:root {
  --ink: #082735;
  --ink-deep: #051d27;
  --ink-soft: #123c4d;
  --paper: #f6f4ef;
  --paper-soft: #eaf1f1;
  --white: #ffffff;
  --sky: #87cedf;
  --blue: #217b9b;
  --coral: #c94f35;
  --coral-dark: #a83c28;
  --text: #183643;
  --muted: #596b73;
  --line: rgba(8, 39, 53, 0.14);
  --line-light: rgba(255, 255, 255, 0.16);
  --shadow: 0 26px 70px rgba(5, 29, 39, 0.14);
  --header-height: 78px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--text);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open,
body.dialog-open {
  overflow: hidden;
}

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

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

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

button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button {
  color: inherit;
}

h1,
h2,
h3,
p,
figure,
ul,
ol,
dl {
  margin-top: 0;
}

h1,
h2,
h3,
strong {
  font-weight: 650;
}

h1,
h2,
h3 {
  line-height: 1.12;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 4px;
}

.shell {
  width: min(1440px, calc(100% - clamp(40px, 7vw, 120px)));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 5000;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  background: var(--white);
  color: var(--ink);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  padding: 12px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.2;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

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

.button-primary {
  background: var(--ink);
  color: var(--white);
}

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

.button-outline {
  border-color: rgba(8, 39, 53, 0.36);
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
}

.button-outline:hover {
  border-color: var(--ink);
  background: var(--white);
}

.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid rgba(8, 39, 53, 0.1);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(18px);
}

.header-shell {
  display: grid;
  height: 100%;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(20px, 2.6vw, 42px);
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand img {
  width: clamp(168px, 12vw, 202px);
  height: auto;
}

.desktop-nav {
  display: flex;
  min-width: 0;
  align-items: stretch;
  justify-content: flex-end;
  gap: clamp(14px, 1.3vw, 24px);
}

.desktop-nav > a,
.desktop-nav summary {
  position: relative;
  display: flex;
  min-height: 54px;
  align-items: center;
  color: #294653;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  list-style: none;
  white-space: nowrap;
}

.desktop-nav summary::-webkit-details-marker {
  display: none;
}

.desktop-nav > a::after,
.desktop-nav summary::after {
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  height: 2px;
  background: var(--coral);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.desktop-nav > a:hover::after,
.desktop-nav > a:focus-visible::after,
.desktop-nav > a[aria-current="page"]::after,
.nav-group:hover summary::after,
.nav-group[open] summary::after,
.nav-group[data-current="true"] summary::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-group {
  position: relative;
}

.nav-panel {
  position: absolute;
  top: calc(100% - 1px);
  left: 50%;
  display: grid;
  width: 258px;
  padding: 12px;
  border-top: 3px solid var(--coral);
  background: var(--white);
  box-shadow: var(--shadow);
  transform: translateX(-50%);
}

.nav-panel a {
  display: flex;
  min-height: 46px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 8px 10px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}

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

.nav-panel a:hover,
.nav-panel a:focus-visible {
  background: var(--paper-soft);
  color: var(--ink);
}

.header-phone {
  display: grid;
  min-height: 50px;
  align-content: center;
  border-left: 1px solid var(--line);
  padding-left: clamp(18px, 1.8vw, 30px);
  line-height: 1.15;
}

.header-phone span {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.header-phone strong {
  color: var(--ink);
  font-size: 15px;
  letter-spacing: 0.025em;
}

.menu-toggle,
.mobile-menu {
  display: none;
}

.page-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(110deg, #f7f5ef 0 52%, #e7efef 52% 100%);
}

.page-hero::after {
  position: absolute;
  right: -8vw;
  bottom: -28%;
  width: 42vw;
  height: 70%;
  border-top: 1px solid rgba(33, 123, 155, 0.24);
  border-bottom: 1px solid rgba(33, 123, 155, 0.18);
  content: "";
  transform: rotate(-8deg);
}

.page-hero-text {
  background: #f7f5ef;
}

.page-hero-text::after {
  display: none;
}

.breadcrumb {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 28px;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumb a:hover {
  color: var(--ink);
}

.page-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 520px;
  grid-template-columns: minmax(0, 1fr) minmax(400px, 0.82fr);
  align-items: center;
  gap: clamp(38px, 5vw, 80px);
  padding-block: clamp(56px, 6vw, 88px);
}

.page-hero-grid-text {
  min-height: 340px;
  grid-template-columns: minmax(0, 880px);
  padding-block: 48px 64px;
}

.page-hero-grid-text .page-hero-copy {
  max-width: 880px;
}

.page-hero-copy {
  max-width: 720px;
}

.page-hero h1 {
  max-width: 14ch;
  margin-bottom: 28px;
  color: var(--ink);
  font-size: clamp(50px, 4.7vw, 76px);
  letter-spacing: -0.04em;
}

.page-hero-copy > p {
  max-width: 650px;
  margin-bottom: 32px;
  color: #415d68;
  font-size: clamp(17px, 1.25vw, 20px);
  line-height: 1.85;
}

.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-hero-media {
  position: relative;
  display: grid;
  width: 100%;
  max-width: 640px;
  aspect-ratio: 8 / 5;
  justify-self: end;
  place-items: center;
  overflow: hidden;
  margin: 0;
  background: linear-gradient(135deg, #e9f1f1, #d8e9ec);
  box-shadow: 0 28px 70px rgba(5, 29, 39, 0.16);
}

.page-hero-media::before {
  position: absolute;
  z-index: 1;
  inset: 0;
  border: 1px solid rgba(33, 123, 155, 0.2);
  content: "";
  pointer-events: none;
}

.page-hero-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  object-fit: contain;
  object-position: center;
}

.page-hero-media-photo img {
  object-fit: cover;
}

.page-hero-media-diagram {
  max-width: 560px;
  padding: clamp(20px, 3vw, 42px);
}

.page-hero-media-diagram img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.page-hero-media-compact img {
  width: min(100%, 474px);
  height: min(100%, 360px);
  margin: auto;
}

.page-hero-media figcaption {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  min-width: 156px;
  padding: 15px 20px;
  background: var(--ink);
  color: var(--white);
  font-size: 13px;
  font-weight: 650;
  text-align: center;
}

.page-section {
  padding-block: clamp(88px, 8vw, 132px);
}

.page-section-tint {
  background: var(--paper-soft);
}

.section-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.35fr);
  gap: clamp(54px, 8vw, 138px);
}

.section-heading {
  max-width: 520px;
}

.section-heading-wide {
  max-width: 780px;
  margin-bottom: 48px;
}

.section-heading h2,
.focus-layout h2,
.split-heading h2,
.faq-layout h2,
.case-detail-layout h2,
.page-contact h2 {
  margin-bottom: 22px;
  color: var(--ink);
  font-size: clamp(38px, 4vw, 62px);
}

.section-heading p,
.focus-layout p,
.split-heading > div > p,
.section-heading-wide p {
  max-width: 65ch;
  color: var(--muted);
  font-size: 17px;
}

.scene-list,
.topic-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.scene-list article,
.topic-list article {
  min-height: 186px;
  border-top: 1px solid var(--line);
  padding: 26px 32px 22px 0;
}

.scene-list article:nth-child(even),
.topic-list article:nth-child(even) {
  border-left: 1px solid var(--line);
  padding-left: 32px;
}

.scene-list h3,
.topic-list h3 {
  margin-bottom: 14px;
  color: var(--ink);
  font-size: 23px;
}

.scene-list p,
.topic-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.focus-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(52px, 9vw, 150px);
}

.focus-layout ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.focus-layout li {
  position: relative;
  border-top: 1px solid rgba(8, 39, 53, 0.22);
  padding: 24px 52px 24px 0;
  color: var(--ink);
  font-size: 21px;
  font-weight: 650;
}

.focus-layout li::after {
  position: absolute;
  top: 50%;
  right: 4px;
  width: 20px;
  height: 20px;
  border-top: 1px solid var(--blue);
  border-right: 1px solid var(--blue);
  content: "";
  transform: translateY(-50%) rotate(45deg);
}

.process-section {
  background: var(--ink);
  color: var(--white);
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(60px, 9vw, 150px);
}

.process-section h2 {
  color: var(--white);
}

.process-section .split-heading > div > p {
  color: rgba(255, 255, 255, 0.7);
}

.process-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-steps li {
  display: grid;
  min-height: 82px;
  grid-template-columns: 64px 1fr;
  align-items: center;
  border-top: 1px solid var(--line-light);
}

.process-steps span {
  color: var(--sky);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.process-steps strong {
  font-size: 20px;
}

.text-link-list,
.service-directory {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  margin-bottom: 52px;
}

.text-link-list a,
.service-directory a {
  display: flex;
  min-height: 86px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  padding-right: 28px;
}

.text-link-list a:nth-child(even),
.service-directory a:nth-child(even) {
  border-left: 1px solid var(--line);
  padding-left: 28px;
}

.text-link-list span,
.service-directory span {
  color: var(--ink);
  font-size: 19px;
  font-weight: 650;
}

.text-link-list small,
.service-directory small {
  color: var(--blue);
  font-size: 12px;
  font-weight: 650;
}

.text-link-list a:hover span,
.service-directory a:hover span {
  color: var(--coral-dark);
}

.related-cases {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.related-cases a {
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
}

.related-case-media {
  position: relative;
  display: grid;
  aspect-ratio: 4 / 3;
  place-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #edf3f3, #dcebed);
}

.related-cases img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 1;
  transition: transform 420ms cubic-bezier(0.16, 1, 0.3, 1);
}

.related-cases a:hover img {
  transform: scale(1.018);
}

.related-case-copy {
  display: grid;
  align-content: start;
  min-height: 150px;
  padding: 24px 26px 22px;
}

.related-cases small {
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.related-cases strong {
  font-size: 20px;
  line-height: 1.35;
}

.related-cases i {
  margin-top: 15px;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.case-detail-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(56px, 9vw, 148px);
}

.case-detail-layout > div > p {
  max-width: 58ch;
  color: var(--muted);
  font-size: 17px;
}

.case-detail-layout dl {
  margin: 0;
}

.case-detail-layout dl div {
  display: grid;
  min-height: 86px;
  grid-template-columns: 150px 1fr;
  align-items: center;
  border-top: 1px solid var(--line);
}

.case-detail-layout dt {
  color: var(--muted);
  font-size: 13px;
}

.case-detail-layout dd {
  margin: 0;
  color: var(--ink);
  font-size: 18px;
  font-weight: 650;
}

.case-detail-layout dd a {
  color: var(--blue);
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.74fr) minmax(0, 1.26fr);
  gap: clamp(54px, 9vw, 150px);
}

.faq-layout details {
  border-top: 1px solid rgba(8, 39, 53, 0.22);
}

.faq-layout summary {
  position: relative;
  padding: 24px 48px 24px 0;
  color: var(--ink);
  cursor: pointer;
  font-size: 19px;
  font-weight: 650;
  list-style: none;
}

.faq-layout summary::-webkit-details-marker {
  display: none;
}

.faq-layout summary::after {
  position: absolute;
  top: 22px;
  right: 4px;
  content: "+";
  font-size: 24px;
  font-weight: 400;
}

.faq-layout details[open] summary::after {
  content: "−";
}

.faq-layout details p {
  max-width: 65ch;
  padding: 0 46px 24px 0;
  color: var(--muted);
}

.fact-strip {
  background: var(--coral);
  color: var(--white);
}

.fact-strip .shell {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.fact-strip .shell > div {
  display: grid;
  min-height: 150px;
  place-content: center;
  border-right: 1px solid rgba(255, 255, 255, 0.26);
  text-align: center;
}

.fact-strip .shell > div:first-child {
  border-left: 1px solid rgba(255, 255, 255, 0.26);
}

.fact-strip strong {
  font-size: clamp(32px, 4vw, 52px);
}

.fact-strip span {
  font-size: 13px;
}

.about-logos {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-logos li {
  display: grid;
  min-height: 128px;
  place-items: center;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.6);
  padding: 22px;
}

.about-logos li:nth-child(-n+5) {
  border-top: 1px solid var(--line);
}

.about-logos li:nth-child(5n+1) {
  border-left: 1px solid var(--line);
}

.about-logos img {
  max-width: 150px;
  max-height: 58px;
  object-fit: contain;
}

.about-client-name {
  color: #b51e2e;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-contact {
  padding-block: clamp(88px, 8vw, 126px);
  background: #d7e7e8;
}

.page-contact .shell {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(54px, 9vw, 150px);
  align-items: end;
}

.page-contact h2 {
  max-width: 14ch;
}

.page-contact p {
  max-width: 60ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
}

.page-contact .shell > div:last-child {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-contact a,
.page-contact button {
  display: grid;
  min-height: 150px;
  align-content: center;
  border: 0;
  padding: 28px;
  cursor: pointer;
  text-align: left;
}

.page-contact a {
  background: var(--ink);
  color: var(--white);
}

.page-contact button {
  background: var(--coral);
  color: var(--white);
}

.page-contact span {
  margin-bottom: 8px;
  font-size: 13px;
}

.page-contact strong {
  font-size: 20px;
  line-height: 1.4;
}

.site-footer {
  background: var(--ink-deep);
  color: var(--white);
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  align-items: end;
  gap: 60px;
  padding-block: 68px 48px;
}

.footer-brand img {
  width: 190px;
  height: auto;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.65);
  font-size: 13px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px 28px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.74);
  font-size: 14px;
}

.footer-nav a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  min-height: 92px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line-light);
}

.footer-bottom p {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

.footer-bottom a {
  font-size: 18px;
  font-weight: 650;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 10px 20px;
}

.footer-bottom .icp-link {
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  font-weight: 500;
}

.footer-bottom .icp-link:hover {
  color: var(--white);
}

.mobile-contact-bar {
  display: none;
}

.wechat-dialog {
  width: min(460px, calc(100vw - 32px));
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
}

.wechat-dialog::backdrop {
  background: rgba(5, 29, 39, 0.72);
  backdrop-filter: blur(5px);
}

.wechat-dialog-card {
  position: relative;
  display: grid;
  place-items: center;
  background: var(--white);
  padding: 42px 36px 34px;
  box-shadow: var(--shadow);
  text-align: center;
}

.dialog-close {
  position: absolute;
  top: 10px;
  right: 12px;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 28px;
}

.wechat-dialog-card > p {
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 650;
}

.wechat-dialog-card h2 {
  margin-bottom: 24px;
  color: var(--ink);
  font-size: 28px;
}

.wechat-dialog-card img {
  width: min(280px, 68vw);
  height: auto;
}

.wechat-dialog-card > span {
  max-width: 280px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 1180px) {
  .desktop-nav {
    gap: 13px;
  }

  .desktop-nav > a,
  .desktop-nav summary {
    font-size: 13px;
  }

  .header-phone span {
    display: none;
  }
}

@media (max-width: 980px) {
  :root {
    --header-height: 70px;
  }

  .header-shell {
    grid-template-columns: 1fr auto;
  }

  .desktop-nav,
  .header-phone {
    display: none;
  }

  .brand img {
    width: 170px;
  }

  .menu-toggle {
    position: relative;
    display: flex;
    min-width: 78px;
    min-height: 48px;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    border: 0;
    background: transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 650;
  }

  .menu-toggle i,
  .menu-toggle i::after {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--ink);
    content: "";
    transition: transform 180ms ease;
  }

  .menu-toggle i::after {
    transform: translateY(7px);
  }

  .menu-toggle[aria-expanded="true"] i {
    transform: translateY(3px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] i::after {
    transform: rotate(-90deg);
  }

  .mobile-menu {
    position: fixed;
    z-index: 999;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: grid;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    overscroll-behavior: contain;
    border-top: 1px solid var(--line);
    background: var(--white);
    padding: 14px max(24px, calc((100vw - 880px) / 2)) 28px;
    box-shadow: 0 24px 60px rgba(5, 29, 39, 0.2);
  }

  .mobile-menu[hidden] {
    display: none;
  }

  .mobile-menu > a,
  .mobile-menu summary {
    display: flex;
    min-height: 52px;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--line);
    cursor: pointer;
    font-size: 16px;
    font-weight: 650;
    list-style: none;
  }

  .mobile-menu summary::-webkit-details-marker {
    display: none;
  }

  .mobile-menu summary::after {
    content: "+";
    font-size: 20px;
  }

  .mobile-menu details[open] summary::after {
    content: "−";
  }

  .mobile-menu details div {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-bottom: 1px solid var(--line);
    padding: 8px 0 14px 16px;
  }

  .mobile-menu details a {
    display: flex;
    min-height: 44px;
    align-items: center;
    color: var(--muted);
    font-size: 14px;
  }

  .mobile-menu .mobile-menu-phone {
    justify-content: center;
    margin-top: 14px;
    border: 0;
    background: var(--coral);
    color: var(--white);
  }

  .page-hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .page-hero-grid-text {
    min-height: 340px;
  }

  .page-hero-copy {
    max-width: 760px;
  }

  .page-hero-media {
    max-width: 620px;
    justify-self: start;
  }

  .section-layout,
  .focus-layout,
  .split-heading,
  .case-detail-layout,
  .faq-layout,
  .page-contact .shell {
    grid-template-columns: 1fr;
    gap: 46px;
  }

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

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

  .about-logos li,
  .about-logos li:nth-child(-n+5),
  .about-logos li:nth-child(5n+1) {
    border: 0;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 680px) {
  :root {
    --header-height: 68px;
  }

  body {
    padding-bottom: calc(62px + env(safe-area-inset-bottom));
    font-size: 15px;
  }

  .shell {
    width: calc(100% - 32px);
  }

  .brand img {
    width: 148px;
  }

  .menu-toggle {
    min-width: 68px;
  }

  .breadcrumb {
    gap: 7px;
    padding-top: 22px;
    font-size: 12px;
  }

  .page-hero {
    background: linear-gradient(180deg, #f7f5ef 0 58%, #e7efef 58% 100%);
  }

  .page-hero-grid {
    min-height: auto;
    gap: 32px;
    padding-block: 40px 56px;
  }

  .page-hero-grid-text {
    min-height: 300px;
    gap: 0;
  }

  .page-hero h1 {
    font-size: clamp(40px, 12vw, 54px);
  }

  .page-hero-copy > p {
    font-size: 16px;
  }

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

  .page-hero-actions .button {
    width: 100%;
  }

  .page-hero-media::before {
    inset: 0;
  }

  .page-hero-media {
    width: 100%;
    aspect-ratio: 4 / 3;
  }

  .page-hero-media-diagram {
    padding: 20px;
  }

  .page-section,
  .page-contact {
    padding-block: 72px;
  }

  .section-heading h2,
  .focus-layout h2,
  .split-heading h2,
  .faq-layout h2,
  .case-detail-layout h2,
  .page-contact h2 {
    font-size: 38px;
  }

  .scene-list,
  .topic-list,
  .text-link-list,
  .service-directory,
  .related-cases,
  .page-contact .shell > div:last-child {
    grid-template-columns: 1fr;
  }

  .scene-list article,
  .topic-list article,
  .scene-list article:nth-child(even),
  .topic-list article:nth-child(even) {
    min-height: auto;
    border-left: 0;
    padding: 24px 0;
  }

  .text-link-list a,
  .service-directory a,
  .text-link-list a:nth-child(even),
  .service-directory a:nth-child(even) {
    border-left: 0;
    padding: 0;
  }

  .related-case-copy {
    min-height: auto;
    padding: 20px;
  }

  .case-detail-layout dl div {
    grid-template-columns: 110px 1fr;
  }

  .fact-strip .shell {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .fact-strip .shell > div,
  .fact-strip .shell > div:first-child {
    min-height: 116px;
    border: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.26);
    border-bottom: 1px solid rgba(255, 255, 255, 0.26);
  }

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

  .page-contact a,
  .page-contact button {
    min-height: 126px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-block: 50px 34px;
  }

  .footer-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    justify-content: start;
    gap: 14px 24px;
  }

  .footer-bottom {
    min-height: 118px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }

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

  .mobile-contact-bar {
    position: fixed;
    z-index: 1200;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    min-height: calc(62px + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: var(--white);
    box-shadow: 0 -8px 28px rgba(5, 29, 39, 0.16);
  }

  .mobile-contact-bar > * {
    display: grid;
    min-height: 62px;
    place-items: center;
    border: 0;
    background: var(--ink);
    color: var(--white);
    cursor: pointer;
    font-size: 15px;
    font-weight: 650;
  }

  .mobile-contact-bar > *:last-child {
    background: var(--coral);
  }

  .wechat-dialog-card {
    padding: 34px 24px 28px;
  }
}

@media (max-width: 360px) {
  .shell {
    width: calc(100% - 24px);
  }

  .brand img {
    width: 136px;
  }

  .menu-toggle span {
    display: none;
  }

  .menu-toggle {
    min-width: 48px;
  }

  .mobile-menu details div {
    grid-template-columns: 1fr;
  }

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

  .page-hero figcaption {
    min-width: 132px;
    padding: 12px 16px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}