/* ============ RESET ============ */
*,*::before,*::after { box-sizing: border-box; margin:0; padding:0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  background: #1a2942;
  color: #d5dbe6;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width:100%; display:block; }
button { cursor:pointer; border:none; background:none; font-family:inherit; color:inherit; }
ul { list-style: none; }
svg { display:block; }

/* ============ PALETTE ============ */
:root {
  --bg-0: #152038;
  --bg-1: #1a2942;
  --bg-2: #213254;
  --bg-3: #2a3d60;
  --line: rgba(255,255,255,0.10);
  --line-2: rgba(255,255,255,0.15);
  --text: #e4e9f2;
  --text-dim: #8a94a8;
  --text-soft: #b3bccd;
  --red: #c9302c;
  --red-2: #e54242;
  --blue: #3b82f6;
  --blue-2: #60a5fa;
  --gold: #d4a24c;
  --panel: #213254;
  --border: rgba(255,255,255,0.10);
}

/* ============ UTIL ============ */
.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.hidden { display: none !important; }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all 0.25s ease;
  white-space: nowrap;
  text-transform: capitalize;
}
.btn-lg { padding: 15px 30px; font-size: 14px; }
.btn-block { width:100%; }

.btn-primary {
  background: linear-gradient(180deg, #e33737 0%, #c9302c 100%);
  color: #fff;
  box-shadow: 0 4px 18px rgba(201, 48, 44, 0.35);
}
.btn-primary:hover {
  background: linear-gradient(180deg, #f24848 0%, #d83838 100%);
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(201, 48, 44, 0.45);
}

.btn-accent {
  background: #fff;
  color: #1a2942;
  box-shadow: 0 4px 18px rgba(255, 255, 255, 0.12);
}
.btn-accent:hover { background: #f2f2f2; transform: translateY(-1px); }

.btn-outline {
  border: 1px solid var(--line-2);
  color: var(--text);
  background: rgba(255,255,255,0.03);
}
.btn-outline:hover {
  border-color: var(--red);
  color: #fff;
  background: rgba(201, 48, 44, 0.08);
}

.btn-ghost {
  background: rgba(255,255,255,0.06);
  color: #fff;
  border: 1px solid var(--line-2);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.25); }

/* ============ TOP STRIP ============ */
.topstrip {
  background: linear-gradient(90deg, #152038, #1e2d4a 40%, #152038);
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--text-dim);
}
.topstrip-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 40px;
}
.topstrip-right { display:flex; gap:24px; }
.topstrip-right a { transition: color 0.2s; }
.topstrip-right a:hover { color: var(--red-2); }

/* ============ NAVBAR ============ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 21, 35, 0.92);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--line);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 82px;
  gap: 24px;
}
.nav-container > * { flex: 1; }
.nav-container > .nav-brand { flex: 0 0 auto; }
.nav-container > .nav-actions { flex: 0 0 auto; }

.logo-mark {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-svg { width: 36px; height: 36px; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; line-height: 1.05; }
.logo-name {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.08em;
  color: #fff;
  white-space: nowrap;
}
.logo-sub {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.32em;
  color: var(--text-dim);
  margin-top: 2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-soft);
  border-radius: 3px;
  position: relative;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.04); }
.nav-link.active { color: #fff; }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 18px; right: 18px;
  height: 2px;
  background: var(--red);
  border-radius: 2px;
}

/* ---- SOLUTIONS dropdown ---- */
.nav-item { position: relative; display: flex; align-items: center; }
.nav-caret { display: inline-block; margin-left: 6px; font-size: 10px; opacity: 0.7; transition: transform 0.2s; }
.nav-item:hover .nav-caret { transform: rotate(180deg); }
.nav-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  min-width: 240px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
  box-shadow: 0 14px 34px rgba(0,0,0,0.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 60;
}
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -12px; left: 0; right: 0;
  height: 12px;
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown .nav-link {
  display: block;
  width: 100%;
  padding: 11px 14px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: var(--text-soft);
  border-radius: 4px;
}
.nav-dropdown .nav-link:hover { color: #fff; background: rgba(255,255,255,0.06); }
.nav-dropdown .nav-link.active { color: #fff; background: rgba(201,48,44,0.14); }
.nav-dropdown .nav-link.active::after { display: none; }

.nav-actions { display:flex; align-items:center; gap: 10px; justify-content: flex-end; }
.nav-actions .btn { padding: 9px 16px; font-size: 12.5px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.hamburger span {
  display:block;
  width: 26px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ HERO / CAROUSEL ============ */
.hero { }
.carousel {
  position: relative;
  height: 620px;
  overflow: hidden;
}
.carousel-track { position: relative; width:100%; height:100%; }

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.9s ease;
  pointer-events: none;
}
.slide.active { opacity: 1; pointer-events: auto; }

.slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
  transition: transform 7s ease;
}
.slide.active .slide-bg { transform: scale(1.1); }

.slide-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 100% 50%, transparent 0%, rgba(0,0,0,0.4) 70%);
}

.slide-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 17, 30, 0.92) 0%, rgba(10, 17, 30, 0.65) 40%, rgba(10, 17, 30, 0.15) 70%, transparent 100%),
    linear-gradient(180deg, rgba(10,17,30,0.4) 0%, transparent 20%, transparent 70%, rgba(10,17,30,0.6) 100%);
}

.slide-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 40px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.slide-kicker {
  display: inline-block;
  padding: 6px 14px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--red-2);
  background: rgba(201, 48, 44, 0.12);
  border: 1px solid rgba(201, 48, 44, 0.3);
  margin-bottom: 22px;
}

.slide-title {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 68px;
  line-height: 1.02;
  color: #fff;
  letter-spacing: 0.02em;
  margin-bottom: 22px;
}

.slide-desc {
  font-size: 16.5px;
  line-height: 1.75;
  color: #c0c8d8;
  max-width: 540px;
  margin-bottom: 36px;
}
.slide-actions { display:flex; gap: 14px; flex-wrap: wrap; }

/* Carousel controls */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border-radius: 0;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s;
  z-index: 10;
  backdrop-filter: blur(4px);
}
.carousel-btn:hover {
  background: var(--red);
  border-color: var(--red);
}
.carousel-btn.prev { left: 32px; }
.carousel-btn.next { right: 32px; }

.carousel-dots {
  position: absolute;
  bottom: 40px;
  left: 32px;
  display: flex;
  gap: 10px;
  z-index: 10;
}
.carousel-dot {
  width: 38px;
  height: 3px;
  background: rgba(255,255,255,0.22);
  cursor: pointer;
  transition: all 0.35s;
}
.carousel-dot:hover { background: rgba(255,255,255,0.45); }
.carousel-dot.active {
  width: 72px;
  background: var(--red);
  box-shadow: 0 0 12px rgba(201,48,44,0.6);
}

.scroll-indicator {
  position: absolute;
  right: 32px;
  bottom: 40px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.5);
  font-size: 11px;
  letter-spacing: 0.3em;
  font-weight: 500;
  z-index: 10;
}
.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, rgba(255,255,255,0.6), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: -50%;
  left: 0;
  width: 100%;
  height: 40%;
  background: #fff;
  animation: scrollAnim 2.4s ease-in-out infinite;
}
@keyframes scrollAnim {
  0%   { top: -50%; }
  100% { top: 120%; }
}

/* ============ SECTION HEAD ============ */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-kicker {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.36em;
  color: var(--red-2);
  margin-bottom: 18px;
  position: relative;
  padding: 0 20px;
}
.section-kicker::before,
.section-kicker::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 14px;
  height: 1px;
  background: var(--red);
  opacity: 0.5;
}
.section-kicker::before { left: 0; }
.section-kicker::after { right: 0; }

.section-title {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 44px;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}
.section-lead {
  font-size: 15.5px;
  color: var(--text-dim);
  line-height: 1.75;
}

/* ============ CATEGORIES ============ */
.categories { padding: 110px 0; background: var(--bg-1); }
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.cat-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(.2,.7,.2,1);
  display: flex;
  flex-direction: column;
}
.cat-card:hover {
  border-color: rgba(201, 48, 44, 0.4);
  transform: translateY(-5px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}
.cat-thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.cat-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease, filter 0.4s;
  filter: saturate(0.95);
}
.cat-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(14, 21, 35, 0.92) 100%);
  z-index: 2;
}
.cat-card:hover .cat-thumb img {
  transform: scale(1.08);
  filter: saturate(1.1);
}
.cat-body {
  padding: 22px 22px 24px;
}
.cat-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}
.cat-body p {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 16px;
  min-height: 44px;
}
.cat-link {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--red-2);
  transition: transform 0.25s, color 0.25s;
  display: inline-block;
}
.cat-card:hover .cat-link {
  transform: translateX(4px);
  color: var(--red-2);
}

/* ============ PRODUCTS ============ */
.products { padding: 110px 0; background: var(--bg-0); }
.products::before {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
  margin-bottom: 110px;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.product-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  transition: all 0.35s ease;
  position: relative;
}
.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(201,48,44,0.4);
  box-shadow: 0 22px 48px rgba(0,0,0,0.45);
}
.product-flag {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 5;
  padding: 4px 10px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #fff;
  font-family: 'Oswald', sans-serif;
}
.flag-hot { background: linear-gradient(135deg, #e54242, #c9302c); }
.flag-new { background: linear-gradient(135deg, #10b981, #059669); }

.product-media {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: linear-gradient(145deg, #141d31, #0c121f);
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.product-card:hover .product-media img { transform: scale(1.06); }

.product-actions {
  position: absolute;
  inset: 0;
  background: rgba(10, 17, 30, 0.88);
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 4;
  padding: 20px;
}
.product-card:hover .product-actions { opacity: 1; }
.pbtn {
  width: 100%;
  padding: 12px 18px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  border-radius: 4px;
  transition: all 0.2s;
}
.pbtn.primary {
  background: var(--red);
  border-color: var(--red);
}
.pbtn:hover { background: var(--red-2); border-color: var(--red-2); }
.pbtn:not(.primary):hover { background: rgba(255,255,255,0.1); }
.pbtn.datasheet {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(201,48,44,0.12);
  border-color: rgba(201,48,44,0.45);
}
.pbtn.datasheet:hover {
  background: var(--red);
  border-color: var(--red);
}
.pbtn.datasheet svg { flex: 0 0 auto; }

.product-meta { padding: 20px 22px 22px; }
.p-code {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--red-2);
  margin-bottom: 8px;
}
.product-meta h3 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
  line-height: 1.4;
}
.p-spec {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 14px;
  letter-spacing: 0.01em;
}
.p-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.p-price {
  font-size: 13px;
  color: var(--text-dim);
}
.p-price strong {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  font-family: 'Oswald', sans-serif;
  margin-left: 4px;
  letter-spacing: 0.02em;
}
.p-stock {
  font-size: 12px;
  color: #34d399;
  font-weight: 500;
}
.p-stock.low { color: var(--gold); }

/* 卡片底部始终可见的 View Details 按钮(无需悬停) */
.product-meta .p-view {
  width: 100%;
  margin-top: 12px;
  padding: 10px 18px;
  font-size: 13px;
  background: rgba(201, 48, 44, 0.08);
  border-color: rgba(201, 48, 44, 0.35);
  color: var(--red-2);
}
.product-meta .p-view:hover {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

/* ============ STATS ============ */
.stats {
  padding: 100px 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(201,48,44,0.08), transparent 60%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.stat-card {
  padding: 36px 28px;
  text-align: left;
  position: relative;
  background: var(--bg-2);
  border: 1px solid var(--line);
  transition: all 0.3s;
}
.stat-card:hover {
  border-color: rgba(201,48,44,0.3);
  transform: translateY(-2px);
}
.stat-num {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 56px;
  line-height: 1;
  background: linear-gradient(180deg, #fff, #a0a9ba 140%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 18px;
}
.stat-line {
  width: 32px;
  height: 2px;
  background: var(--red);
  margin-bottom: 18px;
}
.stat-title {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
}
.stat-sub {
  font-size: 13px;
  color: var(--text-dim);
}

/* ============ INDUSTRIES ============ */
.industries { padding: 110px 0; background: var(--bg-1); }
.ind-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.ind-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 36px 32px;
  position: relative;
  transition: all 0.35s;
  overflow: hidden;
}
.ind-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 0;
  background: var(--red);
  transition: height 0.5s ease;
}
.ind-card:hover {
  transform: translateY(-4px);
  border-color: rgba(201,48,44,0.3);
  background: #162238;
}
.ind-card:hover::before { height: 100%; }
.ind-num {
  font-family: 'Oswald', sans-serif;
  font-size: 56px;
  font-weight: 500;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.25);
  line-height: 1;
  margin-bottom: 16px;
}
.ind-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
}
.ind-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ============ CTA BAND ============ */
.cta-band {
  background:
    linear-gradient(135deg, #1a0a0b 0%, #3b1113 45%, #1a0a0b 100%);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c9302c' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.4;
}
.cta-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.3fr auto;
  align-items: center;
  gap: 40px;
}
.cta-band h2 {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 30px;
  color: #fff;
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}
.cta-band p {
  color: rgba(255,255,255,0.7);
  font-size: 15px;
}

/* ============ ABOUT ============ */
.about { padding: 110px 0; background: var(--bg-0); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-img {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
}
.about-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(10,17,30,0.9);
  backdrop-filter: blur(10px);
  padding: 18px 22px;
  border: 1px solid var(--line-2);
  border-left: 3px solid var(--red);
}
.about-badge strong {
  display: block;
  font-family: 'Oswald', sans-serif;
  font-size: 24px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.04em;
}
.about-badge span {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

.about-copy h2 {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 40px;
  line-height: 1.15;
  color: #fff;
  margin: 18px 0 22px;
  letter-spacing: 0.01em;
}
.about-copy .lead {
  font-size: 15.5px;
  color: var(--text-soft);
  line-height: 1.8;
  margin-bottom: 28px;
}
.about-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 32px; }
.about-list li {
  padding-left: 24px;
  position: relative;
  color: var(--text-soft);
  font-size: 14.5px;
  line-height: 1.55;
}
.about-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 12px;
  height: 2px;
  background: var(--red);
}
.about-list li strong {
  color: #fff;
  font-weight: 600;
}

/* ============ CONTACT ============ */
.contact { padding: 110px 0; background: var(--bg-1); }
.contact::before {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
  margin-bottom: 110px;
}
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
}
.contact-info { }
.contact-info h2 {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 42px;
  color: #fff;
  margin: 18px 0 18px;
}
.contact-info .lead {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.75;
  margin-bottom: 40px;
}
.info-list { display: flex; flex-direction: column; gap: 24px; }
.info-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.icn {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: rgba(201,48,44,0.1);
  border: 1px solid rgba(201,48,44,0.2);
  color: var(--red-2);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}
.info-list li > div strong {
  display: block;
  font-size: 13px;
  color: #fff;
  margin-bottom: 4px;
  font-weight: 600;
}
.info-list li > div span {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

.social-row { display: flex; gap: 12px; margin-top: 40px; }
.social-row a {
  width: 40px;
  height: 40px;
  border-radius: 4px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s;
}
.social-row a:hover {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
  transform: translateY(-2px);
}

/* Contact form */
.contact-form {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 44px 40px;
}
.contact-form h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 26px;
  color: #fff;
  margin-bottom: 8px;
}
.form-sub {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 28px;
}

.f-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.f-item { margin-bottom: 18px; }
.f-item label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-soft);
  margin-bottom: 8px;
}
.f-item input,
.f-item select,
.f-item textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-0);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  border-radius: 4px;
  transition: border-color 0.2s, background 0.2s;
  appearance: none;
  resize: vertical;
}
.f-item select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a94a8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}
.f-item input::placeholder,
.f-item textarea::placeholder {
  color: #4a5268;
}
.f-item input:focus,
.f-item select:focus,
.f-item textarea:focus {
  outline: none;
  border-color: var(--red);
  background: #0d1525;
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 22px;
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.55;
  cursor: pointer;
}
.consent input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: var(--red);
  cursor: pointer;
  flex-shrink: 0;
}

/* ============ FOOTER ============ */
.footer {
  background: #070b14;
  border-top: 1px solid var(--line);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 72px 32px 56px;
}
.f-col h4 {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.18em;
  color: #fff;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.f-col ul { display: flex; flex-direction: column; gap: 10px; }
.f-col ul li a {
  font-size: 13.5px;
  color: var(--text-dim);
  transition: color 0.2s, padding 0.2s;
}
.f-col ul li a:hover {
  color: var(--red-2);
  padding-left: 3px;
}

.brand-col { }
.brand-col .logo-mark { margin-bottom: 20px; }
.brand-about {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.75;
  max-width: 280px;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 24px 0;
}
.fb-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--text-dim);
}
.fb-links { display: flex; gap: 26px; }
.fb-links a { transition: color 0.2s; }
.fb-links a:hover { color: #fff; }

/* ============ TOAST ============ */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translate(-50%, 120%);
  background: #162238;
  border: 1px solid rgba(201,48,44,0.5);
  border-left: 3px solid var(--red);
  color: #fff;
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 18px 60px rgba(0,0,0,0.55);
  opacity: 0;
  transition: all 0.4s cubic-bezier(.2,.8,.2,1);
  z-index: 9999;
  border-radius: 2px;
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ============ COOKIE BANNER ============ */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9000;
  background: rgba(10, 17, 30, 0.97);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(201, 48, 44, 0.3);
  transform: translateY(100%);
  transition: transform 0.5s cubic-bezier(.2,.8,.2,1);
}
.cookie-banner.show { transform: translateY(0); }
.cookie-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.cookie-text strong {
  display: block;
  font-size: 14px;
  color: #fff;
  margin-bottom: 4px;
}
.cookie-text p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.55;
  max-width: 640px;
}
.cookie-text a { color: var(--red-2); text-decoration: underline; }
.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }

@media (max-width: 768px) {
  .cookie-content { flex-direction: column; text-align: center; gap: 16px; padding: 16px 20px; }
  .cookie-text p { max-width: 100%; }
}

/* ============ NAV SEARCH ============ */
.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.09);
  padding: 8px 14px;
  border-radius: 6px;
  margin-right: 8px;
  position: relative;
  transition: border-color .2s, background .2s;
}
.nav-search input::-webkit-search-cancel-button { -webkit-appearance: none; }
.nav-search:focus-within {
  border-color: rgba(201,48,44,0.5);
  background: rgba(255,255,255,0.09);
}
.nav-search svg { color: var(--text-dim); flex-shrink: 0; }
.nav-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  width: 210px;
}
.nav-search input::placeholder { color: rgba(255,255,255,0.4); }
@media (max-width: 1100px) {
  .nav-search { display: none; }
}

/* ============ SEARCH RESULTS (fix --panel/--border) ============ */
.search-results {
  background: var(--bg-2) !important;
  border-color: var(--line) !important;
}
.sr-header { border-bottom-color: var(--line) !important; }
.sr-item { border-bottom-color: rgba(255,255,255,0.05) !important; }

/* ============ DETAIL MODAL (fix --panel/--border) ============ */
.modal-wrap {
  background: var(--bg-2) !important;
  border-color: var(--line) !important;
}
.m-hero { border-bottom-color: var(--line) !important; }
.m-section { border-bottom-color: rgba(255,255,255,0.06) !important; }

/* ============ PRODUCT CARD actions expanded ============ */
.product-card .pbtn[data-detail-prod] {
  color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
}
.product-card .pbtn[data-detail-prod]:hover {
  background: rgba(201,48,44,0.18);
  border-color: var(--red);
  color: var(--red-2);
}

/* ============ FLOATING ACTION BUTTONS (FAB) ============ */
.fab {
  position: fixed;
  right: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 12px;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  z-index: 8000;
  transition: transform .3s, opacity .3s, box-shadow .2s;
  backdrop-filter: blur(10px);
  min-width: 56px;
}
.fab:hover { transform: translateY(-2px) scale(1.04); }
.fab span { opacity: 0.88; }
.fab-quote { bottom: 200px; background: linear-gradient(135deg, #c9302c, #ef4444); }
.fab-quote:hover { box-shadow: 0 12px 32px rgba(201,48,44,0.55); }
.fab-top {
  bottom: 60px;
  background: rgba(14, 21, 35, 0.92);
  border: 1px solid rgba(255,255,255,0.15);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}
.fab-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.fab-top:hover { box-shadow: 0 12px 32px rgba(0,0,0,0.55); }
@media (max-width: 768px) {
  .fab { right: 14px; padding: 9px 10px; }
  .fab span { display: none; }
  .logo-name { font-size: 14px; letter-spacing: 0.04em; }
  .logo-svg { width: 28px; height: 28px; }
}

/* ============ SEARCH RESULTS ============ */
.search-results {
  position: fixed;
  top: 140px;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: min(640px, calc(100vw - 40px));
  max-height: 70vh;
  overflow-y: auto;
  z-index: 8500;
  box-shadow: 0 30px 80px rgba(0,0,0,0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.search-results.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.sr-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sr-header strong { color: #fff; }
.sr-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
}
.sr-close:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sr-item {
  display: flex;
  gap: 14px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  cursor: pointer;
  transition: background .15s;
  text-align: left;
  width: 100%;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
}
.sr-item:last-child { border-bottom: none; }
.sr-item:hover { background: rgba(201,48,44,0.08); }
.sr-thumb {
  width: 64px; height: 64px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: rgba(255,255,255,0.05);
}
.sr-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.sr-body { flex: 1; min-width: 0; }
.sr-type {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--red-2);
  font-weight: 600;
  margin-bottom: 3px;
}
.sr-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}
.sr-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
}
.sr-empty {
  padding: 32px 24px;
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
}
.sr-empty strong { color: #fff; }

/* ============ DETAIL MODAL ============ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 9500;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal.open { display: flex; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 10, 20, 0.82);
  backdrop-filter: blur(6px);
  animation: fadeIn .25s ease;
}
.modal-wrap {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 40px 100px rgba(0,0,0,0.6);
  animation: modalIn .35s cubic-bezier(.2,.8,.2,1);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes modalIn {
  from { opacity: 0; transform: translateY(30px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all .2s;
}
.modal-close:hover {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
  transform: rotate(90deg);
}

/* Modal: Category detail layout */
.m-hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.m-hero-img {
  min-height: 300px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.m-hero-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(14,21,35,0.4) 100%);
}
.m-hero-text {
  padding: 36px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.m-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red-2);
  background: rgba(201,48,44,0.12);
  border: 1px solid rgba(201,48,44,0.3);
  margin-bottom: 16px;
}
.m-title {
  font-family: 'Oswald', sans-serif;
  font-size: 36px;
  font-weight: 600;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.01em;
}
.m-title span { color: var(--red-2); }
.m-lead {
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 20px;
}
.m-cta-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Modal content sections */
.m-section {
  padding: 32px 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.m-section:last-child { border-bottom: none; }
.m-sec-title {
  font-family: 'Oswald', sans-serif;
  font-size: 20px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.m-sec-title::before {
  content: '';
  width: 4px;
  height: 20px;
  background: var(--red);
  border-radius: 2px;
}

/* Spec table */
.m-spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.m-spec {
  padding: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 10px;
}
.m-spec-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 6px;
  font-weight: 600;
}
.m-spec-value {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}

/* Features list */
.m-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
}
.m-feat {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.m-feat-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(16,185,129,0.12);
  border: 1px solid rgba(16,185,129,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #34d399;
  flex-shrink: 0;
  margin-top: 1px;
}
.m-feat-check svg { width: 12px; height: 12px; }
.m-feat-text {
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

/* Applications */
.m-apps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.m-app {
  padding: 16px;
  background: linear-gradient(135deg, rgba(59,130,246,0.06), rgba(201,48,44,0.06));
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 10px;
  text-align: center;
  transition: transform .2s, border-color .2s;
}
.m-app:hover {
  transform: translateY(-2px);
  border-color: rgba(201,48,44,0.3);
}
.m-app-icn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(201,48,44,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
  color: var(--red-2);
}
.m-app-icn svg { width: 20px; height: 20px; }
.m-app-title {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 2px;
}
.m-app-sub {
  font-size: 11px;
  color: var(--text-dim);
}

/* Product model table */
.m-model-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.m-model-table th,
.m-model-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.m-model-table th {
  background: rgba(255,255,255,0.04);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 600;
}
.m-model-table tr:hover td { background: rgba(201,48,44,0.04); }
.m-model-table td.model { font-weight: 600; color: var(--red-2); }
.m-model-table td.price { font-weight: 700; color: #fff; white-space: nowrap; }
.m-model-table .tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tag-stock { background: rgba(16,185,129,0.12); color: #34d399; }
.tag-low   { background: rgba(245,158,11,0.12); color: #fbbf24; }
.tag-new   { background: rgba(59,130,246,0.12); color: #60a5fa; }
.tag-hot   { background: rgba(201,48,44,0.15); color: #ef4444; }

/* Product detail specific */
.pd-hero {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 0;
  border-bottom: 1px solid var(--border);
  min-height: 380px;
}
.pd-img {
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: flex-start;
  padding: 24px;
}
.pd-flags { display: flex; gap: 8px; }
.pd-body {
  padding: 40px 40px 32px;
  display: flex;
  flex-direction: column;
}
.pd-code {
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 12px;
  color: var(--red-2);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.pd-name {
  font-family: 'Oswald', sans-serif;
  font-size: 32px;
  font-weight: 600;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 14px;
}
.pd-desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-dim);
  margin-bottom: 22px;
}
.pd-price-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 22px;
  padding: 16px 20px;
  background: rgba(255,255,255,0.03);
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.07);
}
.pd-from { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; }
.pd-price {
  font-family: 'Oswald', sans-serif;
  font-size: 34px;
  font-weight: 700;
  color: #fff;
}
.pd-price sup { font-size: 18px; margin-right: 2px; }
.pd-stock {
  font-size: 13px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
}
.pd-stock.ok  { background: rgba(16,185,129,0.12); color: #34d399; }
.pd-stock.low { background: rgba(245,158,11,0.12); color: #fbbf24; }
.pd-shipping {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-dim);
}
.pd-qty {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}
.pd-qty label { font-size: 13px; color: var(--text-dim); font-weight: 500; }
.pd-qty-input {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  overflow: hidden;
}
.pd-qty-input button {
  width: 40px;
  height: 42px;
  border: none;
  background: transparent;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  transition: background .15s;
}
.pd-qty-input button:hover { background: rgba(255,255,255,0.06); }
.pd-qty-input input {
  width: 60px;
  height: 42px;
  background: transparent;
  border: none;
  text-align: center;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  outline: none;
  -moz-appearance: textfield;
}
.pd-qty-input input::-webkit-outer-spin-button,
.pd-qty-input input::-webkit-inner-spin-button { -webkit-appearance: none; }

.pd-lead { font-size: 12px; color: var(--text-dim); }
.pd-lead strong { color: #fff; }

.pd-actions {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}
.pd-actions .btn { justify-content: center; }

.pd-extra-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.pd-extra-btns .btn-outline { justify-content: center; }

/* Modal responsive */
@media (max-width: 720px) {
  .m-hero { grid-template-columns: 1fr; }
  .m-hero-img { min-height: 200px; }
  .m-hero-text { padding: 24px; }
  .m-title { font-size: 26px; }
  .m-section { padding: 24px; }
  .m-features { grid-template-columns: 1fr; }
  .pd-hero { grid-template-columns: 1fr; min-height: auto; }
  .pd-img { min-height: 240px; }
  .pd-body { padding: 24px; }
  .pd-name { font-size: 24px; }
  .pd-price { font-size: 28px; }
  .pd-actions, .pd-extra-btns { grid-template-columns: 1fr; }
  .pd-price-row { flex-wrap: wrap; }
  .pd-shipping { margin-left: 0; }
}

/* ============ SCROLL FADE-UP ============ */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(.2,.7,.2,1);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1180px) {
  .nav-menu { display: none; }
  .nav-container > .nav-menu {
    position: fixed;
    top: 122px;
    left: 0; right: 0;
    background: var(--bg-1);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px 24px 24px;
    align-items: stretch;
    gap: 4px;
    display: none;
    border-bottom: 1px solid var(--line);
  }
  .nav-menu.open { display: flex; }
  .nav-link { padding: 14px 16px; }
  .nav-link.active::after { display: none; }
  .nav-item { width: 100%; }
  .nav-dropdown {
    position: static;
    min-width: 0;
    background: transparent;
    border: none;
    border-left: 2px solid var(--red);
    border-radius: 0;
    padding: 2px 0 8px 14px;
    margin: 2px 0 2px 8px;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }
  .nav-dropdown::before { display: none; }
  .nav-dropdown .nav-link { white-space: normal; padding: 10px 16px; font-size: 12px; }
  .nav-caret { transform: rotate(180deg); }
  .hamburger { display: flex; }
  .nav-actions .btn-outline { display: none; }

  .cat-grid, .product-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr 1fr; }
  .slide-title { font-size: 52px; }
  .carousel { height: 560px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .slide-content { grid-template-columns: 1fr; }
  .slide-right { display: none; }
  .slide-title { font-size: 44px; }
  .carousel { height: 520px; }

  .cat-grid, .product-grid, .ind-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .section-title { font-size: 34px; }

  .about-grid,
  .contact-grid,
  .cta-inner {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .nav-container { height: 72px; }
  .nav-actions .btn-primary { display: none; }
  .nav-actions .btn-accent { padding: 8px 14px; font-size: 12px; }

  .topstrip-inner {
    flex-direction: column;
    justify-content: center;
    height: auto;
    padding: 10px 0;
    gap: 6px;
    text-align: center;
  }
  .topstrip-right { gap: 16px; }

  .slide-title { font-size: 34px; }
  .slide-desc { font-size: 14px; margin-bottom: 24px; }
  .carousel { height: 480px; }
  .carousel-btn { width: 40px; height: 40px; }
  .carousel-btn.prev { left: 12px; }
  .carousel-btn.next { right: 12px; }
  .scroll-indicator { display: none; }
  .carousel-dots { left: 20px; bottom: 28px; }

  .cat-grid, .product-grid, .ind-grid, .stats-grid {
    grid-template-columns: 1fr;
  }
  .f-row { grid-template-columns: 1fr; }

  .section-title { font-size: 28px; }
  .stat-num { font-size: 44px; }
  .about-copy h2 { font-size: 28px; }

  .contact-form { padding: 28px 22px; }
  .footer-top { grid-template-columns: 1fr; padding: 52px 20px 40px; }
  .fb-inner { flex-direction: column; gap: 12px; text-align: center; }
}

/* ============ PAGE HERO (sub pages) ============ */
.page-hero {
  position: relative;
  height: 420px;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
}
.page-hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  transform: scale(1.05);
}
.page-hero::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(10,17,30,0.94) 0%, rgba(10,17,30,0.72) 50%, rgba(10,17,30,0.4) 100%),
              linear-gradient(180deg, rgba(10,17,30,0.4) 0%, transparent 30%, transparent 70%, rgba(10,17,30,0.7) 100%);
}
.page-hero-content {
  position: relative; z-index: 2;
  max-width: 1280px; margin: 0 auto;
  padding: 78px 32px 0; width: 100%;
}
.page-hero-content .eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  margin-bottom: 18px;
  text-transform: uppercase;
}
.page-hero-content .eyebrow a:hover { color: var(--red-2); }
.page-hero-content .breadcrumb .bc-sep {
  display: inline-block;
  margin: 0 8px;
  color: rgba(255,255,255,0.35);
}
.page-hero-content .breadcrumb .bc-current {
  color: rgba(255,255,255,0.85);
}
.page-hero-content h1 {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 56px;
  line-height: 1.08;
  color: #fff;
  letter-spacing: 0.01em;
  margin-bottom: 18px;
}
.page-hero-content h1 span { color: var(--red); }
.page-hero-content p {
  font-size: 17px;
  color: #c0c8d8;
  max-width: 680px;
  line-height: 1.75;
  margin-bottom: 26px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ============ SECTION SHARED ============ */
.section { padding: 96px 0; background: var(--bg-1); }

/* ============ DOWNLOADS LIST (resources.php) ============ */
.downloads { padding: 88px 0 72px; background: var(--bg-0); }
.dl-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.dl-item {
  display: flex; align-items: center; gap: 18px;
  padding: 22px 24px;
  background: var(--bg-2);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
  transition: transform .2s, border-color .2s, background .2s;
}
.dl-item:hover {
  transform: translateY(-2px);
  border-color: var(--red-2);
  background: linear-gradient(135deg, rgba(201,48,44,0.10), rgba(33,50,84,0.6));
}
.dl-icon {
  flex: 0 0 48px;
  width: 48px; height: 48px;
  border-radius: 10px;
  background: rgba(201,48,44,0.15);
  color: var(--red-2);
  display: flex; align-items: center; justify-content: center;
}
.dl-body { flex: 1 1 auto; min-width: 0; }
.dl-title { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.dl-desc  { font-size: 13px; color: var(--text-dim); line-height: 1.5; margin-bottom: 6px; }
.dl-meta  { display: flex; align-items: center; gap: 10px; font-size: 12px; }
.dl-tag {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  background: rgba(201,48,44,0.18); color: var(--red-2);
  font-weight: 600; letter-spacing: 0.04em;
}
.dl-size { color: var(--text-dim); }
.dl-name { color: var(--text-dim); max-width: 60%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dl-dot  { color: var(--text-dim); opacity: 0.6; }
.dl-action {
  flex: 0 0 auto;
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--red-2);
  border-radius: 6px;
  color: var(--red-2);
  font-size: 13px; font-weight: 600;
  transition: background .2s, color .2s;
}
.dl-item:hover .dl-action { background: var(--red-2); color: #fff; }

@media (max-width: 760px) {
  .dl-list { grid-template-columns: 1fr; }
  .dl-item { padding: 18px; }
  .dl-action span { display: none; }
  .dl-action { padding: 8px; }
}
.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}
.section-head .eyebrow {
  display: inline-block;
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--red-2);
  margin-bottom: 14px;
  text-transform: uppercase;
}
.section-head h2 {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 42px;
  color: #fff;
  line-height: 1.15;
  letter-spacing: 0.01em;
}
.section-head h2 span { color: var(--red); }

/* ============ PRODUCT DETAIL ============ */
.product-detail { padding: 96px 0; background: var(--bg-1); }
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: start;
}
.detail-image {
  position: sticky;
  top: 110px;
  background: linear-gradient(145deg, #141d31, #0c121f);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 32px;
}
.detail-image img {
  width: 100%;
  border-radius: 8px;
  aspect-ratio: 1/1;
  object-fit: cover;
  background: #152038;
}
.detail-tags {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 20px;
}
.tag {
  display: inline-block;
  padding: 5px 12px;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-soft);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  text-transform: uppercase;
}
.tag.tag-red {
  color: #fff;
  background: rgba(201,48,44,0.18);
  border-color: rgba(201,48,44,0.5);
}
.detail-info h2 {
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 36px;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
}
.detail-info .lead {
  font-size: 18px;
  color: #c7cfdd;
  line-height: 1.7;
  margin-bottom: 18px;
}
.detail-info > p {
  color: var(--text-soft);
  line-height: 1.8;
  margin-bottom: 22px;
}
.feature-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 32px;
}
.feature-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 16px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 14.5px;
  color: var(--text);
}
.feature-list li i {
  color: var(--red-2);
  flex-shrink: 0;
  margin-top: 3px;
}
.detail-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ============ PRINCIPLES / HOW IT WORKS ============ */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.principle-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 34px 26px;
  border-radius: 8px;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.principle-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 0;
  background: var(--red);
  transition: height 0.45s ease;
}
.principle-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,48,44,0.4);
  background: #15213a;
}
.principle-card:hover::before { height: 100%; }
.principle-icon {
  width: 58px; height: 58px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: rgba(201,48,44,0.1);
  border: 1px solid rgba(201,48,44,0.3);
  color: var(--red-2);
  font-size: 24px;
  margin-bottom: 22px;
}
.principle-card h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 20px;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}
.principle-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.75;
}

/* ============ SPECS TABLE ============ */
.specs-wrapper {
  max-width: 960px;
  margin: 0 auto;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.specs-table {
  width: 100%;
  border-collapse: collapse;
}
.specs-table th,
.specs-table td {
  padding: 16px 28px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
}
.specs-table thead th {
  background: linear-gradient(180deg, #2a3d60, #213254);
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: #fff;
  text-transform: uppercase;
  font-weight: 500;
}
.specs-table td:first-child {
  width: 38%;
  color: var(--text-soft);
  font-weight: 500;
}
.specs-table td:last-child {
  color: var(--text);
}
.specs-table tbody tr:last-child td { border-bottom: none; }
.specs-table tbody tr:hover td { background: rgba(255,255,255,0.015); }
.specs-table .spec-subhead {
  background: rgba(201,48,44,0.08) !important;
  font-family: 'Oswald', sans-serif;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--red-2) !important;
  text-transform: uppercase;
  font-weight: 500;
  padding: 10px 28px;
}

/* ============ INDUSTRIES / APPLICATIONS GRID ============ */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.industry-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 36px 30px;
  border-radius: 8px;
  transition: all 0.35s ease;
}
.industry-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,48,44,0.4);
  box-shadow: 0 20px 48px rgba(0,0,0,0.4);
  background: #15213a;
}
.industry-icon {
  width: 64px; height: 64px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(201,48,44,0.18), rgba(201,48,44,0.06));
  border: 1px solid rgba(201,48,44,0.3);
  color: var(--red-2);
  font-size: 28px;
  margin-bottom: 22px;
}
.industry-card h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 22px;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}
.industry-card p {
  font-size: 14.5px;
  color: var(--text-dim);
  line-height: 1.75;
}

/* ============ ALTERNATIVE PRODUCTS GRID ============ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.products-grid .product-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(.2,.7,.2,1);
  display: flex;
  flex-direction: column;
}
.products-grid .product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,48,44,0.45);
  box-shadow: 0 24px 56px rgba(0,0,0,0.5);
}
.products-grid .product-img {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: linear-gradient(145deg, #141d31, #0c121f);
}
.products-grid .product-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.products-grid .product-card:hover .product-img img { transform: scale(1.06); }
.products-grid .product-body {
  padding: 26px 26px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.products-grid .product-body .cat {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--red-2);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.products-grid .product-body h4 {
  font-family: 'Oswald', sans-serif;
  font-size: 20px;
  color: #fff;
  margin-bottom: 10px;
  line-height: 1.3;
  letter-spacing: 0.01em;
}
.products-grid .product-body > p {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
}
.products-grid .product-body .more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--red-2);
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.products-grid .product-body .more i { transition: transform 0.25s; }
.products-grid .product-card:hover .more i { transform: translateX(4px); }

.btn-light {
  background: #fff;
  color: #1a2942;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(255,255,255,0.12);
}
.btn-light:hover {
  background: #f2f2f2;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255,255,255,0.18);
}

/* ============ RESPONSIVE: NEW SECTIONS ============ */
@media (max-width: 1100px) {
  .detail-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
  .page-hero-content h1 { font-size: 46px; }
}
@media (max-width: 860px) {
  .section { padding: 72px 0; }
  .section-head h2 { font-size: 32px; }
  .page-hero { height: 360px; }
  .page-hero-content h1 { font-size: 36px; }
  .page-hero-content p { font-size: 15px; }
  .detail-grid { grid-template-columns: 1fr; }
  .detail-image { position: static; }
  .detail-info h2 { font-size: 28px; }
  .principles-grid { grid-template-columns: 1fr 1fr; }
  .industries-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .specs-table th,
  .specs-table td { padding: 12px 16px; font-size: 13.5px; }
  .specs-table .spec-subhead { padding: 8px 16px; }
}
@media (max-width: 520px) {
  .principles-grid { grid-template-columns: 1fr; }
  .page-hero-content { padding: 0 20px; }
  .page-hero-content h1 { font-size: 30px; }
  .section-head h2 { font-size: 26px; }
  .hero-actions .btn { width: 100%; }
  .detail-actions .btn { width: 100%; }
  .cta-inner { flex-direction: column !important; align-items: flex-start !important; text-align: left !important; gap: 18px; }
}

/* ============ QUOTE CART(报价单/购物车) ============ */
body.cart-open { overflow: hidden; }

.cart-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  margin-left: 6px;
  border-radius: 999px;
  background: var(--red);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  vertical-align: middle;
}

.cart-summary {
  margin: 0 0 18px;
  padding: 12px 16px;
  border: 1px dashed var(--line-2);
  border-radius: 10px;
  background: rgba(201, 48, 44, 0.08);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}
.cart-summary .cs-ico { margin-right: 6px; }
.cart-summary strong { color: #fff; }
.cart-summary a { color: var(--red-2); text-decoration: underline; }

.cart-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9700;
  background: rgba(5, 10, 20, 0.72);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}
.cart-backdrop.show { opacity: 1; pointer-events: auto; }

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 9800;
  width: min(420px, 92vw);
  display: flex;
  flex-direction: column;
  background: var(--bg-1);
  border-left: 1px solid var(--line);
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.45);
  transform: translateX(105%);
  transition: transform .32s cubic-bezier(.2, .8, .2, 1);
}
.cart-drawer.open { transform: translateX(0); }

.cart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}
.cart-head h3 { margin: 0; font-size: 18px; color: #fff; }
.cart-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-dim);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: all .2s;
}
.cart-close:hover { background: var(--red); color: #fff; border-color: var(--red); }

.cart-list { flex: 1; overflow-y: auto; padding: 8px 0; }
.cart-empty {
  padding: 60px 24px;
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.8;
}
.cart-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
}
.cart-thumb {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--bg-2);
  flex-shrink: 0;
}
.cart-info { flex: 1; min-width: 0; }
.cart-code {
  display: block;
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--red-2);
  text-transform: uppercase;
}
.cart-name {
  display: block;
  font-size: 14px;
  color: #fff;
  margin: 2px 0 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cart-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.cart-line-price { font-size: 13px; color: var(--gold); }
.cart-remove {
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  border-radius: 6px;
  transition: all .2s;
}
.cart-remove:hover { color: var(--red-2); background: rgba(201, 48, 44, 0.12); }

/* 数量步进(抽屉 + 详情页共用) */
.qty-btn {
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  border-radius: 6px;
  transition: all .2s;
}
.qty-btn:hover { border-color: var(--red); color: var(--red-2); }
.qty-input {
  width: 46px;
  height: 30px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--text);
  text-align: center;
  font-size: 14px;
  border-radius: 6px;
  -moz-appearance: textfield;
}
.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.cart-qty { display: inline-flex; align-items: center; gap: 4px; }

.cart-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--line);
  background: var(--bg-1);
}
.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  color: var(--text-dim);
  font-size: 13px;
}
.cart-total span:first-child { color: #fff; font-weight: 700; font-size: 15px; }
.cart-footer-actions { display: flex; gap: 10px; }
.cart-footer-actions .btn { flex: 1; }

/* ============ TECH ADVANTAGE (首页 CORE TECHNOLOGY，深色主题补充样式) ============ */
.tech-advantage { padding: 110px 0; background: var(--bg-1); }
.tech-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.tech-card {
  display: flex; gap: 26px; align-items: flex-start;
  padding: 36px 32px;
  background: var(--bg-2); border: 1px solid var(--line);
  position: relative; overflow: hidden;
  transition: all 0.35s ease;
}
.tech-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 3px; height: 0; background: var(--red);
  transition: height 0.5s ease;
}
.tech-card:hover { transform: translateY(-4px); border-color: rgba(201,48,44,0.3); background: #162238; }
.tech-card:hover::before { height: 100%; }
.tech-icon {
  width: 64px; height: 64px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 14px;
}
.tech-icon-ultrasonic { background: rgba(201,48,44,0.1); border: 1px solid rgba(201,48,44,0.3); color: var(--red-2); }
.tech-icon-iot { background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.3); color: var(--blue-2); }
.tech-body h3 {
  font-family: 'Oswald', sans-serif; font-weight: 500;
  font-size: 22px; color: #fff; margin-bottom: 12px; letter-spacing: 0.01em;
}
.tech-body > p { font-size: 14px; color: var(--text-dim); line-height: 1.7; margin-bottom: 16px; }
.tech-features { margin-bottom: 20px; }
.tech-features li { display: flex; gap: 10px; padding: 6px 0; color: var(--text-soft); font-size: 14.5px; line-height: 1.5; }
.tech-features li span { color: #34d399; font-weight: 700; flex-shrink: 0; }

@media (max-width: 860px) {
  .tech-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .tech-card { flex-direction: column; }
}

/* ============ SECTION ALIASES (page banner下方内容区) ============ */
.section-sub { color: var(--text-dim); font-size: 15px; line-height: 1.75; margin-top: 12px; margin-bottom: 36px; max-width: 720px; margin-left: auto; margin-right: auto; }
.section-foot { text-align: center; margin-top: 48px; }

.page-section-light { background: var(--bg-0); }
.page-section-alt   { background: var(--bg-0); }

/* ---- solution hero（图 + 文 两栏） ---- */
.solution-hero,
.about-hero {
  display: grid; grid-template-columns: 1.05fr 1fr;
  gap: 56px; align-items: center;
}
.solution-hero-media img,
.about-hero-media img {
  width: 100%; height: 360px; object-fit: cover;
  border-radius: 6px; box-shadow: 0 18px 48px rgba(0,0,0,0.4);
}
.solution-title,
.about-hero h2 {
  font-family: 'Oswald', sans-serif; font-weight: 500;
  color: #fff; font-size: 38px; margin: 14px 0 18px; letter-spacing: 0.01em; line-height: 1.18;
}
.solution-summary,
.about-lead {
  font-size: 15.5px; color: var(--text-dim); line-height: 1.8;
  margin-bottom: 28px;
}

/* ---- rich content（方案详情长文） ---- */
.rich-content { color: var(--text-soft); font-size: 15.5px; line-height: 1.85; max-width: 920px; margin: 0 auto; }
.rich-content h1, .rich-content h2, .rich-content h3 { color: #fff; font-family: 'Oswald', sans-serif; font-weight: 500; margin: 28px 0 12px; }
.rich-content h2 { font-size: 28px; }
.rich-content h3 { font-size: 22px; }
.rich-content p  { margin-bottom: 16px; }
.rich-content ul, .rich-content ol { padding-left: 22px; margin-bottom: 16px; }
.rich-content li { margin-bottom: 6px; }
.rich-content img { max-width: 100%; border-radius: 6px; margin: 14px 0; }
.rich-content a { color: var(--red-2); }
.rich-content a:hover { color: #fff; }

/* ---- feature grid（特性 / 能力列表） ---- */
.feature-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.feature-item {
  background: var(--bg-2); padding: 28px 24px;
  border-radius: 6px; border: 1px solid rgba(255,255,255,0.04);
  transition: transform .25s, border-color .25s;
}
.feature-item:hover { transform: translateY(-4px); border-color: rgba(201,48,44,0.5); }
.feature-ico {
  width: 48px; height: 48px; border-radius: 6px;
  background: rgba(201,48,44,0.12); color: var(--red-2);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 700; margin-bottom: 16px;
}
.feature-ico svg { width: 22px; height: 22px; display: block; }
.feature-item h4 { color: #fff; font-family: 'Oswald', sans-serif; font-weight: 500; font-size: 18px; margin-bottom: 8px; letter-spacing: 0.01em; }
.feature-item p  { color: var(--text-dim); font-size: 14px; line-height: 1.7; }

/* ---- cap grid（核心能力 4 卡） ---- */
.cap-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.cap-item {
  background: var(--bg-2); padding: 32px; border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.04);
  display: flex; flex-direction: column; gap: 10px;
}
.cap-num {
  font-family: 'Oswald', sans-serif; font-weight: 500;
  font-size: 36px; color: var(--red-2); line-height: 1;
}
.cap-item h4 { color: #fff; font-family: 'Oswald', sans-serif; font-weight: 500; font-size: 20px; letter-spacing: 0.01em; }
.cap-item p  { color: var(--text-dim); font-size: 14.5px; line-height: 1.7; }

/* ---- page grid（solutions 列表卡） ---- */
.page-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.page-card {
  background: var(--bg-2); border-radius: 6px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.04);
  transition: transform .25s, border-color .25s;
  color: inherit;
}
.page-card:hover { transform: translateY(-4px); border-color: rgba(201,48,44,0.5); }
.page-card-media img { width: 100%; height: 200px; object-fit: cover; display: block; }
.page-card-body { padding: 22px; }
.page-card-body h3 { color: #fff; font-family: 'Oswald', sans-serif; font-weight: 500; font-size: 22px; margin-bottom: 10px; }
.page-card-body p  { color: var(--text-dim); font-size: 14px; line-height: 1.65; min-height: 60px; }
.page-card-cta { color: var(--red-2); font-weight: 600; font-size: 13.5px; letter-spacing: 0.04em; }

/* ---- contact info grid ---- */
.contact-info-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.contact-info-item {
  background: var(--bg-2); padding: 26px 22px;
  border-radius: 6px; border: 1px solid rgba(255,255,255,0.04);
}
.contact-info-ico {
  width: 44px; height: 44px; border-radius: 6px;
  background: rgba(201,48,44,0.12); color: var(--red-2);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin-bottom: 14px;
}
.contact-info-label { font-size: 12px; color: var(--text-dim); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 8px; }
.contact-info-value { color: #fff; font-size: 14.5px; line-height: 1.65; }
.contact-info-value a { color: #fff; }
.contact-info-value a:hover { color: var(--red-2); }

.contact-form-wrap { max-width: 720px; margin: 0 auto; }

.cta-buttons { display: flex; gap: 14px; flex-wrap: wrap; }

/* about.php CTA 红色背景：特异性提升胜过 .section 的 bg-1 覆盖 */
.section.cta-band.about-cta {
  background: radial-gradient(ellipse at center, #c9302c 0%, #6e0f10 50%, #1a0606 100%);
}

/* CTA 居中变体（about.php / 单按钮跳转） */
.cta-inner.cta-inner-center {
  display: block; text-align: center;
  max-width: 760px; margin: 0 auto;
}
.cta-inner.cta-inner-center .cta-copy { margin-bottom: 30px; }
.cta-inner.cta-inner-center .cta-copy h2 { font-size: 34px; }
.cta-inner.cta-inner-center .cta-copy p  { max-width: 640px; margin-left: auto; margin-right: auto; }
.cta-buttons.cta-buttons-center {
  display: flex; justify-content: center; flex-wrap: wrap;
}
.cta-buttons.cta-buttons-center .btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 16px 38px; font-size: 15px;
}
@media (max-width: 560px) {
  .cta-inner.cta-inner-center .cta-copy h2 { font-size: 26px; }
}

/* ---- article grid ---- */
.article-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.article-card {
  background: var(--bg-2); border-radius: 6px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.04);
  transition: transform .25s, border-color .25s;
  color: inherit;
}
.article-card:hover { transform: translateY(-4px); border-color: rgba(201,48,44,0.5); }
.article-thumb { aspect-ratio: 16/9; background: var(--bg-0); overflow: hidden; }
.article-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.article-thumb-empty {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  font-size: 56px; color: var(--text-dim);
}
.article-body { padding: 22px; }
.article-date { font-size: 12px; color: var(--text-dim); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 8px; }
.article-body h4 { color: #fff; font-family: 'Oswald', sans-serif; font-weight: 500; font-size: 18px; margin-bottom: 10px; line-height: 1.35; }
.article-body p  { color: var(--text-dim); font-size: 14px; line-height: 1.7; min-height: 48px; }
.article-cta { color: var(--red-2); font-size: 13px; font-weight: 600; letter-spacing: 0.04em; }

/* 文章卡 — 无缩略图变体（resources.php 列表用） */
.article-card-text .article-body { padding: 26px 24px 24px; }
.article-card-text .article-body h4 { font-size: 19px; margin-bottom: 12px; }
.article-card-text .article-body p  { font-size: 14px; line-height: 1.75; min-height: 72px; }
.article-meta {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-dim);
  letter-spacing: 0.04em; margin-bottom: 12px;
  text-transform: uppercase;
}
.article-meta .article-dot { opacity: 0.6; }

/* 左对齐标题 + 红色短下划线（resources.php 用） */
.title-bar {
  margin: 0 0 36px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
  position: relative;
}
.title-bar h2 {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 32px;
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin: 0 0 12px;
}
.title-bar::after {
  content: '';
  position: absolute;
  left: 0; bottom: -1px;
  width: 64px; height: 2px;
  background: var(--red-2);
}
.title-foot {
  margin-top: 36px;
}

/* ---- empty state ---- */
.empty-state {
  padding: 48px; text-align: center;
  background: var(--bg-2); border-radius: 6px;
  color: var(--text-dim); font-size: 15px;
  border: 1px dashed rgba(255,255,255,0.08);
}
.empty-state a { color: var(--red-2); }

/* ============ CONTACT — LOCATION & WORKING HOURS ============ */
.location-section {
  padding: 64px 0 48px;
  background: var(--bg-1);
}
.location-card {
  padding: 56px 32px 48px;
  text-align: center;
  border-radius: 8px;
  background-color: #14223d;
  background-image:
    linear-gradient(rgba(40,80,140,0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(40,80,140,0.10) 1px, transparent 1px);
  background-size: 38px 38px;
  background-position: -1px -1px;
  border: 1px solid rgba(255,255,255,0.04);
  position: relative;
}
.location-pin {
  width: 72px; height: 72px;
  margin: 0 auto 22px;
  border-radius: 50%;
  border: 1px solid rgba(201,48,44,0.35);
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle, rgba(201,48,44,0.18) 0%, rgba(201,48,44,0) 70%);
}
.location-title {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 34px;
  color: #fff;
  letter-spacing: 0.02em;
  margin: 0 0 14px;
}
.location-desc {
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.7;
  max-width: 620px;
  margin: 0 auto 28px;
}
.location-map-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 26px;
  border: 1.5px solid var(--red-2);
  color: var(--red-2);
  border-radius: 2px;
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}
.location-map-btn:hover {
  background: var(--red-2);
  color: #fff;
}
.location-map-btn svg { transition: transform 0.2s; }
.location-map-btn:hover svg { transform: translateX(3px); }

.working-hours-section {
  padding: 16px 0 80px;
  background: var(--bg-1);
}
.working-hours-title {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 30px;
  color: #fff;
  letter-spacing: 0.02em;
  margin: 0 0 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
}
.working-hours-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.wh-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  background: var(--bg-2);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 4px;
}
.wh-day {
  color: var(--text-dim);
  font-size: 15px;
  letter-spacing: 0.02em;
}
.wh-time {
  color: #fff;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

@media (max-width: 700px) {
  .location-card { padding: 44px 22px 38px; }
  .location-title { font-size: 28px; }
  .working-hours-grid { grid-template-columns: 1fr; }
  .working-hours-title { font-size: 24px; }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1100px) {
  .feature-grid, .contact-info-grid { grid-template-columns: repeat(2, 1fr); }
  .article-grid, .page-grid       { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .solution-hero, .about-hero { grid-template-columns: 1fr; }
  .cap-grid                   { grid-template-columns: 1fr; }
  .solution-hero-media img, .about-hero-media img { height: 260px; }
  .solution-title, .about-hero h2                { font-size: 30px; }
}
@media (max-width: 560px) {
  .feature-grid, .contact-info-grid, .article-grid, .page-grid { grid-template-columns: 1fr; }
  .feature-item, .cap-item { padding: 22px; }
}