/* ============================================
   7Luminaries · 七曜数字科技
   Dark Tech Theme — CSS Stylesheet
   ============================================ */

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

:root {
  --bg-0: #05060a;
  --bg-1: #0a0c14;
  --bg-2: #10131f;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);
  --text-1: #f0f1f5;
  --text-2: #a0a3b0;
  --text-3: #6a6d7a;
  --accent: #c8a96e;
  --accent-2: #e8d5a8;
  --accent-glow: rgba(200, 169, 110, 0.25);
  --blue: #4a9eff;
  --purple: #a78bfa;
  --font-display: 'Playfair Display', 'Noto Sans SC', serif;
  --font-body: 'Space Grotesk', 'Noto Sans SC', sans-serif;
  --font-cn: 'Noto Sans SC', sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--font-body);
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

ul {
  list-style: none;
}

/* ===== Starfield Canvas ===== */
#starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ===== Layout Helpers ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  position: relative;
  z-index: 1;
  padding: 120px 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 64px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  position: relative;
  padding-left: 40px;
}

.eyebrow::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.section-head.center .eyebrow::before {
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-1);
}

.section-desc {
  color: var(--text-2);
  margin-top: 16px;
  font-size: 1.05rem;
  max-width: 560px;
}

.section-head.center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-0);
}

.btn-primary:hover {
  background: var(--accent-2);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border-strong);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-outline {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1rem;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all 0.4s var(--ease);
}

.nav.scrolled {
  background: rgba(10, 12, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  position: relative;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
}

.mark-7 {
  position: absolute;
  left: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.6rem;
  color: var(--text-1);
  letter-spacing: -0.05em;
}

.mark-l {
  position: absolute;
  right: 2px;
  bottom: 4px;
  font-size: 1.4rem;
  color: var(--text-1);
  letter-spacing: -0.05em;
}

.mark-star {
  position: absolute;
  top: 2px;
  right: 4px;
  font-size: 0.7rem;
  color: var(--accent);
  animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.4; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.2); }
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-en {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: 0.02em;
}

.brand-cn {
  font-family: var(--font-cn);
  font-size: 0.7rem;
  color: var(--text-3);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--text-2);
  font-weight: 400;
  position: relative;
  padding: 4px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}

.nav-link:hover {
  color: var(--text-1);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.cta {
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 10px 24px;
  border-radius: 50px;
  transition: all 0.3s var(--ease);
}

.nav-link.cta::after {
  display: none;
}

.nav-link.cta:hover {
  background: var(--accent);
  color: var(--bg-0);
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-1);
  transition: all 0.3s var(--ease);
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 160px 24px 80px;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.hero-grid-bg {
  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: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  position: relative;
  z-index: 2;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px 8px 16px;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--text-2);
  background: var(--surface);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { box-shadow: 0 0 0 8px transparent; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-title .line {
  display: block;
}

.hero-title .accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 50%, var(--accent) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 5s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-2);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 80px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  max-width: 720px;
  margin: 0 auto;
}

.stat {
  text-align: center;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.stat-plus {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--accent);
  margin-left: 2px;
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-3);
  margin-top: 8px;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--text-3);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== About Section ===== */
.about {
  background: linear-gradient(180deg, transparent 0%, var(--bg-1) 50%, transparent 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 80px;
  align-items: center;
}

.about-text p {
  color: var(--text-2);
  margin-bottom: 24px;
  line-height: 1.85;
}

.about-text strong {
  color: var(--accent);
  font-weight: 600;
}

.about-features {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}

.feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: all 0.4s var(--ease);
}

.feature:hover {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  transform: translateX(8px);
}

.feature-icon {
  font-size: 1.4rem;
  color: var(--accent);
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border-radius: 12px;
}

.feature h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-1);
}

.feature p {
  font-size: 0.9rem;
  color: var(--text-3);
  margin: 0;
}

.about-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.orbit-wrap {
  position: relative;
  width: 340px;
  height: 340px;
}

.orbit {
  position: absolute;
  inset: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  animation: rotate 30s linear infinite;
}

.orbit-1 {
  animation-duration: 40s;
}

.orbit-2 {
  inset: 30px;
  animation-duration: 25s;
  animation-direction: reverse;
}

.orbit-3 {
  inset: 60px;
  animation-duration: 18s;
}

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

.planet {
  position: absolute;
  color: var(--accent);
}

.p-sun {
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.4rem;
}

.p-moon {
  top: 50%;
  right: -12px;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--purple);
}

.p-star {
  bottom: 10px;
  left: -8px;
  font-size: 1rem;
  animation: twinkle 2s ease-in-out infinite;
}

.orbit-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px var(--accent-glow);
}

.center-7 {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--bg-0);
  line-height: 1;
}

/* ===== Services Section ===== */
.services {
  background: var(--bg-1);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  position: relative;
  padding: 32px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: all 0.5s var(--ease);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}

.service-card:hover {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  transform: translateY(-8px);
}

.service-card:hover::before {
  opacity: 1;
}

.service-card.featured {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent-glow) 0%, var(--surface) 100%);
  grid-column: span 2;
}

.service-card.featured .featured-ring {
  position: absolute;
  top: 50%;
  right: -40px;
  transform: translateY(-50%);
  width: 200px;
  height: 200px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  opacity: 0.3;
  animation: pulseRing 3s ease-in-out infinite;
}

@keyframes pulseRing {
  0%, 100% { transform: translateY(-50%) scale(1); opacity: 0.3; }
  50% { transform: translateY(-50%) scale(1.1); opacity: 0.6; }
}

.service-icon-wrap {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--bg-2);
  color: var(--accent);
  margin-bottom: 20px;
}

.service-icon-wrap svg {
  width: 28px;
  height: 28px;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-1);
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 16px;
}

.service-tag {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ===== Products Section ===== */
.products {
  background: var(--bg-1);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 28px;
}

.product-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  transition: all 0.5s var(--ease);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

.product-hero {
  position: relative;
  padding: 0;
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(var(--p-color, 200, 169, 110), 0.15) 0%, rgba(var(--p-color-2, 200, 169, 110), 0.05) 100%);
  color: var(--p-color, var(--accent));
  border-bottom: 1px solid var(--border);
}

.product-hero-bg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.p-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.product-card:hover .p-image {
  transform: scale(1.06);
}

.product-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 12, 20, 0.1) 0%,
    rgba(10, 12, 20, 0.35) 100%
  );
  pointer-events: none;
}

.product-hero-bg.dark-bg::after {
  background: linear-gradient(to bottom, rgba(10, 12, 20, 0.35) 0%, rgba(10, 12, 20, 0.6) 100%);
}

.product-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: 50px;
  background: rgba(var(--p-color, 200, 169, 110), 0.15);
  border: 1px solid rgba(var(--p-color, 200, 169, 110), 0.3);
  color: var(--p-color, var(--accent));
  white-space: nowrap;
}

.product-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-header {
  margin-bottom: 12px;
}

.product-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.product-sub {
  font-size: 0.8rem;
  color: var(--text-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-desc {
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 20px;
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
  flex: 1;
}

.product-features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.85rem;
  line-height: 1.5;
}

.pf-dot {
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 6px;
}

.product-features li strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-1);
}

.product-features li em {
  font-style: normal;
  font-size: 0.78rem;
  color: var(--text-3);
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.ptag {
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--bg-2);
  color: var(--text-2);
  letter-spacing: 0.05em;
}

/* Product-specific theming */
.product-card[data-product="meiyuntong"] .product-hero {
  background: linear-gradient(135deg, rgba(139, 105, 20, 0.2) 0%, rgba(212, 160, 23, 0.08) 100%);
  color: #D4A017;
}
.product-card[data-product="meiyuntong"] .product-badge {
  background: rgba(212, 160, 23, 0.15);
  border-color: rgba(212, 160, 23, 0.4);
  color: #D4A017;
}

.product-card[data-product="lexai"] .product-hero {
  background: linear-gradient(135deg, rgba(93, 78, 55, 0.2) 0%, rgba(166, 139, 91, 0.08) 100%);
  color: #A68B5B;
}
.product-card[data-product="lexai"] .product-badge {
  background: rgba(166, 139, 91, 0.15);
  border-color: rgba(166, 139, 91, 0.4);
  color: #A68B5B;
}

.product-card[data-product="changsheng"] .product-hero {
  background: linear-gradient(135deg, rgba(26, 26, 46, 0.4) 0%, rgba(107, 76, 138, 0.2) 100%);
  color: #9b7fc7;
}
.product-card[data-product="changsheng"] .product-badge {
  background: rgba(155, 127, 199, 0.15);
  border-color: rgba(155, 127, 199, 0.4);
  color: #9b7fc7;
}

.product-card[data-product="huajian"] .product-hero {
  background: linear-gradient(135deg, rgba(196, 135, 139, 0.2) 0%, rgba(232, 193, 197, 0.08) 100%);
  color: #E8A4A8;
}
.product-card[data-product="huajian"] .product-badge {
  background: rgba(232, 164, 168, 0.15);
  border-color: rgba(232, 164, 168, 0.4);
  color: #E8A4A8;
}

.product-card[data-product="lingwang"] .product-hero {
  background: linear-gradient(135deg, rgba(74, 111, 165, 0.2) 0%, rgba(123, 163, 212, 0.08) 100%);
  color: #7BA3D4;
}
.product-card[data-product="lingwang"] .product-badge {
  background: rgba(123, 163, 212, 0.15);
  border-color: rgba(123, 163, 212, 0.4);
  color: #7BA3D4;
}

/* ===== Solutions Section ===== */
.solutions-list {
  display: grid;
  gap: 64px;
}

.solution-item {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  transition: all 0.5s var(--ease);
}

.solution-item:hover {
  border-color: var(--border-strong);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

.solution-item.reverse {
  direction: rtl;
}

.solution-item.reverse > * {
  direction: ltr;
}

.solution-visual {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: 0;
  min-height: 340px;
}

.solution-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.solution-item:hover .solution-visual img {
  transform: scale(1.05);
}

.solution-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 12, 20, 0.1) 0%,
    rgba(10, 12, 20, 0.3) 100%
  );
  pointer-events: none;
}

.solution-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(10, 12, 20, 0.75);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-strong);
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--text-1);
  letter-spacing: 0.05em;
}

.solution-badge-icon {
  font-size: 1rem;
}

.solution-body {
  padding: 40px 40px 40px 0;
}

.solution-item.reverse .solution-body {
  padding: 40px 0 40px 40px;
}

.solution-tag {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding: 0;
  border: none;
  border-radius: 0;
  background: none;
}

.solution-tag::after {
  content: ' —';
  color: var(--text-3);
}

.solution-body h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-1);
}

.solution-body > p {
  color: var(--text-2);
  line-height: 1.85;
  margin-bottom: 28px;
  font-size: 0.95rem;
}

.solution-feature-list {
  display: grid;
  gap: 16px;
  margin-bottom: 32px;
}

.solution-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.sf-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: var(--bg-2);
  border-radius: 10px;
}

.solution-feature-list li strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 2px;
}

.solution-feature-list li em {
  font-style: normal;
  font-size: 0.82rem;
  color: var(--text-3);
}

.solution-meta {
  display: flex;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.solution-meta li {
  text-align: left;
  position: relative;
}

.solution-meta strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.solution-meta em {
  font-style: normal;
  font-size: 0.78rem;
  color: var(--text-3);
  margin-top: 4px;
  display: block;
}

/* ===== Team Section ===== */
.team {
  background: var(--bg-1);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  text-align: center;
  padding: 32px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: all 0.5s var(--ease);
}

.team-card:hover {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  transform: translateY(-6px);
}

.avatar {
  position: relative;
  width: 100px;
  height: 100px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, hsl(var(--hue), 40%, 40%), hsl(calc(var(--hue) + 40), 50%, 50%));
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-ring {
  position: absolute;
  inset: -4px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  opacity: 0.4;
  transition: all 0.4s var(--ease);
}

.team-card:hover .avatar-ring {
  opacity: 1;
  transform: scale(1.05);
}

.avatar-initials {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-1);
}

.team-card h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-1);
}

.team-card .role {
  display: block;
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 12px;
}

.team-card p {
  font-size: 0.85rem;
  color: var(--text-3);
  line-height: 1.6;
}

/* ===== Testimonials ===== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial {
  position: relative;
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: all 0.5s var(--ease);
}

.testimonial:hover {
  border-color: var(--border-strong);
}

.testimonial.featured {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent-glow) 0%, var(--surface) 100%);
}

.quote-mark {
  position: absolute;
  top: 16px;
  right: 24px;
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--accent);
  opacity: 0.15;
  line-height: 1;
}

.testimonial p {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial footer {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.testimonial footer strong {
  display: block;
  font-size: 0.95rem;
  color: var(--text-1);
  margin-bottom: 2px;
}

.testimonial footer span {
  font-size: 0.8rem;
  color: var(--text-3);
}

/* ===== CTA Section ===== */
.cta-section {
  padding-top: 80px;
}

.cta-wrap {
  position: relative;
  text-align: center;
  padding: 80px 48px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--bg-2) 0%, var(--bg-1) 100%);
  overflow: hidden;
}

.cta-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-wrap h2 {
  position: relative;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 16px;
  z-index: 1;
}

.cta-wrap p {
  position: relative;
  color: var(--text-2);
  margin-bottom: 40px;
  z-index: 1;
}

.cta-actions {
  position: relative;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  z-index: 1;
}

/* ===== Footer ===== */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  background: var(--bg-0);
  padding: 80px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}

.footer-brand .brand {
  margin-bottom: 20px;
}

.footer-desc {
  color: var(--text-3);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h5 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-1);
}

.footer-col a,
.footer-col p {
  display: block;
  font-size: 0.9rem;
  color: var(--text-3);
  padding: 6px 0;
  transition: color 0.3s var(--ease);
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-address {
  line-height: 1.6;
  margin-top: 8px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-3);
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: var(--text-3);
  font-size: 0.85rem;
}

.footer-links a:hover {
  color: var(--accent);
}

/* ===== Reveal Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .service-card.featured {
    grid-column: span 3;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 12, 20, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    z-index: 999;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-link {
    font-size: 1.4rem;
  }

  .nav-burger {
    display: flex;
    z-index: 1001;
  }

  .nav-burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-burger.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    padding: 140px 24px 60px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .section {
    padding: 80px 0;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .orbit-wrap {
    width: 280px;
    height: 280px;
    margin: 0 auto;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-card.featured {
    grid-column: span 2;
  }

  .solution-item {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .solution-item.reverse {
    direction: ltr;
  }

  .solution-visual {
    max-width: 100%;
    min-height: 220px;
    border-radius: 0;
  }

  .solution-body {
    padding: 32px;
  }

  .solution-item.reverse .solution-body {
    padding: 32px;
  }

  .solution-meta {
    gap: 20px;
  }

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

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-card.featured {
    grid-column: span 1;
  }

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

  .product-hero {
    min-height: 200px;
    padding: 0;
  }

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

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .cta-wrap {
    padding: 48px 24px;
  }
}