:root {
    /* Cyberpunk Palette */
    --bg-dark: #0A0E17;       /* Deep Space Black */
    --bg-secondary: #1E2532;  /* Gradient Gray */
    --neon-blue: #00F0FF;     /* Neon Blue */
    --neon-purple: #9D00FF;   /* Fluorescent Purple */
    --tech-green: #00FF9C;    /* Tech Green */
    --warning-orange: #FF7A00;/* Warning Orange */
    --text-white: #F0F8FF;    /* Highlight White */
    --text-gray: #A0AEC0;     /* Muted Text */
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    --gradient-glass: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01));
    
    /* Shadows */
    --shadow-neon-blue: 0 0 10px rgba(0, 240, 255, 0.5), 0 0 20px rgba(0, 240, 255, 0.3);
    --shadow-neon-purple: 0 0 10px rgba(157, 0, 255, 0.5), 0 0 20px rgba(157, 0, 255, 0.3);
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-white);
    overflow-x: hidden;
    position: relative;
}

/* Typography */
h1, h2, h3, h4, h5, h6, .display-4 {
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.text-primary { color: var(--neon-blue) !important; }
.text-secondary { color: var(--neon-purple) !important; }
.text-success { color: var(--tech-green) !important; }
.text-warning { color: var(--warning-orange) !important; }
.text-muted { color: var(--text-gray) !important; }
.text-white-50 { color: rgba(240, 248, 255, 0.5) !important; }

/* Backgrounds */
.bg-light { background-color: transparent !important; } /* Override bootstrap light bg */
.bg-dark { background-color: var(--bg-secondary) !important; }
.bg-white { background-color: rgba(255, 255, 255, 0.05) !important; }

/* Glassmorphism Utility */
.glass-panel {
    background: rgba(14, 20, 33, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 240, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.glass-card {
    background: var(--gradient-glass);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 12px;
    padding: 1px;
    background: linear-gradient(45deg, transparent, rgba(0, 240, 255, 0.3), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.glass-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-neon-blue);
    border-color: var(--neon-blue);
}

/* Neon Borders */
.border-neon-blue { border: 1px solid var(--neon-blue) !important; box-shadow: 0 0 5px var(--neon-blue); }
.border-neon-purple { border: 1px solid var(--neon-purple) !important; box-shadow: 0 0 5px var(--neon-purple); }

/* Navbar */
#mainNav {
    background: rgba(10, 14, 23, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    padding-top: 1rem;
    padding-bottom: 1rem;
}

#mainNav .navbar-brand {
    color: var(--neon-blue);
    font-weight: 900;
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

#mainNav .nav-link {
    color: var(--text-gray);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
}

#mainNav .nav-link:hover, #mainNav .nav-link.active {
    color: var(--neon-blue);
    text-shadow: 0 0 5px var(--neon-blue);
}

#mainNav .btn-primary {
    background: transparent;
    border: 1px solid var(--neon-blue);
    color: var(--neon-blue);
    box-shadow: 0 0 5px var(--neon-blue);
}

#mainNav .btn-primary:hover {
    background: var(--neon-blue);
    color: var(--bg-dark);
    box-shadow: 0 0 15px var(--neon-blue);
}

/* Hero Section */
header.masthead {
    position: relative;
    padding-top: 10rem;
    padding-bottom: 6rem;
    background: radial-gradient(circle at center, rgba(30, 37, 50, 0.4) 0%, var(--bg-dark) 80%);
    overflow: hidden;
    z-index: 1;
}

/* Particle Background Container */
#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}

/* Buttons */
.btn-xl {
    font-family: 'Orbitron', sans-serif;
    border-radius: 4px; /* Tech style: less rounded */
    padding: 1rem 2.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: all 0.3s ease;
}

.btn-primary {
    background: transparent;
    border: 1px solid var(--neon-blue);
    color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.2), transparent);
    transition: left 0.5s;
    z-index: -1;
}

.btn-primary:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
    color: #fff;
    border-color: var(--neon-blue);
    transform: translateY(-2px);
}

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

.btn-outline-light {
    border-color: var(--neon-purple);
    color: var(--neon-purple);
    box-shadow: 0 0 10px rgba(157, 0, 255, 0.2);
}

.btn-outline-light:hover {
    background: rgba(157, 0, 255, 0.1);
    box-shadow: 0 0 20px rgba(157, 0, 255, 0.6);
    color: #fff;
    border-color: var(--neon-purple);
}

/* Section Dividers */
hr.divider {
    background-color: var(--neon-blue);
    box-shadow: 0 0 5px var(--neon-blue);
    height: 2px;
    opacity: 1;
}

/* Core Business Cards */
.business-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    color: var(--text-white);
}

.business-card:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-10px) scale(1.02);
}

/* Specific Platform Styles */
.douyin-card:hover { border-color: var(--text-white); box-shadow: 0 0 15px rgba(255, 255, 255, 0.5); }
.xhs-card:hover { border-color: #ff2442; box-shadow: 0 0 15px rgba(255, 36, 66, 0.5); }
.weibo-card:hover { border-color: var(--warning-orange); box-shadow: 0 0 15px rgba(255, 122, 0, 0.5); }
.gzh-card:hover { border-color: var(--tech-green); box-shadow: 0 0 15px rgba(0, 255, 156, 0.5); }

/* Service Advantages - Dashboard Style */
.advantage-card {
    background: radial-gradient(circle at top left, rgba(30, 37, 50, 0.6), rgba(10, 14, 23, 0.9));
    border: 1px solid rgba(0, 240, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.advantage-card::after {
    content: '';
    position: absolute;
    bottom: 0; right: 0;
    width: 50px; height: 50px;
    background: linear-gradient(135deg, transparent 50%, rgba(0, 240, 255, 0.1) 50%);
    pointer-events: none;
}

.advantage-card h4 {
    color: var(--neon-blue);
}

/* Success Cases - Holographic Tabs */
.nav-pills .nav-link {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-gray);
    border-radius: 0;
    clip-path: polygon(10% 0, 100% 0, 100% 90%, 90% 100%, 0 100%, 0 10%); /* Tech shape */
    margin: 0 5px;
    transition: all 0.3s;
}

.nav-pills .nav-link.active {
    background: rgba(0, 240, 255, 0.1);
    border-color: var(--neon-blue);
    color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2) inset;
}

/* Case Cards */
.case-card {
    background: rgba(14, 20, 33, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.case-card::before {
    content: '';
    position: absolute;
    top: -1px; left: -1px;
    width: 20px; height: 20px;
    border-top: 2px solid var(--neon-blue);
    border-left: 2px solid var(--neon-blue);
}

.case-card::after {
    content: '';
    position: absolute;
    bottom: -1px; right: -1px;
    width: 20px; height: 20px;
    border-bottom: 2px solid var(--neon-blue);
    border-right: 2px solid var(--neon-blue);
}

/* Progress Bars */
.progress {
    background-color: rgba(255, 255, 255, 0.1);
    height: 6px;
    border-radius: 0;
}

.progress-bar {
    background-color: var(--neon-blue);
    box-shadow: 0 0 8px var(--neon-blue);
}

/* Process Timeline */
.process-step .step-icon-wrapper {
    background: rgba(10, 14, 23, 0.8) !important;
    border-color: var(--neon-purple) !important;
    color: var(--neon-purple) !important;
    box-shadow: 0 0 10px rgba(157, 0, 255, 0.3);
}

.process-step:hover .step-icon-wrapper {
    background: var(--neon-purple) !important;
    color: #fff !important;
    box-shadow: 0 0 20px rgba(157, 0, 255, 0.8);
}

.timeline-line {
    background-color: var(--neon-purple);
    box-shadow: 0 0 5px var(--neon-purple);
}

/* FAQ - Terminal Style */
.accordion-item {
    background: rgba(14, 20, 33, 0.9);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 4px !important;
    margin-bottom: 1rem;
}

.accordion-button {
    background: transparent;
    color: var(--neon-blue) !important;
    font-family: 'Consolas', 'Monaco', monospace; /* Terminal font */
    box-shadow: none !important;
}

.accordion-button::before {
    content: '> ';
    margin-right: 10px;
    color: var(--neon-purple);
}

.accordion-button:not(.collapsed) {
    background: rgba(0, 240, 255, 0.05);
    color: var(--text-white) !important;
}

.accordion-body {
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-gray);
    font-family: 'Consolas', monospace;
    border-top: 1px dashed rgba(0, 240, 255, 0.2);
}

/* Contact Form - Holographic Panel */
.card-header.bg-primary {
    background: linear-gradient(90deg, rgba(0, 240, 255, 0.2), rgba(157, 0, 255, 0.2)) !important;
    border-bottom: 1px solid rgba(0, 240, 255, 0.3);
}

.form-control, .form-select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-white);
    border-radius: 4px;
}

.form-control:focus, .form-select:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
    color: var(--text-white);
}

/* Holographic Data Table */
.tech-table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-white);
    --bs-table-hover-color: var(--text-white);
    --bs-table-border-color: rgba(0, 240, 255, 0.2);
    --bs-table-hover-bg: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.3);
    background: rgba(14, 20, 33, 0.6);
    backdrop-filter: blur(10px);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
}

.tech-table thead {
    background: rgba(0, 240, 255, 0.1);
    color: var(--neon-blue);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--neon-blue);
}

.tech-table tbody tr {
    transition: all 0.3s ease;
}

.tech-table tbody tr:hover {
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2) inset;
    transform: scale(1.01); /* Subtle pop */
}

.tech-table td {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Icon glowing */
.tech-table .fab, .tech-table .fas {
    filter: drop-shadow(0 0 2px currentColor);
    font-size: 1.2rem;
}

/* Footer */
footer {
    background: #05070a !important;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Animations */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

@keyframes pulse-neon {
    0% { box-shadow: 0 0 5px var(--neon-blue); }
    50% { box-shadow: 0 0 20px var(--neon-blue), 0 0 10px var(--neon-purple); }
    100% { box-shadow: 0 0 5px var(--neon-blue); }
}

.animate-float {
    animation: float 4s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse-neon 2s infinite;
}

/* Hide scrollbar but keep functionality */
.table-responsive {
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
}

.table-responsive::-webkit-scrollbar {
    display: none;
}