/* ========================
       CSS Variables & Reset
    ======================== */
    :root {
      --navy: #226fb1;
      --navy-mid: #13577c;
      --blue: #1e6dbf;
      --blue-light: #3288e3;
      --accent: #e8a020;
      --accent-light: #f5b840;
      --teal: #1e8a87;
      --white: #ffffff;
      --off-white: #f7f8fb;
      --gray-100: #f0f2f6;
      --gray-200: #e2e6ed;
      --gray-300: #c8cfd9;
      --gray-500: #8898aa;
      --gray-700: #4a5568;
      --gray-900: #1a202c;
      --text-primary: #1a202c;
      --text-secondary: #4a5568;
      --text-light: #718096;
      --radius-sm: 4px;
      --radius: 8px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --shadow-sm: 0 2px 8px rgba(10,34,64,0.08);
      --shadow: 0 4px 20px rgba(10,34,64,0.12);
      --shadow-lg: 0 8px 40px rgba(10,34,64,0.18);
      --transition: 0.28s cubic-bezier(0.4,0,0.2,1);
      --font-serif: 'Noto Serif SC', 'STSong', serif;
      --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: var(--font-sans);
      color: var(--text-primary);
      background: var(--white);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; display: block; }
    a { text-decoration: none; color: inherit; }
    ul, ol { list-style: none; }
    button { cursor: pointer; border: none; background: none; font-family: inherit; }

    /* ========================
       Header & Navigation
    ======================== */
    .site-header {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 1000;
      background: #267DC8;
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255,255,255,0.08);
      transition: box-shadow var(--transition);
    }
    .site-header.scrolled {
      box-shadow: 0 4px 24px rgba(10,34,64,0.25);
    }
    .header-inner {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .logo-icon {
      width: 42px; height: 42px;
      background: linear-gradient(135deg, var(--blue), var(--teal));
      border-radius: var(--radius);
      display: flex; align-items: center; justify-content: center;
      font-size: 20px; font-weight: 900;
      color: white;
      font-family: var(--font-serif);
      box-shadow: 0 2px 12px rgba(45,125,210,0.4);
    }
    .logo-text {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }
    .logo-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--white);
      letter-spacing: 0.02em;
      font-family: var(--font-serif);
    }
    .logo-sub {
      font-size: 11px;
      color: rgba(255,255,255,0.55);
      letter-spacing: 0.06em;
    }
    .main-nav { display: flex; align-items: center; gap: 4px; }
    .nav-link {
      position: relative;
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 500;
      color: rgba(255,255,255,0.78);
      border-radius: var(--radius-sm);
      transition: color var(--transition), background var(--transition);
      white-space: nowrap;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 4px; left: 14px; right: 14px;
      height: 2px;
      background: var(--accent);
      transform: scaleX(0);
      transition: transform var(--transition);
      border-radius: 2px;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--white);
      background: rgba(255,255,255,0.08);
    }
    .nav-link:hover::after, .nav-link.active::after {
      transform: scaleX(1);
    }
    .nav-cta {
      margin-left: 8px;
      padding: 9px 20px;
      background: linear-gradient(135deg, var(--accent), var(--accent-light));
      color: var(--navy) !important;
      font-weight: 700;
      border-radius: var(--radius);
      font-size: 13px;
      box-shadow: 0 2px 12px rgba(232,160,32,0.35);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .nav-cta::after { display: none; }
    .nav-cta:hover {
      transform: translateY(-1px);
      box-shadow: 0 4px 20px rgba(232,160,32,0.5);
      background: linear-gradient(135deg, var(--accent), var(--accent-light)) !important;
    }
    .nav-cta.active {
      background: linear-gradient(135deg, var(--accent), var(--accent-light)) !important;
      box-shadow: inset 0 2px 6px rgba(0,0,0,0.18), 0 2px 8px rgba(200,120,10,0.4);
      transform: translateY(1px);
      color: var(--navy) !important;
    }
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      padding: 8px;
      border-radius: var(--radius-sm);
    }
    .menu-toggle span {
      display: block;
      width: 22px; height: 2px;
      background: white;
      border-radius: 2px;
      transition: transform var(--transition), opacity var(--transition);
    }
    .mobile-nav {
      display: none;
      position: fixed;
      top: 72px; left: 0; right: 0; bottom: 0;
      background: var(--navy);
      z-index: 1001;
      padding: 24px;
      overflow-y: auto;
    }
    .mobile-nav.open { display: block; }
    .mobile-nav .nav-link {
      display: block;
      padding: 14px 16px;
      font-size: 16px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      border-radius: 0;
    }
    .mobile-nav .nav-link::after { display: none; }

    /* ========================
       Page Sections Base
    ======================== */
    .page-section {
      display: none;
    }
    .page-section.active {
      display: block;
      animation: pageEnter 0.5s cubic-bezier(0.4,0,0.2,1) both;
    }
    @keyframes pageEnter {
      from { opacity: 0; transform: translateY(16px) scale(0.995); }
      to { opacity: 1; transform: translateY(0) scale(1); }
    }

    /* ========================
       Hero / Carousel
    ======================== */
    .hero {
      position: relative;
      height: 100vh;
      min-height: 580px;
      max-height: 820px;
      overflow: hidden;
      margin-top: 72px;
    }
    .hero-slides { position: relative; width: 100%; height: 100%; }
    .hero-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.9s cubic-bezier(0.4,0,0.2,1);
    }
    .hero-slide.active { opacity: 1; pointer-events: auto; }
    .hero-slide-bg {
      position: absolute; inset: 0;
      background-size: cover;
      background-position: center;
      transform: scale(1.04);
      transition: transform 7s ease;
    }
    .hero-slide.active .hero-slide-bg { transform: scale(1); }
    .slide-bg-1 { background: linear-gradient(135deg, #112543 0%, #134585 40%, #2073cc 70%, #27b3af 100%); }
    .slide-bg-2 { background: linear-gradient(135deg, #17395e 0%, #244168 40%, #1a4060 70%, #0e3260 100%); }
    .slide-bg-3 { background: linear-gradient(135deg, #0a1e18 0%, #0f3028 40%, #1a5040 70%, #1e8a87 100%); }
    .hero-slide-overlay {
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(10,34,64,0.75) 0%, rgba(10,34,64,0.3) 60%, transparent 100%);
    }
    .hero-content {
      position: absolute;
      left: 0; right: 0; top: 50%;
      transform: translateY(-50%);
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(232,160,32,0.15);
      border: 1px solid rgba(232,160,32,0.4);
      color: var(--accent-light);
      font-size: 12px;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: 100px;
      letter-spacing: 0.08em;
      margin-bottom: 24px;
      backdrop-filter: blur(4px);
    }
    .hero-tag::before { content: '●'; font-size: 6px; }
    .hero-title {
      font-family: var(--font-serif);
      font-size: clamp(32px, 5vw, 64px);
      font-weight: 900;
      color: white;
      line-height: 1.2;
      margin-bottom: 20px;
      letter-spacing: -0.01em;
    }
    .hero-title em {
      font-style: normal;
      color: var(--accent-light);
    }
    .hero-desc {
      font-size: clamp(14px, 1.8vw, 18px);
      color: rgba(255,255,255,0.75);
      max-width: 580px;
      margin-bottom: 40px;
      line-height: 1.8;
    }
    .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      background: linear-gradient(135deg, var(--accent), var(--accent-light));
      color: var(--navy);
      font-weight: 700;
      font-size: 15px;
      border-radius: var(--radius);
      box-shadow: 0 4px 20px rgba(232,160,32,0.4);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 32px rgba(232,160,32,0.55);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      border: 1.5px solid rgba(255,255,255,0.5);
      color: white;
      font-weight: 600;
      font-size: 15px;
      border-radius: var(--radius);
      transition: background var(--transition), border-color var(--transition);
      backdrop-filter: blur(4px);
    }
    .btn-outline:hover {
      background: rgba(255,255,255,0.12);
      border-color: rgba(255,255,255,0.8);
    }
    /* Slide indicators */
    .hero-indicators {
      position: absolute;
      bottom: 32px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 8px;
      z-index: 10;
    }
    .hero-dot {
      width: 8px; height: 8px;
      border-radius: 50%;
      background: rgba(255,255,255,0.35);
      cursor: pointer;
      transition: all var(--transition);
    }
    .hero-dot.active {
      width: 28px;
      border-radius: 4px;
      background: var(--accent);
    }
    /* Scroll hint */
    .scroll-hint {
      position: absolute;
      bottom: 40px;
      right: 40px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      color: rgba(255,255,255,0.5);
      font-size: 11px;
      letter-spacing: 0.1em;
    }
    .scroll-hint-line {
      width: 1px;
      height: 40px;
      background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
      animation: scrollDown 1.8s ease-in-out infinite;
    }
    @keyframes scrollDown {
      0% { transform: scaleY(0); transform-origin: top; }
      50% { transform: scaleY(1); transform-origin: top; }
      51% { transform: scaleY(1); transform-origin: bottom; }
      100% { transform: scaleY(0); transform-origin: bottom; }
    }

    /* ========================
       Stats Bar
    ======================== */
    .stats-bar {
      background: var(--navy);
      padding: 28px 24px;
    }
    .stats-inner {
      max-width: 1280px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stat-item {
      text-align: center;
      padding: 16px;
      border-right: 1px solid rgba(255,255,255,0.1);
    }
    .stat-item:last-child { border-right: none; }
    .stat-num {
      font-family: var(--font-serif);
      font-size: clamp(28px, 3vw, 42px);
      font-weight: 900;
      color: var(--accent-light);
      line-height: 1;
      margin-bottom: 6px;
    }
    .stat-label {
      font-size: 13px;
      color: rgba(255,255,255,0.6);
    }

    /* ========================
       Section Common
    ======================== */
    .section {
      padding: clamp(60px, 8vw, 100px) 24px;
    }
    .section-inner {
      max-width: 1280px;
      margin: 0 auto;
    }
    .section-header {
      text-align: center;
      margin-bottom: clamp(40px, 5vw, 64px);
    }
    .section-overline {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: var(--blue);
      letter-spacing: 0.15em;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .section-title {
      font-family: var(--font-serif);
      font-size: clamp(26px, 3.5vw, 42px);
      font-weight: 900;
      color: var(--navy);
      line-height: 1.25;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 560px;
      margin: 0 auto;
      line-height: 1.8;
    }
    .section-divider {
      width: 48px;
      height: 3px;
      background: linear-gradient(90deg, var(--blue), var(--accent));
      margin: 16px auto 0;
      border-radius: 2px;
    }

    /* ========================
       Advantages / Features Grid
    ======================== */
    .advantages-section { background: var(--off-white); }
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .advantage-card {
      background: white;
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition);
      position: relative;
      overflow: hidden;
      text-align: center;
    }
    .advantage-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--blue), var(--teal));
      transform: scaleX(0);
      transition: transform var(--transition);
    }
    .advantage-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .advantage-card:hover::before { transform: scaleX(1); }
    .advantage-icon {
      width: 52px; height: 52px;
      border-radius: var(--radius);
      background: linear-gradient(135deg, var(--blue), var(--blue-light));
      display: flex; align-items: center; justify-content: center;
      font-size: 24px;
      margin: 0 auto 20px;
      box-shadow: 0 4px 16px rgba(26,95,168,0.25);
    }
    .advantage-title {
      font-family: var(--font-serif);
      font-size: 18px;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 10px;
    }
    .advantage-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.75; }

    /* ========================
       Certificates
    ======================== */
    .certs-section { background: white; }
    .certs-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      max-width: 900px;
      margin: 0 auto;
    }
    .certs-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
    .certs-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
    .cert-card {
      background: var(--gray-100);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition);
      cursor: pointer;
    }
    .cert-card:hover { transform: translateY(-4px) scale(1.02); box-shadow: var(--shadow-lg); }
    .cert-preview {
      aspect-ratio: 3/4;
      background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 50%, var(--teal) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      overflow: hidden;
    }
    .cert-preview::before {
      content: '';
      position: absolute;
      inset: 12px;
      border: 1px solid rgba(255,255,255,0.25);
      border-radius: var(--radius);
    }
    .cert-preview-inner {
      text-align: center;
      color: white;
      padding: 16px;
    }
    .cert-preview-icon { font-size: 36px; margin-bottom: 8px; }
    .cert-preview-text { font-size: 13px; opacity: 0.9; font-family: var(--font-serif); line-height: 1.4; }
    .cert-info { padding: 14px 16px; }
    .cert-name { font-size: 13px; font-weight: 600; color: var(--navy); line-height: 1.4; }
    .cert-num { font-size: 11px; color: var(--text-light); margin-top: 4px; }

    /* ========================
       About Page
    ======================== */
    .about-hero {
      height: 320px;
      background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 60%, var(--teal) 100%);
      display: flex;
      align-items: flex-end;
      padding: 48px 24px;
      margin-top: 72px;
    }
    .about-hero-inner {
      max-width: 1280px;
      margin: 0 auto;
      width: 100%;
    }
    .page-hero-tag {
      font-size: 12px;
      color: rgba(255,255,255,0.6);
      letter-spacing: 0.1em;
      margin-bottom: 12px;
    }
    .page-hero-title {
      font-family: var(--font-serif);
      font-size: clamp(28px, 4vw, 48px);
      font-weight: 900;
      color: white;
    }
    .about-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: start;
    }
    .about-text h3 {
      font-family: var(--font-serif);
      font-size: 22px;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 16px;
    }
    .about-text p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.85;
      margin-bottom: 20px;
    }
    .about-highlights {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }
    .highlight-item {
      padding: 20px;
      background: var(--off-white);
      border-radius: var(--radius);
      border-left: 3px solid var(--blue);
    }
    .highlight-num {
      font-family: var(--font-serif);
      font-size: 28px;
      font-weight: 900;
      color: var(--blue);
      line-height: 1;
    }
    .highlight-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }
    .about-left-col {
      grid-column: 1;
      display: flex;
      flex-direction: column;
    }
    .about-image-side { grid-column: 2; grid-row: 1 / 3; display: flex; flex-direction: column; gap: 16px;align-self: center }
    .about-photo {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      aspect-ratio: 16/9;
      background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
      display: flex; align-items: center; justify-content: center;
      color: white;
      font-size: 14px;
      font-family: var(--font-serif);
    }

    /* ========================
       Business / Services
    ======================== */
    .business-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .business-card {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition);
      cursor: pointer;
    }
    .business-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
    .business-card-header {
      padding: 40px 24px 32px;
      color: white;
      position: relative;
      overflow: hidden;
      width: 100%;
      height: 215px;
    }
    .bc-bg-1 { background: linear-gradient(135deg, #0a2240, #1a5fa8); }
    .bc-bg-2 { background: linear-gradient(135deg, #0d2030, #1e8a87); }
    .bc-bg-3 { background: linear-gradient(135deg, #1a1030, #4a3080); }
    .bc-bg-4 { background: linear-gradient(135deg, #1a0a0a, #8a3020); }
    .bc-bg-5 { background: linear-gradient(135deg, #0a1820, #206080); }
    .bc-bg-6 { background: linear-gradient(135deg, #1a1208, #806020); }
    .business-card-icon { font-size: 40px; margin-bottom: 16px; }
    .business-card-title {
      font-family: var(--font-serif);
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .business-card-sub { font-size: 13px; opacity: 0.75; }
    .business-card-body { padding: 20px 24px; background: white; }
    .business-tags {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 8px;
    }
    .business-tag {
      padding: 6px 8px;
      background: var(--gray-100);
      color: var(--text-secondary);
      font-size: 12px;
      border-radius: 100px;
      border: 1px solid var(--gray-200);
      text-align: center;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    /* ========================
       Service Guide
    ======================== */
    .service-flow {
      display: flex;
      align-items: flex-start;
      gap: 0;
      overflow-x: auto;
      padding-bottom: 16px;
    }
    .service-step {
      flex: 1;
      min-width: 160px;
      text-align: center;
      position: relative;
    }
    .service-step:not(:last-child)::after {
      content: '→';
      position: absolute;
      right: -16px;
      top: 28px;
      font-size: 24px;
      color: var(--blue);
      font-weight: 700;
    }
    .service-step-num {
      width: 56px; height: 56px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--blue), var(--blue-light));
      color: white;
      font-size: 22px;
      font-weight: 900;
      font-family: var(--font-serif);
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 4px 20px rgba(26,95,168,0.35);
    }
    .service-step-title { font-size: 15px; font-weight: 600; color: var(--navy); margin-bottom: 8px; }
    .service-step-desc { font-size: 13px; color: var(--text-light); line-height: 1.6; }
    .faq-list { margin-top: 40px; }
    .faq-item {
      border-bottom: 1px solid var(--gray-200);
    }
    .faq-question {
      padding: 20px 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 15px;
      font-weight: 600;
      color: var(--navy);
      gap: 16px;
    }
    .faq-question:hover { color: var(--blue); }
    .faq-toggle {
      width: 24px; height: 24px;
      border-radius: 50%;
      background: var(--gray-100);
      display: flex; align-items: center; justify-content: center;
      font-size: 16px;
      color: var(--blue);
      flex-shrink: 0;
      transition: transform var(--transition), background var(--transition);
    }
    .faq-item.open .faq-toggle { transform: rotate(45deg); background: var(--blue); color: white; }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
    }
    .faq-item.open .faq-answer { max-height: 300px; }
    .faq-answer p { padding: 0 0 20px; font-size: 14px; color: var(--text-secondary); line-height: 1.8; }

    /* ========================
       Cases
    ======================== */
    .cases-tabs {
      display: flex;
      gap: 8px;
      margin-bottom: 32px;
      flex-wrap: wrap;
    }
    .tab-btn {
      padding: 8px 20px;
      border-radius: 100px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-secondary);
      background: var(--gray-100);
      border: 1.5px solid var(--gray-200);
      transition: all var(--transition);
      cursor: pointer;
    }
    .tab-btn:hover {
      background: var(--gray-200);
      color: var(--text-primary);
      border-color: var(--gray-300);
    }
    .tab-btn.active {
      background: var(--navy);
      color: white;
      border-color: var(--navy);
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: white;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .case-img {
      aspect-ratio: 16/9;
      background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
      display: flex; align-items: center; justify-content: center;
      font-size: 40px;
      position: relative;
    }
    .case-type-badge {
      position: absolute;
      top: 12px; left: 12px;
      padding: 4px 12px;
      background: rgba(10,34,64,0.75);
      color: var(--accent-light);
      font-size: 11px;
      font-weight: 700;
      border-radius: 100px;
      backdrop-filter: blur(4px);
    }
    .case-info { padding: 20px; }
    .case-company { font-size: 13px; color: var(--blue); font-weight: 600; margin-bottom: 6px; }
    .case-title { font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 8px; line-height: 1.4; }
    .case-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }

    /* ========================
       Equipment
    ======================== */
    .equipment-tabs {
      display: flex;
      gap: 4px;
      margin-bottom: 32px;
      background: var(--gray-100);
      padding: 4px;
      border-radius: var(--radius);
      overflow-x: auto;
    }
    .equip-tab {
      padding: 10px 18px;
      border-radius: calc(var(--radius) - 2px);
      font-size: 14px;
      font-weight: 500;
      color: var(--text-secondary);
      cursor: pointer;
      white-space: nowrap;
      transition: all var(--transition);
    }
    .equip-tab.active {
      background: var(--navy);
      color: white;
      box-shadow: 0 2px 8px rgba(10,34,64,0.2);
    }
    .equipment-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .equip-card {
      background: white;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .equip-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
    .equip-img {
      aspect-ratio: 4/3;
      background: linear-gradient(135deg, #f0f4f8, #e2e8f0);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 48px;
    }
    .equip-info { padding: 16px; }
    .equip-name { font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 4px; }
    .equip-model { font-size: 12px; color: var(--text-light); }

    /* ========================
       News
    ======================== */
    .news-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 32px;
      align-items: start;
    }
    .news-featured {
      background: white;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      cursor: pointer;
      transition: box-shadow var(--transition);
    }
    .news-featured:hover { box-shadow: var(--shadow-lg); }
    .news-feat-img {
      background: linear-gradient(135deg, var(--navy), var(--blue));
      display: flex; align-items: center; justify-content: center;
      font-size: 60px;
      position: relative;
      overflow: hidden;
    }
    .news-feat-img img {
      width: 100%;
      display: block;
    }
    .news-feat-body { padding: 28px; }
    .news-cat {
      display: inline-block;
      padding: 3px 10px;
      background: rgba(26,95,168,0.1);
      color: var(--blue);
      font-size: 11px;
      font-weight: 700;
      border-radius: 4px;
      letter-spacing: 0.05em;
      margin-bottom: 12px;
    }
    .news-feat-title {
      font-family: var(--font-serif);
      font-size: 20px;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-feat-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.75; }
    .news-feat-meta { margin-top: 20px; display: flex; align-items: center; gap: 16px; }
    .news-date { font-size: 12px; color: var(--text-light); }
    .news-list { display: flex; flex-direction: column; gap: 12px; }
    .news-item {
      background: white;
      border-radius: var(--radius);
      padding: 16px;
      box-shadow: var(--shadow-sm);
      cursor: pointer;
      display: flex;
      gap: 16px;
      align-items: flex-start;
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .news-item:hover { transform: translateX(4px); box-shadow: var(--shadow); }
    .news-item-date {
      display: flex;
      align-items: center;
      gap: 4px;
      margin-top: 6px;
      font-size: 12px;
      color: var(--text-light);
    }
    .news-item-day { font-size: 12px; font-weight: 600; }
    .news-item-month { font-size: 12px; opacity: 0.8; }
    .news-item-content { flex: 1; }
    .news-item-title { font-size: 14px; font-weight: 600; color: var(--navy); line-height: 1.45; margin-bottom: 4px; }
    .news-item-desc { font-size: 12px; color: var(--text-light); line-height: 1.6; }

    /* ========================
       Contact Page
    ======================== */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: start;
    }
    .contact-info-card {
      background: var(--navy);
      border-radius: var(--radius-xl);
      padding: 40px;
      color: white;
    }
    .contact-info-title {
      font-family: var(--font-serif);
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 32px;
      padding-bottom: 20px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .contact-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
      margin-bottom: 24px;
    }
    .contact-item-icon {
      width: 44px; height: 44px;
      border-radius: var(--radius);
      background: rgba(255,255,255,0.1);
      display: flex; align-items: center; justify-content: center;
      font-size: 20px;
      flex-shrink: 0;
    }
    .contact-item-content {}
    .contact-item-label { font-size: 12px; color: rgba(255,255,255,0.5); margin-bottom: 4px; }
    .contact-item-value { font-size: 15px; color: white; line-height: 1.5; }
    .qr-codes {
      display: flex;
      gap: 20px;
      margin-top: 32px;
      padding-top: 24px;
      border-top: 1px solid rgba(255,255,255,0.1);
    }
    .qr-item { text-align: center; flex: 1; }
    .qr-box {
      width: 100%; aspect-ratio: 1;
      background: white;
      border-radius: var(--radius);
      display: flex; align-items: center; justify-content: center;
      font-size: 40px;
      margin-bottom: 8px;
    }
    .qr-label { font-size: 12px; color: rgba(255,255,255,0.6); }
    .contact-form {
      background: white;
      border-radius: var(--radius-xl);
      padding: 40px;
      box-shadow: var(--shadow);
    }
    .contact-form-title {
      font-family: var(--font-serif);
      font-size: 22px;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 28px;
    }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .form-group { margin-bottom: 20px; }
    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-secondary);
      margin-bottom: 8px;
    }
    .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);
      font-family: var(--font-sans);
      font-size: 14px;
      color: var(--text-primary);
      background: var(--off-white);
      transition: border-color var(--transition), box-shadow var(--transition);
      outline: none;
    }
    .form-group input:focus,
    .form-group textarea:focus,
    .form-group select:focus {
      border-color: var(--blue);
      box-shadow: 0 0 0 3px rgba(26,95,168,0.1);
      background: white;
    }
    .form-group textarea { min-height: 120px; resize: vertical; }
    .form-submit {
      width: 100%;
      padding: 15px;
      background: linear-gradient(135deg, var(--blue), var(--blue-light));
      color: white;
      font-family: var(--font-sans);
      font-size: 16px;
      font-weight: 700;
      border-radius: var(--radius);
      cursor: pointer;
      transition: transform var(--transition), box-shadow var(--transition);
      box-shadow: 0 4px 16px rgba(26,95,168,0.3);
    }
    .form-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(26,95,168,0.4); }
    .map-placeholder {
      margin-top: 48px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      height: 320px;
      background: linear-gradient(135deg, #e8f0f8, #ccdeed);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 12px;
      color: var(--blue);
      font-size: 40px;
      border: 2px dashed var(--gray-200);
    }
    .map-placeholder p { font-size: 14px; color: var(--text-secondary); }

    /* ========================
       Modal / Lightbox
    ======================== */
    .modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(10,22,40,0.75);
      backdrop-filter: blur(6px);
      z-index: 9000;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 20px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
    }
    .modal-overlay.open {
      opacity: 1;
      pointer-events: all;
    }
    .modal-box {
      background: white;
      border-radius: var(--radius-xl);
      width: 100%;
      max-width: 860px;
      max-height: 90vh;
      overflow-y: auto;
      box-shadow: 0 24px 80px rgba(10,22,40,0.4);
      transform: translateY(24px) scale(0.97);
      transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
      position: relative;
    }
    .modal-overlay.open .modal-box {
      transform: translateY(0) scale(1);
    }
    .modal-close {
      position: sticky;
      top: 0;
      right: 0;
      float: right;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--gray-100);
      color: var(--gray-700);
      font-size: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      margin: 16px 16px 0 0;
      z-index: 10;
      border: none;
      transition: background var(--transition), color var(--transition);
    }
    .modal-close:hover { background: var(--navy); color: white; }
    .modal-header {
      padding: 32px 40px 24px;
    }
    .modal-tag {
      display: inline-block;
      padding: 4px 12px;
      background: rgba(26,95,168,0.1);
      color: var(--blue);
      font-size: 11px;
      font-weight: 700;
      border-radius: 4px;
      letter-spacing: 0.05em;
      margin-bottom: 14px;
    }
    .modal-title {
      font-family: var(--font-serif);
      font-size: 24px;
      font-weight: 700;
      color: var(--navy);
      line-height: 1.4;
      margin-bottom: 10px;
    }
    .modal-meta {
      font-size: 13px;
      color: var(--text-light);
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .modal-hero {
      width: 100%;
      aspect-ratio: 16/7;
      background: linear-gradient(135deg, var(--navy), var(--blue));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 80px;
    }
    .modal-body {
      padding: 32px 40px 40px;
    }
    .modal-body h3 {
      font-family: var(--font-serif);
      font-size: 17px;
      font-weight: 700;
      color: var(--navy);
      margin: 28px 0 12px;
    }
    .modal-body h3:first-child { margin-top: 0; }
    .modal-body p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.85;
      margin-bottom: 16px;
    }
    .modal-body ul {
      list-style: disc;
      padding-left: 20px;
      margin-bottom: 16px;
    }
    .modal-body ul li {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.75;
      margin-bottom: 6px;
    }
    .modal-body .highlight-box {
      background: var(--off-white);
      border-left: 4px solid var(--blue);
      padding: 16px 20px;
      border-radius: 0 var(--radius) var(--radius) 0;
      margin: 20px 0;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.75;
    }
    .modal-body .spec-table {
      width: 100%;
      border-collapse: collapse;
      margin: 16px 0;
      font-size: 14px;
    }
    .modal-body .spec-table th,
    .modal-body .spec-table td {
      padding: 12px 16px;
      text-align: left;
      border-bottom: 1px solid var(--gray-200);
    }
    .modal-body .spec-table th {
      background: var(--navy);
      color: white;
      font-weight: 600;
      font-size: 13px;
    }
    .modal-body .spec-table tr:nth-child(even) td { background: var(--gray-100); }
    .modal-nav {
      display: flex;
      gap: 12px;
      padding: 20px 40px 32px;
      border-top: 1px solid var(--gray-100);
    }
    .modal-nav-btn {
      flex: 1;
      padding: 11px 16px;
      border-radius: var(--radius);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all var(--transition);
      text-align: center;
    }
    .modal-nav-btn.primary {
      background: linear-gradient(135deg, var(--blue), var(--blue-light));
      color: white;
      border: none;
    }
    .modal-nav-btn.secondary {
      background: white;
      color: var(--navy);
      border: 1.5px solid var(--gray-200);
    }
    .modal-nav-btn:hover { transform: translateY(-2px); }

    /* Image Lightbox */
    .img-lightbox {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.92);
      z-index: 9999;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 40px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
    }
    .img-lightbox.open { opacity: 1; pointer-events: all; }
    .img-lightbox-inner {
      max-width: 700px;
      width: 100%;
      background: white;
      border-radius: var(--radius-lg);
      overflow: hidden;
      text-align: center;
      padding: 32px;
    }
    .img-lightbox-icon { font-size: 120px; line-height: 1; margin-bottom: 20px; }
    .img-lightbox-image {
      max-width: 100%;
      max-height: 60vh;
      object-fit: contain;
      border-radius: 8px;
      margin-bottom: 20px;
    }
    .img-lightbox-title {
      font-family: var(--font-serif);
      font-size: 20px;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 8px;
    }
    .img-lightbox-sub { font-size: 14px; color: var(--text-secondary); }
    .img-lightbox-close {
      position: fixed;
      top: 20px; right: 24px;
      width: 48px; height: 48px;
      border-radius: 50%;
      background: rgba(255,255,255,0.15);
      color: white;
      font-size: 22px;
      border: none;
      cursor: pointer;
      display: flex; align-items: center; justify-content: center;
    }
    .img-lightbox-close:hover { background: rgba(255,255,255,0.3); }

    /* ========================
       Footer
    ======================== */
    .site-footer {
      background: var(--navy);
      color: white;
      padding: 60px 24px 0;
    }
    .footer-inner {
      max-width: 1280px;
      margin: 0 auto;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .footer-brand {}
    .footer-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 20px;
    }
    .footer-brand-desc {
      font-size: 14px;
      color: rgba(255,255,255,0.55);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .footer-contact-row {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
      font-size: 14px;
      color: rgba(255,255,255,0.7);
    }
    .footer-contact-row span:first-child { font-size: 16px; }
    .footer-heading {
      font-family: var(--font-serif);
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 20px;
      color: white;
    }
    .footer-links { display: flex; flex-direction: column; gap: 10px; }
    .footer-link {
      font-size: 13px;
      color: rgba(255,255,255,0.55);
      transition: color var(--transition);
      cursor: pointer;
    }
    .footer-link:hover { color: var(--accent-light); }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 0;
      font-size: 13px;
      color: rgba(255,255,255,0.4);
      flex-wrap: wrap;
      gap: 8px;
    }

    /* ========================
       Back-to-top
    ======================== */
    .back-to-top {
      position: fixed;
      bottom: 32px; right: 32px;
      width: 44px; height: 44px;
      background: var(--blue);
      color: white;
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 20px;
      cursor: pointer;
      box-shadow: var(--shadow-lg);
      opacity: 0;
      transform: translateY(16px);
      transition: opacity var(--transition), transform var(--transition);
      z-index: 100;
    }
    .back-to-top.visible { opacity: 1; transform: translateY(0); }
    .back-to-top:hover { background: var(--navy); transform: translateY(-2px); }

    /* ========================
       Toast Notification
    ======================== */
    .toast {
      position: fixed;
      bottom: 32px; left: 50%;
      transform: translateX(-50%) translateY(80px);
      background: var(--navy);
      color: white;
      padding: 14px 28px;
      border-radius: var(--radius);
      font-size: 14px;
      font-weight: 500;
      box-shadow: var(--shadow-lg);
      z-index: 2000;
      transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
      white-space: nowrap;
      border-left: 4px solid var(--accent);
    }
    .toast.show { transform: translateX(-50%) translateY(0); }

    /* ========================
       Animations
    ======================== */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(28px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }
    @keyframes fadeInScale {
      from { opacity: 0; transform: scale(0.92); }
      to { opacity: 1; transform: scale(1); }
    }
    @keyframes slideInLeft {
      from { opacity: 0; transform: translateX(-40px); }
      to { opacity: 1; transform: translateX(0); }
    }
    @keyframes slideInRight {
      from { opacity: 0; transform: translateX(40px); }
      to { opacity: 1; transform: translateX(0); }
    }
    @keyframes countUp {
      from { opacity: 0; transform: translateY(12px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @keyframes ripple {
      to { transform: scale(4); opacity: 0; }
    }
    @keyframes pulse-glow {
      0%, 100% { box-shadow: 0 0 0 0 rgba(232,160,32,0.4); }
      50% { box-shadow: 0 0 0 12px rgba(232,160,32,0); }
    }
    @keyframes heroTextReveal {
      from { opacity: 0; transform: translateY(20px); filter: blur(4px); }
      to { opacity: 1; transform: translateY(0); filter: blur(0); }
    }
    @keyframes staggerFade {
      from { opacity: 0; transform: translateY(20px) scale(0.98); }
      to { opacity: 1; transform: translateY(0) scale(1); }
    }
    @keyframes lineGrow {
      from { transform: scaleX(0); }
      to { transform: scaleX(1); }
    }
    @keyframes spinIn {
      from { opacity: 0; transform: rotate(-10deg) scale(0.85); }
      to { opacity: 1; transform: rotate(0) scale(1); }
    }

    .animate-in {
      animation: fadeUp 0.6s cubic-bezier(0.4,0,0.2,1) both;
    }
    .animate-fade {
      animation: fadeIn 0.5s cubic-bezier(0.4,0,0.2,1) both;
    }
    .animate-scale {
      animation: fadeInScale 0.5s cubic-bezier(0.4,0,0.2,1) both;
    }
    .animate-left {
      animation: slideInLeft 0.6s cubic-bezier(0.4,0,0.2,1) both;
    }
    .animate-right {
      animation: slideInRight 0.6s cubic-bezier(0.4,0,0.2,1) both;
    }
    .animate-spin {
      animation: spinIn 0.5s cubic-bezier(0.34,1.56,0.64,1) both;
    }
    .delay-1 { animation-delay: 0.08s; }
    .delay-2 { animation-delay: 0.16s; }
    .delay-3 { animation-delay: 0.24s; }
    .delay-4 { animation-delay: 0.32s; }
    .delay-5 { animation-delay: 0.40s; }
    .delay-6 { animation-delay: 0.48s; }

    /* Scroll reveal system */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.55s cubic-bezier(0.4,0,0.2,1), transform 0.55s cubic-bezier(0.4,0,0.2,1);
    }
    .reveal.revealed {
      opacity: 1;
      transform: translateY(0);
    }
    .reveal-left {
      opacity: 0;
      transform: translateX(-30px);
      transition: opacity 0.55s cubic-bezier(0.4,0,0.2,1), transform 0.55s cubic-bezier(0.4,0,0.2,1);
    }
    .reveal-left.revealed {
      opacity: 1;
      transform: translateX(0);
    }
    .reveal-right {
      opacity: 0;
      transform: translateX(30px);
      transition: opacity 0.55s cubic-bezier(0.4,0,0.2,1), transform 0.55s cubic-bezier(0.4,0,0.2,1);
    }
    .reveal-right.revealed {
      opacity: 1;
      transform: translateX(0);
    }
    .reveal-scale {
      opacity: 0;
      transform: scale(0.94);
      transition: opacity 0.5s cubic-bezier(0.4,0,0.2,1), transform 0.5s cubic-bezier(0.4,0,0.2,1);
    }
    .reveal-scale.revealed {
      opacity: 1;
      transform: scale(1);
    }

    /* Stagger children */
    .stagger-children > * {
      opacity: 0;
      transform: translateY(16px);
      transition: opacity 0.45s cubic-bezier(0.4,0,0.2,1), transform 0.45s cubic-bezier(0.4,0,0.2,1);
    }
    .stagger-children.revealed > * { opacity: 1; transform: translateY(0); }
    /* Stagger delay per child (supports up to 24 items) */
    .stagger-children.revealed > *:nth-child(1)  { transition-delay: 0.00s; }
    .stagger-children.revealed > *:nth-child(2)  { transition-delay: 0.07s; }
    .stagger-children.revealed > *:nth-child(3)  { transition-delay: 0.14s; }
    .stagger-children.revealed > *:nth-child(4)  { transition-delay: 0.21s; }
    .stagger-children.revealed > *:nth-child(5)  { transition-delay: 0.28s; }
    .stagger-children.revealed > *:nth-child(6)  { transition-delay: 0.35s; }
    .stagger-children.revealed > *:nth-child(7)  { transition-delay: 0.42s; }
    .stagger-children.revealed > *:nth-child(8)  { transition-delay: 0.49s; }
    .stagger-children.revealed > *:nth-child(9)  { transition-delay: 0.56s; }
    .stagger-children.revealed > *:nth-child(10) { transition-delay: 0.63s; }
    .stagger-children.revealed > *:nth-child(11) { transition-delay: 0.70s; }
    .stagger-children.revealed > *:nth-child(12) { transition-delay: 0.77s; }
    .stagger-children.revealed > *:nth-child(13) { transition-delay: 0.84s; }
    .stagger-children.revealed > *:nth-child(14) { transition-delay: 0.91s; }
    .stagger-children.revealed > *:nth-child(15) { transition-delay: 0.98s; }
    .stagger-children.revealed > *:nth-child(16) { transition-delay: 1.05s; }
    .stagger-children.revealed > *:nth-child(17) { transition-delay: 1.12s; }
    .stagger-children.revealed > *:nth-child(18) { transition-delay: 1.19s; }
    .stagger-children.revealed > *:nth-child(19) { transition-delay: 1.26s; }
    .stagger-children.revealed > *:nth-child(20) { transition-delay: 1.33s; }
    .stagger-children.revealed > *:nth-child(21) { transition-delay: 1.40s; }
    .stagger-children.revealed > *:nth-child(22) { transition-delay: 1.47s; }
    .stagger-children.revealed > *:nth-child(23) { transition-delay: 1.54s; }
    .stagger-children.revealed > *:nth-child(24) { transition-delay: 1.61s; }

    /* Click ripple effect */
    .ripple-container {
      position: relative;
      overflow: hidden;
    }
    .ripple {
      position: absolute;
      border-radius: 50%;
      background: rgba(255,255,255,0.35);
      transform: scale(0);
      animation: ripple 0.6s linear;
      pointer-events: none;
    }
    .ripple-dark {
      background: rgba(10,34,64,0.15);
    }

    /* Button press feedback */
    .btn-press:active {
      transform: scale(0.96) !important;
      transition: transform 0.1s ease !important;
    }

    /* Card click feedback */
    .card-press:active {
      transform: scale(0.98) !important;
      transition: transform 0.12s ease !important;
    }

    /* Nav link click feedback */
    .nav-press:active {
      opacity: 0.7;
      transition: opacity 0.1s ease;
    }

    /* Page load overlay */
    .page-loader {
      position: fixed;
      inset: 0;
      background: var(--navy);
      z-index: 99999;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 20px;
      transition: opacity 0.5s ease, visibility 0.5s ease;
    }
    .page-loader.done {
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
    }
    .page-loader-icon {
      width: 56px; height: 56px;
      background: linear-gradient(135deg, var(--blue), var(--teal));
      border-radius: var(--radius);
      display: flex; align-items: center; justify-content: center;
      font-size: 28px; font-weight: 900;
      color: white;
      font-family: var(--font-serif);
      animation: fadeInScale 0.4s cubic-bezier(0.34,1.56,0.64,1) both;
    }
    .page-loader-bar {
      width: 140px; height: 3px;
      background: rgba(255,255,255,0.15);
      border-radius: 3px;
      overflow: hidden;
    }
    .page-loader-bar::after {
      content: '';
      display: block;
      width: 40%; height: 100%;
      background: linear-gradient(90deg, var(--accent), var(--accent-light));
      border-radius: 3px;
      animation: loaderSlide 1.2s ease-in-out infinite;
    }
    @keyframes loaderSlide {
      0% { transform: translateX(-100%); }
      50% { transform: translateX(150%); }
      100% { transform: translateX(-100%); }
    }

    /* Tab switch animation */
    .tab-animate-in {
      animation: fadeInScale 0.35s cubic-bezier(0.4,0,0.2,1) both;
    }

    /* ========================
       Responsive
    ======================== */
    @media (max-width: 1024px) {
      .advantages-grid { grid-template-columns: repeat(2, 1fr); }
      .certs-grid, .certs-grid.cols-4, .certs-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
      .business-grid { grid-template-columns: repeat(2, 1fr); }
      .cases-grid { grid-template-columns: repeat(2, 1fr); }
      .equipment-grid { grid-template-columns: repeat(3, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
      .about-content { grid-template-columns: 1fr; gap: 40px; }
      .about-image-side { grid-row: auto; }
      .contact-grid { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .main-nav { display: none; }
      .menu-toggle { display: flex; }
      .advantages-grid { grid-template-columns: 1fr; }
      .certs-grid { grid-template-columns: repeat(2, 1fr); }
      .business-grid { grid-template-columns: 1fr; }
      .cases-grid { grid-template-columns: 1fr; }
      .equipment-grid { grid-template-columns: repeat(2, 1fr); }
      .stats-inner { grid-template-columns: repeat(2, 1fr); }
      .stat-item:nth-child(2) { border-right: none; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .service-flow { flex-direction: column; align-items: center; }
      .service-step::after { display: none; }
      .form-row { grid-template-columns: 1fr; }
      .hero-title { font-size: 28px; }
      .about-highlights { grid-template-columns: 1fr; }
      /* 图文优势卡片在小屏转为上图下文 */
      .adv-imgtext-card { flex-direction: column !important; }
      .adv-imgtext-card .adv-img-block { flex: 0 0 auto !important; min-height: 160px !important; width: 100% !important; }
      .adv-imgtext-card .adv-text-block { padding: 24px !important; }
    }