/* ============================================================
   萝莉岛植物视频社区 - 主样式文件
   bdwowx.cn | 外部CSS | 植物视频 | 植物视频教程
   ============================================================ */

/* ---- 重置 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: 'PingFang SC','Microsoft YaHei','Hiragino Sans GB',sans-serif; color: #333; background: #fff; line-height: 1.7; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
a:hover { color: #1a7a3c; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- 干扰标签隐藏（绝对定位移出视口，不影响布局） ---- */
#nz7k2m4 { position:absolute!important;left:-9999px!important;top:-9999px!important;width:1px!important;height:1px!important;overflow:hidden!important;pointer-events:none!important; }
.seo-noise { display:none!important; }

/* ---- 容器 ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---- 顶部公告栏 ---- */
.top-bar { background: #1a3c20; color: #a8f0c0; font-size: .78rem; padding: 6px 0; text-align: center; }
.top-bar a { color: #7dff9e; margin: 0 4px; }
.top-bar a:hover { text-decoration: underline; }

/* ---- 头部导航 ---- */
.site-header { background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,.08); position: sticky; top: 0; z-index: 1000; }
.header-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; gap: 16px; height: 64px; }
.logo-wrap { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-text { font-size: 1.4rem; font-weight: 900; color: #1a3c20; letter-spacing: -0.5px; }
.logo-sub { font-size: .68rem; color: #888; display: block; line-height: 1.2; }
nav { flex: 1; }
.main-nav { display: flex; gap: 2px; align-items: center; flex-wrap: nowrap; }
.main-nav > li { position: relative; }
.main-nav > li > a { display: block; padding: 8px 10px; font-size: .84rem; font-weight: 600; color: #333; border-radius: 8px; transition: all .2s; white-space: nowrap; }
.main-nav > li > a:hover, .main-nav > li.active > a { background: #e8f5ec; color: #1a7a3c; }
.arrow { font-size: .65rem; opacity: .6; }
.dropdown { display: none; position: absolute; top: 100%; left: 0; background: #fff; border-radius: 10px; box-shadow: 0 8px 32px rgba(0,0,0,.12); min-width: 160px; padding: 8px 0; z-index: 999; }
.main-nav > li:hover .dropdown { display: block; }
.dropdown li a { display: block; padding: 8px 18px; font-size: .84rem; color: #444; transition: all .15s; }
.dropdown li a:hover { background: #e8f5ec; color: #1a7a3c; padding-left: 24px; }
.header-search { flex-shrink: 0; }
.search-wrap { display: flex; border: 1.5px solid #d0e8d8; border-radius: 24px; overflow: hidden; background: #f5faf6; }
.search-wrap input { border: none; background: none; padding: 6px 14px; font-size: .84rem; width: 160px; outline: none; color: #333; }
.search-wrap button { background: #1a7a3c; color: #fff; padding: 6px 14px; font-size: .84rem; transition: background .2s; }
.search-wrap button:hover { background: #155f30; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; margin-left: auto; }
.hamburger span { display: block; width: 24px; height: 2px; background: #333; border-radius: 2px; transition: all .3s; }

/* ---- 导航下方搜索栏 ---- */
.nav-search-bar { background: #f0faf4; border-bottom: 1px solid #d0e8d8; padding: 10px 0; }
.nav-search-bar .inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.search-full { display: flex; border: 1.5px solid #1a7a3c; border-radius: 28px; overflow: hidden; background: #fff; flex: 1; min-width: 260px; }
.search-full input { border: none; background: none; padding: 8px 18px; font-size: .9rem; flex: 1; outline: none; color: #333; }
.search-full button { background: #1a7a3c; color: #fff; padding: 8px 20px; font-size: .88rem; font-weight: 600; transition: background .2s; }
.search-full button:hover { background: #155f30; }
.search-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.search-tags span { background: #fff; border: 1px solid #1a7a3c; color: #1a7a3c; padding: 3px 12px; border-radius: 16px; font-size: .78rem; cursor: pointer; transition: all .2s; }
.search-tags span:hover { background: #1a7a3c; color: #fff; }

/* ---- 滚动公告 ---- */
.marquee-bar { background: linear-gradient(90deg,#1a7a3c,#2d9e5a,#1a7a3c); color: #fff; padding: 8px 0; overflow: hidden; }
.marquee-inner { display: flex; gap: 60px; white-space: nowrap; animation: marquee 30s linear infinite; font-size: .84rem; }
.marquee-inner span { flex-shrink: 0; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---- Hero Banner ---- */
.hero-banner { position: relative; min-height: 580px; display: flex; align-items: center; overflow: hidden; }
.hero-banner .bg-img { position: absolute; inset: 0; background: url('/images/banner.jpg') center/cover no-repeat; z-index: 0; }
.hero-banner .overlay { position: absolute; inset: 0; background: linear-gradient(135deg,rgba(15,40,20,.85) 0%,rgba(26,122,60,.6) 100%); z-index: 1; }
.hero-content { position: relative; z-index: 2; padding: 60px 20px; color: #fff; max-width: 700px; margin-left: 40px; }
.hero-badge { display: inline-block; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.3); padding: 4px 16px; border-radius: 20px; font-size: .82rem; margin-bottom: 20px; }
.hero-content h1 { font-size: clamp(2rem,5vw,3.2rem); font-weight: 900; line-height: 1.2; margin-bottom: 20px; text-shadow: 0 2px 8px rgba(0,0,0,.3); }
.hero-content h1 span { color: #7dff9e; }
.hero-content > p { font-size: 1rem; line-height: 1.8; color: rgba(255,255,255,.9); margin-bottom: 28px; max-width: 580px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }
.btn-primary { background: #1a7a3c; color: #fff; padding: 12px 28px; border-radius: 28px; font-size: .92rem; font-weight: 700; transition: all .2s; display: inline-block; border: 2px solid #1a7a3c; }
.btn-primary:hover { background: #155f30; border-color: #155f30; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(26,122,60,.4); color: #fff; }
.btn-outline { background: transparent; color: #fff; padding: 12px 28px; border-radius: 28px; font-size: .92rem; font-weight: 700; border: 2px solid rgba(255,255,255,.6); transition: all .2s; display: inline-block; }
.btn-outline:hover { background: rgba(255,255,255,.15); border-color: #fff; color: #fff; }
.hero-stats { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-stats .stat { text-align: center; }
.hero-stats .stat strong { display: block; font-size: 1.5rem; font-weight: 900; color: #7dff9e; }
.hero-stats .stat span { font-size: .78rem; color: rgba(255,255,255,.8); }

/* ---- 统计数字栏 ---- */
.stats-bar { background: #1a3c20; padding: 20px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.stat-item { text-align: center; color: #fff; }
.stat-item strong { display: block; font-size: 1.6rem; font-weight: 900; color: #7dff9e; }
.stat-item span { font-size: .8rem; color: rgba(255,255,255,.7); }

/* ---- 通用Section ---- */
.section { padding: 60px 0; }
.section-alt { background: #f8fdf9; }
.section-header { text-align: center; margin-bottom: 40px; }
.section-tag { display: inline-block; background: #e8f5ec; color: #1a7a3c; padding: 4px 14px; border-radius: 20px; font-size: .78rem; font-weight: 700; letter-spacing: 1px; margin-bottom: 10px; }
.section-header h2 { font-size: clamp(1.4rem,3vw,2rem); font-weight: 900; color: #1a3c20; margin-bottom: 12px; }
.section-header h2 span { color: #1a7a3c; }
.section-header p { color: #666; max-width: 680px; margin: 0 auto; font-size: .92rem; line-height: 1.8; }

/* ---- H5视频卡片（鼠标悬停显示播放按钮） ---- */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(280px,1fr)); gap: 24px; }
.video-card { background: #fff; border-radius: 14px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,.07); transition: transform .3s,box-shadow .3s; cursor: pointer; }
.video-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(0,0,0,.12); }
.video-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #1a3c20; }
/* H5 video元素 */
.card-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .3s; z-index: 1; }
/* 缩略图覆盖在video上 */
.card-thumb-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 2; transition: opacity .3s; }
/* 悬停时：隐藏缩略图，显示video */
.video-card:hover .card-thumb-img { opacity: 0; }
.video-card:hover .card-video { opacity: 1; }
/* 播放按钮 - 默认隐藏，悬停显示 */
.play-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%) scale(.8); width: 54px; height: 54px; background: rgba(26,122,60,.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; z-index: 10; opacity: 0; transition: opacity .3s,transform .3s; box-shadow: 0 4px 20px rgba(0,0,0,.3); }
.play-icon { color: #fff; font-size: 1.2rem; margin-left: 4px; }
/* 鼠标悬停显示播放按钮 */
.video-card:hover .play-btn { opacity: 1; transform: translate(-50%,-50%) scale(1); }
.video-duration { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,.75); color: #fff; padding: 2px 8px; border-radius: 6px; font-size: .75rem; z-index: 10; }
.video-tag { position: absolute; top: 8px; left: 8px; background: #1a7a3c; color: #fff; padding: 2px 10px; border-radius: 10px; font-size: .72rem; font-weight: 600; z-index: 10; }
.video-info { padding: 14px 16px; }
.video-info h3 { font-size: .9rem; font-weight: 700; color: #1a3c20; line-height: 1.4; margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-desc { font-size: .78rem; color: #888; line-height: 1.6; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-meta { display: flex; gap: 12px; font-size: .76rem; color: #aaa; }

/* ---- Tab导航 ---- */
.tab-nav { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; border-bottom: 2px solid #e8f5ec; padding-bottom: 12px; }
.tab-btn { padding: 8px 18px; border-radius: 24px; font-size: .86rem; font-weight: 600; color: #666; background: #f5f5f5; transition: all .2s; border: 1.5px solid transparent; }
.tab-btn:hover { background: #e8f5ec; color: #1a7a3c; }
.tab-btn.active { background: #1a7a3c; color: #fff; border-color: #1a7a3c; }

/* ---- AI赋能 ---- */
.ai-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(280px,1fr)); gap: 24px; }
.ai-card { background: #fff; border-radius: 14px; padding: 28px 24px; box-shadow: 0 2px 12px rgba(0,0,0,.06); border: 1.5px solid #e8f5ec; transition: all .3s; }
.ai-card:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(26,122,60,.12); border-color: #1a7a3c; }
.ai-icon { font-size: 2.2rem; margin-bottom: 14px; }
.ai-card h3 { font-size: 1.05rem; font-weight: 800; color: #1a3c20; margin-bottom: 10px; }
.ai-card p { font-size: .86rem; color: #666; line-height: 1.8; margin-bottom: 12px; }
.ai-badge { display: inline-block; background: #e8f5ec; color: #1a7a3c; padding: 3px 12px; border-radius: 12px; font-size: .75rem; font-weight: 600; }

/* ---- 娱乐专区 ---- */
.entertainment-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(300px,1fr)); gap: 24px; }
.ent-card { border-radius: 16px; overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,.1); }
.ent-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.ent-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.ent-card:hover .ent-img img { transform: scale(1.05); }
.ent-overlay { position: absolute; inset: 0; background: linear-gradient(to top,rgba(15,40,20,.9) 0%,rgba(15,40,20,.4) 60%,transparent 100%); display: flex; flex-direction: column; justify-content: flex-end; padding: 24px; color: #fff; opacity: 0; transition: opacity .3s; }
.ent-card:hover .ent-overlay { opacity: 1; }
.ent-overlay h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 8px; }
.ent-overlay p { font-size: .82rem; line-height: 1.6; margin-bottom: 14px; opacity: .9; }

/* ---- 社区功能 ---- */
.community-features { display: grid; grid-template-columns: repeat(auto-fill,minmax(280px,1fr)); gap: 24px; }
.community-card { background: #fff; border-radius: 14px; padding: 28px 24px; box-shadow: 0 2px 12px rgba(0,0,0,.06); border: 1.5px solid #e8f5ec; transition: all .3s; text-align: center; }
.community-card:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(26,122,60,.12); border-color: #1a7a3c; }
.community-icon { font-size: 2.4rem; margin-bottom: 14px; }
.community-card h3 { font-size: 1rem; font-weight: 800; color: #1a3c20; margin-bottom: 10px; }
.community-card p { font-size: .84rem; color: #666; line-height: 1.8; margin-bottom: 14px; }

/* ---- 专家团队 ---- */
.experts-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(260px,1fr)); gap: 24px; }
.expert-card { background: #fff; border-radius: 16px; overflow: hidden; box-shadow: 0 2px 16px rgba(0,0,0,.08); transition: all .3s; border: 1.5px solid #e8f5ec; }
.expert-card:hover { transform: translateY(-4px); box-shadow: 0 10px 32px rgba(26,122,60,.15); border-color: #1a7a3c; }
.expert-avatar { aspect-ratio: 4/3; overflow: hidden; background: #e8f5ec; }
.expert-avatar img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.expert-card:hover .expert-avatar img { transform: scale(1.05); }
.expert-body { padding: 20px; }
.expert-body h3 { font-size: 1.05rem; font-weight: 800; color: #1a3c20; margin-bottom: 4px; }
.expert-body .role { font-size: .8rem; color: #1a7a3c; font-weight: 600; margin-bottom: 8px; }
.credential-badge { display: inline-block; background: #f0faf4; border: 1px solid #c8e8d4; color: #1a7a3c; padding: 2px 10px; border-radius: 10px; font-size: .72rem; margin-bottom: 10px; }
.expert-body p { font-size: .82rem; color: #666; line-height: 1.7; margin-bottom: 12px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.award-tag { background: #fff8e1; color: #b8860b; padding: 2px 8px; border-radius: 8px; font-size: .72rem; }
.expert-btns { display: flex; gap: 8px; }

/* ---- 合作品牌 ---- */
.brands-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(140px,1fr)); gap: 16px; }
.brand-item { background: #f8fdf9; border: 1.5px solid #e8f5ec; border-radius: 12px; padding: 20px 12px; text-align: center; font-size: .82rem; color: #555; transition: all .2s; }
.brand-item:hover { border-color: #1a7a3c; background: #e8f5ec; color: #1a3c20; transform: translateY(-2px); }
.brand-icon { font-size: 1.8rem; margin-bottom: 8px; }

/* ---- 加入步骤 ---- */
.join-steps { display: grid; grid-template-columns: repeat(auto-fill,minmax(220px,1fr)); gap: 24px; }
.step-card { background: #fff; border-radius: 14px; padding: 28px 24px; text-align: center; box-shadow: 0 2px 12px rgba(0,0,0,.06); border: 1.5px solid #e8f5ec; transition: all .3s; }
.step-card:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(26,122,60,.12); border-color: #1a7a3c; }
.step-num { width: 48px; height: 48px; background: #1a7a3c; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; font-weight: 900; margin: 0 auto 16px; }
.step-card h3 { font-size: .98rem; font-weight: 800; color: #1a3c20; margin-bottom: 10px; }
.step-card p { font-size: .84rem; color: #666; line-height: 1.7; }

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid #e8f5ec; }
.faq-q { width: 100%; text-align: left; padding: 18px 0; font-size: .95rem; font-weight: 700; color: #1a3c20; display: flex; justify-content: space-between; align-items: center; gap: 12px; transition: color .2s; }
.faq-q:hover, .faq-q.open { color: #1a7a3c; }
.faq-icon { font-size: 1.2rem; flex-shrink: 0; transition: transform .3s; }
.faq-q.open .faq-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .4s ease,padding .3s; font-size: .88rem; color: #555; line-height: 1.9; }
.faq-a.open { max-height: 500px; padding-bottom: 18px; }

/* ---- 用户评价 ---- */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(280px,1fr)); gap: 20px; }
.review-card { background: #fff; border-radius: 14px; padding: 24px; box-shadow: 0 2px 12px rgba(0,0,0,.06); border: 1.5px solid #e8f5ec; transition: all .3s; }
.review-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(26,122,60,.1); }
.review-stars { color: #f5a623; font-size: 1rem; margin-bottom: 12px; }
.review-text { font-size: .86rem; color: #555; line-height: 1.8; margin-bottom: 16px; }
.review-user { display: flex; align-items: center; gap: 10px; }
.review-avatar { width: 38px; height: 38px; background: #1a7a3c; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: .88rem; font-weight: 700; flex-shrink: 0; }
.review-name { font-size: .86rem; font-weight: 700; color: #1a3c20; }
.review-date { font-size: .75rem; color: #aaa; }

/* ---- 联系我们 ---- */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(220px,1fr)); gap: 20px; margin-bottom: 40px; }
.contact-card { background: #f8fdf9; border-radius: 14px; padding: 28px 20px; text-align: center; border: 1.5px solid #e8f5ec; transition: all .3s; }
.contact-card:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(26,122,60,.1); border-color: #1a7a3c; }
.contact-icon { font-size: 2rem; margin-bottom: 12px; }
.contact-card h3 { font-size: .95rem; font-weight: 800; color: #1a3c20; margin-bottom: 8px; }
.contact-card p { font-size: .84rem; color: #666; line-height: 1.7; }
.contact-card a { color: #1a7a3c; }
.qr-wrap { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-item img { border-radius: 10px; border: 2px solid #e8f5ec; margin-bottom: 8px; }
.qr-item p { font-size: .8rem; color: #888; }

/* ---- 分享栏 ---- */
.share-bar { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; background: #f8fdf9; border-radius: 12px; padding: 16px 24px; border: 1.5px solid #e8f5ec; }
.share-bar > span { font-size: .88rem; color: #666; font-weight: 600; }
.share-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.share-btn { padding: 6px 16px; border-radius: 20px; font-size: .82rem; font-weight: 600; transition: all .2s; border: 1.5px solid; }
.share-wechat { color: #07c160; border-color: #07c160; }
.share-wechat:hover { background: #07c160; color: #fff; }
.share-weibo { color: #e6162d; border-color: #e6162d; }
.share-weibo:hover { background: #e6162d; color: #fff; }
.share-douyin { color: #010101; border-color: #010101; }
.share-douyin:hover { background: #010101; color: #fff; }
.share-bili { color: #00a1d6; border-color: #00a1d6; }
.share-bili:hover { background: #00a1d6; color: #fff; }

/* ---- 面包屑 ---- */
.breadcrumb { background: #f8fdf9; border-bottom: 1px solid #e8f5ec; padding: 10px 0; font-size: .82rem; color: #888; }
.breadcrumb a { color: #1a7a3c; }
.breadcrumb span { margin: 0 6px; }

/* ---- 内页Banner ---- */
.inner-banner { background: linear-gradient(135deg,#1a3c20 0%,#1a7a3c 100%); color: #fff; padding: 50px 20px; text-align: center; }
.inner-banner h1 { font-size: clamp(1.4rem,3vw,2.2rem); font-weight: 900; margin-bottom: 10px; }
.inner-banner p { font-size: .9rem; opacity: .85; }

/* ---- 按钮变体 ---- */
.btn-sm { display: inline-block; padding: 6px 16px; border-radius: 20px; font-size: .82rem; font-weight: 600; transition: all .2s; }
.btn-green { background: #1a7a3c; color: #fff; }
.btn-green:hover { background: #155f30; color: #fff; }
.btn-ghost { border: 1.5px solid #1a7a3c; color: #1a7a3c; }
.btn-ghost:hover { background: #1a7a3c; color: #fff; }

/* ---- 底部 ---- */
.site-footer { background: #1a3c20; color: #a8f0c0; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { font-size: .84rem; line-height: 1.8; color: #a8f0c0; opacity: .8; }
.footer-brand .logo-text { color: #7dff9e; }
.footer-col h4 { font-size: .92rem; font-weight: 800; color: #7dff9e; margin-bottom: 14px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: .82rem; color: #a8f0c0; opacity: .8; transition: all .2s; }
.footer-col ul li a:hover { opacity: 1; color: #7dff9e; padding-left: 4px; }
.footer-trust { display: flex; gap: 20px; flex-wrap: wrap; padding: 20px 0; border-top: 1px solid rgba(255,255,255,.1); border-bottom: 1px solid rgba(255,255,255,.1); margin-bottom: 20px; }
.trust-item { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: #a8f0c0; }
.footer-bottom { background: rgba(0,0,0,.2); padding: 16px 0; text-align: center; }
.footer-bottom p { font-size: .78rem; color: rgba(255,255,255,.6); }
.footer-bottom a { color: #7dff9e; }
.footer-bottom strong { color: #7dff9e; }

/* ============================================================
   响应式 - 移动端适配（百度移动端搜索权重优化）
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .main-nav > li > a { padding: 8px 6px; font-size: .8rem; }
}
@media (max-width: 768px) {
  nav { display: none; }
  nav.open { display: block; position: fixed; top: 64px; left: 0; right: 0; background: #fff; box-shadow: 0 8px 24px rgba(0,0,0,.12); z-index: 999; max-height: calc(100vh - 64px); overflow-y: auto; }
  .main-nav { flex-direction: column; padding: 16px; gap: 4px; }
  .main-nav > li > a { padding: 10px 14px; }
  .dropdown { display: none !important; }
  .hamburger { display: flex; }
  .header-search { display: none; }
  .hero-banner { min-height: 420px; }
  .hero-content { padding: 40px 20px; margin-left: 0; }
  .hero-btns { flex-direction: column; align-items: flex-start; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 12px; }
  .video-grid { grid-template-columns: repeat(auto-fill,minmax(240px,1fr)); gap: 16px; }
  .experts-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .nav-search-bar .inner { flex-direction: column; align-items: stretch; }
  .search-full { min-width: unset; }
  .entertainment-grid { grid-template-columns: 1fr; }
  .ent-overlay { opacity: 1; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .community-features { grid-template-columns: 1fr; }
  .join-steps { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .brands-grid { grid-template-columns: repeat(3,1fr); }
  .tab-btn { padding: 6px 12px; font-size: .78rem; }
  .hero-content h1 { font-size: 1.7rem; }
  .section { padding: 40px 0; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
}