:root {
    --carbon-black: #1A1A1A;
    --pro-green: #2E7D32;
    --kinetic-blue: #1A237E;
    --data-cyan: #00E5FF;
    --text-light: #F5F5F5;
    --text-muted: #B0B0B0;
    --accent-glow: rgba(26, 35, 126, 0.5);
}

body {
    background-color: var(--carbon-black);
    color: var(--text-light);
    font-family: 'Inter', 'Noto Sans TC', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

.navbar {
    background-color: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 0;
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--text-light) !important;
}

.nav-link {
    color: var(--text-muted) !important;
    font-weight: 500;
    margin: 0 1rem;
    transition: all 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--data-cyan) !important;
}

.btn-primary {
    background-color: var(--kinetic-blue);
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 0;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background-color: #283593;
    box-shadow: 0 0 20px var(--accent-glow);
}

.section-title {
    font-weight: 800;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--pro-green);
}

footer {
    background-color: #0D0D0D;
    padding: 5rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    display: block;
    margin-bottom: 0.8rem;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--data-cyan);
}

/* 骨架浮水印效果 */
.skeleton-watermark {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 2px 2px, rgba(26, 35, 126, 0.05) 1px, transparent 0);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: -1;
}

/* 數據掃描過後的點亮感 */
.data-scan-btn {
    position: relative;
    border: 1px solid var(--kinetic-blue);
    background: transparent;
    color: var(--text-light);
    padding: 10px 25px;
    cursor: pointer;
    transition: 0.5s;
}

.data-scan-btn:hover {
    background: var(--kinetic-blue);
    box-shadow: 0 0 15px var(--data-cyan);
    text-shadow: 0 0 5px #fff;
}

.data-scan-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.2), transparent);
    transition: 0.5s;
}

.data-scan-btn:hover::before {
    left: 100%;
}