/* ===== 国产 - 全站样式表 ===== */
/* 品牌色系：主色 #E63946 辅色 #FF6B35 深色 #1a1a2e 浅色 #f8f9fa */

/* 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:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:#333;background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:#E63946;text-decoration:none;transition:color .3s}
a:hover{color:#FF6B35}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 按钮 */
.btn{display:inline-block;padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s;border:none;text-align:center}
.btn-primary{background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff;box-shadow:0 4px 15px rgba(230,57,70,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(230,57,70,.4);color:#fff}
.btn-outline{border:2px solid #E63946;color:#E63946;background:transparent}
.btn-outline:hover{background:#E63946;color:#fff}
.btn-sm{padding:8px 18px;font-size:13px}

/* 顶部导航 */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(26,26,46,.95);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.1);transition:all .3s}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo-link{display:flex;align-items:center;gap:10px}
.logo-icon{width:40px;height:40px;border-radius:8px}
.logo-text{height:35px;width:auto}
.nav-list{display:flex;gap:8px}
.nav-item a{color:rgba(255,255,255,.8);padding:8px 16px;border-radius:6px;font-size:15px;transition:all .3s}
.nav-item a:hover,.nav-item.active a{color:#fff;background:rgba(230,57,70,.3)}
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.mobile-menu-btn span{width:24px;height:2px;background:#fff;border-radius:2px;transition:all .3s}

/* 搜索栏 */
.search-bar-section{margin-top:68px;padding:20px 0;background:#f8f9fa;border-bottom:1px solid #eee}
.search-wrapper{display:flex;max-width:600px;margin:0 auto;background:#fff;border-radius:50px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.08)}
.search-input{flex:1;padding:12px 24px;border:none;font-size:15px;outline:none}
.search-btn{padding:12px 24px;background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff;border:none;cursor:pointer;transition:opacity .3s}
.search-btn:hover{opacity:.9}
.search-hot-tags{display:flex;align-items:center;gap:8px;margin-top:12px;flex-wrap:wrap;justify-content:center}
.hot-label{font-size:13px;color:#999}
.hot-tag{font-size:13px;color:#666;padding:4px 12px;background:#fff;border-radius:20px;border:1px solid #eee;transition:all .3s}
.hot-tag:hover{color:#E63946;border-color:#E63946}

/* Hero首屏 */
.hero-section{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0}
.hero-img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,26,46,.85),rgba(26,26,46,.6))}
.hero-content{position:relative;z-index:2;padding:60px 0}
.hero-text{max-width:700px}
.hero-title{font-size:38px;font-weight:800;color:#fff;line-height:1.3;margin-bottom:16px}
.hero-subtitle{font-size:17px;color:rgba(255,255,255,.85);margin-bottom:30px;line-height:1.8}
.hero-stats{display:flex;gap:30px;margin-bottom:30px;flex-wrap:wrap}
.stat-item{text-align:center}
.stat-num{display:block;font-size:28px;font-weight:800;color:#FF6B35}
.stat-label{font-size:13px;color:rgba(255,255,255,.7)}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}

/* 通用Section */
section{padding:60px 0}
section:nth-child(even){background:#f8f9fa}
.section-header{text-align:center;margin-bottom:40px}
.section-title{font-size:28px;font-weight:700;color:#1a1a2e;margin-bottom:12px}
.section-desc{font-size:15px;color:#666;max-width:700px;margin:0 auto}
.section-more{text-align:center;margin-top:30px}

/* 服务卡片 */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{background:#fff;border-radius:12px;padding:30px;text-align:center;box-shadow:0 2px 15px rgba(0,0,0,.06);transition:all .3s;border:1px solid #f0f0f0}
.service-card:hover{transform:translateY(-5px);box-shadow:0 8px 30px rgba(0,0,0,.1)}
.service-icon{margin-bottom:16px;color:#E63946}
.service-icon svg{stroke:#E63946}
.service-name{font-size:18px;font-weight:600;color:#1a1a2e;margin-bottom:10px}
.service-text{font-size:14px;color:#666;line-height:1.7}

/* 视频卡片 */
.video-grid,.video-grid-large{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 15px rgba(0,0,0,.06);transition:all .3s;border:1px solid #f0f0f0}
.video-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.12)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.3);opacity:0;transition:opacity .3s}
.video-card:hover .play-overlay{opacity:1}
.play-btn-circle{width:56px;height:56px;border-radius:50%;background:rgba(230,57,70,.9);display:flex;align-items:center;justify-content:center;transition:transform .3s}
.play-btn-circle:hover{transform:scale(1.1)}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px}
.video-tag{position:absolute;top:8px;left:8px;background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff;padding:3px 10px;border-radius:4px;font-size:12px}
.video-info{padding:16px}
.video-title{font-size:15px;font-weight:600;color:#1a1a2e;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;font-size:12px;color:#999}

/* 视频Tab */
.video-tabs{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}
.tab-btn{padding:8px 20px;border-radius:20px;border:1px solid #ddd;background:#fff;color:#666;font-size:14px;cursor:pointer;transition:all .3s}
.tab-btn.active,.tab-btn:hover{background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff;border-color:transparent}

/* 筛选栏 */
.filter-section{padding:30px 0;background:#fff;border-bottom:1px solid #eee}
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.filter-title{font-size:16px;font-weight:600;color:#1a1a2e;margin-right:8px}
.filter-tags{display:flex;gap:8px;flex-wrap:wrap;flex:1}
.filter-btn{padding:6px 16px;border-radius:20px;border:1px solid #ddd;background:#fff;color:#666;font-size:13px;cursor:pointer;transition:all .3s}
.filter-btn.active,.filter-btn:hover{background:#E63946;color:#fff;border-color:#E63946}
.filter-sort{display:flex;align-items:center;gap:8px;font-size:13px;color:#666}
.sort-select{padding:6px 12px;border:1px solid #ddd;border-radius:6px;font-size:13px;outline:none}

/* 影视传媒 */
.media-showcase{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:start}
.media-main{position:relative;border-radius:12px;overflow:hidden}
.media-main img{width:100%;height:auto}
.media-main-info{padding:20px;background:#fff;border:1px solid #f0f0f0;border-radius:0 0 12px 12px}
.media-main-info h3{font-size:18px;font-weight:600;color:#1a1a2e;margin-bottom:8px}
.media-main-info p{font-size:14px;color:#666;line-height:1.7}
.media-list{display:flex;flex-direction:column;gap:16px}
.media-item{display:flex;gap:16px;padding:16px;background:#fff;border-radius:10px;border:1px solid #f0f0f0;transition:all .3s}
.media-item:hover{box-shadow:0 4px 15px rgba(0,0,0,.08)}
.media-icon{font-size:28px;flex-shrink:0}
.media-item-info h4{font-size:16px;font-weight:600;color:#1a1a2e;margin-bottom:4px}
.media-item-info p{font-size:13px;color:#666}

/* 娱乐专区 */
.ent-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.ent-card{position:relative;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 2px 15px rgba(0,0,0,.06);transition:all .3s}
.ent-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.12)}
.ent-large{grid-column:1/-1}
.ent-large img{height:350px;object-fit:cover;width:100%}
.ent-card img{width:100%;height:200px;object-fit:cover}
.ent-card-info{padding:20px}
.ent-badge{display:inline-block;padding:3px 10px;background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff;border-radius:4px;font-size:12px;margin-bottom:8px}
.ent-card-info h3{font-size:18px;font-weight:600;color:#1a1a2e;margin-bottom:8px}
.ent-card-info p{font-size:14px;color:#666;margin-bottom:10px}
.ent-stats{display:flex;gap:16px;font-size:13px;color:#999}

/* AI专区 */
.ai-features{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.ai-card{background:#fff;border-radius:12px;padding:30px;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:all .3s}
.ai-card:hover{border-color:#E63946;box-shadow:0 4px 20px rgba(230,57,70,.1)}
.ai-card-header{display:flex;align-items:center;gap:16px;margin-bottom:12px}
.ai-num{font-size:32px;font-weight:800;color:rgba(230,57,70,.2)}
.ai-card h3{font-size:18px;font-weight:600;color:#1a1a2e}
.ai-card p{font-size:14px;color:#666;margin-bottom:12px}
.ai-features-list{padding-left:20px}
.ai-features-list li{font-size:13px;color:#555;margin-bottom:4px;list-style:disc}

/* 社区功能 */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.comm-card{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:all .3s}
.comm-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.1)}
.comm-icon{font-size:36px;margin-bottom:12px}
.comm-card h3{font-size:17px;font-weight:600;color:#1a1a2e;margin-bottom:8px}
.comm-card p{font-size:14px;color:#666;margin-bottom:10px}
.comm-stat{font-size:13px;color:#E63946;font-weight:600}

/* 专家团队 */
.experts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.expert-card{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:all .3s}
.expert-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.1)}
.expert-avatar{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 12px;border:3px solid #f0f0f0}
.expert-name{font-size:18px;font-weight:600;color:#1a1a2e;margin-bottom:4px}
.expert-role{display:inline-block;font-size:13px;color:#E63946;margin-bottom:8px}
.expert-bio{font-size:13px;color:#666;margin-bottom:12px;line-height:1.6}
.expert-tags{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;margin-bottom:12px}
.expert-tags span{padding:3px 10px;background:#f8f9fa;border-radius:4px;font-size:12px;color:#666}
.expert-actions{display:flex;gap:8px;justify-content:center}

/* 用户评价 */
.reviews-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0}
.review-stars{color:#FFB800;font-size:18px;margin-bottom:10px}
.review-text{font-size:14px;color:#555;line-height:1.7;margin-bottom:12px;font-style:italic}
.review-author{display:flex;align-items:center;gap:8px;font-size:13px}
.review-author strong{color:#1a1a2e}
.review-author span{color:#999}

/* 合作品牌 */
.partners-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.partner-logo{background:#fff;border-radius:10px;padding:24px;text-align:center;border:1px solid #f0f0f0;transition:all .3s}
.partner-logo:hover{box-shadow:0 4px 15px rgba(0,0,0,.08);border-color:#E63946}
.partner-logo span{font-size:16px;font-weight:600;color:#555}

/* How-To步骤 */
.howto-steps{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.step-card{background:#fff;border-radius:12px;padding:30px;text-align:center;flex:1;min-width:220px;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0}
.step-num{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;margin:0 auto 12px}
.step-card h3{font-size:16px;font-weight:600;color:#1a1a2e;margin-bottom:8px}
.step-card p{font-size:13px;color:#666}
.step-arrow{font-size:24px;color:#ddd;font-weight:700}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid #f0f0f0;border-radius:10px;margin-bottom:12px;overflow:hidden;background:#fff}
.faq-question{width:100%;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;background:none;border:none;cursor:pointer;font-size:15px;font-weight:600;color:#1a1a2e;text-align:left}
.faq-question:hover{color:#E63946}
.faq-arrow{font-size:12px;color:#999;transition:transform .3s}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s}
.faq-item.open .faq-answer{padding:0 20px 16px;max-height:500px}
.faq-answer p{font-size:14px;color:#666;line-height:1.7}

/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.contact-card{background:#fff;border-radius:12px;padding:30px;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0}
.contact-card h3{font-size:18px;font-weight:600;color:#1a1a2e;margin-bottom:16px}
.contact-list{display:flex;flex-direction:column;gap:8px}
.contact-list li{font-size:14px;color:#555}
.contact-qrcodes{display:flex;gap:20px;margin-top:16px}
.qrcode-item{text-align:center}
.qrcode-item img{width:100px;height:100px;border-radius:8px;border:1px solid #eee}
.qrcode-item span{display:block;font-size:12px;color:#999;margin-top:6px}

/* 分享按钮 */
.share-section{padding:40px 0;text-align:center;background:#1a1a2e}
.share-title{color:#fff;font-size:18px;margin-bottom:16px}
.share-buttons{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.share-btn{padding:10px 24px;border-radius:8px;color:#fff;font-size:14px;font-weight:600;transition:all .3s}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#000}
.share-bilibili{background:#00A1D6}
.share-qq{background:#12B7F5}
.share-btn:hover{opacity:.85;color:#fff;transform:translateY(-2px)}

/* 页脚 */
.site-footer{background:#1a1a2e;color:rgba(255,255,255,.7);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.footer-logo{height:40px;width:auto;margin-bottom:12px}
.footer-desc{font-size:13px;line-height:1.7;margin-bottom:16px}
.footer-qrcodes{display:flex;gap:16px}
.footer-links h4{color:#fff;font-size:16px;margin-bottom:12px}
.footer-links li{margin-bottom:8px}
.footer-links a{color:rgba(255,255,255,.6);font-size:14px;transition:color .3s}
.footer-links a:hover{color:#FF6B35}
.footer-links li:not(:has(a)){font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom{margin-top:30px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:13px}

/* 面包屑 */
.breadcrumb-nav{margin-top:68px;padding:12px 0;background:#f8f9fa;border-bottom:1px solid #eee}
.breadcrumb-list{display:flex;gap:8px;font-size:13px}
.breadcrumb-list li::after{content:">";margin-left:8px;color:#999}
.breadcrumb-list li:last-child::after{content:""}
.breadcrumb-list a{color:#666}
.breadcrumb-list a:hover{color:#E63946}
.breadcrumb-list li:last-child{color:#1a1a2e;font-weight:600}

/* 页面Hero */
.page-hero{padding:50px 0 30px;background:linear-gradient(135deg,#1a1a2e,#2d2d4e);text-align:center}
.page-title{font-size:32px;font-weight:700;color:#fff;margin-bottom:12px}
.page-subtitle{font-size:15px;color:rgba(255,255,255,.7)}

/* 创作者等级 */
.level-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.level-card{background:#fff;border-radius:12px;padding:24px;text-align:center;border:2px solid #f0f0f0;transition:all .3s}
.level-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.1)}
.level-badge{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;color:#fff;margin:0 auto 12px}
.level-bronze .level-badge{background:#CD7F32}
.level-silver .level-badge{background:#C0C0C0}
.level-gold .level-badge{background:#FFD700}
.level-diamond .level-badge{background:linear-gradient(135deg,#E63946,#FF6B35)}
.level-card h3{font-size:17px;font-weight:600;color:#1a1a2e;margin-bottom:8px}
.level-card p{font-size:13px;color:#666;margin-bottom:12px}
.level-card ul{text-align:left;padding-left:16px}
.level-card li{font-size:13px;color:#555;margin-bottom:4px;list-style:disc}

/* 创作流程 */
.process-steps{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
.process-step{flex:1;min-width:180px;background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0;position:relative}
.process-num{font-size:28px;font-weight:800;color:rgba(230,57,70,.2);margin-bottom:8px}
.process-step h3{font-size:15px;font-weight:600;color:#1a1a2e;margin-bottom:8px}
.process-step p{font-size:13px;color:#666}

/* 课程卡片 */
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.course-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:all .3s}
.course-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.12)}
.course-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.course-thumb img{width:100%;height:100%;object-fit:cover}
.course-badge{position:absolute;top:8px;left:8px;background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff;padding:3px 10px;border-radius:4px;font-size:12px}
.course-card h3{padding:16px 16px 8px;font-size:15px;font-weight:600;color:#1a1a2e}
.course-card p{padding:0 16px;font-size:13px;color:#666}
.course-meta{padding:12px 16px;display:flex;gap:16px;font-size:12px;color:#999}

/* 案例卡片 */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.case-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0}
.case-avatar{width:60px;height:60px;border-radius:50%;object-fit:cover;margin-bottom:12px}
.case-card h3{font-size:17px;font-weight:600;color:#1a1a2e;margin-bottom:4px}
.case-tag{display:inline-block;padding:2px 8px;background:#f8f9fa;border-radius:4px;font-size:12px;color:#E63946;margin-bottom:8px}
.case-card p{font-size:14px;color:#555;line-height:1.7;margin-bottom:12px;font-style:italic}
.case-stats{display:flex;gap:16px;font-size:13px;color:#999}

/* 直播卡片 */
.live-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.live-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:all .3s}
.live-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.12)}
.live-thumb{position:relative;aspect-ratio:4/3;overflow:hidden}
.live-thumb img{width:100%;height:100%;object-fit:cover}
.live-badge{position:absolute;top:8px;left:8px;background:#E63946;color:#fff;padding:3px 10px;border-radius:4px;font-size:12px;animation:pulse 2s infinite}
.live-viewers{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.7);color:#fff;padding:3px 10px;border-radius:4px;font-size:12px}
.live-card h3{padding:12px 16px 4px;font-size:15px;font-weight:600;color:#1a1a2e}
.live-card p{padding:0 16px 12px;font-size:13px;color:#666}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.6}}

/* 话题列表 */
.topics-list{max-width:800px;margin:0 auto}
.topic-item{display:flex;align-items:center;gap:16px;padding:14px 16px;border-bottom:1px solid #f0f0f0;transition:background .3s}
.topic-item:hover{background:#f8f9fa}
.topic-rank{width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#999;background:#f0f0f0;flex-shrink:0}
.topic-rank.hot{background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff}
.topic-info{flex:1}
.topic-info h4{font-size:15px;font-weight:600;color:#1a1a2e;margin-bottom:2px}
.topic-info span{font-size:12px;color:#999}
.topic-heat{font-size:13px;color:#E63946}

/* 活动卡片 */
.activity-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.activity-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:all .3s}
.activity-card:hover{box-shadow:0 8px 25px rgba(0,0,0,.12)}
.activity-badge{display:inline-block;padding:3px 10px;background:#E63946;color:#fff;border-radius:4px;font-size:12px;margin-bottom:10px}
.activity-badge.upcoming{background:#FF6B35}
.activity-card h3{font-size:16px;font-weight:600;color:#1a1a2e;margin-bottom:8px}
.activity-card p{font-size:14px;color:#666;margin-bottom:12px}
.activity-meta{display:flex;flex-direction:column;gap:4px;font-size:12px;color:#999}

/* 社区规范 */
.rules-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.rule-item{background:#fff;border-radius:10px;padding:24px;border-left:4px solid #E63946;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.rule-item h4{font-size:16px;font-weight:600;color:#1a1a2e;margin-bottom:6px}
.rule-item p{font-size:14px;color:#666}

/* 工具卡片 */
.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tool-card{background:#fff;border-radius:12px;padding:30px;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:all .3s}
.tool-card:hover{border-color:#E63946;box-shadow:0 8px 25px rgba(230,57,70,.1)}
.tool-featured{border-top:3px solid #E63946}
.tool-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tool-badge{padding:3px 10px;background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff;border-radius:4px;font-size:12px}
.tool-card h3{font-size:18px;font-weight:600;color:#1a1a2e}
.tool-card p{font-size:14px;color:#666;margin-bottom:12px}
.tool-features{padding-left:18px;margin-bottom:16px}
.tool-features li{font-size:13px;color:#555;margin-bottom:4px;list-style:disc}

/* 版本对比表 */
.pricing-table{overflow-x:auto}
.compare-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 15px rgba(0,0,0,.06)}
.compare-table th,.compare-table td{padding:14px 20px;text-align:center;border-bottom:1px solid #f0f0f0;font-size:14px}
.compare-table thead th{background:#1a1a2e;color:#fff;font-weight:600}
.compare-table thead th:first-child{text-align:left}
.compare-table td:first-child{text-align:left;font-weight:600;color:#1a1a2e}
.compare-table tbody tr:hover{background:#f8f9fa}

/* 更新日志 */
.changelog-list{max-width:800px;margin:0 auto}
.changelog-item{display:flex;gap:20px;padding:16px 0;border-bottom:1px solid #f0f0f0}
.changelog-date{flex-shrink:0;font-size:13px;color:#999;padding-top:2px;min-width:100px}
.changelog-content h4{font-size:15px;font-weight:600;color:#1a1a2e;margin-bottom:4px}
.changelog-content p{font-size:13px;color:#666}

/* 创作者推荐 */
.creator-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.creator-card{background:#fff;border-radius:12px;padding:20px;text-align:center;box-shadow:0 2px 15px rgba(0,0,0,.06);border:1px solid #f0f0f0;transition:all .3s}
.creator-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.1)}
.creator-avatar{width:64px;height:64px;border-radius:50%;object-fit:cover;margin:0 auto 10px}
.creator-card h4{font-size:15px;font-weight:600;color:#1a1a2e;margin-bottom:4px}
.creator-card span{font-size:12px;color:#E63946;display:block;margin-bottom:6px}
.creator-card p{font-size:12px;color:#666;margin-bottom:10px}

/* 排行榜 */
.ranking-list{max-width:800px;margin:0 auto}
.ranking-item{display:flex;align-items:center;gap:16px;padding:14px 16px;border-bottom:1px solid #f0f0f0;transition:background .3s}
.ranking-item:hover{background:#f8f9fa}
.rank-num{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#999;background:#f0f0f0;flex-shrink:0}
.rank-num.rank-top{background:linear-gradient(135deg,#E63946,#FF6B35);color:#fff}
.rank-info h4{font-size:15px;font-weight:600;color:#1a1a2e;margin-bottom:2px}
.rank-info span{font-size:12px;color:#999}

/* 移动端适配 */
@media(max-width:1024px){
  .services-grid,.community-grid,.experts-grid,.live-grid,.activity-grid,.tools-grid,.course-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .level-grid{grid-template-columns:repeat(2,1fr)}
  .video-grid,.video-grid-large{grid-template-columns:repeat(2,1fr)}
  .creator-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#1a1a2e;padding:16px;border-top:1px solid rgba(255,255,255,.1)}
  .main-nav.open{display:block}
  .nav-list{flex-direction:column}
  .mobile-menu-btn{display:flex}
  .hero-title{font-size:26px}
  .hero-stats{gap:16px}
  .stat-num{font-size:22px}
  .section-title{font-size:22px}
  .services-grid,.community-grid,.experts-grid,.live-grid,.activity-grid,.tools-grid,.course-grid,.reviews-grid,.case-grid,.contact-grid,.rules-grid,.ai-features{grid-template-columns:1fr}
  .video-grid,.video-grid-large{grid-template-columns:1fr}
  .media-showcase{grid-template-columns:1fr}
  .ent-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .level-grid{grid-template-columns:1fr}
  .partners-wall{grid-template-columns:repeat(2,1fr)}
  .creator-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{flex-direction:column}
  .step-arrow{transform:rotate(90deg)}
  .page-hero{padding:30px 0 20px}
  .page-title{font-size:24px}
  .filter-bar{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .hero-section{min-height:400px}
  .hero-title{font-size:22px}
  .hero-actions{flex-direction:column}
  .btn{width:100%;text-align:center}
  .partners-wall{grid-template-columns:1fr 1fr}
  .creator-grid{grid-template-columns:1fr}
}