/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Lapis Lazuli Blue Color Palette */
    --primary-blue: #1B4F72;
    --secondary-blue: #2874A6;
    --light-blue: #D6EAF8;
    --accent-blue: #3498DB;
    --dark-blue: #154360;
    
    /* Additional Colors */
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --gray: #6C757D;
    --dark-gray: #343A40;
    --green: #27AE60;
    --red: #E74C3C;
    --gold: #F39C12;
    
    /* Typography */
    --font-primary: 'Libre Baskerville', serif;
    --font-secondary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 80px 0;
    --border-radius: 12px;
    --box-shadow: 0 10px 30px rgba(27, 79, 114, 0.1);
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-blue);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    font-family: var(--font-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--gray);
}

/* Utility Classes */
.text-green { color: var(--green); }
.text-red { color: var(--red); }
.highlight { color: var(--accent-blue); }

/* Stock Market Ticker */
.ticker-container {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    padding: 12px 0;
    overflow: hidden;
    position: relative;
    z-index: 100;
}

.ticker-content {
    display: flex;
    animation: scroll 60s linear infinite;
    white-space: nowrap;
}

.ticker-item {
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-right: 60px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

@keyframes scroll {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="%23D6EAF8" stroke-width="1" opacity="0.3"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(214, 234, 248, 0.8) 0%, rgba(255, 255, 255, 0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: var(--section-padding);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    color: var(--primary-blue);
    padding: 12px 24px;
    border-radius: 50px;
    font-family: var(--font-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--box-shadow);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 40px;
    color: var(--gray);
}

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

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    font-family: var(--font-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray);
    font-family: var(--font-secondary);
    margin-top: 4px;
}

.hero-image-container {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-image {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    object-fit: cover;
    border: 8px solid var(--white);
    box-shadow: 0 20px 60px rgba(27, 79, 114, 0.2);
}

.hero-badge-floating {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary-blue);
    color: var(--white);
    padding: 12px 20px;
    border-radius: 50px;
    font-family: var(--font-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--box-shadow);
}

/* CTA Button */
.cta-button {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    border: none;
    padding: 18px 36px;
    border-radius: 50px;
    font-family: var(--font-secondary);
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 8px 25px rgba(27, 79, 114, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(27, 79, 114, 0.4);
}

.cta-button.large {
    padding: 24px 48px;
    font-size: 1.2rem;
}

.cta-button i {
    font-size: 1.2em;
}

/* Section Styles */
section {
    padding: var(--section-padding);
}

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

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--gray);
}

/* About Section */
.about {
    background-color: var(--light-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.about-text h3 {
    margin-bottom: 24px;
    color: var(--primary-blue);
}

.about-text p {
    margin-bottom: 24px;
}

.expertise-list {
    margin-top: 32px;
}

.expertise-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-family: var(--font-secondary);
    font-weight: 500;
}

.expertise-item i {
    color: var(--green);
    font-size: 1.2rem;
}

/* Benefits Section */
.benefits-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.benefits-left h2 {
    margin-bottom: 24px;
}

.benefits-left > p {
    margin-bottom: 40px;
    font-size: 1.2rem;
}

.benefit-list {
    display: grid;
    gap: 32px;
}

.benefit-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.benefit-icon {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.benefit-content h4 {
    margin-bottom: 8px;
    color: var(--primary-blue);
}

.benefit-content p {
    color: var(--gray);
}

.benefits-image {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* YouTube Section */
.youtube {
    background-color: var(--light-gray);
}

.youtube-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: center;
}

.youtube-image {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.youtube-right h2 {
    margin-bottom: 24px;
}

.youtube-right > p {
    margin-bottom: 32px;
}

.youtube-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 32px;
}

.youtube-stat {
    text-align: center;
}

.youtube-stat .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
    font-family: var(--font-primary);
}

.youtube-stat .stat-label {
    font-size: 0.9rem;
    color: var(--gray);
    font-family: var(--font-secondary);
    margin-top: 4px;
}

.youtube-description {
    color: var(--gray);
    font-style: italic;
}

/* Testimonials Section */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.testimonial-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
}

.testimonial-content {
    margin-bottom: 24px;
}

.testimonial-content p {
    font-style: italic;
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--dark-gray);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

/* 当没有头像时的样式 */
.testimonial-author:not(:has(.author-image)) {
    justify-content: flex-start;
}

.testimonial-author:not(:has(.author-image)) .author-info {
    padding-left: 0;
}

.author-info h4 {
    margin-bottom: 4px;
    color: var(--primary-blue);
}

.author-info span {
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    color: var(--gray);
}

/* Final CTA Section */
.final-cta {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    text-align: center;
}

.final-cta h2 {
    color: var(--white);
    margin-bottom: 24px;
}

.final-cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-note {
    margin-top: 24px !important;
    font-size: 0.9rem !important;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.8) !important;
}

/* Footer */
.footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-left h3 {
    color: var(--white);
    margin-bottom: 12px;
}

.footer-left p {
    color: rgba(255, 255, 255, 0.7);
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--accent-blue);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Fixed CTA Button */
.fixed-cta {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
}

.cta-button.fixed {
    padding: 16px 32px;
    font-size: 1rem;
    box-shadow: 0 8px 30px rgba(27, 79, 114, 0.4);
    animation: pulse 2s infinite;
    white-space: nowrap;
}

.cta-button.fixed .cta-text {
    display: inline;
    margin-left: 8px;
}

@keyframes pulse {
    0% { box-shadow: 0 8px 30px rgba(27, 79, 114, 0.4); }
    50% { box-shadow: 0 8px 40px rgba(27, 79, 114, 0.6); }
    100% { box-shadow: 0 8px 30px rgba(27, 79, 114, 0.4); }
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .container {
        padding: 0 16px;
    }
    
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .ticker-item {
        font-size: 0.8rem;
        margin-right: 40px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 20px;
    }
    
    .hero-image {
        width: 300px;
        height: 300px;
    }
    
    .about-content,
    .benefits-content,
    .youtube-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .youtube-stats {
        justify-content: center;
        gap: 20px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-card {
        text-align: center;
    }
    
    .testimonial-author {
        justify-content: center;
        text-align: center;
    }
    
    /* 没有头像时也居中 */
    .testimonial-author:not(:has(.author-image)) {
        justify-content: center;
        text-align: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .fixed-cta {
        left: 20px;
        right: 20px;
        transform: none;
    }
    
    .cta-button.fixed {
        width: 100%;
        justify-content: center;
        padding: 18px 24px;
    }
    
    .cta-button.fixed .cta-text {
        display: inline;
    }
    
    /* 确保所有section内容居中 */
    .section-header,
    .about-text,
    .benefits-left,
    .youtube-right {
        text-align: center;
    }
    
    .expertise-list {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
    
    .expertise-item {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-image {
        width: 250px;
        height: 250px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }
    
    .benefit-item {
        flex-direction: column;
        text-align: center;
        gap: 16px;
        align-items: center;
    }
    
    .testimonial-card {
        padding: 24px;
    }
    
    /* 小屏幕固定按钮保持文字显示，但字体稍小 */
    .cta-button.fixed {
        padding: 16px 20px;
        font-size: 0.95rem;
    }
    
    .cta-button.fixed .cta-text {
        display: inline;
    }
    
    /* 更好的居中对齐 */
    .final-cta .cta-content {
        text-align: center;
    }
    
    .benefit-list {
        align-items: center;
    }
    
    .youtube-stat,
    .stat-item {
        text-align: center;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus States for Accessibility */
.cta-button:focus,
.social-link:focus {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Initial Hero Page Styles */
.initial-hero-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.initial-hero-content {
    text-align: center;
    color: var(--white);
    animation: fadeInUp 1s ease-out;
}

.initial-avatar-container {
    position: relative;
    margin-bottom: 30px;
    display: inline-block;
}

.initial-avatar {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 6px solid var(--white);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: avatarFloat 3s ease-in-out infinite;
}

.initial-glow {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--accent-blue), var(--light-blue), var(--accent-blue));
    z-index: -1;
    animation: rotate 4s linear infinite;
    opacity: 0.7;
}

.initial-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--white);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.initial-subtitle {
    font-size: 1.4rem;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
    font-family: var(--font-secondary);
}

.initial-cta-button {
    background: var(--white);
    color: var(--primary-blue);
    border: none;
    padding: 20px 40px;
    border-radius: 50px;
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    animation: buttonPulse 2s ease-in-out infinite;
}

.initial-cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    background: var(--light-blue);
}

.initial-cta-button i {
    font-size: 1.3em;
}

/* Loading Screen Styles */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9998;
}

.loading-content {
    text-align: center;
    color: var(--white);
}

.loading-spinner {
    width: 80px;
    height: 80px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 30px;
}

.loading-text {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--white);
    font-weight: 400;
}

.loading-progress {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--light-blue));
    border-radius: 2px;
    animation: progressFill 3s ease-out forwards;
}

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

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes progressFill {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* Responsive Design for Initial Hero */
@media (max-width: 768px) {
    .initial-avatar {
        width: 150px;
        height: 150px;
    }
    
    .initial-title {
        font-size: 2.5rem;
    }
    
    .initial-subtitle {
        font-size: 1.2rem;
        padding: 0 20px;
    }
    
    .initial-cta-button {
        padding: 18px 36px;
        font-size: 1.1rem;
    }
    
    .loading-text {
        font-size: 1.4rem;
        padding: 0 20px;
    }
    
    .loading-progress {
        width: 250px;
    }
}

@media (max-width: 480px) {
    .initial-avatar {
        width: 120px;
        height: 120px;
    }
    
    .initial-title {
        font-size: 2rem;
    }
    
    .initial-subtitle {
        font-size: 1rem;
    }
    
    .initial-cta-button {
        padding: 16px 32px;
        font-size: 1rem;
    }
    
    .loading-text {
        font-size: 1.2rem;
    }
    
    .loading-progress {
        width: 200px;
    }
}

/* Print Styles */
@media print {
    .ticker-container,
    .fixed-cta,
    .cta-button,
    .initial-hero-container,
    .loading-screen {
        display: none;
    }
}