/* FortShop — Animations & 3D Effects */

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes breathe {
  0%, 100% { opacity: 0.5; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.1); }
}

@keyframes ringRotate {
  from { transform: rotateY(0deg); }
  to { transform: rotateY(360deg); }
}

@keyframes dataFlow {
  0% { transform: translateY(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-200px); opacity: 0; }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(245, 158, 11, 0.3); }
  50% { box-shadow: 0 0 40px rgba(245, 158, 11, 0.6); }
}

@keyframes orbitFallback {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* Desktop nav hover — letter-up + underline (ref: codebuddy.cn / copilot.tencent.com/work) */
.nav-links a.nav-link--animated {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 16px 10px;
  overflow: visible;
  background: none;
  text-decoration: none;
  font-family: var(--font-nav);
  font-size: var(--nav-link-size);
  font-weight: 700;
  color: #fff;
}

.nav-links a.nav-link--animated::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 5px;
  height: 2px;
  border-radius: 2px;
  background: var(--nav-accent);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a.nav-link--animated:hover::after,
.nav-links a.nav-link--animated[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.nav-link__text {
  display: inline-flex;
  align-items: center;
}

.nav-link__char {
  display: inline-block;
  height: 1.35em;
  overflow: hidden;
  line-height: 1.35;
}

.nav-link__char-layer {
  display: block;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  transition-delay: var(--char-delay, 0s);
}

.nav-link__char-layer--hover {
  color: var(--cyan-glow);
}

.nav-links a.nav-link--animated:hover .nav-link__char-layer,
.nav-links a.nav-link--animated[aria-current="page"] .nav-link__char-layer {
  transform: translateY(-100%);
}

.nav-links a.nav-link--animated:hover,
.nav-links a.nav-link--animated[aria-current="page"] {
  background: none;
  color: var(--nav-accent);
}

/* Hero orbit fallback SVG */
.orbit-fallback-svg {
  width: 100%;
  height: 100%;
  animation: orbitFallback 30s linear infinite;
}

.orbit-fallback-svg .orbit-ring {
  fill: none;
  stroke: url(#orbitGradient);
  stroke-width: 1.5;
  opacity: 0.4;
}

.orbit-fallback-svg .orbit-node {
  filter: drop-shadow(0 0 6px var(--cyan-glow));
}

/* ===== Hero 太极 × AI 神经动画 ===== */
.hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-taiji {
  position: relative;
  width: min(100%, 480px);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}

.hero-taiji__orbit,
.hero-taiji__core {
  position: absolute;
}

.hero-taiji__orbit {
  inset: 0;
  animation: tj-orbit-spin 40s linear infinite;
}

.hero-taiji__core {
  top: 23%;
  left: 23%;
  width: 54%;
  height: 54%;
  animation: tj-core-spin 28s linear infinite;
  filter: drop-shadow(0 0 28px rgba(59, 130, 246, 0.35)) drop-shadow(0 0 18px rgba(139, 92, 246, 0.25));
}

.taiji-orbit-svg,
.taiji-svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* 神经节点脉冲 */
.tj-nodes {
  filter: drop-shadow(0 0 3px rgba(34, 211, 238, 0.5));
}

.tj-nodes circle {
  animation: tj-node-pulse 2.6s ease-in-out infinite;
}

.tj-nodes circle:nth-child(1) { animation-delay: 0s; }
.tj-nodes circle:nth-child(2) { animation-delay: 0.4s; }
.tj-nodes circle:nth-child(3) { animation-delay: 0.8s; }
.tj-nodes circle:nth-child(4) { animation-delay: 1.2s; }
.tj-nodes circle:nth-child(5) { animation-delay: 1.6s; }
.tj-nodes circle:nth-child(6) { animation-delay: 2.0s; }
.tj-nodes circle:nth-child(7) { animation-delay: 0.6s; }
.tj-nodes circle:nth-child(8) { animation-delay: 1.0s; }

/* 神经连接线流动 */
.tj-neural {
  animation: tj-neural-flow 3.2s ease-in-out infinite;
}

/* 太极核心两点呼吸 */
.tj-core-dot {
  animation: tj-core-breath 3s ease-in-out infinite;
}

.tj-core-dot--bottom {
  animation-delay: 1.5s;
}

/* 数据粒子 */
.hero-taiji__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.tj-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan-glow);
  box-shadow: 0 0 8px var(--cyan-glow);
  opacity: 0;
  animation: tj-particle-float 7s ease-in-out infinite;
}

.tj-particle:nth-child(1) { left: 22%; top: 32%; animation-delay: 0s; }
.tj-particle:nth-child(2) { left: 68%; top: 28%; animation-delay: 1.7s; background: var(--ai-accent); box-shadow: 0 0 8px var(--ai-accent); }
.tj-particle:nth-child(3) { left: 72%; top: 68%; animation-delay: 3.5s; background: var(--cta-gold); box-shadow: 0 0 8px var(--cta-gold); }
.tj-particle:nth-child(4) { left: 28%; top: 72%; animation-delay: 5.2s; }

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

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

@keyframes tj-node-pulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

@keyframes tj-neural-flow {
  0%, 100% { opacity: 0.25; }
  50% { opacity: 0.65; }
}

@keyframes tj-core-breath {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

@keyframes tj-particle-float {
  0% { opacity: 0; transform: translateY(0) scale(0.5); }
  20% { opacity: 1; }
  80% { opacity: 1; }
  100% { opacity: 0; transform: translateY(-70px) scale(1.3); }
}

/* Particle canvas containers */
.particle-canvas {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  pointer-events: none;
  opacity: 0.6;
}

.tab-visual-wrap {
  position: relative;
  min-height: 360px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-deep);
  border: 1px solid var(--border);
}

.tab-visual-wrap .report-mockup {
  position: relative;
  z-index: 2;
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
}

/* Data stream effect */
.data-stream {
  position: absolute;
  inset: 0;
  overflow: hidden;
  perspective: 400px;
}

.data-stream__col {
  position: absolute;
  top: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(34, 211, 238, 0.3);
  writing-mode: vertical-rl;
  animation: dataFlow 4s linear infinite;
}

.data-stream__col:nth-child(1) { left: 10%; animation-delay: 0s; }
.data-stream__col:nth-child(2) { left: 30%; animation-delay: 1.2s; }
.data-stream__col:nth-child(3) { left: 50%; animation-delay: 0.6s; }
.data-stream__col:nth-child(4) { left: 70%; animation-delay: 1.8s; }
.data-stream__col:nth-child(5) { left: 90%; animation-delay: 0.3s; }

/* Tab content layout */
.tab-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.capability-list {
  list-style: none;
}

.capability-list li {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.capability-list li:last-child { border-bottom: none; }

.capability-list__icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.capability-list__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.capability-list__desc {
  font-size: 13px;
  color: var(--text-muted);
}

/* Distribution feature blocks */
.dist-feature-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 880px;
  margin: 0 auto;
}

.dist-feature {
  display: flex;
  gap: 24px;
  padding: 28px 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.dist-feature:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.dist-feature__marker {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--cyan-glow);
  background: var(--cyan-dim);
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: var(--radius-md);
}

.dist-feature__body {
  flex: 1;
  min-width: 0;
}

.dist-feature__title {
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.dist-feature__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dist-feature__list > li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}

.dist-feature__list > li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.dist-feature__list > li strong {
  color: var(--text-primary);
  font-weight: 600;
}

.dist-feature__sublist {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}

.dist-feature__sublist li {
  position: relative;
  padding: 4px 0 4px 20px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-muted);
}

.dist-feature__sublist li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.7;
}

/* Distribution flow */
.flow-horizontal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.flow-step {
  flex: 1;
  min-width: 100px;
  text-align: center;
  padding: 16px 8px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  position: relative;
}

.flow-step__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan-glow);
  margin-bottom: 6px;
}

.flow-step__text {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.flow-arrow {
  color: var(--text-muted);
  font-size: 18px;
  flex-shrink: 0;
}

/* Poster mockup */
.poster-mockup {
  background: linear-gradient(160deg, #312e81, #1e1b4b);
  border-radius: var(--radius-lg);
  padding: 24px;
  aspect-ratio: 9/16;
  max-width: 220px;
  margin: 0 auto;
  border: 1px solid rgba(139, 92, 246, 0.3);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.poster-mockup__title {
  font-size: 16px;
  font-weight: 700;
  color: white;
  text-align: center;
}

.poster-mockup__chart {
  height: 80px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.poster-mockup__qr {
  width: 60px;
  height: 60px;
  background: white;
  border-radius: 6px;
  margin: 0 auto;
}

/* Version compare bar */
.version-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 24px;
  background: var(--bg-panel);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.version-bar__item {
  text-align: center;
  padding: 16px;
  border-radius: var(--radius-md);
}

.version-bar__item.is-active {
  background: var(--cyan-dim);
  border: 1px solid rgba(34, 211, 238, 0.3);
}

.version-bar__name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.version-bar__status {
  font-size: 13px;
  color: var(--text-muted);
}

/* Device mockups row */
.device-row {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.device-frame {
  text-align: center;
}

.device-frame__screen {
  width: 160px;
  height: 280px;
  background: linear-gradient(180deg, #1e293b, #0f172a);
  border: 2px solid var(--border);
  border-radius: 16px;
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 28px;
}

.device-frame__label {
  font-size: 13px;
  color: var(--text-muted);
}

/* Help quick links */
.help-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.help-link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 28px 16px 24px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  text-align: center;
  transition: all var(--transition);
}

.help-link-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
  color: inherit;
}

.help-link-card:hover .help-link-card__icon {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(34, 211, 238, 0.12);
}

.help-link-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.help-link-card__icon img {
  width: 32px;
  height: 32px;
  display: block;
}

.help-link-card__icon--purple {
  background: linear-gradient(145deg, rgba(139, 92, 246, 0.22), rgba(34, 211, 238, 0.08));
  border-color: rgba(139, 92, 246, 0.25);
}

.help-link-card__icon--cyan {
  background: linear-gradient(145deg, rgba(34, 211, 238, 0.18), rgba(59, 130, 246, 0.1));
  border-color: rgba(34, 211, 238, 0.28);
}

.help-link-card__icon--blue {
  background: linear-gradient(145deg, rgba(59, 130, 246, 0.22), rgba(34, 211, 238, 0.08));
  border-color: rgba(59, 130, 246, 0.25);
}

.help-link-card__icon--gold {
  background: linear-gradient(145deg, rgba(245, 158, 11, 0.2), rgba(34, 211, 238, 0.06));
  border-color: rgba(245, 158, 11, 0.28);
}

.help-link-card__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.help-link-card__desc {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-muted);
  max-width: 140px;
}

/* Legal document (help page) */
.legal-doc__intro {
  margin-bottom: 20px;
}

.legal-doc__toolbar {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-bottom: 16px;
}

.legal-doc__accordion.faq-list {
  margin-bottom: 0;
}

.legal-doc__accordion .faq-item:last-child {
  margin-bottom: 0;
}

.legal-doc__body p,
.legal-doc__body li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

.legal-doc__body p + p {
  margin-top: 10px;
}

.legal-doc__list {
  margin-top: 10px;
  padding-left: 1.25em;
}

.legal-doc__list li + li {
  margin-top: 6px;
}

.legal-doc__footer {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}

/* CTA section */
.cta-section {
  background:
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(59, 130, 246, 0.12), transparent),
    var(--bg-panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* Plan detail lists on pricing */
.plan-detail-list {
  list-style: none;
  margin: 16px 0;
}

.plan-detail-list li {
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
  font-size: 14px;
  color: var(--text-secondary);
}

.plan-detail-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary);
}

.plan-detail-list--exclude li::before { color: #EF4444; content: '✗'; }
.plan-detail-list--exclude li { color: var(--text-muted); }

/* Capability cards — inspired by CodeBuddy scenario grid */
.capability-cards-section .section__header {
  margin-bottom: 56px;
}

.capability-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.capability-card {
  background: var(--bg-elevated);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 32px;
  border: 1px solid var(--border);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.capability-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.capability-card__visual {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  line-height: 0;
}

.capability-card__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 560 / 340;
}

.capability-card__content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.capability-card__title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

.capability-card__info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.capability-card__label {
  color: var(--text-primary);
  font-weight: 600;
}

.capability-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}

.capability-card__tasks {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}

.capability-card__tasks .capability-card__label {
  display: block;
  margin-bottom: 8px;
}

.capability-card__tasks ul {
  margin: 0;
  padding-left: 18px;
}

.capability-card__tasks li {
  margin-bottom: 6px;
}

.capability-card__tasks li:last-child {
  margin-bottom: 0;
}

.capability-card .compliance-note {
  margin-top: auto;
  font-size: 12px;
}

@media (max-width: 1024px) {
  .capability-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1440px) {
  .nav-links a.nav-link--animated {
    padding: 6px 8px 8px;
    font-size: 14px;
  }

  .nav-links a.nav-link--animated::after {
    left: 8px;
    right: 8px;
  }
}

@media (max-width: 768px) {
  .flow-arrow { transform: rotate(90deg); }
  .help-links { grid-template-columns: repeat(2, 1fr); }
  .version-bar { grid-template-columns: 1fr; }
  .capability-cards-grid { grid-template-columns: 1fr; gap: 24px; }
  .capability-card { padding: 20px; gap: 20px; }
  .dist-feature { flex-direction: column; gap: 16px; padding: 20px; }
  .dist-feature__marker { width: 40px; height: 40px; font-size: 18px; }
}

@media (max-width: 767px) {
  #hero-orbit-canvas { display: none; }
  #hero-orbit-fallback { display: flex !important; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  .orbit-fallback-svg { animation: none; }
  .supply-ring { animation: none; }
  .data-stream__col { animation: none; opacity: 0.2; }
  #hero-orbit-canvas { display: none; }
  #hero-orbit-fallback { display: flex !important; }
  .nav-link__char-layer { transition: none; }
  .nav-links a.nav-link--animated::after { transition: none; transform: scaleX(1); transform-origin: left center; }
  .nav-links a.nav-link--animated:hover .nav-link__char-layer,
  .nav-links a.nav-link--animated[aria-current="page"] .nav-link__char-layer {
    transform: translateY(-100%);
  }
}