/* ============ APEX TRAILER — Premium Industrial Theme ============ */
:root {
  --bg-dark: #0a0e14;
  --bg-panel: #10161f;
  --bg-panel-2: #151d28;
  --line: rgba(255, 255, 255, 0.08);
  --accent: #e8a83a;
  --accent-dark: #c88f22;
  --text: #eef2f7;
  --muted: #98a4b3;
  --muted-2: #6d7987;
  --font-head: "Barlow Condensed", sans-serif;
  --font-body: "Inter", sans-serif;
  --container: 1240px;
  --radius: 14px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Typography ---------- */
h1, h2, h3, .head { font-family: var(--font-head); text-transform: uppercase; letter-spacing: 0.02em; line-height: 1.08; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--accent);
}

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(34px, 4.6vw, 54px); font-weight: 700; margin-bottom: 16px; }
.section-head p { color: var(--muted); font-size: 17px; }
.section-head.light-on-dark { margin-left: 0; }

.section { padding: 110px 0; position: relative; }
.section.tint { background: var(--bg-panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.accent { color: var(--accent); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 32px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 6px;
  transition: all 0.25s ease;
  cursor: pointer;
  border: 1px solid transparent;
  font-family: var(--font-body);
}
.btn-primary { background: var(--accent); color: #14100a; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(232, 168, 58, 0.25); }
.btn-ghost { border-color: rgba(255, 255, 255, 0.35); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-dark { background: #1a2330; color: var(--text); }
.btn-dark:hover { background: #243040; }

/* ---------- Top bar ---------- */
.topbar {
  background: #060a0f;
  border-bottom: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--muted);
  position: relative;
  z-index: 60;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar span strong { color: var(--text); font-weight: 600; }
.topbar .t-right { display: flex; gap: 22px; }
.topbar a:hover { color: var(--accent); }

/* ---------- Header / Nav ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 20, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: all 0.3s ease;
}
.header.scrolled { background: rgba(8, 11, 16, 0.96); box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 78px; }

.logo { display: flex; align-items: center; gap: 13px; }
.logo svg { width: 46px; height: 46px; flex-shrink: 0; }
.logo-text { line-height: 1; }
.logo-text .name { font-family: var(--font-head); font-size: 27px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.logo-text .name em { color: var(--accent); font-style: normal; }
.logo-text .tag { font-size: 9.5px; letter-spacing: 0.34em; color: var(--muted); text-transform: uppercase; margin-top: 4px; }

.nav { display: flex; align-items: center; gap: 34px; }
.nav a { font-size: 13.5px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: #cfd7e1; position: relative; padding: 6px 0; transition: color 0.2s; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--accent); transition: width 0.25s; }
.nav a:hover { color: #fff; }
.nav a:hover::after { width: 100%; }
.nav .nav-cta { margin-left: 8px; }

.hamburger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { display: block; width: 26px; height: 2px; background: var(--text); transition: 0.3s; }

/* ---------- Hero ---------- */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  background: url("../images/hero-fleet.jpg") center 30% / cover no-repeat;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(7, 10, 15, 0.92) 0%, rgba(7, 10, 15, 0.72) 45%, rgba(7, 10, 15, 0.25) 100%),
    linear-gradient(0deg, var(--bg-dark) 0%, transparent 22%);
}
.hero-content { max-width: 780px; padding: 140px 0 120px; }
.hero h1 { font-size: clamp(46px, 6.4vw, 84px); font-weight: 700; margin-bottom: 26px; text-shadow: 0 4px 40px rgba(0,0,0,0.5); }
.hero h1 .accent { display: inline; }
.hero p.lead { font-size: 19px; color: #c3ccd8; max-width: 620px; margin-bottom: 40px; }
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }

.hero-stats {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  background: rgba(6, 9, 14, 0.78);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
}
.hero-stats .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 26px;
  padding-bottom: 26px;
}
.stat { text-align: left; border-left: 2px solid var(--accent); padding-left: 20px; }
.stat .num { font-family: var(--font-head); font-size: 40px; font-weight: 700; color: #fff; line-height: 1; }
.stat .num small { font-size: 22px; color: var(--accent); }
.stat .label { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-top: 7px; }

/* ---------- Certifications strip ---------- */
.certs { background: #070b10; border-bottom: 1px solid var(--line); padding: 30px 0; }
.certs .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 26px; }
.cert-item { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.75; transition: 0.25s; }
.cert-item:hover { opacity: 1; color: var(--text); }
.cert-item svg { width: 30px; height: 30px; color: var(--accent); }

/* ---------- Products ---------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.product-card {
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s;
  position: relative;
}
.product-card:hover { transform: translateY(-8px); border-color: rgba(232, 168, 58, 0.45); box-shadow: 0 26px 60px rgba(0, 0, 0, 0.5); }
.product-card.feature { grid-column: span 2; }
.product-media { position: relative; aspect-ratio: 16/10; overflow: hidden; }
.product-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.product-card:hover .product-media img { transform: scale(1.06); }
.product-media .cat-badge {
  position: absolute;
  top: 16px; left: 16px;
  background: rgba(6, 9, 14, 0.85);
  border: 1px solid rgba(232, 168, 58, 0.5);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 7px 14px;
  border-radius: 4px;
  backdrop-filter: blur(6px);
}
.product-body { padding: 26px 28px 28px; }
.product-body h3 { font-size: 26px; font-weight: 700; margin-bottom: 10px; }
.product-body p { color: var(--muted); font-size: 14.5px; margin-bottom: 20px; min-height: 44px; }
.spec-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.spec-chip {
  font-size: 11.5px;
  font-weight: 600;
  color: #c8d2de;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  padding: 5px 12px;
  border-radius: 100px;
  letter-spacing: 0.04em;
}
.product-link { color: var(--accent); font-size: 12.5px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; display: inline-flex; align-items: center; gap: 8px; }
.product-link svg { transition: transform 0.25s; }
.product-card:hover .product-link svg { transform: translateX(5px); }

/* ---------- Why APEX ---------- */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature-card {
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
  transition: 0.3s;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}
.feature-card:hover { transform: translateY(-5px); border-color: rgba(232, 168, 58, 0.35); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 58px; height: 58px;
  border-radius: 12px;
  background: rgba(232, 168, 58, 0.1);
  border: 1px solid rgba(232, 168, 58, 0.3);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
}
.feature-icon svg { width: 28px; height: 28px; color: var(--accent); }
.feature-card h3 { font-size: 21px; margin-bottom: 10px; }
.feature-card p { color: var(--muted); font-size: 14.5px; }

/* ---------- Manufacturing ---------- */
.mfg-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 60px; align-items: center; }
.mfg-media { position: relative; }
.mfg-media img { border-radius: var(--radius); width: 100%; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55); }
.mfg-media::after {
  content: "";
  position: absolute;
  inset: 22px -22px -22px 22px;
  border: 1px solid rgba(232, 168, 58, 0.35);
  border-radius: var(--radius);
  z-index: -1;
}
.mfg-numbers { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 34px; }
.mfg-num {
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
}
.mfg-num .n { font-family: var(--font-head); font-size: 32px; font-weight: 700; color: var(--accent); line-height: 1.1; }
.mfg-num .t { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }

.process { margin-top: 80px; }
.process-track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  counter-reset: step;
}
.process-step { position: relative; padding: 26px 18px; background: var(--bg-panel-2); border: 1px solid var(--line); border-radius: 10px; text-align: center; }
.process-step .idx {
  counter-increment: step;
  width: 40px; height: 40px;
  margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(232, 168, 58, 0.12);
  border: 1px solid rgba(232, 168, 58, 0.4);
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
}
.process-step .idx::before { content: "0" counter(step); }
.process-step h4 { font-size: 14px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 6px; }
.process-step p { font-size: 12.5px; color: var(--muted-2); line-height: 1.5; }

/* ---------- Global Markets ---------- */
.global-band {
  background: linear-gradient(rgba(8, 11, 16, 0.88), rgba(8, 11, 16, 0.94)), url("../images/port-shipping.jpg") center / cover fixed no-repeat;
}
.regions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.region-card { background: rgba(16, 22, 31, 0.85); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 32px; backdrop-filter: blur(8px); transition: 0.3s; }
.region-card:hover { border-color: rgba(232, 168, 58, 0.4); transform: translateY(-5px); }
.region-card .flag { font-size: 12px; font-weight: 700; letter-spacing: 0.24em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; display: block; }
.region-card h3 { font-size: 26px; margin-bottom: 18px; }
.region-card ul { display: flex; flex-wrap: wrap; gap: 8px; }
.region-card li {
  font-size: 12.5px;
  color: #c8d2de;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  padding: 6px 13px;
  border-radius: 100px;
}
.region-card .region-note { margin-top: 20px; font-size: 13px; color: var(--muted-2); }

/* ---------- Testimonials ---------- */
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.testi-card {
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  transition: 0.3s;
}
.testi-card:hover { transform: translateY(-5px); border-color: rgba(232, 168, 58, 0.35); }
.testi-card .quote-mark { font-family: var(--font-head); font-size: 64px; line-height: 0.7; color: var(--accent); opacity: 0.55; margin-bottom: 18px; }
.testi-card p { color: #c3ccd8; font-size: 15px; flex: 1; }
.testi-card .who { margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line); }
.testi-card .who .nm { font-weight: 700; font-size: 14px; }
.testi-card .who .rl { font-size: 12.5px; color: var(--muted-2); margin-top: 3px; }
.stars { color: var(--accent); letter-spacing: 3px; font-size: 13px; margin-bottom: 14px; }

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; background: var(--bg-panel-2); margin-bottom: 14px; overflow: hidden; transition: border-color 0.3s; }
.faq-item.open { border-color: rgba(232, 168, 58, 0.4); }
.faq-q {
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16.5px;
  font-weight: 600;
  text-align: left;
  padding: 22px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 20px;
}
.faq-q .pm { flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%; border: 1px solid rgba(232, 168, 58, 0.5); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 18px; transition: 0.3s; }
.faq-item.open .pm { transform: rotate(45deg); background: rgba(232, 168, 58, 0.15); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-a-inner { padding: 0 28px 24px; color: var(--muted); font-size: 15px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; }
.contact-info h2 { font-size: clamp(32px, 4vw, 48px); margin-bottom: 18px; }
.contact-info > p { color: var(--muted); margin-bottom: 36px; max-width: 460px; }
.contact-item { display: flex; gap: 18px; margin-bottom: 26px; align-items: flex-start; }
.contact-item .ic { width: 50px; height: 50px; flex-shrink: 0; border-radius: 12px; background: rgba(232, 168, 58, 0.1); border: 1px solid rgba(232, 168, 58, 0.3); display: flex; align-items: center; justify-content: center; }
.contact-item .ic svg { width: 23px; height: 23px; color: var(--accent); }
.contact-item .v { font-weight: 600; font-size: 15.5px; }
.contact-item .k { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 3px; }

.contact-form {
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 42px 40px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 14px 16px;
  outline: none;
  transition: border-color 0.25s, background 0.25s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); background: rgba(255, 255, 255, 0.06); }
.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2398a4b3' stroke-width='2' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; }
.form-group select option { background: #151d28; }
.form-note { font-size: 12.5px; color: var(--muted-2); margin-top: 16px; }
.form-success {
  display: none;
  text-align: center;
  padding: 40px 10px;
}
.form-success.show { display: block; }
.form-success .tick { width: 70px; height: 70px; margin: 0 auto 20px; border-radius: 50%; background: rgba(232, 168, 58, 0.12); border: 1px solid rgba(232, 168, 58, 0.5); display: flex; align-items: center; justify-content: center; font-size: 32px; color: var(--accent); }
.form-success h3 { font-size: 26px; margin-bottom: 10px; }
.form-success p { color: var(--muted); font-size: 14.5px; }

/* ---------- Footer ---------- */
.footer { background: #060a0f; border-top: 1px solid var(--line); padding: 80px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 50px; padding-bottom: 60px; }
.footer .logo { margin-bottom: 20px; }
.footer .about { color: var(--muted-2); font-size: 14px; max-width: 320px; }
.footer h4 { font-size: 13px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text); margin-bottom: 22px; }
.footer ul li { margin-bottom: 11px; }
.footer ul a { color: var(--muted-2); font-size: 14px; transition: color 0.2s; }
.footer ul a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--line); padding: 24px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--muted-2); }
.footer-bottom .soc { display: flex; gap: 14px; }
.footer-bottom .soc a { width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; color: var(--muted); transition: 0.25s; }
.footer-bottom .soc a:hover { border-color: var(--accent); color: var(--accent); }
.footer-bottom .soc svg { width: 17px; height: 17px; }

.float-quote {
  position: fixed;
  right: 26px;
  bottom: 30px;
  z-index: 91;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 15px;
  border-radius: 999px;
  background: var(--accent);
  color: #101010;
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: .02em;
  text-decoration: none;
  box-shadow: 0 10px 26px rgba(0, 0, 0, .35);
  transition: transform .25s ease, opacity .25s ease, box-shadow .25s ease;
}
.float-quote:hover { transform: translateY(-2px); box-shadow: 0 16px 38px rgba(0, 0, 0, .45); }
.float-quote .fq-ico { font-size: 15px; line-height: 1; }
.float-quote.hide { opacity: 0; pointer-events: none; transform: translateY(16px); }
/* 尺寸三档（后台可选） */
.float-quote.fq-md { padding: 13px 20px; font-size: 14px; font-weight: 800; }
.float-quote.fq-md .fq-ico { font-size: 17px; }
.float-quote.fq-lg { padding: 15px 24px; font-size: 15.5px; font-weight: 800; }
.float-quote.fq-lg .fq-ico { font-size: 19px; }
@media (max-width: 520px) {
  .float-quote { right: 16px; bottom: 24px; padding: 8px 13px; font-size: 12px; }
  .float-quote.fq-md { padding: 11px 17px; font-size: 13px; }
  .float-quote.fq-lg { padding: 13px 20px; font-size: 14px; }
}

.back-top {
  position: fixed;
  right: 26px;
  bottom: 98px;
  z-index: 90;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: 0.3s;
}
.back-top.show { opacity: 1; pointer-events: auto; }
.back-top:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 6, 10, 0.82);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 30px;
}
.modal-overlay.show { display: flex; animation: fadeIn 0.25s ease; }
.modal {
  background: var(--bg-panel);
  border: 1px solid rgba(232, 168, 58, 0.25);
  border-radius: 18px;
  max-width: 980px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  position: relative;
  animation: slideUp 0.35s ease;
}
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  z-index: 5;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(6, 9, 14, 0.8);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
  transition: 0.25s;
}
.modal-close:hover { border-color: var(--accent); color: var(--accent); transform: rotate(90deg); }
.modal-media { aspect-ratio: 21/9; overflow: hidden; }
.modal-media img { width: 100%; height: 100%; object-fit: cover; }
.modal-body { padding: 36px 42px 42px; }
.modal-body h3 { font-size: 34px; margin-bottom: 8px; }
.modal-body .sub { color: var(--accent); font-size: 12px; letter-spacing: 0.24em; text-transform: uppercase; font-weight: 700; margin-bottom: 18px; }
.modal-body .desc { color: var(--muted); margin-bottom: 28px; }
.modal-specs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 30px; }
.modal-spec { background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line); border-radius: 10px; padding: 16px; text-align: center; }
.modal-spec .sv { font-family: var(--font-head); font-size: 22px; font-weight: 700; color: var(--accent); }
.modal-spec .sk { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-2); margin-top: 4px; }
.modal-feats { margin-bottom: 32px; }
.modal-feats li { display: flex; gap: 12px; align-items: flex-start; color: #c3ccd8; font-size: 14.5px; margin-bottom: 10px; }
.modal-feats li::before { content: "▸"; color: var(--accent); flex-shrink: 0; }
.modal-actions { display: flex; gap: 14px; flex-wrap: wrap; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid, .regions-grid, .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .mfg-grid { grid-template-columns: 1fr; gap: 50px; }
  .process-track { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 46px; }
  .topbar .t-right { display: none; }
}

@media (max-width: 820px) {
  .nav {
    position: fixed;
    top: 0; right: -100%;
    width: min(84vw, 380px);
    height: 100vh;
    background: #0a0e14;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 110px 36px;
    gap: 26px;
    transition: right 0.35s ease;
    border-left: 1px solid var(--line);
  }
  .nav.open { right: 0; }
  .hamburger { display: flex; z-index: 60; position: relative; }
  .hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .hamburger.active span:nth-child(2) { opacity: 0; }
  .hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero-stats .container { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat .num { font-size: 30px; }
  .product-card.feature { grid-column: span 1; }
  .modal-specs { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 80px 0; }
}

/* ---------- Language switcher ---------- */
.lang-switch { position: relative; margin-left: 6px; }
.lang-btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.1em;
  padding: 9px 14px; border-radius: 6px; cursor: pointer;
  transition: 0.25s;
}
.lang-btn:hover { border-color: var(--accent); color: var(--accent); }
.lang-menu {
  display: none;
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 158px;
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  border-radius: 10px; overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.55);
  z-index: 70;
}
.lang-menu.open { display: block; }
.lang-menu a { display: block; padding: 11px 16px; font-size: 13.5px; color: #cfd7e1; border-bottom: 1px solid var(--line); text-transform: none; }
.lang-menu a:last-child { border-bottom: none; }
.lang-menu a::after { display: none; }
.lang-menu a:hover, .lang-menu a.active { background: rgba(232, 168, 58, 0.1); color: var(--accent); }

/* ---------- RTL (Arabic) ---------- */
body.rtl .stat { border-left: none; border-right: 2px solid var(--accent); padding-left: 0; padding-right: 20px; }
body.rtl .eyebrow::before { order: 2; }
body.rtl .product-link svg { transform: scaleX(-1); }
body.rtl .product-card:hover .product-link svg { transform: scaleX(-1) translateX(-5px); }
body.rtl .hero::before {
  background:
    linear-gradient(270deg, rgba(7, 10, 15, 0.92) 0%, rgba(7, 10, 15, 0.72) 45%, rgba(7, 10, 15, 0.25) 100%),
    linear-gradient(0deg, var(--bg-dark) 0%, transparent 22%);
}
body.rtl .feature-card::before { transform-origin: right; }
body.rtl .mfg-media::after { inset: 22px 22px -22px -22px; }
body.rtl .modal-feats li::before { content: "◂"; }

/* ---------- Custom rich text block ---------- */
.rich-body p { margin-bottom: 14px; }
.rich-body li { margin-bottom: 8px; padding-inline-start: 18px; position: relative; }
.rich-body li::before { content: "▸"; color: var(--accent); position: absolute; inset-inline-start: 0; }
.rich-body a { color: var(--accent); text-decoration: underline; }
.rich-body h3 { font-family: var(--font-head); font-size: 22px; margin: 18px 0 8px; }
.rich-body strong { color: #fff; }

@media (max-width: 600px) {
  .products-grid, .features-grid, .regions-grid, .testi-grid, .form-row { grid-template-columns: 1fr; }
  .process-track { grid-template-columns: repeat(2, 1fr); }
  .hero { min-height: auto; flex-direction: column; justify-content: flex-start; }
  .hero-content { padding: 118px 0 46px; }
  .hero-stats { position: static; width: 100%; }
  .hero h1 { font-size: 44px; }
  .hero p.lead { font-size: 16.5px; }
  .hero-actions { flex-direction: column; gap: 14px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .certs .container { justify-content: flex-start; gap: 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .modal-body { padding: 28px 24px 32px; }
  .contact-form { padding: 30px 22px; }
}

/* ============================================================
   News / 资讯栏目（移动优先）
   ============================================================ */
.news-tabs {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 16px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.news-tabs::-webkit-scrollbar { display: none; }
.news-tab {
  flex: 0 0 auto;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-panel-2);
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: color .2s, background .2s, border-color .2s;
}
.news-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #101010;
  font-weight: 800;
}
.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
@media (min-width: 640px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .news-grid { grid-template-columns: repeat(3, 1fr); } }

.news-card {
  display: block;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: rgba(232, 168, 58, .18);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.news-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 14px 34px rgba(0, 0, 0, .35);
}
.news-card[style*="display: none"] { display: none !important; }
.news-media { aspect-ratio: 16 / 9; background: var(--bg-panel-2); }
.news-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.news-ph {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 34px; opacity: .45;
}
.news-body { padding: 16px 18px 18px; }
.news-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.news-tag {
  font-size: 11.5px;
  padding: 3px 11px;
  border-radius: 999px;
  background: rgba(232, 168, 58, .16);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
  font-weight: 800;
  letter-spacing: .05em;
}
.news-meta time { font-size: 12px; color: var(--muted); }
.news-body h3 { font-size: 17px; line-height: 1.45; margin-bottom: 8px; }
.news-body p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-more { font-size: 12.5px; color: var(--accent); font-weight: 800; letter-spacing: .03em; }
.news-empty {
  padding: 64px 20px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 14px;
  font-size: 15px;
}

/* 文章阅读层：手机全屏，桌面居中限宽 */
.news-overlay {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(4, 7, 12, .72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  display: none;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.news-overlay.open { display: block; }
.news-article {
  position: relative;
  width: 100%;
  min-height: 100%;
  margin: 0 auto;
  background: var(--bg);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  animation: naIn .28s ease;
}
@keyframes naIn { from { transform: translateY(26px); opacity: 0; } to { transform: none; opacity: 1; } }
@media (min-width: 780px) {
  .news-article { max-width: 760px; border-radius: 0 0 18px 18px; min-height: 0; }
}
.news-close {
  position: sticky;
  top: 14px;
  margin: 14px 14px -46px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
  cursor: pointer;
  z-index: 5;
}
.news-close:hover { color: var(--accent); border-color: var(--accent); }
.na-media { max-height: 420px; overflow: hidden; background: var(--bg-panel-2); }
.na-media img { width: 100%; object-fit: cover; display: block; }
.na-body { padding: 22px 20px 64px; max-width: 680px; margin: 0 auto; }
.na-body h2 { font-size: 22px; line-height: 1.4; margin: 12px 0 18px; }
.na-text { font-size: 15px; line-height: 1.9; color: var(--text, #d7dde6); }
.na-text p { margin-bottom: 14px; }
@media (min-width: 780px) { .na-body { padding: 26px 36px 72px; } .na-body h2 { font-size: 26px; } }

/* ============================================================
   顶部资讯分类条（logo 下方，一眼可见）
   ============================================================ */
.ch-bar-wrap {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, .02);
}
.ch-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 9px 2px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.ch-bar::-webkit-scrollbar { display: none; }
.ch-item {
  flex: 0 0 auto;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-panel-2);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  transition: color .2s, background .2s, border-color .2s;
}
.ch-item:hover { color: var(--text); border-color: var(--accent); }
.ch-item.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #101010;
  font-weight: 800;
}
@media (min-width: 900px) {
  .ch-bar { gap: 12px; padding: 11px 2px; }
  .ch-item { padding: 9px 20px; font-size: 14px; }
}