* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: Inter, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: radial-gradient(circle at center, #cdd5df 0%, #e4e9ef 55%, #f2f5f8 100%);
  min-height: 100vh;
  padding-bottom: 80px;
}

.site-navbar {
  background-color: #253140;
}

.site-brand-logo {
  height: 50px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  border-radius: 6px;
  background: #ffffff;
  padding: 4px 8px;
}

.container1 {
  position: relative;
  width: 100%;
  height: 520px;
  overflow: hidden;
}

.background-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
}

.container1-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  height: 100%;
  background: linear-gradient(135deg, rgba(14, 23, 34, 0.74), rgba(26, 40, 57, 0.45));
  padding: 0 20px;
}

.container1 .maintext {
  color: #f4f7fa;
  font-weight: 800;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.15;
  max-width: 900px;
}

.hero-subtext {
  margin-top: 10px;
  color: #d4dde7;
  font-size: 1.03rem;
  max-width: 720px;
  line-height: 1.6;
}

.button {
  margin-top: 24px;
  padding: 12px 32px;
  background-color: #2f4359;
  color: #ffffff;
  border-radius: 8px;
  text-decoration: none;
  letter-spacing: 0.5px;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.button:hover {
  background-color: #1f2f41;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(18, 31, 45, 0.35);
}

.section-header {
  text-align: center;
  margin-bottom: 28px;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.8rem);
  font-weight: 300;
  letter-spacing: 1.5px;
  color: #1e2b3a;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.header-line {
  width: 84px;
  height: 3px;
  background: linear-gradient(90deg, #3d556c, #212f40);
  margin: 0 auto;
}

.section-intro {
  text-align: center;
  font-size: 1.08rem;
  color: #2f3f50;
  max-width: 820px;
  margin: 0 auto 34px;
  line-height: 1.75;
}

.home-modern-section,
.industrial-visuals-section,
.steeltrans-anchor-nav,
.logistics-section {
  max-width: 1400px;
  margin: 80px auto;
  padding: 0 40px 120px;
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 30px;
}

.home-card {
  background: #ffffff;
  border: 1px solid rgba(74, 92, 112, 0.23);
  border-radius: 12px;
  box-shadow: 0 12px 36px rgba(35, 47, 61, 0.1);
  padding: 24px;
}

.home-card h3 {
  color: #1f2c3b;
  font-size: 1.35rem;
  margin-bottom: 10px;
}

.home-card p {
  color: #2f3e4f;
  line-height: 1.75;
  margin: 0;
}

.quick-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.quick-strip div {
  border-radius: 10px;
  background: linear-gradient(135deg, #e7edf4 0%, #d9e2ec 100%);
  border: 1px solid rgba(74, 92, 112, 0.24);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.quick-strip strong {
  color: #182635;
  font-size: 1.1rem;
}

.quick-strip span {
  color: #324252;
  font-size: 0.95rem;
}

.industrial-visuals-section {
  margin-top: 40px;
  margin-bottom: 20px;
  padding-bottom: 60px;
}

.industrial-visual-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}

.industrial-visual-card {
  background: linear-gradient(135deg, #f4f7fa 0%, #e7edf3 100%);
  border: 1px solid rgba(59, 78, 98, 0.24);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(18, 31, 44, 0.1);
  padding: 22px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.industrial-visual-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(18, 31, 44, 0.16);
}

.visual-icon {
  width: 100%;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  background: #dce4ec;
  border-radius: 10px;
}

.visual-icon svg {
  width: min(100%, 220px);
  height: auto;
}

.rotate-coil {
  transform-origin: 60px 60px;
  animation: rotateCoil 12s linear infinite;
}

.spin-wheel {
  animation: wheelSpin 2.1s linear infinite;
}

.pulse-line {
  animation: pulseLine 2s ease-in-out infinite;
}

.dash-route {
  stroke-dasharray: 8 10;
  animation: dashFlow 2.4s linear infinite;
}

.route-marker {
  animation: beaconPulse 1.6s ease-in-out infinite;
}

.rotate-needle {
  transform-origin: 60px 60px;
  animation: gaugeSweep 3.4s ease-in-out infinite;
}

.doc-slide {
  animation: documentShift 2.4s ease-in-out infinite;
}

.beacon-pulse {
  animation: beaconPulse 1.8s ease-in-out infinite;
}

.industrial-visual-card h3 {
  color: #1f2c3b;
  margin-bottom: 8px;
  font-size: 1.24rem;
}

.industrial-visual-card p {
  color: #2f3f4f;
  margin: 0;
  line-height: 1.68;
}

.partnership-section {
  max-width: 1400px;
  margin: 30px auto 80px;
  padding: 0 40px 120px;
}

.logo-collaboration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}

.logo-card {
  background: linear-gradient(135deg, #f7fafc 0%, #e8eff6 100%);
  border: 1px solid rgba(59, 78, 98, 0.2);
  border-radius: 12px;
  box-shadow: 0 10px 28px rgba(18, 31, 44, 0.12);
  padding: 22px;
  text-align: center;
}

.partner-logo {
  max-width: min(100%, 260px);
  height: 96px;
  object-fit: contain;
  margin-bottom: 14px;
}

.steel-logo {
  background: #ffffff;
  border-radius: 8px;
  padding: 8px;
  box-shadow: inset 0 0 0 1px rgba(56, 73, 92, 0.18);
}

.elpros-logo {
  filter: drop-shadow(0 8px 16px rgba(28, 41, 56, 0.18));
}

.logo-card h3 {
  color: #1f2c3b;
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.logo-card p {
  color: #304152;
  margin: 0;
  line-height: 1.68;
}

.anchor-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.anchor-links a {
  text-decoration: none;
  color: #ffffff;
  background: linear-gradient(135deg, #32495f, #1e2e3f);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(33, 47, 63, 0.25);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.anchor-links a:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(33, 47, 63, 0.35);
}

.logistics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.logistics-card {
  background: #ffffff;
  border: 1px solid rgba(74, 92, 112, 0.24);
  border-radius: 12px;
  box-shadow: 0 10px 32px rgba(35, 47, 61, 0.1);
  padding: 28px;
}

.logistics-card h3 {
  color: #1f2c3b;
  margin-bottom: 16px;
  font-size: 1.5rem;
}

.logistics-list,
.risk-list,
.maintenance-list,
.checklist {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.logistics-list li,
.risk-list li,
.maintenance-list li,
.checklist li {
  color: #2f3f50;
  line-height: 1.65;
}

.distribution-visual {
  margin-top: 34px;
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid rgba(74, 92, 112, 0.24);
  padding: 26px;
  box-shadow: 0 10px 32px rgba(35, 47, 61, 0.1);
}

.distribution-visual h3 {
  color: #1f2c3b;
  margin-bottom: 20px;
  font-size: 1.35rem;
}

.distribution-item {
  display: grid;
  grid-template-columns: 170px 1fr;
  align-items: center;
  gap: 18px;
  margin-bottom: 14px;
}

.distribution-item span {
  color: #2b3b4b;
  font-weight: 500;
}

.distribution-bar {
  background: #dde5ee;
  border-radius: 8px;
  overflow: hidden;
  height: 30px;
}

.distribution-bar span {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
  padding-right: 10px;
  color: #ffffff;
  background: linear-gradient(90deg, #445d74, #293b4f);
  font-weight: 700;
}

.route-main {
  font-weight: 600;
  color: #1f2c3b;
  margin-bottom: 8px;
}

.route-meta {
  color: #2f3f50;
  margin-bottom: 16px;
}

.route-card h4 {
  color: #31475d;
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.compliance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}

.compliance-item {
  background: #ffffff;
  border: 1px solid rgba(74, 92, 112, 0.24);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(35, 47, 61, 0.08);
}

.compliance-item h3 {
  color: #1f2c3b;
  font-size: 1.45rem;
  margin-bottom: 8px;
}

.compliance-item p {
  color: #2f3f50;
  margin: 0;
}

.compliance-note {
  margin-top: 20px;
  background: linear-gradient(135deg, #edf2f7, #dfe8f1);
  border-left: 4px solid #3a5268;
  border-radius: 8px;
  padding: 14px 18px;
  color: #273747;
}

.cost-card,
.maintenance-block {
  background: #ffffff;
  border: 1px solid rgba(74, 92, 112, 0.24);
  border-radius: 12px;
  box-shadow: 0 10px 32px rgba(35, 47, 61, 0.1);
  padding: 28px;
}

.cost-total-trips {
  color: #2f3f50;
  margin-bottom: 20px;
}

.cost-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cost-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #e8eff6;
  border-radius: 8px;
  padding: 10px 14px;
}

.cost-list li span {
  color: #2c3c4d;
}

.cost-list li strong {
  color: #1f2c3b;
}

.final-price {
  margin-top: 18px;
  background: linear-gradient(135deg, #2f4359, #1e2f41);
  color: #ffffff;
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 1.05rem;
}

.insurance-note {
  margin-top: 20px;
  background: #e8eff6;
  border-left: 4px solid #3a5268;
  border-radius: 8px;
  padding: 12px 14px;
  color: #2c3c4d;
}

.checklist li {
  position: relative;
  padding-left: 24px;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3f556c;
}

.emergency-section {
  width: 100%;
  margin: 90px 0;
  padding: 60px 40px 120px;
  background: linear-gradient(135deg, #fff0e7 0%, #f7d9c9 45%, #f4f8fc 100%);
  border-top: 5px solid #d26440;
  border-bottom: 5px solid #d26440;
}

.emergency-header {
  max-width: 1400px;
  margin: 0 auto 26px;
}

.emergency-header h2 {
  color: #8e3219;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.emergency-header p {
  color: #50352f;
  font-size: 1.05rem;
}

.emergency-flow,
.emergency-panels,
.emergency-subsections {
  max-width: 1400px;
  margin: 0 auto;
}

.emergency-flow {
  display: grid;
  grid-template-columns: repeat(6, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}

.emergency-step {
  border: 1px solid rgba(142, 50, 25, 0.35);
  background: #fff7f3;
  color: #6d2818;
  border-radius: 8px;
  padding: 12px 10px;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.emergency-step:hover,
.emergency-step.active {
  background: linear-gradient(135deg, #ef8864, #d26440);
  color: #ffffff;
  box-shadow: 0 10px 22px rgba(142, 50, 25, 0.25);
  transform: translateY(-2px);
}

.emergency-panels {
  margin-bottom: 24px;
}

.emergency-panel {
  display: none;
  background: #ffffff;
  border: 1px solid rgba(210, 100, 64, 0.35);
  border-radius: 12px;
  box-shadow: 0 12px 34px rgba(142, 50, 25, 0.12);
  padding: 24px;
}

.emergency-panel.active {
  display: block;
  animation: emergencyFade 0.3s ease;
}

.emergency-panel h3 {
  color: #8e3219;
  margin-bottom: 10px;
}

.emergency-panel p {
  color: #4f4542;
  line-height: 1.7;
}

.emergency-subsections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
}

.emergency-subcard {
  background: #fff7f3;
  border: 1px solid rgba(210, 100, 64, 0.3);
  border-radius: 12px;
  padding: 22px;
}

.emergency-subcard h3 {
  color: #8e3219;
  margin-bottom: 10px;
}

.emergency-subcard p,
.emergency-subcard li {
  color: #4f4542;
  line-height: 1.7;
}

.emergency-subcard ul {
  margin: 0;
  padding-left: 20px;
}

@keyframes emergencyFade {
  from {
    opacity: 0;
    transform: translateY(5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rotateCoil {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes wheelSpin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes pulseLine {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

@keyframes dashFlow {
  from {
    stroke-dashoffset: 0;
  }

  to {
    stroke-dashoffset: -36;
  }
}

@keyframes beaconPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.18);
    opacity: 0.65;
  }
}

@keyframes gaugeSweep {
  0% {
    transform: rotate(-30deg);
  }

  50% {
    transform: rotate(26deg);
  }

  100% {
    transform: rotate(-30deg);
  }
}

@keyframes documentShift {
  0%,
  100% {
    transform: translateX(0);
  }

  50% {
    transform: translateX(-5px);
  }
}

footer {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  background-color: #e2e8ee;
  text-align: center;
  padding: 10px;
}

footer a {
  color: #2f4359;
}

@media screen and (max-width: 768px) {
  .container1 {
    height: 430px;
  }

  .home-modern-section,
  .industrial-visuals-section,
  .partnership-section,
  .steeltrans-anchor-nav,
  .logistics-section {
    padding: 0 20px 100px;
    margin: 40px auto;
  }

  .industrial-visual-grid {
    grid-template-columns: 1fr;
  }

  .distribution-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .emergency-section {
    padding: 40px 20px 100px;
  }

  .emergency-flow {
    grid-template-columns: repeat(2, minmax(130px, 1fr));
  }
}

@media screen and (max-width: 480px) {
  .container1 {
    height: 390px;
  }

  .site-brand-logo {
    height: 42px;
    max-width: 150px;
  }

  .hero-subtext {
    font-size: 0.95rem;
  }

  footer {
    padding: 8px;
  }
}