.qhhc{
  --ink:#19342d;--muted:#65736f;--paper:#fff;--soft:#f3f8f5;--line:#dfe9e3;
  --accent:#2d765e;--accent2:#204f40;--warn:#fff6db;--radius:20px;
  max-width:1080px;margin:24px auto;color:var(--ink);font-family:inherit
}
.qhhc *{box-sizing:border-box}
.qhhc-hero{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:34px;border-radius:28px;background:linear-gradient(135deg,#eef8f2,#f8fbf9);border:1px solid var(--line);box-shadow:0 12px 40px rgba(30,70,55,.08)}
.qhhc-kicker,.qhhc-eyebrow{display:inline-block;text-transform:uppercase;letter-spacing:.12em;font-size:.75rem;font-weight:800;color:var(--accent)}
.qhhc-hero h2{font-size:clamp(2rem,4vw,3.3rem);line-height:1.03;margin:.35rem 0 .7rem;max-width:760px}
.qhhc-hero p{font-size:1.08rem;color:var(--muted);max-width:700px;margin:0}
.qhhc-hero-badge{min-width:190px;padding:22px;border-radius:22px;background:var(--ink);color:white;text-align:center}
.qhhc-hero-badge span,.qhhc-hero-badge small{display:block;opacity:.78}
.qhhc-hero-badge strong{display:block;font-size:2.4rem;line-height:1.1;margin:.25rem 0}
.qhhc-progress{display:flex;align-items:center;justify-content:center;padding:28px 12px 8px}
.qhhc-step-dot{appearance:none;border:0;background:transparent;display:flex;flex-direction:column;align-items:center;gap:5px;color:var(--muted);cursor:pointer}
.qhhc-step-dot span{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;border:2px solid #ccd8d1;background:white;font-weight:800}
.qhhc-step-dot.active span,.qhhc-step-dot.done span{border-color:var(--accent);background:var(--accent);color:white}
.qhhc-step-dot.active small{color:var(--ink);font-weight:800}
.qhhc-line{height:2px;background:#d8e2dc;flex:0 1 120px;margin:0 8px 20px}
.qhhc-panel{display:none;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 8px 30px rgba(28,62,50,.055);margin:16px 0}
.qhhc-panel.active{display:block;animation:qhhcIn .25s ease}
@keyframes qhhcIn{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.qhhc-panel-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:22px}
.qhhc-panel h3{font-size:1.75rem;margin:.25rem 0 .25rem}
.qhhc-panel-head p{margin:0;color:var(--muted)}
.qhhc-epc-card{display:grid;grid-template-columns:auto 1fr;gap:18px;padding:20px;border-radius:16px;background:#edf6ff;border:1px solid #d8e9f7;margin-bottom:24px}
.qhhc-epc-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:white;font-size:1.6rem}
.qhhc-epc-copy h4{margin:0 0 5px}.qhhc-epc-copy p{margin:0 0 12px;color:#536873}.qhhc-epc-copy small{display:block;margin-top:9px;color:#687c86}
.qhhc-coming-soon{display:flex;flex-direction:column;gap:3px;margin-top:12px;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.72);border:1px solid #cfe0ee}
.qhhc-coming-soon strong{color:#24495a}
.qhhc-coming-soon span{color:#5e7480;font-size:.92rem}
.qhhc-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.qhhc-span-2{grid-column:span 2}
.qhhc-field{display:flex;flex-direction:column;gap:7px;font-weight:700}
.qhhc-field>span{font-size:.93rem}.qhhc-field em{font-style:normal;font-weight:500;color:var(--muted)}
.qhhc-field small{font-weight:500;color:var(--muted)}
.qhhc input,.qhhc select{width:100%;border:1px solid #cddbd3;border-radius:11px;padding:12px 13px;background:white;color:var(--ink);font:inherit;outline:none}
.qhhc input:focus,.qhhc select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(45,118,94,.12)}
.qhhc-input-unit{display:flex;align-items:center;border:1px solid #cddbd3;border-radius:11px;background:white;overflow:hidden}
.qhhc-input-unit:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(45,118,94,.12)}
.qhhc-input-unit input{border:0;box-shadow:none!important}.qhhc-input-unit b{padding-right:13px;color:var(--muted);white-space:nowrap}
.qhhc-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:26px}
.qhhc-actions-split{justify-content:space-between}
.qhhc-btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none!important;border-radius:11px;padding:12px 17px;border:1px solid transparent;font-weight:800;cursor:pointer;font:inherit}
.qhhc-btn-primary{background:var(--accent);color:white}.qhhc-btn-primary:hover{background:var(--accent2)}
.qhhc-btn-light{background:white;color:var(--ink);border-color:#ccd9d2}.qhhc-btn-ghost{background:transparent;color:var(--ink);border-color:#ccd9d2}
.qhhc-confidence{padding:7px 11px;background:#e8f6ed;color:#2d694f;border-radius:999px;font-size:.82rem;font-weight:800;white-space:nowrap}
.qhhc-confidence-basic{background:#fff2c8;color:#795e00}
.qhhc-result-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:16px}
.qhhc-big-result,.qhhc-range{padding:23px;border:1px solid var(--line);border-radius:18px;background:var(--soft)}
.qhhc-big-result span,.qhhc-range span{display:block;color:var(--muted);font-weight:700}
.qhhc-big-result strong{display:block;font-size:clamp(2.7rem,7vw,4.5rem);line-height:1;margin:10px 0}
.qhhc-range strong{display:block;font-size:1.55rem;margin:12px 0}.qhhc-big-result small,.qhhc-range small{color:var(--muted)}
.qhhc-explain{margin:18px 0;padding:18px;border-radius:15px;background:#fbfcfb;border:1px solid var(--line)}
.qhhc-explain h4{margin:0 0 5px}.qhhc-explain p{margin:0;color:var(--muted)}
.qhhc-breakdown{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.qhhc-breakdown>div{padding:14px;border:1px solid var(--line);border-radius:13px}.qhhc-breakdown span{display:block;color:var(--muted);font-size:.85rem}.qhhc-breakdown strong{display:block;margin-top:5px}
.qhhc-callout{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border-radius:14px;background:var(--warn);margin-top:18px}.qhhc-callout span{color:#665a32}
.qhhc-refine-group{padding:20px;border:1px solid var(--line);border-radius:16px;margin:14px 0}.qhhc-refine-group h4{margin:0 0 4px}.qhhc-refine-group>p{margin:0 0 16px;color:var(--muted)}
.qhhc-storey-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:14px 0}
.qhhc-toggle-row{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}.qhhc-toggle-row small{display:block;color:var(--muted)}
.qhhc-switch input{display:none}.qhhc-switch span{position:relative;display:block;width:48px;height:28px;border-radius:999px;background:#ccd7d1;cursor:pointer}.qhhc-switch span:after{content:"";position:absolute;width:22px;height:22px;background:white;border-radius:50%;top:3px;left:3px;transition:.2s;box-shadow:0 2px 6px rgba(0,0,0,.18)}.qhhc-switch input:checked+span{background:var(--accent)}.qhhc-switch input:checked+span:after{transform:translateX(20px)}
.qhhc-hidden{display:none!important}
.qhhc-refined-result{margin-top:22px;padding-top:22px;border-top:1px solid var(--line)}
.qhhc-epc-check{display:flex;flex-direction:column;gap:4px;margin-top:14px;padding:15px 17px;border-radius:14px;background:#edf6ff;border:1px solid #d8e9f7}
.qhhc-savebar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 22px;border-radius:16px;background:var(--ink);color:white;margin:18px 0}.qhhc-savebar div:first-child{display:flex;flex-direction:column}.qhhc-savebar span{opacity:.78}.qhhc-save-actions{display:flex;align-items:center;gap:14px}.qhhc-text-link{color:white!important}
.qhhc-method-note details{padding:15px 18px;border-radius:14px;background:#f7f9f8;border:1px solid var(--line)}.qhhc-method-note summary{cursor:pointer;font-weight:800}.qhhc-method-note p{color:var(--muted)}
@media(max-width:800px){
  .qhhc-hero{grid-template-columns:1fr}.qhhc-hero-badge{display:none}
  .qhhc-result-grid,.qhhc-form-grid{grid-template-columns:1fr}.qhhc-span-2{grid-column:auto}
  .qhhc-breakdown{grid-template-columns:repeat(2,1fr)}.qhhc-storey-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .qhhc{margin:10px auto}.qhhc-panel,.qhhc-hero{padding:20px;border-radius:18px}
  .qhhc-progress small{display:none}.qhhc-line{margin-bottom:0}
  .qhhc-panel-head,.qhhc-actions-split,.qhhc-savebar{flex-direction:column;align-items:stretch}
  .qhhc-actions{justify-content:stretch}.qhhc-actions .qhhc-btn{width:100%}
  .qhhc-breakdown,.qhhc-storey-grid{grid-template-columns:1fr}
  .qhhc-epc-card{grid-template-columns:1fr}.qhhc-epc-icon{display:none}
}
.qhhc-next-tool{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:24px;padding:20px;border-radius:17px;background:linear-gradient(135deg,#eaf6ef,#f7fbf8);border:1px solid #d4e7dc}.qhhc-next-tool h4{margin:.2rem 0 .25rem;font-size:1.3rem}.qhhc-next-tool p{margin:0;color:var(--muted);max-width:680px}.qhhc-choice-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.qhhc-choice{display:block;cursor:pointer}.qhhc-choice input{position:absolute;opacity:0;pointer-events:none}.qhhc-choice-card{display:flex;flex-direction:column;min-height:150px;padding:16px;border:1px solid var(--line);border-radius:15px;background:white;transition:.15s ease}.qhhc-choice-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(28,62,50,.08)}.qhhc-choice input:checked+.qhhc-choice-card{border-color:var(--accent);background:#eef8f2;box-shadow:0 0 0 2px rgba(45,118,94,.12)}.qhhc-choice-icon{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--soft);margin-bottom:10px;font-size:1rem}.qhhc-choice-card strong{font-size:.98rem}.qhhc-choice-card small{color:var(--muted);margin-top:5px;line-height:1.35}.qhhc-tech{border:1px solid var(--line);border-radius:18px;padding:20px;margin:14px 0;background:white;box-shadow:0 5px 18px rgba(28,62,50,.045)}.qhhc-tech:first-child{border-color:#b9d8c7;box-shadow:0 10px 30px rgba(45,118,94,.10)}.qhhc-tech-excluded{opacity:.62;background:#f7f7f7}.qhhc-tech-rank{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;font-weight:800;color:var(--accent);margin-bottom:8px}.qhhc-tech-excluded .qhhc-tech-rank{color:#777}.qhhc-tech-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.qhhc-tech-head h4{font-size:1.45rem;margin:0}.qhhc-tech-head p{margin:.25rem 0 0;color:var(--muted)}.qhhc-match{min-width:78px;text-align:center;padding:10px;border-radius:13px;background:var(--soft)}.qhhc-match strong{display:block;font-size:1.45rem}.qhhc-match span{font-size:.78rem;color:var(--muted)}.qhhc-tech-meta{display:grid;grid-template-columns:.6fr .8fr 1.6fr;gap:10px;margin:16px 0}.qhhc-tech-meta>div{padding:12px;border:1px solid var(--line);border-radius:12px}.qhhc-tech-meta span{display:block;color:var(--muted);font-size:.78rem}.qhhc-tech-meta strong{display:block;margin-top:3px;font-size:.9rem}.qhhc-why{padding:14px;border-radius:13px;background:#f5faf7;margin:12px 0}.qhhc-why ul,.qhhc-tech-details ul{margin:7px 0 0;padding-left:18px}.qhhc-tech details{margin-top:10px}.qhhc-tech summary{cursor:pointer;font-weight:800}.qhhc-tech-details{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-top:12px}@media(max-width:850px){.qhhc-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.qhhc-tech-meta{grid-template-columns:1fr}.qhhc-next-tool{flex-direction:column;align-items:flex-start}}@media(max-width:520px){.qhhc-choice-grid{grid-template-columns:1fr}.qhhc-tech-head,.qhhc-tech-details{grid-template-columns:1fr;display:grid}.qhhc-match{text-align:left;width:100%}}

.qhhc-basic-next{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:20px;padding:17px 18px;border-radius:14px;background:#f0f7ff;border:1px solid #d8e8f6}
.qhhc-basic-next>div{display:flex;flex-direction:column;gap:2px}
.qhhc-basic-next span{color:var(--muted);font-size:.92rem}
.qhhc-btn-secondary-link{background:#173d32;color:#fff!important;white-space:nowrap}
.qhhc-btn-secondary-link:hover{background:#0f3028}
@media(max-width:700px){.qhhc-basic-next{flex-direction:column;align-items:stretch}.qhhc-basic-next .qhhc-btn{width:100%}}