:root {
  --bg: #061d33;
  --bg-soft: #0c2e4e;
  --panel: rgba(255, 255, 255, 0.9);
  --line: rgba(133, 174, 231, 0.5);
  --text: #2f3a4a;
  --muted: #5e6f84;
  --accent: #4ec6ff;
  --accent-strong: #00a0ff;
  --success: #54f0c6;
  --radius: 18px;
  --shadow: 0 24px 70px rgba(0, 20, 45, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(247, 250, 255, 0.78), rgba(240, 245, 252, 0.82)),
    url("../imgs/a6c366ea74f4f5273586a452dbbcf67a.png");
  background-size: cover, cover;
  background-position: center, center;
  background-attachment: fixed;
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

.container {
  width: min(1280px, calc(100% - 2rem));
  margin: 0 auto;
}

.section {
  padding: 5.2rem 0;
  position: relative;
  scroll-margin-top: 90px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  background: linear-gradient(180deg, rgba(231, 238, 248, 0.95), rgba(224, 233, 245, 0.9));
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(124, 147, 177, 0.22);
  padding-top: 0.55rem;
  padding-bottom: 0.55rem;
}

main {
  padding-top: 82px;
}

.brand-strip {
  width: min(1280px, calc(100% - 2rem));
  background: transparent;
  border-radius: 0;
  padding: 0.18rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-inline {
  display: flex;
  align-items: center;
  line-height: 0;
  flex-shrink: 0;
}

.brand-logo {
  height: 60px;
  width: auto;
  max-width: min(320px, 62vw);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a:not(.nav-download) {
  font-size: 1rem;
  font-weight: 700;
  color: #3d4d61;
  letter-spacing: 0.02em;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.site-nav a:not(.nav-download):hover {
  color: #0a86db;
  opacity: 1;
}

.site-nav .nav-download {
  margin-left: 0.5rem;
  padding: 0.58rem 1.1rem;
  font-size: 0.88rem;
  box-shadow: 0 8px 18px rgba(0, 141, 243, 0.3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-strong) 100%);
  box-shadow: 0 10px 24px rgba(0, 160, 255, 0.35);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 160, 255, 0.4);
}

.btn-small {
  font-size: 0.86rem;
  padding: 0.6rem 1rem;
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  box-shadow: none;
}

.hero {
  margin-top: 0;
  min-height: 580px;
  padding: 2.1rem 0 2.8rem;
  background-image:
    linear-gradient(180deg, rgba(241, 246, 255, 0.72), rgba(236, 243, 255, 0.62)),
    url("../imgs/dc7ae18c3775644fac28c9ca5c2defb9.png"),
    url("../imgs/a6c366ea74f4f5273586a452dbbcf67a.png");
  background-size: cover, cover, cover;
  background-position: center, center 62%, center;
  background-repeat: no-repeat;
  border-bottom: 1px solid rgba(12, 30, 52, 0.08);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.hero-content {
  max-width: 760px;
  padding-top: 0.25rem;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 0.8rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: #0ca6a8;
  font-family: "Barlow Condensed", sans-serif;
}

.hero-content h1 {
  margin: 0;
  font-size: clamp(2.6rem, 5.8vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  font-weight: 900;
  color: #5a5e63;
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9),
    0 2px 0 rgba(220, 228, 238, 0.9),
    0 3px 0 rgba(202, 212, 225, 0.9),
    0 10px 18px rgba(61, 77, 97, 0.22);
}

.hero-subhead {
  margin: 0.5rem 0 0;
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 500;
  color: #aeb4bd;
}

.subtitle {
  margin: 0.45rem 0 0;
  color: #b7bfc7;
  letter-spacing: 0.12em;
  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(1rem, 1.45vw, 1.6rem);
}

.hero-text {
  max-width: 38ch;
  color: #5f6977;
  margin: 1rem 0 0;
  font-size: 1.02rem;
}

.hero-media {
  position: relative;
  width: 100%;
  min-height: 300px;
  display: grid;
  place-items: center;
}

.hero-media-btn {
  min-width: 190px;
  padding: 1rem 2.3rem;
  font-size: 1.24rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  box-shadow: 0 16px 32px rgba(0, 131, 237, 0.36);
}

.section-head {
  margin-bottom: 2.2rem;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.6rem, 4vw, 2.7rem);
  font-weight: 900;
  color: #263648;
}

.section-head p {
  margin: 0.35rem 0 0;
  letter-spacing: 0.2em;
  font-family: "Barlow Condensed", sans-serif;
  color: #9aa5b3;
}

.about {
  padding-top: 4.4rem;
  padding-bottom: 4.2rem;
  background: linear-gradient(180deg, rgba(238, 246, 255, 0.52), rgba(227, 237, 249, 0.4));
}

.about .container {
  position: relative;
}

.about .container::after {
  content: "ABOUT US";
  position: absolute;
  right: -6px;
  top: 2.8rem;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.06em;
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
  font-size: clamp(2.6rem, 4.4vw, 4.6rem);
  color: rgba(255, 255, 255, 0.76);
  pointer-events: none;
}

.about .section-head {
  margin-bottom: 1.1rem;
}

.about .section-head h2,
.about .section-head p {
  display: inline-block;
  margin: 0;
  vertical-align: baseline;
}

.about .section-head p {
  margin-left: 0.75rem;
  letter-spacing: 0.06em;
  color: #a4adbb;
  font-size: clamp(1.25rem, 2.2vw, 2.05rem);
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  font-weight: 500;
}

.advantages .section-head,
.contact .section-head.left {
  margin-bottom: 1.1rem;
}

.advantages .section-head h2,
.advantages .section-head p,
.contact .section-head h2,
.contact .section-head p {
  display: inline-block;
  margin: 0;
  vertical-align: baseline;
}

.advantages .section-head p {
  margin-left: 0.75rem;
  letter-spacing: 0.06em;
  color: #a4adbb;
  font-size: clamp(1.25rem, 2.2vw, 2.05rem);
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  font-weight: 500;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  max-width: 860px;
}

.about-copy,
.stats,
.adv-card,
.contact-grid article {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 6px 18px rgba(46, 76, 113, 0.06);
}

.about-copy {
  padding: 1.75rem 1.65rem;
  color: #5f6a79;
  border-radius: 0;
  border-left: 4px solid rgba(94, 153, 247, 0.78);
  box-shadow: 0 14px 32px rgba(64, 97, 145, 0.1);
}

.about-copy p {
  margin: 0;
  line-height: 1.7;
}

.about-copy p + p {
  margin-top: 0.7rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  padding: 1.2rem 0.9rem;
  border-radius: 0;
}

.stat-card {
  padding: 0.35rem 1rem;
  border-radius: 0;
  background: transparent;
}

.stat-card + .stat-card {
  border-left: 1px dashed rgba(139, 159, 187, 0.32);
}

.stat-label {
  margin: 0;
  font-size: 0.92rem;
  color: #7b8a9b;
}

.stat-en {
  margin: 0.2rem 0 0;
  font-size: 0.77rem;
  letter-spacing: 0.12em;
  color: #b0b8c3;
}

.stat-value {
  margin: 0.25rem 0 0;
  font-size: 2.55rem;
  font-family: "Barlow Condensed", sans-serif;
  color: #739cf1;
}

.advantages {
  margin-top: 1.1rem;
  background: linear-gradient(180deg, rgba(244, 248, 255, 0.7), rgba(236, 242, 252, 0.75));
  border-top: 1px solid rgba(146, 167, 198, 0.24);
}

.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.adv-card {
  padding: 1rem;
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.93);
}

.adv-card img {
  margin-top: 1rem;
  width: 100%;
  height: 210px;
  object-fit: cover;
  border-radius: 12px;
}

.adv-num {
  display: inline-block;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 3.2rem;
  line-height: 1;
  color: #8eb1ea;
}

.adv-card h3 {
  margin: 0.3rem 0 0;
  font-size: 1.18rem;
  color: #1f2d3f;
}

.adv-card p {
  margin: 0.6rem 0 0;
  color: #5d6c7d;
  min-height: 3.4rem;
}

.adv-card::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0;
  height: 4px;
  background: #86aef1;
}

.contact-wrap {
  display: grid;
  gap: 3.4rem;
  justify-items: center;
}

.section-head.left strong {
  display: inline-block;
  margin-top: 0.8rem;
  color: #ffffff;
}

.contact {
  min-height: 700px;
  padding-top: 6.4rem;
  padding-bottom: 6.8rem;
  background-image:
    linear-gradient(180deg, rgba(236, 243, 255, 0.26), rgba(226, 237, 252, 0.36)),
    url("../imgs/a6c366ea74f4f5273586a452dbbcf67a.png");
  background-size: cover, cover;
  background-position: center, center;
  background-repeat: no-repeat;
}

.contact .section-head.left {
  width: min(980px, calc(100% - 1rem));
  text-align: right;
  justify-self: end;
  margin-bottom: 0;
}

.contact .section-head h2 {
  color: #ffffff;
}

.contact .section-head p {
  margin-left: 0.75rem;
  color: rgba(255, 255, 255, 0.85);
  font-size: clamp(1.25rem, 2.2vw, 2.05rem);
  letter-spacing: 0.06em;
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  font-weight: 500;
}

.contact .section-head.left strong {
  display: block;
  margin-top: 0.6rem;
  font-size: clamp(1.15rem, 1.8vw, 1.75rem);
  font-weight: 500;
  color: #ffffff;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  width: min(980px, calc(100% - 1rem));
  margin-top: 3.2rem;
  padding: 1.35rem 0.9rem;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(191, 205, 227, 0.55);
  box-shadow: none;
}

.contact-grid article {
  padding: 0.55rem 1.4rem 0.75rem;
  background: transparent;
  border: none;
  box-shadow: none;
  border-radius: 0;
}

.contact-grid article + article {
  border-left: 1px dashed rgba(151, 165, 190, 0.42);
}

.contact-label,
.contact-en,
.contact-text {
  margin: 0;
}

.contact-label {
  color: #2e3e54;
  font-size: 1.8rem;
  font-weight: 700;
}

.contact-en {
  margin-top: 0.25rem;
  font-size: 1rem;
  letter-spacing: 0.11em;
  color: #afb9c6;
}

.contact-text {
  margin-top: 0.6rem;
  font-weight: 500;
  font-size: 1.18rem;
  color: #516277;
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding: 1.2rem 0 1.4rem;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  font-size: 0.86rem;
  color: #abc9df;
}

.bg-glow {
  display: none;
}

.bg-glow-1 {
  width: 360px;
  height: 360px;
  left: -120px;
  top: 22%;
  background: #2aa6ff;
}

.bg-glow-2 {
  width: 300px;
  height: 300px;
  right: -120px;
  top: 65%;
  background: #00d0b8;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-grid,
  .about-grid,
  .adv-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 1.2rem 0 1.5rem;
  }

  .hero-grid {
    gap: 0.9rem;
  }

  .hero-content h1 {
    font-size: clamp(2.4rem, 12vw, 4rem);
  }

  .hero-subhead {
    font-size: clamp(1.4rem, 7vw, 2.3rem);
  }

  .hero-text {
    max-width: 44ch;
    font-size: 0.98rem;
  }

  .about .container::after {
    display: none;
  }

  .about .section-head p {
    display: block;
    margin: 0.2rem 0 0;
    font-size: 1rem;
    letter-spacing: 0.18em;
    font-family: "Barlow Condensed", sans-serif;
    font-weight: 700;
  }

  .advantages .section-head p,
  .contact .section-head p {
    display: block;
    margin: 0.2rem 0 0;
    font-size: 1rem;
    letter-spacing: 0.18em;
    font-family: "Barlow Condensed", sans-serif;
    font-weight: 700;
  }

  .stats {
    grid-template-columns: 1fr;
    gap: 0.55rem;
    padding: 0.8rem;
  }

  .stat-card + .stat-card {
    border-left: none;
  }

  .contact {
    min-height: auto;
    padding-top: 4.4rem;
    padding-bottom: 4.6rem;
  }

  .contact .section-head.left strong {
    font-size: clamp(1.2rem, 4.8vw, 1.9rem);
  }

  .contact .section-head.left {
    text-align: center;
    justify-self: center;
  }

  .contact-grid {
    margin-top: 1.4rem;
    padding: 1rem;
    gap: 0.55rem;
  }

  .contact-grid article {
    padding: 0.75rem 0.4rem;
  }

  .contact-grid article + article {
    border-left: none;
  }

  .adv-card p {
    min-height: 0;
  }

  .footer-wrap {
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .section {
    scroll-margin-top: 132px;
  }

  main {
    padding-top: 128px;
  }

  .brand-strip {
    width: min(1280px, calc(100% - 2rem));
    padding: 0.16rem 0;
    gap: 0.7rem;
    align-items: flex-start;
    flex-direction: column;
  }

  .brand-logo {
    height: 48px;
    width: auto;
    max-width: 72vw;
  }

  .site-nav {
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .site-nav a:not(.nav-download) {
    font-size: 0.92rem;
  }

  .site-nav .nav-download {
    margin-left: 0;
    padding: 0.52rem 0.95rem;
    font-size: 0.84rem;
  }

  .hero-media {
    min-height: 210px;
  }

  .hero-media-btn {
    min-width: 156px;
    padding: 0.82rem 1.7rem;
    font-size: 1.05rem;
  }

  .contact .section-head h2 {
    font-size: clamp(2.2rem, 12vw, 3rem);
  }

  .contact .section-head.left strong {
    font-size: clamp(1.15rem, 6vw, 1.6rem);
  }

  .contact-label {
    font-size: 1.55rem;
  }

  .contact-en {
    font-size: 0.86rem;
  }

  .contact-text {
    font-size: 1.08rem;
  }

  .btn,
  .btn-small {
    width: auto;
  }

  .hero-actions {
    width: 100%;
  }
}