:root {
            --f8a5-primary: #EE4034;
            --f8a5-primary-hover: #D32F2F;
            --f8a5-dark: #1D1D1F;
            --f8a5-gray: #86868B;
            --f8a5-light: #F5F5F7;
            --f8a5-white: #FFFFFF;
            --f8a5-accent: #0071E3;
            --f8a5-spacing-unit: 8px;
            --f8a5-container-max: 1400px;
        }

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

        body {
            font-family: "SF Pro SC","SF Pro Text","SF Pro Icons","PingFang SC","Helvetica Neue","Helvetica","Arial",sans-serif;
            background-color: var(--f8a5-white);
            color: var(--f8a5-dark);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        /* Fluid Typography */
        h1 { font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem); line-height: 1.1; font-weight: 700; margin-bottom: 24px; word-break: keep-all; }
        h2 { font-size: clamp(2rem, 3vw + 0.5rem, 3rem); line-height: 1.2; font-weight: 600; margin-bottom: 24px; }
        h3 { font-size: clamp(1.2rem, 1.5vw + 0.5rem, 1.8rem); line-height: 1.3; font-weight: 600; }
        p { font-size: clamp(1rem, 0.5vw + 0.8rem, 1.2rem); line-height: 1.8; color: var(--f8a5-gray); word-break: break-word; }

        /* Navigation */
        .f8a5-nav-fixed {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .f8a5-nav-container {
            max-width: var(--f8a5-container-max);
            margin: 0 auto;
            padding: 0 32px;
            height: 64px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

        .f8a5-logo {
            display: flex;
            align-items: center;
            height: 100%;
        }

        .f8a5-logo img {
            height: 32px;
            width: auto;
        }

        .f8a5-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
        }

        .f8a5-menu-item a {
            text-decoration: none;
            color: var(--f8a5-dark);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
            padding: 8px 0;
        }

        .f8a5-menu-item a:hover {
            color: var(--f8a5-primary);
        }

        .f8a5-menu-item a.f8a5-active {
            color: var(--f8a5-primary);
        }

        .f8a5-menu-item a.f8a5-active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--f8a5-primary);
        }

        /* Hero Section - Unique Asymmetric Layout */
        .f8a5-hero {
            padding: 160px 0 96px;
            background: radial-gradient(circle at 90% 10%, rgba(238, 64, 52, 0.05) 0%, rgba(255, 255, 255, 1) 50%);
            overflow: hidden;
        }

        .f8a5-hero-wrapper {
            max-width: var(--f8a5-container-max);
            margin: 0 auto;
            padding: 0 48px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .f8a5-hero-content {
            flex: 1;
            min-width: 0;
        }

        .f8a5-hero-visual {
            flex: 1;
            min-width: 0;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        /* Custom Wave Animation for Voice Focus */
        .f8a5-voice-wave {
            width: 100%;
            max-width: 500px;
            height: 300px;
            background: var(--f8a5-light);
            border-radius: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            position: relative;
        }

        .f8a5-wave-bar {
            width: 6px;
            height: 40px;
            background: var(--f8a5-primary);
            border-radius: 3px;
            animation: f8a5-pulse 1.2s infinite ease-in-out;
        }

        @keyframes f8a5-pulse {
            0%, 100% { height: 40px; opacity: 0.6; }
            50% { height: 120px; opacity: 1; }
        }

        .f8a5-hero-subtitle {
            margin-bottom: 40px;
            max-width: 600px;
        }

        .f8a5-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .f8a5-btn {
            padding: 16px 40px;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .f8a5-btn-primary {
            background-color: var(--f8a5-primary);
            color: var(--f8a5-white);
            box-shadow: 0 10px 20px rgba(238, 64, 52, 0.2);
        }

        .f8a5-btn-primary:hover {
            transform: translateY(-4px);
            background-color: var(--f8a5-primary-hover);
            box-shadow: 0 15px 30px rgba(238, 64, 52, 0.3);
        }

        .f8a5-btn-outline {
            background-color: transparent;
            color: var(--f8a5-dark);
            border: 2px solid var(--f8a5-dark);
        }

        .f8a5-btn-outline:hover {
            background-color: var(--f8a5-dark);
            color: var(--f8a5-white);
        }

        /* Features Section */
        .f8a5-section {
            padding: 96px 0;
        }

        .f8a5-section-title {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 64px;
            padding: 0 24px;
        }

        .f8a5-grid {
            max-width: var(--f8a5-container-max);
            margin: 0 auto;
            padding: 0 48px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .f8a5-card {
            background: var(--f8a5-light);
            padding: 48px;
            border-radius: 24px;
            transition: all 0.4s ease;
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .f8a5-card:hover {
            background: var(--f8a5-white);
            border-color: rgba(238, 64, 52, 0.1);
            box-shadow: 0 30px 60px rgba(0,0,0,0.08);
            transform: translateY(-8px);
        }

        .f8a5-card-icon {
            font-size: 40px;
            margin-bottom: 8px;
        }

        /* Download Options Section */
        .f8a5-download-section {
            background-color: var(--f8a5-dark);
            color: var(--f8a5-white);
            border-radius: 48px;
            margin: 0 48px 96px;
            padding: 80px 48px;
        }

        .f8a5-download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .f8a5-download-item {
            text-align: center;
            padding: 32px;
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 24px;
            transition: background 0.3s ease;
        }

        .f8a5-download-item:hover {
            background: rgba(255,255,255,0.05);
        }

        .f8a5-download-item h3 {
            margin-bottom: 12px;
            color: var(--f8a5-white);
        }

        .f8a5-download-item p {
            font-size: 14px;
            color: rgba(255,255,255,0.6);
            margin-bottom: 24px;
        }

        .f8a5-btn-small {
            padding: 10px 24px;
            font-size: 14px;
            border-radius: 20px;
        }

        /* Latest Articles Section */
        .f8a5-news-container {
            max-width: var(--f8a5-container-max);
            margin: 0 auto;
            padding: 0 48px;
        }

        .f8a5-news-item {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-bottom: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--f8a5-light);
            align-items: center;
        }

        .f8a5-news-img {
            flex: 0 0 300px;
            height: 200px;
            background: #eee;
            border-radius: 16px;
            min-width: 0;
            overflow: hidden;
            background: linear-gradient(135deg, #fce4ec 0%, #ffebee 100%);
        }

        .f8a5-news-text {
            flex: 1;
            min-width: 0;
        }

        /* Footer */
        .f8a5-footer {
            background-color: var(--f8a5-light);
            padding: 80px 0 40px;
        }

        .f8a5-footer-grid {
            max-width: var(--f8a5-container-max);
            margin: 0 auto;
            padding: 0 48px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .f8a5-footer-brand h2 {
            font-size: 24px;
            color: var(--f8a5-primary);
            margin-bottom: 16px;
        }

        .f8a5-footer-links h4 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .f8a5-footer-links ul {
            list-style: none;
        }

        .f8a5-footer-links li {
            margin-bottom: 12px;
        }

        .f8a5-footer-links a {
            text-decoration: none;
            color: var(--f8a5-gray);
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .f8a5-footer-links a:hover {
            color: var(--f8a5-primary);
        }

        .f8a5-copyright {
            max-width: var(--f8a5-container-max);
            margin: 0 auto;
            padding: 40px 48px 0;
            border-top: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            color: var(--f8a5-gray);
            font-size: 12px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .f8a5-hero-wrapper { flex-direction: column; text-align: center; }
            .f8a5-hero-content { order: 1; }
            .f8a5-hero-visual { order: 2; width: 100%; }
            .f8a5-hero-subtitle { margin-left: auto; margin-right: auto; }
            .f8a5-cta-group { justify-content: center; }
        }

        @media (max-width: 768px) {
            .f8a5-nav-container { height: auto; padding: 16px; justify-content: center; }
            .f8a5-logo { margin-bottom: 16px; width: 100%; justify-content: center; }
            .f8a5-menu { gap: 12px; justify-content: center; }
            .f8a5-download-section { margin: 0 16px 64px; padding: 48px 24px; }
            .f8a5-grid { padding: 0 24px; }
            .f8a5-hero { padding-top: 120px; }
            .f8a5-news-img { flex: 0 0 100%; }
        }