/* ===== 全局重置与基础 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --clr-primary:#b8243f;
  --clr-primary-dark:#8a1a2e;
  --clr-accent:#d4a017;
  --clr-accent-light:#f0d060;
  --clr-bg:#0d0d14;
  --clr-bg-card:#16161f;
  --clr-bg-section:#111119;
  --clr-text:#e8e8ec;
  --clr-text-muted:#9a9aaa;
  --clr-border:#2a2a3a;
  --clr-success:#2ecc71;
  --clr-warning:#f39c12;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:20px;
  --shadow-card:0 4px 24px rgba(0,0,0,.4);
  --shadow-hover:0 8px 40px rgba(184,36,63,.25);
  --font-main:'Noto Sans SC','PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
  --font-heading:'Noto Serif SC','STSong','SimSun',serif;
  --max-w:1200px;
  --transition:all .3s ease;
}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-main);background:var(--clr-bg);color:var(--clr-text);line-height:1.8;overflow-x:hidden;min-height:100vh}
a{color:var(--clr-accent);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--clr-accent-light)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);line-height:1.4;color:#fff}

/* ===== 容器 ===== */
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 20px}

/* ===== 顶部导航（非sticky） ===== */
.site-header{background:linear-gradient(180deg,#0a0a12 0%,#12121c 100%);border-bottom:1px solid var(--clr-border);position:relative;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;flex-wrap:wrap}
.site-logo img{height:48px;width:auto}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:28px;cursor:pointer;padding:8px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{padding:10px 16px;border-radius:var(--radius-sm);font-size:.95rem;color:var(--clr-text);transition:var(--transition);white-space:nowrap}
.main-nav a:hover,.main-nav a.active{background:var(--clr-primary);color:#fff}
.cta-btn{display:inline-block;padding:10px 24px;background:linear-gradient(135deg,var(--clr-primary),var(--clr-primary-dark));color:#fff!important;border-radius:var(--radius-md);font-weight:700;transition:var(--transition);border:none;cursor:pointer;text-align:center}
.cta-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}

/* ===== 面包屑 ===== */
.breadcrumb{padding:12px 0;font-size:.85rem;color:var(--clr-text-muted)}
.breadcrumb a{color:var(--clr-accent)}
.breadcrumb span{margin:0 6px;color:var(--clr-text-muted)}

/* ===== Hero区域 ===== */
.hero-section{position:relative;overflow:hidden;min-height:420px;display:flex;align-items:center;justify-content:center;text-align:center}
.hero-section .hero-bg{position:absolute;inset:0;z-index:0}
.hero-section .hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.6}
.hero-content{position:relative;z-index:2;padding:60px 20px}
.hero-content h1{font-size:2.4rem;margin-bottom:16px;text-shadow:0 2px 12px rgba(0,0,0,.7)}
.hero-content p{font-size:1.15rem;color:var(--clr-text-muted);max-width:700px;margin:0 auto 28px}

/* ===== 通用段落区域 ===== */
.section{padding:50px 0}
.section-alt{background:var(--clr-bg-section)}
.section-title{font-size:1.8rem;margin-bottom:28px;padding-bottom:12px;border-bottom:3px solid var(--clr-primary);display:inline-block}
.section-subtitle{font-size:1rem;color:var(--clr-text-muted);margin-bottom:24px;max-width:800px}
.section p{margin-bottom:16px}

/* ===== 服务模块（五列） ===== */
.services-row{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin:30px 0}
.service-card{background:var(--clr-bg-card);border:1px solid var(--clr-border);border-radius:var(--radius-md);padding:28px 16px;text-align:center;transition:var(--transition)}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--clr-primary)}
.service-card img{width:80px;height:80px;margin:0 auto 16px;border-radius:50%;object-fit:cover}
.service-card h3{font-size:1rem;margin-bottom:8px;color:var(--clr-accent)}
.service-card p{font-size:.85rem;color:var(--clr-text-muted)}

/* ===== 电影卡片网格 ===== */
.movie-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:30px 0}
.movie-card{background:var(--clr-bg-card);border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--clr-border);transition:var(--transition)}
.movie-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card);border-color:var(--clr-primary)}
.movie-card .card-thumb{position:relative;overflow:hidden;aspect-ratio:3/2}
.movie-card .card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.movie-card:hover .card-thumb img{transform:scale(1.06)}
.movie-card .play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.3);opacity:0;transition:opacity .3s}
.movie-card:hover .play-overlay{opacity:1}
.play-icon{width:50px;height:50px;border:3px solid #fff;border-radius:50%;display:flex;align-items:center;justify-content:center}
.play-icon::after{content:'';border-left:18px solid #fff;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.movie-card .card-body{padding:16px}
.movie-card .card-body h3{font-size:1.05rem;margin-bottom:6px}
.movie-card .card-body p{font-size:.85rem;color:var(--clr-text-muted);line-height:1.6}
.movie-card .card-meta{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-top:1px solid var(--clr-border);font-size:.8rem;color:var(--clr-text-muted)}
.stars{color:var(--clr-accent)}

/* ===== 案例模块 ===== */
.cases-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:30px 0}
.case-item{border-radius:var(--radius-md);overflow:hidden;background:var(--clr-bg-card);border:1px solid var(--clr-border);transition:var(--transition)}
.case-item:hover{box-shadow:var(--shadow-card);transform:translateY(-4px)}
.case-item img{width:100%;aspect-ratio:4/3;object-fit:cover}
.case-item .case-info{padding:14px}
.case-item .case-info h4{font-size:.95rem;margin-bottom:6px}
.case-item .case-info p{font-size:.82rem;color:var(--clr-text-muted)}

/* ===== 国际合作 ===== */
.collab-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:30px 0}
.collab-card{border-radius:var(--radius-md);overflow:hidden;background:var(--clr-bg-card);border:1px solid var(--clr-border);transition:var(--transition)}
.collab-card:hover{box-shadow:var(--shadow-card)}
.collab-card img{width:100%;aspect-ratio:3/2;object-fit:cover}
.collab-card .collab-info{padding:14px}
.collab-card .collab-info h4{font-size:.95rem;margin-bottom:6px}
.collab-card .collab-info p{font-size:.82rem;color:var(--clr-text-muted)}

/* ===== 视频播放器 ===== */
.video-player-wrap{position:relative;width:100%;max-width:900px;margin:30px auto;aspect-ratio:16/9;background:#000;border-radius:var(--radius-md);overflow:hidden;border:2px solid var(--clr-border)}
.video-player-wrap video{width:100%;height:100%;object-fit:contain}
.video-player-wrap .poster-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.5);cursor:pointer}
.video-player-wrap .poster-overlay img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.video-player-wrap .poster-overlay .play-icon{z-index:1;width:70px;height:70px}

/* ===== 评论 ===== */
.reviews-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px;margin:30px 0}
.review-card{background:var(--clr-bg-card);border:1px solid var(--clr-border);border-radius:var(--radius-md);padding:24px}
.review-header{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:var(--clr-primary);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#fff;font-weight:700}
.review-meta h4{font-size:.95rem;margin-bottom:2px}
.review-meta span{font-size:.8rem;color:var(--clr-text-muted)}
.review-card .stars{margin-bottom:10px}
.review-card p{font-size:.9rem;color:var(--clr-text-muted);line-height:1.7}

/* ===== FAQ ===== */
.faq-list{max-width:860px;margin:30px auto}
.faq-item{border:1px solid var(--clr-border);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;background:var(--clr-bg-card)}
.faq-question{padding:18px 22px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1rem;transition:var(--transition)}
.faq-question:hover{background:rgba(184,36,63,.1)}
.faq-question::after{content:'+';font-size:1.4rem;color:var(--clr-accent);transition:transform .3s}
.faq-item.open .faq-question::after{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 22px}
.faq-item.open .faq-answer{max-height:600px;padding:0 22px 18px}
.faq-answer p{font-size:.9rem;color:var(--clr-text-muted);line-height:1.8}

/* ===== 关于我们 ===== */
.about-content{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;margin:30px 0}
.about-content .about-text p{margin-bottom:14px;font-size:.95rem;line-height:1.9}
.about-content .about-image{border-radius:var(--radius-md);overflow:hidden}
.about-content .about-image img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ===== 支付方式 ===== */
.payment-section{text-align:center;padding:40px 0}
.payment-icons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin:20px 0}
.payment-icons img{height:50px;width:auto;border-radius:var(--radius-sm)}

/* ===== 授权信息 ===== */
.license-section{display:flex;align-items:center;gap:30px;padding:30px;background:var(--clr-bg-card);border-radius:var(--radius-md);border:1px solid var(--clr-border);margin:30px 0}
.license-section img{width:120px;height:120px;flex-shrink:0}

/* ===== 客户支持 ===== */
.support-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:30px 0}
.support-item{background:var(--clr-bg-card);border:1px solid var(--clr-border);border-radius:var(--radius-md);padding:24px;text-align:center;transition:var(--transition)}
.support-item:hover{border-color:var(--clr-primary)}
.support-item .icon{font-size:2rem;margin-bottom:12px}
.support-item h4{margin-bottom:8px;font-size:.95rem}
.support-item p{font-size:.85rem;color:var(--clr-text-muted)}

/* ===== 负责任影视 ===== */
.responsible-box{background:linear-gradient(135deg,#1a1a2e,#16213e);border:1px solid var(--clr-border);border-radius:var(--radius-md);padding:30px;margin:30px 0}
.responsible-box h3{color:var(--clr-warning);margin-bottom:16px}
.responsible-box ul{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.responsible-box ul li{padding:8px 0;padding-left:24px;position:relative;font-size:.9rem;color:var(--clr-text-muted)}
.responsible-box ul li::before{content:'✓';position:absolute;left:0;color:var(--clr-success);font-weight:700}

/* ===== 作者信息 ===== */
.author-box{display:flex;align-items:center;gap:20px;background:var(--clr-bg-card);border:1px solid var(--clr-border);border-radius:var(--radius-md);padding:24px;margin:30px 0}
.author-box img{width:80px;height:80px;border-radius:50%;border:3px solid var(--clr-primary)}
.author-info h4{margin-bottom:4px}
.author-info p{font-size:.85rem;color:var(--clr-text-muted)}

/* ===== 页脚 ===== */
.site-footer{background:#08080e;border-top:1px solid var(--clr-border);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.footer-col h4{font-size:1rem;margin-bottom:16px;color:var(--clr-accent)}
.footer-col p{font-size:.85rem;color:var(--clr-text-muted);line-height:1.8}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:.85rem;color:var(--clr-text-muted);transition:var(--transition)}
.footer-col ul li a:hover{color:var(--clr-accent)}
.footer-social{display:flex;gap:10px;margin-top:14px}
.footer-social a img{width:36px;height:36px;border-radius:8px;transition:var(--transition)}
.footer-social a:hover img{transform:scale(1.15)}
.footer-bottom{border-top:1px solid var(--clr-border);padding:20px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}
.footer-bottom p{font-size:.8rem;color:var(--clr-text-muted)}
.footer-bottom .footer-badges{display:flex;align-items:center;gap:12px}
.footer-bottom .footer-badges img{height:36px;width:auto}

/* ===== APP下载页 ===== */
.app-hero{text-align:center;padding:60px 20px;background:linear-gradient(180deg,#0d0d1a,#1a0a2e)}
.app-hero h1{font-size:2.2rem;margin-bottom:16px}
.app-hero p{color:var(--clr-text-muted);max-width:600px;margin:0 auto 30px}
.app-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:40px 0}
.app-feature{background:var(--clr-bg-card);border:1px solid var(--clr-border);border-radius:var(--radius-md);padding:28px;text-align:center}
.app-feature .icon{font-size:2.4rem;margin-bottom:14px}
.app-feature h3{margin-bottom:8px;font-size:1rem}
.app-feature p{font-size:.85rem;color:var(--clr-text-muted)}
.download-buttons{display:flex;justify-content:center;gap:20px;margin:30px 0;flex-wrap:wrap}
.download-buttons a img{height:60px;width:auto;border-radius:var(--radius-md);transition:var(--transition)}
.download-buttons a:hover img{transform:scale(1.05)}

/* ===== 内页布局 ===== */
.inner-hero{padding:40px 0;background:linear-gradient(180deg,var(--clr-bg),var(--clr-bg-section))}
.inner-hero h1{font-size:2rem;margin-bottom:10px}
.inner-hero p{color:var(--clr-text-muted)}
.content-area{padding:40px 0}
.content-area article{max-width:900px}
.content-area article h2{font-size:1.5rem;margin:30px 0 16px;color:var(--clr-accent)}
.content-area article h3{font-size:1.2rem;margin:24px 0 12px}
.content-area article p{margin-bottom:16px;line-height:1.9;font-size:.95rem}
.content-area article img{border-radius:var(--radius-md);margin:20px 0}
.content-sidebar{position:sticky;top:20px}
.sidebar-card{background:var(--clr-bg-card);border:1px solid var(--clr-border);border-radius:var(--radius-md);padding:20px;margin-bottom:20px}
.sidebar-card h4{margin-bottom:14px;font-size:.95rem;color:var(--clr-accent)}
.sidebar-card ul li{margin-bottom:8px}
.sidebar-card ul li a{font-size:.85rem;color:var(--clr-text-muted)}
.content-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:start}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .services-row{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cases-grid,.collab-grid{grid-template-columns:repeat(2,1fr)}
  .content-layout{grid-template-columns:1fr}
  .support-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-toggle{display:block}
  .main-nav{display:none;width:100%;flex-direction:column;padding:10px 0}
  .main-nav.open{display:flex}
  .main-nav a{width:100%;text-align:center;padding:12px}
  .hero-content h1{font-size:1.6rem}
  .hero-section{min-height:300px}
  .services-row{grid-template-columns:repeat(2,1fr)}
  .movie-grid{grid-template-columns:repeat(2,1fr)}
  .cases-grid,.collab-grid{grid-template-columns:1fr 1fr}
  .about-content{grid-template-columns:1fr}
  .reviews-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .responsible-box ul{grid-template-columns:1fr}
  .app-features{grid-template-columns:1fr}
  .section-title{font-size:1.4rem}
  .license-section{flex-direction:column;text-align:center}
  .support-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .services-row{grid-template-columns:1fr}
  .movie-grid{grid-template-columns:1fr}
  .cases-grid,.collab-grid{grid-template-columns:1fr}
  .download-buttons{flex-direction:column;align-items:center}
  .header-inner{padding:10px 0}
}

/* ===== 动画 ===== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideInLeft{from{opacity:0;transform:translateX(-40px)}to{opacity:1;transform:translateX(0)}}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
.animate-in{animation:fadeInUp .6s ease forwards;opacity:0}
.animate-slide{animation:slideInLeft .6s ease forwards;opacity:0}
.pulse-hover:hover{animation:pulse .6s ease}