:root {
  --ink: #172033;
  --ink-soft: #4a5668;
  --paper: #ffffff;
  --paper-soft: #f5f7f8;
  --line: #dfe6ea;
  --teal: #08756f;
  --teal-dark: #075c58;
  --amber: #c77b19;
  --coral: #cf5f4b;
  --green-soft: #e6f3f1;
  --shadow: 0 18px 50px rgba(23, 32, 51, 0.12);
  --shadow-soft: 0 8px 24px rgba(23, 32, 51, 0.08);
  --container: 1180px;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body.is-locked {
  overflow: hidden;
}

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

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

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

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-140%);
  transition: transform 160ms ease;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  color: var(--paper);
  background: rgba(16, 24, 38, 0.24);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(18px);
  transition:
    background 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease;
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 24px rgba(23, 32, 51, 0.08);
  border-bottom-color: rgba(223, 230, 234, 0.9);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.brand-text,
.footer-brand span:last-child {
  font-size: 1.05rem;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  color: var(--paper);
  background: linear-gradient(135deg, var(--teal), var(--amber));
  box-shadow: 0 10px 24px rgba(8, 117, 111, 0.26);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.site-nav a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 8px 13px;
  border-radius: 8px;
  font-size: 0.95rem;
  color: currentColor;
  opacity: 0.92;
  transition:
    background 160ms ease,
    opacity 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  opacity: 1;
}

.site-header.is-scrolled .site-nav a:hover,
.site-header.is-scrolled .site-nav a:focus-visible {
  background: var(--green-soft);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ghost-link,
.button,
.icon-button {
  border: 0;
  cursor: pointer;
}

.ghost-link {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  color: currentColor;
  font-weight: 600;
}

.admin-entry {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 11px;
  border: 1px solid rgba(19, 120, 209, 0.18);
  border-radius: 8px;
  color: #0c4f99;
  font-size: 0.9rem;
  font-weight: 700;
  background: rgba(231, 244, 255, 0.82);
  transition:
    background 160ms ease,
    border-color 160ms ease,
    transform 160ms ease;
}

.admin-entry:hover,
.admin-entry:focus-visible {
  border-color: rgba(19, 120, 209, 0.38);
  background: #fff;
  transform: translateY(-1px);
}

.site-header.is-scrolled .ghost-link {
  background: var(--green-soft);
  color: var(--teal-dark);
}

.site-header.is-scrolled .admin-entry {
  background: #e7f4ff;
}

.ghost-link svg,
.admin-entry svg,
.button svg,
.icon-button svg,
.icon-chip svg,
.service-icon svg,
.case-result svg,
.news-item > svg,
.about-point svg,
.contact-panel-head svg,
.contact-action-icon svg {
  width: 19px;
  height: 19px;
  flex: 0 0 auto;
}

.lucide {
  display: inline-block;
  max-width: 100%;
  max-height: 100%;
  overflow: visible;
  vertical-align: middle;
}

.icon-button {
  width: 42px;
  height: 42px;
  display: none;
  place-items: center;
  border-radius: 8px;
  color: currentColor;
  background: rgba(255, 255, 255, 0.14);
}

.hero {
  position: relative;
  min-height: 84vh;
  margin-top: calc(var(--header-height) * -1);
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--paper);
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-position: center;
  background-size: cover;
  transform: scale(1.03);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(12, 20, 32, 0.86), rgba(12, 20, 32, 0.56) 46%, rgba(12, 20, 32, 0.18)),
    linear-gradient(180deg, rgba(12, 20, 32, 0.22), rgba(12, 20, 32, 0.62));
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.55fr);
  align-items: end;
  gap: 52px;
  padding-top: calc(var(--header-height) + 58px);
  padding-bottom: 54px;
}

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

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--amber);
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 3.8rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-summary {
  max-width: 700px;
  margin: 24px 0 0;
  font-size: 1.12rem;
  color: rgba(255, 255, 255, 0.84);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 700;
  line-height: 1.2;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--teal);
  color: var(--paper);
  box-shadow: 0 14px 30px rgba(8, 117, 111, 0.24);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: var(--teal-dark);
}

.button.secondary {
  color: var(--paper);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.34);
}

.hero-panel {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-panel-head {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  font-weight: 700;
}

.metric-list {
  display: grid;
}

.metric-item {
  display: grid;
  grid-template-columns: 104px 1fr;
  align-items: baseline;
  gap: 16px;
  padding: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.metric-item:last-child {
  border-bottom: 0;
}

.metric-item strong {
  font-size: 2rem;
  line-height: 1;
  color: #f7d38f;
}

.metric-item span {
  color: rgba(255, 255, 255, 0.82);
}

.section {
  padding: 84px 0;
}

.intro-strip {
  padding: 28px 0;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.intro-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
  min-height: 112px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.intro-item h3,
.service-card h3,
.strength-item h3,
.case-card h3,
.news-item h3 {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.35;
}

.intro-item p,
.service-card p,
.strength-item p,
.case-card p,
.news-item p,
.section-heading p,
.section-copy p,
.feature-copy p,
.contact-copy p,
.site-footer p {
  margin: 10px 0 0;
  color: var(--ink-soft);
}

.icon-chip,
.service-icon {
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
}

.icon-chip {
  width: 48px;
  height: 48px;
  color: var(--teal);
  background: var(--green-soft);
}

.intro-card:nth-child(1) .icon-chip {
  color: #0c6fc9;
  background: linear-gradient(135deg, #e0f4ff, #c7ecff);
}

.intro-card:nth-child(2) .icon-chip {
  color: #08756f;
  background: linear-gradient(135deg, #dff8f2, #d6efff);
}

.intro-card:nth-child(3) .icon-chip {
  color: #0f8f7b;
  background: linear-gradient(135deg, #dff8f2, #fff1c4);
}

.section-light {
  background:
    linear-gradient(180deg, rgba(245, 247, 248, 0.84), rgba(245, 247, 248, 1)),
    var(--paper-soft);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 56px;
  align-items: center;
}

.section-copy h2,
.section-heading h2,
.feature-copy h2,
.contact-copy h2 {
  margin: 0;
  font-size: 2.35rem;
  line-height: 1.18;
  letter-spacing: 0;
}

.section-copy p,
.feature-copy p,
.contact-copy p {
  font-size: 1.02rem;
}

.about-points {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.about-point {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  align-items: start;
  color: var(--ink-soft);
}

.about-point svg {
  margin-top: 3px;
  color: var(--teal);
}

.media-block {
  position: relative;
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  background: var(--paper);
}

.media-block img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.media-block figcaption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  min-height: 46px;
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border-radius: 8px;
  color: var(--paper);
  background: rgba(12, 20, 32, 0.72);
  backdrop-filter: blur(10px);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
  text-align: center;
}

.section-heading.align-left {
  margin: 0;
  text-align: left;
}

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

.service-card {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 1px 0 rgba(23, 32, 51, 0.02);
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.service-card:hover {
  transform: translateY(-3px);
  border-color: rgba(8, 117, 111, 0.28);
  box-shadow: var(--shadow-soft);
}

.service-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 22px;
  color: var(--paper);
  background: var(--teal);
}

.service-card:nth-child(1) .service-icon {
  background: linear-gradient(135deg, #0c4f99, #2fa7e8);
  box-shadow: 0 16px 34px rgba(12, 79, 153, 0.22);
}

.service-card:nth-child(2) .service-icon {
  background: linear-gradient(135deg, #0868c7, #13b5cf);
  box-shadow: 0 16px 34px rgba(8, 104, 199, 0.22);
}

.service-card:nth-child(3) .service-icon {
  background: linear-gradient(135deg, #1378d1, #f2bf42);
  box-shadow: 0 16px 34px rgba(19, 120, 209, 0.22);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 22px;
}

.tag {
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  padding: 5px 9px;
  border-radius: 8px;
  color: var(--teal-dark);
  background: var(--green-soft);
  font-size: 0.84rem;
  font-weight: 700;
}

.feature-band {
  color: var(--paper);
  background:
    linear-gradient(120deg, rgba(10, 68, 65, 0.96), rgba(25, 32, 50, 0.96)),
    url("https://images.unsplash.com/photo-1517048676732-d65bc937f952?auto=format&fit=crop&w=1800&q=80") center / cover;
}

.feature-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(420px, 1fr);
  gap: 48px;
  align-items: start;
}

.feature-copy {
  position: sticky;
  top: 106px;
}

.feature-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.strength-list {
  display: grid;
  gap: 16px;
}

.strength-item {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
}

.strength-item > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 8px;
  color: #f6d391;
  background: rgba(255, 255, 255, 0.12);
  font-weight: 800;
}

.strength-item p {
  color: rgba(255, 255, 255, 0.76);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.case-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow-soft);
}

.case-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.case-body {
  padding: 22px;
}

.case-industry {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  margin-bottom: 14px;
  padding: 5px 10px;
  border-radius: 8px;
  color: #7a4510;
  background: #fff0da;
  font-size: 0.84rem;
  font-weight: 800;
}

.case-result {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: var(--teal-dark);
  font-weight: 800;
}

.gallery-tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 24px;
}

.gallery-filter {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 13px;
  color: var(--ink);
  background: var(--paper);
  cursor: pointer;
  font-weight: 800;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.gallery-filter strong {
  min-width: 26px;
  min-height: 24px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  color: var(--teal-dark);
  background: var(--green-soft);
  font-size: 0.82rem;
}

.gallery-filter:hover,
.gallery-filter:focus-visible,
.gallery-filter.is-active {
  border-color: var(--teal);
  color: var(--paper);
  background: var(--teal);
}

.gallery-filter:hover strong,
.gallery-filter:focus-visible strong,
.gallery-filter.is-active strong {
  color: var(--teal-dark);
  background: var(--paper);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.gallery-card {
  position: relative;
  min-height: 0;
  overflow: hidden;
  border: 0;
  border-radius: 8px;
  padding: 0;
  background: var(--paper-soft);
  cursor: pointer;
  aspect-ratio: 4 / 5;
  box-shadow: 0 1px 0 rgba(23, 32, 51, 0.04);
}

.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 180ms ease;
}

.gallery-card span {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 8px;
  min-height: 30px;
  display: flex;
  align-items: center;
  padding: 6px 8px;
  border-radius: 8px;
  color: var(--paper);
  background: rgba(12, 20, 32, 0.72);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.25;
}

.gallery-card:hover img,
.gallery-card:focus-visible img {
  transform: scale(1.045);
}

.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) 62px;
  align-items: center;
  gap: 14px;
  padding: 28px;
  background: rgba(12, 20, 32, 0.9);
}

.lightbox-figure {
  min-width: 0;
  max-width: min(100%, 1120px);
  margin: 0 auto;
  color: var(--paper);
}

.lightbox-figure img {
  width: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.lightbox-figure figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.84);
}

.lightbox-figure strong {
  color: #f6d391;
  white-space: nowrap;
}

.lightbox-close,
.lightbox-arrow {
  border: 0;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: var(--paper);
  background: rgba(255, 255, 255, 0.12);
  cursor: pointer;
}

.lightbox-close {
  position: absolute;
  right: 24px;
  top: 24px;
  width: 44px;
  height: 44px;
}

.lightbox-arrow {
  width: 54px;
  height: 54px;
}

.lightbox-arrow svg,
.lightbox-close svg {
  width: 24px;
  height: 24px;
}

.lightbox-close:hover,
.lightbox-close:focus-visible,
.lightbox-arrow:hover,
.lightbox-arrow:focus-visible {
  background: rgba(255, 255, 255, 0.22);
}

.news-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.42fr) minmax(0, 1fr);
  gap: 46px;
  align-items: start;
}

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

.news-item {
  display: grid;
  grid-template-columns: 108px 1fr 24px;
  gap: 18px;
  align-items: center;
  min-height: 116px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.news-item:hover {
  border-color: rgba(8, 117, 111, 0.28);
  box-shadow: var(--shadow-soft);
}

.news-item time {
  color: var(--amber);
  font-weight: 800;
}

.news-item > svg {
  color: var(--teal);
}

.contact-section {
  color: var(--paper);
  background:
    linear-gradient(90deg, rgba(18, 28, 43, 0.96), rgba(8, 83, 79, 0.88)),
    url("https://images.unsplash.com/photo-1497215842964-222b430dc094?auto=format&fit=crop&w=1800&q=80") center / cover;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 0.65fr);
  gap: 52px;
  align-items: start;
}

.contact-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-methods {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.contact-method {
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.contact-method span {
  display: block;
  color: rgba(255, 255, 255, 0.66);
}

.contact-method .icon-chip {
  display: inline-grid;
  place-items: center;
  color: var(--teal);
}

.contact-method .icon-chip svg {
  width: 20px;
  height: 20px;
  margin: 0;
}

.contact-method strong {
  display: block;
  margin-top: 2px;
  color: var(--paper);
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  border-radius: 8px;
  color: var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 700;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--ink);
  background: var(--paper);
  outline: none;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.contact-form textarea {
  resize: vertical;
  min-height: 112px;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(8, 117, 111, 0.12);
}

.form-submit {
  width: 100%;
  margin-top: 2px;
}

.form-note {
  min-height: 24px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.contact-panel {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  padding: 24px;
  color: var(--paper);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.08)),
    rgba(9, 18, 30, 0.38);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.contact-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  color: #f6d391;
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.contact-panel h3 {
  margin: 0;
  font-size: 1.55rem;
  line-height: 1.28;
}

.contact-panel p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.74);
}

.contact-action-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.contact-action {
  min-height: 76px;
  display: grid;
  grid-template-columns: 48px 1fr 24px;
  gap: 14px;
  align-items: center;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 14px;
  color: var(--paper);
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  text-align: left;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.contact-action:hover,
.contact-action:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(56, 214, 197, 0.68);
  background: rgba(255, 255, 255, 0.14);
}

.contact-action-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: var(--teal-dark);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(227, 245, 241, 0.92)),
    var(--paper);
}

.contact-action strong,
.contact-action small {
  display: block;
}

.contact-action strong {
  font-size: 1rem;
}

.contact-action small {
  margin-top: 2px;
  overflow-wrap: anywhere;
  color: rgba(255, 255, 255, 0.68);
}

.contact-action > svg {
  width: 20px;
  height: 20px;
  color: rgba(255, 255, 255, 0.7);
}

.contact-action-note {
  min-height: 24px;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.9rem;
}

.site-footer {
  padding: 42px 0 24px;
  color: rgba(255, 255, 255, 0.78);
  background: #121924;
}

.footer-layout {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
}

.footer-brand {
  color: var(--paper);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
}

.footer-links a {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.74);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--paper);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.9rem;
}

:focus-visible {
  outline: 3px solid rgba(199, 123, 25, 0.55);
  outline-offset: 3px;
}

@media (max-width: 1080px) {
  .site-nav {
    position: fixed;
    left: 20px;
    right: 20px;
    top: calc(var(--header-height) + 10px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    background: var(--paper);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    min-height: 44px;
  }

  .icon-button {
    display: grid;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-panel {
    max-width: 560px;
  }

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

  .split-layout,
  .feature-layout,
  .news-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .feature-copy {
    position: static;
  }

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

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

@media (max-width: 1240px) {
  .admin-entry span {
    display: none;
  }

  .admin-entry {
    width: 40px;
    justify-content: center;
    padding-inline: 0;
  }
}

@media (max-width: 740px) {
  :root {
    --header-height: 68px;
  }

  .container {
    width: min(100% - 28px, var(--container));
  }

  .ghost-link {
    display: none;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .hero {
    min-height: 82vh;
  }

  .hero-layout {
    padding-top: calc(var(--header-height) + 52px);
    padding-bottom: 38px;
  }

  .hero h1 {
    font-size: 2.35rem;
  }

  .hero-summary {
    font-size: 1rem;
  }

  .button {
    width: 100%;
  }

  .hero-panel-head,
  .metric-item {
    padding: 15px;
  }

  .metric-item {
    grid-template-columns: 86px 1fr;
  }

  .metric-item strong {
    font-size: 1.6rem;
  }

  .section {
    padding: 58px 0;
  }

  .intro-strip {
    padding: 20px 0;
  }

  .intro-grid,
  .card-grid,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .gallery-tools {
    justify-content: flex-start;
  }

  .gallery-filter {
    flex: 1 1 calc(50% - 10px);
    justify-content: space-between;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .gallery-card span {
    font-size: 0.72rem;
  }

  .gallery-lightbox {
    grid-template-columns: 44px minmax(0, 1fr) 44px;
    gap: 8px;
    padding: 18px 12px;
  }

  .lightbox-close {
    right: 14px;
    top: 14px;
    width: 40px;
    height: 40px;
  }

  .lightbox-arrow {
    width: 42px;
    height: 42px;
  }

  .lightbox-figure figcaption {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    font-size: 0.9rem;
  }

  .intro-item,
  .strength-item,
  .contact-method {
    grid-template-columns: 42px 1fr;
  }

  .icon-chip {
    width: 42px;
    height: 42px;
  }

  .section-copy h2,
  .section-heading h2,
  .feature-copy h2,
  .contact-copy h2 {
    font-size: 1.9rem;
  }

  .media-block figcaption {
    position: static;
    border-radius: 0;
    background: var(--ink);
  }

  .service-card {
    min-height: 260px;
  }

  .strength-item {
    gap: 14px;
    padding: 18px;
  }

  .strength-item > span {
    width: 42px;
    height: 42px;
    font-size: 0.88rem;
  }

  .news-item {
    grid-template-columns: 1fr 24px;
    gap: 10px 14px;
    min-height: auto;
  }

  .news-item time {
    grid-column: 1 / -1;
  }

  .contact-form {
    padding: 18px;
  }

  .footer-layout,
  .footer-bottom {
    flex-direction: column;
  }

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

@media (max-width: 420px) {
  .hero h1 {
    font-size: 2.05rem;
  }

  .hero-actions {
    gap: 10px;
  }

  .metric-item {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .section-copy h2,
  .section-heading h2,
  .feature-copy h2,
  .contact-copy h2 {
    font-size: 1.65rem;
  }

  .gallery-filter {
    flex-basis: 100%;
  }

  .intro-item,
  .about-point,
  .strength-item,
  .contact-method {
    grid-template-columns: 1fr;
  }
}

/* Visual refresh: energy-tech theme */
:root {
  --ink: #111827;
  --ink-soft: #52606f;
  --paper: #ffffff;
  --paper-soft: #f3f7f5;
  --line: #d9e5e1;
  --teal: #009b88;
  --teal-dark: #046c63;
  --amber: #e8a632;
  --coral: #d96a4d;
  --green-soft: #e3f5f1;
  --night: #0d1722;
  --night-2: #152433;
  --cyan: #38d6c5;
  --gold: #f5c45c;
  --shadow: 0 22px 70px rgba(10, 23, 34, 0.16);
  --shadow-soft: 0 12px 36px rgba(10, 23, 34, 0.1);
}

body {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 248, 246, 0.96)),
    repeating-linear-gradient(90deg, rgba(0, 155, 136, 0.035) 0 1px, transparent 1px 92px);
}

.site-header {
  background: rgba(9, 18, 30, 0.42);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.86);
  border-bottom-color: rgba(217, 229, 225, 0.9);
}

.brand-mark {
  background:
    linear-gradient(135deg, rgba(56, 214, 197, 0.96), rgba(245, 196, 92, 0.96)),
    var(--teal);
  box-shadow: 0 12px 28px rgba(0, 155, 136, 0.34);
}

.site-nav a {
  position: relative;
}

.site-nav a::after {
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 5px;
  height: 2px;
  content: "";
  border-radius: 999px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.hero {
  min-height: 92vh;
  isolation: isolate;
  background: var(--night);
}

.hero::before,
.hero::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  content: "";
}

.hero::before {
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.075) 0 1px, transparent 1px 118px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 118px);
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.62), transparent 74%);
}

.hero::after {
  clip-path: polygon(64% 0, 100% 0, 100% 100%, 42% 100%);
  background:
    linear-gradient(135deg, rgba(56, 214, 197, 0.1), transparent 42%),
    linear-gradient(180deg, rgba(245, 196, 92, 0.16), transparent 54%);
}

.hero-media {
  filter: saturate(1.08) contrast(1.05);
  animation: heroDrift 16s ease-in-out infinite alternate;
}

.hero-shade {
  z-index: 0;
  background:
    linear-gradient(90deg, rgba(6, 13, 22, 0.92), rgba(9, 20, 30, 0.68) 46%, rgba(6, 13, 22, 0.26)),
    linear-gradient(180deg, rgba(6, 13, 22, 0.18), rgba(6, 13, 22, 0.82));
}

.hero-layout {
  z-index: 2;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  color: var(--amber);
  text-transform: uppercase;
}

.eyebrow::before,
.section-kicker::before {
  width: 26px;
  height: 2px;
  content: "";
  border-radius: 999px;
  background: currentColor;
}

.hero h1 {
  max-width: 850px;
  color: var(--paper);
  font-size: 4.2rem;
  text-shadow: 0 18px 46px rgba(0, 0, 0, 0.45);
}

.hero-summary {
  max-width: 740px;
  color: rgba(255, 255, 255, 0.86);
}

.button.primary {
  background:
    linear-gradient(135deg, var(--teal), #12bca7 54%, var(--amber)),
    var(--teal);
  box-shadow: 0 18px 38px rgba(0, 155, 136, 0.34);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.24);
}

.hero-panel {
  overflow: hidden;
  border-color: rgba(255, 255, 255, 0.2);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.08)),
    rgba(9, 18, 30, 0.32);
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.32);
}

.hero-panel::before {
  display: block;
  height: 3px;
  content: "";
  background: linear-gradient(90deg, var(--cyan), var(--gold), var(--coral));
}

.metric-item {
  position: relative;
}

.metric-item::before {
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  content: "";
  border-radius: 999px;
  background: var(--cyan);
  opacity: 0.8;
}

.intro-strip {
  position: relative;
  z-index: 3;
  margin-top: -28px;
  padding: 0 0 34px;
  border-bottom: 0;
  background: transparent;
}

.intro-item {
  border-color: rgba(217, 229, 225, 0.9);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
}

.icon-chip {
  color: var(--teal-dark);
  background:
    linear-gradient(135deg, rgba(56, 214, 197, 0.2), rgba(245, 196, 92, 0.24)),
    var(--green-soft);
}

.section {
  position: relative;
}

.section-light {
  background:
    linear-gradient(180deg, rgba(247, 250, 248, 0.96), rgba(239, 245, 242, 0.96)),
    repeating-linear-gradient(90deg, rgba(0, 155, 136, 0.04) 0 1px, transparent 1px 84px);
}

.section-heading h2,
.section-copy h2,
.feature-copy h2,
.contact-copy h2 {
  color: var(--ink);
}

.service-card {
  position: relative;
  overflow: hidden;
  border-color: rgba(217, 229, 225, 0.88);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 252, 250, 0.98)),
    var(--paper);
}

.service-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  content: "";
  background: linear-gradient(90deg, var(--teal), var(--gold), var(--coral));
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 58px rgba(10, 23, 34, 0.14);
}

.service-icon {
  background:
    linear-gradient(135deg, var(--teal-dark), var(--teal) 52%, var(--amber)),
    var(--teal);
  box-shadow: 0 14px 26px rgba(0, 155, 136, 0.22);
}

.feature-band {
  background:
    linear-gradient(120deg, rgba(4, 34, 37, 0.96), rgba(21, 36, 51, 0.94)),
    image-set(
      url("uploads/qiaowei-hero-solar-light-alt.webp") type("image/webp"),
      url("uploads/qiaowei-hero-solar-light-alt.jpg")
    ) center / cover;
}

.strength-item {
  border-color: rgba(255, 255, 255, 0.16);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.06)),
    rgba(255, 255, 255, 0.06);
}

.case-card {
  position: relative;
  border-color: rgba(217, 229, 225, 0.9);
  box-shadow: 0 14px 40px rgba(10, 23, 34, 0.1);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 28px 70px rgba(10, 23, 34, 0.16);
}

.case-card img {
  filter: saturate(1.06) contrast(1.04);
}

#gallery {
  overflow: hidden;
  color: var(--paper);
  background:
    linear-gradient(180deg, rgba(13, 23, 34, 0.98), rgba(10, 34, 35, 0.98)),
    var(--night);
}

#gallery::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.055) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 96px);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.72), transparent 88%);
}

#gallery .container {
  position: relative;
  z-index: 1;
}

#gallery .section-heading h2,
#gallery .section-heading p {
  color: var(--paper);
}

#gallery .section-heading p:last-child {
  color: rgba(255, 255, 255, 0.72);
}

.gallery-filter {
  border-color: rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.84);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.gallery-filter strong {
  color: var(--night);
  background: var(--gold);
}

.gallery-filter:hover,
.gallery-filter:focus-visible,
.gallery-filter.is-active {
  border-color: rgba(56, 214, 197, 0.74);
  color: var(--paper);
  background: linear-gradient(135deg, rgba(0, 155, 136, 0.86), rgba(56, 214, 197, 0.5));
}

.gallery-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  grid-auto-rows: 140px;
  grid-auto-flow: dense;
  gap: 14px;
}

.gallery-card {
  height: 100%;
  aspect-ratio: auto;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.24);
}

.gallery-card:nth-child(9n + 1),
.gallery-card:nth-child(9n + 6) {
  grid-column: span 2;
  grid-row: span 2;
}

.gallery-card:nth-child(9n + 4) {
  grid-column: span 2;
}

.gallery-card::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, transparent 42%, rgba(0, 0, 0, 0.62));
}

.gallery-card img {
  filter: saturate(1.08) contrast(1.04);
}

.gallery-card span {
  z-index: 1;
  background: rgba(13, 23, 34, 0.74);
  backdrop-filter: blur(10px);
}

.news-item {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 252, 250, 0.98)),
    var(--paper);
}

.contact-section {
  background:
    linear-gradient(90deg, rgba(9, 18, 30, 0.97), rgba(0, 93, 85, 0.9)),
    image-set(
      url("uploads/qiaowei-case-solar-light.webp") type("image/webp"),
      url("uploads/qiaowei-case-solar-light.jpg")
    ) center / cover;
}

.contact-form {
  border: 1px solid rgba(255, 255, 255, 0.34);
}

.site-footer {
  background:
    linear-gradient(180deg, #101a25, #081018),
    var(--night);
}

@keyframes heroDrift {
  from {
    transform: scale(1.03) translate3d(0, 0, 0);
  }

  to {
    transform: scale(1.09) translate3d(-1.2%, -0.8%, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-media {
    animation: none;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto;
  }
}

@media (max-width: 1080px) {
  .gallery-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-auto-rows: 130px;
  }
}

@media (max-width: 740px) {
  .hero h1 {
    font-size: 2.42rem;
  }

  .intro-strip {
    margin-top: 0;
    padding-top: 18px;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 150px;
    gap: 10px;
  }

  .gallery-card:nth-child(n) {
    grid-column: span 1;
    grid-row: span 1;
  }

  .gallery-card:nth-child(6n + 1) {
    grid-row: span 2;
  }
}

@media (max-width: 420px) {
  .hero h1 {
    font-size: 2.08rem;
  }

  .gallery-grid {
    grid-auto-rows: 132px;
  }
}

/* Mobile polish */
@media (max-width: 740px) {
  html,
  body {
    max-width: 100%;
    overflow-x: hidden;
  }

  .container {
    width: min(100% - 28px, var(--container));
  }

  .site-header {
    height: 64px;
    background: rgba(9, 18, 30, 0.82);
  }

  .site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.94);
  }

  .header-inner {
    gap: 10px;
  }

  .brand {
    min-width: 0;
  }

  .brand-text {
    max-width: calc(100vw - 112px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.98rem;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 8px;
  }

  .icon-button {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.12);
  }

  .site-nav {
    left: 14px;
    right: 14px;
    top: 74px;
    max-height: calc(100vh - 94px);
    overflow-y: auto;
    padding: 10px;
    background: rgba(255, 255, 255, 0.96);
  }

  .site-nav a {
    min-height: 42px;
    border-radius: 8px;
    padding: 9px 10px;
    color: var(--ink);
  }

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

  .hero {
    min-height: auto;
    align-items: start;
  }

  .hero::before {
    opacity: 0.45;
  }

  .hero::after {
    display: none;
  }

  .hero-media {
    background-position: 58% center;
    animation: none;
    transform: scale(1.03);
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(6, 13, 22, 0.72), rgba(6, 13, 22, 0.94)),
      linear-gradient(90deg, rgba(6, 13, 22, 0.94), rgba(6, 13, 22, 0.42));
  }

  .hero-layout {
    min-height: auto;
    gap: 24px;
    padding-top: 112px;
    padding-bottom: 32px;
  }

  .eyebrow,
  .section-kicker {
    margin-bottom: 10px;
    font-size: 0.78rem;
  }

  .hero h1 {
    max-width: 100%;
    font-size: clamp(2rem, 9.2vw, 2.62rem);
    line-height: 1.12;
  }

  .hero-summary {
    margin-top: 16px;
    font-size: 0.98rem;
    line-height: 1.72;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 22px;
  }

  .button {
    min-height: 46px;
    padding: 11px 14px;
  }

  .hero-panel {
    max-width: none;
  }

  .hero-panel-head {
    min-height: 48px;
  }

  .metric-item {
    grid-template-columns: 82px 1fr;
    padding: 14px 16px;
  }

  .metric-item strong {
    font-size: 1.45rem;
  }

  .metric-item span {
    font-size: 0.92rem;
  }

  .intro-strip {
    padding: 18px 0 10px;
  }

  .intro-grid,
  .card-grid,
  .case-grid {
    gap: 12px;
  }

  .intro-item {
    min-height: auto;
    padding: 16px;
  }

  .section {
    padding: 54px 0;
  }

  .section-heading {
    margin-bottom: 24px;
    text-align: left;
  }

  .section-copy h2,
  .section-heading h2,
  .feature-copy h2,
  .contact-copy h2 {
    font-size: clamp(1.62rem, 7vw, 2rem);
  }

  .section-heading p,
  .section-copy p,
  .feature-copy p,
  .contact-copy p {
    font-size: 0.98rem;
    line-height: 1.72;
  }

  .split-layout,
  .feature-layout,
  .news-layout,
  .contact-layout {
    gap: 24px;
  }

  .media-block img {
    aspect-ratio: 16 / 11;
  }

  .service-card {
    min-height: auto;
    padding: 20px;
  }

  .service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
  }

  .tag-row {
    padding-top: 16px;
  }

  .feature-band {
    background-position: 56% center;
  }

  .strength-item {
    grid-template-columns: 48px 1fr;
    padding: 16px;
  }

  .strength-item > span {
    width: 42px;
    height: 42px;
  }

  .case-body {
    padding: 18px;
  }

  .case-card img {
    aspect-ratio: 16 / 11;
  }

  #gallery {
    padding-bottom: 42px;
  }

  .gallery-tools {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 18px;
  }

  .gallery-filter {
    width: 100%;
    min-height: 42px;
    padding: 9px 10px;
    font-size: 0.88rem;
  }

  .gallery-filter span {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 138px;
    grid-auto-flow: row;
    gap: 10px;
  }

  .gallery-card:nth-child(n) {
    grid-column: auto;
    grid-row: auto;
  }

  .gallery-card:nth-child(5n + 1) {
    grid-row: span 2;
  }

  .gallery-card span {
    left: 6px;
    right: 6px;
    bottom: 6px;
    min-height: 28px;
    padding: 5px 7px;
    font-size: 0.72rem;
  }

  .gallery-lightbox {
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    padding: 58px 12px 18px;
  }

  .lightbox-figure {
    width: 100%;
  }

  .lightbox-figure img {
    max-height: 70vh;
  }

  .lightbox-arrow {
    position: absolute;
    top: 50%;
    width: 40px;
    height: 48px;
    transform: translateY(-50%);
    background: rgba(8, 16, 24, 0.58);
  }

  .lightbox-prev {
    left: 8px;
  }

  .lightbox-next {
    right: 8px;
  }

  .lightbox-close {
    right: 12px;
    top: 12px;
  }

  .lightbox-figure figcaption {
    padding: 0 4px;
    font-size: 0.86rem;
  }

  .news-item {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 8px;
    padding: 16px;
  }

  .news-item > svg {
    display: none;
  }

  .contact-section {
    background-position: center;
  }

  .contact-method {
    padding: 14px;
  }

  .contact-form {
    padding: 16px;
  }

  .contact-panel {
    padding: 18px;
  }

  .contact-panel h3 {
    font-size: 1.35rem;
  }

  .contact-action {
    min-height: 68px;
    grid-template-columns: 42px 1fr 20px;
    gap: 12px;
    padding: 12px;
  }

  .contact-action-icon {
    width: 42px;
    height: 42px;
  }

  .footer-layout,
  .footer-bottom {
    gap: 16px;
  }
}

@media (max-width: 420px) {
  .container {
    width: min(100% - 24px, var(--container));
  }

  .brand-text {
    max-width: calc(100vw - 104px);
  }

  .hero-layout {
    padding-top: 104px;
  }

  .hero h1 {
    font-size: clamp(1.82rem, 9.8vw, 2.18rem);
  }

  .metric-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .intro-item,
  .strength-item,
  .contact-method {
    grid-template-columns: 1fr;
  }

  .gallery-tools {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-auto-rows: 126px;
  }

  .gallery-card:nth-child(5n + 1) {
    grid-row: auto;
  }

  .contact-form input,
  .contact-form select,
  .contact-form textarea {
    font-size: 16px;
  }

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

  .contact-action-icon {
    width: 40px;
    height: 40px;
  }

  .contact-action > svg {
    display: none;
  }
}

/* Blue sky corporate theme */
:root {
  --ink: #14324f;
  --ink-soft: #5c7085;
  --paper-soft: #f3f9ff;
  --line: #d7e8f7;
  --teal: #1378d1;
  --teal-dark: #0c4f99;
  --amber: #f2b84b;
  --green-soft: #e7f4ff;
  --night: #0c4f99;
  --night-2: #0f68b7;
  --cyan: #42b8ff;
  --gold: #ffd36b;
}

body {
  background:
    linear-gradient(180deg, rgba(246, 251, 255, 0.98), rgba(255, 255, 255, 0.98)),
    repeating-linear-gradient(90deg, rgba(19, 120, 209, 0.035) 0 1px, transparent 1px 96px);
}

.site-header {
  color: #12304d;
  background: rgba(255, 255, 255, 0.62);
  border-bottom-color: rgba(255, 255, 255, 0.42);
}

.site-header.is-scrolled {
  color: #12304d;
  background: rgba(255, 255, 255, 0.94);
}

.brand-mark {
  background:
    linear-gradient(135deg, #0f7bdc, #4db8ff 54%, #ffd36b),
    #1378d1;
  box-shadow: 0 12px 28px rgba(19, 120, 209, 0.28);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(19, 120, 209, 0.1);
}

.site-nav a::after {
  background: #1378d1;
}

.ghost-link {
  color: #12304d;
  background: rgba(255, 255, 255, 0.68);
}

.hero {
  background: #dff2ff;
}

.hero::before {
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 255, 255, 0.72), transparent 20%),
    repeating-linear-gradient(90deg, rgba(19, 120, 209, 0.05) 0 1px, transparent 1px 120px);
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.34), transparent 72%);
}

.hero::after {
  display: none;
}

.hero-media {
  filter: saturate(1.02) contrast(1);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(245, 251, 255, 0.94), rgba(245, 251, 255, 0.78) 43%, rgba(245, 251, 255, 0.12) 72%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(219, 239, 255, 0.22));
}

.hero h1 {
  color: #12304d;
  text-shadow: 0 16px 36px rgba(255, 255, 255, 0.72);
}

.hero-summary {
  color: #31546f;
}

.eyebrow,
.section-kicker {
  color: #1378d1;
}

.button.primary {
  background:
    linear-gradient(135deg, #0f6fc8, #31a8f4 62%, #75d5ff),
    #1378d1;
  box-shadow: 0 18px 38px rgba(19, 120, 209, 0.3);
}

.button.secondary {
  color: #0c4f99;
  border-color: rgba(19, 120, 209, 0.28);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 14px 32px rgba(19, 120, 209, 0.12);
}

.hero-panel {
  color: #14324f;
  border-color: rgba(255, 255, 255, 0.68);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(239, 248, 255, 0.78)),
    rgba(255, 255, 255, 0.82);
  box-shadow: 0 24px 70px rgba(19, 120, 209, 0.2);
}

.hero-panel-head {
  border-bottom-color: rgba(19, 120, 209, 0.16);
}

.metric-item {
  border-bottom-color: rgba(19, 120, 209, 0.12);
}

.metric-item strong {
  color: #0f6fc8;
}

.metric-item span {
  color: #48657e;
}

.metric-item::before {
  background: #42b8ff;
}

.intro-item,
.service-card,
.case-card,
.news-item {
  border-color: rgba(215, 232, 247, 0.95);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 251, 255, 0.98)),
    #fff;
}

.icon-chip,
.service-icon {
  color: #0c4f99;
  background:
    linear-gradient(135deg, rgba(66, 184, 255, 0.24), rgba(255, 211, 107, 0.22)),
    #e7f4ff;
}

.service-icon {
  color: #fff;
  background:
    linear-gradient(135deg, #0c4f99, #1378d1 58%, #48bfff),
    #1378d1;
}

.section-light {
  background:
    linear-gradient(180deg, #f7fbff, #eef8ff),
    repeating-linear-gradient(90deg, rgba(19, 120, 209, 0.04) 0 1px, transparent 1px 90px);
}

.feature-band {
  color: #14324f;
  background:
    linear-gradient(120deg, rgba(235, 248, 255, 0.94), rgba(255, 255, 255, 0.82)),
    image-set(
      url("uploads/qiaowei-blue-sky-city-hero.webp") type("image/webp"),
      url("uploads/qiaowei-blue-sky-city-hero.png")
    ) center / cover;
}

.feature-copy p,
.strength-item p {
  color: #4f6d84;
}

.strength-item {
  color: #14324f;
  border-color: rgba(19, 120, 209, 0.16);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.84), rgba(231, 244, 255, 0.76)),
    rgba(255, 255, 255, 0.8);
  box-shadow: 0 14px 34px rgba(19, 120, 209, 0.1);
}

.strength-item > span {
  color: #0c4f99;
  background: rgba(66, 184, 255, 0.18);
}

#gallery {
  color: #14324f;
  background:
    linear-gradient(180deg, rgba(239, 248, 255, 0.98), rgba(255, 255, 255, 0.98)),
    image-set(
      url("uploads/qiaowei-blue-sky-city-hero.webp") type("image/webp"),
      url("uploads/qiaowei-blue-sky-city-hero.png")
    ) center / cover;
}

#gallery::before {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(239, 248, 255, 0.9)),
    repeating-linear-gradient(90deg, rgba(19, 120, 209, 0.045) 0 1px, transparent 1px 96px);
  mask-image: none;
}

#gallery .section-heading h2,
#gallery .section-heading p {
  color: #14324f;
}

#gallery .section-heading p:last-child {
  color: #5c7085;
}

.gallery-filter {
  color: #14324f;
  border-color: rgba(19, 120, 209, 0.16);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 10px 26px rgba(19, 120, 209, 0.08);
}

.gallery-filter strong {
  color: #0c4f99;
  background: #e7f4ff;
}

.gallery-filter:hover,
.gallery-filter:focus-visible,
.gallery-filter.is-active {
  color: #fff;
  border-color: rgba(19, 120, 209, 0.72);
  background: linear-gradient(135deg, #0f6fc8, #42b8ff);
}

.gallery-card {
  border-color: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 42px rgba(19, 120, 209, 0.16);
}

.gallery-card span {
  background: rgba(12, 79, 153, 0.74);
}

.contact-section {
  color: #14324f;
  background:
    linear-gradient(90deg, rgba(235, 248, 255, 0.96), rgba(255, 255, 255, 0.82)),
    image-set(
      url("uploads/qiaowei-blue-sky-city-hero.webp") type("image/webp"),
      url("uploads/qiaowei-blue-sky-city-hero.png")
    ) center / cover;
}

.contact-copy p {
  color: #4f6d84;
}

.contact-method {
  color: #14324f;
  border-color: rgba(19, 120, 209, 0.16);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 12px 30px rgba(19, 120, 209, 0.1);
}

.contact-method span {
  color: #5c7085;
}

.contact-method strong {
  color: #14324f;
}

.contact-panel {
  color: #14324f;
  border-color: rgba(255, 255, 255, 0.82);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(239, 248, 255, 0.84)),
    rgba(255, 255, 255, 0.84);
  box-shadow: 0 24px 64px rgba(19, 120, 209, 0.18);
}

.contact-panel-head {
  color: #1378d1;
}

.contact-panel p,
.contact-action-note {
  color: #5c7085;
}

.contact-action {
  color: #14324f;
  border-color: rgba(19, 120, 209, 0.16);
  background: rgba(255, 255, 255, 0.82);
}

.contact-action:hover,
.contact-action:focus-visible {
  border-color: rgba(19, 120, 209, 0.52);
  background: #fff;
}

.contact-action-icon {
  color: #0c4f99;
  background: #e7f4ff;
}

.contact-action small,
.contact-action > svg {
  color: #5c7085;
}

.site-footer {
  background:
    linear-gradient(180deg, #0f4d90, #0b3562),
    #0c4f99;
}

@media (max-width: 740px) {
  .site-header {
    background: rgba(255, 255, 255, 0.88);
  }

  .hero-media {
    background-position: 64% center;
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(245, 251, 255, 0.92), rgba(245, 251, 255, 0.8)),
      linear-gradient(90deg, rgba(245, 251, 255, 0.96), rgba(245, 251, 255, 0.34));
  }

  .feature-band,
  .contact-section,
  #gallery {
    background-position: 62% center;
  }
}