:root {
	--green: #00b16a;
	--green-dark: #0b7a4b;
	--ink: #14211b;
	--ink-soft: #3c4a43;
	--muted: #6b7a72;
	--bg: #f5f7f5;
	--card: #ffffff;
	--line: #e4e9e5;
	--amber: #f59e0b;
	--red: #e11d48;
	--radius: 14px;
	--shadow: 0 1px 3px rgba(20, 33, 27, .08), 0 8px 24px rgba(20, 33, 27, .06);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif; color: var(--ink); background: var(--bg); line-height: 1.55; }
img { max-width: 100%; height: auto; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
a { color: var(--green-dark); }

.site-header { background: #0d1b15; color: #fff; position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; gap: 24px; min-height: 60px; flex-wrap: wrap; padding-top: 6px; padding-bottom: 6px; }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; }
.logo-mark { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 10px; background: linear-gradient(135deg, var(--green), #0c8a4f); color: #fff; font-weight: 800; letter-spacing: .5px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-size: 18px; }
.logo-text span { font-size: 12px; opacity: .8; letter-spacing: .4px; }
.main-nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.main-nav a { color: #e7f2ec; text-decoration: none; padding: 8px 14px; border-radius: 8px; font-size: 15px; font-weight: 600; }
.main-nav a:hover { background: rgba(255,255,255,.08); }
.main-nav a.active { background: var(--green); color: #062a1b; }
.lang-switch { display: flex; gap: 6px; align-items: center; font-size: 13px; margin-left: auto; }
.lang-switch a { color: #e7f2ec; text-decoration: none; padding: 5px 8px; border-radius: 7px; }
.lang-switch a:hover { background: rgba(255,255,255,.1); }
.lang-active { background: rgba(255,255,255,.12); padding: 5px 8px; border-radius: 7px; }

main { display: block; }
.hero { background: linear-gradient(160deg, #0d1b15 0%, #123427 55%, #0f5c3a 100%); color: #fff; padding: 64px 0 72px; }
.hero.hero-compact { padding: 40px 0 44px; }
.hero-compact { background: linear-gradient(160deg, #0d1b15, #123427); color:#fff; }
.hero-inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: center; }
.hero-text h1 { font-size: clamp(28px, 4.4vw, 46px); line-height: 1.15; margin: 0 0 16px; font-weight: 800; }
.hero-text .lead { font-size: 17px; color: rgba(255,255,255,.85); margin: 0 0 24px; max-width: 60ch; }
.accent { color: var(--green); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15); border-radius: var(--radius); padding: 20px 16px; text-align: center; backdrop-filter: blur(4px); }
.stat strong { display: block; font-size: 26px; color: var(--green); font-weight: 800; }
.stat span { font-size: 13px; opacity: .85; }

.btn { display: inline-block; padding: 11px 18px; border-radius: 10px; text-decoration: none; font-weight: 700; font-size: 14px; line-height: 1.2; border: 1px solid transparent; cursor: pointer; }
.btn-lg { padding: 13px 22px; font-size: 15px; }
.btn-sm { padding: 7px 12px; font-size: 13px; }
.btn-primary { background: var(--green); color: #062a1b; }
.btn-primary:hover { background: #12c47b; }
.btn-amazon { background: #ff9900; color: #14100a; }
.btn-amazon:hover { background: #ffb64d; }
.btn-detail { background: #123427; color: #fff; }
.btn-detail:hover { background: #1b4a38; }
.btn-outline { background: transparent; color: inherit; border-color: rgba(20,33,27,.35); }
.btn-outline:hover { border-color: var(--green); color: var(--green-dark); }

.breadcrumb { font-size: 13px; color: rgba(255,255,255,.7); margin-bottom: 14px; display: flex; gap: 6px; flex-wrap: wrap; }
.breadcrumb a { color: rgba(255,255,255,.85); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.product-page .breadcrumb { color: var(--muted); }
.product-page .breadcrumb a { color: var(--green-dark); }
.hero-compact h1 { margin: 0 0 8px; font-size: clamp(24px, 3.4vw, 36px); }
.lead { font-size: 17px; margin: 0; max-width: 72ch; }

section { margin: 0; }
.cats-section, .top-section, .system-section, .partner-section, .faq-section, .db-section, .akku-group, .product-page, .prose, .notfound { padding: 48px 0 8px; }
.cats-section h2, .top-section h2, .partner-section h2, .faq-section h2, .db-section h2, .akku-group h2 { font-size: 26px; margin: 0 0 8px; }
.section-sub { color: var(--muted); margin: 0 0 22px; }

.cats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.cat-tile { display: flex; flex-direction: column; gap: 6px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow); }
.cat-tile:hover { border-color: var(--green); transform: translateY(-2px); }
.cat-num { font-size: 12px; color: var(--green-dark); font-weight: 800; letter-spacing: 1px; }
.cat-label { font-weight: 700; font-size: 15px; }
.cat-count { font-size: 13px; color: var(--muted); }

.db-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.product-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.card-img img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; display: block; }
.card-body { padding: 14px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-meta { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.meta-leaf, .meta-volt, .chip, .count-pill { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.meta-leaf { background: #e8f4ee; color: #0b7a4b; }
.meta-volt { background: #eef2f0; color: #3c4a43; }
.meta-volt.volt36 { background: #dbeafe; color: #1d4ed8; }
.card-title { font-size: 15px; margin: 0; line-height: 1.35; }
.card-title a { color: inherit; text-decoration: none; }
.card-title a:hover { color: var(--green-dark); }
.card-rating { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.stars { color: var(--amber); font-size: 14px; letter-spacing: 1px; }
.star-half { opacity: .55; }
.star-empty { color: #d5dcd7; }
.card-price { font-size: 17px; font-weight: 800; margin: 2px 0 0; }
.card-price-na { color: var(--muted); font-weight: 600; }
.card-actions { display: flex; gap: 8px; margin-top: auto; }
.card-actions .btn { flex: 1; text-align: center; padding: 9px 8px; font-size: 13px; }

.db-controls { display: flex; gap: 10px; align-items: stretch; margin: 8px 0 16px; flex-wrap: wrap; }
.db-search { flex: 1; min-width: 220px; }
.db-search input, .db-sort select { width: 100%; padding: 11px 14px; border-radius: 10px; border: 1px solid var(--line); background: #fff; font-size: 14px; color: var(--ink); }
.db-filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 14px; align-items: center; }
.db-filters-volt { margin-top: -6px; }
.filter-label { font-size: 13px; color: var(--muted); font-weight: 600; }
.chip { text-decoration: none; background: #fff; border: 1px solid var(--line); color: var(--ink-soft); padding: 6px 12px; }
.chip:hover { border-color: var(--green); }
.chip.active { background: var(--green); border-color: var(--green); color: #062a1b; }
.chip-count { opacity: .7; font-weight: 600; }
.db-count { font-size: 14px; color: var(--muted); margin: 4px 0 16px; }
.db-count strong { color: var(--ink); font-size: 16px; }
.db-none { padding: 40px 0; }
.db-seo { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin: 32px 0 48px; }
.db-seo h2 { margin-top: 0; }
.db-seo p { color: var(--ink-soft); }

.system-section { display: grid; grid-template-columns: 1.7fr 1fr; gap: 36px; padding-top: 48px; }
.system-col h2 { font-size: 26px; margin: 28px 0 10px; }
.system-col h2:first-child { margin-top: 0; }
.prose h2 { font-size: 24px; margin: 28px 0 10px; }
.prose p { color: var(--ink-soft); max-width: 82ch; }
.checklist { list-style: none; padding: 0; margin: 14px 0; }
.checklist li { padding: 7px 0 7px 28px; position: relative; color: var(--ink-soft); }
.checklist li::before { content: "✓"; position: absolute; left: 0; top: 7px; color: var(--green); font-weight: 800; }
.system-side { align-self: start; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.system-side h3 { margin: 0 0 10px; font-size: 18px; }
.partner-list { margin: 8px 0 14px; padding-left: 20px; color: var(--ink-soft); }
.aside-cta { margin-top: 14px; }
.table-wrap { overflow-x: auto; margin: 10px 0 18px; }
.specs-table { width: 100%; border-collapse: collapse; background: #fff; font-size: 14px; }
.specs-table th, .specs-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.specs-table thead th { background: #f0f5f2; color: var(--ink-soft); font-size: 13px; }
.specs-table th { font-weight: 700; color: var(--ink-soft); white-space: nowrap; }
.partner-table td:first-child { white-space: nowrap; }
.small { font-size: 12px; color: var(--muted); }

.faq-list { display: grid; gap: 10px; margin-bottom: 48px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 18px; }
.faq-item summary { cursor: pointer; font-weight: 700; padding: 12px 0; font-size: 15px; }
.faq-item p { color: var(--ink-soft); margin: 0 0 14px; }

.product-page { padding-top: 36px; }
.product-top { display: grid; grid-template-columns: 440px 1fr; gap: 36px; align-items: start; margin: 22px 0 10px; }
.product-gallery { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.product-gallery img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.product-meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.meta-art { font-size: 13px; color: var(--muted); margin-left: auto; }
.product-info h1 { font-size: clamp(22px, 3vw, 32px); margin: 0 0 8px; line-height: 1.2; }
.product-model { color: var(--ink-soft); margin: 0 0 10px; font-size: 16px; }
.product-rating { display: flex; align-items: center; gap: 10px; margin: 6px 0 14px; }
.rating-count { font-size: 13px; color: var(--muted); }
.product-price { display: flex; align-items: baseline; gap: 14px; margin: 4px 0 4px; }
.price-tag { font-size: 30px; font-weight: 800; color: var(--green-dark); }
.price-updated { font-size: 13px; color: var(--muted); }
.price-note { font-size: 12px; color: var(--muted); margin: 0 0 18px; }
.product-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 0 0 22px; }
.product-about { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.product-about h2 { font-size: 18px; margin: 0 0 8px; }
.product-about p { margin: 0; color: var(--ink-soft); }
.product-detail { display: grid; grid-template-columns: 1fr 1.3fr; gap: 36px; margin-top: 34px; }
.specs-wrap h2, .product-side h2 { font-size: 22px; margin: 0 0 12px; }
.product-side h2 { margin-top: 0; }
.related-sub { color: var(--muted); margin: 0 0 16px; }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.notfound { padding: 80px 0; }
.notfound h1 { font-size: 30px; }

.center { text-align: center; margin-top: 24px; }
.count-pill { background: var(--green); color: #062a1b; margin-left: 6px; }
.akku-group { padding-top: 36px; }
.akku-group h2 { display: flex; align-items: center; }

.site-footer { background: #0d1b15; color: #cfe3d9; margin-top: 56px; padding: 48px 0 34px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.6fr; gap: 30px; margin-bottom: 28px; }
.footer-grid h4 { color: #fff; font-size: 15px; margin: 0 0 10px; }
.footer-grid p { margin: 0; font-size: 13px; color: #9fb8ad; }
.footer-mark { margin-top: 12px !important; font-size: 12px !important; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links a { color: #cfe3d9; text-decoration: none; font-size: 13px; display: inline-block; padding: 3px 0; }
.footer-links a:hover { color: var(--green); }
.footer-siblings { border-top: 1px solid rgba(255,255,255,.12); padding-top: 18px; font-size: 13px; line-height: 1.9; }
.sibling-label { color: #9fb8ad; font-weight: 700; }
.sibling-links a { color: #cfe3d9; text-decoration: none; }
.sibling-links a:hover { color: var(--green); }
.sibling-sep { margin: 0 6px; color: #5b7569; }

@media (max-width: 1080px) {
	.db-grid { grid-template-columns: repeat(3, 1fr); }
	.cats-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 820px) {
	.hero-inner { grid-template-columns: 1fr; }
	.hero-stats { grid-template-columns: repeat(4, 1fr); }
	.db-grid, .cats-grid, .related-grid { grid-template-columns: repeat(2, 1fr); }
	.system-section, .product-top, .product-detail, .footer-grid { grid-template-columns: 1fr; }
	.product-gallery { max-width: 480px; }
	.cats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
	.db-grid, .cats-grid, .related-grid { grid-template-columns: 1fr; }
	.hero-stats { grid-template-columns: repeat(2, 1fr); }
}