:root {
  --bg: #070b14;
  --bg-soft: #0f1525;
  --panel: rgba(14, 21, 38, 0.82);
  --panel-strong: rgba(11, 17, 31, 0.96);
  --line: rgba(109, 140, 255, 0.16);
  --text: #f3f6ff;
  --muted: #97a3bf;
  --accent: #7f8cff;
  --accent-2: #56d2ff;
  --accent-soft: rgba(127, 140, 255, 0.14);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(96, 118, 255, 0.18), transparent 24%),
    radial-gradient(circle at top right, rgba(86, 210, 255, 0.12), transparent 20%),
    linear-gradient(180deg, #050812 0%, #0b1120 40%, #060912 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.4), transparent 78%);
}

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

button,
a,
input,
textarea {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(127, 140, 255, 0.18);
  background: rgba(7, 11, 20, 0.74);
  color: var(--text);
  border-radius: 16px;
  padding: 14px 16px;
  outline: none;
}

input::placeholder,
textarea::placeholder {
  color: #6f7b98;
}

textarea {
  resize: vertical;
}

.container {
  width: min(1320px, calc(100% - 48px));
  margin: 0 auto;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(20px);
  background: rgba(7, 11, 20, 0.74);
  border-bottom: 1px solid rgba(127, 140, 255, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(127, 140, 255, 0.28);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-text strong {
  font-size: 16px;
}

.brand-text span {
  font-size: 12px;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

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

.lang-toggle {
  border: 1px solid rgba(127, 140, 255, 0.2);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
}

.hero {
  padding: 108px 0 82px;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 40px 0 auto;
  height: 520px;
  background: radial-gradient(circle at 68% 30%, rgba(127, 140, 255, 0.18), transparent 28%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 72px;
  align-items: center;
}

.eyebrow,
.section-kicker,
.trust-label,
.topic-label,
.dashboard-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-2);
  text-transform: uppercase;
}

.hero h1 {
  margin: 16px 0 18px;
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.05em;
  max-width: 11em;
}

.hero-subtitle {
  margin: 0;
  max-width: 700px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.hero-actions,
.contact-actions,
.lead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-mini-contact {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

.hero-mini-label {
  color: var(--text);
  font-weight: 600;
}

.hero-divider {
  color: #4f5c79;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 14px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #08101f;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 18px 40px rgba(87, 161, 255, 0.2);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(127, 140, 255, 0.18);
}

.btn-ghost {
  color: var(--muted);
  background: transparent;
  border-color: var(--line);
}

.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-visual-topic {
  min-height: 520px;
}

.topic-panel {
  width: 100%;
  border-radius: 30px;
  border: 1px solid rgba(127, 140, 255, 0.16);
  background:
    linear-gradient(180deg, rgba(12, 18, 34, 0.95), rgba(8, 13, 24, 0.9)),
    radial-gradient(circle at top right, rgba(86, 210, 255, 0.14), transparent 26%);
  box-shadow: var(--shadow);
  padding: 24px;
}

.topic-panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.topic-panel-grid article {
  min-height: 160px;
  border-radius: 22px;
  padding: 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(127, 140, 255, 0.12);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.topic-panel-grid strong {
  font-size: 22px;
}

.topic-panel-grid small {
  color: var(--muted);
}

.dashboard-pill {
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(127, 140, 255, 0.2);
  color: #dbe3ff;
  font-size: 13px;
  font-weight: 600;
  margin-right: 8px;
}

.section {
  padding: 92px 0;
}

.section-alt {
  background: rgba(10, 16, 29, 0.58);
  border-top: 1px solid rgba(127, 140, 255, 0.08);
  border-bottom: 1px solid rgba(127, 140, 255, 0.08);
}

.section-alt-dark {
  background: linear-gradient(180deg, rgba(10, 16, 29, 0.9), rgba(6, 10, 18, 0.92));
  border-top: 1px solid rgba(127, 140, 255, 0.08);
  border-bottom: 1px solid rgba(127, 140, 255, 0.08);
}

.section-head {
  margin-bottom: 28px;
}

.section-head h2 {
  margin: 14px 0 0;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.15;
}

.section-summary {
  max-width: 760px;
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.85;
}

.compact-center {
  text-align: center;
}

.services-grid,
.trust-grid,
.topic-grid,
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.service-card,
.point-card,
.scenario-chip,
.faq-item,
.contact-card,
.trust-card,
.topic-card,
.category-card,
.data-visual,
.lead-form {
  border: 1px solid rgba(127, 140, 255, 0.14);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.service-card,
.trust-card,
.topic-card,
.category-card {
  padding: 28px;
  border-radius: 24px;
}

.service-card h3,
.topic-card strong,
.category-card strong,
.trust-card strong {
  display: block;
  margin: 0 0 12px;
  font-size: 22px;
}

.service-card p,
.trust-card p,
.topic-card p,
.category-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.visual-grid,
.intro-grid,
.contact-grid,
.lead-grid {
  display: grid;
  grid-template-columns: 0.96fr 1.04fr;
  gap: 44px;
  align-items: start;
}

.intro-body,
.contact-body {
  color: var(--muted);
  line-height: 1.85;
  font-size: 16px;
}

.intro-points {
  display: grid;
  gap: 16px;
}

.point-card {
  padding: 20px;
  border-radius: 20px;
  color: var(--text);
  font-weight: 600;
}

.category-card span {
  display: inline-block;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 600;
}

.lead-form {
  border-radius: 26px;
  padding: 24px;
}

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

.form-grid label {
  display: grid;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
}

.form-full {
  grid-column: 1 / -1;
}

.scenario-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.scenario-chip {
  padding: 14px 18px;
  border-radius: 999px;
  color: var(--text);
}

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

.faq-item {
  border-radius: 20px;
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 22px;
  font-weight: 700;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-answer {
  padding: 0 22px 22px;
  color: var(--muted);
  line-height: 1.8;
}

.contact-card {
  border-radius: 24px;
  padding: 24px;
}

.contact-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(127, 140, 255, 0.08);
}

.contact-row-priority code {
  color: var(--accent-2);
  font-weight: 700;
}

.contact-row:last-of-type {
  border-bottom: 0;
}

.contact-label {
  color: var(--muted);
}

.contact-row code {
  font-size: 15px;
}

.copy-status {
  min-height: 22px;
  margin: 16px 0 0;
  color: var(--accent-2);
  font-size: 14px;
}

.data-visual-stack {
  display: grid;
  gap: 20px;
}

.data-visual-row {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px;
}

.data-visual {
  border-radius: 28px;
  position: relative;
  overflow: hidden;
}

.data-visual-main {
  min-height: 340px;
  padding: 26px;
  background:
    linear-gradient(135deg, rgba(127,140,255,0.08), rgba(8,13,24,0.9)),
    repeating-linear-gradient(0deg, rgba(127,140,255,0.06) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(90deg, rgba(127,140,255,0.06) 0 1px, transparent 1px 42px),
    rgba(11, 17, 31, 0.98);
}

.node-grid {
  position: absolute;
  inset: 28px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px 22px;
}

.node-grid span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, #7f8cff, #56d2ff);
  box-shadow: 0 0 0 6px rgba(87,161,255,0.08);
}

.line-flow,
.line-flow-2 {
  position: absolute;
  inset: auto 32px 90px 32px;
  height: 2px;
  background: linear-gradient(90deg, transparent, #7f8cff, transparent);
  transform: rotate(-8deg);
}

.line-flow-2 {
  inset: auto 40px 150px 40px;
  transform: rotate(7deg);
}

.data-visual-chart,
.data-visual-ring {
  min-height: 180px;
  padding: 24px;
}

.mini-bars {
  height: 100%;
  display: flex;
  align-items: end;
  gap: 12px;
}

.mini-bars span {
  flex: 1;
  border-radius: 14px 14px 0 0;
  background: linear-gradient(180deg, #87b6ff 0%, #56d2ff 100%);
}

.mini-bars span:nth-child(1) { height: 54px; }
.mini-bars span:nth-child(2) { height: 98px; }
.mini-bars span:nth-child(3) { height: 72px; }
.mini-bars span:nth-child(4) { height: 124px; }
.mini-bars span:nth-child(5) { height: 86px; }

.data-visual-ring {
  display: grid;
  place-items: center;
}

.ring-core {
  width: 112px;
  height: 112px;
  border-radius: 999px;
  border: 12px solid rgba(127,140,255,0.16);
  border-top-color: #7f8cff;
  border-right-color: #56d2ff;
  box-shadow: inset 0 0 0 18px rgba(127,140,255,0.05);
}

.site-footer {
  padding: 42px 0 60px;
}

.footer-inner {
  border-top: 1px solid rgba(127, 140, 255, 0.08);
  padding-top: 22px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-brand img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}

.footer-brand p {
  margin: 6px 0 0;
  color: var(--muted);
}

@media (max-width: 1080px) {
  .trust-grid,
  .topic-grid,
  .category-grid,
  .visual-grid,
  .data-visual-row,
  .hero-grid,
  .intro-grid,
  .contact-grid,
  .services-grid,
  .lead-grid,
  .form-grid,
  .topic-panel-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 56px;
  }

  .hero h1 {
    max-width: 100%;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, 1320px);
  }

  .header-inner {
    min-height: 72px;
    gap: 16px;
  }

  .nav {
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

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

  .hero h1 {
    font-size: 34px;
  }

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

  .section-head h2 {
    font-size: 28px;
  }

  .contact-actions,
  .hero-actions,
  .lead-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}