/* Base Reset & Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

body {
    background-color: #050505;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(245, 158, 11, 0.08), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(59, 130, 246, 0.08), transparent 25%);
    background-size: 200% 200%;
    animation: gradientBG 15s ease infinite;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

.btn {
    display: inline-block;
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    box-sizing: border-box;
}

.btn-primary {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #fff;
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Glassmorphism Cards */
.glass-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 24px;
    padding: 2.5rem;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), background 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(245, 158, 11, 0.2);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(5, 5, 5, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
}

.logo span {
    color: #f59e0b; /* Amber/Rice color */
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: #e2e8f0;
    font-weight: 600;
    transition: color 0.3s ease;
    font-size: 1.05rem;
}

.nav-links a:hover {
    color: #f59e0b;
}

.nav-btn {
    padding: 10px 24px;
    font-size: 1rem;
    border-radius: 50px;
}

/* Hero Section */
.hero {
    padding: 6rem 0 7rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    position: relative;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.15;
    background: linear-gradient(to right, #f59e0b, #fef08a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: #a1a1aa;
    margin-bottom: 3rem;
    line-height: 1.8;
}

.hero-visual {
    flex: 1;
    position: relative;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.glow-orb {
    position: absolute;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulseOrb 4s ease-in-out infinite;
    z-index: 0;
}

@keyframes pulseOrb {
    0% { transform: scale(0.8); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.9; }
    100% { transform: scale(0.8); opacity: 0.5; }
}

.floating-card {
    position: absolute;
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(245, 158, 11, 0.3);
    padding: 1.2rem 1.8rem;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: #fff;
    z-index: 1;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: floatCard 6s ease-in-out infinite;
}

@keyframes floatCard {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.card-1 { top: 15%; left: 0%; animation-delay: 0s; }
.card-2 { top: 50%; right: -5%; animation-delay: 1.5s; }
.card-3 { bottom: 10%; left: 10%; animation-delay: 3s; }

.pulse-ring {
    width: 14px;
    height: 14px;
    background: #10b981;
    border-radius: 50%;
    position: relative;
}

.pulse-ring::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0; left: 0;
    background: #10b981;
    border-radius: 50%;
    animation: ring 2s cubic-bezier(0.25, 0.8, 0.25, 1) infinite;
}

@keyframes ring {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(3.5); opacity: 0; }
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 6rem;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: #f59e0b;
}

.glass-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #f8fafc;
}

.glass-card p {
    color: #94a3b8;
    line-height: 1.7;
}

/* Streaming & AI */
.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-bottom: 6rem;
}

.support-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1.5rem 2rem;
}

.support-icon {
    font-size: 2.2rem;
}

/* Pricing */
.pricing-table {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 6rem;
    flex-wrap: wrap;
}

.price-card {
    flex: 1;
    min-width: 320px;
    max-width: 360px;
    text-align: center;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.price-card.popular {
    border-color: rgba(245, 158, 11, 0.4);
    background: rgba(245, 158, 11, 0.05);
}

.price-card.popular::before {
    content: '最受欢迎';
    position: absolute;
    top: 25px;
    right: -40px;
    background: linear-gradient(90deg, #f59e0b, #ef4444);
    color: #fff;
    padding: 8px 45px;
    transform: rotate(45deg);
    font-size: 0.9rem;
    font-weight: 800;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 1.5rem 0;
    color: #f59e0b;
    display: flex;
    align-items: baseline;
    justify-content: center;
}

.price span {
    font-size: 1.1rem;
    color: #94a3b8;
    font-weight: 400;
    margin-left: 5px;
}

.price-features {
    text-align: left;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.price-features li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: #e2e8f0;
}

.price-features li::before {
    content: '✓';
    color: #10b981;
    font-weight: bold;
    font-size: 1.2rem;
}

/* Testimonials */
.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 6rem;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: 1.2rem;
}

.avatar {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3f3f46, #18181b);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    border: 2px solid rgba(255,255,255,0.1);
}

.stars { color: #f59e0b; letter-spacing: 2px; }

/* SEO Articles */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 6rem;
}

.article-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.article-img {
    height: 160px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.article-content {
    padding: 1.5rem;
}

.article-content h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #f8fafc;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.article-card:hover .article-content h3 {
    color: #f59e0b;
}

.article-content p {
    font-size: 0.95rem;
    color: #94a3b8;
    line-height: 1.6;
}

/* FAQ */
.faq-list {
    max-width: 850px;
    margin: 0 auto 6rem;
}

.faq-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    margin-bottom: 1.2rem;
    padding: 1.8rem;
    transition: background 0.3s ease;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.faq-q {
    font-weight: 600;
    font-size: 1.2rem;
    color: #f8fafc;
}

/* Footer */
footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 4rem 0 3rem;
    text-align: center;
    margin-top: 5rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: #94a3b8;
    transition: color 0.3s ease;
    font-weight: 500;
}

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

/* Media Queries */
@media (max-width: 768px) {
    .hero { flex-direction: column; text-align: center; padding-top: 4rem; }
    .hero-content h1 { font-size: 2.8rem; }
    .hero-content p { font-size: 1.1rem; padding: 0 15px; margin: 0 auto 3rem; }
    .hero-buttons { justify-content: center; }
    .hero-visual { height: 350px; width: 100%; }
    .floating-card { padding: 1rem 1.2rem; font-size: 0.95rem; }
    .card-1 { left: 5%; }
    .card-2 { right: 5%; }
    .card-3 { left: 15%; bottom: 5%; }
    .nav-links { display: none; }
    .nav-btn { display: none; }
    
    .section-title { font-size: 2.2rem; margin-bottom: 2rem; }
    
    .pricing-table { flex-direction: column; align-items: center; }
    .price-card { width: 100%; max-width: 400px; }
    
    .features-grid, .support-grid, .testimonials {
        grid-template-columns: 1fr;
    }
    
    .btn { 
        padding: 18px 30px; /* Enhanced touch target */
        width: 100%; 
        font-size: 1.2rem;
    }
    
    .footer-links { gap: 1.5rem; }
}