/* ========================================
   GEP Website - 科技感CSS样式
   ======================================== */

/* CSS Variables */
:root {
    --primary: #00ffff;
    --primary-dark: #00cccc;
    --secondary: #00ff88;
    --accent: #ff00ff;
    --gold: #ffd700;
    --bg-dark: #0a0a1a;
    --bg-darker: #050510;
    --bg-card: rgba(10, 10, 30, 0.8);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --border-glow: rgba(0, 255, 255, 0.3);
    --gradient-primary: linear-gradient(135deg, #00ffff, #00ff88);
    --gradient-gold: linear-gradient(135deg, #ffd700, #ffaa00);
    --shadow-glow: 0 0 30px rgba(0, 255, 255, 0.3);
    --font-tech: 'Orbitron', sans-serif;
    --font-main: 'Noto Sans SC', sans-serif;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* ========================================
   Loader
   ======================================== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-darker);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-ring {
    width: 80px;
    height: 80px;
    border: 3px solid transparent;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
    position: relative;
}

.loader-ring::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border: 3px solid transparent;
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite reverse;
}

.loader-text {
    font-family: var(--font-tech);
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    text-shadow: 0 0 20px var(--primary);
    letter-spacing: 8px;
}

.loader-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 10px;
    letter-spacing: 4px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 15px 0;
    z-index: 1000;
    transition: all 0.3s ease;
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glow);
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex-shrink: 0;
}

.logo-text {
    font-family: var(--font-tech);
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    text-shadow: 0 0 20px var(--primary);
    letter-spacing: 4px;
}

.logo-subtitle {
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-size: 14px;
    color: var(--text-secondary);
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-lang {
    display: flex;
    gap: 10px;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--border-glow);
    color: var(--text-muted);
    padding: 5px 12px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s ease;
    transition: all 0.3s ease;
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, var(--bg-dark) 70%);
    z-index: 2;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
    padding: 0 30px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--border-glow);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 30px;
    animation: fadeInUp 1s ease;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-family: var(--font-tech);
    font-size: 64px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease 0.2s both;
}

.title-line {
    display: block;
}

.title-line.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-family: var(--font-tech);
    font-size: 18px;
    color: var(--text-secondary);
    letter-spacing: 4px;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease 0.8s both;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    text-align: center;
    animation: fadeIn 1s ease 1.2s both;
}

.hero-scroll span {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--border-glow);
    border-radius: 12px;
    margin: 0 auto;
    position: relative;
}

.scroll-dot {
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0%, 100% { top: 8px; opacity: 1; }
    50% { top: 20px; opacity: 0.3; }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-dark);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-glow);
}

.btn-secondary:hover {
    background: rgba(0, 255, 255, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

.btn-arrow {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.btn-play {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ========================================
   Section Common
   ======================================== */
section {
    position: relative;
    padding: 120px 0;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-tech);
    font-size: 12px;
    color: var(--primary);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.section-title {
    font-family: var(--font-tech);
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

/* ========================================
   Data Section
   ======================================== */
.data-section {
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    position: relative;
    overflow: hidden;
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.data-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.data-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.data-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.data-card:hover::before {
    transform: scaleX(1);
}

.data-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.data-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--primary);
}

.data-number {
    font-family: var(--font-tech);
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    text-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
    line-height: 1;
}

.data-unit {
    font-family: var(--font-tech);
    font-size: 18px;
    color: var(--secondary);
    margin-top: 5px;
}

.data-label {
    font-size: 18px;
    font-weight: 600;
    margin-top: 15px;
}

.data-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 5px;
}

.data-bg-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* ========================================
   Business Section
   ======================================== */
.business-section {
    background: var(--bg-dark);
    background-image:
        linear-gradient(rgba(0, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.business-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 40px 30px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.business-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.business-card:hover .card-glow {
    opacity: 1;
}

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.2), rgba(0, 255, 136, 0.2));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.card-icon svg {
    width: 35px;
    height: 35px;
    fill: var(--primary);
}

.card-title {
    font-family: var(--font-tech);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 5px;
}

.card-subtitle {
    font-size: 12px;
    color: var(--primary);
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.card-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.card-stats {
    display: flex;
    gap: 20px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-tech);
    font-size: 20px;
    font-weight: 700;
    color: var(--secondary);
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
}

/* ========================================
   Process Section
   ======================================== */
.process-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    position: relative;
    overflow: hidden;
}

.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    transform: translateX(-50%);
}

.process-step {
    display: flex;
    align-items: center;
    margin-bottom: 60px;
    position: relative;
}

.process-step:nth-child(even) {
    flex-direction: row-reverse;
}

.process-step:nth-child(even) .step-content {
    text-align: right;
    padding-right: 80px;
    padding-left: 0;
}

.step-number {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: var(--bg-dark);
    border: 3px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-tech);
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    z-index: 2;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.step-content {
    flex: 1;
    padding-left: 80px;
}

.step-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.step-icon svg {
    width: 25px;
    height: 25px;
    fill: var(--primary);
}

.step-content h4 {
    font-family: var(--font-tech);
    font-size: 22px;
    margin-bottom: 10px;
}

.step-content p {
    font-size: 14px;
    color: var(--text-secondary);
}

.process-3d {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.3;
}

/* ========================================
   Token Section
   ======================================== */
.token-section {
    background: var(--bg-dark);
    position: relative;
    overflow: hidden;
}

.token-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.token-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 30px;
}

.token-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.token-stat {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 12px;
    padding: 20px;
}

.token-stat .stat-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.token-stat .stat-value {
    display: block;
    font-family: var(--font-tech);
    font-size: 24px;
    font-weight: 700;
    color: var(--gold);
}

.token-buttons {
    display: flex;
    gap: 15px;
}

.token-visual {
    position: relative;
    height: 400px;
}

.coin-canvas {
    width: 100%;
    height: 100%;
}

.coin-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 3s infinite;
    pointer-events: none;
}

/* ========================================
   Certificates Section
   ======================================== */
.certificates-section {
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.4s ease;
}

.cert-card:hover {
    transform: translateY(-10px) rotateY(10deg);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.cert-icon {
    font-family: var(--font-tech);
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 15px;
    text-shadow: 0 0 20px var(--primary);
}

.cert-card h4 {
    font-size: 14px;
    margin-bottom: 5px;
}

.cert-card p {
    font-size: 11px;
    color: var(--text-muted);
}

/* ========================================
   Video Section
   ======================================== */
.video-section {
    background: var(--bg-dark);
}

.video-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.video-player-container {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid var(--border-glow);
    box-shadow: var(--shadow-glow);
    background: #000;
}

.video-player-container video {
    width: 100%;
    display: block;
    background: #000;
}

.video-quality-controls {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.video-quality-btn {
    padding: 10px 24px;
    border: 2px solid var(--border-glow);
    border-radius: 30px;
    background: rgba(0, 255, 255, 0.05);
    color: var(--primary);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.video-quality-btn:hover {
    background: rgba(0, 255, 255, 0.15);
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
}

.video-quality-btn.active {
    background: var(--gradient-primary);
    border-color: var(--primary);
    color: var(--bg-dark);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.video-status-bar {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 15px;
    padding: 12px 20px;
    background: rgba(0, 255, 255, 0.03);
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.1);
    flex-wrap: wrap;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
}

.status-label {
    color: var(--text-muted);
}

.status-value {
    color: var(--primary);
    font-weight: 600;
}

#video-quality,
#video-buffer {
    color: var(--primary);
    font-weight: 500;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.video-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.play-btn {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.5);
}

.play-btn svg {
    width: 30px;
    height: 30px;
    fill: var(--bg-dark);
    margin-left: 5px;
}

.video-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.quality-btn {
    padding: 8px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    color: var(--text-secondary);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 13px;
}

.quality-btn:hover,
.quality-btn.active {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

/* ========================================
   Contact Section
   ======================================== */
.contact-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--primary);
}

.contact-text h4 {
    font-size: 16px;
    margin-bottom: 5px;
}

.contact-text p {
    font-size: 14px;
    color: var(--text-secondary);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 40px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glow);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-main);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--bg-darker);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-glow);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo .logo-text {
    font-size: 36px;
}

.footer-logo p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 5px;
}

.footer-slogan {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 10px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-column a {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.footer-column a:hover {
    color: var(--primary);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 30px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-social {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary);
}

.social-link svg {
    width: 18px;
    height: 18px;
    fill: var(--text-secondary);
    transition: fill 0.3s ease;
}

.social-link:hover svg {
    fill: var(--bg-dark);
}

/* ========================================
   Back to Top
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.4);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    fill: var(--bg-dark);
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.7; }
}

/* Data AOS Custom */
[data-aos="fade-up"] {
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.6s ease;
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
    opacity: 1;
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
    opacity: 0;
    transition: all 0.6s ease;
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
    opacity: 1;
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
    opacity: 0;
    transition: all 0.6s ease;
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
    opacity: 1;
}

[data-aos="fade-left"] {
    transform: translateX(30px);
    opacity: 0;
    transition: all 0.6s ease;
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
    opacity: 1;
}

[data-aos="flip-left"] {
    transform: perspective(2500px) rotateY(-90deg);
    opacity: 0;
    transition: all 0.6s ease;
}

[data-aos="flip-left"].aos-animate {
    transform: perspective(2500px) rotateY(0);
    opacity: 1;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1200px) {
    .data-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .certificates-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .nav-container {
        position: relative;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid rgba(0, 255, 255, 0.2);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
        display: flex;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu .nav-link {
        padding: 10px 0;
        font-size: 16px;
    }

    .nav-lang {
        display: none;
        position: fixed;
        top: calc(80px + 100%);
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        padding: 15px 20px;
        justify-content: center;
        gap: 15px;
        border-bottom: 1px solid rgba(0, 255, 255, 0.2);
        z-index: 999;
    }

    .nav-menu.active ~ .nav-lang {
        display: flex;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        border-bottom: 1px solid rgba(0, 255, 255, 0.3);
        box-shadow: 0 2px 10px rgba(0, 255, 255, 0.1);
    }

    .nav-menu.active {
        top: 130px;
    }

    .nav-lang .lang-btn {
        padding: 8px 20px;
        font-size: 14px;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
        position: relative;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 42px;
    }

    .token-content {
        grid-template-columns: 1fr;
    }

    .token-visual {
        order: -1;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .data-grid {
        grid-template-columns: 1fr;
    }

    .business-grid {
        grid-template-columns: 1fr;
    }

    .certificates-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .timeline-line {
        left: 30px;
    }

    .step-number {
        left: 30px;
    }

    .process-step,
    .process-step:nth-child(even) {
        flex-direction: column;
    }

    .step-content,
    .process-step:nth-child(even) .step-content {
        text-align: left;
        padding-left: 80px;
        padding-right: 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 28px;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .token-stats {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   About Section
   ======================================== */
.about-section {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 60px;
}

.about-text h3 {
    font-family: var(--font-tech);
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 20px;
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.about-text p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 30px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.about-stat {
    text-align: center;
    padding: 20px;
    background: var(--bg-card);
    border-radius: 15px;
    border: 1px solid var(--border-glow);
    transition: all 0.3s ease;
}

.about-stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.about-stat .stat-icon {
    font-size: 30px;
    display: block;
    margin-bottom: 10px;
}

.about-stat .stat-number {
    font-family: var(--font-tech);
    font-size: 24px;
    color: var(--primary);
    display: block;
    font-weight: 700;
}

.about-stat .stat-text {
    font-size: 12px;
    color: var(--text-muted);
    display: block;
    margin-top: 5px;
}

.about-gallery {
    position: relative;
}

.gallery-main {
    width: 100%;
    aspect-ratio: 16/10;
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.gallery-main .gallery-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-main:hover .gallery-img {
    transform: scale(1.05);
}

.gallery-thumbs {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.gallery-thumbs .thumb {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 10px;
    cursor: pointer;
    opacity: 0.5;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.gallery-thumbs .thumb:hover,
.gallery-thumbs .thumb.active {
    opacity: 1;
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

/* Logo Image Styles */
.logo-img {
    height: 50px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
    filter: brightness(1.2);
}

.footer-logo-img {
    height: 60px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    margin-bottom: 15px;
    filter: brightness(1.2);
}

/* ========================================
   Equipment Section
   ======================================== */
.equipment-section {
    padding: 120px 0;
    background: var(--bg-dark);
    position: relative;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.equipment-card {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-glow);
    transition: all 0.4s ease;
}

.equipment-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.equipment-img-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.equipment-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.equipment-card:hover .equipment-img {
    transform: scale(1.1);
}

.equipment-overlay {
    position: absolute;
    top: 15px;
    right: 15px;
}

.equipment-tag {
    background: rgba(0, 255, 255, 0.2);
    color: var(--primary);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid var(--primary);
}

.equipment-info {
    padding: 20px;
}

.equipment-info h4 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.equipment-info p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ========================================
   Materials Section
   ======================================== */
.materials-section {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    position: relative;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 200px);
    gap: 20px;
    margin-top: 60px;
}

.material-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid var(--border-glow);
    cursor: pointer;
}

.material-card.large {
    grid-column: span 2;
    grid-row: span 2;
}

.material-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.material-card:hover .material-img {
    transform: scale(1.1);
}

.material-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.material-card:hover .material-overlay {
    transform: translateY(0);
}

.material-overlay span {
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
}

/* Responsive Adjustments for New Sections */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .equipment-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .materials-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
    }

    .material-card.large {
        grid-column: span 2;
        grid-row: span 1;
    }
}

@media (max-width: 768px) {
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }

    .about-stat {
        padding: 15px 10px;
    }

    .about-stat .stat-number {
        font-size: 18px;
    }

    .equipment-grid {
        grid-template-columns: 1fr;
    }

    .materials-grid {
        grid-template-columns: 1fr;
    }

    .material-card.large {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    .about-stats {
        grid-template-columns: 1fr;
    }

    .gallery-thumbs .thumb {
        width: 60px;
        height: 45px;
    }
}

/* ========================================
   Certificate Cards - Clickable Style
   ======================================== */
.cert-card {
    cursor: pointer;
    transition: all 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 255, 255, 0.3);
}

.cert-view-hint {
    display: block;
    margin-top: 15px;
    font-size: 11px;
    color: var(--primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cert-card:hover .cert-view-hint {
    opacity: 1;
}

/* ========================================
   Certificate Modal
   ======================================== */
.cert-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.cert-modal.active {
    opacity: 1;
    visibility: visible;
}

.cert-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.cert-modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    background: var(--bg-card);
    border-radius: 20px;
    border: 2px solid var(--primary);
    box-shadow: 0 0 50px rgba(0, 255, 255, 0.3);
    overflow: hidden;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.cert-modal.active .cert-modal-content {
    transform: scale(1);
}

.cert-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

.cert-modal-close:hover {
    background: var(--primary);
    transform: rotate(90deg);
}

.cert-modal-close svg {
    width: 20px;
    height: 20px;
    fill: white;
}

.cert-modal-header {
    padding: 25px 30px;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.1), rgba(0, 255, 136, 0.1));
    border-bottom: 1px solid var(--border-glow);
    text-align: center;
}

.cert-modal-header h3 {
    font-family: var(--font-tech);
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 5px;
}

.cert-modal-header p {
    font-size: 14px;
    color: var(--text-muted);
}

.cert-modal-body {
    padding: 20px;
    max-height: 70vh;
    overflow-y: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-modal-body img {
    max-width: 100%;
    max-height: 65vh;
    object-fit: contain;
    border-radius: 10px;
}

/* Responsive Modal */
@media (max-width: 768px) {
    .cert-modal-content {
        max-width: 95vw;
        max-height: 95vh;
    }

    .cert-modal-header {
        padding: 20px;
    }

    .cert-modal-header h3 {
        font-size: 18px;
    }

    .cert-modal-body {
        padding: 15px;
    }
}