:root {
  --brand: #0041eb;
  --brand-2: #2563eb;
  --brand-dark: #08245d;
  --accent: #ff5415;
  --teal: #0f766e;
  --ink: #0f172a;
  --text: #1e293b;
  --muted: #64748b;
  --soft: #f4f7fb;
  --surface: #ffffff;
  --line: #dbe3ef;
  --dark: #071225;
  --radius: 8px;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
  --max: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--surface);
  font-family: "Open Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
}

body.menu-open {
  overflow: hidden;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  font-family: "Poppins", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0;
}

p {
  margin: 0;
}

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

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

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 9999;
  padding: 10px 14px;
  color: var(--surface);
  background: var(--ink);
  border-radius: 6px;
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  border-bottom: 1px solid rgba(219, 227, 239, 0.78);
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(20px) saturate(170%);
  -webkit-backdrop-filter: blur(20px) saturate(170%);
  transition: box-shadow 0.2s ease, background 0.2s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.nav-wrap {
  width: min(var(--max), calc(100% - 40px));
  min-height: 78px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
}

.brand img {
  width: 128px;
  height: auto;
  filter: brightness(0) saturate(100%) invert(12%) sepia(19%) saturate(1312%) hue-rotate(180deg) brightness(91%) contrast(97%);
}

.brand-mark {
  display: none;
  font-weight: 700;
  color: var(--ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  min-height: 44px;
  padding: 10px 14px;
  display: inline-flex;
  align-items: center;
  color: #334155;
  border-radius: 6px;
  font-weight: 600;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.is-active {
  color: var(--brand);
  background: rgba(0, 65, 235, 0.08);
  outline: none;
}

.nav-links a.nav-emphasis {
  color: #c2410c;
  background: transparent;
  border: 1px solid transparent;
}

.nav-links a.nav-emphasis:hover,
.nav-links a.nav-emphasis:focus-visible,
.nav-links a.nav-emphasis.is-active {
  color: var(--surface);
  background: var(--accent);
  border-color: var(--accent);
}

.mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
}

.section {
  padding: 88px 0;
}

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

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.section-head {
  max-width: 720px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--brand);
  font-size: 0.92rem;
  font-weight: 700;
}

.section-kicker::before {
  width: 30px;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--brand), var(--accent));
}

.section-title {
  font-size: 2.2rem;
}

.section-lede {
  margin-top: 14px;
  color: var(--muted);
}

.btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.btn-primary {
  color: var(--surface);
  background: var(--brand);
  box-shadow: 0 14px 34px rgba(0, 65, 235, 0.32);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #0035c2;
  box-shadow: 0 18px 44px rgba(0, 65, 235, 0.42);
}

.btn-light {
  color: var(--brand);
  background: var(--surface);
  box-shadow: 0 16px 38px rgba(15, 23, 42, 0.18);
}

.btn-ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  border-color: rgba(255, 255, 255, 0.55);
}

.hero .btn-ghost {
  color: var(--surface);
  background: var(--accent);
  border-color: rgba(255, 84, 21, 0.82);
  box-shadow: 0 14px 34px rgba(255, 84, 21, 0.28);
}

.hero .btn-ghost:hover,
.hero .btn-ghost:focus-visible {
  color: var(--surface);
  background: #e9460d;
  border-color: #e9460d;
  box-shadow: 0 18px 44px rgba(255, 84, 21, 0.38);
}

.btn-outline {
  color: var(--brand);
  background: transparent;
  border-color: rgba(0, 65, 235, 0.22);
}

.btn[disabled],
.btn[aria-disabled="true"] {
  color: #94a3b8;
  background: #e2e8f0;
  border-color: #e2e8f0;
  box-shadow: none;
  cursor: not-allowed;
}

.btn[disabled]:hover,
.btn[aria-disabled="true"]:hover {
  transform: none;
}

.hero {
  min-height: 88dvh;
  position: relative;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: var(--surface);
  background-image:
    linear-gradient(90deg, rgba(3, 9, 25, 0.96) 0%, rgba(3, 9, 25, 0.84) 38%, rgba(8, 36, 93, 0.42) 68%, rgba(3, 9, 25, 0.16)),
    url("images/hero.jpg");
  background-position: center;
  background-size: cover;
}

.hero::after {
  display: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 160px 0 112px;
}

.hero-content {
  max-width: 760px;
  text-shadow: 0 2px 22px rgba(0, 0, 0, 0.46);
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.88);
  font-weight: 700;
}

.hero-kicker::before {
  width: 38px;
  height: 2px;
  content: "";
  background: var(--accent);
}

.hero-title {
  color: var(--surface);
  font-size: 4rem;
}

.hero-promise {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.94);
  font-size: 1.45rem;
  font-weight: 700;
}

.hero-text {
  max-width: 640px;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

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

.hero-proof span {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  color: rgba(255, 255, 255, 0.84);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
}

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

.metric-card {
  min-height: 160px;
  padding: 26px 24px;
  color: var(--surface);
  background: linear-gradient(145deg, #0f172a 0%, #0d2f7a 58%, #0041eb 100%);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  box-shadow: 0 18px 42px rgba(0, 65, 235, 0.18);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.metric-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 58px rgba(0, 65, 235, 0.25);
}

.metric-value {
  color: var(--accent);
  font-family: "Poppins", "Noto Sans SC", sans-serif;
  font-size: 2.9rem;
  font-weight: 700;
  line-height: 1;
}

.metric-label {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.88);
  font-weight: 700;
}

.metric-note {
  margin: 28px auto 0;
  max-width: 780px;
  color: var(--muted);
  text-align: center;
}

.metric-note a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

.service-card {
  min-height: 330px;
  padding: 30px;
  position: relative;
  overflow: hidden;
  color: rgba(255, 255, 255, 0.82);
  background: linear-gradient(145deg, #101827 0%, #08245d 52%, #0041eb 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  box-shadow: 0 18px 46px rgba(15, 23, 42, 0.14);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.service-card::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  content: "";
  background: linear-gradient(90deg, var(--accent), #f59e0b);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 28px 64px rgba(0, 65, 235, 0.24);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.icon-tile {
  width: 56px;
  height: 56px;
  margin-bottom: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--surface);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.service-card h3 {
  color: var(--surface);
  font-size: 1.35rem;
}

.service-card p {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.78);
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.service-tags span,
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 4px 10px;
  color: #0f3fb5;
  background: rgba(0, 65, 235, 0.09);
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 700;
}

.service-card .service-tags span {
  color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.13);
}

.proof-band {
  color: var(--surface);
  background: linear-gradient(135deg, #071225 0%, #08245d 62%, #0f766e 100%);
}

.proof-band .section-kicker,
.page-cover .section-kicker {
  color: rgba(255, 255, 255, 0.9);
}

.proof-band .section-kicker::before,
.page-cover .section-kicker::before {
  background: var(--accent);
}

.proof-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: center;
}

.proof-copy h2 {
  color: var(--surface);
  font-size: 2.25rem;
}

.proof-copy p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.78);
}

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

.process-item {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 18px;
  align-items: start;
  padding: 20px;
  background: linear-gradient(145deg, rgba(7, 18, 37, 0.98), rgba(0, 65, 235, 0.72));
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
}

.process-index {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--surface);
  background: linear-gradient(145deg, #071225, #0041eb);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  font-weight: 800;
}

.process-item h3 {
  color: var(--accent);
  font-size: 1.05rem;
}

.process-item p {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.74);
}

.cta-band {
  position: relative;
  overflow: hidden;
  color: var(--surface);
  background: linear-gradient(135deg, #071225 0%, #0041eb 70%, #ff5415 140%);
}

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

.cta-layout h2 {
  color: var(--surface);
  font-size: 2.1rem;
}

.cta-layout p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.78);
}

.page-cover {
  min-height: 38dvh;
  display: flex;
  align-items: flex-end;
  padding: 150px 0 72px;
  color: var(--surface);
  background:
    linear-gradient(135deg, rgba(7, 18, 37, 0.95), rgba(0, 65, 235, 0.8)),
    url("images/hero.jpg") center / cover;
}

.page-cover h1 {
  color: var(--surface);
  font-size: 3rem;
}

.page-cover p {
  max-width: 680px;
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.08rem;
}

.maintenance-cover {
  min-height: 48dvh;
  background:
    linear-gradient(135deg, rgba(7, 18, 37, 0.96), rgba(8, 36, 93, 0.82) 52%, rgba(15, 118, 110, 0.58)),
    url("images/hero.jpg") center / cover;
}

.maintenance-cover p {
  max-width: 760px;
}

.maintenance-page {
  overflow: hidden;
}

.maintenance-about {
  padding-top: 140px;
  background:
    radial-gradient(circle at 82% 10%, rgba(0, 65, 235, 0.09), transparent 32%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.maintenance-about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: 56px;
  align-items: start;
}

.maintenance-about h1 {
  max-width: 680px;
  font-size: clamp(2.2rem, 4.4vw, 4.35rem);
}

.maintenance-about h1 span {
  display: block;
}

.maintenance-about .about-copy p {
  max-width: 720px;
}

.maintenance-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.maintenance-stats div {
  min-height: 114px;
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--surface);
  border: 1px solid rgba(219, 227, 239, 0.9);
  border-radius: var(--radius);
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.08);
}

.maintenance-stats strong {
  color: var(--brand);
  font-size: clamp(1.45rem, 2.3vw, 2.05rem);
  font-weight: 800;
  line-height: 1.05;
}

.maintenance-stats span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.maintenance-about-media {
  position: relative;
}

.maintenance-about-media::before {
  position: absolute;
  inset: 9% 7% -3% 13%;
  content: "";
  background: linear-gradient(145deg, rgba(0, 65, 235, 0.16), rgba(255, 84, 21, 0.12));
  border-radius: 8px;
}

.maintenance-about-media img {
  position: relative;
  width: min(100%, 520px);
  margin: 0 auto;
  object-fit: contain;
}

.maintenance-pain-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.maintenance-pain-card {
  min-height: 208px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 38px rgba(15, 23, 42, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.maintenance-pain-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 65, 235, 0.28);
  box-shadow: 0 24px 54px rgba(15, 23, 42, 0.14);
}

.maintenance-pain-card .icon-tile {
  color: var(--brand);
  background: rgba(0, 65, 235, 0.08);
  border-color: rgba(0, 65, 235, 0.16);
}

.maintenance-pain-card h3 {
  font-size: 1.22rem;
}

.maintenance-pain-card p {
  margin-top: 12px;
  color: var(--muted);
}

.maintenance-method-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.maintenance-image-card {
  min-height: 360px;
  position: relative;
  overflow: hidden;
  color: var(--surface);
  background: var(--dark);
  border-radius: var(--radius);
  isolation: isolate;
}

.maintenance-image-card img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.maintenance-image-card::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: linear-gradient(135deg, rgba(7, 18, 37, 0.76), rgba(0, 65, 235, 0.36));
}

.maintenance-image-card div {
  min-height: 360px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.maintenance-image-card:hover img {
  transform: scale(1.05);
}

.maintenance-image-card h3 {
  color: var(--surface);
  font-size: 1.46rem;
}

.maintenance-image-card p {
  max-width: 540px;
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.84);
}

.maintenance-services .section-head {
  color: rgba(255, 255, 255, 0.78);
}

.maintenance-services .section-title {
  color: var(--surface);
}

.maintenance-services .section-lede {
  color: rgba(255, 255, 255, 0.76);
}

.maintenance-service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.maintenance-service-tile {
  min-height: 220px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--dark);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
  isolation: isolate;
}

.maintenance-service-tile img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease, filter 0.45s ease;
}

.maintenance-service-tile::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: linear-gradient(145deg, rgba(7, 18, 37, 0.76), rgba(0, 65, 235, 0.5));
}

.maintenance-service-tile:hover img {
  filter: saturate(1.1);
  transform: scale(1.06);
}

.maintenance-service-tile h3 {
  color: var(--surface);
  font-size: 1.45rem;
  line-height: 1.45;
}

.maintenance-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 42px;
  align-items: start;
}

.maintenance-panel {
  padding: 28px;
  color: rgba(255, 255, 255, 0.8);
  background: linear-gradient(145deg, #071225 0%, #08245d 58%, #0f766e 120%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.14);
}

.maintenance-panel-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.maintenance-panel-head .icon-tile {
  flex: 0 0 auto;
  margin-bottom: 0;
}

.maintenance-panel h2 {
  color: var(--surface);
  font-size: 1.36rem;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: rgba(255, 255, 255, 0.78);
}

.check-list li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 10px;
  height: 10px;
  content: "";
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(255, 84, 21, 0.16);
}

.maintenance-bridge {
  max-width: 920px;
  margin: 0 auto;
  padding-top: 34px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.maintenance-bridge h2 {
  font-size: 2.05rem;
}

.maintenance-bridge p {
  margin-top: 16px;
  color: var(--muted);
}

.maintenance-bridge-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 28px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.filter-btn {
  min-height: 44px;
  padding: 9px 15px;
  color: #334155;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  font-weight: 700;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.filter-btn:hover,
.filter-btn:focus-visible,
.filter-btn.is-active {
  color: var(--surface);
  background: var(--brand);
  border-color: var(--brand);
  outline: none;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

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

.case-card,
.article-card,
.contact-panel,
.value-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.08);
}

.case-card {
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.case-card-link {
  height: 100%;
  display: block;
  color: inherit;
}

.case-card-link:focus-visible {
  outline: 4px solid rgba(0, 65, 235, 0.24);
  outline-offset: 4px;
}

.case-card.is-hidden {
  display: none;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.case-media,
.article-media,
.about-media {
  overflow: hidden;
  background: var(--soft);
}

.case-media {
  aspect-ratio: 8 / 5;
}

.case-media img,
.article-media img,
.about-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.28s ease;
}

.case-card:hover img,
.article-card:hover img {
  transform: scale(1.035);
}

.case-body {
  padding: 24px;
}

.case-body h2 {
  margin-top: 13px;
  font-size: 1.35rem;
}

.case-body p {
  margin-top: 10px;
  color: var(--muted);
}

.case-meta {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.article-list {
  display: grid;
  gap: 22px;
}

.article-card {
  display: grid;
  grid-template-columns: 320px 1fr;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.article-media {
  aspect-ratio: 16 / 10;
}

.article-body {
  min-width: 0;
  padding: 26px;
}

.article-body h2 {
  margin-top: 12px;
  font-size: 1.45rem;
  transition: color 0.2s ease;
}

.article-card:hover h2 {
  color: var(--brand);
}

.article-body p {
  margin-top: 12px;
  color: var(--muted);
}

.article-footer {
  margin-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.94rem;
}

.article-footer a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--brand);
  font-weight: 700;
}

.pager {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 34px;
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-media {
  aspect-ratio: 10 / 7;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.about-copy h2 {
  font-size: 2.15rem;
}

.about-copy p {
  margin-top: 18px;
  color: var(--muted);
}

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

.value-card {
  padding: 26px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.value-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.value-card h3 {
  margin-top: 16px;
  font-size: 1.18rem;
}

.value-card p {
  margin-top: 10px;
  color: var(--muted);
}

.value-card .icon-tile {
  margin-bottom: 0;
  color: var(--brand);
  background: rgba(0, 65, 235, 0.09);
  border-color: rgba(0, 65, 235, 0.14);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.contact-panel {
  padding: 30px;
}

.contact-panel-dark {
  color: rgba(255, 255, 255, 0.78);
  background: linear-gradient(145deg, #071225 0%, #08245d 60%, #0041eb 100%);
  border-color: rgba(255, 255, 255, 0.14);
}

.contact-panel h2 {
  font-size: 1.45rem;
}

.contact-panel-dark h2,
.contact-panel-dark .contact-item strong,
.contact-panel-dark .qr-card strong {
  color: var(--surface);
}

.contact-panel-dark .contact-item span {
  color: rgba(255, 255, 255, 0.76);
}

.contact-panel-dark .contact-item i {
  color: var(--surface);
  background: rgba(255, 255, 255, 0.14);
}

.contact-list {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.contact-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
}

.contact-item i {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  background: rgba(0, 65, 235, 0.08);
  border-radius: 8px;
}

.contact-item strong {
  display: block;
  color: var(--ink);
}

.contact-item span {
  display: block;
  color: var(--muted);
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.qr-card {
  min-height: 220px;
  padding: 18px;
  display: grid;
  place-items: center;
  text-align: center;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.contact-panel-dark .qr-card {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.16);
}

.qr-card img {
  width: 132px;
  height: 132px;
  object-fit: cover;
  border-radius: 6px;
  transition: transform 0.2s ease;
}

.qr-card:hover img {
  transform: scale(1.06);
}

.qr-card strong {
  display: block;
  margin-top: 12px;
  color: var(--ink);
}

.brief-form {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field label {
  color: var(--ink);
  font-weight: 700;
}

.form-field small {
  color: var(--muted);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 13px;
  color: var(--text);
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  background: var(--surface);
  border-color: rgba(0, 65, 235, 0.68);
  box-shadow: 0 0 0 4px rgba(0, 65, 235, 0.12);
}

.form-status {
  min-height: 28px;
  color: var(--teal);
  font-weight: 700;
}

.article-detail {
  background: var(--surface);
}

.article-shell {
  max-width: 920px;
  margin: 0 auto;
}

.article-hero-image {
  aspect-ratio: 1200 / 630;
  margin-bottom: 36px;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.article-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.76);
}

.prose {
  color: #334155;
  font-size: 1.04rem;
  line-height: 1.85;
}

.prose h2 {
  margin-top: 38px;
  font-size: 1.65rem;
}

.prose p {
  margin-top: 14px;
}

.prose ul {
  margin: 16px 0 0;
  padding-left: 1.2em;
}

.prose li + li {
  margin-top: 8px;
}

.insight-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 32px 0;
}

.insight-point {
  padding: 18px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.insight-point strong {
  display: block;
  color: var(--ink);
}

.insight-point span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.site-footer {
  color: rgba(255, 255, 255, 0.74);
  background: var(--dark);
  border-top: 4px solid var(--brand);
}

.footer-grid {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 42px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 30px;
}

.footer-brand img {
  width: 118px;
  filter: brightness(0) invert(1);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
}

.footer-links a {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.reveal {
  opacity: 1;
  transform: none;
  animation: reveal-in 0.62s ease both;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes reveal-in {
  from {
    opacity: 0.01;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (max-width: 1024px) {
  .hero-title {
    font-size: 3.2rem;
  }

  .metrics-grid,
  .service-grid,
  .featured-grid,
  .value-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .proof-layout,
  .about-layout,
  .contact-grid,
  .maintenance-intro,
  .maintenance-about-grid,
  .maintenance-method-grid {
    grid-template-columns: 1fr;
  }

  .maintenance-about-media img {
    width: min(100%, 440px);
  }

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

  .article-card {
    grid-template-columns: 260px 1fr;
  }

  .insight-points {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .nav-wrap {
    width: min(100% - 28px, var(--max));
    min-height: 64px;
  }

  .brand img {
    width: 108px;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: fixed;
    inset: 64px 0 auto 0;
    display: grid;
    gap: 0;
    padding: 14px;
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
    transform: translateY(-140%);
    transition: transform 0.25s ease;
  }

  .nav-links.is-open {
    transform: translateY(0);
  }

  .nav-links a {
    width: 100%;
    justify-content: center;
  }

  .nav-links a.nav-emphasis {
    justify-content: center;
  }

  .hero {
    min-height: 86dvh;
  }

  .hero-inner {
    width: min(100% - 28px, var(--max));
    padding: 128px 0 88px;
  }

  .hero-title {
    font-size: 2.45rem;
  }

  .hero-promise {
    font-size: 1.18rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-proof {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .hero-proof span {
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .section {
    padding: 64px 0;
  }

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

  .section-title,
  .proof-copy h2,
  .cta-layout h2,
  .about-copy h1,
  .about-copy h2 {
    font-size: 1.8rem;
  }

  .metrics-grid,
  .service-grid,
  .case-grid,
  .featured-grid,
  .value-grid,
  .field-grid,
  .qr-grid,
  .maintenance-pain-grid,
  .maintenance-service-grid {
    grid-template-columns: 1fr;
  }

  .maintenance-about {
    padding-top: 112px;
  }

  .maintenance-about-grid {
    gap: 30px;
  }

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

  .maintenance-stats div {
    min-height: 104px;
    padding: 16px 12px;
  }

  .maintenance-about-media img {
    width: min(100%, 330px);
  }

  .maintenance-pain-card,
  .maintenance-image-card div {
    padding: 22px;
  }

  .maintenance-image-card,
  .maintenance-image-card div {
    min-height: 330px;
  }

  .maintenance-service-tile {
    min-height: 184px;
  }

  .maintenance-service-tile h3 {
    font-size: 1.28rem;
  }

  .metric-card {
    min-height: 136px;
  }

  .page-cover {
    min-height: 34dvh;
    padding: 124px 0 56px;
  }

  .page-cover h1 {
    font-size: 2.2rem;
  }

  .maintenance-cover {
    min-height: 42dvh;
  }

  .maintenance-intro {
    gap: 28px;
  }

  .maintenance-panel {
    padding: 22px;
  }

  .maintenance-panel-head {
    align-items: flex-start;
  }

  .maintenance-bridge {
    padding-top: 26px;
    text-align: left;
  }

  .maintenance-bridge h2 {
    font-size: 1.8rem;
  }

  .maintenance-bridge-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .article-card {
    grid-template-columns: 1fr;
  }

  .article-media {
    aspect-ratio: 16 / 9;
  }

  .cta-layout,
  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .process-item {
    grid-template-columns: 1fr;
  }

  .article-nav {
    flex-direction: column;
  }
}