:root {
  /* Sticky offsets read these — never hard-code the header height. The
     condensed value applies once motion.js flags the scrolled state. */
  --sj-header-h: 88px;
  --sj-header-h-condensed: 66px;
}

body {
  margin: 0;
  font-family: "Archivo", "Noto Sans SC", system-ui, sans-serif;
}

h1, h2, h3, h4, h5, h6 {
  font-family: "Archivo", "Noto Sans SC", system-ui, sans-serif;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent-600);
}

::placeholder {
  color: color-mix(in srgb, var(--color-text) 40%, transparent);
}

.sj-site {
  background: var(--color-bg);
  color: var(--color-text);
  min-width: 1200px;
}

.sj-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 48px;
}

.sj-container--nav {
  padding: 0 32px;
}

/* Top bar */
.sj-topbar {
  background: #0b1a2b;
  color: #cddae5;
  font-size: 12px;
  letter-spacing: 0.02em;
}

.sj-topbar__inner {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sj-topbar__left,
.sj-topbar__right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.sj-topbar__right {
  gap: 22px;
}

.sj-topbar__phone {
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.04em;
}

.sj-topbar a {
  color: #cddae5;
}

.sj-topbar a.is-active {
  color: #fff;
  font-weight: 700;
}

.sj-topbar__divider {
  width: 1px;
  height: 14px;
  background: var(--color-neutral-700);
}

.sj-topbar__muted {
  color: #7d94aa;
}

/* Header */
.sj-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-divider);
}

.sj-header__inner {
  height: var(--sj-header-h);
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 24px;
}

.sj-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--color-text);
}

.sj-logo__mark {
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: -0.02em;
}

.sj-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.sj-logo__name {
  font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Noto Sans SC", sans-serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.sj-logo__en {
  font-size: 9.5px;
  letter-spacing: 0.18em;
  color: var(--color-neutral-600);
  font-weight: 600;
}

.sj-nav {
  display: flex;
  align-items: stretch;
  gap: 2px;
  font-size: 15px;
  font-weight: 700;
}

.sj-nav__item {
  position: relative;
  display: flex;
  align-items: stretch;
}

.sj-nav__item > a {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: none;
  white-space: nowrap;
  padding: 0 12px;
  color: var(--color-text);
  border-bottom: 3px solid transparent;
  text-decoration: none;
}

.sj-nav__item > a:hover,
.sj-nav__item.is-active > a,
.sj-nav a.is-active {
  border-bottom-color: var(--color-accent);
}

.sj-nav__caret {
  opacity: 0.55;
  transition: transform 180ms ease, opacity 180ms ease;
}

.sj-nav__item--has-dropdown:hover > a .sj-nav__caret,
.sj-nav__item--has-dropdown:focus-within > a .sj-nav__caret {
  transform: rotate(180deg);
  opacity: 1;
}

.sj-nav__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 168px;
  padding: 8px 0;
  background: var(--color-bg);
  border: 2px solid var(--color-divider);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  z-index: 80;
}

.sj-nav__item--has-dropdown:hover .sj-nav__dropdown,
.sj-nav__item--has-dropdown:focus-within .sj-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sj-nav__dropdown a {
  display: block;
  padding: 11px 18px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 0;
  white-space: nowrap;
  text-decoration: none;
}

.sj-nav__dropdown a:hover {
  background: #eef3f8;
  color: var(--color-accent);
}

.sj-header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.sj-search {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-divider);
  height: 38px;
}

.sj-search input {
  border: 0;
  width: 92px;
  background: transparent;
  height: 36px;
  padding: 0 10px;
}

.sj-search button {
  border-left: 1px solid var(--color-divider);
  height: 36px;
  width: 38px;
}

/* Hero */
.sj-hero {
  position: relative;
  height: 660px;
  overflow: hidden;
  background: #0b1a2b;
}

.sj-hero__track {
  position: absolute;
  inset: 0;
  display: flex;
  width: 300%;
  transition: transform 700ms cubic-bezier(.4, 0, .2, 1);
}

.sj-hero__slide {
  width: 33.3333%;
  position: relative;
}

.sj-hero__slide img {
  width: 100%;
  height: 660px;
  object-fit: cover;
  opacity: 0.75;
}

.sj-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 22, 36, .9) 0%, rgba(9, 22, 36, .6) 50%, rgba(9, 22, 36, .16) 100%);
}

.sj-hero__content {
  position: absolute;
  inset: 0;
}

.sj-hero__content .sj-container {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sj-hero__accent {
  width: 4px;
  height: 64px;
  background: var(--color-accent);
  margin-bottom: 28px;
}

.sj-hero__kicker {
  font-size: 13px;
  letter-spacing: 0.32em;
  color: #f0a833;
  font-weight: 700;
  margin-bottom: 18px;
}

.sj-hero__title {
  font-size: 68px;
  line-height: 1.08;
  color: #fff;
  letter-spacing: 0.01em;
  margin: 0 0 24px;
  max-width: 15em;
  text-wrap: pretty;
  white-space: pre-line;
}

.sj-hero__body {
  font-size: 18px;
  line-height: 1.8;
  color: #b6c8d7;
  max-width: 40em;
  margin: 0 0 40px;
}

.sj-hero__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sj-hero__actions .btn-outline-light {
  height: 52px;
  padding: 0 30px;
  font-size: 15px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .45);
}

.sj-hero__actions .btn-outline-light:hover {
  background: rgba(255, 255, 255, .12);
}

.sj-hero__controls {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
}

.sj-hero__controls .sj-container {
  padding-bottom: 34px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.sj-hero__nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.sj-hero__nav button {
  width: 46px;
  height: 46px;
  padding: 0;
  justify-content: center;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .4);
}

.sj-hero__nav button:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.sj-hero__counter {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-left: 10px;
  color: #fff;
  font-weight: 800;
  font-size: 14px;
}

.sj-hero__counter span:last-child {
  color: rgba(255, 255, 255, .45);
}

.sj-hero__dots {
  display: flex;
  gap: 10px;
}

.sj-hero__dots button {
  width: 64px;
  height: 4px;
  border: 0;
  padding: 0;
  cursor: pointer;
  background: rgba(255, 255, 255, .3);
}

.sj-hero__dots button.is-active {
  background: var(--color-accent);
}

/* Stats bar */
.sj-stats {
  border-bottom: 2px solid var(--color-divider);
  background: #0b1a2b;
}

.sj-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.sj-stats__item {
  padding: 44px 32px 40px;
  border-right: 1px solid #1e3550;
}

.sj-stats__item:first-child {
  padding-left: 0;
}

.sj-stats__item:last-child {
  border-right: 0;
  padding-right: 0;
}

.sj-stats__value {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: #fff;
}

.sj-stats__value strong {
  font-size: 46px;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.sj-stats__value span {
  font-size: 15px;
  color: #93a9bd;
  font-weight: 700;
}

.sj-stats__label {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: #7d94aa;
  margin-top: 8px;
  font-weight: 600;
}

/* Section common */
.sj-section {
  border-bottom: 2px solid var(--color-divider);
}

.sj-section--surface {
  background: var(--color-surface);
}

.sj-section--dark {
  background: #0b1a2b;
  color: #cddae5;
}

.sj-section__inner {
  padding: 96px 0;
}

.sj-kicker {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--color-accent-700);
  font-weight: 800;
  margin-bottom: 18px;
}

.sj-kicker--gold {
  color: #f0a833;
}

.sj-section__title {
  font-size: 44px;
  margin: 0;
  letter-spacing: 0.01em;
  line-height: 1.15;
}

.sj-section__title--light {
  color: #fff;
}

.sj-section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 44px;
}

/* About */
.sj-about__grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 80px;
  align-items: start;
}

.sj-about__text p {
  font-size: 16px;
  line-height: 1.95;
  color: var(--color-neutral-800);
}

.sj-about__actions {
  display: flex;
  gap: 14px;
  margin-top: 34px;
}

.sj-about__figure img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.sj-about__features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 2px solid var(--color-divider);
}

.sj-about__feature {
  padding: 24px 20px 20px;
  border-right: 1px solid var(--color-divider);
}

.sj-about__feature:first-child {
  padding-left: 0;
}

.sj-about__feature:last-child {
  border-right: 0;
  padding-right: 0;
}

.sj-about__feature h4 {
  font-size: 17px;
  margin: 0 0 8px;
}

.sj-about__feature p {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--color-neutral-700);
  margin: 0;
}

/* Products */
.sj-products__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 32px;
}

.sj-product-card {
  display: block;
  color: var(--color-text);
  border: 2px solid var(--color-divider);
  background: var(--color-bg);
}

.sj-product-card:hover {
  background: #eef3f8;
}

.sj-product-card img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-bottom: 2px solid var(--color-divider);
}

.sj-product-card__body {
  padding: 32px 28px 34px;
}

.sj-product-card__tag {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--color-neutral-600);
  font-weight: 700;
  margin-bottom: 12px;
}

.sj-product-card h3 {
  font-size: 23px;
  margin: 0 0 12px;
}

.sj-product-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-neutral-700);
  margin: 0 0 18px;
}

/* Strength */
.sj-strength__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 2px solid var(--color-divider);
  border-left: 1px solid var(--color-divider);
}

.sj-strength__item {
  padding: 34px 30px 36px;
  border-right: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

.sj-strength__item h4 {
  font-size: 20px;
  margin: 18px 0 10px;
}

.sj-strength__item p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-neutral-700);
  margin: 0;
}

.sj-strength__cta {
  background: var(--color-accent);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.sj-strength__cta .sj-kicker {
  color: #fff;
  opacity: 0.85;
  margin-bottom: 0;
}

.sj-strength__cta h4 {
  font-size: 24px;
  margin: 16px 0 10px;
  color: #fff;
}

.sj-strength__cta .btn {
  background: #fff;
  color: var(--color-accent);
  height: 46px;
  padding: 0 22px;
  align-self: flex-start;
  margin-top: 22px;
}

.sj-certs {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 40px;
  align-items: center;
  margin-top: 56px;
  padding-top: 44px;
  border-top: 2px solid var(--color-divider);
}

.sj-certs figure img {
  width: 100%;
  height: 230px;
  object-fit: contain;
  background: var(--color-surface);
  padding: 14px;
}

.sj-certs h4 {
  font-size: 22px;
  margin: 0 0 12px;
}

.sj-certs p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-neutral-700);
  margin: 0 0 18px;
}

/* Cases */
.sj-cases__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 2px;
  background: #1e3550;
}

.sj-case-card {
  position: relative;
  display: block;
  color: #fff;
}

.sj-case-card img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  opacity: 0.9;
}

.sj-case-card__meta {
  position: absolute;
  inset: auto 0 0 0;
  padding: 28px 26px;
  background: linear-gradient(0deg, rgba(9, 22, 36, .94), transparent);
}

.sj-case-card__client {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: #f0a833;
  font-weight: 700;
  margin-bottom: 8px;
}

.sj-case-card__title {
  font-size: 20px;
  font-weight: 800;
}

.sj-case-card__desc {
  font-size: 13px;
  color: #93a9bd;
  margin-top: 6px;
}

.sj-partners {
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid #1e3550;
}

.sj-partners__label {
  font-size: 12px;
  letter-spacing: 0.24em;
  color: #7d94aa;
  font-weight: 700;
  margin-bottom: 24px;
}

.sj-partners__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-left: 1px solid #1e3550;
  border-top: 1px solid #1e3550;
}

.sj-partners__item {
  min-height: 124px;
  height: auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  padding: 0 20px;
  border-right: 1px solid #1e3550;
  border-bottom: 1px solid #1e3550;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.35;
  color: #b6c8d7;
}

.sj-partners__logo {
  width: auto;
  height: 36px;
  max-width: 56px;
  object-fit: contain;
  object-position: left center;
  display: block;
  flex: none;
}

.sj-partners__name {
  display: block;
  min-width: 0;
}

.sj-partners__item.is-muted {
  color: #7d94aa;
}

/* News */
.sj-news__filters {
  display: flex;
  gap: 8px;
}

.sj-news__list {
  border-top: 2px solid var(--color-divider);
}

.sj-news__item {
  display: grid;
  grid-template-columns: 150px 1fr 130px;
  gap: 40px;
  align-items: center;
  padding: 30px 0;
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text);
}

.sj-news__item:hover {
  background: #eef3f8;
}

.sj-news__date {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-neutral-600);
  letter-spacing: 0.06em;
}

.sj-news__title {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 8px;
}

.sj-news__excerpt {
  font-size: 14px;
  color: var(--color-neutral-700);
}

.sj-news__tag {
  text-align: right;
}

/* Contact */
.sj-contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.sj-contact__lead {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-neutral-700);
  max-width: 34em;
}

.sj-contact__info {
  border-top: 2px solid var(--color-divider);
  margin-top: 36px;
}

.sj-contact__row {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-divider);
}

.sj-contact__row svg {
  flex: none;
  margin-top: 4px;
}

.sj-contact__label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--color-neutral-600);
  font-weight: 700;
  margin-bottom: 6px;
}

.sj-contact__phone {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 0.02em;
}

.sj-contact__form {
  background: var(--color-bg);
  border: 2px solid var(--color-divider);
  padding: 40px;
}

.sj-contact__form h3 {
  font-size: 24px;
  margin: 0 0 6px;
}

.sj-contact__form-note {
  font-size: 13.5px;
  color: var(--color-neutral-700);
  margin: 0 0 28px;
}

.sj-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.sj-form-grid .field--full {
  grid-column: 1 / -1;
}

/* Footer */
.sj-footer {
  background: #0b1a2b;
  color: #93a9bd;
}

.sj-footer__grid {
  padding: 72px 0 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 48px;
}

.sj-footer__brand p {
  font-size: 13.5px;
  line-height: 1.9;
  margin: 0 0 18px;
  max-width: 26em;
}

.sj-footer__phone {
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: 0.02em;
}

.sj-footer__col-title {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: #fff;
  font-weight: 800;
  margin-bottom: 18px;
}

.sj-footer__links {
  display: flex;
  flex-direction: column;
  gap: 11px;
  font-size: 13.5px;
}

.sj-footer__links a {
  color: #93a9bd;
}

.sj-footer__qr-grid {
  display: flex;
  gap: 16px;
}

.sj-footer__qr {
  width: 92px;
  height: 92px;
  background: #14283e;
  border: 1px solid #2b4864;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: #7d94aa;
  text-align: center;
  line-height: 1.5;
}

.sj-footer__qr-label {
  font-size: 11.5px;
  margin-top: 8px;
  text-align: center;
  color: #7d94aa;
}

.sj-footer__bottom {
  border-top: 1px solid #1e3550;
}

.sj-footer__bottom .sj-container {
  padding-top: 22px;
  padding-bottom: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  font-size: 12.5px;
  color: #7d94aa;
}

.sj-footer__legal {
  display: flex;
  gap: 22px;
}

.sj-footer__legal a {
  color: #7d94aa;
}

.btn-lg {
  height: 52px;
  padding: 0 30px;
  font-size: 15px;
}

.btn-md {
  height: 46px;
  padding: 0 24px;
}

.btn-dark-outline {
  color: #fff;
  border: 1px solid #2b4864;
}

.btn-dark-outline:hover {
  background: #14283e;
}

.sj-btn-white-bg {
  background: var(--color-bg);
}

/* Inner page hero + subnav + CTA — shared across all secondary pages */
.sj-page-hero {
  position: relative;
  height: 380px;
  overflow: hidden;
  background: #0b1a2b;
}

.sj-page-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.sj-page-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 22, 36, .92) 0%, rgba(9, 22, 36, .55) 60%, rgba(9, 22, 36, .2) 100%);
}

.sj-page-hero__content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sj-page-hero__accent {
  width: 4px;
  height: 48px;
  background: var(--color-accent);
  margin-bottom: 22px;
}

.sj-kicker--light {
  color: #f0a833;
}

.sj-page-hero__title {
  font-size: 48px;
  line-height: 1.12;
  color: #fff;
  margin: 0 0 16px;
  letter-spacing: 0.01em;
}

.sj-page-hero__desc {
  font-size: 16px;
  line-height: 1.8;
  color: #b6c8d7;
  margin: 0;
  max-width: 36em;
}

.sj-page-nav {
  border-bottom: 2px solid var(--color-divider);
  background: var(--color-bg);
  position: sticky;
  top: var(--sj-header-h);
  transition: top var(--sj-dur, 300ms) var(--sj-ease, ease);
  z-index: 50;
}

.sj-page-nav__list {
  display: flex;
  gap: 4px;
  overflow-x: auto;
}

.sj-page-nav__list a {
  display: flex;
  align-items: center;
  flex: none;
  white-space: nowrap;
  padding: 18px 20px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  border-bottom: 3px solid transparent;
  text-decoration: none;
}

.sj-page-nav__list a:hover,
.sj-page-nav__list a.is-active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.sj-page-cta {
  background: #0b1a2b;
  color: #cddae5;
}

.sj-page-cta__inner {
  padding: 72px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.sj-page-cta h2 {
  font-size: 32px;
  color: #fff;
  margin: 0 0 12px;
}

.sj-page-cta p {
  font-size: 15px;
  line-height: 1.85;
  margin: 0;
  max-width: 32em;
}

.sj-page-cta__actions {
  display: flex;
  gap: 14px;
  flex: none;
}

.sj-page-cta .btn-secondary {
  color: #fff;
  border-color: #2b4864;
}

.sj-page-cta .btn-secondary:hover {
  background: #14283e;
}