/* ============================================
   torrentkitty.com.cn - 章鱼搜索 · 磁力爬
   设计风格：清新海洋 · 流体渐变 · 有机形态
   ============================================ */

/* 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: #f0f7fc; color: #1a3a4a; }

/* 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: rgba(255,255,255,0.5); backdrop-filter: blur(4px); }

/* 导航 — 半透明水波纹 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background: rgba(240,247,252,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(42,157,143,0.15); }
.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:700; font-size:1.25rem; text-decoration:none; color: #0b525b; letter-spacing: 1px; }
.logo-icon { width:38px; height:38px; border-radius: 50%; background: linear-gradient(135deg, #2a9d8f, #264653); display:flex; align-items:center; justify-content:center; font-size:1.1rem; color: #fff; box-shadow: 0 4px 12px rgba(42,157,143,0.3); }
.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: #1a3a4a; transition:0.2s; position: relative; padding-bottom: 4px; }
.main-nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: #2a9d8f; transition: 0.3s; }
.main-nav a:hover { color: #2a9d8f; }
.main-nav a:hover::after { width: 100%; }
.nav-cta { padding:10px 24px; border-radius: 50px; color:#fff!important; background: linear-gradient(135deg, #2a9d8f, #264653); font-weight:600; box-shadow: 0 4px 14px rgba(42,157,143,0.25); }
.nav-cta::after { display: none!important; }
.menu-toggle { display:none; background: none; border: none; font-size: 1.6rem; color: #0b525b; cursor: pointer; }

/* 首页Hero — 有机波浪背景 */
.hero { min-height:75vh; display:flex; align-items:center; position: relative; overflow: hidden; background: linear-gradient(170deg, #e0f2f1 0%, #f0f7fc 40%, #ffffff 100%); }
.hero::before { content: ''; position: absolute; bottom: -10%; left: -10%; width: 120%; height: 60%; background: radial-gradient(ellipse at 30% 80%, rgba(42,157,143,0.12) 0%, transparent 70%); pointer-events: none; }
.hero::after { content: ''; position: absolute; top: 10%; right: -5%; width: 50%; height: 50%; background: radial-gradient(ellipse at 70% 20%, rgba(38,70,83,0.08) 0%, transparent 60%); pointer-events: none; }
.hero-content { max-width:720px; position: relative; z-index: 2; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:600; padding:6px 18px; border-radius: 50px; background: rgba(42,157,143,0.12); color: #2a9d8f; letter-spacing: 1px; margin-bottom:16px; backdrop-filter: blur(4px); }
.hero h1 { font-size:3rem; line-height:1.15; margin-bottom:20px; color: #0b525b; font-weight: 800; letter-spacing: -0.5px; }
.hero h1 span { background: linear-gradient(135deg, #2a9d8f, #264653); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size:1.1rem; opacity:0.7; max-width:560px; margin-bottom:32px; line-height: 1.7; color: #2d4a5a; }
.hero-buttons { display:flex; gap:14px; }
.hero-image { border-radius: 20px; overflow:hidden; box-shadow: 0 20px 40px -12px rgba(42,157,143,0.2); position: relative; }
.hero-image img { width:100%; height:auto; display: block; }

/* 按钮 — 圆润海洋感 */
.btn { display:inline-flex; align-items:center; gap:8px; padding:14px 32px; border-radius: 50px; font-weight:600; cursor:pointer; border:none; text-decoration:none; transition:0.3s; font-size: 0.95rem; }
.btn-primary { color:#fff; background: linear-gradient(135deg, #2a9d8f, #1b6b62); box-shadow: 0 4px 16px rgba(42,157,143,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(42,157,143,0.4); }
.btn-outline { background:transparent; border:1.5px solid #2a9d8f; color: #2a9d8f; }
.btn-outline:hover { background: rgba(42,157,143,0.08); transform: translateY(-2px); }

/* 标签/标题 */
.section-label { display:inline-block; font-size:0.8rem; font-weight:600; letter-spacing:2px; margin-bottom:12px; color: #2a9d8f; text-transform: uppercase; }
.section-title { font-size:2.2rem; margin-bottom:14px; color: #0b525b; font-weight: 700; letter-spacing: -0.3px; }
.section-desc { max-width:600px; opacity:0.7; margin-bottom:40px; color: #2d4a5a; font-size: 1.05rem; line-height: 1.6; }

/* 卡片网格 — 磨砂玻璃卡片 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:28px; }
.category-card { border-radius: 20px; padding:32px; background: rgba(255,255,255,0.7); backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,0.6); box-shadow: 0 8px 32px rgba(42,157,143,0.08); transition:0.3s; }
.category-card:hover { transform:translateY(-6px); box-shadow: 0 16px 48px rgba(42,157,143,0.15); border-color: rgba(42,157,143,0.2); }
.card-icon { width:52px; height:52px; border-radius: 16px; background: linear-gradient(135deg, #e0f2f1, #ffffff); display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1.4rem; color: #2a9d8f; box-shadow: 0 4px 12px rgba(42,157,143,0.1); }
.card-link { font-weight:600; font-size:0.85rem; text-decoration:none; color: #2a9d8f; display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; }
.card-link::after { content: '→'; transition: 0.2s; }
.card-link:hover::after { transform: translateX(4px); }

/* 特性块 — 左右交错 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-image { border-radius: 20px; overflow:hidden; box-shadow: 0 20px 40px -12px rgba(42,157,143,0.15); }
.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: #1a3a4a; }
.feature-list li::before { content:'✓'; font-weight:700; color: #2a9d8f; font-size: 1.1rem; }

/* 数据条 — 波浪数字 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:28px 16px; border-radius: 20px; background: rgba(255,255,255,0.6); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.5); }
.stat-number { font-size:2.6rem; font-weight:800; background: linear-gradient(135deg, #2a9d8f, #264653); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; }
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:8px; color: #2d4a5a; }

/* 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: rgba(255,255,255,0.7); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.5); transition:0.3s; box-shadow: 0 4px 16px rgba(42,157,143,0.06); }
.content-wall-item:hover { transform:translateY(-6px); box-shadow: 0 16px 48px rgba(42,157,143,0.12); }
.content-wall-item img { width:100%; height:200px; object-fit:cover; }
.content-wall-body { padding:24px; }
.content-wall-body h4 { color: #0b525b; margin-bottom: 8px; }
.content-wall-body p { color: #2d4a5a; opacity: 0.7; font-size: 0.9rem; }

/* FAQ — 海洋折叠 */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { background: rgba(255,255,255,0.6); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.5); border-radius: 16px; margin-bottom:10px; overflow:hidden; cursor:pointer; transition: 0.2s; }
.faq-item:hover { border-color: rgba(42,157,143,0.2); }
.faq-item .faq-question { padding:18px 24px; font-weight:600; display:flex; justify-content:space-between; color: #0b525b; font-size: 1rem; }
.faq-item .faq-question::after { content: '+'; font-size: 1.3rem; color: #2a9d8f; transition: 0.3s; }
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-item .faq-answer { padding:0 24px 20px; display:none; opacity:0.7; color: #2d4a5a; line-height: 1.6; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 深海洋流 */
.cta-banner { padding:64px 24px; text-align:center; border-radius: 24px; background: linear-gradient(135deg, #2a9d8f, #1b6b62, #264653); color:#fff; box-shadow: 0 20px 48px rgba(42,157,143,0.3); position: relative; overflow: hidden; }
.cta-banner::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle at 30% 40%, rgba(255,255,255,0.08) 0%, transparent 60%); pointer-events: none; }
.cta-banner h2 { color:#fff; font-size: 2rem; margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.8); margin-bottom: 28px; }
.cta-banner .btn-primary { background:#fff; color: #2a9d8f; box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
.cta-banner .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }

/* 页脚 */
.site-footer { padding:56px 0 28px; background: linear-gradient(180deg, #e0f2f1, #f0f7fc); border-top: 1px solid rgba(42,157,143,0.1); }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand { }
.footer-brand p { opacity: 0.7; color: #2d4a5a; line-height: 1.6; }
.footer-col h4 { color: #0b525b; margin-bottom: 16px; font-size: 1rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { text-decoration: none; color: #2d4a5a; opacity: 0.7; transition: 0.2s; }
.footer-col a:hover { opacity: 1; color: #2a9d8f; }
.footer-bottom { border-top: 1px solid rgba(42,157,143,0.1); margin-top:40px; padding-top:24px; text-align:center; font-size:0.85rem; color: #2d4a5a; opacity: 0.6; }

/* 工具类 */
.text-accent { color: #2a9d8f; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; color: #2d4a5a; line-height: 1.6; }
.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; align-items: center; justify-content: center; }
  .main-nav.open { display:flex; flex-direction:column; position:absolute; top:68px; left:0; width:100%; background: rgba(240,247,252,0.98); backdrop-filter: blur(12px); padding:24px; border-bottom: 1px solid rgba(42,157,143,0.1); gap: 16px; }
  .hero h1 { font-size: 2.2rem; }
}
@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: 1.6rem; }
}