:root {
  color-scheme: light;
  --ink: #123341;
  --ink-strong: #082734;
  --muted: #526b75;
  --accent: #006f89;
  --accent-hover: #00566b;
  --line: #d9e6e9;
  --surface: #ffffff;
  --page: #f5f9fa;
  --tint: #eaf4f6;
  --radius: 14px;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-synthesis: none;
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

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

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

h1,
h2,
h3,
p,
figure {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

::selection {
  color: #fff;
  background: var(--accent);
}

:focus-visible {
  outline: 3px solid #28a7bc;
  outline-offset: 4px;
}

section[id] {
  scroll-margin-top: 92px;
}

.container {
  width: min(100% - 88px, 1240px);
  margin-inline: auto;
}

.section {
  padding-block: clamp(76px, 8vw, 120px);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  transform: translateY(-150%);
  padding: 10px 16px;
  border-radius: 8px;
  color: #fff;
  background: var(--ink-strong);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: relative;
  z-index: 30;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 1px 0 rgba(17, 66, 78, 0.08);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 32px;
}

.brand,
.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
  font-weight: 800;
  color: var(--ink-strong);
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.brand__name {
  font-size: 1.33rem;
  line-height: 1.1;
}

.brand__name span {
  display: block;
  margin-top: 3px;
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 36px);
  font-size: 0.92rem;
  font-weight: 600;
  white-space: nowrap;
}

.site-nav > a {
  transition: color 180ms ease;
}

.site-nav > a:hover,
.site-footer a:hover,
.text-link:hover {
  color: var(--accent);
}

.site-nav__login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 39px;
  margin-left: 8px;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 9px;
  color: var(--accent);
}

.site-nav__login:hover {
  background: var(--tint);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 12px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin-block: 4px;
  border-radius: 1px;
  background: var(--ink-strong);
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  isolation: isolate;
  min-height: min(700px, calc(100dvh - 76px));
  overflow: hidden;
  color: #fff;
  background: #0d4a66;
}

.hero__image,
.hero__shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__image {
  z-index: -2;
  object-fit: cover;
  object-position: center 50%;
}

.hero__shade {
  z-index: -1;
  background: linear-gradient(90deg, rgba(2, 38, 52, 0.25) 0%, rgba(2, 38, 52, 0.06) 52%, transparent 76%);
}

.hero__content {
  padding-block: 92px 104px;
}

.hero__eyebrow,
.section-heading__eyebrow {
  display: inline-block;
  margin-bottom: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.hero__eyebrow {
  color: #c8edf0;
}

.hero h1 {
  max-width: 780px;
  font-size: clamp(2.8rem, 5vw, 5.1rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.hero__description {
  max-width: min(590px, 38vw);
  margin-top: 28px;
  font-size: clamp(1rem, 1.3vw, 1.16rem);
  line-height: 1.9;
  color: #eef9f9;
  text-wrap: pretty;
}

.hero__actions,
.closing__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.hero__actions {
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 11px 25px;
  border: 1px solid transparent;
  border-radius: 9px;
  font-size: 0.97rem;
  font-weight: 700;
  line-height: 1.4;
  white-space: nowrap;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  color: #fff;
  background: var(--accent);
}

.button--primary:hover {
  background: var(--accent-hover);
}

.button--light {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(5, 42, 54, 0.2);
}

.button--light:hover {
  background: rgba(255, 255, 255, 0.16);
}

.section-heading {
  max-width: 780px;
}

.section-heading__eyebrow {
  color: var(--accent);
}

.section-heading h2,
.capabilities__intro h2,
.audiences__heading h2,
.closing h2 {
  color: var(--ink-strong);
  font-size: clamp(2.15rem, 3.3vw, 3.5rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.05em;
  text-wrap: balance;
}

.section-heading > p:last-child,
.capabilities__intro > p:last-child,
.audiences__heading > p:not(.section-heading__eyebrow),
.closing__copy > p:last-child {
  max-width: 660px;
  margin-top: 21px;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.9;
}

.workflow__steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 26px;
  margin-top: 56px;
  list-style: none;
}

.workflow__steps li {
  min-width: 0;
  padding-top: 22px;
  border-top: 2px solid var(--line);
}

.workflow__number,
.capability__index {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.workflow__steps h3 {
  margin-top: 16px;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink-strong);
}

.workflow__steps p {
  margin-top: 9px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.8;
}

.capabilities {
  background: var(--tint);
}

.capabilities__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(70px, 9vw, 160px);
  align-items: start;
}

.capabilities__intro {
  position: sticky;
  top: 35px;
}

.capabilities__intro > p:last-child {
  max-width: 440px;
}

.capabilities__list {
  border-top: 1px solid #cbdfe4;
}

.capability {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
  padding-block: 25px 28px;
  border-bottom: 1px solid #cbdfe4;
}

.capability__index {
  padding-top: 7px;
}

.capability h3 {
  color: var(--ink-strong);
  font-size: 1.27rem;
  font-weight: 800;
}

.capability p {
  max-width: 440px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.97rem;
  line-height: 1.85;
}

.workspaces__visual {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(205px, 0.28fr);
  align-items: end;
  gap: clamp(20px, 3.7vw, 56px);
  margin-top: 55px;
}

.screen-frame {
  overflow: hidden;
  border: 1px solid #c8dce3;
  background: #fff;
  box-shadow: 0 20px 55px rgba(19, 64, 77, 0.14);
}

.screen-frame--desktop {
  border-radius: var(--radius);
  padding: 7px;
}

.screen-frame--desktop img {
  width: 100%;
  border-radius: 8px;
}

.screen-frame--mobile {
  max-width: 250px;
  margin-inline: auto;
  border: 6px solid #e5edef;
  border-radius: 27px;
  box-shadow: 0 20px 45px rgba(19, 64, 77, 0.16);
}

.screen-frame--mobile img {
  width: 100%;
}

.workspaces figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: baseline;
  margin-top: 23px;
  font-size: 0.95rem;
}

.workspaces figcaption strong {
  color: var(--ink-strong);
  font-weight: 800;
}

.workspaces figcaption span,
.workspaces__note {
  color: var(--muted);
}

.workspaces__note {
  margin-top: 32px;
  font-size: 0.8rem;
}

.audiences {
  background: #e9f3f5;
}

.audiences__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: clamp(50px, 9vw, 145px);
}

.audiences__tabs {
  display: inline-flex;
  gap: 7px;
  margin-top: 32px;
  padding: 5px;
  border: 1px solid #cadfe4;
  border-radius: 10px;
  background: #f8fbfb;
}

.audiences__tab {
  min-width: 118px;
  min-height: 42px;
  padding: 6px 14px;
  border: 0;
  border-radius: 7px;
  color: var(--muted);
  background: transparent;
  font-weight: 700;
  cursor: pointer;
  transition: color 180ms ease, background-color 180ms ease;
}

.audiences__tab:hover {
  color: var(--accent);
}

.audiences__tab.is-active {
  color: #fff;
  background: var(--accent);
}

.audiences__panels {
  min-width: 0;
}

.audiences__panel {
  min-height: 385px;
  padding: clamp(30px, 4vw, 53px);
  border: 1px solid #d1e3e7;
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 20px 50px rgba(30, 76, 87, 0.06);
}

.audiences__panel[hidden] {
  display: none;
}

.audiences__label {
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 800;
}

.audiences__panel h3 {
  max-width: 430px;
  margin-top: 15px;
  color: var(--ink-strong);
  font-size: clamp(1.65rem, 2.4vw, 2.2rem);
  font-weight: 800;
  line-height: 1.36;
  letter-spacing: -0.04em;
}

.audiences__panel > p:not(.audiences__label) {
  max-width: 490px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.99rem;
  line-height: 1.85;
}

.audiences__panel ul {
  display: grid;
  gap: 12px;
  margin-top: 27px;
  list-style: none;
}

.audiences__panel li {
  padding-left: 14px;
  border-left: 3px solid #71becb;
  color: var(--ink);
  font-size: 0.94rem;
  line-height: 1.55;
}

.closing {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 50px;
}

.closing__copy {
  max-width: 720px;
}

.closing__actions {
  flex: none;
  flex-direction: column;
  align-items: stretch;
}

.closing__actions .button {
  min-width: 222px;
}

.text-link {
  align-self: center;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 116px;
  gap: 24px;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer__brand {
  font-size: 0.96rem;
}

.site-footer a {
  font-weight: 700;
}

@media (max-width: 1100px) {
  .site-nav {
    gap: 17px;
    font-size: 0.85rem;
  }

  .brand__name {
    font-size: 1.18rem;
  }

  .capabilities__layout,
  .audiences__layout {
    gap: 55px;
  }
}

@media (max-width: 900px) {
  .container {
    width: min(100% - 52px, 1240px);
  }

  .site-header__inner {
    min-height: 70px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 26px 22px;
    border-top: 1px solid var(--line);
    box-shadow: 0 20px 32px rgba(21, 66, 78, 0.11);
    background: #fff;
    font-size: 1rem;
  }

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

  .site-nav > a {
    padding: 12px 0;
  }

  .site-nav__login {
    margin: 8px 0 0;
    padding: 8px 18px !important;
  }

  .hero {
    min-height: 650px;
  }

  .hero__shade {
    background: linear-gradient(90deg, rgba(3, 39, 52, 0.88), rgba(3, 48, 59, 0.68) 55%, rgba(3, 48, 59, 0.12));
  }

  .hero__description {
    max-width: 52vw;
  }

  .workflow__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .capabilities__layout,
  .audiences__layout {
    grid-template-columns: 1fr;
  }

  .capabilities__intro {
    position: static;
  }

  .capabilities__intro h2 br,
  .audiences__heading h2 br {
    display: none;
  }

  .capabilities__list {
    margin-top: 8px;
  }

  .audiences__panels {
    max-width: 700px;
  }

  .closing {
    align-items: start;
    flex-direction: column;
    gap: 30px;
  }

  .closing__actions {
    align-items: start;
  }
}

@media (max-width: 600px) {
  .container {
    width: min(100% - 36px, 1240px);
  }

  .section {
    padding-block: 70px;
  }

  .site-header__inner {
    min-height: 68px;
  }

  .brand img {
    width: 41px;
  }

  .brand__name {
    font-size: 1.07rem;
  }

  .brand__name span {
    font-size: 0.64rem;
  }

  .hero {
    min-height: 630px;
    align-items: end;
  }

  .hero__image {
    object-position: 54% center;
  }

  .hero__shade {
    background: linear-gradient(90deg, rgba(3, 39, 52, 0.7), rgba(3, 48, 59, 0.52)), linear-gradient(0deg, rgba(3, 37, 46, 0.62), transparent 72%);
  }

  .hero__content {
    padding-block: 92px 69px;
  }

  .hero__eyebrow,
  .section-heading__eyebrow {
    margin-bottom: 15px;
    font-size: 0.8rem;
  }

  .hero h1 {
    font-size: clamp(2.45rem, 10vw, 3.25rem);
    line-height: 1.25;
  }

  .hero__description {
    max-width: none;
    margin-top: 21px;
    line-height: 1.8;
  }

  .hero__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 30px;
  }

  .button {
    min-height: 49px;
    padding-inline: 13px;
    font-size: 0.86rem;
  }

  .section-heading h2,
  .capabilities__intro h2,
  .audiences__heading h2,
  .closing h2 {
    font-size: clamp(2rem, 7vw, 2.7rem);
  }

  .section-heading > p:last-child,
  .capabilities__intro > p:last-child,
  .audiences__heading > p:not(.section-heading__eyebrow),
  .closing__copy > p:last-child {
    margin-top: 16px;
    font-size: 0.98rem;
  }

  .workflow__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 18px;
    margin-top: 40px;
  }

  .workflow__steps li {
    padding-top: 14px;
  }

  .workflow__steps h3 {
    margin-top: 10px;
    font-size: 1.05rem;
  }

  .workflow__steps p {
    font-size: 0.88rem;
  }

  .capabilities__layout,
  .audiences__layout {
    gap: 35px;
  }

  .capability {
    grid-template-columns: 32px 1fr;
    gap: 12px;
    padding-block: 20px 22px;
  }

  .capability h3 {
    font-size: 1.17rem;
  }

  .capability p {
    font-size: 0.92rem;
  }

  .workspaces__visual {
    grid-template-columns: 1fr;
    gap: 42px;
    margin-top: 38px;
  }

  .workspaces__mobile {
    width: min(250px, 72%);
    margin-inline: auto;
  }

  .workspaces__mobile figcaption {
    justify-content: center;
    text-align: center;
  }

  .workspaces__note {
    margin-top: 23px;
  }

  .audiences__tabs {
    margin-top: 23px;
  }

  .audiences__tab {
    min-width: 105px;
  }

  .audiences__panel {
    min-height: 0;
    padding: 28px 24px;
  }

  .audiences__panel h3 {
    font-size: 1.55rem;
  }

  .closing__actions {
    width: 100%;
  }

  .closing__actions .button {
    width: 100%;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 13px;
    padding-block: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

}