.qc-head h1{font-size:clamp(40px,4.8vw,68px)}
.qc-head p{max-width:760px}
.qc-assurances{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:36px 0;border-bottom:1px solid var(--line)}
.qc-assurances>div{padding:0 28px;border-left:1px solid var(--line)}
.qc-assurances>div:first-child{padding-left:0;border-left:0}
.qc-assurances strong{display:block;font-size:24px;line-height:1.35;font-weight:600;color:var(--ink)}
.qc-assurances p{font-size:1rem;margin:10px 0 0;line-height:1.65}
.qc-section-note{max-width:430px;margin:0;font-size:1rem}
.qc-gates{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 50px}
.qc-gates>article{display:grid;grid-template-columns:72px 1fr;gap:20px;padding:32px 0;border-top:1px solid var(--line)}
.qc-gate-number{color:var(--red);font-size:28px;line-height:1.2;font-weight:500}
.qc-gate-number span{display:block;color:var(--muted);font-size:.75rem;line-height:1.6;letter-spacing:.04em;margin-top:10px}
.qc-gates h3{font-size:25px;line-height:1.3;margin-bottom:18px}
.qc-gates p{font-size:1rem;line-height:1.75}
.qc-gates details{border-top:1px solid var(--line);padding:12px 0}
.qc-gates details p{margin:12px 0 0}
.qc-gates summary{font-size:.9375rem;font-weight:600;cursor:pointer}
.qc-record-label{font-size:.875rem;color:#4f626e;background:#edf1f2;padding:10px 12px;margin-top:4px}
.qc-document-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.qc-document-grid article{background:#fff;border:1px solid var(--line);padding:28px}
.qc-document-grid .mono{color:var(--red);display:block;margin-bottom:20px}
.qc-document-grid h3{font-size:23px;line-height:1.35;margin-bottom:15px}
.qc-document-grid p{margin:0;font-size:1rem}
.qc-records-action{display:flex;align-items:center;justify-content:space-between;gap:40px;margin-top:30px}
.qc-records-action p{max-width:670px;margin:0}
.qc-records-action .text-link{flex-shrink:0}
.qc-measurement{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;margin-bottom:45px}
.qc-measurement figure{margin:0;background:var(--paper)}
.qc-measurement figure img{width:100%;height:320px;object-fit:contain;padding:18px}
.qc-measurement figcaption{border-top:1px solid var(--line);font-size:.875rem;color:var(--muted);padding:12px 18px}
.qc-methods>div{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;border-top:1px solid var(--line);padding:22px 0}
.qc-methods h3{font-size:20px;line-height:1.5;margin:0}
.qc-methods p{font-size:1rem;margin:0}
.qc-trace-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px}
.qc-trace-grid h2{font-size:clamp(30px,3.2vw,45px)}
.qc-trace-list{padding:0;margin:28px 0 0;list-style:none;counter-reset:trace}
.qc-trace-list li{position:relative;padding:0 0 26px 48px;color:#354550;counter-increment:trace}
.qc-trace-list li:before{content:counter(trace);position:absolute;left:0;top:0;width:28px;height:28px;background:#fff;border:1px solid #b7c4cc;text-align:center;line-height:26px;color:var(--red);font-size:.875rem}
.qc-trace-list li:not(:last-child):after{content:'';position:absolute;left:13px;top:29px;bottom:0;border-left:1px solid #b7c4cc}
.qc-capa article{display:flex;gap:22px;border-top:1px solid #cbd4d9;padding:22px 0}
.qc-capa article>.mono{color:var(--red);padding-top:4px}
.qc-capa h3{font-size:22px;line-height:1.4;margin:0 0 10px}
.qc-capa p{font-size:1rem;margin:0}
.qc-faq details{border-top:1px solid var(--line);padding:22px 0}
.qc-faq details:last-child{border-bottom:1px solid var(--line)}
.qc-faq summary{cursor:pointer;font-size:1.125rem;font-weight:600;line-height:1.6}
.qc-faq details p{max-width:950px;font-size:1rem;margin:18px 0 0;line-height:1.8}
.qc-application-proof{display:grid;grid-template-columns:1.4fr .8fr;gap:60px;padding:36px 0 60px;border-top:1px solid var(--line)}
.qc-application-proof h2{font-size:32px;line-height:1.3}
.qc-application-proof p{max-width:700px}
.qc-application-proof>div:last-child{display:flex;flex-direction:column;align-items:start;justify-content:center;gap:18px}
@media(max-width:1000px){.qc-gates{gap:0 26px}.qc-gates>article{grid-template-columns:50px 1fr;gap:16px}.qc-gates h3{font-size:23px}.qc-measurement,.qc-trace-grid{gap:36px}.qc-records-action{align-items:start;flex-direction:column;gap:16px}.qc-assurances strong{font-size:21px}.qc-section-note{max-width:600px}}
@media(max-width:700px){.qc-assurances{grid-template-columns:1fr;padding:12px 0}.qc-assurances>div{padding:22px 0;border-left:0;border-top:1px solid var(--line)}.qc-assurances>div:first-child{border-top:0}.qc-assurances strong{font-size:24px}.qc-assurances p{margin-top:6px}.qc-gates,.qc-measurement,.qc-trace-grid,.qc-document-grid,.qc-application-proof{grid-template-columns:1fr}.qc-gates>article{grid-template-columns:55px 1fr}.qc-measurement{gap:25px}.qc-measurement figure img{height:270px}.qc-document-grid article{padding:24px}.qc-methods>div{grid-template-columns:1fr;gap:8px}.qc-trace-grid{gap:40px}.qc-application-proof{gap:10px;padding-bottom:40px}.qc-application-proof h2{font-size:28px}.qc-faq summary{font-size:1.0625rem}.qc-gates h3{font-size:24px}}

/* Four concise flowcharts, with explicit acceptance and exception branches. */
.qf-preflight{display:flex;align-items:center;justify-content:center;gap:24px;border-block:1px solid var(--line);padding:22px;margin-bottom:32px;font-size:1rem;color:var(--muted)}
.qf-preflight b{color:var(--red);font-weight:400}
.qf-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.qf-card{padding:30px;background:#fff;border:1px solid var(--line);min-width:0}
.qf-card>header{position:static;display:flex;align-items:center;gap:16px;padding:0 0 26px;border:0;background:none;box-shadow:none;height:auto;z-index:auto}
.qf-code{color:var(--red);font-size:14px;letter-spacing:.08em;font-weight:700}
.qf-card h3{font-size:24px;line-height:1.3;margin:0}
.qf-node,.qf-check,.qf-return{font-size:15px;line-height:1.55;text-align:center;padding:13px 10px}
.qf-node{border:1px solid #b9c8ce;background:#f7f9fa;border-radius:4px}
.qf-start{max-width:360px;margin:auto}
.qf-arrow{height:26px;line-height:26px;text-align:center;color:#85959e;font-size:21px}
.qf-inspection{border:1px solid #a3b5bf;border-radius:4px;max-width:360px;margin:auto;padding:8px 12px}
.qf-check{padding:6px}
.qf-inspection .qf-arrow{height:19px;line-height:19px;font-size:17px}
.qf-split{display:grid;grid-template-columns:1fr 1fr;gap:20px;position:relative;padding-top:24px}
.qf-split:before{content:'';position:absolute;top:0;left:50%;height:13px;border-left:1px solid #85959e}
.qf-split:after{content:'';position:absolute;top:13px;left:calc(25% - 5px);right:calc(25% - 5px);border-top:1px solid #85959e}
.qf-path{position:relative;min-width:0}
.qf-path:before{content:'';position:absolute;top:-11px;left:50%;height:12px;border-left:1px solid #85959e}
.qf-route{display:block;text-align:center;font-size:12px;margin:0 0 8px;color:#4d6f65}
.qf-route:before{content:'↓';display:block;font-size:16px;line-height:18px;color:#85959e}
.qf-pass .qf-node{border-color:#b7cec5;background:#f1f7f4}
.qf-fail .qf-route{color:#9c5546}
.qf-fail .qf-node{border-color:#dec8c1;background:#fcf6f3}
.qf-return{padding:3px 0;color:#78594d;font-size:13px}
.qf-footnote{font-size:13px;color:var(--muted);margin:22px 0 0}
@media(max-width:760px){.qf-grid{grid-template-columns:1fr}.qf-card{padding:24px 18px}.qf-preflight{flex-direction:column;gap:10px;text-align:center;padding:20px 12px}.qf-preflight b{transform:rotate(90deg)}.qf-card h3{font-size:22px}.qf-node,.qf-check{font-size:14px}.qf-split{gap:14px}.qf-split:after{left:calc(25% - 3.5px);right:calc(25% - 3.5px)}}
.qf-card>header,.qf-card>header h3{color:var(--ink)}