:root {
  --ink: #f7fbff;
  --muted: #9eb2c5;
  --line: rgba(255, 255, 255, 0.14);
  --panel: rgba(8, 18, 31, 0.78);
  --panel-strong: rgba(13, 28, 45, 0.92);
  --cyan: #38dce7;
  --green: #76f2a7;
  --amber: #ffb85c;
  --coral: #ff6d78;
  --bg: #061018;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 18%, rgba(56, 220, 231, 0.16), transparent 26rem),
    radial-gradient(circle at 88% 8%, rgba(255, 184, 92, 0.12), transparent 24rem),
    linear-gradient(135deg, #050910 0%, #061018 43%, #132116 100%);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

#neuralCanvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.55;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 12, 20, 0.78);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.hero-actions,
.metric-strip,
.signal-header {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(56, 220, 231, 0.45);
  background: linear-gradient(135deg, rgba(56, 220, 231, 0.24), rgba(118, 242, 167, 0.12));
  color: var(--cyan);
  font-weight: 900;
}

.nav-links {
  gap: 30px;
  color: #d5e6f5;
  font-size: 14px;
}

.nav-links a {
  padding: 8px 0;
  border-bottom: 1px solid transparent;
}

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

.header-action,
.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 6px;
  font-weight: 700;
}

.header-action {
  gap: 8px;
  padding: 0 18px;
  color: #061018;
  background: var(--green);
}

.phone-icon,
.arrow-icon {
  position: relative;
  width: 16px;
  height: 16px;
}

.phone-icon::before {
  content: "";
  position: absolute;
  inset: 2px 4px;
  border: 2px solid currentColor;
  border-top: 0;
  border-left: 0;
  transform: rotate(35deg);
}

.arrow-icon::before,
.arrow-icon::after {
  content: "";
  position: absolute;
  top: 7px;
  left: 2px;
  width: 12px;
  height: 2px;
  background: currentColor;
}

.arrow-icon::after {
  width: 7px;
  transform: translate(5px, -3px) rotate(45deg);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(320px, 0.97fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(56px, 8vw, 112px) clamp(20px, 5vw, 72px) 44px;
}

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

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(58px, 10vw, 128px);
  line-height: 0.92;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 720px;
  margin-bottom: 32px;
  color: #cfe0ef;
  font-size: clamp(17px, 2.1vw, 24px);
}

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

.primary-btn {
  gap: 10px;
  padding: 0 24px;
  color: #031015;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 16px 42px rgba(56, 220, 231, 0.22);
}

.secondary-btn {
  padding: 0 24px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: #e7f4ff;
  background: rgba(255, 255, 255, 0.04);
}

.metric-strip {
  flex-wrap: wrap;
  gap: 14px;
}

.metric-strip div {
  min-width: 150px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
}

.metric-strip strong,
.metric-strip span {
  display: block;
}

.metric-strip strong {
  margin-bottom: 2px;
  color: var(--cyan);
  font-size: 22px;
}

.metric-strip span {
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: var(--panel-strong);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(5, 12, 20, 0.14), rgba(5, 12, 20, 0.88)),
    linear-gradient(90deg, rgba(56, 220, 231, 0.28), transparent 52%);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
  filter: saturate(1.15) contrast(1.02);
}

.signal-panel {
  position: absolute;
  right: 24px;
  bottom: 24px;
  z-index: 2;
  width: min(330px, calc(100% - 48px));
  padding: 18px;
  border: 1px solid rgba(56, 220, 231, 0.34);
  border-radius: 8px;
  background: rgba(3, 11, 18, 0.78);
  backdrop-filter: blur(14px);
}

.signal-header {
  justify-content: space-between;
  margin-bottom: 16px;
  color: #d5e6f5;
  font-size: 13px;
}

.signal-header b {
  color: var(--green);
  font-size: 22px;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 9px;
}

.signal-grid span {
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(56, 220, 231, 0.36), rgba(118, 242, 167, 0.06));
  animation: pulse 2.8s ease-in-out infinite;
}

.signal-grid span:nth-child(3n) {
  background: linear-gradient(180deg, rgba(255, 184, 92, 0.42), rgba(255, 109, 120, 0.08));
  animation-delay: 0.5s;
}

.signal-grid span:nth-child(4n) {
  animation-delay: 1s;
}

.section,
.feature-band,
.contact-section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(68px, 8vw, 112px) 0;
}

.intro {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  border-top: 1px solid var(--line);
}

.intro > p,
.feature-copy p,
.contact-section p {
  color: #bfd0df;
  font-size: 18px;
}

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

h2 {
  margin-bottom: 0;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.08;
  letter-spacing: 0;
}

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

.service-card {
  min-height: 250px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025)),
    rgba(6, 16, 24, 0.76);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 220, 231, 0.46);
  background:
    linear-gradient(180deg, rgba(56, 220, 231, 0.12), rgba(255, 255, 255, 0.035)),
    rgba(6, 16, 24, 0.88);
}

.card-icon {
  display: block;
  position: relative;
  width: 52px;
  height: 52px;
  margin-bottom: 28px;
  border: 1px solid rgba(56, 220, 231, 0.34);
  border-radius: 8px;
  background: rgba(56, 220, 231, 0.08);
}

.card-icon::before,
.card-icon::after {
  content: "";
  position: absolute;
}

.recharge::before {
  inset: 13px 12px;
  border: 2px solid var(--cyan);
  border-top-color: transparent;
  transform: rotate(-35deg);
}

.rights::before {
  inset: 12px;
  border: 2px solid var(--green);
}

.rights::after {
  top: 12px;
  left: 24px;
  width: 2px;
  height: 28px;
  background: var(--green);
}

.card::before {
  inset: 15px 10px;
  border: 2px solid var(--amber);
}

.card::after {
  left: 15px;
  right: 15px;
  top: 25px;
  height: 2px;
  background: var(--amber);
}

.media::before {
  inset: 12px;
  border: 2px solid var(--coral);
  border-radius: 50%;
}

.media::after {
  left: 25px;
  top: 8px;
  width: 2px;
  height: 36px;
  background: var(--coral);
  transform: rotate(45deg);
}

.points::before {
  width: 8px;
  height: 8px;
  left: 12px;
  top: 20px;
  background: var(--green);
  box-shadow: 12px -8px 0 var(--cyan), 25px 7px 0 var(--amber);
}

.solution::before {
  inset: 12px;
  border: 2px solid var(--cyan);
  transform: rotate(45deg);
}

.service-card h3,
.advantage-list h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.service-card p,
.advantage-list p,
.timeline p {
  margin-bottom: 0;
  color: var(--muted);
}

.feature-band {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(30px, 6vw, 70px);
  align-items: start;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-copy {
  position: sticky;
  top: 104px;
}

.feature-copy h2 {
  margin-bottom: 22px;
}

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

.advantage-list div {
  padding: 28px;
  border-left: 3px solid var(--cyan);
  background: linear-gradient(90deg, rgba(56, 220, 231, 0.12), rgba(255, 255, 255, 0.03));
}

.advantage-list div:nth-child(2) {
  border-color: var(--green);
}

.advantage-list div:nth-child(3) {
  border-color: var(--amber);
}

.advantage-list span {
  display: block;
  margin-bottom: 12px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
}

.timeline div {
  min-height: 190px;
  padding: 26px;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.timeline div:last-child {
  border-right: 0;
}

.timeline strong {
  display: block;
  margin-bottom: 18px;
  color: var(--green);
  font-size: 21px;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: 34px;
  align-items: center;
}

.contact-section h2 {
  margin-bottom: 20px;
}

.contact-panel {
  display: grid;
  gap: 14px;
  padding: 26px;
  border: 1px solid rgba(118, 242, 167, 0.28);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(118, 242, 167, 0.12), rgba(255, 255, 255, 0.04));
}

.contact-panel a,
.contact-panel p {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 16px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(2, 8, 14, 0.46);
  word-break: break-word;
}

.contact-panel span {
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer a {
  color: #cfe0ef;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.55;
    transform: scaleY(0.78);
  }
  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero,
  .intro,
  .feature-band,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 420px;
  }

  .feature-copy {
    position: static;
  }

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

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

  .timeline div:nth-child(2) {
    border-right: 0;
  }

  .timeline div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 64px;
    padding-inline: 16px;
  }

  .brand span:last-child {
    max-width: 96px;
    white-space: nowrap;
  }

  .header-action {
    min-height: 40px;
    padding: 0 12px;
    font-size: 13px;
  }

  .hero,
  .section,
  .feature-band,
  .contact-section {
    width: auto;
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero {
    padding-top: 42px;
  }

  h1 {
    font-size: clamp(54px, 18vw, 78px);
  }

  .hero-lead,
  .intro > p,
  .feature-copy p,
  .contact-section p {
    font-size: 16px;
  }

  .primary-btn,
  .secondary-btn {
    width: 100%;
  }

  .metric-strip div {
    width: 100%;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 360px;
  }

  .signal-panel {
    right: 14px;
    bottom: 14px;
    width: calc(100% - 28px);
  }

  .service-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .timeline div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .timeline div:last-child {
    border-bottom: 0;
  }

  .site-footer {
    flex-direction: column;
    padding-inline: 16px;
  }
}