/* 主样式文件 */

/* 变量 */
:root {
  /* 颜色 */
  --color-primary: #FF3366;
  --color-secondary: #3366FF;
  --color-dark: #111111;
  --color-light: #FFFFFF;
  --color-gray: #F5F5F5;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-background: #FFFFFF;
  --color-background-alt: #F5F5F5;
  --color-border: #EEEEEE;
  
  /* 字体 */
  --font-sans: 'Inter', sans-serif;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  
  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
  
  /* 容器 */
  --container-width: 1200px;
  --container-padding: 2rem;
  
  /* 索引 */
  --z-index-navbar: 100;
  --z-index-menu: 200;
  --z-index-loading: 300;
  --z-index-back-to-top: 50;
}

/* 基础样式 */
body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

body.no-scroll {
  overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-top: 0;
}

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

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

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: 6rem 0;
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding: var(--spacing-xl) 0;
  }
}

.text-primary {
  color: var(--color-primary);
}

/* 按钮 */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  outline: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  box-shadow: 0 4px 14px rgba(255, 51, 102, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 51, 102, 0.35);
  color: white;
}

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

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

/* 标题 */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--color-primary);
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-light);
}

/* 加载动画 */
.loading-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-background);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: var(--z-index-loading);
}

.loading-progress {
  position: relative;
  width: 136px;
  height: 136px;
  margin-bottom: 2rem;
}

.loading-circle {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.loading-percent {
  font-size: 2rem;
  font-weight: 700;
}

.progress-ring {
  position: absolute;
  top: 0;
  left: 0;
  transform: rotate(-90deg);
}

.progress-ring-circle {
  transition: stroke-dashoffset 0.1s;
  transform-origin: center;
}

.loading-text {
  margin-top: 1rem;
  font-size: 1.2rem;
  color: var(--color-text-light);
  min-height: 1.5em;
}

.loading-message {
  transition: opacity 0.3s ease;
}

/* 装饰元素 */
.decorative-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: var(--radius-full);
  opacity: 0.1;
}

.shape-1 {
  width: 300px;
  height: 300px;
  background-color: var(--color-primary);
  top: -100px;
  left: -100px;
}

.shape-2 {
  width: 200px;
  height: 200px;
  background-color: var(--color-secondary);
  bottom: -50px;
  right: -50px;
}

.shape-3 {
  width: 150px;
  height: 150px;
  background-color: var(--color-primary);
  bottom: 20%;
  left: 10%;
}

.shape-4 {
  width: 100px;
  height: 100px;
  background-color: var(--color-secondary);
  top: 20%;
  right: 10%;
}

.fluid-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, 
    rgba(255, 51, 102, 0.03) 0%, 
    rgba(51, 102, 255, 0.03) 25%, 
    rgba(255, 102, 0, 0.03) 50%, 
    rgba(102, 204, 255, 0.03) 75%, 
    rgba(255, 51, 102, 0.03) 100%);
  background-size: 400% 400%;
  filter: blur(50px);
  opacity: 0.5;
  animation: gradientBg 15s ease infinite;
}

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

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

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 0;
  z-index: var(--z-index-navbar);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  box-shadow: var(--shadow-sm);
}

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

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2rem;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
  }
  
  .menu-toggle {
    display: none;
  }
}

.nav-link {
  color: var(--color-text);
  font-weight: 500;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
}

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

/* 汉堡菜单 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  position: relative;
  z-index: calc(var(--z-index-menu) + 1);
}

.hamburger {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-fast);
}

.menu-toggle.menu-open .hamburger span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.menu-open .hamburger span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.menu-open .hamburger span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* 全屏菜单 */
.fullscreen-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(255, 255, 255, 0.98);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: var(--z-index-menu);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.fullscreen-menu.active {
  opacity: 1;
  visibility: visible;
}

.nav-mobile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.nav-mobile .nav-link {
  font-size: 2rem;
  font-weight: 600;
}

.nav-mobile .btn {
  margin-top: 1rem;
}

/* 英雄区 */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 0 5rem;
  overflow: hidden;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 4rem;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-title {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-title .text-reveal {
  display: block;
  opacity: 0;
  transform: translateY(30px);
}

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: translateY(30px);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  opacity: 0;
  transform: translateY(30px);
}

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

.hero-image-container {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(50px);
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.floating-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.floating-shape {
  position: absolute;
  border-radius: var(--radius-full);
  opacity: 0;
  transform: scale(0);
}

.floating-shape.shape-1 {
  width: 80px;
  height: 80px;
  background-color: rgba(255, 51, 102, 0.2);
  top: -40px;
  left: 10%;
}

.floating-shape.shape-2 {
  width: 60px;
  height: 60px;
  background-color: rgba(51, 102, 255, 0.2);
  bottom: 10%;
  right: -20px;
}

.floating-shape.shape-3 {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 51, 102, 0.2);
  bottom: -20px;
  left: 30%;
}

.fluid-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

@media (min-width: 768px) {
  .hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
  }
  
  .hero-content {
    margin-bottom: 0;
  }
  
  .hero-title {
    font-size: 4rem;
  }
  
  .hero-visual {
    margin-top: 0;
  }
}

/* 文字动画 */
.text-reveal {
  display: block;
  overflow: hidden;
}

/* 关于部分 */
.about-content {
  margin-bottom: var(--spacing-lg);
}

.about-text {
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
}

.about-text p {
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

@media (min-width: 768px) {
  .stats-container {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background-color: var(--color-gray);
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast);
}

.stat-item:hover {
  transform: translateY(-5px);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-weight: 500;
}

.team-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-lg);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.team-member {
  text-align: center;
}

.member-image-container {
  width: 180px;
  height: 180px;
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 0 auto 1.5rem;
  box-shadow: var(--shadow-md);
}

.member-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.member-name {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.member-role {
  color: var(--color-text-light);
}

/* 作品展示 */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  background-color: transparent;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.portfolio-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.portfolio-image-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.portfolio-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
  padding: 1.5rem;
  text-align: center;
}

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

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

.portfolio-title {
  color: white;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.portfolio-category {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1.5rem;
}

.portfolio-link {
  color: white;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 2px;
  transition: all var(--transition-fast);
}

.portfolio-link:hover {
  color: var(--color-primary);
}

/* 服务部分 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.service-card {
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.service-icon {
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-description {
  color: var(--color-text-light);
}

/* 联系部分 */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
}

@media (min-width: 768px) {
  .contact-content {
    grid-template-columns: 1fr 2fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

.contact-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-text h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.contact-text p {
  color: var(--color-text-light);
}

.contact-form-container {
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

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

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

/* 页脚 */
.footer {
  background-color: #111;
  color: white;
  padding: 4rem 0 2rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 700;
}

.footer-logo a {
  color: white;
}

.footer-social {
  display: flex;
  gap: 1.5rem;
}

.social-link {
  color: white;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
  color: rgba(255, 255, 255, 0.7);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

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

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

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: var(--z-index-back-to-top);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  border: none;
  box-shadow: var(--shadow-md);
}

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

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

/* 动画类 */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* 响应式设计 */
@media (max-width: 1200px) {
  .hero-title {
    font-size: 3.5rem;
  }
  
  .stats-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .hero .container {
    flex-direction: column;
    text-align: center;
    gap: 3rem;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-visual {
    width: 100%;
    max-width: 600px;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .contact-info {
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  .contact-item {
    flex: 1;
    min-width: 250px;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1.5rem;
  }
  
  .nav-desktop {
    display: none;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .stats-container {
    gap: 1.5rem;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .team-grid {
    grid-template-columns: 1fr;
    max-width: 350px;
    margin: 0 auto;
  }
  
  .footer-content, .footer-bottom {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-description {
    font-size: 1.1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .section {
    padding: 4rem 0;
  }
  
  .section-header {
    margin-bottom: 3rem;
  }
  
  .stats-container {
    grid-template-columns: 1fr;
  }
  
  .contact-item {
    min-width: 100%;
  }
}