/* 户户达科技 — 现代科技企业官网视觉系统 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

:root {
    --primary: #0066ff;
    --primary-dark: #0052cc;
    --primary-light: #3385ff;
    --accent: #00d4aa;
    --accent-secondary: #7c3aed;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --bg: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border: #e2e8f0;
    --glass: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(255, 255, 255, 0.35);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.12);
    --shadow-glow: 0 0 40px rgba(0, 102, 255, 0.15);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --header-height: 72px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --gradient-primary: linear-gradient(135deg, #0066ff 0%, #0052cc 50%, #0047b3 100%);
    --gradient-hero: linear-gradient(135deg, #0a1628 0%, #0f2744 40%, #1a3a5c 100%);
    --gradient-accent: linear-gradient(135deg, #0066ff, #00d4aa);
}

[data-theme="dark"] {
    --text: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --bg: #0b1120;
    --bg-secondary: #111827;
    --bg-tertiary: #1e293b;
    --border: #334155;
    --glass: rgba(15, 23, 42, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Inter', 'HarmonyOS Sans', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text);
    line-height: 1.7;
    background: var(--bg);
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
    color: #fff;
    box-shadow: var(--shadow-glow);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-brand {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}

.logo-tagline {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
}

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 0.15rem;
}

.main-nav a {
    padding: 0.5rem 0.85rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: color var(--transition), background var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
    background: rgba(0, 102, 255, 0.08);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: border-color var(--transition), background var(--transition);
}

.theme-toggle:hover { border-color: var(--primary); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(0, 102, 255, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 102, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1.5px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(8px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px);
}

.btn-sm { padding: 0.5rem 1rem; font-size: 0.825rem; }

.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-secondary);
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.mobile-menu-btn span {
    width: 18px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

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

.hero-canvas {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.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 at center, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    pointer-events: none;
}

.hero-glow-1 { top: -200px; right: -100px; background: #0066ff; }
.hero-glow-2 { bottom: -200px; left: -100px; background: #00d4aa; }

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
    padding: 4rem 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(12px);
}

.hero-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: 0.6; transform: scale(1.2); }
}

.hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
}

.hero h1 .gradient-text {
    background: linear-gradient(135deg, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 2rem;
    max-width: 580px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    backdrop-filter: blur(16px);
}

.hero-stat-item { text-align: center; }

.hero-stat-num {
    font-size: 1.75rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
}

.hero-stat-num span { color: var(--accent); }

.hero-stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 0.25rem;
}

/* ===== Sections ===== */
.section {
    padding: 6rem 0;
}

.section-alt { background: var(--bg-secondary); }

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 3.5rem;
}

.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--text);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== Cards ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 102, 255, 0.2);
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
    background: rgba(0, 102, 255, 0.08);
}

.card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.card p {
    font-size: 0.925rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    transition: gap var(--transition);
}

.card-link:hover { gap: 0.6rem; }

/* ===== Feature Grid ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem 1.5rem;
}

.feature-num {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.feature-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ===== Process Steps ===== */
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    position: relative;
}

.process-step {
    text-align: center;
    padding: 2rem 1.25rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
}

.process-step-num {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
}

.process-step h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.process-step p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== Logo Wall ===== */
.logo-wall {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5rem;
    align-items: center;
}

.logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 72px;
    padding: 1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.logo-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

/* ===== Testimonials ===== */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.testimonial-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
}

.testimonial-quote {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
}

.testimonial-name { font-weight: 600; font-size: 0.9rem; }
.testimonial-role { font-size: 0.8rem; color: var(--text-muted); }

/* ===== News ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.news-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 180px;
    background-size: cover;
    background-position: center;
}

.news-body { padding: 1.5rem; }

.news-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.news-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.news-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== CTA Banner ===== */
.cta-banner {
    background: var(--gradient-hero);
    border-radius: var(--radius-lg);
    padding: 4rem 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 102, 255, 0.3), transparent 60%);
}

.cta-banner h2 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 1rem;
    position: relative;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 2rem;
    position: relative;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.cta-banner .btn { position: relative; }

/* ===== Page Hero (inner pages) ===== */
.page-hero {
    padding: calc(var(--header-height) + 4rem) 0 4rem;
    background: var(--gradient-hero);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to top, var(--bg), transparent);
}

.page-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.page-hero p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.breadcrumb a { color: rgba(255, 255, 255, 0.7); }
.breadcrumb a:hover { color: #fff; }

/* ===== About Page ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img { width: 100%; height: 400px; object-fit: cover; }

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.value-card {
    text-align: center;
    padding: 2rem 1.25rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.value-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.value-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.value-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-bottom: 2.5rem;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0.35rem;
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    border: 3px solid var(--bg);
    box-shadow: 0 0 0 2px var(--primary);
    transform: translateX(-5px);
}

.timeline-year {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.35rem;
}

.timeline-item h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.timeline-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ===== Products Page ===== */
.product-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.product-tab {
    padding: 0.6rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.product-tab.active,
.product-tab:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
    padding-bottom: 4rem;
    border-bottom: 1px solid var(--border);
}

.product-detail:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.product-detail.reverse { direction: rtl; }
.product-detail.reverse > * { direction: ltr; }

.product-detail-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.product-detail-image img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}

.product-tag {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    background: rgba(0, 102, 255, 0.08);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    margin-bottom: 1rem;
}

.product-detail h2 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.product-detail > div > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.product-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.product-features li::before {
    content: '✓';
    color: var(--accent);
    font-weight: 700;
}

/* ===== Solutions Page ===== */
.solution-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    margin-bottom: 2rem;
    transition: box-shadow var(--transition);
}

.solution-card:hover { box-shadow: var(--shadow-lg); }

.solution-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.solution-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(0, 102, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.solution-header h2 {
    font-size: 1.35rem;
    font-weight: 800;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.solution-block h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.solution-block p,
.solution-block ul {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.solution-block ul { padding-left: 1rem; list-style: disc; }

/* ===== Contact Page ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
}

.contact-info-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.contact-info-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-info-card p {
    font-size: 0.925rem;
    color: var(--text-secondary);
}

.contact-form {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text);
    font-family: inherit;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.form-group textarea { min-height: 120px; resize: vertical; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.map-placeholder {
    height: 280px;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    border: 1px solid var(--border);
    margin-top: 2rem;
}

/* ===== Careers Page ===== */
.job-list { display: flex; flex-direction: column; gap: 1rem; }

.job-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.75rem 2rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition), box-shadow var(--transition);
    flex-wrap: wrap;
    gap: 1rem;
}

.job-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.job-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.job-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.benefit-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius);
}

.benefit-item span { font-size: 2rem; display: block; margin-bottom: 0.75rem; }
.benefit-item h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.35rem; }
.benefit-item p { font-size: 0.8rem; color: var(--text-secondary); }

/* ===== Footer ===== */
.site-footer {
    background: #0a1628;
    color: rgba(255, 255, 255, 0.7);
    padding: 4rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.8;
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.55);
}

.footer-brand .logo-brand { color: #fff; }
.footer-brand .logo-tagline { color: rgba(255, 255, 255, 0.45); }

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1.25rem;
}

.footer-col ul li { margin-bottom: 0.65rem; }

.footer-col a {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.55);
    transition: color var(--transition);
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
    flex-wrap: wrap;
    gap: 0.75rem;
}

.footer-bottom a { color: rgba(255, 255, 255, 0.55); }
.footer-bottom a:hover { color: #fff; }

/* ===== Animations ===== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .feature-grid,
    .process-steps,
    .logo-wall,
    .testimonial-grid,
    .news-grid,
    .values-grid,
    .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .solution-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .main-nav { display: none; }
    .main-nav.open {
        display: block;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--glass);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        padding: 1rem;
    }
    .main-nav.open ul { flex-direction: column; }
    .mobile-menu-btn { display: flex; }

    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .about-grid,
    .product-detail,
    .contact-grid { grid-template-columns: 1fr; }
    .product-detail.reverse { direction: ltr; }
    .feature-grid,
    .process-steps,
    .testimonial-grid,
    .news-grid,
    .values-grid,
    .benefits-grid,
    .logo-wall { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .section { padding: 4rem 0; }
    .cta-banner { padding: 3rem 1.5rem; }
}