/* ========================================
   老司机 - 动物写真与视频社区 全站样式
   kkvwk68.cn
   ======================================== */
/* === 基础重置 === */
*,*::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","Helvetica Neue",Arial,sans-serif;color:#2d3436;line-height:1.7;background:#f0f5f0;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:color .3s ease}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
/* === 干扰标签隐藏 === */
.b3pezs{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}
/* === 导航栏 === */
.site-header{background:linear-gradient(135deg,#1a5e1a 0%,#2d8a2d 50%,#1a5e1a 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.nav-wrap{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:64px}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{width:40px;height:40px;border-radius:50%;border:2px solid rgba(255,255,255,.3)}
.nav-logo span{font-size:1.3rem;font-weight:700;color:#fff;letter-spacing:1px}
.nav-menu{display:flex;gap:6px}
.nav-menu a{color:rgba(255,255,255,.85);padding:8px 16px;border-radius:6px;font-size:.9rem;font-weight:500;transition:all .3s}
.nav-menu a:hover,.nav-menu a.active{background:rgba(255,255,255,.15);color:#fff}
.mobile-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}
/* === 搜索栏 === */
.search-bar{background:linear-gradient(180deg,#2d8a2d 0%,#3da33d 100%);padding:16px 0}
.search-wrap{max-width:720px;margin:0 auto;padding:0 20px;display:flex;gap:0}
.search-wrap input{flex:1;padding:12px 20px;border:2px solid #4db84d;border-right:none;border-radius:30px 0 0 30px;font-size:1rem;outline:none;background:#fff;transition:border-color .3s}
.search-wrap input:focus{border-color:#fff}
.search-wrap button{padding:12px 28px;background:#ffd700;color:#1a5e1a;border:2px solid #ffd700;border-radius:0 30px 30px 0;font-size:1rem;font-weight:700;cursor:pointer;transition:all .3s}
.search-wrap button:hover{background:#ffed4a;border-color:#ffed4a}
/* === Banner === */
.hero-banner{position:relative;height:520px;overflow:hidden;background:#1a5e1a}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.7}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,94,26,.4) 0%,rgba(26,94,26,.8) 100%);display:flex;align-items:center;justify-content:center}
.hero-content{text-align:center;color:#fff;max-width:800px;padding:0 20px}
.hero-content h1{font-size:2.8rem;font-weight:800;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,.3)}
.hero-content h2{font-size:1.3rem;font-weight:400;opacity:.9;line-height:1.8;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.hero-tags span{background:rgba(255,255,255,.15);backdrop-filter:blur(4px);padding:6px 16px;border-radius:20px;font-size:.85rem;border:1px solid rgba(255,255,255,.2)}
/* === 通用区块 === */
.section-block{padding:60px 0}
.section-block:nth-child(even){background:#e8f5e8}
.container{max-width:1280px;margin:0 auto;padding:0 20px}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;font-weight:700;color:#1a5e1a;margin-bottom:8px}
.section-title h3{font-size:1.1rem;color:#666;font-weight:400}
/* === 视频卡片 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(0,0,0,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#e0e0e0}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.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(26,94,26,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s;pointer-events:none}
.play-btn::after{content:'';width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1)}
.video-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-info{padding:14px}
.video-info h4{font-size:.95rem;font-weight:600;color:#2d3436;margin-bottom:6px;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:#999}
.video-meta span{display:flex;align-items:center;gap:3px}
.video-tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.video-tags span{background:#e8f5e8;color:#2d8a2d;padding:2px 10px;border-radius:12px;font-size:.72rem}
/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.06);transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-avatar{width:80px;height:80px;border-radius:50%;margin:0 auto 12px;background:linear-gradient(135deg,#2d8a2d,#4db84d);display:flex;align-items:center;justify-content:center;font-size:2rem;color:#fff}
.expert-card h4{font-size:1rem;font-weight:700;color:#1a5e1a;margin-bottom:4px}
.expert-card .role{font-size:.85rem;color:#666;margin-bottom:8px}
.expert-card p{font-size:.82rem;color:#888;line-height:1.5}
.expert-btns{display:flex;gap:8px;justify-content:center;margin-top:12px}
.expert-btns a{padding:6px 14px;border-radius:20px;font-size:.78rem;font-weight:500;transition:all .3s}
.btn-contact{background:#1a5e1a;color:#fff}
.btn-contact:hover{background:#2d8a2d}
.btn-works{border:1px solid #1a5e1a;color:#1a5e1a}
.btn-works:hover{background:#1a5e1a;color:#fff}
/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.faq-question{padding:18px 24px;font-weight:600;color:#1a5e1a;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.faq-question:hover{background:#f0f9f0}
.faq-question::after{content:'+';font-size:1.4rem;font-weight:300;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 ease;color:#555;line-height:1.8}
.faq-item.active .faq-answer{padding:0 24px 18px;max-height:500px}
/* === 用户评价 === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#4db84d,#2d8a2d);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.review-name{font-weight:600;color:#2d3436;font-size:.95rem}
.review-date{font-size:.78rem;color:#999}
.review-stars{color:#ffd700;margin-bottom:8px;font-size:.9rem}
.review-text{font-size:.9rem;color:#555;line-height:1.7}
/* === 社区板块 === */
.community-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.community-card{background:#fff;border-radius:12px;padding:20px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.06);transition:all .3s;border:2px solid transparent}
.community-card:hover{border-color:#2d8a2d;transform:translateY(-3px)}
.community-icon{font-size:2.2rem;margin-bottom:10px}
.community-card h4{font-size:.95rem;font-weight:600;color:#1a5e1a;margin-bottom:4px}
.community-card p{font-size:.8rem;color:#888}
/* === AI赋能 === */
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:linear-gradient(135deg,#fff 0%,#f0f9f0 100%);border-radius:14px;padding:30px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.06);border:1px solid #e0f0e0;transition:all .3s}
.ai-card:hover{box-shadow:0 8px 24px rgba(45,138,45,.15);border-color:#4db84d}
.ai-icon{font-size:2.5rem;margin-bottom:14px}
.ai-card h4{font-size:1.1rem;font-weight:700;color:#1a5e1a;margin-bottom:8px}
.ai-card p{font-size:.88rem;color:#666;line-height:1.6}
/* === 合作品牌 === */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:20px;margin-bottom:30px}
.brand-item{background:#fff;padding:16px 28px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.06);font-weight:600;color:#1a5e1a;font-size:.95rem;transition:all .3s}
.brand-item:hover{box-shadow:0 4px 16px rgba(45,138,45,.15);transform:translateY(-2px)}
/* === HowTo指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:1000px;margin:0 auto}
.howto-step{text-align:center;padding:24px 16px}
.step-num{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#1a5e1a,#2d8a2d);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;margin:0 auto 14px}
.howto-step h4{font-size:1rem;font-weight:600;color:#2d3436;margin-bottom:6px}
.howto-step p{font-size:.85rem;color:#888;line-height:1.5}
/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.contact-info{background:#fff;border-radius:14px;padding:30px;box-shadow:0 4px 16px rgba(0,0,0,.06)}
.contact-info h4{font-size:1.1rem;font-weight:700;color:#1a5e1a;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid #e8f5e8}
.contact-info p{font-size:.9rem;color:#555;margin-bottom:8px;line-height:1.6}
/* === 页脚 === */
.site-footer{background:linear-gradient(135deg,#0d3d0d 0%,#1a5e1a 100%);color:rgba(255,255,255,.8);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;max-width:1280px;margin:0 auto;padding:0 20px}
.footer-grid h4{color:#ffd700;font-size:1rem;margin-bottom:16px;font-weight:600}
.footer-grid p,.footer-grid a{font-size:.88rem;color:rgba(255,255,255,.7);line-height:1.8;display:block;transition:color .3s}
.footer-grid a:hover{color:#ffd700}
.footer-about{font-size:.88rem;line-height:1.7}
.footer-about .logo-row{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-about .logo-row img{width:40px;height:40px;border-radius:50%}
.footer-about .logo-row span{font-size:1.2rem;font-weight:700;color:#fff}
.footer-qr{display:flex;gap:16px;margin-top:12px}
.footer-qr .qr-box{text-align:center}
.footer-qr .qr-img{width:110px;border-radius:8px;border:2px solid rgba(255,255,255,.1)}
.footer-qr .qr-box p{font-size:.75rem;margin-top:6px;color:rgba(255,255,255,.6)}
.footer-bottom{text-align:center;padding:20px 0;margin-top:40px;border-top:1px solid rgba(255,255,255,.1);font-size:.82rem;color:rgba(255,255,255,.5)}
/* === 社交分享 === */
.share-section{background:#f0f9f0;padding:30px 0;text-align:center}
.share-section h3{font-size:1.1rem;color:#1a5e1a;margin-bottom:14px}
.share-btns{display:flex;justify-content:center;gap:12px}
.share-btns a{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:24px;font-size:.85rem;font-weight:500;color:#fff;transition:all .3s}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#111}
.share-bilibili{background:#00a1d6}
.share-btns a:hover{opacity:.85;transform:translateY(-2px)}
/* === 面包屑 === */
.breadcrumb{padding:14px 0;background:#e8f5e8}
.breadcrumb .container{display:flex;align-items:center;gap:8px;font-size:.85rem;color:#666}
.breadcrumb a{color:#2d8a2d}
.breadcrumb a:hover{text-decoration:underline}
/* === 内页通用 === */
.page-hero{background:linear-gradient(135deg,#1a5e1a,#2d8a2d);padding:50px 0;text-align:center;color:#fff}
.page-hero h1{font-size:2.2rem;font-weight:800;margin-bottom:8px}
.page-hero p{font-size:1rem;opacity:.85}
.page-content{padding:40px 0}
/* === 视频弹窗 === */
.video-modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:9999;align-items:center;justify-content:center}
.video-modal.active{display:flex}
.video-modal-inner{background:#000;border-radius:12px;width:90%;max-width:800px;aspect-ratio:16/9;position:relative;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem}
.video-modal-close{position:absolute;top:-40px;right:0;color:#fff;font-size:2rem;cursor:pointer;background:none;border:none}
/* === 响应式 === */
@media(max-width:1024px){
.video-grid{grid-template-columns:repeat(3,1fr)}
.expert-grid{grid-template-columns:repeat(2,1fr)}
.community-grid{grid-template-columns:repeat(2,1fr)}
.ai-features{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
.howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.nav-menu{display:none;position:absolute;top:64px;left:0;right:0;background:#1a5e1a;flex-direction:column;padding:16px;gap:4px;box-shadow:0 4px 12px rgba(0,0,0,.2)}
.nav-menu.active{display:flex}
.mobile-toggle{display:block}
.hero-banner{height:380px}
.hero-content h1{font-size:1.8rem}
.hero-content h2{font-size:1rem}
.video-grid{grid-template-columns:repeat(2,1fr)}
.review-grid{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.section-block{padding:40px 0}
.expert-grid{grid-template-columns:1fr}
.ai-features{grid-template-columns:1fr}
.howto-steps{grid-template-columns:1fr}
}
@media(max-width:480px){
.video-grid{grid-template-columns:1fr}
.community-grid{grid-template-columns:1fr}
.hero-banner{height:300px}
.hero-content h1{font-size:1.5rem}
}