:root {
            --ysa473-primary: #FF7139;
            --ysa473-primary-dark: #E66024;
            --ysa473-secondary: #002240;
            --ysa473-accent: #9059FF;
            --ysa473-bg: #f9f9fb;
            --ysa473-text: #20123a;
            --ysa473-text-light: #5b5b66;
            --ysa473-white: #ffffff;
            --ysa473-spacing-unit: 8px;
            --ysa473-shadow: 0 12px 24px rgba(0, 34, 64, 0.08);
            --ysa473-container-width: 1100px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--ysa473-bg);
            color: var(--ysa473-text);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        h1, h2, h3 {
            line-height: 1.2;
            white-space: normal;
            word-break: keep-all;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        .ysa473-container {
            max-width: var(--ysa473-container-width);
            margin: 0 auto;
            padding: 0 calc(var(--ysa473-spacing-unit) * 3);
        }

        /* Navigation */
        .ysa473-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .ysa473-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            min-width: 0;
        }

        .ysa473-logo {
            flex-shrink: 0;
            min-width: 0;
            display: flex;
            align-items: center;
        }

        .ysa473-logo img {
            height: 40px;
            width: auto;
        }

        .ysa473-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: calc(var(--ysa473-spacing-unit) * 2);
            min-width: 0;
        }

        .ysa473-nav-item a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--ysa473-text-light);
            padding: calc(var(--ysa473-spacing-unit)) calc(var(--ysa473-spacing-unit) * 1.5);
            border-radius: 6px;
        }

        .ysa473-nav-item a:hover {
            color: var(--ysa473-primary);
            background: rgba(255, 113, 57, 0.05);
        }

        .ysa473-nav-item a.ysa473-active {
            color: var(--ysa473-primary);
            font-weight: 700;
        }

        /* Hero Registration Section */
        .ysa473-hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background: linear-gradient(135deg, #fff 0%, #f0f4ff 100%);
            overflow: hidden;
            position: relative;
        }

        .ysa473-hero-layout {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: center;
            min-width: 0;
        }

        .ysa473-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .ysa473-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            font-weight: 900;
            margin-bottom: 24px;
            color: var(--ysa473-secondary);
            letter-spacing: -1px;
        }

        .ysa473-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--ysa473-text-light);
            margin-bottom: 32px;
            max-width: 540px;
            line-height: 1.8;
        }

        .ysa473-reg-card {
            flex: 1;
            min-width: 320px;
            background: var(--ysa473-white);
            padding: 40px;
            border-radius: 24px;
            box-shadow: 0 20px 50px rgba(0, 34, 64, 0.1);
            border: 1px solid rgba(0,0,0,0.03);
            position: relative;
            z-index: 2;
        }

        .ysa473-form-group {
            margin-bottom: 20px;
        }

        .ysa473-form-label {
            display: block;
            font-weight: 600;
            margin-bottom: 8px;
            font-size: 0.9rem;
        }

        .ysa473-input {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #e0e0e6;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
            outline: none;
        }

        .ysa473-input:focus {
            border-color: var(--ysa473-primary);
        }

        .ysa473-btn-submit {
            width: 100%;
            padding: 16px;
            background: var(--ysa473-primary);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: transform 0.2s, background 0.3s;
            margin-top: 10px;
        }

        .ysa473-btn-submit:hover {
            background: var(--ysa473-primary-dark);
            transform: translateY(-2px);
        }

        .ysa473-form-footer {
            margin-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--ysa473-text-light);
        }

        .ysa473-form-footer a {
            color: var(--ysa473-primary);
            font-weight: 600;
        }

        /* Features Grid */
        .ysa473-features {
            padding: 96px 0;
            background: var(--ysa473-white);
        }

        .ysa473-section-head {
            text-align: center;
            margin-bottom: 64px;
        }

        .ysa473-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .ysa473-feature-card {
            padding: 40px;
            border-radius: 16px;
            background: var(--ysa473-bg);
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid transparent;
        }

        .ysa473-feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--ysa473-shadow);
            border-color: rgba(255, 113, 57, 0.2);
        }

        .ysa473-feature-icon {
            width: 64px;
            height: 64px;
            background: var(--ysa473-white);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            font-size: 2rem;
            color: var(--ysa473-primary);
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

        .ysa473-feature-title {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--ysa473-secondary);
        }

        /* Dynamic Content Section */
        .ysa473-news-section {
            padding: 80px 0;
            background: #f0f3f9;
        }

        /* Footer */
        .ysa473-footer {
            padding: 80px 0 40px;
            background: var(--ysa473-secondary);
            color: rgba(255, 255, 255, 0.8);
        }

        .ysa473-footer-layout {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
            min-width: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 48px;
        }

        .ysa473-footer-brand {
            flex: 1;
            min-width: 240px;
        }

        .ysa473-footer-brand-name {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--ysa473-white);
            margin-bottom: 16px;
        }

        .ysa473-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            flex: 2;
            min-width: 0;
        }

        .ysa473-footer-col {
            flex: 1;
            min-width: 140px;
        }

        .ysa473-footer-col h4 {
            color: var(--ysa473-white);
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .ysa473-footer-col ul {
            list-style: none;
        }

        .ysa473-footer-col li {
            margin-bottom: 12px;
        }

        .ysa473-footer-col a:hover {
            color: var(--ysa473-primary);
        }

        .ysa473-copyright {
            padding-top: 40px;
            text-align: center;
            font-size: 0.85rem;
            opacity: 0.6;
        }

        /* Responsive Breakpoints */
        @media (max-width: 768px) {
            .ysa473-nav-menu {
                display: none; /* In a real site, implement a burger menu */
            }
            .ysa473-hero-layout {
                flex-direction: column;
                text-align: center;
            }
            .ysa473-hero-subtitle {
                margin: 0 auto 32px;
            }
            .ysa473-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Artistic Decoration */
        .ysa473-blob {
            position: absolute;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(144, 89, 255, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
            top: -100px;
            right: -100px;
            z-index: 1;
        }