:root {
            --primary: #2563eb;
            --secondary: #7c3aed;
            --accent: #0891b2;
            --dark: #ffffff;
            --dark-card: #f8f9fa;
            --text: #1f2937;
            --text-secondary: #6b7280;
            --gradient-1: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
            --gradient-2: linear-gradient(135deg, #0891b2 0%, #2563eb 100%);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
            --border: #e5e7eb;
        }

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

        body {
            font-family: 'Noto Sans SC', sans-serif;
            background: var(--dark);
            color: var(--text);
            overflow-x: hidden;
            line-height: 1.6;
            max-width: 100vw;
        }

        /* Mobile-first container */
        .container {
            max-width: 480px;
            margin: 0 auto;
        }

        /* Animated Background */
        .bg-animation {
            display: none;
        }

        /* Navigation */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            z-index: 1000;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }

        .nav-container {
            max-width: 480px;
            margin: 0 auto;
            padding: 1rem 1rem;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.3rem;
            font-weight: 900;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
        }

        .nav-links {
            display: none;
        }

        /* Hero Section */
        .hero {
            position: relative;
            padding: 75px 1rem 20px;
            text-align: center;
            overflow: hidden;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 480px;
            margin: 0 auto;
        }

        .announcement {
            display: block;
            background: white;
            border: 1px solid var(--border);
            padding: 0.8rem 1rem;
            border-radius: 12px;
            margin-bottom: 0.3rem;
            font-size: 0.8rem;
            color: var(--text);
            overflow: hidden;
            position: relative;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }

        .announcement::before {
            content: '📢';
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.2rem;
            z-index: 2;
            background: white;
            padding-right: 0.5rem;
            animation: shake 2s ease-in-out infinite;
        }

        /* Left gradient mask to fade text near icon */
        .announcement::after {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3rem;
            background: linear-gradient(to right, white 0%, white 60%, transparent 100%);
            pointer-events: none;
            z-index: 1;
        }

        @keyframes shake {
            0%, 100% { transform: translateY(-50%) rotate(0deg); }
            10%, 30%, 50%, 70%, 90% { transform: translateY(-50%) rotate(-10deg); }
            20%, 40%, 60%, 80% { transform: translateY(-50%) rotate(10deg); }
        }

        .announcement-content {
            display: flex;
            align-items: center;
            padding-left: 3rem;
            white-space: nowrap;
            animation: scroll 25s linear infinite;
        }

        @keyframes scroll {
            0% {
                transform: translateX(0%);
            }
            100% {
                transform: translateX(-50%);
            }
        }

        .announcement-content:hover {
            animation-play-state: paused;
        }

        .announcement-text {
            display: inline-block;
            padding-right: 3rem;
            font-weight: 500;
        }

        .announcement-text span {
            margin: 0 0.5rem;
        }

        .star {
            color: var(--primary);
            font-size: 0.9rem;
        }

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

        .hero h1 {
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 1rem;
            line-height: 1.2;
            animation: fadeInUp 1s ease-out 0.2s both;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(40px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero h1 .gradient-text {
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            animation: fadeInUp 1s ease-out 0.4s both;
        }

        /* Section Styles */
        section {
            position: relative;
            padding: 30px 1rem;
            max-width: 480px;
            margin: 0 auto;
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 1.2rem;
            text-align: center;
            position: relative;
            color: var(--text);
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* App Grid */
        .app-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            margin-top: 1rem;
        }

        .app-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
            cursor: pointer;
            text-align: center;
            position: relative;
        }

        .app-card:active {
            transform: scale(0.97);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }

        /* Click ripple effect */
        .app-card::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.2);
            transform: translate(-50%, -50%);
            transition: width 0.6s ease, height 0.6s ease, opacity 0.6s ease;
            opacity: 0;
            pointer-events: none;
        }

        .app-card.clicked::after {
            width: 200%;
            height: 200%;
            opacity: 0;
        }

        .app-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--gradient-1);
            margin: 0 auto 0.8rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        /* Icon bounce animation on click */
        @keyframes iconBounce {
            0%, 100% {
                transform: scale(1);
            }
            25% {
                transform: scale(0.85);
            }
            50% {
                transform: scale(1.1);
            }
            75% {
                transform: scale(0.95);
            }
        }

        .app-icon.bounce {
            animation: iconBounce 0.5s ease;
        }

        /* Success checkmark animation */
        @keyframes checkmark {
            0% {
                opacity: 0;
                transform: scale(0) rotate(45deg);
            }
            50% {
                opacity: 1;
                transform: scale(1.2) rotate(45deg);
            }
            100% {
                opacity: 0;
                transform: scale(1) rotate(45deg);
            }
        }

        .app-card .checkmark {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 30px;
            height: 30px;
            margin-left: -15px;
            margin-top: -15px;
            opacity: 0;
            pointer-events: none;
        }

        .app-card .checkmark::before {
            content: '✓';
            position: absolute;
            color: var(--primary);
            font-size: 30px;
            font-weight: bold;
            animation: checkmark 0.8s ease;
        }

        .app-card.downloading .checkmark::before {
            animation: checkmark 0.8s ease;
        }

        .app-card-content {
            position: relative;
            padding: 1.2rem 0.8rem;
        }

        .app-name {
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
            line-height: 1.3;
            color: var(--text);
        }

        .app-type {
            color: var(--text-secondary);
            font-size: 0.7rem;
            margin-bottom: 0.8rem;
            font-weight: 400;
        }

        .download-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: white;
            padding: 0.5rem 0;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.75rem;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            width: 85%;
        }

        .download-btn:active {
            transform: scale(0.95);
            background: #1d4ed8;
        }


        /* Footer */
        .stats {
            background: white;
            border-radius: 16px;
            padding: 2rem 1rem;
            margin: 1.5rem 0;
            border: 1px solid var(--border);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            text-align: center;
        }

        .stat-item h3 {
            font-size: 2rem;
            font-weight: 800;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.3rem;
        }

        .stat-item p {
            color: var(--text-secondary);
            font-size: 0.85rem;
        }

        /* Bottom Navigation Bar */
        .bottom-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            border-top: 1px solid var(--border);
            padding: 0.8rem 0;
            z-index: 1000;
            box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.05);
        }

        .bottom-nav-container {
            max-width: 480px;
            margin: 0 auto;
            display: flex;
            justify-content: space-around;
            align-items: center;
            padding: 0 0.5rem;
        }

        .bottom-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.2rem;
            text-decoration: none;
            color: var(--text-secondary);
            transition: all 0.2s ease;
            padding: 0.3rem 0.5rem;
            border-radius: 10px;
            flex: 1;
            max-width: 80px;
        }

        .bottom-nav-item:active {
            background: #eff6ff;
        }

        .bottom-nav-item.active {
            color: var(--primary);
        }

        .bottom-nav-icon {
            font-size: 1.4rem;
            transition: transform 0.2s ease;
            font-style: normal;
        }

        .bottom-nav-item.active .bottom-nav-icon {
            transform: scale(1.05);
        }

        /* Simple icon styles */
        .icon-home::before {
            content: '';
            display: block;
            width: 24px;
            height: 24px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22'/%3E%3C/svg%3E");
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
        }

        .bottom-nav-item.active .icon-home::before {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%232563eb' stroke='%232563eb' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22'/%3E%3C/svg%3E");
        }

        .icon-card::before {
            content: '';
            display: block;
            width: 24px;
            height: 24px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='1' y='4' width='22' height='16' rx='2' ry='2'/%3E%3Cline x1='1' y1='10' x2='23' y2='10'/%3E%3C/svg%3E");
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
        }

        .bottom-nav-item.active .icon-card::before {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232563eb' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='1' y='4' width='22' height='16' rx='2' ry='2'/%3E%3Cline x1='1' y1='10' x2='23' y2='10'/%3E%3C/svg%3E");
        }

        .icon-order::before {
            content: '';
            display: block;
            width: 24px;
            height: 24px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpolyline points='14 2 14 8 20 8'/%3E%3Cline x1='16' y1='13' x2='8' y2='13'/%3E%3Cline x1='16' y1='17' x2='8' y2='17'/%3E%3Cpolyline points='10 9 9 9 8 9'/%3E%3C/svg%3E");
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
        }

        .bottom-nav-item.active .icon-order::before {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232563eb' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpolyline points='14 2 14 8 20 8'/%3E%3Cline x1='16' y1='13' x2='8' y2='13'/%3E%3Cline x1='16' y1='17' x2='8' y2='17'/%3E%3Cpolyline points='10 9 9 9 8 9'/%3E%3C/svg%3E");
        }

        .icon-help::before {
            content: '';
            display: block;
            width: 24px;
            height: 24px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3'/%3E%3Cline x1='12' y1='17' x2='12.01' y2='17'/%3E%3C/svg%3E");
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
        }

        .bottom-nav-item.active .icon-help::before {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232563eb' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3'/%3E%3Cline x1='12' y1='17' x2='12.01' y2='17'/%3E%3C/svg%3E");
        }

        .bottom-nav-label {
            font-size: 0.65rem;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        /* Footer */
        footer {
            position: relative;
            padding: 2rem 1rem 5rem;
            text-align: center;
            border-top: 1px solid var(--border);
            margin-top: 1.5rem;
        }

        footer p {
            color: var(--text-secondary);
            font-size: 0.8rem;
        }


        /* Scroll animations */
        .fade-in {
            opacity: 0;
            animation: fadeIn 0.8s ease-out forwards;
        }

        @keyframes fadeIn {
            to {
                opacity: 1;
            }
        }

        .slide-up {
            opacity: 0;
            transform: translateY(30px);
            animation: slideUp 0.8s ease-out forwards;
        }

        @keyframes slideUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }