/* ======================================
   VERTEX 策略顧問 — Design System
   Inspired by YCP Group / McKinsey style
   ====================================== */

/* --- CSS Variables --- */
:root {
  /* Primary Colors - Deep Navy & Gold */
  --navy-900: #060d1a;
  --navy-800: #0a1628;
  --navy-700: #0f2038;
  --navy-600: #152d4a;
  --navy-500: #1a3a5c;
  --navy-400: #2d5a87;
  --navy-300: #4a7fb5;
  --navy-200: #7ba4cc;
  --navy-100: #b0cce6;
  --navy-50: #e0edf7;

  /* Accent - Gold */
  --gold-500: #c9953c;
  --gold-400: #d4a94f;
  --gold-300: #e0be6a;
  --gold-200: #ebd498;
  --gold-100: #f5eac8;

  /* Neutrals */
  --white: #ffffff;
  --gray-50: #f8f9fb;
  --gray-100: #f0f2f5;
  --gray-200: #e2e5ea;
  --gray-300: #c8cdd5;
  --gray-400: #9aa1ad;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Functional */
  --success: #10b981;
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-600);
  --text-muted: var(--gray-400);
  --text-on-dark: var(--gray-100);
  --text-on-dark-muted: var(--gray-300);
  --bg-primary: var(--white);
  --bg-secondary: var(--gray-50);

  /* Typography */
  --font-sans: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Inter', 'Noto Sans TC', sans-serif;

  /* Spacing */
  --section-padding: 120px;
  --container-max: 1200px;
  --container-padding: 24px;

  /* Effects */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

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

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(6, 13, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 1001;
}

.logo-icon {
  font-size: 24px;
  color: var(--gold-500);
  filter: drop-shadow(0 0 8px rgba(201, 149, 60, 0.4));
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 2px;
}

.logo-accent {
  display: block;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 4px;
  color: var(--gold-400);
  margin-top: -2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  color: var(--text-on-dark-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
  letter-spacing: 0.5px;
}

.nav-link:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.nav-cta {
  background: var(--gold-500);
  color: var(--white);
  padding: 8px 24px;
  margin-left: 8px;
}

.nav-link.nav-cta:hover {
  background: var(--gold-400);
  transform: translateY(-1px);
}

.nav-lang {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
  padding-left: 16px;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.lang-link {
  font-size: 13px !important;
  padding: 4px 8px !important;
  opacity: 0.7;
}

.lang-link:hover {
  opacity: 1;
}

.lang-divider {
  color: rgba(255, 255, 255, 0.2);
  font-size: 12px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

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

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

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

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--navy-900);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(26, 58, 92, 0.6) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(201, 149, 60, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(45, 90, 135, 0.3) 0%, transparent 50%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
}

.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: 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%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 var(--container-padding);
  max-width: 900px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 24px;
  background: rgba(201, 149, 60, 0.12);
  border: 1px solid rgba(201, 149, 60, 0.3);
  border-radius: 50px;
  color: var(--gold-400);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.hero-title {
  font-family: var(--font-display);
  margin-bottom: 28px;
}

.hero-title-line {
  display: block;
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 900;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -2px;
}

.hero-title-line.accent {
  background: linear-gradient(135deg, var(--gold-400) 0%, var(--gold-300) 50%, var(--gold-200) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-on-dark-muted);
  line-height: 1.8;
  margin-bottom: 48px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: none;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--gold-500);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(201, 149, 60, 0.3);
}

.btn-primary:hover {
  background: var(--gold-400);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(201, 149, 60, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
}

/* Hero scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-on-dark-muted);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--gold-500), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 0.3;
    height: 40px;
  }

  50% {
    opacity: 1;
    height: 50px;
  }
}

/* Hero animations */
.animate-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards;
}

.animate-in:nth-child(1) {
  animation-delay: 0.2s;
}

.animate-in:nth-child(2) {
  animation-delay: 0.4s;
}

.animate-in:nth-child(3) {
  animation-delay: 0.6s;
}

.animate-in:nth-child(4) {
  animation-delay: 0.8s;
}

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

/* --- Stats Section --- */
.stats {
  background: var(--navy-800);
  padding: 60px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.stats-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.stat-item {
  text-align: center;
  padding: 20px 48px;
}

.stat-number {
  font-size: 52px;
  font-weight: 800;
  color: var(--gold-400);
  font-family: var(--font-display);
  letter-spacing: -2px;
  line-height: 1;
}

.stat-suffix {
  font-size: 32px;
  font-weight: 700;
  color: var(--gold-500);
}

.stat-label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-on-dark-muted);
  letter-spacing: 1px;
}

.stat-divider {
  width: 1px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold-500);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* --- About Section --- */
.about {
  padding: var(--section-padding) 0;
  background: var(--bg-primary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-lead {
  font-size: 20px;
  font-weight: 500;
  color: var(--navy-600);
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.9;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.value-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  border-radius: var(--radius-md);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-smooth);
}

.value-card:hover {
  transform: translateX(8px);
  border-color: var(--gold-500);
  box-shadow: var(--shadow-md);
}

.value-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-500);
}

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

.value-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--navy-700);
  margin-bottom: 4px;
}

.value-card p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* --- Services Section --- */
.services {
  padding: var(--section-padding) 0;
  background: var(--gray-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  border: 1px solid var(--gray-200);
  transition: all var(--transition-smooth);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-500), var(--navy-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-number {
  font-size: 13px;
  font-weight: 800;
  color: var(--gold-500);
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--navy-50), var(--gold-100));
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  color: var(--navy-600);
  transition: all var(--transition-smooth);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--navy-700), var(--navy-600));
  color: var(--gold-400);
}

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

.service-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-700);
  margin-bottom: 12px;
}

.service-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-list li {
  font-size: 13px;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
}

.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-500);
}

/* --- Industries Section --- */
.industries {
  padding: var(--section-padding) 0;
  background: var(--navy-900);
  color: var(--white);
}

.industries .section-title {
  color: var(--white);
}

.industries .section-desc {
  color: var(--text-on-dark-muted);
}

.industry-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 60px;
  padding: 48px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
}

.industry-main h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.3;
}

.industry-main p {
  font-size: 15px;
  color: var(--text-on-dark-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}

/* Channel Grid — Modern Visual */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 400px;
  margin: 0 auto;
}

.channel-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 20px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  transition: all var(--transition-smooth);
  cursor: default;
}

.channel-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--gold-500);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(201, 149, 60, 0.15);
}

.channel-card-hero {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-400));
  border-color: transparent;
  padding: 28px;
}

.channel-card-hero:hover {
  background: linear-gradient(135deg, var(--gold-400), var(--gold-300));
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(201, 149, 60, 0.3);
}

.channel-card-inner {
  text-align: center;
}

.channel-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.5px;
}

.channel-sublabel {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 4px;
}

.channel-card-icon {
  font-size: 28px;
  line-height: 1;
}

/* Industry Categories */
.industry-categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.industry-cat {
  padding: 32px 28px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition: all var(--transition-smooth);
}

.industry-cat:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--gold-500);
  transform: translateY(-4px);
}

.industry-cat h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--gold-400);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.industry-cat li {
  font-size: 14px;
  color: var(--text-on-dark-muted);
  padding: 6px 0;
  padding-left: 16px;
  position: relative;
}

.industry-cat li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--gold-500);
  font-weight: 700;
}

/* --- Results Section --- */
.results {
  padding: var(--section-padding) 0;
  background: var(--bg-primary);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 80px;
}

.result-card {
  text-align: center;
  padding: 48px 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--navy-800), var(--navy-700));
  color: var(--white);
  transition: all var(--transition-smooth);
}

.result-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.result-metric {
  margin-bottom: 16px;
}

.result-number {
  font-size: 56px;
  font-weight: 900;
  color: var(--gold-400);
  font-family: var(--font-display);
  letter-spacing: -2px;
}

.result-suffix {
  font-size: 32px;
  font-weight: 700;
  color: var(--gold-500);
}

.result-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.result-card p {
  font-size: 14px;
  color: var(--text-on-dark-muted);
  line-height: 1.7;
}

/* Testimonials */
.testimonials {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.testimonial-slider {
  position: relative;
  min-height: 200px;
}

.testimonial-card {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-smooth);
  padding: 40px;
}

.testimonial-card.active {
  opacity: 1;
  transform: translateY(0);
  position: relative;
}

.testimonial-quote {
  color: var(--gold-500);
  margin-bottom: 20px;
}

.testimonial-quote svg {
  width: 40px;
  height: 40px;
  opacity: 0.5;
}

.testimonial-text {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.9;
  font-style: italic;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.author-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-700);
}

.author-company {
  font-size: 13px;
  color: var(--text-muted);
}

.testimonial-dots {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 24px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--gray-300);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
}

.dot.active {
  background: var(--gold-500);
  border-color: var(--gold-500);
  transform: scale(1.2);
}

.dot:hover {
  border-color: var(--gold-400);
}

/* --- Insights Section --- */
.insights {
  padding: var(--section-padding) 0;
  background: var(--gray-50);
}

.insights-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.insight-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-smooth);
}

.insight-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.insight-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.insight-image {
  height: 220px;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

.insight-featured .insight-image {
  height: auto;
  min-height: 280px;
}

.insight-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 1px;
}

.insight-content {
  padding: 32px;
}

.insight-date {
  font-size: 12px;
  font-weight: 600;
  color: var(--gold-500);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.insight-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-700);
  margin: 12px 0;
  line-height: 1.5;
}

.insight-featured h3 {
  font-size: 22px;
}

.insight-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.insight-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--gold-500);
  transition: all var(--transition-fast);
}

.insight-link:hover {
  color: var(--gold-400);
  letter-spacing: 1px;
}

/* --- Contact Section --- */
.contact {
  padding: var(--section-padding) 0;
  background: var(--bg-primary);
}

.contact .section-title {
  color: var(--text-primary);
}

.contact-form-centered {
  max-width: 680px;
  margin: 0 auto;
}

/* Form */
.contact-form-wrapper {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy-700);
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold-500);
  box-shadow: 0 0 0 3px rgba(201, 149, 60, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-400);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%236b7280'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

/* --- Footer --- */
.footer {
  background: var(--navy-900);
  padding: 80px 0 40px;
  color: var(--text-on-dark-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand p {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-on-dark-muted);
}

.footer-links h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-on-dark-muted);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--gold-400);
  padding-left: 4px;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-on-dark-muted);
  transition: all var(--transition-fast);
}

.social-icon svg {
  width: 18px;
  height: 18px;
}

.social-icon:hover {
  background: var(--gold-500);
  color: var(--navy-900);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
  font-size: 13px;
  color: var(--gray-500);
}

/* --- Scroll Animations --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
  }

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

  .industry-main {
    grid-template-columns: 1fr;
    padding: 32px;
  }

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

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

  .insight-featured {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  :root {
    --section-padding: 64px;
    --container-padding: 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--navy-900);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
    transition: right var(--transition-smooth);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    font-size: 18px;
    padding: 12px 24px;
  }

  .nav-link.nav-cta {
    margin-left: 0;
    margin-top: 16px;
  }

  .nav-lang {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 16px;
    margin-top: 8px;
    justify-content: center;
  }

  .lang-link {
    font-size: 16px !important;
    padding: 8px 16px !important;
  }

  .hero-subtitle br {
    display: none;
  }

  .stats-grid {
    flex-wrap: wrap;
    gap: 8px;
  }

  .stat-item {
    padding: 16px 24px;
    flex: 1 1 40%;
  }

  .stat-divider {
    display: none;
  }

  .stat-number {
    font-size: 40px;
  }

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

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

  .results-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .result-card {
    padding: 32px 24px;
  }

  .industry-categories {
    grid-template-columns: 1fr;
  }

  .contact-form-wrapper {
    padding: 28px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .channel-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 320px;
  }

  .channel-card-hero {
    grid-column: 1 / -1;
  }
}

@media (max-width: 480px) {
  .hero-title-line {
    letter-spacing: -1px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    padding: 14px 28px;
    text-align: center;
  }

  .stat-item {
    flex: 1 1 100%;
  }
}

/* --- Particle Dot Style --- */
.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--gold-500);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  0% {
    opacity: 0;
    transform: translateY(0);
  }

  10% {
    opacity: 0.6;
  }

  90% {
    opacity: 0.6;
  }

  100% {
    opacity: 0;
    transform: translateY(-100vh);
  }
}