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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: #0f1419;
    color: #e5e7eb;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(249, 115, 22, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    box-shadow: 0 10px 40px rgba(249, 115, 22, 0.15);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.logo-icon {
    width: 50px;
    height: 50px;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.logo-text h1 {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: #9ca3af;
    font-weight: 500;
    display: block;
    margin-top: -4px;
}

.main-nav {
    display: none;
    align-items: center;
    gap: 0.5rem;
}

@media (min-width: 1024px) {
    .main-nav {
        display: flex;
    }
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    color: #9ca3af;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link svg {
    width: 18px;
    height: 18px;
}

.nav-link:hover {
    background: rgba(249, 115, 22, 0.1);
    color: #f59e0b;
    transform: translateY(-2px);
}

.nav-link.active {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    box-shadow: 0 10px 25px rgba(249, 115, 22, 0.3);
}

.nav-link.active svg {
    color: white;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-btn,
.user-btn {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: none;
    background: rgba(249, 115, 22, 0.1);
    color: #f59e0b;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn svg,
.user-btn svg {
    width: 20px;
    height: 20px;
}

.search-btn:hover,
.user-btn:hover {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(249, 115, 22, 0.3);
}

.mobile-menu-btn {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: none;
    background: rgba(249, 115, 22, 0.1);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: #f59e0b;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.search-panel {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 20, 25, 0.98);
    backdrop-filter: blur(20px);
    padding: 2rem;
    border-bottom: 1px solid rgba(249, 115, 22, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.search-panel.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.search-panel-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    gap: 1rem;
}

.search-input {
    flex: 1;
    padding: 1rem 1.5rem;
    background: rgba(249, 115, 22, 0.05);
    border: 2px solid rgba(249, 115, 22, 0.2);
    border-radius: 16px;
    color: white;
    font-size: 1.1rem;
    outline: none;
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: #f59e0b;
    box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.1);
}

.search-input::placeholder {
    color: #6b7280;
}

.search-submit {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    border: none;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-submit:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(249, 115, 22, 0.4);
}

.search-submit svg {
    width: 24px;
    height: 24px;
}

.hot-keywords {
    max-width: 800px;
    margin: 1.5rem auto 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.keyword-label {
    font-size: 0.9rem;
    color: #9ca3af;
    font-weight: 600;
}

.keyword {
    padding: 0.5rem 1rem;
    background: rgba(249, 115, 22, 0.1);
    border-radius: 20px;
    font-size: 0.9rem;
    color: #f59e0b;
    text-decoration: none;
    transition: all 0.3s ease;
}

.keyword:hover {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    transform: translateY(-2px);
}

.mobile-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 20, 25, 0.98);
    backdrop-filter: blur(20px);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    overflow-y: auto;
}

.mobile-menu.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
}

.mobile-nav {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-radius: 16px;
    font-weight: 600;
    font-size: 1.1rem;
    color: #9ca3af;
    text-decoration: none;
    transition: all 0.3s ease;
}

.mobile-nav-link svg {
    width: 24px;
    height: 24px;
}

.mobile-nav-link:hover {
    background: rgba(249, 115, 22, 0.1);
    color: #f59e0b;
}

.mobile-nav-link.active {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
}

.main-content {
    padding-top: 80px;
}

.hero-banner {
    position: relative;
    min-height: 700px;
    background: linear-gradient(135deg, #1e293b 0%, #0f1419 50%, #1e293b 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(249, 115, 22, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(239, 68, 68, 0.15) 0%, transparent 50%);
    animation: gradient-shift 10s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.banner-slide {
    text-align: center;
    position: relative;
    z-index: 2;
    padding: 3rem 2rem;
}

.banner-content {
    max-width: 900px;
    margin: 0 auto;
}

.banner-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(249, 115, 22, 0.2);
    border: 1px solid rgba(249, 115, 22, 0.3);
    border-radius: 30px;
    color: #fbbf24;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.banner-title {
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #ef4444 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

@media (max-width: 768px) {
    .banner-title {
        font-size: 2.5rem;
    }
}

.banner-desc {
    font-size: 1.25rem;
    color: #d1d5db;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.banner-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
    padding: 1rem 2.5rem;
    border-radius: 16px;
    font-weight: 700;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-primary {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(249, 115, 22, 0.5);
}

.btn-primary svg {
    width: 20px;
    height: 20px;
}

.btn-secondary {
    background: rgba(249, 115, 22, 0.1);
    border: 2px solid rgba(249, 115, 22, 0.3);
    color: #f59e0b;
}

.btn-secondary:hover {
    background: rgba(249, 115, 22, 0.2);
    border-color: #f59e0b;
    transform: translateY(-3px);
}

.banner-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to top, #0f1419 0%, transparent 100%);
    z-index: 1;
}

.content-section {
    padding: 5rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 3rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-title svg {
    width: 32px;
    height: 32px;
    color: #f59e0b;
}

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-more {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(249, 115, 22, 0.1);
    border-radius: 12px;
    color: #f59e0b;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.section-more:hover {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    transform: translateY(-2px);
}

.section-more svg {
    width: 18px;
    height: 18px;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.video-card {
    background: #1a1f2e;
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(249, 115, 22, 0.1);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(249, 115, 22, 0.2);
    border-color: rgba(249, 115, 22, 0.3);
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: linear-gradient(135deg, #1e293b, #0f1419);
}

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

.video-card:hover .video-thumbnail img {
    transform: scale(1.1);
}

.video-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.4rem 0.9rem;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    z-index: 2;
}

.video-duration {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    padding: 0.4rem 0.9rem;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    color: white;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
}

.video-play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

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

.play-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
}

.video-card:hover .play-icon {
    transform: scale(1.1);
}

.play-icon svg {
    width: 28px;
    height: 28px;
}

.video-info {
    padding: 1.5rem;
}

.video-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.video-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
    color: #9ca3af;
}

.features-section {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, #1e293b 0%, #0f1419 50%, #1e293b 100%);
    position: relative;
    overflow: hidden;
}

.features-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 30% 30%, rgba(249, 115, 22, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(239, 68, 68, 0.1) 0%, transparent 50%);
}

.features-container {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.features-title {
    font-size: 3rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 4rem;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #ef4444 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background: rgba(26, 31, 46, 0.5);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid rgba(249, 115, 22, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(249, 115, 22, 0.3);
    box-shadow: 0 20px 40px rgba(249, 115, 22, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: rotateY(360deg);
}

.feature-icon svg {
    width: 40px;
    height: 40px;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.feature-card p {
    font-size: 1rem;
    color: #9ca3af;
    line-height: 1.6;
}

.footer {
    background: #0a0e14;
    border-top: 1px solid rgba(249, 115, 22, 0.1);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.footer-section a:hover {
    color: #f59e0b;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(249, 115, 22, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #f59e0b;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(249, 115, 22, 0.1);
    text-align: center;
    color: #6b7280;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: #f59e0b;
}

.footer-seo {
    margin-top: 1rem;
    line-height: 1.6;
    color: #6b7280;
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 1rem;
        height: 70px;
    }

    .logo-text h1 {
        font-size: 1.4rem;
    }

    .main-content {
        padding-top: 70px;
    }

    .mobile-menu {
        top: 70px;
    }

    .section-title h2 {
        font-size: 1.75rem;
    }

    .features-title {
        font-size: 2rem;
    }

    .content-section {
        padding: 3rem 1rem;
    }
}