/* AI Marketing Page Specific Styles */

/* Scoped variables if needed, otherwise inherit from root */
.ai-page {
  --bg-base: #03050e;
  --bg-surface: #070c1a;
  --bg-raised: #0c1226;
  --fg0: rgba(255, 255, 255, 0.97);
  --fg1: rgba(255, 255, 255, 0.80);
  --fg2: rgba(255, 255, 255, 0.58);
  --border: rgba(255, 255, 255, 0.14);
  --border-hi: rgba(99, 130, 255, 0.52);
  --blue: #4f78ff;
  --indigo: #7b61ff;
  --cyan: #38bdf8;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 28px;
  /* --container is defined in styles.css */
  --card: rgba(255, 255, 255, 0.065);
  --card2: rgba(255, 255, 255, 0.10);
}

.ai-section {
  padding: clamp(60px, 8vh, 100px) 0;
  position: relative;
}

/* Hero Section */
.ai-hero {
  text-align: center;
  padding-top: 40px;
}

.ai-hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(79, 120, 255, 0.15);
  color: var(--cyan);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(79, 120, 255, 0.3);
}

.ai-hero h1 {
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #fff 0%, #b4c8ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.ai-hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--fg1);
  max-width: 700px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.ai-hero-subtitle strong {
  color: var(--cyan);
}

.hero-video-wrap {
  margin-top: 40px;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--border-hi);
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
  position: relative;
  background: var(--bg-raised);
  cursor: pointer;
}

.hero-video-wrap video {
  width: 100%;
  display: block;
}

.video-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s;
  z-index: 2;
}

.video-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.play-btn {
  width: 80px;
  height: 80px;
  background: rgba(79, 120, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 40px rgba(79, 120, 255, 0.5);
  transition: transform 0.2s;
}

.play-btn:hover {
  transform: scale(1.1);
}

.play-btn::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 16px 0 16px 28px;
  border-color: transparent transparent transparent white;
  margin-left: 4px;
}

/* Features */
.ai-section-label {
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.ai-section-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  margin-bottom: 48px;
  color: var(--fg0);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.ai-feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 32px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.ai-feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hi);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(79, 120, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 26px;
  line-height: 1;
}

.ai-feature-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--fg0);
}

.ai-feature-card h3 .ai {
  color: var(--cyan);
  font-weight: 800;
}

.ai-feature-card p {
  font-size: 14px;
  color: var(--fg2);
  line-height: 1.6;
  margin-bottom: 12px;
}

.ai-feature-card p .ai {
  color: var(--cyan);
  font-weight: 700;
}

.ai-feature-card ul {
  padding-left: 20px;
  color: var(--fg1);
  font-size: 14px;
  line-height: 1.8;
}

.platform-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  align-items: center;
}

.picon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, border-color 0.2s;
  overflow: hidden;
}

.picon:hover {
  transform: scale(1.15);
  border-color: rgba(255, 255, 255, 0.3);
}

.picon img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  display: block;
}

/* Flow Section */
.flow-lr {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 40px;
  margin-top: 40px;
  align-items: start;
}

@media(max-width: 768px) {
  .flow-lr {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.flow-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.flow-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 20px 20px 24px;
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}

.flow-step .sn {
  width: 32px;
  height: 32px;
  background: var(--blue);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 2px;
}

.flow-step-body h3 {
  font-size: 16px;
  color: var(--fg0);
  margin-bottom: 4px;
}

.flow-step-body p {
  font-size: 13px;
  color: var(--fg2);
  line-height: 1.5;
}

.flow-step-card {
  margin-top: 10px;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--border);
  max-width: 260px;
}

.flow-step-card img {
  width: 100%;
  height: auto;
  display: block;
}

.flow-right {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
}

.flow-right-header {
  text-align: center;
  margin-bottom: 4px;
}

.flow-right-header .sn {
  width: 32px;
  height: 32px;
  background: var(--blue);
  color: white;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 8px;
}

.flow-right-header h3 {
  font-size: 16px;
  color: var(--fg0);
  margin-bottom: 4px;
}

.flow-right-header p {
  font-size: 13px;
  color: var(--fg2);
}

.flow-right-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  max-width: 360px;
}

.phone-frame {
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid #000000;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
  transition: transform 0.3s;
  background: var(--bg-surface);
  display: flex;
  flex-direction: column;
}

.phone-frame:hover {
  transform: translateY(-4px);
}

.phone-frame img {
  width: 100%;
  height: auto;
  display: block;
  flex: 1;
  object-fit: cover;
}

.phone-frame-label {
  text-align: center;
  padding: 5px 4px;
  font-size: 11px;
  color: var(--fg2);
  background: var(--bg-surface);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  height: 28px;
  line-height: 18px;
  flex-shrink: 0;
}

/* Alliance */
.alliance-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 40px;
  align-items: start;
}

@media(max-width: 768px) {
  .alliance-layout {
    grid-template-columns: 1fr;
  }
}

.alliance-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.alliance-text h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--fg0);
}

.alliance-text p {
  font-size: 14px;
  color: var(--fg1);
  line-height: 1.7;
}

.alliance-flow {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.alliance-step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  border-radius: var(--r-md);
  background: var(--card);
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.alliance-step:hover {
  border-color: var(--border-hi);
}

.alliance-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--blue);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.alliance-step-content {
  font-size: 13px;
  color: var(--fg1);
  line-height: 1.6;
}

.alliance-step-content strong {
  color: var(--cyan);
}

.alliance-screens {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.alliance-layout .alliance-screens {
  gap: 6px;
}

.alliance-screens .phone-frame {
  max-width: 180px;
  margin: 0;
  width: 100%;
}

/* Dashboard */
.compare {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.compare-box {
  padding: 32px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
}

.compare-box.before {
  background: rgba(255, 255, 255, 0.03);
}

.compare-box.after {
  background: linear-gradient(135deg, rgba(79, 120, 255, 0.1), rgba(3, 5, 14, 0.4));
  border-color: var(--blue);
  box-shadow: 0 0 20px rgba(79, 120, 255, 0.15);
}

.compare-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--fg0);
}

.compare-list li {
  margin-bottom: 12px;
  color: var(--fg1);
  display: flex;
  align-items: center;
  gap: 8px;
}

.compare-result {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-weight: 700;
  color: var(--cyan);
  text-align: center;
}

.compare-result--loss {
  color: var(--fg2);
}

.data-dashboard-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 32px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.data-dashboard-wrap .alliance-screens {
  background: linear-gradient(135deg, rgba(79, 120, 255, 0.1), rgba(3, 5, 14, 0.4));
  border-color: var(--blue);
  box-shadow: 0 0 20px rgba(79, 120, 255, 0.15);
}

.data-dashboard-wrap .phone-frame {
  max-width: 180px;
  margin-inline: auto;
  width: 100%;
  border: 1px solid #000000;
  box-shadow: 0 0 15px rgba(79, 120, 255, 0.2);
}

/* Materials Section */
.materials-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

@media(max-width: 768px) {
  .materials-container {
    grid-template-columns: 1fr;
  }
}

.mat-text h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--fg0);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.mat-text h3 span {
  font-size: 12px;
  background: var(--blue);
  padding: 2px 8px;
  border-radius: 4px;
  vertical-align: middle;
}

.mat-text p {
  font-size: 14px;
  color: var(--fg2);
  line-height: 1.6;
  margin-bottom: 24px;
}

.mat-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mat-item {
  display: flex;
  gap: 16px;
}

.mat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(79, 120, 255, 0.15);
  color: var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.mat-info h4 {
  font-size: 16px;
  color: var(--fg0);
  margin-bottom: 6px;
}

.mat-info p {
  font-size: 13px;
  color: var(--fg2);
  line-height: 1.5;
}

.mat-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  background: linear-gradient(145deg, rgba(20, 30, 60, 0.6), rgba(10, 15, 30, 0.8));
  border: 1px solid rgba(79, 120, 255, 0.3);
  box-shadow: 0 0 30px rgba(79, 120, 255, 0.1);
  border-radius: var(--r-lg);
  padding: 24px;
}

.mat-images .alliance-screens {
  background: none;
  border: none;
  box-shadow: none;
}

.mat-images .phone-frame {
  max-width: 180px;
  margin-inline: auto;
  width: 100%;
  border: 1px solid #000000;
}

/* Grid/Industries/Scenarios */
.grid-section {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.grid-item {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border);
}

.grid-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.grid-item:hover img {
  transform: scale(1.08);
}

.grid-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 6px 8px;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.75) 0%, transparent 100%);
  color: white;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top left, rgba(79, 120, 255, 0.85) 0%, rgba(0, 0, 0, 0.6) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 14px 10px;
  opacity: 0;
  transform: translateY(20%);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
}

.grid-item:hover .grid-overlay {
  opacity: 1;
  transform: translateY(0);
}

.grid-item:hover .grid-label {
  opacity: 0;
}

.grid-overlay .ov-title {
  color: white;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.grid-overlay .ov-desc {
  color: rgba(255, 255, 255, 0.85);
  font-size: 11px;
  line-height: 1.4;
}

/* CTA Section */
.cta-section {
  text-align: center;
  background: linear-gradient(180deg, transparent 0%, rgba(79, 120, 255, 0.1) 100%);
}

/* Utility classes to replace inline styles */
.active-nav-link {
  color: var(--fg0) !important;
  background: var(--card2);
}

.picon-meituan {
  background: #ffc300;
  border-color: rgba(255, 195, 0, 0.4);
}
.picon-text-meituan {
  font-size: 11px;
  font-weight: 900;
  color: #000;
  line-height: 1;
}

.picon-dianping {
  background: #ff6633;
  border-color: rgba(255, 102, 51, 0.4);
}
.picon-text-dianping {
  font-size: 9px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.picon-weapp {
  background: #07c160;
  border-color: rgba(7, 193, 96, 0.4);
}

.text-cyan-bold {
  color: var(--cyan);
  font-weight: 700;
}

.bg-gradient-materials {
  background: linear-gradient(180deg, rgba(3, 5, 14, 0) 0%, rgba(79, 120, 255, 0.05) 100%) !important;
}

.case-card-override {
  padding: 0;
  overflow: hidden;
}

.case-card-img-override {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.case-card-body-override {
  padding: 24px;
}

.case-card-meta {
  margin-top: 12px;
  font-size: 12px;
  color: var(--cyan);
}

.cta-subtitle {
  margin-bottom: 32px;
  color: var(--fg1);
}