/**
 * 校花 影视传媒社区 - 原创样式表
 * tbgzf27.cn
 * 配色：樱花粉 #E8507A + 校园蓝 #3B82F6 + 深紫黑 #1A1028
 */

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB',sans-serif;background:#1A1028;color:#F1E8F5;line-height:1.7;overflow-x:hidden}
a{color:#E8507A;text-decoration:none;transition:color .25s}
a:hover{color:#F5A0B5}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}

/* ===== 容器 ===== */
.xh-container{max-width:1240px;margin:0 auto;padding:0 20px}

/* ===== 干扰标签隐藏 ===== */
.xh-seo-block{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;opacity:0;pointer-events:none}

/* ===== 头部导航 ===== */
.xh-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(26,16,40,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(232,80,122,.15);transition:box-shadow .3s}
.xh-header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;max-width:1240px;margin:0 auto;padding:0 20px}
.xh-logo img{height:50px;width:auto}
.xh-nav{display:flex;gap:6px;align-items:center}
.xh-nav-link{padding:8px 16px;border-radius:8px;font-size:15px;color:#A78BBE;font-weight:500;transition:all .25s}
.xh-nav-link:hover,.xh-nav-link.active{color:#E8507A;background:rgba(232,80,122,.1)}
.xh-menu-toggle{display:none;background:none;border:none;color:#E8507A;font-size:26px;cursor:pointer;padding:6px}

/* ===== 搜索框 ===== */
.xh-search-bar{background:rgba(35,21,53,.8);border-bottom:1px solid rgba(232,80,122,.1);padding:12px 0}
.xh-search-form{display:flex;max-width:560px;margin:0 auto;gap:0}
.xh-search-input{flex:1;padding:10px 18px;border:2px solid rgba(232,80,122,.3);border-right:none;border-radius:25px 0 0 25px;background:rgba(26,16,40,.8);color:#F1E8F5;font-size:14px;outline:none;transition:border-color .3s}
.xh-search-input:focus{border-color:#E8507A}
.xh-search-input::placeholder{color:#7C6A8E}
.xh-search-btn{padding:10px 24px;border:2px solid #E8507A;border-radius:0 25px 25px 0;background:linear-gradient(135deg,#E8507A,#C2185B);color:#fff;font-size:14px;cursor:pointer;transition:opacity .3s}
.xh-search-btn:hover{opacity:.85}

/* ===== Hero区域 ===== */
.xh-hero{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;margin-top:68px}
.xh-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.45)}
.xh-hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,16,40,.3) 0%,rgba(26,16,40,.85) 100%)}
.xh-hero-content{position:relative;z-index:2;text-align:center;max-width:780px;margin:0 auto;padding:60px 20px}
.xh-hero-content h1{font-size:42px;font-weight:800;margin-bottom:16px;background:linear-gradient(135deg,#E8507A,#F5A0B5,#3B82F6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.xh-hero-content p{font-size:17px;color:#C8B8D8;margin-bottom:28px;line-height:1.8}
.xh-hero-btn{display:inline-block;padding:14px 36px;background:linear-gradient(135deg,#E8507A,#C2185B);color:#fff;border-radius:30px;font-size:16px;font-weight:600;transition:transform .3s,box-shadow .3s}
.xh-hero-btn:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(232,80,122,.4);color:#fff}

/* ===== 面包屑 ===== */
.xh-breadcrumb{padding:16px 0;font-size:13px;color:#7C6A8E}
.xh-breadcrumb a{color:#A78BBE}
.xh-breadcrumb a:hover{color:#E8507A}
.xh-breadcrumb span{margin:0 8px}

/* ===== 标签筛选 ===== */
.xh-tags{display:flex;flex-wrap:wrap;gap:10px;padding:20px 0;justify-content:center}
.xh-tag{padding:8px 20px;border-radius:20px;font-size:13px;color:#A78BBE;background:rgba(35,21,53,.8);border:1px solid rgba(232,80,122,.2);cursor:pointer;transition:all .25s}
.xh-tag:hover,.xh-tag.active{color:#fff;background:linear-gradient(135deg,#E8507A,#C2185B);border-color:#E8507A}

/* ===== 通用区块 ===== */
.xh-section{padding:60px 0}
.xh-section-title{text-align:center;margin-bottom:45px}
.xh-section-title h2{font-size:30px;font-weight:700;margin-bottom:10px;color:#F1E8F5}
.xh-section-title h2 em{font-style:normal;color:#E8507A}
.xh-section-title h3{font-size:15px;color:#A78BBE;font-weight:400}

/* ===== 传媒视频卡片 ===== */
.xh-video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.xh-video-card{background:rgba(35,21,53,.7);border-radius:14px;overflow:hidden;border:1px solid rgba(232,80,122,.1);transition:transform .3s,box-shadow .3s;cursor:pointer}
.xh-video-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(232,80,122,.2)}
.xh-video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.xh-video-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.xh-video-card:hover .xh-video-thumb img{transform:scale(1.08)}
.xh-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:52px;height:52px;background:rgba(232,80,122,.85);border-radius:50%;opacity:0;transition:opacity .3s;display:flex;align-items:center;justify-content:center}
.xh-play-btn::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.xh-video-card:hover .xh-play-btn{opacity:1}
.xh-video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px}
.xh-video-badge{position:absolute;top:8px;left:8px;background:linear-gradient(135deg,#E8507A,#C2185B);color:#fff;padding:3px 10px;border-radius:4px;font-size:11px;font-weight:600}
.xh-video-info{padding:14px}
.xh-video-info h3{font-size:14px;font-weight:600;color:#F1E8F5;margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.xh-video-meta{display:flex;gap:14px;font-size:12px;color:#7C6A8E}

/* ===== 影视传媒/AI赋能/娱乐专区 网格 ===== */
.xh-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.xh-feature-card{background:linear-gradient(145deg,rgba(35,21,53,.8),rgba(26,16,40,.9));border:1px solid rgba(232,80,122,.12);border-radius:14px;padding:28px;transition:transform .3s,border-color .3s}
.xh-feature-card:hover{transform:translateY(-4px);border-color:rgba(232,80,122,.4)}
.xh-feature-card h3{font-size:17px;font-weight:600;margin-bottom:12px;color:#F1E8F5}
.xh-feature-card p{font-size:14px;color:#A78BBE;line-height:1.8}

/* ===== AI赋能 4列 ===== */
.xh-ai-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.xh-ai-card{background:linear-gradient(145deg,rgba(59,130,246,.08),rgba(35,21,53,.8));border:1px solid rgba(59,130,246,.15);border-radius:14px;padding:28px;transition:transform .3s}
.xh-ai-card:hover{transform:translateY(-4px);border-color:rgba(59,130,246,.4)}
.xh-ai-card h3{font-size:16px;font-weight:600;margin-bottom:10px;color:#F1E8F5}
.xh-ai-card p{font-size:14px;color:#A78BBE;line-height:1.8}

/* ===== 社区功能 ===== */
.xh-comm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.xh-comm-card{background:rgba(35,21,53,.7);border:1px solid rgba(245,158,11,.12);border-radius:14px;padding:26px;transition:transform .3s}
.xh-comm-card:hover{transform:translateY(-4px);border-color:rgba(245,158,11,.4)}
.xh-comm-card h3{font-size:16px;font-weight:600;margin-bottom:10px;color:#F1E8F5}
.xh-comm-card p{font-size:14px;color:#A78BBE;line-height:1.8}

/* ===== 专家展示 ===== */
.xh-expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.xh-expert-card{background:rgba(35,21,53,.7);border:1px solid rgba(232,80,122,.12);border-radius:16px;padding:30px;text-align:center;transition:transform .3s}
.xh-expert-card:hover{transform:translateY(-4px)}
.xh-expert-avatar{width:100px;height:100px;border-radius:50%;overflow:hidden;margin:0 auto 16px;border:3px solid #E8507A}
.xh-expert-avatar img{width:100%;height:100%;object-fit:cover}
.xh-expert-card h3{font-size:18px;font-weight:700;color:#F1E8F5;margin-bottom:4px}
.xh-expert-role{font-size:13px;color:#E8507A;margin-bottom:12px}
.xh-expert-card p{font-size:13px;color:#A78BBE;line-height:1.7}

/* ===== 合作品牌 ===== */
.xh-brand-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.xh-brand-item{background:rgba(35,21,53,.6);border:1px solid rgba(232,80,122,.1);border-radius:10px;padding:18px;text-align:center;font-size:14px;color:#A78BBE;transition:border-color .3s}
.xh-brand-item:hover{border-color:#E8507A;color:#E8507A}

/* ===== How-To步骤 ===== */
.xh-howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.xh-howto-step{background:rgba(35,21,53,.7);border:1px solid rgba(59,130,246,.15);border-radius:14px;padding:28px;position:relative;counter-increment:step}
.xh-howto-step::before{content:'Step ' counter(step);display:block;font-size:12px;color:#3B82F6;font-weight:700;margin-bottom:10px;text-transform:uppercase;letter-spacing:1px}
.xh-howto-step h3{font-size:16px;font-weight:600;margin-bottom:10px;color:#F1E8F5}
.xh-howto-step p{font-size:14px;color:#A78BBE;line-height:1.7}

/* ===== 用户评价 ===== */
.xh-review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.xh-review-card{background:rgba(35,21,53,.7);border:1px solid rgba(232,80,122,.1);border-radius:14px;padding:24px}
.xh-review-card .xh-review-stars{color:#F59E0B;font-size:14px;margin-bottom:10px}
.xh-review-card p{font-size:14px;color:#C8B8D8;line-height:1.7;margin-bottom:12px;font-style:italic}
.xh-review-card .xh-review-author{font-size:13px;color:#7C6A8E}

/* ===== FAQ ===== */
.xh-faq-list{max-width:800px;margin:0 auto}
.xh-faq-item{border:1px solid rgba(232,80,122,.12);border-radius:12px;margin-bottom:12px;overflow:hidden;background:rgba(35,21,53,.6)}
.xh-faq-question{padding:18px 24px;cursor:pointer;font-size:15px;font-weight:600;color:#F1E8F5;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.xh-faq-question:hover{background:rgba(232,80,122,.06)}
.xh-faq-question::after{content:'+';font-size:22px;color:#E8507A;transition:transform .3s}
.xh-faq-item.active .xh-faq-question::after{transform:rotate(45deg)}
.xh-faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.xh-faq-item.active .xh-faq-answer{max-height:300px;padding:0 24px 18px}
.xh-faq-answer p{font-size:14px;color:#A78BBE;line-height:1.8}

/* ===== 联系我们 ===== */
.xh-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.xh-contact-info{background:rgba(35,21,53,.7);border:1px solid rgba(232,80,122,.12);border-radius:14px;padding:30px}
.xh-contact-info h3{font-size:18px;font-weight:700;color:#F1E8F5;margin-bottom:18px}
.xh-contact-item{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid rgba(232,80,122,.06)}
.xh-contact-item strong{color:#A78BBE;font-size:14px}
.xh-contact-item span{color:#F1E8F5;font-size:14px}
.xh-contact-qr{display:flex;gap:20px}
.xh-contact-qr-item{text-align:center}
.xh-contact-qr-item img{width:120px;height:120px;border-radius:8px}
.xh-contact-qr-item p{font-size:12px;color:#7C6A8E;margin-top:6px}

/* ===== 社交分享 ===== */
.xh-share{text-align:center;padding:30px 0}
.xh-share-btns{display:flex;justify-content:center;gap:14px;margin-top:14px}
.xh-share-btn{display:inline-block;padding:10px 22px;border-radius:25px;font-size:13px;color:#fff;transition:opacity .3s}
.xh-share-btn:hover{opacity:.8;color:#fff}
.xh-share-btn.wechat{background:#07C160}
.xh-share-btn.weibo{background:#E6162D}
.xh-share-btn.douyin{background:#161823}
.xh-share-btn.bilibili{background:#00A1D6}

/* ===== 服务卡片 ===== */
.xh-service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.xh-service-card{background:rgba(35,21,53,.7);border:1px solid rgba(232,80,122,.12);border-radius:14px;padding:28px;text-align:center;transition:transform .3s}
.xh-service-card:hover{transform:translateY(-4px)}
.xh-service-icon{font-size:36px;margin-bottom:14px}
.xh-service-card h3{font-size:16px;font-weight:600;margin-bottom:10px;color:#F1E8F5}
.xh-service-card p{font-size:14px;color:#A78BBE;line-height:1.7}

/* ===== 页面Hero（内页） ===== */
.xh-page-hero{background:linear-gradient(135deg,rgba(232,80,122,.12),rgba(59,130,246,.08));padding:50px 20px;text-align:center;margin-top:68px;border-bottom:1px solid rgba(232,80,122,.1)}
.xh-page-hero h1{font-size:32px;font-weight:700;color:#F1E8F5;margin-bottom:10px}
.xh-page-hero h1 em{font-style:normal;color:#E8507A}
.xh-page-hero p{font-size:15px;color:#A78BBE}

/* ===== 视频弹窗 ===== */
.xh-modal{position:fixed;inset:0;z-index:2000;background:rgba(0,0,0,.8);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s}
.xh-modal.active{opacity:1;visibility:visible}
.xh-modal-box{background:#231535;border-radius:16px;width:90%;max-width:800px;overflow:hidden;position:relative}
.xh-modal-close{position:absolute;top:12px;right:16px;font-size:28px;color:#A78BBE;cursor:pointer;z-index:10;background:none;border:none;transition:color .3s}
.xh-modal-close:hover{color:#E8507A}
.xh-modal-video{aspect-ratio:16/9;background:#1A1028}

/* ===== 回到顶部 ===== */
.xh-back-top{position:fixed;bottom:30px;right:30px;width:46px;height:46px;background:linear-gradient(135deg,#E8507A,#C2185B);color:#fff;border:none;border-radius:50%;font-size:20px;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s;z-index:999;display:flex;align-items:center;justify-content:center}
.xh-back-top.visible{opacity:1;visibility:visible}
.xh-back-top:hover{transform:translateY(-3px);box-shadow:0 6px 18px rgba(232,80,122,.4)}

/* ===== 页脚 ===== */
.xh-footer{background:rgba(15,8,25,.95);border-top:1px solid rgba(232,80,122,.1);padding:50px 0 0}
.xh-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.xh-footer-col h4{font-size:16px;font-weight:700;color:#F1E8F5;margin-bottom:16px}
.xh-footer-col p{font-size:13px;color:#7C6A8E;line-height:1.7;margin-bottom:8px}
.xh-footer-col a{display:block;font-size:13px;color:#A78BBE;padding:4px 0;transition:color .25s}
.xh-footer-col a:hover{color:#E8507A}
.xh-footer-bottom{border-top:1px solid rgba(232,80,122,.08);padding:20px 0;text-align:center;font-size:13px;color:#7C6A8E}

/* ===== 响应式 ===== */
@media(max-width:1024px){
    .xh-video-grid{grid-template-columns:repeat(3,1fr)}
    .xh-ai-grid{grid-template-columns:repeat(2,1fr)}
    .xh-howto-steps{grid-template-columns:repeat(2,1fr)}
    .xh-brand-wall{grid-template-columns:repeat(4,1fr)}
    .xh-footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
    .xh-menu-toggle{display:block}
    .xh-nav{position:fixed;top:68px;left:0;width:100%;background:rgba(26,16,40,.98);flex-direction:column;padding:20px;gap:4px;transform:translateY(-120%);transition:transform .35s;border-bottom:1px solid rgba(232,80,122,.15)}
    .xh-nav.active{transform:translateY(0)}
    .xh-nav-link{width:100%;text-align:center;padding:12px}
    .xh-hero-content h1{font-size:28px}
    .xh-video-grid{grid-template-columns:repeat(2,1fr)}
    .xh-feature-grid,.xh-comm-grid,.xh-review-grid,.xh-expert-grid,.xh-service-grid{grid-template-columns:1fr}
    .xh-ai-grid{grid-template-columns:1fr}
    .xh-howto-steps{grid-template-columns:1fr}
    .xh-brand-wall{grid-template-columns:repeat(3,1fr)}
    .xh-contact-grid{grid-template-columns:1fr}
    .xh-footer-grid{grid-template-columns:1fr}
    .xh-section-title h2{font-size:24px}
}
@media(max-width:480px){
    .xh-video-grid{grid-template-columns:1fr}
    .xh-brand-wall{grid-template-columns:repeat(2,1fr)}
}