:root {
  --navy: #0A1628;
  --navy-light: #13253F;
  --navy-mid: #1E3A5F;
  --steel: #2C4A7C;
  --slate: #4A6A8A;
  --accent: #E87A2A;
  --accent-hover: #D06A1A;
  --gold: #C9A84C;
  --gold-light: #E2C872;
  --surface: #F0F2F5;
  --surface-alt: #E4E7ED;
  --white: #FFFFFF;
  --text: #1A1A2E;
  --text-dim: #5A6A7A;
  --text-light: #A0AAB5;
  --border: #D0D5DD;
  --shadow: 0 4px 24px rgba(10,22,40,0.08);
  --shadow-lg: 0 12px 48px rgba(10,22,40,0.12);
  --container: 1200px;
  --header-h: 72px;
  --radius: 8px;
  --radius-lg: 16px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

/* ========== HEADER ========== */
.header {
  position: fixed; top: 0; left: 0; right: 0;
  width: 100%;
  max-width: 100vw;
  height: var(--header-h);
  background: rgba(10,22,40,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
  transition: background 0.3s, box-shadow 0.3s;
}
.header.scrolled { background: rgba(10,22,40,0.98); box-shadow: 0 2px 20px rgba(0,0,0,0.3); }
.header-inner {
  position: relative;
  display: flex; align-items: center; justify-content: flex-start;
  height: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 800; color: var(--white);
  letter-spacing: -0.5px;
}
.logo-icon {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
}
.logo-icon svg { width: 36px; height: 36px; }
.logo-svg { display: block; }
.logo-sub { font-size: 10px; font-weight: 400; color: var(--text-light); letter-spacing: 1px; display: block; margin-top: -2px; }

.nav { display: flex; align-items: center; gap: 2px; position: absolute; left: 50%; transform: translateX(-50%); }
.header-right { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.nav a {
  padding: 8px 12px; font-size: 14px; font-weight: 500;
  color: rgba(255,255,255,0.75); border-radius: 6px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.nav a:hover { color: var(--white); background: rgba(255,255,255,0.08); }
.nav a.active { color: var(--gold); background: rgba(201,168,76,0.12); }
.nav .nav-cta {
  background: var(--accent); color: var(--white) !important; padding: 8px 18px;
  margin-left: 6px; border-radius: 6px; font-weight: 600;
}
.nav .nav-cta:hover { background: var(--accent-hover); }

.lang-switch {
  display: inline-flex; align-items: center; gap: 4px; margin-left: 4px;
  padding: 6px 10px; font-size: 13px; font-weight: 600;
  color: var(--gold); border: 1px solid rgba(201,168,76,0.3); border-radius: 6px;
  transition: background 0.2s;
}
.lang-switch:hover { background: rgba(201,168,76,0.1); }

.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; position: absolute; right: 16px; top: 50%; transform: translateY(-50%); z-index: 10; }
.menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.menu-toggle span {
  display: block; width: 24px; height: 2px; background: var(--white);
  border-radius: 2px; transition: 0.3s;
}
.menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ========== HERO ========== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  background: var(--navy);
  overflow: hidden; padding-top: var(--header-h);
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(232,122,42,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(201,168,76,0.06) 0%, transparent 50%),
    linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 50%, var(--navy) 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;
}
.hero-carousel {
  position: absolute; inset: 0; overflow: hidden;
}
.hero-carousel .slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity 1.2s ease;
}
.hero-carousel .slide.active { opacity: 1; }
.hero-carousel .slide img {
  width: 100%; height: 100%; object-fit: cover;
  filter: brightness(0.3) saturate(0.7);
}
.hero-overlay {
  position: relative; z-index: 2;
  width: 100%; padding: 80px 0;
}
.hero-content { max-width: 720px; }
.hero-tag {
  display: inline-block; padding: 6px 16px;
  border: 1px solid rgba(232,122,42,0.4);
  border-radius: 20px; font-size: 12px; font-weight: 600;
  color: var(--accent); letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 72px); font-weight: 800;
  color: var(--white); line-height: 1.1; letter-spacing: -1.5px;
  margin-bottom: 20px;
}
.hero h1 .highlight { color: var(--accent); }
.hero h1 .highlight-gold { color: var(--gold); }
.hero p {
  font-size: clamp(16px, 2vw, 20px); color: rgba(255,255,255,0.65);
  line-height: 1.7; margin-bottom: 32px; max-width: 580px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 40px; margin-top: 48px; padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.hero-stat { text-align: left; }
.hero-stat .num { font-size: 28px; font-weight: 800; color: var(--gold); }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.5); margin-top: 4px; }

.carousel-dots {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 5;
}
.carousel-dots button {
  width: 10px; height: 10px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.4); background: transparent;
  cursor: pointer; transition: 0.3s; padding: 0;
}
.carousel-dots button.active { background: var(--gold); border-color: var(--gold); }
.carousel-arrows {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 5; width: 100%; display: flex; justify-content: space-between;
  pointer-events: none; padding: 0 16px;
}
.carousel-arrows button {
  pointer-events: auto; width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2); background: rgba(10,22,40,0.6);
  color: var(--white); font-size: 20px; cursor: pointer;
  transition: 0.3s; display: flex; align-items: center; justify-content: center;
}
.carousel-arrows button:hover { background: rgba(10,22,40,0.9); border-color: var(--accent); }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 8px;
  font-size: 15px; font-weight: 600; border: none;
  cursor: pointer; transition: all 0.3s; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(232,122,42,0.35); }
.btn-outline { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.3); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(232,122,42,0.08); }
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: var(--gold-light); transform: translateY(-1px); }
.btn-sm { padding: 10px 20px; font-size: 13px; }

/* ========== SECTIONS ========== */
.section { padding: 80px 0; }
.section-alt { background: var(--surface); }
.section-dark { background: var(--navy); }

.section-label {
  display: inline-block; font-size: 12px; font-weight: 700;
  color: var(--accent); letter-spacing: 3px; text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px); font-weight: 800;
  letter-spacing: -0.5px; line-height: 1.2; margin-bottom: 16px;
}
.section-desc {
  font-size: 16px; color: var(--text-dim); max-width: 600px; line-height: 1.7;
}
.section-dark .section-title { color: var(--white); }
.section-dark .section-desc { color: rgba(255,255,255,0.55); }

.section-header { text-align: center; margin-bottom: 60px; }
.section-header .section-desc { margin: 0 auto; }

/* ========== PRODUCT CARDS (Home) ========== */
.prod-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.prod-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
}
.prod-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.prod-card-img {
  height: 220px; overflow: hidden; background: var(--surface);
  display: flex; align-items: center; justify-content: center;
}
.prod-card-img img { width: 100%; height: 100%; object-fit: cover; }
.prod-card-body { padding: 24px; }
.prod-card-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.prod-card-body .sub { font-size: 13px; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.prod-card-body p { font-size: 14px; color: var(--text-dim); line-height: 1.6; }

/* ========== FEATURES ========== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: var(--white); padding: 32px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); transition: transform 0.3s, box-shadow 0.3s;
}
.feature-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.feature-icon { font-size: 32px; margin-bottom: 16px; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-dim); line-height: 1.7; }

.section-dark .feature-card { background: var(--navy-light); border-color: rgba(255,255,255,0.08); }
.section-dark .feature-card h3 { color: var(--white); }
.section-dark .feature-card p { color: rgba(255,255,255,0.55); }

/* ========== APP GRID (Applications) ========== */
.app-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.app-card {
  display: flex; gap: 20px; padding: 28px; border-radius: var(--radius-lg);
  background: var(--white); border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
}
.app-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.app-icon { font-size: 36px; flex-shrink: 0; }
.app-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.app-card p { font-size: 14px; color: var(--text-dim); line-height: 1.7; }

/* ========== ABOUT BLOCK ========== */
.about-block { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-block h2 { font-size: clamp(28px, 3.5vw, 38px); font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.about-block p { font-size: 15px; color: var(--text-dim); line-height: 1.8; margin-bottom: 16px; }
.about-block-img { border-radius: var(--radius-lg); overflow: hidden; }
.about-block-img img { width: 100%; height: 400px; object-fit: cover; border-radius: var(--radius-lg); }

/* ========== CTA ========== */
.cta {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cta::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
}
.cta * { position: relative; z-index: 1; }
.cta h2 { font-size: clamp(26px, 3.5vw, 38px); font-weight: 800; color: var(--white); margin-bottom: 16px; }
.cta p { font-size: 16px; color: rgba(255,255,255,0.55); max-width: 500px; margin: 0 auto 32px; }

/* ========== FOOTER ========== */
.footer {
  background: var(--navy); border-top: 1px solid rgba(255,255,255,0.06);
  padding: 60px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.45); line-height: 1.7; max-width: 300px; }
.footer h4 { font-size: 14px; font-weight: 700; color: var(--white); margin-bottom: 20px; letter-spacing: 1px; }
.footer a { display: block; font-size: 14px; color: rgba(255,255,255,0.5); padding: 6px 0; transition: color 0.2s; }
.footer a:hover { color: var(--gold); }
.footer-bottom {
  margin-top: 40px; padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: rgba(255,255,255,0.35);
}

/* ========== PAGE HERO (Subpages) ========== */
.page-hero {
  padding: 140px 0 80px; background: var(--navy); position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
}
.page-hero * { position: relative; z-index: 1; }
.page-hero h1 {
  font-size: clamp(32px, 5vw, 52px); font-weight: 800; color: var(--white);
  letter-spacing: -1px; margin-bottom: 16px;
}
.page-hero h1 .highlight { color: var(--accent); }
.page-hero p { font-size: 16px; color: rgba(255,255,255,0.55); max-width: 600px; line-height: 1.7; }

/* ========== PRODUCT DETAIL (Products page) ========== */
.prod-tabs { display: flex; gap: 8px; margin-bottom: 48px; flex-wrap: wrap; }
.prod-tab {
  padding: 12px 24px; border-radius: 8px; font-size: 14px; font-weight: 600;
  background: var(--surface); color: var(--text-dim); border: 1px solid var(--border);
  cursor: pointer; transition: 0.3s;
}
.prod-tab:hover { border-color: var(--accent); color: var(--accent); }
.prod-tab.active { background: var(--accent); color: var(--white); border-color: var(--accent); }

.prod-detail { display: none; }
.prod-detail.active { display: block; }
.prod-detail-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.prod-detail-img { border-radius: var(--radius-lg); overflow: hidden; background: var(--surface); }
.prod-detail-img img { width: 100%; height: 400px; object-fit: cover; }
.prod-detail h2 { font-size: 28px; font-weight: 800; margin-bottom: 16px; }
.prod-detail h2 .highlight { color: var(--accent); }
.prod-detail p { font-size: 15px; color: var(--text-dim); line-height: 1.7; margin-bottom: 24px; }

.specs-table { width: 100%; border-collapse: separate; border-spacing: 0; margin-bottom: 24px; }
.specs-table td {
  padding: 10px 16px; font-size: 14px; border-bottom: 1px solid var(--border);
}
.specs-table td:first-child { font-weight: 600; color: var(--text); width: 40%; background: var(--surface); }
.specs-table td:last-child { color: var(--text-dim); }

.feature-list { display: flex; flex-wrap: wrap; gap: 10px; }
.feature-list span {
  padding: 6px 14px; font-size: 13px; font-weight: 500;
  background: rgba(232,122,42,0.08); color: var(--accent);
  border-radius: 20px; border: 1px solid rgba(232,122,42,0.15);
}

/* ========== SOLUTION CARDS ========== */
.solution-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.solution-card {
  padding: 36px; border-radius: var(--radius-lg);
  background: var(--white); border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
}
.solution-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.solution-card .icon { font-size: 36px; margin-bottom: 16px; }
.solution-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.solution-card p { font-size: 14px; color: var(--text-dim); line-height: 1.7; }
.solution-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.solution-tags span {
  padding: 4px 12px; font-size: 12px; font-weight: 500;
  background: var(--surface); border-radius: 4px; color: var(--text-dim);
}

/* ========== PROCESS STEPS ========== */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step {
  text-align: center; padding: 32px 24px;
}
.process-step .step-num {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--accent); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800; margin: 0 auto 16px;
}
.process-step h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 14px; color: var(--text-dim); line-height: 1.6; }

/* ========== CONTACT ========== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info h3 { font-size: 24px; font-weight: 800; margin-bottom: 24px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 24px; }
.contact-item .icon { font-size: 24px; flex-shrink: 0; }
.contact-item .label { font-size: 13px; color: var(--text-dim); margin-bottom: 4px; }
.contact-item .value { font-size: 15px; font-weight: 600; }

.contact-form { background: var(--white); padding: 36px; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.contact-form h3 { font-size: 20px; font-weight: 700; margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px; font-size: 14px; font-family: var(--font);
  border: 1px solid var(--border); border-radius: 6px; background: var(--white);
  transition: border-color 0.2s; outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { min-height: 120px; resize: vertical; }

/* ========== ABOUT PAGE ========== */
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.value-card {
  padding: 32px; border-radius: var(--radius-lg);
  background: var(--white); border: 1px solid var(--border);
  text-align: center;
}
.value-card .icon { font-size: 36px; margin-bottom: 16px; }
.value-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.value-card p { font-size: 14px; color: var(--text-dim); line-height: 1.7; }

.cert-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 32px;
}
.cert-card {
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); background: var(--white);
}
.cert-card img { width: 100%; height: 200px; object-fit: cover; }
.cert-card .name { padding: 16px; font-size: 14px; font-weight: 600; text-align: center; }

/* ========== NEWS ========== */
.news-grid { display: grid; gap: 20px; }
.news-item {
  display: flex; gap: 24px; padding: 24px; border-radius: var(--radius-lg);
  background: var(--white); border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}
.news-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.news-date {
  flex-shrink: 0; width: 80px; text-align: center; padding-top: 4px;
}
.news-date .day { font-size: 28px; font-weight: 800; color: var(--accent); display: block; }
.news-date .mon { font-size: 13px; color: var(--text-dim); }
.news-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.news-body p { font-size: 14px; color: var(--text-dim); line-height: 1.6; }
.news-body .source { font-size: 12px; color: var(--text-light); margin-top: 8px; }

/* ========== GALLERY (sub-images) ========== */
.gallery-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px;
}
.gallery-grid img {
  width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius);
  cursor: pointer; transition: transform 0.3s;
}
.gallery-grid img:hover { transform: scale(1.03); }

/* ========== STATS / PROMISE ========== */
.stats-section { background: var(--navy); position: relative; overflow: hidden; }
.stats-section::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; z-index: 1; }
.stat-card {
  padding: 32px 24px; background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-lg);
  transition: transform 0.3s, border-color 0.3s;
}
.stat-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.stat-num {
  font-size: 40px; font-weight: 800; color: var(--gold);
  letter-spacing: -1px; margin-bottom: 8px;
}
.stat-label { font-size: 14px; color: rgba(255,255,255,0.85); font-weight: 600; margin-bottom: 8px; }
.stat-desc { font-size: 12px; color: rgba(255,255,255,0.45); }

.promise-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.promise-card {
  padding: 32px 28px; background: var(--white);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}
.promise-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.promise-num {
  font-size: 32px; font-weight: 800; color: var(--accent);
  letter-spacing: -1px; margin-bottom: 12px;
  display: inline-block; padding: 4px 12px;
  background: rgba(232,122,42,0.08); border-radius: 8px;
}
.promise-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.promise-card p { font-size: 14px; color: var(--text-dim); line-height: 1.7; }

.btn-outline-dark {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 8px;
  font-size: 15px; font-weight: 600;
  background: transparent; color: var(--navy);
  border: 1.5px solid var(--navy);
  transition: 0.3s; cursor: pointer;
}
.btn-outline-dark:hover { background: var(--navy); color: var(--white); }

@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .promise-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card { padding: 24px 16px; }
  .stat-num { font-size: 28px; }
  .promise-grid { grid-template-columns: 1fr; }
}

/* ========== ARTICLES ========== */
.articles-layout { display: grid; grid-template-columns: 280px 1fr; gap: 32px; align-items: start; }
.articles-sidebar { position: sticky; top: 96px; }
.sidebar-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px; margin-bottom: 20px;
}
.sidebar-card h4 {
  font-size: 13px; font-weight: 700; color: var(--text-dim);
  letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 16px;
}
.cat-list { display: flex; flex-direction: column; gap: 4px; }
.cat-btn {
  width: 100%; text-align: left; padding: 10px 14px; font-size: 14px;
  background: transparent; border: none; border-radius: 6px;
  color: var(--text-dim); cursor: pointer; transition: 0.2s;
  font-family: var(--font);
}
.cat-btn:hover { background: var(--surface); color: var(--text); }
.cat-btn.active { background: var(--accent); color: var(--white); font-weight: 600; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud span {
  padding: 5px 12px; font-size: 12px; background: var(--surface);
  border-radius: 14px; color: var(--text-dim); font-weight: 500;
}

.articles-list { display: grid; gap: 20px; }
.article-card {
  display: block; padding: 28px; background: var(--white);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  transition: transform 0.25s, box-shadow 0.25s;
}
.article-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.article-cat {
  display: inline-block; padding: 4px 12px; font-size: 12px; font-weight: 600;
  background: rgba(232,122,42,0.1); color: var(--accent); border-radius: 4px;
  margin-bottom: 12px;
}
.article-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; line-height: 1.4; }
.article-card p { font-size: 14px; color: var(--text-dim); line-height: 1.7; margin-bottom: 16px; }
.article-meta {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 16px; border-top: 1px solid var(--border);
  font-size: 13px; color: var(--text-light);
}
.read-more { color: var(--accent); font-weight: 600; }

.article-tags { margin-top: 40px; padding: 24px; background: var(--surface); border-radius: var(--radius-lg); }
.article-tags h4 { font-size: 13px; font-weight: 700; color: var(--text-dim); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 12px; }
.article-tags .tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.article-tags .tag-list span {
  padding: 6px 14px; font-size: 13px; font-weight: 500;
  background: var(--white); border: 1px solid var(--border);
  border-radius: 20px; color: var(--text-dim);
}
.article-body p { font-size: 16px; color: var(--text-dim); line-height: 1.9; margin-bottom: 20px; }
.article-body p:first-child::first-letter {
  float: left; font-size: 56px; line-height: 1; font-weight: 800;
  color: var(--accent); margin-right: 12px; margin-top: 4px;
}
.article-loading { padding: 40px 0; text-align: center; color: var(--text-light); }
.article-nav { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }

@media (max-width: 900px) {
  .articles-layout { grid-template-columns: 1fr; }
  .articles-sidebar { position: static; }
}
@media (max-width: 600px) {
  .article-card { padding: 20px; }
  .article-card h3 { font-size: 17px; }
}

/* ========== MOBILE NAV ========== */
@media (max-width: 900px) {
  .menu-toggle { display: flex; }
  .header-right { display: none; }
  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    width: 100%; max-width: 100vw; height: calc(100vh - var(--header-h));
    background: var(--navy); flex-direction: column; align-items: stretch;
    padding: 24px; gap: 4px; z-index: 999;
    transform: translateX(100%); transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
    overflow-y: auto; overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }
  .nav.open { transform: translateX(0); }
  .nav a {
    display: block; width: 100%; box-sizing: border-box;
    padding: 14px 18px; font-size: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    border-radius: 0;
  }
  .nav .nav-cta { margin-left: 0; margin-top: 8px; text-align: center; border-bottom: none; }
  .lang-switch { margin-left: 0; justify-content: center; margin-top: 12px; width: 100%; box-sizing: border-box; border-bottom: none; }

  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: 1fr; }
  .about-block { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .prod-detail-inner { grid-template-columns: 1fr; }
  .solution-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 24px; flex-wrap: wrap; }

  .page-hero { padding: 120px 0 60px; }
}

@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .section { padding: 50px 0; }
  .prod-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .process-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; gap: 12px; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .header-inner { padding: 0 16px; }
}

/* ========== ANIMATIONS ========== */
.fade-up { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-left { opacity: 0; transform: translateX(0); transition: opacity 0.6s ease; }
.fade-left.visible { opacity: 1; transform: translateX(0); }
.fade-right { opacity: 0; transform: translateX(0); transition: opacity 0.6s ease; }
.fade-right.visible { opacity: 1; transform: translateX(0); }
.fade-scale { opacity: 0; transform: scale(0.95); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-scale.visible { opacity: 1; transform: scale(1); }

/* Slide animations only on desktop, mobile uses pure opacity to avoid horizontal overflow */
@media (min-width: 901px) {
  .fade-left { transform: translateX(-30px); transition: opacity 0.6s ease, transform 0.6s ease; }
  .fade-left.visible { transform: translateX(0); }
  .fade-right { transform: translateX(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
  .fade-right.visible { transform: translateX(0); }
}

/* Prevent horizontal scroll from fade-right transforms applied before observer fires */
.about-block, .prod-detail-inner, .hero-overlay, .contact-grid, .articles-layout {
  overflow: hidden;
}

/* ========== FLOATING CTA (Mobile) ========== */
.floating-cta {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  width: 100%;
  max-width: 100vw;
  background: var(--navy); padding: 12px 16px; z-index: 998;
  border-top: 1px solid rgba(255,255,255,0.08);
  gap: 12px;
  overflow: hidden;
}
.floating-cta .btn { flex: 1; justify-content: center; font-size: 14px; padding: 12px; }
@media (max-width: 900px) {
  .floating-cta { display: flex; }
  body { padding-bottom: 64px; }
}