:root {
  color-scheme: dark;
  --bg: #070b12;
  --bg-2: #0c1321;
  --panel: rgba(11, 20, 34, 0.68);
  --panel-strong: rgba(14, 28, 46, 0.9);
  --line: rgba(146, 241, 255, 0.22);
  --line-bright: rgba(0, 243, 255, 0.72);
  --text: #eef7ff;
  --muted: #9eb3c3;
  --cyan: #00f3ff;
  --green: #55ff9a;
  --amber: #ffc857;
  --magenta: #ff4fd8;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  font-family: "Rajdhani", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 14% 18%, rgba(0, 243, 255, 0.13), transparent 28rem),
    radial-gradient(circle at 82% 22%, rgba(255, 79, 216, 0.1), transparent 24rem),
    linear-gradient(180deg, #05070d 0%, var(--bg) 46%, #080d13 100%);
  color: var(--text);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image:
    linear-gradient(rgba(0, 243, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 243, 255, 0.06) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 82%);
}

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

button,
input,
select {
  font: inherit;
}

.site-shell {
  position: relative;
  overflow: hidden;
}

#topology-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  opacity: 0.88;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 32px));
  margin: 16px auto 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(7, 13, 24, 0.7);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 180px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(0, 243, 255, 0.6);
  border-radius: 6px;
  color: var(--cyan);
  font-weight: 700;
  box-shadow: 0 0 22px rgba(0, 243, 255, 0.22);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1.05rem;
}

.brand small {
  color: var(--muted);
  font-size: 0.72rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #c4d6e4;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: 6px;
}

.nav-links a:hover {
  color: var(--cyan);
  background: rgba(0, 243, 255, 0.08);
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 96px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.72fr);
  align-items: center;
  gap: 42px;
  min-height: calc(100vh - 70px);
  padding-top: 70px;
  padding-bottom: 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: 5.2rem;
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: 3.4rem;
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.32rem;
  line-height: 1.1;
  letter-spacing: 0;
}

.hero-copy,
.section-heading p,
.diagnosis-copy p {
  max-width: 720px;
  color: #bfd0dd;
  font-size: 1.13rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.primary-button,
.ghost-button,
.submit-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  overflow: hidden;
  border-radius: 7px;
  border: 1px solid var(--line-bright);
  cursor: pointer;
}

.primary-button,
.submit-button {
  color: #041015;
  background: linear-gradient(90deg, var(--cyan), var(--green));
  box-shadow: 0 0 30px rgba(0, 243, 255, 0.28);
  font-weight: 700;
}

.primary-button::before,
.submit-button::before {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.55) 45%, transparent 62%);
  transform: translateX(-110%);
  transition: transform 520ms ease;
}

.primary-button:hover::before,
.submit-button:hover::before {
  transform: translateX(110%);
}

.primary-button span,
.submit-button span,
.ghost-button span,
.primary-button i,
.submit-button i,
.ghost-button i {
  position: relative;
  z-index: 1;
}

.ghost-button {
  color: var(--text);
  background: rgba(8, 20, 33, 0.58);
}

.ghost-button:hover {
  color: var(--cyan);
  background: rgba(0, 243, 255, 0.08);
}

.hero-terminal,
.bento-card,
.capability-card,
.roi-panel,
.diagnosis-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-terminal {
  justify-self: end;
  width: min(100%, 420px);
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.24);
}

.terminal-bar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
}

.terminal-bar span:nth-child(2) {
  background: var(--amber);
}

.terminal-bar span:nth-child(3) {
  background: var(--magenta);
}

.terminal-bar strong {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.85rem;
}

.signal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 0;
  background: rgba(0, 243, 255, 0.09);
}

.signal-grid div {
  padding: 24px 18px;
  background: rgba(8, 17, 30, 0.82);
}

.signal-grid dt {
  color: var(--muted);
  font-size: 0.82rem;
}

.signal-grid dd {
  margin: 8px 0 0;
  color: var(--cyan);
  font-size: 2.2rem;
  font-weight: 700;
}

.company-facts {
  margin: 0;
}

.company-facts div {
  padding: 20px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 17, 30, 0.72);
}

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

.company-facts dt {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.86rem;
}

.company-facts dd {
  margin: 0;
  color: #e8f7ff;
  font-size: 1.02rem;
  line-height: 1.55;
}

.section-heading {
  margin-bottom: 36px;
}

.section-heading.wide {
  max-width: 900px;
}

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

.bento-card {
  min-height: 210px;
  padding: 24px;
}

.bento-card.large {
  grid-column: span 2;
  grid-row: span 2;
  min-height: 434px;
  background:
    linear-gradient(135deg, rgba(0, 243, 255, 0.12), rgba(255, 79, 216, 0.08)),
    var(--panel-strong);
}

.bento-card.accent {
  border-color: rgba(85, 255, 154, 0.5);
}

.card-kicker {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--amber);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
}

.bento-card p,
.capability-card p {
  color: var(--muted);
  line-height: 1.65;
}

.tech-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.tech-row span {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: #d9faff;
  background: rgba(0, 243, 255, 0.07);
}

.metric {
  display: inline-block;
  color: var(--cyan);
  font-size: 3.7rem;
  font-weight: 700;
  line-height: 0.9;
}

.metric-unit {
  color: var(--green);
  font-size: 1.4rem;
  font-weight: 700;
}

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

.capability-card {
  min-height: 280px;
  padding: 24px;
}

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

.capability-card i {
  width: 32px;
  height: 32px;
  margin-bottom: 28px;
  color: var(--cyan);
  filter: drop-shadow(0 0 12px rgba(0, 243, 255, 0.4));
}

.roi-panel {
  margin-top: 16px;
  overflow: hidden;
}

.roi-row {
  display: grid;
  grid-template-columns: 0.6fr 1fr 1fr;
  gap: 20px;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}

.roi-row:last-child {
  border-bottom: 0;
}

.roi-row span {
  color: var(--amber);
  font-weight: 700;
}

.roi-row p {
  margin: 0;
  color: var(--muted);
}

.roi-row strong {
  color: var(--green);
}

.diagnosis-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 36px;
  align-items: start;
  padding-bottom: 120px;
}

.process-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  max-width: 520px;
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 243, 255, 0.12);
}

.process-strip span {
  padding: 14px 10px;
  text-align: center;
  color: var(--cyan);
  background: rgba(8, 16, 28, 0.82);
}

.diagnosis-form {
  padding: 24px;
}

fieldset {
  margin: 0 0 22px;
  padding: 0;
  border: 0;
}

legend,
.field span {
  display: block;
  margin-bottom: 10px;
  color: #d6e8f5;
  font-weight: 700;
}

.tag-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.tag-grid input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.tag-grid span {
  display: grid;
  place-items: center;
  min-height: 50px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: #c8d9e5;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  text-align: center;
}

.tag-grid input:checked + span {
  border-color: var(--line-bright);
  color: var(--cyan);
  background: rgba(0, 243, 255, 0.1);
  box-shadow: 0 0 22px rgba(0, 243, 255, 0.16);
}

.field {
  display: block;
  margin-bottom: 18px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

input,
select {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  outline: 0;
  color: var(--text);
  background: rgba(3, 9, 17, 0.72);
}

select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--cyan) 50%),
    linear-gradient(135deg, var(--cyan) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 21px,
    calc(100% - 12px) 21px;
  background-size:
    6px 6px,
    6px 6px;
  background-repeat: no-repeat;
}

input:focus,
select:focus {
  border-color: var(--line-bright);
  box-shadow: 0 0 0 3px rgba(0, 243, 255, 0.13), 0 0 24px rgba(0, 243, 255, 0.14);
}

.submit-button {
  width: 100%;
  margin-top: 4px;
}

.submit-button.is-loading {
  color: var(--cyan);
  background:
    repeating-linear-gradient(90deg, rgba(0, 243, 255, 0.08) 0 8px, rgba(85, 255, 154, 0.08) 8px 16px),
    rgba(5, 14, 24, 0.96);
}

.submit-status {
  min-height: 24px;
  margin: 14px 0 0;
  color: var(--green);
}

@media (max-width: 940px) {
  h1 {
    font-size: 4.1rem;
  }

  h2 {
    font-size: 2.8rem;
  }

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

  .hero-terminal {
    justify-self: stretch;
  }

  .bento-grid,
  .capability-grid,
  .capability-grid-three {
    grid-template-columns: 1fr 1fr;
  }

  .bento-card.large {
    grid-column: span 2;
    min-height: 320px;
  }

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

@media (max-width: 680px) {
  h1 {
    font-size: 2.9rem;
  }

  h2 {
    font-size: 2.1rem;
  }

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

  .nav-links {
    width: 100%;
    justify-content: space-between;
  }

  .nav-links a {
    padding-inline: 6px;
    font-size: 0.92rem;
  }

  .section {
    width: min(100% - 24px, 1180px);
    padding: 68px 0;
  }

  .hero {
    min-height: auto;
    padding-top: 54px;
  }

  .hero-actions,
  .primary-button,
  .ghost-button {
    width: 100%;
  }

  .bento-grid,
  .capability-grid,
  .capability-grid-three,
  .tag-grid,
  .roi-row {
    grid-template-columns: 1fr;
  }

  .bento-card.large {
    grid-column: auto;
  }

  .signal-grid,
  .process-strip {
    grid-template-columns: 1fr 1fr;
  }
}

/* --- Footer Styles --- */
.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 80px 0 32px;
  border-top: 1px solid var(--line);
  position: relative;
  z-index: 10;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 54px;
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.footer-contact i {
  width: 18px;
  height: 18px;
  color: var(--cyan);
}

.footer-bottom {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 18px;
  text-align: center;
  color: rgba(158, 179, 195, 0.4);
  font-size: 0.85rem;
  padding-top: 24px;
  border-top: 1px solid rgba(146, 241, 255, 0.08);
}

.footer-bottom a {
  color: rgba(190, 218, 230, 0.64);
}

.footer-bottom a:hover {
  color: var(--cyan);
}

@media (max-width: 680px) {
  .footer-content {
    flex-direction: column;
  }
}