/* Version2 公共样式 - 橙红渐变活力风格 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; line-height: 1.6; color: #333; background: #fff9f7; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* 头部 */
.header { background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); color: #fff; padding: 15px 0; position: fixed; top: 0; left: 0; right: 0; z-index: 1000; }
.header-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 0 20px; }
.logo { font-size: 26px; font-weight: 700; }
.logo span { color: #fff700; }
.nav { display: flex; gap: 25px; align-items: center; }
.nav a { color: #fff; font-size: 14px; padding: 8px 16px; border-radius: 20px; transition: all 0.3s; }
.nav a:hover { background: rgba(255,255,255,0.2); }
.nav-btn { background: #fff700 !important; color: #333 !important; font-weight: 600; }

/* 主内容区 */
.main-content { margin-top: 70px; }

/* 面包屑 */
.breadcrumb { padding: 20px 0; font-size: 14px; color: #666; }
.breadcrumb a { color: #ff6b6b; }
.breadcrumb a:hover { text-decoration: underline; }

/* 页面标题 */
.page-title { text-align: center; padding: 50px 0; }
.page-title h1 { font-size: 36px; color: #333; margin-bottom: 15px; }
.page-title p { font-size: 16px; color: #666; }

/* 卡片样式 */
.card { background: #fff; border-radius: 12px; padding: 30px; box-shadow: 0 4px 20px rgba(0,0,0,0.08); transition: all 0.3s; }
.card:hover { transform: translateY(-5px); box-shadow: 0 10px 40px rgba(255,107,107,0.2); }

/* 功能卡片网格 */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 25px; padding: 40px 0; }
.feature-card { background: #fff; border-radius: 12px; padding: 30px; box-shadow: 0 4px 20px rgba(0,0,0,0.08); transition: all 0.3s; cursor: pointer; }
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 10px 40px rgba(255,107,107,0.2); }
.feature-num { display: inline-flex; width: 40px; height: 40px; align-items: center; justify-content: center; background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); color: #fff; border-radius: 50%; font-weight: 700; margin-bottom: 15px; }
.feature-card h3 { font-size: 20px; color: #333; margin-bottom: 12px; }
.feature-card p { font-size: 14px; color: #666; line-height: 1.8; margin-bottom: 15px; }
.feature-link { display: inline-block; padding: 8px 20px; background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); color: #fff; border-radius: 20px; font-size: 13px; }

/* 介绍区块 */
.intro-box { background: #fff; border-radius: 12px; padding: 40px; margin-bottom: 30px; box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.intro-box h2 { font-size: 26px; color: #333; margin-bottom: 20px; padding-bottom: 15px; border-bottom: 3px solid #ff6b6b; }
.intro-box p { font-size: 15px; color: #666; line-height: 1.9; margin-bottom: 15px; }

/* 统计数据 */
.stats { grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 40px 0; }
.stat-item { text-align: center; padding: 30px; background: #fff; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.06); }
.stat-num { font-size: 42px; font-weight: 700; color: #ff6b6b; }
.stat-label { font-size: 14px; color: #666; margin-top: 8px; }

/* 页脚 */
.footer { background: #2d2d2d; color: #999; padding: 50px 20px; text-align: center; }
.footer-links { margin-bottom: 25px; }
.footer-links a { color: #999; margin: 0 12px; font-size: 14px; }
.footer-links a:hover { color: #ff6b6b; }
.footer p { font-size: 13px; margin-top: 15px; }

/* 按钮 */
.btn-primary { display: inline-block; padding: 14px 35px; background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); color: #fff; border-radius: 30px; font-size: 16px; font-weight: 600; transition: transform 0.3s; }
.btn-primary:hover { transform: scale(1.05); }
.btn-outline { display: inline-block; padding: 12px 33px; border: 2px solid #ff6b6b; color: #ff6b6b; border-radius: 30px; font-size: 16px; }

/* CTA区块 */
.cta-section { background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); padding: 60px 20px; text-align: center; color: #fff; margin-top: 50px; }
.cta-section h2 { font-size: 32px; margin-bottom: 15px; }
.cta-section p { font-size: 16px; opacity: 0.9; margin-bottom: 30px; }
.cta-section .btn-primary { background: #fff700; color: #333; }

/* 详情页专用样式 */
.steps-list { counter-reset: step; list-style: none; padding: 0; }
.steps-list li { counter-increment: step; position: relative; padding: 25px 30px 25px 80px; margin-bottom: 20px; background: #fff9f7; border-radius: 10px; border-left: 4px solid #ff6b6b; }
.steps-list li::before { content: counter(step); position: absolute; left: 20px; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700; }
.steps-list li strong { display: block; font-size: 18px; color: #333; margin-bottom: 8px; }

.advantage-list { list-style: none; padding: 0; }
.advantage-list li { padding: 20px; margin-bottom: 15px; background: linear-gradient(90deg, #fff5f3 0%, #ffffff 100%); border-left: 4px solid #ff6b6b; border-radius: 8px; font-size: 16px; color: #666; }
.advantage-list li::before { content: "✓"; color: #ff6b6b; font-weight: bold; font-size: 20px; margin-right: 12px; }
.advantage-list li strong { color: #333; }

.faq-item { margin-bottom: 25px; padding: 25px; background: #fff9f7; border-radius: 10px; }
.faq-item h3 { font-size: 18px; color: #333; margin-bottom: 12px; font-weight: 700; }
.faq-item p { font-size: 15px; color: #666; line-height: 1.8; margin: 0; }

.related-features { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; margin-top: 30px; }
.related-card { display: block; background: #fff; border: 2px solid #f0f0f0; border-radius: 10px; padding: 25px; text-align: center; transition: all 0.3s; }
.related-card:hover { border-color: #ff6b6b; transform: translateY(-3px); box-shadow: 0 5px 15px rgba(255,107,107,0.2); }
.related-card h3 { font-size: 18px; color: #333; margin-bottom: 10px; font-weight: 700; }
.related-card p { font-size: 14px; color: #999; margin: 0; }

.cta-btn { display: inline-block; background: #fff; color: #ff6b6b; padding: 15px 40px; border-radius: 30px; font-size: 18px; font-weight: 600; transition: all 0.3s; }
.cta-btn:hover { transform: scale(1.05); box-shadow: 0 5px 20px rgba(255,255,255,0.3); }

/* 响应式 */
@media (max-width: 768px) {
    .header-inner { flex-direction: column; gap: 15px; }
    .nav { flex-wrap: wrap; justify-content: center; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: 1fr; }
    .detail-hero h1 { font-size: 28px; }
    .hero-tags { gap: 8px; }
    .hero-tag { padding: 6px 12px; font-size: 12px; }
}

/* 导航下拉菜单 */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger { cursor: pointer; display: flex; align-items: center; gap: 4px; }
.nav-dropdown-trigger .bi { font-size: 12px; transition: transform 0.3s; }
.nav-dropdown:hover .nav-dropdown-trigger .bi { transform: rotate(180deg); }
.nav-dropdown-menu { position: absolute; top: 100%; left: 50%; transform: translateX(-50%); background: #fff; border-radius: 16px; box-shadow: 0 10px 40px rgba(0,0,0,0.15); padding: 20px; display: none; min-width: 600px; margin-top: 15px; z-index: 1001; }
.nav-dropdown:hover .nav-dropdown-menu { display: grid; grid-template-columns: repeat(5, 1fr); gap: 15px; }
.nav-dropdown-menu::before { content: ''; position: absolute; top: -10px; left: 50%; transform: translateX(-50%); border: 10px solid transparent; border-bottom-color: #fff; }
.dropdown-section h5 { font-size: 13px; color: #ff6b6b; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid #ffe0e0; white-space: nowrap; }
.dropdown-section a { display: block; font-size: 13px; color: #555 !important; padding: 6px 0 !important; white-space: nowrap; transition: color 0.3s; background: transparent !important; border-radius: 0 !important; }
.dropdown-section a:hover { color: #ff6b6b !important; background: transparent !important; }

@media (max-width: 992px) {
    .nav-dropdown-menu { min-width: 500px; }
    .nav-dropdown:hover .nav-dropdown-menu { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 576px) {
    .nav-dropdown-menu { min-width: 280px; left: auto; right: 0; transform: none; }
    .nav-dropdown:hover .nav-dropdown-menu { grid-template-columns: 1fr; }
    .nav-dropdown-menu::before { left: auto; right: 20px; transform: none; }
}