/* =============================================
   高清无码 - 平台
   主样式文件 | vijck55.cn
   ============================================= */

/* ---- CSS变量 ---- */
:root {
  --primary: #FF6B1A;
  --primary-dark: #E05500;
  --secondary: #1A1A2E;
  --accent: #16213E;
  --dark: #0F0F1A;
  --text: #2C2C3E;
  --text-light: #6B7280;
  --text-muted: #9CA3AF;
  --white: #FFFFFF;
  --bg-light: #F8F9FA;
  --bg-card: #FFFFFF;
  --border: #E5E7EB;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 40px rgba(255,107,26,0.2);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --font-main: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ---- 重置 ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-main);color:var(--text);background:#fff;line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul,ol{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}
input,textarea,select{font-family:inherit}

/* ---- 干扰标签隐藏 ---- */
.i9a8atx0{display:none!important;visibility:hidden!important;position:absolute!important;left:-9999px!important;top:-9999px!important;width:0!important;height:0!important;overflow:hidden!important;opacity:0!important}

/* ---- 公共工具类 ---- */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.container-wide{max-width:1400px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-sm{padding:50px 0}
.text-center{text-align:center}
.text-orange{color:var(--primary)}
.bg-dark{background:var(--dark)}
.bg-light{background:var(--bg-light)}
.hidden{display:none}
.flex{display:flex}
.flex-center{display:flex;align-items:center;justify-content:center}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.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}

/* ---- 标题样式 ---- */
.section-title{font-size:2rem;font-weight:700;color:var(--secondary);margin-bottom:12px;line-height:1.3}
.section-subtitle{font-size:1rem;color:var(--text-light);margin-bottom:40px;max-width:600px}
.section-header{margin-bottom:48px}
.section-header .section-title span{color:var(--primary)}
.title-line{width:50px;height:4px;background:linear-gradient(90deg,var(--primary),var(--primary-dark));border-radius:2px;margin:12px 0 0}
.title-line.center{margin:12px auto 0}

/* ---- 按钮 ---- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:50px;font-size:0.95rem;font-weight:600;transition:var(--transition);cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 4px 15px rgba(255,107,26,0.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(255,107,26,0.45);color:#fff}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--primary);box-shadow:0 4px 15px rgba(0,0,0,0.1)}
.btn-white:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:8px 20px;font-size:0.85rem}
.btn-lg{padding:16px 40px;font-size:1.05rem}

/* ---- 顶部公告条 ---- */
.top-bar{background:linear-gradient(90deg,var(--secondary),var(--accent));color:rgba(255,255,255,0.85);font-size:0.8rem;padding:8px 0;text-align:center}
.top-bar a{color:var(--primary);font-weight:600}

/* ---- 导航栏 ---- */
.navbar{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,0.97);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:0 2px 20px rgba(0,0,0,0.06);transition:var(--transition)}
.navbar.scrolled{box-shadow:0 4px 30px rgba(0,0,0,0.12)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-logo img{height:44px;width:auto}
.nav-logo .logo-text{font-size:1.3rem;font-weight:800;color:var(--secondary)}
.nav-logo .logo-text span{color:var(--primary)}
.nav-logo .logo-favicon{width:32px;height:32px;border-radius:6px;object-fit:cover}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{padding:8px 14px;border-radius:8px;font-size:0.9rem;font-weight:500;color:var(--text);transition:var(--transition);white-space:nowrap}
.nav-menu a:hover,.nav-menu a.active{color:var(--primary);background:rgba(255,107,26,0.08)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search-wrap{position:relative}
.nav-search{display:flex;align-items:center;background:var(--bg-light);border:1.5px solid var(--border);border-radius:50px;overflow:hidden;transition:var(--transition)}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,107,26,0.12)}
.nav-search input{border:none;background:transparent;padding:8px 16px;font-size:0.88rem;width:180px;outline:none;color:var(--text)}
.nav-search button{background:var(--primary);border:none;color:#fff;padding:8px 14px;cursor:pointer;transition:var(--transition)}
.nav-search button:hover{background:var(--primary-dark)}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}

/* ---- 英雄区 ---- */
.hero{position:relative;min-height:620px;display:flex;align-items:center;overflow:hidden;background:var(--dark)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,15,26,0.85) 0%,rgba(26,26,46,0.6) 50%,rgba(15,15,26,0.4) 100%)}
.hero-content{position:relative;z-index:2;max-width:700px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,107,26,0.15);border:1px solid rgba(255,107,26,0.3);color:var(--primary);padding:6px 16px;border-radius:50px;font-size:0.8rem;font-weight:600;margin-bottom:20px;backdrop-filter:blur(4px)}
.hero h1{font-size:3rem;font-weight:800;color:#fff;line-height:1.2;margin-bottom:20px}
.hero h1 span{color:var(--primary)}
.hero p{font-size:1.1rem;color:rgba(255,255,255,0.8);margin-bottom:32px;line-height:1.7}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;margin-top:48px;flex-wrap:wrap}
.hero-stat{text-align:center}
.hero-stat .num{font-size:2rem;font-weight:800;color:var(--primary)}
.hero-stat .label{font-size:0.8rem;color:rgba(255,255,255,0.6);margin-top:4px}
.hero-scroll{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;color:rgba(255,255,255,0.5);font-size:0.75rem;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* ---- 视频卡片 ---- */
.video-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.video-play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.3);opacity:0;transition:var(--transition)}
.video-card:hover .video-play-btn{opacity:1}
.play-icon{width:60px;height:60px;background:rgba(255,107,26,0.9);border-radius:50%;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px);transform:scale(0.8);transition:var(--transition)}
.video-card:hover .play-icon{transform:scale(1)}
.play-icon svg{width:24px;height:24px;fill:#fff;margin-left:4px}
.video-duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,0.75);color:#fff;font-size:0.75rem;padding:3px 8px;border-radius:4px;font-weight:600}
.video-tag{position:absolute;top:10px;left:10px;background:var(--primary);color:#fff;font-size:0.7rem;padding:3px 10px;border-radius:50px;font-weight:600}
.video-info{padding:16px}
.video-title{font-size:0.95rem;font-weight:600;color:var(--text);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;justify-content:space-between;font-size:0.8rem;color:var(--text-muted)}
.video-stats{display:flex;gap:12px}
.video-stats span{display:flex;align-items:center;gap:4px}
.video-author{font-weight:500;color:var(--text-light)}

/* ---- 特色卡片 ---- */
.feature-card{background:#fff;border-radius:var(--radius);padding:32px 24px;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border);text-align:center}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--primary)}
.feature-icon{width:64px;height:64px;background:linear-gradient(135deg,rgba(255,107,26,0.12),rgba(224,85,0,0.08));border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:2rem;transition:var(--transition)}
.feature-card:hover .feature-icon{background:linear-gradient(135deg,var(--primary),var(--primary-dark));transform:scale(1.1)}
.feature-card:hover .feature-icon svg{fill:#fff}
.feature-card h3{font-size:1.1rem;font-weight:700;margin-bottom:12px;color:var(--secondary)}
.feature-card p{font-size:0.88rem;color:var(--text-light);line-height:1.6}

/* ---- 专家卡片 ---- */
.expert-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}
.expert-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.expert-img{position:relative;height:260px;overflow:hidden}
.expert-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.expert-card:hover .expert-img img{transform:scale(1.05)}
.expert-badge{position:absolute;top:16px;right:16px;background:var(--primary);color:#fff;font-size:0.72rem;padding:4px 12px;border-radius:50px;font-weight:600}
.expert-info{padding:20px}
.expert-name{font-size:1.1rem;font-weight:700;color:var(--secondary);margin-bottom:4px}
.expert-role{font-size:0.85rem;color:var(--primary);font-weight:600;margin-bottom:12px}
.expert-desc{font-size:0.85rem;color:var(--text-light);line-height:1.6;margin-bottom:16px}
.expert-awards{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.expert-award{background:var(--bg-light);color:var(--text);font-size:0.75rem;padding:4px 10px;border-radius:50px;border:1px solid var(--border)}
.expert-actions{display:flex;gap:10px}

/* ---- 评价卡片 ---- */
.review-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border:1px solid var(--border);transition:var(--transition)}
.review-card:hover{box-shadow:var(--shadow-hover);border-color:rgba(255,107,26,0.2)}
.review-stars{display:flex;gap:3px;margin-bottom:12px}
.star{color:#F59E0B;font-size:1rem}
.review-text{font-size:0.9rem;color:var(--text);line-height:1.7;margin-bottom:16px;font-style:italic}
.review-author{display:flex;align-items:center;gap:12px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:0.9rem;flex-shrink:0}
.review-name{font-weight:600;font-size:0.9rem;color:var(--secondary)}
.review-date{font-size:0.78rem;color:var(--text-muted)}

/* ---- FAQ ---- */
.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:12px;transition:var(--transition)}
.faq-item.active{border-color:var(--primary);box-shadow:0 4px 15px rgba(255,107,26,0.1)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;cursor:pointer;background:#fff;transition:var(--transition)}
.faq-question:hover{background:rgba(255,107,26,0.03)}
.faq-question h4{font-size:0.95rem;font-weight:600;color:var(--text);flex:1}
.faq-icon{width:28px;height:28px;background:var(--bg-light);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:var(--transition);color:var(--primary);font-size:1.2rem;font-weight:300}
.faq-item.active .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.35s ease,padding 0.35s ease}
.faq-item.active .faq-answer{max-height:300px}
.faq-answer p{padding:0 24px 18px;font-size:0.88rem;color:var(--text-light);line-height:1.7}

/* ---- 合作品牌 ---- */
.partner-logo{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:20px 30px;display:flex;align-items:center;justify-content:center;transition:var(--transition);height:80px}
.partner-logo:hover{border-color:var(--primary);box-shadow:0 4px 15px rgba(255,107,26,0.1);transform:translateY(-3px)}
.partner-logo span{font-size:1.1rem;font-weight:700;color:var(--text-light);letter-spacing:1px;transition:var(--transition)}
.partner-logo:hover span{color:var(--primary)}

/* ---- 联系区 ---- */
.contact-card{background:linear-gradient(135deg,var(--secondary),var(--accent));border-radius:var(--radius-lg);padding:40px;color:#fff}
.contact-card h3{font-size:1.4rem;font-weight:700;margin-bottom:8px}
.contact-card p{color:rgba(255,255,255,0.7);margin-bottom:24px;font-size:0.9rem}
.contact-info-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px}
.contact-info-item .icon{width:36px;height:36px;background:rgba(255,107,26,0.2);border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1rem}
.contact-info-item .text{font-size:0.88rem;color:rgba(255,255,255,0.8);line-height:1.5}
.contact-info-item .text strong{color:#fff;display:block;font-size:0.9rem}
.qr-group{display:flex;gap:20px;flex-wrap:wrap}
.qr-item{text-align:center}
.qr-item img{width:100px;height:100px;border-radius:8px;border:3px solid rgba(255,255,255,0.2)}
.qr-item p{font-size:0.75rem;color:rgba(255,255,255,0.6);margin-top:8px}

/* ---- 社交分享 ---- */
.share-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.share-label{font-size:0.88rem;color:var(--text-light);font-weight:500}
.share-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:50px;font-size:0.82rem;font-weight:600;cursor:pointer;transition:var(--transition);border:1.5px solid var(--border)}
.share-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.1)}
.share-wechat{color:#07C160;border-color:#07C160}.share-wechat:hover{background:#07C160;color:#fff}
.share-weibo{color:#E6162D;border-color:#E6162D}.share-weibo:hover{background:#E6162D;color:#fff}
.share-douyin{color:#010101;border-color:#010101}.share-douyin:hover{background:#010101;color:#fff}
.share-bilibili{color:#00A1D6;border-color:#00A1D6}.share-bilibili:hover{background:#00A1D6;color:#fff}

/* ---- 搜索框 ---- */
.search-modal{position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,0.7);display:flex;align-items:flex-start;justify-content:center;padding-top:100px;opacity:0;pointer-events:none;transition:opacity 0.3s}
.search-modal.active{opacity:1;pointer-events:all}
.search-modal-inner{background:#fff;border-radius:var(--radius-lg);padding:32px;width:100%;max-width:600px;box-shadow:0 20px 60px rgba(0,0,0,0.3)}
.search-modal-inner h3{font-size:1.2rem;font-weight:700;margin-bottom:20px;color:var(--secondary)}
.search-form{display:flex;gap:12px}
.search-form input{flex:1;border:2px solid var(--border);border-radius:50px;padding:12px 20px;font-size:1rem;outline:none;transition:var(--transition)}
.search-form input:focus{border-color:var(--primary)}
.search-form button{background:var(--primary);color:#fff;border:none;border-radius:50px;padding:12px 24px;font-size:0.95rem;font-weight:600;cursor:pointer;transition:var(--transition)}
.search-form button:hover{background:var(--primary-dark)}
.search-close{float:right;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-muted);margin-top:-8px}
.search-tip{font-size:0.82rem;color:var(--text-muted);margin-top:12px}

/* ---- 面包屑 ---- */
.breadcrumb{padding:16px 0;border-bottom:1px solid var(--border);background:#fff}
.breadcrumb-list{display:flex;align-items:center;gap:8px;font-size:0.85rem;flex-wrap:wrap}
.breadcrumb-list a{color:var(--text-light);transition:var(--transition)}
.breadcrumb-list a:hover{color:var(--primary)}
.breadcrumb-list .sep{color:var(--text-muted)}
.breadcrumb-list .current{color:var(--primary);font-weight:500}

/* ---- 页面头部 ---- */
.page-hero{background:linear-gradient(135deg,var(--secondary) 0%,var(--accent) 100%);padding:60px 0;color:#fff;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;top:-50%;right:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(255,107,26,0.15) 0%,transparent 70%);pointer-events:none}
.page-hero h1{font-size:2.2rem;font-weight:800;margin-bottom:12px}
.page-hero h1 span{color:var(--primary)}
.page-hero p{color:rgba(255,255,255,0.75);font-size:1rem;max-width:600px}

/* ---- 标签云 ---- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{background:var(--bg-light);color:var(--text-light);font-size:0.8rem;padding:5px 14px;border-radius:50px;border:1px solid var(--border);transition:var(--transition);cursor:pointer}
.tag:hover,.tag.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ---- 分页 ---- */
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:48px}
.page-btn{width:40px;height:40px;border-radius:8px;border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:0.9rem;font-weight:500;color:var(--text);transition:var(--transition);cursor:pointer}
.page-btn:hover,.page-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ---- AI赋能区 ---- */
.ai-section{background:linear-gradient(135deg,var(--dark) 0%,var(--secondary) 100%);position:relative;overflow:hidden}
.ai-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}
.ai-card{background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);border-radius:var(--radius);padding:28px;backdrop-filter:blur(8px);transition:var(--transition)}
.ai-card:hover{background:rgba(255,107,26,0.1);border-color:rgba(255,107,26,0.3);transform:translateY(-4px)}
.ai-card-icon{font-size:2.5rem;margin-bottom:16px}
.ai-card h3{font-size:1.05rem;font-weight:700;color:#fff;margin-bottom:10px}
.ai-card p{font-size:0.85rem;color:rgba(255,255,255,0.6);line-height:1.6}

/* ---- 统计数字区 ---- */
.stats-section{background:linear-gradient(135deg,var(--primary),var(--primary-dark))}
.stat-item{text-align:center;padding:40px 20px;color:#fff}
.stat-num{font-size:3rem;font-weight:800;display:block;line-height:1}
.stat-label{font-size:0.9rem;opacity:0.85;margin-top:8px}

/* ---- 社区区 ---- */
.community-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);display:flex;flex-direction:column}
.community-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.community-img{height:180px;overflow:hidden}
.community-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s}
.community-card:hover .community-img img{transform:scale(1.05)}
.community-body{padding:20px;flex:1;display:flex;flex-direction:column}
.community-body h3{font-size:1rem;font-weight:700;color:var(--secondary);margin-bottom:8px}
.community-body p{font-size:0.85rem;color:var(--text-light);line-height:1.6;flex:1;margin-bottom:16px}
.community-footer{display:flex;align-items:center;justify-content:space-between;font-size:0.8rem;color:var(--text-muted)}

/* ---- 页脚 ---- */
.footer{background:var(--dark);color:rgba(255,255,255,0.7);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand .logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo img{height:40px}
.footer-brand .logo span{font-size:1.2rem;font-weight:800;color:#fff}
.footer-brand p{font-size:0.85rem;line-height:1.7;margin-bottom:20px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:36px;height:36px;background:rgba(255,255,255,0.08);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:0.9rem;transition:var(--transition)}
.footer-social a:hover{background:var(--primary);color:#fff}
.footer-col h4{font-size:0.95rem;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:0.85rem;color:rgba(255,255,255,0.6);transition:var(--transition)}
.footer-col ul li a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:24px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:0.82rem}
.footer-bottom a{color:rgba(255,255,255,0.5);transition:var(--transition)}
.footer-bottom a:hover{color:var(--primary)}
.footer-update{color:rgba(255,255,255,0.4);font-size:0.78rem}

/* ---- 视频模态框 ---- */
.video-modal{position:fixed;inset:0;z-index:9998;background:rgba(0,0,0,0.9);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity 0.3s}
.video-modal.active{opacity:1;pointer-events:all}
.video-modal-inner{background:#000;border-radius:var(--radius);overflow:hidden;width:90%;max-width:900px;position:relative}
.video-modal-close{position:absolute;top:12px;right:12px;z-index:10;background:rgba(0,0,0,0.6);color:#fff;border:none;border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.2rem;transition:var(--transition)}
.video-modal-close:hover{background:var(--primary)}
.video-placeholder{aspect-ratio:16/9;background:var(--dark);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:16px;color:rgba(255,255,255,0.5)}
.video-placeholder .big-play{width:80px;height:80px;background:rgba(255,107,26,0.8);border-radius:50%;display:flex;align-items:center;justify-content:center}
.video-placeholder .big-play svg{width:36px;height:36px;fill:#fff;margin-left:6px}

/* ---- 响应式 ---- */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:2.4rem}
}
@media(max-width:768px){
  .nav-menu{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:16px;border-bottom:1px solid var(--border);box-shadow:0 8px 30px rgba(0,0,0,0.1)}
  .nav-menu.open{display:flex}
  .nav-toggle{display:flex}
  .nav-search input{width:120px}
  .hero{min-height:500px}
  .hero h1{font-size:1.8rem}
  .hero p{font-size:0.95rem}
  .hero-stats{gap:24px}
  .hero-stat .num{font-size:1.5rem}
  .section{padding:50px 0}
  .section-title{font-size:1.6rem}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .page-hero h1{font-size:1.6rem}
  .stats-section .grid-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .hero h1{font-size:1.5rem}
  .btn-lg{padding:12px 28px;font-size:0.95rem}
  .hero-btns{flex-direction:column}
  .hero-btns .btn{width:100%;justify-content:center}
}

/* ---- 动画 ---- */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
.animate-fadeInUp{animation:fadeInUp 0.6s ease forwards}
.animate-fadeIn{animation:fadeIn 0.5s ease forwards}

/* ---- 懒加载占位 ---- */
.lazy-img{background:linear-gradient(90deg,#f0f0f0 25%,#e8e8e8 50%,#f0f0f0 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---- 滚动条 ---- */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:#f1f1f1}
::-webkit-scrollbar-thumb{background:var(--primary);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--primary-dark)}

/* ---- 选中文字 ---- */
::selection{background:rgba(255,107,26,0.2);color:var(--primary)}

/* ---- 滚动动画 ---- */
.anim-on-scroll{opacity:0;transform:translateY(28px);transition:opacity 0.65s ease,transform 0.65s ease}
.anim-on-scroll.visible{opacity:1;transform:translateY(0)}

/* ---- 统计数字区补充 ---- */
.stats-section .grid-4{display:grid;grid-template-columns:repeat(4,1fr)}
.stats-section .stat-item{padding:32px 20px}

/* ---- 导航搜索触发 ---- */
.search-trigger{cursor:pointer}