/* ============================================
   GreenPort GPIE.NET - Component Styles
   ============================================ */

/* --- Navigation --- */
.main-nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: var(--z-nav);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 60px;
  height: var(--nav-height);
}

.main-nav .logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.main-nav .logo-link img {
  height: 36px;
  border-radius: var(--radius-sm);
}

.main-nav .logo-link span {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 1px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: color var(--transition-fast), transform var(--transition-fast);
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary-light);
  border-radius: 1px;
  transition: width var(--transition-normal);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  transform: translateY(-1px);
}

.nav-lang-btn {
  font-size: 12px;
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.nav-lang-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: all var(--transition-fast);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 20px;
  z-index: calc(var(--z-nav) - 1);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 12px 0;
  color: var(--color-text);
  font-size: 15px;
  font-weight: 500;
  border-bottom: 1px solid var(--color-border-light);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

/* --- Hero --- */
.hero {
  min-height: 60vh;
  background: linear-gradient(135deg, #0f2557 0%, #1e3a8a 40%, #3b5bdb 100%);
  display: flex;
  align-items: center;
  padding: 100px 60px 60px;
  position: relative;
  overflow: hidden;
}

.hero-slides {
  position: absolute;
  top: 0;
  right: 0;
  width: 55%;
  height: 100%;
}

.hero-slides .slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s ease;
  clip-path: polygon(15% 0, 100% 0, 100% 100%, 0% 100%);
}

.hero-slides .slide.active {
  opacity: 0.25;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 20px;
  padding: 6px 18px;
  font-size: 12px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 44px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero h1 em {
  font-style: normal;
  color: var(--color-accent);
}

.hero .subtitle {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  line-height: 1.8;
  margin-bottom: 36px;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
  padding: 13px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: inline-block;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.btn-outline {
  background: transparent;
  color: #fff;
  padding: 13px 32px;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 8px;
  font-size: 15px;
  text-decoration: none;
  transition: all var(--transition-fast);
  display: inline-block;
}

.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.7);
}

/* --- Stats Bar --- */
.stats-bar {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 36px 40px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1000px;
  margin: -40px auto 0;
  position: relative;
  z-index: 2;
}

.stat-item { text-align: center; }
.stat-item .num { font-size: 32px; font-weight: 800; color: var(--color-primary-light); }
.stat-item .label { font-size: 13px; color: var(--color-text-muted); margin-top: 4px; }

/* --- Cards --- */
.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.card-blue { border-top: 4px solid var(--color-primary-light); }
.card-green { border-top: 4px solid var(--color-success); }
.card-orange { border-top: 4px solid var(--color-warning); }
.card-red { border-top: 4px solid var(--color-danger); }
.card-purple { border-top: 4px solid var(--color-purple); }
.card-teal { border-top: 4px solid var(--color-teal); }

/* --- Feature Cards --- */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-md);
  border-top: 4px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.feat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.feat-icon { font-size: 32px; margin-bottom: 12px; }
.feat-card h4 { font-size: 15px; font-weight: 700; color: var(--color-primary); margin-bottom: 6px; }
.feat-card p { font-size: 13px; color: var(--color-text-muted); line-height: 1.7; }

/* --- Spec Cards --- */
.spec-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.spec-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.spec-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-hover);
}

.spec-card .sc-label { font-size: 13px; color: var(--color-text-light); margin-bottom: 8px; }
.spec-card .sc-value { font-size: 22px; font-weight: 800; color: var(--color-primary-light); }
.spec-card .sc-sub { font-size: 12px; color: var(--color-text-muted); margin-top: 6px; }

/* --- Scene Cards --- */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.scene-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.scene-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
}

.scene-card .scene-icon { font-size: 36px; margin-bottom: 10px; }
.scene-card h4 { font-size: 14px; font-weight: 700; color: var(--color-primary); margin-bottom: 4px; }
.scene-card p { font-size: 12px; color: #888; }

/* --- Coop Cards --- */
.coop-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.coop-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: transform var(--transition-fast);
}

.coop-card:hover { transform: translateY(-4px); }
.coop-card .coop-icon { font-size: 36px; margin-bottom: 12px; }
.coop-card h4 { font-size: 15px; font-weight: 700; color: var(--color-primary); margin-bottom: 8px; }
.coop-card p { font-size: 13px; color: var(--color-text-muted); line-height: 1.7; }

/* --- Highlight Box --- */
.highlight-box {
  background: #eef2ff;
  border-left: 4px solid var(--color-primary-light);
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-primary-light);
  margin-top: 16px;
}

/* --- Compare Table --- */
.compare-wrap {
  background: #fff;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.compare-table th {
  background: var(--color-primary);
  color: #fff;
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
}

.compare-table td {
  padding: 14px 18px;
  border-bottom: 1px solid #f0f0f0;
}

.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:hover { background: #f8f9ff; }
.compare-table .highlight {
  background: #e8f5e9;
  font-weight: 600;
  color: #2e7d32;
}

/* --- Install Flow --- */
.install-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  margin: 36px 0;
}

.flow-step {
  background: #fff;
  border: 2px solid #dbe4ff;
  border-radius: 12px;
  padding: 18px 20px;
  text-align: center;
  min-width: 130px;
  max-width: 180px;
}

.flow-step .fnum { font-size: 11px; color: var(--color-primary-light); font-weight: 700; margin-bottom: 4px; }
.flow-step .ftitle { font-size: 14px; font-weight: 700; color: var(--color-primary); }
.flow-step .fsub { font-size: 11px; color: #999; margin-top: 4px; }
.flow-arrow { font-size: 22px; color: var(--color-primary-light); padding: 18px 6px 0; }

/* --- VS Box --- */
.vs-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 32px 0;
}

.vs-item { border-radius: var(--radius-lg); padding: 28px 24px; }
.vs-item.old { background: #fff5f5; border: 1px solid #ffe3e3; }
.vs-item.new { background: #f0fff4; border: 1px solid #b2f2bb; }
.vs-item h4 { font-size: 16px; margin-bottom: 10px; }
.vs-item.old h4 { color: #c92a2a; }
.vs-item.new h4 { color: #2b8a3e; }
.vs-item p { font-size: 14px; color: #555; line-height: 1.8; }

/* --- Service Banner --- */
.service-banner {
  background: linear-gradient(135deg, #1e3a8a, #3b5bdb);
  border-radius: var(--radius-2xl);
  padding: 60px;
  color: #fff;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.service-banner h3 { font-size: 28px; font-weight: 800; margin-bottom: 16px; color: var(--color-accent); }
.service-banner p { font-size: 15px; color: rgba(255,255,255,0.85); line-height: 1.9; margin-bottom: 12px; }
.service-banner .service-nums { display: flex; gap: 32px; margin-top: 20px; }
.service-banner .snum .sn-val { font-size: 28px; font-weight: 800; color: var(--color-accent); }
.service-banner .snum .sn-label { font-size: 12px; color: rgba(255,255,255,0.7); }

/* --- Contact Section --- */
.contact-section {
  background: #fff;
  border-radius: var(--radius-2xl);
  padding: 60px;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.contact-info h3 { font-size: 28px; font-weight: 800; color: var(--color-primary); margin-bottom: 20px; }
.contact-info .ci-row { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; }
.contact-info .ci-icon { font-size: 20px; min-width: 28px; text-align: center; padding-top: 2px; }
.contact-info .ci-label { font-size: 12px; color: #999; }
.contact-info .ci-value { font-size: 15px; color: #333; font-weight: 600; }
.contact-info .ci-value a { color: var(--color-link); text-decoration: none; }

.contact-qr { text-align: center; }
.contact-qr img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: #fff;
}
.contact-qr p { font-size: 13px; color: #999; margin-top: 10px; }

/* --- Gallery --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gallery-grid img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 12px;
  background: #e8ecff;
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.gallery-grid img:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(59,91,219,0.18);
}

/* --- Video Section --- */
.video-section {
  background: var(--color-bg-alt);
  border-radius: var(--radius-2xl);
  padding: 60px;
  margin: 0 auto;
  max-width: var(--container-max);
}

.video-wrap {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto 24px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.video-wrap video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
}

.video-desc {
  max-width: 800px;
  margin: 0 auto;
  font-size: 15px;
  color: #555;
  line-height: 1.9;
}

/* --- Modal / Welcome Popup --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: #fff;
  border-radius: var(--radius-2xl);
  padding: 48px 40px;
  max-width: 480px;
  width: 90%;
  text-align: center;
  box-shadow: 0 24px 80px rgba(0,0,0,0.2);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay.open .modal-card {
  transform: translateY(0);
}

.modal-card .modal-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  margin: 0 auto 20px;
  object-fit: contain;
}

.modal-card h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.modal-card .modal-subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

.modal-card .lang-options {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 24px;
}

.lang-btn {
  flex: 1;
  padding: 16px 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  background: #fff;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.lang-btn:hover {
  border-color: var(--color-primary-light);
  background: var(--color-bg-alt);
  transform: translateY(-2px);
}

.lang-btn .lang-icon { font-size: 28px; }
.lang-btn .lang-label { font-size: 14px; }

.countdown-text {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 16px;
}

.countdown-text .countdown-num {
  font-weight: 700;
  color: var(--color-primary-light);
}

/* --- Footer --- */
.main-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.5);
  text-align: center;
  padding: 36px 60px;
  font-size: 13px;
}

.main-footer .footer-brand {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}

/* --- Form Styles --- */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group label .required {
  color: var(--color-danger);
  margin-left: 2px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 15px;
  color: var(--color-text);
  background: #fff;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(59,91,219,0.15);
}

.form-input.error {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px rgba(224,49,49,0.1);
}

.form-error {
  font-size: 12px;
  color: var(--color-danger);
  margin-top: 4px;
  display: none;
}

.form-group.has-error .form-error {
  display: block;
}

textarea.form-input {
  min-height: 120px;
  resize: vertical;
}

.form-success {
  background: var(--color-success-bg);
  border: 1px solid #b2f2bb;
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  color: #2b8a3e;
  font-weight: 600;
  display: none;
}

.honeypot {
  position: absolute;
  left: -9999px;
  top: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

/* --- Map Image Placeholder --- */
.map-image-container {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.map-image-container img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .main-nav { padding: 0 20px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero { padding: 100px 24px 60px; min-height: auto; }
  .hero h1 { font-size: 30px; }
  .hero-slides { display: none; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); margin: -30px 20px 0; padding: 24px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .feat-grid { grid-template-columns: 1fr 1fr; }
  .spec-cards { grid-template-columns: 1fr 1fr; }
  .scene-grid { grid-template-columns: 1fr 1fr; }
  .coop-grid { grid-template-columns: 1fr 2fr; }
  .service-banner { grid-template-columns: 1fr; padding: 40px 24px; }
  .contact-section { grid-template-columns: 1fr; padding: 40px 24px; }
  .vs-box { grid-template-columns: 1fr; }
}

/* --- Body Blur for Modal --- */
body.modal-blur > *:not(.modal-overlay):not(script):not(style) {
  filter: blur(6px);
  -webkit-filter: blur(6px);
  pointer-events: none;
  user-select: none;
  transition: filter 0.3s ease;
}

body:not(.modal-blur) > * {
  filter: none;
  -webkit-filter: none;
}

/* --- Nav Lang Group (3 langs) --- */
.nav-lang-group {
  display: flex;
  gap: 4px;
  align-items: center;
}

.nav-lang-btn {
  font-size: 12px;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
  background: transparent;
  cursor: pointer;
}

.nav-lang-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
}

.nav-lang-btn.active {
  background: var(--color-primary-light);
  color: #fff;
  border-color: var(--color-primary-light);
}

/* --- Product Category Layout --- */
.product-category {
  margin-bottom: 64px;
}

.product-category .cat-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 32px;
}

.product-category .cat-main-img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.product-category .cat-overview h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.product-category .cat-overview p {
  font-size: 15px;
  color: #555;
  line-height: 1.9;
  margin-bottom: 12px;
}

.product-category .cat-sub-images {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.product-category .cat-sub-images img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: transform var(--transition-normal);
}

.product-category .cat-sub-images img:hover {
  transform: translateY(-4px);
}

.product-category .cat-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.product-category .cat-feature-item {
  background: #fff;
  border-radius: 14px;
  padding: 24px 20px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
  border-top: 4px solid var(--color-primary-light);
  text-align: center;
}

.product-category .cat-feature-item img,
.product-category .cat-feature-item video {
  width: 500px;
  max-width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 16px;
  background: #e8ecff;
}

.product-category .cat-feature-item h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.product-category .cat-feature-item p {
  font-size: 13px;
  color: #666;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .product-category .cat-header { grid-template-columns: 1fr; }
  .product-category .cat-sub-images { grid-template-columns: repeat(2, 1fr); }
  .product-category .cat-features { grid-template-columns: 1fr 1fr; }
  .nav-lang-group { gap: 2px; }
}

@media (max-width: 600px) {
  .gallery-grid, .feat-grid, .scene-grid { grid-template-columns: 1fr; }
  .spec-cards, .coop-grid, .stats-bar { grid-template-columns: 1fr 1fr; }
  .install-flow { flex-direction: column; align-items: center; }
  .flow-arrow { transform: rotate(90deg); padding: 4px 0; }
  .modal-card { padding: 32px 24px; }
  .lang-btn { padding: 12px 16px; }
  .product-category .cat-sub-images { grid-template-columns: 1fr; }
  .product-category .cat-features { grid-template-columns: 1fr; }
}

/* --- Captcha --- */
.captcha-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.captcha-row .captcha-img {
  width: 120px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  cursor: pointer;
  flex-shrink: 0;
}

.captcha-row .captcha-input {
  flex: 1;
  min-width: 0;
}

.captcha-refresh {
  font-size: 12px;
  color: var(--color-primary-light);
  cursor: pointer;
  white-space: nowrap;
}

.captcha-refresh:hover {
  text-decoration: underline;
}

.form-rate-limit-msg {
  background: #fff8e1;
  border: 1px solid #ffecb3;
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  color: #e67700;
  font-size: 14px;
  line-height: 1.8;
  margin-top: 12px;
  display: none;
}

/* ========== Breadcrumb Navigation ========== */
.breadcrumb {
  padding: 80px 0 0 0;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.breadcrumb ol {
  display: flex;
  align-items: center;
  list-style: none;
  padding: 12px 0;
  margin: 0;
  font-size: 13px;
  color: var(--color-muted, #999);
}
.breadcrumb ol li {
  display: flex;
  align-items: center;
}
.breadcrumb ol li + li::before {
  content: "›";
  margin: 0 8px;
  color: var(--color-muted, #999);
}
.breadcrumb ol li a {
  color: var(--color-secondary, #3b5bdb);
  text-decoration: none;
  transition: color 0.2s ease;
}
.breadcrumb ol li a:hover {
  color: var(--color-primary, #1e3a8a);
  text-decoration: underline;
}
.breadcrumb ol li:last-child {
  color: var(--color-text, #1a1a2e);
  font-weight: 500;
}

/* Responsive: mobile breadcrumb */
@media (max-width: 600px) {
  .breadcrumb { padding-left: 16px; padding-right: 16px; }
  .breadcrumb ol { font-size: 12px; }
}

/* ========== Internal Link ========== */
.link-internal {
  color: var(--color-secondary, #3b5bdb);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}
.link-internal:hover {
  color: var(--color-primary, #1e3a8a);
  text-decoration: underline;
}