/* 糖心二次元与插画创作平台 - 主样式表 */
/* 薄荷绿+樱花粉清新二次元风格 */

:root {
  --primary: #00BFA5;
  --secondary: #FFB7C5;
  --bg: #F0FFF4;
  --card: #FFFFFF;
  --accent: #7C4DFF;
  --text: #37474F;
  --text-light: #607D8B;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 6px 24px rgba(0, 191, 165, 0.12);
  --shadow-hover: 0 12px 36px rgba(0, 191, 165, 0.2);
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.06);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-title: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-price: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
}

/* 重置与基础 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.8;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

/* 容器 */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 头部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--secondary);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo .logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-main a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-main a:hover,
.nav-main a.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}

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

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

/* 英雄区 */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(0, 191, 165, 0.05) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(255, 183, 197, 0.05) 0%, transparent 50%);
  animation: heroFloat 20s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-2%, -1%); }
}

.hero-title {
  font-size: 3rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-light);
  max-width: 680px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 1;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #00E5CC);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 191, 165, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 191, 165, 0.4);
  color: #fff;
}

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

.btn-secondary:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #9C7CFF);
  color: #fff;
  box-shadow: 0 4px 16px rgba(124, 77, 255, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124, 77, 255, 0.4);
  color: #fff;
}

/* 区块标题 */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.section-header p {
  color: var(--text-light);
  font-size: 1.05rem;
  margin-top: 16px;
}

/* 模块区块 */
.section {
  padding: 80px 0;
}

.section-alt {
  background: #fff;
}

/* 瀑布流画廊 */
.masonry-grid {
  columns: 4;
  column-gap: 20px;
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: 20px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  background: var(--card);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.masonry-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

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

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

.masonry-item img {
  width: 100%;
  transition: transform 0.5s ease;
}

.masonry-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: #fff;
  opacity: 0;
  transition: var(--transition);
}

.masonry-overlay .artist-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.masonry-overlay .like-count {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  margin-top: 4px;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

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

.card:hover .card-image img {
  transform: scale(1.08);
}

.card-body {
  padding: 20px;
}

.card-title {
  font-size: 1.1rem;
  margin-bottom: 8px;
  font-weight: 600;
}

.card-desc {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-light);
}

/* 标签 */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  background: rgba(0, 191, 165, 0.1);
  color: var(--primary);
  transition: var(--transition);
}

.tag:hover {
  background: var(--primary);
  color: #fff;
  transform: scale(1.05);
}

.tag-pink {
  background: rgba(255, 183, 197, 0.2);
  color: #E91E63;
}

.tag-purple {
  background: rgba(124, 77, 255, 0.1);
  color: var(--accent);
}

/* 画师卡片 */
.artist-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.artist-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-hover);
  border-left: 4px solid var(--primary);
}

.artist-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--secondary);
}

.artist-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.artist-info .artist-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.artist-status {
  margin-left: auto;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-open {
  background: rgba(0, 191, 165, 0.1);
  color: var(--primary);
}

.status-busy {
  background: rgba(255, 183, 197, 0.2);
  color: #E91E63;
}

/* 价格表 */
.price-table {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.price-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.price-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.price-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.price-card.featured {
  border: 2px solid var(--primary);
}

.price-card.featured::before {
  height: 6px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.price-amount {
  font-family: var(--font-price);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  margin: 16px 0;
}

.price-amount .currency {
  font-size: 1.2rem;
  vertical-align: super;
}

.price-features {
  list-style: none;
  margin: 20px 0;
  text-align: left;
}

.price-features li {
  padding: 8px 0;
  border-bottom: 1px solid #f0f0f0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.price-features li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
}

/* 教程卡片 */
.tutorial-card {
  position: relative;
}

.tutorial-card .difficulty {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  z-index: 2;
}

.difficulty-beginner { background: var(--primary); }
.difficulty-intermediate { background: #FF9800; }
.difficulty-advanced { background: var(--accent); }

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.faq-question {
  padding: 20px 24px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--primary);
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--text-light);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  padding: 0 24px 20px;
  max-height: 500px;
}

/* 面包屑 */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.9rem;
  color: var(--text-light);
}

.breadcrumb a {
  color: var(--text-light);
}

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

.breadcrumb span {
  margin: 0 8px;
  color: #ccc;
}

/* 页脚 */
.site-footer {
  background: #263238;
  color: #B0BEC5;
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: #fff;
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-links h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 16px;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #B0BEC5;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid #37474F;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
}

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

/* 搜索框 */
.search-box {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 16px 24px;
  padding-right: 56px;
  border: 2px solid #e0e0e0;
  border-radius: 50px;
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
  background: var(--card);
}

.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 191, 165, 0.1);
}

.search-box button {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.search-box button:hover {
  background: var(--accent);
}

/* 投票组件 */
.vote-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.vote-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.vote-card:hover {
  box-shadow: var(--shadow-hover);
}

.vote-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.vote-btn {
  margin: 16px;
  padding: 10px 24px;
  border-radius: 50px;
  border: 2px solid var(--primary);
  background: transparent;
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.vote-btn:hover {
  background: var(--primary);
  color: #fff;
}

.vote-count {
  font-family: var(--font-price);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
}

/* 角色设定展示 */
.character-views {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.character-view {
  text-align: center;
}

.character-view img {
  border-radius: var(--radius-sm);
  border: 2px solid var(--secondary);
  margin-bottom: 8px;
}

.character-view span {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* 步骤展示 */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.step-item {
  text-align: center;
  position: relative;
}

.step-item img {
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  border: 2px solid transparent;
  transition: var(--transition);
}

.step-item:hover img {
  border-color: var(--primary);
  box-shadow: 0 0 16px rgba(0, 191, 165, 0.3);
}

.step-number {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 28px;
  height: 28px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

/* 挑战赛 */
.challenge-banner {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius);
  padding: 40px;
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.challenge-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
}

.challenge-banner h3 {
  color: #fff;
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.challenge-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 20px;
}

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

.challenge-stat .num {
  font-family: var(--font-price);
  font-size: 2rem;
  font-weight: 800;
}

.challenge-stat .label {
  font-size: 0.85rem;
  opacity: 0.8;
}

/* 资源下载 */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.resource-item {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.resource-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.resource-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
}

/* 页面内容区 */
.page-content {
  padding: 40px 0 80px;
}

.page-content .content-body {
  max-width: 900px;
  margin: 0 auto;
}

.content-body h2 {
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--secondary);
}

.content-body p {
  margin-bottom: 16px;
  line-height: 1.9;
}

.content-body ul, .content-body ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.content-body li {
  margin-bottom: 8px;
  line-height: 1.7;
}

/* 404页面 */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px;
}

.error-code {
  font-family: var(--font-price);
  font-size: 8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

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

@keyframes heartBurst {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.8; }
  100% { transform: scale(0); opacity: 0; }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.heart-animation {
  position: absolute;
  color: #E91E63;
  font-size: 1.2rem;
  animation: heartBurst 0.8s ease forwards;
  pointer-events: none;
}

/* 滚动渐入 */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 响应式 */
@media (max-width: 1024px) {
  .masonry-grid {
    columns: 3;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
  
  .nav-main {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow);
    border-radius: 0 0 var(--radius) var(--radius);
  }
  
  .nav-main.active {
    display: flex;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .masonry-grid {
    columns: 2;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .vote-section {
    grid-template-columns: 1fr;
  }
  
  .character-views {
    grid-template-columns: 1fr;
  }
  
  .challenge-stats {
    flex-direction: column;
    gap: 16px;
  }
  
  .section {
    padding: 48px 0;
  }
  
  .price-table {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .masonry-grid {
    columns: 1;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .container {
    padding: 0 16px;
  }
}

/* 打印样式 */
@media print {
  .site-header, .site-footer, .nav-toggle {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
}