/* 
 * Lovart - 设计代理网站样式表
 * 作者: AI助手
 * 版本: 1.0
 * 日期: 2023
 */

/* ===== 基础样式 ===== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&family=Playfair+Display:wght@400;700&family=Montserrat:wght@300;500;700&display=swap');

:root {
  /* 主色调 */
  --color-primary: #ff3366;
  --color-secondary: #6633ff;
  --color-accent-1: #33ccff;
  --color-accent-2: #ffcc33;
  --color-accent-3: #66cc99;
  
  /* 中性色 */
  --color-dark: #111111;
  --color-light: #ffffff;
  --color-gray: #888888;
  --color-bg: #ffffff;
  --color-text: #111111;
  --color-border: #e0e0e0;
  --color-card-bg: #f9f9f9;
  --color-shadow: rgba(0, 0, 0, 0.1);
  
  /* 字体 */
  --font-primary: 'Poppins', sans-serif;
  --font-display: 'Playfair Display', serif;
  --font-accent: 'Montserrat', sans-serif;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
}

/* 深色模式颜色变量 */
[data-theme="dark"] {
  --color-primary: #ff5c8a;
  --color-secondary: #8866ff;
  --color-accent-1: #66ddff;
  --color-accent-2: #ffdd66;
  --color-accent-3: #88ddbb;
  
  --color-dark: #f0f0f0;
  --color-light: #222222;
  --color-gray: #aaaaaa;
  --color-bg: #121212;
  --color-text: #f0f0f0;
  --color-border: #333333;
  --color-card-bg: #1e1e1e;
  --color-shadow: rgba(0, 0, 0, 0.3);
}

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  overflow-x: hidden;
  background-color: var(--color-bg);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ===== 通用组件 ===== */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-lg) 0;
  position: relative;
}

.section-title {
  font-family: var(--font-display);
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 2;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 80px;
  height: 4px;
  background-color: var(--color-primary);
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  background-color: var(--color-primary);
  color: var(--color-light);
  border: none;
  border-radius: 30px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn:hover {
  background-color: var(--color-secondary);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  background-color: var(--color-bg);
  box-shadow: 0 2px 10px var(--color-shadow);
  transition: all 0.3s ease;
}

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

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

.navbar-menu {
  display: flex;
  list-style: none;
  align-items: center;
}

.navbar-item {
  margin-left: var(--spacing-md);
}

.navbar-link {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.language-selector {
  display: flex;
  align-items: center;
}

.language-btn {
  background: none;
  border: none;
  cursor: pointer;
  margin-left: 10px;
  opacity: 0.6;
  transition: opacity 0.3s;
  color: var(--color-text);
}

.language-btn.active {
  opacity: 1;
  font-weight: bold;
}

.language-btn:hover {
  opacity: 1;
}

/* 深色模式切换按钮 */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: 15px;
  color: var(--color-text);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background-color: rgba(128, 128, 128, 0.1);
}

.theme-toggle i {
  font-size: 1.2rem;
}

/* 汉堡菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--color-text);
  transition: all 0.3s ease;
}

/* ===== 英雄区域 ===== */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 20rem;
  font-weight: 700;
  line-height: 0.9;
  margin-bottom: var(--spacing-md);
  color: var(--color-light);
  text-transform: uppercase;
  letter-spacing: -5px;
  background: linear-gradient(to right, var(--color-accent-1), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transform: rotate(-5deg);
  text-shadow: 3px 3px 0px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--color-light);
  max-width: 600px;
  margin-bottom: var(--spacing-md);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.1;
  z-index: 1;
}

/* ===== 探索案例区域 ===== */
.explore {
  background-color: var(--color-bg);
  padding: var(--spacing-xl) 0;
  position: relative;
}

.explore-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: minmax(200px, auto);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.explore-item {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 15px 30px var(--color-shadow);
  transition: all 0.3s ease;
  background-color: var(--color-card-bg);
}

.explore-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--color-shadow);
}

.explore-item:nth-child(1) {
  grid-column: 1 / span 7;
  grid-row: 1 / span 2;
  transform: rotate(2deg);
}

.explore-item:nth-child(2) {
  grid-column: 8 / span 5;
  grid-row: 1 / span 1;
  transform: rotate(-1deg);
}

.explore-item:nth-child(3) {
  grid-column: 8 / span 5;
  grid-row: 2 / span 1;
  transform: rotate(1deg);
}

.explore-item:nth-child(4) {
  grid-column: 1 / span 5;
  grid-row: 3 / span 1;
  transform: rotate(-2deg);
}

.explore-item:nth-child(5) {
  grid-column: 6 / span 7;
  grid-row: 3 / span 2;
  transform: rotate(1deg);
}

.explore-item:nth-child(6) {
  grid-column: 1 / span 5;
  grid-row: 4 / span 1;
  transform: rotate(2deg);
}

.explore-item:nth-child(7) {
  grid-column: 1 / span 6;
  grid-row: 5 / span 1;
  transform: rotate(-1deg);
}

.explore-item:nth-child(8) {
  grid-column: 7 / span 6;
  grid-row: 5 / span 1;
  transform: rotate(1deg);
}

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

.explore-content {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-md);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: var(--color-light);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.explore-item:hover .explore-content {
  transform: translateY(0);
}

.explore-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

.explore-text {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* ===== 特性区域 ===== */
.features {
  background-color: var(--color-dark);
  color: var(--color-light);
  padding: var(--spacing-xl) 0;
}

.features-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.features-title {
  color: var(--color-light);
}

.features-title::after {
  background-color: var(--color-accent-2);
}

.video-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: space-between;
}

.video-item {
  flex: 1 1 45%;
  min-width: 300px;
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 15px 30px var(--color-shadow);
  transform: rotate(-2deg);
}

.video-item:nth-child(2) {
  transform: rotate(2deg);
}

.video-item video {
  width: 100%;
  height: auto;
  display: block;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(var(--color-primary), 0.3), rgba(var(--color-secondary), 0.3));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.play-btn {
  width: 80px;
  height: 80px;
  background-color: var(--color-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 25px solid var(--color-primary);
  margin-left: 5px;
}

/* ===== 更多风格区域 ===== */
.more-style {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-bg);
  position: relative;
}

.style-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: var(--spacing-md);
}

.style-item {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  aspect-ratio: 1;
  box-shadow: 0 15px 30px var(--color-shadow);
  transition: all 0.3s ease;
}

.style-item:nth-child(odd) {
  transform: rotate(3deg);
}

.style-item:nth-child(even) {
  transform: rotate(-3deg);
}

.style-item:hover {
  transform: scale(1.05) rotate(0);
  z-index: 10;
}

.style-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.style-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(to bottom, rgba(var(--color-primary), 0.7), rgba(var(--color-secondary), 0.7));
  opacity: 0;
  transition: opacity 0.3s ease;
  padding: var(--spacing-md);
  text-align: center;
}

.style-item:hover .style-content {
  opacity: 1;
}

.style-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-light);
  margin-bottom: var(--spacing-sm);
}

.style-text {
  color: var(--color-light);
  font-size: 1rem;
  max-width: 80%;
}

/* ===== 信息部分 ===== */
.info {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-bg);
  position: relative;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.info-block {
  padding: 30px;
  border-radius: 10px;
  background-color: var(--color-card-bg);
  box-shadow: 0 5px 15px var(--color-shadow);
  transition: all 0.3s ease;
  margin-bottom: 30px;
}

.info-block:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--color-shadow);
}

.info-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
  color: var(--color-light);
}

.info-title {
  font-family: var(--font-display);
  font-size: 2rem;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.info-icon {
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.info-icon i {
  font-size: 1.5rem;
}

.info-content {
  padding: var(--spacing-md);
}

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

.info-content p:last-child {
  margin-bottom: 0;
}

.info-content ul,
.info-content ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-md);
}

.info-content li {
  margin-bottom: var(--spacing-xs);
}

/* FAQ 样式 */
.faq-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.faq-item {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding-bottom: var(--spacing-md);
}

.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.faq-question {
  font-family: var(--font-accent);
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
}

.faq-answer {
  font-size: 1rem;
  line-height: 1.6;
}

/* ===== 页脚 ===== */
.footer {
  background-color: var(--color-dark);
  color: var(--color-light);
  padding-top: var(--spacing-lg);
}

.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.footer-info {
  flex: 1 1 300px;
  margin-bottom: var(--spacing-md);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  display: block;
}

.footer-text {
  margin-bottom: var(--spacing-md);
  opacity: 0.8;
}

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

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-light);
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-link:hover {
  background-color: var(--color-primary);
  transform: translateY(-3px);
}

.footer-nav {
  flex: 1 1 200px;
  margin-bottom: var(--spacing-md);
}

.footer-title {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-light);
}

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

.footer-link-item {
  margin-bottom: var(--spacing-xs);
}

.footer-link {
  color: var(--color-gray);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-contact {
  flex: 1 1 300px;
}

.contact-item {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-xs);
  color: var(--color-gray);
}

.contact-icon {
  margin-right: var(--spacing-xs);
  color: var(--color-primary);
}

.copyright {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-gray);
}

.copyright a {
  color: var(--color-gray);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
  .section-title {
    font-size: 3rem;
  }
  
  .hero-title {
    font-size: 15rem;
  }
}

@media (max-width: 992px) {
  .section-title {
    font-size: 2.5rem;
  }
  
  .hero-title {
    font-size: 12rem;
  }
  
  .explore-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  
  .explore-item:nth-child(1) {
    grid-column: 1 / span 6;
    grid-row: auto;
  }
  
  .explore-item:nth-child(2) {
    grid-column: 1 / span 3;
    grid-row: auto;
  }
  
  .explore-item:nth-child(3) {
    grid-column: 4 / span 3;
    grid-row: auto;
  }
  
  .explore-item:nth-child(4) {
    grid-column: 1 / span 3;
    grid-row: auto;
  }
  
  .explore-item:nth-child(5) {
    grid-column: 4 / span 3;
    grid-row: auto;
  }
  
  .explore-item:nth-child(6) {
    grid-column: 1 / span 6;
    grid-row: auto;
  }
  
  .explore-item:nth-child(7) {
    grid-column: 1 / span 3;
    grid-row: auto;
  }
  
  .explore-item:nth-child(8) {
    grid-column: 4 / span 3;
    grid-row: auto;
  }
  
  .info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
  }
  
  .hero-title {
    font-size: 8rem;
  }
  
  .navbar-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: var(--color-light);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: right 0.3s ease;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
  }
  
  .navbar-menu.active {
    right: 0;
  }
  
  .navbar-item {
    margin: var(--spacing-sm) 0;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .explore-grid {
    grid-template-columns: 1fr;
  }
  
  .explore-item:nth-child(n) {
    grid-column: 1;
    grid-row: auto;
  }
  
  .video-item {
    flex: 1 1 100%;
    margin-bottom: var(--spacing-md);
  }
}

@media (max-width: 576px) {
  .section-title {
    font-size: 1.8rem;
  }
  
  .hero-title {
    font-size: 5rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
  
  .info-title {
    font-size: 1.5rem;
  }
  
  .info-icon {
    width: 40px;
    height: 40px;
  }
  
  .info-icon i {
    font-size: 1.2rem;
  }
}

/* 动画效果 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 1s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
.delay-4 { animation-delay: 0.8s; }
.delay-5 { animation-delay: 1s; }