/* ===== 每日大赛城市达人同城挑战榜 - 全局样式 ===== */
:root {
  --primary: #2563EB;
  --secondary: #F97316;
  --bg: #EFF6FF;
  --card: #FFFFFF;
  --accent: #16A34A;
  --text: #1E293B;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,0.12);
  --font-title: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --transition: all 0.3s ease;
}

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

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

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

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

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

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

ul, ol {
  list-style: none;
}

/* ===== 通用容器 ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 60px 0;
}

.section-title {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: 16px;
}

.section-desc {
  text-align: center;
  color: #64748B;
  font-size: 1rem;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 顶部导航 ===== */
.site-header {
  background: var(--card);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.nav-menu {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-menu a {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

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

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

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

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

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

/* ===== Hero 首屏 ===== */
.hero {
  background: linear-gradient(135deg, #1E40AF 0%, #2563EB 50%, #3B82F6 100%);
  color: #fff;
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(249,115,22,0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  font-family: var(--font-title);
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-text .subtitle {
  font-size: 1.15rem;
  opacity: 0.9;
  margin-bottom: 24px;
  line-height: 1.7;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--secondary);
  color: #fff;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.hero-btn:hover {
  background: #EA580C;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(249,115,22,0.3);
}

.hero-map {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-map img {
  width: 100%;
  border-radius: var(--radius);
}

/* ===== 卡片组件 ===== */
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.15);
}

/* ===== 网格布局 ===== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* ===== 任务卡片 ===== */
.task-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--secondary);
  transition: var(--transition);
}

.task-card:hover {
  transform: translateY(-3px);
}

.task-card .task-location {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 8px;
}

.task-card .task-desc {
  color: #475569;
  margin-bottom: 12px;
  line-height: 1.7;
}

.task-card .task-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #94A3B8;
}

/* ===== 达人卡片 ===== */
.talent-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}

.talent-card:hover {
  transform: translateY(-4px);
}

.talent-card .talent-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 12px;
  object-fit: cover;
  border: 3px solid var(--primary);
}

.talent-card .talent-name {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.talent-card .talent-city {
  color: var(--secondary);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.talent-card .talent-badges {
  display: flex;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-primary {
  background: #DBEAFE;
  color: var(--primary);
}

.badge-secondary {
  background: #FFF7ED;
  color: var(--secondary);
}

.badge-accent {
  background: #DCFCE7;
  color: var(--accent);
}

/* ===== 排行榜 ===== */
.rank-list {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid #F1F5F9;
  transition: var(--transition);
}

.rank-item:hover {
  background: #F8FAFC;
}

.rank-item:last-child {
  border-bottom: none;
}

.rank-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  background: #F1F5F9;
  color: #64748B;
}

.rank-item:nth-child(1) .rank-number {
  background: linear-gradient(135deg, #F59E0B, #D97706);
  color: #fff;
}

.rank-item:nth-child(2) .rank-number {
  background: linear-gradient(135deg, #94A3B8, #64748B);
  color: #fff;
}

.rank-item:nth-child(3) .rank-number {
  background: linear-gradient(135deg, #D97706, #92400E);
  color: #fff;
}

.rank-info {
  flex: 1;
}

.rank-info .rank-name {
  font-weight: 600;
  margin-bottom: 2px;
}

.rank-info .rank-detail {
  font-size: 0.85rem;
  color: #94A3B8;
}

.rank-score {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--primary);
}

/* ===== 打卡作品墙 ===== */
.checkin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

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

.checkin-card:hover {
  transform: translateY(-4px);
}

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

.checkin-card .checkin-info {
  padding: 16px;
}

.checkin-card .checkin-location {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.checkin-card .checkin-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.checkin-card .checkin-time {
  font-size: 0.8rem;
  color: #94A3B8;
}

/* ===== 城市切换 ===== */
.city-tabs {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 32px;
}

.city-tab {
  padding: 10px 20px;
  border-radius: 24px;
  background: var(--card);
  color: var(--text);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.city-tab:hover,
.city-tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== 安全提醒 ===== */
.safety-banner {
  background: linear-gradient(135deg, #DCFCE7, #F0FDF4);
  border: 1px solid #BBF7D0;
  border-radius: var(--radius);
  padding: 24px 32px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.safety-banner .safety-icon {
  width: 48px;
  height: 48px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.safety-banner .safety-text h3 {
  font-weight: 700;
  margin-bottom: 8px;
  color: #166534;
}

.safety-banner .safety-text p {
  color: #15803D;
  line-height: 1.7;
}

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

.faq-item {
  background: var(--card);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  overflow: hidden;
}

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

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

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  transition: var(--transition);
}

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

.faq-answer {
  padding: 0 24px 20px;
  color: #475569;
  line-height: 1.8;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.9rem;
  color: #94A3B8;
}

.breadcrumb a {
  color: #64748B;
}

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

.breadcrumb span {
  margin: 0 8px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0F172A;
  color: #CBD5E1;
  padding: 60px 0 30px;
}

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

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

.footer-col a {
  display: block;
  color: #94A3B8;
  font-size: 0.9rem;
  margin-bottom: 10px;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #64748B;
}

.footer-bottom a {
  color: #94A3B8;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

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

.btn-primary:hover {
  background: #1D4ED8;
  color: #fff;
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background: #EA580C;
  color: #fff;
  transform: translateY(-2px);
}

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

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

/* ===== 页面标题区 ===== */
.page-header {
  background: linear-gradient(135deg, #1E40AF, #2563EB);
  color: #fff;
  padding: 60px 0 40px;
  text-align: center;
}

.page-header h1 {
  font-family: var(--font-title);
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 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 #E2E8F0;
  border-radius: var(--radius);
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
}

.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37,99,235,0.1);
}

.search-box button {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary);
  color: #fff;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== 内容区 ===== */
.content-area {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}

.content-area h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 32px 0 16px;
  color: var(--text);
}

.content-area h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--text);
}

.content-area p {
  margin-bottom: 16px;
  line-height: 1.8;
  color: #475569;
}

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

.content-area li {
  margin-bottom: 8px;
  line-height: 1.7;
  color: #475569;
  list-style: disc;
}

/* ===== 地图标记动画 ===== */
@keyframes mapPinBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.animate-bounce {
  animation: mapPinBounce 2s ease-in-out infinite;
}

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

.animate-blink {
  animation: blink 1.5s ease-in-out infinite;
}

/* ===== 倒计时 ===== */
.countdown {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.countdown-item {
  text-align: center;
}

.countdown-item .num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--card);
  padding: 8px 16px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.countdown-item .label {
  font-size: 0.8rem;
  color: #94A3B8;
  margin-top: 4px;
}

/* ===== 标签切换 ===== */
.tab-nav {
  display: flex;
  gap: 4px;
  background: #F1F5F9;
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 24px;
  overflow-x: auto;
}

.tab-btn {
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  border: none;
  background: transparent;
  color: var(--text);
}

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

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text h1 {
    font-size: 1.8rem;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow);
    gap: 16px;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .page-header h1 {
    font-size: 1.6rem;
  }

  .safety-banner {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .countdown .num {
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 40px 0;
  }

  .hero {
    padding: 50px 0 40px;
  }

  .card {
    padding: 16px;
  }
}