/* ========================================
   德恩鹤奥科技 - 企业官网样式
   高端科技感主题
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-bg-secondary: #111118;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-border: rgba(255, 255, 255, 0.1);
    --color-text: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-muted: rgba(255, 255, 255, 0.5);
    
    /* Brand Colors */
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-secondary: #06b6d4;
    --color-accent: #f59e0b;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #06b6d4 100%);
    --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --gradient-dark: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;
    
    /* Typography */
    --font-primary: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    --shadow-glow-cyan: 0 0 40px rgba(6, 182, 212, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
    background: var(--color-bg-card);
}

.nav-cta {
    background: var(--gradient-primary);
    color: var(--color-text) !important;
    margin-left: var(--spacing-sm);
}

.nav-cta:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

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

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

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

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing-3xl) + 60px) 0 var(--spacing-3xl);
    overflow: hidden;
}

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

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--color-secondary);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: #a855f7;
    top: 50%;
    left: 30%;
    animation-delay: -10s;
}

#particleCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero {
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.hero-visual {
    position: relative;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.hero-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-glow);
    animation: float 8s ease-in-out infinite;
}

.hero-image-glow {
    position: absolute;
    inset: -20px;
    background: var(--gradient-primary);
    border-radius: calc(var(--radius-xl) + 20px);
    opacity: 0.3;
    filter: blur(60px);
    z-index: -1;
    animation: pulse 4s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--spacing-lg);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-lg);
}

.title-line {
    display: block;
}

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

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    max-width: 640px;
    margin: 0 auto var(--spacing-xl);
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
}

.btn svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: translateX(4px);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-border);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-white {
    background: var(--color-text);
    color: var(--color-bg);
}

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

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

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3xl);
}

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

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-text-muted);
    border-radius: var(--radius-full);
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-text-muted);
    border-radius: var(--radius-full);
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

/* ========================================
   Section Common Styles
   ======================================== */
section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-header {
    margin-bottom: var(--spacing-3xl);
}

.section-header.center {
    text-align: center;
}

.section-tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.section-desc {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
}

.section-header.center .section-desc {
    margin: 0 auto;
}

/* ========================================
   Services Section
   ======================================== */
.services {
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1620712943543-bcc4688e7485?w=1200&q=80') no-repeat center center;
    background-size: cover;
    opacity: 0.05;
    mask-image: linear-gradient(to left, rgba(0,0,0,1), transparent);
    -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1), transparent);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

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

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.service-card.featured {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, var(--color-bg-card) 100%);
}

.service-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gradient-accent);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.service-icon {
    width: 64px;
    height: 64px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.service-desc {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.service-features {
    margin-bottom: var(--spacing-lg);
}

.service-features li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    padding-left: 1.25rem;
    position: relative;
}

.service-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary);
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: gap var(--transition-fast);
}

.service-link svg {
    width: 16px;
    height: 16px;
}

.service-link:hover {
    gap: var(--spacing-sm);
}

/* ========================================
   Capabilities Section
   ======================================== */
.capabilities {
    position: relative;
    overflow: hidden;
}

.capabilities::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: url('https://images.unsplash.com/photo-1635070041078-e363dbe005cb?w=1200&q=80') no-repeat center bottom;
    background-size: cover;
    opacity: 0.03;
}

.capabilities-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.tech-stack {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.tech-category h4 {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tech-tag {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.tech-tag:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Orbit Animation */
.capabilities-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit-container {
    position: relative;
    width: 400px;
    height: 400px;
}

.orbit {
    position: absolute;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.orbit-1 {
    width: 300px;
    height: 300px;
    animation: rotate 20s linear infinite;
}

.orbit-2 {
    width: 220px;
    height: 220px;
    animation: rotate 15s linear infinite reverse;
}

.orbit-3 {
    width: 140px;
    height: 140px;
    animation: rotate 10s linear infinite;
}

.orbit-item {
    position: absolute;
    width: 48px;
    height: 48px;
    background: var(--color-bg);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    animation: counter-rotate 20s linear infinite;
}

.orbit-1 .orbit-item {
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
}

.orbit-2 .orbit-item {
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    animation-name: counter-rotate-reverse;
    animation-duration: 15s;
}

.orbit-3 .orbit-item {
    right: -24px;
    top: 50%;
    transform: translateY(-50%);
    animation-name: counter-rotate;
    animation-duration: 10s;
}

.orbit-item svg {
    width: 24px;
    height: 24px;
}

.orbit-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    box-shadow: var(--shadow-glow);
}

.orbit-center svg {
    width: 40px;
    height: 40px;
}

/* ========================================
   Consulting Section
   ======================================== */
.consulting {
    background: var(--color-bg-secondary);
}

.consulting-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.consulting-visual {
    order: -1;
}

.consulting-image {
    position: relative;
    height: 500px;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.consulting-bg-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
}

.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.4) 0%, rgba(6, 182, 212, 0.3) 100%);
    border-radius: var(--radius-xl);
}

.floating-cards {
    position: relative;
    height: 100%;
}

.float-card {
    position: absolute;
    background: rgba(17, 17, 24, 0.9);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    backdrop-filter: blur(10px);
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--shadow-lg);
}

.float-card .card-icon {
    font-size: 1.5rem;
}

.float-card .card-text {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 10%;
    animation-delay: -2s;
}

.card-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: -4s;
}

.consulting-services {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.consult-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.consult-item:hover {
    border-color: var(--color-primary);
    transform: translateX(8px);
}

.consult-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.consult-icon svg {
    width: 24px;
    height: 24px;
}

.consult-info h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.consult-info p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ========================================
   Cases Section
   ======================================== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

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

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

.case-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-card:hover .case-image img {
    transform: scale(1.05);
}

.case-content {
    padding: var(--spacing-lg);
}

.case-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-bg);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.case-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.case-desc {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.case-stats {
    display: flex;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

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

.case-stat .stat-value {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-primary);
}

.case-stat .stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* ========================================
   About Section
   ======================================== */
.about {
    background: var(--color-bg-secondary);
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.value-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

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

.value-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.value-item h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.value-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* About Visual */
.about-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-graphic {
    position: relative;
    width: 400px;
    height: 400px;
}

.about-bg-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
    opacity: 0.6;
}

.graphic-element {
    position: absolute;
    border-radius: var(--radius-xl);
}

.el-1 {
    width: 200px;
    height: 200px;
    background: var(--gradient-primary);
    opacity: 0.3;
    top: 0;
    left: 0;
    animation: float 8s ease-in-out infinite;
}

.el-2 {
    width: 150px;
    height: 150px;
    background: var(--color-secondary);
    opacity: 0.2;
    bottom: 50px;
    right: 0;
    animation: float 8s ease-in-out infinite -4s;
}

.el-3 {
    width: 100px;
    height: 100px;
    background: var(--color-accent);
    opacity: 0.2;
    top: 100px;
    right: 50px;
    animation: float 8s ease-in-out infinite -2s;
}

.company-card {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    backdrop-filter: blur(10px);
}

.card-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
}

.card-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.card-logo svg {
    width: 100%;
    height: 100%;
}

.card-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.card-tagline {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?w=1600&q=80') no-repeat center center;
    background-size: cover;
    opacity: 0.1;
    border-radius: inherit;
}

.cta-box {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.cta-content h2 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    opacity: 0.9;
}

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

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-3xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.contact-icon svg {
    width: 20px;
    height: 20px;
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-text .label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.contact-text .value {
    font-weight: 600;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.social-link {
    width: 44px;
    height: 44px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-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='24' height='24' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.5)' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--color-bg);
    color: var(--color-text);
}

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

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-layout {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-icon {
    width: 32px;
    height: 32px;
}

.footer-logo .logo-icon img {
    border-radius: var(--radius-sm);
}

.footer-logo .logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.footer-desc {
    color: var(--color-text-secondary);
    max-width: 300px;
}

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

.footer-column h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
    cursor: pointer;
}

.footer-column a[title="敬请期待"] {
    cursor: not-allowed;
    opacity: 0.6;
}

.social-link[title="敬请期待"] {
    cursor: not-allowed;
    opacity: 0.5;
}

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

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer-beian a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

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

/* ========================================
   Animations
   ======================================== */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

@keyframes scroll {
    0% {
        opacity: 1;
        top: 8px;
    }
    100% {
        opacity: 0;
        top: 24px;
    }
}

@keyframes rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes counter-rotate {
    from {
        transform: translateX(-50%) rotate(0deg);
    }
    to {
        transform: translateX(-50%) rotate(-360deg);
    }
}

@keyframes counter-rotate-reverse {
    from {
        transform: translateX(-50%) rotate(0deg);
    }
    to {
        transform: translateX(-50%) rotate(360deg);
    }
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --font-size-6xl: 3.5rem;
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
    }
    
    .hero-stats {
        gap: var(--spacing-xl);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .capabilities-layout,
    .consulting-layout,
    .about-layout,
    .contact-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .consulting-visual {
        order: 1;
    }
    
    .consulting-content {
        order: 2;
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --spacing-3xl: 4rem;
    }
    
    .hero-visual {
        max-width: 90%;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-image {
        animation: none;
    }
    
    .consulting-image {
        height: 350px;
    }
    
    .about-graphic {
        width: 100%;
        max-width: 350px;
        height: 350px;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
    }
    
    .nav-cta {
        margin-left: 0;
        margin-top: var(--spacing-sm);
    }
    
    .hero {
        padding: calc(var(--spacing-2xl) + 60px) 0 var(--spacing-2xl);
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .stat-item {
        display: flex;
        align-items: baseline;
        justify-content: center;
        gap: var(--spacing-xs);
    }
    
    .stat-label {
        margin-top: 0;
        margin-left: var(--spacing-sm);
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .about-values {
        grid-template-columns: 1fr;
    }
    
    .cta-box {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-xl);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .orbit-container {
        width: 300px;
        height: 300px;
    }
    
    .orbit-1 {
        width: 220px;
        height: 220px;
    }
    
    .orbit-2 {
        width: 160px;
        height: 160px;
    }
    
    .orbit-3 {
        width: 100px;
        height: 100px;
    }
    
    .orbit-center {
        width: 60px;
        height: 60px;
    }
    
    .about-graphic {
        width: 300px;
        height: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .service-card,
    .contact-form-wrapper {
        padding: var(--spacing-lg);
    }
    
    .consult-item {
        flex-direction: column;
        text-align: center;
    }
    
    .float-card {
        padding: var(--spacing-sm);
    }
    
    .float-card .card-text {
        display: none;
    }
}

/* ========================================
   Scroll Reveal Animation
   ======================================== */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}