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

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --primary-dark: #0a0e27;
    --primary-navy: #1a1f3a;
    --primary-blue: #2d3561;
    --accent-cyan: #00d4ff;
    --accent-teal: #00a6b8;
    --accent-mint: #64ffda;
    --text-light: #e8eaed;
    --text-muted: #9aa0a6;
    --surface-dark: #121212;
    --surface-elevated: #1e1e1e;
    --glass-bg: rgba(45, 53, 97, 0.1);
    --glow-cyan: rgba(0, 212, 255, 0.3);
    --glow-mint: rgba(100, 255, 218, 0.2);
}

* {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background: var(--primary-dark);
    overflow-x: hidden;
    padding-bottom: 80px;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Hero Section */
.hero {
    height: 100vh;
    background:url('../images/bgc.jpg')no-repeat center center;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-light);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwIiBoZWlnaHQ9IjEwMCIgdmlld0JveD0iMCAwIDEwMCAxMDAiIGZpbGw9Im5vbmUiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+CjxkZWZzPgo8cGF0dGVybiBpZD0iZ3JpZCIgd2lkdGg9IjEwMCIgaGVpZ2h0PSIxMDAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiPgo8cGF0aCBkPSJNIDEwMCAwIEwgMCAwIDAgMTAwIiBmaWxsPSJub25lIiBzdHJva2U9InJnYmEoMCwyMTIsyTU1LDAuMDUpIiBzdHJva2Utd2lkdGg9IjEiLz4KPC9wYXR0ZXJuPgo8L2RlZnM+CjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbGw9InVybCgjZ3JpZCkiIC8+Cjwvc3ZnPg==');
    opacity: 0.1;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-mint));
    border: 4px solid rgba(0, 212, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3em;
    font-weight: bold;
    color: var(--primary-dark);
    margin-bottom: 30px;
    box-shadow: 0 15px 40px var(--glow-cyan);
    animation: avatarFloat 3s ease-in-out infinite;
    position: relative;
}

.hero-avatar::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-mint), var(--accent-cyan));
    opacity: 0.3;
    animation: rotate 8s linear infinite;
    z-index: -1;
}

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

.hero-logo {
    font-size: 4em;
    font-weight: 800;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-mint));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    filter: drop-shadow(0 4px 8px var(--glow-cyan));
    animation: glow 3s ease-in-out infinite alternate;
}

@keyframes glow {
    from { filter: drop-shadow(0 4px 8px var(--glow-cyan)); }
    to { filter: drop-shadow(0 8px 16px var(--glow-mint)); }
}

.hero-tagline {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.3em;
    font-weight: 500;
    margin-bottom: 30px;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.9;
}

.hero-title {
    font-size: 3.5em;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--text-light), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideInUp 1s ease-out;
}

@keyframes slideInUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.hero-subtitle {
    font-size: 1.8em;
    font-weight: 300;
    margin-bottom: 40px;
    color: var(--accent-cyan);
    animation: slideInUp 1s ease-out 0.2s both;
}

.hero-cta {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-teal));
    color: var(--primary-dark);
    padding: 20px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.3em;
    font-weight: 600;
    box-shadow: 0 10px 30px var(--glow-cyan);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    animation: slideInUp 1s ease-out 0.4s both;
}

.hero-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

.hero-cta:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 20px 50px var(--glow-cyan);
}

.hero-cta:hover::before {
    left: 100%;
}

/* Stats Section */
.stats {
    background: linear-gradient(135deg, var(--primary-navy), var(--surface-dark));
    color: var(--text-light);
    padding: 80px 20px;
    text-align: center;
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, var(--glow-cyan), var(--glow-mint));
    opacity: 0.05;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 3.5em;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-mint));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    animation: countUp 2s ease-out;
}

@keyframes countUp {
    from { transform: scale(0.5); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.stat-label {
    font-size: 1.2em;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Features Section */
.features {
    padding: 100px 20px;
    background: var(--surface-dark);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
}

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

.section-title {
    text-align: center;
    font-size: 3em;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-light), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.3em;
    font-weight: 400;
    color: var(--text-muted);
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 80px;
}

.feature-card {
    background: linear-gradient(135deg, var(--surface-elevated), var(--primary-navy));
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--glow-cyan), var(--glow-mint));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 212, 255, 0.2);
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-icon {
    font-size: 4em;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.8em;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-light);
    position: relative;
    z-index: 1;
}

.feature-description {
    color: var(--text-muted);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* Image-Text Sections */
.image-text-section {
    padding: 100px 20px;
    background: var(--primary-dark);
    position: relative;
}

.image-text-section:nth-child(even) {
    background: var(--surface-dark);
}

.image-text-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.image-text-container.reverse {
    direction: rtl;
}

.image-text-container.reverse > * {
    direction: ltr;
}

.text-content h3 {
    font-size: 2.5em;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-light), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-content p {
    font-size: 1.1em;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.7;
    font-weight: 400;
}

.text-content ul {
    list-style: none;
    padding: 0;
}

.text-content li {
    padding: 15px 0;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.text-content li:hover {
    color: var(--text-light);
    padding-left: 10px;
}

.text-content li:before {
    content: "✓";
    color: var(--accent-cyan);
    font-weight: bold;
    margin-right: 15px;
    transition: all 0.3s ease;
}

.image-placeholder {
    background: linear-gradient(135deg, var(--primary-navy), var(--primary-blue));
    height: 400px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.2em;
    font-weight: 600;
    box-shadow: 0 20px 40px var(--glow-cyan);
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, var(--glow-mint), transparent);
    opacity: 0.1;
    animation: rotate 10s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.image-placeholder:hover {
    transform: scale(1.02);
    box-shadow: 0 30px 60px var(--glow-cyan);
}

/* Testimonials Section */
.testimonials {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-navy));
    color: var(--text-light);
    padding: 100px 20px;
    position: relative;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, var(--glow-mint) 0%, transparent 70%);
    opacity: 0.03;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.testimonial {
    background: var(--glass-bg);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    backdrop-filter: blur(20px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.testimonial::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--glow-cyan), var(--glow-mint));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.testimonial:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 212, 255, 0.2);
}

.testimonial:hover::before {
    opacity: 0.05;
}

.testimonial-text {
    font-size: 1.1em;
    line-height: 1.6;
    margin-bottom: 30px;
    font-style: italic;
    color: var(--text-light);
    position: relative;
    z-index: 1;
}

.testimonial-text::before {
    content: '"';
    font-size: 4em;
    color: var(--accent-cyan);
    position: absolute;
    top: -20px;
    left: -10px;
    opacity: 0.3;
    font-family: serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-teal));
    border-radius: 50%;
    border: 2px solid var(--accent-mint);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.5em;
    color: var(--primary-dark);
    box-shadow: 0 8px 20px var(--glow-cyan);
    position: relative;
    z-index: 1;
}

.author-info h4 {
    margin-bottom: 5px;
    color: var(--text-light);
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.author-info p {
    color: var(--text-muted);
    font-size: 0.9em;
    position: relative;
    z-index: 1;
}

/* Benefits Section */
.benefits {
    padding: 100px 20px;
    background: var(--surface-dark);
    position: relative;
}

.benefits::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.benefit-card {
    background: linear-gradient(135deg, var(--primary-navy), var(--surface-elevated));
    padding: 30px;
    border-radius: 15px;
    border-left: 5px solid var(--accent-cyan);
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--glow-cyan), transparent);
    transition: left 0.6s ease;
}

.benefit-card:hover {
    transform: translateX(15px) scale(1.02);
    box-shadow: 0 15px 40px var(--glow-cyan);
    border-left-color: var(--accent-mint);
}

.benefit-card:hover::before {
    left: 100%;
}

.benefit-icon {
    font-size: 2.5em;
    margin-bottom: 15px;
}

.benefit-title {
    font-size: 1.5em;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-light);
    position: relative;
    z-index: 1;
}

.benefit-description {
    color: var(--text-muted);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* CTA Section */
.final-cta {
    background: 
        radial-gradient(circle at 30% 70%, var(--glow-cyan) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, var(--glow-mint) 0%, transparent 50%),
        linear-gradient(135deg, var(--primary-dark), var(--primary-navy));
    color: var(--text-light);
    padding: 100px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNjAiIGhlaWdodD0iNjAiIHZpZXdCb3g9IjAgMCA2MCA2MCIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KPGRlZnM+CjxwYXR0ZXJuIGlkPSJkb3RzIiB3aWR0aD0iNjAiIGhlaWdodD0iNjAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiPgo8Y2lyY2xlIGN4PSIzMCIgY3k9IjMwIiByPSIxLjUiIGZpbGw9InJnYmEoMCwyMTIsyTU1LDAuMSkiLz4KPC9wYXR0ZXJuPgo8L2RlZnM+CjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbGw9InVybCgjZG90cykiIC8+Cjwvc3ZnPg==');
    opacity: 0.3;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 3em;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-light), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.cta-subtitle {
    font-size: 1.3em;
    font-weight: 400;
    margin-bottom: 40px;
    color: var(--text-muted);
    position: relative;
    z-index: 1;
}

.urgency-text {
    background: var(--glass-bg);
    border: 1px solid rgba(0, 212, 255, 0.2);
    padding: 25px;
    border-radius: 15px;
    margin: 30px 0;
    font-size: 1.1em;
    backdrop-filter: blur(20px);
    position: relative;
    z-index: 1;
    animation: glow-border 3s ease-in-out infinite alternate;
}

@keyframes glow-border {
    from { border-color: rgba(0, 212, 255, 0.2); }
    to { border-color: rgba(100, 255, 218, 0.4); }
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed !important;
    bottom: 20px !important;
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%) !important;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-teal));
    color: var(--primary-dark);
    padding: 18px 35px;
    border: none;
    border-radius: 50px;
    font-size: 1.2em;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex !important;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 30px var(--glow-cyan);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 9999 !important;
    animation: pulse-advanced 3s ease-in-out infinite;
    overflow: hidden;
    white-space: nowrap;
    min-width: auto;
    width: auto;
    max-width: 90vw;
    visibility: visible !important;
    opacity: 1 !important;
}

.whatsapp-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

.whatsapp-btn:hover {
    transform: translateX(-50%) translateY(-8px) scale(1.05);
    box-shadow: 0 20px 50px var(--glow-cyan);
}

.whatsapp-btn:hover::before {
    left: 100%;
}

@keyframes pulse-advanced {
    0%, 100% { 
        box-shadow: 0 10px 30px var(--glow-cyan);
        transform: translateX(-50%) scale(1);
    }
    50% { 
        box-shadow: 0 15px 40px var(--glow-mint);
        transform: translateX(-50%) scale(1.02);
    }
}

.whatsapp-icon {
    width: 28px;
    height: 28px;
    fill: currentColor;
}

/* 确保WhatsApp按钮始终可见 */
.whatsapp-btn {
    pointer-events: auto !important;
}

/* 防止任何元素遮挡按钮 */
body::after {
    content: '';
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    z-index: 9998;
    pointer-events: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title { font-size: 2.5em; }
    .hero-subtitle { font-size: 1.3em; }
    .hero-logo { font-size: 3em; }
    .hero-avatar { width: 110px; height: 110px; font-size: 2.8em; }
    
    .section-title { font-size: 2.2em; }
    .text-content h3 { font-size: 2em; }
    
    .image-text-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .stat-number { font-size: 2.5em; }
    
    .whatsapp-btn {
        padding: 15px 25px;
        font-size: 1em;
        max-width: 300px;
    }
    
    .features-grid,
    .testimonials-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero { height: auto; min-height: 100vh; padding: 40px 0; }
    .hero-title { font-size: 2em; }
    .hero-subtitle { font-size: 1.1em; }
    .hero-avatar { width: 100px; height: 100px; font-size: 2.5em; }
    
    .stats-container { grid-template-columns: 1fr; }
    
    .whatsapp-btn {
        left: 50% !important;
        right: auto !important;
        transform: translateX(-50%) !important;
        border-radius: 15px;
        width: calc(100vw - 20px);
        max-width: calc(100vw - 20px);
        justify-content: center;
    }
}