:root {
  --navy: #061d2b;
  --navy-2: #0b2f3f;
  --teal: #007c89;
  --teal-2: #00a6a6;
  --cyan: #18c7d4;
  --green: #11b981;
  --mint: #e7fbf7;
  --sky: #e8f8fb;
  --orange: #ff8a3d;
  --red: #db3345;
  --ink: #10202b;
  --muted: #5f7180;
  --line: #dbe7ea;
  --soft: #f4f9fa;
  --white: #ffffff;
  --shadow: 0 20px 55px rgba(6, 29, 43, 0.13);
  --shadow-soft: 0 14px 34px rgba(6, 29, 43, 0.09);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  line-height: 1.6;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(0, 124, 137, 0.13);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  color: var(--navy);
  letter-spacing: 0.01em;
}

.brand-logo {
  width: min(300px, 70vw);
  height: 58px;
  object-fit: contain;
  object-position: left center;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: var(--white);
  background: linear-gradient(135deg, var(--teal), var(--cyan) 48%, var(--green));
  box-shadow: 0 12px 24px rgba(0, 124, 137, 0.25);
}

.nav-links, .lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link, .lang-link {
  border-radius: 8px;
  color: #344957;
  font-size: 14px;
  font-weight: 800;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.nav-link {
  padding: 9px 12px;
}

.lang-link {
  padding: 7px 10px;
}

.nav-link:hover, .lang-link:hover {
  background: #e8f6f6;
  color: var(--teal);
}

.nav-link.active, .lang-link.active {
  color: var(--teal);
  background: #e5fbf7;
  box-shadow: inset 0 0 0 1px rgba(0, 124, 137, 0.22);
}

.lang-link.active {
  background: var(--teal);
  color: var(--white);
  box-shadow: none;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

.hero.compact {
  min-height: 430px;
}

.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(6, 29, 43, 0.95), rgba(6, 29, 43, 0.78) 52%, rgba(0, 124, 137, 0.42)),
    radial-gradient(circle at 80% 20%, rgba(24, 199, 212, 0.35), transparent 32%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 104px 0 150px;
  max-width: 820px;
}

.hero.compact .hero-inner {
  padding: 88px 0 96px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  border-radius: 8px;
  padding: 8px 12px;
  color: #c9fbff;
  background: rgba(24, 199, 212, 0.12);
  border: 1px solid rgba(201, 251, 255, 0.26);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 24px 0 0;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero.compact h1 {
  font-size: clamp(34px, 5vw, 54px);
}

.hero p {
  margin: 24px 0 0;
  max-width: 690px;
  color: #d7e8ed;
  font-size: 18px;
}

.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 0;
  border-radius: 9px;
  padding: 12px 19px;
  font-size: 14px;
  font-weight: 900;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.btn:hover {
  transform: translateY(-2px) scale(1.02);
}

.btn-primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--teal), var(--cyan));
  box-shadow: 0 14px 30px rgba(0, 124, 137, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #006b74, #0fbccc);
}

.btn-secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
}

.btn-download {
  width: 100%;
  color: var(--white);
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 16px 36px rgba(0, 124, 137, 0.28);
}

.btn-download:hover {
  transform: scale(1.05);
}

.track-panel {
  position: relative;
  z-index: 2;
  margin-top: -86px;
}

.track-box {
  padding: 28px;
  border: 1px solid rgba(0, 124, 137, 0.16);
  border-radius: 14px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.track-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.track-title {
  margin: 6px 0 0;
  color: var(--navy);
  font-size: 28px;
  line-height: 1.2;
}

.track-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  margin-top: 22px;
}

.track-input,
.form-input,
.form-textarea {
  width: 100%;
  border: 1px solid #bfd2d7;
  border-radius: 9px;
  background: var(--white);
  color: var(--ink);
  outline: none;
  transition: border 180ms ease, box-shadow 180ms ease;
}

.track-input {
  min-height: 56px;
  padding: 0 16px;
  font-size: 16px;
  font-weight: 800;
}

.track-input:focus,
.form-input:focus,
.form-textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(0, 166, 166, 0.12);
}

.track-message {
  display: none;
  margin-top: 12px;
  color: var(--red);
  font-weight: 900;
}

.track-message.show {
  display: block;
}

.spinner {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.38);
  border-top-color: var(--white);
  animation: spin 800ms linear infinite;
}

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

.section {
  padding: 86px 0;
}

.section-white {
  background: var(--white);
}

.section-dark {
  background: var(--navy);
  color: var(--white);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 34px;
}

.section-head h2,
.content h2 {
  margin: 10px 0 0;
  color: var(--navy);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.12;
}

.section-head p {
  margin: 12px 0 0;
  max-width: 690px;
  color: var(--muted);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.card,
.blog-card,
.download-card,
.widget,
.form-card,
.stat-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--white);
  box-shadow: var(--shadow-soft);
}

.card {
  padding: 26px;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.service-card {
  overflow: hidden;
  padding: 0;
}

.card-photo {
  width: 100%;
  height: 190px;
  object-fit: cover;
}

.card-pad {
  padding: 24px;
}

.card:hover,
.blog-card:hover,
.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.icon-box {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: var(--teal);
  background: var(--mint);
  margin-bottom: 18px;
}

.card h3,
.blog-card h3,
.download-card h3,
.widget h3 {
  margin: 0;
  color: var(--navy);
  line-height: 1.25;
}

.card p,
.blog-card p,
.download-card p,
.widget p,
.content p {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  align-items: center;
}

.split + .split {
  margin-top: 72px;
}

.split.reverse .split-media {
  order: 2;
}

.split.reverse .split-text {
  order: 1;
}

.media-frame {
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(0, 124, 137, 0.18);
  box-shadow: var(--shadow);
  background: #dff7f7;
}

.media-frame img {
  width: 100%;
  min-height: 340px;
  object-fit: cover;
}

.feature-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding: 14px 16px;
  border-radius: 10px;
  color: var(--navy);
  background: var(--sky);
  font-weight: 800;
}

.timeline {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px;
  border-radius: 12px;
  background: var(--sky);
}

.timeline-item span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  color: var(--white);
  background: var(--teal);
  font-weight: 1000;
}

.timeline-item p {
  margin: 0;
  color: #36515e;
  font-weight: 800;
}

.service-tile .text-link {
  margin-top: 8px;
}

.stat-card {
  padding: 22px;
}

.stat-number {
  color: var(--teal);
  font-size: 34px;
  font-weight: 1000;
  line-height: 1;
}

.stat-card p {
  margin: 9px 0 0;
  color: #4d6470;
  font-weight: 800;
}

.download-page {
  background: #071a27;
  color: var(--white);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.download-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  overflow: hidden;
  padding: 0;
  color: var(--white);
  background: linear-gradient(180deg, #102b3a, #0a2230);
  border-color: rgba(178, 247, 255, 0.12);
}

.download-card > *:not(.download-photo) {
  margin-left: 24px;
  margin-right: 24px;
}

.download-card .btn-download {
  width: calc(100% - 48px);
  margin-left: 24px;
  margin-right: 24px;
  margin-bottom: 24px;
}

.download-photo {
  width: 100%;
  height: 148px;
  object-fit: cover;
  opacity: 0.88;
}

.download-card h3 {
  color: var(--white);
  font-size: 22px;
}

.download-card p {
  color: #bdd2da;
}

.download-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: auto 0 18px;
  padding-top: 18px;
  color: #b7fbff;
  font-size: 13px;
  font-weight: 900;
}

.pdf-icon {
  width: 58px;
  height: 66px;
  margin-top: 22px;
  margin-bottom: 18px;
  color: #ff6475;
}

.category-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--white);
  box-shadow: var(--shadow-soft);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.category-card img,
.blog-card img {
  width: 100%;
  height: 164px;
  object-fit: cover;
}

.category-card .card-body,
.blog-card .card-body {
  padding: 20px;
}

.blog-card {
  overflow: hidden;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.text-link {
  display: inline-flex;
  margin-top: 14px;
  color: var(--teal);
  font-weight: 900;
}

.text-link:hover {
  color: var(--cyan);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 32px;
  align-items: start;
}

.content {
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--white);
  box-shadow: var(--shadow-soft);
}

.content h2 {
  font-size: 28px;
  margin-top: 34px;
}

.content h2:first-child {
  margin-top: 0;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 20px 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  padding: 14px 16px;
  border-radius: 10px;
  color: var(--navy);
  background: var(--mint);
  font-weight: 800;
}

.sidebar {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 96px;
}

.widget {
  padding: 22px;
}

.widget ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.widget li + li {
  border-top: 1px solid var(--line);
}

.widget li a {
  display: block;
  padding: 10px 0;
  color: #36515e;
  font-weight: 800;
}

.widget li a:hover {
  color: var(--teal);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag {
  display: inline-flex;
  border-radius: 999px;
  padding: 7px 10px;
  color: var(--teal);
  background: #e9fbfa;
  font-size: 12px;
  font-weight: 900;
}

.newsletter {
  color: var(--white);
  background: linear-gradient(135deg, var(--navy-2), var(--teal));
  border-color: rgba(255, 255, 255, 0.1);
}

.newsletter h3,
.newsletter p {
  color: var(--white);
}

.newsletter input {
  width: 100%;
  min-height: 42px;
  margin-top: 12px;
  border: 0;
  border-radius: 9px;
  padding: 0 12px;
}

.form-card {
  padding: 26px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-label {
  display: block;
  color: #35505c;
  font-size: 14px;
  font-weight: 900;
}

.form-input,
.form-textarea {
  margin-top: 8px;
  padding: 13px 14px;
  font-size: 15px;
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.contact-item {
  padding: 20px;
  border: 1px solid rgba(0, 124, 137, 0.15);
  border-radius: 12px;
  background: var(--mint);
}

.contact-item h3 {
  margin: 0;
  color: var(--navy);
}

.contact-item p {
  margin: 6px 0 0;
  color: #1c5d63;
  font-weight: 800;
}

.site-footer {
  background: var(--navy);
  color: #bdd2da;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 34px;
  padding: 48px 0;
}

.footer-title {
  color: var(--white);
  font-size: 21px;
  font-weight: 1000;
}

.footer-grid h3 {
  margin: 0 0 14px;
  color: var(--white);
}

.footer-grid a:hover {
  color: #b7fbff;
}

.footer-links {
  display: grid;
  gap: 8px;
}

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

.dark-muted {
  color: #bdd2da;
}

@media (max-width: 980px) {
  .nav {
    align-items: flex-start;
    padding: 14px 0;
  }

  .grid-3,
  .grid-4,
  .grid-5,
  .download-grid,
  .split,
  .article-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .split.reverse .split-media,
  .split.reverse .split-text {
    order: initial;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 680px) {
  .container,
  .nav {
    width: min(100% - 22px, 1180px);
  }

  .hero-inner {
    padding: 82px 0 138px;
  }

  .track-form,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 0;
  }

  .section-head {
    display: block;
  }

  .track-box,
  .content,
  .form-card {
    padding: 22px;
  }
}