:root {
            --primary-color: #3a6d9c; /* 你指定的色號 */
            --accent-color: #f39c12;  /* 點綴用的橙金色 */
            --dark-bg: #1e222d;
            --light-bg: #f5f7f9;
            --text-main: #333;
        }

        body {
            font-family: 'Noto Sans TC', sans-serif;
            margin: 0;
            padding: 0;
            color: var(--text-main);
            line-height: 1.6;
        }

        /* 導覽列 */
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 8%;
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: var(--primary-color);
            letter-spacing: 1px;

        }

        .nav-links a {
            margin-left: 25px;
            text-decoration: none;
            color: #555;
            transition: 0.3s;
        }

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

        .btn-cta {
            background: var(--primary-color);
            color: white !important;
            padding: 8px 20px;
            border-radius: 4px;
            font-weight: bold;
        }

        /* 英雄視覺區 */
        .hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), 
                        url('https://images.unsplash.com/photo-1590283603385-17ffb3a7f29f?auto=format&fit=crop&q=80&w=1600');
            height: 60vh;
            background-size: cover;
            background-position: center;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            text-align: center;
        }

        .hero h1 { font-size: 3rem; margin-bottom: 1rem; }
        .hero p { font-size: 1.2rem; max-width: 600px; opacity: 0.9; }

        /* 市場行情區塊 */
        .market-section {
            padding: 60px 8%;
            background: var(--light-bg);
        }

        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }

        .market-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .market-card {
            background: white;
            padding: 25px;
            border-top: 4px solid var(--primary-color);
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }

        .market-card:hover { transform: translateY(-5px); }

        .price { font-size: 28px; font-weight: bold; margin: 10px 0; color: var(--primary-color); }
        .up { color: #2ecc71; font-weight: bold; }

        /* 特色區塊 */
        .features {
            padding: 80px 8%;
    background: var(--primary-color);
    color: white;
    display: grid;
grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); 
    gap: 40px;
    text-align: center;
        }

        .feature-item:hover {
    background: rgba(255, 255, 255, 0.1); /* 鼠標懸停時微亮效果 */
}

.feature-item h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: #fff;
}

.feature-item p {
    font-size: 0.95rem;
    opacity: 0.85;
    line-height: 1.7;
}

/* 關於我們英雄區塊 */
        .about-hero {
            background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), 
                        url('https://images.unsplash.com/photo-1543286341-267929d06636?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1600&q=80') center/cover;
            height: 40vh; /* 相對較短，強調專業性 */
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            text-align: center;
            padding: 0 8%;
        }
        .about-hero h1 {
            font-size: 3.5rem;
            margin-bottom: 0.5rem;
            text-shadow: 0 2px 5px rgba(0,0,0,0.3);
        }
        .about-hero p {
            font-size: 1.2rem;
            max-width: 800px;
            opacity: 0.9;
        }


        /* 內容區塊 */
        .content-section {
            padding: 60px 8%;
            max-width: 1200px;
            margin: 0 auto;
        }
        .content-section h2 {
            font-size: 2.5rem;
            color: var(--primary-color);
            text-align: center;
            margin-bottom: 40px;
            position: relative;
        }
        .content-section h2::after {
            content: '';
            display: block;
            width: 80px;
            height: 3px;
            background: var(--accent-color);
            margin: 15px auto 0;
        }

        .text-block {
            margin-bottom: 40px;
            font-size: 1.1rem;
            color: var(--text-light);
        }
        .text-block h3 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            border-left: 4px solid var(--accent-color);
            padding-left: 15px;
        }
        .text-block p {
            margin-bottom: 1rem;
        }

        /* 核心價值區塊 */
        .values-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 50px;
            text-align: center;
        }
        .value-card {
            background: var(--light-bg);
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .value-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.12);
        }
        .value-card h3 {
            color: var(--primary-color);
            font-size: 1.6rem;
            margin-bottom: 15px;
        }
        .value-card p {
            color: var(--text-light);
            font-size: 0.95rem;
        }

        /* 里程碑/時間軸 (簡化版，可擴展) */
        .milestones {
            padding: 60px 8%;
            background: var(--light-bg);
            text-align: center;
        }
        .milestones h2 {
             font-size: 2.5rem;
            color: var(--primary-color);
            text-align: center;
            margin-bottom: 40px;
            position: relative;
        }
        .milestones h2::after {
            content: '';
            display: block;
            width: 80px;
            height: 3px;
            background: var(--accent-color);
            margin: 15px auto 0;
        }
        .milestone-item {
            background: white;
            margin: 20px auto;
            padding: 25px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            max-width: 700px;
            text-align: left;
            border-left: 5px solid var(--primary-color);
        }
        .milestone-item h4 {
            font-size: 1.5rem;
            color: var(--primary-color);
            margin-bottom: 5px;
        }
        .milestone-item p {
            color: var(--text-light);
            font-size: 1rem;
        }

        footer {
            background: #1e222d; color: #a0a6b5; padding: 0 8% 30px; font-size: 13px; line-height: 1.8; text-align: center;
        }
        footer a {
            color: var(--primary-color);
            text-decoration: none;
        }

        /* 交易系統區塊樣式 */
        .trading-system {
            padding: 100px 8%;
            background: #ffffff;
            overflow: hidden;
        }

        .system-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

@media (max-width: 992px) {
    .system-container { grid-template-columns: 1fr; text-align: center; }
}

.badge {
    color: var(--primary-color);
    background: rgba(58, 109, 156, 0.1);
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 14px;
    display: inline-block;
    margin-bottom: 20px;
}

.system-text h2 {
    font-size: 2.8rem;
    color: var(--primary-color);
    margin-bottom: 25px;
    line-height: 1.3;
}

.system-text p {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.system-features {
    list-style: none;
    padding: 0;
    margin-bottom: 40px;
}

.system-features li {
    margin-bottom: 12px;
    font-weight: 500;
    color: #444;
    display: flex;
    align-items: center;
}

@media (max-width: 992px) {
    .system-features li { justify-content: center; }
}

.download-buttons {
    display: flex;
    gap: 20px;
}

@media (max-width: 992px) {
    .download-buttons { justify-content: center; }
}

.btn-download {
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 15px 35px;
    border-radius: 5px;
    font-weight: bold;
    transition: 0.3s;
}

.btn-app {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
    padding: 13px 35px;
    border-radius: 5px;
    font-weight: bold;
    transition: 0.3s;
}

.btn-download:hover { background: #2a5a82; }
.btn-app:hover { background: var(--primary-color); color: white; }

/* 聯絡頁面佈局 */
        .contact-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            padding: 80px 8%;
            max-width: 1200px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .contact-container { grid-template-columns: 1fr; }
        }

        /* 左側：聯絡資訊 */
        .contact-info h2 {
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-bottom: 20px;
        }

        .info-item {
            margin-bottom: 30px;
        }

        .info-item h4 {
            margin: 0 0 5px 0;
            color: var(--primary-color);
            font-size: 1.2rem;
        }

        .info-item p { margin: 0; color: #666; }

        /* 右側：表單 */
        .contact-form {
            background: #fff;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: bold;
        }

        .form-group input, .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 4px;
            box-sizing: border-box; /* 確保寬度包含 padding */
        }

        .btn-submit {
            background: var(--primary-color);
            color: white;
            padding: 15px 30px;
            border: none;
            border-radius: 4px;
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
            width: 100%;
            transition: background 0.3s;
        }

        .btn-submit:hover {
            background: #2a5a82;
        }

/* 內容容器 */
        .legal-container {
            max-width: 900px;
            margin: 50px auto;
            background: #fff;
            padding: 60px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
            border-radius: 8px;
        }

        .legal-container h1 {
            color: var(--primary-color);
            text-align: center;
            margin-bottom: 40px;
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 20px;
        }

        .legal-container h2 {
            color: var(--primary-color);
            font-size: 1.4rem;
            margin-top: 35px;
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
        }

        .legal-container p, li {
            color: var(--text-light);
            font-size: 0.95rem;
            text-align: justify;
        }

        .important-note {
            background: #fff3cd;
            border: 1px solid #ffeeba;
            padding: 20px;
            border-radius: 4px;
            font-weight: bold;
            color: #856404;
            margin-bottom: 30px;
        }