/* ============================================
   爱情岛 原创样式表
   品牌色系：品牌粉红 #FF2D55 | 深夜蓝黑 #1A1A2E | 暖金 #FFB800
   ============================================ */

/* === 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","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;background:#0D0D1A;color:#E0E0F0;line-height:1.7;overflow-x:hidden}
a{color:#FF6B8A;text-decoration:none;transition:color .3s}
a:hover{color:#FFB800}
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;color:#FFF}

/* === 容器 === */
.tx-container{max-width:1280px;margin:0 auto;padding:0 20px}
.tx-section{padding:60px 0}
.tx-section-title{font-size:2rem;text-align:center;margin-bottom:12px;position:relative}
.tx-section-title span{color:#FF2D55}
.tx-section-subtitle{text-align:center;color:#9898B8;font-size:1rem;margin-bottom:40px}

/* === 头部导航 === */
.tx-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(13,13,26,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,45,85,.15);transition:all .3s}
.tx-header .tx-container{display:flex;align-items:center;justify-content:space-between;height:68px}
.tx-logo{display:flex;align-items:center;gap:10px}
.tx-logo img{height:42px;width:auto}
.tx-logo-text{font-size:1.3rem;font-weight:800;background:linear-gradient(135deg,#FF2D55,#FF6B8A);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tx-nav{display:flex;align-items:center;gap:6px}
.tx-nav a{padding:8px 16px;border-radius:8px;font-size:.9rem;color:#C8C8E0;font-weight:500;transition:all .3s}
.tx-nav a:hover,.tx-nav a.active{color:#FF2D55;background:rgba(255,45,85,.1)}
.tx-mobile-toggle{display:none;background:none;border:none;color:#FFF;font-size:1.5rem;cursor:pointer}

/* === 搜索框 === */
.tx-search-bar{background:linear-gradient(135deg,rgba(255,45,85,.08),rgba(26,26,46,.6));padding:16px 0;border-bottom:1px solid rgba(255,45,85,.08)}
.tx-search-wrap{max-width:680px;margin:0 auto;position:relative;display:flex}
.tx-search-wrap input{flex:1;padding:12px 20px;border-radius:25px 0 0 25px;border:2px solid rgba(255,45,85,.3);background:rgba(26,26,46,.8);color:#FFF;font-size:.95rem;outline:none;transition:border-color .3s}
.tx-search-wrap input:focus{border-color:#FF2D55}
.tx-search-wrap input::placeholder{color:#7878A0}
.tx-search-btn{padding:12px 28px;background:linear-gradient(135deg,#FF2D55,#FF6B8A);color:#FFF;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;font-weight:600;transition:opacity .3s}
.tx-search-btn:hover{opacity:.85}

/* === Hero Banner === */
.tx-hero{position:relative;height:520px;overflow:hidden;margin-top:68px}
.tx-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55)}
.tx-hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,13,26,.3) 0%,rgba(13,13,26,.85) 100%)}
.tx-hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:0 20px}
.tx-hero h1{font-size:3rem;margin-bottom:16px;text-shadow:0 2px 20px rgba(255,45,85,.3)}
.tx-hero h1 span{background:linear-gradient(135deg,#FF2D55,#FFB800);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tx-hero p{font-size:1.2rem;color:#C8C8E0;max-width:640px;margin-bottom:28px}
.tx-hero-tags{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.tx-hero-tags span{padding:6px 18px;border-radius:20px;font-size:.85rem;background:rgba(255,45,85,.15);color:#FF6B8A;border:1px solid rgba(255,45,85,.3)}

/* === 视频卡片网格 === */
.tx-video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.tx-video-card{background:rgba(26,26,46,.6);border-radius:14px;overflow:hidden;border:1px solid rgba(255,45,85,.1);transition:all .4s;cursor:pointer;position:relative}
.tx-video-card:hover{transform:translateY(-6px);border-color:rgba(255,45,85,.4);box-shadow:0 12px 40px rgba(255,45,85,.15)}
.tx-video-thumb{position:relative;padding-top:66.67%;overflow:hidden}
.tx-video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tx-video-card:hover .tx-video-thumb img{transform:scale(1.08)}
.tx-video-play-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:52px;height:52px;background:rgba(255,45,85,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.tx-video-play-icon::after{content:"";border-left:18px solid #FFF;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.tx-video-card:hover .tx-video-play-icon{opacity:1}
.tx-video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#FFF;padding:2px 8px;border-radius:4px;font-size:.75rem}
.tx-video-info{padding:14px}
.tx-video-info h3{font-size:.95rem;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.tx-video-meta{display:flex;gap:14px;font-size:.8rem;color:#8888AA}
.tx-video-meta span{display:flex;align-items:center;gap:4px}
.tx-video-tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.tx-video-tags span{font-size:.7rem;padding:2px 8px;background:rgba(255,45,85,.1);color:#FF6B8A;border-radius:10px}

/* === 分类模块 === */
.tx-category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tx-category-card{background:linear-gradient(135deg,rgba(26,26,46,.8),rgba(26,26,46,.4));border:1px solid rgba(255,45,85,.12);border-radius:16px;padding:30px 24px;text-align:center;transition:all .4s}
.tx-category-card:hover{border-color:#FF2D55;transform:translateY(-4px);box-shadow:0 8px 30px rgba(255,45,85,.12)}
.tx-category-icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,#FF2D55,#FF6B8A);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.tx-category-card h3{font-size:1.1rem;margin-bottom:8px}
.tx-category-card p{font-size:.85rem;color:#9898B8;line-height:1.6}

/* === 专家展示 === */
.tx-expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tx-expert-card{background:rgba(26,26,46,.6);border:1px solid rgba(255,45,85,.1);border-radius:16px;overflow:hidden;transition:all .4s}
.tx-expert-card:hover{border-color:#FFB800;box-shadow:0 8px 30px rgba(255,184,0,.1)}
.tx-expert-photo{height:240px;overflow:hidden}
.tx-expert-photo img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tx-expert-card:hover .tx-expert-photo img{transform:scale(1.05)}
.tx-expert-info{padding:20px}
.tx-expert-info h3{font-size:1.1rem;margin-bottom:4px}
.tx-expert-info .role{color:#FF2D55;font-size:.85rem;margin-bottom:10px}
.tx-expert-info p{font-size:.85rem;color:#9898B8;margin-bottom:14px;line-height:1.6}
.tx-expert-btns{display:flex;gap:10px}
.tx-btn{display:inline-block;padding:8px 20px;border-radius:8px;font-size:.85rem;font-weight:600;transition:all .3s;text-align:center}
.tx-btn-primary{background:linear-gradient(135deg,#FF2D55,#FF6B8A);color:#FFF}
.tx-btn-primary:hover{opacity:.85;color:#FFF}
.tx-btn-outline{border:1px solid #FF2D55;color:#FF2D55}
.tx-btn-outline:hover{background:#FF2D55;color:#FFF}
.tx-btn-gold{background:linear-gradient(135deg,#FFB800,#FFC940);color:#1A1A2E}
.tx-btn-gold:hover{opacity:.85;color:#1A1A2E}

/* === 合作品牌 === */
.tx-partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.tx-partner-item{width:140px;height:60px;background:rgba(26,26,46,.6);border:1px solid rgba(255,45,85,.1);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:.9rem;color:#8888AA;font-weight:600;transition:all .3s}
.tx-partner-item:hover{border-color:#FFB800;color:#FFB800}

/* === 用户评论 === */
.tx-review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.tx-review-card{background:rgba(26,26,46,.6);border:1px solid rgba(255,45,85,.1);border-radius:14px;padding:24px;transition:all .3s}
.tx-review-card:hover{border-color:rgba(255,45,85,.3)}
.tx-review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tx-review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#FF2D55,#FFB800);display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:#FFF;font-weight:700}
.tx-review-name{font-weight:600;font-size:.95rem}
.tx-review-date{font-size:.8rem;color:#7878A0}
.tx-review-stars{color:#FFB800;font-size:.9rem;margin-bottom:8px}
.tx-review-text{font-size:.9rem;color:#B8B8CC;line-height:1.7}

/* === FAQ === */
.tx-faq-list{max-width:800px;margin:0 auto}
.tx-faq-item{background:rgba(26,26,46,.6);border:1px solid rgba(255,45,85,.1);border-radius:12px;margin-bottom:12px;overflow:hidden}
.tx-faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:.95rem;transition:all .3s}
.tx-faq-q:hover{color:#FF2D55}
.tx-faq-q::after{content:"+";font-size:1.3rem;color:#FF2D55;transition:transform .3s}
.tx-faq-item.active .tx-faq-q::after{transform:rotate(45deg)}
.tx-faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.tx-faq-item.active .tx-faq-a{max-height:300px;padding:0 24px 18px}
.tx-faq-a p{font-size:.9rem;color:#9898B8;line-height:1.7}

/* === 联系我们 === */
.tx-contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;align-items:start}
.tx-contact-info{background:rgba(26,26,46,.6);border:1px solid rgba(255,45,85,.1);border-radius:16px;padding:30px}
.tx-contact-info h3{font-size:1.2rem;margin-bottom:20px;color:#FF2D55}
.tx-contact-row{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px;font-size:.9rem;color:#B8B8CC}
.tx-contact-row strong{color:#FFF;min-width:80px}
.tx-qrcode-wrap{display:flex;gap:24px;justify-content:center}
.tx-qrcode-item{text-align:center}
.tx-qrcode-item img{width:160px;height:160px;border-radius:12px;margin-bottom:8px}
.tx-qrcode-item p{font-size:.85rem;color:#9898B8}

/* === 社交分享 === */
.tx-share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.tx-share-btn{padding:8px 20px;border-radius:20px;font-size:.85rem;font-weight:600;transition:all .3s;cursor:pointer;border:none}
.tx-share-wechat{background:#07C160;color:#FFF}
.tx-share-weibo{background:#E6162D;color:#FFF}
.tx-share-douyin{background:#161823;color:#FFF;border:1px solid #FE2C55}
.tx-share-bilibili{background:#00A1D6;color:#FFF}
.tx-share-btn:hover{opacity:.8;transform:scale(1.05)}

/* === 页脚 === */
.tx-footer{background:rgba(10,10,20,.95);border-top:1px solid rgba(255,45,85,.15);padding:40px 0 20px}
.tx-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.tx-footer-brand h3{font-size:1.3rem;margin-bottom:12px;background:linear-gradient(135deg,#FF2D55,#FF6B8A);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tx-footer-brand p{font-size:.85rem;color:#8888AA;line-height:1.7}
.tx-footer-col h4{font-size:1rem;margin-bottom:14px;color:#FF2D55}
.tx-footer-col a{display:block;font-size:.85rem;color:#8888AA;margin-bottom:8px;transition:color .3s}
.tx-footer-col a:hover{color:#FF6B8A}
.tx-footer-bottom{border-top:1px solid rgba(255,45,85,.1);padding-top:20px;text-align:center;font-size:.8rem;color:#6868A0}
.tx-footer-bottom a{color:#FF6B8A}
.tx-update-time{margin-top:6px;font-size:.78rem;color:#5858A0}

/* === 面包屑 === */
.tx-breadcrumb{padding:14px 0;font-size:.85rem;color:#8888AA}
.tx-breadcrumb a{color:#FF6B8A}
.tx-breadcrumb span{margin:0 8px;color:#5858A0}

/* === 内页通用 === */
.tx-page-hero{padding:100px 0 40px;text-align:center;background:linear-gradient(180deg,rgba(255,45,85,.06),transparent)}
.tx-page-hero h1{font-size:2.2rem;margin-bottom:10px}
.tx-page-hero p{color:#9898B8;font-size:1rem}

/* === 视频播放页 === */
.tx-player-wrap{position:relative;padding-top:56.25%;background:#000;border-radius:14px;overflow:hidden;margin-bottom:24px}
.tx-player-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:none}
.tx-video-detail{display:grid;grid-template-columns:2fr 1fr;gap:30px;padding-top:20px}
.tx-video-detail-main h1{font-size:1.6rem;margin-bottom:12px}
.tx-video-detail-meta{display:flex;gap:20px;font-size:.9rem;color:#8888AA;margin-bottom:16px}
.tx-video-detail-desc{font-size:.9rem;color:#B8B8CC;line-height:1.8;margin-bottom:20px}
.tx-sidebar-card{background:rgba(26,26,46,.6);border:1px solid rgba(255,45,85,.1);border-radius:14px;padding:20px;margin-bottom:20px}
.tx-sidebar-card h3{font-size:1rem;margin-bottom:14px;color:#FF2D55}
.tx-sidebar-video{display:flex;gap:10px;margin-bottom:12px;cursor:pointer;transition:opacity .3s}
.tx-sidebar-video:hover{opacity:.8}
.tx-sidebar-video img{width:120px;height:68px;object-fit:cover;border-radius:6px;flex-shrink:0}
.tx-sidebar-video-info h4{font-size:.8rem;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tx-sidebar-video-info p{font-size:.75rem;color:#8888AA;margin-top:4px}

/* === How-To指南 === */
.tx-howto-steps{max-width:700px;margin:0 auto}
.tx-howto-step{display:flex;gap:20px;margin-bottom:24px;align-items:flex-start}
.tx-howto-num{width:48px;height:48px;flex-shrink:0;background:linear-gradient(135deg,#FF2D55,#FF6B8A);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:800;color:#FFF}
.tx-howto-text h4{font-size:1rem;margin-bottom:4px}
.tx-howto-text p{font-size:.9rem;color:#9898B8}

/* === 响应式 === */
@media(max-width:1024px){
    .tx-video-grid{grid-template-columns:repeat(3,1fr)}
    .tx-footer-grid{grid-template-columns:1fr 1fr}
    .tx-expert-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
    .tx-nav{display:none;position:absolute;top:68px;left:0;width:100%;background:rgba(13,13,26,.98);flex-direction:column;padding:20px;gap:4px;border-bottom:1px solid rgba(255,45,85,.15)}
    .tx-nav.active{display:flex}
    .tx-mobile-toggle{display:block}
    .tx-hero{height:420px}
    .tx-hero h1{font-size:2rem}
    .tx-video-grid{grid-template-columns:repeat(2,1fr);gap:14px}
    .tx-category-grid{grid-template-columns:repeat(2,1fr)}
    .tx-expert-grid{grid-template-columns:1fr}
    .tx-review-grid{grid-template-columns:1fr}
    .tx-contact-grid{grid-template-columns:1fr}
    .tx-video-detail{grid-template-columns:1fr}
    .tx-footer-grid{grid-template-columns:1fr}
    .tx-section{padding:40px 0}
    .tx-section-title{font-size:1.5rem}
}
@media(max-width:480px){
    .tx-video-grid{grid-template-columns:1fr}
    .tx-category-grid{grid-template-columns:1fr}
    .tx-hero{height:360px}
    .tx-hero h1{font-size:1.6rem}
}

/* === 懒加载 === */
img[data-src]{opacity:0;transition:opacity .5s}
img.loaded{opacity:1}

/* === 动画 === */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.tx-animate{animation:fadeInUp .6s ease forwards;opacity:0}
.tx-delay-1{animation-delay:.1s}
.tx-delay-2{animation-delay:.2s}
.tx-delay-3{animation-delay:.3s}
.tx-delay-4{animation-delay:.4s}