/* DeepPath 智能知识库 产品站样式 */
:root {
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-primary: #0284c7;
  --color-primary-dark: #0369a1;
  --gradient-primary: linear-gradient(135deg, #0f172a, #0284c7);
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
  --radius: 12px;
  --header-height: 60px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.container-wide { max-width: 1120px; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }

img { max-width: 100%; height: auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--header-height); height: auto; padding: 10px 0; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--color-text); }
.brand-logo { width: 28px; height: 28px; }
.site-nav { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.site-nav a { color: var(--color-text-secondary); font-size: 14px; font-weight: 500; }
.site-nav a:hover, .site-nav a.is-active { color: var(--color-text); }
.nav-github { color: var(--color-text) !important; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-primary {
  background: var(--gradient-primary);
  color: #fff !important;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.28);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(2, 132, 199, 0.38); }
.btn-outline { border-color: var(--color-border); color: var(--color-text) !important; background: #fff; }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary) !important; }
.btn-text { border: none; background: transparent; color: var(--color-primary) !important; padding-left: 8px; padding-right: 8px; }

/* Hero */
.hero {
  padding: 88px 0 72px;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 50% at 50% -10%, rgba(2, 132, 199, 0.10), transparent),
    var(--color-bg);
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  color: var(--color-primary-dark);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero h1 { font-size: 44px; line-height: 1.25; letter-spacing: -0.02em; margin-bottom: 20px; }
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  max-width: 680px;
  margin: 0 auto 32px;
  font-size: 17px;
  color: var(--color-text-secondary);
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.hero-pills { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.hero-pills span {
  padding: 6px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--color-border);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}
.hero-shot { max-width: 880px; margin: 0 auto; }
.hero-note { margin-top: 16px; font-size: 14px; color: var(--color-text-muted); }
.feature-shot { max-width: 880px; margin: 40px auto 0; }
.feature-note { text-align: center; margin-top: 12px; font-size: 14px; color: var(--color-text-muted); }

.browser-frame {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #fff;
}
.browser-frame img { display: block; width: 100%; }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-title { font-size: 32px; text-align: center; letter-spacing: -0.01em; margin-bottom: 12px; }
.section-sub { text-align: center; color: var(--color-text-secondary); max-width: 640px; margin: 0 auto 48px; }

/* Feature cards */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-icon { font-size: 28px; margin-bottom: 14px; }
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { font-size: 14.5px; color: var(--color-text-secondary); }
.card-wide {
  margin-top: 20px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: linear-gradient(135deg, #f0f9ff, #f0fdfa);
  border-color: #bae6fd;
}
.card-wide .card-icon { margin-bottom: 0; }

/* Scenarios */
.scenario-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.scenario {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}
.scenario-thumb {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 16px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: #fff;
}
.scenario h3 { font-size: 16px; margin-bottom: 6px; }
.scenario-materials { font-size: 13px; color: var(--color-primary); font-weight: 600; margin-bottom: 8px; }
.scenario p:last-child { font-size: 14px; color: var(--color-text-secondary); }

.solution-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 28px;
}
.solution-switch a {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 600;
  background: #fff;
}
.solution-switch a.is-active,
.solution-switch a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  background: #f0f9ff;
}
.solution-card .card-meta {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

/* Download */
.download-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.download-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.download-card.recommended { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15); }
.download-os { font-size: 18px; font-weight: 700; }
.download-arch { font-size: 13px; color: var(--color-text-muted); margin-bottom: 8px; }
.checksum-link { font-size: 12.5px; color: var(--color-text-muted); }
.recommend-badge {
  position: absolute;
  top: -10px;
  right: 16px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
}
.download-meta { text-align: center; margin-top: 24px; font-size: 14px; color: var(--color-text-muted); }

.agent-install {
  margin-top: 48px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 32px;
}
.agent-install h3 { font-size: 17px; margin-bottom: 10px; }
.agent-install > p {
  color: var(--color-text-secondary);
  font-size: 14.5px;
  margin-bottom: 16px;
  max-width: 720px;
}
.agent-prompt-wrap { display: flex; flex-direction: column; align-items: stretch; gap: 12px; }
.agent-prompt {
  margin: 0;
  max-height: 280px;
  overflow: auto;
  padding: 16px 18px;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 10px;
  font-size: 12.5px;
  line-height: 1.65;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  white-space: pre-wrap;
  word-break: break-word;
  tab-size: 2;
}
.agent-prompt-wrap .btn { align-self: flex-start; min-width: 140px; }
.agent-prompt-wrap .btn.is-copied {
  background: #059669;
  border-color: #059669;
}

.requirements {
  margin-top: 48px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.requirements-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}
.requirements-kicker {
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
.requirements-heading h3 { font-size: 22px; margin-bottom: 6px; }
.requirements-heading > div > p:last-child {
  max-width: 720px;
  color: var(--color-text-secondary);
  font-size: 14.5px;
}
.requirements-edition,
.requirements-plan-label,
.enterprise-install-label {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.requirements-edition {
  padding: 5px 12px;
  color: var(--color-primary-dark);
  background: #e0f2fe;
}
.requirements-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.requirements-plan {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 22px;
  background: var(--color-bg-alt);
}
.requirements-plan.is-recommended {
  border-color: #7dd3fc;
  background: #f0f9ff;
}
.requirements-plan-label {
  padding: 3px 10px;
  color: var(--color-text-secondary);
  background: #e2e8f0;
  margin-bottom: 10px;
}
.requirements-plan.is-recommended .requirements-plan-label {
  color: var(--color-primary-dark);
  background: #bae6fd;
}
.requirements-plan h4 { font-size: 18px; margin-bottom: 2px; }
.requirements-plan-desc {
  min-height: 48px;
  color: var(--color-text-secondary);
  font-size: 14px;
  margin-bottom: 14px;
}
.requirements-specs {
  display: grid;
  gap: 8px;
}
.requirements-specs > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.requirements-specs dt {
  color: var(--color-text-muted);
  font-size: 13px;
}
.requirements-specs dd {
  text-align: right;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 650;
}
.requirements-plan-note {
  color: var(--color-text-muted);
  font-size: 12.5px;
  margin-top: 12px;
}
.requirements-notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
  padding: 18px 0 22px;
  border-bottom: 1px solid var(--color-border);
}
.requirements-notes p {
  color: var(--color-text-secondary);
  font-size: 13.5px;
}
.requirements-notes strong {
  display: block;
  color: var(--color-text);
  margin-bottom: 3px;
}
.enterprise-install {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 24px;
  padding: 24px;
  border-radius: 10px;
  background: #0f172a;
  color: #fff;
}
.enterprise-install > div { max-width: 700px; }
.enterprise-install-label {
  padding: 3px 10px;
  color: #bae6fd;
  background: rgba(14, 165, 233, 0.16);
  margin-bottom: 8px;
}
.enterprise-install h4 { font-size: 18px; margin-bottom: 4px; }
.enterprise-install p { color: #cbd5e1; font-size: 13.5px; }
.enterprise-install .btn {
  flex: 0 0 auto;
  color: #0f172a !important;
  background: #fff;
  box-shadow: none;
}

.quick-steps { margin-top: 32px; text-align: center; }
.quick-steps h3 { font-size: 17px; margin-bottom: 16px; }
.quick-steps ol {
  display: inline-block;
  text-align: left;
  padding-left: 22px;
  color: var(--color-text-secondary);
  font-size: 15px;
  margin-bottom: 24px;
}
.quick-steps li { margin-bottom: 6px; }
.quick-steps code {
  background: #f1f5f9;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 13.5px;
}
/* Footer */
.site-footer { border-top: 1px solid var(--color-border); padding: 48px 0 32px; background: var(--color-bg-alt); }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
.footer-inner p { font-size: 13.5px; color: var(--color-text-muted); margin-top: 4px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 14px; color: var(--color-text-secondary); }
.footer-family { display: flex; flex-direction: column; gap: 6px; }
.footer-family strong { font-size: 13px; color: var(--color-text); }
.footer-family a { font-size: 13.5px; color: var(--color-text-secondary); }
.footer-copy { margin-top: 24px; font-size: 13px; color: var(--color-text-muted); }
.beian-slot a {
  margin-left: 12px;
  color: var(--color-text-muted);
}
.beian-slot a:hover { color: var(--color-primary); }

/* 安装手册页（guide.html） */
.guide-main { max-width: 820px; margin: 0 auto; padding: 56px 24px 88px; }
.prose h1 { font-size: 32px; margin-bottom: 24px; letter-spacing: -0.01em; }
.prose h2 {
  font-size: 24px;
  margin: 48px 0 16px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}
.prose h2:first-of-type { border-top: none; padding-top: 0; margin-top: 0; }
.prose h3 { font-size: 18px; margin: 32px 0 12px; }
.prose p { margin-bottom: 16px; color: var(--color-text-secondary); }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 26px; color: var(--color-text-secondary); }
.prose li { margin-bottom: 6px; }
.prose li > ul, .prose li > ol { margin-top: 6px; margin-bottom: 0; }
.prose strong { color: var(--color-text); }
.prose code {
  background: #f1f5f9;
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.88em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.prose pre {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 10px;
  padding: 18px 20px;
  overflow-x: auto;
  margin-bottom: 20px;
}
.prose pre code { background: none; padding: 0; color: inherit; font-size: 13.5px; }
.prose img {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  margin: 20px auto;
  display: block;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 14.5px;
}
.prose th, .prose td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
}
.prose th { background: var(--color-bg-alt); font-weight: 600; }
.prose blockquote {
  border-left: 3px solid var(--color-primary);
  background: #f0f9ff;
  padding: 12px 18px;
  border-radius: 0 8px 8px 0;
  margin-bottom: 20px;
}
.prose blockquote p { margin-bottom: 0; }
.prose hr { border: none; border-top: 1px solid var(--color-border); margin: 40px 0; }

.page-hero { padding: 72px 0 28px; text-align: left; }
.page-hero h1 { font-size: 36px; line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 16px; }
.page-hero .hero-sub { margin: 0; max-width: 760px; text-align: left; }
.lead {
  font-size: 18px;
  color: var(--color-text);
  background: #f0f9ff;
  border-left: 3px solid var(--color-primary);
  padding: 16px 20px;
  border-radius: 0 10px 10px 0;
  margin: 0 0 32px;
}
.kicker { font-size: 13px; font-weight: 700; letter-spacing: 0.04em; color: var(--color-primary-dark); margin-bottom: 8px; }

/* 客户视角的现状问题 */
.pain-grid { gap: 24px; }
.pain {
  border-left: 3px solid var(--color-border);
  padding: 4px 0 4px 20px;
}
.pain h3 { font-size: 16.5px; margin-bottom: 8px; }
.pain p { font-size: 14.5px; color: var(--color-text-secondary); line-height: 1.75; }

.subsection-title {
  margin: 56px 0 8px;
  text-align: center;
  font-size: 20px;
}

.process {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 0;
  counter-reset: step;
  margin: 0 0 20px;
}
.process li {
  counter-increment: step;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 16px 16px;
  min-height: 108px;
}
.process li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.process strong { display: block; font-size: 15px; margin-bottom: 4px; }
.process span { font-size: 13px; color: var(--color-text-secondary); }
.process-3 { grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 32px; }
.process-3 li { padding: 22px 22px 20px; }
.process-3 strong { font-size: 16px; margin-bottom: 6px; }
.process-3 span { font-size: 14px; line-height: 1.7; }

.compare { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 8px 0 28px; }
.compare th, .compare td { border: 1px solid var(--color-border); padding: 12px 14px; text-align: left; vertical-align: top; }
.compare th { background: var(--color-bg-alt); font-weight: 600; }
.compare td:last-child { background: #f0f9ff; }

.edition-table th:first-child { width: 44%; }
.edition-table td:not(:first-child), .edition-table th:not(:first-child) { text-align: center; width: 28%; }
.edition-table td:not(:first-child) { font-size: 18px; color: var(--color-primary-dark); }
.edition-table .edition-group th {
  background: #f0f9ff;
  color: var(--color-primary-dark);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 8px 14px;
}

.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.cap h3 { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.status {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
}
.status-now { background: #dcfce7; color: #166534; }
.status-plan { background: #f1f5f9; color: #475569; }
.status-scene { background: #e0f2fe; color: #075985; }

.arch {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: var(--radius);
  padding: 24px 28px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13.5px;
  line-height: 1.7;
  overflow-x: auto;
  margin: 12px 0 28px;
  white-space: pre;
}

.scene-steps { display: grid; gap: 10px; margin: 16px 0 28px; }
.scene-steps > div {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  align-items: start;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 14px 16px;
}
.scene-steps b {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #0f172a;
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 13px;
}
.scene-steps strong {
  display: block;
  font-size: 15px;
  line-height: 1.4;
  margin-bottom: 4px;
  white-space: nowrap;
}
.scene-steps p {
  margin: 0;
  font-size: 14.5px;
  color: var(--color-text-secondary);
}
.note { font-size: 13.5px; color: var(--color-text-muted); margin-top: 8px; }

/* 架构流程图 */
.arch-figure { margin: 16px 0 28px; }
.arch-svg { display: block; width: 100%; height: auto; font-family: inherit; }
.arch-img { display: block; width: 100%; height: auto; }
.arch-figure figcaption {
  margin-top: 12px;
  text-align: center;
  font-size: 13.5px;
  color: var(--color-text-muted);
}
.arch-svg text { text-anchor: middle; dominant-baseline: middle; }
.arch-link { stroke: #94a3b8; stroke-width: 2; }

.arch-source rect { fill: #fff; stroke: var(--color-border); stroke-width: 1; }
.arch-source text { fill: var(--color-text-secondary); font-size: 15px; font-weight: 500; }

.arch-core > rect { fill: #0f172a; }
.arch-core-title { fill: #fff; font-size: 19px; font-weight: 700; }
.arch-chip { fill: rgba(255, 255, 255, 0.08); stroke: rgba(255, 255, 255, 0.28); stroke-width: 1; }
.arch-chip-text { fill: #e2e8f0; font-size: 14px; font-weight: 600; }

.arch-output rect { fill: #fff; stroke: #bae6fd; stroke-width: 1.5; }
.arch-output text { fill: var(--color-primary-dark); font-size: 15px; font-weight: 600; }

.arch-target rect { fill: #f0f9ff; stroke: #bae6fd; stroke-width: 1.5; }
.arch-target text { fill: var(--color-text); font-size: 15px; font-weight: 600; }

.cta-band {
  margin-top: 24px;
  padding: 28px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #0f172a, #0369a1);
  color: #fff;
}
.cta-band h2, .cta-band p { color: #fff; text-align: left; }
.cta-band p { margin: 8px 0 18px; opacity: 0.9; }
.cta-band .btn-primary { background: #fff; color: #0f172a !important; box-shadow: none; }
.cta-band .btn-outline { background: transparent; color: #fff !important; border-color: rgba(255,255,255,0.35); }

/* 响应式 */
@media (max-width: 900px) {
  .grid-3, .cap-grid { grid-template-columns: 1fr 1fr; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .process-3 { grid-template-columns: 1fr; }
  .download-grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1, .page-hero h1 { font-size: 30px; }
}
@media (max-width: 720px) {
  .site-nav a:nth-child(5) { display: none; }
  .requirements-grid, .requirements-notes { grid-template-columns: 1fr; }
  .requirements-heading, .enterprise-install {
    flex-direction: column;
    align-items: flex-start;
  }
  .requirements-plan-desc { min-height: auto; }
}
@media (max-width: 600px) {
  .grid-3, .grid-2, .cap-grid, .process, .download-grid { grid-template-columns: 1fr; }
  .site-nav { gap: 12px; }
  .site-nav a:nth-child(3), .site-nav a:nth-child(5) { display: none; }
  .hero { padding: 56px 0 48px; }
  .hero h1, .page-hero h1 { font-size: 26px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .section { padding: 56px 0; }
  .card-wide { flex-direction: column; }
  .agent-install { padding: 22px 18px; }
  .requirements { padding: 22px 18px; }
  .requirements-plan, .enterprise-install { padding: 18px; }
  .enterprise-install .btn { width: 100%; }
  .agent-prompt { max-height: 220px; font-size: 12px; }
  .compare { font-size: 13px; }
}