/* ============================================
   探花 - 原创样式表
   品牌色系：探花主色调
   bjkhqmv.cn
   ============================================ */

/* === CSS Variables === */
:root {
  --tx-pink: #E8436F;
  --tx-pink-light: #FF6B9D;
  --tx-pink-dark: #C4325A;
  --tx-navy: #1A1A2E;
  --tx-dark: #0F0F1A;
  --tx-card: #1C1C30;
  --tx-card-hover: #252545;
  --tx-orange: #FFB347;
  --tx-orange-dark: #E89A30;
  --tx-text: #F0F0F5;
  --tx-text-muted: #9A9AB0;
  --tx-border: #2A2A45;
  --tx-gradient: linear-gradient(135deg, #E8436F 0%, #FF6B9D 100%);
  --tx-gradient-dark: linear-gradient(180deg, #0F0F1A 0%, #1A1A2E 100%);
  --tx-shadow: 0 4px 20px rgba(232, 67, 111, 0.15);
  --tx-shadow-lg: 0 8px 40px rgba(232, 67, 111, 0.25);
  --tx-radius: 12px;
  --tx-radius-sm: 8px;
  --tx-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --tx-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --tx-max-width: 1280px;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--tx-font);
  background: var(--tx-dark);
  color: var(--tx-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--tx-pink-light); text-decoration: none; transition: var(--tx-transition); }
a:hover { color: var(--tx-orange); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
p { margin-bottom: 1rem; }

/* === Container === */
.tx-container {
  width: 100%;
  max-width: var(--tx-max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* === Header / Navigation === */
.tx-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 26, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--tx-border);
  transition: var(--tx-transition);
}
.tx-header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}
.tx-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: var(--tx-max-width);
  margin: 0 auto;
  padding: 0 20px;
}
.tx-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--tx-text);
}
.tx-logo img {
  height: 40px;
  width: auto;
}
.tx-logo span {
  background: var(--tx-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tx-nav { display: flex; align-items: center; gap: 8px; }
.tx-nav a {
  color: var(--tx-text-muted);
  padding: 8px 16px;
  border-radius: var(--tx-radius-sm);
  font-size: 0.95rem;
  transition: var(--tx-transition);
  white-space: nowrap;
}
.tx-nav a:hover, .tx-nav a.active {
  color: var(--tx-text);
  background: rgba(232, 67, 111, 0.15);
}
.tx-nav a.active { color: var(--tx-pink); }

/* Mobile menu toggle */
.tx-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}
.tx-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--tx-text);
  transition: var(--tx-transition);
  border-radius: 2px;
}

/* === Search Bar === */
.tx-search-bar {
  background: var(--tx-navy);
  padding: 15px 0;
  border-bottom: 1px solid var(--tx-border);
  margin-top: 70px;
}
.tx-search-form {
  display: flex;
  max-width: 680px;
  margin: 0 auto;
  gap: 10px;
}
.tx-search-input {
  flex: 1;
  padding: 12px 20px;
  background: var(--tx-card);
  border: 1px solid var(--tx-border);
  border-radius: 50px;
  color: var(--tx-text);
  font-size: 0.95rem;
  outline: none;
  transition: var(--tx-transition);
}
.tx-search-input:focus {
  border-color: var(--tx-pink);
  box-shadow: 0 0 0 3px rgba(232, 67, 111, 0.2);
}
.tx-search-input::placeholder { color: var(--tx-text-muted); }
.tx-search-btn {
  padding: 12px 28px;
  background: var(--tx-gradient);
  border: none;
  border-radius: 50px;
  color: #fff;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--tx-transition);
  font-weight: 600;
}
.tx-search-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--tx-shadow);
}

/* === Hero Banner === */
.tx-hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--tx-dark);
}
.tx-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.tx-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(15, 15, 26, 0.4) 0%,
    rgba(15, 15, 26, 0.7) 60%,
    rgba(15, 15, 26, 0.95) 100%);
}
.tx-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 40px 20px;
}
.tx-hero-content h1 {
  font-size: 3rem;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}
.tx-hero-content h1 .tx-highlight {
  background: var(--tx-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tx-hero-content .tx-subtitle {
  font-size: 1.2rem;
  color: var(--tx-text-muted);
  margin-bottom: 30px;
  line-height: 1.8;
}
.tx-hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 30px;
}
.tx-hero-stat {
  text-align: center;
}
.tx-hero-stat .num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--tx-pink);
}
.tx-hero-stat .label {
  font-size: 0.85rem;
  color: var(--tx-text-muted);
  margin-top: 4px;
}

/* === Buttons === */
.tx-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--tx-transition);
  border: none;
  text-decoration: none;
}
.tx-btn-primary {
  background: var(--tx-gradient);
  color: #fff;
}
.tx-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--tx-shadow-lg);
  color: #fff;
}
.tx-btn-outline {
  background: transparent;
  border: 2px solid var(--tx-pink);
  color: var(--tx-pink);
}
.tx-btn-outline:hover {
  background: var(--tx-pink);
  color: #fff;
}
.tx-btn-sm {
  padding: 8px 20px;
  font-size: 0.85rem;
}

/* === Section === */
.tx-section {
  padding: 80px 0;
}
.tx-section-alt {
  background: var(--tx-navy);
}
.tx-section-header {
  text-align: center;
  margin-bottom: 50px;
}
.tx-section-header h2 {
  margin-bottom: 12px;
}
.tx-section-header h2 .tx-highlight {
  color: var(--tx-pink);
}
.tx-section-header p {
  color: var(--tx-text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.05rem;
}
.tx-section-header .tx-divider {
  width: 60px;
  height: 3px;
  background: var(--tx-gradient);
  margin: 16px auto 0;
  border-radius: 3px;
}

/* === Video Card Grid === */
.tx-video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tx-video-card {
  background: var(--tx-card);
  border-radius: var(--tx-radius);
  overflow: hidden;
  transition: var(--tx-transition);
  border: 1px solid var(--tx-border);
}
.tx-video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--tx-shadow-lg);
  border-color: var(--tx-pink);
}
.tx-video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.tx-video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--tx-transition);
}
.tx-video-card:hover .tx-video-thumb img {
  transform: scale(1.05);
}
.tx-video-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 15, 26, 0.5);
  opacity: 0;
  transition: var(--tx-transition);
}
.tx-video-card:hover .tx-video-play {
  opacity: 1;
}
.tx-video-play-icon {
  width: 56px;
  height: 56px;
  background: var(--tx-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--tx-shadow-lg);
  transition: var(--tx-transition);
}
.tx-video-play-icon::after {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 3px;
}
.tx-video-card:hover .tx-video-play-icon {
  transform: scale(1.1);
}
.tx-video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}
.tx-video-info {
  padding: 16px;
}
.tx-video-info h4 {
  font-size: 0.95rem;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}
.tx-video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--tx-text-muted);
  font-size: 0.8rem;
}
.tx-video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}
.tx-video-tag {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(232, 67, 111, 0.15);
  color: var(--tx-pink-light);
  border-radius: 20px;
  font-size: 0.75rem;
  margin-top: 8px;
}

/* === Feature Cards === */
.tx-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.tx-feature-card {
  background: var(--tx-card);
  border-radius: var(--tx-radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--tx-transition);
  border: 1px solid var(--tx-border);
}
.tx-feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--tx-pink);
  box-shadow: var(--tx-shadow);
}
.tx-feature-icon {
  width: 64px;
  height: 64px;
  background: var(--tx-gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
}
.tx-feature-card h4 {
  margin-bottom: 10px;
}
.tx-feature-card p {
  color: var(--tx-text-muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* === Expert Team === */
.tx-expert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.tx-expert-card {
  background: var(--tx-card);
  border-radius: var(--tx-radius);
  padding: 30px 20px;
  text-align: center;
  transition: var(--tx-transition);
  border: 1px solid var(--tx-border);
}
.tx-expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow);
}
.tx-expert-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--tx-pink);
}
.tx-expert-card h4 { margin-bottom: 4px; }
.tx-expert-role {
  color: var(--tx-pink-light);
  font-size: 0.85rem;
  margin-bottom: 10px;
}
.tx-expert-card p {
  color: var(--tx-text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}
.tx-expert-links {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
}

/* === Reviews === */
.tx-review-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.tx-review-card {
  background: var(--tx-card);
  border-radius: var(--tx-radius);
  padding: 24px;
  border: 1px solid var(--tx-border);
  transition: var(--tx-transition);
}
.tx-review-card:hover {
  border-color: var(--tx-pink);
}
.tx-review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.tx-review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--tx-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  flex-shrink: 0;
}
.tx-review-name { font-weight: 600; font-size: 0.95rem; }
.tx-review-date { color: var(--tx-text-muted); font-size: 0.8rem; }
.tx-review-stars {
  color: var(--tx-orange);
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.tx-review-text {
  color: var(--tx-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* === FAQ === */
.tx-faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.tx-faq-item {
  background: var(--tx-card);
  border-radius: var(--tx-radius);
  margin-bottom: 12px;
  border: 1px solid var(--tx-border);
  overflow: hidden;
}
.tx-faq-question {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  transition: var(--tx-transition);
}
.tx-faq-question:hover {
  color: var(--tx-pink);
}
.tx-faq-arrow {
  transition: var(--tx-transition);
  font-size: 1.2rem;
  color: var(--tx-pink);
}
.tx-faq-item.active .tx-faq-arrow {
  transform: rotate(180deg);
}
.tx-faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--tx-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}
.tx-faq-item.active .tx-faq-answer {
  padding: 0 24px 20px;
  max-height: 500px;
}

/* === Partners === */
.tx-partner-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  align-items: center;
}
.tx-partner-item {
  background: var(--tx-card);
  border-radius: var(--tx-radius-sm);
  padding: 20px;
  text-align: center;
  border: 1px solid var(--tx-border);
  transition: var(--tx-transition);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
  font-weight: 600;
  color: var(--tx-text-muted);
  font-size: 0.9rem;
}
.tx-partner-item:hover {
  border-color: var(--tx-pink);
  color: var(--tx-text);
}

/* === Footer === */
.tx-footer {
  background: var(--tx-navy);
  border-top: 1px solid var(--tx-border);
  padding: 60px 0 30px;
}
.tx-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.tx-footer-brand p {
  color: var(--tx-text-muted);
  font-size: 0.9rem;
  margin-top: 12px;
  line-height: 1.8;
}
.tx-footer h5 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--tx-text);
}
.tx-footer-links a {
  display: block;
  color: var(--tx-text-muted);
  padding: 4px 0;
  font-size: 0.9rem;
}
.tx-footer-links a:hover {
  color: var(--tx-pink);
}
.tx-footer-qr {
  display: flex;
  gap: 16px;
}
.tx-footer-qr-item {
  text-align: center;
}
.tx-footer-qr-item img {
  width: 100px;
  height: 100px;
  border-radius: var(--tx-radius-sm);
  margin-bottom: 6px;
}
.tx-footer-qr-item span {
  font-size: 0.75rem;
  color: var(--tx-text-muted);
}
.tx-footer-bottom {
  border-top: 1px solid var(--tx-border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--tx-text-muted);
  font-size: 0.85rem;
}
.tx-social-links {
  display: flex;
  gap: 12px;
}
.tx-social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--tx-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tx-text-muted);
  font-size: 0.85rem;
  transition: var(--tx-transition);
  border: 1px solid var(--tx-border);
}
.tx-social-links a:hover {
  background: var(--tx-pink);
  color: #fff;
  border-color: var(--tx-pink);
}

/* === Breadcrumb === */
.tx-breadcrumb {
  padding: 15px 0;
  margin-top: 70px;
  background: var(--tx-navy);
  border-bottom: 1px solid var(--tx-border);
}
.tx-breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--tx-text-muted);
}
.tx-breadcrumb-list a { color: var(--tx-text-muted); }
.tx-breadcrumb-list a:hover { color: var(--tx-pink); }
.tx-breadcrumb-list .sep { color: var(--tx-border); }
.tx-breadcrumb-list .current { color: var(--tx-pink); }

/* === Content Page === */
.tx-page-header {
  padding: 60px 0 40px;
  text-align: center;
  background: var(--tx-gradient-dark);
}
.tx-page-header h1 {
  margin-bottom: 12px;
}
.tx-page-header p {
  color: var(--tx-text-muted);
  max-width: 600px;
  margin: 0 auto;
}
.tx-content-section {
  padding: 60px 0;
}
.tx-content-section p {
  color: var(--tx-text-muted);
  font-size: 1rem;
  line-height: 1.9;
}

/* === How-To Guide === */
.tx-howto-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tx-howto-step {
  background: var(--tx-card);
  border-radius: var(--tx-radius);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--tx-border);
  position: relative;
}
.tx-howto-step .step-num {
  width: 40px;
  height: 40px;
  background: var(--tx-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 16px;
  font-size: 1.1rem;
}
.tx-howto-step h4 { margin-bottom: 8px; font-size: 1rem; }
.tx-howto-step p { color: var(--tx-text-muted); font-size: 0.85rem; margin-bottom: 0; }

/* === Contact Info === */
.tx-contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.tx-contact-card {
  background: var(--tx-card);
  border-radius: var(--tx-radius);
  padding: 28px;
  border: 1px solid var(--tx-border);
}
.tx-contact-card h4 {
  margin-bottom: 16px;
  color: var(--tx-pink);
}
.tx-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  color: var(--tx-text-muted);
  font-size: 0.9rem;
}
.tx-contact-item .label {
  font-weight: 600;
  color: var(--tx-text);
  min-width: 80px;
}

/* === Share Buttons === */
.tx-share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
}
.tx-share-bar span {
  color: var(--tx-text-muted);
  font-size: 0.9rem;
}
.tx-share-btn {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--tx-border);
  background: var(--tx-card);
  color: var(--tx-text);
  transition: var(--tx-transition);
}
.tx-share-btn:hover {
  border-color: var(--tx-pink);
  color: var(--tx-pink);
}

/* === Lazy Load Placeholder === */
.tx-lazy {
  opacity: 0;
  transition: opacity 0.5s ease;
}
.tx-lazy.loaded {
  opacity: 1;
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--tx-dark); }
::-webkit-scrollbar-thumb { background: var(--tx-card); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--tx-pink); }

/* === Back to Top === */
.tx-back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--tx-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--tx-transition);
  z-index: 999;
  border: none;
  box-shadow: var(--tx-shadow);
}
.tx-back-top.visible {
  opacity: 1;
  visibility: visible;
}
.tx-back-top:hover {
  transform: translateY(-3px);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .tx-video-grid { grid-template-columns: repeat(3, 1fr); }
  .tx-footer-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-howto-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  html { font-size: 15px; }
  .tx-header-inner { height: 60px; }
  .tx-search-bar { margin-top: 60px; }
  .tx-breadcrumb { margin-top: 60px; }
  
  .tx-menu-toggle { display: flex; }
  .tx-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(15, 15, 26, 0.98);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--tx-transition);
    border-bottom: 1px solid var(--tx-border);
  }
  .tx-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .tx-nav a {
    width: 100%;
    padding: 12px 16px;
  }
  
  .tx-hero { min-height: 500px; }
  .tx-hero-content h1 { font-size: 2rem; }
  .tx-hero-stats { gap: 20px; }
  .tx-hero-stat .num { font-size: 1.5rem; }
  
  .tx-video-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .tx-feature-grid { grid-template-columns: 1fr; }
  .tx-expert-grid { grid-template-columns: 1fr; }
  .tx-review-grid { grid-template-columns: 1fr; }
  .tx-partner-grid { grid-template-columns: repeat(3, 1fr); }
  .tx-contact-grid { grid-template-columns: 1fr; }
  .tx-howto-steps { grid-template-columns: 1fr; }
  
  .tx-footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .tx-footer-bottom { flex-direction: column; text-align: center; }
  
  .tx-section { padding: 50px 0; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
}

@media (max-width: 480px) {
  .tx-video-grid { grid-template-columns: 1fr; }
  .tx-partner-grid { grid-template-columns: repeat(2, 1fr); }
  .tx-search-form { flex-direction: column; }
  .tx-search-btn { width: 100%; justify-content: center; }
}

/* === Animation === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.tx-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.tx-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === MCP Service Frontend (Decorative) === */
.tx-mcp-widget {
  background: var(--tx-card);
  border-radius: var(--tx-radius);
  padding: 16px;
  border: 1px solid var(--tx-border);
  text-align: center;
  margin-top: 20px;
}
.tx-mcp-widget .status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--tx-text-muted);
}
.tx-mcp-widget .status-dot {
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* === Featured Video Player (H5 Video) === */
.tx-featured-video-wrap {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  align-items: start;
}
.tx-video-player-card {
  position: relative;
  border-radius: var(--tx-radius);
  overflow: hidden;
  background: #000;
  aspect-ratio: 16/9;
}
.tx-video-player-card .tx-h5-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.tx-video-player-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(0,0,0,0.35);
  cursor: pointer;
  transition: var(--tx-transition);
}
.tx-video-player-overlay:hover {
  background: rgba(0,0,0,0.5);
}
.tx-video-play-big {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(232, 67, 111, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--tx-transition);
}
.tx-video-play-big .tx-video-play-icon {
  border-style: solid;
  border-width: 14px 0 14px 24px;
  border-color: transparent transparent transparent #fff;
}
.tx-video-player-overlay:hover .tx-video-play-big {
  transform: scale(1.1);
  background: rgba(232, 67, 111, 1);
}
.tx-video-player-title {
  margin-top: 16px;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 600;
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
  text-align: center;
  padding: 0 20px;
}
.tx-featured-video-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.tx-featured-video-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border-radius: var(--tx-radius-sm);
  background: var(--tx-card);
  cursor: pointer;
  transition: var(--tx-transition);
  border: 2px solid transparent;
}
.tx-featured-video-item:hover,
.tx-featured-video-item.active {
  background: var(--tx-card-hover);
  border-color: var(--tx-pink);
}
.tx-featured-video-item img {
  width: 100px;
  height: 60px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}
.tx-featured-video-item h4 {
  font-size: 0.85rem;
  margin-bottom: 4px;
  color: var(--tx-text);
  line-height: 1.3;
}
.tx-featured-video-item span {
  font-size: 0.75rem;
  color: var(--tx-text-muted);
}
@media (max-width: 768px) {
  .tx-featured-video-wrap {
    grid-template-columns: 1fr;
  }
  .tx-featured-video-list {
    flex-direction: row;
    overflow-x: auto;
    gap: 10px;
    padding-bottom: 10px;
  }
  .tx-featured-video-item {
    min-width: 240px;
    flex-shrink: 0;
  }
}