:root {
  --navy:#101e32;
  --ink:#15263a;
  --teal:#43d7bd;
  --muted:#657180;
  --line:#dce2e7;
  --soft:#f3f6f8;
  --white:#fff;
  --container:1240px;
}
* {
  box-sizing:border-box;
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:100px;
}
body {
  margin:0;
  color:var(--ink);
  background:var(--white);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a {
  color:inherit;
  text-decoration:none;
}
button {
  font:inherit;
  cursor:pointer;
}
img {
  display:block;
  max-width:100%;
}
h1,h2,h3,p,figure {
  margin:0;
}
p {
  line-height:1.9;
}
a,button {
  -webkit-tap-highlight-color:transparent;
}
a:focus-visible,button:focus-visible {
  outline:3px solid #168574;
  outline-offset:6px;
}
.container {
  width:min(var(--container),calc(100% - 120px));
  margin-inline:auto;
}
.skip-link {
  position:fixed;
  top:12px;
  left:12px;
  z-index:10;
  padding:12px;
  background:var(--teal);
  color:var(--navy);
  clip-path:inset(50%);
  width:1px;
  height:1px;
  overflow:hidden;
  white-space:nowrap;
}
.skip-link:focus {
  clip-path:none;
  width:auto;
  height:auto;
}
.site-header {
  height:84px;
  background:#fff;
  position:relative;
  z-index:5;
  border-bottom:1px solid #edf0f3;
}
.header-inner {
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand {
  display:inline-flex;
  align-items:center;
  gap:18px;
}
.brand-mark {
  width:34px;
  height:44px;
  color:#158d89;
  flex-shrink:0;
}
.brand-type {
  display:flex;
  flex-direction:column;
  gap:3px;
}
.brand-type strong {
  font-size:25px;
  line-height:1.25;
  letter-spacing:2px;
  font-weight:650;
}
.brand-type small {
  font-size:10px;
  letter-spacing:1px;
  font-weight:550;
}
.primary-nav {
  height:100%;
  display:flex;
  gap:48px;
  align-items:center;
}
.primary-nav a {
  height:100%;
  position:relative;
  display:flex;
  align-items:center;
  font-size:15px;
  font-weight:550;
}
.primary-nav a:after {
  content:"";
  position:absolute;
  bottom:20px;
  left:0;
  right:0;
  height:2px;
  background:var(--teal);
  transform:scaleX(0);
  transition:transform .2s;
}
.primary-nav a:hover:after,.primary-nav a[aria-current]:after {
  transform:scaleX(1);
}
.menu-toggle {
  display:none;
}
.hero {
  background:var(--navy);
  min-height:570px;
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
}
.hero-image {
  position:absolute;
  inset:0 0 0 auto;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center 53%;
}
.hero-content {
  position:relative;
  z-index:1;
  padding-block:90px;
}
.hero h1 {
  color:#fff;
  font-size:clamp(42px,4.9vw,72px);
  font-weight:650;
  line-height:1.3;
  letter-spacing:1px;
}
.hero p {
  color:#b2bdc8;
  font-size:23px;
  margin-top:22px;
}
.hero-actions {
  display:flex;
  gap:24px;
  margin-top:34px;
}
.button {
  min-height:56px;
  min-width:184px;
  padding:16px 25px;
  background:var(--teal);
  color:var(--navy);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:20px;
  font-size:15px;
  font-weight:650;
  border:1px solid transparent;
  border-radius:3px;
  transition:background .2s,transform .2s;
}
.button:hover {
  background:#69e4cf;
  transform:translateY(-2px);
}
.button-outline {
  background:transparent;
  border-color:#e0e7ef;
  color:#fff;
}
.button-outline:hover {
  background:#ffffff15;
}
.button-dark {
  background:var(--navy);
  color:#fff;
}
.button-dark:hover {
  background:#26405c;
}
.arrow {
  width:24px;
  height:24px;
  flex-shrink:0;
}
.section {
  padding-block:70px;
}
.section-soft {
  background:var(--soft);
}
.section-number {
  color:#0ea992;
  font-size:16px;
  display:flex;
  align-items:center;
  gap:24px;
  margin-bottom:12px;
}
.section-number span {
  height:1px;
  width:70px;
  background:#20bda6;
}
.section-title {
  font-size:30px;
  line-height:1.5;
  font-weight:650;
  letter-spacing:1px;
}
.statement {
  font-size:40px;
  line-height:1.5;
  letter-spacing:.5px;
  font-weight:650;
  margin-top:24px;
}
.company-line {
  font-size:21px;
  margin-top:24px;
  color:#566375;
}
.muted {
  color:var(--muted);
  font-size:16px;
  line-height:1.9;
  margin-top:22px;
}
.about-preview {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:70px;
  align-items:center;
}
.about-image {
  position:relative;
  margin-top:24px;
}
.about-image img {
  width:100%;
  height:340px;
  object-fit:cover;
  object-position:78% center;
}
.about-image figcaption {
  font-size:11px;
  color:var(--muted);
  margin-top:8px;
}
.text-link {
  display:inline-flex;
  align-items:center;
  gap:16px;
  font-size:14px;
  font-weight:650;
  margin-top:24px;
}
.text-link:hover {
  color:#0a9d89;
}
.section-heading {
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:22px;
  gap:24px;
}
.section-caption {
  color:var(--muted);
  font-size:14px;
  margin-bottom:8px;
}
.service-row {
  display:grid;
  grid-template-columns:108px 1fr 32px;
  align-items:center;
  border-top:1px solid var(--line);
  padding:28px 32px;
  gap:24px;
  transition:background .2s;
}
.service-row:last-child {
  border-bottom:1px solid var(--line);
}
.service-row:hover {
  background:#eaf1f3;
}
.service-icon {
  width:48px;
  height:48px;
}
.accent-stroke {
  stroke:#17baa3;
}
.service-row h3 {
  font-size:23px;
  font-weight:600;
  margin-bottom:3px;
}
.service-row p {
  color:var(--muted);
  font-size:16px;
}
.service-row>.arrow {
  transition:transform .2s;
}
.service-row:hover>.arrow {
  transform:translateX(5px);
}
.content-note {
  font-size:12px;
  color:#76818e;
  margin-top:20px;
  line-height:1.8;
}
.cta {
  background:var(--navy);
  color:white;
  position:relative;
  overflow:hidden;
}
.cta-inner {
  padding-block:58px;
  position:relative;
}
.cta h2 {
  font-size:38px;
  font-weight:600;
  line-height:1.45;
  position:relative;
}
.cta .button {
  margin-top:24px;
}
.cta:before {
  content:"";
  position:absolute;
  right:0;
  top:0;
  width:55%;
  height:100%;
  background:url("circuit.png") center 54%/cover;
  opacity:.4;
  mask-image:linear-gradient(to right,transparent,#000);
}
.site-footer {
  background:var(--navy);
  color:#c1cbd4;
  border-top:1px solid #ffffff15;
  padding-top:32px;
}
.site-footer .brand-mark {
  width:25px;
  height:34px;
}
.site-footer .brand-type strong {
  font-size:20px;
  color:white;
}
.site-footer .brand-type small {
  font-size:8px;
  color:white;
}
.site-footer .brand {
  gap:14px;
}
.footer-top {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-bottom:30px;
}
.footer-top p {
  font-size:13px;
  margin-top:10px;
}
.footer-top nav {
  display:flex;
  gap:36px;
  font-size:13px;
}
.site-footer a:hover {
  color:var(--teal);
}
.footer-bottom {
  border-top:1px solid #ffffff13;
  display:flex;
  justify-content:space-between;
  padding-block:20px;
  font-size:11px;
  color:#8e9ba9;
}
.page-hero {
  background:var(--navy);
  color:white;
  padding-block:72px;
  position:relative;
  overflow:hidden;
}
.page-hero:before {
  content:"";
  position:absolute;
  right:0;
  top:0;
  width:46%;
  height:100%;
  background:url("circuit.png") center/cover;
  mask-image:linear-gradient(to right,transparent,#000);
  opacity:.5;
}
.page-hero .container {
  position:relative;
}
.page-hero h1 {
  font-size:48px;
  font-weight:600;
  letter-spacing:3px;
}
.page-hero p {
  margin-top:16px;
  color:#b7c4cf;
  font-size:18px;
}
.info-layout {
  display:grid;
  grid-template-columns:1fr 1.3fr;
  gap:80px;
}
.info-list {
  margin:0;
}
.info-list>div {
  display:grid;
  grid-template-columns:145px 1fr;
  gap:18px;
  padding-block:22px;
  border-bottom:1px solid var(--line);
}
.info-list>div:first-child {
  border-top:1px solid var(--line);
}
.info-list dt {
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
}
.info-list dd {
  margin:0;
  font-size:15px;
  line-height:1.8;
  overflow-wrap:anywhere;
}
.notice {
  background:var(--soft);
  padding:14px 18px;
  border-left:2px solid #23bca4;
}
.service-detail {
  display:grid;
  grid-template-columns:1fr 2fr;
  gap:60px;
  border-bottom:1px solid var(--line);
  padding-block:56px;
  scroll-margin-top:24px;
}
.detail-number {
  font-size:64px;
  line-height:1;
  color:#c7d5db;
  letter-spacing:-3px;
  font-weight:300;
}
.service-detail>div {
  position:relative;
  padding-left:80px;
}
.service-detail .service-icon {
  position:absolute;
  left:0;
  top:3px;
}
.service-detail h2 {
  font-size:28px;
  font-weight:600;
  margin-bottom:14px;
}
.service-detail p {
  font-size:16px;
  color:var(--muted);
}
.service-detail .muted {
  margin-top:10px;
}
.scope-text {
  font-size:20px;
  line-height:1.9;
}
.contact-layout {
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:90px;
  padding-block:20px;
}
/* 联系信息隐藏期间使用单列，避免保留空白的第二列。 */
.contact-layout--intro-only {
  grid-template-columns:1fr;
}
.contact-intro .statement {
  margin-top:24px;
}
.contact-intro .button {
  margin-top:30px;
}
.contact-panel {
  background:var(--soft);
  padding:38px 36px;
}
.contact-panel h2 {
  font-size:24px;
  font-weight:600;
  margin-bottom:26px;
}
.contact-panel .info-list>div {
  grid-template-columns:100px 1fr;
}
.contact-panel a {
  text-decoration:underline;
  text-underline-offset:4px;
}
.copy-status {
  font-size:13px;
  color:#0a8d7b;
  min-height:25px;
  margin-top:12px;
}
@media(min-width:1600px) {
  .hero-image {
    object-position:center 53%;
  }
}
@media(max-width:1100px) {
  .container {
    width:calc(100% - 72px);
  }
  .primary-nav {
    gap:30px;
  }
  .hero {
    min-height:530px;
  }
  .hero-image {
    width:115%;
    max-width:none;
    right:-15%;
    object-position:40% center;
  }
  .hero h1 {
    font-size:55px;
  }
  .hero p {
    font-size:19px;
  }
  .about-preview {
    gap:36px;
  }
  .statement {
    font-size:32px;
  }
  .about-image img {
    height:300px;
  }
  .section {
    padding-block:60px;
  }
  .contact-layout {
    gap:45px;
  }
  .info-layout {
    gap:45px;
  }
  .info-list>div {
    grid-template-columns:120px 1fr;
  }
  .service-detail {
    gap:35px;
  }
}
@media(max-width:720px) {
  html {
    scroll-padding-top:78px;
  }
  .container {
    width:calc(100% - 40px);
  }
  .site-header {
    height:76px;
  }
  .brand {
    gap:12px;
  }
  .brand-mark {
    width:27px;
    height:36px;
  }
  .brand-type strong {
    font-size:21px;
  }
  .brand-type small {
    font-size:8px;
  }
  .header-inner {
    flex-wrap:wrap;
  }
  .menu-toggle {
    display:flex;
    position:relative;
    background:transparent;
    border:1px solid var(--line);
    border-radius:3px;
    width:42px;
    height:40px;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:6px;
  }
  .menu-toggle span {
    width:18px;
    height:1.5px;
    background:var(--ink);
    transition:transform .2s;
  }
  .menu-toggle[aria-expanded=true] span:first-child {
    transform:translateY(3.75px) rotate(45deg);
  }
  .menu-toggle[aria-expanded=true] span:last-child {
    transform:translateY(-3.75px) rotate(-45deg);
  }
  .primary-nav {
    display:none;
    position:absolute;
    top:76px;
    left:0;
    right:0;
    background:white;
    box-shadow:0 12px 20px #101e3212;
    height:auto;
    padding:10px 20px 20px;
    gap:0;
    flex-direction:column;
    align-items:stretch;
  }
  .primary-nav.is-open {
    display:flex;
  }
  .primary-nav a {
    padding:15px 5px;
    height:auto;
  }
  .primary-nav a:after {
    bottom:8px;
    right:auto;
    width:30px;
  }
  .hero {
    min-height:640px;
    align-items:flex-start;
  }
  .hero-content {
    padding-top:55px;
    padding-bottom:270px;
  }
  .hero-image {
    width:100%;
    height:70%;
    top:auto;
    bottom:0;
    right:0;
    object-position:65% center;
    mask-image:linear-gradient(to bottom,transparent,#000 36%);
  }
  .hero h1 {
    font-size:clamp(33px,8.6vw,52px);
    line-height:1.4;
    letter-spacing:0;
  }
  .hero p {
    font-size:15px;
    margin-top:20px;
  }
  .hero-actions {
    gap:12px;
    margin-top:26px;
  }
  .button {
    min-width:142px;
    min-height:49px;
    padding:13px 19px;
    font-size:14px;
    gap:12px;
  }
  .section {
    padding-block:46px;
  }
  .section-number {
    font-size:14px;
    gap:18px;
  }
  .section-title {
    font-size:26px;
  }
  .statement {
    font-size:30px;
    margin-top:20px;
  }
  .company-line {
    font-size:18px;
    margin-top:20px;
  }
  .muted {
    font-size:15px;
    margin-top:18px;
  }
  .about-preview {
    grid-template-columns:1fr;
    gap:26px;
  }
  .about-image {
    margin-top:0;
  }
  .about-image img {
    height:240px;
  }
  .section-heading {
    align-items:flex-start;
    flex-direction:column;
    gap:10px;
    margin-bottom:18px;
  }
  .section-caption {
    font-size:13px;
  }
  .service-row {
    grid-template-columns:42px 1fr 20px;
    padding:23px 0;
    gap:16px;
  }
  .service-icon {
    width:38px;
    height:38px;
  }
  .service-row h3 {
    font-size:19px;
  }
  .service-row p {
    font-size:13px;
    line-height:1.7;
    margin-top:6px;
  }
  .service-row .arrow {
    width:20px;
  }
  .content-note {
    font-size:11px;
  }
  .cta-inner {
    padding-block:40px;
  }
  .cta h2 {
    font-size:29px;
  }
  .cta:before {
    width:75%;
    opacity:.2;
  }
  .footer-top {
    align-items:flex-start;
    flex-direction:column;
    gap:27px;
  }
  .footer-top nav {
    gap:22px;
    font-size:12px;
    flex-wrap:wrap;
  }
  .footer-bottom {
    flex-direction:column;
    gap:10px;
    font-size:10px;
  }
  .page-hero {
    padding-block:48px;
  }
  .page-hero h1 {
    font-size:36px;
  }
  .page-hero p {
    font-size:15px;
    max-width:280px;
  }
  .page-hero:before {
    width:70%;
    opacity:.3;
  }
  .info-layout {
    grid-template-columns:1fr;
    gap:30px;
  }
  .info-list>div {
    grid-template-columns:112px 1fr;
    padding-block:19px;
    gap:12px;
  }
  .info-list dd {
    font-size:14px;
  }
  .service-detail {
    grid-template-columns:40px 1fr;
    gap:18px;
    padding-block:35px;
  }
  .detail-number {
    font-size:33px;
    letter-spacing:-1px;
  }
  .service-detail>div {
    padding-left:0;
  }
  .service-detail .service-icon {
    position:static;
    margin-bottom:15px;
  }
  .service-detail h2 {
    font-size:23px;
  }
  .service-detail p {
    font-size:14px;
  }
  .scope-text {
    font-size:18px;
  }
  .contact-layout {
    grid-template-columns:1fr;
    gap:30px;
    padding-block:0;
  }
  .contact-panel {
    padding:26px 22px;
  }
  .contact-panel h2 {
    font-size:22px;
  }
  .desktop-break {
    display:none;
  }
}
/* 无脚本时保留移动端入口；减少动态效果的用户仍可正常浏览。 */
@media(max-width:720px) {
  html.no-js .site-header {
    height:auto;
    min-height:76px;
  }
  html.no-js .header-inner {
    padding-block:16px;
    gap:16px;
  }
  html.no-js .primary-nav {
    position:static;
    display:flex;
    width:100%;
    padding:0;
    box-shadow:none;
    flex-direction:row;
    justify-content:space-between;
  }
  html.no-js .primary-nav a {
    font-size:12px;
  }
  html.no-js .menu-toggle {
    display:none;
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto;
  }
  *,*:before,*:after {
    transition:none!important;
    animation:none!important;
  }
}