/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #1a1a2e;
  background: #fff;
}
a { text-decoration: none; color: inherit; transition: color 0.2s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== Colors ===== */
:root {
  --blue:   #1d5fa8;
  --blue-l: #e8f0fb;
  --teal:   #0f6e56;
  --teal-l: #e1f5ee;
  --amber:  #b07118;
  --amber-l: #faf0da;
  --purple: #534ab7;
  --purple-l: #eeedfe;
  --gray-50: #f7f8fa;
  --gray-100: #eef0f4;
  --gray-200: #dde0e8;
  --gray-500: #7a7f8e;
  --gray-700: #444860;
  --primary: #1d5fa8;
  --primary-dark: #174d90;
  --text: #1a1a2e;
  --text-muted: #5f6375;
}

/* ===== Container ===== */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow 0.2s;
}
.header.scrolled { box-shadow: 0 2px 16px rgba(0,0,0,0.08); }
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; }
.logo-main {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}
.logo-sub {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
  transition: all 0.2s;
}
.nav-link:hover { color: var(--primary); background: var(--blue-l); }
.nav-link.active { color: var(--primary); background: var(--blue-l); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.2s;
}

/* ===== Hero ===== */
.hero {
  padding-top: 68px;
  min-height: 580px;
  background: linear-gradient(160deg, #f0f4ff 0%, #e8f5ee 100%);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(29,95,168,0.06) 0%, transparent 60%),
    radial-gradient(circle at 80% 30%, rgba(15,110,86,0.05) 0%, transparent 55%);
}
.hero-content {
  padding-top: 60px;
  padding-bottom: 40px;
  position: relative;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  background: var(--blue-l);
  color: var(--blue);
  border: 1px solid rgba(29,95,168,0.2);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 20px;
}
.hero-title .highlight { color: var(--primary); }
.hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Stats row */
.hero-stats {
  background: #fff;
  border-top: 1px solid var(--gray-200);
}
.stats-row {
  display: flex;
  align-items: center;
  padding: 28px 32px;
}
.stat-item {
  flex: 1;
  text-align: center;
  padding: 0 20px;
}
.stat-num {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
}
.stat-num span { font-size: 18px; }
.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--gray-200);
  flex-shrink: 0;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--blue-l);
}
.btn-lg { padding: 13px 32px; font-size: 15px; }
.btn-full { width: 100%; }

/* ===== Section ===== */
.section { padding: 80px 0; }
.section-gray { background: var(--gray-50); }
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  background: var(--blue-l);
  color: var(--blue);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.section-desc {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== Biz Cards ===== */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.biz-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 32px 28px;
  transition: all 0.25s;
}
.biz-card:hover {
  border-color: rgba(29,95,168,0.3);
  box-shadow: 0 8px 32px rgba(29,95,168,0.08);
  transform: translateY(-4px);
}
.biz-card.featured {
  border-color: var(--primary);
  background: linear-gradient(135deg, #f0f7ff 0%, #fff 100%);
}
.biz-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.biz-icon svg { width: 28px; height: 28px; }
.icon-blue  { background: var(--blue-l);   color: var(--blue);   }
.icon-teal  { background: var(--teal-l);   color: var(--teal);   }
.icon-amber { background: var(--amber-l);  color: var(--amber);  }
.icon-purple{ background: var(--purple-l); color: var(--purple); }
.biz-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}
.biz-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.card-link {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
}
.card-link:hover { text-decoration: underline; }

/* ===== Advantage Grid ===== */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}
.adv-item {
  padding: 28px;
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--gray-200);
}
.adv-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--gray-200);
  line-height: 1;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}
.adv-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.adv-item p { font-size: 14px; color: var(--text-muted); }

/* ===== Client Grid ===== */
.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 16px;
}
.client-item {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 24px 16px;
  text-align: center;
  transition: all 0.2s;
}
.client-item:hover {
  border-color: var(--primary);
  background: var(--blue-l);
}
.client-icon {
  font-size: 28px;
  margin-bottom: 10px;
}
.client-item span {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

/* ===== CTA Section ===== */
.section-cta {
  background: var(--primary);
  padding: 72px 0;
}
.cta-content {
  text-align: center;
}
.cta-content h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.cta-content p {
  font-size: 15px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
}
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.section-cta .btn-primary {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.section-cta .btn-primary:hover {
  background: var(--blue-l);
  border-color: var(--blue-l);
}
.section-cta .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.section-cta .btn-outline:hover {
  background: rgba(255,255,255,0.12);
}

/* ===== Footer ===== */
.footer {
  background: #0f1220;
  color: rgba(255,255,255,0.8);
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding: 60px 32px 40px;
}
.footer-logo {
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
}
.footer-tagline {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255,255,255,0.5);
}
.footer-links h4,
.footer-contact h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 8px;
  transition: color 0.2s;
}
.footer-links a:hover { color: #fff; }
.footer-contact p {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 32px;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== Page Banner ===== */
.page-banner {
  padding-top: 68px;
  background: linear-gradient(160deg, #f0f4ff 0%, #e8f5ee 100%);
  padding-bottom: 48px;
}
.page-banner .container { padding-top: 40px; }
.breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.page-banner h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.page-banner p {
  font-size: 16px;
  color: var(--text-muted);
}

/* ===== About Page ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-text .section-tag { margin-bottom: 16px; }
.about-text h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}
.about-text p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.about-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.about-stat-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 24px;
  text-align: center;
  transition: all 0.2s;
}
.about-stat-card:hover {
  border-color: var(--primary);
  background: var(--blue-l);
}
.asc-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}
.asc-label { font-size: 13px; color: var(--text-muted); }

/* MVV Cards */
.mvv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.mvv-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 36px 28px;
  text-align: center;
}
.mvv-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.mvv-icon svg { width: 28px; height: 28px; }
.mvv-blue   { background: var(--blue-l);   color: var(--blue);   }
.mvv-teal   { background: var(--teal-l);   color: var(--teal);   }
.mvv-amber  { background: var(--amber-l);  color: var(--amber);  }
.mvv-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}
.mvv-card p { font-size: 14px; color: var(--text-muted); }

/* Timeline */
.timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding-left: 0;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 84px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
}
.timeline-item {
  display: flex;
  gap: 32px;
  margin-bottom: 40px;
  position: relative;
  align-items: flex-start;
}
.tl-year {
  flex-shrink: 0;
  width: 72px;
  text-align: right;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  padding-top: 2px;
}
.tl-content {
  position: relative;
  flex: 1;
  padding: 20px 24px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  margin-left: 24px;
}
.tl-content::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--primary);
}
.tl-content h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}
.tl-content p { font-size: 14px; color: var(--text-muted); }

/* Team Cards */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.team-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
}
.team-avatar {
  width: 60px;
  height: 60px;
  background: var(--blue-l);
  color: var(--blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  margin: 0 auto 16px;
}
.team-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
}
.team-card p { font-size: 14px; color: var(--text-muted); }

/* ===== Products Page ===== */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.filter-btn {
  padding: 8px 18px;
  border-radius: 24px;
  border: 1px solid var(--gray-200);
  background: #fff;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-muted);
  font-weight: 500;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.product-section {
  margin-bottom: 64px;
}
.product-section.hidden { display: none; }
.prod-section-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--gray-100);
}
.prod-section-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.prod-section-icon svg { width: 26px; height: 26px; }
.prod-section-header h2 { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.prod-section-header p { font-size: 14px; color: var(--text-muted); }
.prod-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.prod-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 24px;
  transition: all 0.2s;
}
.prod-card:hover {
  border-color: rgba(29,95,168,0.3);
  box-shadow: 0 6px 24px rgba(29,95,168,0.08);
}
.prod-cat-tag {
  display: inline-block;
  background: var(--gray-100);
  color: var(--text-muted);
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 12px;
  margin-bottom: 10px;
  font-weight: 500;
}
.prod-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.prod-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}
.prod-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.prod-features span {
  background: var(--blue-l);
  color: var(--blue);
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 12px;
}

/* Service Grid */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.service-item {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 28px;
}
.si-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--gray-200);
  line-height: 1;
  margin-bottom: 12px;
}
.service-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.service-item p { font-size: 14px; color: var(--text-muted); }

/* ===== Contact Page ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}
.contact-info h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}
.contact-intro {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}
.info-list { margin-bottom: 32px; }
.info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-100);
}
.info-item:last-child { border-bottom: none; }
.info-icon {
  width: 38px;
  height: 38px;
  background: var(--blue-l);
  color: var(--blue);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.info-icon svg { width: 18px; height: 18px; }
.info-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 3px;
  font-weight: 500;
}
.info-value { font-size: 14px; color: var(--text); }
.quick-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.qc-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 16px;
}
.qc-icon { font-size: 22px; flex-shrink: 0; }
.qc-title { font-size: 14px; font-weight: 600; margin-bottom: 3px; }
.qc-desc { font-size: 12px; color: var(--text-muted); }

/* Contact Form */
.contact-form-wrap {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 18px;
  padding: 40px 36px;
}
.contact-form-wrap h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.contact-form-wrap > p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}
.required { color: #e24b4a; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  transition: border-color 0.2s;
  font-family: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29,95,168,0.08);
}
.form-group textarea { resize: vertical; }
.form-note {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
}
.form-success {
  text-align: center;
  padding: 40px 20px;
}
.success-icon {
  width: 56px;
  height: 56px;
  background: #e1f5ee;
  color: var(--teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  margin: 0 auto 16px;
}
.form-success h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}
.form-success p { font-size: 14px; color: var(--text-muted); }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  background: #fff;
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: background 0.2s;
}
.faq-q:hover { background: var(--gray-50); }
.faq-arrow {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform 0.2s;
  color: var(--text-muted);
}
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a {
  display: none;
  padding: 0 22px 18px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  border-top: 1px solid var(--gray-100);
  padding-top: 16px;
}
.faq-item.open .faq-a { display: block; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .mvv-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .timeline::before { left: 70px; }
}
@media (max-width: 680px) {
  .container { padding: 0 20px; }
  .nav { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--gray-200); padding: 16px 20px; gap: 4px; }
  .nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .logo-sub { display: none; }
  .logo-main { font-size: 12px; }
  .stats-row { flex-wrap: wrap; gap: 0; }
  .stat-item { min-width: 50%; padding: 16px; }
  .stat-divider { display: none; }
  .hero-title { font-size: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 24px 20px; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; padding: 40px 20px 24px; }
  .team-grid { grid-template-columns: 1fr; }
  .about-card-grid { grid-template-columns: 1fr 1fr; }
  .client-grid { grid-template-columns: repeat(4, 1fr); }
}