/* ========== CSS Variables — 海隆集团品牌色 ========== */
:root {
  --deep-blue: #0A2540;
  --deep-blue-dark: #071A30;
  --brand-red: #E63946;
  --brand-red-dark: #c1121f;
  --gold: #C9A961;
  --text: #1f2937;
  --text-light: #6b7280;
  --bg: #ffffff;
  --bg-gray: #F6F8FB;
  --border: #e5e7eb;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1120px;
  --nav-height: 64px;
}

/* ========== Reset & Base ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-height)}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif;
  color:var(--text);line-height:1.7;background:var(--bg);
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-title{font-size:2rem;text-align:center;margin-bottom:12px;color:var(--deep-blue);font-weight:800}
.section-title.light{color:#fff}
.section-desc{text-align:center;color:var(--text-light);max-width:650px;margin:0 auto 48px;font-size:1.05rem}
.section-desc.light{color:rgba(255,255,255,0.7)}
.subsection-title{font-size:1.2rem;color:var(--deep-blue);margin:48px 0 24px;padding-bottom:12px;border-bottom:2px solid var(--border)}
.bg-gray{background:var(--bg-gray)}
.bg-dark{background:var(--deep-blue-dark);color:#fff}

/* ========== Buttons ========== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 28px;border-radius:var(--radius);font-size:0.95rem;
  font-weight:600;cursor:pointer;transition:all 0.2s;border:none;
}
.btn-primary{background:var(--brand-red);color:#fff}
.btn-primary:hover{background:var(--brand-red-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,0.4)}
.btn-outline:hover{background:rgba(255,255,255,0.12);border-color:#fff}

/* ========== Navbar ========== */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,0.96);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);height:var(--nav-height);
  transition:box-shadow 0.3s;
}
.navbar.scrolled{box-shadow:var(--shadow)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--nav-height)}
.logo{display:flex;align-items:center;gap:10px;white-space:nowrap}
.logo-img{height:72px;width:auto;object-fit:contain}
.logo-text-nav{font-size:0.95rem;font-weight:700;color:var(--deep-blue);white-space:nowrap}
.logo-tag{font-size:0.72rem;font-weight:500;color:var(--brand-red);background:#fef2f2;padding:2px 8px;border-radius:4px}
.nav-links{display:flex;gap:2px}
.nav-links a{padding:8px 14px;border-radius:var(--radius);font-size:0.88rem;font-weight:500;color:var(--text-light);transition:all 0.2s}
.nav-links a:hover,.nav-links a.active{color:var(--brand-red);background:#fef2f2}
.nav-actions{display:flex;align-items:center;gap:8px}
.search-toggle,.menu-toggle{background:none;border:none;cursor:pointer;padding:8px;border-radius:var(--radius);color:var(--text-light);transition:all 0.2s;display:flex;align-items:center}
.search-toggle:hover,.menu-toggle:hover{color:var(--brand-red);background:#fef2f2}
.menu-toggle{display:none;flex-direction:column;gap:5px;padding:10px 8px}
.menu-toggle span{display:block;width:22px;height:2px;background:currentColor;border-radius:2px;transition:all 0.3s}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Search Panel */
.search-panel{max-height:0;overflow:hidden;transition:max-height 0.3s ease;background:var(--bg);border-bottom:1px solid var(--border)}
.search-panel.open{max-height:80px}
.search-panel .container{padding:12px 24px}
.search-panel input{width:100%;padding:10px 16px;border:2px solid var(--border);border-radius:var(--radius);font-size:1rem;outline:none;transition:border-color 0.2s}
.search-panel input:focus{border-color:var(--deep-blue)}
.search-hint{display:block;font-size:0.8rem;color:var(--text-light);margin-top:4px}
mark{background:#fef08a;color:var(--text);padding:1px 3px;border-radius:2px}

/* ========== Hero ========== */
.hero{
  position:relative;min-height:520px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--deep-blue-dark) 0%,var(--deep-blue) 45%,#1a3a5c 100%);
  color:#fff;text-align:center;margin-top:var(--nav-height);overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background:url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cpattern id='g' width='60' height='60' patternUnits='userSpaceOnUse'%3E%3Cpath d='M12 10V0H0v20h20V10H12z' fill='rgba(255,255,255,0.015)'/%3E%3C/pattern%3E%3C/defs%3E%3Crect fill='url(%23g)' width='60' height='60'/%3E%3C/svg%3E");
}
.hero-img-layer{
  position:absolute;inset:0;pointer-events:none;opacity:0.08;
  background:url("materials/website image/roll to roll inkjet system.jpg") center/cover no-repeat;
}
.hero .container{position:relative;z-index:1}
.hero-logo{height:112px;width:auto;margin:0 auto 20px;filter:brightness(0) invert(1);opacity:0.9}
.hero-since{font-size:0.9rem;letter-spacing:3px;opacity:0.7;margin-bottom:12px;text-transform:uppercase}
.hero h1{font-size:clamp(2.4rem,5vw,3.6rem);font-weight:900;margin-bottom:20px;letter-spacing:-1px}
.hero-divider{color:var(--brand-red)}
.hero-subtitle{font-size:1.1rem;opacity:0.85;max-width:700px;margin:0 auto 36px;line-height:1.9}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.hero-stats{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;padding-top:20px;border-top:1px solid rgba(255,255,255,0.12);position:relative;z-index:1}
.stat-item{text-align:center}
.stat-num{display:block;font-size:1.6rem;font-weight:800;color:var(--gold)}
.stat-label{display:block;font-size:0.82rem;opacity:0.65;margin-top:2px}

/* ========== About ========== */
.about-intro{text-align:center;margin-bottom:40px}
.about-lead{font-size:1.15rem;color:var(--text);max-width:750px;margin:0 auto;line-height:1.8}
.about-group{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:48px}
.about-text h3{margin-bottom:14px;color:var(--deep-blue);font-size:1.15rem;font-weight:700}
.about-text p{margin-bottom:10px;color:var(--text-light);line-height:1.8}
.about-text p strong{color:var(--text)}
.mv-block{background:var(--bg-gray);border-radius:var(--radius);padding:16px 20px;margin-bottom:16px}
.mv-block p{margin-bottom:6px}
.value-list li{padding:6px 0;font-size:0.93rem;color:var(--text-light);border-bottom:1px solid var(--border)}
.value-list li strong{color:var(--deep-blue)}

/* ========== Org Chart ========== */
.org-chart{margin-top:20px}
.org-chart h3{text-align:center;margin-bottom:24px;color:var(--deep-blue);font-size:1.1rem}
.org-diagram{max-width:750px;margin:0 auto}
.org-core{text-align:center;padding:16px 24px;background:var(--deep-blue);color:#fff;border-radius:var(--radius-lg);font-weight:700;font-size:1.1rem;margin-bottom:20px}
.org-core small{display:block;font-weight:400;opacity:0.75;margin-top:2px;font-size:0.8rem}
.org-branches{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}
.org-branch{text-align:center;padding:14px;border-radius:var(--radius-lg);border:2px solid var(--border);font-weight:600;font-size:0.9rem;transition:transform 0.2s}
.org-branch:hover{transform:translateY(-2px)}
.org-branch small{display:block;font-weight:400;color:var(--text-light);font-size:0.75rem;margin-top:4px}
.org-icon{display:block;margin:0 auto 8px;flex-shrink:0}
.org-rnd{border-color:var(--deep-blue);background:#f0f5fb}
.org-factory{border-color:#8b5cf6;background:#f5f3ff}
.org-sales1{border-color:#059669;background:#ecfdf5}
.org-sales2{border-color:var(--brand-red);background:#fef2f2}

/* ========== Tech Pillars (dark bg + card images) ========== */
.tech-section{position:relative;overflow:hidden}
.tech-bg-layer{
  position:absolute;inset:0;pointer-events:none;opacity:0.05;
  background:url("materials/website image/Kyocera r2r printer.jpg") center/cover no-repeat fixed;
}
.tech-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;position:relative;z-index:1}
.tech-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background-size:cover;background-position:center;
  min-height:320px;transition:transform 0.3s;
}
.tech-card:hover{transform:translateY(-4px)}
.tech-card-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,26,48,0.88) 0%,rgba(7,26,48,0.92) 100%);
}
.tech-card-content{position:relative;z-index:1;padding:32px;color:#fff}
.tech-num{font-size:3rem;font-weight:900;color:var(--gold);opacity:0.5;line-height:1;margin-bottom:8px}
.tech-card-content h3{font-size:1.25rem;margin-bottom:4px}
.tech-sub{font-size:0.88rem;color:var(--gold);margin-bottom:14px}
.tech-card-content ul{display:flex;flex-direction:column;gap:6px}
.tech-card-content ul li{font-size:0.9rem;opacity:0.85;padding-left:16px;position:relative;line-height:1.6}
.tech-card-content ul li::before{content:'>';position:absolute;left:0;color:var(--gold);font-weight:700;opacity:0.6}
.tech-card-content ul li strong{color:#fff;opacity:1}

/* ========== Business Sectors ========== */
.sectors-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.sector-card{
  background:var(--bg);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--border);
  transition:transform 0.2s,box-shadow 0.2s;
  position:relative;
}
.sector-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.sector-img{height:200px;background-size:cover;background-position:center}
.sector-img-overlay{
  position:absolute;top:130px;left:0;right:0;height:70px;
  background:linear-gradient(180deg,transparent 0%,rgba(255,255,255,0.05) 50%,rgba(255,255,255,0.95) 100%);
  pointer-events:none;
}
.sector-body{padding:24px;position:relative;z-index:1;background:var(--bg)}
.sector-badge{font-size:0.7rem;font-weight:700;letter-spacing:2px;color:var(--brand-red);margin-bottom:6px;text-transform:uppercase}
.sector-card h3{font-size:1.15rem;margin-bottom:8px;color:var(--deep-blue)}
.sector-body p{color:var(--text-light);font-size:0.9rem;margin-bottom:14px;line-height:1.7}
.sector-industries{display:flex;flex-wrap:wrap;gap:6px}
.sector-industries span{background:var(--bg-gray);padding:3px 10px;border-radius:20px;font-size:0.78rem;color:var(--text-light)}

/* ========== Products ========== */
.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:20px}
.product-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--border);min-height:260px;
  transition:transform 0.2s,box-shadow 0.2s;
}
.product-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.product-card-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transition:transform 0.4s;
}
.product-card:hover .product-card-bg{transform:scale(1.05)}
.product-card-overlay{
  position:absolute;bottom:0;left:0;right:0;height:65%;
  background:linear-gradient(180deg,transparent 0%,rgba(255,255,255,0.05) 15%,rgba(255,255,255,0.95) 40%);
  pointer-events:none;
}
.product-card-body{
  position:relative;z-index:1;display:flex;flex-direction:column;
  align-items:center;justify-content:flex-end;height:100%;padding:0 14px 18px;text-align:center;
}
.product-card-body .product-header{margin-bottom:4px}
.product-header{display:flex;align-items:center;justify-content:center;gap:8px}
.planet{font-size:1rem;font-weight:800;padding:4px 14px;border-radius:20px;color:#fff}
.planet.mercury{background:#8b5cf6}
.planet.jupiter{background:#f59e0b}
.planet.mars{background:#ef4444}
.planet.saturn{background:#6366f1}
.planet.neptune{background:#0891b2}
.product-tech{font-size:0.78rem;color:var(--brand-red);font-weight:600;margin:4px 0 8px}
.product-card-body p{font-size:0.82rem;color:var(--text-light);line-height:1.5}

/* Sub Products */
.sub-products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.sub-product-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--border);min-height:270px;
  background-size:cover;background-position:center;
  transition:transform 0.2s,box-shadow 0.2s;
}
.sub-product-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);background-size:105%}
.sub-product-overlay{
  position:absolute;bottom:0;left:0;right:0;height:65%;
  background:linear-gradient(180deg,transparent 0%,rgba(255,255,255,0.05) 15%,rgba(255,255,255,0.95) 40%);
  pointer-events:none;
}
.sub-product-body{
  position:relative;z-index:1;display:flex;flex-direction:column;
  justify-content:flex-end;height:100%;padding:18px 22px;gap:6px;
}
.sub-product-body h4{font-size:0.95rem;color:var(--deep-blue)}
.sub-product-body p{font-size:0.82rem;color:var(--text-light);line-height:1.5}
.sub-product-body .sub-tag{align-self:flex-start;font-size:0.7rem;font-weight:600;padding:2px 10px;border-radius:12px;background:var(--deep-blue);color:#fff}

/* ========== Cases ========== */
.cases-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.case-card{background:var(--bg);padding:24px;border-radius:var(--radius-lg);box-shadow:var(--shadow);border-left:4px solid var(--deep-blue)}
.case-card h4{font-size:1.05rem;margin-bottom:4px;color:var(--deep-blue)}
.case-tag{font-size:0.8rem;color:var(--brand-red);font-weight:600;margin-bottom:8px}
.case-card > p{font-size:0.9rem;color:var(--text-light);line-height:1.7}

/* ========== Customer Logo Wall ========== */
.customer-categories{display:flex;flex-direction:column;gap:28px}
.customer-cat{display:flex;align-items:flex-start;gap:20px}
.customer-cat h4{font-size:0.9rem;color:var(--deep-blue);min-width:90px;padding-top:6px;flex-shrink:0}
.customer-logos{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.logo-item{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 22px;height:80px;display:flex;align-items:center;justify-content:center;
  transition:all 0.3s;
  filter:grayscale(1);opacity:0.65;
}
.logo-item:hover{filter:grayscale(0);opacity:1;border-color:var(--deep-blue);box-shadow:var(--shadow-md)}
.logo-item img{max-height:52px;max-width:130px;object-fit:contain}

/* ========== Certifications ========== */
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.cert-item{text-align:center;padding:24px;border-radius:var(--radius-lg);border:1px solid var(--border);transition:transform 0.2s}
.cert-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.cert-icon{display:flex;justify-content:center;margin-bottom:8px;color:var(--gold)}
.cert-icon svg{flex-shrink:0}
.cert-item h4{font-size:0.95rem;color:var(--deep-blue);margin-bottom:4px}
.cert-item p{font-size:0.82rem;color:var(--text-light)}

/* ========== Tools ========== */
.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(380px,1fr));gap:24px}
.tool-card{background:var(--bg);padding:32px;border-radius:var(--radius-lg);box-shadow:var(--shadow);border:1px solid var(--border)}
.tool-title{display:flex;align-items:center;gap:10px;font-size:1.15rem;margin-bottom:8px;color:var(--text)}
.tool-title svg{color:var(--brand-red);flex-shrink:0}
.tool-desc{color:var(--text-light);font-size:0.9rem;margin-bottom:20px}
.tool-form{display:flex;flex-direction:column;gap:14px}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group label{font-size:0.88rem;font-weight:500;color:var(--text)}
.form-group input,.form-group select,.form-group textarea{
  padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius);
  font-size:0.95rem;font-family:inherit;outline:none;transition:border-color 0.2s;background:var(--bg);
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--deep-blue)}
.tool-result{padding:14px 18px;background:#f0f5fb;border-radius:var(--radius);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.result-label{font-weight:500;font-size:0.95rem}
.result-value{font-size:1.4rem;font-weight:700;color:var(--deep-blue)}
.tool-note{margin-top:-4px;font-size:0.82rem;color:var(--text-light);line-height:1.5}
.form-hint{font-size:0.8rem;color:var(--text-light);margin-top:-6px}

/* Ink Calculator Specific */
.ink-types-grid{display:flex;flex-direction:column;gap:8px}
.ink-type-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ink-type-label{font-weight:600;font-size:0.88rem;min-width:48px;color:var(--deep-blue)}
.input-sm{width:80px;padding:8px 10px!important}
.input-xs{width:56px;padding:6px 8px!important;text-align:center}
.ink-cov{font-size:0.82rem;color:var(--text-light);white-space:nowrap;display:flex;align-items:center;gap:4px}
.tool-warning{
  display:flex;align-items:flex-start;gap:10px;padding:14px 18px;
  background:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius);
  font-size:0.8rem;color:#b91c1c;line-height:1.6;
}
.tool-warning svg{flex-shrink:0;margin-top:1px}
.tool-warning span{flex:1}

/* ========== Contact ========== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:24px}
.contact-item{display:flex;align-items:flex-start;gap:14px}
.contact-item svg{color:var(--brand-red);flex-shrink:0;margin-top:2px}
.contact-item h4{font-size:0.95rem;margin-bottom:2px;color:var(--deep-blue)}
.contact-item p{color:var(--text-light);font-size:0.92rem}
.contact-qr{align-items:center}
.qr-img{max-width:160px;max-height:160px;object-fit:contain;border-radius:var(--radius);border:1px solid var(--border)}
.contact-form{display:flex;flex-direction:column;gap:14px}
.contact-form .btn{align-self:flex-start;margin-top:4px}
.contact-form textarea{resize:vertical;min-height:100px}

/* ========== Footer ========== */
.footer{background:var(--deep-blue-dark);color:rgba(255,255,255,0.55);text-align:center;padding:36px 0;font-size:0.86rem;line-height:2}
.footer-slogan{font-size:1.1rem;color:var(--gold);font-weight:600;letter-spacing:2px;margin-bottom:8px}
.footer-domain{font-size:0.8rem;opacity:0.5}
.footer-icp{font-size:0.78rem;opacity:0.5}
.footer-icp a{color:rgba(255,255,255,0.55);transition:color 0.2s}
.footer-icp a:hover{color:var(--gold)}

/* ========== No Results ========== */
.no-results{display:none;text-align:center;padding:24px;color:var(--text-light);font-size:0.95rem}
.no-results.show{display:block}

/* ========== Responsive ========== */
@media(max-width:768px){
  .section{padding:56px 0}
  .section-title{font-size:1.5rem}
  .nav-links{
    position:fixed;top:var(--nav-height);left:0;right:0;
    background:var(--bg);flex-direction:column;padding:12px;
    border-bottom:1px solid var(--border);
    transform:translateY(-120%);opacity:0;transition:all 0.3s;
    box-shadow:var(--shadow-lg);max-height:70vh;overflow-y:auto;
  }
  .nav-links.open{transform:translateY(0);opacity:1}
  .nav-links a{padding:12px 16px;width:100%}
  .menu-toggle{display:flex}
  .hero{min-height:400px}
  .hero h1{font-size:1.7rem}
  .hero-subtitle{font-size:0.95rem}
  .hero-stats{gap:20px}
  .stat-num{font-size:1.3rem}
  .hero-logo{height:72px}
  .about-group{grid-template-columns:1fr}
  .org-branches{grid-template-columns:repeat(2,1fr)}
  .tech-grid{grid-template-columns:1fr}
  .sectors-grid{grid-template-columns:1fr}
  .products-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
  .sub-products-grid{grid-template-columns:1fr}
  .cases-grid{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .tools-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .customer-cat{flex-direction:column;gap:10px}
  .customer-cat h4{min-width:auto}
  .logo-item{padding:12px 16px;height:64px}
  .logo-item img{max-height:40px;max-width:100px}
}

@media(max-width:480px){
  .container{padding:0 16px}
  .hero-btns{flex-direction:column;align-items:center}
  .btn{width:100%;justify-content:center}
  .hero{min-height:360px}
  .hero h1{font-size:1.4rem}
  .hero-stats{flex-direction:column;gap:14px}
  .hero-logo{height:56px}
  .org-branches{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:1fr}
  .sub-product-card{min-height:240px}
}