/* ============================================
   抖阴 - 动物写真视频社区 原创CSS
   配色：白虎金银风格
   主背景 #0a0c14 | 次背景 #141828
   强调色 #e8c547 金虎黄 | #c0c0c0 银白
   ============================================ */

/* === Reset & Base === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB',Arial,sans-serif;background:#0a0c14;color:#f0f0f5;line-height:1.7;overflow-x:hidden}
a{color:#e8c547;text-decoration:none;transition:color .3s}
a:hover{color:#f5d76e}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === 干扰标签隐藏 === */
.jammer-wrap{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}

/* === Header === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(10,12,20,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(232,197,71,.15);transition:all .3s}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo-area{display:flex;align-items:center;gap:10px}
.logo-area img{height:42px;width:auto}
.logo-area .brand-name{font-size:1.4rem;font-weight:700;background:linear-gradient(135deg,#e8c547,#c0c0c0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* === Navigation === */
.main-nav ul{display:flex;gap:28px;align-items:center}
.main-nav a{color:#c0c0c0;font-size:.95rem;font-weight:500;padding:6px 0;position:relative;transition:color .3s}
.main-nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(90deg,#e8c547,#c0c0c0);transition:width .3s}
.main-nav a:hover,.main-nav a.active{color:#e8c547}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.mobile-toggle span{width:24px;height:2px;background:#e8c547;transition:all .3s}

/* === Hero Banner === */
.hero-banner{position:relative;height:85vh;min-height:550px;overflow:hidden;margin-top:66px}
.hero-banner .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}
.hero-banner .hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,12,20,.4) 0%,rgba(10,12,20,.85) 100%)}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:0 20px}
.hero-content h1{font-size:3.2rem;font-weight:800;margin-bottom:16px;background:linear-gradient(135deg,#e8c547 0%,#f5d76e 50%,#c0c0c0 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:none}
.hero-content .hero-subtitle{font-size:1.3rem;color:#c0c0c0;margin-bottom:12px;max-width:700px}
.hero-content .hero-desc{font-size:1rem;color:#9a9ab0;max-width:600px;margin-bottom:30px}
.hero-search{display:flex;gap:0;max-width:520px;width:100%}
.hero-search input{flex:1;padding:14px 20px;border:2px solid rgba(232,197,71,.3);border-right:none;border-radius:30px 0 0 30px;background:rgba(20,24,40,.8);color:#f0f0f5;font-size:1rem;outline:none;transition:border-color .3s}
.hero-search input:focus{border-color:#e8c547}
.hero-search button{padding:14px 28px;background:linear-gradient(135deg,#e8c547,#d4a830);color:#0a0c14;border:none;border-radius:0 30px 30px 0;font-weight:700;font-size:1rem;cursor:pointer;transition:all .3s}
.hero-search button:hover{background:linear-gradient(135deg,#f5d76e,#e8c547)}

/* === Section Common === */
.section{padding:70px 0}
.section-header{text-align:center;margin-bottom:50px}
.section-header h2{font-size:2.2rem;font-weight:700;margin-bottom:12px;background:linear-gradient(135deg,#e8c547,#c0c0c0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-header p{color:#9a9ab0;font-size:1.05rem;max-width:650px;margin:0 auto}
.section-alt{background:#141828}

/* === Video Card Grid === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.video-card{background:#141828;border-radius:12px;overflow:hidden;border:1px solid rgba(232,197,71,.1);transition:all .4s;cursor:pointer}
.section-alt .video-card{background:#0a0c14}
.video-card:hover{transform:translateY(-6px);border-color:rgba(232,197,71,.4);box-shadow:0 12px 30px rgba(232,197,71,.12)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.video-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:56px;height:56px;background:rgba(232,197,71,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .4s;z-index:2}
.video-play-btn::after{content:'';width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #0a0c14;margin-left:3px}
.video-card:hover .video-play-btn{transform:translate(-50%,-50%) scale(1)}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(10,12,20,.85);color:#e8c547;padding:2px 8px;border-radius:4px;font-size:.8rem;font-weight:600;z-index:2}
.video-info{padding:14px}
.video-info h3{font-size:1rem;font-weight:600;color:#f0f0f5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info .video-meta{display:flex;justify-content:space-between;color:#9a9ab0;font-size:.82rem}

/* === Feature Cards (动物传媒) === */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:#141828;border-radius:14px;padding:32px 24px;text-align:center;border:1px solid rgba(232,197,71,.08);transition:all .4s}
.feature-card:hover{border-color:rgba(232,197,71,.35);transform:translateY(-5px);box-shadow:0 8px 25px rgba(232,197,71,.1)}
.feature-icon{width:64px;height:64px;margin:0 auto 18px;background:linear-gradient(135deg,rgba(232,197,71,.15),rgba(192,192,192,.1));border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.feature-card h3{font-size:1.15rem;color:#e8c547;margin-bottom:10px}
.feature-card p{color:#9a9ab0;font-size:.92rem;line-height:1.6}

/* === Community Grid === */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.community-card{background:#141828;border-radius:12px;overflow:hidden;border:1px solid rgba(192,192,192,.1);transition:all .4s}
.community-card:hover{border-color:rgba(232,197,71,.3);transform:translateY(-4px)}
.community-card .card-img{height:180px;overflow:hidden}
.community-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.community-card:hover .card-img img{transform:scale(1.06)}
.community-card .card-body{padding:18px}
.community-card h3{font-size:1.05rem;color:#e8c547;margin-bottom:8px}
.community-card p{color:#9a9ab0;font-size:.9rem}

/* === Expert Section === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#141828;border-radius:14px;padding:28px 20px;text-align:center;border:1px solid rgba(232,197,71,.08);transition:all .4s}
.expert-card:hover{border-color:rgba(232,197,71,.3);transform:translateY(-4px)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid rgba(232,197,71,.3)}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h3{font-size:1.1rem;color:#f0f0f5;margin-bottom:4px}
.expert-card .expert-title{color:#e8c547;font-size:.88rem;margin-bottom:8px}
.expert-card p{color:#9a9ab0;font-size:.85rem}

/* === AI Section === */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:#0a0c14;border-radius:14px;padding:28px;border:1px solid rgba(232,197,71,.1);transition:all .4s;position:relative;overflow:hidden}
.ai-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,#e8c547,#c0c0c0);transform:scaleX(0);transition:transform .4s;transform-origin:left}
.ai-card:hover::before{transform:scaleX(1)}
.ai-card:hover{border-color:rgba(232,197,71,.3)}
.ai-card h3{font-size:1.1rem;color:#e8c547;margin-bottom:10px}
.ai-card p{color:#9a9ab0;font-size:.92rem}

/* === Brand Wall === */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;padding:20px 0}
.brand-item{background:#141828;border-radius:10px;padding:18px 30px;border:1px solid rgba(192,192,192,.1);color:#c0c0c0;font-size:1rem;font-weight:600;transition:all .3s}
.brand-item:hover{border-color:#e8c547;color:#e8c547}

/* === How-To === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.howto-step{background:#141828;border-radius:14px;padding:30px 22px;text-align:center;border:1px solid rgba(232,197,71,.08);position:relative;counter-increment:step}
.howto-step::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:linear-gradient(135deg,#e8c547,#d4a830);color:#0a0c14;font-weight:800;font-size:1.2rem;border-radius:50%;margin:0 auto 16px}
.howto-step h3{font-size:1.05rem;color:#f0f0f5;margin-bottom:8px}
.howto-step p{color:#9a9ab0;font-size:.88rem}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#141828;border-radius:10px;margin-bottom:12px;border:1px solid rgba(232,197,71,.08);overflow:hidden}
.faq-question{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#f0f0f5;transition:color .3s}
.faq-question:hover{color:#e8c547}
.faq-question .faq-toggle{font-size:1.4rem;color:#e8c547;transition:transform .3s}
.faq-item.active .faq-toggle{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-answer p{padding-bottom:18px;color:#9a9ab0;font-size:.95rem}
.faq-item.active .faq-answer{max-height:300px}

/* === Reviews === */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{background:#141828;border-radius:12px;padding:24px;border:1px solid rgba(192,192,192,.08)}
.review-stars{color:#e8c547;font-size:1rem;margin-bottom:10px;letter-spacing:2px}
.review-card .review-text{color:#c0c0c0;font-size:.92rem;margin-bottom:14px;font-style:italic}
.review-card .reviewer{color:#9a9ab0;font-size:.85rem}

/* === Contact === */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info h3{font-size:1.3rem;color:#e8c547;margin-bottom:16px}
.contact-info .info-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;color:#c0c0c0;font-size:.95rem}
.contact-info .info-item strong{color:#f0f0f5;min-width:70px}
.contact-qr{display:flex;gap:24px}
.contact-qr .qr-item{text-align:center}
.contact-qr .qr-item img{width:140px;height:140px;border-radius:8px;border:2px solid rgba(232,197,71,.2)}
.contact-qr .qr-item p{color:#9a9ab0;font-size:.85rem;margin-top:8px}

/* === Trust Section === */
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.trust-card{background:#0a0c14;border-radius:12px;padding:24px;border:1px solid rgba(232,197,71,.1);text-align:center}
.trust-card h3{color:#e8c547;font-size:1.1rem;margin-bottom:10px}
.trust-card p{color:#9a9ab0;font-size:.9rem}

/* === Stats === */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:40px 0}
.stat-item{text-align:center}
.stat-item .stat-num{font-size:2.4rem;font-weight:800;background:linear-gradient(135deg,#e8c547,#c0c0c0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-item .stat-label{color:#9a9ab0;font-size:.9rem;margin-top:4px}

/* === Footer === */
.site-footer{background:#080a12;border-top:1px solid rgba(232,197,71,.1);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .footer-logo img{height:36px}
.footer-brand .footer-logo span{font-size:1.2rem;font-weight:700;color:#e8c547}
.footer-brand p{color:#9a9ab0;font-size:.9rem}
.footer-col h4{color:#e8c547;font-size:1rem;margin-bottom:14px;font-weight:600}
.footer-col a{display:block;color:#9a9ab0;font-size:.9rem;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#e8c547}
.footer-bottom{border-top:1px solid rgba(232,197,71,.08);padding:20px 0;text-align:center}
.footer-bottom p{color:#9a9ab0;font-size:.82rem;margin-bottom:4px}
.footer-bottom a{color:#9a9ab0}
.footer-bottom a:hover{color:#e8c547}

/* === Breadcrumb === */
.breadcrumb{padding:80px 0 10px;font-size:.88rem}
.breadcrumb a{color:#9a9ab0}
.breadcrumb a:hover{color:#e8c547}
.breadcrumb span{color:#e8c547}

/* === Inner Page === */
.inner-hero{padding:100px 0 40px;text-align:center;background:#141828}
.inner-hero h1{font-size:2.4rem;font-weight:700;background:linear-gradient(135deg,#e8c547,#c0c0c0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:10px}
.inner-hero p{color:#9a9ab0;font-size:1.05rem;max-width:600px;margin:0 auto}
.article-content{padding:40px 0;max-width:900px;margin:0 auto}
.article-content h2{font-size:1.6rem;color:#e8c547;margin:30px 0 14px}
.article-content h3{font-size:1.25rem;color:#c0c0c0;margin:24px 0 10px}
.article-content p{color:#c0c0c0;margin-bottom:16px;font-size:1rem;line-height:1.8}
.update-info{text-align:center;color:#9a9ab0;font-size:.85rem;padding:20px 0;border-top:1px solid rgba(232,197,71,.08);margin-top:30px}

/* === Scroll Animation === */
.fade-in{opacity:0;transform:translateY(30px);transition:all .7s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* === Responsive === */
@media(max-width:1024px){
.video-grid{grid-template-columns:repeat(3,1fr)}
.feature-grid,.ai-grid,.community-grid,.review-grid,.trust-grid{grid-template-columns:repeat(2,1fr)}
.expert-grid,.howto-steps{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
.stats-bar{grid-template-columns:repeat(2,1fr);gap:16px}
}
@media(max-width:768px){
.mobile-toggle{display:flex}
.main-nav{position:fixed;top:66px;left:0;width:100%;background:rgba(10,12,20,.98);padding:20px;transform:translateY(-100%);opacity:0;transition:all .4s;pointer-events:none}
.main-nav.active{transform:translateY(0);opacity:1;pointer-events:all}
.main-nav ul{flex-direction:column;gap:16px}
.hero-content h1{font-size:2rem}
.hero-content .hero-subtitle{font-size:1.05rem}
.video-grid{grid-template-columns:repeat(2,1fr)}
.feature-grid,.ai-grid,.community-grid,.review-grid,.trust-grid{grid-template-columns:1fr}
.expert-grid,.howto-steps{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.section-header h2{font-size:1.7rem}
.hero-banner{height:70vh;min-height:450px}
}
@media(max-width:480px){
.video-grid{grid-template-columns:1fr}
.hero-content h1{font-size:1.6rem}
.stats-bar{grid-template-columns:1fr}
}