/* ============================================
   "每日大赛在线观看" — 独特视觉风格
   主题：清新杂志风 + 柔和渐变 + 水彩质感
   主色调：珊瑚粉 (#FF6B6B) + 深海蓝 (#2C3E50) + 薄荷绿 (#20B2AA)
   背景：米白 (#FFF8F0) 为主，点缀浅蓝渐变
   特点：圆润卡片、柔和阴影、装饰性波浪、大胆字体对比
   ============================================ */

/* 基础重置 */
*, *::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: #2C3E50;
  line-height: 1.6;
}

/* 核心布局 — 居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background: linear-gradient(135deg, #F0F8FF 0%, #FFF8F0 100%); }

/* 装饰性背景波浪（仅偶数section） */
.section:nth-child(even)::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  width: 100%;
  height: 20px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 20'%3E%3Cpath d='M0,10 Q150,0 300,10 T600,10 T900,10 T1200,10 L1200,20 L0,20 Z' fill='%23FFF8F0'/%3E%3C/svg%3E") repeat-x;
  background-size: 1200px 20px;
}

/* 导航 — 固定顶部，磨砂玻璃 */
.site-header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background: rgba(255, 248, 240, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(44, 62, 80, 0.08);
}
.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:#2C3E50;
  letter-spacing: -0.5px;
}
.logo-icon {
  width:38px; height:38px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:1.1rem;
  background: linear-gradient(135deg, #FF6B6B, #20B2AA);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a {
  text-decoration:none; font-size:0.95rem; font-weight:500;
  color: #2C3E50; transition: all 0.3s ease;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover {
  color: #FF6B6B;
  border-bottom-color: #FF6B6B;
}
.nav-cta {
  padding:8px 22px; border-radius:50px;
  color:#fff!important; font-weight:600;
  background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
  box-shadow: 0 4px 14px rgba(255, 107, 107, 0.35);
  border-bottom: none!important;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.45);
}
.menu-toggle { display:none; }

/* 首页Hero — 不对称布局，杂志风 */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  right: -10%;
  top: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 107, 107, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-content {
  max-width: 650px;
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  display:inline-block;
  font-size:0.8rem; font-weight:700;
  padding:6px 18px; border-radius:50px;
  margin-bottom:18px;
  background: #20B2AA;
  color: #fff;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: 3.2rem;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 800;
  background: linear-gradient(135deg, #2C3E50, #FF6B6B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.15rem;
  opacity: 0.7;
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-buttons { display:flex; gap:16px; }
.hero-image {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  z-index: 2;
  box-shadow: 0 20px 60px rgba(44, 62, 80, 0.12);
  transform: rotate(-2deg);
  transition: transform 0.4s ease;
}
.hero-image:hover {
  transform: rotate(0deg) scale(1.01);
}
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 — 圆润现代 */
.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: all 0.3s ease;
  font-size: 0.95rem;
}
.btn-primary {
  color:#fff;
  background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(255, 107, 107, 0.45);
}
.btn-outline {
  background:transparent;
  border: 2px solid #2C3E50;
  color: #2C3E50;
}
.btn-outline:hover {
  background: #2C3E50;
  color: #fff;
  transform: translateY(-3px);
}

/* 标签/标题 */
.section-label {
  display:inline-block;
  font-size:0.75rem; font-weight:700;
  letter-spacing:3px; margin-bottom:14px;
  color: #20B2AA;
  text-transform: uppercase;
}
.section-title {
  font-size: 2.4rem;
  margin-bottom: 16px;
  font-weight: 800;
  line-height: 1.2;
  color: #2C3E50;
}
.section-desc {
  max-width:600px; opacity:0.7; margin-bottom:44px;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* 卡片网格 — 水彩质感卡片 */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:28px;
}
.category-card {
  border-radius: 20px;
  padding: 32px 28px;
  background: #fff;
  border: 1px solid rgba(44, 62, 80, 0.06);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(44, 62, 80, 0.04);
}
.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #FF6B6B, #20B2AA);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(44, 62, 80, 0.1);
  border-color: transparent;
}
.category-card:hover::before {
  opacity: 1;
}
.card-icon {
  width:52px; height:52px; border-radius:16px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; font-size:1.5rem;
  background: linear-gradient(135deg, #F0F8FF, #FFF8F0);
  color: #FF6B6B;
}
.category-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  font-weight: 700;
}
.category-card p {
  opacity: 0.6;
  font-size: 0.9rem;
  margin-bottom: 16px;
  line-height: 1.5;
}
.card-link {
  font-weight:700; font-size:0.85rem; text-decoration:none;
  color: #20B2AA;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-link::after {
  content: '→';
  transition: transform 0.3s ease;
}
.card-link:hover::after {
  transform: translateX(4px);
}

/* 特性块 — 不对称分割 */
.feature-block {
  display:grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items:center;
}
.feature-image {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(44, 62, 80, 0.1);
  transform: perspective(800px) rotateY(-3deg);
  transition: transform 0.6s ease;
}
.feature-image:hover {
  transform: perspective(800px) rotateY(0deg);
}
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { }
.feature-list { list-style:none; margin-top: 20px; }
.feature-list li {
  padding:10px 0; display:flex; align-items:center; gap:12px;
  font-size: 1rem;
  border-bottom: 1px solid rgba(44, 62, 80, 0.06);
}
.feature-list li:last-child { border-bottom: none; }
.feature-list li::before {
  content:'✓';
  font-weight:700;
  color: #20B2AA;
  font-size: 1.2rem;
}

/* 数据条 — 带渐变背景 */
.stats-bar {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap: 20px;
  text-align:center;
}
.stat-item {
  padding: 32px 20px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid rgba(44, 62, 80, 0.06);
  box-shadow: 0 4px 20px rgba(44, 62, 80, 0.04);
  transition: all 0.3s ease;
}
.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(44, 62, 80, 0.08);
}
.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, #FF6B6B, #20B2AA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.stat-label {
  font-size:0.9rem; opacity:0.6; margin-top:8px;
  font-weight: 500;
}

/* 内容墙 — 杂志风格网格 */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap: 28px;
}
.content-wall-item {
  border-radius: 20px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(44, 62, 80, 0.06);
  transition: all 0.4s ease;
  box-shadow: 0 4px 20px rgba(44, 62, 80, 0.04);
}
.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(44, 62, 80, 0.1);
}
.content-wall-item img {
  width:100%; height:220px; object-fit:cover;
  transition: transform 0.5s ease;
}
.content-wall-item:hover img {
  transform: scale(1.03);
}
.content-wall-body { padding:24px; }
.content-wall-body h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  font-weight: 700;
}
.content-wall-body p {
  opacity: 0.6;
  font-size: 0.9rem;
  line-height: 1.5;
}

/* FAQ — 圆润手风琴 */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item {
  border: 1px solid rgba(44, 62, 80, 0.08);
  border-radius: 16px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor:pointer;
  background: #fff;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(44, 62, 80, 0.02);
}
.faq-item:hover {
  border-color: #20B2AA;
}
.faq-item .faq-question {
  padding:18px 24px;
  font-weight:600;
  display:flex;
  justify-content:space-between;
  align-items: center;
  font-size: 1rem;
  color: #2C3E50;
}
.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: #20B2AA;
  transition: transform 0.3s ease;
}
.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}
.faq-item .faq-answer {
  padding:0 24px 20px;
  display:none;
  opacity:0.7;
  line-height: 1.7;
}
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 珊瑚到薄荷渐变 */
.cta-banner {
  padding:64px 32px;
  text-align:center;
  border-radius: 24px;
  background: linear-gradient(135deg, #FF6B6B 0%, #20B2AA 100%);
  color:#fff;
  box-shadow: 0 20px 60px rgba(255, 107, 107, 0.3);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
}
.cta-banner h2 {
  color:#fff;
  font-size: 2.2rem;
  margin-bottom: 16px;
  font-weight: 800;
}
.cta-banner p {
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  font-size: 1.1rem;
}
.cta-banner .btn-primary {
  background:#fff;
  color: #FF6B6B;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* 页脚 — 深色但非黑色 */
.site-footer {
  padding:60px 0 32px;
  background: #2C3E50;
  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 .logo-icon { background: linear-gradient(135deg, #FF6B6B, #20B2AA); }
.footer-brand p { opacity: 0.6; margin-top: 12px; line-height: 1.6; }
.footer-col { }
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 16px;
  font-weight: 700;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 0.9rem;
}
.footer-col ul a:hover { color: #FF6B6B; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  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; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap: 40px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .main-nav { display:none; }
  .menu-toggle {
    display:flex;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #2C3E50;
    padding: 8px;
  }
  .main-nav.open {
    display:flex;
    flex-direction:column;
    position:absolute;
    top:68px;
    left:0;
    width:100%;
    background: rgba(255, 248, 240, 0.98);
    backdrop-filter: blur(12px);
    padding:24px;
    gap: 16px;
    box-shadow: 0 10px 40px rgba(44, 62, 80, 0.1);
  }
  .main-nav.open a { padding: 8px 0; }
  .hero h1 { font-size: 2.4rem; }
  .section-title { font-size: 1.8rem; }
  .hero::after { display: none; }
}
@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap: 32px; }
  .hero-buttons { flex-direction:column; }
  .hero h1 { font-size: 2rem; }
  .stat-number { font-size: 2rem; }
  .cta-banner { padding: 40px 20px; }
  .cta-banner h2 { font-size: 1.6rem; }
}