/* ============================================================
   KENIN Carbide Theme — main.css
   Industrial B2B · Tungsten Carbide Manufacturer
   ============================================================ */

/* ── Design Tokens ──────────────────────────────────────────────────────────── */
:root {
  --kenin-primary:        #1a3a5c;   /* deep navy */
  --kenin-primary-dark:   #122840;
  --kenin-primary-light:  #2a5080;
  --kenin-accent:         #e07b10;   /* industrial amber */
  --kenin-accent-dark:    #c06008;
  --kenin-text:           #1e1e1e;
  --kenin-text-muted:     #5a6270;
  --kenin-bg:             #ffffff;
  --kenin-bg-light:       #f4f6f9;
  --kenin-bg-dark:        #0e2035;
  --kenin-border:         #dde3eb;
  --kenin-border-light:   #edf0f5;
  --kenin-metal:          #6b7685;
  --kenin-radius-sm:      4px;
  --kenin-radius:         6px;
  --kenin-radius-lg:      12px;
  --kenin-shadow-sm:      0 1px 4px rgba(0,0,0,.06);
  --kenin-shadow:         0 2px 12px rgba(0,0,0,.10);
  --kenin-shadow-lg:      0 6px 28px rgba(0,0,0,.14);
  --kenin-max-width:      1200px;
  --kenin-nav-height:     64px;
  --kenin-topbar-height:  36px;
  --kenin-transition:     0.22s ease;
  --kenin-font:           'Segoe UI', 'Arial', sans-serif;
  --kenin-font-mono:      'Consolas', 'Courier New', monospace;
}

/* ── Reset & Base ────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--kenin-font);
  color: var(--kenin-text);
  background: var(--kenin-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--kenin-primary); text-decoration: none; transition: color var(--kenin-transition); }
a:hover { color: var(--kenin-accent); }

ul, ol { list-style: none; }

/* ── Typography ─────────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--kenin-primary);
  margin-bottom: .5em;
}
h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
h4 { font-size: 1.1rem; }

p { margin-bottom: 1rem; color: var(--kenin-text-muted); }
p:last-child { margin-bottom: 0; }

.kenin-article-body p,
.kenin-page-body p,
.kenin-industry-body p { color: var(--kenin-text); }

/* ── Container ──────────────────────────────────────────────────────────────── */
.kenin-container {
  max-width: var(--kenin-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Sections ───────────────────────────────────────────────────────────────── */
.kenin-section,
.kenin-product-categories,
.kenin-advantages,
.kenin-industries,
.kenin-quality,
.kenin-factory,
.kenin-latest-posts,
.kenin-home-cta,
.kenin-product-archive-cta,
.kenin-industry-archive-cta,
.kenin-category-cta,
.kenin-industry-cta,
.kenin-post-cta,
.kenin-category-intro,
.kenin-child-categories,
.kenin-product-grid-section,
.kenin-category-advantages,
.kenin-category-applications,
.kenin-category-custom-options,
.kenin-category-faq,
.kenin-product-hero,
.kenin-product-gallery,
.kenin-product-content,
.kenin-product-specs,
.kenin-product-applications,
.kenin-product-custom-options,
.kenin-product-drawing-note,
.kenin-product-industries,
.kenin-product-faq,
.kenin-related-products,
.kenin-product-inquiry,
.kenin-industry-hero,
.kenin-industry-content,
.kenin-industry-related-categories,
.kenin-industry-related-products,
.kenin-related-posts { padding: 56px 0; }

.kenin-section-header { text-align: center; margin-bottom: 40px; }
.kenin-section-title { color: var(--kenin-primary); margin-bottom: .35em; }
.kenin-section-footer { text-align: center; margin-top: 40px; }

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.kenin-btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--kenin-radius);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .3px;
  cursor: pointer;
  transition: background var(--kenin-transition), color var(--kenin-transition),
              border-color var(--kenin-transition), box-shadow var(--kenin-transition);
  border: 2px solid transparent;
  text-align: center;
  line-height: 1.4;
}
.kenin-btn-primary {
  background: var(--kenin-accent);
  color: #fff;
  border-color: var(--kenin-accent);
}
.kenin-btn-primary:hover {
  background: var(--kenin-accent-dark);
  border-color: var(--kenin-accent-dark);
  color: #fff;
  box-shadow: 0 4px 16px rgba(224,123,16,.35);
}
.kenin-btn-outline {
  background: transparent;
  color: var(--kenin-primary);
  border-color: var(--kenin-primary);
}
.kenin-btn-outline:hover {
  background: var(--kenin-primary);
  color: #fff;
}

/* ── Links ──────────────────────────────────────────────────────────────────── */
.kenin-link-more {
  font-weight: 600;
  font-size: .9rem;
  color: var(--kenin-accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.kenin-link-more:hover { color: var(--kenin-accent-dark); text-decoration: underline; }

/* ── Tables ─────────────────────────────────────────────────────────────────── */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 14px; border: 1px solid var(--kenin-border); font-size: .95rem; }
th { background: var(--kenin-bg-light); font-weight: 600; color: var(--kenin-primary); text-align: left; }
tr:nth-child(even) td { background: var(--kenin-bg-light); }

/* ── Empty / Notices ────────────────────────────────────────────────────────── */
.kenin-empty-notice {
  padding: 24px;
  background: var(--kenin-bg-light);
  border-left: 4px solid var(--kenin-border);
  border-radius: var(--kenin-radius);
  color: var(--kenin-text-muted);
  margin-bottom: 24px;
}


/* ╔══════════════════════════════════════════════════════════════════════════
   HEADER
══════════════════════════════════════════════════════════════════════════╗ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  box-shadow: 0 1px 0 var(--kenin-border);
  transition: box-shadow var(--kenin-transition);
}
.site-header.is-scrolled { box-shadow: var(--kenin-shadow); }

/* Top Bar */
.kenin-topbar {
  background: var(--kenin-bg-dark);
  color: rgba(255,255,255,.75);
  font-size: .82rem;
  height: var(--kenin-topbar-height);
}
.kenin-topbar-inner {
  display: flex;
  align-items: center;
  height: 100%;
}
.kenin-topbar-list {
  display: flex;
  gap: 24px;
  align-items: center;
}
.kenin-topbar-item a {
  color: rgba(255,255,255,.75);
  font-size: .82rem;
  transition: color var(--kenin-transition);
}
.kenin-topbar-item a:hover { color: var(--kenin-accent); }

/* Main Header */
.kenin-header-main { background: #fff; height: var(--kenin-nav-height); }
.kenin-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

/* Logo */
.kenin-logo a { display: flex; align-items: center; gap: 10px; }
.kenin-logo img, .kenin-logo .custom-logo { max-height: 44px; width: auto; }
.kenin-logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--kenin-primary);
  letter-spacing: -.3px;
  white-space: nowrap;
}

/* Nav */
.kenin-main-nav { flex: 1; display: flex; justify-content: center; }
.kenin-nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.kenin-nav-item > a,
.kenin-nav-list > li > a {
  display: block;
  padding: 8px 14px;
  font-size: .92rem;
  font-weight: 600;
  color: var(--kenin-text);
  border-radius: var(--kenin-radius-sm);
  transition: color var(--kenin-transition), background var(--kenin-transition);
  white-space: nowrap;
}
.kenin-nav-item > a:hover,
.kenin-nav-list > li > a:hover { color: var(--kenin-primary); background: var(--kenin-bg-light); }

/* Products Dropdown */
.kenin-has-dropdown,
.kenin-nav-list > .menu-item-has-children { position: relative; }
.kenin-products-dropdown,
.kenin-nav-list > .menu-item-has-children > .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: #fff;
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius);
  box-shadow: var(--kenin-shadow-lg);
  min-width: 220px;
  padding: 8px 0;
  z-index: 900;
}
.kenin-has-dropdown:hover .kenin-products-dropdown,
.kenin-nav-list > .menu-item-has-children:hover > .sub-menu { display: block; }
.kenin-dropdown-item > a,
.kenin-products-dropdown li > a,
.kenin-nav-list .sub-menu li > a {
  display: block;
  padding: 9px 20px;
  font-size: .9rem;
  color: var(--kenin-text);
  transition: background var(--kenin-transition), color var(--kenin-transition);
}
.kenin-dropdown-item > a:hover,
.kenin-products-dropdown li > a:hover,
.kenin-nav-list .sub-menu li > a:hover {
  background: var(--kenin-bg-light);
  color: var(--kenin-primary);
}
.kenin-dropdown-arrow { font-size: .65rem; opacity: .6; }

/* Sub-dropdown (level 2) */
.kenin-has-children { position: relative; }
.kenin-sub-dropdown {
  display: none;
  position: absolute;
  left: 100%;
  top: 0;
  background: #fff;
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius);
  box-shadow: var(--kenin-shadow);
  min-width: 200px;
  padding: 8px 0;
  z-index: 910;
}
.kenin-has-children:hover .kenin-sub-dropdown { display: block; }

/* Header CTA */
.kenin-header-cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

/* Mobile Toggle */
.kenin-mobile-toggle {
  display: none;
  background: none;
  border: 1.5px solid var(--kenin-border);
  border-radius: var(--kenin-radius-sm);
  padding: 7px 14px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--kenin-primary);
  cursor: pointer;
  white-space: nowrap;
}


/* ╔══════════════════════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════════════════════╗ */

.site-footer { background: var(--kenin-bg-dark); color: rgba(255,255,255,.8); }

.kenin-footer-main { padding: 56px 0 40px; }
.kenin-footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1.2fr;
  gap: 40px 32px;
}

.kenin-footer-heading {
  color: #fff;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  font-weight: 700;
}
.kenin-footer-brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.kenin-footer-desc { font-size: .88rem; color: rgba(255,255,255,.6); line-height: 1.65; }

.kenin-footer-links { display: flex; flex-direction: column; gap: 8px; }
.kenin-footer-links li a {
  font-size: .88rem;
  color: rgba(255,255,255,.65);
  transition: color var(--kenin-transition);
}
.kenin-footer-links li a:hover { color: var(--kenin-accent); }

.kenin-footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.kenin-footer-social li a {
  display: inline-block;
  padding: 5px 12px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--kenin-radius-sm);
  font-size: .82rem;
  color: rgba(255,255,255,.75);
  transition: all var(--kenin-transition);
}
.kenin-footer-social li a:hover {
  background: var(--kenin-accent);
  border-color: var(--kenin-accent);
  color: #fff;
}

.kenin-footer-address p { font-size: .88rem; color: rgba(255,255,255,.65); margin-bottom: 8px; }
.kenin-footer-address a { color: rgba(255,255,255,.65); }
.kenin-footer-address a:hover { color: var(--kenin-accent); }

.kenin-footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 18px 0;
}
.kenin-footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; }
.kenin-copyright { font-size: .82rem; color: rgba(255,255,255,.45); }


/* ╔══════════════════════════════════════════════════════════════════════════
   HERO — HOME
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  background: var(--kenin-bg-dark) center/cover no-repeat;
  overflow: hidden;
}
.kenin-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(14,32,53,.88) 0%, rgba(26,58,92,.72) 100%);
}
.kenin-hero-inner {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: 700px;
}
.kenin-hero-title {
  color: #fff;
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1.15;
  margin-bottom: 16px;
}
.kenin-hero-subtitle {
  color: rgba(255,255,255,.82);
  font-size: 1.05rem;
  max-width: 600px;
  margin-bottom: 32px;
}
.kenin-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Archive Hero */
.kenin-product-archive-hero,
.kenin-archive-hero {
  background: var(--kenin-primary);
  padding: 60px 0;
}
.kenin-archive-hero-inner { max-width: 700px; }
.kenin-archive-title { color: #fff; margin-bottom: 12px; }
.kenin-archive-subtitle { color: rgba(255,255,255,.75); font-size: 1rem; }


/* ╔══════════════════════════════════════════════════════════════════════════
   STATS BAR
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-stats {
  background: var(--kenin-primary);
  padding: 36px 0;
}
.kenin-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  text-align: center;
}
.kenin-stat-item { padding: 8px; }
.kenin-stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--kenin-accent);
  line-height: 1;
  margin-bottom: 6px;
}
.kenin-stat-label { font-size: .83rem; color: rgba(255,255,255,.7); text-transform: uppercase; letter-spacing: .5px; }


/* ╔══════════════════════════════════════════════════════════════════════════
   CARDS — SHARED GRID
══════════════════════════════════════════════════════════════════════════╗ */

/* Category Grid */
.kenin-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.kenin-cat-card {
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius-lg);
  overflow: hidden;
  background: #fff;
  transition: box-shadow var(--kenin-transition), transform var(--kenin-transition);
}
.kenin-cat-card:hover { box-shadow: var(--kenin-shadow-lg); transform: translateY(-3px); }
.kenin-cat-card-image img { width: 100%; height: 180px; object-fit: cover; display: block; }
.kenin-cat-card-body,
.kenin-category-card-content { padding: 20px; }
.kenin-cat-card-title,
.kenin-category-card-title { font-size: 1rem; margin-bottom: 8px; }
.kenin-cat-card-desc,
.kenin-category-card-description { font-size: .87rem; color: var(--kenin-text-muted); margin-bottom: 12px; line-height: 1.5; }

/* Category Card (template-part) */
.kenin-category-card {
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius-lg);
  overflow: hidden;
  background: #fff;
  transition: box-shadow var(--kenin-transition), transform var(--kenin-transition);
}
.kenin-category-card:hover { box-shadow: var(--kenin-shadow-lg); transform: translateY(-3px); }
.kenin-category-card-image img { width: 100%; height: 180px; object-fit: cover; }
.kenin-category-card-placeholder { height: 180px; background: var(--kenin-bg-light); }

/* Product Grid */
.kenin-product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.kenin-product-card {
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius-lg);
  overflow: hidden;
  background: #fff;
  transition: box-shadow var(--kenin-transition), transform var(--kenin-transition);
}
.kenin-product-card:hover { box-shadow: var(--kenin-shadow-lg); transform: translateY(-3px); }
.kenin-product-card-image img { width: 100%; height: 200px; object-fit: cover; display: block; }
.kenin-product-card-placeholder { height: 200px; background: var(--kenin-bg-light); }
.kenin-product-card-content { padding: 18px; }
.kenin-product-card-category { font-size: .78rem; text-transform: uppercase; letter-spacing: .5px; color: var(--kenin-accent); margin-bottom: 8px; font-weight: 600; }
.kenin-product-card-category a { color: inherit; }
.kenin-product-card-title { font-size: 1rem; margin-bottom: 8px; }
.kenin-product-card-title a { color: var(--kenin-primary); }
.kenin-product-card-title a:hover { color: var(--kenin-accent); }
.kenin-product-card-excerpt { font-size: .87rem; color: var(--kenin-text-muted); margin-bottom: 12px; line-height: 1.5; }

/* Industry Grid */
.kenin-industries-grid,
.kenin-industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}
.kenin-industry-card {
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius-lg);
  overflow: hidden;
  background: #fff;
  transition: box-shadow var(--kenin-transition), transform var(--kenin-transition);
}
.kenin-industry-card:hover { box-shadow: var(--kenin-shadow-lg); transform: translateY(-3px); }
.kenin-industry-card-image img { width: 100%; height: 200px; object-fit: cover; display: block; }
.kenin-industry-card-placeholder { height: 200px; background: var(--kenin-bg-light); }
.kenin-industry-card-content { padding: 20px; }
.kenin-industry-card-title { font-size: 1.05rem; margin-bottom: 8px; }
.kenin-industry-card-title a { color: var(--kenin-primary); }
.kenin-industry-card-title a:hover { color: var(--kenin-accent); }
.kenin-industry-card-excerpt { font-size: .87rem; color: var(--kenin-text-muted); margin-bottom: 12px; line-height: 1.5; }

/* Posts Grid */
.kenin-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}
.kenin-post-card {
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius-lg);
  overflow: hidden;
  background: #fff;
  transition: box-shadow var(--kenin-transition), transform var(--kenin-transition);
}
.kenin-post-card:hover { box-shadow: var(--kenin-shadow-lg); transform: translateY(-3px); }
.kenin-post-card-image img { width: 100%; height: 190px; object-fit: cover; display: block; }
.kenin-post-card-body { padding: 20px; }
.kenin-post-date { font-size: .78rem; color: var(--kenin-metal); display: block; margin-bottom: 6px; }
.kenin-post-card-title { font-size: 1rem; margin-bottom: 8px; }
.kenin-post-card-title a { color: var(--kenin-primary); }
.kenin-post-card-title a:hover { color: var(--kenin-accent); }
.kenin-post-card-excerpt { font-size: .87rem; color: var(--kenin-text-muted); margin-bottom: 12px; line-height: 1.5; }


/* ╔══════════════════════════════════════════════════════════════════════════
   ADVANTAGES
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-advantages { background: var(--kenin-bg-light); }
.kenin-advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 28px;
}
.kenin-advantage-item {
  background: #fff;
  border-left: 4px solid var(--kenin-accent);
  border-radius: var(--kenin-radius);
  padding: 24px;
  box-shadow: var(--kenin-shadow-sm);
}
.kenin-advantage-title { font-size: 1rem; color: var(--kenin-primary); margin-bottom: 10px; }
.kenin-advantage-desc { font-size: .88rem; line-height: 1.65; }


/* ╔══════════════════════════════════════════════════════════════════════════
   QUALITY & FACTORY STEPS
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-quality { background: var(--kenin-primary); }
.kenin-quality .kenin-section-title { color: #fff; text-align: center; margin-bottom: 32px; }
.kenin-quality-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  counter-reset: quality-step;
}
.kenin-quality-step {
  counter-increment: quality-step;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--kenin-radius);
  padding: 20px 18px 20px 50px;
  color: rgba(255,255,255,.88);
  font-size: .9rem;
  position: relative;
}
.kenin-quality-step::before {
  content: counter(quality-step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--kenin-accent);
}

.kenin-factory { background: var(--kenin-bg-light); }
.kenin-factory-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
  counter-reset: factory-step;
}
.kenin-factory-step {
  counter-increment: factory-step;
  background: #fff;
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius);
  padding: 18px 16px 18px 46px;
  font-size: .9rem;
  color: var(--kenin-text);
  position: relative;
  box-shadow: var(--kenin-shadow-sm);
}
.kenin-factory-step::before {
  content: counter(factory-step);
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  font-weight: 800;
  color: var(--kenin-primary);
}


/* ╔══════════════════════════════════════════════════════════════════════════
   CTA SECTIONS
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-home-cta,
.kenin-product-archive-cta,
.kenin-industry-archive-cta,
.kenin-category-cta,
.kenin-industry-cta,
.kenin-post-cta {
  background: var(--kenin-primary);
  text-align: center;
}
.kenin-cta-inner { max-width: 680px; margin: 0 auto; }
.kenin-cta-title { color: #fff; font-size: clamp(1.3rem, 3vw, 1.85rem); margin-bottom: 16px; }
.kenin-cta-desc { color: rgba(255,255,255,.78); margin-bottom: 28px; font-size: 1rem; }


/* ╔══════════════════════════════════════════════════════════════════════════
   CATEGORY PAGE
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-category-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 48px 0;
}
.kenin-category-hero-image img { width: 100%; border-radius: var(--kenin-radius-lg); max-height: 360px; object-fit: cover; }
.kenin-category-title { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: 14px; }
.kenin-category-desc { font-size: 1rem; line-height: 1.7; }

.kenin-child-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.kenin-child-cat-card {
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius);
  overflow: hidden;
  background: #fff;
  transition: box-shadow var(--kenin-transition);
}
.kenin-child-cat-card:hover { box-shadow: var(--kenin-shadow); }
.kenin-child-cat-image img { width: 100%; height: 140px; object-fit: cover; }
.kenin-child-cat-body { padding: 16px; }
.kenin-child-cat-name { font-size: .95rem; margin-bottom: 6px; }
.kenin-child-cat-desc { font-size: .83rem; color: var(--kenin-text-muted); margin-bottom: 10px; }

.kenin-advantages-list,
.kenin-applications-list,
.kenin-custom-options-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 10px;
}
.kenin-advantages-list li,
.kenin-applications-list li,
.kenin-custom-options-list li {
  padding: 10px 14px 10px 32px;
  background: var(--kenin-bg-light);
  border-radius: var(--kenin-radius-sm);
  font-size: .9rem;
  position: relative;
}
.kenin-advantages-list li::before { content: '✓'; position: absolute; left: 10px; color: var(--kenin-accent); font-weight: 700; }
.kenin-applications-list li::before { content: '›'; position: absolute; left: 12px; color: var(--kenin-primary); font-weight: 700; }
.kenin-custom-options-list li::before { content: '·'; position: absolute; left: 12px; color: var(--kenin-metal); font-weight: 700; }


/* ╔══════════════════════════════════════════════════════════════════════════
   PRODUCT DETAIL
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-product-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.kenin-product-hero-image img { width: 100%; border-radius: var(--kenin-radius-lg); }
.kenin-product-category { font-size: .82rem; text-transform: uppercase; letter-spacing: .5px; font-weight: 600; margin-bottom: 10px; }
.kenin-product-category a { color: var(--kenin-accent); }
.kenin-product-title { font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: 10px; }
.kenin-product-subtitle { color: var(--kenin-text-muted); font-size: 1.05rem; margin-bottom: 24px; }

.kenin-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.kenin-gallery-item img { width: 100%; height: 170px; object-fit: cover; border-radius: var(--kenin-radius); cursor: pointer; transition: opacity var(--kenin-transition); }
.kenin-gallery-item img:hover { opacity: .85; }

.kenin-specs-table { overflow-x: auto; display: block; }
.kenin-specs-table table { min-width: 480px; }
.kenin-specs-table th { width: 40%; }

.kenin-product-drawing-note { background: var(--kenin-bg-light); padding: 28px; border-radius: var(--kenin-radius); }
.kenin-drawing-note-text { font-style: italic; color: var(--kenin-text-muted); margin: 0; }

.kenin-product-inquiry { background: var(--kenin-bg-light); border-radius: var(--kenin-radius-lg); }
.kenin-inquiry-header { margin-bottom: 32px; }
.kenin-inquiry-desc { color: var(--kenin-text-muted); max-width: 560px; }


/* ╔══════════════════════════════════════════════════════════════════════════
   FAQ
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-faq-list { display: flex; flex-direction: column; gap: 6px; }
.kenin-faq-item {
  border: 1px solid var(--kenin-border);
  border-radius: var(--kenin-radius);
  overflow: hidden;
}
.kenin-faq-question {
  padding: 16px 20px;
  background: var(--kenin-bg-light);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  position: relative;
  padding-right: 44px;
  user-select: none;
  color: var(--kenin-primary);
  transition: background var(--kenin-transition);
}
.kenin-faq-question::after {
  content: '+';
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--kenin-accent);
  transition: transform var(--kenin-transition);
}
.kenin-faq-item.is-active .kenin-faq-question { background: var(--kenin-primary); color: #fff; }
.kenin-faq-item.is-active .kenin-faq-question::after { content: '−'; color: rgba(255,255,255,.8); transform: translateY(-50%); }
.kenin-faq-answer {
  display: none;
  padding: 16px 20px;
  font-size: .9rem;
  line-height: 1.7;
  border-top: 1px solid var(--kenin-border);
  color: var(--kenin-text);
  background: #fff;
  margin: 0;
}
.kenin-faq-item.is-active .kenin-faq-answer { display: block; }


/* ╔══════════════════════════════════════════════════════════════════════════
   INQUIRY FORM
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-inquiry-form { max-width: 640px; }
.kenin-form-field { margin-bottom: 20px; }
.kenin-form-field label {
  display: block;
  font-size: .88rem;
  font-weight: 600;
  color: var(--kenin-primary);
  margin-bottom: 6px;
}
.kenin-form-field label span { color: var(--kenin-accent); margin-left: 2px; }
.kenin-form-field input,
.kenin-form-field textarea,
.kenin-form-field select {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--kenin-border);
  border-radius: var(--kenin-radius);
  font-size: .92rem;
  font-family: var(--kenin-font);
  color: var(--kenin-text);
  background: #fff;
  transition: border-color var(--kenin-transition), box-shadow var(--kenin-transition);
  outline: none;
}
.kenin-form-field input:focus,
.kenin-form-field textarea:focus,
.kenin-form-field select:focus {
  border-color: var(--kenin-primary);
  box-shadow: 0 0 0 3px rgba(26,58,92,.1);
}
.kenin-form-field textarea { min-height: 130px; resize: vertical; }
.kenin-form-submit { margin-top: 8px; }
.kenin-inquiry-success {
  padding: 20px 24px;
  background: #e8f5e9;
  border-left: 4px solid #4caf50;
  border-radius: var(--kenin-radius);
  color: #2e7d32;
  font-weight: 600;
}
.kenin-inquiry-error {
  padding: 16px 20px;
  background: #fdecea;
  border-left: 4px solid #e53935;
  border-radius: var(--kenin-radius);
  color: #c62828;
  margin-bottom: 20px;
}


/* ╔══════════════════════════════════════════════════════════════════════════
   BREADCRUMBS
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-breadcrumbs,
.kenin-breadcrumb { padding: 14px 0; font-size: .82rem; color: var(--kenin-text-muted); }
.kenin-breadcrumbs a,
.kenin-breadcrumb a { color: var(--kenin-text-muted); }
.kenin-breadcrumbs a:hover,
.kenin-breadcrumb a:hover { color: var(--kenin-accent); }
.kenin-breadcrumbs span,
.kenin-breadcrumb span { margin: 0 6px; opacity: .5; }


/* ╔══════════════════════════════════════════════════════════════════════════
   PAGINATION
══════════════════════════════════════════════════════════════════════════╗ */

.nav-links,
.kenin-pagination { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-top: 40px; }
.page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--kenin-border);
  border-radius: var(--kenin-radius-sm);
  font-size: .9rem;
  color: var(--kenin-text);
  transition: all var(--kenin-transition);
}
.page-numbers:hover { background: var(--kenin-primary); color: #fff; border-color: var(--kenin-primary); }
.page-numbers.current { background: var(--kenin-primary); color: #fff; border-color: var(--kenin-primary); }
.page-numbers.prev, .page-numbers.next { width: auto; padding: 0 14px; }


/* ╔══════════════════════════════════════════════════════════════════════════
   ARTICLE / SINGLE POST
══════════════════════════════════════════════════════════════════════════╗ */

.kenin-article-hero-image img { width: 100%; max-height: 460px; object-fit: cover; border-radius: var(--kenin-radius-lg); margin-bottom: 32px; }
.kenin-article-header { margin-bottom: 32px; }
.kenin-article-categories { font-size: .82rem; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 10px; }
.kenin-article-categories a { color: var(--kenin-accent); font-weight: 600; }
.kenin-article-title { font-size: clamp(1.6rem, 4vw, 2.4rem); }
.kenin-article-meta { font-size: .82rem; color: var(--kenin-metal); margin-top: 8px; }
.kenin-article-meta time, .kenin-article-meta .kenin-article-author { margin-right: 16px; }
.kenin-article-body { max-width: 760px; font-size: 1rem; line-height: 1.8; }
.kenin-article-body h2, .kenin-article-body h3 { margin-top: 1.5em; }
.kenin-article-body ul, .kenin-article-body ol { padding-left: 20px; margin-bottom: 1em; list-style: disc; }
.kenin-article-footer { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--kenin-border); }
.kenin-article-tags { font-size: .85rem; }
.kenin-article-tags a { color: var(--kenin-primary); }

/* Page */
.kenin-page-hero { background: var(--kenin-primary); padding: 52px 0; }
.kenin-page-title { color: #fff; margin-bottom: 10px; }
.kenin-page-subtitle { color: rgba(255,255,255,.78); }
.kenin-page-content { max-width: 840px; margin: 0 auto; padding: 48px 0; }
.kenin-page-body { font-size: 1rem; line-height: 1.8; }
.kenin-page-body h2, .kenin-page-body h3 { margin-top: 1.5em; }
.kenin-page-body ul, .kenin-page-body ol { padding-left: 20px; list-style: disc; margin-bottom: 1em; }

/* Industry Detail */
.kenin-industry-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.kenin-industry-hero-image img { width: 100%; border-radius: var(--kenin-radius-lg); max-height: 380px; object-fit: cover; }
.kenin-industry-title { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: 14px; }
.kenin-industry-excerpt { font-size: 1rem; line-height: 1.7; }
.kenin-industry-body { font-size: 1rem; line-height: 1.8; max-width: 800px; }

/* 404 / Search */
.kenin-404 { min-height: 70vh; display: flex; align-items: center; }
.kenin-404-inner { text-align: center; padding: 80px 0; }
.kenin-404-code { font-size: 6rem; font-weight: 900; color: var(--kenin-border); line-height: 1; margin-bottom: 0; }
.kenin-404-title { font-size: 1.8rem; margin-bottom: 14px; }
.kenin-404-desc { color: var(--kenin-text-muted); max-width: 480px; margin: 0 auto 28px; }
.kenin-404-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 32px; }
.kenin-404-search { max-width: 400px; margin: 0 auto; }

.kenin-search-list { display: flex; flex-direction: column; gap: 24px; }
.kenin-search-item { border-bottom: 1px solid var(--kenin-border-light); padding-bottom: 24px; }
.kenin-search-item-type { font-size: .75rem; text-transform: uppercase; letter-spacing: .5px; color: var(--kenin-accent); font-weight: 700; margin-bottom: 6px; display: block; }
.kenin-search-item-title { font-size: 1.1rem; margin-bottom: 6px; }
.kenin-search-item-excerpt { font-size: .9rem; color: var(--kenin-text-muted); }


/* ╔══════════════════════════════════════════════════════════════════════════
   RESPONSIVE — TABLET  ≤ 1024px
══════════════════════════════════════════════════════════════════════════╗ */

@media (max-width: 1024px) {
  .kenin-footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .kenin-footer-column:first-child { grid-column: 1 / -1; }
  .kenin-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .kenin-product-hero { gap: 28px; }
  .kenin-category-hero { gap: 28px; }
  .kenin-industry-hero { gap: 28px; }
}


/* ╔══════════════════════════════════════════════════════════════════════════
   RESPONSIVE — MOBILE  ≤ 768px
══════════════════════════════════════════════════════════════════════════╗ */

@media (max-width: 768px) {

  /* Header */
  .kenin-topbar-list { gap: 12px; }
  .kenin-header-inner { gap: 12px; }
  .kenin-main-nav {
    display: none;
    position: fixed;
    top: calc(var(--kenin-topbar-height) + var(--kenin-nav-height));
    left: 0; right: 0;
    background: #fff;
    border-top: 1px solid var(--kenin-border);
    box-shadow: var(--kenin-shadow-lg);
    padding: 12px 0 20px;
    z-index: 999;
    overflow-y: auto;
    max-height: calc(100vh - var(--kenin-topbar-height) - var(--kenin-nav-height));
    flex-direction: column;
    align-items: stretch;
  }
  .kenin-main-nav.is-active { display: flex; }
  .kenin-nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0 16px;
  }
  .kenin-nav-item > a,
  .kenin-nav-list > li > a {
    padding: 14px 8px;
    border-bottom: 1px solid var(--kenin-border-light);
    border-radius: 0;
  }
  .kenin-products-dropdown,
  .kenin-nav-list > .menu-item-has-children > .sub-menu {
    display: none;
    position: static;
    box-shadow: none;
    border: none;
    border-left: 3px solid var(--kenin-accent);
    border-radius: 0;
    padding: 0 0 0 12px;
    margin: 4px 0;
  }
  .kenin-has-dropdown.is-open .kenin-products-dropdown,
  .kenin-nav-list > .menu-item-has-children.is-open > .sub-menu { display: block; }
  .kenin-sub-dropdown { display: block; position: static; box-shadow: none; border: none; padding-left: 12px; }
  .kenin-mobile-toggle { display: inline-block; }
  .kenin-header-cta .kenin-btn-primary { display: none; } /* hide quote btn on mobile, keep toggle */

  /* Hero */
  .kenin-hero { min-height: 360px; }
  .kenin-hero-inner { padding: 48px 24px; }
  .kenin-hero-actions { flex-direction: column; align-items: flex-start; }

  /* Stats */
  .kenin-stats-grid { grid-template-columns: repeat(2, 1fr); }

  /* Grids */
  .kenin-cat-grid,
  .kenin-product-grid,
  .kenin-industries-grid,
  .kenin-industry-grid,
  .kenin-posts-grid,
  .kenin-child-cat-grid,
  .kenin-advantages-grid { grid-template-columns: 1fr; }

  /* Product/Category hero → stacked */
  .kenin-product-hero,
  .kenin-category-hero,
  .kenin-industry-hero { grid-template-columns: 1fr; }

  /* Specs table */
  .kenin-specs-table { overflow-x: auto; -webkit-overflow-scrolling: touch; }

  /* Quality / Factory */
  .kenin-quality-steps,
  .kenin-factory-steps { grid-template-columns: 1fr; }

  /* Footer */
  .kenin-footer-grid { grid-template-columns: 1fr 1fr; }
  .kenin-footer-column:first-child { grid-column: 1 / -1; }

  /* Pagination */
  .nav-links { gap: 4px; }
  .page-numbers { width: 36px; height: 36px; font-size: .82rem; }

  /* Form */
  .kenin-inquiry-form { max-width: 100%; }

  /* Archive hero */
  .kenin-product-archive-hero,
  .kenin-archive-hero { padding: 36px 0; }

  /* Search / 404 */
  .kenin-404-code { font-size: 4rem; }
  .kenin-404-actions { flex-direction: column; align-items: center; }
}


/* ╔══════════════════════════════════════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE  ≤ 480px
══════════════════════════════════════════════════════════════════════════╗ */

@media (max-width: 480px) {
  .kenin-topbar { display: none; } /* hide topbar on tiny screens */
  .kenin-stats-grid { grid-template-columns: 1fr 1fr; }
  .kenin-footer-grid { grid-template-columns: 1fr; }
  .kenin-hero-actions .kenin-btn { width: 100%; text-align: center; }
}