:root {
    --cedar-brown: #4E342E;
    --lab-gray: #B0BEC5;
    --eco-green: #689F38;
    --pulse-orange: #FB8C00;
    --matte-black: #1A1A1A;
    --off-white: #F5F5F5;
}

body {
    background-color: var(--cedar-brown);
    color: var(--off-white);
    font-family: 'Playfair Display', serif; /* 襯線體展現經典美學 */
    line-height: 1.6;
    overflow-x: hidden;
}

.mono-font {
    font-family: 'JetBrains Mono', 'Courier New', monospace; /* 等寬體代表數據感 */
}

.navbar {
    background-color: rgba(26, 26, 26, 0.95);
    border-bottom: 1px solid var(--lab-gray);
    padding: 1rem 2rem;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--lab-gray) !important;
}

.nav-link {
    color: var(--off-white) !important;
    margin-left: 1.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--pulse-orange) !important;
}

/* Hero Section */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: radial-gradient(circle at center, #5D4037 0%, #4E342E 100%);
    overflow: hidden;
}

.hero-content {
    z-index: 10;
    text-align: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--lab-gray);
    margin-bottom: 2rem;
}

/* Indicators */
.indicator-badge {
    background: rgba(176, 190, 197, 0.1);
    border: 1px solid var(--lab-gray);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    margin: 0.5rem;
    display: inline-block;
}

.indicator-value {
    color: var(--pulse-orange);
    font-weight: bold;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    border-left: 5px solid var(--pulse-orange);
    padding-left: 1.5rem;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(176, 190, 197, 0.2);
    color: var(--off-white);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--pulse-orange);
}

.footer {
    background: var(--matte-black);
    padding: 40px 0;
    border-top: 1px solid var(--lab-gray);
    font-size: 0.8rem;
    color: var(--lab-gray);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--cedar-brown);
}
::-webkit-scrollbar-thumb {
    background: var(--lab-gray);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--pulse-orange);
}