/* ============================================
   熟女人妻 官方网站 - 原创样式表
   品牌色系：活力橙 #FF6B35 / 深夜蓝 #1A1A2E / 玫瑰红 #E94560
   ============================================ */

/* === 基础重置 === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:#0F0F23;color:#EAEAEA;line-height:1.7;overflow-x:hidden}
a{color:#FF6B35;text-decoration:none;transition:color .3s}
a:hover{color:#E94560}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}

/* === 容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#FF6B35;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#FF6B35,#E94560);margin:10px auto 0}
.section-title p{color:#9A9AB0;font-size:1rem}

/* === 顶部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(15,15,35,.95);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,107,53,.15);transition:all .3s}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:70px}
.site-logo{display:flex;align-items:center;gap:10px}
.site-logo img{width:40px;height:40px;border-radius:8px}
.site-logo span{font-size:1.3rem;font-weight:700;color:#FF6B35;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:5px}
.main-nav a{padding:8px 14px;border-radius:6px;font-size:.9rem;color:#EAEAEA;transition:all .3s;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{background:rgba(255,107,53,.15);color:#FF6B35}
.nav-toggle{display:none;background:none;border:none;color:#FF6B35;font-size:1.5rem;cursor:pointer}

/* === 搜索框 === */
.search-bar{background:rgba(22,33,62,.8);padding:12px 0;border-bottom:1px solid rgba(255,107,53,.1)}
.search-bar .container{display:flex;justify-content:center}
.search-wrap{position:relative;width:100%;max-width:560px}
.search-wrap input{width:100%;padding:10px 45px 10px 18px;border:1px solid rgba(255,107,53,.3);border-radius:25px;background:rgba(15,15,35,.8);color:#EAEAEA;font-size:.95rem;outline:none;transition:border-color .3s}
.search-wrap input:focus{border-color:#FF6B35}
.search-wrap input::placeholder{color:#6A6A80}
.search-wrap button{position:absolute;right:5px;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,#FF6B35,#E94560);border:none;color:#fff;width:35px;height:35px;border-radius:50%;cursor:pointer;font-size:1rem;display:flex;align-items:center;justify-content:center}

/* === Banner === */
.hero-banner{position:relative;margin-top:70px;height:520px;overflow:hidden}
.hero-banner .banner-bg{width:100%;height:100%;object-fit:cover;filter:brightness(.6)}
.hero-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;background:linear-gradient(180deg,rgba(15,15,35,.3) 0%,rgba(15,15,35,.8) 100%)}
.hero-overlay h1{font-size:2.8rem;color:#fff;margin-bottom:15px;text-shadow:0 2px 20px rgba(255,107,53,.4)}
.hero-overlay h1 em{font-style:normal;color:#FF6B35}
.hero-overlay p{font-size:1.15rem;color:#D0D0E0;max-width:700px;margin-bottom:25px}
.hero-btns{display:flex;gap:15px;flex-wrap:wrap;justify-content:center}
.btn-primary{display:inline-block;padding:12px 30px;background:linear-gradient(135deg,#FF6B35,#E94560);color:#fff;border-radius:30px;font-weight:600;transition:transform .3s,box-shadow .3s;border:none;cursor:pointer;font-size:1rem}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(255,107,53,.4);color:#fff}
.btn-outline{display:inline-block;padding:12px 30px;border:2px solid #FF6B35;color:#FF6B35;border-radius:30px;font-weight:600;transition:all .3s;font-size:1rem}
.btn-outline:hover{background:#FF6B35;color:#fff}

/* === 通用Section === */
.section{padding:70px 0}
.section-alt{background:rgba(22,33,62,.4)}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#16213E;transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-5px);box-shadow:0 12px 30px rgba(255,107,53,.2)}
.video-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.video-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .thumb img{transform:scale(1.05)}
.video-card .play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.4);opacity:0;transition:opacity .3s}
.video-card:hover .play-btn{opacity:1}
.play-btn span{width:55px;height:55px;background:rgba(255,107,53,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;color:#fff;box-shadow:0 4px 15px rgba(255,107,53,.5)}
.video-card .card-body{padding:15px}
.video-card .card-body h3{font-size:1rem;color:#EAEAEA;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;gap:15px;font-size:.8rem;color:#9A9AB0}
.video-card .card-meta span{display:flex;align-items:center;gap:4px}
.video-card .tag{position:absolute;top:10px;left:10px;background:rgba(233,69,96,.85);color:#fff;padding:3px 10px;border-radius:4px;font-size:.75rem;font-weight:600;z-index:2}

/* === 模块卡片 === */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:25px}
.module-card{background:linear-gradient(145deg,#16213E,#1A1A2E);border:1px solid rgba(255,107,53,.1);border-radius:12px;padding:30px 25px;text-align:center;transition:all .3s}
.module-card:hover{border-color:#FF6B35;transform:translateY(-3px);box-shadow:0 8px 25px rgba(255,107,53,.15)}
.module-card .icon{font-size:2.5rem;margin-bottom:15px}
.module-card h3{font-size:1.1rem;color:#FF6B35;margin-bottom:10px}
.module-card p{font-size:.9rem;color:#9A9AB0;line-height:1.6}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.expert-card{background:#16213E;border-radius:12px;overflow:hidden;text-align:center;transition:transform .3s}
.expert-card:hover{transform:translateY(-5px)}
.expert-card .avatar{width:120px;height:120px;border-radius:50%;margin:25px auto 15px;border:3px solid #FF6B35;overflow:hidden}
.expert-card .avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h3{font-size:1.1rem;color:#EAEAEA;margin-bottom:5px}
.expert-card .role{color:#FF6B35;font-size:.85rem;margin-bottom:10px}
.expert-card p{font-size:.85rem;color:#9A9AB0;padding:0 20px;margin-bottom:15px}
.expert-card .expert-links{display:flex;justify-content:center;gap:10px;padding-bottom:20px}
.expert-card .expert-links a{padding:6px 16px;border:1px solid #FF6B35;border-radius:20px;font-size:.8rem;color:#FF6B35;transition:all .3s}
.expert-card .expert-links a:hover{background:#FF6B35;color:#fff}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#16213E;border:1px solid rgba(255,107,53,.1);border-radius:10px;margin-bottom:12px;overflow:hidden}
.faq-item .faq-q{padding:18px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#EAEAEA;transition:color .3s}
.faq-item .faq-q:hover{color:#FF6B35}
.faq-item .faq-q .arrow{transition:transform .3s;color:#FF6B35;font-size:1.2rem}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s;color:#9A9AB0;font-size:.95rem;line-height:1.7}
.faq-item.open .faq-a{padding:0 20px 18px;max-height:500px}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.review-card{background:#16213E;border-radius:12px;padding:25px;position:relative}
.review-card .stars{color:#FF6B35;font-size:1rem;margin-bottom:10px}
.review-card p{font-size:.9rem;color:#D0D0E0;line-height:1.7;margin-bottom:15px;font-style:italic}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer .r-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#FF6B35,#E94560);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem}
.review-card .reviewer .r-info span{display:block}
.review-card .reviewer .r-info .r-name{color:#EAEAEA;font-weight:600;font-size:.9rem}
.review-card .reviewer .r-info .r-date{color:#6A6A80;font-size:.8rem}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:25px}
.contact-card{background:#16213E;border-radius:12px;padding:25px;text-align:center}
.contact-card .c-icon{font-size:2rem;color:#FF6B35;margin-bottom:10px}
.contact-card h4{color:#EAEAEA;margin-bottom:8px}
.contact-card p{color:#9A9AB0;font-size:.9rem}

/* === 社区模块 === */
.community-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.community-item{background:linear-gradient(145deg,#16213E,#1A1A2E);border:1px solid rgba(255,107,53,.08);border-radius:12px;padding:25px;text-align:center;transition:all .3s}
.community-item:hover{border-color:#FF6B35;box-shadow:0 5px 20px rgba(255,107,53,.1)}
.community-item .c-emoji{font-size:2.5rem;margin-bottom:12px}
.community-item h4{color:#EAEAEA;margin-bottom:8px;font-size:1rem}
.community-item p{color:#9A9AB0;font-size:.85rem}

/* === 合作品牌墙 === */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.brand-wall .brand-item{background:rgba(22,33,62,.6);border:1px solid rgba(255,107,53,.1);border-radius:10px;padding:20px 30px;color:#9A9AB0;font-size:1rem;font-weight:600;transition:all .3s}
.brand-wall .brand-item:hover{border-color:#FF6B35;color:#FF6B35}

/* === How-To 指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:25px;margin-top:30px}
.howto-step{text-align:center;padding:25px 20px}
.howto-step .step-num{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,#FF6B35,#E94560);color:#fff;font-size:1.3rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 15px}
.howto-step h4{color:#EAEAEA;margin-bottom:8px}
.howto-step p{color:#9A9AB0;font-size:.9rem}

/* === 分享按钮 === */
.share-bar{display:flex;justify-content:center;gap:15px;flex-wrap:wrap;margin-top:20px}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:25px;font-size:.85rem;font-weight:600;transition:all .3s;border:1px solid rgba(255,107,53,.2);color:#EAEAEA}
.share-btn:hover{background:#FF6B35;color:#fff;border-color:#FF6B35}

/* === 页脚 === */
.site-footer{background:#0A0A1A;border-top:1px solid rgba(255,107,53,.1);padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{color:#FF6B35;margin-bottom:15px;font-size:1rem}
.footer-col p,.footer-col a{color:#9A9AB0;font-size:.9rem;display:block;margin-bottom:6px}
.footer-col a:hover{color:#FF6B35}
.footer-col .qr-img{width:120px;border-radius:8px;margin-top:10px}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(255,107,53,.08);color:#6A6A80;font-size:.85rem}
.footer-bottom a{color:#FF6B35}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.footer-logo img{width:35px;height:35px;border-radius:6px}
.footer-logo span{font-size:1.1rem;font-weight:700;color:#FF6B35}

/* === 面包屑 === */
.breadcrumb{padding:15px 0;font-size:.85rem;color:#6A6A80}
.breadcrumb a{color:#9A9AB0}
.breadcrumb a:hover{color:#FF6B35}
.breadcrumb span{margin:0 8px;color:#6A6A80}

/* === 内页Banner === */
.page-banner{margin-top:70px;height:280px;position:relative;overflow:hidden}
.page-banner img{width:100%;height:100%;object-fit:cover;filter:brightness(.4)}
.page-banner .overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.page-banner h1{font-size:2.2rem;color:#fff;text-shadow:0 2px 15px rgba(255,107,53,.3)}
.page-banner p{color:#D0D0E0;margin-top:10px;font-size:1rem}

/* === JSON-LD 隐藏 === */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* === 响应式 === */
@media(max-width:768px){
  .site-header .container{padding:0 15px}
  .main-nav{position:fixed;top:70px;left:0;width:100%;background:rgba(15,15,35,.98);flex-direction:column;padding:20px;gap:5px;transform:translateY(-120%);transition:transform .3s;border-bottom:1px solid rgba(255,107,53,.15)}
  .main-nav.open{transform:translateY(0)}
  .main-nav a{padding:12px 15px;width:100%;text-align:center}
  .nav-toggle{display:block}
  .hero-banner{height:380px}
  .hero-overlay h1{font-size:1.8rem}
  .hero-overlay p{font-size:.95rem}
  .section{padding:50px 0}
  .section-title h2{font-size:1.5rem}
  .video-grid,.module-grid,.expert-grid,.review-grid,.contact-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
}
@media(min-width:769px) and (max-width:1024px){
  .video-grid,.module-grid,.expert-grid{grid-template-columns:repeat(2,1fr)}
  .hero-overlay h1{font-size:2.2rem}
}

/* === 动画 === */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.animate-in{animation:fadeInUp .6s ease forwards}

/* === 懒加载占位 === */
.lazy{opacity:0;transition:opacity .5s}
.lazy.loaded{opacity:1}

/* === 标签云 === */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}
.tag-cloud a{padding:6px 16px;background:rgba(22,33,62,.8);border:1px solid rgba(255,107,53,.15);border-radius:20px;color:#9A9AB0;font-size:.85rem;transition:all .3s}
.tag-cloud a:hover{border-color:#FF6B35;color:#FF6B35;background:rgba(255,107,53,.1)}

/* === AI赋能模块 === */
.ai-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:25px}
.ai-card{background:linear-gradient(145deg,rgba(22,33,62,.8),rgba(26,26,46,.8));border:1px solid rgba(255,107,53,.1);border-radius:12px;padding:30px;display:flex;gap:20px;align-items:flex-start;transition:all .3s}
.ai-card:hover{border-color:#FF6B35;box-shadow:0 5px 20px rgba(255,107,53,.12)}
.ai-card .ai-icon{font-size:2rem;flex-shrink:0}
.ai-card h3{color:#FF6B35;font-size:1rem;margin-bottom:8px}
.ai-card p{color:#9A9AB0;font-size:.9rem}

/* === 数据统计条 === */
.stats-bar{display:flex;justify-content:center;gap:50px;flex-wrap:wrap;padding:40px 0;background:linear-gradient(135deg,rgba(255,107,53,.08),rgba(233,69,96,.08))}
.stat-item{text-align:center}
.stat-item .num{font-size:2.2rem;font-weight:700;color:#FF6B35}
.stat-item .label{color:#9A9AB0;font-size:.9rem;margin-top:5px}