/* 老虎菜 - 主样式文件 | su050150.cn */
:root {
  --primary: #e8336d;
  --primary-dark: #c0235a;
  --primary-light: #ff6b9d;
  --secondary: #ff9a3c;
  --accent: #7c3aed;
  --bg-dark: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-section: #16213e;
  --text-main: #f0f0f5;
  --text-muted: #9999bb;
  --text-dark: #333344;
  --border: rgba(232,51,109,0.2);
  --gradient-hero: linear-gradient(135deg, #0f0f1a 0%, #1a0a2e 50%, #2a0a1e 100%);
  --gradient-card: linear-gradient(145deg, #1a1a2e, #16213e);
  --gradient-btn: linear-gradient(135deg, #e8336d, #ff6b9d);
  --shadow-card: 0 8px 32px rgba(232,51,109,0.15);
  --shadow-hover: 0 16px 48px rgba(232,51,109,0.3);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:var(--bg-dark);color:var(--text-main);line-height:1.7;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary-light);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary)}
ul{list-style:none}

/* ===== HEADER ===== */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(15,15,26,0.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0}
.header-inner{display:flex;align-items:center;justify-content:space-between;max-width:1280px;margin:0 auto;padding:0 24px;height:70px}
.logo-wrap{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-wrap img{height:44px;width:auto}
.logo-text{font-size:1.4rem;font-weight:800;background:var(--gradient-btn);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* ===== NAV ===== */
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{color:var(--text-main);font-size:0.92rem;font-weight:500;padding:8px 14px;border-radius:8px;transition:all var(--transition);white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:var(--primary-light);background:rgba(232,51,109,0.12)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;color:var(--text-main)}
.nav-toggle span{display:block;width:24px;height:2px;background:currentColor;margin:5px 0;transition:var(--transition)}

/* ===== SEARCH BAR ===== */
.search-bar-wrap{background:var(--bg-section);border-bottom:1px solid var(--border);padding:10px 0}
.search-bar-inner{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;justify-content:center}
.search-form{display:flex;width:100%;max-width:600px;background:rgba(255,255,255,0.06);border:1px solid var(--border);border-radius:50px;overflow:hidden;transition:border-color var(--transition)}
.search-form:focus-within{border-color:var(--primary)}
.search-form input{flex:1;background:none;border:none;outline:none;padding:10px 20px;color:var(--text-main);font-size:0.95rem}
.search-form input::placeholder{color:var(--text-muted)}
.search-form button{background:var(--gradient-btn);border:none;cursor:pointer;padding:10px 22px;color:#fff;font-size:0.9rem;font-weight:600;transition:opacity var(--transition)}
.search-form button:hover{opacity:0.85}

/* ===== BREADCRUMB ===== */
.breadcrumb{background:rgba(255,255,255,0.03);padding:10px 0;border-bottom:1px solid rgba(255,255,255,0.05)}
.breadcrumb-inner{max-width:1280px;margin:0 auto;padding:0 24px;font-size:0.85rem;color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary-light)}
.breadcrumb span{margin:0 6px}

/* ===== HERO ===== */
.hero{position:relative;min-height:580px;display:flex;align-items:center;overflow:hidden;background:var(--gradient-hero)}
.hero-bg{position:absolute;inset:0;object-fit:cover;width:100%;height:100%;opacity:0.25;filter:blur(2px)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,15,26,0.85) 0%,rgba(232,51,109,0.15) 100%)}
.hero-content{position:relative;z-index:2;max-width:1280px;margin:0 auto;padding:60px 24px;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(232,51,109,0.15);border:1px solid rgba(232,51,109,0.3);border-radius:50px;padding:6px 16px;font-size:0.82rem;color:var(--primary-light);margin-bottom:20px}
.hero-badge::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--primary);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.6;transform:scale(1.3)}}
.hero h1{font-size:clamp(2rem,4vw,3.2rem);font-weight:900;line-height:1.2;margin-bottom:16px}
.hero h1 em{font-style:normal;background:var(--gradient-btn);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.05rem;color:var(--text-muted);margin-bottom:32px;max-width:480px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--gradient-btn);color:#fff;padding:13px 28px;border-radius:50px;font-weight:700;font-size:0.95rem;transition:all var(--transition);box-shadow:0 4px 20px rgba(232,51,109,0.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(232,51,109,0.5);color:#fff}
.btn-outline{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--text-main);padding:12px 28px;border-radius:50px;font-weight:600;font-size:0.95rem;border:1px solid rgba(255,255,255,0.2);transition:all var(--transition)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary-light);background:rgba(232,51,109,0.08)}
.hero-stats{display:flex;gap:32px;margin-top:40px}
.stat-item{text-align:center}
.stat-num{font-size:1.8rem;font-weight:800;background:var(--gradient-btn);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:0.8rem;color:var(--text-muted)}
.hero-visual{position:relative}
.hero-img-main{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-hover)}
.hero-img-main img{width:100%;height:380px;object-fit:cover}
.hero-float-card{position:absolute;bottom:-20px;left:-20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;box-shadow:var(--shadow-card)}
.float-card-title{font-size:0.78rem;color:var(--text-muted);margin-bottom:4px}
.float-card-val{font-size:1.1rem;font-weight:700;color:var(--primary-light)}

/* ===== SECTION ===== */
.section{padding:70px 0}
.section-alt{background:var(--bg-section)}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.section-header{text-align:center;margin-bottom:50px}
.section-tag{display:inline-block;background:rgba(232,51,109,0.12);color:var(--primary-light);border:1px solid rgba(232,51,109,0.25);border-radius:50px;padding:4px 14px;font-size:0.8rem;font-weight:600;margin-bottom:12px;letter-spacing:0.5px}
.section-title{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;margin-bottom:12px}
.section-title em{font-style:normal;color:var(--primary-light)}
.section-desc{color:var(--text-muted);font-size:0.97rem;max-width:560px;margin:0 auto}

/* ===== VIDEO CARDS ===== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.video-card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all var(--transition);cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(232,51,109,0.4)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.4);opacity:0;transition:opacity var(--transition)}
.video-card:hover .play-btn{opacity:1}
.play-icon{width:56px;height:56px;background:rgba(232,51,109,0.9);border-radius:50%;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.play-icon svg{width:22px;height:22px;fill:#fff;margin-left:3px}
.video-badge{position:absolute;top:10px;left:10px;background:var(--primary);color:#fff;font-size:0.72rem;font-weight:700;padding:3px 8px;border-radius:4px}
.video-duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,0.7);color:#fff;font-size:0.75rem;padding:2px 7px;border-radius:4px}
.video-info{padding:14px 16px}
.video-title{font-size:0.93rem;font-weight:600;margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;align-items:center;gap:12px;font-size:0.78rem;color:var(--text-muted)}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-meta svg{width:13px;height:13px;fill:currentColor}

/* ===== PHOTO CARDS ===== */
.photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.photo-card{border-radius:var(--radius);overflow:hidden;position:relative;aspect-ratio:3/4;cursor:pointer}
.photo-card img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}
.photo-card:hover img{transform:scale(1.08)}
.photo-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,0.7) 0%,transparent 60%);opacity:0;transition:opacity var(--transition);display:flex;align-items:flex-end;padding:16px}
.photo-card:hover .photo-overlay{opacity:1}
.photo-overlay-text{color:#fff;font-size:0.88rem;font-weight:600}

/* ===== EXPERT CARDS ===== */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;text-align:center;transition:all var(--transition)}
.expert-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.expert-avatar{width:90px;height:90px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid var(--primary)}
.expert-name{font-size:1.1rem;font-weight:700;margin-bottom:4px}
.expert-role{font-size:0.82rem;color:var(--primary-light);margin-bottom:12px}
.expert-desc{font-size:0.85rem;color:var(--text-muted);margin-bottom:16px;line-height:1.6}
.expert-tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:16px}
.tag{background:rgba(232,51,109,0.1);color:var(--primary-light);border:1px solid rgba(232,51,109,0.2);border-radius:20px;padding:3px 10px;font-size:0.75rem}
.expert-btns{display:flex;gap:8px;justify-content:center}
.btn-sm{padding:7px 16px;border-radius:20px;font-size:0.82rem;font-weight:600;transition:all var(--transition)}
.btn-sm-primary{background:var(--gradient-btn);color:#fff}
.btn-sm-outline{background:transparent;border:1px solid var(--border);color:var(--text-muted)}
.btn-sm-outline:hover{border-color:var(--primary);color:var(--primary-light)}

/* ===== REVIEW CARDS ===== */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.review-card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all var(--transition)}
.review-card:hover{border-color:rgba(232,51,109,0.3);box-shadow:var(--shadow-card)}
.review-stars{color:#ffd700;font-size:1rem;margin-bottom:10px}
.review-text{font-size:0.9rem;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.review-author{display:flex;align-items:center;gap:12px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:var(--gradient-btn);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.9rem;color:#fff;flex-shrink:0}
.review-name{font-weight:600;font-size:0.9rem}
.review-date{font-size:0.78rem;color:var(--text-muted)}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:border-color var(--transition)}
.faq-item.open{border-color:rgba(232,51,109,0.4)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;cursor:pointer;font-weight:600;font-size:0.95rem;background:var(--gradient-card)}
.faq-q:hover{color:var(--primary-light)}
.faq-icon{width:22px;height:22px;border-radius:50%;background:rgba(232,51,109,0.15);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform var(--transition)}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary)}
.faq-a{display:none;padding:0 22px 18px;font-size:0.9rem;color:var(--text-muted);line-height:1.7}
.faq-item.open .faq-a{display:block}

/* ===== PARTNER LOGOS ===== */
.partner-grid{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center}
.partner-logo{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 28px;font-weight:700;font-size:0.9rem;color:var(--text-muted);transition:all var(--transition)}
.partner-logo:hover{border-color:var(--primary);color:var(--primary-light);background:rgba(232,51,109,0.05)}

/* ===== CONTACT ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info-card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px}
.contact-info-card h3{font-size:1.2rem;margin-bottom:20px;color:var(--primary-light)}
.contact-item{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start}
.contact-icon{width:42px;height:42px;background:rgba(232,51,109,0.12);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.1rem}
.contact-label{font-size:0.8rem;color:var(--text-muted);margin-bottom:2px}
.contact-val{font-size:0.92rem;font-weight:500}
.qr-row{display:flex;gap:20px;margin-top:20px}
.qr-item{text-align:center}
.qr-item img{width:100px;height:100px;border-radius:8px;border:1px solid var(--border)}
.qr-label{font-size:0.78rem;color:var(--text-muted);margin-top:6px}

/* ===== HOW-TO GUIDE ===== */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;counter-reset:step}
.step-card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;position:relative;counter-increment:step}
.step-card::before{content:counter(step);position:absolute;top:-14px;left:20px;background:var(--gradient-btn);color:#fff;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:0.85rem}
.step-title{font-weight:700;margin-bottom:8px;font-size:0.95rem}
.step-desc{font-size:0.85rem;color:var(--text-muted);line-height:1.6}

/* ===== SHARE ===== */
.share-btns{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.share-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:50px;font-size:0.88rem;font-weight:600;transition:all var(--transition);cursor:pointer;border:none}
.share-wechat{background:#07c160;color:#fff}
.share-weibo{background:#e6162d;color:#fff}
.share-douyin{background:#010101;color:#fff;border:1px solid #333}
.share-bilibili{background:#00a1d6;color:#fff}
.share-btn:hover{opacity:0.85;transform:translateY(-2px)}

/* ===== FOOTER ===== */
.site-footer{background:var(--bg-card);border-top:1px solid var(--border);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo-wrap{margin-bottom:16px}
.footer-brand p{font-size:0.88rem;color:var(--text-muted);line-height:1.7;max-width:280px}
.footer-col h4{font-size:0.95rem;font-weight:700;margin-bottom:16px;color:var(--text-main)}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:0.87rem;color:var(--text-muted);transition:color var(--transition)}
.footer-col ul li a:hover{color:var(--primary-light)}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:gap;gap:12px}
.footer-copy{font-size:0.83rem;color:var(--text-muted)}
.footer-links{display:flex;gap:16px}
.footer-links a{font-size:0.83rem;color:var(--text-muted)}
.footer-links a:hover{color:var(--primary-light)}
.footer-qr-row{display:flex;gap:20px;margin-top:16px}
.footer-qr-item{text-align:center}
.footer-qr-item img{width:80px;height:80px;border-radius:6px;border:1px solid var(--border)}
.footer-qr-item span{display:block;font-size:0.72rem;color:var(--text-muted);margin-top:4px}

/* ===== PAGE INNER ===== */
.page-hero{background:var(--bg-section);padding:50px 0;border-bottom:1px solid var(--border)}
.page-hero h1{font-size:clamp(1.8rem,3vw,2.5rem);font-weight:800;margin-bottom:12px}
.page-hero p{color:var(--text-muted);font-size:1rem;max-width:600px}
.page-content{padding:60px 0}

/* ===== TABS ===== */
.tab-nav{display:flex;gap:4px;background:var(--bg-card);border:1px solid var(--border);border-radius:50px;padding:4px;width:fit-content;margin:0 auto 40px}
.tab-btn{padding:8px 20px;border-radius:50px;border:none;background:none;color:var(--text-muted);font-size:0.88rem;font-weight:600;cursor:pointer;transition:all var(--transition)}
.tab-btn.active{background:var(--gradient-btn);color:#fff}

/* ===== UTILITY ===== */
.text-center{text-align:center}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.mt-48{margin-top:48px}
.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}
.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}
.gap-8{gap:8px}.gap-16{gap:16px}.gap-24{gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.badge-live{display:inline-flex;align-items:center;gap:5px;background:#e6162d;color:#fff;font-size:0.72rem;font-weight:700;padding:2px 8px;border-radius:4px}
.badge-live::before{content:'';width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.5s infinite}
.highlight-box{background:rgba(232,51,109,0.06);border:1px solid rgba(232,51,109,0.2);border-radius:var(--radius);padding:24px;margin:24px 0}
.divider{height:1px;background:var(--border);margin:40px 0}
.load-more{display:flex;justify-content:center;margin-top:40px}
.btn-load{background:transparent;border:1px solid var(--border);color:var(--text-muted);padding:12px 36px;border-radius:50px;font-size:0.9rem;cursor:pointer;transition:all var(--transition)}
.btn-load:hover{border-color:var(--primary);color:var(--primary-light)}

/* ===== SCROLL TO TOP ===== */
#scrollTop{position:fixed;bottom:30px;right:30px;width:44px;height:44px;background:var(--gradient-btn);border:none;border-radius:50%;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(232,51,109,0.4);z-index:999;transition:all var(--transition)}
#scrollTop:hover{transform:translateY(-3px)}
#scrollTop svg{width:18px;height:18px;fill:#fff}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .hero-content{grid-template-columns:1fr;gap:40px}
  .hero-visual{display:none}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--bg-dark);border-bottom:1px solid var(--border);flex-direction:column;padding:16px;gap:4px}
  .main-nav.open{display:flex}
  .nav-toggle{display:flex;flex-direction:column;justify-content:center}
  .hero{min-height:auto}
  .hero-content{padding:40px 24px}
  .hero h1{font-size:1.8rem}
  .hero-stats{gap:20px}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .photo-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .tab-nav{flex-wrap:wrap;border-radius:var(--radius)}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .photo-grid{grid-template-columns:repeat(2,1fr)}
  .hero-btns{flex-direction:column}
  .share-btns{gap:8px}
}