:root {
  /* Claude Design System - Warm Canvas */
  --primary: #cc785c;
  --primary-active: #a9583e;
  --primary-disabled: #e6dfd8;
  --ink: #141413;
  --body: #3d3d3a;
  --body-strong: #252523;
  --muted: #6c6a64;
  --muted-soft: #8e8b82;
  --hairline: #e6dfd8;
  --hairline-soft: #ebe6df;
  --canvas: #faf9f5;
  --surface-soft: #f5f0e8;
  --surface-card: #efe9de;
  --surface-cream-strong: #e8e0d2;
  --surface-dark: #181715;
  --surface-dark-elevated: #252320;
  --surface-dark-soft: #1f1e1b;
  --on-primary: #ffffff;
  --on-dark: #faf9f5;
  --on-dark-soft: #a09d96;
  --accent-teal: #5db8a6;
  --accent-amber: #e8a55a;
  --success: #5db872;
  --warning: #d4a017;
  --error: #c64545;

  /* Legacy aliases for compatibility */
  --bg: var(--canvas);
  --surface: var(--surface-card);
  --surface-strong: var(--surface-cream-strong);
  --accent: var(--primary);
  --accent-2: var(--accent-teal);
  --accent-3: var(--success);
  --line: var(--hairline);
  --shadow: 0 8px 24px rgba(20, 20, 19, 0.08);
  --shadow-soft: 0 4px 16px rgba(20, 20, 19, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--canvas);
  font-family: "Inter", "StyreneB", "IBM Plex Sans", "Noto Sans SC", sans-serif;
  line-height: 1.55;
}

/* 添加细微的纹理背景 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 20% 30%, rgba(204, 120, 92, 0.03) 0%, transparent 50%),
                    radial-gradient(circle at 80% 70%, rgba(93, 184, 166, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.15;
  font-family: "Tiempos Headline", "Copernicus", "Cormorant Garamond", "Noto Serif SC", serif;
  font-weight: 400;
}

p {
  margin: 0;
}

a {
  color: inherit;
}

.container {
  width: min(1160px, 92vw);
  margin: 0 auto;
}

.page-glow,
.aurora {
  position: fixed;
  inset: -16rem;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 20%, rgba(29, 78, 216, 0.1), transparent 35%),
    radial-gradient(circle at 82% 22%, rgba(15, 118, 110, 0.1), transparent 36%),
    radial-gradient(circle at 56% 82%, rgba(34, 197, 94, 0.08), transparent 40%);
}

@keyframes float-bg {
  from {
    transform: translateY(-1rem) scale(1);
  }

  to {
    transform: translateY(1rem) scale(1.04);
  }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-shell {
  animation: fade-in-up 0.8s ease-out;
}

.hero-shell h1 {
  animation: fade-in-up 0.8s ease-out 0.1s backwards;
}

.hero-shell .hero-subtitle {
  animation: fade-in-up 0.8s ease-out 0.2s backwards;
}

.hero-shell .hero-actions {
  animation: fade-in-up 0.8s ease-out 0.3s backwards;
}

.hero-shell .hero-notes {
  animation: fade-in-up 0.8s ease-out 0.4s backwards;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 0.75rem 0 0;
  background: var(--canvas);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.875rem 1.25rem;
  border: 1px solid var(--hairline);
  border-radius: 0.5rem;
  background: rgba(250, 249, 245, 0.9);
  backdrop-filter: blur(12px);
}

.logo {
  font-family: "Tiempos Headline", "Copernicus", "Cormorant Garamond", serif;
  font-size: 1rem;
  font-weight: 400;
  text-decoration: none;
  letter-spacing: -0.3px;
}

.site-header .logo {
  display: inline-flex;
  align-items: center;
}

.site-header .site-logo {
  height: 28px;
  width: auto;
  display: block;
}

.nav-menu {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  gap: 0.25rem;
}

.nav-link {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 0.875rem;
  border-radius: 0.5rem;
  font-family: "Inter", "StyreneB", sans-serif;
}

.nav-link:hover {
  color: var(--primary);
  background: var(--surface-card);
}

.home-main {
  padding-top: 1.5rem;
}

.home-hero {
  padding: 5rem 0 3.5rem;
}

.hero-shell {
  text-align: center;
}

.hero-shell h1 {
  margin: 0 auto;
  max-width: 16ch;
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  letter-spacing: -0.5px;
}

.hero-subtitle {
  margin: 1rem auto 0;
  max-width: 68ch;
  color: var(--body);
  font-size: 1rem;
}

.hero-shell .hero-actions {
  justify-content: center;
  margin-top: 1.5rem;
}

.section-soft {
  background: var(--surface-soft);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.section-narrow {
  max-width: 1020px;
}

.vision-grid,
.feature-grid,
.product-quick-grid {
  display: grid;
  gap: 1rem;
}

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

.plain-card,
.feature-card,
.quick-card,
.stat-item,
.activity-band,
.proof-item,
.resource-card,
.contact-card,
.download-card,
.product-card,
.scenario-card,
.pricing-card {
  border: 1px solid var(--hairline);
  background: var(--surface-card);
  border-radius: 0.75rem;
  box-shadow: none;
}

.plain-card,
.feature-card,
.quick-card,
.stat-item,
.activity-band {
  padding: 1.2rem;
}

.feature-card h3,
.plain-card h3,
.quick-card h3 {
  font-size: 1.18rem;
}

.plain-card p,
.feature-card p,
.quick-card p {
  margin-top: 0.45rem;
  color: var(--muted);
}

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

.quick-card {
  text-decoration: none;
}

.quick-card:hover {
  border-color: var(--primary);
}

.activity-band {
  text-align: center;
}

.activity-band h2 {
  font-size: clamp(1.55rem, 3vw, 2.2rem);
}

.activity-band p {
  margin-top: 0.5rem;
  color: var(--body);
}

.stat-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.stat-item strong {
  font-size: 1.06rem;
  font-family: "Bricolage Grotesque", sans-serif;
}

.stat-item span {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
}

.hero {
  padding: 5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 2rem;
  align-items: stretch;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 14ch;
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.5px;
}

.lead {
  margin-top: 1.25rem;
  max-width: 60ch;
  color: var(--body);
  font-size: 1rem;
}

.lead.compact {
  max-width: 54ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.8rem;
}

.hero-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.1rem;
}

.hero-notes span,
.mini-tags span,
.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  padding: 0.375rem 0.875rem;
  color: var(--ink);
  font-size: 0.8125rem;
  font-weight: 500;
}

.hero-panel,
.product-card,
.scenario-card,
.pricing-card,
.download-card,
.resource-card,
.contact-card,
.cta-panel,
.workflow-shell {
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-card);
  box-shadow: none;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 2rem;
}

.hero-panel h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  letter-spacing: -0.3px;
}

.hero-stack {
  display: grid;
  gap: 0.85rem;
}

.product-mini {
  border-radius: 0.75rem;
  padding: 1.25rem;
  background: var(--canvas);
  border: 1px solid var(--hairline);
}

.product-mini-alt {
  background: var(--surface-soft);
}

.product-mini h3 {
  margin-top: 0.7rem;
  font-size: 1.22rem;
}

.product-mini p {
  margin-top: 0.5rem;
  color: var(--muted);
}

.mini-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.proof-strip {
  margin-top: 0.2rem;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.proof-item {
  padding: 1.125rem;
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-card);
}

.proof-item strong {
  display: block;
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 1.2rem;
}

.proof-item span {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  padding: 2.2rem 0;
}

.page-shell {
  padding-top: 3.2rem;
  padding-bottom: 1.4rem;
}

.page-hero h1 {
  max-width: 18ch;
  font-size: clamp(2rem, 4.2vw, 3.9rem);
}

.page-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.info-card {
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-card);
  padding: 1rem;
}

.info-card p {
  margin-top: 0.45rem;
  color: var(--muted);
}

.doc-grid,
.blog-grid,
.contact-grid {
  display: grid;
  gap: 1rem;
}

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

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

.doc-card,
.blog-card,
.contact-panel {
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-card);
  padding: 2rem;
}

.doc-card h3,
.blog-card h3,
.contact-panel h3 {
  font-size: 1.2rem;
}

.doc-card p,
.blog-card p,
.contact-panel p {
  margin-top: 0.45rem;
  color: var(--muted);
}

.doc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

.doc-links-stack {
  flex-direction: column;
  align-items: stretch;
}

.dual-download-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}

.dual-download-row .btn,
.doc-links-stack > .btn {
  width: 100%;
}

.blog-card {
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.blog-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.preview-image {
  display: block;
  width: 100%;
  margin-top: 1rem;
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-dark);
}

.inline-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.timeline {
  display: grid;
  gap: 0.8rem;
}

.timeline-item {
  border-left: 3px solid var(--primary);
  padding-left: 0.8rem;
}

.timeline-item small {
  color: var(--muted);
  font-weight: 500;
}

.template-box {
  margin-top: 0.8rem;
  border: 1px dashed var(--primary);
  border-radius: 0.5rem;
  padding: 0.75rem;
  background: var(--surface-soft);
  color: var(--ink);
  font-size: 0.9375rem;
  white-space: pre-line;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.metric-card {
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 0.9rem;
  background: rgba(255, 255, 255, 0.74);
}

.metric-card strong {
  display: block;
  font-family: "Bricolage Grotesque", sans-serif;
}

.section-head {
  margin-bottom: 1.25rem;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  letter-spacing: -0.5px;
}

.section-head p {
  margin: 0.75rem auto 0;
  color: var(--body);
  max-width: 68ch;
}

.product-grid,
.scenario-grid,
.pricing-grid,
.download-grid,
.resource-grid {
  display: grid;
  gap: 1rem;
}

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

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

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

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

.product-card,
.scenario-card,
.pricing-card,
.download-card,
.resource-card,
.contact-card {
  padding: 2rem;
}

.product-top h3,
.product-top h2,
.scenario-card h3,
.pricing-card h3,
.pricing-card h2,
.download-card h3,
.resource-card h3,
.contact-card h3 {
  margin-top: 0.75rem;
  font-size: 1.375rem;
  letter-spacing: -0.3px;
}

.product-summary,
.scenario-card p,
.pricing-card p,
.download-card p,
.resource-card p,
.contact-card p {
  margin-top: 0.75rem;
  color: var(--body);
}

.product-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.product-card:hover::before {
  opacity: 0.5;
}

.product-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--surface-soft), var(--surface-card));
  border-radius: 0.75rem;
  opacity: 0;
  transition: opacity 300ms ease;
  pointer-events: none;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.95rem;
}

.feature-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  margin-top: 0.62rem;
  padding-left: 1rem;
  color: #334138;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62rem;
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 999px;
  background: var(--primary);
}

.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.1rem;
}

.scenario-card {
  min-height: 100%;
  background: var(--surface-card);
}

.scenario-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: var(--surface-cream-strong);
  color: var(--ink);
  font-family: "Tiempos Headline", "Copernicus", "Cormorant Garamond", serif;
  font-weight: 400;
}

.workflow-band {
  padding-top: 0.4rem;
}

.workflow-shell {
  padding: 1.2rem;
  background: linear-gradient(145deg, rgba(255, 250, 242, 0.96), rgba(242, 247, 250, 0.92));
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.workflow-steps li {
  padding: 1rem;
  border-radius: 1rem;
  border: 1px dashed rgba(242, 176, 53, 0.8);
  background: rgba(255, 255, 255, 0.72);
}

.workflow-steps span {
  display: inline-flex;
  margin-bottom: 0.7rem;
  color: var(--accent);
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight: 700;
}

.workflow-steps h3 {
  font-size: 1.15rem;
}

.workflow-steps p {
  margin-top: 0.45rem;
  color: var(--muted);
}

.pricing-card-highlight {
  background: var(--surface-dark);
  color: var(--on-dark);
  border-color: var(--primary);
}

.pricing-card-highlight h2,
.pricing-card-highlight h3,
.pricing-card-highlight p {
  color: var(--on-dark);
}

.enterprise-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(290px, 0.85fr);
  gap: 1rem;
  align-items: stretch;
}

.enterprise-copy {
  padding: 0.2rem 0;
}

.contact-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-meta {
  display: grid;
  gap: 0.25rem;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.resource-card {
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.resource-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.cta-panel {
  padding: 4rem 2rem;
  background: var(--primary);
  color: var(--on-primary);
  text-align: center;
  border-radius: 0.75rem;
}

.cta-panel p {
  margin-top: 0.75rem;
  color: var(--on-primary);
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
}

.site-footer {
  padding: 4rem 0 2rem;
  background: var(--surface-dark);
  color: var(--on-dark-soft);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--surface-dark-elevated);
}

.footer-copy {
  margin-top: 0.75rem;
  color: var(--on-dark-soft);
  max-width: 36ch;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem 1.25rem;
  align-content: flex-start;
}

.footer-links a {
  color: var(--on-dark-soft);
  text-decoration: none;
  font-weight: 500;
}

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

.footer-qr h4 {
  margin: 0 0 0.75rem 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-dark-soft);
}

.qr-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 0.5rem;
  border: 1px solid var(--surface-dark-elevated);
  background: var(--surface-dark-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-soft);
  font-size: 0.75rem;
}

.qr-placeholder::before {
  content: "二维码";
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  margin-top: 2rem;
  color: var(--on-dark-soft);
  font-size: 0.875rem;
  border-top: 1px solid var(--surface-dark-elevated);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  font-family: "Inter", "StyreneB", sans-serif;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

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

.btn-primary {
  color: var(--on-primary);
  background: var(--primary);
  box-shadow: 0 4px 12px rgba(204, 120, 92, 0.25);
}

.btn-primary:hover {
  background: var(--primary-active);
}

.btn-secondary {
  color: var(--ink);
  border-color: var(--hairline);
  background: var(--canvas);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-white {
  color: var(--primary);
  background: var(--on-primary);
}

.btn-white:hover {
  background: var(--canvas);
}

.btn-dark {
  color: var(--on-dark);
  background: var(--surface-dark-elevated);
  border: 1px solid var(--surface-dark-elevated);
}

.btn-dark:hover {
  background: var(--surface-dark);
  color: var(--on-dark);
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  background: var(--surface-cream-strong);
  color: var(--ink);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.chip-primary {
  background: var(--primary);
  color: var(--on-primary);
}

.chip-dark {
  background: var(--surface-dark-elevated);
  color: var(--on-dark);
}

.download-shell {
  width: min(900px, 92vw);
  margin: 3rem auto;
  padding: 2rem;
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-card);
  box-shadow: none;
}

.download-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.download-head p {
  margin-top: 0.5rem;
  color: var(--muted);
}

.download-meta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.7rem;
}

.download-meta-links a {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
}

.download-list {
  display: grid;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.download-item {
  border: 1px solid var(--hairline);
  border-radius: 0.625rem;
  padding: 1.125rem;
  background: var(--canvas);
}

.download-item small {
  display: block;
  margin-top: 0.5rem;
  color: var(--muted);
}

.download-action {
  margin-top: 0.8rem;
}

.download-version-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.download-version-card {
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-card);
  padding: 1.5rem;
}

.download-version-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
}

.download-version-head h3 {
  font-size: 1.2rem;
}

.download-version-card p {
  margin-top: 0.75rem;
  color: var(--muted);
}

@media (max-width: 1060px) {
  .hero-grid,
  .enterprise-shell,
  .page-grid,
  .doc-grid,
  .blog-grid,
  .contact-grid,
  .product-grid,
  .scenario-grid,
  .pricing-grid,
  .download-grid,
  .resource-grid,
  .workflow-steps,
  .metric-grid,
  .info-grid,
  .proof-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .download-version-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .site-header {
    position: static;
  }

  .nav-wrap,
  .footer-grid,
  .footer-bottom,
  .download-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-menu {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 0.35rem;
  }

  .footer-qr {
    margin-top: 1.5rem;
  }

  .hero {
    padding-top: 2.8rem;
  }

  .home-hero {
    padding-top: 2.8rem;
  }

  .page-shell {
    padding-top: 2.4rem;
  }

  .hero-grid,
  .enterprise-shell,
  .page-grid,
  .doc-grid,
  .blog-grid,
  .contact-grid,
  .product-grid,
  .scenario-grid,
  .pricing-grid,
  .download-grid,
  .resource-grid,
  .workflow-steps,
  .metric-grid,
  .info-grid,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .download-version-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(94vw, 1160px);
  }

  .btn,
  .nav-cta,
  .hero-actions .btn,
  .product-actions .btn {
    width: 100%;
  }

  .hero-actions,
  .product-actions {
    gap: 0.6rem;
  }

  .hero-notes,
  .mini-tags,
  .pill-row,
  .footer-links {
    gap: 0.5rem;
  }

  .vision-grid,
  .feature-grid,
  .product-quick-grid,
  .stat-grid {
    grid-template-columns: 1fr;
  }
}

/* Hero Showcase - 产品展示区域 */
.hero-showcase {
  padding: 4rem 0;
}

.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 5rem;
}

.showcase-row:last-child {
  margin-bottom: 0;
}

.showcase-row.reverse {
  direction: rtl;
}

.showcase-row.reverse > * {
  direction: ltr;
}

.showcase-text {
  padding: 1rem 0;
}

.showcase-text .chip {
  margin-bottom: 1rem;
}

.showcase-text h3 {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.3px;
}

.showcase-text p {
  color: var(--body);
  font-size: 1.125rem;
  line-height: 1.7;
  max-width: 40ch;
}

.showcase-text .showcase-cta {
  margin-top: 2rem;
}

.showcase-visual {
  aspect-ratio: 16 / 10;
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--surface-soft);
  position: relative;
}

.showcase-visual.easycoder-placeholder {
  background: linear-gradient(145deg, var(--surface-soft), var(--surface-card));
}

.showcase-visual.cogniradar-placeholder {
  background: linear-gradient(145deg, var(--surface-soft), var(--surface-card));
}

/* 轮播容器 */
.showcase-slides {
  width: 100%;
  height: 100%;
  position: relative;
}

.showcase-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.showcase-slide.active {
  opacity: 1;
}

.showcase-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* 轮播指示点 */
.showcase-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 2;
}

.showcase-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}

.showcase-dot:hover {
  background: rgba(255, 255, 255, 0.8);
}

.showcase-dot.active {
  background: var(--primary);
  width: 1.25rem;
}

/* 响应式 */
@media (max-width: 860px) {

  .showcase-row {
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
  }

  .showcase-row.reverse {
    direction: ltr;
  }

  .showcase-text p {
    max-width: 100%;
  }

  .showcase-dots {
    bottom: 0.75rem;
  }

  .showcase-dot {
    width: 0.375rem;
    height: 0.375rem;
  }

  .showcase-dot.active {
    width: 0.875rem;
  }
}

/* 关于部分 */
.about-grid {
  display: flex;
  justify-content: center;
}

.about-card {
  max-width: 68ch;
  padding: 2.5rem;
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-card);
}

.about-card p {
  color: var(--body);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.about-card p:last-child {
  margin-bottom: 0;
}

.about-card strong {
  color: var(--ink);
  font-weight: 500;
}

/* 产品介绍 + 演示视频区域 */
.intro-demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.intro-text h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 1rem;
  letter-spacing: -0.3px;
}

.intro-text p {
  color: var(--body);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.demo-visual {
  aspect-ratio: 16 / 10;
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--surface-soft);
  position: relative;
}

/* 快速安装 */
.install-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

.install-column {
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-card);
  padding: 1.25rem;
}

.install-column-head {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--hairline);
}

.install-platform {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  background: var(--surface-soft);
  font-size: 0.8125rem;
  color: var(--muted);
  margin-bottom: 0.625rem;
}

.install-column-head h3 {
  font-size: 1.25rem;
  margin-bottom: 0.4rem;
  letter-spacing: -0.2px;
}

.install-column-head p {
  color: var(--muted);
}

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

.install-option {
  display: flex;
  flex-direction: column;
}

.install-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.install-actions-stack {
  flex-direction: column;
  align-items: flex-start;
}

.install-sync-note {
  margin-top: 1rem;
  color: var(--muted);
  text-align: center;
}

.install-steps {
  display: grid;
  gap: 1rem;
}

.install-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.5rem;
  border: 1px solid var(--hairline);
  border-radius: 0.75rem;
  background: var(--surface-card);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  background: var(--primary);
  color: var(--on-primary);
  font-family: "Tiempos Headline", "Copernicus", "Cormorant Garamond", serif;
  font-weight: 400;
  font-size: 1.25rem;
}

.step-content h3,
.step-content h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.2px;
}

.step-content p {
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.install-download-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.install-download-links .inline-link {
  font-weight: 500;
}

.code-block {
  background: var(--surface-dark);
  padding: 0.875rem;
  border-radius: 0.5rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.875rem;
  color: var(--on-dark-soft);
  line-height: 1.6;
}

.code-block code {
  display: block;
}

@media (max-width: 1120px) {
  .install-columns-three {
    grid-template-columns: 1fr 1fr;
  }
}

/* 响应式 - 产品页面 */
@media (max-width: 860px) {
  .intro-demo-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .install-columns {
    grid-template-columns: 1fr;
  }

  .install-actions .btn {
    width: 100%;
  }

  .intro-demo-grid .demo-visual {
    order: -1;
  }

  .install-step {
    grid-template-columns: auto 1fr;
    gap: 1rem;
    padding: 1rem;
  }

  .step-number {
    width: 2rem;
    height: 2rem;
    font-size: 1rem;
  }

  .code-block {
    font-size: 0.8125rem;
    padding: 0.75rem;
  }
}

@media (max-width: 560px) {
  .install-step {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .step-number {
    margin: 0 auto;
  }

  .code-block code {
    text-align: left;
  }
}

/* FAQ */
.faq-list {
  max-width: 68ch;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--hairline);
  border-radius: 0.5rem;
  background: var(--surface-card);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  background: none;
  border: none;
  color: var(--ink);
  font-family: "Inter", "StyreneB", sans-serif;
  font-size: 1rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease;
}

.faq-question:hover {
  background: var(--surface-soft);
}

.faq-toggle {
  font-size: 1.5rem;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  padding: 0 1.25rem 1rem 1.25rem;
  color: var(--body);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}