/* ===== 基础样式 ===== */
:root {
    /* 明亮配色方案 */
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #06b6d4;
    --secondary-light: #22d3ee;
    --accent: #f472b6;
    --accent-light: #f9a8d4;
    --success: #10b981;
    --warning: #fbbf24;
    --danger: #ef4444;
    
    /* 明亮背景 */
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-card-light: #334155;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* 文字颜色 */
    --text-white: #ffffff;
    --text-light: #e2e8f0;
    --text-gray: #94a3b8;
    --text-dark: #64748b;
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --gradient-accent: linear-gradient(135deg, #f472b6 0%, #fb923c 100%);
    --gradient-sunrise: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-ocean: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-fire: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow: 0 4px 6px rgba(0,0,0,0.15);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.2);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.3);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.5);
    --shadow-glow-lg: 0 0 50px rgba(99, 102, 241, 0.6);
}

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

html {
    scroll-behavior: smooth;
}

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

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

/* ===== 粒子背景 ===== */
#particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
    overflow: hidden;
}

#particles-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
    animation: bgShift 15s ease-in-out infinite;
}

@keyframes bgShift {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

/* ===== 按钮样式 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-glow {
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4); }
    50% { box-shadow: 0 4px 25px rgba(99, 102, 241, 0.6), 0 0 30px rgba(99, 102, 241, 0.3); }
}

.btn-outline {
    background: transparent;
    color: var(--text-white);
    border: 2px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 17px;
}

.btn-block {
    width: 100%;
}

.btn-submit {
    position: relative;
}

.btn-loading {
    display: none;
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .btn-loading {
    display: inline;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
}

.logo-icon {
    font-size: 28px;
    animation: logoSpin 3s ease-in-out infinite;
}

@keyframes logoSpin {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-10deg); }
    75% { transform: rotate(10deg); }
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-links a:hover {
    color: var(--text-white);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-phone {
    color: var(--text-gray);
    font-weight: 500;
}

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

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-white);
    border-radius: 2px;
    transition: 0.3s;
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.gradient-mesh {
    position: absolute;
    inset: 0;
}

.mesh-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.6;
    animation: meshFloat 20s infinite ease-in-out;
}

.mesh-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.mesh-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
    bottom: -50px;
    left: -50px;
    animation-delay: -5s;
}

.mesh-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #f472b6, #fb923c);
    top: 40%;
    left: 30%;
    animation-delay: -10s;
}

.mesh-4 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #10b981, #06b6d4);
    bottom: 30%;
    right: 20%;
    animation-delay: -15s;
}

@keyframes meshFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.4);
    border-radius: 50px;
    font-size: 14px;
    color: var(--primary-light);
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.badge-pulse {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
    box-shadow: 0 0 10px var(--primary);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
    font-size: clamp(48px, 7vw, 80px);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

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

.gradient-animated {
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-subtitle {
    font-size: clamp(18px, 2vw, 22px);
    color: var(--text-gray);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.3s;
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.4);
    background: rgba(99, 102, 241, 0.1);
}

.stat-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

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

.stat-label {
    font-size: 14px;
    color: var(--text-gray);
    margin-top: 5px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-visual {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.floating-card {
    position: absolute;
    background: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 20px;
    padding: 20px 30px;
    display: flex;
    align-items: center;
    gap: 15px;
    animation: floatCard 6s infinite ease-in-out;
    box-shadow: var(--shadow-xl);
}

.card-icon {
    font-size: 32px;
}

.card-text {
    font-weight: 600;
    font-size: 16px;
}

.card-1 { top: 15%; left: 8%; animation-delay: 0s; }
.card-2 { top: 55%; left: 6%; animation-delay: -2s; }
.card-3 { top: 25%; right: 8%; animation-delay: -4s; }
.card-4 { top: 65%; right: 6%; animation-delay: -6s; }

@keyframes floatCard {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-25px) rotate(2deg); }
}

/* ===== Section 通用样式 ===== */
section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    padding: 10px 24px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    font-size: 14px;
    color: var(--primary-light);
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.section-title {
    font-size: clamp(36px, 5vw, 54px);
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
    letter-spacing: -1px;
}

.section-desc {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Features ===== */
.features {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px;
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.4s;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3), 0 0 30px rgba(99, 102, 241, 0.2);
    background: rgba(255,255,255,0.05);
}

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

.feature-icon-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 24px;
}

.feature-icon {
    font-size: 48px;
    display: block;
}

.icon-glow {
    position: absolute;
    inset: -10px;
    background: var(--gradient-primary);
    border-radius: 50%;
    filter: blur(20px);
    opacity: 0;
    transition: opacity 0.4s;
}

.feature-card:hover .icon-glow {
    opacity: 0.5;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-gray);
    margin-bottom: 20px;
}

.feature-highlight {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 50px;
    font-size: 13px;
    color: var(--primary-light);
    font-weight: 600;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

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

.ai-features {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 24px;
}

.ai-feature-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px;
    padding: 32px;
    transition: all 0.4s;
}

.ai-feature-card.large {
    grid-row: span 2;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-color: rgba(99, 102, 241, 0.3);
}

.ai-feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.ai-icon-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

.ai-icon {
    font-size: 40px;
    display: block;
}

.icon-ring {
    position: absolute;
    inset: -8px;
    border: 2px solid rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    animation: ringPulse 2s infinite;
}

@keyframes ringPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.5; }
}

.ai-feature-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.ai-feature-card p {
    color: var(--text-gray);
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.feature-list li {
    color: var(--text-light);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.check-icon {
    color: var(--success);
    font-weight: bold;
}

.ai-feature-visual {
    margin-top: 30px;
    background: rgba(0,0,0,0.3);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid rgba(255,255,255,0.1);
}

.visual-placeholder {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chat-bubble {
    background: rgba(99, 102, 241, 0.2);
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    animation: fadeIn 0.5s ease;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.chat-bubble.done {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
    border-color: rgba(16, 185, 129, 0.3);
}

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

/* ===== Collaboration ===== */
.collaboration {
    background: linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, rgba(30, 41, 59, 0.5) 100%);
}

.collab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
}

.collab-item {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    transition: all 0.3s;
}

.collab-item:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.4);
    background: rgba(99, 102, 241, 0.1);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.collab-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.collab-item h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

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

/* ===== Pricing ===== */
.pricing {
    background: var(--bg-dark);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.pricing-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px;
    padding: 40px 30px;
    transition: all 0.4s;
    position: relative;
}

.pricing-card.featured {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.15) 100%);
    border-color: rgba(99, 102, 241, 0.4);
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: rgba(99, 102, 241, 0.5);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 24px;
    background: var(--gradient-primary);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.pricing-badge.popular {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
}

.pricing-card h3 {
    font-size: 26px;
    margin-bottom: 8px;
    text-align: center;
}

.pricing-desc {
    text-align: center;
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 24px;
}

.pricing-price {
    text-align: center;
    padding: 24px;
    background: rgba(0,0,0,0.2);
    border-radius: 16px;
    margin-bottom: 24px;
    border: 1px solid rgba(255,255,255,0.05);
}

.price-label {
    display: block;
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 8px;
}

.price-value {
    font-size: 36px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 14px;
    color: var(--text-light);
}

.pricing-features li:last-child {
    border-bottom: none;
}

/* ===== Cases ===== */
.cases {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0) 100%);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.case-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
}

.case-card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.4);
    background: rgba(99, 102, 241, 0.1);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.case-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.case-card h4 {
    font-size: 20px;
    margin-bottom: 8px;
}

.case-card p {
    font-size: 14px;
    color: var(--text-gray);
}

/* ===== Contact ===== */
.contact {
    background: var(--bg-dark);
}

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

.contact-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    font-size: 14px;
    color: var(--primary-light);
    margin-bottom: 20px;
}

.contact-info h2 {
    font-size: 42px;
    margin-bottom: 16px;
    font-weight: 800;
}

.contact-info > p {
    color: var(--text-gray);
    margin-bottom: 40px;
    font-size: 16px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: rgba(255,255,255,0.03);
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: all 0.3s;
}

.contact-item:hover {
    border-color: rgba(99, 102, 241, 0.3);
    background: rgba(99, 102, 241, 0.05);
}

.contact-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 16px;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.contact-label {
    font-size: 13px;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-light);
}

.trust-badges {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: rgba(255,255,255,0.03);
    border-radius: 50px;
    font-size: 13px;
    color: var(--text-gray);
    border: 1px solid rgba(255,255,255,0.05);
}

.trust-icon {
    font-size: 16px;
}

.contact-form {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(10px);
}

.form-header {
    text-align: center;
    margin-bottom: 30px;
}

.form-header h3 {
    font-size: 26px;
    margin-bottom: 10px;
}

.form-header p {
    color: var(--text-gray);
    font-size: 14px;
}

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

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

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-light);
}

.label-icon {
    font-size: 16px;
}

.required {
    color: var(--danger);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    color: var(--text-white);
    font-size: 15px;
    transition: all 0.3s;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.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, 0.2);
    background: rgba(0,0,0,0.4);
}

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

.form-agreement {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--text-gray);
}

.form-agreement input[type="checkbox"] {
    width: auto;
    margin-top: 3px;
}

.form-agreement a {
    color: var(--primary-light);
    text-decoration: none;
}

.form-agreement a:hover {
    text-decoration: underline;
}

.form-hint {
    text-align: center;
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-dark);
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-card);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-gray);
    margin-top: 16px;
}

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

.social-link {
    padding: 8px 16px;
    background: rgba(255,255,255,0.05);
    border-radius: 50px;
    color: var(--text-gray);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s;
}

.social-link:hover {
    background: rgba(99, 102, 241, 0.2);
    color: var(--text-white);
}

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

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

.footer-column a {
    display: block;
    color: var(--text-gray);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-dark);
    font-size: 14px;
}

.footer-bottom p {
    margin-bottom: 8px;
}

/* ===== Floating Service ===== */
.floating-service {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
}

.service-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    font-size: 28px;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
    transition: all 0.3s;
    animation: servicePulse 2s infinite;
}

@keyframes servicePulse {
    0%, 100% { box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4); }
    50% { box-shadow: 0 10px 40px rgba(99, 102, 241, 0.6), 0 0 20px rgba(99, 102, 241, 0.3); }
}

.service-btn:hover {
    transform: scale(1.1);
}

.service-panel {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 320px;
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 20px;
    display: none;
    box-shadow: var(--shadow-xl);
}

.service-panel.active {
    display: block;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.service-header h4 {
    font-size: 18px;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-gray);
    font-size: 24px;
    cursor: pointer;
}

.service-quick p {
    color: var(--text-gray);
    margin-bottom: 16px;
    font-size: 14px;
}

.quick-q {
    display: block;
    width: 100%;
    padding: 12px 16px;
    margin-bottom: 10px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 12px;
    color: var(--text-light);
    text-align: left;
    cursor: pointer;
    transition: all 0.3s;
}

.quick-q:hover {
    background: rgba(99, 102, 241, 0.25);
    border-color: var(--primary);
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    max-width: 400px;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.modal-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    margin: 0 auto 20px;
}

.modal-icon.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    border: 2px solid var(--success);
}

.modal h3 {
    font-size: 26px;
    margin-bottom: 12px;
}

.modal p {
    color: var(--text-gray);
    margin-bottom: 8px;
}

.modal-hint {
    font-size: 13px;
    color: var(--text-dark);
    margin-bottom: 24px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .ai-features {
        grid-template-columns: 1fr 1fr;
    }
    
    .ai-feature-card.large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-actions {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .floating-card {
        display: none;
    }
    
    .ai-features {
        grid-template-columns: 1fr;
    }
    
    .ai-feature-card.large {
        grid-column: span 1;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-10px);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn-lg {
        width: 100%;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .collab-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}