/* ============================================
   Juhuo Special Steel - Landing Page Styles
   Theme: Industrial · White/Gray · Red CTA
   ============================================ */

:root {
  /* Colors sampled from jhtg-metal.com */
  --brand-red: #cf1f1f;
  --brand-red-dark: #a81818;
  --brand-red-light: #e34242;
  --brand-blue-1: #0066ff;
  --brand-blue-2: #00aaff;
  --blue-grad: linear-gradient(90deg, var(--brand-blue-1), var(--brand-blue-2));
  --wa-green: #25d366;
  --wa-green-dark: #1da851;

  --ink: #171a1d;
  --body: #646464;
  --body-soft: #8a8a8a;
  --line: #e6e8eb;
  --line-soft: #f1f3f5;
  --bg: #ffffff;
  --bg-soft: #f7f9fb;
  --bg-dark: #0e1418;

  --radius: 6px;
  --radius-lg: 14px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 30, 0.06);
  --shadow: 0 10px 30px rgba(15, 23, 30, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 30, 0.14);

  --container: 1240px;
  --ease: cubic-bezier(0.4, 0.15, 0.2, 1);

  --font: "Nunito Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--body);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s var(--ease); }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: all 0.25s var(--ease);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--brand-red);
  color: #fff;
  box-shadow: 0 8px 20px rgba(207, 31, 31, 0.28);
}
.btn-primary:hover {
  background: var(--brand-red-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(207, 31, 31, 0.38);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: #fff; color: var(--brand-red); border-color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--brand-red);
  border: 2px solid var(--brand-red);
}
.btn-outline:hover { background: var(--brand-red); color: #fff; }
.btn-wa {
  background: var(--wa-green);
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.32);
}
.btn-wa:hover { background: var(--wa-green-dark); transform: translateY(-2px); }
.btn-ghost-light {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}
.btn-ghost-light:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  padding: 8px 0;
}
.topbar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.topbar-left { display: flex; gap: 12px; align-items: center; }
.topbar-left .dot { opacity: 0.4; }
.topbar-wa { color: #fff; font-weight: 600; }
.topbar-wa:hover { color: var(--wa-green); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 20, 24, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.site-header.scrolled {
  background: rgba(14, 20, 24, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 44px; height: 44px;
  background: var(--blue-grad);
  color: #fff;
  font-weight: 900;
  font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius);
  letter-spacing: -1px;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text strong { color: #fff; font-size: 18px; font-weight: 900; letter-spacing: 0.04em; }
.logo-text small { color: rgba(255, 255, 255, 0.65); font-size: 11px; letter-spacing: 0.18em; font-weight: 700; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  border-radius: var(--radius);
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: 4px; left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 20px; height: 2px;
  background: var(--brand-red-light);
  transition: transform 0.25s var(--ease);
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after, .nav-link.active::after { transform: translateX(-50%) scaleX(1); }
.nav-link.active { color: #fff; }
.nav-cta {
  margin-left: 12px;
  background: var(--wa-green);
  color: #fff !important;
  padding: 10px 20px !important;
  border-radius: 30px;
  font-weight: 700;
}
.nav-cta:hover { background: var(--wa-green-dark); transform: translateY(-1px); }
.nav-cta::after { display: none; }

.menu-toggle {
  display: none;
  width: 40px; height: 40px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  align-items: center;
}
.menu-toggle span {
  width: 22px; height: 2px;
  background: #fff;
  transition: all 0.3s var(--ease);
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('images/banner.jpg');
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroZoom 20s ease-in-out infinite alternate;
}
@keyframes heroZoom {
  from { transform: scale(1.05); }
  to { transform: scale(1.18); }
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(110deg, rgba(14, 20, 24, 0.35) 0%, rgba(14, 20, 24, 0.7) 45%, rgba(207, 31, 31, 0.08) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 760px; padding: 80px 24px; }
.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 30px;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}
.hero-title {
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 22px;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
}
.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 36px;
  max-width: 620px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats {
  display: flex;
  gap: 48px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  flex-wrap: wrap;
}
.hero-stats > div { display: flex; flex-direction: column; }
.hero-stats strong {
  font-size: 38px;
  font-weight: 900;
  color: #fff;
  line-height: 1;
  background: var(--blue-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-stats span { font-size: 13px; color: rgba(255, 255, 255, 0.7); margin-top: 6px; letter-spacing: 0.05em; }

.scroll-cue {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 16px;
  z-index: 2;
}
.scroll-cue span {
  position: absolute;
  top: 8px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: #fff;
  border-radius: 2px;
  animation: scrollCue 1.6s infinite;
}
@keyframes scrollCue {
  0% { opacity: 0; transform: translate(-50%, 0); }
  50% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, 14px); }
}

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brand-red);
  margin-bottom: 14px;
  position: relative;
  padding: 0 24px;
}
.eyebrow::before, .eyebrow::after {
  content: "";
  position: absolute; top: 50%;
  width: 16px; height: 2px;
  background: var(--brand-red);
}
.eyebrow::before { left: 0; }
.eyebrow::after { right: 0; }
.eyebrow-light { color: rgba(255, 255, 255, 0.9); }
.eyebrow-light::before, .eyebrow-light::after { background: rgba(255, 255, 255, 0.7); }
.section-title {
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 900;
  color: var(--ink);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.section-desc { font-size: 16px; color: var(--body); max-width: 620px; margin: 0 auto; }

/* ---------- Products ---------- */
.products { background: var(--bg-soft); }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.product-card {
  position: relative;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.35s var(--ease);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.product-badge {
  position: absolute;
  top: 16px; left: 16px;
  z-index: 2;
  background: var(--brand-red);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 30px;
  box-shadow: 0 4px 12px rgba(207, 31, 31, 0.35);
}
.product-badge.badge-blue { background: var(--brand-blue-1); box-shadow: 0 4px 12px rgba(0, 102, 255, 0.35); }
.product-badge.badge-green { background: var(--wa-green); box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35); }
.product-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  background-size: cover;
  background-position: center;
  transition: transform 0.5s var(--ease);
}
.product-card:hover .product-img { transform: scale(1.06); }
.product-body { padding: 26px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.product-tags { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.product-tags span {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-red);
  background: rgba(207, 31, 31, 0.08);
  padding: 5px 11px;
  border-radius: 30px;
}
.product-body h3 {
  font-size: 21px;
  font-weight: 900;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 12px;
}
.product-body > p {
  font-size: 14.5px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 18px;
  flex: 1;
}
.product-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 20px;
}
.product-specs > div { display: flex; flex-direction: column; }
.product-specs strong { font-size: 11px; font-weight: 700; color: var(--body-soft); text-transform: uppercase; letter-spacing: 0.05em; }
.product-specs span { font-size: 14px; font-weight: 700; color: var(--ink); margin-top: 3px; }
.product-actions { display: flex; gap: 10px; }
.btn-sm { padding: 11px 18px; font-size: 13.5px; flex: 1; }

/* ---------- Product details (Tabbed) ---------- */
.product-details { background: #fff; }
.tabs { max-width: 1080px; margin: 0 auto; }
.tab-nav {
  display: flex;
  gap: 6px;
  background: var(--bg-soft);
  padding: 8px;
  border-radius: var(--radius-lg);
  margin-bottom: 36px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 18px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--body);
  border-radius: var(--radius);
  transition: all 0.25s var(--ease);
  white-space: nowrap;
  min-width: max-content;
}
.tab-btn svg { flex-shrink: 0; }
.tab-btn:hover { color: var(--ink); background: rgba(255, 255, 255, 0.6); }
.tab-btn.active {
  background: #fff;
  color: var(--brand-red);
  box-shadow: var(--shadow-sm);
}
.tab-panel { display: none; animation: fadeTab 0.4s var(--ease); }
.tab-panel.active { display: block; }
@keyframes fadeTab {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Spec cards */
.spec-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 36px;
}
.spec-card {
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  border-top: 3px solid var(--brand-red);
  transition: all 0.25s var(--ease);
}
.spec-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); background: #fff; }
.spec-card-icon {
  width: 48px; height: 48px;
  margin: 0 auto 14px;
  background: var(--blue-grad);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 0.02em;
}
.spec-card-label { font-size: 12px; color: var(--body-soft); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.spec-card-value { font-size: 28px; font-weight: 900; color: var(--ink); line-height: 1.1; }
.spec-card-unit { font-size: 13px; color: var(--brand-red); font-weight: 700; margin-top: 4px; }

/* Composition bars */
.spec-composition {
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  padding: 30px;
}
.spec-composition h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 22px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--brand-red);
  display: inline-block;
}
.comp-bars { display: flex; flex-direction: column; gap: 12px; }
.comp-bar {
  display: grid;
  grid-template-columns: 40px 1fr 70px;
  gap: 16px;
  align-items: center;
}
.comp-name {
  font-size: 14px;
  font-weight: 800;
  color: var(--ink);
  text-align: center;
  background: #fff;
  padding: 4px;
  border-radius: var(--radius);
}
.comp-track {
  height: 10px;
  background: #fff;
  border-radius: 5px;
  overflow: hidden;
}
.comp-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--brand-blue-1), var(--brand-blue-2));
  border-radius: 5px;
  transition: width 1s var(--ease);
}
.comp-val { font-size: 13px; font-weight: 700; color: var(--ink); text-align: right; }

/* Features list */
.features-list { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 36px; }
.feature-item {
  display: flex;
  gap: 18px;
  padding: 24px;
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--brand-red);
  transition: all 0.25s var(--ease);
}
.feature-item:hover { transform: translateX(4px); box-shadow: var(--shadow); }
.feature-icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  background: var(--blue-grad);
  color: #fff;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
}
.feature-item h4 { font-size: 17px; font-weight: 800; color: var(--ink); margin-bottom: 8px; }
.feature-item p { font-size: 14px; color: var(--body); line-height: 1.65; }

.applications { text-align: center; }
.applications h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 22px;
}
.app-chips { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.app-chips span {
  padding: 10px 22px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  transition: all 0.25s var(--ease);
}
.app-chips span:hover { background: var(--brand-red); color: #fff; border-color: var(--brand-red); transform: translateY(-2px); }

/* Certifications */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 28px;
}
.cert-card {
  background: var(--bg-soft);
  padding: 28px 20px;
  border-radius: var(--radius-lg);
  text-align: center;
  border-top: 3px solid var(--brand-red);
  transition: all 0.25s var(--ease);
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); background: #fff; }
.cert-icon {
  width: 56px; height: 56px;
  margin: 0 auto 14px;
  background: var(--blue-grad);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900;
  font-size: 16px;
}
.cert-card h4 { font-size: 15px; color: var(--ink); font-weight: 800; margin-bottom: 8px; }
.cert-card p { font-size: 13px; color: var(--body); }
.cert-note {
  background: rgba(37, 211, 102, 0.08);
  border-left: 4px solid var(--wa-green);
  padding: 18px 22px;
  border-radius: var(--radius);
  font-size: 14.5px;
  color: var(--body);
}
.cert-note strong { color: var(--ink); }
.cert-note a { color: var(--wa-green-dark); font-weight: 700; }
.cert-note a:hover { text-decoration: underline; }

/* FAQ */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all 0.25s var(--ease);
  background: #fff;
}
.faq-item.open { border-color: var(--brand-red); box-shadow: var(--shadow-sm); }
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  text-align: left;
  transition: all 0.25s var(--ease);
}
.faq-q:hover { background: var(--bg-soft); }
.faq-icon {
  width: 26px; height: 26px;
  background: var(--bg-soft);
  color: var(--brand-red);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-weight: 900;
  flex-shrink: 0;
  transition: transform 0.3s var(--ease);
}
.faq-item.open .faq-q { color: var(--brand-red); }
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--brand-red); color: #fff; }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease), padding 0.35s var(--ease);
  padding: 0 22px;
}
.faq-item.open .faq-a { max-height: 300px; padding: 0 22px 20px; }
.faq-a p { font-size: 14.5px; color: var(--body); line-height: 1.7; }

/* ---------- Product video ---------- */
.product-video { background: var(--bg-soft); }
.video-wrapper {
  position: relative;
  max-width: 1080px;
  margin: 0 auto 56px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16 / 9;
  background: #000;
}
.video-wrapper video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.video-play {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 88px; height: 88px;
  border-radius: 50%;
  background: rgba(207, 31, 31, 0.92);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 40px rgba(207, 31, 31, 0.5);
  transition: all 0.25s var(--ease);
  z-index: 2;
}
.video-play::before {
  content: "";
  position: absolute;
  inset: -6px;
  border: 2px solid rgba(207, 31, 31, 0.4);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.4); opacity: 0; }
}
.video-play:hover { background: var(--brand-red-dark); transform: translate(-50%, -50%) scale(1.08); }
.video-play.hidden { opacity: 0; pointer-events: none; }

.video-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1080px;
  margin: 0 auto;
}
.vf { text-align: left; padding: 24px; border-top: 3px solid var(--brand-red); background: var(--bg-soft); border-radius: var(--radius); }
.vf-num { font-size: 22px; font-weight: 900; color: var(--brand-red); margin-bottom: 12px; letter-spacing: 0.05em; }
.vf h4 { font-size: 17px; color: var(--ink); font-weight: 800; margin-bottom: 10px; }
.vf p { font-size: 14px; color: var(--body); }

/* ---------- Gallery / Carousel ---------- */
.gallery { background: var(--bg-soft); }
.carousel {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.carousel-track {
  display: flex;
  transition: transform 0.7s var(--ease);
  aspect-ratio: 16 / 8;
}
.car-slide {
  flex: 0 0 100%;
  position: relative;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-end;
}
.car-slide::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(14, 20, 24, 0.85) 0%, rgba(14, 20, 24, 0.2) 50%, transparent 100%);
}
.car-caption {
  position: relative;
  z-index: 2;
  color: #fff;
  padding: 50px 60px;
  max-width: 640px;
}
.car-caption h3 { font-size: 26px; font-weight: 900; margin-bottom: 10px; }
.car-caption p { font-size: 15px; color: rgba(255, 255, 255, 0.88); }

.car-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  display: flex; align-items: center; justify-content: center;
  z-index: 3;
  box-shadow: var(--shadow);
  transition: all 0.25s var(--ease);
}
.car-arrow:hover { background: var(--brand-red); color: #fff; }
.car-prev { left: 18px; }
.car-next { right: 18px; }

.car-dots {
  position: absolute;
  bottom: 22px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 3;
}
.car-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.car-dot.active { background: #fff; width: 30px; border-radius: 5px; }

/* ---------- Product description ---------- */
.product-desc { background: #fff; }
.pd-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.pd-img-main {
  width: 100%;
  aspect-ratio: 4 / 3;
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-bottom: 14px;
}
.pd-thumbs { display: flex; gap: 12px; }
.pd-thumb {
  flex: 1;
  aspect-ratio: 1;
  background-size: cover;
  background-position: center;
  border-radius: var(--radius);
  cursor: pointer;
  opacity: 0.6;
  transition: all 0.25s var(--ease);
  border: 2px solid rgb(14 20 24 / 95%);
}
.pd-thumb:hover, .pd-thumb.active { opacity: 1; border-color: var(--brand-red); }

.pd-tags { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.tag {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-red);
  background: rgba(207, 31, 31, 0.08);
  padding: 5px 12px;
  border-radius: 30px;
}
.pd-content h3 { font-size: 30px; font-weight: 900; color: var(--ink); margin-bottom: 14px; line-height: 1.25; }
.pd-lead { font-size: 18px; color: var(--ink); font-weight: 600; margin-bottom: 16px; line-height: 1.6; }
/* .pd-content p:not(.pd-lead) { font-size: 15px; margin-bottom: 22px; } */
.pd-bullets { margin-bottom: 28px; }
.pd-bullets li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  font-size: 15px;
  color: var(--ink);
}
.check {
  width: 22px; height: 22px;
  background: var(--wa-green);
  color: #fff;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 900;
  flex-shrink: 0;
}
.pd-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Why us / stats ---------- */
.why-us {
  background: var(--bg-dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.why-us::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('images/count.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
}
.why-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
  text-align: center;
}
.why-num {
  font-size: 64px;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 12px;
  background: var(--blue-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.num-suffix { color: var(--brand-red-light); -webkit-text-fill-color: var(--brand-red-light); }
.why-stat p { font-size: 15px; color: rgba(255, 255, 255, 0.8); letter-spacing: 0.04em; }

/* ---------- Contact CTA ---------- */
.contact-cta { padding: 80px 0; background: #fff; }
.cta-box {
  background: var(--bg-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  position: relative;
}
.cta-content { padding: 64px; color: #fff; }
.cta-content h2 { font-size: 34px; font-weight: 900; line-height: 1.2; margin-bottom: 18px; }
.cta-content p { font-size: 16px; color: rgba(255, 255, 255, 0.82); margin-bottom: 28px; max-width: 480px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-visual {
  background-image: url('images/contact.jpg');
  background-size: cover;
  background-position: center;
  min-height: 360px;
  position: relative;
}
.cta-visual::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to right, var(--bg-dark) 0%, transparent 30%);
}

/* ---------- Footer ---------- */
.site-footer { background: #0a0f12; color: rgba(255, 255, 255, 0.7); padding-top: 64px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .logo-text strong { color: #fff; }
.footer-brand .logo-text small { color: rgba(255, 255, 255, 0.5); }
.footer-brand p { margin: 18px 0 22px; font-size: 14px; color: rgba(255, 255, 255, 0.6); }
.footer-social { display: flex; gap: 14px; flex-wrap: wrap; }
.footer-social a {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 30px;
  transition: all 0.25s var(--ease);
}
.footer-social a:hover { background: var(--brand-red); border-color: var(--brand-red); }
.footer-col h4 {
  font-size: 15px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-col ul li { margin-bottom: 11px; font-size: 14px; }
.footer-col ul li a { color: rgba(255, 255, 255, 0.65); }
.footer-col ul li a:hover { color: var(--brand-red-light); padding-left: 4px; }
.footer-contact li { color: rgba(255, 255, 255, 0.6); line-height: 1.6; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
}
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-bottom p { font-size: 13px; color: rgba(255, 255, 255, 0.5); }

/* ---------- Floating WhatsApp ---------- */
.float-wa {
  position: fixed;
  bottom: 26px; right: 26px;
  width: 60px; height: 60px;
  background: var(--wa-green);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  z-index: 90;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.5);
  transition: all 0.25s var(--ease);
}
.float-wa::before {
  content: "";
  position: absolute; inset: -4px;
  border: 2px solid rgba(37, 211, 102, 0.4);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
.float-wa:hover { background: var(--wa-green-dark); transform: scale(1.08); }
.float-wa-label {
  position: absolute;
  right: 72px;
  top: 50%;
  transform: translateY(-50%) translateX(10px);
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: var(--radius);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s var(--ease);
}
.float-wa:hover .float-wa-label { opacity: 1; transform: translateY(-50%) translateX(0); }

/* ---------- Back to top ---------- */
.back-top {
  position: fixed;
  bottom: 100px; right: 30px;
  width: 46px; height: 46px;
  background: var(--ink);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  z-index: 89;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s var(--ease);
}
.back-top.show { opacity: 1; pointer-events: auto; }
.back-top:hover { background: var(--brand-red); transform: translateY(-3px); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.7s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: 1fr; gap: 28px; max-width: 480px; margin: 0 auto; }
  .spec-cards { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .features-list { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .pd-grid { grid-template-columns: 1fr; gap: 36px; }
  .cta-box { grid-template-columns: 1fr; }
  .cta-visual { min-height: 220px; }
  .cta-content { padding: 44px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .video-features { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .container { padding: 0 18px; }
  .topbar { display: none; }
  .main-nav {
    position: fixed;
    top: 76px; right: 0;
    width: 280px;
    height: calc(100vh - 76px);
    background: rgba(14, 20, 24, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    flex-direction: column;
    align-items: stretch;
    padding: 24px 18px;
    gap: 6px;
    transform: translateX(100%);
    transition: transform 0.3s var(--ease);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.4);
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    overflow-y: auto;
  }
  .main-nav.open { transform: translateX(0); }
  .nav-link { padding: 14px 16px; border-radius: var(--radius); }
  .nav-link::after { display: none; }
  .nav-link:hover, .nav-link.active { background: rgba(255, 255, 255, 0.08); color: #fff; }
  .nav-cta { margin: 8px 0 0; text-align: center; }
  .menu-toggle { display: flex; z-index: 200; }

  .hero { min-height: auto; padding: 60px 0; }
  .hero-content { padding: 40px 18px; }
  .hero-stats { gap: 28px; }
  .hero-stats strong { font-size: 30px; }

  .car-caption { padding: 28px 24px; }
  .car-caption h3 { font-size: 20px; }
  .car-arrow { width: 42px; height: 42px; }
  .car-prev { left: 10px; }
  .car-next { right: 10px; }

  .video-play { width: 64px; height: 64px; }
  .cta-content { padding: 32px 24px; }
  .cta-content h2 { font-size: 26px; }

  .why-num { font-size: 48px; }

  .tab-btn { padding: 12px 14px; font-size: 13px; }
  .spec-cards { grid-template-columns: 1fr 1fr; }
  .spec-card-value { font-size: 22px; }
  .comp-bar { grid-template-columns: 36px 1fr 60px; gap: 10px; }
  .product-body { padding: 22px 20px 24px; }
  .product-body h3 { font-size: 19px; }
  .product-actions { flex-direction: column; }
  .cert-grid { grid-template-columns: 1fr 1fr; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom .container { flex-direction: column; text-align: center; }

  .float-wa { width: 54px; height: 54px; bottom: 20px; right: 20px; }
  .back-top { bottom: 84px; right: 22px; width: 42px; height: 42px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .pd-actions { flex-direction: column; }
  .hero-stats { gap: 22px; }
  .hero-stats > div { flex: 1 0 40%; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ============================================
   Privacy Policy Page
   ============================================ */

/* Page Hero */
.page-hero {
  position: relative;
  min-height: 52vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  padding: 80px 0 60px;
}
.page-hero-bg {
  position: absolute; inset: 0;
  background-image: url('images/privacy.jpg');
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroZoom 20s ease-in-out infinite alternate;
}
.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  padding: 60px 24px;
}
.page-hero-title {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.4);
}
.page-hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 20px;
  max-width: 680px;
}
.page-hero-updated {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 30px;
  display: inline-block;
  backdrop-filter: blur(4px);
}

/* Policy Section */
.policy-section { background: var(--bg-soft); padding: 96px 0; }
.policy-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 56px;
  align-items: start;
}

/* Sticky TOC */
.policy-toc {
  position: sticky;
  top: 100px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  box-shadow: var(--shadow-sm);
}
.policy-toc h3 {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--brand-red);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.policy-toc ul { display: flex; flex-direction: column; gap: 2px; }
.policy-toc a {
  display: block;
  padding: 9px 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--body);
  border-radius: var(--radius);
  transition: all 0.2s var(--ease);
}
.policy-toc a:hover {
  background: var(--bg-soft);
  color: var(--brand-red);
}
.policy-toc a.active {
  background: rgba(207, 31, 31, 0.08);
  color: var(--brand-red);
  font-weight: 700;
}

/* Policy Body */
.policy-body {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 48px 52px;
  box-shadow: var(--shadow-sm);
}
.policy-block {
  padding-bottom: 36px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: 100px;
}
.policy-block:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}
.policy-block h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 900;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.policy-block h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  margin-top: 24px;
  margin-bottom: 10px;
}
.policy-block p {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--body);
  margin-bottom: 14px;
}
.policy-block p strong { color: var(--ink); font-weight: 700; }
.policy-list {
  margin: 12px 0 18px;
  padding-left: 22px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.policy-list li {
  position: relative;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--body);
  padding-left: 4px;
}
.policy-list li::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-red);
}
.policy-list li strong { color: var(--ink); font-weight: 700; }

/* Contact card inside policy */
.policy-contact-card {
  background: var(--bg-soft);
  border-left: 4px solid var(--brand-red);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin: 20px 0 28px;
}
.policy-contact-card p {
  margin-bottom: 8px;
  font-size: 15px;
}
.policy-contact-card p:last-child { margin-bottom: 0; }
.policy-contact-card a {
  color: var(--brand-red);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease);
}
.policy-contact-card a:hover { border-color: var(--brand-red); }

/* Policy page responsive */
@media (max-width: 1024px) {
  .policy-layout { grid-template-columns: 220px 1fr; gap: 36px; }
  .policy-body { padding: 40px 36px; }
}
@media (max-width: 768px) {
  .page-hero { min-height: auto; padding: 60px 0 40px; }
  .page-hero-content { padding: 32px 18px; }
  .policy-section { padding: 60px 0; }
  .policy-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .policy-toc {
    position: static;
    max-height: 240px;
    overflow-y: auto;
  }
  .policy-body { padding: 28px 22px; }
}
@media (max-width: 480px) {
  .policy-body { padding: 24px 18px; }
  .policy-block h2 { font-size: 21px; }
}