/* VNPT-DC40-GOVTECH-COMMERCE-V1 — VNPT DC 4.0 region block styles. Mobile-first; NO page horizontal
 * scroll. Self-contained tokens with fallbacks; visual language consistent with sibling commerce
 * pages (shared blue system). Contains NO price styling (product is PROJECT/SURVEY). */
.dc40{--dc-blue:#0a57c2;--dc-blue-d:#0742a0;--dc-ink:#16202e;--dc-muted:#5a6b80;--dc-line:#e3e9f2;--dc-bg:#f6f9ff;--dc-card:#fff;--dc-ok:#0a8a4a;--dc-radius:14px;color:var(--dc-ink);padding-bottom:80px}
.dc40 *{box-sizing:border-box}
.dc40-region{max-width:1120px;margin:0 auto;padding:30px 16px}
.dc40-r-head{display:flex;align-items:center;gap:12px;margin:0 0 6px}
.dc40-r-num{flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:var(--dc-blue);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:15px}
.dc40-r-head h2{font-size:clamp(19px,4.6vw,27px);line-height:1.25;margin:0;font-weight:800}
.dc40-r-sub{color:var(--dc-muted);font-size:15px;line-height:1.55;margin:4px 0 16px;max-width:820px}
.dc40-r-sub b{color:var(--dc-ink)}
.dc40-note-muted{color:var(--dc-muted);font-size:13px;line-height:1.5;margin:12px 0 0}
.dc40-def{font-size:16px;line-height:1.6;color:var(--dc-ink);background:linear-gradient(180deg,#fff,var(--dc-bg));border:1.5px solid var(--dc-blue);border-radius:14px;padding:16px 18px;margin:6px 0 18px;max-width:900px}

/* buttons */
.dc40-cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.dc40-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 18px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;text-decoration:none;border:1.5px solid transparent;transition:.15s;min-height:48px}
.dc40-btn-sm{min-height:44px;padding:10px 16px;font-size:14px}
.dc40-btn-primary{background:var(--dc-blue);color:#fff}
.dc40-btn-primary:hover{background:var(--dc-blue-d)}
.dc40-btn-ghost{background:#fff;color:var(--dc-blue-d);border-color:var(--dc-blue)}
.dc40-btn-ghost:hover{background:var(--dc-bg)}

/* 01 pain grid */
.dc40-pain-grid{display:grid;grid-template-columns:1fr;gap:12px}
.dc40-pain-card{background:var(--dc-card);border:1.5px solid var(--dc-line);border-radius:var(--dc-radius);padding:16px}
.dc40-pain-ic{font-size:24px;line-height:1;margin-bottom:6px}
.dc40-pain-t{font-weight:700;font-size:15px;color:var(--dc-ink);margin-bottom:4px}
.dc40-pain-d{font-size:13.5px;line-height:1.5;color:var(--dc-muted)}

/* 02 operation diagram */
.dc40-fig{margin:0;background:var(--dc-card);border:1.5px solid var(--dc-line);border-radius:16px;padding:14px}
.dc40-diagram{width:100%;height:auto;display:block}
.dc40-figcap{font-size:13px;line-height:1.5;color:var(--dc-muted);margin-top:10px;text-align:center}

/* 03 role cards */
.dc40-role-cards{display:grid;grid-template-columns:1fr;gap:16px}
.dc40-role-card{background:var(--dc-card);border:1.5px solid var(--dc-line);border-radius:16px;padding:20px 16px;box-shadow:0 1px 3px rgba(16,32,46,.05)}
.dc40-role-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.dc40-role-ic{font-size:28px;line-height:1}
.dc40-role-head h3{margin:0;font-size:17px;font-weight:800;color:var(--dc-blue-d)}
.dc40-role-prop{font-size:14.5px;line-height:1.5;color:var(--dc-ink);font-weight:600;margin:0 0 10px}
.dc40-role-needs{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.dc40-role-needs li{position:relative;padding-left:24px;font-size:13.5px;line-height:1.5}
.dc40-role-needs li:before{content:"✓";position:absolute;left:0;top:0;color:var(--dc-ok);font-weight:800}

/* 04 feature groups */
.dc40-feat-grid{display:grid;grid-template-columns:1fr;gap:14px}
.dc40-feat-card{background:var(--dc-card);border:1.5px solid var(--dc-line);border-radius:14px;padding:16px}
.dc40-feat-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.dc40-feat-ic{font-size:22px;line-height:1}
.dc40-feat-head h3{margin:0;font-size:15.5px;font-weight:800;color:var(--dc-blue-d)}
.dc40-feat-card ul{margin:0;padding-left:20px;display:grid;gap:6px}
.dc40-feat-card li{font-size:13.5px;line-height:1.5;color:var(--dc-ink)}

/* 05 layers + characteristics */
.dc40-layers{display:grid;gap:10px}
.dc40-layer{display:flex;gap:12px;align-items:flex-start;background:var(--dc-card);border:1.5px solid var(--dc-line);border-radius:12px;padding:14px}
.dc40-layer-badge{flex:0 0 auto;width:38px;height:38px;border-radius:10px;background:var(--dc-blue);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:16px}
.dc40-layer-t{font-weight:700;font-size:15px;color:var(--dc-ink)}
.dc40-layer-d{font-size:13.5px;line-height:1.5;color:var(--dc-muted);margin-top:2px}
.dc40-char-grid{margin-top:16px;display:grid;grid-template-columns:1fr;gap:10px}
.dc40-char{display:flex;gap:10px;align-items:flex-start;background:var(--dc-bg);border:1px solid var(--dc-line);border-radius:10px;padding:12px 14px}
.dc40-char-ic{font-size:20px;line-height:1;flex:0 0 auto}
.dc40-char b{display:block;font-size:13.5px;color:var(--dc-blue-d);margin-bottom:2px}
.dc40-char span{font-size:13px;line-height:1.5;color:var(--dc-muted)}

/* 06 evidence stats + province table */
.dc40-stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.dc40-stat{background:var(--dc-card);border:1.5px solid var(--dc-line);border-radius:14px;padding:16px;text-align:center}
.dc40-stat-num{font-size:22px;font-weight:800;color:var(--dc-blue-d)}
.dc40-stat-lbl{font-size:13px;line-height:1.4;color:var(--dc-muted);margin-top:4px}
.dc40-prov{margin-top:14px;background:var(--dc-card);border:1.5px solid var(--dc-line);border-radius:12px;padding:0 14px}
.dc40-prov summary{cursor:pointer;padding:14px 0;font-weight:700;font-size:14.5px;color:var(--dc-blue-d)}
.dc40-table-wrap{overflow-x:auto;padding-bottom:12px}
.dc40-table{width:100%;border-collapse:collapse;font-size:13px;min-width:520px}
.dc40-table th,.dc40-table td{border:1px solid var(--dc-line);padding:8px 10px;text-align:left;line-height:1.4}
.dc40-table th{background:var(--dc-bg);color:var(--dc-ink);font-weight:700}
.dc40-table td:nth-child(2),.dc40-table td:nth-child(3),.dc40-table td:nth-child(4){text-align:right;white-space:nowrap}

/* 07 pilot */
.dc40-pilot{background:linear-gradient(180deg,#fff,var(--dc-bg));border:1.5px solid var(--dc-blue);border-radius:14px;padding:16px}
.dc40-pilot-intro{margin:0 0 10px;font-size:14.5px;line-height:1.55;color:var(--dc-ink);font-weight:600}
.dc40-pilot ul{margin:0;padding-left:20px;display:grid;gap:6px}
.dc40-pilot li{font-size:13.5px;line-height:1.5}

/* 08 security */
.dc40-sec-list{margin:0;padding:0;list-style:none;display:grid;gap:9px}
.dc40-sec-list li{position:relative;padding-left:26px;font-size:14px;line-height:1.55}
.dc40-sec-list li:before{content:"🛡️";position:absolute;left:0;top:0}

/* 09 survey */
.dc40-r-survey .dc40-survey{background:linear-gradient(180deg,#fff,var(--dc-bg));border:1.5px solid var(--dc-blue);border-radius:16px;padding:18px 16px;box-shadow:0 4px 18px rgba(10,87,194,.1)}
.dc40-survey-progress{height:6px;background:var(--dc-line);border-radius:999px;overflow:hidden;margin-bottom:16px}
.dc40-survey-bar{height:100%;width:0;background:var(--dc-blue);transition:width .25s}
.dc40-survey-q{font-size:16px;font-weight:700;color:var(--dc-ink);margin-bottom:12px}
.dc40-survey-hint{font-size:12.5px;font-weight:500;color:var(--dc-muted)}
.dc40-survey-opts{display:grid;gap:8px}
.dc40-survey-opt{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1.5px solid var(--dc-line);border-radius:10px;background:#fff;cursor:pointer;font-size:14.5px;min-height:48px}
.dc40-survey-opt:hover{border-color:var(--dc-blue)}
.dc40-survey-opt input{width:18px;height:18px;flex:0 0 auto;accent-color:var(--dc-blue)}
.dc40-survey-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px}
.dc40-survey-msg{font-size:13px;margin-top:10px;min-height:16px}
.dc40-survey-msg.dc40-err{color:#b4231f}

/* 10 qa */
.dc40-qa{display:grid;gap:8px}
.dc40-qa-item{background:var(--dc-card);border:1.5px solid var(--dc-line);border-radius:12px;padding:0 16px}
.dc40-qa-item summary{cursor:pointer;padding:14px 0;font-weight:700;font-size:15px;list-style:none}
.dc40-qa-item summary::-webkit-details-marker{display:none}
.dc40-qa-item summary:before{content:"+";color:var(--dc-blue);font-weight:800;margin-right:8px}
.dc40-qa-item[open] summary:before{content:"–"}
.dc40-qa-a{padding:0 0 14px;font-size:14px;line-height:1.6;color:var(--dc-muted)}

/* 11 related */
.dc40-rel-grid{display:grid;grid-template-columns:1fr;gap:12px}
.dc40-rel-card{display:block;background:var(--dc-card);border:1.5px solid var(--dc-line);border-radius:14px;padding:16px;text-decoration:none;transition:.15s}
.dc40-rel-card:hover{border-color:var(--dc-blue);box-shadow:0 4px 16px rgba(10,87,194,.1)}
.dc40-rel-name{display:block;font-weight:700;font-size:15px;color:var(--dc-blue-d)}
.dc40-rel-note{display:block;font-size:13px;color:var(--dc-muted);margin-top:3px;line-height:1.45}

/* 12 final cta */
.dc40-r-cta{background:var(--dc-bg);border-radius:18px;margin-top:20px}

/* lead result */
.dc40-lead-result{max-width:1120px;margin:0 auto;padding:0 16px}
.dc40-lead-result.dc40-ok{padding:16px;margin-top:10px;background:#eaf7ef;border:1.5px solid var(--dc-ok);border-radius:12px;color:#0a6b3b;font-weight:600}
.dc40-lead-result .dc40-btn{margin-left:8px}

/* modal */
.dc40-modal[hidden]{display:none}
.dc40-modal{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;padding:16px}
.dc40-modal-back{position:absolute;inset:0;background:rgba(16,32,46,.55)}
.dc40-modal-box{position:relative;background:#fff;border-radius:16px;max-width:460px;width:100%;max-height:92vh;overflow:auto;padding:22px 20px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.dc40-modal-x{position:absolute;top:10px;right:12px;background:none;border:none;font-size:26px;line-height:1;color:var(--dc-muted);cursor:pointer}
.dc40-modal-box h3{margin:0 6px 4px 0;font-size:19px;font-weight:800;color:var(--dc-ink)}
.dc40-modal-sub{margin:0 0 14px;font-size:13.5px;color:var(--dc-muted);line-height:1.5}
.dc40-field{display:block;margin-bottom:12px}
.dc40-field span{display:block;font-size:13px;font-weight:600;color:var(--dc-ink);margin-bottom:5px}
.dc40-field input,.dc40-field textarea{width:100%;padding:11px 12px;border:1.5px solid var(--dc-line);border-radius:10px;font-size:15px;font-family:inherit}
.dc40-field input:focus,.dc40-field textarea:focus{outline:none;border-color:var(--dc-blue)}
.dc40-modal-fine{font-size:12px;line-height:1.45;color:var(--dc-muted);margin:0 0 10px;background:var(--dc-bg);border:1px solid var(--dc-line);border-radius:8px;padding:8px 10px}
.dc40-modal-msg{font-size:13px;min-height:16px;margin-bottom:6px}
.dc40-modal-msg.dc40-err{color:#b4231f}
.dc40-modal-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
body.dc40-modal-open{overflow:hidden}

/* ≥720px */
@media(min-width:720px){
  .dc40-pain-grid{grid-template-columns:1fr 1fr 1fr 1fr}
  .dc40-role-cards{grid-template-columns:1fr 1fr 1fr}
  .dc40-feat-grid{grid-template-columns:1fr 1fr}
  .dc40-char-grid{grid-template-columns:1fr 1fr 1fr}
  .dc40-stat-grid{grid-template-columns:repeat(4,1fr)}
  .dc40-rel-grid{grid-template-columns:1fr 1fr 1fr}
}
@media(min-width:980px){
  .dc40-feat-grid{grid-template-columns:1fr 1fr 1fr 1fr}
}