:root {
  --bg: #f3f7fb;
  --bg-deep: #07111f;
  --surface: #ffffff;
  --ink: #0d1b2a;
  --muted: #5b6b7c;
  --line: rgba(13, 27, 42, 0.1);
  --cyan: #00c8e0;
  --cyan-deep: #009bb0;
  --navy: #0b2748;
  --navy-soft: #163a66;
  --glow: rgba(0, 200, 224, 0.35);
  --radius: 18px;
  --shadow: 0 18px 50px rgba(7, 17, 31, 0.1);
  --font-display: "Sora", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Sora", sans-serif;
  --container: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(0, 200, 224, 0.12), transparent 55%),
    radial-gradient(900px 500px at -10% 20%, rgba(11, 39, 72, 0.06), transparent 50%),
    var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(calc(100% - 2.5rem), var(--container));
  margin-inline: auto;
}

.section {
  padding: 6.5rem 0;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--cyan-deep);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-head {
  max-width: 640px;
  margin-bottom: 3rem;
}

.section-head h2,
.about-copy h2,
.contact-head h2,
.cta-inner h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.4vw, 2.75rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-desc {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), #35dff5 45%, var(--cyan-deep));
  color: #04202a;
  box-shadow: 0 10px 30px var(--glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(0, 200, 224, 0.45);
}

.btn-ghost {
  border-color: rgba(13, 27, 42, 0.18);
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  border-color: var(--cyan-deep);
  color: var(--cyan-deep);
  transform: translateY(-2px);
}

.progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  z-index: 100;
  background: linear-gradient(90deg, var(--cyan), var(--navy));
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(247, 251, 255, 0.82);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.5rem;
}

.brand-logo {
  width: 118px;
  height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.nav a {
  font-size: 0.95rem;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav a:hover,
.nav a.is-active {
  color: var(--ink);
}

.nav-cta {
  padding: 0.55rem 1rem;
  border-radius: 999px;
  background: var(--navy);
  color: #fff !important;
}

.nav-cta:hover {
  background: var(--navy-soft);
}

.menu-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 1.35rem;
  height: 2px;
  margin: 0.35rem auto;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding: 7rem 0 5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 39, 72, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 39, 72, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 70% 40%, black 20%, transparent 72%);
}

.hero-glow {
  position: absolute;
  width: 48vw;
  height: 48vw;
  right: -8vw;
  top: 8vh;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 200, 224, 0.28), transparent 68%);
  filter: blur(10px);
  animation: pulse 7s ease-in-out infinite;
}

.hero-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-lines .line {
  fill: none;
  stroke: rgba(11, 39, 72, 0.55);
  stroke-width: 2;
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
  animation: draw 2.4s ease forwards;
}

.line-2 {
  stroke: rgba(0, 200, 224, 0.55);
  animation-delay: 0.2s;
}

.line-3 {
  stroke: rgba(11, 39, 72, 0.28);
  animation-delay: 0.4s;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero-brand {
  width: min(280px, 62vw);
  height: auto;
  margin-bottom: 1.4rem;
  filter: drop-shadow(0 12px 30px rgba(0, 200, 224, 0.25));
  animation: rise 0.9s ease both;
}

.hero-title {
  margin: 0 0 0.8rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  animation: rise 0.9s ease 0.1s both;
}

.hero-subtitle {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  font-weight: 600;
  color: var(--navy);
  animation: rise 0.9s ease 0.18s both;
}

.hero-desc {
  margin: 0 0 1.8rem;
  max-width: 34rem;
  color: var(--muted);
  font-size: 1.05rem;
  animation: rise 0.9s ease 0.26s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2.2rem;
  animation: rise 0.9s ease 0.34s both;
}

.hero-pillars {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  padding: 0;
  margin: 0;
  list-style: none;
  animation: rise 0.9s ease 0.42s both;
}

.hero-pillars li {
  padding: 0.65rem 1rem;
  background: var(--navy);
  color: #fff;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.hero-badge {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1.5rem;
  margin: 0;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--cyan-deep);
  letter-spacing: 0.04em;
}

.about-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 3.5rem;
  align-items: center;
}

.contact {
  padding-top: 4rem;
}

.contact-panel {
  position: relative;
  padding: 2.75rem 3rem 2.5rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.72)),
    radial-gradient(520px 220px at 100% 0%, rgba(0, 200, 224, 0.1), transparent 65%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.contact-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan-deep) 45%, #e8873a 100%);
}

.contact-head {
  max-width: 36rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.contact-head h2 {
  margin: 0 0 0.65rem;
}

.contact-head p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.contact-body {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem 3.5rem;
  align-items: center;
}

.contact-qr {
  display: grid;
  justify-items: center;
  gap: 0.65rem;
  padding-left: 2.5rem;
  border-left: 1px solid var(--line);
}

.contact-qr img {
  width: 132px;
  height: 132px;
  object-fit: contain;
  opacity: 0.94;
  filter: contrast(1.05);
}

.contact-qr p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.about-visual {
  position: relative;
}

.about-visual img {
  width: 100%;
  height: min(560px, 72vh);
  object-fit: cover;
  border-radius: 0 2rem 0 2rem;
  box-shadow: var(--shadow);
}

.about-visual-accent {
  position: absolute;
  inset: auto -1rem -1rem auto;
  width: 42%;
  height: 42%;
  border: 2px solid var(--cyan);
  border-radius: 0 1.5rem 0 1.5rem;
  pointer-events: none;
}

.about-copy p {
  color: var(--muted);
  margin: 0 0 1rem;
}

.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.value {
  padding: 1rem 0 0;
  border-top: 2px solid var(--cyan);
}

.value strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.value span {
  color: var(--muted);
  font-size: 0.92rem;
}

.stats {
  padding: 0 0 2rem;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding: 1.6rem;
  background: linear-gradient(135deg, var(--navy), #123961 55%, #0d4a63);
  color: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stat {
  text-align: center;
  padding: 0.6rem;
}

.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--cyan);
  margin-bottom: 0.2rem;
}

.stat span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.92rem;
}

.product-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.filter {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter:hover,
.filter.is-active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.product {
  padding: 1.4rem 1.35rem 1.5rem;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(13, 27, 42, 0.08);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(7, 17, 31, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, opacity 0.25s ease;
}

.product:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 200, 224, 0.45);
  box-shadow: 0 18px 40px rgba(7, 17, 31, 0.1);
}

.product.is-hidden {
  display: none;
}

.product-tag {
  display: inline-block;
  margin-bottom: 0.8rem;
  color: var(--cyan-deep);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.product h3 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: 1.12rem;
  line-height: 1.35;
}

.product > p {
  margin: 0 0 0.9rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.product ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--ink);
  font-size: 0.92rem;
}

.product li + li {
  margin-top: 0.3rem;
}

.solutions {
  background:
    linear-gradient(180deg, transparent, rgba(0, 200, 224, 0.05) 30%, transparent),
    transparent;
}

.solution-list {
  display: grid;
  gap: 1.2rem;
}

.solution {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.8rem 0;
  border-top: 1px solid var(--line);
}

.solution:last-child {
  border-bottom: 1px solid var(--line);
}

.solution-index {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.solution-body h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
}

.solution-body p {
  margin: 0 0 1rem;
  color: var(--muted);
  max-width: 50rem;
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.solution-tags span {
  padding: 0.35rem 0.75rem;
  background: rgba(11, 39, 72, 0.06);
  color: var(--navy);
  font-size: 0.85rem;
}

.partner-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.partner-cloud span {
  min-width: 7.5rem;
  padding: 1rem 1.2rem;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  font-family: var(--font-display);
  font-weight: 600;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.partner-cloud span:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.certs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.certs span {
  padding: 0.45rem 0.9rem;
  border: 1px dashed rgba(0, 155, 176, 0.45);
  color: var(--cyan-deep);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.cta-band {
  padding: 0 0 2rem;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.4rem 2.2rem;
  border-radius: var(--radius);
  background:
    radial-gradient(500px 200px at 100% 0%, rgba(0, 200, 224, 0.25), transparent 60%),
    linear-gradient(120deg, #07111f, #0b2748 55%, #0a3a4d);
  color: #fff;
}

.cta-inner p {
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.contact-list li {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 0;
  border: 0;
}

.contact-list li:last-child {
  border: 0;
}

.contact-list strong {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cyan-deep);
  letter-spacing: 0.06em;
}

.contact-list span {
  color: var(--ink);
  line-height: 1.55;
}

.contact-list a {
  color: var(--ink);
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.contact-list a:hover {
  color: var(--cyan-deep);
  border-bottom-color: var(--cyan);
}

.site-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-brand p,
.footer-copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.85;
  }
  50% {
    transform: scale(1.08);
    opacity: 1;
  }
}

@media (max-width: 980px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-visual img {
    height: 360px;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution {
    grid-template-columns: 72px 1fr;
  }

  .contact-panel {
    padding: 2rem 1.5rem 1.75rem;
  }

  .contact-body {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .contact-qr {
    justify-self: start;
    width: 100%;
    padding: 1.25rem 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
    text-align: left;
  }

  .contact-qr img {
    width: 104px;
    height: 104px;
  }

  .contact-qr p {
    letter-spacing: 0.04em;
  }
}

@media (max-width: 760px) {
  .menu-toggle {
    display: block;
  }

  .nav {
    position: fixed;
    inset: 4.5rem 1rem auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 0.8rem 0.7rem;
  }

  .nav-cta {
    text-align: center;
  }

  .hero {
    min-height: auto;
    padding-top: 6.5rem;
    padding-bottom: 5.5rem;
  }

  .hero-pillars li {
    flex: 1 1 auto;
    text-align: center;
  }

  .values,
  .product-grid,
  .stats-row {
    grid-template-columns: 1fr;
  }

  .cta-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .section {
    padding: 4.5rem 0;
  }
}