:root {
  --blue: #0052ff;
  --blue-active: #003ecc;
  --ink: #0a0b0d;
  --body: #505866;
  --muted: #7c828a;
  --line: #dee1e6;
  --line-soft: #eef0f3;
  --canvas: #ffffff;
  --soft: #f7f7f7;
  --dark: #0a0b0d;
  --dark-card: #16181c;
  --green: #05b169;
  --red: #cf202f;
  --amber: #f4b000;
  --violet: #6d5dfc;
  --radius-card: 24px;
  --radius-sm: 12px;
  --radius-pill: 100px;
  --shadow: 0 24px 80px rgba(3, 12, 33, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.5;
}

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

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

button,
input,
select {
  font: inherit;
}

.container {
  width: min(1200px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  height: 72px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 0 32px;
  color: white;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line-soft);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  font-weight: 700;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: white;
  background: var(--blue);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 15px;
}

.main-nav {
  display: flex;
  gap: 28px;
  font-size: 14px;
  font-weight: 600;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  background: var(--blue);
  color: white;
  font-weight: 700;
  font-size: 14px;
}

.header-actions {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.language-link {
  display: inline-grid;
  place-items: center;
  min-width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-pill);
  color: currentColor;
  font-size: 13px;
  font-weight: 800;
}

.site-header.is-scrolled .language-link {
  border-color: var(--line);
}

.nav-cta svg,
.button svg,
.capability-list svg,
.role-grid svg,
i[data-lucide] {
  width: 18px;
  height: 18px;
}

i[data-lucide] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 18px;
}

i[data-lucide] svg {
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.hero {
  position: relative;
  min-height: 84vh;
  overflow: hidden;
  display: grid;
  align-items: end;
  color: white;
  background: var(--dark);
  padding: 128px 0 72px;
}

.hero-bg,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg {
  object-fit: cover;
  object-position: 56% center;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(10, 11, 13, 0.96) 0%, rgba(10, 11, 13, 0.8) 34%, rgba(10, 11, 13, 0.25) 74%),
    linear-gradient(180deg, rgba(10, 11, 13, 0.35) 0%, rgba(10, 11, 13, 0.18) 56%, rgba(10, 11, 13, 0.92) 100%);
}

.hero-inner {
  position: relative;
  width: min(1200px, calc(100% - 48px));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.hero .eyebrow,
.access-section .eyebrow {
  color: #8fb4ff;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 24px;
  font-size: clamp(44px, 7vw, 84px);
  line-height: 1;
  font-weight: 500;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(34px, 4.4vw, 56px);
  line-height: 1.05;
  font-weight: 500;
}

h3 {
  margin-bottom: 10px;
  font-size: 18px;
  line-height: 1.25;
}

.hero-copy {
  max-width: 620px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 56px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 22px;
  border: 0;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-weight: 700;
  white-space: nowrap;
}

.button-primary {
  background: var(--blue);
  color: white;
}

.button-primary:hover {
  background: var(--blue-active);
}

.button-dark {
  background: rgba(255, 255, 255, 0.12);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 160px));
  gap: 16px;
  margin: 0;
}

.hero-metrics div {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.hero-metrics dt {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 24px;
  font-weight: 600;
}

.hero-metrics dd {
  margin: 3px 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}

.intro-band {
  padding: 34px 0;
  background: var(--dark);
  color: white;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.intro-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 18px;
}

.intro-grid p:last-child {
  color: white;
  font-weight: 600;
}

.section {
  padding: 96px 0;
}

.section-head {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 40px;
}

.section-head.compact {
  display: block;
  max-width: 780px;
}

.title-center {
  display: block;
  max-width: 880px;
  text-align: center;
}

.title-center h2 {
  margin-inline: auto;
}

.title-sm h2 {
  font-size: clamp(30px, 3.4vw, 44px);
}

.title-sm h2.nowrap-title {
  white-space: nowrap;
  font-size: clamp(20px, 3vw, 40px);
}

.product-section,
.scenario-section,
.report-section {
  background: var(--soft);
}

.cockpit {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 28px;
  align-items: stretch;
}

.dashboard-shell {
  padding: 24px;
  border-radius: var(--radius-card);
  background: var(--dark);
  color: white;
  box-shadow: var(--shadow);
}

.dashboard-topbar,
.report-card-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
  font-weight: 700;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.kpi-grid article {
  padding: 16px;
  border-radius: 16px;
  background: var(--dark-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.kpi-grid span,
.ledger-table span {
  color: rgba(255, 255, 255, 0.58);
  font-size: 12px;
}

.kpi-grid strong {
  display: block;
  margin: 8px 0 2px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 24px;
}

.kpi-grid em,
.ledger-table em {
  color: rgba(255, 255, 255, 0.62);
  font-style: normal;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
}

.positive {
  color: var(--green) !important;
}

.negative {
  color: var(--red) !important;
}

.warning {
  color: var(--amber) !important;
}

.chart-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 18px;
}

.flow-chart {
  min-height: 260px;
  display: flex;
  align-items: end;
  gap: 12px;
  padding: 24px;
  border-radius: 18px;
  background:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px),
    #10131a;
  background-size: 100% 25%, 12.5% 100%, auto;
}

.flow-chart span {
  flex: 1;
  min-width: 10px;
  border-radius: 10px 10px 4px 4px;
  background: linear-gradient(180deg, #8fb4ff, var(--blue));
}

.ledger-table {
  display: grid;
  gap: 10px;
}

.ledger-table div {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-radius: 14px;
  background: var(--dark-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ledger-table b {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 14px;
}

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

.capability-list article,
.role-grid article,
.answer-grid article {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: white;
}

.capability-list article {
  min-height: 150px;
}

.capability-list svg,
.role-grid svg {
  margin-bottom: 18px;
  color: var(--blue);
}

.capability-list p,
.answer-grid p,
.role-grid p,
.split-head p,
.report-layout > div > p,
.access-layout > div > p,
.site-footer p {
  color: var(--body);
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.answer-grid span {
  display: inline-flex;
  margin-bottom: 36px;
  color: var(--blue);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-weight: 600;
}

.split-head {
  display: grid;
  grid-template-columns: 1fr 0.55fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 40px;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.scenario-grid article {
  overflow: hidden;
  border-radius: var(--radius-card);
  background: white;
  border: 1px solid var(--line-soft);
}

.scenario-grid img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.scenario-grid div {
  padding: 24px;
}

.scenario-grid p {
  color: var(--body);
}

.scenario-grid strong {
  display: block;
  color: var(--blue);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
}

.roles-section {
  background: white;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.role-grid ul {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.role-grid li {
  padding-left: 20px;
  position: relative;
  color: var(--ink);
  font-weight: 600;
}

.role-grid li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.67em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
}

.report-layout,
.access-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 48px;
  align-items: center;
}

.report-card {
  padding: 28px;
  border-radius: var(--radius-card);
  background: var(--dark);
  color: white;
  box-shadow: var(--shadow);
}

.report-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0;
}

.report-stats div {
  padding: 20px;
  border-radius: 18px;
  background: var(--dark-card);
}

.report-stats strong {
  display: block;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 28px;
}

.report-stats span,
.report-columns p {
  color: rgba(255, 255, 255, 0.66);
  font-size: 14px;
}

.report-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.report-columns div {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
}

.access-section {
  padding: 96px 0;
  background: var(--dark);
  color: white;
}

.access-layout > div > p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 18px;
}

.access-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border-radius: var(--radius-card);
  background: var(--dark-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.access-form label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 700;
}

.access-form input,
.access-form select {
  width: 100%;
  min-height: 50px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  background: #0f1117;
  color: white;
  padding: 0 14px;
}

.access-form input:focus,
.access-form select:focus {
  outline: 2px solid var(--blue);
  border-color: transparent;
}

.access-form .button {
  margin-top: 4px;
}

.form-status {
  min-height: 21px;
  margin: 0;
  color: #8fb4ff;
  font-size: 14px;
}

.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--line-soft);
  background: white;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.footer-inner p {
  margin: 14px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--body);
  font-size: 14px;
  font-weight: 600;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .main-nav {
    display: none;
  }

  .cockpit,
  .section-head,
  .split-head,
  .report-layout,
  .access-layout,
  .intro-grid {
    grid-template-columns: 1fr;
  }

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

  .kpi-grid,
  .chart-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .container,
  .hero-inner {
    width: min(100% - 32px, 1200px);
  }

  .site-header {
    height: 64px;
    padding: 0 16px;
  }

  .nav-cta span {
    display: none;
  }

  .language-link {
    min-width: 40px;
    height: 40px;
  }

  .hero {
    min-height: 82vh;
    padding: 104px 0 48px;
  }

  .hero-bg {
    object-position: 68% center;
  }

  .hero-copy {
    font-size: 18px;
  }

  .hero-metrics,
  .answer-grid,
  .scenario-grid,
  .role-grid,
  .report-stats,
  .report-columns,
  .kpi-grid,
  .chart-row {
    grid-template-columns: 1fr;
  }

  .section,
  .access-section {
    padding: 72px 0;
  }

  .dashboard-shell,
  .report-card,
  .access-form,
  .capability-list article,
  .role-grid article,
  .answer-grid article {
    padding: 20px;
    border-radius: 18px;
  }

  .ledger-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .footer-inner {
    display: grid;
  }
}