Water Treatment · Application
Cooling Tower Water Treatment
From make-up water to blowdown, we enable intelligent water and chemical management through automated chemical dosing, conductivity and pH control, online water quality monitoring, biofilm and corrosion detection, and advanced cooling water management technologies.
:root {
--accent: #800059;
--accent-dk: #5A003E;
--accent-tint: #FAEEF5;
--cta-bg: #FEBE4F;
--cta-text: #331A00;
--dark-bg: #2A001D;
--dark-border: rgba(255,255,255,0.12);
--dark-muted: rgba(255,255,255,0.7);
--bg: #FFFFFF;
--bg-section: #F8F9FA;
--bg-alt: #F3F4F6;
--text: #111827;
--muted: #4B5563;
--border: #E5E7EB;
--container: 1240px;
--transition: 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: clip; width: 100%; margin: 0; padding: 0; }
body {
font-family: 'Inter', system-ui, sans-serif;
background: var(--bg);
color: var(--text);
font-size: 16px;
line-height: 1.7;
-webkit-font-smoothing: antialiased;
overflow-x: clip;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 40px; position: relative; z-index: 2; }
section { padding: 100px 0; position: relative; }
.label { font-size: 14px; font-weight: 600; letter-spacing: 0.05em; color: var(--accent); text-transform: uppercase; display: inline-block; margin-bottom: 8px; }
.section-heading { font-family: 'Outfit', system-ui, sans-serif; font-size: clamp(32px, 4vw, 40px); font-weight: 600; letter-spacing: -0.02em; line-height: 1.15; color: var(--text); margin-top: 4px; }
.section-sub { font-size: 17px; color: var(--muted); max-width: 680px; margin-top: 18px; line-height: 1.6; }
.section-head-wrap { margin-bottom: 56px; }
/* ── BUTTONS ── */
.btn {
display: inline-flex; align-items: center; justify-content: center; gap: 8px;
font-size: 14px; font-weight: 600; border-radius: 4px; padding: 14px 32px;
transition: var(--transition); white-space: nowrap; position: relative; overflow: hidden;
backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.btn::after {
content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%;
background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.2) 50%, rgba(255,255,255,0) 100%);
transform: skewX(-25deg); transition: left 0.6s cubic-bezier(0.22, 1, 0.36, 1); pointer-events: none;
}
.btn:hover::after { left: 150%; }
.btn-accent { background: linear-gradient(135deg, #ffd080 0%, #FEBE4F 100%); color: var(--cta-text); box-shadow: 0 4px 12px rgba(254,190,79,0.2); border: 1px solid rgba(255,255,255,0.3); }
.btn-accent:hover { background: linear-gradient(135deg, #ffe9a8 0%, #ffd080 100%); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(254,190,79,0.3); }
.btn-dark { background: linear-gradient(135deg, #9b006c 0%, #800059 100%); color: #fff; box-shadow: 0 4px 12px rgba(128,0,89,0.2); border: 1px solid rgba(255,255,255,0.1); }
.btn-dark:hover { background: linear-gradient(135deg, #b3007c 0%, #9b006c 100%); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(128,0,89,0.3); }
.btn-ghost { background: transparent; color: var(--accent); border: 1px solid rgba(128,0,89,0.25); padding: 10px 20px; font-size: 13px; font-weight: 600; border-radius: 4px; display: inline-flex; align-items: center; gap: 6px; transition: all 0.2s; }
.btn-ghost:hover { background: var(--accent-tint); border-color: var(--accent); }
/* ── NAV ── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: 76px; background: transparent; border-bottom: 1px solid transparent; transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease; }
.nav.scrolled { background: rgba(77,0,54,0.95); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255,255,255,0.08); box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.nav-inner { max-width: var(--container); margin: 0 auto; padding: 0 40px; height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav-logo img { height: 42px; width: auto; }
.nav-menu { display: flex; align-items: center; gap: 32px; }
.nav-item { position: relative; height: 76px; display: flex; align-items: center; }
.nav-link { font-size: 14px; font-weight: 500; color: rgba(255, 255, 255, 0.9); display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); text-shadow: 0 1px 4px rgba(0,0,0,0.3); }
.nav-link:hover { color: var(--cta-bg); }
.nav-item:hover .nav-link svg { transform: rotate(180deg); transition: transform 0.3s ease; }
.dropdown { position: absolute; top: 76px; left: -16px; min-width: 320px; background: var(--bg); border: 1px solid var(--border); box-shadow: 0 12px 40px rgba(0,0,0,0.08); border-radius: 6px; padding: 12px; opacity: 0; visibility: hidden; transform: translateY(12px); transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), visibility 0.3s; max-height: 70vh; overflow-y: auto; }
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { display: block; font-size: 14px; font-weight: 500; color: var(--muted); padding: 10px 16px; border-radius: 4px; transition: var(--transition); }
.dropdown a:hover { color: var(--accent); background: var(--accent-tint); padding-left: 20px; text-shadow: none; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 6px; z-index: 2001; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #fff; transition: var(--transition); }
.mobile-menu { position: fixed; top: 0; left: 0; right: 0; bottom: 0; width: 100%; height: 100%; z-index: 2000; background: var(--dark-bg); padding: 80px 32px 40px; transform: translateX(100%); transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1); overflow-y: auto; display: flex; flex-direction: column; }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-close { position: absolute; top: 24px; right: 28px; font-size: 32px; color: #fff; padding: 8px; line-height: 1; border: none; background: transparent; cursor: pointer; }
.mobile-group { margin-bottom: 24px; }
.mobile-group span { display: block; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--cta-bg); margin-bottom: 12px; }
.mobile-group a { display: block; font-size: 16px; color: #fff; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.1); text-decoration: none; }
.mobile-group a:last-child { border-bottom: none; }
.mobile-menu .btn { width: 100%; margin-top: 16px; }
/* ── HERO — matches T1/Market T1-T2 standard ── */
.page-hero { background: linear-gradient(135deg, rgba(42,0,29,1) 0%, rgba(128,0,89,0.85) 100%); padding: 130px 0 0; position: relative; overflow: hidden; min-height: 550px; }
.page-hero::before { content: ''; position: absolute; inset: 0; z-index: 2; background: linear-gradient(135deg, rgba(42,0,29,0.95) 0%, rgba(128,0,89,0.75) 100%); }
.page-hero-inner { position: relative; z-index: 2; padding-bottom: 0; }
.page-hero-label { display: block; color: var(--cta-bg); font-size: 13px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 16px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; font-size: 13px; color: rgba(255,255,255,0.45); flex-wrap: wrap; }
.breadcrumb a { color: rgba(255,255,255,0.45); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--cta-bg); }
.breadcrumb-sep { color: rgba(255,255,255,0.25); }
.page-hero h1 {
font-family: 'Outfit', system-ui, sans-serif;
font-size: 56px; font-weight: 700;
color: #fff; letter-spacing: -0.02em; line-height: 1.08; margin: 0 0 24px;
}
.page-hero-desc { font-size: 17px; color: rgba(255,255,255,0.7); line-height: 1.65; max-width: 580px; margin-bottom: 40px; }
.page-hero-ctas { display: flex; gap: 16px; justify-content: flex-start; flex-wrap: wrap; }
.btn-white-ghost { background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.3); color: #fff; }
.btn-white-ghost:hover { background: rgba(255, 255, 255, 0.15); border-color: #fff; transform: translateY(-2px); }
/* ── DESCRIPTION / OVERVIEW ── */
.overview-section { background: var(--bg-section); }
.overview-box {
background: var(--bg); border: 1px solid var(--border); border-radius: 16px;
padding: 56px; box-shadow: 0 2px 16px rgba(0,0,0,0.04);
}
.overview-box .label { margin-bottom: 16px; }
.overview-box h2 { font-family: 'Outfit', system-ui, sans-serif; font-size: clamp(28px, 3vw, 36px); font-weight: 700; color: var(--text); letter-spacing: -0.01em; line-height: 1.2; margin-bottom: 20px; }
.overview-box p { font-size: 17px; color: var(--muted); line-height: 1.8; margin-bottom: 20px; max-width: 760px; }
.overview-box p:last-of-type { margin-bottom: 0; }
.overview-related { margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.overview-related-label { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.overview-related-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.product-chip { font-size: 13px; font-weight: 600; color: var(--accent); background: var(--accent-tint); border: 1px solid rgba(128,0,89,0.15); padding: 6px 14px; border-radius: 4px; transition: all 0.2s; }
.product-chip:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
/* ── CASE STUDIES ── */
.cases-section { background: var(--bg); }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.case-card {
display: flex; flex-direction: column; text-decoration: none;
border-radius: 12px; overflow: hidden; background: var(--bg);
border: 1px solid var(--border); transition: all 0.3s ease;
}
.case-card:hover { transform: translateY(-6px); box-shadow: 0 16px 32px rgba(0,0,0,0.06); border-color: rgba(128, 0, 89, 0.2); }
.case-card-img { aspect-ratio: 4/3; overflow: hidden; background: var(--bg-alt); }
.case-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.case-card:hover .case-card-img img { transform: scale(1.05); }
.case-card-body { padding: 20px 24px 24px; display: flex; flex-direction: column; gap: 8px; }
.case-card-tag { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.case-card-body h3 { font-family: 'Outfit', system-ui, sans-serif; font-size: 18px; font-weight: 700; color: var(--text); letter-spacing: -0.01em; line-height: 1.3; }
.case-card-body p { font-size: 14px; color: var(--muted); line-height: 1.6; }
/* ── LATEST RESOURCES — matches T4/T5 ── */
.related-label { font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; }
.resources-section { background: var(--bg-section); }
.resources-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 36px; }
.resources-title { font-family: 'Outfit', sans-serif; font-size: 28px; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.resources-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.resource-card { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 24px; display: flex; flex-direction: column; gap: 10px; transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s; position: relative; overflow: hidden; }
.resource-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; opacity: 0; transition: opacity 0.3s; }
.resource-card.type-article::before { background: var(--accent); }
.resource-card.type-case::before { background: var(--cta-bg); }
.resource-card:hover { border-color: rgba(128,0,89,0.25); box-shadow: 0 10px 28px rgba(0,0,0,0.06); transform: translateY(-4px); }
.resource-card:hover::before { opacity: 1; }
.resource-card-tag { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.resource-card.type-article .resource-card-tag { color: var(--accent); }
.resource-card.type-case .resource-card-tag { color: #b38000; }
.resource-card-title { font-family: 'Outfit', sans-serif; font-size: 15px; font-weight: 700; color: var(--text); line-height: 1.35; letter-spacing: -0.01em; flex: 1; }
.resource-card-meta { font-size: 12px; color: var(--muted); padding-top: 12px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.resource-card-link { font-size: 12px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 5px; transition: gap 0.2s; }
.resource-card:hover .resource-card-link { gap: 8px; }
/* ── FOOTER (matches T1-T5 standard) ── */
.footer { background: var(--dark-bg); padding-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 2.2fr; gap: 40px; }
.footer-logo { height: 40px; width: auto; margin-bottom: 24px; filter: brightness(0) invert(1); }
.footer-brand .tagline { font-size: 15px; color: var(--dark-muted); margin-bottom: 16px; max-width: 280px; line-height: 1.4; }
.footer-contact li { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 6px; font-size: 14px; color: var(--dark-muted); }
.footer-contact .ci { width: 18px; height: 18px; color: var(--cta-bg); flex-shrink: 0; margin-top: 2px; }
.footer-col h4 { font-size: 14px; color: #fff; margin-bottom: 16px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-col ul li { margin-bottom: 6px; }
.footer-col a { font-size: 15px; color: var(--dark-muted); transition: var(--transition); }
.footer-col a:hover { color: var(--cta-bg); }
.footer-col.products-col ul { column-count: 2; column-gap: 32px; }
.footer-col.products-col ul li { break-inside: avoid; page-break-inside: avoid; }
.footer-socials { display: flex; gap: 12px; margin-top: 24px; }
.footer-socials a { width: 36px; height: 36px; border: 1px solid var(--dark-border); border-radius: 6px; display: flex; align-items: center; justify-content: center; color: var(--dark-muted); background: rgba(255,255,255,0.03); transition: var(--transition); }
.footer-socials a:hover { color: var(--dark-bg); background: var(--cta-bg); border-color: var(--cta-bg); transform: translateY(-2px); }
.footer-socials svg { width: 18px; height: 18px; }
.footer-bottom { border-top: 1px solid var(--dark-border); margin-top: 64px; padding: 24px 0; display: flex; flex-direction: column; align-items: center; gap: 16px; font-size: 13px; color: var(--dark-muted); }
.footer-legal { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; list-style: none; padding: 0; margin: 0; }
.footer-legal a { color: var(--dark-muted); transition: var(--transition); }
.footer-legal a:hover { color: var(--cta-bg); }
@media (min-width: 768px) { .footer-bottom { flex-direction: row; justify-content: space-between; text-align: left; } }
/* ── REVEAL ── */
.reveal { opacity: 1; transform: translateY(0); }
.stagger-children > * { opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > * { opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(1) { transition-delay: 0.06s; }
.stagger-children.is-visible > *:nth-child(2) { transition-delay: 0.12s; }
.stagger-children.is-visible > *:nth-child(3) { transition-delay: 0.18s; }
.stagger-children.is-visible > *:nth-child(4) { transition-delay: 0.24s; }
/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
.container { padding: 0 24px; }
.footer-grid { grid-template-columns: 1fr 1fr; gap: 48px; }
.footer-col.products-col { grid-column: span 2; }
.resources-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
.case-grid { grid-template-columns: 1fr 1fr; }
.overview-box { padding: 36px; }
}
@media (max-width: 767px) {
.nav-menu, .nav-cta { display: none; }
.nav-toggle { display: flex; }
.page-hero h1 { font-size: 40px; }
.case-grid { grid-template-columns: 1fr; }
.resources-grid { grid-template-columns: 1fr; }
.resources-header { flex-direction: column; align-items: flex-start; gap: 12px; }
.overview-box { padding: 28px; }
.footer-grid { grid-template-columns: 1fr; gap: 40px; }
.footer-col.products-col { grid-column: span 1; }
.footer-col.products-col ul { column-count: 1; }
.footer-bottom { flex-direction: column; align-items: flex-start; }
}
(function () {
const nav = document.getElementById('mainNav');
const navToggle = document.getElementById('navToggle');
const mobileMenu = document.getElementById('mobileMenu');
const mobileClose = document.getElementById('mobileClose');
if (navToggle && mobileMenu && mobileClose) {
navToggle.addEventListener('click', () => mobileMenu.classList.add('is-open'));
mobileClose.addEventListener('click', () => mobileMenu.classList.remove('is-open'));
}
const revealObs = new IntersectionObserver((entries) => {
entries.forEach(entry => { if (entry.isIntersecting) { entry.target.classList.add('is-visible'); revealObs.unobserve(entry.target); } });
}, { threshold: 0.1 });
document.querySelectorAll('.reveal, .stagger-children').forEach(el => revealObs.observe(el));
window.addEventListener('scroll', () => { nav.classList.toggle('scrolled', window.scrollY > 20); }, { passive: true });
})();
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