/* ================================================
   天津满利星达科技有限公司 - 现代科技风格
   ================================================ */

/* CSS Variables */
:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #a855f7;
    --accent: #06b6d4;
    --accent-pink: #ec4899;
    --accent-green: #22c55e;
    --accent-orange: #f97316;

    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: rgba(30, 41, 59, 0.8);
    --bg-card-solid: #1e293b;

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-hero: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #06b6d4 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.15) 0%, transparent 70%);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    --shadow-glow-lg: 0 0 60px rgba(99, 102, 241, 0.4);

    --border-color: rgba(99, 102, 241, 0.2);
    --border-hover: rgba(99, 102, 241, 0.5);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

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

ul { list-style: none; }

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

button, input, select, textarea { font-family: inherit; }

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ================================================
   Background Effects
   ================================================ */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.bg-animation::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(168, 85, 247, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
    animation: bg-shift 30s ease-in-out infinite;
}

@keyframes bg-shift {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, 2%) rotate(1deg); }
    66% { transform: translate(-1%, 1%) rotate(-1deg); }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.particles {
    position: absolute;
    inset: 0;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.4;
    animation: particle-rise 20s linear infinite;
}

@keyframes particle-rise {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 0.4; }
    90% { opacity: 0.4; }
    100% { transform: translateY(-100vh) scale(1); opacity: 0; }
}

/* ================================================
   Navigation
   ================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-hero);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    box-shadow: var(--shadow-glow);
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    padding: 10px 18px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--gradient-hero);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-glow);
    transition: var(--transition);
}

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

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

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

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ================================================
   Hero Section
   ================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 500px;
    height: 500px;
    background: var(--gradient-hero);
    filter: blur(150px);
    opacity: 0.2;
    border-radius: 50%;
}

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

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--primary-light);
    margin-bottom: 24px;
}

.hero-badge i {
    color: var(--accent);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

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

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 540px;
    line-height: 1.7;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-hero);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-lg);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-unit {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-left: 4px;
}

/* Hero Visual */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 450px;
    position: relative;
}

.hero-visual::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    animation: spin 30s linear infinite;
}

.hero-visual::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border: 1px dashed var(--border-color);
    border-radius: 50%;
    animation: spin 20s linear infinite reverse;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.tech-cube {
    width: 180px;
    height: 180px;
    position: relative;
    transform-style: preserve-3d;
    animation: cube-rotate 25s linear infinite;
}

@keyframes cube-rotate {
    0% { transform: rotateX(-20deg) rotateY(0deg); }
    100% { transform: rotateX(-20deg) rotateY(360deg); }
}

.cube-face {
    position: absolute;
    width: 180px;
    height: 180px;
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary);
}

.cube-front { transform: translateZ(90px); }
.cube-back { transform: rotateY(180deg) translateZ(90px); }
.cube-right { transform: rotateY(90deg) translateZ(90px); }
.cube-left { transform: rotateY(-90deg) translateZ(90px); }
.cube-top { transform: rotateX(90deg) translateZ(90px); }
.cube-bottom { transform: rotateX(-90deg) translateZ(90px); }

.floating-icons {
    position: absolute;
    inset: 0;
}

.float-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary);
    box-shadow: var(--shadow-lg);
    animation: float-icon 6s ease-in-out infinite;
}

.icon-1 { top: 5%; left: 5%; animation-delay: 0s; }
.icon-2 { top: 15%; right: 10%; animation-delay: -1s; }
.icon-3 { bottom: 25%; left: 0; animation-delay: -2s; }
.icon-4 { bottom: 10%; right: 5%; animation-delay: -3s; }
.icon-5 { top: 45%; left: 45%; animation-delay: -4s; }

@keyframes float-icon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.scroll-arrow span {
    display: block;
    width: 2px;
    height: 10px;
    background: var(--text-muted);
    border-radius: 2px;
    animation: scroll-bounce 2s ease-in-out infinite;
}

.scroll-arrow span:last-child {
    animation-delay: 0.15s;
}

@keyframes scroll-bounce {
    0%, 100% { opacity: 0.3; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(8px); }
}

/* ================================================
   Trusted Section
   ================================================ */
.trusted-section {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}

.trusted-label {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.trust-badges {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.trust-badge i {
    color: var(--primary);
    font-size: 1.1rem;
}

/* ================================================
   Section Styles
   ================================================ */
section {
    position: relative;
    z-index: 1;
}

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

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--primary-light);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ================================================
   About Section
   ================================================ */
.about {
    padding: 100px 0;
}

.about-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.about-visual {
    flex: 1;
    position: relative;
}

.about-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.about-image-wrapper img {
    width: 100%;
    border-radius: var(--radius-xl);
}

.image-overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    opacity: 0.2;
}

.experience-card {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--gradient-hero);
    padding: 24px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-glow);
}

.experience-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
}

.experience-text {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.about-text > p {
    color: var(--text-secondary);
    margin-bottom: 28px;
    line-height: 1.8;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-green);
    flex-shrink: 0;
}

.about-highlight {
    display: flex;
    gap: 16px;
}

.highlight-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 18px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    flex: 1;
}

.highlight-item i {
    font-size: 1.5rem;
    color: var(--primary);
}

.highlight-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ================================================
   Services Section
   ================================================ */
.services {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.service-card {
    position: relative;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px;
    overflow: hidden;
    transition: var(--transition);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.card-blue::before { background: linear-gradient(90deg, #3b82f6, #1d4ed8); }
.card-purple::before { background: linear-gradient(90deg, #8b5cf6, #6d28d9); }
.card-cyan::before { background: linear-gradient(90deg, #06b6d4, #0891b2); }
.card-green::before { background: linear-gradient(90deg, #22c55e, #16a34a); }
.card-orange::before { background: linear-gradient(90deg, #f97316, #ea580c); }
.card-pink::before { background: linear-gradient(90deg, #ec4899, #db2777); }

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.card-blue .card-icon { color: #3b82f6; }
.card-purple .card-icon { color: #8b5cf6; }
.card-cyan .card-icon { color: #06b6d4; }
.card-green .card-icon { color: #22c55e; }
.card-orange .card-icon { color: #f97316; }
.card-pink .card-icon { color: #ec4899; }

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-features {
    margin-bottom: 20px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.service-features i {
    font-size: 0.7rem;
    color: var(--primary);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.card-link:hover {
    gap: 10px;
}

.license-banner {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--bg-card-solid);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px 32px;
}

.license-icon {
    width: 56px;
    height: 56px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
}

.license-content h4 {
    margin-bottom: 6px;
}

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

/* ================================================
   Solutions Section
   ================================================ */
.solutions {
    padding: 100px 0;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.solution-item {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition);
}

.solution-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.solution-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

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

.solution-item:hover .solution-image img {
    transform: scale(1.1);
}

.solution-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.solution-item:hover .solution-overlay {
    opacity: 1;
}

.solution-btn {
    padding: 12px 28px;
    background: white;
    color: var(--bg-primary);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.solution-content {
    padding: 28px;
}

.solution-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-hero);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 16px;
}

.solution-content h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.solution-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ================================================
   Why Choose Section
   ================================================ */
.why-choose {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.why-content {
    display: flex;
    gap: 80px;
    align-items: center;
}

.why-text {
    flex: 1;
}

.why-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-top: 40px;
}

.why-item {
    display: flex;
    gap: 20px;
}

.why-icon {
    width: 56px;
    height: 56px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--primary);
    flex-shrink: 0;
}

.why-details h4 {
    font-size: 1.1rem;
    margin-bottom: 6px;
}

.why-details p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.why-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.tech-rings {
    position: relative;
    width: 280px;
    height: 280px;
}

.ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--border-color);
}

.ring-1 { inset: 0; animation: ring-pulse 3s ease-in-out infinite; }
.ring-2 { inset: 30px; animation: ring-pulse 3s ease-in-out infinite 0.5s; }
.ring-3 { inset: 60px; animation: ring-pulse 3s ease-in-out infinite 1s; }

@keyframes ring-pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.05); opacity: 1; }
}

.ring-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: var(--gradient-hero);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: var(--shadow-glow);
    animation: center-pulse 4s ease-in-out infinite;
}

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

/* ================================================
   Tech Stack Section
   ================================================ */
.tech-stack {
    padding: 100px 0;
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.tech-category {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.tech-category h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.tech-category h3 i {
    color: var(--primary);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-tag {
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.tech-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(99, 102, 241, 0.2);
}

/* ================================================
   Process Section
   ================================================ */
.process {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.process-timeline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.process-step {
    flex: 1;
    text-align: center;
    padding: 20px;
}

.step-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 12px;
}

.step-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary);
    margin: 0 auto 16px;
}

.process-step h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.process-step p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

.process-connector {
    color: var(--text-muted);
    font-size: 1rem;
}

/* ================================================
   Testimonials Section
   ================================================ */
.testimonials {
    padding: 100px 0;
}

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

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

.testimonial-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.testimonial-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    color: var(--accent-orange);
}

.testimonial-text {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-hero);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.author-info h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.author-info span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ================================================
   Partners Section
   ================================================ */
.partners {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.partners .section-header {
    margin-bottom: 50px;
}

.partners-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.partner-item {
    opacity: 0.4;
    transition: var(--transition);
}

.partner-item:hover {
    opacity: 1;
    transform: translateY(-5px);
}

.partner-logo {
    width: 100px;
    height: 100px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

/* ================================================
   CTA Section
   ================================================ */
.cta-section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    opacity: 0.1;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cta-content > p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 1.1rem;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* ================================================
   Contact Section
   ================================================ */
.contact {
    padding: 100px 0;
}

.contact-content {
    display: flex;
    gap: 60px;
}

.contact-info {
    flex: 1;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 24px;
    align-items: flex-start;
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.contact-details p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 32px;
}

.social-link {
    width: 48px;
    height: 48px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--gradient-hero);
    border-color: transparent;
    color: white;
    transform: translateY(-4px);
}

.contact-form-wrapper {
    flex: 1;
}

.contact-form {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px;
}

.contact-form h3 {
    margin-bottom: 24px;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

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

/* ================================================
   Footer
   ================================================ */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 24px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

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

.footer-section h4 {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-contact i {
    color: var(--primary);
}

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

.copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-legal {
    display: flex;
    gap: 16px;
}

.footer-legal a {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-legal span {
    color: var(--text-muted);
}

/* ================================================
   Back to Top
   ================================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-hero);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-glow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ================================================
   Responsive Design
   ================================================ */
@media (max-width: 1024px) {
    .solutions-grid {
        grid-template-columns: 1fr;
    }

    .tech-categories {
        grid-template-columns: 1fr;
    }

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

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

    .why-content {
        flex-direction: column;
    }

    .process-timeline {
        flex-wrap: wrap;
    }

    .process-connector {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-secondary);
        padding: 24px;
        gap: 8px;
        transform: translateY(-150%);
        transition: var(--transition);
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .btn-cta {
        display: none;
    }

    .about-content {
        flex-direction: column;
    }

    .experience-card {
        right: 0;
    }

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

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

    .contact-content {
        flex-direction: column;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .cta-actions {
        flex-direction: column;
    }

    .process-timeline {
        flex-direction: column;
        gap: 24px;
    }
}