/* ========================================
   鲸鹿文化 企业官网 - 全局样式
   基于 ui-ux-pro-max 设计系统
   ======================================== */

/* CSS Variables */
:root {
  /* Colors */
  --color-primary: #2563EB;
  --color-secondary: #3B82F6;
  --color-cta: #F97316;
  --color-background: #F8FAFC;
  --color-text: #1E293B;
  --color-text-light: #64748B;
  --color-white: #FFFFFF;
  --color-border: rgba(255, 255, 255, 0.2);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-bg-solid: rgba(255, 255, 255, 0.95);
  --glass-border: 1px solid rgba(255, 255, 255, 0.3);
  --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.1);
  --glass-blur: blur(20px);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-secondary);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Navigation - Glassmorphism */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-md) 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  padding: var(--spacing-sm) 0;
}

.navbar .container {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 48px;
  padding-left: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.logo img {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
}

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--glass-bg-solid);
  backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  padding: 0.5rem 0;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  list-style: none;
  z-index: 1001;
}

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

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: 0.75rem 1.25rem;
  color: var(--color-text);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--spacing-sm);
}

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

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

.hero-background {
  position: absolute;
  inset: 0;
  background: url('../images/hero-bg.png') center/cover no-repeat;
  opacity: 0.85;
}

.hero-particles {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.1) 0%, transparent 40%),
                    radial-gradient(circle at 40% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 40%);
}

.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-cta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

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

.btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 10px 40px rgba(37, 99, 235, 0.3);
}

.btn-cta {
  background: var(--color-cta);
  color: var(--color-white);
  font-size: var(--font-size-lg);
  padding: var(--spacing-lg) var(--spacing-2xl);
}

.btn-cta:hover {
  background: #ea580c;
  transform: translateY(-2px);
  box-shadow: 0 10px 40px rgba(249, 115, 22, 0.4);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Section */
.section {
  padding: var(--spacing-3xl) 0;
}

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

.section-header h2 {
  margin-bottom: var(--spacing-md);
}

.section-header p {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* Cards - Glassmorphism */
.card {
  background: var(--glass-bg-solid);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(31, 38, 135, 0.15);
}

.card-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
}

.card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-white);
}

.card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.card p {
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Features Section */
.features {
  background: var(--color-white);
}

.features .grid {
  margin-top: var(--spacing-2xl);
}

/* About Section */
.about {
  background: linear-gradient(180deg, var(--color-background) 0%, var(--color-white) 100%);
}

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

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

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

.about-text h2 {
  margin-bottom: var(--spacing-lg);
}

.about-text p {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
}

/* Services Section */
.services {
  background: var(--color-background);
}

.services .grid {
  margin-top: var(--spacing-2xl);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
}

.cta-section .btn-cta {
  background: var(--color-white);
  color: var(--color-primary);
}

.cta-section .btn-cta:hover {
  background: var(--color-cta);
  color: var(--color-white);
}

/* Footer */
.footer {
  background: #0f172a;
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
}

.footer h4 {
  color: var(--color-white);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-lg);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
}

/* Contact Page */
.contact-section {
  padding-top: 120px;
  padding-bottom: var(--spacing-3xl);
  min-height: 100vh;
}

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

.contact-info {
  background: var(--glass-bg-solid);
  backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
}

.contact-info h3 {
  margin-bottom: var(--spacing-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.contact-item svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  flex-shrink: 0;
}

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

.contact-item p {
  color: var(--color-text-light);
  margin-bottom: 0;
}

.contact-form {
  background: var(--glass-bg-solid);
  backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

/* Page Banner */
.page-banner {
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  padding: 150px 0 80px;
  text-align: center;
  color: var(--color-white);
}

.page-banner h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.page-banner p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: var(--spacing-2xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-cta));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--spacing-2xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--spacing-2xl) - 5px);
  top: 5px;
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
}

.timeline-year {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-item h4 {
  margin-bottom: var(--spacing-sm);
}

/* Values */
.value-item {
  text-align: center;
  padding: var(--spacing-xl);
}

.value-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(249, 115, 22, 0.1));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-icon svg {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-content { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.875rem;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--glass-bg-solid);
    backdrop-filter: var(--glass-blur);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-sm);
    border-bottom: var(--glass-border);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .about-content,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand {
    max-width: 100%;
  }
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease forwards;
}

.animate-slideInLeft {
  animation: slideInLeft 0.6s ease forwards;
}

.animate-slideInRight {
  animation: slideInRight 0.6s ease forwards;
}

.animate-scaleIn {
  animation: scaleIn 0.6s ease forwards;
}

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

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }
.animate-delay-6 { animation-delay: 0.6s; }

/* Hover effects */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.hover-scale {
  transition: transform 0.3s ease;
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* Image hover zoom effect */
.img-zoom {
  overflow: hidden;
}

.img-zoom img {
  transition: transform 0.5s ease;
}

.img-zoom:hover img {
  transform: scale(1.1);
}

/* Focus States */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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