/* ============================================
   TKY Design System - Global Stylesheet
   Based on DESIGN.md specification
   ============================================ */

/* ---- 0. Font Import (§3 Typography) ---- */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700;800&family=Inter:wght@400;500;600&display=swap');

/* ---- 1. CSS Variables (§2 Color Palette) ---- */
body { margin: 0; padding: 0; }

:root {
  /* Colors - Based on DESIGN.md */
  --color-aurora-deep-blue: #0A1931;
  --color-background-light: #F4F7FB;
  --color-neon-cyan: #00E5FF;
  --color-cyber-pink: #FF2A85;
  --color-pure-white: #FFFFFF;
  --color-dark-slate: #1A2235;
  --color-slate-border: #334155;
  --color-header-bg: #0B0F19;
  --color-surface: #1A2235;
  --color-surface-hover: #252F4A;
  /* Typography (§3) */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  /* Radii & Settings */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --transition: 0.3s ease-in-out;
  --container-max: 1440px;
}

/* ---- 2. Base Reset & Wrapper (§1 Visual Theme) ---- */
.tky-page-wrapper * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
.tky-page-wrapper {
  font-family: var(--font-body);
  background-color: var(--color-aurora-deep-blue);
  color: var(--color-pure-white);
  line-height: 1.7;
  overflow-x: hidden;
}
.tky-page-wrapper a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
.tky-page-wrapper img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---- 3. Typography Scale (§3) ---- */
.tky-page-wrapper h1,
.tky-page-wrapper h2,
.tky-page-wrapper h3 {
  font-family: var(--font-heading);
  color: var(--color-pure-white);
  font-weight: 700;
  text-wrap: balance;
}
.tky-page-wrapper h1 { font-size: clamp(36px, 5vw, 48px); line-height: 1.2; }
.tky-page-wrapper h2 { font-size: clamp(28px, 4vw, 32px); line-height: 1.3; }
.tky-page-wrapper h3 { font-size: 24px; font-weight: 600; line-height: 1.4; }
.tky-page-wrapper p { font-size: 16px; font-weight: 400; line-height: 1.7; color: var(--color-pure-white); }

/* Display: Hero 首屏大标题 (§3: 64px, 800, 1.1) */
.tky-page-wrapper .display {
  font-family: var(--font-heading);
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-pure-white);
}

/* Body Large (§3: 18px, 400, 1.7) */
.tky-page-wrapper .body-large {
  font-size: 18px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-pure-white);
}

/* Small (§3: 14px, 500, 1.4) — 标签与导航 */
.tky-page-wrapper .text-small {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}

/* ---- 4. Layout (§6 Layout Principles) ---- */

/* Container: max-width 1440px (§6) */
.tky-page-wrapper .tky-container {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}
@media (max-width: 767px) {
  .tky-page-wrapper .tky-container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* Mobile Typography (§8 Responsive Behavior) */
@media (max-width: 767px) {
  /* H1: 28-32px, weight 700, line-height 1.2 (缩至约70%) */
  .tky-page-wrapper h1 { font-size: 32px; line-height: 1.2; }
  /* Display: 30-32px, weight 800, line-height 1.2 (缩至约60%) */
  .tky-page-wrapper .display { font-size: 30px; line-height: 1.2; }
  /* H2: 24-28px, weight 700 (缩至约75%) */
  .tky-page-wrapper h2 { font-size: 24px; margin-bottom: 16px; }
  /* H3: 18-20px, weight 600 (缩至约85%) */
  .tky-page-wrapper h3 { font-size: 18px; }
  /* Section Title: 移动端缩小下边距 */
  .tky-page-wrapper .section-title { margin-bottom: 16px; }
}

/* Section Padding: 100-120px (§6) */
.tky-page-wrapper .section-padding { padding: 100px 0; }
@media (max-width: 767px) { .tky-page-wrapper .section-padding { padding: 40px 20px; } }

/* Section Title: 居中标题块 */
.tky-page-wrapper .section-title {
  text-align: center;
  margin-bottom: 60px;
}

/* ---- 5. Color Role Utilities (§2 Color Roles) ---- */
/* 浅色背景区域：标题变深色、正文变灰色 */
.tky-section--light h2,
.tky-section--light h3 {
  color: var(--color-dark-slate);
}
.tky-section--light p {
  color: var(--color-slate-border);
}

/* ---- 6. Button System (§5 Components + §4 Effect #2 Neon Glow) ---- */

/* Primary Button: 青底深字 (§5) */
.tky-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  background-color: var(--color-neon-cyan);
  color: #000;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  white-space: nowrap;
}
.tky-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.4), 0 0 32px rgba(0, 229, 255, 0.2);
}

/* Secondary Button: 粉底粉边框白字 (§5) */
.tky-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  background-color: transparent;
  color: var(--color-pure-white);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
}
.tky-btn-secondary:hover {
  transform: translateY(-2px);
  border-color: var(--color-cyber-pink);
  box-shadow: 0 4px 16px rgba(255, 42, 133, 0.3);
}

/* Conversion Button: 粉底白字，核心转化按钮 (§5) */
.tky-btn-conversion {
  display: inline-block;
  padding: 14px 28px;
  background-color: var(--color-cyber-pink);
  color: var(--color-pure-white);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}
.tky-btn-conversion:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 16px rgba(255, 42, 133, 0.4), 0 0 32px rgba(255, 42, 133, 0.2);
}

/* Buttons Mobile Responsive (§8) */
@media (max-width: 767px) {
  .tky-btn-primary,
  .tky-btn-secondary,
  .tky-btn-conversion {
    width: 100%;
    text-align: center;
  }
}

/* ---- 7. Card Hover Effects (§4 Effect #4: Hover Line) ---- */
/* 卡片底部青粉渐变悬浮线 + 上浮 + 环境光阴影 */
.tky-card-glow {
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.tky-card-glow::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-neon-cyan) 0%, var(--color-cyber-pink) 100%);
  transform: scaleX(0);
  transition: transform 0.3s ease;
  transform-origin: left;
}
.tky-card-glow:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 229, 255, 0.1);
}
.tky-card-glow:hover::after {
  transform: scaleX(1);
}

/* ---- 8. Link Style (§2 Accent 1: Neon Cyan) ---- */
.tky-link-cyan {
  color: var(--color-neon-cyan);
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ---- 9. Form Inputs (§5 Components: Inputs) ---- */
/* Focus 状态边框高亮为 #00E5FF */
.tky-form-input {
  width: 100%;
  height: 48px;
  background: var(--color-header-bg);
  border: 1px solid var(--color-slate-border);
  border-radius: var(--radius-md);
  padding: 0 12px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-pure-white);
  box-sizing: border-box;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.tky-form-input:focus {
  outline: none;
  border-color: var(--color-neon-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.15);
}
.tky-form-input::placeholder {
  color: var(--color-pure-white);
  opacity: 0.7;
}
textarea.tky-form-input {
  height: auto;
  min-height: 100px;
  padding: 12px;
  resize: vertical;
}

/* ---- 10. tky_products Shortcode Grid ---- */
.tky-products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 1024px) {
  .tky-products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .tky-products-grid { grid-template-columns: 1fr; }
}
.tky-product-card {
  padding: 0;
  overflow: hidden;
  background: #FFF;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  position: relative;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition);
}
.tky-product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 229, 255, 0.15);
}
.tky-product-card .tky-card-content {
  padding: 24px;
}
.tky-product-card h4 {
  color: var(--color-aurora-deep-blue);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}
.tky-product-card p {
  color: #334155;
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}
.tky-product-img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform 0.5s ease;
  display: block;
}
.tky-product-card:hover .tky-product-img {
  transform: scale(1.05);
}
.tky-product-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-neon-cyan), var(--color-cyber-pink));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.tky-product-card:hover::after {
  opacity: 1;
}

/* Blog Grid & Card (global) */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
@media (max-width: 991px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 767px) { .blog-grid { grid-template-columns: 1fr; } }
.blog-card {
  background: var(--color-pure-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(10, 25, 49, 0.05);
  position: relative;
  text-decoration: none;
  display: block;
}
.blog-card img { width: 100%; height: auto; }
.blog-card .card-content { padding: 24px; }
.blog-card h3 { color: var(--color-dark-slate); margin-bottom: 12px; margin-top: 0; }
.blog-card p { font-size: 14px; color: var(--color-slate-border); margin-bottom: 20px; }

/* ============================================
   Single Product Page Styles
   ============================================ */

.tky-single-product-wrapper {
  font-family: var(--font-body);
  background-color: var(--color-aurora-deep-blue);
  color: var(--color-pure-white);
  line-height: 1.7;
  overflow-x: hidden;
}
.tky-single-product-wrapper * {
  box-sizing: border-box;
}
.tky-single-product-wrapper img {
  max-width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* Hero Section */
.single-product-hero {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}
.single-product-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 25, 49, 0.92) 0%, rgba(10, 25, 49, 0.7) 100%);
  z-index: 1;
}
.single-product-hero .tky-container {
  position: relative;
  z-index: 2;
}
.single-product-hero-content {
  max-width: var(--container-max);
}
.single-product-category {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-neon-cyan);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}
.single-product-category a {
  color: var(--color-neon-cyan);
  transition: opacity 0.3s ease;
}
.single-product-category a:hover {
  opacity: 0.75;
}
.single-product-title {
  font-family: var(--font-heading);
  font-size: clamp(36px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-pure-white);
  margin: 0;
}

/* Ambient Light (§4 Effect #3) */
.single-product-hero-ambient {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.single-product-hero-ambient::before,
.single-product-hero-ambient::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(150px);
  opacity: 0.35;
}
.single-product-hero-ambient::before {
  width: 400px;
  height: 400px;
  background: var(--color-neon-cyan);
  top: -100px;
  right: -50px;
}
.single-product-hero-ambient::after {
  width: 300px;
  height: 300px;
  background: var(--color-cyber-pink);
  bottom: -80px;
  left: 20%;
}

/* Detail Section */
.single-product-detail {
  padding: 80px 0;
  background-color: var(--color-background-light);
}
.single-product-detail .tky-container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 32px;
  padding-right: 32px;
}
.single-product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

/* Left Column - Image */
.single-product-image-wrap {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background-color: #E8ECF2;
}
.single-product-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.single-product-image-wrap:hover .single-product-image {
  transform: scale(1.03);
}

/* Right Column - Info */
.single-product-info {
  padding-top: 8px;
}
.single-product-info-category {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-slate-border);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.single-product-info-category i {
  color: var(--color-neon-cyan);
}
.single-product-info-category a {
  color: var(--color-neon-cyan);
  font-weight: 600;
}
.single-product-info-category a:hover {
  opacity: 0.75;
}
.single-product-content {
  margin-bottom: 32px;
}
.single-product-content h2,
.single-product-content h3,
.single-product-content h4 {
  font-family: var(--font-heading);
  color: var(--color-dark-slate);
  font-weight: 700;
  margin-top: 24px;
  margin-bottom: 12px;
}
.single-product-content h2:first-child,
.single-product-content h3:first-child,
.single-product-content h4:first-child {
  margin-top: 0;
}
.single-product-content p,
.single-product-content ul,
.single-product-content ol {
  font-size: 16px;
  line-height: 1.8;
  color: #4A5568;
  margin-bottom: 16px;
}
.single-product-content ul,
.single-product-content ol {
  padding-left: 20px;
}
.single-product-content li {
  margin-bottom: 6px;
}
.single-product-content strong {
  color: var(--color-dark-slate);
  font-weight: 600;
}
.single-product-content a {
  color: var(--color-neon-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.single-product-content a:hover {
  opacity: 0.8;
}
.single-product-content img {
  border-radius: var(--radius-lg);
  margin: 20px 0;
}
.single-product-content table {
  width: 100%;
  border-collapse: collapse;
  /* margin: 20px 0; */
  font-size: 15px;
}
.single-product-content th,
.single-product-content td {
  padding: 10px 14px;
  border: 1px solid #D1D9E6;
  text-align: left;
}
.single-product-content th {
  /* background-color: #EEF2F7; */
  /* color: var(--color-dark-slate); */
  color: #4A5568;
  font-weight: 400;
}
.single-product-content td {
  color: #4A5568;
}

/* Action Buttons */
.single-product-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.single-product-actions .tky-btn-primary i,
.single-product-actions .tky-btn-secondary i {
  margin-right: 6px;
}

/* Related Products Section */
.single-product-related {
  padding: 80px 0;
  background-color: var(--color-aurora-deep-blue);
}
.single-product-related-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  color: var(--color-pure-white);
  text-align: center;
  margin-bottom: 48px;
}
.single-product-no-related {
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 16px;
  padding: 40px 0;
}

/* ---- Product Gallery ---- */
.product-gallery {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.product-gallery-main {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background-color: #E8ECF2;
  aspect-ratio: 4 / 3;
}
.gallery-main-item {
  width: 100%;
  height: 100%;
}
.gallery-main-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gallery-main-video {
  position: relative;
  cursor: pointer;
}
.gallery-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 24px;
  transition: all var(--transition);
  z-index: 2;
}
.gallery-play-btn:hover {
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.5);
}

/* Thumbnail Strip */
.product-gallery-thumbs {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 4px;
}
.product-gallery-thumbs::-webkit-scrollbar {
  display: none;
}
.product-thumb {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  background: none;
  scroll-snap-align: start;
  transition: border-color var(--transition), opacity var(--transition);
  position: relative;
}
.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.product-thumb.active {
  border-color: var(--color-neon-cyan);
}
.product-thumb:hover {
  opacity: 0.8;
}
.thumb-video-icon {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

/* Right Column - New Styles */
.single-product-info-title {
  font-family: var(--font-heading);
  color: var(--color-dark-slate);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  margin: 0 0 12px 0;
  line-height: 1.2;
}
.single-product-describe {
  margin-bottom: 28px;
}
.single-product-describe p {
  font-size: 16px;
  line-height: 1.8;
  color: #4A5568;
  margin-bottom: 12px;
}

/* Features Section */
.single-product-features {
  margin-bottom: 32px;
}
.features-title {
  font-family: var(--font-heading);
  color: var(--color-dark-slate);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 16px 0;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-neon-cyan);
  display: inline-block;
}
.features-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 15px;
  color: #4A5568;
  line-height: 1.6;
}
.feature-item i {
  color: var(--color-neon-cyan);
  font-size: 16px;
  margin-top: 3px;
  flex-shrink: 0;
}

/* Video Modal */
.product-video-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.product-video-modal.active {
  opacity: 1;
  visibility: visible;
}
.video-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
}
.video-modal-content {
  position: relative;
  width: 90%;
  max-width: 900px;
  z-index: 1;
}
.video-modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
  transition: color 0.3s ease;
}
.video-modal-close:hover {
  color: var(--color-neon-cyan);
}
.video-modal-inner {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: #000;
}
.video-modal-iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Responsive - Tablet */
@media (max-width: 991px) {
  .single-product-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .single-product-hero {
    min-height: 340px;
  }
  .product-gallery-main {
    aspect-ratio: 16 / 9;
  }
  .product-thumb {
    width: 72px;
    height: 72px;
  }
}

/* Responsive - Mobile */
@media (max-width: 767px) {
  .single-product-hero {
    min-height: 280px;
  }
  .single-product-detail {
    padding: 48px 0;
  }
  .single-product-related {
    padding: 48px 0;
  }
  .single-product-related-title {
    margin-bottom: 32px;
  }
  .single-product-actions {
    flex-direction: column;
  }
  .single-product-actions .tky-btn-primary,
  .single-product-actions .tky-btn-secondary {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  .product-gallery-main {
    aspect-ratio: 4 / 3;
  }
  .product-thumb {
    width: 64px;
    height: 64px;
  }
  .gallery-play-btn {
    width: 48px;
    height: 48px;
    font-size: 18px;
  }
}

/* ============================================
   BANNER / HERO SECTION
   ============================================ */

/* Banner Container */
.tky-banner {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0A1931 0%, #0d2137 50%, #0A1931 100%);
}

/* Ambient Background Lights (§4 Effect #3) */
.tky-banner-ambient {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.tky-banner-ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  animation: tky-banner-float 8s ease-in-out infinite;
}
.tky-banner-ambient-orb--cyan {
  width: 500px;
  height: 500px;
  background: rgba(0, 229, 255, 0.25);
  top: -120px;
  right: -80px;
  animation-delay: 0s;
}
.tky-banner-ambient-orb--pink {
  width: 400px;
  height: 400px;
  background: rgba(255, 42, 133, 0.2);
  bottom: -100px;
  left: 10%;
  animation-delay: -4s;
}

@keyframes tky-banner-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* Subtle overlay for depth */
.tky-banner-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(10, 25, 49, 0.6) 100%);
  z-index: 1;
  pointer-events: none;
}

/* Banner Content */
.tky-banner-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  text-align: center;
  padding: 60px 0;
}

/* Badge / Tag */
.tky-banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-neon-cyan);
  letter-spacing: 1px;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}
.tky-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-neon-cyan);
  animation: tky-badge-pulse 2s ease-in-out infinite;
}

@keyframes tky-badge-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 229, 255, 0.5); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(0, 229, 255, 0); }
}

/* Title */
.tky-banner-title {
  margin-bottom: 24px;
  letter-spacing: -1px;
}

/* Gradient Text Effect */
.tky-text-gradient {
  background: linear-gradient(90deg, var(--color-neon-cyan) 0%, var(--color-cyber-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Subtitle */
.tky-banner-subtitle {
  margin-bottom: 40px;
  opacity: 0.85;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* CTA Buttons Row */
.tky-banner-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

/* Stats Row */
.tky-banner-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.tky-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.tky-stat-number {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  color: var(--color-pure-white);
  line-height: 1.2;
}
.tky-stat-label {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.5px;
}
.tky-stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.15);
}

/* Bottom Fade Effect */
.tky-banner-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--color-aurora-deep-blue) 0%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}

/* ============================================
   Banner Responsive
   ============================================ */
@media (max-width: 767px) {
  .tky-banner {
    min-height: auto;
    padding: 80px 0 60px;
  }
  
  .tky-banner-content {
    padding: 40px 0;
  }
  
  .tky-banner-badge {
    font-size: 12px;
    padding: 6px 16px;
    margin-bottom: 20px;
  }
  
  .tky-banner-title br {
    display: none;
  }
  
  .tky-banner-subtitle br {
    display: none;
  }
  
  .tky-banner-subtitle {
    margin-bottom: 32px;
    font-size: 16px;
  }
  
  .tky-banner-actions {
    flex-direction: column;
    margin-bottom: 40px;
    gap: 12px;
  }
  
  .tky-banner-stats {
    flex-direction: column;
    gap: 20px;
    padding-top: 28px;
  }
  
  .tky-stat-divider {
    width: 40px;
    height: 1px;
  }
  
  .tky-stat-number {
    font-size: 28px;
  }
  
  .tky-banner-ambient-orb--cyan {
    width: 280px;
    height: 280px;
  }
  
  .tky-banner-ambient-orb--pink {
    width: 220px;
    height: 220px;
  }
  
  .tky-banner-fade {
    height: 60px;
  }
}

/* ============================================
   🎨 页面内容区块样式 - About & Services
   ============================================ */

/* ---- 通用 Section 样式 ---- */
.tky-section {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}

/* Section 标题 */
.tky-section-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--color-pure-white);
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
  position: relative;
}

/* 标题装饰下划线 */
.tky-section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-neon-cyan), var(--color-cyber-pink));
  margin: 20px auto 0;
  border-radius: 2px;
}

/* Section 描述文字 */
.tky-section-desc {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

/* ---- 关于我们 Section ---- */
.tky-section-about {
  background: linear-gradient(180deg, var(--color-aurora-deep-blue) 0%, #0d2140 100%);
}

/* 背景装饰光晕 */
.tky-section-about::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -150px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* Features 三列网格 */
.tky-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1100px;
  margin: 0 auto;
}

/* Feature 单项卡片 */
.tky-feature-item {
  background: linear-gradient(145deg, rgba(26, 34, 53, 0.8), rgba(26, 34, 53, 0.4));
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

/* Feature 卡片悬浮效果 */
.tky-feature-item:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.2),
    0 0 30px rgba(0, 229, 255, 0.08);
}

/* 底部发光线 */
.tky-feature-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-neon-cyan), var(--color-cyber-pink));
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  transition: transform 0.4s ease;
}

.tky-feature-item:hover::after {
  transform: translateX(-50%) scaleX(1);
}

/* Feature 图标 */
.tky-feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 88px;
  height: 88px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.12), rgba(255, 42, 133, 0.08));
  border: 1px solid rgba(0, 229, 255, 0.15);
  transition: all var(--transition);
}

.tky-feature-item:hover .tky-feature-icon {
  transform: scale(1.1) rotate(-5deg);
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.15);
}

/* Feature 标题 */
.tky-feature-item h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-pure-white);
  margin-bottom: 12px;
}

/* Feature 描述 */
.tky-feature-item p {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

/* ---- 服务 Section ---- */
.tky-section-services {
  background: linear-gradient(180deg, #0d2140 0%, var(--color-aurora-deep-blue) 100%);
  position: relative;
}

/* 背景装饰 */
.tky-section-services::before {
  content: '';
  position: absolute;
  bottom: -200px;
  left: -150px;
  width: 450px;
  height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 42, 133, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

/* Services 四列网格 */
.tky-services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

/* Service 卡片 */
.tky-service-card {
  background: linear-gradient(160deg, rgba(26, 34, 53, 0.9), rgba(15, 22, 38, 0.95));
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

/* 卡片悬浮 */
.tky-service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 42, 133, 0.3);
  box-shadow: 
    0 16px 36px rgba(0, 0, 0, 0.25),
    0 0 24px rgba(255, 42, 133, 0.06);
}

/* 左侧竖条装饰 */
.tky-service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-neon-cyan), var(--color-cyber-pink));
  opacity: 0;
  transition: opacity var(--transition);
}

.tky-service-card:hover::before {
  opacity: 1;
}

/* 服务编号 */
.tky-service-number {
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-neon-cyan), var(--color-cyber-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  opacity: 0.9;
  transition: all var(--transition);
}

.tky-service-card:hover .tky-service-number {
  opacity: 1;
  transform: scale(1.08);
}

/* 服务标题 */
.tky-service-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-pure-white);
  margin-bottom: 12px;
  transition: color var(--transition);
}

.tky-service-card:hover h3 {
  color: var(--color-neon-cyan);
}

/* 服务描述 */
.tky-service-card p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
  margin: 0;
  transition: color var(--transition);
}

.tky-service-card:hover p {
  color: rgba(255, 255, 255, 0.75);
}

/* ---- 响应式：平板 ---- */
@media (max-width: 1024px) {
  .tky-features {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  
  .tky-services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

/* ---- 响应式：手机 ---- */
@media (max-width: 767px) {
  .tky-section {
    padding: 60px 0;
  }
  
  .tky-section-desc {
    margin-bottom: 40px;
    font-size: 15px;
  }
  
  .tky-features {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .tky-feature-item {
    padding: 32px 24px;
  }
  
  .tky-feature-icon {
    width: 72px;
    height: 72px;
    font-size: 36px;
  }
  
  .tky-services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .tky-service-card {
    padding: 28px 24px;
  }
  
  .tky-service-number {
    font-size: 32px;
  }
}