/* 赏金大对决 - 独特视觉系统 */
/* 风格：解构拼贴 × 柔和渐变 × 动态斜切 */
/* 配色：珊瑚粉 (#FF6B6B) + 薄荷绿 (#4ECDC4) + 奶油白 (#FFF8F0) */

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

body { 
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; 
  overflow-x: hidden; 
  background: #FFF8F0; 
  color: #2D3436; 
  line-height: 1.6;
}

/* 核心布局 */
.container { 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 24px; 
}

.section { 
  padding: 80px 0; 
  position: relative;
}

.section:nth-child(even) { 
  background: linear-gradient(135deg, #FFF0E6 0%, #FFF8F0 100%);
}

/* 导航 */
.site-header { 
  position: fixed; 
  top: 0; 
  left: 0; 
  width: 100%; 
  z-index: 1000; 
  background: rgba(255, 248, 240, 0.92); 
  backdrop-filter: blur(12px); 
  border-bottom: 2px solid #FF6B6B20;
}

.header-inner { 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  height: 68px; 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 24px; 
}

.logo { 
  display: flex; 
  align-items: center; 
  gap: 10px; 
  font-weight: 800; 
  font-size: 1.3rem; 
  text-decoration: none; 
  color: #FF6B6B; 
  letter-spacing: 1px;
  text-transform: uppercase;
}

.logo-icon { 
  width: 40px; 
  height: 40px; 
  border-radius: 12px; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  font-size: 1.2rem; 
  background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255,107,107,0.3);
  transform: rotate(-5deg);
}

.main-nav { 
  display: flex; 
  align-items: center; 
  gap: 28px; 
  list-style: none; 
}

.main-nav a { 
  text-decoration: none; 
  font-size: 0.9rem; 
  font-weight: 500; 
  transition: 0.3s; 
  color: #2D3436;
  position: relative;
  padding: 4px 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #FF6B6B, #4ECDC4);
  transition: 0.3s;
}

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

.nav-cta { 
  padding: 10px 24px; 
  border-radius: 50px; 
  color: #fff!important; 
  font-weight: 700; 
  background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
  box-shadow: 0 4px 16px rgba(255,107,107,0.3);
  transition: 0.3s;
}

.nav-cta:hover { 
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,107,107,0.4);
}

.nav-cta::after { display: none!important; }

.menu-toggle { 
  display: none; 
  width: 36px; 
  height: 36px; 
  align-items: center; 
  justify-content: center; 
  cursor: pointer;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: #FF6B6B;
}

/* 首页Hero */
.hero { 
  min-height: 75vh; 
  display: flex; 
  align-items: center; 
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #FFF8F0 0%, #FFE8E0 50%, #E0F7F5 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,107,107,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(78,205,196,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content { 
  max-width: 720px; 
  position: relative;
  z-index: 1;
}

.hero-eyebrow { 
  display: inline-block; 
  font-size: 0.8rem; 
  font-weight: 700; 
  padding: 6px 18px; 
  border-radius: 50px; 
  margin-bottom: 20px; 
  background: linear-gradient(135deg, #FF6B6B, #4ECDC4);
  color: #fff;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero h1 { 
  font-size: 3.2rem; 
  line-height: 1.15; 
  margin-bottom: 20px; 
  font-weight: 900;
  background: linear-gradient(135deg, #2D3436 0%, #FF6B6B 50%, #4ECDC4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p { 
  font-size: 1.15rem; 
  opacity: 0.7; 
  max-width: 560px; 
  margin-bottom: 36px; 
  color: #636E72;
}

.hero-buttons { 
  display: flex; 
  gap: 16px; 
}

.hero-image { 
  border-radius: 20px; 
  overflow: hidden; 
  transform: rotate(-2deg) scale(0.95);
  box-shadow: 0 20px 60px rgba(255,107,107,0.15);
  border: 4px solid #fff;
}

.hero-image img { 
  width: 100%; 
  height: auto; 
  display: block;
}

/* 按钮 */
.btn { 
  display: inline-flex; 
  align-items: center; 
  gap: 10px; 
  padding: 14px 32px; 
  border-radius: 50px; 
  font-weight: 700; 
  cursor: pointer; 
  border: none; 
  text-decoration: none; 
  transition: 0.3s; 
  font-size: 0.95rem;
}

.btn-primary { 
  color: #fff; 
  background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
  box-shadow: 0 4px 16px rgba(255,107,107,0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(255,107,107,0.4);
}

.btn-outline { 
  background: transparent; 
  border: 2px solid #FF6B6B; 
  color: #FF6B6B;
}

.btn-outline:hover {
  background: #FF6B6B;
  color: #fff;
}

/* 标签/标题 */
.section-label { 
  display: inline-block; 
  font-size: 0.75rem; 
  font-weight: 700; 
  letter-spacing: 3px; 
  margin-bottom: 12px; 
  color: #FF6B6B;
  text-transform: uppercase;
  padding: 4px 12px;
  border-left: 3px solid #4ECDC4;
}

.section-title { 
  font-size: 2.2rem; 
  margin-bottom: 14px; 
  font-weight: 800;
  line-height: 1.2;
}

.section-desc { 
  max-width: 600px; 
  opacity: 0.7; 
  margin-bottom: 40px; 
  color: #636E72;
}

/* 卡片网格 */
.cards-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); 
  gap: 28px; 
}

.category-card { 
  border-radius: 20px; 
  padding: 32px; 
  border: 2px solid #FFE8E0; 
  transition: 0.3s; 
  background: #fff;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #FF6B6B, #4ECDC4);
  transform: scaleX(0);
  transform-origin: left;
  transition: 0.3s;
}

.category-card:hover::before { transform: scaleX(1); }

.category-card:hover { 
  transform: translateY(-5px) rotate(-1deg); 
  box-shadow: 0 12px 32px rgba(255,107,107,0.1); 
  border-color: #FF6B6B40;
}

.card-icon { 
  width: 56px; 
  height: 56px; 
  border-radius: 16px; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  margin-bottom: 20px; 
  font-size: 1.5rem; 
  background: linear-gradient(135deg, #FFF0E6, #E0F7F5);
  color: #FF6B6B;
}

.card-link { 
  font-weight: 700; 
  font-size: 0.85rem; 
  text-decoration: none; 
  color: #FF6B6B;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-link:hover { gap: 10px; }

/* 特性块 */
.feature-block { 
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: 60px; 
  align-items: center; 
}

.feature-image { 
  border-radius: 20px; 
  overflow: hidden; 
  box-shadow: 0 16px 48px rgba(78,205,196,0.15);
  border: 3px solid #fff;
  transform: rotate(1deg);
}

.feature-image img { 
  width: 100%; 
  height: auto; 
  display: block;
}

.feature-text { }

.feature-list { 
  list-style: none; 
}

.feature-list li { 
  padding: 8px 0; 
  display: flex; 
  align-items: center; 
  gap: 10px; 
  font-weight: 500;
}

.feature-list li::before { 
  content: '✦'; 
  font-weight: 700; 
  color: #4ECDC4;
  font-size: 1.2rem;
}

/* 数据条 */
.stats-bar { 
  display: grid; 
  grid-template-columns: repeat(4, 1fr); 
  gap: 24px; 
  text-align: center; 
}

.stat-item { 
  padding: 32px 24px; 
  border-radius: 20px; 
  border: 2px solid #FFE8E0; 
  background: #fff;
  transition: 0.3s;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255,107,107,0.1);
  border-color: #4ECDC4;
}

.stat-number { 
  font-size: 2.6rem; 
  font-weight: 900; 
  background: linear-gradient(135deg, #FF6B6B, #4ECDC4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label { 
  font-size: 0.9rem; 
  opacity: 0.6; 
  margin-top: 8px; 
  color: #636E72;
}

/* 内容墙 */
.content-wall { 
  display: grid; 
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); 
  gap: 28px; 
}

.content-wall-item { 
  border-radius: 20px; 
  overflow: hidden; 
  border: 2px solid #FFE8E0; 
  transition: 0.3s; 
  background: #fff;
}

.content-wall-item:hover { 
  transform: translateY(-5px) rotate(0.5deg); 
  box-shadow: 0 12px 32px rgba(255,107,107,0.1); 
  border-color: #4ECDC4;
}

.content-wall-item img { 
  width: 100%; 
  height: 220px; 
  object-fit: cover; 
}

.content-wall-body { 
  padding: 24px; 
}

.content-wall-body h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.content-wall-body p {
  opacity: 0.7;
  font-size: 0.9rem;
}

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

.faq-item { 
  border: 2px solid #FFE8E0; 
  border-radius: 16px; 
  margin-bottom: 10px; 
  overflow: hidden; 
  cursor: pointer; 
  background: #fff;
  transition: 0.3s;
}

.faq-item:hover { border-color: #FF6B6B40; }

.faq-item .faq-question { 
  padding: 18px 24px; 
  font-weight: 700; 
  display: flex; 
  justify-content: space-between; 
  align-items: center;
  color: #2D3436;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: #FF6B6B;
  transition: 0.3s;
}

.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-item .faq-answer { 
  padding: 0 24px 18px; 
  display: none; 
  opacity: 0.7; 
  color: #636E72;
}

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

/* CTA横幅 */
.cta-banner { 
  padding: 64px 32px; 
  text-align: center; 
  border-radius: 24px; 
  background: linear-gradient(135deg, #FF6B6B, #FF8E8E, #4ECDC4);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-banner h2 { 
  color: #fff; 
  font-size: 2.4rem;
  margin-bottom: 16px;
  position: relative;
}

.cta-banner p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
  position: relative;
}

.cta-banner .btn-primary { 
  background: #fff; 
  color: #FF6B6B;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* 页脚 */
.site-footer { 
  padding: 60px 0 28px; 
  background: linear-gradient(135deg, #2D3436, #1a1e1f);
  color: rgba(255,255,255,0.8);
}

.site-footer .container { }

.footer-grid { 
  display: grid; 
  grid-template-columns: 2fr 1fr 1fr 1fr; 
  gap: 48px; 
}

.footer-brand { }
.footer-brand .logo { color: #fff; }
.footer-brand p { margin-top: 16px; opacity: 0.6; font-size: 0.9rem; }

.footer-col { }
.footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 1rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,0.6); text-decoration: none; transition: 0.2s; font-size: 0.9rem; }
.footer-col ul a:hover { color: #FF6B6B; }

.footer-bottom { 
  border-top: 1px solid rgba(255,255,255,0.1); 
  margin-top: 40px; 
  padding-top: 24px; 
  text-align: center; 
  font-size: 0.85rem; 
  opacity: 0.5;
}

/* 工具类 */
.text-accent { color: #FF6B6B; }
.text-center { text-align: center; }
.seo-description { 
  max-width: 600px; 
  margin: 0 auto 48px; 
  opacity: 0.7; 
  color: #636E72;
}
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .main-nav.open { 
    display: flex; 
    flex-direction: column; 
    position: absolute; 
    top: 68px; 
    left: 0; 
    width: 100%; 
    background: #FFF8F0; 
    padding: 24px; 
    border-bottom: 2px solid #FFE8E0;
  }
  .hero h1 { font-size: 2.4rem; }
  .section-title { font-size: 1.8rem; }
  .cta-banner h2 { font-size: 1.8rem; }
}

@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; }
  .hero h1 { font-size: 2rem; }
  .section-title { font-size: 1.6rem; }
  .stat-number { font-size: 2rem; }
}