:root {
    --primary: #00d2ff;
    --primary-dark: #0077ff;
    --bg-main: #060b14;
    --bg-card: rgba(10, 25, 50, 0.6);
    --text-main: #e0f0ff;
    --text-muted: #8ab4f8;
    --border: rgba(0, 210, 255, 0.3);
    --glow: 0 0 15px rgba(0, 210, 255, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", -apple-system, sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(0, 119, 255, 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(0, 210, 255, 0.1), transparent 25%);
    background-attachment: fixed;
}

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

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

/* Tech Panel / Glassmorphism */
.tech-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.tech-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0.5;
}

.tech-title {
    background: linear-gradient(90deg, #fff, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(6, 11, 20, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: bold;
    color: #fff;
    letter-spacing: 1px;
}

.logo-icon {
    width: 24px;
    height: 24px;
    background: var(--primary);
    border-radius: 4px;
    box-shadow: var(--glow);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    font-size: 15px;
    color: var(--text-muted);
    transition: all 0.3s;
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--primary);
    text-shadow: 0 0 8px rgba(0, 210, 255, 0.6);
}

/* Buttons */
.btn-glow {
    background: linear-gradient(90deg, var(--primary-dark), var(--primary));
    color: #fff;
    border: none;
    padding: 10px 24px;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: var(--glow);
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-glow:hover {
    box-shadow: 0 0 25px rgba(0, 210, 255, 0.8);
    transform: translateY(-2px);
}

.btn-outline-glow {
    background: rgba(0, 119, 255, 0.1);
    color: var(--primary);
    border: 1px solid var(--primary);
    padding: 10px 24px;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.2) inset;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-outline-glow:hover {
    background: rgba(0, 210, 255, 0.15);
    box-shadow: 0 0 15px rgba(0, 210, 255, 0.4) inset, 0 0 15px rgba(0, 210, 255, 0.4);
    transform: translateY(-2px);
}

.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-large { padding: 14px 36px; font-size: 16px; }

/* Hero Section */
.hero {
    position: relative;
    padding: 120px 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
    background: url('1.webp') center/cover no-repeat;
}

.page-hero {
    min-height: auto;
    padding: 80px 0;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(6, 11, 20, 0.9) 0%, rgba(6, 11, 20, 0.7) 50%, rgba(6, 11, 20, 0.9) 100%);
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.tech-badge {
    display: inline-block;
    color: var(--primary);
    border: 1px solid var(--border);
    padding: 4px 12px;
    border-radius: 2px;
    font-size: 12px;
    letter-spacing: 2px;
    margin-bottom: 20px;
    background: rgba(0, 210, 255, 0.05);
}

.hero-content h1 {
    font-size: 52px;
    line-height: 1.2;
    margin-bottom: 24px;
    color: #fff;
    text-shadow: 0 0 20px rgba(0, 210, 255, 0.3);
}

.hero-content p {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.hero-visual {
    flex: 1;
}

.hero-visual img {
    width: 100%;
    border-radius: 8px;
    display: block;
}

/* Data Section */
.data-section {
    padding: 60px 0;
    position: relative;
    z-index: 2;
    margin-top: -60px;
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.data-card {
    padding: 30px 20px;
    text-align: center;
}

.data-value {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 8px;
    text-shadow: 0 0 10px rgba(0, 210, 255, 0.4);
}

.data-label {
    color: var(--text-muted);
    font-size: 14px;
    letter-spacing: 1px;
}

/* Features */
.features-section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 16px;
}

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

.feature-item {
    padding: 40px 30px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 210, 255, 0.15);
    border-color: rgba(0, 210, 255, 0.6);
}

.f-icon {
    font-size: 40px;
    margin-bottom: 20px;
    text-shadow: var(--glow);
}

.feature-item h4 {
    font-size: 20px;
    margin-bottom: 12px;
    color: #fff;
}

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

/* Solutions */
.solutions-section {
    padding: 80px 0;
}

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

.solution-card {
    padding: 0;
}

.s-img-wrapper {
    position: relative;
    height: 200px;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.s-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
}

.scan-line {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--primary);
    box-shadow: var(--glow);
    animation: scan 3s infinite linear;
}

@keyframes scan {
    0% { top: 0; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

.s-content {
    padding: 24px;
}

.s-content h4 {
    font-size: 20px;
    margin-bottom: 12px;
    color: #fff;
}

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

/* Download Page */
.download-section {
    padding: 80px 0;
}

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

.download-card {
    padding: 50px 30px;
    text-align: center;
}

.d-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.download-card h3 {
    font-size: 24px;
    margin-bottom: 12px;
    color: #fff;
}

.download-card p {
    color: var(--text-muted);
    margin-bottom: 30px;
    min-height: 42px;
}

/* Help Page */
.help-section {
    padding: 80px 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    padding: 30px;
    margin-bottom: 24px;
}

.faq-item h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--primary);
}

.faq-item p {
    color: var(--text-muted);
}

/* CTA */
.cta-section {
    padding: 100px 0;
}

.cta-inner {
    padding: 60px;
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 119, 255, 0.1), rgba(0, 210, 255, 0.05));
}

.cta-inner h2 {
    font-size: 36px;
    margin-bottom: 16px;
    color: #fff;
}

.cta-inner p {
    color: var(--text-muted);
    margin-bottom: 40px;
    font-size: 18px;
}

.cta-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 60px 0 24px;
    background: #03060a;
}

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

.footer-logo {
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 16px;
}

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

.footer-col h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: #fff;
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
}

@media (max-width: 992px) {
    .hero-inner {
        flex-direction: column;
        text-align: center;
    }
    .hero-btns, .cta-btns {
        justify-content: center;
    }
    .nav-menu {
        display: none;
    }
    .data-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid, .solutions-grid, .download-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
}