:root {
  --ink: #102033;
  --muted: #627085;
  --line: #dce7f3;
  --soft: #f4f8fc;
  --brand: #1a9fe3;
  --brand-deep: #24429c;
  --cyan: #67c7e7;
  --white: #ffffff;
  --night: #0d1930;
  --shadow: 0 24px 70px rgba(24, 54, 92, 0.15);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  min-height: 76px;
  padding: 14px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(220, 231, 243, 0.7);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
  transition:
    box-shadow 0.2s ease,
    min-height 0.2s ease;
}

.site-header.is-scrolled {
  min-height: 66px;
  box-shadow: 0 12px 32px rgba(18, 38, 65, 0.08);
}

.brand img {
  width: 158px;
  height: auto;
}

.nav {
  display: flex;
  justify-content: center;
  gap: clamp(18px, 3vw, 42px);
  color: #314057;
  font-size: 15px;
}

.nav a {
  padding: 8px 0;
}

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

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 6px;
  font-weight: 700;
  white-space: nowrap;
}

.header-cta,
.button.primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  box-shadow: 0 12px 28px rgba(26, 159, 227, 0.25);
}

.button.secondary {
  color: var(--brand-deep);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: clamp(36px, 6vw, 80px);
  min-height: calc(100vh - 76px);
  padding: clamp(56px, 8vw, 104px) clamp(20px, 5vw, 72px) 64px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(246, 250, 254, 0.96), rgba(255, 255, 255, 0.72)),
    repeating-linear-gradient(90deg, rgba(26, 159, 227, 0.08) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(0deg, rgba(36, 66, 156, 0.06) 0 1px, transparent 1px 92px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 860px;
  margin-bottom: 24px;
  font-size: clamp(40px, 5.3vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.28;
}

.hero-lead {
  max-width: 680px;
  color: var(--muted);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 720px;
  margin: 0;
}

.hero-stats div {
  padding: 18px;
  border: 1px solid rgba(220, 231, 243, 0.9);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.hero-stats strong {
  display: block;
  color: var(--brand-deep);
  font-size: 26px;
  font-weight: 900;
}

.hero-stats span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 14px;
}

.hero-visual {
  position: relative;
}

.platform-window {
  position: relative;
  border: 1px solid rgba(135, 180, 220, 0.45);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.window-top {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.window-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #a8c0d9;
}

.window-top strong {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 14px;
  padding: 16px;
  background:
    linear-gradient(135deg, rgba(247, 251, 255, 0.96), rgba(228, 244, 255, 0.75));
}

.panel {
  min-height: 150px;
  padding: 18px;
  border: 1px solid rgba(220, 231, 243, 0.9);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
}

.panel p {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 13px;
}

.schedule-panel {
  grid-row: span 2;
}

.schedule-panel h2 {
  font-size: 25px;
}

.timeline-row {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 12px;
  align-items: center;
  margin-top: 13px;
  padding: 12px;
  border-radius: 6px;
  background: #f3f7fb;
}

.timeline-row span {
  color: var(--brand);
  font-weight: 800;
}

.timeline-row.active {
  color: var(--white);
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
}

.timeline-row.active span {
  color: var(--white);
}

.ring {
  display: grid;
  place-items: center;
  width: 122px;
  height: 122px;
  margin: 8px auto 0;
  border-radius: 50%;
  background: conic-gradient(var(--brand) 0 86%, #dce7f3 86% 100%);
}

.ring span {
  display: grid;
  place-items: center;
  width: 86px;
  height: 86px;
  border-radius: 50%;
  background: var(--white);
  color: var(--brand-deep);
  font-size: 24px;
  font-weight: 900;
}

.check-panel h3 {
  margin-bottom: 4px;
  color: var(--brand-deep);
  font-size: 42px;
}

.trend {
  color: #11855d;
  font-weight: 700;
}

.bar-chart {
  display: flex;
  align-items: end;
  gap: 10px;
  height: 95px;
}

.bar-chart span {
  flex: 1;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--cyan), var(--brand-deep));
}

.section {
  padding: clamp(62px, 8vw, 112px) clamp(20px, 5vw, 72px);
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: start;
  border-top: 1px solid var(--line);
}

.intro p:last-child {
  color: var(--muted);
  font-size: 18px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading p:last-child {
  color: var(--muted);
  font-size: 17px;
}

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

.service-card {
  min-height: 252px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(26, 159, 227, 0.4);
  box-shadow: 0 18px 46px rgba(24, 54, 92, 0.11);
}

.service-card span {
  display: inline-flex;
  margin-bottom: 24px;
  color: var(--brand);
  font-weight: 900;
}

.service-card p,
.value-list p,
.process-list p,
.contact-card p {
  color: var(--muted);
}

.dark-band {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(13, 25, 48, 0.96), rgba(22, 58, 104, 0.94)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 86px);
}

.dark-band .section-heading p:last-child {
  color: #b8c7da;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.scene-grid article {
  display: grid;
  min-height: 112px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  color: #eef7ff;
  font-size: 20px;
  font-weight: 800;
}

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

.value-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.value-list article {
  padding: 26px;
  border-left: 4px solid var(--brand);
  border-radius: 8px;
  background: var(--white);
}

.cases-section {
  background: linear-gradient(180deg, #ffffff, #f4f8fc);
}

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

.case-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 18px 42px rgba(24, 54, 92, 0.08);
}

.case-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #eaf3fb;
}

.case-card div {
  padding: 22px 24px 24px;
}

.case-card p {
  margin-bottom: 8px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 900;
}

.case-card h3 {
  margin-bottom: 12px;
}

.case-card span {
  color: var(--muted);
  font-size: 15px;
}

.gallery-section {
  background: var(--night);
  color: var(--white);
}

.gallery-section .section-heading p:last-child {
  color: #b8c7da;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.gallery-grid figure {
  position: relative;
  min-height: 238px;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: #182640;
}

.gallery-grid img {
  width: 100%;
  height: 100%;
  min-height: 238px;
  object-fit: cover;
  transition: transform 0.25s ease;
}

.gallery-grid figure:hover img {
  transform: scale(1.035);
}

.gallery-large {
  grid-column: span 2;
  grid-row: span 2;
}

.gallery-grid figcaption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--white);
  background: rgba(13, 25, 48, 0.72);
  font-weight: 800;
  backdrop-filter: blur(12px);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  position: relative;
  min-height: 220px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.process-list span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  border-radius: 50%;
  color: var(--white);
  background: var(--brand-deep);
  font-weight: 900;
}

.cta-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(62px, 8vw, 112px) clamp(20px, 5vw, 72px);
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(28, 92, 153, 0.94), rgba(12, 24, 48, 0.96)),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 88px);
}

.cta-section h2 {
  max-width: 820px;
}

.cta-section p {
  color: #d9e8f7;
}

.contact-card {
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.contact-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 20px;
}

.contact-list a,
.contact-list span {
  display: block;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  color: #f5fbff;
  background: rgba(255, 255, 255, 0.08);
}

.qr-block {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  font-weight: 800;
}

.qr-block img {
  width: 118px;
  height: 118px;
  border-radius: 6px;
}

.contact-note {
  margin-bottom: 0;
  font-size: 14px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer img {
  width: 132px;
  margin-bottom: 8px;
}

.site-footer p {
  margin-bottom: 0;
}

@media (max-width: 1020px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    display: none;
  }

  .hero,
  .intro,
  .cta-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

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

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

  .cta-section {
    gap: 30px;
  }

  .contact-card {
    max-width: 520px;
  }
}

@media (max-width: 680px) {
  .site-header {
    min-height: 68px;
    padding: 12px 18px;
  }

  .brand img {
    width: 126px;
  }

  .header-cta {
    min-height: 40px;
    padding: 0 14px;
    font-size: 14px;
  }

  .hero {
    padding: 38px 18px 42px;
  }

  h1 {
    font-size: 34px;
    line-height: 1.15;
  }

  .hero-lead {
    font-size: 16px;
  }

  h2 {
    font-size: 28px;
  }

  h3 {
    font-size: 19px;
  }

  .hero-actions {
    margin: 26px 0;
  }

  .button {
    width: 100%;
  }

  .dashboard-grid {
    gap: 10px;
    padding: 10px;
  }

  .panel {
    min-height: auto;
    padding: 14px;
  }

  .schedule-panel h2 {
    font-size: 22px;
  }

  .check-panel h3 {
    font-size: 36px;
  }

  .hero-stats,
  .dashboard-grid,
  .service-grid,
  .scene-grid,
  .case-grid,
  .value-list,
  .process-list {
    grid-template-columns: 1fr;
  }

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

  .gallery-large {
    grid-column: span 1;
    grid-row: span 1;
  }

  .hero-stats div,
  .service-card,
  .value-list article,
  .process-list li,
  .contact-card {
    padding: 22px;
  }

  .section,
  .cta-section {
    padding: 58px 18px;
  }

  .scene-grid article {
    min-height: 88px;
  }

  .site-footer {
    display: block;
  }

  .site-footer > p {
    margin-top: 18px;
  }
}