:root {
  --bg: #050608;
  --ink: #f7f8fb;
  --paper: #ffffff;
  --soft: #f5f5f7;
  --muted: #9aa3ad;
  --muted-dark: #59616b;
  --line: rgba(255, 255, 255, 0.12);
  --line-dark: rgba(6, 8, 12, 0.1);
  --blue: #0066ff;
  --cyan: #00d4ff;
  --amber: #f5c044;
  --green: #4ade80;
  --radius: 8px;
  --shadow: 0 40px 120px rgba(0, 0, 0, 0.42);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  letter-spacing: 0;
}

body::before {
  position: fixed;
  content: "";
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(circle at 50% 4%, rgba(255, 255, 255, 0.18), transparent 30%),
    radial-gradient(circle at 78% 18%, rgba(0, 102, 255, 0.22), transparent 28%),
    radial-gradient(circle at 24% 26%, rgba(245, 192, 68, 0.1), transparent 20%),
    #050608;
}

.stage-noise {
  position: fixed;
  inset: 0;
  z-index: -2;
  opacity: 0.28;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 78%);
}

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

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

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

.site-header {
  position: fixed;
  z-index: 40;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid transparent;
  background: rgba(5, 6, 8, 0.52);
  backdrop-filter: blur(22px);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.site-header.is-elevated {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(5, 6, 8, 0.78);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  position: relative;
  width: 31px;
  height: 31px;
  border: 8px solid #fff;
  border-right-color: transparent;
  border-radius: 50%;
  box-shadow: 0 0 34px rgba(0, 102, 255, 0.75);
}

.brand-mark::after {
  position: absolute;
  content: "";
  width: 8px;
  height: 8px;
  top: 4px;
  left: 4px;
  background: var(--blue);
  border-radius: 50%;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1;
}

.brand strong {
  font-size: 17px;
  font-weight: 800;
}

.brand small {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.52);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.nav-links a {
  padding: 10px 0;
}

.nav-links a:hover {
  color: #fff;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: #fff;
}

.hero {
  position: relative;
  min-height: 100svh;
  padding: 132px clamp(20px, 5vw, 72px) 80px;
  text-align: center;
  overflow: hidden;
}

.hero::after {
  position: absolute;
  content: "";
  left: 50%;
  top: 84px;
  width: min(980px, 92vw);
  height: 520px;
  transform: translateX(-50%);
  z-index: -1;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.24), transparent 64%);
  filter: blur(8px);
}

.hero-kicker,
.section-label {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  color: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 13px;
  font-weight: 700;
}

.hero-title {
  max-width: 1040px;
  margin: 22px auto 24px;
  font-size: clamp(54px, 9vw, 132px);
  line-height: 0.96;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 820px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.68);
  font-size: clamp(17px, 2vw, 23px);
  line-height: 1.72;
}

.hero-actions,
.contact-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 800;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.34);
}

.button svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button.primary {
  color: #050608;
  background: #fff;
  border-color: #fff;
}

.button.ghost {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.button.invert {
  color: #fff;
  background: #050608;
  border-color: #050608;
}

.hero-product {
  max-width: 1120px;
  margin: 64px auto 0;
}

.product-shell {
  position: relative;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  grid-template-rows: 44px minmax(0, 1fr);
  min-height: 560px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.055)),
    rgba(255, 255, 255, 0.045);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.product-topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 7px;
  padding-left: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.product-topbar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
}

.product-sidebar {
  display: grid;
  align-content: start;
  gap: 13px;
  padding: 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.product-sidebar span {
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
}

.product-sidebar .active {
  background: linear-gradient(135deg, #fff, rgba(0, 212, 255, 0.8));
}

.product-main {
  padding: 24px;
}

.signal-map {
  position: relative;
  min-height: 360px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 52%, rgba(0, 102, 255, 0.25), transparent 28%),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
}

#flowCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.ip-core,
.glass-node {
  position: absolute;
  display: grid;
  place-items: center;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
}

.ip-core {
  left: 50%;
  top: 50%;
  width: 210px;
  height: 132px;
  transform: translate(-50%, -50%);
  box-shadow: 0 30px 90px rgba(0, 102, 255, 0.25);
}

.ip-core span,
.glass-node {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 800;
}

.ip-core strong {
  color: #fff;
  font-size: 28px;
}

.glass-node {
  width: 116px;
  height: 56px;
}

.node-one {
  left: 12%;
  top: 18%;
}

.node-two {
  right: 13%;
  top: 20%;
}

.node-three {
  right: 20%;
  bottom: 18%;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.1);
}

.metric-row div {
  padding: 22px;
  text-align: left;
  background: rgba(255, 255, 255, 0.055);
}

.metric-row span {
  display: block;
  color: rgba(255, 255, 255, 0.52);
  font-size: 13px;
}

.metric-row strong {
  display: block;
  margin-top: 8px;
  color: #fff;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1;
}

.section {
  padding: clamp(86px, 11vw, 150px) clamp(20px, 5vw, 72px);
}

#company,
#method,
#cases,
#contact {
  scroll-margin-top: 72px;
}

.manifesto,
.numbers,
.method,
.persona,
.operating {
  background: var(--soft);
  color: #07090d;
}

.manifesto {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.manifesto .section-label,
.method .section-label,
.persona .section-label,
.operating .section-label {
  color: #0b1117;
  border-color: rgba(6, 8, 12, 0.11);
  background: #fff;
}

.manifesto-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(36px, 7vw, 96px);
  margin-top: 26px;
}

.manifesto h2,
.section-intro h2,
.persona h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(38px, 6.4vw, 88px);
  line-height: 1.02;
  font-weight: 900;
  letter-spacing: 0;
}

.manifesto-text p,
.persona-copy p,
.contact p {
  color: var(--muted-dark);
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.9;
}

.proof-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: clamp(42px, 7vw, 90px);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line-dark);
}

.proof-wall article,
.number-item,
.method-panel,
.ops-grid article,
.case-feature article,
.case-stats article {
  background: #fff;
}

.proof-wall article {
  min-height: 230px;
  padding: 28px;
}

.proof-wall span,
.panel-index {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.proof-wall strong {
  display: block;
  margin-top: 46px;
  font-size: 24px;
}

.proof-wall p,
.method-panel p,
.ops-grid p,
.case-feature p,
.case-stats p {
  color: var(--muted-dark);
  line-height: 1.75;
}

.numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  padding-top: 0;
  background: var(--line-dark);
}

.number-item {
  min-height: 260px;
  padding: 34px;
}

.number-item strong {
  display: block;
  font-size: clamp(48px, 6vw, 84px);
  line-height: 1;
}

.number-item span {
  display: block;
  max-width: 210px;
  margin-top: 18px;
  color: var(--muted-dark);
  line-height: 1.65;
}

.section-intro {
  max-width: 980px;
}

.section-intro .section-label {
  margin-bottom: 24px;
}

.method-board {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  gap: 1px;
  margin-top: 46px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line-dark);
}

.method-panel {
  min-height: 300px;
  padding: 32px;
}

.method-panel.dark {
  grid-row: span 2;
  color: #fff;
  background:
    radial-gradient(circle at 68% 24%, rgba(0, 102, 255, 0.32), transparent 32%),
    #050608;
}

.method-panel.accent {
  background: #eef5ff;
}

.method-panel.dark p {
  color: rgba(255, 255, 255, 0.68);
}

.method-panel h3 {
  margin: 52px 0 14px;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.05;
}

.persona {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: center;
  background: #fff;
}

.persona-visual {
  min-height: 520px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 48%, rgba(0, 102, 255, 0.18), transparent 32%),
    linear-gradient(rgba(6, 8, 12, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6, 8, 12, 0.05) 1px, transparent 1px),
    #f7f8fb;
  background-size: auto, 36px 36px, 36px 36px;
}

.persona-card {
  display: grid;
  gap: 10px;
  width: min(360px, 78%);
  padding: 18px;
  border: 1px solid rgba(6, 8, 12, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 30px 90px rgba(7, 16, 28, 0.12);
  backdrop-filter: blur(16px);
}

.persona-card span {
  color: var(--muted-dark);
  font-size: 13px;
  font-weight: 800;
}

.persona-card strong {
  display: block;
  padding: 18px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  font-size: 22px;
  background: #fff;
}

.cases {
  color: #fff;
  background: #050608;
}

.cases .section-label {
  color: rgba(255, 255, 255, 0.72);
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

.case-feature {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 46px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
}

.case-feature article,
.case-stats article {
  color: #fff;
  background: rgba(255, 255, 255, 0.055);
}

.case-feature article {
  min-height: 330px;
  padding: 32px;
}

.case-feature span,
.case-stats span {
  color: rgba(255, 255, 255, 0.58);
}

.case-feature h3 {
  margin: 52px 0 16px;
  font-size: clamp(30px, 4vw, 54px);
}

.case-feature p,
.case-stats p {
  color: rgba(255, 255, 255, 0.62);
}

.case-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
}

.case-stats article {
  min-height: 190px;
  padding: 24px;
}

.case-stats strong {
  display: block;
  margin: 34px 0 10px;
  font-size: clamp(26px, 3.4vw, 44px);
  line-height: 1;
}

.case-gallery {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr 1fr;
  gap: 12px;
  margin-top: 18px;
}

.case-gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
}

.case-gallery img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(0.9) contrast(0.98);
}

.operating {
  background: var(--soft);
}

.ops-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 46px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line-dark);
}

.ops-grid article {
  min-height: 220px;
  padding: 28px;
}

.ops-grid h3 {
  margin-bottom: 58px;
  font-size: 24px;
}

.contact {
  position: relative;
  padding: clamp(90px, 12vw, 170px) clamp(20px, 5vw, 72px);
  text-align: center;
  overflow: hidden;
}

.contact::before {
  position: absolute;
  content: "";
  left: 50%;
  top: 50%;
  width: min(860px, 94vw);
  height: 420px;
  transform: translate(-50%, -50%);
  z-index: -1;
  background: radial-gradient(ellipse at center, rgba(0, 102, 255, 0.28), transparent 64%);
}

.contact-inner {
  max-width: 980px;
  margin: 0 auto;
}

.contact h2 {
  margin-top: 24px;
}

.contact p {
  max-width: 760px;
  margin: 24px auto 0;
  color: rgba(255, 255, 255, 0.64);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.45);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1060px) {
  .manifesto-grid,
  .persona {
    grid-template-columns: 1fr;
  }

  .numbers,
  .case-stats,
  .ops-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .method-board {
    grid-template-columns: 1fr;
  }

  .method-panel.dark {
    grid-row: auto;
  }

  .case-gallery {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    height: 64px;
  }

  html {
    scroll-padding-top: 64px;
  }

  #company,
  #method,
  #cases,
  #contact {
    scroll-margin-top: 64px;
  }

  .brand small {
    display: none;
  }

  .nav-links {
    position: fixed;
    top: 64px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    background: rgba(5, 6, 8, 0.94);
    box-shadow: var(--shadow);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 14px;
  }

  .menu-button {
    display: block;
  }

  .hero {
    padding-top: 112px;
  }

  .hero-title {
    font-size: 52px;
  }

  .product-shell {
    grid-template-columns: 1fr;
    min-height: 620px;
  }

  .product-sidebar {
    display: none;
  }

  .product-main {
    padding: 14px;
  }

  .signal-map {
    min-height: 390px;
  }

  .ip-core {
    width: 170px;
    height: 112px;
  }

  .ip-core strong {
    font-size: 22px;
  }

  .glass-node {
    width: 96px;
    height: 48px;
    font-size: 12px;
  }

  .node-one {
    left: 6%;
  }

  .node-two {
    right: 6%;
  }

  .node-three {
    right: 12%;
    bottom: 14%;
  }

  .proof-wall,
  .numbers,
  .case-feature,
  .case-stats,
  .ops-grid {
    grid-template-columns: 1fr;
  }

  .metric-row div {
    padding: 14px 10px;
  }

  .metric-row span {
    font-size: 11px;
  }

  .metric-row strong {
    font-size: 24px;
  }

  .proof-wall article,
  .number-item,
  .method-panel,
  .case-feature article,
  .case-stats article,
  .ops-grid article {
    min-height: auto;
  }

  .manifesto h2,
  .section-intro h2,
  .persona h2,
  .contact h2 {
    font-size: 42px;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}