:root {
            --primary: #4f46e5;
            --primary-dark: #4338ca;
            --accent: #f472b6;
            --text-main: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f9fafb;
            --white: #ffffff;
            --radius: 14px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 4px 10px -2px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, 0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background: var(--white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .flex-between {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Header */
        header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        header.scrolled {
            box-shadow: var(--shadow);
        }
        .nav-container {
            height: 66px;
        }
        .logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.4px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo .rocket-icon {
            display: inline-block;
            font-size: 1.6rem;
            animation: float 2.5s ease-in-out infinite;
        }
        @keyframes float {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-4px);
            }
        }
        .logo span {
            color: var(--text-main);
            font-weight: 700;
        }
        nav ul {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        nav a {
            font-weight: 500;
            color: var(--text-light);
            font-size: 0.93rem;
            position: relative;
            padding: 4px 0;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width var(--transition);
        }
        nav a:hover::after,
        nav a.active::after {
            width: 100%;
        }
        nav a:hover,
        nav a.active {
            color: var(--primary);
        }
        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 8px 18px !important;
            border-radius: 22px;
            font-weight: 600 !important;
            font-size: 0.88rem !important;
            transition: background var(--transition), transform var(--transition) !important;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .nav-cta::after {
            display: none !important;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-direction: column;
            gap: 5px;
            z-index: 1001;
        }
        .mobile-menu-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--text-main);
            border-radius: 3px;
            transition: var(--transition);
        }

        /* Hero */
        .hero {
            padding: 130px 0 70px;
            background: linear-gradient(160deg, #eef2ff 0%, #fdf2f8 40%, #f0f9ff 100%);
            overflow: hidden;
            position: relative;
        }
        .hero::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.07) 0%, transparent 70%);
            top: -120px;
            right: -80px;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(244, 114, 182, 0.06) 0%, transparent 70%);
            bottom: -60px;
            left: -40px;
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            background: #fff;
            border-radius: 24px;
            font-size: 0.84rem;
            font-weight: 600;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
            margin-bottom: 22px;
            border: 1px solid #e0e7ff;
        }
        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(34, 197, 94, 0);
            }
        }
        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 850;
            line-height: 1.18;
            margin-bottom: 18px;
            color: var(--text-main);
            letter-spacing: -0.6px;
        }
        .hero-content h1 .gradient-text {
            background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 40%, #ec4899 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.08rem;
            color: var(--text-light);
            margin-bottom: 28px;
            max-width: 480px;
            line-height: 1.7;
        }
        .hero-stats {
            display: flex;
            gap: 28px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .stat-num {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 4px;
        }
        .btn-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn {
            padding: 13px 30px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.98rem;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 7px;
            border: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px -8px rgba(79, 70, 229, 0.4);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px -6px rgba(79, 70, 229, 0.5);
        }
        .btn-outline {
            background: #fff;
            color: var(--text-main);
            border: 2px solid #e5e7eb;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #fafaff;
        }
        /* 新增GitHub入口链接样式 */
        .github-row-link {
            flex: 0 0 100%;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-top: 12px;
            padding: 10px 24px;
            background: #f5f3ff;
            color: var(--primary);
            border-radius: 28px;
            font-weight: 600;
            text-decoration: none;
            border: 1px solid #e0e7ff;
            transition: all var(--transition);
            font-size: 0.95rem;
        }
        .github-row-link:hover {
            background: #ede9fe;
            border-color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 6px 15px rgba(79, 70, 229, 0.15);
        }
        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 420px;
        }
        .platform-orb {
            position: absolute;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: #fff;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            z-index: 3;
            animation: orbit-float 6s ease-in-out infinite;
        }
        .platform-orb:nth-child(1) {
            top: 8%;
            left: 5%;
            animation-delay: 0s;
        }
        .platform-orb:nth-child(2) {
            top: 5%;
            right: 8%;
            animation-delay: 1.2s;
        }
        .platform-orb:nth-child(3) {
            bottom: 10%;
            left: 10%;
            animation-delay: 2.4s;
        }
        .platform-orb:nth-child(4) {
            bottom: 8%;
            right: 6%;
            animation-delay: 3.6s;
        }
        @keyframes orbit-float {
            0%,
            100% {
                transform: translateY(0) scale(1);
            }
            25% {
                transform: translateY(-14px) scale(1.05);
            }
            50% {
                transform: translateY(-6px) scale(0.96);
            }
            75% {
                transform: translateY(-18px) scale(1.04);
            }
        }
        .app-window {
            width: 330px;
            max-width: 90%;
            background: #fff;
            border-radius: 18px;
            box-shadow: var(--shadow-lg);
            border: 7px solid #e5e7eb;
            position: relative;
            z-index: 2;
            overflow: hidden;
        }
        .app-header {
            height: 38px;
            background: #f3f4f6;
            display: flex;
            align-items: center;
            padding: 0 14px;
            gap: 7px;
            border-bottom: 1px solid #e5e7eb;
        }
        .dot {
            width: 11px;
            height: 11px;
            border-radius: 50%;
        }
        .dot.red {
            background: #ef4444;
        }
        .dot.yellow {
            background: #eab308;
        }
        .dot.green {
            background: #22c55e;
        }
        .app-body {
            padding: 18px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            background: #fff;
        }
        .app-status {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-main);
        }
        .app-status .live {
            color: #22c55e;
            animation: pulse-dot 2s infinite;
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
            margin-right: 6px;
            vertical-align: middle;
        }
        .speed-bars {
            display: flex;
            align-items: flex-end;
            gap: 5px;
            height: 90px;
            background: linear-gradient(180deg, rgba(79, 70, 229, 0.06) 0%, transparent 100%);
            border-radius: 10px;
            padding: 8px 10px;
        }
        .speed-bar {
            flex: 1;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
            opacity: 0.75;
            animation: bar-breathe 2.2s ease-in-out infinite;
            min-width: 8px;
        }
        .speed-bar:nth-child(1) {
            height: 35%;
            animation-delay: 0s;
        }
        .speed-bar:nth-child(2) {
            height: 50%;
            animation-delay: 0.18s;
        }
        .speed-bar:nth-child(3) {
            height: 40%;
            animation-delay: 0.36s;
        }
        .speed-bar:nth-child(4) {
            height: 65%;
            animation-delay: 0.54s;
        }
        .speed-bar:nth-child(5) {
            height: 55%;
            animation-delay: 0.72s;
        }
        .speed-bar:nth-child(6) {
            height: 78%;
            animation-delay: 0.9s;
        }
        .speed-bar:nth-child(7) {
            height: 48%;
            animation-delay: 1.08s;
        }
        .speed-bar:nth-child(8) {
            height: 60%;
            animation-delay: 1.26s;
        }
        @keyframes bar-breathe {
            0%,
            100% {
                transform: scaleY(1);
                opacity: 0.75;
            }
            50% {
                transform: scaleY(1.25);
                opacity: 1;
            }
        }
        .node-row {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 10px;
            background: #f9fafb;
            font-size: 0.85rem;
        }
        .node-row .flag {
            font-size: 1.3rem;
        }
        .node-row .node-name {
            flex: 1;
            font-weight: 500;
            color: var(--text-main);
        }
        .node-row .ping {
            color: #22c55e;
            font-weight: 700;
            font-size: 0.8rem;
        }
        .node-row.dim {
            opacity: 0.5;
        }
        .node-row.dim .ping {
            color: var(--text-light);
        }

        /* Trust Bar */
        .trust-bar {
            background: #fff;
            border-bottom: 1px solid #f3f4f6;
            padding: 18px 0;
            overflow: hidden;
            position: relative;
        }
        .trust-bar .track {
            display: flex;
            gap: 50px;
            animation: scroll-trust 20s linear infinite;
            white-space: nowrap;
        }
        .trust-bar .track span {
            font-weight: 600;
            color: #9ca3af;
            font-size: 0.85rem;
            letter-spacing: 0.4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .trust-bar .track span em {
            font-style: normal;
            color: var(--primary);
            font-weight: 700;
        }
        @keyframes scroll-trust {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }

        /* Sections */
        .features {
            padding: 75px 0;
            background: #fff;
        }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 55px;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: #eef2ff;
            color: var(--primary);
            border-radius: 18px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .section-header h2 {
            font-size: 2.1rem;
            font-weight: 750;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            color: var(--text-light);
            font-size: 0.98rem;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
            gap: 24px;
        }
        .feature-card {
            padding: 28px 24px;
            border-radius: var(--radius);
            background: #fff;
            border: 1px solid #f3f4f6;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #e0e7ff;
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .icon-box {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-size: 1.4rem;
        }
        .icon-box.indigo {
            background: #eef2ff;
            color: #4f46e5;
        }
        .icon-box.violet {
            background: #f5f3ff;
            color: #7c3aed;
        }
        .icon-box.rose {
            background: #fff1f2;
            color: #e11d48;
        }
        .icon-box.teal {
            background: #f0fdfa;
            color: #0d9488;
        }
        .icon-box.amber {
            background: #fffbeb;
            color: #d97706;
        }
        .icon-box.sky {
            background: #f0f9ff;
            color: #0284c7;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* Protocol Section */
        .protocol-section {
            padding: 65px 0;
            background: var(--bg-light);
        }
        .protocol-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 16px;
            text-align: center;
        }
        .protocol-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 22px 14px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .protocol-card:hover {
            border-color: #e0e7ff;
            box-shadow: var(--shadow);
        }
        .protocol-card .proto-icon {
            font-size: 2rem;
            margin-bottom: 10px;
        }
        .protocol-card .proto-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-main);
        }
        .protocol-card .proto-desc {
            font-size: 0.78rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #1e1b4b 100%);
            padding: 70px 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            top: -80px;
            right: -100px;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            margin-bottom: 16px;
            font-weight: 750;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: #c7d2fe;
            margin-bottom: 28px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            font-size: 1rem;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-primary {
            background: #fff;
            color: var(--primary);
            font-size: 1.05rem;
            padding: 15px 38px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-primary:hover {
            background: #eef2ff;
            transform: translateY(-3px);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.3);
        }

        /* Footer */
        footer {
            background: #111827;
            color: #9ca3af;
            padding: 55px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
            border-bottom: 1px solid #374151;
            padding-bottom: 36px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 12px;
            font-weight: 700;
        }
        .footer-brand p {
            line-height: 1.7;
            font-size: 0.9rem;
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            margin-bottom: 16px;
            font-size: 1rem;
            font-weight: 600;
        }
        .footer-col ul li {
            margin-bottom: 9px;
        }
        .footer-col a {
            font-size: 0.9rem;
        }
        .footer-col a:hover {
            color: #fff;
        }
        .copyright {
            text-align: center;
            font-size: 0.85rem;
            color: #6b7280;
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: flex;
            }
            nav ul {
                position: fixed;
                top: 0;
                right: -100%;
                width: 260px;
                height: 100vh;
                background: #fff;
                flex-direction: column;
                padding: 80px 30px 30px;
                gap: 20px;
                box-shadow: var(--shadow-lg);
                transition: right var(--transition);
                z-index: 999;
            }
            nav ul.open {
                right: 0;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
                gap: 30px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content p {
                margin: 0 auto 24px;
            }
            .hero-stats {
                justify-content: center;
            }
            .btn-group {
                justify-content: center;
            }
            .hero-visual {
                min-height: 300px;
            }
            .platform-orb {
                width: 38px;
                height: 38px;
                font-size: 1.1rem;
            }
            .app-window {
                width: 260px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .trust-bar .track {
                gap: 30px;
                animation-duration: 14s;
            }
            .protocol-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .github-row-link {
                flex: 0 0 100%;
                width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
        }
        @media (max-width: 480px) {
            .hero-content h1 {
                font-size: 1.65rem;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat .stat-num {
                font-size: 1.3rem;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .protocol-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .platform-orb {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }