* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --txsp-primary: #ff6b9d;
    --txsp-primary-dark: #e5568a;
    --txsp-secondary: #4a90e2;
    --txsp-accent: #ffd93d;
    --txsp-dark: #1a1a2e;
    --txsp-light: #ffffff;
    --txsp-gray-50: #f9fafb;
    --txsp-gray-100: #f3f4f6;
    --txsp-gray-200: #e5e7eb;
    --txsp-gray-300: #d1d5db;
    --txsp-gray-600: #4b5563;
    --txsp-gray-800: #1f2937;
    --txsp-shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --txsp-shadow-md: 0 4px 16px rgba(0,0,0,0.1);
    --txsp-shadow-lg: 0 8px 32px rgba(0,0,0,0.15);
    --txsp-radius: 12px;
    --txsp-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--txsp-gray-800);
    background: var(--txsp-light);
    overflow-x: hidden;
}

.txsp-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.txsp-header-section {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--txsp-shadow-sm);
    z-index: 1000;
    transition: var(--txsp-transition);
}

.txsp-header-section.scrolled {
    box-shadow: var(--txsp-shadow-md);
}

.txsp-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.txsp-logo-wrapper h1 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--txsp-primary), var(--txsp-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.txsp-logo-wrapper h1 a {
    text-decoration: none;
    color: inherit;
}

.txsp-nav-menu {
    display: flex;
    gap: 32px;
    align-items: center;
}

.txsp-nav-menu a {
    text-decoration: none;
    color: var(--txsp-gray-600);
    font-weight: 500;
    font-size: 15px;
    transition: var(--txsp-transition);
    position: relative;
}

.txsp-nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--txsp-primary);
    transition: var(--txsp-transition);
}

.txsp-nav-menu a:hover {
    color: var(--txsp-primary);
}

.txsp-nav-menu a:hover::after {
    width: 100%;
}

.txsp-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.txsp-mobile-toggle span {
    width: 28px;
    height: 3px;
    background: var(--txsp-primary);
    border-radius: 2px;
    transition: var(--txsp-transition);
}

.txsp-hero-banner {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    margin-top: 80px;
    overflow: hidden;
}

.txsp-hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.txsp-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.9), rgba(74, 144, 226, 0.8));
    z-index: 1;
}

.txsp-hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.txsp-hero-content {
    position: relative;
    z-index: 2;
    color: var(--txsp-light);
    max-width: 700px;
    animation: fadeInUp 1s ease-out;
}

.txsp-hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.txsp-hero-subtitle {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
    opacity: 0.95;
}

.txsp-hero-description {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.9;
}

.txsp-hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.txsp-btn-primary,
.txsp-btn-secondary,
.txsp-btn-outline,
.txsp-btn-light {
    display: inline-block;
    padding: 16px 40px;
    border-radius: var(--txsp-radius);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--txsp-transition);
    cursor: pointer;
    border: none;
}

.txsp-btn-primary {
    background: var(--txsp-light);
    color: var(--txsp-primary);
    box-shadow: var(--txsp-shadow-md);
}

.txsp-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--txsp-shadow-lg);
}

.txsp-btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--txsp-light);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.txsp-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.txsp-btn-outline {
    background: transparent;
    color: var(--txsp-primary);
    border: 2px solid var(--txsp-primary);
}

.txsp-btn-outline:hover {
    background: var(--txsp-primary);
    color: var(--txsp-light);
}

.txsp-btn-light {
    background: var(--txsp-light);
    color: var(--txsp-gray-800);
}

.txsp-btn-light:hover {
    background: var(--txsp-gray-100);
}

.txsp-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.txsp-scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    position: relative;
}

.txsp-scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--txsp-light);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 0; transform: translateX(-50%) translateY(0); }
    50% { opacity: 1; transform: translateX(-50%) translateY(8px); }
}

.txsp-features-section,
.txsp-content-showcase,
.txsp-testimonials-section {
    padding: 100px 0;
}

.txsp-section-header {
    text-align: center;
    margin-bottom: 60px;
}

.txsp-section-header h2 {
    font-size: 42px;
    font-weight: 700;
    color: var(--txsp-dark);
    margin-bottom: 16px;
}

.txsp-section-header p {
    font-size: 18px;
    color: var(--txsp-gray-600);
}

.txsp-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.txsp-feature-card {
    background: var(--txsp-light);
    padding: 40px 32px;
    border-radius: var(--txsp-radius);
    box-shadow: var(--txsp-shadow-sm);
    transition: var(--txsp-transition);
    text-align: center;
}

.txsp-feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--txsp-shadow-lg);
}

.txsp-feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--txsp-primary), var(--txsp-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.txsp-feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.txsp-feature-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--txsp-dark);
}

.txsp-feature-card p {
    font-size: 15px;
    color: var(--txsp-gray-600);
    line-height: 1.8;
}

.txsp-video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
}

.txsp-video-item {
    background: var(--txsp-light);
    border-radius: var(--txsp-radius);
    overflow: hidden;
    box-shadow: var(--txsp-shadow-sm);
    transition: var(--txsp-transition);
    cursor: pointer;
}

.txsp-video-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--txsp-shadow-md);
}

.txsp-video-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    overflow: hidden;
}

.txsp-video-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--txsp-transition);
}

.txsp-video-item:hover .txsp-video-thumbnail img {
    transform: scale(1.05);
}

.txsp-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--txsp-transition);
}

.txsp-video-item:hover .txsp-play-overlay {
    opacity: 1;
}

.txsp-play-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--txsp-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.txsp-play-icon::before {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 12px 0 12px 20px;
    border-color: transparent transparent transparent var(--txsp-light);
    margin-left: 4px;
}

.txsp-video-duration {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.8);
    color: var(--txsp-light);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
}

.txsp-video-info {
    padding: 20px;
}

.txsp-video-info h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--txsp-dark);
    line-height: 1.4;
}

.txsp-video-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--txsp-gray-600);
}

.txsp-load-more {
    text-align: center;
}

.txsp-stats-section {
    background: linear-gradient(135deg, var(--txsp-primary), var(--txsp-secondary));
    padding: 80px 0;
    color: var(--txsp-light);
}

.txsp-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    text-align: center;
}

.txsp-stat-number {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 8px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.txsp-stat-label {
    font-size: 16px;
    opacity: 0.9;
}

.txsp-cta-section {
    background: var(--txsp-gray-50);
    padding: 100px 0;
}

.txsp-cta-section .txsp-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.txsp-cta-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--txsp-dark);
}

.txsp-cta-content p {
    font-size: 18px;
    color: var(--txsp-gray-600);
    margin-bottom: 32px;
    line-height: 1.8;
}

.txsp-cta-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.txsp-cta-image {
    border-radius: var(--txsp-radius);
    overflow: hidden;
    box-shadow: var(--txsp-shadow-lg);
}

.txsp-cta-image img {
    width: 100%;
    height: auto;
    display: block;
}

.txsp-testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.txsp-testimonial-card {
    background: var(--txsp-light);
    padding: 32px;
    border-radius: var(--txsp-radius);
    box-shadow: var(--txsp-shadow-sm);
    transition: var(--txsp-transition);
}

.txsp-testimonial-card:hover {
    box-shadow: var(--txsp-shadow-md);
}

.txsp-testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 20px;
    border: 3px solid var(--txsp-primary);
}

.txsp-testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.txsp-testimonial-text {
    font-size: 15px;
    line-height: 1.8;
    color: var(--txsp-gray-600);
    margin-bottom: 20px;
    font-style: italic;
}

.txsp-testimonial-author strong {
    display: block;
    font-size: 16px;
    color: var(--txsp-dark);
    margin-bottom: 4px;
}

.txsp-testimonial-author span {
    font-size: 14px;
    color: var(--txsp-gray-600);
}

.txsp-footer-section {
    background: var(--txsp-dark);
    color: var(--txsp-light);
    padding: 60px 0 30px;
}

.txsp-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.txsp-footer-about h3 {
    font-size: 24px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--txsp-primary), var(--txsp-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.txsp-footer-about p {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.8;
    margin-bottom: 20px;
}

.txsp-footer-social {
    display: flex;
    gap: 16px;
}

.txsp-footer-social a {
    color: var(--txsp-light);
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: var(--txsp-transition);
}

.txsp-footer-social a:hover {
    opacity: 1;
    color: var(--txsp-primary);
}

.txsp-footer-links h4 {
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: 600;
}

.txsp-footer-links ul {
    list-style: none;
}

.txsp-footer-links ul li {
    margin-bottom: 12px;
}

.txsp-footer-links ul li a {
    color: var(--txsp-light);
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: var(--txsp-transition);
}

.txsp-footer-links ul li a:hover {
    opacity: 1;
    color: var(--txsp-primary);
}

.txsp-footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.txsp-footer-bottom p {
    font-size: 14px;
    opacity: 0.7;
    margin: 8px 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 968px) {
    .txsp-nav-menu {
        display: none;
    }

    .txsp-mobile-toggle {
        display: flex;
    }

    .txsp-hero-title {
        font-size: 42px;
    }

    .txsp-hero-subtitle {
        font-size: 22px;
    }

    .txsp-video-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }

    .txsp-cta-section .txsp-container {
        grid-template-columns: 1fr;
    }

    .txsp-footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 640px) {
    .txsp-hero-title {
        font-size: 32px;
    }

    .txsp-hero-subtitle {
        font-size: 18px;
    }

    .txsp-section-header h2 {
        font-size: 32px;
    }

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

    .txsp-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}