:root {
  --bg: #071225;
  --bg-deep: #030814;
  --surface: #ffffff;
  --surface-soft: #f3f7fc;
  --line: #d8e2ef;
  --text: #0c1930;
  --muted: #60708a;
  --blue: #1677ff;
  --cyan: #18d8ff;
  --cobalt: #1c4fff;
  --amber: #ffb23e;
  --shadow: 0 24px 70px rgba(6, 30, 70, 0.14);
  --max: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  background: #fff;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 48px, var(--max));
  height: 72px;
  margin: 18px auto 0;
  padding: 0 18px 0 20px;
  color: #fff;
  background: rgba(4, 12, 28, 0.68);
  border: 1px solid rgba(120, 181, 255, 0.22);
  border-radius: 8px;
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

.brand,
.main-nav,
.hero-actions,
.hero-points,
.service-list,
.section-heading,
.value-band,
.contact-cta,
.footer-links,
.copyright {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 800;
}

.brand-mark {
  position: relative;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: conic-gradient(from 220deg, var(--cyan), var(--blue), var(--amber), var(--cyan));
  box-shadow: 0 0 26px rgba(24, 216, 255, 0.44);
}

.brand-mark::before,
.brand-mark::after,
.brand-mark span {
  content: "";
  position: absolute;
  border-radius: 999px;
}

.brand-mark::before {
  inset: 9px;
  background: var(--bg);
}

.brand-mark::after {
  width: 28px;
  height: 8px;
  left: 7px;
  top: 11px;
  background: #eaf8ff;
  transform: rotate(-25deg);
}

.brand-mark span {
  width: 18px;
  height: 4px;
  left: 11px;
  bottom: 10px;
  background: var(--amber);
  transform: rotate(-28deg);
}

.brand-name {
  font-size: 21px;
  letter-spacing: 0;
}

.main-nav {
  gap: 36px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
}

.main-nav a {
  transition: color 0.2s ease;
}

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

.header-action,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  border-radius: 6px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.header-action {
  padding: 0 20px;
  color: #071225;
  background: linear-gradient(135deg, #ffffff, #bfeeff);
}

.btn {
  min-width: 132px;
  padding: 0 24px;
  font-size: 15px;
}

.btn:hover,
.header-action:hover {
  transform: translateY(-2px);
}

.btn.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 18px 36px rgba(22, 119, 255, 0.35);
}

.btn.ghost {
  color: #e7f5ff;
  border: 1px solid rgba(231, 245, 255, 0.45);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: 152px 24px 78px;
  color: #fff;
  background:
    radial-gradient(circle at 73% 34%, rgba(24, 216, 255, 0.24), transparent 30%),
    radial-gradient(circle at 12% 64%, rgba(28, 79, 255, 0.26), transparent 34%),
    linear-gradient(145deg, #051022 0%, #081b38 42%, #030814 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.45;
  background-image:
    linear-gradient(rgba(77, 166, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77, 166, 255, 0.08) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(to bottom, #000 55%, transparent);
}

.hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: 54px;
  width: 58%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--blue), transparent);
  box-shadow: 0 0 42px var(--cyan);
  transform: rotate(-7deg);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
  gap: 52px;
  align-items: center;
  width: min(100%, var(--max));
  margin: 0 auto;
}

.hero h1 {
  max-width: 640px;
  margin: 0;
  font-size: clamp(40px, 4.4vw, 64px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero h1 span {
  display: block;
}

.hero-lead {
  max-width: 560px;
  margin: 24px 0 0;
  color: rgba(239, 248, 255, 0.76);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  gap: 16px;
  margin-top: 34px;
}

.hero-points {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 44px;
}

.hero-points span {
  padding: 10px 14px;
  color: #cfeaff;
  font-size: 13px;
  border: 1px solid rgba(107, 174, 255, 0.24);
  border-radius: 6px;
  background: rgba(5, 20, 44, 0.66);
}

.hero-visual {
  position: relative;
  min-height: 488px;
  perspective: 900px;
}

.orbit {
  position: absolute;
  left: 50%;
  top: 52%;
  border: 1px solid rgba(24, 216, 255, 0.45);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotateX(66deg);
  box-shadow: 0 0 50px rgba(24, 216, 255, 0.24);
}

.orbit-one {
  width: 430px;
  height: 430px;
}

.orbit-two {
  width: 570px;
  height: 570px;
  border-color: rgba(22, 119, 255, 0.28);
}

.cube {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 238px;
  height: 238px;
  transform: translate(-50%, -50%) rotateX(58deg) rotateZ(45deg);
  transform-style: preserve-3d;
}

.cube span {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(173, 226, 255, 0.58);
  background: linear-gradient(135deg, rgba(21, 114, 255, 0.72), rgba(24, 216, 255, 0.1));
  box-shadow: inset 0 0 48px rgba(24, 216, 255, 0.32), 0 0 60px rgba(22, 119, 255, 0.28);
}

.cube span:nth-child(2) {
  transform: translateZ(84px) scale(0.72);
}

.cube span:nth-child(3) {
  transform: translateZ(152px) scale(0.45);
  background: rgba(180, 235, 255, 0.5);
}

.code-panel {
  position: absolute;
  width: 190px;
  padding: 18px;
  border: 1px solid rgba(103, 184, 255, 0.38);
  border-radius: 8px;
  background: rgba(7, 22, 50, 0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.code-panel b {
  color: #fff;
  font-size: 22px;
}

.code-panel p {
  margin: 8px 0 14px;
  color: #9ccfff;
  font-size: 13px;
}

.code-panel i {
  display: block;
  height: 6px;
  margin-top: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.panel-left {
  left: 0;
  top: 62px;
}

.panel-right {
  right: 0;
  bottom: 84px;
}

.service-strip,
.solutions,
.capabilities,
.process,
.contact-cta,
.site-footer {
  padding: 70px 24px;
}

.service-strip {
  position: relative;
  z-index: 2;
  width: min(100% - 48px, var(--max));
  margin: -54px auto 0;
  padding: 34px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section-heading {
  justify-content: space-between;
  gap: 30px;
  width: min(100%, var(--max));
  margin: 0 auto 32px;
}

.section-heading.compact {
  align-items: flex-start;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 26px;
}

.section-heading p,
.section-heading span {
  max-width: 320px;
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.section-heading > p:first-child {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.2;
}

.section-heading a {
  color: var(--blue);
  font-weight: 800;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.service-list article,
.solution-grid article,
.capability-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.service-list article {
  padding: 20px;
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 16px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  border-radius: 8px;
  background: #eef6ff;
}

h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

article p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.solutions,
.process {
  background: #fff;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  width: min(100%, var(--max));
  margin: 0 auto;
}

.solution-grid article {
  overflow: hidden;
  box-shadow: 0 14px 40px rgba(16, 49, 92, 0.08);
}

.solution-grid h3,
.solution-grid p {
  padding: 0 20px;
}

.solution-grid p {
  padding-bottom: 24px;
}

.solution-art {
  height: 158px;
  margin-bottom: 20px;
  background:
    linear-gradient(135deg, rgba(7, 18, 37, 0.16), rgba(7, 18, 37, 0)),
    radial-gradient(circle at 24% 28%, rgba(24, 216, 255, 0.65), transparent 22%),
    linear-gradient(135deg, #0b1c3d, #1677ff);
}

.solution-art.office {
  background:
    linear-gradient(135deg, rgba(7, 18, 37, 0.08), rgba(7, 18, 37, 0.18)),
    radial-gradient(circle at 75% 24%, rgba(255, 178, 62, 0.45), transparent 20%),
    linear-gradient(135deg, #edf5ff, #7fb8ff);
}

.solution-art.supply {
  background:
    linear-gradient(135deg, rgba(3, 8, 20, 0.1), rgba(3, 8, 20, 0.12)),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.2) 0 14px, transparent 14px 28px),
    linear-gradient(135deg, #1d6dff, #89d8ff);
}

.solution-art.saas {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.22) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.16) 1px, transparent 1px),
    linear-gradient(135deg, #071225, #1c4fff);
  background-size: auto, 34px 34px, auto;
}

.capabilities {
  background: var(--surface-soft);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  width: min(100%, var(--max));
  margin: 0 auto;
}

.capability-grid article {
  position: relative;
  min-height: 132px;
  padding: 24px;
  overflow: hidden;
}

.capability-grid article::before {
  content: "";
  position: absolute;
  right: -28px;
  top: -28px;
  width: 92px;
  height: 92px;
  border: 1px solid rgba(22, 119, 255, 0.28);
  border-radius: 50%;
  background: rgba(22, 119, 255, 0.06);
}

.capability-grid b {
  display: block;
  margin-bottom: 12px;
  font-size: 18px;
}

.capability-grid span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.process-line {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.process-line li {
  position: relative;
  padding: 24px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.process-line li::before {
  content: counter(list-item, decimal-leading-zero);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  color: #fff;
  font-size: 12px;
  font-weight: 900;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
}

.process-line b,
.process-line span {
  display: block;
}

.process-line span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.value-band {
  justify-content: space-between;
  gap: 42px;
  padding: 58px calc((100% - min(100%, var(--max))) / 2);
  color: #fff;
  background:
    radial-gradient(circle at 92% 40%, rgba(24, 216, 255, 0.24), transparent 24%),
    linear-gradient(135deg, #06122a, #082c62 60%, #030814);
}

.value-band > div:first-child {
  padding-left: 24px;
}

.value-band p {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.value-band h2 {
  max-width: 420px;
  margin: 0;
  font-size: 32px;
}

.value-band dl {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 24px;
  margin: 0;
  padding-right: 24px;
}

.value-band dt {
  color: #ffe0a3;
  font-size: 38px;
  font-weight: 900;
}

.value-band dd {
  margin: 6px 0 0;
  color: #c8d9ed;
}

.contact-cta {
  justify-content: space-between;
  gap: 30px;
  width: min(100% - 48px, var(--max));
  margin: 0 auto;
  padding: 54px 64px;
  border-radius: 8px;
  background:
    radial-gradient(circle at 78% 50%, rgba(24, 216, 255, 0.24), transparent 24%),
    linear-gradient(135deg, #edf6ff, #ffffff);
  box-shadow: var(--shadow);
}

.contact-cta h2 {
  margin: 0 0 12px;
  font-size: 34px;
}

.contact-cta p {
  max-width: 660px;
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.site-footer {
  margin-top: 72px;
  color: #c5d5e8;
  background: var(--bg-deep);
}

.footer-brand,
.footer-links,
.copyright {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.footer-brand {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 40px;
  align-items: center;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(160, 202, 255, 0.16);
}

.footer-brand img {
  display: block;
  width: 260px;
  height: 92px;
  object-fit: contain;
  object-position: center;
  border-radius: 8px;
  background: #071225;
}

.footer-brand p {
  max-width: 620px;
  margin: 0;
  line-height: 1.8;
}

.footer-links {
  justify-content: flex-end;
  gap: 88px;
  padding: 34px 0;
}

.footer-links h3 {
  color: #fff;
  font-size: 16px;
}

.footer-links a {
  display: block;
  margin-top: 10px;
  color: #9cafc8;
  font-size: 14px;
}

.footer-links a:hover,
.copyright a:hover {
  color: var(--cyan);
}

.copyright {
  justify-content: center;
  gap: 22px;
  padding-top: 24px;
  border-top: 1px solid rgba(160, 202, 255, 0.16);
  color: #8da2bd;
  font-size: 14px;
}

@media (max-width: 980px) {
  .site-header {
    width: calc(100% - 24px);
    height: auto;
    min-height: 66px;
    margin-top: 12px;
    flex-wrap: wrap;
    gap: 14px;
    padding: 14px;
  }

  .main-nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    overflow-x: auto;
    white-space: nowrap;
  }

  .hero {
    padding-top: 180px;
  }

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

  .hero-visual {
    min-height: 390px;
  }

  .service-list,
  .solution-grid,
  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-line {
    grid-template-columns: repeat(3, 1fr);
  }

  .value-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 50px 24px;
  }

  .value-band > div:first-child,
  .value-band dl {
    padding: 0;
  }

  .contact-cta,
  .footer-brand {
    grid-template-columns: 1fr;
  }

  .contact-cta {
    flex-direction: column;
    align-items: flex-start;
    padding: 42px 32px;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: absolute;
  }

  .header-action {
    display: none;
  }

  .brand-name {
    font-size: 18px;
  }

  .main-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    row-gap: 10px;
    white-space: normal;
  }

  .main-nav a {
    font-size: 13px;
  }

  .hero {
    min-height: auto;
    padding: 172px 18px 70px;
  }

  .hero h1 {
    font-size: 38px;
  }

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

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

  .hero-visual {
    min-height: 330px;
  }

  .orbit-one {
    width: 280px;
    height: 280px;
  }

  .orbit-two {
    width: 360px;
    height: 360px;
  }

  .cube {
    width: 158px;
    height: 158px;
  }

  .code-panel {
    width: 150px;
    padding: 14px;
  }

  .panel-right {
    bottom: 30px;
  }

  .service-strip {
    width: calc(100% - 24px);
    padding: 24px;
  }

  .service-list,
  .solution-grid,
  .capability-grid,
  .process-line,
  .value-band dl {
    grid-template-columns: 1fr;
  }

  .section-heading {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-cta {
    width: calc(100% - 24px);
    padding: 32px 22px;
  }

  .contact-cta h2 {
    font-size: 28px;
  }

  .footer-brand img {
    width: 220px;
    height: 78px;
  }

  .footer-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
}