:root {
  --ink: #0b1620;
  --muted: #627181;
  --soft: #eef4f6;
  --line: #dbe5ea;
  --paper: #f6f9fb;
  --white: #ffffff;
  --navy: #071923;
  --navy-2: #0d2735;
  --cyan: #16c7b7;
  --cyan-dark: #087f80;
  --shadow: 0 18px 46px rgba(8, 28, 40, 0.11);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--paper);
  font-family:
    "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.62;
  overflow-x: hidden;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 74px;
  padding: 13px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(219, 229, 234, 0.92);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #061b20;
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), #e7fbf6);
  border-radius: 8px;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab {
  min-height: 38px;
  padding: 0 13px;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-radius: 6px;
  white-space: nowrap;
}

.tab.active {
  color: #053236;
  background: #dcf6f2;
  font-weight: 900;
}

.tab.cta {
  color: #041a1d;
  background: var(--cyan);
  font-weight: 900;
}

.app-shell {
  width: min(1280px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(24px, 4vw, 48px) 0 64px;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.hero {
  position: relative;
  min-height: min(680px, calc(100vh - 112px));
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 17, 25, 0.94) 0%, rgba(5, 17, 25, 0.78) 42%, rgba(5, 17, 25, 0.22) 100%),
    linear-gradient(0deg, rgba(5, 17, 25, 0.7) 0%, transparent 34%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(780px, 100%);
  padding: clamp(34px, 6vw, 72px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(30px, 4.5vw, 54px);
  line-height: 1.14;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 24px;
  line-height: 1.22;
}

.hero-lead {
  width: min(680px, 100%);
  color: rgba(255, 255, 255, 0.79);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  min-height: 46px;
  padding: 0 18px;
  border-radius: 6px;
  font-weight: 900;
}

.button.primary {
  color: #041a1d;
  background: var(--cyan);
  border: 0;
}

.button.secondary {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.34);
}

.trust-strip {
  position: absolute;
  right: clamp(18px, 4vw, 48px);
  bottom: clamp(18px, 4vw, 48px);
  left: clamp(18px, 4vw, 48px);
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  backdrop-filter: blur(12px);
}

.trust-strip article {
  padding: 18px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.15);
}

.trust-strip article:last-child {
  border-right: 0;
}

.trust-strip strong {
  display: block;
  color: var(--cyan);
  font-size: 32px;
  line-height: 1;
}

.trust-strip span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
}

.section-panel,
.entry-grid article,
.content-panel,
.sales-grid article,
.comparison-table,
.process-grid article,
.solution-grid article,
.case-grid article,
.contact-info,
.contact-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 26px rgba(8, 28, 40, 0.05);
}

.section-panel {
  margin-top: 22px;
  padding: clamp(24px, 4vw, 36px);
}

.section-head,
.page-head {
  width: min(850px, 100%);
  margin-bottom: 24px;
}

.section-head p:not(.eyebrow),
.page-head p,
.content-panel p,
.contact-info p {
  color: var(--muted);
}

.loop-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.loop-path {
  margin: 0 0 18px;
  padding: 14px 16px;
  color: #173242;
  background: #edf7f7;
  border: 1px solid #c9e8e5;
  border-radius: 8px;
  font-weight: 900;
}

.loop-flow article {
  position: relative;
  min-height: 178px;
  padding: 18px;
  background: #f8fbfc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.loop-flow article::after {
  position: absolute;
  top: 28px;
  right: -10px;
  z-index: 1;
  width: 18px;
  height: 1px;
  content: "";
  background: var(--cyan);
}

.loop-flow article:last-child::after {
  content: none;
}

.loop-flow span,
.process-grid span {
  color: var(--cyan-dark);
  font-weight: 900;
}

.loop-flow b,
.entry-grid b,
.process-grid b {
  display: block;
  margin: 8px 0;
  font-size: 19px;
  line-height: 1.26;
}

.loop-flow p,
.entry-grid span,
.process-grid p,
.solution-grid dd,
.case-grid p {
  color: var(--muted);
}

.process-grid p strong,
.case-grid b {
  color: #173242;
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.entry-grid article {
  padding: 22px;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.entry-grid article:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.page-head {
  margin-top: 4px;
}

.split,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr);
  gap: 22px;
  align-items: stretch;
}

.media-panel,
.wide-media {
  position: relative;
  min-height: 360px;
  margin: 0;
  overflow: hidden;
  background: var(--navy-2);
  border-radius: 8px;
}

.wide-media {
  min-height: 330px;
  margin-bottom: 18px;
}

.media-panel img,
.wide-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
}

.media-panel::after,
.wide-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, transparent 58%, rgba(5, 17, 25, 0.22));
  pointer-events: none;
}

.content-panel {
  padding: clamp(24px, 3vw, 34px);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.chips span {
  padding: 8px 11px;
  color: #053236;
  background: #dcf6f2;
  border: 1px solid #b9e7e1;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
}

.sales-grid,
.process-grid,
.solution-grid,
.case-grid {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.sales-grid {
  grid-template-columns: repeat(3, 1fr);
}

.sales-grid article,
.process-grid article,
.solution-grid article,
.case-grid article {
  padding: 22px;
}

.sales-grid ul {
  display: grid;
  gap: 8px;
  padding-left: 18px;
  margin: 0;
  color: var(--muted);
}

.comparison-table {
  margin-top: 18px;
  overflow: hidden;
}

.table-row {
  display: grid;
  grid-template-columns: 0.75fr 1.15fr 1.3fr 1.2fr 1.55fr;
  gap: 14px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

.table-row:last-child {
  border-bottom: 0;
}

.table-head {
  color: #173242;
  background: #edf5f7;
  font-size: 14px;
}

.table-row span {
  color: var(--muted);
}

.process-grid {
  grid-template-columns: repeat(3, 1fr);
}

.process-grid .deliverable {
  margin: 14px 0 0;
  padding: 12px;
  color: #173242;
  background: #f0f8f7;
  border-left: 3px solid var(--cyan);
  border-radius: 6px;
  font-weight: 800;
}

.solution-grid {
  grid-template-columns: repeat(3, 1fr);
}

.solution-grid dl {
  display: grid;
  gap: 6px;
  margin: 0;
}

.solution-grid dt {
  width: fit-content;
  padding: 2px 8px;
  color: #053236;
  background: #dcf6f2;
  border: 1px solid #b9e7e1;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 900;
}

.solution-grid dd {
  margin: 0 0 8px;
}

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

.case-grid strong {
  display: block;
  color: var(--cyan-dark);
  font-size: 28px;
  line-height: 1;
}

.case-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  gap: 18px;
  align-items: start;
}

.case-aside {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 26px rgba(8, 28, 40, 0.05);
}

.case-media {
  min-height: 260px;
  margin: 0;
  overflow: hidden;
  background: var(--navy-2);
}

.case-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
}

.case-aside-copy {
  padding: 24px;
}

.case-aside-copy p,
.case-aside-copy li {
  color: var(--muted);
}

.case-aside-copy ul {
  display: grid;
  gap: 8px;
  padding-left: 18px;
  margin: 16px 0 0;
}

.case-grid article {
  display: grid;
  align-content: start;
  gap: 10px;
}

.case-grid h3,
.case-grid p {
  margin-bottom: 0;
}

.case-grid b {
  color: #173242;
}

.contact-info {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 26px;
}

.contact-info span {
  color: var(--muted);
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 24px;
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: #173242;
  font-weight: 800;
}

.contact-form label span {
  font-size: 14px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fbfdfe;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.contact-form textarea {
  min-height: 128px;
  resize: vertical;
}

.contact-form .full,
.contact-form button {
  grid-column: 1 / -1;
}

.contact-form button {
  min-height: 50px;
  color: #041a1d;
  background: var(--cyan);
  border: 0;
  border-radius: 6px;
  font-weight: 900;
}

@media (max-width: 1120px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand {
    min-width: 0;
  }

  .tabs {
    width: 100%;
  }

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

  .loop-flow article::after {
    content: none;
  }

  .split,
  .contact-layout {
    grid-template-columns: 1fr;
  }

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

  .comparison-table {
    overflow-x: auto;
  }

  .table-row {
    min-width: 920px;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 28px, 1280px);
    padding-top: 18px;
  }

  .brand small {
    display: none;
  }

  .tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .tab {
    min-height: 40px;
    background: #eef4f5;
  }

  h1 {
    font-size: clamp(32px, 9vw, 40px);
    line-height: 1.14;
    overflow-wrap: anywhere;
  }

  h2 {
    font-size: clamp(28px, 8vw, 36px);
  }

  .hero {
    min-height: auto;
  }

  .hero-media {
    position: absolute;
  }

  .hero-overlay {
    background: rgba(5, 17, 25, 0.82);
  }

  .hero-content {
    padding: 30px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .trust-strip {
    position: relative;
    right: auto;
    bottom: auto;
    left: auto;
    grid-template-columns: repeat(2, 1fr);
    margin: 0 14px 14px;
  }

  .trust-strip article {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
  }

  .trust-strip strong {
    font-size: 28px;
  }

  .loop-flow,
  .entry-grid,
  .sales-grid,
  .process-grid,
  .solution-grid,
  .case-layout,
  .case-grid,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .media-panel,
  .wide-media {
    min-height: 240px;
  }
}