/* ===== CSS Reset & Variables ===== */
:root {
  --primary: #002b5c;
  --primary-light: #004d99;
  --primary-glow: rgba(0,75,153,0.15);
  --accent: #e8a317;
  --accent-light: #f0c040;
  --accent-dark: #c88a0e;
  --dark: #0f172a;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 24px rgba(0,0,0,0.07);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.14);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
  --transition-fast: all 0.2s ease;
  --font: 'Microsoft YaHei', 'PingFang SC', -apple-system, 'Helvetica Neue', Arial, sans-serif;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  color: var(--dark);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--primary); }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-400); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

a { text-decoration: none; color: inherit; transition: var(--transition-fast); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1400px; margin: 0 auto; padding: 0 24px; width: 100%;}

/* ===== Header ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(0,43,92,0.92);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  transition: var(--transition);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header.scrolled {
  background: rgba(0,43,92,0.98);
  box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 90px; flex-wrap: nowrap;
}
.logo { display: flex; align-items: center; gap: 14px; color: var(--white); }
.logo-img {
  width: 56px; height: 32px;
  object-fit: contain;
  border-radius: 4px;
}
.logo-text { font-size: 21px; font-weight: 800; letter-spacing: 1px; }
.logo-sub { font-size: 10px; color: rgba(255,255,255,0.55); letter-spacing: 3px; font-weight: 500; }

.nav { display: flex; gap: 2px; flex-wrap: nowrap; overflow: visible; }
.nav a {
  color: rgba(255,255,255,0.78);
  padding: 8px 12px; border-radius: 8px;
  font-size: 15px; font-weight: 500;
  position: relative; letter-spacing: 0.3px;
  white-space: nowrap;
}
.nav a:hover { color: var(--white); background: rgba(255,255,255,0.1); }
.nav a.active { color: var(--white); background: rgba(255,255,255,0.12); }
.nav a.active::after {
  content: ''; position: absolute;
  bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 2px;
}

  /* ===== Nav Mega Menu (产品中心 整屏下拉) ===== */
  .nav-item { position: relative; display: flex; align-items: center; }
  .nav-item > a { display: flex; align-items: center; gap: 5px; }
  .caret {
    width: 0; height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid rgba(255,255,255,0.6);
    transition: transform 0.3s, border-top-color 0.3s;
  }
  .nav-item.has-mega:hover .caret,
  .nav-item.has-dropdown:hover .caret { transform: rotate(180deg); border-top-color: var(--accent); }
  .mega-menu {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: linear-gradient(180deg, rgba(0,43,92,0.98), rgba(0,28,60,0.98));
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(232,163,23,0.3);
    box-shadow: 0 24px 60px rgba(0,0,0,0.4);
    padding: 38px 0 44px;
    z-index: 999;
    opacity: 0; visibility: hidden;
    transform: translateY(14px);
    transition: opacity 0.3s cubic-bezier(.4,0,.2,1), transform 0.3s cubic-bezier(.4,0,.2,1), visibility 0.3s;
  }
  .mega-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .mega-inner { display: flex; gap: 48px; }
  .mega-col { flex: 1; min-width: 0; }
  .mega-cat {
    display: flex; align-items: center; gap: 8px;
    font-size: 17px; font-weight: 700; color: var(--accent);
    padding-bottom: 14px; margin-bottom: 14px;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    transition: color 0.2s;
  }
  .mega-cat:hover { color: var(--accent-light); }
  .mega-col ul { list-style: none; display: flex; flex-direction: column; gap: 1px; }
  .mega-col li a {
    display: block; padding: 8px 12px; border-radius: 8px;
    color: rgba(255,255,255,0.8); font-size: 15px;
    transition: background 0.2s, color 0.2s, padding-left 0.2s;
  }
  .mega-col li a:hover { background: rgba(255,255,255,0.1); color: #fff; padding-left: 18px; }

  .dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: rgba(0,43,92,0.98);
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.32);
    padding: 10px;
    z-index: 999;
    opacity: 0; visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s cubic-bezier(.4,0,.2,1), transform 0.3s cubic-bezier(.4,0,.2,1), visibility 0.3s;
  }
  .dropdown.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .dropdown a {
    display: block; padding: 11px 16px; border-radius: 8px;
    color: rgba(255,255,255,0.85); font-size: 15px;
    transition: background 0.2s, color 0.2s, padding-left 0.2s;
  }
  .dropdown a:hover { background: rgba(255,255,255,0.1); color: #fff; padding-left: 22px; }

  @media (max-width: 768px) {
    /* 手机端：mega 菜单不绝对定位，作为导航内可展开的子面板 */
    .mega-menu {
      display: none;
      position: static;
      opacity: 1;
      visibility: visible;
      transform: none;
      background: transparent;
      box-shadow: none;
      border-radius: 0;
      padding: 0;
      margin: 0;
    }
    .mega-menu.open { display: block; }
  }

  .header-right { display: flex; align-items: center; gap: 12px; }
.lang-switch { display: flex; gap: 3px; }
.lang-btn {
  padding: 4px 10px; border-radius: 6px; font-size: 14px; font-weight: 600;
  color: rgba(255,255,255,0.6); border: 1px solid rgba(255,255,255,0.15);
  background: transparent; cursor: pointer; transition: var(--transition-fast);
}
.lang-btn.active, .lang-btn:hover {
  background: var(--accent); color: var(--primary); border-color: var(--accent);
}
.phone-icon { color: var(--accent); font-size: 16px; font-weight: 600; letter-spacing: 0.5px; display: flex; align-items: center; gap: 6px; }
.phone-icon img { width: 16px; height: 16px; display: block; }

.menu-toggle {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 8px;
}
.menu-toggle span {
  width: 22px; height: 2px; background: var(--white);
  border-radius: 2px; transition: var(--transition-fast);
}
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ===== Hero Section ===== */
.hero {
  position: relative; height: 100vh;
  overflow: hidden;
  background: var(--dark);
}
.hero-prev, .hero-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  border: none;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
  z-index: 50;
  border: 1px solid rgba(255,255,255,0.15);
}
.hero-prev { left: 30px; }
.hero-next { right: 30px; }
.hero-prev:hover, .hero-next:hover {
  background: rgba(232,163,23,0.25);
  border-color: rgba(232,163,23,0.5);
  transform: translateY(-50%) scale(1.1);
}
.hero-prev::before, .hero-next::after {
  content: '';
  width: 12px;
  height: 12px;
  border-left: 3px solid rgba(255,255,255,0.8);
  border-bottom: 3px solid rgba(255,255,255,0.8);
}
.hero-prev::before {
  transform: rotate(45deg) translateY(-25%);
}
.hero-next::after {
  transform: rotate(-135deg) translateY(-25%);
}
.hero-prev:hover::before, .hero-next:hover::after {
  border-color: var(--accent);
}
.hero-slider { position: relative; width: 100%; height: 100%; }
.hero-slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity 1.4s cubic-bezier(.4,0,.2,1);
  will-change: opacity;
  pointer-events: none;
}
.hero-slide.active { opacity: 1; pointer-events: auto; }
.hero-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.08);
  transition: transform 10s cubic-bezier(.25,.46,.45,.94);
  filter: brightness(0.85) contrast(1.05);
}
.hero-slide.active img { transform: scale(1); }
.hero-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center;
  /* Multi-layer overlay for depth */
  background:
    linear-gradient(135deg, rgba(0,30,60,0.93) 0%, rgba(0,20,45,0.65) 40%, rgba(0,35,70,0.5) 70%, rgba(0,43,92,0.7) 100%),
    radial-gradient(ellipse at 80% 30%, rgba(232,163,23,0.08) 0%, transparent 60%);
}
/* Decorative elements */
.hero-overlay::before {
  content: ''; position: absolute;
  top: -15%; right: -8%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(232,163,23,0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: float-slow 20s ease-in-out infinite;
}
.hero-overlay::after {
  content: ''; position: absolute;
  bottom: -25%; left: 5%;
  width: 400px; height: 400px;
  border: 1.5px solid rgba(255,255,255,0.04);
  border-radius: 50%;
  animation: float-slow 25s ease-in-out infinite reverse;
}
@keyframes float-slow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -20px); }
}
.hero-content { color: var(--white); max-width: 700px; position: relative; z-index: 2; }
.hero-content h1 {
  font-size: 50px; font-weight: 900;
  line-height: 1.2; margin-bottom: 22px;
  background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.88) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  filter: drop-shadow(0 2px 10px rgba(0,0,0,0.2));
}
.hero-content p {
  font-size: 17px; line-height: 1.95;
  margin-bottom: 40px; color: rgba(255,255,255,0.82);
  max-width: 580px;
  text-shadow: 0 1px 8px rgba(0,0,0,0.15);
}
.hero-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--primary); font-size: 15px; font-weight: 700;
  border-radius: 8px; transition: var(--transition);
  box-shadow: 0 6px 25px rgba(232,163,23,0.35);
  letter-spacing: 0.5px;
  position: relative; overflow: hidden;
}
.hero-btn::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.2) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}
.hero-btn:hover::before { transform: translateX(100%); }
.hero-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(232,163,23,0.5);
}
/* Hero side decoration line */
.hero-content::before {
  content: ''; position: absolute;
  left: -24px; top: 8px; bottom: 8px;
  width: 4px;
  background: linear-gradient(180deg, var(--accent), var(--accent-light), transparent);
  border-radius: 2px;
  opacity: 0.6;
}

.hero-dots {
  position: absolute; bottom: 40px;
  left: 50%; transform: translateX(-50%);
  display: flex; gap: 14px; z-index: 10;
}
.hero-dot {
  width: 40px; height: 5px; border-radius: 3px;
  background: rgba(255,255,255,0.25);
  cursor: pointer; transition: var(--transition);
  position: relative; overflow: hidden;
}
.hero-dot::after {
  content: ''; position: absolute; inset: 0;
  background: var(--accent); border-radius: 3px;
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s ease;
}
.hero-dot.active::after { transform: scaleX(1); }
.hero-dot.active { width: 52px; background: rgba(255,255,255,0.15); }

/* ===== Stats Bar ===== */
.stats-bar {
  background: linear-gradient(135deg, var(--primary) 0%, #001e3d 100%);
  padding: 48px 0;
  position: relative;
}
.stats-bar::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Ccircle cx='30' cy='30' r='1.5'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.stats-grid {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 30px; text-align: center; position: relative;
}
.stat-item { color: var(--white); }
.stat-num {
  font-size: 46px; font-weight: 900;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1;
}
.stat-num small { font-size: 24px; }
.stat-label {
  font-size: 14px; margin-top: 10px;
  color: rgba(255,255,255,0.65); letter-spacing: 1px;
}
.stat-divider {
  width: 1px; background: rgba(255,255,255,0.1);
  position: absolute; top: 10%; bottom: 10%;
}

/* ===== Section Common ===== */
.section { padding:50px 0; position: relative; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 {
  font-size: 34px; font-weight: 900;
  color: var(--primary); margin-bottom: 8px;
  letter-spacing: -0.5px;
}
.section-header .en-title {
  font-size: 12px; color: var(--gray-400);
  text-transform: uppercase; letter-spacing: 4px;
  margin-bottom: 12px; font-weight: 600;
}
.section-header p {
  font-size: 15px; color: var(--gray-500);
  max-width: 580px; margin: 0 auto; line-height: 1.7;
}
.divider {
  width: 48px; height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  margin: 14px auto; border-radius: 2px;
}

/* ===== Product Categories (Home) ===== */
.product-cats { background: var(--gray-50); }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cat-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: var(--transition); cursor: pointer;
  border: 1px solid var(--gray-200);
}
.cat-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}
.cat-card-img {
  height: 230px; overflow: hidden;
  background: linear-gradient(135deg, #eef2f7, #dde4ed);
  position: relative;
}
.cat-card-img::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 60px;
  background: linear-gradient(transparent, rgba(255,255,255,0.8));
}
.cat-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.cat-card:hover .cat-card-img img { transform: scale(1.1); }
.cat-card-body { padding: 28px; }
.cat-card-body h3 {
  font-size: 20px; font-weight: 800;
  color: var(--primary); margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.cat-card-body p {
  font-size: 13.5px; color: var(--gray-500);
  line-height: 1.75; margin-bottom: 16px;
}
.cat-card-body .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.cat-card-body .tag {
  padding: 4px 12px;
  background: var(--primary-glow);
  color: var(--primary); font-size: 12px;
  border-radius: 20px; font-weight: 500;
}
.cat-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent-dark); font-weight: 700; font-size: 13.5px;
  margin-top: 14px; letter-spacing: 0.3px;
}
.cat-link:hover { gap: 10px; color: var(--accent); }

/* ===== Solutions Section ===== */
.solutions-section { background: var(--white); }
.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sol-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: var(--transition); border: 1px solid var(--gray-200);
  display: flex; flex-direction: column;
}
.sol-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.sol-card-img {
  height: 180px;
  background: linear-gradient(135deg, #eef2f7, #dde4ed);
  overflow: hidden;
}
.sol-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.sol-card:hover .sol-card-img img { transform: scale(1.08); }
.sol-card-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.sol-card-body h3 {
  font-size: 18px; font-weight: 900;
  color: var(--primary); margin-bottom: 12px;
  letter-spacing: -0.2px;
}
.sol-card-body p {
  font-size: 13.5px; color: var(--gray-500);
  line-height: 1.75; margin-bottom: 16px;
  flex: none;
}
.sol-features {
  margin-bottom: 20px; padding-left: 0;
}
.sol-features li {
  font-size: 12.5px; color: var(--gray-600);
  padding: 5px 0 5px 22px;
  position: relative; list-style: none;
  line-height: 1.6;
}
.sol-features li::before {
  content: '•'; position: absolute; left: 0;
  color: var(--accent); font-weight: bold;
}
.sol-card .hero-btn {
  margin-top: auto;
  width: 100%;
  text-align: center;
}
.solutions-more {
  text-align: center;
  margin-top: 36px;
}

/* ===== About Preview ===== */
.about-preview {
  background: linear-gradient(135deg, var(--primary) 0%, #001a33 60%, #002040 100%);
  color: var(--white); position: relative; overflow: hidden;
}
.about-preview::before {
  content: ''; position: absolute;
  top: -20%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(232,163,23,0.06) 0%, transparent 70%);
  border-radius: 50%;
}
.about-preview::after {
  content: ''; position: absolute;
  bottom: -30%; left: -5%;
  width: 400px; height: 400px;
  border: 1px solid rgba(255,255,255,0.03);
  border-radius: 50%;
}
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
}
.about-text h2 {
  font-size: 34px; font-weight: 900;
  margin-bottom: 24px; letter-spacing: -0.5px;
}
.about-text p {
  font-size: 15px; line-height: 1.95;
  color: rgba(255,255,255,0.78); margin-bottom: 16px;
}
.about-img {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255,255,255,0.1);
}
.about-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

/* ===== Certifications ===== */
.cert-section { background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%); padding-bottom: 60px; }
.cert-carousel-wrapper {
  overflow: hidden;
  position: relative;
  margin-top: 20px;
  padding: 0 48px;
}
.cert-carousel {
  display: flex;
  gap: 28px;
  animation: certScroll 40s linear infinite;
}
.cert-carousel:hover {
  animation-play-state: paused;
}
@keyframes certScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}
.cert-item {
  flex: 0 0 calc((100% - 84px) / 4);
  background: var(--white);
  border-radius: 16px;
  padding: 0;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 380px;
}
.cert-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  transform: scaleX(0);
  transition: transform 0.4s ease;
}
.cert-item:hover::before {
  transform: scaleX(1);
}
.cert-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(232,163,23,0.3);
}
.cert-item.cert-item-active {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 50px rgba(0,43,92,0.15);
  border-color: rgba(232,163,23,0.4);
}
.cert-item.cert-item-active::before {
  transform: scaleX(1);
}
.cert-item.cert-item-active img {
  transform: scale(1.08);
}
.cert-item img {
  width: 100%;
  flex: 1;
  object-fit: contain;
  margin: 0;
  padding: 16px 16px 4px;
  border-radius: 0;
  background: var(--gray-50);
  transition: transform 0.35s;
}
.cert-item:hover img {
  transform: scale(1.05);
}
.cert-item h4 {
  font-size: 14px;
  color: var(--dark);
  font-weight: 700;
  line-height: 1.4;
  padding: 12px 20px 28px !important;
  margin: 0;
  background: var(--white);
  flex-shrink: 0;
  margin-top: 8px;
}
.cert-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.8);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
}
.cert-nav:hover {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-color: transparent;
  box-shadow: 0 10px 30px rgba(0,43,92,0.3);
  transform: translateY(-50%) scale(1.12);
}
.cert-nav::before {
  content: '';
  width: 12px;
  height: 12px;
  border-left: 3px solid var(--gray-600);
  border-bottom: 3px solid var(--gray-600);
  transition: all 0.3s ease;
}
.cert-nav-left::before {
  transform: rotate(45deg);
}
.cert-nav-right::before {
  transform: rotate(-45deg);
  border-left: none;
  border-right: 3px solid var(--gray-600);
}
.cert-nav:hover::before {
  border-color: var(--white);
}
.cert-nav-left {
  left: 0;
}
.cert-nav-right {
  right: 0;
}

@media (max-width: 1024px) {
  .cert-carousel-wrapper {
    padding: 0 36px;
  }
  .cert-item {
    flex: 0 0 calc((100% - 56px) / 3);
    height: 280px;
  }
  .cert-nav {
    width: 44px;
    height: 44px;
  }
  .cert-nav-left {
    left: 0;
  }
  .cert-nav-right {
    right: 0;
  }
}
@media (max-width: 768px) {
  .cert-carousel-wrapper {
    padding: 0 28px;
  }
  .cert-item {
    flex: 0 0 calc((100% - 28px) / 2);
    height: 220px;
  }
  .cert-nav {
    width: 40px;
    height: 40px;
  }
  .cert-nav-left {
    left: 0;
  }
  .cert-nav-right {
    right: 0;
  }
}

/* ===== Partners ===== */
.partners-section { background: var(--white); }
.partners-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.partners-container {
  width: 100%;
  overflow: hidden;
  position: relative;
}
.partners-grid {
  display: flex;
  flex-wrap: nowrap;
  gap: 16px;
  transition: transform 0.5s ease;
}
.partner-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex-shrink: 0;
}
.partner-img {
  width: calc((100vw - 200px) / 6);
  max-width: 140px;
  min-width: 70px;
  height: 72px;
  object-fit: contain;
  background: var(--white);
  border-radius: var(--radius);
  padding: 12px;
  transition: var(--transition);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-xs);
}
.partner-img:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(232,163,23,0.3);
}
.partner-swiper .swiper-wrapper { align-items: stretch; }
.partner-swiper .swiper-slide {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 92px;
}
.partner-swiper .partner-img {
  width: 100%;
  max-width: 150px;
  height: 64px;
  object-fit: contain;
  background: var(--white);
  border-radius: var(--radius);
  padding: 10px;
  transition: var(--transition);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-xs);
}
.partner-swiper .partner-img:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(232,163,23,0.3);
}
@media (max-width: 991px) {
  .partner-swiper .swiper-slide {
    height: 84px;
  }
  .partner-swiper .partner-img {
    max-width: 130px;
    height: 56px;
  }
}
.partners-prev,
.partners-next {
  width: 48px;
  height: 48px;
  border: 1px solid var(--gray-200);
  border-radius: 50%;
  background: var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 10;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.partners-prev:hover,
.partners-next:hover {
  border-color: var(--accent);
  background: var(--accent);
  transform: scale(1.1);
}
.partners-prev::before,
.partners-next::after {
  content: '';
  width: 10px;
  height: 10px;
  border-left: 2px solid var(--gray-600);
  border-bottom: 2px solid var(--gray-600);
}
.partners-prev::before {
  transform: rotate(45deg);
}
.partners-next::after {
  transform: rotate(-135deg);
}
.partners-prev:hover::before,
.partners-next:hover::after {
  border-color: var(--white);
}

/* ===== Partners Page Section ===== */
.partners-page-section {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}
.partner-category {
  margin-bottom: 60px;
}
.partner-category:last-child {
  margin-bottom: 0;
}
.partner-cat-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--gray-200);
  position: relative;
}
.partner-cat-header::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
}
.partner-cat-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: 0 6px 20px rgba(0,43,92,0.15);
}
.partner-cat-icon img {
  width: 100%;
  height: 100%;
  padding: 8px;
  object-fit: contain;
}
.partner-cat-header h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--dark);
  margin: 0 0 4px;
}
.partner-cat-header p {
  font-size: 14px;
  color: var(--gray-500);
  margin: 0;
}
.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.partner-card {
  background: var(--white);
  border-radius: 16px;
  padding: 24px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.partner-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(232,163,23,0.3);
}
.partner-card.partner-card-active {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 20px 40px rgba(0,43,92,0.15);
  border-color: rgba(232,163,23,0.4);
  background: rgba(255,255,255,0.98);
}
.partner-card img {
  width: 80px;
  height: 60px;
  object-fit: contain;
  background: var(--gray-50);
  border-radius: 8px;
  padding: 8px;
  transition: transform 0.35s;
}
.partner-card:hover img {
  transform: scale(1.08);
}
.partner-card span {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  margin-top: auto;
}
@media (max-width: 1024px) {
  .partner-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 768px) {
  .partner-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .partner-cat-header h3 {
    font-size: 18px;
  }
  .partner-cat-icon {
    width: 48px;
    height: 48px;
    font-size: 22px;
  }
}

/* ===== Contact Section ===== */
.contact-section { background: var(--gray-50); }
.contact-cta {
  /* display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px; */
  padding: 48px 0;
}
.contact-cta p {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin: 0;
}
.contact-cta-btn {
  padding: 12px 32px;
  background: #000;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
}
.contact-cta-btn:hover {
  background: #333;
}

.detail-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid var(--gray-200);
}
.detail-nav-btn {
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.35s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.detail-nav-btn.prev, .detail-nav-btn.next {
  background: var(--white);
  color: var(--dark);
  border: 1px solid var(--gray-200);
}
.detail-nav-btn.prev:hover, .detail-nav-btn.next:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.detail-nav-btn.list {
  background: var(--accent);
  color: var(--white);
  border: none;
}
.detail-nav-btn.list:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.detail-nav-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.detail-main {
  max-width: 1000px;
  margin: 0 auto;
}
.detail-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
  align-items: center;
}
.detail-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.detail-image img {
  width: 100%;
  height: 350px;
  object-fit: cover;
}
.detail-info h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}
.detail-subtitle {
  font-size: 14px;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.detail-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}
.detail-feature-tag {
  padding: 6px 16px;
  background: rgba(0,43,92,0.06);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
  border: 1px solid rgba(0,43,92,0.1);
}
.detail-desc {
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray-600);
  margin-bottom: 24px;
}
.detail-contact-btn {
  display: inline-block;
  padding: 12px 32px;
  background: var(--accent);
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.35s;
}
.detail-contact-btn:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.detail-section {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.detail-section h2 {
  font-size: 20px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
}
.detail-params {
  width: 100%;
  border-collapse: collapse;
}
.detail-params tr {
  border-bottom: 1px solid var(--gray-100);
}
.detail-params tr:last-child {
  border-bottom: none;
}
.detail-params td {
  padding: 14px 16px;
  font-size: 14px;
}
.detail-params td:first-child {
  font-weight: 600;
  color: var(--gray-700);
  width: 25%;
  background: rgba(0,43,92,0.03);
}
.detail-params td:last-child {
  color: var(--gray-600);
}
.detail-highlights  ul{
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.detail-highlights li {
  padding: 12px 16px;
  background: rgba(232,163,23,0.06);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--gray-700);
}
.detail-applications {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.detail-app-tag {
  padding: 8px 20px;
  background: linear-gradient(135deg, rgba(0,43,92,0.08), rgba(0,43,92,0.04));
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid rgba(0,43,92,0.15);
  transition: all 0.35s;
}
.detail-app-tag:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.detail-intro, .detail-summary {
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray-600);
}
.news-category {
  display: inline-block;
  padding: 4px 14px;
  background: var(--accent);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 12px;
}
.news-date {
  font-size: 14px;
  color: var(--gray-500);
}
.news-content {
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray-600);
}
.news-content p {
  margin-bottom: 16px;
}
.news-content p:last-child {
  margin-bottom: 0;
}
.sol-product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.sol-product-card {
  background: rgba(0,43,92,0.03);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid rgba(0,43,92,0.08);
}
.sol-product-card h4 {
  font-size: 16px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
}
.sol-product-card p {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 16px;
}
.sol-product-spec {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sol-product-spec li {
  font-size: 13px;
  color: var(--gray-600);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
  text-align: left;
}
.sol-product-spec li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;}
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-card {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 16px; border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}
.contact-card:hover { background: rgba(0,43,92,0.03); }
.contact-icon {
  width: 48px; height: 48px; min-width: 48px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: var(--accent);
  box-shadow: 0 4px 12px rgba(0,43,92,0.15);
}
.contact-icon img {
  width: 100%; height: 100%;
  padding: 8px;
  object-fit: contain;
}
.value-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(0,43,92,0.15);
  margin: 0 auto;
}
.value-icon img {
  width: 100%; height: 100%;
  padding: 10px;
  object-fit: contain;
}
.contact-card h4 {
  font-size: 15px; font-weight: 700;
  color: var(--dark); margin-bottom: 4px;
}
.contact-card p {
  font-size: 13.5px; color: var(--gray-500); line-height: 1.7;white-space: pre-wrap;
}
.contact-form {
  background: var(--white); padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
}
.map-container {
  margin-top: 32px;
  margin-bottom: 32px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 12px 48px rgba(0,43,92,0.12);
  border: 2px solid rgba(255,255,255,0.8);
  width: 95%;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
}
.map-container:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,43,92,0.18);
}
.map-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent-light));
  z-index: 10;
}
.map-image {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}
.map-container:hover .map-image {
  transform: scale(1.03);
}
.map-location {
  position: absolute;
  top: 50%;
  left: 58%;
  transform: translate(-50%, -50%);
  z-index: 10;
}
.map-location-icon {
  width: 48px;
  height: 48px;
  background: var(--accent);
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(232,163,23,0.4);
  animation: mapPulse 2s ease-in-out infinite;
}
.map-location-icon::before {
  content: '';
  width: 20px;
  height: 20px;
  background: var(--white);
  border-radius: 50%;
  transform: rotate(45deg);
}
@keyframes mapPulse {
  0%, 100% {
    transform: rotate(-45deg) scale(1);
    box-shadow: 0 8px 24px rgba(232,163,23,0.4);
  }
  50% {
    transform: rotate(-45deg) scale(1.15);
    box-shadow: 0 12px 32px rgba(232,163,23,0.6);
  }
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: 13.5px; font-weight: 600;
  color: var(--gray-700); margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%; padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 14px; font-family: inherit;
  transition: var(--transition-fast);
  background: var(--white); color: var(--dark);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.btn-submit {
  width: 100%; padding: 15px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white); font-size: 15px; font-weight: 700;
  border: none; border-radius: var(--radius-sm);
  cursor: pointer; transition: var(--transition);
  letter-spacing: 0.5px;
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,43,92,0.25);
}

/* ===== Footer ===== */
.footer {
  background: linear-gradient(180deg, #002244 0%, #001a33 100%);
  color: rgba(255,255,255,0.6);
  padding: 72px 0 0;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
}
.footer::after {
  content: ''; position: absolute; top: -30%; right: -20%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(232,163,23,0.03) 0%, transparent 70%);
  border-radius: 50%;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 0.8fr;
  gap: 32px; margin-bottom: 48px;
  position: relative;
  z-index: 1;
}
.footer-brand {
  display: flex; flex-direction: column; gap: 16px;
}
.footer-logo {
  display: flex; align-items: center; gap: 14px;
  color: var(--white); text-decoration: none;
  transition: var(--transition);
}
.footer-logo:hover { opacity: 0.8; }
.footer-logo-img {
  width: 56px; height: 32px;
  object-fit: contain;
  border-radius: 4px;
}
.footer-logo-text {
  font-size: 21px; font-weight: 800;
  letter-spacing: 1px;
}
.footer-logo-sub {
  font-size: 10px; color: rgba(255,255,255,0.4);
  letter-spacing: 3px; font-weight: 500;
}
.footer h4 {
  color: var(--white); font-size: 16px;
  font-weight: 700; margin-bottom: 20px;
  letter-spacing: 0.3px;
  position: relative;
  padding-bottom: 8px;
}
.footer h4::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 32px; height: 2px;
  background: var(--accent);
  border-radius: 1px;
}
.footer p { font-size: 13.5px; line-height: 1.8; margin-bottom: 0; }
.footer-contact {
  display: flex; flex-direction: column; gap: 6px;
  font-size: 13px; color: rgba(255,255,255,0.55);
  margin-top: 12px;
  white-space: pre-wrap;
}

.footer-contact  a {
  text-decoration: none;
  color: rgba(255,255,255,0.55);
  transition: color 0.3s;
}
.footer-contact span a:hover {
  color: var(--accent);
}
.footer-wechat-col {
  display: flex; flex-direction: column;
}
.footer-wechat {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  margin-top: 16px;
  padding: 12px;
  background: rgba(255,255,255,0.03);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.05);
}
.footer-wechat .wechat-qr {
  width:90px; 
  border-radius: 8px;
  background: var(--white);
  padding: 3px;
}
.footer-wechat span {
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.5px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 13.5px; color: rgba(255,255,255,0.5);
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a::before {
  content: ''; width: 6px; height: 6px;
  background: transparent;
  border-radius: 50%;
  transition: var(--transition-fast);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-links a:hover::before {
  background: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  font-size: 12.5px;
  position: relative;
  z-index: 1;
}
.footer-bottom-left p { margin: 0; }
.footer-bottom-right {
  color: rgba(255,255,255,0.4);
}

/* ===== Page Banner ===== */
.page-banner {
  height: 200px; margin-top: 72px;
  background: var(--primary);
  background-size: cover; background-position: center;
  display: flex; align-items: center; justify-content: center;
  text-align: center; color: var(--white);
  position: relative; overflow: hidden;
}
/* Banner overlay — dark gradient + subtle pattern */
.page-banner::before {
  content: ''; position: absolute; inset: 0;
  background:
    linear-gradient(135deg, rgba(0,30,60,0.92) 0%, rgba(0,20,45,0.78) 50%, rgba(0,43,92,0.85) 100%);
  z-index: 1;
}
.page-banner::after {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(232,163,23,0.1) 0%, transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(232,163,23,0.06) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='0.03' stroke-width='1'%3E%3Cpath d='M0 0h80v80H0z'/%3E%3C/g%3E%3C/svg%3E");
  z-index: 1;
}
.page-banner > * {
  position: relative; z-index: 2;
}
/* Individual page banner backgrounds */
.page-banner.banner-products   { background-image: url('../img/banner-products.jpg'); }
.page-banner.banner-solutions  { background-image: url('../img/banner-products.jpg'); }
.page-banner.banner-news       { background-image: url('../img/banner-products.jpg'); }
.page-banner.banner-about      { background-image: url('../img/banner-products.jpg'); }
.page-banner.banner-partners   { background-image: url('../img/banner-products.jpg'); }
.page-banner.banner-contact    { background-image: url('../img/banner-products.jpg'); }

.page-banner h1 {
  font-size: 44px; font-weight: 900;
  margin-bottom: 12px; letter-spacing: -0.5px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.page-banner p {
  font-size: 15px; color: rgba(255,255,255,0.65);
  letter-spacing: 3px; font-weight: 500;
  text-shadow: 0 1px 8px rgba(0,0,0,0.2);
}
/* Breadcrumb */
.breadcrumb {
  position: absolute; top: 28px; left: 28px;
  display: flex; gap: 8px; font-size: 13px;
  color: rgba(255,255,255,0.4); z-index: 3;
  background: rgba(0,0,0,0.2);
  padding: 6px 14px; border-radius: 20px;
  backdrop-filter: blur(8px);
}
.breadcrumb a { color: rgba(255,255,255,0.6); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: rgba(255,255,255,0.3); }

/* ===== Products Page ===== */
/* Product filter tabs */
.product-tabs {
  display: flex; justify-content: center;
  gap: 8px; margin-bottom: 40px; flex-wrap: wrap;
}
.product-tab {
  padding: 10px 24px; border-radius: 30px;
  font-size: 14px; font-weight: 600;
  color: var(--gray-600); background: var(--gray-100);
  border: 1.5px solid transparent;
  cursor: pointer; transition: var(--transition-fast);
}
.product-tab:hover { color: var(--primary); border-color: var(--primary-glow); }
.product-tab.active {
  background: var(--primary); color: var(--white);
  border-color: var(--primary);
  box-shadow: 0 4px 15px rgba(0,43,92,0.2);
}

.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}
.product-card-img {
  height: 240px; overflow: hidden;
  background: linear-gradient(135deg, #eef2f7, #dde4ed);
  position: relative;
}
.product-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4,0,0.2,1);
}
.product-card:hover .product-card-img img { transform: scale(1.08); }
.product-card-body { padding: 22px; }
.product-card-body h3 {
  font-size: 17px; font-weight: 800;
  color: var(--primary); margin-bottom: 8px;
}
.product-card-body p {
  font-size: 13px; color: var(--gray-500);
  line-height: 1.7; margin-bottom: 14px;
}
.product-card-body .specs { display: flex; flex-wrap: wrap; gap: 5px; }
.product-card-body .spec-tag {
  padding: 3px 10px;
  background: var(--primary-glow);
  color: var(--primary); font-size: 11px;
  border-radius: 20px; font-weight: 500;
}
.product-detail-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  transition: all 0.3s ease;
}
.product-detail-link:hover {
  color: var(--accent-light);
  padding-left: 8px;
}

/* ===== Solutions Page ===== */
.sol-detail-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow);
  margin-bottom: 36px;
  display: grid; grid-template-columns: 1fr 1fr;
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}
.sol-detail-card:hover {
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}
.sol-detail-card:nth-child(even) { direction: rtl; }
.sol-detail-card:nth-child(even) > * { direction: ltr; }
.sol-detail-img {
  min-height: 320px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 60px; color: rgba(255,255,255,0.3);
  overflow: hidden;
}
.sol-detail-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.sol-detail-card:hover .sol-detail-img img { transform: scale(1.05); }
.sol-detail-body {
  padding: 44px; display: flex;
  flex-direction: column; justify-content: center;
}
.sol-detail-body h3 {
  font-size: 24px; font-weight: 900;
  color: var(--primary); margin-bottom: 16px;
  letter-spacing: -0.3px;
}
.sol-detail-body p {
  font-size: 14.5px; color: var(--gray-500);
  line-height: 1.85; margin-bottom: 18px;
}
.sol-detail-body ul { margin-bottom: 24px; }
.sol-detail-body ul li {
  font-size: 13.5px; color: var(--gray-700);
  padding: 7px 0 7px 24px;
  position: relative; line-height: 1.6;
}
.sol-detail-body ul li::before {
  content: ''; position: absolute; left: 0; top: 14px;
  width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

/* ===== Solutions Page ===== */
.solutions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.sol-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
  display: flex; flex-direction: column;
}
.sol-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.sol-card-img {
  height: 180px;
  background: linear-gradient(135deg, #eef2f7, #dde4ed);
  overflow: hidden;
}
.sol-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.sol-card:hover .sol-card-img img { transform: scale(1.08); }
.sol-card-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.sol-card-body h3 {
  font-size: 18px; font-weight: 900;
  color: var(--primary); margin-bottom: 12px;
  letter-spacing: -0.2px;
}
.sol-card-body p {
  font-size: 13.5px; color: var(--gray-500);
  line-height: 1.75; margin-bottom: 16px;
  flex: none;
}
.sol-features {
  margin-bottom: 20px; padding-left: 0;
}
.sol-features li {
  font-size: 12.5px; color: var(--gray-600);
  padding: 5px 0 5px 22px;
  position: relative; line-height: 1.6;
}
.sol-features li::before {
  content: ''; position: absolute; left: 0; top: 10px;
  width: 6px; height: 6px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

/* ===== Solution Detail Page ===== */
.page-solution-detail .section { padding: 60px 0; }
.page-solution-detail .section-header { margin-bottom: 36px; }
.page-solution-detail .sol-detail-hero { margin-bottom: 32px; }
.page-solution-detail .sol-product-grid { gap: 16px; }
.page-solution-detail .sol-product-card { padding: 16px; }
.page-solution-detail .sol-product-card img { height: 120px; margin-bottom: 12px; }
.page-solution-detail .sol-feature-grid { gap: 16px; }
.page-solution-detail .sol-feature-card { padding: 20px; }
.page-solution-detail .sol-intro-grid { gap: 16px; }
.page-solution-detail .sol-summary-list { gap: 16px; }

.sol-detail-hero {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 32px; align-items: center;
  margin-bottom: 48px;
}
.sol-detail-img {
  height: 360px;
  background: linear-gradient(135deg, #eef2f7, #dde4ed);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.sol-detail-img img {
  width: 100%; height: 100%; object-fit: cover;
}
.sol-detail-desc h2 {
  font-size: 26px; font-weight: 900;
  color: var(--primary); margin-bottom: 16px;
  letter-spacing: -0.3px;
}
.sol-detail-desc p {
  font-size: 15px; color: var(--gray-600);
  line-height: 1.9; margin-bottom: 20px;
}
.sol-detail-tags {
  display: flex; flex-wrap: wrap; gap: 10px;
}
.sol-detail-tags .tag {
  padding: 8px 16px; background: rgba(0,43,92,0.08);
  color: var(--primary); font-size: 13px;
  border-radius: 20px; font-weight: 500;
  border: 1px solid rgba(0,43,92,0.15);
}

.sol-intro-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; margin-top: 24px;
}
.sol-intro-item {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); padding: 24px;
  text-align: center; transition: var(--transition);
}
.sol-intro-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}
.sol-intro-icon {
  width: 44px; height: 44px; margin-bottom: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
}
.sol-intro-item h4 {
  font-size: 14px; font-weight: 700;
  color: var(--dark); margin-bottom: 6px;
}
.sol-intro-item p {
  font-size: 12px; color: var(--gray-500);
}

.sol-product-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.sol-product-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); padding: 20px;
  text-align: center; transition: var(--transition);
}
.sol-product-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.sol-product-card img {
  width: 100%; height: 140px;
  object-fit: cover; border-radius: var(--radius);
  margin-bottom: 14px;
  background: linear-gradient(135deg, #eef2f7, #dde4ed);
}
.sol-product-card h4 {
  font-size: 15px; font-weight: 700;
  color: var(--dark); margin-bottom: 8px;
}
.sol-product-card p {
  font-size: 13px; color: var(--gray-500);
  line-height: 1.6; margin-bottom: 14px;
}
.sol-product-link {
  font-size: 13px; color: var(--accent);
  font-weight: 500; text-decoration: none;
}
.sol-product-link:hover {
  text-decoration: underline;
}

.sol-feature-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.sol-feature-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); padding: 28px;
  text-align: center; transition: var(--transition);
}
.sol-feature-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}
.sol-feature-icon {
  width: 48px; height: 48px; margin-bottom: 14px;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
}
.sol-icon {
  width: 100%; height: 100%;
}
.sol-feature-card h4 {
  font-size: 15px; font-weight: 700;
  color: var(--dark); margin-bottom: 10px;
}
.sol-feature-card p {
  font-size: 13px; color: var(--gray-500);
  line-height: 1.7;
}

.sol-application-list {
  display: flex; flex-direction: column;
  gap: 16px;
}
.sol-application-item {
  display: flex; gap: 20px;
  padding: 20px; background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: var(--transition);
}
.sol-application-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.sol-application-num {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--white); font-size: 16px;
  font-weight: 700; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.sol-application-item h4 {
  font-size: 16px; font-weight: 700;
  color: var(--dark); margin-bottom: 6px;
}
.sol-application-item p {
  font-size: 14px; color: var(--gray-500);
  line-height: 1.7;
}

.sol-case-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.sol-case-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden; transition: var(--transition);
}
.sol-case-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.sol-case-card img {
  width: 100%; height: 180px;
  object-fit: cover;
}
.sol-case-card h4 {
  font-size: 15px; font-weight: 700;
  color: var(--dark); margin-bottom: 8px;
  padding: 0 20px;
}
.sol-case-card p {
  font-size: 13px; color: var(--gray-500);
  line-height: 1.7;
  padding: 0 20px 20px;
}

.contact-section {
  background: var(--primary);
  padding: 48px 0;
  margin-top: 32px;
}
.contact-cta {
  text-align: center; color: var(--white);
}
.contact-cta p {
  font-size: 18px;
   margin-bottom: 20px;
}
.contact-cta-btn {
  display: inline-block;
  padding: 14px 40px;
  background: var(--accent);
  color: var(--white);
  font-weight: 700;
  border-radius: var(--radius);
  text-decoration: none;
  transition: var(--transition);
}
.contact-cta-btn:hover {
  background: #d99a1a;
  transform: translateY(-2px);
}

/* ===== News Page ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; transition: var(--transition);
  border: 1px solid var(--gray-200);
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.news-card-img {
  height: 160px;
  background: linear-gradient(135deg, #eef2f7, #dde4ed);
  overflow: hidden;
}
.news-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.news-card:hover .news-card-img img { transform: scale(1.08); }
.news-card-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.news-date {
  font-size: 12px; color: var(--accent-dark);
  font-weight: 700; margin-bottom: 8px;
  letter-spacing: 0.5px;
}
.news-card-body h3 {
  font-size: 15.5px; font-weight: 800;
  color: var(--dark); margin-bottom: 8px;
  line-height: 1.45;
  flex: 1;
}
.news-card-body p {
  font-size: 13px; color: var(--gray-500);
  line-height: 1.7;
  flex: 1;
}
.news-readmore {
  display: inline-flex; align-items: center;
  font-size: 12.5px; font-weight: 700;
  color: var(--accent-dark);
  margin-top: 12px;
  transition: all .25s;
}
.news-readmore:hover {
  color: var(--accent);
  gap: 6px;
}

/* ===== Pagination ===== */
.pagination {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; margin-top: 48px; padding-top: 32px;
  border-top: 1px solid var(--gray-100);
}
.page-btn {
  padding: 10px 22px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  color: var(--gray-600);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.page-btn:hover:not(:disabled) {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.page-numbers {
  display: flex; gap: 4px;
}
.page-num {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  color: var(--gray-600);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.page-num:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.page-num.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--white);
  border-color: transparent;
}

/* ===== News Categories (静态分类导航) ===== */
.news-categories {
  display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: center; margin: 0 auto 36px;
}
.news-cat-link {
  display: inline-block;
  padding: 8px 22px;
  border-radius: 999px;
  border: 1px solid #e2e6ee;
  background: var(--white);
  color: var(--text);
  font-size: 14px;
  transition: all .25s ease;
}
.news-cat-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.news-cat-link.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--white);
  border-color: transparent;
}

/* 空状态 */
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 0;
  color: #8a93a6;
  font-size: 16px;
}

/* ===== News Detail ===== */
.news-detail { max-width: 1000px; margin: 0 auto; }
.news-detail-meta {
  display: flex; flex-wrap: wrap; gap: 16px;
  color: #8a93a6; font-size: 14px; margin-bottom: 16px;
}
.news-detail-cat, .news-detail-source, .news-detail-views { color: var(--accent); }
.news-detail-title {
  font-size: 28px; line-height: 1.4; margin-bottom: 24px;
  color: var(--text);
}
.news-detail-cover {
  margin-bottom: 28px; border-radius: 12px; overflow: hidden;
}
.news-detail-cover img { width: 100%; display: block; }
.news-detail-body {
  font-size: 16px; line-height: 1.9; color: #3c4257;
}
.news-detail-body img { max-width: 100%; height: auto; border-radius: 8px; }
.news-detail-empty { text-align: center; padding: 80px 0; color: #8a93a6; }

/* 上一篇 / 下一篇 */
.detail-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  max-width: 1000px; margin: 48px auto 0;
  border-top: 1px solid #eef1f6; padding-top: 28px;
}
.detail-nav a, .detail-nav span {
  display: flex; flex-direction: column; gap: 6px;
  padding: 16px 20px; border: 1px solid #eef1f6; border-radius: 10px;
  color: var(--text); transition: all .25s ease;
}
.detail-nav a:hover { border-color: var(--accent); color: var(--accent); }
.detail-next { text-align: right; }
.detail-nav-label { font-size: 13px; color: #8a93a6; }
.detail-nav-title {
  font-size: 15px; overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap;
}
.detail-nav-disabled { color: #b8bfcd; cursor: default; }

/* ===== About Page ===== */
.about-hero {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 56px; align-items: center;
}
.about-hero-text h2 {
  font-size: 32px; font-weight: 900;
  color: var(--primary); margin-bottom: 22px;
  letter-spacing: -0.5px;
}
.about-hero-text p {
  font-size: 15px; color: var(--gray-600);
  line-height: 1.95; margin-bottom: 16px;
}
.about-hero-img {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--gray-200);
}
.about-hero-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

/* Light Header for Dark Backgrounds */
.section-header-light h2,
.section-header-light .en-title {
  color: var(--white);
}
.section-header-light p {
  color: rgba(255,255,255,0.7);
}

/* Company Culture */
.about-culture {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary) 0%, #001a33 50%, #003366 100%);
  position: relative;
  overflow: hidden;
}
.about-culture::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 10% 50%, rgba(232,163,23,0.08) 0%, transparent 35%),
    radial-gradient(circle at 90% 50%, rgba(232,163,23,0.05) 0%, transparent 30%),
    radial-gradient(circle at 50% 80%, rgba(232,163,23,0.04) 0%, transparent 40%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Ccircle cx='30' cy='30' r='1.5'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.culture-content {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}
.culture-card {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  padding: 48px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(20px);
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
}
.culture-card:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.08);
  border-color: rgba(232,163,23,0.3);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.culture-icon-box {
  width: 96px;
  height: 96px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  box-shadow: 0 12px 32px rgba(232,163,23,0.35);
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
}
.culture-icon-box img {
  width: 100%;
  height: 100%;
  padding: 14px;
  object-fit: contain;
}
.culture-card:hover .culture-icon-box {
  transform: scale(1.1) rotate(-5deg);
}
.culture-body h3 {
  font-size: 24px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.culture-mission-text {
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  line-height: 1.9;
  text-align: justify;
  margin-bottom: 24px;
  white-space: pre-wrap;
}
.culture-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(232,163,23,0.4), transparent);
  margin-bottom: 24px;
}
.culture-values-text {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  line-height: 1.95;
  text-align: justify;
}

/* About Vision */
.about-vision {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary) 0%, #002244 50%, var(--primary-light) 100%);
  position: relative;
  overflow: hidden;
}
.about-vision::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.vision-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.vision-icon-box {
  width: 100px;
  height: 100px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  border: 2px solid rgba(232,163,23,0.3);
  flex-shrink: 0;
}
.vision-icon-box img {
  width: 100%;
  height: 100%;
  padding: 12px;
  object-fit: contain;
}
.vision-text {
  max-width: 700px;
}
.vision-text h2 {
  font-size: 32px;
  font-weight: 900;
  color: var(--white);
  margin-bottom: 16px;
}
.vision-text .divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  margin: 0 auto 24px;
  border-radius: 2px;
}
.vision-text p {
  font-size: 18px;
  line-height: 2;
  color: rgba(255,255,255,0.85);
  margin-bottom: 24px;
}
.vision-tag {
  display: inline-block;
  padding: 10px 32px;
  background: rgba(232,163,23,0.15);
  border: 1.5px solid rgba(232,163,23,0.4);
  border-radius: 30px;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 2px;
  font-weight: 600;
}

/* Team Enhanced */
.about-team {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #f8fafc 100%);
  position: relative;
  overflow: hidden;
}
.about-team::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(0,43,92,0.03) 0%, transparent 40%),
    radial-gradient(circle at 80% 20%, rgba(232,163,23,0.04) 0%, transparent 30%);
}
.team-wrapper {
  display: flex;
  align-items: center;
  gap: 20px;
  position: relative;
}
.team-prev, .team-next {
  width: 56px;
  height: 56px;
  border: none;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  border: 1px solid rgba(255,255,255,0.8);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
  flex-shrink: 0;
  z-index: 10;
  position: relative;
}
.team-prev:hover, .team-next:hover {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-color: transparent;
  box-shadow: 0 10px 30px rgba(0,43,92,0.3);
  transform: scale(1.12);
}
.team-prev::after {
  content: '';
  width: 12px;
  height: 12px;
  border-left: 3px solid var(--gray-600);
  border-bottom: 3px solid var(--gray-600);
  transform: rotate(45deg);
  transition: all 0.3s ease;
}
.team-next::after {
  content: '';
  width: 12px;
  height: 12px;
  border-right: 3px solid var(--gray-600);
  border-bottom: 3px solid var(--gray-600);
  transform: rotate(-45deg);
  transition: all 0.3s ease;
}
.team-prev:hover::after, .team-next:hover::after {
  border-color: var(--white);
}
.team-container {
  flex: 1;
  overflow: hidden;
  position: relative;
  height: 100%;
}
.team-grid {
  display: flex;
  gap: 20px;
  transition: transform 0.5s cubic-bezier(.4,0,.2,1);
}
.team-card {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border: 1px solid rgba(255,255,255,0.6);
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
  position: relative;
  overflow: hidden;
  min-width: 170px;
  flex-shrink: 0;
  height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.team-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light), #ffc107);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}
.team-card:hover::before {
  transform: scaleX(1);
}
.team-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(232,163,23,0.06) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.team-card:hover::after {
  opacity: 1;
}
.team-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 16px 40px rgba(0,43,92,0.12);
  border-color: rgba(232,163,23,0.4);
}
.team-card.team-card-active {
  transform: translateY(-12px) scale(1.04);
  box-shadow: 0 20px 50px rgba(0,43,92,0.18);
  border-color: rgba(232,163,23,0.6);
  background: rgba(255,255,255,0.98);
}
.team-card.team-card-active::before {
  transform: scaleX(1);
}
.team-card.team-card-active::after {
  opacity: 1;
}
.team-card.team-card-active .team-avatar {
  transform: scale(1.15);
  box-shadow: 0 20px 50px rgba(0,43,92,0.4);
}
.team-card.team-card-active .team-avatar::after {
  opacity: 1;
  transform: scale(1);
}
.team-avatar {
  width: 84px;
  height: 84px;
  aspect-ratio: 1;
  flex-shrink: 0;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, #004a80 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--white);
  font-weight: 900;
  position: relative;
  box-shadow: 0 10px 30px rgba(0,43,92,0.25);
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
}
.team-card:hover .team-avatar {
  transform: scale(1.12);
  box-shadow: 0 16px 40px rgba(0,43,92,0.35);
}
.team-avatar::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 3px solid rgba(232,163,23,0.4);
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.4s ease;
}
.team-card:hover .team-avatar::after {
  opacity: 1;
  transform: scale(1);
}
.team-avatar::before {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
}
.team-card h4 {
  font-size: 20px;
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 8px;
  letter-spacing: -0.3px;
  transition: color 0.3s ease;
}
.team-card:hover h4 {
  color: var(--primary);
}
.team-card .team-title {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.6;
  margin-bottom: 10px;
  font-weight: 500;
}
.team-card .role {
  font-size: 15px;
  color: var(--accent-dark);
  font-weight: 800;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
}
.team-card:hover .role {
  color: var(--accent);
}

.timeline {
  position: relative; padding-left: 44px;
  margin-top: 40px;
}
.timeline::before {
  content: ''; position: absolute;
  left: 16px; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--accent-light), var(--accent));
  border-radius: 2px;
}
.timeline-item {
  position: relative; margin-bottom: 24px;
  padding: 24px 28px;
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.timeline-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--accent);
  transform: translateX(4px);
}
.timeline-item::before {
  content: ''; position: absolute;
  left: -37px; top: 28px;
  width: 14px; height: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border: 3px solid var(--white);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(232,163,23,0.3);
}
.timeline-year {
  font-size: 17px; font-weight: 900;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.timeline-item p {
  font-size: 14px; color: var(--gray-600); line-height: 1.75;
}
/* ===== Partners Page ===== */
.partner-categories { margin-bottom: 44px; }
.partner-cat-title {
  font-size: 19px; font-weight: 800;
  color: var(--primary); margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--accent);
  display: inline-block;
  letter-spacing: -0.3px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .cat-grid, .products-grid { grid-template-columns: repeat(2, 1fr); }
  .solutions-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .about-hero { grid-template-columns: 1fr; gap: 40px; }
  .sol-detail-card { grid-template-columns: 1fr; }
  .sol-detail-card:nth-child(even) { direction: ltr; }

  .sol-detail-hero { grid-template-columns: 1fr; }
  .sol-product-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-case-grid { grid-template-columns: repeat(2, 1fr); }

  .cert-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1000px) {
  .header-inner{
    height: 70px;
  }
  .nav {
    display: none; position: absolute;
    top: 70px; left: 0; right: 0;
    background: rgba(0,43,92,0.98);
    backdrop-filter: blur(16px);
    flex-direction: column; padding: 16px 20px;
    gap: 2px; border-top: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    max-height: calc(100vh - 90px); overflow-y: auto;
  }
  .nav.open { display: flex; }
  .nav > a, .nav-item { width: 100%; }
  .nav-item { display: block; }
  .nav-item > a { display: flex; align-items: center; gap: 5px; justify-content: flex-start; width: 100%; padding: 12px 16px; font-size: 15px; }
  .nav > a { display: block; padding: 12px 16px; font-size: 15px; }
  .menu-toggle { display: flex; }
  .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
  .menu-toggle.active span:nth-child(2) { opacity: 0; }
  .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

  /* 移动端二级菜单：手风琴内嵌（替代桌面浮层） */
  .dropdown {
    position: static; min-width: 0;
    background: rgba(0,0,0,0.18); border-radius: 0;
    box-shadow: none; padding: 0 0 6px;
    opacity: 1; visibility: visible; transform: none;
    display: none;
  }
  .nav-item.open > .dropdown { display: block; }
  .dropdown a { padding: 10px 16px 10px 32px; font-size: 14px; }
  .dropdown a:hover { background: rgba(255,255,255,0.06); padding-left: 32px; }

  /* 移动端产品 mega 菜单：手风琴内嵌展示两级分类（mega 菜单与 nav-item 是兄弟节点，用 open 类控制） */
  .mega-menu.open { display: block; }
  .mega-menu {
    display: none;
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
    margin: 0;
  }
  .mega-inner { flex-direction: column; gap: 0; padding: 6px 0; }
  .mega-col { padding: 0; }
  .mega-cat {
    display: block; padding: 11px 16px 11px 32px;
    font-size: 14px; color: #fff; font-weight: 600;
  }
  .mega-col ul { padding: 0 0 6px; }
  .mega-col li a {
    display: block; padding: 10px 16px 10px 44px;
    font-size: 13.5px; color: rgba(255,255,255,0.78);
    background: transparent; border-radius: 0;
  }
  .mega-col li a:hover { background: rgba(255,255,255,0.06); color: #fff; padding-left: 44px; }
}

@media (max-width: 768px) {
  .hero { height: 85vh; }
  .hero-content h1 { font-size: 32px; }
  .hero-content p { font-size: 15px; }
  .hero-content::before { display: none; }
  .hero-prev, .hero-next { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .stat-num { font-size: 36px; }
  .cat-grid, .products-grid, .news-grid, .solutions-grid { grid-template-columns: 1fr; }
  .sol-grid { grid-template-columns: 1fr; }
  .sol-detail-hero { grid-template-columns: 1fr; }
  .sol-product-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-case-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .page-banner { height: 240px; }
  .page-banner h1 { font-size: 30px; }
  .page-banner p { font-size: 13px; letter-spacing: 2px; }

  .news-card { flex-direction: column; }
  .news-card-img { width: 100%; min-height: 180px; }
  .section { padding: 60px 0; }
  .section-header h2 { font-size: 26px; }
  .breadcrumb { display: none; }
  .product-tabs { gap: 6px; }
  .product-tab { padding: 8px 16px; font-size: 13px; }
  .about-vision { padding: 60px 0; }
  .about-vision p { font-size: 16px; }
  .vision-icon-box { width: 80px; height: 80px; font-size: 36px; }
  .about-hero { gap: 28px; }
}

/* ---- 下载中心 ---- */
.download-cat-title {
  font-size: 18px; color: #002b5c;
  margin-bottom: 16px; padding-bottom: 8px;
  border-bottom: 2px solid #002b5c;
}
.download-grid {
  display: grid; gap: 16px; margin-bottom: 40px;
}
.download-card {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  transition: box-shadow .2s;
}
.download-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.06); }
.download-card-body { flex: 1; min-width: 200px; }
.download-card-title { font-size: 15px; color: #111; margin: 0 0 4px; }
.download-card-meta { font-size: 13px; color: #888; }
.download-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 20px;
  background: #002b5c; color: #fff; border-radius: 6px;
  font-size: 13px; text-decoration: none; white-space: nowrap;
  border: none; cursor: pointer;
  transition: background .2s;
}
.download-btn:hover { background: #003d7e; color: #fff; }
.download-btn svg { width: 14px; height: 14px; }
/* download responsive */
@media (max-width: 480px) {
  .download-card { flex-direction: column; align-items: flex-start; }
  .download-card-body { min-width: 0; }
}

@media (max-width: 480px) {
  .hero { height: 70vh; }
  .hero-content h1 { font-size: 24px; }
  .hero-btn { padding: 12px 24px; font-size: 14px; }
  .stat-num { font-size: 30px; }
  .cat-card-img { height: 180px; }
  .product-card-img { height: 170px; }
  .contact-form { padding: 24px; }
  .team-grid { grid-template-columns: 1fr; }
}


@media (max-width: 1400px) {
    .hero .hero-slide .hero-overlay .container{
      max-width: 1000px;
    }
}

@media (max-width: 1250px) {
  .nav a{
    padding: 8px 12px;
  }
  .phone-icon{
    display: none;
  }
}

@media (max-width: 1000px) {
  
}

/* ============================================================
   Mobile / Tablet Fine-tuning（移动端精细优化）
   说明：对 768px 以下移动端统一调整字体、间距、内边距、外边距，
   使内容在手机上更紧凑、可读、美观。
   ============================================================ */
@media (max-width: 768px) {

  /* ---- 全局容器与区块间距 ---- */
  .container { padding: 0 16px; }
  .section { padding: 42px 0; }
  .section-header { margin-bottom: 36px; }
  .section-header h2 { font-size: 24px; }
  .section-header p { font-size: 14px; }
  .page-banner { height: 200px; margin-top: 70px; }
  .page-banner h1 { font-size: 26px; }
  .page-banner p { font-size: 12px; letter-spacing: 2px; }
  .breadcrumb { display: none; }

  /* ---- Header / Nav ---- */
  .logo-img { width: 46px; height: 28px; }
  .logo-text { font-size: 17px; }
  .logo-sub { font-size: 9px; letter-spacing: 2px; }
  .nav { top: 62px; max-height: calc(100vh - 62px); }
  .nav > a, .nav-item > a { padding: 14px 16px; font-size: 16px; }
  .nav-item > a { font-size: 16px; }

  /* ---- Hero ---- */
  .hero { height: 78vh; }
  .hero-content { text-align: center; margin: 0 auto; }
  .hero-content h1 { font-size: 30px; margin-bottom: 16px; }
  .hero-content p { font-size: 14px; line-height: 1.8; margin-bottom: 28px; }
  .hero-btn { padding: 13px 32px; font-size: 14px; }

  /* ---- 各网格间距 ---- */
  .cat-grid, .products-grid, .news-grid, .solutions-grid,
  .sol-grid, .sol-product-grid, .sol-feature-grid {
    gap: 16px;
  }
  .cat-card-body { padding: 18px 16px; }
  .cat-card-body h3 { font-size: 18px; }
  .cat-card-body p { font-size: 13px; line-height: 1.7; }
  .cat-card .tags { gap: 6px; }
  .cat-card .tag { font-size: 12px; padding: 4px 12px; }

  /* ---- 产品卡片 ---- */
  .product-card-img { height: 200px; }
  .product-card-body { padding: 16px; }
  .product-card-body h3 { font-size: 15px; }
  .product-card-body p { font-size: 12.5px; }
  .product-card-body .spec-tag { font-size: 10.5px; }

  /* ---- 产品分类 Tab ---- */
  .product-tabs { gap: 8px; margin-bottom: 28px; overflow-x: auto; flex-wrap: nowrap; justify-content: flex-start; -webkit-overflow-scrolling: touch; }
  .product-tabs::-webkit-scrollbar { display: none; }
  .product-tab { padding: 8px 16px; font-size: 13px; white-space: nowrap; flex: 0 0 auto; }

  /* ---- 分页 ---- */
  .pagination { gap: 6px; }
  .page-btn { min-width: 34px; padding: 8px 12px; font-size: 13px; }

  /* ---- 产品 / 方案详情页 ---- */
  .detail-main { padding: 0; }
  .detail-hero { grid-template-columns: 1fr; gap: 24px; margin-bottom: 28px; }
  .detail-image img { height: 250px; }
  .detail-info h1 { font-size: 22px; }
  .detail-subtitle { font-size: 13px; margin-bottom: 14px; }
  .detail-desc { font-size: 14px; line-height: 1.8; }
  .detail-features { gap: 8px; }
  .detail-feature-tag { font-size: 12px; padding: 5px 12px; }
  .detail-contact-btn { padding: 11px 26px; font-size: 14px; }
  .detail-section { padding: 20px 16px; margin-bottom: 16px; }
  .detail-section h2 { font-size: 17px; margin-bottom: 16px; padding-bottom: 10px; }
  .detail-params td { padding: 10px 10px; font-size: 13px; }
  .detail-params td:first-child { width: 32%; }
  .detail-rich-content table td { padding: 10px 10px; font-size: 13px; }
  .detail-highlights ul { grid-template-columns: 1fr; gap: 10px; }
  .detail-highlights li, .detail-rich-content li { font-size: 13px; padding: 10px 12px; }
  .detail-applications { gap: 8px; }
  .detail-app-tag { font-size: 13px; padding: 6px 14px; }
  .detail-intro, .detail-summary { font-size: 14px; }
  /* 详情上下篇 */
  .detail-nav { gap: 10px; margin-top: 28px; padding-top: 20px; }
  .detail-prev, .detail-next { flex: 1; min-width: 0; }
  .detail-nav-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: block; }

  /* ---- 方案 ---- */
  .sol-detail-body { padding: 24px 18px; }
  .sol-detail-body h3 { font-size: 20px; }
  .sol-detail-body p { font-size: 13.5px; }
  .sol-detail-img { min-height: 220px; font-size: 44px; }
  .sol-detail-card { margin-bottom: 24px; }

  /* ---- 新闻 ---- */
  .news-card-img { min-height: 200px; }
  .news-card-body { padding: 18px 16px; }
  .news-card-body h3 { font-size: 16px; }
  .news-card-body p { font-size: 13px; }
  .news-content { font-size: 14px; line-height: 1.85; }
  .news-detail-title { font-size: 22px; }
  .news-date { font-size: 13px; }

  /* ---- 关于/联系/团队 ---- */
  .about-grid, .about-hero { gap: 24px; }
  .about-vision { padding: 42px 0; }
  .about-vision p { font-size: 15px; }
  .vision-icon-box { width: 72px; height: 72px; font-size: 30px; }
  .contact-section { padding: 42px 0; }
  .contact-form { padding: 20px; }
  .contact-cta { padding: 32px 0; }
  .contact-cta p { font-size: 18px; }
  .contact-cta-btn { padding: 10px 24px; font-size: 14px; }
  .team-card { padding: 24px 16px; }
  .team-card h4 { font-size: 16px; }
  .team-card .team-title { font-size: 13px; }

  /* ---- 资质证书 / 合作伙伴 ---- */
  .cert-item { height: 180px; }
  .cert-grid { gap: 12px; }
  .partners-section { padding: 42px 0; }

  /* ---- 下载中心 ---- */
  .download-card { padding: 16px; }
  .download-card-title { font-size: 14px; }
  .download-card-meta { font-size: 12px; }
  .download-btn { padding: 7px 16px; font-size: 12px; }

  /* ---- Footer ---- */
  .footer { padding: 48px 0 0; }
  .footer-grid { gap: 28px; margin-bottom: 32px; }
  .footer h4 { font-size: 15px; margin-bottom: 14px; }
  .footer p, .footer-links a { font-size: 13px; }
  .footer-bottom { padding: 18px 0; }
  .footer-contact { font-size: 12.5px; }
  .footer-wechat .wechat-qr { width: 80px; }

  /* ---- 企业资质（轮播）手机端 ---- */
  .cert-section { padding-bottom: 36px; }
  .cert-carousel-wrapper { padding: 0 8px; margin-top: 12px; }
  .cert-carousel { gap: 14px; animation-duration: 30s; }
  .cert-item {
    flex: 0 0 calc((50% - 14px) / 2); /* 每屏 2 张，剩余一张半露形成轮播感 */
    min-height: 0;
    height: auto;
    border-radius: 12px;
  }
  .cert-item img { padding: 10px 10px 4px; }
  .cert-item h4 { font-size: 13px; padding: 10px 12px 18px !important; line-height: 1.3; }
  .cert-nav {
    display: none; /* 小屏不需要左右导航按钮，依赖自动滚动 */
  }

  /* ---- 核心团队（轮播）手机端 ---- */
  .about-team { padding: 42px 0; }
  .team-wrapper { padding: 0 8px; gap: 10px; }
  .team-container { overflow-x: auto; -webkit-overflow-scrolling: touch; scroll-snap-type: x mandatory; }
  .team-container::-webkit-scrollbar { display: none; }
  .team-grid {
    grid-template-columns: none;
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: calc((100% - 10px) / 2); /* 每屏 2 张 */
    gap: 10px;
    transform: none !important; /* 覆盖 JS 控制的 transform，避免错位 */
    transition: none;
  }
  .team-card { scroll-snap-align: start; }
  .team-prev, .team-next { display: none; }
}

/* ---- 小屏手机（≤480px） ---- */
@media (max-width: 480px) {

  .section { padding: 36px 0; }
  .section-header { margin-bottom: 30px; }
  .section-header h2 { font-size: 22px; }
  .page-banner { height: 150px; }
  .page-banner h1 { font-size: 24px; }

  .hero { height: 68vh; }
  .hero-content h1 { font-size: 26px; }
  .hero-content p { font-size: 13px; }

  .cat-grid, .products-grid, .news-grid, .solutions-grid,
  .sol-grid, .sol-product-grid, .sol-feature-grid { gap: 14px; }
  .product-card-img, .cat-card-img { height: 180px; }

  .product-tab { padding: 7px 14px; font-size: 12.5px; }
  .page-btn { min-width: 30px; padding: 7px 10px; font-size: 12px; }

  .detail-image img { height: 220px; }
  .detail-info h1 { font-size: 20px; }
  .detail-feature-tag { font-size: 11px; padding: 4px 10px; }
  .detail-app-tag { font-size: 12px; padding: 5px 12px; }
  .detail-section h2 { font-size: 16px; }

  .sol-detail-body h3 { font-size: 18px; }
  .sol-detail-img { min-height: 190px; }

  .about-vision p { font-size: 14px; }
  .contact-form { padding: 18px; }

  .cert-item {
    flex: 0 0 calc((50% - 0px) / 1); /* 小屏每屏 1 张，更清晰 */
    height: auto;
  }
  .cert-item img { padding: 8px 8px 4px; }
  .cert-item h4 { font-size: 12.5px; padding: 8px 10px 16px !important; }
  .team-card { min-width: 0 !important; padding: 20px 14px !important; height: auto !important; }
  .team-card h4 { font-size: 15px !important; }
  .team-card .role { font-size: 12px !important; }
  .footer-grid { gap: 24px; }
  .footer-bottom { font-size: 11.5px; }
  .footer-grid>div{
    display: none;

  }
  .footer-brand,.footer-wechat-col{
    display: block !important;
  }
  .partners-prev, .partners-next{
    display: none !important;
  }
  
}