/* ============================================
   高清无码 - 原创样式表
   品牌色系：甜心粉 #E8456B / 暖橘 #FF7E5F / 梦幻紫 #6C5CE7
   ============================================ */

/* --- CSS Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#2D2D3A;background:#FFF5F7;line-height:1.7;overflow-x:hidden}
a{color:#E8456B;text-decoration:none;transition:color .3s}
a:hover{color:#FF7E5F}
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}

/* --- Utility --- */
.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:#1A1A2E;position:relative;display:inline-block;padding-bottom:12px}
.section-title h2::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:4px;background:linear-gradient(135deg,#E8456B,#FF7E5F);border-radius:2px}
.section-title p{color:#8E8EA0;margin-top:10px;font-size:1rem}
.btn-primary{display:inline-block;padding:12px 32px;background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;border-radius:30px;font-size:1rem;font-weight:600;transition:all .3s;border:none;cursor:pointer}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(232,69,107,.35);color:#fff}
.btn-outline{display:inline-block;padding:10px 28px;border:2px solid #E8456B;color:#E8456B;border-radius:30px;font-size:.95rem;font-weight:600;transition:all .3s}
.btn-outline:hover{background:#E8456B;color:#fff}
.tag{display:inline-block;padding:4px 12px;background:rgba(232,69,107,.1);color:#E8456B;border-radius:20px;font-size:.8rem;margin:3px}

/* --- Header / Navigation --- */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(26,26,46,.92);backdrop-filter:blur(12px);transition:all .3s}
.site-header.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo-link{display:flex;align-items:center;gap:10px}
.logo-link img{height:40px;width:auto}
.logo-link span{color:#fff;font-size:1.25rem;font-weight:700}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{color:rgba(255,255,255,.85);padding:8px 16px;border-radius:8px;font-size:.95rem;transition:all .3s}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(232,69,107,.3)}
.search-box{position:relative;margin-left:12px}
.search-box input{width:180px;padding:8px 36px 8px 14px;border:1px solid rgba(255,255,255,.2);border-radius:20px;background:rgba(255,255,255,.08);color:#fff;font-size:.9rem;outline:none;transition:all .3s}
.search-box input::placeholder{color:rgba(255,255,255,.5)}
.search-box input:focus{border-color:#E8456B;width:220px;background:rgba(255,255,255,.12)}
.search-box .search-icon{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:rgba(255,255,255,.5);font-size:.9rem;cursor:pointer}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.mobile-toggle span{display:block;width:24px;height:2px;background:#fff;transition:all .3s}

/* --- Hero Banner --- */
.hero{position:relative;height:560px;overflow:hidden;margin-top:68px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.7)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,26,46,.7),rgba(108,92,231,.4))}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:#fff;padding:0 20px}
.hero-content h1{font-size:3rem;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.3)}
.hero-content h1 em{font-style:normal;background:linear-gradient(135deg,#E8456B,#FF7E5F);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-content p{font-size:1.2rem;max-width:680px;margin-bottom:30px;opacity:.9}
.hero-stats{display:flex;gap:50px;margin-top:30px}
.hero-stats .stat{text-align:center}
.hero-stats .stat-num{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg,#E8456B,#FF7E5F);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-stats .stat-label{font-size:.85rem;opacity:.8;margin-top:4px}

/* --- Video Card Grid --- */
.video-section{padding:70px 0}
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.video-card{position:relative;border-radius:16px;overflow:hidden;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .4s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(232,69,107,.15)}
.video-card .thumb{position:relative;aspect-ratio:3/4;overflow:hidden}
.video-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .thumb img{transform:scale(1.06)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(232,69,107,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .3s}
.video-card:hover .play-btn{opacity:1}
.video-card .play-btn::after{content:'';display:block;width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-card .card-body{padding:14px 16px}
.video-card .card-body h3{font-size:.95rem;color:#1A1A2E;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;align-items:center;justify-content:space-between;color:#8E8EA0;font-size:.8rem}
.video-card .card-meta .views{display:flex;align-items:center;gap:4px}
.video-card .card-meta .likes{display:flex;align-items:center;gap:4px}
.video-card .live-badge{position:absolute;top:10px;left:10px;background:#E8456B;color:#fff;padding:3px 10px;border-radius:4px;font-size:.75rem;font-weight:600;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.7}}

/* --- Service Modules --- */
.services-section{padding:70px 0;background:#fff}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.service-card{padding:36px 28px;border-radius:20px;background:linear-gradient(145deg,#FFF5F7,#fff);border:1px solid rgba(232,69,107,.08);transition:all .4s;text-align:center}
.service-card:hover{transform:translateY(-4px);box-shadow:0 12px 35px rgba(232,69,107,.1);border-color:rgba(232,69,107,.2)}
.service-icon{width:64px;height:64px;margin:0 auto 20px;background:linear-gradient(135deg,#E8456B,#FF7E5F);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.service-card h3{font-size:1.2rem;color:#1A1A2E;margin-bottom:10px}
.service-card p{color:#8E8EA0;font-size:.9rem;line-height:1.6}

/* --- AI Section --- */
.ai-section{padding:70px 0;background:linear-gradient(135deg,#1A1A2E,#2D2D3A)}
.ai-section .section-title h2{color:#fff}
.ai-section .section-title p{color:rgba(255,255,255,.6)}
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.ai-card{padding:32px 24px;border-radius:18px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(10px);transition:all .4s}
.ai-card:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.ai-card .ai-icon{font-size:2.5rem;margin-bottom:16px}
.ai-card h4{color:#fff;font-size:1.1rem;margin-bottom:10px}
.ai-card p{color:rgba(255,255,255,.6);font-size:.9rem;line-height:1.6}
.ai-card .ai-tag{margin-top:12px}
.ai-card .ai-tag span{display:inline-block;padding:3px 10px;background:rgba(232,69,107,.2);color:#E8456B;border-radius:12px;font-size:.75rem;margin:3px}

/* --- Community Section --- */
.community-section{padding:70px 0}
.community-banner{border-radius:20px;overflow:hidden;margin-bottom:40px;position:relative}
.community-banner img{width:100%;height:360px;object-fit:cover}
.community-banner .overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(232,69,107,.6),rgba(108,92,231,.6));display:flex;flex-direction:column;justify-content:center;align-items:center;color:#fff;text-align:center}
.community-banner .overlay h2{font-size:2.2rem;margin-bottom:12px}
.community-banner .overlay p{font-size:1.1rem;opacity:.9;max-width:500px}
.community-features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.comm-card{padding:24px 20px;border-radius:14px;background:#fff;border:1px solid rgba(232,69,107,.06);text-align:center;transition:all .3s}
.comm-card:hover{box-shadow:0 8px 25px rgba(232,69,107,.1);transform:translateY(-3px)}
.comm-card .comm-icon{font-size:2rem;margin-bottom:12px}
.comm-card h4{font-size:1rem;color:#1A1A2E;margin-bottom:6px}
.comm-card p{color:#8E8EA0;font-size:.85rem}

/* --- Expert Section --- */
.expert-section{padding:70px 0;background:#fff}
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.expert-card{border-radius:20px;overflow:hidden;background:#FFF5F7;transition:all .4s}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 12px 35px rgba(232,69,107,.12)}
.expert-card .expert-photo{width:100%;height:280px;object-fit:cover}
.expert-card .expert-info{padding:24px}
.expert-card .expert-info h4{font-size:1.15rem;color:#1A1A2E;margin-bottom:4px}
.expert-card .expert-info .role{color:#E8456B;font-size:.9rem;margin-bottom:10px}
.expert-card .expert-info p{color:#8E8EA0;font-size:.85rem;line-height:1.6;margin-bottom:14px}
.expert-card .expert-info .awards{margin-bottom:14px}
.expert-card .expert-info .awards span{display:inline-block;padding:3px 10px;background:rgba(108,92,231,.1);color:#6C5CE7;border-radius:12px;font-size:.75rem;margin:2px}
.expert-card .expert-btns{display:flex;gap:10px}
.expert-card .expert-btns a{flex:1;text-align:center;padding:8px;border-radius:8px;font-size:.85rem;font-weight:600;transition:all .3s}
.expert-card .expert-btns .btn-contact{background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff}
.expert-card .expert-btns .btn-works{border:1px solid #E8456B;color:#E8456B}
.expert-card .expert-btns .btn-works:hover{background:#E8456B;color:#fff}

/* --- Reviews Section --- */
.reviews-section{padding:70px 0}
.reviews-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{padding:28px;border-radius:16px;background:#fff;border:1px solid rgba(232,69,107,.06);transition:all .3s}
.review-card:hover{box-shadow:0 8px 25px rgba(232,69,107,.08)}
.review-header{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#E8456B,#FF7E5F);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.review-user .name{font-weight:600;color:#1A1A2E;font-size:.95rem}
.review-user .date{color:#8E8EA0;font-size:.8rem}
.review-stars{color:#FF7E5F;font-size:.9rem;letter-spacing:2px;margin-bottom:10px}
.review-card p{color:#2D2D3A;font-size:.9rem;line-height:1.7}

/* --- FAQ Section --- */
.faq-section{padding:70px 0;background:#fff}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid rgba(232,69,107,.1);border-radius:12px;margin-bottom:14px;overflow:hidden;transition:all .3s}
.faq-item:hover{border-color:rgba(232,69,107,.25)}
.faq-question{padding:18px 24px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:600;color:#1A1A2E;font-size:1rem;background:#FFF5F7;transition:all .3s}
.faq-question:hover{background:rgba(232,69,107,.06)}
.faq-question .arrow{transition:transform .3s;color:#E8456B;font-size:1.2rem}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s ease;color:#8E8EA0;font-size:.9rem;line-height:1.7}
.faq-item.active .faq-answer{padding:16px 24px;max-height:300px}

/* --- Partners Section --- */
.partners-section{padding:60px 0}
.partners-logos{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:40px;opacity:.6}
.partners-logos .partner{font-size:1.4rem;font-weight:700;color:#2D2D3A;transition:all .3s}
.partners-logos .partner:hover{opacity:1;color:#E8456B}

/* --- Contact Section --- */
.contact-section{padding:70px 0;background:linear-gradient(135deg,#1A1A2E,#2D2D3A)}
.contact-section .section-title h2{color:#fff}
.contact-section .section-title p{color:rgba(255,255,255,.6)}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px;align-items:start}
.contact-info{color:rgba(255,255,255,.8)}
.contact-info h3{color:#fff;font-size:1.3rem;margin-bottom:20px}
.contact-info .info-item{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
.contact-info .info-item .icon{width:40px;height:40px;background:rgba(232,69,107,.2);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#E8456B;font-size:1.1rem;flex-shrink:0}
.contact-info .info-item .text{font-size:.9rem;line-height:1.6}
.contact-info .info-item .text strong{color:#fff;display:block;margin-bottom:2px}
.contact-qrcodes{display:flex;gap:30px;justify-content:center}
.qrcode-item{text-align:center}
.qrcode-item img{width:160px;height:160px;border-radius:12px;border:3px solid rgba(255,255,255,.1)}
.qrcode-item p{color:rgba(255,255,255,.7);margin-top:10px;font-size:.85rem}

/* --- How-To Guide --- */
.howto-section{padding:70px 0}
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.step-card{text-align:center;padding:30px 20px;border-radius:16px;background:#fff;border:1px solid rgba(232,69,107,.06);position:relative}
.step-num{width:48px;height:48px;background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:800;margin:0 auto 16px}
.step-card h4{font-size:1rem;color:#1A1A2E;margin-bottom:8px}
.step-card p{color:#8E8EA0;font-size:.85rem}

/* --- Share Bar --- */
.share-bar{padding:40px 0;text-align:center;background:#FFF5F7}
.share-bar h3{font-size:1.1rem;color:#1A1A2E;margin-bottom:16px}
.share-icons{display:flex;justify-content:center;gap:16px}
.share-icon{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;transition:all .3s;cursor:pointer}
.share-icon:hover{transform:translateY(-3px)}
.share-icon.wechat{background:#07C160}
.share-icon.weibo{background:#E6162D}
.share-icon.douyin{background:#1A1A2E}
.share-icon.bilibili{background:#00A1D6}

/* --- Footer --- */
.site-footer{background:#0D0D1A;color:rgba(255,255,255,.6);padding:50px 0 0}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.06)}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .footer-logo img{height:36px}
.footer-brand .footer-logo span{color:#fff;font-size:1.15rem;font-weight:700}
.footer-brand p{font-size:.85rem;line-height:1.7;max-width:300px}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:16px}
.footer-col a{display:block;color:rgba(255,255,255,.5);font-size:.85rem;margin-bottom:10px;transition:color .3s}
.footer-col a:hover{color:#E8456B}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 0;font-size:.8rem}
.footer-bottom .update-time{color:rgba(255,255,255,.4)}

/* --- Breadcrumb --- */
.breadcrumb{padding:20px 0;font-size:.85rem;color:#8E8EA0}
.breadcrumb a{color:#E8456B}
.breadcrumb span{margin:0 8px;color:#ccc}

/* --- Inner Page --- */
.page-hero{height:300px;background:linear-gradient(135deg,#1A1A2E,#2D2D3A);display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;margin-top:68px}
.page-hero h1{font-size:2.4rem;margin-bottom:10px}
.page-hero p{font-size:1.05rem;opacity:.8}
.page-content{padding:50px 0}

/* --- Responsive --- */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .services-grid,.ai-features,.expert-grid{grid-template-columns:repeat(2,1fr)}
  .community-features{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;flex-direction:column;padding:10px 0}
  .main-nav.open{display:flex}
  .mobile-toggle{display:flex}
  .search-box{width:100%;margin:10px 0 0}
  .search-box input{width:100%}
  .hero{height:420px}
  .hero-content h1{font-size:2rem}
  .hero-stats{gap:24px}
  .hero-stats .stat-num{font-size:1.6rem}
  .video-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .services-grid,.ai-features,.expert-grid{grid-template-columns:1fr}
  .community-features{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px;text-align:center}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .hero{height:360px}
  .hero-content h1{font-size:1.6rem}
  .hero-content p{font-size:1rem}
}

/* --- Image Display --- */
img{opacity:1}

/* --- Video Card Hover Animation --- */
.video-card .thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.4),transparent);opacity:0;transition:opacity .3s}
.video-card:hover .thumb::after{opacity:1}

/* --- Scrollbar --- */
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:#FFF5F7}
::-webkit-scrollbar-thumb{background:linear-gradient(135deg,#E8456B,#FF7E5F);border-radius:4px}

/* --- Selection --- */
::selection{background:rgba(232,69,107,.2);color:#1A1A2E}