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

    body {
        font-family: 'Pretendard', 'Noto Sans KR', sans-serif;
        line-height: 1.6;
        color: #333;
        overflow-x: hidden;
    }

    /* Hero Section */
    .hero {
        position: relative;
        min-height: 100vh;
        background: linear-gradient(135deg, #1a365d 0%, #2563eb 50%, #1e40af 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        padding: 60px 0;
    }

    .hero-container {
        max-width: 1400px;
        margin: 0 auto;
        padding: 0 20px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }

    .hero-left {
        color: white;
        z-index: 2;
    }

    .hero-badge {
        display: inline-block;
        background: rgba(255, 255, 255, 0.1);
        padding: 8px 16px;
        border-radius: 20px;
        font-size: 0.9rem;
        color: #FFD700;
        margin-bottom: 20px;
        backdrop-filter: blur(5px);
    }

    .hero-title {
        font-weight: 600;
        font-size: 3.5rem;
        line-height: 1.2;
        margin-bottom: 20px;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        animation: fadeInUp 1s ease-out;
    }

    .hero-subtitle {
        font-size: 1.25rem;
        font-weight: 400;
        margin-bottom: 30px;
        opacity: 0.9;
        line-height: 1.8;
        animation: fadeInUp 1s ease-out 0.3s both;
    }

    .hero-features {
        display: flex;
        gap: 20px;
        margin-bottom: 30px;
    }

    .hero-feature {
        display: flex;
        align-items: center;
        gap: 8px;
        color: rgba(255, 255, 255, 0.9);
    }

    .hero-feature i {
        color: #FFD700;
    }

    .hero-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        margin-top: 40px;
    }

    .stat-item {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 15px;
        backdrop-filter: blur(5px);
        text-align: center;
    }

    .stat-number {
        font-weight: 600;
        font-size: 2rem;
        color: #FFD700;
        margin-bottom: 5px;
    }

    .stat-label {
        font-size: 0.9rem;
        color: rgba(255, 255, 255, 0.9);
    }

    .cta-buttons {
        display: flex;
        gap: 20px;
        margin-top: 30px;
    }

    .cta-button {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: linear-gradient(45deg, #f59e0b, #f97316);
        color: white;
        padding: 15px 30px;
        font-size: 1.1rem;
        font-weight: 500;
        text-decoration: none;
        border-radius: 50px;
        box-shadow: 0 8px 20px rgba(245, 158, 11, 0.4);
        transition: all 0.3s ease;
    }

    .cta-button-secondary {
        background: rgba(255, 255, 255, 0.1);
        box-shadow: none;
    }

    .cta-button:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 30px rgba(245, 158, 11, 0.6);
    }

    .cta-button-secondary:hover {
        background: rgba(255, 255, 255, 0.2);
        box-shadow: none;
    }

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

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

    /* Section Styling */
    .section {
        padding: 80px 0;
    }

    .section-title {
        font-weight: 600;
        font-size: 2.5rem;
        text-align: center;
        margin-bottom: 50px;
        color: #1a365d;
        position: relative;
        line-height: 1.2;
    }

    .section-title::after {
        content: '';
        position: absolute;
        bottom: -10px;
        left: 50%;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background: linear-gradient(45deg, #f59e0b, #f97316);
        border-radius: 2px;
    }

    /* Introduction Section */
    .intro-section {
        background: #F8FAFC;
    }

    .intro-content {
        display: grid;
        grid-template-columns: 1fr 300px;
        gap: 50px;
        align-items: center;
    }

    .intro-text {
        font-size: 1.1rem;
        line-height: 1.8;
        color: #4B5563;
    }

    .intro-text strong {
        font-weight: 500;
        color: #1a365d;
    }

    .profile-image {
        width: 300px;
        height: 300px;
        border-radius: 20px;
        background: linear-gradient(135deg, #1a365d, #2563eb);
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-size: 2rem;
        box-shadow: 0 20px 40px rgba(26, 54, 93, 0.3);
        transition: transform 0.3s ease;
    }

    .profile-image:hover {
        transform: scale(1.05);
    }

    .profile-stats {
        display: flex;
        gap: 30px;
        justify-content: center;
        margin-top: 30px;
    }

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

    .profile-stat-number {
        font-size: 1.5rem;
        font-weight: 600;
        color: #1a365d;
        margin-bottom: 5px;
    }

    .profile-stat-label {
        color: #6B7280;
        font-size: 0.9rem;
    }

    /* Activities Section */
    .activities-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 30px;
    }

    .activity-card {
        background: white;
        padding: 30px;
        border-radius: 15px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        transition: all 0.3s ease;
        border-top: 4px solid #f59e0b;
    }

    .activity-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    }

    .activity-icon {
        font-size: 2.5rem;
        color: #1E3A8A;
        margin-bottom: 20px;
    }

    .activity-title {
        font-weight: 600;
        font-size: 1.3rem;
        margin-bottom: 15px;
        color: #1a365d;
    }

    .activity-desc {
        color: #6B7280;
        line-height: 1.7;
    }

    .activity-features {
        margin-top: 20px;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .activity-feature {
        display: flex;
        align-items: center;
        gap: 10px;
        color: #4B5563;
        font-size: 0.95rem;
    }

    .activity-feature i {
        color: #f59e0b;
    }

    /* Handbook Section */
    .handbook-section {
        background: linear-gradient(135deg, #1a365d, #2563eb);
        color: white;
    }

    .handbook-content {
        display: grid;
        grid-template-columns: 1fr 250px;
        gap: 50px;
        align-items: center;
    }

    .handbook-text {
        font-size: 1.1rem;
        line-height: 1.8;
    }

    .handbook-features {
        margin-top: 30px;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .handbook-feature {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 15px;
        backdrop-filter: blur(5px);
    }

    .handbook-feature-title {
        font-weight: 500;
        font-size: 1.1rem;
        margin-bottom: 10px;
        color: #f59e0b;
    }

    .handbook-feature-desc {
        font-size: 0.95rem;
        color: rgba(255, 255, 255, 0.9);
    }

    .handbook-image {
        width: 250px;
        height: 320px;
        background: linear-gradient(135deg, #FFD700, #F97316);
        border-radius: 15px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        transition: transform 0.3s ease;
    }

    .handbook-image:hover {
        transform: rotate(5deg) scale(1.05);
    }

    .book-icon {
        font-size: 4rem;
        margin-bottom: 10px;
    }

    .book-title {
        font-family: 'Do Hyeon', sans-serif;
        font-weight: 700;
        font-size: 1.5rem;
        text-align: center;
        color: #1E3A8A;
    }

    .preview-button {
        display: inline-block;
        background: #3B82F6;
        color: white;
        padding: 12px 30px;
        margin-top: 20px;
        border-radius: 25px;
        text-decoration: none;
        font-weight: 600;
        transition: all 0.3s ease;
    }

    .preview-button:hover {
        background: #2563EB;
        transform: translateY(-2px);
        color: white;
    }

    /* Join Section */
    .join-section {
        background: #F8FAFC;
    }

    .join-form {
        max-width: 600px;
        margin: 0 auto;
        background: white;
        padding: 40px;
        border-radius: 20px;
        box-shadow: 0 20px 50px rgba(0,0,0,0.1);
    }

    .form-group {
        margin-bottom: 25px;
    }

    .form-label {
        font-family: 'Jua', sans-serif;
        display: block;
        margin-bottom: 8px;
        font-size: 1.2rem;
        color: #374151;
    }

    .form-input {
        width: 100%;
        padding: 15px;
        border: 2px solid #E5E7EB;
        border-radius: 10px;
        font-size: 1rem;
        transition: border-color 0.3s ease;
    }

    .form-input:focus {
        outline: none;
        border-color: #3B82F6;
    }

    .submit-button {
        width: 100%;
        background: linear-gradient(45deg, #10B981, #059669);
        color: white;
        padding: 15px;
        border: none;
        border-radius: 10px;
        font-size: 1.1rem;
        font-weight: 700;
        cursor: pointer;
        transition: all 0.3s ease;
    }

    .submit-button:hover {
        background: linear-gradient(45deg, #059669, #047857);
        transform: translateY(-2px);
    }

    /* Footer */
    .footer {
        background: #374151;
        color: white;
        padding: 50px 0;
        text-align: center;
    }

    .footer-content {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
        margin-bottom: 30px;
    }

    .footer-section h4 {
        font-size: 1.2rem;
        margin-bottom: 15px;
        color: #FFD700;
    }

    .footer-section p {
        line-height: 1.6;
        opacity: 0.8;
    }

    .social-icons {
        display: flex;
        justify-content: center;
        gap: 15px;
        margin-top: 20px;
    }

    .social-icon {
        display: inline-block;
        width: 50px;
        height: 50px;
        background: #4B5563;
        border-radius: 50%;
        line-height: 50px;
        text-align: center;
        color: white;
        text-decoration: none;
        transition: all 0.3s ease;
    }

    .social-icon:hover {
        background: #FFD700;
        color: #374151;
        transform: translateY(-3px);
    }

    .copyright {
        border-top: 1px solid #4B5563;
        padding-top: 20px;
        opacity: 0.6;
    }

    /* Success Stories Section */
    .success-stories {
        background: #f8fafc;
        padding: 80px 0;
    }

    .stories-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 50px;
    }

    .story-card {
        background: white;
        border-radius: 15px;
        padding: 30px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        transition: all 0.3s ease;
    }

    .story-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    }

    .story-header {
        display: flex;
        align-items: center;
        gap: 15px;
        margin-bottom: 20px;
    }

    .story-avatar {
        width: 60px;
        height: 60px;
        border-radius: 50%;
        background: #e5e7eb;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        color: #1a365d;
    }

    .story-meta h4 {
        font-weight: 600;
        color: #1a365d;
        margin-bottom: 5px;
    }

    .story-meta p {
        color: #6b7280;
        font-size: 0.9rem;
    }

    .story-content {
        color: #4b5563;
        line-height: 1.7;
        margin-bottom: 20px;
    }

    .story-stats {
        display: flex;
        gap: 20px;
        padding-top: 20px;
        border-top: 1px solid #e5e7eb;
    }

    .story-stat {
        flex: 1;
        text-align: center;
    }

    .story-stat-number {
        font-weight: 600;
        color: #1a365d;
        font-size: 1.2rem;
        margin-bottom: 5px;
    }

    .story-stat-label {
        color: #6b7280;
        font-size: 0.9rem;
    }

    /* Resources Section */
    .resources-section {
        background: linear-gradient(135deg, #1a365d 0%, #2563eb 100%);
        color: white;
        padding: 80px 0;
    }

    .resources-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
        margin-top: 50px;
    }

    .resource-card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 30px;
        backdrop-filter: blur(10px);
        transition: all 0.3s ease;
    }

    .resource-card:hover {
        transform: translateY(-5px);
        background: rgba(255, 255, 255, 0.15);
    }

    .resource-icon {
        font-size: 2rem;
        color: #f59e0b;
        margin-bottom: 20px;
    }

    .resource-title {
        font-weight: 600;
        font-size: 1.2rem;
        margin-bottom: 15px;
        color: white;
    }

    .resource-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .resource-item {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 10px;
        color: rgba(255, 255, 255, 0.9);
    }

    .resource-item i {
        color: #f59e0b;
        font-size: 0.8rem;
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
        .hero-container {
            grid-template-columns: 1fr;
            text-align: center;
            gap: 40px;
        }

        .hero-stats {
            justify-content: center;
            max-width: 400px;
            margin: 40px auto;
        }

        .hero-title {
            font-size: 3rem;
        }
    }

    /* Mobile Optimization */
    @media (max-width: 768px) {
        .hero-container {
            grid-template-columns: 1fr;
            text-align: center;
            gap: 30px;
            padding: 20px;
        }

        .hero-title {
            font-size: 2.2rem;
        }

        .hero-subtitle {
            font-size: 1.1rem;
        }

        .hero-features {
            flex-direction: column;
            align-items: center;
        }

        .hero-stats {
            grid-template-columns: repeat(2, 1fr);
            max-width: 300px;
            margin: 30px auto;
        }

        .section {
            padding: 50px 0;
        }

        .section-title {
            font-size: 2rem;
            margin-bottom: 30px;
        }

        .intro-content {
            grid-template-columns: 1fr;
            gap: 30px;
        }

        .profile-stats {
            flex-wrap: wrap;
            justify-content: center;
        }

        .profile-stat {
            flex: 0 0 calc(50% - 15px);
            margin-bottom: 15px;
        }

        .activities-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .activity-card {
            padding: 20px;
        }

        .stories-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .story-card {
            padding: 20px;
        }

        .resources-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .handbook-content {
            grid-template-columns: 1fr;
            gap: 30px;
            text-align: center;
        }

        .handbook-features {
            grid-template-columns: 1fr;
        }

        .handbook-image {
            margin: 0 auto;
        }

        .join-form {
            padding: 20px;
        }

        .footer-content {
            grid-template-columns: 1fr;
            text-align: center;
            gap: 30px;
        }

        .social-icons {
            justify-content: center;
        }
    }

    /* Stock Image Sections */
    .market-trends {
        padding: 60px 0;
        background: #f8fafc;
    }

    .trends-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .trend-card {
        background: white;
        border-radius: 15px;
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        transition: all 0.3s ease;
    }

    .trend-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    }

    .trend-image {
        width: 100%;
        height: 200px;
        object-fit: cover;
        border-bottom: 1px solid #e5e7eb;
    }

    .trend-content {
        padding: 20px;
    }

    .trend-title {
        font-weight: 600;
        font-size: 1.2rem;
        color: #1a365d;
        margin-bottom: 10px;
    }

    .trend-desc {
        color: #6b7280;
        font-size: 0.95rem;
        line-height: 1.6;
    }

    .analysis-section {
        position: relative;
        padding: 80px 0;
        background: linear-gradient(135deg, #1a365d 0%, #2563eb 100%);
        color: white;
        overflow: hidden;
    }

    .analysis-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
        align-items: center;
    }

    .analysis-image {
        width: 100%;
        border-radius: 15px;
        box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    }

    .analysis-content h3 {
        font-size: 2rem;
        font-weight: 600;
        margin-bottom: 20px;
    }

    .analysis-content p {
        font-size: 1.1rem;
        line-height: 1.8;
        margin-bottom: 30px;
        opacity: 0.9;
    }

    @media (max-width: 768px) {
        .trends-grid {
            grid-template-columns: 1fr;
        }

        .analysis-grid {
            grid-template-columns: 1fr;
            gap: 30px;
        }

        .analysis-content {
            text-align: center;
        }
    }

    @media (max-width: 480px) {
        .hero-title {
            font-size: 2rem;
        }

        .hero-stats {
            grid-template-columns: 1fr;
        }

        .section {
            padding: 50px 0;
        }

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

        .profile-image,
        .handbook-image {
            width: 250px;
            height: 250px;
            margin: 0 auto;
        }

        .handbook-image {
            height: 280px;
        }
    }
    .floating-button-container {
        position: fixed;
        bottom: 30px;
        left: 0;
        right: 0;
        display: flex;
        justify-content: center;
        z-index: 1000;
        pointer-events: none;
        }
        @keyframes bounce {
        0%, 100% {
        transform: translateY(0);
        }
        50% {
        transform: translateY(-10px);
        }
        }
        .floating-button {
        position: relative;
        background: #05C705;
        color: white;
        padding: 15px 30px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: bold;
        font-size: 18px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        display: flex;
        align-items: center;
        gap: 10px;
        animation: bounce 2s infinite;
        transition: all 0.3s ease;
        white-space: nowrap;
        pointer-events: auto;
        }
        
        .floating-button:hover {
        transform: scale(1.05);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }
        
        .floating-button .icon {
        font-size: 24px;
        }
        
        @media (max-width: 768px) {
        .floating-button-container {
        bottom: 20px;
        }
        
        .floating-button {
        font-size: 16px;
        padding: 12px 24px;
        }
        }
        
        @media (max-width: 480px) {
        .floating-button {
        font-size: 14px;
        padding: 10px 20px;
        }
        
        .floating-button .icon {
        font-size: 18px;
        }
        }

/* Stock Market Widget */
.stock-widget {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    min-width: 280px;
    transform: translateY(0);
    transition: all 0.3s ease;
}

.stock-widget:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.95);
}

.stock-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: all 0.2s ease;
}

.stock-item:hover {
    background: rgba(0, 0, 0, 0.02);
    padding-left: 8px;
    padding-right: 8px;
    margin: 0 -8px;
    border-radius: 10px;
}

.stock-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.stock-item:first-child {
    padding-top: 0;
}

.stock-label {
    font-weight: 600;
    font-size: 1rem;
    color: #1a365d;
    min-width: 90px;
    letter-spacing: -0.02em;
}

.stock-value {
    font-weight: 600;
    font-size: 1rem;
    color: #2d3748;
    margin: 0 12px;
    font-feature-settings: "tnum";
    font-variant-numeric: tabular-nums;
}

.stock-change {
    font-size: 0.9rem;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 6px;
    min-width: 70px;
    text-align: center;
    font-feature-settings: "tnum";
    font-variant-numeric: tabular-nums;
}

.stock-change.up {
    background-color: rgba(52, 211, 153, 0.15);
    color: #059669;
}

.stock-change.down {
    background-color: rgba(239, 68, 68, 0.15);
    color: #dc2626;
}

@media (max-width: 768px) {
    .stock-widget {
        position: static;
        margin: -40px auto 20px;
        max-width: 320px;
        background: white;
        border: none;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }

    .stock-widget:hover {
        transform: none;
    }
}