/* ============================================================
   色虎 - 原创样式表
   配色: 珊瑚玫红 #E8456B | 暖橘 #FF8A5C | 梦幻紫 #6C5CE7
   ============================================================ */

/* === Reset & Base === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:#0F0F1A;color:#E8E8F0;line-height:1.7;overflow-x:hidden}
a{color:#FF8A5C;text-decoration:none;transition:color .3s}
a:hover{color:#E8456B}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-header{text-align:center;margin-bottom:48px}
.section-header h2{font-size:2rem;color:#F0F0F0;margin-bottom:12px;position:relative;display:inline-block}
.section-header h2::after{content:'';position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,#E8456B,#FF8A5C);border-radius:2px}
.section-header p{color:#A0A0B8;font-size:1rem;margin-top:16px}
section{padding:80px 20px}
.btn{display:inline-block;padding:12px 28px;border-radius:30px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s;border:none;text-align:center}
.btn-primary{background:linear-gradient(135deg,#E8456B,#FF8A5C);color:#fff;box-shadow:0 4px 20px rgba(232,69,107,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(232,69,107,.45);color:#fff}
.btn-secondary{background:transparent;color:#FF8A5C;border:2px solid #FF8A5C}
.btn-secondary:hover{background:#FF8A5C;color:#0F0F1A}

/* === Header === */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(15,15,26,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);transition:all .3s}
.site-header.scrolled{background:rgba(15,15,26,.98);box-shadow:0 2px 20px rgba(0,0,0,.3)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px}
.logo img{width:42px;height:42px;border-radius:10px}
.brand-name{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,#E8456B,#FF8A5C);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;gap:8px}
.nav-item{padding:8px 16px;border-radius:20px;font-size:.9rem;color:#C0C0D0;transition:all .3s}
.nav-item:hover,.nav-item.active{color:#fff;background:rgba(232,69,107,.15)}
.header-right{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;background:rgba(255,255,255,.08);border-radius:24px;padding:0 4px 0 16px;border:1px solid rgba(255,255,255,.1);transition:border-color .3s}
.search-box:focus-within{border-color:#E8456B}
.search-box input{background:none;border:none;color:#E8E8F0;font-size:.85rem;width:160px;padding:8px 0;outline:none}
.search-box input::placeholder{color:#666}
.search-box button{background:none;border:none;color:#A0A0B8;cursor:pointer;padding:8px;display:flex;align-items:center}
.search-box button:hover{color:#E8456B}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:#E8E8F0;border-radius:2px;transition:all .3s}

/* === Hero === */
.hero-zone{position:relative;min-height:85vh;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-top:68px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.45)}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,15,26,.3) 0%,rgba(15,15,26,.85) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;max-width:800px;padding:40px 20px}
.hero-content h1{font-size:3rem;font-weight:800;line-height:1.3;margin-bottom:20px;background:linear-gradient(135deg,#fff,#FFD0C0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content h1 span{display:block;font-size:1.2rem;font-weight:400;color:#FF8A5C;margin-top:8px;-webkit-text-fill-color:#FF8A5C}
.hero-desc{font-size:1.1rem;color:#C8C8D8;margin-bottom:32px;line-height:1.8}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;justify-content:center;margin-top:48px}
.hero-stat{text-align:center}
.hero-stat .num{font-size:2rem;font-weight:700;color:#FF8A5C}
.hero-stat .label{font-size:.85rem;color:#A0A0B8;margin-top:4px}

/* === Video Cards === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.video-card{background:#16213E;border-radius:16px;overflow:hidden;transition:all .4s;position:relative;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(232,69,107,.2)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.video-thumb img{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);width:56px;height:56px;background:rgba(232,69,107,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .4s;opacity:0}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1);opacity:1}
.play-btn::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.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}
.video-info{padding:16px}
.video-info h3{font-size:.95rem;color:#E8E8F0;margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;align-items:center;gap:12px;font-size:.8rem;color:#808098}
.video-tags{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.vtag{padding:3px 10px;background:rgba(108,92,231,.15);color:#A08CFF;border-radius:12px;font-size:.72rem}

/* === Feature Grid === */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:linear-gradient(145deg,#16213E,#1A1A2E);border-radius:16px;padding:32px 24px;text-align:center;transition:all .4s;border:1px solid rgba(255,255,255,.05)}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(232,69,107,.3);box-shadow:0 8px 32px rgba(232,69,107,.12)}
.feature-icon{width:64px;height:64px;margin:0 auto 20px;background:linear-gradient(135deg,rgba(232,69,107,.15),rgba(255,138,92,.15));border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.feature-card h3{font-size:1.05rem;color:#E8E8F0;margin-bottom:10px}
.feature-card p{font-size:.85rem;color:#808098;line-height:1.6}

/* === Expert Grid === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#16213E;border-radius:16px;overflow:hidden;text-align:center;transition:all .4s;border:1px solid rgba(255,255,255,.05)}
.expert-card:hover{transform:translateY(-4px);border-color:rgba(108,92,231,.3)}
.expert-card img{width:100%;aspect-ratio:1;object-fit:cover}
.expert-info{padding:20px}
.expert-info h3{font-size:1rem;color:#E8E8F0;margin-bottom:4px}
.expert-info .role{font-size:.82rem;color:#FF8A5C;margin-bottom:8px}
.expert-info p{font-size:.8rem;color:#808098;line-height:1.5;margin-bottom:12px}
.expert-actions{display:flex;gap:8px;justify-content:center}
.expert-actions a{padding:6px 16px;border-radius:20px;font-size:.78rem;border:1px solid rgba(255,138,92,.4);color:#FF8A5C;transition:all .3s}
.expert-actions a:hover{background:#FF8A5C;color:#0F0F1A}

/* === Partner Wall === */
.partner-wall{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;align-items:center}
.partner{background:rgba(255,255,255,.06);padding:16px 32px;border-radius:12px;font-size:.95rem;color:#A0A0B8;transition:all .3s;border:1px solid rgba(255,255,255,.05)}
.partner:hover{background:rgba(232,69,107,.1);border-color:rgba(232,69,107,.3);color:#E8E8F0}

/* === How-To Steps === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.howto-step{background:#16213E;border-radius:16px;padding:32px 24px;text-align:center;position:relative;border:1px solid rgba(255,255,255,.05)}
.step-num{width:48px;height:48px;background:linear-gradient(135deg,#E8456B,#FF8A5C);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;color:#fff;margin:0 auto 16px}
.howto-step h3{font-size:1rem;color:#E8E8F0;margin-bottom:8px}
.howto-step p{font-size:.85rem;color:#808098;line-height:1.6}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#16213E;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.05);transition:border-color .3s}
.faq-item.active{border-color:rgba(232,69,107,.3)}
.faq-question{padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:.95rem;color:#E8E8F0;font-weight:500;transition:color .3s}
.faq-question:hover{color:#FF8A5C}
.faq-question::after{content:'+';font-size:1.4rem;color:#FF8A5C;transition:transform .3s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s;color:#A0A0B8;font-size:.9rem;line-height:1.7}
.faq-item.active .faq-answer{padding:0 24px 20px;max-height:300px}

/* === Testimonials === */
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial{background:#16213E;border-radius:16px;padding:28px;border:1px solid rgba(255,255,255,.05)}
.testimonial .stars{color:#FFD700;font-size:1rem;margin-bottom:12px}
.testimonial p{font-size:.9rem;color:#C0C0D0;line-height:1.7;margin-bottom:16px;font-style:italic}
.testimonial .author{font-size:.82rem;color:#FF8A5C;font-weight:500}

/* === Contact === */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-item{background:#16213E;border-radius:16px;padding:28px;text-align:center;border:1px solid rgba(255,255,255,.05)}
.contact-item h3{font-size:1rem;color:#E8E8F0;margin-bottom:12px}
.contact-item p{font-size:.88rem;color:#A0A0B8;line-height:1.6}

/* === CTA Section === */
.cta-section{text-align:center;background:linear-gradient(135deg,rgba(232,69,107,.12),rgba(108,92,231,.12));border-radius:24px;padding:60px 40px;margin:0 20px}
.cta-section h2{font-size:2rem;color:#F0F0F0;margin-bottom:16px}
.cta-section p{color:#A0A0B8;margin-bottom:28px;font-size:1rem}

/* === Footer === */
.site-footer{background:#0A0A16;padding:60px 20px 0;margin-top:40px}
.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.06)}
.footer-col h4{font-size:1.05rem;color:#E8E8F0;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:linear-gradient(90deg,#E8456B,#FF8A5C);border-radius:2px}
.footer-col p{font-size:.85rem;color:#808098;line-height:1.7}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{color:#808098;font-size:.85rem;transition:color .3s}
.footer-col ul li a:hover{color:#FF8A5C}
.contact-list li{font-size:.85rem;color:#808098;margin-bottom:8px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-top:16px}
.footer-logo img{width:48px;height:48px;border-radius:10px}
.footer-logo span{font-size:1.1rem;font-weight:600;color:#E8E8F0}
.qr-codes{display:flex;gap:16px}
.qr-item{text-align:center}
.qr-item img{width:120px;height:120px;border-radius:8px;margin-bottom:6px}
.qr-item span{font-size:.78rem;color:#808098}
.footer-share{max-width:1200px;margin:0 auto;padding:20px 0;display:flex;align-items:center;gap:12px;border-bottom:1px solid rgba(255,255,255,.06)}
.footer-share span{color:#808098;font-size:.85rem}
.social-links{display:flex;gap:10px}
.social-links a{padding:6px 16px;background:rgba(255,255,255,.06);border-radius:20px;font-size:.82rem;color:#A0A0B8;transition:all .3s}
.social-links a:hover{background:rgba(232,69,107,.2);color:#E8456B}
.footer-bottom{max-width:1200px;margin:0 auto;padding:20px 0;text-align:center}
.footer-bottom p{font-size:.82rem;color:#606078}
.footer-bottom a{color:#808098}
.update-time{margin-top:6px;font-size:.78rem;color:#505068}

/* === Video Modal === */
.video-modal{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center}
.modal-overlay{position:absolute;inset:0;background:rgba(0,0,0,.85)}
.modal-content{position:relative;z-index:2;width:90%;max-width:900px;background:#16213E;border-radius:16px;overflow:hidden}
.modal-close{position:absolute;top:12px;right:16px;background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;z-index:3;line-height:1}
.modal-video{aspect-ratio:16/9;background:#000;display:flex;align-items:center;justify-content:center;color:#808098;font-size:1.1rem}

/* === Breadcrumb === */
.breadcrumb{max-width:1200px;margin:0 auto;padding:90px 20px 0;font-size:.85rem}
.breadcrumb a{color:#808098}
.breadcrumb a:hover{color:#FF8A5C}
.breadcrumb span{color:#505068;margin:0 8px}

/* === Page Hero === */
.page-hero{padding:40px 20px 60px;text-align:center}
.page-hero h1{font-size:2.2rem;color:#F0F0F0;margin-bottom:12px}
.page-hero p{color:#A0A0B8;font-size:1rem;max-width:700px;margin:0 auto}

/* === About === */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;max-width:1200px;margin:0 auto;padding:0 20px}
.about-content h2{font-size:1.8rem;color:#F0F0F0;margin-bottom:16px}
.about-content p{color:#A0A0B8;font-size:.92rem;line-height:1.8;margin-bottom:16px}
.about-grid img{border-radius:16px;width:100%}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:1200px;margin:40px auto 0;padding:0 20px}
.stat-item{background:#16213E;border-radius:12px;padding:24px;text-align:center;border:1px solid rgba(255,255,255,.05)}
.stat-item .num{font-size:2rem;font-weight:700;color:#FF8A5C}
.stat-item .label{font-size:.82rem;color:#808098;margin-top:4px}

/* === Timeline === */
.timeline{max-width:700px;margin:40px auto 0;position:relative;padding-left:30px}
.timeline::before{content:'';position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,#E8456B,#6C5CE7)}
.timeline-item{position:relative;padding:0 0 32px 24px}
.timeline-item::before{content:'';position:absolute;left:-5px;top:6px;width:12px;height:12px;background:#E8456B;border-radius:50%;border:2px solid #0F0F1A}
.timeline-item .year{font-size:.85rem;color:#FF8A5C;font-weight:600;margin-bottom:4px}
.timeline-item p{font-size:.88rem;color:#A0A0B8;line-height:1.6}

/* === Community Grid === */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.community-card{background:linear-gradient(145deg,#16213E,#1A1A2E);border-radius:16px;padding:28px;text-align:center;border:1px solid rgba(255,255,255,.05);transition:all .4s}
.community-card:hover{border-color:rgba(108,92,231,.3);transform:translateY(-4px)}
.community-card .card-icon{font-size:2.2rem;margin-bottom:16px}
.community-card h3{font-size:1rem;color:#E8E8F0;margin-bottom:8px}
.community-card p{font-size:.85rem;color:#808098;line-height:1.6}

/* === AI Grid === */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:linear-gradient(145deg,rgba(108,92,231,.08),rgba(232,69,107,.08));border-radius:16px;padding:28px;border:1px solid rgba(108,92,231,.15);transition:all .4s}
.ai-card:hover{border-color:rgba(108,92,231,.4);transform:translateY(-4px)}
.ai-card .card-icon{font-size:2rem;margin-bottom:16px}
.ai-card h3{font-size:1rem;color:#E8E8F0;margin-bottom:8px}
.ai-card p{font-size:.85rem;color:#808098;line-height:1.6}

/* === Entertainment Grid === */
.entertainment-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.ent-card{background:#16213E;border-radius:16px;overflow:hidden;transition:all .4s;border:1px solid rgba(255,255,255,.05)}
.ent-card:hover{transform:translateY(-4px);border-color:rgba(255,138,92,.3)}
.ent-card .card-img{aspect-ratio:16/9;overflow:hidden}
.ent-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ent-card:hover .card-img img{transform:scale(1.06)}
.ent-card .card-body{padding:16px}
.ent-card h3{font-size:.92rem;color:#E8E8F0;margin-bottom:6px}
.ent-card p{font-size:.8rem;color:#808098;line-height:1.5}

/* === Jammer (hidden) === */
.jammer{display:none!important;position:absolute;overflow:hidden;clip:rect(0,0,0,0);width:1px;height:1px}

/* === Responsive === */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .entertainment-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{display:none;position:fixed;top:68px;left:0;right:0;background:rgba(15,15,26,.98);flex-direction:column;padding:20px;gap:4px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-links.open{display:flex}
  .nav-toggle{display:flex}
  .search-box{display:none}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .testimonial-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .ai-grid{grid-template-columns:1fr}
  .hero-content h1{font-size:2rem}
  .hero-stats{gap:20px}
  section{padding:50px 16px}
  .section-header h2{font-size:1.6rem}
  .footer-grid{grid-template-columns:1fr}
  .qr-codes{justify-content:center}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .entertainment-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .hero-content h1{font-size:1.6rem}
  .hero-stats{flex-direction:column;gap:12px}
}