/* ========================================
   瞬衍智能 — 企业科技风 2.0
   ======================================== */

:root {
  --bg-primary: #070b12;
  --bg-secondary: #0e1520;
  --bg-elevated: #131b28;
  --bg-card: #151d2c;
  --bg-glass: rgba(255, 255, 255, 0.035);
  --border: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(20, 184, 166, 0.28);
  --border-hover: rgba(45, 212, 191, 0.42);
  --accent: #14b8a6;
  --accent-dim: #0d9488;
  --accent-soft: rgba(20, 184, 166, 0.1);
  --cyan: #14b8a6;
  --cyan-dim: #0d9488;
  --purple: #6366f1;
  --purple-light: #818cf8;
  --gradient-main: linear-gradient(135deg, #0d9488 0%, #0369a1 100%);
  --gradient-text: linear-gradient(90deg, #2dd4bf 0%, #38bdf8 100%);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Noto Sans SC', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 8px 32px rgba(0, 0, 0, 0.22);
  --shadow-glow: 0 8px 28px rgba(0, 0, 0, 0.3);
  --shadow-glow-strong: 0 8px 28px rgba(13, 148, 136, 0.2);
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --site-header-height: 4.25rem;
  --site-header-gap: 12px;
  --site-header-line-cover: 12px;
  --site-header-offset: calc(var(--site-header-height) + var(--site-header-gap) - var(--site-header-line-cover));
}

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

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  scroll-padding-top: var(--site-header-offset);
}

@view-transition {
  navigation: none;
}

html.detail-page {
  scroll-behavior: auto;
}

html.hash-pending {
  visibility: hidden;
  background-color: var(--bg-primary);
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(ellipse 90% 55% at 50% -15%, rgba(20, 184, 166, 0.09), transparent 55%),
    radial-gradient(ellipse 50% 40% at 100% 20%, rgba(3, 105, 161, 0.06), transparent),
    radial-gradient(ellipse 40% 35% at 0% 80%, rgba(20, 184, 166, 0.04), transparent);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
}

#particle-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.85rem 0;
  min-height: 4.25rem;
  box-sizing: border-box;
  background: rgba(7, 11, 18, 0.72);
  backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition: none;
  view-transition-name: site-header;
}

.header.header--instant {
  transition: none !important;
}

.header.scrolled {
  padding: 0.85rem 0;
  min-height: 4.25rem;
  background: rgba(7, 11, 18, 0.92);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-img {
  display: block;
  height: 2.15rem;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-size: 1rem;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  border-radius: 8px;
}

.logo-text {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.03em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  position: relative;
}

.nav>a:not(.nav-cta) {
  transition: color 0.06s ease;
}

.nav>a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transition: width 0.08s ease;
}

.nav>a:not(.nav-cta):hover {
  color: var(--text-primary);
}

.nav>a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav>a:not(.nav-cta).nav-active {
  color: var(--text-primary);
}

.nav>a:not(.nav-cta).nav-active::after {
  width: 100%;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.15rem !important;
  line-height: 1;
  background: var(--gradient-main);
  color: #fff !important;
  border-radius: 999px;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  letter-spacing: 0.02em;
  white-space: nowrap;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  box-shadow: var(--shadow-glow-strong);
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  opacity: 0.92;
}

/* Nav dropdown — 解决方案 */
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-has-dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: -0.5rem;
  right: -0.5rem;
  height: 14px;
  z-index: 199;
}

.nav-has-dropdown>a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.06s ease;
  position: relative;
}

.nav-has-dropdown>a::after {
  content: '';
  flex-shrink: 0;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.45;
}

.nav-has-dropdown>a:hover::after,
.nav-has-dropdown>a.nav-active::after {
  opacity: 0.85;
}

.nav-has-dropdown:hover>a,
.nav-has-dropdown:focus-within>a,
.nav-has-dropdown>a.nav-active {
  color: var(--accent);
}

.nav-has-dropdown:hover>a::after,
.nav-has-dropdown:focus-within>a::after {
  transform: rotate(180deg);
  opacity: 0.85;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  min-width: 9.5rem;
  max-width: 16rem;
  padding: 0.35rem;
  background: rgba(14, 21, 32, 0.98);
  backdrop-filter: blur(20px) saturate(1.25);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card), 0 18px 48px rgba(0, 0, 0, 0.48);
  visibility: hidden;
  pointer-events: none;
  z-index: 200;
}

.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  margin-left: -4px;
  width: 8px;
  height: 8px;
  background: rgba(14, 21, 32, 0.98);
  border-left: 1px solid var(--border-accent);
  border-top: 1px solid var(--border-accent);
  transform: rotate(45deg);
}

.nav-has-dropdown:not(.is-dismissed):hover .nav-dropdown,
.nav-has-dropdown:not(.is-dismissed):focus-within .nav-dropdown {
  visibility: visible;
  pointer-events: auto;
}

.nav-dropdown a {
  display: block;
  padding: 0.48rem 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 500;
  white-space: nowrap;
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: none;
}

.nav-dropdown a::after {
  display: none !important;
}

.nav-dropdown a:hover {
  color: var(--text-primary);
  background: var(--accent-soft);
  border-left-color: var(--accent);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  border-radius: 999px;
  font-size: 0.925rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: inherit;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: var(--shadow-glow-strong);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(0, 150, 199, 0.22);
}

.btn.is-loading:hover,
.btn:disabled:hover {
  transform: none;
}

.btn-outline {
  background: transparent;
  color: var(--cyan);
  border: 1px solid var(--border-accent);
}

.btn-outline:hover {
  background: rgba(0, 180, 216, 0.08);
  border-color: var(--border-hover);
}

.btn-full {
  width: 100%;
}

.btn .btn-spinner {
  display: none;
  width: 1em;
  height: 1em;
  margin-right: 0.45rem;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  flex-shrink: 0;
  animation: btn-spin 0.65s linear infinite;
}

.btn.is-loading {
  cursor: wait;
}

.btn.is-loading .btn-spinner {
  display: inline-block;
}

.btn.is-success {
  background: linear-gradient(135deg, #059669 0%, #10b981 100%);
  box-shadow: 0 4px 18px rgba(16, 185, 129, 0.25);
}

.btn.is-error {
  background: linear-gradient(135deg, #b45309 0%, #d97706 100%);
  box-shadow: 0 4px 18px rgba(217, 119, 6, 0.2);
}

@keyframes btn-spin {
  to {
    transform: rotate(360deg);
  }
}

.contact-form.is-submitting .form-group input,
.contact-form.is-submitting .form-group textarea {
  opacity: 0.65;
  cursor: wait;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 7.5rem 0 4.5rem;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  translate: -50% 0;
  width: min(720px, 80%);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  padding: 0.35rem 0.85rem;
  margin-bottom: 1.25rem;
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  border-radius: 999px;
}

.hero-kicker::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.22;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero-lead {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-primary);
  max-width: 520px;
  line-height: 1.5;
  margin-bottom: 0.75rem;
}

.hero-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.65;
  margin-bottom: 1.75rem;
}

.gradient-text {
  background: var(--gradient-text);
  background-size: 100% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-unified {
  display: flex;
  align-items: flex-start;
  min-height: 100svh;
  min-height: 100dvh;
  padding: 11rem 0 1.5rem;
  box-sizing: border-box;
}

.hero-unified::after {
  display: none;
}

.hero-unified>.container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-unified .hero-grid {
  position: relative;
  z-index: 2;
  min-height: 0;
  gap: 1.75rem 2.5rem;
  align-items: center;
  grid-template-columns: 1.05fr 0.95fr;
  padding-bottom: 1.5rem;
}

.hero-unified .hero-grid>* {
  overflow: visible;
}

.hero-unified .hero-content {
  min-width: 0;
}

.hero-unified .hero-kicker {
  margin-bottom: 0.85rem;
  margin-top: 0.25rem;
  font-size: 0.75rem;
  padding: 0.32rem 0.75rem;
}

.hero-unified .hero-title {
  font-size: clamp(2rem, 4.2vw, 3rem);
  margin-bottom: 0.65rem;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.hero-unified .hero-lead {
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 1.35rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.hero-unified .hero-desc {
  display: none;
}

.hero-unified .hero-actions {
  margin-bottom: 0;
  flex-wrap: nowrap;
  gap: 0.75rem;
}

.hero-unified .hero-actions .btn {
  white-space: nowrap;
}

.hero-unified .hero-actions .btn-primary {
  padding: 0.875rem 1.6rem;
  font-size: 0.925rem;
  box-shadow: 0 8px 32px rgba(13, 148, 136, 0.35);
}

.hero-unified .hero-actions .btn-outline {
  padding: 0.875rem 1.35rem;
  font-size: 0.875rem;
}

.hero-unified .hero-visual {
  overflow: visible;
  height: clamp(240px, 32vh, 340px);
  max-width: min(100%, 380px);
  --orbit-r: 110px;
}

.hero-unified .hero-visual.is-bloom,
.hero-unified .hero-visual.has-selection {
  --orbit-r: 138px;
}

.hero-unified .hero-trust.hero-trust-panel {
  position: relative;
  z-index: 1;
  margin-top: 2.25rem;
  padding: 1.75rem 1.5rem 1.35rem;
  background:
    linear-gradient(180deg, rgba(20, 184, 166, 0.08) 0%, rgba(14, 21, 32, 0.92) 42%, rgba(21, 29, 44, 0.95) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), 0 0 48px rgba(20, 184, 166, 0.06);
  flex-shrink: 0;
}

.hero-unified .hero-trust-panel.hero-trust {
  border-top: none;
}

.hero-trust {
  position: relative;
}

.hero-trust::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 0%, rgba(20, 184, 166, 0.06), transparent 70%);
  pointer-events: none;
  border-radius: inherit;
}

.hero-unified .hero-trust-panel::before {
  opacity: 0.6;
}

.hero-unified .hero-trust .achievement-grid {
  position: relative;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
  margin-top: 0;
}

.hero-unified .hero-trust .achievement-card {
  padding: 1.15rem 0.65rem 0.95rem;
  background: rgba(7, 11, 18, 0.5);
  border-color: rgba(20, 184, 166, 0.22);
}

.hero-unified .hero-trust .achievement-card:hover {
  border-color: var(--border-hover);
  background: rgba(7, 11, 18, 0.65);
}

.hero-unified .hero-trust .achievement-num {
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
  text-shadow: 0 0 24px rgba(20, 184, 166, 0.25);
}

.hero-unified .hero-trust .achievement-unit {
  font-size: 1rem;
}

.hero-unified .hero-trust .achievement-card>p {
  font-size: 0.82rem;
  margin-top: 0.35rem;
  font-weight: 600;
}

.hero-unified .hero-trust .achievement-note {
  font-size: 0.68rem;
  margin-top: 0.25rem;
  line-height: 1.35;
  color: var(--text-muted);
}

.hero-unified .industry-stats-compact {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 0.55rem;
  max-width: none;
  margin: 0 auto;
  position: relative;
}

.hero-unified .industry-stats-compact .industry-stat {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.32rem 0.6rem;
  box-shadow: none;
}

.hero-unified .industry-stats-compact .industry-pct {
  display: inline;
  font-size: 0.78rem;
  margin: 0;
}

.hero-unified .industry-stats-compact .industry-stat span:last-child {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.hero-unified .orbit-item .float-card {
  z-index: 5;
}

.hero-unified .orbit-item .float-card.is-active,
.hero-unified .orbit-item .float-card.is-interacting {
  z-index: 20;
}

@media (hover: hover) {
  .hero-unified .float-card:hover {
    z-index: 15;
  }
}

.hero-unified .hero-trust-foot {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1rem;
  position: relative;
}

.hero-unified .hero-trust-foot .btn-outline {
  padding: 0.875rem 1.35rem;
  font-size: 0.875rem;
  white-space: nowrap;
}

.hero-unified .hero-trust-foot .industry-insight {
  display: none;
}

.btn-sm {
  padding: 0.45rem 0.95rem;
  font-size: 0.78rem;
}

@media (max-height: 820px) and (min-width: 1025px) {
  .hero-unified {
    padding: 6.75rem 0 1rem;
  }

  .hero-unified>.container {
    gap: 1rem;
  }

  .hero-unified .hero-title {
    font-size: clamp(1.75rem, 3.2vw, 2.35rem);
  }

  .hero-unified .hero-visual {
    height: 260px;
    --orbit-r: 100px;
  }

  .hero-unified .hero-trust-panel {
    padding: 1.35rem 1.15rem 1.1rem;
    margin-top: 1.75rem;
  }

  .hero-unified .hero-trust .achievement-card {
    padding: 0.85rem 0.45rem 0.75rem;
  }

  .hero-unified .hero-trust .achievement-num {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
  }
}

.hero-trust .achievement-grid {
  position: relative;
}

.hero-trust .industry-stats {
  position: relative;
}

.hero-trust-actions {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
  position: relative;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 1.35rem;
  min-width: 148px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.stat-item:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.stat-value {
  display: flex;
  align-items: baseline;
  gap: 0.1rem;
  line-height: 1;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.stat-suffix {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  width: 100%;
  max-width: 520px;
  height: 500px;
  margin: 0 auto;
  isolation: isolate;
  --mx: 0;
  --my: 0;
  --orbit-r: 158px;
  --ring-scale: 0.88;
  perspective: 900px;
}

.hero-visual.is-bloom,
.hero-visual.has-selection {
  --orbit-r: 198px;
  --ring-scale: 1;
}

.hero-visual-bg {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 55%),
    repeating-linear-gradient(0deg, transparent, transparent 18px, rgba(0, 212, 255, 0.03) 18px, rgba(0, 212, 255, 0.03) 19px),
    repeating-linear-gradient(90deg, transparent, transparent 18px, rgba(0, 212, 255, 0.03) 18px, rgba(0, 212, 255, 0.03) 19px);
  mask: radial-gradient(circle at center, #000 30%, transparent 72%);
  -webkit-mask: radial-gradient(circle at center, #000 30%, transparent 72%);
  pointer-events: none;
  transform: translate(calc(var(--mx) * -14px), calc(var(--my) * -14px));
  transition: transform 0.18s ease-out;
  animation: bg-breathe 6s ease-in-out infinite;
}

@keyframes bg-breathe {

  0%,
  100% {
    opacity: 0.85;
  }

  50% {
    opacity: 1;
  }
}

.orbit-spokes {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.spoke-lines,
.energy-pulses,
.orbit-path {
  opacity: 0;
  transition: opacity 0.45s ease 0.15s;
}

.hero-visual.is-bloom .spoke-lines,
.hero-visual.is-bloom .energy-pulses,
.hero-visual.is-bloom .orbit-path,
.hero-visual.has-selection .spoke-lines,
.hero-visual.has-selection .energy-pulses,
.hero-visual.has-selection .orbit-path {
  opacity: 1;
}

.spoke {
  stroke: url(#spokeGrad);
  stroke-width: 1;
  stroke-dasharray: 4 8;
  animation: spoke-flow 3s linear infinite;
  transition: stroke-width 0.3s ease, opacity 0.3s ease;
}

.spoke.is-active {
  stroke: #00d4ff;
  stroke-width: 2;
  stroke-dasharray: none;
  opacity: 1;
  filter: drop-shadow(0 0 6px rgba(0, 212, 255, 0.8));
  animation: spoke-pulse 1.2s ease-in-out infinite;
}

@keyframes spoke-pulse {

  0%,
  100% {
    opacity: 0.7;
  }

  50% {
    opacity: 1;
  }
}

.energy-dot {
  opacity: 0.85;
  filter: drop-shadow(0 0 4px #00d4ff);
}

.spoke:nth-child(1) {
  animation-delay: 0s;
}

.spoke:nth-child(2) {
  animation-delay: 0.4s;
}

.spoke:nth-child(3) {
  animation-delay: 0.8s;
}

.spoke:nth-child(4) {
  animation-delay: 1.2s;
}

.spoke:nth-child(5) {
  animation-delay: 1.6s;
}

.spoke:nth-child(6) {
  animation-delay: 2s;
}

.spoke:nth-child(7) {
  animation-delay: 2.4s;
}

.orbit-path {
  stroke: rgba(0, 212, 255, 0.06);
  stroke-width: 1;
  stroke-dasharray: 2 6;
  transform-origin: 250px 250px;
  animation: orbit-path-spin 40s linear infinite;
}

@keyframes orbit-path-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes spoke-flow {
  to {
    stroke-dashoffset: -24;
  }
}

.orbit-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(var(--ring-scale));
  border: 1px dashed rgba(0, 212, 255, 0.2);
  box-shadow: 0 0 24px rgba(0, 212, 255, 0.06), inset 0 0 24px rgba(0, 212, 255, 0.03);
  animation: ring-spin 24s linear infinite;
  opacity: 0.55;
  transition: opacity 0.4s ease, filter 0.4s ease;
}

.hero-visual:not(.is-bloom):not(.has-selection) .orbit-ring {
  opacity: 0.78;
  border-color: rgba(0, 212, 255, 0.38);
  box-shadow:
    0 0 40px rgba(0, 212, 255, 0.14),
    inset 0 0 32px rgba(0, 212, 255, 0.05);
  animation: ring-spin 24s linear infinite, ring-idle-glow 5s ease-in-out infinite;
}

.hero-visual:not(.is-bloom):not(.has-selection) .ring-2 {
  border-color: rgba(124, 58, 237, 0.38);
  box-shadow: 0 0 34px rgba(124, 58, 237, 0.14);
  animation: ring-spin-rev 16s linear infinite, ring-idle-glow 5s ease-in-out infinite 1.2s;
}

.hero-visual.is-bloom .orbit-ring,
.hero-visual.has-selection .orbit-ring {
  opacity: 0.75;
  animation: ring-spin 24s linear infinite;
}

.hero-visual.is-bloom .ring-2,
.hero-visual.has-selection .ring-2 {
  animation: ring-spin-rev 16s linear infinite;
}

.ring-1 {
  width: 396px;
  height: 396px;
}

.ring-2 {
  width: 245px;
  height: 245px;
  border-color: rgba(124, 58, 237, 0.25);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.08);
}

.hero-visual.is-bloom .ring-2,
.hero-visual.has-selection .ring-2 {
  opacity: 0.65;
}

.hero-visual:not(.is-bloom):not(.has-selection) .ring-dot,
.hero-visual:not(.is-bloom):not(.has-selection) .ring-dot-sm {
  animation: ring-dot-idle 3s ease-in-out infinite;
}

.hero-visual:not(.is-bloom):not(.has-selection) .ring-dot-sm {
  animation-delay: 0.8s;
}

.ring-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--cyan), 0 0 20px rgba(0, 212, 255, 0.4);
  transform: rotate(var(--rd)) translateY(calc(-1 * var(--orbit-r)));
  transition: transform 0.55s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.ring-dot-sm {
  width: 4px;
  height: 4px;
  margin: -2px 0 0 -2px;
  transform: rotate(var(--rd)) translateY(calc(-1 * var(--orbit-r) * 0.619));
  background: var(--purple-light);
  box-shadow: 0 0 8px var(--purple-light);
}

.core-node {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(calc(-50% + var(--mx) * 10px), calc(-50% + var(--my) * 10px));
  width: 80px;
  height: 80px;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  transition: transform 0.35s cubic-bezier(0.34, 1.4, 0.64, 1);
  -webkit-tap-highlight-color: transparent;
}

.core-node::before {
  content: '';
  position: absolute;
  inset: -28px;
  border-radius: 50%;
}

.hero-visual.is-bloom .core-node,
.core-node:hover {
  transform: translate(calc(-50% + var(--mx) * 10px), calc(-50% + var(--my) * 10px)) scale(1.08);
}

.core-node:hover .core-glow {
  box-shadow:
    0 0 50px rgba(0, 212, 255, 0.65),
    0 0 100px rgba(124, 58, 237, 0.35),
    inset 0 0 24px rgba(255, 255, 255, 0.2);
}

.core-node:active {
  transform: translate(calc(-50% + var(--mx) * 10px), calc(-50% + var(--my) * 10px)) scale(0.94);
}

.core-node.is-burst .core-burst {
  animation: core-burst 0.6s ease-out forwards;
}

.core-burst {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 2px solid rgba(0, 212, 255, 0.6);
  opacity: 0;
  pointer-events: none;
}

@keyframes core-burst {
  0% {
    transform: scale(0.8);
    opacity: 0.8;
  }

  100% {
    transform: scale(2.2);
    opacity: 0;
  }
}

.core-orbit {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 1px solid transparent;
}

.core-orbit-1 {
  border-top-color: rgba(0, 212, 255, 0.7);
  border-right-color: rgba(0, 212, 255, 0.15);
  animation: core-spin 4s linear infinite;
}

.core-orbit-2 {
  inset: -22px;
  border-bottom-color: rgba(124, 58, 237, 0.6);
  border-left-color: rgba(124, 58, 237, 0.12);
  animation: core-spin 6s linear infinite reverse;
}

.core-glow {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--gradient-main);
  box-shadow:
    0 0 32px rgba(0, 212, 255, 0.4),
    0 0 60px rgba(124, 58, 237, 0.18),
    inset 0 0 20px rgba(255, 255, 255, 0.12);
  animation: core-pulse 3s ease-in-out infinite;
}

.core-label {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

@keyframes core-spin {
  to {
    transform: rotate(360deg);
  }
}

.orbit-track {
  position: absolute;
  inset: 0;
  z-index: 3;
  transform: translate(calc(var(--mx) * 12px), calc(var(--my) * 12px));
  transition: transform 0.18s ease-out;
}

.orbit-item {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  transform: rotate(calc(var(--a) * 1deg)) translateY(calc(-1 * var(--orbit-r)));
  transition: transform 0.58s cubic-bezier(0.34, 1.56, 0.64, 1);
  transition-delay: calc(var(--i, 0) * 0.045s);
}

.orbit-item .float-card {
  position: absolute;
  top: 0;
  left: 0;
  transform: translate(-50%, -50%) rotate(calc(var(--a) * -1deg));
}

.hero-visual.is-bloom .orbit-item .float-card:not(.is-active):not(.is-interacting),
.hero-visual.has-selection .orbit-item .float-card:not(.is-active):not(.is-interacting) {
  animation: orbit-float 5s ease-in-out infinite;
  animation-delay: calc(var(--a) * 10ms);
}

.hero-visual:not(.is-bloom):not(.has-selection) .float-card {
  pointer-events: none;
}

.hero-visual:not(.is-bloom):not(.has-selection) .float-card-inner {
  transform: scale(0.96);
  opacity: 1;
  font-size: 0.78rem;
  padding: 0.5rem 0.85rem 0.5rem 0.7rem;
}

.orbit-item .float-card.is-active,
.orbit-item .float-card.is-interacting {
  animation: none !important;
}

.float-card {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 0;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  z-index: 1;
}

.float-card-inner {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.8rem 0.45rem 0.65rem;
  background: linear-gradient(135deg, rgba(10, 20, 35, 0.92) 0%, rgba(17, 24, 39, 0.75) 100%);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(0, 212, 255, 0.28);
  border-left: 2px solid var(--cyan);
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
  box-shadow:
    0 4px 20px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition:
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    transform 0.55s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 0.4s ease;
  overflow: hidden;
  transform: translate(var(--tx, 0px), var(--ty, 0px)) scale(1);
}

.float-card.is-interacting {
  animation: none !important;
}

.hero-visual.has-selection .float-card:not(.is-active) .float-card-inner {
  opacity: 0.45;
  transform: translate(var(--tx, 0px), var(--ty, 0px)) scale(0.88);
}

.float-card-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(0, 212, 255, 0.12) 50%, transparent 60%);
  transform: translateX(-100%);
  animation: card-shimmer 6s ease-in-out infinite;
  pointer-events: none;
}

@media (hover: hover) {
  .float-card:hover .float-card-inner {
    border-color: rgba(0, 212, 255, 0.5);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    transform: translate(var(--tx, 0px), var(--ty, 0px)) scale(1.06);
  }

  .float-card:hover {
    z-index: 10;
  }
}

.hero-visual.is-bloom .float-card-inner,
.hero-visual.has-selection .float-card-inner {
  font-size: 0.8rem;
  padding: 0.52rem 0.9rem 0.52rem 0.75rem;
}

.float-card.is-active .float-card-inner {
  border-left-color: #00ff88;
  border-left-width: 3px;
  border-color: rgba(0, 212, 255, 0.75);
  box-shadow:
    0 0 36px rgba(0, 212, 255, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transform: translate(var(--tx, 0px), var(--ty, 0px)) scale(1.24);
  opacity: 1;
}

.float-card.is-active {
  z-index: 10;
}

.float-card.is-pressed:not(.is-active) .float-card-inner {
  transform: translate(var(--tx, 0px), var(--ty, 0px)) scale(0.94);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.4),
    inset 0 2px 8px rgba(0, 0, 0, 0.2);
}

.card-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.45);
  transform: scale(0);
  animation: ripple-out 0.55s ease-out forwards;
  pointer-events: none;
  z-index: 2;
}

@keyframes ripple-out {
  to {
    transform: scale(2.8);
    opacity: 0;
  }
}

@keyframes card-shimmer {

  0%,
  70%,
  100% {
    transform: translateX(-100%);
  }

  85% {
    transform: translateX(100%);
  }
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: var(--cyan);
  flex-shrink: 0;
  filter: drop-shadow(0 0 4px rgba(0, 212, 255, 0.6));
}

.product-card.product-highlight {
  outline: 2px solid rgba(0, 212, 255, 0.55);
  box-shadow: 0 0 48px rgba(0, 212, 255, 0.22);
  transform: translateY(-4px);
  transition: box-shadow 0.35s ease, outline 0.35s ease, transform 0.35s ease;
}

@media (prefers-reduced-motion: reduce) {

  .hero-visual-bg,
  .orbit-path,
  .energy-dot,
  .spoke,
  .orbit-item .float-card,
  .orbit-ring,
  .ring-dot,
  .ring-dot-sm {
    animation: none !important;
  }

  .hero-visual:not(.is-bloom):not(.has-selection) .orbit-ring {
    opacity: 0.75;
    filter: none;
  }

  .hero-visual {
    --mx: 0 !important;
    --my: 0 !important;
  }
}

@keyframes orbit-float {

  0%,
  100% {
    transform: translate(-50%, -50%) rotate(calc(var(--a) * -1deg)) translateY(0);
  }

  50% {
    transform: translate(-50%, -50%) rotate(calc(var(--a) * -1deg)) translateY(-6px);
  }
}

@keyframes ring-spin {
  from {
    transform: translate(-50%, -50%) scale(var(--ring-scale)) rotate(0deg);
  }

  to {
    transform: translate(-50%, -50%) scale(var(--ring-scale)) rotate(360deg);
  }
}

@keyframes ring-spin-rev {
  from {
    transform: translate(-50%, -50%) scale(var(--ring-scale)) rotate(360deg);
  }

  to {
    transform: translate(-50%, -50%) scale(var(--ring-scale)) rotate(0deg);
  }
}

@keyframes ring-idle-glow {

  0%,
  100% {
    filter: brightness(0.92);
  }

  50% {
    filter: brightness(1.12);
  }
}

@keyframes ring-dot-idle {

  0%,
  100% {
    opacity: 0.55;
  }

  50% {
    opacity: 1;
  }
}

@keyframes core-pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.05);
    opacity: 0.92;
  }
}

/* Section Common */
section {
  padding: 5.5rem 0;
  position: relative;
  z-index: 1;
}

.section-header {
  margin-bottom: 2.25rem;
}

.section-header.center {
  text-align: center;
}

.section-header.center p {
  max-width: 600px;
  margin: 0 auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.35rem 0.85rem;
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  border-radius: 999px;
  margin-bottom: 1rem;
}

.section-tag::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.section-header h2 {
  font-size: clamp(1.65rem, 2.8vw, 2.15rem);
  font-weight: 700;
  margin-bottom: 0.85rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 0.975rem;
  line-height: 1.75;
}

/* Cases — 案例锚点区块 */
.cases {
  background: var(--bg-secondary);
  border-block: 1px solid var(--border);
}

.cases::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(20, 184, 166, 0.04), transparent);
  pointer-events: none;
}

/* FAQ */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.65rem;
  background: var(--bg-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.faq-item[open] {
  border-color: var(--border-accent);
  background: var(--bg-elevated);
}

.faq-item summary {
  padding: 1.15rem 1.35rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 50%;
  transition: var(--transition);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
  background: var(--accent);
  color: #fff;
}

.faq-item summary:hover {
  color: var(--accent);
}

.faq-item p {
  padding: 0 1.35rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.75;
}

/* Contact */
.contact {
  padding-bottom: 6rem;
}

.contact-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 2.75rem;
  background: linear-gradient(145deg, rgba(20, 184, 166, 0.06) 0%, var(--bg-elevated) 35%, var(--bg-secondary) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), 0 0 56px rgba(20, 184, 166, 0.08);
  position: relative;
  overflow: hidden;
}

.contact-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
}

.contact-content h2 {
  font-size: 1.85rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.contact-form .btn-primary {
  padding: 0.95rem 1.5rem;
  font-size: 0.975rem;
  box-shadow: 0 8px 32px rgba(13, 148, 136, 0.3);
}

.contact-content p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.contact-features {
  list-style: none;
}

.contact-features li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-wechat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0;
  min-height: 100%;
}

.contact-qr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: stretch;
}

.contact-qr-grid--single {
  grid-template-columns: 1fr;
  max-width: 220px;
  margin: 0 auto;
}

.contact-qr-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  padding: 1.25rem 1rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.contact-qr-card:hover {
  border-color: var(--border-accent);
  box-shadow: 0 8px 32px rgba(20, 184, 166, 0.1);
}

.contact-qr-card--official {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.contact-qr-card--personal {
  border-color: rgba(20, 184, 166, 0.35);
  background: linear-gradient(160deg, rgba(20, 184, 166, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
}

.contact-qr-badge {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  background: var(--gradient-main);
  border-radius: 999px;
  letter-spacing: 0.02em;
}

.contact-qr-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.contact-qr-desc {
  margin: 0 0 0.35rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.contact-qr-frame {
  padding: 0.5rem;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
}

.contact-qr-frame img {
  display: block;
  width: 168px;
  height: 168px;
  object-fit: contain;
}

.contact-kf-action {
  width: 100%;
}

.contact-kf-action .btn-primary {
  padding: 0.85rem 1.25rem;
  font-size: 0.925rem;
  box-shadow: 0 8px 32px rgba(13, 148, 136, 0.3);
}

.contact-wechat-unconfigured {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
  margin: 0;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.925rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.12);
  background: rgba(0, 0, 0, 0.35);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-note {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding-top: 4rem;
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1fr 1.2fr;
  gap: 2rem;
  padding-bottom: 3rem;
}

.footer-brand .logo-img {
  height: 2.35rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.footer-slogan {
  font-size: 0.85rem !important;
  margin-top: 0.5rem !important;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 0.9rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer-links a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

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

.footer-contact p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
}

.footer-bottom .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.5rem;
  margin: 0;
}

.footer-beian {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.footer-beian:hover {
  color: var(--text-secondary);
}

.footer-beian--pending {
  opacity: 0.55;
}

.footer-beian-sep {
  font-size: 0.78rem;
  color: var(--text-muted);
  opacity: 0.45;
}

/* Compact footer — list & detail pages */
.footer-compact {
  padding-top: 0;
  border-top: none;
}

.footer-compact::before {
  display: none;
}

.footer-compact .footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0 1.5rem;
}

/* Pillar cards */
.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pillar-card {
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.pillar-card:hover {
  border-color: var(--border-accent);
  transform: translateX(4px);
}

.pillar-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--cyan);
}

.pillar-card h3 {
  font-size: 1rem;
  margin: 0.35rem 0 0.5rem;
}

.pillar-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Industry stats (no images) */
.industry-stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto 1rem;
}

.industry-stat {
  text-align: center;
  padding: 1.25rem 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.industry-stat:hover {
  border-color: var(--border-accent);
}

.industry-pct {
  display: block;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.industry-stat span:last-child {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Proof cards (text only) */
.proof-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 960px;
  margin: 0 auto;
}

.proof-card {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.proof-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.proof-platform {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  background: rgba(0, 212, 255, 0.15);
  color: var(--cyan);
  border-radius: 6px;
  margin-bottom: 1rem;
}

.proof-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.proof-card p strong {
  color: var(--cyan);
  font-weight: 600;
}

.proof-industry {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: -0.5rem 0 0.75rem;
}

.ai-platform-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  max-width: 720px;
  margin: 0 auto 2rem;
}

.ai-platform-strip span {
  padding: 0.35rem 0.85rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.ai-platform-strip .platform-more {
  color: var(--cyan);
  border-color: rgba(0, 212, 255, 0.25);
}

.proof-footnote {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 1.5rem;
}

.proof-actions {
  display: flex;
  justify-content: center;
  margin-top: 1.25rem;
}

/* After sales grid */
.after-sales-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.after-sales-card {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  text-align: center;
  transition: var(--transition);
}

.after-sales-card:hover {
  border-color: var(--border-accent);
}

.after-sales-card h4 {
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

.after-sales-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Vision */
.vision {
  background: linear-gradient(180deg, transparent, rgba(124, 58, 237, 0.03), transparent);
}

.vision-lead {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto;
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.vision-card {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.vision-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.vision-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.vision-card:hover::before {
  opacity: 1;
}

.vision-card.featured {
  grid-column: span 3;
  border-color: var(--border-accent);
  background: var(--bg-card);
}

.vision-num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
}

.vision-card h3 {
  font-size: 1.05rem;
  margin: 0.5rem 0 0.75rem;
}

.vision-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.vision-quote {
  margin-top: 2.5rem;
  padding: 1.5rem 2rem;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.vision-quote p {
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.8;
}

/* About */
.about {
  padding: 5rem 0;
  scroll-margin-top: var(--site-header-offset);
}

#hero,
#geo-proof,
#products,
#faq,
#contact {
  scroll-margin-top: var(--site-header-offset);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 3rem;
}

.about-lead {
  color: var(--text-secondary);
  margin: 1rem 0 1.5rem;
  line-height: 1.8;
}

.about-lead strong {
  color: var(--cyan);
}

.about-facts {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.fact-item strong {
  display: block;
  margin-bottom: 0.35rem;
}

.fact-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.sub-title {
  text-align: center;
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}

.timeline-item {
  text-align: center;
}

.timeline-year {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  background: var(--gradient-main);
  border-radius: 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow-glow-strong);
}

.timeline-item h4 {
  font-size: 0.9rem;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.timeline-item p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Achievement — 数据卡片（已并入 Hero 信任带） */
.achievement-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
  position: relative;
}

.achievement-card {
  text-align: center;
  padding: 2rem 1rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.achievement-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.achievement-num {
  font-family: var(--font-display);
  font-size: 2.35rem;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.achievement-unit {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--accent);
}

.achievement-card>p {
  font-weight: 600;
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

.achievement-note {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.industry-insight {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

/* Product matrix */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

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

.product-card {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.product-card.featured {
  border-color: var(--border-accent);
  background: linear-gradient(160deg, rgba(20, 184, 166, 0.06) 0%, var(--bg-card) 45%);
}

.product-cat {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  background: rgba(124, 58, 237, 0.2);
  color: var(--purple-light);
  border-radius: 4px;
  margin-bottom: 0.65rem;
  width: fit-content;
}

.product-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.65rem;
  line-height: 1.4;
}

.product-card>p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
  flex: 1;
}

.product-features {
  list-style: none;
}

.product-features li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.35rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.product-features li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-size: 0.7rem;
}

/* GEO proof */
.geo-proof {
  background: var(--bg-secondary);
  border-block: 1px solid var(--border);
}

.proof-footnote a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.proof-footnote a:hover {
  color: var(--cyan);
  text-decoration: underline;
}

.cases-teaser {
  padding: 4.5rem 0;
}

.cases-teaser .section-header.center p {
  max-width: 36rem;
  white-space: normal;
  font-size: 0.95rem;
}

.cases-list-main {
  padding: calc(var(--site-header-height, 4.25rem) + 2.75rem) 0 1.5rem;
  view-transition-name: site-list-main;
}

.cases-list-main>.cases {
  padding: 0;
}

.cases-list-main .case-breadcrumb {
  margin-bottom: 0;
}

/* List page hero — 成功案例 / 解决方案列表页共用 */
.list-page-hero {
  max-width: 900px;
  margin: 0 auto 1.25rem;
  padding: 0.85rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.list-page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-main);
}

.list-page-breadcrumb {
  margin-bottom: 0.65rem;
  font-size: 0.8rem;
}

.list-page-hero-title-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.35rem;
}

.list-page-hero-text h1 {
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0;
}

.list-page-desc {
  color: var(--text-secondary);
  font-size: 0.84rem;
  line-height: 1.55;
  max-width: 36rem;
  margin: 0;
}

.list-page-hero--cases {
  max-width: 900px;
  padding: 1.15rem 1.35rem 1.25rem;
  margin-bottom: 1rem;
}

.cases-page-header {
  max-width: 900px;
  margin: 0 auto 1.5rem;
  padding: 0.25rem 0 0;
  scroll-margin-top: var(--site-header-offset);
}

.cases-page-header h1 {
  font-size: clamp(1.65rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.25;
  margin: 0.35rem 0 0.5rem;
}

.cases-page-lead {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0 0 0.65rem;
  max-width: 36rem;
}

.cases-page-platforms {
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--text-muted);
  margin: 0;
}

.list-page-hero--cases h1 {
  font-size: clamp(1.65rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.25;
  margin: 0.15rem 0 0.65rem;
}

.list-page-hero--cases .list-page-desc {
  font-size: 0.9rem;
  max-width: 42rem;
  margin: 0;
  line-height: 1.65;
  color: var(--text-secondary);
}

.list-page-stats {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0;
  letter-spacing: 0.01em;
}

.list-page-platforms {
  max-width: 900px;
  margin: 0 auto 1.25rem;
  justify-content: flex-start;
}

.case-platforms-bar {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
  max-width: 900px;
  margin: 0 auto 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.case-platforms-label,
.case-filters-label {
  flex-shrink: 0;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  line-height: 1.85;
}

.case-platforms-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.case-platforms-list span:not(:last-child)::after {
  content: '·';
  margin: 0 0.45rem;
  color: var(--text-muted);
}

.case-filters-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem 0.85rem;
  max-width: 900px;
  margin: 0 auto 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.case-filters-bar+.cases-feed>.case-feed-item:first-child,
.case-filters-bar+.case-feed-empty+.cases-feed>.case-feed-item:first-child {
  border-top: none;
}

.case-feed-empty {
  max-width: 900px;
  margin: 0 auto 1.5rem;
  padding: 2.5rem 1.25rem;
  text-align: center;
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.case-feed-empty p {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.case-feed-empty-reset {
  padding: 0.45rem 1.1rem;
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
}

.case-feed-empty-reset:hover {
  background: rgba(20, 184, 166, 0.18);
  color: var(--text-primary);
}

.list-page-cta {
  max-width: 900px;
  margin: 2rem auto 0;
  padding: 1.35rem 1.25rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(20, 184, 166, 0.08) 0%, rgba(14, 21, 32, 0.6) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
}

.list-page-cta p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0 0 1rem;
  line-height: 1.55;
}

.cases-teaser .cases-feed {
  max-width: 900px;
  margin-inline: auto;
}

.cases-feed {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 900px;
  margin: 0 auto;
}

.cases-list-main .case-filters {
  max-width: none;
  margin: 0;
  flex: 1;
  justify-content: flex-start;
}

.case-feed-item {
  position: relative;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.case-feed-item--featured {
  background: linear-gradient(180deg, rgba(20, 184, 166, 0.07) 0%, rgba(20, 184, 166, 0.02) 100%);
}

.case-feed-item--featured:first-child {
  border-top-color: rgba(20, 184, 166, 0.35);
}

.case-feed-badge {
  flex-shrink: 0;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.18rem 0.45rem;
  background: var(--accent);
  color: #071018;
  border-radius: 4px;
  line-height: 1.3;
}

.case-feed-title-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem 0.5rem;
  flex: 1;
  min-width: 0;
}

.case-feed-title-wrap .case-feed-title {
  flex: 1;
  min-width: 0;
}

.case-feed-item:first-child {
  border-top: 1px solid var(--border);
}

.case-feed-item:hover {
  background: var(--bg-elevated);
}

.case-feed-link {
  display: flex;
  gap: 1.5rem;
  padding: 1.75rem 0;
  text-decoration: none;
  color: inherit;
  align-items: stretch;
}

.case-feed-link--no-thumb {
  gap: 0;
}

.case-feed-thumb {
  flex: 0 0 220px;
  margin: 0;
  align-self: flex-start;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.case-feed-thumb img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
  display: block;
  transition: transform 0.35s ease;
}

.case-feed-item:hover .case-feed-thumb img {
  transform: scale(1.03);
}

.case-feed-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.case-feed-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.65rem 1rem;
  margin-bottom: 0.65rem;
}

.case-feed-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.45;
  margin: 0;
  flex: 1;
  min-width: 0;
  color: var(--text-primary);
  transition: color var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-feed-metric {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.3;
  padding: 0.28rem 0.55rem;
  background: rgba(20, 184, 166, 0.12);
  color: var(--accent);
  border: 1px solid rgba(20, 184, 166, 0.28);
  border-radius: 6px;
  white-space: nowrap;
}

.case-feed-link:hover .case-feed-title {
  color: var(--accent);
}

.case-feed-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0 0 0.85rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-feed-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.85rem;
  margin-top: auto;
  padding-top: 0.85rem;
}

.case-feed-meta .case-tag {
  margin-bottom: 0;
  line-height: 1.35;
  flex-shrink: 0;
}

.case-feed-action {
  margin-left: auto;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  transition: transform var(--transition), color var(--transition);
}

.case-feed-link:hover .case-feed-action {
  transform: translateX(3px);
  color: var(--text-primary);
}

.case-feed-date {
  font-size: 0.8rem;
  line-height: 1.35;
  color: var(--text-muted);
}

.case-page-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0.35rem 0 0.75rem;
}

.case-article-body {
  margin-top: 1.5rem;
}

.wp-case-content {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.wp-case-content h3 {
  font-size: 1.05rem;
  color: var(--text-primary);
  margin: 2rem 0 1rem;
}

.wp-case-content h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin: 1.75rem 0 0.75rem;
}

.wp-case-content p {
  margin: 0 0 1rem;
}

.wp-case-content ul {
  margin: 0 0 1rem 1.25rem;
  padding: 0;
}

.wp-case-content li {
  margin-bottom: 0.35rem;
}

.wp-case-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.wp-case-content figure {
  margin: 1.25rem 0;
}

.wp-case-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: block;
}

.wp-case-content strong {
  color: var(--text-primary);
}

.wp-case-content blockquote {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  background: rgba(20, 184, 166, 0.06);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.wp-case-content blockquote p {
  margin: 0;
  font-style: italic;
}

.wp-case-content ol {
  margin: 0 0 1rem 1.25rem;
  padding: 0;
}

.wp-case-content ol li {
  margin-bottom: 0.5rem;
}

.wp-case-content h3:first-child,
.wp-case-content h4:first-child {
  margin-top: 0;
}

.case-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.case-detail {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-dim);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.case-thumb {
  margin: -1.5rem -1.5rem 1rem;
  overflow: hidden;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.case-thumb img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.case-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.case-filter {
  padding: 0.45rem 1.1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: none;
  font-family: inherit;
}

.case-filter:hover,
.case-filter.active {
  background: var(--accent-soft);
  border-color: var(--border-accent);
  color: var(--accent);
}

.case-detail.is-hidden,
.case-feed-item.is-hidden {
  display: none;
}

.case-pagination-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  max-width: 900px;
  margin: 2rem auto 0;
  min-height: 2.5rem;
}

.case-pagination-bar.is-empty {
  visibility: hidden;
  pointer-events: none;
}

.case-pagination {
  display: flex;
  width: fit-content;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  margin: 0;
  flex-wrap: nowrap;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-card);
}

.case-page-btn {
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.75rem;
  border: none;
  border-radius: 0;
  border-right: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: color 0.06s ease, background 0.06s ease;
}

.case-page-btn:last-child {
  border-right: none;
}

.case-page-btn:hover:not(:disabled):not(.active) {
  background: rgba(20, 184, 166, 0.06);
  color: var(--accent);
}

.case-page-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.case-page-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.case-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}

.case-link:hover {
  color: var(--text-primary);
}

/* Case detail page */
.case-page-main {
  padding: 7rem 0 2rem;
  min-height: auto;
}

.case-page {
  max-width: 900px;
}

.case-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.case-breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
}

.case-breadcrumb a:hover {
  color: var(--accent);
}

.case-article-hero {
  margin-bottom: 2rem;
}

.case-article-hero-main {
  margin-bottom: 1.5rem;
}

.case-article-hero-main .case-tag {
  margin-bottom: 0.75rem;
}

.case-article-hero-main h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.35;
  margin: 0 0 0.75rem;
  max-width: 42rem;
}

.case-page-lead {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0 0 1rem;
  max-width: 42rem;
}

.case-page-metric {
  display: inline-flex;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.3;
  padding: 0.32rem 0.65rem;
  background: rgba(20, 184, 166, 0.12);
  color: var(--accent);
  border: 1px solid rgba(20, 184, 166, 0.28);
  border-radius: 6px;
}

.case-page-cover {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  background: var(--bg-elevated);
}

.case-page-cover img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.case-article-card {
  padding: 1.75rem 1.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}

.case-article-body {
  margin-top: 0;
}

.content-source {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.15rem 0.35rem;
  margin-top: 2rem;
  padding-top: 1.15rem;
  border-top: 1px dashed rgba(148, 163, 184, 0.22);
  font-size: 0.72rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.content-source-label {
  color: var(--text-muted);
}

.content-source-label::after {
  content: '：';
}

.content-source-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.content-source-link:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.case-page-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem;
  align-items: stretch;
  margin-bottom: 2rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.case-page-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.65rem 0.85rem;
  text-decoration: none;
  border-radius: var(--radius);
  transition: var(--transition);
  min-width: 0;
}

.case-page-nav-link--prev {
  align-items: flex-start;
}

.case-page-nav-link--next {
  align-items: flex-end;
  text-align: right;
}

.case-page-nav-link--list {
  align-self: center;
  justify-self: center;
  flex-shrink: 0;
  padding: 0.45rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.case-page-nav-link:hover {
  background: var(--bg-elevated);
  color: var(--accent);
}

.case-page-nav-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.case-page-nav-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-page-nav-link:hover .case-page-nav-title {
  color: var(--accent);
}

.case-page-header {
  margin-bottom: 2rem;
}

.case-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem 1.5rem;
  max-width: 720px;
  margin-bottom: 1.25rem;
}

.case-meta-item {
  font-size: 0.875rem;
}

.case-meta-key {
  display: block;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-bottom: 0.2rem;
}

.case-meta-val {
  color: var(--text-primary);
}

.case-page-metrics {
  margin-top: 0.5rem;
}

.case-section {
  margin-bottom: 2.25rem;
  max-width: 760px;
}

.case-section h2 {
  font-size: 1.15rem;
  margin-bottom: 0.85rem;
  color: var(--accent);
}

.case-section p,
.case-list li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
}

.case-list {
  padding-left: 1.15rem;
}

.case-list li {
  margin-bottom: 0.5rem;
}

.case-ai-example {
  margin-top: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.case-ai-example strong {
  display: block;
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.case-ai-example p {
  font-style: italic;
  margin: 0;
}

.case-testimonial {
  margin: 2rem 0;
  padding: 1.5rem 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 760px;
}

.case-testimonial p {
  color: var(--text-secondary);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: 0.75rem;
}

.case-testimonial footer {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.case-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  max-width: 960px;
}

.case-gallery-item {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
}

.case-gallery-item img {
  width: 100%;
  display: block;
}

.case-gallery-item figcaption {
  padding: 0.65rem 0.85rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

.case-page-cta {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.case-page-cta p {
  width: 100%;
  color: var(--text-secondary);
  margin: 0 0 0.25rem;
}

.case-not-found {
  padding: 4rem 0;
  text-align: center;
}

.case-not-found h1 {
  margin-bottom: 0.75rem;
}

.case-not-found p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

@media (max-width: 768px) {

  .case-article-card {
    padding: 1.25rem 1.15rem;
  }

  .case-page-nav {
    grid-template-columns: 1fr;
  }

  .case-page-nav-link--next {
    align-items: flex-start;
    text-align: left;
  }

  .case-page-nav-link--list {
    justify-self: stretch;
    text-align: center;
  }

  .case-meta-grid,
  .case-gallery {
    grid-template-columns: 1fr;
  }
}

.case-expand {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.case-expand summary {
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  user-select: none;
}

.case-expand summary::-webkit-details-marker {
  display: none;
}

.case-expand summary::after {
  content: '↓';
  font-size: 0.75rem;
  transition: transform var(--transition);
}

.case-expand[open] summary::after {
  transform: rotate(180deg);
}

.case-expand-body {
  padding-top: 0.85rem;
}

.case-expand-body h4 {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin: 0.85rem 0 0.35rem;
}

.case-expand-body h4:first-child {
  margin-top: 0;
}

.case-expand-body p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.case-detail .case-metrics {
  margin-top: 1rem;
}

.case-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2.5rem;
}

.case-detail:hover {
  border-color: var(--border-accent);
  border-left-color: var(--accent);
}

.case-tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: rgba(20, 184, 166, 0.12);
  color: var(--accent);
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

.case-detail h3 {
  font-size: 1.02rem;
  margin-bottom: 0.65rem;
  line-height: 1.45;
}

.case-detail>p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.case-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.metric-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--purple-light);
  display: block;
}

.metric span:last-child {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Advantages */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.advantage-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  text-align: center;
  transition: var(--transition);
}

.advantage-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.advantage-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-main);
  border-radius: 14px;
  font-weight: 700;
  font-size: 1.05rem;
}

.advantage-card h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.advantage-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-align: left;
  line-height: 1.7;
}

.advantage-subtitle {
  text-align: center;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin: 2.5rem 0 1.25rem;
}

.advantage-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.contact-direct {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.contact-direct p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}

.contact-direct a,
.footer-contact a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition);
}

.contact-direct a:hover,
.footer-contact a:hover {
  color: var(--accent);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-lead {
    margin-left: auto;
    margin-right: auto;
    font-size: 1.05rem;
  }

  .hero {
    min-height: auto;
    padding: 7rem 0 3rem;
  }

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

  .hero-unified {
    min-height: auto;
    padding: 7rem 0 2.5rem;
  }

  .hero-unified .hero-grid {
    min-height: auto;
    gap: 1.5rem;
    padding-bottom: 0;
  }

  .hero-unified .hero-lead {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-unified .hero-trust-panel {
    margin-top: 1.75rem;
    padding: 1.35rem 1rem 1.15rem;
  }

  .hero-unified .hero-visual {
    height: 320px;
    --orbit-r: 108px;
  }

  .hero-unified .hero-actions {
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 0;
  }

  .hero-unified .hero-trust .achievement-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-unified .industry-stats-compact {
    gap: 0.35rem 0.45rem;
  }

  .hero-stats {
    justify-content: center;
    margin-bottom: 0.5rem;
  }

  .hero-visual {
    height: 540px;
    margin-top: 2rem;
    transform: scale(0.92);
    transform-origin: center top;
  }

  .hero-unified .hero-visual {
    height: 320px;
    margin-top: 1.5rem;
    transform: none;
  }

  .float-card-inner {
    font-size: 0.72rem;
    padding: 0.45rem 0.7rem;
  }

  .about-grid,
  .achievement-grid,
  .vision-grid,
  .advantage-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero-unified .hero-trust .achievement-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .vision-card.featured {
    grid-column: span 1;
  }

  .case-feed-link {
    flex-direction: column;
    gap: 1rem;
    padding: 1.25rem 0;
  }

  .case-feed-item--featured {
    background: linear-gradient(180deg, rgba(20, 184, 166, 0.07) 0%, rgba(20, 184, 166, 0.02) 100%);
  }

  .case-feed-title-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.45rem;
  }

  .case-feed-metric {
    white-space: normal;
  }

  .case-feed-action {
    margin-left: 0;
  }

  .list-page-platforms {
    justify-content: center;
  }

  .case-filters-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .case-filters-bar .case-filters {
    width: 100%;
  }

  .case-feed-thumb {
    flex: none;
    width: 100%;
  }

  .proof-cards,
  .industry-stats,
  .after-sales-grid,
  .product-grid,
  .product-grid-full,
  .case-detail-grid,
  .cases-teaser .case-detail-grid {
    grid-template-columns: 1fr;
  }

  .cases-teaser .section-header.center p {
    white-space: normal;
  }

  .contact-box {
    grid-template-columns: 1fr;
  }

  .contact-qr-frame img {
    width: 148px;
    height: 148px;
  }

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

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 2rem 2rem;
    gap: 1.5rem;
    transition: var(--transition);
    border-left: 1px solid var(--border);
  }

  .nav.open {
    right: 0;
  }

  .menu-toggle {
    display: flex;
    z-index: 1001;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero-stats {
    gap: 1.5rem;
    flex-wrap: wrap;
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-has-dropdown::after {
    display: none;
  }

  .nav-has-dropdown>a {
    display: flex;
    width: 100%;
  }

  .nav-has-dropdown>a::after {
    margin-left: auto;
    margin-top: 0;
    display: none;
  }

  .nav-dropdown {
    display: none !important;
  }

  .nav-has-dropdown.is-open .nav-dropdown {
    display: none !important;
  }

  .nav-dropdown a {
    padding: 0.45rem 0.65rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
  }

  .nav-dropdown a:hover {
    color: var(--text-primary);
    background: var(--accent-soft);
    border-left-color: var(--accent);
  }
}

/* ===== Solutions ===== */
.solutions-section,
.solutions-teaser {
  padding: 3.5rem 0 4.5rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.advantages {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.solutions-list-main {
  padding-top: 5.5rem;
  padding-bottom: 1.5rem;
}

.solutions-list-main>.solutions,
.solutions-list-main>.cases {
  padding: 0;
}

.solutions-lead {
  max-width: 36rem;
  margin: 0.75rem auto 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.solution-filters {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  gap: 0.35rem 0.5rem;
  margin: 2rem auto 2.25rem;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0 0.25rem;
}

.solution-filters::-webkit-scrollbar {
  display: none;
}

.solution-filter {
  flex-shrink: 0;
  padding: 0.35rem 0.7rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.solution-filter:hover {
  color: var(--accent);
}

.solution-filter.active {
  border-color: var(--border-accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1.5rem 1rem;
}

.solution-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

.solution-card-link:hover .solution-card-title {
  color: var(--accent);
}

.solution-card-thumb {
  margin: 0;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.solution-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.solution-card-link:hover .solution-card-thumb img {
  transform: scale(1.03);
}

.solution-card-title {
  margin: 0.65rem 0 0;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.45;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.solutions-load-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2.5rem;
}

@media (max-width: 1200px) {
  .solutions-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 992px) {
  .solutions-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .list-page-hero {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
  }

  .solutions-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 0.75rem;
  }

  .solution-filters {
    gap: 0.35rem 0.5rem;
  }

  .solution-filter {
    font-size: 0.8rem;
    padding: 0.3rem 0.65rem;
  }
}

@media (max-width: 480px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }
}