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

  :root {
    --navy: #0B1F3A;
    --navy-mid: #132B50;
    --gold: #C8A84B;
    --gold-light: #E2C97E;
    --white: #FFFFFF;
    --off-white: #F5F6F8;
    --gray-light: #E8ECF1;
    --gray-mid: #8A95A3;
    --gray-dark: #3D4A5C;
    --text: #1A2535;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
  }

  html { scroll-behavior: smooth; }

  body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.6;
    font-size: 16px;
  }

  /* NAV */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(11, 31, 58, 0.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(200, 168, 75, 0.2);
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .nav-logo {
    font-family: 'Playfair Display', serif;
    color: var(--white);
    font-size: 1.4rem;
    letter-spacing: 0.04em;
    text-decoration: none;
  }

  .nav-logo span { color: var(--gold); }

  .nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
  }

  .nav-links a {
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    white-space: nowrap;
    transition: color 0.2s;
  }

  .nav-links a:hover { color: var(--gold-light); }

  .nav-cta {
    background: var(--gold);
    color: var(--navy) !important;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600 !important;
    font-size: 0.8125rem !important;
    letter-spacing: 0.04em;
    white-space: nowrap;
    transition: background 0.2s !important;
  }

  .nav-cta:hover { background: var(--gold-light) !important; color: var(--navy) !important; }

  /* 长标签语言（ru 等）导航放不下时收紧间距，防止折行/溢出 */
  @media (max-width: 1150px) and (min-width: 769px) {
    .nav-links { gap: 1.1rem; }
    nav { padding: 0 1.25rem; }
    .nav-cta { padding: 0.5rem 0.9rem; }
  }

  /* HERO */
  .hero {
    min-height: 100vh;
    background: linear-gradient(160deg, var(--navy) 0%, var(--navy-mid) 60%, #0F2640 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 2rem 4rem;
    position: relative;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      radial-gradient(circle at 20% 50%, rgba(200,168,75,0.06) 0%, transparent 50%),
      radial-gradient(circle at 80% 20%, rgba(200,168,75,0.04) 0%, transparent 40%);
  }

  .hero-grid {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(200,168,75,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(200,168,75,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
  }

  .hero-content { position: relative; max-width: 820px; }

  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(200,168,75,0.12);
    border: 1px solid rgba(200,168,75,0.3);
    color: var(--gold-light);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    margin-bottom: 2rem;
  }

  .hero-eyebrow::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--gold);
    border-radius: 50%;
  }

  .hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
  }

  .hero h1 em {
    font-style: normal;
    color: var(--gold);
  }

  .hero-sub {
    font-size: 1.125rem;
    color: rgba(255,255,255,0.65);
    max-width: 580px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
    font-weight: 300;
  }

  .hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
  }

  .btn-primary {
    background: var(--gold);
    color: var(--navy);
    padding: 0.875rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: background 0.2s, transform 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: 0.02em;
  }

  .btn-primary:hover { background: var(--gold-light); transform: translateY(-1px); }

  .btn-outline {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.3);
    padding: 0.875rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 400;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: border-color 0.2s, background 0.2s;
    letter-spacing: 0.02em;
  }

  .btn-outline:hover {
    border-color: rgba(200,168,75,0.5);
    background: rgba(200,168,75,0.08);
  }

  /* TRUST BAR */
  .trust-bar {
    background: #EEF2F7;
    border-top: 1px solid #d8e2ee;
    border-bottom: 1px solid #d8e2ee;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
  }

  .trust-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--gray-dark);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.03em;
  }

  .trust-item .dot {
    width: 8px; height: 8px;
    background: var(--gold);
    border-radius: 50%;
    flex-shrink: 0;
  }

  /* SECTIONS */
  section { padding: 6rem 2rem; }

  .container { max-width: 1100px; margin: 0 auto; }

  .section-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 0.75rem;
  }

  .section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.8rem, 4vw, 2.75rem);
    color: var(--navy);
    line-height: 1.2;
    margin-bottom: 1rem;
  }

  .section-sub {
    font-size: 1.0625rem;
    color: var(--gray-mid);
    max-width: 540px;
    line-height: 1.7;
    font-weight: 300;
  }

  /* SERVICES */
  #services { background: var(--off-white); }

  .services-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 3.5rem;
    gap: 2rem;
    flex-wrap: wrap;
  }

  .services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5px;
    background: var(--gray-light);
    border: 1.5px solid var(--gray-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
  }

  .service-card {
    background: var(--white);
    padding: 2rem 1.75rem;
    transition: background 0.2s;
    cursor: default;
  }

  .service-card:hover { background: var(--off-white); }

  .service-icon {
    width: 44px; height: 44px;
    background: var(--navy);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    flex-shrink: 0;
  }

  .service-icon svg { width: 22px; height: 22px; stroke: var(--gold); fill: none; stroke-width: 1.5; }

  .service-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.5rem;
    letter-spacing: 0.01em;
  }

  .service-card p {
    font-size: 0.875rem;
    color: var(--gray-mid);
    line-height: 1.65;
  }

  .service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 1rem;
  }

  .tag {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--navy);
    background: var(--gray-light);
    padding: 0.2rem 0.6rem;
    border-radius: 3px;
  }

  .card-quote-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1.25rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--navy);
    text-decoration: none;
    border-bottom: 1.5px solid var(--gold);
    padding-bottom: 1px;
    transition: color 0.2s, border-color 0.2s;
    letter-spacing: 0.02em;
  }

  .card-quote-btn:hover { color: var(--gold); }
  .card-quote-btn svg { transition: transform 0.2s; }
  .card-quote-btn:hover svg { transform: translateX(3px); }

  .section-cta-bar {
    text-align: center;
    margin-top: 3rem;
  }

  /* WHY US */
  #why { background: var(--navy); }

  #why .section-label { color: var(--gold); }
  #why .section-title { color: var(--white); }
  #why .section-sub { color: rgba(255,255,255,0.55); }

  .stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1px;
    background: rgba(200,168,75,0.15);
    border: 1px solid rgba(200,168,75,0.15);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-top: 3.5rem;
  }

  .stat-cell {
    background: var(--navy);
    padding: 2rem 1.5rem;
    text-align: center;
  }

  .stat-number {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    color: var(--gold);
    line-height: 1;
    margin-bottom: 0.4rem;
  }

  .stat-label {
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.5);
    font-weight: 400;
    letter-spacing: 0.04em;
  }

  .why-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin-top: 2.5rem;
  }

  .why-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(200,168,75,0.15);
    border-radius: var(--radius-md);
    padding: 1.5rem;
  }

  .why-card-num {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--gold);
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
  }

  .why-card h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.5rem;
  }

  .why-card p {
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.5);
    line-height: 1.65;
  }

  /* PROCESS */
  #process { background: var(--white); }

  .process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0;
    margin-top: 3.5rem;
    position: relative;
  }

  .process-step {
    padding: 2rem;
    position: relative;
  }

  .process-step:not(:last-child)::after {
    content: '→';
    position: absolute;
    right: -0.5rem;
    top: 2.1rem;
    color: var(--gold);
    font-size: 1rem;
    z-index: 1;
  }

  .step-number {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    color: var(--gray-light);
    line-height: 1;
    margin-bottom: 1rem;
    font-weight: 700;
  }

  .process-step h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.4rem;
  }

  .process-step p {
    font-size: 0.8125rem;
    color: var(--gray-mid);
    line-height: 1.6;
  }

  /* CONTACT */
  #contact { background: var(--navy); }

  #contact .section-label { color: var(--gold); }
  #contact .section-title { color: var(--white); }

  #contact h3 { color: var(--white) !important; }

  #contact .contact-item-text .label { color: rgba(255,255,255,0.45); }
  #contact .contact-item-text .value { color: rgba(255,255,255,0.85); }
  #contact .contact-item-text .value:hover { color: var(--gold-light); }

  #contact .contact-item-icon {
    background: rgba(255,255,255,0.07);
    border-color: rgba(200,168,75,0.2);
  }
  #contact .contact-item-icon svg { stroke: rgba(255,255,255,0.7); }

  #contact .contact-form {
    background: rgba(255,255,255,0.05);
    border-color: rgba(200,168,75,0.2);
  }

  #contact .form-group label { color: rgba(255,255,255,0.6); }

  #contact .form-group input,
  #contact .form-group select,
  #contact .form-group textarea {
    background: rgba(255,255,255,0.07);
    border-color: rgba(200,168,75,0.2);
    color: var(--white);
  }

  #contact .form-group input::placeholder,
  #contact .form-group textarea::placeholder { color: rgba(255,255,255,0.3); }

  #contact .form-group input:focus,
  #contact .form-group select:focus,
  #contact .form-group textarea:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(200,168,75,0.15);
    background: rgba(255,255,255,0.1);
  }

  #contact .form-group select option { background: var(--navy); color: var(--white); }

  #contact .form-submit {
    background: var(--gold);
    color: var(--navy);
  }
  #contact .form-submit:hover { background: var(--gold-light); }

  .contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
    margin-top: 3.5rem;
  }

  .contact-info h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 1.5rem;
  }

  .contact-items { display: flex; flex-direction: column; gap: 1rem; }

  .contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
  }

  .contact-item-icon {
    width: 36px; height: 36px;
    background: var(--off-white);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .contact-item-icon svg { width: 16px; height: 16px; stroke: var(--navy); fill: none; stroke-width: 1.75; }

  .contact-item-text .label {
    font-size: 0.75rem;
    color: var(--gray-mid);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.2rem;
  }

  .contact-item-text .value {
    font-size: 0.9375rem;
    color: var(--navy);
    font-weight: 500;
    text-decoration: none;
  }

  .contact-item-text .value:hover { color: var(--gold); }

  .contact-form {
    background: var(--off-white);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
  }

  .contact-form h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 1.5rem;
  }

  .form-group { margin-bottom: 1.25rem; }

  .form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--gray-dark);
    margin-bottom: 0.4rem;
    letter-spacing: 0.02em;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    width: 100%;
    background: var(--white);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-sm);
    padding: 0.7rem 0.875rem;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
    -webkit-appearance: none;
  }

  .form-group input:focus,
  .form-group select:focus,
  .form-group textarea:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(200,168,75,0.1);
  }

  .form-group textarea { resize: vertical; min-height: 100px; line-height: 1.6; }

  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

  .form-submit {
    background: var(--navy);
    color: var(--white);
    border: none;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    width: 100%;
    transition: background 0.2s;
    letter-spacing: 0.02em;
    margin-top: 0.5rem;
  }

  .form-submit:hover { background: var(--navy-mid); }

  /* FOOTER */
  footer {
    background: #070E1A;
    padding: 3rem 2rem;
    text-align: center;
  }

  .footer-logo {
    font-family: 'Playfair Display', serif;
    color: var(--white);
    font-size: 1.25rem;
    letter-spacing: 0.04em;
    margin-bottom: 0.75rem;
  }

  .footer-logo span { color: var(--gold); }

  footer p {
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.3);
    line-height: 1.8;
  }

  footer a { color: rgba(255,255,255,0.5); text-decoration: none; }
  footer a:hover { color: var(--gold-light); }

  /* ACCREDITATIONS */
  .accred-bar {
    background: #071628;
    padding: 2.5rem 2rem;
    text-align: center;
  }

  .accred-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.3);
    margin-bottom: 1.25rem;
  }

  .accred-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
  }

  .accred-badge {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(200,168,75,0.2);
    color: rgba(255,255,255,0.6);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    padding: 0.35rem 0.875rem;
    border-radius: 3px;
  }

  /* RESPONSIVE */
  @media (max-width: 768px) {
    nav { padding: 0 1rem; }
    .nav-links { display: none; }
    section { padding: 4rem 1.25rem; }
    .contact-layout { grid-template-columns: 1fr; gap: 2.5rem; }
    .form-row { grid-template-columns: 1fr; }
    .process-step:not(:last-child)::after { display: none; }
    .trust-bar { gap: 1.25rem; }
    .services-header { flex-direction: column; align-items: flex-start; }
  }

  @media (max-width: 480px) {
    .hero-actions { flex-direction: column; align-items: center; }
    .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  }

  /* PRODUCTS */
  .products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-top: 3rem;
  }

  @media (max-width: 1024px) { .products-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 540px)  { .products-grid { grid-template-columns: 1fr 1fr; } }

  .product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(11,31,58,0.07);
    transition: transform 0.2s, box-shadow 0.2s;
  }

  .product-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(11,31,58,0.12);
  }

  .product-img {
    background: linear-gradient(140deg, #0D2444 0%, #1a3a6b 100%);
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .product-img svg { width: 52px; height: 52px; opacity: 0.9; }

  .product-body { padding: 1.1rem 1.1rem 1.25rem; }

  .product-body h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.6rem;
  }

  .product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 1rem;
  }

  .ptag {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--navy-mid);
    background: #dde6f0;
    border: 1px solid #c8d6e8;
    padding: 0.15rem 0.5rem;
    border-radius: 50px;
  }

  .product-btn {
    display: block;
    text-align: center;
    background: transparent;
    border: 1.5px solid var(--gray-light);
    color: var(--navy);
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.55rem;
    border-radius: 50px;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    letter-spacing: 0.02em;
  }

  .product-btn:hover {
    background: var(--gold);
    border-color: var(--gold);
    color: var(--navy);
  }

  /* NAV SEARCH */
  .nav-search-form {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(200,168,75,0.25);
    border-radius: 50px;
    padding: 0.3rem 0.3rem 0.3rem 1rem;
    gap: 0.5rem;
    flex: 1;
    max-width: 260px;
    margin: 0 1.5rem;
    transition: border-color 0.2s, background 0.2s;
  }

  .nav-search-form:focus-within {
    border-color: rgba(200,168,75,0.6);
    background: rgba(255,255,255,0.12);
  }

  .nav-search-form input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    outline: none;
    color: var(--white);
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
  }

  .nav-search-form input::placeholder {
    color: rgba(255,255,255,0.4);
  }

  .nav-search-btn {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--gold);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
  }

  .nav-search-btn:hover { background: var(--gold-light); }

  .nav-search-btn svg {
    width: 14px;
    height: 14px;
    stroke: var(--navy);
    fill: none;
    stroke-width: 2.2;
  }

  @media (max-width: 768px) {
    .nav-search-form { max-width: 140px; margin: 0 0.75rem; }
  }

  @media (max-width: 480px) {
    .nav-search-form { max-width: 100px; padding-left: 0.7rem; }
    .nav-search-form input { font-size: 0.75rem; }
  }

  /* SEARCH RESULT HIGHLIGHT */
  .search-highlight {
    animation: search-pulse 1.8s ease;
    border-radius: var(--radius-md);
  }

  @keyframes search-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(200,168,75,0.6); }
    15%  { box-shadow: 0 0 0 6px rgba(200,168,75,0.35); }
    100% { box-shadow: 0 0 0 0 rgba(200,168,75,0); }
  }



  .float-btns {
    position: fixed;
    bottom: 2rem;
    right: 1.5rem;
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.75rem;
  }

  .float-btn {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 1.1rem 0.65rem 0.85rem;
    border-radius: 50px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    box-shadow: 0 4px 16px rgba(0,0,0,0.18);
    transition: transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
    cursor: pointer;
    border: none;
  }

  .float-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.22);
  }

  .float-btn-wa {
    background: #25D366;
    color: #fff;
  }

  .float-btn-wc {
    background: #07C160;
    color: #fff;
  }

  .float-btn svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
  }

  /* WeChat tooltip */
  .wechat-tooltip {
    display: none;
    position: absolute;
    right: calc(100% + 12px);
    bottom: 0;
    background: var(--navy);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.5rem 0.875rem;
    border-radius: 8px;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  }

  .wechat-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-right: none;
    border-left-color: var(--navy);
  }

  .float-btn-wc-wrap {
    position: relative;
    display: flex;
    align-items: center;
  }

  .float-btn-wc-wrap:hover .wechat-tooltip,
  .float-btn-wc-wrap.copied .wechat-tooltip {
    display: block;
  }

  /* PRODUCTS */
  .products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-top: 3rem;
  }

  @media (max-width: 1024px) { .products-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 540px)  { .products-grid { grid-template-columns: 1fr 1fr; } }

  .product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(11,31,58,0.07);
    transition: transform 0.2s, box-shadow 0.2s;
  }

  .product-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(11,31,58,0.12);
  }

  .product-img {
    background: linear-gradient(140deg, #0D2444 0%, #1a3a6b 100%);
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .product-img svg { width: 52px; height: 52px; opacity: 0.9; }

  .product-body { padding: 1.1rem 1.1rem 1.25rem; }

  .product-body h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.6rem;
  }

  .product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 1rem;
  }

  .ptag {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--navy-mid);
    background: #dde6f0;
    border: 1px solid #c8d6e8;
    padding: 0.15rem 0.5rem;
    border-radius: 50px;
  }

  .product-btn {
    display: block;
    text-align: center;
    background: transparent;
    border: 1.5px solid var(--gray-light);
    color: var(--navy);
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.55rem;
    border-radius: 50px;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    letter-spacing: 0.02em;
  }

  .product-btn:hover {
    background: var(--gold);
    border-color: var(--gold);
    color: var(--navy);
  }


  /* ===== SUBPAGE PAGE HERO ===== */
  .page-hero {
    padding: 140px 2rem 4.5rem;
    background: linear-gradient(160deg, var(--navy) 0%, var(--navy-mid) 60%, #0F2640 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      radial-gradient(circle at 20% 50%, rgba(200,168,75,0.06) 0%, transparent 50%),
      radial-gradient(circle at 80% 20%, rgba(200,168,75,0.04) 0%, transparent 40%);
  }
  .page-hero .hero-grid { position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(200,168,75,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(200,168,75,0.04) 1px, transparent 1px);
    background-size: 60px 60px; }
  .page-hero-content { position: relative; max-width: 760px; margin: 0 auto; }
  .page-hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 3.25rem);
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
  }
  .page-hero h1 em { font-style: normal; color: var(--gold); }
  .page-hero .page-hero-sub {
    font-size: 1.0625rem;
    color: rgba(255,255,255,0.65);
    max-width: 620px;
    margin: 0 auto;
    line-height: 1.7;
    font-weight: 300;
  }
  .page-hero .hero-eyebrow { margin-bottom: 1.5rem; }

  /* ===== ACTIVE NAV STATE ===== */
  .nav-links a.active { color: var(--gold); font-weight: 500; }

  /* ===== MOBILE MENU ===== */
  .nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
  .nav-toggle span { width: 22px; height: 2px; background: var(--gold); border-radius: 2px; transition: transform .2s, opacity .2s; }
  nav.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  nav.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  nav.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  @media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0;
      flex-direction: column; background: #0B1F3A; padding: 1.25rem 2rem 1.5rem; gap: 1rem;
      border-bottom: 1px solid rgba(200,168,75,0.25); }
    nav.nav-open .nav-links { display: flex; }
  }

  /* ===== SERVICE CARDS: real photos instead of icons ===== */
  .service-img {
    position: relative;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 1.25rem;
    background: #eef1f5;
  }
  .service-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    filter: saturate(0.85) contrast(1.02);
  }
  .service-img::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(11,31,58,0.08) 0%, rgba(11,31,58,0.24) 100%);
    pointer-events: none;
  }
  .service-icon { display: none; }

  /* ===== SERVICES HEADER: copy left + dotted world map right ===== */
  .services-header { align-items: center; gap: 2.5rem; }
  .services-header-copy { flex: 1 1 400px; }
  .services-header-map { flex: 1 1 440px; max-width: 620px; margin-left: auto; }
  .services-header-map img { width: 100%; height: auto; display: block; }
  .map-caption {
    margin-top: 0.9rem;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gray-mid);
  }
  .map-caption span { color: var(--gold); }
  @media (max-width: 768px) {
    .services-header-map { max-width: 100%; margin-left: 0; }
  }

  /* ===== PRODUCT CARDS: real photos instead of icons ===== */
  .product-img {
    height: auto;
    aspect-ratio: 4 / 3;
    background: #eef1f5;
  }
  .product-img svg { display: none; }
  .product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  /* ===== BLOG ===== */
  .blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
  }
  .blog-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(11,31,58,0.07);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
  }
  .blog-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(11,31,58,0.12); }
  .blog-card-img {
    background: linear-gradient(140deg, #0D2444 0%, #1a3a6b 100%);
    padding: 1.25rem 1.25rem 1rem;
    display: flex; align-items: flex-start; justify-content: space-between;
  }
  .blog-cat {
    font-size: 0.7rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--gold-light); background: rgba(200,168,75,0.12);
    border: 1px solid rgba(200,168,75,0.35);
    padding: 0.25rem 0.7rem; border-radius: 50px;
  }
  .blog-soon {
    font-size: 0.65rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--gray-mid); background: rgba(255,255,255,0.1);
    padding: 0.25rem 0.6rem; border-radius: 50px;
  }
  .blog-body { padding: 1.25rem; display: flex; flex-direction: column; flex: 1; }
  .blog-meta { font-size: 0.75rem; color: var(--gray-mid); letter-spacing: 0.04em; margin-bottom: 0.5rem; }
  .blog-body h3 { font-size: 1rem; font-weight: 600; color: var(--navy); margin-bottom: 0.5rem; line-height: 1.4; }
  .blog-body p { font-size: 0.875rem; color: var(--gray-mid); line-height: 1.65; flex: 1; }
  .blog-link {
    display: inline-flex; align-items: center; gap: 0.4rem; margin-top: 1.1rem;
    font-size: 0.8125rem; font-weight: 600; color: var(--navy); text-decoration: none;
    border-bottom: 1.5px solid var(--gold); padding-bottom: 1px; transition: color 0.2s;
  }
  .blog-link:hover { color: var(--gold); }

  /* blog article (post template) */
  .article-wrap { max-width: 760px; margin: 0 auto; }
  .article-wrap h2 { font-family: 'Playfair Display', serif; font-size: 1.5rem; color: var(--navy); margin: 2.5rem 0 1rem; }
  .article-wrap h3 { font-size: 1.0625rem; color: var(--navy); margin: 1.75rem 0 0.75rem; }
  .article-wrap p { font-size: 1rem; color: var(--gray-dark); line-height: 1.8; margin-bottom: 1.1rem; }
  .article-wrap ul, .article-wrap ol { margin: 0 0 1.1rem 1.5rem; color: var(--gray-dark); line-height: 1.8; font-size: 1rem; }
  .article-wrap a { color: var(--navy); font-weight: 500; }

  /* ===== CATALOG (certifications by market / testing services) ===== */
  .jump-nav { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 1rem; }
  .jump-nav a { font-size: 0.8125rem; padding: 0.35rem 0.8rem; border: 1px solid var(--gray-light); border-radius: 999px; color: var(--navy); text-decoration: none; background: var(--white); transition: border-color 0.15s; }
  .jump-nav a:hover { border-color: var(--gold); }
  .market-h2 { font-family: 'Playfair Display', serif; font-size: 1.35rem; color: var(--navy); margin: 2.6rem 0 0.4rem; display: flex; align-items: baseline; gap: 0.6rem; flex-wrap: wrap; scroll-margin-top: 96px; }
  .market-tag { font-family: 'Inter', sans-serif; font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-mid); border: 1px solid var(--gray-light); border-radius: 999px; padding: 0.12rem 0.6rem; white-space: nowrap; }
  .market-note { color: var(--gray-mid); font-size: 0.875rem; margin: 0 0 1.1rem; max-width: 46rem; }
  .market-note a { color: var(--navy); font-weight: 600; text-decoration: none; border-bottom: 1.5px solid var(--gold); white-space: nowrap; }
  .cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; }
  .cert-card { background: var(--white); border: 1px solid var(--gray-light); border-radius: var(--radius-md); padding: 1rem 1.15rem; display: flex; flex-direction: column; gap: 0.3rem; }
  .cert-type { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gold); }
  .cert-card h4 { color: var(--navy); font-size: 0.9375rem; font-weight: 600; margin: 0; line-height: 1.35; }
  .cert-card p { color: var(--gray-mid); font-size: 0.8125rem; line-height: 1.55; margin: 0; flex: 1; }
  .cert-card a { font-size: 0.75rem; color: var(--navy); text-decoration: none; border-bottom: 1.5px solid var(--gold); align-self: flex-start; margin-top: 0.35rem; }
  @media (max-width: 900px) { .cert-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 620px) { .cert-grid { grid-template-columns: 1fr; } }

  /* ===== PRODUCT GUIDE LINK GRID ===== */
  .plink-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.9rem; }
  .plink { display: flex; flex-direction: column; gap: 0.25rem; background: var(--white);
    border: 1px solid var(--gray-light); border-radius: var(--radius-md); padding: 1rem 1.2rem;
    text-decoration: none; transition: border-color 0.15s, box-shadow 0.15s; }
  .plink:hover { border-color: var(--gold); }
  .plink strong { color: var(--navy); font-size: 0.9375rem; font-weight: 500; }
  .plink span { color: var(--gray-mid); font-size: 0.8125rem; }
  @media (max-width: 640px) { .plink-grid { grid-template-columns: 1fr; } }

  /* ===== BLOG ARTICLE LAYOUT ===== */
  .post-back { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.8125rem;
    color: var(--gray-mid); text-decoration: none; margin-bottom: 1.25rem; }
  .post-back:hover { color: var(--navy); }
  .post-meta { display: flex; flex-wrap: wrap; gap: 0.55rem; align-items: center;
    font-size: 0.8125rem; color: var(--gray-mid); letter-spacing: 0.03em; margin-bottom: 1.75rem; }
  .post-hero-img { width: 100%; height: auto; border-radius: var(--radius-lg); display: block; margin-bottom: 2.25rem; }
  .article-wrap table { width: 100%; border-collapse: collapse; margin: 1.5rem 0 2rem; }
  .article-wrap th { background: var(--off-white); color: var(--navy); text-align: left;
    font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
    padding: 0.75rem 1rem; border-bottom: 1px solid var(--gray-light); }
  .article-wrap td { padding: 0.85rem 1rem; border-bottom: 1px solid var(--gray-light);
    color: var(--gray-dark); font-size: 0.9375rem; line-height: 1.6; vertical-align: top; }
  .article-wrap tr:last-child td { border-bottom: none; }
  .article-wrap strong { color: var(--navy); font-weight: 600; }
  .post-cta { background: var(--off-white); border-left: 3px solid var(--gold);
    border-radius: var(--radius-md); padding: 1.6rem 1.6rem 1.35rem; margin: 2.75rem 0 1rem; }
  .post-cta p { font-size: 0.9375rem; color: var(--gray-dark); line-height: 1.7; margin-bottom: 0.7rem; }
  .post-cta p:last-child { margin-bottom: 0; }
  .post-cta a { color: var(--navy); font-weight: 600; text-decoration: none; border-bottom: 1.5px solid var(--gold); }
  .post-faq h2 { font-family: 'Playfair Display', serif; font-size: 1.4rem; color: var(--navy); margin-bottom: 1.5rem; }
  .post-faq .faq-item { background: var(--white); }

  /* ===== FAQ ===== */
  .faq-list { margin-top: 3rem; max-width: 760px; }
  .faq-item {
    background: var(--white);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1rem;
  }
  .faq-item h4 { font-size: 0.9375rem; font-weight: 600; color: var(--navy); margin-bottom: 0.4rem; }
  .faq-item p { font-size: 0.875rem; color: var(--gray-mid); line-height: 1.65; }