:root {
    --bg-color: #050505;
    --surface-color: rgba(20, 20, 20, 0.75);
    --neon-green: #39FF14;
    --neon-glow: rgba(57, 255, 20, 0.25);
    --text-main: #ffffff;
    --text-dim: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.08);
    --transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --notice-height: 36px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    overflow-x: hidden;
    line-height: 1.6;
    padding-top: var(--notice-height);
}

/* Vibe Coding Notice Bar - 修改為固定定位 */
.notice-bar {
    width: 100%;
    height: var(--notice-height);
    background: rgba(57, 255, 20, 0.1);
    border-bottom: 1px solid rgba(57, 255, 20, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 2000;
    backdrop-filter: blur(15px);
}

.notice-content {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--neon-green);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background-color: var(--neon-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--neon-green);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.5; }
    100% { transform: scale(1); opacity: 1; }
}

/* 專業網格與背景光 */
.bg-canvas {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.03) 1px, transparent 0);
    background-size: 40px 40px;
}

.cursor-glow {
    position: fixed;
    width: 500px; height: 500px;
    background: radial-gradient(circle, var(--neon-glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
    filter: blur(80px);
    opacity: 0.4;
}

/* 導覽列 */
nav {
    padding: 1.2rem 8%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    top: var(--notice-height);
    z-index: 1000;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: top 0.3s ease;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'JetBrains Mono', monospace;
}

.logo span { color: var(--neon-green); }

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--neon-green);
    color: #000 !important;
    padding: 0.6rem 1.4rem;
    border-radius: 6px;
    font-weight: 800 !important;
    box-shadow: 0 4px 15px var(--neon-glow);
}

/* Hero Section */
.hero {
    height: calc(100vh - var(--notice-height));
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 10%;
    position: relative;
}

.hero-tag {
    color: var(--neon-green);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 1.5rem;
    display: block;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 2rem;
    letter-spacing: -2px;
}

.typewriter {
    color: var(--neon-green);
    border-right: 3px solid var(--neon-green);
    padding-right: 8px;
    animation: blink 0.8s infinite;
}

@keyframes blink { 
    from, to { border-color: transparent } 
    50% { border-color: var(--neon-green); } 
}

/* 其他樣式（服務卡片、故事區塊、AI 實驗室、CTA 等） */
.section-padding { padding: 120px 10%; }
.section-header { margin-bottom: 4.5rem; max-width: 700px; }
.section-header h2 { font-size: 2.8rem; font-weight: 800; margin-bottom: 1.5rem; }

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--surface-color);
    padding: 4rem 2.5rem;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--neon-green);
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

.service-card i {
    color: var(--neon-green);
    margin-bottom: 2.5rem;
    display: inline-flex;
    background: rgba(57, 255, 20, 0.05);
    padding: 1rem;
    border-radius: 12px;
}

.service-card h3 {
    font-size: 1.6rem;
    margin-bottom: 1.2rem;
    font-weight: 700;
}

.service-card p {
    color: var(--text-dim);
    font-size: 1rem;
    line-height: 1.7;
}

.story-section {
    background: linear-gradient(to bottom, #050505, #0f170f);
    padding: 120px 10%;
}

.story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

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

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--neon-green);
    font-family: 'JetBrains Mono', monospace;
    display: block;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.5rem;
}

.ai-lab {
    padding: 100px 10%;
    background: radial-gradient(circle at 10% 50%, rgba(57, 255, 20, 0.05) 0%, transparent 50%);
}

.ai-card-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.ai-placeholder {
    border: 2px dashed rgba(57, 255, 20, 0.2);
    padding: 5rem;
    border-radius: 24px;
    text-align: center;
    background: rgba(57, 255, 20, 0.01);
    transition: var(--transition);
}

.ai-placeholder:hover {
    background: rgba(57, 255, 20, 0.03);
    border-color: var(--neon-green);
}

.ai-placeholder i {
    font-size: 3rem;
    color: rgba(57, 255, 20, 0.3);
    margin-bottom: 1rem;
}

.cta {
    padding: 150px 10%;
    text-align: center;
}

.btn-action {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 1.2rem 3.5rem;
    background: transparent;
    border: 1px solid var(--neon-green);
    color: var(--neon-green);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    transition: var(--transition);
    margin-top: 2.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-action:hover {
    background: var(--neon-green);
    color: #000;
    box-shadow: 0 0 40px var(--neon-glow);
}

@media (max-width: 992px) {
    .story-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 3rem; }
    .section-header h2 { font-size: 2.2rem; }
    nav { top: var(--notice-height); }
}