:root {
      --navy:      #0a1f5c;
      --blue:      #0057b8;
      --blue-mid:  #1a7ad4;
      --blue-sky:  #2196f3;
      --blue-pale: #e3f0fb;
      --cyan:      #00b4d8;
      --white:     #ffffff;
      --gray-bg:   #f5f7fa;
      --gray-line: #dde4ee;
      --text:      #1a1a2e;
      --text-muted:#5a6a80;
      --red:       #e53935;
      --gold:      #f5a623;
      --shadow:    0 4px 24px rgba(0,80,180,.10);
      --shadow-md: 0 8px 36px rgba(0,80,180,.16);
      --radius:    8px;
      --font:      'Noto Sans SC', sans-serif;
      --serif:     'Noto Serif SC', serif;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body { font-family: var(--font); color: var(--text); background: var(--white); font-size: 14px; line-height: 1.7; margin: 0; }
    a { text-decoration: none; }
    img { max-width: 100%; }

    /* ══ TOP UTILITY BAR ══ */
    .top-util { background: var(--navy); color: rgba(255,255,255,.65); font-size: 12px; padding: 5px 0; }
    .top-util a { color: rgba(255,255,255,.65); }
    .top-util a:hover { color: var(--gold); }

    /* ══ HEADER ══ */
    .site-header { background: var(--white); padding: 12px 0; border-bottom: 1px solid var(--gray-line); box-shadow: 0 2px 12px rgba(0,40,100,.07); }
    .logo-wrap { display: flex; align-items: center; gap: 10px; }
    .logo-icon { width: 52px; height: 52px; background: linear-gradient(135deg, var(--blue), var(--navy)); border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .logo-icon svg { width: 34px; height: 34px; }
    .logo-text-main { font-family: var(--serif); font-size: 22px; font-weight: 900; color: var(--blue); line-height: 1.1; }
    .logo-text-sub  { font-size: 11px; color: var(--text-muted); letter-spacing: .08em; margin-top: 1px; }
    .header-search .form-control { border: 1.5px solid var(--gray-line); border-right: none; border-radius: 4px 0 0 4px; font-size: 13px; height: 36px; padding: 0 14px; }
    .header-search .form-control:focus { box-shadow: none; border-color: var(--blue-sky); }
    .header-search .btn-search { background: var(--blue); color: #fff; border: none; border-radius: 0 4px 4px 0; height: 36px; padding: 0 20px; font-size: 13px; font-weight: 600; letter-spacing: .04em; transition: background .2s; }
    .header-search .btn-search:hover { background: var(--navy); }
    .btn-reg { background: var(--blue); color: #fff; border: none; border-radius: 4px; padding: 5px 16px; font-size: 12.5px; transition: background .2s; }
    .btn-reg:hover { background: var(--navy); }
    .btn-login { background: var(--white); color: var(--blue); border: 1.5px solid var(--blue); border-radius: 4px; padding: 5px 16px; font-size: 12.5px; transition: all .2s; }
    .btn-login:hover { background: var(--blue); color: #fff; }

    /* ══ MAIN NAV ══ */
    .main-nav { background: var(--blue); position: sticky; top: 0; z-index: 1000; }
    .main-nav .nav-inner { display: flex; align-items: stretch; }
    .nav-item-wrap { position: relative; }
    .nav-link-item { display: flex; align-items: center; gap: 4px; padding: 13px 20px; color: rgba(255,255,255,.92); font-size: 14px; font-weight: 500; white-space: nowrap; transition: background .2s; cursor: pointer; border: none; background: none; }
    .nav-link-item:hover, .nav-link-item.active { background: var(--navy); color: var(--white); }
    .nav-link-item.home { background: var(--navy); font-weight: 700; }
    .nav-link-item i { font-size: 11px; opacity: .7; }
    /* Dropdown */
    .nav-dropdown { position: absolute; top: 100%; left: 0; min-width: 200px; background: var(--white); border-top: 3px solid var(--blue-sky); box-shadow: var(--shadow-md); border-radius: 0 0 var(--radius) var(--radius); opacity: 0; pointer-events: none; transform: translateY(8px); transition: all .22s; z-index: 999; }
    .nav-item-wrap:hover .nav-dropdown { opacity: 1; pointer-events: all; transform: translateY(0); }
    .nav-dropdown a { display: block; padding: 9px 18px; font-size: 13.5px; color: var(--text); border-bottom: 1px solid var(--gray-line); transition: all .18s; }
    .nav-dropdown a:last-child { border-bottom: none; border-radius: 0 0 var(--radius) var(--radius); }
    .nav-dropdown a:hover { background: var(--blue-pale); color: var(--blue); padding-left: 24px; }
    .nav-dropdown a::before { content: '▸'; margin-right: 6px; color: var(--blue-sky); font-size: 10px; }

    /* ══ HERO CAROUSEL ══ */
    .hero-carousel { position: relative; overflow: hidden; height: 480px; }
    .hero-slides { display: flex; height: 100%; transition: transform .7s cubic-bezier(.4,0,.2,1); }
    .hero-slide { flex-shrink: 0; width: 100%; height: 100%; position: relative; }
    /* Slide 1 - main */
    .slide-1 { background: linear-gradient(135deg, #051238 0%, #0a2470 40%, #0d3a9e 70%, #1056c4 100%); }
    .slide-1::before { content:''; position:absolute; inset:0; background: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='0.04' stroke-width='1'%3E%3Cpath d='M40 0 L80 40 L40 80 L0 40 Z'/%3E%3C/g%3E%3C/svg%3E"); }
    .slide-2 { background: linear-gradient(135deg, #071840 0%, #0a2878 50%, #0e42b0 100%); }
    .slide-3 { background: linear-gradient(135deg, #030e2a 0%, #071840 40%, #0a2878 70%, #0d3a9e 100%); }
    .slide-content { position: absolute; inset: 0; display: flex; align-items: center; }
    .hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; height: 100%; }
    .hero-left { display: flex; flex-direction: column; justify-content: center; padding: 50px 60px 50px 0; color: #fff; }
    .hero-label { font-size: 11.5px; letter-spacing: .18em; color: rgba(255,255,255,.6); font-weight: 700; text-transform: uppercase; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
    .hero-label::before { content: ''; display: inline-block; width: 32px; height: 2px; background: var(--cyan); }
    .hero-title { font-family: var(--serif); font-size: clamp(28px, 4vw, 42px); font-weight: 900; line-height: 1.25; margin-bottom: 12px; text-shadow: 0 2px 12px rgba(0,0,0,.3); }
    .hero-title em { color: var(--cyan); font-style: normal; }
    .hero-sub { font-size: 15px; color: rgba(255,255,255,.75); margin-bottom: 28px; line-height: 1.8; }
    .hero-btn { display: inline-flex; align-items: center; gap: 8px; background: var(--cyan); color: var(--navy); font-weight: 700; font-size: 14px; padding: 11px 28px; border-radius: 4px; transition: all .22s; }
    .hero-btn:hover { background: #fff; color: var(--blue); transform: translateX(4px); }
    .hero-right { display: flex; flex-direction: column; justify-content: center; padding: 40px 0 40px 60px; border-left: 1px solid rgba(255,255,255,.12); }
    .hero-right-title { font-family: var(--serif); font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
    .hero-right-title span { display: inline-block; width: 4px; height: 20px; background: var(--cyan); border-radius: 2px; }
    .hero-right-title em { font-size: 11px; font-style: normal; letter-spacing: .12em; color: rgba(255,255,255,.5); font-family: var(--font); }
    .hero-right-body { font-size: 13.5px; color: rgba(255,255,255,.7); line-height: 1.95; display: -webkit-box; -webkit-line-clamp: 6; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 16px; }
    .hero-more { font-size: 13px; color: var(--cyan); display: inline-flex; align-items: center; gap: 5px; }
    .hero-more:hover { gap: 9px; }
    /* Slide 2 – company intro */
    .company-intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; height: 100%; }
    .company-stat { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
    .stat-box { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15); border-radius: 8px; padding: 16px; text-align: center; }
    .stat-num { font-family: var(--serif); font-size: 30px; font-weight: 900; color: var(--cyan); line-height: 1; }
    .stat-label { font-size: 12px; color: rgba(255,255,255,.6); margin-top: 4px; }
    /* Product slide */
    .product-grid-hero { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
    .product-hero-item { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15); border-radius: 8px; padding: 20px 16px; text-align: center; transition: background .22s; cursor: pointer; }
    .product-hero-item:hover { background: rgba(255,255,255,.15); }
    .phi-icon { font-size: 32px; color: var(--cyan); margin-bottom: 10px; }
    .phi-name { font-size: 14px; font-weight: 600; color: #fff; }
    .phi-desc { font-size: 12px; color: rgba(255,255,255,.55); margin-top: 4px; }
    /* Dots */
    .hero-dots { position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 10; }
    .hero-dot { width: 28px; height: 4px; background: rgba(255,255,255,.3); border-radius: 2px; cursor: pointer; transition: all .3s; }
    .hero-dot.active { background: var(--cyan); width: 42px; }
    /* Arrows */
    .hero-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.25); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; cursor: pointer; z-index: 10; transition: background .2s; }
    .hero-arrow:hover { background: rgba(255,255,255,.3); }
    .hero-arrow.prev { left: 20px; }
    .hero-arrow.next { right: 20px; }

    /* ══ SECTION COMMON ══ */
    .section { padding: 52px 0; }
    .section.gray { background: var(--gray-bg); }
    .sec-head { margin-bottom: 28px; }
    .sec-title { font-family: var(--serif); font-size: clamp(18px,2.5vw,24px); font-weight: 700; color: var(--navy); margin: 0; display: flex; align-items: center; gap: 10px; }
    .sec-title::before { content: ''; display: inline-block; width: 5px; height: 22px; background: linear-gradient(180deg, var(--blue-sky), var(--blue)); border-radius: 3px; }
    .sec-title-en { display: block; font-size: 11px; font-weight: 400; font-family: var(--font); color: var(--text-muted); letter-spacing: .12em; text-transform: uppercase; margin-top: 3px; padding-left: 15px; }
    .more-link { font-size: 13px; color: var(--blue); display: flex; align-items: center; gap: 4px; transition: gap .2s; }
    .more-link:hover { gap: 7px; color: var(--blue-sky); }

    /* ══ FEATURED GRID ══ */
    .feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3px; }
    .feat-item { position: relative; overflow: hidden; cursor: pointer; aspect-ratio: 4/3; }
    .feat-item .fi-bg { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
    .feat-item:hover .fi-bg { transform: scale(1.06); }
    .feat-item .fi-overlay { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0,30,90,.85) 0%, rgba(0,30,90,.2) 55%, transparent 100%); }
    .feat-item:hover .fi-overlay { background: linear-gradient(0deg, rgba(0,80,180,.9) 0%, rgba(0,80,180,.35) 55%, transparent 100%); }
    .feat-item .fi-label { position: absolute; bottom: 0; left: 0; right: 0; padding: 14px 16px; color: #fff; font-size: 15px; font-weight: 700; letter-spacing: .04em; transition: padding .22s; }
    .feat-item:hover .fi-label { padding-bottom: 18px; }
    .feat-item .fi-label small { display: block; font-size: 11px; color: rgba(255,255,255,.65); font-weight: 400; margin-top: 2px; opacity: 0; transform: translateY(4px); transition: all .22s; }
    .feat-item:hover .fi-label small { opacity: 1; transform: translateY(0); }
    /* placeholder bg colors when no real images */
    .fi-ph { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
    .fi-ph-1 { background: linear-gradient(135deg, #0d3a8e, #1565c0); }
    .fi-ph-2 { background: linear-gradient(135deg, #1a237e, #283593); }
    .fi-ph-3 { background: linear-gradient(135deg, #0d47a1, #1976d2); }
    .fi-ph-4 { background: linear-gradient(135deg, #01579b, #0288d1); }
    .fi-ph-5 { background: linear-gradient(135deg, #006064, #00838f); }
    .fi-ph-6 { background: linear-gradient(135deg, #004d40, #00695c); }
    .fi-ph i { font-size: 58px; color: rgba(255,255,255,.18); }

    /* ══ NEWS SECTION ══ */
    .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
    .news-card { background: var(--white); border: 1px solid var(--gray-line); border-radius: var(--radius); overflow: hidden; transition: box-shadow .25s, transform .25s; }
    .news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .nc-img { position: relative; padding-top: 60%; overflow: hidden; background: var(--blue-pale); }
    .nc-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
    .news-card:hover .nc-img img { transform: scale(1.06); }
    .nc-img .nc-ph { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
    .nc-img .nc-ph i { font-size: 36px; color: var(--blue); opacity: .2; }
    .nc-body { padding: 12px 14px 14px; }
    .nc-date { font-size: 11.5px; color: var(--text-muted); margin-bottom: 6px; }
    .nc-title { font-size: 13.5px; font-weight: 600; color: var(--text); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .news-card:hover .nc-title { color: var(--blue); }

    /* ══ CONTENT LIST SECTION ══ */
    .content-section { padding: 42px 0; border-bottom: 1px solid var(--gray-line); }
    .content-section:last-of-type { border-bottom: none; }
    .cs-grid { display: grid; grid-template-columns: 260px 1fr; gap: 32px; align-items: start; }
    .cs-img { border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/3; position: relative; background: var(--blue-pale); }
    .cs-img img { width: 100%; height: 100%; object-fit: cover; }
    .cs-img .cs-ph { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
    .cs-img .cs-ph i { font-size: 56px; opacity: .2; color: var(--blue); }
    .cs-img .cs-tag { position: absolute; top: 10px; left: 10px; background: var(--blue); color: #fff; font-size: 11.5px; font-weight: 700; padding: 3px 10px; border-radius: 3px; letter-spacing: .04em; }
    .cs-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
    .cs-name { font-family: var(--serif); font-size: 18px; font-weight: 700; color: var(--navy); }
    .cs-list { list-style: none; padding: 0; margin: 0; }
    .cs-list li { display: flex; align-items: baseline; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--gray-line); gap: 10px; }
    .cs-list li:last-child { border-bottom: none; }
    .cs-list a { font-size: 14px; color: var(--text); flex: 1; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; transition: color .18s; }
    .cs-list a:hover { color: var(--blue); padding-left: 4px; }
    .cs-list a::before { content: '▸'; color: var(--blue-sky); font-size: 10px; margin-right: 5px; }
    .cs-list .cs-date { font-size: 11.5px; color: var(--text-muted); white-space: nowrap; flex-shrink: 0; }
    .cs-list .cs-badge { font-size: 11px; padding: 1px 8px; border-radius: 3px; flex-shrink: 0; }
    .badge-free { background: #e3f0fb; color: var(--blue); border: 1px solid #c5dcf5; }
    .badge-vip  { background: #fff3e0; color: #e65100; border: 1px solid #ffcc80; }
    .badge-pay  { background: #fce4ec; color: var(--red); border: 1px solid #f48fb1; }

    /* ══ ACCESS BAR ══ */
    .access-bar { background: var(--blue-pale); border: 1px solid #c5dcf5; border-radius: var(--radius); padding: 12px 20px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--text-muted); margin-top: 14px; }
    .access-bar strong { color: var(--navy); }
    .access-btn { font-size: 12.5px; padding: 5px 15px; border-radius: 4px; border: none; cursor: pointer; font-weight: 600; transition: all .2s; }
    .ab-view { background: var(--blue); color: #fff; }
    .ab-view:hover { background: var(--navy); }
    .ab-dl { background: var(--white); color: var(--blue); border: 1.5px solid var(--blue); }
    .ab-dl:hover { background: var(--blue); color: #fff; }
    .ab-share { background: #e8f5e9; color: #2e7d32; border: 1.5px solid #a5d6a7; }
    .ab-share:hover { background: #2e7d32; color: #fff; }
    .ab-reg { background: var(--gold); color: var(--navy); }
    .ab-reg:hover { background: #e0951a; color: #fff; }

    /* ══ REGISTER MODAL HINT ══ */
    .free-hint { background: linear-gradient(90deg, #e3f0fb, #f0f7ff); border-left: 4px solid var(--blue-sky); border-radius: 0 var(--radius) var(--radius) 0; padding: 10px 18px; font-size: 13px; color: var(--navy); display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
    .free-hint i { color: var(--blue-sky); font-size: 18px; flex-shrink: 0; }

    /* ══ INTERACTION / CONSULT ══ */
    .consult-bar { background: linear-gradient(135deg, var(--navy), var(--blue)); padding: 40px 0; color: #fff; }
    .consult-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
    .consult-left h3 { font-family: var(--serif); font-size: 22px; font-weight: 700; margin: 0 0 8px; }
    .consult-left p { font-size: 14px; color: rgba(255,255,255,.7); margin: 0; }
    .consult-btns { display: flex; gap: 12px; flex-wrap: wrap; }
    .c-btn { padding: 11px 24px; border-radius: 5px; font-size: 14px; font-weight: 600; cursor: pointer; border: none; transition: all .22s; display: flex; align-items: center; gap: 7px; }
    .c-btn-primary { background: var(--cyan); color: var(--navy); }
    .c-btn-primary:hover { background: #fff; }
    .c-btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.4); }
    .c-btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }

    /* ══ FOOTER ══ */
    .site-footer { background: var(--navy); color: rgba(255,255,255,.7); padding: 48px 0 0; }
    .footer-logo-text { font-family: var(--serif); font-size: 18px; font-weight: 700; color: #fff; }
    .footer-slogan { font-size: 12.5px; color: rgba(255,255,255,.45); margin-top: 4px; letter-spacing: .06em; }
    .footer-head { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,.12); }
    .footer-links { list-style: none; padding: 0; margin: 0; }
    .footer-links li { margin-bottom: 9px; }
    .footer-links a { font-size: 13.5px; color: rgba(255,255,255,.55); transition: color .2s; display: flex; align-items: center; gap: 5px; }
    .footer-links a::before { content: '›'; color: var(--cyan); font-size: 14px; }
    .footer-links a:hover { color: var(--cyan); }
    .footer-contact li { display: flex; align-items: flex-start; gap: 8px; font-size: 13.5px; color: rgba(255,255,255,.55); margin-bottom: 10px; }
    .footer-contact li i { color: var(--cyan); flex-shrink: 0; margin-top: 3px; }
    .qr-box { width: 100px; height: 100px; background: #fff; border-radius: 6px; display: flex; align-items: center; justify-content: center; margin: 0 auto; }
    .qr-box i { font-size: 60px; color: var(--navy); opacity: .25; }
    .footer-bottom { margin-top: 36px; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.08); font-size: 12px; color: rgba(255,255,255,.35); text-align: center; }
    .footer-bottom a { color: rgba(255,255,255,.4); }
    .footer-bottom a:hover { color: var(--cyan); }

    /* ══ MISC / UTILS ══ */
    #backToTop { position: fixed; bottom: 28px; right: 24px; width: 42px; height: 42px; background: var(--blue); color: #fff; border: none; border-radius: 50%; display: none; align-items: center; justify-content: center; cursor: pointer; box-shadow: 0 4px 16px rgba(0,80,180,.3); font-size: 17px; z-index: 999; transition: background .2s, transform .2s; }
    #backToTop:hover { background: var(--navy); transform: translateY(-3px); }
    /* Login modal */
    .modal-header-blue { background: linear-gradient(135deg, var(--navy), var(--blue)); }
    .modal-input { border: 1.5px solid var(--gray-line); border-radius: 5px; padding: 8px 14px; font-size: 14px; width: 100%; transition: border-color .2s; }
    .modal-input:focus { outline: none; border-color: var(--blue-sky); }
    .free-badge { display: inline-flex; align-items: center; gap: 5px; background: linear-gradient(90deg, var(--blue-sky), var(--cyan)); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 12px; border-radius: 12px; }
    /* Hover highlight */
    .hover-hl { transition: background .18s; }
    .hover-hl:hover { background: var(--blue-pale) !important; }
    /* fade-up anim */
    .fade-up { opacity: 0; transform: translateY(16px); transition: opacity .5s, transform .5s; }
    .fade-up.vis { opacity: 1; transform: none; }

    @media (max-width: 991px) {
      .hero-grid, .company-intro-grid { grid-template-columns: 1fr; }
      .hero-right { display: none; }
      .feat-grid { grid-template-columns: repeat(2, 1fr); }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
      .cs-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 575px) {
      .feat-grid { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: 1fr; }
      .hero-carousel { height: 320px; }
    }