/* ============================================
   小蓝视频 - 动物写真视频社区 原创样式表
   配色：暖金 #D4A24E / 深棕 #2A1810 / 森林绿 #1B3A2D / 米白 #FFF8F0
   ============================================ */

/* === Reset & Base === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','WenQuanYi Micro Hei',sans-serif;color:#3D2B1F;background:#FFF8F0;line-height:1.7;overflow-x:hidden}
a{color:#D4A24E;text-decoration:none;transition:color .3s}
a:hover{color:#B8860B}
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;color:#2A1810}

/* === 干扰标签隐藏 === */
div[id^="dx"],div[class^="dx"]{position:absolute!important;width:1px!important;height:1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important;padding:0!important;margin:-1px!important}

/* === Container === */
.site-wrap{max-width:1340px;margin:0 auto;padding:0 20px}

/* === Header / Nav === */
.site-header{background:linear-gradient(135deg,#2A1810 0%,#1B3A2D 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;max-width:1340px;margin:0 auto;padding:10px 20px}
.brand-logo{display:flex;align-items:center;gap:10px}
.brand-logo img{height:46px;width:auto;border-radius:6px}
.brand-logo span{font-size:1.5rem;font-weight:800;color:#D4A24E;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{color:#E8DCC8;font-size:.9rem;padding:8px 14px;border-radius:6px;transition:all .3s;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{background:rgba(212,162,78,.2);color:#D4A24E}
.nav-toggle{display:none;background:none;border:none;color:#D4A24E;font-size:1.6rem;cursor:pointer;padding:6px}

/* === Hero Banner === */
.hero-banner{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.55)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;padding:30px}
.hero-content h1{font-size:2.8rem;margin-bottom:12px;text-shadow:0 3px 12px rgba(0,0,0,.6)}
.hero-content h1 em{font-style:normal;color:#D4A24E}
.hero-content p{font-size:1.15rem;max-width:700px;margin:0 auto 20px;opacity:.92;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:16px}
.hero-tags span{background:rgba(212,162,78,.25);color:#FFD700;padding:5px 16px;border-radius:20px;font-size:.85rem;backdrop-filter:blur(4px);border:1px solid rgba(212,162,78,.3)}

/* === Section Common === */
.section-block{padding:50px 0}
.section-block:nth-child(even){background:#F5EDE0}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}
.section-header h2{font-size:1.65rem;color:#2A1810;position:relative;padding-left:16px}
.section-header h2::before{content:'';position:absolute;left:0;top:4px;bottom:4px;width:4px;background:linear-gradient(180deg,#D4A24E,#B8860B);border-radius:2px}
.section-header .more-link{color:#D4A24E;font-size:.9rem;white-space:nowrap}
.section-header .more-link:hover{color:#B8860B}

/* === Video Card Grid === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 3px 16px rgba(42,24,16,.08);transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 10px 30px rgba(42,24,16,.15)}
.card-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#2A1810}
.card-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .card-thumb img{transform:scale(1.06)}
.play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(0,0,0,.35)}
.video-card:hover .play-btn{opacity:1}
.play-btn i{width:52px;height:52px;background:rgba(212,162,78,.9);border-radius:50%;display:flex;align-items:center;justify-content:center}
.play-btn i::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.card-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;font-size:.75rem;padding:2px 8px;border-radius:4px}
.card-stats{position:absolute;bottom:8px;left:8px;display:flex;gap:10px}
.card-stats span{color:#fff;font-size:.75rem;background:rgba(0,0,0,.55);padding:2px 7px;border-radius:4px}
.card-body{padding:14px 16px}
.card-body h3{font-size:.95rem;color:#2A1810;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.card-body p{font-size:.82rem;color:#8B7355;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;font-size:.78rem;color:#A0896E}
.card-tag{display:inline-block;background:linear-gradient(135deg,#D4A24E,#B8860B);color:#fff;font-size:.72rem;padding:3px 10px;border-radius:12px;margin-top:6px}

/* === Expert Section === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#fff;border-radius:12px;padding:28px 20px;text-align:center;box-shadow:0 3px 16px rgba(42,24,16,.08);transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:3px solid #D4A24E}
.expert-card h4{font-size:1rem;color:#2A1810;margin-bottom:4px}
.expert-card .title{color:#D4A24E;font-size:.82rem;margin-bottom:8px}
.expert-card p{font-size:.8rem;color:#8B7355;line-height:1.6}

/* === AI Section === */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:linear-gradient(145deg,#2A1810,#1B3A2D);border-radius:14px;padding:30px 24px;color:#E8DCC8;transition:transform .3s}
.ai-card:hover{transform:translateY(-4px)}
.ai-card .icon{width:56px;height:56px;background:linear-gradient(135deg,#D4A24E,#B8860B);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:16px}
.ai-card h4{font-size:1.1rem;color:#D4A24E;margin-bottom:10px}
.ai-card p{font-size:.85rem;line-height:1.7;opacity:.85}

/* === Community Section === */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.community-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 3px 16px rgba(42,24,16,.08);transition:transform .3s}
.community-card:hover{transform:translateY(-4px)}
.community-card .card-icon{height:140px;display:flex;align-items:center;justify-content:center;font-size:3rem;background:linear-gradient(135deg,#1B3A2D,#2A1810)}
.community-card .card-info{padding:18px}
.community-card h4{font-size:1rem;color:#2A1810;margin-bottom:6px}
.community-card p{font-size:.82rem;color:#8B7355;line-height:1.6}

/* === FAQ Section === */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:14px;overflow:hidden;box-shadow:0 2px 10px rgba(42,24,16,.06)}
.faq-item summary{padding:16px 22px;font-size:.95rem;font-weight:600;color:#2A1810;cursor:pointer;display:flex;align-items:center;justify-content:space-between;transition:background .3s}
.faq-item summary:hover{background:#F5EDE0}
.faq-item summary::after{content:'+';font-size:1.3rem;color:#D4A24E;transition:transform .3s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-answer{padding:0 22px 18px;font-size:.88rem;color:#5C4A3A;line-height:1.8}

/* === Breadcrumb === */
.breadcrumb{padding:14px 0;font-size:.82rem;color:#A0896E}
.breadcrumb a{color:#D4A24E}
.breadcrumb span{margin:0 6px;color:#C4B49A}

/* === Page Layout (Inner Pages) === */
.page-header{background:linear-gradient(135deg,#2A1810,#1B3A2D);padding:50px 0;text-align:center;color:#E8DCC8}
.page-header h1{font-size:2rem;color:#D4A24E;margin-bottom:8px}
.page-header p{font-size:.95rem;opacity:.85;max-width:600px;margin:0 auto}
.page-layout{display:grid;grid-template-columns:1fr 300px;gap:30px;padding:40px 0}
.page-layout article{min-width:0}
.page-layout article h2{font-size:1.3rem;color:#2A1810;margin:24px 0 12px;padding-left:14px;border-left:3px solid #D4A24E}
.page-layout article p{font-size:.9rem;color:#5C4A3A;line-height:1.8;margin-bottom:14px}
.sidebar{position:sticky;top:80px;align-self:start}
.sidebar-box{background:#fff;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 3px 12px rgba(42,24,16,.06)}
.sidebar-box h3{font-size:1rem;color:#2A1810;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid #D4A24E}
.sidebar-box ul li{padding:8px 0;border-bottom:1px solid #F0E6D6}
.sidebar-box ul li:last-child{border:none}
.sidebar-box ul li a{color:#5C4A3A;font-size:.85rem}
.sidebar-box ul li a:hover{color:#D4A24E}

/* === Footer === */
.site-footer{background:linear-gradient(135deg,#2A1810 0%,#1B3A2D 100%);color:#C4B49A;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;max-width:1340px;margin:0 auto;padding:0 20px}
.footer-col h4{color:#D4A24E;font-size:1rem;margin-bottom:16px}
.footer-col p{font-size:.85rem;line-height:1.8;color:#A0896E}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{color:#A0896E;font-size:.85rem}
.footer-col ul li a:hover{color:#D4A24E}
.footer-col .qr-img{width:120px;border-radius:8px;margin-top:8px}
.footer-bottom{text-align:center;padding:20px;margin-top:40px;border-top:1px solid rgba(212,162,78,.15);font-size:.8rem;color:#8B7355}
.footer-bottom a{color:#D4A24E}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-logo img{height:36px;border-radius:4px}
.footer-logo span{font-size:1.2rem;font-weight:700;color:#D4A24E}

/* === Responsive === */
@media(max-width:1024px){
    .video-grid{grid-template-columns:repeat(3,1fr)}
    .expert-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
    .nav-toggle{display:block}
    .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#2A1810;flex-direction:column;padding:10px;gap:2px;box-shadow:0 8px 20px rgba(0,0,0,.3)}
    .main-nav.open{display:flex}
    .main-nav a{padding:12px 16px;width:100%}
    .hero-banner{height:360px}
    .hero-content h1{font-size:1.8rem}
    .video-grid{grid-template-columns:repeat(2,1fr);gap:14px}
    .ai-grid{grid-template-columns:1fr}
    .community-grid{grid-template-columns:1fr}
    .expert-grid{grid-template-columns:repeat(2,1fr)}
    .page-layout{grid-template-columns:1fr}
    .sidebar{position:static}
    .footer-grid{grid-template-columns:1fr}
    .section-block{padding:30px 0}
}
@media(max-width:480px){
    .video-grid{grid-template-columns:1fr}
    .expert-grid{grid-template-columns:1fr}
    .hero-banner{height:280px}
    .hero-content h1{font-size:1.4rem}
}