/* ============================================
   卓越印务 — 公司官网样式
   ============================================ */

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

:root {
  --primary: #1a73e8;
  --primary-dark: #0d47a1;
  --primary-light: #4fc3f7;
  --accent: #ff6f00;
  --dark: #0a1628;
  --dark2: #111d35;
  --dark3: #162245;
  --gray: #6b7280;
  --gray-light: #e5e7eb;
  --gray-bg: #f8fafc;
  --white: #ffffff;
  --text: #1f2937;
  --text-light: #6b7280;
  --radius: 12px;
  --transition: 0.3s cubic-bezier(.4,0,.2,1);
  --shadow: 0 4px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);
  --max-width: 1200px;
}

html { scroll-behavior: smooth; }
body {
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  color: var(--text);
  line-height: 1.7;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button, input, select, textarea { font: inherit; }
:focus-visible {
  outline: 3px solid rgba(79,195,247,.85);
  outline-offset: 3px;
}
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-dark { background: var(--dark); color: var(--white); }
.section-dark .section-desc { color: rgba(255,255,255,.6); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 32px; border-radius: 8px; font-size: .95rem;
  font-weight: 600; border: none; cursor: pointer;
  transition: var(--transition); letter-spacing: .3px;
}
.btn-primary {
  background: var(--primary); color: var(--white);
  box-shadow: 0 4px 16px rgba(26,115,232,.3);
}
.btn-primary:hover {
  background: var(--primary-dark); transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(26,115,232,.4);
}
.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,.4);
}
.btn-outline:hover {
  border-color: var(--white); background: rgba(255,255,255,.1);
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }

/* --- Section Header --- */
.section-header {
  text-align: center; max-width: 700px; margin: 0 auto 60px;
  position: relative;
}
.section-header::after {
  content: ''; display: block;
  width: 50px; height: 3px;
  background: linear-gradient(90deg, var(--primary-light), var(--primary));
  margin: 18px auto 0;
  border-radius: 2px;
}
.section-tag {
  display: inline-block; padding: 6px 18px; border-radius: 20px;
  background: rgba(26,115,232,.1); color: var(--primary);
  font-size: .82rem; font-weight: 600; letter-spacing: 1px;
  margin-bottom: 16px;
}
.section-dark .section-tag { background: rgba(79,195,247,.15); color: var(--primary-light); }
.section-title {
  font-size: 2.2rem; font-weight: 800; line-height: 1.25;
  margin-bottom: 16px;
}
.section-dark .section-title { color: var(--white); }
.section-desc {
  font-size: 1.05rem; color: var(--text-light); line-height: 1.7;
}

/* ========== Navigation ========== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 0; transition: var(--transition);
  background: rgba(10,22,40,.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.navbar.scrolled {
  background: rgba(10,22,40,.92); backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px); padding: 10px 0;
  box-shadow: 0 2px 30px rgba(0,0,0,.15);
}
.nav-container {
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center;
  width: 206px; height: 48px;
}
.brand-logo {
  width: 100%; height: 100%; object-fit: contain;
  object-position: left center;
}
.nav-menu {
  display: flex; gap: 8px;
}
.nav-link {
  padding: 8px 14px; border-radius: 8px; color: rgba(255,255,255,.8);
  font-size: .88rem; font-weight: 500; transition: var(--transition);
  letter-spacing: .3px;
}
.nav-link:hover, .nav-link.active {
  color: var(--white);
  background: rgba(255,255,255,.12);
  transform: translateY(-1px);
}

/* Language Toggle */
.lang-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 6px 14px; border-radius: 6px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2);
  color: rgba(255,255,255,.85); font-size: .8rem; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  margin-left: 12px; letter-spacing: .3px;
  white-space: nowrap;
}
.lang-toggle:hover {
  background: rgba(255,255,255,.2);
  border-color: rgba(255,255,255,.4);
  color: var(--white);
}

/* Hamburger */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--white); border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========== Hero (Carousel) ========== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
}

/* --- Carousel Track --- */
.carousel-track {
  position: absolute; inset: 0;
  display: flex;
  transition: transform 1s cubic-bezier(.4,0,.2,1);
  will-change: transform;
}
.carousel-slide {
  min-width: 100%; height: 100%;
  position: relative;
  overflow: hidden;
}
.carousel-slide-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

/* --- Slide decorative patterns --- */
.slide-bg-pattern {
  position: absolute; inset: 0;
  pointer-events: none;
}
.slide-pattern-1::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(26,115,232,.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(79,195,247,.1) 0%, transparent 50%);
}
.slide-pattern-2::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(52,211,153,.12) 0%, transparent 55%),
    radial-gradient(ellipse at 20% 80%, rgba(79,195,247,.1) 0%, transparent 50%);
}
.slide-pattern-3::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 50% 20%, rgba(167,139,250,.12) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(79,195,247,.08) 0%, transparent 50%);
}

/* Overlay for readability */
.carousel-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(4,13,28,.62) 0%, rgba(4,13,28,.18) 48%, rgba(4,13,28,.04) 100%);
  z-index: 1;
  pointer-events: none;
}

/* --- Hero Content (above carousel) --- */
.hero-content {
  position: relative; z-index: 2;
  padding: 120px 0 100px; max-width: 720px;
}
.hero-content .hero-title {
  font-size: 3rem;
}
@media (max-width: 768px) {
  .hero-content .hero-title { font-size: 2rem; }
  .hero-content .hero-subtitle { font-size: .95rem; }
}

/* Text slides that fade in/out */
.hero-text-slide {
  display: none;
  animation: heroFadeIn .8s ease forwards;
}
.hero-text-slide.active {
  display: block;
}
@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-title {
  font-size: 3.2rem; font-weight: 800; color: #ffffff;
  line-height: 1.2; margin-bottom: 20px;
  text-shadow: 0 3px 40px rgba(0,0,0,.7), 0 0 12px rgba(0,0,0,.5);
}
.highlight {
  background: linear-gradient(135deg, #60b5ff, #2196f3);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 30px rgba(33,150,243,.3);
}
.hero-subtitle {
  font-size: 1.1rem; color: rgba(255,255,255,.8);
  line-height: 1.7; margin-bottom: 36px; max-width: 560px;
  text-shadow: 0 1px 12px rgba(0,0,0,.35);
}
.hero-buttons { display: flex; gap: 16px; }

/* --- Carousel Dots --- */
.carousel-dots {
  display: flex; gap: 12px;
  margin-top: 48px;
}
.dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: rgba(255,255,255,.3);
  cursor: pointer; transition: var(--transition);
}
.dot.active {
  background: var(--white);
  box-shadow: 0 0 8px rgba(255,255,255,.4);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,.4); font-size: .8rem; letter-spacing: 1px;
}
.scroll-arrow {
  width: 20px; height: 20px; border-right: 2px solid rgba(255,255,255,.3);
  border-bottom: 2px solid rgba(255,255,255,.3);
  transform: rotate(45deg); animation: scrollBounce 2s infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translate(0,0); opacity: .4; }
  50% { transform: rotate(45deg) translate(4px,4px); opacity: 1; }
}

/* ========== Stats ========== */
.stats-bar {
  background: var(--white); padding: 60px 0;
  border-bottom: 1px solid var(--gray-light);
}
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.stat-item { text-align: center; }
.stat-number {
  font-size: 2.8rem; font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-plus, .stat-percent { font-size: 1.8rem; font-weight: 700; background: linear-gradient(135deg, var(--primary-light), var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { margin-top: 8px; color: var(--text-light); font-size: .95rem; }

/* ========== About ========== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center;
}
.about-image { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--dark3); }
.about-image img {
  width: 100%; height: auto; display: block;
}

/* About carousel */
.about-carousel {
  position: relative; border-radius: var(--radius);
  overflow: hidden; aspect-ratio: 4/3; background: var(--dark3);
}
.about-carousel-track {
  display: flex; width: 100%; height: 100%;
  transition: transform .5s cubic-bezier(.4,0,.2,1);
}
.about-carousel-slide {
  min-width: 100%; height: 100%; flex-shrink: 0;
}
.about-carousel-slide img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.about-carousel-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(0,0,0,.5); color: #fff; border: none;
  font-size: 1.5rem; cursor: pointer; display: flex;
  align-items: center; justify-content: center;
  transition: var(--transition); z-index: 2;
}
.about-carousel-btn:hover { background: rgba(0,0,0,.8); }
.about-carousel-prev { left: 12px; }
.about-carousel-next { right: 12px; }
.about-carousel-dots {
  position: absolute; bottom: 12px; left: 50%;
  transform: translateX(-50%); display: flex; gap: 8px; z-index: 2;
}
.about-carousel-dots .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,.4); cursor: pointer;
  transition: var(--transition);
}
.about-carousel-dots .dot.active { background: var(--white); }

.about-text h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 16px; }
.about-text p { margin-bottom: 16px; color: var(--text-light); line-height: 1.8; }
.about-features { margin-top: 8px; }
.about-features li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 8px 0; color: var(--text); font-weight: 500;
}
.about-features .check { color: var(--primary); font-weight: 700; }

/* ========== Technology ========== */
.tech-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 24px;
  margin-bottom: 60px;
}
.tech-card {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius); padding: 32px 24px;
  transition: var(--transition);
}
.tech-card:hover {
  background: rgba(255,255,255,.08); transform: translateY(-4px);
  border-color: rgba(79,195,247,.2);
}
.tech-icon {
  width: 48px; height: 48px; margin-bottom: 20px;
  color: var(--primary-light);
}
.tech-icon svg { width: 100%; height: 100%; }
.tech-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 16px; color: var(--white); }
.tech-card ul li {
  padding: 4px 0; color: rgba(255,255,255,.65); font-size: .9rem;
  position: relative; padding-left: 14px;
}
.tech-card ul li::before {
  content: '›'; position: absolute; left: 0; color: var(--primary-light);
  font-weight: 700;
}

/* Equipment Table */


/* ========== Products ========== */
.products-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 24px;
}
.product-card {
  background: var(--white); border: 1px solid var(--gray-light);
  border-radius: var(--radius); overflow: hidden;
  transition: var(--transition);
}
.product-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.product-img {
  position: relative; aspect-ratio: 200/140; overflow: hidden;
}
.product-img img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
}
.product-img.product-img-contain img { object-fit: contain; }
.product-img.product-img-battery { background: #111b2d; }
.product-img svg { width: 100%; height: 100%; }
.product-img-label {
  position: absolute; top: 12px; left: 12px;
  font-size: 1.3rem;
  background: rgba(0,0,0,.5);
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
}
.product-card h3 {
  font-size: 1.1rem; font-weight: 700; padding: 16px 20px 0; color: var(--text);
}
.product-card p {
  padding: 8px 20px 20px; color: var(--text-light);
  font-size: .9rem; line-height: 1.7;
}

/* ========== CTA ========== */
/* ========== News Section ========== */
.news-grid {
  display: grid; grid-template-columns: repeat(auto-fit,minmax(240px,1fr)); gap: 24px;
}
.news-card {
  background: var(--white); border: 1px solid var(--gray-light);
  border-radius: var(--radius); padding: 28px 24px;
  transition: var(--transition);
}
.news-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.news-card-link { display: block; text-decoration: none; }
.news-read-more {
  display: inline-flex; margin-top: 16px; color: var(--primary);
  font-size: .86rem; font-weight: 700;
}
.news-read-more::after { content: ' ›'; margin-left: 4px; }
.news-date {
  font-size: .82rem; color: var(--primary); font-weight: 600;
  margin-bottom: 12px;
}
.news-card h3 {
  font-size: 1rem; font-weight: 700; margin-bottom: 8px;
  color: var(--text); line-height: 1.5;
}
.news-card p {
  font-size: .88rem; color: var(--text-light); line-height: 1.7;
}

/* ========== Tech Sharing ========== */
.techshare-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 24px;
}
.techshare-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius); padding: 32px 24px;
  text-align: center; transition: var(--transition);
}
.techshare-card:hover {
  background: rgba(255,255,255,.08); transform: translateY(-4px);
}
.techshare-icon {
  font-size: 2rem; margin-bottom: 16px;
}
.techshare-card h3 {
  font-size: 1.05rem; font-weight: 700; margin-bottom: 10px;
  color: var(--white);
}
.techshare-card p {
  font-size: .88rem; color: rgba(255,255,255,.6); line-height: 1.7;
}

/* ========== Quote Section ========== */
#quote { color: var(--text) !important; }
#quote .section-title { color: var(--text) !important; }
#quote .section-tag { background: rgba(26,115,232,.1); color: var(--primary) !important; }
#quote .section-desc { color: var(--text-light) !important; }
#quote *, #quote *::before, #quote *::after { color: inherit; }
.quote-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  align-items: start; max-width: 1000px; margin: 0 auto;
}
.quote-form-wrap {
  background: var(--white); border: 1px solid var(--gray-light);
  border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow);
}
.quote-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.quote-form .form-group { margin-bottom: 0; }
.quote-form label { display: block; margin-bottom: 6px; font-size: .85rem; font-weight: 600; color: var(--text) !important; }
.quote-form .hint { font-weight: 400; color: var(--text-light); font-size: .78rem; }
.quote-form input, .quote-form select {
  width: 100%; padding: 10px 14px; border-radius: 8px;
  border: 1px solid var(--gray-light);
  background: var(--gray-bg);
  color: #212121; font-size: .95rem; transition: var(--transition);
}
.quote-form input:focus, .quote-form select:focus {
  outline: none; border-color: #4fc3f7;
  box-shadow: 0 0 0 3px rgba(79,195,247,.3);
}
.quote-form input::placeholder { color: #9e9e9e; }
.quote-form select { background: #ffffff; }
.quote-form select option { background: #fff; color: #212121; }
.radio-group { display: flex; gap: 20px; padding-top: 4px; }
.radio-label { display: flex; align-items: center; gap: 6px; cursor: pointer; font-size: .9rem; color: var(--text) !important; }
.radio-label input[type="radio"] { width: auto; accent-color: #4fc3f7; }
.btn-full { width: 100%; margin-top: 8px; }
.quote-form-status {
  min-height: 22px;
  margin: -2px 0 10px;
  color: #9a5a00 !important;
  font-size: .84rem;
  line-height: 1.5;
}

/* Quote result */
.quote-result-wrap {
  background: var(--white); border: 1px solid var(--gray-light);
  border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow);
}
.quote-result-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.quote-result-header h3 { font-size: 1.2rem; font-weight: 700; color: var(--text) !important; }
.quote-grade-badge {
  padding: 4px 14px; border-radius: 20px; font-size: .78rem; font-weight: 600;
}
.quote-grade-sample { background: rgba(255,152,0,.2); color: #ffb74d; }
.quote-grade-small { background: rgba(76,175,80,.15); color: #81c784; }
.quote-grade-medium { background: rgba(33,150,243,.15); color: #64b5f6; }
.quote-grade-large { background: rgba(156,39,176,.15); color: #ce93d8; }
.quote-grade-mega { background: rgba(244,67,54,.15); color: #e57373; }
.quote-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.quote-price-main {
  background: rgba(26,115,232,.15); border: 1px solid rgba(26,115,232,.2);
  border-radius: 12px; padding: 20px; text-align: center;
}
.quote-price-label { display: block; font-size: .82rem; color: var(--text-light); margin-bottom: 4px; }
.quote-price-value {
  font-size: 2rem; font-weight: 800; color: #4fc3f7;
}
.quote-price-unit { font-size: .82rem; color: var(--text-light); }
.quote-detail h4, .quote-params h4 {
  font-size: 1rem; font-weight: 700; margin-bottom: 12px;
  color: #ffffff !important;
}
.quote-detail { margin-bottom: 20px; }
.quote-detail-table { width: 100%; border-collapse: collapse; }
.quote-detail-table td {
  padding: 8px 12px; border-bottom: 1px solid rgba(255,255,255,.1);
  font-size: .88rem; color: #ffffff !important;
}
.quote-detail-table td:first-child { color: var(--text-light) !important; }
.quote-detail-table td:last-child { text-align: right; font-weight: 600; color: var(--text) !important; }
.quote-detail-table tr:last-child td { border-bottom: none; font-weight: 700; font-size: .95rem; color: var(--primary) !important; }

/* Quote detail rows */
.quote-detail { margin-bottom: 16px; }
.quote-detail-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px; border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: .9rem;
}
.quote-detail-row:last-child { border-bottom: none; }
.quote-detail-row span:first-child { color: var(--text-light); }
.quote-detail-row span:last-child { font-weight: 600; color: var(--text); }

.quote-status {
  padding: 10px 12px; border-radius: 8px;
  font-size: .85rem; font-weight: 600; text-align: center;
  margin-bottom: 8px;
}

.quote-note { margin-top: 16px; padding: 12px; border-radius: 8px; background: rgba(255,152,0,.1); }
.quote-note p { font-size: .82rem; color: #9a5a00; line-height: 1.5; }
.quote-contact-btn { margin-top: 16px; }

@media (max-width: 768px) {
  .quote-grid { grid-template-columns: 1fr; }
  .quote-form .form-row { grid-template-columns: 1fr; }
  .quote-summary { grid-template-columns: 1fr; }
}

/* ========== Contact ========== */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 48px;
}
.contact-info { display: flex; flex-direction: column; gap: 28px; }
.contact-item {
  display: flex; gap: 16px; align-items: flex-start;
}
.contact-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px; background: rgba(26,115,232,.1);
  color: var(--primary);
}
.contact-icon svg { width: 22px; height: 22px; }
.contact-item h4 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.contact-item p { color: var(--text-light); font-size: .92rem; }
.contact-link { color: var(--primary); }
.contact-link:hover { text-decoration: underline; }

/* QR Code in Contact */
.contact-qr-item { align-items: flex-start; }
.contact-qr-item > div:last-child { flex: 1; }
.qr-row {
  display: flex; gap: 24px; margin-top: 8px;
  flex-wrap: wrap;
}
.qr-block { text-align: center; }
.qr-block p {
  font-size: .85rem; color: var(--text-light);
  margin-bottom: 6px; font-weight: 500;
}
.qr-wrapper {
  width: 160px; height: 160px;
  border-radius: 12px; overflow: hidden;
  border: 2px solid var(--gray-light);
  background: #fff;
  display: flex; align-items: center; justify-content: center;
}
.qr-image {
  max-width: 100%; max-height: 100%;
  width: auto; height: auto;
  display: block;
}

/* Contact Form */
.contact-form {
  background: var(--white); padding: 36px; border-radius: var(--radius);
  box-shadow: var(--shadow-lg); border: 1px solid var(--gray-light);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: .9rem; font-weight: 600;
  margin-bottom: 6px; color: var(--text);
}
.form-group input, .form-group textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--gray-light);
  border-radius: 8px; font-size: .95rem; font-family: inherit;
  transition: var(--transition); background: var(--gray-bg);
  outline: none;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,115,232,.15);
  background: var(--white);
}
.form-group textarea { resize: vertical; }
.form-honeypot {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}
.btn-submit { width: 100%; }
.form-note {
  text-align: center; margin-top: 12px;
  font-size: .8rem; color: var(--text-light);
}

.mobile-contact-bar { display: none; }

/* ========== Footer ========== */
.footer {
  background: var(--dark); color: rgba(255,255,255,.7);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px; padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.footer-brand-logo {
  display: block; width: 240px; max-width: 100%; height: auto;
  margin-bottom: 16px;
}
.footer-brand p { font-size: .9rem; line-height: 1.7; }
.footer-links h4, .footer-contact h4 {
  color: var(--white); font-size: .95rem; font-weight: 600;
  margin-bottom: 16px;
}
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul li a {
  font-size: .9rem; transition: var(--transition); color: rgba(255,255,255,.6);
}
.footer-links ul li a:hover { color: var(--primary-light); }
.footer-contact p { font-size: .9rem; margin-bottom: 8px; }
.footer-bottom {
  padding: 24px 0; text-align: center; font-size: .85rem;
  color: rgba(255,255,255,.4);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .tech-grid, .products-grid, .news-grid, .techshare-grid {
    grid-template-columns: repeat(2,1fr);
  }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
  .section-title { font-size: 1.6rem; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 32px; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .tech-grid, .products-grid, .news-grid, .techshare-grid { grid-template-columns: 1fr; }

  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-content h2 { font-size: 1.5rem; }

  /* Mobile nav */
  .nav-toggle { display: flex; margin-left: 10px; }
  .lang-toggle { margin-left: auto; margin-right: 12px; }
  .nav-logo { width: 180px; height: 44px; }
  .nav-menu {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: var(--dark2); flex-direction: column;
    padding: 80px 24px 24px; transition: var(--transition);
    box-shadow: -4px 0 20px rgba(0,0,0,.3);
  }
  .nav-menu.open { right: 0; }
  .nav-link { padding: 14px 16px; font-size: 1rem; }

  .hero {
    min-height: 760px;
    align-items: flex-start;
  }
  .hero-content {
    width: 100%;
    padding: 170px 24px 120px;
    text-align: center;
  }
  .hero-text-slide.active {
    width: fit-content;
    max-width: 100%;
    margin: 0 auto 22px;
    padding: 14px 18px;
    border-radius: 14px;
    background: rgba(4,13,28,.62);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
  }
  .hero-title {
    max-width: 340px;
    margin: 0 auto;
    line-height: 1.25;
    text-shadow: 0 3px 18px rgba(0,0,0,.85);
  }
  .hero-title .highlight {
    background: none;
    color: #6ec8ff;
    -webkit-text-fill-color: #6ec8ff;
  }
  .hero-buttons { justify-content: center; }
  .carousel-overlay {
    background: linear-gradient(180deg, rgba(4,13,28,.28) 0%, rgba(4,13,28,.46) 35%, rgba(4,13,28,.08) 72%);
  }
  .carousel-dots { justify-content: center; margin-top: 28px; }
  .scroll-indicator { display: none; }

  body { padding-bottom: 58px; }
  .mobile-contact-bar {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 1200;
    display: grid; grid-template-columns: repeat(3, 1fr);
    background: var(--dark); box-shadow: 0 -4px 20px rgba(0,0,0,.2);
  }
  .mobile-contact-bar a {
    display: flex; align-items: center; justify-content: center;
    min-height: 58px; color: var(--white); font-size: .88rem; font-weight: 600;
    border-right: 1px solid rgba(255,255,255,.12);
  }
  .mobile-contact-bar a:nth-child(2) { background: var(--primary); }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .nav-logo { width: 158px; height: 42px; }
  .lang-toggle { padding: 6px 10px; margin-right: 8px; }
  .hero-content { padding: 165px 18px 110px; }
  .hero-title { font-size: 2rem; }
  .hero-buttons { flex-direction: column; gap: 12px; }
  .hero-buttons .btn { width: min(100%, 280px); margin: 0 auto; }
  .contact-form { padding: 24px; }
  .quote-form-wrap, .quote-result-wrap { padding: 22px; }
}

/* ========== Animations ========== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion) {
  .fade-in { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
  .carousel-track, .hero-text-slide { transition: none; animation: none; }
}