:root {
  --deep-space: #071411;
  --carbon-green: #0e3d35;
  --primary-mint: #7ee6c6;
  --soft-mint: #b9e3d3;
  --warm-ivory: #f6f4ec;
  --accent-gold: #d8b56d;
  --text-main: #f4f7f2;
  --text-dark: #17211e;
  --text-muted: #6f7b75;
  --line-dark: rgba(244, 247, 242, 0.14);
  --line-light: rgba(23, 33, 30, 0.12);
  --shadow-soft: 0 24px 80px rgba(0, 0, 0, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text-dark);
  background: var(--warm-ivory);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

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

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

.page-shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.section-dark {
  position: relative;
  overflow: hidden;
  color: var(--text-main);
  background:
    radial-gradient(circle at 20% 10%, rgba(126, 230, 198, 0.16), transparent 32%),
    radial-gradient(circle at 78% 22%, rgba(216, 181, 109, 0.1), transparent 28%),
    linear-gradient(135deg, #071411 0%, #0b211d 45%, #06110f 100%);
}

.section-light {
  position: relative;
  overflow: hidden;
  background: var(--warm-ivory);
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 18px;
  left: 50%;
  display: flex;
  width: min(1160px, calc(100% - 40px));
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 10px 18px;
  color: var(--text-main);
  background: rgba(7, 20, 17, 0.58);
  border: 1px solid rgba(244, 247, 242, 0.12);
  border-radius: 999px;
  backdrop-filter: blur(22px);
  transform: translateX(-50%);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border: 1px solid rgba(126, 230, 198, 0.8);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(126, 230, 198, 0.95) 0 18%, transparent 19%),
    conic-gradient(from 30deg, rgba(126, 230, 198, 0.15), rgba(216, 181, 109, 0.9), rgba(126, 230, 198, 0.15));
  box-shadow: 0 0 22px rgba(126, 230, 198, 0.42);
}

.nav-links {
  display: flex;
  gap: 22px;
  color: rgba(244, 247, 242, 0.78);
  font-size: 14px;
}

.nav-links a {
  transition: color 180ms ease;
}

.nav-links a:hover {
  color: var(--primary-mint);
}

.header-cta {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 0 16px;
  color: #081512;
  background: var(--primary-mint);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.hero {
  min-height: 0;
  padding: 104px 0 34px;
}

.ambient {
  position: absolute;
  border-radius: 999px;
  filter: blur(24px);
  opacity: 0.6;
  pointer-events: none;
}

.ambient-one {
  right: 9vw;
  top: 16vh;
  width: 240px;
  height: 240px;
  background: rgba(126, 230, 198, 0.18);
}

.ambient-two {
  left: 8vw;
  bottom: 10vh;
  width: 180px;
  height: 180px;
  background: rgba(216, 181, 109, 0.12);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.9fr);
  gap: 58px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin-bottom: 16px;
  color: var(--primary-mint);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(74px, 11vw, 150px);
  line-height: 0.86;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 680px;
  margin-top: 30px;
  font-size: clamp(26px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: 0;
}

.hero-text {
  max-width: 660px;
  margin-top: 24px;
  color: rgba(244, 247, 242, 0.72);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #071411;
  background: var(--primary-mint);
  box-shadow: 0 16px 40px rgba(126, 230, 198, 0.2);
}

.button-primary.dark {
  background: var(--text-dark);
  color: var(--text-main);
}

.button-secondary {
  color: var(--text-main);
  border: 1px solid rgba(244, 247, 242, 0.2);
  background: rgba(244, 247, 242, 0.06);
}

.hero-console {
  position: relative;
  min-height: 0;
  padding: 14px;
  border: 1px solid rgba(244, 247, 242, 0.14);
  border-radius: 32px;
  background:
    linear-gradient(160deg, rgba(244, 247, 242, 0.14), rgba(244, 247, 242, 0.04)),
    rgba(8, 22, 19, 0.62);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(20px);
}

.console-topbar {
  display: flex;
  gap: 7px;
  margin: 2px 0 12px;
}

.console-topbar span {
  width: 8px;
  height: 8px;
  background: rgba(244, 247, 242, 0.28);
  border-radius: 50%;
}

.role-card,
.signal-panel,
.chat-preview,
.media-card,
.case-card,
.roadmap-panel {
  border: 1px solid rgba(244, 247, 242, 0.12);
  background: rgba(244, 247, 242, 0.08);
  backdrop-filter: blur(18px);
}

.role-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px;
  border-radius: 24px;
}

.role-portrait {
  position: relative;
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 38%, rgba(246, 244, 236, 0.95) 0 8%, transparent 9%),
    linear-gradient(145deg, rgba(126, 230, 198, 0.82), rgba(14, 61, 53, 0.9) 54%, rgba(216, 181, 109, 0.72));
}

.portrait-aura {
  position: absolute;
  width: 50px;
  height: 50px;
  border: 1px solid rgba(246, 244, 236, 0.45);
  border-radius: 50%;
}

.portrait-face {
  position: relative;
  width: 22px;
  height: 32px;
  border-radius: 999px 999px 18px 18px;
  background: rgba(246, 244, 236, 0.86);
  box-shadow: 0 26px 0 18px rgba(7, 20, 17, 0.36);
}

.role-label {
  color: var(--accent-gold);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.role-card h2 {
  margin-top: 2px;
  font-size: 26px;
}

.role-card p:last-child {
  color: rgba(244, 247, 242, 0.65);
  font-size: 14px;
}

.signal-panel {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 14px;
  align-items: center;
  margin-top: 12px;
  padding: 14px;
  border-radius: 24px;
}

.wave-lines,
.voice-meter {
  display: flex;
  height: 54px;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

.wave-lines span,
.voice-meter i {
  width: 7px;
  height: var(--h);
  min-height: 15px;
  border-radius: 99px;
  background: linear-gradient(180deg, var(--primary-mint), rgba(216, 181, 109, 0.85));
  animation: wave 2.4s ease-in-out infinite;
}

.wave-lines span:nth-child(2n),
.voice-meter i:nth-child(2n) {
  animation-delay: 360ms;
}

.signal-copy {
  display: grid;
  gap: 5px;
}

.signal-copy span {
  color: rgba(244, 247, 242, 0.62);
  font-size: 14px;
}

.memory-map {
  position: relative;
  height: 120px;
  margin: 12px 0;
  border: 1px solid rgba(244, 247, 242, 0.1);
  border-radius: 24px;
  background:
    linear-gradient(rgba(244, 247, 242, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 247, 242, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
}

.memory-node {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(126, 230, 198, 0.95);
  border-radius: 50%;
  background: #081512;
  box-shadow: 0 0 24px rgba(126, 230, 198, 0.55);
}

.node-large {
  left: 44%;
  top: 42%;
  width: 26px;
  height: 26px;
}

.memory-node:nth-child(2) {
  left: 16%;
  top: 26%;
}

.memory-node:nth-child(3) {
  right: 20%;
  top: 22%;
}

.memory-node:nth-child(4) {
  left: 24%;
  bottom: 20%;
}

.memory-path {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(126, 230, 198, 0.7), transparent);
  transform-origin: left center;
}

.path-one {
  left: 18%;
  top: 34%;
  width: 170px;
  transform: rotate(15deg);
}

.path-two {
  left: 49%;
  top: 48%;
  width: 150px;
  transform: rotate(-25deg);
}

.path-three {
  left: 27%;
  bottom: 31%;
  width: 150px;
  transform: rotate(-18deg);
}

.chat-preview {
  display: grid;
  gap: 8px;
  padding: 12px;
  border-radius: 24px;
}

.chat-line {
  max-width: 84%;
  padding: 9px 12px;
  border-radius: 16px;
  font-size: 14px;
}

.chat-line.user {
  justify-self: end;
  color: #071411;
  background: var(--primary-mint);
}

.chat-line.ai {
  color: rgba(244, 247, 242, 0.88);
  background: rgba(244, 247, 242, 0.1);
}

.vision,
.multimodal,
.scenarios,
.case-study,
.roadmap {
  padding: 112px 0;
}

.vision {
  padding-top: 28px;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 72px;
}

.align-center {
  align-items: center;
}

h2 {
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  font-size: 21px;
  line-height: 1.25;
}

.section-copy {
  color: var(--text-muted);
  font-size: 17px;
}

.section-dark .section-copy,
.section-dark .section-heading p {
  color: rgba(244, 247, 242, 0.68);
}

.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 54px;
}

.feature-card,
.capability-card,
.scenario-grid article,
.principle-list article {
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.feature-card {
  min-height: 245px;
  padding: 28px;
  border: 1px solid var(--line-light);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.42);
}

.feature-card:hover,
.scenario-grid article:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 111, 91, 0.32);
  box-shadow: 0 18px 50px rgba(14, 61, 53, 0.1);
}

.mini-icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  color: var(--carbon-green);
  border: 1px solid rgba(31, 111, 91, 0.22);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 900;
}

.feature-card p,
.capability-card p,
.scenario-grid p,
.principle-list p {
  margin-top: 12px;
  color: var(--text-muted);
}

.section-heading {
  max-width: 780px;
  text-align: center;
}

.section-heading p:last-child {
  margin-top: 18px;
}

#experience,
.technology,
.principles {
  padding: 112px 0;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 50px;
}

.capability-card {
  min-height: 230px;
  padding: 26px;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  background: rgba(244, 247, 242, 0.06);
}

.capability-card:hover,
.principle-list article:hover {
  transform: translateY(-4px);
  border-color: rgba(126, 230, 198, 0.38);
  background: rgba(244, 247, 242, 0.09);
}

.capability-icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: #071411;
  background: var(--primary-mint);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 900;
}

.media-stack {
  position: relative;
  min-height: 520px;
}

.media-card {
  position: absolute;
  display: grid;
  gap: 14px;
  padding: 16px;
  color: var(--text-main);
  border-color: rgba(14, 61, 53, 0.18);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(14, 61, 53, 0.92), rgba(7, 20, 17, 0.96));
  box-shadow: var(--shadow-soft);
}

.media-card span {
  color: rgba(244, 247, 242, 0.62);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.image-card {
  top: 16px;
  left: 18px;
  width: 62%;
}

.video-card {
  right: 12px;
  top: 176px;
  width: 54%;
  min-height: 180px;
}

.voice-card {
  left: 74px;
  bottom: 24px;
  width: 56%;
}

.image-scene {
  height: 260px;
  border-radius: 6px;
  background:
    radial-gradient(circle at 50% 38%, rgba(246, 244, 236, 0.92) 0 6%, transparent 7%),
    radial-gradient(circle at 50% 78%, rgba(246, 244, 236, 0.42) 0 16%, transparent 17%),
    linear-gradient(160deg, rgba(126, 230, 198, 0.75), rgba(14, 61, 53, 0.95) 52%, rgba(216, 181, 109, 0.72));
}

.play-dot {
  width: 62px;
  height: 62px;
  margin: auto;
  border: 1px solid rgba(126, 230, 198, 0.7);
  border-radius: 50%;
  background:
    linear-gradient(90deg, rgba(126, 230, 198, 0.95) 0 50%, transparent 51%) center / 18px 22px no-repeat,
    rgba(126, 230, 198, 0.12);
  box-shadow: 0 0 38px rgba(126, 230, 198, 0.26);
}

.voice-meter i {
  --h: 54%;
  display: block;
}

.voice-meter i:nth-child(2) {
  --h: 86%;
}

.voice-meter i:nth-child(3) {
  --h: 40%;
}

.voice-meter i:nth-child(4) {
  --h: 74%;
}

.voice-meter i:nth-child(5) {
  --h: 58%;
}

.flow-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}

.flow-line span {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 0 14px;
  color: var(--carbon-green);
  border: 1px solid rgba(31, 111, 91, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.48);
  font-size: 14px;
  font-weight: 800;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.scenario-grid article {
  min-height: 174px;
  padding: 24px;
  border: 1px solid var(--line-light);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.45);
}

.architecture {
  display: grid;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  background: rgba(244, 247, 242, 0.06);
}

.arch-node {
  position: relative;
  padding: 16px 18px;
  border: 1px solid rgba(244, 247, 242, 0.12);
  border-radius: 8px;
  background: rgba(244, 247, 242, 0.06);
  color: rgba(244, 247, 242, 0.86);
}

.arch-node:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 28px;
  bottom: -13px;
  width: 1px;
  height: 13px;
  background: rgba(126, 230, 198, 0.46);
}

.arch-node.primary,
.arch-node.result {
  border-color: rgba(126, 230, 198, 0.32);
  background: rgba(126, 230, 198, 0.12);
}

.arch-modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.arch-modules span {
  padding: 12px;
  text-align: center;
  color: rgba(244, 247, 242, 0.76);
  border: 1px solid rgba(244, 247, 242, 0.1);
  border-radius: 8px;
  background: rgba(244, 247, 242, 0.04);
  font-size: 13px;
}

.case-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  align-items: center;
}

.case-visual {
  position: relative;
  min-height: 420px;
  border: 1px solid rgba(31, 111, 91, 0.14);
  border-radius: 8px;
  background:
    linear-gradient(rgba(14, 61, 53, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 61, 53, 0.05) 1px, transparent 1px),
    radial-gradient(circle at 50% 45%, rgba(126, 230, 198, 0.2), transparent 34%);
  background-size: 32px 32px, 32px 32px, auto;
}

.case-orbit {
  position: absolute;
  inset: 54px;
  border: 1px solid rgba(31, 111, 91, 0.18);
  border-radius: 50%;
}

.case-orbit::before,
.case-orbit::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-mint);
  box-shadow: 0 0 30px rgba(126, 230, 198, 0.7);
}

.case-orbit::before {
  left: 12%;
  top: 12%;
}

.case-orbit::after {
  right: 8%;
  bottom: 18%;
}

.case-card {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(300px, calc(100% - 64px));
  padding: 28px;
  color: var(--text-main);
  border-color: rgba(126, 230, 198, 0.22);
  border-radius: 8px;
  background: linear-gradient(150deg, rgba(14, 61, 53, 0.96), rgba(7, 20, 17, 0.94));
  transform: translate(-50%, -50%);
  box-shadow: var(--shadow-soft);
}

.case-card p {
  color: var(--accent-gold);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.case-card h2 {
  margin-top: 10px;
}

.case-card span {
  color: rgba(244, 247, 242, 0.66);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.tag-list span {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 0 13px;
  color: var(--carbon-green);
  border: 1px solid rgba(31, 111, 91, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.52);
  font-size: 14px;
  font-weight: 800;
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 46px;
}

.principle-list article {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  background: rgba(244, 247, 242, 0.06);
}

.roadmap-panel {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 34px;
  align-items: center;
  padding: 36px;
  color: var(--text-dark);
  border-color: rgba(31, 111, 91, 0.16);
  border-radius: 8px;
  background:
    radial-gradient(circle at 10% 20%, rgba(126, 230, 198, 0.2), transparent 24%),
    rgba(255, 255, 255, 0.54);
}

.roadmap-panel ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text-muted);
}

.site-footer {
  padding: 42px 0;
  color: rgba(244, 247, 242, 0.68);
  background: var(--deep-space);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-inner strong {
  display: block;
  color: var(--text-main);
  font-size: 22px;
}

.footer-inner p {
  margin-top: 8px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes wave {
  0%,
  100% {
    transform: scaleY(0.72);
  }
  50% {
    transform: scaleY(1.16);
  }
}

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

  .hero-grid,
  .two-column,
  .case-grid,
  .roadmap-panel {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: 0;
  }

  .hero-console {
    min-height: 540px;
  }

  .feature-row,
  .capability-grid,
  .scenario-grid,
  .principle-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .roadmap-panel {
    align-items: start;
  }
}

@media (max-width: 680px) {
  .page-shell {
    width: min(100% - 28px, 1160px);
  }

  .site-header {
    top: 10px;
    width: calc(100% - 20px);
    min-height: 52px;
    padding: 8px 8px 8px 14px;
  }

  .header-cta {
    min-height: 34px;
    padding: 0 12px;
    font-size: 12px;
  }

  .brand {
    font-size: 16px;
  }

  .hero {
    padding: 110px 0 58px;
  }

  .hero-subtitle {
    margin-top: 24px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-console {
    min-height: auto;
  }

  .signal-panel,
  .arch-modules {
    grid-template-columns: 1fr;
  }

  .memory-map {
    height: 150px;
  }

  .vision,
  .multimodal,
  .scenarios,
  .case-study,
  .roadmap,
  #experience,
  .technology,
  .principles {
    padding: 76px 0;
  }

  .feature-row,
  .capability-grid,
  .scenario-grid,
  .principle-list {
    grid-template-columns: 1fr;
  }

  .media-stack {
    min-height: 460px;
  }

  .image-card,
  .video-card,
  .voice-card {
    width: auto;
  }

  .image-card {
    left: 0;
    right: 42px;
  }

  .video-card {
    left: 42px;
    right: 0;
  }

  .voice-card {
    left: 16px;
    right: 28px;
  }

  .image-scene {
    height: 210px;
  }

  .case-visual {
    min-height: 340px;
  }

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