/* ===== Landing Page ===== */
.landing-page {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 28px;
  isolation: isolate;
}

.landing-site-shell {
  width: min(1320px, calc(100vw - 48px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.site-header {
  position: sticky;
  top: 18px;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 24px;
}

.site-header-brand {
  display: flex;
  align-items: center;
  gap: 28px;
  min-width: 0;
}

.site-brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}

.site-brand-button {
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.site-brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(103,80,164,.2), rgba(16,185,129,.18));
  color: var(--accent);
  font-size: 20px;
}

.site-brand-name {
  display: block;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -.02em;
}

.site-brand-lockup p {
  color: var(--text-secondary);
  margin-top: 2px;
}

.site-header-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

.site-nav-link:hover,
.site-nav-link.is-active {
  color: var(--accent);
  background: var(--accent-bg);
  transform: translateY(-1px);
}

.site-header-actions,
.landing-hero-actions,
.landing-cta-actions,
.landing-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 主内容区（单栏全宽） ===== */
.landing-main-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ===== 首页 Hero ===== */
.landing-hero-section {
  padding: 56px 40px 48px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(103,80,164,.16), rgba(16,185,129,.08)), var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(160%);
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 780px;
}

.landing-hero-section h1 {
  font-size: clamp(28px, 3.8vw, 48px);
  line-height: 1.1;
  letter-spacing: -.035em;
}

.landing-hero-lead {
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 56ch;
}

.landing-hero-actions {
  margin-top: 8px;
}

/* ===== 价值三卡区 ===== */
.landing-value-section {
  /* 直接复用 grid-3 + landing-card-grid */
}

/* ===== CTA 区 ===== */
.landing-cta-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 32px 36px;
  background: linear-gradient(135deg, rgba(103,80,164,.14), rgba(16,185,129,.08));
}

.landing-cta-section h3 {
  font-size: clamp(20px, 2.4vw, 30px);
  line-height: 1.2;
  letter-spacing: -.025em;
  max-width: 40ch;
}

/* ===== 旧 Hero（二级页仍用） ===== */
.landing-page-hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  padding: 28px;
  padding-block: 24px;
  background: linear-gradient(135deg, rgba(103,80,164,.16), rgba(16,185,129,.08)), var(--glass);
}

.landing-page-hero h1 {
  margin-top: 12px;
  font-size: clamp(30px, 4.2vw, 50px);
  line-height: 1.08;
  letter-spacing: -.035em;
  max-width: 15ch;
}



.landing-aurora {
  position: fixed;
  inset: auto;
  width: 32vw;
  height: 32vw;
  min-width: 260px;
  min-height: 260px;
  border-radius: 999px;
  pointer-events: none;
  filter: blur(28px);
  opacity: .28;
  z-index: -1;
}

.landing-aurora-one {
  top: 120px;
  right: 6%;
  background: radial-gradient(circle, rgba(103,80,164,.45), transparent 68%);
}

.landing-aurora-two {
  top: 38%;
  left: 0;
  background: radial-gradient(circle, rgba(16,185,129,.28), transparent 68%);
}

.glass-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.03) 55%, transparent 100%), var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px) saturate(160%);
}

.section-eyebrow,
.landing-hero-tag,
.landing-plan-tier,
.landing-card-index,
.landing-proof-type {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 32px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--accent-bg);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: .02em;
}

.btn-lg {
  min-height: 52px;
  padding-inline: 22px;
}

.btn-text {
  border: none;
  background: transparent;
  color: var(--accent);
  padding-inline: 0;
  box-shadow: none;
}

.btn-text:hover {
  color: var(--accent-light);
  background: transparent;
}

.magnetic-card,
.magnetic-btn {
  transform: translate3d(var(--mx, 0), var(--my, 0), 0);
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1), border-color var(--transition), box-shadow var(--transition), background var(--transition);
  will-change: transform;
}

.magnetic-card:hover,
.magnetic-btn:hover {
  border-color: rgba(103,80,164,.28);
  box-shadow: 0 18px 40px rgba(18, 24, 38, .14);
}

.landing-page-hero,
.landing-side-nav,
.landing-page-content,
.landing-demo-panel,
.landing-demo-form,
.landing-feature-card,
.landing-scenario-card,
.landing-tag-card,
.landing-plan-card,
.landing-testimonial-card,
.landing-faq-item,
.landing-footer,
.landing-resource-card,
.landing-stack-card,
.landing-home-spotlight,
.landing-inline-cta,
.landing-governance-copy,
.landing-screen-stage {
  padding: 28px;
}

.landing-page-hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  padding-block: 24px;
  background: linear-gradient(135deg, rgba(103,80,164,.16), rgba(16,185,129,.08)), var(--glass);
}


.landing-page-hero h1 {
  margin-top: 12px;
  font-size: clamp(30px, 4.2vw, 50px);
  line-height: 1.08;
  letter-spacing: -.035em;
  max-width: 15ch;
}


.landing-page-hero p,
.section-heading p,
.landing-feature-card p,
.landing-scenario-card p,
.landing-testimonial-card p,
.landing-resource-card p,
.landing-governance-copy p,
.landing-faq-answer p,
.landing-footer p,
.landing-stack-card p,
.landing-plan-card p {
  color: var(--text-secondary);
  line-height: 1.8;
}



.landing-subpage-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.section-heading.compact {
  max-width: 760px;
}

.section-heading h3,
.landing-inline-cta h3,
.landing-home-spotlight h3,
.landing-governance-copy h4,
.landing-screen-copy h4,
.landing-demo-panel h4 {
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.12;
  letter-spacing: -.03em;
}

.landing-home-hero-grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 20px;
}

.landing-home-spotlight {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: linear-gradient(155deg, rgba(103,80,164,.2), rgba(16,185,129,.12) 60%, rgba(255,255,255,.04));
  border-color: rgba(103,80,164,.22);
}

.landing-home-kpi-grid {
  display: grid;
  gap: 16px;
}

.landing-stat-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,.1), rgba(255,255,255,.02)), var(--bg-elevated);
  border: 1px solid var(--border-soft);
}

.landing-stat-card.accent,
.landing-plan-card.featured {
  background: linear-gradient(135deg, rgba(103,80,164,.22), rgba(16,185,129,.14)), var(--bg-elevated);
  border-color: rgba(103,80,164,.24);
}

.landing-stat-kicker {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-muted);
}

.landing-stat-value {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -.03em;
}

.landing-stat-label {
  font-size: 15px;
  font-weight: 700;
}

.landing-card-grid {
  align-items: stretch;
}

.landing-feature-card,
.landing-scenario-card,
.landing-plan-card,
.landing-tag-card,
.landing-testimonial-card,
.landing-faq-item,
.landing-stack-card,
.landing-resource-card,
.landing-screen-card {
  height: 100%;
}

.landing-feature-card,
.landing-scenario-card,
.landing-stack-card,
.landing-resource-card,
.landing-plan-card,
.landing-screen-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.landing-feature-card h4,
.landing-scenario-card h4,
.landing-plan-card h4,
.landing-stack-card h4,
.landing-resource-card h4,
.landing-screen-card h4 {
  font-size: 22px;
}

.landing-screen-stage {
  gap: 18px;
}

.landing-page-intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  background: linear-gradient(145deg, rgba(103,80,164,.14), rgba(16,185,129,.08));
}

.landing-page-intro-copy {
  max-width: 720px;
}

.landing-page-intro-copy h3 {
  margin-top: 14px;
  font-size: clamp(30px, 3.2vw, 44px);
  line-height: 1.1;
  letter-spacing: -.03em;
}

.landing-page-intro-copy p {
  margin-top: 12px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.landing-intro-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  min-width: min(420px, 100%);
}

.landing-mini-metric {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border-soft);
}

.landing-mini-metric strong {
  font-size: 24px;
  letter-spacing: -.03em;
}

.landing-mini-metric span {
  color: var(--text-secondary);
  line-height: 1.7;
}

.landing-bullet-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-left: 18px;
  color: var(--text-secondary);
  line-height: 1.75;
}

.landing-deep-grid {
  align-items: stretch;
}

.landing-deep-card,
.landing-role-card,
.landing-industry-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px;
  height: 100%;
}

.landing-deep-card-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.landing-deep-card p,
.landing-role-card p,
.landing-industry-card p,
.landing-product-governance-copy p,
.landing-governance-item span {
  color: var(--text-secondary);
  line-height: 1.8;
}

.landing-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.landing-chip-row span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border-soft);
  color: var(--text-secondary);
  font-weight: 600;
}

.landing-product-governance {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 22px;
  align-items: stretch;
}

.landing-product-governance-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.landing-governance-checklist {
  display: grid;
  gap: 14px;
}

.landing-governance-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border-radius: 22px;
  border: 1px solid var(--border-soft);
  background: rgba(255,255,255,.04);
}

.landing-governance-item strong {
  font-size: 18px;
}

.landing-screen-highlight {

  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 20px;
  align-items: center;
  padding: 24px;
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(103,80,164,.12), rgba(16,185,129,.08));
  border: 1px solid rgba(103,80,164,.18);
}

.landing-screen-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.landing-screen-pills,
.landing-demo-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.landing-screen-pills span,
.landing-demo-points span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border-soft);
  color: var(--text-secondary);
  font-weight: 600;
}

.landing-demo-points i {
  color: var(--accent);
}

.landing-screen-grid {
  align-items: stretch;
}

.landing-screen-card,
.landing-demo-panel,
.landing-demo-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.landing-screen-card {
  padding: 24px;
}

.landing-screen-frame {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(9, 12, 20, .75);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 16px 36px rgba(4, 9, 20, .22);
}

.landing-screen-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.06), transparent 24%);
  pointer-events: none;
  z-index: 1;
}

.landing-screen-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dashboard-frame {
  min-height: 340px;
}

.dashboard-frame.secondary,
.city-frame {
  min-height: 260px;
}

.landing-inline-cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: linear-gradient(135deg, rgba(103,80,164,.14), rgba(16,185,129,.08));
}

.landing-testimonial-card {
  justify-content: space-between;
}

.landing-testimonial-card strong {
  display: block;
  margin-bottom: 6px;
}

.landing-testimonial-card span {
  color: var(--text-muted);
  font-size: 14px;
}

.landing-faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.landing-faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.landing-faq-question span {
  font-size: 18px;
  font-weight: 700;
}

.landing-faq-question i {
  transition: transform 220ms ease;
}

.landing-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 260ms ease;
}

.landing-faq-item.is-open .landing-faq-answer {
  max-height: 220px;
  margin-top: 14px;
}

.landing-faq-item.is-open .landing-faq-question i {
  transform: rotate(45deg);
}

.landing-plan-card {
  overflow: hidden;
}

.landing-plan-ribbon {
  position: absolute;
  top: 18px;
  right: -40px;
  min-width: 160px;
  padding: 8px 0;
  text-align: center;
  background: rgba(255,255,255,.16);
  color: var(--accent);
  font-weight: 700;
  transform: rotate(32deg);
  border: 1px solid rgba(255,255,255,.18);
}

.landing-plan-card ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-left: 18px;
}

.landing-plan-card .btn {
  margin-top: auto;
}

.landing-demo-layout {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 20px;
}

.landing-demo-contact {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--border-soft);
}

.landing-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.landing-form-grid label {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-weight: 600;
  color: var(--text-secondary);
}

.landing-form-grid label span {
  font-size: 14px;
}

.landing-form-grid input,
.landing-form-grid select,
.landing-form-grid textarea {
  width: 100%;
  border: 1px solid var(--border-soft);
  border-radius: 18px;
  padding: 14px 16px;
  background: rgba(255,255,255,.05);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.landing-form-grid input:focus,
.landing-form-grid select:focus,
.landing-form-grid textarea:focus {
  border-color: rgba(103,80,164,.34);
  box-shadow: 0 0 0 4px rgba(103,80,164,.12);
  background: rgba(255,255,255,.08);
}

.landing-form-grid textarea {
  resize: vertical;
  min-height: 120px;
}

.landing-form-full {
  grid-column: 1 / -1;
}

.landing-demo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.landing-demo-feedback {
  min-height: 24px;
  color: var(--text-muted);
  line-height: 1.7;
  transition: color 0.25s ease, opacity 0.25s ease;
}

.landing-demo-feedback.is-loading {
  color: var(--accent-primary);
}

.landing-demo-feedback.is-success {
  color: var(--success, #17b26a);
  font-weight: 600;
}

.landing-demo-feedback.is-error {
  color: var(--danger, #ff5f7a);
  font-weight: 600;
}

.landing-demo-form button[disabled] {
  opacity: 0.72;
  cursor: wait;
  transform: none;
}

.landing-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.landing-footer-brand {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
  font-weight: 800;
}

@media (max-width: 1280px) {
  .landing-site-shell {
    width: min(100%, calc(100vw - 32px));
  }

  .site-header,
  .landing-cta-section {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-header-brand,
  .site-header-actions {
    justify-content: space-between;
  }
}

@media (max-width: 1100px) {
  .landing-screen-highlight,
  .landing-demo-layout,
  .landing-form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .landing-site-shell {
    width: min(100%, calc(100vw - 20px));
    padding-top: 12px;
  }

  .landing-hero-section {
    padding: 36px 24px 32px;
  }

  .site-header,
  .landing-page-hero,
  .landing-demo-panel,
  .landing-demo-form,
  .landing-feature-card,
  .landing-scenario-card,
  .landing-tag-card,
  .landing-plan-card,
  .landing-testimonial-card,
  .landing-faq-item,
  .landing-footer,
  .landing-resource-card,
  .landing-stack-card,
  .landing-governance-copy,
  .landing-screen-stage {
    padding: 20px;
    border-radius: 24px;
  }

  .site-header-brand,
  .site-header-actions,
  .landing-page-switcher,
  .landing-page-hero-actions,
  .landing-cta-actions,
  .landing-footer-links {
    width: 100%;
  }

  .site-header-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .landing-page-hero h1,
  .section-heading h3,
  .landing-inline-cta h3,
  .landing-home-spotlight h3,
  .landing-governance-copy h4,
  .landing-screen-copy h4,
  .landing-demo-panel h4 {
    max-width: none;
    font-size: 28px;
  }
}