:root {
  --primary: #FF6601;
  --primary-light: #ff8533;
  --primary-dark: #e05a00;
  --primary-rgb: 255, 102, 1;
  --bg: #ffffff;
  --bg-alt: #f8f9fa;
  --bg-dark: #1a1a2e;
  --text: #333333;
  --text-light: #666666;
  --text-lighter: #999999;
  --border: #e8e8e8;
  --shadow: rgba(0,0,0,0.08);
  --shadow-lg: rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================== RESET ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; height: 100%; }
body {
  font-family: 'Noto Sans SC', 'Inter', -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
  display: flex; flex-direction: column; min-height: 100vh;
}
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===================== HEADER ===================== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: transparent;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 20px var(--shadow);
}
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  height: 84px; display: flex; align-items: center;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.6rem; font-weight: 700; letter-spacing: 2px;
  outline: none; background: none; -webkit-tap-highlight-color: transparent;
}
.logo-icon {
  width: 67px; height: 67px; object-fit: contain; display: block;
}
.logo-text { color: var(--primary); }
.logo-sub { font-size: 0.65rem; color: var(--text-light); font-weight: 400; letter-spacing: 0; display: block; line-height: 1.2; margin-top: 2px; }

/* NAV */
.nav { display: flex; align-items: center; justify-content: space-between; flex: 1; height: 100%; }
.nav a:not(.logo) {
  padding: 8px 12px; border-radius: 6px;
  font-size: 0.75rem; font-weight: 400; white-space: nowrap;
  color: var(--text); transition: all var(--transition); position: relative;
}
.nav a:not(.logo):hover, .nav a:not(.logo).active { color: var(--primary); background: rgba(var(--primary-rgb), 0.08); }
.nav-search { display: flex; align-items: center; cursor: pointer; padding: 4px; border-radius: 6px; transition: background var(--transition); }
.nav-search:hover { background: rgba(var(--primary-rgb), 0.08); }
.nav-search-icon { width: 16px; height: 16px; fill: var(--text); display: block; }
.search-overlay {
  position: fixed; inset: 0; z-index: 2000; background: rgba(0,0,0,0.5);
  display: none; align-items: center; justify-content: center;
}
.search-overlay.show { display: flex; }
.search-overlay-content {
  position: relative; width: 90%; max-width: 500px;
}
.search-overlay-input {
  width: 100%; padding: 16px 50px 16px 20px; border: none; border-radius: 12px;
  font-size: 1.1rem; outline: none; background: #fff; box-shadow: 0 8px 40px rgba(0,0,0,0.2);
}
.search-overlay-close {
  position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  width: 24px; height: 24px; fill: var(--text-lighter); cursor: pointer;
}

/* THEME PICKER */
.theme-picker { position: relative; }
.theme-toggle {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  border-radius: 6px; transition: all var(--transition); cursor: pointer;
  color: var(--text-light);
}
.theme-toggle:hover { background: rgba(var(--primary-rgb), 0.08); color: var(--primary); }
.theme-toggle svg { width: 18px; height: 18px; fill: currentColor; }
.theme-dropdown {
  position: absolute; top: calc(100% + 8px); right: 0;
  background: #fff; border-radius: 12px; padding: 16px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.15); border: 1px solid var(--border);
  display: none; z-index: 1001; min-width: 210px;
}
.theme-dropdown.show { display: block; animation: fadeDown .2s ease; }
@keyframes fadeDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.theme-dropdown-title {
  font-size: 0.72rem; font-weight: 600; color: var(--text-lighter);
  text-transform: uppercase; letter-spacing: .5px; margin-bottom: 10px;
}
.theme-preset { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.theme-color {
  width: 28px; height: 28px; border-radius: 50%; cursor: pointer;
  border: 2.5px solid transparent; transition: all .2s;
}
.theme-color:hover { transform: scale(1.15); }
.theme-color.active { border-color: var(--text); box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--text); }
.theme-custom {
  display: flex; align-items: center; gap: 8px;
  padding-top: 10px; border-top: 1px solid var(--border);
}
.theme-custom input[type="color"] {
  width: 28px; height: 28px; border: none; border-radius: 50%;
  cursor: pointer; padding: 0; background: none;
  -webkit-appearance: none; appearance: none;
}
.theme-custom input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.theme-custom input[type="color"]::-webkit-color-swatch { border: 2px solid var(--border); border-radius: 50%; }
.theme-custom span { font-size: 0.82rem; color: var(--text-light); }

/* LANGUAGE DROPDOWN */
.lang-dropdown { position: relative; user-select: none; }
.lang-dropdown-toggle {
  display: flex; align-items: center; gap: 4px; padding: 5px 10px;
  border: 1.5px solid var(--border); border-radius: 6px; cursor: pointer;
  font-size: 0.75rem; font-weight: 400; color: var(--text); transition: all var(--transition);
}
.lang-dropdown-toggle:hover { border-color: var(--primary); }
.lang-arrow { width: 18px; height: 18px; fill: var(--text-lighter); transition: transform 0.2s; }
.lang-dropdown-menu {
  position: absolute; top: 100%; right: 0; margin-top: 4px; min-width: 120px;
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 8px 30px var(--shadow-lg); overflow: hidden; display: none; z-index: 100;
}
.lang-dropdown-menu.show { display: block; }
.lang-option {
  padding: 8px 14px; font-size: 0.85rem; color: var(--text); cursor: pointer;
  transition: background var(--transition);
}
.lang-option:hover { background: rgba(var(--primary-rgb), 0.06); color: var(--primary); }
.lang-option.active { background: rgba(var(--primary-rgb), 0.1); color: var(--primary); font-weight: 600; }

/* MOBILE MENU */
.mobile-toggle {
  display: none; width: 36px; height: 36px; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px; cursor: pointer;
}
.mobile-toggle span {
  width: 22px; height: 2px; background: var(--text); border-radius: 2px;
  transition: all var(--transition);
}
.mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===================== HERO FULLSCREEN ===================== */
.hero-full { }
.full-slide {
  width: 100%; height: 100vh; background-size: cover; background-position: center;
  position: relative; display: flex; align-items: center; justify-content: center;
}
.full-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(rgba(0,0,0,0.1), rgba(0,0,0,0.3));
}
.full-content { position: relative; z-index: 2; text-align: center; }
.full-title {
  font-size: 3.5rem; font-weight: 600; color: #fff; letter-spacing: -0.005em;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3); margin-bottom: 12px;
}
.full-desc {
  font-size: 1.2rem; color: rgba(255,255,255,0.8); letter-spacing: 0;
  font-weight: 400;
}
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(var(--primary-rgb), 0.2), rgba(var(--primary-rgb), 0.05) 60%, transparent 70%);
  border: 1px solid rgba(var(--primary-rgb), 0.2);
  display: flex; align-items: center; justify-content: center;
  position: relative; animation: spin 30s linear infinite;
}
@keyframes spin { 100% { transform: rotate(360deg); } }
.hero-globe::before {
  content: ''; position: absolute; inset: 20px; border-radius: 50%;
  border: 1px dashed rgba(var(--primary-rgb), 0.15);
  animation: spin 20s linear infinite reverse;
}
.hero-globe::after {
  content: ''; position: absolute; inset: 50px; border-radius: 50%;
  border: 1px dashed rgba(var(--primary-rgb), 0.1);
  animation: spin 15s linear infinite;
}
.globe-center {
  animation: spin 30s linear infinite reverse;
  text-align: center; z-index: 2;
}
.globe-center .globe-icon {
  width: 80px; height: 80px; margin: 0 auto 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 20px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 40px rgba(var(--primary-rgb), 0.4);
}
.globe-center .globe-icon svg { width: 44px; height: 44px; fill: #fff; }
.globe-center p { color: rgba(255,255,255,0.6); font-size: 0.85rem; }

/* FLOATING BADGES */
.hero-badge {
  position: absolute; background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px; padding: 14px 18px; animation: float 6s ease-in-out infinite;
  z-index: 3;
}
.hero-badge:nth-child(1) { top: 10%; right: 5%; animation-delay: 0s; }
.hero-badge:nth-child(2) { bottom: 15%; right: 0%; animation-delay: 2s; }
.hero-badge:nth-child(3) { bottom: 30%; left: -5%; animation-delay: 4s; }
.hero-badge .badge-num {
  font-size: 1.5rem; font-weight: 700; color: var(--primary);
}
.hero-badge .badge-label { font-size: 0.75rem; color: rgba(255,255,255,0.7); }

/* STATS BAR */
.stats-bar {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.05); backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255,255,255,0.1); z-index: 5;
}
.stats-inner {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  max-width: 1200px; margin: 0 auto;
}
.stat-item {
  padding: 28px 24px; text-align: center;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: 2.2rem; font-weight: 700; color: var(--primary);
  font-family: 'Inter', sans-serif;
}
.stat-num span { font-size: 1rem; font-weight: 400; }
.stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 4px; }

/* ===================== SECTION COMMON ===================== */
.section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
  display: inline-block; padding: 6px 18px; border-radius: 20px;
  background: rgba(var(--primary-rgb), 0.08); color: var(--primary);
  font-size: 0.82rem; font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase; margin-bottom: 14px;
}
.section-title {
  font-size: 2.4rem; font-weight: 700; color: var(--text);
  margin-bottom: 16px; line-height: 1.3;
}
.section-desc {
  font-size: 1.05rem; color: var(--text-light); max-width: 640px;
  margin: 0 auto; line-height: 1.8;
}

/* ===================== PRODUCTS ===================== */
.products { background: var(--bg-alt); }
.product-tabs {
  display: flex; justify-content: center; gap: 8px;
  margin-bottom: 48px; flex-wrap: wrap;
}
.product-tab {
  padding: 10px 24px; border-radius: 8px; font-size: 0.9rem;
  font-weight: 500; color: var(--text-light); cursor: pointer;
  transition: all var(--transition); border: 1.5px solid transparent;
}
.product-tab:hover { color: var(--primary); }
.product-tab.active {
  background: var(--primary); color: #fff; border-color: var(--primary);
}
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.product-card {
  background: #fff; border-radius: 16px; overflow: hidden;
  border: 1px solid var(--border); transition: all var(--transition);
}
.product-card:hover {
  transform: translateY(-6px); box-shadow: 0 12px 40px var(--shadow-lg);
  border-color: rgba(var(--primary-rgb), 0.3);
}
.product-img {
  height: 220px; background: #f5f7fa;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.product-img img {
  width: 100%; height: 100%; object-fit: contain;
  padding: 16px; transition: transform 0.4s ease;
}
.product-card:hover .product-img img { transform: scale(1.05); }
.product-badge {
  position: absolute; top: 14px; right: 14px; padding: 4px 12px;
  background: var(--primary); color: #fff; border-radius: 20px;
  font-size: 0.72rem; font-weight: 600;
}
.product-body { padding: 24px; }
.product-body h3 {
  font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--text);
}
.product-body p {
  font-size: 0.88rem; color: var(--text-light); line-height: 1.7;
  margin-bottom: 16px;
}
.product-specs { display: flex; gap: 12px; flex-wrap: wrap; }
.product-spec {
  padding: 4px 10px; background: var(--bg-alt); border-radius: 4px;
  font-size: 0.75rem; color: var(--text-light);
}
.product-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--primary); font-size: 0.88rem; font-weight: 500;
  margin-top: 14px; transition: gap var(--transition);
}
.product-link:hover { gap: 10px; }

/* ===================== MANUFACTURING ===================== */
.manufacturing-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
}
.mfg-card {
  padding: 40px; border-radius: 16px; background: #fff;
  border: 1px solid var(--border); transition: all var(--transition);
  position: relative; overflow: hidden;
}
.mfg-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 4px; background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0); transform-origin: left; transition: transform var(--transition);
}
.mfg-card:hover::before { transform: scaleX(1); }
.mfg-card:hover { box-shadow: 0 8px 30px var(--shadow); }
.mfg-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(var(--primary-rgb), 0.1); display: flex;
  align-items: center; justify-content: center; margin-bottom: 20px;
}
.mfg-icon svg { width: 28px; height: 28px; fill: var(--primary); }
.mfg-card h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 12px; }
.mfg-card p { font-size: 0.92rem; color: var(--text-light); line-height: 1.8; }
.mfg-list { margin-top: 16px; }
.mfg-list li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 0.88rem; color: var(--text-light); margin-bottom: 8px;
}
.mfg-list li::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary); margin-top: 8px; flex-shrink: 0;
}

/* PROCESS TIMELINE */
.process-section { margin-top: 60px; }
.process-timeline {
  display: flex; align-items: flex-start; justify-content: space-between;
  position: relative; padding-top: 30px;
}
.process-timeline::before {
  content: ''; position: absolute; top: 44px; left: 10%; right: 10%;
  height: 2px; background: linear-gradient(90deg, var(--primary), var(--primary-light));
}
.process-step { text-align: center; flex: 1; position: relative; }
.process-dot {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--primary); margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 0.82rem;
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
  position: relative; z-index: 2;
}
.process-step h4 { font-size: 0.92rem; font-weight: 600; margin-bottom: 6px; }
.process-step p { font-size: 0.8rem; color: var(--text-light); max-width: 140px; margin: 0 auto; }

/* ===================== SUPPORT ===================== */
.support { background: var(--bg-alt); }
.support-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.support-card {
  border-radius: 16px; overflow: hidden; background: #fff;
  border: 1px solid var(--border); transition: all var(--transition);
}
.support-card:hover {
  transform: translateY(-6px); box-shadow: 0 12px 40px var(--shadow-lg);
}
.support-img {
  height: 200px; display: flex; align-items: center; justify-content: center;
  position: relative;
}
.support-img .support-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.1), rgba(var(--primary-rgb), 0.03));
}
.support-img svg { width: 60px; height: 60px; fill: var(--primary); position: relative; z-index: 1; opacity: 0.6; }
.support-body { padding: 24px; }
.support-tag {
  display: inline-block; padding: 3px 10px; border-radius: 4px;
  background: rgba(var(--primary-rgb), 0.08); color: var(--primary);
  font-size: 0.75rem; font-weight: 500; margin-bottom: 10px;
}
.support-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
.support-body p { font-size: 0.88rem; color: var(--text-light); line-height: 1.7; }

/* ===================== ABOUT ===================== */
.about-content {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-text h3 {
  font-size: 1.6rem; font-weight: 700; margin-bottom: 20px; line-height: 1.4;
}
.about-text p {
  font-size: 0.95rem; color: var(--text-light); line-height: 1.9;
  margin-bottom: 16px;
}
.about-features {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px;
}
.about-feat {
  display: flex; align-items: flex-start; gap: 12px;
}
.about-feat-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: rgba(var(--primary-rgb), 0.1); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
}
.about-feat-icon svg { width: 22px; height: 22px; fill: var(--primary); }
.about-feat h4 { font-size: 0.92rem; font-weight: 600; margin-bottom: 4px; }
.about-feat p { font-size: 0.82rem; color: var(--text-light); }
.about-visual {
  position: relative;
}
.about-img-main {
  border-radius: 16px; overflow: hidden;
  background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.1), rgba(var(--primary-rgb), 0.03));
  height: 420px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
}
.about-img-main svg { width: 120px; height: 120px; fill: var(--primary); opacity: 0.3; }
.about-float-card {
  position: absolute; bottom: -20px; right: -20px;
  background: #fff; border-radius: 12px; padding: 20px 24px;
  box-shadow: 0 8px 30px var(--shadow-lg);
}
.about-float-card .afc-num { font-size: 2rem; font-weight: 700; color: var(--primary); }
.about-float-card .afc-label { font-size: 0.82rem; color: var(--text-light); }

/* ===================== CONTACT ===================== */
.contact { background: var(--bg-alt); }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
}
.contact-info h3 {
  font-size: 1.5rem; font-weight: 700; margin-bottom: 24px;
}
.contact-item {
  display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px;
}
.contact-item-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(var(--primary-rgb), 0.1); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-item-icon svg { width: 24px; height: 24px; fill: var(--primary); }
.contact-item h4 { font-size: 0.92rem; font-weight: 600; margin-bottom: 4px; }
.contact-item p { font-size: 0.88rem; color: var(--text-light); }

.contact-form { background: #fff; padding: 40px; border-radius: 16px; box-shadow: 0 4px 20px var(--shadow); }
.contact-form h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; border: 1.5px solid var(--border);
  border-radius: 8px; font-size: 0.9rem; font-family: inherit;
  transition: border-color var(--transition); background: #fff;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.btn-submit {
  width: 100%; padding: 14px; border-radius: 8px; font-size: 0.95rem;
  font-weight: 600; color: #fff; cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border: none; transition: all var(--transition);
}
.btn-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.4); }

/* ===================== FOOTER ===================== */
.footer {
  background: #fff; height: 40px; line-height: 40px; padding: 0; margin-top: auto;
}
.footer.fixed {
  margin-top: 0; position: fixed; bottom: 0; left: 0; right: 0; z-index: 100;
}
.footer-bottom {
  padding: 0; text-align: center; font-size: 0.82rem;
  color: #999;
}
.footer-bottom a { color: #999; text-decoration: none; }
.footer-bottom a:hover { color: #333; }

/* BACK TO TOP */
.back-top {
  position: fixed; bottom: 30px; right: 30px; width: 44px; height: 44px;
  border-radius: 50%; background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(var(--primary-rgb), 0.4);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all var(--transition); z-index: 999; cursor: pointer;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top svg { width: 20px; height: 20px; fill: #fff; }

/* ===================== 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: 960px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-text p { margin: 0 auto 36px; }
  .hero-btns { justify-content: center; }
  .hero-visual { display: none; }
  .hero-text h1 { font-size: 2.4rem; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-item { padding: 20px 16px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .manufacturing-grid { grid-template-columns: 1fr; }
  .about-content { grid-template-columns: 1fr; }
  .about-visual { display: none; }
  .support-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .process-timeline { flex-wrap: wrap; gap: 20px; }
  .process-timeline::before { display: none; }
  .nav { display: none; position: fixed; top: 84px; left: 0; right: 0; background: #fff;
    flex-direction: column; padding: 20px; box-shadow: 0 8px 30px var(--shadow-lg);
    border-top: 1px solid var(--border); gap: 8px; height: auto; flex: none;
  }
  .nav.open { display: flex; }
  .nav a:not(.logo) { padding: 14px 16px; width: 100%; border-radius: 8px; }
  .nav .nav-search { width: 100%; padding: 8px 10px; justify-content: center; }
  .nav .lang-dropdown { width: 100%; }
  .nav .lang-dropdown-toggle { width: 100%; justify-content: space-between; }
  .mobile-toggle { display: flex; }
  .section { padding: 70px 0; }
  .section-title { font-size: 1.8rem; }
}
@media (max-width: 600px) {
  .hero-text h1 { font-size: 1.9rem; }
  .product-grid { grid-template-columns: 1fr; }
  .support-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: 1fr; }
}