:root {
  --bg: #f4efe4;
  --bg-deep: #13211d;
  --card: rgba(255, 250, 241, 0.86);
  --card-strong: rgba(14, 32, 28, 0.8);
  --line: rgba(19, 33, 29, 0.12);
  --text: #1d2a26;
  --muted: #5d695f;
  --gold: #b07a2a;
  --clay: #9a4f2b;
  --moss: #214137;
  --cream: #fffaf2;
  --shadow: 0 24px 80px rgba(35, 35, 20, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(176, 122, 42, 0.16), transparent 28%),
    radial-gradient(circle at 85% 10%, rgba(154, 79, 43, 0.2), transparent 24%),
    linear-gradient(180deg, #f7f1e8 0%, #efe5d4 42%, #f7f2ea 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(30px);
  z-index: 0;
  opacity: 0.32;
}

body::before {
  top: -8rem;
  right: -8rem;
  background: rgba(176, 122, 42, 0.28);
}

body::after {
  bottom: -10rem;
  left: -8rem;
  background: rgba(33, 65, 55, 0.2);
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding-bottom: 72px;
}

.page-shell::before {
  content: "";
  position: absolute;
  top: 180px;
  left: -40px;
  width: 180px;
  height: 500px;
  background: linear-gradient(180deg, rgba(176, 122, 42, 0.14), transparent);
  filter: blur(18px);
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-top: 18px;
  padding: 14px 20px;
  border: 1px solid rgba(255, 250, 241, 0.55);
  border-radius: 999px;
  background: rgba(16, 34, 30, 0.78);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--cream);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.site-nav {
  display: inline-flex;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a {
  color: rgba(255, 248, 238, 0.86);
  text-decoration: none;
  font-size: 0.94rem;
}

.hero,
.section {
  margin-top: 28px;
  padding: 42px;
  border: 1px solid rgba(255, 250, 241, 0.62);
  border-radius: 36px;
  background: rgba(255, 250, 241, 0.7);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  min-height: 560px;
  align-items: stretch;
  overflow: hidden;
}

.hero-simple {
  min-height: auto;
  grid-template-columns: 1fr 0.8fr;
  align-items: center;
}

.hero-simple .hero-copy {
  max-width: 70ch;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 700;
}

.hero h1,
.section-heading h2 {
  margin: 0;
  line-height: 1.06;
  font-weight: 700;
}

.hero h1 {
  max-width: 11ch;
  font-size: clamp(3rem, 6vw, 5.8rem);
}

.hero-text,
.section-heading p,
.agent-card p,
.skill-card p,
.timeline-step p,
.roadmap-grid p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-text {
  max-width: 62ch;
  font-size: 1.05rem;
  margin: 20px 0 28px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 160px;
  padding: 14px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

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

.button-primary {
  color: var(--cream);
  background: linear-gradient(135deg, #17332c 0%, #325748 100%);
  box-shadow: 0 20px 48px rgba(33, 65, 55, 0.28);
}

.button-secondary {
  color: var(--text);
  border: 1px solid rgba(29, 42, 38, 0.14);
  background: rgba(255, 255, 255, 0.58);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.hero-metrics li,
.hero-card,
.agent-card,
.skill-card,
.timeline-step,
.roadmap-grid article {
  border: 1px solid var(--line);
  border-radius: 28px;
}

.hero-metrics li {
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.55);
}

.hero-metrics strong {
  display: block;
  margin-bottom: 8px;
  font-size: 2rem;
  color: var(--moss);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: stretch;
  justify-content: center;
}

.hero-orbit {
  position: relative;
  min-height: 260px;
  border-radius: 34px;
  border: 1px solid rgba(29, 42, 38, 0.08);
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0.08)),
    linear-gradient(180deg, rgba(255, 250, 241, 0.72), rgba(255, 250, 241, 0.28));
  overflow: hidden;
}

.orbit-ring,
.orbit-center,
.orbit-node {
  position: absolute;
}

.orbit-ring {
  inset: 50%;
  border: 1px dashed rgba(176, 122, 42, 0.32);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit-ring-large {
  width: 250px;
  height: 250px;
  animation: spin 18s linear infinite;
}

.orbit-ring-small {
  width: 160px;
  height: 160px;
  border-color: rgba(33, 65, 55, 0.2);
  animation: spinReverse 12s linear infinite;
}

.orbit-center {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.orbit-center img,
.orbit-node img {
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid rgba(255, 250, 241, 0.88);
  box-shadow: 0 16px 36px rgba(24, 35, 31, 0.12);
}

.orbit-center img {
  width: 88px;
  height: 88px;
}

.orbit-center span,
.orbit-node span {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 250, 241, 0.82);
  color: var(--moss);
  font-size: 0.78rem;
  font-weight: 700;
}

.orbit-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.orbit-node img {
  width: 56px;
  height: 56px;
}

.orbit-node-a {
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
}

.orbit-node-b {
  top: 50%;
  right: 26px;
  transform: translateY(-50%);
}

.orbit-node-c {
  bottom: 18px;
  left: 28%;
}

.orbit-node-d {
  top: 46px;
  left: 34px;
}

.hero-card {
  width: 100%;
  padding: 28px;
  color: var(--cream);
  background:
    linear-gradient(180deg, rgba(31, 56, 48, 0.92), rgba(18, 31, 28, 0.98)),
    radial-gradient(circle at top left, rgba(176, 122, 42, 0.22), transparent 40%);
}

.glow-card {
  position: relative;
  overflow: hidden;
}

.glow-card::after {
  content: "";
  position: absolute;
  inset: auto -80px -90px auto;
  width: 220px;
  height: 220px;
  background: rgba(176, 122, 42, 0.2);
  border-radius: 50%;
  filter: blur(16px);
}

.card-label {
  margin: 0 0 12px;
  color: rgba(255, 236, 199, 0.82);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.74rem;
}

.hero-card h2 {
  margin: 0 0 16px;
  line-height: 1.24;
  font-size: 1.9rem;
}

.hero-card ul {
  margin: 0;
  padding-left: 18px;
  line-height: 1.8;
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.section-heading h2 {
  font-size: clamp(2rem, 3vw, 3.4rem);
}

.section-heading p {
  margin: 0;
  max-width: 60ch;
}

.signal-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.signal-chip {
  padding: 18px 20px;
  border: 1px solid rgba(29, 42, 38, 0.08);
  border-radius: 24px;
  background: rgba(255, 250, 241, 0.74);
  box-shadow: var(--shadow);
}

.signal-chip span {
  display: block;
  margin-bottom: 8px;
  color: var(--gold);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
}

.signal-chip strong {
  font-size: 1.05rem;
}

.architecture-grid,
.scenario-grid,
.profile-grid {
  display: grid;
  gap: 18px;
}

.architecture-grid {
  grid-template-columns: 1.1fr 1fr 1fr;
}

.architecture-card,
.scenario-card,
.profile-card {
  padding: 24px;
  border: 1px solid rgba(29, 42, 38, 0.08);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.58);
  box-shadow: 0 18px 48px rgba(17, 32, 28, 0.05);
}

.architecture-card-primary {
  background:
    linear-gradient(135deg, rgba(255, 246, 229, 0.96), rgba(244, 229, 204, 0.86));
}

.architecture-index {
  display: inline-flex;
  padding: 6px 10px;
  margin-bottom: 14px;
  border-radius: 999px;
  background: rgba(176, 122, 42, 0.12);
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 700;
}

.architecture-card ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.architecture-quote {
  margin-top: 18px;
  padding: 22px 24px;
  border-radius: 24px;
  border-left: 4px solid var(--gold);
  background: rgba(33, 65, 55, 0.06);
  color: var(--moss);
  font-size: 1.08rem;
  line-height: 1.75;
}

.agent-grid,
.skill-grid,
.roadmap-grid {
  display: grid;
  gap: 18px;
}

.agent-groups {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.group-pill {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(176, 122, 42, 0.1);
  color: var(--clay);
  font-size: 0.88rem;
  font-weight: 700;
}

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

.agent-card {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.6);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.agent-card:hover,
.skill-card:hover,
.timeline-step:hover,
.roadmap-grid article:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 48px rgba(17, 32, 28, 0.08);
}

.feature-card {
  background: linear-gradient(135deg, rgba(255, 247, 233, 0.96), rgba(246, 233, 211, 0.92));
}

.agent-card img {
  width: 92px;
  height: 92px;
  object-fit: cover;
  border-radius: 24px;
  border: 1px solid rgba(29, 42, 38, 0.12);
}

.agent-card h3,
.skill-card h3,
.timeline-step h3,
.roadmap-grid h3 {
  margin: 0 0 8px;
}

.agent-card p {
  margin: 0 0 10px;
}

.agent-card span {
  color: var(--clay);
  font-size: 0.92rem;
}

.card-link {
  display: inline-flex;
  margin-top: 12px;
  color: var(--moss);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.92rem;
}

.section-dark .card-link {
  color: rgba(255, 250, 241, 0.88);
}

.agent-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}

.agent-tags li {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(33, 65, 55, 0.08);
  color: var(--moss);
  font-size: 0.78rem;
  font-weight: 700;
}

.section-dark {
  background:
    linear-gradient(180deg, rgba(15, 31, 27, 0.95), rgba(17, 23, 22, 0.98)),
    radial-gradient(circle at top right, rgba(176, 122, 42, 0.18), transparent 34%);
  border-color: rgba(255, 255, 255, 0.08);
}

.section-dark .section-heading h2,
.section-dark .skill-card h3 {
  color: var(--cream);
}

.section-dark .section-heading p {
  color: rgba(255, 250, 241, 0.72);
}

.skill-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.skill-card {
  padding: 22px;
  background: rgba(255, 255, 255, 0.06);
}

.section-dark .skill-card p {
  color: rgba(255, 250, 241, 0.72);
}

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

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

.profile-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.profile-head img {
  width: 74px;
  height: 74px;
  object-fit: cover;
  border-radius: 22px;
  border: 1px solid rgba(29, 42, 38, 0.12);
}

.profile-role {
  margin: 0 0 4px;
  color: var(--gold);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.profile-card h3 {
  margin: 0;
}

.profile-card p {
  color: var(--muted);
  line-height: 1.7;
}

.profile-card ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.detail-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
}

.detail-sidebar,
.detail-main {
  padding: 24px;
  border: 1px solid rgba(29, 42, 38, 0.08);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 18px 48px rgba(17, 32, 28, 0.05);
}

.detail-sidebar img {
  width: 100%;
  max-width: 220px;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 28px;
  border: 1px solid rgba(29, 42, 38, 0.08);
}

.detail-badge {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(176, 122, 42, 0.12);
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.detail-sidebar h2,
.detail-main h3 {
  margin: 0 0 12px;
}

.detail-sidebar p,
.detail-main p {
  color: var(--muted);
  line-height: 1.75;
}

.detail-list,
.detail-main ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.detail-main section + section {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(29, 42, 38, 0.08);
}

.scenario-card span {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.scenario-card p {
  color: var(--muted);
  line-height: 1.7;
}

.scenario-card-dev {
  background: linear-gradient(180deg, rgba(227, 241, 238, 0.92), rgba(255, 255, 255, 0.75));
}

.scenario-card-dev span {
  background: rgba(33, 65, 55, 0.12);
  color: var(--moss);
}

.scenario-card-finance {
  background: linear-gradient(180deg, rgba(249, 239, 221, 0.94), rgba(255, 255, 255, 0.78));
}

.scenario-card-finance span {
  background: rgba(176, 122, 42, 0.12);
  color: var(--gold);
}

.scenario-card-collab {
  background: linear-gradient(180deg, rgba(245, 232, 228, 0.94), rgba(255, 255, 255, 0.8));
}

.scenario-card-collab span {
  background: rgba(154, 79, 43, 0.12);
  color: var(--clay);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 32px;
  right: 32px;
  top: 20px;
  height: 1px;
  background: linear-gradient(90deg, rgba(176, 122, 42, 0.12), rgba(176, 122, 42, 0.5), rgba(176, 122, 42, 0.12));
}

.timeline-step {
  position: relative;
  padding: 24px 20px;
  background: rgba(255, 255, 255, 0.58);
}

.timeline-step span {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  border-radius: 999px;
  background: rgba(176, 122, 42, 0.14);
  color: var(--gold);
  font-weight: 700;
}

.section-accent {
  background:
    linear-gradient(135deg, rgba(33, 65, 55, 0.94), rgba(154, 79, 43, 0.9)),
    radial-gradient(circle at top left, rgba(255, 236, 199, 0.18), transparent 28%);
  border-color: rgba(255, 250, 241, 0.12);
}

.section-accent .section-heading h2,
.section-accent .roadmap-grid h3 {
  color: var(--cream);
}

.section-accent .section-heading p,
.section-accent .roadmap-grid p {
  color: rgba(255, 250, 241, 0.78);
}

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

.roadmap-grid article {
  padding: 24px;
  background: rgba(255, 250, 241, 0.08);
  backdrop-filter: blur(10px);
}

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

.cta-copy {
  max-width: 60ch;
}

.cta-copy h2 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.12;
}

.cta-copy p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 230px;
}

.cta-actions .button {
  width: 100%;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  margin-top: 26px;
  padding: 28px 30px;
  border-radius: 32px;
  border: 1px solid rgba(255, 250, 241, 0.42);
  background: rgba(18, 31, 28, 0.88);
  color: var(--cream);
  box-shadow: var(--shadow);
}

.site-footer h2 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.2;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: rgba(255, 250, 241, 0.84);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 250, 241, 0.12);
  background: rgba(255, 255, 255, 0.04);
}

@keyframes spin {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes spinReverse {
  from {
    transform: translate(-50%, -50%) rotate(360deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(0deg);
  }
}

@media (max-width: 1080px) {
  .hero,
  .signal-bar,
  .architecture-grid,
  .timeline,
  .skill-grid,
  .agent-grid,
  .profile-grid,
  .detail-grid,
  .roadmap-grid,
  .scenario-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero {
    min-height: auto;
  }

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

  .cta-actions {
    flex-direction: row;
    min-width: 0;
    flex-wrap: wrap;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 18px, 100%);
  }

  .site-header {
    position: static;
    border-radius: 28px;
    flex-direction: column;
    align-items: flex-start;
  }

  .hero,
  .section,
  .signal-bar,
  .architecture-grid,
  .hero-metrics,
  .timeline,
  .skill-grid,
  .agent-grid,
  .profile-grid,
  .detail-grid,
  .roadmap-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .hero,
  .section {
    padding: 26px 20px;
    border-radius: 28px;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(2.4rem, 12vw, 4rem);
  }

  .hero-orbit {
    min-height: 220px;
  }

  .orbit-ring-large {
    width: 210px;
    height: 210px;
  }

  .orbit-ring-small {
    width: 126px;
    height: 126px;
  }

  .orbit-node-b {
    right: 16px;
  }

  .orbit-node-d {
    left: 14px;
  }

  .agent-card {
    grid-template-columns: 76px 1fr;
  }

  .agent-card img {
    width: 76px;
    height: 76px;
  }

  .timeline::before {
    display: none;
  }

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