:root {
  --bg: #090b10;
  --bg-soft: #111520;
  --panel: #151c2a;
  --panel-hover: #1a2335;
  --text: #eef3ff;
  --text-muted: #aab4cf;
  --line: #26324a;
  --primary: #7aa2ff;
  --primary-strong: #5b86f7;
  --success: #90e0a8;
  --hero-gradient-a: rgba(90, 140, 255, 0.2);
  --hero-gradient-b: rgba(110, 255, 220, 0.12);
  --shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
}

body.theme-light {
  --bg: #f6f8fc;
  --bg-soft: #ebf0fb;
  --panel: #ffffff;
  --panel-hover: #f2f6ff;
  --text: #1b2538;
  --text-muted: #5b6b88;
  --line: #cfd8ea;
  --primary: #3f6de0;
  --primary-strong: #345ecc;
  --success: #1f9b57;
  --hero-gradient-a: rgba(63, 109, 224, 0.16);
  --hero-gradient-b: rgba(95, 192, 173, 0.14);
  --shadow: 0 14px 28px rgba(18, 38, 78, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(circle at 20% -10%, var(--hero-gradient-a), transparent 30%),
    radial-gradient(circle at 90% 10%, var(--hero-gradient-b), transparent 35%),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
}

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

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(146, 164, 204, 0.2);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
}

.nav-wrap {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

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

.brand-logo-co {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, var(--primary) 30%);
  background: color-mix(in srgb, var(--panel) 84%, transparent);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.4px;
  line-height: 1;
  background-image: linear-gradient(120deg, #7aa2ff 0%, #7fe7ff 48%, #8ff3b9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text {
  font-size: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.theme-toggle-site {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  color: var(--text);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: 0.2s ease;
}

.theme-toggle-site:hover {
  border-color: var(--primary);
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  padding: 8px 10px;
  border-radius: 8px;
  transition: 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(122, 162, 255, 0.12);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  color: var(--text);
  background: transparent;
  border-radius: 10px;
  width: 38px;
  height: 38px;
  font-size: 1.1rem;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 78px 0 42px;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(122, 162, 255, 0.35);
  color: #c9d8ff;
  font-size: 0.86rem;
  background: rgba(91, 134, 247, 0.13);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: linear-gradient(120deg, #9ab7ff 0%, #7fe7ff 45%, #8ff3b9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  margin: 18px auto 0;
  max-width: 760px;
  color: var(--text-muted);
  font-size: clamp(1rem, 2.6vw, 1.16rem);
}

.hero-support {
  margin: 20px auto 0;
  max-width: 760px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid color-mix(in srgb, var(--line) 72%, var(--primary) 28%);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--panel) 88%, transparent), color-mix(in srgb, var(--panel-hover) 84%, transparent));
  box-shadow: var(--shadow);
}

.hero-support-copy {
  margin: 0;
  color: color-mix(in srgb, var(--text) 86%, #d9e8ff 14%);
  font-size: 0.96rem;
}

.hero-support-metrics {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-support-note {
  color: var(--text-muted);
  font-size: 0.84rem;
}

.star-counter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--line) 64%, #f5c86a 36%);
  background: color-mix(in srgb, var(--panel) 82%, #2c2412 18%);
  color: color-mix(in srgb, var(--text) 88%, #ffe3a0 12%);
  font-size: 0.88rem;
  font-weight: 700;
}

.star-counter::before {
  content: "★";
  color: #f6c453;
  font-size: 0.92rem;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 74%, transparent);
  transition: 0.2s ease;
}

.github-link:hover {
  color: var(--text);
  border-color: var(--primary);
  background: color-mix(in srgb, var(--panel-hover) 76%, transparent);
}

.github-link svg {
  width: 16px;
  height: 16px;
}

.github-link-compact {
  padding: 6px 10px;
  font-size: 0.78rem;
  line-height: 1;
  align-self: center;
}

.github-link-compact svg {
  width: 13px;
  height: 13px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 0.92rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: 0.2s ease;
}

.btn svg {
  width: 16px;
  height: 16px;
}

.btn-star {
  gap: 8px;
  color: #221603;
  background: linear-gradient(135deg, #ffd86b 0%, #ffbf3f 46%, #ff9f2f 100%);
  box-shadow: 0 16px 36px rgba(255, 180, 58, 0.28);
}

.btn-star:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(255, 180, 58, 0.34);
}

.btn-star-large {
  min-width: 208px;
}

.btn-primary {
  background: var(--primary);
  color: #0d1830;
}

.btn-primary:hover {
  background: var(--primary-strong);
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
  background: color-mix(in srgb, var(--panel) 78%, transparent);
}

.btn-ghost:hover {
  border-color: var(--primary);
  background: rgba(91, 134, 247, 0.1);
}

.stat-grid {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-card {
  text-align: left;
  background: linear-gradient(165deg, rgba(25, 34, 52, 0.92), rgba(16, 21, 33, 0.92));
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 16px 15px;
  box-shadow: var(--shadow);
}

.stat-card h3 {
  margin: 0;
  color: #cae2ff;
  font-size: 1rem;
}

.stat-card p {
  margin: 5px 0 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.hero-glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(70px);
  opacity: 0.42;
  pointer-events: none;
}

.hero-glow-a {
  top: -150px;
  left: -80px;
  width: 320px;
  height: 320px;
  background: rgba(122, 162, 255, 0.7);
}

.hero-glow-b {
  top: 80px;
  right: -120px;
  width: 380px;
  height: 380px;
  background: rgba(115, 255, 220, 0.38);
}

.section {
  padding: 72px 0;
}

.section-soft {
  background: rgba(14, 19, 29, 0.75);
  border-top: 1px solid rgba(146, 164, 204, 0.14);
  border-bottom: 1px solid rgba(146, 164, 204, 0.14);
}

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

.section-head h2 {
  margin: 0;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: -0.01em;
}

.section-head p {
  margin: 12px auto 0;
  max-width: 760px;
  color: var(--text-muted);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  max-width: 520px;
  margin: 0 auto 20px;
  padding: 6px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  border: 1px solid var(--line);
}

.tab-button {
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 9px 12px;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: 0.2s ease;
}

.tab-button.active {
  color: var(--text);
  background: rgba(231, 238, 255, 0.12);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.demo-card,
.feature-card,
.ops-card,
.workflow-card,
.arch-card,
.deploy-card,
.demo-work-card,
.contributor-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  box-shadow: var(--shadow);
}

.demo-card {
  padding: 18px;
}

.demo-card h3 {
  margin: 0;
  font-size: 1rem;
}

.demo-card p {
  margin: 6px 0 14px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.demo-card video {
  width: 100%;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--line) 78%, #36538b 22%);
  background: color-mix(in srgb, var(--bg) 88%, #05070d 12%);
}

.hint {
  margin: 10px 0 0 !important;
  color: #93a9d8 !important;
}

.hint code {
  color: #cce1ff;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  padding: 18px;
}

.feature-card h3 {
  margin: 0;
  font-size: 1.02rem;
}

.feature-card p {
  margin: 8px 0 10px;
  color: var(--text-muted);
  font-size: 0.93rem;
}

.feature-card ul {
  margin: 0;
  padding-left: 18px;
  color: color-mix(in srgb, var(--text) 82%, #88a6e8 18%);
  font-size: 0.9rem;
}

.feature-card li + li {
  margin-top: 6px;
}

.ops-card {
  padding: 22px;
}

.ops-card h3 {
  margin: 0;
}

.ops-card p {
  color: var(--text-muted);
}

.terminal {
  margin-top: 12px;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--line) 72%, #38568e 28%);
  background: color-mix(in srgb, var(--bg) 84%, #0a101c 16%);
  padding: 12px 14px;
  display: grid;
  gap: 7px;
}

.terminal code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: color-mix(in srgb, var(--success) 78%, var(--text) 22%);
  font-size: 0.9rem;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.workflow-card {
  padding: 18px;
}

.phase-tag {
  display: inline-flex;
  border-radius: 999px;
  border: 1px solid rgba(122, 162, 255, 0.5);
  color: #bdd4ff;
  padding: 3px 10px;
  font-size: 0.78rem;
}

.workflow-card h3 {
  margin: 12px 0 8px;
}

.workflow-card p {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.workflow-card ol {
  margin: 0;
  padding-left: 19px;
  color: color-mix(in srgb, var(--text) 86%, #89a7e8 14%);
  font-size: 0.9rem;
}

.workflow-card li + li {
  margin-top: 7px;
}

.support-card {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.95fr);
  gap: 20px;
  padding: 24px;
  border-radius: 22px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, var(--primary) 30%);
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--hero-gradient-a) 90%, transparent), transparent 30%),
    linear-gradient(145deg, color-mix(in srgb, var(--panel) 94%, transparent), color-mix(in srgb, var(--panel-hover) 90%, transparent));
  box-shadow: var(--shadow);
  align-items: center;
}

.support-kicker {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, #f5c86a 30%);
  color: color-mix(in srgb, var(--text) 84%, #ffe3a0 16%);
  font-size: 0.82rem;
  background: color-mix(in srgb, var(--panel) 80%, #312610 20%);
}

.support-copy h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.15rem);
}

.support-copy p {
  margin: 10px 0 0;
  color: var(--text-muted);
}

.support-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.support-inline-note {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.arch-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.arch-card {
  padding: 18px;
}

.chip {
  margin: 0 0 12px;
  display: inline-flex;
  border-radius: 999px;
  font-size: 0.8rem;
  border: 1px solid #35508c;
  color: #cbddff;
  background: rgba(65, 99, 173, 0.2);
  padding: 4px 10px;
}

.arch-card h3 {
  margin: 0;
  font-size: 1rem;
}

.arch-card p:last-child {
  margin: 8px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.deploy-card {
  padding: 22px;
  text-align: center;
}

.deploy-card h2 {
  margin: 0;
}

.deploy-card p {
  margin: 10px auto 0;
  max-width: 760px;
  color: var(--text-muted);
}

.site-footer {
  border-top: 1px solid rgba(146, 164, 204, 0.18);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
}

.footer-wrap {
  min-height: 70px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
  color: color-mix(in srgb, var(--text-muted) 86%, #7f94bf 14%);
}

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

.demo-loading {
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 18px;
  color: var(--text-muted);
  text-align: center;
}

.demo-empty {
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 18px;
  color: var(--text-muted);
  text-align: center;
}

.demo-work-card {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 0;
  overflow: hidden;
  align-items: stretch;
}

.demo-media {
  padding: 18px;
  border-right: 1px solid var(--line);
  min-width: 0;
}

.demo-media h3 {
  margin: 0;
  font-size: 1rem;
}

.demo-media p {
  margin: 6px 0 12px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.demo-video-frame {
  width: 100%;
  max-height: 360px;
  min-height: 220px;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--line) 78%, #36538b 22%);
  background: color-mix(in srgb, var(--bg) 88%, #05070d 12%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.demo-video-frame video {
  width: 100%;
  height: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}

.demo-log-path {
  padding: 18px;
  background: color-mix(in srgb, var(--panel-hover) 70%, transparent);
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.demo-log-path h4 {
  margin: 0;
  font-size: 0.95rem;
}

.tool-path-list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--text);
  font-size: 0.88rem;
}

.tool-path-list li + li {
  margin-top: 6px;
}

.tool-path-list code,
.tool-path-list li {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.tool-path-list li {
  word-break: break-word;
}

.tool-args {
  margin-top: 3px;
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.4;
}

.log-loading {
  color: var(--text-muted);
  font-size: 0.86rem;
  padding: 8px 2px;
}

.hint-warn {
  color: #f59e0b;
}

.tool-path-scroll {
  margin-top: 8px;
  border: 1px solid color-mix(in srgb, var(--line) 74%, #3c5d99 26%);
  border-radius: 10px;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  padding: 8px 10px;
  max-height: 240px;
  overflow-y: auto;
}

.tool-path-scroll::-webkit-scrollbar {
  width: 8px;
}

.tool-path-scroll::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--line) 64%, var(--primary) 36%);
  border-radius: 999px;
}

.tool-path-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.tool-call-id {
  color: color-mix(in srgb, var(--primary) 84%, var(--text) 16%);
  font-weight: 700;
  margin-right: 4px;
}

.demo-actions {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-sm {
  padding: 8px 12px;
  font-size: 0.82rem;
}

.contributors-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.contributor-card {
  padding: 16px;
  transition: 0.2s ease;
}

.contributor-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--primary) 72%, var(--line) 28%);
}

.contributor-card h3 {
  margin: 0;
  font-size: 0.98rem;
}

.contributor-card p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

@media (max-width: 980px) {
  .stat-grid,
  .feature-grid,
  .workflow-grid,
  .arch-grid,
  .contributors-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-work-card {
    grid-template-columns: 1fr;
  }

  .support-card {
    grid-template-columns: 1fr;
  }

  .demo-media {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .demo-video-frame {
    max-height: 300px;
    min-height: 200px;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    right: 4vw;
    flex-direction: column;
    align-items: stretch;
    min-width: 180px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--panel) 94%, #101725 6%);
    padding: 8px;
    display: none;
  }

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

  .tabs {
    grid-template-columns: 1fr;
    border-radius: 14px;
  }

  .demo-grid,
  .stat-grid,
  .feature-grid,
  .workflow-grid,
  .arch-grid,
  .contributors-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 58px 0;
  }

  .hero-support {
    padding: 14px;
  }

  .support-card {
    padding: 20px;
  }

  .support-actions {
    align-items: stretch;
  }
}