/* RiGeBa Lighting — Pro Stage Lighting Independent Site
   ============================================== */

:root {
  --bg: #0a0a0a;
  --bg-2: #111111;
  --surface: #1a1a1a;
  --surface-2: #222;
  --border: #2a2a2a;
  --text: #ffffff;
  --text-2: #a0a0a0;
  --text-3: #6b6b6b;
  --primary: #ff6b00;
  --primary-hover: #ff8533;
  --accent: #00d4ff;
  --accent-2: #7c3aed;
  --shadow: 0 10px 30px rgba(0,0,0,0.3);
  --radius: 8px;
  --radius-lg: 16px;
  --container: 1280px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ========== HEADER ========== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent-2));
  border-radius: 8px;
  display: inline-grid;
  place-items: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
}
/* .nav 与 .nav-dropdown 撑满 header 的 72px 高度 —— 这是下拉不中断的几何基础：
   鼠标从主菜单往下移到下拉的整段路径都落在 .nav-dropdown 内部，hover 不会断。
   .nav > a（Projects 这种纯链接）保持内容高度，align-items: center 让它在 72px 中居中。 */
.nav {
  display: flex;
  gap: 28px;
  align-items: center;
  align-self: stretch;
}
.nav-dropdown {
  align-self: stretch;
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.nav-dropdown > a {
  align-self: stretch;
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav a,
.nav-dropdown > a {
  font-size: 0.92rem;
  color: var(--text-2);
  position: relative;
  transition: var(--transition);
}
.nav a:hover, .nav a.active { color: var(--text); }
.nav > a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: var(--transition);
}
.nav-dropdown > a::after {
  content: '';
  position: absolute;
  bottom: 14px;
  left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: var(--transition);
}
.nav a:hover::after, .nav a.active::after,
.nav-dropdown:hover > a::after,
.nav-dropdown > a.active::after { transform: scaleX(1); }
.nav-dropdown > a { display: flex; align-items: center; gap: 4px; }
.header-right { display: flex; align-items: center; gap: 10px; }
.header-icon {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  border-radius: var(--radius);
  font-size: 1.1rem;
  color: var(--text-2);
  background: transparent;
  transition: var(--transition);
}
.header-icon:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text);
}
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--surface);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--text-2);
  border: 1px solid var(--border);
  cursor: pointer;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  transition: var(--transition);
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  border: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 107, 0, 0.25);
}
.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 0, 0.35);
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.4);
}
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 80px 0;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(255, 107, 0, 0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 60%, rgba(124, 58, 237, 0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(0, 212, 255, 0.12) 0%, transparent 60%),
    linear-gradient(180deg, #0a0a0a 0%, #111 100%);
  z-index: 0;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-text { max-width: 620px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 107, 0, 0.1);
  border: 1px solid rgba(255, 107, 0, 0.3);
  border-radius: 100px;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}
.hero h1 span {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.15rem;
  color: var(--text-2);
  margin-bottom: 36px;
  max-width: 540px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text-3);
  margin-top: 4px;
}

/* Hero visual */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 560px;
  margin-left: auto;
}
.hero-stage {
  position: relative;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, #1a1a1a 0%, #0a0a0a 70%);
  border-radius: 50%;
  border: 1px solid var(--border);
  overflow: hidden;
}
.hero-stage::before {
  content: '';
  position: absolute;
  inset: 0;
  background: conic-gradient(from 0deg at center,
    transparent 0%,
    rgba(255, 107, 0, 0.4) 8%,
    transparent 16%,
    rgba(0, 212, 255, 0.4) 32%,
    transparent 40%,
    rgba(124, 58, 237, 0.4) 56%,
    transparent 64%,
    rgba(255, 107, 0, 0.4) 80%,
    transparent 88%);
  animation: rotate 12s linear infinite;
}
@keyframes rotate { to { transform: rotate(360deg); } }
.hero-stage-content {
  position: absolute;
  inset: 30%;
  background: var(--bg);
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  z-index: 2;
}
.hero-stage-icon {
  font-size: 4rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stage-img {
  position: absolute;
  z-index: 3;
  width: 110px;
  height: 110px;
  border-radius: 16px;
  background: linear-gradient(135deg, #2a2a2a, #1a1a1a);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  font-size: 2.5rem;
  animation: float 4s ease-in-out infinite;
}
.hero-stage-img:nth-of-type(2) { top: 8%; left: -8%; animation-delay: 0s; }
.hero-stage-img:nth-of-type(3) { top: 22%; right: -12%; animation-delay: 0.6s; }
.hero-stage-img:nth-of-type(4) { bottom: 8%; left: -8%; animation-delay: 1.2s; }
.hero-stage-img:nth-of-type(5) { bottom: 22%; right: -12%; animation-delay: 1.8s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

/* ========== SECTION ========== */
section { padding: 100px 0; position: relative; }
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}
.section-eyebrow {
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.section-sub { font-size: 1.05rem; color: var(--text-2); }

/* ========== TRUST BAR ========== */
.trust-bar {
  padding: 40px 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.trust-text {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 32px;
}
.trust-logos {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
  opacity: 0.6;
  font-weight: 700;
  letter-spacing: 1px;
}
.trust-logos div {
  font-size: 0.95rem;
  color: var(--text-2);
}

/* ========== CATEGORY GRID ========== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.category-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.category-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}
.category-thumb {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
  display: grid;
  place-items: center;
  font-size: 4rem;
  position: relative;
  overflow: hidden;
}
.category-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, currentColor 0%, transparent 70%);
  opacity: 0.18;
}
.category-info { padding: 24px; }
.category-info h3 {
  font-size: 1.2rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.category-info p { font-size: 0.9rem; color: var(--text-3); }
.category-arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface-2);
  display: inline-grid;
  place-items: center;
  transition: var(--transition);
}
.category-card:hover .category-arrow {
  background: var(--primary);
  transform: translateX(4px);
}
.cat-1 { color: #ff6b00; }
.cat-2 { color: #00d4ff; }
.cat-3 { color: #7c3aed; }
.cat-4 { color: #ec4899; }
.cat-5 { color: #10b981; }
.cat-6 { color: #fbbf24; }
.cat-7 { color: #14b8a6; }

/* ========== PRODUCTS GRID ========== */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
}
.product-thumb {
  aspect-ratio: 1/1;
  background: linear-gradient(135deg, #1a1a1a, #0a0a0a);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}
.product-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255, 107, 0, 0.15) 0%, transparent 60%);
}
.product-thumb-icon {
  font-size: 4.5rem;
  z-index: 1;
  filter: drop-shadow(0 0 20px currentColor);
}
.product-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
  transition: transform 0.4s ease;
}
.product-card:hover .product-thumb-img {
  transform: scale(1.05);
}
.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  z-index: 2;
}
.product-badge.hot { background: var(--primary); color: #fff; }
.product-badge.new { background: var(--accent); color: #111; }
.product-info { padding: 20px; }
/* Card alignment. Product names render anywhere from 1 to 5 lines (the longest
   model name in the catalogue is 106 characters), which used to push the
   Details/Quote row to a different height in every card. Reserving a FIXED
   title box makes the buttons line up across a row; anything longer than the
   box is clipped with an ellipsis. Tune the line count in ONE place below. */
.product-info h4 {
  --card-title-lines: 5;
  font-size: 1rem; margin-bottom: 8px; line-height: 1.3;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: var(--card-title-lines);
  line-clamp: var(--card-title-lines);
  overflow: hidden;
  min-height: calc(var(--card-title-lines) * 1.3em);
  overflow-wrap: break-word;
}
.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-3);
  margin-bottom: 12px;
}
/* Pin the tagline to one line so it can never add height to only some cards. */
.product-meta span {
  flex: 1 1 auto;
  min-width: 0;
  margin-right: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.product-meta .product-rating { flex: 0 0 auto; margin-right: 0; }
.product-rating { color: #fbbf24; }
.product-price { font-size: 0.95rem; color: var(--text-2); margin-bottom: 16px; }
.product-price strong { color: var(--primary); font-size: 1.15rem; }
.product-actions { display: flex; gap: 8px; }
.product-actions .btn { flex: 1; padding: 10px; font-size: 0.85rem; }

/* ========== APPLICATIONS ========== */
.applications-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.app-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
  transition: var(--transition);
}
.app-card:hover { transform: translateY(-4px); }
.app-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: var(--transition);
}
.app-card:hover .app-card-bg { transform: scale(1.08); }
.app-card-bg.bar { background: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%); }
.app-card-bg.church { background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%); }
.app-card-bg.concert { background: linear-gradient(135deg, #ff6b00 0%, #ec4899 100%); }
.app-card-bg.auditorium { background: linear-gradient(135deg, #10b981 0%, #00d4ff 100%); }
.app-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.85) 100%);
}
.app-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  z-index: 2;
}
.app-card-content h3 { font-size: 1.4rem; margin-bottom: 6px; }
.app-card-content p { font-size: 0.9rem; color: var(--text-2); }

/* ========== FEATURES ========== */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.feature-card { text-align: center; padding: 32px 20px; }
.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent-2));
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 1.8rem;
  box-shadow: 0 8px 24px rgba(255, 107, 0, 0.25);
}
.feature-card h4 { font-size: 1.1rem; margin-bottom: 10px; }
.feature-card p { font-size: 0.95rem; color: var(--text-2); }

/* ========== CERTIFICATIONS ========== */
.cert-grid { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.cert-badge {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 140px;
  transition: var(--transition);
}
.cert-badge:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}
.cert-icon {
  font-size: 1.4rem;
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 1px;
}
.cert-name {
  font-size: 0.8rem;
  color: var(--text-2);
  text-align: center;
  font-weight: 600;
}

/* ========== TESTIMONIALS ========== */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
}
.testimonial-quote {
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 24px;
  font-style: italic;
}
.testimonial-quote::before {
  content: '"';
  font-size: 4rem;
  color: var(--primary);
  position: absolute;
  top: -20px;
  left: 24px;
  line-height: 1;
}
.stars { color: #fbbf24; font-size: 0.95rem; margin-bottom: 16px; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  display: grid;
  place-items: center;
  font-weight: 700;
  color: #fff;
}
.author-info h5 { font-size: 0.95rem; margin-bottom: 2px; }
.author-info p { font-size: 0.8rem; color: var(--text-3); }

/* ========== CTA SECTION ========== */
.cta-section {
  padding: 100px 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(255, 107, 0, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 50%, rgba(0, 212, 255, 0.18) 0%, transparent 60%),
    var(--bg-2);
  text-align: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-section h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 20px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.cta-section p {
  font-size: 1.15rem;
  color: var(--text-2);
  max-width: 600px;
  margin: 0 auto 36px;
}

/* ========== FOOTER ========== */
footer {
  background: var(--bg-2);
  padding: 80px 0 32px;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}
.footer-brand p {
  color: var(--text-2);
  font-size: 0.9rem;
  margin: 16px 0 24px;
  max-width: 360px;
}
.newsletter {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 360px;
}
.newsletter input {
  flex: 1;
  padding: 12px 16px;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: inherit;
  outline: none;
}
.newsletter input::placeholder { color: var(--text-3); }
.newsletter button {
  padding: 12px 20px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}
.footer-col h4 { font-size: 0.95rem; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { font-size: 0.9rem; color: var(--text-2); }
.footer-col a:hover { color: var(--primary); }
.social-links { display: flex; gap: 10px; margin-top: 20px; }
.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  color: var(--text-2);
}
.social-links a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-3);
}

/* ========== PAGES: Products / Detail / RFQ / About ========== */
.page-hero {
  padding: 80px 0 60px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(255, 107, 0, 0.12) 0%, transparent 60%),
    var(--bg-2);
}
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-3);
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { color: var(--text-3); }

/* Filter / Toolbar */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.filter-pill {
  padding: 8px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-2);
  cursor: pointer;
  transition: var(--transition);
}
.filter-pill.active, .filter-pill:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.toolbar-right {
  margin-left: auto;
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-2);
}
.toolbar-right select {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: var(--radius);
  font-family: inherit;
  cursor: pointer;
}

/* Product Detail */
.detail-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  margin-bottom: 80px;
}
.gallery-main {
  aspect-ratio: 1/1;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #1a1a1a, #0a0a0a);
  display: grid;
  place-items: center;
  font-size: 9rem;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
}
.gallery-main::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255, 107, 0, 0.18) 0%, transparent 60%);
  pointer-events: none;
}
.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.gallery-thumb {
  aspect-ratio: 1/1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  font-size: 1.8rem;
  cursor: pointer;
  transition: var(--transition);
}
.gallery-thumb.active {
  border-color: var(--primary);
  background: rgba(255, 107, 0, 0.08);
}
.gallery-thumb:hover { border-color: var(--primary); }

.gallery-main-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}
.gallery-thumb {
  overflow: hidden;
  padding: 4px;
}
.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}

.detail-info h1 {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}
.detail-rating {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  color: #fbbf24;
  font-size: 0.95rem;
}
.detail-rating small { color: var(--text-3); }
.detail-price-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}
.detail-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}
.detail-price small { font-size: 0.85rem; color: var(--text-3); }
.spec-list {
  margin: 24px 0;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.spec-row {
  display: flex;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.95rem;
}
.spec-row .label { width: 140px; color: var(--text-3); }
.spec-row .value { color: var(--text); }

.qty-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.qty-stepper button {
  width: 40px;
  height: 40px;
  color: var(--text);
  font-size: 1.1rem;
}
.qty-stepper button:hover { background: rgba(255, 255, 255, 0.08); }
.qty-stepper input {
  width: 60px;
  height: 40px;
  background: transparent;
  border: none;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  color: var(--text);
  text-align: center;
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
}

/* Tabs */
.tabs { margin-top: 60px; }
.tab-nav {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
  overflow-x: auto;
}
.tab-nav button {
  padding: 14px 24px;
  background: transparent;
  color: var(--text-2);
  font-size: 0.95rem;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.tab-nav button.active,
.tab-nav button:hover {
  color: var(--text);
  border-bottom-color: var(--primary);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.tab-panel h3 {
  font-size: 1.4rem;
  margin-bottom: 16px;
}
.tab-panel p {
  color: var(--text-2);
  margin-bottom: 16px;
  font-size: 1rem;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.download-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: var(--transition);
}
.download-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.download-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(255, 107, 0, 0.1);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
}
.download-info small { color: var(--text-3); font-size: 0.8rem; }

/* RFQ */
.rfq-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
}
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.form-card h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}
.form-card > p {
  color: var(--text-2);
  margin-bottom: 28px;
  font-size: 0.95rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-group { display: flex; flex-direction: column; margin-bottom: 16px; }
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--primary); }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-status {
  margin-top: 16px;
  font-size: 0.9rem;
}
.form-status.loading { color: var(--accent); }
.form-status.success { color: #10b981; }

.aside-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 16px;
}
.aside-card h3 { font-size: 1.05rem; margin-bottom: 16px; }
.contact-row {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.9rem;
}
.contact-row:last-child { border-bottom: none; }
.contact-row strong { color: var(--text-3); min-width: 100px; }

.process-list { counter-reset: step; }
.process-list li {
  counter-increment: step;
  position: relative;
  padding: 16px 0 16px 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.process-list li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 14px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #fff;
}
.process-list li strong {
  display: block;
  margin-bottom: 4px;
}
.process-list li small { color: var(--text-3); font-size: 0.85rem; }

/* About */
.factory-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 40px 0;
}
.factory-tile {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  font-size: 2rem;
  color: var(--text-3);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin: 40px 0;
}
.stat-block {
  text-align: center;
  padding: 32px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.stat-block .stat-num { font-size: 2.5rem; }
.timeline {
  position: relative;
  margin: 40px auto;
  max-width: 800px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
  position: relative;
}
.timeline-item:nth-child(odd) .timeline-content { grid-column: 1; text-align: right; }
.timeline-item:nth-child(even) .timeline-content { grid-column: 2; }
.timeline-item .timeline-year {
  position: absolute;
  left: 50%;
  top: 16px;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 700;
}
.timeline-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.timeline-content h4 { font-size: 1rem; margin-bottom: 6px; }
.timeline-content p { color: var(--text-2); font-size: 0.9rem; }

/* Fade-up animation */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ========== COOKIE CONSENT BANNER ========== */
.sl-cookie {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.96);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-top: 1px solid #2a2a2a;
  box-shadow: 0 -10px 40px rgba(0,0,0,0.4);
  animation: slCookieUp 0.4s ease-out;
}
@keyframes slCookieUp {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}
.sl-cookie__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.sl-cookie__msg {
  flex: 1;
  min-width: 280px;
  font-size: 0.93rem;
  color: #d0d0d0;
  line-height: 1.5;
}
.sl-cookie__msg strong { color: #fff; }
.sl-cookie__msg a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.sl-cookie__actions { display: flex; gap: 10px; }
.sl-cookie__btn {
  padding: 10px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: 0.2s ease;
}
.sl-cookie__btn--primary { background: #ff6b00; color: #fff; }
.sl-cookie__btn--primary:hover { background: #ff8533; }
.sl-cookie__btn--ghost {
  background: transparent;
  color: #a0a0a0;
  border: 1px solid #2a2a2a;
}
.sl-cookie__btn--ghost:hover { color: #fff; border-color: #444; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1100px) {
  .nav { gap: 18px; }
  .nav a,
  .nav-dropdown > a { font-size: 0.88rem; }
  .header-right .btn { padding: 10px 18px; font-size: 0.85rem; }
}

@media (max-width: 960px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { max-width: 400px; margin: 40px auto 0; }
  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    flex-direction: column;
    gap: 6px;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    z-index: 100;
    box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  /* 移动端纵向菜单：取消桌面端的整高拉伸 */
  .nav > a,
  .nav-dropdown {
    align-self: auto;
    align-items: center;
  }
  .nav.open a,
  .nav.open .nav-dropdown > a {
    padding: 12px 0;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }
  .menu-toggle { display: flex; }
  .product-grid, .category-grid, .applications-grid,
  .features-grid, .testimonials-grid,
  .details-grid, .rfq-grid, .footer-grid,
  .factory-grid, .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .download-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  section { padding: 60px 0; }
  .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .product-grid, .category-grid, .applications-grid,
  .features-grid, .testimonials-grid,
  .footer-grid, .factory-grid, .stats-grid,
  .rfq-grid, .details-grid,
  .form-row {
    grid-template-columns: 1fr;
  }
  /* Single column needs a tighter gap than the 60px desktop split. */
  .rfq-grid { gap: 28px; }
  .header-right .btn { display: none; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .timeline-item { grid-template-columns: 1fr; }
  .timeline::before { left: 16px; }
  .timeline-item .timeline-year { left: 16px; transform: none; }
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    grid-column: 1;
    text-align: left;
    margin-left: 56px;
  }
  .form-card { padding: 24px; }
}

/* ========== LOADING / EMPTY STATES ========== */
.loading-placeholder {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-3);
  font-size: 0.95rem;
  grid-column: 1 / -1;
  width: 100%;
}

.loading-placeholder::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-right: 8px;
  border: 2px solid var(--primary);
  border-top-color: transparent;
  border-radius: 50%;
  vertical-align: middle;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-3);
}

.empty-state h3 {
  color: var(--text-2);
  margin-bottom: 12px;
  font-weight: 500;
}

/* ========== PRODUCT CARD ANIMATIONS ========== */
.product-card {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.5s ease-out forwards;
}

.product-card:nth-child(1) { animation-delay: 0.05s; }
.product-card:nth-child(2) { animation-delay: 0.1s; }
.product-card:nth-child(3) { animation-delay: 0.15s; }
.product-card:nth-child(4) { animation-delay: 0.2s; }
.product-card:nth-child(5) { animation-delay: 0.25s; }
.product-card:nth-child(6) { animation-delay: 0.3s; }
.product-card:nth-child(7) { animation-delay: 0.35s; }
.product-card:nth-child(8) { animation-delay: 0.4s; }

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== HEADER DROPDOWN ========== */
.nav-dropdown {
  position: relative;
  flex-shrink: 0;
}
.nav-dropdown > a > .caret {
  font-size: 0.7em;
  opacity: 0.75;
  transition: transform 0.2s ease;
}
.nav-dropdown:hover > a > .caret,
.nav-dropdown.is-open > a > .caret { transform: rotate(180deg); }
/* .dropdown-menu 紧贴 .nav-dropdown 底部（= header 底部），自身 padding-top 4px
   作为「不可见但可 hover」的桥接区：极小间隙让视觉上贴住 header，
   同时保证鼠标下移过程全程在 .nav-dropdown 子树内 */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: -14px;
  padding-top: 4px;
  min-width: 240px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.12s ease, visibility 0.12s;
  z-index: 101;
}
.dropdown-inner {
  position: relative;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 0;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45);
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu,
.nav-dropdown.is-open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}
.dropdown-inner a {
  display: block;
  padding: 10px 20px;
  font-size: 0.9rem;
  color: var(--text-2);
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
}
.dropdown-inner a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.06);
}

/* ========== APPLICATION TAGS ========== */
.application-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* 二级品类筛选（products 页） */
.sub-toolbar {
  margin-top: -8px;
  flex-wrap: wrap;
}
.sub-toolbar:empty { display: none; }
.sub-toolbar .filter-pill {
  font-size: 0.85rem;
  padding: 7px 14px;
  opacity: 0.85;
}
.sub-toolbar .filter-pill.active { opacity: 1; }

/* 产品卡片上的分类行 */
.product-catline {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 6px;
}
.application-tags span {
  padding: 8px 18px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.9rem;
  color: var(--text-2);
}

/* ========== SOLUTIONS GRID ========== */
.featured-skus {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 14px 0 2px;
}
.featured-skus .meta-label { font-size: 0.8rem; }
.sku-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.sku-chip {
  display: inline-block;
  padding: 5px 11px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
  background: rgba(255, 107, 0, 0.1);
  border: 1px solid rgba(255, 107, 0, 0.35);
  border-radius: 100px;
  transition: var(--transition);
}
.sku-chip:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-ghost-secondary { border-color: rgba(255, 255, 255, 0.18); }
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.solution-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}
.solution-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.solution-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(255,107,0,0.1);
  border: 1px solid rgba(255,107,0,0.2);
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.solution-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}
.solution-card p {
  color: var(--text-2);
  font-size: 0.95rem;
  margin-bottom: 16px;
}
.solution-tags {
  display: block;
  font-size: 0.8rem;
  color: var(--text-3);
  margin-bottom: 20px;
}
.link-arrow {
  display: inline-flex;
  align-items: center;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
}
.solution-card:hover .link-arrow {
  color: var(--primary-hover);
}

/* ========== CONTROL BAR ========== */
.control-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}
.control-item {
  padding: 16px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

/* ========== OEM PROCESS ========== */
.oem-process {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.oem-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.oem-step span {
  display: inline-block;
  width: 40px;
  height: 40px;
  line-height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  margin-bottom: 16px;
}
.oem-step h4 {
  font-size: 1rem;
  margin-bottom: 8px;
}
.oem-step p {
  font-size: 0.85rem;
  color: var(--text-2);
  line-height: 1.5;
}

/* ========== SOLUTION PILLARS ========== */
.solution-pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.pillar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}
.pillar h4 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--primary);
}
.pillar p {
  font-size: 0.9rem;
  color: var(--text-2);
}

/* ========== PROJECTS GRID ========== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
}
.project-thumb {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
}
.project-thumb.concert { background: linear-gradient(135deg, #2a1a0a, #1a1a1a); }
.project-thumb.festival { background: linear-gradient(135deg, #1a0a2a, #1a1a1a); }
.project-thumb.rental { background: linear-gradient(135deg, #0a1a2a, #1a1a1a); }
.project-thumb.theatre { background: linear-gradient(135deg, #2a2a0a, #1a1a1a); }
.project-thumb.club { background: linear-gradient(135deg, #1a0a1a, #1a1a1a); }
.project-thumb.outdoor { background: linear-gradient(135deg, #0a2a1a, #1a1a1a); }
.project-card h3 {
  padding: 20px 20px 6px;
  font-size: 1.15rem;
}
.project-card p {
  padding: 0 20px 20px;
  font-size: 0.9rem;
  color: var(--text-2);
}

/* ========== RESOURCES GRID ========== */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.resource-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.resource-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}
.resource-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}
.resource-card h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}
.resource-card p {
  font-size: 0.85rem;
  color: var(--text-2);
}

/* ========== WHY GRID ========== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.why-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.why-item span {
  display: inline-block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
}
.why-item h4 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}
.why-item p {
  font-size: 0.9rem;
  color: var(--text-2);
}

/* ---------- PROJECTS PAGE — PROFESSIONAL EDITION ---------- */
.case-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.case-meta span {
  font-size: 0.76rem; padding: 5px 12px; border-radius: 20px;
  border: 1px solid var(--border); background: rgba(255, 255, 255, 0.04);
  color: var(--text-2);
}
.case-meta span b { color: var(--text); font-weight: 600; }

.case-kpis {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--border);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.case-kpi { background: var(--surface); padding: 20px 14px; text-align: center; }
.case-kpi .k { display: block; font-size: 1.4rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
.case-kpi .v { font-size: 0.73rem; color: var(--text-2); text-transform: uppercase; letter-spacing: 0.5px; }

.case-quote {
  padding: 24px 36px 28px; border-top: 1px solid var(--border);
  background: rgba(255, 107, 0, 0.04);
}
.case-quote p { font-size: 0.98rem; line-height: 1.8; color: var(--text); }
.case-quote .who {
  display: block; margin-top: 12px; font-size: 0.82rem; color: var(--text-3);
}

.nda-note {
  font-size: 0.86rem; color: var(--text-2); line-height: 1.75;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius); padding: 14px 18px; margin-bottom: 36px;
}
.nda-note strong { color: var(--text); }

.region-lead {
  display: block; margin-top: 12px; font-size: 0.82rem !important;
  color: var(--primary) !important; font-weight: 600;
}
.case-thumb { position: relative; }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; }

/* ========== CTA BUTTONS ========== */
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== SOLUTIONS PAGE — PROFESSIONAL EDITION ========== */
.sol-trust {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 36px;
}
.sol-trust div { background: var(--bg-2); padding: 20px 12px; text-align: center; }
.sol-trust .n { display: block; font-size: 1.55rem; font-weight: 800; color: var(--primary); }
.sol-trust .l { font-size: 0.74rem; color: var(--text-2); text-transform: uppercase; letter-spacing: 0.6px; }

.deliver-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.deliver-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.deliver-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.deliver-num {
  width: 34px; height: 34px; border-radius: 50%;
  background: rgba(255, 107, 0, 0.12); color: var(--primary);
  display: grid; place-items: center; font-weight: 800; font-size: 0.9rem;
  margin-bottom: 14px;
}
.deliver-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.deliver-card p { font-size: 0.9rem; color: var(--text-2); line-height: 1.7; }

.cap-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.cap-item { border-top: 2px solid var(--primary); padding-top: 16px; }
.cap-item h4 { font-size: 0.98rem; margin-bottom: 8px; }
.cap-item p { font-size: 0.85rem; color: var(--text-2); line-height: 1.65; }

.sol-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 44px;
  scroll-margin-top: 90px;
}
.sol-block-head { display: grid; grid-template-columns: 1fr 1.15fr; }
.sol-gallery { background: var(--bg-2); padding: 22px; }
.sol-gallery-main {
  aspect-ratio: 1/1; border-radius: var(--radius); overflow: hidden;
  background: var(--surface-2); margin-bottom: 12px;
}
.sol-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.sol-gallery-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.sol-gallery-thumbs div {
  aspect-ratio: 1/1; border-radius: 6px; overflow: hidden;
  background: var(--surface-2); border: 1px solid var(--border);
}
.sol-gallery-thumbs img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.sol-gallery-thumbs div:hover img { transform: scale(1.08); }

.sol-intro { padding: 36px 36px 30px; }
.sol-eyebrow {
  font-size: 0.74rem; color: var(--primary); text-transform: uppercase;
  letter-spacing: 1.5px; font-weight: 700; margin-bottom: 10px;
}
.sol-intro h2 { font-size: 1.85rem; margin-bottom: 12px; }
.sol-intro > p { color: var(--text-2); line-height: 1.75; }
.venue-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.venue-chip {
  font-size: 0.78rem; padding: 5px 12px; border: 1px solid var(--border);
  border-radius: 20px; color: var(--text-2); background: rgba(255, 255, 255, 0.03);
}

.sol-columns { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--border); }
.sol-col { padding: 28px 36px; }
.sol-col + .sol-col { border-left: 1px solid var(--border); }
.sol-col h4 {
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px;
  color: var(--text-3); margin-bottom: 18px;
}
.sol-col li {
  position: relative; padding-left: 24px; margin-bottom: 14px;
  font-size: 0.92rem; color: var(--text-2); line-height: 1.7;
}
.sol-col li::before {
  content: ''; position: absolute; left: 0; top: 9px;
  width: 8px; height: 8px; border-radius: 2px;
}
.sol-challenge li::before { background: #555; }
.sol-approach li::before { background: var(--primary); }
.sol-col li strong { color: var(--text); font-weight: 600; }

.sol-config { padding: 26px 36px; border-top: 1px solid var(--border); }
.sol-config h4 {
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px;
  color: var(--text-3); margin-bottom: 14px;
}
.cfg-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.cfg-table th {
  text-align: left; padding: 10px 12px; background: rgba(255, 255, 255, 0.03);
  color: var(--text-3); font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.6px; font-weight: 600;
}
.cfg-table td { padding: 11px 12px; border-top: 1px solid var(--border); color: var(--text-2); }
.cfg-table td:first-child { color: var(--text); font-weight: 500; }
.cfg-table a { color: var(--primary); font-weight: 600; }
.cfg-table a:hover { text-decoration: underline; }
.cfg-table tr:hover td { background: rgba(255, 255, 255, 0.02); }

.sol-specs { padding: 0 36px 22px; }
.spec-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.spec-chip {
  font-size: 0.78rem; padding: 6px 12px;
  background: rgba(0, 212, 255, 0.08); border: 1px solid rgba(0, 212, 255, 0.25);
  color: var(--accent); border-radius: 4px;
}
.sol-cta-row { display: flex; flex-wrap: wrap; gap: 12px; padding: 0 36px 34px; }

.sol-process { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; counter-reset: step; }
.proc-step { position: relative; padding-top: 40px; }
.proc-step::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: 0; left: 0; width: 28px; height: 28px;
  border-radius: 50%; background: var(--primary); color: #fff;
  display: grid; place-items: center; font-size: 0.85rem; font-weight: 800;
}
.proc-step::after {
  content: ''; position: absolute; top: 14px; left: 32px; right: 4px;
  height: 1px; background: var(--border);
}
.proc-step:last-child::after { display: none; }
.proc-step h4 { font-size: 0.92rem; margin-bottom: 6px; }
.proc-step p { font-size: 0.83rem; color: var(--text-2); line-height: 1.6; }

.sol-faq { max-width: 940px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; text-align: left; padding: 20px 0; font-size: 1rem;
  font-weight: 600; color: var(--text); display: flex;
  justify-content: space-between; align-items: center; gap: 16px; cursor: pointer;
}
.faq-q:hover { color: var(--primary); }
.faq-q .ic { color: var(--primary); font-size: 1.3rem; transition: transform 0.2s; flex-shrink: 0; }
.faq-item.open .faq-q .ic { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.open .faq-a { max-height: 420px; }
.faq-a p { padding: 0 0 20px; color: var(--text-2); line-height: 1.8; font-size: 0.94rem; }

/* ========== SOLUTIONS DETAIL PAGE ========== */
.solutions-detail-grid {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.solution-detail-card {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.solution-detail-thumb {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
  min-height: 100%;
}
.solution-detail-thumb.concert { background: linear-gradient(135deg, #2a1a0a, #1a1a1a); }
.solution-detail-thumb.rental { background: linear-gradient(135deg, #0a1a2a, #1a1a1a); }
.solution-detail-thumb.theatre { background: linear-gradient(135deg, #2a2a0a, #1a1a1a); }
.solution-detail-thumb.club { background: linear-gradient(135deg, #1a0a1a, #1a1a1a); }
.solution-detail-thumb.church { background: linear-gradient(135deg, #1a1a0a, #1a1a1a); }
.solution-detail-thumb.event { background: linear-gradient(135deg, #2a0a1a, #1a1a1a); }
.solution-detail-thumb.outdoor { background: linear-gradient(135deg, #0a2a1a, #1a1a1a); }
.solution-detail-content {
  padding: 40px 40px 40px 0;
}
.solution-detail-content h2 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}
.solution-detail-content p {
  color: var(--text-2);
  margin-bottom: 20px;
}
.solution-meta {
  margin-bottom: 24px;
}
.meta-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.meta-tags {
  font-size: 0.95rem;
  color: var(--text);
}
.solution-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

/* ========== PROJECTS PAGE ========== */
.project-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 32px 0 8px;
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg, var(--radius));
  text-align: center;
}
.project-stats .stat-num {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}
.project-stats .stat-label {
  font-size: 0.85rem;
  color: var(--text-2);
  margin-top: 6px;
}
.case-skus {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 12px 0 14px;
}
.case-skus .meta-label { font-size: 0.78rem; }
.case-card { display: flex; flex-direction: column; }
.case-card .case-content { display: flex; flex-direction: column; flex: 1; }
.case-card .link-arrow { margin-top: auto; }
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}
.filter-pill {
  padding: 10px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.9rem;
  color: var(--text-2);
  cursor: pointer;
  transition: var(--transition);
}
.filter-pill:hover, .filter-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.case-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}
.case-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
}
.case-thumb.concert { background: linear-gradient(135deg, #2a1a0a, #1a1a1a); }
.case-thumb.festival { background: linear-gradient(135deg, #1a0a2a, #1a1a1a); }
.case-thumb.rental { background: linear-gradient(135deg, #0a1a2a, #1a1a1a); }
.case-thumb.theatre { background: linear-gradient(135deg, #2a2a0a, #1a1a1a); }
.case-thumb.club { background: linear-gradient(135deg, #1a0a1a, #1a1a1a); }
.case-thumb.church { background: linear-gradient(135deg, #1a1a0a, #1a1a1a); }
.case-thumb.outdoor { background: linear-gradient(135deg, #0a2a1a, #1a1a1a); }
.case-content {
  padding: 28px;
}
.case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255,107,0,0.1);
  border: 1px solid rgba(255,107,0,0.2);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.case-content h3 {
  font-size: 1.25rem;
  margin-bottom: 4px;
}
.case-location {
  font-size: 0.85rem;
  color: var(--text-3);
  margin-bottom: 12px;
}
.case-content p {
  color: var(--text-2);
  font-size: 0.9rem;
  margin-bottom: 12px;
}
.case-specs {
  list-style: none;
  margin-bottom: 16px;
}
.case-specs li {
  font-size: 0.85rem;
  color: var(--text-2);
  margin-bottom: 4px;
}

/* ========== OEM CUSTOMIZE GRID ========== */
.customize-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.customize-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.customize-card h4 {
  font-size: 1.1rem;
  margin-bottom: 14px;
  color: var(--primary);
}
.customize-card ul {
  list-style: none;
}
.customize-card li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9rem;
  color: var(--text-2);
  margin-bottom: 8px;
}
.customize-card li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary);
}

/* ========== SUPPORT CARDS ========== */
.support-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.support-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.support-card h4 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}
.support-card p {
  font-size: 0.9rem;
  color: var(--text-2);
}

/* ========== FAQ ========== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 12px;
}
.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  float: right;
  color: var(--primary);
  font-weight: 400;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item p {
  margin-top: 12px;
  color: var(--text-2);
  font-size: 0.95rem;
}

/* ========== CONTACT PAGE ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}
.contact-info h2 {
  font-size: 1.8rem;
  margin-bottom: 12px;
}
.contact-info > p {
  color: var(--text-2);
  margin-bottom: 32px;
}
.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.contact-method {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-icon {
  font-size: 1.5rem;
  line-height: 1;
}
.contact-method h4 {
  font-size: 1rem;
  margin-bottom: 6px;
}
.contact-method p {
  font-size: 0.9rem;
  color: var(--text-2);
}
.contact-method a {
  color: var(--primary);
}

/* ========== NEWS PAGE ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.news-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}
.news-card.featured {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.news-thumb {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
  position: relative;
  overflow: hidden;
}
.news-thumb > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* A post with no artwork used to render a full 16/10 gradient panel, which
   reads as a large empty box. Collapse it to a slim band instead. */
.news-thumb.no-image {
  aspect-ratio: auto;
  height: 104px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.news-thumb-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}
/* Only the side-by-side featured layout wants the thumb to fill its column.
   In a stacked card, min-height:100% resolves against the stretched card
   height, so the thumb grows over the text and overflow:hidden clips it —
   leaving what looks like an empty box. */
@media (min-width: 961px) {
  .news-card.featured .news-thumb {
    min-height: 100%;
  }
  /* Featured is a two-column layout, so the thumb is its own column and
     should fill it even without artwork. */
  .news-card.featured .news-thumb.no-image {
    height: auto;
  }
}
.news-content {
  padding: 28px;
}
.news-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255,107,0,0.1);
  border: 1px solid rgba(255,107,0,0.2);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.news-content h2, .news-content h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}
.news-content h2 a:hover, .news-content h3 a:hover {
  color: var(--primary);
}
.news-meta {
  font-size: 0.8rem;
  color: var(--text-3);
  margin-bottom: 10px;
}
.news-content p {
  font-size: 0.9rem;
  color: var(--text-2);
  margin-bottom: 16px;
}
.newsletter-inline {
  display: flex;
  gap: 12px;
  justify-content: center;
  max-width: 520px;
  margin: 0 auto;
}
.newsletter-inline input {
  flex: 1;
  padding: 14px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

/* ========== ABOUT PAGE INTRO ========== */
.about-intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.about-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.about-block h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--primary);
}
.about-block p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.6;
}

/* ========== TOP CONTACT BAR (SITE-WIDE) ========== */
.topbar {
  background: linear-gradient(90deg, #1a0e3d 0%, #2a1054 50%, #1a0e3d 100%);
  color: #fff;
  font-size: 0.85rem;
  padding: 9px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.topbar-inner {
  display: grid; grid-template-columns: repeat(3, 1fr);
  max-width: var(--container); margin: 0 auto; padding: 0 24px;
  gap: 16px; align-items: center; text-align: center;
}
.topbar-item { font-weight: 500; }
.topbar-item strong { color: #ff8c40; margin-right: 6px; font-weight: 600; letter-spacing: 0.3px; }
.topbar-item a { color: #fff; text-decoration: none; }
.topbar-item a:hover { color: var(--primary); }
.topbar-item span { font-variant-numeric: tabular-nums; }

/* ========== PRODUCTS PAGE — STICKY SIDEBAR ========== */
.products-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 36px;
  align-items: start;
}
.cat-sidebar {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 116px);
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 6px 18px 16px;
}
.cat-sidebar h3 {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--text-3); margin: 4px 6px 14px; font-weight: 700;
}
.cat-list { list-style: none; }
.cat-list > li { margin-bottom: 2px; }
.cat-a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 10px; border-radius: 6px;
  color: var(--text-2); font-size: 0.9rem; font-weight: 500;
  transition: var(--transition); cursor: pointer;
  background: none; border: none; text-align: left; width: 100%;
  font-family: inherit;
}
.cat-a:hover { background: rgba(255, 107, 0, 0.08); color: var(--text); }
.cat-a.active { background: var(--primary); color: #fff; }
.cat-a .ct { font-size: 0.7rem; opacity: 0.7; }
.cat-toggle {
  background: none; border: none; color: var(--text-3); cursor: pointer;
  font-size: 0.7rem; padding: 0 4px; transition: transform 0.2s;
}
.cat-list > li.open .cat-toggle { transform: rotate(90deg); color: var(--primary); }
.cat-list > li.open > .cat-a { color: var(--text); }
.sub-list { list-style: none; padding: 4px 0 8px 16px; display: none; }
.cat-list > li.open .sub-list { display: block; }
.sub-a {
  display: block; padding: 6px 10px; border-radius: 4px;
  color: var(--text-2); font-size: 0.84rem; cursor: pointer;
  background: none; border: none; text-align: left; width: 100%;
  font-family: inherit;
}
.sub-a:hover { color: var(--primary); }
.sub-a.active { color: var(--primary); font-weight: 600; background: rgba(255, 107, 0, 0.06); }

.products-main { min-width: 0; }
.main-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 18px; padding: 14px 18px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.main-toolbar .count { color: var(--text-2); font-size: 0.9rem; }
.main-toolbar .count b { color: var(--primary); font-weight: 700; }
.main-toolbar .sort { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; color: var(--text-2); }
.main-toolbar select {
  background: var(--bg-2); border: 1px solid var(--border);
  color: var(--text); padding: 7px 12px; border-radius: 6px;
  font-family: inherit; font-size: 0.88rem; cursor: pointer;
}
.sub-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; min-height: 1px; }
.sub-chips .chip {
  padding: 6px 14px; font-size: 0.82rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 100px; color: var(--text-2); cursor: pointer;
  font-family: inherit;
}
.sub-chips .chip:hover, .sub-chips .chip.active {
  background: var(--primary); border-color: var(--primary); color: #fff;
}
.sub-chips:empty { display: none; }

/* ========== RESPONSIVE ADDITIONS ========== */
@media (max-width: 1100px) {
  .solutions-grid, .projects-grid, .why-grid { grid-template-columns: repeat(2, 1fr); }
  .oem-process { grid-template-columns: repeat(3, 1fr); }
  .solution-pillars { grid-template-columns: repeat(2, 1fr); }
  .resources-grid { grid-template-columns: repeat(2, 1fr); }
  .about-intro-grid { grid-template-columns: repeat(2, 1fr); }
  .deliver-grid { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: repeat(3, 1fr); }
  .sol-trust { grid-template-columns: repeat(3, 1fr); }
  .sol-process { grid-template-columns: repeat(3, 1fr); gap: 28px; }
  .proc-step::after { display: none; }
  .case-kpis { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 960px) {
  /* 移动端是点击展开，不需要 hover 撑高与桥接区 */
  .nav-dropdown {
    padding: 0;
    margin: 0;
  }
  .nav-dropdown::after { display: none; }
  .nav-dropdown .dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    box-shadow: none;
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 4px 0 4px 16px;
    margin: 4px 0 4px 4px;
    display: none;
    min-width: auto;
    max-width: none;
    transition: none;
  }
  .nav-dropdown .dropdown-inner {
    background: transparent;
    border: none;
    border-left: 2px solid var(--primary);
    border-radius: 0;
    box-shadow: none;
    padding: 0;
  }
  .nav-dropdown.open .dropdown-menu,
  .nav-dropdown.is-open .dropdown-menu { display: block; }
  .nav-dropdown.open > a,
  .nav-dropdown.is-open > a { color: var(--text); }
  .nav-dropdown .dropdown-inner a {
    padding: 8px 0 8px 12px;
    border-bottom: none;
    font-size: 0.95rem;
  }
  .sol-block-head { grid-template-columns: 1fr; }
  .sol-columns { grid-template-columns: 1fr; }
  .sol-col + .sol-col { border-left: none; border-top: 1px solid var(--border); }
  .sol-intro, .sol-col, .sol-config, .sol-specs, .sol-cta-row, .case-quote { padding-left: 24px; padding-right: 24px; }
  .sol-intro h2 { font-size: 1.5rem; }
  .sol-gallery { padding: 16px; }
  .deliver-grid { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-trust { grid-template-columns: repeat(2, 1fr); }
  .sol-process { grid-template-columns: 1fr; gap: 20px; }
  .proc-step { padding-top: 0; padding-left: 42px; }
  .proc-step::before { top: 2px; }
  .cfg-table { font-size: 0.84rem; }
  .cfg-table th, .cfg-table td { padding: 9px 8px; }
  .solution-detail-card,
  .news-card.featured,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .solution-detail-content {
    padding: 24px;
  }
  .case-grid { grid-template-columns: 1fr; }
  .customize-grid { grid-template-columns: repeat(2, 1fr); }
  .support-cards { grid-template-columns: 1fr; }
  /* 窄屏产品页：侧边栏改为顶部，contact 条堆叠 */
  .products-layout { grid-template-columns: 1fr; gap: 24px; }
  .cat-sidebar { position: static; max-height: none; }
  .topbar-inner { grid-template-columns: 1fr; text-align: center; gap: 4px; }
  .topbar { font-size: 0.78rem; padding: 6px 0; }
}

@media (max-width: 600px) {
  /* 窄屏隐藏装饰性图标，避免 header-right 溢出产生横向滚动 */
  .header-right .header-icon { display: none; }
  /* 4 列统计数字在窄屏会撑破栅格，改为 2 列并缩小字号 */
  .project-stats { grid-template-columns: repeat(2, 1fr); gap: 18px 12px; padding: 22px 16px; }
  .project-stats .stat-num { font-size: 1.55rem; }
  .solutions-grid, .projects-grid, .why-grid,
  .oem-process, .solution-pillars, .resources-grid,
  .about-intro-grid, .customize-grid, .news-grid {
    grid-template-columns: 1fr;
  }
  .news-card.featured { grid-column: span 1; }
  .control-bar { flex-direction: column; align-items: stretch; }
  .control-item { text-align: center; }
  .cta-buttons { flex-direction: column; }
  .newsletter-inline { flex-direction: column; }
}