/* ========================================
   杭州飞镖人工智能科技有限公司 - 企业官网样式
   ======================================== */

/* CSS Variables */
:root {
    --primary: #3b82f6;
    --primary-dark: #1e40af;
    --primary-light: #60a5fa;
    --accent: #06b6d4;
    --accent-cyan: #22d3ee;
    --dark: #0f172a;
    --dark-secondary: #1e293b;
    --dark-tertiary: #334155;
    --light: #f8fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --seerai: #f59e0b;
    --seerai-light: #fbbf24;
    --redai: #ef4444;
    --redai-light: #f87171;
    --whistleai: #3b82f6;
    --whistleai-light: #60a5fa;
    --nixin: #8b5cf6;
    --nixin-light: #a78bfa;
    --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-family);
    color: var(--gray-800);
    background: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

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

.section {
    padding: 100px 0;
    position: relative;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--dark);
}

.logo-icon {
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    display: block;
    padding: 8px 16px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(59, 130, 246, 0.08);
}

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #f0f9ff 100%);
}

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

.hero-particles {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
    padding-top: 110px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: badgeBlink 2s ease-in-out infinite;
}

@keyframes badgeBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.15;
    color: var(--dark);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.125rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 64px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.45);
}

.btn-primary.red {
    background: linear-gradient(135deg, var(--redai), #dc2626);
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
}

.btn-primary.red:hover {
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.45);
}

.btn-primary.blue {
    background: linear-gradient(135deg, var(--whistleai), var(--primary-dark));
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.btn-primary.purple {
    background: linear-gradient(135deg, var(--nixin), #7c3aed);
    box-shadow: 0 4px 14px rgba(139, 92, 246, 0.35);
}

.btn-primary.purple:hover {
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.45);
}

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    border: 1.5px solid var(--gray-300);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(59, 130, 246, 0.04);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 0.9375rem;
}

.btn-full {
    width: 100%;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
}

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

.stat-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--dark);
    line-height: 1;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--dark), var(--gray-700));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
}

/* Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--gray-300);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--gray-400);
    border-radius: 2px;
    animation: scrollWheel 1.5s ease-in-out infinite;
}

@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(8px); opacity: 0; }
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-desc {
    font-size: 1.0625rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ========================================
   About Section
   ======================================== */
.about {
    background: #ffffff;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.about-card {
    padding: 40px 32px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    text-align: center;
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(59, 130, 246, 0.15);
}

.about-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(6, 182, 212, 0.1));
    border-radius: var(--radius-md);
    color: var(--primary);
}

.about-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.about-card p {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* About Story */
.about-story {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.story-content h3 {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 20px;
}

.story-content p {
    font-size: 1rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 16px;
}

.story-features {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.story-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-700);
}

.feature-check {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-check::after {
    content: '';
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) translate(-1px, -1px);
}

.story-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    position: relative;
    width: 320px;
    height: 320px;
}

.visual-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(6, 182, 212, 0.08));
    border-radius: 50%;
    animation: visualSpin 20s linear infinite;
}

.visual-bg::before,
.visual-bg::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(59, 130, 246, 0.15);
}

.visual-bg::before {
    inset: 20px;
}

.visual-bg::after {
    inset: 40px;
    border-color: rgba(6, 182, 212, 0.2);
}

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

.visual-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.visual-icon {
    color: var(--primary);
}

.visual-text {
    text-align: center;
}

.visual-text strong {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
}

.visual-text span {
    font-size: 0.875rem;
    color: var(--gray-400);
    font-weight: 500;
}

/* ========================================
   Products Section
   ======================================== */
.products {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.product-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-bottom: 100px;
}

.product-showcase:last-child {
    margin-bottom: 0;
}

.product-showcase.reverse {
    direction: rtl;
}

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

.product-visual {
    position: relative;
}

.product-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
}

.product-frame:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 30px 60px -12px rgba(0,0,0,0.15);
}

.product-frame img {
    width: 100%;
    height: auto;
    display: block;
}

.product-glow {
    position: absolute;
    inset: -20px;
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.4;
    filter: blur(40px);
}

.seerai-glow {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.4), rgba(251, 191, 36, 0.3));
}

.redai-glow {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.4), rgba(248, 113, 113, 0.3));
}

.whistleai-glow {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.4), rgba(6, 182, 212, 0.3));
}

.nixin-glow {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.4), rgba(167, 139, 250, 0.3));
}

.nixin-icon {
    background: linear-gradient(135deg, var(--nixin), #7c3aed);
}

.product-info {
    padding: 16px 0;
}

.product-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.product-logo-img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.product-brand-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--whistleai), var(--accent));
    border-radius: var(--radius-md);
    color: white;
}

.product-brand-text h3 {
    font-size: 1.625rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 4px;
}

.product-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(245, 158, 11, 0.1);
    color: var(--seerai);
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 100px;
}

.product-tag.red {
    background: rgba(239, 68, 68, 0.1);
    color: var(--redai);
}

.product-tag.blue {
    background: rgba(59, 130, 246, 0.1);
    color: var(--whistleai);
}

.product-tag.purple {
    background: rgba(139, 92, 246, 0.1);
    color: var(--nixin);
}

.product-desc {
    font-size: 1rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 32px;
}

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

.product-feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.product-feature:hover {
    border-color: rgba(59, 130, 246, 0.2);
    background: rgba(59, 130, 246, 0.02);
}

.feature-icon {
    font-size: 1.5rem;
    line-height: 1;
    flex-shrink: 0;
}

.product-feature strong {
    display: block;
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.product-feature span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.product-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ========================================
   Blog Section
   ======================================== */
.blog {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.blog-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(59, 130, 246, 0.15);
}

.blog-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(6, 182, 212, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid var(--gray-100);
}

.blog-image img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    border-radius: var(--radius-md);
    opacity: 0.8;
    transition: var(--transition);
}

.blog-card:hover .blog-image img {
    opacity: 1;
    transform: scale(1.05);
}

.blog-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.blog-category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 100px;
}

.blog-meta time {
    font-size: 0.8125rem;
    color: var(--gray-400);
}

.blog-content h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.5;
    margin-bottom: 12px;
}

.blog-content h3 a {
    color: inherit;
    transition: var(--transition);
}

.blog-content h3 a:hover {
    color: var(--primary);
}

.blog-content > p {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 16px;
}

.blog-readmore {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    transition: var(--transition);
}

.blog-readmore:hover {
    color: var(--primary-dark);
}

.blog-cta {
    text-align: center;
    padding: 24px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
}

.blog-cta p {
    font-size: 0.9375rem;
    color: var(--gray-500);
}

@media (max-width: 991px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background: #ffffff;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-info-panel {
    padding: 40px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
}

.contact-info-item:last-of-type {
    margin-bottom: 0;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-md);
    color: white;
    flex-shrink: 0;
}

.contact-detail h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.contact-detail p {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.6;
}

.contact-social {
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-200);
}

.contact-social h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    color: var(--gray-500);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

/* Contact QR */
.contact-qr-panel {
    padding: 40px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.contact-qr-card {
    text-align: center;
}

.contact-qr-card h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 24px;
}

.qr-placeholder {
    width: 160px;
    height: 160px;
    margin: 0 auto 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: var(--gray-50);
    border: 2px dashed var(--gray-200);
    border-radius: var(--radius-md);
    color: var(--gray-400);
}

.qr-placeholder span {
    font-size: 0.875rem;
    font-weight: 500;
}

.contact-qr-card p {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* Contact Form */
.contact-form-panel {
    padding: 40px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-lg);
}

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

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--gray-800);
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--dark);
    color: var(--gray-300);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

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

.footer-logo img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    font-size: 1.125rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.9375rem;
    color: var(--gray-400);
    line-height: 1.7;
}

.footer-links h4 {
    font-size: 0.9375rem;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
}

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

.footer-links a,
.footer-links li {
    font-size: 0.875rem;
    color: var(--gray-400);
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid var(--dark-tertiary);
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 991px) {
    .section {
        padding: 72px 0;
    }

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

    .about-story {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .story-visual {
        order: -1;
    }

    .product-showcase {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .product-showcase.reverse {
        direction: ltr;
    }

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

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

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

@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 4px;
        border-bottom: 1px solid var(--gray-100);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        width: 100%;
        padding: 12px 16px;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 479px) {
    .hero-title {
        font-size: 1.875rem;
    }

    .section {
        padding: 56px 0;
    }

    .about-card,
    .contact-info-panel,
    .contact-form-panel {
        padding: 24px;
    }

    .visual-card {
        width: 260px;
        height: 260px;
    }
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Scroll Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ========================================
   Product Float Navigation
   ======================================== */
.product-float-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 998;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-nav-item {
    position: relative;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 2px solid rgba(59, 130, 246, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: visible;
}

.float-nav-item img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    border-radius: 6px;
    transition: transform 0.3s ease;
}

.float-nav-item:hover {
    transform: scale(1.15);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

.float-nav-item:hover img {
    transform: scale(1.1);
}

.float-nav-item.active {
    border-color: var(--primary);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3), 0 0 0 2px var(--primary) inset;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(6, 182, 212, 0.08));
}

.float-nav-item.active::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid transparent;
    background: linear-gradient(135deg, var(--primary), var(--accent)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.6;
    animation: floatNavRing 2s ease-in-out infinite;
}

@keyframes floatNavRing {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.08); opacity: 0.3; }
}

.float-nav-tooltip {
    position: absolute;
    right: calc(100% + 14px);
    top: 50%;
    transform: translateY(-50%) translateX(8px);
    padding: 6px 14px;
    background: var(--dark);
    color: white;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.float-nav-tooltip::after {
    content: '';
    position: absolute;
    right: -5px;
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-left-color: var(--dark);
}

.float-nav-item:hover .float-nav-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

/* Product-specific active colors */
.float-nav-item[data-target="product-nixin"].active {
    border-color: #8b5cf6;
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3), 0 0 0 2px #8b5cf6 inset;
}

.float-nav-item[data-target="product-seerai"].active {
    border-color: #f59e0b;
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3), 0 0 0 2px #f59e0b inset;
}

.float-nav-item[data-target="product-whistle"].active {
    border-color: #3b82f6;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3), 0 0 0 2px #3b82f6 inset;
}

.float-nav-item[data-target="product-redai"].active {
    border-color: #ef4444;
    box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3), 0 0 0 2px #ef4444 inset;
}

/* Hide on mobile */
@media (max-width: 991px) {
    .product-float-nav {
        display: none;
    }
}

/* ========================================
   Coming Soon Modal
   ======================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    padding: 24px;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 400px;
    padding: 48px 36px 36px;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(59, 130, 246, 0.12);
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset,
        0 0 80px rgba(59, 130, 246, 0.08);
    text-align: center;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border: none;
    border-radius: 50%;
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--dark);
    transform: rotate(90deg);
}

.modal-icon {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-icon svg {
    position: relative;
    z-index: 1;
}

.modal-icon-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(6, 182, 212, 0.1));
    animation: modalPulse 2s ease-in-out infinite;
}

.modal-icon-ring::before {
    content: '';
    position: absolute;
    inset: 8px;
    border-radius: 50%;
    border: 2px solid rgba(59, 130, 246, 0.15);
    animation: modalSpin 8s linear infinite;
}

@keyframes modalPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

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

.modal-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.modal-desc {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 24px;
}

.modal-progress {
    width: 120px;
    height: 4px;
    margin: 0 auto 20px;
    background: var(--gray-200);
    border-radius: 2px;
    overflow: hidden;
}

.modal-progress-bar {
    height: 100%;
    width: 60%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    animation: modalProgress 2s ease-in-out infinite;
}

@keyframes modalProgress {
    0% { width: 0%; opacity: 0.5; }
    50% { width: 70%; opacity: 1; }
    100% { width: 100%; opacity: 0.3; }
}

.modal-dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-bottom: 24px;
}

.modal-dots span {
    width: 6px;
    height: 6px;
    background: var(--gray-300);
    border-radius: 50%;
    animation: modalDot 1.4s ease-in-out infinite;
}

.modal-dots span:nth-child(2) { animation-delay: 0.2s; }
.modal-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes modalDot {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.4); opacity: 1; background: var(--primary); }
}

.modal-btn {
    padding: 12px 40px;
    font-size: 0.9375rem;
}

/* ========================================
   Premium Enhancements
   ======================================== */

/* Button Shimmer Effect */
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.6s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

/* Enhanced Hero Background */
.hero {
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 40%, #f0f9ff 100%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
}

.hero-particles::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

/* Enhanced Product Feature Cards */
.product-feature {
    position: relative;
    overflow: hidden;
}

.product-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-feature:hover::before {
    opacity: 1;
}

/* Enhanced About Cards */
.about-card {
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.04) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.about-card:hover::before {
    opacity: 1;
}

/* Enhanced Section Spacing */
.section {
    padding: 120px 0;
}

/* Enhanced Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 40%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Enhanced Nav */
.navbar {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(24px) saturate(200%);
    -webkit-backdrop-filter: blur(24px) saturate(200%);
}

/* Contact Info Items Enhanced */
.contact-info-item {
    position: relative;
    padding-left: 16px;
}

.contact-info-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, var(--primary), var(--accent));
    border-radius: 2px;
    transition: height 0.3s ease;
}

.contact-info-item:hover::before {
    height: 80%;
}

/* Product Section Divider */
.product-showcase {
    position: relative;
}

.product-showcase::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--gray-300), transparent);
    border-radius: 2px;
}

.product-showcase:last-child::after {
    display: none;
}