:root {
  --bg: #eef6ff;
  --bg-soft: #dcecff;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: #f5faff;
  --line: rgba(48, 121, 255, 0.14);
  --line-strong: rgba(48, 121, 255, 0.28);
  --text: #26415d;
  --text-soft: #58789a;
  --title: #0d2b4e;
  --brand: #2d8cff;
  --brand-2: #1768ff;
  --brand-3: #5fd2ff;
  --success: #18b57d;
  --warning: #ffb020;
  --danger: #f35d73;
  --shadow: 0 24px 60px rgba(31, 88, 168, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(45, 140, 255, 0.22), transparent 24%),
    radial-gradient(circle at right 8% top 10%, rgba(95, 210, 255, 0.22), transparent 20%),
    linear-gradient(180deg, #f4f9ff 0%, #edf6ff 38%, #f7fbff 100%);
}

[id] {
  scroll-margin-top: 96px;
}

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

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

code,
pre {
  font-family: Consolas, "Courier New", monospace;
}

.container {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
}

.copy-right {
  font-size: 14px;
  color: var(--text-soft);
  margin-top: 10px;
}



.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  background: rgba(247, 251, 255, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-weight: 700;
  color: var(--title);
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
  color: #ffffff;
  box-shadow: 0 14px 30px rgba(45, 140, 255, 0.28);
}

.brand-text small {
  display: block;
  margin-top: 2px;
  color: var(--text-soft);
  font-weight: 500;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex: 1;
  min-width: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--text-soft);
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--title);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-toggle {
  display: none;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--brand-3), var(--brand));
  box-shadow: 0 14px 34px rgba(45, 140, 255, 0.22);
}

.button.secondary {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.72);
  color: var(--title);
}

.button svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.hero {
  padding: 74px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 30px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(77, 163, 255, 0.1);
  border: 1px solid rgba(77, 163, 255, 0.2);
  color: var(--text);
  font-size: 14px;
}

.hero h1,
.section-head h2,
.content-hero h1 {
  margin: 18px 0 18px;
  line-height: 1.1;
  color: var(--title);
}

.hero h1 {
  font-size: clamp(30px, 5vw, 40px);
}

.hero p,
.section-head p,
.content-hero p,
.lead {
  color: var(--text-soft);
  line-height: 1.8;
  font-size: 17px;
}

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

.hero-actions {
  margin-top: 28px;
}

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

.hero-meta span,
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--line);
  color: var(--text-soft);
  font-size: 14px;
}

.panel,
.showcase,
.doc-card,
.feature-card,
.metric-card,
.code-card,
.screenshot-card,
.timeline-item,
.note,
.table-wrap,
.quote {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.showcase {
  padding: 22px;
  overflow: hidden;
}

.showcase-grid {
  display: grid;
  gap: 16px;
}

.showcase-card {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(241, 248, 255, 0.82));
}

.showcase-card h3,
.feature-card h3,
.doc-card h3,
.code-card h3,
.timeline-item h3,
.screenshot-card h3 {
  margin: 24px 0 10px;
  color: var(--title);
}

.showcase-card h3,
.doc-card h3 {
  margin: 10px 0 10px;
}

.doc-card > h3:first-child,
.feature-card > h3:first-child,
.code-card > h3:first-child,
.timeline-item > h3:first-child,
.screenshot-card > h3:first-child {
  margin-top: 0;
}

.showcase-card p,
.feature-card p,
.doc-card p,
.code-card p,
.timeline-item p,
.screenshot-card p,
.note p,
.quote p {
  margin: 0 0 12px;
  color: var(--text-soft);
  line-height: 1.7;
}

.showcase-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.showcase-flow div {
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--line);
}

.section {
  padding: 40px 0;
}

.section-head {
  margin-bottom: 24px;
}

.section-head h2,
.content-hero h1 {
  font-size: clamp(28px, 4vw, 40px);
}

.grid-3,
.grid-2,
.docs-grid,
.code-grid,
.shots-grid,
.metrics-grid,
.comparison-grid {
  display: grid;
  gap: 18px;
}

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

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

.feature-card,
.doc-card,
.metric-card,
.code-card,
.screenshot-card,
.timeline-item {
  padding: 22px;
}

.metric-number {
  display: block;
  margin-bottom: 10px;
  font-size: 34px;
  font-weight: 700;
  color: var(--title);
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.badge-list span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(45, 140, 255, 0.08);
  border: 1px solid rgba(45, 140, 255, 0.18);
  color: var(--brand-2);
  font-size: 14px;
}

.content-hero {
  padding: 70px 0 24px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
  gap: 24px;
}

.aside {
  position: sticky;
  top: 94px;
  align-self: start;
  padding: 18px;
}

.aside h3 {
  margin: 0 0 12px;
  color: var(--title);
}

.aside a {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--text-soft);
}

.aside-group + .aside-group {
  margin-top: 8px;
}

.aside-sub {
  margin-top: 4px;
  padding-left: 14px;
}

.aside-sub a {
  padding: 7px 10px;
  font-size: 14px;
}

.aside a:hover {
  color: var(--title);
  background: rgba(45, 140, 255, 0.06);
}

.stack {
  display: grid;
  gap: 18px;
}

.note {
  padding: 18px 20px;
  margin-top: 14px;
}

.note strong {
  color: var(--title);
}

.note.warning {
  border-color: rgba(255, 211, 125, 0.26);
}

.note.success {
  border-color: rgba(118, 227, 192, 0.24);
}

.table-wrap {
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--title);
  background: rgba(45, 140, 255, 0.05);
}

tbody tr:last-child td {
  border-bottom: 0;
}

.code-window {
  margin: 14px 0 0;
  padding: 20px;
  overflow: auto;
  border-radius: 16px;
  background: #06111f;
  border: 1px solid rgba(77, 163, 255, 0.16);
  color: #dbe9ff;
  line-height: 1.7;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.code-tip {
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(45, 140, 255, 0.2);
  border-left: 3px solid var(--brand);
  border-radius: 10px;
  background: rgba(45, 140, 255, 0.06);
  color: #3d5f84;
  font-size: 14px;
  line-height: 1.8;
}

.doc-card .timeline,
.doc-card .grid-2,
.doc-card .grid-3,
.doc-card .table-wrap,
.doc-card .shot,
.doc-card .quote {
  margin-top: 14px;
}

.doc-card .code-window + .code-window {
  margin-top: 12px;
}

.shot {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
}

.shot img {
  width: 100%;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item strong {
  display: inline-flex;
  min-width: 74px;
  margin-bottom: 10px;
  color: var(--brand-3);
}

.quote {
  padding: 24px;
}

.quote p {
  font-size: 18px;
}

.page-footer {
  padding: 36px 0 54px;
  color: var(--text-soft);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

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

.footer-links a:hover {
  color: var(--title);
}

.related-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.related-card strong {
  color: var(--title);
}

.repo-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.repo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.75);
  color: var(--title);
}

.repo-link svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.repo-link:hover {
  background: rgba(45, 140, 255, 0.08);
}

@media (max-width: 980px) {
  .hero-grid,
  .split,
  .grid-2,
  .grid-3,
  .docs-grid,
  .code-grid,
  .shots-grid,
  .metrics-grid,
  .comparison-grid,
  .showcase-flow {
    grid-template-columns: 1fr;
  }

  .aside {
    position: static;
  }

  .nav {
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.02);
    color: var(--title);
    cursor: pointer;
  }

  .nav-menu {
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 12px 0 4px;
  }

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

  .nav-links,
  .nav-actions {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

  .related-card {
    flex-direction: column;
  }
}