/* ============================================
   gaygv · 彩虹视界 设计系统
   风格：柔光杂志 · 彩虹渐变 · 圆润卡片
   禁止深色背景 · 亮色基底
   ============================================ */

/* 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: #fefcf7; 
  color: #2d2a3e;
  line-height: 1.6;
}

/* 核心布局 — 必须居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section:nth-child(even) { 
  background: linear-gradient(135deg, #fff5f0 0%, #f0f4ff 100%);
}

/* 导航 — 固定顶部 */
.site-header { 
  position:fixed; top:0; left:0; width:100%; z-index:1000; 
  background: rgba(255,255,255,0.88); 
  backdrop-filter:blur(16px); 
  border-bottom: 1px solid rgba(255, 140, 200, 0.2);
  box-shadow: 0 2px 20px rgba(255, 100, 180, 0.06);
}
.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:1.25rem; text-decoration:none; 
  color: #2d2a3e;
  letter-spacing: -0.5px;
}
.logo-icon { 
  width:38px; height:38px; border-radius:30% 70% 70% 30% / 30% 30% 70% 70%; 
  background: linear-gradient(135deg, #ff9a9e, #fad0c4, #a18cd1); 
  display:flex; align-items:center; justify-content:center; 
  font-size:1.1rem; color: #fff;
  box-shadow: 0 4px 12px rgba(255, 154, 158, 0.3);
}
.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; 
  color: #4a4560; transition:0.2s; 
  position: relative;
  padding: 4px 0;
}
.main-nav a::after {
  content: '';
  position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
  background: linear-gradient(90deg, #ff9a9e, #a18cd1);
  transition: width 0.3s ease;
  border-radius: 2px;
}
.main-nav a:hover { color: #e05a8a; }
.main-nav a:hover::after { width: 100%; }
.nav-cta { 
  padding:8px 22px; border-radius:30px; 
  background: linear-gradient(135deg, #ff9a9e, #a18cd1);
  color:#fff!important; font-weight:600; 
  box-shadow: 0 4px 14px rgba(161, 140, 209, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover { 
  transform: translateY(-2px); 
  box-shadow: 0 8px 24px rgba(161, 140, 209, 0.45);
}
.nav-cta::after { display: none; }
.menu-toggle { display:none; }

/* 首页Hero */
.hero { 
  min-height:75vh; display:flex; align-items:center; 
  position: relative;
  background: radial-gradient(circle at 10% 20%, rgba(255, 200, 220, 0.15) 0%, transparent 50%);
  padding-top: 80px;
}
.hero-content { max-width:720px; }
.hero-eyebrow { 
  display:inline-block; font-size:0.8rem; font-weight:600; 
  padding:4px 18px; border-radius:30px; margin-bottom:16px; 
  background: linear-gradient(135deg, #ffe0ec, #e8d5ff);
  color: #8a4d6e;
  letter-spacing: 1px;
}
.hero h1 { 
  font-size:3rem; line-height:1.15; margin-bottom:20px; 
  background: linear-gradient(135deg, #2d2a3e, #8a4d6e, #a18cd1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  letter-spacing: -1px;
}
.hero p { 
  font-size:1.1rem; opacity:0.7; max-width:560px; margin-bottom:32px; 
  color: #5a5670;
}
.hero-buttons { display:flex; gap:14px; }
.hero-image { 
  border-radius:20px; overflow:hidden; 
  box-shadow: 0 20px 60px rgba(161, 140, 209, 0.15);
}
.hero-image img { width:100%; height:auto; display: block; }

/* 按钮 */
.btn { 
  display:inline-flex; align-items:center; gap:8px; 
  padding:12px 30px; border-radius:30px; font-weight:600; 
  cursor:pointer; border:none; text-decoration:none; transition:0.25s; 
  font-size: 0.95rem;
}
.btn-primary { 
  background: linear-gradient(135deg, #ff9a9e, #a18cd1);
  color:#fff; 
  box-shadow: 0 6px 20px rgba(161, 140, 209, 0.3);
}
.btn-primary:hover { 
  transform: translateY(-3px); 
  box-shadow: 0 10px 30px rgba(161, 140, 209, 0.4);
}
.btn-outline { 
  background:transparent; border:1.5px solid #d4c5e0; 
  color: #6a5a80;
}
.btn-outline:hover { 
  border-color: #a18cd1; background: rgba(161, 140, 209, 0.05);
  transform: translateY(-2px);
}

/* 标签/标题 */
.section-label { 
  display:inline-block; font-size:0.75rem; font-weight:600; 
  letter-spacing:3px; margin-bottom:12px; 
  color: #b88ac4; text-transform: uppercase;
}
.section-title { 
  font-size:2.2rem; margin-bottom:14px; 
  font-weight: 800; color: #2d2a3e;
  letter-spacing: -0.5px;
}
.section-desc { 
  max-width:600px; opacity:0.7; margin-bottom:40px; 
  color: #5a5670; font-size: 1.05rem;
}

/* 卡片网格 */
.cards-grid { 
  display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:28px; 
}
.category-card { 
  border-radius:20px; padding:32px 28px; 
  background: #ffffff;
  border: 1px solid rgba(255, 154, 158, 0.15);
  transition:0.3s; 
  box-shadow: 0 4px 16px rgba(161, 140, 209, 0.04);
}
.category-card:hover { 
  transform:translateY(-5px); 
  box-shadow:0 12px 36px rgba(161, 140, 209, 0.12);
  border-color: rgba(255, 154, 158, 0.3);
}
.card-icon { 
  width:52px; height:52px; border-radius:30% 70% 70% 30% / 30% 30% 70% 70%; 
  display:flex; align-items:center; justify-content:center; 
  margin-bottom:18px; font-size:1.4rem; 
  background: linear-gradient(135deg, #ffe0ec, #e8d5ff);
  color: #8a4d6e;
}
.card-link { 
  font-weight:600; font-size:0.85rem; text-decoration:none; 
  color: #a18cd1; transition: 0.2s;
  display: inline-flex; align-items: center; gap: 4px;
}
.card-link:hover { color: #ff9a9e; gap: 8px; }

/* 特性块 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.feature-image { 
  border-radius:20px; overflow:hidden; 
  box-shadow: 0 12px 40px rgba(161, 140, 209, 0.1);
}
.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-size: 1rem; color: #4a4560;
}
.feature-list li::before { 
  content:'✦'; font-weight:700; 
  background: linear-gradient(135deg, #ff9a9e, #a18cd1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.1rem;
}

/* 数据条 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { 
  padding:28px 16px; border-radius:20px; 
  background: #ffffff;
  border: 1px solid rgba(255, 154, 158, 0.12);
  box-shadow: 0 4px 12px rgba(161, 140, 209, 0.04);
}
.stat-number { 
  font-size:2.4rem; font-weight:800; 
  background: linear-gradient(135deg, #ff9a9e, #a18cd1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { 
  font-size:0.9rem; opacity:0.6; margin-top:6px; 
  color: #5a5670;
}

/* 内容墙 */
.content-wall { 
  display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; 
}
.content-wall-item { 
  border-radius:20px; overflow:hidden; 
  background: #ffffff;
  border: 1px solid rgba(255, 154, 158, 0.12);
  transition:0.3s; 
  box-shadow: 0 4px 12px rgba(161, 140, 209, 0.04);
}
.content-wall-item:hover { 
  transform:translateY(-5px); 
  box-shadow:0 12px 36px rgba(161, 140, 209, 0.12);
}
.content-wall-item img { 
  width:100%; height:200px; object-fit:cover; 
  border-bottom: 1px solid rgba(255, 154, 158, 0.08);
}
.content-wall-body { padding:20px 24px 24px; }
.content-wall-body h3 { 
  font-size: 1.1rem; margin-bottom: 6px; color: #2d2a3e;
}
.content-wall-body p { 
  font-size: 0.9rem; opacity: 0.7; color: #5a5670;
}

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { 
  border: 1px solid rgba(255, 154, 158, 0.15); 
  border-radius:16px; margin-bottom:10px; overflow:hidden; 
  cursor:pointer; background: #ffffff;
  transition: 0.2s;
}
.faq-item:hover { border-color: rgba(161, 140, 209, 0.3); }
.faq-item .faq-question { 
  padding:18px 24px; font-weight:600; 
  display:flex; justify-content:space-between; 
  color: #2d2a3e; font-size: 1rem;
}
.faq-item .faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: #a18cd1;
  transition: transform 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: #5a5670; line-height: 1.7;
}
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 */
.cta-banner { 
  padding:64px 24px; text-align:center; border-radius:24px; 
  background: linear-gradient(135deg, #ff9a9e, #a18cd1);
  color:#fff; 
  box-shadow: 0 16px 48px rgba(161, 140, 209, 0.2);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
  pointer-events: none;
}
.cta-banner h2 { 
  color:#fff; font-size: 2rem; margin-bottom: 12px;
  position: relative; z-index: 1;
}
.cta-banner p { 
  color: rgba(255,255,255,0.85); margin-bottom: 24px;
  position: relative; z-index: 1;
}
.cta-banner .btn-primary { 
  background:#fff; color: #8a4d6e; 
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  position: relative; z-index: 1;
}
.cta-banner .btn-primary:hover { 
  transform: translateY(-3px); 
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

/* 页脚 */
.site-footer { 
  padding:56px 0 28px; 
  background: #2d2a3e; 
  color: rgba(255,255,255,0.8);
}
.site-footer .container { }
.footer-grid { 
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; 
}
.footer-brand { }
.footer-brand .logo { color: #fff; }
.footer-brand p { opacity: 0.6; margin-top: 12px; font-size: 0.9rem; }
.footer-col { }
.footer-col h4 { 
  color: #fff; font-weight: 600; margin-bottom: 16px; 
  font-size: 1rem; 
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { 
  color: rgba(255,255,255,0.6); text-decoration: none; 
  transition: 0.2s; font-size: 0.9rem;
}
.footer-col a:hover { color: #ff9a9e; }
.footer-bottom { 
  border-top: 1px solid rgba(255,255,255,0.08); 
  margin-top:40px; padding-top:20px; text-align:center; 
  font-size:0.85rem; opacity: 0.5;
}

/* 工具类 */
.text-accent { 
  background: linear-gradient(135deg, #ff9a9e, #a18cd1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; color: #5a5670; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap: 32px; }
  .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: rgba(255,255,255,0.98); 
    padding:24px 20px; gap: 16px;
    border-bottom: 1px solid rgba(255, 154, 158, 0.2);
    backdrop-filter: blur(16px);
  }
  .hero h1 { font-size: 2.2rem; }
  .section-title { 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: 1.8rem; }
  .section-title { font-size: 1.5rem; }
  .stats-bar { gap: 16px; }
}