:root {
  --ink: #0f1722;
  --muted: #51606b;
  --line: #d6dde3;
  --paper: #f4f8f7;
  --white: #ffffff;

  --jata-green: #2c8b4f;
  --jata-deep: #175c33;
  --jata-light: #e7f4eb;

  --huadian-blue: #0b4d8b;
  --huadian-deep: #09355f;
  --huadian-light: #e7eff7;

  --bridge-teal: #17797b;
  --bridge-gold: #d0b46b;

  --shadow: 0 22px 60px rgba(15, 23, 34, 0.14);
}

@font-face {
  font-family: 'Cormorant Garamond';
  src: url('./assets/fonts/cormorant-garamond-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* Preloader — curtain reveal */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  pointer-events: none;
}
.preloader-curtain {
  position: absolute;
  top: 0; bottom: 0;
  width: 50vw;
  background: var(--ink);
  transition: transform 0.9s cubic-bezier(0.83, 0, 0.17, 1);
}
.curtain-left  { left: 0;  }
.curtain-right { right: 0; }
.preloader-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
}
.preloader-logo { width: 160px; }
.preloader-spinner {
  width: 28px; height: 28px;
  border: 3px solid rgba(255,255,255,0.15);
  border-top-color: var(--jata-green);
  border-radius: 50%;
  animation: preloaderSpin 0.8s linear infinite;
}

#preloader.is-open .curtain-left  { transform: translateX(-100%); }
#preloader.is-open .curtain-right { transform: translateX(100%);  }
#preloader.is-open .preloader-center { opacity: 0; transition: opacity 0.3s ease; }
#preloader.is-done { opacity: 0; transition: opacity 0.3s ease; visibility: hidden; }

@keyframes preloaderSpin {
  to { transform: rotate(360deg); }
}

/* --------------------------------*/
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin-top: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 4px clamp(22px, 5vw, 76px);
  background: rgba(244, 248, 247, 0.9);
  border-bottom: 1px solid rgba(214, 221, 227, 0.55);
  backdrop-filter: blur(18px);
  transition: box-shadow 180ms ease, border-color 180ms ease;
}
.site-header.has-shadow {
  box-shadow: 0 8px 24px rgba(15, 23, 34, 0.08);
  border-bottom-color: rgba(214, 221, 227, 0.95);
}
.brand-group {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.brand-logo {
  display: block;
  width: auto;
  object-fit: contain;
}
.jata-logo { height: 44px; }
.huadian-logo { height: 84px; }
.site-nav { display: flex; align-items: center; gap: 30px; color: #28404e; font-size: 15px; }
.site-nav a { padding: 10px 0; border-bottom: 2px solid transparent; font-weight: 700; color: inherit; }
.site-nav a:visited { color: inherit; }
.site-nav a:hover { border-color: var(--jata-green); color: var(--jata-green); }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: var(--white); border-radius: 6px; cursor: pointer; }
.nav-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: var(--ink); }

.hero {
  padding: 0 clamp(34px, 3.6vw, 64px) clamp(36px, 4vw, 58px);
  color: var(--white);
}
.hero-stage {
  position: relative;
  height: clamp(650px, calc(100vh - 118px), 820px);
  min-height: 650px;
  overflow: hidden;
  background: var(--huadian-deep);
  border-radius: 0;
  box-shadow: 0 24px 60px rgba(15, 23, 34, 0.16);
  margin-top: -1px;
}
.hero-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(8, 27, 44, 0.9), rgba(9, 53, 95, 0.58) 43%, rgba(9, 53, 95, 0.04) 76%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.08), transparent 28%, transparent 68%, rgba(0, 0, 0, 0.66));
}
.hero-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(110deg, transparent 0%, rgba(255,255,255,0.12) 46%, transparent 58%);
  opacity: 0;
  transform: translateX(-26%);
  transition: opacity 280ms ease, transform 900ms ease;
  pointer-events: none;
}
.hero-stage:hover::after {
  opacity: 1;
  transform: translateX(22%);
}
.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-color: var(--huadian-deep);
  background-position: center top;
  background-size: cover;
  transition: opacity 260ms ease, transform 900ms ease, filter 900ms ease;
  will-change: transform;
  background-image: url('./assets/slide-1.jpg');
}
.hero-stage:hover .hero-image {
  filter: saturate(1.06) contrast(1.04);
  transform: scale(1.04);
}
.hero-image.is-changing {
  opacity: 0.32;
  transform: scale(1.02);
}
.hero-content {
  position: absolute;
  left: clamp(40px, 5vw, 96px);
  top: clamp(72px, 10vh, 112px);
  z-index: 2;
  width: min(820px, calc(100% - 80px));
  display: grid;
  gap: 0;
}
.hero-manufacturer {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding: 7px 16px 7px 7px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 999px;
  font-size: 12px;
  color: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
}
.hero-manufacturer .mfr-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 10px;
  font-weight: 900;
  color: #fff;
}
.hero-manufacturer .jata { background: linear-gradient(135deg, var(--jata-green), #47a96a); }
.hero-manufacturer .huadian { background: linear-gradient(135deg, var(--huadian-blue), #1674c3); }
.eyebrow {
  margin: 0 0 18px;
  color: var(--jata-green);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero .eyebrow { color: #d8eec9; }
.hero-title-main {
  margin-bottom: 8px;
  max-width: 820px;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-weight: 800;
  font-size: clamp(38px, 4.6vw, 54px);
  line-height: 1;
  letter-spacing: 0;
  color: #fff;
}
.hero-title-sub {
  display: block;
  margin-top: 18px;
  margin-bottom: 10px;
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.14em;
}
.hero-subtitle-cn {
  margin: 0 0 14px;
  max-width: 820px;
  color: rgba(255,255,255,0.88);
  font-size: clamp(18px, 1.8vw, 24px);
  font-weight: 600;
  line-height: 1.35;
}
h2 {
  margin-bottom: 18px;
  font-family: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-weight: 600;
  font-size: clamp(28px, 3.8vw, 50px);
  line-height: 1.1;
  letter-spacing: 0;
}
h3 {
  margin-bottom: 10px;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
}
/* Fixed 3x2 blocks — position never shifts. Same shape as original metric cards. */
.hero-blocks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 820px;
}
.hero-block {
  min-height: 104px;
  padding: 18px 18px 16px;
  background: rgba(4, 17, 27, 0.36);
  border-left: 1px solid rgba(255,255,255,0.18);
  border-radius: 0;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: transform 180ms ease;
}
.hero-block:hover {
  transform: translateY(-4px);
}
.hero-block-label {
  display: block;
  color: rgba(255,255,255,0.65);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.hero-block-text {
  display: block;
  color: rgba(255,255,255,0.9);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
}
.hero-block-metric strong {
  display: block;
  margin-bottom: 8px;
  color: #f4faf1;
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0;
}
.hero-block-metric span {
  display: block;
  color: rgba(255,255,255,0.74);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.hero-body-text {
  max-width: 780px;
  color: rgba(255,255,255,0.72);
  font-size: 13px;
  line-height: 1.6;
  margin: 0 0 10px;
}
.hero-features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 820px;
  margin: 14px 0;
}
.hero-feature {
  padding: 14px 16px;
  background: rgba(4, 17, 27, 0.36);
  border-left: 1px solid rgba(255,255,255,0.18);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 72px;
}
.hero-feature-label {
  display: block;
  color: rgba(255,255,255,0.65);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.hero-feature-text {
  display: block;
  color: rgba(255,255,255,0.88);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
}
.hero-cta {
  margin-top: 16px;
}

/* ── Slide 2 (Why Choose Us) split layout ── */
.hero-subtitle-why {
  margin: 18px 0 24px;
  max-width: 820px;
  color: rgba(255,255,255,0.95);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.35;
}
.hero-why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  max-width: 820px;
  margin-top: 20px;
}
.hero-why-card {
  padding: 18px 16px;
  background: rgba(4, 17, 27, 0.42);
  border-left: 2px solid rgba(44,139,79,0.5);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 100px;
  transition: transform 180ms ease;
}
.hero-why-card:hover {
  transform: translateY(-4px);
}
.hero-why-label {
  display: block;
  color: #a3d9b1;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}
.hero-why-text {
  display: block;
  color: rgba(255,255,255,0.9);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.5;
}
.hero-cta-why {
  margin-top: 24px;
  margin-bottom: 24px;
}
/* ── Slide 3 (Data Center) overrides ── */
.hero-content[data-hero-index="3"] .hero-title-main {
  white-space: nowrap;
  font-size: 56px;
  font-weight: 700;
}
.hero-subtitle-dc {
  margin: 0 0 20px;
  color: rgba(255,255,255,0.95);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.35;
  white-space: nowrap;
}
.hero-dc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  max-width: 600px;
  margin-bottom: 20px;
}
.hero-dc-card {
  min-height: 110px;
  padding: 20px 18px;
  background: rgba(20,35,55,0.65);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 6px;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: transform 180ms ease;
}
.hero-dc-card:hover {
  transform: translateY(-4px);
}
.hero-dc-label {
  display: block;
  color: #a3d9b1;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.hero-dc-text {
  display: block;
  color: rgba(255,255,255,0.88);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
}
.hero-cta-dc {
  margin-top: 22px;
}
/* ── Slide 4 (Multi-Industry) overrides ── */
.hero-subtitle-app {
  margin: 24px 0 24px;
  max-width: 780px;
  color: rgba(255,255,255,0.95);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.35;
  white-space: nowrap;
}
.hero-content[data-hero-index="4"] .hero-body-text {
  font-size: 16px;
  line-height: 1.7;
  max-width: 780px;
  color: rgba(255,255,255,0.78);
  margin: 24px 0;
}
.hero-tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 780px;
  margin-bottom: 18px;
}
.hero-tag {
  display: inline-block;
  padding: 12px 24px;
  background: rgba(20,35,55,0.55);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  color: rgba(255,255,255,0.88);
  font-size: 15px;
  font-weight: 600;
  transition: all 180ms ease;
}
.hero-tag:hover {
  background: rgba(100,160,220,0.25);
  border-color: rgba(100,160,220,0.5);
  color: #b8d4f0;
  transform: translateY(-2px);
}
.hero-emphasis {
  max-width: 780px;
  color: #ffffff;
  font-size: 16px;
  font-style: italic;
  margin: 0 0 20px;
  line-height: 1.7;
}
.hero-cta-app {
  margin-top: 4px;
}
/* ── Slide 1 (Technology Heritage) overrides ── */
.hero-content[data-hero-index="1"] {
  line-height: 1.5;
}
.hero-content[data-hero-index="1"] .hero-title-sub {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.25;
  margin-top: 12px;
}
/* Dark overlay for slide 1 background */
.hero-stage.slide-overlay::before {
  z-index: 1;
}
.hero-stage.slide-overlay .hero-image {
  filter: brightness(0.8);
}
.hero-stage.slide-overlay .hero-content {
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.hero-subtitle-tech {
  margin: 12px 0 16px;
  max-width: 900px;
  color: rgba(255,255,255,0.92);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.6;
  white-space: nowrap;
}
.hero-tech-badge {
  display: inline-block;
  margin: 4px 0 14px;
  padding: 6px 14px;
  border: 1px solid rgba(44,139,79,0.6);
  border-radius: 4px;
  color: #a3d9b1;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.hero-content[data-hero-index="1"] .hero-body-text {
  font-size: 18px;
  line-height: 1.8;
  max-width: 860px;
  color: #ffffff;
  margin: 0 0 12px;
  white-space: nowrap;
}
.hero-features-tech {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 720px;
  margin: 16px 0;
}
.hero-feature-tech {
  padding: 22px 20px;
  background: rgba(4, 17, 27, 0.40);
  border-left: 2px solid rgba(44,139,79,0.5);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 100px;
  transition: transform 180ms ease;
}
.hero-feature-tech:hover {
  transform: translateY(-4px);
}
.hero-feature-tech .hero-feature-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #a3d9b1;
  margin-bottom: 8px;
}
.hero-feature-tech .hero-feature-text {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
  color: rgba(255,255,255,0.85);
}
.hero-cta-tech {
  margin-top: 32px;
}
.hero-partner-line {
  margin: 8px 0 12px;
  max-width: 820px;
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.02em;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
  font-family: inherit;
}
.btn.primary { background: linear-gradient(135deg, var(--jata-green), #4aa468); color: var(--white); }
.btn.primary:hover { background: linear-gradient(135deg, #258047, #3d965e); }
.btn.secondary { border-color: rgba(255,255,255,0.62); color: var(--white); }
.btn.secondary:hover { background: rgba(255,255,255,0.08); }

.hero-tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0;
  background: transparent;
  border: 0;
}
.hero-tabs-overlay {
  position: absolute;
  left: 0;
  right: 0;
  width: 100%;
  bottom: 0;
  z-index: 3;
  overflow: hidden;
  background: rgba(4, 17, 27, 0.34);
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(18px);
}
.hero-tab {
  position: relative;
  min-height: 76px;
  padding: 14px clamp(14px, 1.4vw, 22px) 12px;
  border: 0;
  border-right: 1px solid rgba(255,255,255,0.16);
  background: transparent;
  color: var(--white);
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease;
}
.hero-tab:last-child { border-right: 0; }
.hero-tab::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: transparent;
}
.hero-tab span {
  display: block;
  margin-top: 6px;
  color: rgba(255,255,255,0.55);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: 0;
}
.hero-tab strong {
  display: block;
  color: rgba(255,255,255,0.9);
  font-size: 14px;
  line-height: 1.18;
  font-weight: 800;
}
.hero-tab:hover,
.hero-tab.is-active {
  background: rgba(255,255,255,0.06);
}
.hero-tab.is-active::before { background: var(--jata-green); }
.hero-tab.is-active strong { color: #dff7d4; }
.hero-tab.is-active span { color: rgba(255,255,255,0.76); }

.section { padding: clamp(58px, 8vw, 104px) clamp(20px, 5vw, 72px); }
.split { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: clamp(30px, 6vw, 88px); align-items: start; }
.section-heading { max-width: 1100px; }
.section-heading.row { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.text-link { color: var(--jata-green); font-weight: 800; border-bottom: 2px solid currentColor; }
.service-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.service-card {
  min-height: 220px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(15, 23, 34, 0.06);
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(15, 23, 34, 0.12);
}
.service-card span { color: var(--bridge-teal); font-weight: 900; font-size: 22px; }
.service-card p { color: var(--muted); font-size: 17px; }

.proof-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.proof-list li {
  color: rgba(255,255,255,0.82);
  font-size: 18px;
  line-height: 1.5;
  padding-left: 20px;
  position: relative;
}
.proof-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--bridge-teal);
  font-weight: 700;
}
.factory-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 10px;
}
.factory-gallery .gallery-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.factory-gallery .gallery-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.12);
  transition: transform 180ms ease;
  cursor: pointer;
}
.factory-gallery .gallery-item img:hover {
  transform: scale(1.03);
}
.factory-gallery .gallery-item span {
  color: rgba(255,255,255,0.78);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
}
.factory-gallery .gallery-cert {
  grid-column: span 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.factory-gallery .gallery-cert img {
  width: 100%;
  height: 220px;
  object-fit: contain;
  background: rgba(255,255,255,0.05);
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.12);
}
.factory-gallery .gallery-cert span {
  color: rgba(255,255,255,0.85);
  font-size: 16px;
  font-weight: 600;
  text-align: center;
}
.cert-row, .cert-row img { display: none; }
.company-bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-block: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(231, 244, 235, 0.85), rgba(231, 239, 247, 0.9));
}
.company-bar-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 28px clamp(20px, 5vw, 48px);
}
.company-bar-item:first-child { border-right: 1px solid var(--line); }
.company-bar-dot {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 16px;
  flex-shrink: 0;
}
.company-bar-dot.jata { background: linear-gradient(135deg, var(--jata-light), #d4ecd9); color: var(--jata-deep); }
.company-bar-dot.huadian { background: linear-gradient(135deg, var(--huadian-light), #d8e6f3); color: var(--huadian-deep); }
.company-bar-item strong { display: block; font-size: 15px; margin-bottom: 2px; }
.company-bar-item span { font-size: 12px; color: var(--muted); }

.feature-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.6fr) minmax(500px, 1.4fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: clamp(58px, 8vw, 104px) clamp(24px, 6vw, 96px);
  background: linear-gradient(135deg, var(--huadian-deep), #0d5b99 54%, #11496f);
  color: var(--white);
}
.feature-band .eyebrow { color: #d8eec9; }
.feature-band p { color: rgba(255,255,255,0.82); font-size: 20px; max-width: 480px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 0; }
.stats div { padding: 24px; border: 1px solid rgba(255,255,255,0.16); border-radius: 8px; background: rgba(255,255,255,0.06); }
.stats dt { font-size: clamp(34px, 4vw, 54px); font-weight: 900; color: #d8eec9; }
.stats dd { margin: 0; color: rgba(255,255,255,0.8); }

/* ── Company & Capability — Video + Caption ── */
.video-row {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 32px;
  align-items: stretch;
  margin-bottom: 12px;
}
.video-caption {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 36px 28px;
  box-shadow: 0 12px 34px rgba(15, 23, 34, 0.06);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.video-hero {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background: #000;
  aspect-ratio: 16 / 9;
  min-height: 320px;
}
.video-hero video { display: block; width: 100%; height: 100%; object-fit: cover; }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.2);
  cursor: pointer;
  transition: opacity 200ms ease;
}
.video-play-btn::before {
  content: '\25B6';
  font-size: 64px;
  color: rgba(255,255,255,0.9);
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}
.video-hero.playing .video-play-btn { opacity: 0; pointer-events: none; }
.video-caption h3 { font-size: 20px; font-weight: 800; color: var(--ink); margin-bottom: 8px; }
.video-caption-text { font-size: 15px; color: var(--muted); line-height: 1.6; }

.news-band { padding: clamp(58px, 8vw, 92px) clamp(20px, 5vw, 72px); background: var(--white); border-block: 1px solid var(--line); }
.news-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.news-list a { display: grid; grid-template-columns: 120px 1fr; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line); font-size: clamp(18px, 2vw, 24px); font-weight: 800; }
.news-list time { color: var(--jata-green); }

.contact-section { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 72px); padding: clamp(58px, 8vw, 104px) clamp(20px, 5vw, 72px); align-items: start; }
.contact-section p { color: var(--muted); }
.contact-lead { font-size: 16px; line-height: 1.6; margin-bottom: 20px; }
.contact-process { margin: 20px 0; padding: 20px; background: var(--jata-light); border-radius: 6px; border-left: 3px solid var(--jata-green); }
.contact-process h4 { margin: 0 0 8px; font-size: 14px; font-weight: 700; color: var(--ink); }
.contact-process p { font-size: 13px; color: var(--muted); margin: 0 0 8px; }
.contact-process ul { margin: 8px 0; padding-left: 18px; font-size: 13px; color: var(--muted); line-height: 1.7; }
.contact-trust { font-size: 12px; color: var(--muted); font-style: italic; margin: 16px 0; }
.contact-addresses { display: grid; gap: 12px; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--line); }
.contact-addresses strong { display: block; font-size: 13px; color: var(--ink); margin-bottom: 4px; }
.contact-addresses span { font-size: 12px; color: var(--muted); line-height: 1.5; }
.contact-form { display: grid; gap: 14px; padding: 28px; background: var(--white); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); }
.form-title { margin: 0 0 4px; font-size: 18px; font-weight: 700; color: var(--ink); }
label { display: flex; flex-direction: column; gap: 6px; color: #314139; font-weight: 700; font-size: 13px; }
label > span { white-space: nowrap; }
.req { color: #c0392b; display: inline; }
input, textarea, select { width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 11px 13px; font: inherit; font-size: 14px; color: var(--ink); background: #fbfcfa; box-sizing: border-box; }
textarea { resize: vertical; }
select { appearance: auto; }
.form-fieldset { border: 1px solid var(--line); border-radius: 6px; padding: 14px; margin: 0; display: grid; gap: 12px; }
.form-fieldset legend { font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; padding: 0 6px; }
.contact-form .btn { width: 100%; border: 0; margin-top: 4px; }
.form-micro-text { font-size: 11px; color: var(--muted); text-align: center; margin: 0; }
.footer-logos { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.footer-logos .jata-logo { height: 36px; }
.footer-logos .huadian-logo { height: 60px; }

.site-footer {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(20px, 5vw, 72px);
  background: linear-gradient(135deg, var(--huadian-deep), #0a2a4f);
  color: var(--white);
}
.site-footer p { margin: 8px 0 0; color: rgba(255,255,255,0.68); font-size: 14px; }
.footer-links { display: flex; gap: 20px; color: rgba(255,255,255,0.8); font-size: 14px; }

@media (max-width: 920px) {
  .site-nav {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 78px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 14px; }
  .nav-toggle { display: block; }
  .hero-stage {
    height: auto;
    min-height: 740px;
  }
  .hero-content {
    position: relative;
    left: auto;
    top: auto;
    width: auto;
    padding: clamp(86px, 12vw, 120px) 34px 188px;
  }
  .hero-tabs {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }
  .hero-tabs::-webkit-scrollbar {
    display: none;
  }
  .hero-tabs-overlay {
    left: 0;
    right: 0;
    width: 100%;
    bottom: 0;
  }
  .hero-tab {
    flex: 0 0 230px;
    min-height: 96px;
    border-right: 1px solid rgba(255,255,255,0.14);
    border-bottom: 0;
    scroll-snap-align: start;
  }
  .split, .feature-band, .contact-section { grid-template-columns: 1fr; }
  .company-bar { grid-template-columns: 1fr; }
  .company-bar-item:first-child { border-right: 0; border-bottom: 1px solid var(--line); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .insight-grid { grid-template-columns: 1fr; }
  .insight-card.featured { grid-row: auto; }
  .insight-card.featured img { height: 280px; }
}

@media (max-width: 620px) {
  .site-header { padding: 6px 18px; }
  .jata-logo { height: 34px; }
  .huadian-logo { height: 40px; }
  h1 { font-size: 40px; line-height: 1.02; }
  h2 { font-size: 32px; }
  .hero { padding: 0 14px 36px; }
  .hero-stage {
    min-height: 780px;
  }
  .hero-content {
    padding: 86px 22px 174px;
  }
  .hero-copy { font-size: 15px; }
  .hero-metrics { grid-template-columns: 1fr; }
  .hero-business-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .metric-card {
    min-height: 88px;
    padding: 16px 16px 14px;
  }
  .metric-card strong {
    font-size: 22px;
  }
  .metric-card span {
    font-size: 11px;
  }
  .hero-tabs { margin: 0; }
  .hero-tabs-overlay {
    left: 0;
    right: 0;
    width: 100%;
    bottom: 0;
  }
  .hero-tab {
    flex-basis: 198px;
    min-height: 70px;
    padding: 12px 14px 10px;
  }
  .hero-tab span {
    margin-top: 4px;
    font-size: 10px;
  }
  .hero-actions .btn { width: 100%; }
  .service-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .section-heading.row { display: block; }
  .news-list a { grid-template-columns: 1fr; gap: 8px; }
  .contact-form { padding: 20px; }
  .site-footer { display: grid; }
  .footer-links { flex-wrap: wrap; }
}

.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: rgba(15,23,34,0.92);
  color: rgba(255,255,255,0.78);
  padding: 16px 28px;
  border-radius: 8px;
  font-size: 14px;
  text-align: center;
  line-height: 1.5;
  z-index: 9999;
  opacity: 0;
  transition: all 300ms ease;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.toast.toast-error { background: #b5302a; }
.toast.toast-show { opacity: 1; transform: translateX(-50%) translateY(0); }

input::placeholder, textarea::placeholder { color: #c0c8d0; }