:root {
  --navy: #0a2540;
  --blue: #0c66e4;
  --blue-dark: #084da8;
  --cyan: #27a8d8;
  --ink: #172b3a;
  --muted: #627487;
  --line: #dbe5ee;
  --soft: #f4f8fc;
  --white: #ffffff;
  --success: #0a8f62;
  --warning: #a36a00;
  --radius: 14px;
  --shadow: 0 16px 40px rgba(10, 37, 64, .09);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
body.menu-open { overflow: hidden; }
body.lightbox-open { overflow: hidden; }
img { display: block; width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { padding: 88px 0; }
.section-sm { padding: 58px 0; }
.soft-section { background: var(--soft); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; }
h1, h2, h3, h4 { margin: 0; color: var(--navy); line-height: 1.18; letter-spacing: -.025em; }
h1 { font-size: clamp(2.45rem, 6vw, 4.7rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.28rem; }
p { margin: 0; }
.lead { color: var(--muted); font-size: 1.08rem; line-height: 1.8; }
.zh-line { display: block; margin-top: .28em; color: #647d92; font-size: .64em; font-weight: 550; letter-spacing: 0; line-height: 1.45; }
p > .zh-line, li > .zh-line { font-size: .88em; }
.eyebrow > .zh-line, .card-label > .zh-line, .status-pill > .zh-line { display: inline; margin: 0 0 0 7px; color: inherit; font-size: .88em; }
.site-nav a > .zh-line, .btn > .zh-line, .link-arrow > .zh-line, .filter-btn > .zh-line { display: inline; margin: 0 0 0 4px; color: inherit; font-size: .82em; font-weight: inherit; }
.field label > .zh-line, .contact-card small > .zh-line, .footer-title > .zh-line { display: inline; margin: 0 0 0 5px; color: inherit; font-size: .9em; }
.feature-list .zh-line { margin-top: 3px; color: var(--muted); font-size: .88em; }
.spec-table th .zh-line { margin-top: 2px; font-size: .82em; }
.quote-copy .zh-line, .cta-banner .zh-line { color: #c5ddf0; }
.section-head { max-width: 720px; margin-bottom: 42px; }
.section-head p { margin-top: 17px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head.center .eyebrow::before { display: none; }
.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 12px 21px;
  background: var(--blue);
  color: var(--white);
  font-weight: 700;
  cursor: pointer;
}
.btn:hover, .btn:focus-visible { background: var(--blue-dark); }
.btn-outline { border-color: var(--line); background: var(--white); color: var(--navy); }
.btn-outline:hover, .btn-outline:focus-visible { border-color: var(--blue); background: #eef6ff; color: var(--blue); }
.btn-light { background: var(--white); color: var(--blue-dark); }
.btn-light:hover, .btn-light:focus-visible { background: #eaf3ff; }
.btn-small { min-height: 42px; padding: 9px 16px; font-size: 14px; }
.arrow { font-size: 1.15em; line-height: 1; }
.link-arrow { display: inline-flex; align-items: center; gap: 7px; color: var(--blue); font-weight: 700; }
.link-arrow:hover { color: var(--blue-dark); }

.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  border-bottom: 1px solid rgba(219, 229, 238, .8);
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(12px);
}
.nav-wrap { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--navy); }
.brand-mark {
  position: relative;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: white;
  font-size: 17px;
  font-weight: 850;
}
.brand-text { display: grid; line-height: 1.1; }
.brand-text strong { font-size: 17px; letter-spacing: -.02em; }
.brand-text small { margin-top: 5px; color: var(--muted); font-size: 10px; letter-spacing: .11em; text-transform: uppercase; }
.site-nav { display: flex; align-items: center; gap: 25px; }
.site-nav a { position: relative; color: #405669; font-size: 14px; font-weight: 650; }
.site-nav a:hover, .site-nav a.active { color: var(--blue); }
.site-nav a.active::after { content: ""; position: absolute; right: 0; bottom: -27px; left: 0; height: 2px; background: var(--blue); }
.nav-cta { margin-left: 2px; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--navy);
  font-size: 23px;
  cursor: pointer;
  user-select: none;
}
.menu-checkbox { position: absolute; width: 1px; height: 1px; overflow: hidden; opacity: 0; pointer-events: none; }
.menu-checkbox:focus-visible + .menu-toggle { outline: 3px solid rgba(12,102,228,.22); outline-offset: 2px; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 94px 0 88px;
  background:
    radial-gradient(circle at 86% 22%, rgba(39,168,216,.16), transparent 28%),
    linear-gradient(180deg, #f6faff 0%, #fff 100%);
}
.hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 32%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0 48%, rgba(12,102,228,.035) 48% 52%, transparent 52% 100%);
  background-size: 42px 42px;
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 70px; }
.hero-grid-single { grid-template-columns: minmax(0, 760px); }
.hero-copy h1 span { color: var(--blue); }
.hero-copy .lead { max-width: 670px; margin-top: 25px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 34px; color: #425b70; font-size: 14px; }
.hero-points span { display: flex; align-items: center; gap: 8px; }
.hero-points span::before { content: "✓"; color: var(--success); font-weight: 900; }
.hero-media { position: relative; }
.hero-media img { aspect-ratio: 1.1; border-radius: 22px; object-fit: cover; box-shadow: var(--shadow); }
.media-badge {
  position: absolute;
  right: -22px;
  bottom: 28px;
  max-width: 210px;
  padding: 17px 19px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  box-shadow: var(--shadow);
}
.media-badge strong { display: block; color: var(--navy); font-size: 14px; }
.media-badge span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }

.trust-strip { border-block: 1px solid var(--line); background: white; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-item { padding: 24px 22px; border-right: 1px solid var(--line); text-align: center; }
.trust-item:last-child { border-right: 0; }
.trust-item strong { display: block; color: var(--navy); font-size: 1.15rem; }
.trust-item span { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }

.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  box-shadow: 0 8px 24px rgba(10,37,64,.045);
}
.card:hover { border-color: #b8cee2; box-shadow: var(--shadow); }
.card-media { overflow: hidden; background: #eaf2fb; }
.card-media img { aspect-ratio: 16 / 10; padding: 10px; background: #f8fafc; object-fit: contain; }
.card-body { padding: 24px; }
.card-label { margin-bottom: 10px; color: var(--blue); font-size: 12px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.card-body p { margin: 11px 0 18px; color: var(--muted); font-size: 14px; }
.spec-line { display: flex; flex-wrap: wrap; gap: 7px; margin: 16px 0 19px; }
.chip { border-radius: 999px; padding: 5px 10px; background: #edf5ff; color: #28547d; font-size: 12px; font-weight: 650; }
.card-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; }

.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 17px; }
.capability {
  min-height: 210px;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}
.number-icon { display: grid; width: 42px; height: 42px; place-items: center; margin-bottom: 30px; border-radius: 10px; background: #e9f3ff; color: var(--blue); font-size: 13px; font-weight: 850; }
.capability p { margin-top: 11px; color: var(--muted); font-size: 14px; }

.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 70px; }
.split-media img { aspect-ratio: 4/3; border-radius: var(--radius); object-fit: cover; box-shadow: var(--shadow); }
.company-copy { max-width: 760px; }
.check-list { display: grid; gap: 13px; margin: 25px 0 30px; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 29px; color: #405669; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--success); font-weight: 900; }

.quote-section { background: var(--navy); color: white; }
.quote-grid { display: grid; grid-template-columns: .88fr 1.12fr; gap: 70px; align-items: start; }
.quote-copy h2, .quote-copy h3 { color: white; }
.quote-copy .eyebrow { color: #70caff; }
.quote-copy p { margin-top: 19px; color: #c2d1df; }
.contact-mini { display: grid; gap: 13px; margin-top: 28px; }
.contact-mini a, .contact-mini span { display: flex; align-items: center; gap: 11px; color: #e1ecf5; font-size: 14px; }
.quote-form, .contact-form { padding: 30px; border-radius: var(--radius); background: white; color: var(--ink); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { color: var(--navy); font-size: 13px; font-weight: 700; }
.field input, .field textarea, .field select {
  width: 100%;
  border: 1px solid #cedbe7;
  border-radius: 8px;
  padding: 12px 13px;
  background: white;
  color: var(--ink);
  outline: none;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(12,102,228,.1); }
.field textarea { min-height: 120px; resize: vertical; }
.form-note { margin-top: 13px; color: var(--muted); font-size: 12px; }
.form-submit-status { margin-top: 10px; color: var(--muted); font-size: 13px; }
.form-submit-status:empty { display: none; }
.form-submit-status.is-error { border-left: 3px solid #c83c3c; padding: 9px 11px; background: #fff1f1; color: #8f2424; }
.btn.is-submitting { cursor: wait; opacity: .72; }

.thank-you-page { display: flex; min-height: 100vh; flex-direction: column; }
.thank-you-page main { display: flex; flex: 1; }
.thank-you-section { position: relative; display: flex; width: 100%; align-items: center; overflow: hidden; padding: 86px 0 96px; background: radial-gradient(circle at 12% 16%, rgba(39,168,216,.12), transparent 28%), radial-gradient(circle at 88% 82%, rgba(12,102,228,.1), transparent 30%), linear-gradient(145deg, #f8fbff 0%, #eef6fd 100%); }
.thank-you-section::before, .thank-you-section::after { content: ""; position: absolute; width: 230px; height: 230px; border: 1px solid rgba(12,102,228,.12); border-radius: 50%; pointer-events: none; }
.thank-you-section::before { top: -125px; right: 8%; }
.thank-you-section::after { bottom: -155px; left: 5%; width: 300px; height: 300px; }
.thank-you-container { position: relative; z-index: 1; max-width: 820px; }
.thank-you-card { position: relative; overflow: hidden; border: 1px solid rgba(186,207,226,.9); border-radius: 22px; padding: 54px 58px 48px; background: rgba(255,255,255,.96); box-shadow: 0 28px 70px rgba(10,37,64,.12); text-align: center; }
.thank-you-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 4px; background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.thank-you-icon { display: inline-flex; width: 70px; height: 70px; align-items: center; justify-content: center; margin-bottom: 20px; border: 8px solid #eaf8f3; border-radius: 50%; background: #14a475; color: white; font-size: 24px; box-shadow: 0 8px 22px rgba(20,164,117,.18); }
.thank-you-kicker { display: block; margin-bottom: 10px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.thank-you-card h1 { max-width: 650px; margin-inline: auto; font-size: clamp(2rem, 5vw, 3.2rem); }
.thank-you-lead { max-width: 660px; margin: 19px auto 0; color: var(--muted); font-size: 1.04rem; line-height: 1.8; }
.thank-you-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 30px; }
.thank-you-next { margin-top: 42px; padding-top: 30px; border-top: 1px solid var(--line); text-align: left; }
.thank-you-next h2 { margin-bottom: 18px; font-size: 1.25rem; }
.thank-you-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.thank-you-step { display: grid; grid-template-columns: 40px 1fr; gap: 12px; border: 1px solid #dce8f2; border-radius: 12px; padding: 17px; background: #f8fbfe; }
.thank-you-step > span { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; border-radius: 9px; background: #e8f2ff; color: var(--blue); font-size: 11px; font-weight: 800; }
.thank-you-step strong { display: block; color: var(--navy); font-size: 14px; }
.thank-you-step p { margin-top: 4px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.thank-you-contact { display: flex; align-items: flex-start; gap: 13px; margin-top: 17px; border-radius: 12px; padding: 16px 18px; background: var(--navy); color: white; text-align: left; }
.thank-you-contact > i { margin-top: 3px; color: #55d98f; font-size: 22px; }
.thank-you-contact strong, .thank-you-contact span { display: block; }
.thank-you-contact strong { font-size: 13px; }
.thank-you-contact span { margin-top: 2px; color: #c7d7e4; font-size: 12px; }
.thank-you-contact a { color: white; text-decoration: underline; text-underline-offset: 2px; }

.page-hero { padding: 75px 0 66px; background: linear-gradient(145deg, #f5f9fe, #edf5fd); }
.page-hero .lead { max-width: 760px; margin-top: 18px; }
.breadcrumbs { display: flex; gap: 8px; margin-bottom: 19px; color: var(--muted); font-size: 13px; }
.policy-content { max-width: 860px; }
.policy-updated { margin-bottom: 28px; color: var(--muted); font-size: 14px; }
.policy-content section + section { margin-top: 34px; }
.policy-content h2 { margin-bottom: 12px; font-size: 1.55rem; }
.policy-content p + p { margin-top: 12px; }
.policy-content ul { margin: 12px 0 0; padding-left: 22px; }
.policy-content li + li { margin-top: 7px; }
.policy-content a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.breadcrumbs a { color: var(--blue); }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 31px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
}
.search-box { min-width: min(100%, 320px); flex: 1; }
.search-box input { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 11px 13px; }
.filter-buttons { display: flex; flex-wrap: wrap; gap: 7px; }
.filter-btn { border: 1px solid var(--line); border-radius: 999px; padding: 8px 13px; background: white; color: #466074; font-size: 13px; cursor: pointer; }
.filter-btn.active, .filter-btn:hover { border-color: var(--blue); background: #edf5ff; color: var(--blue); }
.no-results { display: none; padding: 40px; border: 1px dashed var(--line); border-radius: 12px; color: var(--muted); text-align: center; }

.product-detail-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 60px; align-items: start; }
.product-gallery-main { min-width: 0; }
.gallery-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin: 0 0 12px; }
.gallery-heading strong { color: var(--navy); font-size: 1.05rem; }
.gallery-heading span { min-width: 62px; color: var(--muted); font-size: 12px; text-align: right; }
.gallery-stage { position: relative; overflow: hidden; aspect-ratio: 1.2; border: 1px solid var(--line); border-radius: var(--radius); background: #f8fafc; }
.gallery-stage:focus-visible { outline: 3px solid rgba(12,102,228,.22); outline-offset: 3px; }
.gallery-stage > img { height: 100%; padding: 20px; cursor: zoom-in; object-fit: contain; }
.gallery-stage > img:focus-visible { outline: 3px solid rgba(12,102,228,.28); outline-offset: -5px; }
.gallery-zoom-hint { position: absolute; bottom: 12px; left: 50%; z-index: 1; display: inline-flex; align-items: center; gap: 7px; border-radius: 999px; padding: 6px 10px; background: rgba(10,37,64,.78); color: white; font-size: 11px; line-height: 1; pointer-events: none; transform: translateX(-50%); }
.gallery-nav { position: absolute; top: 50%; z-index: 1; display: inline-flex; width: 42px; height: 42px; align-items: center; justify-content: center; border: 1px solid rgba(10,37,64,.16); border-radius: 50%; background: rgba(255,255,255,.94); color: var(--navy); box-shadow: 0 6px 18px rgba(10,37,64,.12); cursor: pointer; transform: translateY(-50%); }
.gallery-nav:hover, .gallery-nav:focus-visible { border-color: var(--blue); color: var(--blue); }
.gallery-prev { left: 12px; }
.gallery-next { right: 12px; }
.product-thumbnails { display: grid; gap: 18px; margin-top: 14px; }
.product-thumbnail-group { display: grid; gap: 9px; }
.thumbnail-group-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 7px; border-bottom: 1px solid var(--line); color: var(--navy); font-size: 12px; font-weight: 750; letter-spacing: .02em; }
.thumbnail-group-heading span { color: var(--muted); font-size: 11px; font-weight: 550; letter-spacing: 0; }
.product-thumbnail-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; }
.product-thumb { position: relative; overflow: hidden; aspect-ratio: 1; border: 1px solid var(--line); border-radius: 8px; padding: 0; background: #f8fafc; cursor: pointer; }
.product-thumb::after { content: attr(data-thumb-label); position: absolute; right: 4px; bottom: 4px; min-width: 20px; padding: 1px 5px; border-radius: 999px; background: rgba(10,37,64,.72); color: white; font-size: 9px; line-height: 1.5; text-align: center; }
.product-thumb:hover, .product-thumb.active { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(12,102,228,.12); }
.product-thumb:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.product-thumb img { width: 100%; height: 100%; padding: 5px; background: #f8fafc; object-fit: contain; }
.image-lightbox[hidden] { display: none; }
.image-lightbox { position: fixed; inset: 0; z-index: 2000; display: grid; place-items: center; padding: 48px 76px 36px; background: rgba(4,18,31,.9); }
.lightbox-frame { display: grid; max-width: min(1180px, calc(100vw - 170px)); max-height: calc(100vh - 88px); margin: 0; justify-items: center; gap: 10px; }
.lightbox-frame img { width: auto; max-width: 100%; max-height: calc(100vh - 120px); border-radius: 10px; padding: 16px; background: white; object-fit: contain; }
.lightbox-frame figcaption { min-height: 20px; color: #d7e3ed; font-size: 13px; text-align: center; }
.lightbox-close, .lightbox-nav { display: inline-flex; align-items: center; justify-content: center; border: 1px solid rgba(255,255,255,.28); border-radius: 50%; background: rgba(255,255,255,.12); color: white; cursor: pointer; }
.lightbox-nav[hidden] { display: none; }
.lightbox-close:hover, .lightbox-close:focus-visible, .lightbox-nav:hover, .lightbox-nav:focus-visible { border-color: white; background: rgba(255,255,255,.22); }
.lightbox-close { position: absolute; top: 18px; right: 20px; width: 44px; height: 44px; font-size: 20px; }
.lightbox-nav { position: absolute; top: 50%; width: 48px; height: 48px; font-size: 17px; transform: translateY(-50%); }
.lightbox-prev { left: 18px; }
.lightbox-next { right: 18px; }
.product-kicker { color: var(--blue); font-size: 13px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.product-detail-copy h1 { margin-top: 10px; font-size: clamp(2.25rem, 5vw, 3.5rem); }
.product-summary { margin-top: 20px; color: var(--muted); font-size: 1.05rem; }
.product-detail-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 27px 0 33px; }
.detail-block { padding: 24px 0; border-top: 1px solid var(--line); }
.detail-block h2 { margin-bottom: 17px; font-size: 1.35rem; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 11px 18px; margin: 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 24px; color: #405669; font-size: 14px; }
.feature-list li::before { content: "•"; position: absolute; left: 6px; color: var(--blue); font-weight: 900; }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th, .spec-table td { padding: 11px 13px; border: 1px solid var(--line); vertical-align: top; text-align: left; font-size: 14px; }
.spec-table th { width: 35%; background: var(--soft); color: var(--navy); }
.compliance-note { padding: 15px 17px; border-left: 3px solid #f0aa1f; border-radius: 6px; background: #fff8e8; color: #6d5524; font-size: 13px; }

.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cert-card { border: 1px solid var(--line); border-radius: var(--radius); background: white; overflow: hidden; }
.cert-card img { aspect-ratio: 4/3; object-fit: cover; }
.cert-card .card-body { min-height: 215px; }
.status-pill { display: inline-flex; margin-bottom: 12px; border-radius: 999px; padding: 5px 10px; background: #fff4db; color: var(--warning); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.verification-box { padding: 24px; border: 1px solid #bfd7ee; border-radius: var(--radius); background: #f0f7ff; }
.verification-box h3 { margin-bottom: 10px; }
.verification-box p { color: #4f667b; }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.stat { padding: 28px 20px; background: white; text-align: center; }
.stat strong { display: block; color: var(--blue); font-size: 2rem; }
.stat span { color: var(--muted); font-size: 13px; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.timeline-item { padding: 22px; border-top: 3px solid var(--blue); background: white; }
.timeline-item strong { color: var(--blue); }
.timeline-item h3 { margin: 7px 0 9px; font-size: 1.05rem; }
.timeline-item p { color: var(--muted); font-size: 13px; }

.contact-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 50px; }
.contact-cards { display: grid; gap: 14px; margin-top: 27px; }
.contact-card { padding: 19px; border: 1px solid var(--line); border-radius: 10px; background: white; }
.contact-card small { display: block; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.contact-card strong, .contact-card a { display: block; margin-top: 5px; color: var(--navy); font-weight: 700; }
.contact-form { border: 1px solid var(--line); box-shadow: var(--shadow); }

.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.article-meta { display: flex; gap: 13px; color: var(--muted); font-size: 12px; }
.article-card h3 { margin-top: 11px; }
.article-card p { margin-top: 10px; }
.article-card time { color: var(--muted); }

.cta-banner { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 42px 46px; border-radius: 18px; background: linear-gradient(120deg, var(--blue-dark), var(--blue)); color: white; }
.cta-banner h2 { color: white; }
.cta-banner p { margin-top: 10px; color: #dcecff; }

.site-footer { background: #071c2e; color: #aebfce; }
.footer-main { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 46px; padding: 62px 0 44px; }
.footer-brand p { max-width: 340px; margin-top: 18px; font-size: 14px; }
.footer-title { margin-bottom: 16px; color: white; font-size: 14px; font-weight: 750; }
.footer-links { display: grid; gap: 9px; }
.footer-links a { font-size: 14px; }
.footer-links a:hover { color: white; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; border-top: 1px solid #183449; font-size: 12px; }

.whatsapp-float {
  position: fixed;
  z-index: 1100;
  right: 22px;
  bottom: 22px;
  display: inline-flex;
  width: 58px;
  height: 58px;
  align-items: center;
  justify-content: center;
  border: 3px solid white;
  border-radius: 50%;
  background: #25d366;
  color: white;
  box-shadow: 0 10px 26px rgba(0,0,0,.2);
  font-size: 24px;
  font-weight: 850;
}
.whatsapp-float:hover { background: #1dbb59; }

@media (max-width: 1040px) {
  .site-nav { gap: 17px; }
  .site-nav a { font-size: 13px; }
  .hero-grid, .split, .quote-grid, .product-detail-grid, .contact-grid { gap: 42px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .cards-grid, .cert-grid, .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-main > :last-child { grid-column: 1 / -1; }
}

@media (max-width: 820px) {
  .container { width: min(calc(100% - 30px), var(--container)); }
  .section { padding: 68px 0; }
  .menu-toggle { display: grid; place-items: center; }
  .site-nav {
    position: fixed;
    inset: 77px 0 auto;
    display: none;
    max-height: calc(100vh - 77px);
    overflow: auto;
    padding: 20px;
    border-bottom: 1px solid var(--line);
    background: white;
    box-shadow: var(--shadow);
  }
  .site-nav.open, .menu-checkbox:checked + .menu-toggle + .site-nav { display: grid; align-items: stretch; gap: 0; }
  .site-nav a { padding: 14px 4px; border-bottom: 1px solid var(--line); font-size: 15px; }
  .site-nav a.active::after { display: none; }
  .site-nav .btn { margin-top: 12px; border-bottom: 0; }
  .hero { padding: 70px 0; }
  .hero-grid, .split, .quote-grid, .product-detail-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-media { max-width: 620px; }
  .media-badge { right: 15px; }
  .trust-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-item:nth-child(2) { border-right: 0; }
  .trust-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .product-gallery-main { position: static; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1.4fr 1fr; }
  .footer-main > :last-child { grid-column: auto; }
  .cta-banner { align-items: flex-start; flex-direction: column; padding: 34px; }
}

@media (max-width: 560px) {
  body { font-size: 15px; }
  .brand-text small { display: none; }
  .hero { padding: 55px 0 60px; }
  h1 { font-size: 2.5rem; }
  .hero-actions .btn { width: 100%; }
  .hero-points { display: grid; gap: 10px; }
  .media-badge { position: static; max-width: none; margin-top: 12px; }
  .cards-grid, .cert-grid, .blog-grid, .capability-grid, .timeline, .footer-main { grid-template-columns: 1fr; }
  .trust-grid, .stats-grid { grid-template-columns: 1fr 1fr; }
  .card-body { padding: 21px; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .quote-form, .contact-form { padding: 22px; }
  .thank-you-section { padding: 52px 0 60px; }
  .thank-you-card { border-radius: 16px; padding: 38px 20px 28px; }
  .thank-you-icon { width: 62px; height: 62px; border-width: 7px; font-size: 21px; }
  .thank-you-actions .btn { width: 100%; }
  .thank-you-steps { grid-template-columns: 1fr; }
  .thank-you-contact { padding: 15px; }
  .feature-list { grid-template-columns: 1fr; }
  .gallery-stage { aspect-ratio: 1; }
  .gallery-stage > img { padding: 12px; }
  .gallery-nav { width: 38px; height: 38px; }
  .gallery-zoom-hint { bottom: 9px; }
  .product-thumbnail-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .image-lightbox { padding: 62px 12px 34px; }
  .lightbox-frame { max-width: calc(100vw - 24px); max-height: calc(100vh - 96px); }
  .lightbox-frame img { max-height: calc(100vh - 132px); padding: 8px; }
  .lightbox-close { top: 10px; right: 10px; }
  .lightbox-nav { width: 40px; height: 40px; background: rgba(10,37,64,.64); }
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }
  .spec-table th, .spec-table td { display: block; width: 100%; }
  .spec-table tr { display: block; margin-bottom: 10px; }
  .footer-main > :last-child { grid-column: auto; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
  .whatsapp-float { right: 15px; bottom: 15px; width: 54px; height: 54px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* Font Awesome icon alignment */
.whatsapp-float {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.whatsapp-float .fa-whatsapp { font-size: 28px; line-height: 1; }
.menu-toggle .fa-bars { font-size: 23px; line-height: 1; }