/* Shared article stylesheet — SolarHelio Insights */
:root{
  --bg:#f4f7fa; --card:#ffffff; --ink:#16242f; --muted:#5b6b7a; --line:#e4ebf1;
  --brand:#0a6e5d; --brand2:#13a06f; --navy:#0c1e2e; --navy2:#122c40;
  --gold:#d9a324; --gold2:#f0b73e; --chip:#e8f4f0;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Segoe UI",Roboto,Helvetica,Arial,"Noto Sans",sans-serif;background:var(--bg);color:var(--ink);line-height:1.72;-webkit-font-smoothing:antialiased;font-size:16px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:820px;margin:0 auto;padding:0 20px}

/* header */
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;max-width:1180px}
.brand{display:flex;align-items:center;gap:10px}
.brand .logo{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:900}
.brand .name{font-weight:800;font-size:1.15rem;color:var(--navy);line-height:1.05}
.brand .name small{display:block;font-weight:600;font-size:.66rem;color:var(--brand);letter-spacing:.5px}
nav.headnav{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
nav.headnav a{color:var(--ink);font-weight:600;font-size:.88rem;padding:7px 12px;border-radius:18px}
nav.headnav a:hover{background:var(--chip);color:var(--brand);text-decoration:none}
nav.headnav a.cta{background:var(--gold);color:#1c1407;margin-left:6px}
nav.headnav a.cta:hover{background:var(--gold2)}

/* article */
.article{padding:44px 22px 24px}
.tag{display:inline-block;background:var(--chip);color:var(--brand);font-size:.76rem;font-weight:700;padding:4px 12px;border-radius:14px;letter-spacing:.3px}
.meta{color:var(--muted);font-size:.84rem;margin:14px 0 4px}
h1{font-size:clamp(1.55rem,3.4vw,2.15rem);line-height:1.25;color:var(--navy);margin:6px 0 18px;font-weight:850}
.lead{font-size:1.06rem;color:var(--muted);border-left:4px solid var(--brand2);padding:6px 0 6px 16px;margin:0 0 28px}
.article-body p{margin:0 0 18px}
.article-body h2{color:var(--navy);margin:34px 0 10px;font-size:1.28rem;font-weight:800}
.article-body h3{color:var(--navy);margin:26px 0 8px;font-size:1.08rem;font-weight:700}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px}
.article-body li{margin-bottom:8px}
.article-body blockquote{border-left:4px solid var(--gold);background:#fffaee;padding:14px 18px;margin:22px 0;border-radius:6px;color:var(--navy);font-style:italic}
.callout{background:var(--chip);border-radius:12px;padding:16px 18px;margin:24px 0;font-weight:600;color:var(--navy)}

/* end CTA */
.end-cta{background:linear-gradient(135deg,#0c1e2e,#0a6e5d);color:#fff;border-radius:16px;padding:24px;margin:34px 0;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px}
.end-cta b{font-size:1.08rem}
.end-cta .btn-wa{background:var(--gold);color:#1c1407;padding:10px 18px;border-radius:22px;font-weight:700}
.end-cta .btn-wa:hover{background:var(--gold2);text-decoration:none}

/* footer */
footer.site{background:var(--navy);color:#cdd9e3;padding:28px 0;margin-top:30px;font-size:.86rem}
footer.site .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;max-width:1180px}
footer.site a{color:#cdd9e3}

@media(max-width:760px){
  nav.headnav{gap:4px}
  nav.headnav a{font-size:.82rem;padding:6px 9px}
  nav.headnav a.cta{padding:7px 12px}
  .article{padding:34px 22px 22px}
}
/* ===== v2 chrome: aligned with homepage + blog page ===== */
.topbar{background:var(--navy);color:#c8d8e4;font-size:.83rem}
.topbar .wrap{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;justify-content:space-between;padding:8px 20px;max-width:1180px}
.topbar a{color:#c8d8e4}
header.site .wrap{display:block;padding:13px 20px 12px;max-width:1180px}
.header-top{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.head-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:10px}
.langbar{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.langbar .lbl{font-size:.8rem;margin-right:4px;color:var(--muted);font-weight:600}
[dir="rtl"] .langbar .lbl{margin-right:0;margin-left:4px}
.langbtn{border:1px solid var(--line);background:#fff;color:var(--ink);font-family:inherit;font-size:.78rem;font-weight:600;padding:6px 11px;border-radius:16px;cursor:pointer;transition:.15s}
.langbtn:hover{border-color:var(--brand2);color:var(--brand)}
.langbtn.active{background:var(--brand);border-color:var(--brand);color:#fff}
nav.headnav a.cta{background:var(--gold);color:#1c1407;margin-left:0;padding:9px 18px;border-radius:24px}
.langnote{background:#fff;border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:10px;padding:12px 16px;margin:0 0 22px;font-size:.9rem;color:var(--muted)}
[dir="rtl"] .langnote{border-left:1px solid var(--line);border-right:4px solid var(--gold)}
footer.site{padding:34px 0 26px;color:#9fb2c2;font-size:.86rem}
footer.site .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px;max-width:1180px;padding:0 20px}
footer.site h4{color:#fff;font-size:.98rem;margin:0 0 12px}
footer.site a{color:#9fb2c2}
footer.site ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
footer.site .fnote{margin-top:20px;font-size:.78rem;color:#6f8497;border-top:1px solid rgba(255,255,255,.1);padding-top:16px;grid-column:1/-1}
.fab-wa{position:fixed;bottom:80px;right:20px;z-index:9999;background:#25D366;color:#fff;font-weight:700;font-size:.88rem;padding:10px 18px;border-radius:27px;box-shadow:0 4px 16px rgba(37,211,102,.4);display:inline-flex;align-items:center;gap:8px;text-decoration:none}
.fab-wa:hover{transform:scale(1.05);box-shadow:0 6px 22px rgba(37,211,102,.5);color:#fff;text-decoration:none}
.fab-wa svg{width:22px;height:22px;flex:0 0 auto}
.fab-wa .fab-txt{line-height:1}
#totop{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border:none;border-radius:50%;background:var(--brand);color:#fff;font-size:1.2rem;cursor:pointer;display:none;box-shadow:0 6px 18px rgba(0,0,0,.3);z-index:60}
@media(max-width:980px){ footer.site .wrap{grid-template-columns:1fr} }
@media(max-width:620px){ nav.headnav a{font-size:.82rem;padding:6px 9px} .langbtn{font-size:.72rem;padding:5px 9px} .article{padding:28px 18px 20px} .article h1{font-size:1.42rem;line-height:1.3;margin-bottom:14px} .lead{padding-left:14px;font-size:1rem} }
@media(max-width:560px){ .fab-wa{bottom:70px;right:14px;padding:8px 14px;font-size:.82rem} }

/* ===== key-takeaway card (translated summary above the English body) ===== */
.kp{background:#fffdf7;border:1px solid #f0e2bd;border-left:4px solid var(--gold);border-radius:12px;padding:16px 20px 14px;margin:0 0 22px}
[dir="rtl"] .kp{border-left:1px solid #f0e2bd;border-right:4px solid var(--gold)}
.kp[hidden]{display:none}
.kp-head{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:10px}
.kp-head .kp-ico{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--gold);color:#1c1407;font-size:.72rem;font-weight:700;flex:0 0 auto}
.kp-head b{font-size:1rem;color:var(--navy);letter-spacing:-.01em}
.kp-head .kp-lang{margin-left:auto;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#8a6d1f;background:#fdf3d8;border:1px solid #f0e2bd;border-radius:11px;padding:3px 9px}
[dir="rtl"] .kp-head .kp-lang{margin-left:0;margin-right:auto}
.kp-list{margin:0;padding:0;list-style:none;display:grid;gap:9px}
.kp-list li{position:relative;padding-left:20px;font-size:.93rem;line-height:1.62;color:#2c3a45}
.kp-list li::before{content:"\25AA";position:absolute;left:4px;top:0;color:var(--gold);font-size:1rem;line-height:1.62}
[dir="rtl"] .kp-list li{padding-left:0;padding-right:20px}
[dir="rtl"] .kp-list li::before{left:auto;right:4px}
.kp-note{margin:12px 0 0;padding-top:10px;border-top:1px dashed #ecdcb4;font-size:.78rem;color:var(--muted);line-height:1.55}
@media(max-width:560px){ .kp{padding:14px 15px 12px} .kp-head .kp-lang{margin-left:0} }