/* ========================================
   AIQC 人工智能室内质控平台 - 样式表
   ======================================== */

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

:root {
    --primary: #0066ff;
    --primary-light: #00d4ff;
    --primary-dark: #0044cc;
    --accent: #00ff88;
    --accent-orange: #ff8c00;
    --accent-red: #ff6b6b;
    --bg-dark: #0a0e1a;
    --bg-darker: #060914;
    --bg-card: rgba(255,255,255,0.03);
    --bg-card-hover: rgba(255,255,255,0.06);
    --text-primary: #ffffff;
    --text-secondary: rgba(255,255,255,0.7);
    --text-muted: rgba(255,255,255,0.5);
    --border: rgba(255,255,255,0.08);
    --border-light: rgba(255,255,255,0.15);
    --gradient-primary: linear-gradient(135deg, #0066ff 0%, #00d4ff 100%);
    --gradient-accent: linear-gradient(135deg, #00ff88 0%, #00d4ff 100%);
    --gradient-hero: linear-gradient(180deg, #0a0e1a 0%, #0d1230 50%, #0a0e1a 100%);
    --shadow-glow: 0 0 40px rgba(0,102,255,0.3);
    --shadow-card: 0 8px 32px rgba(0,0,0,0.3);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img, svg {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Text Utilities ---------- */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---------- Navigation ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.95);
    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-text {
    font-size: 24px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: var(--transition);
    font-weight: 400;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(0,102,255,0.1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-contact {
    padding: 10px 24px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-contact:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ---------- Hero Section ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    overflow: hidden;
    padding-top: 72px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0,102,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,102,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 20%, transparent 80%);
}

.particle-network {
    position: absolute;
    inset: 0;
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(0,102,255,0.1);
    border: 1px solid rgba(0,102,255,0.3);
    border-radius: 100px;
    font-size: 13px;
    color: var(--primary-light);
    margin-bottom: 24px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-bottom: 40px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 42px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-symbol {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-light);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 36px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0,102,255,0.4);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 36px;
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
}

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

/* Hero Visual - Dashboard Mockup */
.hero-visual {
    position: relative;
}

.dashboard-mockup {
    background: rgba(13, 18, 48, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 24px 64px rgba(0,0,0,0.4), 0 0 80px rgba(0,102,255,0.1);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: var(--transition);
}

.dashboard-mockup:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(0,0,0,0.3);
    border-bottom: 1px solid var(--border);
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.mockup-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
}

.mockup-dots span:first-child { background: #ff6b6b; }
.mockup-dots span:nth-child(2) { background: #ffd93d; }
.mockup-dots span:nth-child(3) { background: #6bcb77; }

.mockup-title {
    font-size: 13px;
    color: var(--text-muted);
    margin-left: auto;
}

.mockup-body {
    padding: 24px;
}

.mockup-chart {
    position: relative;
    height: 180px;
    background: rgba(0,0,0,0.2);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.chart-line {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0.6;
}

.chart-line::before {
    content: '';
    position: absolute;
    inset: -40px 0;
    background: linear-gradient(180deg, transparent, rgba(0,102,255,0.1));
    border-radius: 4px;
}

.chart-points {
    position: absolute;
    inset: 20px;
}

.chart-points span {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(0,255,136,0.5);
    animation: float 3s ease-in-out infinite;
}

.chart-points span:nth-child(1) { animation-delay: 0s; }
.chart-points span:nth-child(2) { animation-delay: 0.5s; }
.chart-points span:nth-child(3) { animation-delay: 1s; }
.chart-points span:nth-child(4) { animation-delay: 1.5s; }
.chart-points span:nth-child(5) { animation-delay: 2s; }
.chart-points span:nth-child(6) { animation-delay: 2.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.chart-labels {
    display: flex;
    justify-content: space-around;
    margin-top: 8px;
    font-size: 11px;
    color: var(--text-muted);
}

.mockup-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.mini-card {
    padding: 16px 12px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--border);
}

.card-green { background: rgba(0,255,136,0.08); border-color: rgba(0,255,136,0.2); }
.card-blue { background: rgba(0,102,255,0.08); border-color: rgba(0,102,255,0.2); }
.card-orange { background: rgba(255,140,0,0.08); border-color: rgba(255,140,0,0.2); }

.card-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.card-value {
    display: block;
    font-size: 22px;
    font-weight: 700;
}

.card-green .card-value { color: var(--accent); }
.card-blue .card-value { color: var(--primary-light); }
.card-orange .card-value { color: var(--accent-orange); }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 1;
    opacity: 0.6;
}

.mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 2px;
    animation: scrollWheel 2s infinite;
}

@keyframes scrollWheel {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

.scroll-indicator span {
    font-size: 12px;
    color: var(--text-muted);
}

/* ---------- Section Common ---------- */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0,102,255,0.1);
    border: 1px solid rgba(0,102,255,0.3);
    border-radius: 100px;
    font-size: 13px;
    color: var(--primary-light);
    margin-bottom: 16px;
    font-weight: 500;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-header p {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
}

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

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.product-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

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

.product-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(0,102,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.product-card ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.product-card ul li {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
    line-height: 1.5;
}

.product-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ---------- Technology Section ---------- */
.tech-section {
    background: var(--bg-darker);
}

.tech-architecture {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tech-layer {
    width: 100%;
    display: flex;
    gap: 32px;
    align-items: flex-start;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.tech-layer:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-card);
}

.layer-visual {
    flex-shrink: 0;
}

.layer-icon {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border);
}

.layer-content h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.layer-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.layer-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.layer-tags span {
    padding: 6px 14px;
    background: rgba(0,102,255,0.1);
    border: 1px solid rgba(0,102,255,0.2);
    border-radius: 6px;
    font-size: 12px;
    color: var(--primary-light);
}

.tech-connector {
    width: 2px;
    height: 40px;
    background: linear-gradient(180deg, var(--primary), transparent);
    margin: 8px 0;
    position: relative;
}

.tech-connector::after {
    content: '↓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--primary);
    font-size: 14px;
}

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

.scenarios-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.tab-btn:hover {
    background: rgba(0,102,255,0.1);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.tab-content {
    position: relative;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.pane-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.pane-text h3 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 16px;
}

.pane-text > p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.feature-list li {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 24px;
    position: relative;
    line-height: 1.6;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

.feature-list strong {
    color: var(--text-primary);
}

.pane-visual {
    display: flex;
    justify-content: center;
}

.scenario-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    width: 100%;
}

.sc-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    transition: var(--transition);
}

.sc-card:hover {
    border-color: var(--primary);
    background: rgba(0,102,255,0.05);
}

.sc-number {
    display: block;
    font-size: 32px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.sc-label {
    font-size: 13px;
    color: var(--text-muted);
}

/* ---------- Cases Section ---------- */
.cases-section {
    background: var(--bg-dark);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
    border-color: var(--border-light);
}

.case-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.case-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: white;
}

.case-tag {
    padding: 4px 12px;
    background: rgba(0,102,255,0.1);
    border-radius: 6px;
    font-size: 12px;
    color: var(--primary-light);
}

.case-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.case-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.case-metrics {
    display: flex;
    gap: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.case-metrics div {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-size: 22px;
    font-weight: 900;
    color: var(--accent);
}

.metric-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ---------- Compliance Section ---------- */
.compliance-section {
    background: var(--bg-darker);
}

.compliance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.compliance-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    text-align: center;
    transition: var(--transition);
}

.compliance-card:hover {
    border-color: var(--primary);
    background: rgba(0,102,255,0.05);
}

.comp-logo {
    font-size: 28px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.compliance-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
}

.compliance-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

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

.dashboard-preview {
    max-width: 1000px;
    margin: 0 auto;
    background: rgba(13, 18, 48, 0.6);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    min-height: 500px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.3);
}

.dash-sidebar {
    width: 220px;
    background: rgba(0,0,0,0.3);
    border-right: 1px solid var(--border);
    padding: 24px 0;
    flex-shrink: 0;
}

.dash-logo {
    font-size: 22px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: 32px;
}

.dash-nav {
    display: flex;
    flex-direction: column;
}

.dash-nav-item {
    padding: 12px 24px;
    font-size: 14px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.dash-nav-item:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.03);
}

.dash-nav-item.active {
    color: var(--primary-light);
    background: rgba(0,102,255,0.1);
    border-left-color: var(--primary);
}

.dash-main {
    flex: 1;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.dash-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.dash-topbar > span {
    font-size: 16px;
    font-weight: 600;
}

.dash-user {
    padding: 6px 16px;
    background: rgba(0,102,255,0.1);
    border-radius: 6px;
    font-size: 13px;
    color: var(--primary-light);
}

.dash-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.dash-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

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

.dash-card-value {
    font-size: 28px;
    font-weight: 900;
    color: var(--text-primary);
}

.dash-card-value.warning { color: var(--accent-orange); }
.dash-card-value.danger { color: var(--accent-red); }

.dash-card-trend {
    font-size: 12px;
    color: var(--accent);
}

.dash-card-trend.up { color: var(--accent); }
.dash-card-trend.down { color: var(--accent-red); }

.dash-chart-area {
    flex: 1;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.dash-chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 600;
}

.dash-chart-legend {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
}

.dash-chart-legend i {
    display: inline-block;
    width: 12px;
    height: 3px;
    margin-right: 4px;
    vertical-align: middle;
    border-radius: 2px;
}

.dash-chart svg {
    width: 100%;
    height: 200px;
}

/* ---------- About Section ---------- */
.about-section {
    background: var(--bg-dark);
}

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

.about-content h2 {
    font-size: 40px;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.2;
}

.about-lead {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.value-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.value-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0,102,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.value-item h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

.value-item p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-stats-ring {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.ring-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.ring-item:hover {
    border-color: var(--primary);
    transform: scale(1.05);
}

.ring-number {
    font-size: 36px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.ring-label {
    font-size: 14px;
    color: var(--text-muted);
}

/* ---------- 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-info h2 {
    font-size: 36px;
    font-weight: 900;
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-method {
    display: flex;
    gap: 16px;
    align-items: center;
}

.cm-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0,102,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

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

.cm-value {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(0,102,255,0.05);
}

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

.btn-submit {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 16px;
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
}

.footer-social a:hover {
    background: rgba(0,102,255,0.2);
}

.footer-links h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-links a {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    padding: 6px 0;
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: 24px;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .hero-title { font-size: 44px; }
    .hero-stats { gap: 32px; }
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .compliance-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
    .about-stats-ring { gap: 20px; }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .nav-toggle { display: flex; }
    .hero-container { grid-template-columns: 1fr; gap: 40px; padding: 40px 20px; }
    .hero-title { font-size: 36px; }
    .hero-stats { flex-wrap: wrap; gap: 24px; }
    .stat-number { font-size: 32px; }
    .product-grid { grid-template-columns: 1fr; }
    .pane-grid { grid-template-columns: 1fr; gap: 32px; }
    .cases-grid { grid-template-columns: 1fr; }
    .compliance-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .dashboard-preview { flex-direction: column; }
    .dash-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
    .dash-cards { grid-template-columns: repeat(2, 1fr); }
    .section { padding: 60px 0; }
    .section-header h2 { font-size: 28px; }
    .tab-buttons { gap: 6px; }
    .tab-btn { padding: 10px 16px; font-size: 13px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 30px; }
    .hero-subtitle { font-size: 15px; }
    .hero-buttons { flex-direction: column; width: 100%; }
    .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
    .scenario-cards { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .about-stats-ring { grid-template-columns: 1fr; }
    .case-metrics { flex-wrap: wrap; gap: 16px; }
}

/* ---------- Animations ---------- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

[data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos-delay="200"] { transition-delay: 0.2s; }

/* Smooth scroll for all */
html { scroll-behavior: smooth; }