-refute ul{padding-left:18px;margin:8px 0}.hypothesis-gaps{font-size:12px;line-height:1.8;color:#795421;padding-left:20px}.hypothesis-linker{display:flex;align-items:end;gap:10px;flex-wrap:wrap}.hypothesis-linker>div{flex:1;min-width:160px}.hypothesis-linker label{font-size:12px}.hypothesis-linker select{margin-bottom:0}.hypothesis-linker button{font-size:12px}.next-steps{padding-left:22px;font-size:14px;line-height:1.8}.next-steps li{margin:12px 0}.case-next{background:#f0f4e8;border:1px solid var(--line);border-radius:6px;padding:22px}.case-empty{padding:18px;color:var(--muted);border:1px dashed var(--line);border-radius:5px;font-size:13px;line-height:1.8;margin:14px 0}.record-actions .danger{color:#954327}.case-note{font-size:12px;color:var(--muted);line-height:1.8;margin:8px 0}.case-section input[type=date]{min-height:48px;width:100%;min-width:0}.case-section input[type=hidden]{display:none}
@media(max-width:800px){.case-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.case-tabs button:first-child{grid-column:1/-1;background:#e8eddf}.case-tabs button:nth-child(4){border-left:none}.case-tabs button:nth-child(2),.case-tabs button:nth-child(5){border-left:1px solid var(--line)}.case-tabs button:nth-child(-n+4){border-bottom:1px solid var(--line)}.case-heading{display:block}.case-heading>button{margin-bottom:18px}.case-form-grid{grid-template-columns:1fr;gap:0}}
@media(max-width:650px){.case-section{padding-top:22px;margin-top:20px}.case-section h3{font-size:19px}.case-section-heading{align-items:center}.case-storage{padding:14px}.case-storage .button-row button{flex:1 1 40%;padding:9px}.evidence-editor{padding:13px}.evidence-card,.hypothesis-card{padding:15px}.hypothesis-card .support-refute{grid-template-columns:1fr;gap:10px}.evidence-card header,.hypothesis-card header{flex-wrap:wrap;gap:4px}.hypothesis-linker>div{min-width:0;flex-basis:100%}.hypothesis-linker button{width:100%}.case-next{padding:16px}.case-section .local-badge{font-size:10px}.evidence-label{font-size:11px}}

.detective-contact{flex-basis:100%;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.detective-contact button{font-size:12px;min-height:44px}.detective-contact #copy-wechat-status{flex-basis:100%;min-height:1.5em}