/* ============================================
   小马拉大车 - 原创样式表
   品牌定位：影视传媒公司 + 视频社区
   配色方案：糖心粉 + 暖金 + 深夜蓝
   ============================================ */

/* CSS Variables */
:root {
  --tx-pink: #FF6B9D;
  --tx-rose: #C44569;
  --tx-gold: #F8B500;
  --tx-bg-light: #FFF5F7;
  --tx-dark: #1A1A2E;
  --tx-text: #2D2D3A;
  --tx-text-light: #8E8EA0;
  --tx-white: #FFFFFF;
  --tx-gradient: linear-gradient(135deg, #FF6B9D 0%, #F8B500 100%);
  --tx-gradient-dark: linear-gradient(135deg, #C44569 0%, #1A1A2E 100%);
  --tx-shadow: 0 4px 20px rgba(255, 107, 157, 0.15);
  --tx-shadow-hover: 0 8px 30px rgba(255, 107, 157, 0.25);
  --tx-radius: 12px;
  --tx-radius-sm: 8px;
  --tx-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--tx-text);
  background-color: var(--tx-bg-light);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: var(--tx-pink);
  text-decoration: none;
  transition: var(--tx-transition);
}

a:hover {
  color: var(--tx-rose);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============ Header / Navigation ============ */
.tx-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
  transition: var(--tx-transition);
}

.tx-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.tx-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--tx-text);
}

.tx-logo img {
  height: 42px;
  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: 6px;
}

.tx-nav a {
  padding: 8px 16px;
  border-radius: var(--tx-radius-sm);
  color: var(--tx-text);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--tx-transition);
  white-space: nowrap;
}

.tx-nav a:hover,
.tx-nav a.active {
  background: var(--tx-gradient);
  color: var(--tx-white);
  -webkit-text-fill-color: unset;
}

.tx-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.tx-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--tx-text);
  transition: var(--tx-transition);
  border-radius: 2px;
}

/* ============ Search Bar ============ */
.tx-search-bar {
  background: var(--tx-white);
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 107, 157, 0.1);
  margin-top: 70px;
}

.tx-search-wrap {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  display: flex;
  align-items: center;
}

.tx-search-wrap input {
  width: 100%;
  padding: 12px 50px 12px 20px;
  border: 2px solid rgba(255, 107, 157, 0.3);
  border-radius: 50px;
  font-size: 0.95rem;
  outline: none;
  transition: var(--tx-transition);
  background: var(--tx-bg-light);
}

.tx-search-wrap input:focus {
  border-color: var(--tx-pink);
  box-shadow: 0 0 0 4px rgba(255, 107, 157, 0.1);
}

.tx-search-wrap input::placeholder {
  color: var(--tx-text-light);
}

.tx-search-btn {
  position: absolute;
  right: 6px;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--tx-gradient);
  color: var(--tx-white);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--tx-transition);
}

.tx-search-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--tx-shadow);
}

/* ============ Hero Banner ============ */
.tx-hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--tx-gradient-dark);
}

.tx-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.tx-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.tx-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 26, 46, 0.85) 0%, rgba(196, 69, 105, 0.6) 100%);
  z-index: 2;
}

.tx-hero-content {
  position: relative;
  z-index: 3;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 20px;
  color: var(--tx-white);
}

.tx-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.2;
}

.tx-hero h1 em {
  font-style: normal;
  background: var(--tx-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tx-hero h2 {
  font-size: 1.3rem;
  font-weight: 400;
  opacity: 0.9;
  margin-bottom: 30px;
  max-width: 600px;
}

.tx-hero-stats {
  display: flex;
  gap: 40px;
  margin-bottom: 30px;
}

.tx-hero-stats .stat-item {
  text-align: center;
}

.tx-hero-stats .stat-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--tx-gold);
}

.tx-hero-stats .stat-label {
  font-size: 0.85rem;
  opacity: 0.8;
}

.tx-hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============ Buttons ============ */
.tx-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--tx-transition);
  text-decoration: none;
}

.tx-btn-primary {
  background: var(--tx-gradient);
  color: var(--tx-white);
  box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4);
}

.tx-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 157, 0.5);
  color: var(--tx-white);
}

.tx-btn-outline {
  background: transparent;
  color: var(--tx-white);
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.tx-btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--tx-white);
  color: var(--tx-white);
}

/* ============ Section Common ============ */
.tx-section {
  padding: 70px 0;
}

.tx-section-dark {
  background: var(--tx-dark);
  color: var(--tx-white);
}

.tx-section-alt {
  background: var(--tx-white);
}

.tx-section-title {
  text-align: center;
  margin-bottom: 50px;
}

.tx-section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--tx-text);
}

.tx-section-dark .tx-section-title h2 {
  color: var(--tx-white);
}

.tx-section-title h2 em {
  font-style: normal;
  color: var(--tx-pink);
}

.tx-section-title p {
  font-size: 1.05rem;
  color: var(--tx-text-light);
  max-width: 600px;
  margin: 0 auto;
}

.tx-section-dark .tx-section-title p {
  color: rgba(255, 255, 255, 0.7);
}

/* ============ Video Cards Grid ============ */
.tx-video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.tx-video-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  overflow: hidden;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  cursor: pointer;
}

.tx-video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--tx-shadow-hover);
}

.tx-video-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
  background: #eee;
}

.tx-video-thumb img {
  position: absolute;
  inset: 0;
  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(0, 0, 0, 0.3);
  opacity: 0;
  transition: var(--tx-transition);
}

.tx-video-card:hover .tx-video-play {
  opacity: 1;
}

.tx-video-play-icon {
  width: 60px;
  height: 60px;
  background: var(--tx-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(255, 107, 157, 0.5);
  transition: var(--tx-transition);
}

.tx-video-play-icon::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent white;
  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, 0.75);
  color: var(--tx-white);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}

.tx-video-info {
  padding: 16px;
}

.tx-video-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tx-video-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--tx-text-light);
}

.tx-video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.tx-video-tags {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.tx-tag {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  background: rgba(255, 107, 157, 0.1);
  color: var(--tx-pink);
  font-weight: 500;
}

/* ============ Feature Modules ============ */
.tx-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.tx-feature-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  padding: 30px 24px;
  text-align: center;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  border: 1px solid rgba(255, 107, 157, 0.08);
}

.tx-feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow-hover);
  border-color: rgba(255, 107, 157, 0.2);
}

.tx-feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--tx-gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--tx-white);
}

.tx-feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.tx-feature-card p {
  font-size: 0.9rem;
  color: var(--tx-text-light);
  line-height: 1.6;
}

/* ============ Expert Section ============ */
.tx-expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.tx-expert-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  overflow: hidden;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  text-align: center;
}

.tx-expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tx-shadow-hover);
}

.tx-expert-avatar {
  width: 100%;
  height: 260px;
  overflow: hidden;
}

.tx-expert-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--tx-transition);
}

.tx-expert-card:hover .tx-expert-avatar img {
  transform: scale(1.05);
}

.tx-expert-info {
  padding: 20px;
}

.tx-expert-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.tx-expert-info .role {
  color: var(--tx-pink);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 10px;
}

.tx-expert-info p {
  font-size: 0.85rem;
  color: var(--tx-text-light);
  margin-bottom: 12px;
}

.tx-expert-info .awards {
  font-size: 0.8rem;
  color: var(--tx-gold);
  margin-bottom: 14px;
}

.tx-expert-btns {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.tx-expert-btns a {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
}

.tx-expert-btns .btn-contact {
  background: var(--tx-gradient);
  color: var(--tx-white);
}

.tx-expert-btns .btn-works {
  border: 1px solid var(--tx-pink);
  color: var(--tx-pink);
}

/* ============ Partners Logo Wall ============ */
.tx-partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  align-items: center;
}

.tx-partner-item {
  background: var(--tx-white);
  padding: 20px 30px;
  border-radius: var(--tx-radius-sm);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
  font-size: 1rem;
  font-weight: 600;
  color: var(--tx-text-light);
  transition: var(--tx-transition);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.tx-partner-item:hover {
  color: var(--tx-pink);
  border-color: var(--tx-pink);
  transform: translateY(-2px);
}

/* ============ Reviews ============ */
.tx-reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.tx-review-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  padding: 24px;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
}

.tx-review-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--tx-shadow-hover);
}

.tx-review-stars {
  color: var(--tx-gold);
  font-size: 1rem;
  margin-bottom: 12px;
}

.tx-review-text {
  font-size: 0.92rem;
  color: var(--tx-text);
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}

.tx-review-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tx-review-author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--tx-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tx-white);
  font-weight: 700;
  font-size: 0.9rem;
}

.tx-review-author-info .name {
  font-weight: 600;
  font-size: 0.9rem;
}

.tx-review-author-info .date {
  font-size: 0.8rem;
  color: var(--tx-text-light);
}

/* ============ FAQ ============ */
.tx-faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.tx-faq-item {
  background: var(--tx-white);
  border-radius: var(--tx-radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(255, 107, 157, 0.08);
}

.tx-faq-question {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--tx-transition);
}

.tx-faq-question:hover {
  color: var(--tx-pink);
}

.tx-faq-question .arrow {
  font-size: 1.2rem;
  transition: var(--tx-transition);
  color: var(--tx-pink);
}

.tx-faq-item.open .tx-faq-question .arrow {
  transform: rotate(180deg);
}

.tx-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.tx-faq-item.open .tx-faq-answer {
  max-height: 300px;
}

.tx-faq-answer p {
  padding: 0 24px 18px;
  font-size: 0.92rem;
  color: var(--tx-text-light);
  line-height: 1.7;
}

/* ============ Contact Section ============ */
.tx-contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.tx-contact-card {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--tx-radius);
  padding: 24px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--tx-transition);
}

.tx-contact-card:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-3px);
}

.tx-contact-card .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.tx-contact-card h4 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.tx-contact-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ============ How-To Guide ============ */
.tx-howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.tx-howto-step {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  padding: 30px 24px;
  text-align: center;
  box-shadow: var(--tx-shadow);
  position: relative;
  counter-increment: step;
}

.tx-howto-step::before {
  content: counter(step);
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 32px;
  background: var(--tx-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tx-white);
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 32px;
}

.tx-howto-step h4 {
  font-size: 1.05rem;
  margin: 10px 0 8px;
}

.tx-howto-step p {
  font-size: 0.88rem;
  color: var(--tx-text-light);
}

/* ============ Social Share ============ */
.tx-share-bar {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 30px;
}

.tx-share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--tx-white);
  transition: var(--tx-transition);
  cursor: pointer;
}

.tx-share-btn:hover {
  transform: translateY(-2px);
  color: var(--tx-white);
}

.tx-share-wechat { background: #07C160; }
.tx-share-weibo { background: #E6162D; }
.tx-share-douyin { background: #161823; }
.tx-share-bilibili { background: #00A1D6; }

/* ============ Footer ============ */
.tx-footer {
  background: var(--tx-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 50px 0 0;
}

.tx-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tx-footer-brand .tx-logo {
  margin-bottom: 16px;
}

.tx-footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.tx-footer h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--tx-white);
}

.tx-footer-links {
  list-style: none;
}

.tx-footer-links li {
  margin-bottom: 8px;
}

.tx-footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: var(--tx-transition);
}

.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: 8px;
  margin-bottom: 6px;
}

.tx-footer-qr-item span {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.5);
}

.tx-footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

.tx-footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

/* ============ Breadcrumb ============ */
.tx-breadcrumb {
  padding: 14px 0;
  font-size: 0.85rem;
  color: var(--tx-text-light);
  margin-top: 70px;
  background: var(--tx-white);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.tx-breadcrumb a {
  color: var(--tx-text-light);
}

.tx-breadcrumb a:hover {
  color: var(--tx-pink);
}

.tx-breadcrumb span {
  margin: 0 6px;
}

/* ============ Inner Page Content ============ */
.tx-page-hero {
  background: var(--tx-gradient-dark);
  padding: 60px 0 50px;
  text-align: center;
  color: var(--tx-white);
  margin-top: 70px;
}

.tx-page-hero h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.tx-page-hero p {
  font-size: 1.05rem;
  opacity: 0.85;
  max-width: 600px;
  margin: 0 auto;
}

.tx-content-area {
  padding: 50px 0;
}

.tx-content-area h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--tx-text);
}

.tx-content-area h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--tx-text);
}

.tx-content-area p {
  margin-bottom: 16px;
  line-height: 1.8;
}

/* ============ Lazy Load ============ */
/* Lazy load styles removed - using native loading="lazy" */

/* ============ Scroll Animations ============ */
.tx-fade-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .tx-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .tx-hamburger {
    display: flex;
  }

  .tx-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--tx-white);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-120%);
    transition: var(--tx-transition);
    z-index: 999;
  }

  .tx-nav.open {
    transform: translateY(0);
  }

  .tx-nav a {
    width: 100%;
    text-align: center;
    padding: 12px;
  }

  .tx-hero h1 {
    font-size: 2rem;
  }

  .tx-hero h2 {
    font-size: 1.05rem;
  }

  .tx-hero-stats {
    gap: 20px;
  }

  .tx-hero-stats .stat-num {
    font-size: 1.5rem;
  }

  .tx-video-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }

  .tx-section {
    padding: 50px 0;
  }

  .tx-section-title h2 {
    font-size: 1.6rem;
  }

  .tx-footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .tx-expert-grid {
    grid-template-columns: 1fr 1fr;
  }

  .tx-page-hero {
    padding: 40px 0 30px;
  }

  .tx-page-hero h1 {
    font-size: 1.7rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .tx-hero {
    min-height: 420px;
  }

  .tx-hero h1 {
    font-size: 1.7rem;
  }

  .tx-hero-btns {
    flex-direction: column;
  }

  .tx-hero-btns .tx-btn {
    width: 100%;
    justify-content: center;
  }

  .tx-video-grid {
    grid-template-columns: 1fr;
  }

  .tx-expert-grid {
    grid-template-columns: 1fr;
  }

  .tx-features-grid {
    grid-template-columns: 1fr;
  }

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

/* ============ Utility Classes ============ */
.text-center { text-align: center; }
.text-pink { color: var(--tx-pink); }
.text-gold { color: var(--tx-gold); }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }

/* ============ Pricing Section ============ */
.tx-pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.tx-pricing-card {
  background: var(--tx-white);
  border-radius: var(--tx-radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--tx-shadow);
  transition: var(--tx-transition);
  border: 2px solid rgba(0, 0, 0, 0.05);
  position: relative;
  display: flex;
  flex-direction: column;
}

.tx-pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--tx-shadow-hover);
}

.tx-pricing-featured {
  border-color: var(--tx-pink);
  transform: scale(1.03);
}

.tx-pricing-featured:hover {
  transform: scale(1.03) translateY(-6px);
}

.tx-pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--tx-gradient);
  color: var(--tx-white);
  padding: 4px 20px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
}

.tx-pricing-header {
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  margin-bottom: 20px;
}

.tx-pricing-header h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--tx-text);
}

.tx-pricing-price {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--tx-pink);
}

.tx-pricing-price span {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--tx-text-light);
}

.tx-pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  flex: 1;
}

.tx-pricing-features li {
  padding: 8px 0;
  font-size: 0.92rem;
  color: var(--tx-text);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.tx-pricing-features li:last-child {
  border-bottom: none;
}

.tx-pricing-card .tx-btn {
  margin-top: auto;
}

@media (max-width: 768px) {
  .tx-pricing-grid {
    grid-template-columns: 1fr;
  }
  .tx-pricing-featured {
    transform: none;
  }
  .tx-pricing-featured:hover {
    transform: translateY(-6px);
  }
}