/* ================================================================
   RUIHE Silicone — Corporate Website Stylesheet
   ================================================================ */
:root{
  --brand:#0a3d5c;          /* deep petrol blue */
  --brand-700:#0c4d73;
  --brand-600:#0f5f8c;
  --accent:#12a7a7;         /* teal */
  --accent-600:#0e8f8f;
  --accent-light:#e6f6f6;
  --ink:#1b2a33;
  --ink-2:#3d4f59;
  --muted:#6b7c86;
  --line:#e4e9ee;
  --bg:#ffffff;
  --bg-soft:#f5f8fa;
  --bg-soft-2:#eef3f6;
  --gold:#d9a441;
  --white:#fff;
  --radius:14px;
  --radius-sm:9px;
  --shadow-sm:0 1px 3px rgba(16,40,55,.07),0 1px 2px rgba(16,40,55,.05);
  --shadow:0 10px 30px -12px rgba(10,61,92,.22);
  --shadow-lg:0 24px 60px -20px rgba(10,61,92,.32);
  --maxw:1240px;
  --font:'Inter','Segoe UI',system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.4vw,3.3rem)}
h2{font-size:clamp(1.6rem,3vw,2.35rem)}
h3{font-size:1.28rem}
p{margin:0 0 1rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:76px 0}
.section.tight{padding:52px 0}
.section.soft{background:var(--bg-soft)}
.section.ink{background:linear-gradient(135deg,var(--brand) 0%,#082e46 100%);color:#dfeaf1}
.section.ink h1,.section.ink h2,.section.ink h3{color:#fff}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--accent-600);margin-bottom:14px}
.section.ink .eyebrow{color:#5fd0d0}
.lead{font-size:1.12rem;color:var(--ink-2);max-width:70ch}
.section.ink .lead{color:#c4d6e2}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.muted{color:var(--muted)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.55em;font-weight:600;font-size:.98rem;
  padding:.82em 1.6em;border-radius:var(--radius-sm);border:1.5px solid transparent;
  cursor:pointer;transition:.22s;white-space:nowrap}
.btn svg{width:1.05em;height:1.05em}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-white{background:#fff;color:var(--brand)}
.btn-white:hover{background:#eef7f7;color:var(--brand)}
.btn-outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-white:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-lg{padding:1em 2em;font-size:1.05rem}

/* ---------- Top bar ---------- */
.topbar{background:var(--brand);color:#cfe0ea;font-size:.85rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:42px;gap:20px}
.topbar a{color:#cfe0ea}
.topbar a:hover{color:#fff}
.topbar-left{display:flex;gap:22px;align-items:center}
.topbar-right{display:flex;gap:20px;align-items:center}
.topbar .ico{display:inline-flex;align-items:center;gap:6px}
.topbar .ico svg{width:14px;height:14px;opacity:.85}
@media(max-width:900px){.topbar-left .hide-sm{display:none}}
@media(max-width:640px){.topbar{display:none}}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:200;background:#fff;border-bottom:1px solid var(--line)}
.navbar{display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{height:46px;width:auto}
.brand .bt{display:flex;flex-direction:column;line-height:1.05}
.brand .bt b{font-size:1.18rem;color:var(--brand);letter-spacing:.02em}
.brand .bt span{font-size:.66rem;color:var(--muted);letter-spacing:.13em;text-transform:uppercase}
.mainnav{display:flex;align-items:center;gap:2px;margin-left:auto}
.mainnav>li{position:relative;list-style:none}
.mainnav>li>a{display:flex;align-items:center;gap:5px;padding:12px 16px;font-weight:600;
  font-size:.96rem;color:var(--ink);border-radius:8px}
.mainnav>li>a:hover,.mainnav>li.active>a{color:var(--accent)}
.mainnav>li>a .chev{width:11px;height:11px;transition:transform .2s;opacity:.7}
.mainnav>li:hover>a .chev{transform:rotate(180deg)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
/* dropdown */
.dropdown{position:absolute;top:calc(100% + 6px);left:0;min-width:280px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);
  padding:10px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s;z-index:120}
.mainnav>li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown.mega{min-width:560px;display:grid;grid-template-columns:1fr 1fr;gap:4px}
.dropdown a{display:block;padding:10px 14px;border-radius:8px;color:var(--ink-2);font-size:.92rem;font-weight:500}
.dropdown a small{display:block;color:var(--muted);font-weight:400;font-size:.78rem;margin-top:1px}
.dropdown a:hover{background:var(--accent-light);color:var(--brand)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:26px;height:2.5px;background:var(--brand);border-radius:3px;transition:.3s}
@media(max-width:1080px){
  .nav-actions .btn-quote{display:none}
}
@media(max-width:960px){
  .mainnav{position:fixed;top:0;right:0;bottom:0;height:100%;width:min(340px,84vw);
    background:#ffffff;opacity:1;
    flex-direction:column;align-items:stretch;gap:0;padding:92px 18px 30px;margin:0;
    border-left:1px solid var(--line);box-shadow:-16px 0 44px -18px rgba(8,30,46,.45);
    transform:translateX(100%);transition:transform .3s;overflow-y:auto;z-index:130}
  .mainnav.open{transform:translateX(0)}
  .mainnav>li>a{padding:14px 12px;border-bottom:1px solid var(--line)}
  .mainnav>li>a .chev{margin-left:auto}
  .dropdown,.dropdown.mega{position:static;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;border-radius:0;display:none;grid-template-columns:1fr;padding:4px 0 8px 10px;min-width:0}
  .mainnav>li.open-sub .dropdown{display:block}
  .burger{display:flex}
  .nav-backdrop{position:fixed;inset:0;background:rgba(8,30,46,.5);opacity:0;visibility:hidden;
    transition:.3s;z-index:120}
  .nav-backdrop.show{opacity:1;visibility:visible}
}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;isolation:isolate;
  background:linear-gradient(120deg,rgba(8,32,49,.92) 0%,rgba(10,61,92,.78) 45%,rgba(18,167,167,.55) 100%)}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(8,32,49,.9),rgba(10,61,92,.6) 55%,rgba(18,167,167,.25));z-index:-1}
.hero-inner{padding:118px 0 108px;max-width:820px}
.hero h1{color:#fff;margin:0 0 20px}
.hero .lead{color:#d7e6ef;font-size:1.22rem;max-width:60ch}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 34px}
.hero-badges span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  padding:7px 14px;border-radius:100px;font-size:.82rem;font-weight:500;backdrop-filter:blur(4px)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.page-hero{position:relative;color:#fff;padding:74px 0 58px;
  background:linear-gradient(120deg,var(--brand) 0%,#0a4a6e 60%,#0e6e78 100%)}
.page-hero .breadcrumb{color:#a9c6d6;font-size:.86rem;margin-bottom:14px}
.page-hero .breadcrumb a{color:#a9c6d6}
.page-hero .breadcrumb a:hover{color:#fff}
.page-hero h1{color:#fff;margin:0 0 12px}
.page-hero p{color:#cfe0ea;max-width:72ch;margin:0}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.stat{padding:6px 6px}
.stat b{display:block;font-size:clamp(1.8rem,3.2vw,2.6rem);color:var(--brand);font-weight:800;letter-spacing:-.02em}
.section.ink .stat b{color:#fff}
.stat span{font-size:.86rem;color:var(--muted);font-weight:500}
.section.ink .stat span{color:#a9c6d6}
.stat.on-hero b{color:#fff}
@media(max-width:820px){.stats{grid-template-columns:repeat(2,1fr);gap:26px}}

/* ---------- Grid & cards ---------- */
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d3e6ea}
.card .card-media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft-2)}
.card .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card-media img{transform:scale(1.05)}
.card .card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.card h3{margin:0 0 8px;font-size:1.16rem}
.card h3 a{color:var(--ink)}
.card h3 a:hover{color:var(--accent)}
.card p{color:var(--ink-2);font-size:.94rem;margin:0 0 16px}
.card .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}
.tag{display:inline-block;background:var(--accent-light);color:var(--accent-600);font-size:.72rem;
  font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:5px 10px;border-radius:6px}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:.9rem;color:var(--brand-600)}
.arrow-link:hover{gap:10px;color:var(--accent)}

/* category card */
.cat-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:230px;isolation:isolate;
  display:flex;align-items:flex-end;color:#fff;box-shadow:var(--shadow-sm);transition:.28s}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.cat-card::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(8,32,49,.15) 0%,rgba(8,32,49,.86) 100%)}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.cat-card .cc-body{padding:24px}
.cat-card h3{color:#fff;margin:0 0 4px;font-size:1.3rem}
.cat-card p{color:#cfe0ea;font-size:.85rem;margin:0}
.cat-card .cc-count{position:absolute;top:16px;right:16px;background:rgba(255,255,255,.18);
  backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.28);padding:4px 11px;border-radius:100px;font-size:.76rem;font-weight:600}

/* feature/icon card */
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
.feature:hover{border-color:#cfe6ea;box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.feature .ficon{width:52px;height:52px;border-radius:12px;background:var(--accent-light);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--accent-600)}
.feature .ficon svg{width:26px;height:26px}
.feature h3{font-size:1.1rem;margin:0 0 8px}
.feature p{font-size:.92rem;color:var(--ink-2);margin:0}

/* ---------- Split / media ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.rev .split-media{order:2}
@media(max-width:880px){.split{grid-template-columns:1fr;gap:34px}.split.rev .split-media{order:0}}
.split-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}
.checklist{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
.checklist li{display:flex;gap:12px;align-items:flex-start;font-size:.98rem;color:var(--ink-2)}
.checklist li svg{flex-shrink:0;width:22px;height:22px;color:var(--accent);margin-top:1px}

/* ---------- Logos / cert strip ---------- */
.certstrip{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.certstrip span{border:1px solid var(--line);background:#fff;border-radius:100px;padding:9px 20px;
  font-weight:600;font-size:.9rem;color:var(--brand);box-shadow:var(--shadow-sm)}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:820px){.gallery{grid-template-columns:repeat(2,1fr)}}
.gallery figure{margin:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
  border:1px solid var(--line);background:#fff}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s}
.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{padding:12px 14px;font-size:.85rem;color:var(--ink-2);font-weight:500}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:900px){.cert-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.cert-grid{grid-template-columns:repeat(2,1fr)}}
.cert-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px;
  text-align:center;box-shadow:var(--shadow-sm);transition:.2s}
.cert-item:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.cert-item img{width:100%;aspect-ratio:4/3;object-fit:contain;background:var(--bg-soft);border-radius:6px}
.cert-item span{display:block;margin-top:10px;font-size:.8rem;color:var(--ink-2);font-weight:500;line-height:1.35}

/* ---------- Timeline ---------- */
.timeline{position:relative;max-width:860px;margin:0 auto;padding-left:0}
.timeline::before{content:"";position:absolute;left:120px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tl-item{position:relative;display:grid;grid-template-columns:120px 1fr;gap:34px;padding-bottom:34px}
.tl-item .tl-year{text-align:right;font-weight:800;font-size:1.35rem;color:var(--accent-600)}
.tl-item .tl-body{position:relative}
.tl-item .tl-body::before{content:"";position:absolute;left:-42px;top:6px;width:14px;height:14px;
  border-radius:50%;background:#fff;border:3px solid var(--accent)}
.tl-item .tl-body p{margin:0;color:var(--ink-2)}
@media(max-width:620px){
  .timeline::before{left:8px}
  .tl-item{grid-template-columns:1fr;gap:6px;padding-left:34px}
  .tl-item .tl-year{text-align:left}
  .tl-item .tl-body::before{left:-34px}
}

/* ---------- Product detail ---------- */
.pd-head{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
@media(max-width:880px){.pd-head{grid-template-columns:1fr;gap:28px}}
.pd-visual{background:linear-gradient(135deg,#0a3d5c,#0e6e78);border-radius:var(--radius);
  aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;color:#fff;
  position:relative;overflow:hidden;box-shadow:var(--shadow)}
.pd-visual img{width:100%;height:100%;object-fit:cover;opacity:.92}
.pd-visual .pd-code{position:absolute;bottom:18px;left:18px;background:rgba(0,0,0,.35);
  backdrop-filter:blur(4px);padding:8px 15px;border-radius:8px;font-weight:600;font-size:.9rem;letter-spacing:.03em}
.spec-table{width:100%;border-collapse:collapse;font-size:.94rem;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.spec-table th,.spec-table td{text-align:left;padding:13px 18px;border-bottom:1px solid var(--line)}
.spec-table th{background:var(--bg-soft);color:var(--ink);font-weight:600;width:38%;vertical-align:top}
.spec-table td{color:var(--ink-2)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.pill-list{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.pill-list li{background:var(--bg-soft);border:1px solid var(--line);padding:7px 14px;border-radius:100px;font-size:.86rem;color:var(--ink-2)}
.feat-list{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.feat-list li{display:flex;gap:11px;align-items:flex-start;color:var(--ink-2);font-size:.97rem}
.feat-list li svg{flex-shrink:0;width:20px;height:20px;color:var(--accent);margin-top:2px}
.subgrid{display:grid;grid-template-columns:1fr 1fr;gap:44px}
@media(max-width:780px){.subgrid{grid-template-columns:1fr;gap:30px}}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,var(--brand) 0%,#0c5170 55%,#12a7a7 130%);
  color:#fff;border-radius:20px;padding:52px 56px;display:flex;align-items:center;
  justify-content:space-between;gap:32px;flex-wrap:wrap;box-shadow:var(--shadow-lg)}
.cta-band h2{color:#fff;margin:0 0 8px}
.cta-band p{color:#cfe6ee;margin:0;max-width:52ch}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Forms ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:34px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:640px){.form-row{grid-template-columns:1fr}}
.field{margin-bottom:18px}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:7px;color:var(--ink)}
.field label .req{color:#d9534f}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);
  border-radius:9px;font-family:inherit;font-size:.95rem;color:var(--ink);background:#fff;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-light)}
.field textarea{resize:vertical;min-height:130px}
.form-note{font-size:.82rem;color:var(--muted);margin-top:8px}

/* contact info block */
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:22px}
.contact-list li{display:flex;gap:16px;align-items:flex-start}
.contact-list .ci-ico{flex-shrink:0;width:46px;height:46px;border-radius:11px;background:var(--accent-light);
  display:flex;align-items:center;justify-content:center;color:var(--accent-600)}
.contact-list .ci-ico svg{width:22px;height:22px}
.contact-list b{display:block;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700;margin-bottom:3px}
.contact-list span,.contact-list a{color:var(--ink);font-size:1rem}

/* prose */
.prose{max-width:74ch}
.prose h2{margin:38px 0 14px}
.prose h3{margin:28px 0 10px}
.prose p{color:var(--ink-2)}
.prose ul{color:var(--ink-2);padding-left:20px}
.prose li{margin-bottom:8px}

/* ---------- Article (blog post) ---------- */
.article-hero{position:relative;color:#fff;padding:78px 0 64px;overflow:hidden;
  background:linear-gradient(120deg,#082e46 0%,#0a4a6e 58%,#0e6e78 120%)}
.article-hero .container{position:relative;z-index:2;max-width:900px}
.article-hero .breadcrumb{color:#a9c6d6;font-size:.85rem;margin-bottom:18px}
.article-hero .breadcrumb a{color:#a9c6d6}
.article-hero .breadcrumb a:hover{color:#fff}
.article-hero .a-cat{display:inline-block;background:rgba(95,208,208,.18);border:1px solid rgba(95,208,208,.4);
  color:#7fe0e0;font-size:.74rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  padding:6px 14px;border-radius:100px;margin-bottom:18px}
.article-hero h1{color:#fff;font-size:clamp(1.9rem,3.6vw,2.9rem);margin:0 0 18px;max-width:20ch}
.article-hero .a-excerpt{color:#cfe0ea;font-size:1.15rem;max-width:64ch;margin:0 0 26px}
.article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;color:#bcd3e0;font-size:.9rem}
.article-meta .avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#12a7a7,#0a4a6e);
  display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:.95rem;flex-shrink:0}
.article-meta b{color:#fff;font-weight:600}
.article-meta .dot{opacity:.5}
.article-featimg{max-width:1100px;margin:-40px auto 0;padding:0 24px;position:relative;z-index:3}
.article-featimg img{width:100%;border-radius:16px;box-shadow:var(--shadow-lg);aspect-ratio:16/7;object-fit:cover}
.article-wrap{display:grid;grid-template-columns:260px minmax(0,1fr);gap:56px;
  max-width:1140px;margin:0 auto;padding:60px 24px 20px}
@media(max-width:900px){.article-wrap{grid-template-columns:1fr;gap:26px;padding-top:44px}}
.toc{position:sticky;top:100px;align-self:start;font-size:.9rem}
@media(max-width:900px){.toc{position:static;background:var(--bg-soft);border:1px solid var(--line);
  border-radius:var(--radius);padding:18px 20px}}
.toc h4{font-size:.74rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin:0 0 14px}
.toc ul{list-style:none;padding:0;margin:0;display:grid;gap:2px}
.toc a{display:block;padding:7px 12px;border-left:2px solid var(--line);color:var(--ink-2);
  border-radius:0 6px 6px 0;transition:.18s;line-height:1.4}
.toc a:hover,.toc a.active{border-left-color:var(--accent);color:var(--brand);background:var(--accent-light)}
.article-body{max-width:none;font-size:1.075rem;line-height:1.82;color:var(--ink-2)}
.article-body>p:first-of-type{font-size:1.2rem;line-height:1.7;color:var(--ink)}
.article-body h2{font-size:1.6rem;color:var(--ink);margin:44px 0 16px;padding-top:8px;scroll-margin-top:96px;
  display:flex;align-items:center;gap:12px}
.article-body h2::before{content:"";width:5px;height:1.1em;background:linear-gradient(var(--accent),var(--brand-600));
  border-radius:3px;flex-shrink:0}
.article-body h3{font-size:1.22rem;color:var(--ink);margin:30px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px;list-style:none}
.article-body ul li,.article-body ol li{position:relative;padding-left:32px;margin-bottom:12px}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.55em;width:8px;height:8px;
  border-radius:50%;background:var(--accent)}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{content:counter(li);position:absolute;left:0;top:.1em;width:22px;height:22px;
  background:var(--accent-light);color:var(--accent-600);border-radius:50%;font-size:.78rem;font-weight:700;
  display:flex;align-items:center;justify-content:center}
.article-body li strong,.article-body p strong{color:var(--ink)}
.article-body figure{margin:26px 0}
.article-body figure img{width:100%;border-radius:12px;border:1px solid var(--line)}
.article-body figcaption{font-size:.85rem;color:var(--muted);margin-top:8px;text-align:center}
.takeaways{background:linear-gradient(135deg,var(--accent-light),#f3fbfb);border:1px solid #cdeaea;
  border-radius:var(--radius);padding:26px 30px;margin:8px 0 34px}
.takeaways h3{margin:0 0 14px;font-size:1.05rem;color:var(--brand);display:flex;align-items:center;gap:10px}
.takeaways h3 svg{width:22px;height:22px;color:var(--accent-600)}
.takeaways ul{margin:0;padding:0}
.takeaways ul li{padding-left:28px}
.takeaways ul li::before{content:"";position:absolute;left:2px;top:.5em;width:9px;height:9px;background:var(--accent-600)}
.article-inline-cta{background:linear-gradient(120deg,var(--brand),#0c5170);color:#fff;border-radius:var(--radius);
  padding:28px 30px;margin:34px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.article-inline-cta p{margin:0;color:#e8f4f7;max-width:46ch;font-size:1rem}
.article-inline-cta b{color:#fff;display:block;font-size:1.15rem;margin-bottom:4px}
.article-share{display:flex;align-items:center;gap:12px;margin:40px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.article-share span{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600}
.article-share a{width:40px;height:40px;border-radius:10px;background:var(--bg-soft);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink-2);transition:.2s}
.article-share a:hover{background:var(--accent);color:#fff;border-color:var(--accent);transform:translateY(-2px)}
.article-share a svg{width:18px;height:18px}
.article-author{display:flex;gap:18px;align-items:center;background:var(--bg-soft);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 24px;margin-top:30px}
.article-author .avatar{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,#12a7a7,#0a4a6e);
  display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;flex-shrink:0}
.article-author b{display:block;color:var(--ink)}
.article-author p{margin:2px 0 0;font-size:.9rem;color:var(--muted)}

/* ---------- Footer ---------- */
.site-footer{background:#082e46;color:#a9c2d1;padding:64px 0 0;font-size:.92rem}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:34px;padding-bottom:46px;
  border-bottom:1px solid rgba(255,255,255,.1)}
@media(max-width:980px){.footer-top{grid-template-columns:1fr 1fr 1fr}}
@media(max-width:640px){.footer-top{grid-template-columns:1fr 1fr}}
.footer-brand img{height:52px;width:auto;margin-bottom:16px;background:#fff;padding:9px 13px;border-radius:10px}
.footer-brand p{color:#8aa6b8;font-size:.9rem;max-width:34ch}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{width:38px;height:38px;border-radius:9px;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;color:#cfe0ea}
.footer-social a:hover{background:var(--accent);color:#fff}
.footer-social svg{width:18px;height:18px}
.footcol h4{color:#fff;font-size:.9rem;text-transform:uppercase;letter-spacing:.09em;margin:0 0 16px}
.footcol ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footcol a{color:#a9c2d1}
.footcol a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:22px 0;color:#7d99ab;font-size:.85rem}
.footer-bottom a{color:#a9c2d1}

/* utilities */
.mt0{margin-top:0}.mb0{margin-bottom:0}
.divider{height:1px;background:var(--line);border:0;margin:0}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;font-size:.95rem}
.anchor-note{scroll-margin-top:100px}