:root {
  --ink: #172334;
  --muted: #66788c;
  --line: #dce5ee;
  --soft: #f3f7fa;
  --white: #ffffff;
  --blue: #0b65a3;
  --blue-2: #123f68;
  --green: #56a35a;
  --gold: #d49a37;
  --shadow: 0 24px 70px rgba(17, 37, 58, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--soft);
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    "Noto Sans CJK SC",
    Arial,
    sans-serif;
  line-height: 1.6;
}

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-shell {
  min-height: 100vh;
  overflow: hidden;
  background: var(--soft);
}

.topline {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 8px clamp(18px, 4vw, 68px);
  color: rgba(255, 255, 255, 0.86);
  background: #102f50;
  font-size: 13px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(290px, 1fr) auto minmax(110px, 1fr);
  align-items: center;
  gap: 24px;
  min-height: 82px;
  padding: 12px clamp(18px, 4vw, 68px);
  border-bottom: 1px solid rgba(220, 229, 238, 0.8);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
}

.site-header.is-scrolled {
  box-shadow: 0 14px 34px rgba(17, 37, 58, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand img {
  width: 118px;
  height: 52px;
  object-fit: contain;
}

.brand span {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.brand strong {
  font-size: 17px;
  line-height: 1.2;
  white-space: nowrap;
}

.brand em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.2vw, 30px);
  color: #28435e;
  font-size: 15px;
  white-space: nowrap;
}

.nav a {
  position: relative;
  padding: 8px 0;
}

.nav-item {
  position: relative;
}

.nav-item.is-current > a {
  color: var(--blue);
  font-weight: 900;
}

.nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--blue);
  transition: transform 0.2s ease;
}

.nav a:hover::after {
  transform: scaleX(1);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 20px);
  left: 50%;
  min-width: 190px;
  padding: 10px;
  transform: translateX(-50%) translateY(8px);
  opacity: 0;
  visibility: hidden;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 18px 46px rgba(17, 37, 58, 0.13);
  transition:
    opacity 0.18s ease,
    visibility 0.18s ease,
    transform 0.18s ease;
}

.nav-dropdown::before {
  content: "";
  position: absolute;
  top: -22px;
  right: 0;
  left: 0;
  height: 22px;
}

.nav-dropdown a {
  display: block;
  padding: 10px 12px;
  color: #31506d;
  font-size: 14px;
  white-space: nowrap;
}

.nav-dropdown a::after {
  display: none;
}

.nav-dropdown a:hover {
  color: var(--white);
  background: var(--blue);
}

.nav-item:hover .nav-dropdown {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}

.header-action {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 4px;
  color: var(--white);
  background: var(--blue);
  font-size: 14px;
  font-weight: 800;
}

.menu-toggle {
  display: none;
}

.hero {
  position: relative;
  min-height: calc(100vh - 120px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  background: #0d2742;
}

.hero-stage {
  position: relative;
  min-height: 660px;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.6s ease,
    visibility 0.6s ease;
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
}

.hero-slide img {
  filter: saturate(0.96);
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 31, 53, 0.92) 0%, rgba(8, 31, 53, 0.72) 42%, rgba(8, 31, 53, 0.08) 78%),
    linear-gradient(0deg, rgba(8, 31, 53, 0.46), rgba(8, 31, 53, 0));
}

.hero-copy {
  position: absolute;
  left: clamp(22px, 5vw, 86px);
  bottom: clamp(64px, 11vh, 128px);
  width: min(790px, calc(100% - 44px));
  color: var(--white);
}

.hero-copy p,
.section-head p,
.service-band p,
.contact-copy p {
  margin: 0 0 14px;
  color: #93d6ff;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0 0 24px;
  font-size: clamp(42px, 5.4vw, 76px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-copy span {
  display: block;
  max-width: 740px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(17px, 1.65vw, 21px);
  line-height: 1.9;
}

.hero-panel {
  position: relative;
  z-index: 2;
  display: grid;
  align-content: center;
  gap: 24px;
  padding: 42px;
  color: var(--white);
  background: linear-gradient(180deg, #123f68, #09243e);
}

.hero-brand-card {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
}

.hero-brand-card img {
  width: 146px;
  height: 64px;
  object-fit: contain;
  margin-bottom: 20px;
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.18));
}

.hero-brand-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.hero-controls {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.hero-controls button {
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
}

.hero-controls button.is-active {
  color: var(--white);
  background: var(--green);
}

.hero-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  color: #08233d;
  background: var(--white);
  font-weight: 900;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.metrics div {
  min-height: 150px;
  display: grid;
  align-content: center;
  gap: 10px;
  padding: 28px clamp(20px, 4vw, 58px);
  border-right: 1px solid var(--line);
}

.metrics div:last-child {
  border-right: 0;
}

.metrics strong {
  color: var(--blue-2);
  font-size: clamp(34px, 3.8vw, 56px);
  line-height: 1;
}

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

.section {
  padding: 88px clamp(18px, 4vw, 68px);
}

.section-head {
  max-width: 960px;
  margin-bottom: 38px;
}

.section-head.row {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 0.52fr);
  gap: clamp(26px, 5vw, 72px);
  align-items: end;
}

.section-head h2,
.service-band h2,
.contact-copy h2 {
  margin: 0;
  font-size: clamp(30px, 3.4vw, 50px);
  line-height: 1.16;
  letter-spacing: 0;
}

.section-head span,
.service-band em,
.contact-copy span,
.product-grid p,
.case-grid p,
.insight-grid p {
  color: var(--muted);
  line-height: 1.85;
}

.section-head > span,
.section-head.row > span {
  display: block;
  margin-top: 16px;
}

.solution-section {
  background: var(--soft);
}

.solution-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 0;
  min-height: 540px;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 18px 48px rgba(17, 37, 58, 0.08);
}

.solution-tabs {
  display: grid;
  align-content: stretch;
  border-right: 1px solid var(--line);
  background: #edf3f8;
}

.solution-tabs button {
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 0 24px;
  text-align: left;
  color: #31506d;
  background: transparent;
  font-size: 18px;
  font-weight: 900;
  cursor: pointer;
}

.solution-tabs button.is-active {
  color: var(--white);
  background: var(--blue);
}

.solution-main {
  position: relative;
  min-height: 540px;
}

.solution-card {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: minmax(320px, 0.85fr) minmax(0, 1fr);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.25s ease,
    visibility 0.25s ease;
}

.solution-card.is-active {
  opacity: 1;
  visibility: visible;
}

.solution-card > div {
  display: grid;
  align-content: center;
  padding: clamp(30px, 5vw, 64px);
}

.solution-card small,
.case-grid small {
  color: var(--green);
  font-weight: 900;
}

.solution-card h3,
.product-grid h3,
.case-grid h3,
.insight-grid h3 {
  margin: 12px 0 12px;
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1.28;
}

.solution-card p {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.9;
}

.solution-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.solution-card li {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: #31506d;
  background: #f7fafc;
  font-size: 14px;
  font-weight: 800;
}

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

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

.product-grid article {
  min-height: 460px;
  display: grid;
  grid-template-rows: 1fr auto;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--white);
}

.product-grid article img {
  min-height: 250px;
}

.product-grid article div {
  padding: 24px;
}

.product-grid h3,
.case-grid h3,
.insight-grid h3 {
  margin-top: 0;
}

.product-grid p {
  margin-bottom: 0;
}

.case-section {
  color: var(--white);
  background: linear-gradient(135deg, #102f50, #071e34);
}

.case-section .section-head p {
  color: #aee4ff;
}

.case-section .section-head span {
  color: rgba(255, 255, 255, 0.72);
}

.case-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) repeat(2, minmax(0, 0.75fr));
  grid-auto-rows: 270px;
  gap: 18px;
}

.case-grid article {
  position: relative;
  overflow: hidden;
  min-height: 270px;
  background: #09243e;
}

.case-grid article::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(5, 22, 39, 0.9), rgba(5, 22, 39, 0.18) 70%);
}

.case-grid article > div {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  padding: 26px;
}

.case-grid .case-large {
  grid-row: span 2;
}

.case-grid .case-large h3 {
  font-size: clamp(28px, 3vw, 42px);
}

.case-grid p {
  color: rgba(255, 255, 255, 0.76);
}

.service-band {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(30px, 5vw, 72px);
  padding: 90px clamp(18px, 4vw, 68px);
  background: #eaf2f8;
}

.service-band ol {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.service-band li {
  min-height: 250px;
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 24px;
  background: var(--white);
}

.service-band span {
  color: var(--green);
  font-weight: 900;
}

.service-band strong {
  font-size: 20px;
}

.service-band em {
  font-size: 14px;
  font-style: normal;
}

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

.insight-grid article {
  min-height: 280px;
  padding: 28px;
  border: 1px solid var(--line);
  background: #f9fbfd;
}

.insight-grid time {
  display: block;
  margin-bottom: 46px;
  color: var(--gold);
  font-weight: 900;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(380px, 0.62fr);
  gap: clamp(32px, 6vw, 90px);
  align-items: start;
  padding: 92px clamp(18px, 4vw, 68px);
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(13, 50, 83, 0.98), rgba(13, 50, 83, 0.84)),
    url("assets/case-binhai.jpg") center / cover;
}

.contact-copy p {
  color: #aee4ff;
}

.contact-copy span {
  display: block;
  max-width: 760px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.78);
}

.contact-copy dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  max-width: 600px;
  margin: 34px 0 0;
}

.contact-copy dl div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
}

.contact-copy dt {
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

.contact-copy dd {
  margin: 8px 0 0;
  font-weight: 900;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 13px 14px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.13);
  outline: none;
}

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

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.52);
}

.contact-form button {
  min-height: 48px;
  border: 0;
  color: #0b2d4d;
  background: var(--white);
  font-weight: 900;
  cursor: pointer;
}

.footer {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 34px clamp(18px, 4vw, 68px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: var(--white);
}

.footer img {
  width: 120px;
  height: 54px;
  object-fit: contain;
  margin-bottom: 10px;
}

.footer p {
  margin: 0 0 4px;
  color: var(--ink);
  font-weight: 900;
}

.footer span,
.footer small {
  font-size: 13px;
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  justify-content: center;
}

.page-hero {
  position: relative;
  min-height: 360px;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
  background: #102f50;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 31, 53, 0.92), rgba(8, 31, 53, 0.48) 70%),
    linear-gradient(0deg, rgba(8, 31, 53, 0.7), transparent 65%);
}

.page-hero img {
  position: absolute;
  inset: 0;
}

.page-hero > div {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 0 0 62px;
}

.page-hero p,
.kicker {
  margin: 0 0 12px;
  color: #93d6ff;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.page-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.08;
}

.page-hero span {
  color: rgba(255, 255, 255, 0.76);
}

.page-section {
  padding: 76px clamp(18px, 4vw, 68px);
}

.page-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 34px;
  width: min(1240px, 100%);
  margin: 0 auto;
}

.side-nav {
  align-self: start;
  border: 1px solid var(--line);
  background: var(--white);
}

.side-nav a {
  display: block;
  padding: 17px 20px;
  border-bottom: 1px solid var(--line);
  color: #31506d;
  font-weight: 800;
}

.side-nav a:last-child {
  border-bottom: 0;
}

.side-nav a.is-active,
.side-nav a:hover {
  color: var(--white);
  background: var(--blue);
}

.rich-content {
  min-width: 0;
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid var(--line);
  background: var(--white);
}

.rich-content h2 {
  margin: 0 0 18px;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.2;
}

.rich-content h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.rich-content p,
.rich-content li {
  color: var(--muted);
  line-height: 1.9;
}

.rich-content ul {
  padding-left: 1.2em;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 30px 0 38px;
  border: 1px solid var(--line);
  background: var(--line);
}

.fact-grid div {
  padding: 22px;
  background: #f8fbfd;
}

.fact-grid strong {
  display: block;
  color: var(--blue-2);
  font-size: 34px;
  line-height: 1;
}

.fact-grid span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

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

.page-card {
  display: grid;
  grid-template-rows: 220px auto;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #f8fbfd;
}

.page-card div {
  padding: 22px;
}

.page-card small,
.news-list time,
.process-list span {
  color: var(--green);
  font-weight: 900;
}

.page-card h3 {
  margin: 8px 0 10px;
  color: var(--ink);
}

.page-card p {
  margin: 0;
}

.detail-image {
  height: min(42vw, 430px);
  min-height: 280px;
  margin: 26px 0 32px;
  overflow: hidden;
}

.page-action {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  margin-top: 18px;
  padding: 0 22px;
  color: var(--white);
  background: var(--blue);
  font-weight: 900;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  border: 1px solid var(--line);
  background: var(--line);
}

.process-list div {
  min-height: 230px;
  padding: 22px;
  background: #f8fbfd;
}

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

.news-list a {
  display: grid;
  gap: 8px;
  padding: 24px;
  border: 1px solid var(--line);
  background: #f8fbfd;
}

.news-list h3 {
  margin: 0;
  color: var(--ink);
}

.news-list p {
  margin: 0;
}

.contact-page-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 0.65fr);
  gap: 28px;
  align-items: start;
}

.contact-form.light {
  border: 1px solid var(--line);
  background: #f8fbfd;
  backdrop-filter: none;
}

.contact-form.light label {
  color: #31506d;
}

.contact-form.light input,
.contact-form.light textarea {
  color: var(--ink);
  border-color: var(--line);
  background: var(--white);
}

.contact-form.light input::placeholder,
.contact-form.light textarea::placeholder {
  color: #9aa9b7;
}

.contact-form.light button {
  color: var(--white);
  background: var(--blue);
}

@media (max-width: 1200px) {
  .site-header {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .nav,
  .header-action {
    display: none;
  }

  .menu-toggle {
    display: grid;
    width: 42px;
    height: 42px;
    gap: 6px;
    place-content: center;
    border: 1px solid var(--line);
    background: var(--white);
    cursor: pointer;
  }

  .menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--ink);
  }

  .site-header.menu-open .nav {
    position: fixed;
    top: 120px;
    left: 0;
    display: grid;
    width: 100%;
    gap: 0;
    padding: 8px 22px 18px;
    background: var(--white);
    box-shadow: 0 18px 36px rgba(17, 37, 58, 0.12);
  }

  .site-header.menu-open .nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }

  .site-header.menu-open .nav-item {
    border-bottom: 1px solid var(--line);
  }

  .site-header.menu-open .nav-item > a {
    display: block;
    border-bottom: 0;
  }

  .site-header.menu-open .nav-dropdown {
    position: static;
    display: grid;
    min-width: 0;
    padding: 0 0 10px 14px;
    transform: none;
    opacity: 1;
    visibility: visible;
    border: 0;
    box-shadow: none;
  }

  .site-header.menu-open .nav-dropdown a {
    padding: 8px 0;
    border-bottom: 0;
    font-size: 13px;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
  }

  .hero-brand-card {
    display: none;
  }

  .section-head.row,
  .service-band,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .solution-layout {
    grid-template-columns: 1fr;
  }

  .solution-tabs {
    grid-template-columns: repeat(5, 1fr);
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .solution-tabs button {
    min-height: 74px;
    padding: 0 14px;
    text-align: center;
    font-size: 15px;
  }

  .product-grid,
  .insight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-band ol {
    grid-template-columns: repeat(5, minmax(180px, 1fr));
    overflow-x: auto;
  }

  .footer {
    grid-template-columns: 1fr;
  }

  .footer nav {
    justify-content: flex-start;
  }

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

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

  .side-nav a {
    border-right: 1px solid var(--line);
  }

  .page-card-grid,
  .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .topline {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }

  .site-header {
    min-height: 72px;
  }

  .brand img {
    width: 88px;
    height: 40px;
  }

  .brand strong {
    max-width: 190px;
    white-space: normal;
    font-size: 14px;
  }

  .brand em {
    display: none;
  }

  .site-header.menu-open .nav {
    top: 110px;
  }

  .hero-stage {
    min-height: 620px;
  }

  .hero-copy {
    bottom: 54px;
  }

  .hero-copy h1 {
    font-size: 40px;
  }

  .hero-copy span {
    font-size: 16px;
  }

  .hero-panel {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .metrics,
  .product-grid,
  .insight-grid,
  .contact-copy dl {
    grid-template-columns: 1fr;
  }

  .metrics div {
    min-height: 116px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metrics div:last-child {
    border-bottom: 0;
  }

  .section,
  .service-band,
  .contact-section {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .solution-tabs {
    grid-template-columns: 1fr;
  }

  .solution-tabs button {
    min-height: 54px;
    text-align: left;
  }

  .solution-main,
  .solution-layout {
    min-height: auto;
  }

  .solution-card {
    position: relative;
    display: none;
    grid-template-columns: 1fr;
  }

  .solution-card.is-active {
    display: grid;
  }

  .solution-card img {
    min-height: 260px;
  }

  .case-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }

  .case-grid .case-large {
    grid-row: auto;
  }

  .case-grid article {
    min-height: 310px;
  }

  .contact-section {
    grid-template-columns: 1fr;
  }

  .page-hero {
    min-height: 300px;
  }

  .page-section {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .rich-content {
    padding: 24px;
  }

  .side-nav,
  .page-card-grid,
  .fact-grid,
  .process-list {
    grid-template-columns: 1fr;
  }

  .side-nav a {
    border-right: 0;
  }

  .page-card {
    grid-template-rows: 200px auto;
  }

  .detail-image {
    min-height: 220px;
  }
}