/* ============================================
   小小绘 影视写真传媒 - 原创样式表
   配色方案：暖珊瑚 #E8654A + 奶油白 #FFF8F0 + 深炭灰 #2D2926
   ============================================ */

/* === 基础重置 === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#2D2926;background:#FFF8F0;line-height:1.7}
a{color:#E8654A;text-decoration:none;transition:color .3s}
a:hover{color:#C4472E}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === 顶部导航 === */
.site-header{background:#2D2926;position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:42px;width:auto;border-radius:6px}
.logo-wrap span{font-size:1.4rem;font-weight:700;color:#FFF8F0;letter-spacing:1px}
.main-nav{display:flex;gap:6px}
.main-nav a{color:#FFF8F0;padding:8px 14px;border-radius:6px;font-size:.9rem;transition:background .3s,color .3s}
.main-nav a:hover,.main-nav a.active{background:#E8654A;color:#fff}
.mobile-menu-btn{display:none;background:none;border:none;color:#FFF8F0;font-size:1.6rem;cursor:pointer}

/* === 搜索栏 === */
.search-bar{background:#3A3532;padding:12px 0}
.search-bar form{display:flex;max-width:560px;margin:0 auto}
.search-bar input{flex:1;padding:10px 16px;border:2px solid #E8654A;border-right:none;border-radius:25px 0 0 25px;background:#FFF8F0;font-size:.95rem;outline:none;color:#2D2926}
.search-bar input::placeholder{color:#9E9590}
.search-bar button{padding:10px 24px;background:#E8654A;color:#fff;border:2px solid #E8654A;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-bar button:hover{background:#C4472E}

/* === Hero 横幅 === */
.hero-section{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-section .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;padding:0 20px}
.hero-content h1{font-size:2.8rem;font-weight:800;margin-bottom:12px;text-shadow:0 3px 12px rgba(0,0,0,.4)}
.hero-content h1 em{font-style:normal;color:#FFB4B4}
.hero-content p{font-size:1.15rem;max-width:680px;margin:0 auto 24px;opacity:.92;text-shadow:0 1px 6px rgba(0,0,0,.3)}
.hero-tags{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.hero-tags span{background:rgba(232,101,74,.85);padding:6px 16px;border-radius:20px;font-size:.85rem}

/* === 通用区块标题 === */
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.9rem;font-weight:700;color:#2D2926;margin-bottom:8px}
.section-title h2 em{font-style:normal;color:#E8654A}
.section-title .bar{display:inline-block;width:50px;height:4px;background:linear-gradient(90deg,#E8654A,#FFB4B4);border-radius:2px;margin-bottom:10px}
.section-title p{color:#7A706A;font-size:1rem;max-width:600px;margin:0 auto}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:20px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 18px rgba(45,41,38,.08);transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 10px 30px rgba(45,41,38,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;cursor:pointer}
.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(1.06)}
.video-thumb .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:56px;height:56px;background:rgba(232,101,74,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s;pointer-events:none}
.video-thumb .play-btn::after{content:"";display:block;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-thumb .tag{position:absolute;top:10px;left:10px;background:#E8654A;color:#fff;padding:3px 10px;border-radius:12px;font-size:.75rem;font-weight:600}
.video-thumb .duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-info{padding:14px 16px}
.video-info h3{font-size:.95rem;font-weight:600;color:#2D2926;margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:14px;color:#9E9590;font-size:.8rem}
.video-meta span{display:flex;align-items:center;gap:3px}

/* === 分区模块 === */
.section-block{padding:60px 0}
.section-block:nth-child(even){background:#fff}
.section-block:nth-child(odd){background:#FFF8F0}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.expert-card{background:#fff;border-radius:12px;padding:28px 20px;text-align:center;box-shadow:0 4px 16px rgba(45,41,38,.06);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 #FFB4B4}
.expert-card h4{font-size:1.05rem;color:#2D2926;margin-bottom:4px}
.expert-card .role{color:#E8654A;font-size:.85rem;margin-bottom:8px}
.expert-card p{color:#7A706A;font-size:.85rem;line-height:1.6;margin-bottom:14px}
.expert-card .btn-group{display:flex;gap:8px;justify-content:center}
.btn-sm{padding:6px 16px;border-radius:20px;font-size:.8rem;border:1px solid #E8654A;color:#E8654A;transition:all .3s;cursor:pointer;background:transparent}
.btn-sm:hover{background:#E8654A;color:#fff}
.btn-sm.filled{background:#E8654A;color:#fff}
.btn-sm.filled:hover{background:#C4472E}

/* === 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(45,41,38,.05)}
.faq-item .faq-q{padding:16px 20px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:#2D2926;transition:background .3s}
.faq-item .faq-q:hover{background:#FFF0EB}
.faq-item .faq-q::after{content:"+";font-size:1.3rem;color:#E8654A;transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;color:#7A706A;font-size:.9rem;line-height:1.7}
.faq-item.open .faq-a{max-height:300px;padding:0 20px 16px}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 3px 14px rgba(45,41,38,.06)}
.review-card .stars{color:#F5A623;font-size:1rem;margin-bottom:8px;letter-spacing:2px}
.review-card p{color:#4A4340;font-size:.9rem;line-height:1.7;margin-bottom:12px;font-style:italic}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer .avatar{width:36px;height:36px;border-radius:50%;background:#FFB4B4;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.85rem}
.review-card .reviewer .name{font-weight:600;font-size:.85rem;color:#2D2926}
.review-card .reviewer .date{font-size:.75rem;color:#9E9590}

/* === 关于我们 === */
.about-section{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about-text h3{font-size:1.4rem;color:#2D2926;margin-bottom:12px}
.about-text p{color:#5A5350;font-size:.95rem;line-height:1.8;margin-bottom:14px}
.about-img{border-radius:14px;overflow:hidden;box-shadow:0 8px 28px rgba(45,41,38,.1)}

/* === 合作品牌 === */
.brand-wall{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center}
.brand-wall .brand-item{background:#fff;padding:16px 28px;border-radius:10px;box-shadow:0 2px 10px rgba(45,41,38,.06);font-size:1rem;font-weight:600;color:#7A706A;transition:all .3s}
.brand-wall .brand-item:hover{color:#E8654A;box-shadow:0 4px 16px rgba(232,101,74,.15)}

/* === How-To 指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.howto-step{text-align:center;padding:24px 16px}
.howto-step .step-num{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#E8654A,#FFB4B4);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;margin:0 auto 12px}
.howto-step h4{font-size:1rem;color:#2D2926;margin-bottom:6px}
.howto-step p{font-size:.85rem;color:#7A706A}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-card{background:#fff;border-radius:12px;padding:28px;text-align:center;box-shadow:0 3px 14px rgba(45,41,38,.06)}
.contact-card .icon{font-size:2rem;margin-bottom:10px}
.contact-card h4{font-size:1.05rem;color:#2D2926;margin-bottom:8px}
.contact-card p{color:#7A706A;font-size:.88rem;line-height:1.6}
.contact-card img{max-width:140px;margin:10px auto 0;border-radius:8px}

/* === 社交分享 === */
.share-bar{display:flex;gap:12px;justify-content:center;padding:20px 0}
.share-bar a{display:flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;font-size:.85rem;color:#fff;transition:opacity .3s}
.share-bar a:hover{opacity:.85;color:#fff}
.share-bar .wx{background:#07C160}
.share-bar .wb{background:#E6162D}
.share-bar .dy{background:#161823}
.share-bar .bili{background:#00A1D6}

/* === 页脚 === */
.site-footer{background:#2D2926;color:#B5AFAA;padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer-col h4{color:#FFF8F0;font-size:1rem;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:"";position:absolute;bottom:0;left:0;width:30px;height:2px;background:#E8654A}
.footer-col p,.footer-col a{color:#B5AFAA;font-size:.85rem;line-height:1.8;display:block}
.footer-col a:hover{color:#E8654A}
.footer-col .qr-wrap{display:flex;gap:14px;margin-top:10px}
.footer-col .qr-wrap img{width:100px;border-radius:6px}
.footer-col .qr-wrap span{display:block;text-align:center;font-size:.75rem;margin-top:4px}
.footer-bottom{border-top:1px solid #4A4340;padding-top:16px;text-align:center;font-size:.8rem;color:#7A706A}
.footer-bottom a{color:#E8654A}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:.85rem;color:#9E9590}
.breadcrumb a{color:#E8654A}
.breadcrumb span{margin:0 6px;color:#CCC5BF}

/* === 内页通用 === */
.page-hero{background:#2D2926;padding:50px 0;text-align:center;color:#FFF8F0}
.page-hero h1{font-size:2rem;font-weight:700;margin-bottom:8px}
.page-hero p{color:#B5AFAA;font-size:1rem}
.page-content{padding:50px 0}

/* === AI赋能模块 === */
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ai-card{background:linear-gradient(135deg,#2D2926,#3A3532);border-radius:12px;padding:28px;color:#FFF8F0;transition:transform .3s}
.ai-card:hover{transform:translateY(-4px)}
.ai-card .ai-icon{font-size:2.2rem;margin-bottom:12px}
.ai-card h4{font-size:1.05rem;margin-bottom:8px;color:#FFB4B4}
.ai-card p{font-size:.88rem;color:#B5AFAA;line-height:1.7}

/* === 社区功能 === */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.community-card{background:#fff;border-radius:12px;padding:24px;border-left:4px solid #E8654A;box-shadow:0 3px 14px rgba(45,41,38,.06);transition:transform .3s}
.community-card:hover{transform:translateY(-3px)}
.community-card h4{font-size:1rem;color:#2D2926;margin-bottom:6px}
.community-card p{font-size:.88rem;color:#7A706A;line-height:1.6}

/* === 响应式 === */
@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:1fr 1fr}
  .about-section{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .ai-features{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;flex-direction:column;padding:10px 0}
  .main-nav.show{display:flex}
  .mobile-menu-btn{display:block}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-content h1{font-size:1.8rem}
  .hero-section{height:380px}
  .community-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}
  .hero-section{height:300px}
  .hero-content h1{font-size:1.5rem}
}