/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --navy:      #0a2540;
  --blue:      #f57c00;
  --blue-light:#ff9800;
  --blue-pale: #fff3e0;
  --teal:      #e65100;
  --teal-light:#ffb74d;
  --orange:    #f57c00;
  --white:     #ffffff;
  --gray-light:#f4f6f9;
  --gray:      #8898aa;
  --text:      #2d3a4a;
  --radius:    8px;
  --shadow:    0 4px 24px rgba(10,37,64,.10);
  --transition:0.3s ease;
}
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans CJK SC', 'Source Han Sans CN', sans-serif;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--gray-light); }
::-webkit-scrollbar-thumb { background: var(--blue-light); border-radius: 3px; }

/* ===== UTILITY ===== */
.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  margin-bottom: 14px;
}
.section-sub {
  text-align: center;
  color: var(--gray);
  font-size: 1rem;
  margin-bottom: 60px;
  line-height: 1.8;
}
.section-divider {
  width: 56px; height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
  border-radius: 2px;
  margin: 16px auto 20px;
}
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 36px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  color: var(--white);
  border-radius: 40px;
  font-size: 1rem; font-weight: 600;
  border: none; cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 6px 20px rgba(21,101,192,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(21,101,192,.45); }
.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 34px;
  border: 2px solid var(--orange);
  color: var(--orange);
  border-radius: 40px;
  font-size: 1rem; font-weight: 600;
  cursor: pointer; transition: all var(--transition);
  background: transparent;
}
.btn-outline:hover { background: var(--orange); color: white; }

/* ===== NAV ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.nav.scrolled {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 2px 20px rgba(10,37,64,.12);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; max-width: 1280px; margin: 0 auto; padding: 0 32px;
}
.nav-logo {
  display: flex; align-items: center; gap: 12px;
}
.nav-logo-icon {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.nav-logo-icon svg { width: 26px; height: 26px; fill: white; }
.nav-logo-icon img { width: 32px; height: 32px; object-fit: contain; display: block; border-radius: 6px; }
.nav-logo-text { line-height: 1.2; }
.nav-logo-name {
  font-size: 1.05rem; font-weight: 700;
  color: var(--white);
  transition: color var(--transition);
}
.nav.scrolled .nav-logo-name { color: var(--navy); }
.nav-logo-en {
  font-size: 0.65rem; color: rgba(255,255,255,0.7);
  letter-spacing: 0.05em;
  transition: color var(--transition);
}
.nav.scrolled .nav-logo-en { color: var(--gray); }
.nav-links {
  display: flex; align-items: center; gap: 36px;
}
.nav-links a {
  font-size: 0.92rem; font-weight: 500;
  color: rgba(255,255,255,0.9);
  position: relative; padding-bottom: 2px;
  transition: color var(--transition);
}
.nav.scrolled .nav-links a { color: var(--text); }
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 2px;
  background: var(--blue); border-radius: 1px;
  transform: scaleX(0); transition: transform var(--transition);
}
.nav-links a:hover { color: var(--blue-light) !important; }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta {
  padding: 9px 26px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  color: white !important; border-radius: 24px;
  font-weight: 600 !important;
  box-shadow: 0 4px 14px rgba(21,101,192,.3);
  transition: transform var(--transition), box-shadow var(--transition) !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(21,101,192,.4) !important; color: white !important; }
.nav-links a.active:not(.nav-cta) { color: var(--blue-light) !important; font-weight: 600 !important; }
.nav-links a.active:not(.nav-cta)::after { transform: scaleX(1) !important; }
.nav-links a.active.nav-cta {
  background: linear-gradient(135deg, var(--blue), var(--teal)) !important;
  color: white !important;
  box-shadow: 0 4px 14px rgba(21,101,192,.3) !important;
}
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 6px;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px; border-radius: 1px;
  background: var(--white);
  transition: all var(--transition);
}
.nav.scrolled .nav-hamburger span { background: var(--navy); }
.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--white);
  border-top: 1px solid #e8ecf0;
  padding: 16px 24px 24px;
  gap: 4px;
  box-shadow: 0 8px 24px rgba(10,37,64,.10);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  padding: 12px 0; font-size: 0.95rem; font-weight: 500;
  color: var(--text); border-bottom: 1px solid #f0f2f5;
}
.nav-mobile a:last-child { border-bottom: none; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  background:
    linear-gradient(160deg, rgba(10,37,64,0.88) 0%, rgba(21,101,192,0.75) 50%, rgba(0,137,123,0.70) 100%),
    url('../images/hero-bg.jpg') center/cover no-repeat;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(21,101,192,0.2) 0%, transparent 60%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 760px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 18px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 20px;
  color: rgba(255,255,255,0.9);
  font-size: 0.82rem; letter-spacing: 0.08em;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}
.hero-badge span { width: 6px; height: 6px; background: var(--teal-light); border-radius: 50%; display: block; }
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #FFB74D, #F57C00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.80);
  line-height: 1.8;
  margin-bottom: 44px;
  max-width: 580px;
}
.hero-btns { display: flex; gap: 18px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 48px; margin-top: 72px; flex-wrap: wrap;
}
.hero-stat-item { text-align: left; }
.hero-stat-num {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700; color: var(--white);
  line-height: 1;
}
.hero-stat-num span { font-size: 1.2rem; color: var(--teal-light); margin-left: 2px; }
.hero-stat-label {
  font-size: 0.85rem; color: rgba(255,255,255,0.65);
  margin-top: 4px;
}
.hero-scroll {
  position: absolute; bottom: 36px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.55); font-size: 0.75rem;
  animation: bounce 2s infinite;
}
.hero-scroll svg { width: 20px; opacity: .6; }
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== NOTICE BAR ===== */
.notice-bar {
  background: linear-gradient(90deg, var(--navy), var(--blue));
  color: rgba(255,255,255,0.85);
  padding: 12px 0;
  overflow: hidden;
}
.notice-inner {
  display: flex; align-items: center; gap: 32px;
  max-width: 1280px; margin: 0 auto; padding: 0 32px;
  flex-wrap: wrap;
}
.notice-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.12);
  padding: 3px 12px; border-radius: 12px;
  font-size: 0.78rem; font-weight: 600;
  white-space: nowrap; flex-shrink: 0;
}
.notice-tag svg { width: 13px; fill: var(--teal-light); }
.notice-items {
  display: flex; gap: 40px; overflow: hidden;
  font-size: 0.82rem;
}
.notice-items span { white-space: nowrap; }

/* ===== ABOUT ===== */
.about { padding: 110px 0; background: var(--white); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
.about-img-wrapper {
  position: relative;
}
.about-img {
  width: 100%; border-radius: 16px;
  box-shadow: var(--shadow);
  object-fit: cover; height: 440px;
}
.about-img-card {
  position: absolute; right: -28px; bottom: -28px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  color: white; padding: 24px 28px;
  border-radius: 14px;
  box-shadow: 0 12px 32px rgba(21,101,192,.35);
}
.about-img-card-num { font-size: 2.4rem; font-weight: 700; line-height: 1; }
.about-img-card-label { font-size: 0.82rem; opacity: 0.85; margin-top: 4px; }
.about-text .section-title,
.about-text .section-sub { text-align: left; }
.about-text .section-divider { margin-left: 0; }
.about-text .section-sub { margin-bottom: 32px; }
.about-list {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
  margin-bottom: 40px;
}
.about-list-item {
  display: flex; align-items: flex-start; gap: 12px;
}
.about-list-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--blue-pale);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.about-list-icon svg { width: 18px; fill: var(--blue-light); }
.about-list-title { font-size: 0.9rem; font-weight: 600; color: var(--navy); }
.about-list-desc { font-size: 0.8rem; color: var(--gray); margin-top: 2px; }

/* ===== SERVICES ===== */
.services { padding: 110px 0; background: var(--gray-light); }
.services-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px;
  max-width: 900px; margin: 0 auto;
}
.service-card {
  background: var(--white);
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative; overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
  transform: scaleX(0);
  transition: transform var(--transition);
}
.service-card:hover { transform: translateY(-6px); box-shadow: 0 16px 48px rgba(10,37,64,.14); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 64px; height: 64px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px;
}
.service-icon svg { width: 32px; }
.service-icon.blue { background: linear-gradient(135deg, #e3f0fb, #bbdefb); }
.service-icon.blue svg { fill: var(--blue); }
.service-icon.teal { background: linear-gradient(135deg, #e0f2f1, #b2dfdb); }
.service-icon.teal svg { fill: var(--teal); }
.service-icon.navy { background: linear-gradient(135deg, #fff3e0, #ffe0b2); }
.service-icon.navy svg { fill: var(--orange); }
.service-title { font-size: 1.2rem; font-weight: 700; color: var(--navy); margin-bottom: 12px; }
.service-desc { font-size: 0.9rem; color: var(--gray); line-height: 1.8; margin-bottom: 24px; }
.service-features { display: flex; flex-direction: column; gap: 8px; }
.service-feature {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.84rem; color: var(--text);
}
.service-feature::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue-light); flex-shrink: 0;
}

/* ===== PRODUCTS ===== */
.products { padding: 110px 0; background: var(--white); }
.products-filter {
  display: flex; justify-content: center; gap: 12px;
  margin-bottom: 48px; flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 24px; border-radius: 24px;
  border: 2px solid #e0e6ef;
  background: var(--white); color: var(--gray);
  font-size: 0.88rem; font-weight: 500;
  cursor: pointer; transition: all var(--transition);
}
.filter-btn.active, .filter-btn:hover {
  border-color: var(--blue);
  background: var(--blue);
  color: white;
}
.products-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.product-card {
  border-radius: 14px; overflow: hidden;
  background: var(--white);
  box-shadow: 0 2px 16px rgba(10,37,64,.08);
  border: 1px solid #e8ecf2;
  transition: transform var(--transition), box-shadow var(--transition);
}
.product-card:hover { transform: translateY(-5px); box-shadow: 0 12px 36px rgba(10,37,64,.14); }
.product-img {
  width: 100%; height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--blue-pale), #e0f2f1);
  display: flex; align-items: center; justify-content: center;
}
.product-img svg { width: 72px; opacity: 0.4; fill: var(--blue); }
.product-body { padding: 20px; }
.product-tag {
  display: inline-block;
  padding: 3px 10px; border-radius: 10px;
  font-size: 0.72rem; font-weight: 600;
  background: var(--blue-pale); color: var(--blue);
  margin-bottom: 10px;
}
.product-name { font-size: 1rem; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.product-desc { font-size: 0.82rem; color: var(--gray); line-height: 1.7; }
.product-footer {
  padding: 14px 20px;
  border-top: 1px solid #f0f2f5;
  display: flex; align-items: center; justify-content: space-between;
}
.product-more {
  font-size: 0.84rem; color: var(--blue); font-weight: 500;
  display: flex; align-items: center; gap: 4px;
}
.product-more svg { width: 14px; fill: var(--blue); }

/* ===== WHY US ===== */
.why { padding: 110px 0; background: var(--navy); position: relative; overflow: hidden; }
.why::before {
  content: '';
  position: absolute; top: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(245,124,0,.25) 0%, transparent 70%);
  pointer-events: none;
}
.why::after {
  content: '';
  position: absolute; bottom: -80px; left: -80px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(230,81,0,.20) 0%, transparent 70%);
  pointer-events: none;
}
.why .section-title { color: var(--white); }
.why .section-sub { color: rgba(255,255,255,0.6); }
.why-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  position: relative; z-index: 1;
}
.why-card {
  padding: 36px 28px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 16px;
  text-align: center;
  transition: background var(--transition), border-color var(--transition);
}
.why-card:hover {
  background: rgba(255,255,255,0.10);
  border-color: rgba(245,124,0,0.5);
}
.why-num {
  font-size: 2.8rem; font-weight: 700;
  background: linear-gradient(135deg, #FFB74D, #F57C00);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  line-height: 1; margin-bottom: 6px;
}
.why-num-unit { font-size: 1.2rem; }
.why-label { font-size: 0.9rem; color: rgba(255,255,255,0.85); font-weight: 600; margin-bottom: 10px; }
.why-desc { font-size: 0.82rem; color: rgba(255,255,255,0.50); line-height: 1.7; }

/* ===== PARTNERS ===== */
.partners { padding: 80px 0; background: var(--gray-light); }
.partners-title {
  text-align: center; font-size: 0.9rem; font-weight: 600;
  color: var(--gray); letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 44px;
}
.partners-logos {
  display: flex; align-items: center; justify-content: center;
  gap: 40px; flex-wrap: wrap;
}
.partner-logo {
  padding: 16px 28px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(10,37,64,.06);
  font-size: 0.95rem; font-weight: 700;
  color: var(--navy); letter-spacing: 0.02em;
  border: 1px solid rgba(10,37,64,.06);
  transition: box-shadow var(--transition), transform var(--transition);
}
.partner-logo:hover { box-shadow: 0 6px 24px rgba(21,101,192,.15); transform: translateY(-2px); }

/* ===== CONTACT ===== */
.contact { padding: 110px 0; background: var(--white); }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 72px; align-items: start;
}
.contact-info {}
.contact-info .section-title,
.contact-info .section-sub { text-align: left; }
.contact-info .section-divider { margin-left: 0; }
.contact-items { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
  display: flex; gap: 16px; align-items: flex-start;
}
.contact-item-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--blue-pale);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-item-icon svg { width: 22px; fill: var(--blue); }
.contact-item-label { font-size: 0.78rem; color: var(--gray); font-weight: 600; margin-bottom: 3px; }
.contact-item-value { font-size: 0.95rem; color: var(--text); font-weight: 500; }
.contact-form {
  background: var(--gray-light);
  border-radius: 20px; padding: 44px;
}
.contact-form h3 { font-size: 1.3rem; font-weight: 700; color: var(--navy); margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: 0.84rem; font-weight: 600; color: var(--text);
  margin-bottom: 6px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px;
  border: 2px solid #e0e6ef;
  border-radius: var(--radius);
  font-size: 0.9rem; font-family: inherit;
  background: var(--white); color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(25,118,210,.12);
}
.form-group textarea { resize: vertical; min-height: 110px; }

/* ===== FOOTER ===== */
.footer { background: var(--navy); color: rgba(255,255,255,0.75); }
.footer-main {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 56px;
  padding: 72px 0 56px;
}
.footer-col-brand { }
.footer-brand .nav-logo-name { color: var(--white); font-size: 1.05rem; }
.footer-brand .nav-logo-en { color: rgba(255,255,255,0.5); }
.footer-tagline {
  font-size: 0.85rem; color: rgba(255,255,255,0.5);
  line-height: 1.8; margin-top: 16px; margin-bottom: 24px;
}
.footer-socials { display: flex; gap: 10px; }
.footer-social {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}
.footer-social:hover { background: rgba(255,255,255,0.18); }
.footer-social svg { width: 16px; fill: rgba(255,255,255,0.7); }
.footer-col-title {
  font-size: 0.9rem; font-weight: 700; color: var(--white);
  margin-bottom: 20px; letter-spacing: 0.03em;
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a {
  font-size: 0.85rem; color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--white); }
.footer-contact-item {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 0.84rem; color: rgba(255,255,255,0.55);
  margin-bottom: 14px; line-height: 1.6;
}
.footer-contact-item svg { width: 16px; fill: var(--teal-light); flex-shrink: 0; margin-top: 2px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.8rem; color: rgba(255,255,255,0.35);
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--white); }
.icp-link { text-decoration: none; }

/* ===== BACK TO TOP ===== */
.back-top {
  position: fixed; bottom: 40px; right: 40px; z-index: 999;
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(245,124,0,.4);
  cursor: pointer; opacity: 0; pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}
.back-top.show { opacity: 1; pointer-events: all; }
.back-top:hover { transform: translateY(-3px); }
.back-top svg { width: 18px; fill: white; }

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-img-wrapper { display: none; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero { min-height: 90vh; }
  .hero-stats { gap: 28px; }
  .services-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .footer-col-brand .nav-logo-en { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }
  .about-list { grid-template-columns: 1fr; }
  .back-top { bottom: 24px; right: 24px; }
}
@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .partners-logos { gap: 16px; }
  .hero-btns { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
}