:root {
    --color-primary: #0369A1;
    --color-primary-dark: #075985;
    --color-primary-light: #E0F2FE;
    --color-secondary: #0F766E;
    --color-accent: #EA580C;
    --color-success: #16A34A;
    --color-warning: #CA8A04;
    --color-error: #DC2626;
    --color-text: #1E293B;
    --color-text-secondary: #64748B;
    --color-text-light: #94A3B8;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F8FAFC;
    --color-bg-card: #FFFFFF;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;
    --color-star: #F59E0B;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
    --max-width: 1200px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
}

a { color: var(--color-primary); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--color-primary-dark); }

img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ── Header ── */
.site-header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    color: var(--color-text);
    letter-spacing: -0.02em;
}
.logo:hover { color: var(--color-text); }
.logo strong { color: var(--color-primary); }
.logo-icon { width: 28px; height: 28px; color: var(--color-primary); }

.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}
.main-nav > a, .nav-dropdown-btn {
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: color 0.15s, background 0.15s;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 4px;
}
.main-nav > a:hover, .nav-dropdown-btn:hover {
    color: var(--color-text);
    background: var(--color-bg-alt);
}
.chevron { width: 16px; height: 16px; transition: transform 0.2s; }
.nav-dropdown.open .chevron { transform: rotate(180deg); }

.nav-dropdown { position: relative; }
.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    padding: 8px;
    z-index: 50;
}
.nav-dropdown.open .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a {
    display: block;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
}
.nav-dropdown-menu a:hover {
    background: var(--color-bg-alt);
    color: var(--color-text);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-menu-btn svg { width: 24px; height: 24px; color: var(--color-text); }

/* ── Hero ── */
.hero {
    background: linear-gradient(135deg, #0C4A6E 0%, #075985 50%, #0369A1 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}
.hero h1 {
    font-size: 40px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.hero p {
    font-size: 18px;
    opacity: 0.85;
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.6;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
    text-decoration: none;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }

.btn-secondary {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.25);
}
.btn-secondary:hover { background: rgba(255,255,255,0.25); color: #fff; }

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
}
.btn-outline:hover { background: var(--color-bg-alt); color: var(--color-primary); }

.btn-accent {
    background: var(--color-accent);
    color: #fff;
}
.btn-accent:hover { background: #C2410C; color: #fff; }

.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* ── Section ── */
.section { padding: 64px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-title {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    line-height: 1.2;
}
.section-subtitle {
    color: var(--color-text-secondary);
    font-size: 16px;
    margin-bottom: 40px;
}

/* ── Product Card ── */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.product-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
    border-color: var(--color-primary);
}
.product-card-img {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-bg-alt);
    position: relative;
    display: block;
}
.product-card-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
    transition: transform 0.35s ease;
}
.product-card:hover .product-card-img img { transform: scale(1.06); }
.product-card-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(255,255,255,0.95);
    border-radius: 999px;
    padding: 3px 8px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 2px;
}
.product-card-badge .stars .star { width: 12px; height: 12px; }
.product-card-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.product-card-brand {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}
.product-card-title {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-text);
    margin-bottom: 10px;
}
.product-card-title a { color: inherit; }
.product-card-title a:hover { color: var(--color-primary); }
.product-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--color-border-light);
}
.product-card-price-wrap {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.product-card-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}
.product-card-rating-text {
    font-size: 12px;
    color: var(--color-text-secondary);
}
.product-card-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-md);
    background: var(--color-primary);
    color: #fff !important;
    text-decoration: none;
    white-space: nowrap;
    transition: background 0.2s ease;
}
.product-card-btn:hover {
    background: var(--color-primary-dark);
}

/* ── Stars ── */
.stars { display: inline-flex; align-items: center; gap: 1px; }
.star { width: 16px; height: 16px; }
.star-filled { color: var(--color-star); }
.star-empty { color: #D1D5DB; }
.star-half { color: var(--color-star); }

/* ── Badge ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 999px;
}
.badge-pick {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

/* ── Top List Index ── */
.toplist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}
.toplist-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}
.toplist-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
    border-color: var(--color-primary);
}
.toplist-card-img {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--color-bg-alt);
    position: relative;
}
.toplist-card-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
    transition: transform 0.35s ease;
}
.toplist-card:hover .toplist-card-img img { transform: scale(1.05); }
.toplist-card-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--color-accent);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.toplist-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.toplist-card-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: 8px;
    color: var(--color-text);
}
.toplist-card-desc {
    font-size: 14px;
    line-height: 1.55;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.toplist-card-link {
    margin-top: auto;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    transition: color 0.15s;
}
.toplist-card:hover .toplist-card-link { color: var(--color-primary-dark); }

/* ── Comparison Table ── */
.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.comparison-table th {
    background: var(--color-bg-alt);
    padding: 14px 16px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
.comparison-table td {
    padding: 16px;
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: middle;
}
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table tr:hover td { background: var(--color-bg-alt); }
.comparison-table .rank-cell {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
    width: 60px;
}
.comparison-table .img-cell { width: 100px; }
.comparison-table .img-cell img {
    width: 80px;
    height: 60px;
    object-fit: contain;
    border-radius: var(--radius-sm);
}
.comparison-table .product-cell { min-width: 200px; }
.comparison-table .product-cell a {
    font-weight: 500;
    color: var(--color-text);
}
.comparison-table .product-cell a:hover { color: var(--color-primary); }
.comparison-table .highlight-cell {
    font-size: 14px;
    color: var(--color-text-secondary);
    max-width: 300px;
}
.comparison-table .price-cell {
    font-weight: 600;
    font-size: 16px;
    white-space: nowrap;
}
.comparison-table .action-cell { text-align: right; white-space: nowrap; }

/* ── Top List Writeups ── */
.toplist-writeup {
    padding: 32px 0;
    border-bottom: 1px solid var(--color-border);
}
.toplist-writeup:last-child { border-bottom: none; }
.toplist-writeup-grid {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 28px;
    align-items: start;
}
.toplist-writeup-img {
    display: block;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 1/1;
    transition: box-shadow 0.2s;
}
.toplist-writeup-img:hover { box-shadow: var(--shadow-md); }
.toplist-writeup-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s;
}
.toplist-writeup-img:hover img { transform: scale(1.05); }
.toplist-writeup-body { min-width: 0; }
.toplist-writeup-header {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 4px;
    flex-wrap: wrap;
}
.toplist-writeup-rank {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
    flex-shrink: 0;
}
.toplist-writeup-header h3 {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
}
.toplist-writeup-header h3 a { color: var(--color-text); }
.toplist-writeup-header h3 a:hover { color: var(--color-primary); }
.toplist-writeup-brand {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}
.toplist-writeup p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}
.toplist-writeup-actions {
    display: flex;
    gap: 12px;
    margin-top: 8px;
    flex-wrap: wrap;
}
@media (max-width: 640px) {
    .toplist-writeup-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .toplist-writeup-img {
        max-width: 200px;
        aspect-ratio: 1/1;
    }
}

/* ── Category Best-Of Banner ── */
.category-bestof {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px 28px;
    margin-bottom: 32px;
}
.category-bestof h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}
.category-bestof-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.category-bestof-links a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--color-text);
    text-decoration: none;
    transition: border-color 0.15s, color 0.15s;
}
.category-bestof-links a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ── Product Page ── */
.product-page { padding: 48px 0; }
.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.product-image-wrap {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: sticky;
    top: 88px;
}
.product-image-wrap img { width: 100%; height: auto; object-fit: contain; }
.product-info { padding-top: 8px; }
.product-info .product-brand {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}
.product-info h1 {
    font-size: 28px;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}
.product-info .product-price {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}
.product-info .product-price-note {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 24px;
}
.product-info .product-desc {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}
.product-info .product-actions { display: flex; gap: 12px; margin-bottom: 32px; }
.product-info .product-rating-summary {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}
.product-rating-number {
    font-size: 36px;
    font-weight: 600;
    line-height: 1;
}
.product-rating-detail {
    font-size: 13px;
    color: var(--color-text-secondary);
}

/* ── Product Long Description ── */
.product-long-description {
    margin-top: 48px;
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
}
.product-long-description h2 {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 20px;
}
.product-long-description p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    max-width: 720px;
}
.product-spec-block {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-bottom: 16px;
    max-width: 720px;
    white-space: pre-wrap;
}

/* ── Reviews ── */
.reviews-section { padding: 48px 0; border-top: 1px solid var(--color-border); }
.review-list { display: flex; flex-direction: column; gap: 24px; margin-bottom: 48px; }
.review-card {
    padding: 24px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}
.review-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}
.review-author {
    font-weight: 500;
    font-size: 15px;
}
.review-date {
    font-size: 13px;
    color: var(--color-text-light);
}
.review-text {
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-top: 8px;
}

/* ── Review Form ── */
.review-form {
    background: var(--color-bg-alt);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}
.review-form h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--color-text);
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    font-size: 15px;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color 0.15s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(3,105,161,0.1);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.star-input { display: flex; gap: 4px; flex-direction: row-reverse; justify-content: flex-end; }
.star-input input { display: none; }
.star-input label {
    cursor: pointer;
    font-size: 28px;
    color: #D1D5DB;
    transition: color 0.1s;
    margin-bottom: 0;
}
.star-input label:hover,
.star-input label:hover ~ label,
.star-input input:checked ~ label { color: var(--color-star); }
.form-message {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    margin-bottom: 16px;
}
.form-message-success { background: #DCFCE7; color: #166534; }
.form-message-error { background: #FEE2E2; color: #991B1B; }

/* ── Category Page ── */
.category-header { padding: 48px 0 32px; }
.category-header h1 {
    font-size: 32px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.category-header p {
    font-size: 16px;
    color: var(--color-text-secondary);
    max-width: 640px;
    line-height: 1.6;
}
.editors-pick {
    background: var(--color-primary-light);
    border: 1px solid #BAE6FD;
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 32px;
    display: flex;
    gap: 24px;
    align-items: center;
}
.editors-pick-img {
    width: 120px;
    height: 90px;
    object-fit: contain;
    flex-shrink: 0;
}
.editors-pick-info { flex: 1; }
.editors-pick-info .badge { margin-bottom: 8px; }
.editors-pick-info h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}
.editors-pick-info h3 a { color: var(--color-text); }
.editors-pick-info h3 a:hover { color: var(--color-primary); }
.editors-pick-info p {
    font-size: 14px;
    color: var(--color-text-secondary);
}
.editors-pick-price {
    font-size: 24px;
    font-weight: 600;
    text-align: right;
    white-space: nowrap;
}

/* ── Blog ── */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}
.blog-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s;
    display: flex;
    flex-direction: column;
}
.blog-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}
.blog-card-img {
    display: block;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--color-bg-alt);
}
.blog-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}
.blog-card:hover .blog-card-img img { transform: scale(1.05); }
.blog-card-body { padding: 28px; }
.blog-card-meta {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.blog-card-title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 12px;
}
.blog-card-title a { color: var(--color-text); }
.blog-card-title a:hover { color: var(--color-primary); }
.blog-card-excerpt {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.blog-article { max-width: 720px; margin: 0 auto; padding: 48px 24px; }
.blog-article-header { margin-bottom: 40px; }
.blog-article-header h1 {
    font-size: 36px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}
.blog-article-hero {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 24px;
    object-fit: cover;
    aspect-ratio: 16/9;
}
.blog-article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--color-text-secondary);
}
.blog-article-author {
    font-weight: 500;
    color: var(--color-text);
}
.blog-article-body { font-size: 17px; line-height: 1.8; color: var(--color-text); }
.blog-article-body h2 {
    font-size: 24px;
    font-weight: 600;
    margin: 40px 0 16px;
    letter-spacing: -0.01em;
}
.blog-article-body p { margin-bottom: 20px; }

/* ── Breadcrumb ── */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-light);
    padding: 16px 0;
    flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb-sep { color: var(--color-text-light); }

/* ── Redirect ── */
.redirect-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    padding: 48px 24px;
}
.redirect-page h1 { font-size: 24px; margin-bottom: 12px; }
.redirect-page p { color: var(--color-text-secondary); margin-bottom: 24px; }
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 24px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── 404 ── */
.not-found {
    text-align: center;
    padding: 80px 24px;
}
.not-found h1 { font-size: 48px; font-weight: 600; margin-bottom: 12px; }
.not-found p { color: var(--color-text-secondary); margin-bottom: 32px; }

/* ── Footer ── */
.site-footer {
    background: #0F172A;
    color: #CBD5E1;
    padding: 64px 0 32px;
    margin-top: 64px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.footer-about p { font-size: 14px; line-height: 1.6; margin-top: 12px; }
.footer-about .logo { color: #fff; }
.footer-about .logo strong { color: #38BDF8; }
.footer-about .logo-icon { color: #38BDF8; }
.footer-links h4 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #94A3B8;
    margin-bottom: 16px;
}
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: #CBD5E1; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom {
    border-top: 1px solid #1E293B;
    padding-top: 24px;
    font-size: 13px;
    color: #64748B;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .hero { padding: 48px 0; }
    .hero h1 { font-size: 28px; }
    .hero p { font-size: 16px; }

    .main-nav {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-lg);
    }
    .main-nav.open { display: flex; }
    .mobile-menu-btn { display: block; }

    .nav-dropdown-menu {
        position: static;
        box-shadow: none;
        border: none;
        padding: 0 0 0 16px;
    }

    .product-layout { grid-template-columns: 1fr; gap: 32px; }
    .product-image-wrap { position: static; }
    .product-info h1 { font-size: 24px; }

    .footer-grid { grid-template-columns: 1fr; gap: 32px; }

    .editors-pick { flex-direction: column; text-align: center; }
    .editors-pick-price { text-align: center; }

    .comparison-table { font-size: 14px; }
    .comparison-table .img-cell { display: none; }
    .comparison-table .highlight-cell { display: none; }

    .blog-grid { grid-template-columns: 1fr; }
    .blog-article-header h1 { font-size: 28px; }

    .product-grid { grid-template-columns: 1fr; }

    .product-gallery-thumbs {
        gap: 8px;
    }
    .product-gallery-thumb {
        width: 56px;
        height: 56px;
    }
}

/* ── Product Card Enhancements ── */
.product-card-desc {
    font-size: 13px;
    line-height: 1.55;
    color: var(--color-text-secondary);
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── Category Cards ── */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.category-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    transition: box-shadow 0.2s, transform 0.2s;
}
.category-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}
.category-card-img {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-bg-alt);
}
.category-card-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 16px;
    transition: transform 0.3s;
}
.category-card:hover .category-card-img img { transform: scale(1.05); }
.category-card-body {
    padding: 20px;
    text-align: center;
}
.category-card-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

/* ── Product Gallery ── */
.product-gallery {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.product-gallery-main {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: sticky;
    top: 88px;
}
.product-gallery-main img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
}
.product-gallery-thumbs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.product-gallery-thumb {
    width: 72px;
    height: 72px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg-alt);
    cursor: pointer;
    padding: 0;
    overflow: hidden;
    transition: border-color 0.15s, box-shadow 0.15s;
    flex-shrink: 0;
}
.product-gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 4px;
}
.product-gallery-thumb:hover {
    border-color: var(--color-primary);
}
.product-gallery-thumb.active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(3,105,161,0.1);
}

/* ── Author Box ── */
.author-box {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-top: 48px;
    padding: 28px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}
.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}
.author-box-name {
    font-weight: 600;
    font-size: 18px;
    margin-bottom: 6px;
}
.author-box-bio {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 768px) {
    .author-box { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .product-card-meta { flex-direction: column; align-items: flex-start; gap: 8px; }
    .product-card-btn { align-self: stretch; text-align: center; justify-content: center; }
}