:root {
            --kmnh1y-primary: #ee4126;
            --kmnh1y-primary-dark: #c32e1a;
            --kmnh1y-secondary: #2b2e3a;
            --kmnh1y-text: #1d1d1f;
            --kmnh1y-text-light: #86868b;
            --kmnh1y-bg: #ffffff;
            --kmnh1y-bg-soft: #f5f5f7;
            --kmnh1y-glass: rgba(255, 255, 255, 0.8);
            --kmnh1y-radius: 20px;
            --kmnh1y-gap: 8px;
            --kmnh1y-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: "SF Pro SC", "SF Pro Display", "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
            color: var(--kmnh1y-text);
            background-color: var(--kmnh1y-bg);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--kmnh1y-transition);
        }

        img {
            max-width: 100%;
            display: block;
        }

        /* Layout Helpers */
        .kmnh1y-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 40px;
        }

        .kmnh1y-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .kmnh1y-grid {
            display: grid;
            gap: 32px;
        }

        /* Navigation */
        .kmnh1y-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 72px;
            background: var(--kmnh1y-glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .kmnh1y-nav-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 100%;
        }

        .kmnh1y-logo {
            height: 32px;
            min-width: 0;
        }

        .kmnh1y-logo img {
            height: 100%;
            width: auto;
        }

        .kmnh1y-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
        }

        .kmnh1y-menu-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--kmnh1y-secondary);
            padding: 8px 4px;
            position: relative;
        }

        .kmnh1y-menu-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--kmnh1y-primary);
            transition: var(--kmnh1y-transition);
            transform: translateX(-50%);
        }

        .kmnh1y-menu-link:hover::after {
            width: 100%;
        }

        /* Hero Section */
        .kmnh1y-hero {
            padding-top: 120px;
            padding-bottom: 80px;
            background: radial-gradient(circle at 90% 10%, rgba(238, 65, 38, 0.05) 0%, transparent 40%);
        }

        .kmnh1y-hero-wrap {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .kmnh1y-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .kmnh1y-tag {
            display: inline-block;
            background: rgba(238, 65, 38, 0.1);
            color: var(--kmnh1y-primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .kmnh1y-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 700;
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .kmnh1y-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--kmnh1y-text-light);
            margin-bottom: 40px;
            max-width: 600px;
            line-height: 1.6;
        }

        .kmnh1y-hero-image {
            flex: 1.2;
            min-width: 320px;
            border-radius: 32px;
            overflow: hidden;
            box-shadow: 0 40px 80px rgba(0,0,0,0.1);
            transform: perspective(1000px) rotateY(-5deg);
            transition: var(--kmnh1y-transition);
        }

        .kmnh1y-hero-image:hover {
            transform: perspective(1000px) rotateY(0deg) scale(1.02);
        }

        /* Platform Hub */
        .kmnh1y-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .kmnh1y-section-title h2 {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.8rem);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .kmnh1y-platform-grid {
            grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
        }

        .kmnh1y-platform-card {
            background: var(--kmnh1y-bg-soft);
            border-radius: 28px;
            padding: 48px;
            transition: var(--kmnh1y-transition);
            display: flex;
            flex-direction: column;
            border: 1px solid transparent;
        }

        .kmnh1y-platform-card:hover {
            background: var(--kmnh1y-bg);
            border-color: rgba(238, 65, 38, 0.2);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            transform: translateY(-8px);
        }

        .kmnh1y-platform-header {
            margin-bottom: 24px;
        }

        .kmnh1y-platform-name {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .kmnh1y-version-tag {
            font-size: 13px;
            color: var(--kmnh1y-text-light);
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }

        .kmnh1y-highlight-list {
            list-style: none;
            margin-bottom: 32px;
            flex-grow: 1;
        }

        .kmnh1y-highlight-item {
            padding: 8px 0;
            font-size: 16px;
            display: flex;
            align-items: center;
            color: var(--kmnh1y-secondary);
        }

        .kmnh1y-highlight-item::before {
            content: "✓";
            color: var(--kmnh1y-primary);
            margin-right: 12px;
            font-weight: bold;
        }

        .kmnh1y-dl-btn {
            background: var(--kmnh1y-secondary);
            color: white;
            padding: 16px 32px;
            border-radius: 14px;
            font-weight: 600;
            text-align: center;
            display: block;
            margin-bottom: 16px;
        }

        .kmnh1y-dl-btn:hover {
            background: var(--kmnh1y-primary);
        }

        .kmnh1y-metrics {
            font-size: 12px;
            color: var(--kmnh1y-text-light);
            display: flex;
            justify-content: space-between;
        }

        /* Feature Sections */
        .kmnh1y-feature-row {
            padding: 100px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 80px;
        }

        .kmnh1y-feature-row:nth-child(even) {
            flex-direction: row-reverse;
        }

        .kmnh1y-feature-img {
            flex: 1;
            min-width: 320px;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

        .kmnh1y-feature-info {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .kmnh1y-feature-info h3 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .kmnh1y-feature-info p {
            font-size: 18px;
            color: var(--kmnh1y-text-light);
            margin-bottom: 32px;
        }

        /* FAQ Section */
        .kmnh1y-faq {
            background: var(--kmnh1y-bg-soft);
            padding: 100px 0;
        }

        .kmnh1y-faq-grid {
            max-width: 900px;
            margin: 0 auto;
            grid-template-columns: 1fr;
        }

        .kmnh1y-faq-item {
            background: var(--kmnh1y-bg);
            padding: 32px;
            border-radius: 16px;
            cursor: pointer;
            transition: var(--kmnh1y-transition);
        }

        .kmnh1y-faq-question {
            font-size: 18px;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .kmnh1y-faq-answer {
            margin-top: 16px;
            color: var(--kmnh1y-text-light);
            font-size: 16px;
            display: none;
        }

        .kmnh1y-faq-item.active .kmnh1y-faq-answer {
            display: block;
        }

        /* Footer */
        .kmnh1y-footer {
            padding: 80px 0 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .kmnh1y-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 40px;
            margin-bottom: 60px;
        }

        .kmnh1y-footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--kmnh1y-primary);
        }

        .kmnh1y-footer-links h5 {
            font-size: 15px;
            margin-bottom: 20px;
            color: var(--kmnh1y-secondary);
        }

        .kmnh1y-footer-links ul {
            list-style: none;
        }

        .kmnh1y-footer-links li {
            margin-bottom: 12px;
        }

        .kmnh1y-footer-links a {
            font-size: 14px;
            color: var(--kmnh1y-text-light);
        }

        .kmnh1y-footer-links a:hover {
            color: var(--kmnh1y-primary);
        }

        .kmnh1y-bottom {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
            font-size: 13px;
            color: var(--kmnh1y-text-light);
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .kmnh1y-container { padding: 0 24px; }
            .kmnh1y-hero-wrap { flex-direction: column; text-align: center; }
            .kmnh1y-hero-subtitle { margin: 0 auto 40px; }
            .kmnh1y-hero-image { transform: none; width: 100%; }
        }

        @media (max-width: 768px) {
            .kmnh1y-platform-grid { grid-template-columns: 1fr; }
            .kmnh1y-feature-row { flex-direction: column !important; gap: 40px; padding: 60px 0; }
            .kmnh1y-navbar { height: auto; padding: 16px 0; }
            .kmnh1y-menu { display: none; }
            .kmnh1y-hero-title { font-size: 2.5rem; }
        }