/* 菠萝视频 - 复古电影胶片风格主样式表 */
/* 全局重置与基础 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Georgia','Noto Serif SC','SimSun',serif;background-color:#1a1208;color:#d4c5a0;line-height:1.8;overflow-x:hidden}
a{color:#c8a96e;text-decoration:none;transition:color .3s}
a:hover{color:#f0d080}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}

/* 胶片颗粒纹理覆盖层 */
body::before{content:'';position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:9999;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");opacity:.35}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(15,10,5,.95);border-bottom:1px solid #5a3e1e;backdrop-filter:blur(8px)}
.header-inner{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:68px}
.site-logo{display:flex;align-items:center;gap:12px;font-size:1.5rem;font-weight:700;color:#f0d080;letter-spacing:.05em;text-shadow:0 0 20px rgba(200,169,110,.4)}
.site-logo span{font-size:.85rem;color:#a08060;font-weight:400;letter-spacing:.1em}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{padding:8px 16px;font-size:.9rem;color:#c8a96e;letter-spacing:.05em;position:relative;transition:color .3s}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:2px;background:#f0d080;transition:width .3s}
.main-nav a:hover{color:#f0d080}
.main-nav a:hover::after{width:70%}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:#c8a96e;transition:all .3s}

/* 搜索框 */
.search-bar{background:#0d0a05;border-bottom:1px solid #3a2a10;padding:10px 24px}
.search-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:12px}
.search-wrap{position:relative;flex:1;max-width:600px;margin:0 auto}
.search-wrap input{width:100%;padding:10px 44px 10px 16px;background:#1e1508;border:1px solid #5a3e1e;border-radius:4px;color:#d4c5a0;font-family:inherit;font-size:.9rem;outline:none;transition:border-color .3s}
.search-wrap input:focus{border-color:#c8a96e}
.search-wrap input::placeholder{color:#7a6040}
.search-btn{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;color:#c8a96e;font-size:1.1rem}

/* 首屏Banner */
.hero-banner{position:relative;height:100vh;min-height:600px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.45) sepia(.4)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,7,2,.3) 0%,rgba(10,7,2,.6) 60%,rgba(10,7,2,.95) 100%)}
.film-strip-top,.film-strip-bottom{position:absolute;left:0;right:0;height:40px;background:repeating-linear-gradient(90deg,#0a0702 0,#0a0702 30px,transparent 30px,transparent 50px);z-index:2}
.film-strip-top{top:0;border-bottom:3px solid #2a1e0a}
.film-strip-bottom{bottom:0;border-top:3px solid #2a1e0a}
.film-strip-top::before,.film-strip-bottom::before{content:'';position:absolute;top:50%;left:0;right:0;height:20px;transform:translateY(-50%);background:repeating-linear-gradient(90deg,transparent 0,transparent 8px,#0a0702 8px,#0a0702 12px,transparent 12px,transparent 50px)}
.hero-content{position:relative;z-index:3;text-align:center;padding:0 24px;max-width:900px}
.hero-tag{display:inline-block;padding:4px 16px;border:1px solid #c8a96e;color:#c8a96e;font-size:.8rem;letter-spacing:.2em;margin-bottom:24px;text-transform:uppercase}
.hero-title{font-size:clamp(2.2rem,5vw,4rem);color:#f5ead0;line-height:1.2;margin-bottom:20px;text-shadow:0 2px 20px rgba(0,0,0,.8)}
.hero-title em{font-style:normal;color:#f0d080}
.hero-subtitle{font-size:clamp(1rem,2vw,1.25rem);color:#b0a080;margin-bottom:40px;line-height:1.6}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{padding:14px 36px;background:linear-gradient(135deg,#c8a96e,#a07040);color:#1a1208;font-size:1rem;font-weight:700;border:none;cursor:pointer;letter-spacing:.1em;transition:all .3s;clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%)}
.btn-primary:hover{background:linear-gradient(135deg,#f0d080,#c8a96e);transform:translateY(-2px)}
.btn-secondary{padding:14px 36px;background:transparent;color:#c8a96e;font-size:1rem;border:1px solid #c8a96e;cursor:pointer;letter-spacing:.1em;transition:all .3s;clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%)}
.btn-secondary:hover{background:rgba(200,169,110,.1);color:#f0d080;border-color:#f0d080}

/* 通用区块 */
.section{padding:80px 24px}
.section-inner{max-width:1280px;margin:0 auto}
.section-header{text-align:center;margin-bottom:56px}
.section-tag{display:inline-block;font-size:.75rem;letter-spacing:.25em;color:#c8a96e;text-transform:uppercase;margin-bottom:12px;padding:3px 12px;border:1px solid #5a3e1e}
.section-title{font-size:clamp(1.6rem,3vw,2.4rem);color:#f5ead0;margin-bottom:16px;line-height:1.3}
.section-desc{color:#a09070;font-size:1rem;max-width:600px;margin:0 auto}

/* 视频卡片网格 */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{position:relative;background:#120e08;border:1px solid #3a2a10;overflow:hidden;cursor:pointer;transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(200,169,110,.15)}
.video-thumb{position:relative;aspect-ratio:3/4;overflow:hidden}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s,filter .5s;filter:sepia(.3) brightness(.9)}
.video-card:hover .video-thumb img{transform:scale(1.05);filter:sepia(.1) brightness(1)}
/* 胶片颗粒悬停效果 */
.video-thumb::before{content:'';position:absolute;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='0.08'/%3E%3C/svg%3E");opacity:0;transition:opacity .3s;z-index:2;pointer-events:none}
.video-card:hover .video-thumb::before{opacity:1;animation:filmGrain .08s steps(1) infinite}
/* 老电影光晕效果 */
.video-thumb::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(255,220,150,.12) 0%,transparent 60%),radial-gradient(ellipse at 70% 80%,rgba(200,100,50,.08) 0%,transparent 50%);opacity:0;transition:opacity .4s;z-index:3;pointer-events:none}
.video-card:hover .video-thumb::after{opacity:1}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(.8);width:56px;height:56px;background:rgba(200,169,110,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .3s;z-index:4}
.play-btn::after{content:'';width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #1a1208;margin-left:4px}
.video-card:hover .play-btn{opacity:1;transform:translate(-50%,-50%) scale(1)}
.video-info{padding:16px}
.video-cat{font-size:.75rem;color:#c8a96e;letter-spacing:.1em;margin-bottom:6px}
.video-title{font-size:1rem;color:#e8d8b0;margin-bottom:10px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:16px;font-size:.8rem;color:#7a6040}
.video-meta span{display:flex;align-items:center;gap:4px}
@keyframes filmGrain{0%{background-position:0 0}25%{background-position:10px 5px}50%{background-position:-5px 10px}75%{background-position:5px -5px}100%{background-position:-10px 0}}

/* 品牌故事模块 */
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.story-img{position:relative}
.story-img img{width:100%;filter:sepia(.3) brightness(.85)}
.story-img::before{content:'';position:absolute;inset:-8px;border:1px solid #5a3e1e;z-index:-1}
.story-content h3{font-size:1.6rem;color:#f5ead0;margin-bottom:20px;line-height:1.3}
.story-content p{color:#a09070;margin-bottom:16px;line-height:1.9}
.story-tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.story-tag{padding:4px 12px;border:1px solid #5a3e1e;color:#c8a96e;font-size:.8rem;letter-spacing:.05em}

/* 影像作品墙 */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:4px}
.gallery-item{position:relative;overflow:hidden;aspect-ratio:1}
.gallery-item img{width:100%;height:100%;object-fit:cover;filter:sepia(.4) brightness(.8);transition:all .4s}
.gallery-item:hover img{filter:sepia(.1) brightness(1);transform:scale(1.05)}
.gallery-item:first-child{grid-column:span 2;grid-row:span 2}

/* AI模块 */
.ai-section{background:linear-gradient(135deg,#0d0a05 0%,#1a1208 50%,#0d0a05 100%);border-top:1px solid #3a2a10;border-bottom:1px solid #3a2a10}
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.ai-tools{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.ai-tool-card{padding:20px;background:#120e08;border:1px solid #3a2a10;transition:border-color .3s}
.ai-tool-card:hover{border-color:#c8a96e}
.ai-tool-icon{font-size:1.8rem;margin-bottom:12px}
.ai-tool-name{font-size:.95rem;color:#e8d8b0;margin-bottom:6px}
.ai-tool-desc{font-size:.8rem;color:#7a6040;line-height:1.5}

/* 达人模块 */
.creator-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:24px}
.creator-card{text-align:center;padding:24px 16px;background:#120e08;border:1px solid #3a2a10;transition:all .3s}
.creator-card:hover{border-color:#c8a96e;transform:translateY(-4px)}
.creator-avatar{width:80px;height:80px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:2px solid #5a3e1e;filter:sepia(.3)}
.creator-avatar img{width:100%;height:100%;object-fit:cover}
.creator-name{font-size:1rem;color:#e8d8b0;margin-bottom:6px}
.creator-role{font-size:.8rem;color:#c8a96e;margin-bottom:10px}
.creator-desc{font-size:.8rem;color:#7a6040;line-height:1.5}

/* 用户评价 */
.review-section{background:#0d0a05}
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.review-card{padding:28px;background:#120e08;border:1px solid #3a2a10;position:relative}
.review-card::before{content:'\201C';position:absolute;top:16px;right:20px;font-size:4rem;color:#3a2a10;font-family:Georgia,serif;line-height:1}
.review-stars{color:#c8a96e;font-size:.9rem;margin-bottom:12px}
.review-text{color:#a09070;font-size:.9rem;line-height:1.8;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:#3a2a10;display:flex;align-items:center;justify-content:center;color:#c8a96e;font-size:.9rem;font-weight:700}
.review-name{font-size:.9rem;color:#e8d8b0}
.review-date{font-size:.75rem;color:#5a4030}

/* 合作伙伴 */
.partner-grid{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;margin-bottom:56px}
.partner-item{padding:16px 32px;background:#120e08;border:1px solid #3a2a10;color:#7a6040;font-size:.9rem;letter-spacing:.05em;transition:all .3s}
.partner-item:hover{border-color:#c8a96e;color:#c8a96e}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid #3a2a10}
.faq-question{padding:20px 0;display:flex;justify-content:space-between;align-items:center;cursor:pointer;color:#e8d8b0;font-size:1rem;transition:color .3s}
.faq-question:hover{color:#f0d080}
.faq-icon{color:#c8a96e;font-size:1.2rem;transition:transform .3s;flex-shrink:0}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s}
.faq-answer p{color:#a09070;font-size:.9rem;line-height:1.8;padding-bottom:20px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-answer{max-height:300px}

/* 联系模块 */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.contact-card{padding:32px 24px;background:#120e08;border:1px solid #3a2a10;text-align:center}
.contact-icon{font-size:2rem;margin-bottom:16px;color:#c8a96e}
.contact-title{font-size:1.1rem;color:#e8d8b0;margin-bottom:12px}
.contact-info{font-size:.9rem;color:#a09070;line-height:1.7}
.qr-placeholder{width:100px;height:100px;background:#1e1508;border:1px solid #5a3e1e;margin:12px auto 0;display:flex;align-items:center;justify-content:center;font-size:.7rem;color:#5a4030;text-align:center;line-height:1.4}

/* 页脚 */
.site-footer{background:#0a0702;border-top:1px solid #3a2a10;padding:48px 24px 24px}
.footer-inner{max-width:1280px;margin:0 auto}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:40px}
.footer-brand h3{font-size:1.3rem;color:#f0d080;margin-bottom:12px}
.footer-brand p{font-size:.85rem;color:#7a6040;line-height:1.7}
.footer-col h4{font-size:.9rem;color:#c8a96e;letter-spacing:.1em;margin-bottom:16px;text-transform:uppercase}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:.85rem;color:#7a6040;transition:color .3s}
.footer-col ul li a:hover{color:#c8a96e}
.footer-bottom{border-top:1px solid #1e1508;padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:gap;gap:16px}
.footer-copy{font-size:.8rem;color:#5a4030}
.footer-links{display:flex;gap:16px}
.footer-links a{font-size:.8rem;color:#5a4030;transition:color .3s}
.footer-links a:hover{color:#c8a96e}
.footer-icp{font-size:.8rem;color:#3a2a10}

/* 内页通用 */
.page-hero{padding:100px 24px 60px;background:linear-gradient(180deg,#0a0702 0%,#120e08 100%);border-bottom:1px solid #3a2a10;text-align:center}
.page-hero h1{font-size:clamp(1.8rem,4vw,3rem);color:#f5ead0;margin-bottom:16px}
.page-hero p{color:#a09070;max-width:600px;margin:0 auto}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.8rem;color:#5a4030;margin-bottom:24px;justify-content:center}
.breadcrumb a{color:#7a6040}
.breadcrumb span{color:#3a2a10}

/* 内页文章列表 */
.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:32px}
.article-card{background:#120e08;border:1px solid #3a2a10;overflow:hidden;transition:all .3s}
.article-card:hover{border-color:#c8a96e;transform:translateY(-4px)}
.article-thumb{aspect-ratio:16/9;overflow:hidden}
.article-thumb img{width:100%;height:100%;object-fit:cover;filter:sepia(.3) brightness(.85);transition:all .4s}
.article-card:hover .article-thumb img{filter:sepia(.1) brightness(1);transform:scale(1.05)}
.article-body{padding:20px}
.article-cat{font-size:.75rem;color:#c8a96e;letter-spacing:.1em;margin-bottom:8px}
.article-title{font-size:1.05rem;color:#e8d8b0;margin-bottom:10px;line-height:1.4}
.article-excerpt{font-size:.85rem;color:#7a6040;line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.article-footer{padding:12px 20px;border-top:1px solid #1e1508;display:flex;justify-content:space-between;font-size:.8rem;color:#5a4030}

/* 响应式 */
@media(max-width:1024px){
.story-grid,.ai-grid{grid-template-columns:1fr}
.footer-top{grid-template-columns:1fr 1fr}
.contact-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#0f0a05;flex-direction:column;padding:16px 0;border-bottom:1px solid #3a2a10}
.main-nav.open{display:flex}
.nav-toggle{display:flex}
.gallery-grid{grid-template-columns:repeat(2,1fr)}
.gallery-item:first-child{grid-column:span 1;grid-row:span 1}
.footer-top{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.footer-bottom{flex-direction:column;text-align:center}
.hero-btns{flex-direction:column;align-items:center}
}
@media(max-width:480px){
.video-grid{grid-template-columns:1fr}
.ai-tools{grid-template-columns:1fr}
.creator-grid{grid-template-columns:repeat(2,1fr)}
}