/* ============================================
   QY Translations | Design System v2
   齐越翻译 - 商务简约高端 (Optimized)
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* Brand Colors */
  --navy-900: #081C33;
  --navy-800: #0B2545;
  --navy-700: #13315C;
  --navy-600: #1A4170;
  --navy-500: #2B5B8C;
  --navy-400: #4A7BA8;
  --navy-50: #EEF2F7;

  --gold-600: #A6852E;
  --gold-500: #BFA15E;
  --gold-400: #D4BC7E;
  --gold-300: #E5D4A0;

  /* Neutrals */
  --white: #FFFFFF;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Semantic */
  --bg-primary: var(--white);
  --bg-alt: var(--navy-50);
  --bg-dark: var(--navy-800);
  --text-heading: var(--navy-800);
  --text-body: var(--gray-700);
  --text-secondary: var(--gray-500);
  --text-light: var(--gray-400);
  --text-inverse: var(--white);
  --accent: var(--gold-500);
  --accent-dark: var(--gold-600);
  --border: var(--gray-200);
  --border-light: rgba(0,0,0,.06);

  /* Typography — 1.25 modular scale */
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --font-en: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  --text-display: clamp(2.2rem, 5vw, 3.6rem);
  --text-h1: clamp(1.8rem, 3.5vw, 2.8rem);
  --text-h2: clamp(1.5rem, 2.5vw, 2rem);
  --text-h3: clamp(1.2rem, 1.8vw, 1.5rem);
  --text-h4: 1.125rem;
  --text-body: 1rem;
  --text-sm: 0.875rem;
  --text-xs: 0.75rem;
  --text-caption: 0.8125rem;

  /* Spacing — intentional rhythm */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 3.5rem;
  --space-2xl: 5rem;
  --space-3xl: 7rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 760px;
  --header-h: 68px;
  --radius-xs: 3px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --shadow-xs: 0 1px 2px rgba(11,37,69,.04);
  --shadow-sm: 0 2px 8px rgba(11,37,69,.06);
  --shadow-md: 0 6px 20px rgba(11,37,69,.08);
  --shadow-lg: 0 16px 48px rgba(11,37,69,.10);
  --shadow-navy: 0 12px 40px rgba(11,37,69,.22);
  --shadow-gold: 0 8px 28px rgba(191,161,94,.30);
  --transition: .4s cubic-bezier(.22,.61,.36,1);
  --transition-fast: .2s ease-out;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-kerning: normal;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
}
.container--narrow { max-width: var(--container-narrow); }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-heading);
  letter-spacing: -.01em;
}

h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
h4 { font-size: var(--text-h4); font-weight: 600; }

p { color: var(--text-secondary); line-height: 1.75; }
p.lead { font-size: 1.1rem; color: var(--text-body); }

strong { font-weight: 600; color: var(--text-heading); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-en);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold-500);
}

.text-en { font-family: var(--font-en); }
.text-gold { color: var(--gold-500); }
.text-navy { color: var(--navy-800); }
.text-center { text-align: center; }

/* --- Section --- */
.section { padding: var(--space-3xl) 0; }
.section--alt { background: var(--bg-alt); }
.section--dark { background: var(--navy-800); color: var(--text-inverse); }
.section--dark h2, .section--dark h3, .section--dark h4 { color: var(--white); }
.section--dark p { color: rgba(255,255,255,.65); }

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-2xl);
}
.section-header .eyebrow { margin-bottom: var(--space-sm); }
.section-header h2 { margin-bottom: var(--space-sm); letter-spacing: -.02em; }
.section-header p { font-size: 1.05rem; color: var(--text-secondary); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 26px;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: .01em;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--navy-800);
  color: var(--white);
}
.btn--primary:hover {
  background: var(--navy-700);
  box-shadow: var(--shadow-navy);
  transform: translateY(-2px);
}

.btn--gold {
  background: var(--gold-500);
  color: var(--white);
}
.btn--gold:hover {
  background: var(--gold-600);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}

.btn--outline {
  border: 1.5px solid var(--navy-800);
  color: var(--navy-800);
}
.btn--outline:hover {
  background: var(--navy-800);
  color: var(--white);
}

.btn--outline-light {
  border: 1.5px solid rgba(255,255,255,.4);
  color: var(--white);
}
.btn--outline-light:hover {
  border-color: var(--white);
  background: rgba(255,255,255,.1);
}

.btn--lg { padding: 14px 32px; font-size: var(--text-body); }

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-brand img { height: 36px; width: auto; }
.nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.nav-brand-text .cn {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy-800);
  letter-spacing: .02em;
}
.nav-brand-text .en {
  font-family: var(--font-en);
  font-size: .625rem;
  letter-spacing: .14em;
  color: var(--gold-500);
  text-transform: uppercase;
  font-weight: 500;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-menu a {
  display: block;
  padding: 7px 14px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-600);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
}
.nav-menu a:hover { color: var(--navy-800); }
.nav-menu a.active { color: var(--navy-800); font-weight: 600; }
.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 14px; right: 14px;
  height: 2px;
  background: var(--gold-500);
  border-radius: 1px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-cta { padding: 7px 18px; font-size: var(--text-sm); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--navy-800);
  border-radius: 1px;
  transition: all var(--transition);
}
.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 --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-h);
  background: var(--navy-900);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: .35;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 25% 50%, rgba(191,161,94,.12), transparent 55%),
    radial-gradient(ellipse at 80% 30%, rgba(43,91,140,.25), transparent 50%),
    linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 100%);
  z-index: 1;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 64px 64px;
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero .eyebrow {
  font-size: var(--text-sm);
  letter-spacing: .2em;
  color: var(--gold-400);
  margin-bottom: var(--space-md);
}
.hero h1 {
  color: var(--white);
  font-size: var(--text-display);
  line-height: 1.18;
  margin-bottom: var(--space-md);
  font-weight: 700;
}
.hero h1 .accent { color: var(--gold-400); }
.hero .subtitle {
  font-size: 1.12rem;
  line-height: 1.7;
  color: rgba(255,255,255,.72);
  margin-bottom: var(--space-xl);
  max-width: 560px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,.08);
}
.hero-stat .num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--gold-400);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.hero-stat .num .unit {
  font-family: var(--font-sans);
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255,255,255,.5);
  margin-left: 4px;
  vertical-align: middle;
}
.hero-stat .label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.5);
  margin-top: 6px;
}

/* --- Page Hero (inner pages) --- */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + var(--space-2xl)) 0 var(--space-xl);
  background: var(--navy-900);
  color: var(--white);
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 50%, rgba(191,161,94,.10), transparent 55%),
    linear-gradient(135deg, var(--navy-900), var(--navy-700));
  z-index: 1;
}
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size: 64px 64px;
  z-index: 1;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero .eyebrow {
  font-size: var(--text-sm);
  letter-spacing: .18em;
  color: var(--gold-400);
  margin-bottom: var(--space-sm);
}
.page-hero h1 {
  color: var(--white);
  margin-bottom: var(--space-sm);
  font-size: var(--text-h1);
}
.page-hero p {
  color: rgba(255,255,255,.65);
  font-size: 1.08rem;
  max-width: 600px;
}

/* --- Cards --- */
.card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: var(--space-lg);
  transition: all var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-3px);
}

/* --- Image Card --- */
.image-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.image-card:hover img { transform: scale(1.04); }

/* --- Service Card --- */
.service-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: var(--space-xl) var(--space-lg);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-500), var(--gold-300));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-5px);
}
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--navy-800);
  color: var(--gold-400);
  margin-bottom: var(--space-md);
  font-size: 1.4rem;
}
.service-card h3 {
  margin-bottom: var(--space-2xs);
  font-size: 1.25rem;
}
.service-card .desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.65;
}
.service-card ul {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.service-card ul li {
  font-size: var(--text-sm);
  color: var(--gray-600);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}
.service-card ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--gold-500);
}
.service-card ul li strong { font-weight: 600; color: var(--navy-700); }

/* --- Industry Grid --- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}
.industry-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  transition: all var(--transition);
}
.industry-item:hover {
  background: var(--navy-800);
  border-color: var(--navy-800);
  transform: translateY(-4px);
  box-shadow: var(--shadow-navy);
}
.industry-item:hover .industry-icon,
.industry-item:hover h4,
.industry-item:hover p { color: var(--white); }
.industry-item:hover .industry-icon { color: var(--gold-400); }

.industry-icon {
  font-size: 1.8rem;
  color: var(--navy-800);
  margin-bottom: var(--space-sm);
  transition: color var(--transition);
}
.industry-item h4 {
  font-size: var(--text-body);
  margin-bottom: 4px;
  transition: color var(--transition);
  font-weight: 600;
}
.industry-item p {
  font-size: var(--text-xs);
  color: var(--text-light);
  transition: color var(--transition);
  line-height: 1.5;
}

/* --- Stats Section --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
.stat-block {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
}
.stat-block .num {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--gold-400);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat-block .num .unit {
  font-size: 1.1rem;
  color: var(--gold-500);
  font-weight: 600;
}
.stat-block .label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.6);
  margin-top: var(--space-2xs);
}

/* --- Case Card --- */
.case-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.case-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-5px);
}
.case-card-header {
  background: var(--navy-800);
  padding: var(--space-lg);
  color: var(--white);
}
.case-card-header .tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gold-400);
  margin-bottom: var(--space-2xs);
}
.case-card-header h3 {
  color: var(--white);
  font-size: 1.15rem;
  line-height: 1.4;
}
.case-card-body { padding: var(--space-lg); }
.case-card-body .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}
.case-card-body .meta-item { font-size: var(--text-sm); }
.case-card-body .meta-item .key { color: var(--text-light); margin-right: 4px; }
.case-card-body .meta-item .val { color: var(--navy-700); font-weight: 500; }
.case-card-body .highlights {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.case-card-body .highlights li {
  font-size: var(--text-sm);
  color: var(--gray-600);
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}
.case-card-body .highlights li::before {
  content: '✓';
  position: absolute;
  left: 0; top: 0;
  color: var(--gold-500);
  font-weight: 700;
}

/* --- Feature Row --- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}
.feature-row--reverse .feature-content { order: 2; }
.feature-row--reverse .feature-visual { order: 1; }

.feature-content h2 { margin-bottom: var(--space-md); }
.feature-content .lead {
  font-size: 1.1rem;
  color: var(--text-body);
  margin-bottom: var(--space-md);
}
.feature-content p { margin-bottom: var(--space-md); }
.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.feature-list-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}
.feature-list-item .icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(11,37,69,.05);
  color: var(--navy-800);
  font-size: 1.2rem;
}
.feature-list-item h4 {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy-800);
  margin-bottom: 3px;
}
.feature-list-item p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* --- CTA Section --- */
.cta-section {
  background: var(--navy-800);
  padding: var(--space-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(191,161,94,.10), transparent 50%),
    radial-gradient(ellipse at 70% 50%, rgba(43,91,140,.15), transparent 50%);
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 {
  color: var(--white);
  margin-bottom: var(--space-sm);
}
.cta-section p {
  color: rgba(255,255,255,.65);
  font-size: 1.08rem;
  margin-bottom: var(--space-lg);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}
.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-xl);
  align-items: start;
}
.contact-info-card {
  background: var(--navy-800);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  color: var(--white);
}
.contact-info-card h3 {
  color: var(--white);
  margin-bottom: var(--space-md);
}
.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.contact-info-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}
.contact-info-item .icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(191,161,94,.12);
  color: var(--gold-400);
  font-size: 1.1rem;
}
.contact-info-item .label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.45);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 2px;
  font-weight: 500;
}
.contact-info-item .value {
  font-size: var(--text-body);
  color: var(--white);
  font-weight: 500;
}

.contact-form {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.form-group { margin-bottom: var(--space-md); }
.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 5px;
}
.form-group label .required { color: #d14343; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  font-size: var(--text-sm);
  font-family: inherit;
  color: var(--gray-900);
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy-500);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(11,37,69,.08);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* --- Blog --- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.blog-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-5px);
}
.blog-card-img {
  height: 190px;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.blog-card-img--placeholder {
  background: var(--navy-700);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--gold-400);
}
.blog-card-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11,37,69,.4));
}
.blog-card-body {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.blog-card .meta {
  display: flex;
  gap: 10px;
  font-size: var(--text-xs);
  color: var(--text-light);
  margin-bottom: var(--space-2xs);
}
.blog-card .meta .category {
  color: var(--gold-600);
  font-weight: 600;
}
.blog-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-2xs);
  line-height: 1.4;
  font-weight: 600;
}
.blog-card h3 a:hover { color: var(--navy-600); }
.blog-card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  flex: 1;
  line-height: 1.65;
}
.blog-card .read-more {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--navy-700);
}
.blog-card .read-more:hover { color: var(--gold-600); }

/* Blog article */
.blog-article { max-width: var(--container-narrow); margin: 0 auto; }
.blog-article-header { margin-bottom: var(--space-xl); }
.blog-article-header .meta {
  display: flex;
  gap: 14px;
  font-size: var(--text-sm);
  color: var(--text-light);
  margin-bottom: var(--space-sm);
}
.blog-article-header .meta .category {
  color: var(--gold-600);
  font-weight: 600;
}
.blog-article-header h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.3;
  margin-bottom: var(--space-sm);
}
.blog-article-hero {
  width: 100%;
  height: 360px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xl);
}
.blog-article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-body);
}
.blog-article-body p { margin-bottom: var(--space-md); }
.blog-article-body h2 {
  font-size: 1.35rem;
  margin: var(--space-lg) 0 var(--space-sm);
}
.blog-article-body h3 {
  font-size: 1.15rem;
  margin: var(--space-md) 0 var(--space-sm);
  font-weight: 600;
}
.blog-article-body strong { font-weight: 600; color: var(--navy-800); }
.blog-article-body blockquote {
  border-left: 3px solid var(--gold-500);
  padding: var(--space-sm) var(--space-md);
  margin: var(--space-md) 0;
  background: var(--navy-50);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 1.05rem;
  color: var(--navy-700);
}
.blog-article-body ul, .blog-article-body ol {
  margin: var(--space-sm) 0 var(--space-md) var(--space-md);
}
.blog-article-body ul li, .blog-article-body ol li {
  margin-bottom: 6px;
  list-style: disc;
  color: var(--text-body);
}
.blog-article-body ol li { list-style: decimal; }
.blog-article-author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--navy-50);
  border-radius: var(--radius-md);
  margin-top: var(--space-xl);
}
.blog-article-author .avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--navy-800);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-400);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
}
.blog-article-author .info .name {
  font-weight: 600;
  color: var(--navy-800);
  font-size: var(--text-sm);
}
.blog-article-author .info .bio {
  font-size: var(--text-xs);
  color: var(--text-light);
}

/* --- Certification Badges --- */
.cert-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}
.cert-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--gray-700);
}
.cert-badge .icon { color: var(--gold-500); font-size: 1.1rem; }

/* --- Process Timeline --- */
.process-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
.process-step {
  display: flex;
  gap: var(--space-md);
  padding-bottom: var(--space-lg);
  position: relative;
}
.process-step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 21px;
  top: 44px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.process-step .step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--navy-800);
  color: var(--gold-400);
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  z-index: 2;
}
.process-step .step-content h4 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy-800);
  margin-bottom: 4px;
}
.process-step .step-content p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* --- Footer --- */
.site-footer {
  background: var(--navy-900);
  color: rgba(255,255,255,.55);
  padding: var(--space-2xl) 0 var(--space-md);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.footer-brand .nav-brand-text .cn { color: var(--white); }
.footer-brand p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.45);
  margin-top: var(--space-sm);
  max-width: 280px;
  line-height: 1.6;
}
.footer-col h5 {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: var(--space-md);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-col ul a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.5);
}
.footer-col ul a:hover { color: var(--gold-400); }
.footer-col ul li { font-size: var(--text-sm); color: rgba(255,255,255,.5); line-height: 1.6; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.footer-bottom p {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.35);
}
.footer-bottom .links {
  display: flex;
  gap: var(--space-md);
}
.footer-bottom .links a {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.35);
}
.footer-bottom .links a:hover { color: var(--gold-400); }

/* --- Animations --- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .7s ease-out backwards; }
.fade-up:nth-child(2) { animation-delay: .12s; }
.fade-up:nth-child(3) { animation-delay: .24s; }
.fade-up:nth-child(4) { animation-delay: .36s; }

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease-out, transform .7s ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Breadcrumb --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  color: rgba(255,255,255,.4);
  margin-bottom: var(--space-sm);
}
.breadcrumb a:hover { color: var(--gold-400); }
.breadcrumb .sep { color: rgba(255,255,255,.25); }
.breadcrumb .current { color: rgba(255,255,255,.7); }

/* --- English Page --- */
.en-page { font-family: var(--font-en); }
.en-page h1, .en-page h2, .en-page h3, .en-page h4 {
  font-family: var(--font-en);
}

/* --- Category Filter --- */
.category-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
  justify-content: center;
}
.category-filter .btn {
  padding: 7px 18px;
  font-size: var(--text-sm);
}
.category-filter .btn.active {
  background: var(--navy-800);
  color: var(--white);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .feature-row { grid-template-columns: 1fr; gap: var(--space-lg); }
  .feature-row--reverse .feature-content { order: 0; }
  .feature-row--reverse .feature-visual { order: 0; }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  .section { padding: var(--space-2xl) 0; }
  .container { padding: 0 20px; }

  .nav-menu {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    flex-direction: column;
    background: var(--white);
    padding: var(--space-md);
    gap: 0;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-menu a {
    width: 100%;
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
  }
  .nav-menu a.active::after { display: none; }
  .nav-toggle { display: flex; }
  .nav-actions .nav-cta { display: none; }

  .hero { min-height: auto; padding: calc(var(--header-h) + var(--space-2xl)) 0 var(--space-xl); }
  .hero-stats { flex-wrap: wrap; gap: var(--space-md); }
  .hero-stat .num { font-size: 1.6rem; }

  .industry-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-md); }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .blog-article-hero { height: 240px; }
}

@media (max-width: 480px) {
  .industry-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* --- Selection --- */
::selection { background: rgba(191,161,94,.20); color: var(--navy-800); }
::-moz-selection { background: rgba(191,161,94,.20); color: var(--navy-800); }

/* --- Focus Visible --- */
:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: 2px;
  border-radius: 2px;
}

/* --- Font Rendering Polish --- */
body {
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  text-spacing: trim-start auto-first auto-last trim-end;
}
h1, h2, h3, h4, h5, h6 {
  font-feature-settings: "kern" 1, "liga" 1, "ss01" 1;
}

/* --- Scroll Offset (for fixed header) --- */
[id] { scroll-margin-top: calc(var(--header-h) + 1rem); }

/* --- Blog Card Image Hover Zoom --- */
.blog-card-img {
  transition: transform .5s cubic-bezier(.22,.61,.36,1);
}
.blog-card:hover .blog-card-img {
  transform: scale(1.03);
}

/* --- Case Card Header Gradient --- */
.case-card-header {
  background: linear-gradient(135deg, var(--navy-800), var(--navy-700));
  position: relative;
  overflow: hidden;
}
.case-card-header::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 200px; height: 100%;
  background: radial-gradient(ellipse at right, rgba(191,161,94,.08), transparent 70%);
  pointer-events: none;
}

/* --- Hero Stat Divider --- */
.hero-stat:not(:last-child)::after {
  content: '';
  position: absolute;
  right: calc(var(--space-xl) / -2);
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255,255,255,.08);
}
.hero-stat { position: relative; }

/* --- Section Divider --- */
.section--alt { position: relative; }
.section--alt::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 48px; height: 3px;
  background: linear-gradient(90deg, var(--gold-500), var(--gold-300));
  border-radius: 2px;
}

/* --- Form Placeholder --- */
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-400);
  font-size: var(--text-sm);
}

/* --- Print --- */
@media print {
  .site-header, .nav-toggle, .nav-actions, .cta-section, .site-footer { display: none !important; }
  body { color: #000; background: #fff; }
  .section { padding: 1rem 0; }
  .reveal { opacity: 1 !important; transform: none !important; }
}