:root {
  --primary: #14406e;
  --primary-dark: #0d2c4d;
  --primary-light: #1e5a96;
  --accent: #e87722;
  --accent-dark: #cf6515;
  --text: #333a40;
  --text-light: #666e76;
  --muted: #8a97a5;
  --bg: #f5f7fa;
  --card: #ffffff;
  --border: #e3e8ee;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(13, 44, 77, .08);
  --shadow-lg: 0 8px 28px rgba(13, 44, 77, .14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
}

img, svg { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
table { border-collapse: collapse; width: 100%; }
strong { color: #22282d; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }


.topbar {
  background: var(--primary-dark);
  color: #c8d4e0;
  font-size: 13px;
  padding: 7px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.topbar a { color: #fff; }
.topbar .topbar-contact { display: flex; gap: 20px; align-items: center; }
.topbar .tel-num { font-weight: 600; letter-spacing: .5px; }


.site-header {
  background: #fff;
  box-shadow: 0 1px 0 var(--border), 0 4px 16px rgba(13, 44, 77, .06);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { width: 44px; height: 44px; }
.brand-name { font-size: 20px; font-weight: 700; color: var(--primary); line-height: 1.2; letter-spacing: 1px; }
.brand-name small { display: block; font-size: 11px; font-weight: 400; color: var(--muted); letter-spacing: 2px; }

.nav-menu > ul { display: flex; align-items: center; }
.nav-menu > ul > li { position: relative; }
.nav-menu > ul > li > a {
  display: block;
  padding: 24px 16px;
  font-size: 16px;
  font-weight: 500;
  color: #333;
}
.nav-menu > ul > li > a:hover,
.nav-menu > ul > li.active > a { color: var(--accent); box-shadow: inset 0 -3px 0 var(--accent); }


.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #fff;
  min-width: 230px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border-top: 3px solid var(--accent);
  opacity: 0;
  visibility: hidden;
  transition: all .2s ease;
  padding: 8px 0;
  z-index: 99;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown a {
  display: block;
  padding: 9px 20px;
  font-size: 15px;
  color: #444;
  white-space: nowrap;
}
.dropdown a:hover { background: var(--bg); color: var(--accent); padding-left: 24px; }


.nav-toggle { display: none; }
.nav-toggle-label { display: none; cursor: pointer; padding: 8px; }
.nav-toggle-label span, .nav-toggle-label span::before, .nav-toggle-label span::after {
  display: block; width: 24px; height: 2px; background: var(--primary); position: relative; transition: .2s;
}
.nav-toggle-label span::before, .nav-toggle-label span::after { content: ""; position: absolute; }
.nav-toggle-label span::before { top: -7px; }
.nav-toggle-label span::after { top: 7px; }


.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-outline { border-color: var(--accent); color: var(--accent); background: transparent; }
.btn-outline:hover { background: var(--accent); color: #fff; }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: #e8eef5; color: var(--primary); }
.btn-ghost-light { border-color: rgba(255,255,255,.7); color: #fff; background: transparent; }
.btn-ghost-light:hover { background: rgba(255,255,255,.12); color: #fff; }


.hero {
  background:
    linear-gradient(115deg, rgba(13,44,77,.96) 0%, rgba(20,64,110,.92) 55%, rgba(30,90,150,.85) 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.035) 0 1px, transparent 1px 90px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.035) 0 1px, transparent 1px 90px);
  color: #fff;
  padding: 78px 0 64px;
  overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.hero-tag {
  display: inline-block;
  background: rgba(232,119,34,.16);
  border: 1px solid rgba(232,119,34,.55);
  color: #ffb27a;
  font-size: 14px;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.hero h1 { font-size: 38px; line-height: 1.35; margin-bottom: 8px; letter-spacing: 1px; }
.hero h1 em { font-style: normal; color: #ffb27a; }
.hero-sub { font-size: 17px; color: #c9d6e4; margin: 14px 0 30px; max-width: 560px; }
.hero-slogan {
  display: inline-block;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 5px;
  color: #ffffff;
  border-left: 4px solid var(--accent);
  background: linear-gradient(90deg, rgba(232,119,34,.22), rgba(232,119,34,0));
  padding: 6px 18px 6px 12px;
  margin: 10px 0 4px;
}
.hero-slogan em { font-style: normal; color: #ffb27a; }
.footer-slogan { color: #ffb27a; font-weight: 700; letter-spacing: 3px; font-size: 15px; margin: -6px 0 12px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-visual svg { width: 100%; max-width: 460px; margin: 0 auto; filter: drop-shadow(0 18px 30px rgba(0,0,0,.35)); }
.hero-visual img {
  display: block;
  width: 100%;
  max-width: 545px;
  max-height: 520px;
  object-fit: contain;
  margin: 0 auto;
  filter: drop-shadow(0 18px 32px rgba(0,0,0,.45));
}
.hero-keywords { margin-top: 26px; font-size: 13px; color: #8fa5bd; }
.hero-keywords span { margin-right: 18px; white-space: nowrap; }


.hero-stats {
  background: var(--primary-dark);
  color: #fff;
  padding: 26px 0;
}
.hero-stats .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-num { font-size: 32px; font-weight: 700; color: #ffb27a; line-height: 1.2; }
.stat-num small { font-size: 15px; font-weight: 500; margin-left: 2px; }
.stat-label { font-size: 14px; color: #b7c6d6; margin-top: 4px; }


.section { padding: 68px 0; }
.section-alt { background: #fff; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 44px; }
.section-tag {
  display: inline-block;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 8px;
}
.section-head h2 { font-size: 30px; color: var(--primary-dark); line-height: 1.4; }
.section-desc { color: var(--text-light); margin-top: 12px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }


.product-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform .25s, box-shadow .25s;
  display: flex;
  flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-thumb {
  background: linear-gradient(160deg, #eef2f7 0%, #dde5ee 100%);
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 210px;
}
.product-thumb svg { max-height: 170px; width: auto; }
.product-thumb img { max-height: 178px; width: auto; max-width: 100%; margin: 0 auto; }
.product-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: 18px; margin-bottom: 8px; }
.product-body h3 a { color: var(--primary-dark); }
.product-body h3 a:hover { color: var(--accent); }
.product-body p { font-size: 14px; color: var(--text-light); flex: 1; }
.product-tags { margin: 14px 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 12px;
  color: var(--primary);
  background: #eaf1f8;
  border: 1px solid #d3e2f0;
  padding: 2px 10px;
  border-radius: 12px;
  white-space: nowrap;
}
.card-more { font-size: 14px; font-weight: 600; color: var(--accent); }
.card-more::after { content: " →"; }


.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow);
}
.feature-icon {
  width: 56px; height: 56px;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.feature-icon svg { width: 28px; height: 28px; stroke: #fff; fill: none; stroke-width: 1.8; }
.feature-card h3 { font-size: 17px; margin-bottom: 8px; color: var(--primary-dark); }
.feature-card p { font-size: 14px; color: var(--text-light); }


.check-list li { padding-left: 28px; position: relative; margin-bottom: 10px; color: var(--text-light); }
.check-list li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  width: 19px; height: 19px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-size: 12px;
  display: flex; align-items: center; justify-content: center;
  line-height: 19px; text-align: center;
}
.check-list li strong { color: var(--text); }


.table-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); background: #fff; }
.spec-table { min-width: 640px; font-size: 14.5px; }
.spec-table th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  padding: 13px 16px;
  text-align: left;
  white-space: nowrap;
}
.spec-table td { padding: 12px 16px; border-top: 1px solid var(--border); color: var(--text-light); }
.spec-table tr:nth-child(even) td { background: #f8fafc; }
.spec-table td:first-child { color: var(--text); font-weight: 500; white-space: nowrap; }
.table-note { font-size: 13px; color: var(--muted); margin-top: 10px; }


.steps { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; counter-reset: step; }
.step { text-align: center; position: relative; }
.step-num {
  width: 52px; height: 52px;
  margin: 0 auto 12px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 20px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow);
  position: relative;
  z-index: 2;
}
.step::after {
  content: "";
  position: absolute;
  top: 26px; left: calc(50% + 30px);
  width: calc(100% - 60px);
  height: 2px;
  background: #d3dce6;
}
.step:last-child::after { display: none; }
.step h4 { font-size: 15px; color: var(--primary-dark); margin-bottom: 4px; }
.step p { font-size: 12.5px; color: var(--muted); line-height: 1.5; }


.faq-list { max-width: 880px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-item summary {
  cursor: pointer;
  padding: 17px 52px 17px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-dark);
  position: relative;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px; top: 50%;
  transform: translateY(-50%);
  width: 26px; height: 26px;
  background: #eaf1f8;
  color: var(--primary);
  border-radius: 50%;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: .2s;
}
.faq-item[open] summary::after { content: "−"; background: var(--accent); color: #fff; }
.faq-item .faq-a { padding: 0 22px 20px; color: var(--text-light); font-size: 15px; }
.faq-item .faq-a p { margin-bottom: 8px; }


.prose { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 40px 48px; }
.prose h2 {
  font-size: 24px; color: var(--primary-dark);
  margin: 34px 0 14px; padding-left: 14px;
  border-left: 4px solid var(--accent);
  line-height: 1.4;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 19px; color: var(--primary); margin: 26px 0 10px; }
.prose p { margin-bottom: 14px; color: #4a525a; }
.prose ul { margin: 0 0 16px 0; }
.prose ul li { padding-left: 22px; position: relative; margin-bottom: 8px; color: #4a525a; list-style: none; }
.prose ul li::before { content: ""; position: absolute; left: 4px; top: 12px; width: 7px; height: 7px; border-radius: 2px; background: var(--accent); }
.prose ol { margin: 0 0 16px 24px; }
.prose ol li { margin-bottom: 8px; color: #4a525a; }
.prose blockquote {
  background: #f2f7fc;
  border-left: 4px solid var(--primary-light);
  padding: 14px 20px;
  margin: 18px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--primary-dark);
  font-size: 15px;
}
.prose .table-wrap { margin: 16px 0 22px; }
.prose img { border-radius: var(--radius); margin: 16px auto; border: 1px solid var(--border); }
.article-meta { display: flex; gap: 22px; font-size: 14px; color: var(--muted); margin-bottom: 22px; padding-bottom: 18px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }


.news-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  transition: transform .25s, box-shadow .25s;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.news-meta { font-size: 13px; color: var(--muted); margin-bottom: 10px; display: flex; gap: 14px; }
.news-meta .cat { color: var(--accent); font-weight: 600; }
.news-card h3 { font-size: 17.5px; line-height: 1.5; margin-bottom: 10px; }
.news-card h3 a { color: var(--primary-dark); }
.news-card h3 a:hover { color: var(--accent); }
.news-card p { font-size: 14px; color: var(--text-light); flex: 1; }
.news-card .card-more { margin-top: 14px; display: inline-block; }


.page-hero {
  background:
    linear-gradient(115deg, rgba(13,44,77,.95) 0%, rgba(20,64,110,.9) 60%, rgba(30,90,150,.82) 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.035) 0 1px, transparent 1px 90px);
  color: #fff;
  padding: 44px 0 40px;
}
.page-hero h1 { font-size: 30px; margin-bottom: 8px; letter-spacing: 1px; }
.page-hero .page-desc { color: #c9d6e4; max-width: 780px; font-size: 15.5px; }

.breadcrumb { background: #edf1f6; border-bottom: 1px solid var(--border); font-size: 13.5px; color: var(--muted); padding: 10px 0; }
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 8px; color: #c0c9d2; }


.split { display: grid; grid-template-columns: 1fr 1.15fr; gap: 40px; align-items: center; }
.split-reverse { grid-template-columns: 1.15fr 1fr; }
.split-visual {
  background: linear-gradient(160deg, #eef2f7 0%, #dde5ee 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}
.split-visual svg { margin: 0 auto; }
.split-visual img { display: block; margin: 0 auto; max-width: 100%; max-height: 430px; width: auto; }
.product-thumb.photo { padding: 0; }
.product-thumb.photo img { width: 100%; height: 100%; min-height: 210px; max-height: 230px; object-fit: cover; }


.cta-banner {
  background: linear-gradient(115deg, var(--primary-dark), var(--primary-light));
  border-radius: var(--radius);
  color: #fff;
  padding: 44px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
}
.cta-banner h2 { font-size: 24px; margin-bottom: 6px; }
.cta-banner p { color: #c9d6e4; font-size: 15px; }
.cta-banner .tel-big { font-size: 30px; font-weight: 700; color: #ffb27a; letter-spacing: 1px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }


.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 30px; align-items: start; }
.contact-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 28px;
}
.contact-item { display: flex; gap: 14px; margin-bottom: 20px; align-items: flex-start; }
.contact-item:last-child { margin-bottom: 0; }
.contact-item .ci-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 10px;
  background: #eaf1f8;
  display: flex; align-items: center; justify-content: center;
}
.contact-item .ci-icon svg { width: 20px; height: 20px; stroke: var(--primary); fill: none; stroke-width: 1.8; }
.contact-item h4 { font-size: 15px; color: var(--primary-dark); margin-bottom: 2px; }
.contact-item p { font-size: 15px; color: var(--text-light); }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 14px; font-weight: 600; color: var(--primary-dark); }
.form-field label em { color: var(--accent); font-style: normal; }
.form-field input, .form-field select, .form-field textarea {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 11px 14px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: #fbfcfe;
  outline: none;
  transition: border .2s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--primary-light); background: #fff; }
.form-field textarea { resize: vertical; min-height: 110px; }
.form-tip { grid-column: 1 / -1; font-size: 13px; color: var(--muted); }


.site-footer { background: var(--primary-dark); color: #a9b9c9; margin-top: 70px; font-size: 14.5px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; padding: 54px 0 40px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; letter-spacing: 1px; }
.footer-col ul li { margin-bottom: 9px; }
.footer-col a { color: #a9b9c9; font-size: 14px; }
.footer-col a:hover { color: #ffb27a; }
.footer-about p { font-size: 13.5px; line-height: 1.8; margin-bottom: 14px; }
.footer-contact li { display: flex; gap: 8px; }
.footer-contact li::before { content: "·"; color: var(--accent); font-weight: 700; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 18px 0; font-size: 13px; }
.footer-bottom .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-bottom a { color: #a9b9c9; }
.footer-bottom a:hover { color: #ffb27a; }


.back-top {
  position: fixed;
  right: 24px; bottom: 32px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  font-size: 20px;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: .25s;
  z-index: 90;
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--accent-dark); }


.center { text-align: center; }
.mt-30 { margin-top: 30px; }
.mt-50 { margin-top: 50px; }
.img-note { font-size: 12.5px; color: var(--muted); text-align: center; margin-top: 8px; }
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.badge-row .tag { font-size: 13px; padding: 4px 14px; }
.related-title { font-size: 22px; color: var(--primary-dark); margin-bottom: 22px; padding-left: 12px; border-left: 4px solid var(--accent); }


@media (max-width: 1024px) {
  .hero h1 { font-size: 34px; }
  .steps { grid-template-columns: repeat(4, 1fr); row-gap: 28px; }
  .step:nth-child(4)::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  
  .nav-toggle-label { display: block; }
  .nav-menu {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    box-shadow: 0 14px 24px rgba(13,44,77,.14);
    max-height: 0;
    overflow: auto;
    transition: max-height .3s;
  }
  .nav-toggle:checked ~ .nav-menu { max-height: 620px; border-top: 1px solid var(--border); }
  .nav-menu > ul { flex-direction: column; align-items: stretch; padding: 8px 0; }
  .nav-menu > ul > li > a { padding: 12px 24px; border-bottom: 1px solid #f0f3f7; }
  .nav-menu > ul > li > a:hover, .nav-menu > ul > li.active > a { box-shadow: none; background: #f7fafc; }
  .dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border-top: none;
    background: #f7fafc;
    display: none;
    min-width: 0;
    padding: 4px 0;
  }
  .has-dropdown:hover .dropdown, .has-dropdown:focus-within .dropdown { display: block; transform: none; }
  .has-dropdown > a::after { content: " ▾"; color: var(--muted); }

  .hero { padding: 48px 0 44px; }
  .hero-inner { grid-template-columns: 1fr; gap: 30px; }
  .hero h1 { font-size: 29px; }
  .hero-visual { display: none; }
  .hero-stats .container { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .split, .split-reverse { grid-template-columns: 1fr; gap: 24px; }
  .contact-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none; }
  .prose { padding: 26px 20px; }
  .cta-banner { padding: 30px 24px; }
}

@media (max-width: 560px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 25px; }
  .hero-slogan { font-size: 17px; letter-spacing: 2px; padding: 5px 10px; }
  .section-head h2 { font-size: 24px; }
  .page-hero h1 { font-size: 24px; }
  .contact-form { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .topbar .topbar-welcome { display: none; }
  .hero-stats .container { gap: 14px; }
  .stat-num { font-size: 24px; }
}