:root {
  --navy: #17324D;
  --navy-2: #244A68;
  --green: #2E8B57;
  --green-dark: #236B43;
  --gold: #E7A928;
  --red: #C94A4A;
  --cream: #F7F7F3;
  --white: #ffffff;
  --text: #252525;
  --muted: #68727c;
  --line: #dfe5e8;
  --shadow: 0 10px 30px rgba(23,50,77,.10);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--cream);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.section { padding: 72px 0; }
.section-sm { padding: 42px 0; }
.eyebrow { font-size: .82rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--green); }
h1,h2,h3 { color: var(--navy); line-height: 1.12; margin-top: 0; }
h1 { font-size: clamp(2.35rem, 6vw, 4.9rem); letter-spacing: -.045em; margin-bottom: 20px; }
h2 { font-size: clamp(1.85rem, 4vw, 3rem); letter-spacing: -.025em; margin-bottom: 18px; }
h3 { font-size: 1.25rem; margin-bottom: 10px; }
p { margin-top: 0; }
.lead { font-size: clamp(1.05rem, 2vw, 1.28rem); color: #40505f; max-width: 760px; }
.small { font-size: .9rem; color: var(--muted); }
.muted { color: var(--muted); }
.header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(247,247,243,.94);
  border-bottom: 1px solid rgba(23,50,77,.08);
}
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 900; color: var(--navy); }
.brand-mark { width: 38px; height: 38px; border-radius: 50%; background: conic-gradient(var(--gold) 0 25%, var(--green) 25% 50%, var(--navy) 50% 100%); box-shadow: inset 0 0 0 8px var(--cream); }
.brand-copy strong { display: block; line-height: 1; letter-spacing: .02em; }
.brand-copy span { display: block; font-size: .72rem; font-weight: 700; color: var(--muted); margin-top: 5px; }
.nav-links { display: flex; align-items: center; gap: 20px; font-weight: 700; color: #3e4d5a; }
.nav-links a:hover { color: var(--navy); }
.nav-toggle { display: none; border: 0; background: transparent; font-size: 1.6rem; }
.btns { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 20px; border-radius: 999px;
  font-weight: 800; border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--green); color: var(--white); box-shadow: 0 8px 20px rgba(46,139,87,.25); }
.btn-primary:hover { background: var(--green-dark); }
.btn-secondary { background: var(--white); border-color: #cbd5db; color: var(--navy); }
.btn-ghost { color: var(--navy); background: transparent; border-color: transparent; padding-left: 6px; padding-right: 6px; }
.hero { padding: 76px 0 54px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: 56px; align-items: center; }
.hero-panel {
  min-height: 430px; background: linear-gradient(145deg, var(--navy), #214d6d);
  border-radius: 32px; box-shadow: var(--shadow); position: relative; overflow: hidden; padding: 26px;
}
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.17); border-radius: 50%; }
.orbit.a { width: 330px; height: 330px; top: -80px; right: -70px; }
.orbit.b { width: 220px; height: 220px; left: -60px; bottom: -40px; }
.energy-card { position: absolute; background: var(--white); border-radius: 18px; padding: 18px; box-shadow: 0 14px 28px rgba(0,0,0,.20); width: min(255px, 70%); }
.energy-card strong { display: block; color: var(--navy); font-size: 1.05rem; margin-bottom: 4px; }
.energy-card p { color: var(--muted); font-size: .9rem; margin-bottom: 0; }
.energy-card.c1 { top: 42px; left: 28px; }
.energy-card.c2 { top: 176px; right: 26px; }
.energy-card.c3 { bottom: 30px; left: 56px; }
.energy-dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; margin-right: 7px; }
.trust-line { display: flex; gap: 12px 24px; flex-wrap: wrap; padding: 18px 0; color: var(--navy); font-weight: 800; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card { background: var(--white); border: 1px solid #e3e8eb; border-radius: var(--radius); padding: 24px; box-shadow: 0 7px 24px rgba(23,50,77,.06); }
.card.link-card { display: flex; flex-direction: column; min-height: 245px; }
.card.link-card .link-end { margin-top: auto; font-weight: 800; color: var(--green); }
.icon { width: 48px; height: 48px; border-radius: 14px; display: inline-grid; place-items: center; background: #edf5f0; color: var(--green); font-size: 1.35rem; margin-bottom: 16px; }
.process { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.step { background: var(--white); border-radius: var(--radius); padding: 24px; border: 1px solid #e3e8eb; position: relative; }
.step-num { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--navy); color: var(--white); font-weight: 900; margin-bottom: 16px; }
.statement { background: var(--navy); color: var(--white); border-radius: 28px; padding: 44px; }
.statement h2,.statement h3 { color: var(--white); }
.statement p { color: rgba(255,255,255,.82); }
.triple { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-top: 24px; }
.mini { border: 1px solid rgba(255,255,255,.18); border-radius: 18px; padding: 18px; }
.calculator-preview { background: var(--white); border-radius: 26px; padding: 28px; box-shadow: var(--shadow); }
.bar { height: 13px; border-radius: 999px; background: #e7ebee; overflow: hidden; margin-top: 8px; }
.bar > span { display:block; height: 100%; border-radius: 999px; }
.kpi-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin: 20px 0; }
.kpi { background: var(--cream); border-radius: 14px; padding: 16px; }
.kpi strong { display:block; color: var(--navy); font-size: 1.45rem; }
.upload-box { border: 2px dashed #b8c4cb; border-radius: 22px; padding: 34px; background: var(--white); text-align: center; }
.article-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.article-link { background: var(--white); border: 1px solid #e3e8eb; border-radius: 16px; padding: 18px; font-weight: 800; color: var(--navy); }
.article-link:hover { border-color: #becbd2; }
.dark { background: var(--navy); color: var(--white); }
.dark h2,.dark h3 { color: var(--white); }
.dark p { color: rgba(255,255,255,.82); }
.footer { background: #0f2436; color: rgba(255,255,255,.84); padding: 48px 0 88px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .9fr .9fr; gap: 30px; }
.footer a { color: rgba(255,255,255,.88); }
.footer h3 { color: var(--white); }
.mobile-cta { display:none; }
.page-hero { padding: 70px 0 42px; }
.page-hero .lead { max-width: 850px; }
.content { max-width: 840px; }
.content h2 { margin-top: 46px; }
.content h3 { margin-top: 30px; }
.content ul { padding-left: 22px; }
.callout { background: #eef5f1; border-left: 5px solid var(--green); border-radius: 14px; padding: 18px 20px; }
.scenario-row { display:grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.scenario { padding: 20px; border-radius: 18px; background: var(--white); border: 1px solid #e3e8eb; }
.scenario .topline { height: 7px; border-radius: 999px; margin-bottom: 16px; }
.form-card { background: var(--white); border-radius: 24px; padding: 28px; border: 1px solid #e0e6e9; box-shadow: 0 8px 26px rgba(23,50,77,.06); }
.form-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
label { font-weight: 800; color: var(--navy); }
input, select, textarea {
  width: 100%; min-height: 48px; padding: 12px 14px; border: 1px solid #cbd5db; border-radius: 12px; font: inherit; background: var(--white); color: var(--text);
}
textarea { min-height: 120px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(46,139,87,.22); border-color: var(--green); }
.choice-grid { display:grid; grid-template-columns: repeat(2,1fr); gap: 10px; }
.choice { display:flex; align-items:flex-start; gap:10px; padding:12px 14px; border:1px solid #d7dfe4; border-radius:12px; background:#fff; }
.choice input { width:auto; min-height:auto; margin-top:4px; }
.form-section { padding: 22px 0; border-bottom: 1px solid #eef1f3; }
.form-section:last-child { border-bottom: 0; }
.notice { padding: 14px 16px; border-radius: 12px; background: #fff7df; color:#6c5716; }
.success { display:none; padding: 22px; border-radius:18px; background:#edf7f0; border:1px solid #c7e4d0; margin-top:18px; }
.tabs { display:flex; gap:8px; flex-wrap:wrap; margin: 16px 0 26px; }
.tab-btn { border:1px solid #cbd5db; background:#fff; color:var(--navy); font-weight:800; border-radius:999px; padding:10px 14px; cursor:pointer; }
.tab-btn.active { background:var(--navy); color:#fff; border-color:var(--navy); }
.tool-panel { display:none; }
.tool-panel.active { display:block; }
.result-grid { display:grid; grid-template-columns: repeat(3,1fr); gap:14px; margin-top:18px; }
.result-card { padding:18px; background:#fff; border-radius:16px; border:1px solid #e2e7ea; }
.result-card strong { display:block; font-size:1.6rem; color:var(--navy); }
.tag { display:inline-block; padding:6px 10px; border-radius:999px; background:#eef4f7; color:var(--navy); font-size:.82rem; font-weight:800; }
@media (max-width: 920px) {
  .nav-links { display:none; position:absolute; top:72px; left:0; right:0; background:var(--cream); border-bottom:1px solid var(--line); padding:18px 24px; flex-direction:column; align-items:flex-start; }
  .nav-links.open { display:flex; }
  .nav-toggle { display:block; }
  .nav .btn-primary { display:none; }
  .hero-grid, .grid-4, .grid-3, .process, .triple, .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-panel { min-height:380px; }
  .scenario-row { grid-template-columns:1fr; }
}
@media (max-width: 680px) {
  body { padding-bottom: 68px; }
  .container { width:min(100% - 24px,1120px); }
  .section { padding: 54px 0; }
  .hero { padding: 48px 0 34px; }
  .hero-grid, .grid-4, .grid-3, .grid-2, .process, .triple, .footer-grid, .article-list, .kpi-row, .form-grid, .choice-grid, .result-grid { grid-template-columns: 1fr; }
  .hero-panel { min-height:330px; border-radius:24px; }
  .energy-card { width:72%; padding:15px; }
  .energy-card.c1 { top:28px; left:18px; }
  .energy-card.c2 { top:138px; right:16px; }
  .energy-card.c3 { left:32px; bottom:20px; }
  .statement { padding: 28px; border-radius:22px; }
  .mobile-cta { display:flex; position:fixed; left:0; right:0; bottom:0; z-index:80; padding:10px 12px; background:rgba(255,255,255,.96); border-top:1px solid var(--line); }
  .mobile-cta .btn { width:100%; }
  .page-hero { padding:48px 0 24px; }
  .form-card { padding:20px; }
}

/* V6 article and knowledge publishing styles */
.article-hero { padding:58px 0 30px; border-bottom:1px solid var(--line); background:linear-gradient(180deg,#fbfbf8,var(--cream)); }
.article-shell { max-width:920px; }
.breadcrumbs { display:flex; flex-wrap:wrap; gap:8px; font-size:.88rem; color:var(--muted); margin-bottom:26px; }
.breadcrumbs a { color:var(--green-dark); font-weight:700; }
.article-meta { display:flex; flex-wrap:wrap; gap:8px 18px; margin-top:24px; color:var(--muted); font-size:.92rem; }
.article-meta a { color:var(--navy); font-weight:800; }
.article-layout { display:grid; grid-template-columns:minmax(0, 1fr) 280px; gap:48px; align-items:start; }
.article-content { max-width:780px; }
.article-content h2 { margin-top:44px; }
.article-content h3 { margin-top:26px; }
.article-content ul,.article-content ol { padding-left:24px; }
.article-content li { margin-bottom:8px; }
.quick-answer { background:#edf5f0; border:1px solid #cfe1d6; border-radius:20px; padding:24px; margin-bottom:34px; }
.quick-answer p { font-size:1.14rem; margin-bottom:0; }
.example-box { background:#fff7df; border:1px solid #ecdca8; border-radius:18px; padding:22px; margin:34px 0; }
.article-disclaimer { margin-top:44px; padding:20px; border-radius:16px; background:#eef4f7; color:#42525e; font-size:.92rem; }
.article-aside { position:sticky; top:96px; display:grid; gap:16px; }
.author-card,.aside-card { background:#fff; border:1px solid #e1e7ea; border-radius:18px; padding:20px; box-shadow:0 7px 22px rgba(23,50,77,.05); }
.author-card h3 { margin:12px 0 4px; }
.related-section { margin-top:50px; }
.related-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
.related-card { background:#fff; border:1px solid #e1e7ea; border-radius:16px; padding:18px; font-weight:800; color:var(--navy); display:flex; flex-direction:column; gap:14px; }
.related-card span { color:var(--green); font-size:.88rem; }
.article-cta { margin-top:48px; padding:30px; background:var(--navy); color:#fff; border-radius:24px; }
.article-cta h2 { color:#fff; margin-top:0; }.article-cta p{color:rgba(255,255,255,.84)}
.knowledge-card { min-height:220px; }
.footer-small { border-top:1px solid rgba(255,255,255,.12); margin-top:28px; padding-top:20px; font-size:.88rem; }
@media (max-width: 860px){.article-layout{grid-template-columns:1fr}.article-aside{position:static;grid-template-columns:1fr 1fr}.related-grid{grid-template-columns:1fr}}
@media (max-width: 600px){.article-aside{grid-template-columns:1fr}.article-hero{padding-top:42px}.quick-answer{padding:20px}.article-cta{padding:24px}}