/* ============================================
   芒果视频 - 火影忍者主题影视传媒网站
   域名: Lujckv.cn
   配色方案: 忍者橙(#FF6B35) + 深海蓝(#1B2838) + 樱花粉(#FFB7C5)
   ============================================ */

/* === 基础重置 === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;color:#2d2d2d;background:#0f1923;line-height:1.8}
a{text-decoration:none;color:inherit;transition:color .3s}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}

/* === 全局色彩变量 === */
:root{
  --ninja-orange:#FF6B35;
  --deep-navy:#1B2838;
  --sakura-pink:#FFB7C5;
  --chakra-blue:#00A8E8;
  --scroll-beige:#F5E6CC;
  --dark-bg:#0f1923;
  --card-bg:#1a2a3a;
  --text-light:#e8e8e8;
  --text-muted:#a0aab4;
  --gold-accent:#FFD700;
  --shadow-ninja:0 4px 20px rgba(255,107,53,0.15);
  --shadow-card:0 8px 32px rgba(0,0,0,0.3);
}

/* === 容器 === */
.container{max-width:1280px;margin:0 auto;padding:0 20px}
.section-padding{padding:70px 0}

/* === 顶部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(15,25,35,0.95);backdrop-filter:blur(12px);border-bottom:2px solid var(--ninja-orange);transition:all .3s}
.site-header.scrolled{background:rgba(15,25,35,0.98);box-shadow:0 2px 20px rgba(255,107,53,0.2)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.site-logo{display:flex;align-items:center;gap:12px}
.site-logo img{height:48px;width:auto}
.site-logo span{font-size:22px;font-weight:800;color:var(--ninja-orange);letter-spacing:1px;text-shadow:0 0 10px rgba(255,107,53,0.3)}
.main-nav{display:flex;gap:6px}
.main-nav a{padding:8px 16px;color:var(--text-light);font-size:15px;font-weight:500;border-radius:6px;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{color:var(--ninja-orange);background:rgba(255,107,53,0.1)}
.main-nav a::after{content:'';position:absolute;bottom:2px;left:50%;width:0;height:2px;background:var(--ninja-orange);transition:all .3s;transform:translateX(-50%)}
.main-nav a:hover::after,.main-nav a.active::after{width:60%}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.mobile-toggle span{width:26px;height:3px;background:var(--ninja-orange);border-radius:2px;transition:all .3s}

/* === Banner区域 === */
.hero-banner{position:relative;height:600px;overflow:hidden;margin-top:72px}
.hero-banner .banner-bg{width:100%;height:100%;object-fit:cover;filter:brightness(0.6)}
.hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(15,25,35,0.8) 0%,rgba(255,107,53,0.15) 100%);display:flex;align-items:center;justify-content:center}
.hero-content{text-align:center;max-width:800px;padding:0 30px}
.hero-content h1{font-size:48px;color:#fff;font-weight:900;margin-bottom:16px;text-shadow:0 4px 20px rgba(255,107,53,0.5);line-height:1.3}
.hero-content h1 em{font-style:normal;color:var(--ninja-orange)}
.hero-content p{font-size:18px;color:var(--scroll-beige);margin-bottom:30px;line-height:1.8}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:14px 36px;background:linear-gradient(135deg,var(--ninja-orange),#e55a2b);color:#fff;font-size:16px;font-weight:700;border-radius:50px;border:none;cursor:pointer;transition:all .3s;box-shadow:0 4px 15px rgba(255,107,53,0.4)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(255,107,53,0.5)}
.btn-outline{display:inline-block;padding:14px 36px;border:2px solid var(--sakura-pink);color:var(--sakura-pink);font-size:16px;font-weight:700;border-radius:50px;cursor:pointer;transition:all .3s;background:transparent}
.btn-outline:hover{background:var(--sakura-pink);color:var(--deep-navy);transform:translateY(-3px)}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:13px;color:var(--text-muted)}
.breadcrumb a{color:var(--chakra-blue)}
.breadcrumb a:hover{color:var(--ninja-orange)}
.breadcrumb span{margin:0 8px;color:var(--text-muted)}

/* === 区块标题 === */
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:36px;color:#fff;font-weight:800;margin-bottom:12px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:4px;background:linear-gradient(90deg,var(--ninja-orange),var(--sakura-pink));margin:12px auto 0;border-radius:2px}
.section-title p{font-size:16px;color:var(--text-muted);margin-top:10px}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:28px}
.video-card{background:var(--card-bg);border-radius:16px;overflow:hidden;transition:all .4s;border:1px solid rgba(255,107,53,0.1);position:relative}
.video-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-ninja);border-color:var(--ninja-orange)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#111}
.video-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0.8);width:64px;height:64px;background:rgba(255,107,53,0.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .4s;cursor:pointer;box-shadow:0 0 30px rgba(255,107,53,0.5)}
.play-btn::after{content:'';border-left:22px solid #fff;border-top:13px solid transparent;border-bottom:13px solid transparent;margin-left:4px}
.video-card:hover .play-btn{opacity:1;transform:translate(-50%,-50%) scale(1)}
.video-duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,0.8);color:#fff;padding:3px 8px;border-radius:4px;font-size:12px;font-weight:600}
.video-info{padding:18px 20px}
.video-info h3{font-size:17px;color:var(--text-light);font-weight:700;margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info .meta{display:flex;gap:16px;font-size:13px;color:var(--text-muted)}
.video-info .meta i{margin-right:4px}
.video-tag{display:inline-block;padding:3px 10px;background:rgba(255,107,53,0.15);color:var(--ninja-orange);font-size:12px;border-radius:12px;margin-top:8px}

/* === 影视传媒模块 === */
.media-section{background:linear-gradient(180deg,var(--dark-bg) 0%,#152030 100%)}
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.media-item{background:var(--card-bg);border-radius:14px;padding:32px 24px;text-align:center;transition:all .4s;border:1px solid transparent;position:relative;overflow:hidden}
.media-item::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--ninja-orange),var(--chakra-blue));transform:scaleX(0);transition:transform .4s;transform-origin:left}
.media-item:hover::before{transform:scaleX(1)}
.media-item:hover{border-color:rgba(255,107,53,0.3);transform:translateY(-5px);box-shadow:var(--shadow-ninja)}
.media-icon{width:72px;height:72px;margin:0 auto 18px;background:linear-gradient(135deg,var(--ninja-orange),#e55a2b);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:32px;color:#fff}
.media-item h3{font-size:20px;color:var(--text-light);margin-bottom:10px;font-weight:700}
.media-item p{font-size:14px;color:var(--text-muted);line-height:1.7}

/* === 娱乐专区 === */
.entertainment-section{background:#0d1520;position:relative}
.entertainment-section::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(255,107,53,0.05)"/></svg>') repeat;opacity:0.5}
.ent-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;z-index:1}
.ent-card{background:linear-gradient(145deg,var(--card-bg),#1e3045);border-radius:14px;overflow:hidden;transition:all .4s;border:1px solid rgba(0,168,232,0.1)}
.ent-card:hover{border-color:var(--chakra-blue);box-shadow:0 0 25px rgba(0,168,232,0.15)}
.ent-card-img{height:200px;overflow:hidden}
.ent-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ent-card:hover .ent-card-img img{transform:scale(1.1)}
.ent-card-body{padding:18px}
.ent-card-body h4{font-size:16px;color:var(--text-light);margin-bottom:6px;font-weight:700}
.ent-card-body p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* === AI赋能模块 === */
.ai-section{background:linear-gradient(135deg,#0a1628 0%,#1a2a3a 50%,#0f1923 100%)}
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.ai-card{background:rgba(26,42,58,0.8);border:1px solid rgba(0,168,232,0.2);border-radius:16px;padding:36px 28px;transition:all .4s;position:relative;overflow:hidden}
.ai-card::after{content:'';position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(0,168,232,0.08) 0%,transparent 70%);transition:all .5s}
.ai-card:hover::after{top:-30%;right:-30%}
.ai-card:hover{border-color:var(--chakra-blue);box-shadow:0 0 30px rgba(0,168,232,0.15);transform:translateY(-5px)}
.ai-card h3{font-size:22px;color:var(--chakra-blue);margin-bottom:14px;font-weight:800}
.ai-card p{font-size:14px;color:var(--text-muted);line-height:1.8;position:relative;z-index:1}
.ai-badge{display:inline-block;padding:4px 12px;background:linear-gradient(90deg,var(--chakra-blue),#0088cc);color:#fff;font-size:11px;border-radius:20px;margin-bottom:14px;font-weight:600}

/* === 社区模块 === */
.community-section{background:var(--dark-bg)}
.community-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.community-card{background:var(--card-bg);border-radius:16px;padding:30px;border:1px solid rgba(255,183,197,0.1);transition:all .4s}
.community-card:hover{border-color:var(--sakura-pink);box-shadow:0 0 25px rgba(255,183,197,0.1);transform:translateY(-4px)}
.community-card h3{font-size:20px;color:var(--sakura-pink);margin-bottom:12px;font-weight:700}
.community-card p{font-size:14px;color:var(--text-muted);line-height:1.8}
.community-tag{display:inline-block;padding:3px 10px;background:rgba(255,183,197,0.12);color:var(--sakura-pink);font-size:12px;border-radius:12px;margin:4px 4px 0 0}

/* === 专家展示 === */
.experts-section{background:linear-gradient(180deg,#152030 0%,var(--dark-bg) 100%)}
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.expert-card{background:var(--card-bg);border-radius:16px;overflow:hidden;text-align:center;transition:all .4s;border:1px solid transparent}
.expert-card:hover{border-color:var(--gold-accent);box-shadow:0 0 25px rgba(255,215,0,0.1);transform:translateY(-6px)}
.expert-avatar{width:120px;height:120px;border-radius:50%;margin:28px auto 16px;overflow:hidden;border:3px solid var(--ninja-orange);transition:border-color .3s}
.expert-card:hover .expert-avatar{border-color:var(--gold-accent)}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{font-size:18px;color:var(--text-light);font-weight:700;margin-bottom:4px}
.expert-card .title{font-size:13px;color:var(--ninja-orange);margin-bottom:8px}
.expert-card .desc{font-size:13px;color:var(--text-muted);padding:0 20px 24px;line-height:1.6}

/* === FAQ模块 === */
.faq-section{background:var(--dark-bg)}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:var(--card-bg);border-radius:12px;margin-bottom:14px;overflow:hidden;border:1px solid rgba(255,107,53,0.08)}
.faq-question{padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:var(--text-light);font-size:16px;font-weight:600;transition:all .3s}
.faq-question:hover{color:var(--ninja-orange)}
.faq-question .arrow{font-size:20px;transition:transform .3s;color:var(--ninja-orange)}
.faq-question.active .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s;color:var(--text-muted);font-size:14px;line-height:1.8}
.faq-answer.open{padding:0 24px 20px;max-height:500px}

/* === 用户评论 === */
.reviews-section{background:#0d1520}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:var(--card-bg);border-radius:14px;padding:28px;border:1px solid rgba(255,107,53,0.08);transition:all .3s}
.review-card:hover{border-color:rgba(255,107,53,0.2)}
.review-stars{color:var(--gold-accent);font-size:16px;margin-bottom:12px;letter-spacing:2px}
.review-text{font-size:14px;color:var(--text-muted);line-height:1.8;margin-bottom:14px;font-style:italic}
.review-author{font-size:13px;color:var(--text-light);font-weight:600}
.review-date{font-size:12px;color:var(--text-muted);margin-top:4px}

/* === 联系区域 === */
.contact-section{background:linear-gradient(135deg,var(--deep-navy),#1a3050)}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.contact-card{background:rgba(26,42,58,0.6);border-radius:14px;padding:30px;text-align:center;border:1px solid rgba(255,107,53,0.1)}
.contact-card h4{font-size:18px;color:var(--ninja-orange);margin-bottom:10px;font-weight:700}
.contact-card p{font-size:14px;color:var(--text-muted);line-height:1.7}
.contact-card img{max-width:160px;margin:12px auto 0;border-radius:8px}

/* === 页脚 === */
.site-footer{background:#080e16;border-top:2px solid var(--ninja-orange);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo-text{font-size:24px;color:var(--ninja-orange);font-weight:800;margin-bottom:12px}
.footer-brand p{font-size:13px;color:var(--text-muted);line-height:1.7}
.footer-col h5{font-size:16px;color:var(--text-light);font-weight:700;margin-bottom:16px;padding-bottom:8px;border-bottom:2px solid var(--ninja-orange)}
.footer-col a{display:block;font-size:13px;color:var(--text-muted);padding:5px 0;transition:color .3s}
.footer-col a:hover{color:var(--ninja-orange)}
.footer-bottom{border-top:1px solid rgba(255,107,53,0.15);padding:20px 0;text-align:center;font-size:13px;color:var(--text-muted)}
.footer-bottom a{color:var(--ninja-orange)}

/* === 内页通用 === */
.page-hero{height:320px;position:relative;margin-top:72px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.page-hero::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(15,25,35,0.9),rgba(255,107,53,0.2))}
.page-hero h1{position:relative;z-index:1;font-size:42px;color:#fff;font-weight:900;text-shadow:0 4px 20px rgba(255,107,53,0.4)}
.page-content{background:var(--dark-bg);padding:50px 0}
.content-article{background:var(--card-bg);border-radius:16px;padding:40px;margin-bottom:30px;border:1px solid rgba(255,107,53,0.08)}
.content-article h2{font-size:28px;color:var(--ninja-orange);margin-bottom:18px;font-weight:800}
.content-article h3{font-size:22px;color:var(--text-light);margin:24px 0 12px;font-weight:700}
.content-article p{font-size:15px;color:var(--text-muted);line-height:2;margin-bottom:16px}
.content-article img{border-radius:12px;margin:20px 0}

/* === 干扰标签隐藏 === */
div[aria-hidden="true"]{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;padding:0;margin:-1px}

/* === 响应式 === */
@media(max-width:1024px){
  .media-grid,.ai-features{grid-template-columns:repeat(2,1fr)}
  .expert-grid,.ent-cards{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:72px;left:0;width:100%;background:rgba(15,25,35,0.98);flex-direction:column;padding:20px;border-top:1px solid var(--ninja-orange)}
  .main-nav.active{display:flex}
  .mobile-toggle{display:flex}
  .hero-banner{height:480px}
  .hero-content h1{font-size:32px}
  .hero-content p{font-size:15px}
  .section-title h2{font-size:28px}
  .media-grid,.ai-features,.community-grid,.contact-grid{grid-template-columns:1fr}
  .expert-grid,.ent-cards{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .hero-banner{height:400px}
  .hero-content h1{font-size:26px}
  .expert-grid,.ent-cards{grid-template-columns:1fr}
  .hero-btns{flex-direction:column;align-items:center}
  .btn-primary,.btn-outline{width:100%;text-align:center}
}