/*
Theme Name: Sentely Theme
Theme URI: https://ts-sentely.com
Author: Sentely Dev
Author URI: https://ts-sentely.com
Description: 深圳市赛德力检测设备有限公司官方静态页面
Version: 1.0.0
*/

/* =========================================================
   DESIGN TOKENS — Brand Colors (emin.vn inspired)
   ========================================================= */
:root {
  --clr-primary:   #e8292a;
  --clr-primary-d: #c0141a;
  --clr-dark:      #1a1a2e;
  --clr-mid:       #2d3561;
  --clr-accent:    #f5a623;
  --clr-bg:        #f5f6fa;
  --clr-white:     #ffffff;
  --clr-text:      #333333;
  --clr-muted:     #777777;
  --clr-border:    #e0e0e0;
  --clr-success:   #27ae60;
  --clr-warn:      #e67e22;
  --font-main: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', sans-serif;
  --radius: 4px;
  --shadow: 0 2px 8px rgba(0,0,0,.08);
  --shadow-hover: 0 6px 20px rgba(0,0,0,.14);
  --transition: .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; }
body { font-family: var(--font-main); color: var(--clr-text); background: var(--clr-white); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--clr-primary); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button, input, select, textarea { font-family: inherit; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 20px; }

/* ── Sub Bar ── */
.sub-bar { background: var(--clr-dark); color: #bbb; font-size: .82rem; padding: 8px 0; }
.sub-bar .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.sub-bar__text span { color: var(--clr-white); font-weight: 600; }
.sub-bar__form { display: flex; gap: 6px; }
.sub-bar__form input { padding: 5px 12px; border: 1px solid #444; background: #2a2a3e; color: var(--clr-white); border-radius: var(--radius); font-size: .82rem; width: 220px; }
.sub-bar__form button { padding: 5px 16px; background: var(--clr-primary); color: #fff; border: none; border-radius: var(--radius); cursor: pointer; font-size: .82rem; transition: background var(--transition); }
.sub-bar__form button:hover { background: var(--clr-primary-d); }
.sub-bar__policy { font-size: .75rem; color: #666; }
.sub-bar__policy a { color: #888; text-decoration: underline; }

/* ── Header ── */
.site-header { background: var(--clr-white); border-bottom: 1px solid var(--clr-border); position: sticky; top: 0; z-index: 1000; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.header-main { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; gap: 20px; }
.site-logo span { font-size: 1.3rem; font-weight: 700; color: var(--clr-primary); letter-spacing: -0.5px; }
.header-search { flex: 1; max-width: 440px; }
.header-search form { display: flex; }
.header-search input { flex: 1; padding: 8px 14px; border: 2px solid var(--clr-border); border-right: none; border-radius: var(--radius) 0 0 var(--radius); font-size: .9rem; outline: none; transition: border-color var(--transition); }
.header-search input:focus { border-color: var(--clr-primary); }
.header-search button { padding: 8px 16px; background: var(--clr-primary); color: #fff; border: none; border-radius: 0 var(--radius) var(--radius) 0; cursor: pointer; font-size: .95rem; }
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-actions a { display: flex; flex-direction: column; align-items: center; font-size: .75rem; color: var(--clr-muted); gap: 2px; transition: color var(--transition); }
.header-actions a:hover { color: var(--clr-primary); }
.header-actions a .icon { font-size: 1.3rem; }

/* ── Navigation ── */
.site-nav { background: var(--clr-mid); }
.site-nav .container { display: flex; align-items: center; }
.site-nav__menu { display: flex; align-items: center; }
.site-nav__menu > li { position: relative; }
.site-nav__menu > li > a { display: block; padding: 12px 16px; color: #ddd; font-size: .88rem; transition: background var(--transition), color var(--transition); white-space: nowrap; }
.site-nav__menu > li > a:hover, .site-nav__menu > li.current > a { background: var(--clr-primary); color: #fff; }
.site-nav__menu li .sub-menu { display: none; position: absolute; top: 100%; left: 0; background: var(--clr-white); min-width: 200px; box-shadow: var(--shadow-hover); border-top: 2px solid var(--clr-primary); z-index: 999; }
.site-nav__menu li:hover > .sub-menu { display: block; }
.site-nav__menu li .sub-menu li a { display: block; padding: 9px 16px; font-size: .85rem; color: var(--clr-text); border-bottom: 1px solid var(--clr-border); transition: background var(--transition); }
.site-nav__menu li .sub-menu li a:hover { background: #fef2f2; color: var(--clr-primary); }

/* ── Brand Strip ── */
.brand-strip { background: #f0f0f5; border-bottom: 1px solid var(--clr-border); padding: 6px 0; overflow-x: auto; }
.brand-strip .container { display: flex; align-items: center; gap: 6px; flex-wrap: nowrap; }
.brand-strip__label { font-size: .78rem; color: var(--clr-muted); white-space: nowrap; margin-right: 4px; }
.brand-strip a { font-size: .78rem; padding: 3px 10px; border: 1px solid var(--clr-border); border-radius: 20px; background: #fff; color: var(--clr-text); white-space: nowrap; transition: all var(--transition); }
.brand-strip a:hover { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); }

/* ── Hero Banner ── */
.hero-banner { background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-mid) 100%); padding: 60px 0; color: #fff; position: relative; overflow: hidden; }
.hero-banner::before { content: ''; position: absolute; right: -60px; top: -60px; width: 400px; height: 400px; background: radial-gradient(circle, rgba(232,41,42,.25) 0%, transparent 70%); border-radius: 50%; }
.hero-banner .container { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.hero-banner__content h1 { font-size: 2rem; font-weight: 700; line-height: 1.3; margin-bottom: 16px; }
.hero-banner__content h1 span { color: var(--clr-accent); }
.hero-banner__content p { color: #bbb; font-size: .95rem; margin-bottom: 24px; line-height: 1.7; }
.hero-banner__btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 24px; border-radius: var(--radius); font-size: .9rem; font-weight: 600; cursor: pointer; border: 2px solid transparent; transition: all var(--transition); }
.btn-primary { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); }
.btn-primary:hover { background: var(--clr-primary-d); color: #fff; border-color: var(--clr-primary-d); }
.btn-outline { background: transparent; color: #fff; border-color: #fff; }
.btn-outline:hover { background: #fff; color: var(--clr-dark); }
.hero-banner__image { text-align: center; }
.hero-banner__stats { display: flex; gap: 30px; margin-top: 30px; }
.hero-stat { text-align: center; }
.hero-stat strong { display: block; font-size: 1.6rem; color: var(--clr-accent); font-weight: 700; }
.hero-stat span { font-size: .8rem; color: #aaa; }

/* ── Section Commons ── */
.section { padding: 50px 0; }
.section--gray { background: var(--clr-bg); }
.section-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 28px; border-bottom: 2px solid var(--clr-border); padding-bottom: 12px; }
.section-header h2 { font-size: 1.25rem; font-weight: 700; color: var(--clr-dark); position: relative; }
.section-header h2::before { content: ''; display: inline-block; width: 4px; height: 18px; background: var(--clr-primary); border-radius: 2px; margin-right: 10px; vertical-align: middle; }
.section-header a { font-size: .85rem; color: var(--clr-primary); }

/* ── Category Cards ── */
.category-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.category-card { background: #fff; border: 1px solid var(--clr-border); border-radius: var(--radius); padding: 20px 12px; text-align: center; transition: all var(--transition); }
.category-card:hover { border-color: var(--clr-primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.category-card .icon { font-size: 2rem; margin-bottom: 8px; }
.category-card span { font-size: .82rem; font-weight: 600; color: var(--clr-dark); }
.category-card:hover span { color: var(--clr-primary); }

/* ── Product Cards ── */
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.product-card { background: #fff; border: 1px solid var(--clr-border); border-radius: var(--radius); overflow: hidden; transition: box-shadow var(--transition), transform var(--transition); position: relative; }
.product-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.product-card__badge { position: absolute; top: 8px; left: 8px; background: var(--clr-primary); color: #fff; font-size: .7rem; font-weight: 700; padding: 2px 8px; border-radius: 2px; text-transform: uppercase; letter-spacing: .5px; }
.product-card__badge--new { background: var(--clr-success); }
.product-card__img { display: block; width: 100%; height: 180px; object-fit: contain; padding: 12px; background: #fafafa; border-bottom: 1px solid var(--clr-border); transition: transform var(--transition); }
.product-card:hover .product-card__img { transform: scale(1.03); }
.product-card__body { padding: 12px; }
.product-card__brand { font-size: .72rem; color: var(--clr-muted); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 4px; }
.product-card__name { font-size: .88rem; font-weight: 600; color: var(--clr-dark); line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.5em; }
.product-card__name a:hover { color: var(--clr-primary); }
.product-card__price { font-size: 1.05rem; font-weight: 700; color: var(--clr-primary); margin-bottom: 6px; }
.product-card__stock { font-size: .78rem; margin-bottom: 10px; }
.product-card__stock.in-stock { color: var(--clr-success); }
.product-card__stock.low-stock { color: var(--clr-warn); }
.product-card__add { display: block; width: 100%; padding: 8px; background: var(--clr-primary); color: #fff; border: none; border-radius: var(--radius); font-size: .85rem; font-weight: 600; cursor: pointer; text-align: center; transition: background var(--transition); }
.product-card__add:hover { background: var(--clr-primary-d); }

/* ── Quick Support ── */
.quick-support { background: linear-gradient(90deg, var(--clr-primary) 0%, var(--clr-primary-d) 100%); padding: 28px 0; color: #fff; }
.quick-support .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.quick-support__text h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.quick-support__text p { font-size: .88rem; opacity: .85; }
.quick-support__contacts { display: flex; gap: 20px; flex-wrap: wrap; }
.support-contact { display: flex; align-items: center; gap: 10px; background: rgba(255,255,255,.12); padding: 10px 16px; border-radius: var(--radius); transition: background var(--transition); }
.support-contact:hover { background: rgba(255,255,255,.22); color: #fff; }
.support-contact .icon { font-size: 1.4rem; }
.support-contact__info small { display: block; font-size: .72rem; opacity: .8; }
.support-contact__info strong { font-size: .95rem; }

/* ── News Cards ── */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.news-card { background: #fff; border: 1px solid var(--clr-border); border-radius: var(--radius); overflow: hidden; transition: box-shadow var(--transition); }
.news-card:hover { box-shadow: var(--shadow-hover); }
.news-card__img { width: 100%; height: 160px; object-fit: cover; background: #ddd; }
.news-card__body { padding: 14px; }
.news-card__cat { display: inline-block; font-size: .72rem; font-weight: 700; color: var(--clr-primary); text-transform: uppercase; margin-bottom: 6px; }
.news-card__title { font-size: .92rem; font-weight: 600; line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card__title a:hover { color: var(--clr-primary); }
.news-card__excerpt { font-size: .82rem; color: var(--clr-muted); line-height: 1.5; margin-bottom: 10px; }
.news-card__meta { font-size: .75rem; color: #aaa; }

/* ── Brand Logos ── */
.brands-logos { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; align-items: center; }
.brand-logo-item { border: 1px solid var(--clr-border); border-radius: var(--radius); padding: 14px 8px; text-align: center; background: #fff; transition: all var(--transition); font-size: .8rem; font-weight: 700; color: var(--clr-muted); }
.brand-logo-item:hover { border-color: var(--clr-primary); color: var(--clr-primary); box-shadow: var(--shadow); }

/* ── About Section ── */
.about-section .container { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-section h2 { font-size: 1.5rem; font-weight: 700; color: var(--clr-dark); margin-bottom: 16px; }
.about-section h2 span { color: var(--clr-primary); }
.about-section p { color: var(--clr-muted); line-height: 1.8; margin-bottom: 16px; font-size: .92rem; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 20px; }
.about-feature { display: flex; align-items: flex-start; gap: 10px; }
.about-feature .icon { font-size: 1.4rem; color: var(--clr-primary); flex-shrink: 0; margin-top: 2px; }
.about-feature h4 { font-size: .88rem; font-weight: 700; margin-bottom: 2px; }
.about-feature p { font-size: .8rem; color: var(--clr-muted); margin: 0; }

/* ── Cases Grid ── */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card { background: #fff; border: 1px solid var(--clr-border); border-radius: var(--radius); overflow: hidden; transition: box-shadow var(--transition); }
.case-card:hover { box-shadow: var(--shadow-hover); }
.case-card__img { width: 100%; height: 180px; object-fit: cover; background: #ddd; }
.case-card__body { padding: 14px; }
.case-card__title { font-size: .92rem; font-weight: 700; margin-bottom: 8px; color: var(--clr-dark); }
.case-card__title a:hover { color: var(--clr-primary); }
.case-card__desc { font-size: .82rem; color: var(--clr-muted); line-height: 1.5; }

/* ── Footer ── */
.site-footer { background: var(--clr-dark); color: #bbb; padding: 50px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid #2a2a3e; }
.footer-col h3 { color: #fff; font-size: .95rem; font-weight: 700; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 2px solid var(--clr-primary); display: inline-block; }
.footer-col p { font-size: .85rem; line-height: 1.8; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: .85rem; color: #bbb; transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--clr-primary); padding-left: 4px; }
.footer-contact-item { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; font-size: .85rem; }
.footer-contact-item .icon { color: var(--clr-primary); font-size: 1rem; margin-top: 2px; }
.footer-bottom { padding: 16px 0; text-align: center; font-size: .8rem; color: #555; }
.footer-bottom a { color: #666; }
.footer-bottom a:hover { color: var(--clr-primary); }

/* ── Nav Toggle ── */
.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.4rem; cursor: pointer; padding: 8px; }

/* ── Contact Page ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 40px; }
.contact-info-block { background: var(--clr-dark); color: #fff; padding: 30px; border-radius: var(--radius); }
.contact-info-block h3 { font-size: 1.1rem; margin-bottom: 20px; color: #fff; }
.contact-row { display: flex; gap: 12px; margin-bottom: 18px; align-items: flex-start; }
.contact-row .icon { color: var(--clr-primary); font-size: 1.2rem; flex-shrink: 0; margin-top: 2px; }
.contact-row p { font-size: .88rem; color: #bbb; line-height: 1.6; }
.contact-row strong { color: #fff; }
.contact-form { background: #fff; padding: 30px; border: 1px solid var(--clr-border); border-radius: var(--radius); }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 6px; color: var(--clr-dark); }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 9px 12px; border: 1px solid var(--clr-border); border-radius: var(--radius); font-size: .9rem; outline: none; transition: border-color var(--transition); }
.form-group input:focus, .form-group textarea:focus { border-color: var(--clr-primary); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit { display: inline-block; padding: 10px 32px; background: var(--clr-primary); color: #fff; border: none; border-radius: var(--radius); font-size: .9rem; font-weight: 600; cursor: pointer; transition: background var(--transition); }
.form-submit:hover { background: var(--clr-primary-d); }

/* ── Breadcrumb ── */
.breadcrumb { padding: 10px 0; font-size: .82rem; color: var(--clr-muted); }
.breadcrumb a { color: var(--clr-muted); }
.breadcrumb a:hover { color: var(--clr-primary); }
.breadcrumb span { margin: 0 6px; }

/* ── Page Hero ── */
.page-hero { background: linear-gradient(135deg, var(--clr-dark) 0%, var(--clr-mid) 100%); padding: 40px 0; color: #fff; text-align: center; }
.page-hero h1 { font-size: 1.8rem; font-weight: 700; margin-bottom: 8px; }
.page-hero p { font-size: .92rem; color: #bbb; }

/* ── Timeline ── */
.timeline { position: relative; max-width: 700px; margin: 0 auto; }
.timeline::before { content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: var(--clr-border); transform: translateX(-50%); }
.timeline-item { display: flex; margin-bottom: 30px; position: relative; }
.timeline-item:nth-child(odd) { flex-direction: row-reverse; }
.timeline-year { width: 50%; padding-right: 30px; text-align: right; font-size: 1.1rem; font-weight: 700; color: var(--clr-primary); padding-top: 4px; }
.timeline-item:nth-child(odd) .timeline-year { padding-right: 0; padding-left: 30px; text-align: left; }
.timeline-dot { position: absolute; left: 50%; top: 4px; width: 12px; height: 12px; background: var(--clr-primary); border-radius: 50%; transform: translateX(-50%); border: 2px solid #fff; }
.timeline-content { width: 50%; padding-left: 30px; }
.timeline-item:nth-child(odd) .timeline-content { padding-left: 0; padding-right: 30px; text-align: right; }
.timeline-content h3 { font-size: .92rem; font-weight: 700; margin-bottom: 4px; color: var(--clr-dark); }
.timeline-content p { font-size: .82rem; color: var(--clr-muted); line-height: 1.6; }

/* ── Cert Grid ── */
.certifications-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cert-item { background: #fff; border: 1px solid var(--clr-border); border-radius: var(--radius); padding: 20px; text-align: center; transition: all var(--transition); }
.cert-item:hover { border-color: var(--clr-primary); box-shadow: var(--shadow); }
.cert-item__icon { font-size: 2rem; margin-bottom: 10px; }
.cert-item h3 { font-size: .9rem; font-weight: 700; margin-bottom: 6px; color: var(--clr-dark); }
.cert-item p { font-size: .8rem; color: var(--clr-muted); }

/* ── Partners Logos ── */
.partners-logos { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.partner-logo { border: 1px solid var(--clr-border); border-radius: var(--radius); padding: 14px 8px; text-align: center; font-size: .75rem; font-weight: 700; color: var(--clr-muted); background: #fff; transition: all var(--transition); }
.partner-logo:hover { border-color: var(--clr-primary); color: var(--clr-primary); }

/* ── Service Steps ── */
.service-steps { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.service-step { flex: 1; min-width: 160px; text-align: center; padding: 20px; background: #fff; border: 1px solid var(--clr-border); border-radius: var(--radius); position: relative; }
.service-step::after { content: '→'; position: absolute; right: -18px; top: 50%; transform: translateY(-50%); color: var(--clr-primary); font-size: 1.2rem; font-weight: 700; }
.service-step:last-child::after { display: none; }
.service-step__num { display: inline-block; width: 32px; height: 32px; background: var(--clr-primary); color: #fff; border-radius: 50%; line-height: 32px; font-size: .85rem; font-weight: 700; margin-bottom: 10px; }
.service-step h4 { font-size: .88rem; font-weight: 700; margin-bottom: 6px; color: var(--clr-dark); }
.service-step p { font-size: .78rem; color: var(--clr-muted); }

/* ── Client Grid ── */
.client-grid { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.client-item { background: #fff; border: 1px solid var(--clr-border); border-radius: var(--radius); padding: 12px 20px; font-size: .85rem; font-weight: 600; color: var(--clr-dark); transition: all var(--transition); }
.client-item:hover { border-color: var(--clr-primary); color: var(--clr-primary); }

/* ── Application Fields ── */
.fields-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.field-card { background: #fff; border: 1px solid var(--clr-border); border-radius: var(--radius); padding: 16px; text-align: center; transition: all var(--transition); }
.field-card:hover { border-color: var(--clr-primary); box-shadow: var(--shadow); }
.field-card .icon { font-size: 1.8rem; margin-bottom: 8px; }
.field-card h4 { font-size: .85rem; font-weight: 700; color: var(--clr-dark); margin-bottom: 4px; }
.field-card p { font-size: .75rem; color: var(--clr-muted); }

/* ── Brand Grid ── */
.brands-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.brand-card { background: #fff; border: 1px solid var(--clr-border); border-radius: var(--radius); padding: 20px; text-align: center; transition: all var(--transition); }
.brand-card:hover { border-color: var(--clr-primary); box-shadow: var(--shadow); }
.brand-card__flag { font-size: 1.4rem; margin-bottom: 8px; }
.brand-card__name { font-size: .92rem; font-weight: 700; color: var(--clr-dark); margin-bottom: 4px; }
.brand-card__type { font-size: .75rem; color: var(--clr-muted); }

/* ── Pagination ── */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 30px; }
.pagination a, .pagination span { padding: 7px 13px; border: 1px solid var(--clr-border); border-radius: var(--radius); font-size: .85rem; color: var(--clr-text); transition: all var(--transition); }
.pagination a:hover, .pagination .current { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .brands-logos { grid-template-columns: repeat(5, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .hero-banner .container { grid-template-columns: 1fr; }
  .hero-banner__image { display: none; }
  .fields-grid { grid-template-columns: repeat(3, 1fr); }
  .brands-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 768px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .brands-logos { grid-template-columns: repeat(4, 1fr); }
  .about-section .container { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .site-nav { display: none; }
  .site-nav.open { display: block; }
  .site-nav__menu { flex-direction: column; }
  .nav-toggle { display: block; }
  .header-search { display: none; }
  .sub-bar .container { flex-direction: column; align-items: flex-start; }
  .sub-bar__form input { width: 180px; }
  .hero-banner { padding: 36px 0; }
  .hero-banner__content h1 { font-size: 1.4rem; }
  .certifications-grid { grid-template-columns: repeat(2, 1fr); }
  .fields-grid { grid-template-columns: repeat(2, 1fr); }
  .brands-grid { grid-template-columns: repeat(2, 1fr); }
  .partners-logos { grid-template-columns: repeat(3, 1fr); }
  .timeline::before { left: 0; }
  .timeline-item { flex-direction: column !important; }
  .timeline-year { width: 100%; text-align: left; padding: 0 0 0 24px; }
  .timeline-dot { left: 0; top: 4px; transform: none; }
  .timeline-content { width: 100%; padding: 0 0 0 24px; text-align: left; }
  .service-step { min-width: 140px; }
  .service-step::after { display: none; }
}
@media (max-width: 480px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .brands-logos { grid-template-columns: repeat(3, 1fr); }
  .quick-support .container { flex-direction: column; }
  .certifications-grid { grid-template-columns: 1fr 1fr; }
  .fields-grid { grid-template-columns: 1fr 1fr; }
  .brands-grid { grid-template-columns: 1fr 1fr; }
}