/* ============================
   吃瓜大赛 - 影视娱乐法务与明星维权公告网
   核心样式表
   ============================ */

/* CSS变量定义 */
:root {
  --color-primary: #0A2540;
  --color-secondary: #C5A880;
  --color-bg: #F8F9FA;
  --color-card: #FFFFFF;
  --color-text: #2C3E50;
  --color-text-light: #6C757D;
  --color-border: #DEE2E6;
  --color-danger: #C0392B;
  --color-success: #27AE60;
  --font-serif: 'Noto Serif SC', 'SimSun', serif;
  --font-sans: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --shadow-sm: 0 2px 4px rgba(10,37,64,0.08);
  --shadow-md: 0 4px 12px rgba(10,37,64,0.12);
  --shadow-lg: 0 8px 24px rgba(10,37,64,0.16);
  --radius: 4px;
  --max-width: 1200px;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  line-height: 1.4;
  margin-bottom: 0.5em;
}

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

p {
  margin-bottom: 1em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 顶部导航栏 */
.site-header {
  background: var(--color-primary);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.site-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.site-logo .logo-text {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: #fff;
  font-weight: 700;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.main-nav a {
  color: rgba(255,255,255,0.85);
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  position: relative;
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-secondary);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-secondary);
  transition: var(--transition);
  transform: translateX(-50%);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 80%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* 首屏英雄区 */
.hero-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(10,37,64,0.92), rgba(10,37,64,0.75));
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
  padding: 3rem 1.5rem;
  max-width: 800px;
}

.hero-content h1 {
  color: #fff;
  font-size: 2.8rem;
  margin-bottom: 1rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.hero-content .hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
  font-family: var(--font-serif);
}

.hero-content p {
  font-size: 1rem;
  opacity: 0.9;
  line-height: 1.8;
}

.hero-badge {
  display: inline-block;
  background: var(--color-danger);
  color: #fff;
  padding: 0.3rem 1rem;
  border-radius: 2px;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* 通用模块区 */
.section {
  padding: 4rem 0;
}

.section-alt {
  background: var(--color-card);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  position: relative;
  display: inline-block;
  padding-bottom: 0.8rem;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--color-secondary);
}

.section-header p {
  color: var(--color-text-light);
  margin-top: 1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

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

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: 1.5rem;
}

.card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

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

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.card-tag {
  display: inline-block;
  background: rgba(10,37,64,0.08);
  color: var(--color-primary);
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  font-size: 0.75rem;
  margin-right: 0.5rem;
}

/* 按钮 */
.btn {
  display: inline-block;
  padding: 0.7rem 1.8rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
}

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

.btn-primary:hover {
  background: #0d3057;
  color: #fff;
}

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

.btn-secondary:hover {
  background: #d4b78f;
  color: var(--color-primary);
}

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

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

/* 时间轴 */
.timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-secondary);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 1.5rem 2.5rem;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-item::before {
  content: '';
  position: absolute;
  top: 2rem;
  width: 16px;
  height: 16px;
  background: var(--color-secondary);
  border: 3px solid var(--color-primary);
  border-radius: 50%;
}

.timeline-item:nth-child(odd)::before {
  right: -8px;
}

.timeline-item:nth-child(even)::before {
  left: -8px;
}

.timeline-content {
  background: var(--color-card);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.timeline-date {
  font-size: 0.85rem;
  color: var(--color-secondary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* 统计数据区 */
.stats-section {
  background: var(--color-primary);
  color: #fff;
  padding: 3rem 0;
}

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

.stat-item .stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  font-family: var(--font-serif);
}

.stat-item .stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-top: 0.5rem;
}

/* 举报表单 */
.report-form {
  max-width: 700px;
  margin: 0 auto;
  background: var(--color-card);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

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

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(197,168,128,0.2);
}

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

/* 页脚 */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.7);
  padding: 3rem 0 1.5rem;
}

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

.footer-col h4 {
  color: var(--color-secondary);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-col p {
  font-size: 0.85rem;
  line-height: 1.8;
}

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

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col ul li a {
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
}

.footer-col ul li a:hover {
  color: var(--color-secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
}

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

/* 面包屑 */
.breadcrumb {
  padding: 1rem 0;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

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

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

.breadcrumb span {
  margin: 0 0.5rem;
}

/* 内页头部 */
.page-header {
  background: linear-gradient(135deg, var(--color-primary), #132f4c);
  color: #fff;
  padding: 4rem 0 3rem;
  text-align: center;
}

.page-header h1 {
  color: #fff;
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin: 0 auto;
}

/* 文章详情 */
.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.article-content h2 {
  margin-top: 2rem;
}

.article-content p {
  text-indent: 2em;
  margin-bottom: 1.2em;
}

.article-content blockquote {
  border-left: 4px solid var(--color-secondary);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background: rgba(197,168,128,0.08);
  font-style: italic;
}

.article-content .legal-notice {
  background: rgba(10,37,64,0.05);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  border-radius: var(--radius);
  margin: 2rem 0;
  font-size: 0.9rem;
}

/* 搜索页 */
.search-box {
  max-width: 600px;
  margin: 2rem auto;
  display: flex;
  gap: 0.5rem;
}

.search-box input {
  flex: 1;
  padding: 0.8rem 1.2rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
}

.search-box input:focus {
  border-color: var(--color-secondary);
  outline: none;
}

.search-results {
  max-width: 800px;
  margin: 2rem auto;
}

.search-result-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.search-result-item h3 a {
  color: var(--color-primary);
}

.search-result-item p {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

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

.error-page h1 {
  font-size: 6rem;
  color: var(--color-secondary);
}

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

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  padding: 1.2rem 1.5rem;
  background: var(--color-card);
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  background: rgba(10,37,64,0.03);
}

.faq-question::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--color-secondary);
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  content: '−';
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 1rem 1.5rem;
  max-height: 500px;
}

/* 打字机效果 */
.typewriter {
  overflow: hidden;
  border-right: 2px solid var(--color-secondary);
  white-space: nowrap;
  animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: var(--color-secondary); }
}

/* 淡入动画 */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 水印效果 */
.watermark-overlay {
  position: relative;
}

.watermark-overlay::after {
  content: '吃瓜大赛 官方公示';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-30deg);
  font-size: 2rem;
  color: rgba(10,37,64,0.06);
  pointer-events: none;
  white-space: nowrap;
  font-family: var(--font-serif);
}

/* 响应式 */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .timeline::before {
    left: 30px;
  }
  
  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding-left: 60px;
  }
  
  .timeline-item::before {
    left: 22px !important;
    right: auto !important;
  }
}

@media (max-width: 768px) {
  html { font-size: 14px; }
  
  .header-inner {
    flex-wrap: wrap;
  }
  
  .main-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    padding: 1rem 0;
  }
  
  .main-nav.active {
    display: flex;
  }
  
  .main-nav a {
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-section {
    min-height: 50vh;
  }
  
  .hero-content h1 {
    font-size: 1.6rem;
  }
  
  .section {
    padding: 2.5rem 0;
  }
}