/* HQTD V10.6 · coordinated six-topic grids for homepage */
.hqtd-six-topic-section{padding:66px 0;border-top:1px solid #e1e9f2;border-bottom:1px solid #e1e9f2}
.hqtd-six-topic-section.highsim-six{background:linear-gradient(180deg,#fff,#f5f9fd)}
.hqtd-six-topic-section.env-six{background:#f5f9fc}
.hqtd-six-head{display:flex;justify-content:space-between;align-items:flex-end;gap:34px;margin-bottom:24px}
.hqtd-six-head>div{min-width:0}.hqtd-six-head .section-en{display:block;color:#5a7f9e;font-size:11px;font-weight:900;letter-spacing:2px}
.hqtd-six-head h2{margin:7px 0 0;color:#173854;font-size:34px;line-height:1.2;letter-spacing:-.4px}
.hqtd-six-head p{max-width:620px;margin:0;color:#65798b;font-size:13px;line-height:1.78}
.hqtd-six-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}
.hqtd-six-card{--accent:#176fd1;position:relative;display:flex;flex-direction:column;min-height:230px;padding:20px;border:1px solid #dbe6ee;border-radius:13px;background:#fff;color:inherit;text-decoration:none;box-shadow:0 9px 26px rgba(20,56,88,.055);overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.hqtd-six-card:before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--accent)}
.hqtd-six-card:hover{transform:translateY(-3px);box-shadow:0 17px 36px rgba(20,56,88,.11);border-color:#cbdbe7}
.hqtd-six-card .topic-no{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}
.hqtd-six-card .topic-no b{color:var(--accent);font-size:27px;line-height:1}.hqtd-six-card .topic-no span{color:#8aa0b1;font-size:9px;font-weight:900;letter-spacing:1.5px}
.hqtd-six-card .topic-en{display:block;color:var(--accent);font-size:9px;font-weight:900;letter-spacing:1.45px}
.hqtd-six-card h3{margin:7px 0 8px;color:#173854;font-size:20px;line-height:1.38}
.hqtd-six-card p{margin:0;color:#687d8e;font-size:12px;line-height:1.72}
.hqtd-six-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:15px}
.hqtd-six-tags span{padding:4px 7px;border:1px solid #d9e4ec;border-radius:999px;background:#f8fafc;color:#587082;font-size:9px;font-weight:800}
.hqtd-six-link{display:inline-flex;margin-top:12px;color:var(--accent);font-size:11px;font-weight:900}
.hqtd-six-card.a1{--accent:#176fd1}.hqtd-six-card.a2{--accent:#178f87}.hqtd-six-card.a3{--accent:#6b5fd7}.hqtd-six-card.a4{--accent:#c58a28}.hqtd-six-card.a5{--accent:#4e7aa3}.hqtd-six-card.a6{--accent:#8a6f48}
.env-six .hqtd-six-card.a1{--accent:#0874c9}.env-six .hqtd-six-card.a2{--accent:#2a944e}.env-six .hqtd-six-card.a3{--accent:#7551d8}.env-six .hqtd-six-card.a4{--accent:#0b88c7}.env-six .hqtd-six-card.a5{--accent:#7b8d49}.env-six .hqtd-six-card.a6{--accent:#cf7a2d}
.hqtd-six-footer{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:18px;padding:14px 16px;border:1px solid #dce6ee;border-radius:10px;background:rgba(255,255,255,.72)}
.hqtd-six-footer span{color:#657a8c;font-size:11px;line-height:1.65}.hqtd-six-footer a{color:#0756a3;font-size:11px;font-weight:900;text-decoration:none;white-space:nowrap}

/* Clarify hierarchy: core simulation first, advanced topics second */
.hqtd-calc-core-enhanced .hqt-capability-head{margin-bottom:24px}
.hqtd-calc-core-note{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:18px;padding:13px 16px;border:1px solid #dce6ed;border-radius:10px;background:#f8fbfd}
.hqtd-calc-core-note span{color:#61798d;font-size:11px;line-height:1.65}.hqtd-calc-core-note b{color:#173854}
.hqtd-calc-core-note a{color:#0756a3;font-size:11px;font-weight:900;text-decoration:none;white-space:nowrap}

/* Environment board six-topic insertion */
.hqtd-board-env-six{padding:54px 0;background:#f5f9fc;border-top:1px solid #e2eaf1;border-bottom:1px solid #e2eaf1}
.hqtd-board-env-six .hqtd-six-head{margin-bottom:20px}

/* Floating panels: six entries without overflow */
.env-floating-hub-v90,.highsim-floating-hub-v103{max-height:calc(100vh - 145px);overflow:auto}
@media(max-width:980px){.hqtd-six-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:720px){.hqtd-six-topic-section{padding:48px 0}.hqtd-six-head{align-items:flex-start;flex-direction:column;gap:8px}.hqtd-six-head h2{font-size:28px}.hqtd-six-grid{grid-template-columns:1fr}.hqtd-six-card{min-height:205px}.hqtd-six-footer,.hqtd-calc-core-note{align-items:flex-start;flex-direction:column}}


/* HQTD V10.8 · characterization/environment page hierarchy */
.hqtd-board-env-v108{padding:58px 0;background:#f4f8fb;border-top:1px solid #e1e9f0;border-bottom:1px solid #e1e9f0}
.hqtd-board-env-v108 .hqtd-six-head{margin-bottom:22px}
.hqtd-env-project-summary-v108{display:grid;grid-template-columns:280px 1fr;gap:22px;align-items:center;margin-top:18px;padding:18px 20px;border:1px solid #dbe6ee;border-radius:11px;background:#fff}
.hqtd-env-project-summary-copy span,.hqtd-env-project-summary-copy strong,.hqtd-env-project-summary-copy p{display:block}
.hqtd-env-project-summary-copy span{color:#5d839f;font-size:9px;font-weight:900;letter-spacing:1.5px}
.hqtd-env-project-summary-copy strong{margin-top:5px;color:#173854;font-size:19px}
.hqtd-env-project-summary-copy p{margin:6px 0 0;color:#6b8091;font-size:11px;line-height:1.6}
.hqtd-env-project-summary-links{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
.hqtd-env-project-summary-links a{padding:7px 10px;border:1px solid #d4e1e9;border-radius:999px;background:#f8fbfd;color:#43657d;font-size:10px;font-weight:900;text-decoration:none}
.hqtd-env-project-summary-links a:hover{border-color:#a9c7d8;color:#0756a3;background:#fff}

/* project-query board cards: remove the special top-line mark from Environment Testing */
.hqt-board-stat-env{border-top-width:1px!important;border-top-style:solid!important;border-top-color:#d7e2ea!important;background:#fff!important}

@media(max-width:760px){
  .hqtd-env-project-summary-v108{grid-template-columns:1fr}
  .hqtd-env-project-summary-links{justify-content:flex-start}
}


/* HQTD V10.9 · representative environmental projects */
.hqtd-env-representative-v109{padding-top:56px;padding-bottom:62px;background:#f5f9fc}
.hqtd-env-representative-v109 .section-title-row{display:grid;grid-template-columns:minmax(0,.75fr) minmax(320px,.65fr);gap:28px;align-items:end;margin-bottom:23px}
.hqtd-env-representative-v109 .section-title-row h2{margin:7px 0 0;color:#10284a;font-size:30px}
.hqtd-env-rep-intro{margin:0;color:#647b8e;font-size:13px;line-height:1.75}
.hqtd-env-rep-grid .ai-showcase-card{height:100%}
.hqtd-env-rep-grid .ai-showcase-media{height:178px;background:#eef5f8}
.hqtd-env-rep-grid .ai-showcase-media img{width:100%;height:100%;object-fit:cover}
.hqtd-env-rep-grid .ai-showcase-copy{display:flex;flex-direction:column;height:calc(100% - 178px)}
.hqtd-env-rep-grid .ai-showcase-footer{margin-top:auto}
.hqtd-env-rep-more{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:18px;padding:14px 16px;border:1px solid #dce6ed;border-radius:9px;background:#fff}
.hqtd-env-rep-more span{color:#62798b;font-size:11px;line-height:1.65}
.hqtd-env-rep-more a{color:#0756a3;font-size:11px;font-weight:900;text-decoration:none;white-space:nowrap}

/* Light global card polish */
.hqt-category-tile,.hqt-board-stat,.hqt-class-group{transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.hqt-category-tile:hover,.hqt-board-stat:hover,.hqt-class-group:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(20,55,86,.07);border-color:#cbdbe7}

@media(max-width:860px){
  .hqtd-env-representative-v109 .section-title-row{grid-template-columns:1fr}
}
@media(max-width:620px){
  .hqtd-env-rep-more{align-items:flex-start;flex-direction:column}
}